diff options
Diffstat (limited to 'builtin')
102 files changed, 24138 insertions, 14799 deletions
diff --git a/builtin/add.c b/builtin/add.c index 1c42900ff8..b1dddb4ac6 100644 --- a/builtin/add.c +++ b/builtin/add.c @@ -5,7 +5,9 @@ */ #include "cache.h" #include "builtin.h" +#include "lockfile.h" #include "dir.h" +#include "pathspec.h" #include "exec_cmd.h" #include "cache-tree.h" #include "run-command.h" @@ -14,16 +16,17 @@ #include "diffcore.h" #include "revision.h" #include "bulk-checkin.h" +#include "argv-array.h" static const char * const builtin_add_usage[] = { - "git add [options] [--] <filepattern>...", + N_("git add [<options>] [--] <pathspec>..."), NULL }; static int patch_interactive, add_interactive, edit_interactive; static int take_worktree_changes; struct update_callback_data { - int flags; + int flags, force_mode; int add_errors; }; @@ -62,7 +65,8 @@ static void update_callback(struct diff_queue_struct *q, die(_("unexpected diff status %c"), p->status); case DIFF_STATUS_MODIFIED: case DIFF_STATUS_TYPE_CHANGED: - if (add_file_to_index(&the_index, path, data->flags)) { + if (add_file_to_index(&the_index, path, + data->flags, data->force_mode)) { if (!(data->flags & ADD_CACHE_IGNORE_ERRORS)) die(_("updating files failed")); data->add_errors++; @@ -80,190 +84,106 @@ static void update_callback(struct diff_queue_struct *q, } } -int add_files_to_cache(const char *prefix, const char **pathspec, int flags) +int add_files_to_cache(const char *prefix, const struct pathspec *pathspec, + int flags, int force_mode) { struct update_callback_data data; struct rev_info rev; + + memset(&data, 0, sizeof(data)); + data.flags = flags; + data.force_mode = force_mode; + init_revisions(&rev, prefix); setup_revisions(0, NULL, &rev, NULL); - init_pathspec(&rev.prune_data, pathspec); + if (pathspec) + copy_pathspec(&rev.prune_data, pathspec); rev.diffopt.output_format = DIFF_FORMAT_CALLBACK; rev.diffopt.format_callback = update_callback; - data.flags = flags; - data.add_errors = 0; rev.diffopt.format_callback_data = &data; rev.max_count = 0; /* do not compare unmerged paths with stage #2 */ run_diff_files(&rev, DIFF_RACY_IS_MODIFIED); return !!data.add_errors; } -static void fill_pathspec_matches(const char **pathspec, char *seen, int specs) -{ - int num_unmatched = 0, i; - - /* - * Since we are walking the index as if we were walking the directory, - * we have to mark the matched pathspec as seen; otherwise we will - * mistakenly think that the user gave a pathspec that did not match - * anything. - */ - for (i = 0; i < specs; i++) - if (!seen[i]) - num_unmatched++; - if (!num_unmatched) - return; - for (i = 0; i < active_nr; i++) { - struct cache_entry *ce = active_cache[i]; - match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, seen); - } -} - -static char *find_used_pathspec(const char **pathspec) +static char *prune_directory(struct dir_struct *dir, struct pathspec *pathspec, int prefix) { char *seen; int i; - - for (i = 0; pathspec[i]; i++) - ; /* just counting */ - seen = xcalloc(i, 1); - fill_pathspec_matches(pathspec, seen, i); - return seen; -} - -static char *prune_directory(struct dir_struct *dir, const char **pathspec, int prefix) -{ - char *seen; - int i, specs; struct dir_entry **src, **dst; - for (specs = 0; pathspec[specs]; specs++) - /* nothing */; - seen = xcalloc(specs, 1); + seen = xcalloc(pathspec->nr, 1); src = dst = dir->entries; i = dir->nr; while (--i >= 0) { struct dir_entry *entry = *src++; - if (match_pathspec(pathspec, entry->name, entry->len, - prefix, seen)) + if (dir_path_match(entry, pathspec, prefix, seen)) *dst++ = entry; } dir->nr = dst - dir->entries; - fill_pathspec_matches(pathspec, seen, specs); + add_pathspec_matches_against_index(pathspec, seen); return seen; } -static void treat_gitlinks(const char **pathspec) -{ - int i; - - if (!pathspec || !*pathspec) - return; - - for (i = 0; i < active_nr; i++) { - struct cache_entry *ce = active_cache[i]; - if (S_ISGITLINK(ce->ce_mode)) { - int len = ce_namelen(ce), j; - for (j = 0; pathspec[j]; j++) { - int len2 = strlen(pathspec[j]); - if (len2 <= len || pathspec[j][len] != '/' || - memcmp(ce->name, pathspec[j], len)) - continue; - if (len2 == len + 1) - /* strip trailing slash */ - pathspec[j] = xstrndup(ce->name, len); - else - die (_("Path '%s' is in submodule '%.*s'"), - pathspec[j], len, ce->name); - } - } - } -} - -static void refresh(int verbose, const char **pathspec) +static void refresh(int verbose, const struct pathspec *pathspec) { char *seen; - int i, specs; + int i; - for (specs = 0; pathspec[specs]; specs++) - /* nothing */; - seen = xcalloc(specs, 1); + seen = xcalloc(pathspec->nr, 1); refresh_index(&the_index, verbose ? REFRESH_IN_PORCELAIN : REFRESH_QUIET, pathspec, seen, _("Unstaged changes after refreshing the index:")); - for (i = 0; i < specs; i++) { + for (i = 0; i < pathspec->nr; i++) { if (!seen[i]) - die(_("pathspec '%s' did not match any files"), pathspec[i]); + die(_("pathspec '%s' did not match any files"), + pathspec->items[i].match); } free(seen); } -static const char **validate_pathspec(int argc, const char **argv, const char *prefix) -{ - const char **pathspec = get_pathspec(prefix, argv); - - if (pathspec) { - const char **p; - for (p = pathspec; *p; p++) { - if (has_symlink_leading_path(*p, strlen(*p))) { - int len = prefix ? strlen(prefix) : 0; - die(_("'%s' is beyond a symbolic link"), *p + len); - } - } - } - - return pathspec; -} - int run_add_interactive(const char *revision, const char *patch_mode, - const char **pathspec) + const struct pathspec *pathspec) { - int status, ac, pc = 0; - const char **args; - - if (pathspec) - while (pathspec[pc]) - pc++; + int status, i; + struct argv_array argv = ARGV_ARRAY_INIT; - args = xcalloc(sizeof(const char *), (pc + 5)); - ac = 0; - args[ac++] = "add--interactive"; + argv_array_push(&argv, "add--interactive"); if (patch_mode) - args[ac++] = patch_mode; + argv_array_push(&argv, patch_mode); if (revision) - args[ac++] = revision; - args[ac++] = "--"; - if (pc) { - memcpy(&(args[ac]), pathspec, sizeof(const char *) * pc); - ac += pc; - } - args[ac] = NULL; - - status = run_command_v_opt(args, RUN_GIT_CMD); - free(args); + argv_array_push(&argv, revision); + argv_array_push(&argv, "--"); + for (i = 0; i < pathspec->nr; i++) + /* pass original pathspec, to be re-parsed */ + argv_array_push(&argv, pathspec->items[i].original); + + status = run_command_v_opt(argv.argv, RUN_GIT_CMD); + argv_array_clear(&argv); return status; } int interactive_add(int argc, const char **argv, const char *prefix, int patch) { - const char **pathspec = NULL; + struct pathspec pathspec; - if (argc) { - pathspec = validate_pathspec(argc, argv, prefix); - if (!pathspec) - return -1; - } + parse_pathspec(&pathspec, 0, + PATHSPEC_PREFER_FULL | + PATHSPEC_SYMLINK_LEADING_PATH | + PATHSPEC_PREFIX_ORIGIN, + prefix, argv); return run_add_interactive(NULL, patch ? "--patch" : NULL, - pathspec); + &pathspec); } static int edit_patch(int argc, const char **argv, const char *prefix) { - char *file = xstrdup(git_path("ADD_EDIT.patch")); + char *file = git_pathdup("ADD_EDIT.patch"); const char *apply_argv[] = { "apply", "--recount", "--cached", NULL, NULL }; - struct child_process child; + struct child_process child = CHILD_PROCESS_INIT; struct rev_info rev; int out; struct stat st; @@ -273,35 +193,38 @@ static int edit_patch(int argc, const char **argv, const char *prefix) git_config(git_diff_basic_config, NULL); /* no "diff" UI options */ if (read_cache() < 0) - die (_("Could not read the index")); + die(_("Could not read the index")); init_revisions(&rev, prefix); rev.diffopt.context = 7; argc = setup_revisions(argc, argv, &rev, NULL); rev.diffopt.output_format = DIFF_FORMAT_PATCH; - out = open(file, O_CREAT | O_WRONLY, 0644); + rev.diffopt.use_color = 0; + DIFF_OPT_SET(&rev.diffopt, IGNORE_DIRTY_SUBMODULES); + out = open(file, O_CREAT | O_WRONLY, 0666); if (out < 0) - die (_("Could not open '%s' for writing."), file); + die(_("Could not open '%s' for writing."), file); rev.diffopt.file = xfdopen(out, "w"); rev.diffopt.close_file = 1; if (run_diff_files(&rev, 0)) - die (_("Could not write patch")); + die(_("Could not write patch")); - launch_editor(file, NULL, NULL); + if (launch_editor(file, NULL, NULL)) + die(_("editing patch failed")); if (stat(file, &st)) die_errno(_("Could not stat '%s'"), file); if (!st.st_size) die(_("Empty patch. Aborted.")); - memset(&child, 0, sizeof(child)); child.git_cmd = 1; child.argv = apply_argv; if (run_command(&child)) - die (_("Could not apply '%s'"), file); + die(_("Could not apply '%s'"), file); unlink(file); + free(file); return 0; } @@ -310,23 +233,41 @@ static struct lock_file lock_file; static const char ignore_error[] = N_("The following paths are ignored by one of your .gitignore files:\n"); -static int verbose = 0, show_only = 0, ignored_too = 0, refresh_only = 0; -static int ignore_add_errors, addremove, intent_to_add, ignore_missing = 0; +static int verbose, show_only, ignored_too, refresh_only; +static int ignore_add_errors, intent_to_add, ignore_missing; + +#define ADDREMOVE_DEFAULT 1 +static int addremove = ADDREMOVE_DEFAULT; +static int addremove_explicit = -1; /* unspecified */ + +static char *chmod_arg; + +static int ignore_removal_cb(const struct option *opt, const char *arg, int unset) +{ + /* if we are told to ignore, we are not adding removals */ + *(int *)opt->value = !unset ? 0 : 1; + return 0; +} static struct option builtin_add_options[] = { - OPT__DRY_RUN(&show_only, "dry run"), - OPT__VERBOSE(&verbose, "be verbose"), + OPT__DRY_RUN(&show_only, N_("dry run")), + OPT__VERBOSE(&verbose, N_("be verbose")), OPT_GROUP(""), - OPT_BOOLEAN('i', "interactive", &add_interactive, "interactive picking"), - OPT_BOOLEAN('p', "patch", &patch_interactive, "select hunks interactively"), - OPT_BOOLEAN('e', "edit", &edit_interactive, "edit current diff and apply"), - OPT__FORCE(&ignored_too, "allow adding otherwise ignored files"), - OPT_BOOLEAN('u', "update", &take_worktree_changes, "update tracked files"), - OPT_BOOLEAN('N', "intent-to-add", &intent_to_add, "record only the fact that the path will be added later"), - OPT_BOOLEAN('A', "all", &addremove, "add changes from all tracked and untracked files"), - OPT_BOOLEAN( 0 , "refresh", &refresh_only, "don't add, only refresh the index"), - OPT_BOOLEAN( 0 , "ignore-errors", &ignore_add_errors, "just skip files which cannot be added because of errors"), - OPT_BOOLEAN( 0 , "ignore-missing", &ignore_missing, "check if - even missing - files are ignored in dry run"), + OPT_BOOL('i', "interactive", &add_interactive, N_("interactive picking")), + OPT_BOOL('p', "patch", &patch_interactive, N_("select hunks interactively")), + OPT_BOOL('e', "edit", &edit_interactive, N_("edit current diff and apply")), + OPT__FORCE(&ignored_too, N_("allow adding otherwise ignored files")), + OPT_BOOL('u', "update", &take_worktree_changes, N_("update tracked files")), + OPT_BOOL('N', "intent-to-add", &intent_to_add, N_("record only the fact that the path will be added later")), + OPT_BOOL('A', "all", &addremove_explicit, N_("add changes from all tracked and untracked files")), + { OPTION_CALLBACK, 0, "ignore-removal", &addremove_explicit, + NULL /* takes no arguments */, + N_("ignore paths removed in the working tree (same as --no-all)"), + PARSE_OPT_NOARG, ignore_removal_cb }, + OPT_BOOL( 0 , "refresh", &refresh_only, N_("don't add, only refresh the index")), + OPT_BOOL( 0 , "ignore-errors", &ignore_add_errors, N_("just skip files which cannot be added because of errors")), + OPT_BOOL( 0 , "ignore-missing", &ignore_missing, N_("check if - even missing - files are ignored in dry run")), + OPT_STRING( 0 , "chmod", &chmod_arg, N_("(+/-)x"), N_("override the executable bit of the listed files")), OPT_END(), }; @@ -340,7 +281,7 @@ static int add_config(const char *var, const char *value, void *cb) return git_default_config(var, value, cb); } -static int add_files(struct dir_struct *dir, int flags) +static int add_files(struct dir_struct *dir, int flags, int force_mode) { int i, exit_status = 0; @@ -349,11 +290,12 @@ static int add_files(struct dir_struct *dir, int flags) for (i = 0; i < dir->ignored_nr; i++) fprintf(stderr, "%s\n", dir->ignored[i]->name); fprintf(stderr, _("Use -f if you really want to add them.\n")); - die(_("no files added")); + exit_status = 1; } for (i = 0; i < dir->nr; i++) - if (add_file_to_cache(dir->entries[i]->name, flags)) { + if (add_file_to_index(&the_index, dir->entries[i]->name, + flags, force_mode)) { if (!ignore_add_errors) die(_("adding files failed")); exit_status = 1; @@ -364,10 +306,9 @@ static int add_files(struct dir_struct *dir, int flags) int cmd_add(int argc, const char **argv, const char *prefix) { int exit_status = 0; - int newfd; - const char **pathspec; + struct pathspec pathspec; struct dir_struct dir; - int flags; + int flags, force_mode; int add_new_files; int require_pathspec; char *seen = NULL; @@ -386,20 +327,34 @@ int cmd_add(int argc, const char **argv, const char *prefix) argc--; argv++; + if (0 <= addremove_explicit) + addremove = addremove_explicit; + else if (take_worktree_changes && ADDREMOVE_DEFAULT) + addremove = 0; /* "-u" was given but not "-A" */ + if (addremove && take_worktree_changes) die(_("-A and -u are mutually incompatible")); + + if (!take_worktree_changes && addremove_explicit < 0 && argc) + /* Turn "git add pathspec..." to "git add -A pathspec..." */ + addremove = 1; + if (!show_only && ignore_missing) die(_("Option --ignore-missing can only be used together with --dry-run")); - if ((addremove || take_worktree_changes) && !argc) { - static const char *here[2] = { ".", NULL }; - argc = 1; - argv = here; - } + + if (!chmod_arg) + force_mode = 0; + else if (!strcmp(chmod_arg, "-x")) + force_mode = 0666; + else if (!strcmp(chmod_arg, "+x")) + force_mode = 0777; + else + die(_("--chmod param '%s' must be either -x or +x"), chmod_arg); add_new_files = !take_worktree_changes && !refresh_only; - require_pathspec = !take_worktree_changes; + require_pathspec = !(take_worktree_changes || (0 < addremove_explicit)); - newfd = hold_locked_index(&lock_file, 1); + hold_locked_index(&lock_file, 1); flags = ((verbose ? ADD_CACHE_VERBOSE : 0) | (show_only ? ADD_CACHE_PRETEND : 0) | @@ -413,11 +368,19 @@ int cmd_add(int argc, const char **argv, const char *prefix) fprintf(stderr, _("Maybe you wanted to say 'git add .'?\n")); return 0; } - pathspec = validate_pathspec(argc, argv, prefix); if (read_cache() < 0) die(_("index file corrupt")); - treat_gitlinks(pathspec); + + /* + * Check the "pathspec '%s' did not match any files" block + * below before enabling new magic. + */ + parse_pathspec(&pathspec, 0, + PATHSPEC_PREFER_FULL | + PATHSPEC_SYMLINK_LEADING_PATH | + PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE, + prefix, argv); if (add_new_files) { int baselen; @@ -430,30 +393,47 @@ int cmd_add(int argc, const char **argv, const char *prefix) } /* This picks up the paths that are not tracked */ - baselen = fill_directory(&dir, pathspec); - if (pathspec) - seen = prune_directory(&dir, pathspec, baselen); + baselen = fill_directory(&dir, &pathspec); + if (pathspec.nr) + seen = prune_directory(&dir, &pathspec, baselen); } if (refresh_only) { - refresh(verbose, pathspec); + refresh(verbose, &pathspec); goto finish; } - if (pathspec) { + if (pathspec.nr) { int i; + if (!seen) - seen = find_used_pathspec(pathspec); - for (i = 0; pathspec[i]; i++) { - if (!seen[i] && pathspec[i][0] - && !file_exists(pathspec[i])) { + seen = find_pathspecs_matching_against_index(&pathspec); + + /* + * file_exists() assumes exact match + */ + GUARD_PATHSPEC(&pathspec, + PATHSPEC_FROMTOP | + PATHSPEC_LITERAL | + PATHSPEC_GLOB | + PATHSPEC_ICASE | + PATHSPEC_EXCLUDE); + + for (i = 0; i < pathspec.nr; i++) { + const char *path = pathspec.items[i].match; + if (pathspec.items[i].magic & PATHSPEC_EXCLUDE) + continue; + if (!seen[i] && path[0] && + ((pathspec.items[i].magic & + (PATHSPEC_GLOB | PATHSPEC_ICASE)) || + !file_exists(path))) { if (ignore_missing) { int dtype = DT_UNKNOWN; - if (excluded(&dir, pathspec[i], &dtype)) - dir_add_ignored(&dir, pathspec[i], strlen(pathspec[i])); + if (is_excluded(&dir, path, &dtype)) + dir_add_ignored(&dir, path, pathspec.items[i].len); } else die(_("pathspec '%s' did not match any files"), - pathspec[i]); + pathspec.items[i].original); } } free(seen); @@ -461,17 +441,16 @@ int cmd_add(int argc, const char **argv, const char *prefix) plug_bulk_checkin(); - exit_status |= add_files_to_cache(prefix, pathspec, flags); + exit_status |= add_files_to_cache(prefix, &pathspec, flags, force_mode); if (add_new_files) - exit_status |= add_files(&dir, flags); + exit_status |= add_files(&dir, flags, force_mode); unplug_bulk_checkin(); - finish: +finish: if (active_cache_changed) { - if (write_cache(newfd, active_cache, active_nr) || - commit_locked_index(&lock_file)) + if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK)) die(_("Unable to write new index file")); } diff --git a/builtin/am.c b/builtin/am.c new file mode 100644 index 0000000000..3dfe70b7a0 --- /dev/null +++ b/builtin/am.c @@ -0,0 +1,2428 @@ +/* + * Builtin "git am" + * + * Based on git-am.sh by Junio C Hamano. + */ +#include "cache.h" +#include "builtin.h" +#include "exec_cmd.h" +#include "parse-options.h" +#include "dir.h" +#include "run-command.h" +#include "quote.h" +#include "tempfile.h" +#include "lockfile.h" +#include "cache-tree.h" +#include "refs.h" +#include "commit.h" +#include "diff.h" +#include "diffcore.h" +#include "unpack-trees.h" +#include "branch.h" +#include "sequencer.h" +#include "revision.h" +#include "merge-recursive.h" +#include "revision.h" +#include "log-tree.h" +#include "notes-utils.h" +#include "rerere.h" +#include "prompt.h" +#include "mailinfo.h" + +/** + * Returns 1 if the file is empty or does not exist, 0 otherwise. + */ +static int is_empty_file(const char *filename) +{ + struct stat st; + + if (stat(filename, &st) < 0) { + if (errno == ENOENT) + return 1; + die_errno(_("could not stat %s"), filename); + } + + return !st.st_size; +} + +/** + * Returns the length of the first line of msg. + */ +static int linelen(const char *msg) +{ + return strchrnul(msg, '\n') - msg; +} + +/** + * Returns true if `str` consists of only whitespace, false otherwise. + */ +static int str_isspace(const char *str) +{ + for (; *str; str++) + if (!isspace(*str)) + return 0; + + return 1; +} + +enum patch_format { + PATCH_FORMAT_UNKNOWN = 0, + PATCH_FORMAT_MBOX, + PATCH_FORMAT_STGIT, + PATCH_FORMAT_STGIT_SERIES, + PATCH_FORMAT_HG +}; + +enum keep_type { + KEEP_FALSE = 0, + KEEP_TRUE, /* pass -k flag to git-mailinfo */ + KEEP_NON_PATCH /* pass -b flag to git-mailinfo */ +}; + +enum scissors_type { + SCISSORS_UNSET = -1, + SCISSORS_FALSE = 0, /* pass --no-scissors to git-mailinfo */ + SCISSORS_TRUE /* pass --scissors to git-mailinfo */ +}; + +enum signoff_type { + SIGNOFF_FALSE = 0, + SIGNOFF_TRUE = 1, + SIGNOFF_EXPLICIT /* --signoff was set on the command-line */ +}; + +struct am_state { + /* state directory path */ + char *dir; + + /* current and last patch numbers, 1-indexed */ + int cur; + int last; + + /* commit metadata and message */ + char *author_name; + char *author_email; + char *author_date; + char *msg; + size_t msg_len; + + /* when --rebasing, records the original commit the patch came from */ + unsigned char orig_commit[GIT_SHA1_RAWSZ]; + + /* number of digits in patch filename */ + int prec; + + /* various operating modes and command line options */ + int interactive; + int threeway; + int quiet; + int signoff; /* enum signoff_type */ + int utf8; + int keep; /* enum keep_type */ + int message_id; + int scissors; /* enum scissors_type */ + struct argv_array git_apply_opts; + const char *resolvemsg; + int committer_date_is_author_date; + int ignore_date; + int allow_rerere_autoupdate; + const char *sign_commit; + int rebasing; +}; + +/** + * Initializes am_state with the default values. The state directory is set to + * dir. + */ +static void am_state_init(struct am_state *state, const char *dir) +{ + int gpgsign; + + memset(state, 0, sizeof(*state)); + + assert(dir); + state->dir = xstrdup(dir); + + state->prec = 4; + + git_config_get_bool("am.threeway", &state->threeway); + + state->utf8 = 1; + + git_config_get_bool("am.messageid", &state->message_id); + + state->scissors = SCISSORS_UNSET; + + argv_array_init(&state->git_apply_opts); + + if (!git_config_get_bool("commit.gpgsign", &gpgsign)) + state->sign_commit = gpgsign ? "" : NULL; +} + +/** + * Releases memory allocated by an am_state. + */ +static void am_state_release(struct am_state *state) +{ + free(state->dir); + free(state->author_name); + free(state->author_email); + free(state->author_date); + free(state->msg); + argv_array_clear(&state->git_apply_opts); +} + +/** + * Returns path relative to the am_state directory. + */ +static inline const char *am_path(const struct am_state *state, const char *path) +{ + return mkpath("%s/%s", state->dir, path); +} + +/** + * For convenience to call write_file() + */ +static int write_state_text(const struct am_state *state, + const char *name, const char *string) +{ + return write_file(am_path(state, name), "%s", string); +} + +static int write_state_count(const struct am_state *state, + const char *name, int value) +{ + return write_file(am_path(state, name), "%d", value); +} + +static int write_state_bool(const struct am_state *state, + const char *name, int value) +{ + return write_state_text(state, name, value ? "t" : "f"); +} + +/** + * If state->quiet is false, calls fprintf(fp, fmt, ...), and appends a newline + * at the end. + */ +static void say(const struct am_state *state, FILE *fp, const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + if (!state->quiet) { + vfprintf(fp, fmt, ap); + putc('\n', fp); + } + va_end(ap); +} + +/** + * Returns 1 if there is an am session in progress, 0 otherwise. + */ +static int am_in_progress(const struct am_state *state) +{ + struct stat st; + + if (lstat(state->dir, &st) < 0 || !S_ISDIR(st.st_mode)) + return 0; + if (lstat(am_path(state, "last"), &st) || !S_ISREG(st.st_mode)) + return 0; + if (lstat(am_path(state, "next"), &st) || !S_ISREG(st.st_mode)) + return 0; + return 1; +} + +/** + * Reads the contents of `file` in the `state` directory into `sb`. Returns the + * number of bytes read on success, -1 if the file does not exist. If `trim` is + * set, trailing whitespace will be removed. + */ +static int read_state_file(struct strbuf *sb, const struct am_state *state, + const char *file, int trim) +{ + strbuf_reset(sb); + + if (strbuf_read_file(sb, am_path(state, file), 0) >= 0) { + if (trim) + strbuf_trim(sb); + + return sb->len; + } + + if (errno == ENOENT) + return -1; + + die_errno(_("could not read '%s'"), am_path(state, file)); +} + +/** + * Reads a KEY=VALUE shell variable assignment from `fp`, returning the VALUE + * as a newly-allocated string. VALUE must be a quoted string, and the KEY must + * match `key`. Returns NULL on failure. + * + * This is used by read_author_script() to read the GIT_AUTHOR_* variables from + * the author-script. + */ +static char *read_shell_var(FILE *fp, const char *key) +{ + struct strbuf sb = STRBUF_INIT; + const char *str; + + if (strbuf_getline_lf(&sb, fp)) + goto fail; + + if (!skip_prefix(sb.buf, key, &str)) + goto fail; + + if (!skip_prefix(str, "=", &str)) + goto fail; + + strbuf_remove(&sb, 0, str - sb.buf); + + str = sq_dequote(sb.buf); + if (!str) + goto fail; + + return strbuf_detach(&sb, NULL); + +fail: + strbuf_release(&sb); + return NULL; +} + +/** + * Reads and parses the state directory's "author-script" file, and sets + * state->author_name, state->author_email and state->author_date accordingly. + * Returns 0 on success, -1 if the file could not be parsed. + * + * The author script is of the format: + * + * GIT_AUTHOR_NAME='$author_name' + * GIT_AUTHOR_EMAIL='$author_email' + * GIT_AUTHOR_DATE='$author_date' + * + * where $author_name, $author_email and $author_date are quoted. We are strict + * with our parsing, as the file was meant to be eval'd in the old git-am.sh + * script, and thus if the file differs from what this function expects, it is + * better to bail out than to do something that the user does not expect. + */ +static int read_author_script(struct am_state *state) +{ + const char *filename = am_path(state, "author-script"); + FILE *fp; + + assert(!state->author_name); + assert(!state->author_email); + assert(!state->author_date); + + fp = fopen(filename, "r"); + if (!fp) { + if (errno == ENOENT) + return 0; + die_errno(_("could not open '%s' for reading"), filename); + } + + state->author_name = read_shell_var(fp, "GIT_AUTHOR_NAME"); + if (!state->author_name) { + fclose(fp); + return -1; + } + + state->author_email = read_shell_var(fp, "GIT_AUTHOR_EMAIL"); + if (!state->author_email) { + fclose(fp); + return -1; + } + + state->author_date = read_shell_var(fp, "GIT_AUTHOR_DATE"); + if (!state->author_date) { + fclose(fp); + return -1; + } + + if (fgetc(fp) != EOF) { + fclose(fp); + return -1; + } + + fclose(fp); + return 0; +} + +/** + * Saves state->author_name, state->author_email and state->author_date in the + * state directory's "author-script" file. + */ +static void write_author_script(const struct am_state *state) +{ + struct strbuf sb = STRBUF_INIT; + + strbuf_addstr(&sb, "GIT_AUTHOR_NAME="); + sq_quote_buf(&sb, state->author_name); + strbuf_addch(&sb, '\n'); + + strbuf_addstr(&sb, "GIT_AUTHOR_EMAIL="); + sq_quote_buf(&sb, state->author_email); + strbuf_addch(&sb, '\n'); + + strbuf_addstr(&sb, "GIT_AUTHOR_DATE="); + sq_quote_buf(&sb, state->author_date); + strbuf_addch(&sb, '\n'); + + write_state_text(state, "author-script", sb.buf); + + strbuf_release(&sb); +} + +/** + * Reads the commit message from the state directory's "final-commit" file, + * setting state->msg to its contents and state->msg_len to the length of its + * contents in bytes. + * + * Returns 0 on success, -1 if the file does not exist. + */ +static int read_commit_msg(struct am_state *state) +{ + struct strbuf sb = STRBUF_INIT; + + assert(!state->msg); + + if (read_state_file(&sb, state, "final-commit", 0) < 0) { + strbuf_release(&sb); + return -1; + } + + state->msg = strbuf_detach(&sb, &state->msg_len); + return 0; +} + +/** + * Saves state->msg in the state directory's "final-commit" file. + */ +static void write_commit_msg(const struct am_state *state) +{ + int fd; + const char *filename = am_path(state, "final-commit"); + + fd = xopen(filename, O_WRONLY | O_CREAT, 0666); + if (write_in_full(fd, state->msg, state->msg_len) < 0) + die_errno(_("could not write to %s"), filename); + close(fd); +} + +/** + * Loads state from disk. + */ +static void am_load(struct am_state *state) +{ + struct strbuf sb = STRBUF_INIT; + + if (read_state_file(&sb, state, "next", 1) < 0) + die("BUG: state file 'next' does not exist"); + state->cur = strtol(sb.buf, NULL, 10); + + if (read_state_file(&sb, state, "last", 1) < 0) + die("BUG: state file 'last' does not exist"); + state->last = strtol(sb.buf, NULL, 10); + + if (read_author_script(state) < 0) + die(_("could not parse author script")); + + read_commit_msg(state); + + if (read_state_file(&sb, state, "original-commit", 1) < 0) + hashclr(state->orig_commit); + else if (get_sha1_hex(sb.buf, state->orig_commit) < 0) + die(_("could not parse %s"), am_path(state, "original-commit")); + + read_state_file(&sb, state, "threeway", 1); + state->threeway = !strcmp(sb.buf, "t"); + + read_state_file(&sb, state, "quiet", 1); + state->quiet = !strcmp(sb.buf, "t"); + + read_state_file(&sb, state, "sign", 1); + state->signoff = !strcmp(sb.buf, "t"); + + read_state_file(&sb, state, "utf8", 1); + state->utf8 = !strcmp(sb.buf, "t"); + + read_state_file(&sb, state, "keep", 1); + if (!strcmp(sb.buf, "t")) + state->keep = KEEP_TRUE; + else if (!strcmp(sb.buf, "b")) + state->keep = KEEP_NON_PATCH; + else + state->keep = KEEP_FALSE; + + read_state_file(&sb, state, "messageid", 1); + state->message_id = !strcmp(sb.buf, "t"); + + read_state_file(&sb, state, "scissors", 1); + if (!strcmp(sb.buf, "t")) + state->scissors = SCISSORS_TRUE; + else if (!strcmp(sb.buf, "f")) + state->scissors = SCISSORS_FALSE; + else + state->scissors = SCISSORS_UNSET; + + read_state_file(&sb, state, "apply-opt", 1); + argv_array_clear(&state->git_apply_opts); + if (sq_dequote_to_argv_array(sb.buf, &state->git_apply_opts) < 0) + die(_("could not parse %s"), am_path(state, "apply-opt")); + + state->rebasing = !!file_exists(am_path(state, "rebasing")); + + strbuf_release(&sb); +} + +/** + * Removes the am_state directory, forcefully terminating the current am + * session. + */ +static void am_destroy(const struct am_state *state) +{ + struct strbuf sb = STRBUF_INIT; + + strbuf_addstr(&sb, state->dir); + remove_dir_recursively(&sb, 0); + strbuf_release(&sb); +} + +/** + * Runs applypatch-msg hook. Returns its exit code. + */ +static int run_applypatch_msg_hook(struct am_state *state) +{ + int ret; + + assert(state->msg); + ret = run_hook_le(NULL, "applypatch-msg", am_path(state, "final-commit"), NULL); + + if (!ret) { + free(state->msg); + state->msg = NULL; + if (read_commit_msg(state) < 0) + die(_("'%s' was deleted by the applypatch-msg hook"), + am_path(state, "final-commit")); + } + + return ret; +} + +/** + * Runs post-rewrite hook. Returns it exit code. + */ +static int run_post_rewrite_hook(const struct am_state *state) +{ + struct child_process cp = CHILD_PROCESS_INIT; + const char *hook = find_hook("post-rewrite"); + int ret; + + if (!hook) + return 0; + + argv_array_push(&cp.args, hook); + argv_array_push(&cp.args, "rebase"); + + cp.in = xopen(am_path(state, "rewritten"), O_RDONLY); + cp.stdout_to_stderr = 1; + + ret = run_command(&cp); + + close(cp.in); + return ret; +} + +/** + * Reads the state directory's "rewritten" file, and copies notes from the old + * commits listed in the file to their rewritten commits. + * + * Returns 0 on success, -1 on failure. + */ +static int copy_notes_for_rebase(const struct am_state *state) +{ + struct notes_rewrite_cfg *c; + struct strbuf sb = STRBUF_INIT; + const char *invalid_line = _("Malformed input line: '%s'."); + const char *msg = "Notes added by 'git rebase'"; + FILE *fp; + int ret = 0; + + assert(state->rebasing); + + c = init_copy_notes_for_rewrite("rebase"); + if (!c) + return 0; + + fp = xfopen(am_path(state, "rewritten"), "r"); + + while (!strbuf_getline_lf(&sb, fp)) { + unsigned char from_obj[GIT_SHA1_RAWSZ], to_obj[GIT_SHA1_RAWSZ]; + + if (sb.len != GIT_SHA1_HEXSZ * 2 + 1) { + ret = error(invalid_line, sb.buf); + goto finish; + } + + if (get_sha1_hex(sb.buf, from_obj)) { + ret = error(invalid_line, sb.buf); + goto finish; + } + + if (sb.buf[GIT_SHA1_HEXSZ] != ' ') { + ret = error(invalid_line, sb.buf); + goto finish; + } + + if (get_sha1_hex(sb.buf + GIT_SHA1_HEXSZ + 1, to_obj)) { + ret = error(invalid_line, sb.buf); + goto finish; + } + + if (copy_note_for_rewrite(c, from_obj, to_obj)) + ret = error(_("Failed to copy notes from '%s' to '%s'"), + sha1_to_hex(from_obj), sha1_to_hex(to_obj)); + } + +finish: + finish_copy_notes_for_rewrite(c, msg); + fclose(fp); + strbuf_release(&sb); + return ret; +} + +/** + * Determines if the file looks like a piece of RFC2822 mail by grabbing all + * non-indented lines and checking if they look like they begin with valid + * header field names. + * + * Returns 1 if the file looks like a piece of mail, 0 otherwise. + */ +static int is_mail(FILE *fp) +{ + const char *header_regex = "^[!-9;-~]+:"; + struct strbuf sb = STRBUF_INIT; + regex_t regex; + int ret = 1; + + if (fseek(fp, 0L, SEEK_SET)) + die_errno(_("fseek failed")); + + if (regcomp(®ex, header_regex, REG_NOSUB | REG_EXTENDED)) + die("invalid pattern: %s", header_regex); + + while (!strbuf_getline(&sb, fp)) { + if (!sb.len) + break; /* End of header */ + + /* Ignore indented folded lines */ + if (*sb.buf == '\t' || *sb.buf == ' ') + continue; + + /* It's a header if it matches header_regex */ + if (regexec(®ex, sb.buf, 0, NULL, 0)) { + ret = 0; + goto done; + } + } + +done: + regfree(®ex); + strbuf_release(&sb); + return ret; +} + +/** + * Attempts to detect the patch_format of the patches contained in `paths`, + * returning the PATCH_FORMAT_* enum value. Returns PATCH_FORMAT_UNKNOWN if + * detection fails. + */ +static int detect_patch_format(const char **paths) +{ + enum patch_format ret = PATCH_FORMAT_UNKNOWN; + struct strbuf l1 = STRBUF_INIT; + struct strbuf l2 = STRBUF_INIT; + struct strbuf l3 = STRBUF_INIT; + FILE *fp; + + /* + * We default to mbox format if input is from stdin and for directories + */ + if (!*paths || !strcmp(*paths, "-") || is_directory(*paths)) + return PATCH_FORMAT_MBOX; + + /* + * Otherwise, check the first few lines of the first patch, starting + * from the first non-blank line, to try to detect its format. + */ + + fp = xfopen(*paths, "r"); + + while (!strbuf_getline(&l1, fp)) { + if (l1.len) + break; + } + + if (starts_with(l1.buf, "From ") || starts_with(l1.buf, "From: ")) { + ret = PATCH_FORMAT_MBOX; + goto done; + } + + if (starts_with(l1.buf, "# This series applies on GIT commit")) { + ret = PATCH_FORMAT_STGIT_SERIES; + goto done; + } + + if (!strcmp(l1.buf, "# HG changeset patch")) { + ret = PATCH_FORMAT_HG; + goto done; + } + + strbuf_reset(&l2); + strbuf_getline(&l2, fp); + strbuf_reset(&l3); + strbuf_getline(&l3, fp); + + /* + * If the second line is empty and the third is a From, Author or Date + * entry, this is likely an StGit patch. + */ + if (l1.len && !l2.len && + (starts_with(l3.buf, "From:") || + starts_with(l3.buf, "Author:") || + starts_with(l3.buf, "Date:"))) { + ret = PATCH_FORMAT_STGIT; + goto done; + } + + if (l1.len && is_mail(fp)) { + ret = PATCH_FORMAT_MBOX; + goto done; + } + +done: + fclose(fp); + strbuf_release(&l1); + return ret; +} + +/** + * Splits out individual email patches from `paths`, where each path is either + * a mbox file or a Maildir. Returns 0 on success, -1 on failure. + */ +static int split_mail_mbox(struct am_state *state, const char **paths, int keep_cr) +{ + struct child_process cp = CHILD_PROCESS_INIT; + struct strbuf last = STRBUF_INIT; + + cp.git_cmd = 1; + argv_array_push(&cp.args, "mailsplit"); + argv_array_pushf(&cp.args, "-d%d", state->prec); + argv_array_pushf(&cp.args, "-o%s", state->dir); + argv_array_push(&cp.args, "-b"); + if (keep_cr) + argv_array_push(&cp.args, "--keep-cr"); + argv_array_push(&cp.args, "--"); + argv_array_pushv(&cp.args, paths); + + if (capture_command(&cp, &last, 8)) + return -1; + + state->cur = 1; + state->last = strtol(last.buf, NULL, 10); + + return 0; +} + +/** + * Callback signature for split_mail_conv(). The foreign patch should be + * read from `in`, and the converted patch (in RFC2822 mail format) should be + * written to `out`. Return 0 on success, or -1 on failure. + */ +typedef int (*mail_conv_fn)(FILE *out, FILE *in, int keep_cr); + +/** + * Calls `fn` for each file in `paths` to convert the foreign patch to the + * RFC2822 mail format suitable for parsing with git-mailinfo. + * + * Returns 0 on success, -1 on failure. + */ +static int split_mail_conv(mail_conv_fn fn, struct am_state *state, + const char **paths, int keep_cr) +{ + static const char *stdin_only[] = {"-", NULL}; + int i; + + if (!*paths) + paths = stdin_only; + + for (i = 0; *paths; paths++, i++) { + FILE *in, *out; + const char *mail; + int ret; + + if (!strcmp(*paths, "-")) + in = stdin; + else + in = fopen(*paths, "r"); + + if (!in) + return error_errno(_("could not open '%s' for reading"), + *paths); + + mail = mkpath("%s/%0*d", state->dir, state->prec, i + 1); + + out = fopen(mail, "w"); + if (!out) + return error_errno(_("could not open '%s' for writing"), + mail); + + ret = fn(out, in, keep_cr); + + fclose(out); + fclose(in); + + if (ret) + return error(_("could not parse patch '%s'"), *paths); + } + + state->cur = 1; + state->last = i; + return 0; +} + +/** + * A split_mail_conv() callback that converts an StGit patch to an RFC2822 + * message suitable for parsing with git-mailinfo. + */ +static int stgit_patch_to_mail(FILE *out, FILE *in, int keep_cr) +{ + struct strbuf sb = STRBUF_INIT; + int subject_printed = 0; + + while (!strbuf_getline_lf(&sb, in)) { + const char *str; + + if (str_isspace(sb.buf)) + continue; + else if (skip_prefix(sb.buf, "Author:", &str)) + fprintf(out, "From:%s\n", str); + else if (starts_with(sb.buf, "From") || starts_with(sb.buf, "Date")) + fprintf(out, "%s\n", sb.buf); + else if (!subject_printed) { + fprintf(out, "Subject: %s\n", sb.buf); + subject_printed = 1; + } else { + fprintf(out, "\n%s\n", sb.buf); + break; + } + } + + strbuf_reset(&sb); + while (strbuf_fread(&sb, 8192, in) > 0) { + fwrite(sb.buf, 1, sb.len, out); + strbuf_reset(&sb); + } + + strbuf_release(&sb); + return 0; +} + +/** + * This function only supports a single StGit series file in `paths`. + * + * Given an StGit series file, converts the StGit patches in the series into + * RFC2822 messages suitable for parsing with git-mailinfo, and queues them in + * the state directory. + * + * Returns 0 on success, -1 on failure. + */ +static int split_mail_stgit_series(struct am_state *state, const char **paths, + int keep_cr) +{ + const char *series_dir; + char *series_dir_buf; + FILE *fp; + struct argv_array patches = ARGV_ARRAY_INIT; + struct strbuf sb = STRBUF_INIT; + int ret; + + if (!paths[0] || paths[1]) + return error(_("Only one StGIT patch series can be applied at once")); + + series_dir_buf = xstrdup(*paths); + series_dir = dirname(series_dir_buf); + + fp = fopen(*paths, "r"); + if (!fp) + return error_errno(_("could not open '%s' for reading"), *paths); + + while (!strbuf_getline_lf(&sb, fp)) { + if (*sb.buf == '#') + continue; /* skip comment lines */ + + argv_array_push(&patches, mkpath("%s/%s", series_dir, sb.buf)); + } + + fclose(fp); + strbuf_release(&sb); + free(series_dir_buf); + + ret = split_mail_conv(stgit_patch_to_mail, state, patches.argv, keep_cr); + + argv_array_clear(&patches); + return ret; +} + +/** + * A split_patches_conv() callback that converts a mercurial patch to a RFC2822 + * message suitable for parsing with git-mailinfo. + */ +static int hg_patch_to_mail(FILE *out, FILE *in, int keep_cr) +{ + struct strbuf sb = STRBUF_INIT; + + while (!strbuf_getline_lf(&sb, in)) { + const char *str; + + if (skip_prefix(sb.buf, "# User ", &str)) + fprintf(out, "From: %s\n", str); + else if (skip_prefix(sb.buf, "# Date ", &str)) { + unsigned long timestamp; + long tz, tz2; + char *end; + + errno = 0; + timestamp = strtoul(str, &end, 10); + if (errno) + return error(_("invalid timestamp")); + + if (!skip_prefix(end, " ", &str)) + return error(_("invalid Date line")); + + errno = 0; + tz = strtol(str, &end, 10); + if (errno) + return error(_("invalid timezone offset")); + + if (*end) + return error(_("invalid Date line")); + + /* + * mercurial's timezone is in seconds west of UTC, + * however git's timezone is in hours + minutes east of + * UTC. Convert it. + */ + tz2 = labs(tz) / 3600 * 100 + labs(tz) % 3600 / 60; + if (tz > 0) + tz2 = -tz2; + + fprintf(out, "Date: %s\n", show_date(timestamp, tz2, DATE_MODE(RFC2822))); + } else if (starts_with(sb.buf, "# ")) { + continue; + } else { + fprintf(out, "\n%s\n", sb.buf); + break; + } + } + + strbuf_reset(&sb); + while (strbuf_fread(&sb, 8192, in) > 0) { + fwrite(sb.buf, 1, sb.len, out); + strbuf_reset(&sb); + } + + strbuf_release(&sb); + return 0; +} + +/** + * Splits a list of files/directories into individual email patches. Each path + * in `paths` must be a file/directory that is formatted according to + * `patch_format`. + * + * Once split out, the individual email patches will be stored in the state + * directory, with each patch's filename being its index, padded to state->prec + * digits. + * + * state->cur will be set to the index of the first mail, and state->last will + * be set to the index of the last mail. + * + * Set keep_cr to 0 to convert all lines ending with \r\n to end with \n, 1 + * to disable this behavior, -1 to use the default configured setting. + * + * Returns 0 on success, -1 on failure. + */ +static int split_mail(struct am_state *state, enum patch_format patch_format, + const char **paths, int keep_cr) +{ + if (keep_cr < 0) { + keep_cr = 0; + git_config_get_bool("am.keepcr", &keep_cr); + } + + switch (patch_format) { + case PATCH_FORMAT_MBOX: + return split_mail_mbox(state, paths, keep_cr); + case PATCH_FORMAT_STGIT: + return split_mail_conv(stgit_patch_to_mail, state, paths, keep_cr); + case PATCH_FORMAT_STGIT_SERIES: + return split_mail_stgit_series(state, paths, keep_cr); + case PATCH_FORMAT_HG: + return split_mail_conv(hg_patch_to_mail, state, paths, keep_cr); + default: + die("BUG: invalid patch_format"); + } + return -1; +} + +/** + * Setup a new am session for applying patches + */ +static void am_setup(struct am_state *state, enum patch_format patch_format, + const char **paths, int keep_cr) +{ + unsigned char curr_head[GIT_SHA1_RAWSZ]; + const char *str; + struct strbuf sb = STRBUF_INIT; + + if (!patch_format) + patch_format = detect_patch_format(paths); + + if (!patch_format) { + fprintf_ln(stderr, _("Patch format detection failed.")); + exit(128); + } + + if (mkdir(state->dir, 0777) < 0 && errno != EEXIST) + die_errno(_("failed to create directory '%s'"), state->dir); + + if (split_mail(state, patch_format, paths, keep_cr) < 0) { + am_destroy(state); + die(_("Failed to split patches.")); + } + + if (state->rebasing) + state->threeway = 1; + + write_state_bool(state, "threeway", state->threeway); + write_state_bool(state, "quiet", state->quiet); + write_state_bool(state, "sign", state->signoff); + write_state_bool(state, "utf8", state->utf8); + + switch (state->keep) { + case KEEP_FALSE: + str = "f"; + break; + case KEEP_TRUE: + str = "t"; + break; + case KEEP_NON_PATCH: + str = "b"; + break; + default: + die("BUG: invalid value for state->keep"); + } + + write_state_text(state, "keep", str); + write_state_bool(state, "messageid", state->message_id); + + switch (state->scissors) { + case SCISSORS_UNSET: + str = ""; + break; + case SCISSORS_FALSE: + str = "f"; + break; + case SCISSORS_TRUE: + str = "t"; + break; + default: + die("BUG: invalid value for state->scissors"); + } + write_state_text(state, "scissors", str); + + sq_quote_argv(&sb, state->git_apply_opts.argv, 0); + write_state_text(state, "apply-opt", sb.buf); + + if (state->rebasing) + write_state_text(state, "rebasing", ""); + else + write_state_text(state, "applying", ""); + + if (!get_sha1("HEAD", curr_head)) { + write_state_text(state, "abort-safety", sha1_to_hex(curr_head)); + if (!state->rebasing) + update_ref("am", "ORIG_HEAD", curr_head, NULL, 0, + UPDATE_REFS_DIE_ON_ERR); + } else { + write_state_text(state, "abort-safety", ""); + if (!state->rebasing) + delete_ref("ORIG_HEAD", NULL, 0); + } + + /* + * NOTE: Since the "next" and "last" files determine if an am_state + * session is in progress, they should be written last. + */ + + write_state_count(state, "next", state->cur); + write_state_count(state, "last", state->last); + + strbuf_release(&sb); +} + +/** + * Increments the patch pointer, and cleans am_state for the application of the + * next patch. + */ +static void am_next(struct am_state *state) +{ + unsigned char head[GIT_SHA1_RAWSZ]; + + free(state->author_name); + state->author_name = NULL; + + free(state->author_email); + state->author_email = NULL; + + free(state->author_date); + state->author_date = NULL; + + free(state->msg); + state->msg = NULL; + state->msg_len = 0; + + unlink(am_path(state, "author-script")); + unlink(am_path(state, "final-commit")); + + hashclr(state->orig_commit); + unlink(am_path(state, "original-commit")); + + if (!get_sha1("HEAD", head)) + write_state_text(state, "abort-safety", sha1_to_hex(head)); + else + write_state_text(state, "abort-safety", ""); + + state->cur++; + write_state_count(state, "next", state->cur); +} + +/** + * Returns the filename of the current patch email. + */ +static const char *msgnum(const struct am_state *state) +{ + static struct strbuf sb = STRBUF_INIT; + + strbuf_reset(&sb); + strbuf_addf(&sb, "%0*d", state->prec, state->cur); + + return sb.buf; +} + +/** + * Refresh and write index. + */ +static void refresh_and_write_cache(void) +{ + struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file)); + + hold_locked_index(lock_file, 1); + refresh_cache(REFRESH_QUIET); + if (write_locked_index(&the_index, lock_file, COMMIT_LOCK)) + die(_("unable to write index file")); +} + +/** + * Returns 1 if the index differs from HEAD, 0 otherwise. When on an unborn + * branch, returns 1 if there are entries in the index, 0 otherwise. If an + * strbuf is provided, the space-separated list of files that differ will be + * appended to it. + */ +static int index_has_changes(struct strbuf *sb) +{ + unsigned char head[GIT_SHA1_RAWSZ]; + int i; + + if (!get_sha1_tree("HEAD", head)) { + struct diff_options opt; + + diff_setup(&opt); + DIFF_OPT_SET(&opt, EXIT_WITH_STATUS); + if (!sb) + DIFF_OPT_SET(&opt, QUICK); + do_diff_cache(head, &opt); + diffcore_std(&opt); + for (i = 0; sb && i < diff_queued_diff.nr; i++) { + if (i) + strbuf_addch(sb, ' '); + strbuf_addstr(sb, diff_queued_diff.queue[i]->two->path); + } + diff_flush(&opt); + return DIFF_OPT_TST(&opt, HAS_CHANGES) != 0; + } else { + for (i = 0; sb && i < active_nr; i++) { + if (i) + strbuf_addch(sb, ' '); + strbuf_addstr(sb, active_cache[i]->name); + } + return !!active_nr; + } +} + +/** + * Dies with a user-friendly message on how to proceed after resolving the + * problem. This message can be overridden with state->resolvemsg. + */ +static void NORETURN die_user_resolve(const struct am_state *state) +{ + if (state->resolvemsg) { + printf_ln("%s", state->resolvemsg); + } else { + const char *cmdline = state->interactive ? "git am -i" : "git am"; + + printf_ln(_("When you have resolved this problem, run \"%s --continue\"."), cmdline); + printf_ln(_("If you prefer to skip this patch, run \"%s --skip\" instead."), cmdline); + printf_ln(_("To restore the original branch and stop patching, run \"%s --abort\"."), cmdline); + } + + exit(128); +} + +static void am_signoff(struct strbuf *sb) +{ + char *cp; + struct strbuf mine = STRBUF_INIT; + + /* Does it end with our own sign-off? */ + strbuf_addf(&mine, "\n%s%s\n", + sign_off_header, + fmt_name(getenv("GIT_COMMITTER_NAME"), + getenv("GIT_COMMITTER_EMAIL"))); + if (mine.len < sb->len && + !strcmp(mine.buf, sb->buf + sb->len - mine.len)) + goto exit; /* no need to duplicate */ + + /* Does it have any Signed-off-by: in the text */ + for (cp = sb->buf; + cp && *cp && (cp = strstr(cp, sign_off_header)) != NULL; + cp = strchr(cp, '\n')) { + if (sb->buf == cp || cp[-1] == '\n') + break; + } + + strbuf_addstr(sb, mine.buf + !!cp); +exit: + strbuf_release(&mine); +} + +/** + * Appends signoff to the "msg" field of the am_state. + */ +static void am_append_signoff(struct am_state *state) +{ + struct strbuf sb = STRBUF_INIT; + + strbuf_attach(&sb, state->msg, state->msg_len, state->msg_len); + am_signoff(&sb); + state->msg = strbuf_detach(&sb, &state->msg_len); +} + +/** + * Parses `mail` using git-mailinfo, extracting its patch and authorship info. + * state->msg will be set to the patch message. state->author_name, + * state->author_email and state->author_date will be set to the patch author's + * name, email and date respectively. The patch body will be written to the + * state directory's "patch" file. + * + * Returns 1 if the patch should be skipped, 0 otherwise. + */ +static int parse_mail(struct am_state *state, const char *mail) +{ + FILE *fp; + struct strbuf sb = STRBUF_INIT; + struct strbuf msg = STRBUF_INIT; + struct strbuf author_name = STRBUF_INIT; + struct strbuf author_date = STRBUF_INIT; + struct strbuf author_email = STRBUF_INIT; + int ret = 0; + struct mailinfo mi; + + setup_mailinfo(&mi); + + if (state->utf8) + mi.metainfo_charset = get_commit_output_encoding(); + else + mi.metainfo_charset = NULL; + + switch (state->keep) { + case KEEP_FALSE: + break; + case KEEP_TRUE: + mi.keep_subject = 1; + break; + case KEEP_NON_PATCH: + mi.keep_non_patch_brackets_in_subject = 1; + break; + default: + die("BUG: invalid value for state->keep"); + } + + if (state->message_id) + mi.add_message_id = 1; + + switch (state->scissors) { + case SCISSORS_UNSET: + break; + case SCISSORS_FALSE: + mi.use_scissors = 0; + break; + case SCISSORS_TRUE: + mi.use_scissors = 1; + break; + default: + die("BUG: invalid value for state->scissors"); + } + + mi.input = fopen(mail, "r"); + if (!mi.input) + die("could not open input"); + mi.output = fopen(am_path(state, "info"), "w"); + if (!mi.output) + die("could not open output 'info'"); + if (mailinfo(&mi, am_path(state, "msg"), am_path(state, "patch"))) + die("could not parse patch"); + + fclose(mi.input); + fclose(mi.output); + + /* Extract message and author information */ + fp = xfopen(am_path(state, "info"), "r"); + while (!strbuf_getline_lf(&sb, fp)) { + const char *x; + + if (skip_prefix(sb.buf, "Subject: ", &x)) { + if (msg.len) + strbuf_addch(&msg, '\n'); + strbuf_addstr(&msg, x); + } else if (skip_prefix(sb.buf, "Author: ", &x)) + strbuf_addstr(&author_name, x); + else if (skip_prefix(sb.buf, "Email: ", &x)) + strbuf_addstr(&author_email, x); + else if (skip_prefix(sb.buf, "Date: ", &x)) + strbuf_addstr(&author_date, x); + } + fclose(fp); + + /* Skip pine's internal folder data */ + if (!strcmp(author_name.buf, "Mail System Internal Data")) { + ret = 1; + goto finish; + } + + if (is_empty_file(am_path(state, "patch"))) { + printf_ln(_("Patch is empty. Was it split wrong?")); + die_user_resolve(state); + } + + strbuf_addstr(&msg, "\n\n"); + strbuf_addbuf(&msg, &mi.log_message); + strbuf_stripspace(&msg, 0); + + if (state->signoff) + am_signoff(&msg); + + assert(!state->author_name); + state->author_name = strbuf_detach(&author_name, NULL); + + assert(!state->author_email); + state->author_email = strbuf_detach(&author_email, NULL); + + assert(!state->author_date); + state->author_date = strbuf_detach(&author_date, NULL); + + assert(!state->msg); + state->msg = strbuf_detach(&msg, &state->msg_len); + +finish: + strbuf_release(&msg); + strbuf_release(&author_date); + strbuf_release(&author_email); + strbuf_release(&author_name); + strbuf_release(&sb); + clear_mailinfo(&mi); + return ret; +} + +/** + * Sets commit_id to the commit hash where the mail was generated from. + * Returns 0 on success, -1 on failure. + */ +static int get_mail_commit_sha1(unsigned char *commit_id, const char *mail) +{ + struct strbuf sb = STRBUF_INIT; + FILE *fp = xfopen(mail, "r"); + const char *x; + + if (strbuf_getline_lf(&sb, fp)) + return -1; + + if (!skip_prefix(sb.buf, "From ", &x)) + return -1; + + if (get_sha1_hex(x, commit_id) < 0) + return -1; + + strbuf_release(&sb); + fclose(fp); + return 0; +} + +/** + * Sets state->msg, state->author_name, state->author_email, state->author_date + * to the commit's respective info. + */ +static void get_commit_info(struct am_state *state, struct commit *commit) +{ + const char *buffer, *ident_line, *author_date, *msg; + size_t ident_len; + struct ident_split ident_split; + struct strbuf sb = STRBUF_INIT; + + buffer = logmsg_reencode(commit, NULL, get_commit_output_encoding()); + + ident_line = find_commit_header(buffer, "author", &ident_len); + + if (split_ident_line(&ident_split, ident_line, ident_len) < 0) { + strbuf_add(&sb, ident_line, ident_len); + die(_("invalid ident line: %s"), sb.buf); + } + + assert(!state->author_name); + if (ident_split.name_begin) { + strbuf_add(&sb, ident_split.name_begin, + ident_split.name_end - ident_split.name_begin); + state->author_name = strbuf_detach(&sb, NULL); + } else + state->author_name = xstrdup(""); + + assert(!state->author_email); + if (ident_split.mail_begin) { + strbuf_add(&sb, ident_split.mail_begin, + ident_split.mail_end - ident_split.mail_begin); + state->author_email = strbuf_detach(&sb, NULL); + } else + state->author_email = xstrdup(""); + + author_date = show_ident_date(&ident_split, DATE_MODE(NORMAL)); + strbuf_addstr(&sb, author_date); + assert(!state->author_date); + state->author_date = strbuf_detach(&sb, NULL); + + assert(!state->msg); + msg = strstr(buffer, "\n\n"); + if (!msg) + die(_("unable to parse commit %s"), oid_to_hex(&commit->object.oid)); + state->msg = xstrdup(msg + 2); + state->msg_len = strlen(state->msg); +} + +/** + * Writes `commit` as a patch to the state directory's "patch" file. + */ +static void write_commit_patch(const struct am_state *state, struct commit *commit) +{ + struct rev_info rev_info; + FILE *fp; + + fp = xfopen(am_path(state, "patch"), "w"); + init_revisions(&rev_info, NULL); + rev_info.diff = 1; + rev_info.abbrev = 0; + rev_info.disable_stdin = 1; + rev_info.show_root_diff = 1; + rev_info.diffopt.output_format = DIFF_FORMAT_PATCH; + rev_info.no_commit_id = 1; + DIFF_OPT_SET(&rev_info.diffopt, BINARY); + DIFF_OPT_SET(&rev_info.diffopt, FULL_INDEX); + rev_info.diffopt.use_color = 0; + rev_info.diffopt.file = fp; + rev_info.diffopt.close_file = 1; + add_pending_object(&rev_info, &commit->object, ""); + diff_setup_done(&rev_info.diffopt); + log_tree_commit(&rev_info, commit); +} + +/** + * Writes the diff of the index against HEAD as a patch to the state + * directory's "patch" file. + */ +static void write_index_patch(const struct am_state *state) +{ + struct tree *tree; + unsigned char head[GIT_SHA1_RAWSZ]; + struct rev_info rev_info; + FILE *fp; + + if (!get_sha1_tree("HEAD", head)) + tree = lookup_tree(head); + else + tree = lookup_tree(EMPTY_TREE_SHA1_BIN); + + fp = xfopen(am_path(state, "patch"), "w"); + init_revisions(&rev_info, NULL); + rev_info.diff = 1; + rev_info.disable_stdin = 1; + rev_info.no_commit_id = 1; + rev_info.diffopt.output_format = DIFF_FORMAT_PATCH; + rev_info.diffopt.use_color = 0; + rev_info.diffopt.file = fp; + rev_info.diffopt.close_file = 1; + add_pending_object(&rev_info, &tree->object, ""); + diff_setup_done(&rev_info.diffopt); + run_diff_index(&rev_info, 1); +} + +/** + * Like parse_mail(), but parses the mail by looking up its commit ID + * directly. This is used in --rebasing mode to bypass git-mailinfo's munging + * of patches. + * + * state->orig_commit will be set to the original commit ID. + * + * Will always return 0 as the patch should never be skipped. + */ +static int parse_mail_rebase(struct am_state *state, const char *mail) +{ + struct commit *commit; + unsigned char commit_sha1[GIT_SHA1_RAWSZ]; + + if (get_mail_commit_sha1(commit_sha1, mail) < 0) + die(_("could not parse %s"), mail); + + commit = lookup_commit_or_die(commit_sha1, mail); + + get_commit_info(state, commit); + + write_commit_patch(state, commit); + + hashcpy(state->orig_commit, commit_sha1); + write_state_text(state, "original-commit", sha1_to_hex(commit_sha1)); + + return 0; +} + +/** + * Applies current patch with git-apply. Returns 0 on success, -1 otherwise. If + * `index_file` is not NULL, the patch will be applied to that index. + */ +static int run_apply(const struct am_state *state, const char *index_file) +{ + struct child_process cp = CHILD_PROCESS_INIT; + + cp.git_cmd = 1; + + if (index_file) + argv_array_pushf(&cp.env_array, "GIT_INDEX_FILE=%s", index_file); + + /* + * If we are allowed to fall back on 3-way merge, don't give false + * errors during the initial attempt. + */ + if (state->threeway && !index_file) { + cp.no_stdout = 1; + cp.no_stderr = 1; + } + + argv_array_push(&cp.args, "apply"); + + argv_array_pushv(&cp.args, state->git_apply_opts.argv); + + if (index_file) + argv_array_push(&cp.args, "--cached"); + else + argv_array_push(&cp.args, "--index"); + + argv_array_push(&cp.args, am_path(state, "patch")); + + if (run_command(&cp)) + return -1; + + /* Reload index as git-apply will have modified it. */ + discard_cache(); + read_cache_from(index_file ? index_file : get_index_file()); + + return 0; +} + +/** + * Builds an index that contains just the blobs needed for a 3way merge. + */ +static int build_fake_ancestor(const struct am_state *state, const char *index_file) +{ + struct child_process cp = CHILD_PROCESS_INIT; + + cp.git_cmd = 1; + argv_array_push(&cp.args, "apply"); + argv_array_pushv(&cp.args, state->git_apply_opts.argv); + argv_array_pushf(&cp.args, "--build-fake-ancestor=%s", index_file); + argv_array_push(&cp.args, am_path(state, "patch")); + + if (run_command(&cp)) + return -1; + + return 0; +} + +/** + * Do the three-way merge using fake ancestor, his tree constructed + * from the fake ancestor and the postimage of the patch, and our + * state. + */ +static int run_fallback_merge_recursive(const struct am_state *state, + unsigned char *orig_tree, + unsigned char *our_tree, + unsigned char *his_tree) +{ + struct child_process cp = CHILD_PROCESS_INIT; + int status; + + cp.git_cmd = 1; + + argv_array_pushf(&cp.env_array, "GITHEAD_%s=%.*s", + sha1_to_hex(his_tree), linelen(state->msg), state->msg); + if (state->quiet) + argv_array_push(&cp.env_array, "GIT_MERGE_VERBOSITY=0"); + + argv_array_push(&cp.args, "merge-recursive"); + argv_array_push(&cp.args, sha1_to_hex(orig_tree)); + argv_array_push(&cp.args, "--"); + argv_array_push(&cp.args, sha1_to_hex(our_tree)); + argv_array_push(&cp.args, sha1_to_hex(his_tree)); + + status = run_command(&cp) ? (-1) : 0; + discard_cache(); + read_cache(); + return status; +} + +/** + * Attempt a threeway merge, using index_path as the temporary index. + */ +static int fall_back_threeway(const struct am_state *state, const char *index_path) +{ + unsigned char orig_tree[GIT_SHA1_RAWSZ], his_tree[GIT_SHA1_RAWSZ], + our_tree[GIT_SHA1_RAWSZ]; + + if (get_sha1("HEAD", our_tree) < 0) + hashcpy(our_tree, EMPTY_TREE_SHA1_BIN); + + if (build_fake_ancestor(state, index_path)) + return error("could not build fake ancestor"); + + discard_cache(); + read_cache_from(index_path); + + if (write_index_as_tree(orig_tree, &the_index, index_path, 0, NULL)) + return error(_("Repository lacks necessary blobs to fall back on 3-way merge.")); + + say(state, stdout, _("Using index info to reconstruct a base tree...")); + + if (!state->quiet) { + /* + * List paths that needed 3-way fallback, so that the user can + * review them with extra care to spot mismerges. + */ + struct rev_info rev_info; + const char *diff_filter_str = "--diff-filter=AM"; + + init_revisions(&rev_info, NULL); + rev_info.diffopt.output_format = DIFF_FORMAT_NAME_STATUS; + diff_opt_parse(&rev_info.diffopt, &diff_filter_str, 1, rev_info.prefix); + add_pending_sha1(&rev_info, "HEAD", our_tree, 0); + diff_setup_done(&rev_info.diffopt); + run_diff_index(&rev_info, 1); + } + + if (run_apply(state, index_path)) + return error(_("Did you hand edit your patch?\n" + "It does not apply to blobs recorded in its index.")); + + if (write_index_as_tree(his_tree, &the_index, index_path, 0, NULL)) + return error("could not write tree"); + + say(state, stdout, _("Falling back to patching base and 3-way merge...")); + + discard_cache(); + read_cache(); + + /* + * This is not so wrong. Depending on which base we picked, orig_tree + * may be wildly different from ours, but his_tree has the same set of + * wildly different changes in parts the patch did not touch, so + * recursive ends up canceling them, saying that we reverted all those + * changes. + */ + + if (run_fallback_merge_recursive(state, orig_tree, our_tree, his_tree)) { + rerere(state->allow_rerere_autoupdate); + return error(_("Failed to merge in the changes.")); + } + + return 0; +} + +/** + * Commits the current index with state->msg as the commit message and + * state->author_name, state->author_email and state->author_date as the author + * information. + */ +static void do_commit(const struct am_state *state) +{ + unsigned char tree[GIT_SHA1_RAWSZ], parent[GIT_SHA1_RAWSZ], + commit[GIT_SHA1_RAWSZ]; + unsigned char *ptr; + struct commit_list *parents = NULL; + const char *reflog_msg, *author; + struct strbuf sb = STRBUF_INIT; + + if (run_hook_le(NULL, "pre-applypatch", NULL)) + exit(1); + + if (write_cache_as_tree(tree, 0, NULL)) + die(_("git write-tree failed to write a tree")); + + if (!get_sha1_commit("HEAD", parent)) { + ptr = parent; + commit_list_insert(lookup_commit(parent), &parents); + } else { + ptr = NULL; + say(state, stderr, _("applying to an empty history")); + } + + author = fmt_ident(state->author_name, state->author_email, + state->ignore_date ? NULL : state->author_date, + IDENT_STRICT); + + if (state->committer_date_is_author_date) + setenv("GIT_COMMITTER_DATE", + state->ignore_date ? "" : state->author_date, 1); + + if (commit_tree(state->msg, state->msg_len, tree, parents, commit, + author, state->sign_commit)) + die(_("failed to write commit object")); + + reflog_msg = getenv("GIT_REFLOG_ACTION"); + if (!reflog_msg) + reflog_msg = "am"; + + strbuf_addf(&sb, "%s: %.*s", reflog_msg, linelen(state->msg), + state->msg); + + update_ref(sb.buf, "HEAD", commit, ptr, 0, UPDATE_REFS_DIE_ON_ERR); + + if (state->rebasing) { + FILE *fp = xfopen(am_path(state, "rewritten"), "a"); + + assert(!is_null_sha1(state->orig_commit)); + fprintf(fp, "%s ", sha1_to_hex(state->orig_commit)); + fprintf(fp, "%s\n", sha1_to_hex(commit)); + fclose(fp); + } + + run_hook_le(NULL, "post-applypatch", NULL); + + strbuf_release(&sb); +} + +/** + * Validates the am_state for resuming -- the "msg" and authorship fields must + * be filled up. + */ +static void validate_resume_state(const struct am_state *state) +{ + if (!state->msg) + die(_("cannot resume: %s does not exist."), + am_path(state, "final-commit")); + + if (!state->author_name || !state->author_email || !state->author_date) + die(_("cannot resume: %s does not exist."), + am_path(state, "author-script")); +} + +/** + * Interactively prompt the user on whether the current patch should be + * applied. + * + * Returns 0 if the user chooses to apply the patch, 1 if the user chooses to + * skip it. + */ +static int do_interactive(struct am_state *state) +{ + assert(state->msg); + + if (!isatty(0)) + die(_("cannot be interactive without stdin connected to a terminal.")); + + for (;;) { + const char *reply; + + puts(_("Commit Body is:")); + puts("--------------------------"); + printf("%s", state->msg); + puts("--------------------------"); + + /* + * TRANSLATORS: Make sure to include [y], [n], [e], [v] and [a] + * in your translation. The program will only accept English + * input at this point. + */ + reply = git_prompt(_("Apply? [y]es/[n]o/[e]dit/[v]iew patch/[a]ccept all: "), PROMPT_ECHO); + + if (!reply) { + continue; + } else if (*reply == 'y' || *reply == 'Y') { + return 0; + } else if (*reply == 'a' || *reply == 'A') { + state->interactive = 0; + return 0; + } else if (*reply == 'n' || *reply == 'N') { + return 1; + } else if (*reply == 'e' || *reply == 'E') { + struct strbuf msg = STRBUF_INIT; + + if (!launch_editor(am_path(state, "final-commit"), &msg, NULL)) { + free(state->msg); + state->msg = strbuf_detach(&msg, &state->msg_len); + } + strbuf_release(&msg); + } else if (*reply == 'v' || *reply == 'V') { + const char *pager = git_pager(1); + struct child_process cp = CHILD_PROCESS_INIT; + + if (!pager) + pager = "cat"; + prepare_pager_args(&cp, pager); + argv_array_push(&cp.args, am_path(state, "patch")); + run_command(&cp); + } + } +} + +/** + * Applies all queued mail. + * + * If `resume` is true, we are "resuming". The "msg" and authorship fields, as + * well as the state directory's "patch" file is used as-is for applying the + * patch and committing it. + */ +static void am_run(struct am_state *state, int resume) +{ + const char *argv_gc_auto[] = {"gc", "--auto", NULL}; + struct strbuf sb = STRBUF_INIT; + + unlink(am_path(state, "dirtyindex")); + + refresh_and_write_cache(); + + if (index_has_changes(&sb)) { + write_state_bool(state, "dirtyindex", 1); + die(_("Dirty index: cannot apply patches (dirty: %s)"), sb.buf); + } + + strbuf_release(&sb); + + while (state->cur <= state->last) { + const char *mail = am_path(state, msgnum(state)); + int apply_status; + + if (!file_exists(mail)) + goto next; + + if (resume) { + validate_resume_state(state); + } else { + int skip; + + if (state->rebasing) + skip = parse_mail_rebase(state, mail); + else + skip = parse_mail(state, mail); + + if (skip) + goto next; /* mail should be skipped */ + + write_author_script(state); + write_commit_msg(state); + } + + if (state->interactive && do_interactive(state)) + goto next; + + if (run_applypatch_msg_hook(state)) + exit(1); + + say(state, stdout, _("Applying: %.*s"), linelen(state->msg), state->msg); + + apply_status = run_apply(state, NULL); + + if (apply_status && state->threeway) { + struct strbuf sb = STRBUF_INIT; + + strbuf_addstr(&sb, am_path(state, "patch-merge-index")); + apply_status = fall_back_threeway(state, sb.buf); + strbuf_release(&sb); + + /* + * Applying the patch to an earlier tree and merging + * the result may have produced the same tree as ours. + */ + if (!apply_status && !index_has_changes(NULL)) { + say(state, stdout, _("No changes -- Patch already applied.")); + goto next; + } + } + + if (apply_status) { + int advice_amworkdir = 1; + + printf_ln(_("Patch failed at %s %.*s"), msgnum(state), + linelen(state->msg), state->msg); + + git_config_get_bool("advice.amworkdir", &advice_amworkdir); + + if (advice_amworkdir) + printf_ln(_("The copy of the patch that failed is found in: %s"), + am_path(state, "patch")); + + die_user_resolve(state); + } + + do_commit(state); + +next: + am_next(state); + + if (resume) + am_load(state); + resume = 0; + } + + if (!is_empty_file(am_path(state, "rewritten"))) { + assert(state->rebasing); + copy_notes_for_rebase(state); + run_post_rewrite_hook(state); + } + + /* + * In rebasing mode, it's up to the caller to take care of + * housekeeping. + */ + if (!state->rebasing) { + am_destroy(state); + close_all_packs(); + run_command_v_opt(argv_gc_auto, RUN_GIT_CMD); + } +} + +/** + * Resume the current am session after patch application failure. The user did + * all the hard work, and we do not have to do any patch application. Just + * trust and commit what the user has in the index and working tree. + */ +static void am_resolve(struct am_state *state) +{ + validate_resume_state(state); + + say(state, stdout, _("Applying: %.*s"), linelen(state->msg), state->msg); + + if (!index_has_changes(NULL)) { + printf_ln(_("No changes - did you forget to use 'git add'?\n" + "If there is nothing left to stage, chances are that something else\n" + "already introduced the same changes; you might want to skip this patch.")); + die_user_resolve(state); + } + + if (unmerged_cache()) { + printf_ln(_("You still have unmerged paths in your index.\n" + "Did you forget to use 'git add'?")); + die_user_resolve(state); + } + + if (state->interactive) { + write_index_patch(state); + if (do_interactive(state)) + goto next; + } + + rerere(0); + + do_commit(state); + +next: + am_next(state); + am_load(state); + am_run(state, 0); +} + +/** + * Performs a checkout fast-forward from `head` to `remote`. If `reset` is + * true, any unmerged entries will be discarded. Returns 0 on success, -1 on + * failure. + */ +static int fast_forward_to(struct tree *head, struct tree *remote, int reset) +{ + struct lock_file *lock_file; + struct unpack_trees_options opts; + struct tree_desc t[2]; + + if (parse_tree(head) || parse_tree(remote)) + return -1; + + lock_file = xcalloc(1, sizeof(struct lock_file)); + hold_locked_index(lock_file, 1); + + refresh_cache(REFRESH_QUIET); + + memset(&opts, 0, sizeof(opts)); + opts.head_idx = 1; + opts.src_index = &the_index; + opts.dst_index = &the_index; + opts.update = 1; + opts.merge = 1; + opts.reset = reset; + opts.fn = twoway_merge; + init_tree_desc(&t[0], head->buffer, head->size); + init_tree_desc(&t[1], remote->buffer, remote->size); + + if (unpack_trees(2, t, &opts)) { + rollback_lock_file(lock_file); + return -1; + } + + if (write_locked_index(&the_index, lock_file, COMMIT_LOCK)) + die(_("unable to write new index file")); + + return 0; +} + +/** + * Merges a tree into the index. The index's stat info will take precedence + * over the merged tree's. Returns 0 on success, -1 on failure. + */ +static int merge_tree(struct tree *tree) +{ + struct lock_file *lock_file; + struct unpack_trees_options opts; + struct tree_desc t[1]; + + if (parse_tree(tree)) + return -1; + + lock_file = xcalloc(1, sizeof(struct lock_file)); + hold_locked_index(lock_file, 1); + + memset(&opts, 0, sizeof(opts)); + opts.head_idx = 1; + opts.src_index = &the_index; + opts.dst_index = &the_index; + opts.merge = 1; + opts.fn = oneway_merge; + init_tree_desc(&t[0], tree->buffer, tree->size); + + if (unpack_trees(1, t, &opts)) { + rollback_lock_file(lock_file); + return -1; + } + + if (write_locked_index(&the_index, lock_file, COMMIT_LOCK)) + die(_("unable to write new index file")); + + return 0; +} + +/** + * Clean the index without touching entries that are not modified between + * `head` and `remote`. + */ +static int clean_index(const unsigned char *head, const unsigned char *remote) +{ + struct tree *head_tree, *remote_tree, *index_tree; + unsigned char index[GIT_SHA1_RAWSZ]; + + head_tree = parse_tree_indirect(head); + if (!head_tree) + return error(_("Could not parse object '%s'."), sha1_to_hex(head)); + + remote_tree = parse_tree_indirect(remote); + if (!remote_tree) + return error(_("Could not parse object '%s'."), sha1_to_hex(remote)); + + read_cache_unmerged(); + + if (fast_forward_to(head_tree, head_tree, 1)) + return -1; + + if (write_cache_as_tree(index, 0, NULL)) + return -1; + + index_tree = parse_tree_indirect(index); + if (!index_tree) + return error(_("Could not parse object '%s'."), sha1_to_hex(index)); + + if (fast_forward_to(index_tree, remote_tree, 0)) + return -1; + + if (merge_tree(remote_tree)) + return -1; + + remove_branch_state(); + + return 0; +} + +/** + * Resets rerere's merge resolution metadata. + */ +static void am_rerere_clear(void) +{ + struct string_list merge_rr = STRING_LIST_INIT_DUP; + rerere_clear(&merge_rr); + string_list_clear(&merge_rr, 1); +} + +/** + * Resume the current am session by skipping the current patch. + */ +static void am_skip(struct am_state *state) +{ + unsigned char head[GIT_SHA1_RAWSZ]; + + am_rerere_clear(); + + if (get_sha1("HEAD", head)) + hashcpy(head, EMPTY_TREE_SHA1_BIN); + + if (clean_index(head, head)) + die(_("failed to clean index")); + + am_next(state); + am_load(state); + am_run(state, 0); +} + +/** + * Returns true if it is safe to reset HEAD to the ORIG_HEAD, false otherwise. + * + * It is not safe to reset HEAD when: + * 1. git-am previously failed because the index was dirty. + * 2. HEAD has moved since git-am previously failed. + */ +static int safe_to_abort(const struct am_state *state) +{ + struct strbuf sb = STRBUF_INIT; + unsigned char abort_safety[GIT_SHA1_RAWSZ], head[GIT_SHA1_RAWSZ]; + + if (file_exists(am_path(state, "dirtyindex"))) + return 0; + + if (read_state_file(&sb, state, "abort-safety", 1) > 0) { + if (get_sha1_hex(sb.buf, abort_safety)) + die(_("could not parse %s"), am_path(state, "abort_safety")); + } else + hashclr(abort_safety); + + if (get_sha1("HEAD", head)) + hashclr(head); + + if (!hashcmp(head, abort_safety)) + return 1; + + error(_("You seem to have moved HEAD since the last 'am' failure.\n" + "Not rewinding to ORIG_HEAD")); + + return 0; +} + +/** + * Aborts the current am session if it is safe to do so. + */ +static void am_abort(struct am_state *state) +{ + unsigned char curr_head[GIT_SHA1_RAWSZ], orig_head[GIT_SHA1_RAWSZ]; + int has_curr_head, has_orig_head; + char *curr_branch; + + if (!safe_to_abort(state)) { + am_destroy(state); + return; + } + + am_rerere_clear(); + + curr_branch = resolve_refdup("HEAD", 0, curr_head, NULL); + has_curr_head = !is_null_sha1(curr_head); + if (!has_curr_head) + hashcpy(curr_head, EMPTY_TREE_SHA1_BIN); + + has_orig_head = !get_sha1("ORIG_HEAD", orig_head); + if (!has_orig_head) + hashcpy(orig_head, EMPTY_TREE_SHA1_BIN); + + clean_index(curr_head, orig_head); + + if (has_orig_head) + update_ref("am --abort", "HEAD", orig_head, + has_curr_head ? curr_head : NULL, 0, + UPDATE_REFS_DIE_ON_ERR); + else if (curr_branch) + delete_ref(curr_branch, NULL, REF_NODEREF); + + free(curr_branch); + am_destroy(state); +} + +/** + * parse_options() callback that validates and sets opt->value to the + * PATCH_FORMAT_* enum value corresponding to `arg`. + */ +static int parse_opt_patchformat(const struct option *opt, const char *arg, int unset) +{ + int *opt_value = opt->value; + + if (!strcmp(arg, "mbox")) + *opt_value = PATCH_FORMAT_MBOX; + else if (!strcmp(arg, "stgit")) + *opt_value = PATCH_FORMAT_STGIT; + else if (!strcmp(arg, "stgit-series")) + *opt_value = PATCH_FORMAT_STGIT_SERIES; + else if (!strcmp(arg, "hg")) + *opt_value = PATCH_FORMAT_HG; + else + return error(_("Invalid value for --patch-format: %s"), arg); + return 0; +} + +enum resume_mode { + RESUME_FALSE = 0, + RESUME_APPLY, + RESUME_RESOLVED, + RESUME_SKIP, + RESUME_ABORT +}; + +static int git_am_config(const char *k, const char *v, void *cb) +{ + int status; + + status = git_gpg_config(k, v, NULL); + if (status) + return status; + + return git_default_config(k, v, NULL); +} + +int cmd_am(int argc, const char **argv, const char *prefix) +{ + struct am_state state; + int binary = -1; + int keep_cr = -1; + int patch_format = PATCH_FORMAT_UNKNOWN; + enum resume_mode resume = RESUME_FALSE; + int in_progress; + + const char * const usage[] = { + N_("git am [<options>] [(<mbox>|<Maildir>)...]"), + N_("git am [<options>] (--continue | --skip | --abort)"), + NULL + }; + + struct option options[] = { + OPT_BOOL('i', "interactive", &state.interactive, + N_("run interactively")), + OPT_HIDDEN_BOOL('b', "binary", &binary, + N_("historical option -- no-op")), + OPT_BOOL('3', "3way", &state.threeway, + N_("allow fall back on 3way merging if needed")), + OPT__QUIET(&state.quiet, N_("be quiet")), + OPT_SET_INT('s', "signoff", &state.signoff, + N_("add a Signed-off-by line to the commit message"), + SIGNOFF_EXPLICIT), + OPT_BOOL('u', "utf8", &state.utf8, + N_("recode into utf8 (default)")), + OPT_SET_INT('k', "keep", &state.keep, + N_("pass -k flag to git-mailinfo"), KEEP_TRUE), + OPT_SET_INT(0, "keep-non-patch", &state.keep, + N_("pass -b flag to git-mailinfo"), KEEP_NON_PATCH), + OPT_BOOL('m', "message-id", &state.message_id, + N_("pass -m flag to git-mailinfo")), + { OPTION_SET_INT, 0, "keep-cr", &keep_cr, NULL, + N_("pass --keep-cr flag to git-mailsplit for mbox format"), + PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, 1}, + { OPTION_SET_INT, 0, "no-keep-cr", &keep_cr, NULL, + N_("do not pass --keep-cr flag to git-mailsplit independent of am.keepcr"), + PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, 0}, + OPT_BOOL('c', "scissors", &state.scissors, + N_("strip everything before a scissors line")), + OPT_PASSTHRU_ARGV(0, "whitespace", &state.git_apply_opts, N_("action"), + N_("pass it through git-apply"), + 0), + OPT_PASSTHRU_ARGV(0, "ignore-space-change", &state.git_apply_opts, NULL, + N_("pass it through git-apply"), + PARSE_OPT_NOARG), + OPT_PASSTHRU_ARGV(0, "ignore-whitespace", &state.git_apply_opts, NULL, + N_("pass it through git-apply"), + PARSE_OPT_NOARG), + OPT_PASSTHRU_ARGV(0, "directory", &state.git_apply_opts, N_("root"), + N_("pass it through git-apply"), + 0), + OPT_PASSTHRU_ARGV(0, "exclude", &state.git_apply_opts, N_("path"), + N_("pass it through git-apply"), + 0), + OPT_PASSTHRU_ARGV(0, "include", &state.git_apply_opts, N_("path"), + N_("pass it through git-apply"), + 0), + OPT_PASSTHRU_ARGV('C', NULL, &state.git_apply_opts, N_("n"), + N_("pass it through git-apply"), + 0), + OPT_PASSTHRU_ARGV('p', NULL, &state.git_apply_opts, N_("num"), + N_("pass it through git-apply"), + 0), + OPT_CALLBACK(0, "patch-format", &patch_format, N_("format"), + N_("format the patch(es) are in"), + parse_opt_patchformat), + OPT_PASSTHRU_ARGV(0, "reject", &state.git_apply_opts, NULL, + N_("pass it through git-apply"), + PARSE_OPT_NOARG), + OPT_STRING(0, "resolvemsg", &state.resolvemsg, NULL, + N_("override error message when patch failure occurs")), + OPT_CMDMODE(0, "continue", &resume, + N_("continue applying patches after resolving a conflict"), + RESUME_RESOLVED), + OPT_CMDMODE('r', "resolved", &resume, + N_("synonyms for --continue"), + RESUME_RESOLVED), + OPT_CMDMODE(0, "skip", &resume, + N_("skip the current patch"), + RESUME_SKIP), + OPT_CMDMODE(0, "abort", &resume, + N_("restore the original branch and abort the patching operation."), + RESUME_ABORT), + OPT_BOOL(0, "committer-date-is-author-date", + &state.committer_date_is_author_date, + N_("lie about committer date")), + OPT_BOOL(0, "ignore-date", &state.ignore_date, + N_("use current timestamp for author date")), + OPT_RERERE_AUTOUPDATE(&state.allow_rerere_autoupdate), + { OPTION_STRING, 'S', "gpg-sign", &state.sign_commit, N_("key-id"), + N_("GPG-sign commits"), + PARSE_OPT_OPTARG, NULL, (intptr_t) "" }, + OPT_HIDDEN_BOOL(0, "rebasing", &state.rebasing, + N_("(internal use for git-rebase)")), + OPT_END() + }; + + git_config(git_am_config, NULL); + + am_state_init(&state, git_path("rebase-apply")); + + in_progress = am_in_progress(&state); + if (in_progress) + am_load(&state); + + argc = parse_options(argc, argv, prefix, options, usage, 0); + + if (binary >= 0) + fprintf_ln(stderr, _("The -b/--binary option has been a no-op for long time, and\n" + "it will be removed. Please do not use it anymore.")); + + /* Ensure a valid committer ident can be constructed */ + git_committer_info(IDENT_STRICT); + + if (read_index_preload(&the_index, NULL) < 0) + die(_("failed to read the index")); + + if (in_progress) { + /* + * Catch user error to feed us patches when there is a session + * in progress: + * + * 1. mbox path(s) are provided on the command-line. + * 2. stdin is not a tty: the user is trying to feed us a patch + * from standard input. This is somewhat unreliable -- stdin + * could be /dev/null for example and the caller did not + * intend to feed us a patch but wanted to continue + * unattended. + */ + if (argc || (resume == RESUME_FALSE && !isatty(0))) + die(_("previous rebase directory %s still exists but mbox given."), + state.dir); + + if (resume == RESUME_FALSE) + resume = RESUME_APPLY; + + if (state.signoff == SIGNOFF_EXPLICIT) + am_append_signoff(&state); + } else { + struct argv_array paths = ARGV_ARRAY_INIT; + int i; + + /* + * Handle stray state directory in the independent-run case. In + * the --rebasing case, it is up to the caller to take care of + * stray directories. + */ + if (file_exists(state.dir) && !state.rebasing) { + if (resume == RESUME_ABORT) { + am_destroy(&state); + am_state_release(&state); + return 0; + } + + die(_("Stray %s directory found.\n" + "Use \"git am --abort\" to remove it."), + state.dir); + } + + if (resume) + die(_("Resolve operation not in progress, we are not resuming.")); + + for (i = 0; i < argc; i++) { + if (is_absolute_path(argv[i]) || !prefix) + argv_array_push(&paths, argv[i]); + else + argv_array_push(&paths, mkpath("%s/%s", prefix, argv[i])); + } + + am_setup(&state, patch_format, paths.argv, keep_cr); + + argv_array_clear(&paths); + } + + switch (resume) { + case RESUME_FALSE: + am_run(&state, 0); + break; + case RESUME_APPLY: + am_run(&state, 1); + break; + case RESUME_RESOLVED: + am_resolve(&state); + break; + case RESUME_SKIP: + am_skip(&state); + break; + case RESUME_ABORT: + am_abort(&state); + break; + default: + die("BUG: invalid resume value"); + } + + am_state_release(&state); + + return 0; +} diff --git a/builtin/annotate.c b/builtin/annotate.c index fc43eed36b..da413ae0d1 100644 --- a/builtin/annotate.c +++ b/builtin/annotate.c @@ -5,20 +5,18 @@ */ #include "git-compat-util.h" #include "builtin.h" +#include "argv-array.h" int cmd_annotate(int argc, const char **argv, const char *prefix) { - const char **nargv; + struct argv_array args = ARGV_ARRAY_INIT; int i; - nargv = xmalloc(sizeof(char *) * (argc + 2)); - nargv[0] = "annotate"; - nargv[1] = "-c"; + argv_array_pushl(&args, "annotate", "-c", NULL); for (i = 1; i < argc; i++) { - nargv[i+1] = argv[i]; + argv_array_push(&args, argv[i]); } - nargv[argc + 1] = NULL; - return cmd_blame(argc + 1, nargv, prefix); + return cmd_blame(args.argc, args.argv, prefix); } diff --git a/builtin/apply.c b/builtin/apply.c index c24dc546d0..c770d7d3d9 100644 --- a/builtin/apply.c +++ b/builtin/apply.c @@ -7,6 +7,7 @@ * */ #include "cache.h" +#include "lockfile.h" #include "cache-tree.h" #include "quote.h" #include "blob.h" @@ -14,7 +15,11 @@ #include "builtin.h" #include "string-list.h" #include "dir.h" +#include "diff.h" #include "parse-options.h" +#include "xdiff-interface.h" +#include "ll-merge.h" +#include "rerere.h" /* * --check turns on checking that the working tree matches the @@ -45,11 +50,13 @@ static int apply_with_reject; static int apply_verbosely; static int allow_overlap; static int no_add; +static int threeway; +static int unsafe_paths; static const char *fake_ancestor; static int line_termination = '\n'; static unsigned int p_context = UINT_MAX; static const char * const apply_usage[] = { - "git apply [options] [<patch>...]", + N_("git apply [<options>] [<patch>...]"), NULL }; @@ -70,8 +77,7 @@ static enum ws_ignore { static const char *patch_input_file; -static const char *root; -static int root_len; +static struct strbuf root = STRBUF_INIT; static int read_stdin = 1; static int options; @@ -102,7 +108,7 @@ static void parse_whitespace_option(const char *option) ws_error_action = correct_ws_error; return; } - die("unrecognized whitespace option '%s'", option); + die(_("unrecognized whitespace option '%s'"), option); } static void parse_ignorewhitespace_option(const char *option) @@ -117,7 +123,7 @@ static void parse_ignorewhitespace_option(const char *option) ws_ignore_action = ignore_ws_change; return; } - die("unrecognized whitespace ignore option '%s'", option); + die(_("unrecognized whitespace ignore option '%s'"), option); } static void set_default_whitespace_mode(const char *whitespace_option) @@ -151,9 +157,14 @@ struct fragment { unsigned long leading, trailing; unsigned long oldpos, oldlines; unsigned long newpos, newlines; + /* + * 'patch' is usually borrowed from buf in apply_patch(), + * but some codepaths store an allocated buffer. + */ const char *patch; + unsigned free_patch:1, + rejected:1; int size; - int rejected; int linenr; struct fragment *next; }; @@ -178,7 +189,6 @@ struct patch { int is_new, is_delete; /* -1 = unknown, 0 = false, 1 = true */ int rejected; unsigned ws_rule; - unsigned long deflate_origlen; int lines_added, lines_deleted; int score; unsigned int is_toplevel_relative:1; @@ -187,14 +197,49 @@ struct patch { unsigned int is_copy:1; unsigned int is_rename:1; unsigned int recount:1; + unsigned int conflicted_threeway:1; + unsigned int direct_to_threeway:1; struct fragment *fragments; char *result; size_t resultsize; char old_sha1_prefix[41]; char new_sha1_prefix[41]; struct patch *next; + + /* three-way fallback result */ + struct object_id threeway_stage[3]; }; +static void free_fragment_list(struct fragment *list) +{ + while (list) { + struct fragment *next = list->next; + if (list->free_patch) + free((char *)list->patch); + free(list); + list = next; + } +} + +static void free_patch(struct patch *patch) +{ + free_fragment_list(patch->fragments); + free(patch->def_name); + free(patch->old_name); + free(patch->new_name); + free(patch->result); + free(patch); +} + +static void free_patch_list(struct patch *list) +{ + while (list) { + struct patch *next = list->next; + free_patch(list); + list = next; + } +} + /* * A line in a file, len-bytes long (includes the terminating LF, * except for an incomplete line at the end if the file ends with @@ -256,11 +301,13 @@ static int fuzzy_matchlines(const char *s1, size_t n1, while ((*last2 == '\r') || (*last2 == '\n')) last2--; - /* skip leading whitespace */ - while (isspace(*s1) && (s1 <= last1)) - s1++; - while (isspace(*s2) && (s2 <= last2)) - s2++; + /* skip leading whitespaces, if both begin with whitespace */ + if (s1 <= last1 && s2 <= last2 && isspace(*s1) && isspace(*s2)) { + while (isspace(*s1) && (s1 <= last1)) + s1++; + while (isspace(*s2) && (s2 <= last2)) + s2++; + } /* early return if both lines are empty */ if ((s1 > last1) && (s2 > last2)) return 1; @@ -301,6 +348,11 @@ static void add_line_info(struct image *img, const char *bol, size_t len, unsign img->nr++; } +/* + * "buf" has the file contents to be patched (read from various sources). + * attach it to "image" and add line-based index to it. + * "image" now owns the "buf". + */ static void prepare_image(struct image *image, char *buf, size_t len, int prepare_linetable) { @@ -330,29 +382,31 @@ static void prepare_image(struct image *image, char *buf, size_t len, static void clear_image(struct image *image) { free(image->buf); - image->buf = NULL; - image->len = 0; + free(image->line_allocated); + memset(image, 0, sizeof(*image)); } -static void say_patch_name(FILE *output, const char *pre, - struct patch *patch, const char *post) +/* fmt must contain _one_ %s and no other substitution */ +static void say_patch_name(FILE *output, const char *fmt, struct patch *patch) { - fputs(pre, output); + struct strbuf sb = STRBUF_INIT; + if (patch->old_name && patch->new_name && strcmp(patch->old_name, patch->new_name)) { - quote_c_style(patch->old_name, NULL, output, 0); - fputs(" => ", output); - quote_c_style(patch->new_name, NULL, output, 0); + quote_c_style(patch->old_name, &sb, NULL, 0); + strbuf_addstr(&sb, " => "); + quote_c_style(patch->new_name, &sb, NULL, 0); } else { const char *n = patch->new_name; if (!n) n = patch->old_name; - quote_c_style(n, NULL, output, 0); + quote_c_style(n, &sb, NULL, 0); } - fputs(post, output); + fprintf(output, fmt, sb.buf); + fputc('\n', output); + strbuf_release(&sb); } -#define CHUNKSIZE (8192) #define SLOP (16) static void read_patch_file(struct strbuf *sb, int fd) @@ -382,13 +436,13 @@ static unsigned long linelen(const char *buffer, unsigned long size) static int is_dev_null(const char *str) { - return !memcmp("/dev/null", str, 9) && isspace(str[9]); + return skip_prefix(str, "/dev/null", &str) && isspace(*str); } #define TERM_SPACE 1 #define TERM_TAB 2 -static int name_terminate(const char *name, int namelen, int c, int terminate) +static int name_terminate(int c, int terminate) { if (c == ' ' && !(terminate & TERM_SPACE)) return 0; @@ -415,14 +469,14 @@ static char *squash_slash(char *name) return name; } -static char *find_name_gnu(const char *line, char *def, int p_value) +static char *find_name_gnu(const char *line, const char *def, int p_value) { struct strbuf name = STRBUF_INIT; char *cp; /* * Proposed "new-style" GNU patch/diff format; see - * http://marc.theaimsgroup.com/?l=git&m=112927316408690&w=2 + * http://marc.info/?l=git&m=112927316408690&w=2 */ if (unquote_c_style(&name, line, NULL)) { strbuf_release(&name); @@ -438,13 +492,9 @@ static char *find_name_gnu(const char *line, char *def, int p_value) cp++; } - /* name can later be freed, so we need - * to memmove, not just return cp - */ strbuf_remove(&name, 0, cp - name.buf); - free(def); - if (root) - strbuf_insert(&name, 0, root, root_len); + if (root.len) + strbuf_insert(&name, 0, root.buf, root.len); return squash_slash(strbuf_detach(&name, NULL)); } @@ -607,8 +657,8 @@ static size_t diff_timestamp_len(const char *line, size_t len) return line + len - end; } -static char *find_name_common(const char *line, char *def, int p_value, - const char *end, int terminate) +static char *find_name_common(const char *line, const char *def, + int p_value, const char *end, int terminate) { int len; const char *start = NULL; @@ -621,7 +671,7 @@ static char *find_name_common(const char *line, char *def, int p_value, if (!end && isspace(c)) { if (c == '\n') break; - if (name_terminate(start, line-start, c, terminate)) + if (name_terminate(c, terminate)) break; } line++; @@ -629,10 +679,10 @@ static char *find_name_common(const char *line, char *def, int p_value, start = line; } if (!start) - return squash_slash(def); + return squash_slash(xstrdup_or_null(def)); len = line - start; if (!len) - return squash_slash(def); + return squash_slash(xstrdup_or_null(def)); /* * Generally we prefer the shorter name, especially @@ -643,15 +693,11 @@ static char *find_name_common(const char *line, char *def, int p_value, if (def) { int deflen = strlen(def); if (deflen < len && !strncmp(start, def, deflen)) - return squash_slash(def); - free(def); + return squash_slash(xstrdup(def)); } - if (root) { - char *ret = xmalloc(root_len + len + 1); - strcpy(ret, root); - memcpy(ret + root_len, start, len); - ret[root_len + len] = '\0'; + if (root.len) { + char *ret = xstrfmt("%s%.*s", root.buf, len, start); return squash_slash(ret); } @@ -671,7 +717,7 @@ static char *find_name(const char *line, char *def, int p_value, int terminate) static char *find_name_traditional(const char *line, char *def, int p_value) { - size_t len = strlen(line); + size_t len; size_t date_len; if (*line == '"') { @@ -735,7 +781,7 @@ static int guess_p_value(const char *nameline) } /* - * Does the ---/+++ line has the POSIX timestamp after the last HT? + * Does the ---/+++ line have the POSIX timestamp after the last HT? * GNU diff puts epoch there to signal a creation/deletion event. Is * this such a timestamp? */ @@ -769,7 +815,7 @@ static int has_epoch_timestamp(const char *nameline) if (!stamp) { stamp = xmalloc(sizeof(*stamp)); if (regcomp(stamp, stamp_regexp, REG_EXTENDED)) { - warning("Cannot prepare timestamp regexp %s", + warning(_("Cannot prepare timestamp regexp %s"), stamp_regexp); return 0; } @@ -778,7 +824,7 @@ static int has_epoch_timestamp(const char *nameline) status = regexec(stamp, timestamp, ARRAY_SIZE(m), m, 0); if (status) { if (status != REG_NOMATCH) - warning("regexec returned %d for input: %s", + warning(_("regexec returned %d for input: %s"), status, timestamp); return 0; } @@ -841,8 +887,10 @@ static void parse_traditional_patch(const char *first, const char *second, struc name = find_name_traditional(first, NULL, p_value); patch->old_name = name; } else { - name = find_name_traditional(first, NULL, p_value); - name = find_name_traditional(second, name, p_value); + char *first_name; + first_name = find_name_traditional(first, NULL, p_value); + name = find_name_traditional(second, first_name, p_value); + free(first_name); if (has_epoch_timestamp(first)) { patch->is_new = 1; patch->is_delete = 0; @@ -852,11 +900,12 @@ static void parse_traditional_patch(const char *first, const char *second, struc patch->is_delete = 1; patch->old_name = name; } else { - patch->old_name = patch->new_name = name; + patch->old_name = name; + patch->new_name = xstrdup_or_null(name); } } if (!name) - die("unable to find filename in patch at line %d", linenr); + die(_("unable to find filename in patch at line %d"), linenr); } static int gitdiff_hdrend(const char *line, struct patch *patch) @@ -873,42 +922,46 @@ static int gitdiff_hdrend(const char *line, struct patch *patch) * their names against any previous information, just * to make sure.. */ -static char *gitdiff_verify_name(const char *line, int isnull, char *orig_name, const char *oldnew) +#define DIFF_OLD_NAME 0 +#define DIFF_NEW_NAME 1 + +static char *gitdiff_verify_name(const char *line, int isnull, char *orig_name, int side) { if (!orig_name && !isnull) return find_name(line, NULL, p_value, TERM_TAB); if (orig_name) { - int len; - const char *name; + int len = strlen(orig_name); char *another; - name = orig_name; - len = strlen(name); if (isnull) - die("git apply: bad git-diff - expected /dev/null, got %s on line %d", name, linenr); + die(_("git apply: bad git-diff - expected /dev/null, got %s on line %d"), + orig_name, linenr); another = find_name(line, NULL, p_value, TERM_TAB); - if (!another || memcmp(another, name, len + 1)) - die("git apply: bad git-diff - inconsistent %s filename on line %d", oldnew, linenr); + if (!another || memcmp(another, orig_name, len + 1)) + die((side == DIFF_NEW_NAME) ? + _("git apply: bad git-diff - inconsistent new filename on line %d") : + _("git apply: bad git-diff - inconsistent old filename on line %d"), linenr); free(another); return orig_name; - } - else { + } else { /* expect "/dev/null" */ if (memcmp("/dev/null", line, 9) || line[9] != '\n') - die("git apply: bad git-diff - expected /dev/null on line %d", linenr); + die(_("git apply: bad git-diff - expected /dev/null on line %d"), linenr); return NULL; } } static int gitdiff_oldname(const char *line, struct patch *patch) { - patch->old_name = gitdiff_verify_name(line, patch->is_new, patch->old_name, "old"); + patch->old_name = gitdiff_verify_name(line, patch->is_new, patch->old_name, + DIFF_OLD_NAME); return 0; } static int gitdiff_newname(const char *line, struct patch *patch) { - patch->new_name = gitdiff_verify_name(line, patch->is_delete, patch->new_name, "new"); + patch->new_name = gitdiff_verify_name(line, patch->is_delete, patch->new_name, + DIFF_NEW_NAME); return 0; } @@ -927,20 +980,23 @@ static int gitdiff_newmode(const char *line, struct patch *patch) static int gitdiff_delete(const char *line, struct patch *patch) { patch->is_delete = 1; - patch->old_name = patch->def_name; + free(patch->old_name); + patch->old_name = xstrdup_or_null(patch->def_name); return gitdiff_oldmode(line, patch); } static int gitdiff_newfile(const char *line, struct patch *patch) { patch->is_new = 1; - patch->new_name = patch->def_name; + free(patch->new_name); + patch->new_name = xstrdup_or_null(patch->def_name); return gitdiff_newmode(line, patch); } static int gitdiff_copysrc(const char *line, struct patch *patch) { patch->is_copy = 1; + free(patch->old_name); patch->old_name = find_name(line, NULL, p_value ? p_value - 1 : 0, 0); return 0; } @@ -948,6 +1004,7 @@ static int gitdiff_copysrc(const char *line, struct patch *patch) static int gitdiff_copydst(const char *line, struct patch *patch) { patch->is_copy = 1; + free(patch->new_name); patch->new_name = find_name(line, NULL, p_value ? p_value - 1 : 0, 0); return 0; } @@ -955,6 +1012,7 @@ static int gitdiff_copydst(const char *line, struct patch *patch) static int gitdiff_renamesrc(const char *line, struct patch *patch) { patch->is_rename = 1; + free(patch->old_name); patch->old_name = find_name(line, NULL, p_value ? p_value - 1 : 0, 0); return 0; } @@ -962,21 +1020,24 @@ static int gitdiff_renamesrc(const char *line, struct patch *patch) static int gitdiff_renamedst(const char *line, struct patch *patch) { patch->is_rename = 1; + free(patch->new_name); patch->new_name = find_name(line, NULL, p_value ? p_value - 1 : 0, 0); return 0; } static int gitdiff_similarity(const char *line, struct patch *patch) { - if ((patch->score = strtoul(line, NULL, 10)) == ULONG_MAX) - patch->score = 0; + unsigned long val = strtoul(line, NULL, 10); + if (val <= 100) + patch->score = val; return 0; } static int gitdiff_dissimilarity(const char *line, struct patch *patch) { - if ((patch->score = strtoul(line, NULL, 10)) == ULONG_MAX) - patch->score = 0; + unsigned long val = strtoul(line, NULL, 10); + if (val <= 100) + patch->score = val; return 0; } @@ -998,7 +1059,7 @@ static int gitdiff_index(const char *line, struct patch *patch) line = ptr + 2; ptr = strchr(line, ' '); - eol = strchr(line, '\n'); + eol = strchrnul(line, '\n'); if (!ptr || eol < ptr) ptr = eol; @@ -1022,15 +1083,23 @@ static int gitdiff_unrecognized(const char *line, struct patch *patch) return -1; } -static const char *stop_at_slash(const char *line, int llen) +/* + * Skip p_value leading components from "line"; as we do not accept + * absolute paths, return NULL in that case. + */ +static const char *skip_tree_prefix(const char *line, int llen) { - int nslash = p_value; + int nslash; int i; + if (!p_value) + return (llen && line[0] == '/') ? NULL : line; + + nslash = p_value; for (i = 0; i < llen; i++) { int ch = line[i]; if (ch == '/' && --nslash <= 0) - return &line[i]; + return (i == 0) ? NULL : &line[i + 1]; } return NULL; } @@ -1043,7 +1112,7 @@ static const char *stop_at_slash(const char *line, int llen) * creation or deletion of an empty file. In any of these cases, * both sides are the same name under a/ and b/ respectively. */ -static char *git_header_name(char *line, int llen) +static char *git_header_name(const char *line, int llen) { const char *name; const char *second = NULL; @@ -1060,12 +1129,11 @@ static char *git_header_name(char *line, int llen) if (unquote_c_style(&first, line, &second)) goto free_and_fail1; - /* advance to the first slash */ - cp = stop_at_slash(first.buf, first.len); - /* we do not accept absolute paths */ - if (!cp || cp == first.buf) + /* strip the a/b prefix including trailing slash */ + cp = skip_tree_prefix(first.buf, first.len); + if (!cp) goto free_and_fail1; - strbuf_remove(&first, 0, cp + 1 - first.buf); + strbuf_remove(&first, 0, cp - first.buf); /* * second points at one past closing dq of name. @@ -1079,22 +1147,21 @@ static char *git_header_name(char *line, int llen) if (*second == '"') { if (unquote_c_style(&sp, second, NULL)) goto free_and_fail1; - cp = stop_at_slash(sp.buf, sp.len); - if (!cp || cp == sp.buf) + cp = skip_tree_prefix(sp.buf, sp.len); + if (!cp) goto free_and_fail1; /* They must match, otherwise ignore */ - if (strcmp(cp + 1, first.buf)) + if (strcmp(cp, first.buf)) goto free_and_fail1; strbuf_release(&sp); return strbuf_detach(&first, NULL); } /* unquoted second */ - cp = stop_at_slash(second, line + llen - second); - if (!cp || cp == second) + cp = skip_tree_prefix(second, line + llen - second); + if (!cp) goto free_and_fail1; - cp++; - if (line + llen - cp != first.len + 1 || + if (line + llen - cp != first.len || memcmp(first.buf, cp, first.len)) goto free_and_fail1; return strbuf_detach(&first, NULL); @@ -1106,10 +1173,9 @@ static char *git_header_name(char *line, int llen) } /* unquoted first name */ - name = stop_at_slash(line, llen); - if (!name || name == line) + name = skip_tree_prefix(line, llen); + if (!name) return NULL; - name++; /* * since the first name is unquoted, a dq if exists must be @@ -1123,10 +1189,9 @@ static char *git_header_name(char *line, int llen) if (unquote_c_style(&sp, second, NULL)) goto free_and_fail2; - np = stop_at_slash(sp.buf, sp.len); - if (!np || np == sp.buf) + np = skip_tree_prefix(sp.buf, sp.len); + if (!np) goto free_and_fail2; - np++; len = sp.buf + sp.len - np; if (len < second - name && @@ -1158,19 +1223,33 @@ static char *git_header_name(char *line, int llen) case '\n': return NULL; case '\t': case ' ': - second = stop_at_slash(name + len, line_len - len); + /* + * Is this the separator between the preimage + * and the postimage pathname? Again, we are + * only interested in the case where there is + * no rename, as this is only to set def_name + * and a rename patch has the names elsewhere + * in an unambiguous form. + */ + if (!name[len + 1]) + return NULL; /* no postimage name */ + second = skip_tree_prefix(name + len + 1, + line_len - (len + 1)); if (!second) return NULL; - second++; - if (second[len] == '\n' && !strncmp(name, second, len)) { + /* + * Does len bytes starting at "name" and "second" + * (that are separated by one HT or SP we just + * found) exactly match? + */ + if (second[len] == '\n' && !strncmp(name, second, len)) return xmemdupz(name, len); - } } } } /* Verify that we recognize the lines following a git header */ -static int parse_git_header(char *line, int len, unsigned int size, struct patch *patch) +static int parse_git_header(const char *line, int len, unsigned int size, struct patch *patch) { unsigned long offset; @@ -1185,10 +1264,8 @@ static int parse_git_header(char *line, int len, unsigned int size, struct patch * the default name from the header. */ patch->def_name = git_header_name(line, len); - if (patch->def_name && root) { - char *s = xmalloc(root_len + strlen(patch->def_name) + 1); - strcpy(s, root); - strcpy(s + root_len, patch->def_name); + if (patch->def_name && root.len) { + char *s = xstrfmt("%s%s", root.buf, patch->def_name); free(patch->def_name); patch->def_name = s; } @@ -1286,7 +1363,7 @@ static int parse_range(const char *line, int len, int offset, const char *expect return offset + ex; } -static void recount_diff(char *line, int size, struct fragment *fragment) +static void recount_diff(const char *line, int size, struct fragment *fragment) { int oldlines = 0, newlines = 0, ret = 0; @@ -1316,17 +1393,17 @@ static void recount_diff(char *line, int size, struct fragment *fragment) case '\\': continue; case '@': - ret = size < 3 || prefixcmp(line, "@@ "); + ret = size < 3 || !starts_with(line, "@@ "); break; case 'd': - ret = size < 5 || prefixcmp(line, "diff "); + ret = size < 5 || !starts_with(line, "diff "); break; default: ret = -1; break; } if (ret) { - warning("recount: unexpected line: %.*s", + warning(_("recount: unexpected line: %.*s"), (int)linelen(line, size), line); return; } @@ -1340,7 +1417,7 @@ static void recount_diff(char *line, int size, struct fragment *fragment) * Parse a unified diff fragment header of the * form "@@ -a,b +c,d @@" */ -static int parse_fragment_header(char *line, int len, struct fragment *fragment) +static int parse_fragment_header(const char *line, int len, struct fragment *fragment) { int offset; @@ -1354,7 +1431,7 @@ static int parse_fragment_header(char *line, int len, struct fragment *fragment) return offset; } -static int find_header(char *line, unsigned long size, int *hdrsize, struct patch *patch) +static int find_header(const char *line, unsigned long size, int *hdrsize, struct patch *patch) { unsigned long offset, len; @@ -1383,7 +1460,7 @@ static int find_header(char *line, unsigned long size, int *hdrsize, struct patc struct fragment dummy; if (parse_fragment_header(line, len, &dummy) < 0) continue; - die("patch fragment without header at line %d: %.*s", + die(_("patch fragment without header at line %d: %.*s"), linenr, (int)len-1, line); } @@ -1400,9 +1477,14 @@ static int find_header(char *line, unsigned long size, int *hdrsize, struct patc continue; if (!patch->old_name && !patch->new_name) { if (!patch->def_name) - die("git diff header lacks filename information when removing " - "%d leading pathname components (line %d)" , p_value, linenr); - patch->old_name = patch->new_name = patch->def_name; + die(Q_("git diff header lacks filename information when removing " + "%d leading pathname component (line %d)", + "git diff header lacks filename information when removing " + "%d leading pathname components (line %d)", + p_value), + p_value, linenr); + patch->old_name = xstrdup(patch->def_name); + patch->new_name = xstrdup(patch->def_name); } if (!patch->is_delete && !patch->new_name) die("git diff header lacks filename information " @@ -1465,7 +1547,7 @@ static void check_whitespace(const char *line, int len, unsigned ws_rule) * between a "---" that is part of a patch, and a "---" that starts * the next patch is to look at the line counts.. */ -static int parse_fragment(char *line, unsigned long size, +static int parse_fragment(const char *line, unsigned long size, struct patch *patch, struct fragment *fragment) { int added, deleted; @@ -1506,6 +1588,9 @@ static int parse_fragment(char *line, unsigned long size, if (!deleted && !added) leading++; trailing++; + if (!apply_in_reverse && + ws_error_action == correct_ws_error) + check_whitespace(line, len, patch->ws_rule); break; case '-': if (apply_in_reverse && @@ -1540,6 +1625,9 @@ static int parse_fragment(char *line, unsigned long size, } if (oldlines || newlines) return -1; + if (!deleted && !added) + return -1; + fragment->leading = leading; fragment->trailing = trailing; @@ -1555,13 +1643,21 @@ static int parse_fragment(char *line, unsigned long size, patch->lines_deleted += deleted; if (0 < patch->is_new && oldlines) - return error("new file depends on old contents"); + return error(_("new file depends on old contents")); if (0 < patch->is_delete && newlines) - return error("deleted file still has contents"); + return error(_("deleted file still has contents")); return offset; } -static int parse_single_patch(char *line, unsigned long size, struct patch *patch) +/* + * We have seen "diff --git a/... b/..." header (or a traditional patch + * header). Read hunks that belong to this patch into fragments and hang + * them to the given patch structure. + * + * The (fragment->patch, fragment->size) pair points into the memory given + * by the caller, not a copy, when we return. + */ +static int parse_single_patch(const char *line, unsigned long size, struct patch *patch) { unsigned long offset = 0; unsigned long oldlines = 0, newlines = 0, context = 0; @@ -1575,7 +1671,7 @@ static int parse_single_patch(char *line, unsigned long size, struct patch *patc fragment->linenr = linenr; len = parse_fragment(line, size, patch, fragment); if (len <= 0) - die("corrupt patch at line %d", linenr); + die(_("corrupt patch at line %d"), linenr); fragment->patch = line; fragment->size = len; oldlines += fragment->oldlines; @@ -1611,12 +1707,14 @@ static int parse_single_patch(char *line, unsigned long size, struct patch *patc patch->is_delete = 0; if (0 < patch->is_new && oldlines) - die("new file %s depends on old contents", patch->new_name); + die(_("new file %s depends on old contents"), patch->new_name); if (0 < patch->is_delete && newlines) - die("deleted file %s still has contents", patch->old_name); + die(_("deleted file %s still has contents"), patch->old_name); if (!patch->is_delete && !newlines && context) - fprintf(stderr, "** warning: file %s becomes empty but " - "is not deleted\n", patch->new_name); + fprintf_ln(stderr, + _("** warning: " + "file %s becomes empty but is not deleted"), + patch->new_name); return offset; } @@ -1654,6 +1752,11 @@ static char *inflate_it(const void *data, unsigned long size, return out; } +/* + * Read a binary hunk and return a new fragment; fragment->patch + * points at an allocated memory that the caller must free, so + * it is marked as "->free_patch = 1". + */ static struct fragment *parse_binary_hunk(char **buf_p, unsigned long *sz_p, int *status_p, @@ -1685,11 +1788,11 @@ static struct fragment *parse_binary_hunk(char **buf_p, *status_p = 0; - if (!prefixcmp(buffer, "delta ")) { + if (starts_with(buffer, "delta ")) { patch_method = BINARY_DELTA_DEFLATED; origlen = strtoul(buffer + 6, NULL, 10); } - else if (!prefixcmp(buffer, "literal ")) { + else if (starts_with(buffer, "literal ")) { patch_method = BINARY_LITERAL_DEFLATED; origlen = strtoul(buffer + 8, NULL, 10); } @@ -1741,6 +1844,7 @@ static struct fragment *parse_binary_hunk(char **buf_p, frag = xcalloc(1, sizeof(*frag)); frag->patch = inflate_it(data, hunk_size, origlen); + frag->free_patch = 1; if (!frag->patch) goto corrupt; free(data); @@ -1754,11 +1858,16 @@ static struct fragment *parse_binary_hunk(char **buf_p, corrupt: free(data); *status_p = -1; - error("corrupt binary patch at line %d: %.*s", + error(_("corrupt binary patch at line %d: %.*s"), linenr-1, llen-1, buffer); return NULL; } +/* + * Returns: + * -1 in case of error, + * the length of the parsed binary patch otherwise + */ static int parse_binary(char *buffer, unsigned long size, struct patch *patch) { /* @@ -1783,7 +1892,7 @@ static int parse_binary(char *buffer, unsigned long size, struct patch *patch) forward = parse_binary_hunk(&buffer, &size, &status, &used); if (!forward && !status) /* there has to be one hunk (forward hunk) */ - return error("unrecognized binary patch at line %d", linenr-1); + return error(_("unrecognized binary patch at line %d"), linenr-1); if (status) /* otherwise we already gave an error message */ return status; @@ -1806,6 +1915,73 @@ static int parse_binary(char *buffer, unsigned long size, struct patch *patch) return used; } +static void prefix_one(char **name) +{ + char *old_name = *name; + if (!old_name) + return; + *name = xstrdup(prefix_filename(prefix, prefix_length, *name)); + free(old_name); +} + +static void prefix_patch(struct patch *p) +{ + if (!prefix || p->is_toplevel_relative) + return; + prefix_one(&p->new_name); + prefix_one(&p->old_name); +} + +/* + * include/exclude + */ + +static struct string_list limit_by_name; +static int has_include; +static void add_name_limit(const char *name, int exclude) +{ + struct string_list_item *it; + + it = string_list_append(&limit_by_name, name); + it->util = exclude ? NULL : (void *) 1; +} + +static int use_patch(struct patch *p) +{ + const char *pathname = p->new_name ? p->new_name : p->old_name; + int i; + + /* Paths outside are not touched regardless of "--include" */ + if (0 < prefix_length) { + int pathlen = strlen(pathname); + if (pathlen <= prefix_length || + memcmp(prefix, pathname, prefix_length)) + return 0; + } + + /* See if it matches any of exclude/include rule */ + for (i = 0; i < limit_by_name.nr; i++) { + struct string_list_item *it = &limit_by_name.items[i]; + if (!wildmatch(it->string, pathname, 0, NULL)) + return (it->util != NULL); + } + + /* + * If we had any include, a path that does not match any rule is + * not used. Otherwise, we saw bunch of exclude rules (or none) + * and such a path is used. + */ + return !has_include; +} + + +/* + * Read the patch text in "buffer" that extends for "size" bytes; stop + * reading after seeing a single patch (i.e. changes to a single file). + * Create fragments (i.e. patch hunks) and hang them to the given patch. + * Return the number of bytes consumed, so that the caller can call us + * again for the next patch. + */ static int parse_chunk(char *buffer, unsigned long size, struct patch *patch) { int hdrsize, patchsize; @@ -1814,21 +1990,20 @@ static int parse_chunk(char *buffer, unsigned long size, struct patch *patch) if (offset < 0) return offset; - patch->ws_rule = whitespace_rule(patch->new_name - ? patch->new_name - : patch->old_name); + prefix_patch(patch); + + if (!use_patch(patch)) + patch->ws_rule = 0; + else + patch->ws_rule = whitespace_rule(patch->new_name + ? patch->new_name + : patch->old_name); patchsize = parse_single_patch(buffer + offset + hdrsize, size - offset - hdrsize, patch); if (!patchsize) { - static const char *binhdr[] = { - "Binary files ", - "Files ", - NULL, - }; static const char git_binary[] = "GIT binary patch\n"; - int i; int hd = hdrsize + offset; unsigned long llen = linelen(buffer + hd, size - hd); @@ -1838,12 +2013,20 @@ static int parse_chunk(char *buffer, unsigned long size, struct patch *patch) linenr++; used = parse_binary(buffer + hd + llen, size - hd - llen, patch); + if (used < 0) + return -1; if (used) patchsize = used + llen; else patchsize = 0; } else if (!memcmp(" differ\n", buffer + hd + llen - 8, 8)) { + static const char *binhdr[] = { + "Binary files ", + "Files ", + NULL, + }; + int i; for (i = 0; binhdr[i]; i++) { int len = strlen(binhdr[i]); if (len < size - hd && @@ -1862,7 +2045,7 @@ static int parse_chunk(char *buffer, unsigned long size, struct patch *patch) */ if ((apply || check) && (!patch->is_binary && !metadata_changes(patch))) - die("patch with only garbage at line %d", linenr); + die(_("patch with only garbage at line %d"), linenr); } return offset + hdrsize + patchsize; @@ -1952,11 +2135,11 @@ static int read_old_data(struct stat *st, const char *path, struct strbuf *buf) switch (st->st_mode & S_IFMT) { case S_IFLNK: if (strbuf_readlink(buf, path, st->st_size) < 0) - return error("unable to read symlink %s", path); + return error(_("unable to read symlink %s"), path); return 0; case S_IFREG: if (strbuf_read_file(buf, path, st->st_size) != st->st_size) - return error("unable to open or read %s", path); + return error(_("unable to open or read %s"), path); convert_to_git(path, buf->buf, buf->len, buf, 0); return 0; default: @@ -1976,7 +2159,7 @@ static void update_pre_post_images(struct image *preimage, char *buf, size_t len, size_t postlen) { - int i, ctx; + int i, ctx, reduced; char *new, *old, *fixed; struct image fixed_preimage; @@ -1986,18 +2169,20 @@ static void update_pre_post_images(struct image *preimage, * free "oldlines". */ prepare_image(&fixed_preimage, buf, len, 1); - assert(fixed_preimage.nr == preimage->nr); - for (i = 0; i < preimage->nr; i++) + assert(postlen + ? fixed_preimage.nr == preimage->nr + : fixed_preimage.nr <= preimage->nr); + for (i = 0; i < fixed_preimage.nr; i++) fixed_preimage.line[i].flag = preimage->line[i].flag; free(preimage->line_allocated); *preimage = fixed_preimage; /* * Adjust the common context lines in postimage. This can be - * done in-place when we are just doing whitespace fixing, - * which does not make the string grow, but needs a new buffer - * when ignoring whitespace causes the update, since in this case - * we could have e.g. tabs converted to multiple spaces. + * done in-place when we are shrinking it with whitespace + * fixing, but needs a new buffer when ignoring whitespace or + * expanding leading tabs to spaces. + * * We trust the caller to tell us if the update can be done * in place (postlen==0) or not. */ @@ -2007,7 +2192,8 @@ static void update_pre_post_images(struct image *preimage, else new = old; fixed = preimage->buf; - for (i = ctx = 0; i < postimage->nr; i++) { + + for (i = reduced = ctx = 0; i < postimage->nr; i++) { size_t len = postimage->line[i].len; if (!(postimage->line[i].flag & LINE_COMMON)) { /* an added line -- no counterparts in preimage */ @@ -2026,8 +2212,15 @@ static void update_pre_post_images(struct image *preimage, fixed += preimage->line[ctx].len; ctx++; } - if (preimage->nr <= ctx) - die("oops"); + + /* + * preimage is expected to run out, if the caller + * fixed addition of trailing blank lines. + */ + if (preimage->nr <= ctx) { + reduced++; + continue; + } /* and copy it in, while fixing the line length */ len = preimage->line[ctx].len; @@ -2038,8 +2231,15 @@ static void update_pre_post_images(struct image *preimage, ctx++; } + if (postlen + ? postlen < new - postimage->buf + : postimage->len < new - postimage->buf) + die("BUG: caller miscounted postlen: asked %d, orig = %d, used = %d", + (int)postlen, (int) postimage->len, (int)(new - postimage->buf)); + /* Fix the length of the whole thing */ postimage->len = new - postimage->buf; + postimage->nr -= reduced; } static int match_fragment(struct image *img, @@ -2053,7 +2253,7 @@ static int match_fragment(struct image *img, int i; char *fixed_buf, *buf, *orig, *target; struct strbuf fixed; - size_t fixed_len; + size_t fixed_len, postlen; int preimage_limit; if (preimage->nr + try_lno <= img->nr) { @@ -2192,10 +2392,27 @@ static int match_fragment(struct image *img, /* * The hunk does not apply byte-by-byte, but the hash says - * it might with whitespace fuzz. We haven't been asked to + * it might with whitespace fuzz. We weren't asked to * ignore whitespace, we were asked to correct whitespace * errors, so let's try matching after whitespace correction. * + * While checking the preimage against the target, whitespace + * errors in both fixed, we count how large the corresponding + * postimage needs to be. The postimage prepared by + * apply_one_fragment() has whitespace errors fixed on added + * lines already, but the common lines were propagated as-is, + * which may become longer when their whitespace errors are + * fixed. + */ + + /* First count added lines in postimage */ + postlen = 0; + for (i = 0; i < postimage->nr; i++) { + if (!(postimage->line[i].flag & LINE_COMMON)) + postlen += postimage->line[i].len; + } + + /* * The preimage may extend beyond the end of the file, * but in this loop we will only handle the part of the * preimage that falls within the file. @@ -2231,6 +2448,10 @@ static int match_fragment(struct image *img, !memcmp(tgtfix.buf, fixed.buf + fixstart, fixed.len - fixstart)); + /* Add the length if this is common with the postimage */ + if (preimage->line[i].flag & LINE_COMMON) + postlen += tgtfix.len; + strbuf_release(&tgtfix); if (!match) goto unmatch_exit; @@ -2267,8 +2488,10 @@ static int match_fragment(struct image *img, * hunk match. Update the context lines in the postimage. */ fixed_buf = strbuf_detach(&fixed, &fixed_len); + if (postlen < postimage->len) + postlen = 0; update_pre_post_images(preimage, postimage, - fixed_buf, fixed_len, 0); + fixed_buf, fixed_len, postlen); return 1; unmatch_exit: @@ -2366,6 +2589,11 @@ static void remove_last_line(struct image *img) img->len -= img->line[--img->nr].len; } +/* + * The change from "preimage" and "postimage" has been found to + * apply at applied_pos (counts in line numbers) in "img". + * Update "img" to remove "preimage" and replace it with "postimage". + */ static void update_image(struct image *img, int applied_pos, struct image *preimage, @@ -2402,7 +2630,7 @@ static void update_image(struct image *img, insert_count = postimage->len; /* Adjust the contents */ - result = xmalloc(img->len + insert_count - remove_count + 1); + result = xmalloc(st_add3(st_sub(img->len, remove_count), insert_count, 1)); memcpy(result, img->buf, applied_at); memcpy(result + applied_at, postimage->buf, postimage->len); memcpy(result + applied_at + postimage->len, @@ -2420,7 +2648,7 @@ static void update_image(struct image *img, * NOTE: this knows that we never call remove_first_line() * on anything other than pre/post image. */ - img->line = xrealloc(img->line, nr * sizeof(*img->line)); + REALLOC_ARRAY(img->line, nr); img->line_allocated = img->line; } if (preimage_limit != postimage->nr) @@ -2437,6 +2665,11 @@ static void update_image(struct image *img, img->nr = nr; } +/* + * Use the patch-hunk text in "frag" to prepare two images (preimage and + * postimage) for the hunk. Find lines that match "preimage" in "img" and + * replace the part of "img" with "postimage" text. + */ static int apply_one_fragment(struct image *img, struct fragment *frag, int inaccurate_eof, unsigned ws_rule, int nth_fragment) @@ -2539,8 +2772,9 @@ static int apply_one_fragment(struct image *img, struct fragment *frag, break; default: if (apply_verbosely) - error("invalid start of line: '%c'", first); - return -1; + error(_("invalid start of line: '%c'"), first); + applied_pos = -1; + goto out; } if (added_blank_line) { if (!new_blank_lines_at_end) @@ -2656,9 +2890,11 @@ static int apply_one_fragment(struct image *img, struct fragment *frag, int offset = applied_pos - pos; if (apply_in_reverse) offset = 0 - offset; - fprintf(stderr, - "Hunk #%d succeeded at %d (offset %d lines).\n", - nth_fragment, applied_pos + 1, offset); + fprintf_ln(stderr, + Q_("Hunk #%d succeeded at %d (offset %d line).", + "Hunk #%d succeeded at %d (offset %d lines).", + offset), + nth_fragment, applied_pos + 1, offset); } /* @@ -2667,16 +2903,17 @@ static int apply_one_fragment(struct image *img, struct fragment *frag, */ if ((leading != frag->leading) || (trailing != frag->trailing)) - fprintf(stderr, "Context reduced to (%ld/%ld)" - " to apply fragment at %d\n", - leading, trailing, applied_pos+1); + fprintf_ln(stderr, _("Context reduced to (%ld/%ld)" + " to apply fragment at %d"), + leading, trailing, applied_pos+1); update_image(img, applied_pos, &preimage, &postimage); } else { if (apply_verbosely) - error("while searching for:\n%.*s", + error(_("while searching for:\n%.*s"), (int)(old - oldlines), oldlines); } +out: free(oldlines); strbuf_release(&newlines); free(preimage.line_allocated); @@ -2692,7 +2929,7 @@ static int apply_binary_fragment(struct image *img, struct patch *patch) void *dst; if (!fragment) - return error("missing binary patch data for '%s'", + return error(_("missing binary patch data for '%s'"), patch->new_name ? patch->new_name : patch->old_name); @@ -2719,14 +2956,18 @@ static int apply_binary_fragment(struct image *img, struct patch *patch) case BINARY_LITERAL_DEFLATED: clear_image(img); img->len = fragment->size; - img->buf = xmalloc(img->len+1); - memcpy(img->buf, fragment->patch, img->len); - img->buf[img->len] = '\0'; + img->buf = xmemdupz(fragment->patch, img->len); return 0; } return -1; } +/* + * Replace "img" with the result of applying the binary patch. + * The binary patch data itself in patch->fragment is still kept + * but the preimage prepared by the caller in "img" is freed here + * or in the helper function apply_binary_fragment() this calls. + */ static int apply_binary(struct image *img, struct patch *patch) { const char *name = patch->old_name ? patch->old_name : patch->new_name; @@ -2789,13 +3030,13 @@ static int apply_binary(struct image *img, struct patch *patch) * in the patch->fragments->{patch,size}. */ if (apply_binary_fragment(img, patch)) - return error("binary patch does not apply to '%s'", + return error(_("binary patch does not apply to '%s'"), name); /* verify that the result matches */ hash_sha1_file(img->buf, img->len, blob_type, sha1); if (strcmp(sha1_to_hex(sha1), patch->new_sha1_prefix)) - return error("binary patch to '%s' creates incorrect result (expecting %s, got %s)", + return error(_("binary patch to '%s' creates incorrect result (expecting %s, got %s)"), name, patch->new_sha1_prefix, sha1_to_hex(sha1)); } @@ -2816,7 +3057,7 @@ static int apply_fragments(struct image *img, struct patch *patch) while (frag) { nth++; if (apply_one_fragment(img, frag, inaccurate_eof, ws_rule, nth)) { - error("patch failed: %s:%ld", name, frag->oldpos); + error(_("patch failed: %s:%ld"), name, frag->oldpos); if (!apply_with_reject) return -1; frag->rejected = 1; @@ -2826,20 +3067,17 @@ static int apply_fragments(struct image *img, struct patch *patch) return 0; } -static int read_file_or_gitlink(struct cache_entry *ce, struct strbuf *buf) +static int read_blob_object(struct strbuf *buf, const unsigned char *sha1, unsigned mode) { - if (!ce) - return 0; - - if (S_ISGITLINK(ce->ce_mode)) { + if (S_ISGITLINK(mode)) { strbuf_grow(buf, 100); - strbuf_addf(buf, "Subproject commit %s\n", sha1_to_hex(ce->sha1)); + strbuf_addf(buf, "Subproject commit %s\n", sha1_to_hex(sha1)); } else { enum object_type type; unsigned long sz; char *result; - result = read_sha1_file(ce->sha1, &type, &sz); + result = read_sha1_file(sha1, &type, &sz); if (!result) return -1; /* XXX read_sha1_file NUL-terminates */ @@ -2848,6 +3086,13 @@ static int read_file_or_gitlink(struct cache_entry *ce, struct strbuf *buf) return 0; } +static int read_file_or_gitlink(const struct cache_entry *ce, struct strbuf *buf) +{ + if (!ce) + return 0; + return read_blob_object(buf, ce->sha1, ce->ce_mode); +} + static struct patch *in_fn_table(const char *name) { struct string_list_item *item; @@ -2866,9 +3111,15 @@ static struct patch *in_fn_table(const char *name) * item->util in the filename table records the status of the path. * Usually it points at a patch (whose result records the contents * of it after applying it), but it could be PATH_WAS_DELETED for a - * path that a previously applied patch has already removed. + * path that a previously applied patch has already removed, or + * PATH_TO_BE_DELETED for a path that a later patch would remove. + * + * The latter is needed to deal with a case where two paths A and B + * are swapped by first renaming A to B and then renaming B to A; + * moving A to B should not be prevented due to presence of B as we + * will remove it in a later patch. */ - #define PATH_TO_BE_DELETED ((struct patch *) -2) +#define PATH_TO_BE_DELETED ((struct patch *) -2) #define PATH_WAS_DELETED ((struct patch *) -1) static int to_be_deleted(struct patch *patch) @@ -2920,152 +3171,351 @@ static void prepare_fn_table(struct patch *patch) } } -static int apply_data(struct patch *patch, struct stat *st, struct cache_entry *ce) +static int checkout_target(struct index_state *istate, + struct cache_entry *ce, struct stat *st) +{ + struct checkout costate; + + memset(&costate, 0, sizeof(costate)); + costate.base_dir = ""; + costate.refresh_cache = 1; + costate.istate = istate; + if (checkout_entry(ce, &costate, NULL) || lstat(ce->name, st)) + return error(_("cannot checkout %s"), ce->name); + return 0; +} + +static struct patch *previous_patch(struct patch *patch, int *gone) +{ + struct patch *previous; + + *gone = 0; + if (patch->is_copy || patch->is_rename) + return NULL; /* "git" patches do not depend on the order */ + + previous = in_fn_table(patch->old_name); + if (!previous) + return NULL; + + if (to_be_deleted(previous)) + return NULL; /* the deletion hasn't happened yet */ + + if (was_deleted(previous)) + *gone = 1; + + return previous; +} + +static int verify_index_match(const struct cache_entry *ce, struct stat *st) +{ + if (S_ISGITLINK(ce->ce_mode)) { + if (!S_ISDIR(st->st_mode)) + return -1; + return 0; + } + return ce_match_stat(ce, st, CE_MATCH_IGNORE_VALID|CE_MATCH_IGNORE_SKIP_WORKTREE); +} + +#define SUBMODULE_PATCH_WITHOUT_INDEX 1 + +static int load_patch_target(struct strbuf *buf, + const struct cache_entry *ce, + struct stat *st, + const char *name, + unsigned expected_mode) +{ + if (cached || check_index) { + if (read_file_or_gitlink(ce, buf)) + return error(_("read of %s failed"), name); + } else if (name) { + if (S_ISGITLINK(expected_mode)) { + if (ce) + return read_file_or_gitlink(ce, buf); + else + return SUBMODULE_PATCH_WITHOUT_INDEX; + } else if (has_symlink_leading_path(name, strlen(name))) { + return error(_("reading from '%s' beyond a symbolic link"), name); + } else { + if (read_old_data(st, name, buf)) + return error(_("read of %s failed"), name); + } + } + return 0; +} + +/* + * We are about to apply "patch"; populate the "image" with the + * current version we have, from the working tree or from the index, + * depending on the situation e.g. --cached/--index. If we are + * applying a non-git patch that incrementally updates the tree, + * we read from the result of a previous diff. + */ +static int load_preimage(struct image *image, + struct patch *patch, struct stat *st, + const struct cache_entry *ce) { struct strbuf buf = STRBUF_INIT; - struct image image; size_t len; char *img; - struct patch *tpatch; + struct patch *previous; + int status; - if (!(patch->is_copy || patch->is_rename) && - (tpatch = in_fn_table(patch->old_name)) != NULL && !to_be_deleted(tpatch)) { - if (was_deleted(tpatch)) { - return error("patch %s has been renamed/deleted", - patch->old_name); - } - /* We have a patched copy in memory use that */ - strbuf_add(&buf, tpatch->result, tpatch->resultsize); - } else if (cached) { - if (read_file_or_gitlink(ce, &buf)) - return error("read of %s failed", patch->old_name); - } else if (patch->old_name) { - if (S_ISGITLINK(patch->old_mode)) { - if (ce) { - read_file_or_gitlink(ce, &buf); - } else { - /* - * There is no way to apply subproject - * patch without looking at the index. - */ - patch->fragments = NULL; - } - } else { - if (read_old_data(st, patch->old_name, &buf)) - return error("read of %s failed", patch->old_name); + previous = previous_patch(patch, &status); + if (status) + return error(_("path %s has been renamed/deleted"), + patch->old_name); + if (previous) { + /* We have a patched copy in memory; use that. */ + strbuf_add(&buf, previous->result, previous->resultsize); + } else { + status = load_patch_target(&buf, ce, st, + patch->old_name, patch->old_mode); + if (status < 0) + return status; + else if (status == SUBMODULE_PATCH_WITHOUT_INDEX) { + /* + * There is no way to apply subproject + * patch without looking at the index. + * NEEDSWORK: shouldn't this be flagged + * as an error??? + */ + free_fragment_list(patch->fragments); + patch->fragments = NULL; + } else if (status) { + return error(_("read of %s failed"), patch->old_name); } } img = strbuf_detach(&buf, &len); - prepare_image(&image, img, len, !patch->is_binary); + prepare_image(image, img, len, !patch->is_binary); + return 0; +} - if (apply_fragments(&image, patch) < 0) - return -1; /* note with --reject this succeeds. */ - patch->result = image.buf; - patch->resultsize = image.len; - add_to_fn_table(patch); - free(image.line_allocated); +static int three_way_merge(struct image *image, + char *path, + const unsigned char *base, + const unsigned char *ours, + const unsigned char *theirs) +{ + mmfile_t base_file, our_file, their_file; + mmbuffer_t result = { NULL }; + int status; - if (0 < patch->is_delete && patch->resultsize) - return error("removal patch leaves file contents"); + read_mmblob(&base_file, base); + read_mmblob(&our_file, ours); + read_mmblob(&their_file, theirs); + status = ll_merge(&result, path, + &base_file, "base", + &our_file, "ours", + &their_file, "theirs", NULL); + free(base_file.ptr); + free(our_file.ptr); + free(their_file.ptr); + if (status < 0 || !result.ptr) { + free(result.ptr); + return -1; + } + clear_image(image); + image->buf = result.ptr; + image->len = result.size; + + return status; +} + +/* + * When directly falling back to add/add three-way merge, we read from + * the current contents of the new_name. In no cases other than that + * this function will be called. + */ +static int load_current(struct image *image, struct patch *patch) +{ + struct strbuf buf = STRBUF_INIT; + int status, pos; + size_t len; + char *img; + struct stat st; + struct cache_entry *ce; + char *name = patch->new_name; + unsigned mode = patch->new_mode; + + if (!patch->is_new) + die("BUG: patch to %s is not a creation", patch->old_name); + pos = cache_name_pos(name, strlen(name)); + if (pos < 0) + return error(_("%s: does not exist in index"), name); + ce = active_cache[pos]; + if (lstat(name, &st)) { + if (errno != ENOENT) + return error(_("%s: %s"), name, strerror(errno)); + if (checkout_target(&the_index, ce, &st)) + return -1; + } + if (verify_index_match(ce, &st)) + return error(_("%s: does not match index"), name); + + status = load_patch_target(&buf, ce, &st, name, mode); + if (status < 0) + return status; + else if (status) + return -1; + img = strbuf_detach(&buf, &len); + prepare_image(image, img, len, !patch->is_binary); return 0; } -static int check_to_create_blob(const char *new_name, int ok_if_exists) +static int try_threeway(struct image *image, struct patch *patch, + struct stat *st, const struct cache_entry *ce) { - struct stat nst; - if (!lstat(new_name, &nst)) { - if (S_ISDIR(nst.st_mode) || ok_if_exists) - return 0; - /* - * A leading component of new_name might be a symlink - * that is going to be removed with this patch, but - * still pointing at somewhere that has the path. - * In such a case, path "new_name" does not exist as - * far as git is concerned. - */ - if (has_symlink_leading_path(new_name, strlen(new_name))) - return 0; + unsigned char pre_sha1[20], post_sha1[20], our_sha1[20]; + struct strbuf buf = STRBUF_INIT; + size_t len; + int status; + char *img; + struct image tmp_image; + + /* No point falling back to 3-way merge in these cases */ + if (patch->is_delete || + S_ISGITLINK(patch->old_mode) || S_ISGITLINK(patch->new_mode)) + return -1; + + /* Preimage the patch was prepared for */ + if (patch->is_new) + write_sha1_file("", 0, blob_type, pre_sha1); + else if (get_sha1(patch->old_sha1_prefix, pre_sha1) || + read_blob_object(&buf, pre_sha1, patch->old_mode)) + return error("repository lacks the necessary blob to fall back on 3-way merge."); - return error("%s: already exists in working directory", new_name); + fprintf(stderr, "Falling back to three-way merge...\n"); + + img = strbuf_detach(&buf, &len); + prepare_image(&tmp_image, img, len, 1); + /* Apply the patch to get the post image */ + if (apply_fragments(&tmp_image, patch) < 0) { + clear_image(&tmp_image); + return -1; + } + /* post_sha1[] is theirs */ + write_sha1_file(tmp_image.buf, tmp_image.len, blob_type, post_sha1); + clear_image(&tmp_image); + + /* our_sha1[] is ours */ + if (patch->is_new) { + if (load_current(&tmp_image, patch)) + return error("cannot read the current contents of '%s'", + patch->new_name); + } else { + if (load_preimage(&tmp_image, patch, st, ce)) + return error("cannot read the current contents of '%s'", + patch->old_name); + } + write_sha1_file(tmp_image.buf, tmp_image.len, blob_type, our_sha1); + clear_image(&tmp_image); + + /* in-core three-way merge between post and our using pre as base */ + status = three_way_merge(image, patch->new_name, + pre_sha1, our_sha1, post_sha1); + if (status < 0) { + fprintf(stderr, "Failed to fall back on three-way merge...\n"); + return status; + } + + if (status) { + patch->conflicted_threeway = 1; + if (patch->is_new) + oidclr(&patch->threeway_stage[0]); + else + hashcpy(patch->threeway_stage[0].hash, pre_sha1); + hashcpy(patch->threeway_stage[1].hash, our_sha1); + hashcpy(patch->threeway_stage[2].hash, post_sha1); + fprintf(stderr, "Applied patch to '%s' with conflicts.\n", patch->new_name); + } else { + fprintf(stderr, "Applied patch to '%s' cleanly.\n", patch->new_name); } - else if ((errno != ENOENT) && (errno != ENOTDIR)) - return error("%s: %s", new_name, strerror(errno)); return 0; } -static int verify_index_match(struct cache_entry *ce, struct stat *st) +static int apply_data(struct patch *patch, struct stat *st, const struct cache_entry *ce) { - if (S_ISGITLINK(ce->ce_mode)) { - if (!S_ISDIR(st->st_mode)) + struct image image; + + if (load_preimage(&image, patch, st, ce) < 0) + return -1; + + if (patch->direct_to_threeway || + apply_fragments(&image, patch) < 0) { + /* Note: with --reject, apply_fragments() returns 0 */ + if (!threeway || try_threeway(&image, patch, st, ce) < 0) return -1; - return 0; } - return ce_match_stat(ce, st, CE_MATCH_IGNORE_VALID|CE_MATCH_IGNORE_SKIP_WORKTREE); + patch->result = image.buf; + patch->resultsize = image.len; + add_to_fn_table(patch); + free(image.line_allocated); + + if (0 < patch->is_delete && patch->resultsize) + return error(_("removal patch leaves file contents")); + + return 0; } +/* + * If "patch" that we are looking at modifies or deletes what we have, + * we would want it not to lose any local modification we have, either + * in the working tree or in the index. + * + * This also decides if a non-git patch is a creation patch or a + * modification to an existing empty file. We do not check the state + * of the current tree for a creation patch in this function; the caller + * check_patch() separately makes sure (and errors out otherwise) that + * the path the patch creates does not exist in the current tree. + */ static int check_preimage(struct patch *patch, struct cache_entry **ce, struct stat *st) { const char *old_name = patch->old_name; - struct patch *tpatch = NULL; - int stat_ret = 0; + struct patch *previous = NULL; + int stat_ret = 0, status; unsigned st_mode = 0; - /* - * Make sure that we do not have local modifications from the - * index when we are looking at the index. Also make sure - * we have the preimage file to be patched in the work tree, - * unless --cached, which tells git to apply only in the index. - */ if (!old_name) return 0; assert(patch->is_new <= 0); + previous = previous_patch(patch, &status); - if (!(patch->is_copy || patch->is_rename) && - (tpatch = in_fn_table(old_name)) != NULL && !to_be_deleted(tpatch)) { - if (was_deleted(tpatch)) - return error("%s: has been deleted/renamed", old_name); - st_mode = tpatch->new_mode; + if (status) + return error(_("path %s has been renamed/deleted"), old_name); + if (previous) { + st_mode = previous->new_mode; } else if (!cached) { stat_ret = lstat(old_name, st); if (stat_ret && errno != ENOENT) - return error("%s: %s", old_name, strerror(errno)); + return error(_("%s: %s"), old_name, strerror(errno)); } - if (to_be_deleted(tpatch)) - tpatch = NULL; - - if (check_index && !tpatch) { + if (check_index && !previous) { int pos = cache_name_pos(old_name, strlen(old_name)); if (pos < 0) { if (patch->is_new < 0) goto is_new; - return error("%s: does not exist in index", old_name); + return error(_("%s: does not exist in index"), old_name); } *ce = active_cache[pos]; if (stat_ret < 0) { - struct checkout costate; - /* checkout */ - memset(&costate, 0, sizeof(costate)); - costate.base_dir = ""; - costate.refresh_cache = 1; - if (checkout_entry(*ce, &costate, NULL) || - lstat(old_name, st)) + if (checkout_target(&the_index, *ce, st)) return -1; } if (!cached && verify_index_match(*ce, st)) - return error("%s: does not match index", old_name); + return error(_("%s: does not match index"), old_name); if (cached) st_mode = (*ce)->ce_mode; } else if (stat_ret < 0) { if (patch->is_new < 0) goto is_new; - return error("%s: %s", old_name, strerror(errno)); + return error(_("%s: %s"), old_name, strerror(errno)); } - if (!cached && !tpatch) + if (!cached && !previous) st_mode = ce_mode_from_stat(*ce, st->st_mode); if (patch->is_new < 0) @@ -3073,9 +3523,9 @@ static int check_preimage(struct patch *patch, struct cache_entry **ce, struct s if (!patch->old_mode) patch->old_mode = st_mode; if ((st_mode ^ patch->old_mode) & S_IFMT) - return error("%s: wrong type", old_name); + return error(_("%s: wrong type"), old_name); if (st_mode != patch->old_mode) - warning("%s has type %o, expected %o", + warning(_("%s has type %o, expected %o"), old_name, st_mode, patch->old_mode); if (!patch->new_mode && !patch->is_delete) patch->new_mode = st_mode; @@ -3084,10 +3534,165 @@ static int check_preimage(struct patch *patch, struct cache_entry **ce, struct s is_new: patch->is_new = 1; patch->is_delete = 0; + free(patch->old_name); patch->old_name = NULL; return 0; } + +#define EXISTS_IN_INDEX 1 +#define EXISTS_IN_WORKTREE 2 + +static int check_to_create(const char *new_name, int ok_if_exists) +{ + struct stat nst; + + if (check_index && + cache_name_pos(new_name, strlen(new_name)) >= 0 && + !ok_if_exists) + return EXISTS_IN_INDEX; + if (cached) + return 0; + + if (!lstat(new_name, &nst)) { + if (S_ISDIR(nst.st_mode) || ok_if_exists) + return 0; + /* + * A leading component of new_name might be a symlink + * that is going to be removed with this patch, but + * still pointing at somewhere that has the path. + * In such a case, path "new_name" does not exist as + * far as git is concerned. + */ + if (has_symlink_leading_path(new_name, strlen(new_name))) + return 0; + + return EXISTS_IN_WORKTREE; + } else if ((errno != ENOENT) && (errno != ENOTDIR)) { + return error("%s: %s", new_name, strerror(errno)); + } + return 0; +} + +/* + * We need to keep track of how symlinks in the preimage are + * manipulated by the patches. A patch to add a/b/c where a/b + * is a symlink should not be allowed to affect the directory + * the symlink points at, but if the same patch removes a/b, + * it is perfectly fine, as the patch removes a/b to make room + * to create a directory a/b so that a/b/c can be created. + */ +static struct string_list symlink_changes; +#define SYMLINK_GOES_AWAY 01 +#define SYMLINK_IN_RESULT 02 + +static uintptr_t register_symlink_changes(const char *path, uintptr_t what) +{ + struct string_list_item *ent; + + ent = string_list_lookup(&symlink_changes, path); + if (!ent) { + ent = string_list_insert(&symlink_changes, path); + ent->util = (void *)0; + } + ent->util = (void *)(what | ((uintptr_t)ent->util)); + return (uintptr_t)ent->util; +} + +static uintptr_t check_symlink_changes(const char *path) +{ + struct string_list_item *ent; + + ent = string_list_lookup(&symlink_changes, path); + if (!ent) + return 0; + return (uintptr_t)ent->util; +} + +static void prepare_symlink_changes(struct patch *patch) +{ + for ( ; patch; patch = patch->next) { + if ((patch->old_name && S_ISLNK(patch->old_mode)) && + (patch->is_rename || patch->is_delete)) + /* the symlink at patch->old_name is removed */ + register_symlink_changes(patch->old_name, SYMLINK_GOES_AWAY); + + if (patch->new_name && S_ISLNK(patch->new_mode)) + /* the symlink at patch->new_name is created or remains */ + register_symlink_changes(patch->new_name, SYMLINK_IN_RESULT); + } +} + +static int path_is_beyond_symlink_1(struct strbuf *name) +{ + do { + unsigned int change; + + while (--name->len && name->buf[name->len] != '/') + ; /* scan backwards */ + if (!name->len) + break; + name->buf[name->len] = '\0'; + change = check_symlink_changes(name->buf); + if (change & SYMLINK_IN_RESULT) + return 1; + if (change & SYMLINK_GOES_AWAY) + /* + * This cannot be "return 0", because we may + * see a new one created at a higher level. + */ + continue; + + /* otherwise, check the preimage */ + if (check_index) { + struct cache_entry *ce; + + ce = cache_file_exists(name->buf, name->len, ignore_case); + if (ce && S_ISLNK(ce->ce_mode)) + return 1; + } else { + struct stat st; + if (!lstat(name->buf, &st) && S_ISLNK(st.st_mode)) + return 1; + } + } while (1); + return 0; +} + +static int path_is_beyond_symlink(const char *name_) +{ + int ret; + struct strbuf name = STRBUF_INIT; + + assert(*name_ != '\0'); + strbuf_addstr(&name, name_); + ret = path_is_beyond_symlink_1(&name); + strbuf_release(&name); + + return ret; +} + +static void die_on_unsafe_path(struct patch *patch) +{ + const char *old_name = NULL; + const char *new_name = NULL; + if (patch->is_delete) + old_name = patch->old_name; + else if (!patch->is_new && !patch->is_copy) + old_name = patch->old_name; + if (!patch->is_delete) + new_name = patch->new_name; + + if (old_name && !verify_path(old_name)) + die(_("invalid path '%s'"), old_name); + if (new_name && !verify_path(new_name)) + die(_("invalid path '%s'"), new_name); +} + +/* + * Check and apply the patch in-core; leave the result in patch->result + * for the caller to write it out to the final destination. + */ static int check_patch(struct patch *patch) { struct stat st; @@ -3106,31 +3711,45 @@ static int check_patch(struct patch *patch) return status; old_name = patch->old_name; + /* + * A type-change diff is always split into a patch to delete + * old, immediately followed by a patch to create new (see + * diff.c::run_diff()); in such a case it is Ok that the entry + * to be deleted by the previous patch is still in the working + * tree and in the index. + * + * A patch to swap-rename between A and B would first rename A + * to B and then rename B to A. While applying the first one, + * the presence of B should not stop A from getting renamed to + * B; ask to_be_deleted() about the later rename. Removal of + * B and rename from A to B is handled the same way by asking + * was_deleted(). + */ if ((tpatch = in_fn_table(new_name)) && - (was_deleted(tpatch) || to_be_deleted(tpatch))) - /* - * A type-change diff is always split into a patch to - * delete old, immediately followed by a patch to - * create new (see diff.c::run_diff()); in such a case - * it is Ok that the entry to be deleted by the - * previous patch is still in the working tree and in - * the index. - */ + (was_deleted(tpatch) || to_be_deleted(tpatch))) ok_if_exists = 1; else ok_if_exists = 0; if (new_name && - ((0 < patch->is_new) | (0 < patch->is_rename) | patch->is_copy)) { - if (check_index && - cache_name_pos(new_name, strlen(new_name)) >= 0 && - !ok_if_exists) - return error("%s: already exists in index", new_name); - if (!cached) { - int err = check_to_create_blob(new_name, ok_if_exists); - if (err) - return err; + ((0 < patch->is_new) || patch->is_rename || patch->is_copy)) { + int err = check_to_create(new_name, ok_if_exists); + + if (err && threeway) { + patch->direct_to_threeway = 1; + } else switch (err) { + case 0: + break; /* happy */ + case EXISTS_IN_INDEX: + return error(_("%s: already exists in index"), new_name); + break; + case EXISTS_IN_WORKTREE: + return error(_("%s: already exists in working directory"), + new_name); + default: + return err; } + if (!patch->new_mode) { if (0 < patch->is_new) patch->new_mode = S_IFREG | 0644; @@ -3143,14 +3762,38 @@ static int check_patch(struct patch *patch) int same = !strcmp(old_name, new_name); if (!patch->new_mode) patch->new_mode = patch->old_mode; - if ((patch->old_mode ^ patch->new_mode) & S_IFMT) - return error("new mode (%o) of %s does not match old mode (%o)%s%s", - patch->new_mode, new_name, patch->old_mode, - same ? "" : " of ", same ? "" : old_name); + if ((patch->old_mode ^ patch->new_mode) & S_IFMT) { + if (same) + return error(_("new mode (%o) of %s does not " + "match old mode (%o)"), + patch->new_mode, new_name, + patch->old_mode); + else + return error(_("new mode (%o) of %s does not " + "match old mode (%o) of %s"), + patch->new_mode, new_name, + patch->old_mode, old_name); + } } + if (!unsafe_paths) + die_on_unsafe_path(patch); + + /* + * An attempt to read from or delete a path that is beyond a + * symbolic link will be prevented by load_patch_target() that + * is called at the beginning of apply_data() so we do not + * have to worry about a patch marked with "is_delete" bit + * here. We however need to make sure that the patch result + * is not deposited to a path that is beyond a symbolic link + * here. + */ + if (!patch->is_delete && path_is_beyond_symlink(patch->new_name)) + return error(_("affected file '%s' is beyond a symbolic link"), + patch->new_name); + if (apply_data(patch, &st, ce) < 0) - return error("%s: patch does not apply", name); + return error(_("%s: patch does not apply"), name); patch->rejected = 0; return 0; } @@ -3159,11 +3802,12 @@ static int check_patch_list(struct patch *patch) { int err = 0; + prepare_symlink_changes(patch); prepare_fn_table(patch); while (patch) { if (apply_verbosely) say_patch_name(stderr, - "Checking patch ", patch, "...\n"); + _("Checking patch %s..."), patch); err |= check_patch(patch); patch = patch->next; } @@ -3184,18 +3828,51 @@ static int get_current_sha1(const char *path, unsigned char *sha1) return 0; } +static int preimage_sha1_in_gitlink_patch(struct patch *p, unsigned char sha1[20]) +{ + /* + * A usable gitlink patch has only one fragment (hunk) that looks like: + * @@ -1 +1 @@ + * -Subproject commit <old sha1> + * +Subproject commit <new sha1> + * or + * @@ -1 +0,0 @@ + * -Subproject commit <old sha1> + * for a removal patch. + */ + struct fragment *hunk = p->fragments; + static const char heading[] = "-Subproject commit "; + char *preimage; + + if (/* does the patch have only one hunk? */ + hunk && !hunk->next && + /* is its preimage one line? */ + hunk->oldpos == 1 && hunk->oldlines == 1 && + /* does preimage begin with the heading? */ + (preimage = memchr(hunk->patch, '\n', hunk->size)) != NULL && + starts_with(++preimage, heading) && + /* does it record full SHA-1? */ + !get_sha1_hex(preimage + sizeof(heading) - 1, sha1) && + preimage[sizeof(heading) + 40 - 1] == '\n' && + /* does the abbreviated name on the index line agree with it? */ + starts_with(preimage + sizeof(heading) - 1, p->old_sha1_prefix)) + return 0; /* it all looks fine */ + + /* we may have full object name on the index line */ + return get_sha1_hex(p->old_sha1_prefix, sha1); +} + /* Build an index that contains the just the files needed for a 3way merge */ static void build_fake_ancestor(struct patch *list, const char *filename) { struct patch *patch; struct index_state result = { NULL }; - int fd; + static struct lock_file lock; /* Once we start supporting the reverse patch, it may be * worth showing the new sha1 prefix, but until then... */ for (patch = list; patch; patch = patch->next) { - const unsigned char *sha1_ptr; unsigned char sha1[20]; struct cache_entry *ce; const char *name; @@ -3203,28 +3880,33 @@ static void build_fake_ancestor(struct patch *list, const char *filename) name = patch->old_name ? patch->old_name : patch->new_name; if (0 < patch->is_new) continue; - else if (get_sha1(patch->old_sha1_prefix, sha1)) - /* git diff has no index line for mode/type changes */ - if (!patch->lines_added && !patch->lines_deleted) { - if (get_current_sha1(patch->old_name, sha1)) - die("mode change for %s, which is not " - "in current HEAD", name); - sha1_ptr = sha1; - } else - die("sha1 information is lacking or useless " - "(%s).", name); - else - sha1_ptr = sha1; - ce = make_cache_entry(patch->old_mode, sha1_ptr, name, 0, 0); + if (S_ISGITLINK(patch->old_mode)) { + if (!preimage_sha1_in_gitlink_patch(patch, sha1)) + ; /* ok, the textual part looks sane */ + else + die("sha1 information is lacking or useless for submodule %s", + name); + } else if (!get_sha1_blob(patch->old_sha1_prefix, sha1)) { + ; /* ok */ + } else if (!patch->lines_added && !patch->lines_deleted) { + /* mode-only change: update the current */ + if (get_current_sha1(patch->old_name, sha1)) + die("mode change for %s, which is not " + "in current HEAD", name); + } else + die("sha1 information is lacking or useless " + "(%s).", name); + + ce = make_cache_entry(patch->old_mode, sha1, name, 0, 0); if (!ce) - die("make_cache_entry failed for path '%s'", name); + die(_("make_cache_entry failed for path '%s'"), name); if (add_index_entry(&result, ce, ADD_CACHE_OK_TO_ADD)) die ("Could not add %s to temporary index", name); } - fd = open(filename, O_WRONLY | O_CREAT, 0666); - if (fd < 0 || write_index(&result, fd) || close(fd)) + hold_lock_file_for_update(&lock, filename, LOCK_DIE_ON_ERROR); + if (write_locked_index(&result, &lock, COMMIT_LOCK)) die ("Could not write temporary index to %s", filename); discard_index(&result); @@ -3241,7 +3923,7 @@ static void stat_patch_list(struct patch *patch) show_stats(patch); } - printf(" %d files changed, %d insertions(+), %d deletions(-)\n", files, adds, dels); + print_stat_summary(stdout, files, adds, dels); } static void numstat_patch_list(struct patch *patch) @@ -3361,7 +4043,7 @@ static void remove_file(struct patch *patch, int rmdir_empty) { if (update_index) { if (remove_file_from_cache(patch->old_name) < 0) - die("unable to remove %s from index", patch->old_name); + die(_("unable to remove %s from index"), patch->old_name); } if (!cached) { if (!remove_or_warn(patch->old_mode, patch->old_name) && rmdir_empty) { @@ -3383,24 +4065,26 @@ static void add_index_file(const char *path, unsigned mode, void *buf, unsigned ce = xcalloc(1, ce_size); memcpy(ce->name, path, namelen); ce->ce_mode = create_ce_mode(mode); - ce->ce_flags = namelen; + ce->ce_flags = create_ce_flags(0); + ce->ce_namelen = namelen; if (S_ISGITLINK(mode)) { - const char *s = buf; + const char *s; - if (get_sha1_hex(s + strlen("Subproject commit "), ce->sha1)) - die("corrupt patch for subproject %s", path); + if (!skip_prefix(buf, "Subproject commit ", &s) || + get_sha1_hex(s, ce->sha1)) + die(_("corrupt patch for submodule %s"), path); } else { if (!cached) { if (lstat(path, &st) < 0) - die_errno("unable to stat newly created file '%s'", + die_errno(_("unable to stat newly created file '%s'"), path); fill_stat_cache_info(ce, &st); } if (write_sha1_file(buf, size, blob_type, ce->sha1) < 0) - die("unable to create backing store for newly created file %s", path); + die(_("unable to create backing store for newly created file %s"), path); } if (add_cache_entry(ce, ADD_CACHE_OK_TO_ADD) < 0) - die("unable to add cache entry for %s", path); + die(_("unable to add cache entry for %s"), path); } static int try_create_file(const char *path, unsigned int mode, const char *buf, unsigned long size) @@ -3433,7 +4117,7 @@ static int try_create_file(const char *path, unsigned int mode, const char *buf, strbuf_release(&nbuf); if (close(fd) < 0) - die_errno("closing file '%s'", path); + die_errno(_("closing file '%s'"), path); return 0; } @@ -3482,7 +4166,34 @@ static void create_one_file(char *path, unsigned mode, const char *buf, unsigned ++nr; } } - die_errno("unable to write file '%s' mode %o", path, mode); + die_errno(_("unable to write file '%s' mode %o"), path, mode); +} + +static void add_conflicted_stages_file(struct patch *patch) +{ + int stage, namelen; + unsigned ce_size, mode; + struct cache_entry *ce; + + if (!update_index) + return; + namelen = strlen(patch->new_name); + ce_size = cache_entry_size(namelen); + mode = patch->new_mode ? patch->new_mode : (S_IFREG | 0644); + + remove_file_from_cache(patch->new_name); + for (stage = 1; stage < 4; stage++) { + if (is_null_oid(&patch->threeway_stage[stage - 1])) + continue; + ce = xcalloc(1, ce_size); + memcpy(ce->name, patch->new_name, namelen); + ce->ce_mode = create_ce_mode(mode); + ce->ce_flags = create_ce_flags(stage); + ce->ce_namelen = namelen; + hashcpy(ce->sha1, patch->threeway_stage[stage - 1].hash); + if (add_cache_entry(ce, ADD_CACHE_OK_TO_ADD) < 0) + die(_("unable to add cache entry for %s"), patch->new_name); + } } static void create_file(struct patch *patch) @@ -3495,7 +4206,11 @@ static void create_file(struct patch *patch) if (!mode) mode = S_IFREG | 0644; create_one_file(path, mode, buf, size); - add_index_file(path, mode, buf, size); + + if (patch->conflicted_threeway) + add_conflicted_stages_file(patch); + else + add_index_file(path, mode, buf, size); } /* phase zero is to remove, phase one is to create */ @@ -3527,6 +4242,7 @@ static int write_out_one_reject(struct patch *patch) char namebuf[PATH_MAX]; struct fragment *frag; int cnt = 0; + struct strbuf sb = STRBUF_INIT; for (cnt = 0, frag = patch->fragments; frag; frag = frag->next) { if (!frag->rejected) @@ -3537,7 +4253,7 @@ static int write_out_one_reject(struct patch *patch) if (!cnt) { if (apply_verbosely) say_patch_name(stderr, - "Applied patch ", patch, " cleanly.\n"); + _("Applied patch %s cleanly."), patch); return 0; } @@ -3545,16 +4261,20 @@ static int write_out_one_reject(struct patch *patch) * contents are marked "rejected" at the patch level. */ if (!patch->new_name) - die("internal error"); + die(_("internal error")); /* Say this even without --verbose */ - say_patch_name(stderr, "Applying patch ", patch, " with"); - fprintf(stderr, " %d rejects...\n", cnt); + strbuf_addf(&sb, Q_("Applying patch %%s with %d reject...", + "Applying patch %%s with %d rejects...", + cnt), + cnt); + say_patch_name(stderr, sb.buf, patch); + strbuf_release(&sb); cnt = strlen(patch->new_name); if (ARRAY_SIZE(namebuf) <= cnt + 5) { cnt = ARRAY_SIZE(namebuf) - 5; - warning("truncating .rej filename to %.*s.rej", + warning(_("truncating .rej filename to %.*s.rej"), cnt - 1, patch->new_name); } memcpy(namebuf, patch->new_name, cnt); @@ -3562,10 +4282,10 @@ static int write_out_one_reject(struct patch *patch) rej = fopen(namebuf, "w"); if (!rej) - return error("cannot open %s: %s", namebuf, strerror(errno)); + return error(_("cannot open %s: %s"), namebuf, strerror(errno)); /* Normal git tools never deal with .rej, so do not pretend - * this is a git patch by saying --git nor give extended + * this is a git patch by saying --git or giving extended * headers. While at it, maybe please "kompare" that wants * the trailing TAB and some garbage at the end of line ;-). */ @@ -3575,10 +4295,10 @@ static int write_out_one_reject(struct patch *patch) frag; cnt++, frag = frag->next) { if (!frag->rejected) { - fprintf(stderr, "Hunk #%d applied cleanly.\n", cnt); + fprintf_ln(stderr, _("Hunk #%d applied cleanly."), cnt); continue; } - fprintf(stderr, "Rejected hunk #%d.\n", cnt); + fprintf_ln(stderr, _("Rejected hunk #%d."), cnt); fprintf(rej, "%.*s", frag->size, frag->patch); if (frag->patch[frag->size-1] != '\n') fputc('\n', rej); @@ -3592,6 +4312,7 @@ static int write_out_results(struct patch *list) int phase; int errs = 0; struct patch *l; + struct string_list cpath = STRING_LIST_INIT_DUP; for (phase = 0; phase < 2; phase++) { l = list; @@ -3600,81 +4321,34 @@ static int write_out_results(struct patch *list) errs = 1; else { write_out_one_result(l, phase); - if (phase == 1 && write_out_one_reject(l)) - errs = 1; + if (phase == 1) { + if (write_out_one_reject(l)) + errs = 1; + if (l->conflicted_threeway) { + string_list_append(&cpath, l->new_name); + errs = 1; + } + } } l = l->next; } } - return errs; -} - -static struct lock_file lock_file; - -static struct string_list limit_by_name; -static int has_include; -static void add_name_limit(const char *name, int exclude) -{ - struct string_list_item *it; - it = string_list_append(&limit_by_name, name); - it->util = exclude ? NULL : (void *) 1; -} - -static int use_patch(struct patch *p) -{ - const char *pathname = p->new_name ? p->new_name : p->old_name; - int i; + if (cpath.nr) { + struct string_list_item *item; - /* Paths outside are not touched regardless of "--include" */ - if (0 < prefix_length) { - int pathlen = strlen(pathname); - if (pathlen <= prefix_length || - memcmp(prefix, pathname, prefix_length)) - return 0; - } + string_list_sort(&cpath); + for_each_string_list_item(item, &cpath) + fprintf(stderr, "U %s\n", item->string); + string_list_clear(&cpath, 0); - /* See if it matches any of exclude/include rule */ - for (i = 0; i < limit_by_name.nr; i++) { - struct string_list_item *it = &limit_by_name.items[i]; - if (!fnmatch(it->string, pathname, 0)) - return (it->util != NULL); + rerere(0); } - /* - * If we had any include, a path that does not match any rule is - * not used. Otherwise, we saw bunch of exclude rules (or none) - * and such a path is used. - */ - return !has_include; -} - - -static void prefix_one(char **name) -{ - char *old_name = *name; - if (!old_name) - return; - *name = xstrdup(prefix_filename(prefix, prefix_length, *name)); - free(old_name); + return errs; } -static void prefix_patches(struct patch *p) -{ - if (!prefix || p->is_toplevel_relative) - return; - for ( ; p; p = p->next) { - if (p->new_name == p->old_name) { - char *prefixed = p->new_name; - prefix_one(&prefixed); - p->new_name = p->old_name = prefixed; - } - else { - prefix_one(&p->new_name); - prefix_one(&p->old_name); - } - } -} +static struct lock_file lock_file; #define INACCURATE_EOF (1<<0) #define RECOUNT (1<<1) @@ -3682,12 +4356,10 @@ static void prefix_patches(struct patch *p) static int apply_patch(int fd, const char *filename, int options) { size_t offset; - struct strbuf buf = STRBUF_INIT; + struct strbuf buf = STRBUF_INIT; /* owns the patch text */ struct patch *list = NULL, **listp = &list; int skipped_patch = 0; - /* FIXME - memory leak when using multiple patch files as inputs */ - memset(&fn_table, 0, sizeof(struct string_list)); patch_input_file = filename; read_patch_file(&buf, fd); offset = 0; @@ -3699,27 +4371,28 @@ static int apply_patch(int fd, const char *filename, int options) patch->inaccurate_eof = !!(options & INACCURATE_EOF); patch->recount = !!(options & RECOUNT); nr = parse_chunk(buf.buf + offset, buf.len - offset, patch); - if (nr < 0) + if (nr < 0) { + free_patch(patch); break; + } if (apply_in_reverse) reverse_patches(patch); - if (prefix) - prefix_patches(patch); if (use_patch(patch)) { patch_stats(patch); *listp = patch; listp = &patch->next; } else { - /* perhaps free it a bit better? */ - free(patch); + if (apply_verbosely) + say_patch_name(stderr, _("Skipped patch '%s'."), patch); + free_patch(patch); skipped_patch++; } offset += nr; } if (!list && !skipped_patch) - die("unrecognized input"); + die(_("unrecognized input")); if (whitespace_error && (ws_error_action == die_on_ws_error)) apply = 0; @@ -3730,7 +4403,7 @@ static int apply_patch(int fd, const char *filename, int options) if (check_index) { if (read_cache() < 0) - die("unable to read index file"); + die(_("unable to read index file")); } if ((check || apply) && @@ -3738,8 +4411,12 @@ static int apply_patch(int fd, const char *filename, int options) !apply_with_reject) exit(1); - if (apply && write_out_results(list)) - exit(1); + if (apply && write_out_results(list)) { + if (apply_with_reject) + exit(1); + /* with --3way, we still need to write the index out */ + return 1; + } if (fake_ancestor) build_fake_ancestor(list, fake_ancestor); @@ -3753,17 +4430,17 @@ static int apply_patch(int fd, const char *filename, int options) if (summary) summary_patch_list(list); + free_patch_list(list); strbuf_release(&buf); + string_list_clear(&fn_table, 0); return 0; } -static int git_apply_config(const char *var, const char *value, void *cb) +static void git_apply_config(void) { - if (!strcmp(var, "apply.whitespace")) - return git_config_string(&apply_default_whitespace, var, value); - else if (!strcmp(var, "apply.ignorewhitespace")) - return git_config_string(&apply_default_ignorewhitespace, var, value); - return git_default_config(var, value, cb); + git_config_get_string_const("apply.whitespace", &apply_default_whitespace); + git_config_get_string_const("apply.ignorewhitespace", &apply_default_ignorewhitespace); + git_config(git_default_config, NULL); } static int option_parse_exclude(const struct option *opt, @@ -3789,16 +4466,6 @@ static int option_parse_p(const struct option *opt, return 0; } -static int option_parse_z(const struct option *opt, - const char *arg, int unset) -{ - if (unset) - line_termination = '\n'; - else - line_termination = 0; - return 0; -} - static int option_parse_space_change(const struct option *opt, const char *arg, int unset) { @@ -3822,14 +4489,9 @@ static int option_parse_whitespace(const struct option *opt, static int option_parse_directory(const struct option *opt, const char *arg, int unset) { - root_len = strlen(arg); - if (root_len && arg[root_len - 1] != '/') { - char *new_root; - root = new_root = xmalloc(root_len + 2); - strcpy(new_root, arg); - strcpy(new_root + root_len++, "/"); - } else - root = arg; + strbuf_reset(&root); + strbuf_addstr(&root, arg); + strbuf_complete(&root, '/'); return 0; } @@ -3843,73 +4505,77 @@ int cmd_apply(int argc, const char **argv, const char *prefix_) const char *whitespace_option = NULL; struct option builtin_apply_options[] = { - { OPTION_CALLBACK, 0, "exclude", NULL, "path", - "don't apply changes matching the given path", + { OPTION_CALLBACK, 0, "exclude", NULL, N_("path"), + N_("don't apply changes matching the given path"), 0, option_parse_exclude }, - { OPTION_CALLBACK, 0, "include", NULL, "path", - "apply changes matching the given path", + { OPTION_CALLBACK, 0, "include", NULL, N_("path"), + N_("apply changes matching the given path"), 0, option_parse_include }, - { OPTION_CALLBACK, 'p', NULL, NULL, "num", - "remove <num> leading slashes from traditional diff paths", + { OPTION_CALLBACK, 'p', NULL, NULL, N_("num"), + N_("remove <num> leading slashes from traditional diff paths"), 0, option_parse_p }, - OPT_BOOLEAN(0, "no-add", &no_add, - "ignore additions made by the patch"), - OPT_BOOLEAN(0, "stat", &diffstat, - "instead of applying the patch, output diffstat for the input"), + OPT_BOOL(0, "no-add", &no_add, + N_("ignore additions made by the patch")), + OPT_BOOL(0, "stat", &diffstat, + N_("instead of applying the patch, output diffstat for the input")), OPT_NOOP_NOARG(0, "allow-binary-replacement"), OPT_NOOP_NOARG(0, "binary"), - OPT_BOOLEAN(0, "numstat", &numstat, - "shows number of added and deleted lines in decimal notation"), - OPT_BOOLEAN(0, "summary", &summary, - "instead of applying the patch, output a summary for the input"), - OPT_BOOLEAN(0, "check", &check, - "instead of applying the patch, see if the patch is applicable"), - OPT_BOOLEAN(0, "index", &check_index, - "make sure the patch is applicable to the current index"), - OPT_BOOLEAN(0, "cached", &cached, - "apply a patch without touching the working tree"), - OPT_BOOLEAN(0, "apply", &force_apply, - "also apply the patch (use with --stat/--summary/--check)"), + OPT_BOOL(0, "numstat", &numstat, + N_("show number of added and deleted lines in decimal notation")), + OPT_BOOL(0, "summary", &summary, + N_("instead of applying the patch, output a summary for the input")), + OPT_BOOL(0, "check", &check, + N_("instead of applying the patch, see if the patch is applicable")), + OPT_BOOL(0, "index", &check_index, + N_("make sure the patch is applicable to the current index")), + OPT_BOOL(0, "cached", &cached, + N_("apply a patch without touching the working tree")), + OPT_BOOL(0, "unsafe-paths", &unsafe_paths, + N_("accept a patch that touches outside the working area")), + OPT_BOOL(0, "apply", &force_apply, + N_("also apply the patch (use with --stat/--summary/--check)")), + OPT_BOOL('3', "3way", &threeway, + N_( "attempt three-way merge if a patch does not apply")), OPT_FILENAME(0, "build-fake-ancestor", &fake_ancestor, - "build a temporary index based on embedded index information"), - { OPTION_CALLBACK, 'z', NULL, NULL, NULL, - "paths are separated with NUL character", - PARSE_OPT_NOARG, option_parse_z }, + N_("build a temporary index based on embedded index information")), + /* Think twice before adding "--nul" synonym to this */ + OPT_SET_INT('z', NULL, &line_termination, + N_("paths are separated with NUL character"), '\0'), OPT_INTEGER('C', NULL, &p_context, - "ensure at least <n> lines of context match"), - { OPTION_CALLBACK, 0, "whitespace", &whitespace_option, "action", - "detect new or modified lines that have whitespace errors", + N_("ensure at least <n> lines of context match")), + { OPTION_CALLBACK, 0, "whitespace", &whitespace_option, N_("action"), + N_("detect new or modified lines that have whitespace errors"), 0, option_parse_whitespace }, { OPTION_CALLBACK, 0, "ignore-space-change", NULL, NULL, - "ignore changes in whitespace when finding context", + N_("ignore changes in whitespace when finding context"), PARSE_OPT_NOARG, option_parse_space_change }, { OPTION_CALLBACK, 0, "ignore-whitespace", NULL, NULL, - "ignore changes in whitespace when finding context", + N_("ignore changes in whitespace when finding context"), PARSE_OPT_NOARG, option_parse_space_change }, - OPT_BOOLEAN('R', "reverse", &apply_in_reverse, - "apply the patch in reverse"), - OPT_BOOLEAN(0, "unidiff-zero", &unidiff_zero, - "don't expect at least one line of context"), - OPT_BOOLEAN(0, "reject", &apply_with_reject, - "leave the rejected hunks in corresponding *.rej files"), - OPT_BOOLEAN(0, "allow-overlap", &allow_overlap, - "allow overlapping hunks"), - OPT__VERBOSE(&apply_verbosely, "be verbose"), + OPT_BOOL('R', "reverse", &apply_in_reverse, + N_("apply the patch in reverse")), + OPT_BOOL(0, "unidiff-zero", &unidiff_zero, + N_("don't expect at least one line of context")), + OPT_BOOL(0, "reject", &apply_with_reject, + N_("leave the rejected hunks in corresponding *.rej files")), + OPT_BOOL(0, "allow-overlap", &allow_overlap, + N_("allow overlapping hunks")), + OPT__VERBOSE(&apply_verbosely, N_("be verbose")), OPT_BIT(0, "inaccurate-eof", &options, - "tolerate incorrectly detected missing new-line at the end of file", + N_("tolerate incorrectly detected missing new-line at the end of file"), INACCURATE_EOF), OPT_BIT(0, "recount", &options, - "do not trust the line counts in the hunk headers", + N_("do not trust the line counts in the hunk headers"), RECOUNT), - { OPTION_CALLBACK, 0, "directory", NULL, "root", - "prepend <root> to all filenames", + { OPTION_CALLBACK, 0, "directory", NULL, N_("root"), + N_("prepend <root> to all filenames"), 0, option_parse_directory }, OPT_END() }; prefix = prefix_; prefix_length = prefix ? strlen(prefix) : 0; - git_config(git_apply_config, NULL); + git_apply_config(); if (apply_default_whitespace) parse_whitespace_option(apply_default_whitespace); if (apply_default_ignorewhitespace) @@ -3918,17 +4584,29 @@ int cmd_apply(int argc, const char **argv, const char *prefix_) argc = parse_options(argc, argv, prefix, builtin_apply_options, apply_usage, 0); + if (apply_with_reject && threeway) + die("--reject and --3way cannot be used together."); + if (cached && threeway) + die("--cached and --3way cannot be used together."); + if (threeway) { + if (is_not_gitdir) + die(_("--3way outside a repository")); + check_index = 1; + } if (apply_with_reject) apply = apply_verbosely = 1; if (!force_apply && (diffstat || numstat || summary || check || fake_ancestor)) apply = 0; if (check_index && is_not_gitdir) - die("--index outside a repository"); + die(_("--index outside a repository")); if (cached) { if (is_not_gitdir) - die("--cached outside a repository"); + die(_("--cached outside a repository")); check_index = 1; } + if (check_index) + unsafe_paths = 0; + for (i = 0; i < argc; i++) { const char *arg = argv[i]; int fd; @@ -3942,7 +4620,7 @@ int cmd_apply(int argc, const char **argv, const char *prefix_) fd = open(arg, O_RDONLY); if (fd < 0) - die_errno("can't open patch '%s'", arg); + die_errno(_("can't open patch '%s'"), arg); read_stdin = 0; set_default_whitespace_mode(whitespace_option); errs |= apply_patch(fd, arg, options); @@ -3956,32 +4634,31 @@ int cmd_apply(int argc, const char **argv, const char *prefix_) squelch_whitespace_errors < whitespace_error) { int squelched = whitespace_error - squelch_whitespace_errors; - warning("squelched %d " - "whitespace error%s", - squelched, - squelched == 1 ? "" : "s"); + warning(Q_("squelched %d whitespace error", + "squelched %d whitespace errors", + squelched), + squelched); } if (ws_error_action == die_on_ws_error) - die("%d line%s add%s whitespace errors.", - whitespace_error, - whitespace_error == 1 ? "" : "s", - whitespace_error == 1 ? "s" : ""); + die(Q_("%d line adds whitespace errors.", + "%d lines add whitespace errors.", + whitespace_error), + whitespace_error); if (applied_after_fixing_ws && apply) warning("%d line%s applied after" " fixing whitespace errors.", applied_after_fixing_ws, applied_after_fixing_ws == 1 ? "" : "s"); else if (whitespace_error) - warning("%d line%s add%s whitespace errors.", - whitespace_error, - whitespace_error == 1 ? "" : "s", - whitespace_error == 1 ? "s" : ""); + warning(Q_("%d line adds whitespace errors.", + "%d lines add whitespace errors.", + whitespace_error), + whitespace_error); } if (update_index) { - if (write_cache(newfd, active_cache, active_nr) || - commit_locked_index(&lock_file)) - die("Unable to write new index file"); + if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK)) + die(_("Unable to write new index file")); } return !!errs; diff --git a/builtin/archive.c b/builtin/archive.c index 931956def9..a1e3b940c2 100644 --- a/builtin/archive.c +++ b/builtin/archive.c @@ -27,8 +27,8 @@ static int run_remote_archiver(int argc, const char **argv, const char *remote, const char *exec, const char *name_hint) { - char buf[LARGE_PACKET_MAX]; - int fd[2], i, len, rv; + char *buf; + int fd[2], i, rv; struct transport *transport; struct remote *_remote; @@ -53,21 +53,18 @@ static int run_remote_archiver(int argc, const char **argv, packet_write(fd[1], "argument %s\n", argv[i]); packet_flush(fd[1]); - len = packet_read_line(fd[0], buf, sizeof(buf)); - if (!len) + buf = packet_read_line(fd[0], NULL); + if (!buf) die(_("git archive: expected ACK/NAK, got EOF")); - if (buf[len-1] == '\n') - buf[--len] = 0; if (strcmp(buf, "ACK")) { - if (len > 5 && !prefixcmp(buf, "NACK ")) + if (starts_with(buf, "NACK ")) die(_("git archive: NACK %s"), buf + 5); - if (len > 4 && !prefixcmp(buf, "ERR ")) + if (starts_with(buf, "ERR ")) die(_("remote error: %s"), buf + 4); die(_("git archive: protocol error")); } - len = packet_read_line(fd[0], buf, sizeof(buf)); - if (len) + if (packet_read_line(fd[0], NULL)) die(_("git archive: expected a flush")); /* Now, start reading from fd[0] and spit it out to stdout */ @@ -88,12 +85,12 @@ int cmd_archive(int argc, const char **argv, const char *prefix) const char *output = NULL; const char *remote = NULL; struct option local_opts[] = { - OPT_STRING('o', "output", &output, "file", - "write the archive to this file"), - OPT_STRING(0, "remote", &remote, "repo", - "retrieve the archive from remote repository <repo>"), - OPT_STRING(0, "exec", &exec, "cmd", - "path to the remote git-upload-archive command"), + OPT_STRING('o', "output", &output, N_("file"), + N_("write the archive to this file")), + OPT_STRING(0, "remote", &remote, N_("repo"), + N_("retrieve the archive from remote repository <repo>")), + OPT_STRING(0, "exec", &exec, N_("command"), + N_("path to the remote git-upload-archive command")), OPT_END() }; diff --git a/builtin/bisect--helper.c b/builtin/bisect--helper.c index 8d325a5179..3324229025 100644 --- a/builtin/bisect--helper.c +++ b/builtin/bisect--helper.c @@ -4,7 +4,7 @@ #include "bisect.h" static const char * const git_bisect_helper_usage[] = { - "git bisect--helper --next-all [--no-checkout]", + N_("git bisect--helper --next-all [--no-checkout]"), NULL }; @@ -13,10 +13,10 @@ int cmd_bisect__helper(int argc, const char **argv, const char *prefix) int next_all = 0; int no_checkout = 0; struct option options[] = { - OPT_BOOLEAN(0, "next-all", &next_all, - "perform 'git bisect next'"), - OPT_BOOLEAN(0, "no-checkout", &no_checkout, - "update BISECT_HEAD instead of checking out the current commit"), + OPT_BOOL(0, "next-all", &next_all, + N_("perform 'git bisect next'")), + OPT_BOOL(0, "no-checkout", &no_checkout, + N_("update BISECT_HEAD instead of checking out the current commit")), OPT_END() }; diff --git a/builtin/blame.c b/builtin/blame.c index 5a67c202f0..7417edf6ef 100644 --- a/builtin/blame.c +++ b/builtin/blame.c @@ -1,10 +1,12 @@ /* * Blame * - * Copyright (c) 2006, Junio C Hamano + * Copyright (c) 2006, 2014 by its authors + * See COPYING for licensing conditions */ #include "cache.h" +#include "refs.h" #include "builtin.h" #include "blob.h" #include "commit.h" @@ -18,16 +20,22 @@ #include "cache-tree.h" #include "string-list.h" #include "mailmap.h" +#include "mergesort.h" #include "parse-options.h" +#include "prio-queue.h" #include "utf8.h" #include "userdiff.h" +#include "line-range.h" +#include "line-log.h" +#include "dir.h" +#include "progress.h" -static char blame_usage[] = "git blame [options] [rev-opts] [rev] [--] file"; +static char blame_usage[] = N_("git blame [<options>] [<rev-opts>] [<rev>] [--] <file>"); static const char *blame_opt_usage[] = { blame_usage, "", - "[rev-opts] are documented in git-rev-list(1)", + N_("<rev-opts> are documented in git-rev-list(1)"), NULL }; @@ -42,8 +50,10 @@ static int blank_boundary; static int incremental; static int xdl_opts; static int abbrev = -1; +static int no_whole_file_rename; +static int show_progress; -static enum date_mode blame_date_mode = DATE_ISO8601; +static struct date_mode blame_date_mode = { DATE_ISO8601 }; static size_t blame_date_width; static struct string_list mailmap; @@ -71,7 +81,7 @@ static unsigned blame_copy_score; #define BLAME_DEFAULT_MOVE_SCORE 20 #define BLAME_DEFAULT_COPY_SCORE 40 -/* bits #0..7 in revision.h, #8..11 used for merge_bases() in commit.c */ +/* Remember to update object flag allocation in object.h */ #define METAINFO_SHOWN (1u<<12) #define MORE_THAN_ONE_PATH (1u<<13) @@ -80,14 +90,64 @@ static unsigned blame_copy_score; */ struct origin { int refcnt; + /* Record preceding blame record for this blob */ struct origin *previous; + /* origins are put in a list linked via `next' hanging off the + * corresponding commit's util field in order to make finding + * them fast. The presence in this chain does not count + * towards the origin's reference count. It is tempting to + * let it count as long as the commit is pending examination, + * but even under circumstances where the commit will be + * present multiple times in the priority queue of unexamined + * commits, processing the first instance will not leave any + * work requiring the origin data for the second instance. An + * interspersed commit changing that would have to be + * preexisting with a different ancestry and with the same + * commit date in order to wedge itself between two instances + * of the same commit in the priority queue _and_ produce + * blame entries relevant for it. While we don't want to let + * us get tripped up by this case, it certainly does not seem + * worth optimizing for. + */ + struct origin *next; struct commit *commit; + /* `suspects' contains blame entries that may be attributed to + * this origin's commit or to parent commits. When a commit + * is being processed, all suspects will be moved, either by + * assigning them to an origin in a different commit, or by + * shipping them to the scoreboard's ent list because they + * cannot be attributed to a different commit. + */ + struct blame_entry *suspects; mmfile_t file; unsigned char blob_sha1[20]; unsigned mode; + /* guilty gets set when shipping any suspects to the final + * blame list instead of other commits + */ + char guilty; char path[FLEX_ARRAY]; }; +struct progress_info { + struct progress *progress; + int blamed_lines; +}; + +static int diff_hunks(mmfile_t *file_a, mmfile_t *file_b, long ctxlen, + xdl_emit_hunk_consume_func_t hunk_func, void *cb_data) +{ + xpparam_t xpp = {0}; + xdemitconf_t xecfg = {0}; + xdemitcb_t ecb = {NULL}; + + xpp.flags = xdl_opts; + xecfg.ctxlen = ctxlen; + xecfg.hunk_func = hunk_func; + ecb.priv = cb_data; + return xdi_diff(file_a, file_b, &xpp, &xecfg, &ecb); +} + /* * Prepare diff_filespec and convert it using diff textconv API * if the textconv driver exists. @@ -96,6 +156,7 @@ struct origin { int textconv_object(const char *path, unsigned mode, const unsigned char *sha1, + int sha1_valid, char **buf, unsigned long *buf_size) { @@ -103,7 +164,7 @@ int textconv_object(const char *path, struct userdiff_driver *textconv; df = alloc_filespec(path); - fill_filespec(df, sha1, mode); + fill_filespec(df, sha1, sha1_valid, mode); textconv = get_textconv(df); if (!textconv) { free_filespec(df); @@ -128,7 +189,7 @@ static void fill_origin_blob(struct diff_options *opt, num_read_blob++; if (DIFF_OPT_TST(opt, ALLOW_TEXTCONV) && - textconv_object(o->path, o->mode, o->blob_sha1, &file->ptr, &file_size)) + textconv_object(o->path, o->mode, o->blob_sha1, 1, &file->ptr, &file_size)) ; else file->ptr = read_sha1_file(o->blob_sha1, &type, &file_size); @@ -158,10 +219,22 @@ static inline struct origin *origin_incref(struct origin *o) static void origin_decref(struct origin *o) { if (o && --o->refcnt <= 0) { + struct origin *p, *l = NULL; if (o->previous) origin_decref(o->previous); free(o->file.ptr); - free(o); + /* Should be present exactly once in commit chain */ + for (p = o->commit->util; p; l = p, p = p->next) { + if (p == o) { + if (l) + l->next = p->next; + else + o->commit->util = p->next; + free(o); + return; + } + } + die("internal error in blame::origin_decref"); } } @@ -175,11 +248,14 @@ static void drop_origin_blob(struct origin *o) /* * Each group of lines is described by a blame_entry; it can be split - * as we pass blame to the parents. They form a linked list in the - * scoreboard structure, sorted by the target line number. + * as we pass blame to the parents. They are arranged in linked lists + * kept as `suspects' of some unprocessed origin, or entered (when the + * blame origin has been finalized) into the scoreboard structure. + * While the scoreboard structure is only sorted at the end of + * processing (according to final image line number), the lists + * attached to an origin are sorted by the target line number. */ struct blame_entry { - struct blame_entry *prev; struct blame_entry *next; /* the first line of this group in the final image; @@ -193,15 +269,6 @@ struct blame_entry { /* the commit that introduced this group into the final image */ struct origin *suspect; - /* true if the suspect is truly guilty; false while we have not - * checked if the group came from one of its parents. - */ - char guilty; - - /* true if the entry has been scanned for copies in the current parent - */ - char scanned; - /* the line number of the first line of this group in the * suspect's file; internally all line numbers are 0 based. */ @@ -214,11 +281,112 @@ struct blame_entry { }; /* + * Any merge of blames happens on lists of blames that arrived via + * different parents in a single suspect. In this case, we want to + * sort according to the suspect line numbers as opposed to the final + * image line numbers. The function body is somewhat longish because + * it avoids unnecessary writes. + */ + +static struct blame_entry *blame_merge(struct blame_entry *list1, + struct blame_entry *list2) +{ + struct blame_entry *p1 = list1, *p2 = list2, + **tail = &list1; + + if (!p1) + return p2; + if (!p2) + return p1; + + if (p1->s_lno <= p2->s_lno) { + do { + tail = &p1->next; + if ((p1 = *tail) == NULL) { + *tail = p2; + return list1; + } + } while (p1->s_lno <= p2->s_lno); + } + for (;;) { + *tail = p2; + do { + tail = &p2->next; + if ((p2 = *tail) == NULL) { + *tail = p1; + return list1; + } + } while (p1->s_lno > p2->s_lno); + *tail = p1; + do { + tail = &p1->next; + if ((p1 = *tail) == NULL) { + *tail = p2; + return list1; + } + } while (p1->s_lno <= p2->s_lno); + } +} + +static void *get_next_blame(const void *p) +{ + return ((struct blame_entry *)p)->next; +} + +static void set_next_blame(void *p1, void *p2) +{ + ((struct blame_entry *)p1)->next = p2; +} + +/* + * Final image line numbers are all different, so we don't need a + * three-way comparison here. + */ + +static int compare_blame_final(const void *p1, const void *p2) +{ + return ((struct blame_entry *)p1)->lno > ((struct blame_entry *)p2)->lno + ? 1 : -1; +} + +static int compare_blame_suspect(const void *p1, const void *p2) +{ + const struct blame_entry *s1 = p1, *s2 = p2; + /* + * to allow for collating suspects, we sort according to the + * respective pointer value as the primary sorting criterion. + * The actual relation is pretty unimportant as long as it + * establishes a total order. Comparing as integers gives us + * that. + */ + if (s1->suspect != s2->suspect) + return (intptr_t)s1->suspect > (intptr_t)s2->suspect ? 1 : -1; + if (s1->s_lno == s2->s_lno) + return 0; + return s1->s_lno > s2->s_lno ? 1 : -1; +} + +static struct blame_entry *blame_sort(struct blame_entry *head, + int (*compare_fn)(const void *, const void *)) +{ + return llist_mergesort (head, get_next_blame, set_next_blame, compare_fn); +} + +static int compare_commits_by_reverse_commit_date(const void *a, + const void *b, + void *c) +{ + return -compare_commits_by_commit_date(a, b, c); +} + +/* * The current state of the blame assignment. */ struct scoreboard { /* the final commit (i.e. where we started digging from) */ struct commit *final; + /* Priority queue for commits with unassigned blame records */ + struct prio_queue commits; struct rev_info *revs; const char *path; @@ -238,15 +406,6 @@ struct scoreboard { int *lineno; }; -static inline int same_suspect(struct origin *a, struct origin *b) -{ - if (a == b) - return 1; - if (a->commit != b->commit) - return 0; - return !strcmp(a->path, b->path); -} - static void sanity_check_refcnt(struct scoreboard *); /* @@ -259,13 +418,10 @@ static void coalesce(struct scoreboard *sb) struct blame_entry *ent, *next; for (ent = sb->ent; ent && (next = ent->next); ent = next) { - if (same_suspect(ent->suspect, next->suspect) && - ent->guilty == next->guilty && + if (ent->suspect == next->suspect && ent->s_lno + ent->num_lines == next->s_lno) { ent->num_lines += next->num_lines; ent->next = next->next; - if (ent->next) - ent->next->prev = ent; origin_decref(next->suspect); free(next); ent->score = 0; @@ -278,6 +434,30 @@ static void coalesce(struct scoreboard *sb) } /* + * Merge the given sorted list of blames into a preexisting origin. + * If there were no previous blames to that commit, it is entered into + * the commit priority queue of the score board. + */ + +static void queue_blames(struct scoreboard *sb, struct origin *porigin, + struct blame_entry *sorted) +{ + if (porigin->suspects) + porigin->suspects = blame_merge(porigin->suspects, sorted); + else { + struct origin *o; + for (o = porigin->commit->util; o; o = o->next) { + if (o->suspects) { + porigin->suspects = sorted; + return; + } + } + porigin->suspects = sorted; + prio_queue_put(&sb->commits, porigin->commit); + } +} + +/* * Given a commit and a path in it, create a new origin structure. * The callers that add blame to the scoreboard should use * get_origin() to obtain shared, refcounted copy instead of calling @@ -286,26 +466,34 @@ static void coalesce(struct scoreboard *sb) static struct origin *make_origin(struct commit *commit, const char *path) { struct origin *o; - o = xcalloc(1, sizeof(*o) + strlen(path) + 1); + FLEX_ALLOC_STR(o, path, path); o->commit = commit; o->refcnt = 1; - strcpy(o->path, path); + o->next = commit->util; + commit->util = o; return o; } /* * Locate an existing origin or create a new one. + * This moves the origin to front position in the commit util list. */ static struct origin *get_origin(struct scoreboard *sb, struct commit *commit, const char *path) { - struct blame_entry *e; + struct origin *o, *l; - for (e = sb->ent; e; e = e->next) { - if (e->suspect->commit == commit && - !strcmp(e->suspect->path, path)) - return origin_incref(e->suspect); + for (o = commit->util, l = NULL; o; l = o, o = o->next) { + if (!strcmp(o->path, path)) { + /* bump to front */ + if (l) { + l->next = o->next; + o->next = commit->util; + commit->util = o; + } + return origin_incref(o); + } } return make_origin(commit, path); } @@ -323,7 +511,7 @@ static int fill_blob_sha1_and_mode(struct origin *origin) { if (!is_null_sha1(origin->blob_sha1)) return 0; - if (get_tree_entry(origin->commit->object.sha1, + if (get_tree_entry(origin->commit->object.oid.hash, origin->path, origin->blob_sha1, &origin->mode)) goto error_out; @@ -344,41 +532,19 @@ static struct origin *find_origin(struct scoreboard *sb, struct commit *parent, struct origin *origin) { - struct origin *porigin = NULL; + struct origin *porigin; struct diff_options diff_opts; const char *paths[2]; - if (parent->util) { - /* - * Each commit object can cache one origin in that - * commit. This is a freestanding copy of origin and - * not refcounted. - */ - struct origin *cached = parent->util; - if (!strcmp(cached->path, origin->path)) { + /* First check any existing origins */ + for (porigin = parent->util; porigin; porigin = porigin->next) + if (!strcmp(porigin->path, origin->path)) { /* * The same path between origin and its parent * without renaming -- the most common case. */ - porigin = get_origin(sb, parent, cached->path); - - /* - * If the origin was newly created (i.e. get_origin - * would call make_origin if none is found in the - * scoreboard), it does not know the blob_sha1/mode, - * so copy it. Otherwise porigin was in the - * scoreboard and already knows blob_sha1/mode. - */ - if (porigin->refcnt == 1) { - hashcpy(porigin->blob_sha1, cached->blob_sha1); - porigin->mode = cached->mode; - } - return porigin; + return origin_incref (porigin); } - /* otherwise it was not very useful; free it */ - free(parent->util); - parent->util = NULL; - } /* See if the origin->path is different between parent * and origin first. Most of the time they are the @@ -391,15 +557,16 @@ static struct origin *find_origin(struct scoreboard *sb, paths[0] = origin->path; paths[1] = NULL; - diff_tree_setup_paths(paths, &diff_opts); - if (diff_setup_done(&diff_opts) < 0) - die("diff-setup"); + parse_pathspec(&diff_opts.pathspec, + PATHSPEC_ALL_MAGIC & ~PATHSPEC_LITERAL, + PATHSPEC_LITERAL_PATH, "", paths); + diff_setup_done(&diff_opts); - if (is_null_sha1(origin->commit->object.sha1)) - do_diff_cache(parent->tree->object.sha1, &diff_opts); + if (is_null_oid(&origin->commit->object.oid)) + do_diff_cache(parent->tree->object.oid.hash, &diff_opts); else - diff_tree_sha1(parent->tree->object.sha1, - origin->commit->tree->object.sha1, + diff_tree_sha1(parent->tree->object.oid.hash, + origin->commit->tree->object.oid.hash, "", &diff_opts); diffcore_std(&diff_opts); @@ -442,20 +609,7 @@ static struct origin *find_origin(struct scoreboard *sb, } } diff_flush(&diff_opts); - diff_tree_release_paths(&diff_opts); - if (porigin) { - /* - * Create a freestanding copy that is not part of - * the refcounted origin found in the scoreboard, and - * cache it in the commit. - */ - struct origin *cached; - - cached = make_origin(porigin->commit, porigin->path); - hashcpy(cached->blob_sha1, porigin->blob_sha1); - cached->mode = porigin->mode; - parent->util = cached; - } + free_pathspec(&diff_opts.pathspec); return porigin; } @@ -470,23 +624,19 @@ static struct origin *find_rename(struct scoreboard *sb, struct origin *porigin = NULL; struct diff_options diff_opts; int i; - const char *paths[2]; diff_setup(&diff_opts); DIFF_OPT_SET(&diff_opts, RECURSIVE); diff_opts.detect_rename = DIFF_DETECT_RENAME; diff_opts.output_format = DIFF_FORMAT_NO_OUTPUT; diff_opts.single_follow = origin->path; - paths[0] = NULL; - diff_tree_setup_paths(paths, &diff_opts); - if (diff_setup_done(&diff_opts) < 0) - die("diff-setup"); + diff_setup_done(&diff_opts); - if (is_null_sha1(origin->commit->object.sha1)) - do_diff_cache(parent->tree->object.sha1, &diff_opts); + if (is_null_oid(&origin->commit->object.oid)) + do_diff_cache(parent->tree->object.oid.hash, &diff_opts); else - diff_tree_sha1(parent->tree->object.sha1, - origin->commit->tree->object.sha1, + diff_tree_sha1(parent->tree->object.oid.hash, + origin->commit->tree->object.oid.hash, "", &diff_opts); diffcore_std(&diff_opts); @@ -501,62 +651,48 @@ static struct origin *find_rename(struct scoreboard *sb, } } diff_flush(&diff_opts); - diff_tree_release_paths(&diff_opts); + free_pathspec(&diff_opts.pathspec); return porigin; } /* - * Link in a new blame entry to the scoreboard. Entries that cover the - * same line range have been removed from the scoreboard previously. + * Append a new blame entry to a given output queue. */ -static void add_blame_entry(struct scoreboard *sb, struct blame_entry *e) +static void add_blame_entry(struct blame_entry ***queue, struct blame_entry *e) { - struct blame_entry *ent, *prev = NULL; - origin_incref(e->suspect); - for (ent = sb->ent; ent && ent->lno < e->lno; ent = ent->next) - prev = ent; - - /* prev, if not NULL, is the last one that is below e */ - e->prev = prev; - if (prev) { - e->next = prev->next; - prev->next = e; - } - else { - e->next = sb->ent; - sb->ent = e; - } - if (e->next) - e->next->prev = e; + e->next = **queue; + **queue = e; + *queue = &e->next; } /* * src typically is on-stack; we want to copy the information in it to - * a malloced blame_entry that is already on the linked list of the - * scoreboard. The origin of dst loses a refcnt while the origin of src - * gains one. + * a malloced blame_entry that gets added to the given queue. The + * origin of dst loses a refcnt. */ -static void dup_entry(struct blame_entry *dst, struct blame_entry *src) +static void dup_entry(struct blame_entry ***queue, + struct blame_entry *dst, struct blame_entry *src) { - struct blame_entry *p, *n; - - p = dst->prev; - n = dst->next; origin_incref(src->suspect); origin_decref(dst->suspect); memcpy(dst, src, sizeof(*src)); - dst->prev = p; - dst->next = n; - dst->score = 0; + dst->next = **queue; + **queue = dst; + *queue = &dst->next; } -static const char *nth_line(struct scoreboard *sb, int lno) +static const char *nth_line(struct scoreboard *sb, long lno) { return sb->final_buf + sb->lineno[lno]; } +static const char *nth_line_cb(void *data, long lno) +{ + return nth_line((struct scoreboard *)data, lno); +} + /* * It is known that lines between tlno to same came from parent, and e * has an overlap with that range. it also is known that parent's @@ -616,10 +752,11 @@ static void split_overlap(struct blame_entry *split, /* * split_overlap() divided an existing blame e into up to three parts - * in split. Adjust the linked list of blames in the scoreboard to + * in split. Any assigned blame is moved to queue to * reflect the split. */ -static void split_blame(struct scoreboard *sb, +static void split_blame(struct blame_entry ***blamed, + struct blame_entry ***unblamed, struct blame_entry *split, struct blame_entry *e) { @@ -627,61 +764,39 @@ static void split_blame(struct scoreboard *sb, if (split[0].suspect && split[2].suspect) { /* The first part (reuse storage for the existing entry e) */ - dup_entry(e, &split[0]); + dup_entry(unblamed, e, &split[0]); /* The last part -- me */ new_entry = xmalloc(sizeof(*new_entry)); memcpy(new_entry, &(split[2]), sizeof(struct blame_entry)); - add_blame_entry(sb, new_entry); + add_blame_entry(unblamed, new_entry); /* ... and the middle part -- parent */ new_entry = xmalloc(sizeof(*new_entry)); memcpy(new_entry, &(split[1]), sizeof(struct blame_entry)); - add_blame_entry(sb, new_entry); + add_blame_entry(blamed, new_entry); } else if (!split[0].suspect && !split[2].suspect) /* * The parent covers the entire area; reuse storage for * e and replace it with the parent. */ - dup_entry(e, &split[1]); + dup_entry(blamed, e, &split[1]); else if (split[0].suspect) { /* me and then parent */ - dup_entry(e, &split[0]); + dup_entry(unblamed, e, &split[0]); new_entry = xmalloc(sizeof(*new_entry)); memcpy(new_entry, &(split[1]), sizeof(struct blame_entry)); - add_blame_entry(sb, new_entry); + add_blame_entry(blamed, new_entry); } else { /* parent and then me */ - dup_entry(e, &split[1]); + dup_entry(blamed, e, &split[1]); new_entry = xmalloc(sizeof(*new_entry)); memcpy(new_entry, &(split[2]), sizeof(struct blame_entry)); - add_blame_entry(sb, new_entry); - } - - if (DEBUG) { /* sanity */ - struct blame_entry *ent; - int lno = sb->ent->lno, corrupt = 0; - - for (ent = sb->ent; ent; ent = ent->next) { - if (lno != ent->lno) - corrupt = 1; - if (ent->s_lno < 0) - corrupt = 1; - lno += ent->num_lines; - } - if (corrupt) { - lno = sb->ent->lno; - for (ent = sb->ent; ent; ent = ent->next) { - printf("L %8d l %8d n %8d\n", - lno, ent->lno, ent->num_lines); - lno = ent->lno + ent->num_lines; - } - die("oops"); - } + add_blame_entry(unblamed, new_entry); } } @@ -698,73 +813,147 @@ static void decref_split(struct blame_entry *split) } /* - * Helper for blame_chunk(). blame_entry e is known to overlap with - * the patch hunk; split it and pass blame to the parent. + * reverse_blame reverses the list given in head, appending tail. + * That allows us to build lists in reverse order, then reverse them + * afterwards. This can be faster than building the list in proper + * order right away. The reason is that building in proper order + * requires writing a link in the _previous_ element, while building + * in reverse order just requires placing the list head into the + * _current_ element. */ -static void blame_overlap(struct scoreboard *sb, struct blame_entry *e, - int tlno, int plno, int same, - struct origin *parent) -{ - struct blame_entry split[3]; - split_overlap(split, e, tlno, plno, same, parent); - if (split[1].suspect) - split_blame(sb, split, e); - decref_split(split); -} - -/* - * Find the line number of the last line the target is suspected for. - */ -static int find_last_in_target(struct scoreboard *sb, struct origin *target) +static struct blame_entry *reverse_blame(struct blame_entry *head, + struct blame_entry *tail) { - struct blame_entry *e; - int last_in_target = -1; - - for (e = sb->ent; e; e = e->next) { - if (e->guilty || !same_suspect(e->suspect, target)) - continue; - if (last_in_target < e->s_lno + e->num_lines) - last_in_target = e->s_lno + e->num_lines; + while (head) { + struct blame_entry *next = head->next; + head->next = tail; + tail = head; + head = next; } - return last_in_target; + return tail; } /* * Process one hunk from the patch between the current suspect for - * blame_entry e and its parent. Find and split the overlap, and - * pass blame to the overlapping part to the parent. + * blame_entry e and its parent. This first blames any unfinished + * entries before the chunk (which is where target and parent start + * differing) on the parent, and then splits blame entries at the + * start and at the end of the difference region. Since use of -M and + * -C options may lead to overlapping/duplicate source line number + * ranges, all we can rely on from sorting/merging is the order of the + * first suspect line number. */ -static void blame_chunk(struct scoreboard *sb, - int tlno, int plno, int same, - struct origin *target, struct origin *parent) +static void blame_chunk(struct blame_entry ***dstq, struct blame_entry ***srcq, + int tlno, int offset, int same, + struct origin *parent) { - struct blame_entry *e; + struct blame_entry *e = **srcq; + struct blame_entry *samep = NULL, *diffp = NULL; - for (e = sb->ent; e; e = e->next) { - if (e->guilty || !same_suspect(e->suspect, target)) - continue; - if (same <= e->s_lno) - continue; - if (tlno < e->s_lno + e->num_lines) - blame_overlap(sb, e, tlno, plno, same, parent); + while (e && e->s_lno < tlno) { + struct blame_entry *next = e->next; + /* + * current record starts before differing portion. If + * it reaches into it, we need to split it up and + * examine the second part separately. + */ + if (e->s_lno + e->num_lines > tlno) { + /* Move second half to a new record */ + int len = tlno - e->s_lno; + struct blame_entry *n = xcalloc(1, sizeof (struct blame_entry)); + n->suspect = e->suspect; + n->lno = e->lno + len; + n->s_lno = e->s_lno + len; + n->num_lines = e->num_lines - len; + e->num_lines = len; + e->score = 0; + /* Push new record to diffp */ + n->next = diffp; + diffp = n; + } else + origin_decref(e->suspect); + /* Pass blame for everything before the differing + * chunk to the parent */ + e->suspect = origin_incref(parent); + e->s_lno += offset; + e->next = samep; + samep = e; + e = next; } + /* + * As we don't know how much of a common stretch after this + * diff will occur, the currently blamed parts are all that we + * can assign to the parent for now. + */ + + if (samep) { + **dstq = reverse_blame(samep, **dstq); + *dstq = &samep->next; + } + /* + * Prepend the split off portions: everything after e starts + * after the blameable portion. + */ + e = reverse_blame(diffp, e); + + /* + * Now retain records on the target while parts are different + * from the parent. + */ + samep = NULL; + diffp = NULL; + while (e && e->s_lno < same) { + struct blame_entry *next = e->next; + + /* + * If current record extends into sameness, need to split. + */ + if (e->s_lno + e->num_lines > same) { + /* + * Move second half to a new record to be + * processed by later chunks + */ + int len = same - e->s_lno; + struct blame_entry *n = xcalloc(1, sizeof (struct blame_entry)); + n->suspect = origin_incref(e->suspect); + n->lno = e->lno + len; + n->s_lno = e->s_lno + len; + n->num_lines = e->num_lines - len; + e->num_lines = len; + e->score = 0; + /* Push new record to samep */ + n->next = samep; + samep = n; + } + e->next = diffp; + diffp = e; + e = next; + } + **srcq = reverse_blame(diffp, reverse_blame(samep, e)); + /* Move across elements that are in the unblamable portion */ + if (diffp) + *srcq = &diffp->next; } struct blame_chunk_cb_data { - struct scoreboard *sb; - struct origin *target; struct origin *parent; - long plno; - long tlno; + long offset; + struct blame_entry **dstq; + struct blame_entry **srcq; }; -static void blame_chunk_cb(void *data, long same, long p_next, long t_next) +/* diff chunks are from parent to target */ +static int blame_chunk_cb(long start_a, long count_a, + long start_b, long count_b, void *data) { struct blame_chunk_cb_data *d = data; - blame_chunk(d->sb, d->tlno, d->plno, same, d->target, d->parent); - d->plno = p_next; - d->tlno = t_next; + if (start_a - start_b != d->offset) + die("internal error in blame::blame_chunk_cb"); + blame_chunk(&d->dstq, &d->srcq, start_b, start_a - start_b, + start_b + count_b, d->parent); + d->offset = start_a + count_a - (start_b + count_b); + return 0; } /* @@ -772,34 +961,35 @@ static void blame_chunk_cb(void *data, long same, long p_next, long t_next) * for the lines it is suspected to its parent. Run diff to find * which lines came from parent and pass blame for them. */ -static int pass_blame_to_parent(struct scoreboard *sb, - struct origin *target, - struct origin *parent) +static void pass_blame_to_parent(struct scoreboard *sb, + struct origin *target, + struct origin *parent) { - int last_in_target; mmfile_t file_p, file_o; struct blame_chunk_cb_data d; - xpparam_t xpp; - xdemitconf_t xecfg; - memset(&d, 0, sizeof(d)); - d.sb = sb; d.target = target; d.parent = parent; - last_in_target = find_last_in_target(sb, target); - if (last_in_target < 0) - return 1; /* nothing remains for this target */ + struct blame_entry *newdest = NULL; + + if (!target->suspects) + return; /* nothing remains for this target */ + + d.parent = parent; + d.offset = 0; + d.dstq = &newdest; d.srcq = &target->suspects; fill_origin_blob(&sb->revs->diffopt, parent, &file_p); fill_origin_blob(&sb->revs->diffopt, target, &file_o); num_get_patch++; - memset(&xpp, 0, sizeof(xpp)); - xpp.flags = xdl_opts; - memset(&xecfg, 0, sizeof(xecfg)); - xecfg.ctxlen = 0; - xdi_diff_hunks(&file_p, &file_o, blame_chunk_cb, &d, &xpp, &xecfg); - /* The rest (i.e. anything after tlno) are the same as the parent */ - blame_chunk(sb, d.tlno, d.plno, last_in_target, target, parent); + if (diff_hunks(&file_p, &file_o, 0, blame_chunk_cb, &d)) + die("unable to generate diff (%s -> %s)", + oid_to_hex(&parent->commit->object.oid), + oid_to_hex(&target->commit->object.oid)); + /* The rest are the same as the parent */ + blame_chunk(&d.dstq, &d.srcq, INT_MAX, d.offset, INT_MAX, parent); + *d.dstq = NULL; + queue_blames(sb, parent, newdest); - return 0; + return; } /* @@ -899,12 +1089,15 @@ struct handle_split_cb_data { long tlno; }; -static void handle_split_cb(void *data, long same, long p_next, long t_next) +static int handle_split_cb(long start_a, long count_a, + long start_b, long count_b, void *data) { struct handle_split_cb_data *d = data; - handle_split(d->sb, d->ent, d->tlno, d->plno, same, d->parent, d->split); - d->plno = p_next; - d->tlno = t_next; + handle_split(d->sb, d->ent, d->tlno, d->plno, start_b, d->parent, + d->split); + d->plno = start_a + count_a; + d->tlno = start_b + count_b; + return 0; } /* @@ -919,11 +1112,9 @@ static void find_copy_in_blob(struct scoreboard *sb, mmfile_t *file_p) { const char *cp; - int cnt; mmfile_t file_o; struct handle_split_cb_data d; - xpparam_t xpp; - xdemitconf_t xecfg; + memset(&d, 0, sizeof(d)); d.sb = sb; d.ent = ent; d.parent = parent; d.split = split; /* @@ -931,65 +1122,94 @@ static void find_copy_in_blob(struct scoreboard *sb, */ cp = nth_line(sb, ent->lno); file_o.ptr = (char *) cp; - cnt = ent->num_lines; - - while (cnt && cp < sb->final_buf + sb->final_buf_size) { - if (*cp++ == '\n') - cnt--; - } - file_o.size = cp - file_o.ptr; + file_o.size = nth_line(sb, ent->lno + ent->num_lines) - cp; /* * file_o is a part of final image we are annotating. * file_p partially may match that image. */ - memset(&xpp, 0, sizeof(xpp)); - xpp.flags = xdl_opts; - memset(&xecfg, 0, sizeof(xecfg)); - xecfg.ctxlen = 1; memset(split, 0, sizeof(struct blame_entry [3])); - xdi_diff_hunks(file_p, &file_o, handle_split_cb, &d, &xpp, &xecfg); + if (diff_hunks(file_p, &file_o, 1, handle_split_cb, &d)) + die("unable to generate diff (%s)", + oid_to_hex(&parent->commit->object.oid)); /* remainder, if any, all match the preimage */ handle_split(sb, ent, d.tlno, d.plno, ent->num_lines, parent, split); } +/* Move all blame entries from list *source that have a score smaller + * than score_min to the front of list *small. + * Returns a pointer to the link pointing to the old head of the small list. + */ + +static struct blame_entry **filter_small(struct scoreboard *sb, + struct blame_entry **small, + struct blame_entry **source, + unsigned score_min) +{ + struct blame_entry *p = *source; + struct blame_entry *oldsmall = *small; + while (p) { + if (ent_score(sb, p) <= score_min) { + *small = p; + small = &p->next; + p = *small; + } else { + *source = p; + source = &p->next; + p = *source; + } + } + *small = oldsmall; + *source = NULL; + return small; +} + /* * See if lines currently target is suspected for can be attributed to * parent. */ -static int find_move_in_parent(struct scoreboard *sb, - struct origin *target, - struct origin *parent) +static void find_move_in_parent(struct scoreboard *sb, + struct blame_entry ***blamed, + struct blame_entry **toosmall, + struct origin *target, + struct origin *parent) { - int last_in_target, made_progress; struct blame_entry *e, split[3]; + struct blame_entry *unblamed = target->suspects; + struct blame_entry *leftover = NULL; mmfile_t file_p; - last_in_target = find_last_in_target(sb, target); - if (last_in_target < 0) - return 1; /* nothing remains for this target */ + if (!unblamed) + return; /* nothing remains for this target */ fill_origin_blob(&sb->revs->diffopt, parent, &file_p); if (!file_p.ptr) - return 0; + return; - made_progress = 1; - while (made_progress) { - made_progress = 0; - for (e = sb->ent; e; e = e->next) { - if (e->guilty || !same_suspect(e->suspect, target) || - ent_score(sb, e) < blame_move_score) - continue; + /* At each iteration, unblamed has a NULL-terminated list of + * entries that have not yet been tested for blame. leftover + * contains the reversed list of entries that have been tested + * without being assignable to the parent. + */ + do { + struct blame_entry **unblamedtail = &unblamed; + struct blame_entry *next; + for (e = unblamed; e; e = next) { + next = e->next; find_copy_in_blob(sb, e, parent, split, &file_p); if (split[1].suspect && blame_move_score < ent_score(sb, &split[1])) { - split_blame(sb, split, e); - made_progress = 1; + split_blame(blamed, &unblamedtail, split, e); + } else { + e->next = leftover; + leftover = e; } decref_split(split); } - } - return 0; + *unblamedtail = NULL; + toosmall = filter_small(sb, toosmall, &unblamed, blame_move_score); + } while (unblamed); + target->suspects = reverse_blame(leftover, NULL); } struct blame_list { @@ -1001,72 +1221,52 @@ struct blame_list { * Count the number of entries the target is suspected for, * and prepare a list of entry and the best split. */ -static struct blame_list *setup_blame_list(struct scoreboard *sb, - struct origin *target, - int min_score, +static struct blame_list *setup_blame_list(struct blame_entry *unblamed, int *num_ents_p) { struct blame_entry *e; int num_ents, i; struct blame_list *blame_list = NULL; - for (e = sb->ent, num_ents = 0; e; e = e->next) - if (!e->scanned && !e->guilty && - same_suspect(e->suspect, target) && - min_score < ent_score(sb, e)) - num_ents++; + for (e = unblamed, num_ents = 0; e; e = e->next) + num_ents++; if (num_ents) { blame_list = xcalloc(num_ents, sizeof(struct blame_list)); - for (e = sb->ent, i = 0; e; e = e->next) - if (!e->scanned && !e->guilty && - same_suspect(e->suspect, target) && - min_score < ent_score(sb, e)) - blame_list[i++].ent = e; + for (e = unblamed, i = 0; e; e = e->next) + blame_list[i++].ent = e; } *num_ents_p = num_ents; return blame_list; } /* - * Reset the scanned status on all entries. - */ -static void reset_scanned_flag(struct scoreboard *sb) -{ - struct blame_entry *e; - for (e = sb->ent; e; e = e->next) - e->scanned = 0; -} - -/* * For lines target is suspected for, see if we can find code movement * across file boundary from the parent commit. porigin is the path * in the parent we already tried. */ -static int find_copy_in_parent(struct scoreboard *sb, - struct origin *target, - struct commit *parent, - struct origin *porigin, - int opt) +static void find_copy_in_parent(struct scoreboard *sb, + struct blame_entry ***blamed, + struct blame_entry **toosmall, + struct origin *target, + struct commit *parent, + struct origin *porigin, + int opt) { struct diff_options diff_opts; - const char *paths[1]; int i, j; - int retval; struct blame_list *blame_list; int num_ents; + struct blame_entry *unblamed = target->suspects; + struct blame_entry *leftover = NULL; - blame_list = setup_blame_list(sb, target, blame_copy_score, &num_ents); - if (!blame_list) - return 1; /* nothing remains for this target */ + if (!unblamed) + return; /* nothing remains for this target */ diff_setup(&diff_opts); DIFF_OPT_SET(&diff_opts, RECURSIVE); diff_opts.output_format = DIFF_FORMAT_NO_OUTPUT; - paths[0] = NULL; - diff_tree_setup_paths(paths, &diff_opts); - if (diff_setup_done(&diff_opts) < 0) - die("diff-setup"); + diff_setup_done(&diff_opts); /* Try "find copies harder" on new path if requested; * we do not want to use diffcore_rename() actually to @@ -1080,19 +1280,19 @@ static int find_copy_in_parent(struct scoreboard *sb, && (!porigin || strcmp(target->path, porigin->path)))) DIFF_OPT_SET(&diff_opts, FIND_COPIES_HARDER); - if (is_null_sha1(target->commit->object.sha1)) - do_diff_cache(parent->tree->object.sha1, &diff_opts); + if (is_null_oid(&target->commit->object.oid)) + do_diff_cache(parent->tree->object.oid.hash, &diff_opts); else - diff_tree_sha1(parent->tree->object.sha1, - target->commit->tree->object.sha1, + diff_tree_sha1(parent->tree->object.oid.hash, + target->commit->tree->object.oid.hash, "", &diff_opts); if (!DIFF_OPT_TST(&diff_opts, FIND_COPIES_HARDER)) diffcore_std(&diff_opts); - retval = 0; - while (1) { - int made_progress = 0; + do { + struct blame_entry **unblamedtail = &unblamed; + blame_list = setup_blame_list(unblamed, &num_ents); for (i = 0; i < diff_queued_diff.nr; i++) { struct diff_filepair *p = diff_queued_diff.queue[i]; @@ -1129,27 +1329,21 @@ static int find_copy_in_parent(struct scoreboard *sb, struct blame_entry *split = blame_list[j].split; if (split[1].suspect && blame_copy_score < ent_score(sb, &split[1])) { - split_blame(sb, split, blame_list[j].ent); - made_progress = 1; + split_blame(blamed, &unblamedtail, split, + blame_list[j].ent); + } else { + blame_list[j].ent->next = leftover; + leftover = blame_list[j].ent; } - else - blame_list[j].ent->scanned = 1; decref_split(split); } free(blame_list); - - if (!made_progress) - break; - blame_list = setup_blame_list(sb, target, blame_copy_score, &num_ents); - if (!blame_list) { - retval = 1; - break; - } - } - reset_scanned_flag(sb); + *unblamedtail = NULL; + toosmall = filter_small(sb, toosmall, &unblamed, blame_copy_score); + } while (unblamed); + target->suspects = reverse_blame(leftover, NULL); diff_flush(&diff_opts); - diff_tree_release_paths(&diff_opts); - return retval; + free_pathspec(&diff_opts.pathspec); } /* @@ -1159,20 +1353,21 @@ static int find_copy_in_parent(struct scoreboard *sb, static void pass_whole_blame(struct scoreboard *sb, struct origin *origin, struct origin *porigin) { - struct blame_entry *e; + struct blame_entry *e, *suspects; if (!porigin->file.ptr && origin->file.ptr) { /* Steal its file */ porigin->file = origin->file; origin->file.ptr = NULL; } - for (e = sb->ent; e; e = e->next) { - if (!same_suspect(e->suspect, origin)) - continue; + suspects = origin->suspects; + origin->suspects = NULL; + for (e = suspects; e; e = e->next) { origin_incref(porigin); origin_decref(e->suspect); e->suspect = porigin; } + queue_blames(sb, porigin, suspects); } /* @@ -1182,18 +1377,43 @@ static void pass_whole_blame(struct scoreboard *sb, */ static struct commit_list *first_scapegoat(struct rev_info *revs, struct commit *commit) { - if (!reverse) + if (!reverse) { + if (revs->first_parent_only && + commit->parents && + commit->parents->next) { + free_commit_list(commit->parents->next); + commit->parents->next = NULL; + } return commit->parents; + } return lookup_decoration(&revs->children, &commit->object); } static int num_scapegoats(struct rev_info *revs, struct commit *commit) { - int cnt; struct commit_list *l = first_scapegoat(revs, commit); - for (cnt = 0; l; l = l->next) - cnt++; - return cnt; + return commit_list_count(l); +} + +/* Distribute collected unsorted blames to the respected sorted lists + * in the various origins. + */ +static void distribute_blame(struct scoreboard *sb, struct blame_entry *blamed) +{ + blamed = blame_sort(blamed, compare_blame_suspect); + while (blamed) + { + struct origin *porigin = blamed->suspect; + struct blame_entry *suspects = NULL; + do { + struct blame_entry *next = blamed->next; + blamed->next = suspects; + suspects = blamed; + blamed = next; + } while (blamed && blamed->suspect == porigin); + suspects = reverse_blame(suspects, NULL); + queue_blames(sb, porigin, suspects); + } } #define MAXSG 16 @@ -1206,6 +1426,8 @@ static void pass_blame(struct scoreboard *sb, struct origin *origin, int opt) struct commit_list *sg; struct origin *sg_buf[MAXSG]; struct origin *porigin, **sg_origin = sg_buf; + struct blame_entry *toosmall = NULL; + struct blame_entry *blames, **blametail = &blames; num_sg = num_scapegoats(revs, commit); if (!num_sg) @@ -1219,7 +1441,7 @@ static void pass_blame(struct scoreboard *sb, struct origin *origin, int opt) * The first pass looks for unrenamed path to optimize for * common cases, then we look for renames in the second pass. */ - for (pass = 0; pass < 2; pass++) { + for (pass = 0; pass < 2 - no_whole_file_rename; pass++) { struct origin *(*find)(struct scoreboard *, struct commit *, struct origin *); find = pass ? find_rename : find_origin; @@ -1267,38 +1489,71 @@ static void pass_blame(struct scoreboard *sb, struct origin *origin, int opt) origin_incref(porigin); origin->previous = porigin; } - if (pass_blame_to_parent(sb, origin, porigin)) + pass_blame_to_parent(sb, origin, porigin); + if (!origin->suspects) goto finish; } /* * Optionally find moves in parents' files. */ - if (opt & PICKAXE_BLAME_MOVE) - for (i = 0, sg = first_scapegoat(revs, commit); - i < num_sg && sg; - sg = sg->next, i++) { - struct origin *porigin = sg_origin[i]; - if (!porigin) - continue; - if (find_move_in_parent(sb, origin, porigin)) - goto finish; + if (opt & PICKAXE_BLAME_MOVE) { + filter_small(sb, &toosmall, &origin->suspects, blame_move_score); + if (origin->suspects) { + for (i = 0, sg = first_scapegoat(revs, commit); + i < num_sg && sg; + sg = sg->next, i++) { + struct origin *porigin = sg_origin[i]; + if (!porigin) + continue; + find_move_in_parent(sb, &blametail, &toosmall, origin, porigin); + if (!origin->suspects) + break; + } } + } /* * Optionally find copies from parents' files. */ - if (opt & PICKAXE_BLAME_COPY) + if (opt & PICKAXE_BLAME_COPY) { + if (blame_copy_score > blame_move_score) + filter_small(sb, &toosmall, &origin->suspects, blame_copy_score); + else if (blame_copy_score < blame_move_score) { + origin->suspects = blame_merge(origin->suspects, toosmall); + toosmall = NULL; + filter_small(sb, &toosmall, &origin->suspects, blame_copy_score); + } + if (!origin->suspects) + goto finish; + for (i = 0, sg = first_scapegoat(revs, commit); i < num_sg && sg; sg = sg->next, i++) { struct origin *porigin = sg_origin[i]; - if (find_copy_in_parent(sb, origin, sg->item, - porigin, opt)) + find_copy_in_parent(sb, &blametail, &toosmall, + origin, sg->item, porigin, opt); + if (!origin->suspects) goto finish; } + } - finish: +finish: + *blametail = NULL; + distribute_blame(sb, blames); + /* + * prepend toosmall to origin->suspects + * + * There is no point in sorting: this ends up on a big + * unsorted list in the caller anyway. + */ + if (toosmall) { + struct blame_entry **tail = &toosmall; + while (*tail) + tail = &(*tail)->next; + *tail = origin->suspects; + origin->suspects = toosmall; + } for (i = 0; i < num_sg; i++) { if (sg_origin[i]) { drop_origin_blob(sg_origin[i]); @@ -1314,30 +1569,31 @@ static void pass_blame(struct scoreboard *sb, struct origin *origin, int opt) * Information on commits, used for output. */ struct commit_info { - const char *author; - const char *author_mail; + struct strbuf author; + struct strbuf author_mail; unsigned long author_time; - const char *author_tz; + struct strbuf author_tz; /* filled only when asked for details */ - const char *committer; - const char *committer_mail; + struct strbuf committer; + struct strbuf committer_mail; unsigned long committer_time; - const char *committer_tz; + struct strbuf committer_tz; - const char *summary; + struct strbuf summary; }; /* * Parse author/committer line in the commit object buffer */ static void get_ac_line(const char *inbuf, const char *what, - int person_len, char *person, - int mail_len, char *mail, - unsigned long *time, const char **tz) + struct strbuf *name, struct strbuf *mail, + unsigned long *time, struct strbuf *tz) { - int len, tzlen, maillen; - char *tmp, *endp, *timepos, *mailpos; + struct ident_split ident; + size_t len, maillen, namelen; + char *tmp, *endp; + const char *namebuf, *mailbuf; tmp = strstr(inbuf, what); if (!tmp) @@ -1348,69 +1604,66 @@ static void get_ac_line(const char *inbuf, const char *what, len = strlen(tmp); else len = endp - tmp; - if (person_len <= len) { + + if (split_ident_line(&ident, tmp, len)) { error_out: /* Ugh */ - *tz = "(unknown)"; - strcpy(person, *tz); - strcpy(mail, *tz); + tmp = "(unknown)"; + strbuf_addstr(name, tmp); + strbuf_addstr(mail, tmp); + strbuf_addstr(tz, tmp); *time = 0; return; } - memcpy(person, tmp, len); - tmp = person; - tmp += len; - *tmp = 0; - while (person < tmp && *tmp != ' ') - tmp--; - if (tmp <= person) - goto error_out; - *tz = tmp+1; - tzlen = (person+len)-(tmp+1); - - *tmp = 0; - while (person < tmp && *tmp != ' ') - tmp--; - if (tmp <= person) - goto error_out; - *time = strtoul(tmp, NULL, 10); - timepos = tmp; + namelen = ident.name_end - ident.name_begin; + namebuf = ident.name_begin; - *tmp = 0; - while (person < tmp && !(*tmp == ' ' && tmp[1] == '<')) - tmp--; - if (tmp <= person) - return; - mailpos = tmp + 1; - *tmp = 0; - maillen = timepos - tmp; - memcpy(mail, mailpos, maillen); + maillen = ident.mail_end - ident.mail_begin; + mailbuf = ident.mail_begin; - if (!mailmap.nr) - return; + if (ident.date_begin && ident.date_end) + *time = strtoul(ident.date_begin, NULL, 10); + else + *time = 0; - /* - * mailmap expansion may make the name longer. - * make room by pushing stuff down. - */ - tmp = person + person_len - (tzlen + 1); - memmove(tmp, *tz, tzlen); - tmp[tzlen] = 0; - *tz = tmp; + if (ident.tz_begin && ident.tz_end) + strbuf_add(tz, ident.tz_begin, ident.tz_end - ident.tz_begin); + else + strbuf_addstr(tz, "(unknown)"); /* * Now, convert both name and e-mail using mailmap */ - if (map_user(&mailmap, mail+1, mail_len-1, person, tmp-person-1)) { - /* Add a trailing '>' to email, since map_user returns plain emails - Note: It already has '<', since we replace from mail+1 */ - mailpos = memchr(mail, '\0', mail_len); - if (mailpos && mailpos-mail < mail_len - 1) { - *mailpos = '>'; - *(mailpos+1) = '\0'; - } - } + map_user(&mailmap, &mailbuf, &maillen, + &namebuf, &namelen); + + strbuf_addf(mail, "<%.*s>", (int)maillen, mailbuf); + strbuf_add(name, namebuf, namelen); +} + +static void commit_info_init(struct commit_info *ci) +{ + + strbuf_init(&ci->author, 0); + strbuf_init(&ci->author_mail, 0); + strbuf_init(&ci->author_tz, 0); + strbuf_init(&ci->committer, 0); + strbuf_init(&ci->committer_mail, 0); + strbuf_init(&ci->committer_tz, 0); + strbuf_init(&ci->summary, 0); +} + +static void commit_info_destroy(struct commit_info *ci) +{ + + strbuf_release(&ci->author); + strbuf_release(&ci->author_mail); + strbuf_release(&ci->author_tz); + strbuf_release(&ci->committer); + strbuf_release(&ci->committer_mail); + strbuf_release(&ci->committer_tz); + strbuf_release(&ci->summary); } static void get_commit_info(struct commit *commit, @@ -1418,57 +1671,33 @@ static void get_commit_info(struct commit *commit, int detailed) { int len; - const char *subject; - char *reencoded, *message; - static char author_name[1024]; - static char author_mail[1024]; - static char committer_name[1024]; - static char committer_mail[1024]; - static char summary_buf[1024]; + const char *subject, *encoding; + const char *message; - /* - * We've operated without save_commit_buffer, so - * we now need to populate them for output. - */ - if (!commit->buffer) { - enum object_type type; - unsigned long size; - commit->buffer = - read_sha1_file(commit->object.sha1, &type, &size); - if (!commit->buffer) - die("Cannot read commit %s", - sha1_to_hex(commit->object.sha1)); - } - reencoded = reencode_commit_message(commit, NULL); - message = reencoded ? reencoded : commit->buffer; - ret->author = author_name; - ret->author_mail = author_mail; + commit_info_init(ret); + + encoding = get_log_output_encoding(); + message = logmsg_reencode(commit, NULL, encoding); get_ac_line(message, "\nauthor ", - sizeof(author_name), author_name, - sizeof(author_mail), author_mail, + &ret->author, &ret->author_mail, &ret->author_time, &ret->author_tz); if (!detailed) { - free(reencoded); + unuse_commit_buffer(commit, message); return; } - ret->committer = committer_name; - ret->committer_mail = committer_mail; get_ac_line(message, "\ncommitter ", - sizeof(committer_name), committer_name, - sizeof(committer_mail), committer_mail, + &ret->committer, &ret->committer_mail, &ret->committer_time, &ret->committer_tz); - ret->summary = summary_buf; len = find_commit_subject(message, &subject); - if (len && len < sizeof(summary_buf)) { - memcpy(summary_buf, subject, len); - summary_buf[len] = 0; - } else { - sprintf(summary_buf, "(%s)", sha1_to_hex(commit->object.sha1)); - } - free(reencoded); + if (len) + strbuf_add(&ret->summary, subject, len); + else + strbuf_addf(&ret->summary, "(%s)", oid_to_hex(&commit->object.oid)); + + unuse_commit_buffer(commit, message); } /* @@ -1496,75 +1725,84 @@ static int emit_one_suspect_detail(struct origin *suspect, int repeat) suspect->commit->object.flags |= METAINFO_SHOWN; get_commit_info(suspect->commit, &ci, 1); - printf("author %s\n", ci.author); - printf("author-mail %s\n", ci.author_mail); + printf("author %s\n", ci.author.buf); + printf("author-mail %s\n", ci.author_mail.buf); printf("author-time %lu\n", ci.author_time); - printf("author-tz %s\n", ci.author_tz); - printf("committer %s\n", ci.committer); - printf("committer-mail %s\n", ci.committer_mail); + printf("author-tz %s\n", ci.author_tz.buf); + printf("committer %s\n", ci.committer.buf); + printf("committer-mail %s\n", ci.committer_mail.buf); printf("committer-time %lu\n", ci.committer_time); - printf("committer-tz %s\n", ci.committer_tz); - printf("summary %s\n", ci.summary); + printf("committer-tz %s\n", ci.committer_tz.buf); + printf("summary %s\n", ci.summary.buf); if (suspect->commit->object.flags & UNINTERESTING) printf("boundary\n"); if (suspect->previous) { struct origin *prev = suspect->previous; - printf("previous %s ", sha1_to_hex(prev->commit->object.sha1)); + printf("previous %s ", oid_to_hex(&prev->commit->object.oid)); write_name_quoted(prev->path, stdout, '\n'); } + + commit_info_destroy(&ci); + return 1; } /* - * The blame_entry is found to be guilty for the range. Mark it - * as such, and show it in incremental output. + * The blame_entry is found to be guilty for the range. + * Show it in incremental output. */ -static void found_guilty_entry(struct blame_entry *ent) +static void found_guilty_entry(struct blame_entry *ent, + struct progress_info *pi) { - if (ent->guilty) - return; - ent->guilty = 1; if (incremental) { struct origin *suspect = ent->suspect; printf("%s %d %d %d\n", - sha1_to_hex(suspect->commit->object.sha1), + oid_to_hex(&suspect->commit->object.oid), ent->s_lno + 1, ent->lno + 1, ent->num_lines); emit_one_suspect_detail(suspect, 0); write_filename_info(suspect->path); maybe_flush_or_die(stdout, "stdout"); } + pi->blamed_lines += ent->num_lines; + display_progress(pi->progress, pi->blamed_lines); } /* - * The main loop -- while the scoreboard has lines whose true origin - * is still unknown, pick one blame_entry, and allow its current - * suspect to pass blames to its parents. - */ + * The main loop -- while we have blobs with lines whose true origin + * is still unknown, pick one blob, and allow its lines to pass blames + * to its parents. */ static void assign_blame(struct scoreboard *sb, int opt) { struct rev_info *revs = sb->revs; + struct commit *commit = prio_queue_get(&sb->commits); + struct progress_info pi = { NULL, 0 }; - while (1) { + if (show_progress) + pi.progress = start_progress_delay(_("Blaming lines"), + sb->num_lines, 50, 1); + + while (commit) { struct blame_entry *ent; - struct commit *commit; - struct origin *suspect = NULL; + struct origin *suspect = commit->util; /* find one suspect to break down */ - for (ent = sb->ent; !suspect && ent; ent = ent->next) - if (!ent->guilty) - suspect = ent->suspect; - if (!suspect) - return; /* all done */ + while (suspect && !suspect->suspects) + suspect = suspect->next; + + if (!suspect) { + commit = prio_queue_get(&sb->commits); + continue; + } + + assert(commit == suspect->commit); /* * We will use this suspect later in the loop, * so hold onto it in the meantime. */ origin_incref(suspect); - commit = suspect->commit; - if (!commit->object.parsed) - parse_commit(commit); + parse_commit(commit); if (reverse || (!(commit->object.flags & UNINTERESTING) && !(revs->max_age != -1 && commit->date < revs->max_age))) @@ -1579,35 +1817,57 @@ static void assign_blame(struct scoreboard *sb, int opt) commit->object.flags |= UNINTERESTING; /* Take responsibility for the remaining entries */ - for (ent = sb->ent; ent; ent = ent->next) - if (same_suspect(ent->suspect, suspect)) - found_guilty_entry(ent); + ent = suspect->suspects; + if (ent) { + suspect->guilty = 1; + for (;;) { + struct blame_entry *next = ent->next; + found_guilty_entry(ent, &pi); + if (next) { + ent = next; + continue; + } + ent->next = sb->ent; + sb->ent = suspect->suspects; + suspect->suspects = NULL; + break; + } + } origin_decref(suspect); if (DEBUG) /* sanity */ sanity_check_refcnt(sb); } + + stop_progress(&pi.progress); } static const char *format_time(unsigned long time, const char *tz_str, int show_raw_time) { - static char time_buf[128]; - const char *time_str; - int time_len; - int tz; + static struct strbuf time_buf = STRBUF_INIT; + strbuf_reset(&time_buf); if (show_raw_time) { - snprintf(time_buf, sizeof(time_buf), "%lu %s", time, tz_str); + strbuf_addf(&time_buf, "%lu %s", time, tz_str); } else { + const char *time_str; + size_t time_width; + int tz; tz = atoi(tz_str); - time_str = show_date(time, tz, blame_date_mode); - time_len = strlen(time_str); - memcpy(time_buf, time_str, time_len); - memset(time_buf + time_len, ' ', blame_date_width - time_len); + time_str = show_date(time, tz, &blame_date_mode); + strbuf_addstr(&time_buf, time_str); + /* + * Add space paddings to time_buf to display a fixed width + * string, and use time_width for display width calibration. + */ + for (time_width = utf8_strwidth(time_str); + time_width < blame_date_width; + time_width++) + strbuf_addch(&time_buf, ' '); } - return time_buf; + return time_buf.buf; } #define OUTPUT_ANNOTATE_COMPAT 001 @@ -1635,12 +1895,11 @@ static void emit_porcelain(struct scoreboard *sb, struct blame_entry *ent, int cnt; const char *cp; struct origin *suspect = ent->suspect; - char hex[41]; + char hex[GIT_SHA1_HEXSZ + 1]; - strcpy(hex, sha1_to_hex(suspect->commit->object.sha1)); - printf("%s%c%d %d %d\n", + sha1_to_hex_r(hex, suspect->commit->object.oid.hash); + printf("%s %d %d %d\n", hex, - ent->guilty ? ' ' : '*', /* purely for debugging */ ent->s_lno + 1, ent->lno + 1, ent->num_lines); @@ -1674,11 +1933,11 @@ static void emit_other(struct scoreboard *sb, struct blame_entry *ent, int opt) const char *cp; struct origin *suspect = ent->suspect; struct commit_info ci; - char hex[41]; + char hex[GIT_SHA1_HEXSZ + 1]; int show_raw_time = !!(opt & OUTPUT_RAW_TIMESTAMP); get_commit_info(suspect->commit, &ci, 1); - strcpy(hex, sha1_to_hex(suspect->commit->object.sha1)); + sha1_to_hex_r(hex, suspect->commit->object.oid.hash); cp = nth_line(sb, ent->lno); for (cnt = 0; cnt < ent->num_lines; cnt++) { @@ -1698,11 +1957,11 @@ static void emit_other(struct scoreboard *sb, struct blame_entry *ent, int opt) if (opt & OUTPUT_ANNOTATE_COMPAT) { const char *name; if (opt & OUTPUT_SHOW_EMAIL) - name = ci.author_mail; + name = ci.author_mail.buf; else - name = ci.author; + name = ci.author.buf; printf("\t(%10s\t%10s\t%d)", name, - format_time(ci.author_time, ci.author_tz, + format_time(ci.author_time, ci.author_tz.buf, show_raw_time), ent->lno + 1 + cnt); } else { @@ -1721,14 +1980,14 @@ static void emit_other(struct scoreboard *sb, struct blame_entry *ent, int opt) const char *name; int pad; if (opt & OUTPUT_SHOW_EMAIL) - name = ci.author_mail; + name = ci.author_mail.buf; else - name = ci.author; + name = ci.author.buf; pad = longest_author - utf8_strwidth(name); printf(" (%s%*s %10s", name, pad, "", format_time(ci.author_time, - ci.author_tz, + ci.author_tz.buf, show_raw_time)); } printf(" %*d) ", @@ -1743,6 +2002,8 @@ static void emit_other(struct scoreboard *sb, struct blame_entry *ent, int opt) if (sb->final_buf_size && cp[-1] != '\n') putchar('\n'); + + commit_info_destroy(&ci); } static void output(struct scoreboard *sb, int option) @@ -1751,17 +2012,16 @@ static void output(struct scoreboard *sb, int option) if (option & OUTPUT_PORCELAIN) { for (ent = sb->ent; ent; ent = ent->next) { - struct blame_entry *oth; - struct origin *suspect = ent->suspect; - struct commit *commit = suspect->commit; + int count = 0; + struct origin *suspect; + struct commit *commit = ent->suspect->commit; if (commit->object.flags & MORE_THAN_ONE_PATH) continue; - for (oth = ent->next; oth; oth = oth->next) { - if ((oth->suspect->commit != commit) || - !strcmp(oth->suspect->path, suspect->path)) - continue; - commit->object.flags |= MORE_THAN_ONE_PATH; - break; + for (suspect = commit->util; suspect; suspect = suspect->next) { + if (suspect->guilty && count++) { + commit->object.flags |= MORE_THAN_ONE_PATH; + break; + } } } } @@ -1775,6 +2035,12 @@ static void output(struct scoreboard *sb, int option) } } +static const char *get_next_line(const char *start, const char *end) +{ + const char *nl = memchr(start, '\n', end - start); + return nl ? nl + 1 : end; +} + /* * To allow quick access to the contents of nth line in the * final image, prepare an index in the scoreboard. @@ -1783,26 +2049,23 @@ static int prepare_lines(struct scoreboard *sb) { const char *buf = sb->final_buf; unsigned long len = sb->final_buf_size; - int num = 0, incomplete = 0, bol = 1; - - if (len && buf[len-1] != '\n') - incomplete++; /* incomplete line at the end */ - while (len--) { - if (bol) { - sb->lineno = xrealloc(sb->lineno, - sizeof(int *) * (num + 1)); - sb->lineno[num] = buf - sb->final_buf; - bol = 0; - } - if (*buf++ == '\n') { - num++; - bol = 1; - } - } - sb->lineno = xrealloc(sb->lineno, - sizeof(int *) * (num + incomplete + 1)); - sb->lineno[num + incomplete] = buf - sb->final_buf; - sb->num_lines = num + incomplete; + const char *end = buf + len; + const char *p; + int *lineno; + int num = 0; + + for (p = buf; p < end; p = get_next_line(p, end)) + num++; + + ALLOC_ARRAY(sb->lineno, num + 1); + lineno = sb->lineno; + + for (p = buf; p < end; p = get_next_line(p, end)) + *lineno++ = p - buf; + + *lineno = len; + + sb->num_lines = num; return sb->num_lines; } @@ -1814,30 +2077,28 @@ static int prepare_lines(struct scoreboard *sb) static int read_ancestry(const char *graft_file) { FILE *fp = fopen(graft_file, "r"); - char buf[1024]; + struct strbuf buf = STRBUF_INIT; if (!fp) return -1; - while (fgets(buf, sizeof(buf), fp)) { + while (!strbuf_getwholeline(&buf, fp, '\n')) { /* The format is just "Commit Parent1 Parent2 ...\n" */ - int len = strlen(buf); - struct commit_graft *graft = read_graft_line(buf, len); + struct commit_graft *graft = read_graft_line(buf.buf, buf.len); if (graft) register_commit_graft(graft, 0); } fclose(fp); + strbuf_release(&buf); return 0; } -/* - * How many columns do we need to show line numbers in decimal? - */ -static int lineno_width(int lines) +static int update_auto_abbrev(int auto_abbrev, struct origin *suspect) { - int i, width; - - for (width = 1, i = 10; i <= lines; width++) - i *= 10; - return width; + const char *uniq = find_unique_abbrev(suspect->commit->object.oid.hash, + auto_abbrev); + int len = strlen(uniq); + if (auto_abbrev < len) + return len; + return auto_abbrev; } /* @@ -1850,26 +2111,31 @@ static void find_alignment(struct scoreboard *sb, int *option) int longest_dst_lines = 0; unsigned largest_score = 0; struct blame_entry *e; + int compute_auto_abbrev = (abbrev < 0); + int auto_abbrev = default_abbrev; for (e = sb->ent; e; e = e->next) { struct origin *suspect = e->suspect; - struct commit_info ci; int num; + if (compute_auto_abbrev) + auto_abbrev = update_auto_abbrev(auto_abbrev, suspect); if (strcmp(suspect->path, sb->path)) *option |= OUTPUT_SHOW_NAME; num = strlen(suspect->path); if (longest_file < num) longest_file = num; if (!(suspect->commit->object.flags & METAINFO_SHOWN)) { + struct commit_info ci; suspect->commit->object.flags |= METAINFO_SHOWN; get_commit_info(suspect->commit, &ci, 1); if (*option & OUTPUT_SHOW_EMAIL) - num = utf8_strwidth(ci.author_mail); + num = utf8_strwidth(ci.author_mail.buf); else - num = utf8_strwidth(ci.author); + num = utf8_strwidth(ci.author.buf); if (longest_author < num) longest_author = num; + commit_info_destroy(&ci); } num = e->s_lno + e->num_lines; if (longest_src_lines < num) @@ -1880,9 +2146,13 @@ static void find_alignment(struct scoreboard *sb, int *option) if (largest_score < ent_score(sb, e)) largest_score = ent_score(sb, e); } - max_orig_digits = lineno_width(longest_src_lines); - max_digits = lineno_width(longest_dst_lines); - max_score_digits = lineno_width(largest_score); + max_orig_digits = decimal_width(longest_src_lines); + max_digits = decimal_width(longest_dst_lines); + max_score_digits = decimal_width(largest_score); + + if (compute_auto_abbrev) + /* one more abbrev length is needed for the boundary commit */ + abbrev = auto_abbrev + 1; } /* @@ -1899,7 +2169,7 @@ static void sanity_check_refcnt(struct scoreboard *sb) if (ent->suspect->refcnt <= 0) { fprintf(stderr, "%s in %s has negative refcnt %d\n", ent->suspect->path, - sha1_to_hex(ent->suspect->commit->object.sha1), + oid_to_hex(&ent->suspect->commit->object.oid), ent->suspect->refcnt); baa = 1; } @@ -1912,16 +2182,6 @@ static void sanity_check_refcnt(struct scoreboard *sb) } } -/* - * Used for the command line parsing; check if the path exists - * in the working tree. - */ -static int has_string_in_work_tree(const char *path) -{ - struct stat st; - return !lstat(path, &st); -} - static unsigned parse_score(const char *arg) { char *end; @@ -1936,103 +2196,6 @@ static const char *add_prefix(const char *prefix, const char *path) return prefix_path(prefix, prefix ? strlen(prefix) : 0, path); } -/* - * Parsing of (comma separated) one item in the -L option - */ -static const char *parse_loc(const char *spec, - struct scoreboard *sb, long lno, - long begin, long *ret) -{ - char *term; - const char *line; - long num; - int reg_error; - regex_t regexp; - regmatch_t match[1]; - - /* Allow "-L <something>,+20" to mean starting at <something> - * for 20 lines, or "-L <something>,-5" for 5 lines ending at - * <something>. - */ - if (1 < begin && (spec[0] == '+' || spec[0] == '-')) { - num = strtol(spec + 1, &term, 10); - if (term != spec + 1) { - if (spec[0] == '-') - num = 0 - num; - if (0 < num) - *ret = begin + num - 2; - else if (!num) - *ret = begin; - else - *ret = begin + num; - return term; - } - return spec; - } - num = strtol(spec, &term, 10); - if (term != spec) { - *ret = num; - return term; - } - if (spec[0] != '/') - return spec; - - /* it could be a regexp of form /.../ */ - for (term = (char *) spec + 1; *term && *term != '/'; term++) { - if (*term == '\\') - term++; - } - if (*term != '/') - return spec; - - /* try [spec+1 .. term-1] as regexp */ - *term = 0; - begin--; /* input is in human terms */ - line = nth_line(sb, begin); - - if (!(reg_error = regcomp(®exp, spec + 1, REG_NEWLINE)) && - !(reg_error = regexec(®exp, line, 1, match, 0))) { - const char *cp = line + match[0].rm_so; - const char *nline; - - while (begin++ < lno) { - nline = nth_line(sb, begin); - if (line <= cp && cp < nline) - break; - line = nline; - } - *ret = begin; - regfree(®exp); - *term++ = '/'; - return term; - } - else { - char errbuf[1024]; - regerror(reg_error, ®exp, errbuf, 1024); - die("-L parameter '%s': %s", spec + 1, errbuf); - } -} - -/* - * Parsing of -L option - */ -static void prepare_blame_range(struct scoreboard *sb, - const char *bottomtop, - long lno, - long *bottom, long *top) -{ - const char *term; - - term = parse_loc(bottomtop, sb, lno, 1, bottom); - if (*term == ',') { - term = parse_loc(term + 1, sb, lno, *bottom + 1, top); - if (*term) - usage(blame_usage); - } - if (*term) - usage(blame_usage); -} - static int git_blame_config(const char *var, const char *value, void *cb) { if (!strcmp(var, "blame.showroot")) { @@ -2043,25 +2206,87 @@ static int git_blame_config(const char *var, const char *value, void *cb) blank_boundary = git_config_bool(var, value); return 0; } + if (!strcmp(var, "blame.showemail")) { + int *output_option = cb; + if (git_config_bool(var, value)) + *output_option |= OUTPUT_SHOW_EMAIL; + else + *output_option &= ~OUTPUT_SHOW_EMAIL; + return 0; + } if (!strcmp(var, "blame.date")) { if (!value) return config_error_nonbool(var); - blame_date_mode = parse_date_format(value); + parse_date_format(value, &blame_date_mode); return 0; } - switch (userdiff_config(var, value)) { - case 0: - break; - case -1: + if (userdiff_config(var, value) < 0) return -1; - default: - return 0; - } return git_default_config(var, value, cb); } +static void verify_working_tree_path(struct commit *work_tree, const char *path) +{ + struct commit_list *parents; + + for (parents = work_tree->parents; parents; parents = parents->next) { + const unsigned char *commit_sha1 = parents->item->object.oid.hash; + unsigned char blob_sha1[20]; + unsigned mode; + + if (!get_tree_entry(commit_sha1, path, blob_sha1, &mode) && + sha1_object_info(blob_sha1, NULL) == OBJ_BLOB) + return; + } + die("no such path '%s' in HEAD", path); +} + +static struct commit_list **append_parent(struct commit_list **tail, const unsigned char *sha1) +{ + struct commit *parent; + + parent = lookup_commit_reference(sha1); + if (!parent) + die("no such commit %s", sha1_to_hex(sha1)); + return &commit_list_insert(parent, tail)->next; +} + +static void append_merge_parents(struct commit_list **tail) +{ + int merge_head; + struct strbuf line = STRBUF_INIT; + + merge_head = open(git_path_merge_head(), O_RDONLY); + if (merge_head < 0) { + if (errno == ENOENT) + return; + die("cannot open '%s' for reading", git_path_merge_head()); + } + + while (!strbuf_getwholeline_fd(&line, merge_head, '\n')) { + unsigned char sha1[20]; + if (line.len < 40 || get_sha1_hex(line.buf, sha1)) + die("unknown line in '%s': %s", git_path_merge_head(), line.buf); + tail = append_parent(tail, sha1); + } + close(merge_head); + strbuf_release(&line); +} + +/* + * This isn't as simple as passing sb->buf and sb->len, because we + * want to transfer ownership of the buffer to the commit (so we + * must use detach). + */ +static void set_commit_buffer_from_strbuf(struct commit *c, struct strbuf *sb) +{ + size_t len; + void *buf = strbuf_detach(sb, &len); + set_commit_buffer(c, buf, len); +} + /* * Prepare a dummy commit that represents the work tree (or staged) item. * Note that annotating work tree item never works in the reverse. @@ -2072,6 +2297,7 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt, { struct commit *commit; struct origin *origin; + struct commit_list **parent_tail, *parent; unsigned char head_sha1[20]; struct strbuf buf = STRBUF_INIT; const char *ident; @@ -2079,20 +2305,38 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt, int size, len; struct cache_entry *ce; unsigned mode; + struct strbuf msg = STRBUF_INIT; - if (get_sha1("HEAD", head_sha1)) - die("No such ref: HEAD"); - + read_cache(); time(&now); - commit = xcalloc(1, sizeof(*commit)); - commit->parents = xcalloc(1, sizeof(*commit->parents)); - commit->parents->item = lookup_commit_reference(head_sha1); + commit = alloc_commit_node(); commit->object.parsed = 1; commit->date = now; - commit->object.type = OBJ_COMMIT; + parent_tail = &commit->parents; + + if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, head_sha1, NULL)) + die("no such ref: HEAD"); + + parent_tail = append_parent(parent_tail, head_sha1); + append_merge_parents(parent_tail); + verify_working_tree_path(commit, path); origin = make_origin(commit, path); + ident = fmt_ident("Not Committed Yet", "not.committed.yet", NULL, 0); + strbuf_addstr(&msg, "tree 0000000000000000000000000000000000000000\n"); + for (parent = commit->parents; parent; parent = parent->next) + strbuf_addf(&msg, "parent %s\n", + oid_to_hex(&parent->item->object.oid)); + strbuf_addf(&msg, + "author %s\n" + "committer %s\n\n" + "Version of %s from %s\n", + ident, ident, path, + (!contents_from ? path : + (!strcmp(contents_from, "-") ? "standard input" : contents_from))); + set_commit_buffer_from_strbuf(commit, &msg); + if (!contents_from || strcmp("-", contents_from)) { struct stat st; const char *read_from; @@ -2114,7 +2358,7 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt, switch (st.st_mode & S_IFMT) { case S_IFREG: if (DIFF_OPT_TST(opt, ALLOW_TEXTCONV) && - textconv_object(read_from, mode, null_sha1, &buf_ptr, &buf_len)) + textconv_object(read_from, mode, null_sha1, 0, &buf_ptr, &buf_len)) strbuf_attach(&buf, buf_ptr, buf_len, buf_len + 1); else if (strbuf_read_file(&buf, read_from, st.st_size) != st.st_size) die_errno("cannot open or read '%s'", read_from); @@ -2129,7 +2373,6 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt, } else { /* Reading from stdin */ - contents_from = "standard input"; mode = 0; if (strbuf_read(&buf, 0, 0) < 0) die_errno("failed to read from stdin"); @@ -2138,7 +2381,6 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt, origin->file.ptr = buf.buf; origin->file.size = buf.len; pretend_sha1_file(buf.buf, buf.len, OBJ_BLOB, origin->blob_sha1); - commit->util = origin; /* * Read the current index, replace the path entry with @@ -2162,59 +2404,49 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt, ce = xcalloc(1, size); hashcpy(ce->sha1, origin->blob_sha1); memcpy(ce->name, path, len); - ce->ce_flags = create_ce_flags(len, 0); + ce->ce_flags = create_ce_flags(0); + ce->ce_namelen = len; ce->ce_mode = create_ce_mode(mode); add_cache_entry(ce, ADD_CACHE_OK_TO_ADD|ADD_CACHE_OK_TO_REPLACE); - /* - * We are not going to write this out, so this does not matter - * right now, but someday we might optimize diff-index --cached - * with cache-tree information. - */ - cache_tree_invalidate_path(active_cache_tree, path); + cache_tree_invalidate_path(&the_index, path); - commit->buffer = xmalloc(400); - ident = fmt_ident("Not Committed Yet", "not.committed.yet", NULL, 0); - snprintf(commit->buffer, 400, - "tree 0000000000000000000000000000000000000000\n" - "parent %s\n" - "author %s\n" - "committer %s\n\n" - "Version of %s from %s\n", - sha1_to_hex(head_sha1), - ident, ident, path, contents_from ? contents_from : path); return commit; } -static const char *prepare_final(struct scoreboard *sb) +static struct commit *find_single_final(struct rev_info *revs, + const char **name_p) { int i; - const char *final_commit_name = NULL; - struct rev_info *revs = sb->revs; + struct commit *found = NULL; + const char *name = NULL; - /* - * There must be one and only one positive commit in the - * revs->pending array. - */ for (i = 0; i < revs->pending.nr; i++) { struct object *obj = revs->pending.objects[i].item; if (obj->flags & UNINTERESTING) continue; - while (obj->type == OBJ_TAG) - obj = deref_tag(obj, NULL, 0); + obj = deref_tag(obj, NULL, 0); if (obj->type != OBJ_COMMIT) die("Non commit %s?", revs->pending.objects[i].name); - if (sb->final) + if (found) die("More than one commit to dig from %s and %s?", - revs->pending.objects[i].name, - final_commit_name); - sb->final = (struct commit *) obj; - final_commit_name = revs->pending.objects[i].name; + revs->pending.objects[i].name, name); + found = (struct commit *)obj; + name = revs->pending.objects[i].name; } - return final_commit_name; + if (name_p) + *name_p = name; + return found; +} + +static char *prepare_final(struct scoreboard *sb) +{ + const char *name; + sb->final = find_single_final(sb->revs, &name); + return xstrdup_or_null(name); } -static const char *prepare_initial(struct scoreboard *sb) +static char *prepare_initial(struct scoreboard *sb) { int i; const char *final_commit_name = NULL; @@ -2228,8 +2460,7 @@ static const char *prepare_initial(struct scoreboard *sb) struct object *obj = revs->pending.objects[i].item; if (!(obj->flags & UNINTERESTING)) continue; - while (obj->type == OBJ_TAG) - obj = deref_tag(obj, NULL, 0); + obj = deref_tag(obj, NULL, 0); if (obj->type != OBJ_COMMIT) die("Non commit %s?", revs->pending.objects[i].name); if (sb->final) @@ -2241,7 +2472,7 @@ static const char *prepare_initial(struct scoreboard *sb) } if (!final_commit_name) die("No commit to dig down to?"); - return final_commit_name; + return xstrdup(final_commit_name); } static int blame_copy_callback(const struct option *option, const char *arg, int unset) @@ -2277,68 +2508,65 @@ static int blame_move_callback(const struct option *option, const char *arg, int return 0; } -static int blame_bottomtop_callback(const struct option *option, const char *arg, int unset) -{ - const char **bottomtop = option->value; - if (!arg) - return -1; - if (*bottomtop) - die("More than one '-L n,m' option given"); - *bottomtop = arg; - return 0; -} - int cmd_blame(int argc, const char **argv, const char *prefix) { struct rev_info revs; const char *path; struct scoreboard sb; struct origin *o; - struct blame_entry *ent; - long dashdash_pos, bottom, top, lno; - const char *final_commit_name = NULL; + struct blame_entry *ent = NULL; + long dashdash_pos, lno; + char *final_commit_name = NULL; enum object_type type; + struct commit *final_commit = NULL; - static const char *bottomtop = NULL; + static struct string_list range_list; static int output_option = 0, opt = 0; static int show_stats = 0; static const char *revs_file = NULL; static const char *contents_from = NULL; static const struct option options[] = { - OPT_BOOLEAN(0, "incremental", &incremental, "Show blame entries as we find them, incrementally"), - OPT_BOOLEAN('b', NULL, &blank_boundary, "Show blank SHA-1 for boundary commits (Default: off)"), - OPT_BOOLEAN(0, "root", &show_root, "Do not treat root commits as boundaries (Default: off)"), - OPT_BOOLEAN(0, "show-stats", &show_stats, "Show work cost statistics"), - OPT_BIT(0, "score-debug", &output_option, "Show output score for blame entries", OUTPUT_SHOW_SCORE), - OPT_BIT('f', "show-name", &output_option, "Show original filename (Default: auto)", OUTPUT_SHOW_NAME), - OPT_BIT('n', "show-number", &output_option, "Show original linenumber (Default: off)", OUTPUT_SHOW_NUMBER), - OPT_BIT('p', "porcelain", &output_option, "Show in a format designed for machine consumption", OUTPUT_PORCELAIN), - OPT_BIT(0, "line-porcelain", &output_option, "Show porcelain format with per-line commit information", OUTPUT_PORCELAIN|OUTPUT_LINE_PORCELAIN), - OPT_BIT('c', NULL, &output_option, "Use the same output mode as git-annotate (Default: off)", OUTPUT_ANNOTATE_COMPAT), - OPT_BIT('t', NULL, &output_option, "Show raw timestamp (Default: off)", OUTPUT_RAW_TIMESTAMP), - OPT_BIT('l', NULL, &output_option, "Show long commit SHA1 (Default: off)", OUTPUT_LONG_OBJECT_NAME), - OPT_BIT('s', NULL, &output_option, "Suppress author name and timestamp (Default: off)", OUTPUT_NO_AUTHOR), - OPT_BIT('e', "show-email", &output_option, "Show author email instead of name (Default: off)", OUTPUT_SHOW_EMAIL), - OPT_BIT('w', NULL, &xdl_opts, "Ignore whitespace differences", XDF_IGNORE_WHITESPACE), - OPT_STRING('S', NULL, &revs_file, "file", "Use revisions from <file> instead of calling git-rev-list"), - OPT_STRING(0, "contents", &contents_from, "file", "Use <file>'s contents as the final image"), - { OPTION_CALLBACK, 'C', NULL, &opt, "score", "Find line copies within and across files", PARSE_OPT_OPTARG, blame_copy_callback }, - { OPTION_CALLBACK, 'M', NULL, &opt, "score", "Find line movements within and across files", PARSE_OPT_OPTARG, blame_move_callback }, - OPT_CALLBACK('L', NULL, &bottomtop, "n,m", "Process only line range n,m, counting from 1", blame_bottomtop_callback), + OPT_BOOL(0, "incremental", &incremental, N_("Show blame entries as we find them, incrementally")), + OPT_BOOL('b', NULL, &blank_boundary, N_("Show blank SHA-1 for boundary commits (Default: off)")), + OPT_BOOL(0, "root", &show_root, N_("Do not treat root commits as boundaries (Default: off)")), + OPT_BOOL(0, "show-stats", &show_stats, N_("Show work cost statistics")), + OPT_BOOL(0, "progress", &show_progress, N_("Force progress reporting")), + OPT_BIT(0, "score-debug", &output_option, N_("Show output score for blame entries"), OUTPUT_SHOW_SCORE), + OPT_BIT('f', "show-name", &output_option, N_("Show original filename (Default: auto)"), OUTPUT_SHOW_NAME), + OPT_BIT('n', "show-number", &output_option, N_("Show original linenumber (Default: off)"), OUTPUT_SHOW_NUMBER), + OPT_BIT('p', "porcelain", &output_option, N_("Show in a format designed for machine consumption"), OUTPUT_PORCELAIN), + OPT_BIT(0, "line-porcelain", &output_option, N_("Show porcelain format with per-line commit information"), OUTPUT_PORCELAIN|OUTPUT_LINE_PORCELAIN), + OPT_BIT('c', NULL, &output_option, N_("Use the same output mode as git-annotate (Default: off)"), OUTPUT_ANNOTATE_COMPAT), + OPT_BIT('t', NULL, &output_option, N_("Show raw timestamp (Default: off)"), OUTPUT_RAW_TIMESTAMP), + OPT_BIT('l', NULL, &output_option, N_("Show long commit SHA1 (Default: off)"), OUTPUT_LONG_OBJECT_NAME), + OPT_BIT('s', NULL, &output_option, N_("Suppress author name and timestamp (Default: off)"), OUTPUT_NO_AUTHOR), + OPT_BIT('e', "show-email", &output_option, N_("Show author email instead of name (Default: off)"), OUTPUT_SHOW_EMAIL), + OPT_BIT('w', NULL, &xdl_opts, N_("Ignore whitespace differences"), XDF_IGNORE_WHITESPACE), + OPT_BIT(0, "minimal", &xdl_opts, N_("Spend extra cycles to find better match"), XDF_NEED_MINIMAL), + OPT_STRING('S', NULL, &revs_file, N_("file"), N_("Use revisions from <file> instead of calling git-rev-list")), + OPT_STRING(0, "contents", &contents_from, N_("file"), N_("Use <file>'s contents as the final image")), + { OPTION_CALLBACK, 'C', NULL, &opt, N_("score"), N_("Find line copies within and across files"), PARSE_OPT_OPTARG, blame_copy_callback }, + { OPTION_CALLBACK, 'M', NULL, &opt, N_("score"), N_("Find line movements within and across files"), PARSE_OPT_OPTARG, blame_move_callback }, + OPT_STRING_LIST('L', NULL, &range_list, N_("n,m"), N_("Process only line range n,m, counting from 1")), OPT__ABBREV(&abbrev), OPT_END() }; struct parse_opt_ctx_t ctx; int cmd_is_annotate = !strcmp(argv[0], "annotate"); + struct range_set ranges; + unsigned int range_i; + long anchor; - git_config(git_blame_config, NULL); + git_config(git_blame_config, &output_option); init_revisions(&revs, NULL); revs.date_mode = blame_date_mode; DIFF_OPT_SET(&revs.diffopt, ALLOW_TEXTCONV); + DIFF_OPT_SET(&revs.diffopt, FOLLOW_RENAMES); save_commit_buffer = 0; dashdash_pos = 0; + show_progress = -1; parse_options_start(&ctx, argc, argv, prefix, options, PARSE_OPT_KEEP_DASHDASH | PARSE_OPT_KEEP_ARGV0); @@ -2359,28 +2587,39 @@ int cmd_blame(int argc, const char **argv, const char *prefix) parse_revision_opt(&revs, &ctx, options, blame_opt_usage); } parse_done: + no_whole_file_rename = !DIFF_OPT_TST(&revs.diffopt, FOLLOW_RENAMES); + DIFF_OPT_CLR(&revs.diffopt, FOLLOW_RENAMES); argc = parse_options_end(&ctx); - if (abbrev == -1) - abbrev = default_abbrev; - /* one more abbrev length is needed for the boundary commit */ - abbrev++; + if (incremental || (output_option & OUTPUT_PORCELAIN)) { + if (show_progress > 0) + die("--progress can't be used with --incremental or porcelain formats"); + show_progress = 0; + } else if (show_progress < 0) + show_progress = isatty(2); + + if (0 < abbrev) + /* one more abbrev length is needed for the boundary commit */ + abbrev++; if (revs_file && read_ancestry(revs_file)) die_errno("reading graft file '%s' failed", revs_file); if (cmd_is_annotate) { output_option |= OUTPUT_ANNOTATE_COMPAT; - blame_date_mode = DATE_ISO8601; + blame_date_mode.type = DATE_ISO8601; } else { blame_date_mode = revs.date_mode; } /* The maximum width used to show the dates */ - switch (blame_date_mode) { + switch (blame_date_mode.type) { case DATE_RFC2822: blame_date_width = sizeof("Thu, 19 Oct 2006 16:00:04 -0700"); break; + case DATE_ISO8601_STRICT: + blame_date_width = sizeof("2006-10-19T16:00:04-07:00"); + break; case DATE_ISO8601: blame_date_width = sizeof("2006-10-19 16:00:04 -0700"); break; @@ -2391,11 +2630,20 @@ parse_done: blame_date_width = sizeof("2006-10-19"); break; case DATE_RELATIVE: - /* "normal" is used as the fallback for "relative" */ - case DATE_LOCAL: + /* TRANSLATORS: This string is used to tell us the maximum + display width for a relative timestamp in "git blame" + output. For C locale, "4 years, 11 months ago", which + takes 22 places, is the longest among various forms of + relative timestamps, but your language may need more or + fewer display columns. */ + blame_date_width = utf8_strwidth(_("4 years, 11 months ago")) + 1; /* add the null */ + break; case DATE_NORMAL: blame_date_width = sizeof("Thu Oct 19 16:00:04 2006 -0700"); break; + case DATE_STRFTIME: + blame_date_width = strlen(show_date(0, 0, &blame_date_mode)) + 1; /* add the null */ + break; } blame_date_width -= 1; /* strip the null */ @@ -2447,14 +2695,14 @@ parse_done: if (argc < 2) usage_with_options(blame_opt_usage, options); path = add_prefix(prefix, argv[argc - 1]); - if (argc == 3 && !has_string_in_work_tree(path)) { /* (2b) */ + if (argc == 3 && !file_exists(path)) { /* (2b) */ path = add_prefix(prefix, argv[1]); argv[1] = argv[2]; } argv[argc - 1] = "--"; setup_work_tree(); - if (!has_string_in_work_tree(path)) + if (!file_exists(path)) die_errno("cannot stat path '%s'", path); } @@ -2463,12 +2711,18 @@ parse_done: memset(&sb, 0, sizeof(sb)); sb.revs = &revs; - if (!reverse) + if (!reverse) { final_commit_name = prepare_final(&sb); + sb.commits.compare = compare_commits_by_commit_date; + } else if (contents_from) - die("--contents and --children do not blend well."); - else + die("--contents and --reverse do not blend well."); + else { final_commit_name = prepare_initial(&sb); + sb.commits.compare = compare_commits_by_reverse_commit_date; + if (revs.first_parent_only) + revs.children.name = NULL; + } if (!sb.final) { /* @@ -2484,20 +2738,42 @@ parse_done: else if (contents_from) die("Cannot use --contents with final commit object name"); + if (reverse && revs.first_parent_only) { + final_commit = find_single_final(sb.revs, NULL); + if (!final_commit) + die("--reverse and --first-parent together require specified latest commit"); + } + /* * If we have bottom, this will mark the ancestors of the * bottom commits we would reach while traversing as * uninteresting. */ if (prepare_revision_walk(&revs)) - die("revision walk setup failed"); + die(_("revision walk setup failed")); - if (is_null_sha1(sb.final->object.sha1)) { - char *buf; + if (reverse && revs.first_parent_only) { + struct commit *c = final_commit; + + sb.revs->children.name = "children"; + while (c->parents && + oidcmp(&c->object.oid, &sb.final->object.oid)) { + struct commit_list *l = xcalloc(1, sizeof(*l)); + + l->item = c; + if (add_decoration(&sb.revs->children, + &c->parents->item->object, l)) + die("BUG: not unique item in first-parent chain"); + c = c->parents->item; + } + + if (oidcmp(&c->object.oid, &sb.final->object.oid)) + die("--reverse --first-parent together require range along first-parent chain"); + } + + if (is_null_oid(&sb.final->object.oid)) { o = sb.final->util; - buf = xmalloc(o->file.size + 1); - memcpy(buf, o->file.ptr, o->file.size + 1); - sb.final_buf = buf; + sb.final_buf = xmemdupz(o->file.ptr, o->file.size); sb.final_buf_size = o->file.size; } else { @@ -2506,7 +2782,7 @@ parse_done: die("no such path %s in %s", path, final_commit_name); if (DIFF_OPT_TST(&sb.revs->diffopt, ALLOW_TEXTCONV) && - textconv_object(path, o->mode, o->blob_sha1, (char **) &sb.final_buf, + textconv_object(path, o->mode, o->blob_sha1, 1, (char **) &sb.final_buf, &sb.final_buf_size)) ; else @@ -2521,40 +2797,68 @@ parse_done: num_read_blob++; lno = prepare_lines(&sb); - bottom = top = 0; - if (bottomtop) - prepare_blame_range(&sb, bottomtop, lno, &bottom, &top); - if (bottom && top && top < bottom) { - long tmp; - tmp = top; top = bottom; bottom = tmp; - } - if (bottom < 1) - bottom = 1; - if (top < 1) - top = lno; - bottom--; - if (lno < top || lno < bottom) - die("file %s has only %lu lines", path, lno); - - ent = xcalloc(1, sizeof(*ent)); - ent->lno = bottom; - ent->num_lines = top - bottom; - ent->suspect = o; - ent->s_lno = bottom; - - sb.ent = ent; + if (lno && !range_list.nr) + string_list_append(&range_list, xstrdup("1")); + + anchor = 1; + range_set_init(&ranges, range_list.nr); + for (range_i = 0; range_i < range_list.nr; ++range_i) { + long bottom, top; + if (parse_range_arg(range_list.items[range_i].string, + nth_line_cb, &sb, lno, anchor, + &bottom, &top, sb.path)) + usage(blame_usage); + if (lno < top || ((lno || bottom) && lno < bottom)) + die("file %s has only %lu lines", path, lno); + if (bottom < 1) + bottom = 1; + if (top < 1) + top = lno; + bottom--; + range_set_append_unsafe(&ranges, bottom, top); + anchor = top + 1; + } + sort_and_merge_range_set(&ranges); + + for (range_i = ranges.nr; range_i > 0; --range_i) { + const struct range *r = &ranges.ranges[range_i - 1]; + long bottom = r->start; + long top = r->end; + struct blame_entry *next = ent; + ent = xcalloc(1, sizeof(*ent)); + ent->lno = bottom; + ent->num_lines = top - bottom; + ent->suspect = o; + ent->s_lno = bottom; + ent->next = next; + origin_incref(o); + } + + o->suspects = ent; + prio_queue_put(&sb.commits, o->commit); + + origin_decref(o); + + range_set_release(&ranges); + string_list_clear(&range_list, 0); + + sb.ent = NULL; sb.path = path; read_mailmap(&mailmap, NULL); + assign_blame(&sb, opt); + if (!incremental) setup_pager(); - assign_blame(&sb, opt); + free(final_commit_name); if (incremental) return 0; + sb.ent = blame_sort(sb.ent, compare_blame_final); + coalesce(&sb); if (!(output_option & OUTPUT_PORCELAIN)) diff --git a/builtin/branch.c b/builtin/branch.c index 7095718c13..2ecde53bf8 100644 --- a/builtin/branch.c +++ b/builtin/branch.c @@ -15,18 +15,22 @@ #include "branch.h" #include "diff.h" #include "revision.h" +#include "string-list.h" +#include "column.h" +#include "utf8.h" +#include "wt-status.h" +#include "ref-filter.h" +#include "worktree.h" static const char * const builtin_branch_usage[] = { - "git branch [options] [-r | -a] [--merged | --no-merged]", - "git branch [options] [-l] [-f] <branchname> [<start-point>]", - "git branch [options] [-r] (-d | -D) <branchname>...", - "git branch [options] (-m | -M) [<oldbranch>] <newbranch>", + N_("git branch [<options>] [-r | -a] [--merged | --no-merged]"), + N_("git branch [<options>] [-l] [-f] <branch-name> [<start-point>]"), + N_("git branch [<options>] [-r] (-d | -D) <branch-name>..."), + N_("git branch [<options>] (-m | -M) [<old-branch>] <new-branch>"), + N_("git branch [<options>] [-r | -a] [--points-at]"), NULL }; -#define REF_LOCAL_BRANCH 0x01 -#define REF_REMOTE_BRANCH 0x02 - static const char *head; static unsigned char head_sha1[20]; @@ -37,51 +41,54 @@ static char branch_colors[][COLOR_MAXLEN] = { GIT_COLOR_RED, /* REMOTE */ GIT_COLOR_NORMAL, /* LOCAL */ GIT_COLOR_GREEN, /* CURRENT */ + GIT_COLOR_BLUE, /* UPSTREAM */ }; enum color_branch { BRANCH_COLOR_RESET = 0, BRANCH_COLOR_PLAIN = 1, BRANCH_COLOR_REMOTE = 2, BRANCH_COLOR_LOCAL = 3, - BRANCH_COLOR_CURRENT = 4 + BRANCH_COLOR_CURRENT = 4, + BRANCH_COLOR_UPSTREAM = 5 }; -static enum merge_filter { - NO_FILTER = 0, - SHOW_NOT_MERGED, - SHOW_MERGED -} merge_filter; -static unsigned char merge_filter_ref[20]; +static struct string_list output = STRING_LIST_INIT_DUP; +static unsigned int colopts; -static int parse_branch_color_slot(const char *var, int ofs) +static int parse_branch_color_slot(const char *slot) { - if (!strcasecmp(var+ofs, "plain")) + if (!strcasecmp(slot, "plain")) return BRANCH_COLOR_PLAIN; - if (!strcasecmp(var+ofs, "reset")) + if (!strcasecmp(slot, "reset")) return BRANCH_COLOR_RESET; - if (!strcasecmp(var+ofs, "remote")) + if (!strcasecmp(slot, "remote")) return BRANCH_COLOR_REMOTE; - if (!strcasecmp(var+ofs, "local")) + if (!strcasecmp(slot, "local")) return BRANCH_COLOR_LOCAL; - if (!strcasecmp(var+ofs, "current")) + if (!strcasecmp(slot, "current")) return BRANCH_COLOR_CURRENT; + if (!strcasecmp(slot, "upstream")) + return BRANCH_COLOR_UPSTREAM; return -1; } static int git_branch_config(const char *var, const char *value, void *cb) { + const char *slot_name; + + if (starts_with(var, "column.")) + return git_column_config(var, value, "branch", &colopts); if (!strcmp(var, "color.branch")) { branch_use_color = git_config_colorbool(var, value); return 0; } - if (!prefixcmp(var, "color.branch.")) { - int slot = parse_branch_color_slot(var, 13); + if (skip_prefix(var, "color.branch.", &slot_name)) { + int slot = parse_branch_color_slot(slot_name); if (slot < 0) return 0; if (!value) return config_error_nonbool(var); - color_parse(value, var, branch_colors[slot]); - return 0; + return color_parse(value, branch_colors[slot]); } return git_color_default_config(var, value, cb); } @@ -107,22 +114,21 @@ static int branch_merged(int kind, const char *name, void *reference_name_to_free = NULL; int merged; - if (kind == REF_LOCAL_BRANCH) { + if (kind == FILTER_REFS_BRANCHES) { struct branch *branch = branch_get(name); + const char *upstream = branch_get_upstream(branch, NULL); unsigned char sha1[20]; - if (branch && - branch->merge && - branch->merge[0] && - branch->merge[0]->dst && + if (upstream && (reference_name = reference_name_to_free = - resolve_refdup(branch->merge[0]->dst, sha1, 1, NULL)) != NULL) + resolve_refdup(upstream, RESOLVE_REF_READING, + sha1, NULL)) != NULL) reference_rev = lookup_commit_reference(sha1); } if (!reference_rev) reference_rev = head_rev; - merged = in_merge_bases(rev, &reference_rev, 1); + merged = in_merge_bases(rev, reference_rev); /* * After the safety valve is fully redefined to "check with @@ -132,7 +138,7 @@ static int branch_merged(int kind, const char *name, * a gentle reminder is in order. */ if ((head_rev != reference_rev) && - in_merge_bases(rev, &head_rev, 1) != merged) { + in_merge_bases(rev, head_rev) != merged) { if (merged) warning(_("deleting branch '%s' that has been merged to\n" " '%s', but not yet merged to HEAD."), @@ -146,26 +152,55 @@ static int branch_merged(int kind, const char *name, return merged; } -static int delete_branches(int argc, const char **argv, int force, int kinds) +static int check_branch_commit(const char *branchname, const char *refname, + const unsigned char *sha1, struct commit *head_rev, + int kinds, int force) +{ + struct commit *rev = lookup_commit_reference(sha1); + if (!rev) { + error(_("Couldn't look up commit object for '%s'"), refname); + return -1; + } + if (!force && !branch_merged(kinds, branchname, rev, head_rev)) { + error(_("The branch '%s' is not fully merged.\n" + "If you are sure you want to delete it, " + "run 'git branch -D %s'."), branchname, branchname); + return -1; + } + return 0; +} + +static void delete_branch_config(const char *branchname) { - struct commit *rev, *head_rev = NULL; + struct strbuf buf = STRBUF_INIT; + strbuf_addf(&buf, "branch.%s", branchname); + if (git_config_rename_section(buf.buf, NULL) < 0) + warning(_("Update of config-file failed")); + strbuf_release(&buf); +} + +static int delete_branches(int argc, const char **argv, int force, int kinds, + int quiet) +{ + struct commit *head_rev = NULL; unsigned char sha1[20]; char *name = NULL; - const char *fmt, *remote; + const char *fmt; int i; int ret = 0; + int remote_branch = 0; struct strbuf bname = STRBUF_INIT; switch (kinds) { - case REF_REMOTE_BRANCH: + case FILTER_REFS_REMOTES: fmt = "refs/remotes/%s"; - /* TRANSLATORS: This is "remote " in "remote branch '%s' not found" */ - remote = _("remote "); + /* For subsequent UI messages */ + remote_branch = 1; + force = 1; break; - case REF_LOCAL_BRANCH: + case FILTER_REFS_BRANCHES: fmt = "refs/heads/%s"; - remote = ""; break; default: die(_("cannot use -a with -d")); @@ -177,53 +212,64 @@ static int delete_branches(int argc, const char **argv, int force, int kinds) die(_("Couldn't look up commit object for HEAD")); } for (i = 0; i < argc; i++, strbuf_release(&bname)) { - strbuf_branchname(&bname, argv[i]); - if (kinds == REF_LOCAL_BRANCH && !strcmp(head, bname.buf)) { - error(_("Cannot delete the branch '%s' " - "which you are currently on."), bname.buf); - ret = 1; - continue; - } + const char *target; + int flags = 0; + strbuf_branchname(&bname, argv[i]); free(name); - - name = xstrdup(mkpath(fmt, bname.buf)); - if (read_ref(name, sha1)) { - error(_("%sbranch '%s' not found."), - remote, bname.buf); - ret = 1; - continue; + name = mkpathdup(fmt, bname.buf); + + if (kinds == FILTER_REFS_BRANCHES) { + const struct worktree *wt = + find_shared_symref("HEAD", name); + if (wt) { + error(_("Cannot delete branch '%s' " + "checked out at '%s'"), + bname.buf, wt->path); + ret = 1; + continue; + } } - rev = lookup_commit_reference(sha1); - if (!rev) { - error(_("Couldn't look up commit object for '%s'"), name); + target = resolve_ref_unsafe(name, + RESOLVE_REF_READING + | RESOLVE_REF_NO_RECURSE + | RESOLVE_REF_ALLOW_BAD_NAME, + sha1, &flags); + if (!target) { + error(remote_branch + ? _("remote-tracking branch '%s' not found.") + : _("branch '%s' not found."), bname.buf); ret = 1; continue; } - if (!force && !branch_merged(kinds, bname.buf, rev, head_rev)) { - error(_("The branch '%s' is not fully merged.\n" - "If you are sure you want to delete it, " - "run 'git branch -D %s'."), bname.buf, bname.buf); + if (!(flags & (REF_ISSYMREF|REF_ISBROKEN)) && + check_branch_commit(bname.buf, name, sha1, head_rev, kinds, + force)) { ret = 1; continue; } - if (delete_ref(name, sha1, 0)) { - error(_("Error deleting %sbranch '%s'"), remote, + if (delete_ref(name, is_null_sha1(sha1) ? NULL : sha1, + REF_NODEREF)) { + error(remote_branch + ? _("Error deleting remote-tracking branch '%s'") + : _("Error deleting branch '%s'"), bname.buf); ret = 1; - } else { - struct strbuf buf = STRBUF_INIT; - printf(_("Deleted %sbranch %s (was %s).\n"), remote, + continue; + } + if (!quiet) { + printf(remote_branch + ? _("Deleted remote-tracking branch %s (was %s).\n") + : _("Deleted branch %s (was %s).\n"), bname.buf, - find_unique_abbrev(sha1, DEFAULT_ABBREV)); - strbuf_addf(&buf, "branch.%s", bname.buf); - if (git_config_rename_section(buf.buf, NULL) < 0) - warning(_("Update of config-file failed")); - strbuf_release(&buf); + (flags & REF_ISBROKEN) ? "broken" + : (flags & REF_ISSYMREF) ? target + : find_unique_abbrev(sha1, DEFAULT_ABBREV)); } + delete_branch_config(bname.buf); } free(name); @@ -231,223 +277,153 @@ static int delete_branches(int argc, const char **argv, int force, int kinds) return(ret); } -struct ref_item { - char *name; - char *dest; - unsigned int kind, len; - struct commit *commit; -}; - -struct ref_list { - struct rev_info revs; - int index, alloc, maxwidth, verbose, abbrev; - struct ref_item *list; - struct commit_list *with_commit; - int kinds; -}; - -static char *resolve_symref(const char *src, const char *prefix) -{ - unsigned char sha1[20]; - int flag; - const char *dst, *cp; - - dst = resolve_ref_unsafe(src, sha1, 0, &flag); - if (!(dst && (flag & REF_ISSYMREF))) - return NULL; - if (prefix && (cp = skip_prefix(dst, prefix))) - dst = cp; - return xstrdup(dst); -} - -struct append_ref_cb { - struct ref_list *ref_list; - const char **pattern; - int ret; -}; - -static int match_patterns(const char **pattern, const char *refname) -{ - if (!*pattern) - return 1; /* no pattern always matches */ - while (*pattern) { - if (!fnmatch(*pattern, refname, 0)) - return 1; - pattern++; - } - return 0; -} - -static int append_ref(const char *refname, const unsigned char *sha1, int flags, void *cb_data) -{ - struct append_ref_cb *cb = (struct append_ref_cb *)(cb_data); - struct ref_list *ref_list = cb->ref_list; - struct ref_item *newitem; - struct commit *commit; - int kind, i; - const char *prefix, *orig_refname = refname; - - static struct { - int kind; - const char *prefix; - int pfxlen; - } ref_kind[] = { - { REF_LOCAL_BRANCH, "refs/heads/", 11 }, - { REF_REMOTE_BRANCH, "refs/remotes/", 13 }, - }; - - /* Detect kind */ - for (i = 0; i < ARRAY_SIZE(ref_kind); i++) { - prefix = ref_kind[i].prefix; - if (strncmp(refname, prefix, ref_kind[i].pfxlen)) - continue; - kind = ref_kind[i].kind; - refname += ref_kind[i].pfxlen; - break; - } - if (ARRAY_SIZE(ref_kind) <= i) - return 0; - - /* Don't add types the caller doesn't want */ - if ((kind & ref_list->kinds) == 0) - return 0; - - if (!match_patterns(cb->pattern, refname)) - return 0; - - commit = NULL; - if (ref_list->verbose || ref_list->with_commit || merge_filter != NO_FILTER) { - commit = lookup_commit_reference_gently(sha1, 1); - if (!commit) { - cb->ret = error(_("branch '%s' does not point at a commit"), refname); - return 0; - } - - /* Filter with with_commit if specified */ - if (!is_descendant_of(commit, ref_list->with_commit)) - return 0; - - if (merge_filter != NO_FILTER) - add_pending_object(&ref_list->revs, - (struct object *)commit, refname); - } - - ALLOC_GROW(ref_list->list, ref_list->index + 1, ref_list->alloc); - - /* Record the new item */ - newitem = &(ref_list->list[ref_list->index++]); - newitem->name = xstrdup(refname); - newitem->kind = kind; - newitem->commit = commit; - newitem->len = strlen(refname); - newitem->dest = resolve_symref(orig_refname, prefix); - /* adjust for "remotes/" */ - if (newitem->kind == REF_REMOTE_BRANCH && - ref_list->kinds != REF_REMOTE_BRANCH) - newitem->len += 8; - if (newitem->len > ref_list->maxwidth) - ref_list->maxwidth = newitem->len; - - return 0; -} - -static void free_ref_list(struct ref_list *ref_list) -{ - int i; - - for (i = 0; i < ref_list->index; i++) { - free(ref_list->list[i].name); - free(ref_list->list[i].dest); - } - free(ref_list->list); -} - -static int ref_cmp(const void *r1, const void *r2) -{ - struct ref_item *c1 = (struct ref_item *)(r1); - struct ref_item *c2 = (struct ref_item *)(r2); - - if (c1->kind != c2->kind) - return c1->kind - c2->kind; - return strcmp(c1->name, c2->name); -} - static void fill_tracking_info(struct strbuf *stat, const char *branch_name, int show_upstream_ref) { int ours, theirs; + char *ref = NULL; struct branch *branch = branch_get(branch_name); - - if (!stat_tracking_info(branch, &ours, &theirs)) { - if (branch && branch->merge && branch->merge[0]->dst && - show_upstream_ref) - strbuf_addf(stat, "[%s] ", - shorten_unambiguous_ref(branch->merge[0]->dst, 0)); - return; + const char *upstream; + struct strbuf fancy = STRBUF_INIT; + int upstream_is_gone = 0; + int added_decoration = 1; + + if (stat_tracking_info(branch, &ours, &theirs, &upstream) < 0) { + if (!upstream) + return; + upstream_is_gone = 1; } - strbuf_addch(stat, '['); - if (show_upstream_ref) - strbuf_addf(stat, "%s: ", - shorten_unambiguous_ref(branch->merge[0]->dst, 0)); - if (!ours) - strbuf_addf(stat, _("behind %d] "), theirs); - else if (!theirs) - strbuf_addf(stat, _("ahead %d] "), ours); - else - strbuf_addf(stat, _("ahead %d, behind %d] "), ours, theirs); -} - -static int matches_merge_filter(struct commit *commit) -{ - int is_merged; + if (show_upstream_ref) { + ref = shorten_unambiguous_ref(upstream, 0); + if (want_color(branch_use_color)) + strbuf_addf(&fancy, "%s%s%s", + branch_get_color(BRANCH_COLOR_UPSTREAM), + ref, branch_get_color(BRANCH_COLOR_RESET)); + else + strbuf_addstr(&fancy, ref); + } - if (merge_filter == NO_FILTER) - return 1; + if (upstream_is_gone) { + if (show_upstream_ref) + strbuf_addf(stat, _("[%s: gone]"), fancy.buf); + else + added_decoration = 0; + } else if (!ours && !theirs) { + if (show_upstream_ref) + strbuf_addf(stat, _("[%s]"), fancy.buf); + else + added_decoration = 0; + } else if (!ours) { + if (show_upstream_ref) + strbuf_addf(stat, _("[%s: behind %d]"), fancy.buf, theirs); + else + strbuf_addf(stat, _("[behind %d]"), theirs); - is_merged = !!(commit->object.flags & UNINTERESTING); - return (is_merged == (merge_filter == SHOW_MERGED)); + } else if (!theirs) { + if (show_upstream_ref) + strbuf_addf(stat, _("[%s: ahead %d]"), fancy.buf, ours); + else + strbuf_addf(stat, _("[ahead %d]"), ours); + } else { + if (show_upstream_ref) + strbuf_addf(stat, _("[%s: ahead %d, behind %d]"), + fancy.buf, ours, theirs); + else + strbuf_addf(stat, _("[ahead %d, behind %d]"), + ours, theirs); + } + strbuf_release(&fancy); + if (added_decoration) + strbuf_addch(stat, ' '); + free(ref); } -static void add_verbose_info(struct strbuf *out, struct ref_item *item, - int verbose, int abbrev) +static void add_verbose_info(struct strbuf *out, struct ref_array_item *item, + struct ref_filter *filter, const char *refname) { struct strbuf subject = STRBUF_INIT, stat = STRBUF_INIT; - const char *sub = " **** invalid ref ****"; + const char *sub = _(" **** invalid ref ****"); struct commit *commit = item->commit; - if (commit && !parse_commit(commit)) { + if (!parse_commit(commit)) { pp_commit_easy(CMIT_FMT_ONELINE, commit, &subject); sub = subject.buf; } - if (item->kind == REF_LOCAL_BRANCH) - fill_tracking_info(&stat, item->name, verbose > 1); + if (item->kind == FILTER_REFS_BRANCHES) + fill_tracking_info(&stat, refname, filter->verbose > 1); strbuf_addf(out, " %s %s%s", - find_unique_abbrev(item->commit->object.sha1, abbrev), + find_unique_abbrev(item->commit->object.oid.hash, filter->abbrev), stat.buf, sub); strbuf_release(&stat); strbuf_release(&subject); } -static void print_ref_item(struct ref_item *item, int maxwidth, int verbose, - int abbrev, int current, char *prefix) +static char *get_head_description(void) +{ + struct strbuf desc = STRBUF_INIT; + struct wt_status_state state; + memset(&state, 0, sizeof(state)); + wt_status_get_state(&state, 1); + if (state.rebase_in_progress || + state.rebase_interactive_in_progress) + strbuf_addf(&desc, _("(no branch, rebasing %s)"), + state.branch); + else if (state.bisect_in_progress) + strbuf_addf(&desc, _("(no branch, bisect started on %s)"), + state.branch); + else if (state.detached_from) { + if (state.detached_at) + /* TRANSLATORS: make sure this matches + "HEAD detached at " in wt-status.c */ + strbuf_addf(&desc, _("(HEAD detached at %s)"), + state.detached_from); + else + /* TRANSLATORS: make sure this matches + "HEAD detached from " in wt-status.c */ + strbuf_addf(&desc, _("(HEAD detached from %s)"), + state.detached_from); + } + else + strbuf_addstr(&desc, _("(no branch)")); + free(state.branch); + free(state.onto); + free(state.detached_from); + return strbuf_detach(&desc, NULL); +} + +static void format_and_print_ref_item(struct ref_array_item *item, int maxwidth, + struct ref_filter *filter, const char *remote_prefix) { char c; + int current = 0; int color; - struct commit *commit = item->commit; struct strbuf out = STRBUF_INIT, name = STRBUF_INIT; - - if (!matches_merge_filter(commit)) - return; + const char *prefix_to_show = ""; + const char *prefix_to_skip = NULL; + const char *desc = item->refname; + char *to_free = NULL; switch (item->kind) { - case REF_LOCAL_BRANCH: - color = BRANCH_COLOR_LOCAL; + case FILTER_REFS_BRANCHES: + prefix_to_skip = "refs/heads/"; + skip_prefix(desc, prefix_to_skip, &desc); + if (!filter->detached && !strcmp(desc, head)) + current = 1; + else + color = BRANCH_COLOR_LOCAL; break; - case REF_REMOTE_BRANCH: + case FILTER_REFS_REMOTES: + prefix_to_skip = "refs/remotes/"; + skip_prefix(desc, prefix_to_skip, &desc); color = BRANCH_COLOR_REMOTE; + prefix_to_show = remote_prefix; + break; + case FILTER_REFS_DETACHED_HEAD: + desc = to_free = get_head_description(); + current = 1; break; default: color = BRANCH_COLOR_PLAIN; @@ -460,108 +436,117 @@ static void print_ref_item(struct ref_item *item, int maxwidth, int verbose, color = BRANCH_COLOR_CURRENT; } - strbuf_addf(&name, "%s%s", prefix, item->name); - if (verbose) + strbuf_addf(&name, "%s%s", prefix_to_show, desc); + if (filter->verbose) { + int utf8_compensation = strlen(name.buf) - utf8_strwidth(name.buf); strbuf_addf(&out, "%c %s%-*s%s", c, branch_get_color(color), - maxwidth, name.buf, + maxwidth + utf8_compensation, name.buf, branch_get_color(BRANCH_COLOR_RESET)); - else + } else strbuf_addf(&out, "%c %s%s%s", c, branch_get_color(color), name.buf, branch_get_color(BRANCH_COLOR_RESET)); - if (item->dest) - strbuf_addf(&out, " -> %s", item->dest); - else if (verbose) + if (item->symref) { + const char *symref = item->symref; + if (prefix_to_skip) + skip_prefix(symref, prefix_to_skip, &symref); + strbuf_addf(&out, " -> %s", symref); + } + else if (filter->verbose) /* " f7c0c00 [ahead 58, behind 197] vcs-svn: drop obj_pool.h" */ - add_verbose_info(&out, item, verbose, abbrev); - printf("%s\n", out.buf); + add_verbose_info(&out, item, filter, desc); + if (column_active(colopts)) { + assert(!filter->verbose && "--column and --verbose are incompatible"); + string_list_append(&output, out.buf); + } else { + printf("%s\n", out.buf); + } strbuf_release(&name); strbuf_release(&out); + free(to_free); } -static int calc_maxwidth(struct ref_list *refs) +static int calc_maxwidth(struct ref_array *refs, int remote_bonus) { - int i, w = 0; - for (i = 0; i < refs->index; i++) { - if (!matches_merge_filter(refs->list[i].commit)) - continue; - if (refs->list[i].len > w) - w = refs->list[i].len; + int i, max = 0; + for (i = 0; i < refs->nr; i++) { + struct ref_array_item *it = refs->items[i]; + const char *desc = it->refname; + int w; + + skip_prefix(it->refname, "refs/heads/", &desc); + skip_prefix(it->refname, "refs/remotes/", &desc); + w = utf8_strwidth(desc); + + if (it->kind == FILTER_REFS_REMOTES) + w += remote_bonus; + if (w > max) + max = w; } - return w; + return max; } - -static void show_detached(struct ref_list *ref_list) +static void print_ref_list(struct ref_filter *filter, struct ref_sorting *sorting) { - struct commit *head_commit = lookup_commit_reference_gently(head_sha1, 1); - - if (head_commit && is_descendant_of(head_commit, ref_list->with_commit)) { - struct ref_item item; - item.name = xstrdup(_("(no branch)")); - item.len = strlen(item.name); - item.kind = REF_LOCAL_BRANCH; - item.dest = NULL; - item.commit = head_commit; - if (item.len > ref_list->maxwidth) - ref_list->maxwidth = item.len; - print_ref_item(&item, ref_list->maxwidth, ref_list->verbose, ref_list->abbrev, 1, ""); - free(item.name); - } + int i; + struct ref_array array; + int maxwidth = 0; + const char *remote_prefix = ""; + + /* + * If we are listing more than just remote branches, + * then remote branches will have a "remotes/" prefix. + * We need to account for this in the width. + */ + if (filter->kind != FILTER_REFS_REMOTES) + remote_prefix = "remotes/"; + + memset(&array, 0, sizeof(array)); + + verify_ref_format("%(refname)%(symref)"); + filter_refs(&array, filter, filter->kind | FILTER_REFS_INCLUDE_BROKEN); + + if (filter->verbose) + maxwidth = calc_maxwidth(&array, strlen(remote_prefix)); + + /* + * If no sorting parameter is given then we default to sorting + * by 'refname'. This would give us an alphabetically sorted + * array with the 'HEAD' ref at the beginning followed by + * local branches 'refs/heads/...' and finally remote-tacking + * branches 'refs/remotes/...'. + */ + if (!sorting) + sorting = ref_default_sorting(); + ref_array_sort(sorting, &array); + + for (i = 0; i < array.nr; i++) + format_and_print_ref_item(array.items[i], maxwidth, filter, remote_prefix); + + ref_array_clear(&array); } -static int print_ref_list(int kinds, int detached, int verbose, int abbrev, struct commit_list *with_commit, const char **pattern) +static void reject_rebase_or_bisect_branch(const char *target) { + struct worktree **worktrees = get_worktrees(); int i; - struct append_ref_cb cb; - struct ref_list ref_list; - - memset(&ref_list, 0, sizeof(ref_list)); - ref_list.kinds = kinds; - ref_list.verbose = verbose; - ref_list.abbrev = abbrev; - ref_list.with_commit = with_commit; - if (merge_filter != NO_FILTER) - init_revisions(&ref_list.revs, NULL); - cb.ref_list = &ref_list; - cb.pattern = pattern; - cb.ret = 0; - for_each_rawref(append_ref, &cb); - if (merge_filter != NO_FILTER) { - struct commit *filter; - filter = lookup_commit_reference_gently(merge_filter_ref, 0); - filter->object.flags |= UNINTERESTING; - add_pending_object(&ref_list.revs, - (struct object *) filter, ""); - ref_list.revs.limited = 1; - prepare_revision_walk(&ref_list.revs); - if (verbose) - ref_list.maxwidth = calc_maxwidth(&ref_list); - } - qsort(ref_list.list, ref_list.index, sizeof(struct ref_item), ref_cmp); - - detached = (detached && (kinds & REF_LOCAL_BRANCH)); - if (detached && match_patterns(pattern, "HEAD")) - show_detached(&ref_list); - - for (i = 0; i < ref_list.index; i++) { - int current = !detached && - (ref_list.list[i].kind == REF_LOCAL_BRANCH) && - !strcmp(ref_list.list[i].name, head); - char *prefix = (kinds != REF_REMOTE_BRANCH && - ref_list.list[i].kind == REF_REMOTE_BRANCH) - ? "remotes/" : ""; - print_ref_item(&ref_list.list[i], ref_list.maxwidth, verbose, - abbrev, current, prefix); - } + for (i = 0; worktrees[i]; i++) { + struct worktree *wt = worktrees[i]; + + if (!wt->is_detached) + continue; - free_ref_list(&ref_list); + if (is_worktree_being_rebased(wt, target)) + die(_("Branch %s is being rebased at %s"), + target, wt->path); - if (cb.ret) - error(_("some refs could not be read")); + if (is_worktree_being_bisected(wt, target)) + die(_("Branch %s is being bisected at %s"), + target, wt->path); + } - return cb.ret; + free_worktrees(worktrees); } static void rename_branch(const char *oldname, const char *newname, int force) @@ -593,6 +578,8 @@ static void rename_branch(const char *oldname, const char *newname, int force) validate_new_branchname(newname, &newref, force, clobber_head_ok); + reject_rebase_or_bisect_branch(oldref.buf); + strbuf_addf(&logmsg, "Branch: renamed %s to %s", oldref.buf, newref.buf); @@ -603,8 +590,7 @@ static void rename_branch(const char *oldname, const char *newname, int force) if (recovery) warning(_("Renamed a misnamed branch '%s' away"), oldref.buf + 11); - /* no need to pass logmsg here as HEAD didn't really move */ - if (!strcmp(oldname, head) && create_symref("HEAD", newref.buf, NULL)) + if (replace_each_worktree_head_symref(oldref.buf, newref.buf)) die(_("Branch renamed to %s, but HEAD is not updated!"), newname); strbuf_addf(&oldsection, "branch.%s", oldref.buf + 11); @@ -617,119 +603,96 @@ static void rename_branch(const char *oldname, const char *newname, int force) strbuf_release(&newsection); } -static int opt_parse_merge_filter(const struct option *opt, const char *arg, int unset) -{ - merge_filter = ((opt->long_name[0] == 'n') - ? SHOW_NOT_MERGED - : SHOW_MERGED); - if (unset) - merge_filter = SHOW_NOT_MERGED; /* b/c for --no-merged */ - if (!arg) - arg = "HEAD"; - if (get_sha1(arg, merge_filter_ref)) - die(_("malformed object name %s"), arg); - return 0; -} - static const char edit_description[] = "BRANCH_DESCRIPTION"; static int edit_branch_description(const char *branch_name) { - FILE *fp; - int status; struct strbuf buf = STRBUF_INIT; struct strbuf name = STRBUF_INIT; read_branch_desc(&buf, branch_name); if (!buf.len || buf.buf[buf.len-1] != '\n') strbuf_addch(&buf, '\n'); - strbuf_addf(&buf, - "# Please edit the description for the branch\n" - "# %s\n" - "# Lines starting with '#' will be stripped.\n", - branch_name); - fp = fopen(git_path(edit_description), "w"); - if ((fwrite(buf.buf, 1, buf.len, fp) < buf.len) || fclose(fp)) { + strbuf_commented_addf(&buf, + "Please edit the description for the branch\n" + " %s\n" + "Lines starting with '%c' will be stripped.\n", + branch_name, comment_line_char); + if (write_file_gently(git_path(edit_description), "%s", buf.buf)) { strbuf_release(&buf); - return error(_("could not write branch description template: %s\n"), - strerror(errno)); + return error_errno(_("could not write branch description template")); } strbuf_reset(&buf); if (launch_editor(git_path(edit_description), &buf, NULL)) { strbuf_release(&buf); return -1; } - stripspace(&buf, 1); + strbuf_stripspace(&buf, 1); strbuf_addf(&name, "branch.%s.description", branch_name); - status = git_config_set(name.buf, buf.buf); + git_config_set(name.buf, buf.len ? buf.buf : NULL); strbuf_release(&name); strbuf_release(&buf); - return status; + return 0; } int cmd_branch(int argc, const char **argv, const char *prefix) { - int delete = 0, rename = 0, force_create = 0, list = 0; - int verbose = 0, abbrev = -1, detached = 0; + int delete = 0, rename = 0, force = 0, list = 0; int reflog = 0, edit_description = 0; + int quiet = 0, unset_upstream = 0; + const char *new_upstream = NULL; enum branch_track track; - int kinds = REF_LOCAL_BRANCH; - struct commit_list *with_commit = NULL; + struct ref_filter filter; + static struct ref_sorting *sorting = NULL, **sorting_tail = &sorting; struct option options[] = { - OPT_GROUP("Generic options"), - OPT__VERBOSE(&verbose, - "show hash and subject, give twice for upstream branch"), - OPT_SET_INT('t', "track", &track, "set up tracking mode (see git-pull(1))", + OPT_GROUP(N_("Generic options")), + OPT__VERBOSE(&filter.verbose, + N_("show hash and subject, give twice for upstream branch")), + OPT__QUIET(&quiet, N_("suppress informational messages")), + OPT_SET_INT('t', "track", &track, N_("set up tracking mode (see git-pull(1))"), BRANCH_TRACK_EXPLICIT), - OPT_SET_INT( 0, "set-upstream", &track, "change upstream info", + OPT_SET_INT( 0, "set-upstream", &track, N_("change upstream info"), BRANCH_TRACK_OVERRIDE), - OPT__COLOR(&branch_use_color, "use colored output"), - OPT_SET_INT('r', "remotes", &kinds, "act on remote-tracking branches", - REF_REMOTE_BRANCH), - { - OPTION_CALLBACK, 0, "contains", &with_commit, "commit", - "print only branches that contain the commit", - PARSE_OPT_LASTARG_DEFAULT, - parse_opt_with_commit, (intptr_t)"HEAD", - }, - { - OPTION_CALLBACK, 0, "with", &with_commit, "commit", - "print only branches that contain the commit", - PARSE_OPT_HIDDEN | PARSE_OPT_LASTARG_DEFAULT, - parse_opt_with_commit, (intptr_t) "HEAD", - }, - OPT__ABBREV(&abbrev), - - OPT_GROUP("Specific git-branch actions:"), - OPT_SET_INT('a', "all", &kinds, "list both remote-tracking and local branches", - REF_REMOTE_BRANCH | REF_LOCAL_BRANCH), - OPT_BIT('d', "delete", &delete, "delete fully merged branch", 1), - OPT_BIT('D', NULL, &delete, "delete branch (even if not merged)", 2), - OPT_BIT('m', "move", &rename, "move/rename a branch and its reflog", 1), - OPT_BIT('M', NULL, &rename, "move/rename a branch, even if target exists", 2), - OPT_BOOLEAN(0, "list", &list, "list branch names"), - OPT_BOOLEAN('l', "create-reflog", &reflog, "create the branch's reflog"), - OPT_BOOLEAN(0, "edit-description", &edit_description, - "edit the description for the branch"), - OPT__FORCE(&force_create, "force creation (when already exists)"), + OPT_STRING('u', "set-upstream-to", &new_upstream, N_("upstream"), N_("change the upstream info")), + OPT_BOOL(0, "unset-upstream", &unset_upstream, "Unset the upstream info"), + OPT__COLOR(&branch_use_color, N_("use colored output")), + OPT_SET_INT('r', "remotes", &filter.kind, N_("act on remote-tracking branches"), + FILTER_REFS_REMOTES), + OPT_CONTAINS(&filter.with_commit, N_("print only branches that contain the commit")), + OPT_WITH(&filter.with_commit, N_("print only branches that contain the commit")), + OPT__ABBREV(&filter.abbrev), + + OPT_GROUP(N_("Specific git-branch actions:")), + OPT_SET_INT('a', "all", &filter.kind, N_("list both remote-tracking and local branches"), + FILTER_REFS_REMOTES | FILTER_REFS_BRANCHES), + OPT_BIT('d', "delete", &delete, N_("delete fully merged branch"), 1), + OPT_BIT('D', NULL, &delete, N_("delete branch (even if not merged)"), 2), + OPT_BIT('m', "move", &rename, N_("move/rename a branch and its reflog"), 1), + OPT_BIT('M', NULL, &rename, N_("move/rename a branch, even if target exists"), 2), + OPT_BOOL(0, "list", &list, N_("list branch names")), + OPT_BOOL('l', "create-reflog", &reflog, N_("create the branch's reflog")), + OPT_BOOL(0, "edit-description", &edit_description, + N_("edit the description for the branch")), + OPT__FORCE(&force, N_("force creation, move/rename, deletion")), + OPT_MERGED(&filter, N_("print only branches that are merged")), + OPT_NO_MERGED(&filter, N_("print only branches that are not merged")), + OPT_COLUMN(0, "column", &colopts, N_("list branches in columns")), + OPT_CALLBACK(0 , "sort", sorting_tail, N_("key"), + N_("field name to sort on"), &parse_opt_ref_sorting), { - OPTION_CALLBACK, 0, "no-merged", &merge_filter_ref, - "commit", "print only not merged branches", - PARSE_OPT_LASTARG_DEFAULT | PARSE_OPT_NONEG, - opt_parse_merge_filter, (intptr_t) "HEAD", - }, - { - OPTION_CALLBACK, 0, "merged", &merge_filter_ref, - "commit", "print only merged branches", - PARSE_OPT_LASTARG_DEFAULT | PARSE_OPT_NONEG, - opt_parse_merge_filter, (intptr_t) "HEAD", + OPTION_CALLBACK, 0, "points-at", &filter.points_at, N_("object"), + N_("print only branches of the object"), 0, parse_opt_object_name }, OPT_END(), }; + memset(&filter, 0, sizeof(filter)); + filter.kind = FILTER_REFS_BRANCHES; + filter.abbrev = -1; + if (argc == 2 && !strcmp(argv[1], "-h")) usage_with_options(builtin_branch_usage, options); @@ -737,59 +700,174 @@ int cmd_branch(int argc, const char **argv, const char *prefix) track = git_branch_track; - head = resolve_refdup("HEAD", head_sha1, 0, NULL); + head = resolve_refdup("HEAD", 0, head_sha1, NULL); if (!head) die(_("Failed to resolve HEAD as a valid ref.")); - if (!strcmp(head, "HEAD")) { - detached = 1; - } else { - if (prefixcmp(head, "refs/heads/")) - die(_("HEAD not found below refs/heads!")); - head += 11; - } - hashcpy(merge_filter_ref, head_sha1); + if (!strcmp(head, "HEAD")) + filter.detached = 1; + else if (!skip_prefix(head, "refs/heads/", &head)) + die(_("HEAD not found below refs/heads!")); argc = parse_options(argc, argv, prefix, options, builtin_branch_usage, 0); - if (!delete && !rename && !edit_description && argc == 0) + if (!delete && !rename && !edit_description && !new_upstream && !unset_upstream && argc == 0) list = 1; - if (!!delete + !!rename + !!force_create + !!list > 1) + if (filter.with_commit || filter.merge != REF_FILTER_MERGED_NONE || filter.points_at.nr) + list = 1; + + if (!!delete + !!rename + !!new_upstream + + list + unset_upstream > 1) usage_with_options(builtin_branch_usage, options); - if (abbrev == -1) - abbrev = DEFAULT_ABBREV; + if (filter.abbrev == -1) + filter.abbrev = DEFAULT_ABBREV; + finalize_colopts(&colopts, -1); + if (filter.verbose) { + if (explicitly_enable_column(colopts)) + die(_("--column and --verbose are incompatible")); + colopts = 0; + } + + if (force) { + delete *= 2; + rename *= 2; + } - if (delete) - return delete_branches(argc, argv, delete > 1, kinds); - else if (list) - return print_ref_list(kinds, detached, verbose, abbrev, - with_commit, argv); + if (delete) { + if (!argc) + die(_("branch name required")); + return delete_branches(argc, argv, delete > 1, filter.kind, quiet); + } else if (list) { + /* git branch --local also shows HEAD when it is detached */ + if ((filter.kind & FILTER_REFS_BRANCHES) && filter.detached) + filter.kind |= FILTER_REFS_DETACHED_HEAD; + filter.name_patterns = argv; + print_ref_list(&filter, sorting); + print_columns(&output, colopts, NULL); + string_list_clear(&output, 0); + return 0; + } else if (edit_description) { const char *branch_name; - if (detached) - die("Cannot give description to detached HEAD"); - if (!argc) + struct strbuf branch_ref = STRBUF_INIT; + + if (!argc) { + if (filter.detached) + die(_("Cannot give description to detached HEAD")); branch_name = head; - else if (argc == 1) + } else if (argc == 1) branch_name = argv[0]; else - usage_with_options(builtin_branch_usage, options); + die(_("cannot edit description of more than one branch")); + + strbuf_addf(&branch_ref, "refs/heads/%s", branch_name); + if (!ref_exists(branch_ref.buf)) { + strbuf_release(&branch_ref); + + if (!argc) + return error(_("No commit on branch '%s' yet."), + branch_name); + else + return error(_("No branch named '%s'."), + branch_name); + } + strbuf_release(&branch_ref); + if (edit_branch_description(branch_name)) return 1; } else if (rename) { - if (argc == 1) + if (!argc) + die(_("branch name required")); + else if (argc == 1) rename_branch(head, argv[0], rename > 1); else if (argc == 2) rename_branch(argv[0], argv[1], rename > 1); else - usage_with_options(builtin_branch_usage, options); + die(_("too many branches for a rename operation")); + } else if (new_upstream) { + struct branch *branch = branch_get(argv[0]); + + if (argc > 1) + die(_("too many branches to set new upstream")); + + if (!branch) { + if (!argc || !strcmp(argv[0], "HEAD")) + die(_("could not set upstream of HEAD to %s when " + "it does not point to any branch."), + new_upstream); + die(_("no such branch '%s'"), argv[0]); + } + + if (!ref_exists(branch->refname)) + die(_("branch '%s' does not exist"), branch->name); + + /* + * create_branch takes care of setting up the tracking + * info and making sure new_upstream is correct + */ + create_branch(head, branch->name, new_upstream, 0, 0, 0, quiet, BRANCH_TRACK_OVERRIDE); + } else if (unset_upstream) { + struct branch *branch = branch_get(argv[0]); + struct strbuf buf = STRBUF_INIT; + + if (argc > 1) + die(_("too many branches to unset upstream")); + + if (!branch) { + if (!argc || !strcmp(argv[0], "HEAD")) + die(_("could not unset upstream of HEAD when " + "it does not point to any branch.")); + die(_("no such branch '%s'"), argv[0]); + } + + if (!branch_has_merge_config(branch)) + die(_("Branch '%s' has no upstream information"), branch->name); + + strbuf_addf(&buf, "branch.%s.remote", branch->name); + git_config_set_multivar(buf.buf, NULL, NULL, 1); + strbuf_reset(&buf); + strbuf_addf(&buf, "branch.%s.merge", branch->name); + git_config_set_multivar(buf.buf, NULL, NULL, 1); + strbuf_release(&buf); } else if (argc > 0 && argc <= 2) { - if (kinds != REF_LOCAL_BRANCH) + struct branch *branch = branch_get(argv[0]); + int branch_existed = 0, remote_tracking = 0; + struct strbuf buf = STRBUF_INIT; + + if (!strcmp(argv[0], "HEAD")) + die(_("it does not make sense to create 'HEAD' manually")); + + if (!branch) + die(_("no such branch '%s'"), argv[0]); + + if (filter.kind != FILTER_REFS_BRANCHES) die(_("-a and -r options to 'git branch' do not make sense with a branch name")); + + if (track == BRANCH_TRACK_OVERRIDE) + fprintf(stderr, _("The --set-upstream flag is deprecated and will be removed. Consider using --track or --set-upstream-to\n")); + + strbuf_addf(&buf, "refs/remotes/%s", branch->name); + remote_tracking = ref_exists(buf.buf); + strbuf_release(&buf); + + branch_existed = ref_exists(branch->refname); create_branch(head, argv[0], (argc == 2) ? argv[1] : head, - force_create, reflog, 0, track); + force, reflog, 0, quiet, track); + + /* + * We only show the instructions if the user gave us + * one branch which doesn't exist locally, but is the + * name of a remote-tracking branch. + */ + if (argc == 1 && track == BRANCH_TRACK_OVERRIDE && + !branch_existed && remote_tracking) { + fprintf(stderr, _("\nIf you wanted to make '%s' track '%s', do this:\n\n"), head, branch->name); + fprintf(stderr, " git branch -d %s\n", branch->name); + fprintf(stderr, " git branch --set-upstream-to %s\n", branch->name); + } + } else usage_with_options(builtin_branch_usage, options); diff --git a/builtin/bundle.c b/builtin/bundle.c index 92a8a6026a..4883a435a9 100644 --- a/builtin/bundle.c +++ b/builtin/bundle.c @@ -42,6 +42,10 @@ int cmd_bundle(int argc, const char **argv, const char *prefix) if (!strcmp(cmd, "verify")) { close(bundle_fd); + if (argc != 1) { + usage(builtin_bundle_usage); + return 1; + } if (verify_bundle(&header, 1)) return 1; fprintf(stderr, _("%s is okay\n"), bundle_file); @@ -52,6 +56,10 @@ int cmd_bundle(int argc, const char **argv, const char *prefix) return !!list_bundle_refs(&header, argc, argv); } if (!strcmp(cmd, "create")) { + if (argc < 2) { + usage(builtin_bundle_usage); + return 1; + } if (!startup_info->have_repository) die(_("Need a repository to create a bundle.")); return !!create_bundle(&header, bundle_file, argc, argv); diff --git a/builtin/cat-file.c b/builtin/cat-file.c index 07bd984084..618103fdee 100644 --- a/builtin/cat-file.c +++ b/builtin/cat-file.c @@ -4,116 +4,71 @@ * Copyright (C) Linus Torvalds, 2005 */ #include "cache.h" -#include "exec_cmd.h" -#include "tag.h" -#include "tree.h" #include "builtin.h" #include "parse-options.h" -#include "diff.h" #include "userdiff.h" +#include "streaming.h" +#include "tree-walk.h" +#include "sha1-array.h" + +struct batch_options { + int enabled; + int follow_symlinks; + int print_contents; + int buffer_output; + int all_objects; + const char *format; +}; -#define BATCH 1 -#define BATCH_CHECK 2 - -static void pprint_tag(const unsigned char *sha1, const char *buf, unsigned long size) -{ - /* the parser in tag.c is useless here. */ - const char *endp = buf + size; - const char *cp = buf; - - while (cp < endp) { - char c = *cp++; - if (c != '\n') - continue; - if (7 <= endp - cp && !memcmp("tagger ", cp, 7)) { - const char *tagger = cp; - - /* Found the tagger line. Copy out the contents - * of the buffer so far. - */ - write_or_die(1, buf, cp - buf); - - /* - * Do something intelligent, like pretty-printing - * the date. - */ - while (cp < endp) { - if (*cp++ == '\n') { - /* tagger to cp is a line - * that has ident and time. - */ - const char *sp = tagger; - char *ep; - unsigned long date; - long tz; - while (sp < cp && *sp != '>') - sp++; - if (sp == cp) { - /* give up */ - write_or_die(1, tagger, - cp - tagger); - break; - } - while (sp < cp && - !('0' <= *sp && *sp <= '9')) - sp++; - write_or_die(1, tagger, sp - tagger); - date = strtoul(sp, &ep, 10); - tz = strtol(ep, NULL, 10); - sp = show_date(date, tz, 0); - write_or_die(1, sp, strlen(sp)); - xwrite(1, "\n", 1); - break; - } - } - break; - } - if (cp < endp && *cp == '\n') - /* end of header */ - break; - } - /* At this point, we have copied out the header up to the end of - * the tagger line and cp points at one past \n. It could be the - * next header line after the tagger line, or it could be another - * \n that marks the end of the headers. We need to copy out the - * remainder as is. - */ - if (cp < endp) - write_or_die(1, cp, endp - cp); -} - -static int cat_one_file(int opt, const char *exp_type, const char *obj_name) +static int cat_one_file(int opt, const char *exp_type, const char *obj_name, + int unknown_type) { unsigned char sha1[20]; enum object_type type; char *buf; unsigned long size; struct object_context obj_context; + struct object_info oi = {NULL}; + struct strbuf sb = STRBUF_INIT; + unsigned flags = LOOKUP_REPLACE_OBJECT; - if (get_sha1_with_context(obj_name, sha1, &obj_context)) + if (unknown_type) + flags |= LOOKUP_UNKNOWN_OBJECT; + + if (get_sha1_with_context(obj_name, 0, sha1, &obj_context)) die("Not a valid object name %s", obj_name); buf = NULL; switch (opt) { case 't': - type = sha1_object_info(sha1, NULL); - if (type > 0) { - printf("%s\n", typename(type)); + oi.typename = &sb; + if (sha1_object_info_extended(sha1, &oi, flags) < 0) + die("git cat-file: could not get object info"); + if (sb.len) { + printf("%s\n", sb.buf); + strbuf_release(&sb); return 0; } break; case 's': - type = sha1_object_info(sha1, &size); - if (type > 0) { - printf("%lu\n", size); - return 0; - } - break; + oi.sizep = &size; + if (sha1_object_info_extended(sha1, &oi, flags) < 0) + die("git cat-file: could not get object info"); + printf("%lu\n", size); + return 0; case 'e': return !has_sha1_file(sha1); + case 'c': + if (!obj_context.path[0]) + die("git cat-file --textconv %s: <object> must be <sha1:path>", + obj_name); + + if (textconv_object(obj_context.path, obj_context.mode, sha1, 1, &buf, &size)) + break; + case 'p': type = sha1_object_info(sha1, NULL); if (type < 0) @@ -127,28 +82,37 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name) return cmd_ls_tree(2, ls_args, NULL); } + if (type == OBJ_BLOB) + return stream_blob_to_fd(1, sha1, NULL, 0); buf = read_sha1_file(sha1, &type, &size); if (!buf) die("Cannot read object %s", obj_name); - if (type == OBJ_TAG) { - pprint_tag(sha1, buf, size); - return 0; - } /* otherwise just spit out the data */ break; - case 'c': - if (!obj_context.path[0]) - die("git cat-file --textconv %s: <object> must be <sha1:path>", - obj_name); - - if (!textconv_object(obj_context.path, obj_context.mode, sha1, &buf, &size)) - die("git cat-file --textconv: unable to run textconv on %s", - obj_name); - break; - case 0: + if (type_from_string(exp_type) == OBJ_BLOB) { + unsigned char blob_sha1[20]; + if (sha1_object_info(sha1, NULL) == OBJ_TAG) { + char *buffer = read_sha1_file(sha1, &type, &size); + const char *target; + if (!skip_prefix(buffer, "object ", &target) || + get_sha1_hex(target, blob_sha1)) + die("%s not a valid tag", sha1_to_hex(sha1)); + free(buffer); + } else + hashcpy(blob_sha1, sha1); + + if (sha1_object_info(blob_sha1, NULL) == OBJ_BLOB) + return stream_blob_to_fd(1, blob_sha1, NULL, 0); + /* + * we attempted to dereference a tag to a blob + * and failed; there may be new dereference + * mechanisms this code is not aware of. + * fall-back to the usual case. + */ + } buf = read_object_with_reference(sha1, exp_type, &size, NULL); break; @@ -163,109 +127,384 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name) return 0; } -static int batch_one_object(const char *obj_name, int print_contents) -{ +struct expand_data { unsigned char sha1[20]; - enum object_type type = 0; + enum object_type type; unsigned long size; - void *contents = contents; + unsigned long disk_size; + const char *rest; + unsigned char delta_base_sha1[20]; - if (!obj_name) - return 1; + /* + * If mark_query is true, we do not expand anything, but rather + * just mark the object_info with items we wish to query. + */ + int mark_query; - if (get_sha1(obj_name, sha1)) { - printf("%s missing\n", obj_name); - fflush(stdout); + /* + * Whether to split the input on whitespace before feeding it to + * get_sha1; this is decided during the mark_query phase based on + * whether we have a %(rest) token in our format. + */ + int split_on_whitespace; + + /* + * After a mark_query run, this object_info is set up to be + * passed to sha1_object_info_extended. It will point to the data + * elements above, so you can retrieve the response from there. + */ + struct object_info info; + + /* + * This flag will be true if the requested batch format and options + * don't require us to call sha1_object_info, which can then be + * optimized out. + */ + unsigned skip_object_info : 1; +}; + +static int is_atom(const char *atom, const char *s, int slen) +{ + int alen = strlen(atom); + return alen == slen && !memcmp(atom, s, alen); +} + +static void expand_atom(struct strbuf *sb, const char *atom, int len, + void *vdata) +{ + struct expand_data *data = vdata; + + if (is_atom("objectname", atom, len)) { + if (!data->mark_query) + strbuf_addstr(sb, sha1_to_hex(data->sha1)); + } else if (is_atom("objecttype", atom, len)) { + if (data->mark_query) + data->info.typep = &data->type; + else + strbuf_addstr(sb, typename(data->type)); + } else if (is_atom("objectsize", atom, len)) { + if (data->mark_query) + data->info.sizep = &data->size; + else + strbuf_addf(sb, "%lu", data->size); + } else if (is_atom("objectsize:disk", atom, len)) { + if (data->mark_query) + data->info.disk_sizep = &data->disk_size; + else + strbuf_addf(sb, "%lu", data->disk_size); + } else if (is_atom("rest", atom, len)) { + if (data->mark_query) + data->split_on_whitespace = 1; + else if (data->rest) + strbuf_addstr(sb, data->rest); + } else if (is_atom("deltabase", atom, len)) { + if (data->mark_query) + data->info.delta_base_sha1 = data->delta_base_sha1; + else + strbuf_addstr(sb, sha1_to_hex(data->delta_base_sha1)); + } else + die("unknown format element: %.*s", len, atom); +} + +static size_t expand_format(struct strbuf *sb, const char *start, void *data) +{ + const char *end; + + if (*start != '(') return 0; + end = strchr(start + 1, ')'); + if (!end) + die("format element '%s' does not end in ')'", start); + + expand_atom(sb, start + 1, end - start - 1, data); + + return end - start + 1; +} + +static void batch_write(struct batch_options *opt, const void *data, int len) +{ + if (opt->buffer_output) { + if (fwrite(data, 1, len, stdout) != len) + die_errno("unable to write to stdout"); + } else + write_or_die(1, data, len); +} + +static void print_object_or_die(struct batch_options *opt, struct expand_data *data) +{ + const unsigned char *sha1 = data->sha1; + + assert(data->info.typep); + + if (data->type == OBJ_BLOB) { + if (opt->buffer_output) + fflush(stdout); + if (stream_blob_to_fd(1, sha1, NULL, 0) < 0) + die("unable to stream %s to stdout", sha1_to_hex(sha1)); } + else { + enum object_type type; + unsigned long size; + void *contents; - if (print_contents == BATCH) contents = read_sha1_file(sha1, &type, &size); - else - type = sha1_object_info(sha1, &size); + if (!contents) + die("object %s disappeared", sha1_to_hex(sha1)); + if (type != data->type) + die("object %s changed type!?", sha1_to_hex(sha1)); + if (data->info.sizep && size != data->size) + die("object %s changed size!?", sha1_to_hex(sha1)); + + batch_write(opt, contents, size); + free(contents); + } +} + +static void batch_object_write(const char *obj_name, struct batch_options *opt, + struct expand_data *data) +{ + struct strbuf buf = STRBUF_INIT; - if (type <= 0) { - printf("%s missing\n", obj_name); + if (!data->skip_object_info && + sha1_object_info_extended(data->sha1, &data->info, LOOKUP_REPLACE_OBJECT) < 0) { + printf("%s missing\n", obj_name ? obj_name : sha1_to_hex(data->sha1)); fflush(stdout); - if (print_contents == BATCH) - free(contents); - return 0; + return; } - printf("%s %s %lu\n", sha1_to_hex(sha1), typename(type), size); - fflush(stdout); + strbuf_expand(&buf, opt->format, expand_format, data); + strbuf_addch(&buf, '\n'); + batch_write(opt, buf.buf, buf.len); + strbuf_release(&buf); - if (print_contents == BATCH) { - write_or_die(1, contents, size); - printf("\n"); + if (opt->print_contents) { + print_object_or_die(opt, data); + batch_write(opt, "\n", 1); + } +} + +static void batch_one_object(const char *obj_name, struct batch_options *opt, + struct expand_data *data) +{ + struct object_context ctx; + int flags = opt->follow_symlinks ? GET_SHA1_FOLLOW_SYMLINKS : 0; + enum follow_symlinks_result result; + + result = get_sha1_with_context(obj_name, flags, data->sha1, &ctx); + if (result != FOUND) { + switch (result) { + case MISSING_OBJECT: + printf("%s missing\n", obj_name); + break; + case DANGLING_SYMLINK: + printf("dangling %"PRIuMAX"\n%s\n", + (uintmax_t)strlen(obj_name), obj_name); + break; + case SYMLINK_LOOP: + printf("loop %"PRIuMAX"\n%s\n", + (uintmax_t)strlen(obj_name), obj_name); + break; + case NOT_DIR: + printf("notdir %"PRIuMAX"\n%s\n", + (uintmax_t)strlen(obj_name), obj_name); + break; + default: + die("BUG: unknown get_sha1_with_context result %d\n", + result); + break; + } fflush(stdout); - free(contents); + return; } + if (ctx.mode == 0) { + printf("symlink %"PRIuMAX"\n%s\n", + (uintmax_t)ctx.symlink_path.len, + ctx.symlink_path.buf); + fflush(stdout); + return; + } + + batch_object_write(obj_name, opt, data); +} + +struct object_cb_data { + struct batch_options *opt; + struct expand_data *expand; +}; + +static void batch_object_cb(const unsigned char sha1[20], void *vdata) +{ + struct object_cb_data *data = vdata; + hashcpy(data->expand->sha1, sha1); + batch_object_write(NULL, data->opt, data->expand); +} + +static int batch_loose_object(const unsigned char *sha1, + const char *path, + void *data) +{ + sha1_array_append(data, sha1); return 0; } -static int batch_objects(int print_contents) +static int batch_packed_object(const unsigned char *sha1, + struct packed_git *pack, + uint32_t pos, + void *data) +{ + sha1_array_append(data, sha1); + return 0; +} + +static int batch_objects(struct batch_options *opt) { struct strbuf buf = STRBUF_INIT; + struct expand_data data; + int save_warning; + int retval = 0; + + if (!opt->format) + opt->format = "%(objectname) %(objecttype) %(objectsize)"; - while (strbuf_getline(&buf, stdin, '\n') != EOF) { - int error = batch_one_object(buf.buf, print_contents); - if (error) - return error; + /* + * Expand once with our special mark_query flag, which will prime the + * object_info to be handed to sha1_object_info_extended for each + * object. + */ + memset(&data, 0, sizeof(data)); + data.mark_query = 1; + strbuf_expand(&buf, opt->format, expand_format, &data); + data.mark_query = 0; + + if (opt->all_objects) { + struct object_info empty; + memset(&empty, 0, sizeof(empty)); + if (!memcmp(&data.info, &empty, sizeof(empty))) + data.skip_object_info = 1; } - return 0; + /* + * If we are printing out the object, then always fill in the type, + * since we will want to decide whether or not to stream. + */ + if (opt->print_contents) + data.info.typep = &data.type; + + if (opt->all_objects) { + struct sha1_array sa = SHA1_ARRAY_INIT; + struct object_cb_data cb; + + for_each_loose_object(batch_loose_object, &sa, 0); + for_each_packed_object(batch_packed_object, &sa, 0); + + cb.opt = opt; + cb.expand = &data; + sha1_array_for_each_unique(&sa, batch_object_cb, &cb); + + sha1_array_clear(&sa); + return 0; + } + + /* + * We are going to call get_sha1 on a potentially very large number of + * objects. In most large cases, these will be actual object sha1s. The + * cost to double-check that each one is not also a ref (just so we can + * warn) ends up dwarfing the actual cost of the object lookups + * themselves. We can work around it by just turning off the warning. + */ + save_warning = warn_on_object_refname_ambiguity; + warn_on_object_refname_ambiguity = 0; + + while (strbuf_getline(&buf, stdin) != EOF) { + if (data.split_on_whitespace) { + /* + * Split at first whitespace, tying off the beginning + * of the string and saving the remainder (or NULL) in + * data.rest. + */ + char *p = strpbrk(buf.buf, " \t"); + if (p) { + while (*p && strchr(" \t", *p)) + *p++ = '\0'; + } + data.rest = p; + } + + batch_one_object(buf.buf, opt, &data); + } + + strbuf_release(&buf); + warn_on_object_refname_ambiguity = save_warning; + return retval; } static const char * const cat_file_usage[] = { - "git cat-file (-t|-s|-e|-p|<type>|--textconv) <object>", - "git cat-file (--batch|--batch-check) < <list_of_objects>", + N_("git cat-file (-t [--allow-unknown-type]|-s [--allow-unknown-type]|-e|-p|<type>|--textconv) <object>"), + N_("git cat-file (--batch | --batch-check) [--follow-symlinks]"), NULL }; static int git_cat_file_config(const char *var, const char *value, void *cb) { - switch (userdiff_config(var, value)) { - case 0: - break; - case -1: + if (userdiff_config(var, value) < 0) return -1; - default: - return 0; - } return git_default_config(var, value, cb); } +static int batch_option_callback(const struct option *opt, + const char *arg, + int unset) +{ + struct batch_options *bo = opt->value; + + if (bo->enabled) { + return 1; + } + + bo->enabled = 1; + bo->print_contents = !strcmp(opt->long_name, "batch"); + bo->format = arg; + + return 0; +} + int cmd_cat_file(int argc, const char **argv, const char *prefix) { - int opt = 0, batch = 0; + int opt = 0; const char *exp_type = NULL, *obj_name = NULL; + struct batch_options batch = {0}; + int unknown_type = 0; const struct option options[] = { - OPT_GROUP("<type> can be one of: blob, tree, commit, tag"), - OPT_SET_INT('t', NULL, &opt, "show object type", 't'), - OPT_SET_INT('s', NULL, &opt, "show object size", 's'), - OPT_SET_INT('e', NULL, &opt, - "exit with zero when there's no error", 'e'), - OPT_SET_INT('p', NULL, &opt, "pretty-print object's content", 'p'), - OPT_SET_INT(0, "textconv", &opt, - "for blob objects, run textconv on object's content", 'c'), - OPT_SET_INT(0, "batch", &batch, - "show info and content of objects fed from the standard input", - BATCH), - OPT_SET_INT(0, "batch-check", &batch, - "show info about objects fed from the standard input", - BATCH_CHECK), + OPT_GROUP(N_("<type> can be one of: blob, tree, commit, tag")), + OPT_CMDMODE('t', NULL, &opt, N_("show object type"), 't'), + OPT_CMDMODE('s', NULL, &opt, N_("show object size"), 's'), + OPT_CMDMODE('e', NULL, &opt, + N_("exit with zero when there's no error"), 'e'), + OPT_CMDMODE('p', NULL, &opt, N_("pretty-print object's content"), 'p'), + OPT_CMDMODE(0, "textconv", &opt, + N_("for blob objects, run textconv on object's content"), 'c'), + OPT_BOOL(0, "allow-unknown-type", &unknown_type, + N_("allow -s and -t to work with broken/corrupt objects")), + OPT_BOOL(0, "buffer", &batch.buffer_output, N_("buffer --batch output")), + { OPTION_CALLBACK, 0, "batch", &batch, "format", + N_("show info and content of objects fed from the standard input"), + PARSE_OPT_OPTARG, batch_option_callback }, + { OPTION_CALLBACK, 0, "batch-check", &batch, "format", + N_("show info about objects fed from the standard input"), + PARSE_OPT_OPTARG, batch_option_callback }, + OPT_BOOL(0, "follow-symlinks", &batch.follow_symlinks, + N_("follow in-tree symlinks (used with --batch or --batch-check)")), + OPT_BOOL(0, "batch-all-objects", &batch.all_objects, + N_("show all objects with --batch or --batch-check")), OPT_END() }; git_config(git_cat_file_config, NULL); - if (argc != 3 && argc != 2) - usage_with_options(cat_file_usage, options); - + batch.buffer_output = -1; argc = parse_options(argc, argv, prefix, options, cat_file_usage, 0); if (opt) { @@ -274,19 +513,28 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix) else usage_with_options(cat_file_usage, options); } - if (!opt && !batch) { + if (!opt && !batch.enabled) { if (argc == 2) { exp_type = argv[0]; obj_name = argv[1]; } else usage_with_options(cat_file_usage, options); } - if (batch && (opt || argc)) { + if (batch.enabled && (opt || argc)) { usage_with_options(cat_file_usage, options); } - if (batch) - return batch_objects(batch); + if ((batch.follow_symlinks || batch.all_objects) && !batch.enabled) { + usage_with_options(cat_file_usage, options); + } + + if (batch.buffer_output < 0) + batch.buffer_output = batch.all_objects; + + if (batch.enabled) + return batch_objects(&batch); - return cat_one_file(opt, exp_type, obj_name); + if (unknown_type && opt != 't' && opt != 's') + die("git cat-file --allow-unknown-type: use with -s or -t"); + return cat_one_file(opt, exp_type, obj_name, unknown_type); } diff --git a/builtin/check-attr.c b/builtin/check-attr.c index 44c421eb0f..53a5a18c16 100644 --- a/builtin/check-attr.c +++ b/builtin/check-attr.c @@ -8,19 +8,19 @@ static int all_attrs; static int cached_attrs; static int stdin_paths; static const char * const check_attr_usage[] = { -"git check-attr [-a | --all | attr...] [--] pathname...", -"git check-attr --stdin [-a | --all | attr...] < <list-of-paths>", +N_("git check-attr [-a | --all | <attr>...] [--] <pathname>..."), +N_("git check-attr --stdin [-z] [-a | --all | <attr>...]"), NULL }; -static int null_term_line; +static int nul_term_line; static const struct option check_attr_options[] = { - OPT_BOOLEAN('a', "all", &all_attrs, "report all attributes set on file"), - OPT_BOOLEAN(0, "cached", &cached_attrs, "use .gitattributes only from the index"), - OPT_BOOLEAN(0 , "stdin", &stdin_paths, "read file names from stdin"), - OPT_BOOLEAN('z', NULL, &null_term_line, - "input paths are terminated by a null character"), + OPT_BOOL('a', "all", &all_attrs, N_("report all attributes set on file")), + OPT_BOOL(0, "cached", &cached_attrs, N_("use .gitattributes only from the index")), + OPT_BOOL(0 , "stdin", &stdin_paths, N_("read file names from stdin")), + OPT_BOOL('z', NULL, &nul_term_line, + N_("terminate input and output records by a NUL character")), OPT_END() }; @@ -38,8 +38,16 @@ static void output_attr(int cnt, struct git_attr_check *check, else if (ATTR_UNSET(value)) value = "unspecified"; - quote_c_style(file, NULL, stdout, 0); - printf(": %s: %s\n", git_attr_name(check[j].attr), value); + if (nul_term_line) { + printf("%s%c" /* path */ + "%s%c" /* attrname */ + "%s%c" /* attrvalue */, + file, 0, git_attr_name(check[j].attr), 0, value, 0); + } else { + quote_c_style(file, NULL, stdout, 0); + printf(": %s: %s\n", git_attr_name(check[j].attr), value); + } + } } @@ -64,23 +72,23 @@ static void check_attr(const char *prefix, int cnt, static void check_attr_stdin_paths(const char *prefix, int cnt, struct git_attr_check *check) { - struct strbuf buf, nbuf; - int line_termination = null_term_line ? 0 : '\n'; - - strbuf_init(&buf, 0); - strbuf_init(&nbuf, 0); - while (strbuf_getline(&buf, stdin, line_termination) != EOF) { - if (line_termination && buf.buf[0] == '"') { - strbuf_reset(&nbuf); - if (unquote_c_style(&nbuf, buf.buf, NULL)) + struct strbuf buf = STRBUF_INIT; + struct strbuf unquoted = STRBUF_INIT; + strbuf_getline_fn getline_fn; + + getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf; + while (getline_fn(&buf, stdin) != EOF) { + if (!nul_term_line && buf.buf[0] == '"') { + strbuf_reset(&unquoted); + if (unquote_c_style(&unquoted, buf.buf, NULL)) die("line is badly quoted"); - strbuf_swap(&buf, &nbuf); + strbuf_swap(&buf, &unquoted); } check_attr(prefix, cnt, check, buf.buf); maybe_flush_or_die(stdout, "attribute to stdout"); } strbuf_release(&buf); - strbuf_release(&nbuf); + strbuf_release(&unquoted); } static NORETURN void error_with_usage(const char *msg) @@ -94,6 +102,9 @@ int cmd_check_attr(int argc, const char **argv, const char *prefix) struct git_attr_check *check; int cnt, i, doubledash, filei; + if (!is_bare_repository()) + setup_work_tree(); + git_config(git_default_config, NULL); argc = parse_options(argc, argv, prefix, check_attr_options, diff --git a/builtin/check-ignore.c b/builtin/check-ignore.c new file mode 100644 index 0000000000..1d73d3ca3d --- /dev/null +++ b/builtin/check-ignore.c @@ -0,0 +1,187 @@ +#include "builtin.h" +#include "cache.h" +#include "dir.h" +#include "quote.h" +#include "pathspec.h" +#include "parse-options.h" + +static int quiet, verbose, stdin_paths, show_non_matching, no_index; +static const char * const check_ignore_usage[] = { +"git check-ignore [<options>] <pathname>...", +"git check-ignore [<options>] --stdin", +NULL +}; + +static int nul_term_line; + +static const struct option check_ignore_options[] = { + OPT__QUIET(&quiet, N_("suppress progress reporting")), + OPT__VERBOSE(&verbose, N_("be verbose")), + OPT_GROUP(""), + OPT_BOOL(0, "stdin", &stdin_paths, + N_("read file names from stdin")), + OPT_BOOL('z', NULL, &nul_term_line, + N_("terminate input and output records by a NUL character")), + OPT_BOOL('n', "non-matching", &show_non_matching, + N_("show non-matching input paths")), + OPT_BOOL(0, "no-index", &no_index, + N_("ignore index when checking")), + OPT_END() +}; + +static void output_exclude(const char *path, struct exclude *exclude) +{ + char *bang = (exclude && exclude->flags & EXC_FLAG_NEGATIVE) ? "!" : ""; + char *slash = (exclude && exclude->flags & EXC_FLAG_MUSTBEDIR) ? "/" : ""; + if (!nul_term_line) { + if (!verbose) { + write_name_quoted(path, stdout, '\n'); + } else { + if (exclude) { + quote_c_style(exclude->el->src, NULL, stdout, 0); + printf(":%d:%s%s%s\t", + exclude->srcpos, + bang, exclude->pattern, slash); + } + else { + printf("::\t"); + } + quote_c_style(path, NULL, stdout, 0); + fputc('\n', stdout); + } + } else { + if (!verbose) { + printf("%s%c", path, '\0'); + } else { + if (exclude) + printf("%s%c%d%c%s%s%s%c%s%c", + exclude->el->src, '\0', + exclude->srcpos, '\0', + bang, exclude->pattern, slash, '\0', + path, '\0'); + else + printf("%c%c%c%s%c", '\0', '\0', '\0', path, '\0'); + } + } +} + +static int check_ignore(struct dir_struct *dir, + const char *prefix, int argc, const char **argv) +{ + const char *full_path; + char *seen; + int num_ignored = 0, dtype = DT_UNKNOWN, i; + struct exclude *exclude; + struct pathspec pathspec; + + if (!argc) { + if (!quiet) + fprintf(stderr, "no pathspec given.\n"); + return 0; + } + + /* + * check-ignore just needs paths. Magic beyond :/ is really + * irrelevant. + */ + parse_pathspec(&pathspec, + PATHSPEC_ALL_MAGIC & ~PATHSPEC_FROMTOP, + PATHSPEC_SYMLINK_LEADING_PATH | + PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE | + PATHSPEC_KEEP_ORDER, + prefix, argv); + + /* + * look for pathspecs matching entries in the index, since these + * should not be ignored, in order to be consistent with + * 'git status', 'git add' etc. + */ + seen = find_pathspecs_matching_against_index(&pathspec); + for (i = 0; i < pathspec.nr; i++) { + full_path = pathspec.items[i].match; + exclude = NULL; + if (!seen[i]) { + exclude = last_exclude_matching(dir, full_path, &dtype); + } + if (!quiet && (exclude || show_non_matching)) + output_exclude(pathspec.items[i].original, exclude); + if (exclude) + num_ignored++; + } + free(seen); + + return num_ignored; +} + +static int check_ignore_stdin_paths(struct dir_struct *dir, const char *prefix) +{ + struct strbuf buf = STRBUF_INIT; + struct strbuf unquoted = STRBUF_INIT; + char *pathspec[2] = { NULL, NULL }; + strbuf_getline_fn getline_fn; + int num_ignored = 0; + + getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf; + while (getline_fn(&buf, stdin) != EOF) { + if (!nul_term_line && buf.buf[0] == '"') { + strbuf_reset(&unquoted); + if (unquote_c_style(&unquoted, buf.buf, NULL)) + die("line is badly quoted"); + strbuf_swap(&buf, &unquoted); + } + pathspec[0] = buf.buf; + num_ignored += check_ignore(dir, prefix, + 1, (const char **)pathspec); + maybe_flush_or_die(stdout, "check-ignore to stdout"); + } + strbuf_release(&buf); + strbuf_release(&unquoted); + return num_ignored; +} + +int cmd_check_ignore(int argc, const char **argv, const char *prefix) +{ + int num_ignored; + struct dir_struct dir; + + git_config(git_default_config, NULL); + + argc = parse_options(argc, argv, prefix, check_ignore_options, + check_ignore_usage, 0); + + if (stdin_paths) { + if (argc > 0) + die(_("cannot specify pathnames with --stdin")); + } else { + if (nul_term_line) + die(_("-z only makes sense with --stdin")); + if (argc == 0) + die(_("no path specified")); + } + if (quiet) { + if (argc > 1) + die(_("--quiet is only valid with a single pathname")); + if (verbose) + die(_("cannot have both --quiet and --verbose")); + } + if (show_non_matching && !verbose) + die(_("--non-matching is only valid with --verbose")); + + /* read_cache() is only necessary so we can watch out for submodules. */ + if (!no_index && read_cache() < 0) + die(_("index file corrupt")); + + memset(&dir, 0, sizeof(dir)); + setup_standard_excludes(&dir); + + if (stdin_paths) { + num_ignored = check_ignore_stdin_paths(&dir, prefix); + } else { + num_ignored = check_ignore(&dir, prefix, argc, argv); + maybe_flush_or_die(stdout, "ignore to stdout"); + } + + clear_directory(&dir); + + return !num_ignored; +} diff --git a/builtin/check-mailmap.c b/builtin/check-mailmap.c new file mode 100644 index 0000000000..cf0f54f6b9 --- /dev/null +++ b/builtin/check-mailmap.c @@ -0,0 +1,66 @@ +#include "builtin.h" +#include "mailmap.h" +#include "parse-options.h" +#include "string-list.h" + +static int use_stdin; +static const char * const check_mailmap_usage[] = { +N_("git check-mailmap [<options>] <contact>..."), +NULL +}; + +static const struct option check_mailmap_options[] = { + OPT_BOOL(0, "stdin", &use_stdin, N_("also read contacts from stdin")), + OPT_END() +}; + +static void check_mailmap(struct string_list *mailmap, const char *contact) +{ + const char *name, *mail; + size_t namelen, maillen; + struct ident_split ident; + + if (split_ident_line(&ident, contact, strlen(contact))) + die(_("unable to parse contact: %s"), contact); + + name = ident.name_begin; + namelen = ident.name_end - ident.name_begin; + mail = ident.mail_begin; + maillen = ident.mail_end - ident.mail_begin; + + map_user(mailmap, &mail, &maillen, &name, &namelen); + + if (namelen) + printf("%.*s ", (int)namelen, name); + printf("<%.*s>\n", (int)maillen, mail); +} + +int cmd_check_mailmap(int argc, const char **argv, const char *prefix) +{ + int i; + struct string_list mailmap = STRING_LIST_INIT_NODUP; + + git_config(git_default_config, NULL); + argc = parse_options(argc, argv, prefix, check_mailmap_options, + check_mailmap_usage, 0); + if (argc == 0 && !use_stdin) + die(_("no contacts specified")); + + read_mailmap(&mailmap, NULL); + + for (i = 0; i < argc; ++i) + check_mailmap(&mailmap, argv[i]); + maybe_flush_or_die(stdout, "stdout"); + + if (use_stdin) { + struct strbuf buf = STRBUF_INIT; + while (strbuf_getline_lf(&buf, stdin) != EOF) { + check_mailmap(&mailmap, buf.buf); + maybe_flush_or_die(stdout, "stdout"); + } + strbuf_release(&buf); + } + + clear_mailmap(&mailmap); + return 0; +} diff --git a/builtin/check-ref-format.c b/builtin/check-ref-format.c index 28a7320271..eac499450f 100644 --- a/builtin/check-ref-format.c +++ b/builtin/check-ref-format.c @@ -8,7 +8,7 @@ #include "strbuf.h" static const char builtin_check_ref_format_usage[] = -"git check-ref-format [--normalize] [options] <refname>\n" +"git check-ref-format [--normalize] [<options>] <refname>\n" " or: git check-ref-format --branch <branchname-shorthand>"; /* @@ -20,7 +20,7 @@ static const char builtin_check_ref_format_usage[] = */ static char *collapse_slashes(const char *refname) { - char *ret = xmalloc(strlen(refname) + 1); + char *ret = xmallocz(strlen(refname)); char ch; char prev = '/'; char *cp = ret; diff --git a/builtin/checkout-index.c b/builtin/checkout-index.c index c16d82b7de..92c69672e9 100644 --- a/builtin/checkout-index.c +++ b/builtin/checkout-index.c @@ -5,20 +5,20 @@ * */ #include "builtin.h" -#include "cache.h" +#include "lockfile.h" #include "quote.h" #include "cache-tree.h" #include "parse-options.h" #define CHECKOUT_ALL 4 -static int line_termination = '\n'; +static int nul_term_line; static int checkout_stage; /* default to checkout stage0 */ static int to_tempfile; -static char topath[4][PATH_MAX + 1]; +static char topath[4][TEMPORARY_FILENAME_LENGTH + 1]; static struct checkout state; -static void write_tempfile_record(const char *name, int prefix_length) +static void write_tempfile_record(const char *name, const char *prefix) { int i; @@ -35,14 +35,15 @@ static void write_tempfile_record(const char *name, int prefix_length) fputs(topath[checkout_stage], stdout); putchar('\t'); - write_name_quoted(name + prefix_length, stdout, line_termination); + write_name_quoted_relative(name, prefix, stdout, + nul_term_line ? '\0' : '\n'); for (i = 0; i < 4; i++) { topath[i][0] = 0; } } -static int checkout_file(const char *name, int prefix_length) +static int checkout_file(const char *name, const char *prefix) { int namelen = strlen(name); int pos = cache_name_pos(name, namelen); @@ -71,7 +72,7 @@ static int checkout_file(const char *name, int prefix_length) if (did_checkout) { if (to_tempfile) - write_tempfile_record(name, prefix_length); + write_tempfile_record(name, prefix); return errs > 0 ? -1 : 0; } @@ -106,7 +107,7 @@ static void checkout_all(const char *prefix, int prefix_length) if (last_ce && to_tempfile) { if (ce_namelen(last_ce) != ce_namelen(ce) || memcmp(last_ce->name, ce->name, ce_namelen(ce))) - write_tempfile_record(last_ce->name, prefix_length); + write_tempfile_record(last_ce->name, prefix); } if (checkout_entry(ce, &state, to_tempfile ? topath[ce_stage(ce)] : NULL) < 0) @@ -114,7 +115,7 @@ static void checkout_all(const char *prefix, int prefix_length) last_ce = ce; } if (last_ce && to_tempfile) - write_tempfile_record(last_ce->name, prefix_length); + write_tempfile_record(last_ce->name, prefix); if (errs) /* we have already done our error reporting. * exit with the same code as die(). @@ -123,41 +124,12 @@ static void checkout_all(const char *prefix, int prefix_length) } static const char * const builtin_checkout_index_usage[] = { - "git checkout-index [options] [--] [<file>...]", + N_("git checkout-index [<options>] [--] [<file>...]"), NULL }; static struct lock_file lock_file; -static int option_parse_u(const struct option *opt, - const char *arg, int unset) -{ - int *newfd = opt->value; - - state.refresh_cache = 1; - if (*newfd < 0) - *newfd = hold_locked_index(&lock_file, 1); - return 0; -} - -static int option_parse_z(const struct option *opt, - const char *arg, int unset) -{ - if (unset) - line_termination = '\n'; - else - line_termination = 0; - return 0; -} - -static int option_parse_prefix(const struct option *opt, - const char *arg, int unset) -{ - state.base_dir = arg; - state.base_dir_len = strlen(arg); - return 0; -} - static int option_parse_stage(const struct option *opt, const char *arg, int unset) { @@ -169,7 +141,7 @@ static int option_parse_stage(const struct option *opt, if ('1' <= ch && ch <= '3') checkout_stage = arg[0] - '0'; else - die("stage should be between 1 and 3 or all"); + die(_("stage should be between 1 and 3 or all")); } return 0; } @@ -182,30 +154,28 @@ int cmd_checkout_index(int argc, const char **argv, const char *prefix) int read_from_stdin = 0; int prefix_length; int force = 0, quiet = 0, not_new = 0; + int index_opt = 0; struct option builtin_checkout_index_options[] = { - OPT_BOOLEAN('a', "all", &all, - "checks out all files in the index"), - OPT__FORCE(&force, "forces overwrite of existing files"), + OPT_BOOL('a', "all", &all, + N_("check out all files in the index")), + OPT__FORCE(&force, N_("force overwrite of existing files")), OPT__QUIET(&quiet, - "no warning for existing files and files not in index"), - OPT_BOOLEAN('n', "no-create", ¬_new, - "don't checkout new files"), - { OPTION_CALLBACK, 'u', "index", &newfd, NULL, - "update stat information in the index file", - PARSE_OPT_NOARG, option_parse_u }, - { OPTION_CALLBACK, 'z', NULL, NULL, NULL, - "paths are separated with NUL character", - PARSE_OPT_NOARG, option_parse_z }, - OPT_BOOLEAN(0, "stdin", &read_from_stdin, - "read list of paths from the standard input"), - OPT_BOOLEAN(0, "temp", &to_tempfile, - "write the content to temporary files"), - OPT_CALLBACK(0, "prefix", NULL, "string", - "when creating files, prepend <string>", - option_parse_prefix), - OPT_CALLBACK(0, "stage", NULL, NULL, - "copy out the files from named stage", - option_parse_stage), + N_("no warning for existing files and files not in index")), + OPT_BOOL('n', "no-create", ¬_new, + N_("don't checkout new files")), + OPT_BOOL('u', "index", &index_opt, + N_("update stat information in the index file")), + OPT_BOOL('z', NULL, &nul_term_line, + N_("paths are separated with NUL character")), + OPT_BOOL(0, "stdin", &read_from_stdin, + N_("read list of paths from the standard input")), + OPT_BOOL(0, "temp", &to_tempfile, + N_("write the content to temporary files")), + OPT_STRING(0, "prefix", &state.base_dir, N_("string"), + N_("when creating files, prepend <string>")), + { OPTION_CALLBACK, 0, "stage", NULL, "1-3|all", + N_("copy out the files from named stage"), + PARSE_OPT_NONEG, option_parse_stage }, OPT_END() }; @@ -213,7 +183,6 @@ int cmd_checkout_index(int argc, const char **argv, const char *prefix) usage_with_options(builtin_checkout_index_usage, builtin_checkout_index_options); git_config(git_default_config, NULL); - state.base_dir = ""; prefix_length = prefix ? strlen(prefix) : 0; if (read_cache() < 0) { @@ -226,52 +195,55 @@ int cmd_checkout_index(int argc, const char **argv, const char *prefix) state.quiet = quiet; state.not_new = not_new; - if (state.base_dir_len || to_tempfile) { - /* when --prefix is specified we do not - * want to update cache. - */ - if (state.refresh_cache) { - rollback_lock_file(&lock_file); - newfd = -1; - } - state.refresh_cache = 0; + if (!state.base_dir) + state.base_dir = ""; + state.base_dir_len = strlen(state.base_dir); + + /* + * when --prefix is specified we do not want to update cache. + */ + if (index_opt && !state.base_dir_len && !to_tempfile) { + state.refresh_cache = 1; + state.istate = &the_index; + newfd = hold_locked_index(&lock_file, 1); } /* Check out named files first */ for (i = 0; i < argc; i++) { const char *arg = argv[i]; - const char *p; + char *p; if (all) die("git checkout-index: don't mix '--all' and explicit filenames"); if (read_from_stdin) die("git checkout-index: don't mix '--stdin' and explicit filenames"); p = prefix_path(prefix, prefix_length, arg); - checkout_file(p, prefix_length); - if (p < arg || p > arg + strlen(arg)) - free((char *)p); + checkout_file(p, prefix); + free(p); } if (read_from_stdin) { - struct strbuf buf = STRBUF_INIT, nbuf = STRBUF_INIT; + struct strbuf buf = STRBUF_INIT; + struct strbuf unquoted = STRBUF_INIT; + strbuf_getline_fn getline_fn; if (all) die("git checkout-index: don't mix '--all' and '--stdin'"); - while (strbuf_getline(&buf, stdin, line_termination) != EOF) { - const char *p; - if (line_termination && buf.buf[0] == '"') { - strbuf_reset(&nbuf); - if (unquote_c_style(&nbuf, buf.buf, NULL)) + getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf; + while (getline_fn(&buf, stdin) != EOF) { + char *p; + if (!nul_term_line && buf.buf[0] == '"') { + strbuf_reset(&unquoted); + if (unquote_c_style(&unquoted, buf.buf, NULL)) die("line is badly quoted"); - strbuf_swap(&buf, &nbuf); + strbuf_swap(&buf, &unquoted); } p = prefix_path(prefix, prefix_length, buf.buf); - checkout_file(p, prefix_length); - if (p < buf.buf || p > buf.buf + buf.len) - free((char *)p); + checkout_file(p, prefix); + free(p); } - strbuf_release(&nbuf); + strbuf_release(&unquoted); strbuf_release(&buf); } @@ -279,8 +251,7 @@ int cmd_checkout_index(int argc, const char **argv, const char *prefix) checkout_all(prefix, prefix_length); if (0 <= newfd && - (write_cache(newfd, active_cache, active_nr) || - commit_locked_index(&lock_file))) + write_locked_index(&the_index, &lock_file, COMMIT_LOCK)) die("Unable to write new index file"); return 0; } diff --git a/builtin/checkout.c b/builtin/checkout.c index f1984d9933..c3486bdec3 100644 --- a/builtin/checkout.c +++ b/builtin/checkout.c @@ -1,5 +1,5 @@ -#include "cache.h" #include "builtin.h" +#include "lockfile.h" #include "parse-options.h" #include "refs.h" #include "commit.h" @@ -18,26 +18,26 @@ #include "xdiff-interface.h" #include "ll-merge.h" #include "resolve-undo.h" +#include "submodule-config.h" #include "submodule.h" -#include "argv-array.h" static const char * const checkout_usage[] = { - "git checkout [options] <branch>", - "git checkout [options] [<branch>] -- <file>...", + N_("git checkout [<options>] <branch>"), + N_("git checkout [<options>] [<branch>] -- <file>..."), NULL, }; struct checkout_opts { + int patch_mode; int quiet; int merge; int force; int force_detach; int writeout_stage; - int writeout_error; int overwrite_ignore; - - /* not set by parse_options */ - int branch_exists; + int ignore_skipworktree; + int ignore_other_worktrees; + int show_progress; const char *new_branch; const char *new_branch_force; @@ -45,46 +45,67 @@ struct checkout_opts { int new_branch_log; enum branch_track track; struct diff_options diff_options; + + int branch_exists; + const char *prefix; + struct pathspec pathspec; + struct tree *source_tree; }; static int post_checkout_hook(struct commit *old, struct commit *new, int changed) { - return run_hook(NULL, "post-checkout", - sha1_to_hex(old ? old->object.sha1 : null_sha1), - sha1_to_hex(new ? new->object.sha1 : null_sha1), - changed ? "1" : "0", NULL); + return run_hook_le(NULL, "post-checkout", + sha1_to_hex(old ? old->object.oid.hash : null_sha1), + sha1_to_hex(new ? new->object.oid.hash : null_sha1), + changed ? "1" : "0", NULL); /* "new" can be NULL when checking out from the index before a commit exists. */ } -static int update_some(const unsigned char *sha1, const char *base, int baselen, +static int update_some(const unsigned char *sha1, struct strbuf *base, const char *pathname, unsigned mode, int stage, void *context) { int len; struct cache_entry *ce; + int pos; if (S_ISDIR(mode)) return READ_TREE_RECURSIVE; - len = baselen + strlen(pathname); + len = base->len + strlen(pathname); ce = xcalloc(1, cache_entry_size(len)); hashcpy(ce->sha1, sha1); - memcpy(ce->name, base, baselen); - memcpy(ce->name + baselen, pathname, len - baselen); - ce->ce_flags = create_ce_flags(len, 0) | CE_UPDATE; + memcpy(ce->name, base->buf, base->len); + memcpy(ce->name + base->len, pathname, len - base->len); + ce->ce_flags = create_ce_flags(0) | CE_UPDATE; + ce->ce_namelen = len; ce->ce_mode = create_ce_mode(mode); + + /* + * If the entry is the same as the current index, we can leave the old + * entry in place. Whether it is UPTODATE or not, checkout_entry will + * do the right thing. + */ + pos = cache_name_pos(ce->name, ce->ce_namelen); + if (pos >= 0) { + struct cache_entry *old = active_cache[pos]; + if (ce->ce_mode == old->ce_mode && + !hashcmp(ce->sha1, old->sha1)) { + old->ce_flags |= CE_UPDATE; + free(ce); + return 0; + } + } + add_cache_entry(ce, ADD_CACHE_OK_TO_ADD | ADD_CACHE_OK_TO_REPLACE); return 0; } -static int read_tree_some(struct tree *tree, const char **pathspec) +static int read_tree_some(struct tree *tree, const struct pathspec *pathspec) { - struct pathspec ps; - init_pathspec(&ps, pathspec); - read_tree_recursive(tree, "", 0, 0, &ps, update_some, NULL); - free_pathspec(&ps); + read_tree_recursive(tree, "", 0, 0, pathspec, update_some, NULL); /* update the index with the given tree's info * for all args, expanding wildcards, and exit @@ -93,7 +114,7 @@ static int read_tree_some(struct tree *tree, const char **pathspec) return 0; } -static int skip_same_name(struct cache_entry *ce, int pos) +static int skip_same_name(const struct cache_entry *ce, int pos) { while (++pos < active_nr && !strcmp(active_cache[pos]->name, ce->name)) @@ -101,7 +122,7 @@ static int skip_same_name(struct cache_entry *ce, int pos) return pos; } -static int check_stage(int stage, struct cache_entry *ce, int pos) +static int check_stage(int stage, const struct cache_entry *ce, int pos) { while (pos < active_nr && !strcmp(active_cache[pos]->name, ce->name)) { @@ -115,7 +136,7 @@ static int check_stage(int stage, struct cache_entry *ce, int pos) return error(_("path '%s' does not have their version"), ce->name); } -static int check_stages(unsigned stages, struct cache_entry *ce, int pos) +static int check_stages(unsigned stages, const struct cache_entry *ce, int pos) { unsigned seen = 0; const char *name = ce->name; @@ -214,56 +235,110 @@ static int checkout_merged(int pos, struct checkout *state) return status; } -static int checkout_paths(struct tree *source_tree, const char **pathspec, - const char *prefix, struct checkout_opts *opts) +static int checkout_paths(const struct checkout_opts *opts, + const char *revision) { int pos; struct checkout state; static char *ps_matched; unsigned char rev[20]; - int flag; struct commit *head; int errs = 0; - int stage = opts->writeout_stage; - int merge = opts->merge; - int newfd; - struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file)); + struct lock_file *lock_file; + + if (opts->track != BRANCH_TRACK_UNSPECIFIED) + die(_("'%s' cannot be used with updating paths"), "--track"); - newfd = hold_locked_index(lock_file, 1); - if (read_cache_preload(pathspec) < 0) + if (opts->new_branch_log) + die(_("'%s' cannot be used with updating paths"), "-l"); + + if (opts->force && opts->patch_mode) + die(_("'%s' cannot be used with updating paths"), "-f"); + + if (opts->force_detach) + die(_("'%s' cannot be used with updating paths"), "--detach"); + + if (opts->merge && opts->patch_mode) + die(_("'%s' cannot be used with %s"), "--merge", "--patch"); + + if (opts->force && opts->merge) + die(_("'%s' cannot be used with %s"), "-f", "-m"); + + if (opts->new_branch) + die(_("Cannot update paths and switch to branch '%s' at the same time."), + opts->new_branch); + + if (opts->patch_mode) + return run_add_interactive(revision, "--patch=checkout", + &opts->pathspec); + + lock_file = xcalloc(1, sizeof(struct lock_file)); + + hold_locked_index(lock_file, 1); + if (read_cache_preload(&opts->pathspec) < 0) return error(_("corrupt index file")); - if (source_tree) - read_tree_some(source_tree, pathspec); + if (opts->source_tree) + read_tree_some(opts->source_tree, &opts->pathspec); - for (pos = 0; pathspec[pos]; pos++) - ; - ps_matched = xcalloc(1, pos); + ps_matched = xcalloc(opts->pathspec.nr, 1); + /* + * Make sure all pathspecs participated in locating the paths + * to be checked out. + */ for (pos = 0; pos < active_nr; pos++) { struct cache_entry *ce = active_cache[pos]; - if (source_tree && !(ce->ce_flags & CE_UPDATE)) + ce->ce_flags &= ~CE_MATCHED; + if (!opts->ignore_skipworktree && ce_skip_worktree(ce)) continue; - match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, ps_matched); + if (opts->source_tree && !(ce->ce_flags & CE_UPDATE)) + /* + * "git checkout tree-ish -- path", but this entry + * is in the original index; it will not be checked + * out to the working tree and it does not matter + * if pathspec matched this entry. We will not do + * anything to this entry at all. + */ + continue; + /* + * Either this entry came from the tree-ish we are + * checking the paths out of, or we are checking out + * of the index. + * + * If it comes from the tree-ish, we already know it + * matches the pathspec and could just stamp + * CE_MATCHED to it from update_some(). But we still + * need ps_matched and read_tree_recursive (and + * eventually tree_entry_interesting) cannot fill + * ps_matched yet. Once it can, we can avoid calling + * match_pathspec() for _all_ entries when + * opts->source_tree != NULL. + */ + if (ce_path_match(ce, &opts->pathspec, ps_matched)) + ce->ce_flags |= CE_MATCHED; } - if (report_path_error(ps_matched, pathspec, prefix)) + if (report_path_error(ps_matched, &opts->pathspec, opts->prefix)) { + free(ps_matched); return 1; + } + free(ps_matched); /* "checkout -m path" to recreate conflicted state */ if (opts->merge) - unmerge_cache(pathspec); + unmerge_marked_index(&the_index); /* Any unmerged paths? */ for (pos = 0; pos < active_nr; pos++) { - struct cache_entry *ce = active_cache[pos]; - if (match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, NULL)) { + const struct cache_entry *ce = active_cache[pos]; + if (ce->ce_flags & CE_MATCHED) { if (!ce_stage(ce)) continue; if (opts->force) { warning(_("path '%s' is unmerged"), ce->name); - } else if (stage) { - errs |= check_stage(stage, ce, pos); + } else if (opts->writeout_stage) { + errs |= check_stage(opts->writeout_stage, ce, pos); } else if (opts->merge) { errs |= check_stages((1<<2) | (1<<3), ce, pos); } else { @@ -280,43 +355,41 @@ static int checkout_paths(struct tree *source_tree, const char **pathspec, memset(&state, 0, sizeof(state)); state.force = 1; state.refresh_cache = 1; + state.istate = &the_index; for (pos = 0; pos < active_nr; pos++) { struct cache_entry *ce = active_cache[pos]; - if (source_tree && !(ce->ce_flags & CE_UPDATE)) - continue; - if (match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, NULL)) { + if (ce->ce_flags & CE_MATCHED) { if (!ce_stage(ce)) { errs |= checkout_entry(ce, &state, NULL); continue; } - if (stage) - errs |= checkout_stage(stage, ce, pos, &state); - else if (merge) + if (opts->writeout_stage) + errs |= checkout_stage(opts->writeout_stage, ce, pos, &state); + else if (opts->merge) errs |= checkout_merged(pos, &state); pos = skip_same_name(ce, pos) - 1; } } - if (write_cache(newfd, active_cache, active_nr) || - commit_locked_index(lock_file)) + if (write_locked_index(&the_index, lock_file, COMMIT_LOCK)) die(_("unable to write new index file")); - read_ref_full("HEAD", rev, 0, &flag); + read_ref_full("HEAD", 0, rev, NULL); head = lookup_commit_reference_gently(rev, 1); errs |= post_checkout_hook(head, head, 0); return errs; } -static void show_local_changes(struct object *head, struct diff_options *opts) +static void show_local_changes(struct object *head, + const struct diff_options *opts) { struct rev_info rev; /* I think we want full paths, even if we're in a subdirectory. */ init_revisions(&rev, NULL); rev.diffopt.flags = opts->flags; rev.diffopt.output_format |= DIFF_FORMAT_NAME_STATUS; - if (diff_setup_done(&rev.diffopt) < 0) - die(_("diff_setup_done failed")); + diff_setup_done(&rev.diffopt); add_pending_object(&rev, head, NULL); run_diff_index(&rev, 0); } @@ -324,14 +397,15 @@ static void show_local_changes(struct object *head, struct diff_options *opts) static void describe_detached_head(const char *msg, struct commit *commit) { struct strbuf sb = STRBUF_INIT; - parse_commit(commit); - pp_commit_easy(CMIT_FMT_ONELINE, commit, &sb); + if (!parse_commit(commit)) + pp_commit_easy(CMIT_FMT_ONELINE, commit, &sb); fprintf(stderr, "%s %s... %s\n", msg, - find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV), sb.buf); + find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV), sb.buf); strbuf_release(&sb); } -static int reset_tree(struct tree *tree, struct checkout_opts *o, int worktree) +static int reset_tree(struct tree *tree, const struct checkout_opts *o, + int worktree, int *writeout_error) { struct unpack_trees_options opts; struct tree_desc tree_desc; @@ -343,14 +417,14 @@ static int reset_tree(struct tree *tree, struct checkout_opts *o, int worktree) opts.reset = 1; opts.merge = 1; opts.fn = oneway_merge; - opts.verbose_update = !o->quiet; + opts.verbose_update = o->show_progress; opts.src_index = &the_index; opts.dst_index = &the_index; parse_tree(tree); init_tree_desc(&tree_desc, tree->buffer, tree->size); switch (unpack_trees(1, &tree_desc, &opts)) { case -2: - o->writeout_error = 1; + *writeout_error = 1; /* * We return 0 nevertheless, as the index is all right * and more importantly we have made best efforts to @@ -368,6 +442,11 @@ struct branch_info { const char *name; /* The short name used */ const char *path; /* The full name of a real branch */ struct commit *commit; /* The named commit */ + /* + * if not null the branch is detached because it's already + * checked out in this checkout + */ + char *checkout; }; static void setup_branch_path(struct branch_info *branch) @@ -381,19 +460,21 @@ static void setup_branch_path(struct branch_info *branch) branch->path = strbuf_detach(&buf, NULL); } -static int merge_working_tree(struct checkout_opts *opts, - struct branch_info *old, struct branch_info *new) +static int merge_working_tree(const struct checkout_opts *opts, + struct branch_info *old, + struct branch_info *new, + int *writeout_error) { int ret; struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file)); - int newfd = hold_locked_index(lock_file, 1); + hold_locked_index(lock_file, 1); if (read_cache_preload(NULL) < 0) return error(_("corrupt index file")); resolve_undo_clear(); if (opts->force) { - ret = reset_tree(new->commit->tree, opts, 1); + ret = reset_tree(new->commit->tree, opts, 1, writeout_error); if (ret) return ret; } else { @@ -420,7 +501,7 @@ static int merge_working_tree(struct checkout_opts *opts, topts.update = 1; topts.merge = 1; topts.gently = opts->merge && old->commit; - topts.verbose_update = !opts->quiet; + topts.verbose_update = opts->show_progress; topts.fn = twoway_merge; if (opts->overwrite_ignore) { topts.dir = xcalloc(1, sizeof(*topts.dir)); @@ -428,10 +509,10 @@ static int merge_working_tree(struct checkout_opts *opts, setup_standard_excludes(topts.dir); } tree = parse_tree_indirect(old->commit ? - old->commit->object.sha1 : + old->commit->object.oid.hash : EMPTY_TREE_SHA1_BIN); init_tree_desc(&trees[0], tree->buffer, tree->size); - tree = parse_tree_indirect(new->commit->object.sha1); + tree = parse_tree_indirect(new->commit->object.oid.hash); init_tree_desc(&trees[1], tree->buffer, tree->size); ret = unpack_trees(2, trees, &topts); @@ -467,7 +548,7 @@ static int merge_working_tree(struct checkout_opts *opts, * entries in the index. */ - add_files_to_cache(NULL, NULL, 0); + add_files_to_cache(NULL, NULL, 0, 0); /* * NEEDSWORK: carrying over local changes * when branches have different end-of-line @@ -479,7 +560,8 @@ static int merge_working_tree(struct checkout_opts *opts, o.verbosity = 0; work = write_tree_from_memory(&o); - ret = reset_tree(new->commit->tree, opts, 1); + ret = reset_tree(new->commit->tree, opts, 1, + writeout_error); if (ret) return ret; o.ancestor = old->name; @@ -487,14 +569,20 @@ static int merge_working_tree(struct checkout_opts *opts, o.branch2 = "local"; merge_trees(&o, new->commit->tree, work, old->commit->tree, &result); - ret = reset_tree(new->commit->tree, opts, 0); + ret = reset_tree(new->commit->tree, opts, 0, + writeout_error); if (ret) return ret; } } - if (write_cache(newfd, active_cache, active_nr) || - commit_locked_index(lock_file)) + if (!active_cache_tree) + active_cache_tree = cache_tree(); + + if (!cache_tree_fully_valid(active_cache_tree)) + cache_tree_update(&the_index, WRITE_TREE_SILENT | WRITE_TREE_REPAIR); + + if (write_locked_index(&the_index, lock_file, COMMIT_LOCK)) die(_("unable to write new index file")); if (!opts->force && !opts->quiet) @@ -514,42 +602,29 @@ static void report_tracking(struct branch_info *new) strbuf_release(&sb); } -static void detach_advice(const char *old_path, const char *new_name) -{ - const char fmt[] = - "Note: checking out '%s'.\n\n" - "You are in 'detached HEAD' state. You can look around, make experimental\n" - "changes and commit them, and you can discard any commits you make in this\n" - "state without impacting any branches by performing another checkout.\n\n" - "If you want to create a new branch to retain commits you create, you may\n" - "do so (now or later) by using -b with the checkout command again. Example:\n\n" - " git checkout -b new_branch_name\n\n"; - - fprintf(stderr, fmt, new_name); -} - -static void update_refs_for_switch(struct checkout_opts *opts, +static void update_refs_for_switch(const struct checkout_opts *opts, struct branch_info *old, struct branch_info *new) { struct strbuf msg = STRBUF_INIT; - const char *old_desc; + const char *old_desc, *reflog_msg; if (opts->new_branch) { if (opts->new_orphan_branch) { if (opts->new_branch_log && !log_all_ref_updates) { - int temp; - char log_file[PATH_MAX]; - char *ref_name = mkpath("refs/heads/%s", opts->new_orphan_branch); - - temp = log_all_ref_updates; - log_all_ref_updates = 1; - if (log_ref_setup(ref_name, log_file, sizeof(log_file))) { - fprintf(stderr, _("Can not do reflog for '%s'\n"), - opts->new_orphan_branch); - log_all_ref_updates = temp; + int ret; + char *refname; + struct strbuf err = STRBUF_INIT; + + refname = mkpathdup("refs/heads/%s", opts->new_orphan_branch); + ret = safe_create_reflog(refname, 1, &err); + free(refname); + if (ret) { + fprintf(stderr, _("Can not do reflog for '%s': %s\n"), + opts->new_orphan_branch, err.buf); + strbuf_release(&err); return; } - log_all_ref_updates = temp; + strbuf_release(&err); } } else @@ -557,6 +632,7 @@ static void update_refs_for_switch(struct checkout_opts *opts, opts->new_branch_force ? 1 : 0, opts->new_branch_log, opts->new_branch_force ? 1 : 0, + opts->quiet, opts->track); new->name = opts->new_branch; setup_branch_path(new); @@ -564,22 +640,28 @@ static void update_refs_for_switch(struct checkout_opts *opts, old_desc = old->name; if (!old_desc && old->commit) - old_desc = sha1_to_hex(old->commit->object.sha1); - strbuf_addf(&msg, "checkout: moving from %s to %s", - old_desc ? old_desc : "(invalid)", new->name); + old_desc = oid_to_hex(&old->commit->object.oid); + + reflog_msg = getenv("GIT_REFLOG_ACTION"); + if (!reflog_msg) + strbuf_addf(&msg, "checkout: moving from %s to %s", + old_desc ? old_desc : "(invalid)", new->name); + else + strbuf_insert(&msg, 0, reflog_msg, strlen(reflog_msg)); if (!strcmp(new->name, "HEAD") && !new->path && !opts->force_detach) { /* Nothing to do. */ } else if (opts->force_detach || !new->path) { /* No longer on any branch. */ - update_ref(msg.buf, "HEAD", new->commit->object.sha1, NULL, - REF_NODEREF, DIE_ON_ERR); + update_ref(msg.buf, "HEAD", new->commit->object.oid.hash, NULL, + REF_NODEREF, UPDATE_REFS_DIE_ON_ERR); if (!opts->quiet) { if (old->path && advice_detached_head) - detach_advice(old->path, new->name); + detach_advice(new->name); describe_detached_head(_("HEAD is now at"), new->commit); } } else if (new->path) { /* Switch branches. */ - create_symref("HEAD", new->path, msg.buf); + if (create_symref("HEAD", new->path, msg.buf) < 0) + die(_("unable to update HEAD")); if (!opts->quiet) { if (old->path && !strcmp(new->path, old->path)) { if (opts->new_branch_force) @@ -599,12 +681,8 @@ static void update_refs_for_switch(struct checkout_opts *opts, } } if (old->path && old->name) { - char log_file[PATH_MAX], ref_file[PATH_MAX]; - - git_snpath(log_file, sizeof(log_file), "logs/%s", old->path); - git_snpath(ref_file, sizeof(ref_file), "%s", old->path); - if (!file_exists(ref_file) && file_exists(log_file)) - remove_path(log_file); + if (!ref_exists(old->path) && reflog_exists(old->path)) + delete_reflog(old->path); } } remove_branch_state(); @@ -615,21 +693,21 @@ static void update_refs_for_switch(struct checkout_opts *opts, } static int add_pending_uninteresting_ref(const char *refname, - const unsigned char *sha1, + const struct object_id *oid, int flags, void *cb_data) { - add_pending_sha1(cb_data, refname, sha1, flags | UNINTERESTING); + add_pending_sha1(cb_data, refname, oid->hash, UNINTERESTING); return 0; } static void describe_one_orphan(struct strbuf *sb, struct commit *commit) { - parse_commit(commit); strbuf_addstr(sb, " "); strbuf_addstr(sb, - find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV)); + find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV)); strbuf_addch(sb, ' '); - pp_commit_easy(CMIT_FMT_ONELINE, commit, sb); + if (!parse_commit(commit)) + pp_commit_easy(CMIT_FMT_ONELINE, commit, sb); strbuf_addch(sb, '\n'); } @@ -673,11 +751,18 @@ static void suggest_reattach(struct commit *commit, struct rev_info *revs) if (advice_detached_head) fprintf(stderr, - _( + Q_( + /* The singular version */ + "If you want to keep it by creating a new branch, " + "this may be a good time\nto do so with:\n\n" + " git branch <new-branch-name> %s\n\n", + /* The plural version */ "If you want to keep them by creating a new branch, " "this may be a good time\nto do so with:\n\n" - " git branch new_branch_name %s\n\n"), - sha1_to_hex(commit->object.sha1)); + " git branch <new-branch-name> %s\n\n", + /* Give ngettext() the count */ + lost), + find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV)); } /* @@ -685,72 +770,74 @@ static void suggest_reattach(struct commit *commit, struct rev_info *revs) * HEAD. If it is not reachable from any ref, this is the last chance * for the user to do so without resorting to reflog. */ -static void orphaned_commit_warning(struct commit *commit) +static void orphaned_commit_warning(struct commit *old, struct commit *new) { struct rev_info revs; - struct object *object = &commit->object; + struct object *object = &old->object; struct object_array refs; init_revisions(&revs, NULL); setup_revisions(0, NULL, &revs, NULL); object->flags &= ~UNINTERESTING; - add_pending_object(&revs, object, sha1_to_hex(object->sha1)); + add_pending_object(&revs, object, oid_to_hex(&object->oid)); for_each_ref(add_pending_uninteresting_ref, &revs); + add_pending_sha1(&revs, "HEAD", new->object.oid.hash, UNINTERESTING); refs = revs.pending; revs.leak_pending = 1; if (prepare_revision_walk(&revs)) die(_("internal error in revision walk")); - if (!(commit->object.flags & UNINTERESTING)) - suggest_reattach(commit, &revs); + if (!(old->object.flags & UNINTERESTING)) + suggest_reattach(old, &revs); else - describe_detached_head(_("Previous HEAD position was"), commit); + describe_detached_head(_("Previous HEAD position was"), old); clear_commit_marks_for_object_array(&refs, ALL_REV_FLAGS); free(refs.objects); } -static int switch_branches(struct checkout_opts *opts, struct branch_info *new) +static int switch_branches(const struct checkout_opts *opts, + struct branch_info *new) { int ret = 0; struct branch_info old; void *path_to_free; unsigned char rev[20]; - int flag; + int flag, writeout_error = 0; memset(&old, 0, sizeof(old)); - old.path = path_to_free = resolve_refdup("HEAD", rev, 0, &flag); + old.path = path_to_free = resolve_refdup("HEAD", 0, rev, &flag); old.commit = lookup_commit_reference_gently(rev, 1); if (!(flag & REF_ISSYMREF)) old.path = NULL; - if (old.path && !prefixcmp(old.path, "refs/heads/")) - old.name = old.path + strlen("refs/heads/"); + if (old.path) + skip_prefix(old.path, "refs/heads/", &old.name); if (!new->name) { new->name = "HEAD"; new->commit = old.commit; if (!new->commit) die(_("You are on a branch yet to be born")); - parse_commit(new->commit); + parse_commit_or_die(new->commit); } - ret = merge_working_tree(opts, &old, new); + ret = merge_working_tree(opts, &old, new, &writeout_error); if (ret) { free(path_to_free); return ret; } if (!opts->quiet && !old.path && old.commit && new->commit != old.commit) - orphaned_commit_warning(old.commit); + orphaned_commit_warning(old.commit, new->commit); update_refs_for_switch(opts, &old, new); ret = post_checkout_hook(old.commit, new->commit, 1); free(path_to_free); - return ret || opts->writeout_error; + return ret || writeout_error; } static int git_checkout_config(const char *var, const char *value, void *cb) @@ -761,65 +848,67 @@ static int git_checkout_config(const char *var, const char *value, void *cb) return 0; } - if (!prefixcmp(var, "submodule.")) + if (starts_with(var, "submodule.")) return parse_submodule_config_option(var, value); return git_xmerge_config(var, value, NULL); } -static int interactive_checkout(const char *revision, const char **pathspec, - struct checkout_opts *opts) -{ - return run_add_interactive(revision, "--patch=checkout", pathspec); -} - struct tracking_name_data { - const char *name; - char *remote; + /* const */ char *src_ref; + char *dst_ref; + unsigned char *dst_sha1; int unique; }; -static int check_tracking_name(const char *refname, const unsigned char *sha1, - int flags, void *cb_data) +static int check_tracking_name(struct remote *remote, void *cb_data) { struct tracking_name_data *cb = cb_data; - const char *slash; - - if (prefixcmp(refname, "refs/remotes/")) - return 0; - slash = strchr(refname + 13, '/'); - if (!slash || strcmp(slash + 1, cb->name)) + struct refspec query; + memset(&query, 0, sizeof(struct refspec)); + query.src = cb->src_ref; + if (remote_find_tracking(remote, &query) || + get_sha1(query.dst, cb->dst_sha1)) { + free(query.dst); return 0; - if (cb->remote) { + } + if (cb->dst_ref) { + free(query.dst); cb->unique = 0; return 0; } - cb->remote = xstrdup(refname); + cb->dst_ref = query.dst; return 0; } -static const char *unique_tracking_name(const char *name) +static const char *unique_tracking_name(const char *name, unsigned char *sha1) { - struct tracking_name_data cb_data = { NULL, NULL, 1 }; - cb_data.name = name; - for_each_ref(check_tracking_name, &cb_data); + struct tracking_name_data cb_data = { NULL, NULL, NULL, 1 }; + char src_ref[PATH_MAX]; + snprintf(src_ref, PATH_MAX, "refs/heads/%s", name); + cb_data.src_ref = src_ref; + cb_data.dst_sha1 = sha1; + for_each_remote(check_tracking_name, &cb_data); if (cb_data.unique) - return cb_data.remote; - free(cb_data.remote); + return cb_data.dst_ref; + free(cb_data.dst_ref); return NULL; } static int parse_branchname_arg(int argc, const char **argv, int dwim_new_local_branch_ok, struct branch_info *new, - struct tree **source_tree, - unsigned char rev[20], - const char **new_branch) + struct checkout_opts *opts, + unsigned char rev[20]) { + struct tree **source_tree = &opts->source_tree; + const char **new_branch = &opts->new_branch; int argcount = 0; unsigned char branch_rev[20]; const char *arg; - int has_dash_dash; + int dash_dash_pos; + int has_dash_dash = 0; + int i; /* * case 1: git checkout <ref> -- [<paths>] @@ -831,20 +920,30 @@ static int parse_branchname_arg(int argc, const char **argv, * * everything after the '--' must be paths. * - * case 3: git checkout <something> [<paths>] + * case 3: git checkout <something> [--] * - * With no paths, if <something> is a commit, that is to - * switch to the branch or detach HEAD at it. As a special case, - * if <something> is A...B (missing A or B means HEAD but you can - * omit at most one side), and if there is a unique merge base - * between A and B, A...B names that merge base. + * (a) If <something> is a commit, that is to + * switch to the branch or detach HEAD at it. As a special case, + * if <something> is A...B (missing A or B means HEAD but you can + * omit at most one side), and if there is a unique merge base + * between A and B, A...B names that merge base. * - * With no paths, if <something> is _not_ a commit, no -t nor -b - * was given, and there is a tracking branch whose name is - * <something> in one and only one remote, then this is a short-hand - * to fork local <something> from that remote-tracking branch. + * (b) If <something> is _not_ a commit, either "--" is present + * or <something> is not a path, no -t or -b was given, and + * and there is a tracking branch whose name is <something> + * in one and only one remote, then this is a short-hand to + * fork local <something> from that remote-tracking branch. * - * Otherwise <something> shall not be ambiguous. + * (c) Otherwise, if "--" is present, treat it like case (1). + * + * (d) Otherwise : + * - if it's a reference, treat it like case (1) + * - else if it's a path, treat it like case (2) + * - else: fail. + * + * case 4: git checkout <something> <paths> + * + * The first argument must not be ambiguous. * - If it's *only* a reference, treat it like case (1). * - If it's only a path, treat it like case (2). * - else: fail. @@ -853,28 +952,60 @@ static int parse_branchname_arg(int argc, const char **argv, if (!argc) return 0; - if (!strcmp(argv[0], "--")) /* case (2) */ - return 1; - arg = argv[0]; - has_dash_dash = (argc > 1) && !strcmp(argv[1], "--"); + dash_dash_pos = -1; + for (i = 0; i < argc; i++) { + if (!strcmp(argv[i], "--")) { + dash_dash_pos = i; + break; + } + } + if (dash_dash_pos == 0) + return 1; /* case (2) */ + else if (dash_dash_pos == 1) + has_dash_dash = 1; /* case (3) or (1) */ + else if (dash_dash_pos >= 2) + die(_("only one reference expected, %d given."), dash_dash_pos); if (!strcmp(arg, "-")) arg = "@{-1}"; if (get_sha1_mb(arg, rev)) { - if (has_dash_dash) /* case (1) */ - die(_("invalid reference: %s"), arg); - if (dwim_new_local_branch_ok && - !check_filename(NULL, arg) && - argc == 1) { - const char *remote = unique_tracking_name(arg); - if (!remote || get_sha1(remote, rev)) - return argcount; - *new_branch = arg; - arg = remote; - /* DWIMmed to create local branch */ - } else { + /* + * Either case (3) or (4), with <something> not being + * a commit, or an attempt to use case (1) with an + * invalid ref. + * + * It's likely an error, but we need to find out if + * we should auto-create the branch, case (3).(b). + */ + int recover_with_dwim = dwim_new_local_branch_ok; + + if (!has_dash_dash && + (check_filename(NULL, arg) || !no_wildcard(arg))) + recover_with_dwim = 0; + /* + * Accept "git checkout foo" and "git checkout foo --" + * as candidates for dwim. + */ + if (!(argc == 1 && !has_dash_dash) && + !(argc == 2 && has_dash_dash)) + recover_with_dwim = 0; + + if (recover_with_dwim) { + const char *remote = unique_tracking_name(arg, rev); + if (remote) { + *new_branch = arg; + arg = remote; + /* DWIMmed to create local branch, case (3).(b) */ + } else { + recover_with_dwim = 0; + } + } + + if (!recover_with_dwim) { + if (has_dash_dash) + die(_("invalid reference: %s"), arg); return argcount; } } @@ -898,13 +1029,13 @@ static int parse_branchname_arg(int argc, const char **argv, /* not a commit */ *source_tree = parse_tree_indirect(rev); } else { - parse_commit(new->commit); + parse_commit_or_die(new->commit); *source_tree = new->commit->tree; } if (!*source_tree) /* case (1): want a tree */ die(_("reference is not a tree: %s"), arg); - if (!has_dash_dash) {/* case (3 -> 1) */ + if (!has_dash_dash) {/* case (3).(d) -> (1) */ /* * Do not complain the most common case * git checkout branch @@ -922,45 +1053,120 @@ static int parse_branchname_arg(int argc, const char **argv, return argcount; } +static int switch_unborn_to_new_branch(const struct checkout_opts *opts) +{ + int status; + struct strbuf branch_ref = STRBUF_INIT; + + if (!opts->new_branch) + die(_("You are on a branch yet to be born")); + strbuf_addf(&branch_ref, "refs/heads/%s", opts->new_branch); + status = create_symref("HEAD", branch_ref.buf, "checkout -b"); + strbuf_release(&branch_ref); + if (!opts->quiet) + fprintf(stderr, _("Switched to a new branch '%s'\n"), + opts->new_branch); + return status; +} + +static int checkout_branch(struct checkout_opts *opts, + struct branch_info *new) +{ + if (opts->pathspec.nr) + die(_("paths cannot be used with switching branches")); + + if (opts->patch_mode) + die(_("'%s' cannot be used with switching branches"), + "--patch"); + + if (opts->writeout_stage) + die(_("'%s' cannot be used with switching branches"), + "--ours/--theirs"); + + if (opts->force && opts->merge) + die(_("'%s' cannot be used with '%s'"), "-f", "-m"); + + if (opts->force_detach && opts->new_branch) + die(_("'%s' cannot be used with '%s'"), + "--detach", "-b/-B/--orphan"); + + if (opts->new_orphan_branch) { + if (opts->track != BRANCH_TRACK_UNSPECIFIED) + die(_("'%s' cannot be used with '%s'"), "--orphan", "-t"); + } else if (opts->force_detach) { + if (opts->track != BRANCH_TRACK_UNSPECIFIED) + die(_("'%s' cannot be used with '%s'"), "--detach", "-t"); + } else if (opts->track == BRANCH_TRACK_UNSPECIFIED) + opts->track = git_branch_track; + + if (new->name && !new->commit) + die(_("Cannot switch branch to a non-commit '%s'"), + new->name); + + if (new->path && !opts->force_detach && !opts->new_branch && + !opts->ignore_other_worktrees) { + unsigned char sha1[20]; + int flag; + char *head_ref = resolve_refdup("HEAD", 0, sha1, &flag); + if (head_ref && + (!(flag & REF_ISSYMREF) || strcmp(head_ref, new->path))) + die_if_checked_out(new->path, 1); + free(head_ref); + } + + if (!new->commit && opts->new_branch) { + unsigned char rev[20]; + int flag; + + if (!read_ref_full("HEAD", 0, rev, &flag) && + (flag & REF_ISSYMREF) && is_null_sha1(rev)) + return switch_unborn_to_new_branch(opts); + } + return switch_branches(opts, new); +} + int cmd_checkout(int argc, const char **argv, const char *prefix) { struct checkout_opts opts; - unsigned char rev[20]; struct branch_info new; - struct tree *source_tree = NULL; char *conflict_style = NULL; - int patch_mode = 0; int dwim_new_local_branch = 1; struct option options[] = { - OPT__QUIET(&opts.quiet, "suppress progress reporting"), - OPT_STRING('b', NULL, &opts.new_branch, "branch", - "create and checkout a new branch"), - OPT_STRING('B', NULL, &opts.new_branch_force, "branch", - "create/reset and checkout a branch"), - OPT_BOOLEAN('l', NULL, &opts.new_branch_log, "create reflog for new branch"), - OPT_BOOLEAN(0, "detach", &opts.force_detach, "detach the HEAD at named commit"), - OPT_SET_INT('t', "track", &opts.track, "set upstream info for new branch", + OPT__QUIET(&opts.quiet, N_("suppress progress reporting")), + OPT_STRING('b', NULL, &opts.new_branch, N_("branch"), + N_("create and checkout a new branch")), + OPT_STRING('B', NULL, &opts.new_branch_force, N_("branch"), + N_("create/reset and checkout a branch")), + OPT_BOOL('l', NULL, &opts.new_branch_log, N_("create reflog for new branch")), + OPT_BOOL(0, "detach", &opts.force_detach, N_("detach the HEAD at named commit")), + OPT_SET_INT('t', "track", &opts.track, N_("set upstream info for new branch"), BRANCH_TRACK_EXPLICIT), - OPT_STRING(0, "orphan", &opts.new_orphan_branch, "new branch", "new unparented branch"), - OPT_SET_INT('2', "ours", &opts.writeout_stage, "checkout our version for unmerged files", + OPT_STRING(0, "orphan", &opts.new_orphan_branch, N_("new-branch"), N_("new unparented branch")), + OPT_SET_INT('2', "ours", &opts.writeout_stage, N_("checkout our version for unmerged files"), 2), - OPT_SET_INT('3', "theirs", &opts.writeout_stage, "checkout their version for unmerged files", + OPT_SET_INT('3', "theirs", &opts.writeout_stage, N_("checkout their version for unmerged files"), 3), - OPT__FORCE(&opts.force, "force checkout (throw away local modifications)"), - OPT_BOOLEAN('m', "merge", &opts.merge, "perform a 3-way merge with the new branch"), - OPT_BOOLEAN(0, "overwrite-ignore", &opts.overwrite_ignore, "update ignored files (default)"), - OPT_STRING(0, "conflict", &conflict_style, "style", - "conflict style (merge or diff3)"), - OPT_BOOLEAN('p', "patch", &patch_mode, "select hunks interactively"), - { OPTION_BOOLEAN, 0, "guess", &dwim_new_local_branch, NULL, - "second guess 'git checkout no-such-branch'", - PARSE_OPT_NOARG | PARSE_OPT_HIDDEN }, + OPT__FORCE(&opts.force, N_("force checkout (throw away local modifications)")), + OPT_BOOL('m', "merge", &opts.merge, N_("perform a 3-way merge with the new branch")), + OPT_BOOL(0, "overwrite-ignore", &opts.overwrite_ignore, N_("update ignored files (default)")), + OPT_STRING(0, "conflict", &conflict_style, N_("style"), + N_("conflict style (merge or diff3)")), + OPT_BOOL('p', "patch", &opts.patch_mode, N_("select hunks interactively")), + OPT_BOOL(0, "ignore-skip-worktree-bits", &opts.ignore_skipworktree, + N_("do not limit pathspecs to sparse entries only")), + OPT_HIDDEN_BOOL(0, "guess", &dwim_new_local_branch, + N_("second guess 'git checkout <no-such-branch>'")), + OPT_BOOL(0, "ignore-other-worktrees", &opts.ignore_other_worktrees, + N_("do not check if another worktree is holding the given ref")), + OPT_BOOL(0, "progress", &opts.show_progress, N_("force progress reporting")), OPT_END(), }; memset(&opts, 0, sizeof(opts)); memset(&new, 0, sizeof(new)); opts.overwrite_ignore = 1; + opts.prefix = prefix; + opts.show_progress = -1; gitmodules_config(); git_config(git_checkout_config, &opts); @@ -970,55 +1176,45 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) argc = parse_options(argc, argv, prefix, options, checkout_usage, PARSE_OPT_KEEP_DASHDASH); - /* we can assume from now on new_branch = !new_branch_force */ - if (opts.new_branch && opts.new_branch_force) - die(_("-B cannot be used with -b")); + if (opts.show_progress < 0) { + if (opts.quiet) + opts.show_progress = 0; + else + opts.show_progress = isatty(2); + } + + if (conflict_style) { + opts.merge = 1; /* implied */ + git_xmerge_config("merge.conflictstyle", conflict_style, NULL); + } + + if ((!!opts.new_branch + !!opts.new_branch_force + !!opts.new_orphan_branch) > 1) + die(_("-b, -B and --orphan are mutually exclusive")); - /* copy -B over to -b, so that we can just check the latter */ + /* + * From here on, new_branch will contain the branch to be checked out, + * and new_branch_force and new_orphan_branch will tell us which one of + * -b/-B/--orphan is being used. + */ if (opts.new_branch_force) opts.new_branch = opts.new_branch_force; - if (patch_mode && (opts.track > 0 || opts.new_branch - || opts.new_branch_log || opts.merge || opts.force - || opts.force_detach)) - die (_("--patch is incompatible with all other options")); - - if (opts.force_detach && (opts.new_branch || opts.new_orphan_branch)) - die(_("--detach cannot be used with -b/-B/--orphan")); - if (opts.force_detach && 0 < opts.track) - die(_("--detach cannot be used with -t")); + if (opts.new_orphan_branch) + opts.new_branch = opts.new_orphan_branch; - /* --track without -b should DWIM */ - if (0 < opts.track && !opts.new_branch) { + /* --track without -b/-B/--orphan should DWIM */ + if (opts.track != BRANCH_TRACK_UNSPECIFIED && !opts.new_branch) { const char *argv0 = argv[0]; if (!argc || !strcmp(argv0, "--")) die (_("--track needs a branch name")); - if (!prefixcmp(argv0, "refs/")) - argv0 += 5; - if (!prefixcmp(argv0, "remotes/")) - argv0 += 8; + skip_prefix(argv0, "refs/", &argv0); + skip_prefix(argv0, "remotes/", &argv0); argv0 = strchr(argv0, '/'); if (!argv0 || !argv0[1]) die (_("Missing branch name; try -b")); opts.new_branch = argv0 + 1; } - if (opts.new_orphan_branch) { - if (opts.new_branch) - die(_("--orphan and -b|-B are mutually exclusive")); - if (opts.track > 0) - die(_("--orphan cannot be used with -t")); - opts.new_branch = opts.new_orphan_branch; - } - - if (conflict_style) { - opts.merge = 1; /* implied */ - git_xmerge_config("merge.conflictstyle", conflict_style, NULL); - } - - if (opts.force && opts.merge) - die(_("git checkout: -f and -m are incompatible")); - /* * Extract branch name from command line arguments, so * all that is left is pathspecs. @@ -1033,65 +1229,57 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) * remote branches, erroring out for invalid or ambiguous cases. */ if (argc) { + unsigned char rev[20]; int dwim_ok = - !patch_mode && + !opts.patch_mode && dwim_new_local_branch && opts.track == BRANCH_TRACK_UNSPECIFIED && !opts.new_branch; int n = parse_branchname_arg(argc, argv, dwim_ok, - &new, &source_tree, rev, &opts.new_branch); + &new, &opts, rev); argv += n; argc -= n; } - if (opts.track == BRANCH_TRACK_UNSPECIFIED) - opts.track = git_branch_track; - if (argc) { - const char **pathspec = get_pathspec(prefix, argv); + parse_pathspec(&opts.pathspec, 0, + opts.patch_mode ? PATHSPEC_PREFIX_ORIGIN : 0, + prefix, argv); - if (!pathspec) + if (!opts.pathspec.nr) die(_("invalid path specification")); - if (patch_mode) - return interactive_checkout(new.name, pathspec, &opts); - - /* Checkout paths */ - if (opts.new_branch) { - if (argc == 1) { - die(_("git checkout: updating paths is incompatible with switching branches.\nDid you intend to checkout '%s' which can not be resolved as commit?"), argv[0]); - } else { - die(_("git checkout: updating paths is incompatible with switching branches.")); - } - } + /* + * Try to give more helpful suggestion. + * new_branch && argc > 1 will be caught later. + */ + if (opts.new_branch && argc == 1) + die(_("Cannot update paths and switch to branch '%s' at the same time.\n" + "Did you intend to checkout '%s' which can not be resolved as commit?"), + opts.new_branch, argv[0]); if (opts.force_detach) - die(_("git checkout: --detach does not take a path argument")); + die(_("git checkout: --detach does not take a path argument '%s'"), + argv[0]); if (1 < !!opts.writeout_stage + !!opts.force + !!opts.merge) - die(_("git checkout: --ours/--theirs, --force and --merge are incompatible when\nchecking out of the index.")); - - return checkout_paths(source_tree, pathspec, prefix, &opts); + die(_("git checkout: --ours/--theirs, --force and --merge are incompatible when\n" + "checking out of the index.")); } - if (patch_mode) - return interactive_checkout(new.name, NULL, &opts); - if (opts.new_branch) { struct strbuf buf = STRBUF_INIT; - opts.branch_exists = validate_new_branchname(opts.new_branch, &buf, - !!opts.new_branch_force, - !!opts.new_branch_force); + opts.branch_exists = + validate_new_branchname(opts.new_branch, &buf, + !!opts.new_branch_force, + !!opts.new_branch_force); strbuf_release(&buf); } - if (new.name && !new.commit) { - die(_("Cannot switch branch to a non-commit.")); - } - if (opts.writeout_stage) - die(_("--ours/--theirs is incompatible with switching branches.")); - - return switch_branches(&opts, &new); + if (opts.patch_mode || opts.pathspec.nr) + return checkout_paths(&opts, new.name); + else + return checkout_branch(&opts, &new); } diff --git a/builtin/clean.c b/builtin/clean.c index 0c7b3d0f4c..0371010afb 100644 --- a/builtin/clean.c +++ b/builtin/clean.c @@ -12,19 +12,132 @@ #include "parse-options.h" #include "string-list.h" #include "quote.h" +#include "column.h" +#include "color.h" +#include "pathspec.h" static int force = -1; /* unset */ +static int interactive; +static struct string_list del_list = STRING_LIST_INIT_DUP; +static unsigned int colopts; static const char *const builtin_clean_usage[] = { - "git clean [-d] [-f] [-n] [-q] [-e <pattern>] [-x | -X] [--] <paths>...", + N_("git clean [-d] [-f] [-i] [-n] [-q] [-e <pattern>] [-x | -X] [--] <paths>..."), NULL }; +static const char *msg_remove = N_("Removing %s\n"); +static const char *msg_would_remove = N_("Would remove %s\n"); +static const char *msg_skip_git_dir = N_("Skipping repository %s\n"); +static const char *msg_would_skip_git_dir = N_("Would skip repository %s\n"); +static const char *msg_warn_remove_failed = N_("failed to remove %s"); + +static int clean_use_color = -1; +static char clean_colors[][COLOR_MAXLEN] = { + GIT_COLOR_RESET, + GIT_COLOR_NORMAL, /* PLAIN */ + GIT_COLOR_BOLD_BLUE, /* PROMPT */ + GIT_COLOR_BOLD, /* HEADER */ + GIT_COLOR_BOLD_RED, /* HELP */ + GIT_COLOR_BOLD_RED, /* ERROR */ +}; +enum color_clean { + CLEAN_COLOR_RESET = 0, + CLEAN_COLOR_PLAIN = 1, + CLEAN_COLOR_PROMPT = 2, + CLEAN_COLOR_HEADER = 3, + CLEAN_COLOR_HELP = 4, + CLEAN_COLOR_ERROR = 5 +}; + +#define MENU_OPTS_SINGLETON 01 +#define MENU_OPTS_IMMEDIATE 02 +#define MENU_OPTS_LIST_ONLY 04 + +struct menu_opts { + const char *header; + const char *prompt; + int flags; +}; + +#define MENU_RETURN_NO_LOOP 10 + +struct menu_item { + char hotkey; + const char *title; + int selected; + int (*fn)(void); +}; + +enum menu_stuff_type { + MENU_STUFF_TYPE_STRING_LIST = 1, + MENU_STUFF_TYPE_MENU_ITEM +}; + +struct menu_stuff { + enum menu_stuff_type type; + int nr; + void *stuff; +}; + +static int parse_clean_color_slot(const char *var) +{ + if (!strcasecmp(var, "reset")) + return CLEAN_COLOR_RESET; + if (!strcasecmp(var, "plain")) + return CLEAN_COLOR_PLAIN; + if (!strcasecmp(var, "prompt")) + return CLEAN_COLOR_PROMPT; + if (!strcasecmp(var, "header")) + return CLEAN_COLOR_HEADER; + if (!strcasecmp(var, "help")) + return CLEAN_COLOR_HELP; + if (!strcasecmp(var, "error")) + return CLEAN_COLOR_ERROR; + return -1; +} + static int git_clean_config(const char *var, const char *value, void *cb) { - if (!strcmp(var, "clean.requireforce")) + const char *slot_name; + + if (starts_with(var, "column.")) + return git_column_config(var, value, "clean", &colopts); + + /* honors the color.interactive* config variables which also + applied in git-add--interactive and git-stash */ + if (!strcmp(var, "color.interactive")) { + clean_use_color = git_config_colorbool(var, value); + return 0; + } + if (skip_prefix(var, "color.interactive.", &slot_name)) { + int slot = parse_clean_color_slot(slot_name); + if (slot < 0) + return 0; + if (!value) + return config_error_nonbool(var); + return color_parse(value, clean_colors[slot]); + } + + if (!strcmp(var, "clean.requireforce")) { force = !git_config_bool(var, value); - return git_default_config(var, value, cb); + return 0; + } + + /* inspect the color.ui config variable and others */ + return git_color_default_config(var, value, cb); +} + +static const char *clean_get_color(enum color_clean ix) +{ + if (want_color(clean_use_color)) + return clean_colors[ix]; + return ""; +} + +static void clean_print_color(enum color_clean ix) +{ + printf("%s", clean_get_color(ix)); } static int exclude_cb(const struct option *opt, const char *arg, int unset) @@ -34,30 +147,736 @@ static int exclude_cb(const struct option *opt, const char *arg, int unset) return 0; } -int cmd_clean(int argc, const char **argv, const char *prefix) +static int remove_dirs(struct strbuf *path, const char *prefix, int force_flag, + int dry_run, int quiet, int *dir_gone) +{ + DIR *dir; + struct strbuf quoted = STRBUF_INIT; + struct dirent *e; + int res = 0, ret = 0, gone = 1, original_len = path->len, len; + struct string_list dels = STRING_LIST_INIT_DUP; + + *dir_gone = 1; + + if ((force_flag & REMOVE_DIR_KEEP_NESTED_GIT) && is_nonbare_repository_dir(path)) { + if (!quiet) { + quote_path_relative(path->buf, prefix, "ed); + printf(dry_run ? _(msg_would_skip_git_dir) : _(msg_skip_git_dir), + quoted.buf); + } + + *dir_gone = 0; + return 0; + } + + dir = opendir(path->buf); + if (!dir) { + /* an empty dir could be removed even if it is unreadble */ + res = dry_run ? 0 : rmdir(path->buf); + if (res) { + quote_path_relative(path->buf, prefix, "ed); + warning(_(msg_warn_remove_failed), quoted.buf); + *dir_gone = 0; + } + return res; + } + + strbuf_complete(path, '/'); + + len = path->len; + while ((e = readdir(dir)) != NULL) { + struct stat st; + if (is_dot_or_dotdot(e->d_name)) + continue; + + strbuf_setlen(path, len); + strbuf_addstr(path, e->d_name); + if (lstat(path->buf, &st)) + ; /* fall thru */ + else if (S_ISDIR(st.st_mode)) { + if (remove_dirs(path, prefix, force_flag, dry_run, quiet, &gone)) + ret = 1; + if (gone) { + quote_path_relative(path->buf, prefix, "ed); + string_list_append(&dels, quoted.buf); + } else + *dir_gone = 0; + continue; + } else { + res = dry_run ? 0 : unlink(path->buf); + if (!res) { + quote_path_relative(path->buf, prefix, "ed); + string_list_append(&dels, quoted.buf); + } else { + quote_path_relative(path->buf, prefix, "ed); + warning(_(msg_warn_remove_failed), quoted.buf); + *dir_gone = 0; + ret = 1; + } + continue; + } + + /* path too long, stat fails, or non-directory still exists */ + *dir_gone = 0; + ret = 1; + break; + } + closedir(dir); + + strbuf_setlen(path, original_len); + + if (*dir_gone) { + res = dry_run ? 0 : rmdir(path->buf); + if (!res) + *dir_gone = 1; + else { + quote_path_relative(path->buf, prefix, "ed); + warning(_(msg_warn_remove_failed), quoted.buf); + *dir_gone = 0; + ret = 1; + } + } + + if (!*dir_gone && !quiet) { + int i; + for (i = 0; i < dels.nr; i++) + printf(dry_run ? _(msg_would_remove) : _(msg_remove), dels.items[i].string); + } + string_list_clear(&dels, 0); + return ret; +} + +static void pretty_print_dels(void) +{ + struct string_list list = STRING_LIST_INIT_DUP; + struct string_list_item *item; + struct strbuf buf = STRBUF_INIT; + const char *qname; + struct column_options copts; + + for_each_string_list_item(item, &del_list) { + qname = quote_path_relative(item->string, NULL, &buf); + string_list_append(&list, qname); + } + + /* + * always enable column display, we only consult column.* + * about layout strategy and stuff + */ + colopts = (colopts & ~COL_ENABLE_MASK) | COL_ENABLED; + memset(&copts, 0, sizeof(copts)); + copts.indent = " "; + copts.padding = 2; + print_columns(&list, colopts, &copts); + strbuf_release(&buf); + string_list_clear(&list, 0); +} + +static void pretty_print_menus(struct string_list *menu_list) +{ + unsigned int local_colopts = 0; + struct column_options copts; + + local_colopts = COL_ENABLED | COL_ROW; + memset(&copts, 0, sizeof(copts)); + copts.indent = " "; + copts.padding = 2; + print_columns(menu_list, local_colopts, &copts); +} + +static void prompt_help_cmd(int singleton) +{ + clean_print_color(CLEAN_COLOR_HELP); + printf_ln(singleton ? + _("Prompt help:\n" + "1 - select a numbered item\n" + "foo - select item based on unique prefix\n" + " - (empty) select nothing") : + _("Prompt help:\n" + "1 - select a single item\n" + "3-5 - select a range of items\n" + "2-3,6-9 - select multiple ranges\n" + "foo - select item based on unique prefix\n" + "-... - unselect specified items\n" + "* - choose all items\n" + " - (empty) finish selecting")); + clean_print_color(CLEAN_COLOR_RESET); +} + +/* + * display menu stuff with number prefix and hotkey highlight + */ +static void print_highlight_menu_stuff(struct menu_stuff *stuff, int **chosen) +{ + struct string_list menu_list = STRING_LIST_INIT_DUP; + struct strbuf menu = STRBUF_INIT; + struct menu_item *menu_item; + struct string_list_item *string_list_item; + int i; + + switch (stuff->type) { + default: + die("Bad type of menu_stuff when print menu"); + case MENU_STUFF_TYPE_MENU_ITEM: + menu_item = (struct menu_item *)stuff->stuff; + for (i = 0; i < stuff->nr; i++, menu_item++) { + const char *p; + int highlighted = 0; + + p = menu_item->title; + if ((*chosen)[i] < 0) + (*chosen)[i] = menu_item->selected ? 1 : 0; + strbuf_addf(&menu, "%s%2d: ", (*chosen)[i] ? "*" : " ", i+1); + for (; *p; p++) { + if (!highlighted && *p == menu_item->hotkey) { + strbuf_addstr(&menu, clean_get_color(CLEAN_COLOR_PROMPT)); + strbuf_addch(&menu, *p); + strbuf_addstr(&menu, clean_get_color(CLEAN_COLOR_RESET)); + highlighted = 1; + } else { + strbuf_addch(&menu, *p); + } + } + string_list_append(&menu_list, menu.buf); + strbuf_reset(&menu); + } + break; + case MENU_STUFF_TYPE_STRING_LIST: + i = 0; + for_each_string_list_item(string_list_item, (struct string_list *)stuff->stuff) { + if ((*chosen)[i] < 0) + (*chosen)[i] = 0; + strbuf_addf(&menu, "%s%2d: %s", + (*chosen)[i] ? "*" : " ", i+1, string_list_item->string); + string_list_append(&menu_list, menu.buf); + strbuf_reset(&menu); + i++; + } + break; + } + + pretty_print_menus(&menu_list); + + strbuf_release(&menu); + string_list_clear(&menu_list, 0); +} + +static int find_unique(const char *choice, struct menu_stuff *menu_stuff) +{ + struct menu_item *menu_item; + struct string_list_item *string_list_item; + int i, len, found = 0; + + len = strlen(choice); + switch (menu_stuff->type) { + default: + die("Bad type of menu_stuff when parse choice"); + case MENU_STUFF_TYPE_MENU_ITEM: + + menu_item = (struct menu_item *)menu_stuff->stuff; + for (i = 0; i < menu_stuff->nr; i++, menu_item++) { + if (len == 1 && *choice == menu_item->hotkey) { + found = i + 1; + break; + } + if (!strncasecmp(choice, menu_item->title, len)) { + if (found) { + if (len == 1) { + /* continue for hotkey matching */ + found = -1; + } else { + found = 0; + break; + } + } else { + found = i + 1; + } + } + } + break; + case MENU_STUFF_TYPE_STRING_LIST: + string_list_item = ((struct string_list *)menu_stuff->stuff)->items; + for (i = 0; i < menu_stuff->nr; i++, string_list_item++) { + if (!strncasecmp(choice, string_list_item->string, len)) { + if (found) { + found = 0; + break; + } + found = i + 1; + } + } + break; + } + return found; +} + + +/* + * Parse user input, and return choice(s) for menu (menu_stuff). + * + * Input + * (for single choice) + * 1 - select a numbered item + * foo - select item based on menu title + * - (empty) select nothing + * + * (for multiple choice) + * 1 - select a single item + * 3-5 - select a range of items + * 2-3,6-9 - select multiple ranges + * foo - select item based on menu title + * -... - unselect specified items + * * - choose all items + * - (empty) finish selecting + * + * The parse result will be saved in array **chosen, and + * return number of total selections. + */ +static int parse_choice(struct menu_stuff *menu_stuff, + int is_single, + struct strbuf input, + int **chosen) +{ + struct strbuf **choice_list, **ptr; + int nr = 0; + int i; + + if (is_single) { + choice_list = strbuf_split_max(&input, '\n', 0); + } else { + char *p = input.buf; + do { + if (*p == ',') + *p = ' '; + } while (*p++); + choice_list = strbuf_split_max(&input, ' ', 0); + } + + for (ptr = choice_list; *ptr; ptr++) { + char *p; + int choose = 1; + int bottom = 0, top = 0; + int is_range, is_number; + + strbuf_trim(*ptr); + if (!(*ptr)->len) + continue; + + /* Input that begins with '-'; unchoose */ + if (*(*ptr)->buf == '-') { + choose = 0; + strbuf_remove((*ptr), 0, 1); + } + + is_range = 0; + is_number = 1; + for (p = (*ptr)->buf; *p; p++) { + if ('-' == *p) { + if (!is_range) { + is_range = 1; + is_number = 0; + } else { + is_number = 0; + is_range = 0; + break; + } + } else if (!isdigit(*p)) { + is_number = 0; + is_range = 0; + break; + } + } + + if (is_number) { + bottom = atoi((*ptr)->buf); + top = bottom; + } else if (is_range) { + bottom = atoi((*ptr)->buf); + /* a range can be specified like 5-7 or 5- */ + if (!*(strchr((*ptr)->buf, '-') + 1)) + top = menu_stuff->nr; + else + top = atoi(strchr((*ptr)->buf, '-') + 1); + } else if (!strcmp((*ptr)->buf, "*")) { + bottom = 1; + top = menu_stuff->nr; + } else { + bottom = find_unique((*ptr)->buf, menu_stuff); + top = bottom; + } + + if (top <= 0 || bottom <= 0 || top > menu_stuff->nr || bottom > top || + (is_single && bottom != top)) { + clean_print_color(CLEAN_COLOR_ERROR); + printf_ln(_("Huh (%s)?"), (*ptr)->buf); + clean_print_color(CLEAN_COLOR_RESET); + continue; + } + + for (i = bottom; i <= top; i++) + (*chosen)[i-1] = choose; + } + + strbuf_list_free(choice_list); + + for (i = 0; i < menu_stuff->nr; i++) + nr += (*chosen)[i]; + return nr; +} + +/* + * Implement a git-add-interactive compatible UI, which is borrowed + * from git-add--interactive.perl. + * + * Return value: + * + * - Return an array of integers + * - , and it is up to you to free the allocated memory. + * - The array ends with EOF. + * - If user pressed CTRL-D (i.e. EOF), no selection returned. + */ +static int *list_and_choose(struct menu_opts *opts, struct menu_stuff *stuff) { + struct strbuf choice = STRBUF_INIT; + int *chosen, *result; + int nr = 0; + int eof = 0; int i; - int show_only = 0, remove_directories = 0, quiet = 0, ignored = 0; - int ignored_only = 0, config_set = 0, errors = 0; + + ALLOC_ARRAY(chosen, stuff->nr); + /* set chosen as uninitialized */ + for (i = 0; i < stuff->nr; i++) + chosen[i] = -1; + + for (;;) { + if (opts->header) { + printf_ln("%s%s%s", + clean_get_color(CLEAN_COLOR_HEADER), + _(opts->header), + clean_get_color(CLEAN_COLOR_RESET)); + } + + /* chosen will be initialized by print_highlight_menu_stuff */ + print_highlight_menu_stuff(stuff, &chosen); + + if (opts->flags & MENU_OPTS_LIST_ONLY) + break; + + if (opts->prompt) { + printf("%s%s%s%s", + clean_get_color(CLEAN_COLOR_PROMPT), + _(opts->prompt), + opts->flags & MENU_OPTS_SINGLETON ? "> " : ">> ", + clean_get_color(CLEAN_COLOR_RESET)); + } + + if (strbuf_getline_lf(&choice, stdin) != EOF) { + strbuf_trim(&choice); + } else { + eof = 1; + break; + } + + /* help for prompt */ + if (!strcmp(choice.buf, "?")) { + prompt_help_cmd(opts->flags & MENU_OPTS_SINGLETON); + continue; + } + + /* for a multiple-choice menu, press ENTER (empty) will return back */ + if (!(opts->flags & MENU_OPTS_SINGLETON) && !choice.len) + break; + + nr = parse_choice(stuff, + opts->flags & MENU_OPTS_SINGLETON, + choice, + &chosen); + + if (opts->flags & MENU_OPTS_SINGLETON) { + if (nr) + break; + } else if (opts->flags & MENU_OPTS_IMMEDIATE) { + break; + } + } + + if (eof) { + result = xmalloc(sizeof(int)); + *result = EOF; + } else { + int j = 0; + + /* + * recalculate nr, if return back from menu directly with + * default selections. + */ + if (!nr) { + for (i = 0; i < stuff->nr; i++) + nr += chosen[i]; + } + + result = xcalloc(st_add(nr, 1), sizeof(int)); + for (i = 0; i < stuff->nr && j < nr; i++) { + if (chosen[i]) + result[j++] = i; + } + result[j] = EOF; + } + + free(chosen); + strbuf_release(&choice); + return result; +} + +static int clean_cmd(void) +{ + return MENU_RETURN_NO_LOOP; +} + +static int filter_by_patterns_cmd(void) +{ + struct dir_struct dir; + struct strbuf confirm = STRBUF_INIT; + struct strbuf **ignore_list; + struct string_list_item *item; + struct exclude_list *el; + int changed = -1, i; + + for (;;) { + if (!del_list.nr) + break; + + if (changed) + pretty_print_dels(); + + clean_print_color(CLEAN_COLOR_PROMPT); + printf(_("Input ignore patterns>> ")); + clean_print_color(CLEAN_COLOR_RESET); + if (strbuf_getline_lf(&confirm, stdin) != EOF) + strbuf_trim(&confirm); + else + putchar('\n'); + + /* quit filter_by_pattern mode if press ENTER or Ctrl-D */ + if (!confirm.len) + break; + + memset(&dir, 0, sizeof(dir)); + el = add_exclude_list(&dir, EXC_CMDL, "manual exclude"); + ignore_list = strbuf_split_max(&confirm, ' ', 0); + + for (i = 0; ignore_list[i]; i++) { + strbuf_trim(ignore_list[i]); + if (!ignore_list[i]->len) + continue; + + add_exclude(ignore_list[i]->buf, "", 0, el, -(i+1)); + } + + changed = 0; + for_each_string_list_item(item, &del_list) { + int dtype = DT_UNKNOWN; + + if (is_excluded(&dir, item->string, &dtype)) { + *item->string = '\0'; + changed++; + } + } + + if (changed) { + string_list_remove_empty_items(&del_list, 0); + } else { + clean_print_color(CLEAN_COLOR_ERROR); + printf_ln(_("WARNING: Cannot find items matched by: %s"), confirm.buf); + clean_print_color(CLEAN_COLOR_RESET); + } + + strbuf_list_free(ignore_list); + clear_directory(&dir); + } + + strbuf_release(&confirm); + return 0; +} + +static int select_by_numbers_cmd(void) +{ + struct menu_opts menu_opts; + struct menu_stuff menu_stuff; + struct string_list_item *items; + int *chosen; + int i, j; + + menu_opts.header = NULL; + menu_opts.prompt = N_("Select items to delete"); + menu_opts.flags = 0; + + menu_stuff.type = MENU_STUFF_TYPE_STRING_LIST; + menu_stuff.stuff = &del_list; + menu_stuff.nr = del_list.nr; + + chosen = list_and_choose(&menu_opts, &menu_stuff); + items = del_list.items; + for (i = 0, j = 0; i < del_list.nr; i++) { + if (i < chosen[j]) { + *(items[i].string) = '\0'; + } else if (i == chosen[j]) { + /* delete selected item */ + j++; + continue; + } else { + /* end of chosen (chosen[j] == EOF), won't delete */ + *(items[i].string) = '\0'; + } + } + + string_list_remove_empty_items(&del_list, 0); + + free(chosen); + return 0; +} + +static int ask_each_cmd(void) +{ + struct strbuf confirm = STRBUF_INIT; + struct strbuf buf = STRBUF_INIT; + struct string_list_item *item; + const char *qname; + int changed = 0, eof = 0; + + for_each_string_list_item(item, &del_list) { + /* Ctrl-D should stop removing files */ + if (!eof) { + qname = quote_path_relative(item->string, NULL, &buf); + /* TRANSLATORS: Make sure to keep [y/N] as is */ + printf(_("Remove %s [y/N]? "), qname); + if (strbuf_getline_lf(&confirm, stdin) != EOF) { + strbuf_trim(&confirm); + } else { + putchar('\n'); + eof = 1; + } + } + if (!confirm.len || strncasecmp(confirm.buf, "yes", confirm.len)) { + *item->string = '\0'; + changed++; + } + } + + if (changed) + string_list_remove_empty_items(&del_list, 0); + + strbuf_release(&buf); + strbuf_release(&confirm); + return MENU_RETURN_NO_LOOP; +} + +static int quit_cmd(void) +{ + string_list_clear(&del_list, 0); + printf_ln(_("Bye.")); + return MENU_RETURN_NO_LOOP; +} + +static int help_cmd(void) +{ + clean_print_color(CLEAN_COLOR_HELP); + printf_ln(_( + "clean - start cleaning\n" + "filter by pattern - exclude items from deletion\n" + "select by numbers - select items to be deleted by numbers\n" + "ask each - confirm each deletion (like \"rm -i\")\n" + "quit - stop cleaning\n" + "help - this screen\n" + "? - help for prompt selection" + )); + clean_print_color(CLEAN_COLOR_RESET); + return 0; +} + +static void interactive_main_loop(void) +{ + while (del_list.nr) { + struct menu_opts menu_opts; + struct menu_stuff menu_stuff; + struct menu_item menus[] = { + {'c', "clean", 0, clean_cmd}, + {'f', "filter by pattern", 0, filter_by_patterns_cmd}, + {'s', "select by numbers", 0, select_by_numbers_cmd}, + {'a', "ask each", 0, ask_each_cmd}, + {'q', "quit", 0, quit_cmd}, + {'h', "help", 0, help_cmd}, + }; + int *chosen; + + menu_opts.header = N_("*** Commands ***"); + menu_opts.prompt = N_("What now"); + menu_opts.flags = MENU_OPTS_SINGLETON; + + menu_stuff.type = MENU_STUFF_TYPE_MENU_ITEM; + menu_stuff.stuff = menus; + menu_stuff.nr = sizeof(menus) / sizeof(struct menu_item); + + clean_print_color(CLEAN_COLOR_HEADER); + printf_ln(Q_("Would remove the following item:", + "Would remove the following items:", + del_list.nr)); + clean_print_color(CLEAN_COLOR_RESET); + + pretty_print_dels(); + + chosen = list_and_choose(&menu_opts, &menu_stuff); + + if (*chosen != EOF) { + int ret; + ret = menus[*chosen].fn(); + if (ret != MENU_RETURN_NO_LOOP) { + free(chosen); + chosen = NULL; + if (!del_list.nr) { + clean_print_color(CLEAN_COLOR_ERROR); + printf_ln(_("No more files to clean, exiting.")); + clean_print_color(CLEAN_COLOR_RESET); + break; + } + continue; + } + } else { + quit_cmd(); + } + + free(chosen); + chosen = NULL; + break; + } +} + +int cmd_clean(int argc, const char **argv, const char *prefix) +{ + int i, res; + int dry_run = 0, remove_directories = 0, quiet = 0, ignored = 0; + int ignored_only = 0, config_set = 0, errors = 0, gone = 1; int rm_flags = REMOVE_DIR_KEEP_NESTED_GIT; - struct strbuf directory = STRBUF_INIT; + struct strbuf abs_path = STRBUF_INIT; struct dir_struct dir; - static const char **pathspec; + struct pathspec pathspec; struct strbuf buf = STRBUF_INIT; struct string_list exclude_list = STRING_LIST_INIT_NODUP; + struct exclude_list *el; + struct string_list_item *item; const char *qname; - char *seen = NULL; struct option options[] = { - OPT__QUIET(&quiet, "do not print names of files removed"), - OPT__DRY_RUN(&show_only, "dry run"), - OPT__FORCE(&force, "force"), - OPT_BOOLEAN('d', NULL, &remove_directories, - "remove whole directories"), - { OPTION_CALLBACK, 'e', "exclude", &exclude_list, "pattern", - "add <pattern> to ignore rules", PARSE_OPT_NONEG, exclude_cb }, - OPT_BOOLEAN('x', NULL, &ignored, "remove ignored files, too"), - OPT_BOOLEAN('X', NULL, &ignored_only, - "remove only ignored files"), + OPT__QUIET(&quiet, N_("do not print names of files removed")), + OPT__DRY_RUN(&dry_run, N_("dry run")), + OPT__FORCE(&force, N_("force")), + OPT_BOOL('i', "interactive", &interactive, N_("interactive cleaning")), + OPT_BOOL('d', NULL, &remove_directories, + N_("remove whole directories")), + { OPTION_CALLBACK, 'e', "exclude", &exclude_list, N_("pattern"), + N_("add <pattern> to ignore rules"), PARSE_OPT_NONEG, exclude_cb }, + OPT_BOOL('x', NULL, &ignored, N_("remove ignored files, too")), + OPT_BOOL('X', NULL, &ignored_only, + N_("remove only ignored files")), OPT_END() }; @@ -77,13 +896,13 @@ int cmd_clean(int argc, const char **argv, const char *prefix) if (ignored && ignored_only) die(_("-x and -X cannot be used together")); - if (!show_only && !force) { + if (!interactive && !dry_run && !force) { if (config_set) - die(_("clean.requireForce set to true and neither -n nor -f given; " + die(_("clean.requireForce set to true and neither -i, -n, nor -f given; " "refusing to clean")); else - die(_("clean.requireForce defaults to true and neither -n nor -f given; " - "refusing to clean")); + die(_("clean.requireForce defaults to true and neither -i, -n, nor -f given;" + " refusing to clean")); } if (force > 1) @@ -97,96 +916,85 @@ int cmd_clean(int argc, const char **argv, const char *prefix) if (!ignored) setup_standard_excludes(&dir); + el = add_exclude_list(&dir, EXC_CMDL, "--exclude option"); for (i = 0; i < exclude_list.nr; i++) - add_exclude(exclude_list.items[i].string, "", 0, - &dir.exclude_list[EXC_CMDL]); - - pathspec = get_pathspec(prefix, argv); + add_exclude(exclude_list.items[i].string, "", 0, el, -(i+1)); - fill_directory(&dir, pathspec); + parse_pathspec(&pathspec, 0, + PATHSPEC_PREFER_CWD, + prefix, argv); - if (pathspec) - seen = xmalloc(argc > 0 ? argc : 1); + fill_directory(&dir, &pathspec); for (i = 0; i < dir.nr; i++) { struct dir_entry *ent = dir.entries[i]; - int len, pos; int matches = 0; - struct cache_entry *ce; struct stat st; + const char *rel; - /* - * Remove the '/' at the end that directory - * walking adds for directory entries. - */ - len = ent->len; - if (len && ent->name[len-1] == '/') - len--; - pos = cache_name_pos(ent->name, len); - if (0 <= pos) - continue; /* exact match */ - pos = -pos - 1; - if (pos < active_nr) { - ce = active_cache[pos]; - if (ce_namelen(ce) == len && - !memcmp(ce->name, ent->name, len)) - continue; /* Yup, this one exists unmerged */ - } + if (!cache_name_is_other(ent->name, ent->len)) + continue; + + if (pathspec.nr) + matches = dir_path_match(ent, &pathspec, 0, NULL); + + if (pathspec.nr && !matches) + continue; + + if (lstat(ent->name, &st)) + die_errno("Cannot lstat '%s'", ent->name); + + if (S_ISDIR(st.st_mode) && !remove_directories && + matches != MATCHED_EXACTLY) + continue; + + rel = relative_path(ent->name, prefix, &buf); + string_list_append(&del_list, rel); + } + + if (interactive && del_list.nr > 0) + interactive_main_loop(); + + for_each_string_list_item(item, &del_list) { + struct stat st; + + if (prefix) + strbuf_addstr(&abs_path, prefix); + + strbuf_addstr(&abs_path, item->string); /* * we might have removed this as part of earlier * recursive directory removal, so lstat() here could * fail with ENOENT. */ - if (lstat(ent->name, &st)) + if (lstat(abs_path.buf, &st)) continue; - if (pathspec) { - memset(seen, 0, argc > 0 ? argc : 1); - matches = match_pathspec(pathspec, ent->name, len, - 0, seen); - } - if (S_ISDIR(st.st_mode)) { - strbuf_addstr(&directory, ent->name); - qname = quote_path_relative(directory.buf, directory.len, &buf, prefix); - if (show_only && (remove_directories || - (matches == MATCHED_EXACTLY))) { - printf(_("Would remove %s\n"), qname); - } else if (remove_directories || - (matches == MATCHED_EXACTLY)) { - if (!quiet) - printf(_("Removing %s\n"), qname); - if (remove_dir_recursively(&directory, - rm_flags) != 0) { - warning(_("failed to remove %s"), qname); - errors++; - } - } else if (show_only) { - printf(_("Would not remove %s\n"), qname); - } else { - printf(_("Not removing %s\n"), qname); + if (remove_dirs(&abs_path, prefix, rm_flags, dry_run, quiet, &gone)) + errors++; + if (gone && !quiet) { + qname = quote_path_relative(item->string, NULL, &buf); + printf(dry_run ? _(msg_would_remove) : _(msg_remove), qname); } - strbuf_reset(&directory); } else { - if (pathspec && !matches) - continue; - qname = quote_path_relative(ent->name, -1, &buf, prefix); - if (show_only) { - printf(_("Would remove %s\n"), qname); - continue; - } else if (!quiet) { - printf(_("Removing %s\n"), qname); - } - if (unlink(ent->name) != 0) { - warning(_("failed to remove %s"), qname); + res = dry_run ? 0 : unlink(abs_path.buf); + if (res) { + qname = quote_path_relative(item->string, NULL, &buf); + warning(_(msg_warn_remove_failed), qname); errors++; + } else if (!quiet) { + qname = quote_path_relative(item->string, NULL, &buf); + printf(dry_run ? _(msg_would_remove) : _(msg_remove), qname); } } + strbuf_reset(&abs_path); } - free(seen); - strbuf_release(&directory); + strbuf_release(&abs_path); + strbuf_release(&buf); + string_list_clear(&del_list, 0); string_list_clear(&exclude_list, 0); return (errors != 0); } diff --git a/builtin/clone.c b/builtin/clone.c index 86db954730..8f7db98af6 100644 --- a/builtin/clone.c +++ b/builtin/clone.c @@ -9,6 +9,7 @@ */ #include "builtin.h" +#include "lockfile.h" #include "parse-options.h" #include "fetch-pack.h" #include "refs.h" @@ -18,11 +19,11 @@ #include "transport.h" #include "strbuf.h" #include "dir.h" -#include "pack-refs.h" #include "sigchain.h" #include "branch.h" #include "remote.h" #include "run-command.h" +#include "connected.h" /* * Overall FIXMEs: @@ -33,164 +34,217 @@ * */ static const char * const builtin_clone_usage[] = { - "git clone [options] [--] <repo> [<dir>]", + N_("git clone [<options>] [--] <repo> [<dir>]"), NULL }; -static int option_no_checkout, option_bare, option_mirror; -static int option_local, option_no_hardlinks, option_shared, option_recursive; +static int option_no_checkout, option_bare, option_mirror, option_single_branch = -1; +static int option_local = -1, option_no_hardlinks, option_shared, option_recursive; +static int option_shallow_submodules; static char *option_template, *option_depth; static char *option_origin = NULL; static char *option_branch = NULL; static const char *real_git_dir; static char *option_upload_pack = "git-upload-pack"; static int option_verbosity; -static int option_progress; +static int option_progress = -1; +static enum transport_family family; static struct string_list option_config; static struct string_list option_reference; - -static int opt_parse_reference(const struct option *opt, const char *arg, int unset) -{ - struct string_list *option_reference = opt->value; - if (!arg) - return -1; - string_list_append(option_reference, arg); - return 0; -} +static int option_dissociate; +static int max_jobs = -1; static struct option builtin_clone_options[] = { OPT__VERBOSITY(&option_verbosity), - OPT_BOOLEAN(0, "progress", &option_progress, - "force progress reporting"), - OPT_BOOLEAN('n', "no-checkout", &option_no_checkout, - "don't create a checkout"), - OPT_BOOLEAN(0, "bare", &option_bare, "create a bare repository"), - { OPTION_BOOLEAN, 0, "naked", &option_bare, NULL, - "create a bare repository", - PARSE_OPT_NOARG | PARSE_OPT_HIDDEN }, - OPT_BOOLEAN(0, "mirror", &option_mirror, - "create a mirror repository (implies bare)"), - OPT_BOOLEAN('l', "local", &option_local, - "to clone from a local repository"), - OPT_BOOLEAN(0, "no-hardlinks", &option_no_hardlinks, - "don't use local hardlinks, always copy"), - OPT_BOOLEAN('s', "shared", &option_shared, - "setup as shared repository"), - OPT_BOOLEAN(0, "recursive", &option_recursive, - "initialize submodules in the clone"), - OPT_BOOLEAN(0, "recurse-submodules", &option_recursive, - "initialize submodules in the clone"), - OPT_STRING(0, "template", &option_template, "template-directory", - "directory from which templates will be used"), - OPT_CALLBACK(0 , "reference", &option_reference, "repo", - "reference repository", &opt_parse_reference), - OPT_STRING('o', "origin", &option_origin, "name", - "use <name> instead of 'origin' to track upstream"), - OPT_STRING('b', "branch", &option_branch, "branch", - "checkout <branch> instead of the remote's HEAD"), - OPT_STRING('u', "upload-pack", &option_upload_pack, "path", - "path to git-upload-pack on the remote"), - OPT_STRING(0, "depth", &option_depth, "depth", - "create a shallow clone of that depth"), - OPT_STRING(0, "separate-git-dir", &real_git_dir, "gitdir", - "separate git dir from working tree"), - OPT_STRING_LIST('c', "config", &option_config, "key=value", - "set config inside the new repository"), + OPT_BOOL(0, "progress", &option_progress, + N_("force progress reporting")), + OPT_BOOL('n', "no-checkout", &option_no_checkout, + N_("don't create a checkout")), + OPT_BOOL(0, "bare", &option_bare, N_("create a bare repository")), + OPT_HIDDEN_BOOL(0, "naked", &option_bare, + N_("create a bare repository")), + OPT_BOOL(0, "mirror", &option_mirror, + N_("create a mirror repository (implies bare)")), + OPT_BOOL('l', "local", &option_local, + N_("to clone from a local repository")), + OPT_BOOL(0, "no-hardlinks", &option_no_hardlinks, + N_("don't use local hardlinks, always copy")), + OPT_BOOL('s', "shared", &option_shared, + N_("setup as shared repository")), + OPT_BOOL(0, "recursive", &option_recursive, + N_("initialize submodules in the clone")), + OPT_BOOL(0, "recurse-submodules", &option_recursive, + N_("initialize submodules in the clone")), + OPT_INTEGER('j', "jobs", &max_jobs, + N_("number of submodules cloned in parallel")), + OPT_STRING(0, "template", &option_template, N_("template-directory"), + N_("directory from which templates will be used")), + OPT_STRING_LIST(0, "reference", &option_reference, N_("repo"), + N_("reference repository")), + OPT_BOOL(0, "dissociate", &option_dissociate, + N_("use --reference only while cloning")), + OPT_STRING('o', "origin", &option_origin, N_("name"), + N_("use <name> instead of 'origin' to track upstream")), + OPT_STRING('b', "branch", &option_branch, N_("branch"), + N_("checkout <branch> instead of the remote's HEAD")), + OPT_STRING('u', "upload-pack", &option_upload_pack, N_("path"), + N_("path to git-upload-pack on the remote")), + OPT_STRING(0, "depth", &option_depth, N_("depth"), + N_("create a shallow clone of that depth")), + OPT_BOOL(0, "single-branch", &option_single_branch, + N_("clone only one branch, HEAD or --branch")), + OPT_BOOL(0, "shallow-submodules", &option_shallow_submodules, + N_("any cloned submodules will be shallow")), + OPT_STRING(0, "separate-git-dir", &real_git_dir, N_("gitdir"), + N_("separate git dir from working tree")), + OPT_STRING_LIST('c', "config", &option_config, N_("key=value"), + N_("set config inside the new repository")), + OPT_SET_INT('4', "ipv4", &family, N_("use IPv4 addresses only"), + TRANSPORT_FAMILY_IPV4), + OPT_SET_INT('6', "ipv6", &family, N_("use IPv6 addresses only"), + TRANSPORT_FAMILY_IPV6), OPT_END() }; -static const char *argv_submodule[] = { - "submodule", "update", "--init", "--recursive", NULL -}; - -static char *get_repo_path(const char *repo, int *is_bundle) +static const char *get_repo_path_1(struct strbuf *path, int *is_bundle) { - static char *suffix[] = { "/.git", ".git", "" }; + static char *suffix[] = { "/.git", "", ".git/.git", ".git" }; static char *bundle_suffix[] = { ".bundle", "" }; + size_t baselen = path->len; struct stat st; int i; for (i = 0; i < ARRAY_SIZE(suffix); i++) { - const char *path; - path = mkpath("%s%s", repo, suffix[i]); - if (stat(path, &st)) + strbuf_setlen(path, baselen); + strbuf_addstr(path, suffix[i]); + if (stat(path->buf, &st)) continue; - if (S_ISDIR(st.st_mode)) { + if (S_ISDIR(st.st_mode) && is_git_directory(path->buf)) { *is_bundle = 0; - return xstrdup(absolute_path(path)); + return path->buf; } else if (S_ISREG(st.st_mode) && st.st_size > 8) { /* Is it a "gitfile"? */ char signature[8]; - int len, fd = open(path, O_RDONLY); + const char *dst; + int len, fd = open(path->buf, O_RDONLY); if (fd < 0) continue; len = read_in_full(fd, signature, 8); close(fd); if (len != 8 || strncmp(signature, "gitdir: ", 8)) continue; - path = read_gitfile(path); - if (path) { + dst = read_gitfile(path->buf); + if (dst) { *is_bundle = 0; - return xstrdup(absolute_path(path)); + return dst; } } } for (i = 0; i < ARRAY_SIZE(bundle_suffix); i++) { - const char *path; - path = mkpath("%s%s", repo, bundle_suffix[i]); - if (!stat(path, &st) && S_ISREG(st.st_mode)) { + strbuf_setlen(path, baselen); + strbuf_addstr(path, bundle_suffix[i]); + if (!stat(path->buf, &st) && S_ISREG(st.st_mode)) { *is_bundle = 1; - return xstrdup(absolute_path(path)); + return path->buf; } } return NULL; } +static char *get_repo_path(const char *repo, int *is_bundle) +{ + struct strbuf path = STRBUF_INIT; + const char *raw; + char *canon; + + strbuf_addstr(&path, repo); + raw = get_repo_path_1(&path, is_bundle); + canon = raw ? xstrdup(absolute_path(raw)) : NULL; + strbuf_release(&path); + return canon; +} + static char *guess_dir_name(const char *repo, int is_bundle, int is_bare) { - const char *end = repo + strlen(repo), *start; + const char *end = repo + strlen(repo), *start, *ptr; + size_t len; char *dir; /* + * Skip scheme. + */ + start = strstr(repo, "://"); + if (start == NULL) + start = repo; + else + start += 3; + + /* + * Skip authentication data. The stripping does happen + * greedily, such that we strip up to the last '@' inside + * the host part. + */ + for (ptr = start; ptr < end && !is_dir_sep(*ptr); ptr++) { + if (*ptr == '@') + start = ptr + 1; + } + + /* * Strip trailing spaces, slashes and /.git */ - while (repo < end && (is_dir_sep(end[-1]) || isspace(end[-1]))) + while (start < end && (is_dir_sep(end[-1]) || isspace(end[-1]))) end--; - if (end - repo > 5 && is_dir_sep(end[-5]) && + if (end - start > 5 && is_dir_sep(end[-5]) && !strncmp(end - 4, ".git", 4)) { end -= 5; - while (repo < end && is_dir_sep(end[-1])) + while (start < end && is_dir_sep(end[-1])) end--; } /* - * Find last component, but be prepared that repo could have - * the form "remote.example.com:foo.git", i.e. no slash - * in the directory part. + * Strip trailing port number if we've got only a + * hostname (that is, there is no dir separator but a + * colon). This check is required such that we do not + * strip URI's like '/foo/bar:2222.git', which should + * result in a dir '2222' being guessed due to backwards + * compatibility. */ - start = end; - while (repo < start && !is_dir_sep(start[-1]) && start[-1] != ':') - start--; + if (memchr(start, '/', end - start) == NULL + && memchr(start, ':', end - start) != NULL) { + ptr = end; + while (start < ptr && isdigit(ptr[-1]) && ptr[-1] != ':') + ptr--; + if (start < ptr && ptr[-1] == ':') + end = ptr - 1; + } + + /* + * Find last component. To remain backwards compatible we + * also regard colons as path separators, such that + * cloning a repository 'foo:bar.git' would result in a + * directory 'bar' being guessed. + */ + ptr = end; + while (start < ptr && !is_dir_sep(ptr[-1]) && ptr[-1] != ':') + ptr--; + start = ptr; /* * Strip .{bundle,git}. */ - if (is_bundle) { - if (end - start > 7 && !strncmp(end - 7, ".bundle", 7)) - end -= 7; - } else { - if (end - start > 4 && !strncmp(end - 4, ".git", 4)) - end -= 4; - } + len = end - start; + strip_suffix_mem(start, &len, is_bundle ? ".bundle" : ".git"); - if (is_bare) { - struct strbuf result = STRBUF_INIT; - strbuf_addf(&result, "%.*s.git", (int)(end - start), start); - dir = strbuf_detach(&result, NULL); - } else - dir = xstrndup(start, end - start); + if (!len || (len == 1 && *start == '/')) + die(_("No directory name could be guessed.\n" + "Please specify a directory on the command line")); + + if (is_bare) + dir = xstrfmt("%.*s.git", (int)len, start); + else + dir = xstrndup(start, len); /* * Replace sequences of 'control' characters and whitespace * with one ascii space, remove leading and trailing spaces. @@ -229,32 +283,42 @@ static void strip_trailing_slashes(char *dir) static int add_one_reference(struct string_list_item *item, void *cb_data) { char *ref_git; + const char *repo; struct strbuf alternate = STRBUF_INIT; - struct remote *remote; - struct transport *transport; - const struct ref *extra; - /* Beware: real_path() and mkpath() return static buffer */ + /* Beware: read_gitfile(), real_path() and mkpath() return static buffer */ ref_git = xstrdup(real_path(item->string)); - if (is_directory(mkpath("%s/.git/objects", ref_git))) { - char *ref_git_git = xstrdup(mkpath("%s/.git", ref_git)); + + repo = read_gitfile(ref_git); + if (!repo) + repo = read_gitfile(mkpath("%s/.git", ref_git)); + if (repo) { + free(ref_git); + ref_git = xstrdup(repo); + } + + if (!repo && is_directory(mkpath("%s/.git/objects", ref_git))) { + char *ref_git_git = mkpathdup("%s/.git", ref_git); free(ref_git); ref_git = ref_git_git; - } else if (!is_directory(mkpath("%s/objects", ref_git))) - die(_("reference repository '%s' is not a local directory."), + } else if (!is_directory(mkpath("%s/objects", ref_git))) { + struct strbuf sb = STRBUF_INIT; + if (get_common_dir(&sb, ref_git)) + die(_("reference repository '%s' as a linked checkout is not supported yet."), + item->string); + die(_("reference repository '%s' is not a local repository."), item->string); + } + + if (!access(mkpath("%s/shallow", ref_git), F_OK)) + die(_("reference repository '%s' is shallow"), item->string); + + if (!access(mkpath("%s/info/grafts", ref_git), F_OK)) + die(_("reference repository '%s' is grafted"), item->string); strbuf_addf(&alternate, "%s/objects", ref_git); add_to_alternates_file(alternate.buf); strbuf_release(&alternate); - - remote = remote_get(ref_git); - transport = transport_get(remote, ref_git); - for (extra = transport_get_remote_refs(transport); extra; - extra = extra->next) - add_extra_ref(extra->name, extra->old_sha1, 0); - - transport_disconnect(transport); free(ref_git); return 0; } @@ -282,17 +346,18 @@ static void copy_alternates(struct strbuf *src, struct strbuf *dst, FILE *in = fopen(src->buf, "r"); struct strbuf line = STRBUF_INIT; - while (strbuf_getline(&line, in, '\n') != EOF) { - char *abs_path, abs_buf[PATH_MAX]; + while (strbuf_getline(&line, in) != EOF) { + char *abs_path; if (!line.len || line.buf[0] == '#') continue; if (is_absolute_path(line.buf)) { add_to_alternates_file(line.buf); continue; } - abs_path = mkpath("%s/objects/%s", src_repo, line.buf); - normalize_path_copy(abs_buf, abs_path); - add_to_alternates_file(abs_buf); + abs_path = mkpathdup("%s/objects/%s", src_repo, line.buf); + normalize_path_copy(abs_path, abs_path); + add_to_alternates_file(abs_path); + free(abs_path); } strbuf_release(&line); fclose(in); @@ -351,7 +416,7 @@ static void copy_or_link_directory(struct strbuf *src, struct strbuf *dest, if (!option_no_hardlinks) { if (!link(src->buf, dest->buf)) continue; - if (option_local) + if (option_local > 0) die_errno(_("failed to create link '%s'"), dest->buf); option_no_hardlinks = 1; } @@ -361,13 +426,8 @@ static void copy_or_link_directory(struct strbuf *src, struct strbuf *dest, closedir(dir); } -static const struct ref *clone_local(const char *src_repo, - const char *dest_repo) +static void clone_local(const char *src_repo, const char *dest_repo) { - const struct ref *ret; - struct remote *remote; - struct transport *transport; - if (option_shared) { struct strbuf alt = STRBUF_INIT; strbuf_addf(&alt, "%s/objects", src_repo); @@ -376,31 +436,47 @@ static const struct ref *clone_local(const char *src_repo, } else { struct strbuf src = STRBUF_INIT; struct strbuf dest = STRBUF_INIT; - strbuf_addf(&src, "%s/objects", src_repo); - strbuf_addf(&dest, "%s/objects", dest_repo); + get_common_dir(&src, src_repo); + get_common_dir(&dest, dest_repo); + strbuf_addstr(&src, "/objects"); + strbuf_addstr(&dest, "/objects"); copy_or_link_directory(&src, &dest, src_repo, src.len); strbuf_release(&src); strbuf_release(&dest); } - remote = remote_get(src_repo); - transport = transport_get(remote, src_repo); - ret = transport_get_remote_refs(transport); - transport_disconnect(transport); if (0 <= option_verbosity) - printf(_("done.\n")); - return ret; + fprintf(stderr, _("done.\n")); } static const char *junk_work_tree; static const char *junk_git_dir; -static pid_t junk_pid; +static enum { + JUNK_LEAVE_NONE, + JUNK_LEAVE_REPO, + JUNK_LEAVE_ALL +} junk_mode = JUNK_LEAVE_NONE; + +static const char junk_leave_repo_msg[] = +N_("Clone succeeded, but checkout failed.\n" + "You can inspect what was checked out with 'git status'\n" + "and retry the checkout with 'git checkout -f HEAD'\n"); static void remove_junk(void) { struct strbuf sb = STRBUF_INIT; - if (getpid() != junk_pid) + + switch (junk_mode) { + case JUNK_LEAVE_REPO: + warning("%s", _(junk_leave_repo_msg)); + /* fall-through */ + case JUNK_LEAVE_ALL: return; + default: + /* proceed to removal */ + break; + } + if (junk_git_dir) { strbuf_addstr(&sb, junk_git_dir); remove_dir_recursively(&sb, 0); @@ -420,6 +496,26 @@ static void remove_junk_on_signal(int signo) raise(signo); } +static struct ref *find_remote_branch(const struct ref *refs, const char *branch) +{ + struct ref *ref; + struct strbuf head = STRBUF_INIT; + strbuf_addstr(&head, "refs/heads/"); + strbuf_addstr(&head, branch); + ref = find_ref_by_name(refs, head.buf); + strbuf_release(&head); + + if (ref) + return ref; + + strbuf_addstr(&head, "refs/tags/"); + strbuf_addstr(&head, branch); + ref = find_ref_by_name(refs, head.buf); + strbuf_release(&head); + + return ref; +} + static struct ref *wanted_peer_refs(const struct ref *refs, struct refspec *refspec) { @@ -427,8 +523,30 @@ static struct ref *wanted_peer_refs(const struct ref *refs, struct ref *local_refs = head; struct ref **tail = head ? &head->next : &local_refs; - get_fetch_map(refs, refspec, &tail, 0); - if (!option_mirror) + if (option_single_branch) { + struct ref *remote_head = NULL; + + if (!option_branch) + remote_head = guess_remote_head(head, refs, 0); + else { + local_refs = NULL; + tail = &local_refs; + remote_head = copy_ref(find_remote_branch(refs, option_branch)); + } + + if (!remote_head && option_branch) + warning(_("Could not find remote branch %s to clone."), + option_branch); + else { + get_fetch_map(remote_head, refspec, &tail, 0); + + /* if --branch=tag, pull the requested tag explicitly */ + get_fetch_map(remote_head, tag_refspec, &tail, 0); + } + } else + get_fetch_map(refs, refspec, &tail, 0); + + if (!option_mirror && !option_single_branch) get_fetch_map(refs, tag_refspec, &tail, 0); return local_refs; @@ -438,19 +556,204 @@ static void write_remote_refs(const struct ref *local_refs) { const struct ref *r; + struct ref_transaction *t; + struct strbuf err = STRBUF_INIT; + + t = ref_transaction_begin(&err); + if (!t) + die("%s", err.buf); + for (r = local_refs; r; r = r->next) { if (!r->peer_ref) continue; - add_extra_ref(r->peer_ref->name, r->old_sha1, 0); + if (ref_transaction_create(t, r->peer_ref->name, r->old_oid.hash, + 0, NULL, &err)) + die("%s", err.buf); + } + + if (initial_ref_transaction_commit(t, &err)) + die("%s", err.buf); + + strbuf_release(&err); + ref_transaction_free(t); +} + +static void write_followtags(const struct ref *refs, const char *msg) +{ + const struct ref *ref; + for (ref = refs; ref; ref = ref->next) { + if (!starts_with(ref->name, "refs/tags/")) + continue; + if (ends_with(ref->name, "^{}")) + continue; + if (!has_object_file(&ref->old_oid)) + continue; + update_ref(msg, ref->name, ref->old_oid.hash, + NULL, 0, UPDATE_REFS_DIE_ON_ERR); + } +} + +static int iterate_ref_map(void *cb_data, unsigned char sha1[20]) +{ + struct ref **rm = cb_data; + struct ref *ref = *rm; + + /* + * Skip anything missing a peer_ref, which we are not + * actually going to write a ref for. + */ + while (ref && !ref->peer_ref) + ref = ref->next; + /* Returning -1 notes "end of list" to the caller. */ + if (!ref) + return -1; + + hashcpy(sha1, ref->old_oid.hash); + *rm = ref->next; + return 0; +} + +static void update_remote_refs(const struct ref *refs, + const struct ref *mapped_refs, + const struct ref *remote_head_points_at, + const char *branch_top, + const char *msg, + struct transport *transport, + int check_connectivity) +{ + const struct ref *rm = mapped_refs; + + if (check_connectivity) { + if (transport->progress) + fprintf(stderr, _("Checking connectivity... ")); + if (check_everything_connected_with_transport(iterate_ref_map, + 0, &rm, transport)) + die(_("remote did not send all necessary objects")); + if (transport->progress) + fprintf(stderr, _("done.\n")); + } + + if (refs) { + write_remote_refs(mapped_refs); + if (option_single_branch) + write_followtags(refs, msg); + } + + if (remote_head_points_at && !option_bare) { + struct strbuf head_ref = STRBUF_INIT; + strbuf_addstr(&head_ref, branch_top); + strbuf_addstr(&head_ref, "HEAD"); + if (create_symref(head_ref.buf, + remote_head_points_at->peer_ref->name, + msg) < 0) + die(_("unable to update %s"), head_ref.buf); + strbuf_release(&head_ref); + } +} + +static void update_head(const struct ref *our, const struct ref *remote, + const char *msg) +{ + const char *head; + if (our && skip_prefix(our->name, "refs/heads/", &head)) { + /* Local default branch link */ + if (create_symref("HEAD", our->name, NULL) < 0) + die(_("unable to update HEAD")); + if (!option_bare) { + update_ref(msg, "HEAD", our->old_oid.hash, NULL, 0, + UPDATE_REFS_DIE_ON_ERR); + install_branch_config(0, head, option_origin, our->name); + } + } else if (our) { + struct commit *c = lookup_commit_reference(our->old_oid.hash); + /* --branch specifies a non-branch (i.e. tags), detach HEAD */ + update_ref(msg, "HEAD", c->object.oid.hash, + NULL, REF_NODEREF, UPDATE_REFS_DIE_ON_ERR); + } else if (remote) { + /* + * We know remote HEAD points to a non-branch, or + * HEAD points to a branch but we don't know which one. + * Detach HEAD in all these cases. + */ + update_ref(msg, "HEAD", remote->old_oid.hash, + NULL, REF_NODEREF, UPDATE_REFS_DIE_ON_ERR); + } +} + +static int checkout(void) +{ + unsigned char sha1[20]; + char *head; + struct lock_file *lock_file; + struct unpack_trees_options opts; + struct tree *tree; + struct tree_desc t; + int err = 0; + + if (option_no_checkout) + return 0; + + head = resolve_refdup("HEAD", RESOLVE_REF_READING, sha1, NULL); + if (!head) { + warning(_("remote HEAD refers to nonexistent ref, " + "unable to checkout.\n")); + return 0; + } + if (!strcmp(head, "HEAD")) { + if (advice_detached_head) + detach_advice(sha1_to_hex(sha1)); + } else { + if (!starts_with(head, "refs/heads/")) + die(_("HEAD not found below refs/heads!")); + } + free(head); + + /* We need to be in the new work tree for the checkout */ + setup_work_tree(); + + lock_file = xcalloc(1, sizeof(struct lock_file)); + hold_locked_index(lock_file, 1); + + memset(&opts, 0, sizeof opts); + opts.update = 1; + opts.merge = 1; + opts.fn = oneway_merge; + opts.verbose_update = (option_verbosity >= 0); + opts.src_index = &the_index; + opts.dst_index = &the_index; + + tree = parse_tree_indirect(sha1); + parse_tree(tree); + init_tree_desc(&t, tree->buffer, tree->size); + if (unpack_trees(1, &t, &opts) < 0) + die(_("unable to checkout working tree")); + + if (write_locked_index(&the_index, lock_file, COMMIT_LOCK)) + die(_("unable to write new index file")); + + err |= run_hook_le(NULL, "post-checkout", sha1_to_hex(null_sha1), + sha1_to_hex(sha1), "1", NULL); + + if (!err && option_recursive) { + struct argv_array args = ARGV_ARRAY_INIT; + argv_array_pushl(&args, "submodule", "update", "--init", "--recursive", NULL); + + if (option_shallow_submodules == 1) + argv_array_push(&args, "--depth=1"); + + if (max_jobs != -1) + argv_array_pushf(&args, "--jobs=%d", max_jobs); + + err = run_command_v_opt(args.argv, RUN_GIT_CMD); + argv_array_clear(&args); } - pack_refs(PACK_REFS_ALL); - clear_extra_refs(); + return err; } static int write_one_config(const char *key, const char *value, void *data) { - return git_config_set_multivar(key, value ? value : "true", "^$", 0); + return git_config_set_multivar_gently(key, value ? value : "true", "^$", 0); } static void write_config(struct string_list *config) @@ -460,10 +763,76 @@ static void write_config(struct string_list *config) for (i = 0; i < config->nr; i++) { if (git_config_parse_parameter(config->items[i].string, write_one_config, NULL) < 0) - die("unable to write parameters to config file"); + die(_("unable to write parameters to config file")); } } +static void write_refspec_config(const char *src_ref_prefix, + const struct ref *our_head_points_at, + const struct ref *remote_head_points_at, + struct strbuf *branch_top) +{ + struct strbuf key = STRBUF_INIT; + struct strbuf value = STRBUF_INIT; + + if (option_mirror || !option_bare) { + if (option_single_branch && !option_mirror) { + if (option_branch) { + if (starts_with(our_head_points_at->name, "refs/tags/")) + strbuf_addf(&value, "+%s:%s", our_head_points_at->name, + our_head_points_at->name); + else + strbuf_addf(&value, "+%s:%s%s", our_head_points_at->name, + branch_top->buf, option_branch); + } else if (remote_head_points_at) { + const char *head = remote_head_points_at->name; + if (!skip_prefix(head, "refs/heads/", &head)) + die("BUG: remote HEAD points at non-head?"); + + strbuf_addf(&value, "+%s:%s%s", remote_head_points_at->name, + branch_top->buf, head); + } + /* + * otherwise, the next "git fetch" will + * simply fetch from HEAD without updating + * any remote-tracking branch, which is what + * we want. + */ + } else { + strbuf_addf(&value, "+%s*:%s*", src_ref_prefix, branch_top->buf); + } + /* Configure the remote */ + if (value.len) { + strbuf_addf(&key, "remote.%s.fetch", option_origin); + git_config_set_multivar(key.buf, value.buf, "^$", 0); + strbuf_reset(&key); + + if (option_mirror) { + strbuf_addf(&key, "remote.%s.mirror", option_origin); + git_config_set(key.buf, "true"); + strbuf_reset(&key); + } + } + } + + strbuf_release(&key); + strbuf_release(&value); +} + +static void dissociate_from_references(void) +{ + static const char* argv[] = { "repack", "-a", "-d", NULL }; + char *alternates = git_pathdup("objects/info/alternates"); + + if (!access(alternates, F_OK)) { + if (run_command_v_opt(argv, RUN_GIT_CMD|RUN_COMMAND_NO_STDIN)) + die(_("cannot repack to clean up")); + if (unlink(alternates) && errno != ENOENT) + die_errno(_("cannot unlink temporary alternates file")); + } + free(alternates); +} + int cmd_clone(int argc, const char **argv, const char *prefix) { int is_bundle = 0, is_local; @@ -475,17 +844,17 @@ int cmd_clone(int argc, const char **argv, const char *prefix) const struct ref *remote_head_points_at; const struct ref *our_head_points_at; struct ref *mapped_refs; + const struct ref *ref; struct strbuf key = STRBUF_INIT, value = STRBUF_INIT; struct strbuf branch_top = STRBUF_INIT, reflog_msg = STRBUF_INIT; struct transport *transport = NULL; - char *src_ref_prefix = "refs/heads/"; - int err = 0; + const char *src_ref_prefix = "refs/heads/"; + struct remote *remote; + int err = 0, complete_refs_before_fetch = 1; struct refspec *refspec; const char *fetch_pattern; - junk_pid = getpid(); - packet_trace_identity("clone"); argc = parse_options(argc, argv, prefix, builtin_clone_options, builtin_clone_usage, 0); @@ -498,6 +867,9 @@ int cmd_clone(int argc, const char **argv, const char *prefix) usage_msg_opt(_("You must specify a repository to clone."), builtin_clone_usage, builtin_clone_options); + if (option_single_branch == -1) + option_single_branch = option_depth ? 1 : 0; + if (option_mirror) option_bare = 1; @@ -505,6 +877,8 @@ int cmd_clone(int argc, const char **argv, const char *prefix) if (option_origin) die(_("--bare and --origin %s options are incompatible."), option_origin); + if (real_git_dir) + die(_("--bare and --separate-git-dir are incompatible.")); option_no_checkout = 1; } @@ -520,9 +894,10 @@ int cmd_clone(int argc, const char **argv, const char *prefix) die(_("repository '%s' does not exist"), repo_name); else repo = repo_name; - is_local = path && !is_bundle; - if (is_local && option_depth) - warning(_("--depth is ignored in local clones; use file:// instead.")); + + /* no need to be strict, transport_set_option() will validate it again */ + if (option_depth && atoi(option_depth) < 1) + die(_("depth %s is not a positive number"), option_depth); if (argc == 2) dir = xstrdup(argv[1]); @@ -549,48 +924,42 @@ int cmd_clone(int argc, const char **argv, const char *prefix) git_dir = xstrdup(dir); else { work_tree = dir; - git_dir = xstrdup(mkpath("%s/.git", dir)); + git_dir = mkpathdup("%s/.git", dir); } + atexit(remove_junk); + sigchain_push_common(remove_junk_on_signal); + if (!option_bare) { - junk_work_tree = work_tree; if (safe_create_leading_directories_const(work_tree) < 0) die_errno(_("could not create leading directories of '%s'"), work_tree); - if (!dest_exists && mkdir(work_tree, 0755)) - die_errno(_("could not create work tree dir '%s'."), + if (!dest_exists && mkdir(work_tree, 0777)) + die_errno(_("could not create work tree dir '%s'"), work_tree); + junk_work_tree = work_tree; set_git_work_tree(work_tree); } - junk_git_dir = git_dir; - atexit(remove_junk); - sigchain_push_common(remove_junk_on_signal); - - setenv(CONFIG_ENVIRONMENT, mkpath("%s/config", git_dir), 1); + junk_git_dir = git_dir; if (safe_create_leading_directories_const(git_dir) < 0) die(_("could not create leading directories of '%s'"), git_dir); set_git_dir_init(git_dir, real_git_dir, 0); - if (real_git_dir) + if (real_git_dir) { git_dir = real_git_dir; + junk_git_dir = real_git_dir; + } if (0 <= option_verbosity) { if (option_bare) - printf(_("Cloning into bare repository '%s'...\n"), dir); + fprintf(stderr, _("Cloning into bare repository '%s'...\n"), dir); else - printf(_("Cloning into '%s'...\n"), dir); + fprintf(stderr, _("Cloning into '%s'...\n"), dir); } init_db(option_template, INIT_DB_QUIET); write_config(&option_config); - /* - * At this point, the config exists, so we do not need the - * environment variable. We actually need to unset it, too, to - * re-enable parsing of the global configs. - */ - unsetenv(CONFIG_ENVIRONMENT); - git_config(git_default_config, NULL); if (option_bare) { @@ -604,20 +973,6 @@ int cmd_clone(int argc, const char **argv, const char *prefix) } strbuf_addf(&value, "+%s*:%s*", src_ref_prefix, branch_top.buf); - - if (option_mirror || !option_bare) { - /* Configure the remote */ - strbuf_addf(&key, "remote.%s.fetch", option_origin); - git_config_set_multivar(key.buf, value.buf, "^$", 0); - strbuf_reset(&key); - - if (option_mirror) { - strbuf_addf(&key, "remote.%s.mirror", option_origin); - git_config_set(key.buf, "true"); - strbuf_reset(&key); - } - } - strbuf_addf(&key, "remote.%s.url", option_origin); git_config_set(key.buf, repo); strbuf_reset(&key); @@ -630,64 +985,89 @@ int cmd_clone(int argc, const char **argv, const char *prefix) strbuf_reset(&value); + remote = remote_get(option_origin); + transport = transport_get(remote, remote->url[0]); + transport_set_verbosity(transport, option_verbosity, option_progress); + transport->family = family; + + path = get_repo_path(remote->url[0], &is_bundle); + is_local = option_local != 0 && path && !is_bundle; if (is_local) { - refs = clone_local(path, git_dir); - mapped_refs = wanted_peer_refs(refs, refspec); - } else { - struct remote *remote = remote_get(option_origin); - transport = transport_get(remote, remote->url[0]); + if (option_depth) + warning(_("--depth is ignored in local clones; use file:// instead.")); + if (!access(mkpath("%s/shallow", path), F_OK)) { + if (option_local > 0) + warning(_("source repository is shallow, ignoring --local")); + is_local = 0; + } + } + if (option_local > 0 && !is_local) + warning(_("--local is ignored")); + transport->cloning = 1; - if (!transport->get_refs_list || !transport->fetch) - die(_("Don't know how to clone %s"), transport->url); + if (!transport->get_refs_list || (!is_local && !transport->fetch)) + die(_("Don't know how to clone %s"), transport->url); - transport_set_option(transport, TRANS_OPT_KEEP, "yes"); + transport_set_option(transport, TRANS_OPT_KEEP, "yes"); - if (option_depth) - transport_set_option(transport, TRANS_OPT_DEPTH, - option_depth); + if (option_depth) + transport_set_option(transport, TRANS_OPT_DEPTH, + option_depth); + if (option_single_branch) + transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, "1"); - transport_set_verbosity(transport, option_verbosity, option_progress); + if (option_upload_pack) + transport_set_option(transport, TRANS_OPT_UPLOADPACK, + option_upload_pack); - if (option_upload_pack) - transport_set_option(transport, TRANS_OPT_UPLOADPACK, - option_upload_pack); + if (transport->smart_options && !option_depth) + transport->smart_options->check_self_contained_and_connected = 1; - refs = transport_get_remote_refs(transport); - if (refs) { - mapped_refs = wanted_peer_refs(refs, refspec); - transport_fetch_refs(transport, mapped_refs); - } - } + refs = transport_get_remote_refs(transport); if (refs) { - clear_extra_refs(); + mapped_refs = wanted_peer_refs(refs, refspec); + /* + * transport_get_remote_refs() may return refs with null sha-1 + * in mapped_refs (see struct transport->get_refs_list + * comment). In that case we need fetch it early because + * remote_head code below relies on it. + * + * for normal clones, transport_get_remote_refs() should + * return reliable ref set, we can delay cloning until after + * remote HEAD check. + */ + for (ref = refs; ref; ref = ref->next) + if (is_null_oid(&ref->old_oid)) { + complete_refs_before_fetch = 0; + break; + } - write_remote_refs(mapped_refs); + if (!is_local && !complete_refs_before_fetch) + transport_fetch_refs(transport, mapped_refs); remote_head = find_ref_by_name(refs, "HEAD"); remote_head_points_at = guess_remote_head(remote_head, mapped_refs, 0); if (option_branch) { - struct strbuf head = STRBUF_INIT; - strbuf_addstr(&head, src_ref_prefix); - strbuf_addstr(&head, option_branch); our_head_points_at = - find_ref_by_name(mapped_refs, head.buf); - strbuf_release(&head); + find_remote_branch(mapped_refs, option_branch); - if (!our_head_points_at) { - warning(_("Remote branch %s not found in " - "upstream %s, using HEAD instead"), - option_branch, option_origin); - our_head_points_at = remote_head_points_at; - } + if (!our_head_points_at) + die(_("Remote branch %s not found in upstream %s"), + option_branch, option_origin); } else our_head_points_at = remote_head_points_at; } else { + if (option_branch) + die(_("Remote branch %s not found in upstream %s"), + option_branch, option_origin); + warning(_("You appear to have cloned an empty repository.")); + mapped_refs = NULL; our_head_points_at = NULL; remote_head_points_at = NULL; remote_head = NULL; @@ -697,89 +1077,36 @@ int cmd_clone(int argc, const char **argv, const char *prefix) "refs/heads/master"); } - if (remote_head_points_at && !option_bare) { - struct strbuf head_ref = STRBUF_INIT; - strbuf_addstr(&head_ref, branch_top.buf); - strbuf_addstr(&head_ref, "HEAD"); - create_symref(head_ref.buf, - remote_head_points_at->peer_ref->name, - reflog_msg.buf); - } + write_refspec_config(src_ref_prefix, our_head_points_at, + remote_head_points_at, &branch_top); - if (our_head_points_at) { - /* Local default branch link */ - create_symref("HEAD", our_head_points_at->name, NULL); - if (!option_bare) { - const char *head = skip_prefix(our_head_points_at->name, - "refs/heads/"); - update_ref(reflog_msg.buf, "HEAD", - our_head_points_at->old_sha1, - NULL, 0, DIE_ON_ERR); - install_branch_config(0, head, option_origin, - our_head_points_at->name); - } - } else if (remote_head) { - /* Source had detached HEAD pointing somewhere. */ - if (!option_bare) { - update_ref(reflog_msg.buf, "HEAD", - remote_head->old_sha1, - NULL, REF_NODEREF, DIE_ON_ERR); - our_head_points_at = remote_head; - } - } else { - /* Nothing to checkout out */ - if (!option_no_checkout) - warning(_("remote HEAD refers to nonexistent ref, " - "unable to checkout.\n")); - option_no_checkout = 1; - } - - if (transport) { - transport_unlock_pack(transport); - transport_disconnect(transport); - } - - if (!option_no_checkout) { - struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file)); - struct unpack_trees_options opts; - struct tree *tree; - struct tree_desc t; - int fd; + if (is_local) + clone_local(path, git_dir); + else if (refs && complete_refs_before_fetch) + transport_fetch_refs(transport, mapped_refs); - /* We need to be in the new work tree for the checkout */ - setup_work_tree(); + update_remote_refs(refs, mapped_refs, remote_head_points_at, + branch_top.buf, reflog_msg.buf, transport, !is_local); - fd = hold_locked_index(lock_file, 1); + update_head(our_head_points_at, remote_head, reflog_msg.buf); - memset(&opts, 0, sizeof opts); - opts.update = 1; - opts.merge = 1; - opts.fn = oneway_merge; - opts.verbose_update = (option_verbosity > 0); - opts.src_index = &the_index; - opts.dst_index = &the_index; - - tree = parse_tree_indirect(our_head_points_at->old_sha1); - parse_tree(tree); - init_tree_desc(&t, tree->buffer, tree->size); - unpack_trees(1, &t, &opts); - - if (write_cache(fd, active_cache, active_nr) || - commit_locked_index(lock_file)) - die(_("unable to write new index file")); - - err |= run_hook(NULL, "post-checkout", sha1_to_hex(null_sha1), - sha1_to_hex(our_head_points_at->old_sha1), "1", - NULL); + transport_unlock_pack(transport); + transport_disconnect(transport); - if (!err && option_recursive) - err = run_command_v_opt(argv_submodule, RUN_GIT_CMD); + if (option_dissociate) { + close_all_packs(); + dissociate_from_references(); } + junk_mode = JUNK_LEAVE_REPO; + err = checkout(); + strbuf_release(&reflog_msg); strbuf_release(&branch_top); strbuf_release(&key); strbuf_release(&value); - junk_pid = 0; + junk_mode = JUNK_LEAVE_ALL; + + free(refspec); return err; } diff --git a/builtin/column.c b/builtin/column.c new file mode 100644 index 0000000000..33314b4d71 --- /dev/null +++ b/builtin/column.c @@ -0,0 +1,59 @@ +#include "builtin.h" +#include "cache.h" +#include "strbuf.h" +#include "parse-options.h" +#include "string-list.h" +#include "column.h" + +static const char * const builtin_column_usage[] = { + N_("git column [<options>]"), + NULL +}; +static unsigned int colopts; + +static int column_config(const char *var, const char *value, void *cb) +{ + return git_column_config(var, value, cb, &colopts); +} + +int cmd_column(int argc, const char **argv, const char *prefix) +{ + struct string_list list = STRING_LIST_INIT_DUP; + struct strbuf sb = STRBUF_INIT; + struct column_options copts; + const char *command = NULL, *real_command = NULL; + struct option options[] = { + OPT_STRING(0, "command", &real_command, N_("name"), N_("lookup config vars")), + OPT_COLUMN(0, "mode", &colopts, N_("layout to use")), + OPT_INTEGER(0, "raw-mode", &colopts, N_("layout to use")), + OPT_INTEGER(0, "width", &copts.width, N_("Maximum width")), + OPT_STRING(0, "indent", &copts.indent, N_("string"), N_("Padding space on left border")), + OPT_INTEGER(0, "nl", &copts.nl, N_("Padding space on right border")), + OPT_INTEGER(0, "padding", &copts.padding, N_("Padding space between columns")), + OPT_END() + }; + + /* This one is special and must be the first one */ + if (argc > 1 && starts_with(argv[1], "--command=")) { + command = argv[1] + 10; + git_config(column_config, (void *)command); + } else + git_config(column_config, NULL); + + memset(&copts, 0, sizeof(copts)); + copts.width = term_columns(); + copts.padding = 1; + argc = parse_options(argc, argv, "", options, builtin_column_usage, 0); + if (argc) + usage_with_options(builtin_column_usage, options); + if (real_command || command) { + if (!real_command || !command || strcmp(real_command, command)) + die(_("--command must be the first argument")); + } + finalize_colopts(&colopts, -1); + while (!strbuf_getline(&sb, stdin)) + string_list_append(&list, sb.buf); + + print_columns(&list, colopts, &copts); + return 0; +} diff --git a/builtin/commit-tree.c b/builtin/commit-tree.c index 05353c30f2..8a674bc9e7 100644 --- a/builtin/commit-tree.c +++ b/builtin/commit-tree.c @@ -8,16 +8,19 @@ #include "tree.h" #include "builtin.h" #include "utf8.h" +#include "gpg-interface.h" -static const char commit_tree_usage[] = "git commit-tree [(-p <sha1>)...] [-m <message>] [-F <file>] <sha1> <changelog"; +static const char commit_tree_usage[] = "git commit-tree [(-p <sha1>)...] [-S[<keyid>]] [-m <message>] [-F <file>] <sha1>"; + +static const char *sign_commit; static void new_parent(struct commit *parent, struct commit_list **parents_p) { - unsigned char *sha1 = parent->object.sha1; + struct object_id *oid = &parent->object.oid; struct commit_list *parents; for (parents = *parents_p; parents; parents = parents->next) { if (parents->item == parent) { - error("duplicate parent %s ignored", sha1_to_hex(sha1)); + error("duplicate parent %s ignored", oid_to_hex(oid)); return; } parents_p = &parents->next; @@ -25,6 +28,14 @@ static void new_parent(struct commit *parent, struct commit_list **parents_p) commit_list_insert(parent, parents_p); } +static int commit_tree_config(const char *var, const char *value, void *cb) +{ + int status = git_gpg_config(var, value, NULL); + if (status) + return status; + return git_default_config(var, value, cb); +} + int cmd_commit_tree(int argc, const char **argv, const char *prefix) { int i, got_tree = 0; @@ -33,7 +44,7 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix) unsigned char commit_sha1[20]; struct strbuf buffer = STRBUF_INIT; - git_config(git_default_config, NULL); + git_config(commit_tree_config, NULL); if (argc < 2 || !strcmp(argv[1], "-h")) usage(commit_tree_usage); @@ -44,13 +55,21 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix) unsigned char sha1[20]; if (argc <= ++i) usage(commit_tree_usage); - if (get_sha1(argv[i], sha1)) + if (get_sha1_commit(argv[i], sha1)) die("Not a valid object name %s", argv[i]); assert_sha1_type(sha1, OBJ_COMMIT); new_parent(lookup_commit(sha1), &parents); continue; } + if (skip_prefix(arg, "-S", &sign_commit)) + continue; + + if (!strcmp(arg, "--no-gpg-sign")) { + sign_commit = NULL; + continue; + } + if (!strcmp(arg, "-m")) { if (argc <= ++i) usage(commit_tree_usage); @@ -86,7 +105,7 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix) continue; } - if (get_sha1(arg, tree_sha1)) + if (get_sha1_tree(arg, tree_sha1)) die("Not a valid object name %s", arg); if (got_tree) die("Cannot give more than one trees"); @@ -98,7 +117,8 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix) die_errno("git commit-tree: failed to read"); } - if (commit_tree(&buffer, tree_sha1, parents, commit_sha1, NULL)) { + if (commit_tree(buffer.buf, buffer.len, tree_sha1, parents, + commit_sha1, NULL, sign_commit)) { strbuf_release(&buffer); return 1; } diff --git a/builtin/commit.c b/builtin/commit.c index 3069041b80..163dbcabf3 100644 --- a/builtin/commit.c +++ b/builtin/commit.c @@ -6,6 +6,7 @@ */ #include "cache.h" +#include "lockfile.h" #include "cache-tree.h" #include "color.h" #include "dir.h" @@ -26,18 +27,37 @@ #include "unpack-trees.h" #include "quote.h" #include "submodule.h" +#include "gpg-interface.h" +#include "column.h" +#include "sequencer.h" +#include "notes-utils.h" +#include "mailmap.h" +#include "sigchain.h" static const char * const builtin_commit_usage[] = { - "git commit [options] [--] <filepattern>...", + N_("git commit [<options>] [--] <pathspec>..."), NULL }; static const char * const builtin_status_usage[] = { - "git status [options] [--] <filepattern>...", + N_("git status [<options>] [--] <pathspec>..."), NULL }; -static const char implicit_ident_advice[] = +static const char implicit_ident_advice_noconfig[] = +N_("Your name and email address were configured automatically based\n" +"on your username and hostname. Please check that they are accurate.\n" +"You can suppress this message by setting them explicitly. Run the\n" +"following command and follow the instructions in your editor to edit\n" +"your configuration file:\n" +"\n" +" git config --global --edit\n" +"\n" +"After doing this, you may fix the identity used for this commit with:\n" +"\n" +" git commit --amend --reset-author\n"); + +static const char implicit_ident_advice_config[] = N_("Your name and email address were configured automatically based\n" "on your username and hostname. Please check that they are accurate.\n" "You can suppress this message by setting them explicitly:\n" @@ -59,8 +79,18 @@ N_("The previous cherry-pick is now empty, possibly due to conflict resolution.\ "If you wish to commit it anyway, use:\n" "\n" " git commit --allow-empty\n" +"\n"); + +static const char empty_cherry_pick_advice_single[] = +N_("Otherwise, please use 'git reset'\n"); + +static const char empty_cherry_pick_advice_multi[] = +N_("If you wish to skip this commit, use:\n" "\n" -"Otherwise, please use 'git reset'\n"); +" git reset\n" +"\n" +"Then \"git cherry-pick --continue\" will resume cherry-picking\n" +"the remaining commits.\n"); static const char *use_message_buffer; static const char commit_editmsg[] = "COMMIT_EDITMSG"; @@ -84,8 +114,11 @@ static char *fixup_message, *squash_message; static int all, also, interactive, patch_interactive, only, amend, signoff; static int edit_flag = -1; /* unspecified */ static int quiet, verbose, no_verify, allow_empty, dry_run, renew_authorship; +static int config_commit_verbose = -1; /* unspecified */ static int no_post_rewrite, allow_empty_message; static char *untracked_files_arg, *force_date, *ignore_submodule_arg; +static char *sign_commit; + /* * The default commit message cleanup mode will remove the lines * beginning with # (shell comments) and leading and trailing @@ -96,115 +129,66 @@ static char *untracked_files_arg, *force_date, *ignore_submodule_arg; static enum { CLEANUP_SPACE, CLEANUP_NONE, + CLEANUP_SCISSORS, CLEANUP_ALL } cleanup_mode; -static char *cleanup_arg; +static const char *cleanup_arg; static enum commit_whence whence; +static int sequencer_in_use; static int use_editor = 1, include_status = 1; -static int show_ignored_in_status; +static int show_ignored_in_status, have_option_m; static const char *only_include_assumed; -static struct strbuf message; +static struct strbuf message = STRBUF_INIT; -static int null_termination; -static enum { +static enum status_format { + STATUS_FORMAT_NONE = 0, STATUS_FORMAT_LONG, STATUS_FORMAT_SHORT, - STATUS_FORMAT_PORCELAIN -} status_format = STATUS_FORMAT_LONG; -static int status_show_branch; + STATUS_FORMAT_PORCELAIN, + + STATUS_FORMAT_UNSPECIFIED +} status_format = STATUS_FORMAT_UNSPECIFIED; static int opt_parse_m(const struct option *opt, const char *arg, int unset) { struct strbuf *buf = opt->value; - if (unset) + if (unset) { + have_option_m = 0; strbuf_setlen(buf, 0); - else { + } else { + have_option_m = 1; + if (buf->len) + strbuf_addch(buf, '\n'); strbuf_addstr(buf, arg); - strbuf_addstr(buf, "\n\n"); + strbuf_complete_line(buf); } return 0; } -static struct option builtin_commit_options[] = { - OPT__QUIET(&quiet, "suppress summary after successful commit"), - OPT__VERBOSE(&verbose, "show diff in commit message template"), - - OPT_GROUP("Commit message options"), - OPT_FILENAME('F', "file", &logfile, "read message from file"), - OPT_STRING(0, "author", &force_author, "author", "override author for commit"), - OPT_STRING(0, "date", &force_date, "date", "override date for commit"), - OPT_CALLBACK('m', "message", &message, "message", "commit message", opt_parse_m), - OPT_STRING('c', "reedit-message", &edit_message, "commit", "reuse and edit message from specified commit"), - OPT_STRING('C', "reuse-message", &use_message, "commit", "reuse message from specified commit"), - OPT_STRING(0, "fixup", &fixup_message, "commit", "use autosquash formatted message to fixup specified commit"), - OPT_STRING(0, "squash", &squash_message, "commit", "use autosquash formatted message to squash specified commit"), - OPT_BOOLEAN(0, "reset-author", &renew_authorship, "the commit is authored by me now (used with -C/-c/--amend)"), - OPT_BOOLEAN('s', "signoff", &signoff, "add Signed-off-by:"), - OPT_FILENAME('t', "template", &template_file, "use specified template file"), - OPT_BOOL('e', "edit", &edit_flag, "force edit of commit"), - OPT_STRING(0, "cleanup", &cleanup_arg, "default", "how to strip spaces and #comments from message"), - OPT_BOOLEAN(0, "status", &include_status, "include status in commit message template"), - /* end commit message options */ - - OPT_GROUP("Commit contents options"), - OPT_BOOLEAN('a', "all", &all, "commit all changed files"), - OPT_BOOLEAN('i', "include", &also, "add specified files to index for commit"), - OPT_BOOLEAN(0, "interactive", &interactive, "interactively add files"), - OPT_BOOLEAN('p', "patch", &patch_interactive, "interactively add changes"), - OPT_BOOLEAN('o', "only", &only, "commit only specified files"), - OPT_BOOLEAN('n', "no-verify", &no_verify, "bypass pre-commit hook"), - OPT_BOOLEAN(0, "dry-run", &dry_run, "show what would be committed"), - OPT_SET_INT(0, "short", &status_format, "show status concisely", - STATUS_FORMAT_SHORT), - OPT_BOOLEAN(0, "branch", &status_show_branch, "show branch information"), - OPT_SET_INT(0, "porcelain", &status_format, - "machine-readable output", STATUS_FORMAT_PORCELAIN), - OPT_BOOLEAN('z', "null", &null_termination, - "terminate entries with NUL"), - OPT_BOOLEAN(0, "amend", &amend, "amend previous commit"), - OPT_BOOLEAN(0, "no-post-rewrite", &no_post_rewrite, "bypass post-rewrite hook"), - { OPTION_STRING, 'u', "untracked-files", &untracked_files_arg, "mode", "show untracked files, optional modes: all, normal, no. (Default: all)", PARSE_OPT_OPTARG, NULL, (intptr_t)"all" }, - /* end commit contents options */ - - { OPTION_BOOLEAN, 0, "allow-empty", &allow_empty, NULL, - "ok to record an empty change", - PARSE_OPT_NOARG | PARSE_OPT_HIDDEN }, - { OPTION_BOOLEAN, 0, "allow-empty-message", &allow_empty_message, NULL, - "ok to record a change with an empty message", - PARSE_OPT_NOARG | PARSE_OPT_HIDDEN }, - - OPT_END() -}; - static void determine_whence(struct wt_status *s) { - if (file_exists(git_path("MERGE_HEAD"))) + if (file_exists(git_path_merge_head())) whence = FROM_MERGE; - else if (file_exists(git_path("CHERRY_PICK_HEAD"))) + else if (file_exists(git_path_cherry_pick_head())) { whence = FROM_CHERRY_PICK; + if (file_exists(git_path(SEQ_DIR))) + sequencer_in_use = 1; + } else whence = FROM_COMMIT; if (s) s->whence = whence; } -static const char *whence_s(void) +static void status_init_config(struct wt_status *s, config_fn_t fn) { - char *s = ""; - - switch (whence) { - case FROM_COMMIT: - break; - case FROM_MERGE: - s = "merge"; - break; - case FROM_CHERRY_PICK: - s = "cherry-pick"; - break; - } - - return s; + wt_status_prepare(s); + gitmodules_config(); + git_config(fn, s); + determine_whence(s); + init_diff_ui_defaults(); + s->hints = advice_status_hints; /* must come after git_config() */ } static void rollback_index_files(void) @@ -246,14 +230,15 @@ static int commit_index_files(void) * and return the paths that match the given pattern in list. */ static int list_paths(struct string_list *list, const char *with_tree, - const char *prefix, const char **pattern) + const char *prefix, const struct pathspec *pattern) { - int i; + int i, ret; char *m; - for (i = 0; pattern[i]; i++) - ; - m = xcalloc(1, i); + if (!pattern->nr) + return 0; + + m = xcalloc(1, pattern->nr); if (with_tree) { char *max_prefix = common_prefix(pattern); @@ -262,19 +247,21 @@ static int list_paths(struct string_list *list, const char *with_tree, } for (i = 0; i < active_nr; i++) { - struct cache_entry *ce = active_cache[i]; + const struct cache_entry *ce = active_cache[i]; struct string_list_item *item; if (ce->ce_flags & CE_UPDATE) continue; - if (!match_pathspec(pattern, ce->name, ce_namelen(ce), 0, m)) + if (!ce_path_match(ce, pattern, m)) continue; item = string_list_insert(list, ce->name); if (ce_skip_worktree(ce)) item->util = item; /* better a valid pointer than a fake one */ } - return report_path_error(m, pattern, prefix); + ret = report_path_error(m, pattern, prefix); + free(m); + return ret; } static void add_remove_files(struct string_list *list) @@ -315,7 +302,7 @@ static void create_base_index(const struct commit *current_head) opts.dst_index = &the_index; opts.fn = oneway_merge; - tree = parse_tree_indirect(current_head->object.sha1); + tree = parse_tree_indirect(current_head->object.oid.hash); if (!tree) die(_("failed to unpack HEAD tree object")); parse_tree(tree); @@ -334,35 +321,34 @@ static void refresh_cache_or_die(int refresh_flags) die_resolve_conflict("commit"); } -static char *prepare_index(int argc, const char **argv, const char *prefix, - const struct commit *current_head, int is_status) +static const char *prepare_index(int argc, const char **argv, const char *prefix, + const struct commit *current_head, int is_status) { - int fd; struct string_list partial; - const char **pathspec = NULL; - char *old_index_env = NULL; + struct pathspec pathspec; int refresh_flags = REFRESH_QUIET; + const char *ret; if (is_status) refresh_flags |= REFRESH_UNMERGED; + parse_pathspec(&pathspec, 0, + PATHSPEC_PREFER_FULL, + prefix, argv); - if (*argv) - pathspec = get_pathspec(prefix, argv); - - if (read_cache_preload(pathspec) < 0) + if (read_cache_preload(&pathspec) < 0) die(_("index file corrupt")); if (interactive) { - fd = hold_locked_index(&index_lock, 1); + char *old_index_env = NULL; + hold_locked_index(&index_lock, 1); refresh_cache_or_die(refresh_flags); - if (write_cache(fd, active_cache, active_nr) || - close_lock_file(&index_lock)) + if (write_locked_index(&the_index, &index_lock, CLOSE_LOCK)) die(_("unable to create temporary index")); old_index_env = getenv(INDEX_ENVIRONMENT); - setenv(INDEX_ENVIRONMENT, index_lock.filename, 1); + setenv(INDEX_ENVIRONMENT, get_lock_file_path(&index_lock), 1); if (interactive_add(argc, argv, prefix, patch_interactive) != 0) die(_("interactive add failed")); @@ -373,10 +359,17 @@ static char *prepare_index(int argc, const char **argv, const char *prefix, unsetenv(INDEX_ENVIRONMENT); discard_cache(); - read_cache_from(index_lock.filename); + read_cache_from(get_lock_file_path(&index_lock)); + if (update_main_cache_tree(WRITE_TREE_SILENT) == 0) { + if (reopen_lock_file(&index_lock) < 0) + die(_("unable to write index file")); + if (write_locked_index(&the_index, &index_lock, CLOSE_LOCK)) + die(_("unable to update temporary index")); + } else + warning(_("Failed to update main cache tree")); commit_style = COMMIT_NORMAL; - return index_lock.filename; + return get_lock_file_path(&index_lock); } /* @@ -391,16 +384,15 @@ static char *prepare_index(int argc, const char **argv, const char *prefix, * (A) if all goes well, commit the real index; * (B) on failure, rollback the real index. */ - if (all || (also && pathspec && *pathspec)) { - fd = hold_locked_index(&index_lock, 1); - add_files_to_cache(also ? prefix : NULL, pathspec, 0); + if (all || (also && pathspec.nr)) { + hold_locked_index(&index_lock, 1); + add_files_to_cache(also ? prefix : NULL, &pathspec, 0, 0); refresh_cache_or_die(refresh_flags); - update_main_cache_tree(1); - if (write_cache(fd, active_cache, active_nr) || - close_lock_file(&index_lock)) + update_main_cache_tree(WRITE_TREE_SILENT); + if (write_locked_index(&the_index, &index_lock, CLOSE_LOCK)) die(_("unable to write new_index file")); commit_style = COMMIT_NORMAL; - return index_lock.filename; + return get_lock_file_path(&index_lock); } /* @@ -412,13 +404,15 @@ static char *prepare_index(int argc, const char **argv, const char *prefix, * and create commit from the_index. * We still need to refresh the index here. */ - if (!pathspec || !*pathspec) { - fd = hold_locked_index(&index_lock, 1); + if (!only && !pathspec.nr) { + hold_locked_index(&index_lock, 1); refresh_cache_or_die(refresh_flags); + if (active_cache_changed + || !cache_tree_fully_valid(active_cache_tree)) + update_main_cache_tree(WRITE_TREE_SILENT); if (active_cache_changed) { - update_main_cache_tree(1); - if (write_cache(fd, active_cache, active_nr) || - commit_locked_index(&index_lock)) + if (write_locked_index(&the_index, &index_lock, + COMMIT_LOCK)) die(_("unable to write new_index file")); } else { rollback_lock_file(&index_lock); @@ -448,42 +442,44 @@ static char *prepare_index(int argc, const char **argv, const char *prefix, */ commit_style = COMMIT_PARTIAL; - if (whence != FROM_COMMIT) - die(_("cannot do a partial commit during a %s."), whence_s()); + if (whence != FROM_COMMIT) { + if (whence == FROM_MERGE) + die(_("cannot do a partial commit during a merge.")); + else if (whence == FROM_CHERRY_PICK) + die(_("cannot do a partial commit during a cherry-pick.")); + } - memset(&partial, 0, sizeof(partial)); - partial.strdup_strings = 1; - if (list_paths(&partial, !current_head ? NULL : "HEAD", prefix, pathspec)) + string_list_init(&partial, 1); + if (list_paths(&partial, !current_head ? NULL : "HEAD", prefix, &pathspec)) exit(1); discard_cache(); if (read_cache() < 0) die(_("cannot read the index")); - fd = hold_locked_index(&index_lock, 1); + hold_locked_index(&index_lock, 1); add_remove_files(&partial); refresh_cache(REFRESH_QUIET); - if (write_cache(fd, active_cache, active_nr) || - close_lock_file(&index_lock)) + update_main_cache_tree(WRITE_TREE_SILENT); + if (write_locked_index(&the_index, &index_lock, CLOSE_LOCK)) die(_("unable to write new_index file")); - fd = hold_lock_file_for_update(&false_lock, - git_path("next-index-%"PRIuMAX, - (uintmax_t) getpid()), - LOCK_DIE_ON_ERROR); + hold_lock_file_for_update(&false_lock, + git_path("next-index-%"PRIuMAX, + (uintmax_t) getpid()), + LOCK_DIE_ON_ERROR); create_base_index(current_head); add_remove_files(&partial); refresh_cache(REFRESH_QUIET); - if (write_cache(fd, active_cache, active_nr) || - close_lock_file(&false_lock)) + if (write_locked_index(&the_index, &false_lock, CLOSE_LOCK)) die(_("unable to write temporary index file")); discard_cache(); - read_cache_from(false_lock.filename); - - return false_lock.filename; + ret = get_lock_file_path(&false_lock); + read_cache_from(ret); + return ret; } static int run_status(FILE *fp, const char *index_file, const char *prefix, int nowarn, @@ -508,11 +504,15 @@ static int run_status(FILE *fp, const char *index_file, const char *prefix, int switch (status_format) { case STATUS_FORMAT_SHORT: - wt_shortstatus_print(s, null_termination, status_show_branch); + wt_shortstatus_print(s); break; case STATUS_FORMAT_PORCELAIN: - wt_porcelain_print(s, null_termination); + wt_porcelain_print(s); break; + case STATUS_FORMAT_UNSPECIFIED: + die("BUG: finalize_deferred_config() should have been called"); + break; + case STATUS_FORMAT_NONE: case STATUS_FORMAT_LONG: wt_status_print(s); break; @@ -526,104 +526,135 @@ static int is_a_merge(const struct commit *current_head) return !!(current_head->parents && current_head->parents->next); } -static const char sign_off_header[] = "Signed-off-by: "; +static void assert_split_ident(struct ident_split *id, const struct strbuf *buf) +{ + if (split_ident_line(id, buf->buf, buf->len) || !id->date_begin) + die("BUG: unable to parse our own ident: %s", buf->buf); +} + +static void export_one(const char *var, const char *s, const char *e, int hack) +{ + struct strbuf buf = STRBUF_INIT; + if (hack) + strbuf_addch(&buf, hack); + strbuf_addf(&buf, "%.*s", (int)(e - s), s); + setenv(var, buf.buf, 1); + strbuf_release(&buf); +} + +static int parse_force_date(const char *in, struct strbuf *out) +{ + strbuf_addch(out, '@'); + + if (parse_date(in, out) < 0) { + int errors = 0; + unsigned long t = approxidate_careful(in, &errors); + if (errors) + return -1; + strbuf_addf(out, "%lu", t); + } + + return 0; +} + +static void set_ident_var(char **buf, char *val) +{ + free(*buf); + *buf = val; +} static void determine_author_info(struct strbuf *author_ident) { char *name, *email, *date; + struct ident_split author; - name = getenv("GIT_AUTHOR_NAME"); - email = getenv("GIT_AUTHOR_EMAIL"); - date = getenv("GIT_AUTHOR_DATE"); + name = xstrdup_or_null(getenv("GIT_AUTHOR_NAME")); + email = xstrdup_or_null(getenv("GIT_AUTHOR_EMAIL")); + date = xstrdup_or_null(getenv("GIT_AUTHOR_DATE")); if (author_message) { - const char *a, *lb, *rb, *eol; + struct ident_split ident; + size_t len; + const char *a; - a = strstr(author_message_buffer, "\nauthor "); + a = find_commit_header(author_message_buffer, "author", &len); if (!a) - die(_("invalid commit: %s"), author_message); - - lb = strchrnul(a + strlen("\nauthor "), '<'); - rb = strchrnul(lb, '>'); - eol = strchrnul(rb, '\n'); - if (!*lb || !*rb || !*eol) - die(_("invalid commit: %s"), author_message); - - if (lb == a + strlen("\nauthor ")) - /* \nauthor <foo@example.com> */ - name = xcalloc(1, 1); - else - name = xmemdupz(a + strlen("\nauthor "), - (lb - strlen(" ") - - (a + strlen("\nauthor ")))); - email = xmemdupz(lb + strlen("<"), rb - (lb + strlen("<"))); - date = xmemdupz(rb + strlen("> "), eol - (rb + strlen("> "))); + die(_("commit '%s' lacks author header"), author_message); + if (split_ident_line(&ident, a, len) < 0) + die(_("commit '%s' has malformed author line"), author_message); + + set_ident_var(&name, xmemdupz(ident.name_begin, ident.name_end - ident.name_begin)); + set_ident_var(&email, xmemdupz(ident.mail_begin, ident.mail_end - ident.mail_begin)); + + if (ident.date_begin) { + struct strbuf date_buf = STRBUF_INIT; + strbuf_addch(&date_buf, '@'); + strbuf_add(&date_buf, ident.date_begin, ident.date_end - ident.date_begin); + strbuf_addch(&date_buf, ' '); + strbuf_add(&date_buf, ident.tz_begin, ident.tz_end - ident.tz_begin); + set_ident_var(&date, strbuf_detach(&date_buf, NULL)); + } } if (force_author) { - const char *lb = strstr(force_author, " <"); - const char *rb = strchr(force_author, '>'); + struct ident_split ident; - if (!lb || !rb) + if (split_ident_line(&ident, force_author, strlen(force_author)) < 0) die(_("malformed --author parameter")); - name = xstrndup(force_author, lb - force_author); - email = xstrndup(lb + 2, rb - (lb + 2)); + set_ident_var(&name, xmemdupz(ident.name_begin, ident.name_end - ident.name_begin)); + set_ident_var(&email, xmemdupz(ident.mail_begin, ident.mail_end - ident.mail_begin)); } - if (force_date) - date = force_date; - strbuf_addstr(author_ident, fmt_ident(name, email, date, - IDENT_ERROR_ON_NO_NAME)); -} - -static int ends_rfc2822_footer(struct strbuf *sb) -{ - int ch; - int hit = 0; - int i, j, k; - int len = sb->len; - int first = 1; - const char *buf = sb->buf; - - for (i = len - 1; i > 0; i--) { - if (hit && buf[i] == '\n') - break; - hit = (buf[i] == '\n'); + if (force_date) { + struct strbuf date_buf = STRBUF_INIT; + if (parse_force_date(force_date, &date_buf)) + die(_("invalid date format: %s"), force_date); + set_ident_var(&date, strbuf_detach(&date_buf, NULL)); } - while (i < len - 1 && buf[i] == '\n') - i++; + strbuf_addstr(author_ident, fmt_ident(name, email, date, IDENT_STRICT)); + assert_split_ident(&author, author_ident); + export_one("GIT_AUTHOR_NAME", author.name_begin, author.name_end, 0); + export_one("GIT_AUTHOR_EMAIL", author.mail_begin, author.mail_end, 0); + export_one("GIT_AUTHOR_DATE", author.date_begin, author.tz_end, '@'); + free(name); + free(email); + free(date); +} - for (; i < len; i = k) { - for (k = i; k < len && buf[k] != '\n'; k++) - ; /* do nothing */ - k++; +static int author_date_is_interesting(void) +{ + return author_message || force_date; +} - if ((buf[k] == ' ' || buf[k] == '\t') && !first) - continue; +static void adjust_comment_line_char(const struct strbuf *sb) +{ + char candidates[] = "#;@!$%^&|:"; + char *candidate; + const char *p; - first = 0; + comment_line_char = candidates[0]; + if (!memchr(sb->buf, comment_line_char, sb->len)) + return; - for (j = 0; i + j < len; j++) { - ch = buf[i + j]; - if (ch == ':') - break; - if (isalnum(ch) || - (ch == '-')) - continue; - return 0; + p = sb->buf; + candidate = strchr(candidates, *p); + if (candidate) + *candidate = ' '; + for (p = sb->buf; *p; p++) { + if ((p[0] == '\n' || p[0] == '\r') && p[1]) { + candidate = strchr(candidates, p[1]); + if (candidate) + *candidate = ' '; } } - return 1; -} -static char *cut_ident_timestamp_part(char *string) -{ - char *ket = strrchr(string, '>'); - if (!ket || ket[1] != ' ') - die(_("Malformed ident string: '%s'"), string); - *++ket = '\0'; - return ket; + for (p = candidates; *p == ' '; p++) + ; + if (!*p) + die(_("unable to select a comment character that is not used\n" + "in the current commit message")); + comment_line_char = *p; } static int prepare_to_commit(const char *index_file, const char *prefix, @@ -633,15 +664,17 @@ static int prepare_to_commit(const char *index_file, const char *prefix, { struct stat statbuf; struct strbuf committer_ident = STRBUF_INIT; - int commitable, saved_color_setting; + int commitable; struct strbuf sb = STRBUF_INIT; - char *buffer; const char *hook_arg1 = NULL; const char *hook_arg2 = NULL; - int ident_shown = 0; int clean_message_contents = (cleanup_mode != CLEANUP_NONE); + int old_display_comment_prefix; - if (!no_verify && run_hook(index_file, "pre-commit", NULL)) + /* This checks and barfs if author is badly specified */ + determine_author_info(author_ident); + + if (!no_verify && run_commit_hook(use_editor, index_file, "pre-commit", NULL)) return 0; if (squash_message) { @@ -663,7 +696,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix, } } - if (message.len) { + if (have_option_m) { strbuf_addbuf(&sb, &message); hook_arg1 = "message"; } else if (logfile && !strcmp(logfile, "-")) { @@ -678,10 +711,10 @@ static int prepare_to_commit(const char *index_file, const char *prefix, logfile); hook_arg1 = "message"; } else if (use_message) { + char *buffer; buffer = strstr(use_message_buffer, "\n\n"); - if (!buffer || buffer[2] == '\0') - die(_("commit has empty message")); - strbuf_add(&sb, buffer + 2, strlen(buffer + 2)); + if (buffer) + strbuf_addstr(&sb, buffer + 2); hook_arg1 = "commit"; hook_arg2 = use_message; } else if (fixup_message) { @@ -694,12 +727,21 @@ static int prepare_to_commit(const char *index_file, const char *prefix, format_commit_message(commit, "fixup! %s\n\n", &sb, &ctx); hook_arg1 = "message"; - } else if (!stat(git_path("MERGE_MSG"), &statbuf)) { - if (strbuf_read_file(&sb, git_path("MERGE_MSG"), 0) < 0) + } else if (!stat(git_path_merge_msg(), &statbuf)) { + /* + * prepend SQUASH_MSG here if it exists and a + * "merge --squash" was originally performed + */ + if (!stat(git_path_squash_msg(), &statbuf)) { + if (strbuf_read_file(&sb, git_path_squash_msg(), 0) < 0) + die_errno(_("could not read SQUASH_MSG")); + hook_arg1 = "squash"; + } else + hook_arg1 = "merge"; + if (strbuf_read_file(&sb, git_path_merge_msg(), 0) < 0) die_errno(_("could not read MERGE_MSG")); - hook_arg1 = "merge"; - } else if (!stat(git_path("SQUASH_MSG"), &statbuf)) { - if (strbuf_read_file(&sb, git_path("SQUASH_MSG"), 0) < 0) + } else if (!stat(git_path_squash_msg(), &statbuf)) { + if (strbuf_read_file(&sb, git_path_squash_msg(), 0) < 0) die_errno(_("could not read SQUASH_MSG")); hook_arg1 = "squash"; } else if (template_file) { @@ -730,100 +772,118 @@ static int prepare_to_commit(const char *index_file, const char *prefix, hook_arg2 = ""; } - s->fp = fopen(git_path(commit_editmsg), "w"); + s->fp = fopen_for_writing(git_path(commit_editmsg)); if (s->fp == NULL) die_errno(_("could not open '%s'"), git_path(commit_editmsg)); + /* Ignore status.displayCommentPrefix: we do need comments in COMMIT_EDITMSG. */ + old_display_comment_prefix = s->display_comment_prefix; + s->display_comment_prefix = 1; + + /* + * Most hints are counter-productive when the commit has + * already started. + */ + s->hints = 0; + if (clean_message_contents) - stripspace(&sb, 0); - - if (signoff) { - struct strbuf sob = STRBUF_INIT; - int i; - - strbuf_addstr(&sob, sign_off_header); - strbuf_addstr(&sob, fmt_name(getenv("GIT_COMMITTER_NAME"), - getenv("GIT_COMMITTER_EMAIL"))); - strbuf_addch(&sob, '\n'); - for (i = sb.len - 1; i > 0 && sb.buf[i - 1] != '\n'; i--) - ; /* do nothing */ - if (prefixcmp(sb.buf + i, sob.buf)) { - if (!i || !ends_rfc2822_footer(&sb)) - strbuf_addch(&sb, '\n'); - strbuf_addbuf(&sb, &sob); - } - strbuf_release(&sob); - } + strbuf_stripspace(&sb, 0); + + if (signoff) + append_signoff(&sb, ignore_non_trailer(&sb), 0); if (fwrite(sb.buf, 1, sb.len, s->fp) < sb.len) die_errno(_("could not write commit template")); + if (auto_comment_line_char) + adjust_comment_line_char(&sb); strbuf_release(&sb); - /* This checks and barfs if author is badly specified */ - determine_author_info(author_ident); - /* This checks if committer ident is explicitly given */ - strbuf_addstr(&committer_ident, git_committer_info(0)); + strbuf_addstr(&committer_ident, git_committer_info(IDENT_STRICT)); if (use_editor && include_status) { - char *ai_tmp, *ci_tmp; - if (whence != FROM_COMMIT) + int ident_shown = 0; + int saved_color_setting; + struct ident_split ci, ai; + + if (whence != FROM_COMMIT) { + if (cleanup_mode == CLEANUP_SCISSORS) + wt_status_add_cut_line(s->fp); status_printf_ln(s, GIT_COLOR_NORMAL, - _("\n" - "It looks like you may be committing a %s.\n" - "If this is not correct, please remove the file\n" - " %s\n" - "and try again.\n" - ""), - whence_s(), + whence == FROM_MERGE + ? _("\n" + "It looks like you may be committing a merge.\n" + "If this is not correct, please remove the file\n" + " %s\n" + "and try again.\n") + : _("\n" + "It looks like you may be committing a cherry-pick.\n" + "If this is not correct, please remove the file\n" + " %s\n" + "and try again.\n"), git_path(whence == FROM_MERGE ? "MERGE_HEAD" : "CHERRY_PICK_HEAD")); + } fprintf(s->fp, "\n"); - status_printf(s, GIT_COLOR_NORMAL, - _("Please enter the commit message for your changes.")); if (cleanup_mode == CLEANUP_ALL) - status_printf_more(s, GIT_COLOR_NORMAL, - _(" Lines starting\n" - "with '#' will be ignored, and an empty" - " message aborts the commit.\n")); + status_printf(s, GIT_COLOR_NORMAL, + _("Please enter the commit message for your changes." + " Lines starting\nwith '%c' will be ignored, and an empty" + " message aborts the commit.\n"), comment_line_char); + else if (cleanup_mode == CLEANUP_SCISSORS && whence == FROM_COMMIT) + wt_status_add_cut_line(s->fp); else /* CLEANUP_SPACE, that is. */ - status_printf_more(s, GIT_COLOR_NORMAL, - _(" Lines starting\n" - "with '#' will be kept; you may remove them" - " yourself if you want to.\n" - "An empty message aborts the commit.\n")); + status_printf(s, GIT_COLOR_NORMAL, + _("Please enter the commit message for your changes." + " Lines starting\n" + "with '%c' will be kept; you may remove them" + " yourself if you want to.\n" + "An empty message aborts the commit.\n"), comment_line_char); if (only_include_assumed) status_printf_ln(s, GIT_COLOR_NORMAL, "%s", only_include_assumed); - ai_tmp = cut_ident_timestamp_part(author_ident->buf); - ci_tmp = cut_ident_timestamp_part(committer_ident.buf); - if (strcmp(author_ident->buf, committer_ident.buf)) + /* + * These should never fail because they come from our own + * fmt_ident. They may fail the sane_ident test, but we know + * that the name and mail pointers will at least be valid, + * which is enough for our tests and printing here. + */ + assert_split_ident(&ai, author_ident); + assert_split_ident(&ci, &committer_ident); + + if (ident_cmp(&ai, &ci)) + status_printf_ln(s, GIT_COLOR_NORMAL, + _("%s" + "Author: %.*s <%.*s>"), + ident_shown++ ? "" : "\n", + (int)(ai.name_end - ai.name_begin), ai.name_begin, + (int)(ai.mail_end - ai.mail_begin), ai.mail_begin); + + if (author_date_is_interesting()) status_printf_ln(s, GIT_COLOR_NORMAL, _("%s" - "Author: %s"), + "Date: %s"), ident_shown++ ? "" : "\n", - author_ident->buf); + show_ident_date(&ai, DATE_MODE(NORMAL))); - if (!user_ident_sufficiently_given()) + if (!committer_ident_sufficiently_given()) status_printf_ln(s, GIT_COLOR_NORMAL, _("%s" - "Committer: %s"), + "Committer: %.*s <%.*s>"), ident_shown++ ? "" : "\n", - committer_ident.buf); + (int)(ci.name_end - ci.name_begin), ci.name_begin, + (int)(ci.mail_end - ci.mail_begin), ci.mail_begin); if (ident_shown) - status_printf_ln(s, GIT_COLOR_NORMAL, ""); + status_printf_ln(s, GIT_COLOR_NORMAL, "%s", ""); saved_color_setting = s->use_color; s->use_color = 0; commitable = run_status(s->fp, index_file, prefix, 1, s); s->use_color = saved_color_setting; - - *ai_tmp = ' '; - *ci_tmp = ' '; } else { unsigned char sha1[20]; const char *parent = "HEAD"; @@ -836,8 +896,22 @@ static int prepare_to_commit(const char *index_file, const char *prefix, if (get_sha1(parent, sha1)) commitable = !!active_nr; - else - commitable = index_differs_from(parent, 0); + else { + /* + * Unless the user did explicitly request a submodule + * ignore mode by passing a command line option we do + * not ignore any changed submodule SHA-1s when + * comparing index and parent, no matter what is + * configured. Otherwise we won't commit any + * submodules which were manually staged, which would + * be really confusing. + */ + int diff_flags = DIFF_OPT_OVERRIDE_SUBMODULE_CONFIG; + if (ignore_submodule_arg && + !strcmp(ignore_submodule_arg, "all")) + diff_flags |= DIFF_OPT_IGNORE_SUBMODULES; + commitable = index_differs_from(parent, diff_flags); + } } strbuf_release(&committer_ident); @@ -850,11 +924,17 @@ static int prepare_to_commit(const char *index_file, const char *prefix, */ if (!commitable && whence != FROM_MERGE && !allow_empty && !(amend && is_a_merge(current_head))) { + s->display_comment_prefix = old_display_comment_prefix; run_status(stdout, index_file, prefix, 0, s); if (amend) fputs(_(empty_amend_advice), stderr); - else if (whence == FROM_CHERRY_PICK) + else if (whence == FROM_CHERRY_PICK) { fputs(_(empty_cherry_pick_advice), stderr); + if (!sequencer_in_use) + fputs(_(empty_cherry_pick_advice_single), stderr); + else + fputs(_(empty_cherry_pick_advice_multi), stderr); + } return 0; } @@ -870,8 +950,8 @@ static int prepare_to_commit(const char *index_file, const char *prefix, return 0; } - if (run_hook(index_file, "prepare-commit-msg", - git_path(commit_editmsg), hook_arg1, hook_arg2, NULL)) + if (run_commit_hook(use_editor, index_file, "prepare-commit-msg", + git_path(commit_editmsg), hook_arg1, hook_arg2, NULL)) return 0; if (use_editor) { @@ -887,34 +967,17 @@ static int prepare_to_commit(const char *index_file, const char *prefix, } if (!no_verify && - run_hook(index_file, "commit-msg", git_path(commit_editmsg), NULL)) { + run_commit_hook(use_editor, index_file, "commit-msg", git_path(commit_editmsg), NULL)) { return 0; } return 1; } -/* - * Find out if the message in the strbuf contains only whitespace and - * Signed-off-by lines. - */ -static int message_is_empty(struct strbuf *sb) +static int rest_is_empty(struct strbuf *sb, int start) { - struct strbuf tmpl = STRBUF_INIT; + int i, eol; const char *nl; - int eol, i, start = 0; - - if (cleanup_mode == CLEANUP_NONE && sb->len) - return 0; - - /* See if the template is just a prefix of the message. */ - if (template_file && strbuf_read_file(&tmpl, template_file, 0) > 0) { - stripspace(&tmpl, cleanup_mode == CLEANUP_ALL); - if (start + tmpl.len <= sb->len && - memcmp(tmpl.buf, sb->buf + start, tmpl.len) == 0) - start += tmpl.len; - } - strbuf_release(&tmpl); /* Check if the rest is just whitespace and Signed-of-by's. */ for (i = start; i < sb->len; i++) { @@ -925,7 +988,7 @@ static int message_is_empty(struct strbuf *sb) eol = sb->len; if (strlen(sign_off_header) <= eol - i && - !prefixcmp(sb->buf + i, sign_off_header)) { + starts_with(sb->buf + i, sign_off_header)) { i = eol; continue; } @@ -937,11 +1000,45 @@ static int message_is_empty(struct strbuf *sb) return 1; } +/* + * Find out if the message in the strbuf contains only whitespace and + * Signed-off-by lines. + */ +static int message_is_empty(struct strbuf *sb) +{ + if (cleanup_mode == CLEANUP_NONE && sb->len) + return 0; + return rest_is_empty(sb, 0); +} + +/* + * See if the user edited the message in the editor or left what + * was in the template intact + */ +static int template_untouched(struct strbuf *sb) +{ + struct strbuf tmpl = STRBUF_INIT; + const char *start; + + if (cleanup_mode == CLEANUP_NONE && sb->len) + return 0; + + if (!template_file || strbuf_read_file(&tmpl, template_file, 0) <= 0) + return 0; + + strbuf_stripspace(&tmpl, cleanup_mode == CLEANUP_ALL); + if (!skip_prefix(sb->buf, tmpl.buf, &start)) + start = sb->buf; + strbuf_release(&tmpl); + return rest_is_empty(sb, start - sb->buf); +} + static const char *find_author_by_nickname(const char *name) { struct rev_info revs; struct commit *commit; struct strbuf buf = STRBUF_INIT; + struct string_list mailmap = STRING_LIST_INIT_NODUP; const char *av[20]; int ac = 0; @@ -952,16 +1049,21 @@ static const char *find_author_by_nickname(const char *name) av[++ac] = buf.buf; av[++ac] = NULL; setup_revisions(ac, av, &revs, NULL); - prepare_revision_walk(&revs); + revs.mailmap = &mailmap; + read_mailmap(revs.mailmap, NULL); + + if (prepare_revision_walk(&revs)) + die(_("revision walk setup failed")); commit = get_revision(&revs); if (commit) { struct pretty_print_context ctx = {0}; - ctx.date_mode = DATE_NORMAL; + ctx.date_mode.type = DATE_NORMAL; strbuf_release(&buf); - format_commit_message(commit, "%an <%ae>", &buf, &ctx); + format_commit_message(commit, "%aN <%aE>", &buf, &ctx); + clear_mailmap(&mailmap); return strbuf_detach(&buf, NULL); } - die(_("No existing author found with '%s'"), name); + die(_("--author '%s' is not 'Name <email>' and matches no existing author"), name); } @@ -981,27 +1083,54 @@ static void handle_untracked_files_arg(struct wt_status *s) static const char *read_commit_message(const char *name) { - const char *out_enc, *out; + const char *out_enc; struct commit *commit; commit = lookup_commit_reference_by_name(name); if (!commit) die(_("could not lookup commit %s"), name); out_enc = get_commit_output_encoding(); - out = logmsg_reencode(commit, out_enc); + return logmsg_reencode(commit, NULL, out_enc); +} - /* - * If we failed to reencode the buffer, just copy it - * byte for byte so the user can try to fix it up. - * This also handles the case where input and output - * encodings are identical. - */ - if (out == NULL) - out = xstrdup(commit->buffer); - return out; +/* + * Enumerate what needs to be propagated when --porcelain + * is not in effect here. + */ +static struct status_deferred_config { + enum status_format status_format; + int show_branch; +} status_deferred_config = { + STATUS_FORMAT_UNSPECIFIED, + -1 /* unspecified */ +}; + +static void finalize_deferred_config(struct wt_status *s) +{ + int use_deferred_config = (status_format != STATUS_FORMAT_PORCELAIN && + !s->null_termination); + + if (s->null_termination) { + if (status_format == STATUS_FORMAT_NONE || + status_format == STATUS_FORMAT_UNSPECIFIED) + status_format = STATUS_FORMAT_PORCELAIN; + else if (status_format == STATUS_FORMAT_LONG) + die(_("--long and -z are incompatible")); + } + + if (use_deferred_config && status_format == STATUS_FORMAT_UNSPECIFIED) + status_format = status_deferred_config.status_format; + if (status_format == STATUS_FORMAT_UNSPECIFIED) + status_format = STATUS_FORMAT_NONE; + + if (use_deferred_config && s->show_branch < 0) + s->show_branch = status_deferred_config.show_branch; + if (s->show_branch < 0) + s->show_branch = 0; } static int parse_and_validate_options(int argc, const char *argv[], + const struct option *options, const char * const usage[], const char *prefix, struct commit *current_head, @@ -1009,8 +1138,8 @@ static int parse_and_validate_options(int argc, const char *argv[], { int f = 0; - argc = parse_options(argc, argv, prefix, builtin_commit_options, usage, - 0); + argc = parse_options(argc, argv, prefix, options, usage, 0); + finalize_deferred_config(s); if (force_author && !strchr(force_author, '>')) force_author = find_author_by_nickname(force_author); @@ -1018,18 +1147,20 @@ static int parse_and_validate_options(int argc, const char *argv[], if (force_author && renew_authorship) die(_("Using both --reset-author and --author does not make sense")); - if (logfile || message.len || use_message || fixup_message) + if (logfile || have_option_m || use_message || fixup_message) use_editor = 0; if (0 <= edit_flag) use_editor = edit_flag; - if (!use_editor) - setenv("GIT_EDITOR", ":", 1); /* Sanity check options */ if (amend && !current_head) die(_("You have nothing to amend.")); - if (amend && whence != FROM_COMMIT) - die(_("You are in the middle of a %s -- cannot amend."), whence_s()); + if (amend && whence != FROM_COMMIT) { + if (whence == FROM_MERGE) + die(_("You are in the middle of a merge -- cannot amend.")); + else if (whence == FROM_CHERRY_PICK) + die(_("You are in the middle of a cherry-pick -- cannot amend.")); + } if (fixup_message && squash_message) die(_("Options --squash and --fixup cannot be used together")); if (use_message) @@ -1042,8 +1173,10 @@ static int parse_and_validate_options(int argc, const char *argv[], f++; if (f > 1) die(_("Only one of -c/-C/-F/--fixup can be used.")); - if (message.len && f > 0) + if (have_option_m && f > 0) die((_("Option -m cannot be combined with -c/-C/-F/--fixup."))); + if (f || have_option_m) + template_file = NULL; if (edit_message) use_message = edit_message; if (amend && !use_message && !fixup_message) @@ -1065,14 +1198,14 @@ static int parse_and_validate_options(int argc, const char *argv[], if (patch_interactive) interactive = 1; - if (!!also + !!only + !!all + !!interactive > 1) + if (also + only + all + interactive > 1) die(_("Only one of --include/--only/--all/--interactive/--patch can be used.")); if (argc == 0 && (also || (only && !amend))) die(_("No paths with --include/--only does not make sense.")); if (argc == 0 && only && amend) only_include_assumed = _("Clever... amending the last one with dirty index."); if (argc > 0 && !also && !only) - only_include_assumed = _("Explicit paths specified without -i nor -o; assuming --only paths..."); + only_include_assumed = _("Explicit paths specified without -i or -o; assuming --only paths..."); if (!cleanup_arg || !strcmp(cleanup_arg, "default")) cleanup_mode = use_editor ? CLEANUP_ALL : CLEANUP_SPACE; else if (!strcmp(cleanup_arg, "verbatim")) @@ -1081,6 +1214,8 @@ static int parse_and_validate_options(int argc, const char *argv[], cleanup_mode = CLEANUP_SPACE; else if (!strcmp(cleanup_arg, "strip")) cleanup_mode = CLEANUP_ALL; + else if (!strcmp(cleanup_arg, "scissors")) + cleanup_mode = use_editor ? CLEANUP_SCISSORS : CLEANUP_SPACE; else die(_("Invalid cleanup mode %s"), cleanup_arg); @@ -1089,9 +1224,7 @@ static int parse_and_validate_options(int argc, const char *argv[], if (all && argc > 0) die(_("Paths with -a does not make sense.")); - if (null_termination && status_format == STATUS_FORMAT_LONG) - status_format = STATUS_FORMAT_PORCELAIN; - if (status_format != STATUS_FORMAT_LONG) + if (status_format != STATUS_FORMAT_NONE) dry_run = 1; return argc; @@ -1110,22 +1243,21 @@ static int dry_run_commit(int argc, const char **argv, const char *prefix, return commitable ? 0 : 1; } -static int parse_status_slot(const char *var, int offset) +static int parse_status_slot(const char *slot) { - if (!strcasecmp(var+offset, "header")) + if (!strcasecmp(slot, "header")) return WT_STATUS_HEADER; - if (!strcasecmp(var+offset, "branch")) + if (!strcasecmp(slot, "branch")) return WT_STATUS_ONBRANCH; - if (!strcasecmp(var+offset, "updated") - || !strcasecmp(var+offset, "added")) + if (!strcasecmp(slot, "updated") || !strcasecmp(slot, "added")) return WT_STATUS_UPDATED; - if (!strcasecmp(var+offset, "changed")) + if (!strcasecmp(slot, "changed")) return WT_STATUS_CHANGED; - if (!strcasecmp(var+offset, "untracked")) + if (!strcasecmp(slot, "untracked")) return WT_STATUS_UNTRACKED; - if (!strcasecmp(var+offset, "nobranch")) + if (!strcasecmp(slot, "nobranch")) return WT_STATUS_NOBRANCH; - if (!strcasecmp(var+offset, "unmerged")) + if (!strcasecmp(slot, "unmerged")) return WT_STATUS_UNMERGED; return -1; } @@ -1133,7 +1265,10 @@ static int parse_status_slot(const char *var, int offset) static int git_status_config(const char *k, const char *v, void *cb) { struct wt_status *s = cb; + const char *slot_name; + if (starts_with(k, "column.")) + return git_column_config(k, v, "status", &s->colopts); if (!strcmp(k, "status.submodulesummary")) { int is_bool; s->submodule_summary = git_config_bool_or_int(k, v, &is_bool); @@ -1141,18 +1276,33 @@ static int git_status_config(const char *k, const char *v, void *cb) s->submodule_summary = -1; return 0; } + if (!strcmp(k, "status.short")) { + if (git_config_bool(k, v)) + status_deferred_config.status_format = STATUS_FORMAT_SHORT; + else + status_deferred_config.status_format = STATUS_FORMAT_NONE; + return 0; + } + if (!strcmp(k, "status.branch")) { + status_deferred_config.show_branch = git_config_bool(k, v); + return 0; + } if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) { s->use_color = git_config_colorbool(k, v); return 0; } - if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) { - int slot = parse_status_slot(k, 13); + if (!strcmp(k, "status.displaycommentprefix")) { + s->display_comment_prefix = git_config_bool(k, v); + return 0; + } + if (skip_prefix(k, "status.color.", &slot_name) || + skip_prefix(k, "color.status.", &slot_name)) { + int slot = parse_status_slot(slot_name); if (slot < 0) return 0; if (!v) return config_error_nonbool(k); - color_parse(v, k, s->color_palette[slot]); - return 0; + return color_parse(v, s->color_palette[slot]); } if (!strcmp(k, "status.relativepaths")) { s->relative_paths = git_config_bool(k, v); @@ -1176,73 +1326,79 @@ static int git_status_config(const char *k, const char *v, void *cb) int cmd_status(int argc, const char **argv, const char *prefix) { - struct wt_status s; + static struct wt_status s; int fd; unsigned char sha1[20]; static struct option builtin_status_options[] = { - OPT__VERBOSE(&verbose, "be verbose"), + OPT__VERBOSE(&verbose, N_("be verbose")), OPT_SET_INT('s', "short", &status_format, - "show status concisely", STATUS_FORMAT_SHORT), - OPT_BOOLEAN('b', "branch", &status_show_branch, - "show branch information"), + N_("show status concisely"), STATUS_FORMAT_SHORT), + OPT_BOOL('b', "branch", &s.show_branch, + N_("show branch information")), OPT_SET_INT(0, "porcelain", &status_format, - "machine-readable output", + N_("machine-readable output"), STATUS_FORMAT_PORCELAIN), - OPT_BOOLEAN('z', "null", &null_termination, - "terminate entries with NUL"), + OPT_SET_INT(0, "long", &status_format, + N_("show status in long format (default)"), + STATUS_FORMAT_LONG), + OPT_BOOL('z', "null", &s.null_termination, + N_("terminate entries with NUL")), { OPTION_STRING, 'u', "untracked-files", &untracked_files_arg, - "mode", - "show untracked files, optional modes: all, normal, no. (Default: all)", + N_("mode"), + N_("show untracked files, optional modes: all, normal, no. (Default: all)"), PARSE_OPT_OPTARG, NULL, (intptr_t)"all" }, - OPT_BOOLEAN(0, "ignored", &show_ignored_in_status, - "show ignored files"), - { OPTION_STRING, 0, "ignore-submodules", &ignore_submodule_arg, "when", - "ignore changes to submodules, optional when: all, dirty, untracked. (Default: all)", + OPT_BOOL(0, "ignored", &show_ignored_in_status, + N_("show ignored files")), + { OPTION_STRING, 0, "ignore-submodules", &ignore_submodule_arg, N_("when"), + N_("ignore changes to submodules, optional when: all, dirty, untracked. (Default: all)"), PARSE_OPT_OPTARG, NULL, (intptr_t)"all" }, + OPT_COLUMN(0, "column", &s.colopts, N_("list untracked files in columns")), OPT_END(), }; if (argc == 2 && !strcmp(argv[1], "-h")) usage_with_options(builtin_status_usage, builtin_status_options); - wt_status_prepare(&s); - gitmodules_config(); - git_config(git_status_config, &s); - determine_whence(&s); + status_init_config(&s, git_status_config); argc = parse_options(argc, argv, prefix, builtin_status_options, builtin_status_usage, 0); - - if (null_termination && status_format == STATUS_FORMAT_LONG) - status_format = STATUS_FORMAT_PORCELAIN; + finalize_colopts(&s.colopts, -1); + finalize_deferred_config(&s); handle_untracked_files_arg(&s); if (show_ignored_in_status) s.show_ignored_files = 1; - if (*argv) - s.pathspec = get_pathspec(prefix, argv); + parse_pathspec(&s.pathspec, 0, + PATHSPEC_PREFER_FULL, + prefix, argv); - read_cache_preload(s.pathspec); - refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, s.pathspec, NULL, NULL); + read_cache_preload(&s.pathspec); + refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, &s.pathspec, NULL, NULL); fd = hold_locked_index(&index_lock, 0); - if (0 <= fd) - update_index_if_able(&the_index, &index_lock); s.is_initial = get_sha1(s.reference, sha1) ? 1 : 0; s.ignore_submodule_arg = ignore_submodule_arg; wt_status_collect(&s); + if (0 <= fd) + update_index_if_able(&the_index, &index_lock); + if (s.relative_paths) s.prefix = prefix; switch (status_format) { case STATUS_FORMAT_SHORT: - wt_shortstatus_print(&s, null_termination, status_show_branch); + wt_shortstatus_print(&s); break; case STATUS_FORMAT_PORCELAIN: - wt_porcelain_print(&s, null_termination); + wt_porcelain_print(&s); + break; + case STATUS_FORMAT_UNSPECIFIED: + die("BUG: finalize_deferred_config() should have been called"); break; + case STATUS_FORMAT_NONE: case STATUS_FORMAT_LONG: s.verbose = verbose; s.ignore_submodule_arg = ignore_submodule_arg; @@ -1252,6 +1408,22 @@ int cmd_status(int argc, const char **argv, const char *prefix) return 0; } +static const char *implicit_ident_advice(void) +{ + char *user_config = expand_user_path("~/.gitconfig"); + char *xdg_config = xdg_config_home("config"); + int config_exists = file_exists(user_config) || file_exists(xdg_config); + + free(user_config); + free(xdg_config); + + if (config_exists) + return _(implicit_ident_advice_config); + else + return _(implicit_ident_advice_noconfig); + +} + static void print_summary(const char *prefix, const unsigned char *sha1, int initial_commit) { @@ -1267,7 +1439,7 @@ static void print_summary(const char *prefix, const unsigned char *sha1, commit = lookup_commit(sha1); if (!commit) die(_("couldn't look up newly created commit")); - if (!commit || parse_commit(commit)) + if (parse_commit(commit)) die(_("could not parse newly created commit")); strbuf_addstr(&format, "format:%h] %s"); @@ -1278,12 +1450,19 @@ static void print_summary(const char *prefix, const unsigned char *sha1, strbuf_addstr(&format, "\n Author: "); strbuf_addbuf_percentquote(&format, &author_ident); } - if (!user_ident_sufficiently_given()) { + if (author_date_is_interesting()) { + struct strbuf date = STRBUF_INIT; + format_commit_message(commit, "%ad", &date, &pctx); + strbuf_addstr(&format, "\n Date: "); + strbuf_addbuf_percentquote(&format, &date); + strbuf_release(&date); + } + if (!committer_ident_sufficiently_given()) { strbuf_addstr(&format, "\n Committer: "); strbuf_addbuf_percentquote(&format, &committer_ident); if (advice_implicit_identity) { strbuf_addch(&format, '\n'); - strbuf_addstr(&format, _(implicit_ident_advice)); + strbuf_addstr(&format, implicit_ident_advice()); } } strbuf_release(&author_ident); @@ -1304,14 +1483,12 @@ static void print_summary(const char *prefix, const unsigned char *sha1, rev.diffopt.break_opt = 0; diff_setup_done(&rev.diffopt); - head = resolve_ref_unsafe("HEAD", junk_sha1, 0, NULL); - printf("[%s%s ", - !prefixcmp(head, "refs/heads/") ? - head + 11 : - !strcmp(head, "HEAD") ? - _("detached HEAD") : - head, - initial_commit ? _(" (root-commit)") : ""); + head = resolve_ref_unsafe("HEAD", 0, junk_sha1, NULL); + if (!strcmp(head, "HEAD")) + head = _("detached HEAD"); + else + skip_prefix(head, "refs/heads/", &head); + printf("[%s%s ", head, initial_commit ? _(" (root-commit)") : ""); if (!log_tree_commit(&rev, commit)) { rev.always_show_header = 1; @@ -1325,6 +1502,7 @@ static void print_summary(const char *prefix, const unsigned char *sha1, static int git_commit_config(const char *k, const char *v, void *cb) { struct wt_status *s = cb; + int status; if (!strcmp(k, "commit.template")) return git_config_pathname(&template_file, k, v); @@ -1332,30 +1510,41 @@ static int git_commit_config(const char *k, const char *v, void *cb) include_status = git_config_bool(k, v); return 0; } + if (!strcmp(k, "commit.cleanup")) + return git_config_string(&cleanup_arg, k, v); + if (!strcmp(k, "commit.gpgsign")) { + sign_commit = git_config_bool(k, v) ? "" : NULL; + return 0; + } + if (!strcmp(k, "commit.verbose")) { + int is_bool; + config_commit_verbose = git_config_bool_or_int(k, v, &is_bool); + return 0; + } + status = git_gpg_config(k, v, NULL); + if (status) + return status; return git_status_config(k, v, s); } -static const char post_rewrite_hook[] = "hooks/post-rewrite"; - static int run_rewrite_hook(const unsigned char *oldsha1, const unsigned char *newsha1) { /* oldsha1 SP newsha1 LF NUL */ static char buf[2*40 + 3]; - struct child_process proc; + struct child_process proc = CHILD_PROCESS_INIT; const char *argv[3]; int code; size_t n; - if (access(git_path(post_rewrite_hook), X_OK) < 0) + argv[0] = find_hook("post-rewrite"); + if (!argv[0]) return 0; - argv[0] = git_path(post_rewrite_hook); argv[1] = "amend"; argv[2] = NULL; - memset(&proc, 0, sizeof(proc)); proc.argv = argv; proc.in = -1; proc.stdout_to_stderr = 1; @@ -1365,42 +1554,126 @@ static int run_rewrite_hook(const unsigned char *oldsha1, return code; n = snprintf(buf, sizeof(buf), "%s %s\n", sha1_to_hex(oldsha1), sha1_to_hex(newsha1)); + sigchain_push(SIGPIPE, SIG_IGN); write_in_full(proc.in, buf, n); close(proc.in); + sigchain_pop(SIGPIPE); return finish_command(&proc); } +int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...) +{ + const char *hook_env[3] = { NULL }; + char index[PATH_MAX]; + va_list args; + int ret; + + snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file); + hook_env[0] = index; + + /* + * Let the hook know that no editor will be launched. + */ + if (!editor_is_used) + hook_env[1] = "GIT_EDITOR=:"; + + va_start(args, name); + ret = run_hook_ve(hook_env, name, args); + va_end(args); + + return ret; +} + int cmd_commit(int argc, const char **argv, const char *prefix) { + static struct wt_status s; + static struct option builtin_commit_options[] = { + OPT__QUIET(&quiet, N_("suppress summary after successful commit")), + OPT__VERBOSE(&verbose, N_("show diff in commit message template")), + + OPT_GROUP(N_("Commit message options")), + OPT_FILENAME('F', "file", &logfile, N_("read message from file")), + OPT_STRING(0, "author", &force_author, N_("author"), N_("override author for commit")), + OPT_STRING(0, "date", &force_date, N_("date"), N_("override date for commit")), + OPT_CALLBACK('m', "message", &message, N_("message"), N_("commit message"), opt_parse_m), + OPT_STRING('c', "reedit-message", &edit_message, N_("commit"), N_("reuse and edit message from specified commit")), + OPT_STRING('C', "reuse-message", &use_message, N_("commit"), N_("reuse message from specified commit")), + OPT_STRING(0, "fixup", &fixup_message, N_("commit"), N_("use autosquash formatted message to fixup specified commit")), + OPT_STRING(0, "squash", &squash_message, N_("commit"), N_("use autosquash formatted message to squash specified commit")), + OPT_BOOL(0, "reset-author", &renew_authorship, N_("the commit is authored by me now (used with -C/-c/--amend)")), + OPT_BOOL('s', "signoff", &signoff, N_("add Signed-off-by:")), + OPT_FILENAME('t', "template", &template_file, N_("use specified template file")), + OPT_BOOL('e', "edit", &edit_flag, N_("force edit of commit")), + OPT_STRING(0, "cleanup", &cleanup_arg, N_("default"), N_("how to strip spaces and #comments from message")), + OPT_BOOL(0, "status", &include_status, N_("include status in commit message template")), + { OPTION_STRING, 'S', "gpg-sign", &sign_commit, N_("key-id"), + N_("GPG sign commit"), PARSE_OPT_OPTARG, NULL, (intptr_t) "" }, + /* end commit message options */ + + OPT_GROUP(N_("Commit contents options")), + OPT_BOOL('a', "all", &all, N_("commit all changed files")), + OPT_BOOL('i', "include", &also, N_("add specified files to index for commit")), + OPT_BOOL(0, "interactive", &interactive, N_("interactively add files")), + OPT_BOOL('p', "patch", &patch_interactive, N_("interactively add changes")), + OPT_BOOL('o', "only", &only, N_("commit only specified files")), + OPT_BOOL('n', "no-verify", &no_verify, N_("bypass pre-commit hook")), + OPT_BOOL(0, "dry-run", &dry_run, N_("show what would be committed")), + OPT_SET_INT(0, "short", &status_format, N_("show status concisely"), + STATUS_FORMAT_SHORT), + OPT_BOOL(0, "branch", &s.show_branch, N_("show branch information")), + OPT_SET_INT(0, "porcelain", &status_format, + N_("machine-readable output"), STATUS_FORMAT_PORCELAIN), + OPT_SET_INT(0, "long", &status_format, + N_("show status in long format (default)"), + STATUS_FORMAT_LONG), + OPT_BOOL('z', "null", &s.null_termination, + N_("terminate entries with NUL")), + OPT_BOOL(0, "amend", &amend, N_("amend previous commit")), + OPT_BOOL(0, "no-post-rewrite", &no_post_rewrite, N_("bypass post-rewrite hook")), + { OPTION_STRING, 'u', "untracked-files", &untracked_files_arg, N_("mode"), N_("show untracked files, optional modes: all, normal, no. (Default: all)"), PARSE_OPT_OPTARG, NULL, (intptr_t)"all" }, + /* end commit contents options */ + + OPT_HIDDEN_BOOL(0, "allow-empty", &allow_empty, + N_("ok to record an empty change")), + OPT_HIDDEN_BOOL(0, "allow-empty-message", &allow_empty_message, + N_("ok to record a change with an empty message")), + + OPT_END() + }; + struct strbuf sb = STRBUF_INIT; struct strbuf author_ident = STRBUF_INIT; const char *index_file, *reflog_msg; - char *nl, *p; + char *nl; unsigned char sha1[20]; - struct ref_lock *ref_lock; struct commit_list *parents = NULL, **pptr = &parents; struct stat statbuf; - int allow_fast_forward = 1; - struct wt_status s; struct commit *current_head = NULL; struct commit_extra_header *extra = NULL; + struct ref_transaction *transaction; + struct strbuf err = STRBUF_INIT; if (argc == 2 && !strcmp(argv[1], "-h")) usage_with_options(builtin_commit_usage, builtin_commit_options); - wt_status_prepare(&s); - git_config(git_commit_config, &s); - determine_whence(&s); + status_init_config(&s, git_commit_config); + status_format = STATUS_FORMAT_NONE; /* Ignore status.short */ + s.colopts = 0; if (get_sha1("HEAD", sha1)) current_head = NULL; else { current_head = lookup_commit_or_die(sha1, "HEAD"); - if (!current_head || parse_commit(current_head)) + if (parse_commit(current_head)) die(_("could not parse HEAD commit")); } - argc = parse_and_validate_options(argc, argv, builtin_commit_usage, + verbose = -1; /* unspecified */ + argc = parse_and_validate_options(argc, argv, builtin_commit_options, + builtin_commit_usage, prefix, current_head, &s); + if (verbose == -1) + verbose = (config_commit_verbose < 0) ? 0 : config_commit_verbose; + if (dry_run) return dry_run_commit(argc, argv, prefix, current_head, &s); index_file = prepare_index(argc, argv, prefix, current_head, 0); @@ -1428,15 +1701,16 @@ int cmd_commit(int argc, const char **argv, const char *prefix) } else if (whence == FROM_MERGE) { struct strbuf m = STRBUF_INIT; FILE *fp; + int allow_fast_forward = 1; if (!reflog_msg) reflog_msg = "commit (merge)"; pptr = &commit_list_insert(current_head, pptr)->next; - fp = fopen(git_path("MERGE_HEAD"), "r"); + fp = fopen(git_path_merge_head(), "r"); if (fp == NULL) die_errno(_("could not open '%s' for reading"), - git_path("MERGE_HEAD")); - while (strbuf_getline(&m, fp, '\n') != EOF) { + git_path_merge_head()); + while (strbuf_getline_lf(&m, fp) != EOF) { struct commit *parent; parent = get_merge_parent(m.buf); @@ -1446,8 +1720,8 @@ int cmd_commit(int argc, const char **argv, const char *prefix) } fclose(fp); strbuf_release(&m); - if (!stat(git_path("MERGE_MODE"), &statbuf)) { - if (strbuf_read_file(&sb, git_path("MERGE_MODE"), 0) < 0) + if (!stat(git_path_merge_mode(), &statbuf)) { + if (strbuf_read_file(&sb, git_path_merge_mode(), 0) < 0) die_errno(_("could not read MERGE_MODE")); if (!strcmp(sb.buf, "no-ff")) allow_fast_forward = 0; @@ -1470,15 +1744,17 @@ int cmd_commit(int argc, const char **argv, const char *prefix) die(_("could not read commit message: %s"), strerror(saved_errno)); } - /* Truncate the message just before the diff, if any. */ - if (verbose) { - p = strstr(sb.buf, "\ndiff --git "); - if (p != NULL) - strbuf_setlen(&sb, p - sb.buf + 1); - } + if (verbose || /* Truncate the message just before the diff, if any. */ + cleanup_mode == CLEANUP_SCISSORS) + wt_status_truncate_message_at_cut_line(&sb); if (cleanup_mode != CLEANUP_NONE) - stripspace(&sb, cleanup_mode == CLEANUP_ALL); + strbuf_stripspace(&sb, cleanup_mode == CLEANUP_ALL); + if (template_untouched(&sb) && !allow_empty_message) { + rollback_index_files(); + fprintf(stderr, _("Aborting commit; you did not edit the message.\n")); + exit(1); + } if (message_is_empty(&sb) && !allow_empty_message) { rollback_index_files(); fprintf(stderr, _("Aborting commit due to empty commit message.\n")); @@ -1486,26 +1762,21 @@ int cmd_commit(int argc, const char **argv, const char *prefix) } if (amend) { - extra = read_commit_extra_headers(current_head); + const char *exclude_gpgsig[2] = { "gpgsig", NULL }; + extra = read_commit_extra_headers(current_head, exclude_gpgsig); } else { struct commit_extra_header **tail = &extra; append_merge_tag_headers(parents, &tail); } - if (commit_tree_extended(&sb, active_cache_tree->sha1, parents, sha1, - author_ident.buf, extra)) { + if (commit_tree_extended(sb.buf, sb.len, active_cache_tree->sha1, + parents, sha1, author_ident.buf, sign_commit, extra)) { rollback_index_files(); die(_("failed to write commit object")); } strbuf_release(&author_ident); free_commit_extra_headers(extra); - ref_lock = lock_any_ref_for_update("HEAD", - !current_head - ? NULL - : current_head->object.sha1, - 0); - nl = strchr(sb.buf, '\n'); if (nl) strbuf_setlen(&sb, nl + 1 - sb.buf); @@ -1514,41 +1785,45 @@ int cmd_commit(int argc, const char **argv, const char *prefix) strbuf_insert(&sb, 0, reflog_msg, strlen(reflog_msg)); strbuf_insert(&sb, strlen(reflog_msg), ": ", 2); - if (!ref_lock) { - rollback_index_files(); - die(_("cannot lock HEAD ref")); - } - if (write_ref_sha1(ref_lock, sha1, sb.buf) < 0) { + transaction = ref_transaction_begin(&err); + if (!transaction || + ref_transaction_update(transaction, "HEAD", sha1, + current_head + ? current_head->object.oid.hash : null_sha1, + 0, sb.buf, &err) || + ref_transaction_commit(transaction, &err)) { rollback_index_files(); - die(_("cannot update HEAD ref")); + die("%s", err.buf); } + ref_transaction_free(transaction); - unlink(git_path("CHERRY_PICK_HEAD")); - unlink(git_path("REVERT_HEAD")); - unlink(git_path("MERGE_HEAD")); - unlink(git_path("MERGE_MSG")); - unlink(git_path("MERGE_MODE")); - unlink(git_path("SQUASH_MSG")); + unlink(git_path_cherry_pick_head()); + unlink(git_path_revert_head()); + unlink(git_path_merge_head()); + unlink(git_path_merge_msg()); + unlink(git_path_merge_mode()); + unlink(git_path_squash_msg()); if (commit_index_files()) die (_("Repository has been updated, but unable to write\n" - "new_index file. Check that disk is not full or quota is\n" + "new_index file. Check that disk is not full and quota is\n" "not exceeded, and then \"git reset HEAD\" to recover.")); rerere(0); - run_hook(get_index_file(), "post-commit", NULL); + run_commit_hook(use_editor, get_index_file(), "post-commit", NULL); if (amend && !no_post_rewrite) { struct notes_rewrite_cfg *cfg; cfg = init_copy_notes_for_rewrite("amend"); if (cfg) { /* we are amending, so current_head is not NULL */ - copy_note_for_rewrite(cfg, current_head->object.sha1, sha1); - finish_copy_notes_for_rewrite(cfg); + copy_note_for_rewrite(cfg, current_head->object.oid.hash, sha1); + finish_copy_notes_for_rewrite(cfg, "Notes added by 'git commit --amend'"); } - run_rewrite_hook(current_head->object.sha1, sha1); + run_rewrite_hook(current_head->object.oid.hash, sha1); } if (!quiet) print_summary(prefix, sha1, !current_head); + strbuf_release(&err); return 0; } diff --git a/builtin/config.c b/builtin/config.c index 0315ad76f8..1d7c6ef558 100644 --- a/builtin/config.c +++ b/builtin/config.c @@ -2,9 +2,11 @@ #include "cache.h" #include "color.h" #include "parse-options.h" +#include "urlmatch.h" +#include "quote.h" static const char *const builtin_config_usage[] = { - "git config [options]", + N_("git config [<options>]"), NULL }; @@ -12,19 +14,21 @@ static char *key; static regex_t *key_regexp; static regex_t *regexp; static int show_keys; +static int omit_values; static int use_key_regexp; static int do_all; static int do_not_match; -static int seen; static char delim = '='; static char key_delim = ' '; static char term = '\n'; static int use_global_config, use_system_config, use_local_config; -static const char *given_config_file; +static struct git_config_source given_config_source; static int actions, types; static const char *get_color_slot, *get_colorbool_slot; static int end_null; +static int respect_includes = -1; +static int show_origin; #define ACTION_GET (1<<0) #define ACTION_GET_ALL (1<<1) @@ -41,6 +45,7 @@ static int end_null; #define ACTION_SET_ALL (1<<12) #define ACTION_GET_COLOR (1<<13) #define ACTION_GET_COLORBOOL (1<<14) +#define ACTION_GET_URLMATCH (1<<15) #define TYPE_BOOL (1<<0) #define TYPE_INT (1<<1) @@ -48,32 +53,37 @@ static int end_null; #define TYPE_PATH (1<<3) static struct option builtin_config_options[] = { - OPT_GROUP("Config file location"), - OPT_BOOLEAN(0, "global", &use_global_config, "use global config file"), - OPT_BOOLEAN(0, "system", &use_system_config, "use system config file"), - OPT_BOOLEAN(0, "local", &use_local_config, "use repository config file"), - OPT_STRING('f', "file", &given_config_file, "file", "use given config file"), - OPT_GROUP("Action"), - OPT_BIT(0, "get", &actions, "get value: name [value-regex]", ACTION_GET), - OPT_BIT(0, "get-all", &actions, "get all values: key [value-regex]", ACTION_GET_ALL), - OPT_BIT(0, "get-regexp", &actions, "get values for regexp: name-regex [value-regex]", ACTION_GET_REGEXP), - OPT_BIT(0, "replace-all", &actions, "replace all matching variables: name value [value_regex]", ACTION_REPLACE_ALL), - OPT_BIT(0, "add", &actions, "adds a new variable: name value", ACTION_ADD), - OPT_BIT(0, "unset", &actions, "removes a variable: name [value-regex]", ACTION_UNSET), - OPT_BIT(0, "unset-all", &actions, "removes all matches: name [value-regex]", ACTION_UNSET_ALL), - OPT_BIT(0, "rename-section", &actions, "rename section: old-name new-name", ACTION_RENAME_SECTION), - OPT_BIT(0, "remove-section", &actions, "remove a section: name", ACTION_REMOVE_SECTION), - OPT_BIT('l', "list", &actions, "list all", ACTION_LIST), - OPT_BIT('e', "edit", &actions, "opens an editor", ACTION_EDIT), - OPT_STRING(0, "get-color", &get_color_slot, "slot", "find the color configured: [default]"), - OPT_STRING(0, "get-colorbool", &get_colorbool_slot, "slot", "find the color setting: [stdout-is-tty]"), - OPT_GROUP("Type"), - OPT_BIT(0, "bool", &types, "value is \"true\" or \"false\"", TYPE_BOOL), - OPT_BIT(0, "int", &types, "value is decimal number", TYPE_INT), - OPT_BIT(0, "bool-or-int", &types, "value is --bool or --int", TYPE_BOOL_OR_INT), - OPT_BIT(0, "path", &types, "value is a path (file or directory name)", TYPE_PATH), - OPT_GROUP("Other"), - OPT_BOOLEAN('z', "null", &end_null, "terminate values with NUL byte"), + OPT_GROUP(N_("Config file location")), + OPT_BOOL(0, "global", &use_global_config, N_("use global config file")), + OPT_BOOL(0, "system", &use_system_config, N_("use system config file")), + OPT_BOOL(0, "local", &use_local_config, N_("use repository config file")), + OPT_STRING('f', "file", &given_config_source.file, N_("file"), N_("use given config file")), + OPT_STRING(0, "blob", &given_config_source.blob, N_("blob-id"), N_("read config from given blob object")), + OPT_GROUP(N_("Action")), + OPT_BIT(0, "get", &actions, N_("get value: name [value-regex]"), ACTION_GET), + OPT_BIT(0, "get-all", &actions, N_("get all values: key [value-regex]"), ACTION_GET_ALL), + OPT_BIT(0, "get-regexp", &actions, N_("get values for regexp: name-regex [value-regex]"), ACTION_GET_REGEXP), + OPT_BIT(0, "get-urlmatch", &actions, N_("get value specific for the URL: section[.var] URL"), ACTION_GET_URLMATCH), + OPT_BIT(0, "replace-all", &actions, N_("replace all matching variables: name value [value_regex]"), ACTION_REPLACE_ALL), + OPT_BIT(0, "add", &actions, N_("add a new variable: name value"), ACTION_ADD), + OPT_BIT(0, "unset", &actions, N_("remove a variable: name [value-regex]"), ACTION_UNSET), + OPT_BIT(0, "unset-all", &actions, N_("remove all matches: name [value-regex]"), ACTION_UNSET_ALL), + OPT_BIT(0, "rename-section", &actions, N_("rename section: old-name new-name"), ACTION_RENAME_SECTION), + OPT_BIT(0, "remove-section", &actions, N_("remove a section: name"), ACTION_REMOVE_SECTION), + OPT_BIT('l', "list", &actions, N_("list all"), ACTION_LIST), + OPT_BIT('e', "edit", &actions, N_("open an editor"), ACTION_EDIT), + OPT_BIT(0, "get-color", &actions, N_("find the color configured: slot [default]"), ACTION_GET_COLOR), + OPT_BIT(0, "get-colorbool", &actions, N_("find the color setting: slot [stdout-is-tty]"), ACTION_GET_COLORBOOL), + OPT_GROUP(N_("Type")), + OPT_BIT(0, "bool", &types, N_("value is \"true\" or \"false\""), TYPE_BOOL), + OPT_BIT(0, "int", &types, N_("value is decimal number"), TYPE_INT), + OPT_BIT(0, "bool-or-int", &types, N_("value is --bool or --int"), TYPE_BOOL_OR_INT), + OPT_BIT(0, "path", &types, N_("value is a path (file or directory name)"), TYPE_PATH), + OPT_GROUP(N_("Other")), + OPT_BOOL('z', "null", &end_null, N_("terminate values with NUL byte")), + OPT_BOOL(0, "name-only", &omit_values, N_("show variable names only")), + OPT_BOOL(0, "includes", &respect_includes, N_("respect include directives on lookup")), + OPT_BOOL(0, "show-origin", &show_origin, N_("show origin of config (file, standard input, blob, command line)")), OPT_END(), }; @@ -84,22 +94,85 @@ static void check_argc(int argc, int min, int max) { usage_with_options(builtin_config_usage, builtin_config_options); } +static void show_config_origin(struct strbuf *buf) +{ + const char term = end_null ? '\0' : '\t'; + + strbuf_addstr(buf, current_config_origin_type()); + strbuf_addch(buf, ':'); + if (end_null) + strbuf_addstr(buf, current_config_name()); + else + quote_c_style(current_config_name(), buf, NULL, 0); + strbuf_addch(buf, term); +} + static int show_all_config(const char *key_, const char *value_, void *cb) { - if (value_) + if (show_origin) { + struct strbuf buf = STRBUF_INIT; + show_config_origin(&buf); + /* Use fwrite as "buf" can contain \0's if "end_null" is set. */ + fwrite(buf.buf, 1, buf.len, stdout); + strbuf_release(&buf); + } + if (!omit_values && value_) printf("%s%c%s%c", key_, delim, value_, term); else printf("%s%c", key_, term); return 0; } -static int show_config(const char *key_, const char *value_, void *cb) +struct strbuf_list { + struct strbuf *items; + int nr; + int alloc; +}; + +static int format_config(struct strbuf *buf, const char *key_, const char *value_) +{ + if (show_origin) + show_config_origin(buf); + if (show_keys) + strbuf_addstr(buf, key_); + if (!omit_values) { + if (show_keys) + strbuf_addch(buf, key_delim); + + if (types == TYPE_INT) + strbuf_addf(buf, "%"PRId64, + git_config_int64(key_, value_ ? value_ : "")); + else if (types == TYPE_BOOL) + strbuf_addstr(buf, git_config_bool(key_, value_) ? + "true" : "false"); + else if (types == TYPE_BOOL_OR_INT) { + int is_bool, v; + v = git_config_bool_or_int(key_, value_, &is_bool); + if (is_bool) + strbuf_addstr(buf, v ? "true" : "false"); + else + strbuf_addf(buf, "%d", v); + } else if (types == TYPE_PATH) { + const char *v; + if (git_config_pathname(&v, key_, value_) < 0) + return -1; + strbuf_addstr(buf, v); + free((char *)v); + } else if (value_) { + strbuf_addstr(buf, value_); + } else { + /* Just show the key name; back out delimiter */ + if (show_keys) + strbuf_setlen(buf, buf->len - 1); + } + } + strbuf_addch(buf, term); + return 0; +} + +static int collect_config(const char *key_, const char *value_, void *cb) { - char value[256]; - const char *vptr = value; - int must_free_vptr = 0; - int dup_error = 0; - int must_print_delim = 0; + struct strbuf_list *values = cb; if (!use_key_regexp && strcmp(key_, key)) return 0; @@ -109,68 +182,17 @@ static int show_config(const char *key_, const char *value_, void *cb) (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0))) return 0; - if (show_keys) { - printf("%s", key_); - must_print_delim = 1; - } - if (seen && !do_all) - dup_error = 1; - if (types == TYPE_INT) - sprintf(value, "%d", git_config_int(key_, value_?value_:"")); - else if (types == TYPE_BOOL) - vptr = git_config_bool(key_, value_) ? "true" : "false"; - else if (types == TYPE_BOOL_OR_INT) { - int is_bool, v; - v = git_config_bool_or_int(key_, value_, &is_bool); - if (is_bool) - vptr = v ? "true" : "false"; - else - sprintf(value, "%d", v); - } else if (types == TYPE_PATH) { - git_config_pathname(&vptr, key_, value_); - must_free_vptr = 1; - } else if (value_) { - vptr = value_; - } else { - /* Just show the key name */ - vptr = ""; - must_print_delim = 0; - } - seen++; - if (dup_error) { - error("More than one value for the key %s: %s", - key_, vptr); - } - else { - if (must_print_delim) - printf("%c", key_delim); - printf("%s%c", vptr, term); - } - if (must_free_vptr) - /* If vptr must be freed, it's a pointer to a - * dynamically allocated buffer, it's safe to cast to - * const. - */ - free((char *)vptr); + ALLOC_GROW(values->items, values->nr + 1, values->alloc); + strbuf_init(&values->items[values->nr], 0); - return 0; + return format_config(&values->items[values->nr++], key_, value_); } static int get_value(const char *key_, const char *regex_) { - int ret = -1; - char *global = NULL, *repo_config = NULL; - const char *system_wide = NULL, *local; - - local = config_exclusive_filename; - if (!local) { - const char *home = getenv("HOME"); - local = repo_config = git_pathdup("config"); - if (home) - global = xstrdup(mkpath("%s/.gitconfig", home)); - if (git_config_system()) - system_wide = git_etc_gitconfig(); - } + int ret = CONFIG_GENERIC_ERROR; + struct strbuf_list values = {NULL}; + int i; if (use_key_regexp) { char *tl; @@ -191,13 +213,17 @@ static int get_value(const char *key_, const char *regex_) key_regexp = (regex_t*)xmalloc(sizeof(regex_t)); if (regcomp(key_regexp, key, REG_EXTENDED)) { - fprintf(stderr, "Invalid key pattern: %s\n", key_); - free(key); + error("invalid key pattern: %s", key_); + free(key_regexp); + key_regexp = NULL; + ret = CONFIG_INVALID_PATTERN; goto free_strings; } } else { - if (git_config_parse_key(key_, &key, NULL)) + if (git_config_parse_key(key_, &key, NULL)) { + ret = CONFIG_INVALID_KEY; goto free_strings; + } } if (regex_) { @@ -208,46 +234,43 @@ static int get_value(const char *key_, const char *regex_) regexp = (regex_t*)xmalloc(sizeof(regex_t)); if (regcomp(regexp, regex_, REG_EXTENDED)) { - fprintf(stderr, "Invalid pattern: %s\n", regex_); + error("invalid pattern: %s", regex_); + free(regexp); + regexp = NULL; + ret = CONFIG_INVALID_PATTERN; goto free_strings; } } - if (do_all && system_wide) - git_config_from_file(show_config, system_wide, NULL); - if (do_all && global) - git_config_from_file(show_config, global, NULL); - if (do_all) - git_config_from_file(show_config, local, NULL); - git_config_from_parameters(show_config, NULL); - if (!do_all && !seen) - git_config_from_file(show_config, local, NULL); - if (!do_all && !seen && global) - git_config_from_file(show_config, global, NULL); - if (!do_all && !seen && system_wide) - git_config_from_file(show_config, system_wide, NULL); + git_config_with_options(collect_config, &values, + &given_config_source, respect_includes); + + ret = !values.nr; + + for (i = 0; i < values.nr; i++) { + struct strbuf *buf = values.items + i; + if (do_all || i == values.nr - 1) + fwrite(buf->buf, 1, buf->len, stdout); + strbuf_release(buf); + } + free(values.items); +free_strings: free(key); + if (key_regexp) { + regfree(key_regexp); + free(key_regexp); + } if (regexp) { regfree(regexp); free(regexp); } - if (do_all) - ret = !seen; - else - ret = (seen == 1) ? 0 : seen > 1 ? 2 : 1; - -free_strings: - free(repo_config); - free(global); return ret; } static char *normalize_value(const char *key, const char *value) { - char *normalized; - if (!value) return NULL; @@ -258,27 +281,21 @@ static char *normalize_value(const char *key, const char *value) * "~/foobar/" in the config file, and to expand the ~ * when retrieving the value. */ - normalized = xstrdup(value); - else { - normalized = xmalloc(64); - if (types == TYPE_INT) { - int v = git_config_int(key, value); - sprintf(normalized, "%d", v); - } - else if (types == TYPE_BOOL) - sprintf(normalized, "%s", - git_config_bool(key, value) ? "true" : "false"); - else if (types == TYPE_BOOL_OR_INT) { - int is_bool, v; - v = git_config_bool_or_int(key, value, &is_bool); - if (!is_bool) - sprintf(normalized, "%d", v); - else - sprintf(normalized, "%s", v ? "true" : "false"); - } + return xstrdup(value); + if (types == TYPE_INT) + return xstrfmt("%"PRId64, git_config_int64(key, value)); + if (types == TYPE_BOOL) + return xstrdup(git_config_bool(key, value) ? "true" : "false"); + if (types == TYPE_BOOL_OR_INT) { + int is_bool, v; + v = git_config_bool_or_int(key, value, &is_bool); + if (!is_bool) + return xstrfmt("%d", v); + else + return xstrdup(v ? "true" : "false"); } - return normalized; + die("BUG: cannot normalize type %d", types); } static int get_color_found; @@ -291,20 +308,25 @@ static int git_get_color_config(const char *var, const char *value, void *cb) if (!strcmp(var, get_color_slot)) { if (!value) config_error_nonbool(var); - color_parse(value, var, parsed_color); + if (color_parse(value, parsed_color) < 0) + return -1; get_color_found = 1; } return 0; } -static void get_color(const char *def_color) +static void get_color(const char *var, const char *def_color) { + get_color_slot = var; get_color_found = 0; parsed_color[0] = '\0'; - git_config(git_get_color_config, NULL); + git_config_with_options(git_get_color_config, NULL, + &given_config_source, respect_includes); - if (!get_color_found && def_color) - color_parse(def_color, "command line", parsed_color); + if (!get_color_found && def_color) { + if (color_parse(def_color, parsed_color) < 0) + die(_("unable to parse default color value")); + } fputs(parsed_color, stdout); } @@ -324,11 +346,14 @@ static int git_get_colorbool_config(const char *var, const char *value, return 0; } -static int get_colorbool(int print) +static int get_colorbool(const char *var, int print) { + get_colorbool_slot = var; get_colorbool_found = -1; get_diff_color_found = -1; - git_config(git_get_colorbool_config, NULL); + get_color_ui_found = -1; + git_config_with_options(git_get_colorbool_config, NULL, + &given_config_source, respect_includes); if (get_colorbool_found < 0) { if (!strcmp(get_colorbool_slot, "color.diff")) @@ -337,6 +362,10 @@ static int get_colorbool(int print) get_colorbool_found = get_color_ui_found; } + if (get_colorbool_found < 0) + /* default value if none found in config */ + get_colorbool_found = GIT_COLOR_AUTO; + get_colorbool_found = want_color(get_colorbool_found); if (print) { @@ -346,44 +375,167 @@ static int get_colorbool(int print) return get_colorbool_found ? 0 : 1; } +static void check_write(void) +{ + if (!given_config_source.file && !startup_info->have_repository) + die("not in a git directory"); + + if (given_config_source.use_stdin) + die("writing to stdin is not supported"); + + if (given_config_source.blob) + die("writing config blobs is not supported"); +} + +struct urlmatch_current_candidate_value { + char value_is_null; + struct strbuf value; +}; + +static int urlmatch_collect_fn(const char *var, const char *value, void *cb) +{ + struct string_list *values = cb; + struct string_list_item *item = string_list_insert(values, var); + struct urlmatch_current_candidate_value *matched = item->util; + + if (!matched) { + matched = xmalloc(sizeof(*matched)); + strbuf_init(&matched->value, 0); + item->util = matched; + } else { + strbuf_reset(&matched->value); + } + + if (value) { + strbuf_addstr(&matched->value, value); + matched->value_is_null = 0; + } else { + matched->value_is_null = 1; + } + return 0; +} + +static int get_urlmatch(const char *var, const char *url) +{ + int ret; + char *section_tail; + struct string_list_item *item; + struct urlmatch_config config = { STRING_LIST_INIT_DUP }; + struct string_list values = STRING_LIST_INIT_DUP; + + config.collect_fn = urlmatch_collect_fn; + config.cascade_fn = NULL; + config.cb = &values; + + if (!url_normalize(url, &config.url)) + die("%s", config.url.err); + + config.section = xstrdup_tolower(var); + section_tail = strchr(config.section, '.'); + if (section_tail) { + *section_tail = '\0'; + config.key = section_tail + 1; + show_keys = 0; + } else { + config.key = NULL; + show_keys = 1; + } + + git_config_with_options(urlmatch_config_entry, &config, + &given_config_source, respect_includes); + + ret = !values.nr; + + for_each_string_list_item(item, &values) { + struct urlmatch_current_candidate_value *matched = item->util; + struct strbuf buf = STRBUF_INIT; + + format_config(&buf, item->string, + matched->value_is_null ? NULL : matched->value.buf); + fwrite(buf.buf, 1, buf.len, stdout); + strbuf_release(&buf); + + strbuf_release(&matched->value); + } + string_list_clear(&config.vars, 1); + string_list_clear(&values, 1); + free(config.url.url); + + free((void *)config.section); + return ret; +} + +static char *default_user_config(void) +{ + struct strbuf buf = STRBUF_INIT; + strbuf_addf(&buf, + _("# This is Git's per-user configuration file.\n" + "[user]\n" + "# Please adapt and uncomment the following lines:\n" + "# name = %s\n" + "# email = %s\n"), + ident_default_name(), + ident_default_email()); + return strbuf_detach(&buf, NULL); +} + int cmd_config(int argc, const char **argv, const char *prefix) { int nongit = !startup_info->have_repository; char *value; - config_exclusive_filename = getenv(CONFIG_ENVIRONMENT); + given_config_source.file = getenv(CONFIG_ENVIRONMENT); argc = parse_options(argc, argv, prefix, builtin_config_options, builtin_config_usage, PARSE_OPT_STOP_AT_NON_OPTION); - if (use_global_config + use_system_config + use_local_config + !!given_config_file > 1) { + if (use_global_config + use_system_config + use_local_config + + !!given_config_source.file + !!given_config_source.blob > 1) { error("only one config file at a time."); usage_with_options(builtin_config_usage, builtin_config_options); } + if (given_config_source.file && + !strcmp(given_config_source.file, "-")) { + given_config_source.file = NULL; + given_config_source.use_stdin = 1; + } + if (use_global_config) { - char *home = getenv("HOME"); - if (home) { - char *user_config = xstrdup(mkpath("%s/.gitconfig", home)); - config_exclusive_filename = user_config; - } else { + char *user_config = expand_user_path("~/.gitconfig"); + char *xdg_config = xdg_config_home("config"); + + if (!user_config) + /* + * It is unknown if HOME/.gitconfig exists, so + * we do not know if we should write to XDG + * location; error out even if XDG_CONFIG_HOME + * is set and points at a sane location. + */ die("$HOME not set"); - } + + if (access_or_warn(user_config, R_OK, 0) && + xdg_config && !access_or_warn(xdg_config, R_OK, 0)) + given_config_source.file = xdg_config; + else + given_config_source.file = user_config; } else if (use_system_config) - config_exclusive_filename = git_etc_gitconfig(); + given_config_source.file = git_etc_gitconfig(); else if (use_local_config) - config_exclusive_filename = git_pathdup("config"); - else if (given_config_file) { - if (!is_absolute_path(given_config_file) && prefix) - config_exclusive_filename = prefix_filename(prefix, - strlen(prefix), - given_config_file); - else - config_exclusive_filename = given_config_file; + given_config_source.file = git_pathdup("config"); + else if (given_config_source.file) { + if (!is_absolute_path(given_config_source.file) && prefix) + given_config_source.file = + xstrdup(prefix_filename(prefix, + strlen(prefix), + given_config_source.file)); } + if (respect_includes == -1) + respect_includes = !given_config_source.file; + if (end_null) { term = '\0'; delim = '\n'; @@ -395,12 +547,7 @@ int cmd_config(int argc, const char **argv, const char *prefix) usage_with_options(builtin_config_usage, builtin_config_options); } - if (get_color_slot) - actions |= ACTION_GET_COLOR; - if (get_colorbool_slot) - actions |= ACTION_GET_COLORBOOL; - - if ((get_color_slot || get_colorbool_slot) && types) { + if ((actions & (ACTION_GET_COLOR|ACTION_GET_COLORBOOL)) && types) { error("--get-color and variable type are incoherent"); usage_with_options(builtin_config_usage, builtin_config_options); } @@ -417,50 +564,90 @@ int cmd_config(int argc, const char **argv, const char *prefix) default: usage_with_options(builtin_config_usage, builtin_config_options); } + if (omit_values && + !(actions == ACTION_LIST || actions == ACTION_GET_REGEXP)) { + error("--name-only is only applicable to --list or --get-regexp"); + usage_with_options(builtin_config_usage, builtin_config_options); + } + + if (show_origin && !(actions & + (ACTION_GET|ACTION_GET_ALL|ACTION_GET_REGEXP|ACTION_LIST))) { + error("--show-origin is only applicable to --get, --get-all, " + "--get-regexp, and --list."); + usage_with_options(builtin_config_usage, builtin_config_options); + } if (actions == ACTION_LIST) { check_argc(argc, 0, 0); - if (git_config(show_all_config, NULL) < 0) { - if (config_exclusive_filename) + if (git_config_with_options(show_all_config, NULL, + &given_config_source, + respect_includes) < 0) { + if (given_config_source.file) die_errno("unable to read config file '%s'", - config_exclusive_filename); + given_config_source.file); else die("error processing config file(s)"); } } else if (actions == ACTION_EDIT) { + char *config_file; + check_argc(argc, 0, 0); - if (!config_exclusive_filename && nongit) + if (!given_config_source.file && nongit) die("not in a git directory"); + if (given_config_source.use_stdin) + die("editing stdin is not supported"); + if (given_config_source.blob) + die("editing blobs is not supported"); git_config(git_default_config, NULL); - launch_editor(config_exclusive_filename ? - config_exclusive_filename : git_path("config"), - NULL, NULL); + config_file = xstrdup(given_config_source.file ? + given_config_source.file : git_path("config")); + if (use_global_config) { + int fd = open(config_file, O_CREAT | O_EXCL | O_WRONLY, 0666); + if (fd) { + char *content = default_user_config(); + write_str_in_full(fd, content); + free(content); + close(fd); + } + else if (errno != EEXIST) + die_errno(_("cannot create configuration file %s"), config_file); + } + launch_editor(config_file, NULL, NULL); + free(config_file); } else if (actions == ACTION_SET) { int ret; + check_write(); check_argc(argc, 2, 2); value = normalize_value(argv[0], argv[1]); - ret = git_config_set(argv[0], value); + ret = git_config_set_in_file_gently(given_config_source.file, argv[0], value); if (ret == CONFIG_NOTHING_SET) error("cannot overwrite multiple values with a single value\n" - " Use a regexp, --add or --set-all to change %s.", argv[0]); + " Use a regexp, --add or --replace-all to change %s.", argv[0]); return ret; } else if (actions == ACTION_SET_ALL) { + check_write(); check_argc(argc, 2, 3); value = normalize_value(argv[0], argv[1]); - return git_config_set_multivar(argv[0], value, argv[2], 0); + return git_config_set_multivar_in_file_gently(given_config_source.file, + argv[0], value, argv[2], 0); } else if (actions == ACTION_ADD) { + check_write(); check_argc(argc, 2, 2); value = normalize_value(argv[0], argv[1]); - return git_config_set_multivar(argv[0], value, "^$", 0); + return git_config_set_multivar_in_file_gently(given_config_source.file, + argv[0], value, + CONFIG_REGEX_NONE, 0); } else if (actions == ACTION_REPLACE_ALL) { + check_write(); check_argc(argc, 2, 3); value = normalize_value(argv[0], argv[1]); - return git_config_set_multivar(argv[0], value, argv[2], 1); + return git_config_set_multivar_in_file_gently(given_config_source.file, + argv[0], value, argv[2], 1); } else if (actions == ACTION_GET) { check_argc(argc, 1, 2); @@ -478,21 +665,32 @@ int cmd_config(int argc, const char **argv, const char *prefix) check_argc(argc, 1, 2); return get_value(argv[0], argv[1]); } + else if (actions == ACTION_GET_URLMATCH) { + check_argc(argc, 2, 2); + return get_urlmatch(argv[0], argv[1]); + } else if (actions == ACTION_UNSET) { + check_write(); check_argc(argc, 1, 2); if (argc == 2) - return git_config_set_multivar(argv[0], NULL, argv[1], 0); + return git_config_set_multivar_in_file_gently(given_config_source.file, + argv[0], NULL, argv[1], 0); else - return git_config_set(argv[0], NULL); + return git_config_set_in_file_gently(given_config_source.file, + argv[0], NULL); } else if (actions == ACTION_UNSET_ALL) { + check_write(); check_argc(argc, 1, 2); - return git_config_set_multivar(argv[0], NULL, argv[1], 1); + return git_config_set_multivar_in_file_gently(given_config_source.file, + argv[0], NULL, argv[1], 1); } else if (actions == ACTION_RENAME_SECTION) { int ret; + check_write(); check_argc(argc, 2, 2); - ret = git_config_rename_section(argv[0], argv[1]); + ret = git_config_rename_section_in_file(given_config_source.file, + argv[0], argv[1]); if (ret < 0) return ret; if (ret == 0) @@ -500,27 +698,25 @@ int cmd_config(int argc, const char **argv, const char *prefix) } else if (actions == ACTION_REMOVE_SECTION) { int ret; + check_write(); check_argc(argc, 1, 1); - ret = git_config_rename_section(argv[0], NULL); + ret = git_config_rename_section_in_file(given_config_source.file, + argv[0], NULL); if (ret < 0) return ret; if (ret == 0) die("No such section!"); } else if (actions == ACTION_GET_COLOR) { - get_color(argv[0]); + check_argc(argc, 1, 2); + get_color(argv[0], argv[1]); } else if (actions == ACTION_GET_COLORBOOL) { - if (argc == 1) - color_stdout_is_tty = git_config_bool("command line", argv[0]); - return get_colorbool(argc != 0); + check_argc(argc, 1, 2); + if (argc == 2) + color_stdout_is_tty = git_config_bool("command line", argv[1]); + return get_colorbool(argv[0], argc == 2); } return 0; } - -int cmd_repo_config(int argc, const char **argv, const char *prefix) -{ - fprintf(stderr, "WARNING: git repo-config is deprecated in favor of git config.\n"); - return cmd_config(argc, argv, prefix); -} diff --git a/builtin/count-objects.c b/builtin/count-objects.c index c37cb98c31..ba9291944f 100644 --- a/builtin/count-objects.c +++ b/builtin/count-objects.c @@ -9,77 +9,82 @@ #include "builtin.h" #include "parse-options.h" -static void count_objects(DIR *d, char *path, int len, int verbose, - unsigned long *loose, - off_t *loose_size, - unsigned long *packed_loose, - unsigned long *garbage) +static unsigned long garbage; +static off_t size_garbage; +static int verbose; +static unsigned long loose, packed, packed_loose; +static off_t loose_size; + +static const char *bits_to_msg(unsigned seen_bits) { - struct dirent *ent; - while ((ent = readdir(d)) != NULL) { - char hex[41]; - unsigned char sha1[20]; - const char *cp; - int bad = 0; - - if (is_dot_or_dotdot(ent->d_name)) - continue; - for (cp = ent->d_name; *cp; cp++) { - int ch = *cp; - if (('0' <= ch && ch <= '9') || - ('a' <= ch && ch <= 'f')) - continue; - bad = 1; - break; - } - if (cp - ent->d_name != 38) - bad = 1; - else { - struct stat st; - memcpy(path + len + 3, ent->d_name, 38); - path[len + 2] = '/'; - path[len + 41] = 0; - if (lstat(path, &st) || !S_ISREG(st.st_mode)) - bad = 1; - else - (*loose_size) += xsize_t(on_disk_bytes(st)); - } - if (bad) { - if (verbose) { - error("garbage found: %.*s/%s", - len + 2, path, ent->d_name); - (*garbage)++; - } - continue; - } - (*loose)++; - if (!verbose) - continue; - memcpy(hex, path+len, 2); - memcpy(hex+2, ent->d_name, 38); - hex[40] = 0; - if (get_sha1_hex(hex, sha1)) - die("internal error"); - if (has_sha1_pack(sha1)) - (*packed_loose)++; + switch (seen_bits) { + case 0: + return "no corresponding .idx or .pack"; + case PACKDIR_FILE_GARBAGE: + return "garbage found"; + case PACKDIR_FILE_PACK: + return "no corresponding .idx"; + case PACKDIR_FILE_IDX: + return "no corresponding .pack"; + case PACKDIR_FILE_PACK|PACKDIR_FILE_IDX: + default: + return NULL; } } +static void real_report_garbage(unsigned seen_bits, const char *path) +{ + struct stat st; + const char *desc = bits_to_msg(seen_bits); + + if (!desc) + return; + + if (!stat(path, &st)) + size_garbage += st.st_size; + warning("%s: %s", desc, path); + garbage++; +} + +static void loose_garbage(const char *path) +{ + if (verbose) + report_garbage(PACKDIR_FILE_GARBAGE, path); +} + +static int count_loose(const unsigned char *sha1, const char *path, void *data) +{ + struct stat st; + + if (lstat(path, &st) || !S_ISREG(st.st_mode)) + loose_garbage(path); + else { + loose_size += on_disk_bytes(st); + loose++; + if (verbose && has_sha1_pack(sha1)) + packed_loose++; + } + return 0; +} + +static int count_cruft(const char *basename, const char *path, void *data) +{ + loose_garbage(path); + return 0; +} + static char const * const count_objects_usage[] = { - "git count-objects [-v]", + N_("git count-objects [-v] [-H | --human-readable]"), NULL }; int cmd_count_objects(int argc, const char **argv, const char *prefix) { - int i, verbose = 0; - const char *objdir = get_object_directory(); - int len = strlen(objdir); - char *path = xmalloc(len + 50); - unsigned long loose = 0, packed = 0, packed_loose = 0, garbage = 0; - off_t loose_size = 0; + int human_readable = 0; struct option opts[] = { - OPT__VERBOSE(&verbose, "be verbose"), + OPT__VERBOSE(&verbose, N_("be verbose")), + OPT_BOOL('H', "human-readable", &human_readable, + N_("print sizes in human readable format")), OPT_END(), }; @@ -87,23 +92,21 @@ int cmd_count_objects(int argc, const char **argv, const char *prefix) /* we do not take arguments other than flags for now */ if (argc) usage_with_options(count_objects_usage, opts); - memcpy(path, objdir, len); - if (len && objdir[len-1] != '/') - path[len++] = '/'; - for (i = 0; i < 256; i++) { - DIR *d; - sprintf(path + len, "%02x", i); - d = opendir(path); - if (!d) - continue; - count_objects(d, path, len, verbose, - &loose, &loose_size, &packed_loose, &garbage); - closedir(d); + if (verbose) { + report_garbage = real_report_garbage; + report_linked_checkout_garbage(); } + + for_each_loose_file_in_objdir(get_object_directory(), + count_loose, count_cruft, NULL, NULL); + if (verbose) { struct packed_git *p; unsigned long num_pack = 0; off_t size_pack = 0; + struct strbuf loose_buf = STRBUF_INIT; + struct strbuf pack_buf = STRBUF_INIT; + struct strbuf garbage_buf = STRBUF_INIT; if (!packed_git) prepare_packed_git(); for (p = packed_git; p; p = p->next) { @@ -115,16 +118,40 @@ int cmd_count_objects(int argc, const char **argv, const char *prefix) size_pack += p->pack_size + p->index_size; num_pack++; } + + if (human_readable) { + strbuf_humanise_bytes(&loose_buf, loose_size); + strbuf_humanise_bytes(&pack_buf, size_pack); + strbuf_humanise_bytes(&garbage_buf, size_garbage); + } else { + strbuf_addf(&loose_buf, "%lu", + (unsigned long)(loose_size / 1024)); + strbuf_addf(&pack_buf, "%lu", + (unsigned long)(size_pack / 1024)); + strbuf_addf(&garbage_buf, "%lu", + (unsigned long)(size_garbage / 1024)); + } + printf("count: %lu\n", loose); - printf("size: %lu\n", (unsigned long) (loose_size / 1024)); + printf("size: %s\n", loose_buf.buf); printf("in-pack: %lu\n", packed); printf("packs: %lu\n", num_pack); - printf("size-pack: %lu\n", (unsigned long) (size_pack / 1024)); + printf("size-pack: %s\n", pack_buf.buf); printf("prune-packable: %lu\n", packed_loose); printf("garbage: %lu\n", garbage); + printf("size-garbage: %s\n", garbage_buf.buf); + strbuf_release(&loose_buf); + strbuf_release(&pack_buf); + strbuf_release(&garbage_buf); + } else { + struct strbuf buf = STRBUF_INIT; + if (human_readable) + strbuf_humanise_bytes(&buf, loose_size); + else + strbuf_addf(&buf, "%lu kilobytes", + (unsigned long)(loose_size / 1024)); + printf("%lu objects, %s\n", loose, buf.buf); + strbuf_release(&buf); } - else - printf("%lu objects, %lu kilobytes\n", - loose, (unsigned long) (loose_size / 1024)); return 0; } diff --git a/builtin/credential.c b/builtin/credential.c new file mode 100644 index 0000000000..0412fa00f0 --- /dev/null +++ b/builtin/credential.c @@ -0,0 +1,31 @@ +#include "git-compat-util.h" +#include "credential.h" +#include "builtin.h" + +static const char usage_msg[] = + "git credential [fill|approve|reject]"; + +int cmd_credential(int argc, const char **argv, const char *prefix) +{ + const char *op; + struct credential c = CREDENTIAL_INIT; + + op = argv[1]; + if (!op) + usage(usage_msg); + + if (credential_read(&c, stdin) < 0) + die("unable to read credential from stdin"); + + if (!strcmp(op, "fill")) { + credential_fill(&c); + credential_write(&c, stdout); + } else if (!strcmp(op, "approve")) { + credential_approve(&c); + } else if (!strcmp(op, "reject")) { + credential_reject(&c); + } else { + usage(usage_msg); + } + return 0; +} diff --git a/builtin/describe.c b/builtin/describe.c index 9f63067f50..8a25abe0a0 100644 --- a/builtin/describe.c +++ b/builtin/describe.c @@ -1,4 +1,5 @@ #include "cache.h" +#include "lockfile.h" #include "commit.h" #include "tag.h" #include "refs.h" @@ -6,14 +7,15 @@ #include "exec_cmd.h" #include "parse-options.h" #include "diff.h" -#include "hash.h" +#include "hashmap.h" +#include "argv-array.h" -#define SEEN (1u<<0) +#define SEEN (1u << 0) #define MAX_TAGS (FLAG_BITS - 1) static const char * const describe_usage[] = { - "git describe [options] <committish>*", - "git describe [options] --dirty", + N_("git describe [<options>] [<commit-ish>...]"), + N_("git describe [<options>] --dirty"), NULL }; @@ -21,9 +23,10 @@ static int debug; /* Display lots of verbose info */ static int all; /* Any valid ref can be used */ static int tags; /* Allow lightweight tags */ static int longformat; +static int first_parent; static int abbrev = -1; /* unspecified */ static int max_candidates = 10; -static struct hash_table names; +static struct hashmap names; static int have_util; static const char *pattern; static int always; @@ -34,44 +37,29 @@ static const char *diff_index_args[] = { "diff-index", "--quiet", "HEAD", "--", NULL }; - struct commit_name { - struct commit_name *next; + struct hashmap_entry entry; unsigned char peeled[20]; struct tag *tag; unsigned prio:2; /* annotated tag = 2, tag = 1, head = 0 */ unsigned name_checked:1; unsigned char sha1[20]; - const char *path; + char *path; }; + static const char *prio_names[] = { "head", "lightweight", "annotated", }; -static inline unsigned int hash_sha1(const unsigned char *sha1) +static int commit_name_cmp(const struct commit_name *cn1, + const struct commit_name *cn2, const void *peeled) { - unsigned int hash; - memcpy(&hash, sha1, sizeof(hash)); - return hash; + return hashcmp(cn1->peeled, peeled ? peeled : cn2->peeled); } static inline struct commit_name *find_commit_name(const unsigned char *peeled) { - struct commit_name *n = lookup_hash(hash_sha1(peeled), &names); - while (n && !!hashcmp(peeled, n->peeled)) - n = n->next; - return n; -} - -static int set_util(void *chain, void *data) -{ - struct commit_name *n; - for (n = chain; n; n = n->next) { - struct commit *c = lookup_commit_reference_gently(n->peeled, 1); - if (c) - c->util = n; - } - return 0; + return hashmap_get_from_hash(&names, sha1hash(peeled), peeled); } static int replace_name(struct commit_name *e, @@ -116,62 +104,57 @@ static void add_to_known_names(const char *path, struct tag *tag = NULL; if (replace_name(e, prio, sha1, &tag)) { if (!e) { - void **pos; e = xmalloc(sizeof(struct commit_name)); hashcpy(e->peeled, peeled); - pos = insert_hash(hash_sha1(peeled), e, &names); - if (pos) { - e->next = *pos; - *pos = e; - } else { - e->next = NULL; - } + hashmap_entry_init(e, sha1hash(peeled)); + hashmap_add(&names, e); + e->path = NULL; } e->tag = tag; e->prio = prio; e->name_checked = 0; hashcpy(e->sha1, sha1); - e->path = path; + free(e->path); + e->path = xstrdup(path); } } -static int get_name(const char *path, const unsigned char *sha1, int flag, void *cb_data) +static int get_name(const char *path, const struct object_id *oid, int flag, void *cb_data) { - int might_be_tag = !prefixcmp(path, "refs/tags/"); - unsigned char peeled[20]; - int is_tag, prio; + int is_tag = starts_with(path, "refs/tags/"); + struct object_id peeled; + int is_annotated, prio; + + /* Reject anything outside refs/tags/ unless --all */ + if (!all && !is_tag) + return 0; - if (!all && !might_be_tag) + /* Accept only tags that match the pattern, if given */ + if (pattern && (!is_tag || wildmatch(pattern, path + 10, 0, NULL))) return 0; - if (!peel_ref(path, peeled) && !is_null_sha1(peeled)) { - is_tag = !!hashcmp(sha1, peeled); + /* Is it annotated? */ + if (!peel_ref(path, peeled.hash)) { + is_annotated = !!oidcmp(oid, &peeled); } else { - hashcpy(peeled, sha1); - is_tag = 0; + oidcpy(&peeled, oid); + is_annotated = 0; } - /* If --all, then any refs are used. - * If --tags, then any tags are used. - * Otherwise only annotated tags are used. + /* + * By default, we only use annotated tags, but with --tags + * we fall back to lightweight ones (even without --tags, + * we still remember lightweight ones, only to give hints + * in an error message). --all allows any refs to be used. */ - if (might_be_tag) { - if (is_tag) - prio = 2; - else - prio = 1; - - if (pattern && fnmatch(pattern, path + 10, 0)) - prio = 0; - } + if (is_annotated) + prio = 2; + else if (is_tag) + prio = 1; else prio = 0; - if (!all) { - if (!prio) - return 0; - } - add_to_known_names(all ? path + 5 : path + 10, peeled, prio, sha1); + add_to_known_names(all ? path + 5 : path + 10, peeled.hash, prio, oid->hash); return 0; } @@ -269,14 +252,14 @@ static void describe(const char *arg, int last_one) if (!cmit) die(_("%s is not a valid '%s' object"), arg, commit_type); - n = find_commit_name(cmit->object.sha1); + n = find_commit_name(cmit->object.oid.hash); if (n && (tags || all || n->prio == 2)) { /* * Exact match to an existing ref. */ display_name(n); if (longformat) - show_suffix(0, n->tag ? n->tag->tagged->sha1 : sha1); + show_suffix(0, n->tag ? n->tag->tagged->oid.hash : sha1); if (dirty) printf("%s", dirty); printf("\n"); @@ -284,12 +267,19 @@ static void describe(const char *arg, int last_one) } if (!max_candidates) - die(_("no tag exactly matches '%s'"), sha1_to_hex(cmit->object.sha1)); + die(_("no tag exactly matches '%s'"), oid_to_hex(&cmit->object.oid)); if (debug) fprintf(stderr, _("searching to describe %s\n"), arg); if (!have_util) { - for_each_hash(&names, set_util, NULL); + struct hashmap_iter iter; + struct commit *c; + struct commit_name *n = hashmap_iter_first(&names, &iter); + for (; n; n = hashmap_iter_next(&iter)) { + c = lookup_commit_reference_gently(n->peeled, 1); + if (c) + c->util = n; + } have_util = 1; } @@ -327,7 +317,7 @@ static void describe(const char *arg, int last_one) if (annotated_cnt && !list) { if (debug) fprintf(stderr, _("finished search at %s\n"), - sha1_to_hex(c->object.sha1)); + oid_to_hex(&c->object.oid)); break; } while (parents) { @@ -337,13 +327,16 @@ static void describe(const char *arg, int last_one) commit_list_insert_by_date(p, &list); p->object.flags |= c->object.flags; parents = parents->next; + + if (first_parent) + break; } } if (!match_cnt) { - const unsigned char *sha1 = cmit->object.sha1; + struct object_id *oid = &cmit->object.oid; if (always) { - printf("%s", find_unique_abbrev(sha1, abbrev)); + printf("%s", find_unique_abbrev(oid->hash, abbrev)); if (dirty) printf("%s", dirty); printf("\n"); @@ -352,11 +345,11 @@ static void describe(const char *arg, int last_one) if (unannotated_cnt) die(_("No annotated tags can describe '%s'.\n" "However, there were unannotated tags: try --tags."), - sha1_to_hex(sha1)); + oid_to_hex(oid)); else die(_("No tags can describe '%s'.\n" "Try --always, or create some tags."), - sha1_to_hex(sha1)); + oid_to_hex(oid)); } qsort(all_matches, match_cnt, sizeof(all_matches[0]), compare_pt); @@ -381,13 +374,13 @@ static void describe(const char *arg, int last_one) _("more than %i tags found; listed %i most recent\n" "gave up search at %s\n"), max_candidates, max_candidates, - sha1_to_hex(gave_up_on->object.sha1)); + oid_to_hex(&gave_up_on->object.oid)); } } display_name(all_matches[0].name); if (abbrev) - show_suffix(all_matches[0].depth, cmit->object.sha1); + show_suffix(all_matches[0].depth, cmit->object.oid.hash); if (dirty) printf("%s", dirty); printf("\n"); @@ -400,23 +393,24 @@ int cmd_describe(int argc, const char **argv, const char *prefix) { int contains = 0; struct option options[] = { - OPT_BOOLEAN(0, "contains", &contains, "find the tag that comes after the commit"), - OPT_BOOLEAN(0, "debug", &debug, "debug search strategy on stderr"), - OPT_BOOLEAN(0, "all", &all, "use any ref in .git/refs"), - OPT_BOOLEAN(0, "tags", &tags, "use any tag in .git/refs/tags"), - OPT_BOOLEAN(0, "long", &longformat, "always use long format"), + OPT_BOOL(0, "contains", &contains, N_("find the tag that comes after the commit")), + OPT_BOOL(0, "debug", &debug, N_("debug search strategy on stderr")), + OPT_BOOL(0, "all", &all, N_("use any ref")), + OPT_BOOL(0, "tags", &tags, N_("use any tag, even unannotated")), + OPT_BOOL(0, "long", &longformat, N_("always use long format")), + OPT_BOOL(0, "first-parent", &first_parent, N_("only follow first parent")), OPT__ABBREV(&abbrev), OPT_SET_INT(0, "exact-match", &max_candidates, - "only output exact matches", 0), + N_("only output exact matches"), 0), OPT_INTEGER(0, "candidates", &max_candidates, - "consider <n> most recent tags (default: 10)"), - OPT_STRING(0, "match", &pattern, "pattern", - "only consider tags matching <pattern>"), - OPT_BOOLEAN(0, "always", &always, - "show abbreviated commit object as fallback"), - {OPTION_STRING, 0, "dirty", &dirty, "mark", - "append <mark> on dirty working tree (default: \"-dirty\")", - PARSE_OPT_OPTARG, NULL, (intptr_t) "-dirty"}, + N_("consider <n> most recent tags (default: 10)")), + OPT_STRING(0, "match", &pattern, N_("pattern"), + N_("only consider tags matching <pattern>")), + OPT_BOOL(0, "always", &always, + N_("show abbreviated commit object as fallback")), + {OPTION_STRING, 0, "dirty", &dirty, N_("mark"), + N_("append <mark> on dirty working tree (default: \"-dirty\")"), + PARSE_OPT_OPTARG, NULL, (intptr_t) "-dirty"}, OPT_END(), }; @@ -436,29 +430,29 @@ int cmd_describe(int argc, const char **argv, const char *prefix) die(_("--long is incompatible with --abbrev=0")); if (contains) { - const char **args = xmalloc((7 + argc) * sizeof(char *)); - int i = 0; - args[i++] = "name-rev"; - args[i++] = "--name-only"; - args[i++] = "--no-undefined"; + struct argv_array args; + + argv_array_init(&args); + argv_array_pushl(&args, "name-rev", + "--peel-tag", "--name-only", "--no-undefined", + NULL); if (always) - args[i++] = "--always"; + argv_array_push(&args, "--always"); if (!all) { - args[i++] = "--tags"; - if (pattern) { - char *s = xmalloc(strlen("--refs=refs/tags/") + strlen(pattern) + 1); - sprintf(s, "--refs=refs/tags/%s", pattern); - args[i++] = s; - } + argv_array_push(&args, "--tags"); + if (pattern) + argv_array_pushf(&args, "--refs=refs/tags/%s", pattern); } - memcpy(args + i, argv, argc * sizeof(char *)); - args[i + argc] = NULL; - return cmd_name_rev(i + argc, args, prefix); + if (argc) + argv_array_pushv(&args, argv); + else + argv_array_push(&args, "HEAD"); + return cmd_name_rev(args.argc, args.argv, prefix); } - init_hash(&names); + hashmap_init(&names, (hashmap_cmp_fn) commit_name_cmp, 0); for_each_rawref(get_name, NULL); - if (!names.nr && !always) + if (!names.size && !always) die(_("No names found, cannot describe anything.")); if (argc == 0) { @@ -479,11 +473,10 @@ int cmd_describe(int argc, const char **argv, const char *prefix) } describe("HEAD", 1); } else if (dirty) { - die(_("--dirty is incompatible with committishes")); + die(_("--dirty is incompatible with commit-ishes")); } else { - while (argc-- > 0) { + while (argc-- > 0) describe(*argv++, argc == 0); - } } return 0; } diff --git a/builtin/diff-files.c b/builtin/diff-files.c index 46085f862f..15c61fd8d1 100644 --- a/builtin/diff-files.c +++ b/builtin/diff-files.c @@ -11,7 +11,7 @@ #include "submodule.h" static const char diff_files_usage[] = -"git diff-files [-q] [-0/-1/2/3 |-c|--cc] [<common diff options>] [<path>...]" +"git diff-files [-q] [-0 | -1 | -2 | -3 | -c | --cc] [<common-diff-options>] [<path>...]" COMMON_DIFF_OPTIONS_HELP; int cmd_diff_files(int argc, const char **argv, const char *prefix) @@ -24,6 +24,7 @@ int cmd_diff_files(int argc, const char **argv, const char *prefix) gitmodules_config(); git_config(git_diff_basic_config, NULL); /* no "diff" UI options */ rev.abbrev = 0; + precompose_argv(argc, argv); argc = setup_revisions(argc, argv, &rev, NULL); while (1 < argc && argv[1][0] == '-') { @@ -61,7 +62,7 @@ int cmd_diff_files(int argc, const char **argv, const char *prefix) (rev.diffopt.output_format & DIFF_FORMAT_PATCH)) rev.combine_merges = rev.dense_combined_merges = 1; - if (read_cache_preload(rev.diffopt.pathspec.raw) < 0) { + if (read_cache_preload(&rev.diffopt.pathspec) < 0) { perror("read_cache_preload"); return -1; } diff --git a/builtin/diff-index.c b/builtin/diff-index.c index 2eb32bd9da..1af373d002 100644 --- a/builtin/diff-index.c +++ b/builtin/diff-index.c @@ -7,7 +7,7 @@ static const char diff_cache_usage[] = "git diff-index [-m] [--cached] " -"[<common diff options>] <tree-ish> [<path>...]" +"[<common-diff-options>] <tree-ish> [<path>...]" COMMON_DIFF_OPTIONS_HELP; int cmd_diff_index(int argc, const char **argv, const char *prefix) @@ -21,6 +21,7 @@ int cmd_diff_index(int argc, const char **argv, const char *prefix) gitmodules_config(); git_config(git_diff_basic_config, NULL); /* no "diff" UI options */ rev.abbrev = 0; + precompose_argv(argc, argv); argc = setup_revisions(argc, argv, &rev, NULL); for (i = 1; i < argc; i++) { @@ -41,9 +42,13 @@ int cmd_diff_index(int argc, const char **argv, const char *prefix) if (rev.pending.nr != 1 || rev.max_count != -1 || rev.min_age != -1 || rev.max_age != -1) usage(diff_cache_usage); - if (!cached) + if (!cached) { setup_work_tree(); - if (read_cache() < 0) { + if (read_cache_preload(&rev.diffopt.pathspec) < 0) { + perror("read_cache_preload"); + return -1; + } + } else if (read_cache() < 0) { perror("read_cache"); return -1; } diff --git a/builtin/diff-tree.c b/builtin/diff-tree.c index be6417d166..806dd7a885 100644 --- a/builtin/diff-tree.c +++ b/builtin/diff-tree.c @@ -22,14 +22,10 @@ static int stdin_diff_commit(struct commit *commit, char *line, int len) if (isspace(line[40]) && !get_sha1_hex(line+41, sha1)) { /* Graft the fake parents locally to the commit */ int pos = 41; - struct commit_list **pptr, *parents; + struct commit_list **pptr; /* Free the real parent list */ - for (parents = commit->parents; parents; ) { - struct commit_list *tmp = parents->next; - free(parents); - parents = tmp; - } + free_commit_list(commit->parents); commit->parents = NULL; pptr = &(commit->parents); while (line[pos] && !get_sha1_hex(line + pos, sha1)) { @@ -53,9 +49,9 @@ static int stdin_diff_trees(struct tree *tree1, char *line, int len) tree2 = lookup_tree(sha1); if (!tree2 || parse_tree(tree2)) return -1; - printf("%s %s\n", sha1_to_hex(tree1->object.sha1), - sha1_to_hex(tree2->object.sha1)); - diff_tree_sha1(tree1->object.sha1, tree2->object.sha1, + printf("%s %s\n", oid_to_hex(&tree1->object.oid), + oid_to_hex(&tree2->object.oid)); + diff_tree_sha1(tree1->object.oid.hash, tree2->object.oid.hash, "", &log_tree_opt.diffopt); log_tree_diff_flush(&log_tree_opt); return 0; @@ -72,9 +68,7 @@ static int diff_tree_stdin(char *line) line[len-1] = 0; if (get_sha1_hex(line, sha1)) return -1; - obj = lookup_unknown_object(sha1); - if (!obj || !obj->parsed) - obj = parse_object(sha1); + obj = parse_object(sha1); if (!obj) return -1; if (obj->type == OBJ_COMMIT) @@ -88,7 +82,7 @@ static int diff_tree_stdin(char *line) static const char diff_tree_usage[] = "git diff-tree [--stdin] [-m] [-c] [--cc] [-s] [-v] [--pretty] [-t] [-r] [--root] " -"[<common diff options>] <tree-ish> [<tree-ish>] [<path>...]\n" +"[<common-diff-options>] <tree-ish> [<tree-ish>] [<path>...]\n" " -r diff recursively\n" " --root include the initial commit as diff against /dev/null\n" COMMON_DIFF_OPTIONS_HELP; @@ -120,6 +114,8 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix) opt->disable_stdin = 1; memset(&s_r_opt, 0, sizeof(s_r_opt)); s_r_opt.tweak = diff_tree_tweak_rev; + + precompose_argv(argc, argv); argc = setup_revisions(argc, argv, opt, &s_r_opt); while (--argc > 0) { @@ -145,7 +141,7 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix) break; case 1: tree1 = opt->pending.objects[0].item; - diff_tree_commit_sha1(tree1->sha1); + diff_tree_commit_sha1(tree1->oid.hash); break; case 2: tree1 = opt->pending.objects[0].item; @@ -155,8 +151,8 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix) tree2 = tree1; tree1 = tmp; } - diff_tree_sha1(tree1->sha1, - tree2->sha1, + diff_tree_sha1(tree1->oid.hash, + tree2->oid.hash, "", &opt->diffopt); log_tree_diff_flush(opt); break; diff --git a/builtin/diff.c b/builtin/diff.c index 0fe638fc45..b7a9405d9f 100644 --- a/builtin/diff.c +++ b/builtin/diff.c @@ -4,6 +4,7 @@ * Copyright (c) 2006 Junio C Hamano */ #include "cache.h" +#include "lockfile.h" #include "color.h" #include "commit.h" #include "blob.h" @@ -14,6 +15,10 @@ #include "log-tree.h" #include "builtin.h" #include "submodule.h" +#include "sha1-array.h" + +#define DIFF_NO_INDEX_EXPLICIT 1 +#define DIFF_NO_INDEX_IMPLICIT 2 struct blobinfo { unsigned char sha1[20]; @@ -28,6 +33,8 @@ static void stuff_change(struct diff_options *opt, unsigned old_mode, unsigned new_mode, const unsigned char *old_sha1, const unsigned char *new_sha1, + int old_sha1_valid, + int new_sha1_valid, const char *old_name, const char *new_name) { @@ -53,23 +60,26 @@ static void stuff_change(struct diff_options *opt, one = alloc_filespec(old_name); two = alloc_filespec(new_name); - fill_filespec(one, old_sha1, old_mode); - fill_filespec(two, new_sha1, new_mode); + fill_filespec(one, old_sha1, old_sha1_valid, old_mode); + fill_filespec(two, new_sha1, new_sha1_valid, new_mode); diff_queue(&diff_queued_diff, one, two); } static int builtin_diff_b_f(struct rev_info *revs, int argc, const char **argv, - struct blobinfo *blob, - const char *path) + struct blobinfo *blob) { /* Blob vs file in the working tree*/ struct stat st; + const char *path; if (argc > 1) usage(builtin_diff_usage); + GUARD_PATHSPEC(&revs->prune_data, PATHSPEC_FROMTOP | PATHSPEC_LITERAL); + path = revs->prune_data.items[0].match; + if (lstat(path, &st)) die_errno(_("failed to stat '%s'"), path); if (!(S_ISREG(st.st_mode) || S_ISLNK(st.st_mode))) @@ -83,6 +93,7 @@ static int builtin_diff_b_f(struct rev_info *revs, stuff_change(&revs->diffopt, blob[0].mode, canon_mode(st.st_mode), blob[0].sha1, null_sha1, + 1, 0, path, path); diffcore_std(&revs->diffopt); diff_flush(&revs->diffopt); @@ -107,6 +118,7 @@ static int builtin_diff_blobs(struct rev_info *revs, stuff_change(&revs->diffopt, blob[0].mode, blob[1].mode, blob[0].sha1, blob[1].sha1, + 1, 1, blob[0].name, blob[1].name); diffcore_std(&revs->diffopt); diff_flush(&revs->diffopt); @@ -125,8 +137,6 @@ static int builtin_diff_index(struct rev_info *revs, usage(builtin_diff_usage); argv++; argc--; } - if (!cached) - setup_work_tree(); /* * Make sure there is one revision (i.e. pending object), * and there is no revision filtering parameters. @@ -135,8 +145,14 @@ static int builtin_diff_index(struct rev_info *revs, revs->max_count != -1 || revs->min_age != -1 || revs->max_age != -1) usage(builtin_diff_usage); - if (read_cache_preload(revs->diffopt.pathspec.raw) < 0) { - perror("read_cache_preload"); + if (!cached) { + setup_work_tree(); + if (read_cache_preload(&revs->diffopt.pathspec) < 0) { + perror("read_cache_preload"); + return -1; + } + } else if (read_cache() < 0) { + perror("read_cache"); return -1; } return run_diff_index(revs, cached); @@ -144,7 +160,8 @@ static int builtin_diff_index(struct rev_info *revs, static int builtin_diff_tree(struct rev_info *revs, int argc, const char **argv, - struct object_array_entry *ent) + struct object_array_entry *ent0, + struct object_array_entry *ent1) { const unsigned char *(sha1[2]); int swap = 0; @@ -152,13 +169,14 @@ static int builtin_diff_tree(struct rev_info *revs, if (argc > 1) usage(builtin_diff_usage); - /* We saw two trees, ent[0] and ent[1]. - * if ent[1] is uninteresting, they are swapped + /* + * We saw two trees, ent0 and ent1. If ent1 is uninteresting, + * swap them. */ - if (ent[1].item->flags & UNINTERESTING) + if (ent1->item->flags & UNINTERESTING) swap = 1; - sha1[swap] = ent[0].item->sha1; - sha1[1-swap] = ent[1].item->sha1; + sha1[swap] = ent0->item->oid.hash; + sha1[1 - swap] = ent1->item->oid.hash; diff_tree_sha1(sha1[0], sha1[1], "", &revs->diffopt); log_tree_diff_flush(revs); return 0; @@ -169,7 +187,7 @@ static int builtin_diff_combined(struct rev_info *revs, struct object_array_entry *ent, int ents) { - const unsigned char (*parent)[20]; + struct sha1_array parents = SHA1_ARRAY_INIT; int i; if (argc > 1) @@ -177,12 +195,11 @@ static int builtin_diff_combined(struct rev_info *revs, if (!revs->dense_combined_merges && !revs->combine_merges) revs->dense_combined_merges = revs->combine_merges = 1; - parent = xmalloc(ents * sizeof(*parent)); - for (i = 0; i < ents; i++) - hashcpy((unsigned char *)(parent + i), ent[i].item->sha1); - diff_tree_combined(parent[0], parent + 1, ents - 1, + for (i = 1; i < ents; i++) + sha1_array_append(&parents, ent[i].item->oid.hash); + diff_tree_combined(ent[0].item->oid.hash, &parents, revs->dense_combined_merges, revs); - free((void *)parent); + sha1_array_clear(&parents); return 0; } @@ -232,7 +249,7 @@ static int builtin_diff_files(struct rev_info *revs, int argc, const char **argv revs->combine_merges = revs->dense_combined_merges = 1; setup_work_tree(); - if (read_cache_preload(revs->diffopt.pathspec.raw) < 0) { + if (read_cache_preload(&revs->diffopt.pathspec) < 0) { perror("read_cache_preload"); return -1; } @@ -243,11 +260,10 @@ int cmd_diff(int argc, const char **argv, const char *prefix) { int i; struct rev_info rev; - struct object_array_entry ent[100]; - int ents = 0, blobs = 0, paths = 0; - const char *path = NULL; + struct object_array ent = OBJECT_ARRAY_INIT; + int blobs = 0, paths = 0; struct blobinfo blob[2]; - int nongit; + int nongit = 0, no_index = 0; int result = 0; /* @@ -273,18 +289,69 @@ int cmd_diff(int argc, const char **argv, const char *prefix) * Other cases are errors. */ - prefix = setup_git_directory_gently(&nongit); - gitmodules_config(); + /* Were we asked to do --no-index explicitly? */ + for (i = 1; i < argc; i++) { + if (!strcmp(argv[i], "--")) { + i++; + break; + } + if (!strcmp(argv[i], "--no-index")) + no_index = DIFF_NO_INDEX_EXPLICIT; + if (argv[i][0] != '-') + break; + } + + if (!no_index) + prefix = setup_git_directory_gently(&nongit); + + /* + * Treat git diff with at least one path outside of the + * repo the same as if the command would have been executed + * outside of a git repository. In this case it behaves + * the same way as "git diff --no-index <a> <b>", which acts + * as a colourful "diff" replacement. + */ + if (nongit || ((argc == i + 2) && + (!path_inside_repo(prefix, argv[i]) || + !path_inside_repo(prefix, argv[i + 1])))) + no_index = DIFF_NO_INDEX_IMPLICIT; + + if (!no_index) + gitmodules_config(); + init_diff_ui_defaults(); git_config(git_diff_ui_config, NULL); + precompose_argv(argc, argv); init_revisions(&rev, prefix); - /* If this is a no-index diff, just run it and exit there. */ - diff_no_index(&rev, argc, argv, nongit, prefix); + if (no_index && argc != i + 2) { + if (no_index == DIFF_NO_INDEX_IMPLICIT) { + /* + * There was no --no-index and there were not two + * paths. It is possible that the user intended + * to do an inside-repository operation. + */ + fprintf(stderr, "Not a git repository\n"); + fprintf(stderr, + "To compare two paths outside a working tree:\n"); + } + /* Give the usage message for non-repository usage and exit. */ + usagef("git diff %s <path> <path>", + no_index == DIFF_NO_INDEX_EXPLICIT ? + "--no-index" : "[--no-index]"); + + } + if (no_index) + /* If this is a no-index diff, just run it and exit there. */ + diff_no_index(&rev, argc, argv); /* Otherwise, we are doing the usual "git" diff */ rev.diffopt.skip_stat_unmatch = !!diff_auto_refresh_index; + /* Scale to real terminal size and respect statGraphWidth config */ + rev.diffopt.stat_width = -1; + rev.diffopt.stat_graph_width = -1; + /* Default to let external and textconv be used */ DIFF_OPT_SET(&rev.diffopt, ALLOW_EXTERNAL); DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV); @@ -294,19 +361,12 @@ int cmd_diff(int argc, const char **argv, const char *prefix) argc = setup_revisions(argc, argv, &rev, NULL); if (!rev.diffopt.output_format) { rev.diffopt.output_format = DIFF_FORMAT_PATCH; - if (diff_setup_done(&rev.diffopt) < 0) - die(_("diff_setup_done failed")); + diff_setup_done(&rev.diffopt); } DIFF_OPT_SET(&rev.diffopt, RECURSIVE); - /* - * If the user asked for our exit code then don't start a - * pager or we would end up reporting its exit code instead. - */ - if (!DIFF_OPT_TST(&rev.diffopt, EXIT_WITH_STATUS) && - check_pager_config("diff") != 0) - setup_pager(); + setup_diff_pager(&rev.diffopt); /* * Do we have --cached and not have a pending object, then @@ -323,7 +383,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix) add_head_to_pending(&rev); if (!rev.pending.nr) { struct tree *tree; - tree = lookup_tree((const unsigned char*)EMPTY_TREE_SHA1_BIN); + tree = lookup_tree(EMPTY_TREE_SHA1_BIN); add_pending_object(&rev, &tree->object, "HEAD"); } break; @@ -332,49 +392,40 @@ int cmd_diff(int argc, const char **argv, const char *prefix) } for (i = 0; i < rev.pending.nr; i++) { - struct object_array_entry *list = rev.pending.objects+i; - struct object *obj = list->item; - const char *name = list->name; + struct object_array_entry *entry = &rev.pending.objects[i]; + struct object *obj = entry->item; + const char *name = entry->name; int flags = (obj->flags & UNINTERESTING); if (!obj->parsed) - obj = parse_object(obj->sha1); + obj = parse_object(obj->oid.hash); obj = deref_tag(obj, NULL, 0); if (!obj) die(_("invalid object '%s' given."), name); if (obj->type == OBJ_COMMIT) obj = &((struct commit *)obj)->tree->object; + if (obj->type == OBJ_TREE) { - if (ARRAY_SIZE(ent) <= ents) - die(_("more than %d trees given: '%s'"), - (int) ARRAY_SIZE(ent), name); obj->flags |= flags; - ent[ents].item = obj; - ent[ents].name = name; - ents++; - continue; - } - if (obj->type == OBJ_BLOB) { + add_object_array(obj, name, &ent); + } else if (obj->type == OBJ_BLOB) { if (2 <= blobs) die(_("more than two blobs given: '%s'"), name); - hashcpy(blob[blobs].sha1, obj->sha1); + hashcpy(blob[blobs].sha1, obj->oid.hash); blob[blobs].name = name; - blob[blobs].mode = list->mode; + blob[blobs].mode = entry->mode; blobs++; - continue; + } else { + die(_("unhandled object '%s' given."), name); } - die(_("unhandled object '%s' given."), name); } - if (rev.prune_data.nr) { - if (!path) - path = rev.prune_data.items[0].match; + if (rev.prune_data.nr) paths += rev.prune_data.nr; - } /* * Now, do the arguments look reasonable? */ - if (!ents) { + if (!ent.nr) { switch (blobs) { case 0: result = builtin_diff_files(&rev, argc, argv); @@ -382,7 +433,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix) case 1: if (paths != 1) usage(builtin_diff_usage); - result = builtin_diff_b_f(&rev, argc, argv, blob, path); + result = builtin_diff_b_f(&rev, argc, argv, blob); break; case 2: if (paths) @@ -395,23 +446,26 @@ int cmd_diff(int argc, const char **argv, const char *prefix) } else if (blobs) usage(builtin_diff_usage); - else if (ents == 1) + else if (ent.nr == 1) result = builtin_diff_index(&rev, argc, argv); - else if (ents == 2) - result = builtin_diff_tree(&rev, argc, argv, ent); - else if (ent[0].item->flags & UNINTERESTING) { + else if (ent.nr == 2) + result = builtin_diff_tree(&rev, argc, argv, + &ent.objects[0], &ent.objects[1]); + else if (ent.objects[0].item->flags & UNINTERESTING) { /* * diff A...B where there is at least one merge base - * between A and B. We have ent[0] == merge-base, - * ent[ents-2] == A, and ent[ents-1] == B. Show diff - * between the base and B. Note that we pick one - * merge base at random if there are more than one. + * between A and B. We have ent.objects[0] == + * merge-base, ent.objects[ents-2] == A, and + * ent.objects[ents-1] == B. Show diff between the + * base and B. Note that we pick one merge base at + * random if there are more than one. */ - ent[1] = ent[ents-1]; - result = builtin_diff_tree(&rev, argc, argv, ent); + result = builtin_diff_tree(&rev, argc, argv, + &ent.objects[0], + &ent.objects[ent.nr-1]); } else result = builtin_diff_combined(&rev, argc, argv, - ent, ents); + ent.objects, ent.nr); result = diff_result_code(&rev.diffopt, result); if (1 < rev.diffopt.skip_stat_unmatch) refresh_index_quietly(); diff --git a/builtin/fast-export.c b/builtin/fast-export.c index 9836e6b7ca..8164b581a6 100644 --- a/builtin/fast-export.c +++ b/builtin/fast-export.c @@ -5,6 +5,7 @@ */ #include "builtin.h" #include "cache.h" +#include "refs.h" #include "commit.h" #include "object.h" #include "tag.h" @@ -17,19 +18,25 @@ #include "utf8.h" #include "parse-options.h" #include "quote.h" +#include "remote.h" +#include "blob.h" static const char *fast_export_usage[] = { - "git fast-export [rev-list-opts]", + N_("git fast-export [rev-list-opts]"), NULL }; static int progress; -static enum { ABORT, VERBATIM, WARN, STRIP } signed_tag_mode = ABORT; -static enum { ERROR, DROP, REWRITE } tag_of_filtered_mode = ABORT; +static enum { ABORT, VERBATIM, WARN, WARN_STRIP, STRIP } signed_tag_mode = ABORT; +static enum { ERROR, DROP, REWRITE } tag_of_filtered_mode = ERROR; static int fake_missing_tagger; static int use_done_feature; static int no_data; static int full_tree; +static struct string_list extra_refs = STRING_LIST_INIT_NODUP; +static struct refspec *refspecs; +static int refspecs_nr; +static int anonymize; static int parse_opt_signed_tag_mode(const struct option *opt, const char *arg, int unset) @@ -40,10 +47,12 @@ static int parse_opt_signed_tag_mode(const struct option *opt, signed_tag_mode = VERBATIM; else if (!strcmp(arg, "warn")) signed_tag_mode = WARN; + else if (!strcmp(arg, "warn-strip")) + signed_tag_mode = WARN_STRIP; else if (!strcmp(arg, "strip")) signed_tag_mode = STRIP; else - return error("Unknown signed-tag mode: %s", arg); + return error("Unknown signed-tags mode: %s", arg); return 0; } @@ -51,7 +60,7 @@ static int parse_opt_tag_of_filtered_mode(const struct option *opt, const char *arg, int unset) { if (unset || !strcmp(arg, "abort")) - tag_of_filtered_mode = ABORT; + tag_of_filtered_mode = ERROR; else if (!strcmp(arg, "drop")) tag_of_filtered_mode = DROP; else if (!strcmp(arg, "rewrite")) @@ -75,6 +84,76 @@ static int has_unshown_parent(struct commit *commit) return 0; } +struct anonymized_entry { + struct hashmap_entry hash; + const char *orig; + size_t orig_len; + const char *anon; + size_t anon_len; +}; + +static int anonymized_entry_cmp(const void *va, const void *vb, + const void *data) +{ + const struct anonymized_entry *a = va, *b = vb; + return a->orig_len != b->orig_len || + memcmp(a->orig, b->orig, a->orig_len); +} + +/* + * Basically keep a cache of X->Y so that we can repeatedly replace + * the same anonymized string with another. The actual generation + * is farmed out to the generate function. + */ +static const void *anonymize_mem(struct hashmap *map, + void *(*generate)(const void *, size_t *), + const void *orig, size_t *len) +{ + struct anonymized_entry key, *ret; + + if (!map->cmpfn) + hashmap_init(map, anonymized_entry_cmp, 0); + + hashmap_entry_init(&key, memhash(orig, *len)); + key.orig = orig; + key.orig_len = *len; + ret = hashmap_get(map, &key, NULL); + + if (!ret) { + ret = xmalloc(sizeof(*ret)); + hashmap_entry_init(&ret->hash, key.hash.hash); + ret->orig = xstrdup(orig); + ret->orig_len = *len; + ret->anon = generate(orig, len); + ret->anon_len = *len; + hashmap_put(map, ret); + } + + *len = ret->anon_len; + return ret->anon; +} + +/* + * We anonymize each component of a path individually, + * so that paths a/b and a/c will share a common root. + * The paths are cached via anonymize_mem so that repeated + * lookups for "a" will yield the same value. + */ +static void anonymize_path(struct strbuf *out, const char *path, + struct hashmap *map, + void *(*generate)(const void *, size_t *)) +{ + while (*path) { + const char *end_of_component = strchrnul(path, '/'); + size_t len = end_of_component - path; + const char *c = anonymize_mem(map, generate, path, &len); + strbuf_add(out, c, len); + path = end_of_component; + if (*path) + strbuf_addch(out, *path++); + } +} + /* Since intptr_t is C99, we do not use it here */ static inline uint32_t *mark_to_ptr(uint32_t mark) { @@ -113,12 +192,33 @@ static void show_progress(void) printf("progress %d objects\n", counter); } -static void handle_object(const unsigned char *sha1) +/* + * Ideally we would want some transformation of the blob data here + * that is unreversible, but would still be the same size and have + * the same data relationship to other blobs (so that we get the same + * delta and packing behavior as the original). But the first and last + * requirements there are probably mutually exclusive, so let's take + * the easy way out for now, and just generate arbitrary content. + * + * There's no need to cache this result with anonymize_mem, since + * we already handle blob content caching with marks. + */ +static char *anonymize_blob(unsigned long *size) +{ + static int counter; + struct strbuf out = STRBUF_INIT; + strbuf_addf(&out, "anonymous blob %d", counter++); + *size = out.len; + return strbuf_detach(&out, NULL); +} + +static void export_blob(const unsigned char *sha1) { unsigned long size; enum object_type type; char *buf; struct object *object; + int eaten; if (no_data) return; @@ -126,16 +226,25 @@ static void handle_object(const unsigned char *sha1) if (is_null_sha1(sha1)) return; - object = parse_object(sha1); - if (!object) - die ("Could not read blob %s", sha1_to_hex(sha1)); - - if (object->flags & SHOWN) + object = lookup_object(sha1); + if (object && object->flags & SHOWN) return; - buf = read_sha1_file(sha1, &type, &size); - if (!buf) - die ("Could not read blob %s", sha1_to_hex(sha1)); + if (anonymize) { + buf = anonymize_blob(&size); + object = (struct object *)lookup_blob(sha1); + eaten = 0; + } else { + buf = read_sha1_file(sha1, &type, &size); + if (!buf) + die ("Could not read blob %s", sha1_to_hex(sha1)); + if (check_sha1_signature(sha1, buf, size, typename(type)) < 0) + die("sha1 mismatch in blob %s", sha1_to_hex(sha1)); + object = parse_object_buffer(sha1, type, size, buf, &eaten); + } + + if (!object) + die("Could not read blob %s", sha1_to_hex(sha1)); mark_next_object(object); @@ -147,7 +256,8 @@ static void handle_object(const unsigned char *sha1) show_progress(); object->flags |= SHOWN; - free(buf); + if (!eaten) + free(buf); } static int depth_first(const void *a_, const void *b_) @@ -180,15 +290,54 @@ static int depth_first(const void *a_, const void *b_) return (a->status == 'R') - (b->status == 'R'); } -static void print_path(const char *path) +static void print_path_1(const char *path) { int need_quote = quote_c_style(path, NULL, NULL, 0); if (need_quote) quote_c_style(path, NULL, stdout, 0); + else if (strchr(path, ' ')) + printf("\"%s\"", path); else printf("%s", path); } +static void *anonymize_path_component(const void *path, size_t *len) +{ + static int counter; + struct strbuf out = STRBUF_INIT; + strbuf_addf(&out, "path%d", counter++); + return strbuf_detach(&out, len); +} + +static void print_path(const char *path) +{ + if (!anonymize) + print_path_1(path); + else { + static struct hashmap paths; + static struct strbuf anon = STRBUF_INIT; + + anonymize_path(&anon, path, &paths, anonymize_path_component); + print_path_1(anon.buf); + strbuf_reset(&anon); + } +} + +static void *generate_fake_sha1(const void *old, size_t *len) +{ + static uint32_t counter = 1; /* avoid null sha1 */ + unsigned char *out = xcalloc(20, 1); + put_be32(out + 16, counter++); + return out; +} + +static const unsigned char *anonymize_sha1(const unsigned char *sha1) +{ + static struct hashmap sha1s; + size_t len = 20; + return anonymize_mem(&sha1s, generate_fake_sha1, sha1, &len); +} + static void show_filemodify(struct diff_queue_struct *q, struct diff_options *options, void *data) { @@ -233,7 +382,9 @@ static void show_filemodify(struct diff_queue_struct *q, */ if (no_data || S_ISGITLINK(spec->mode)) printf("M %06o %s ", spec->mode, - sha1_to_hex(spec->sha1)); + sha1_to_hex(anonymize ? + anonymize_sha1(spec->sha1) : + spec->sha1)); else { struct object *object = lookup_object(spec->sha1); printf("M %06o :%d ", spec->mode, @@ -267,28 +418,139 @@ static const char *find_encoding(const char *begin, const char *end) return bol; } +static void *anonymize_ref_component(const void *old, size_t *len) +{ + static int counter; + struct strbuf out = STRBUF_INIT; + strbuf_addf(&out, "ref%d", counter++); + return strbuf_detach(&out, len); +} + +static const char *anonymize_refname(const char *refname) +{ + /* + * If any of these prefixes is found, we will leave it intact + * so that tags remain tags and so forth. + */ + static const char *prefixes[] = { + "refs/heads/", + "refs/tags/", + "refs/remotes/", + "refs/" + }; + static struct hashmap refs; + static struct strbuf anon = STRBUF_INIT; + int i; + + /* + * We also leave "master" as a special case, since it does not reveal + * anything interesting. + */ + if (!strcmp(refname, "refs/heads/master")) + return refname; + + strbuf_reset(&anon); + for (i = 0; i < ARRAY_SIZE(prefixes); i++) { + if (skip_prefix(refname, prefixes[i], &refname)) { + strbuf_addstr(&anon, prefixes[i]); + break; + } + } + + anonymize_path(&anon, refname, &refs, anonymize_ref_component); + return anon.buf; +} + +/* + * We do not even bother to cache commit messages, as they are unlikely + * to be repeated verbatim, and it is not that interesting when they are. + */ +static char *anonymize_commit_message(const char *old) +{ + static int counter; + return xstrfmt("subject %d\n\nbody\n", counter++); +} + +static struct hashmap idents; +static void *anonymize_ident(const void *old, size_t *len) +{ + static int counter; + struct strbuf out = STRBUF_INIT; + strbuf_addf(&out, "User %d <user%d@example.com>", counter, counter); + counter++; + return strbuf_detach(&out, len); +} + +/* + * Our strategy here is to anonymize the names and email addresses, + * but keep timestamps intact, as they influence things like traversal + * order (and by themselves should not be too revealing). + */ +static void anonymize_ident_line(const char **beg, const char **end) +{ + static struct strbuf buffers[] = { STRBUF_INIT, STRBUF_INIT }; + static unsigned which_buffer; + + struct strbuf *out; + struct ident_split split; + const char *end_of_header; + + out = &buffers[which_buffer++]; + which_buffer %= ARRAY_SIZE(buffers); + strbuf_reset(out); + + /* skip "committer", "author", "tagger", etc */ + end_of_header = strchr(*beg, ' '); + if (!end_of_header) + die("BUG: malformed line fed to anonymize_ident_line: %.*s", + (int)(*end - *beg), *beg); + end_of_header++; + strbuf_add(out, *beg, end_of_header - *beg); + + if (!split_ident_line(&split, end_of_header, *end - end_of_header) && + split.date_begin) { + const char *ident; + size_t len; + + len = split.mail_end - split.name_begin; + ident = anonymize_mem(&idents, anonymize_ident, + split.name_begin, &len); + strbuf_add(out, ident, len); + strbuf_addch(out, ' '); + strbuf_add(out, split.date_begin, split.tz_end - split.date_begin); + } else { + strbuf_addstr(out, "Malformed Ident <malformed@example.com> 0 -0000"); + } + + *beg = out->buf; + *end = out->buf + out->len; +} + static void handle_commit(struct commit *commit, struct rev_info *rev) { int saved_output_format = rev->diffopt.output_format; + const char *commit_buffer; const char *author, *author_end, *committer, *committer_end; const char *encoding, *message; char *reencoded = NULL; struct commit_list *p; + const char *refname; int i; rev->diffopt.output_format = DIFF_FORMAT_CALLBACK; - parse_commit(commit); - author = strstr(commit->buffer, "\nauthor "); + parse_commit_or_die(commit); + commit_buffer = get_commit_buffer(commit, NULL); + author = strstr(commit_buffer, "\nauthor "); if (!author) die ("Could not find author in commit %s", - sha1_to_hex(commit->object.sha1)); + oid_to_hex(&commit->object.oid)); author++; author_end = strchrnul(author, '\n'); committer = strstr(author_end, "\ncommitter "); if (!committer) die ("Could not find committer in commit %s", - sha1_to_hex(commit->object.sha1)); + oid_to_hex(&commit->object.oid)); committer++; committer_end = strchrnul(committer, '\n'); message = strstr(committer_end, "\n\n"); @@ -299,26 +561,35 @@ static void handle_commit(struct commit *commit, struct rev_info *rev) if (commit->parents && get_object_mark(&commit->parents->item->object) != 0 && !full_tree) { - parse_commit(commit->parents->item); - diff_tree_sha1(commit->parents->item->tree->object.sha1, - commit->tree->object.sha1, "", &rev->diffopt); + parse_commit_or_die(commit->parents->item); + diff_tree_sha1(commit->parents->item->tree->object.oid.hash, + commit->tree->object.oid.hash, "", &rev->diffopt); } else - diff_root_tree_sha1(commit->tree->object.sha1, + diff_root_tree_sha1(commit->tree->object.oid.hash, "", &rev->diffopt); /* Export the referenced blobs, and remember the marks. */ for (i = 0; i < diff_queued_diff.nr; i++) if (!S_ISGITLINK(diff_queued_diff.queue[i]->two->mode)) - handle_object(diff_queued_diff.queue[i]->two->sha1); + export_blob(diff_queued_diff.queue[i]->two->sha1); + + refname = commit->util; + if (anonymize) { + refname = anonymize_refname(refname); + anonymize_ident_line(&committer, &committer_end); + anonymize_ident_line(&author, &author_end); + } mark_next_object(&commit->object); - if (!is_encoding_utf8(encoding)) + if (anonymize) + reencoded = anonymize_commit_message(message); + else if (!is_encoding_utf8(encoding)) reencoded = reencode_string(message, "UTF-8", encoding); if (!commit->parents) - printf("reset %s\n", (const char*)commit->util); + printf("reset %s\n", refname); printf("commit %s\nmark :%"PRIu32"\n%.*s\n%.*s\ndata %u\n%s", - (const char *)commit->util, last_idnum, + refname, last_idnum, (int)(author_end - author), author, (int)(committer_end - committer), committer, (unsigned)(reencoded @@ -326,6 +597,7 @@ static void handle_commit(struct commit *commit, struct rev_info *rev) ? strlen(message) : 0), reencoded ? reencoded : message ? message : ""); free(reencoded); + unuse_commit_buffer(commit, commit_buffer); for (i = 0, p = commit->parents; p; p = p->next) { int mark = get_object_mark(&p->item->object); @@ -348,6 +620,14 @@ static void handle_commit(struct commit *commit, struct rev_info *rev) show_progress(); } +static void *anonymize_tag(const void *old, size_t *len) +{ + static int counter; + struct strbuf out = STRBUF_INIT; + strbuf_addf(&out, "tag message %d", counter++); + return strbuf_detach(&out, len); +} + static void handle_tail(struct object_array *commits, struct rev_info *revs) { struct commit *commit; @@ -371,7 +651,7 @@ static void handle_tag(const char *name, struct tag *tag) int tagged_mark; struct commit *p; - /* Trees have no identifer in fast-export output, thus we have no way + /* Trees have no identifier in fast-export output, thus we have no way * to output tags of trees, tags of tags of trees, etc. Simply omit * such tags. */ @@ -381,13 +661,13 @@ static void handle_tag(const char *name, struct tag *tag) } if (tagged->type == OBJ_TREE) { warning("Omitting tag %s,\nsince tags of trees (or tags of tags of trees, etc.) are not supported.", - sha1_to_hex(tag->object.sha1)); + oid_to_hex(&tag->object.oid)); return; } - buf = read_sha1_file(tag->object.sha1, &type, &size); + buf = read_sha1_file(tag->object.oid.hash, &type, &size); if (!buf) - die ("Could not read tag %s", sha1_to_hex(tag->object.sha1)); + die ("Could not read tag %s", oid_to_hex(&tag->object.oid)); message = memmem(buf, size, "\n\n", 2); if (message) { message += 2; @@ -404,6 +684,17 @@ static void handle_tag(const char *name, struct tag *tag) } else { tagger++; tagger_end = strchrnul(tagger, '\n'); + if (anonymize) + anonymize_ident_line(&tagger, &tagger_end); + } + + if (anonymize) { + name = anonymize_refname(name); + if (message) { + static struct hashmap tags; + message = anonymize_mem(&tags, anonymize_tag, + message, &message_size); + } } /* handle signed tags */ @@ -414,14 +705,18 @@ static void handle_tag(const char *name, struct tag *tag) switch(signed_tag_mode) { case ABORT: die ("Encountered signed tag %s; use " - "--signed-tag=<mode> to handle it.", - sha1_to_hex(tag->object.sha1)); + "--signed-tags=<mode> to handle it.", + oid_to_hex(&tag->object.oid)); case WARN: warning ("Exporting signed tag %s", - sha1_to_hex(tag->object.sha1)); + oid_to_hex(&tag->object.oid)); /* fallthru */ case VERBATIM: break; + case WARN_STRIP: + warning ("Stripping signature from tag %s", + oid_to_hex(&tag->object.oid)); + /* fallthru */ case STRIP: message_size = signature + 1 - message; break; @@ -436,14 +731,14 @@ static void handle_tag(const char *name, struct tag *tag) case ABORT: die ("Tag %s tags unexported object; use " "--tag-of-filtered-object=<mode> to handle it.", - sha1_to_hex(tag->object.sha1)); + oid_to_hex(&tag->object.oid)); case DROP: /* Ignore this tag altogether */ return; case REWRITE: if (tagged->type != OBJ_COMMIT) { die ("Tag %s tags unexported %s!", - sha1_to_hex(tag->object.sha1), + oid_to_hex(&tag->object.oid), typename(tagged->type)); } p = (struct commit *)tagged; @@ -456,14 +751,14 @@ static void handle_tag(const char *name, struct tag *tag) break; if (!p->parents) die ("Can't find replacement commit for tag %s\n", - sha1_to_hex(tag->object.sha1)); + oid_to_hex(&tag->object.oid)); p = p->parents->item; } tagged_mark = get_object_mark(&p->object); } } - if (!prefixcmp(name, "refs/tags/")) + if (starts_with(name, "refs/tags/")) name += 10; printf("tag %s\nfrom :%d\n%.*s%sdata %d\n%.*s\n", name, tagged_mark, @@ -472,76 +767,101 @@ static void handle_tag(const char *name, struct tag *tag) (int)message_size, (int)message_size, message ? message : ""); } -static void get_tags_and_duplicates(struct object_array *pending, - struct string_list *extra_refs) +static struct commit *get_commit(struct rev_cmdline_entry *e, char *full_name) +{ + switch (e->item->type) { + case OBJ_COMMIT: + return (struct commit *)e->item; + case OBJ_TAG: { + struct tag *tag = (struct tag *)e->item; + + /* handle nested tags */ + while (tag && tag->object.type == OBJ_TAG) { + parse_object(tag->object.oid.hash); + string_list_append(&extra_refs, full_name)->util = tag; + tag = (struct tag *)tag->tagged; + } + if (!tag) + die("Tag %s points nowhere?", e->name); + return (struct commit *)tag; + break; + } + default: + return NULL; + } +} + +static void get_tags_and_duplicates(struct rev_cmdline_info *info) { - struct tag *tag; int i; - for (i = 0; i < pending->nr; i++) { - struct object_array_entry *e = pending->objects + i; + for (i = 0; i < info->nr; i++) { + struct rev_cmdline_entry *e = info->rev + i; unsigned char sha1[20]; - struct commit *commit = commit; + struct commit *commit; char *full_name; - if (dwim_ref(e->name, strlen(e->name), sha1, &full_name) != 1) + if (e->flags & UNINTERESTING) continue; - switch (e->item->type) { - case OBJ_COMMIT: - commit = (struct commit *)e->item; - break; - case OBJ_TAG: - tag = (struct tag *)e->item; + if (dwim_ref(e->name, strlen(e->name), sha1, &full_name) != 1) + continue; - /* handle nested tags */ - while (tag && tag->object.type == OBJ_TAG) { - parse_object(tag->object.sha1); - string_list_append(extra_refs, full_name)->util = tag; - tag = (struct tag *)tag->tagged; - } - if (!tag) - die ("Tag %s points nowhere?", e->name); - switch(tag->object.type) { - case OBJ_COMMIT: - commit = (struct commit *)tag; - break; - case OBJ_BLOB: - handle_object(tag->object.sha1); - continue; - default: /* OBJ_TAG (nested tags) is already handled */ - warning("Tag points to object of unexpected type %s, skipping.", - typename(tag->object.type)); - continue; + if (refspecs) { + char *private; + private = apply_refspecs(refspecs, refspecs_nr, full_name); + if (private) { + free(full_name); + full_name = private; } - break; - default: + } + + commit = get_commit(e, full_name); + if (!commit) { warning("%s: Unexpected object of type %s, skipping.", e->name, typename(e->item->type)); continue; } - if (commit->util) - /* more than one name for the same object */ - string_list_append(extra_refs, full_name)->util = commit; - else + + switch(commit->object.type) { + case OBJ_COMMIT: + break; + case OBJ_BLOB: + export_blob(commit->object.oid.hash); + continue; + default: /* OBJ_TAG (nested tags) is already handled */ + warning("Tag points to object of unexpected type %s, skipping.", + typename(commit->object.type)); + continue; + } + + /* + * This ref will not be updated through a commit, lets make + * sure it gets properly updated eventually. + */ + if (commit->util || commit->object.flags & SHOWN) + string_list_append(&extra_refs, full_name)->util = commit; + if (!commit->util) commit->util = full_name; } } -static void handle_tags_and_duplicates(struct string_list *extra_refs) +static void handle_tags_and_duplicates(void) { struct commit *commit; int i; - for (i = extra_refs->nr - 1; i >= 0; i--) { - const char *name = extra_refs->items[i].string; - struct object *object = extra_refs->items[i].util; + for (i = extra_refs.nr - 1; i >= 0; i--) { + const char *name = extra_refs.items[i].string; + struct object *object = extra_refs.items[i].util; switch (object->type) { case OBJ_TAG: handle_tag(name, (struct tag *)object); break; case OBJ_COMMIT: + if (anonymize) + name = anonymize_refname(name); /* create refs pointing to already seen commits */ commit = (struct commit *)object; printf("reset %s\nfrom :%d\n\n", name, @@ -560,7 +880,7 @@ static void export_marks(char *file) FILE *f; int e = 0; - f = fopen(file, "w"); + f = fopen_for_writing(file); if (!f) die_errno("Unable to open marks file %s for writing.", file); @@ -568,7 +888,7 @@ static void export_marks(char *file) if (deco->base && deco->base->type == 1) { mark = ptr_to_mark(deco->decoration); if (fprintf(f, ":%"PRIu32" %s\n", mark, - sha1_to_hex(deco->base->sha1)) < 0) { + oid_to_hex(&deco->base->oid)) < 0) { e = 1; break; } @@ -594,6 +914,8 @@ static void import_marks(char *input_file) char *line_end, *mark_end; unsigned char sha1[20]; struct object *object; + struct commit *commit; + enum object_type type; line_end = strchr(line, '\n'); if (line[0] != ':' || !line_end) @@ -602,54 +924,80 @@ static void import_marks(char *input_file) mark = strtoumax(line + 1, &mark_end, 10); if (!mark || mark_end == line + 1 - || *mark_end != ' ' || get_sha1(mark_end + 1, sha1)) + || *mark_end != ' ' || get_sha1_hex(mark_end + 1, sha1)) die("corrupt mark line: %s", line); - object = parse_object(sha1); - if (!object) - die ("Could not read blob %s", sha1_to_hex(sha1)); + if (last_idnum < mark) + last_idnum = mark; + + type = sha1_object_info(sha1, NULL); + if (type < 0) + die("object not found: %s", sha1_to_hex(sha1)); + + if (type != OBJ_COMMIT) + /* only commits */ + continue; + + commit = lookup_commit(sha1); + if (!commit) + die("not a commit? can't happen: %s", sha1_to_hex(sha1)); + + object = &commit->object; if (object->flags & SHOWN) - error("Object %s already has a mark", sha1); + error("Object %s already has a mark", sha1_to_hex(sha1)); mark_object(object, mark); - if (last_idnum < mark) - last_idnum = mark; object->flags |= SHOWN; } fclose(f); } +static void handle_deletes(void) +{ + int i; + for (i = 0; i < refspecs_nr; i++) { + struct refspec *refspec = &refspecs[i]; + if (*refspec->src) + continue; + + printf("reset %s\nfrom %s\n\n", + refspec->dst, sha1_to_hex(null_sha1)); + } +} + int cmd_fast_export(int argc, const char **argv, const char *prefix) { struct rev_info revs; struct object_array commits = OBJECT_ARRAY_INIT; - struct string_list extra_refs = STRING_LIST_INIT_NODUP; struct commit *commit; char *export_filename = NULL, *import_filename = NULL; + uint32_t lastimportid; + struct string_list refspecs_list = STRING_LIST_INIT_NODUP; struct option options[] = { OPT_INTEGER(0, "progress", &progress, - "show progress after <n> objects"), - OPT_CALLBACK(0, "signed-tags", &signed_tag_mode, "mode", - "select handling of signed tags", + N_("show progress after <n> objects")), + OPT_CALLBACK(0, "signed-tags", &signed_tag_mode, N_("mode"), + N_("select handling of signed tags"), parse_opt_signed_tag_mode), - OPT_CALLBACK(0, "tag-of-filtered-object", &tag_of_filtered_mode, "mode", - "select handling of tags that tag filtered objects", + OPT_CALLBACK(0, "tag-of-filtered-object", &tag_of_filtered_mode, N_("mode"), + N_("select handling of tags that tag filtered objects"), parse_opt_tag_of_filtered_mode), - OPT_STRING(0, "export-marks", &export_filename, "file", - "Dump marks to this file"), - OPT_STRING(0, "import-marks", &import_filename, "file", - "Import marks from this file"), - OPT_BOOLEAN(0, "fake-missing-tagger", &fake_missing_tagger, - "Fake a tagger when tags lack one"), - OPT_BOOLEAN(0, "full-tree", &full_tree, - "Output full tree for each commit"), - OPT_BOOLEAN(0, "use-done-feature", &use_done_feature, - "Use the done feature to terminate the stream"), - { OPTION_NEGBIT, 0, "data", &no_data, NULL, - "Skip output of blob data", - PARSE_OPT_NOARG | PARSE_OPT_NEGHELP, NULL, 1 }, + OPT_STRING(0, "export-marks", &export_filename, N_("file"), + N_("Dump marks to this file")), + OPT_STRING(0, "import-marks", &import_filename, N_("file"), + N_("Import marks from this file")), + OPT_BOOL(0, "fake-missing-tagger", &fake_missing_tagger, + N_("Fake a tagger when tags lack one")), + OPT_BOOL(0, "full-tree", &full_tree, + N_("Output full tree for each commit")), + OPT_BOOL(0, "use-done-feature", &use_done_feature, + N_("Use the done feature to terminate the stream")), + OPT_BOOL(0, "no-data", &no_data, N_("Skip output of blob data")), + OPT_STRING_LIST(0, "refspec", &refspecs_list, N_("refspec"), + N_("Apply refspec to exported refs")), + OPT_BOOL(0, "anonymize", &anonymize, N_("anonymize output")), OPT_END() }; @@ -663,21 +1011,38 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix) revs.topo_order = 1; revs.show_source = 1; revs.rewrite_parents = 1; + argc = parse_options(argc, argv, prefix, options, fast_export_usage, + PARSE_OPT_KEEP_ARGV0 | PARSE_OPT_KEEP_UNKNOWN); argc = setup_revisions(argc, argv, &revs, NULL); - argc = parse_options(argc, argv, prefix, options, fast_export_usage, 0); if (argc > 1) usage_with_options (fast_export_usage, options); + if (refspecs_list.nr) { + const char **refspecs_str; + int i; + + ALLOC_ARRAY(refspecs_str, refspecs_list.nr); + for (i = 0; i < refspecs_list.nr; i++) + refspecs_str[i] = refspecs_list.items[i].string; + + refspecs_nr = refspecs_list.nr; + refspecs = parse_fetch_refspec(refspecs_nr, refspecs_str); + + string_list_clear(&refspecs_list, 1); + free(refspecs_str); + } + if (use_done_feature) printf("feature done\n"); if (import_filename) import_marks(import_filename); + lastimportid = last_idnum; if (import_filename && revs.prune_data.nr) full_tree = 1; - get_tags_and_duplicates(&revs.pending, &extra_refs); + get_tags_and_duplicates(&revs.cmdline); if (prepare_revision_walk(&revs)) die("revision walk setup failed"); @@ -693,13 +1058,16 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix) } } - handle_tags_and_duplicates(&extra_refs); + handle_tags_and_duplicates(); + handle_deletes(); - if (export_filename) + if (export_filename && lastimportid != last_idnum) export_marks(export_filename); if (use_done_feature) printf("done\n"); + free_refspec(refspecs_nr, refspecs); + return 0; } diff --git a/builtin/fetch-pack.c b/builtin/fetch-pack.c index 6207ecd298..bfd0be44a9 100644 --- a/builtin/fetch-pack.c +++ b/builtin/fetch-pack.c @@ -1,1078 +1,221 @@ #include "builtin.h" -#include "refs.h" #include "pkt-line.h" -#include "commit.h" -#include "tag.h" -#include "exec_cmd.h" -#include "pack.h" -#include "sideband.h" #include "fetch-pack.h" #include "remote.h" -#include "run-command.h" -#include "transport.h" - -static int transfer_unpack_limit = -1; -static int fetch_unpack_limit = -1; -static int unpack_limit = 100; -static int prefer_ofs_delta = 1; -static int no_done; -static int fetch_fsck_objects = -1; -static int transfer_fsck_objects = -1; -static struct fetch_pack_args args = { - /* .uploadpack = */ "git-upload-pack", -}; +#include "connect.h" +#include "sha1-array.h" static const char fetch_pack_usage[] = -"git fetch-pack [--all] [--quiet|-q] [--keep|-k] [--thin] [--include-tag] [--upload-pack=<git-upload-pack>] [--depth=<n>] [--no-progress] [-v] [<host>:]<directory> [<refs>...]"; - -#define COMPLETE (1U << 0) -#define COMMON (1U << 1) -#define COMMON_REF (1U << 2) -#define SEEN (1U << 3) -#define POPPED (1U << 4) - -static int marked; - -/* - * After sending this many "have"s if we do not get any new ACK , we - * give up traversing our history. - */ -#define MAX_IN_VAIN 256 - -static struct commit_list *rev_list; -static int non_common_revs, multi_ack, use_sideband; - -static void rev_list_push(struct commit *commit, int mark) -{ - if (!(commit->object.flags & mark)) { - commit->object.flags |= mark; - - if (!(commit->object.parsed)) - if (parse_commit(commit)) - return; - - commit_list_insert_by_date(commit, &rev_list); - - if (!(commit->object.flags & COMMON)) - non_common_revs++; - } -} - -static int rev_list_insert_ref(const char *path, const unsigned char *sha1, int flag, void *cb_data) -{ - struct object *o = deref_tag(parse_object(sha1), path, 0); - - if (o && o->type == OBJ_COMMIT) - rev_list_push((struct commit *)o, SEEN); - - return 0; -} - -static int clear_marks(const char *path, const unsigned char *sha1, int flag, void *cb_data) -{ - struct object *o = deref_tag(parse_object(sha1), path, 0); - - if (o && o->type == OBJ_COMMIT) - clear_commit_marks((struct commit *)o, - COMMON | COMMON_REF | SEEN | POPPED); - return 0; -} - -/* - This function marks a rev and its ancestors as common. - In some cases, it is desirable to mark only the ancestors (for example - when only the server does not yet know that they are common). -*/ - -static void mark_common(struct commit *commit, - int ancestors_only, int dont_parse) -{ - if (commit != NULL && !(commit->object.flags & COMMON)) { - struct object *o = (struct object *)commit; - - if (!ancestors_only) - o->flags |= COMMON; - - if (!(o->flags & SEEN)) - rev_list_push(commit, SEEN); - else { - struct commit_list *parents; +"git fetch-pack [--all] [--stdin] [--quiet | -q] [--keep | -k] [--thin] " +"[--include-tag] [--upload-pack=<git-upload-pack>] [--depth=<n>] " +"[--no-progress] [--diag-url] [-v] [<host>:]<directory> [<refs>...]"; - if (!ancestors_only && !(o->flags & POPPED)) - non_common_revs--; - if (!o->parsed && !dont_parse) - if (parse_commit(commit)) - return; - - for (parents = commit->parents; - parents; - parents = parents->next) - mark_common(parents->item, 0, dont_parse); - } - } -} - -/* - Get the next rev to send, ignoring the common. -*/ - -static const unsigned char *get_rev(void) +static void add_sought_entry(struct ref ***sought, int *nr, int *alloc, + const char *name) { - struct commit *commit = NULL; - - while (commit == NULL) { - unsigned int mark; - struct commit_list *parents; - - if (rev_list == NULL || non_common_revs == 0) - return NULL; - - commit = rev_list->item; - if (!commit->object.parsed) - parse_commit(commit); - parents = commit->parents; - - commit->object.flags |= POPPED; - if (!(commit->object.flags & COMMON)) - non_common_revs--; - - if (commit->object.flags & COMMON) { - /* do not send "have", and ignore ancestors */ - commit = NULL; - mark = COMMON | SEEN; - } else if (commit->object.flags & COMMON_REF) - /* send "have", and ignore ancestors */ - mark = COMMON | SEEN; - else - /* send "have", also for its ancestors */ - mark = SEEN; - - while (parents) { - if (!(parents->item->object.flags & SEEN)) - rev_list_push(parents->item, mark); - if (mark & COMMON) - mark_common(parents->item, 1, 0); - parents = parents->next; + struct ref *ref; + struct object_id oid; + + if (!get_oid_hex(name, &oid)) { + if (name[GIT_SHA1_HEXSZ] == ' ') { + /* <sha1> <ref>, find refname */ + name += GIT_SHA1_HEXSZ + 1; + } else if (name[GIT_SHA1_HEXSZ] == '\0') { + ; /* <sha1>, leave sha1 as name */ + } else { + /* <ref>, clear cruft from oid */ + oidclr(&oid); } - - rev_list = rev_list->next; + } else { + /* <ref>, clear cruft from get_oid_hex */ + oidclr(&oid); } - return commit->object.sha1; + ref = alloc_ref(name); + oidcpy(&ref->old_oid, &oid); + (*nr)++; + ALLOC_GROW(*sought, *nr, *alloc); + (*sought)[*nr - 1] = ref; } -enum ack_type { - NAK = 0, - ACK, - ACK_continue, - ACK_common, - ACK_ready -}; - -static void consume_shallow_list(int fd) +int cmd_fetch_pack(int argc, const char **argv, const char *prefix) { - if (args.stateless_rpc && args.depth > 0) { - /* If we sent a depth we will get back "duplicate" - * shallow and unshallow commands every time there - * is a block of have lines exchanged. - */ - char line[1000]; - while (packet_read_line(fd, line, sizeof(line))) { - if (!prefixcmp(line, "shallow ")) - continue; - if (!prefixcmp(line, "unshallow ")) - continue; - die("git fetch-pack: expected shallow list"); - } - } -} - -struct write_shallow_data { - struct strbuf *out; - int use_pack_protocol; - int count; -}; + int i, ret; + struct ref *ref = NULL; + const char *dest = NULL; + struct ref **sought = NULL; + int nr_sought = 0, alloc_sought = 0; + int fd[2]; + char *pack_lockfile = NULL; + char **pack_lockfile_ptr = NULL; + struct child_process *conn; + struct fetch_pack_args args; + struct sha1_array shallow = SHA1_ARRAY_INIT; -static int write_one_shallow(const struct commit_graft *graft, void *cb_data) -{ - struct write_shallow_data *data = cb_data; - const char *hex = sha1_to_hex(graft->sha1); - data->count++; - if (data->use_pack_protocol) - packet_buf_write(data->out, "shallow %s", hex); - else { - strbuf_addstr(data->out, hex); - strbuf_addch(data->out, '\n'); - } - return 0; -} + packet_trace_identity("fetch-pack"); -static int write_shallow_commits(struct strbuf *out, int use_pack_protocol) -{ - struct write_shallow_data data; - data.out = out; - data.use_pack_protocol = use_pack_protocol; - data.count = 0; - for_each_commit_graft(write_one_shallow, &data); - return data.count; -} + memset(&args, 0, sizeof(args)); + args.uploadpack = "git-upload-pack"; -static enum ack_type get_ack(int fd, unsigned char *result_sha1) -{ - static char line[1000]; - int len = packet_read_line(fd, line, sizeof(line)); + for (i = 1; i < argc && *argv[i] == '-'; i++) { + const char *arg = argv[i]; - if (!len) - die("git fetch-pack: expected ACK/NAK, got EOF"); - if (line[len-1] == '\n') - line[--len] = 0; - if (!strcmp(line, "NAK")) - return NAK; - if (!prefixcmp(line, "ACK ")) { - if (!get_sha1_hex(line+4, result_sha1)) { - if (strstr(line+45, "continue")) - return ACK_continue; - if (strstr(line+45, "common")) - return ACK_common; - if (strstr(line+45, "ready")) - return ACK_ready; - return ACK; + if (starts_with(arg, "--upload-pack=")) { + args.uploadpack = arg + 14; + continue; } - } - die("git fetch_pack: expected ACK/NAK, got '%s'", line); -} - -static void send_request(int fd, struct strbuf *buf) -{ - if (args.stateless_rpc) { - send_sideband(fd, -1, buf->buf, buf->len, LARGE_PACKET_MAX); - packet_flush(fd); - } else - safe_write(fd, buf->buf, buf->len); -} - -static void insert_one_alternate_ref(const struct ref *ref, void *unused) -{ - rev_list_insert_ref(NULL, ref->old_sha1, 0, NULL); -} - -static void insert_alternate_refs(void) -{ - for_each_alternate_ref(insert_one_alternate_ref, NULL); -} - -#define INITIAL_FLUSH 16 -#define PIPESAFE_FLUSH 32 -#define LARGE_FLUSH 1024 - -static int next_flush(int count) -{ - int flush_limit = args.stateless_rpc ? LARGE_FLUSH : PIPESAFE_FLUSH; - - if (count < flush_limit) - count <<= 1; - else - count += flush_limit; - return count; -} - -static int find_common(int fd[2], unsigned char *result_sha1, - struct ref *refs) -{ - int fetching; - int count = 0, flushes = 0, flush_at = INITIAL_FLUSH, retval; - const unsigned char *sha1; - unsigned in_vain = 0; - int got_continue = 0; - int got_ready = 0; - struct strbuf req_buf = STRBUF_INIT; - size_t state_len = 0; - - if (args.stateless_rpc && multi_ack == 1) - die("--stateless-rpc requires multi_ack_detailed"); - if (marked) - for_each_ref(clear_marks, NULL); - marked = 1; - - for_each_ref(rev_list_insert_ref, NULL); - insert_alternate_refs(); - - fetching = 0; - for ( ; refs ; refs = refs->next) { - unsigned char *remote = refs->old_sha1; - const char *remote_hex; - struct object *o; - - /* - * If that object is complete (i.e. it is an ancestor of a - * local ref), we tell them we have it but do not have to - * tell them about its ancestors, which they already know - * about. - * - * We use lookup_object here because we are only - * interested in the case we *know* the object is - * reachable and we have already scanned it. - */ - if (((o = lookup_object(remote)) != NULL) && - (o->flags & COMPLETE)) { + if (starts_with(arg, "--exec=")) { + args.uploadpack = arg + 7; continue; } - - remote_hex = sha1_to_hex(remote); - if (!fetching) { - struct strbuf c = STRBUF_INIT; - if (multi_ack == 2) strbuf_addstr(&c, " multi_ack_detailed"); - if (multi_ack == 1) strbuf_addstr(&c, " multi_ack"); - if (no_done) strbuf_addstr(&c, " no-done"); - if (use_sideband == 2) strbuf_addstr(&c, " side-band-64k"); - if (use_sideband == 1) strbuf_addstr(&c, " side-band"); - if (args.use_thin_pack) strbuf_addstr(&c, " thin-pack"); - if (args.no_progress) strbuf_addstr(&c, " no-progress"); - if (args.include_tag) strbuf_addstr(&c, " include-tag"); - if (prefer_ofs_delta) strbuf_addstr(&c, " ofs-delta"); - packet_buf_write(&req_buf, "want %s%s\n", remote_hex, c.buf); - strbuf_release(&c); - } else - packet_buf_write(&req_buf, "want %s\n", remote_hex); - fetching++; - } - - if (!fetching) { - strbuf_release(&req_buf); - packet_flush(fd[1]); - return 1; - } - - if (is_repository_shallow()) - write_shallow_commits(&req_buf, 1); - if (args.depth > 0) - packet_buf_write(&req_buf, "deepen %d", args.depth); - packet_buf_flush(&req_buf); - state_len = req_buf.len; - - if (args.depth > 0) { - char line[1024]; - unsigned char sha1[20]; - - send_request(fd[1], &req_buf); - while (packet_read_line(fd[0], line, sizeof(line))) { - if (!prefixcmp(line, "shallow ")) { - if (get_sha1_hex(line + 8, sha1)) - die("invalid shallow line: %s", line); - register_shallow(sha1); - continue; - } - if (!prefixcmp(line, "unshallow ")) { - if (get_sha1_hex(line + 10, sha1)) - die("invalid unshallow line: %s", line); - if (!lookup_object(sha1)) - die("object not found: %s", line); - /* make sure that it is parsed as shallow */ - if (!parse_object(sha1)) - die("error in object: %s", line); - if (unregister_shallow(sha1)) - die("no shallow found: %s", line); - continue; - } - die("expected shallow/unshallow, got %s", line); + if (!strcmp("--quiet", arg) || !strcmp("-q", arg)) { + args.quiet = 1; + continue; } - } else if (!args.stateless_rpc) - send_request(fd[1], &req_buf); - - if (!args.stateless_rpc) { - /* If we aren't using the stateless-rpc interface - * we don't need to retain the headers. - */ - strbuf_setlen(&req_buf, 0); - state_len = 0; - } - - flushes = 0; - retval = -1; - while ((sha1 = get_rev())) { - packet_buf_write(&req_buf, "have %s\n", sha1_to_hex(sha1)); - if (args.verbose) - fprintf(stderr, "have %s\n", sha1_to_hex(sha1)); - in_vain++; - if (flush_at <= ++count) { - int ack; - - packet_buf_flush(&req_buf); - send_request(fd[1], &req_buf); - strbuf_setlen(&req_buf, state_len); - flushes++; - flush_at = next_flush(count); - - /* - * We keep one window "ahead" of the other side, and - * will wait for an ACK only on the next one - */ - if (!args.stateless_rpc && count == INITIAL_FLUSH) - continue; - - consume_shallow_list(fd[0]); - do { - ack = get_ack(fd[0], result_sha1); - if (args.verbose && ack) - fprintf(stderr, "got ack %d %s\n", ack, - sha1_to_hex(result_sha1)); - switch (ack) { - case ACK: - flushes = 0; - multi_ack = 0; - retval = 0; - goto done; - case ACK_common: - case ACK_ready: - case ACK_continue: { - struct commit *commit = - lookup_commit(result_sha1); - if (!commit) - die("invalid commit %s", sha1_to_hex(result_sha1)); - if (args.stateless_rpc - && ack == ACK_common - && !(commit->object.flags & COMMON)) { - /* We need to replay the have for this object - * on the next RPC request so the peer knows - * it is in common with us. - */ - const char *hex = sha1_to_hex(result_sha1); - packet_buf_write(&req_buf, "have %s\n", hex); - state_len = req_buf.len; - } - mark_common(commit, 0, 1); - retval = 0; - in_vain = 0; - got_continue = 1; - if (ack == ACK_ready) { - rev_list = NULL; - got_ready = 1; - } - break; - } - } - } while (ack); - flushes--; - if (got_continue && MAX_IN_VAIN < in_vain) { - if (args.verbose) - fprintf(stderr, "giving up\n"); - break; /* give up */ - } + if (!strcmp("--keep", arg) || !strcmp("-k", arg)) { + args.lock_pack = args.keep_pack; + args.keep_pack = 1; + continue; } - } -done: - if (!got_ready || !no_done) { - packet_buf_write(&req_buf, "done\n"); - send_request(fd[1], &req_buf); - } - if (args.verbose) - fprintf(stderr, "done\n"); - if (retval != 0) { - multi_ack = 0; - flushes++; - } - strbuf_release(&req_buf); - - consume_shallow_list(fd[0]); - while (flushes || multi_ack) { - int ack = get_ack(fd[0], result_sha1); - if (ack) { - if (args.verbose) - fprintf(stderr, "got ack (%d) %s\n", ack, - sha1_to_hex(result_sha1)); - if (ack == ACK) - return 0; - multi_ack = 1; + if (!strcmp("--thin", arg)) { + args.use_thin_pack = 1; continue; } - flushes--; - } - /* it is no error to fetch into a completely empty repo */ - return count ? retval : 0; -} - -static struct commit_list *complete; - -static int mark_complete(const char *path, const unsigned char *sha1, int flag, void *cb_data) -{ - struct object *o = parse_object(sha1); - - while (o && o->type == OBJ_TAG) { - struct tag *t = (struct tag *) o; - if (!t->tagged) - break; /* broken repository */ - o->flags |= COMPLETE; - o = parse_object(t->tagged->sha1); - } - if (o && o->type == OBJ_COMMIT) { - struct commit *commit = (struct commit *)o; - if (!(commit->object.flags & COMPLETE)) { - commit->object.flags |= COMPLETE; - commit_list_insert_by_date(commit, &complete); + if (!strcmp("--include-tag", arg)) { + args.include_tag = 1; + continue; } - } - return 0; -} - -static void mark_recent_complete_commits(unsigned long cutoff) -{ - while (complete && cutoff <= complete->item->date) { - if (args.verbose) - fprintf(stderr, "Marking %s as complete\n", - sha1_to_hex(complete->item->object.sha1)); - pop_most_recent_commit(&complete, COMPLETE); - } -} - -static void filter_refs(struct ref **refs, int nr_match, char **match) -{ - struct ref **return_refs; - struct ref *newlist = NULL; - struct ref **newtail = &newlist; - struct ref *ref, *next; - struct ref *fastarray[32]; - - if (nr_match && !args.fetch_all) { - if (ARRAY_SIZE(fastarray) < nr_match) - return_refs = xcalloc(nr_match, sizeof(struct ref *)); - else { - return_refs = fastarray; - memset(return_refs, 0, sizeof(struct ref *) * nr_match); + if (!strcmp("--all", arg)) { + args.fetch_all = 1; + continue; } - } - else - return_refs = NULL; - - for (ref = *refs; ref; ref = next) { - next = ref->next; - if (!memcmp(ref->name, "refs/", 5) && - check_refname_format(ref->name + 5, 0)) - ; /* trash */ - else if (args.fetch_all && - (!args.depth || prefixcmp(ref->name, "refs/tags/") )) { - *newtail = ref; - ref->next = NULL; - newtail = &ref->next; + if (!strcmp("--stdin", arg)) { + args.stdin_refs = 1; continue; } - else { - int i; - for (i = 0; i < nr_match; i++) { - if (!strcmp(ref->name, match[i])) { - match[i][0] = '\0'; - return_refs[i] = ref; - break; - } - } - if (i < nr_match) - continue; /* we will link it later */ + if (!strcmp("--diag-url", arg)) { + args.diag_url = 1; + continue; } - free(ref); - } - - if (!args.fetch_all) { - int i; - for (i = 0; i < nr_match; i++) { - ref = return_refs[i]; - if (ref) { - *newtail = ref; - ref->next = NULL; - newtail = &ref->next; - } + if (!strcmp("-v", arg)) { + args.verbose = 1; + continue; } - if (return_refs != fastarray) - free(return_refs); - } - *refs = newlist; -} - -static int everything_local(struct ref **refs, int nr_match, char **match) -{ - struct ref *ref; - int retval; - unsigned long cutoff = 0; - - save_commit_buffer = 0; - - for (ref = *refs; ref; ref = ref->next) { - struct object *o; - - o = parse_object(ref->old_sha1); - if (!o) + if (starts_with(arg, "--depth=")) { + args.depth = strtol(arg + 8, NULL, 0); continue; - - /* We already have it -- which may mean that we were - * in sync with the other side at some time after - * that (it is OK if we guess wrong here). - */ - if (o->type == OBJ_COMMIT) { - struct commit *commit = (struct commit *)o; - if (!cutoff || cutoff < commit->date) - cutoff = commit->date; } - } - - if (!args.depth) { - for_each_ref(mark_complete, NULL); - if (cutoff) - mark_recent_complete_commits(cutoff); - } - - /* - * Mark all complete remote refs as common refs. - * Don't mark them common yet; the server has to be told so first. - */ - for (ref = *refs; ref; ref = ref->next) { - struct object *o = deref_tag(lookup_object(ref->old_sha1), - NULL, 0); - - if (!o || o->type != OBJ_COMMIT || !(o->flags & COMPLETE)) + if (!strcmp("--no-progress", arg)) { + args.no_progress = 1; continue; - - if (!(o->flags & SEEN)) { - rev_list_push((struct commit *)o, COMMON_REF | SEEN); - - mark_common((struct commit *)o, 1, 1); } - } - - filter_refs(refs, nr_match, match); - - for (retval = 1, ref = *refs; ref ; ref = ref->next) { - const unsigned char *remote = ref->old_sha1; - unsigned char local[20]; - struct object *o; - - o = lookup_object(remote); - if (!o || !(o->flags & COMPLETE)) { - retval = 0; - if (!args.verbose) - continue; - fprintf(stderr, - "want %s (%s)\n", sha1_to_hex(remote), - ref->name); + if (!strcmp("--stateless-rpc", arg)) { + args.stateless_rpc = 1; continue; } - - hashcpy(ref->new_sha1, local); - if (!args.verbose) + if (!strcmp("--lock-pack", arg)) { + args.lock_pack = 1; + pack_lockfile_ptr = &pack_lockfile; continue; - fprintf(stderr, - "already have %s (%s)\n", sha1_to_hex(remote), - ref->name); - } - return retval; -} - -static int sideband_demux(int in, int out, void *data) -{ - int *xd = data; - - int ret = recv_sideband("fetch-pack", xd[0], out); - close(out); - return ret; -} - -static int get_pack(int xd[2], char **pack_lockfile) -{ - struct async demux; - const char *argv[20]; - char keep_arg[256]; - char hdr_arg[256]; - const char **av; - int do_keep = args.keep_pack; - struct child_process cmd; - - memset(&demux, 0, sizeof(demux)); - if (use_sideband) { - /* xd[] is talking with upload-pack; subprocess reads from - * xd[0], spits out band#2 to stderr, and feeds us band#1 - * through demux->out. - */ - demux.proc = sideband_demux; - demux.data = xd; - demux.out = -1; - if (start_async(&demux)) - die("fetch-pack: unable to fork off sideband" - " demultiplexer"); - } - else - demux.out = xd[0]; - - memset(&cmd, 0, sizeof(cmd)); - cmd.argv = argv; - av = argv; - *hdr_arg = 0; - if (!args.keep_pack && unpack_limit) { - struct pack_header header; - - if (read_pack_header(demux.out, &header)) - die("protocol error: bad pack header"); - snprintf(hdr_arg, sizeof(hdr_arg), - "--pack_header=%"PRIu32",%"PRIu32, - ntohl(header.hdr_version), ntohl(header.hdr_entries)); - if (ntohl(header.hdr_entries) < unpack_limit) - do_keep = 0; - else - do_keep = 1; - } - - if (do_keep) { - if (pack_lockfile) - cmd.out = -1; - *av++ = "index-pack"; - *av++ = "--stdin"; - if (!args.quiet && !args.no_progress) - *av++ = "-v"; - if (args.use_thin_pack) - *av++ = "--fix-thin"; - if (args.lock_pack || unpack_limit) { - int s = sprintf(keep_arg, - "--keep=fetch-pack %"PRIuMAX " on ", (uintmax_t) getpid()); - if (gethostname(keep_arg + s, sizeof(keep_arg) - s)) - strcpy(keep_arg + s, "localhost"); - *av++ = keep_arg; } - } - else { - *av++ = "unpack-objects"; - if (args.quiet) - *av++ = "-q"; - } - if (*hdr_arg) - *av++ = hdr_arg; - if (fetch_fsck_objects >= 0 - ? fetch_fsck_objects - : transfer_fsck_objects >= 0 - ? transfer_fsck_objects - : 0) - *av++ = "--strict"; - *av++ = NULL; - - cmd.in = demux.out; - cmd.git_cmd = 1; - if (start_command(&cmd)) - die("fetch-pack: unable to fork off %s", argv[0]); - if (do_keep && pack_lockfile) { - *pack_lockfile = index_pack_lockfile(cmd.out); - close(cmd.out); - } - - if (finish_command(&cmd)) - die("%s failed", argv[0]); - if (use_sideband && finish_async(&demux)) - die("error in sideband demultiplexer"); - return 0; -} - -static struct ref *do_fetch_pack(int fd[2], - const struct ref *orig_ref, - int nr_match, - char **match, - char **pack_lockfile) -{ - struct ref *ref = copy_ref_list(orig_ref); - unsigned char sha1[20]; - - if (is_repository_shallow() && !server_supports("shallow")) - die("Server does not support shallow clients"); - if (server_supports("multi_ack_detailed")) { - if (args.verbose) - fprintf(stderr, "Server supports multi_ack_detailed\n"); - multi_ack = 2; - if (server_supports("no-done")) { - if (args.verbose) - fprintf(stderr, "Server supports no-done\n"); - if (args.stateless_rpc) - no_done = 1; + if (!strcmp("--check-self-contained-and-connected", arg)) { + args.check_self_contained_and_connected = 1; + continue; } - } - else if (server_supports("multi_ack")) { - if (args.verbose) - fprintf(stderr, "Server supports multi_ack\n"); - multi_ack = 1; - } - if (server_supports("side-band-64k")) { - if (args.verbose) - fprintf(stderr, "Server supports side-band-64k\n"); - use_sideband = 2; - } - else if (server_supports("side-band")) { - if (args.verbose) - fprintf(stderr, "Server supports side-band\n"); - use_sideband = 1; - } - if (server_supports("ofs-delta")) { - if (args.verbose) - fprintf(stderr, "Server supports ofs-delta\n"); - } else - prefer_ofs_delta = 0; - if (everything_local(&ref, nr_match, match)) { - packet_flush(fd[1]); - goto all_done; - } - if (find_common(fd, sha1, ref) < 0) - if (!args.keep_pack) - /* When cloning, it is not unusual to have - * no common commit. - */ - warning("no common commits"); - - if (args.stateless_rpc) - packet_flush(fd[1]); - if (get_pack(fd, pack_lockfile)) - die("git fetch-pack: fetch failed."); - - all_done: - return ref; -} - -static int remove_duplicates(int nr_heads, char **heads) -{ - int src, dst; - - for (src = dst = 0; src < nr_heads; src++) { - /* If heads[src] is different from any of - * heads[0..dst], push it in. - */ - int i; - for (i = 0; i < dst; i++) { - if (!strcmp(heads[i], heads[src])) - break; + if (!strcmp("--cloning", arg)) { + args.cloning = 1; + continue; } - if (i < dst) + if (!strcmp("--update-shallow", arg)) { + args.update_shallow = 1; continue; - if (src != dst) - heads[dst] = heads[src]; - dst++; - } - return dst; -} - -static int fetch_pack_config(const char *var, const char *value, void *cb) -{ - if (strcmp(var, "fetch.unpacklimit") == 0) { - fetch_unpack_limit = git_config_int(var, value); - return 0; - } - - if (strcmp(var, "transfer.unpacklimit") == 0) { - transfer_unpack_limit = git_config_int(var, value); - return 0; - } - - if (strcmp(var, "repack.usedeltabaseoffset") == 0) { - prefer_ofs_delta = git_config_bool(var, value); - return 0; - } - - if (!strcmp(var, "fetch.fsckobjects")) { - fetch_fsck_objects = git_config_bool(var, value); - return 0; - } - - if (!strcmp(var, "transfer.fsckobjects")) { - transfer_fsck_objects = git_config_bool(var, value); - return 0; + } + usage(fetch_pack_usage); } - return git_default_config(var, value, cb); -} - -static struct lock_file lock; - -static void fetch_pack_setup(void) -{ - static int did_setup; - if (did_setup) - return; - git_config(fetch_pack_config, NULL); - if (0 <= transfer_unpack_limit) - unpack_limit = transfer_unpack_limit; - else if (0 <= fetch_unpack_limit) - unpack_limit = fetch_unpack_limit; - did_setup = 1; -} - -int cmd_fetch_pack(int argc, const char **argv, const char *prefix) -{ - int i, ret, nr_heads; - struct ref *ref = NULL; - char *dest = NULL, **heads; - int fd[2]; - char *pack_lockfile = NULL; - char **pack_lockfile_ptr = NULL; - struct child_process *conn; - - packet_trace_identity("fetch-pack"); - - nr_heads = 0; - heads = NULL; - for (i = 1; i < argc; i++) { - const char *arg = argv[i]; + if (i < argc) + dest = argv[i++]; + else + usage(fetch_pack_usage); - if (*arg == '-') { - if (!prefixcmp(arg, "--upload-pack=")) { - args.uploadpack = arg + 14; - continue; - } - if (!prefixcmp(arg, "--exec=")) { - args.uploadpack = arg + 7; - continue; - } - if (!strcmp("--quiet", arg) || !strcmp("-q", arg)) { - args.quiet = 1; - continue; - } - if (!strcmp("--keep", arg) || !strcmp("-k", arg)) { - args.lock_pack = args.keep_pack; - args.keep_pack = 1; - continue; - } - if (!strcmp("--thin", arg)) { - args.use_thin_pack = 1; - continue; - } - if (!strcmp("--include-tag", arg)) { - args.include_tag = 1; - continue; - } - if (!strcmp("--all", arg)) { - args.fetch_all = 1; - continue; - } - if (!strcmp("-v", arg)) { - args.verbose = 1; - continue; - } - if (!prefixcmp(arg, "--depth=")) { - args.depth = strtol(arg + 8, NULL, 0); - continue; - } - if (!strcmp("--no-progress", arg)) { - args.no_progress = 1; - continue; - } - if (!strcmp("--stateless-rpc", arg)) { - args.stateless_rpc = 1; - continue; - } - if (!strcmp("--lock-pack", arg)) { - args.lock_pack = 1; - pack_lockfile_ptr = &pack_lockfile; - continue; + /* + * Copy refs from cmdline to growable list, then append any + * refs from the standard input: + */ + for (; i < argc; i++) + add_sought_entry(&sought, &nr_sought, &alloc_sought, argv[i]); + if (args.stdin_refs) { + if (args.stateless_rpc) { + /* in stateless RPC mode we use pkt-line to read + * from stdin, until we get a flush packet + */ + for (;;) { + char *line = packet_read_line(0, NULL); + if (!line) + break; + add_sought_entry(&sought, &nr_sought, &alloc_sought, line); } - usage(fetch_pack_usage); } - dest = (char *)arg; - heads = (char **)(argv + i + 1); - nr_heads = argc - i - 1; - break; + else { + /* read from stdin one ref per line, until EOF */ + struct strbuf line = STRBUF_INIT; + while (strbuf_getline_lf(&line, stdin) != EOF) + add_sought_entry(&sought, &nr_sought, &alloc_sought, line.buf); + strbuf_release(&line); + } } - if (!dest) - usage(fetch_pack_usage); if (args.stateless_rpc) { conn = NULL; fd[0] = 0; fd[1] = 1; } else { - conn = git_connect(fd, (char *)dest, args.uploadpack, - args.verbose ? CONNECT_VERBOSE : 0); - } - - get_remote_heads(fd[0], &ref, 0, NULL); - - ref = fetch_pack(&args, fd, conn, ref, dest, - nr_heads, heads, pack_lockfile_ptr); + int flags = args.verbose ? CONNECT_VERBOSE : 0; + if (args.diag_url) + flags |= CONNECT_DIAG_URL; + conn = git_connect(fd, dest, args.uploadpack, + flags); + if (!conn) + return args.diag_url ? 0 : 1; + } + get_remote_heads(fd[0], NULL, 0, &ref, 0, NULL, &shallow); + + ref = fetch_pack(&args, fd, conn, ref, dest, sought, nr_sought, + &shallow, pack_lockfile_ptr); if (pack_lockfile) { printf("lock %s\n", pack_lockfile); fflush(stdout); } + if (args.check_self_contained_and_connected && + args.self_contained_and_connected) { + printf("connectivity-ok\n"); + fflush(stdout); + } close(fd[0]); close(fd[1]); if (finish_connect(conn)) - ref = NULL; + return 1; + ret = !ref; - if (!ret && nr_heads) { - /* If the heads to pull were given, we should have - * consumed all of them by matching the remote. - * Otherwise, 'git fetch remote no-such-ref' would - * silently succeed without issuing an error. - */ - for (i = 0; i < nr_heads; i++) - if (heads[i] && heads[i][0]) { - error("no such remote ref %s", heads[i]); - ret = 1; - } + /* + * If the heads to pull were given, we should have consumed + * all of them by matching the remote. Otherwise, 'git fetch + * remote no-such-ref' would silently succeed without issuing + * an error. + */ + for (i = 0; i < nr_sought; i++) { + if (!sought[i] || sought[i]->matched) + continue; + error("no such remote ref %s", sought[i]->name); + ret = 1; } + while (ref) { printf("%s %s\n", - sha1_to_hex(ref->old_sha1), ref->name); + oid_to_hex(&ref->old_oid), ref->name); ref = ref->next; } return ret; } - -struct ref *fetch_pack(struct fetch_pack_args *my_args, - int fd[], struct child_process *conn, - const struct ref *ref, - const char *dest, - int nr_heads, - char **heads, - char **pack_lockfile) -{ - struct stat st; - struct ref *ref_cpy; - - fetch_pack_setup(); - if (&args != my_args) - memcpy(&args, my_args, sizeof(args)); - if (args.depth > 0) { - if (stat(git_path("shallow"), &st)) - st.st_mtime = 0; - } - - if (heads && nr_heads) - nr_heads = remove_duplicates(nr_heads, heads); - if (!ref) { - packet_flush(fd[1]); - die("no matching remote head"); - } - ref_cpy = do_fetch_pack(fd, ref, nr_heads, heads, pack_lockfile); - - if (args.depth > 0) { - struct cache_time mtime; - struct strbuf sb = STRBUF_INIT; - char *shallow = git_path("shallow"); - int fd; - - mtime.sec = st.st_mtime; - mtime.nsec = ST_MTIME_NSEC(st); - if (stat(shallow, &st)) { - if (mtime.sec) - die("shallow file was removed during fetch"); - } else if (st.st_mtime != mtime.sec -#ifdef USE_NSEC - || ST_MTIME_NSEC(st) != mtime.nsec -#endif - ) - die("shallow file was changed during fetch"); - - fd = hold_lock_file_for_update(&lock, shallow, - LOCK_DIE_ON_ERROR); - if (!write_shallow_commits(&sb, 0) - || write_in_full(fd, sb.buf, sb.len) != sb.len) { - unlink_or_warn(shallow); - rollback_lock_file(&lock); - } else { - commit_lock_file(&lock); - } - strbuf_release(&sb); - } - - reprepare_packed_git(); - return ref_cpy; -} diff --git a/builtin/fetch.c b/builtin/fetch.c index 33ad3aad2c..f896aa1f88 100644 --- a/builtin/fetch.c +++ b/builtin/fetch.c @@ -11,15 +11,16 @@ #include "run-command.h" #include "parse-options.h" #include "sigchain.h" -#include "transport.h" +#include "submodule-config.h" #include "submodule.h" #include "connected.h" +#include "argv-array.h" static const char * const builtin_fetch_usage[] = { - "git fetch [<options>] [<repository> [<refspec>...]]", - "git fetch [<options>] <group>", - "git fetch --multiple [<options>] [(<repository> | <group>)...]", - "git fetch --all [<options>]", + N_("git fetch [<options>] [<repository> [<refspec>...]]"), + N_("git fetch [<options>] <group>"), + N_("git fetch --multiple [<options>] [(<repository> | <group>)...]"), + N_("git fetch --all [<options>]"), NULL }; @@ -29,15 +30,25 @@ enum { TAGS_SET = 2 }; -static int all, append, dry_run, force, keep, multiple, prune, update_head_ok, verbosity; -static int progress, recurse_submodules = RECURSE_SUBMODULES_DEFAULT; -static int tags = TAGS_DEFAULT; +static int fetch_prune_config = -1; /* unspecified */ +static int prune = -1; /* unspecified */ +#define PRUNE_BY_DEFAULT 0 /* do we prune by default? */ + +static int all, append, dry_run, force, keep, multiple, update_head_ok, verbosity; +static int progress = -1, recurse_submodules = RECURSE_SUBMODULES_DEFAULT; +static int tags = TAGS_DEFAULT, unshallow, update_shallow; +static int max_children = -1; +static enum transport_family family; static const char *depth; static const char *upload_pack; static struct strbuf default_rla = STRBUF_INIT; -static struct transport *transport; +static struct transport *gtransport; +static struct transport *gsecondary; static const char *submodule_prefix = ""; static const char *recurse_submodules_default; +static int shown_url = 0; +static int refmap_alloc, refmap_nr; +static const char **refmap_array; static int option_parse_recurse_submodules(const struct option *opt, const char *arg, int unset) @@ -53,46 +64,83 @@ static int option_parse_recurse_submodules(const struct option *opt, return 0; } +static int git_fetch_config(const char *k, const char *v, void *cb) +{ + if (!strcmp(k, "fetch.prune")) { + fetch_prune_config = git_config_bool(k, v); + return 0; + } + return git_default_config(k, v, cb); +} + +static int parse_refmap_arg(const struct option *opt, const char *arg, int unset) +{ + ALLOC_GROW(refmap_array, refmap_nr + 1, refmap_alloc); + + /* + * "git fetch --refmap='' origin foo" + * can be used to tell the command not to store anywhere + */ + if (*arg) + refmap_array[refmap_nr++] = arg; + return 0; +} + static struct option builtin_fetch_options[] = { OPT__VERBOSITY(&verbosity), - OPT_BOOLEAN(0, "all", &all, - "fetch from all remotes"), - OPT_BOOLEAN('a', "append", &append, - "append to .git/FETCH_HEAD instead of overwriting"), - OPT_STRING(0, "upload-pack", &upload_pack, "path", - "path to upload pack on remote end"), - OPT__FORCE(&force, "force overwrite of local branch"), - OPT_BOOLEAN('m', "multiple", &multiple, - "fetch from multiple remotes"), + OPT_BOOL(0, "all", &all, + N_("fetch from all remotes")), + OPT_BOOL('a', "append", &append, + N_("append to .git/FETCH_HEAD instead of overwriting")), + OPT_STRING(0, "upload-pack", &upload_pack, N_("path"), + N_("path to upload pack on remote end")), + OPT__FORCE(&force, N_("force overwrite of local branch")), + OPT_BOOL('m', "multiple", &multiple, + N_("fetch from multiple remotes")), OPT_SET_INT('t', "tags", &tags, - "fetch all tags and associated objects", TAGS_SET), + N_("fetch all tags and associated objects"), TAGS_SET), OPT_SET_INT('n', NULL, &tags, - "do not fetch all tags (--no-tags)", TAGS_UNSET), - OPT_BOOLEAN('p', "prune", &prune, - "prune remote-tracking branches no longer on remote"), - { OPTION_CALLBACK, 0, "recurse-submodules", NULL, "on-demand", - "control recursive fetching of submodules", + N_("do not fetch all tags (--no-tags)"), TAGS_UNSET), + OPT_INTEGER('j', "jobs", &max_children, + N_("number of submodules fetched in parallel")), + OPT_BOOL('p', "prune", &prune, + N_("prune remote-tracking branches no longer on remote")), + { OPTION_CALLBACK, 0, "recurse-submodules", NULL, N_("on-demand"), + N_("control recursive fetching of submodules"), PARSE_OPT_OPTARG, option_parse_recurse_submodules }, - OPT_BOOLEAN(0, "dry-run", &dry_run, - "dry run"), - OPT_BOOLEAN('k', "keep", &keep, "keep downloaded pack"), - OPT_BOOLEAN('u', "update-head-ok", &update_head_ok, - "allow updating of HEAD ref"), - OPT_BOOLEAN(0, "progress", &progress, "force progress reporting"), - OPT_STRING(0, "depth", &depth, "depth", - "deepen history of shallow clone"), - { OPTION_STRING, 0, "submodule-prefix", &submodule_prefix, "dir", - "prepend this to submodule path output", PARSE_OPT_HIDDEN }, + OPT_BOOL(0, "dry-run", &dry_run, + N_("dry run")), + OPT_BOOL('k', "keep", &keep, N_("keep downloaded pack")), + OPT_BOOL('u', "update-head-ok", &update_head_ok, + N_("allow updating of HEAD ref")), + OPT_BOOL(0, "progress", &progress, N_("force progress reporting")), + OPT_STRING(0, "depth", &depth, N_("depth"), + N_("deepen history of shallow clone")), + { OPTION_SET_INT, 0, "unshallow", &unshallow, NULL, + N_("convert to a complete repository"), + PARSE_OPT_NONEG | PARSE_OPT_NOARG, NULL, 1 }, + { OPTION_STRING, 0, "submodule-prefix", &submodule_prefix, N_("dir"), + N_("prepend this to submodule path output"), PARSE_OPT_HIDDEN }, { OPTION_STRING, 0, "recurse-submodules-default", &recurse_submodules_default, NULL, - "default mode for recursion", PARSE_OPT_HIDDEN }, + N_("default mode for recursion"), PARSE_OPT_HIDDEN }, + OPT_BOOL(0, "update-shallow", &update_shallow, + N_("accept refs that update .git/shallow")), + { OPTION_CALLBACK, 0, "refmap", NULL, N_("refmap"), + N_("specify fetch refmap"), PARSE_OPT_NONEG, parse_refmap_arg }, + OPT_SET_INT('4', "ipv4", &family, N_("use IPv4 addresses only"), + TRANSPORT_FAMILY_IPV4), + OPT_SET_INT('6', "ipv6", &family, N_("use IPv6 addresses only"), + TRANSPORT_FAMILY_IPV6), OPT_END() }; static void unlock_pack(void) { - if (transport) - transport_unlock_pack(transport); + if (gtransport) + transport_unlock_pack(gtransport); + if (gsecondary) + transport_unlock_pack(gsecondary); } static void unlock_pack_on_signal(int signo) @@ -115,7 +163,7 @@ static void add_merge_config(struct ref **head, for (rm = *head; rm; rm = rm->next) { if (branch_merge_matches(branch, i, rm->name)) { - rm->merge = 1; + rm->fetch_head_status = FETCH_HEAD_MERGE; break; } } @@ -136,36 +184,174 @@ static void add_merge_config(struct ref **head, refspec.src = branch->merge[i]->src; get_fetch_map(remote_refs, &refspec, tail, 1); for (rm = *old_tail; rm; rm = rm->next) - rm->merge = 1; + rm->fetch_head_status = FETCH_HEAD_MERGE; + } +} + +static int add_existing(const char *refname, const struct object_id *oid, + int flag, void *cbdata) +{ + struct string_list *list = (struct string_list *)cbdata; + struct string_list_item *item = string_list_insert(list, refname); + struct object_id *old_oid = xmalloc(sizeof(*old_oid)); + + oidcpy(old_oid, oid); + item->util = old_oid; + return 0; +} + +static int will_fetch(struct ref **head, const unsigned char *sha1) +{ + struct ref *rm = *head; + while (rm) { + if (!hashcmp(rm->old_oid.hash, sha1)) + return 1; + rm = rm->next; } + return 0; } static void find_non_local_tags(struct transport *transport, struct ref **head, - struct ref ***tail); + struct ref ***tail) +{ + struct string_list existing_refs = STRING_LIST_INIT_DUP; + struct string_list remote_refs = STRING_LIST_INIT_NODUP; + const struct ref *ref; + struct string_list_item *item = NULL; + + for_each_ref(add_existing, &existing_refs); + for (ref = transport_get_remote_refs(transport); ref; ref = ref->next) { + if (!starts_with(ref->name, "refs/tags/")) + continue; + + /* + * The peeled ref always follows the matching base + * ref, so if we see a peeled ref that we don't want + * to fetch then we can mark the ref entry in the list + * as one to ignore by setting util to NULL. + */ + if (ends_with(ref->name, "^{}")) { + if (item && !has_object_file(&ref->old_oid) && + !will_fetch(head, ref->old_oid.hash) && + !has_sha1_file(item->util) && + !will_fetch(head, item->util)) + item->util = NULL; + item = NULL; + continue; + } + + /* + * If item is non-NULL here, then we previously saw a + * ref not followed by a peeled reference, so we need + * to check if it is a lightweight tag that we want to + * fetch. + */ + if (item && !has_sha1_file(item->util) && + !will_fetch(head, item->util)) + item->util = NULL; + + item = NULL; + + /* skip duplicates and refs that we already have */ + if (string_list_has_string(&remote_refs, ref->name) || + string_list_has_string(&existing_refs, ref->name)) + continue; + + item = string_list_insert(&remote_refs, ref->name); + item->util = (void *)&ref->old_oid; + } + string_list_clear(&existing_refs, 1); + + /* + * We may have a final lightweight tag that needs to be + * checked to see if it needs fetching. + */ + if (item && !has_sha1_file(item->util) && + !will_fetch(head, item->util)) + item->util = NULL; + + /* + * For all the tags in the remote_refs string list, + * add them to the list of refs to be fetched + */ + for_each_string_list_item(item, &remote_refs) { + /* Unless we have already decided to ignore this item... */ + if (item->util) + { + struct ref *rm = alloc_ref(item->string); + rm->peer_ref = alloc_ref(item->string); + oidcpy(&rm->old_oid, item->util); + **tail = rm; + *tail = &rm->next; + } + } + + string_list_clear(&remote_refs, 0); +} static struct ref *get_ref_map(struct transport *transport, - struct refspec *refs, int ref_count, int tags, - int *autotags) + struct refspec *refspecs, int refspec_count, + int tags, int *autotags) { int i; struct ref *rm; struct ref *ref_map = NULL; struct ref **tail = &ref_map; + /* opportunistically-updated references: */ + struct ref *orefs = NULL, **oref_tail = &orefs; + const struct ref *remote_refs = transport_get_remote_refs(transport); - if (ref_count || tags == TAGS_SET) { - for (i = 0; i < ref_count; i++) { - get_fetch_map(remote_refs, &refs[i], &tail, 0); - if (refs[i].dst && refs[i].dst[0]) + if (refspec_count) { + struct refspec *fetch_refspec; + int fetch_refspec_nr; + + for (i = 0; i < refspec_count; i++) { + get_fetch_map(remote_refs, &refspecs[i], &tail, 0); + if (refspecs[i].dst && refspecs[i].dst[0]) *autotags = 1; } - /* Merge everything on the command line, but not --tags */ + /* Merge everything on the command line (but not --tags) */ for (rm = ref_map; rm; rm = rm->next) - rm->merge = 1; + rm->fetch_head_status = FETCH_HEAD_MERGE; + + /* + * For any refs that we happen to be fetching via + * command-line arguments, the destination ref might + * have been missing or have been different than the + * remote-tracking ref that would be derived from the + * configured refspec. In these cases, we want to + * take the opportunity to update their configured + * remote-tracking reference. However, we do not want + * to mention these entries in FETCH_HEAD at all, as + * they would simply be duplicates of existing + * entries, so we set them FETCH_HEAD_IGNORE below. + * + * We compute these entries now, based only on the + * refspecs specified on the command line. But we add + * them to the list following the refspecs resulting + * from the tags option so that one of the latter, + * which has FETCH_HEAD_NOT_FOR_MERGE, is not removed + * by ref_remove_duplicates() in favor of one of these + * opportunistic entries with FETCH_HEAD_IGNORE. + */ + if (refmap_array) { + fetch_refspec = parse_fetch_refspec(refmap_nr, refmap_array); + fetch_refspec_nr = refmap_nr; + } else { + fetch_refspec = transport->remote->fetch; + fetch_refspec_nr = transport->remote->fetch_refspec_nr; + } + + for (i = 0; i < fetch_refspec_nr; i++) + get_fetch_map(ref_map, &fetch_refspec[i], &oref_tail, 1); + if (tags == TAGS_SET) get_fetch_map(remote_refs, tag_refspec, &tail, 0); + } else if (refmap_array) { + die("--refmap option is only meaningful with command-line refspec(s)."); } else { /* Use the defaults */ struct remote *remote = transport->remote; @@ -182,7 +368,7 @@ static struct ref *get_ref_map(struct transport *transport, *autotags = 1; if (!i && !has_merge && ref_map && !remote->fetch[0].pattern) - ref_map->merge = 1; + ref_map->fetch_head_status = FETCH_HEAD_MERGE; } /* * if the remote we're fetching from is the same @@ -198,15 +384,25 @@ static struct ref *get_ref_map(struct transport *transport, ref_map = get_remote_ref(remote_refs, "HEAD"); if (!ref_map) die(_("Couldn't find remote ref HEAD")); - ref_map->merge = 1; + ref_map->fetch_head_status = FETCH_HEAD_MERGE; tail = &ref_map->next; } } - if (tags == TAGS_DEFAULT && *autotags) + + if (tags == TAGS_SET) + /* also fetch all tags */ + get_fetch_map(remote_refs, tag_refspec, &tail, 0); + else if (tags == TAGS_DEFAULT && *autotags) find_non_local_tags(transport, &ref_map, &tail); - ref_remove_duplicates(ref_map); - return ref_map; + /* Now append any refs to be updated opportunistically: */ + *tail = orefs; + for (rm = orefs; rm; rm = rm->next) { + rm->fetch_head_status = FETCH_HEAD_IGNORE; + tail = &rm->next; + } + + return ref_remove_duplicates(ref_map); } #define STORE_REF_ERROR_OTHER 1 @@ -218,28 +414,46 @@ static int s_update_ref(const char *action, { char msg[1024]; char *rla = getenv("GIT_REFLOG_ACTION"); - static struct ref_lock *lock; + struct ref_transaction *transaction; + struct strbuf err = STRBUF_INIT; + int ret, df_conflict = 0; if (dry_run) return 0; if (!rla) rla = default_rla.buf; snprintf(msg, sizeof(msg), "%s: %s", rla, action); - lock = lock_any_ref_for_update(ref->name, - check_old ? ref->old_sha1 : NULL, 0); - if (!lock) - return errno == ENOTDIR ? STORE_REF_ERROR_DF_CONFLICT : - STORE_REF_ERROR_OTHER; - if (write_ref_sha1(lock, ref->new_sha1, msg) < 0) - return errno == ENOTDIR ? STORE_REF_ERROR_DF_CONFLICT : - STORE_REF_ERROR_OTHER; + + transaction = ref_transaction_begin(&err); + if (!transaction || + ref_transaction_update(transaction, ref->name, + ref->new_oid.hash, + check_old ? ref->old_oid.hash : NULL, + 0, msg, &err)) + goto fail; + + ret = ref_transaction_commit(transaction, &err); + if (ret) { + df_conflict = (ret == TRANSACTION_NAME_CONFLICT); + goto fail; + } + + ref_transaction_free(transaction); + strbuf_release(&err); return 0; +fail: + ref_transaction_free(transaction); + error("%s", err.buf); + strbuf_release(&err); + return df_conflict ? STORE_REF_ERROR_DF_CONFLICT + : STORE_REF_ERROR_OTHER; } #define REFCOL_WIDTH 10 static int update_local_ref(struct ref *ref, const char *remote, + const struct ref *remote_ref, struct strbuf *display) { struct commit *current = NULL, *updated; @@ -247,108 +461,117 @@ static int update_local_ref(struct ref *ref, struct branch *current_branch = branch_get(NULL); const char *pretty_ref = prettify_refname(ref->name); - type = sha1_object_info(ref->new_sha1, NULL); + type = sha1_object_info(ref->new_oid.hash, NULL); if (type < 0) - die(_("object %s not found"), sha1_to_hex(ref->new_sha1)); + die(_("object %s not found"), oid_to_hex(&ref->new_oid)); - if (!hashcmp(ref->old_sha1, ref->new_sha1)) { + if (!oidcmp(&ref->old_oid, &ref->new_oid)) { if (verbosity > 0) strbuf_addf(display, "= %-*s %-*s -> %s", - TRANSPORT_SUMMARY_WIDTH, - _("[up to date]"), REFCOL_WIDTH, - remote, pretty_ref); + TRANSPORT_SUMMARY(_("[up to date]")), + REFCOL_WIDTH, remote, pretty_ref); return 0; } if (current_branch && !strcmp(ref->name, current_branch->name) && !(update_head_ok || is_bare_repository()) && - !is_null_sha1(ref->old_sha1)) { + !is_null_oid(&ref->old_oid)) { /* * If this is the head, and it's not okay to update * the head, and the old value of the head isn't empty... */ strbuf_addf(display, _("! %-*s %-*s -> %s (can't fetch in current branch)"), - TRANSPORT_SUMMARY_WIDTH, _("[rejected]"), + TRANSPORT_SUMMARY(_("[rejected]")), REFCOL_WIDTH, remote, pretty_ref); return 1; } - if (!is_null_sha1(ref->old_sha1) && - !prefixcmp(ref->name, "refs/tags/")) { + if (!is_null_oid(&ref->old_oid) && + starts_with(ref->name, "refs/tags/")) { int r; r = s_update_ref("updating tag", ref, 0); strbuf_addf(display, "%c %-*s %-*s -> %s%s", r ? '!' : '-', - TRANSPORT_SUMMARY_WIDTH, _("[tag update]"), + TRANSPORT_SUMMARY(_("[tag update]")), REFCOL_WIDTH, remote, pretty_ref, r ? _(" (unable to update local ref)") : ""); return r; } - current = lookup_commit_reference_gently(ref->old_sha1, 1); - updated = lookup_commit_reference_gently(ref->new_sha1, 1); + current = lookup_commit_reference_gently(ref->old_oid.hash, 1); + updated = lookup_commit_reference_gently(ref->new_oid.hash, 1); if (!current || !updated) { const char *msg; const char *what; int r; - if (!strncmp(ref->name, "refs/tags/", 10)) { + /* + * Nicely describe the new ref we're fetching. + * Base this on the remote's ref name, as it's + * more likely to follow a standard layout. + */ + const char *name = remote_ref ? remote_ref->name : ""; + if (starts_with(name, "refs/tags/")) { msg = "storing tag"; what = _("[new tag]"); - } - else { + } else if (starts_with(name, "refs/heads/")) { msg = "storing head"; what = _("[new branch]"); - if ((recurse_submodules != RECURSE_SUBMODULES_OFF) && - (recurse_submodules != RECURSE_SUBMODULES_ON)) - check_for_new_submodule_commits(ref->new_sha1); + } else { + msg = "storing ref"; + what = _("[new ref]"); } + if ((recurse_submodules != RECURSE_SUBMODULES_OFF) && + (recurse_submodules != RECURSE_SUBMODULES_ON)) + check_for_new_submodule_commits(ref->new_oid.hash); r = s_update_ref(msg, ref, 0); strbuf_addf(display, "%c %-*s %-*s -> %s%s", r ? '!' : '*', - TRANSPORT_SUMMARY_WIDTH, what, + TRANSPORT_SUMMARY(what), REFCOL_WIDTH, remote, pretty_ref, r ? _(" (unable to update local ref)") : ""); return r; } - if (in_merge_bases(current, &updated, 1)) { - char quickref[83]; + if (in_merge_bases(current, updated)) { + struct strbuf quickref = STRBUF_INIT; int r; - strcpy(quickref, find_unique_abbrev(current->object.sha1, DEFAULT_ABBREV)); - strcat(quickref, ".."); - strcat(quickref, find_unique_abbrev(ref->new_sha1, DEFAULT_ABBREV)); + strbuf_add_unique_abbrev(&quickref, current->object.oid.hash, DEFAULT_ABBREV); + strbuf_addstr(&quickref, ".."); + strbuf_add_unique_abbrev(&quickref, ref->new_oid.hash, DEFAULT_ABBREV); if ((recurse_submodules != RECURSE_SUBMODULES_OFF) && (recurse_submodules != RECURSE_SUBMODULES_ON)) - check_for_new_submodule_commits(ref->new_sha1); + check_for_new_submodule_commits(ref->new_oid.hash); r = s_update_ref("fast-forward", ref, 1); strbuf_addf(display, "%c %-*s %-*s -> %s%s", r ? '!' : ' ', - TRANSPORT_SUMMARY_WIDTH, quickref, + TRANSPORT_SUMMARY_WIDTH, quickref.buf, REFCOL_WIDTH, remote, pretty_ref, r ? _(" (unable to update local ref)") : ""); + strbuf_release(&quickref); return r; } else if (force || ref->force) { - char quickref[84]; + struct strbuf quickref = STRBUF_INIT; int r; - strcpy(quickref, find_unique_abbrev(current->object.sha1, DEFAULT_ABBREV)); - strcat(quickref, "..."); - strcat(quickref, find_unique_abbrev(ref->new_sha1, DEFAULT_ABBREV)); + strbuf_add_unique_abbrev(&quickref, current->object.oid.hash, DEFAULT_ABBREV); + strbuf_addstr(&quickref, "..."); + strbuf_add_unique_abbrev(&quickref, ref->new_oid.hash, DEFAULT_ABBREV); if ((recurse_submodules != RECURSE_SUBMODULES_OFF) && (recurse_submodules != RECURSE_SUBMODULES_ON)) - check_for_new_submodule_commits(ref->new_sha1); + check_for_new_submodule_commits(ref->new_oid.hash); r = s_update_ref("forced-update", ref, 1); strbuf_addf(display, "%c %-*s %-*s -> %s (%s)", r ? '!' : '+', - TRANSPORT_SUMMARY_WIDTH, quickref, + TRANSPORT_SUMMARY_WIDTH, quickref.buf, REFCOL_WIDTH, remote, pretty_ref, r ? _("unable to update local ref") : _("forced update")); + strbuf_release(&quickref); return r; } else { strbuf_addf(display, "! %-*s %-*s -> %s %s", - TRANSPORT_SUMMARY_WIDTH, _("[rejected]"), + TRANSPORT_SUMMARY(_("[rejected]")), REFCOL_WIDTH, remote, pretty_ref, _("(non-fast-forward)")); return 1; @@ -360,10 +583,12 @@ static int iterate_ref_map(void *cb_data, unsigned char sha1[20]) struct ref **rm = cb_data; struct ref *ref = *rm; + while (ref && ref->status == REF_STATUS_REJECT_SHALLOW) + ref = ref->next; if (!ref) return -1; /* end of the list */ *rm = ref->next; - hashcpy(sha1, ref->old_sha1); + hashcpy(sha1, ref->old_oid.hash); return 0; } @@ -372,15 +597,17 @@ static int store_updated_refs(const char *raw_url, const char *remote_name, { FILE *fp; struct commit *commit; - int url_len, i, shown_url = 0, rc = 0; + int url_len, i, rc = 0; struct strbuf note = STRBUF_INIT; const char *what, *kind; struct ref *rm; - char *url, *filename = dry_run ? "/dev/null" : git_path("FETCH_HEAD"); + char *url; + const char *filename = dry_run ? "/dev/null" : git_path_fetch_head(); + int want_status; fp = fopen(filename, "a"); if (!fp) - return error(_("cannot open %s: %s\n"), filename, strerror(errno)); + return error_errno(_("cannot open %s"), filename); if (raw_url) url = transport_anonymize_url(raw_url); @@ -393,84 +620,114 @@ static int store_updated_refs(const char *raw_url, const char *remote_name, goto abort; } - for (rm = ref_map; rm; rm = rm->next) { - struct ref *ref = NULL; + /* + * We do a pass for each fetch_head_status type in their enum order, so + * merged entries are written before not-for-merge. That lets readers + * use FETCH_HEAD as a refname to refer to the ref to be merged. + */ + for (want_status = FETCH_HEAD_MERGE; + want_status <= FETCH_HEAD_IGNORE; + want_status++) { + for (rm = ref_map; rm; rm = rm->next) { + struct ref *ref = NULL; + const char *merge_status_marker = ""; + + if (rm->status == REF_STATUS_REJECT_SHALLOW) { + if (want_status == FETCH_HEAD_MERGE) + warning(_("reject %s because shallow roots are not allowed to be updated"), + rm->peer_ref ? rm->peer_ref->name : rm->name); + continue; + } - if (rm->peer_ref) { - ref = xcalloc(1, sizeof(*ref) + strlen(rm->peer_ref->name) + 1); - strcpy(ref->name, rm->peer_ref->name); - hashcpy(ref->old_sha1, rm->peer_ref->old_sha1); - hashcpy(ref->new_sha1, rm->old_sha1); - ref->force = rm->peer_ref->force; - } + commit = lookup_commit_reference_gently(rm->old_oid.hash, 1); + if (!commit) + rm->fetch_head_status = FETCH_HEAD_NOT_FOR_MERGE; - commit = lookup_commit_reference_gently(rm->old_sha1, 1); - if (!commit) - rm->merge = 0; + if (rm->fetch_head_status != want_status) + continue; - if (!strcmp(rm->name, "HEAD")) { - kind = ""; - what = ""; - } - else if (!prefixcmp(rm->name, "refs/heads/")) { - kind = "branch"; - what = rm->name + 11; - } - else if (!prefixcmp(rm->name, "refs/tags/")) { - kind = "tag"; - what = rm->name + 10; - } - else if (!prefixcmp(rm->name, "refs/remotes/")) { - kind = "remote-tracking branch"; - what = rm->name + 13; - } - else { - kind = ""; - what = rm->name; - } + if (rm->peer_ref) { + ref = alloc_ref(rm->peer_ref->name); + oidcpy(&ref->old_oid, &rm->peer_ref->old_oid); + oidcpy(&ref->new_oid, &rm->old_oid); + ref->force = rm->peer_ref->force; + } - url_len = strlen(url); - for (i = url_len - 1; url[i] == '/' && 0 <= i; i--) - ; - url_len = i + 1; - if (4 < i && !strncmp(".git", url + i - 3, 4)) - url_len = i - 3; - - strbuf_reset(¬e); - if (*what) { - if (*kind) - strbuf_addf(¬e, "%s ", kind); - strbuf_addf(¬e, "'%s' of ", what); - } - fprintf(fp, "%s\t%s\t%s", - sha1_to_hex(rm->old_sha1), - rm->merge ? "" : "not-for-merge", - note.buf); - for (i = 0; i < url_len; ++i) - if ('\n' == url[i]) - fputs("\\n", fp); - else - fputc(url[i], fp); - fputc('\n', fp); - - strbuf_reset(¬e); - if (ref) { - rc |= update_local_ref(ref, what, ¬e); - free(ref); - } else - strbuf_addf(¬e, "* %-*s %-*s -> FETCH_HEAD", - TRANSPORT_SUMMARY_WIDTH, - *kind ? kind : "branch", - REFCOL_WIDTH, - *what ? what : "HEAD"); - if (note.len) { - if (verbosity >= 0 && !shown_url) { - fprintf(stderr, _("From %.*s\n"), - url_len, url); - shown_url = 1; + + if (!strcmp(rm->name, "HEAD")) { + kind = ""; + what = ""; + } + else if (starts_with(rm->name, "refs/heads/")) { + kind = "branch"; + what = rm->name + 11; + } + else if (starts_with(rm->name, "refs/tags/")) { + kind = "tag"; + what = rm->name + 10; + } + else if (starts_with(rm->name, "refs/remotes/")) { + kind = "remote-tracking branch"; + what = rm->name + 13; + } + else { + kind = ""; + what = rm->name; + } + + url_len = strlen(url); + for (i = url_len - 1; url[i] == '/' && 0 <= i; i--) + ; + url_len = i + 1; + if (4 < i && !strncmp(".git", url + i - 3, 4)) + url_len = i - 3; + + strbuf_reset(¬e); + if (*what) { + if (*kind) + strbuf_addf(¬e, "%s ", kind); + strbuf_addf(¬e, "'%s' of ", what); + } + switch (rm->fetch_head_status) { + case FETCH_HEAD_NOT_FOR_MERGE: + merge_status_marker = "not-for-merge"; + /* fall-through */ + case FETCH_HEAD_MERGE: + fprintf(fp, "%s\t%s\t%s", + oid_to_hex(&rm->old_oid), + merge_status_marker, + note.buf); + for (i = 0; i < url_len; ++i) + if ('\n' == url[i]) + fputs("\\n", fp); + else + fputc(url[i], fp); + fputc('\n', fp); + break; + default: + /* do not write anything to FETCH_HEAD */ + break; + } + + strbuf_reset(¬e); + if (ref) { + rc |= update_local_ref(ref, what, rm, ¬e); + free(ref); + } else + strbuf_addf(¬e, "* %-*s %-*s -> FETCH_HEAD", + TRANSPORT_SUMMARY_WIDTH, + *kind ? kind : "branch", + REFCOL_WIDTH, + *what ? what : "HEAD"); + if (note.len) { + if (verbosity >= 0 && !shown_url) { + fprintf(stderr, _("From %.*s\n"), + url_len, url); + shown_url = 1; + } + if (verbosity >= 0) + fprintf(stderr, " %s\n", note.buf); } - if (verbosity >= 0) - fprintf(stderr, " %s\n", note.buf); } } @@ -520,125 +777,55 @@ static int fetch_refs(struct transport *transport, struct ref *ref_map) return ret; } -static int prune_refs(struct refspec *refs, int ref_count, struct ref *ref_map) +static int prune_refs(struct refspec *refs, int ref_count, struct ref *ref_map, + const char *raw_url) { - int result = 0; + int url_len, i, result = 0; struct ref *ref, *stale_refs = get_stale_heads(refs, ref_count, ref_map); + char *url; const char *dangling_msg = dry_run - ? _(" (%s will become dangling)\n") - : _(" (%s has become dangling)\n"); - - for (ref = stale_refs; ref; ref = ref->next) { - if (!dry_run) - result |= delete_ref(ref->name, NULL, 0); - if (verbosity >= 0) { - fprintf(stderr, " x %-*s %-*s -> %s\n", - TRANSPORT_SUMMARY_WIDTH, _("[deleted]"), - REFCOL_WIDTH, _("(none)"), prettify_refname(ref->name)); - warn_dangling_symref(stderr, dangling_msg, ref->name); - } - } - free_refs(stale_refs); - return result; -} + ? _(" (%s will become dangling)") + : _(" (%s has become dangling)"); -static int add_existing(const char *refname, const unsigned char *sha1, - int flag, void *cbdata) -{ - struct string_list *list = (struct string_list *)cbdata; - struct string_list_item *item = string_list_insert(list, refname); - item->util = (void *)sha1; - return 0; -} + if (raw_url) + url = transport_anonymize_url(raw_url); + else + url = xstrdup("foreign"); -static int will_fetch(struct ref **head, const unsigned char *sha1) -{ - struct ref *rm = *head; - while (rm) { - if (!hashcmp(rm->old_sha1, sha1)) - return 1; - rm = rm->next; - } - return 0; -} + url_len = strlen(url); + for (i = url_len - 1; url[i] == '/' && 0 <= i; i--) + ; -static void find_non_local_tags(struct transport *transport, - struct ref **head, - struct ref ***tail) -{ - struct string_list existing_refs = STRING_LIST_INIT_NODUP; - struct string_list remote_refs = STRING_LIST_INIT_NODUP; - const struct ref *ref; - struct string_list_item *item = NULL; + url_len = i + 1; + if (4 < i && !strncmp(".git", url + i - 3, 4)) + url_len = i - 3; - for_each_ref(add_existing, &existing_refs); - for (ref = transport_get_remote_refs(transport); ref; ref = ref->next) { - if (prefixcmp(ref->name, "refs/tags")) - continue; + if (!dry_run) { + struct string_list refnames = STRING_LIST_INIT_NODUP; - /* - * The peeled ref always follows the matching base - * ref, so if we see a peeled ref that we don't want - * to fetch then we can mark the ref entry in the list - * as one to ignore by setting util to NULL. - */ - if (!suffixcmp(ref->name, "^{}")) { - if (item && !has_sha1_file(ref->old_sha1) && - !will_fetch(head, ref->old_sha1) && - !has_sha1_file(item->util) && - !will_fetch(head, item->util)) - item->util = NULL; - item = NULL; - continue; - } - - /* - * If item is non-NULL here, then we previously saw a - * ref not followed by a peeled reference, so we need - * to check if it is a lightweight tag that we want to - * fetch. - */ - if (item && !has_sha1_file(item->util) && - !will_fetch(head, item->util)) - item->util = NULL; - - item = NULL; - - /* skip duplicates and refs that we already have */ - if (string_list_has_string(&remote_refs, ref->name) || - string_list_has_string(&existing_refs, ref->name)) - continue; + for (ref = stale_refs; ref; ref = ref->next) + string_list_append(&refnames, ref->name); - item = string_list_insert(&remote_refs, ref->name); - item->util = (void *)ref->old_sha1; + result = delete_refs(&refnames); + string_list_clear(&refnames, 0); } - string_list_clear(&existing_refs, 0); - /* - * We may have a final lightweight tag that needs to be - * checked to see if it needs fetching. - */ - if (item && !has_sha1_file(item->util) && - !will_fetch(head, item->util)) - item->util = NULL; - - /* - * For all the tags in the remote_refs string list, - * add them to the list of refs to be fetched - */ - for_each_string_list_item(item, &remote_refs) { - /* Unless we have already decided to ignore this item... */ - if (item->util) - { - struct ref *rm = alloc_ref(item->string); - rm->peer_ref = alloc_ref(item->string); - hashcpy(rm->old_sha1, item->util); - **tail = rm; - *tail = &rm->next; + if (verbosity >= 0) { + for (ref = stale_refs; ref; ref = ref->next) { + if (!shown_url) { + fprintf(stderr, _("From %.*s\n"), url_len, url); + shown_url = 1; + } + fprintf(stderr, " x %-*s %-*s -> %s\n", + TRANSPORT_SUMMARY(_("[deleted]")), + REFCOL_WIDTH, _("(none)"), prettify_refname(ref->name)); + warn_dangling_symref(stderr, dangling_msg, ref->name); } } - string_list_clear(&remote_refs, 0); + free(url); + free_refs(stale_refs); + return result; } static void check_not_current_branch(struct ref *ref_map) @@ -657,23 +844,68 @@ static void check_not_current_branch(struct ref *ref_map) static int truncate_fetch_head(void) { - char *filename = git_path("FETCH_HEAD"); - FILE *fp = fopen(filename, "w"); + const char *filename = git_path_fetch_head(); + FILE *fp = fopen_for_writing(filename); if (!fp) - return error(_("cannot open %s: %s\n"), filename, strerror(errno)); + return error_errno(_("cannot open %s"), filename); fclose(fp); return 0; } +static void set_option(struct transport *transport, const char *name, const char *value) +{ + int r = transport_set_option(transport, name, value); + if (r < 0) + die(_("Option \"%s\" value \"%s\" is not valid for %s"), + name, value, transport->url); + if (r > 0) + warning(_("Option \"%s\" is ignored for %s\n"), + name, transport->url); +} + +static struct transport *prepare_transport(struct remote *remote) +{ + struct transport *transport; + transport = transport_get(remote, NULL); + transport_set_verbosity(transport, verbosity, progress); + transport->family = family; + if (upload_pack) + set_option(transport, TRANS_OPT_UPLOADPACK, upload_pack); + if (keep) + set_option(transport, TRANS_OPT_KEEP, "yes"); + if (depth) + set_option(transport, TRANS_OPT_DEPTH, depth); + if (update_shallow) + set_option(transport, TRANS_OPT_UPDATE_SHALLOW, "yes"); + return transport; +} + +static void backfill_tags(struct transport *transport, struct ref *ref_map) +{ + if (transport->cannot_reuse) { + gsecondary = prepare_transport(transport->remote); + transport = gsecondary; + } + + transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, NULL); + transport_set_option(transport, TRANS_OPT_DEPTH, "0"); + fetch_refs(transport, ref_map); + + if (gsecondary) { + transport_disconnect(gsecondary); + gsecondary = NULL; + } +} + static int do_fetch(struct transport *transport, struct refspec *refs, int ref_count) { - struct string_list existing_refs = STRING_LIST_INIT_NODUP; - struct string_list_item *peer_item = NULL; + struct string_list existing_refs = STRING_LIST_INIT_DUP; struct ref *ref_map; struct ref *rm; int autotags = (transport->remote->fetch_tags == 1); + int retcode = 0; for_each_ref(add_existing, &existing_refs); @@ -689,9 +921,9 @@ static int do_fetch(struct transport *transport, /* if not appending, truncate FETCH_HEAD */ if (!append && !dry_run) { - int errcode = truncate_fetch_head(); - if (errcode) - return errcode; + retcode = truncate_fetch_head(); + if (retcode) + goto cleanup; } ref_map = get_ref_map(transport, refs, ref_count, tags, &autotags); @@ -700,45 +932,38 @@ static int do_fetch(struct transport *transport, for (rm = ref_map; rm; rm = rm->next) { if (rm->peer_ref) { - peer_item = string_list_lookup(&existing_refs, - rm->peer_ref->name); - if (peer_item) - hashcpy(rm->peer_ref->old_sha1, - peer_item->util); + struct string_list_item *peer_item = + string_list_lookup(&existing_refs, + rm->peer_ref->name); + if (peer_item) { + struct object_id *old_oid = peer_item->util; + oidcpy(&rm->peer_ref->old_oid, old_oid); + } } } if (tags == TAGS_DEFAULT && autotags) transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, "1"); - if (fetch_refs(transport, ref_map)) { - free_refs(ref_map); - return 1; - } if (prune) { - /* If --tags was specified, pretend the user gave us the canonical tags refspec */ - if (tags == TAGS_SET) { - const char *tags_str = "refs/tags/*:refs/tags/*"; - struct refspec *tags_refspec, *refspec; - - /* Copy the refspec and add the tags to it */ - refspec = xcalloc(ref_count + 1, sizeof(struct refspec)); - tags_refspec = parse_fetch_refspec(1, &tags_str); - memcpy(refspec, refs, ref_count * sizeof(struct refspec)); - memcpy(&refspec[ref_count], tags_refspec, sizeof(struct refspec)); - ref_count++; - - prune_refs(refspec, ref_count, ref_map); - - ref_count--; - /* The rest of the strings belong to fetch_one */ - free_refspec(1, tags_refspec); - free(refspec); - } else if (ref_count) { - prune_refs(refs, ref_count, ref_map); + /* + * We only prune based on refspecs specified + * explicitly (via command line or configuration); we + * don't care whether --tags was specified. + */ + if (ref_count) { + prune_refs(refs, ref_count, ref_map, transport->url); } else { - prune_refs(transport->remote->fetch, transport->remote->fetch_refspec_nr, ref_map); + prune_refs(transport->remote->fetch, + transport->remote->fetch_refspec_nr, + ref_map, + transport->url); } } + if (fetch_refs(transport, ref_map)) { + free_refs(ref_map); + retcode = 1; + goto cleanup; + } free_refs(ref_map); /* if neither --no-tags nor --tags was specified, do automated tag @@ -747,26 +972,14 @@ static int do_fetch(struct transport *transport, struct ref **tail = &ref_map; ref_map = NULL; find_non_local_tags(transport, &ref_map, &tail); - if (ref_map) { - transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, NULL); - transport_set_option(transport, TRANS_OPT_DEPTH, "0"); - fetch_refs(transport, ref_map); - } + if (ref_map) + backfill_tags(transport, ref_map); free_refs(ref_map); } - return 0; -} - -static void set_option(const char *name, const char *value) -{ - int r = transport_set_option(transport, name, value); - if (r < 0) - die(_("Option \"%s\" value \"%s\" is not valid for %s"), - name, value, transport->url); - if (r > 0) - warning(_("Option \"%s\" is ignored for %s\n"), - name, transport->url); + cleanup: + string_list_clear(&existing_refs, 1); + return retcode; } static int get_one_remote_for_fetch(struct remote *remote, void *priv) @@ -786,17 +999,15 @@ static int get_remote_group(const char *key, const char *value, void *priv) { struct remote_group_data *g = priv; - if (!prefixcmp(key, "remotes.") && - !strcmp(key + 8, g->name)) { + if (skip_prefix(key, "remotes.", &key) && !strcmp(key, g->name)) { /* split list by white space */ - int space = strcspn(value, " \t\n"); while (*value) { - if (space > 1) { - string_list_append(g->list, - xstrndup(value, space)); - } - value += space + (value[space] != '\0'); - space = strcspn(value, " \t\n"); + size_t wordlen = strcspn(value, " \t\n"); + + if (wordlen >= 1) + string_list_append_nodup(g->list, + xstrndup(value, wordlen)); + value += wordlen + (value[wordlen] != '\0'); } } @@ -811,47 +1022,47 @@ static int add_remote_or_group(const char *name, struct string_list *list) git_config(get_remote_group, &g); if (list->nr == prev_nr) { - struct remote *remote; - if (!remote_is_configured(name)) + struct remote *remote = remote_get(name); + if (!remote_is_configured(remote)) return 0; - remote = remote_get(name); string_list_append(list, remote->name); } return 1; } -static void add_options_to_argv(int *argc, const char **argv) +static void add_options_to_argv(struct argv_array *argv) { if (dry_run) - argv[(*argc)++] = "--dry-run"; - if (prune) - argv[(*argc)++] = "--prune"; + argv_array_push(argv, "--dry-run"); + if (prune != -1) + argv_array_push(argv, prune ? "--prune" : "--no-prune"); if (update_head_ok) - argv[(*argc)++] = "--update-head-ok"; + argv_array_push(argv, "--update-head-ok"); if (force) - argv[(*argc)++] = "--force"; + argv_array_push(argv, "--force"); if (keep) - argv[(*argc)++] = "--keep"; + argv_array_push(argv, "--keep"); if (recurse_submodules == RECURSE_SUBMODULES_ON) - argv[(*argc)++] = "--recurse-submodules"; + argv_array_push(argv, "--recurse-submodules"); else if (recurse_submodules == RECURSE_SUBMODULES_ON_DEMAND) - argv[(*argc)++] = "--recurse-submodules=on-demand"; + argv_array_push(argv, "--recurse-submodules=on-demand"); + if (tags == TAGS_SET) + argv_array_push(argv, "--tags"); + else if (tags == TAGS_UNSET) + argv_array_push(argv, "--no-tags"); if (verbosity >= 2) - argv[(*argc)++] = "-v"; + argv_array_push(argv, "-v"); if (verbosity >= 1) - argv[(*argc)++] = "-v"; + argv_array_push(argv, "-v"); else if (verbosity < 0) - argv[(*argc)++] = "-q"; + argv_array_push(argv, "-q"); } static int fetch_multiple(struct string_list *list) { int i, result = 0; - const char *argv[12] = { "fetch", "--append" }; - int argc = 2; - - add_options_to_argv(&argc, argv); + struct argv_array argv = ARGV_ARRAY_INIT; if (!append && !dry_run) { int errcode = truncate_fetch_head(); @@ -859,24 +1070,27 @@ static int fetch_multiple(struct string_list *list) return errcode; } + argv_array_pushl(&argv, "fetch", "--append", NULL); + add_options_to_argv(&argv); + for (i = 0; i < list->nr; i++) { const char *name = list->items[i].string; - argv[argc] = name; - argv[argc + 1] = NULL; + argv_array_push(&argv, name); if (verbosity >= 0) printf(_("Fetching %s\n"), name); - if (run_command_v_opt(argv, RUN_GIT_CMD)) { + if (run_command_v_opt(argv.argv, RUN_GIT_CMD)) { error(_("Could not fetch %s"), name); result = 1; } + argv_array_pop(&argv); } + argv_array_clear(&argv); return result; } static int fetch_one(struct remote *remote, int argc, const char **argv) { - int i; static const char **refs = NULL; struct refspec *refspec; int ref_nr = 0; @@ -886,30 +1100,29 @@ static int fetch_one(struct remote *remote, int argc, const char **argv) die(_("No remote repository specified. Please, specify either a URL or a\n" "remote name from which new revisions should be fetched.")); - transport = transport_get(remote, NULL); - transport_set_verbosity(transport, verbosity, progress); - if (upload_pack) - set_option(TRANS_OPT_UPLOADPACK, upload_pack); - if (keep) - set_option(TRANS_OPT_KEEP, "yes"); - if (depth) - set_option(TRANS_OPT_DEPTH, depth); + gtransport = prepare_transport(remote); + + if (prune < 0) { + /* no command line request */ + if (0 <= gtransport->remote->prune) + prune = gtransport->remote->prune; + else if (0 <= fetch_prune_config) + prune = fetch_prune_config; + else + prune = PRUNE_BY_DEFAULT; + } if (argc > 0) { int j = 0; - refs = xcalloc(argc + 1, sizeof(const char *)); + int i; + refs = xcalloc(st_add(argc, 1), sizeof(const char *)); for (i = 0; i < argc; i++) { if (!strcmp(argv[i], "tag")) { - char *ref; i++; if (i >= argc) die(_("You need to specify a tag name.")); - ref = xmalloc(strlen(argv[i]) * 2 + 22); - strcpy(ref, "refs/tags/"); - strcat(ref, argv[i]); - strcat(ref, ":refs/tags/"); - strcat(ref, argv[i]); - refs[j++] = ref; + refs[j++] = xstrfmt("refs/tags/%s:refs/tags/%s", + argv[i], argv[i]); } else refs[j++] = argv[i]; } @@ -920,19 +1133,20 @@ static int fetch_one(struct remote *remote, int argc, const char **argv) sigchain_push_common(unlock_pack_on_signal); atexit(unlock_pack); refspec = parse_fetch_refspec(ref_nr, refs); - exit_code = do_fetch(transport, refspec, ref_nr); + exit_code = do_fetch(gtransport, refspec, ref_nr); free_refspec(ref_nr, refspec); - transport_disconnect(transport); - transport = NULL; + transport_disconnect(gtransport); + gtransport = NULL; return exit_code; } int cmd_fetch(int argc, const char **argv, const char *prefix) { int i; - struct string_list list = STRING_LIST_INIT_NODUP; + struct string_list list = STRING_LIST_INIT_DUP; struct remote *remote; int result = 0; + struct argv_array argv_gc_auto = ARGV_ARRAY_INIT; packet_trace_identity("fetch"); @@ -941,9 +1155,24 @@ int cmd_fetch(int argc, const char **argv, const char *prefix) for (i = 1; i < argc; i++) strbuf_addf(&default_rla, " %s", argv[i]); + git_config(git_fetch_config, NULL); + argc = parse_options(argc, argv, prefix, builtin_fetch_options, builtin_fetch_usage, 0); + if (unshallow) { + if (depth) + die(_("--depth and --unshallow cannot be used together")); + else if (!is_repository_shallow()) + die(_("--unshallow on a complete repository does not make sense")); + else + depth = xstrfmt("%d", INFINITE_DEPTH); + } + + /* no need to be strict, transport_set_option() will validate it again */ + if (depth && atoi(depth) < 1) + die(_("depth %s is not a positive number"), depth); + if (recurse_submodules != RECURSE_SUBMODULES_OFF) { if (recurse_submodules_default) { int arg = parse_fetch_recurse_submodules_arg("--recurse-submodules-default", recurse_submodules_default); @@ -986,18 +1215,26 @@ int cmd_fetch(int argc, const char **argv, const char *prefix) } if (!result && (recurse_submodules != RECURSE_SUBMODULES_OFF)) { - const char *options[10]; - int num_options = 0; - add_options_to_argv(&num_options, options); - result = fetch_populated_submodules(num_options, options, + struct argv_array options = ARGV_ARRAY_INIT; + + add_options_to_argv(&options); + result = fetch_populated_submodules(&options, submodule_prefix, recurse_submodules, - verbosity < 0); + verbosity < 0, + max_children); + argv_array_clear(&options); } - /* All names were strdup()ed or strndup()ed */ - list.strdup_strings = 1; string_list_clear(&list, 0); + close_all_packs(); + + argv_array_pushl(&argv_gc_auto, "gc", "--auto", NULL); + if (verbosity < 0) + argv_array_push(&argv_gc_auto, "--quiet"); + run_command_v_opt(argv_gc_auto.argv, RUN_GIT_CMD); + argv_array_clear(&argv_gc_auto); + return result; } diff --git a/builtin/fmt-merge-msg.c b/builtin/fmt-merge-msg.c index c81a7fef26..e5658c320e 100644 --- a/builtin/fmt-merge-msg.c +++ b/builtin/fmt-merge-msg.c @@ -1,5 +1,6 @@ #include "builtin.h" #include "cache.h" +#include "refs.h" #include "commit.h" #include "diff.h" #include "revision.h" @@ -10,7 +11,7 @@ #include "gpg-interface.h" static const char * const fmt_merge_msg_usage[] = { - "git fmt-merge-msg [-m <message>] [--log[=<n>]|--no-log] [--file <file>]", + N_("git fmt-merge-msg [-m <message>] [--log[=<n>] | --no-log] [--file <file>]"), NULL }; @@ -27,6 +28,8 @@ int fmt_merge_msg_config(const char *key, const char *value, void *cb) merge_log_config = DEFAULT_MERGE_LOG_LEN; } else if (!strcmp(key, "merge.branchdesc")) { use_branch_desc = git_config_bool(key, value); + } else { + return git_default_config(key, value, cb); } return 0; } @@ -53,32 +56,76 @@ static void init_src_data(struct src_data *data) static struct string_list srcs = STRING_LIST_INIT_DUP; static struct string_list origins = STRING_LIST_INIT_DUP; -static int handle_line(char *line) +struct merge_parents { + int alloc, nr; + struct merge_parent { + unsigned char given[20]; + unsigned char commit[20]; + unsigned char used; + } *item; +}; + +/* + * I know, I know, this is inefficient, but you won't be pulling and merging + * hundreds of heads at a time anyway. + */ +static struct merge_parent *find_merge_parent(struct merge_parents *table, + unsigned char *given, + unsigned char *commit) +{ + int i; + for (i = 0; i < table->nr; i++) { + if (given && hashcmp(table->item[i].given, given)) + continue; + if (commit && hashcmp(table->item[i].commit, commit)) + continue; + return &table->item[i]; + } + return NULL; +} + +static void add_merge_parent(struct merge_parents *table, + unsigned char *given, + unsigned char *commit) +{ + if (table->nr && find_merge_parent(table, given, commit)) + return; + ALLOC_GROW(table->item, table->nr + 1, table->alloc); + hashcpy(table->item[table->nr].given, given); + hashcpy(table->item[table->nr].commit, commit); + table->item[table->nr].used = 0; + table->nr++; +} + +static int handle_line(char *line, struct merge_parents *merge_parents) { int i, len = strlen(line); struct origin_data *origin_data; - char *src, *origin; + char *src; + const char *origin; struct src_data *src_data; struct string_list_item *item; int pulling_head = 0; + unsigned char sha1[20]; if (len < 43 || line[40] != '\t') return 1; - if (!prefixcmp(line + 41, "not-for-merge")) + if (starts_with(line + 41, "not-for-merge")) return 0; if (line[41] != '\t') return 2; - line[40] = 0; - origin_data = xcalloc(1, sizeof(struct origin_data)); - i = get_sha1(line, origin_data->sha1); - line[40] = '\t'; - if (i) { - free(origin_data); + i = get_sha1_hex(line, sha1); + if (i) return 3; - } + + if (!find_merge_parent(merge_parents, sha1, NULL)) + return 0; /* subsumed by other parents */ + + origin_data = xcalloc(1, sizeof(struct origin_data)); + hashcpy(origin_data->sha1, sha1); if (line[len - 1] == '\n') line[len - 1] = 0; @@ -110,17 +157,16 @@ static int handle_line(char *line) if (pulling_head) { origin = src; src_data->head_status |= 1; - } else if (!prefixcmp(line, "branch ")) { + } else if (starts_with(line, "branch ")) { origin_data->is_local_branch = 1; origin = line + 7; string_list_append(&src_data->branch, origin); src_data->head_status |= 2; - } else if (!prefixcmp(line, "tag ")) { + } else if (starts_with(line, "tag ")) { origin = line; string_list_append(&src_data->tag, origin + 4); src_data->head_status |= 2; - } else if (!prefixcmp(line, "remote-tracking branch ")) { - origin = line + strlen("remote-tracking branch "); + } else if (skip_prefix(line, "remote-tracking branch ", &origin)) { string_list_append(&src_data->r_branch, origin); src_data->head_status |= 2; } else { @@ -133,11 +179,8 @@ static int handle_line(char *line) int len = strlen(origin); if (origin[0] == '\'' && origin[len - 1] == '\'') origin = xmemdupz(origin + 1, len - 2); - } else { - char *new_origin = xmalloc(strlen(origin) + strlen(src) + 5); - sprintf(new_origin, "%s of %s", origin, src); - origin = new_origin; - } + } else + origin = xstrfmt("%s of %s", origin, src); if (strcmp(".", src)) origin_data->is_local_branch = 0; string_list_append(&origins, origin)->util = origin_data; @@ -174,32 +217,139 @@ static void add_branch_desc(struct strbuf *out, const char *name) strbuf_addf(out, " : %.*s", (int)(ep - bp), bp); bp = ep; } - if (out->buf[out->len - 1] != '\n') - strbuf_addch(out, '\n'); + strbuf_complete_line(out); } strbuf_release(&desc); } +#define util_as_integral(elem) ((intptr_t)((elem)->util)) + +static void record_person_from_buf(int which, struct string_list *people, + const char *buffer) +{ + char *name_buf, *name, *name_end; + struct string_list_item *elem; + const char *field; + + field = (which == 'a') ? "\nauthor " : "\ncommitter "; + name = strstr(buffer, field); + if (!name) + return; + name += strlen(field); + name_end = strchrnul(name, '<'); + if (*name_end) + name_end--; + while (isspace(*name_end) && name <= name_end) + name_end--; + if (name_end < name) + return; + name_buf = xmemdupz(name, name_end - name + 1); + + elem = string_list_lookup(people, name_buf); + if (!elem) { + elem = string_list_insert(people, name_buf); + elem->util = (void *)0; + } + elem->util = (void*)(util_as_integral(elem) + 1); + free(name_buf); +} + + +static void record_person(int which, struct string_list *people, + struct commit *commit) +{ + const char *buffer = get_commit_buffer(commit, NULL); + record_person_from_buf(which, people, buffer); + unuse_commit_buffer(commit, buffer); +} + +static int cmp_string_list_util_as_integral(const void *a_, const void *b_) +{ + const struct string_list_item *a = a_, *b = b_; + return util_as_integral(b) - util_as_integral(a); +} + +static void add_people_count(struct strbuf *out, struct string_list *people) +{ + if (people->nr == 1) + strbuf_addf(out, "%s", people->items[0].string); + else if (people->nr == 2) + strbuf_addf(out, "%s (%d) and %s (%d)", + people->items[0].string, + (int)util_as_integral(&people->items[0]), + people->items[1].string, + (int)util_as_integral(&people->items[1])); + else if (people->nr) + strbuf_addf(out, "%s (%d) and others", + people->items[0].string, + (int)util_as_integral(&people->items[0])); +} + +static void credit_people(struct strbuf *out, + struct string_list *them, + int kind) +{ + const char *label; + const char *me; + + if (kind == 'a') { + label = "By"; + me = git_author_info(IDENT_NO_DATE); + } else { + label = "Via"; + me = git_committer_info(IDENT_NO_DATE); + } + + if (!them->nr || + (them->nr == 1 && + me && + skip_prefix(me, them->items->string, &me) && + starts_with(me, " <"))) + return; + strbuf_addf(out, "\n%c %s ", comment_line_char, label); + add_people_count(out, them); +} + +static void add_people_info(struct strbuf *out, + struct string_list *authors, + struct string_list *committers) +{ + if (authors->nr) + qsort(authors->items, + authors->nr, sizeof(authors->items[0]), + cmp_string_list_util_as_integral); + if (committers->nr) + qsort(committers->items, + committers->nr, sizeof(committers->items[0]), + cmp_string_list_util_as_integral); + + credit_people(out, authors, 'a'); + credit_people(out, committers, 'c'); +} + static void shortlog(const char *name, struct origin_data *origin_data, struct commit *head, - struct rev_info *rev, int limit, + struct rev_info *rev, + struct fmt_merge_msg_opts *opts, struct strbuf *out) { int i, count = 0; struct commit *commit; struct object *branch; struct string_list subjects = STRING_LIST_INIT_DUP; + struct string_list authors = STRING_LIST_INIT_DUP; + struct string_list committers = STRING_LIST_INIT_DUP; int flags = UNINTERESTING | TREESAME | SEEN | SHOWN | ADDED; struct strbuf sb = STRBUF_INIT; const unsigned char *sha1 = origin_data->sha1; + int limit = opts->shortlog_len; branch = deref_tag(parse_object(sha1), sha1_to_hex(sha1), 40); if (!branch || branch->type != OBJ_COMMIT) return; setup_revisions(0, NULL, rev, NULL); - rev->ignore_merges = 1; add_pending_object(rev, branch, name); add_pending_object(rev, &head->object, "^HEAD"); head->object.flags |= UNINTERESTING; @@ -208,10 +358,17 @@ static void shortlog(const char *name, while ((commit = get_revision(rev)) != NULL) { struct pretty_print_context ctx = {0}; - /* ignore merges */ - if (commit->parents && commit->parents->next) + if (commit->parents && commit->parents->next) { + /* do not list a merge but count committer */ + if (opts->credit_people) + record_person('c', &committers, commit); continue; - + } + if (!count && opts->credit_people) + /* the 'tip' committer */ + record_person('c', &committers, commit); + if (opts->credit_people) + record_person('a', &authors, commit); count++; if (subjects.nr > limit) continue; @@ -221,11 +378,13 @@ static void shortlog(const char *name, if (!sb.len) string_list_append(&subjects, - sha1_to_hex(commit->object.sha1)); + oid_to_hex(&commit->object.oid)); else string_list_append(&subjects, strbuf_detach(&sb, NULL)); } + if (opts->credit_people) + add_people_info(out, &authors, &committers); if (count > limit) strbuf_addf(out, "\n* %s: (%d commits)\n", name, count); else @@ -246,6 +405,8 @@ static void shortlog(const char *name, rev->commits = NULL; rev->pending.nr = 0; + string_list_clear(&authors, 0); + string_list_clear(&committers, 0); string_list_clear(&subjects, 0); } @@ -313,7 +474,10 @@ static void fmt_tag_signature(struct strbuf *tagbuf, strbuf_add(tagbuf, tag_body, buf + len - tag_body); } strbuf_complete_line(tagbuf); - strbuf_add_lines(tagbuf, "# ", sig->buf, sig->len); + if (sig->len) { + strbuf_addch(tagbuf, '\n'); + strbuf_add_commented_lines(tagbuf, sig->buf, sig->len); + } } static void fmt_merge_msg_sigs(struct strbuf *out) @@ -334,7 +498,7 @@ static void fmt_merge_msg_sigs(struct strbuf *out) if (size == len) ; /* merely annotated */ - else if (verify_signed_buffer(buf, len, buf + len, size - len, &sig)) { + else if (verify_signed_buffer(buf, len, buf + len, size - len, &sig, NULL)) { if (!sig.len) strbuf_addstr(&sig, "gpg verification failed.\n"); } @@ -345,14 +509,18 @@ static void fmt_merge_msg_sigs(struct strbuf *out) } else { if (tag_number == 2) { struct strbuf tagline = STRBUF_INIT; - strbuf_addf(&tagline, "\n# %s\n", - origins.items[first_tag].string); + strbuf_addch(&tagline, '\n'); + strbuf_add_commented_lines(&tagline, + origins.items[first_tag].string, + strlen(origins.items[first_tag].string)); strbuf_insert(&tagbuf, 0, tagline.buf, tagline.len); strbuf_release(&tagline); } - strbuf_addf(&tagbuf, "\n# %s\n", - origins.items[i].string); + strbuf_addch(&tagbuf, '\n'); + strbuf_add_commented_lines(&tagbuf, + origins.items[i].string, + strlen(origins.items[i].string)); fmt_tag_signature(&tagbuf, &sig, buf, len); } strbuf_release(&sig); @@ -366,6 +534,64 @@ static void fmt_merge_msg_sigs(struct strbuf *out) strbuf_release(&tagbuf); } +static void find_merge_parents(struct merge_parents *result, + struct strbuf *in, unsigned char *head) +{ + struct commit_list *parents; + struct commit *head_commit; + int pos = 0, i, j; + + parents = NULL; + while (pos < in->len) { + int len; + char *p = in->buf + pos; + char *newline = strchr(p, '\n'); + unsigned char sha1[20]; + struct commit *parent; + struct object *obj; + + len = newline ? newline - p : strlen(p); + pos += len + !!newline; + + if (len < 43 || + get_sha1_hex(p, sha1) || + p[40] != '\t' || + p[41] != '\t') + continue; /* skip not-for-merge */ + /* + * Do not use get_merge_parent() here; we do not have + * "name" here and we do not want to contaminate its + * util field yet. + */ + obj = parse_object(sha1); + parent = (struct commit *)peel_to_type(NULL, 0, obj, OBJ_COMMIT); + if (!parent) + continue; + commit_list_insert(parent, &parents); + add_merge_parent(result, obj->oid.hash, parent->object.oid.hash); + } + head_commit = lookup_commit(head); + if (head_commit) + commit_list_insert(head_commit, &parents); + parents = reduce_heads(parents); + + while (parents) { + struct commit *cmit = pop_commit(&parents); + for (i = 0; i < result->nr; i++) + if (!hashcmp(result->item[i].commit, cmit->object.oid.hash)) + result->item[i].used = 1; + } + + for (i = j = 0; i < result->nr; i++) { + if (result->item[i].used) { + if (i != j) + result->item[j] = result->item[i]; + j++; + } + } + result->nr = j; +} + int fmt_merge_msg(struct strbuf *in, struct strbuf *out, struct fmt_merge_msg_opts *opts) { @@ -373,15 +599,20 @@ int fmt_merge_msg(struct strbuf *in, struct strbuf *out, unsigned char head_sha1[20]; const char *current_branch; void *current_branch_to_free; + struct merge_parents merge_parents; + + memset(&merge_parents, 0, sizeof(merge_parents)); /* get current branch */ current_branch = current_branch_to_free = - resolve_refdup("HEAD", head_sha1, 1, NULL); + resolve_refdup("HEAD", RESOLVE_REF_READING, head_sha1, NULL); if (!current_branch) die("No current branch"); - if (!prefixcmp(current_branch, "refs/heads/")) + if (starts_with(current_branch, "refs/heads/")) current_branch += 11; + find_merge_parents(&merge_parents, in, head_sha1); + /* get a line */ while (pos < in->len) { int len; @@ -392,7 +623,7 @@ int fmt_merge_msg(struct strbuf *in, struct strbuf *out, pos += len + !!newline; i++; p[len] = 0; - if (handle_line(p)) + if (handle_line(p, &merge_parents)) die ("Error in line %d: %.*s", i, len, p); } @@ -412,17 +643,17 @@ int fmt_merge_msg(struct strbuf *in, struct strbuf *out, rev.ignore_merges = 1; rev.limited = 1; - if (suffixcmp(out->buf, "\n")) - strbuf_addch(out, '\n'); + strbuf_complete_line(out); for (i = 0; i < origins.nr; i++) shortlog(origins.items[i].string, origins.items[i].util, - head, &rev, opts->shortlog_len, out); + head, &rev, opts, out); } strbuf_complete_line(out); free(current_branch_to_free); + free(merge_parents.item); return 0; } @@ -432,16 +663,16 @@ int cmd_fmt_merge_msg(int argc, const char **argv, const char *prefix) const char *message = NULL; int shortlog_len = -1; struct option options[] = { - { OPTION_INTEGER, 0, "log", &shortlog_len, "n", - "populate log with at most <n> entries from shortlog", + { OPTION_INTEGER, 0, "log", &shortlog_len, N_("n"), + N_("populate log with at most <n> entries from shortlog"), PARSE_OPT_OPTARG, NULL, DEFAULT_MERGE_LOG_LEN }, - { OPTION_INTEGER, 0, "summary", &shortlog_len, "n", - "alias for --log (deprecated)", + { OPTION_INTEGER, 0, "summary", &shortlog_len, N_("n"), + N_("alias for --log (deprecated)"), PARSE_OPT_OPTARG | PARSE_OPT_HIDDEN, NULL, DEFAULT_MERGE_LOG_LEN }, - OPT_STRING('m', "message", &message, "text", - "use <text> as start of message"), - OPT_FILENAME('F', "file", &inpath, "file to read from"), + OPT_STRING('m', "message", &message, N_("text"), + N_("use <text> as start of message")), + OPT_FILENAME('F', "file", &inpath, N_("file to read from")), OPT_END() }; @@ -472,6 +703,7 @@ int cmd_fmt_merge_msg(int argc, const char **argv, const char *prefix) memset(&opts, 0, sizeof(opts)); opts.add_title = !message; + opts.credit_people = 1; opts.shortlog_len = shortlog_len; ret = fmt_merge_msg(&input, &output, &opts); diff --git a/builtin/for-each-ref.c b/builtin/for-each-ref.c index b01d76a243..4e9f6c29bf 100644 --- a/builtin/for-each-ref.c +++ b/builtin/for-each-ref.c @@ -2,1009 +2,53 @@ #include "cache.h" #include "refs.h" #include "object.h" -#include "tag.h" -#include "commit.h" -#include "tree.h" -#include "blob.h" -#include "quote.h" #include "parse-options.h" -#include "remote.h" - -/* Quoting styles */ -#define QUOTE_NONE 0 -#define QUOTE_SHELL 1 -#define QUOTE_PERL 2 -#define QUOTE_PYTHON 4 -#define QUOTE_TCL 8 - -typedef enum { FIELD_STR, FIELD_ULONG, FIELD_TIME } cmp_type; - -struct atom_value { - const char *s; - unsigned long ul; /* used for sorting when not FIELD_STR */ -}; - -struct ref_sort { - struct ref_sort *next; - int atom; /* index into used_atom array */ - unsigned reverse : 1; -}; - -struct refinfo { - char *refname; - unsigned char objectname[20]; - int flag; - const char *symref; - struct atom_value *value; -}; - -static struct { - const char *name; - cmp_type cmp_type; -} valid_atom[] = { - { "refname" }, - { "objecttype" }, - { "objectsize", FIELD_ULONG }, - { "objectname" }, - { "tree" }, - { "parent" }, - { "numparent", FIELD_ULONG }, - { "object" }, - { "type" }, - { "tag" }, - { "author" }, - { "authorname" }, - { "authoremail" }, - { "authordate", FIELD_TIME }, - { "committer" }, - { "committername" }, - { "committeremail" }, - { "committerdate", FIELD_TIME }, - { "tagger" }, - { "taggername" }, - { "taggeremail" }, - { "taggerdate", FIELD_TIME }, - { "creator" }, - { "creatordate", FIELD_TIME }, - { "subject" }, - { "body" }, - { "contents" }, - { "contents:subject" }, - { "contents:body" }, - { "contents:signature" }, - { "upstream" }, - { "symref" }, - { "flag" }, -}; - -/* - * An atom is a valid field atom listed above, possibly prefixed with - * a "*" to denote deref_tag(). - * - * We parse given format string and sort specifiers, and make a list - * of properties that we need to extract out of objects. refinfo - * structure will hold an array of values extracted that can be - * indexed with the "atom number", which is an index into this - * array. - */ -static const char **used_atom; -static cmp_type *used_atom_type; -static int used_atom_cnt, sort_atom_limit, need_tagged, need_symref; - -/* - * Used to parse format string and sort specifiers - */ -static int parse_atom(const char *atom, const char *ep) -{ - const char *sp; - int i, at; - - sp = atom; - if (*sp == '*' && sp < ep) - sp++; /* deref */ - if (ep <= sp) - die("malformed field name: %.*s", (int)(ep-atom), atom); - - /* Do we have the atom already used elsewhere? */ - for (i = 0; i < used_atom_cnt; i++) { - int len = strlen(used_atom[i]); - if (len == ep - atom && !memcmp(used_atom[i], atom, len)) - return i; - } - - /* Is the atom a valid one? */ - for (i = 0; i < ARRAY_SIZE(valid_atom); i++) { - int len = strlen(valid_atom[i].name); - /* - * If the atom name has a colon, strip it and everything after - * it off - it specifies the format for this entry, and - * shouldn't be used for checking against the valid_atom - * table. - */ - const char *formatp = strchr(sp, ':'); - if (!formatp || ep < formatp) - formatp = ep; - if (len == formatp - sp && !memcmp(valid_atom[i].name, sp, len)) - break; - } - - if (ARRAY_SIZE(valid_atom) <= i) - die("unknown field name: %.*s", (int)(ep-atom), atom); - - /* Add it in, including the deref prefix */ - at = used_atom_cnt; - used_atom_cnt++; - used_atom = xrealloc(used_atom, - (sizeof *used_atom) * used_atom_cnt); - used_atom_type = xrealloc(used_atom_type, - (sizeof(*used_atom_type) * used_atom_cnt)); - used_atom[at] = xmemdupz(atom, ep - atom); - used_atom_type[at] = valid_atom[i].cmp_type; - if (*atom == '*') - need_tagged = 1; - if (!strcmp(used_atom[at], "symref")) - need_symref = 1; - return at; -} - -/* - * In a format string, find the next occurrence of %(atom). - */ -static const char *find_next(const char *cp) -{ - while (*cp) { - if (*cp == '%') { - /* - * %( is the start of an atom; - * %% is a quoted per-cent. - */ - if (cp[1] == '(') - return cp; - else if (cp[1] == '%') - cp++; /* skip over two % */ - /* otherwise this is a singleton, literal % */ - } - cp++; - } - return NULL; -} - -/* - * Make sure the format string is well formed, and parse out - * the used atoms. - */ -static int verify_format(const char *format) -{ - const char *cp, *sp; - for (cp = format; *cp && (sp = find_next(cp)); ) { - const char *ep = strchr(sp, ')'); - if (!ep) - return error("malformed format string %s", sp); - /* sp points at "%(" and ep points at the closing ")" */ - parse_atom(sp + 2, ep); - cp = ep + 1; - } - return 0; -} - -/* - * Given an object name, read the object data and size, and return a - * "struct object". If the object data we are returning is also borrowed - * by the "struct object" representation, set *eaten as well---it is a - * signal from parse_object_buffer to us not to free the buffer. - */ -static void *get_obj(const unsigned char *sha1, struct object **obj, unsigned long *sz, int *eaten) -{ - enum object_type type; - void *buf = read_sha1_file(sha1, &type, sz); - - if (buf) - *obj = parse_object_buffer(sha1, type, *sz, buf, eaten); - else - *obj = NULL; - return buf; -} - -/* See grab_values */ -static void grab_common_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) -{ - int i; - - for (i = 0; i < used_atom_cnt; i++) { - const char *name = used_atom[i]; - struct atom_value *v = &val[i]; - if (!!deref != (*name == '*')) - continue; - if (deref) - name++; - if (!strcmp(name, "objecttype")) - v->s = typename(obj->type); - else if (!strcmp(name, "objectsize")) { - char *s = xmalloc(40); - sprintf(s, "%lu", sz); - v->ul = sz; - v->s = s; - } - else if (!strcmp(name, "objectname")) { - char *s = xmalloc(41); - strcpy(s, sha1_to_hex(obj->sha1)); - v->s = s; - } - else if (!strcmp(name, "objectname:short")) { - v->s = xstrdup(find_unique_abbrev(obj->sha1, - DEFAULT_ABBREV)); - } - } -} - -/* See grab_values */ -static void grab_tag_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) -{ - int i; - struct tag *tag = (struct tag *) obj; - - for (i = 0; i < used_atom_cnt; i++) { - const char *name = used_atom[i]; - struct atom_value *v = &val[i]; - if (!!deref != (*name == '*')) - continue; - if (deref) - name++; - if (!strcmp(name, "tag")) - v->s = tag->tag; - else if (!strcmp(name, "type") && tag->tagged) - v->s = typename(tag->tagged->type); - else if (!strcmp(name, "object") && tag->tagged) { - char *s = xmalloc(41); - strcpy(s, sha1_to_hex(tag->tagged->sha1)); - v->s = s; - } - } -} - -static int num_parents(struct commit *commit) -{ - struct commit_list *parents; - int i; - - for (i = 0, parents = commit->parents; - parents; - parents = parents->next) - i++; - return i; -} - -/* See grab_values */ -static void grab_commit_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) -{ - int i; - struct commit *commit = (struct commit *) obj; - - for (i = 0; i < used_atom_cnt; i++) { - const char *name = used_atom[i]; - struct atom_value *v = &val[i]; - if (!!deref != (*name == '*')) - continue; - if (deref) - name++; - if (!strcmp(name, "tree")) { - char *s = xmalloc(41); - strcpy(s, sha1_to_hex(commit->tree->object.sha1)); - v->s = s; - } - if (!strcmp(name, "numparent")) { - char *s = xmalloc(40); - v->ul = num_parents(commit); - sprintf(s, "%lu", v->ul); - v->s = s; - } - else if (!strcmp(name, "parent")) { - int num = num_parents(commit); - int i; - struct commit_list *parents; - char *s = xmalloc(41 * num + 1); - v->s = s; - for (i = 0, parents = commit->parents; - parents; - parents = parents->next, i = i + 41) { - struct commit *parent = parents->item; - strcpy(s+i, sha1_to_hex(parent->object.sha1)); - if (parents->next) - s[i+40] = ' '; - } - if (!i) - *s = '\0'; - } - } -} - -static const char *find_wholine(const char *who, int wholen, const char *buf, unsigned long sz) -{ - const char *eol; - while (*buf) { - if (!strncmp(buf, who, wholen) && - buf[wholen] == ' ') - return buf + wholen + 1; - eol = strchr(buf, '\n'); - if (!eol) - return ""; - eol++; - if (*eol == '\n') - return ""; /* end of header */ - buf = eol; - } - return ""; -} - -static const char *copy_line(const char *buf) -{ - const char *eol = strchrnul(buf, '\n'); - return xmemdupz(buf, eol - buf); -} - -static const char *copy_name(const char *buf) -{ - const char *cp; - for (cp = buf; *cp && *cp != '\n'; cp++) { - if (!strncmp(cp, " <", 2)) - return xmemdupz(buf, cp - buf); - } - return ""; -} - -static const char *copy_email(const char *buf) -{ - const char *email = strchr(buf, '<'); - const char *eoemail; - if (!email) - return ""; - eoemail = strchr(email, '>'); - if (!eoemail) - return ""; - return xmemdupz(email, eoemail + 1 - email); -} - -static char *copy_subject(const char *buf, unsigned long len) -{ - char *r = xmemdupz(buf, len); - int i; - - for (i = 0; i < len; i++) - if (r[i] == '\n') - r[i] = ' '; - - return r; -} - -static void grab_date(const char *buf, struct atom_value *v, const char *atomname) -{ - const char *eoemail = strstr(buf, "> "); - char *zone; - unsigned long timestamp; - long tz; - enum date_mode date_mode = DATE_NORMAL; - const char *formatp; - - /* - * We got here because atomname ends in "date" or "date<something>"; - * it's not possible that <something> is not ":<format>" because - * parse_atom() wouldn't have allowed it, so we can assume that no - * ":" means no format is specified, and use the default. - */ - formatp = strchr(atomname, ':'); - if (formatp != NULL) { - formatp++; - date_mode = parse_date_format(formatp); - } - - if (!eoemail) - goto bad; - timestamp = strtoul(eoemail + 2, &zone, 10); - if (timestamp == ULONG_MAX) - goto bad; - tz = strtol(zone, NULL, 10); - if ((tz == LONG_MIN || tz == LONG_MAX) && errno == ERANGE) - goto bad; - v->s = xstrdup(show_date(timestamp, tz, date_mode)); - v->ul = timestamp; - return; - bad: - v->s = ""; - v->ul = 0; -} - -/* See grab_values */ -static void grab_person(const char *who, struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) -{ - int i; - int wholen = strlen(who); - const char *wholine = NULL; - - for (i = 0; i < used_atom_cnt; i++) { - const char *name = used_atom[i]; - struct atom_value *v = &val[i]; - if (!!deref != (*name == '*')) - continue; - if (deref) - name++; - if (strncmp(who, name, wholen)) - continue; - if (name[wholen] != 0 && - strcmp(name + wholen, "name") && - strcmp(name + wholen, "email") && - prefixcmp(name + wholen, "date")) - continue; - if (!wholine) - wholine = find_wholine(who, wholen, buf, sz); - if (!wholine) - return; /* no point looking for it */ - if (name[wholen] == 0) - v->s = copy_line(wholine); - else if (!strcmp(name + wholen, "name")) - v->s = copy_name(wholine); - else if (!strcmp(name + wholen, "email")) - v->s = copy_email(wholine); - else if (!prefixcmp(name + wholen, "date")) - grab_date(wholine, v, name); - } - - /* - * For a tag or a commit object, if "creator" or "creatordate" is - * requested, do something special. - */ - if (strcmp(who, "tagger") && strcmp(who, "committer")) - return; /* "author" for commit object is not wanted */ - if (!wholine) - wholine = find_wholine(who, wholen, buf, sz); - if (!wholine) - return; - for (i = 0; i < used_atom_cnt; i++) { - const char *name = used_atom[i]; - struct atom_value *v = &val[i]; - if (!!deref != (*name == '*')) - continue; - if (deref) - name++; - - if (!prefixcmp(name, "creatordate")) - grab_date(wholine, v, name); - else if (!strcmp(name, "creator")) - v->s = copy_line(wholine); - } -} - -static void find_subpos(const char *buf, unsigned long sz, - const char **sub, unsigned long *sublen, - const char **body, unsigned long *bodylen, - unsigned long *nonsiglen, - const char **sig, unsigned long *siglen) -{ - const char *eol; - /* skip past header until we hit empty line */ - while (*buf && *buf != '\n') { - eol = strchrnul(buf, '\n'); - if (*eol) - eol++; - buf = eol; - } - /* skip any empty lines */ - while (*buf == '\n') - buf++; - - /* parse signature first; we might not even have a subject line */ - *sig = buf + parse_signature(buf, strlen(buf)); - *siglen = strlen(*sig); - - /* subject is first non-empty line */ - *sub = buf; - /* subject goes to first empty line */ - while (buf < *sig && *buf && *buf != '\n') { - eol = strchrnul(buf, '\n'); - if (*eol) - eol++; - buf = eol; - } - *sublen = buf - *sub; - /* drop trailing newline, if present */ - if (*sublen && (*sub)[*sublen - 1] == '\n') - *sublen -= 1; - - /* skip any empty lines */ - while (*buf == '\n') - buf++; - *body = buf; - *bodylen = strlen(buf); - *nonsiglen = *sig - buf; -} - -/* See grab_values */ -static void grab_sub_body_contents(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) -{ - int i; - const char *subpos = NULL, *bodypos = NULL, *sigpos = NULL; - unsigned long sublen = 0, bodylen = 0, nonsiglen = 0, siglen = 0; - - for (i = 0; i < used_atom_cnt; i++) { - const char *name = used_atom[i]; - struct atom_value *v = &val[i]; - if (!!deref != (*name == '*')) - continue; - if (deref) - name++; - if (strcmp(name, "subject") && - strcmp(name, "body") && - strcmp(name, "contents") && - strcmp(name, "contents:subject") && - strcmp(name, "contents:body") && - strcmp(name, "contents:signature")) - continue; - if (!subpos) - find_subpos(buf, sz, - &subpos, &sublen, - &bodypos, &bodylen, &nonsiglen, - &sigpos, &siglen); - - if (!strcmp(name, "subject")) - v->s = copy_subject(subpos, sublen); - else if (!strcmp(name, "contents:subject")) - v->s = copy_subject(subpos, sublen); - else if (!strcmp(name, "body")) - v->s = xmemdupz(bodypos, bodylen); - else if (!strcmp(name, "contents:body")) - v->s = xmemdupz(bodypos, nonsiglen); - else if (!strcmp(name, "contents:signature")) - v->s = xmemdupz(sigpos, siglen); - else if (!strcmp(name, "contents")) - v->s = xstrdup(subpos); - } -} - -/* - * We want to have empty print-string for field requests - * that do not apply (e.g. "authordate" for a tag object) - */ -static void fill_missing_values(struct atom_value *val) -{ - int i; - for (i = 0; i < used_atom_cnt; i++) { - struct atom_value *v = &val[i]; - if (v->s == NULL) - v->s = ""; - } -} - -/* - * val is a list of atom_value to hold returned values. Extract - * the values for atoms in used_atom array out of (obj, buf, sz). - * when deref is false, (obj, buf, sz) is the object that is - * pointed at by the ref itself; otherwise it is the object the - * ref (which is a tag) refers to. - */ -static void grab_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) -{ - grab_common_values(val, deref, obj, buf, sz); - switch (obj->type) { - case OBJ_TAG: - grab_tag_values(val, deref, obj, buf, sz); - grab_sub_body_contents(val, deref, obj, buf, sz); - grab_person("tagger", val, deref, obj, buf, sz); - break; - case OBJ_COMMIT: - grab_commit_values(val, deref, obj, buf, sz); - grab_sub_body_contents(val, deref, obj, buf, sz); - grab_person("author", val, deref, obj, buf, sz); - grab_person("committer", val, deref, obj, buf, sz); - break; - case OBJ_TREE: - /* grab_tree_values(val, deref, obj, buf, sz); */ - break; - case OBJ_BLOB: - /* grab_blob_values(val, deref, obj, buf, sz); */ - break; - default: - die("Eh? Object of type %d?", obj->type); - } -} - -static inline char *copy_advance(char *dst, const char *src) -{ - while (*src) - *dst++ = *src++; - return dst; -} - -/* - * Parse the object referred by ref, and grab needed value. - */ -static void populate_value(struct refinfo *ref) -{ - void *buf; - struct object *obj; - int eaten, i; - unsigned long size; - const unsigned char *tagged; - - ref->value = xcalloc(sizeof(struct atom_value), used_atom_cnt); - - if (need_symref && (ref->flag & REF_ISSYMREF) && !ref->symref) { - unsigned char unused1[20]; - ref->symref = resolve_refdup(ref->refname, unused1, 1, NULL); - if (!ref->symref) - ref->symref = ""; - } - - /* Fill in specials first */ - for (i = 0; i < used_atom_cnt; i++) { - const char *name = used_atom[i]; - struct atom_value *v = &ref->value[i]; - int deref = 0; - const char *refname; - const char *formatp; - - if (*name == '*') { - deref = 1; - name++; - } - - if (!prefixcmp(name, "refname")) - refname = ref->refname; - else if (!prefixcmp(name, "symref")) - refname = ref->symref ? ref->symref : ""; - else if (!prefixcmp(name, "upstream")) { - struct branch *branch; - /* only local branches may have an upstream */ - if (prefixcmp(ref->refname, "refs/heads/")) - continue; - branch = branch_get(ref->refname + 11); - - if (!branch || !branch->merge || !branch->merge[0] || - !branch->merge[0]->dst) - continue; - refname = branch->merge[0]->dst; - } - else if (!strcmp(name, "flag")) { - char buf[256], *cp = buf; - if (ref->flag & REF_ISSYMREF) - cp = copy_advance(cp, ",symref"); - if (ref->flag & REF_ISPACKED) - cp = copy_advance(cp, ",packed"); - if (cp == buf) - v->s = ""; - else { - *cp = '\0'; - v->s = xstrdup(buf + 1); - } - continue; - } - else - continue; - - formatp = strchr(name, ':'); - /* look for "short" refname format */ - if (formatp) { - formatp++; - if (!strcmp(formatp, "short")) - refname = shorten_unambiguous_ref(refname, - warn_ambiguous_refs); - else - die("unknown %.*s format %s", - (int)(formatp - name), name, formatp); - } - - if (!deref) - v->s = refname; - else { - int len = strlen(refname); - char *s = xmalloc(len + 4); - sprintf(s, "%s^{}", refname); - v->s = s; - } - } - - for (i = 0; i < used_atom_cnt; i++) { - struct atom_value *v = &ref->value[i]; - if (v->s == NULL) - goto need_obj; - } - return; - - need_obj: - buf = get_obj(ref->objectname, &obj, &size, &eaten); - if (!buf) - die("missing object %s for %s", - sha1_to_hex(ref->objectname), ref->refname); - if (!obj) - die("parse_object_buffer failed on %s for %s", - sha1_to_hex(ref->objectname), ref->refname); - - grab_values(ref->value, 0, obj, buf, size); - if (!eaten) - free(buf); - - /* - * If there is no atom that wants to know about tagged - * object, we are done. - */ - if (!need_tagged || (obj->type != OBJ_TAG)) - return; - - /* - * If it is a tag object, see if we use a value that derefs - * the object, and if we do grab the object it refers to. - */ - tagged = ((struct tag *)obj)->tagged->sha1; - - /* - * NEEDSWORK: This derefs tag only once, which - * is good to deal with chains of trust, but - * is not consistent with what deref_tag() does - * which peels the onion to the core. - */ - buf = get_obj(tagged, &obj, &size, &eaten); - if (!buf) - die("missing object %s for %s", - sha1_to_hex(tagged), ref->refname); - if (!obj) - die("parse_object_buffer failed on %s for %s", - sha1_to_hex(tagged), ref->refname); - grab_values(ref->value, 1, obj, buf, size); - if (!eaten) - free(buf); -} - -/* - * Given a ref, return the value for the atom. This lazily gets value - * out of the object by calling populate value. - */ -static void get_value(struct refinfo *ref, int atom, struct atom_value **v) -{ - if (!ref->value) { - populate_value(ref); - fill_missing_values(ref->value); - } - *v = &ref->value[atom]; -} - -struct grab_ref_cbdata { - struct refinfo **grab_array; - const char **grab_pattern; - int grab_cnt; -}; - -/* - * A call-back given to for_each_ref(). Filter refs and keep them for - * later object processing. - */ -static int grab_single_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) -{ - struct grab_ref_cbdata *cb = cb_data; - struct refinfo *ref; - int cnt; - - if (*cb->grab_pattern) { - const char **pattern; - int namelen = strlen(refname); - for (pattern = cb->grab_pattern; *pattern; pattern++) { - const char *p = *pattern; - int plen = strlen(p); - - if ((plen <= namelen) && - !strncmp(refname, p, plen) && - (refname[plen] == '\0' || - refname[plen] == '/' || - p[plen-1] == '/')) - break; - if (!fnmatch(p, refname, FNM_PATHNAME)) - break; - } - if (!*pattern) - return 0; - } - - /* - * We do not open the object yet; sort may only need refname - * to do its job and the resulting list may yet to be pruned - * by maxcount logic. - */ - ref = xcalloc(1, sizeof(*ref)); - ref->refname = xstrdup(refname); - hashcpy(ref->objectname, sha1); - ref->flag = flag; - - cnt = cb->grab_cnt; - cb->grab_array = xrealloc(cb->grab_array, - sizeof(*cb->grab_array) * (cnt + 1)); - cb->grab_array[cnt++] = ref; - cb->grab_cnt = cnt; - return 0; -} - -static int cmp_ref_sort(struct ref_sort *s, struct refinfo *a, struct refinfo *b) -{ - struct atom_value *va, *vb; - int cmp; - cmp_type cmp_type = used_atom_type[s->atom]; - - get_value(a, s->atom, &va); - get_value(b, s->atom, &vb); - switch (cmp_type) { - case FIELD_STR: - cmp = strcmp(va->s, vb->s); - break; - default: - if (va->ul < vb->ul) - cmp = -1; - else if (va->ul == vb->ul) - cmp = 0; - else - cmp = 1; - break; - } - return (s->reverse) ? -cmp : cmp; -} - -static struct ref_sort *ref_sort; -static int compare_refs(const void *a_, const void *b_) -{ - struct refinfo *a = *((struct refinfo **)a_); - struct refinfo *b = *((struct refinfo **)b_); - struct ref_sort *s; - - for (s = ref_sort; s; s = s->next) { - int cmp = cmp_ref_sort(s, a, b); - if (cmp) - return cmp; - } - return 0; -} - -static void sort_refs(struct ref_sort *sort, struct refinfo **refs, int num_refs) -{ - ref_sort = sort; - qsort(refs, num_refs, sizeof(struct refinfo *), compare_refs); -} - -static void print_value(struct refinfo *ref, int atom, int quote_style) -{ - struct atom_value *v; - get_value(ref, atom, &v); - switch (quote_style) { - case QUOTE_NONE: - fputs(v->s, stdout); - break; - case QUOTE_SHELL: - sq_quote_print(stdout, v->s); - break; - case QUOTE_PERL: - perl_quote_print(stdout, v->s); - break; - case QUOTE_PYTHON: - python_quote_print(stdout, v->s); - break; - case QUOTE_TCL: - tcl_quote_print(stdout, v->s); - break; - } -} - -static int hex1(char ch) -{ - if ('0' <= ch && ch <= '9') - return ch - '0'; - else if ('a' <= ch && ch <= 'f') - return ch - 'a' + 10; - else if ('A' <= ch && ch <= 'F') - return ch - 'A' + 10; - return -1; -} -static int hex2(const char *cp) -{ - if (cp[0] && cp[1]) - return (hex1(cp[0]) << 4) | hex1(cp[1]); - else - return -1; -} - -static void emit(const char *cp, const char *ep) -{ - while (*cp && (!ep || cp < ep)) { - if (*cp == '%') { - if (cp[1] == '%') - cp++; - else { - int ch = hex2(cp + 1); - if (0 <= ch) { - putchar(ch); - cp += 3; - continue; - } - } - } - putchar(*cp); - cp++; - } -} - -static void show_ref(struct refinfo *info, const char *format, int quote_style) -{ - const char *cp, *sp, *ep; - - for (cp = format; *cp && (sp = find_next(cp)); cp = ep + 1) { - ep = strchr(sp, ')'); - if (cp < sp) - emit(cp, sp); - print_value(info, parse_atom(sp + 2, ep), quote_style); - } - if (*cp) { - sp = cp + strlen(cp); - emit(cp, sp); - } - putchar('\n'); -} - -static struct ref_sort *default_sort(void) -{ - static const char cstr_name[] = "refname"; - - struct ref_sort *sort = xcalloc(1, sizeof(*sort)); - - sort->next = NULL; - sort->atom = parse_atom(cstr_name, cstr_name + strlen(cstr_name)); - return sort; -} - -static int opt_parse_sort(const struct option *opt, const char *arg, int unset) -{ - struct ref_sort **sort_tail = opt->value; - struct ref_sort *s; - int len; - - if (!arg) /* should --no-sort void the list ? */ - return -1; - - *sort_tail = s = xcalloc(1, sizeof(*s)); - - if (*arg == '-') { - s->reverse = 1; - arg++; - } - len = strlen(arg); - s->atom = parse_atom(arg, arg+len); - return 0; -} +#include "ref-filter.h" static char const * const for_each_ref_usage[] = { - "git for-each-ref [options] [<pattern>]", + N_("git for-each-ref [<options>] [<pattern>]"), + N_("git for-each-ref [--points-at <object>]"), + N_("git for-each-ref [(--merged | --no-merged) [<object>]]"), + N_("git for-each-ref [--contains [<object>]]"), NULL }; int cmd_for_each_ref(int argc, const char **argv, const char *prefix) { - int i, num_refs; + int i; const char *format = "%(objectname) %(objecttype)\t%(refname)"; - struct ref_sort *sort = NULL, **sort_tail = &sort; + struct ref_sorting *sorting = NULL, **sorting_tail = &sorting; int maxcount = 0, quote_style = 0; - struct refinfo **refs; - struct grab_ref_cbdata cbdata; + struct ref_array array; + struct ref_filter filter; struct option opts[] = { OPT_BIT('s', "shell", "e_style, - "quote placeholders suitably for shells", QUOTE_SHELL), + N_("quote placeholders suitably for shells"), QUOTE_SHELL), OPT_BIT('p', "perl", "e_style, - "quote placeholders suitably for perl", QUOTE_PERL), + N_("quote placeholders suitably for perl"), QUOTE_PERL), OPT_BIT(0 , "python", "e_style, - "quote placeholders suitably for python", QUOTE_PYTHON), + N_("quote placeholders suitably for python"), QUOTE_PYTHON), OPT_BIT(0 , "tcl", "e_style, - "quote placeholders suitably for tcl", QUOTE_TCL), + N_("quote placeholders suitably for Tcl"), QUOTE_TCL), OPT_GROUP(""), - OPT_INTEGER( 0 , "count", &maxcount, "show only <n> matched refs"), - OPT_STRING( 0 , "format", &format, "format", "format to use for the output"), - OPT_CALLBACK(0 , "sort", sort_tail, "key", - "field name to sort on", &opt_parse_sort), + OPT_INTEGER( 0 , "count", &maxcount, N_("show only <n> matched refs")), + OPT_STRING( 0 , "format", &format, N_("format"), N_("format to use for the output")), + OPT_CALLBACK(0 , "sort", sorting_tail, N_("key"), + N_("field name to sort on"), &parse_opt_ref_sorting), + OPT_CALLBACK(0, "points-at", &filter.points_at, + N_("object"), N_("print only refs which points at the given object"), + parse_opt_object_name), + OPT_MERGED(&filter, N_("print only refs that are merged")), + OPT_NO_MERGED(&filter, N_("print only refs that are not merged")), + OPT_CONTAINS(&filter.with_commit, N_("print only refs which contain the commit")), OPT_END(), }; + memset(&array, 0, sizeof(array)); + memset(&filter, 0, sizeof(filter)); + parse_options(argc, argv, prefix, opts, for_each_ref_usage, 0); if (maxcount < 0) { error("invalid --count argument: `%d'", maxcount); @@ -1014,27 +58,24 @@ int cmd_for_each_ref(int argc, const char **argv, const char *prefix) error("more than one quoting style?"); usage_with_options(for_each_ref_usage, opts); } - if (verify_format(format)) + if (verify_ref_format(format)) usage_with_options(for_each_ref_usage, opts); - if (!sort) - sort = default_sort(); - sort_atom_limit = used_atom_cnt; + if (!sorting) + sorting = ref_default_sorting(); /* for warn_ambiguous_refs */ git_config(git_default_config, NULL); - memset(&cbdata, 0, sizeof(cbdata)); - cbdata.grab_pattern = argv; - for_each_rawref(grab_single_ref, &cbdata); - refs = cbdata.grab_array; - num_refs = cbdata.grab_cnt; - - sort_refs(sort, refs, num_refs); + filter.name_patterns = argv; + filter.match_as_path = 1; + filter_refs(&array, &filter, FILTER_REFS_ALL | FILTER_REFS_INCLUDE_BROKEN); + ref_array_sort(sorting, &array); - if (!maxcount || num_refs < maxcount) - maxcount = num_refs; + if (!maxcount || array.nr < maxcount) + maxcount = array.nr; for (i = 0; i < maxcount; i++) - show_ref(refs[i], format, quote_style); + show_ref_array_item(array.items[i], format, quote_style); + ref_array_clear(&array); return 0; } diff --git a/builtin/fsck.c b/builtin/fsck.c index 8c479a791b..3f27456883 100644 --- a/builtin/fsck.c +++ b/builtin/fsck.c @@ -12,68 +12,80 @@ #include "parse-options.h" #include "dir.h" #include "progress.h" +#include "streaming.h" #define REACHABLE 0x0001 #define SEEN 0x0002 +#define HAS_OBJ 0x0004 static int show_root; static int show_tags; static int show_unreachable; static int include_reflogs = 1; static int check_full = 1; +static int connectivity_only; static int check_strict; static int keep_cache_objects; -static unsigned char head_sha1[20]; +static struct fsck_options fsck_walk_options = FSCK_OPTIONS_DEFAULT; +static struct fsck_options fsck_obj_options = FSCK_OPTIONS_DEFAULT; +static struct object_id head_oid; static const char *head_points_at; static int errors_found; static int write_lost_and_found; static int verbose; static int show_progress = -1; +static int show_dangling = 1; #define ERROR_OBJECT 01 #define ERROR_REACHABLE 02 #define ERROR_PACK 04 +#define ERROR_REFS 010 -#ifdef NO_D_INO_IN_DIRENT -#define SORT_DIRENT 0 -#define DIRENT_SORT_HINT(de) 0 -#else -#define SORT_DIRENT 1 -#define DIRENT_SORT_HINT(de) ((de)->d_ino) -#endif +static int fsck_config(const char *var, const char *value, void *cb) +{ + if (strcmp(var, "fsck.skiplist") == 0) { + const char *path; + struct strbuf sb = STRBUF_INIT; + + if (git_config_pathname(&path, var, value)) + return 1; + strbuf_addf(&sb, "skiplist=%s", path); + free((char *)path); + fsck_set_msg_types(&fsck_obj_options, sb.buf); + strbuf_release(&sb); + return 0; + } -static void objreport(struct object *obj, const char *severity, - const char *err, va_list params) + if (skip_prefix(var, "fsck.", &var)) { + fsck_set_msg_type(&fsck_obj_options, var, value); + return 0; + } + + return git_default_config(var, value, cb); +} + +static void objreport(struct object *obj, const char *msg_type, + const char *err) { - fprintf(stderr, "%s in %s %s: ", - severity, typename(obj->type), sha1_to_hex(obj->sha1)); - vfprintf(stderr, err, params); - fputs("\n", stderr); + fprintf(stderr, "%s in %s %s: %s\n", + msg_type, typename(obj->type), oid_to_hex(&obj->oid), err); } -__attribute__((format (printf, 2, 3))) -static int objerror(struct object *obj, const char *err, ...) +static int objerror(struct object *obj, const char *err) { - va_list params; - va_start(params, err); errors_found |= ERROR_OBJECT; - objreport(obj, "error", err, params); - va_end(params); + objreport(obj, "error", err); return -1; } -__attribute__((format (printf, 3, 4))) -static int fsck_error_func(struct object *obj, int type, const char *err, ...) +static int fsck_error_func(struct object *obj, int type, const char *message) { - va_list params; - va_start(params, err); - objreport(obj, (type == FSCK_WARN) ? "warning" : "error", err, params); - va_end(params); + objreport(obj, (type == FSCK_WARN) ? "warning" : "error", message); return (type == FSCK_WARN) ? 0 : 1; } static struct object_array pending; -static int mark_object(struct object *obj, int type, void *data) +static int mark_object(struct object *obj, int type, void *data, struct fsck_options *options) { struct object *parent = data; @@ -85,7 +97,7 @@ static int mark_object(struct object *obj, int type, void *data) if (!obj) { /* ... these references to parent->fld are safe here */ printf("broken link from %7s %s\n", - typename(parent->type), sha1_to_hex(parent->sha1)); + typename(parent->type), oid_to_hex(&parent->oid)); printf("broken link from %7s %s\n", (type == OBJ_ANY ? "unknown" : typename(type)), "unknown"); errors_found |= ERROR_REACHABLE; @@ -99,24 +111,24 @@ static int mark_object(struct object *obj, int type, void *data) if (obj->flags & REACHABLE) return 0; obj->flags |= REACHABLE; - if (!obj->parsed) { - if (parent && !has_sha1_file(obj->sha1)) { + if (!(obj->flags & HAS_OBJ)) { + if (parent && !has_object_file(&obj->oid)) { printf("broken link from %7s %s\n", - typename(parent->type), sha1_to_hex(parent->sha1)); + typename(parent->type), oid_to_hex(&parent->oid)); printf(" to %7s %s\n", - typename(obj->type), sha1_to_hex(obj->sha1)); + typename(obj->type), oid_to_hex(&obj->oid)); errors_found |= ERROR_REACHABLE; } return 1; } - add_object_array(obj, (void *) parent, &pending); + add_object_array(obj, NULL, &pending); return 0; } static void mark_object_reachable(struct object *obj) { - mark_object(obj, OBJ_ANY, NULL); + mark_object(obj, OBJ_ANY, NULL, NULL); } static int traverse_one_object(struct object *obj) @@ -125,16 +137,13 @@ static int traverse_one_object(struct object *obj) struct tree *tree = NULL; if (obj->type == OBJ_TREE) { - obj->parsed = 0; tree = (struct tree *)obj; if (parse_tree(tree) < 0) return 1; /* error already displayed */ } - result = fsck_walk(obj, mark_object, obj); - if (tree) { - free(tree->buffer); - tree->buffer = NULL; - } + result = fsck_walk(obj, obj, &fsck_walk_options); + if (tree) + free_tree_buffer(tree); return result; } @@ -144,7 +153,7 @@ static int traverse_reachable(void) unsigned int nr = 0; int result = 0; if (show_progress) - progress = start_progress_delay("Checking connectivity", 0, 0, 2); + progress = start_progress_delay(_("Checking connectivity"), 0, 0, 2); while (pending.nr) { struct object_array_entry *entry; struct object *obj; @@ -158,7 +167,7 @@ static int traverse_reachable(void) return !!result; } -static int mark_used(struct object *obj, int type, void *data) +static int mark_used(struct object *obj, int type, void *data, struct fsck_options *options) { if (!obj) return 1; @@ -176,10 +185,12 @@ static void check_reachable_object(struct object *obj) * except if it was in a pack-file and we didn't * do a full fsck */ - if (!obj->parsed) { - if (has_sha1_pack(obj->sha1)) + if (!(obj->flags & HAS_OBJ)) { + if (has_sha1_pack(obj->oid.hash)) return; /* it is in pack - forget about it */ - printf("missing %s %s\n", typename(obj->type), sha1_to_hex(obj->sha1)); + if (connectivity_only && has_object_file(&obj->oid)) + return; + printf("missing %s %s\n", typename(obj->type), oid_to_hex(&obj->oid)); errors_found |= ERROR_REACHABLE; return; } @@ -204,7 +215,7 @@ static void check_unreachable_object(struct object *obj) * since this is something that is prunable. */ if (show_unreachable) { - printf("unreachable %s %s\n", typename(obj->type), sha1_to_hex(obj->sha1)); + printf("unreachable %s %s\n", typename(obj->type), oid_to_hex(&obj->oid)); return; } @@ -221,33 +232,31 @@ static void check_unreachable_object(struct object *obj) * start looking at, for example. */ if (!obj->used) { - printf("dangling %s %s\n", typename(obj->type), - sha1_to_hex(obj->sha1)); + if (show_dangling) + printf("dangling %s %s\n", typename(obj->type), + oid_to_hex(&obj->oid)); if (write_lost_and_found) { - char *filename = git_path("lost-found/%s/%s", + char *filename = git_pathdup("lost-found/%s/%s", obj->type == OBJ_COMMIT ? "commit" : "other", - sha1_to_hex(obj->sha1)); + oid_to_hex(&obj->oid)); FILE *f; - if (safe_create_leading_directories(filename)) { + if (safe_create_leading_directories_const(filename)) { error("Could not create lost-found"); + free(filename); return; } if (!(f = fopen(filename, "w"))) die_errno("Could not open '%s'", filename); if (obj->type == OBJ_BLOB) { - enum object_type type; - unsigned long size; - char *buf = read_sha1_file(obj->sha1, - &type, &size); - if (buf && fwrite(buf, 1, size, f) != size) + if (stream_blob_to_fd(fileno(f), obj->oid.hash, NULL, 1)) die_errno("Could not write '%s'", filename); - free(buf); } else - fprintf(f, "%s\n", sha1_to_hex(obj->sha1)); + fprintf(f, "%s\n", oid_to_hex(&obj->oid)); if (fclose(f)) die_errno("Could not finish '%s'", filename); + free(filename); } return; } @@ -262,7 +271,7 @@ static void check_unreachable_object(struct object *obj) static void check_object(struct object *obj) { if (verbose) - fprintf(stderr, "Checking %s\n", sha1_to_hex(obj->sha1)); + fprintf(stderr, "Checking %s\n", oid_to_hex(&obj->oid)); if (obj->flags & REACHABLE) check_reachable_object(obj); @@ -298,36 +307,34 @@ static int fsck_obj(struct object *obj) if (verbose) fprintf(stderr, "Checking %s %s\n", - typename(obj->type), sha1_to_hex(obj->sha1)); + typename(obj->type), oid_to_hex(&obj->oid)); - if (fsck_walk(obj, mark_used, NULL)) + if (fsck_walk(obj, NULL, &fsck_obj_options)) objerror(obj, "broken links"); - if (fsck_object(obj, check_strict, fsck_error_func)) + if (fsck_object(obj, NULL, 0, &fsck_obj_options)) return -1; if (obj->type == OBJ_TREE) { struct tree *item = (struct tree *) obj; - free(item->buffer); - item->buffer = NULL; + free_tree_buffer(item); } if (obj->type == OBJ_COMMIT) { struct commit *commit = (struct commit *) obj; - free(commit->buffer); - commit->buffer = NULL; + free_commit_buffer(commit); if (!commit->parents && show_root) - printf("root %s\n", sha1_to_hex(commit->object.sha1)); + printf("root %s\n", oid_to_hex(&commit->object.oid)); } if (obj->type == OBJ_TAG) { struct tag *tag = (struct tag *) obj; if (show_tags && tag->tagged) { - printf("tagged %s %s", typename(tag->tagged->type), sha1_to_hex(tag->tagged->sha1)); - printf(" (%s) in %s\n", tag->tag, sha1_to_hex(tag->object.sha1)); + printf("tagged %s %s", typename(tag->tagged->type), oid_to_hex(&tag->tagged->oid)); + printf(" (%s) in %s\n", tag->tag, oid_to_hex(&tag->object.oid)); } } @@ -342,6 +349,7 @@ static int fsck_sha1(const unsigned char *sha1) return error("%s: object corrupt or missing", sha1_to_hex(sha1)); } + obj->flags |= HAS_OBJ; return fsck_obj(obj); } @@ -354,154 +362,66 @@ static int fsck_obj_buffer(const unsigned char *sha1, enum object_type type, errors_found |= ERROR_OBJECT; return error("%s: object corrupt or missing", sha1_to_hex(sha1)); } + obj->flags = HAS_OBJ; return fsck_obj(obj); } -/* - * This is the sorting chunk size: make it reasonably - * big so that we can sort well.. - */ -#define MAX_SHA1_ENTRIES (1024) - -struct sha1_entry { - unsigned long ino; - unsigned char sha1[20]; -}; - -static struct { - unsigned long nr; - struct sha1_entry *entry[MAX_SHA1_ENTRIES]; -} sha1_list; - -static int ino_compare(const void *_a, const void *_b) -{ - const struct sha1_entry *a = _a, *b = _b; - unsigned long ino1 = a->ino, ino2 = b->ino; - return ino1 < ino2 ? -1 : ino1 > ino2 ? 1 : 0; -} - -static void fsck_sha1_list(void) -{ - int i, nr = sha1_list.nr; - - if (SORT_DIRENT) - qsort(sha1_list.entry, nr, - sizeof(struct sha1_entry *), ino_compare); - for (i = 0; i < nr; i++) { - struct sha1_entry *entry = sha1_list.entry[i]; - unsigned char *sha1 = entry->sha1; - - sha1_list.entry[i] = NULL; - fsck_sha1(sha1); - free(entry); - } - sha1_list.nr = 0; -} - -static void add_sha1_list(unsigned char *sha1, unsigned long ino) -{ - struct sha1_entry *entry = xmalloc(sizeof(*entry)); - int nr; - - entry->ino = ino; - hashcpy(entry->sha1, sha1); - nr = sha1_list.nr; - if (nr == MAX_SHA1_ENTRIES) { - fsck_sha1_list(); - nr = 0; - } - sha1_list.entry[nr] = entry; - sha1_list.nr = ++nr; -} - -static inline int is_loose_object_file(struct dirent *de, - char *name, unsigned char *sha1) -{ - if (strlen(de->d_name) != 38) - return 0; - memcpy(name + 2, de->d_name, 39); - return !get_sha1_hex(name, sha1); -} +static int default_refs; -static void fsck_dir(int i, char *path) +static void fsck_handle_reflog_sha1(const char *refname, unsigned char *sha1) { - DIR *dir = opendir(path); - struct dirent *de; - char name[100]; - - if (!dir) - return; - - if (verbose) - fprintf(stderr, "Checking directory %s\n", path); - - sprintf(name, "%02x", i); - while ((de = readdir(dir)) != NULL) { - unsigned char sha1[20]; + struct object *obj; - if (is_dot_or_dotdot(de->d_name)) - continue; - if (is_loose_object_file(de, name, sha1)) { - add_sha1_list(sha1, DIRENT_SORT_HINT(de)); - continue; + if (!is_null_sha1(sha1)) { + obj = lookup_object(sha1); + if (obj) { + obj->used = 1; + mark_object_reachable(obj); + } else { + error("%s: invalid reflog entry %s", refname, sha1_to_hex(sha1)); + errors_found |= ERROR_REACHABLE; } - if (!prefixcmp(de->d_name, "tmp_obj_")) - continue; - fprintf(stderr, "bad sha1 file: %s/%s\n", path, de->d_name); } - closedir(dir); } -static int default_refs; - static int fsck_handle_reflog_ent(unsigned char *osha1, unsigned char *nsha1, const char *email, unsigned long timestamp, int tz, const char *message, void *cb_data) { - struct object *obj; + const char *refname = cb_data; if (verbose) fprintf(stderr, "Checking reflog %s->%s\n", sha1_to_hex(osha1), sha1_to_hex(nsha1)); - if (!is_null_sha1(osha1)) { - obj = lookup_object(osha1); - if (obj) { - obj->used = 1; - mark_object_reachable(obj); - } - } - obj = lookup_object(nsha1); - if (obj) { - obj->used = 1; - mark_object_reachable(obj); - } + fsck_handle_reflog_sha1(refname, osha1); + fsck_handle_reflog_sha1(refname, nsha1); return 0; } -static int fsck_handle_reflog(const char *logname, const unsigned char *sha1, int flag, void *cb_data) +static int fsck_handle_reflog(const char *logname, const struct object_id *oid, + int flag, void *cb_data) { - for_each_reflog_ent(logname, fsck_handle_reflog_ent, NULL); + for_each_reflog_ent(logname, fsck_handle_reflog_ent, (void *)logname); return 0; } -static int is_branch(const char *refname) -{ - return !strcmp(refname, "HEAD") || !prefixcmp(refname, "refs/heads/"); -} - -static int fsck_handle_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) +static int fsck_handle_ref(const char *refname, const struct object_id *oid, + int flag, void *cb_data) { struct object *obj; - obj = parse_object(sha1); + obj = parse_object(oid->hash); if (!obj) { - error("%s: invalid sha1 pointer %s", refname, sha1_to_hex(sha1)); + error("%s: invalid sha1 pointer %s", refname, oid_to_hex(oid)); + errors_found |= ERROR_REACHABLE; /* We'll continue with the rest despite the error.. */ return 0; } - if (obj->type != OBJ_COMMIT && is_branch(refname)) + if (obj->type != OBJ_COMMIT && is_branch(refname)) { error("%s: not a commit", refname); + errors_found |= ERROR_REFS; + } default_refs++; obj->used = 1; mark_object_reachable(obj); @@ -511,9 +431,9 @@ static int fsck_handle_ref(const char *refname, const unsigned char *sha1, int f static void get_default_heads(void) { - if (head_points_at && !is_null_sha1(head_sha1)) - fsck_handle_ref("HEAD", head_sha1, 0, NULL); - for_each_ref(fsck_handle_ref, NULL); + if (head_points_at && !is_null_oid(&head_oid)) + fsck_handle_ref("HEAD", &head_oid, 0, NULL); + for_each_rawref(fsck_handle_ref, NULL); if (include_reflogs) for_each_reflog(fsck_handle_reflog, NULL); @@ -535,46 +455,67 @@ static void get_default_heads(void) } } +static int fsck_loose(const unsigned char *sha1, const char *path, void *data) +{ + if (fsck_sha1(sha1)) + errors_found |= ERROR_OBJECT; + return 0; +} + +static int fsck_cruft(const char *basename, const char *path, void *data) +{ + if (!starts_with(basename, "tmp_obj_")) + fprintf(stderr, "bad sha1 file: %s\n", path); + return 0; +} + +static int fsck_subdir(int nr, const char *path, void *progress) +{ + display_progress(progress, nr + 1); + return 0; +} + static void fsck_object_dir(const char *path) { - int i; struct progress *progress = NULL; if (verbose) fprintf(stderr, "Checking object directory\n"); if (show_progress) - progress = start_progress("Checking object directories", 256); - for (i = 0; i < 256; i++) { - static char dir[4096]; - sprintf(dir, "%s/%02x", path, i); - fsck_dir(i, dir); - display_progress(progress, i+1); - } + progress = start_progress(_("Checking object directories"), 256); + + for_each_loose_file_in_objdir(path, fsck_loose, fsck_cruft, fsck_subdir, + progress); + display_progress(progress, 256); stop_progress(&progress); - fsck_sha1_list(); } static int fsck_head_link(void) { - int flag; int null_is_error = 0; if (verbose) fprintf(stderr, "Checking HEAD link\n"); - head_points_at = resolve_ref_unsafe("HEAD", head_sha1, 0, &flag); - if (!head_points_at) + head_points_at = resolve_ref_unsafe("HEAD", 0, head_oid.hash, NULL); + if (!head_points_at) { + errors_found |= ERROR_REFS; return error("Invalid HEAD"); + } if (!strcmp(head_points_at, "HEAD")) /* detached HEAD */ null_is_error = 1; - else if (prefixcmp(head_points_at, "refs/heads/")) + else if (!starts_with(head_points_at, "refs/heads/")) { + errors_found |= ERROR_REFS; return error("HEAD points to something strange (%s)", head_points_at); - if (is_null_sha1(head_sha1)) { - if (null_is_error) + } + if (is_null_oid(&head_oid)) { + if (null_is_error) { + errors_found |= ERROR_REFS; return error("HEAD: detached HEAD points at nothing"); + } fprintf(stderr, "notice: HEAD points to an unborn branch (%s)\n", head_points_at + 11); } @@ -594,6 +535,7 @@ static int fsck_cache_tree(struct cache_tree *it) if (!obj) { error("%s: invalid sha1 pointer in cache-tree", sha1_to_hex(it->sha1)); + errors_found |= ERROR_REFS; return 1; } obj->used = 1; @@ -607,22 +549,24 @@ static int fsck_cache_tree(struct cache_tree *it) } static char const * const fsck_usage[] = { - "git fsck [options] [<object>...]", + N_("git fsck [<options>] [<object>...]"), NULL }; static struct option fsck_opts[] = { - OPT__VERBOSE(&verbose, "be verbose"), - OPT_BOOLEAN(0, "unreachable", &show_unreachable, "show unreachable objects"), - OPT_BOOLEAN(0, "tags", &show_tags, "report tags"), - OPT_BOOLEAN(0, "root", &show_root, "report root nodes"), - OPT_BOOLEAN(0, "cache", &keep_cache_objects, "make index objects head nodes"), - OPT_BOOLEAN(0, "reflogs", &include_reflogs, "make reflogs head nodes (default)"), - OPT_BOOLEAN(0, "full", &check_full, "also consider packs and alternate objects"), - OPT_BOOLEAN(0, "strict", &check_strict, "enable more strict checking"), - OPT_BOOLEAN(0, "lost-found", &write_lost_and_found, - "write dangling objects in .git/lost-found"), - OPT_BOOL(0, "progress", &show_progress, "show progress"), + OPT__VERBOSE(&verbose, N_("be verbose")), + OPT_BOOL(0, "unreachable", &show_unreachable, N_("show unreachable objects")), + OPT_BOOL(0, "dangling", &show_dangling, N_("show dangling objects")), + OPT_BOOL(0, "tags", &show_tags, N_("report tags")), + OPT_BOOL(0, "root", &show_root, N_("report root nodes")), + OPT_BOOL(0, "cache", &keep_cache_objects, N_("make index objects head nodes")), + OPT_BOOL(0, "reflogs", &include_reflogs, N_("make reflogs head nodes (default)")), + OPT_BOOL(0, "full", &check_full, N_("also consider packs and alternate objects")), + OPT_BOOL(0, "connectivity-only", &connectivity_only, N_("check only connectivity")), + OPT_BOOL(0, "strict", &check_strict, N_("enable more strict checking")), + OPT_BOOL(0, "lost-found", &write_lost_and_found, + N_("write dangling objects in .git/lost-found")), + OPT_BOOL(0, "progress", &show_progress, N_("show progress")), OPT_END(), }; @@ -632,10 +576,16 @@ int cmd_fsck(int argc, const char **argv, const char *prefix) struct alternate_object_database *alt; errors_found = 0; - read_replace_refs = 0; + check_replace_refs = 0; argc = parse_options(argc, argv, prefix, fsck_opts, fsck_usage, 0); + fsck_walk_options.walk = mark_object; + fsck_obj_options.walk = mark_used; + fsck_obj_options.error_func = fsck_error_func; + if (check_strict) + fsck_obj_options.strict = 1; + if (show_progress == -1) show_progress = isatty(2); if (verbose) @@ -646,16 +596,21 @@ int cmd_fsck(int argc, const char **argv, const char *prefix) include_reflogs = 0; } + git_config(fsck_config, NULL); + fsck_head_link(); - fsck_object_dir(get_object_directory()); - - prepare_alt_odb(); - for (alt = alt_odb_list; alt; alt = alt->next) { - char namebuf[PATH_MAX]; - int namelen = alt->name - alt->base; - memcpy(namebuf, alt->base, namelen); - namebuf[namelen - 1] = 0; - fsck_object_dir(namebuf); + if (!connectivity_only) { + fsck_object_dir(get_object_directory()); + + prepare_alt_odb(); + for (alt = alt_odb_list; alt; alt = alt->next) { + /* directory name, minus trailing slash */ + size_t namelen = alt->name - alt->base - 1; + struct strbuf name = STRBUF_INIT; + strbuf_add(&name, alt->base, namelen); + fsck_object_dir(name.buf); + strbuf_release(&name); + } } if (check_full) { @@ -672,7 +627,7 @@ int cmd_fsck(int argc, const char **argv, const char *prefix) total += p->num_objects; } - progress = start_progress("Checking objects", total); + progress = start_progress(_("Checking objects"), total); } for (p = packed_git; p; p = p->next) { /* verify gives error messages itself */ diff --git a/builtin/gc.c b/builtin/gc.c index 271376d82b..c583aad6ec 100644 --- a/builtin/gc.c +++ b/builtin/gc.c @@ -11,73 +11,109 @@ */ #include "builtin.h" -#include "cache.h" +#include "tempfile.h" +#include "lockfile.h" #include "parse-options.h" #include "run-command.h" +#include "sigchain.h" +#include "argv-array.h" +#include "commit.h" #define FAILED_RUN "failed to run %s" static const char * const builtin_gc_usage[] = { - "git gc [options]", + N_("git gc [<options>]"), NULL }; static int pack_refs = 1; +static int prune_reflogs = 1; +static int aggressive_depth = 250; static int aggressive_window = 250; static int gc_auto_threshold = 6700; static int gc_auto_pack_limit = 50; +static int detach_auto = 1; static const char *prune_expire = "2.weeks.ago"; +static const char *prune_worktrees_expire = "3.months.ago"; -#define MAX_ADD 10 -static const char *argv_pack_refs[] = {"pack-refs", "--all", "--prune", NULL}; -static const char *argv_reflog[] = {"reflog", "expire", "--all", NULL}; -static const char *argv_repack[MAX_ADD] = {"repack", "-d", "-l", NULL}; -static const char *argv_prune[] = {"prune", "--expire", NULL, NULL, NULL}; -static const char *argv_rerere[] = {"rerere", "gc", NULL}; +static struct argv_array pack_refs_cmd = ARGV_ARRAY_INIT; +static struct argv_array reflog = ARGV_ARRAY_INIT; +static struct argv_array repack = ARGV_ARRAY_INIT; +static struct argv_array prune = ARGV_ARRAY_INIT; +static struct argv_array prune_worktrees = ARGV_ARRAY_INIT; +static struct argv_array rerere = ARGV_ARRAY_INIT; -static int gc_config(const char *var, const char *value, void *cb) +static struct tempfile pidfile; +static struct lock_file log_lock; + +static struct string_list pack_garbage = STRING_LIST_INIT_DUP; + +static void clean_pack_garbage(void) { - if (!strcmp(var, "gc.packrefs")) { - if (value && !strcmp(value, "notbare")) - pack_refs = -1; - else - pack_refs = git_config_bool(var, value); - return 0; - } - if (!strcmp(var, "gc.aggressivewindow")) { - aggressive_window = git_config_int(var, value); - return 0; - } - if (!strcmp(var, "gc.auto")) { - gc_auto_threshold = git_config_int(var, value); - return 0; - } - if (!strcmp(var, "gc.autopacklimit")) { - gc_auto_pack_limit = git_config_int(var, value); - return 0; - } - if (!strcmp(var, "gc.pruneexpire")) { - if (value && strcmp(value, "now")) { - unsigned long now = approxidate("now"); - if (approxidate(value) >= now) - return error(_("Invalid %s: '%s'"), var, value); - } - return git_config_string(&prune_expire, var, value); + int i; + for (i = 0; i < pack_garbage.nr; i++) + unlink_or_warn(pack_garbage.items[i].string); + string_list_clear(&pack_garbage, 0); +} + +static void report_pack_garbage(unsigned seen_bits, const char *path) +{ + if (seen_bits == PACKDIR_FILE_IDX) + string_list_append(&pack_garbage, path); +} + +static void git_config_date_string(const char *key, const char **output) +{ + if (git_config_get_string_const(key, output)) + return; + if (strcmp(*output, "now")) { + unsigned long now = approxidate("now"); + if (approxidate(*output) >= now) + git_die_config(key, _("Invalid %s: '%s'"), key, *output); } - return git_default_config(var, value, cb); } -static void append_option(const char **cmd, const char *opt, int max_length) +static void process_log_file(void) { - int i; + struct stat st; + if (!fstat(get_lock_file_fd(&log_lock), &st) && st.st_size) + commit_lock_file(&log_lock); + else + rollback_lock_file(&log_lock); +} - for (i = 0; cmd[i]; i++) - ; +static void process_log_file_at_exit(void) +{ + fflush(stderr); + process_log_file(); +} + +static void process_log_file_on_signal(int signo) +{ + process_log_file(); + sigchain_pop(signo); + raise(signo); +} + +static void gc_config(void) +{ + const char *value; + + if (!git_config_get_value("gc.packrefs", &value)) { + if (value && !strcmp(value, "notbare")) + pack_refs = -1; + else + pack_refs = git_config_bool("gc.packrefs", value); + } - if (i + 2 >= max_length) - die(_("Too many options specified")); - cmd[i++] = opt; - cmd[i] = NULL; + git_config_get_int("gc.aggressivewindow", &aggressive_window); + git_config_get_int("gc.aggressivedepth", &aggressive_depth); + git_config_get_int("gc.auto", &gc_auto_threshold); + git_config_get_int("gc.autopacklimit", &gc_auto_pack_limit); + git_config_get_bool("gc.autodetach", &detach_auto); + git_config_date_string("gc.pruneexpire", &prune_expire); + git_config_date_string("gc.worktreepruneexpire", &prune_worktrees_expire); + git_config(git_default_config, NULL); } static int too_many_loose_objects(void) @@ -144,6 +180,17 @@ static int too_many_packs(void) return gc_auto_pack_limit <= cnt; } +static void add_repack_all_option(void) +{ + if (prune_expire && !strcmp(prune_expire, "now")) + argv_array_push(&repack, "-a"); + else { + argv_array_push(&repack, "-A"); + if (prune_expire) + argv_array_pushf(&repack, "--unpack-unreachable=%s", prune_expire); + } +} + static int need_to_gc(void) { /* @@ -160,39 +207,142 @@ static int need_to_gc(void) * there is no need. */ if (too_many_packs()) - append_option(argv_repack, - prune_expire && !strcmp(prune_expire, "now") ? - "-a" : "-A", - MAX_ADD); + add_repack_all_option(); else if (!too_many_loose_objects()) return 0; - if (run_hook(NULL, "pre-auto-gc", NULL)) + if (run_hook_le(NULL, "pre-auto-gc", NULL)) return 0; return 1; } +/* return NULL on success, else hostname running the gc */ +static const char *lock_repo_for_gc(int force, pid_t* ret_pid) +{ + static struct lock_file lock; + char my_host[128]; + struct strbuf sb = STRBUF_INIT; + struct stat st; + uintmax_t pid; + FILE *fp; + int fd; + char *pidfile_path; + + if (is_tempfile_active(&pidfile)) + /* already locked */ + return NULL; + + if (gethostname(my_host, sizeof(my_host))) + xsnprintf(my_host, sizeof(my_host), "unknown"); + + pidfile_path = git_pathdup("gc.pid"); + fd = hold_lock_file_for_update(&lock, pidfile_path, + LOCK_DIE_ON_ERROR); + if (!force) { + static char locking_host[128]; + int should_exit; + fp = fopen(pidfile_path, "r"); + memset(locking_host, 0, sizeof(locking_host)); + should_exit = + fp != NULL && + !fstat(fileno(fp), &st) && + /* + * 12 hour limit is very generous as gc should + * never take that long. On the other hand we + * don't really need a strict limit here, + * running gc --auto one day late is not a big + * problem. --force can be used in manual gc + * after the user verifies that no gc is + * running. + */ + time(NULL) - st.st_mtime <= 12 * 3600 && + fscanf(fp, "%"SCNuMAX" %127c", &pid, locking_host) == 2 && + /* be gentle to concurrent "gc" on remote hosts */ + (strcmp(locking_host, my_host) || !kill(pid, 0) || errno == EPERM); + if (fp != NULL) + fclose(fp); + if (should_exit) { + if (fd >= 0) + rollback_lock_file(&lock); + *ret_pid = pid; + free(pidfile_path); + return locking_host; + } + } + + strbuf_addf(&sb, "%"PRIuMAX" %s", + (uintmax_t) getpid(), my_host); + write_in_full(fd, sb.buf, sb.len); + strbuf_release(&sb); + commit_lock_file(&lock); + register_tempfile(&pidfile, pidfile_path); + free(pidfile_path); + return NULL; +} + +static int report_last_gc_error(void) +{ + struct strbuf sb = STRBUF_INIT; + int ret; + + ret = strbuf_read_file(&sb, git_path("gc.log"), 0); + if (ret > 0) + return error(_("The last gc run reported the following. " + "Please correct the root cause\n" + "and remove %s.\n" + "Automatic cleanup will not be performed " + "until the file is removed.\n\n" + "%s"), + git_path("gc.log"), sb.buf); + strbuf_release(&sb); + return 0; +} + +static int gc_before_repack(void) +{ + if (pack_refs && run_command_v_opt(pack_refs_cmd.argv, RUN_GIT_CMD)) + return error(FAILED_RUN, pack_refs_cmd.argv[0]); + + if (prune_reflogs && run_command_v_opt(reflog.argv, RUN_GIT_CMD)) + return error(FAILED_RUN, reflog.argv[0]); + + pack_refs = 0; + prune_reflogs = 0; + return 0; +} + int cmd_gc(int argc, const char **argv, const char *prefix) { int aggressive = 0; int auto_gc = 0; int quiet = 0; - char buf[80]; + int force = 0; + const char *name; + pid_t pid; + int daemonized = 0; struct option builtin_gc_options[] = { - OPT__QUIET(&quiet, "suppress progress reporting"), - { OPTION_STRING, 0, "prune", &prune_expire, "date", - "prune unreferenced objects", + OPT__QUIET(&quiet, N_("suppress progress reporting")), + { OPTION_STRING, 0, "prune", &prune_expire, N_("date"), + N_("prune unreferenced objects"), PARSE_OPT_OPTARG, NULL, (intptr_t)prune_expire }, - OPT_BOOLEAN(0, "aggressive", &aggressive, "be more thorough (increased runtime)"), - OPT_BOOLEAN(0, "auto", &auto_gc, "enable auto-gc mode"), + OPT_BOOL(0, "aggressive", &aggressive, N_("be more thorough (increased runtime)")), + OPT_BOOL(0, "auto", &auto_gc, N_("enable auto-gc mode")), + OPT_BOOL(0, "force", &force, N_("force running gc even if there may be another gc running")), OPT_END() }; if (argc == 2 && !strcmp(argv[1], "-h")) usage_with_options(builtin_gc_usage, builtin_gc_options); - git_config(gc_config, NULL); + argv_array_pushl(&pack_refs_cmd, "pack-refs", "--all", "--prune", NULL); + argv_array_pushl(&reflog, "reflog", "expire", "--all", NULL); + argv_array_pushl(&repack, "repack", "-d", "-l", NULL); + argv_array_pushl(&prune, "prune", "--expire", NULL); + argv_array_pushl(&prune_worktrees, "worktree", "prune", "--expire", NULL); + argv_array_pushl(&rerere, "rerere", "gc", NULL); + + gc_config(); if (pack_refs < 0) pack_refs = !is_bare_repository(); @@ -203,15 +353,14 @@ int cmd_gc(int argc, const char **argv, const char *prefix) usage_with_options(builtin_gc_usage, builtin_gc_options); if (aggressive) { - append_option(argv_repack, "-f", MAX_ADD); - append_option(argv_repack, "--depth=250", MAX_ADD); - if (aggressive_window > 0) { - sprintf(buf, "--window=%d", aggressive_window); - append_option(argv_repack, buf, MAX_ADD); - } + argv_array_push(&repack, "-f"); + if (aggressive_depth > 0) + argv_array_pushf(&repack, "--depth=%d", aggressive_depth); + if (aggressive_window > 0) + argv_array_pushf(&repack, "--window=%d", aggressive_window); } if (quiet) - append_option(argv_repack, "-q", MAX_ADD); + argv_array_push(&repack, "-q"); if (auto_gc) { /* @@ -219,38 +368,74 @@ int cmd_gc(int argc, const char **argv, const char *prefix) */ if (!need_to_gc()) return 0; - if (quiet) - fprintf(stderr, _("Auto packing the repository for optimum performance.\n")); - else - fprintf(stderr, - _("Auto packing the repository for optimum performance. You may also\n" - "run \"git gc\" manually. See " - "\"git help gc\" for more information.\n")); + if (!quiet) { + if (detach_auto) + fprintf(stderr, _("Auto packing the repository in background for optimum performance.\n")); + else + fprintf(stderr, _("Auto packing the repository for optimum performance.\n")); + fprintf(stderr, _("See \"git help gc\" for manual housekeeping.\n")); + } + if (detach_auto) { + if (report_last_gc_error()) + return -1; + + if (gc_before_repack()) + return -1; + /* + * failure to daemonize is ok, we'll continue + * in foreground + */ + daemonized = !daemonize(); + } } else - append_option(argv_repack, - prune_expire && !strcmp(prune_expire, "now") - ? "-a" : "-A", - MAX_ADD); - - if (pack_refs && run_command_v_opt(argv_pack_refs, RUN_GIT_CMD)) - return error(FAILED_RUN, argv_pack_refs[0]); - - if (run_command_v_opt(argv_reflog, RUN_GIT_CMD)) - return error(FAILED_RUN, argv_reflog[0]); - - if (run_command_v_opt(argv_repack, RUN_GIT_CMD)) - return error(FAILED_RUN, argv_repack[0]); - - if (prune_expire) { - argv_prune[2] = prune_expire; - if (quiet) - argv_prune[3] = "--no-progress"; - if (run_command_v_opt(argv_prune, RUN_GIT_CMD)) - return error(FAILED_RUN, argv_prune[0]); + add_repack_all_option(); + + name = lock_repo_for_gc(force, &pid); + if (name) { + if (auto_gc) + return 0; /* be quiet on --auto */ + die(_("gc is already running on machine '%s' pid %"PRIuMAX" (use --force if not)"), + name, (uintmax_t)pid); + } + + if (daemonized) { + hold_lock_file_for_update(&log_lock, + git_path("gc.log"), + LOCK_DIE_ON_ERROR); + dup2(get_lock_file_fd(&log_lock), 2); + sigchain_push_common(process_log_file_on_signal); + atexit(process_log_file_at_exit); } - if (run_command_v_opt(argv_rerere, RUN_GIT_CMD)) - return error(FAILED_RUN, argv_rerere[0]); + if (gc_before_repack()) + return -1; + + if (!repository_format_precious_objects) { + if (run_command_v_opt(repack.argv, RUN_GIT_CMD)) + return error(FAILED_RUN, repack.argv[0]); + + if (prune_expire) { + argv_array_push(&prune, prune_expire); + if (quiet) + argv_array_push(&prune, "--no-progress"); + if (run_command_v_opt(prune.argv, RUN_GIT_CMD)) + return error(FAILED_RUN, prune.argv[0]); + } + } + + if (prune_worktrees_expire) { + argv_array_push(&prune_worktrees, prune_worktrees_expire); + if (run_command_v_opt(prune_worktrees.argv, RUN_GIT_CMD)) + return error(FAILED_RUN, prune_worktrees.argv[0]); + } + + if (run_command_v_opt(rerere.argv, RUN_GIT_CMD)) + return error(FAILED_RUN, rerere.argv[0]); + + report_garbage = report_pack_garbage; + reprepare_packed_git(); + if (pack_garbage.nr > 0) + clean_pack_garbage(); if (auto_gc && too_many_loose_objects()) warning(_("There are too many unreachable loose objects; " diff --git a/builtin/get-tar-commit-id.c b/builtin/get-tar-commit-id.c new file mode 100644 index 0000000000..e21c5416cd --- /dev/null +++ b/builtin/get-tar-commit-id.c @@ -0,0 +1,41 @@ +/* + * Copyright (c) 2005, 2006 Rene Scharfe + */ +#include "cache.h" +#include "commit.h" +#include "tar.h" +#include "builtin.h" +#include "quote.h" + +static const char builtin_get_tar_commit_id_usage[] = +"git get-tar-commit-id"; + +/* ustar header + extended global header content */ +#define RECORDSIZE (512) +#define HEADERSIZE (2 * RECORDSIZE) + +int cmd_get_tar_commit_id(int argc, const char **argv, const char *prefix) +{ + char buffer[HEADERSIZE]; + struct ustar_header *header = (struct ustar_header *)buffer; + char *content = buffer + RECORDSIZE; + const char *comment; + ssize_t n; + + if (argc != 1) + usage(builtin_get_tar_commit_id_usage); + + n = read_in_full(0, buffer, HEADERSIZE); + if (n < HEADERSIZE) + die("git get-tar-commit-id: read error"); + if (header->typeflag[0] != 'g') + return 1; + if (!skip_prefix(content, "52 comment=", &comment)) + return 1; + + n = write_in_full(1, comment, 41); + if (n < 41) + die_errno("git get-tar-commit-id: write error"); + + return 0; +} diff --git a/builtin/grep.c b/builtin/grep.c index 5c2ae94e55..462e607901 100644 --- a/builtin/grep.c +++ b/builtin/grep.c @@ -17,37 +17,25 @@ #include "grep.h" #include "quote.h" #include "dir.h" +#include "pathspec.h" static char const * const grep_usage[] = { - "git grep [options] [-e] <pattern> [<rev>...] [[--] <path>...]", + N_("git grep [<options>] [-e] <pattern> [<rev>...] [[--] <path>...]"), NULL }; -static int use_threads = 1; +#define GREP_NUM_THREADS_DEFAULT 8 +static int num_threads; #ifndef NO_PTHREADS -#define THREADS 8 -static pthread_t threads[THREADS]; - -static void *load_sha1(const unsigned char *sha1, unsigned long *size, - const char *name); -static void *load_file(const char *filename, size_t *sz); - -enum work_type {WORK_SHA1, WORK_FILE}; +static pthread_t *threads; /* We use one producer thread and THREADS consumer * threads. The producer adds struct work_items to 'todo' and the * consumers pick work items from the same array. */ struct work_item { - enum work_type type; - char *name; - - /* if type == WORK_SHA1, then 'identifier' is a SHA1, - * otherwise type == WORK_FILE, and 'identifier' is a NUL - * terminated filename. - */ - void *identifier; + struct grep_source source; char done; struct strbuf out; }; @@ -75,31 +63,16 @@ static pthread_mutex_t grep_mutex; static inline void grep_lock(void) { - if (use_threads) + if (num_threads) pthread_mutex_lock(&grep_mutex); } static inline void grep_unlock(void) { - if (use_threads) + if (num_threads) pthread_mutex_unlock(&grep_mutex); } -/* Used to serialize calls to read_sha1_file. */ -static pthread_mutex_t read_sha1_mutex; - -static inline void read_sha1_lock(void) -{ - if (use_threads) - pthread_mutex_lock(&read_sha1_mutex); -} - -static inline void read_sha1_unlock(void) -{ - if (use_threads) - pthread_mutex_unlock(&read_sha1_mutex); -} - /* Signalled when a new work_item is added to todo. */ static pthread_cond_t cond_add; @@ -113,7 +86,8 @@ static pthread_cond_t cond_result; static int skip_first_line; -static void add_work(enum work_type type, char *name, void *id) +static void add_work(struct grep_opt *opt, enum grep_source_type type, + const char *name, const char *path, const void *id) { grep_lock(); @@ -121,9 +95,9 @@ static void add_work(enum work_type type, char *name, void *id) pthread_cond_wait(&cond_write, &grep_mutex); } - todo[todo_end].type = type; - todo[todo_end].name = name; - todo[todo_end].identifier = id; + grep_source_init(&todo[todo_end].source, type, name, path, id); + if (opt->binary != GREP_BINARY_TEXT) + grep_source_load_driver(&todo[todo_end].source); todo[todo_end].done = 0; strbuf_reset(&todo[todo_end].out); todo_end = (todo_end + 1) % ARRAY_SIZE(todo); @@ -151,21 +125,6 @@ static struct work_item *get_work(void) return ret; } -static void grep_sha1_async(struct grep_opt *opt, char *name, - const unsigned char *sha1) -{ - unsigned char *s; - s = xmalloc(20); - memcpy(s, sha1, 20); - add_work(WORK_SHA1, name, s); -} - -static void grep_file_async(struct grep_opt *opt, char *name, - const char *filename) -{ - add_work(WORK_FILE, name, xstrdup(filename)); -} - static void work_done(struct work_item *w) { int old_done; @@ -192,8 +151,7 @@ static void work_done(struct work_item *w) write_or_die(1, p, len); } - free(w->name); - free(w->identifier); + grep_source_clear(&w->source); } if (old_done != todo_done) @@ -216,25 +174,8 @@ static void *run(void *arg) break; opt->output_priv = w; - if (w->type == WORK_SHA1) { - unsigned long sz; - void* data = load_sha1(w->identifier, &sz, w->name); - - if (data) { - hit |= grep_buffer(opt, w->name, data, sz); - free(data); - } - } else if (w->type == WORK_FILE) { - size_t sz; - void* data = load_file(w->identifier, &sz); - if (data) { - hit |= grep_buffer(opt, w->name, data, sz); - free(data); - } - } else { - assert(0); - } - + hit |= grep_source(opt, &w->source); + grep_source_clear_data(&w->source); work_done(w); } free_grep_patterns(arg); @@ -254,20 +195,23 @@ static void start_threads(struct grep_opt *opt) int i; pthread_mutex_init(&grep_mutex, NULL); - pthread_mutex_init(&read_sha1_mutex, NULL); + pthread_mutex_init(&grep_read_mutex, NULL); pthread_mutex_init(&grep_attr_mutex, NULL); pthread_cond_init(&cond_add, NULL); pthread_cond_init(&cond_write, NULL); pthread_cond_init(&cond_result, NULL); + grep_use_locks = 1; for (i = 0; i < ARRAY_SIZE(todo); i++) { strbuf_init(&todo[i].out, 0); } - for (i = 0; i < ARRAY_SIZE(threads); i++) { + threads = xcalloc(num_threads, sizeof(*threads)); + for (i = 0; i < num_threads; i++) { int err; struct grep_opt *o = grep_opt_dup(opt); o->output = strbuf_out; + o->debug = 0; compile_grep_patterns(o); err = pthread_create(&threads[i], NULL, run, o); @@ -295,24 +239,25 @@ static int wait_all(void) pthread_cond_broadcast(&cond_add); grep_unlock(); - for (i = 0; i < ARRAY_SIZE(threads); i++) { + for (i = 0; i < num_threads; i++) { void *h; pthread_join(threads[i], &h); hit |= (int) (intptr_t) h; } + free(threads); + pthread_mutex_destroy(&grep_mutex); - pthread_mutex_destroy(&read_sha1_mutex); + pthread_mutex_destroy(&grep_read_mutex); pthread_mutex_destroy(&grep_attr_mutex); pthread_cond_destroy(&cond_add); pthread_cond_destroy(&cond_write); pthread_cond_destroy(&cond_result); + grep_use_locks = 0; return hit; } #else /* !NO_PTHREADS */ -#define read_sha1_lock() -#define read_sha1_unlock() static int wait_all(void) { @@ -320,173 +265,90 @@ static int wait_all(void) } #endif -static int grep_config(const char *var, const char *value, void *cb) +static int grep_cmd_config(const char *var, const char *value, void *cb) { - struct grep_opt *opt = cb; - char *color = NULL; - - switch (userdiff_config(var, value)) { - case 0: break; - case -1: return -1; - default: return 0; - } - - if (!strcmp(var, "grep.extendedregexp")) { - if (git_config_bool(var, value)) - opt->regflags |= REG_EXTENDED; - else - opt->regflags &= ~REG_EXTENDED; - return 0; - } + int st = grep_config(var, value, cb); + if (git_color_default_config(var, value, cb) < 0) + st = -1; - if (!strcmp(var, "grep.linenumber")) { - opt->linenum = git_config_bool(var, value); - return 0; + if (!strcmp(var, "grep.threads")) { + num_threads = git_config_int(var, value); + if (num_threads < 0) + die(_("invalid number of threads specified (%d) for %s"), + num_threads, var); } - if (!strcmp(var, "color.grep")) - opt->color = git_config_colorbool(var, value); - else if (!strcmp(var, "color.grep.context")) - color = opt->color_context; - else if (!strcmp(var, "color.grep.filename")) - color = opt->color_filename; - else if (!strcmp(var, "color.grep.function")) - color = opt->color_function; - else if (!strcmp(var, "color.grep.linenumber")) - color = opt->color_lineno; - else if (!strcmp(var, "color.grep.match")) - color = opt->color_match; - else if (!strcmp(var, "color.grep.selected")) - color = opt->color_selected; - else if (!strcmp(var, "color.grep.separator")) - color = opt->color_sep; - else - return git_color_default_config(var, value, cb); - if (color) { - if (!value) - return config_error_nonbool(var); - color_parse(value, var, color); - } - return 0; + return st; } static void *lock_and_read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size) { void *data; - read_sha1_lock(); + grep_read_lock(); data = read_sha1_file(sha1, type, size); - read_sha1_unlock(); - return data; -} - -static void *load_sha1(const unsigned char *sha1, unsigned long *size, - const char *name) -{ - enum object_type type; - void *data = lock_and_read_sha1_file(sha1, &type, size); - - if (!data) - error(_("'%s': unable to read %s"), name, sha1_to_hex(sha1)); - + grep_read_unlock(); return data; } static int grep_sha1(struct grep_opt *opt, const unsigned char *sha1, - const char *filename, int tree_name_len) + const char *filename, int tree_name_len, + const char *path) { struct strbuf pathbuf = STRBUF_INIT; - char *name; if (opt->relative && opt->prefix_length) { - quote_path_relative(filename + tree_name_len, -1, &pathbuf, - opt->prefix); + quote_path_relative(filename + tree_name_len, opt->prefix, &pathbuf); strbuf_insert(&pathbuf, 0, filename, tree_name_len); } else { strbuf_addstr(&pathbuf, filename); } - name = strbuf_detach(&pathbuf, NULL); - #ifndef NO_PTHREADS - if (use_threads) { - grep_sha1_async(opt, name, sha1); + if (num_threads) { + add_work(opt, GREP_SOURCE_SHA1, pathbuf.buf, path, sha1); + strbuf_release(&pathbuf); return 0; } else #endif { + struct grep_source gs; int hit; - unsigned long sz; - void *data = load_sha1(sha1, &sz, name); - if (!data) - hit = 0; - else - hit = grep_buffer(opt, name, data, sz); - - free(data); - free(name); - return hit; - } -} -static void *load_file(const char *filename, size_t *sz) -{ - struct stat st; - char *data; - int i; + grep_source_init(&gs, GREP_SOURCE_SHA1, pathbuf.buf, path, sha1); + strbuf_release(&pathbuf); + hit = grep_source(opt, &gs); - if (lstat(filename, &st) < 0) { - err_ret: - if (errno != ENOENT) - error(_("'%s': %s"), filename, strerror(errno)); - return NULL; - } - if (!S_ISREG(st.st_mode)) - return NULL; - *sz = xsize_t(st.st_size); - i = open(filename, O_RDONLY); - if (i < 0) - goto err_ret; - data = xmalloc(*sz + 1); - if (st.st_size != read_in_full(i, data, *sz)) { - error(_("'%s': short read %s"), filename, strerror(errno)); - close(i); - free(data); - return NULL; + grep_source_clear(&gs); + return hit; } - close(i); - data[*sz] = 0; - return data; } static int grep_file(struct grep_opt *opt, const char *filename) { struct strbuf buf = STRBUF_INIT; - char *name; if (opt->relative && opt->prefix_length) - quote_path_relative(filename, -1, &buf, opt->prefix); + quote_path_relative(filename, opt->prefix, &buf); else strbuf_addstr(&buf, filename); - name = strbuf_detach(&buf, NULL); #ifndef NO_PTHREADS - if (use_threads) { - grep_file_async(opt, name, filename); + if (num_threads) { + add_work(opt, GREP_SOURCE_FILE, buf.buf, filename, filename); + strbuf_release(&buf); return 0; } else #endif { + struct grep_source gs; int hit; - size_t sz; - void *data = load_file(filename, &sz); - if (!data) - hit = 0; - else - hit = grep_buffer(opt, name, data, sz); - free(data); - free(name); + grep_source_init(&gs, GREP_SOURCE_FILE, buf.buf, filename, filename); + strbuf_release(&buf); + hit = grep_source(opt, &gs); + + grep_source_clear(&gs); return hit; } } @@ -503,19 +365,17 @@ static void append_path(struct grep_opt *opt, const void *data, size_t len) static void run_pager(struct grep_opt *opt, const char *prefix) { struct string_list *path_list = opt->output_priv; - const char **argv = xmalloc(sizeof(const char *) * (path_list->nr + 1)); + struct child_process child = CHILD_PROCESS_INIT; int i, status; for (i = 0; i < path_list->nr; i++) - argv[i] = path_list->items[i].string; - argv[path_list->nr] = NULL; + argv_array_push(&child.args, path_list->items[i].string); + child.dir = prefix; + child.use_shell = 1; - if (prefix && chdir(prefix)) - die(_("Failed to chdir: %s"), prefix); - status = run_command_v_opt(argv, RUN_USING_SHELL); + status = run_command(&child); if (status) exit(status); - free(argv); } static int grep_cache(struct grep_opt *opt, const struct pathspec *pathspec, int cached) @@ -525,10 +385,10 @@ static int grep_cache(struct grep_opt *opt, const struct pathspec *pathspec, int read_cache(); for (nr = 0; nr < active_nr; nr++) { - struct cache_entry *ce = active_cache[nr]; - if (!S_ISREG(ce->ce_mode)) + const struct cache_entry *ce = active_cache[nr]; + if (!S_ISREG(ce->ce_mode) || ce_intent_to_add(ce)) continue; - if (!match_pathspec_depth(pathspec, ce->name, ce_namelen(ce), 0, NULL)) + if (!ce_path_match(ce, pathspec, NULL)) continue; /* * If CE_VALID is on, we assume worktree file and its cache entry @@ -538,7 +398,7 @@ static int grep_cache(struct grep_opt *opt, const struct pathspec *pathspec, int if (cached || (ce->ce_flags & CE_VALID) || ce_skip_worktree(ce)) { if (ce_stage(ce)) continue; - hit |= grep_sha1(opt, ce->sha1, ce->name, 0); + hit |= grep_sha1(opt, ce->sha1, ce->name, 0, ce->name); } else hit |= grep_file(opt, ce->name); @@ -556,7 +416,8 @@ static int grep_cache(struct grep_opt *opt, const struct pathspec *pathspec, int } static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec, - struct tree_desc *tree, struct strbuf *base, int tn_len) + struct tree_desc *tree, struct strbuf *base, int tn_len, + int check_attr) { int hit = 0; enum interesting match = entry_not_interesting; @@ -577,7 +438,8 @@ static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec, strbuf_add(base, entry.path, te_len); if (S_ISREG(entry.mode)) { - hit |= grep_sha1(opt, entry.sha1, base->buf, tn_len); + hit |= grep_sha1(opt, entry.oid->hash, base->buf, tn_len, + check_attr ? base->buf + tn_len : NULL); } else if (S_ISDIR(entry.mode)) { enum object_type type; @@ -585,14 +447,15 @@ static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec, void *data; unsigned long size; - data = lock_and_read_sha1_file(entry.sha1, &type, &size); + data = lock_and_read_sha1_file(entry.oid->hash, &type, &size); if (!data) die(_("unable to read tree (%s)"), - sha1_to_hex(entry.sha1)); + oid_to_hex(entry.oid)); strbuf_addch(base, '/'); init_tree_desc(&sub, data, size); - hit |= grep_tree(opt, pathspec, &sub, base, tn_len); + hit |= grep_tree(opt, pathspec, &sub, base, tn_len, + check_attr); free(data); } strbuf_setlen(base, old_baselen); @@ -604,10 +467,10 @@ static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec, } static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec, - struct object *obj, const char *name) + struct object *obj, const char *name, const char *path) { if (obj->type == OBJ_BLOB) - return grep_sha1(opt, obj->sha1, name, 0); + return grep_sha1(opt, obj->oid.hash, name, 0, path); if (obj->type == OBJ_COMMIT || obj->type == OBJ_TREE) { struct tree_desc tree; void *data; @@ -615,13 +478,13 @@ static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec, struct strbuf base; int hit, len; - read_sha1_lock(); - data = read_object_with_reference(obj->sha1, tree_type, + grep_read_lock(); + data = read_object_with_reference(obj->oid.hash, tree_type, &size, NULL); - read_sha1_unlock(); + grep_read_unlock(); if (!data) - die(_("unable to read tree (%s)"), sha1_to_hex(obj->sha1)); + die(_("unable to read tree (%s)"), oid_to_hex(&obj->oid)); len = name ? strlen(name) : 0; strbuf_init(&base, PATH_MAX + len + 1); @@ -630,7 +493,8 @@ static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec, strbuf_addch(&base, ':'); } init_tree_desc(&tree, data, size); - hit = grep_tree(opt, pathspec, &tree, &base, base.len); + hit = grep_tree(opt, pathspec, &tree, &base, base.len, + obj->type == OBJ_COMMIT); strbuf_release(&base); free(data); return hit; @@ -648,7 +512,7 @@ static int grep_objects(struct grep_opt *opt, const struct pathspec *pathspec, for (i = 0; i < nr; i++) { struct object *real_obj; real_obj = deref_tag(list->objects[i].item, NULL, 0); - if (grep_object(opt, pathspec, real_obj, list->objects[i].name)) { + if (grep_object(opt, pathspec, real_obj, list->objects[i].name, list->objects[i].path)) { hit = 1; if (opt->status_only) break; @@ -658,20 +522,20 @@ static int grep_objects(struct grep_opt *opt, const struct pathspec *pathspec, } static int grep_directory(struct grep_opt *opt, const struct pathspec *pathspec, - int exc_std) + int exc_std, int use_index) { struct dir_struct dir; int i, hit = 0; memset(&dir, 0, sizeof(dir)); + if (!use_index) + dir.flags |= DIR_NO_GITLINKS; if (exc_std) setup_standard_excludes(&dir); - fill_directory(&dir, pathspec->raw); + fill_directory(&dir, pathspec); for (i = 0; i < dir.nr; i++) { - const char *name = dir.entries[i]->name; - int namelen = strlen(name); - if (!match_pathspec_depth(pathspec, name, namelen, 0, NULL)) + if (!dir_path_match(dir.entries[i], pathspec, 0, NULL)) continue; hit |= grep_file(opt, dir.entries[i]->name); if (hit && opt->status_only) @@ -711,16 +575,13 @@ static int file_callback(const struct option *opt, const char *arg, int unset) patterns = from_stdin ? stdin : fopen(arg, "r"); if (!patterns) die_errno(_("cannot open '%s'"), arg); - while (strbuf_getline(&sb, patterns, '\n') == 0) { - char *s; - size_t len; - + while (strbuf_getline(&sb, patterns) == 0) { /* ignore empty line like grep does */ if (sb.len == 0) continue; - s = strbuf_detach(&sb, &len); - append_grep_pat(grep_opt, s, len, arg, ++lno, GREP_PATTERN); + append_grep_pat(grep_opt, sb.buf, sb.len, arg, ++lno, + GREP_PATTERN); } if (!from_stdin) fclose(patterns); @@ -764,11 +625,6 @@ static int pattern_callback(const struct option *opt, const char *arg, return 0; } -static int help_callback(const struct option *opt, const char *arg, int unset) -{ - return -1; -} - int cmd_grep(int argc, const char **argv, const char *prefix) { int hit = 0; @@ -778,104 +634,99 @@ int cmd_grep(int argc, const char **argv, const char *prefix) const char *show_in_pager = NULL, *default_pager = "dummy"; struct grep_opt opt; struct object_array list = OBJECT_ARRAY_INIT; - const char **paths = NULL; struct pathspec pathspec; struct string_list path_list = STRING_LIST_INIT_NODUP; int i; int dummy; int use_index = 1; - enum { - pattern_type_unspecified = 0, - pattern_type_bre, - pattern_type_ere, - pattern_type_fixed, - pattern_type_pcre, - }; - int pattern_type = pattern_type_unspecified; + int pattern_type_arg = GREP_PATTERN_TYPE_UNSPECIFIED; struct option options[] = { - OPT_BOOLEAN(0, "cached", &cached, - "search in index instead of in the work tree"), - { OPTION_BOOLEAN, 0, "index", &use_index, NULL, - "finds in contents not managed by git", - PARSE_OPT_NOARG | PARSE_OPT_NEGHELP }, - OPT_BOOLEAN(0, "untracked", &untracked, - "search in both tracked and untracked files"), + OPT_BOOL(0, "cached", &cached, + N_("search in index instead of in the work tree")), + OPT_NEGBIT(0, "no-index", &use_index, + N_("find in contents not managed by git"), 1), + OPT_BOOL(0, "untracked", &untracked, + N_("search in both tracked and untracked files")), OPT_SET_INT(0, "exclude-standard", &opt_exclude, - "search also in ignored files", 1), + N_("ignore files specified via '.gitignore'"), 1), OPT_GROUP(""), - OPT_BOOLEAN('v', "invert-match", &opt.invert, - "show non-matching lines"), - OPT_BOOLEAN('i', "ignore-case", &opt.ignore_case, - "case insensitive matching"), - OPT_BOOLEAN('w', "word-regexp", &opt.word_regexp, - "match patterns only at word boundaries"), + OPT_BOOL('v', "invert-match", &opt.invert, + N_("show non-matching lines")), + OPT_BOOL('i', "ignore-case", &opt.ignore_case, + N_("case insensitive matching")), + OPT_BOOL('w', "word-regexp", &opt.word_regexp, + N_("match patterns only at word boundaries")), OPT_SET_INT('a', "text", &opt.binary, - "process binary files as text", GREP_BINARY_TEXT), + N_("process binary files as text"), GREP_BINARY_TEXT), OPT_SET_INT('I', NULL, &opt.binary, - "don't match patterns in binary files", + N_("don't match patterns in binary files"), GREP_BINARY_NOMATCH), - { OPTION_INTEGER, 0, "max-depth", &opt.max_depth, "depth", - "descend at most <depth> levels", PARSE_OPT_NONEG, + OPT_BOOL(0, "textconv", &opt.allow_textconv, + N_("process binary files with textconv filters")), + { OPTION_INTEGER, 0, "max-depth", &opt.max_depth, N_("depth"), + N_("descend at most <depth> levels"), PARSE_OPT_NONEG, NULL, 1 }, OPT_GROUP(""), - OPT_SET_INT('E', "extended-regexp", &pattern_type, - "use extended POSIX regular expressions", - pattern_type_ere), - OPT_SET_INT('G', "basic-regexp", &pattern_type, - "use basic POSIX regular expressions (default)", - pattern_type_bre), - OPT_SET_INT('F', "fixed-strings", &pattern_type, - "interpret patterns as fixed strings", - pattern_type_fixed), - OPT_SET_INT('P', "perl-regexp", &pattern_type, - "use Perl-compatible regular expressions", - pattern_type_pcre), + OPT_SET_INT('E', "extended-regexp", &pattern_type_arg, + N_("use extended POSIX regular expressions"), + GREP_PATTERN_TYPE_ERE), + OPT_SET_INT('G', "basic-regexp", &pattern_type_arg, + N_("use basic POSIX regular expressions (default)"), + GREP_PATTERN_TYPE_BRE), + OPT_SET_INT('F', "fixed-strings", &pattern_type_arg, + N_("interpret patterns as fixed strings"), + GREP_PATTERN_TYPE_FIXED), + OPT_SET_INT('P', "perl-regexp", &pattern_type_arg, + N_("use Perl-compatible regular expressions"), + GREP_PATTERN_TYPE_PCRE), OPT_GROUP(""), - OPT_BOOLEAN('n', "line-number", &opt.linenum, "show line numbers"), - OPT_NEGBIT('h', NULL, &opt.pathname, "don't show filenames", 1), - OPT_BIT('H', NULL, &opt.pathname, "show filenames", 1), + OPT_BOOL('n', "line-number", &opt.linenum, N_("show line numbers")), + OPT_NEGBIT('h', NULL, &opt.pathname, N_("don't show filenames"), 1), + OPT_BIT('H', NULL, &opt.pathname, N_("show filenames"), 1), OPT_NEGBIT(0, "full-name", &opt.relative, - "show filenames relative to top directory", 1), - OPT_BOOLEAN('l', "files-with-matches", &opt.name_only, - "show only filenames instead of matching lines"), - OPT_BOOLEAN(0, "name-only", &opt.name_only, - "synonym for --files-with-matches"), - OPT_BOOLEAN('L', "files-without-match", + N_("show filenames relative to top directory"), 1), + OPT_BOOL('l', "files-with-matches", &opt.name_only, + N_("show only filenames instead of matching lines")), + OPT_BOOL(0, "name-only", &opt.name_only, + N_("synonym for --files-with-matches")), + OPT_BOOL('L', "files-without-match", &opt.unmatch_name_only, - "show only the names of files without match"), - OPT_BOOLEAN('z', "null", &opt.null_following_name, - "print NUL after filenames"), - OPT_BOOLEAN('c', "count", &opt.count, - "show the number of matches instead of matching lines"), - OPT__COLOR(&opt.color, "highlight matches"), - OPT_BOOLEAN(0, "break", &opt.file_break, - "print empty line between matches from different files"), - OPT_BOOLEAN(0, "heading", &opt.heading, - "show filename only once above matches from same file"), + N_("show only the names of files without match")), + OPT_BOOL('z', "null", &opt.null_following_name, + N_("print NUL after filenames")), + OPT_BOOL('c', "count", &opt.count, + N_("show the number of matches instead of matching lines")), + OPT__COLOR(&opt.color, N_("highlight matches")), + OPT_BOOL(0, "break", &opt.file_break, + N_("print empty line between matches from different files")), + OPT_BOOL(0, "heading", &opt.heading, + N_("show filename only once above matches from same file")), OPT_GROUP(""), - OPT_CALLBACK('C', "context", &opt, "n", - "show <n> context lines before and after matches", + OPT_CALLBACK('C', "context", &opt, N_("n"), + N_("show <n> context lines before and after matches"), context_callback), OPT_INTEGER('B', "before-context", &opt.pre_context, - "show <n> context lines before matches"), + N_("show <n> context lines before matches")), OPT_INTEGER('A', "after-context", &opt.post_context, - "show <n> context lines after matches"), - OPT_NUMBER_CALLBACK(&opt, "shortcut for -C NUM", + N_("show <n> context lines after matches")), + OPT_INTEGER(0, "threads", &num_threads, + N_("use <n> worker threads")), + OPT_NUMBER_CALLBACK(&opt, N_("shortcut for -C NUM"), context_callback), - OPT_BOOLEAN('p', "show-function", &opt.funcname, - "show a line with the function name before matches"), - OPT_BOOLEAN('W', "function-context", &opt.funcbody, - "show the surrounding function"), + OPT_BOOL('p', "show-function", &opt.funcname, + N_("show a line with the function name before matches")), + OPT_BOOL('W', "function-context", &opt.funcbody, + N_("show the surrounding function")), OPT_GROUP(""), - OPT_CALLBACK('f', NULL, &opt, "file", - "read patterns from file", file_callback), - { OPTION_CALLBACK, 'e', NULL, &opt, "pattern", - "match <pattern>", PARSE_OPT_NONEG, pattern_callback }, + OPT_CALLBACK('f', NULL, &opt, N_("file"), + N_("read patterns from file"), file_callback), + { OPTION_CALLBACK, 'e', NULL, &opt, N_("pattern"), + N_("match <pattern>"), PARSE_OPT_NONEG, pattern_callback }, { OPTION_CALLBACK, 0, "and", &opt, NULL, - "combine patterns specified with -e", + N_("combine patterns specified with -e"), PARSE_OPT_NOARG | PARSE_OPT_NONEG, and_callback }, - OPT_BOOLEAN(0, "or", &dummy, ""), + OPT_BOOL(0, "or", &dummy, ""), { OPTION_CALLBACK, 0, "not", &opt, NULL, "", PARSE_OPT_NOARG | PARSE_OPT_NONEG, not_callback }, { OPTION_CALLBACK, '(', NULL, &opt, NULL, "", @@ -885,46 +736,24 @@ int cmd_grep(int argc, const char **argv, const char *prefix) PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH, close_callback }, OPT__QUIET(&opt.status_only, - "indicate hit with exit status without output"), - OPT_BOOLEAN(0, "all-match", &opt.all_match, - "show only matches from files that match all patterns"), + N_("indicate hit with exit status without output")), + OPT_BOOL(0, "all-match", &opt.all_match, + N_("show only matches from files that match all patterns")), + { OPTION_SET_INT, 0, "debug", &opt.debug, NULL, + N_("show parse tree for grep expression"), + PARSE_OPT_NOARG | PARSE_OPT_HIDDEN, NULL, 1 }, OPT_GROUP(""), { OPTION_STRING, 'O', "open-files-in-pager", &show_in_pager, - "pager", "show matching files in the pager", + N_("pager"), N_("show matching files in the pager"), PARSE_OPT_OPTARG, NULL, (intptr_t)default_pager }, - OPT_BOOLEAN(0, "ext-grep", &external_grep_allowed__ignored, - "allow calling of grep(1) (ignored by this build)"), - { OPTION_CALLBACK, 0, "help-all", &options, NULL, "show usage", - PARSE_OPT_HIDDEN | PARSE_OPT_NOARG, help_callback }, + OPT_BOOL(0, "ext-grep", &external_grep_allowed__ignored, + N_("allow calling of grep(1) (ignored by this build)")), OPT_END() }; - /* - * 'git grep -h', unlike 'git grep -h <pattern>', is a request - * to show usage information and exit. - */ - if (argc == 2 && !strcmp(argv[1], "-h")) - usage_with_options(grep_usage, options); - - memset(&opt, 0, sizeof(opt)); - opt.prefix = prefix; - opt.prefix_length = (prefix && *prefix) ? strlen(prefix) : 0; - opt.relative = 1; - opt.pathname = 1; - opt.pattern_tail = &opt.pattern_list; - opt.header_tail = &opt.header_list; - opt.regflags = REG_NEWLINE; - opt.max_depth = -1; - - strcpy(opt.color_context, ""); - strcpy(opt.color_filename, ""); - strcpy(opt.color_function, ""); - strcpy(opt.color_lineno, ""); - strcpy(opt.color_match, GIT_COLOR_BOLD_RED); - strcpy(opt.color_selected, ""); - strcpy(opt.color_sep, GIT_COLOR_CYAN); - opt.color = -1; - git_config(grep_config, &opt); + init_grep_defaults(); + git_config(grep_cmd_config, NULL); + grep_init(&opt, prefix); /* * If there is no -- then the paths must exist in the working @@ -938,35 +767,19 @@ int cmd_grep(int argc, const char **argv, const char *prefix) */ argc = parse_options(argc, argv, prefix, options, grep_usage, PARSE_OPT_KEEP_DASHDASH | - PARSE_OPT_STOP_AT_NON_OPTION | - PARSE_OPT_NO_INTERNAL_HELP); - switch (pattern_type) { - case pattern_type_fixed: - opt.fixed = 1; - opt.pcre = 0; - break; - case pattern_type_bre: - opt.fixed = 0; - opt.pcre = 0; - opt.regflags &= ~REG_EXTENDED; - break; - case pattern_type_ere: - opt.fixed = 0; - opt.pcre = 0; - opt.regflags |= REG_EXTENDED; - break; - case pattern_type_pcre: - opt.fixed = 0; - opt.pcre = 1; - break; - default: - break; /* nothing */ + PARSE_OPT_STOP_AT_NON_OPTION); + grep_commit_pattern_type(pattern_type_arg, &opt); + + if (use_index && !startup_info->have_repository) { + int fallback = 0; + git_config_get_bool("grep.fallbacktonoindex", &fallback); + if (fallback) + use_index = 0; + else + /* die the same way as if we did it at the beginning */ + setup_git_directory(); } - if (use_index && !startup_info->have_repository) - /* die the same way as if we did it at the beginning */ - setup_git_directory(); - /* * skip a -- separator; we know it cannot be * separating revisions from pathnames if @@ -994,7 +807,6 @@ int cmd_grep(int argc, const char **argv, const char *prefix) opt.output_priv = &path_list; opt.output = append_path; string_list_append(&path_list, show_in_pager); - use_threads = 0; } if (!opt.pattern_list) @@ -1008,12 +820,13 @@ int cmd_grep(int argc, const char **argv, const char *prefix) for (i = 0; i < argc; i++) { const char *arg = argv[i]; unsigned char sha1[20]; + struct object_context oc; /* Is it a rev? */ - if (!get_sha1(arg, sha1)) { - struct object *object = parse_object(sha1); - if (!object) - die(_("bad object %s"), arg); - add_object_array(object, arg, &list); + if (!get_sha1_with_context(arg, 0, sha1, &oc)) { + struct object *object = parse_object_or_die(sha1, arg); + if (!seen_dashdash) + verify_non_filename(prefix, arg); + add_object_array_with_path(object, arg, &list, oc.mode, oc.path); continue; } if (!strcmp(arg, "--")) { @@ -1024,16 +837,18 @@ int cmd_grep(int argc, const char **argv, const char *prefix) } #ifndef NO_PTHREADS - if (list.nr || cached || online_cpus() == 1) - use_threads = 0; + if (list.nr || cached || show_in_pager) + num_threads = 0; + else if (num_threads == 0) + num_threads = GREP_NUM_THREADS_DEFAULT; + else if (num_threads < 0) + die(_("invalid number of threads specified (%d)"), num_threads); #else - use_threads = 0; + num_threads = 0; #endif - opt.use_threads = use_threads; - #ifndef NO_PTHREADS - if (use_threads) { + if (num_threads) { if (!(opt.name_only || opt.unmatch_name_only || opt.count) && (opt.pre_context || opt.post_context || opt.file_break || opt.funcbody)) @@ -1046,11 +861,13 @@ int cmd_grep(int argc, const char **argv, const char *prefix) if (!seen_dashdash) { int j; for (j = i; j < argc; j++) - verify_filename(prefix, argv[j]); + verify_filename(prefix, argv[j], j == i); } - paths = get_pathspec(prefix, argv + i); - init_pathspec(&pathspec, paths); + parse_pathspec(&pathspec, 0, + PATHSPEC_PREFER_CWD | + (opt.max_depth != -1 ? PATHSPEC_MAXDEPTH_VALID : 0), + prefix, argv + i); pathspec.max_depth = opt.max_depth; pathspec.recursive = 1; @@ -1064,6 +881,9 @@ int cmd_grep(int argc, const char **argv, const char *prefix) if (len > 4 && is_dir_sep(pager[len - 5])) pager += len - 4; + if (opt.ignore_case && !strcmp("less", pager)) + string_list_append(&path_list, "-I"); + if (!strcmp("less", pager) || !strcmp("vi", pager)) { struct strbuf buf = STRBUF_INIT; strbuf_addf(&buf, "+/%s%s", @@ -1074,7 +894,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix) } } - if (!show_in_pager) + if (!show_in_pager && !opt.status_only) setup_pager(); if (!use_index && (untracked || cached)) @@ -1084,7 +904,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix) int use_exclude = (opt_exclude < 0) ? use_index : !!opt_exclude; if (list.nr) die(_("--no-index or --untracked cannot be used with revs.")); - hit = grep_directory(&opt, &pathspec, use_exclude); + hit = grep_directory(&opt, &pathspec, use_exclude, use_index); } else if (0 <= opt_exclude) { die(_("--[no-]exclude-standard cannot be used for tracked contents.")); } else if (!list.nr) { @@ -1098,7 +918,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix) hit = grep_objects(&opt, &pathspec, &list); } - if (use_threads) + if (num_threads) hit |= wait_all(); if (hit && show_in_pager) run_pager(&opt, prefix); diff --git a/builtin/hash-object.c b/builtin/hash-object.c index 33911fd5e9..f7d3567dd0 100644 --- a/builtin/hash-object.c +++ b/builtin/hash-object.c @@ -10,86 +10,104 @@ #include "parse-options.h" #include "exec_cmd.h" -static void hash_fd(int fd, const char *type, int write_object, const char *path) +/* + * This is to create corrupt objects for debugging and as such it + * needs to bypass the data conversion performed by, and the type + * limitation imposed by, index_fd() and its callees. + */ +static int hash_literally(unsigned char *sha1, int fd, const char *type, unsigned flags) +{ + struct strbuf buf = STRBUF_INIT; + int ret; + + if (strbuf_read(&buf, fd, 4096) < 0) + ret = -1; + else + ret = hash_sha1_file_literally(buf.buf, buf.len, type, sha1, flags); + strbuf_release(&buf); + return ret; +} + +static void hash_fd(int fd, const char *type, const char *path, unsigned flags, + int literally) { struct stat st; unsigned char sha1[20]; - unsigned flags = (HASH_FORMAT_CHECK | - (write_object ? HASH_WRITE_OBJECT : 0)); if (fstat(fd, &st) < 0 || - index_fd(sha1, fd, &st, type_from_string(type), path, flags)) - die(write_object + (literally + ? hash_literally(sha1, fd, type, flags) + : index_fd(sha1, fd, &st, type_from_string(type), path, flags))) + die((flags & HASH_WRITE_OBJECT) ? "Unable to add %s to database" : "Unable to hash %s", path); printf("%s\n", sha1_to_hex(sha1)); maybe_flush_or_die(stdout, "hash to stdout"); } -static void hash_object(const char *path, const char *type, int write_object, - const char *vpath) +static void hash_object(const char *path, const char *type, const char *vpath, + unsigned flags, int literally) { int fd; fd = open(path, O_RDONLY); if (fd < 0) die_errno("Cannot open '%s'", path); - hash_fd(fd, type, write_object, vpath); + hash_fd(fd, type, vpath, flags, literally); } -static int no_filters; - -static void hash_stdin_paths(const char *type, int write_objects) +static void hash_stdin_paths(const char *type, int no_filters, unsigned flags, + int literally) { - struct strbuf buf = STRBUF_INIT, nbuf = STRBUF_INIT; + struct strbuf buf = STRBUF_INIT; + struct strbuf unquoted = STRBUF_INIT; - while (strbuf_getline(&buf, stdin, '\n') != EOF) { + while (strbuf_getline(&buf, stdin) != EOF) { if (buf.buf[0] == '"') { - strbuf_reset(&nbuf); - if (unquote_c_style(&nbuf, buf.buf, NULL)) + strbuf_reset(&unquoted); + if (unquote_c_style(&unquoted, buf.buf, NULL)) die("line is badly quoted"); - strbuf_swap(&buf, &nbuf); + strbuf_swap(&buf, &unquoted); } - hash_object(buf.buf, type, write_objects, - no_filters ? NULL : buf.buf); + hash_object(buf.buf, type, no_filters ? NULL : buf.buf, flags, + literally); } strbuf_release(&buf); - strbuf_release(&nbuf); + strbuf_release(&unquoted); } -static const char * const hash_object_usage[] = { - "git hash-object [-t <type>] [-w] [--path=<file>|--no-filters] [--stdin] [--] <file>...", - "git hash-object --stdin-paths < <list-of-paths>", - NULL -}; - -static const char *type; -static int write_object; -static int hashstdin; -static int stdin_paths; -static const char *vpath; - -static const struct option hash_object_options[] = { - OPT_STRING('t', NULL, &type, "type", "object type"), - OPT_BOOLEAN('w', NULL, &write_object, "write the object into the object database"), - OPT_BOOLEAN( 0 , "stdin", &hashstdin, "read the object from stdin"), - OPT_BOOLEAN( 0 , "stdin-paths", &stdin_paths, "read file names from stdin"), - OPT_BOOLEAN( 0 , "no-filters", &no_filters, "store file as is without filters"), - OPT_STRING( 0 , "path", &vpath, "file", "process file as it were from this path"), - OPT_END() -}; - int cmd_hash_object(int argc, const char **argv, const char *prefix) { + static const char * const hash_object_usage[] = { + N_("git hash-object [-t <type>] [-w] [--path=<file> | --no-filters] [--stdin] [--] <file>..."), + N_("git hash-object --stdin-paths"), + NULL + }; + const char *type = blob_type; + int hashstdin = 0; + int stdin_paths = 0; + int no_filters = 0; + int literally = 0; + unsigned flags = HASH_FORMAT_CHECK; + const char *vpath = NULL; + const struct option hash_object_options[] = { + OPT_STRING('t', NULL, &type, N_("type"), N_("object type")), + OPT_BIT('w', NULL, &flags, N_("write the object into the object database"), + HASH_WRITE_OBJECT), + OPT_COUNTUP( 0 , "stdin", &hashstdin, N_("read the object from stdin")), + OPT_BOOL( 0 , "stdin-paths", &stdin_paths, N_("read file names from stdin")), + OPT_BOOL( 0 , "no-filters", &no_filters, N_("store file as is without filters")), + OPT_BOOL( 0, "literally", &literally, N_("just hash any random garbage to create corrupt objects for debugging Git")), + OPT_STRING( 0 , "path", &vpath, N_("file"), N_("process file as it were from this path")), + OPT_END() + }; int i; int prefix_length = -1; const char *errstr = NULL; - type = blob_type; - argc = parse_options(argc, argv, NULL, hash_object_options, hash_object_usage, 0); - if (write_object) { + if (flags & HASH_WRITE_OBJECT) { prefix = setup_git_directory(); prefix_length = prefix ? strlen(prefix) : 0; if (vpath && prefix) @@ -119,19 +137,19 @@ int cmd_hash_object(int argc, const char **argv, const char *prefix) } if (hashstdin) - hash_fd(0, type, write_object, vpath); + hash_fd(0, type, vpath, flags, literally); for (i = 0 ; i < argc; i++) { const char *arg = argv[i]; if (0 <= prefix_length) arg = prefix_filename(prefix, prefix_length, arg); - hash_object(arg, type, write_object, - no_filters ? NULL : vpath ? vpath : arg); + hash_object(arg, type, no_filters ? NULL : vpath ? vpath : arg, + flags, literally); } if (stdin_paths) - hash_stdin_paths(type, write_object); + hash_stdin_paths(type, no_filters, flags, literally); return 0; } diff --git a/builtin/help.c b/builtin/help.c index 61ff79839b..88480131cf 100644 --- a/builtin/help.c +++ b/builtin/help.c @@ -1,16 +1,18 @@ /* - * builtin-help.c - * * Builtin help command */ #include "cache.h" #include "builtin.h" #include "exec_cmd.h" -#include "common-cmds.h" #include "parse-options.h" #include "run-command.h" +#include "column.h" #include "help.h" +#ifndef DEFAULT_HELP_FORMAT +#define DEFAULT_HELP_FORMAT "man" +#endif + static struct man_viewer_list { struct man_viewer_list *next; char name[FLEX_ARRAY]; @@ -29,20 +31,25 @@ enum help_format { HELP_FORMAT_WEB }; +static const char *html_path; + static int show_all = 0; +static int show_guides = 0; +static unsigned int colopts; static enum help_format help_format = HELP_FORMAT_NONE; static struct option builtin_help_options[] = { - OPT_BOOLEAN('a', "all", &show_all, "print all available commands"), - OPT_SET_INT('m', "man", &help_format, "show man page", HELP_FORMAT_MAN), - OPT_SET_INT('w', "web", &help_format, "show manual in web browser", + OPT_BOOL('a', "all", &show_all, N_("print all available commands")), + OPT_BOOL('g', "guides", &show_guides, N_("print list of useful guides")), + OPT_SET_INT('m', "man", &help_format, N_("show man page"), HELP_FORMAT_MAN), + OPT_SET_INT('w', "web", &help_format, N_("show manual in web browser"), HELP_FORMAT_WEB), - OPT_SET_INT('i', "info", &help_format, "show info page", + OPT_SET_INT('i', "info", &help_format, N_("show info page"), HELP_FORMAT_INFO), OPT_END(), }; static const char * const builtin_help_usage[] = { - "git help [--all] [--man|--web|--info] [command]", + N_("git help [--all] [--guides] [--man | --web | --info] [<command>]"), NULL }; @@ -54,7 +61,7 @@ static enum help_format parse_help_format(const char *format) return HELP_FORMAT_INFO; if (!strcmp(format, "web") || !strcmp(format, "html")) return HELP_FORMAT_WEB; - die("unrecognized help format '%s'", format); + die(_("unrecognized help format '%s'"), format); } static const char *get_man_viewer_info(const char *name) @@ -72,17 +79,16 @@ static const char *get_man_viewer_info(const char *name) static int check_emacsclient_version(void) { struct strbuf buffer = STRBUF_INIT; - struct child_process ec_process; + struct child_process ec_process = CHILD_PROCESS_INIT; const char *argv_ec[] = { "emacsclient", "--version", NULL }; int version; /* emacsclient prints its version number on stderr */ - memset(&ec_process, 0, sizeof(ec_process)); ec_process.argv = argv_ec; ec_process.err = -1; ec_process.stdout_to_stderr = 1; if (start_command(&ec_process)) - return error("Failed to start emacsclient."); + return error(_("Failed to start emacsclient.")); strbuf_read(&buffer, ec_process.err, 20); close(ec_process.err); @@ -93,9 +99,9 @@ static int check_emacsclient_version(void) */ finish_command(&ec_process); - if (prefixcmp(buffer.buf, "emacsclient")) { + if (!starts_with(buffer.buf, "emacsclient")) { strbuf_release(&buffer); - return error("Failed to parse emacsclient version."); + return error(_("Failed to parse emacsclient version.")); } strbuf_remove(&buffer, 0, strlen("emacsclient")); @@ -103,7 +109,7 @@ static int check_emacsclient_version(void) if (version < 22) { strbuf_release(&buffer); - return error("emacsclient version '%d' too old (< 22).", + return error(_("emacsclient version '%d' too old (< 22)."), version); } @@ -121,7 +127,7 @@ static void exec_woman_emacs(const char *path, const char *page) path = "emacsclient"; strbuf_addf(&man_page, "(woman \"%s\")", page); execlp(path, "emacsclient", "-e", man_page.buf, (char *)NULL); - warning("failed to exec '%s': %s", path, strerror(errno)); + warning_errno(_("failed to exec '%s'"), path); } } @@ -134,22 +140,15 @@ static void exec_man_konqueror(const char *path, const char *page) /* It's simpler to launch konqueror using kfmclient. */ if (path) { - const char *file = strrchr(path, '/'); - if (file && !strcmp(file + 1, "konqueror")) { - char *new = xstrdup(path); - char *dest = strrchr(new, '/'); - - /* strlen("konqueror") == strlen("kfmclient") */ - strcpy(dest + 1, "kfmclient"); - path = new; - } - if (file) - filename = file; + size_t len; + if (strip_suffix(path, "/konqueror", &len)) + path = xstrfmt("%.*s/kfmclient", (int)len, path); + filename = basename((char *)path); } else path = "kfmclient"; strbuf_addf(&man_page, "man:%s(1)", page); execlp(path, filename, "newTab", man_page.buf, (char *)NULL); - warning("failed to exec '%s': %s", path, strerror(errno)); + warning_errno(_("failed to exec '%s'"), path); } } @@ -158,26 +157,24 @@ static void exec_man_man(const char *path, const char *page) if (!path) path = "man"; execlp(path, "man", page, (char *)NULL); - warning("failed to exec '%s': %s", path, strerror(errno)); + warning_errno(_("failed to exec '%s'"), path); } static void exec_man_cmd(const char *cmd, const char *page) { struct strbuf shell_cmd = STRBUF_INIT; strbuf_addf(&shell_cmd, "%s %s", cmd, page); - execl("/bin/sh", "sh", "-c", shell_cmd.buf, (char *)NULL); - warning("failed to exec '%s': %s", cmd, strerror(errno)); + execl(SHELL_PATH, SHELL_PATH, "-c", shell_cmd.buf, (char *)NULL); + warning(_("failed to exec '%s'"), cmd); } static void add_man_viewer(const char *name) { struct man_viewer_list **p = &man_viewer_list; - size_t len = strlen(name); while (*p) p = &((*p)->next); - *p = xcalloc(1, (sizeof(**p) + len + 1)); - strncpy((*p)->name, name, len); + FLEX_ALLOC_STR(*p, name, name); } static int supported_man_viewer(const char *name, size_t len) @@ -191,9 +188,8 @@ static void do_add_man_viewer_info(const char *name, size_t len, const char *value) { - struct man_viewer_info_list *new = xcalloc(1, sizeof(*new) + len + 1); - - strncpy(new->name, name, len); + struct man_viewer_info_list *new; + FLEX_ALLOC_MEM(new, name, name, len); new->info = xstrdup(value); new->next = man_viewer_info_list; man_viewer_info_list = new; @@ -206,8 +202,8 @@ static int add_man_viewer_path(const char *name, if (supported_man_viewer(name, len)) do_add_man_viewer_info(name, len, value); else - warning("'%s': path for unsupported man viewer.\n" - "Please consider using 'man.<tool>.cmd' instead.", + warning(_("'%s': path for unsupported man viewer.\n" + "Please consider using 'man.<tool>.cmd' instead."), name); return 0; @@ -218,8 +214,8 @@ static int add_man_viewer_cmd(const char *name, const char *value) { if (supported_man_viewer(name, len)) - warning("'%s': cmd for supported man viewer.\n" - "Please consider using 'man.<tool>.path' instead.", + warning(_("'%s': cmd for supported man viewer.\n" + "Please consider using 'man.<tool>.path' instead."), name); else do_add_man_viewer_info(name, len, value); @@ -229,21 +225,21 @@ static int add_man_viewer_cmd(const char *name, static int add_man_viewer_info(const char *var, const char *value) { - const char *name = var + 4; - const char *subkey = strrchr(name, '.'); + const char *name, *subkey; + int namelen; - if (!subkey) + if (parse_config_key(var, "man", &name, &namelen, &subkey) < 0 || !name) return 0; - if (!strcmp(subkey, ".path")) { + if (!strcmp(subkey, "path")) { if (!value) return config_error_nonbool(var); - return add_man_viewer_path(name, subkey - name, value); + return add_man_viewer_path(name, namelen, value); } - if (!strcmp(subkey, ".cmd")) { + if (!strcmp(subkey, "cmd")) { if (!value) return config_error_nonbool(var); - return add_man_viewer_cmd(name, subkey - name, value); + return add_man_viewer_cmd(name, namelen, value); } return 0; @@ -251,19 +247,27 @@ static int add_man_viewer_info(const char *var, const char *value) static int git_help_config(const char *var, const char *value, void *cb) { + if (starts_with(var, "column.")) + return git_column_config(var, value, "help", &colopts); if (!strcmp(var, "help.format")) { if (!value) return config_error_nonbool(var); help_format = parse_help_format(value); return 0; } + if (!strcmp(var, "help.htmlpath")) { + if (!value) + return config_error_nonbool(var); + html_path = xstrdup(value); + return 0; + } if (!strcmp(var, "man.viewer")) { if (!value) return config_error_nonbool(var); add_man_viewer(value); return 0; } - if (!prefixcmp(var, "man.")) + if (starts_with(var, "man.")) return add_man_viewer_info(var, value); return git_default_config(var, value, cb); @@ -271,65 +275,44 @@ static int git_help_config(const char *var, const char *value, void *cb) static struct cmdnames main_cmds, other_cmds; -void list_common_cmds_help(void) -{ - int i, longest = 0; - - for (i = 0; i < ARRAY_SIZE(common_cmds); i++) { - if (longest < strlen(common_cmds[i].name)) - longest = strlen(common_cmds[i].name); - } - - puts("The most commonly used git commands are:"); - for (i = 0; i < ARRAY_SIZE(common_cmds); i++) { - printf(" %s ", common_cmds[i].name); - mput_char(' ', longest - strlen(common_cmds[i].name)); - puts(common_cmds[i].help); - } -} - static int is_git_command(const char *s) { + if (is_builtin(s)) + return 1; + + load_command_list("git-", &main_cmds, &other_cmds); return is_in_cmdlist(&main_cmds, s) || is_in_cmdlist(&other_cmds, s); } -static const char *prepend(const char *prefix, const char *cmd) -{ - size_t pre_len = strlen(prefix); - size_t cmd_len = strlen(cmd); - char *p = xmalloc(pre_len + cmd_len + 1); - memcpy(p, prefix, pre_len); - strcpy(p + pre_len, cmd); - return p; -} - static const char *cmd_to_page(const char *git_cmd) { if (!git_cmd) return "git"; - else if (!prefixcmp(git_cmd, "git")) + else if (starts_with(git_cmd, "git")) return git_cmd; else if (is_git_command(git_cmd)) - return prepend("git-", git_cmd); + return xstrfmt("git-%s", git_cmd); else - return prepend("git", git_cmd); + return xstrfmt("git%s", git_cmd); } static void setup_man_path(void) { struct strbuf new_path = STRBUF_INIT; const char *old_path = getenv("MANPATH"); + char *git_man_path = system_path(GIT_MAN_PATH); /* We should always put ':' after our path. If there is no * old_path, the ':' at the end will let 'man' to try * system-wide paths after ours to find the manual page. If * there is old_path, we need ':' as delimiter. */ - strbuf_addstr(&new_path, system_path(GIT_MAN_PATH)); + strbuf_addstr(&new_path, git_man_path); strbuf_addch(&new_path, ':'); if (old_path) strbuf_addstr(&new_path, old_path); + free(git_man_path); setenv("MANPATH", new_path.buf, 1); strbuf_release(&new_path); @@ -348,7 +331,7 @@ static void exec_viewer(const char *name, const char *page) else if (info) exec_man_cmd(info, page); else - warning("'%s': unknown man viewer.", name); + warning(_("'%s': unknown man viewer."), name); } static void show_man_page(const char *git_cmd) @@ -365,7 +348,7 @@ static void show_man_page(const char *git_cmd) if (fallback) exec_viewer(fallback, page); exec_viewer("man", page); - die("no man viewer handled the request"); + die(_("no man viewer handled the request")); } static void show_info_page(const char *git_cmd) @@ -373,21 +356,27 @@ static void show_info_page(const char *git_cmd) const char *page = cmd_to_page(git_cmd); setenv("INFOPATH", system_path(GIT_INFO_PATH), 1); execlp("info", "info", "gitman", page, (char *)NULL); - die("no info viewer handled the request"); + die(_("no info viewer handled the request")); } static void get_html_page_path(struct strbuf *page_path, const char *page) { struct stat st; - const char *html_path = system_path(GIT_HTML_PATH); + char *to_free = NULL; + + if (!html_path) + html_path = to_free = system_path(GIT_HTML_PATH); /* Check that we have a git documentation directory. */ - if (stat(mkpath("%s/git.html", html_path), &st) - || !S_ISREG(st.st_mode)) - die("'%s': not a documentation directory.", html_path); + if (!strstr(html_path, "://")) { + if (stat(mkpath("%s/git.html", html_path), &st) + || !S_ISREG(st.st_mode)) + die("'%s': not a documentation directory.", html_path); + } strbuf_init(page_path, 0); strbuf_addf(page_path, "%s/%s.html", html_path, page); + free(to_free); } /* @@ -412,28 +401,70 @@ static void show_html_page(const char *git_cmd) open_html(page_path.buf); } +static struct { + const char *name; + const char *help; +} common_guides[] = { + { "attributes", N_("Defining attributes per path") }, + { "everyday", N_("Everyday Git With 20 Commands Or So") }, + { "glossary", N_("A Git glossary") }, + { "ignore", N_("Specifies intentionally untracked files to ignore") }, + { "modules", N_("Defining submodule properties") }, + { "revisions", N_("Specifying revisions and ranges for Git") }, + { "tutorial", N_("A tutorial introduction to Git (for version 1.5.1 or newer)") }, + { "workflows", N_("An overview of recommended workflows with Git") }, +}; + +static void list_common_guides_help(void) +{ + int i, longest = 0; + + for (i = 0; i < ARRAY_SIZE(common_guides); i++) { + if (longest < strlen(common_guides[i].name)) + longest = strlen(common_guides[i].name); + } + + puts(_("The common Git guides are:\n")); + for (i = 0; i < ARRAY_SIZE(common_guides); i++) { + printf(" %s ", common_guides[i].name); + mput_char(' ', longest - strlen(common_guides[i].name)); + puts(_(common_guides[i].help)); + } + putchar('\n'); +} + int cmd_help(int argc, const char **argv, const char *prefix) { int nongit; - const char *alias; + char *alias; enum help_format parsed_help_format; - load_command_list("git-", &main_cmds, &other_cmds); argc = parse_options(argc, argv, prefix, builtin_help_options, builtin_help_usage, 0); parsed_help_format = help_format; if (show_all) { - printf("usage: %s\n\n", git_usage_string); - list_commands("git commands", &main_cmds, &other_cmds); - printf("%s\n", git_more_info_string); + git_config(git_help_config, NULL); + printf(_("usage: %s%s"), _(git_usage_string), "\n\n"); + load_command_list("git-", &main_cmds, &other_cmds); + list_commands(colopts, &main_cmds, &other_cmds); + } + + if (show_guides) + list_common_guides_help(); + + if (show_all || show_guides) { + printf("%s\n", _(git_more_info_string)); + /* + * We're done. Ignore any remaining args + */ return 0; } if (!argv[0]) { - printf("usage: %s\n\n", git_usage_string); + printf(_("usage: %s%s"), _(git_usage_string), "\n\n"); list_common_cmds_help(); - printf("\n%s\n", git_more_info_string); + printf("\n%s\n", _(git_more_info_string)); return 0; } @@ -442,10 +473,13 @@ int cmd_help(int argc, const char **argv, const char *prefix) if (parsed_help_format != HELP_FORMAT_NONE) help_format = parsed_help_format; + if (help_format == HELP_FORMAT_NONE) + help_format = parse_help_format(DEFAULT_HELP_FORMAT); alias = alias_lookup(argv[0]); if (alias && !is_git_command(argv[0])) { - printf("`git %s' is aliased to `%s'\n", argv[0], alias); + printf_ln(_("`git %s' is aliased to `%s'"), argv[0], alias); + free(alias); return 0; } diff --git a/builtin/index-pack.c b/builtin/index-pack.c index 98025da767..e8c71fc1d2 100644 --- a/builtin/index-pack.c +++ b/builtin/index-pack.c @@ -9,6 +9,8 @@ #include "progress.h" #include "fsck.h" #include "exec_cmd.h" +#include "streaming.h" +#include "thread-utils.h" static const char index_pack_usage[] = "git index-pack [-v] [-o <index-file>] [--keep | --keep=<msg>] [--verify] [--strict] (<pack-file> | --stdin [--fix-thin] [<pack-file>])"; @@ -16,16 +18,14 @@ static const char index_pack_usage[] = struct object_entry { struct pack_idx_entry idx; unsigned long size; - unsigned int hdr_size; - enum object_type type; - enum object_type real_type; - unsigned delta_depth; - int base_object_no; + unsigned char hdr_size; + signed char type; + signed char real_type; }; -union delta_base { - unsigned char sha1[20]; - off_t offset; +struct object_stat { + unsigned delta_depth; + int base_object_no; }; struct base_data { @@ -34,33 +34,51 @@ struct base_data { struct object_entry *obj; void *data; unsigned long size; + int ref_first, ref_last; + int ofs_first, ofs_last; }; -/* - * Even if sizeof(union delta_base) == 24 on 64-bit archs, we really want - * to memcmp() only the first 20 bytes. - */ -#define UNION_BASE_SZ 20 +struct thread_local { +#ifndef NO_PTHREADS + pthread_t thread; +#endif + struct base_data *base_cache; + size_t base_cache_used; + int pack_fd; +}; #define FLAG_LINK (1u<<20) #define FLAG_CHECKED (1u<<21) -struct delta_entry { - union delta_base base; +struct ofs_delta_entry { + off_t offset; + int obj_no; +}; + +struct ref_delta_entry { + unsigned char sha1[20]; int obj_no; }; static struct object_entry *objects; -static struct delta_entry *deltas; -static struct base_data *base_cache; -static size_t base_cache_used; +static struct object_stat *obj_stat; +static struct ofs_delta_entry *ofs_deltas; +static struct ref_delta_entry *ref_deltas; +static struct thread_local nothread_data; static int nr_objects; -static int nr_deltas; +static int nr_ofs_deltas; +static int nr_ref_deltas; +static int ref_deltas_alloc; static int nr_resolved_deltas; +static int nr_threads; static int from_stdin; static int strict; +static int do_fsck_object; +static struct fsck_options fsck_options = FSCK_OPTIONS_STRICT; static int verbose; +static int show_stat; +static int check_self_contained_and_connected; static struct progress *progress; @@ -71,15 +89,117 @@ static off_t consumed_bytes; static unsigned deepest_delta; static git_SHA_CTX input_ctx; static uint32_t input_crc32; -static int input_fd, output_fd, pack_fd; +static int input_fd, output_fd; +static const char *curr_pack; + +#ifndef NO_PTHREADS + +static struct thread_local *thread_data; +static int nr_dispatched; +static int threads_active; + +static pthread_mutex_t read_mutex; +#define read_lock() lock_mutex(&read_mutex) +#define read_unlock() unlock_mutex(&read_mutex) + +static pthread_mutex_t counter_mutex; +#define counter_lock() lock_mutex(&counter_mutex) +#define counter_unlock() unlock_mutex(&counter_mutex) + +static pthread_mutex_t work_mutex; +#define work_lock() lock_mutex(&work_mutex) +#define work_unlock() unlock_mutex(&work_mutex) + +static pthread_mutex_t deepest_delta_mutex; +#define deepest_delta_lock() lock_mutex(&deepest_delta_mutex) +#define deepest_delta_unlock() unlock_mutex(&deepest_delta_mutex) + +static pthread_mutex_t type_cas_mutex; +#define type_cas_lock() lock_mutex(&type_cas_mutex) +#define type_cas_unlock() unlock_mutex(&type_cas_mutex) + +static pthread_key_t key; + +static inline void lock_mutex(pthread_mutex_t *mutex) +{ + if (threads_active) + pthread_mutex_lock(mutex); +} + +static inline void unlock_mutex(pthread_mutex_t *mutex) +{ + if (threads_active) + pthread_mutex_unlock(mutex); +} + +/* + * Mutex and conditional variable can't be statically-initialized on Windows. + */ +static void init_thread(void) +{ + int i; + init_recursive_mutex(&read_mutex); + pthread_mutex_init(&counter_mutex, NULL); + pthread_mutex_init(&work_mutex, NULL); + pthread_mutex_init(&type_cas_mutex, NULL); + if (show_stat) + pthread_mutex_init(&deepest_delta_mutex, NULL); + pthread_key_create(&key, NULL); + thread_data = xcalloc(nr_threads, sizeof(*thread_data)); + for (i = 0; i < nr_threads; i++) { + thread_data[i].pack_fd = open(curr_pack, O_RDONLY); + if (thread_data[i].pack_fd == -1) + die_errno(_("unable to open %s"), curr_pack); + } -static int mark_link(struct object *obj, int type, void *data) + threads_active = 1; +} + +static void cleanup_thread(void) +{ + int i; + if (!threads_active) + return; + threads_active = 0; + pthread_mutex_destroy(&read_mutex); + pthread_mutex_destroy(&counter_mutex); + pthread_mutex_destroy(&work_mutex); + pthread_mutex_destroy(&type_cas_mutex); + if (show_stat) + pthread_mutex_destroy(&deepest_delta_mutex); + for (i = 0; i < nr_threads; i++) + close(thread_data[i].pack_fd); + pthread_key_delete(key); + free(thread_data); +} + +#else + +#define read_lock() +#define read_unlock() + +#define counter_lock() +#define counter_unlock() + +#define work_lock() +#define work_unlock() + +#define deepest_delta_lock() +#define deepest_delta_unlock() + +#define type_cas_lock() +#define type_cas_unlock() + +#endif + + +static int mark_link(struct object *obj, int type, void *data, struct fsck_options *options) { if (!obj) return -1; if (type != OBJ_ANY && obj->type != type) - die("object type mismatch at %s", sha1_to_hex(obj->sha1)); + die(_("object type mismatch at %s"), oid_to_hex(&obj->oid)); obj->flags |= FLAG_LINK; return 0; @@ -87,31 +207,39 @@ static int mark_link(struct object *obj, int type, void *data) /* The content of each linked object must have been checked or it must be already present in the object database */ -static void check_object(struct object *obj) +static unsigned check_object(struct object *obj) { if (!obj) - return; + return 0; if (!(obj->flags & FLAG_LINK)) - return; + return 0; if (!(obj->flags & FLAG_CHECKED)) { unsigned long size; - int type = sha1_object_info(obj->sha1, &size); - if (type != obj->type || type <= 0) - die("object of unexpected type"); + int type = sha1_object_info(obj->oid.hash, &size); + if (type <= 0) + die(_("did not receive expected object %s"), + oid_to_hex(&obj->oid)); + if (type != obj->type) + die(_("object %s: expected type %s, found %s"), + oid_to_hex(&obj->oid), + typename(obj->type), typename(type)); obj->flags |= FLAG_CHECKED; - return; + return 1; } + + return 0; } -static void check_objects(void) +static unsigned check_objects(void) { - unsigned i, max; + unsigned i, max, foreign_nr = 0; max = get_max_object_index(); for (i = 0; i < max; i++) - check_object(get_indexed_object(i)); + foreign_nr += check_object(get_indexed_object(i)); + return foreign_nr; } @@ -136,15 +264,18 @@ static void *fill(int min) if (min <= input_len) return input_buffer + input_offset; if (min > sizeof(input_buffer)) - die("cannot fill %d bytes", min); + die(Q_("cannot fill %d byte", + "cannot fill %d bytes", + min), + min); flush(); do { ssize_t ret = xread(input_fd, input_buffer + input_len, sizeof(input_buffer) - input_len); if (ret <= 0) { if (!ret) - die("early EOF"); - die_errno("read error on input"); + die(_("early EOF")); + die_errno(_("read error on input")); } input_len += ret; if (from_stdin) @@ -156,14 +287,14 @@ static void *fill(int min) static void use(int bytes) { if (bytes > input_len) - die("used more bytes than were available"); + die(_("used more bytes than were available")); input_crc32 = crc32(input_crc32, input_buffer + input_offset, bytes); input_len -= bytes; input_offset += bytes; /* make sure off_t is sufficiently large not to wrap */ if (signed_add_overflows(consumed_bytes, bytes)) - die("pack too large for current definition of off_t"); + die(_("pack too large for current definition of off_t")); consumed_bytes += bytes; } @@ -172,21 +303,21 @@ static const char *open_pack_file(const char *pack_name) if (from_stdin) { input_fd = 0; if (!pack_name) { - static char tmpfile[PATH_MAX]; - output_fd = odb_mkstemp(tmpfile, sizeof(tmpfile), + static char tmp_file[PATH_MAX]; + output_fd = odb_mkstemp(tmp_file, sizeof(tmp_file), "pack/tmp_pack_XXXXXX"); - pack_name = xstrdup(tmpfile); + pack_name = xstrdup(tmp_file); } else output_fd = open(pack_name, O_CREAT|O_EXCL|O_RDWR, 0600); if (output_fd < 0) - die_errno("unable to create '%s'", pack_name); - pack_fd = output_fd; + die_errno(_("unable to create '%s'"), pack_name); + nothread_data.pack_fd = output_fd; } else { input_fd = open(pack_name, O_RDONLY); if (input_fd < 0) - die_errno("cannot open packfile '%s'", pack_name); + die_errno(_("cannot open packfile '%s'"), pack_name); output_fd = -1; - pack_fd = input_fd; + nothread_data.pack_fd = input_fd; } git_SHA1_Init(&input_ctx); return pack_name; @@ -198,9 +329,9 @@ static void parse_pack_header(void) /* Header consistency check */ if (hdr->hdr_signature != htonl(PACK_SIGNATURE)) - die("pack signature mismatch"); + die(_("pack signature mismatch")); if (!pack_version_ok(hdr->hdr_version)) - die("pack version %"PRIu32" unsupported", + die(_("pack version %"PRIu32" unsupported"), ntohl(hdr->hdr_version)); nr_objects = ntohl(hdr->hdr_entries); @@ -218,7 +349,34 @@ static NORETURN void bad_object(unsigned long offset, const char *format, ...) va_start(params, format); vsnprintf(buf, sizeof(buf), format, params); va_end(params); - die("pack has bad object at offset %lu: %s", offset, buf); + die(_("pack has bad object at offset %lu: %s"), offset, buf); +} + +static inline struct thread_local *get_thread_data(void) +{ +#ifndef NO_PTHREADS + if (threads_active) + return pthread_getspecific(key); + assert(!threads_active && + "This should only be reached when all threads are gone"); +#endif + return ¬hread_data; +} + +#ifndef NO_PTHREADS +static void set_thread_data(struct thread_local *data) +{ + if (threads_active) + pthread_setspecific(key, data); +} +#endif + +static struct base_data *alloc_base_data(void) +{ + struct base_data *base = xcalloc(1, sizeof(struct base_data)); + base->ref_last = -1; + base->ofs_last = -1; + return base; } static void free_base_data(struct base_data *c) @@ -226,15 +384,16 @@ static void free_base_data(struct base_data *c) if (c->data) { free(c->data); c->data = NULL; - base_cache_used -= c->size; + get_thread_data()->base_cache_used -= c->size; } } static void prune_base_data(struct base_data *retain) { struct base_data *b; - for (b = base_cache; - base_cache_used > delta_base_cache_limit && b; + struct thread_local *data = get_thread_data(); + for (b = data->base_cache; + data->base_cache_used > delta_base_cache_limit && b; b = b->child) { if (b->data && b != retain) free_base_data(b); @@ -246,12 +405,12 @@ static void link_base_data(struct base_data *base, struct base_data *c) if (base) base->child = c; else - base_cache = c; + get_thread_data()->base_cache = c; c->base = base; c->child = NULL; if (c->data) - base_cache_used += c->size; + get_thread_data()->base_cache_used += c->size; prune_base_data(c); } @@ -261,34 +420,67 @@ static void unlink_base_data(struct base_data *c) if (base) base->child = NULL; else - base_cache = NULL; + get_thread_data()->base_cache = NULL; free_base_data(c); } -static void *unpack_entry_data(unsigned long offset, unsigned long size) +static int is_delta_type(enum object_type type) +{ + return (type == OBJ_REF_DELTA || type == OBJ_OFS_DELTA); +} + +static void *unpack_entry_data(unsigned long offset, unsigned long size, + enum object_type type, unsigned char *sha1) { + static char fixed_buf[8192]; int status; git_zstream stream; - void *buf = xmalloc(size); + void *buf; + git_SHA_CTX c; + char hdr[32]; + int hdrlen; + + if (!is_delta_type(type)) { + hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %lu", typename(type), size) + 1; + git_SHA1_Init(&c); + git_SHA1_Update(&c, hdr, hdrlen); + } else + sha1 = NULL; + if (type == OBJ_BLOB && size > big_file_threshold) + buf = fixed_buf; + else + buf = xmallocz(size); memset(&stream, 0, sizeof(stream)); git_inflate_init(&stream); stream.next_out = buf; - stream.avail_out = size; + stream.avail_out = buf == fixed_buf ? sizeof(fixed_buf) : size; do { + unsigned char *last_out = stream.next_out; stream.next_in = fill(1); stream.avail_in = input_len; status = git_inflate(&stream, 0); use(input_len - stream.avail_in); + if (sha1) + git_SHA1_Update(&c, last_out, stream.next_out - last_out); + if (buf == fixed_buf) { + stream.next_out = buf; + stream.avail_out = sizeof(fixed_buf); + } } while (status == Z_OK); if (stream.total_out != size || status != Z_STREAM_END) - bad_object(offset, "inflate returned %d", status); + bad_object(offset, _("inflate returned %d"), status); git_inflate_end(&stream); - return buf; + if (sha1) + git_SHA1_Final(sha1, &c); + return buf == fixed_buf ? NULL : buf; } -static void *unpack_raw_entry(struct object_entry *obj, union delta_base *delta_base) +static void *unpack_raw_entry(struct object_entry *obj, + off_t *ofs_offset, + unsigned char *ref_sha1, + unsigned char *sha1) { unsigned char *p; unsigned long size, c; @@ -316,11 +508,10 @@ static void *unpack_raw_entry(struct object_entry *obj, union delta_base *delta_ switch (obj->type) { case OBJ_REF_DELTA: - hashcpy(delta_base->sha1, fill(20)); + hashcpy(ref_sha1, fill(20)); use(20); break; case OBJ_OFS_DELTA: - memset(delta_base, 0, sizeof(*delta_base)); p = fill(1); c = *p; use(1); @@ -328,15 +519,15 @@ static void *unpack_raw_entry(struct object_entry *obj, union delta_base *delta_ while (c & 128) { base_offset += 1; if (!base_offset || MSB(base_offset, 7)) - bad_object(obj->idx.offset, "offset value overflow for delta base object"); + bad_object(obj->idx.offset, _("offset value overflow for delta base object")); p = fill(1); c = *p; use(1); base_offset = (base_offset << 7) + (c & 127); } - delta_base->offset = obj->idx.offset - base_offset; - if (delta_base->offset <= 0 || delta_base->offset >= obj->idx.offset) - bad_object(obj->idx.offset, "delta base offset is out of bound"); + *ofs_offset = obj->idx.offset - base_offset; + if (*ofs_offset <= 0 || *ofs_offset >= obj->idx.offset) + bad_object(obj->idx.offset, _("delta base offset is out of bound")); break; case OBJ_COMMIT: case OBJ_TREE: @@ -344,16 +535,18 @@ static void *unpack_raw_entry(struct object_entry *obj, union delta_base *delta_ case OBJ_TAG: break; default: - bad_object(obj->idx.offset, "unknown object type %d", obj->type); + bad_object(obj->idx.offset, _("unknown object type %d"), obj->type); } obj->hdr_size = consumed_bytes - obj->idx.offset; - data = unpack_entry_data(obj->idx.offset, obj->size); + data = unpack_entry_data(obj->idx.offset, obj->size, obj->type, sha1); obj->idx.crc32 = input_crc32; return data; } -static void *get_data_from_pack(struct object_entry *obj) +static void *unpack_data(struct object_entry *obj, + int (*consume)(const unsigned char *, unsigned long, void *), + void *cb_data) { off_t from = obj[0].idx.offset + obj[0].hdr_size; unsigned long len = obj[1].idx.offset - from; @@ -361,171 +554,371 @@ static void *get_data_from_pack(struct object_entry *obj) git_zstream stream; int status; - data = xmalloc(obj->size); + data = xmallocz(consume ? 64*1024 : obj->size); inbuf = xmalloc((len < 64*1024) ? len : 64*1024); memset(&stream, 0, sizeof(stream)); git_inflate_init(&stream); stream.next_out = data; - stream.avail_out = obj->size; + stream.avail_out = consume ? 64*1024 : obj->size; do { ssize_t n = (len < 64*1024) ? len : 64*1024; - n = pread(pack_fd, inbuf, n, from); + n = xpread(get_thread_data()->pack_fd, inbuf, n, from); if (n < 0) - die_errno("cannot pread pack file"); + die_errno(_("cannot pread pack file")); if (!n) - die("premature end of pack file, %lu bytes missing", len); + die(Q_("premature end of pack file, %lu byte missing", + "premature end of pack file, %lu bytes missing", + len), + len); from += n; len -= n; stream.next_in = inbuf; stream.avail_in = n; - status = git_inflate(&stream, 0); + if (!consume) + status = git_inflate(&stream, 0); + else { + do { + status = git_inflate(&stream, 0); + if (consume(data, stream.next_out - data, cb_data)) { + free(inbuf); + free(data); + return NULL; + } + stream.next_out = data; + stream.avail_out = 64*1024; + } while (status == Z_OK && stream.avail_in); + } } while (len && status == Z_OK && !stream.avail_in); /* This has been inflated OK when first encountered, so... */ if (status != Z_STREAM_END || stream.total_out != obj->size) - die("serious inflate inconsistency"); + die(_("serious inflate inconsistency")); git_inflate_end(&stream); free(inbuf); + if (consume) { + free(data); + data = NULL; + } return data; } -static int compare_delta_bases(const union delta_base *base1, - const union delta_base *base2, - enum object_type type1, - enum object_type type2) +static void *get_data_from_pack(struct object_entry *obj) +{ + return unpack_data(obj, NULL, NULL); +} + +static int compare_ofs_delta_bases(off_t offset1, off_t offset2, + enum object_type type1, + enum object_type type2) +{ + int cmp = type1 - type2; + if (cmp) + return cmp; + return offset1 < offset2 ? -1 : + offset1 > offset2 ? 1 : + 0; +} + +static int find_ofs_delta(const off_t offset, enum object_type type) +{ + int first = 0, last = nr_ofs_deltas; + + while (first < last) { + int next = (first + last) / 2; + struct ofs_delta_entry *delta = &ofs_deltas[next]; + int cmp; + + cmp = compare_ofs_delta_bases(offset, delta->offset, + type, objects[delta->obj_no].type); + if (!cmp) + return next; + if (cmp < 0) { + last = next; + continue; + } + first = next+1; + } + return -first-1; +} + +static void find_ofs_delta_children(off_t offset, + int *first_index, int *last_index, + enum object_type type) +{ + int first = find_ofs_delta(offset, type); + int last = first; + int end = nr_ofs_deltas - 1; + + if (first < 0) { + *first_index = 0; + *last_index = -1; + return; + } + while (first > 0 && ofs_deltas[first - 1].offset == offset) + --first; + while (last < end && ofs_deltas[last + 1].offset == offset) + ++last; + *first_index = first; + *last_index = last; +} + +static int compare_ref_delta_bases(const unsigned char *sha1, + const unsigned char *sha2, + enum object_type type1, + enum object_type type2) { int cmp = type1 - type2; if (cmp) return cmp; - return memcmp(base1, base2, UNION_BASE_SZ); + return hashcmp(sha1, sha2); } -static int find_delta(const union delta_base *base, enum object_type type) +static int find_ref_delta(const unsigned char *sha1, enum object_type type) { - int first = 0, last = nr_deltas; - - while (first < last) { - int next = (first + last) / 2; - struct delta_entry *delta = &deltas[next]; - int cmp; - - cmp = compare_delta_bases(base, &delta->base, - type, objects[delta->obj_no].type); - if (!cmp) - return next; - if (cmp < 0) { - last = next; - continue; - } - first = next+1; - } - return -first-1; + int first = 0, last = nr_ref_deltas; + + while (first < last) { + int next = (first + last) / 2; + struct ref_delta_entry *delta = &ref_deltas[next]; + int cmp; + + cmp = compare_ref_delta_bases(sha1, delta->sha1, + type, objects[delta->obj_no].type); + if (!cmp) + return next; + if (cmp < 0) { + last = next; + continue; + } + first = next+1; + } + return -first-1; } -static void find_delta_children(const union delta_base *base, - int *first_index, int *last_index, - enum object_type type) +static void find_ref_delta_children(const unsigned char *sha1, + int *first_index, int *last_index, + enum object_type type) { - int first = find_delta(base, type); + int first = find_ref_delta(sha1, type); int last = first; - int end = nr_deltas - 1; + int end = nr_ref_deltas - 1; if (first < 0) { *first_index = 0; *last_index = -1; return; } - while (first > 0 && !memcmp(&deltas[first - 1].base, base, UNION_BASE_SZ)) + while (first > 0 && !hashcmp(ref_deltas[first - 1].sha1, sha1)) --first; - while (last < end && !memcmp(&deltas[last + 1].base, base, UNION_BASE_SZ)) + while (last < end && !hashcmp(ref_deltas[last + 1].sha1, sha1)) ++last; *first_index = first; *last_index = last; } -static void sha1_object(const void *data, unsigned long size, - enum object_type type, unsigned char *sha1) +struct compare_data { + struct object_entry *entry; + struct git_istream *st; + unsigned char *buf; + unsigned long buf_size; +}; + +static int compare_objects(const unsigned char *buf, unsigned long size, + void *cb_data) +{ + struct compare_data *data = cb_data; + + if (data->buf_size < size) { + free(data->buf); + data->buf = xmalloc(size); + data->buf_size = size; + } + + while (size) { + ssize_t len = read_istream(data->st, data->buf, size); + if (len == 0) + die(_("SHA1 COLLISION FOUND WITH %s !"), + sha1_to_hex(data->entry->idx.sha1)); + if (len < 0) + die(_("unable to read %s"), + sha1_to_hex(data->entry->idx.sha1)); + if (memcmp(buf, data->buf, len)) + die(_("SHA1 COLLISION FOUND WITH %s !"), + sha1_to_hex(data->entry->idx.sha1)); + size -= len; + buf += len; + } + return 0; +} + +static int check_collison(struct object_entry *entry) +{ + struct compare_data data; + enum object_type type; + unsigned long size; + + if (entry->size <= big_file_threshold || entry->type != OBJ_BLOB) + return -1; + + memset(&data, 0, sizeof(data)); + data.entry = entry; + data.st = open_istream(entry->idx.sha1, &type, &size, NULL); + if (!data.st) + return -1; + if (size != entry->size || type != entry->type) + die(_("SHA1 COLLISION FOUND WITH %s !"), + sha1_to_hex(entry->idx.sha1)); + unpack_data(entry, compare_objects, &data); + close_istream(data.st); + free(data.buf); + return 0; +} + +static void sha1_object(const void *data, struct object_entry *obj_entry, + unsigned long size, enum object_type type, + const unsigned char *sha1) { - hash_sha1_file(data, size, typename(type), sha1); - if (has_sha1_file(sha1)) { + void *new_data = NULL; + int collision_test_needed; + + assert(data || obj_entry); + + read_lock(); + collision_test_needed = has_sha1_file_with_flags(sha1, HAS_SHA1_QUICK); + read_unlock(); + + if (collision_test_needed && !data) { + read_lock(); + if (!check_collison(obj_entry)) + collision_test_needed = 0; + read_unlock(); + } + if (collision_test_needed) { void *has_data; enum object_type has_type; unsigned long has_size; + read_lock(); + has_type = sha1_object_info(sha1, &has_size); + if (has_type != type || has_size != size) + die(_("SHA1 COLLISION FOUND WITH %s !"), sha1_to_hex(sha1)); has_data = read_sha1_file(sha1, &has_type, &has_size); + read_unlock(); + if (!data) + data = new_data = get_data_from_pack(obj_entry); if (!has_data) - die("cannot read existing object %s", sha1_to_hex(sha1)); + die(_("cannot read existing object %s"), sha1_to_hex(sha1)); if (size != has_size || type != has_type || memcmp(data, has_data, size) != 0) - die("SHA1 COLLISION FOUND WITH %s !", sha1_to_hex(sha1)); + die(_("SHA1 COLLISION FOUND WITH %s !"), sha1_to_hex(sha1)); free(has_data); } + if (strict) { + read_lock(); if (type == OBJ_BLOB) { struct blob *blob = lookup_blob(sha1); if (blob) blob->object.flags |= FLAG_CHECKED; else - die("invalid blob object %s", sha1_to_hex(sha1)); + die(_("invalid blob object %s"), sha1_to_hex(sha1)); } else { struct object *obj; int eaten; void *buf = (void *) data; + assert(data && "data can only be NULL for large _blobs_"); + /* * we do not need to free the memory here, as the * buf is deleted by the caller. */ obj = parse_object_buffer(sha1, type, size, buf, &eaten); if (!obj) - die("invalid %s", typename(type)); - if (fsck_object(obj, 1, fsck_error_function)) - die("Error in object"); - if (fsck_walk(obj, mark_link, NULL)) - die("Not all child objects of %s are reachable", sha1_to_hex(obj->sha1)); + die(_("invalid %s"), typename(type)); + if (do_fsck_object && + fsck_object(obj, buf, size, &fsck_options)) + die(_("Error in object")); + if (fsck_walk(obj, NULL, &fsck_options)) + die(_("Not all child objects of %s are reachable"), oid_to_hex(&obj->oid)); if (obj->type == OBJ_TREE) { struct tree *item = (struct tree *) obj; item->buffer = NULL; + obj->parsed = 0; } if (obj->type == OBJ_COMMIT) { struct commit *commit = (struct commit *) obj; - commit->buffer = NULL; + if (detach_commit_buffer(commit, NULL) != data) + die("BUG: parse_object_buffer transmogrified our buffer"); } obj->flags |= FLAG_CHECKED; } + read_unlock(); } -} -static int is_delta_type(enum object_type type) -{ - return (type == OBJ_REF_DELTA || type == OBJ_OFS_DELTA); + free(new_data); } +/* + * This function is part of find_unresolved_deltas(). There are two + * walkers going in the opposite ways. + * + * The first one in find_unresolved_deltas() traverses down from + * parent node to children, deflating nodes along the way. However, + * memory for deflated nodes is limited by delta_base_cache_limit, so + * at some point parent node's deflated content may be freed. + * + * The second walker is this function, which goes from current node up + * to top parent if necessary to deflate the node. In normal + * situation, its parent node would be already deflated, so it just + * needs to apply delta. + * + * In the worst case scenario, parent node is no longer deflated because + * we're running out of delta_base_cache_limit; we need to re-deflate + * parents, possibly up to the top base. + * + * All deflated objects here are subject to be freed if we exceed + * delta_base_cache_limit, just like in find_unresolved_deltas(), we + * just need to make sure the last node is not freed. + */ static void *get_base_data(struct base_data *c) { if (!c->data) { struct object_entry *obj = c->obj; + struct base_data **delta = NULL; + int delta_nr = 0, delta_alloc = 0; - if (is_delta_type(obj->type)) { - void *base = get_base_data(c->base); - void *raw = get_data_from_pack(obj); + while (is_delta_type(c->obj->type) && !c->data) { + ALLOC_GROW(delta, delta_nr + 1, delta_alloc); + delta[delta_nr++] = c; + c = c->base; + } + if (!delta_nr) { + c->data = get_data_from_pack(obj); + c->size = obj->size; + get_thread_data()->base_cache_used += c->size; + prune_base_data(c); + } + for (; delta_nr > 0; delta_nr--) { + void *base, *raw; + c = delta[delta_nr - 1]; + obj = c->obj; + base = get_base_data(c->base); + raw = get_data_from_pack(obj); c->data = patch_delta( base, c->base->size, raw, obj->size, &c->size); free(raw); if (!c->data) - bad_object(obj->idx.offset, "failed to apply delta"); - } else { - c->data = get_data_from_pack(obj); - c->size = obj->size; + bad_object(obj->idx.offset, _("failed to apply delta")); + get_thread_data()->base_cache_used += c->size; + prune_base_data(c); } - - base_cache_used += c->size; - prune_base_data(c); + free(delta); } return c->data; } @@ -535,11 +928,16 @@ static void resolve_delta(struct object_entry *delta_obj, { void *base_data, *delta_data; - delta_obj->real_type = base->obj->real_type; - delta_obj->delta_depth = base->obj->delta_depth + 1; - if (deepest_delta < delta_obj->delta_depth) - deepest_delta = delta_obj->delta_depth; - delta_obj->base_object_no = base->obj - objects; + if (show_stat) { + int i = delta_obj - objects; + int j = base->obj - objects; + obj_stat[i].delta_depth = obj_stat[j].delta_depth + 1; + deepest_delta_lock(); + if (deepest_delta < obj_stat[i].delta_depth) + deepest_delta = obj_stat[i].delta_depth; + deepest_delta_unlock(); + obj_stat[i].base_object_no = j; + } delta_data = get_data_from_pack(delta_obj); base_data = get_base_data(base); result->obj = delta_obj; @@ -547,104 +945,198 @@ static void resolve_delta(struct object_entry *delta_obj, delta_data, delta_obj->size, &result->size); free(delta_data); if (!result->data) - bad_object(delta_obj->idx.offset, "failed to apply delta"); - sha1_object(result->data, result->size, delta_obj->real_type, + bad_object(delta_obj->idx.offset, _("failed to apply delta")); + hash_sha1_file(result->data, result->size, + typename(delta_obj->real_type), delta_obj->idx.sha1); + sha1_object(result->data, NULL, result->size, delta_obj->real_type, delta_obj->idx.sha1); + counter_lock(); nr_resolved_deltas++; + counter_unlock(); } -static void find_unresolved_deltas(struct base_data *base, - struct base_data *prev_base) +/* + * Standard boolean compare-and-swap: atomically check whether "*type" is + * "want"; if so, swap in "set" and return true. Otherwise, leave it untouched + * and return false. + */ +static int compare_and_swap_type(signed char *type, + enum object_type want, + enum object_type set) { - int i, ref_first, ref_last, ofs_first, ofs_last; + enum object_type old; - /* - * This is a recursive function. Those brackets should help reducing - * stack usage by limiting the scope of the delta_base union. - */ - { - union delta_base base_spec; + type_cas_lock(); + old = *type; + if (old == want) + *type = set; + type_cas_unlock(); - hashcpy(base_spec.sha1, base->obj->idx.sha1); - find_delta_children(&base_spec, - &ref_first, &ref_last, OBJ_REF_DELTA); + return old == want; +} - memset(&base_spec, 0, sizeof(base_spec)); - base_spec.offset = base->obj->idx.offset; - find_delta_children(&base_spec, - &ofs_first, &ofs_last, OBJ_OFS_DELTA); - } +static struct base_data *find_unresolved_deltas_1(struct base_data *base, + struct base_data *prev_base) +{ + if (base->ref_last == -1 && base->ofs_last == -1) { + find_ref_delta_children(base->obj->idx.sha1, + &base->ref_first, &base->ref_last, + OBJ_REF_DELTA); + + find_ofs_delta_children(base->obj->idx.offset, + &base->ofs_first, &base->ofs_last, + OBJ_OFS_DELTA); + + if (base->ref_last == -1 && base->ofs_last == -1) { + free(base->data); + return NULL; + } - if (ref_last == -1 && ofs_last == -1) { - free(base->data); - return; + link_base_data(prev_base, base); } - link_base_data(prev_base, base); + if (base->ref_first <= base->ref_last) { + struct object_entry *child = objects + ref_deltas[base->ref_first].obj_no; + struct base_data *result = alloc_base_data(); - for (i = ref_first; i <= ref_last; i++) { - struct object_entry *child = objects + deltas[i].obj_no; - struct base_data result; + if (!compare_and_swap_type(&child->real_type, OBJ_REF_DELTA, + base->obj->real_type)) + die("BUG: child->real_type != OBJ_REF_DELTA"); - assert(child->real_type == OBJ_REF_DELTA); - resolve_delta(child, base, &result); - if (i == ref_last && ofs_last == -1) + resolve_delta(child, base, result); + if (base->ref_first == base->ref_last && base->ofs_last == -1) free_base_data(base); - find_unresolved_deltas(&result, base); + + base->ref_first++; + return result; } - for (i = ofs_first; i <= ofs_last; i++) { - struct object_entry *child = objects + deltas[i].obj_no; - struct base_data result; + if (base->ofs_first <= base->ofs_last) { + struct object_entry *child = objects + ofs_deltas[base->ofs_first].obj_no; + struct base_data *result = alloc_base_data(); assert(child->real_type == OBJ_OFS_DELTA); - resolve_delta(child, base, &result); - if (i == ofs_last) + child->real_type = base->obj->real_type; + resolve_delta(child, base, result); + if (base->ofs_first == base->ofs_last) free_base_data(base); - find_unresolved_deltas(&result, base); + + base->ofs_first++; + return result; } unlink_base_data(base); + return NULL; } -static int compare_delta_entry(const void *a, const void *b) +static void find_unresolved_deltas(struct base_data *base) { - const struct delta_entry *delta_a = a; - const struct delta_entry *delta_b = b; + struct base_data *new_base, *prev_base = NULL; + for (;;) { + new_base = find_unresolved_deltas_1(base, prev_base); + + if (new_base) { + prev_base = base; + base = new_base; + } else { + free(base); + base = prev_base; + if (!base) + return; + prev_base = base->base; + } + } +} - /* group by type (ref vs ofs) and then by value (sha-1 or offset) */ - return compare_delta_bases(&delta_a->base, &delta_b->base, - objects[delta_a->obj_no].type, - objects[delta_b->obj_no].type); +static int compare_ofs_delta_entry(const void *a, const void *b) +{ + const struct ofs_delta_entry *delta_a = a; + const struct ofs_delta_entry *delta_b = b; + + return delta_a->offset < delta_b->offset ? -1 : + delta_a->offset > delta_b->offset ? 1 : + 0; +} + +static int compare_ref_delta_entry(const void *a, const void *b) +{ + const struct ref_delta_entry *delta_a = a; + const struct ref_delta_entry *delta_b = b; + + return hashcmp(delta_a->sha1, delta_b->sha1); +} + +static void resolve_base(struct object_entry *obj) +{ + struct base_data *base_obj = alloc_base_data(); + base_obj->obj = obj; + base_obj->data = NULL; + find_unresolved_deltas(base_obj); +} + +#ifndef NO_PTHREADS +static void *threaded_second_pass(void *data) +{ + set_thread_data(data); + for (;;) { + int i; + counter_lock(); + display_progress(progress, nr_resolved_deltas); + counter_unlock(); + work_lock(); + while (nr_dispatched < nr_objects && + is_delta_type(objects[nr_dispatched].type)) + nr_dispatched++; + if (nr_dispatched >= nr_objects) { + work_unlock(); + break; + } + i = nr_dispatched++; + work_unlock(); + + resolve_base(&objects[i]); + } + return NULL; } +#endif -/* Parse all objects and return the pack content SHA1 hash */ +/* + * First pass: + * - find locations of all objects; + * - calculate SHA1 of all non-delta objects; + * - remember base (SHA1 or offset) for all deltas. + */ static void parse_pack_objects(unsigned char *sha1) { - int i; - struct delta_entry *delta = deltas; + int i, nr_delays = 0; + struct ofs_delta_entry *ofs_delta = ofs_deltas; + unsigned char ref_delta_sha1[20]; struct stat st; - /* - * First pass: - * - find locations of all objects; - * - calculate SHA1 of all non-delta objects; - * - remember base (SHA1 or offset) for all deltas. - */ if (verbose) progress = start_progress( - from_stdin ? "Receiving objects" : "Indexing objects", + from_stdin ? _("Receiving objects") : _("Indexing objects"), nr_objects); for (i = 0; i < nr_objects; i++) { struct object_entry *obj = &objects[i]; - void *data = unpack_raw_entry(obj, &delta->base); + void *data = unpack_raw_entry(obj, &ofs_delta->offset, + ref_delta_sha1, obj->idx.sha1); obj->real_type = obj->type; - if (is_delta_type(obj->type)) { - nr_deltas++; - delta->obj_no = i; - delta++; + if (obj->type == OBJ_OFS_DELTA) { + nr_ofs_deltas++; + ofs_delta->obj_no = i; + ofs_delta++; + } else if (obj->type == OBJ_REF_DELTA) { + ALLOC_GROW(ref_deltas, nr_ref_deltas + 1, ref_deltas_alloc); + hashcpy(ref_deltas[nr_ref_deltas].sha1, ref_delta_sha1); + ref_deltas[nr_ref_deltas].obj_no = i; + nr_ref_deltas++; + } else if (!data) { + /* large blobs, check later */ + obj->real_type = OBJ_BAD; + nr_delays++; } else - sha1_object(data, obj->size, obj->type, obj->idx.sha1); + sha1_object(data, NULL, obj->size, obj->type, obj->idx.sha1); free(data); display_progress(progress, i+1); } @@ -655,53 +1147,137 @@ static void parse_pack_objects(unsigned char *sha1) flush(); git_SHA1_Final(sha1, &input_ctx); if (hashcmp(fill(20), sha1)) - die("pack is corrupted (SHA1 mismatch)"); + die(_("pack is corrupted (SHA1 mismatch)")); use(20); /* If input_fd is a file, we should have reached its end now. */ if (fstat(input_fd, &st)) - die_errno("cannot fstat packfile"); + die_errno(_("cannot fstat packfile")); if (S_ISREG(st.st_mode) && lseek(input_fd, 0, SEEK_CUR) - input_len != st.st_size) - die("pack has junk at the end"); + die(_("pack has junk at the end")); + + for (i = 0; i < nr_objects; i++) { + struct object_entry *obj = &objects[i]; + if (obj->real_type != OBJ_BAD) + continue; + obj->real_type = obj->type; + sha1_object(NULL, obj, obj->size, obj->type, obj->idx.sha1); + nr_delays--; + } + if (nr_delays) + die(_("confusion beyond insanity in parse_pack_objects()")); +} - if (!nr_deltas) +/* + * Second pass: + * - for all non-delta objects, look if it is used as a base for + * deltas; + * - if used as a base, uncompress the object and apply all deltas, + * recursively checking if the resulting object is used as a base + * for some more deltas. + */ +static void resolve_deltas(void) +{ + int i; + + if (!nr_ofs_deltas && !nr_ref_deltas) return; /* Sort deltas by base SHA1/offset for fast searching */ - qsort(deltas, nr_deltas, sizeof(struct delta_entry), - compare_delta_entry); + qsort(ofs_deltas, nr_ofs_deltas, sizeof(struct ofs_delta_entry), + compare_ofs_delta_entry); + qsort(ref_deltas, nr_ref_deltas, sizeof(struct ref_delta_entry), + compare_ref_delta_entry); - /* - * Second pass: - * - for all non-delta objects, look if it is used as a base for - * deltas; - * - if used as a base, uncompress the object and apply all deltas, - * recursively checking if the resulting object is used as a base - * for some more deltas. - */ if (verbose) - progress = start_progress("Resolving deltas", nr_deltas); + progress = start_progress(_("Resolving deltas"), + nr_ref_deltas + nr_ofs_deltas); + +#ifndef NO_PTHREADS + nr_dispatched = 0; + if (nr_threads > 1 || getenv("GIT_FORCE_THREADS")) { + init_thread(); + for (i = 0; i < nr_threads; i++) { + int ret = pthread_create(&thread_data[i].thread, NULL, + threaded_second_pass, thread_data + i); + if (ret) + die(_("unable to create thread: %s"), + strerror(ret)); + } + for (i = 0; i < nr_threads; i++) + pthread_join(thread_data[i].thread, NULL); + cleanup_thread(); + return; + } +#endif + for (i = 0; i < nr_objects; i++) { struct object_entry *obj = &objects[i]; - struct base_data base_obj; if (is_delta_type(obj->type)) continue; - base_obj.obj = obj; - base_obj.data = NULL; - find_unresolved_deltas(&base_obj, NULL); + resolve_base(obj); display_progress(progress, nr_resolved_deltas); } } +/* + * Third pass: + * - append objects to convert thin pack to full pack if required + * - write the final 20-byte SHA-1 + */ +static void fix_unresolved_deltas(struct sha1file *f); +static void conclude_pack(int fix_thin_pack, const char *curr_pack, unsigned char *pack_sha1) +{ + if (nr_ref_deltas + nr_ofs_deltas == nr_resolved_deltas) { + stop_progress(&progress); + /* Flush remaining pack final 20-byte SHA1. */ + flush(); + return; + } + + if (fix_thin_pack) { + struct sha1file *f; + unsigned char read_sha1[20], tail_sha1[20]; + struct strbuf msg = STRBUF_INIT; + int nr_unresolved = nr_ofs_deltas + nr_ref_deltas - nr_resolved_deltas; + int nr_objects_initial = nr_objects; + if (nr_unresolved <= 0) + die(_("confusion beyond insanity")); + REALLOC_ARRAY(objects, nr_objects + nr_unresolved + 1); + memset(objects + nr_objects + 1, 0, + nr_unresolved * sizeof(*objects)); + f = sha1fd(output_fd, curr_pack); + fix_unresolved_deltas(f); + strbuf_addf(&msg, Q_("completed with %d local object", + "completed with %d local objects", + nr_objects - nr_objects_initial), + nr_objects - nr_objects_initial); + stop_progress_msg(&progress, msg.buf); + strbuf_release(&msg); + sha1close(f, tail_sha1, 0); + hashcpy(read_sha1, pack_sha1); + fixup_pack_header_footer(output_fd, pack_sha1, + curr_pack, nr_objects, + read_sha1, consumed_bytes-20); + if (hashcmp(read_sha1, tail_sha1) != 0) + die(_("Unexpected tail checksum for %s " + "(disk corruption?)"), curr_pack); + } + if (nr_ofs_deltas + nr_ref_deltas != nr_resolved_deltas) + die(Q_("pack has %d unresolved delta", + "pack has %d unresolved deltas", + nr_ofs_deltas + nr_ref_deltas - nr_resolved_deltas), + nr_ofs_deltas + nr_ref_deltas - nr_resolved_deltas); +} + static int write_compressed(struct sha1file *f, void *in, unsigned int size) { git_zstream stream; int status; unsigned char outbuf[4096]; - memset(&stream, 0, sizeof(stream)); git_deflate_init(&stream, zlib_compression_level); stream.next_in = in; stream.avail_in = size; @@ -714,7 +1290,7 @@ static int write_compressed(struct sha1file *f, void *in, unsigned int size) } while (status == Z_OK); if (status != Z_STREAM_END) - die("unable to deflate appended object (%d)", status); + die(_("unable to deflate appended object (%d)"), status); size = stream.total_out; git_deflate_end(&stream); return size; @@ -752,15 +1328,15 @@ static struct object_entry *append_obj_to_pack(struct sha1file *f, static int delta_pos_compare(const void *_a, const void *_b) { - struct delta_entry *a = *(struct delta_entry **)_a; - struct delta_entry *b = *(struct delta_entry **)_b; + struct ref_delta_entry *a = *(struct ref_delta_entry **)_a; + struct ref_delta_entry *b = *(struct ref_delta_entry **)_b; return a->obj_no - b->obj_no; } -static void fix_unresolved_deltas(struct sha1file *f, int nr_unresolved) +static void fix_unresolved_deltas(struct sha1file *f) { - struct delta_entry **sorted_by_pos; - int i, n = 0; + struct ref_delta_entry **sorted_by_pos; + int i; /* * Since many unresolved deltas may well be themselves base objects @@ -772,31 +1348,28 @@ static void fix_unresolved_deltas(struct sha1file *f, int nr_unresolved) * before deltas depending on them, a good heuristic is to start * resolving deltas in the same order as their position in the pack. */ - sorted_by_pos = xmalloc(nr_unresolved * sizeof(*sorted_by_pos)); - for (i = 0; i < nr_deltas; i++) { - if (objects[deltas[i].obj_no].real_type != OBJ_REF_DELTA) - continue; - sorted_by_pos[n++] = &deltas[i]; - } - qsort(sorted_by_pos, n, sizeof(*sorted_by_pos), delta_pos_compare); + ALLOC_ARRAY(sorted_by_pos, nr_ref_deltas); + for (i = 0; i < nr_ref_deltas; i++) + sorted_by_pos[i] = &ref_deltas[i]; + qsort(sorted_by_pos, nr_ref_deltas, sizeof(*sorted_by_pos), delta_pos_compare); - for (i = 0; i < n; i++) { - struct delta_entry *d = sorted_by_pos[i]; + for (i = 0; i < nr_ref_deltas; i++) { + struct ref_delta_entry *d = sorted_by_pos[i]; enum object_type type; - struct base_data base_obj; + struct base_data *base_obj = alloc_base_data(); if (objects[d->obj_no].real_type != OBJ_REF_DELTA) continue; - base_obj.data = read_sha1_file(d->base.sha1, &type, &base_obj.size); - if (!base_obj.data) + base_obj->data = read_sha1_file(d->sha1, &type, &base_obj->size); + if (!base_obj->data) continue; - if (check_sha1_signature(d->base.sha1, base_obj.data, - base_obj.size, typename(type))) - die("local object %s is corrupt", sha1_to_hex(d->base.sha1)); - base_obj.obj = append_obj_to_pack(f, d->base.sha1, - base_obj.data, base_obj.size, type); - find_unresolved_deltas(&base_obj, NULL); + if (check_sha1_signature(d->sha1, base_obj->data, + base_obj->size, typename(type))) + die(_("local object %s is corrupt"), sha1_to_hex(d->sha1)); + base_obj->obj = append_obj_to_pack(f, d->sha1, + base_obj->data, base_obj->size, type); + find_unresolved_deltas(base_obj); display_progress(progress, nr_resolved_deltas); } free(sorted_by_pos); @@ -817,7 +1390,7 @@ static void final(const char *final_pack_name, const char *curr_pack_name, fsync_or_die(output_fd, curr_pack_name); err = close(output_fd); if (err) - die_errno("error while closing pack file"); + die_errno(_("error while closing pack file")); } if (keep_msg) { @@ -830,16 +1403,16 @@ static void final(const char *final_pack_name, const char *curr_pack_name, if (keep_fd < 0) { if (errno != EEXIST) - die_errno("cannot write keep file '%s'", - keep_name); + die_errno(_("cannot write keep file '%s'"), + keep_name ? keep_name : name); } else { if (keep_msg_len > 0) { write_or_die(keep_fd, keep_msg, keep_msg_len); write_or_die(keep_fd, "\n", 1); } if (close(keep_fd) != 0) - die_errno("cannot close written keep file '%s'", - keep_name); + die_errno(_("cannot close written keep file '%s'"), + keep_name ? keep_name : name); report = "keep"; } } @@ -850,8 +1423,8 @@ static void final(const char *final_pack_name, const char *curr_pack_name, get_object_directory(), sha1_to_hex(sha1)); final_pack_name = name; } - if (move_temp_to_file(curr_pack_name, final_pack_name)) - die("cannot store pack file"); + if (finalize_object_file(curr_pack_name, final_pack_name)) + die(_("cannot store pack file")); } else if (from_stdin) chmod(final_pack_name, 0444); @@ -861,8 +1434,8 @@ static void final(const char *final_pack_name, const char *curr_pack_name, get_object_directory(), sha1_to_hex(sha1)); final_index_name = name; } - if (move_temp_to_file(curr_index_name, final_index_name)) - die("cannot store index file"); + if (finalize_object_file(curr_index_name, final_index_name)) + die(_("cannot store index file")); } else chmod(final_index_name, 0444); @@ -895,7 +1468,19 @@ static int git_index_pack_config(const char *k, const char *v, void *cb) if (!strcmp(k, "pack.indexversion")) { opts->version = git_config_int(k, v); if (opts->version > 2) - die("bad pack.indexversion=%"PRIu32, opts->version); + die(_("bad pack.indexversion=%"PRIu32), opts->version); + return 0; + } + if (!strcmp(k, "pack.threads")) { + nr_threads = git_config_int(k, v); + if (nr_threads < 0) + die(_("invalid number of threads specified (%d)"), + nr_threads); +#ifdef NO_PTHREADS + if (nr_threads != 1) + warning(_("no threads support, ignoring %s"), k); + nr_threads = 1; +#endif return 0; } return git_default_config(k, v, cb); @@ -931,6 +1516,7 @@ static void read_v2_anomalous_offsets(struct packed_git *p, if (!(off & 0x80000000)) continue; off = off & 0x7fffffff; + check_pack_index_ptr(p, &idx2[off * 2]); if (idx2[off * 2]) continue; /* @@ -951,9 +1537,9 @@ static void read_idx_option(struct pack_idx_option *opts, const char *pack_name) struct packed_git *p = add_packed_git(pack_name, strlen(pack_name), 1); if (!p) - die("Cannot open existing pack file '%s'", pack_name); + die(_("Cannot open existing pack file '%s'"), pack_name); if (open_pack_index(p)) - die("Cannot open existing pack idx file for '%s'", pack_name); + die(_("Cannot open existing pack idx file for '%s'"), pack_name); /* Read the attributes from the existing idx file */ opts->version = p->index_version; @@ -974,7 +1560,7 @@ static void read_idx_option(struct pack_idx_option *opts, const char *pack_name) static void show_pack_info(int stat_only) { - int i, baseobjects = nr_objects - nr_deltas; + int i, baseobjects = nr_objects - nr_ref_deltas - nr_ofs_deltas; unsigned long *chain_histogram = NULL; if (deepest_delta) @@ -984,7 +1570,7 @@ static void show_pack_info(int stat_only) struct object_entry *obj = &objects[i]; if (is_delta_type(obj->type)) - chain_histogram[obj->delta_depth - 1]++; + chain_histogram[obj_stat[i].delta_depth - 1]++; if (stat_only) continue; printf("%s %-6s %lu %lu %"PRIuMAX, @@ -993,45 +1579,63 @@ static void show_pack_info(int stat_only) (unsigned long)(obj[1].idx.offset - obj->idx.offset), (uintmax_t)obj->idx.offset); if (is_delta_type(obj->type)) { - struct object_entry *bobj = &objects[obj->base_object_no]; - printf(" %u %s", obj->delta_depth, sha1_to_hex(bobj->idx.sha1)); + struct object_entry *bobj = &objects[obj_stat[i].base_object_no]; + printf(" %u %s", obj_stat[i].delta_depth, sha1_to_hex(bobj->idx.sha1)); } putchar('\n'); } if (baseobjects) - printf("non delta: %d object%s\n", - baseobjects, baseobjects > 1 ? "s" : ""); + printf_ln(Q_("non delta: %d object", + "non delta: %d objects", + baseobjects), + baseobjects); for (i = 0; i < deepest_delta; i++) { if (!chain_histogram[i]) continue; - printf("chain length = %d: %lu object%s\n", - i + 1, - chain_histogram[i], - chain_histogram[i] > 1 ? "s" : ""); + printf_ln(Q_("chain length = %d: %lu object", + "chain length = %d: %lu objects", + chain_histogram[i]), + i + 1, + chain_histogram[i]); } } +static const char *derive_filename(const char *pack_name, const char *suffix, + struct strbuf *buf) +{ + size_t len; + if (!strip_suffix(pack_name, ".pack", &len)) + die(_("packfile name '%s' does not end with '.pack'"), + pack_name); + strbuf_add(buf, pack_name, len); + strbuf_addstr(buf, suffix); + return buf->buf; +} + int cmd_index_pack(int argc, const char **argv, const char *prefix) { - int i, fix_thin_pack = 0, verify = 0, stat_only = 0, stat = 0; - const char *curr_pack, *curr_index; + int i, fix_thin_pack = 0, verify = 0, stat_only = 0; + const char *curr_index; const char *index_name = NULL, *pack_name = NULL; const char *keep_name = NULL, *keep_msg = NULL; - char *index_name_buf = NULL, *keep_name_buf = NULL; + struct strbuf index_name_buf = STRBUF_INIT, + keep_name_buf = STRBUF_INIT; struct pack_idx_entry **idx_objects; struct pack_idx_option opts; unsigned char pack_sha1[20]; + unsigned foreign_nr = 1; /* zero is a "good" value, assume bad */ if (argc == 2 && !strcmp(argv[1], "-h")) usage(index_pack_usage); - read_replace_refs = 0; + check_replace_refs = 0; + fsck_options.walk = mark_link; reset_pack_idx_option(&opts); git_config(git_index_pack_config, &opts); if (prefix && chdir(prefix)) - die("Cannot come back to cwd"); + die(_("Cannot come back to cwd")); for (i = 1; i < argc; i++) { const char *arg = argv[i]; @@ -1043,20 +1647,39 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix) fix_thin_pack = 1; } else if (!strcmp(arg, "--strict")) { strict = 1; + do_fsck_object = 1; + } else if (skip_prefix(arg, "--strict=", &arg)) { + strict = 1; + do_fsck_object = 1; + fsck_set_msg_types(&fsck_options, arg); + } else if (!strcmp(arg, "--check-self-contained-and-connected")) { + strict = 1; + check_self_contained_and_connected = 1; } else if (!strcmp(arg, "--verify")) { verify = 1; } else if (!strcmp(arg, "--verify-stat")) { verify = 1; - stat = 1; + show_stat = 1; } else if (!strcmp(arg, "--verify-stat-only")) { verify = 1; - stat = 1; + show_stat = 1; stat_only = 1; } else if (!strcmp(arg, "--keep")) { keep_msg = ""; - } else if (!prefixcmp(arg, "--keep=")) { + } else if (starts_with(arg, "--keep=")) { keep_msg = arg + 7; - } else if (!prefixcmp(arg, "--pack_header=")) { + } else if (starts_with(arg, "--threads=")) { + char *end; + nr_threads = strtoul(arg+10, &end, 0); + if (!arg[10] || *end || nr_threads < 0) + usage(index_pack_usage); +#ifdef NO_PTHREADS + if (nr_threads != 1) + warning(_("no threads support, " + "ignoring %s"), arg); + nr_threads = 1; +#endif + } else if (starts_with(arg, "--pack_header=")) { struct pack_header *hdr; char *c; @@ -1064,10 +1687,10 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix) hdr->hdr_signature = htonl(PACK_SIGNATURE); hdr->hdr_version = htonl(strtoul(arg + 14, &c, 10)); if (*c != ',') - die("bad %s", arg); + die(_("bad %s"), arg); hdr->hdr_entries = htonl(strtoul(c + 1, &c, 10)); if (*c) - die("bad %s", arg); + die(_("bad %s"), arg); input_len = sizeof(*hdr); } else if (!strcmp(arg, "-v")) { verbose = 1; @@ -1075,15 +1698,15 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix) if (index_name || (i+1) >= argc) usage(index_pack_usage); index_name = argv[++i]; - } else if (!prefixcmp(arg, "--index-version=")) { + } else if (starts_with(arg, "--index-version=")) { char *c; opts.version = strtoul(arg + 16, &c, 10); if (opts.version > 2) - die("bad %s", arg); + die(_("bad %s"), arg); if (*c == ',') opts.off32_limit = strtoul(c+1, &c, 0); if (*c || opts.off32_limit & 0x80000000) - die("bad %s", arg); + die(_("bad %s"), arg); } else usage(index_pack_usage); continue; @@ -1097,83 +1720,48 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix) if (!pack_name && !from_stdin) usage(index_pack_usage); if (fix_thin_pack && !from_stdin) - die("--fix-thin cannot be used without --stdin"); - if (!index_name && pack_name) { - int len = strlen(pack_name); - if (!has_extension(pack_name, ".pack")) - die("packfile name '%s' does not end with '.pack'", - pack_name); - index_name_buf = xmalloc(len); - memcpy(index_name_buf, pack_name, len - 5); - strcpy(index_name_buf + len - 5, ".idx"); - index_name = index_name_buf; - } - if (keep_msg && !keep_name && pack_name) { - int len = strlen(pack_name); - if (!has_extension(pack_name, ".pack")) - die("packfile name '%s' does not end with '.pack'", - pack_name); - keep_name_buf = xmalloc(len); - memcpy(keep_name_buf, pack_name, len - 5); - strcpy(keep_name_buf + len - 5, ".keep"); - keep_name = keep_name_buf; - } + die(_("--fix-thin cannot be used without --stdin")); + if (!index_name && pack_name) + index_name = derive_filename(pack_name, ".idx", &index_name_buf); + if (keep_msg && !keep_name && pack_name) + keep_name = derive_filename(pack_name, ".keep", &keep_name_buf); + if (verify) { if (!index_name) - die("--verify with no packfile name given"); + die(_("--verify with no packfile name given")); read_idx_option(&opts, index_name); opts.flags |= WRITE_IDX_VERIFY | WRITE_IDX_STRICT; } if (strict) opts.flags |= WRITE_IDX_STRICT; +#ifndef NO_PTHREADS + if (!nr_threads) { + nr_threads = online_cpus(); + /* An experiment showed that more threads does not mean faster */ + if (nr_threads > 3) + nr_threads = 3; + } +#endif + curr_pack = open_pack_file(pack_name); parse_pack_header(); - objects = xcalloc(nr_objects + 1, sizeof(struct object_entry)); - deltas = xcalloc(nr_objects, sizeof(struct delta_entry)); + objects = xcalloc(st_add(nr_objects, 1), sizeof(struct object_entry)); + if (show_stat) + obj_stat = xcalloc(st_add(nr_objects, 1), sizeof(struct object_stat)); + ofs_deltas = xcalloc(nr_objects, sizeof(struct ofs_delta_entry)); parse_pack_objects(pack_sha1); - if (nr_deltas == nr_resolved_deltas) { - stop_progress(&progress); - /* Flush remaining pack final 20-byte SHA1. */ - flush(); - } else { - if (fix_thin_pack) { - struct sha1file *f; - unsigned char read_sha1[20], tail_sha1[20]; - char msg[48]; - int nr_unresolved = nr_deltas - nr_resolved_deltas; - int nr_objects_initial = nr_objects; - if (nr_unresolved <= 0) - die("confusion beyond insanity"); - objects = xrealloc(objects, - (nr_objects + nr_unresolved + 1) - * sizeof(*objects)); - f = sha1fd(output_fd, curr_pack); - fix_unresolved_deltas(f, nr_unresolved); - sprintf(msg, "completed with %d local objects", - nr_objects - nr_objects_initial); - stop_progress_msg(&progress, msg); - sha1close(f, tail_sha1, 0); - hashcpy(read_sha1, pack_sha1); - fixup_pack_header_footer(output_fd, pack_sha1, - curr_pack, nr_objects, - read_sha1, consumed_bytes-20); - if (hashcmp(read_sha1, tail_sha1) != 0) - die("Unexpected tail checksum for %s " - "(disk corruption?)", curr_pack); - } - if (nr_deltas != nr_resolved_deltas) - die("pack has %d unresolved deltas", - nr_deltas - nr_resolved_deltas); - } - free(deltas); + resolve_deltas(); + conclude_pack(fix_thin_pack, curr_pack, pack_sha1); + free(ofs_deltas); + free(ref_deltas); if (strict) - check_objects(); + foreign_nr = check_objects(); - if (stat) + if (show_stat) show_pack_info(stat_only); - idx_objects = xmalloc((nr_objects) * sizeof(struct pack_idx_entry *)); + ALLOC_ARRAY(idx_objects, nr_objects); for (i = 0; i < nr_objects; i++) idx_objects[i] = &objects[i].idx; curr_index = write_idx_file(index_name, idx_objects, nr_objects, &opts, pack_sha1); @@ -1187,12 +1775,18 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix) else close(input_fd); free(objects); - free(index_name_buf); - free(keep_name_buf); + strbuf_release(&index_name_buf); + strbuf_release(&keep_name_buf); if (pack_name == NULL) free((void *) curr_pack); if (index_name == NULL) free((void *) curr_index); + /* + * Let the caller know this pack is not self contained + */ + if (check_self_contained_and_connected && foreign_nr) + return 1; + return 0; } diff --git a/builtin/init-db.c b/builtin/init-db.c index 0dacb8b79c..b2d8d40a67 100644 --- a/builtin/init-db.c +++ b/builtin/init-db.c @@ -4,6 +4,7 @@ * Copyright (C) Linus Torvalds, 2005 */ #include "cache.h" +#include "refs.h" #include "builtin.h" #include "exec_cmd.h" #include "parse-options.h" @@ -23,22 +24,11 @@ static int init_shared_repository = -1; static const char *init_db_template_dir; static const char *git_link; -static void safe_create_dir(const char *dir, int share) -{ - if (mkdir(dir, 0777) < 0) { - if (errno != EEXIST) { - perror(dir); - exit(1); - } - } - else if (share && adjust_shared_perm(dir)) - die(_("Could not make %s writable by group"), dir); -} - -static void copy_templates_1(char *path, int baselen, - char *template, int template_baselen, +static void copy_templates_1(struct strbuf *path, struct strbuf *template, DIR *dir) { + size_t path_baselen = path->len; + size_t template_baselen = template->len; struct dirent *de; /* Note: if ".git/hooks" file exists in the repository being @@ -48,125 +38,115 @@ static void copy_templates_1(char *path, int baselen, * with the way the namespace under .git/ is organized, should * be really carefully chosen. */ - safe_create_dir(path, 1); + safe_create_dir(path->buf, 1); while ((de = readdir(dir)) != NULL) { struct stat st_git, st_template; - int namelen; int exists = 0; + strbuf_setlen(path, path_baselen); + strbuf_setlen(template, template_baselen); + if (de->d_name[0] == '.') continue; - namelen = strlen(de->d_name); - if ((PATH_MAX <= baselen + namelen) || - (PATH_MAX <= template_baselen + namelen)) - die(_("insanely long template name %s"), de->d_name); - memcpy(path + baselen, de->d_name, namelen+1); - memcpy(template + template_baselen, de->d_name, namelen+1); - if (lstat(path, &st_git)) { + strbuf_addstr(path, de->d_name); + strbuf_addstr(template, de->d_name); + if (lstat(path->buf, &st_git)) { if (errno != ENOENT) - die_errno(_("cannot stat '%s'"), path); + die_errno(_("cannot stat '%s'"), path->buf); } else exists = 1; - if (lstat(template, &st_template)) - die_errno(_("cannot stat template '%s'"), template); + if (lstat(template->buf, &st_template)) + die_errno(_("cannot stat template '%s'"), template->buf); if (S_ISDIR(st_template.st_mode)) { - DIR *subdir = opendir(template); - int baselen_sub = baselen + namelen; - int template_baselen_sub = template_baselen + namelen; + DIR *subdir = opendir(template->buf); if (!subdir) - die_errno(_("cannot opendir '%s'"), template); - path[baselen_sub++] = - template[template_baselen_sub++] = '/'; - path[baselen_sub] = - template[template_baselen_sub] = 0; - copy_templates_1(path, baselen_sub, - template, template_baselen_sub, - subdir); + die_errno(_("cannot opendir '%s'"), template->buf); + strbuf_addch(path, '/'); + strbuf_addch(template, '/'); + copy_templates_1(path, template, subdir); closedir(subdir); } else if (exists) continue; else if (S_ISLNK(st_template.st_mode)) { - char lnk[256]; - int len; - len = readlink(template, lnk, sizeof(lnk)); - if (len < 0) - die_errno(_("cannot readlink '%s'"), template); - if (sizeof(lnk) <= len) - die(_("insanely long symlink %s"), template); - lnk[len] = 0; - if (symlink(lnk, path)) - die_errno(_("cannot symlink '%s' '%s'"), lnk, path); + struct strbuf lnk = STRBUF_INIT; + if (strbuf_readlink(&lnk, template->buf, 0) < 0) + die_errno(_("cannot readlink '%s'"), template->buf); + if (symlink(lnk.buf, path->buf)) + die_errno(_("cannot symlink '%s' '%s'"), + lnk.buf, path->buf); + strbuf_release(&lnk); } else if (S_ISREG(st_template.st_mode)) { - if (copy_file(path, template, st_template.st_mode)) - die_errno(_("cannot copy '%s' to '%s'"), template, - path); + if (copy_file(path->buf, template->buf, st_template.st_mode)) + die_errno(_("cannot copy '%s' to '%s'"), + template->buf, path->buf); } else - error(_("ignoring template %s"), template); + error(_("ignoring template %s"), template->buf); } } static void copy_templates(const char *template_dir) { - char path[PATH_MAX]; - char template_path[PATH_MAX]; - int template_len; + struct strbuf path = STRBUF_INIT; + struct strbuf template_path = STRBUF_INIT; + size_t template_len; + struct repository_format template_format; + struct strbuf err = STRBUF_INIT; DIR *dir; - const char *git_dir = get_git_dir(); - int len = strlen(git_dir); + char *to_free = NULL; if (!template_dir) template_dir = getenv(TEMPLATE_DIR_ENVIRONMENT); if (!template_dir) template_dir = init_db_template_dir; if (!template_dir) - template_dir = system_path(DEFAULT_GIT_TEMPLATE_DIR); - if (!template_dir[0]) + template_dir = to_free = system_path(DEFAULT_GIT_TEMPLATE_DIR); + if (!template_dir[0]) { + free(to_free); return; - template_len = strlen(template_dir); - if (PATH_MAX <= (template_len+strlen("/config"))) - die(_("insanely long template path %s"), template_dir); - strcpy(template_path, template_dir); - if (template_path[template_len-1] != '/') { - template_path[template_len++] = '/'; - template_path[template_len] = 0; } - dir = opendir(template_path); + + strbuf_addstr(&template_path, template_dir); + strbuf_complete(&template_path, '/'); + template_len = template_path.len; + + dir = opendir(template_path.buf); if (!dir) { warning(_("templates not found %s"), template_dir); - return; + goto free_return; } /* Make sure that template is from the correct vintage */ - strcpy(template_path + template_len, "config"); - repository_format_version = 0; - git_config_from_file(check_repository_format_version, - template_path, NULL); - template_path[template_len] = 0; - - if (repository_format_version && - repository_format_version != GIT_REPO_VERSION) { - warning(_("not copying templates of " - "a wrong format version %d from '%s'"), - repository_format_version, - template_dir); - closedir(dir); - return; + strbuf_addstr(&template_path, "config"); + read_repository_format(&template_format, template_path.buf); + strbuf_setlen(&template_path, template_len); + + /* + * No mention of version at all is OK, but anything else should be + * verified. + */ + if (template_format.version >= 0 && + verify_repository_format(&template_format, &err) < 0) { + warning(_("not copying templates from '%s': %s"), + template_dir, err.buf); + strbuf_release(&err); + goto close_free_return; } - memcpy(path, git_dir, len); - if (len && path[len - 1] != '/') - path[len++] = '/'; - path[len] = 0; - copy_templates_1(path, len, - template_path, template_len, - dir); + strbuf_addstr(&path, get_git_dir()); + strbuf_complete(&path, '/'); + copy_templates_1(&path, &template_path, dir); +close_free_return: closedir(dir); +free_return: + free(to_free); + strbuf_release(&path); + strbuf_release(&template_path); } static int git_init_db_config(const char *k, const char *v, void *cb) @@ -177,30 +157,36 @@ static int git_init_db_config(const char *k, const char *v, void *cb) return 0; } +/* + * If the git_dir is not directly inside the working tree, then git will not + * find it by default, and we need to set the worktree explicitly. + */ +static int needs_work_tree_config(const char *git_dir, const char *work_tree) +{ + if (!strcmp(work_tree, "/") && !strcmp(git_dir, "/.git")) + return 0; + if (skip_prefix(git_dir, work_tree, &git_dir) && + !strcmp(git_dir, "/.git")) + return 0; + return 1; +} + static int create_default_files(const char *template_path) { - const char *git_dir = get_git_dir(); - unsigned len = strlen(git_dir); - static char path[PATH_MAX]; struct stat st1; + struct strbuf buf = STRBUF_INIT; + char *path; char repo_version_string[10]; char junk[2]; int reinit; int filemode; - if (len > sizeof(path)-50) - die(_("insane git directory %s"), git_dir); - memcpy(path, git_dir, len); - - if (len && path[len-1] != '/') - path[len++] = '/'; - /* * Create .git/refs/{heads,tags} */ - safe_create_dir(git_path("refs"), 1); - safe_create_dir(git_path("refs/heads"), 1); - safe_create_dir(git_path("refs/tags"), 1); + safe_create_dir(git_path_buf(&buf, "refs"), 1); + safe_create_dir(git_path_buf(&buf, "refs/heads"), 1); + safe_create_dir(git_path_buf(&buf, "refs/tags"), 1); /* Just look for `init.templatedir` */ git_config(git_init_db_config, NULL); @@ -216,24 +202,24 @@ static int create_default_files(const char *template_path) /* reading existing config may have overwrote it */ if (init_shared_repository != -1) - shared_repository = init_shared_repository; + set_shared_repository(init_shared_repository); /* * We would have created the above under user's umask -- under * shared-repository settings, we would need to fix them up. */ - if (shared_repository) { + if (get_shared_repository()) { adjust_shared_perm(get_git_dir()); - adjust_shared_perm(git_path("refs")); - adjust_shared_perm(git_path("refs/heads")); - adjust_shared_perm(git_path("refs/tags")); + adjust_shared_perm(git_path_buf(&buf, "refs")); + adjust_shared_perm(git_path_buf(&buf, "refs/heads")); + adjust_shared_perm(git_path_buf(&buf, "refs/tags")); } /* * Create the default symlink from ".git/HEAD" to the "master" * branch, if it does not exist yet. */ - strcpy(path + len, "HEAD"); + path = git_path_buf(&buf, "HEAD"); reinit = (!access(path, R_OK) || readlink(path, junk, sizeof(junk)-1) != -1); if (!reinit) { @@ -242,19 +228,21 @@ static int create_default_files(const char *template_path) } /* This forces creation of new config file */ - sprintf(repo_version_string, "%d", GIT_REPO_VERSION); + xsnprintf(repo_version_string, sizeof(repo_version_string), + "%d", GIT_REPO_VERSION); git_config_set("core.repositoryformatversion", repo_version_string); - path[len] = 0; - strcpy(path + len, "config"); - /* Check filemode trustability */ + path = git_path_buf(&buf, "config"); filemode = TEST_FILEMODE; if (TEST_FILEMODE && !lstat(path, &st1)) { struct stat st2; filemode = (!chmod(path, st1.st_mode ^ S_IXUSR) && !lstat(path, &st2) && - st1.st_mode != st2.st_mode); + st1.st_mode != st2.st_mode && + !chmod(path, st1.st_mode)); + if (filemode && !reinit && (st1.st_mode & S_IXUSR)) + filemode = 0; } git_config_set("core.filemode", filemode ? "true" : "false"); @@ -265,17 +253,14 @@ static int create_default_files(const char *template_path) git_config_set("core.bare", "false"); /* allow template config file to override the default */ if (log_all_ref_updates == -1) - git_config_set("core.logallrefupdates", "true"); - if (prefixcmp(git_dir, work_tree) || - strcmp(git_dir + strlen(work_tree), "/.git")) { + git_config_set("core.logallrefupdates", "true"); + if (needs_work_tree_config(get_git_dir(), work_tree)) git_config_set("core.worktree", work_tree); - } } if (!reinit) { /* Check if symlink is supported in the work tree */ - path[len] = 0; - strcpy(path + len, "tXXXXXX"); + path = git_path_buf(&buf, "tXXXXXX"); if (!close(xmkstemp(path)) && !unlink(path) && !symlink("testing", path) && @@ -286,30 +271,35 @@ static int create_default_files(const char *template_path) git_config_set("core.symlinks", "false"); /* Check if the filesystem is case-insensitive */ - path[len] = 0; - strcpy(path + len, "CoNfIg"); + path = git_path_buf(&buf, "CoNfIg"); if (!access(path, F_OK)) git_config_set("core.ignorecase", "true"); + probe_utf8_pathname_composition(); } + strbuf_release(&buf); return reinit; } static void create_object_directory(void) { - const char *object_directory = get_object_directory(); - int len = strlen(object_directory); - char *path = xmalloc(len + 40); + struct strbuf path = STRBUF_INIT; + size_t baselen; + + strbuf_addstr(&path, get_object_directory()); + baselen = path.len; - memcpy(path, object_directory, len); + safe_create_dir(path.buf, 1); - safe_create_dir(object_directory, 1); - strcpy(path+len, "/pack"); - safe_create_dir(path, 1); - strcpy(path+len, "/info"); - safe_create_dir(path, 1); + strbuf_setlen(&path, baselen); + strbuf_addstr(&path, "/pack"); + safe_create_dir(path.buf, 1); - free(path); + strbuf_setlen(&path, baselen); + strbuf_addstr(&path, "/info"); + safe_create_dir(path.buf, 1); + + strbuf_release(&path); } int set_git_dir_init(const char *git_dir, const char *real_git_dir, @@ -329,19 +319,19 @@ int set_git_dir_init(const char *git_dir, const char *real_git_dir, * moving the target repo later on in separate_git_dir() */ git_link = xstrdup(real_path(git_dir)); + set_git_dir(real_path(real_git_dir)); } else { - real_git_dir = real_path(git_dir); + set_git_dir(real_path(git_dir)); git_link = NULL; } - set_git_dir(real_path(real_git_dir)); + startup_info->have_repository = 1; return 0; } static void separate_git_dir(const char *git_dir) { struct stat st; - FILE *fp; if (!stat(git_link, &st)) { const char *src; @@ -357,11 +347,7 @@ static void separate_git_dir(const char *git_dir) die_errno(_("unable to move %s to %s"), src, git_dir); } - fp = fopen(git_link, "w"); - if (!fp) - die(_("Could not create git link %s"), git_link); - fprintf(fp, "gitdir: %s\n", git_dir); - fclose(fp); + write_file(git_link, "gitdir: %s", git_dir); } int init_db(const char *template_dir, unsigned int flags) @@ -387,7 +373,7 @@ int init_db(const char *template_dir, unsigned int flags) create_object_directory(); - if (shared_repository) { + if (get_shared_repository()) { char buf[10]; /* We do not spell "group" and such, so that * the configuration can be read by older version @@ -395,15 +381,15 @@ int init_db(const char *template_dir, unsigned int flags) * and compatibility values for PERM_GROUP and * PERM_EVERYBODY. */ - if (shared_repository < 0) + if (get_shared_repository() < 0) /* force to the mode value */ - sprintf(buf, "0%o", -shared_repository); - else if (shared_repository == PERM_GROUP) - sprintf(buf, "%d", OLD_PERM_GROUP); - else if (shared_repository == PERM_EVERYBODY) - sprintf(buf, "%d", OLD_PERM_EVERYBODY); + xsnprintf(buf, sizeof(buf), "0%o", -get_shared_repository()); + else if (get_shared_repository() == PERM_GROUP) + xsnprintf(buf, sizeof(buf), "%d", OLD_PERM_GROUP); + else if (get_shared_repository() == PERM_EVERYBODY) + xsnprintf(buf, sizeof(buf), "%d", OLD_PERM_EVERYBODY); else - die("oops"); + die("BUG: invalid value for shared_repository"); git_config_set("core.sharedrepository", buf); git_config_set("receive.denyNonFastforwards", "true"); } @@ -411,14 +397,12 @@ int init_db(const char *template_dir, unsigned int flags) if (!(flags & INIT_DB_QUIET)) { int len = strlen(git_dir); - /* - * TRANSLATORS: The first '%s' is either "Reinitialized - * existing" or "Initialized empty", the second " shared" or - * "", and the last '%s%s' is the verbatim directory name. - */ + /* TRANSLATORS: The first '%s' is either "Reinitialized + existing" or "Initialized empty", the second " shared" or + "", and the last '%s%s' is the verbatim directory name. */ printf(_("%s%s Git repository in %s%s\n"), reinit ? _("Reinitialized existing") : _("Initialized empty"), - shared_repository ? _(" shared") : "", + get_shared_repository() ? _(" shared") : "", git_dir, len && git_dir[len-1] != '/' ? "/" : ""); } @@ -427,8 +411,9 @@ int init_db(const char *template_dir, unsigned int flags) static int guess_repository_type(const char *git_dir) { - char cwd[PATH_MAX]; const char *slash; + char *cwd; + int cwd_is_git_dir; /* * "GIT_DIR=. git init" is always bare. @@ -436,9 +421,10 @@ static int guess_repository_type(const char *git_dir) */ if (!strcmp(".", git_dir)) return 1; - if (!getcwd(cwd, sizeof(cwd))) - die_errno(_("cannot tell cwd")); - if (!strcmp(git_dir, cwd)) + cwd = xgetcwd(); + cwd_is_git_dir = !strcmp(git_dir, cwd); + free(cwd); + if (cwd_is_git_dir) return 1; /* * "GIT_DIR=.git or GIT_DIR=something/.git is usually not. @@ -463,7 +449,7 @@ static int shared_callback(const struct option *opt, const char *arg, int unset) } static const char *const init_db_usage[] = { - "git init [-q | --quiet] [--bare] [--template=<template-directory>] [--shared[=<permissions>]] [directory]", + N_("git init [-q | --quiet] [--bare] [--template=<template-directory>] [--shared[=<permissions>]] [<directory>]"), NULL }; @@ -481,17 +467,17 @@ int cmd_init_db(int argc, const char **argv, const char *prefix) const char *template_dir = NULL; unsigned int flags = 0; const struct option init_db_options[] = { - OPT_STRING(0, "template", &template_dir, "template-directory", - "directory from which templates will be used"), + OPT_STRING(0, "template", &template_dir, N_("template-directory"), + N_("directory from which templates will be used")), OPT_SET_INT(0, "bare", &is_bare_repository_cfg, - "create a bare repository", 1), + N_("create a bare repository"), 1), { OPTION_CALLBACK, 0, "shared", &init_shared_repository, - "permissions", - "specify that the git repository is to be shared amongst several users", + N_("permissions"), + N_("specify that the git repository is to be shared amongst several users"), PARSE_OPT_OPTARG | PARSE_OPT_NONEG, shared_callback, 0}, - OPT_BIT('q', "quiet", &flags, "be quiet", INIT_DB_QUIET), - OPT_STRING(0, "separate-git-dir", &real_git_dir, "gitdir", - "separate git dir from working tree"), + OPT_BIT('q', "quiet", &flags, N_("be quiet"), INIT_DB_QUIET), + OPT_STRING(0, "separate-git-dir", &real_git_dir, N_("gitdir"), + N_("separate git dir from working tree")), OPT_END() }; @@ -511,19 +497,20 @@ int cmd_init_db(int argc, const char **argv, const char *prefix) * and we know shared_repository should always be 0; * but just in case we play safe. */ - saved = shared_repository; - shared_repository = 0; + saved = get_shared_repository(); + set_shared_repository(0); switch (safe_create_leading_directories_const(argv[0])) { - case -3: + case SCLD_OK: + case SCLD_PERMS: + break; + case SCLD_EXISTS: errno = EEXIST; /* fallthru */ - case -1: - die_errno(_("cannot mkdir %s"), argv[0]); - break; default: + die_errno(_("cannot mkdir %s"), argv[0]); break; } - shared_repository = saved; + set_shared_repository(saved); if (mkdir(argv[0], 0777) < 0) die_errno(_("cannot mkdir %s"), argv[0]); mkdir_tried = 1; @@ -535,14 +522,13 @@ int cmd_init_db(int argc, const char **argv, const char *prefix) usage(init_db_usage[0]); } if (is_bare_repository_cfg == 1) { - static char git_dir[PATH_MAX+1]; - - setenv(GIT_DIR_ENVIRONMENT, - getcwd(git_dir, sizeof(git_dir)), argc > 0); + char *cwd = xgetcwd(); + setenv(GIT_DIR_ENVIRONMENT, cwd, argc > 0); + free(cwd); } if (init_shared_repository != -1) - shared_repository = init_shared_repository; + set_shared_repository(init_shared_repository); /* * GIT_WORK_TREE makes sense only in conjunction with GIT_DIR @@ -572,13 +558,10 @@ int cmd_init_db(int argc, const char **argv, const char *prefix) git_work_tree_cfg = xstrdup(real_path(rel)); free(rel); } - if (!git_work_tree_cfg) { - git_work_tree_cfg = xcalloc(PATH_MAX, 1); - if (!getcwd(git_work_tree_cfg, PATH_MAX)) - die_errno (_("Cannot access current working directory")); - } + if (!git_work_tree_cfg) + git_work_tree_cfg = xgetcwd(); if (work_tree) - set_git_work_tree(real_path(work_tree)); + set_git_work_tree(work_tree); else set_git_work_tree(git_work_tree_cfg); if (access(get_git_work_tree(), X_OK)) @@ -587,7 +570,7 @@ int cmd_init_db(int argc, const char **argv, const char *prefix) } else { if (work_tree) - set_git_work_tree(real_path(work_tree)); + set_git_work_tree(work_tree); } set_git_dir_init(git_dir, real_git_dir, 1); diff --git a/builtin/interpret-trailers.c b/builtin/interpret-trailers.c new file mode 100644 index 0000000000..b99ae4be88 --- /dev/null +++ b/builtin/interpret-trailers.c @@ -0,0 +1,49 @@ +/* + * Builtin "git interpret-trailers" + * + * Copyright (c) 2013, 2014 Christian Couder <chriscool@tuxfamily.org> + * + */ + +#include "cache.h" +#include "builtin.h" +#include "parse-options.h" +#include "string-list.h" +#include "trailer.h" + +static const char * const git_interpret_trailers_usage[] = { + N_("git interpret-trailers [--in-place] [--trim-empty] [(--trailer <token>[(=|:)<value>])...] [<file>...]"), + NULL +}; + +int cmd_interpret_trailers(int argc, const char **argv, const char *prefix) +{ + int in_place = 0; + int trim_empty = 0; + struct string_list trailers = STRING_LIST_INIT_DUP; + + struct option options[] = { + OPT_BOOL(0, "in-place", &in_place, N_("edit files in place")), + OPT_BOOL(0, "trim-empty", &trim_empty, N_("trim empty trailers")), + OPT_STRING_LIST(0, "trailer", &trailers, N_("trailer"), + N_("trailer(s) to add")), + OPT_END() + }; + + argc = parse_options(argc, argv, prefix, options, + git_interpret_trailers_usage, 0); + + if (argc) { + int i; + for (i = 0; i < argc; i++) + process_trailers(argv[i], in_place, trim_empty, &trailers); + } else { + if (in_place) + die(_("no input file given for in-place editing")); + process_trailers(NULL, in_place, trim_empty, &trailers); + } + + string_list_clear(&trailers, 0); + + return 0; +} diff --git a/builtin/log.c b/builtin/log.c index 7d1f6f88a0..099f4f7be9 100644 --- a/builtin/log.c +++ b/builtin/log.c @@ -5,6 +5,7 @@ * 2006 Junio Hamano */ #include "cache.h" +#include "refs.h" #include "color.h" #include "commit.h" #include "diff.h" @@ -19,24 +20,37 @@ #include "remote.h" #include "string-list.h" #include "parse-options.h" +#include "line-log.h" #include "branch.h" +#include "streaming.h" +#include "version.h" +#include "mailmap.h" +#include "gpg-interface.h" /* Set a default date-time format for git log ("log.date" config variable) */ static const char *default_date_mode = NULL; static int default_abbrev_commit; static int default_show_root = 1; +static int default_follow; static int decoration_style; static int decoration_given; +static int use_mailmap_config; static const char *fmt_patch_subject_prefix = "PATCH"; static const char *fmt_pretty; static const char * const builtin_log_usage[] = { - "git log [<options>] [<since>..<until>] [[--] <path>...]\n" - " or: git show [options] <object>...", + N_("git log [<options>] [<revision-range>] [[--] <path>...]"), + N_("git show [<options>] <object>..."), NULL }; +struct line_opt_callback_data { + struct rev_info *rev; + const char *prefix; + struct string_list args; +}; + static int parse_decoration_style(const char *var, const char *value) { switch (git_config_maybe_bool(var, value)) { @@ -51,6 +65,8 @@ static int parse_decoration_style(const char *var, const char *value) return DECORATE_FULL_REFS; else if (!strcmp(value, "short")) return DECORATE_SHORT_REFS; + else if (!strcmp(value, "auto")) + return (isatty(1) || pager_in_use()) ? DECORATE_SHORT_REFS : 0; return -1; } @@ -64,54 +80,87 @@ static int decorate_callback(const struct option *opt, const char *arg, int unse decoration_style = DECORATE_SHORT_REFS; if (decoration_style < 0) - die("invalid --decorate option: %s", arg); + die(_("invalid --decorate option: %s"), arg); decoration_given = 1; return 0; } +static int log_line_range_callback(const struct option *option, const char *arg, int unset) +{ + struct line_opt_callback_data *data = option->value; + + if (!arg) + return -1; + + data->rev->line_level_traverse = 1; + string_list_append(&data->args, arg); + + return 0; +} + +static void init_log_defaults(void) +{ + init_grep_defaults(); + init_diff_ui_defaults(); +} + static void cmd_log_init_defaults(struct rev_info *rev) { if (fmt_pretty) get_commit_format(fmt_pretty, rev); + if (default_follow) + DIFF_OPT_SET(&rev->diffopt, DEFAULT_FOLLOW_RENAMES); rev->verbose_header = 1; DIFF_OPT_SET(&rev->diffopt, RECURSIVE); + rev->diffopt.stat_width = -1; /* use full terminal width */ + rev->diffopt.stat_graph_width = -1; /* respect statGraphWidth config */ rev->abbrev_commit = default_abbrev_commit; rev->show_root_diff = default_show_root; rev->subject_prefix = fmt_patch_subject_prefix; DIFF_OPT_SET(&rev->diffopt, ALLOW_TEXTCONV); if (default_date_mode) - rev->date_mode = parse_date_format(default_date_mode); + parse_date_format(default_date_mode, &rev->date_mode); + rev->diffopt.touched_flags = 0; } static void cmd_log_init_finish(int argc, const char **argv, const char *prefix, struct rev_info *rev, struct setup_revision_opt *opt) { struct userformat_want w; - int quiet = 0, source = 0; + int quiet = 0, source = 0, mailmap = 0; + static struct line_opt_callback_data line_cb = {NULL, NULL, STRING_LIST_INIT_DUP}; const struct option builtin_log_options[] = { - OPT_BOOLEAN(0, "quiet", &quiet, "suppress diff output"), - OPT_BOOLEAN(0, "source", &source, "show source"), - { OPTION_CALLBACK, 0, "decorate", NULL, NULL, "decorate options", + OPT__QUIET(&quiet, N_("suppress diff output")), + OPT_BOOL(0, "source", &source, N_("show source")), + OPT_BOOL(0, "use-mailmap", &mailmap, N_("Use mail map file")), + { OPTION_CALLBACK, 0, "decorate", NULL, NULL, N_("decorate options"), PARSE_OPT_OPTARG, decorate_callback}, + OPT_CALLBACK('L', NULL, &line_cb, "n,m:file", + N_("Process line range n,m in file, counting from 1"), + log_line_range_callback), OPT_END() }; + line_cb.rev = rev; + line_cb.prefix = prefix; + + mailmap = use_mailmap_config; argc = parse_options(argc, argv, prefix, builtin_log_options, builtin_log_usage, PARSE_OPT_KEEP_ARGV0 | PARSE_OPT_KEEP_UNKNOWN | PARSE_OPT_KEEP_DASHDASH); - argc = setup_revisions(argc, argv, rev, opt); if (quiet) rev->diffopt.output_format |= DIFF_FORMAT_NO_OUTPUT; + argc = setup_revisions(argc, argv, rev, opt); /* Any arguments at this point are not recognized */ if (argc > 1) - die("unrecognized argument: %s", argv[1]); + die(_("unrecognized argument: %s"), argv[1]); memset(&w, 0, sizeof(w)); userformat_find_requirements(NULL, &w); @@ -121,17 +170,18 @@ static void cmd_log_init_finish(int argc, const char **argv, const char *prefix, if (rev->show_notes) init_display_notes(&rev->notes_opt); - if (rev->diffopt.pickaxe || rev->diffopt.filter) + if (rev->diffopt.pickaxe || rev->diffopt.filter || + DIFF_OPT_TST(&rev->diffopt, FOLLOW_RENAMES)) rev->always_show_header = 0; - if (DIFF_OPT_TST(&rev->diffopt, FOLLOW_RENAMES)) { - rev->always_show_header = 0; - if (rev->diffopt.pathspec.nr != 1) - usage("git logs can only follow renames on one pathname at a time"); - } if (source) rev->show_source = 1; + if (mailmap) { + rev->mailmap = xcalloc(1, sizeof(struct string_list)); + read_mailmap(rev->mailmap, NULL); + } + if (rev->pretty_given && rev->commit_format == CMIT_FMT_RAW) { /* * "log --pretty=raw" is special; ignore UI oriented @@ -147,6 +197,10 @@ static void cmd_log_init_finish(int argc, const char **argv, const char *prefix, rev->show_decorations = 1; load_ref_decorations(decoration_style); } + + if (rev->line_level_traverse) + line_log_init(rev, line_cb.prefix, &line_cb.args); + setup_pager(); } @@ -192,7 +246,7 @@ static void log_show_early(struct rev_info *revs, struct commit_list *list) int i = revs->early_output; int show_header = 1; - sort_in_topological_order(&list, revs->lifo); + sort_in_topological_order(&list, revs->sort_order); while (list && i) { struct commit *commit = list->item; switch (simplify_commit(revs, commit)) { @@ -294,8 +348,7 @@ static int cmd_log_walk(struct rev_info *rev) * retain that state information if replacing rev->diffopt in this loop */ while ((commit = get_revision(rev)) != NULL) { - if (!log_tree_commit(rev, commit) && - rev->max_count >= 0) + if (!log_tree_commit(rev, commit) && rev->max_count >= 0) /* * We decremented max_count in get_revision, * but we didn't actually show the commit. @@ -303,8 +356,7 @@ static int cmd_log_walk(struct rev_info *rev) rev->max_count++; if (!rev->reflog_info) { /* we allow cycles in reflog ancestry */ - free(commit->buffer); - commit->buffer = NULL; + free_commit_buffer(commit); } free_commit_list(commit->parents); commit->parents = NULL; @@ -325,6 +377,8 @@ static int cmd_log_walk(struct rev_info *rev) static int git_log_config(const char *var, const char *value, void *cb) { + const char *slot_name; + if (!strcmp(var, "format.pretty")) return git_config_string(&fmt_pretty, var, value); if (!strcmp(var, "format.subjectprefix")) @@ -345,9 +399,21 @@ static int git_log_config(const char *var, const char *value, void *cb) default_show_root = git_config_bool(var, value); return 0; } - if (!prefixcmp(var, "color.decorate.")) - return parse_decorate_color_config(var, 15, value); + if (!strcmp(var, "log.follow")) { + default_follow = git_config_bool(var, value); + return 0; + } + if (skip_prefix(var, "color.decorate.", &slot_name)) + return parse_decorate_color_config(var, slot_name, value); + if (!strcmp(var, "log.mailmap")) { + use_mailmap_config = git_config_bool(var, value); + return 0; + } + if (grep_config(var, value, cb) < 0) + return -1; + if (git_gpg_config(var, value, cb) < 0) + return -1; return git_diff_ui_config(var, value, cb); } @@ -356,6 +422,7 @@ int cmd_whatchanged(int argc, const char **argv, const char *prefix) struct rev_info rev; struct setup_revision_opt opt; + init_log_defaults(); git_config(git_log_config, NULL); init_revisions(&rev, prefix); @@ -363,6 +430,7 @@ int cmd_whatchanged(int argc, const char **argv, const char *prefix) rev.simplify_history = 0; memset(&opt, 0, sizeof(opt)); opt.def = "HEAD"; + opt.revarg_opt = REVARG_COMMITTISH; cmd_log_init(argc, argv, prefix, &rev, &opt); if (!rev.diffopt.output_format) rev.diffopt.output_format = DIFF_FORMAT_RAW; @@ -381,8 +449,32 @@ static void show_tagger(char *buf, int len, struct rev_info *rev) strbuf_release(&out); } -static int show_object(const unsigned char *sha1, int show_tag_object, - struct rev_info *rev) +static int show_blob_object(const unsigned char *sha1, struct rev_info *rev, const char *obj_name) +{ + unsigned char sha1c[20]; + struct object_context obj_context; + char *buf; + unsigned long size; + + fflush(stdout); + if (!DIFF_OPT_TOUCHED(&rev->diffopt, ALLOW_TEXTCONV) || + !DIFF_OPT_TST(&rev->diffopt, ALLOW_TEXTCONV)) + return stream_blob_to_fd(1, sha1, NULL, 0); + + if (get_sha1_with_context(obj_name, 0, sha1c, &obj_context)) + die(_("Not a valid object name %s"), obj_name); + if (!obj_context.path[0] || + !textconv_object(obj_context.path, obj_context.mode, sha1c, 1, &buf, &size)) + return stream_blob_to_fd(1, sha1, NULL, 0); + + if (!buf) + die(_("git show %s: bad file"), obj_name); + + write_or_die(1, buf, size); + return 0; +} + +static int show_tag_object(const unsigned char *sha1, struct rev_info *rev) { unsigned long size; enum object_type type; @@ -392,16 +484,16 @@ static int show_object(const unsigned char *sha1, int show_tag_object, if (!buf) return error(_("Could not read object %s"), sha1_to_hex(sha1)); - if (show_tag_object) - while (offset < size && buf[offset] != '\n') { - int new_offset = offset + 1; - while (new_offset < size && buf[new_offset++] != '\n') - ; /* do nothing */ - if (!prefixcmp(buf + offset, "tagger ")) - show_tagger(buf + offset + 7, - new_offset - offset - 7, rev); - offset = new_offset; - } + assert(type == OBJ_TAG); + while (offset < size && buf[offset] != '\n') { + int new_offset = offset + 1; + while (new_offset < size && buf[new_offset++] != '\n') + ; /* do nothing */ + if (starts_with(buf + offset, "tagger ")) + show_tagger(buf + offset + 7, + new_offset - offset - 7, rev); + offset = new_offset; + } if (offset < size) fwrite(buf + offset, size - offset, 1, stdout); @@ -410,20 +502,21 @@ static int show_object(const unsigned char *sha1, int show_tag_object, } static int show_tree_object(const unsigned char *sha1, - const char *base, int baselen, + struct strbuf *base, const char *pathname, unsigned mode, int stage, void *context) { printf("%s%s\n", pathname, S_ISDIR(mode) ? "/" : ""); return 0; } -static void show_rev_tweak_rev(struct rev_info *rev, struct setup_revision_opt *opt) +static void show_setup_revisions_tweak(struct rev_info *rev, + struct setup_revision_opt *opt) { if (rev->ignore_merges) { /* There was no "-m" on the command line */ rev->ignore_merges = 0; if (!rev->first_parent_only && !rev->combine_merges) { - /* No "--first-parent", "-c", nor "--cc" */ + /* No "--first-parent", "-c", or "--cc" */ rev->combine_merges = 1; rev->dense_combined_merges = 1; } @@ -440,18 +533,24 @@ int cmd_show(int argc, const char **argv, const char *prefix) struct pathspec match_all; int i, count, ret = 0; + init_log_defaults(); git_config(git_log_config, NULL); - init_pathspec(&match_all, NULL); + memset(&match_all, 0, sizeof(match_all)); init_revisions(&rev, prefix); rev.diff = 1; rev.always_show_header = 1; - rev.no_walk = 1; + rev.no_walk = REVISION_WALK_NO_WALK_SORTED; + rev.diffopt.stat_width = -1; /* Scale to real terminal size */ + memset(&opt, 0, sizeof(opt)); opt.def = "HEAD"; - opt.tweak = show_rev_tweak_rev; + opt.tweak = show_setup_revisions_tweak; cmd_log_init(argc, argv, prefix, &rev, &opt); + if (!rev.no_walk) + return cmd_log_walk(&rev); + count = rev.pending.nr; objects = rev.pending.objects; for (i = 0; i < count && !ret; i++) { @@ -459,7 +558,7 @@ int cmd_show(int argc, const char **argv, const char *prefix) const char *name = objects[i].name; switch (o->type) { case OBJ_BLOB: - ret = show_object(o->sha1, 0, NULL); + ret = show_blob_object(o->oid.hash, &rev, name); break; case OBJ_TAG: { struct tag *t = (struct tag *)o; @@ -470,14 +569,14 @@ int cmd_show(int argc, const char **argv, const char *prefix) diff_get_color_opt(&rev.diffopt, DIFF_COMMIT), t->tag, diff_get_color_opt(&rev.diffopt, DIFF_RESET)); - ret = show_object(o->sha1, 1, &rev); + ret = show_tag_object(o->oid.hash, &rev); rev.shown_one = 1; if (ret) break; - o = parse_object(t->tagged->sha1); + o = parse_object(t->tagged->oid.hash); if (!o) ret = error(_("Could not read object %s"), - sha1_to_hex(t->tagged->sha1)); + oid_to_hex(&t->tagged->oid)); objects[i].item = o; i--; break; @@ -515,6 +614,7 @@ int cmd_log_reflog(int argc, const char **argv, const char *prefix) struct rev_info rev; struct setup_revision_opt opt; + init_log_defaults(); git_config(git_log_config, NULL); init_revisions(&rev, prefix); @@ -532,17 +632,36 @@ int cmd_log_reflog(int argc, const char **argv, const char *prefix) return cmd_log_walk(&rev); } +static void log_setup_revisions_tweak(struct rev_info *rev, + struct setup_revision_opt *opt) +{ + if (DIFF_OPT_TST(&rev->diffopt, DEFAULT_FOLLOW_RENAMES) && + rev->prune_data.nr == 1) + DIFF_OPT_SET(&rev->diffopt, FOLLOW_RENAMES); + + /* Turn --cc/-c into -p --cc/-c when -p was not given */ + if (!rev->diffopt.output_format && rev->combine_merges) + rev->diffopt.output_format = DIFF_FORMAT_PATCH; + + /* Turn -m on when --cc/-c was given */ + if (rev->combine_merges) + rev->ignore_merges = 0; +} + int cmd_log(int argc, const char **argv, const char *prefix) { struct rev_info rev; struct setup_revision_opt opt; + init_log_defaults(); git_config(git_log_config, NULL); init_revisions(&rev, prefix); rev.always_show_header = 1; memset(&opt, 0, sizeof(opt)); opt.def = "HEAD"; + opt.revarg_opt = REVARG_COMMITTISH; + opt.tweak = log_setup_revisions_tweak; cmd_log_init(argc, argv, prefix, &rev, &opt); return cmd_log_walk(&rev); } @@ -583,7 +702,18 @@ static void add_header(const char *value) #define THREAD_DEEP 2 static int thread; static int do_signoff; +static int base_auto; static const char *signature = git_version_string; +static const char *signature_file; +static int config_cover_letter; +static const char *config_output_directory; + +enum { + COVER_UNSET, + COVER_OFF, + COVER_ON, + COVER_AUTO +}; static int git_format_config(const char *var, const char *value, void *cb) { @@ -608,7 +738,7 @@ static int git_format_config(const char *var, const char *value, void *cb) return 0; } if (!strcmp(var, "diff.color") || !strcmp(var, "color.diff") || - !strcmp(var, "color.ui")) { + !strcmp(var, "color.ui") || !strcmp(var, "diff.submodule")) { return 0; } if (!strcmp(var, "format.numbered")) { @@ -645,6 +775,22 @@ static int git_format_config(const char *var, const char *value, void *cb) } if (!strcmp(var, "format.signature")) return git_config_string(&signature, var, value); + if (!strcmp(var, "format.signaturefile")) + return git_config_pathname(&signature_file, var, value); + if (!strcmp(var, "format.coverletter")) { + if (value && !strcasecmp(value, "auto")) { + config_cover_letter = COVER_AUTO; + return 0; + } + config_cover_letter = git_config_bool(var, value) ? COVER_ON : COVER_OFF; + return 0; + } + if (!strcmp(var, "format.outputdirectory")) + return git_config_string(&config_output_directory, var, value); + if (!strcmp(var, "format.useautobase")) { + base_auto = git_config_bool(var, value); + return 0; + } return git_log_config(var, value, cb); } @@ -653,21 +799,26 @@ static FILE *realstdout = NULL; static const char *output_directory = NULL; static int outdir_offset; -static int reopen_stdout(struct commit *commit, struct rev_info *rev, int quiet) +static int reopen_stdout(struct commit *commit, const char *subject, + struct rev_info *rev, int quiet) { struct strbuf filename = STRBUF_INIT; - int suffix_len = strlen(fmt_patch_suffix) + 1; + int suffix_len = strlen(rev->patch_suffix) + 1; if (output_directory) { strbuf_addstr(&filename, output_directory); if (filename.len >= PATH_MAX - FORMAT_PATCH_NAME_MAX - suffix_len) return error(_("name of output directory is too long")); - if (filename.buf[filename.len - 1] != '/') - strbuf_addch(&filename, '/'); + strbuf_complete(&filename, '/'); } - get_patch_filename(commit, rev->nr, fmt_patch_suffix, &filename); + if (rev->numbered_files) + strbuf_addf(&filename, "%d", rev->nr); + else if (commit) + fmt_output_commit(&filename, commit, rev); + else + fmt_output_subject(&filename, subject, rev); if (!quiet) fprintf(realstdout, "%s\n", filename.buf + outdir_offset); @@ -679,10 +830,10 @@ static int reopen_stdout(struct commit *commit, struct rev_info *rev, int quiet) return 0; } -static void get_patch_ids(struct rev_info *rev, struct patch_ids *ids, const char *prefix) +static void get_patch_ids(struct rev_info *rev, struct patch_ids *ids) { struct rev_info check_rev; - struct commit *commit; + struct commit *commit, *c1, *c2; struct object *o1, *o2; unsigned flags1, flags2; @@ -690,9 +841,11 @@ static void get_patch_ids(struct rev_info *rev, struct patch_ids *ids, const cha die(_("Need exactly one range.")); o1 = rev->pending.objects[0].item; - flags1 = o1->flags; o2 = rev->pending.objects[1].item; + flags1 = o1->flags; flags2 = o2->flags; + c1 = lookup_commit_reference(o1->oid.hash); + c2 = lookup_commit_reference(o2->oid.hash); if ((flags1 & UNINTERESTING) == (flags2 & UNINTERESTING)) die(_("Not a range.")); @@ -700,7 +853,8 @@ static void get_patch_ids(struct rev_info *rev, struct patch_ids *ids, const cha init_patch_ids(ids); /* given a range a..b get all patch ids for b..a */ - init_revisions(&check_rev, prefix); + init_revisions(&check_rev, rev->prefix); + check_rev.max_parents = 1; o1->flags ^= UNINTERESTING; o2->flags ^= UNINTERESTING; add_pending_object(&check_rev, o1, "o1"); @@ -709,40 +863,34 @@ static void get_patch_ids(struct rev_info *rev, struct patch_ids *ids, const cha die(_("revision walk setup failed")); while ((commit = get_revision(&check_rev)) != NULL) { - /* ignore merges */ - if (commit->parents && commit->parents->next) - continue; - add_commit_patch_id(commit, ids); } /* reset for next revision walk */ - clear_commit_marks((struct commit *)o1, - SEEN | UNINTERESTING | SHOWN | ADDED); - clear_commit_marks((struct commit *)o2, - SEEN | UNINTERESTING | SHOWN | ADDED); + clear_commit_marks(c1, SEEN | UNINTERESTING | SHOWN | ADDED); + clear_commit_marks(c2, SEEN | UNINTERESTING | SHOWN | ADDED); o1->flags = flags1; o2->flags = flags2; } static void gen_message_id(struct rev_info *info, char *base) { - const char *committer = git_committer_info(IDENT_WARN_ON_NO_NAME); - const char *email_start = strrchr(committer, '<'); - const char *email_end = strrchr(committer, '>'); struct strbuf buf = STRBUF_INIT; - if (!email_start || !email_end || email_start > email_end - 1) - die(_("Could not extract email from committer identity.")); - strbuf_addf(&buf, "%s.%lu.git.%.*s", base, + strbuf_addf(&buf, "%s.%lu.git.%s", base, (unsigned long) time(NULL), - (int)(email_end - email_start - 1), email_start + 1); + git_committer_info(IDENT_NO_NAME|IDENT_NO_DATE|IDENT_STRICT)); info->message_id = strbuf_detach(&buf, NULL); } static void print_signature(void) { - if (signature && *signature) - printf("-- \n%s\n\n", signature); + if (!signature || !*signature) + return; + + printf("-- \n%s", signature); + if (signature[strlen(signature)-1] != '\n') + putchar('\n'); + putchar('\n'); } static void add_branch_description(struct strbuf *buf, const char *branch_name) @@ -753,15 +901,43 @@ static void add_branch_description(struct strbuf *buf, const char *branch_name) read_branch_desc(&desc, branch_name); if (desc.len) { strbuf_addch(buf, '\n'); - strbuf_add(buf, desc.buf, desc.len); + strbuf_addbuf(buf, &desc); strbuf_addch(buf, '\n'); } + strbuf_release(&desc); +} + +static char *find_branch_name(struct rev_info *rev) +{ + int i, positive = -1; + struct object_id branch_oid; + const struct object_id *tip_oid; + const char *ref, *v; + char *full_ref, *branch = NULL; + + for (i = 0; i < rev->cmdline.nr; i++) { + if (rev->cmdline.rev[i].flags & UNINTERESTING) + continue; + if (positive < 0) + positive = i; + else + return NULL; + } + if (positive < 0) + return NULL; + ref = rev->cmdline.rev[positive].name; + tip_oid = &rev->cmdline.rev[positive].item->oid; + if (dwim_ref(ref, strlen(ref), branch_oid.hash, &full_ref) && + skip_prefix(full_ref, "refs/heads/", &v) && + !oidcmp(tip_oid, &branch_oid)) + branch = xstrdup(v); + free(full_ref); + return branch; } static void make_cover_letter(struct rev_info *rev, int use_stdout, - int numbered, int numbered_files, struct commit *origin, - int nr, struct commit **list, struct commit *head, + int nr, struct commit **list, const char *branch_name, int quiet) { @@ -774,49 +950,34 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout, const char *encoding = "UTF-8"; struct diff_options opts; int need_8bit_cte = 0; - struct commit *commit = NULL; struct pretty_print_context pp = {0}; + struct commit *head = list[0]; if (rev->commit_format != CMIT_FMT_EMAIL) die(_("Cover letter needs email format")); committer = git_committer_info(0); - if (!numbered_files) { - /* - * We fake a commit for the cover letter so we get the filename - * desired. - */ - commit = xcalloc(1, sizeof(*commit)); - commit->buffer = xmalloc(400); - snprintf(commit->buffer, 400, - "tree 0000000000000000000000000000000000000000\n" - "parent %s\n" - "author %s\n" - "committer %s\n\n" - "cover letter\n", - sha1_to_hex(head->object.sha1), committer, committer); - } - - if (!use_stdout && reopen_stdout(commit, rev, quiet)) + if (!use_stdout && + reopen_stdout(NULL, rev->numbered_files ? NULL : "cover-letter", rev, quiet)) return; - if (commit) { - - free(commit->buffer); - free(commit); - } - log_write_email_headers(rev, head, &pp.subject, &pp.after_subject, &need_8bit_cte); - for (i = 0; !need_8bit_cte && i < nr; i++) - if (has_non_ascii(list[i]->buffer)) + for (i = 0; !need_8bit_cte && i < nr; i++) { + const char *buf = get_commit_buffer(list[i], NULL); + if (has_non_ascii(buf)) need_8bit_cte = 1; + unuse_commit_buffer(list[i], buf); + } + + if (!branch_name) + branch_name = find_branch_name(rev); msg = body; pp.fmt = CMIT_FMT_EMAIL; - pp.date_mode = DATE_RFC2822; + pp.date_mode.type = DATE_RFC2822; pp_user_info(&pp, NULL, &sb, committer, encoding); pp_title_line(&pp, &msg, &sb, encoding, need_8bit_cte); pp_remainder(&pp, &msg, &sb, 0); @@ -846,8 +1007,8 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout, diff_setup_done(&opts); - diff_tree_sha1(origin->tree->object.sha1, - head->tree->object.sha1, + diff_tree_sha1(origin->tree->object.oid.hash, + head->tree->object.oid.hash, "", &opts); diffcore_std(&opts); diff_flush(&opts); @@ -900,7 +1061,7 @@ static const char *set_outdir(const char *prefix, const char *output_directory) } static const char * const builtin_format_patch_usage[] = { - "git format-patch [options] [<since> | <revision range>]", + N_("git format-patch [<options>] [<since> | <revision-range>]"), NULL }; @@ -1020,33 +1181,168 @@ static int cc_callback(const struct option *opt, const char *arg, int unset) return 0; } -static char *find_branch_name(struct rev_info *rev) +static int from_callback(const struct option *opt, const char *arg, int unset) { - int i, positive = -1; - unsigned char branch_sha1[20]; - struct strbuf buf = STRBUF_INIT; - const char *branch; + char **from = opt->value; - for (i = 0; i < rev->cmdline.nr; i++) { - if (rev->cmdline.rev[i].flags & UNINTERESTING) + free(*from); + + if (unset) + *from = NULL; + else if (arg) + *from = xstrdup(arg); + else + *from = xstrdup(git_committer_info(IDENT_NO_DATE)); + return 0; +} + +struct base_tree_info { + struct object_id base_commit; + int nr_patch_id, alloc_patch_id; + struct object_id *patch_id; +}; + +static struct commit *get_base_commit(const char *base_commit, + struct commit **list, + int total) +{ + struct commit *base = NULL; + struct commit **rev; + int i = 0, rev_nr = 0; + + if (base_commit && strcmp(base_commit, "auto")) { + base = lookup_commit_reference_by_name(base_commit); + if (!base) + die(_("Unknown commit %s"), base_commit); + } else if ((base_commit && !strcmp(base_commit, "auto")) || base_auto) { + struct branch *curr_branch = branch_get(NULL); + const char *upstream = branch_get_upstream(curr_branch, NULL); + if (upstream) { + struct commit_list *base_list; + struct commit *commit; + unsigned char sha1[20]; + + if (get_sha1(upstream, sha1)) + die(_("Failed to resolve '%s' as a valid ref."), upstream); + commit = lookup_commit_or_die(sha1, "upstream base"); + base_list = get_merge_bases_many(commit, total, list); + /* There should be one and only one merge base. */ + if (!base_list || base_list->next) + die(_("Could not find exact merge base.")); + base = base_list->item; + free_commit_list(base_list); + } else { + die(_("Failed to get upstream, if you want to record base commit automatically,\n" + "please use git branch --set-upstream-to to track a remote branch.\n" + "Or you could specify base commit by --base=<base-commit-id> manually.")); + } + } + + ALLOC_ARRAY(rev, total); + for (i = 0; i < total; i++) + rev[i] = list[i]; + + rev_nr = total; + /* + * Get merge base through pair-wise computations + * and store it in rev[0]. + */ + while (rev_nr > 1) { + for (i = 0; i < rev_nr / 2; i++) { + struct commit_list *merge_base; + merge_base = get_merge_bases(rev[2 * i], rev[2 * i + 1]); + if (!merge_base || merge_base->next) + die(_("Failed to find exact merge base")); + + rev[i] = merge_base->item; + } + + if (rev_nr % 2) + rev[i] = rev[2 * i]; + rev_nr = (rev_nr + 1) / 2; + } + + if (!in_merge_bases(base, rev[0])) + die(_("base commit should be the ancestor of revision list")); + + for (i = 0; i < total; i++) { + if (base == list[i]) + die(_("base commit shouldn't be in revision list")); + } + + free(rev); + return base; +} + +static void prepare_bases(struct base_tree_info *bases, + struct commit *base, + struct commit **list, + int total) +{ + struct commit *commit; + struct rev_info revs; + struct diff_options diffopt; + int i; + + if (!base) + return; + + diff_setup(&diffopt); + DIFF_OPT_SET(&diffopt, RECURSIVE); + diff_setup_done(&diffopt); + + oidcpy(&bases->base_commit, &base->object.oid); + + init_revisions(&revs, NULL); + revs.max_parents = 1; + revs.topo_order = 1; + for (i = 0; i < total; i++) { + list[i]->object.flags &= ~UNINTERESTING; + add_pending_object(&revs, &list[i]->object, "rev_list"); + list[i]->util = (void *)1; + } + base->object.flags |= UNINTERESTING; + add_pending_object(&revs, &base->object, "base"); + + if (prepare_revision_walk(&revs)) + die(_("revision walk setup failed")); + /* + * Traverse the commits list, get prerequisite patch ids + * and stuff them in bases structure. + */ + while ((commit = get_revision(&revs)) != NULL) { + unsigned char sha1[20]; + struct object_id *patch_id; + if (commit->util) continue; - if (positive < 0) - positive = i; - else - return NULL; + if (commit_patch_id(commit, &diffopt, sha1)) + die(_("cannot get patch id")); + ALLOC_GROW(bases->patch_id, bases->nr_patch_id + 1, bases->alloc_patch_id); + patch_id = bases->patch_id + bases->nr_patch_id; + hashcpy(patch_id->hash, sha1); + bases->nr_patch_id++; } - if (positive < 0) - return NULL; - strbuf_addf(&buf, "refs/heads/%s", rev->cmdline.rev[positive].name); - branch = resolve_ref_unsafe(buf.buf, branch_sha1, 1, NULL); - if (!branch || - prefixcmp(branch, "refs/heads/") || - hashcmp(rev->cmdline.rev[positive].item->sha1, branch_sha1)) - branch = NULL; - strbuf_release(&buf); - if (branch) - return xstrdup(rev->cmdline.rev[positive].name); - return NULL; +} + +static void print_bases(struct base_tree_info *bases) +{ + int i; + + /* Only do this once, either for the cover or for the first one */ + if (is_null_oid(&bases->base_commit)) + return; + + /* Show the base commit */ + printf("base-commit: %s\n", oid_to_hex(&bases->base_commit)); + + /* Show the prerequisite patches */ + for (i = bases->nr_patch_id - 1; i >= 0; i--) + printf("prerequisite-patch-id: %s\n", oid_to_hex(&bases->patch_id[i])); + + free(bases->patch_id); + bases->nr_patch_id = 0; + bases->alloc_patch_id = 0; + oidclr(&bases->base_commit); } int cmd_format_patch(int argc, const char **argv, const char *prefix) @@ -1058,85 +1354,102 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) int nr = 0, total, i; int use_stdout = 0; int start_number = -1; - int numbered_files = 0; /* _just_ numbers */ + int just_numbers = 0; int ignore_if_in_upstream = 0; - int cover_letter = 0; + int cover_letter = -1; int boundary_count = 0; int no_binary_diff = 0; - struct commit *origin = NULL, *head = NULL; + int zero_commit = 0; + struct commit *origin = NULL; const char *in_reply_to = NULL; struct patch_ids ids; - char *add_signoff = NULL; struct strbuf buf = STRBUF_INIT; int use_patch_format = 0; int quiet = 0; + int reroll_count = -1; char *branch_name = NULL; + char *from = NULL; + char *base_commit = NULL; + struct base_tree_info bases; + const struct option builtin_format_patch_options[] = { { OPTION_CALLBACK, 'n', "numbered", &numbered, NULL, - "use [PATCH n/m] even with a single patch", + N_("use [PATCH n/m] even with a single patch"), PARSE_OPT_NOARG, numbered_callback }, { OPTION_CALLBACK, 'N', "no-numbered", &numbered, NULL, - "use [PATCH] even with multiple patches", + N_("use [PATCH] even with multiple patches"), PARSE_OPT_NOARG, no_numbered_callback }, - OPT_BOOLEAN('s', "signoff", &do_signoff, "add Signed-off-by:"), - OPT_BOOLEAN(0, "stdout", &use_stdout, - "print patches to standard out"), - OPT_BOOLEAN(0, "cover-letter", &cover_letter, - "generate a cover letter"), - OPT_BOOLEAN(0, "numbered-files", &numbered_files, - "use simple number sequence for output file names"), - OPT_STRING(0, "suffix", &fmt_patch_suffix, "sfx", - "use <sfx> instead of '.patch'"), + OPT_BOOL('s', "signoff", &do_signoff, N_("add Signed-off-by:")), + OPT_BOOL(0, "stdout", &use_stdout, + N_("print patches to standard out")), + OPT_BOOL(0, "cover-letter", &cover_letter, + N_("generate a cover letter")), + OPT_BOOL(0, "numbered-files", &just_numbers, + N_("use simple number sequence for output file names")), + OPT_STRING(0, "suffix", &fmt_patch_suffix, N_("sfx"), + N_("use <sfx> instead of '.patch'")), OPT_INTEGER(0, "start-number", &start_number, - "start numbering patches at <n> instead of 1"), - { OPTION_CALLBACK, 0, "subject-prefix", &rev, "prefix", - "Use [<prefix>] instead of [PATCH]", + N_("start numbering patches at <n> instead of 1")), + OPT_INTEGER('v', "reroll-count", &reroll_count, + N_("mark the series as Nth re-roll")), + { OPTION_CALLBACK, 0, "subject-prefix", &rev, N_("prefix"), + N_("Use [<prefix>] instead of [PATCH]"), PARSE_OPT_NONEG, subject_prefix_callback }, { OPTION_CALLBACK, 'o', "output-directory", &output_directory, - "dir", "store resulting files in <dir>", + N_("dir"), N_("store resulting files in <dir>"), PARSE_OPT_NONEG, output_directory_callback }, { OPTION_CALLBACK, 'k', "keep-subject", &rev, NULL, - "don't strip/add [PATCH]", + N_("don't strip/add [PATCH]"), PARSE_OPT_NOARG | PARSE_OPT_NONEG, keep_callback }, - OPT_BOOLEAN(0, "no-binary", &no_binary_diff, - "don't output binary diffs"), - OPT_BOOLEAN(0, "ignore-if-in-upstream", &ignore_if_in_upstream, - "don't include a patch matching a commit upstream"), - { OPTION_BOOLEAN, 'p', "no-stat", &use_patch_format, NULL, - "show patch format instead of default (patch + stat)", - PARSE_OPT_NONEG | PARSE_OPT_NOARG }, - OPT_GROUP("Messaging"), - { OPTION_CALLBACK, 0, "add-header", NULL, "header", - "add email header", 0, header_callback }, - { OPTION_CALLBACK, 0, "to", NULL, "email", "add To: header", + OPT_BOOL(0, "no-binary", &no_binary_diff, + N_("don't output binary diffs")), + OPT_BOOL(0, "zero-commit", &zero_commit, + N_("output all-zero hash in From header")), + OPT_BOOL(0, "ignore-if-in-upstream", &ignore_if_in_upstream, + N_("don't include a patch matching a commit upstream")), + { OPTION_SET_INT, 'p', "no-stat", &use_patch_format, NULL, + N_("show patch format instead of default (patch + stat)"), + PARSE_OPT_NONEG | PARSE_OPT_NOARG, NULL, 1}, + OPT_GROUP(N_("Messaging")), + { OPTION_CALLBACK, 0, "add-header", NULL, N_("header"), + N_("add email header"), 0, header_callback }, + { OPTION_CALLBACK, 0, "to", NULL, N_("email"), N_("add To: header"), 0, to_callback }, - { OPTION_CALLBACK, 0, "cc", NULL, "email", "add Cc: header", + { OPTION_CALLBACK, 0, "cc", NULL, N_("email"), N_("add Cc: header"), 0, cc_callback }, - OPT_STRING(0, "in-reply-to", &in_reply_to, "message-id", - "make first mail a reply to <message-id>"), - { OPTION_CALLBACK, 0, "attach", &rev, "boundary", - "attach the patch", PARSE_OPT_OPTARG, + { OPTION_CALLBACK, 0, "from", &from, N_("ident"), + N_("set From address to <ident> (or committer ident if absent)"), + PARSE_OPT_OPTARG, from_callback }, + OPT_STRING(0, "in-reply-to", &in_reply_to, N_("message-id"), + N_("make first mail a reply to <message-id>")), + { OPTION_CALLBACK, 0, "attach", &rev, N_("boundary"), + N_("attach the patch"), PARSE_OPT_OPTARG, attach_callback }, - { OPTION_CALLBACK, 0, "inline", &rev, "boundary", - "inline the patch", + { OPTION_CALLBACK, 0, "inline", &rev, N_("boundary"), + N_("inline the patch"), PARSE_OPT_OPTARG | PARSE_OPT_NONEG, inline_callback }, - { OPTION_CALLBACK, 0, "thread", &thread, "style", - "enable message threading, styles: shallow, deep", + { OPTION_CALLBACK, 0, "thread", &thread, N_("style"), + N_("enable message threading, styles: shallow, deep"), PARSE_OPT_OPTARG, thread_callback }, - OPT_STRING(0, "signature", &signature, "signature", - "add a signature"), - OPT_BOOLEAN(0, "quiet", &quiet, - "don't print the patch filenames"), + OPT_STRING(0, "signature", &signature, N_("signature"), + N_("add a signature")), + OPT_STRING(0, "base", &base_commit, N_("base-commit"), + N_("add prerequisite tree info to the patch series")), + OPT_FILENAME(0, "signature-file", &signature_file, + N_("add a signature from a file")), + OPT__QUIET(&quiet, N_("don't print the patch filenames")), OPT_END() }; extra_hdr.strdup_strings = 1; extra_to.strdup_strings = 1; extra_cc.strdup_strings = 1; + init_log_defaults(); git_config(git_format_config, NULL); init_revisions(&rev, prefix); rev.commit_format = CMIT_FMT_EMAIL; + rev.expand_tabs_in_log_default = 0; rev.verbose_header = 1; rev.diff = 1; rev.max_parents = 1; @@ -1144,6 +1457,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) rev.subject_prefix = fmt_patch_subject_prefix; memset(&s_r_opt, 0, sizeof(s_r_opt)); s_r_opt.def = "HEAD"; + s_r_opt.revarg_opt = REVARG_COMMITTISH; if (default_attach) { rev.mime_boundary = default_attach; @@ -1160,14 +1474,12 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) PARSE_OPT_KEEP_ARGV0 | PARSE_OPT_KEEP_UNKNOWN | PARSE_OPT_KEEP_DASHDASH); - if (do_signoff) { - const char *committer; - const char *endpos; - committer = git_committer_info(IDENT_ERROR_ON_NO_NAME); - endpos = strchr(committer, '>'); - if (!endpos) - die(_("bogus committer info %s"), committer); - add_signoff = xmemdupz(committer, endpos - committer + 1); + if (0 < reroll_count) { + struct strbuf sprefix = STRBUF_INIT; + strbuf_addf(&sprefix, "%s v%d", + rev.subject_prefix, reroll_count); + rev.reroll_count = reroll_count; + rev.subject_prefix = strbuf_detach(&sprefix, NULL); } for (i = 0; i < extra_hdr.nr; i++) { @@ -1199,6 +1511,11 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) rev.extra_headers = strbuf_detach(&buf, NULL); + if (from) { + if (split_ident_line(&rev.from_ident, from, strlen(from))) + die(_("invalid ident line: %s"), from); + } + if (start_number < 0) start_number = 1; @@ -1235,12 +1552,17 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) /* Always generate a patch */ rev.diffopt.output_format |= DIFF_FORMAT_PATCH; + rev.zero_commit = zero_commit; + if (!DIFF_OPT_TST(&rev.diffopt, TEXT) && !no_binary_diff) DIFF_OPT_SET(&rev.diffopt, BINARY); if (rev.show_notes) init_display_notes(&rev.notes_opt); + if (!output_directory && !use_stdout) + output_directory = config_output_directory; + if (!use_stdout) output_directory = set_outdir(prefix, output_directory); else @@ -1255,28 +1577,37 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) } if (rev.pending.nr == 1) { + int check_head = 0; + if (rev.max_count < 0 && !rev.show_root_diff) { /* * This is traditional behaviour of "git format-patch * origin" that prepares what the origin side still * does not have. */ - unsigned char sha1[20]; - const char *ref; - rev.pending.objects[0].item->flags |= UNINTERESTING; add_head_to_pending(&rev); - ref = resolve_ref_unsafe("HEAD", sha1, 1, NULL); - if (ref && !prefixcmp(ref, "refs/heads/")) - branch_name = xstrdup(ref + strlen("refs/heads/")); - else - branch_name = xstrdup(""); /* no branch */ + check_head = 1; } /* * Otherwise, it is "format-patch -22 HEAD", and/or * "format-patch --root HEAD". The user wants * get_revision() to do the usual traversal. */ + + if (!strcmp(rev.pending.objects[0].name, "HEAD")) + check_head = 1; + + if (check_head) { + unsigned char sha1[20]; + const char *ref, *v; + ref = resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, + sha1, NULL); + if (ref && skip_prefix(ref, "refs/heads/", &v)) + branch_name = xstrdup(v); + else + branch_name = xstrdup(""); /* no branch */ + } } /* @@ -1285,37 +1616,14 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) */ rev.show_root_diff = 1; - if (cover_letter) { - /* - * NEEDSWORK:randomly pick one positive commit to show - * diffstat; this is often the tip and the command - * happens to do the right thing in most cases, but a - * complex command like "--cover-letter a b c ^bottom" - * picks "c" and shows diffstat between bottom..c - * which may not match what the series represents at - * all and totally broken. - */ - int i; - for (i = 0; i < rev.pending.nr; i++) { - struct object *o = rev.pending.objects[i].item; - if (!(o->flags & UNINTERESTING)) - head = (struct commit *)o; - } - /* There is nothing to show; it is not an error, though. */ - if (!head) - return 0; - if (!branch_name) - branch_name = find_branch_name(&rev); - } - if (ignore_if_in_upstream) { /* Don't say anything if head and upstream are the same. */ if (rev.pending.nr == 2) { struct object_array_entry *o = rev.pending.objects; - if (hashcmp(o[0].item->sha1, o[1].item->sha1) == 0) + if (oidcmp(&o[0].item->oid, &o[1].item->oid) == 0) return 0; } - get_patch_ids(&rev, &ids, prefix); + get_patch_ids(&rev, &ids); } if (!use_stdout) @@ -1331,36 +1639,65 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) continue; } - if (ignore_if_in_upstream && - has_commit_patch_id(commit, &ids)) + if (ignore_if_in_upstream && has_commit_patch_id(commit, &ids)) continue; nr++; - list = xrealloc(list, nr * sizeof(list[0])); + REALLOC_ARRAY(list, nr); list[nr - 1] = commit; } + if (nr == 0) + /* nothing to do */ + return 0; total = nr; if (!keep_subject && auto_number && total > 1) numbered = 1; if (numbered) rev.total = total + start_number - 1; + if (cover_letter == -1) { + if (config_cover_letter == COVER_AUTO) + cover_letter = (total > 1); + else + cover_letter = (config_cover_letter == COVER_ON); + } + + if (!signature) { + ; /* --no-signature inhibits all signatures */ + } else if (signature && signature != git_version_string) { + ; /* non-default signature already set */ + } else if (signature_file) { + struct strbuf buf = STRBUF_INIT; + + if (strbuf_read_file(&buf, signature_file, 128) < 0) + die_errno(_("unable to read signature file '%s'"), signature_file); + signature = strbuf_detach(&buf, NULL); + } + + memset(&bases, 0, sizeof(bases)); + if (base_commit || base_auto) { + struct commit *base = get_base_commit(base_commit, list, nr); + reset_revision_walk(); + prepare_bases(&bases, base, list, nr); + } + if (in_reply_to || thread || cover_letter) rev.ref_message_ids = xcalloc(1, sizeof(struct string_list)); if (in_reply_to) { const char *msgid = clean_message_id(in_reply_to); string_list_append(rev.ref_message_ids, msgid); } - rev.numbered_files = numbered_files; + rev.numbered_files = just_numbers; rev.patch_suffix = fmt_patch_suffix; if (cover_letter) { if (thread) gen_message_id(&rev, "cover"); - make_cover_letter(&rev, use_stdout, numbered, numbered_files, - origin, nr, list, head, branch_name, quiet); + make_cover_letter(&rev, use_stdout, + origin, nr, list, branch_name, quiet); + print_bases(&bases); total++; start_number--; } - rev.add_signoff = add_signoff; + rev.add_signoff = do_signoff; while (0 <= --nr) { int shown; commit = list[nr]; @@ -1398,15 +1735,14 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) string_list_append(rev.ref_message_ids, rev.message_id); } - gen_message_id(&rev, sha1_to_hex(commit->object.sha1)); + gen_message_id(&rev, oid_to_hex(&commit->object.oid)); } - if (!use_stdout && reopen_stdout(numbered_files ? NULL : commit, - &rev, quiet)) + if (!use_stdout && + reopen_stdout(rev.numbered_files ? NULL : commit, NULL, &rev, quiet)) die(_("Failed to create output files")); shown = log_tree_commit(&rev, commit); - free(commit->buffer); - commit->buffer = NULL; + free_commit_buffer(commit); /* We put one extra blank line between formatted * patches and this flag is used by log-tree code @@ -1423,6 +1759,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) rev.mime_boundary); else print_signature(); + print_bases(&bases); } if (!use_stdout) fclose(stdout); @@ -1452,7 +1789,7 @@ static int add_pending_commit(const char *arg, struct rev_info *revs, int flags) } static const char * const cherry_usage[] = { - "git cherry [-v] [<upstream> [<head> [<limit>]]]", + N_("git cherry [-v] [<upstream> [<head> [<limit>]]]"), NULL }; @@ -1461,12 +1798,12 @@ static void print_commit(char sign, struct commit *commit, int verbose, { if (!verbose) { printf("%c %s\n", sign, - find_unique_abbrev(commit->object.sha1, abbrev)); + find_unique_abbrev(commit->object.oid.hash, abbrev)); } else { struct strbuf buf = STRBUF_INIT; pp_commit_easy(CMIT_FMT_ONELINE, commit, &buf); printf("%c %s %s\n", sign, - find_unique_abbrev(commit->object.sha1, abbrev), + find_unique_abbrev(commit->object.oid.hash, abbrev), buf.buf); strbuf_release(&buf); } @@ -1486,7 +1823,7 @@ int cmd_cherry(int argc, const char **argv, const char *prefix) struct option options[] = { OPT__ABBREV(&abbrev), - OPT__VERBOSE(&verbose, "be verbose"), + OPT__VERBOSE(&verbose, N_("be verbose")), OPT_END() }; @@ -1504,23 +1841,17 @@ int cmd_cherry(int argc, const char **argv, const char *prefix) break; default: current_branch = branch_get(NULL); - if (!current_branch || !current_branch->merge - || !current_branch->merge[0] - || !current_branch->merge[0]->dst) { + upstream = branch_get_upstream(current_branch, NULL); + if (!upstream) { fprintf(stderr, _("Could not find a tracked" " remote branch, please" " specify <upstream> manually.\n")); usage_with_options(cherry_usage, options); } - - upstream = current_branch->merge[0]->dst; } init_revisions(&revs, prefix); - revs.diff = 1; - revs.combine_merges = 0; - revs.ignore_merges = 1; - DIFF_OPT_SET(&revs.diffopt, RECURSIVE); + revs.max_parents = 1; if (add_pending_commit(head, &revs, 0)) die(_("Unknown commit %s"), head); @@ -1530,11 +1861,11 @@ int cmd_cherry(int argc, const char **argv, const char *prefix) /* Don't say anything if head and upstream are the same. */ if (revs.pending.nr == 2) { struct object_array_entry *o = revs.pending.objects; - if (hashcmp(o[0].item->sha1, o[1].item->sha1) == 0) + if (oidcmp(&o[0].item->oid, &o[1].item->oid) == 0) return 0; } - get_patch_ids(&revs, &ids, prefix); + get_patch_ids(&revs, &ids); if (limit && add_pending_commit(limit, &revs, UNINTERESTING)) die(_("Unknown commit %s"), limit); @@ -1543,10 +1874,6 @@ int cmd_cherry(int argc, const char **argv, const char *prefix) if (prepare_revision_walk(&revs)) die(_("revision walk setup failed")); while ((commit = get_revision(&revs)) != NULL) { - /* ignore merges */ - if (commit->parents && commit->parents->next) - continue; - commit_list_insert(commit, &list); } diff --git a/builtin/ls-files.c b/builtin/ls-files.c index 7cff175745..f02e3d23bb 100644 --- a/builtin/ls-files.c +++ b/builtin/ls-files.c @@ -13,6 +13,7 @@ #include "parse-options.h" #include "resolve-undo.h" #include "string-list.h" +#include "pathspec.h" static int abbrev; static int show_deleted; @@ -26,15 +27,17 @@ static int show_killed; static int show_valid_bit; static int line_terminator = '\n'; static int debug_mode; +static int show_eol; static const char *prefix; static int max_prefix_len; static int prefix_len; -static const char **pathspec; +static struct pathspec pathspec; static int error_unmatch; static char *ps_matched; static const char *with_tree; static int exc_given; +static int exclude_args; static const char *tag_cached = ""; static const char *tag_unmerged = ""; @@ -45,10 +48,31 @@ static const char *tag_modified = ""; static const char *tag_skip_worktree = ""; static const char *tag_resolve_undo = ""; -static void write_name(const char* name, size_t len) +static void write_eolinfo(const struct cache_entry *ce, const char *path) { - write_name_quoted_relative(name, len, prefix, prefix_len, stdout, - line_terminator); + if (!show_eol) + return; + else { + struct stat st; + const char *i_txt = ""; + const char *w_txt = ""; + const char *a_txt = get_convert_attr_ascii(path); + if (ce && S_ISREG(ce->ce_mode)) + i_txt = get_cached_convert_stats_ascii(ce->name); + if (!lstat(path, &st) && S_ISREG(st.st_mode)) + w_txt = get_wt_convert_stats_ascii(path); + printf("i/%-5s w/%-5s attr/%-17s\t", i_txt, w_txt, a_txt); + } +} + +static void write_name(const char *name) +{ + /* + * With "--full-name", prefix_len=0; this caller needs to pass + * an empty string in that case (a NULL is good for ""). + */ + write_name_quoted_relative(name, prefix_len ? prefix : NULL, + stdout, line_terminator); } static void show_dir_entry(const char *tag, struct dir_entry *ent) @@ -58,11 +82,12 @@ static void show_dir_entry(const char *tag, struct dir_entry *ent) if (len >= ent->len) die("git ls-files: internal error - directory entry not superset of prefix"); - if (!match_pathspec(pathspec, ent->name, ent->len, len, ps_matched)) + if (!dir_path_match(ent, &pathspec, len, ps_matched)) return; fputs(tag, stdout); - write_name(ent->name, ent->len); + write_eolinfo(NULL, ent->name); + write_name(ent->name); } static void show_other_files(struct dir_struct *dir) @@ -126,14 +151,16 @@ static void show_killed_files(struct dir_struct *dir) } } -static void show_ce_entry(const char *tag, struct cache_entry *ce) +static void show_ce_entry(const char *tag, const struct cache_entry *ce) { int len = max_prefix_len; if (len >= ce_namelen(ce)) die("git ls-files: internal error - cache entry not superset of prefix"); - if (!match_pathspec(pathspec, ce->name, ce_namelen(ce), len, ps_matched)) + if (!match_pathspec(&pathspec, ce->name, ce_namelen(ce), + len, ps_matched, + S_ISDIR(ce->ce_mode) || S_ISGITLINK(ce->ce_mode))) return; if (tag && *tag && show_valid_bit && @@ -162,13 +189,16 @@ static void show_ce_entry(const char *tag, struct cache_entry *ce) find_unique_abbrev(ce->sha1,abbrev), ce_stage(ce)); } - write_name(ce->name, ce_namelen(ce)); + write_eolinfo(ce, ce->name); + write_name(ce->name); if (debug_mode) { - printf(" ctime: %d:%d\n", ce->ce_ctime.sec, ce->ce_ctime.nsec); - printf(" mtime: %d:%d\n", ce->ce_mtime.sec, ce->ce_mtime.nsec); - printf(" dev: %d\tino: %d\n", ce->ce_dev, ce->ce_ino); - printf(" uid: %d\tgid: %d\n", ce->ce_uid, ce->ce_gid); - printf(" size: %d\tflags: %x\n", ce->ce_size, ce->ce_flags); + const struct stat_data *sd = &ce->ce_stat_data; + + printf(" ctime: %d:%d\n", sd->sd_ctime.sec, sd->sd_ctime.nsec); + printf(" mtime: %d:%d\n", sd->sd_mtime.sec, sd->sd_mtime.nsec); + printf(" dev: %d\tino: %d\n", sd->sd_dev, sd->sd_ino); + printf(" uid: %d\tgid: %d\n", sd->sd_uid, sd->sd_gid); + printf(" size: %d\tflags: %x\n", sd->sd_size, ce->ce_flags); } } @@ -187,7 +217,8 @@ static void show_ru_info(void) len = strlen(path); if (len < max_prefix_len) continue; /* outside of the prefix */ - if (!match_pathspec(pathspec, path, len, max_prefix_len, ps_matched)) + if (!match_pathspec(&pathspec, path, len, + max_prefix_len, ps_matched, 0)) continue; /* uninterested */ for (i = 0; i < 3; i++) { if (!ui->mode[i]) @@ -195,29 +226,36 @@ static void show_ru_info(void) printf("%s%06o %s %d\t", tag_resolve_undo, ui->mode[i], find_unique_abbrev(ui->sha1[i], abbrev), i + 1); - write_name(path, len); + write_name(path); } } } +static int ce_excluded(struct dir_struct *dir, const struct cache_entry *ce) +{ + int dtype = ce_to_dtype(ce); + return is_excluded(dir, ce->name, &dtype); +} + static void show_files(struct dir_struct *dir) { int i; /* For cached/deleted files we don't need to even do the readdir */ if (show_others || show_killed) { - fill_directory(dir, pathspec); + if (!show_others) + dir->flags |= DIR_COLLECT_KILLED_ONLY; + fill_directory(dir, &pathspec); if (show_others) show_other_files(dir); if (show_killed) show_killed_files(dir); } - if (show_cached | show_stage) { + if (show_cached || show_stage) { for (i = 0; i < active_nr; i++) { - struct cache_entry *ce = active_cache[i]; - int dtype = ce_to_dtype(ce); - if (dir->flags & DIR_SHOW_IGNORED && - !excluded(dir, ce->name, &dtype)) + const struct cache_entry *ce = active_cache[i]; + if ((dir->flags & DIR_SHOW_IGNORED) && + !ce_excluded(dir, ce)) continue; if (show_unmerged && !ce_stage(ce)) continue; @@ -227,14 +265,13 @@ static void show_files(struct dir_struct *dir) (ce_skip_worktree(ce) ? tag_skip_worktree : tag_cached), ce); } } - if (show_deleted | show_modified) { + if (show_deleted || show_modified) { for (i = 0; i < active_nr; i++) { - struct cache_entry *ce = active_cache[i]; + const struct cache_entry *ce = active_cache[i]; struct stat st; int err; - int dtype = ce_to_dtype(ce); - if (dir->flags & DIR_SHOW_IGNORED && - !excluded(dir, ce->name, &dtype)) + if ((dir->flags & DIR_SHOW_IGNORED) && + !ce_excluded(dir, ce)) continue; if (ce->ce_flags & CE_UPDATE) continue; @@ -266,7 +303,7 @@ static void prune_cache(const char *prefix) last = active_nr; while (last > first) { int next = (last + first) >> 1; - struct cache_entry *ce = active_cache[next]; + const struct cache_entry *ce = active_cache[next]; if (!strncmp(ce->name, prefix, max_prefix_len)) { first = next+1; continue; @@ -276,21 +313,6 @@ static void prune_cache(const char *prefix) active_nr = last; } -static void strip_trailing_slash_from_submodules(void) -{ - const char **p; - - for (p = pathspec; *p != NULL; p++) { - int len = strlen(*p), pos; - - if (len < 1 || (*p)[len - 1] != '/') - continue; - pos = cache_name_pos(*p, len - 1); - if (pos >= 0 && S_ISGITLINK(active_cache[pos]->ce_mode)) - *p = xstrndup(*p, len - 1); - } -} - /* * Read the tree specified with --with-tree option * (typically, HEAD) into stage #1 and then @@ -322,13 +344,12 @@ void overlay_tree_on_cache(const char *tree_name, const char *prefix) } if (prefix) { - static const char *(matchbuf[2]); - matchbuf[0] = prefix; - matchbuf[1] = NULL; - init_pathspec(&pathspec, matchbuf); - pathspec.items[0].use_wildcard = 0; + static const char *(matchbuf[1]); + matchbuf[0] = NULL; + parse_pathspec(&pathspec, PATHSPEC_ALL_MAGIC, + PATHSPEC_PREFER_CWD, prefix, matchbuf); } else - init_pathspec(&pathspec, NULL); + memset(&pathspec, 0, sizeof(pathspec)); if (read_tree(tree, 1, &pathspec)) die("unable to read tree entries %s", tree_name); @@ -353,66 +374,18 @@ void overlay_tree_on_cache(const char *tree_name, const char *prefix) } } -int report_path_error(const char *ps_matched, const char **pathspec, const char *prefix) -{ - /* - * Make sure all pathspec matched; otherwise it is an error. - */ - struct strbuf sb = STRBUF_INIT; - const char *name; - int num, errors = 0; - for (num = 0; pathspec[num]; num++) { - int other, found_dup; - - if (ps_matched[num]) - continue; - /* - * The caller might have fed identical pathspec - * twice. Do not barf on such a mistake. - */ - for (found_dup = other = 0; - !found_dup && pathspec[other]; - other++) { - if (other == num || !ps_matched[other]) - continue; - if (!strcmp(pathspec[other], pathspec[num])) - /* - * Ok, we have a match already. - */ - found_dup = 1; - } - if (found_dup) - continue; - - name = quote_path_relative(pathspec[num], -1, &sb, prefix); - error("pathspec '%s' did not match any file(s) known to git.", - name); - errors++; - } - strbuf_release(&sb); - return errors; -} - static const char * const ls_files_usage[] = { - "git ls-files [options] [<file>...]", + N_("git ls-files [<options>] [<file>...]"), NULL }; -static int option_parse_z(const struct option *opt, - const char *arg, int unset) -{ - line_terminator = unset ? '\n' : '\0'; - - return 0; -} - static int option_parse_exclude(const struct option *opt, const char *arg, int unset) { - struct exclude_list *list = opt->value; + struct string_list *exclude_list = opt->value; exc_given = 1; - add_exclude(arg, "", 0, list); + string_list_append(exclude_list, arg); return 0; } @@ -441,62 +414,65 @@ static int option_parse_exclude_standard(const struct option *opt, int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix) { - int require_work_tree = 0, show_tag = 0; + int require_work_tree = 0, show_tag = 0, i; const char *max_prefix; struct dir_struct dir; + struct exclude_list *el; + struct string_list exclude_list = STRING_LIST_INIT_NODUP; struct option builtin_ls_files_options[] = { - { OPTION_CALLBACK, 'z', NULL, NULL, NULL, - "paths are separated with NUL character", - PARSE_OPT_NOARG, option_parse_z }, - OPT_BOOLEAN('t', NULL, &show_tag, - "identify the file status with tags"), - OPT_BOOLEAN('v', NULL, &show_valid_bit, - "use lowercase letters for 'assume unchanged' files"), - OPT_BOOLEAN('c', "cached", &show_cached, - "show cached files in the output (default)"), - OPT_BOOLEAN('d', "deleted", &show_deleted, - "show deleted files in the output"), - OPT_BOOLEAN('m', "modified", &show_modified, - "show modified files in the output"), - OPT_BOOLEAN('o', "others", &show_others, - "show other files in the output"), + /* Think twice before adding "--nul" synonym to this */ + OPT_SET_INT('z', NULL, &line_terminator, + N_("paths are separated with NUL character"), '\0'), + OPT_BOOL('t', NULL, &show_tag, + N_("identify the file status with tags")), + OPT_BOOL('v', NULL, &show_valid_bit, + N_("use lowercase letters for 'assume unchanged' files")), + OPT_BOOL('c', "cached", &show_cached, + N_("show cached files in the output (default)")), + OPT_BOOL('d', "deleted", &show_deleted, + N_("show deleted files in the output")), + OPT_BOOL('m', "modified", &show_modified, + N_("show modified files in the output")), + OPT_BOOL('o', "others", &show_others, + N_("show other files in the output")), OPT_BIT('i', "ignored", &dir.flags, - "show ignored files in the output", + N_("show ignored files in the output"), DIR_SHOW_IGNORED), - OPT_BOOLEAN('s', "stage", &show_stage, - "show staged contents' object name in the output"), - OPT_BOOLEAN('k', "killed", &show_killed, - "show files on the filesystem that need to be removed"), + OPT_BOOL('s', "stage", &show_stage, + N_("show staged contents' object name in the output")), + OPT_BOOL('k', "killed", &show_killed, + N_("show files on the filesystem that need to be removed")), OPT_BIT(0, "directory", &dir.flags, - "show 'other' directories' name only", + N_("show 'other' directories' names only"), DIR_SHOW_OTHER_DIRECTORIES), + OPT_BOOL(0, "eol", &show_eol, N_("show line endings of files")), OPT_NEGBIT(0, "empty-directory", &dir.flags, - "don't show empty directories", + N_("don't show empty directories"), DIR_HIDE_EMPTY_DIRECTORIES), - OPT_BOOLEAN('u', "unmerged", &show_unmerged, - "show unmerged files in the output"), - OPT_BOOLEAN(0, "resolve-undo", &show_resolve_undo, - "show resolve-undo information"), - { OPTION_CALLBACK, 'x', "exclude", &dir.exclude_list[EXC_CMDL], "pattern", - "skip files matching pattern", + OPT_BOOL('u', "unmerged", &show_unmerged, + N_("show unmerged files in the output")), + OPT_BOOL(0, "resolve-undo", &show_resolve_undo, + N_("show resolve-undo information")), + { OPTION_CALLBACK, 'x', "exclude", &exclude_list, N_("pattern"), + N_("skip files matching pattern"), 0, option_parse_exclude }, - { OPTION_CALLBACK, 'X', "exclude-from", &dir, "file", - "exclude patterns are read from <file>", + { OPTION_CALLBACK, 'X', "exclude-from", &dir, N_("file"), + N_("exclude patterns are read from <file>"), 0, option_parse_exclude_from }, - OPT_STRING(0, "exclude-per-directory", &dir.exclude_per_dir, "file", - "read additional per-directory exclude patterns in <file>"), + OPT_STRING(0, "exclude-per-directory", &dir.exclude_per_dir, N_("file"), + N_("read additional per-directory exclude patterns in <file>")), { OPTION_CALLBACK, 0, "exclude-standard", &dir, NULL, - "add the standard git exclusions", + N_("add the standard git exclusions"), PARSE_OPT_NOARG, option_parse_exclude_standard }, { OPTION_SET_INT, 0, "full-name", &prefix_len, NULL, - "make the output relative to the project top directory", + N_("make the output relative to the project top directory"), PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL }, - OPT_BOOLEAN(0, "error-unmatch", &error_unmatch, - "if any <file> is not in the index, treat this as an error"), - OPT_STRING(0, "with-tree", &with_tree, "tree-ish", - "pretend that paths removed since <tree-ish> are still present"), + OPT_BOOL(0, "error-unmatch", &error_unmatch, + N_("if any <file> is not in the index, treat this as an error")), + OPT_STRING(0, "with-tree", &with_tree, N_("tree-ish"), + N_("pretend that paths removed since <tree-ish> are still present")), OPT__ABBREV(&abbrev), - OPT_BOOLEAN(0, "debug", &debug_mode, "show debugging data"), + OPT_BOOL(0, "debug", &debug_mode, N_("show debugging data")), OPT_END() }; @@ -514,6 +490,10 @@ int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix) argc = parse_options(argc, argv, prefix, builtin_ls_files_options, ls_files_usage, 0); + el = add_exclude_list(&dir, EXC_CMDL, "--exclude option"); + for (i = 0; i < exclude_list.nr; i++) { + add_exclude(exclude_list.items[i].string, "", 0, el, --exclude_args); + } if (show_tag || show_valid_bit) { tag_cached = "H "; tag_unmerged = "M "; @@ -538,30 +518,25 @@ int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix) if (require_work_tree && !is_inside_work_tree()) setup_work_tree(); - pathspec = get_pathspec(prefix, argv); - - /* be nice with submodule paths ending in a slash */ - if (pathspec) - strip_trailing_slash_from_submodules(); + parse_pathspec(&pathspec, 0, + PATHSPEC_PREFER_CWD | + PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP, + prefix, argv); /* Find common prefix for all pathspec's */ - max_prefix = common_prefix(pathspec); + max_prefix = common_prefix(&pathspec); max_prefix_len = max_prefix ? strlen(max_prefix) : 0; /* Treat unmatching pathspec elements as errors */ - if (pathspec && error_unmatch) { - int num; - for (num = 0; pathspec[num]; num++) - ; - ps_matched = xcalloc(1, num); - } + if (pathspec.nr && error_unmatch) + ps_matched = xcalloc(pathspec.nr, 1); if ((dir.flags & DIR_SHOW_IGNORED) && !exc_given) die("ls-files --ignored needs some exclude pattern"); /* With no flags, we default to showing the cached files */ - if (!(show_stage | show_deleted | show_others | show_unmerged | - show_killed | show_modified | show_resolve_undo)) + if (!(show_stage || show_deleted || show_others || show_unmerged || + show_killed || show_modified || show_resolve_undo)) show_cached = 1; if (max_prefix) @@ -581,7 +556,7 @@ int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix) if (ps_matched) { int bad; - bad = report_path_error(ps_matched, pathspec, prefix); + bad = report_path_error(ps_matched, &pathspec, prefix); if (bad) fprintf(stderr, "Did you forget to 'git add'?\n"); diff --git a/builtin/ls-remote.c b/builtin/ls-remote.c index 41c88a98a2..66cdd45cc1 100644 --- a/builtin/ls-remote.c +++ b/builtin/ls-remote.c @@ -3,9 +3,12 @@ #include "transport.h" #include "remote.h" -static const char ls_remote_usage[] = -"git ls-remote [--heads] [--tags] [-u <exec> | --upload-pack <exec>]\n" -" [-q|--quiet] [--exit-code] [<repository> [<refs>...]]"; +static const char * const ls_remote_usage[] = { + N_("git ls-remote [--heads] [--tags] [--refs] [--upload-pack=<exec>]\n" + " [-q | --quiet] [--exit-code] [--get-url]\n" + " [--symref] [<repository> [<refs>...]]"), + NULL +}; /* * Is there one among the list of patterns that match the tail part @@ -22,7 +25,7 @@ static int tail_match(const char **pattern, const char *path) if (snprintf(pathbuf, sizeof(pathbuf), "/%s", path) > sizeof(pathbuf)) return error("insanely long ref %.*s...", 20, path); while ((p = *(pattern++)) != NULL) { - if (!fnmatch(p, pathbuf, 0)) + if (!wildmatch(p, pathbuf, 0, NULL)) return 1; } return 0; @@ -30,12 +33,12 @@ static int tail_match(const char **pattern, const char *path) int cmd_ls_remote(int argc, const char **argv, const char *prefix) { - int i; const char *dest = NULL; unsigned flags = 0; int get_url = 0; int quiet = 0; int status = 0; + int show_symref_target = 0; const char *uploadpack = NULL; const char **pattern = NULL; @@ -43,63 +46,36 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix) struct transport *transport; const struct ref *ref; - if (argc == 2 && !strcmp("-h", argv[1])) - usage(ls_remote_usage); + struct option options[] = { + OPT__QUIET(&quiet, N_("do not print remote URL")), + OPT_STRING(0, "upload-pack", &uploadpack, N_("exec"), + N_("path of git-upload-pack on the remote host")), + { OPTION_STRING, 0, "exec", &uploadpack, N_("exec"), + N_("path of git-upload-pack on the remote host"), + PARSE_OPT_HIDDEN }, + OPT_BIT('t', "tags", &flags, N_("limit to tags"), REF_TAGS), + OPT_BIT('h', "heads", &flags, N_("limit to heads"), REF_HEADS), + OPT_BIT(0, "refs", &flags, N_("do not show peeled tags"), REF_NORMAL), + OPT_BOOL(0, "get-url", &get_url, + N_("take url.<base>.insteadOf into account")), + OPT_SET_INT(0, "exit-code", &status, + N_("exit with exit code 2 if no matching refs are found"), 2), + OPT_BOOL(0, "symref", &show_symref_target, + N_("show underlying ref in addition to the object pointed by it")), + OPT_END() + }; - for (i = 1; i < argc; i++) { - const char *arg = argv[i]; + argc = parse_options(argc, argv, prefix, options, ls_remote_usage, + PARSE_OPT_STOP_AT_NON_OPTION); + dest = argv[0]; - if (*arg == '-') { - if (!prefixcmp(arg, "--upload-pack=")) { - uploadpack = arg + 14; - continue; - } - if (!prefixcmp(arg, "--exec=")) { - uploadpack = arg + 7; - continue; - } - if (!strcmp("--tags", arg) || !strcmp("-t", arg)) { - flags |= REF_TAGS; - continue; - } - if (!strcmp("--heads", arg) || !strcmp("-h", arg)) { - flags |= REF_HEADS; - continue; - } - if (!strcmp("--refs", arg)) { - flags |= REF_NORMAL; - continue; - } - if (!strcmp("--quiet", arg) || !strcmp("-q", arg)) { - quiet = 1; - continue; - } - if (!strcmp("--get-url", arg)) { - get_url = 1; - continue; - } - if (!strcmp("--exit-code", arg)) { - /* return this code if no refs are reported */ - status = 2; - continue; - } - usage(ls_remote_usage); - } - dest = arg; - i++; - break; + if (argc > 1) { + int i; + pattern = xcalloc(argc, sizeof(const char *)); + for (i = 1; i < argc; i++) + pattern[i - 1] = xstrfmt("*/%s", argv[i]); } - if (argv[i]) { - int j; - pattern = xcalloc(sizeof(const char *), argc - i + 1); - for (j = i; j < argc; j++) { - int len = strlen(argv[j]); - char *p = xmalloc(len + 3); - sprintf(p, "*/%s", argv[j]); - pattern[j - i] = p; - } - } remote = remote_get(dest); if (!remote) { if (dest) @@ -129,7 +105,9 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix) continue; if (!tail_match(pattern, ref->name)) continue; - printf("%s %s\n", sha1_to_hex(ref->old_sha1), ref->name); + if (show_symref_target && ref->symref) + printf("ref: %s\t%s\n", ref->symref, ref->name); + printf("%s\t%s\n", oid_to_hex(&ref->old_oid), ref->name); status = 0; /* we found something */ } return status; diff --git a/builtin/ls-tree.c b/builtin/ls-tree.c index 6b666e1e87..0e30d86230 100644 --- a/builtin/ls-tree.c +++ b/builtin/ls-tree.c @@ -10,6 +10,7 @@ #include "quote.h" #include "builtin.h" #include "parse-options.h" +#include "pathspec.h" static int line_termination = '\n'; #define LS_RECURSIVE 1 @@ -24,7 +25,7 @@ static int chomp_prefix; static const char *ls_tree_prefix; static const char * const ls_tree_usage[] = { - "git ls-tree [<options>] <tree-ish> [<path>...]", + N_("git ls-tree [<options>] <tree-ish> [<path>...]"), NULL }; @@ -35,7 +36,7 @@ static int show_recursive(const char *base, int baselen, const char *pathname) if (ls_options & LS_RECURSIVE) return 1; - s = pathspec.raw; + s = pathspec._raw; if (!s) return 0; @@ -60,10 +61,11 @@ static int show_recursive(const char *base, int baselen, const char *pathname) } } -static int show_tree(const unsigned char *sha1, const char *base, int baselen, +static int show_tree(const unsigned char *sha1, struct strbuf *base, const char *pathname, unsigned mode, int stage, void *context) { int retval = 0; + int baselen; const char *type = blob_type; if (S_ISGITLINK(mode)) { @@ -78,7 +80,7 @@ static int show_tree(const unsigned char *sha1, const char *base, int baselen, */ type = commit_type; } else if (S_ISDIR(mode)) { - if (show_recursive(base, baselen, pathname)) { + if (show_recursive(base->buf, base->len, pathname)) { retval = READ_TREE_RECURSIVE; if (!(ls_options & LS_SHOW_TREES)) return retval; @@ -88,22 +90,19 @@ static int show_tree(const unsigned char *sha1, const char *base, int baselen, else if (ls_options & LS_TREE_ONLY) return 0; - if (chomp_prefix && - (baselen < chomp_prefix || memcmp(ls_tree_prefix, base, chomp_prefix))) - return 0; - if (!(ls_options & LS_NAME_ONLY)) { if (ls_options & LS_SHOW_SIZE) { char size_text[24]; if (!strcmp(type, blob_type)) { unsigned long size; if (sha1_object_info(sha1, &size) == OBJ_BAD) - strcpy(size_text, "BAD"); + xsnprintf(size_text, sizeof(size_text), + "BAD"); else - snprintf(size_text, sizeof(size_text), - "%lu", size); + xsnprintf(size_text, sizeof(size_text), + "%lu", size); } else - strcpy(size_text, "-"); + xsnprintf(size_text, sizeof(size_text), "-"); printf("%06o %s %s %7s\t", mode, type, find_unique_abbrev(sha1, abbrev), size_text); @@ -111,8 +110,12 @@ static int show_tree(const unsigned char *sha1, const char *base, int baselen, printf("%06o %s %s\t", mode, type, find_unique_abbrev(sha1, abbrev)); } - write_name_quotedpfx(base + chomp_prefix, baselen - chomp_prefix, - pathname, stdout, line_termination); + baselen = base->len; + strbuf_addstr(base, pathname); + write_name_quoted_relative(base->buf, + chomp_prefix ? ls_tree_prefix : NULL, + stdout, line_termination); + strbuf_setlen(base, baselen); return retval; } @@ -122,25 +125,25 @@ int cmd_ls_tree(int argc, const char **argv, const char *prefix) struct tree *tree; int i, full_tree = 0; const struct option ls_tree_options[] = { - OPT_BIT('d', NULL, &ls_options, "only show trees", + OPT_BIT('d', NULL, &ls_options, N_("only show trees"), LS_TREE_ONLY), - OPT_BIT('r', NULL, &ls_options, "recurse into subtrees", + OPT_BIT('r', NULL, &ls_options, N_("recurse into subtrees"), LS_RECURSIVE), - OPT_BIT('t', NULL, &ls_options, "show trees when recursing", + OPT_BIT('t', NULL, &ls_options, N_("show trees when recursing"), LS_SHOW_TREES), OPT_SET_INT('z', NULL, &line_termination, - "terminate entries with NUL byte", 0), - OPT_BIT('l', "long", &ls_options, "include object size", + N_("terminate entries with NUL byte"), 0), + OPT_BIT('l', "long", &ls_options, N_("include object size"), LS_SHOW_SIZE), - OPT_BIT(0, "name-only", &ls_options, "list only filenames", + OPT_BIT(0, "name-only", &ls_options, N_("list only filenames"), LS_NAME_ONLY), - OPT_BIT(0, "name-status", &ls_options, "list only filenames", + OPT_BIT(0, "name-status", &ls_options, N_("list only filenames"), LS_NAME_ONLY), OPT_SET_INT(0, "full-name", &chomp_prefix, - "use full path names", 0), - OPT_BOOLEAN(0, "full-tree", &full_tree, - "list entire tree; not just current directory " - "(implies --full-name)"), + N_("use full path names"), 0), + OPT_BOOL(0, "full-tree", &full_tree, + N_("list entire tree; not just current directory " + "(implies --full-name)")), OPT__ABBREV(&abbrev), OPT_END() }; @@ -166,9 +169,18 @@ int cmd_ls_tree(int argc, const char **argv, const char *prefix) if (get_sha1(argv[0], sha1)) die("Not a valid object name %s", argv[0]); - init_pathspec(&pathspec, get_pathspec(prefix, argv + 1)); + /* + * show_recursive() rolls its own matching code and is + * generally ignorant of 'struct pathspec'. The magic mask + * cannot be lifted until it is converted to use + * match_pathspec() or tree_entry_interesting() + */ + parse_pathspec(&pathspec, PATHSPEC_GLOB | PATHSPEC_ICASE | + PATHSPEC_EXCLUDE, + PATHSPEC_PREFER_CWD, + prefix, argv + 1); for (i = 0; i < pathspec.nr; i++) - pathspec.items[i].use_wildcard = 0; + pathspec.items[i].nowildcard_len = pathspec.items[i].len; pathspec.has_wildcard = 0; tree = parse_tree_indirect(sha1); if (!tree) diff --git a/builtin/mailinfo.c b/builtin/mailinfo.c index bfb32b7233..f6df274111 100644 --- a/builtin/mailinfo.c +++ b/builtin/mailinfo.c @@ -6,1052 +6,44 @@ #include "builtin.h" #include "utf8.h" #include "strbuf.h" - -static FILE *cmitmsg, *patchfile, *fin, *fout; - -static int keep_subject; -static int keep_non_patch_brackets_in_subject; -static const char *metainfo_charset; -static struct strbuf line = STRBUF_INIT; -static struct strbuf name = STRBUF_INIT; -static struct strbuf email = STRBUF_INIT; - -static enum { - TE_DONTCARE, TE_QP, TE_BASE64 -} transfer_encoding; -static enum { - TYPE_TEXT, TYPE_OTHER -} message_type; - -static struct strbuf charset = STRBUF_INIT; -static int patch_lines; -static struct strbuf **p_hdr_data, **s_hdr_data; -static int use_scissors; -static int use_inbody_headers = 1; - -#define MAX_HDR_PARSED 10 -#define MAX_BOUNDARIES 5 - -static void cleanup_space(struct strbuf *sb); - - -static void get_sane_name(struct strbuf *out, struct strbuf *name, struct strbuf *email) -{ - struct strbuf *src = name; - if (name->len < 3 || 60 < name->len || strchr(name->buf, '@') || - strchr(name->buf, '<') || strchr(name->buf, '>')) - src = email; - else if (name == out) - return; - strbuf_reset(out); - strbuf_addbuf(out, src); -} - -static void parse_bogus_from(const struct strbuf *line) -{ - /* John Doe <johndoe> */ - - char *bra, *ket; - /* This is fallback, so do not bother if we already have an - * e-mail address. - */ - if (email.len) - return; - - bra = strchr(line->buf, '<'); - if (!bra) - return; - ket = strchr(bra, '>'); - if (!ket) - return; - - strbuf_reset(&email); - strbuf_add(&email, bra + 1, ket - bra - 1); - - strbuf_reset(&name); - strbuf_add(&name, line->buf, bra - line->buf); - strbuf_trim(&name); - get_sane_name(&name, &name, &email); -} - -static void handle_from(const struct strbuf *from) -{ - char *at; - size_t el; - struct strbuf f; - - strbuf_init(&f, from->len); - strbuf_addbuf(&f, from); - - at = strchr(f.buf, '@'); - if (!at) { - parse_bogus_from(from); - return; - } - - /* - * If we already have one email, don't take any confusing lines - */ - if (email.len && strchr(at + 1, '@')) { - strbuf_release(&f); - return; - } - - /* Pick up the string around '@', possibly delimited with <> - * pair; that is the email part. - */ - while (at > f.buf) { - char c = at[-1]; - if (isspace(c)) - break; - if (c == '<') { - at[-1] = ' '; - break; - } - at--; - } - el = strcspn(at, " \n\t\r\v\f>"); - strbuf_reset(&email); - strbuf_add(&email, at, el); - strbuf_remove(&f, at - f.buf, el + (at[el] ? 1 : 0)); - - /* The remainder is name. It could be - * - * - "John Doe <john.doe@xz>" (a), or - * - "john.doe@xz (John Doe)" (b), or - * - "John (zzz) Doe <john.doe@xz> (Comment)" (c) - * - * but we have removed the email part, so - * - * - remove extra spaces which could stay after email (case 'c'), and - * - trim from both ends, possibly removing the () pair at the end - * (cases 'a' and 'b'). - */ - cleanup_space(&f); - strbuf_trim(&f); - if (f.buf[0] == '(' && f.len && f.buf[f.len - 1] == ')') { - strbuf_remove(&f, 0, 1); - strbuf_setlen(&f, f.len - 1); - } - - get_sane_name(&name, &f, &email); - strbuf_release(&f); -} - -static void handle_header(struct strbuf **out, const struct strbuf *line) -{ - if (!*out) { - *out = xmalloc(sizeof(struct strbuf)); - strbuf_init(*out, line->len); - } else - strbuf_reset(*out); - - strbuf_addbuf(*out, line); -} - -/* NOTE NOTE NOTE. We do not claim we do full MIME. We just attempt - * to have enough heuristics to grok MIME encoded patches often found - * on our mailing lists. For example, we do not even treat header lines - * case insensitively. - */ - -static int slurp_attr(const char *line, const char *name, struct strbuf *attr) -{ - const char *ends, *ap = strcasestr(line, name); - size_t sz; - - if (!ap) { - strbuf_setlen(attr, 0); - return 0; - } - ap += strlen(name); - if (*ap == '"') { - ap++; - ends = "\""; - } - else - ends = "; \t"; - sz = strcspn(ap, ends); - strbuf_add(attr, ap, sz); - return 1; -} - -static struct strbuf *content[MAX_BOUNDARIES]; - -static struct strbuf **content_top = content; - -static void handle_content_type(struct strbuf *line) -{ - struct strbuf *boundary = xmalloc(sizeof(struct strbuf)); - strbuf_init(boundary, line->len); - - if (!strcasestr(line->buf, "text/")) - message_type = TYPE_OTHER; - if (slurp_attr(line->buf, "boundary=", boundary)) { - strbuf_insert(boundary, 0, "--", 2); - if (++content_top > &content[MAX_BOUNDARIES]) { - fprintf(stderr, "Too many boundaries to handle\n"); - exit(1); - } - *content_top = boundary; - boundary = NULL; - } - slurp_attr(line->buf, "charset=", &charset); - - if (boundary) { - strbuf_release(boundary); - free(boundary); - } -} - -static void handle_content_transfer_encoding(const struct strbuf *line) -{ - if (strcasestr(line->buf, "base64")) - transfer_encoding = TE_BASE64; - else if (strcasestr(line->buf, "quoted-printable")) - transfer_encoding = TE_QP; - else - transfer_encoding = TE_DONTCARE; -} - -static int is_multipart_boundary(const struct strbuf *line) -{ - return (((*content_top)->len <= line->len) && - !memcmp(line->buf, (*content_top)->buf, (*content_top)->len)); -} - -static void cleanup_subject(struct strbuf *subject) -{ - size_t at = 0; - - while (at < subject->len) { - char *pos; - size_t remove; - - switch (subject->buf[at]) { - case 'r': case 'R': - if (subject->len <= at + 3) - break; - if (!memcmp(subject->buf + at + 1, "e:", 2)) { - strbuf_remove(subject, at, 3); - continue; - } - at++; - break; - case ' ': case '\t': case ':': - strbuf_remove(subject, at, 1); - continue; - case '[': - pos = strchr(subject->buf + at, ']'); - if (!pos) - break; - remove = pos - subject->buf + at + 1; - if (!keep_non_patch_brackets_in_subject || - (7 <= remove && - memmem(subject->buf + at, remove, "PATCH", 5))) - strbuf_remove(subject, at, remove); - else - at += remove; - continue; - } - break; - } - strbuf_trim(subject); -} - -static void cleanup_space(struct strbuf *sb) -{ - size_t pos, cnt; - for (pos = 0; pos < sb->len; pos++) { - if (isspace(sb->buf[pos])) { - sb->buf[pos] = ' '; - for (cnt = 0; isspace(sb->buf[pos + cnt + 1]); cnt++); - strbuf_remove(sb, pos + 1, cnt); - } - } -} - -static void decode_header(struct strbuf *line); -static const char *header[MAX_HDR_PARSED] = { - "From","Subject","Date", -}; - -static inline int cmp_header(const struct strbuf *line, const char *hdr) -{ - int len = strlen(hdr); - return !strncasecmp(line->buf, hdr, len) && line->len > len && - line->buf[len] == ':' && isspace(line->buf[len + 1]); -} - -static int check_header(const struct strbuf *line, - struct strbuf *hdr_data[], int overwrite) -{ - int i, ret = 0, len; - struct strbuf sb = STRBUF_INIT; - /* search for the interesting parts */ - for (i = 0; header[i]; i++) { - int len = strlen(header[i]); - if ((!hdr_data[i] || overwrite) && cmp_header(line, header[i])) { - /* Unwrap inline B and Q encoding, and optionally - * normalize the meta information to utf8. - */ - strbuf_add(&sb, line->buf + len + 2, line->len - len - 2); - decode_header(&sb); - handle_header(&hdr_data[i], &sb); - ret = 1; - goto check_header_out; - } - } - - /* Content stuff */ - if (cmp_header(line, "Content-Type")) { - len = strlen("Content-Type: "); - strbuf_add(&sb, line->buf + len, line->len - len); - decode_header(&sb); - strbuf_insert(&sb, 0, "Content-Type: ", len); - handle_content_type(&sb); - ret = 1; - goto check_header_out; - } - if (cmp_header(line, "Content-Transfer-Encoding")) { - len = strlen("Content-Transfer-Encoding: "); - strbuf_add(&sb, line->buf + len, line->len - len); - decode_header(&sb); - handle_content_transfer_encoding(&sb); - ret = 1; - goto check_header_out; - } - - /* for inbody stuff */ - if (!prefixcmp(line->buf, ">From") && isspace(line->buf[5])) { - ret = 1; /* Should this return 0? */ - goto check_header_out; - } - if (!prefixcmp(line->buf, "[PATCH]") && isspace(line->buf[7])) { - for (i = 0; header[i]; i++) { - if (!memcmp("Subject", header[i], 7)) { - handle_header(&hdr_data[i], line); - ret = 1; - goto check_header_out; - } - } - } - -check_header_out: - strbuf_release(&sb); - return ret; -} - -static int is_rfc2822_header(const struct strbuf *line) -{ - /* - * The section that defines the loosest possible - * field name is "3.6.8 Optional fields". - * - * optional-field = field-name ":" unstructured CRLF - * field-name = 1*ftext - * ftext = %d33-57 / %59-126 - */ - int ch; - char *cp = line->buf; - - /* Count mbox From headers as headers */ - if (!prefixcmp(cp, "From ") || !prefixcmp(cp, ">From ")) - return 1; - - while ((ch = *cp++)) { - if (ch == ':') - return 1; - if ((33 <= ch && ch <= 57) || - (59 <= ch && ch <= 126)) - continue; - break; - } - return 0; -} - -static int read_one_header_line(struct strbuf *line, FILE *in) -{ - /* Get the first part of the line. */ - if (strbuf_getline(line, in, '\n')) - return 0; - - /* - * Is it an empty line or not a valid rfc2822 header? - * If so, stop here, and return false ("not a header") - */ - strbuf_rtrim(line); - if (!line->len || !is_rfc2822_header(line)) { - /* Re-add the newline */ - strbuf_addch(line, '\n'); - return 0; - } - - /* - * Now we need to eat all the continuation lines.. - * Yuck, 2822 header "folding" - */ - for (;;) { - int peek; - struct strbuf continuation = STRBUF_INIT; - - peek = fgetc(in); ungetc(peek, in); - if (peek != ' ' && peek != '\t') - break; - if (strbuf_getline(&continuation, in, '\n')) - break; - continuation.buf[0] = ' '; - strbuf_rtrim(&continuation); - strbuf_addbuf(line, &continuation); - } - - return 1; -} - -static struct strbuf *decode_q_segment(const struct strbuf *q_seg, int rfc2047) -{ - const char *in = q_seg->buf; - int c; - struct strbuf *out = xmalloc(sizeof(struct strbuf)); - strbuf_init(out, q_seg->len); - - while ((c = *in++) != 0) { - if (c == '=') { - int d = *in++; - if (d == '\n' || !d) - break; /* drop trailing newline */ - strbuf_addch(out, (hexval(d) << 4) | hexval(*in++)); - continue; - } - if (rfc2047 && c == '_') /* rfc2047 4.2 (2) */ - c = 0x20; - strbuf_addch(out, c); - } - return out; -} - -static struct strbuf *decode_b_segment(const struct strbuf *b_seg) -{ - /* Decode in..ep, possibly in-place to ot */ - int c, pos = 0, acc = 0; - const char *in = b_seg->buf; - struct strbuf *out = xmalloc(sizeof(struct strbuf)); - strbuf_init(out, b_seg->len); - - while ((c = *in++) != 0) { - if (c == '+') - c = 62; - else if (c == '/') - c = 63; - else if ('A' <= c && c <= 'Z') - c -= 'A'; - else if ('a' <= c && c <= 'z') - c -= 'a' - 26; - else if ('0' <= c && c <= '9') - c -= '0' - 52; - else - continue; /* garbage */ - switch (pos++) { - case 0: - acc = (c << 2); - break; - case 1: - strbuf_addch(out, (acc | (c >> 4))); - acc = (c & 15) << 4; - break; - case 2: - strbuf_addch(out, (acc | (c >> 2))); - acc = (c & 3) << 6; - break; - case 3: - strbuf_addch(out, (acc | c)); - acc = pos = 0; - break; - } - } - return out; -} - -/* - * When there is no known charset, guess. - * - * Right now we assume that if the target is UTF-8 (the default), - * and it already looks like UTF-8 (which includes US-ASCII as its - * subset, of course) then that is what it is and there is nothing - * to do. - * - * Otherwise, we default to assuming it is Latin1 for historical - * reasons. - */ -static const char *guess_charset(const struct strbuf *line, const char *target_charset) -{ - if (is_encoding_utf8(target_charset)) { - if (is_utf8(line->buf)) - return NULL; - } - return "ISO8859-1"; -} - -static void convert_to_utf8(struct strbuf *line, const char *charset) -{ - char *out; - - if (!charset || !*charset) { - charset = guess_charset(line, metainfo_charset); - if (!charset) - return; - } - - if (!strcasecmp(metainfo_charset, charset)) - return; - out = reencode_string(line->buf, metainfo_charset, charset); - if (!out) - die("cannot convert from %s to %s", - charset, metainfo_charset); - strbuf_attach(line, out, strlen(out), strlen(out)); -} - -static int decode_header_bq(struct strbuf *it) -{ - char *in, *ep, *cp; - struct strbuf outbuf = STRBUF_INIT, *dec; - struct strbuf charset_q = STRBUF_INIT, piecebuf = STRBUF_INIT; - int rfc2047 = 0; - - in = it->buf; - while (in - it->buf <= it->len && (ep = strstr(in, "=?")) != NULL) { - int encoding; - strbuf_reset(&charset_q); - strbuf_reset(&piecebuf); - rfc2047 = 1; - - if (in != ep) { - /* - * We are about to process an encoded-word - * that begins at ep, but there is something - * before the encoded word. - */ - char *scan; - for (scan = in; scan < ep; scan++) - if (!isspace(*scan)) - break; - - if (scan != ep || in == it->buf) { - /* - * We should not lose that "something", - * unless we have just processed an - * encoded-word, and there is only LWS - * before the one we are about to process. - */ - strbuf_add(&outbuf, in, ep - in); - } - } - /* E.g. - * ep : "=?iso-2022-jp?B?GyR...?= foo" - * ep : "=?ISO-8859-1?Q?Foo=FCbar?= baz" - */ - ep += 2; - - if (ep - it->buf >= it->len || !(cp = strchr(ep, '?'))) - goto decode_header_bq_out; - - if (cp + 3 - it->buf > it->len) - goto decode_header_bq_out; - strbuf_add(&charset_q, ep, cp - ep); - - encoding = cp[1]; - if (!encoding || cp[2] != '?') - goto decode_header_bq_out; - ep = strstr(cp + 3, "?="); - if (!ep) - goto decode_header_bq_out; - strbuf_add(&piecebuf, cp + 3, ep - cp - 3); - switch (tolower(encoding)) { - default: - goto decode_header_bq_out; - case 'b': - dec = decode_b_segment(&piecebuf); - break; - case 'q': - dec = decode_q_segment(&piecebuf, 1); - break; - } - if (metainfo_charset) - convert_to_utf8(dec, charset_q.buf); - - strbuf_addbuf(&outbuf, dec); - strbuf_release(dec); - free(dec); - in = ep + 2; - } - strbuf_addstr(&outbuf, in); - strbuf_reset(it); - strbuf_addbuf(it, &outbuf); -decode_header_bq_out: - strbuf_release(&outbuf); - strbuf_release(&charset_q); - strbuf_release(&piecebuf); - return rfc2047; -} - -static void decode_header(struct strbuf *it) -{ - if (decode_header_bq(it)) - return; - /* otherwise "it" is a straight copy of the input. - * This can be binary guck but there is no charset specified. - */ - if (metainfo_charset) - convert_to_utf8(it, ""); -} - -static void decode_transfer_encoding(struct strbuf *line) -{ - struct strbuf *ret; - - switch (transfer_encoding) { - case TE_QP: - ret = decode_q_segment(line, 0); - break; - case TE_BASE64: - ret = decode_b_segment(line); - break; - case TE_DONTCARE: - default: - return; - } - strbuf_reset(line); - strbuf_addbuf(line, ret); - strbuf_release(ret); - free(ret); -} - -static void handle_filter(struct strbuf *line); - -static int find_boundary(void) -{ - while (!strbuf_getline(&line, fin, '\n')) { - if (*content_top && is_multipart_boundary(&line)) - return 1; - } - return 0; -} - -static int handle_boundary(void) -{ - struct strbuf newline = STRBUF_INIT; - - strbuf_addch(&newline, '\n'); -again: - if (line.len >= (*content_top)->len + 2 && - !memcmp(line.buf + (*content_top)->len, "--", 2)) { - /* we hit an end boundary */ - /* pop the current boundary off the stack */ - strbuf_release(*content_top); - free(*content_top); - *content_top = NULL; - - /* technically won't happen as is_multipart_boundary() - will fail first. But just in case.. - */ - if (--content_top < content) { - fprintf(stderr, "Detected mismatched boundaries, " - "can't recover\n"); - exit(1); - } - handle_filter(&newline); - strbuf_release(&newline); - - /* skip to the next boundary */ - if (!find_boundary()) - return 0; - goto again; - } - - /* set some defaults */ - transfer_encoding = TE_DONTCARE; - strbuf_reset(&charset); - message_type = TYPE_TEXT; - - /* slurp in this section's info */ - while (read_one_header_line(&line, fin)) - check_header(&line, p_hdr_data, 0); - - strbuf_release(&newline); - /* replenish line */ - if (strbuf_getline(&line, fin, '\n')) - return 0; - strbuf_addch(&line, '\n'); - return 1; -} - -static inline int patchbreak(const struct strbuf *line) -{ - size_t i; - - /* Beginning of a "diff -" header? */ - if (!prefixcmp(line->buf, "diff -")) - return 1; - - /* CVS "Index: " line? */ - if (!prefixcmp(line->buf, "Index: ")) - return 1; - - /* - * "--- <filename>" starts patches without headers - * "---<sp>*" is a manual separator - */ - if (line->len < 4) - return 0; - - if (!prefixcmp(line->buf, "---")) { - /* space followed by a filename? */ - if (line->buf[3] == ' ' && !isspace(line->buf[4])) - return 1; - /* Just whitespace? */ - for (i = 3; i < line->len; i++) { - unsigned char c = line->buf[i]; - if (c == '\n') - return 1; - if (!isspace(c)) - break; - } - return 0; - } - return 0; -} - -static int is_scissors_line(const struct strbuf *line) -{ - size_t i, len = line->len; - int scissors = 0, gap = 0; - int first_nonblank = -1; - int last_nonblank = 0, visible, perforation = 0, in_perforation = 0; - const char *buf = line->buf; - - for (i = 0; i < len; i++) { - if (isspace(buf[i])) { - if (in_perforation) { - perforation++; - gap++; - } - continue; - } - last_nonblank = i; - if (first_nonblank < 0) - first_nonblank = i; - if (buf[i] == '-') { - in_perforation = 1; - perforation++; - continue; - } - if (i + 1 < len && - (!memcmp(buf + i, ">8", 2) || !memcmp(buf + i, "8<", 2) || - !memcmp(buf + i, ">%", 2) || !memcmp(buf + i, "%<", 2))) { - in_perforation = 1; - perforation += 2; - scissors += 2; - i++; - continue; - } - in_perforation = 0; - } - - /* - * The mark must be at least 8 bytes long (e.g. "-- >8 --"). - * Even though there can be arbitrary cruft on the same line - * (e.g. "cut here"), in order to avoid misidentification, the - * perforation must occupy more than a third of the visible - * width of the line, and dashes and scissors must occupy more - * than half of the perforation. - */ - - visible = last_nonblank - first_nonblank + 1; - return (scissors && 8 <= visible && - visible < perforation * 3 && - gap * 2 < perforation); -} - -static int handle_commit_msg(struct strbuf *line) -{ - static int still_looking = 1; - - if (!cmitmsg) - return 0; - - if (still_looking) { - if (!line->len || (line->len == 1 && line->buf[0] == '\n')) - return 0; - } - - if (use_inbody_headers && still_looking) { - still_looking = check_header(line, s_hdr_data, 0); - if (still_looking) - return 0; - } else - /* Only trim the first (blank) line of the commit message - * when ignoring in-body headers. - */ - still_looking = 0; - - /* normalize the log message to UTF-8. */ - if (metainfo_charset) - convert_to_utf8(line, charset.buf); - - if (use_scissors && is_scissors_line(line)) { - int i; - if (fseek(cmitmsg, 0L, SEEK_SET)) - die_errno("Could not rewind output message file"); - if (ftruncate(fileno(cmitmsg), 0)) - die_errno("Could not truncate output message file at scissors"); - still_looking = 1; - - /* - * We may have already read "secondary headers"; purge - * them to give ourselves a clean restart. - */ - for (i = 0; header[i]; i++) { - if (s_hdr_data[i]) - strbuf_release(s_hdr_data[i]); - s_hdr_data[i] = NULL; - } - return 0; - } - - if (patchbreak(line)) { - fclose(cmitmsg); - cmitmsg = NULL; - return 1; - } - - fputs(line->buf, cmitmsg); - return 0; -} - -static void handle_patch(const struct strbuf *line) -{ - fwrite(line->buf, 1, line->len, patchfile); - patch_lines++; -} - -static void handle_filter(struct strbuf *line) -{ - static int filter = 0; - - /* filter tells us which part we left off on */ - switch (filter) { - case 0: - if (!handle_commit_msg(line)) - break; - filter++; - case 1: - handle_patch(line); - break; - } -} - -static void handle_body(void) -{ - struct strbuf prev = STRBUF_INIT; - - /* Skip up to the first boundary */ - if (*content_top) { - if (!find_boundary()) - goto handle_body_out; - } - - do { - /* process any boundary lines */ - if (*content_top && is_multipart_boundary(&line)) { - /* flush any leftover */ - if (prev.len) { - handle_filter(&prev); - strbuf_reset(&prev); - } - if (!handle_boundary()) - goto handle_body_out; - } - - /* Unwrap transfer encoding */ - decode_transfer_encoding(&line); - - switch (transfer_encoding) { - case TE_BASE64: - case TE_QP: - { - struct strbuf **lines, **it, *sb; - - /* Prepend any previous partial lines */ - strbuf_insert(&line, 0, prev.buf, prev.len); - strbuf_reset(&prev); - - /* binary data most likely doesn't have newlines */ - if (message_type != TYPE_TEXT) { - handle_filter(&line); - break; - } - /* - * This is a decoded line that may contain - * multiple new lines. Pass only one chunk - * at a time to handle_filter() - */ - lines = strbuf_split(&line, '\n'); - for (it = lines; (sb = *it); it++) { - if (*(it + 1) == NULL) /* The last line */ - if (sb->buf[sb->len - 1] != '\n') { - /* Partial line, save it for later. */ - strbuf_addbuf(&prev, sb); - break; - } - handle_filter(sb); - } - /* - * The partial chunk is saved in "prev" and will be - * appended by the next iteration of read_line_with_nul(). - */ - strbuf_list_free(lines); - break; - } - default: - handle_filter(&line); - } - - } while (!strbuf_getwholeline(&line, fin, '\n')); - -handle_body_out: - strbuf_release(&prev); -} - -static void output_header_lines(FILE *fout, const char *hdr, const struct strbuf *data) -{ - const char *sp = data->buf; - while (1) { - char *ep = strchr(sp, '\n'); - int len; - if (!ep) - len = strlen(sp); - else - len = ep - sp; - fprintf(fout, "%s: %.*s\n", hdr, len, sp); - if (!ep) - break; - sp = ep + 1; - } -} - -static void handle_info(void) -{ - struct strbuf *hdr; - int i; - - for (i = 0; header[i]; i++) { - /* only print inbody headers if we output a patch file */ - if (patch_lines && s_hdr_data[i]) - hdr = s_hdr_data[i]; - else if (p_hdr_data[i]) - hdr = p_hdr_data[i]; - else - continue; - - if (!memcmp(header[i], "Subject", 7)) { - if (!keep_subject) { - cleanup_subject(hdr); - cleanup_space(hdr); - } - output_header_lines(fout, "Subject", hdr); - } else if (!memcmp(header[i], "From", 4)) { - cleanup_space(hdr); - handle_from(hdr); - fprintf(fout, "Author: %s\n", name.buf); - fprintf(fout, "Email: %s\n", email.buf); - } else { - cleanup_space(hdr); - fprintf(fout, "%s: %s\n", header[i], hdr->buf); - } - } - fprintf(fout, "\n"); -} - -static int mailinfo(FILE *in, FILE *out, const char *msg, const char *patch) -{ - int peek; - fin = in; - fout = out; - - cmitmsg = fopen(msg, "w"); - if (!cmitmsg) { - perror(msg); - return -1; - } - patchfile = fopen(patch, "w"); - if (!patchfile) { - perror(patch); - fclose(cmitmsg); - return -1; - } - - p_hdr_data = xcalloc(MAX_HDR_PARSED, sizeof(*p_hdr_data)); - s_hdr_data = xcalloc(MAX_HDR_PARSED, sizeof(*s_hdr_data)); - - do { - peek = fgetc(in); - } while (isspace(peek)); - ungetc(peek, in); - - /* process the email header */ - while (read_one_header_line(&line, fin)) - check_header(&line, p_hdr_data, 1); - - handle_body(); - handle_info(); - - return 0; -} - -static int git_mailinfo_config(const char *var, const char *value, void *unused) -{ - if (prefixcmp(var, "mailinfo.")) - return git_default_config(var, value, unused); - if (!strcmp(var, "mailinfo.scissors")) { - use_scissors = git_config_bool(var, value); - return 0; - } - /* perhaps others here */ - return 0; -} +#include "mailinfo.h" static const char mailinfo_usage[] = - "git mailinfo [-k|-b] [-u | --encoding=<encoding> | -n] [--scissors | --no-scissors] msg patch < mail >info"; + "git mailinfo [-k | -b] [-m | --message-id] [-u | --encoding=<encoding> | -n] [--scissors | --no-scissors] <msg> <patch> < mail >info"; int cmd_mailinfo(int argc, const char **argv, const char *prefix) { const char *def_charset; + struct mailinfo mi; + int status; /* NEEDSWORK: might want to do the optional .git/ directory * discovery */ - git_config(git_mailinfo_config, NULL); + setup_mailinfo(&mi); def_charset = get_commit_output_encoding(); - metainfo_charset = def_charset; + mi.metainfo_charset = def_charset; while (1 < argc && argv[1][0] == '-') { if (!strcmp(argv[1], "-k")) - keep_subject = 1; + mi.keep_subject = 1; else if (!strcmp(argv[1], "-b")) - keep_non_patch_brackets_in_subject = 1; + mi.keep_non_patch_brackets_in_subject = 1; + else if (!strcmp(argv[1], "-m") || !strcmp(argv[1], "--message-id")) + mi.add_message_id = 1; else if (!strcmp(argv[1], "-u")) - metainfo_charset = def_charset; + mi.metainfo_charset = def_charset; else if (!strcmp(argv[1], "-n")) - metainfo_charset = NULL; - else if (!prefixcmp(argv[1], "--encoding=")) - metainfo_charset = argv[1] + 11; + mi.metainfo_charset = NULL; + else if (starts_with(argv[1], "--encoding=")) + mi.metainfo_charset = argv[1] + 11; else if (!strcmp(argv[1], "--scissors")) - use_scissors = 1; + mi.use_scissors = 1; else if (!strcmp(argv[1], "--no-scissors")) - use_scissors = 0; + mi.use_scissors = 0; else if (!strcmp(argv[1], "--no-inbody-headers")) - use_inbody_headers = 0; + mi.use_inbody_headers = 0; else usage(mailinfo_usage); argc--; argv++; @@ -1060,5 +52,10 @@ int cmd_mailinfo(int argc, const char **argv, const char *prefix) if (argc != 3) usage(mailinfo_usage); - return !!mailinfo(stdin, stdout, argv[1], argv[2]); + mi.input = stdin; + mi.output = stdout; + status = !!mailinfo(&mi, argv[1], argv[2]); + clear_mailinfo(&mi); + + return status; } diff --git a/builtin/mailsplit.c b/builtin/mailsplit.c index 2d4327801e..4859ede38a 100644 --- a/builtin/mailsplit.c +++ b/builtin/mailsplit.c @@ -53,14 +53,15 @@ static int keep_cr; */ static int split_one(FILE *mbox, const char *name, int allow_bare) { - FILE *output = NULL; + FILE *output; int fd; int status = 0; int is_bare = !is_from_line(buf.buf, buf.len); - if (is_bare && !allow_bare) - goto corrupt; - + if (is_bare && !allow_bare) { + fprintf(stderr, "corrupt mailbox\n"); + exit(1); + } fd = open(name, O_WRONLY | O_CREAT | O_EXCL, 0666); if (fd < 0) die_errno("cannot open output file '%s'", name); @@ -91,79 +92,110 @@ static int split_one(FILE *mbox, const char *name, int allow_bare) } fclose(output); return status; - - corrupt: - if (output) - fclose(output); - unlink(name); - fprintf(stderr, "corrupt mailbox\n"); - exit(1); } static int populate_maildir_list(struct string_list *list, const char *path) { DIR *dir; struct dirent *dent; - char name[PATH_MAX]; + char *name = NULL; char *subs[] = { "cur", "new", NULL }; char **sub; + int ret = -1; for (sub = subs; *sub; ++sub) { - snprintf(name, sizeof(name), "%s/%s", path, *sub); + free(name); + name = xstrfmt("%s/%s", path, *sub); if ((dir = opendir(name)) == NULL) { if (errno == ENOENT) continue; - error("cannot opendir %s (%s)", name, strerror(errno)); - return -1; + error_errno("cannot opendir %s", name); + goto out; } while ((dent = readdir(dir)) != NULL) { if (dent->d_name[0] == '.') continue; - snprintf(name, sizeof(name), "%s/%s", *sub, dent->d_name); + free(name); + name = xstrfmt("%s/%s", *sub, dent->d_name); string_list_insert(list, name); } closedir(dir); } - return 0; + ret = 0; + +out: + free(name); + return ret; +} + +static int maildir_filename_cmp(const char *a, const char *b) +{ + while (*a && *b) { + if (isdigit(*a) && isdigit(*b)) { + long int na, nb; + na = strtol(a, (char **)&a, 10); + nb = strtol(b, (char **)&b, 10); + if (na != nb) + return na - nb; + /* strtol advanced our pointers */ + } + else { + if (*a != *b) + return (unsigned char)*a - (unsigned char)*b; + a++; + b++; + } + } + return (unsigned char)*a - (unsigned char)*b; } static int split_maildir(const char *maildir, const char *dir, int nr_prec, int skip) { - char file[PATH_MAX]; - char name[PATH_MAX]; + char *file = NULL; + FILE *f = NULL; int ret = -1; int i; struct string_list list = STRING_LIST_INIT_DUP; + list.cmp = maildir_filename_cmp; + if (populate_maildir_list(&list, maildir) < 0) goto out; for (i = 0; i < list.nr; i++) { - FILE *f; - snprintf(file, sizeof(file), "%s/%s", maildir, list.items[i].string); + char *name; + + free(file); + file = xstrfmt("%s/%s", maildir, list.items[i].string); + f = fopen(file, "r"); if (!f) { - error("cannot open mail %s (%s)", file, strerror(errno)); + error_errno("cannot open mail %s", file); goto out; } if (strbuf_getwholeline(&buf, f, '\n')) { - error("cannot read mail %s (%s)", file, strerror(errno)); + error_errno("cannot read mail %s", file); goto out; } - sprintf(name, "%s/%0*d", dir, nr_prec, ++skip); + name = xstrfmt("%s/%0*d", dir, nr_prec, ++skip); split_one(f, name, 1); + free(name); fclose(f); + f = NULL; } ret = skip; out: + if (f) + fclose(f); + free(file); string_list_clear(&list, 1); return ret; } @@ -171,7 +203,6 @@ out: static int split_mbox(const char *file, const char *dir, int allow_bare, int nr_prec, int skip) { - char name[PATH_MAX]; int ret = -1; int peek; @@ -179,7 +210,7 @@ static int split_mbox(const char *file, const char *dir, int allow_bare, int file_done = 0; if (!f) { - error("cannot open mbox %s", file); + error_errno("cannot open mbox %s", file); goto out; } @@ -198,8 +229,9 @@ static int split_mbox(const char *file, const char *dir, int allow_bare, } while (!file_done) { - sprintf(name, "%s/%0*d", dir, nr_prec, ++skip); + char *name = xstrfmt("%s/%0*d", dir, nr_prec, ++skip); file_done = split_one(f, name, allow_bare); + free(name); } if (f != stdin) @@ -286,7 +318,7 @@ int cmd_mailsplit(int argc, const char **argv, const char *prefix) } if (stat(arg, &argstat) == -1) { - error("cannot stat %s (%s)", arg, strerror(errno)); + error_errno("cannot stat %s", arg); return 1; } diff --git a/builtin/merge-base.c b/builtin/merge-base.c index 4f30f1b0c8..c0d1822eb3 100644 --- a/builtin/merge-base.c +++ b/builtin/merge-base.c @@ -1,19 +1,22 @@ #include "builtin.h" #include "cache.h" #include "commit.h" +#include "refs.h" +#include "diff.h" +#include "revision.h" #include "parse-options.h" static int show_merge_base(struct commit **rev, int rev_nr, int show_all) { struct commit_list *result; - result = get_merge_bases_many(rev[0], rev_nr - 1, rev + 1, 0); + result = get_merge_bases_many_dirty(rev[0], rev_nr - 1, rev + 1); if (!result) return 1; while (result) { - printf("%s\n", sha1_to_hex(result->item->object.sha1)); + printf("%s\n", oid_to_hex(&result->item->object.oid)); if (!show_all) return 0; result = result->next; @@ -23,9 +26,11 @@ static int show_merge_base(struct commit **rev, int rev_nr, int show_all) } static const char * const merge_base_usage[] = { - "git merge-base [-a|--all] <commit> <commit>...", - "git merge-base [-a|--all] --octopus <commit>...", - "git merge-base --independent <commit>...", + N_("git merge-base [-a | --all] <commit> <commit>..."), + N_("git merge-base [-a | --all] --octopus <commit>..."), + N_("git merge-base --independent <commit>..."), + N_("git merge-base --is-ancestor <commit> <commit>"), + N_("git merge-base --fork-point <ref> [<commit>]"), NULL }; @@ -43,25 +48,42 @@ static struct commit *get_commit_reference(const char *arg) return r; } -static int handle_octopus(int count, const char **args, int reduce, int show_all) +static int handle_independent(int count, const char **args) { struct commit_list *revs = NULL; struct commit_list *result; int i; - if (reduce) - show_all = 1; + for (i = count - 1; i >= 0; i--) + commit_list_insert(get_commit_reference(args[i]), &revs); + + result = reduce_heads(revs); + if (!result) + return 1; + + while (result) { + printf("%s\n", oid_to_hex(&result->item->object.oid)); + result = result->next; + } + return 0; +} + +static int handle_octopus(int count, const char **args, int show_all) +{ + struct commit_list *revs = NULL; + struct commit_list *result; + int i; for (i = count - 1; i >= 0; i--) commit_list_insert(get_commit_reference(args[i]), &revs); - result = reduce ? reduce_heads(revs) : get_octopus_merge_bases(revs); + result = reduce_heads(get_octopus_merge_bases(revs)); if (!result) return 1; while (result) { - printf("%s\n", sha1_to_hex(result->item->object.sha1)); + printf("%s\n", oid_to_hex(&result->item->object.oid)); if (!show_all) return 0; result = result->next; @@ -70,32 +92,167 @@ static int handle_octopus(int count, const char **args, int reduce, int show_all return 0; } +static int handle_is_ancestor(int argc, const char **argv) +{ + struct commit *one, *two; + + if (argc != 2) + die("--is-ancestor takes exactly two commits"); + one = get_commit_reference(argv[0]); + two = get_commit_reference(argv[1]); + if (in_merge_bases(one, two)) + return 0; + else + return 1; +} + +struct rev_collect { + struct commit **commit; + int nr; + int alloc; + unsigned int initial : 1; +}; + +static void add_one_commit(unsigned char *sha1, struct rev_collect *revs) +{ + struct commit *commit; + + if (is_null_sha1(sha1)) + return; + + commit = lookup_commit(sha1); + if (!commit || + (commit->object.flags & TMP_MARK) || + parse_commit(commit)) + return; + + ALLOC_GROW(revs->commit, revs->nr + 1, revs->alloc); + revs->commit[revs->nr++] = commit; + commit->object.flags |= TMP_MARK; +} + +static int collect_one_reflog_ent(unsigned char *osha1, unsigned char *nsha1, + const char *ident, unsigned long timestamp, + int tz, const char *message, void *cbdata) +{ + struct rev_collect *revs = cbdata; + + if (revs->initial) { + revs->initial = 0; + add_one_commit(osha1, revs); + } + add_one_commit(nsha1, revs); + return 0; +} + +static int handle_fork_point(int argc, const char **argv) +{ + unsigned char sha1[20]; + char *refname; + const char *commitname; + struct rev_collect revs; + struct commit *derived; + struct commit_list *bases; + int i, ret = 0; + + switch (dwim_ref(argv[0], strlen(argv[0]), sha1, &refname)) { + case 0: + die("No such ref: '%s'", argv[0]); + case 1: + break; /* good */ + default: + die("Ambiguous refname: '%s'", argv[0]); + } + + commitname = (argc == 2) ? argv[1] : "HEAD"; + if (get_sha1(commitname, sha1)) + die("Not a valid object name: '%s'", commitname); + + derived = lookup_commit_reference(sha1); + memset(&revs, 0, sizeof(revs)); + revs.initial = 1; + for_each_reflog_ent(refname, collect_one_reflog_ent, &revs); + + for (i = 0; i < revs.nr; i++) + revs.commit[i]->object.flags &= ~TMP_MARK; + + bases = get_merge_bases_many_dirty(derived, revs.nr, revs.commit); + + /* + * There should be one and only one merge base, when we found + * a common ancestor among reflog entries. + */ + if (!bases || bases->next) { + ret = 1; + goto cleanup_return; + } + + /* And the found one must be one of the reflog entries */ + for (i = 0; i < revs.nr; i++) + if (&bases->item->object == &revs.commit[i]->object) + break; /* found */ + if (revs.nr <= i) { + ret = 1; /* not found */ + goto cleanup_return; + } + + printf("%s\n", oid_to_hex(&bases->item->object.oid)); + +cleanup_return: + free_commit_list(bases); + return ret; +} + int cmd_merge_base(int argc, const char **argv, const char *prefix) { struct commit **rev; int rev_nr = 0; int show_all = 0; - int octopus = 0; - int reduce = 0; + int cmdmode = 0; struct option options[] = { - OPT_BOOLEAN('a', "all", &show_all, "output all common ancestors"), - OPT_BOOLEAN(0, "octopus", &octopus, "find ancestors for a single n-way merge"), - OPT_BOOLEAN(0, "independent", &reduce, "list revs not reachable from others"), + OPT_BOOL('a', "all", &show_all, N_("output all common ancestors")), + OPT_CMDMODE(0, "octopus", &cmdmode, + N_("find ancestors for a single n-way merge"), 'o'), + OPT_CMDMODE(0, "independent", &cmdmode, + N_("list revs not reachable from others"), 'r'), + OPT_CMDMODE(0, "is-ancestor", &cmdmode, + N_("is the first one ancestor of the other?"), 'a'), + OPT_CMDMODE(0, "fork-point", &cmdmode, + N_("find where <commit> forked from reflog of <ref>"), 'f'), OPT_END() }; git_config(git_default_config, NULL); argc = parse_options(argc, argv, prefix, options, merge_base_usage, 0); - if (!octopus && !reduce && argc < 2) - usage_with_options(merge_base_usage, options); - if (reduce && (show_all || octopus)) - die("--independent cannot be used with other options"); - if (octopus || reduce) - return handle_octopus(argc, argv, reduce, show_all); + if (cmdmode == 'a') { + if (argc < 2) + usage_with_options(merge_base_usage, options); + if (show_all) + die("--is-ancestor cannot be used with --all"); + return handle_is_ancestor(argc, argv); + } + + if (cmdmode == 'r' && show_all) + die("--independent cannot be used with --all"); + + if (cmdmode == 'o') + return handle_octopus(argc, argv, show_all); + + if (cmdmode == 'r') + return handle_independent(argc, argv); + + if (cmdmode == 'f') { + if (argc < 1 || 2 < argc) + usage_with_options(merge_base_usage, options); + return handle_fork_point(argc, argv); + } + + if (argc < 2) + usage_with_options(merge_base_usage, options); - rev = xmalloc(argc * sizeof(*rev)); + ALLOC_ARRAY(rev, argc); while (argc-- > 0) rev[rev_nr++] = get_commit_reference(*argv++); return show_merge_base(rev, rev_nr, show_all); diff --git a/builtin/merge-file.c b/builtin/merge-file.c index 237abd3c0b..13e22a2f0b 100644 --- a/builtin/merge-file.c +++ b/builtin/merge-file.c @@ -5,7 +5,7 @@ #include "parse-options.h" static const char *const merge_file_usage[] = { - "git merge-file [options] [-L name1 [-L orig [-L name2]]] file1 orig_file file2", + N_("git merge-file [<options>] [-L <name1> [-L <orig> [-L <name2>]]] <file1> <orig-file> <file2>"), NULL }; @@ -30,19 +30,19 @@ int cmd_merge_file(int argc, const char **argv, const char *prefix) int quiet = 0; int prefixlen = 0; struct option options[] = { - OPT_BOOLEAN('p', "stdout", &to_stdout, "send results to standard output"), - OPT_SET_INT(0, "diff3", &xmp.style, "use a diff3 based merge", XDL_MERGE_DIFF3), - OPT_SET_INT(0, "ours", &xmp.favor, "for conflicts, use our version", + OPT_BOOL('p', "stdout", &to_stdout, N_("send results to standard output")), + OPT_SET_INT(0, "diff3", &xmp.style, N_("use a diff3 based merge"), XDL_MERGE_DIFF3), + OPT_SET_INT(0, "ours", &xmp.favor, N_("for conflicts, use our version"), XDL_MERGE_FAVOR_OURS), - OPT_SET_INT(0, "theirs", &xmp.favor, "for conflicts, use their version", + OPT_SET_INT(0, "theirs", &xmp.favor, N_("for conflicts, use their version"), XDL_MERGE_FAVOR_THEIRS), - OPT_SET_INT(0, "union", &xmp.favor, "for conflicts, use a union version", + OPT_SET_INT(0, "union", &xmp.favor, N_("for conflicts, use a union version"), XDL_MERGE_FAVOR_UNION), OPT_INTEGER(0, "marker-size", &xmp.marker_size, - "for conflicts, use this marker size"), - OPT__QUIET(&quiet, "do not warn about conflicts"), - OPT_CALLBACK('L', NULL, names, "name", - "set labels for file1/orig_file/file2", &label_cb), + N_("for conflicts, use this marker size")), + OPT__QUIET(&quiet, N_("do not warn about conflicts")), + OPT_CALLBACK('L', NULL, names, N_("name"), + N_("set labels for file1/orig-file/file2"), &label_cb), OPT_END(), }; @@ -62,8 +62,7 @@ int cmd_merge_file(int argc, const char **argv, const char *prefix) usage_with_options(merge_file_usage, options); if (quiet) { if (!freopen("/dev/null", "w", stderr)) - return error("failed to redirect stderr to /dev/null: " - "%s\n", strerror(errno)); + return error_errno("failed to redirect stderr to /dev/null"); } if (prefix) @@ -75,8 +74,9 @@ int cmd_merge_file(int argc, const char **argv, const char *prefix) names[i] = argv[i]; if (read_mmfile(mmfs + i, fname)) return -1; - if (buffer_is_binary(mmfs[i].ptr, mmfs[i].size)) - return error("Cannot merge binary files: %s\n", + if (mmfs[i].size > MAX_XDIFF_SIZE || + buffer_is_binary(mmfs[i].ptr, mmfs[i].size)) + return error("Cannot merge binary files: %s", argv[i]); } @@ -90,17 +90,22 @@ int cmd_merge_file(int argc, const char **argv, const char *prefix) if (ret >= 0) { const char *filename = argv[0]; - FILE *f = to_stdout ? stdout : fopen(filename, "wb"); + const char *fpath = prefix_filename(prefix, prefixlen, argv[0]); + FILE *f = to_stdout ? stdout : fopen(fpath, "wb"); if (!f) - ret = error("Could not open %s for writing", filename); + ret = error_errno("Could not open %s for writing", + filename); else if (result.size && fwrite(result.ptr, result.size, 1, f) != 1) - ret = error("Could not write to %s", filename); + ret = error_errno("Could not write to %s", filename); else if (fclose(f)) - ret = error("Could not close %s", filename); + ret = error_errno("Could not close %s", filename); free(result.ptr); } + if (ret > 127) + ret = 127; + return ret; } diff --git a/builtin/merge-index.c b/builtin/merge-index.c index 2338832587..1c3427c36c 100644 --- a/builtin/merge-index.c +++ b/builtin/merge-index.c @@ -9,21 +9,21 @@ static int merge_entry(int pos, const char *path) { int found; const char *arguments[] = { pgm, "", "", "", path, "", "", "", NULL }; - char hexbuf[4][60]; + char hexbuf[4][GIT_SHA1_HEXSZ + 1]; char ownbuf[4][60]; if (pos >= active_nr) die("git merge-index: %s not in the cache", path); found = 0; do { - struct cache_entry *ce = active_cache[pos]; + const struct cache_entry *ce = active_cache[pos]; int stage = ce_stage(ce); if (strcmp(ce->name, path)) break; found++; - strcpy(hexbuf[stage], sha1_to_hex(ce->sha1)); - sprintf(ownbuf[stage], "%o", ce->ce_mode); + sha1_to_hex_r(hexbuf[stage], ce->sha1); + xsnprintf(ownbuf[stage], sizeof(ownbuf[stage]), "%o", ce->ce_mode); arguments[stage] = hexbuf[stage]; arguments[stage + 4] = ownbuf[stage]; } while (++pos < active_nr); @@ -42,7 +42,7 @@ static int merge_entry(int pos, const char *path) return found; } -static void merge_file(const char *path) +static void merge_one_path(const char *path) { int pos = cache_name_pos(path, strlen(path)); @@ -58,7 +58,7 @@ static void merge_all(void) { int i; for (i = 0; i < active_nr; i++) { - struct cache_entry *ce = active_cache[i]; + const struct cache_entry *ce = active_cache[i]; if (!ce_stage(ce)) continue; i += merge_entry(i, ce->name)-1; @@ -75,7 +75,7 @@ int cmd_merge_index(int argc, const char **argv, const char *prefix) signal(SIGCHLD, SIG_DFL); if (argc < 3) - usage("git merge-index [-o] [-q] <merge-program> (-a | [--] <filename>*)"); + usage("git merge-index [-o] [-q] <merge-program> (-a | [--] [<filename>...])"); read_cache(); @@ -102,7 +102,7 @@ int cmd_merge_index(int argc, const char **argv, const char *prefix) } die("git merge-index: unknown option %s", arg); } - merge_file(arg); + merge_one_path(arg); } if (err && !quiet) die("merge program failed"); diff --git a/builtin/merge-recursive.c b/builtin/merge-recursive.c index 3a64f5d0bd..491efd556e 100644 --- a/builtin/merge-recursive.c +++ b/builtin/merge-recursive.c @@ -14,7 +14,7 @@ static const char *better_branch_name(const char *branch) if (strlen(branch) != 40) return branch; - sprintf(githead_env, "GITHEAD_%s", branch); + xsnprintf(githead_env, sizeof(githead_env), "GITHEAD_%s", branch); name = getenv(githead_env); return name ? name : branch; } @@ -29,7 +29,7 @@ int cmd_merge_recursive(int argc, const char **argv, const char *prefix) struct commit *result; init_merge_options(&o); - if (argv[0] && !suffixcmp(argv[0], "-subtree")) + if (argv[0] && ends_with(argv[0], "-subtree")) o.subtree_shift = ""; if (argc < 4) @@ -38,7 +38,7 @@ int cmd_merge_recursive(int argc, const char **argv, const char *prefix) for (i = 1; i < argc; ++i) { const char *arg = argv[i]; - if (!prefixcmp(arg, "--")) { + if (starts_with(arg, "--")) { if (!arg[2]) break; if (parse_merge_opt(&o, arg + 2)) diff --git a/builtin/merge-tree.c b/builtin/merge-tree.c index 897a563bc6..5b7ab9b967 100644 --- a/builtin/merge-tree.c +++ b/builtin/merge-tree.c @@ -3,17 +3,15 @@ #include "xdiff-interface.h" #include "blob.h" #include "exec_cmd.h" -#include "merge-file.h" +#include "merge-blobs.h" static const char merge_tree_usage[] = "git merge-tree <base-tree> <branch1> <branch2>"; -static int resolve_directories = 1; struct merge_list { struct merge_list *next; struct merge_list *link; /* other stages for this object */ - unsigned int stage : 2, - flags : 30; + unsigned int stage : 2; unsigned int mode; const char *path; struct blob *blob; @@ -62,7 +60,7 @@ static void *result(struct merge_list *entry, unsigned long *size) const char *path = entry->path; if (!entry->stage) - return read_sha1_file(entry->blob->object.sha1, &type, size); + return read_sha1_file(entry->blob->object.oid.hash, &type, size); base = NULL; if (entry->stage == 1) { base = entry->blob; @@ -76,7 +74,7 @@ static void *result(struct merge_list *entry, unsigned long *size) their = NULL; if (entry) their = entry->blob; - return merge_file(path, base, our, their, size); + return merge_blobs(path, base, our, their, size); } static void *origin(struct merge_list *entry, unsigned long *size) @@ -84,7 +82,7 @@ static void *origin(struct merge_list *entry, unsigned long *size) enum object_type type; while (entry) { if (entry->stage == 2) - return read_sha1_file(entry->blob->object.sha1, &type, size); + return read_sha1_file(entry->blob->object.oid.hash, &type, size); entry = entry->link; } return NULL; @@ -120,7 +118,8 @@ static void show_diff(struct merge_list *entry) if (!dst.ptr) size = 0; dst.size = size; - xdi_diff(&src, &dst, &xpp, &xecfg, &ecb); + if (xdi_diff(&src, &dst, &xpp, &xecfg, &ecb)) + die("unable to generate diff"); free(src.ptr); free(dst.ptr); } @@ -131,7 +130,7 @@ static void show_result_list(struct merge_list *entry) do { struct merge_list *link = entry->link; static const char *desc[4] = { "result", "base", "our", "their" }; - printf(" %-6s %o %s %s\n", desc[entry->stage], entry->mode, sha1_to_hex(entry->blob->object.sha1), entry->path); + printf(" %-6s %o %s %s\n", desc[entry->stage], entry->mode, oid_to_hex(&entry->blob->object.oid), entry->path); entry = link; } while (entry); } @@ -151,12 +150,17 @@ static void show_result(void) /* An empty entry never compares same, not even to another empty entry */ static int same_entry(struct name_entry *a, struct name_entry *b) { - return a->sha1 && - b->sha1 && - !hashcmp(a->sha1, b->sha1) && + return a->oid && + b->oid && + !oidcmp(a->oid, b->oid) && a->mode == b->mode; } +static int both_empty(struct name_entry *a, struct name_entry *b) +{ + return !(a->oid || b->oid); +} + static struct merge_list *create_entry(unsigned stage, unsigned mode, const unsigned char *sha1, const char *path) { struct merge_list *res = xcalloc(1, sizeof(*res)); @@ -170,56 +174,57 @@ static struct merge_list *create_entry(unsigned stage, unsigned mode, const unsi static char *traverse_path(const struct traverse_info *info, const struct name_entry *n) { - char *path = xmalloc(traverse_path_len(info, n) + 1); + char *path = xmallocz(traverse_path_len(info, n)); return make_traverse_path(path, info, n); } -static void resolve(const struct traverse_info *info, struct name_entry *branch1, struct name_entry *result) +static void resolve(const struct traverse_info *info, struct name_entry *ours, struct name_entry *result) { struct merge_list *orig, *final; const char *path; - /* If it's already branch1, don't bother showing it */ - if (!branch1) + /* If it's already ours, don't bother showing it */ + if (!ours) return; path = traverse_path(info, result); - orig = create_entry(2, branch1->mode, branch1->sha1, path); - final = create_entry(0, result->mode, result->sha1, path); + orig = create_entry(2, ours->mode, ours->oid->hash, path); + final = create_entry(0, result->mode, result->oid->hash, path); final->link = orig; add_merge_entry(final); } -static int unresolved_directory(const struct traverse_info *info, struct name_entry n[3]) +static void unresolved_directory(const struct traverse_info *info, + struct name_entry n[3]) { char *newbase; struct name_entry *p; struct tree_desc t[3]; void *buf0, *buf1, *buf2; - if (!resolve_directories) - return 0; - p = n; - if (!p->mode) { - p++; - if (!p->mode) - p++; + for (p = n; p < n + 3; p++) { + if (p->mode && S_ISDIR(p->mode)) + break; } - if (!S_ISDIR(p->mode)) - return 0; + if (n + 3 <= p) + return; /* there is no tree here */ + newbase = traverse_path(info, p); - buf0 = fill_tree_descriptor(t+0, n[0].sha1); - buf1 = fill_tree_descriptor(t+1, n[1].sha1); - buf2 = fill_tree_descriptor(t+2, n[2].sha1); + +#define ENTRY_SHA1(e) (((e)->mode && S_ISDIR((e)->mode)) ? (e)->oid->hash : NULL) + buf0 = fill_tree_descriptor(t+0, ENTRY_SHA1(n + 0)); + buf1 = fill_tree_descriptor(t+1, ENTRY_SHA1(n + 1)); + buf2 = fill_tree_descriptor(t+2, ENTRY_SHA1(n + 2)); +#undef ENTRY_SHA1 + merge_trees(t, newbase); free(buf0); free(buf1); free(buf2); free(newbase); - return 1; } @@ -234,7 +239,7 @@ static struct merge_list *link_entry(unsigned stage, const struct traverse_info path = entry->path; else path = traverse_path(info, n); - link = create_entry(stage, n->mode, n->sha1, path); + link = create_entry(stage, n->mode, n->oid->hash, path); link->link = entry; return link; } @@ -242,18 +247,30 @@ static struct merge_list *link_entry(unsigned stage, const struct traverse_info static void unresolved(const struct traverse_info *info, struct name_entry n[3]) { struct merge_list *entry = NULL; + int i; + unsigned dirmask = 0, mask = 0; + + for (i = 0; i < 3; i++) { + mask |= (1 << i); + /* + * Treat missing entries as directories so that we return + * after unresolved_directory has handled this. + */ + if (!n[i].mode || S_ISDIR(n[i].mode)) + dirmask |= (1 << i); + } + + unresolved_directory(info, n); - if (unresolved_directory(info, n)) + if (dirmask == mask) return; - /* - * Do them in reverse order so that the resulting link - * list has the stages in order - link_entry adds new - * links at the front. - */ - entry = link_entry(3, info, n + 2, entry); - entry = link_entry(2, info, n + 1, entry); - entry = link_entry(1, info, n + 0, entry); + if (n[2].mode && !S_ISDIR(n[2].mode)) + entry = link_entry(3, info, n + 2, entry); + if (n[1].mode && !S_ISDIR(n[1].mode)) + entry = link_entry(2, info, n + 1, entry); + if (n[0].mode && !S_ISDIR(n[0].mode)) + entry = link_entry(1, info, n + 0, entry); add_merge_entry(entry); } @@ -290,25 +307,29 @@ static void unresolved(const struct traverse_info *info, struct name_entry n[3]) static int threeway_callback(int n, unsigned long mask, unsigned long dirmask, struct name_entry *entry, struct traverse_info *info) { /* Same in both? */ - if (same_entry(entry+1, entry+2)) { - if (entry[0].sha1) { - resolve(info, NULL, entry+1); - return mask; - } + if (same_entry(entry+1, entry+2) || both_empty(entry+1, entry+2)) { + /* Modified, added or removed identically */ + resolve(info, NULL, entry+1); + return mask; } if (same_entry(entry+0, entry+1)) { - if (entry[2].sha1 && !S_ISDIR(entry[2].mode)) { + if (entry[2].oid && !S_ISDIR(entry[2].mode)) { + /* We did not touch, they modified -- take theirs */ resolve(info, entry+1, entry+2); return mask; } + /* + * If we did not touch a directory but they made it + * into a file, we fall through and unresolved() + * recurses down. Likewise for the opposite case. + */ } - if (same_entry(entry+0, entry+2)) { - if (entry[1].sha1 && !S_ISDIR(entry[1].mode)) { - resolve(info, NULL, entry+1); - return mask; - } + if (same_entry(entry+0, entry+2) || both_empty(entry+0, entry+2)) { + /* We added, modified or removed, they did not touch -- take ours */ + resolve(info, NULL, entry+1); + return mask; } unresolved(info, entry); diff --git a/builtin/merge.c b/builtin/merge.c index a896165790..b555a1bf9c 100644 --- a/builtin/merge.c +++ b/builtin/merge.c @@ -9,6 +9,7 @@ #include "cache.h" #include "parse-options.h" #include "builtin.h" +#include "lockfile.h" #include "run-command.h" #include "diff.h" #include "refs.h" @@ -27,6 +28,8 @@ #include "resolve-undo.h" #include "remote.h" #include "fmt-merge-msg.h" +#include "gpg-interface.h" +#include "sequencer.h" #define DEFAULT_TWOHEAD (1<<0) #define DEFAULT_OCTOPUS (1<<1) @@ -39,19 +42,18 @@ struct strategy { }; static const char * const builtin_merge_usage[] = { - "git merge [options] [<commit>...]", - "git merge [options] <msg> HEAD <commit>", - "git merge --abort", + N_("git merge [<options>] [<commit>...]"), + N_("git merge [<options>] <msg> HEAD <commit>"), + N_("git merge --abort"), NULL }; static int show_diffstat = 1, shortlog_len = -1, squash; -static int option_commit = 1, allow_fast_forward = 1; -static int fast_forward_only, option_edit; -static int allow_trivial = 1, have_message; +static int option_commit = 1; +static int option_edit = -1; +static int allow_trivial = 1, have_message, verify_signatures; static int overwrite_ignore = 1; -static struct strbuf merge_msg; -static struct commit_list *remoteheads; +static struct strbuf merge_msg = STRBUF_INIT; static struct strategy **use_strategies; static size_t use_strategies_nr, use_strategies_alloc; static const char **xopts; @@ -62,8 +64,10 @@ static int option_renormalize; static int verbosity; static int allow_rerere_auto; static int abort_current_merge; +static int allow_unrelated_histories; static int show_progress = -1; -static int default_to_upstream; +static int default_to_upstream = 1; +static const char *sign_commit; static struct strategy all_strategy[] = { { "recursive", DEFAULT_TWOHEAD | NO_TRIVIAL }, @@ -75,6 +79,14 @@ static struct strategy all_strategy[] = { static const char *pull_twohead, *pull_octopus; +enum ff_type { + FF_NO, + FF_ALLOW, + FF_ONLY +}; + +static enum ff_type fast_forward = FF_ALLOW; + static int option_parse_message(const struct option *opt, const char *arg, int unset) { @@ -179,56 +191,61 @@ static int option_parse_n(const struct option *opt, static struct option builtin_merge_options[] = { { OPTION_CALLBACK, 'n', NULL, NULL, NULL, - "do not show a diffstat at the end of the merge", + N_("do not show a diffstat at the end of the merge"), PARSE_OPT_NOARG, option_parse_n }, - OPT_BOOLEAN(0, "stat", &show_diffstat, - "show a diffstat at the end of the merge"), - OPT_BOOLEAN(0, "summary", &show_diffstat, "(synonym to --stat)"), - { OPTION_INTEGER, 0, "log", &shortlog_len, "n", - "add (at most <n>) entries from shortlog to merge commit message", + OPT_BOOL(0, "stat", &show_diffstat, + N_("show a diffstat at the end of the merge")), + OPT_BOOL(0, "summary", &show_diffstat, N_("(synonym to --stat)")), + { OPTION_INTEGER, 0, "log", &shortlog_len, N_("n"), + N_("add (at most <n>) entries from shortlog to merge commit message"), PARSE_OPT_OPTARG, NULL, DEFAULT_MERGE_LOG_LEN }, - OPT_BOOLEAN(0, "squash", &squash, - "create a single commit instead of doing a merge"), - OPT_BOOLEAN(0, "commit", &option_commit, - "perform a commit if the merge succeeds (default)"), - OPT_BOOLEAN('e', "edit", &option_edit, - "edit message before committing"), - OPT_BOOLEAN(0, "ff", &allow_fast_forward, - "allow fast-forward (default)"), - OPT_BOOLEAN(0, "ff-only", &fast_forward_only, - "abort if fast-forward is not possible"), + OPT_BOOL(0, "squash", &squash, + N_("create a single commit instead of doing a merge")), + OPT_BOOL(0, "commit", &option_commit, + N_("perform a commit if the merge succeeds (default)")), + OPT_BOOL('e', "edit", &option_edit, + N_("edit message before committing")), + OPT_SET_INT(0, "ff", &fast_forward, N_("allow fast-forward (default)"), FF_ALLOW), + { OPTION_SET_INT, 0, "ff-only", &fast_forward, NULL, + N_("abort if fast-forward is not possible"), + PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, FF_ONLY }, OPT_RERERE_AUTOUPDATE(&allow_rerere_auto), - OPT_CALLBACK('s', "strategy", &use_strategies, "strategy", - "merge strategy to use", option_parse_strategy), - OPT_CALLBACK('X', "strategy-option", &xopts, "option=value", - "option for selected merge strategy", option_parse_x), - OPT_CALLBACK('m', "message", &merge_msg, "message", - "merge commit message (for a non-fast-forward merge)", + OPT_BOOL(0, "verify-signatures", &verify_signatures, + N_("Verify that the named commit has a valid GPG signature")), + OPT_CALLBACK('s', "strategy", &use_strategies, N_("strategy"), + N_("merge strategy to use"), option_parse_strategy), + OPT_CALLBACK('X', "strategy-option", &xopts, N_("option=value"), + N_("option for selected merge strategy"), option_parse_x), + OPT_CALLBACK('m', "message", &merge_msg, N_("message"), + N_("merge commit message (for a non-fast-forward merge)"), option_parse_message), OPT__VERBOSITY(&verbosity), - OPT_BOOLEAN(0, "abort", &abort_current_merge, - "abort the current in-progress merge"), - OPT_SET_INT(0, "progress", &show_progress, "force progress reporting", 1), - OPT_BOOLEAN(0, "overwrite-ignore", &overwrite_ignore, "update ignored files (default)"), + OPT_BOOL(0, "abort", &abort_current_merge, + N_("abort the current in-progress merge")), + OPT_BOOL(0, "allow-unrelated-histories", &allow_unrelated_histories, + N_("allow merging unrelated histories")), + OPT_SET_INT(0, "progress", &show_progress, N_("force progress reporting"), 1), + { OPTION_STRING, 'S', "gpg-sign", &sign_commit, N_("key-id"), + N_("GPG sign commit"), PARSE_OPT_OPTARG, NULL, (intptr_t) "" }, + OPT_BOOL(0, "overwrite-ignore", &overwrite_ignore, N_("update ignored files (default)")), OPT_END() }; /* Cleans up metadata that is uninteresting after a succeeded merge. */ static void drop_save(void) { - unlink(git_path("MERGE_HEAD")); - unlink(git_path("MERGE_MSG")); - unlink(git_path("MERGE_MODE")); + unlink(git_path_merge_head()); + unlink(git_path_merge_msg()); + unlink(git_path_merge_mode()); } static int save_state(unsigned char *stash) { int len; - struct child_process cp; + struct child_process cp = CHILD_PROCESS_INIT; struct strbuf buffer = STRBUF_INIT; const char *argv[] = {"stash", "create", NULL}; - memset(&cp, 0, sizeof(cp)); cp.argv = argv; cp.out = -1; cp.git_cmd = 1; @@ -314,7 +331,7 @@ static void finish_up_to_date(const char *msg) drop_save(); } -static void squash_message(struct commit *commit) +static void squash_message(struct commit *commit, struct commit_list *remoteheads) { struct rev_info rev; struct strbuf out = STRBUF_INIT; @@ -324,7 +341,7 @@ static void squash_message(struct commit *commit) struct pretty_print_context ctx = {0}; printf(_("Squash commit -- not updating HEAD\n")); - filename = git_path("SQUASH_MSG"); + filename = git_path_squash_msg(); fd = open(filename, O_WRONLY | O_CREAT, 0666); if (fd < 0) die_errno(_("Could not write to '%s'"), filename); @@ -351,10 +368,10 @@ static void squash_message(struct commit *commit) while ((commit = get_revision(&rev)) != NULL) { strbuf_addch(&out, '\n'); strbuf_addf(&out, "commit %s\n", - sha1_to_hex(commit->object.sha1)); + oid_to_hex(&commit->object.oid)); pretty_print_commit(&ctx, commit, &out); } - if (write(fd, out.buf, out.len) < 0) + if (write_in_full(fd, out.buf, out.len) != out.len) die_errno(_("Writing SQUASH_MSG")); if (close(fd)) die_errno(_("Finishing SQUASH_MSG")); @@ -362,10 +379,11 @@ static void squash_message(struct commit *commit) } static void finish(struct commit *head_commit, + struct commit_list *remoteheads, const unsigned char *new_head, const char *msg) { struct strbuf reflog_message = STRBUF_INIT; - const unsigned char *head = head_commit->object.sha1; + const unsigned char *head = head_commit->object.oid.hash; if (!msg) strbuf_addstr(&reflog_message, getenv("GIT_REFLOG_ACTION")); @@ -376,7 +394,7 @@ static void finish(struct commit *head_commit, getenv("GIT_REFLOG_ACTION"), msg); } if (squash) { - squash_message(head_commit); + squash_message(head_commit, remoteheads); } else { if (verbosity >= 0 && !merge_msg.len) printf(_("No merge message -- not updating HEAD\n")); @@ -384,29 +402,31 @@ static void finish(struct commit *head_commit, const char *argv_gc_auto[] = { "gc", "--auto", NULL }; update_ref(reflog_message.buf, "HEAD", new_head, head, 0, - DIE_ON_ERR); + UPDATE_REFS_DIE_ON_ERR); /* * We ignore errors in 'gc --auto', since the * user should see them. */ + close_all_packs(); run_command_v_opt(argv_gc_auto, RUN_GIT_CMD); } } if (new_head && show_diffstat) { struct diff_options opts; diff_setup(&opts); + opts.stat_width = -1; /* use full terminal width */ + opts.stat_graph_width = -1; /* respect statGraphWidth config */ opts.output_format |= DIFF_FORMAT_SUMMARY | DIFF_FORMAT_DIFFSTAT; opts.detect_rename = DIFF_DETECT_RENAME; - if (diff_setup_done(&opts) < 0) - die(_("diff_setup_done failed")); + diff_setup_done(&opts); diff_tree_sha1(head, new_head, "", &opts); diffcore_std(&opts); diff_flush(&opts); } /* Run a post-merge hook */ - run_hook(NULL, "post-merge", squash ? "1" : "0", NULL); + run_hook_le(NULL, "post-merge", squash ? "1" : "0", NULL); strbuf_release(&reflog_message); } @@ -431,17 +451,17 @@ static void merge_name(const char *remote, struct strbuf *msg) die(_("'%s' does not point to a commit"), remote); if (dwim_ref(remote, strlen(remote), branch_head, &found_ref) > 0) { - if (!prefixcmp(found_ref, "refs/heads/")) { + if (starts_with(found_ref, "refs/heads/")) { strbuf_addf(msg, "%s\t\tbranch '%s' of .\n", sha1_to_hex(branch_head), remote); goto cleanup; } - if (!prefixcmp(found_ref, "refs/tags/")) { + if (starts_with(found_ref, "refs/tags/")) { strbuf_addf(msg, "%s\t\ttag '%s' of .\n", sha1_to_hex(branch_head), remote); goto cleanup; } - if (!prefixcmp(found_ref, "refs/remotes/")) { + if (starts_with(found_ref, "refs/remotes/")) { strbuf_addf(msg, "%s\t\tremote-tracking branch '%s' of .\n", sha1_to_hex(branch_head), remote); goto cleanup; @@ -476,43 +496,34 @@ static void merge_name(const char *remote, struct strbuf *msg) } if (len) { struct strbuf truname = STRBUF_INIT; - strbuf_addstr(&truname, "refs/heads/"); - strbuf_addstr(&truname, remote); + strbuf_addf(&truname, "refs/heads/%s", remote); strbuf_setlen(&truname, truname.len - len); if (ref_exists(truname.buf)) { strbuf_addf(msg, "%s\t\tbranch '%s'%s of .\n", - sha1_to_hex(remote_head->object.sha1), + sha1_to_hex(remote_head->object.oid.hash), truname.buf + 11, (early ? " (early part)" : "")); strbuf_release(&truname); goto cleanup; } + strbuf_release(&truname); } - if (!strcmp(remote, "FETCH_HEAD") && - !access(git_path("FETCH_HEAD"), R_OK)) { - const char *filename; - FILE *fp; - struct strbuf line = STRBUF_INIT; - char *ptr; - - filename = git_path("FETCH_HEAD"); - fp = fopen(filename, "r"); - if (!fp) - die_errno(_("could not open '%s' for reading"), - filename); - strbuf_getline(&line, fp, '\n'); - fclose(fp); - ptr = strstr(line.buf, "\tnot-for-merge\t"); - if (ptr) - strbuf_remove(&line, ptr-line.buf+1, 13); - strbuf_addbuf(msg, &line); - strbuf_release(&line); - goto cleanup; + if (remote_head->util) { + struct merge_remote_desc *desc; + desc = merge_remote_util(remote_head); + if (desc && desc->obj && desc->obj->type == OBJ_TAG) { + strbuf_addf(msg, "%s\t\t%s '%s'\n", + sha1_to_hex(desc->obj->oid.hash), + typename(desc->obj->type), + remote); + goto cleanup; + } } + strbuf_addf(msg, "%s\t\tcommit '%s'\n", - sha1_to_hex(remote_head->object.sha1), remote); + sha1_to_hex(remote_head->object.oid.hash), remote); cleanup: strbuf_release(&buf); strbuf_release(&bname); @@ -529,7 +540,7 @@ static void parse_branch_merge_options(char *bmo) if (argc < 0) die(_("Bad branch.%s.mergeoptions string: %s"), branch, split_cmdline_strerror(argc)); - argv = xrealloc(argv, sizeof(*argv) * (argc + 2)); + REALLOC_ARRAY(argv, argc + 2); memmove(argv + 1, argv, sizeof(*argv) * (argc + 1)); argc++; argv[0] = "branch.*.mergeoptions"; @@ -542,8 +553,8 @@ static int git_merge_config(const char *k, const char *v, void *cb) { int status; - if (branch && !prefixcmp(k, "branch.") && - !prefixcmp(k + 7, branch) && + if (branch && starts_with(k, "branch.") && + starts_with(k + 7, branch) && !strcmp(k + 7 + strlen(branch), ".mergeoptions")) { free(branch_mergeoptions); branch_mergeoptions = xstrdup(v); @@ -561,19 +572,25 @@ static int git_merge_config(const char *k, const char *v, void *cb) else if (!strcmp(k, "merge.ff")) { int boolval = git_config_maybe_bool(k, v); if (0 <= boolval) { - allow_fast_forward = boolval; + fast_forward = boolval ? FF_ALLOW : FF_NO; } else if (v && !strcmp(v, "only")) { - allow_fast_forward = 1; - fast_forward_only = 1; + fast_forward = FF_ONLY; } /* do not barf on values from future versions of git */ return 0; } else if (!strcmp(k, "merge.defaulttoupstream")) { default_to_upstream = git_config_bool(k, v); return 0; + } else if (!strcmp(k, "commit.gpgsign")) { + sign_commit = git_config_bool(k, v) ? "" : NULL; + return 0; } + status = fmt_merge_msg_config(k, v, cb); if (status) return status; + status = git_gpg_config(k, v, NULL); + if (status) + return status; return git_diff_ui_config(k, v, cb); } @@ -619,78 +636,22 @@ static void write_tree_trivial(unsigned char *sha1) die(_("git write-tree failed to write a tree")); } -static const char *merge_argument(struct commit *commit) -{ - if (commit) - return sha1_to_hex(commit->object.sha1); - else - return EMPTY_TREE_SHA1_HEX; -} - -int try_merge_command(const char *strategy, size_t xopts_nr, - const char **xopts, struct commit_list *common, - const char *head_arg, struct commit_list *remotes) -{ - const char **args; - int i = 0, x = 0, ret; - struct commit_list *j; - struct strbuf buf = STRBUF_INIT; - - args = xmalloc((4 + xopts_nr + commit_list_count(common) + - commit_list_count(remotes)) * sizeof(char *)); - strbuf_addf(&buf, "merge-%s", strategy); - args[i++] = buf.buf; - for (x = 0; x < xopts_nr; x++) { - char *s = xmalloc(strlen(xopts[x])+2+1); - strcpy(s, "--"); - strcpy(s+2, xopts[x]); - args[i++] = s; - } - for (j = common; j; j = j->next) - args[i++] = xstrdup(merge_argument(j->item)); - args[i++] = "--"; - args[i++] = head_arg; - for (j = remotes; j; j = j->next) - args[i++] = xstrdup(merge_argument(j->item)); - args[i] = NULL; - ret = run_command_v_opt(args, RUN_GIT_CMD); - strbuf_release(&buf); - i = 1; - for (x = 0; x < xopts_nr; x++) - free((void *)args[i++]); - for (j = common; j; j = j->next) - free((void *)args[i++]); - i += 2; - for (j = remotes; j; j = j->next) - free((void *)args[i++]); - free(args); - discard_cache(); - if (read_cache() < 0) - die(_("failed to read the cache")); - resolve_undo_clear(); - - return ret; -} - static int try_merge_strategy(const char *strategy, struct commit_list *common, + struct commit_list *remoteheads, struct commit *head, const char *head_arg) { - int index_fd; - struct lock_file *lock = xcalloc(1, sizeof(struct lock_file)); + static struct lock_file lock; - index_fd = hold_locked_index(lock, 1); + hold_locked_index(&lock, 1); refresh_cache(REFRESH_QUIET); if (active_cache_changed && - (write_cache(index_fd, active_cache, active_nr) || - commit_locked_index(lock))) + write_locked_index(&the_index, &lock, COMMIT_LOCK)) return error(_("Unable to write index.")); - rollback_lock_file(lock); + rollback_lock_file(&lock); if (!strcmp(strategy, "recursive") || !strcmp(strategy, "subtree")) { int clean, x; struct commit *result; - struct lock_file *lock = xcalloc(1, sizeof(struct lock_file)); - int index_fd; struct commit_list *reversed = NULL; struct merge_options o; struct commit_list *j; @@ -718,14 +679,13 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common, for (j = common; j; j = j->next) commit_list_insert(j->item, &reversed); - index_fd = hold_locked_index(lock, 1); + hold_locked_index(&lock, 1); clean = merge_recursive(&o, head, remoteheads->item, reversed, &result); if (active_cache_changed && - (write_cache(index_fd, active_cache, active_nr) || - commit_locked_index(lock))) + write_locked_index(&the_index, &lock, COMMIT_LOCK)) die (_("unable to write %s"), get_index_file()); - rollback_lock_file(lock); + rollback_lock_file(&lock); return clean ? 0 : 1; } else { return try_merge_command(strategy, xopts_nr, xopts, @@ -752,56 +712,6 @@ static int count_unmerged_entries(void) return ret; } -int checkout_fast_forward(const unsigned char *head, const unsigned char *remote) -{ - struct tree *trees[MAX_UNPACK_TREES]; - struct unpack_trees_options opts; - struct tree_desc t[MAX_UNPACK_TREES]; - int i, fd, nr_trees = 0; - struct dir_struct dir; - struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file)); - - refresh_cache(REFRESH_QUIET); - - fd = hold_locked_index(lock_file, 1); - - memset(&trees, 0, sizeof(trees)); - memset(&opts, 0, sizeof(opts)); - memset(&t, 0, sizeof(t)); - if (overwrite_ignore) { - memset(&dir, 0, sizeof(dir)); - dir.flags |= DIR_SHOW_IGNORED; - setup_standard_excludes(&dir); - opts.dir = &dir; - } - - opts.head_idx = 1; - opts.src_index = &the_index; - opts.dst_index = &the_index; - opts.update = 1; - opts.verbose_update = 1; - opts.merge = 1; - opts.fn = twoway_merge; - setup_unpack_trees_porcelain(&opts, "merge"); - - trees[nr_trees] = parse_tree_indirect(head); - if (!trees[nr_trees++]) - return -1; - trees[nr_trees] = parse_tree_indirect(remote); - if (!trees[nr_trees++]) - return -1; - for (i = 0; i < nr_trees; i++) { - parse_tree(trees[i]); - init_tree_desc(t+i, trees[i]->buffer, trees[i]->size); - } - if (unpack_trees(nr_trees, t, &opts)) - return -1; - if (write_cache(fd, active_cache, active_nr) || - commit_locked_index(lock_file)) - die(_("unable to write new index file")); - return 0; -} - static void split_merge_strategies(const char *string, struct strategy **list, int *nr, int *alloc) { @@ -848,7 +758,7 @@ static void add_strategies(const char *string, unsigned attr) static void write_merge_msg(struct strbuf *msg) { - const char *filename = git_path("MERGE_MSG"); + const char *filename = git_path_merge_msg(); int fd = open(filename, O_WRONLY | O_CREAT, 0666); if (fd < 0) die_errno(_("Could not open '%s' for writing"), @@ -860,119 +770,121 @@ static void write_merge_msg(struct strbuf *msg) static void read_merge_msg(struct strbuf *msg) { - const char *filename = git_path("MERGE_MSG"); + const char *filename = git_path_merge_msg(); strbuf_reset(msg); if (strbuf_read_file(msg, filename, 0) < 0) die_errno(_("Could not read from '%s'"), filename); } -static void write_merge_state(void); -static void abort_commit(const char *err_msg) +static void write_merge_state(struct commit_list *); +static void abort_commit(struct commit_list *remoteheads, const char *err_msg) { if (err_msg) error("%s", err_msg); fprintf(stderr, _("Not committing merge; use 'git commit' to complete the merge.\n")); - write_merge_state(); + write_merge_state(remoteheads); exit(1); } -static void prepare_to_commit(void) +static const char merge_editor_comment[] = +N_("Please enter a commit message to explain why this merge is necessary,\n" + "especially if it merges an updated upstream into a topic branch.\n" + "\n" + "Lines starting with '%c' will be ignored, and an empty message aborts\n" + "the commit.\n"); + +static void prepare_to_commit(struct commit_list *remoteheads) { struct strbuf msg = STRBUF_INIT; strbuf_addbuf(&msg, &merge_msg); strbuf_addch(&msg, '\n'); + if (0 < option_edit) + strbuf_commented_addf(&msg, _(merge_editor_comment), comment_line_char); write_merge_msg(&msg); - run_hook(get_index_file(), "prepare-commit-msg", - git_path("MERGE_MSG"), "merge", NULL, NULL); - if (option_edit) { - if (launch_editor(git_path("MERGE_MSG"), NULL, NULL)) - abort_commit(NULL); + if (run_commit_hook(0 < option_edit, get_index_file(), "prepare-commit-msg", + git_path_merge_msg(), "merge", NULL)) + abort_commit(remoteheads, NULL); + if (0 < option_edit) { + if (launch_editor(git_path_merge_msg(), NULL, NULL)) + abort_commit(remoteheads, NULL); } read_merge_msg(&msg); - stripspace(&msg, option_edit); + strbuf_stripspace(&msg, 0 < option_edit); if (!msg.len) - abort_commit(_("Empty commit message.")); + abort_commit(remoteheads, _("Empty commit message.")); strbuf_release(&merge_msg); strbuf_addbuf(&merge_msg, &msg); strbuf_release(&msg); } -static int merge_trivial(struct commit *head) +static int merge_trivial(struct commit *head, struct commit_list *remoteheads) { unsigned char result_tree[20], result_commit[20]; - struct commit_list *parent = xmalloc(sizeof(*parent)); + struct commit_list *parents, **pptr = &parents; + static struct lock_file lock; + + hold_locked_index(&lock, 1); + refresh_cache(REFRESH_QUIET); + if (active_cache_changed && + write_locked_index(&the_index, &lock, COMMIT_LOCK)) + return error(_("Unable to write index.")); + rollback_lock_file(&lock); write_tree_trivial(result_tree); printf(_("Wonderful.\n")); - parent->item = head; - parent->next = xmalloc(sizeof(*parent->next)); - parent->next->item = remoteheads->item; - parent->next->next = NULL; - prepare_to_commit(); - if (commit_tree(&merge_msg, result_tree, parent, result_commit, NULL)) + pptr = commit_list_append(head, pptr); + pptr = commit_list_append(remoteheads->item, pptr); + prepare_to_commit(remoteheads); + if (commit_tree(merge_msg.buf, merge_msg.len, result_tree, parents, + result_commit, NULL, sign_commit)) die(_("failed to write commit object")); - finish(head, result_commit, "In-index merge"); + finish(head, remoteheads, result_commit, "In-index merge"); drop_save(); return 0; } static int finish_automerge(struct commit *head, + int head_subsumed, struct commit_list *common, + struct commit_list *remoteheads, unsigned char *result_tree, const char *wt_strategy) { - struct commit_list *parents = NULL, *j; + struct commit_list *parents = NULL; struct strbuf buf = STRBUF_INIT; unsigned char result_commit[20]; free_commit_list(common); - if (allow_fast_forward) { - parents = remoteheads; + parents = remoteheads; + if (!head_subsumed || fast_forward == FF_NO) commit_list_insert(head, &parents); - parents = reduce_heads(parents); - } else { - struct commit_list **pptr = &parents; - - pptr = &commit_list_insert(head, - pptr)->next; - for (j = remoteheads; j; j = j->next) - pptr = &commit_list_insert(j->item, pptr)->next; - } strbuf_addch(&merge_msg, '\n'); - prepare_to_commit(); - free_commit_list(remoteheads); - if (commit_tree(&merge_msg, result_tree, parents, result_commit, NULL)) + prepare_to_commit(remoteheads); + if (commit_tree(merge_msg.buf, merge_msg.len, result_tree, parents, + result_commit, NULL, sign_commit)) die(_("failed to write commit object")); strbuf_addf(&buf, "Merge made by the '%s' strategy.", wt_strategy); - finish(head, result_commit, buf.buf); + finish(head, remoteheads, result_commit, buf.buf); strbuf_release(&buf); drop_save(); return 0; } -static int suggest_conflicts(int renormalizing) +static int suggest_conflicts(void) { const char *filename; FILE *fp; - int pos; + struct strbuf msgbuf = STRBUF_INIT; - filename = git_path("MERGE_MSG"); + filename = git_path_merge_msg(); fp = fopen(filename, "a"); if (!fp) die_errno(_("Could not open '%s' for writing"), filename); - fprintf(fp, "\nConflicts:\n"); - for (pos = 0; pos < active_nr; pos++) { - struct cache_entry *ce = active_cache[pos]; - - if (ce_stage(ce)) { - fprintf(fp, "\t%s\n", ce->name); - while (pos + 1 < active_nr && - !strcmp(ce->name, - active_cache[pos + 1]->name)) - pos++; - } - } + + append_conflicts_hint(&msgbuf); + fputs(msgbuf.buf, fp); + strbuf_release(&msgbuf); fclose(fp); rerere(allow_rerere_auto); printf(_("Automatic merge failed; " @@ -992,7 +904,7 @@ static struct commit *is_old_style_invocation(int argc, const char **argv, second_token = lookup_commit_reference_gently(second_sha1, 0); if (!second_token) die(_("'%s' is not a commit"), argv[1]); - if (hashcmp(second_token->object.sha1, head)) + if (hashcmp(second_token->object.oid.hash, head)) return NULL; } return second_token; @@ -1022,7 +934,7 @@ static int evaluate_result(void) } /* - * Pretend as if the user told us to merge with the tracking + * Pretend as if the user told us to merge with the remote-tracking * branch we have for the upstream of the current branch */ static int setup_with_upstream(const char ***argv) @@ -1033,15 +945,15 @@ static int setup_with_upstream(const char ***argv) if (!branch) die(_("No current branch.")); - if (!branch->remote) + if (!branch->remote_name) die(_("No remote for the current branch.")); if (!branch->merge_nr) die(_("No default upstream defined for the current branch.")); - args = xcalloc(branch->merge_nr + 1, sizeof(char *)); + args = xcalloc(st_add(branch->merge_nr, 1), sizeof(char *)); for (i = 0; i < branch->merge_nr; i++) { if (!branch->merge[i]->dst) - die(_("No remote tracking branch for %s from %s"), + die(_("No remote-tracking branch for %s from %s"), branch->merge[i]->src, branch->remote_name); args[i] = branch->merge[i]->dst; } @@ -1050,7 +962,7 @@ static int setup_with_upstream(const char ***argv) return i; } -static void write_merge_state(void) +static void write_merge_state(struct commit_list *remoteheads) { const char *filename; int fd; @@ -1058,16 +970,16 @@ static void write_merge_state(void) struct strbuf buf = STRBUF_INIT; for (j = remoteheads; j; j = j->next) { - unsigned const char *sha1; + struct object_id *oid; struct commit *c = j->item; if (c->util && merge_remote_util(c)->obj) { - sha1 = merge_remote_util(c)->obj->sha1; + oid = &merge_remote_util(c)->obj->oid; } else { - sha1 = c->object.sha1; + oid = &c->object.oid; } - strbuf_addf(&buf, "%s\n", sha1_to_hex(sha1)); + strbuf_addf(&buf, "%s\n", oid_to_hex(oid)); } - filename = git_path("MERGE_HEAD"); + filename = git_path_merge_head(); fd = open(filename, O_WRONLY | O_CREAT, 0666); if (fd < 0) die_errno(_("Could not open '%s' for writing"), filename); @@ -1077,18 +989,185 @@ static void write_merge_state(void) strbuf_addch(&merge_msg, '\n'); write_merge_msg(&merge_msg); - filename = git_path("MERGE_MODE"); + filename = git_path_merge_mode(); fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666); if (fd < 0) die_errno(_("Could not open '%s' for writing"), filename); strbuf_reset(&buf); - if (!allow_fast_forward) + if (fast_forward == FF_NO) strbuf_addf(&buf, "no-ff"); if (write_in_full(fd, buf.buf, buf.len) != buf.len) die_errno(_("Could not write to '%s'"), filename); close(fd); } +static int default_edit_option(void) +{ + static const char name[] = "GIT_MERGE_AUTOEDIT"; + const char *e = getenv(name); + struct stat st_stdin, st_stdout; + + if (have_message) + /* an explicit -m msg without --[no-]edit */ + return 0; + + if (e) { + int v = git_config_maybe_bool(name, e); + if (v < 0) + die("Bad value '%s' in environment '%s'", e, name); + return v; + } + + /* Use editor if stdin and stdout are the same and is a tty */ + return (!fstat(0, &st_stdin) && + !fstat(1, &st_stdout) && + isatty(0) && isatty(1) && + st_stdin.st_dev == st_stdout.st_dev && + st_stdin.st_ino == st_stdout.st_ino && + st_stdin.st_mode == st_stdout.st_mode); +} + +static struct commit_list *reduce_parents(struct commit *head_commit, + int *head_subsumed, + struct commit_list *remoteheads) +{ + struct commit_list *parents, **remotes; + + /* + * Is the current HEAD reachable from another commit being + * merged? If so we do not want to record it as a parent of + * the resulting merge, unless --no-ff is given. We will flip + * this variable to 0 when we find HEAD among the independent + * tips being merged. + */ + *head_subsumed = 1; + + /* Find what parents to record by checking independent ones. */ + parents = reduce_heads(remoteheads); + + remoteheads = NULL; + remotes = &remoteheads; + while (parents) { + struct commit *commit = pop_commit(&parents); + if (commit == head_commit) + *head_subsumed = 0; + else + remotes = &commit_list_insert(commit, remotes)->next; + } + return remoteheads; +} + +static void prepare_merge_message(struct strbuf *merge_names, struct strbuf *merge_msg) +{ + struct fmt_merge_msg_opts opts; + + memset(&opts, 0, sizeof(opts)); + opts.add_title = !have_message; + opts.shortlog_len = shortlog_len; + opts.credit_people = (0 < option_edit); + + fmt_merge_msg(merge_names, merge_msg, &opts); + if (merge_msg->len) + strbuf_setlen(merge_msg, merge_msg->len - 1); +} + +static void handle_fetch_head(struct commit_list **remotes, struct strbuf *merge_names) +{ + const char *filename; + int fd, pos, npos; + struct strbuf fetch_head_file = STRBUF_INIT; + + if (!merge_names) + merge_names = &fetch_head_file; + + filename = git_path_fetch_head(); + fd = open(filename, O_RDONLY); + if (fd < 0) + die_errno(_("could not open '%s' for reading"), filename); + + if (strbuf_read(merge_names, fd, 0) < 0) + die_errno(_("could not read '%s'"), filename); + if (close(fd) < 0) + die_errno(_("could not close '%s'"), filename); + + for (pos = 0; pos < merge_names->len; pos = npos) { + unsigned char sha1[20]; + char *ptr; + struct commit *commit; + + ptr = strchr(merge_names->buf + pos, '\n'); + if (ptr) + npos = ptr - merge_names->buf + 1; + else + npos = merge_names->len; + + if (npos - pos < 40 + 2 || + get_sha1_hex(merge_names->buf + pos, sha1)) + commit = NULL; /* bad */ + else if (memcmp(merge_names->buf + pos + 40, "\t\t", 2)) + continue; /* not-for-merge */ + else { + char saved = merge_names->buf[pos + 40]; + merge_names->buf[pos + 40] = '\0'; + commit = get_merge_parent(merge_names->buf + pos); + merge_names->buf[pos + 40] = saved; + } + if (!commit) { + if (ptr) + *ptr = '\0'; + die("not something we can merge in %s: %s", + filename, merge_names->buf + pos); + } + remotes = &commit_list_insert(commit, remotes)->next; + } + + if (merge_names == &fetch_head_file) + strbuf_release(&fetch_head_file); +} + +static struct commit_list *collect_parents(struct commit *head_commit, + int *head_subsumed, + int argc, const char **argv, + struct strbuf *merge_msg) +{ + int i; + struct commit_list *remoteheads = NULL; + struct commit_list **remotes = &remoteheads; + struct strbuf merge_names = STRBUF_INIT, *autogen = NULL; + + if (merge_msg && (!have_message || shortlog_len)) + autogen = &merge_names; + + if (head_commit) + remotes = &commit_list_insert(head_commit, remotes)->next; + + if (argc == 1 && !strcmp(argv[0], "FETCH_HEAD")) { + handle_fetch_head(remotes, autogen); + remoteheads = reduce_parents(head_commit, head_subsumed, remoteheads); + } else { + for (i = 0; i < argc; i++) { + struct commit *commit = get_merge_parent(argv[i]); + if (!commit) + help_unknown_ref(argv[i], "merge", + "not something we can merge"); + remotes = &commit_list_insert(commit, remotes)->next; + } + remoteheads = reduce_parents(head_commit, head_subsumed, remoteheads); + if (autogen) { + struct commit_list *p; + for (p = remoteheads; p; p = p->next) + merge_name(merge_remote_util(p->item)->name, autogen); + } + } + + if (autogen) { + prepare_merge_message(autogen, merge_msg); + strbuf_release(autogen); + } + + return remoteheads; +} + int cmd_merge(int argc, const char **argv, const char *prefix) { unsigned char result_tree[20]; @@ -1097,11 +1176,11 @@ int cmd_merge(int argc, const char **argv, const char *prefix) struct commit *head_commit; struct strbuf buf = STRBUF_INIT; const char *head_arg; - int flag, i, ret = 0; + int i, ret = 0, head_subsumed; int best_cnt = -1, merge_was_ok = 0, automerge_was_ok = 0; struct commit_list *common = NULL; const char *best_strategy = NULL, *wt_strategy = NULL; - struct commit_list **remotes = &remoteheads; + struct commit_list *remoteheads, *p; void *branch_to_free; if (argc == 2 && !strcmp(argv[1], "-h")) @@ -1111,14 +1190,15 @@ int cmd_merge(int argc, const char **argv, const char *prefix) * Check if we are _not_ on a detached HEAD, i.e. if there is a * current branch. */ - branch = branch_to_free = resolve_refdup("HEAD", head_sha1, 0, &flag); - if (branch && !prefixcmp(branch, "refs/heads/")) + branch = branch_to_free = resolve_refdup("HEAD", 0, head_sha1, NULL); + if (branch && starts_with(branch, "refs/heads/")) branch += 11; if (!branch || is_null_sha1(head_sha1)) head_commit = NULL; else head_commit = lookup_commit_or_die(head_sha1, "HEAD"); + init_diff_ui_defaults(); git_config(git_merge_config, NULL); if (branch_mergeoptions) @@ -1135,7 +1215,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix) int nargc = 2; const char *nargv[] = {"reset", "--merge", NULL}; - if (!file_exists(git_path("MERGE_HEAD"))) + if (!file_exists(git_path_merge_head())) die(_("There is no merge to abort (MERGE_HEAD missing).")); /* Invoke 'git reset --merge' */ @@ -1146,21 +1226,21 @@ int cmd_merge(int argc, const char **argv, const char *prefix) if (read_cache_unmerged()) die_resolve_conflict("merge"); - if (file_exists(git_path("MERGE_HEAD"))) { + if (file_exists(git_path_merge_head())) { /* * There is no unmerged entry, don't advise 'git * add/rm <file>', just 'git commit'. */ if (advice_resolve_conflict) die(_("You have not concluded your merge (MERGE_HEAD exists).\n" - "Please, commit your changes before you can merge.")); + "Please, commit your changes before you merge.")); else die(_("You have not concluded your merge (MERGE_HEAD exists).")); } - if (file_exists(git_path("CHERRY_PICK_HEAD"))) { + if (file_exists(git_path_cherry_pick_head())) { if (advice_resolve_conflict) die(_("You have not concluded your cherry-pick (CHERRY_PICK_HEAD exists).\n" - "Please, commit your changes before you can merge.")); + "Please, commit your changes before you merge.")); else die(_("You have not concluded your cherry-pick (CHERRY_PICK_HEAD exists).")); } @@ -1170,67 +1250,67 @@ int cmd_merge(int argc, const char **argv, const char *prefix) show_diffstat = 0; if (squash) { - if (!allow_fast_forward) + if (fast_forward == FF_NO) die(_("You cannot combine --squash with --no-ff.")); option_commit = 0; } - if (!allow_fast_forward && fast_forward_only) - die(_("You cannot combine --no-ff with --ff-only.")); - - if (!abort_current_merge) { - if (!argc) { - if (default_to_upstream) - argc = setup_with_upstream(&argv); - else - die(_("No commit specified and merge.defaultToUpstream not set.")); - } else if (argc == 1 && !strcmp(argv[0], "-")) - argv[0] = "@{-1}"; + if (!argc) { + if (default_to_upstream) + argc = setup_with_upstream(&argv); + else + die(_("No commit specified and merge.defaultToUpstream not set.")); + } else if (argc == 1 && !strcmp(argv[0], "-")) { + argv[0] = "@{-1}"; } + if (!argc) usage_with_options(builtin_merge_usage, builtin_merge_options); - /* - * This could be traditional "merge <msg> HEAD <commit>..." and - * the way we can tell it is to see if the second token is HEAD, - * but some people might have misused the interface and used a - * committish that is the same as HEAD there instead. - * Traditional format never would have "-m" so it is an - * additional safety measure to check for it. - */ - - if (!have_message && head_commit && - is_old_style_invocation(argc, argv, head_commit->object.sha1)) { - strbuf_addstr(&merge_msg, argv[0]); - head_arg = argv[1]; - argv += 2; - argc -= 2; - } else if (!head_commit) { - struct commit *remote_head; + if (!head_commit) { /* * If the merged head is a valid one there is no reason * to forbid "git merge" into a branch yet to be born. * We do the same for "git pull". */ - if (argc != 1) - die(_("Can merge only exactly one commit into " - "empty head")); + unsigned char *remote_head_sha1; if (squash) die(_("Squash commit into empty head not supported yet")); - if (!allow_fast_forward) + if (fast_forward == FF_NO) die(_("Non-fast-forward commit does not make sense into " "an empty head")); - remote_head = get_merge_parent(argv[0]); - if (!remote_head) + remoteheads = collect_parents(head_commit, &head_subsumed, + argc, argv, NULL); + if (!remoteheads) die(_("%s - not something we can merge"), argv[0]); - read_empty(remote_head->object.sha1, 0); - update_ref("initial pull", "HEAD", remote_head->object.sha1, - NULL, 0, DIE_ON_ERR); + if (remoteheads->next) + die(_("Can merge only exactly one commit into empty head")); + remote_head_sha1 = remoteheads->item->object.oid.hash; + read_empty(remote_head_sha1, 0); + update_ref("initial pull", "HEAD", remote_head_sha1, + NULL, 0, UPDATE_REFS_DIE_ON_ERR); goto done; - } else { - struct strbuf merge_names = STRBUF_INIT; + } + /* + * This could be traditional "merge <msg> HEAD <commit>..." and + * the way we can tell it is to see if the second token is HEAD, + * but some people might have misused the interface and used a + * commit-ish that is the same as HEAD there instead. + * Traditional format never would have "-m" so it is an + * additional safety measure to check for it. + */ + if (!have_message && + is_old_style_invocation(argc, argv, head_commit->object.oid.hash)) { + warning("old-style 'git merge <msg> HEAD <commit>' is deprecated."); + strbuf_addstr(&merge_msg, argv[0]); + head_arg = argv[1]; + argv += 2; + argc -= 2; + remoteheads = collect_parents(head_commit, &head_subsumed, + argc, argv, NULL); + } else { /* We are invoked directly as the first-class UI. */ head_arg = "HEAD"; @@ -1239,50 +1319,70 @@ int cmd_merge(int argc, const char **argv, const char *prefix) * the standard merge summary message to be appended * to the given message. */ - for (i = 0; i < argc; i++) - merge_name(argv[i], &merge_names); - - if (!have_message || shortlog_len) { - struct fmt_merge_msg_opts opts; - memset(&opts, 0, sizeof(opts)); - opts.add_title = !have_message; - opts.shortlog_len = shortlog_len; - - fmt_merge_msg(&merge_names, &merge_msg, &opts); - if (merge_msg.len) - strbuf_setlen(&merge_msg, merge_msg.len - 1); - } + remoteheads = collect_parents(head_commit, &head_subsumed, + argc, argv, &merge_msg); } if (!head_commit || !argc) usage_with_options(builtin_merge_usage, builtin_merge_options); + if (verify_signatures) { + for (p = remoteheads; p; p = p->next) { + struct commit *commit = p->item; + char hex[GIT_SHA1_HEXSZ + 1]; + struct signature_check signature_check; + memset(&signature_check, 0, sizeof(signature_check)); + + check_commit_signature(commit, &signature_check); + + find_unique_abbrev_r(hex, commit->object.oid.hash, DEFAULT_ABBREV); + switch (signature_check.result) { + case 'G': + break; + case 'U': + die(_("Commit %s has an untrusted GPG signature, " + "allegedly by %s."), hex, signature_check.signer); + case 'B': + die(_("Commit %s has a bad GPG signature " + "allegedly by %s."), hex, signature_check.signer); + default: /* 'N' */ + die(_("Commit %s does not have a GPG signature."), hex); + } + if (verbosity >= 0 && signature_check.result == 'G') + printf(_("Commit %s has a good GPG signature by %s\n"), + hex, signature_check.signer); + + signature_check_clear(&signature_check); + } + } + strbuf_addstr(&buf, "merge"); - for (i = 0; i < argc; i++) - strbuf_addf(&buf, " %s", argv[i]); + for (p = remoteheads; p; p = p->next) + strbuf_addf(&buf, " %s", merge_remote_util(p->item)->name); setenv("GIT_REFLOG_ACTION", buf.buf, 0); strbuf_reset(&buf); - for (i = 0; i < argc; i++) { - struct commit *commit = get_merge_parent(argv[i]); - if (!commit) - die(_("%s - not something we can merge"), argv[i]); - remotes = &commit_list_insert(commit, remotes)->next; + for (p = remoteheads; p; p = p->next) { + struct commit *commit = p->item; strbuf_addf(&buf, "GITHEAD_%s", - sha1_to_hex(commit->object.sha1)); - setenv(buf.buf, argv[i], 1); + sha1_to_hex(commit->object.oid.hash)); + setenv(buf.buf, merge_remote_util(commit)->name, 1); strbuf_reset(&buf); - if (merge_remote_util(commit) && + if (fast_forward != FF_ONLY && + merge_remote_util(commit) && merge_remote_util(commit)->obj && - merge_remote_util(commit)->obj->type == OBJ_TAG) { - option_edit = 1; - allow_fast_forward = 0; - } + merge_remote_util(commit)->obj->type == OBJ_TAG) + fast_forward = FF_NO; } + if (option_edit < 0) + option_edit = default_edit_option(); + if (!use_strategies) { - if (!remoteheads->next) + if (!remoteheads) + ; /* already up-to-date */ + else if (!remoteheads->next) add_strategies(pull_twohead, DEFAULT_TWOHEAD); else add_strategies(pull_octopus, DEFAULT_OCTOPUS); @@ -1290,13 +1390,15 @@ int cmd_merge(int argc, const char **argv, const char *prefix) for (i = 0; i < use_strategies_nr; i++) { if (use_strategies[i]->attr & NO_FAST_FORWARD) - allow_fast_forward = 0; + fast_forward = FF_NO; if (use_strategies[i]->attr & NO_TRIVIAL) allow_trivial = 0; } - if (!remoteheads->next) - common = get_merge_bases(head_commit, remoteheads->item, 1); + if (!remoteheads) + ; /* already up-to-date */ + else if (!remoteheads->next) + common = get_merge_bases(head_commit, remoteheads->item); else { struct commit_list *list = remoteheads; commit_list_insert(head_commit, &list); @@ -1304,34 +1406,38 @@ int cmd_merge(int argc, const char **argv, const char *prefix) free(list); } - update_ref("updating ORIG_HEAD", "ORIG_HEAD", head_commit->object.sha1, - NULL, 0, DIE_ON_ERR); - - if (!common) - ; /* No common ancestors found. We need a real merge. */ - else if (!remoteheads->next && !common->next && - common->item == remoteheads->item) { + update_ref("updating ORIG_HEAD", "ORIG_HEAD", head_commit->object.oid.hash, + NULL, 0, UPDATE_REFS_DIE_ON_ERR); + + if (remoteheads && !common) { + /* No common ancestors found. */ + if (!allow_unrelated_histories) + die(_("refusing to merge unrelated histories")); + /* otherwise, we need a real merge. */ + } else if (!remoteheads || + (!remoteheads->next && !common->next && + common->item == remoteheads->item)) { /* * If head can reach all the merge then we are up to date. * but first the most common case of merging one remote. */ finish_up_to_date("Already up-to-date."); goto done; - } else if (allow_fast_forward && !remoteheads->next && + } else if (fast_forward != FF_NO && !remoteheads->next && !common->next && - !hashcmp(common->item->object.sha1, head_commit->object.sha1)) { + !hashcmp(common->item->object.oid.hash, head_commit->object.oid.hash)) { /* Again the most common case of merging one remote. */ struct strbuf msg = STRBUF_INIT; struct commit *commit; - char hex[41]; - - strcpy(hex, find_unique_abbrev(head_commit->object.sha1, DEFAULT_ABBREV)); - if (verbosity >= 0) - printf(_("Updating %s..%s\n"), - hex, - find_unique_abbrev(remoteheads->item->object.sha1, - DEFAULT_ABBREV)); + if (verbosity >= 0) { + char from[GIT_SHA1_HEXSZ + 1], to[GIT_SHA1_HEXSZ + 1]; + find_unique_abbrev_r(from, head_commit->object.oid.hash, + DEFAULT_ABBREV); + find_unique_abbrev_r(to, remoteheads->item->object.oid.hash, + DEFAULT_ABBREV); + printf(_("Updating %s..%s\n"), from, to); + } strbuf_addstr(&msg, "Fast-forward"); if (have_message) strbuf_addstr(&msg, @@ -1342,13 +1448,14 @@ int cmd_merge(int argc, const char **argv, const char *prefix) goto done; } - if (checkout_fast_forward(head_commit->object.sha1, - commit->object.sha1)) { + if (checkout_fast_forward(head_commit->object.oid.hash, + commit->object.oid.hash, + overwrite_ignore)) { ret = 1; goto done; } - finish(head_commit, commit->object.sha1, msg.buf); + finish(head_commit, remoteheads, commit->object.oid.hash, msg.buf); drop_save(); goto done; } else if (!remoteheads->next && common->next) @@ -1363,14 +1470,14 @@ int cmd_merge(int argc, const char **argv, const char *prefix) * only one common. */ refresh_cache(REFRESH_QUIET); - if (allow_trivial && !fast_forward_only) { + if (allow_trivial && fast_forward != FF_ONLY) { /* See if it is really trivial. */ - git_committer_info(IDENT_ERROR_ON_NO_NAME); + git_committer_info(IDENT_STRICT); printf(_("Trying really trivial in-index merge...\n")); - if (!read_tree_trivial(common->item->object.sha1, - head_commit->object.sha1, - remoteheads->item->object.sha1)) { - ret = merge_trivial(head_commit); + if (!read_tree_trivial(common->item->object.oid.hash, + head_commit->object.oid.hash, + remoteheads->item->object.oid.hash)) { + ret = merge_trivial(head_commit, remoteheads); goto done; } printf(_("Nope.\n")); @@ -1391,9 +1498,9 @@ int cmd_merge(int argc, const char **argv, const char *prefix) * merge_bases again, otherwise "git merge HEAD^ * HEAD^^" would be missed. */ - common_one = get_merge_bases(head_commit, j->item, 1); - if (hashcmp(common_one->item->object.sha1, - j->item->object.sha1)) { + common_one = get_merge_bases(head_commit, j->item); + if (hashcmp(common_one->item->object.oid.hash, + j->item->object.oid.hash)) { up_to_date = 0; break; } @@ -1404,11 +1511,11 @@ int cmd_merge(int argc, const char **argv, const char *prefix) } } - if (fast_forward_only) + if (fast_forward == FF_ONLY) die(_("Not possible to fast-forward, aborting.")); /* We are going to make a new commit. */ - git_committer_info(IDENT_ERROR_ON_NO_NAME); + git_committer_info(IDENT_STRICT); /* * At this point, we need a real merge. No matter what strategy @@ -1429,7 +1536,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix) int ret; if (i) { printf(_("Rewinding the tree to pristine...\n")); - restore_state(head_commit->object.sha1, stash); + restore_state(head_commit->object.oid.hash, stash); } if (use_strategies_nr != 1) printf(_("Trying merge strategy %s...\n"), @@ -1441,7 +1548,8 @@ int cmd_merge(int argc, const char **argv, const char *prefix) wt_strategy = use_strategies[i]->name; ret = try_merge_strategy(use_strategies[i]->name, - common, head_commit, head_arg); + common, remoteheads, + head_commit, head_arg); if (!option_commit && !ret) { merge_was_ok = 1; /* @@ -1483,8 +1591,9 @@ int cmd_merge(int argc, const char **argv, const char *prefix) * auto resolved the merge cleanly. */ if (automerge_was_ok) { - ret = finish_automerge(head_commit, common, result_tree, - wt_strategy); + ret = finish_automerge(head_commit, head_subsumed, + common, remoteheads, + result_tree, wt_strategy); goto done; } @@ -1493,7 +1602,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix) * it up. */ if (!best_strategy) { - restore_state(head_commit->object.sha1, stash); + restore_state(head_commit->object.oid.hash, stash); if (use_strategies_nr > 1) fprintf(stderr, _("No merge strategy handled the merge.\n")); @@ -1506,22 +1615,23 @@ int cmd_merge(int argc, const char **argv, const char *prefix) ; /* We already have its result in the working tree. */ else { printf(_("Rewinding the tree to pristine...\n")); - restore_state(head_commit->object.sha1, stash); + restore_state(head_commit->object.oid.hash, stash); printf(_("Using the %s to prepare resolving by hand.\n"), best_strategy); - try_merge_strategy(best_strategy, common, head_commit, head_arg); + try_merge_strategy(best_strategy, common, remoteheads, + head_commit, head_arg); } if (squash) - finish(head_commit, NULL, NULL); + finish(head_commit, remoteheads, NULL, NULL); else - write_merge_state(); + write_merge_state(remoteheads); if (merge_was_ok) fprintf(stderr, _("Automatic merge went well; " "stopped before committing as requested\n")); else - ret = suggest_conflicts(option_renormalize); + ret = suggest_conflicts(); done: free(branch_to_free); diff --git a/builtin/mktag.c b/builtin/mktag.c index 640ab64f41..031b750f06 100644 --- a/builtin/mktag.c +++ b/builtin/mktag.c @@ -154,7 +154,7 @@ int cmd_mktag(int argc, const char **argv, const char *prefix) unsigned char result_sha1[20]; if (argc != 1) - usage("git mktag < signaturefile"); + usage("git mktag"); if (strbuf_read(&buf, 0, 4096) < 0) { die_errno("could not read from stdin"); diff --git a/builtin/mktree.c b/builtin/mktree.c index 4ae1c412d4..4282b62c59 100644 --- a/builtin/mktree.c +++ b/builtin/mktree.c @@ -19,19 +19,17 @@ static int alloc, used; static void append_to_tree(unsigned mode, unsigned char *sha1, char *path) { struct treeent *ent; - int len = strlen(path); + size_t len = strlen(path); if (strchr(path, '/')) die("path %s contains slash", path); - if (alloc <= used) { - alloc = alloc_nr(used); - entries = xrealloc(entries, sizeof(*entries) * alloc); - } - ent = entries[used++] = xmalloc(sizeof(**entries) + len + 1); + FLEX_ALLOC_MEM(ent, name, path, len); ent->mode = mode; ent->len = len; hashcpy(ent->sha1, sha1); - memcpy(ent->name, path, len+1); + + ALLOC_GROW(entries, used + 1, alloc); + entries[used++] = ent; } static int ent_compare(const void *a_, const void *b_) @@ -64,11 +62,11 @@ static void write_tree(unsigned char *sha1) } static const char *mktree_usage[] = { - "git mktree [-z] [--missing] [--batch]", + N_("git mktree [-z] [--missing] [--batch]"), NULL }; -static void mktree_line(char *buf, size_t len, int line_termination, int allow_missing) +static void mktree_line(char *buf, size_t len, int nul_term_line, int allow_missing) { char *ptr, *ntr; unsigned mode; @@ -100,7 +98,7 @@ static void mktree_line(char *buf, size_t len, int line_termination, int allow_m *ntr++ = 0; /* now at the beginning of SHA1 */ path = ntr + 41; /* at the beginning of name */ - if (line_termination && path[0] == '"') { + if (!nul_term_line && path[0] == '"') { struct strbuf p_uq = STRBUF_INIT; if (unquote_c_style(&p_uq, path, NULL)) die("invalid quoting"); @@ -144,23 +142,25 @@ int cmd_mktree(int ac, const char **av, const char *prefix) { struct strbuf sb = STRBUF_INIT; unsigned char sha1[20]; - int line_termination = '\n'; + int nul_term_line = 0; int allow_missing = 0; int is_batch_mode = 0; int got_eof = 0; + strbuf_getline_fn getline_fn; const struct option option[] = { - OPT_SET_INT('z', NULL, &line_termination, "input is NUL terminated", '\0'), - OPT_SET_INT( 0 , "missing", &allow_missing, "allow missing objects", 1), - OPT_SET_INT( 0 , "batch", &is_batch_mode, "allow creation of more than one tree", 1), + OPT_BOOL('z', NULL, &nul_term_line, N_("input is NUL terminated")), + OPT_SET_INT( 0 , "missing", &allow_missing, N_("allow missing objects"), 1), + OPT_SET_INT( 0 , "batch", &is_batch_mode, N_("allow creation of more than one tree"), 1), OPT_END() }; ac = parse_options(ac, av, prefix, option, mktree_usage, 0); + getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf; while (!got_eof) { while (1) { - if (strbuf_getline(&sb, stdin, line_termination) == EOF) { + if (getline_fn(&sb, stdin) == EOF) { got_eof = 1; break; } @@ -170,7 +170,7 @@ int cmd_mktree(int ac, const char **av, const char *prefix) break; die("input format error: (blank line only valid in batch mode)"); } - mktree_line(sb.buf, sb.len, line_termination, allow_missing); + mktree_line(sb.buf, sb.len, nul_term_line, allow_missing); } if (is_batch_mode && got_eof && used < 1) { /* diff --git a/builtin/mv.c b/builtin/mv.c index 2a144b011c..a2014266b6 100644 --- a/builtin/mv.c +++ b/builtin/mv.c @@ -3,33 +3,40 @@ * * Copyright (C) 2006 Johannes Schindelin */ -#include "cache.h" #include "builtin.h" +#include "lockfile.h" #include "dir.h" #include "cache-tree.h" #include "string-list.h" #include "parse-options.h" +#include "submodule.h" static const char * const builtin_mv_usage[] = { - "git mv [options] <source>... <destination>", + N_("git mv [<options>] <source>... <destination>"), NULL }; -static const char **copy_pathspec(const char *prefix, const char **pathspec, - int count, int base_name) +#define DUP_BASENAME 1 +#define KEEP_TRAILING_SLASH 2 + +static const char **internal_copy_pathspec(const char *prefix, + const char **pathspec, + int count, unsigned flags) { int i; - const char **result = xmalloc((count + 1) * sizeof(const char *)); + const char **result; + ALLOC_ARRAY(result, count + 1); memcpy(result, pathspec, count * sizeof(const char *)); result[count] = NULL; for (i = 0; i < count; i++) { int length = strlen(result[i]); int to_copy = length; - while (to_copy > 0 && is_dir_sep(result[i][to_copy - 1])) + while (!(flags & KEEP_TRAILING_SLASH) && + to_copy > 0 && is_dir_sep(result[i][to_copy - 1])) to_copy--; - if (to_copy != length || base_name) { + if (to_copy != length || flags & DUP_BASENAME) { char *it = xmemdupz(result[i], to_copy); - if (base_name) { + if (flags & DUP_BASENAME) { result[i] = xstrdup(basename(it)); free(it); } else @@ -41,9 +48,9 @@ static const char **copy_pathspec(const char *prefix, const char **pathspec, static const char *add_slash(const char *path) { - int len = strlen(path); + size_t len = strlen(path); if (path[len - 1] != '/') { - char *with_slash = xmalloc(len + 2); + char *with_slash = xmalloc(st_add(len, 2)); memcpy(with_slash, path, len); with_slash[len++] = '/'; with_slash[len] = 0; @@ -53,23 +60,65 @@ static const char *add_slash(const char *path) } static struct lock_file lock_file; +#define SUBMODULE_WITH_GITDIR ((const char *)1) + +static void prepare_move_submodule(const char *src, int first, + const char **submodule_gitfile) +{ + struct strbuf submodule_dotgit = STRBUF_INIT; + if (!S_ISGITLINK(active_cache[first]->ce_mode)) + die(_("Directory %s is in index and no submodule?"), src); + if (!is_staging_gitmodules_ok()) + die(_("Please stage your changes to .gitmodules or stash them to proceed")); + strbuf_addf(&submodule_dotgit, "%s/.git", src); + *submodule_gitfile = read_gitfile(submodule_dotgit.buf); + if (*submodule_gitfile) + *submodule_gitfile = xstrdup(*submodule_gitfile); + else + *submodule_gitfile = SUBMODULE_WITH_GITDIR; + strbuf_release(&submodule_dotgit); +} + +static int index_range_of_same_dir(const char *src, int length, + int *first_p, int *last_p) +{ + const char *src_w_slash = add_slash(src); + int first, last, len_w_slash = length + 1; + + first = cache_name_pos(src_w_slash, len_w_slash); + if (first >= 0) + die(_("%.*s is in index"), len_w_slash, src_w_slash); + + first = -1 - first; + for (last = first; last < active_nr; last++) { + const char *path = active_cache[last]->name; + if (strncmp(path, src_w_slash, len_w_slash)) + break; + } + if (src_w_slash != src) + free((char *)src_w_slash); + *first_p = first; + *last_p = last; + return last - first; +} int cmd_mv(int argc, const char **argv, const char *prefix) { - int i, newfd; + int i, gitmodules_modified = 0; int verbose = 0, show_only = 0, force = 0, ignore_errors = 0; struct option builtin_mv_options[] = { - OPT__VERBOSE(&verbose, "be verbose"), - OPT__DRY_RUN(&show_only, "dry run"), - OPT__FORCE(&force, "force move/rename even if target exists"), - OPT_BOOLEAN('k', NULL, &ignore_errors, "skip move/rename errors"), + OPT__VERBOSE(&verbose, N_("be verbose")), + OPT__DRY_RUN(&show_only, N_("dry run")), + OPT__FORCE(&force, N_("force move/rename even if target exists")), + OPT_BOOL('k', NULL, &ignore_errors, N_("skip move/rename errors")), OPT_END(), }; - const char **source, **destination, **dest_path; + const char **source, **destination, **dest_path, **submodule_gitfile; enum update_mode { BOTH = 0, WORKING_DIRECTORY, INDEX } *modes; struct stat st; struct string_list src_for_dst = STRING_LIST_INIT_NODUP; + gitmodules_config(); git_config(git_default_config, NULL); argc = parse_options(argc, argv, prefix, builtin_mv_options, @@ -77,24 +126,30 @@ int cmd_mv(int argc, const char **argv, const char *prefix) if (--argc < 1) usage_with_options(builtin_mv_usage, builtin_mv_options); - newfd = hold_locked_index(&lock_file, 1); + hold_locked_index(&lock_file, 1); if (read_cache() < 0) die(_("index file corrupt")); - source = copy_pathspec(prefix, argv, argc, 0); + source = internal_copy_pathspec(prefix, argv, argc, 0); modes = xcalloc(argc, sizeof(enum update_mode)); - dest_path = copy_pathspec(prefix, argv + argc, 1, 0); + /* + * Keep trailing slash, needed to let + * "git mv file no-such-dir/" error out. + */ + dest_path = internal_copy_pathspec(prefix, argv + argc, 1, + KEEP_TRAILING_SLASH); + submodule_gitfile = xcalloc(argc, sizeof(char *)); if (dest_path[0][0] == '\0') /* special case: "." was normalized to "" */ - destination = copy_pathspec(dest_path[0], argv, argc, 1); + destination = internal_copy_pathspec(dest_path[0], argv, argc, DUP_BASENAME); else if (!lstat(dest_path[0], &st) && S_ISDIR(st.st_mode)) { dest_path[0] = add_slash(dest_path[0]); - destination = copy_pathspec(dest_path[0], argv, argc, 1); + destination = internal_copy_pathspec(dest_path[0], argv, argc, DUP_BASENAME); } else { if (argc != 1) - die("destination '%s' is not a directory", dest_path[0]); + die(_("destination '%s' is not a directory"), dest_path[0]); destination = dest_path; } @@ -117,59 +172,41 @@ int cmd_mv(int argc, const char **argv, const char *prefix) && lstat(dst, &st) == 0) bad = _("cannot move directory over file"); else if (src_is_dir) { - const char *src_w_slash = add_slash(src); - int len_w_slash = length + 1; - int first, last; - - modes[i] = WORKING_DIRECTORY; + int first = cache_name_pos(src, length), last; - first = cache_name_pos(src_w_slash, len_w_slash); if (first >= 0) - die (_("Huh? %.*s is in index?"), - len_w_slash, src_w_slash); - - first = -1 - first; - for (last = first; last < active_nr; last++) { - const char *path = active_cache[last]->name; - if (strncmp(path, src_w_slash, len_w_slash)) - break; - } - free((char *)src_w_slash); - - if (last - first < 1) + prepare_move_submodule(src, first, + submodule_gitfile + i); + else if (index_range_of_same_dir(src, length, + &first, &last) < 1) bad = _("source directory is empty"); - else { - int j, dst_len; - - if (last - first > 0) { - source = xrealloc(source, - (argc + last - first) - * sizeof(char *)); - destination = xrealloc(destination, - (argc + last - first) - * sizeof(char *)); - modes = xrealloc(modes, - (argc + last - first) - * sizeof(enum update_mode)); - } + else { /* last - first >= 1 */ + int j, dst_len, n; + + modes[i] = WORKING_DIRECTORY; + n = argc + last - first; + REALLOC_ARRAY(source, n); + REALLOC_ARRAY(destination, n); + REALLOC_ARRAY(modes, n); + REALLOC_ARRAY(submodule_gitfile, n); dst = add_slash(dst); dst_len = strlen(dst); for (j = 0; j < last - first; j++) { - const char *path = - active_cache[first + j]->name; + const char *path = active_cache[first + j]->name; source[argc + j] = path; destination[argc + j] = - prefix_path(dst, dst_len, - path + length + 1); + prefix_path(dst, dst_len, path + length + 1); modes[argc + j] = INDEX; + submodule_gitfile[argc + j] = NULL; } argc += last - first; } } else if (cache_name_pos(src, length) < 0) bad = _("not under version control"); - else if (lstat(dst, &st) == 0) { + else if (lstat(dst, &st) == 0 && + (!ignore_case || strcasecmp(src, dst))) { bad = _("destination exists"); if (force) { /* @@ -185,22 +222,27 @@ int cmd_mv(int argc, const char **argv, const char *prefix) } } else if (string_list_has_string(&src_for_dst, dst)) bad = _("multiple sources for the same target"); + else if (is_dir_sep(dst[strlen(dst) - 1])) + bad = _("destination directory does not exist"); else string_list_insert(&src_for_dst, dst); - if (bad) { - if (ignore_errors) { - if (--argc > 0) { - memmove(source + i, source + i + 1, - (argc - i) * sizeof(char *)); - memmove(destination + i, - destination + i + 1, - (argc - i) * sizeof(char *)); - i--; - } - } else - die (_("%s, source=%s, destination=%s"), - bad, src, dst); + if (!bad) + continue; + if (!ignore_errors) + die(_("%s, source=%s, destination=%s"), + bad, src, dst); + if (--argc > 0) { + int n = argc - i; + memmove(source + i, source + i + 1, + n * sizeof(char *)); + memmove(destination + i, destination + i + 1, + n * sizeof(char *)); + memmove(modes + i, modes + i + 1, + n * sizeof(enum update_mode)); + memmove(submodule_gitfile + i, submodule_gitfile + i + 1, + n * sizeof(char *)); + i--; } } @@ -210,9 +252,19 @@ int cmd_mv(int argc, const char **argv, const char *prefix) int pos; if (show_only || verbose) printf(_("Renaming %s to %s\n"), src, dst); - if (!show_only && mode != INDEX && - rename(src, dst) < 0 && !ignore_errors) - die_errno (_("renaming '%s' failed"), src); + if (show_only) + continue; + if (mode != INDEX && rename(src, dst) < 0) { + if (ignore_errors) + continue; + die_errno(_("renaming '%s' failed"), src); + } + if (submodule_gitfile[i]) { + if (submodule_gitfile[i] != SUBMODULE_WITH_GITDIR) + connect_work_tree_and_git_dir(dst, submodule_gitfile[i]); + if (!update_path_in_gitmodules(src, dst)) + gitmodules_modified = 1; + } if (mode == WORKING_DIRECTORY) continue; @@ -223,11 +275,12 @@ int cmd_mv(int argc, const char **argv, const char *prefix) rename_cache_entry_at(pos, dst); } - if (active_cache_changed) { - if (write_cache(newfd, active_cache, active_nr) || - commit_locked_index(&lock_file)) - die(_("Unable to write new index file")); - } + if (gitmodules_modified) + stage_updated_gitmodules(); + + if (active_cache_changed && + write_locked_index(&the_index, &lock_file, COMMIT_LOCK)) + die(_("Unable to write new index file")); return 0; } diff --git a/builtin/name-rev.c b/builtin/name-rev.c index 1b374583c2..57be35faf5 100644 --- a/builtin/name-rev.c +++ b/builtin/name-rev.c @@ -4,11 +4,13 @@ #include "tag.h" #include "refs.h" #include "parse-options.h" +#include "sha1-lookup.h" #define CUTOFF_DATE_SLOP 86400 /* one day */ typedef struct rev_name { const char *tip_name; + unsigned long taggerdate; int generation; int distance; } rev_name; @@ -19,24 +21,21 @@ static long cutoff = LONG_MAX; #define MERGE_TRAVERSAL_WEIGHT 65535 static void name_rev(struct commit *commit, - const char *tip_name, int generation, int distance, + const char *tip_name, unsigned long taggerdate, + int generation, int distance, int deref) { struct rev_name *name = (struct rev_name *)commit->util; struct commit_list *parents; int parent_number = 1; - if (!commit->object.parsed) - parse_commit(commit); + parse_commit(commit); if (commit->date < cutoff) return; if (deref) { - char *new_name = xmalloc(strlen(tip_name)+3); - strcpy(new_name, tip_name); - strcat(new_name, "^0"); - tip_name = new_name; + tip_name = xstrfmt("%s^0", tip_name); if (generation) die("generation: %d, but deref?", generation); @@ -46,9 +45,12 @@ static void name_rev(struct commit *commit, name = xmalloc(sizeof(rev_name)); commit->util = name; goto copy_data; - } else if (name->distance > distance) { + } else if (name->taggerdate > taggerdate || + (name->taggerdate == taggerdate && + name->distance > distance)) { copy_data: name->tip_name = tip_name; + name->taggerdate = taggerdate; name->generation = generation; name->distance = distance; } else @@ -58,72 +60,153 @@ copy_data: parents; parents = parents->next, parent_number++) { if (parent_number > 1) { - int len = strlen(tip_name); - char *new_name = xmalloc(len + - 1 + decimal_length(generation) + /* ~<n> */ - 1 + 2 + /* ^NN */ - 1); - - if (len > 2 && !strcmp(tip_name + len - 2, "^0")) - len -= 2; + size_t len; + char *new_name; + + strip_suffix(tip_name, "^0", &len); if (generation > 0) - sprintf(new_name, "%.*s~%d^%d", len, tip_name, - generation, parent_number); + new_name = xstrfmt("%.*s~%d^%d", (int)len, tip_name, + generation, parent_number); else - sprintf(new_name, "%.*s^%d", len, tip_name, - parent_number); + new_name = xstrfmt("%.*s^%d", (int)len, tip_name, + parent_number); - name_rev(parents->item, new_name, 0, + name_rev(parents->item, new_name, taggerdate, 0, distance + MERGE_TRAVERSAL_WEIGHT, 0); } else { - name_rev(parents->item, tip_name, generation + 1, - distance + 1, 0); + name_rev(parents->item, tip_name, taggerdate, + generation + 1, distance + 1, 0); } } } +static int subpath_matches(const char *path, const char *filter) +{ + const char *subpath = path; + + while (subpath) { + if (!wildmatch(filter, subpath, 0, NULL)) + return subpath - path; + subpath = strchr(subpath, '/'); + if (subpath) + subpath++; + } + return -1; +} + +static const char *name_ref_abbrev(const char *refname, int shorten_unambiguous) +{ + if (shorten_unambiguous) + refname = shorten_unambiguous_ref(refname, 0); + else if (starts_with(refname, "refs/heads/")) + refname = refname + 11; + else if (starts_with(refname, "refs/")) + refname = refname + 5; + return refname; +} + struct name_ref_data { int tags_only; int name_only; const char *ref_filter; }; -static int name_ref(const char *path, const unsigned char *sha1, int flags, void *cb_data) +static struct tip_table { + struct tip_table_entry { + unsigned char sha1[20]; + const char *refname; + } *table; + int nr; + int alloc; + int sorted; +} tip_table; + +static void add_to_tip_table(const unsigned char *sha1, const char *refname, + int shorten_unambiguous) { - struct object *o = parse_object(sha1); + refname = name_ref_abbrev(refname, shorten_unambiguous); + + ALLOC_GROW(tip_table.table, tip_table.nr + 1, tip_table.alloc); + hashcpy(tip_table.table[tip_table.nr].sha1, sha1); + tip_table.table[tip_table.nr].refname = xstrdup(refname); + tip_table.nr++; + tip_table.sorted = 0; +} + +static int tipcmp(const void *a_, const void *b_) +{ + const struct tip_table_entry *a = a_, *b = b_; + return hashcmp(a->sha1, b->sha1); +} + +static int name_ref(const char *path, const struct object_id *oid, int flags, void *cb_data) +{ + struct object *o = parse_object(oid->hash); struct name_ref_data *data = cb_data; + int can_abbreviate_output = data->tags_only && data->name_only; int deref = 0; + unsigned long taggerdate = ULONG_MAX; - if (data->tags_only && prefixcmp(path, "refs/tags/")) + if (data->tags_only && !starts_with(path, "refs/tags/")) return 0; - if (data->ref_filter && fnmatch(data->ref_filter, path, 0)) - return 0; + if (data->ref_filter) { + switch (subpath_matches(path, data->ref_filter)) { + case -1: /* did not match */ + return 0; + case 0: /* matched fully */ + break; + default: /* matched subpath */ + can_abbreviate_output = 1; + break; + } + } + + add_to_tip_table(oid->hash, path, can_abbreviate_output); while (o && o->type == OBJ_TAG) { struct tag *t = (struct tag *) o; if (!t->tagged) break; /* broken repository */ - o = parse_object(t->tagged->sha1); + o = parse_object(t->tagged->oid.hash); deref = 1; + taggerdate = t->date; } if (o && o->type == OBJ_COMMIT) { struct commit *commit = (struct commit *)o; - if (!prefixcmp(path, "refs/heads/")) - path = path + 11; - else if (data->tags_only - && data->name_only - && !prefixcmp(path, "refs/tags/")) - path = path + 10; - else if (!prefixcmp(path, "refs/")) - path = path + 5; - - name_rev(commit, xstrdup(path), 0, 0, deref); + path = name_ref_abbrev(path, can_abbreviate_output); + name_rev(commit, xstrdup(path), taggerdate, 0, 0, deref); } return 0; } +static const unsigned char *nth_tip_table_ent(size_t ix, void *table_) +{ + struct tip_table_entry *table = table_; + return table[ix].sha1; +} + +static const char *get_exact_ref_match(const struct object *o) +{ + int found; + + if (!tip_table.table || !tip_table.nr) + return NULL; + + if (!tip_table.sorted) { + qsort(tip_table.table, tip_table.nr, sizeof(*tip_table.table), + tipcmp); + tip_table.sorted = 1; + } + + found = sha1_pos(o->oid.hash, tip_table.table, tip_table.nr, + nth_tip_table_ent); + if (0 <= found) + return tip_table.table[found].refname; + return NULL; +} + /* returns a static buffer */ static const char *get_rev_name(const struct object *o) { @@ -132,7 +215,7 @@ static const char *get_rev_name(const struct object *o) struct commit *c; if (o->type != OBJ_COMMIT) - return NULL; + return get_exact_ref_match(o); c = (struct commit *) o; n = c->util; if (!n) @@ -156,25 +239,25 @@ static void show_name(const struct object *obj, int always, int allow_undefined, int name_only) { const char *name; - const unsigned char *sha1 = obj->sha1; + const struct object_id *oid = &obj->oid; if (!name_only) - printf("%s ", caller_name ? caller_name : sha1_to_hex(sha1)); + printf("%s ", caller_name ? caller_name : oid_to_hex(oid)); name = get_rev_name(obj); if (name) printf("%s\n", name); else if (allow_undefined) printf("undefined\n"); else if (always) - printf("%s\n", find_unique_abbrev(sha1, DEFAULT_ABBREV)); + printf("%s\n", find_unique_abbrev(oid->hash, DEFAULT_ABBREV)); else - die("cannot describe '%s'", sha1_to_hex(sha1)); + die("cannot describe '%s'", oid_to_hex(oid)); } static char const * const name_rev_usage[] = { - "git name-rev [options] <commit>...", - "git name-rev [options] --all", - "git name-rev [options] --stdin", + N_("git name-rev [<options>] <commit>..."), + N_("git name-rev [<options>] --all"), + N_("git name-rev [<options>] --stdin"), NULL }; @@ -223,25 +306,31 @@ static void name_rev_line(char *p, struct name_ref_data *data) int cmd_name_rev(int argc, const char **argv, const char *prefix) { struct object_array revs = OBJECT_ARRAY_INIT; - int all = 0, transform_stdin = 0, allow_undefined = 1, always = 0; + int all = 0, transform_stdin = 0, allow_undefined = 1, always = 0, peel_tag = 0; struct name_ref_data data = { 0, 0, NULL }; struct option opts[] = { - OPT_BOOLEAN(0, "name-only", &data.name_only, "print only names (no SHA-1)"), - OPT_BOOLEAN(0, "tags", &data.tags_only, "only use tags to name the commits"), - OPT_STRING(0, "refs", &data.ref_filter, "pattern", - "only use refs matching <pattern>"), + OPT_BOOL(0, "name-only", &data.name_only, N_("print only names (no SHA-1)")), + OPT_BOOL(0, "tags", &data.tags_only, N_("only use tags to name the commits")), + OPT_STRING(0, "refs", &data.ref_filter, N_("pattern"), + N_("only use refs matching <pattern>")), OPT_GROUP(""), - OPT_BOOLEAN(0, "all", &all, "list all commits reachable from all refs"), - OPT_BOOLEAN(0, "stdin", &transform_stdin, "read from stdin"), - OPT_BOOLEAN(0, "undefined", &allow_undefined, "allow to print `undefined` names"), - OPT_BOOLEAN(0, "always", &always, - "show abbreviated commit object as fallback"), + OPT_BOOL(0, "all", &all, N_("list all commits reachable from all refs")), + OPT_BOOL(0, "stdin", &transform_stdin, N_("read from stdin")), + OPT_BOOL(0, "undefined", &allow_undefined, N_("allow to print `undefined` names (default)")), + OPT_BOOL(0, "always", &always, + N_("show abbreviated commit object as fallback")), + { + /* A Hidden OPT_BOOL */ + OPTION_SET_INT, 0, "peel-tag", &peel_tag, NULL, + N_("dereference tags in the input (internal use)"), + PARSE_OPT_NOARG | PARSE_OPT_HIDDEN, NULL, 1, + }, OPT_END(), }; git_config(git_default_config, NULL); argc = parse_options(argc, argv, prefix, opts, name_rev_usage, 0); - if (!!all + !!transform_stdin + !!argc > 1) { + if (all + transform_stdin + !!argc > 1) { error("Specify either a list, or --all, not both!"); usage_with_options(name_rev_usage, opts); } @@ -250,7 +339,7 @@ int cmd_name_rev(int argc, const char **argv, const char *prefix) for (; argc; argc--, argv++) { unsigned char sha1[20]; - struct object *o; + struct object *object; struct commit *commit; if (get_sha1(*argv, sha1)) { @@ -259,17 +348,34 @@ int cmd_name_rev(int argc, const char **argv, const char *prefix) continue; } - o = deref_tag(parse_object(sha1), *argv, 0); - if (!o || o->type != OBJ_COMMIT) { - fprintf(stderr, "Could not get commit for %s. Skipping.\n", + commit = NULL; + object = parse_object(sha1); + if (object) { + struct object *peeled = deref_tag(object, *argv, 0); + if (peeled && peeled->type == OBJ_COMMIT) + commit = (struct commit *)peeled; + } + + if (!object) { + fprintf(stderr, "Could not get object for %s. Skipping.\n", *argv); continue; } - commit = (struct commit *)o; - if (cutoff > commit->date) - cutoff = commit->date; - add_object_array((struct object *)commit, *argv, &revs); + if (commit) { + if (cutoff > commit->date) + cutoff = commit->date; + } + + if (peel_tag) { + if (!commit) { + fprintf(stderr, "Could not get commit for %s. Skipping.\n", + *argv); + continue; + } + object = (struct object *)commit; + } + add_object_array(object, *argv, &revs); } if (cutoff) diff --git a/builtin/notes.c b/builtin/notes.c index 3644d140ec..c65b59ad9a 100644 --- a/builtin/notes.c +++ b/builtin/notes.c @@ -4,7 +4,7 @@ * Copyright (c) 2010 Johan Herland <johan@herland.net> * * Based on git-notes.sh by Johannes Schindelin, - * and builtin-tag.c by Kristian Høgsberg and Carlos Rica. + * and builtin/tag.c by Kristian Høgsberg and Carlos Rica. */ #include "cache.h" @@ -18,88 +18,97 @@ #include "parse-options.h" #include "string-list.h" #include "notes-merge.h" +#include "notes-utils.h" +#include "worktree.h" static const char * const git_notes_usage[] = { - "git notes [--ref <notes_ref>] [list [<object>]]", - "git notes [--ref <notes_ref>] add [-f] [-m <msg> | -F <file> | (-c | -C) <object>] [<object>]", - "git notes [--ref <notes_ref>] copy [-f] <from-object> <to-object>", - "git notes [--ref <notes_ref>] append [-m <msg> | -F <file> | (-c | -C) <object>] [<object>]", - "git notes [--ref <notes_ref>] edit [<object>]", - "git notes [--ref <notes_ref>] show [<object>]", - "git notes [--ref <notes_ref>] merge [-v | -q] [-s <strategy> ] <notes_ref>", - "git notes merge --commit [-v | -q]", - "git notes merge --abort [-v | -q]", - "git notes [--ref <notes_ref>] remove [<object>...]", - "git notes [--ref <notes_ref>] prune [-n | -v]", - "git notes [--ref <notes_ref>] get-ref", + N_("git notes [--ref <notes-ref>] [list [<object>]]"), + N_("git notes [--ref <notes-ref>] add [-f] [--allow-empty] [-m <msg> | -F <file> | (-c | -C) <object>] [<object>]"), + N_("git notes [--ref <notes-ref>] copy [-f] <from-object> <to-object>"), + N_("git notes [--ref <notes-ref>] append [--allow-empty] [-m <msg> | -F <file> | (-c | -C) <object>] [<object>]"), + N_("git notes [--ref <notes-ref>] edit [--allow-empty] [<object>]"), + N_("git notes [--ref <notes-ref>] show [<object>]"), + N_("git notes [--ref <notes-ref>] merge [-v | -q] [-s <strategy>] <notes-ref>"), + N_("git notes merge --commit [-v | -q]"), + N_("git notes merge --abort [-v | -q]"), + N_("git notes [--ref <notes-ref>] remove [<object>...]"), + N_("git notes [--ref <notes-ref>] prune [-n | -v]"), + N_("git notes [--ref <notes-ref>] get-ref"), NULL }; static const char * const git_notes_list_usage[] = { - "git notes [list [<object>]]", + N_("git notes [list [<object>]]"), NULL }; static const char * const git_notes_add_usage[] = { - "git notes add [<options>] [<object>]", + N_("git notes add [<options>] [<object>]"), NULL }; static const char * const git_notes_copy_usage[] = { - "git notes copy [<options>] <from-object> <to-object>", - "git notes copy --stdin [<from-object> <to-object>]...", + N_("git notes copy [<options>] <from-object> <to-object>"), + N_("git notes copy --stdin [<from-object> <to-object>]..."), NULL }; static const char * const git_notes_append_usage[] = { - "git notes append [<options>] [<object>]", + N_("git notes append [<options>] [<object>]"), NULL }; static const char * const git_notes_edit_usage[] = { - "git notes edit [<object>]", + N_("git notes edit [<object>]"), NULL }; static const char * const git_notes_show_usage[] = { - "git notes show [<object>]", + N_("git notes show [<object>]"), NULL }; static const char * const git_notes_merge_usage[] = { - "git notes merge [<options>] <notes_ref>", - "git notes merge --commit [<options>]", - "git notes merge --abort [<options>]", + N_("git notes merge [<options>] <notes-ref>"), + N_("git notes merge --commit [<options>]"), + N_("git notes merge --abort [<options>]"), NULL }; static const char * const git_notes_remove_usage[] = { - "git notes remove [<object>]", + N_("git notes remove [<object>]"), NULL }; static const char * const git_notes_prune_usage[] = { - "git notes prune [<options>]", + N_("git notes prune [<options>]"), NULL }; static const char * const git_notes_get_ref_usage[] = { - "git notes get-ref", + N_("git notes get-ref"), NULL }; static const char note_template[] = - "\n" - "#\n" - "# Write/edit the notes for the following object:\n" - "#\n"; + "\nWrite/edit the notes for the following object:\n"; -struct msg_arg { +struct note_data { int given; int use_editor; + char *edit_path; struct strbuf buf; }; +static void free_note_data(struct note_data *d) +{ + if (d->edit_path) { + unlink_or_warn(d->edit_path); + free(d->edit_path); + } + strbuf_release(&d->buf); +} + static int list_each_note(const unsigned char *object_sha1, const unsigned char *note_sha1, char *note_path, void *cb_data) @@ -108,7 +117,7 @@ static int list_each_note(const unsigned char *object_sha1, return 0; } -static void write_note_data(int fd, const unsigned char *sha1) +static void copy_obj_to_fd(int fd, const unsigned char *sha1) { unsigned long size; enum object_type type; @@ -124,12 +133,11 @@ static void write_commented_object(int fd, const unsigned char *object) { const char *show_args[5] = {"show", "--stat", "--no-notes", sha1_to_hex(object), NULL}; - struct child_process show; + struct child_process show = CHILD_PROCESS_INIT; struct strbuf buf = STRBUF_INIT; - FILE *show_out; + struct strbuf cbuf = STRBUF_INIT; /* Invoke "git show --stat --no-notes $object" */ - memset(&show, 0, sizeof(show)); show.argv = show_args; show.no_stdin = 1; show.out = -1; @@ -139,299 +147,150 @@ static void write_commented_object(int fd, const unsigned char *object) die(_("unable to start 'show' for object '%s'"), sha1_to_hex(object)); - /* Open the output as FILE* so strbuf_getline() can be used. */ - show_out = xfdopen(show.out, "r"); - if (show_out == NULL) - die_errno(_("can't fdopen 'show' output fd")); + if (strbuf_read(&buf, show.out, 0) < 0) + die_errno(_("could not read 'show' output")); + strbuf_add_commented_lines(&cbuf, buf.buf, buf.len); + write_or_die(fd, cbuf.buf, cbuf.len); - /* Prepend "# " to each output line and write result to 'fd' */ - while (strbuf_getline(&buf, show_out, '\n') != EOF) { - write_or_die(fd, "# ", 2); - write_or_die(fd, buf.buf, buf.len); - write_or_die(fd, "\n", 1); - } + strbuf_release(&cbuf); strbuf_release(&buf); - if (fclose(show_out)) - die_errno(_("failed to close pipe to 'show' for object '%s'"), - sha1_to_hex(object)); + if (finish_command(&show)) die(_("failed to finish 'show' for object '%s'"), sha1_to_hex(object)); } -static void create_note(const unsigned char *object, struct msg_arg *msg, - int append_only, const unsigned char *prev, - unsigned char *result) +static void prepare_note_data(const unsigned char *object, struct note_data *d, + const unsigned char *old_note) { - char *path = NULL; - - if (msg->use_editor || !msg->given) { + if (d->use_editor || !d->given) { int fd; + struct strbuf buf = STRBUF_INIT; /* write the template message before editing: */ - path = git_pathdup("NOTES_EDITMSG"); - fd = open(path, O_CREAT | O_TRUNC | O_WRONLY, 0600); + d->edit_path = git_pathdup("NOTES_EDITMSG"); + fd = open(d->edit_path, O_CREAT | O_TRUNC | O_WRONLY, 0600); if (fd < 0) - die_errno(_("could not create file '%s'"), path); + die_errno(_("could not create file '%s'"), d->edit_path); + + if (d->given) + write_or_die(fd, d->buf.buf, d->buf.len); + else if (old_note) + copy_obj_to_fd(fd, old_note); - if (msg->given) - write_or_die(fd, msg->buf.buf, msg->buf.len); - else if (prev && !append_only) - write_note_data(fd, prev); - write_or_die(fd, note_template, strlen(note_template)); + strbuf_addch(&buf, '\n'); + strbuf_add_commented_lines(&buf, note_template, strlen(note_template)); + strbuf_addch(&buf, '\n'); + write_or_die(fd, buf.buf, buf.len); write_commented_object(fd, object); close(fd); - strbuf_reset(&(msg->buf)); + strbuf_release(&buf); + strbuf_reset(&d->buf); - if (launch_editor(path, &(msg->buf), NULL)) { - die(_("Please supply the note contents using either -m" \ - " or -F option")); - } - stripspace(&(msg->buf), 1); - } - - if (prev && append_only) { - /* Append buf to previous note contents */ - unsigned long size; - enum object_type type; - char *prev_buf = read_sha1_file(prev, &type, &size); - - strbuf_grow(&(msg->buf), size + 1); - if (msg->buf.len && prev_buf && size) - strbuf_insert(&(msg->buf), 0, "\n", 1); - if (prev_buf && size) - strbuf_insert(&(msg->buf), 0, prev_buf, size); - free(prev_buf); - } - - if (!msg->buf.len) { - fprintf(stderr, _("Removing note for object %s\n"), - sha1_to_hex(object)); - hashclr(result); - } else { - if (write_sha1_file(msg->buf.buf, msg->buf.len, blob_type, result)) { - error(_("unable to write note object")); - if (path) - error(_("The note contents has been left in %s"), - path); - exit(128); + if (launch_editor(d->edit_path, &d->buf, NULL)) { + die(_("Please supply the note contents using either -m or -F option")); } + strbuf_stripspace(&d->buf, 1); } +} - if (path) { - unlink_or_warn(path); - free(path); +static void write_note_data(struct note_data *d, unsigned char *sha1) +{ + if (write_sha1_file(d->buf.buf, d->buf.len, blob_type, sha1)) { + error(_("unable to write note object")); + if (d->edit_path) + error(_("The note contents have been left in %s"), + d->edit_path); + exit(128); } } static int parse_msg_arg(const struct option *opt, const char *arg, int unset) { - struct msg_arg *msg = opt->value; + struct note_data *d = opt->value; - strbuf_grow(&(msg->buf), strlen(arg) + 2); - if (msg->buf.len) - strbuf_addch(&(msg->buf), '\n'); - strbuf_addstr(&(msg->buf), arg); - stripspace(&(msg->buf), 0); + strbuf_grow(&d->buf, strlen(arg) + 2); + if (d->buf.len) + strbuf_addch(&d->buf, '\n'); + strbuf_addstr(&d->buf, arg); + strbuf_stripspace(&d->buf, 0); - msg->given = 1; + d->given = 1; return 0; } static int parse_file_arg(const struct option *opt, const char *arg, int unset) { - struct msg_arg *msg = opt->value; + struct note_data *d = opt->value; - if (msg->buf.len) - strbuf_addch(&(msg->buf), '\n'); + if (d->buf.len) + strbuf_addch(&d->buf, '\n'); if (!strcmp(arg, "-")) { - if (strbuf_read(&(msg->buf), 0, 1024) < 0) + if (strbuf_read(&d->buf, 0, 1024) < 0) die_errno(_("cannot read '%s'"), arg); - } else if (strbuf_read_file(&(msg->buf), arg, 1024) < 0) + } else if (strbuf_read_file(&d->buf, arg, 1024) < 0) die_errno(_("could not open or read '%s'"), arg); - stripspace(&(msg->buf), 0); + strbuf_stripspace(&d->buf, 0); - msg->given = 1; + d->given = 1; return 0; } static int parse_reuse_arg(const struct option *opt, const char *arg, int unset) { - struct msg_arg *msg = opt->value; + struct note_data *d = opt->value; char *buf; unsigned char object[20]; enum object_type type; unsigned long len; - if (msg->buf.len) - strbuf_addch(&(msg->buf), '\n'); + if (d->buf.len) + strbuf_addch(&d->buf, '\n'); if (get_sha1(arg, object)) die(_("Failed to resolve '%s' as a valid ref."), arg); - if (!(buf = read_sha1_file(object, &type, &len)) || !len) { + if (!(buf = read_sha1_file(object, &type, &len))) { free(buf); - die(_("Failed to read object '%s'."), arg);; + die(_("Failed to read object '%s'."), arg); } - strbuf_add(&(msg->buf), buf, len); + if (type != OBJ_BLOB) { + free(buf); + die(_("Cannot read note data from non-blob object '%s'."), arg); + } + strbuf_add(&d->buf, buf, len); free(buf); - msg->given = 1; + d->given = 1; return 0; } static int parse_reedit_arg(const struct option *opt, const char *arg, int unset) { - struct msg_arg *msg = opt->value; - msg->use_editor = 1; + struct note_data *d = opt->value; + d->use_editor = 1; return parse_reuse_arg(opt, arg, unset); } -void commit_notes(struct notes_tree *t, const char *msg) -{ - struct strbuf buf = STRBUF_INIT; - unsigned char commit_sha1[20]; - - if (!t) - t = &default_notes_tree; - if (!t->initialized || !t->ref || !*t->ref) - die(_("Cannot commit uninitialized/unreferenced notes tree")); - if (!t->dirty) - return; /* don't have to commit an unchanged tree */ - - /* Prepare commit message and reflog message */ - strbuf_addstr(&buf, msg); - if (buf.buf[buf.len - 1] != '\n') - strbuf_addch(&buf, '\n'); /* Make sure msg ends with newline */ - - create_notes_commit(t, NULL, &buf, commit_sha1); - strbuf_insert(&buf, 0, "notes: ", 7); /* commit message starts at index 7 */ - update_ref(buf.buf, t->ref, commit_sha1, NULL, 0, DIE_ON_ERR); - - strbuf_release(&buf); -} - -combine_notes_fn parse_combine_notes_fn(const char *v) -{ - if (!strcasecmp(v, "overwrite")) - return combine_notes_overwrite; - else if (!strcasecmp(v, "ignore")) - return combine_notes_ignore; - else if (!strcasecmp(v, "concatenate")) - return combine_notes_concatenate; - else if (!strcasecmp(v, "cat_sort_uniq")) - return combine_notes_cat_sort_uniq; - else - return NULL; -} - -static int notes_rewrite_config(const char *k, const char *v, void *cb) -{ - struct notes_rewrite_cfg *c = cb; - if (!prefixcmp(k, "notes.rewrite.") && !strcmp(k+14, c->cmd)) { - c->enabled = git_config_bool(k, v); - return 0; - } else if (!c->mode_from_env && !strcmp(k, "notes.rewritemode")) { - if (!v) - config_error_nonbool(k); - c->combine = parse_combine_notes_fn(v); - if (!c->combine) { - error(_("Bad notes.rewriteMode value: '%s'"), v); - return 1; - } - return 0; - } else if (!c->refs_from_env && !strcmp(k, "notes.rewriteref")) { - /* note that a refs/ prefix is implied in the - * underlying for_each_glob_ref */ - if (!prefixcmp(v, "refs/notes/")) - string_list_add_refs_by_glob(c->refs, v); - else - warning(_("Refusing to rewrite notes in %s" - " (outside of refs/notes/)"), v); - return 0; - } - - return 0; -} - - -struct notes_rewrite_cfg *init_copy_notes_for_rewrite(const char *cmd) -{ - struct notes_rewrite_cfg *c = xmalloc(sizeof(struct notes_rewrite_cfg)); - const char *rewrite_mode_env = getenv(GIT_NOTES_REWRITE_MODE_ENVIRONMENT); - const char *rewrite_refs_env = getenv(GIT_NOTES_REWRITE_REF_ENVIRONMENT); - c->cmd = cmd; - c->enabled = 1; - c->combine = combine_notes_concatenate; - c->refs = xcalloc(1, sizeof(struct string_list)); - c->refs->strdup_strings = 1; - c->refs_from_env = 0; - c->mode_from_env = 0; - if (rewrite_mode_env) { - c->mode_from_env = 1; - c->combine = parse_combine_notes_fn(rewrite_mode_env); - if (!c->combine) - /* TRANSLATORS: The first %s is the name of the - environment variable, the second %s is its value */ - error(_("Bad %s value: '%s'"), GIT_NOTES_REWRITE_MODE_ENVIRONMENT, - rewrite_mode_env); - } - if (rewrite_refs_env) { - c->refs_from_env = 1; - string_list_add_refs_from_colon_sep(c->refs, rewrite_refs_env); - } - git_config(notes_rewrite_config, c); - if (!c->enabled || !c->refs->nr) { - string_list_clear(c->refs, 0); - free(c->refs); - free(c); - return NULL; - } - c->trees = load_notes_trees(c->refs); - string_list_clear(c->refs, 0); - free(c->refs); - return c; -} - -int copy_note_for_rewrite(struct notes_rewrite_cfg *c, - const unsigned char *from_obj, const unsigned char *to_obj) -{ - int ret = 0; - int i; - for (i = 0; c->trees[i]; i++) - ret = copy_note(c->trees[i], from_obj, to_obj, 1, c->combine) || ret; - return ret; -} - -void finish_copy_notes_for_rewrite(struct notes_rewrite_cfg *c) -{ - int i; - for (i = 0; c->trees[i]; i++) { - commit_notes(c->trees[i], "Notes added by 'git notes copy'"); - free_notes(c->trees[i]); - } - free(c->trees); - free(c); -} - static int notes_copy_from_stdin(int force, const char *rewrite_cmd) { struct strbuf buf = STRBUF_INIT; struct notes_rewrite_cfg *c = NULL; struct notes_tree *t = NULL; int ret = 0; + const char *msg = "Notes added by 'git notes copy'"; if (rewrite_cmd) { c = init_copy_notes_for_rewrite(rewrite_cmd); if (!c) return 0; } else { - init_notes(NULL, NULL, NULL, 0); + init_notes(NULL, NULL, NULL, NOTES_INIT_WRITABLE); t = &default_notes_tree; } - while (strbuf_getline(&buf, stdin, '\n') != EOF) { + while (strbuf_getline_lf(&buf, stdin) != EOF) { unsigned char from_obj[20], to_obj[20]; struct strbuf **split; int err; @@ -462,23 +321,26 @@ static int notes_copy_from_stdin(int force, const char *rewrite_cmd) } if (!rewrite_cmd) { - commit_notes(t, "Notes added by 'git notes copy'"); + commit_notes(t, msg); free_notes(t); } else { - finish_copy_notes_for_rewrite(c); + finish_copy_notes_for_rewrite(c, msg); } return ret; } -static struct notes_tree *init_notes_check(const char *subcommand) +static struct notes_tree *init_notes_check(const char *subcommand, + int flags) { struct notes_tree *t; - init_notes(NULL, NULL, NULL, 0); + const char *ref; + init_notes(NULL, NULL, NULL, flags); t = &default_notes_tree; - if (prefixcmp(t->ref, "refs/notes/")) + ref = (flags & NOTES_INIT_WRITABLE) ? t->update_ref : t->ref; + if (!starts_with(ref, "refs/notes/")) die("Refusing to %s notes in %s (outside of refs/notes/)", - subcommand, t->ref); + subcommand, ref); return t; } @@ -501,7 +363,7 @@ static int list(int argc, const char **argv, const char *prefix) usage_with_options(git_notes_list_usage, options); } - t = init_notes_check("list"); + t = init_notes_check("list", 0); if (argc) { if (get_sha1(argv[0], object)) die(_("Failed to resolve '%s' as a valid ref."), argv[0]); @@ -523,27 +385,28 @@ static int append_edit(int argc, const char **argv, const char *prefix); static int add(int argc, const char **argv, const char *prefix) { - int retval = 0, force = 0; + int force = 0, allow_empty = 0; const char *object_ref; struct notes_tree *t; unsigned char object[20], new_note[20]; - char logmsg[100]; const unsigned char *note; - struct msg_arg msg = { 0, 0, STRBUF_INIT }; + struct note_data d = { 0, 0, NULL, STRBUF_INIT }; struct option options[] = { - { OPTION_CALLBACK, 'm', "message", &msg, "msg", - "note contents as a string", PARSE_OPT_NONEG, + { OPTION_CALLBACK, 'm', "message", &d, N_("message"), + N_("note contents as a string"), PARSE_OPT_NONEG, parse_msg_arg}, - { OPTION_CALLBACK, 'F', "file", &msg, "file", - "note contents in a file", PARSE_OPT_NONEG, + { OPTION_CALLBACK, 'F', "file", &d, N_("file"), + N_("note contents in a file"), PARSE_OPT_NONEG, parse_file_arg}, - { OPTION_CALLBACK, 'c', "reedit-message", &msg, "object", - "reuse and edit specified note object", PARSE_OPT_NONEG, + { OPTION_CALLBACK, 'c', "reedit-message", &d, N_("object"), + N_("reuse and edit specified note object"), PARSE_OPT_NONEG, parse_reedit_arg}, - { OPTION_CALLBACK, 'C', "reuse-message", &msg, "object", - "reuse specified note object", PARSE_OPT_NONEG, + { OPTION_CALLBACK, 'C', "reuse-message", &d, N_("object"), + N_("reuse specified note object"), PARSE_OPT_NONEG, parse_reuse_arg}, - OPT__FORCE(&force, "replace existing notes"), + OPT_BOOL(0, "allow-empty", &allow_empty, + N_("allow storing empty note")), + OPT__FORCE(&force, N_("replace existing notes")), OPT_END() }; @@ -560,46 +423,49 @@ static int add(int argc, const char **argv, const char *prefix) if (get_sha1(object_ref, object)) die(_("Failed to resolve '%s' as a valid ref."), object_ref); - t = init_notes_check("add"); + t = init_notes_check("add", NOTES_INIT_WRITABLE); note = get_note(t, object); if (note) { if (!force) { - if (!msg.given) { - /* - * Redirect to "edit" subcommand. - * - * We only end up here if none of -m/-F/-c/-C - * or -f are given. The original args are - * therefore still in argv[0-1]. - */ - argv[0] = "edit"; - free_notes(t); - return append_edit(argc, argv, prefix); + free_notes(t); + if (d.given) { + free_note_data(&d); + return error(_("Cannot add notes. " + "Found existing notes for object %s. " + "Use '-f' to overwrite existing notes"), + sha1_to_hex(object)); } - retval = error(_("Cannot add notes. Found existing notes " - "for object %s. Use '-f' to overwrite " - "existing notes"), sha1_to_hex(object)); - goto out; + /* + * Redirect to "edit" subcommand. + * + * We only end up here if none of -m/-F/-c/-C or -f are + * given. The original args are therefore still in + * argv[0-1]. + */ + argv[0] = "edit"; + return append_edit(argc, argv, prefix); } fprintf(stderr, _("Overwriting existing notes for object %s\n"), sha1_to_hex(object)); } - create_note(object, &msg, 0, note, new_note); - - if (is_null_sha1(new_note)) + prepare_note_data(object, &d, note); + if (d.buf.len || allow_empty) { + write_note_data(&d, new_note); + if (add_note(t, object, new_note, combine_notes_overwrite)) + die("BUG: combine_notes_overwrite failed"); + commit_notes(t, "Notes added by 'git notes add'"); + } else { + fprintf(stderr, _("Removing note for object %s\n"), + sha1_to_hex(object)); remove_note(t, object); - else if (add_note(t, object, new_note, combine_notes_overwrite)) - die("BUG: combine_notes_overwrite failed"); + commit_notes(t, "Notes removed by 'git notes add'"); + } - snprintf(logmsg, sizeof(logmsg), "Notes %s by 'git notes %s'", - is_null_sha1(new_note) ? "removed" : "added", "add"); - commit_notes(t, logmsg); -out: + free_note_data(&d); free_notes(t); - strbuf_release(&(msg.buf)); - return retval; + return 0; } static int copy(int argc, const char **argv, const char *prefix) @@ -611,11 +477,11 @@ static int copy(int argc, const char **argv, const char *prefix) struct notes_tree *t; const char *rewrite_cmd = NULL; struct option options[] = { - OPT__FORCE(&force, "replace existing notes"), - OPT_BOOLEAN(0, "stdin", &from_stdin, "read objects from stdin"), - OPT_STRING(0, "for-rewrite", &rewrite_cmd, "command", - "load rewriting config for <command> (implies " - "--stdin)"), + OPT__FORCE(&force, N_("replace existing notes")), + OPT_BOOL(0, "stdin", &from_stdin, N_("read objects from stdin")), + OPT_STRING(0, "for-rewrite", &rewrite_cmd, N_("command"), + N_("load rewriting config for <command> (implies " + "--stdin)")), OPT_END() }; @@ -648,7 +514,7 @@ static int copy(int argc, const char **argv, const char *prefix) if (get_sha1(object_ref, object)) die(_("Failed to resolve '%s' as a valid ref."), object_ref); - t = init_notes_check("copy"); + t = init_notes_check("copy", NOTES_INIT_WRITABLE); note = get_note(t, object); if (note) { @@ -680,26 +546,29 @@ out: static int append_edit(int argc, const char **argv, const char *prefix) { + int allow_empty = 0; const char *object_ref; struct notes_tree *t; unsigned char object[20], new_note[20]; const unsigned char *note; char logmsg[100]; const char * const *usage; - struct msg_arg msg = { 0, 0, STRBUF_INIT }; + struct note_data d = { 0, 0, NULL, STRBUF_INIT }; struct option options[] = { - { OPTION_CALLBACK, 'm', "message", &msg, "msg", - "note contents as a string", PARSE_OPT_NONEG, + { OPTION_CALLBACK, 'm', "message", &d, N_("message"), + N_("note contents as a string"), PARSE_OPT_NONEG, parse_msg_arg}, - { OPTION_CALLBACK, 'F', "file", &msg, "file", - "note contents in a file", PARSE_OPT_NONEG, + { OPTION_CALLBACK, 'F', "file", &d, N_("file"), + N_("note contents in a file"), PARSE_OPT_NONEG, parse_file_arg}, - { OPTION_CALLBACK, 'c', "reedit-message", &msg, "object", - "reuse and edit specified note object", PARSE_OPT_NONEG, + { OPTION_CALLBACK, 'c', "reedit-message", &d, N_("object"), + N_("reuse and edit specified note object"), PARSE_OPT_NONEG, parse_reedit_arg}, - { OPTION_CALLBACK, 'C', "reuse-message", &msg, "object", - "reuse specified note object", PARSE_OPT_NONEG, + { OPTION_CALLBACK, 'C', "reuse-message", &d, N_("object"), + N_("reuse specified note object"), PARSE_OPT_NONEG, parse_reuse_arg}, + OPT_BOOL(0, "allow-empty", &allow_empty, + N_("allow storing empty note")), OPT_END() }; int edit = !strcmp(argv[0], "edit"); @@ -713,7 +582,7 @@ static int append_edit(int argc, const char **argv, const char *prefix) usage_with_options(usage, options); } - if (msg.given && edit) + if (d.given && edit) fprintf(stderr, _("The -m/-F/-c/-C options have been deprecated " "for the 'edit' subcommand.\n" "Please use 'git notes add -f -m/-F/-c/-C' instead.\n")); @@ -723,21 +592,42 @@ static int append_edit(int argc, const char **argv, const char *prefix) if (get_sha1(object_ref, object)) die(_("Failed to resolve '%s' as a valid ref."), object_ref); - t = init_notes_check(argv[0]); + t = init_notes_check(argv[0], NOTES_INIT_WRITABLE); note = get_note(t, object); - create_note(object, &msg, !edit, note, new_note); + prepare_note_data(object, &d, edit ? note : NULL); - if (is_null_sha1(new_note)) - remove_note(t, object); - else if (add_note(t, object, new_note, combine_notes_overwrite)) - die("BUG: combine_notes_overwrite failed"); + if (note && !edit) { + /* Append buf to previous note contents */ + unsigned long size; + enum object_type type; + char *prev_buf = read_sha1_file(note, &type, &size); + + strbuf_grow(&d.buf, size + 1); + if (d.buf.len && prev_buf && size) + strbuf_insert(&d.buf, 0, "\n", 1); + if (prev_buf && size) + strbuf_insert(&d.buf, 0, prev_buf, size); + free(prev_buf); + } - snprintf(logmsg, sizeof(logmsg), "Notes %s by 'git notes %s'", - is_null_sha1(new_note) ? "removed" : "added", argv[0]); + if (d.buf.len || allow_empty) { + write_note_data(&d, new_note); + if (add_note(t, object, new_note, combine_notes_overwrite)) + die("BUG: combine_notes_overwrite failed"); + snprintf(logmsg, sizeof(logmsg), "Notes added by 'git notes %s'", + argv[0]); + } else { + fprintf(stderr, _("Removing note for object %s\n"), + sha1_to_hex(object)); + remove_note(t, object); + snprintf(logmsg, sizeof(logmsg), "Notes removed by 'git notes %s'", + argv[0]); + } commit_notes(t, logmsg); + + free_note_data(&d); free_notes(t); - strbuf_release(&(msg.buf)); return 0; } @@ -765,7 +655,7 @@ static int show(int argc, const char **argv, const char *prefix) if (get_sha1(object_ref, object)) die(_("Failed to resolve '%s' as a valid ref."), object_ref); - t = init_notes_check("show"); + t = init_notes_check("show", 0); note = get_note(t, object); if (!note) @@ -820,7 +710,7 @@ static int merge_commit(struct notes_merge_options *o) die("Could not parse commit from NOTES_MERGE_PARTIAL."); if (partial->parents) - hashcpy(parent_sha1, partial->parents->item->object.sha1); + hashcpy(parent_sha1, partial->parents->item->object.oid.hash); else hashclr(parent_sha1); @@ -828,7 +718,7 @@ static int merge_commit(struct notes_merge_options *o) init_notes(t, "NOTES_MERGE_PARTIAL", combine_notes_overwrite, 0); o->local_ref = local_ref_to_free = - resolve_refdup("NOTES_MERGE_REF", sha1, 0, NULL); + resolve_refdup("NOTES_MERGE_REF", 0, sha1, NULL); if (!o->local_ref) die("Failed to resolve NOTES_MERGE_REF"); @@ -842,7 +732,7 @@ static int merge_commit(struct notes_merge_options *o) strbuf_insert(&msg, 0, "notes: ", 7); update_ref(msg.buf, o->local_ref, sha1, is_null_sha1(parent_sha1) ? NULL : parent_sha1, - 0, DIE_ON_ERR); + 0, UPDATE_REFS_DIE_ON_ERR); free_notes(t); strbuf_release(&msg); @@ -851,6 +741,20 @@ static int merge_commit(struct notes_merge_options *o) return ret; } +static int git_config_get_notes_strategy(const char *key, + enum notes_merge_strategy *strategy) +{ + char *value; + + if (git_config_get_string(key, &value)) + return 1; + if (parse_notes_merge_strategy(value, strategy)) + git_die_config(key, "unknown notes merge strategy %s", value); + + free(value); + return 0; +} + static int merge(int argc, const char **argv, const char *prefix) { struct strbuf remote_ref = STRBUF_INIT, msg = STRBUF_INIT; @@ -861,20 +765,20 @@ static int merge(int argc, const char **argv, const char *prefix) int verbosity = 0, result; const char *strategy = NULL; struct option options[] = { - OPT_GROUP("General options"), + OPT_GROUP(N_("General options")), OPT__VERBOSITY(&verbosity), - OPT_GROUP("Merge options"), - OPT_STRING('s', "strategy", &strategy, "strategy", - "resolve notes conflicts using the given strategy " - "(manual/ours/theirs/union/cat_sort_uniq)"), - OPT_GROUP("Committing unmerged notes"), - { OPTION_BOOLEAN, 0, "commit", &do_commit, NULL, - "finalize notes merge by committing unmerged notes", - PARSE_OPT_NOARG | PARSE_OPT_NONEG }, - OPT_GROUP("Aborting notes merge resolution"), - { OPTION_BOOLEAN, 0, "abort", &do_abort, NULL, - "abort notes merge", - PARSE_OPT_NOARG | PARSE_OPT_NONEG }, + OPT_GROUP(N_("Merge options")), + OPT_STRING('s', "strategy", &strategy, N_("strategy"), + N_("resolve notes conflicts using the given strategy " + "(manual/ours/theirs/union/cat_sort_uniq)")), + OPT_GROUP(N_("Committing unmerged notes")), + { OPTION_SET_INT, 0, "commit", &do_commit, NULL, + N_("finalize notes merge by committing unmerged notes"), + PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, 1}, + OPT_GROUP(N_("Aborting notes merge resolution")), + { OPTION_SET_INT, 0, "abort", &do_abort, NULL, + N_("abort notes merge"), + PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, 1}, OPT_END() }; @@ -906,27 +810,31 @@ static int merge(int argc, const char **argv, const char *prefix) o.local_ref = default_notes_ref(); strbuf_addstr(&remote_ref, argv[0]); - expand_notes_ref(&remote_ref); + expand_loose_notes_ref(&remote_ref); o.remote_ref = remote_ref.buf; + t = init_notes_check("merge", NOTES_INIT_WRITABLE); + if (strategy) { - if (!strcmp(strategy, "manual")) - o.strategy = NOTES_MERGE_RESOLVE_MANUAL; - else if (!strcmp(strategy, "ours")) - o.strategy = NOTES_MERGE_RESOLVE_OURS; - else if (!strcmp(strategy, "theirs")) - o.strategy = NOTES_MERGE_RESOLVE_THEIRS; - else if (!strcmp(strategy, "union")) - o.strategy = NOTES_MERGE_RESOLVE_UNION; - else if (!strcmp(strategy, "cat_sort_uniq")) - o.strategy = NOTES_MERGE_RESOLVE_CAT_SORT_UNIQ; - else { + if (parse_notes_merge_strategy(strategy, &o.strategy)) { error("Unknown -s/--strategy: %s", strategy); usage_with_options(git_notes_merge_usage, options); } - } + } else { + struct strbuf merge_key = STRBUF_INIT; + const char *short_ref = NULL; + + if (!skip_prefix(o.local_ref, "refs/notes/", &short_ref)) + die("BUG: local ref %s is outside of refs/notes/", + o.local_ref); - t = init_notes_check("merge"); + strbuf_addf(&merge_key, "notes.%s.mergeStrategy", short_ref); + + if (git_config_get_notes_strategy(merge_key.buf, &o.strategy)) + git_config_get_notes_strategy("notes.mergeStrategy", &o.strategy); + + strbuf_release(&merge_key); + } strbuf_addf(&msg, "notes: Merged notes from %s into %s", remote_ref.buf, default_notes_ref()); @@ -937,12 +845,17 @@ static int merge(int argc, const char **argv, const char *prefix) if (result >= 0) /* Merge resulted (trivially) in result_sha1 */ /* Update default notes ref with new commit */ update_ref(msg.buf, default_notes_ref(), result_sha1, NULL, - 0, DIE_ON_ERR); + 0, UPDATE_REFS_DIE_ON_ERR); else { /* Merge has unresolved conflicts */ + const struct worktree *wt; /* Update .git/NOTES_MERGE_PARTIAL with partial merge result */ update_ref(msg.buf, "NOTES_MERGE_PARTIAL", result_sha1, NULL, - 0, DIE_ON_ERR); + 0, UPDATE_REFS_DIE_ON_ERR); /* Store ref-to-be-updated into .git/NOTES_MERGE_REF */ + wt = find_shared_symref("NOTES_MERGE_REF", default_notes_ref()); + if (wt) + die(_("A notes merge into %s is already in-progress at %s"), + default_notes_ref(), wt->path); if (create_symref("NOTES_MERGE_REF", default_notes_ref(), NULL)) die("Failed to store link to current notes ref (%s)", default_notes_ref()); @@ -980,10 +893,10 @@ static int remove_cmd(int argc, const char **argv, const char *prefix) int from_stdin = 0; struct option options[] = { OPT_BIT(0, "ignore-missing", &flag, - "attempt to remove non-existent note is not an error", + N_("attempt to remove non-existent note is not an error"), IGNORE_MISSING), - OPT_BOOLEAN(0, "stdin", &from_stdin, - "read object names from the standard input"), + OPT_BOOL(0, "stdin", &from_stdin, + N_("read object names from the standard input")), OPT_END() }; struct notes_tree *t; @@ -992,7 +905,7 @@ static int remove_cmd(int argc, const char **argv, const char *prefix) argc = parse_options(argc, argv, prefix, options, git_notes_remove_usage, 0); - t = init_notes_check("remove"); + t = init_notes_check("remove", NOTES_INIT_WRITABLE); if (!argc && !from_stdin) { retval = remove_one_note(t, "HEAD", flag); @@ -1034,7 +947,7 @@ static int prune(int argc, const char **argv, const char *prefix) usage_with_options(git_notes_prune_usage, options); } - t = init_notes_check("prune"); + t = init_notes_check("prune", NOTES_INIT_WRITABLE); prune_notes(t, (verbose ? NOTES_PRUNE_VERBOSE : 0) | (show_only ? NOTES_PRUNE_VERBOSE|NOTES_PRUNE_DRYRUN : 0) ); @@ -1064,8 +977,8 @@ int cmd_notes(int argc, const char **argv, const char *prefix) int result; const char *override_notes_ref = NULL; struct option options[] = { - OPT_STRING(0, "ref", &override_notes_ref, "notes_ref", - "use notes from <notes_ref>"), + OPT_STRING(0, "ref", &override_notes_ref, N_("notes-ref"), + N_("use notes from <notes-ref>")), OPT_END() }; diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c index 96c1680976..8f5e358e22 100644 --- a/builtin/pack-objects.c +++ b/builtin/pack-objects.c @@ -14,60 +14,36 @@ #include "diff.h" #include "revision.h" #include "list-objects.h" +#include "pack-objects.h" #include "progress.h" #include "refs.h" +#include "streaming.h" #include "thread-utils.h" - -static const char pack_usage[] = - "git pack-objects [ -q | --progress | --all-progress ]\n" - " [--all-progress-implied]\n" - " [--max-pack-size=<n>] [--local] [--incremental]\n" - " [--window=<n>] [--window-memory=<n>] [--depth=<n>]\n" - " [--no-reuse-delta] [--no-reuse-object] [--delta-base-offset]\n" - " [--threads=<n>] [--non-empty] [--revs [--unpacked | --all]]\n" - " [--reflog] [--stdout | base-name] [--include-tag]\n" - " [--keep-unreachable | --unpack-unreachable]\n" - " [< ref-list | < object-list]"; - -struct object_entry { - struct pack_idx_entry idx; - unsigned long size; /* uncompressed size */ - struct packed_git *in_pack; /* already in pack */ - off_t in_pack_offset; - struct object_entry *delta; /* delta base object */ - struct object_entry *delta_child; /* deltified objects who bases me */ - struct object_entry *delta_sibling; /* other deltified objects who - * uses the same base as me - */ - void *delta_data; /* cached delta (uncompressed) */ - unsigned long delta_size; /* delta data size (uncompressed) */ - unsigned long z_delta_size; /* delta data size (compressed) */ - unsigned int hash; /* name hint hash */ - enum object_type type; - enum object_type in_pack_type; /* could be delta */ - unsigned char in_pack_header_size; - unsigned char preferred_base; /* we do not pack this, but is available - * to be used as the base object to delta - * objects against. - */ - unsigned char no_try_delta; - unsigned char tagged; /* near the very tip of refs */ - unsigned char filled; /* assigned write-order */ +#include "pack-bitmap.h" +#include "reachable.h" +#include "sha1-array.h" +#include "argv-array.h" + +static const char *pack_usage[] = { + N_("git pack-objects --stdout [<options>...] [< <ref-list> | < <object-list>]"), + N_("git pack-objects [<options>...] <base-name> [< <ref-list> | < <object-list>]"), + NULL }; /* - * Objects we are going to pack are collected in objects array (dynamically - * expanded). nr_objects & nr_alloc controls this array. They are stored - * in the order we see -- typically rev-list --objects order that gives us - * nice "minimum seek" order. + * Objects we are going to pack are collected in the `to_pack` structure. + * It contains an array (dynamically expanded) of the object data, and a map + * that can resolve SHA1s to their position in the array. */ -static struct object_entry *objects; +static struct packing_data to_pack; + static struct pack_idx_entry **written_list; -static uint32_t nr_objects, nr_alloc, nr_result, nr_written; +static uint32_t nr_result, nr_written; static int non_empty; static int reuse_delta = 1, reuse_object = 1; static int keep_unreachable, unpack_unreachable, include_tag; +static unsigned long unpack_unreachable_expiration; static int local; static int incremental; static int ignore_packed_keep; @@ -85,6 +61,14 @@ static struct progress *progress_state; static int pack_compression_level = Z_DEFAULT_COMPRESSION; static int pack_compression_seen; +static struct packed_git *reuse_packfile; +static uint32_t reuse_packfile_objects; +static off_t reuse_packfile_offset; + +static int use_bitmap_index = 1; +static int write_bitmap_index; +static uint16_t write_bitmap_options; + static unsigned long delta_cache_size = 0; static unsigned long max_delta_cache_size = 256 * 1024 * 1024; static unsigned long cache_max_small_delta_size = 1000; @@ -92,20 +76,27 @@ static unsigned long cache_max_small_delta_size = 1000; static unsigned long window_memory_limit = 0; /* - * The object names in objects array are hashed with this hashtable, - * to help looking up the entry by object name. - * This hashtable is built after all the objects are seen. - */ -static int *object_ix; -static int object_ix_hashsz; -static struct object_entry *locate_object_entry(const unsigned char *sha1); - -/* * stats */ static uint32_t written, written_delta; static uint32_t reused, reused_delta; +/* + * Indexed commits + */ +static struct commit **indexed_commits; +static unsigned int indexed_commits_nr; +static unsigned int indexed_commits_alloc; + +static void index_commit_for_bitmap(struct commit *commit) +{ + if (indexed_commits_nr >= indexed_commits_alloc) { + indexed_commits_alloc = (indexed_commits_alloc + 32) * 2; + REALLOC_ARRAY(indexed_commits, indexed_commits_alloc); + } + + indexed_commits[indexed_commits_nr++] = commit; +} static void *get_delta(struct object_entry *entry) { @@ -134,7 +125,6 @@ static unsigned long do_compress(void **pptr, unsigned long size) void *in, *out; unsigned long maxsize; - memset(&stream, 0, sizeof(stream)); git_deflate_init(&stream, pack_compression_level); maxsize = git_deflate_bound(&stream, size); @@ -154,6 +144,45 @@ static unsigned long do_compress(void **pptr, unsigned long size) return stream.total_out; } +static unsigned long write_large_blob_data(struct git_istream *st, struct sha1file *f, + const unsigned char *sha1) +{ + git_zstream stream; + unsigned char ibuf[1024 * 16]; + unsigned char obuf[1024 * 16]; + unsigned long olen = 0; + + git_deflate_init(&stream, pack_compression_level); + + for (;;) { + ssize_t readlen; + int zret = Z_OK; + readlen = read_istream(st, ibuf, sizeof(ibuf)); + if (readlen == -1) + die(_("unable to read %s"), sha1_to_hex(sha1)); + + stream.next_in = ibuf; + stream.avail_in = readlen; + while ((stream.avail_in || readlen == 0) && + (zret == Z_OK || zret == Z_BUF_ERROR)) { + stream.next_out = obuf; + stream.avail_out = sizeof(obuf); + zret = git_deflate(&stream, readlen ? 0 : Z_FINISH); + sha1write(f, obuf, stream.next_out - obuf); + olen += stream.next_out - obuf; + } + if (stream.avail_in) + die(_("deflate error (%d)"), zret); + if (readlen == 0) { + if (zret != Z_STREAM_END) + die(_("deflate error (%d)"), zret); + break; + } + } + git_deflate_end(&stream); + return olen; +} + /* * we are going to reuse the existing object data as is. make * sure it is not corrupt. @@ -204,22 +233,198 @@ static void copy_pack_data(struct sha1file *f, } /* Return 0 if we will bust the pack-size limit */ -static unsigned long write_object(struct sha1file *f, - struct object_entry *entry, - off_t write_offset) +static unsigned long write_no_reuse_object(struct sha1file *f, struct object_entry *entry, + unsigned long limit, int usable_delta) { - unsigned long size, limit, datalen; - void *buf; + unsigned long size, datalen; unsigned char header[10], dheader[10]; unsigned hdrlen; enum object_type type; + void *buf; + struct git_istream *st = NULL; + + if (!usable_delta) { + if (entry->type == OBJ_BLOB && + entry->size > big_file_threshold && + (st = open_istream(entry->idx.sha1, &type, &size, NULL)) != NULL) + buf = NULL; + else { + buf = read_sha1_file(entry->idx.sha1, &type, &size); + if (!buf) + die(_("unable to read %s"), sha1_to_hex(entry->idx.sha1)); + } + /* + * make sure no cached delta data remains from a + * previous attempt before a pack split occurred. + */ + free(entry->delta_data); + entry->delta_data = NULL; + entry->z_delta_size = 0; + } else if (entry->delta_data) { + size = entry->delta_size; + buf = entry->delta_data; + entry->delta_data = NULL; + type = (allow_ofs_delta && entry->delta->idx.offset) ? + OBJ_OFS_DELTA : OBJ_REF_DELTA; + } else { + buf = get_delta(entry); + size = entry->delta_size; + type = (allow_ofs_delta && entry->delta->idx.offset) ? + OBJ_OFS_DELTA : OBJ_REF_DELTA; + } + + if (st) /* large blob case, just assume we don't compress well */ + datalen = size; + else if (entry->z_delta_size) + datalen = entry->z_delta_size; + else + datalen = do_compress(&buf, size); + + /* + * The object header is a byte of 'type' followed by zero or + * more bytes of length. + */ + hdrlen = encode_in_pack_object_header(type, size, header); + + if (type == OBJ_OFS_DELTA) { + /* + * Deltas with relative base contain an additional + * encoding of the relative offset for the delta + * base from this object's position in the pack. + */ + off_t ofs = entry->idx.offset - entry->delta->idx.offset; + unsigned pos = sizeof(dheader) - 1; + dheader[pos] = ofs & 127; + while (ofs >>= 7) + dheader[--pos] = 128 | (--ofs & 127); + if (limit && hdrlen + sizeof(dheader) - pos + datalen + 20 >= limit) { + if (st) + close_istream(st); + free(buf); + return 0; + } + sha1write(f, header, hdrlen); + sha1write(f, dheader + pos, sizeof(dheader) - pos); + hdrlen += sizeof(dheader) - pos; + } else if (type == OBJ_REF_DELTA) { + /* + * Deltas with a base reference contain + * an additional 20 bytes for the base sha1. + */ + if (limit && hdrlen + 20 + datalen + 20 >= limit) { + if (st) + close_istream(st); + free(buf); + return 0; + } + sha1write(f, header, hdrlen); + sha1write(f, entry->delta->idx.sha1, 20); + hdrlen += 20; + } else { + if (limit && hdrlen + datalen + 20 >= limit) { + if (st) + close_istream(st); + free(buf); + return 0; + } + sha1write(f, header, hdrlen); + } + if (st) { + datalen = write_large_blob_data(st, f, entry->idx.sha1); + close_istream(st); + } else { + sha1write(f, buf, datalen); + free(buf); + } + + return hdrlen + datalen; +} + +/* Return 0 if we will bust the pack-size limit */ +static unsigned long write_reuse_object(struct sha1file *f, struct object_entry *entry, + unsigned long limit, int usable_delta) +{ + struct packed_git *p = entry->in_pack; + struct pack_window *w_curs = NULL; + struct revindex_entry *revidx; + off_t offset; + enum object_type type = entry->type; + unsigned long datalen; + unsigned char header[10], dheader[10]; + unsigned hdrlen; + + if (entry->delta) + type = (allow_ofs_delta && entry->delta->idx.offset) ? + OBJ_OFS_DELTA : OBJ_REF_DELTA; + hdrlen = encode_in_pack_object_header(type, entry->size, header); + + offset = entry->in_pack_offset; + revidx = find_pack_revindex(p, offset); + datalen = revidx[1].offset - offset; + if (!pack_to_stdout && p->index_version > 1 && + check_pack_crc(p, &w_curs, offset, datalen, revidx->nr)) { + error("bad packed object CRC for %s", sha1_to_hex(entry->idx.sha1)); + unuse_pack(&w_curs); + return write_no_reuse_object(f, entry, limit, usable_delta); + } + + offset += entry->in_pack_header_size; + datalen -= entry->in_pack_header_size; + + if (!pack_to_stdout && p->index_version == 1 && + check_pack_inflate(p, &w_curs, offset, datalen, entry->size)) { + error("corrupt packed object for %s", sha1_to_hex(entry->idx.sha1)); + unuse_pack(&w_curs); + return write_no_reuse_object(f, entry, limit, usable_delta); + } + + if (type == OBJ_OFS_DELTA) { + off_t ofs = entry->idx.offset - entry->delta->idx.offset; + unsigned pos = sizeof(dheader) - 1; + dheader[pos] = ofs & 127; + while (ofs >>= 7) + dheader[--pos] = 128 | (--ofs & 127); + if (limit && hdrlen + sizeof(dheader) - pos + datalen + 20 >= limit) { + unuse_pack(&w_curs); + return 0; + } + sha1write(f, header, hdrlen); + sha1write(f, dheader + pos, sizeof(dheader) - pos); + hdrlen += sizeof(dheader) - pos; + reused_delta++; + } else if (type == OBJ_REF_DELTA) { + if (limit && hdrlen + 20 + datalen + 20 >= limit) { + unuse_pack(&w_curs); + return 0; + } + sha1write(f, header, hdrlen); + sha1write(f, entry->delta->idx.sha1, 20); + hdrlen += 20; + reused_delta++; + } else { + if (limit && hdrlen + datalen + 20 >= limit) { + unuse_pack(&w_curs); + return 0; + } + sha1write(f, header, hdrlen); + } + copy_pack_data(f, p, &w_curs, offset, datalen); + unuse_pack(&w_curs); + reused++; + return hdrlen + datalen; +} + +/* Return 0 if we will bust the pack-size limit */ +static unsigned long write_object(struct sha1file *f, + struct object_entry *entry, + off_t write_offset) +{ + unsigned long limit, len; int usable_delta, to_reuse; if (!pack_to_stdout) crc32_begin(f); - type = entry->type; - /* apply size limit if limited packsize and not first object */ if (!pack_size_limit || !nr_written) limit = 0; @@ -247,11 +452,11 @@ static unsigned long write_object(struct sha1file *f, to_reuse = 0; /* explicit */ else if (!entry->in_pack) to_reuse = 0; /* can't reuse what we don't have */ - else if (type == OBJ_REF_DELTA || type == OBJ_OFS_DELTA) + else if (entry->type == OBJ_REF_DELTA || entry->type == OBJ_OFS_DELTA) /* check_object() decided it for us ... */ to_reuse = usable_delta; /* ... but pack split may override that */ - else if (type != entry->in_pack_type) + else if (entry->type != entry->in_pack_type) to_reuse = 0; /* pack has delta which is unusable */ else if (entry->delta) to_reuse = 0; /* we want to pack afresh */ @@ -260,153 +465,19 @@ static unsigned long write_object(struct sha1file *f, * and we do not need to deltify it. */ - if (!to_reuse) { - no_reuse: - if (!usable_delta) { - buf = read_sha1_file(entry->idx.sha1, &type, &size); - if (!buf) - die("unable to read %s", sha1_to_hex(entry->idx.sha1)); - /* - * make sure no cached delta data remains from a - * previous attempt before a pack split occurred. - */ - free(entry->delta_data); - entry->delta_data = NULL; - entry->z_delta_size = 0; - } else if (entry->delta_data) { - size = entry->delta_size; - buf = entry->delta_data; - entry->delta_data = NULL; - type = (allow_ofs_delta && entry->delta->idx.offset) ? - OBJ_OFS_DELTA : OBJ_REF_DELTA; - } else { - buf = get_delta(entry); - size = entry->delta_size; - type = (allow_ofs_delta && entry->delta->idx.offset) ? - OBJ_OFS_DELTA : OBJ_REF_DELTA; - } - - if (entry->z_delta_size) - datalen = entry->z_delta_size; - else - datalen = do_compress(&buf, size); - - /* - * The object header is a byte of 'type' followed by zero or - * more bytes of length. - */ - hdrlen = encode_in_pack_object_header(type, size, header); - - if (type == OBJ_OFS_DELTA) { - /* - * Deltas with relative base contain an additional - * encoding of the relative offset for the delta - * base from this object's position in the pack. - */ - off_t ofs = entry->idx.offset - entry->delta->idx.offset; - unsigned pos = sizeof(dheader) - 1; - dheader[pos] = ofs & 127; - while (ofs >>= 7) - dheader[--pos] = 128 | (--ofs & 127); - if (limit && hdrlen + sizeof(dheader) - pos + datalen + 20 >= limit) { - free(buf); - return 0; - } - sha1write(f, header, hdrlen); - sha1write(f, dheader + pos, sizeof(dheader) - pos); - hdrlen += sizeof(dheader) - pos; - } else if (type == OBJ_REF_DELTA) { - /* - * Deltas with a base reference contain - * an additional 20 bytes for the base sha1. - */ - if (limit && hdrlen + 20 + datalen + 20 >= limit) { - free(buf); - return 0; - } - sha1write(f, header, hdrlen); - sha1write(f, entry->delta->idx.sha1, 20); - hdrlen += 20; - } else { - if (limit && hdrlen + datalen + 20 >= limit) { - free(buf); - return 0; - } - sha1write(f, header, hdrlen); - } - sha1write(f, buf, datalen); - free(buf); - } - else { - struct packed_git *p = entry->in_pack; - struct pack_window *w_curs = NULL; - struct revindex_entry *revidx; - off_t offset; - - if (entry->delta) - type = (allow_ofs_delta && entry->delta->idx.offset) ? - OBJ_OFS_DELTA : OBJ_REF_DELTA; - hdrlen = encode_in_pack_object_header(type, entry->size, header); - - offset = entry->in_pack_offset; - revidx = find_pack_revindex(p, offset); - datalen = revidx[1].offset - offset; - if (!pack_to_stdout && p->index_version > 1 && - check_pack_crc(p, &w_curs, offset, datalen, revidx->nr)) { - error("bad packed object CRC for %s", sha1_to_hex(entry->idx.sha1)); - unuse_pack(&w_curs); - goto no_reuse; - } - - offset += entry->in_pack_header_size; - datalen -= entry->in_pack_header_size; - if (!pack_to_stdout && p->index_version == 1 && - check_pack_inflate(p, &w_curs, offset, datalen, entry->size)) { - error("corrupt packed object for %s", sha1_to_hex(entry->idx.sha1)); - unuse_pack(&w_curs); - goto no_reuse; - } + if (!to_reuse) + len = write_no_reuse_object(f, entry, limit, usable_delta); + else + len = write_reuse_object(f, entry, limit, usable_delta); + if (!len) + return 0; - if (type == OBJ_OFS_DELTA) { - off_t ofs = entry->idx.offset - entry->delta->idx.offset; - unsigned pos = sizeof(dheader) - 1; - dheader[pos] = ofs & 127; - while (ofs >>= 7) - dheader[--pos] = 128 | (--ofs & 127); - if (limit && hdrlen + sizeof(dheader) - pos + datalen + 20 >= limit) { - unuse_pack(&w_curs); - return 0; - } - sha1write(f, header, hdrlen); - sha1write(f, dheader + pos, sizeof(dheader) - pos); - hdrlen += sizeof(dheader) - pos; - reused_delta++; - } else if (type == OBJ_REF_DELTA) { - if (limit && hdrlen + 20 + datalen + 20 >= limit) { - unuse_pack(&w_curs); - return 0; - } - sha1write(f, header, hdrlen); - sha1write(f, entry->delta->idx.sha1, 20); - hdrlen += 20; - reused_delta++; - } else { - if (limit && hdrlen + datalen + 20 >= limit) { - unuse_pack(&w_curs); - return 0; - } - sha1write(f, header, hdrlen); - } - copy_pack_data(f, p, &w_curs, offset, datalen); - unuse_pack(&w_curs); - reused++; - } if (usable_delta) written_delta++; written++; if (!pack_to_stdout) entry->idx.crc32 = crc32_end(f); - return hdrlen + datalen; + return len; } enum write_one_status { @@ -469,16 +540,16 @@ static enum write_one_status write_one(struct sha1file *f, return WRITE_ONE_WRITTEN; } -static int mark_tagged(const char *path, const unsigned char *sha1, int flag, +static int mark_tagged(const char *path, const struct object_id *oid, int flag, void *cb_data) { unsigned char peeled[20]; - struct object_entry *entry = locate_object_entry(sha1); + struct object_entry *entry = packlist_find(&to_pack, oid->hash, NULL); if (entry) entry->tagged = 1; if (!peel_ref(path, peeled)) { - entry = locate_object_entry(peeled); + entry = packlist_find(&to_pack, peeled, NULL); if (entry) entry->tagged = 1; } @@ -553,9 +624,10 @@ static struct object_entry **compute_write_order(void) { unsigned int i, wo_end, last_untagged; - struct object_entry **wo = xmalloc(nr_objects * sizeof(*wo)); + struct object_entry **wo; + struct object_entry *objects = to_pack.objects; - for (i = 0; i < nr_objects; i++) { + for (i = 0; i < to_pack.nr_objects; i++) { objects[i].tagged = 0; objects[i].filled = 0; objects[i].delta_child = NULL; @@ -567,7 +639,7 @@ static struct object_entry **compute_write_order(void) * Make sure delta_sibling is sorted in the original * recency order. */ - for (i = nr_objects; i > 0;) { + for (i = to_pack.nr_objects; i > 0;) { struct object_entry *e = &objects[--i]; if (!e->delta) continue; @@ -585,7 +657,8 @@ static struct object_entry **compute_write_order(void) * Give the objects in the original recency order until * we see a tagged tip. */ - for (i = wo_end = 0; i < nr_objects; i++) { + ALLOC_ARRAY(wo, to_pack.nr_objects); + for (i = wo_end = 0; i < to_pack.nr_objects; i++) { if (objects[i].tagged) break; add_to_write_order(wo, &wo_end, &objects[i]); @@ -595,7 +668,7 @@ static struct object_entry **compute_write_order(void) /* * Then fill all the tagged tips. */ - for (; i < nr_objects; i++) { + for (; i < to_pack.nr_objects; i++) { if (objects[i].tagged) add_to_write_order(wo, &wo_end, &objects[i]); } @@ -603,7 +676,7 @@ static struct object_entry **compute_write_order(void) /* * And then all remaining commits and tags. */ - for (i = last_untagged; i < nr_objects; i++) { + for (i = last_untagged; i < to_pack.nr_objects; i++) { if (objects[i].type != OBJ_COMMIT && objects[i].type != OBJ_TAG) continue; @@ -613,7 +686,7 @@ static struct object_entry **compute_write_order(void) /* * And then all the trees. */ - for (i = last_untagged; i < nr_objects; i++) { + for (i = last_untagged; i < to_pack.nr_objects; i++) { if (objects[i].type != OBJ_TREE) continue; add_to_write_order(wo, &wo_end, &objects[i]); @@ -622,17 +695,74 @@ static struct object_entry **compute_write_order(void) /* * Finally all the rest in really tight order */ - for (i = last_untagged; i < nr_objects; i++) { + for (i = last_untagged; i < to_pack.nr_objects; i++) { if (!objects[i].filled) add_family_to_write_order(wo, &wo_end, &objects[i]); } - if (wo_end != nr_objects) - die("ordered %u objects, expected %"PRIu32, wo_end, nr_objects); + if (wo_end != to_pack.nr_objects) + die("ordered %u objects, expected %"PRIu32, wo_end, to_pack.nr_objects); return wo; } +static off_t write_reused_pack(struct sha1file *f) +{ + unsigned char buffer[8192]; + off_t to_write, total; + int fd; + + if (!is_pack_valid(reuse_packfile)) + die("packfile is invalid: %s", reuse_packfile->pack_name); + + fd = git_open_noatime(reuse_packfile->pack_name); + if (fd < 0) + die_errno("unable to open packfile for reuse: %s", + reuse_packfile->pack_name); + + if (lseek(fd, sizeof(struct pack_header), SEEK_SET) == -1) + die_errno("unable to seek in reused packfile"); + + if (reuse_packfile_offset < 0) + reuse_packfile_offset = reuse_packfile->pack_size - 20; + + total = to_write = reuse_packfile_offset - sizeof(struct pack_header); + + while (to_write) { + int read_pack = xread(fd, buffer, sizeof(buffer)); + + if (read_pack <= 0) + die_errno("unable to read from reused packfile"); + + if (read_pack > to_write) + read_pack = to_write; + + sha1write(f, buffer, read_pack); + to_write -= read_pack; + + /* + * We don't know the actual number of objects written, + * only how many bytes written, how many bytes total, and + * how many objects total. So we can fake it by pretending all + * objects we are writing are the same size. This gives us a + * smooth progress meter, and at the end it matches the true + * answer. + */ + written = reuse_packfile_objects * + (((double)(total - to_write)) / total); + display_progress(progress_state, written); + } + + close(fd); + written = reuse_packfile_objects; + display_progress(progress_state, written); + return reuse_packfile_offset - sizeof(struct pack_header); +} + +static const char no_split_warning[] = N_( +"disabling bitmap writing, packs are split due to pack.packSizeLimit" +); + static void write_pack_file(void) { uint32_t i = 0, j; @@ -643,8 +773,8 @@ static void write_pack_file(void) struct object_entry **write_order; if (progress > pack_to_stdout) - progress_state = start_progress("Writing objects", nr_result); - written_list = xmalloc(nr_objects * sizeof(*written_list)); + progress_state = start_progress(_("Writing objects"), nr_result); + ALLOC_ARRAY(written_list, to_pack.nr_objects); write_order = compute_write_order(); do { @@ -657,10 +787,17 @@ static void write_pack_file(void) f = create_tmp_packfile(&pack_tmp_name); offset = write_pack_header(f, nr_remaining); - if (!offset) - die_errno("unable to write pack header"); + + if (reuse_packfile) { + off_t packfile_size; + assert(pack_to_stdout); + + packfile_size = write_reused_pack(f); + offset += packfile_size; + } + nr_written = 0; - for (; i < nr_objects; i++) { + for (; i < to_pack.nr_objects; i++) { struct object_entry *e = write_order[i]; if (write_one(f, e, &offset) == WRITE_ONE_BREAK) break; @@ -680,11 +817,15 @@ static void write_pack_file(void) fixup_pack_header_footer(fd, sha1, pack_tmp_name, nr_written, sha1, offset); close(fd); + if (write_bitmap_index) { + warning(_(no_split_warning)); + write_bitmap_index = 0; + } } if (!pack_to_stdout) { struct stat st; - char tmpname[PATH_MAX]; + struct strbuf tmpname = STRBUF_INIT; /* * Packs are runtime accessed in their mtime @@ -694,8 +835,7 @@ static void write_pack_file(void) * to preserve this property. */ if (stat(pack_tmp_name, &st) < 0) { - warning("failed to stat %s: %s", - pack_tmp_name, strerror(errno)); + warning_errno("failed to stat %s", pack_tmp_name); } else if (!last_mtime) { last_mtime = st.st_mtime; } else { @@ -703,17 +843,35 @@ static void write_pack_file(void) utb.actime = st.st_atime; utb.modtime = --last_mtime; if (utime(pack_tmp_name, &utb) < 0) - warning("failed utime() on %s: %s", - tmpname, strerror(errno)); + warning_errno("failed utime() on %s", pack_tmp_name); + } + + strbuf_addf(&tmpname, "%s-", base_name); + + if (write_bitmap_index) { + bitmap_writer_set_checksum(sha1); + bitmap_writer_build_type_index(written_list, nr_written); } - /* Enough space for "-<sha-1>.pack"? */ - if (sizeof(tmpname) <= strlen(base_name) + 50) - die("pack base name '%s' too long", base_name); - snprintf(tmpname, sizeof(tmpname), "%s-", base_name); - finish_tmp_packfile(tmpname, pack_tmp_name, + finish_tmp_packfile(&tmpname, pack_tmp_name, written_list, nr_written, &pack_idx_opts, sha1); + + if (write_bitmap_index) { + strbuf_addf(&tmpname, "%s.bitmap", sha1_to_hex(sha1)); + + stop_progress(&progress_state); + + bitmap_writer_show_progress(progress); + bitmap_writer_reuse_bitmaps(&to_pack); + bitmap_writer_select_commits(indexed_commits, indexed_commits_nr, -1); + bitmap_writer_build(&to_pack); + bitmap_writer_finish(written_list, nr_written, + tmpname.buf, write_bitmap_options); + write_bitmap_index = 0; + } + + strbuf_release(&tmpname); free(pack_tmp_name); puts(sha1_to_hex(sha1)); } @@ -723,7 +881,7 @@ static void write_pack_file(void) written_list[j]->offset = (off_t)-1; } nr_remaining -= nr_written; - } while (nr_remaining && i < nr_objects); + } while (nr_remaining && i < to_pack.nr_objects); free(written_list); free(write_order); @@ -733,73 +891,6 @@ static void write_pack_file(void) written, nr_result); } -static int locate_object_entry_hash(const unsigned char *sha1) -{ - int i; - unsigned int ui; - memcpy(&ui, sha1, sizeof(unsigned int)); - i = ui % object_ix_hashsz; - while (0 < object_ix[i]) { - if (!hashcmp(sha1, objects[object_ix[i] - 1].idx.sha1)) - return i; - if (++i == object_ix_hashsz) - i = 0; - } - return -1 - i; -} - -static struct object_entry *locate_object_entry(const unsigned char *sha1) -{ - int i; - - if (!object_ix_hashsz) - return NULL; - - i = locate_object_entry_hash(sha1); - if (0 <= i) - return &objects[object_ix[i]-1]; - return NULL; -} - -static void rehash_objects(void) -{ - uint32_t i; - struct object_entry *oe; - - object_ix_hashsz = nr_objects * 3; - if (object_ix_hashsz < 1024) - object_ix_hashsz = 1024; - object_ix = xrealloc(object_ix, sizeof(int) * object_ix_hashsz); - memset(object_ix, 0, sizeof(int) * object_ix_hashsz); - for (i = 0, oe = objects; i < nr_objects; i++, oe++) { - int ix = locate_object_entry_hash(oe->idx.sha1); - if (0 <= ix) - continue; - ix = -1 - ix; - object_ix[ix] = i + 1; - } -} - -static unsigned name_hash(const char *name) -{ - unsigned c, hash = 0; - - if (!name) - return 0; - - /* - * This effectively just creates a sortable number from the - * last sixteen non-whitespace characters. Last characters - * count "most", so things that end in ".c" sort together. - */ - while ((c = *name++) != 0) { - if (isspace(c)) - continue; - hash = (hash >> 2) + (c << 24); - } - return hash; -} - static void setup_delta_attr_check(struct git_attr_check *check) { static struct git_attr *attr_delta; @@ -822,42 +913,67 @@ static int no_try_delta(const char *path) return 0; } -static int add_object_entry(const unsigned char *sha1, enum object_type type, - const char *name, int exclude) +/* + * When adding an object, check whether we have already added it + * to our packing list. If so, we can skip. However, if we are + * being asked to excludei t, but the previous mention was to include + * it, make sure to adjust its flags and tweak our numbers accordingly. + * + * As an optimization, we pass out the index position where we would have + * found the item, since that saves us from having to look it up again a + * few lines later when we want to add the new entry. + */ +static int have_duplicate_entry(const unsigned char *sha1, + int exclude, + uint32_t *index_pos) { struct object_entry *entry; - struct packed_git *p, *found_pack = NULL; - off_t found_offset = 0; - int ix; - unsigned hash = name_hash(name); - - ix = nr_objects ? locate_object_entry_hash(sha1) : -1; - if (ix >= 0) { - if (exclude) { - entry = objects + object_ix[ix] - 1; - if (!entry->preferred_base) - nr_result--; - entry->preferred_base = 1; - } + + entry = packlist_find(&to_pack, sha1, index_pos); + if (!entry) return 0; + + if (exclude) { + if (!entry->preferred_base) + nr_result--; + entry->preferred_base = 1; } + return 1; +} + +/* + * Check whether we want the object in the pack (e.g., we do not want + * objects found in non-local stores if the "--local" option was used). + * + * As a side effect of this check, we will find the packed version of this + * object, if any. We therefore pass out the pack information to avoid having + * to look it up again later. + */ +static int want_object_in_pack(const unsigned char *sha1, + int exclude, + struct packed_git **found_pack, + off_t *found_offset) +{ + struct packed_git *p; + if (!exclude && local && has_loose_object_nonlocal(sha1)) return 0; + *found_pack = NULL; + *found_offset = 0; + for (p = packed_git; p; p = p->next) { off_t offset = find_pack_entry_one(sha1, p); if (offset) { - if (!found_pack) { - if (!is_pack_valid(p)) { - warning("packfile %s cannot be accessed", p->pack_name); + if (!*found_pack) { + if (!is_pack_valid(p)) continue; - } - found_offset = offset; - found_pack = p; + *found_offset = offset; + *found_pack = p; } if (exclude) - break; + return 1; if (incremental) return 0; if (local && !p->pack_local) @@ -867,14 +983,21 @@ static int add_object_entry(const unsigned char *sha1, enum object_type type, } } - if (nr_objects >= nr_alloc) { - nr_alloc = (nr_alloc + 1024) * 3 / 2; - objects = xrealloc(objects, nr_alloc * sizeof(*entry)); - } + return 1; +} - entry = objects + nr_objects++; - memset(entry, 0, sizeof(*entry)); - hashcpy(entry->idx.sha1, sha1); +static void create_object_entry(const unsigned char *sha1, + enum object_type type, + uint32_t hash, + int exclude, + int no_try_delta, + uint32_t index_pos, + struct packed_git *found_pack, + off_t found_offset) +{ + struct object_entry *entry; + + entry = packlist_alloc(&to_pack, sha1, index_pos); entry->hash = hash; if (type) entry->type = type; @@ -887,16 +1010,53 @@ static int add_object_entry(const unsigned char *sha1, enum object_type type, entry->in_pack_offset = found_offset; } - if (object_ix_hashsz * 3 <= nr_objects * 4) - rehash_objects(); - else - object_ix[-1 - ix] = nr_objects; + entry->no_try_delta = no_try_delta; +} + +static const char no_closure_warning[] = N_( +"disabling bitmap writing, as some objects are not being packed" +); + +static int add_object_entry(const unsigned char *sha1, enum object_type type, + const char *name, int exclude) +{ + struct packed_git *found_pack; + off_t found_offset; + uint32_t index_pos; + + if (have_duplicate_entry(sha1, exclude, &index_pos)) + return 0; - display_progress(progress_state, nr_objects); + if (!want_object_in_pack(sha1, exclude, &found_pack, &found_offset)) { + /* The pack is missing an object, so it will not have closure */ + if (write_bitmap_index) { + warning(_(no_closure_warning)); + write_bitmap_index = 0; + } + return 0; + } - if (name && no_try_delta(name)) - entry->no_try_delta = 1; + create_object_entry(sha1, type, pack_name_hash(name), + exclude, name && no_try_delta(name), + index_pos, found_pack, found_offset); + display_progress(progress_state, nr_result); + return 1; +} + +static int add_object_entry_from_bitmap(const unsigned char *sha1, + enum object_type type, + int flags, uint32_t name_hash, + struct packed_git *pack, off_t offset) +{ + uint32_t index_pos; + + if (have_duplicate_entry(sha1, 0, &index_pos)) + return 0; + + create_object_entry(sha1, type, name_hash, 0, 0, index_pos, pack, offset); + + display_progress(progress_state, nr_result); return 1; } @@ -921,7 +1081,7 @@ static int pbase_tree_cache_ix_incr(int ix) static struct pbase_tree { struct pbase_tree *next; /* This is a phony "cache" entry; we are not - * going to evict it nor find it through _get() + * going to evict it or find it through _get() * mechanism -- this is for the toplevel node that * would almost always change with any commit. */ @@ -1031,7 +1191,7 @@ static void add_pbase_object(struct tree_desc *tree, if (cmp < 0) return; if (name[cmplen] != '/') { - add_object_entry(entry.sha1, + add_object_entry(entry.oid->hash, object_type(entry.mode), fullname, 1); return; @@ -1042,7 +1202,7 @@ static void add_pbase_object(struct tree_desc *tree, const char *down = name+cmplen+1; int downlen = name_cmp_len(down); - tree = pbase_tree_get(entry.sha1); + tree = pbase_tree_get(entry.oid->hash); if (!tree) return; init_tree_desc(&sub, tree->tree_data, tree->tree_size); @@ -1078,12 +1238,9 @@ static int check_pbase_path(unsigned hash) if (0 <= pos) return 1; pos = -pos - 1; - if (done_pbase_paths_alloc <= done_pbase_paths_num) { - done_pbase_paths_alloc = alloc_nr(done_pbase_paths_alloc); - done_pbase_paths = xrealloc(done_pbase_paths, - done_pbase_paths_alloc * - sizeof(unsigned)); - } + ALLOC_GROW(done_pbase_paths, + done_pbase_paths_num + 1, + done_pbase_paths_alloc); done_pbase_paths_num++; if (pos < done_pbase_paths_num) memmove(done_pbase_paths + pos + 1, @@ -1097,7 +1254,7 @@ static void add_preferred_base_object(const char *name) { struct pbase_tree *it; int cmplen; - unsigned hash = name_hash(name); + unsigned hash = pack_name_hash(name); if (!num_preferred_base || check_pbase_path(hash)) return; @@ -1249,7 +1406,7 @@ static void check_object(struct object_entry *entry) break; } - if (base_ref && (base_entry = locate_object_entry(base_ref))) { + if (base_ref && (base_entry = packlist_find(&to_pack, base_ref, NULL))) { /* * If base_ref was set above that means we wish to * reuse delta data, and we even found that base @@ -1323,15 +1480,15 @@ static void get_object_details(void) uint32_t i; struct object_entry **sorted_by_offset; - sorted_by_offset = xcalloc(nr_objects, sizeof(struct object_entry *)); - for (i = 0; i < nr_objects; i++) - sorted_by_offset[i] = objects + i; - qsort(sorted_by_offset, nr_objects, sizeof(*sorted_by_offset), pack_offset_sort); + sorted_by_offset = xcalloc(to_pack.nr_objects, sizeof(struct object_entry *)); + for (i = 0; i < to_pack.nr_objects; i++) + sorted_by_offset[i] = to_pack.objects + i; + qsort(sorted_by_offset, to_pack.nr_objects, sizeof(*sorted_by_offset), pack_offset_sort); - for (i = 0; i < nr_objects; i++) { + for (i = 0; i < to_pack.nr_objects; i++) { struct object_entry *entry = sorted_by_offset[i]; check_object(entry); - if (big_file_threshold <= entry->size) + if (big_file_threshold < entry->size) entry->no_try_delta = 1; } @@ -1434,11 +1591,16 @@ static int try_delta(struct unpacked *trg, struct unpacked *src, return -1; /* - * We do not bother to try a delta that we discarded - * on an earlier try, but only when reusing delta data. + * We do not bother to try a delta that we discarded on an + * earlier try, but only when reusing delta data. Note that + * src_entry that is marked as the preferred_base should always + * be considered, as even if we produce a suboptimal delta against + * it, we will still save the transfer cost, as we already know + * the other side has it and we won't send src_entry at all. */ if (reuse_delta && trg_entry->in_pack && trg_entry->in_pack == src_entry->in_pack && + !src_entry->preferred_base && trg_entry->in_pack_type != OBJ_REF_DELTA && trg_entry->in_pack_type != OBJ_OFS_DELTA) return 0; @@ -1725,7 +1887,7 @@ static void find_deltas(struct object_entry **list, unsigned *list_size, static void try_to_free_from_threads(size_t size) { read_lock(); - release_pack_memory(size, -1); + release_pack_memory(size); read_unlock(); } @@ -1816,8 +1978,6 @@ static void ll_find_deltas(struct object_entry **list, unsigned list_size, init_threaded_search(); - if (!delta_search_threads) /* --threads=0 means autodetect */ - delta_search_threads = online_cpus(); if (delta_search_threads <= 1) { find_deltas(list, &list_size, window, depth, processed); cleanup_threaded_search(); @@ -1943,15 +2103,14 @@ static void ll_find_deltas(struct object_entry **list, unsigned list_size, #define ll_find_deltas(l, s, w, d, p) find_deltas(l, &s, w, d, p) #endif -static int add_ref_tag(const char *path, const unsigned char *sha1, int flag, void *cb_data) +static int add_ref_tag(const char *path, const struct object_id *oid, int flag, void *cb_data) { - unsigned char peeled[20]; + struct object_id peeled; - if (!prefixcmp(path, "refs/tags/") && /* is a tag? */ - !peel_ref(path, peeled) && /* peelable? */ - !is_null_sha1(peeled) && /* annotated tag? */ - locate_object_entry(peeled)) /* object packed? */ - add_object_entry(sha1, OBJ_TAG, NULL, 0); + if (starts_with(path, "refs/tags/") && /* is a tag? */ + !peel_ref(path, peeled.hash) && /* peelable? */ + packlist_find(&to_pack, peeled.hash, NULL)) /* object packed? */ + add_object_entry(oid->hash, OBJ_TAG, NULL, 0); return 0; } @@ -1973,14 +2132,14 @@ static void prepare_pack(int window, int depth) if (!pack_to_stdout) do_check_packed_object_crc = 1; - if (!nr_objects || !window || !depth) + if (!to_pack.nr_objects || !window || !depth) return; - delta_list = xmalloc(nr_objects * sizeof(*delta_list)); + ALLOC_ARRAY(delta_list, to_pack.nr_objects); nr_deltas = n = 0; - for (i = 0; i < nr_objects; i++) { - struct object_entry *entry = objects + i; + for (i = 0; i < to_pack.nr_objects; i++) { + struct object_entry *entry = to_pack.objects + i; if (entry->delta) /* This happens if we decided to reuse existing @@ -2015,7 +2174,7 @@ static void prepare_pack(int window, int depth) if (nr_deltas && n > 1) { unsigned nr_done = 0; if (progress) - progress_state = start_progress("Compressing objects", + progress_state = start_progress(_("Compressing objects"), nr_deltas); qsort(delta_list, n, sizeof(*delta_list), type_size_sort); ll_find_deltas(delta_list, n, window+1, depth, &nr_done); @@ -2058,6 +2217,16 @@ static int git_pack_config(const char *k, const char *v, void *cb) cache_max_small_delta_size = git_config_int(k, v); return 0; } + if (!strcmp(k, "pack.writebitmaphashcache")) { + if (git_config_bool(k, v)) + write_bitmap_options |= BITMAP_OPT_HASH_CACHE; + else + write_bitmap_options &= ~BITMAP_OPT_HASH_CACHE; + } + if (!strcmp(k, "pack.usebitmaps")) { + use_bitmap_index = git_config_bool(k, v); + return 0; + } if (!strcmp(k, "pack.threads")) { delta_search_threads = git_config_int(k, v); if (delta_search_threads < 0) @@ -2114,30 +2283,23 @@ static void read_object_list_from_stdin(void) static void show_commit(struct commit *commit, void *data) { - add_object_entry(commit->object.sha1, OBJ_COMMIT, NULL, 0); + add_object_entry(commit->object.oid.hash, OBJ_COMMIT, NULL, 0); commit->object.flags |= OBJECT_ADDED; + + if (write_bitmap_index) + index_commit_for_bitmap(commit); } -static void show_object(struct object *obj, - const struct name_path *path, const char *last, - void *data) +static void show_object(struct object *obj, const char *name, void *data) { - char *name = path_name(path, last); - add_preferred_base_object(name); - add_object_entry(obj->sha1, obj->type, name, 0); + add_object_entry(obj->oid.hash, obj->type, name, 0); obj->flags |= OBJECT_ADDED; - - /* - * We will have generated the hash from the name, - * but not saved a pointer to it - we can free it - */ - free((char *)name); } static void show_edge(struct commit *commit) { - add_preferred_base(commit->object.sha1); + add_preferred_base(commit->object.oid.hash); } struct in_pack_object { @@ -2153,7 +2315,7 @@ struct in_pack { static void mark_in_pack_object(struct object *object, struct packed_git *p, struct in_pack *in_pack) { - in_pack->array[in_pack->nr].offset = find_pack_entry_one(object->sha1, p); + in_pack->array[in_pack->nr].offset = find_pack_entry_one(object->oid.hash, p); in_pack->array[in_pack->nr].object = object; in_pack->nr++; } @@ -2172,7 +2334,7 @@ static int ofscmp(const void *a_, const void *b_) else if (a->offset > b->offset) return 1; else - return hashcmp(a->object->sha1, b->object->sha1); + return oidcmp(&a->object->oid, &b->object->oid); } static void add_objects_in_unpacked_packs(struct rev_info *revs) @@ -2210,7 +2372,7 @@ static void add_objects_in_unpacked_packs(struct rev_info *revs) ofscmp); for (i = 0; i < in_pack.nr; i++) { struct object *o = in_pack.array[i].object; - add_object_entry(o->sha1, o->type, "", 0); + add_object_entry(o->oid.hash, o->type, "", 0); } } free(in_pack.array); @@ -2239,6 +2401,27 @@ static int has_sha1_pack_kept_or_nonlocal(const unsigned char *sha1) return 0; } +/* + * Store a list of sha1s that are should not be discarded + * because they are either written too recently, or are + * reachable from another object that was. + * + * This is filled by get_object_list. + */ +static struct sha1_array recent_objects; + +static int loosened_object_can_be_discarded(const unsigned char *sha1, + unsigned long mtime) +{ + if (!unpack_unreachable_expiration) + return 0; + if (mtime > unpack_unreachable_expiration) + return 0; + if (sha1_array_lookup(&recent_objects, sha1) >= 0) + return 0; + return 1; +} + static void loosen_unused_packed_objects(struct rev_info *revs) { struct packed_git *p; @@ -2254,14 +2437,56 @@ static void loosen_unused_packed_objects(struct rev_info *revs) for (i = 0; i < p->num_objects; i++) { sha1 = nth_packed_object_sha1(p, i); - if (!locate_object_entry(sha1) && - !has_sha1_pack_kept_or_nonlocal(sha1)) + if (!packlist_find(&to_pack, sha1, NULL) && + !has_sha1_pack_kept_or_nonlocal(sha1) && + !loosened_object_can_be_discarded(sha1, p->mtime)) if (force_object_loose(sha1, p->mtime)) die("unable to force loose object"); } } } +/* + * This tracks any options which a reader of the pack might + * not understand, and which would therefore prevent blind reuse + * of what we have on disk. + */ +static int pack_options_allow_reuse(void) +{ + return allow_ofs_delta; +} + +static int get_object_list_from_bitmap(struct rev_info *revs) +{ + if (prepare_bitmap_walk(revs) < 0) + return -1; + + if (pack_options_allow_reuse() && + !reuse_partial_packfile_from_bitmap( + &reuse_packfile, + &reuse_packfile_objects, + &reuse_packfile_offset)) { + assert(reuse_packfile_objects); + nr_result += reuse_packfile_objects; + display_progress(progress_state, nr_result); + } + + traverse_bitmap_commit_list(&add_object_entry_from_bitmap); + return 0; +} + +static void record_recent_object(struct object *obj, + const char *name, + void *data) +{ + sha1_array_append(&recent_objects, obj->oid.hash); +} + +static void record_recent_commit(struct commit *commit, void *data) +{ + sha1_array_append(&recent_objects, commit->object.oid.hash); +} + static void get_object_list(int ac, const char **av) { struct rev_info revs; @@ -2272,6 +2497,9 @@ static void get_object_list(int ac, const char **av) save_commit_buffer = 0; setup_revisions(ac, av, &revs, NULL); + /* make sure shallows are read */ + is_repository_shallow(); + while (fgets(line, sizeof(line), stdin) != NULL) { int len = strlen(line); if (len && line[len - 1] == '\n') @@ -2281,42 +2509,165 @@ static void get_object_list(int ac, const char **av) if (*line == '-') { if (!strcmp(line, "--not")) { flags ^= UNINTERESTING; + write_bitmap_index = 0; + continue; + } + if (starts_with(line, "--shallow ")) { + unsigned char sha1[20]; + if (get_sha1_hex(line + 10, sha1)) + die("not an SHA-1 '%s'", line + 10); + register_shallow(sha1); + use_bitmap_index = 0; continue; } die("not a rev '%s'", line); } - if (handle_revision_arg(line, &revs, flags, 1)) + if (handle_revision_arg(line, &revs, flags, REVARG_CANNOT_BE_FILENAME)) die("bad revision '%s'", line); } + if (use_bitmap_index && !get_object_list_from_bitmap(&revs)) + return; + if (prepare_revision_walk(&revs)) die("revision walk setup failed"); - mark_edges_uninteresting(revs.commits, &revs, show_edge); + mark_edges_uninteresting(&revs, show_edge); traverse_commit_list(&revs, show_commit, show_object, NULL); + if (unpack_unreachable_expiration) { + revs.ignore_missing_links = 1; + if (add_unseen_recent_objects_to_traversal(&revs, + unpack_unreachable_expiration)) + die("unable to add recent objects"); + if (prepare_revision_walk(&revs)) + die("revision walk setup failed"); + traverse_commit_list(&revs, record_recent_commit, + record_recent_object, NULL); + } + if (keep_unreachable) add_objects_in_unpacked_packs(&revs); if (unpack_unreachable) loosen_unused_packed_objects(&revs); + + sha1_array_clear(&recent_objects); +} + +static int option_parse_index_version(const struct option *opt, + const char *arg, int unset) +{ + char *c; + const char *val = arg; + pack_idx_opts.version = strtoul(val, &c, 10); + if (pack_idx_opts.version > 2) + die(_("unsupported index version %s"), val); + if (*c == ',' && c[1]) + pack_idx_opts.off32_limit = strtoul(c+1, &c, 0); + if (*c || pack_idx_opts.off32_limit & 0x80000000) + die(_("bad index version '%s'"), val); + return 0; +} + +static int option_parse_unpack_unreachable(const struct option *opt, + const char *arg, int unset) +{ + if (unset) { + unpack_unreachable = 0; + unpack_unreachable_expiration = 0; + } + else { + unpack_unreachable = 1; + if (arg) + unpack_unreachable_expiration = approxidate(arg); + } + return 0; } int cmd_pack_objects(int argc, const char **argv, const char *prefix) { int use_internal_rev_list = 0; int thin = 0; + int shallow = 0; int all_progress_implied = 0; - uint32_t i; - const char **rp_av; - int rp_ac_alloc = 64; - int rp_ac; - - read_replace_refs = 0; - - rp_av = xcalloc(rp_ac_alloc, sizeof(*rp_av)); + struct argv_array rp = ARGV_ARRAY_INIT; + int rev_list_unpacked = 0, rev_list_all = 0, rev_list_reflog = 0; + int rev_list_index = 0; + struct option pack_objects_options[] = { + OPT_SET_INT('q', "quiet", &progress, + N_("do not show progress meter"), 0), + OPT_SET_INT(0, "progress", &progress, + N_("show progress meter"), 1), + OPT_SET_INT(0, "all-progress", &progress, + N_("show progress meter during object writing phase"), 2), + OPT_BOOL(0, "all-progress-implied", + &all_progress_implied, + N_("similar to --all-progress when progress meter is shown")), + { OPTION_CALLBACK, 0, "index-version", NULL, N_("version[,offset]"), + N_("write the pack index file in the specified idx format version"), + 0, option_parse_index_version }, + OPT_MAGNITUDE(0, "max-pack-size", &pack_size_limit, + N_("maximum size of each output pack file")), + OPT_BOOL(0, "local", &local, + N_("ignore borrowed objects from alternate object store")), + OPT_BOOL(0, "incremental", &incremental, + N_("ignore packed objects")), + OPT_INTEGER(0, "window", &window, + N_("limit pack window by objects")), + OPT_MAGNITUDE(0, "window-memory", &window_memory_limit, + N_("limit pack window by memory in addition to object limit")), + OPT_INTEGER(0, "depth", &depth, + N_("maximum length of delta chain allowed in the resulting pack")), + OPT_BOOL(0, "reuse-delta", &reuse_delta, + N_("reuse existing deltas")), + OPT_BOOL(0, "reuse-object", &reuse_object, + N_("reuse existing objects")), + OPT_BOOL(0, "delta-base-offset", &allow_ofs_delta, + N_("use OFS_DELTA objects")), + OPT_INTEGER(0, "threads", &delta_search_threads, + N_("use threads when searching for best delta matches")), + OPT_BOOL(0, "non-empty", &non_empty, + N_("do not create an empty pack output")), + OPT_BOOL(0, "revs", &use_internal_rev_list, + N_("read revision arguments from standard input")), + { OPTION_SET_INT, 0, "unpacked", &rev_list_unpacked, NULL, + N_("limit the objects to those that are not yet packed"), + PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, 1 }, + { OPTION_SET_INT, 0, "all", &rev_list_all, NULL, + N_("include objects reachable from any reference"), + PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, 1 }, + { OPTION_SET_INT, 0, "reflog", &rev_list_reflog, NULL, + N_("include objects referred by reflog entries"), + PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, 1 }, + { OPTION_SET_INT, 0, "indexed-objects", &rev_list_index, NULL, + N_("include objects referred to by the index"), + PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, 1 }, + OPT_BOOL(0, "stdout", &pack_to_stdout, + N_("output pack to stdout")), + OPT_BOOL(0, "include-tag", &include_tag, + N_("include tag objects that refer to objects to be packed")), + OPT_BOOL(0, "keep-unreachable", &keep_unreachable, + N_("keep unreachable objects")), + { OPTION_CALLBACK, 0, "unpack-unreachable", NULL, N_("time"), + N_("unpack unreachable objects newer than <time>"), + PARSE_OPT_OPTARG, option_parse_unpack_unreachable }, + OPT_BOOL(0, "thin", &thin, + N_("create thin packs")), + OPT_BOOL(0, "shallow", &shallow, + N_("create packs suitable for shallow fetches")), + OPT_BOOL(0, "honor-pack-keep", &ignore_packed_keep, + N_("ignore packs that have companion .keep file")), + OPT_INTEGER(0, "compression", &pack_compression_level, + N_("pack compression level")), + OPT_SET_INT(0, "keep-true-parents", &grafts_replace_parents, + N_("do not hide commits by grafts"), 0), + OPT_BOOL(0, "use-bitmap-index", &use_bitmap_index, + N_("use a bitmap index if available to speed up counting objects")), + OPT_BOOL(0, "write-bitmap-index", &write_bitmap_index, + N_("write a bitmap index together with the pack index")), + OPT_END(), + }; - rp_av[0] = "pack-objects"; - rp_av[1] = "--objects"; /* --thin will make it --objects-edge */ - rp_ac = 2; + check_replace_refs = 0; reset_pack_idx_option(&pack_idx_opts); git_config(git_pack_config, NULL); @@ -2324,180 +2675,56 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) pack_compression_level = core_compression_level; progress = isatty(2); - for (i = 1; i < argc; i++) { - const char *arg = argv[i]; + argc = parse_options(argc, argv, prefix, pack_objects_options, + pack_usage, 0); - if (*arg != '-') - break; + if (argc) { + base_name = argv[0]; + argc--; + } + if (pack_to_stdout != !base_name || argc) + usage_with_options(pack_usage, pack_objects_options); - if (!strcmp("--non-empty", arg)) { - non_empty = 1; - continue; - } - if (!strcmp("--local", arg)) { - local = 1; - continue; - } - if (!strcmp("--incremental", arg)) { - incremental = 1; - continue; - } - if (!strcmp("--honor-pack-keep", arg)) { - ignore_packed_keep = 1; - continue; - } - if (!prefixcmp(arg, "--compression=")) { - char *end; - int level = strtoul(arg+14, &end, 0); - if (!arg[14] || *end) - usage(pack_usage); - if (level == -1) - level = Z_DEFAULT_COMPRESSION; - else if (level < 0 || level > Z_BEST_COMPRESSION) - die("bad pack compression level %d", level); - pack_compression_level = level; - continue; - } - if (!prefixcmp(arg, "--max-pack-size=")) { - pack_size_limit_cfg = 0; - if (!git_parse_ulong(arg+16, &pack_size_limit)) - usage(pack_usage); - continue; - } - if (!prefixcmp(arg, "--window=")) { - char *end; - window = strtoul(arg+9, &end, 0); - if (!arg[9] || *end) - usage(pack_usage); - continue; - } - if (!prefixcmp(arg, "--window-memory=")) { - if (!git_parse_ulong(arg+16, &window_memory_limit)) - usage(pack_usage); - continue; - } - if (!prefixcmp(arg, "--threads=")) { - char *end; - delta_search_threads = strtoul(arg+10, &end, 0); - if (!arg[10] || *end || delta_search_threads < 0) - usage(pack_usage); -#ifdef NO_PTHREADS - if (delta_search_threads != 1) - warning("no threads support, " - "ignoring %s", arg); -#endif - continue; - } - if (!prefixcmp(arg, "--depth=")) { - char *end; - depth = strtoul(arg+8, &end, 0); - if (!arg[8] || *end) - usage(pack_usage); - continue; - } - if (!strcmp("--progress", arg)) { - progress = 1; - continue; - } - if (!strcmp("--all-progress", arg)) { - progress = 2; - continue; - } - if (!strcmp("--all-progress-implied", arg)) { - all_progress_implied = 1; - continue; - } - if (!strcmp("-q", arg)) { - progress = 0; - continue; - } - if (!strcmp("--no-reuse-delta", arg)) { - reuse_delta = 0; - continue; - } - if (!strcmp("--no-reuse-object", arg)) { - reuse_object = reuse_delta = 0; - continue; - } - if (!strcmp("--delta-base-offset", arg)) { - allow_ofs_delta = 1; - continue; - } - if (!strcmp("--stdout", arg)) { - pack_to_stdout = 1; - continue; - } - if (!strcmp("--revs", arg)) { - use_internal_rev_list = 1; - continue; - } - if (!strcmp("--keep-unreachable", arg)) { - keep_unreachable = 1; - continue; - } - if (!strcmp("--unpack-unreachable", arg)) { - unpack_unreachable = 1; - continue; - } - if (!strcmp("--include-tag", arg)) { - include_tag = 1; - continue; - } - if (!strcmp("--unpacked", arg) || - !strcmp("--reflog", arg) || - !strcmp("--all", arg)) { - use_internal_rev_list = 1; - if (rp_ac >= rp_ac_alloc - 1) { - rp_ac_alloc = alloc_nr(rp_ac_alloc); - rp_av = xrealloc(rp_av, - rp_ac_alloc * sizeof(*rp_av)); - } - rp_av[rp_ac++] = arg; - continue; - } - if (!strcmp("--thin", arg)) { - use_internal_rev_list = 1; - thin = 1; - rp_av[1] = "--objects-edge"; - continue; - } - if (!prefixcmp(arg, "--index-version=")) { - char *c; - pack_idx_opts.version = strtoul(arg + 16, &c, 10); - if (pack_idx_opts.version > 2) - die("bad %s", arg); - if (*c == ',') - pack_idx_opts.off32_limit = strtoul(c+1, &c, 0); - if (*c || pack_idx_opts.off32_limit & 0x80000000) - die("bad %s", arg); - continue; - } - if (!strcmp(arg, "--keep-true-parents")) { - grafts_replace_parents = 0; - continue; - } - usage(pack_usage); - } - - /* Traditionally "pack-objects [options] base extra" failed; - * we would however want to take refs parameter that would - * have been given to upstream rev-list ourselves, which means - * we somehow want to say what the base name is. So the - * syntax would be: - * - * pack-objects [options] base <refs...> - * - * in other words, we would treat the first non-option as the - * base_name and send everything else to the internal revision - * walker. - */ + argv_array_push(&rp, "pack-objects"); + if (thin) { + use_internal_rev_list = 1; + argv_array_push(&rp, shallow + ? "--objects-edge-aggressive" + : "--objects-edge"); + } else + argv_array_push(&rp, "--objects"); - if (!pack_to_stdout) - base_name = argv[i++]; + if (rev_list_all) { + use_internal_rev_list = 1; + argv_array_push(&rp, "--all"); + } + if (rev_list_reflog) { + use_internal_rev_list = 1; + argv_array_push(&rp, "--reflog"); + } + if (rev_list_index) { + use_internal_rev_list = 1; + argv_array_push(&rp, "--indexed-objects"); + } + if (rev_list_unpacked) { + use_internal_rev_list = 1; + argv_array_push(&rp, "--unpacked"); + } + + if (!reuse_object) + reuse_delta = 0; + if (pack_compression_level == -1) + pack_compression_level = Z_DEFAULT_COMPRESSION; + else if (pack_compression_level < 0 || pack_compression_level > Z_BEST_COMPRESSION) + die("bad pack compression level %d", pack_compression_level); - if (pack_to_stdout != !base_name) - usage(pack_usage); + if (!delta_search_threads) /* --threads=0 means autodetect */ + delta_search_threads = online_cpus(); +#ifdef NO_PTHREADS + if (delta_search_threads != 1) + warning("no threads support, ignoring --threads"); +#endif if (!pack_to_stdout && !pack_size_limit) pack_size_limit = pack_size_limit_cfg; if (pack_to_stdout && pack_size_limit) @@ -2512,6 +2739,14 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) if (keep_unreachable && unpack_unreachable) die("--keep-unreachable and --unpack-unreachable are incompatible."); + if (!rev_list_all || !rev_list_reflog || !rev_list_index) + unpack_unreachable_expiration = 0; + + if (!use_internal_rev_list || !pack_to_stdout || is_repository_shallow()) + use_bitmap_index = 0; + + if (pack_to_stdout || !rev_list_all) + write_bitmap_index = 0; if (progress && all_progress_implied) progress = 2; @@ -2519,12 +2754,12 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) prepare_packed_git(); if (progress) - progress_state = start_progress("Counting objects", 0); + progress_state = start_progress(_("Counting objects"), 0); if (!use_internal_rev_list) read_object_list_from_stdin(); else { - rp_av[rp_ac] = NULL; - get_object_list(rp_ac, rp_av); + get_object_list(rp.argc, rp.argv); + argv_array_clear(&rp); } cleanup_preferred_base(); if (include_tag && nr_result) diff --git a/builtin/pack-redundant.c b/builtin/pack-redundant.c index f5c6afc5dd..72c815844d 100644 --- a/builtin/pack-redundant.c +++ b/builtin/pack-redundant.c @@ -11,7 +11,7 @@ #define BLKSIZE 512 static const char pack_redundant_usage[] = -"git pack-redundant [ --verbose ] [ --alt-odb ] < --all | <.pack filename> ...>"; +"git pack-redundant [--verbose] [--alt-odb] (--all | <filename.pack>...)"; static int load_all_packs, verbose, alt_odb; @@ -53,7 +53,7 @@ static inline struct llist_item *llist_item_get(void) free_nodes = free_nodes->next; } else { int i = 1; - new = xmalloc(sizeof(struct llist_item) * BLKSIZE); + ALLOC_ARRAY(new, BLKSIZE); for (; i < BLKSIZE; i++) llist_item_put(&new[i]); } @@ -301,14 +301,14 @@ static void pll_free(struct pll *l) */ static struct pll * get_permutations(struct pack_list *list, int n) { - struct pll *subset, *ret = NULL, *new_pll = NULL, *pll; + struct pll *subset, *ret = NULL, *new_pll = NULL; if (list == NULL || pack_list_size(list) < n || n == 0) return NULL; if (n == 1) { while (list) { - new_pll = xmalloc(sizeof(pll)); + new_pll = xmalloc(sizeof(*new_pll)); new_pll->pl = NULL; pack_list_insert(&new_pll->pl, list); new_pll->next = ret; @@ -321,7 +321,7 @@ static struct pll * get_permutations(struct pack_list *list, int n) while (list->next) { subset = get_permutations(list->next, n - 1); while (subset) { - new_pll = xmalloc(sizeof(pll)); + new_pll = xmalloc(sizeof(*new_pll)); new_pll->pl = subset->pl; pack_list_insert(&new_pll->pl, list); new_pll->next = ret; diff --git a/builtin/pack-refs.c b/builtin/pack-refs.c index 39a9d89fbd..39f9a55d16 100644 --- a/builtin/pack-refs.c +++ b/builtin/pack-refs.c @@ -1,9 +1,9 @@ #include "builtin.h" #include "parse-options.h" -#include "pack-refs.h" +#include "refs.h" static char const * const pack_refs_usage[] = { - "git pack-refs [options]", + N_("git pack-refs [<options>]"), NULL }; @@ -11,8 +11,8 @@ int cmd_pack_refs(int argc, const char **argv, const char *prefix) { unsigned int flags = PACK_REFS_PRUNE; struct option opts[] = { - OPT_BIT(0, "all", &flags, "pack everything", PACK_REFS_ALL), - OPT_BIT(0, "prune", &flags, "prune loose refs (default)", PACK_REFS_PRUNE), + OPT_BIT(0, "all", &flags, N_("pack everything"), PACK_REFS_ALL), + OPT_BIT(0, "prune", &flags, N_("prune loose refs (default)"), PACK_REFS_PRUNE), OPT_END(), }; if (parse_options(argc, argv, prefix, opts, pack_refs_usage, 0)) diff --git a/builtin/patch-id.c b/builtin/patch-id.c index 3cfe02d5a5..a84d0003a3 100644 --- a/builtin/patch-id.c +++ b/builtin/patch-id.c @@ -1,17 +1,14 @@ #include "builtin.h" -static void flush_current_id(int patchlen, unsigned char *id, git_SHA_CTX *c) +static void flush_current_id(int patchlen, struct object_id *id, struct object_id *result) { - unsigned char result[20]; char name[50]; if (!patchlen) return; - git_SHA1_Final(result, c); - memcpy(name, sha1_to_hex(id), 41); - printf("%s %s\n", sha1_to_hex(result), name); - git_SHA1_Init(c); + memcpy(name, oid_to_hex(id), GIT_SHA1_HEXSZ + 1); + printf("%s %s\n", oid_to_hex(result), name); } static int remove_space(char *line) @@ -56,39 +53,57 @@ static int scan_hunk_header(const char *p, int *p_before, int *p_after) return 1; } -static int get_one_patchid(unsigned char *next_sha1, git_SHA_CTX *ctx, struct strbuf *line_buf) +static void flush_one_hunk(struct object_id *result, git_SHA_CTX *ctx) +{ + unsigned char hash[GIT_SHA1_RAWSZ]; + unsigned short carry = 0; + int i; + + git_SHA1_Final(hash, ctx); + git_SHA1_Init(ctx); + /* 20-byte sum, with carry */ + for (i = 0; i < GIT_SHA1_RAWSZ; ++i) { + carry += result->hash[i] + hash[i]; + result->hash[i] = carry; + carry >>= 8; + } +} + +static int get_one_patchid(struct object_id *next_oid, struct object_id *result, + struct strbuf *line_buf, int stable) { int patchlen = 0, found_next = 0; int before = -1, after = -1; + git_SHA_CTX ctx; + + git_SHA1_Init(&ctx); + oidclr(result); while (strbuf_getwholeline(line_buf, stdin, '\n') != EOF) { char *line = line_buf->buf; - char *p = line; + const char *p = line; int len; - if (!memcmp(line, "diff-tree ", 10)) - p += 10; - else if (!memcmp(line, "commit ", 7)) - p += 7; - else if (!memcmp(line, "From ", 5)) - p += 5; - else if (!memcmp(line, "\\ ", 2) && 12 < strlen(line)) + if (!skip_prefix(line, "diff-tree ", &p) && + !skip_prefix(line, "commit ", &p) && + !skip_prefix(line, "From ", &p) && + starts_with(line, "\\ ") && 12 < strlen(line)) continue; - if (!get_sha1_hex(p, next_sha1)) { + if (!get_oid_hex(p, next_oid)) { found_next = 1; break; } /* Ignore commit comments */ - if (!patchlen && memcmp(line, "diff ", 5)) + if (!patchlen && !starts_with(line, "diff ")) continue; /* Parsing diff header? */ if (before == -1) { - if (!memcmp(line, "index ", 6)) + if (starts_with(line, "index ")) continue; - else if (!memcmp(line, "--- ", 4)) + else if (starts_with(line, "--- ")) before = after = 1; else if (!isalpha(line[0])) break; @@ -96,17 +111,19 @@ static int get_one_patchid(unsigned char *next_sha1, git_SHA_CTX *ctx, struct st /* Looking for a valid hunk header? */ if (before == 0 && after == 0) { - if (!memcmp(line, "@@ -", 4)) { + if (starts_with(line, "@@ -")) { /* Parse next hunk, but ignore line numbers. */ scan_hunk_header(line, &before, &after); continue; } /* Split at the end of the patch. */ - if (memcmp(line, "diff ", 5)) + if (!starts_with(line, "diff ")) break; /* Else we're parsing another header. */ + if (stable) + flush_one_hunk(result, &ctx); before = after = -1; } @@ -119,39 +136,63 @@ static int get_one_patchid(unsigned char *next_sha1, git_SHA_CTX *ctx, struct st /* Compute the sha without whitespace */ len = remove_space(line); patchlen += len; - git_SHA1_Update(ctx, line, len); + git_SHA1_Update(&ctx, line, len); } if (!found_next) - hashclr(next_sha1); + oidclr(next_oid); + + flush_one_hunk(result, &ctx); return patchlen; } -static void generate_id_list(void) +static void generate_id_list(int stable) { - unsigned char sha1[20], n[20]; - git_SHA_CTX ctx; + struct object_id oid, n, result; int patchlen; struct strbuf line_buf = STRBUF_INIT; - git_SHA1_Init(&ctx); - hashclr(sha1); + oidclr(&oid); while (!feof(stdin)) { - patchlen = get_one_patchid(n, &ctx, &line_buf); - flush_current_id(patchlen, sha1, &ctx); - hashcpy(sha1, n); + patchlen = get_one_patchid(&n, &result, &line_buf, stable); + flush_current_id(patchlen, &oid, &result); + oidcpy(&oid, &n); } strbuf_release(&line_buf); } -static const char patch_id_usage[] = "git patch-id < patch"; +static const char patch_id_usage[] = "git patch-id [--stable | --unstable]"; + +static int git_patch_id_config(const char *var, const char *value, void *cb) +{ + int *stable = cb; + + if (!strcmp(var, "patchid.stable")) { + *stable = git_config_bool(var, value); + return 0; + } + + return git_default_config(var, value, cb); +} int cmd_patch_id(int argc, const char **argv, const char *prefix) { - if (argc != 1) + int stable = -1; + + git_config(git_patch_id_config, &stable); + + /* If nothing is set, default to unstable. */ + if (stable < 0) + stable = 0; + + if (argc == 2 && !strcmp(argv[1], "--stable")) + stable = 1; + else if (argc == 2 && !strcmp(argv[1], "--unstable")) + stable = 0; + else if (argc != 1) usage(patch_id_usage); - generate_id_list(); + generate_id_list(stable); return 0; } diff --git a/builtin/prune-packed.c b/builtin/prune-packed.c index f9463deec2..7cf900ea07 100644 --- a/builtin/prune-packed.c +++ b/builtin/prune-packed.c @@ -4,77 +4,58 @@ #include "parse-options.h" static const char * const prune_packed_usage[] = { - "git prune-packed [-n|--dry-run] [-q|--quiet]", + N_("git prune-packed [-n | --dry-run] [-q | --quiet]"), NULL }; -#define DRY_RUN 01 -#define VERBOSE 02 - static struct progress *progress; -static void prune_dir(int i, DIR *dir, char *pathname, int len, int opts) +static int prune_subdir(int nr, const char *path, void *data) +{ + int *opts = data; + display_progress(progress, nr + 1); + if (!(*opts & PRUNE_PACKED_DRY_RUN)) + rmdir(path); + return 0; +} + +static int prune_object(const unsigned char *sha1, const char *path, + void *data) { - struct dirent *de; - char hex[40]; + int *opts = data; + + if (!has_sha1_pack(sha1)) + return 0; - sprintf(hex, "%02x", i); - while ((de = readdir(dir)) != NULL) { - unsigned char sha1[20]; - if (strlen(de->d_name) != 38) - continue; - memcpy(hex+2, de->d_name, 38); - if (get_sha1_hex(hex, sha1)) - continue; - if (!has_sha1_pack(sha1)) - continue; - memcpy(pathname + len, de->d_name, 38); - if (opts & DRY_RUN) - printf("rm -f %s\n", pathname); - else - unlink_or_warn(pathname); - display_progress(progress, i + 1); - } - pathname[len] = 0; - rmdir(pathname); + if (*opts & PRUNE_PACKED_DRY_RUN) + printf("rm -f %s\n", path); + else + unlink_or_warn(path); + return 0; } void prune_packed_objects(int opts) { - int i; - static char pathname[PATH_MAX]; - const char *dir = get_object_directory(); - int len = strlen(dir); - - if (opts == VERBOSE) - progress = start_progress_delay("Removing duplicate objects", + if (opts & PRUNE_PACKED_VERBOSE) + progress = start_progress_delay(_("Removing duplicate objects"), 256, 95, 2); - if (len > PATH_MAX - 42) - die("impossible object directory"); - memcpy(pathname, dir, len); - if (len && pathname[len-1] != '/') - pathname[len++] = '/'; - for (i = 0; i < 256; i++) { - DIR *d; + for_each_loose_file_in_objdir(get_object_directory(), + prune_object, NULL, prune_subdir, &opts); - display_progress(progress, i + 1); - sprintf(pathname + len, "%02x/", i); - d = opendir(pathname); - if (!d) - continue; - prune_dir(i, d, pathname, len + 3, opts); - closedir(d); - } + /* Ensure we show 100% before finishing progress */ + display_progress(progress, 256); stop_progress(&progress); } int cmd_prune_packed(int argc, const char **argv, const char *prefix) { - int opts = isatty(2) ? VERBOSE : 0; + int opts = isatty(2) ? PRUNE_PACKED_VERBOSE : 0; const struct option prune_packed_options[] = { - OPT_BIT('n', "dry-run", &opts, "dry run", DRY_RUN), - OPT_NEGBIT('q', "quiet", &opts, "be quiet", VERBOSE), + OPT_BIT('n', "dry-run", &opts, N_("dry run"), + PRUNE_PACKED_DRY_RUN), + OPT_NEGBIT('q', "quiet", &opts, N_("be quiet"), + PRUNE_PACKED_VERBOSE), OPT_END() }; diff --git a/builtin/prune.c b/builtin/prune.c index 58d7cb8324..8f4f052285 100644 --- a/builtin/prune.c +++ b/builtin/prune.c @@ -6,10 +6,9 @@ #include "reachable.h" #include "parse-options.h" #include "progress.h" -#include "dir.h" static const char * const prune_usage[] = { - "git prune [-n] [-v] [--expire <time>] [--] [<head>...]", + N_("git prune [-n] [-v] [--expire <time>] [--] [<head>...]"), NULL }; static int show_only; @@ -17,26 +16,37 @@ static int verbose; static unsigned long expire; static int show_progress = -1; -static int prune_tmp_object(const char *path, const char *filename) +static int prune_tmp_file(const char *fullpath) { - const char *fullpath = mkpath("%s/%s", path, filename); struct stat st; if (lstat(fullpath, &st)) return error("Could not stat '%s'", fullpath); if (st.st_mtime > expire) return 0; - printf("Removing stale temporary file %s\n", fullpath); + if (show_only || verbose) + printf("Removing stale temporary file %s\n", fullpath); if (!show_only) unlink_or_warn(fullpath); return 0; } -static int prune_object(char *path, const char *filename, const unsigned char *sha1) +static int prune_object(const unsigned char *sha1, const char *fullpath, + void *data) { - const char *fullpath = mkpath("%s/%s", path, filename); struct stat st; - if (lstat(fullpath, &st)) - return error("Could not stat '%s'", fullpath); + + /* + * Do we know about this object? + * It must have been reachable + */ + if (lookup_object(sha1)) + return 0; + + if (lstat(fullpath, &st)) { + /* report errors, but do not stop pruning */ + error("Could not stat '%s'", fullpath); + return 0; + } if (st.st_mtime > expire) return 0; if (show_only || verbose) { @@ -49,56 +59,20 @@ static int prune_object(char *path, const char *filename, const unsigned char *s return 0; } -static int prune_dir(int i, char *path) +static int prune_cruft(const char *basename, const char *path, void *data) { - DIR *dir = opendir(path); - struct dirent *de; - - if (!dir) - return 0; - - while ((de = readdir(dir)) != NULL) { - char name[100]; - unsigned char sha1[20]; - - if (is_dot_or_dotdot(de->d_name)) - continue; - if (strlen(de->d_name) == 38) { - sprintf(name, "%02x", i); - memcpy(name+2, de->d_name, 39); - if (get_sha1_hex(name, sha1) < 0) - break; - - /* - * Do we know about this object? - * It must have been reachable - */ - if (lookup_object(sha1)) - continue; - - prune_object(path, de->d_name, sha1); - continue; - } - if (!prefixcmp(de->d_name, "tmp_obj_")) { - prune_tmp_object(path, de->d_name); - continue; - } - fprintf(stderr, "bad sha1 file: %s/%s\n", path, de->d_name); - } - if (!show_only) - rmdir(path); - closedir(dir); + if (starts_with(basename, "tmp_obj_")) + prune_tmp_file(path); + else + fprintf(stderr, "bad sha1 file: %s\n", path); return 0; } -static void prune_object_dir(const char *path) +static int prune_subdir(int nr, const char *path, void *data) { - int i; - for (i = 0; i < 256; i++) { - static char dir[4096]; - sprintf(dir, "%s/%02x", path, i); - prune_dir(i, dir); - } + if (!show_only) + rmdir(path); + return 0; } /* @@ -118,8 +92,8 @@ static void remove_temporary_files(const char *path) return; } while ((de = readdir(dir)) != NULL) - if (!prefixcmp(de->d_name, "tmp_")) - prune_tmp_object(path, de->d_name); + if (starts_with(de->d_name, "tmp_")) + prune_tmp_file(mkpath("%s/%s", path, de->d_name)); closedir(dir); } @@ -128,29 +102,32 @@ int cmd_prune(int argc, const char **argv, const char *prefix) struct rev_info revs; struct progress *progress = NULL; const struct option options[] = { - OPT__DRY_RUN(&show_only, "do not remove, show only"), - OPT__VERBOSE(&verbose, "report pruned objects"), - OPT_BOOL(0, "progress", &show_progress, "show progress"), - OPT_DATE(0, "expire", &expire, - "expire objects older than <time>"), + OPT__DRY_RUN(&show_only, N_("do not remove, show only")), + OPT__VERBOSE(&verbose, N_("report pruned objects")), + OPT_BOOL(0, "progress", &show_progress, N_("show progress")), + OPT_EXPIRY_DATE(0, "expire", &expire, + N_("expire objects older than <time>")), OPT_END() }; char *s; expire = ULONG_MAX; save_commit_buffer = 0; - read_replace_refs = 0; + check_replace_refs = 0; + ref_paranoia = 1; init_revisions(&revs, prefix); argc = parse_options(argc, argv, prefix, options, prune_usage, 0); + + if (repository_format_precious_objects) + die(_("cannot prune in a precious-objects repo")); + while (argc--) { unsigned char sha1[20]; const char *name = *argv++; if (!get_sha1(name, sha1)) { - struct object *object = parse_object(sha1); - if (!object) - die("bad object: %s", name); + struct object *object = parse_object_or_die(sha1, name); add_pending_object(&revs, object, ""); } else @@ -160,16 +137,21 @@ int cmd_prune(int argc, const char **argv, const char *prefix) if (show_progress == -1) show_progress = isatty(2); if (show_progress) - progress = start_progress_delay("Checking connectivity", 0, 0, 2); + progress = start_progress_delay(_("Checking connectivity"), 0, 0, 2); - mark_reachable_objects(&revs, 1, progress); + mark_reachable_objects(&revs, 1, expire, progress); stop_progress(&progress); - prune_object_dir(get_object_directory()); + for_each_loose_file_in_objdir(get_object_directory(), prune_object, + prune_cruft, prune_subdir, NULL); - prune_packed_objects(show_only); + prune_packed_objects(show_only ? PRUNE_PACKED_DRY_RUN : 0); remove_temporary_files(get_object_directory()); - s = xstrdup(mkpath("%s/pack", get_object_directory())); + s = mkpathdup("%s/pack", get_object_directory()); remove_temporary_files(s); free(s); + + if (is_repository_shallow()) + prune_shallow(show_only); + return 0; } diff --git a/builtin/pull.c b/builtin/pull.c new file mode 100644 index 0000000000..1d7333c8a1 --- /dev/null +++ b/builtin/pull.c @@ -0,0 +1,928 @@ +/* + * Builtin "git pull" + * + * Based on git-pull.sh by Junio C Hamano + * + * Fetch one or more remote refs and merge it/them into the current HEAD. + */ +#include "cache.h" +#include "builtin.h" +#include "parse-options.h" +#include "exec_cmd.h" +#include "run-command.h" +#include "sha1-array.h" +#include "remote.h" +#include "dir.h" +#include "refs.h" +#include "revision.h" +#include "tempfile.h" +#include "lockfile.h" + +enum rebase_type { + REBASE_INVALID = -1, + REBASE_FALSE = 0, + REBASE_TRUE, + REBASE_PRESERVE, + REBASE_INTERACTIVE +}; + +/** + * Parses the value of --rebase. If value is a false value, returns + * REBASE_FALSE. If value is a true value, returns REBASE_TRUE. If value is + * "preserve", returns REBASE_PRESERVE. If value is a invalid value, dies with + * a fatal error if fatal is true, otherwise returns REBASE_INVALID. + */ +static enum rebase_type parse_config_rebase(const char *key, const char *value, + int fatal) +{ + int v = git_config_maybe_bool("pull.rebase", value); + + if (!v) + return REBASE_FALSE; + else if (v > 0) + return REBASE_TRUE; + else if (!strcmp(value, "preserve")) + return REBASE_PRESERVE; + else if (!strcmp(value, "interactive")) + return REBASE_INTERACTIVE; + + if (fatal) + die(_("Invalid value for %s: %s"), key, value); + else + error(_("Invalid value for %s: %s"), key, value); + + return REBASE_INVALID; +} + +/** + * Callback for --rebase, which parses arg with parse_config_rebase(). + */ +static int parse_opt_rebase(const struct option *opt, const char *arg, int unset) +{ + enum rebase_type *value = opt->value; + + if (arg) + *value = parse_config_rebase("--rebase", arg, 0); + else + *value = unset ? REBASE_FALSE : REBASE_TRUE; + return *value == REBASE_INVALID ? -1 : 0; +} + +static const char * const pull_usage[] = { + N_("git pull [<options>] [<repository> [<refspec>...]]"), + NULL +}; + +/* Shared options */ +static int opt_verbosity; +static char *opt_progress; + +/* Options passed to git-merge or git-rebase */ +static enum rebase_type opt_rebase = -1; +static char *opt_diffstat; +static char *opt_log; +static char *opt_squash; +static char *opt_commit; +static char *opt_edit; +static char *opt_ff; +static char *opt_verify_signatures; +static int opt_autostash = -1; +static int config_autostash; +static struct argv_array opt_strategies = ARGV_ARRAY_INIT; +static struct argv_array opt_strategy_opts = ARGV_ARRAY_INIT; +static char *opt_gpg_sign; +static int opt_allow_unrelated_histories; + +/* Options passed to git-fetch */ +static char *opt_all; +static char *opt_append; +static char *opt_upload_pack; +static int opt_force; +static char *opt_tags; +static char *opt_prune; +static char *opt_recurse_submodules; +static char *max_children; +static int opt_dry_run; +static char *opt_keep; +static char *opt_depth; +static char *opt_unshallow; +static char *opt_update_shallow; +static char *opt_refmap; + +static struct option pull_options[] = { + /* Shared options */ + OPT__VERBOSITY(&opt_verbosity), + OPT_PASSTHRU(0, "progress", &opt_progress, NULL, + N_("force progress reporting"), + PARSE_OPT_NOARG), + + /* Options passed to git-merge or git-rebase */ + OPT_GROUP(N_("Options related to merging")), + { OPTION_CALLBACK, 'r', "rebase", &opt_rebase, + "false|true|preserve|interactive", + N_("incorporate changes by rebasing rather than merging"), + PARSE_OPT_OPTARG, parse_opt_rebase }, + OPT_PASSTHRU('n', NULL, &opt_diffstat, NULL, + N_("do not show a diffstat at the end of the merge"), + PARSE_OPT_NOARG | PARSE_OPT_NONEG), + OPT_PASSTHRU(0, "stat", &opt_diffstat, NULL, + N_("show a diffstat at the end of the merge"), + PARSE_OPT_NOARG), + OPT_PASSTHRU(0, "summary", &opt_diffstat, NULL, + N_("(synonym to --stat)"), + PARSE_OPT_NOARG | PARSE_OPT_HIDDEN), + OPT_PASSTHRU(0, "log", &opt_log, N_("n"), + N_("add (at most <n>) entries from shortlog to merge commit message"), + PARSE_OPT_OPTARG), + OPT_PASSTHRU(0, "squash", &opt_squash, NULL, + N_("create a single commit instead of doing a merge"), + PARSE_OPT_NOARG), + OPT_PASSTHRU(0, "commit", &opt_commit, NULL, + N_("perform a commit if the merge succeeds (default)"), + PARSE_OPT_NOARG), + OPT_PASSTHRU(0, "edit", &opt_edit, NULL, + N_("edit message before committing"), + PARSE_OPT_NOARG), + OPT_PASSTHRU(0, "ff", &opt_ff, NULL, + N_("allow fast-forward"), + PARSE_OPT_NOARG), + OPT_PASSTHRU(0, "ff-only", &opt_ff, NULL, + N_("abort if fast-forward is not possible"), + PARSE_OPT_NOARG | PARSE_OPT_NONEG), + OPT_PASSTHRU(0, "verify-signatures", &opt_verify_signatures, NULL, + N_("verify that the named commit has a valid GPG signature"), + PARSE_OPT_NOARG), + OPT_BOOL(0, "autostash", &opt_autostash, + N_("automatically stash/stash pop before and after rebase")), + OPT_PASSTHRU_ARGV('s', "strategy", &opt_strategies, N_("strategy"), + N_("merge strategy to use"), + 0), + OPT_PASSTHRU_ARGV('X', "strategy-option", &opt_strategy_opts, + N_("option=value"), + N_("option for selected merge strategy"), + 0), + OPT_PASSTHRU('S', "gpg-sign", &opt_gpg_sign, N_("key-id"), + N_("GPG sign commit"), + PARSE_OPT_OPTARG), + OPT_SET_INT(0, "allow-unrelated-histories", + &opt_allow_unrelated_histories, + N_("allow merging unrelated histories"), 1), + + /* Options passed to git-fetch */ + OPT_GROUP(N_("Options related to fetching")), + OPT_PASSTHRU(0, "all", &opt_all, NULL, + N_("fetch from all remotes"), + PARSE_OPT_NOARG), + OPT_PASSTHRU('a', "append", &opt_append, NULL, + N_("append to .git/FETCH_HEAD instead of overwriting"), + PARSE_OPT_NOARG), + OPT_PASSTHRU(0, "upload-pack", &opt_upload_pack, N_("path"), + N_("path to upload pack on remote end"), + 0), + OPT__FORCE(&opt_force, N_("force overwrite of local branch")), + OPT_PASSTHRU('t', "tags", &opt_tags, NULL, + N_("fetch all tags and associated objects"), + PARSE_OPT_NOARG), + OPT_PASSTHRU('p', "prune", &opt_prune, NULL, + N_("prune remote-tracking branches no longer on remote"), + PARSE_OPT_NOARG), + OPT_PASSTHRU(0, "recurse-submodules", &opt_recurse_submodules, + N_("on-demand"), + N_("control recursive fetching of submodules"), + PARSE_OPT_OPTARG), + OPT_PASSTHRU('j', "jobs", &max_children, N_("n"), + N_("number of submodules pulled in parallel"), + PARSE_OPT_OPTARG), + OPT_BOOL(0, "dry-run", &opt_dry_run, + N_("dry run")), + OPT_PASSTHRU('k', "keep", &opt_keep, NULL, + N_("keep downloaded pack"), + PARSE_OPT_NOARG), + OPT_PASSTHRU(0, "depth", &opt_depth, N_("depth"), + N_("deepen history of shallow clone"), + 0), + OPT_PASSTHRU(0, "unshallow", &opt_unshallow, NULL, + N_("convert to a complete repository"), + PARSE_OPT_NONEG | PARSE_OPT_NOARG), + OPT_PASSTHRU(0, "update-shallow", &opt_update_shallow, NULL, + N_("accept refs that update .git/shallow"), + PARSE_OPT_NOARG), + OPT_PASSTHRU(0, "refmap", &opt_refmap, N_("refmap"), + N_("specify fetch refmap"), + PARSE_OPT_NONEG), + + OPT_END() +}; + +/** + * Pushes "-q" or "-v" switches into arr to match the opt_verbosity level. + */ +static void argv_push_verbosity(struct argv_array *arr) +{ + int verbosity; + + for (verbosity = opt_verbosity; verbosity > 0; verbosity--) + argv_array_push(arr, "-v"); + + for (verbosity = opt_verbosity; verbosity < 0; verbosity++) + argv_array_push(arr, "-q"); +} + +/** + * Pushes "-f" switches into arr to match the opt_force level. + */ +static void argv_push_force(struct argv_array *arr) +{ + int force = opt_force; + while (force-- > 0) + argv_array_push(arr, "-f"); +} + +/** + * Sets the GIT_REFLOG_ACTION environment variable to the concatenation of argv + */ +static void set_reflog_message(int argc, const char **argv) +{ + int i; + struct strbuf msg = STRBUF_INIT; + + for (i = 0; i < argc; i++) { + if (i) + strbuf_addch(&msg, ' '); + strbuf_addstr(&msg, argv[i]); + } + + setenv("GIT_REFLOG_ACTION", msg.buf, 0); + + strbuf_release(&msg); +} + +/** + * If pull.ff is unset, returns NULL. If pull.ff is "true", returns "--ff". If + * pull.ff is "false", returns "--no-ff". If pull.ff is "only", returns + * "--ff-only". Otherwise, if pull.ff is set to an invalid value, die with an + * error. + */ +static const char *config_get_ff(void) +{ + const char *value; + + if (git_config_get_value("pull.ff", &value)) + return NULL; + + switch (git_config_maybe_bool("pull.ff", value)) { + case 0: + return "--no-ff"; + case 1: + return "--ff"; + } + + if (!strcmp(value, "only")) + return "--ff-only"; + + die(_("Invalid value for pull.ff: %s"), value); +} + +/** + * Returns the default configured value for --rebase. It first looks for the + * value of "branch.$curr_branch.rebase", where $curr_branch is the current + * branch, and if HEAD is detached or the configuration key does not exist, + * looks for the value of "pull.rebase". If both configuration keys do not + * exist, returns REBASE_FALSE. + */ +static enum rebase_type config_get_rebase(void) +{ + struct branch *curr_branch = branch_get("HEAD"); + const char *value; + + if (curr_branch) { + char *key = xstrfmt("branch.%s.rebase", curr_branch->name); + + if (!git_config_get_value(key, &value)) { + enum rebase_type ret = parse_config_rebase(key, value, 1); + free(key); + return ret; + } + + free(key); + } + + if (!git_config_get_value("pull.rebase", &value)) + return parse_config_rebase("pull.rebase", value, 1); + + return REBASE_FALSE; +} + +/** + * Read config variables. + */ +static int git_pull_config(const char *var, const char *value, void *cb) +{ + if (!strcmp(var, "rebase.autostash")) { + config_autostash = git_config_bool(var, value); + return 0; + } + return git_default_config(var, value, cb); +} + +/** + * Returns 1 if there are unstaged changes, 0 otherwise. + */ +static int has_unstaged_changes(const char *prefix) +{ + struct rev_info rev_info; + int result; + + init_revisions(&rev_info, prefix); + DIFF_OPT_SET(&rev_info.diffopt, IGNORE_SUBMODULES); + DIFF_OPT_SET(&rev_info.diffopt, QUICK); + diff_setup_done(&rev_info.diffopt); + result = run_diff_files(&rev_info, 0); + return diff_result_code(&rev_info.diffopt, result); +} + +/** + * Returns 1 if there are uncommitted changes, 0 otherwise. + */ +static int has_uncommitted_changes(const char *prefix) +{ + struct rev_info rev_info; + int result; + + if (is_cache_unborn()) + return 0; + + init_revisions(&rev_info, prefix); + DIFF_OPT_SET(&rev_info.diffopt, IGNORE_SUBMODULES); + DIFF_OPT_SET(&rev_info.diffopt, QUICK); + add_head_to_pending(&rev_info); + diff_setup_done(&rev_info.diffopt); + result = run_diff_index(&rev_info, 1); + return diff_result_code(&rev_info.diffopt, result); +} + +/** + * If the work tree has unstaged or uncommitted changes, dies with the + * appropriate message. + */ +static void die_on_unclean_work_tree(const char *prefix) +{ + struct lock_file *lock_file = xcalloc(1, sizeof(*lock_file)); + int do_die = 0; + + hold_locked_index(lock_file, 0); + refresh_cache(REFRESH_QUIET); + update_index_if_able(&the_index, lock_file); + rollback_lock_file(lock_file); + + if (has_unstaged_changes(prefix)) { + error(_("Cannot pull with rebase: You have unstaged changes.")); + do_die = 1; + } + + if (has_uncommitted_changes(prefix)) { + if (do_die) + error(_("Additionally, your index contains uncommitted changes.")); + else + error(_("Cannot pull with rebase: Your index contains uncommitted changes.")); + do_die = 1; + } + + if (do_die) + exit(1); +} + +/** + * Appends merge candidates from FETCH_HEAD that are not marked not-for-merge + * into merge_heads. + */ +static void get_merge_heads(struct sha1_array *merge_heads) +{ + const char *filename = git_path("FETCH_HEAD"); + FILE *fp; + struct strbuf sb = STRBUF_INIT; + unsigned char sha1[GIT_SHA1_RAWSZ]; + + if (!(fp = fopen(filename, "r"))) + die_errno(_("could not open '%s' for reading"), filename); + while (strbuf_getline_lf(&sb, fp) != EOF) { + if (get_sha1_hex(sb.buf, sha1)) + continue; /* invalid line: does not start with SHA1 */ + if (starts_with(sb.buf + GIT_SHA1_HEXSZ, "\tnot-for-merge\t")) + continue; /* ref is not-for-merge */ + sha1_array_append(merge_heads, sha1); + } + fclose(fp); + strbuf_release(&sb); +} + +/** + * Used by die_no_merge_candidates() as a for_each_remote() callback to + * retrieve the name of the remote if the repository only has one remote. + */ +static int get_only_remote(struct remote *remote, void *cb_data) +{ + const char **remote_name = cb_data; + + if (*remote_name) + return -1; + + *remote_name = remote->name; + return 0; +} + +/** + * Dies with the appropriate reason for why there are no merge candidates: + * + * 1. We fetched from a specific remote, and a refspec was given, but it ended + * up not fetching anything. This is usually because the user provided a + * wildcard refspec which had no matches on the remote end. + * + * 2. We fetched from a non-default remote, but didn't specify a branch to + * merge. We can't use the configured one because it applies to the default + * remote, thus the user must specify the branches to merge. + * + * 3. We fetched from the branch's or repo's default remote, but: + * + * a. We are not on a branch, so there will never be a configured branch to + * merge with. + * + * b. We are on a branch, but there is no configured branch to merge with. + * + * 4. We fetched from the branch's or repo's default remote, but the configured + * branch to merge didn't get fetched. (Either it doesn't exist, or wasn't + * part of the configured fetch refspec.) + */ +static void NORETURN die_no_merge_candidates(const char *repo, const char **refspecs) +{ + struct branch *curr_branch = branch_get("HEAD"); + const char *remote = curr_branch ? curr_branch->remote_name : NULL; + + if (*refspecs) { + if (opt_rebase) + fprintf_ln(stderr, _("There is no candidate for rebasing against among the refs that you just fetched.")); + else + fprintf_ln(stderr, _("There are no candidates for merging among the refs that you just fetched.")); + fprintf_ln(stderr, _("Generally this means that you provided a wildcard refspec which had no\n" + "matches on the remote end.")); + } else if (repo && curr_branch && (!remote || strcmp(repo, remote))) { + fprintf_ln(stderr, _("You asked to pull from the remote '%s', but did not specify\n" + "a branch. Because this is not the default configured remote\n" + "for your current branch, you must specify a branch on the command line."), + repo); + } else if (!curr_branch) { + fprintf_ln(stderr, _("You are not currently on a branch.")); + if (opt_rebase) + fprintf_ln(stderr, _("Please specify which branch you want to rebase against.")); + else + fprintf_ln(stderr, _("Please specify which branch you want to merge with.")); + fprintf_ln(stderr, _("See git-pull(1) for details.")); + fprintf(stderr, "\n"); + fprintf_ln(stderr, " git pull %s %s", _("<remote>"), _("<branch>")); + fprintf(stderr, "\n"); + } else if (!curr_branch->merge_nr) { + const char *remote_name = NULL; + + if (for_each_remote(get_only_remote, &remote_name) || !remote_name) + remote_name = _("<remote>"); + + fprintf_ln(stderr, _("There is no tracking information for the current branch.")); + if (opt_rebase) + fprintf_ln(stderr, _("Please specify which branch you want to rebase against.")); + else + fprintf_ln(stderr, _("Please specify which branch you want to merge with.")); + fprintf_ln(stderr, _("See git-pull(1) for details.")); + fprintf(stderr, "\n"); + fprintf_ln(stderr, " git pull %s %s", _("<remote>"), _("<branch>")); + fprintf(stderr, "\n"); + fprintf_ln(stderr, _("If you wish to set tracking information for this branch you can do so with:")); + fprintf(stderr, "\n"); + fprintf_ln(stderr, " git branch --set-upstream-to=%s/%s %s\n", + remote_name, _("<branch>"), curr_branch->name); + } else + fprintf_ln(stderr, _("Your configuration specifies to merge with the ref '%s'\n" + "from the remote, but no such ref was fetched."), + *curr_branch->merge_name); + exit(1); +} + +/** + * Parses argv into [<repo> [<refspecs>...]], returning their values in `repo` + * as a string and `refspecs` as a null-terminated array of strings. If `repo` + * is not provided in argv, it is set to NULL. + */ +static void parse_repo_refspecs(int argc, const char **argv, const char **repo, + const char ***refspecs) +{ + if (argc > 0) { + *repo = *argv++; + argc--; + } else + *repo = NULL; + *refspecs = argv; +} + +/** + * Runs git-fetch, returning its exit status. `repo` and `refspecs` are the + * repository and refspecs to fetch, or NULL if they are not provided. + */ +static int run_fetch(const char *repo, const char **refspecs) +{ + struct argv_array args = ARGV_ARRAY_INIT; + int ret; + + argv_array_pushl(&args, "fetch", "--update-head-ok", NULL); + + /* Shared options */ + argv_push_verbosity(&args); + if (opt_progress) + argv_array_push(&args, opt_progress); + + /* Options passed to git-fetch */ + if (opt_all) + argv_array_push(&args, opt_all); + if (opt_append) + argv_array_push(&args, opt_append); + if (opt_upload_pack) + argv_array_push(&args, opt_upload_pack); + argv_push_force(&args); + if (opt_tags) + argv_array_push(&args, opt_tags); + if (opt_prune) + argv_array_push(&args, opt_prune); + if (opt_recurse_submodules) + argv_array_push(&args, opt_recurse_submodules); + if (max_children) + argv_array_push(&args, max_children); + if (opt_dry_run) + argv_array_push(&args, "--dry-run"); + if (opt_keep) + argv_array_push(&args, opt_keep); + if (opt_depth) + argv_array_push(&args, opt_depth); + if (opt_unshallow) + argv_array_push(&args, opt_unshallow); + if (opt_update_shallow) + argv_array_push(&args, opt_update_shallow); + if (opt_refmap) + argv_array_push(&args, opt_refmap); + + if (repo) { + argv_array_push(&args, repo); + argv_array_pushv(&args, refspecs); + } else if (*refspecs) + die("BUG: refspecs without repo?"); + ret = run_command_v_opt(args.argv, RUN_GIT_CMD); + argv_array_clear(&args); + return ret; +} + +/** + * "Pulls into void" by branching off merge_head. + */ +static int pull_into_void(const unsigned char *merge_head, + const unsigned char *curr_head) +{ + /* + * Two-way merge: we treat the index as based on an empty tree, + * and try to fast-forward to HEAD. This ensures we will not lose + * index/worktree changes that the user already made on the unborn + * branch. + */ + if (checkout_fast_forward(EMPTY_TREE_SHA1_BIN, merge_head, 0)) + return 1; + + if (update_ref("initial pull", "HEAD", merge_head, curr_head, 0, UPDATE_REFS_DIE_ON_ERR)) + return 1; + + return 0; +} + +/** + * Runs git-merge, returning its exit status. + */ +static int run_merge(void) +{ + int ret; + struct argv_array args = ARGV_ARRAY_INIT; + + argv_array_pushl(&args, "merge", NULL); + + /* Shared options */ + argv_push_verbosity(&args); + if (opt_progress) + argv_array_push(&args, opt_progress); + + /* Options passed to git-merge */ + if (opt_diffstat) + argv_array_push(&args, opt_diffstat); + if (opt_log) + argv_array_push(&args, opt_log); + if (opt_squash) + argv_array_push(&args, opt_squash); + if (opt_commit) + argv_array_push(&args, opt_commit); + if (opt_edit) + argv_array_push(&args, opt_edit); + if (opt_ff) + argv_array_push(&args, opt_ff); + if (opt_verify_signatures) + argv_array_push(&args, opt_verify_signatures); + argv_array_pushv(&args, opt_strategies.argv); + argv_array_pushv(&args, opt_strategy_opts.argv); + if (opt_gpg_sign) + argv_array_push(&args, opt_gpg_sign); + if (opt_allow_unrelated_histories > 0) + argv_array_push(&args, "--allow-unrelated-histories"); + + argv_array_push(&args, "FETCH_HEAD"); + ret = run_command_v_opt(args.argv, RUN_GIT_CMD); + argv_array_clear(&args); + return ret; +} + +/** + * Returns remote's upstream branch for the current branch. If remote is NULL, + * the current branch's configured default remote is used. Returns NULL if + * `remote` does not name a valid remote, HEAD does not point to a branch, + * remote is not the branch's configured remote or the branch does not have any + * configured upstream branch. + */ +static const char *get_upstream_branch(const char *remote) +{ + struct remote *rm; + struct branch *curr_branch; + const char *curr_branch_remote; + + rm = remote_get(remote); + if (!rm) + return NULL; + + curr_branch = branch_get("HEAD"); + if (!curr_branch) + return NULL; + + curr_branch_remote = remote_for_branch(curr_branch, NULL); + assert(curr_branch_remote); + + if (strcmp(curr_branch_remote, rm->name)) + return NULL; + + return branch_get_upstream(curr_branch, NULL); +} + +/** + * Derives the remote tracking branch from the remote and refspec. + * + * FIXME: The current implementation assumes the default mapping of + * refs/heads/<branch_name> to refs/remotes/<remote_name>/<branch_name>. + */ +static const char *get_tracking_branch(const char *remote, const char *refspec) +{ + struct refspec *spec; + const char *spec_src; + const char *merge_branch; + + spec = parse_fetch_refspec(1, &refspec); + spec_src = spec->src; + if (!*spec_src || !strcmp(spec_src, "HEAD")) + spec_src = "HEAD"; + else if (skip_prefix(spec_src, "heads/", &spec_src)) + ; + else if (skip_prefix(spec_src, "refs/heads/", &spec_src)) + ; + else if (starts_with(spec_src, "refs/") || + starts_with(spec_src, "tags/") || + starts_with(spec_src, "remotes/")) + spec_src = ""; + + if (*spec_src) { + if (!strcmp(remote, ".")) + merge_branch = mkpath("refs/heads/%s", spec_src); + else + merge_branch = mkpath("refs/remotes/%s/%s", remote, spec_src); + } else + merge_branch = NULL; + + free_refspec(1, spec); + return merge_branch; +} + +/** + * Given the repo and refspecs, sets fork_point to the point at which the + * current branch forked from its remote tracking branch. Returns 0 on success, + * -1 on failure. + */ +static int get_rebase_fork_point(unsigned char *fork_point, const char *repo, + const char *refspec) +{ + int ret; + struct branch *curr_branch; + const char *remote_branch; + struct child_process cp = CHILD_PROCESS_INIT; + struct strbuf sb = STRBUF_INIT; + + curr_branch = branch_get("HEAD"); + if (!curr_branch) + return -1; + + if (refspec) + remote_branch = get_tracking_branch(repo, refspec); + else + remote_branch = get_upstream_branch(repo); + + if (!remote_branch) + return -1; + + argv_array_pushl(&cp.args, "merge-base", "--fork-point", + remote_branch, curr_branch->name, NULL); + cp.no_stdin = 1; + cp.no_stderr = 1; + cp.git_cmd = 1; + + ret = capture_command(&cp, &sb, GIT_SHA1_HEXSZ); + if (ret) + goto cleanup; + + ret = get_sha1_hex(sb.buf, fork_point); + if (ret) + goto cleanup; + +cleanup: + strbuf_release(&sb); + return ret ? -1 : 0; +} + +/** + * Sets merge_base to the octopus merge base of curr_head, merge_head and + * fork_point. Returns 0 if a merge base is found, 1 otherwise. + */ +static int get_octopus_merge_base(unsigned char *merge_base, + const unsigned char *curr_head, + const unsigned char *merge_head, + const unsigned char *fork_point) +{ + struct commit_list *revs = NULL, *result; + + commit_list_insert(lookup_commit_reference(curr_head), &revs); + commit_list_insert(lookup_commit_reference(merge_head), &revs); + if (!is_null_sha1(fork_point)) + commit_list_insert(lookup_commit_reference(fork_point), &revs); + + result = reduce_heads(get_octopus_merge_bases(revs)); + free_commit_list(revs); + if (!result) + return 1; + + hashcpy(merge_base, result->item->object.oid.hash); + return 0; +} + +/** + * Given the current HEAD SHA1, the merge head returned from git-fetch and the + * fork point calculated by get_rebase_fork_point(), runs git-rebase with the + * appropriate arguments and returns its exit status. + */ +static int run_rebase(const unsigned char *curr_head, + const unsigned char *merge_head, + const unsigned char *fork_point) +{ + int ret; + unsigned char oct_merge_base[GIT_SHA1_RAWSZ]; + struct argv_array args = ARGV_ARRAY_INIT; + + if (!get_octopus_merge_base(oct_merge_base, curr_head, merge_head, fork_point)) + if (!is_null_sha1(fork_point) && !hashcmp(oct_merge_base, fork_point)) + fork_point = NULL; + + argv_array_push(&args, "rebase"); + + /* Shared options */ + argv_push_verbosity(&args); + + /* Options passed to git-rebase */ + if (opt_rebase == REBASE_PRESERVE) + argv_array_push(&args, "--preserve-merges"); + else if (opt_rebase == REBASE_INTERACTIVE) + argv_array_push(&args, "--interactive"); + if (opt_diffstat) + argv_array_push(&args, opt_diffstat); + argv_array_pushv(&args, opt_strategies.argv); + argv_array_pushv(&args, opt_strategy_opts.argv); + if (opt_gpg_sign) + argv_array_push(&args, opt_gpg_sign); + if (opt_autostash == 0) + argv_array_push(&args, "--no-autostash"); + else if (opt_autostash == 1) + argv_array_push(&args, "--autostash"); + + argv_array_push(&args, "--onto"); + argv_array_push(&args, sha1_to_hex(merge_head)); + + if (fork_point && !is_null_sha1(fork_point)) + argv_array_push(&args, sha1_to_hex(fork_point)); + else + argv_array_push(&args, sha1_to_hex(merge_head)); + + ret = run_command_v_opt(args.argv, RUN_GIT_CMD); + argv_array_clear(&args); + return ret; +} + +int cmd_pull(int argc, const char **argv, const char *prefix) +{ + const char *repo, **refspecs; + struct sha1_array merge_heads = SHA1_ARRAY_INIT; + unsigned char orig_head[GIT_SHA1_RAWSZ], curr_head[GIT_SHA1_RAWSZ]; + unsigned char rebase_fork_point[GIT_SHA1_RAWSZ]; + + if (!getenv("GIT_REFLOG_ACTION")) + set_reflog_message(argc, argv); + + argc = parse_options(argc, argv, prefix, pull_options, pull_usage, 0); + + parse_repo_refspecs(argc, argv, &repo, &refspecs); + + if (!opt_ff) + opt_ff = xstrdup_or_null(config_get_ff()); + + if (opt_rebase < 0) + opt_rebase = config_get_rebase(); + + git_config(git_pull_config, NULL); + + if (read_cache_unmerged()) + die_resolve_conflict("Pull"); + + if (file_exists(git_path("MERGE_HEAD"))) + die_conclude_merge(); + + if (get_sha1("HEAD", orig_head)) + hashclr(orig_head); + + if (!opt_rebase && opt_autostash != -1) + die(_("--[no-]autostash option is only valid with --rebase.")); + + if (opt_rebase) { + int autostash = config_autostash; + if (opt_autostash != -1) + autostash = opt_autostash; + + if (is_null_sha1(orig_head) && !is_cache_unborn()) + die(_("Updating an unborn branch with changes added to the index.")); + + if (!autostash) + die_on_unclean_work_tree(prefix); + + if (get_rebase_fork_point(rebase_fork_point, repo, *refspecs)) + hashclr(rebase_fork_point); + } + + if (run_fetch(repo, refspecs)) + return 1; + + if (opt_dry_run) + return 0; + + if (get_sha1("HEAD", curr_head)) + hashclr(curr_head); + + if (!is_null_sha1(orig_head) && !is_null_sha1(curr_head) && + hashcmp(orig_head, curr_head)) { + /* + * The fetch involved updating the current branch. + * + * The working tree and the index file are still based on + * orig_head commit, but we are merging into curr_head. + * Update the working tree to match curr_head. + */ + + warning(_("fetch updated the current branch head.\n" + "fast-forwarding your working tree from\n" + "commit %s."), sha1_to_hex(orig_head)); + + if (checkout_fast_forward(orig_head, curr_head, 0)) + die(_("Cannot fast-forward your working tree.\n" + "After making sure that you saved anything precious from\n" + "$ git diff %s\n" + "output, run\n" + "$ git reset --hard\n" + "to recover."), sha1_to_hex(orig_head)); + } + + get_merge_heads(&merge_heads); + + if (!merge_heads.nr) + die_no_merge_candidates(repo, refspecs); + + if (is_null_sha1(orig_head)) { + if (merge_heads.nr > 1) + die(_("Cannot merge multiple branches into empty head.")); + return pull_into_void(*merge_heads.sha1, curr_head); + } else if (opt_rebase) { + if (merge_heads.nr > 1) + die(_("Cannot rebase onto multiple branches.")); + return run_rebase(curr_head, *merge_heads.sha1, rebase_fork_point); + } else + return run_merge(); +} diff --git a/builtin/push.c b/builtin/push.c index 35cce532f2..4e9e4dbab2 100644 --- a/builtin/push.c +++ b/builtin/push.c @@ -9,17 +9,23 @@ #include "transport.h" #include "parse-options.h" #include "submodule.h" +#include "submodule-config.h" +#include "send-pack.h" static const char * const push_usage[] = { - "git push [<options>] [<repository> [<refspec>...]]", + N_("git push [<options>] [<repository> [<refspec>...]]"), NULL, }; -static int thin; +static int thin = 1; static int deleterefs; static const char *receivepack; static int verbosity; -static int progress; +static int progress = -1; +static int recurse_submodules = RECURSE_SUBMODULES_DEFAULT; +static enum transport_family family; + +static struct push_cas_option cas; static const char **refspec; static int refspec_nr; @@ -32,51 +38,140 @@ static void add_refspec(const char *ref) refspec[refspec_nr-1] = ref; } -static void set_refspecs(const char **refs, int nr) +static const char *map_refspec(const char *ref, + struct remote *remote, struct ref *local_refs) { + struct ref *matched = NULL; + + /* Does "ref" uniquely name our ref? */ + if (count_refspec_match(ref, local_refs, &matched) != 1) + return ref; + + if (remote->push) { + struct refspec query; + memset(&query, 0, sizeof(struct refspec)); + query.src = matched->name; + if (!query_refspecs(remote->push, remote->push_refspec_nr, &query) && + query.dst) { + struct strbuf buf = STRBUF_INIT; + strbuf_addf(&buf, "%s%s:%s", + query.force ? "+" : "", + query.src, query.dst); + return strbuf_detach(&buf, NULL); + } + } + + if (push_default == PUSH_DEFAULT_UPSTREAM && + starts_with(matched->name, "refs/heads/")) { + struct branch *branch = branch_get(matched->name + 11); + if (branch->merge_nr == 1 && branch->merge[0]->src) { + struct strbuf buf = STRBUF_INIT; + strbuf_addf(&buf, "%s:%s", + ref, branch->merge[0]->src); + return strbuf_detach(&buf, NULL); + } + } + + return ref; +} + +static void set_refspecs(const char **refs, int nr, const char *repo) +{ + struct remote *remote = NULL; + struct ref *local_refs = NULL; int i; + for (i = 0; i < nr; i++) { const char *ref = refs[i]; if (!strcmp("tag", ref)) { - char *tag; - int len; + struct strbuf tagref = STRBUF_INIT; if (nr <= ++i) die(_("tag shorthand without <tag>")); - len = strlen(refs[i]) + 11; - if (deleterefs) { - tag = xmalloc(len+1); - strcpy(tag, ":refs/tags/"); - } else { - tag = xmalloc(len); - strcpy(tag, "refs/tags/"); + ref = refs[i]; + if (deleterefs) + strbuf_addf(&tagref, ":refs/tags/%s", ref); + else + strbuf_addf(&tagref, "refs/tags/%s", ref); + ref = strbuf_detach(&tagref, NULL); + } else if (deleterefs) { + struct strbuf delref = STRBUF_INIT; + if (strchr(ref, ':')) + die(_("--delete only accepts plain target ref names")); + strbuf_addf(&delref, ":%s", ref); + ref = strbuf_detach(&delref, NULL); + } else if (!strchr(ref, ':')) { + if (!remote) { + /* lazily grab remote and local_refs */ + remote = remote_get(repo); + local_refs = get_local_heads(); } - strcat(tag, refs[i]); - ref = tag; - } else if (deleterefs && !strchr(ref, ':')) { - char *delref; - int len = strlen(ref)+1; - delref = xmalloc(len+1); - strcpy(delref, ":"); - strcat(delref, ref); - ref = delref; - } else if (deleterefs) - die(_("--delete only accepts plain target ref names")); + ref = map_refspec(ref, remote, local_refs); + } add_refspec(ref); } } -static void setup_push_upstream(struct remote *remote) +static int push_url_of_remote(struct remote *remote, const char ***url_p) +{ + if (remote->pushurl_nr) { + *url_p = remote->pushurl; + return remote->pushurl_nr; + } + *url_p = remote->url; + return remote->url_nr; +} + +static NORETURN int die_push_simple(struct branch *branch, struct remote *remote) { + /* + * There's no point in using shorten_unambiguous_ref here, + * as the ambiguity would be on the remote side, not what + * we have locally. Plus, this is supposed to be the simple + * mode. If the user is doing something crazy like setting + * upstream to a non-branch, we should probably be showing + * them the big ugly fully qualified ref. + */ + const char *advice_maybe = ""; + const char *short_upstream = branch->merge[0]->src; + + skip_prefix(short_upstream, "refs/heads/", &short_upstream); + + /* + * Don't show advice for people who explicitly set + * push.default. + */ + if (push_default == PUSH_DEFAULT_UNSPECIFIED) + advice_maybe = _("\n" + "To choose either option permanently, " + "see push.default in 'git help config'."); + die(_("The upstream branch of your current branch does not match\n" + "the name of your current branch. To push to the upstream branch\n" + "on the remote, use\n" + "\n" + " git push %s HEAD:%s\n" + "\n" + "To push to the branch of the same name on the remote, use\n" + "\n" + " git push %s %s\n" + "%s"), + remote->name, short_upstream, + remote->name, branch->name, advice_maybe); +} + +static const char message_detached_head_die[] = + N_("You are not currently on a branch.\n" + "To push the history leading to the current (detached HEAD)\n" + "state now, use\n" + "\n" + " git push %s HEAD:<name-of-remote-branch>\n"); + +static void setup_push_upstream(struct remote *remote, struct branch *branch, + int triangular, int simple) { struct strbuf refspec = STRBUF_INIT; - struct branch *branch = branch_get(NULL); + if (!branch) - die(_("You are not currently on a branch.\n" - "To push the history leading to the current (detached HEAD)\n" - "state now, use\n" - "\n" - " git push %s HEAD:<name-of-remote-branch>\n"), - remote->name); - if (!branch->merge_nr || !branch->merge) + die(_(message_detached_head_die), remote->name); + if (!branch->merge_nr || !branch->merge || !branch->remote_name) die(_("The current branch %s has no upstream branch.\n" "To push the current branch and set the remote as upstream, use\n" "\n" @@ -87,24 +182,60 @@ static void setup_push_upstream(struct remote *remote) if (branch->merge_nr != 1) die(_("The current branch %s has multiple upstream branches, " "refusing to push."), branch->name); + if (triangular) + die(_("You are pushing to remote '%s', which is not the upstream of\n" + "your current branch '%s', without telling me what to push\n" + "to update which remote branch."), + remote->name, branch->name); + + if (simple) { + /* Additional safety */ + if (strcmp(branch->refname, branch->merge[0]->src)) + die_push_simple(branch, remote); + } + strbuf_addf(&refspec, "%s:%s", branch->name, branch->merge[0]->src); add_refspec(refspec.buf); } +static void setup_push_current(struct remote *remote, struct branch *branch) +{ + if (!branch) + die(_(message_detached_head_die), remote->name); + add_refspec(branch->name); +} + +static int is_workflow_triangular(struct remote *remote) +{ + struct remote *fetch_remote = remote_get(NULL); + return (fetch_remote && fetch_remote != remote); +} + static void setup_default_push_refspecs(struct remote *remote) { + struct branch *branch = branch_get(NULL); + int triangular = is_workflow_triangular(remote); + switch (push_default) { default: case PUSH_DEFAULT_MATCHING: add_refspec(":"); break; + case PUSH_DEFAULT_UNSPECIFIED: + case PUSH_DEFAULT_SIMPLE: + if (triangular) + setup_push_current(remote, branch); + else + setup_push_upstream(remote, branch, triangular, 1); + break; + case PUSH_DEFAULT_UPSTREAM: - setup_push_upstream(remote); + setup_push_upstream(remote, branch, triangular, 0); break; case PUSH_DEFAULT_CURRENT: - add_refspec("HEAD"); + setup_push_current(remote, branch); break; case PUSH_DEFAULT_NOTHING: @@ -114,35 +245,109 @@ static void setup_default_push_refspecs(struct remote *remote) } } +static const char message_advice_pull_before_push[] = + N_("Updates were rejected because the tip of your current branch is behind\n" + "its remote counterpart. Integrate the remote changes (e.g.\n" + "'git pull ...') before pushing again.\n" + "See the 'Note about fast-forwards' in 'git push --help' for details."); + +static const char message_advice_checkout_pull_push[] = + N_("Updates were rejected because a pushed branch tip is behind its remote\n" + "counterpart. Check out this branch and integrate the remote changes\n" + "(e.g. 'git pull ...') before pushing again.\n" + "See the 'Note about fast-forwards' in 'git push --help' for details."); + +static const char message_advice_ref_fetch_first[] = + N_("Updates were rejected because the remote contains work that you do\n" + "not have locally. This is usually caused by another repository pushing\n" + "to the same ref. You may want to first integrate the remote changes\n" + "(e.g., 'git pull ...') before pushing again.\n" + "See the 'Note about fast-forwards' in 'git push --help' for details."); + +static const char message_advice_ref_already_exists[] = + N_("Updates were rejected because the tag already exists in the remote."); + +static const char message_advice_ref_needs_force[] = + N_("You cannot update a remote ref that points at a non-commit object,\n" + "or update a remote ref to make it point at a non-commit object,\n" + "without using the '--force' option.\n"); + +static void advise_pull_before_push(void) +{ + if (!advice_push_non_ff_current || !advice_push_update_rejected) + return; + advise(_(message_advice_pull_before_push)); +} + +static void advise_checkout_pull_push(void) +{ + if (!advice_push_non_ff_matching || !advice_push_update_rejected) + return; + advise(_(message_advice_checkout_pull_push)); +} + +static void advise_ref_already_exists(void) +{ + if (!advice_push_already_exists || !advice_push_update_rejected) + return; + advise(_(message_advice_ref_already_exists)); +} + +static void advise_ref_fetch_first(void) +{ + if (!advice_push_fetch_first || !advice_push_update_rejected) + return; + advise(_(message_advice_ref_fetch_first)); +} + +static void advise_ref_needs_force(void) +{ + if (!advice_push_needs_force || !advice_push_update_rejected) + return; + advise(_(message_advice_ref_needs_force)); +} + static int push_with_options(struct transport *transport, int flags) { int err; - int nonfastforward; + unsigned int reject_reasons; transport_set_verbosity(transport, verbosity, progress); + transport->family = family; if (receivepack) transport_set_option(transport, TRANS_OPT_RECEIVEPACK, receivepack); - if (thin) - transport_set_option(transport, TRANS_OPT_THIN, "yes"); + transport_set_option(transport, TRANS_OPT_THIN, thin ? "yes" : NULL); + + if (!is_empty_cas(&cas)) { + if (!transport->smart_options) + die("underlying transport does not support --%s option", + CAS_OPT_NAME); + transport->smart_options->cas = &cas; + } if (verbosity > 0) fprintf(stderr, _("Pushing to %s\n"), transport->url); err = transport_push(transport, refspec_nr, refspec, flags, - &nonfastforward); + &reject_reasons); if (err != 0) error(_("failed to push some refs to '%s'"), transport->url); err |= transport_disconnect(transport); - if (!err) return 0; - if (nonfastforward && advice_push_nonfastforward) { - fprintf(stderr, _("To prevent you from losing history, non-fast-forward updates were rejected\n" - "Merge the remote changes (e.g. 'git pull') before pushing again. See the\n" - "'Note about fast-forwards' section of 'git push --help' for details.\n")); + if (reject_reasons & REJECT_NON_FF_HEAD) { + advise_pull_before_push(); + } else if (reject_reasons & REJECT_NON_FF_OTHER) { + advise_checkout_pull_push(); + } else if (reject_reasons & REJECT_ALREADY_EXISTS) { + advise_ref_already_exists(); + } else if (reject_reasons & REJECT_FETCH_FIRST) { + advise_ref_fetch_first(); + } else if (reject_reasons & REJECT_NEEDS_FORCE) { + advise_ref_needs_force(); } return 1; @@ -151,7 +356,7 @@ static int push_with_options(struct transport *transport, int flags) static int do_push(const char *repo, int flags) { int i, errs; - struct remote *remote = remote_get(repo); + struct remote *remote = pushremote_get(repo); const char **url; int url_nr; @@ -196,13 +401,7 @@ static int do_push(const char *repo, int flags) setup_default_push_refspecs(remote); } errs = 0; - if (remote->pushurl_nr) { - url = remote->pushurl; - url_nr = remote->pushurl_nr; - } else { - url = remote->url; - url_nr = remote->url_nr; - } + url_nr = push_url_of_remote(remote, &url); if (url_nr) { for (i = 0; i < url_nr; i++) { struct transport *transport = @@ -223,62 +422,145 @@ static int do_push(const char *repo, int flags) static int option_parse_recurse_submodules(const struct option *opt, const char *arg, int unset) { - int *flags = opt->value; - if (arg) { - if (!strcmp(arg, "check")) - *flags |= TRANSPORT_RECURSE_SUBMODULES_CHECK; - else - die("bad %s argument: %s", opt->long_name, arg); - } else - die("option %s needs an argument (check)", opt->long_name); + int *recurse_submodules = opt->value; + + if (unset) + *recurse_submodules = RECURSE_SUBMODULES_OFF; + else if (arg) + *recurse_submodules = parse_push_recurse_submodules_arg(opt->long_name, arg); + else + die("%s missing parameter", opt->long_name); return 0; } +static void set_push_cert_flags(int *flags, int v) +{ + switch (v) { + case SEND_PACK_PUSH_CERT_NEVER: + *flags &= ~(TRANSPORT_PUSH_CERT_ALWAYS | TRANSPORT_PUSH_CERT_IF_ASKED); + break; + case SEND_PACK_PUSH_CERT_ALWAYS: + *flags |= TRANSPORT_PUSH_CERT_ALWAYS; + *flags &= ~TRANSPORT_PUSH_CERT_IF_ASKED; + break; + case SEND_PACK_PUSH_CERT_IF_ASKED: + *flags |= TRANSPORT_PUSH_CERT_IF_ASKED; + *flags &= ~TRANSPORT_PUSH_CERT_ALWAYS; + break; + } +} + + +static int git_push_config(const char *k, const char *v, void *cb) +{ + int *flags = cb; + int status; + + status = git_gpg_config(k, v, NULL); + if (status) + return status; + + if (!strcmp(k, "push.followtags")) { + if (git_config_bool(k, v)) + *flags |= TRANSPORT_PUSH_FOLLOW_TAGS; + else + *flags &= ~TRANSPORT_PUSH_FOLLOW_TAGS; + return 0; + } else if (!strcmp(k, "push.gpgsign")) { + const char *value; + if (!git_config_get_value("push.gpgsign", &value)) { + switch (git_config_maybe_bool("push.gpgsign", value)) { + case 0: + set_push_cert_flags(flags, SEND_PACK_PUSH_CERT_NEVER); + break; + case 1: + set_push_cert_flags(flags, SEND_PACK_PUSH_CERT_ALWAYS); + break; + default: + if (value && !strcasecmp(value, "if-asked")) + set_push_cert_flags(flags, SEND_PACK_PUSH_CERT_IF_ASKED); + else + return error("Invalid value for '%s'", k); + } + } + } else if (!strcmp(k, "push.recursesubmodules")) { + const char *value; + if (!git_config_get_value("push.recursesubmodules", &value)) + recurse_submodules = parse_push_recurse_submodules_arg(k, value); + } + + return git_default_config(k, v, NULL); +} + int cmd_push(int argc, const char **argv, const char *prefix) { int flags = 0; int tags = 0; + int push_cert = -1; int rc; const char *repo = NULL; /* default repository */ struct option options[] = { OPT__VERBOSITY(&verbosity), - OPT_STRING( 0 , "repo", &repo, "repository", "repository"), - OPT_BIT( 0 , "all", &flags, "push all refs", TRANSPORT_PUSH_ALL), - OPT_BIT( 0 , "mirror", &flags, "mirror all refs", + OPT_STRING( 0 , "repo", &repo, N_("repository"), N_("repository")), + OPT_BIT( 0 , "all", &flags, N_("push all refs"), TRANSPORT_PUSH_ALL), + OPT_BIT( 0 , "mirror", &flags, N_("mirror all refs"), (TRANSPORT_PUSH_MIRROR|TRANSPORT_PUSH_FORCE)), - OPT_BOOLEAN( 0, "delete", &deleterefs, "delete refs"), - OPT_BOOLEAN( 0 , "tags", &tags, "push tags (can't be used with --all or --mirror)"), - OPT_BIT('n' , "dry-run", &flags, "dry run", TRANSPORT_PUSH_DRY_RUN), - OPT_BIT( 0, "porcelain", &flags, "machine-readable output", TRANSPORT_PUSH_PORCELAIN), - OPT_BIT('f', "force", &flags, "force updates", TRANSPORT_PUSH_FORCE), - { OPTION_CALLBACK, 0, "recurse-submodules", &flags, "check", - "controls recursive pushing of submodules", + OPT_BOOL('d', "delete", &deleterefs, N_("delete refs")), + OPT_BOOL( 0 , "tags", &tags, N_("push tags (can't be used with --all or --mirror)")), + OPT_BIT('n' , "dry-run", &flags, N_("dry run"), TRANSPORT_PUSH_DRY_RUN), + OPT_BIT( 0, "porcelain", &flags, N_("machine-readable output"), TRANSPORT_PUSH_PORCELAIN), + OPT_BIT('f', "force", &flags, N_("force updates"), TRANSPORT_PUSH_FORCE), + { OPTION_CALLBACK, + 0, CAS_OPT_NAME, &cas, N_("refname>:<expect"), + N_("require old value of ref to be at this value"), + PARSE_OPT_OPTARG, parseopt_push_cas_option }, + { OPTION_CALLBACK, 0, "recurse-submodules", &recurse_submodules, "check|on-demand|no", + N_("control recursive pushing of submodules"), PARSE_OPT_OPTARG, option_parse_recurse_submodules }, - OPT_BOOLEAN( 0 , "thin", &thin, "use thin pack"), - OPT_STRING( 0 , "receive-pack", &receivepack, "receive-pack", "receive pack program"), - OPT_STRING( 0 , "exec", &receivepack, "receive-pack", "receive pack program"), - OPT_BIT('u', "set-upstream", &flags, "set upstream for git pull/status", + OPT_BOOL( 0 , "thin", &thin, N_("use thin pack")), + OPT_STRING( 0 , "receive-pack", &receivepack, "receive-pack", N_("receive pack program")), + OPT_STRING( 0 , "exec", &receivepack, "receive-pack", N_("receive pack program")), + OPT_BIT('u', "set-upstream", &flags, N_("set upstream for git pull/status"), TRANSPORT_PUSH_SET_UPSTREAM), - OPT_BOOLEAN(0, "progress", &progress, "force progress reporting"), + OPT_BOOL(0, "progress", &progress, N_("force progress reporting")), + OPT_BIT(0, "prune", &flags, N_("prune locally removed refs"), + TRANSPORT_PUSH_PRUNE), + OPT_BIT(0, "no-verify", &flags, N_("bypass pre-push hook"), TRANSPORT_PUSH_NO_HOOK), + OPT_BIT(0, "follow-tags", &flags, N_("push missing but relevant tags"), + TRANSPORT_PUSH_FOLLOW_TAGS), + { OPTION_CALLBACK, + 0, "signed", &push_cert, "yes|no|if-asked", N_("GPG sign the push"), + PARSE_OPT_OPTARG, option_parse_push_signed }, + OPT_BIT(0, "atomic", &flags, N_("request atomic transaction on remote side"), TRANSPORT_PUSH_ATOMIC), + OPT_SET_INT('4', "ipv4", &family, N_("use IPv4 addresses only"), + TRANSPORT_FAMILY_IPV4), + OPT_SET_INT('6', "ipv6", &family, N_("use IPv6 addresses only"), + TRANSPORT_FAMILY_IPV6), OPT_END() }; packet_trace_identity("push"); - git_config(git_default_config, NULL); + git_config(git_push_config, &flags); argc = parse_options(argc, argv, prefix, options, push_usage, 0); + set_push_cert_flags(&flags, push_cert); if (deleterefs && (tags || (flags & (TRANSPORT_PUSH_ALL | TRANSPORT_PUSH_MIRROR)))) die(_("--delete is incompatible with --all, --mirror and --tags")); if (deleterefs && argc < 2) die(_("--delete doesn't make sense without any refs")); + if (recurse_submodules == RECURSE_SUBMODULES_CHECK) + flags |= TRANSPORT_RECURSE_SUBMODULES_CHECK; + else if (recurse_submodules == RECURSE_SUBMODULES_ON_DEMAND) + flags |= TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND; + if (tags) add_refspec("refs/tags/*"); if (argc > 0) { repo = argv[0]; - set_refspecs(argv + 1, argc - 1); + set_refspecs(argv + 1, argc - 1, repo); } rc = do_push(repo, flags); diff --git a/builtin/read-tree.c b/builtin/read-tree.c index df6c4c8819..8c693e7568 100644 --- a/builtin/read-tree.c +++ b/builtin/read-tree.c @@ -5,6 +5,7 @@ */ #include "cache.h" +#include "lockfile.h" #include "object.h" #include "tree.h" #include "tree-walk.h" @@ -33,7 +34,7 @@ static int list_tree(unsigned char *sha1) } static const char * const read_tree_usage[] = { - "git read-tree [[-m [--trivial] [--aggressive] | --reset | --prefix=<prefix>] [-u [--exclude-per-directory=<gitignore>] | -i]] [--no-sparse-checkout] [--index-output=<file>] (--empty | <tree-ish1> [<tree-ish2> [<tree-ish3>]])", + N_("git read-tree [(-m [--trivial] [--aggressive] | --reset | --prefix=<prefix>) [-u [--exclude-per-directory=<gitignore>] | -i]] [--no-sparse-checkout] [--index-output=<file>] (--empty | <tree-ish1> [<tree-ish2> [<tree-ish3>]])"), NULL }; @@ -66,7 +67,7 @@ static int exclude_per_directory_cb(const struct option *opt, const char *arg, return 0; } -static void debug_stage(const char *label, struct cache_entry *ce, +static void debug_stage(const char *label, const struct cache_entry *ce, struct unpack_trees_options *o) { printf("%s ", label); @@ -80,7 +81,8 @@ static void debug_stage(const char *label, struct cache_entry *ce, sha1_to_hex(ce->sha1)); } -static int debug_merge(struct cache_entry **stages, struct unpack_trees_options *o) +static int debug_merge(const struct cache_entry * const *stages, + struct unpack_trees_options *o) { int i; @@ -88,7 +90,7 @@ static int debug_merge(struct cache_entry **stages, struct unpack_trees_options debug_stage("index", stages[0], o); for (i = 1; i <= o->merge_size; i++) { char buf[24]; - sprintf(buf, "ent#%d", i); + xsnprintf(buf, sizeof(buf), "ent#%d", i); debug_stage(buf, stages[i], o); } return 0; @@ -98,43 +100,43 @@ static struct lock_file lock_file; int cmd_read_tree(int argc, const char **argv, const char *unused_prefix) { - int i, newfd, stage = 0; + int i, stage = 0; unsigned char sha1[20]; struct tree_desc t[MAX_UNPACK_TREES]; struct unpack_trees_options opts; int prefix_set = 0; const struct option read_tree_options[] = { - { OPTION_CALLBACK, 0, "index-output", NULL, "file", - "write resulting index to <file>", + { OPTION_CALLBACK, 0, "index-output", NULL, N_("file"), + N_("write resulting index to <file>"), PARSE_OPT_NONEG, index_output_cb }, OPT_SET_INT(0, "empty", &read_empty, - "only empty the index", 1), - OPT__VERBOSE(&opts.verbose_update, "be verbose"), - OPT_GROUP("Merging"), + N_("only empty the index"), 1), + OPT__VERBOSE(&opts.verbose_update, N_("be verbose")), + OPT_GROUP(N_("Merging")), OPT_SET_INT('m', NULL, &opts.merge, - "perform a merge in addition to a read", 1), + N_("perform a merge in addition to a read"), 1), OPT_SET_INT(0, "trivial", &opts.trivial_merges_only, - "3-way merge if no file level merging required", 1), + N_("3-way merge if no file level merging required"), 1), OPT_SET_INT(0, "aggressive", &opts.aggressive, - "3-way merge in presence of adds and removes", 1), + N_("3-way merge in presence of adds and removes"), 1), OPT_SET_INT(0, "reset", &opts.reset, - "same as -m, but discard unmerged entries", 1), - { OPTION_STRING, 0, "prefix", &opts.prefix, "<subdirectory>/", - "read the tree into the index under <subdirectory>/", + N_("same as -m, but discard unmerged entries"), 1), + { OPTION_STRING, 0, "prefix", &opts.prefix, N_("<subdirectory>/"), + N_("read the tree into the index under <subdirectory>/"), PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP }, OPT_SET_INT('u', NULL, &opts.update, - "update working tree with merge result", 1), + N_("update working tree with merge result"), 1), { OPTION_CALLBACK, 0, "exclude-per-directory", &opts, - "gitignore", - "allow explicitly ignored files to be overwritten", + N_("gitignore"), + N_("allow explicitly ignored files to be overwritten"), PARSE_OPT_NONEG, exclude_per_directory_cb }, OPT_SET_INT('i', NULL, &opts.index_only, - "don't check the working tree after merging", 1), - OPT__DRY_RUN(&opts.dry_run, "don't update the index or the work tree"), + N_("don't check the working tree after merging"), 1), + OPT__DRY_RUN(&opts.dry_run, N_("don't update the index or the work tree")), OPT_SET_INT(0, "no-sparse-checkout", &opts.skip_sparse_checkout, - "skip applying sparse checkout filter", 1), + N_("skip applying sparse checkout filter"), 1), OPT_SET_INT(0, "debug-unpack", &opts.debug_unpack, - "debug unpack-trees", 1), + N_("debug unpack-trees"), 1), OPT_END() }; @@ -148,12 +150,21 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix) argc = parse_options(argc, argv, unused_prefix, read_tree_options, read_tree_usage, 0); - newfd = hold_locked_index(&lock_file, 1); + hold_locked_index(&lock_file, 1); prefix_set = opts.prefix ? 1 : 0; if (1 < opts.merge + opts.reset + prefix_set) die("Which one? -m, --reset, or --prefix?"); + /* + * NEEDSWORK + * + * The old index should be read anyway even if we're going to + * destroy all index entries because we still need to preserve + * certain information such as index version or split-index + * mode. + */ + if (opts.reset || opts.merge || opts.prefix) { if (read_cache_unmerged() && (opts.prefix || opts.merge)) die("You need to resolve your current index first"); @@ -177,7 +188,7 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix) if (1 < opts.index_only + opts.update) die("-u and -i at the same time makes no sense"); - if ((opts.update||opts.index_only) && !opts.merge) + if ((opts.update || opts.index_only) && !opts.merge) die("%s is meaningless without -m, --reset, or --prefix", opts.update ? "-u" : "-i"); if ((opts.dir && !opts.update)) @@ -230,10 +241,9 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix) * what came from the tree. */ if (nr_trees == 1 && !opts.prefix) - prime_cache_tree(&active_cache_tree, trees[0]); + prime_cache_tree(&the_index, trees[0]); - if (write_cache(newfd, active_cache, active_nr) || - commit_locked_index(&lock_file)) + if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK)) die("unable to write new index file"); return 0; } diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c index d2dcb7e4af..a744437b58 100644 --- a/builtin/receive-pack.c +++ b/builtin/receive-pack.c @@ -1,4 +1,5 @@ #include "builtin.h" +#include "lockfile.h" #include "pack.h" #include "refs.h" #include "pkt-line.h" @@ -8,18 +9,29 @@ #include "commit.h" #include "object.h" #include "remote.h" +#include "connect.h" #include "transport.h" #include "string-list.h" #include "sha1-array.h" #include "connected.h" - -static const char receive_pack_usage[] = "git receive-pack <git-dir>"; +#include "argv-array.h" +#include "version.h" +#include "tag.h" +#include "gpg-interface.h" +#include "sigchain.h" +#include "fsck.h" + +static const char * const receive_pack_usage[] = { + N_("git receive-pack <git-dir>"), + NULL +}; enum deny_action { DENY_UNCONFIGURED, DENY_IGNORE, DENY_WARN, - DENY_REFUSE + DENY_REFUSE, + DENY_UPDATE_INSTEAD }; static int deny_deletes; @@ -28,17 +40,41 @@ static enum deny_action deny_current_branch = DENY_UNCONFIGURED; static enum deny_action deny_delete_current = DENY_UNCONFIGURED; static int receive_fsck_objects = -1; static int transfer_fsck_objects = -1; +static struct strbuf fsck_msg_types = STRBUF_INIT; static int receive_unpack_limit = -1; static int transfer_unpack_limit = -1; +static int advertise_atomic_push = 1; static int unpack_limit = 100; static int report_status; static int use_sideband; +static int use_atomic; +static int quiet; static int prefer_ofs_delta = 1; static int auto_update_server_info; static int auto_gc = 1; +static int reject_thin; +static int stateless_rpc; +static const char *service_dir; static const char *head_name; static void *head_name_to_free; static int sent_capabilities; +static int shallow_update; +static const char *alt_shallow_file; +static struct strbuf push_cert = STRBUF_INIT; +static unsigned char push_cert_sha1[20]; +static struct signature_check sigcheck; +static const char *push_cert_nonce; +static const char *cert_nonce_seed; + +static const char *NONCE_UNSOLICITED = "UNSOLICITED"; +static const char *NONCE_BAD = "BAD"; +static const char *NONCE_MISSING = "MISSING"; +static const char *NONCE_OK = "OK"; +static const char *NONCE_SLOP = "SLOP"; +static const char *nonce_status; +static long nonce_stamp_slop; +static unsigned long nonce_stamp_slop_limit; +static struct ref_transaction *transaction; static enum deny_action parse_deny_action(const char *var, const char *value) { @@ -49,6 +85,8 @@ static enum deny_action parse_deny_action(const char *var, const char *value) return DENY_WARN; if (!strcasecmp(value, "refuse")) return DENY_REFUSE; + if (!strcasecmp(value, "updateinstead")) + return DENY_UPDATE_INSTEAD; } if (git_config_bool(var, value)) return DENY_REFUSE; @@ -57,6 +95,11 @@ static enum deny_action parse_deny_action(const char *var, const char *value) static int receive_pack_config(const char *var, const char *value, void *cb) { + int status = parse_hide_refs_config(var, value, "receive"); + + if (status) + return status; + if (strcmp(var, "receive.denydeletes") == 0) { deny_deletes = git_config_bool(var, value); return 0; @@ -77,6 +120,26 @@ static int receive_pack_config(const char *var, const char *value, void *cb) return 0; } + if (strcmp(var, "receive.fsck.skiplist") == 0) { + const char *path; + + if (git_config_pathname(&path, var, value)) + return 1; + strbuf_addf(&fsck_msg_types, "%cskiplist=%s", + fsck_msg_types.len ? ',' : '=', path); + free((char *)path); + return 0; + } + + if (skip_prefix(var, "receive.fsck.", &var)) { + if (is_valid_msg_type(var, value)) + strbuf_addf(&fsck_msg_types, "%c%s=%s", + fsck_msg_types.len ? ',' : '=', var, value); + else + warning("Skipping unknown msg id '%s'", var); + return 0; + } + if (strcmp(var, "receive.fsckobjects") == 0) { receive_fsck_objects = git_config_bool(var, value); return 0; @@ -112,25 +175,58 @@ static int receive_pack_config(const char *var, const char *value, void *cb) return 0; } + if (strcmp(var, "receive.shallowupdate") == 0) { + shallow_update = git_config_bool(var, value); + return 0; + } + + if (strcmp(var, "receive.certnonceseed") == 0) + return git_config_string(&cert_nonce_seed, var, value); + + if (strcmp(var, "receive.certnonceslop") == 0) { + nonce_stamp_slop_limit = git_config_ulong(var, value); + return 0; + } + + if (strcmp(var, "receive.advertiseatomic") == 0) { + advertise_atomic_push = git_config_bool(var, value); + return 0; + } + return git_default_config(var, value, cb); } -static int show_ref(const char *path, const unsigned char *sha1, int flag, void *cb_data) +static void show_ref(const char *path, const unsigned char *sha1) { - if (sent_capabilities) + if (sent_capabilities) { packet_write(1, "%s %s\n", sha1_to_hex(sha1), path); - else - packet_write(1, "%s %s%c%s%s\n", - sha1_to_hex(sha1), path, 0, - " report-status delete-refs side-band-64k", - prefer_ofs_delta ? " ofs-delta" : ""); - sent_capabilities = 1; - return 0; + } else { + struct strbuf cap = STRBUF_INIT; + + strbuf_addstr(&cap, + "report-status delete-refs side-band-64k quiet"); + if (advertise_atomic_push) + strbuf_addstr(&cap, " atomic"); + if (prefer_ofs_delta) + strbuf_addstr(&cap, " ofs-delta"); + if (push_cert_nonce) + strbuf_addf(&cap, " push-cert=%s", push_cert_nonce); + strbuf_addf(&cap, " agent=%s", git_user_agent_sanitized()); + packet_write(1, "%s %s%c%s\n", + sha1_to_hex(sha1), path, 0, cap.buf); + strbuf_release(&cap); + sent_capabilities = 1; + } } -static int show_ref_cb(const char *path, const unsigned char *sha1, int flag, void *cb_data) +static int show_ref_cb(const char *path_full, const struct object_id *oid, + int flag, void *unused) { - path = strip_namespace(path); + const char *path = strip_namespace(path_full); + + if (ref_is_hidden(path, path_full)) + return 0; + /* * Advertise refs outside our current namespace as ".have" * refs, so that the client can use them to minimize data @@ -141,15 +237,36 @@ static int show_ref_cb(const char *path, const unsigned char *sha1, int flag, vo */ if (!path) path = ".have"; - return show_ref(path, sha1, flag, cb_data); + show_ref(path, oid->hash); + return 0; +} + +static void show_one_alternate_sha1(const unsigned char sha1[20], void *unused) +{ + show_ref(".have", sha1); +} + +static void collect_one_alternate_ref(const struct ref *ref, void *data) +{ + struct sha1_array *sa = data; + sha1_array_append(sa, ref->old_oid.hash); } static void write_head_info(void) { + struct sha1_array sa = SHA1_ARRAY_INIT; + + for_each_alternate_ref(collect_one_alternate_ref, &sa); + sha1_array_for_each_unique(&sa, show_one_alternate_sha1, NULL); + sha1_array_clear(&sa); for_each_ref(show_ref_cb, NULL); if (!sent_capabilities) - show_ref("capabilities^{}", null_sha1, 0, NULL); + show_ref("capabilities^{}", null_sha1); + + advertise_shallow_grafts(1); + /* EOF */ + packet_flush(1); } struct command { @@ -157,23 +274,21 @@ struct command { const char *error_string; unsigned int skip_update:1, did_not_exist:1; + int index; unsigned char old_sha1[20]; unsigned char new_sha1[20]; char ref_name[FLEX_ARRAY]; /* more */ }; -static const char pre_receive_hook[] = "hooks/pre-receive"; -static const char post_receive_hook[] = "hooks/post-receive"; - static void rp_error(const char *err, ...) __attribute__((format (printf, 1, 2))); static void rp_warning(const char *err, ...) __attribute__((format (printf, 1, 2))); static void report_message(const char *prefix, const char *err, va_list params) { - int sz = strlen(prefix); + int sz; char msg[4096]; - strncpy(msg, prefix, sz); + sz = xsnprintf(msg, sizeof(msg), "%s", prefix); sz += vsnprintf(msg + sz, sizeof(msg) - sz, err, params); if (sz > (sizeof(msg) - 1)) sz = sizeof(msg) - 1; @@ -214,21 +329,241 @@ static int copy_to_sideband(int in, int out, void *arg) return 0; } +#define HMAC_BLOCK_SIZE 64 + +static void hmac_sha1(unsigned char *out, + const char *key_in, size_t key_len, + const char *text, size_t text_len) +{ + unsigned char key[HMAC_BLOCK_SIZE]; + unsigned char k_ipad[HMAC_BLOCK_SIZE]; + unsigned char k_opad[HMAC_BLOCK_SIZE]; + int i; + git_SHA_CTX ctx; + + /* RFC 2104 2. (1) */ + memset(key, '\0', HMAC_BLOCK_SIZE); + if (HMAC_BLOCK_SIZE < key_len) { + git_SHA1_Init(&ctx); + git_SHA1_Update(&ctx, key_in, key_len); + git_SHA1_Final(key, &ctx); + } else { + memcpy(key, key_in, key_len); + } + + /* RFC 2104 2. (2) & (5) */ + for (i = 0; i < sizeof(key); i++) { + k_ipad[i] = key[i] ^ 0x36; + k_opad[i] = key[i] ^ 0x5c; + } + + /* RFC 2104 2. (3) & (4) */ + git_SHA1_Init(&ctx); + git_SHA1_Update(&ctx, k_ipad, sizeof(k_ipad)); + git_SHA1_Update(&ctx, text, text_len); + git_SHA1_Final(out, &ctx); + + /* RFC 2104 2. (6) & (7) */ + git_SHA1_Init(&ctx); + git_SHA1_Update(&ctx, k_opad, sizeof(k_opad)); + git_SHA1_Update(&ctx, out, 20); + git_SHA1_Final(out, &ctx); +} + +static char *prepare_push_cert_nonce(const char *path, unsigned long stamp) +{ + struct strbuf buf = STRBUF_INIT; + unsigned char sha1[20]; + + strbuf_addf(&buf, "%s:%lu", path, stamp); + hmac_sha1(sha1, buf.buf, buf.len, cert_nonce_seed, strlen(cert_nonce_seed));; + strbuf_release(&buf); + + /* RFC 2104 5. HMAC-SHA1-80 */ + strbuf_addf(&buf, "%lu-%.*s", stamp, 20, sha1_to_hex(sha1)); + return strbuf_detach(&buf, NULL); +} + +/* + * NEEDSWORK: reuse find_commit_header() from jk/commit-author-parsing + * after dropping "_commit" from its name and possibly moving it out + * of commit.c + */ +static char *find_header(const char *msg, size_t len, const char *key) +{ + int key_len = strlen(key); + const char *line = msg; + + while (line && line < msg + len) { + const char *eol = strchrnul(line, '\n'); + + if ((msg + len <= eol) || line == eol) + return NULL; + if (line + key_len < eol && + !memcmp(line, key, key_len) && line[key_len] == ' ') { + int offset = key_len + 1; + return xmemdupz(line + offset, (eol - line) - offset); + } + line = *eol ? eol + 1 : NULL; + } + return NULL; +} + +static const char *check_nonce(const char *buf, size_t len) +{ + char *nonce = find_header(buf, len, "nonce"); + unsigned long stamp, ostamp; + char *bohmac, *expect = NULL; + const char *retval = NONCE_BAD; + + if (!nonce) { + retval = NONCE_MISSING; + goto leave; + } else if (!push_cert_nonce) { + retval = NONCE_UNSOLICITED; + goto leave; + } else if (!strcmp(push_cert_nonce, nonce)) { + retval = NONCE_OK; + goto leave; + } + + if (!stateless_rpc) { + /* returned nonce MUST match what we gave out earlier */ + retval = NONCE_BAD; + goto leave; + } + + /* + * In stateless mode, we may be receiving a nonce issued by + * another instance of the server that serving the same + * repository, and the timestamps may not match, but the + * nonce-seed and dir should match, so we can recompute and + * report the time slop. + * + * In addition, when a nonce issued by another instance has + * timestamp within receive.certnonceslop seconds, we pretend + * as if we issued that nonce when reporting to the hook. + */ + + /* nonce is concat(<seconds-since-epoch>, "-", <hmac>) */ + if (*nonce <= '0' || '9' < *nonce) { + retval = NONCE_BAD; + goto leave; + } + stamp = strtoul(nonce, &bohmac, 10); + if (bohmac == nonce || bohmac[0] != '-') { + retval = NONCE_BAD; + goto leave; + } + + expect = prepare_push_cert_nonce(service_dir, stamp); + if (strcmp(expect, nonce)) { + /* Not what we would have signed earlier */ + retval = NONCE_BAD; + goto leave; + } + + /* + * By how many seconds is this nonce stale? Negative value + * would mean it was issued by another server with its clock + * skewed in the future. + */ + ostamp = strtoul(push_cert_nonce, NULL, 10); + nonce_stamp_slop = (long)ostamp - (long)stamp; + + if (nonce_stamp_slop_limit && + labs(nonce_stamp_slop) <= nonce_stamp_slop_limit) { + /* + * Pretend as if the received nonce (which passes the + * HMAC check, so it is not a forged by third-party) + * is what we issued. + */ + free((void *)push_cert_nonce); + push_cert_nonce = xstrdup(nonce); + retval = NONCE_OK; + } else { + retval = NONCE_SLOP; + } + +leave: + free(nonce); + free(expect); + return retval; +} + +static void prepare_push_cert_sha1(struct child_process *proc) +{ + static int already_done; + + if (!push_cert.len) + return; + + if (!already_done) { + struct strbuf gpg_output = STRBUF_INIT; + struct strbuf gpg_status = STRBUF_INIT; + int bogs /* beginning_of_gpg_sig */; + + already_done = 1; + if (write_sha1_file(push_cert.buf, push_cert.len, "blob", push_cert_sha1)) + hashclr(push_cert_sha1); + + memset(&sigcheck, '\0', sizeof(sigcheck)); + sigcheck.result = 'N'; + + bogs = parse_signature(push_cert.buf, push_cert.len); + if (verify_signed_buffer(push_cert.buf, bogs, + push_cert.buf + bogs, push_cert.len - bogs, + &gpg_output, &gpg_status) < 0) { + ; /* error running gpg */ + } else { + sigcheck.payload = push_cert.buf; + sigcheck.gpg_output = gpg_output.buf; + sigcheck.gpg_status = gpg_status.buf; + parse_gpg_output(&sigcheck); + } + + strbuf_release(&gpg_output); + strbuf_release(&gpg_status); + nonce_status = check_nonce(push_cert.buf, bogs); + } + if (!is_null_sha1(push_cert_sha1)) { + argv_array_pushf(&proc->env_array, "GIT_PUSH_CERT=%s", + sha1_to_hex(push_cert_sha1)); + argv_array_pushf(&proc->env_array, "GIT_PUSH_CERT_SIGNER=%s", + sigcheck.signer ? sigcheck.signer : ""); + argv_array_pushf(&proc->env_array, "GIT_PUSH_CERT_KEY=%s", + sigcheck.key ? sigcheck.key : ""); + argv_array_pushf(&proc->env_array, "GIT_PUSH_CERT_STATUS=%c", + sigcheck.result); + if (push_cert_nonce) { + argv_array_pushf(&proc->env_array, + "GIT_PUSH_CERT_NONCE=%s", + push_cert_nonce); + argv_array_pushf(&proc->env_array, + "GIT_PUSH_CERT_NONCE_STATUS=%s", + nonce_status); + if (nonce_status == NONCE_SLOP) + argv_array_pushf(&proc->env_array, + "GIT_PUSH_CERT_NONCE_SLOP=%ld", + nonce_stamp_slop); + } + } +} + typedef int (*feed_fn)(void *, const char **, size_t *); static int run_and_feed_hook(const char *hook_name, feed_fn feed, void *feed_state) { - struct child_process proc; + struct child_process proc = CHILD_PROCESS_INIT; struct async muxer; const char *argv[2]; int code; - if (access(hook_name, X_OK) < 0) + argv[0] = find_hook(hook_name); + if (!argv[0]) return 0; - argv[0] = hook_name; argv[1] = NULL; - memset(&proc, 0, sizeof(proc)); proc.argv = argv; proc.in = -1; proc.stdout_to_stderr = 1; @@ -243,6 +578,8 @@ static int run_and_feed_hook(const char *hook_name, feed_fn feed, void *feed_sta proc.err = muxer.in; } + prepare_push_cert_sha1(&proc); + code = start_command(&proc); if (code) { if (use_sideband) @@ -250,6 +587,8 @@ static int run_and_feed_hook(const char *hook_name, feed_fn feed, void *feed_sta return code; } + sigchain_push(SIGPIPE, SIG_IGN); + while (1) { const char *buf; size_t n; @@ -261,6 +600,9 @@ static int run_and_feed_hook(const char *hook_name, feed_fn feed, void *feed_sta close(proc.in); if (use_sideband) finish_async(&muxer); + + sigchain_pop(SIGPIPE); + return finish_command(&proc); } @@ -311,21 +653,19 @@ static int run_receive_hook(struct command *commands, const char *hook_name, static int run_update_hook(struct command *cmd) { - static const char update_hook[] = "hooks/update"; const char *argv[5]; - struct child_process proc; + struct child_process proc = CHILD_PROCESS_INIT; int code; - if (access(update_hook, X_OK) < 0) + argv[0] = find_hook("update"); + if (!argv[0]) return 0; - argv[0] = update_hook; argv[1] = cmd->ref_name; argv[2] = sha1_to_hex(cmd->old_sha1); argv[3] = sha1_to_hex(cmd->new_sha1); argv[4] = NULL; - memset(&proc, 0, sizeof(proc)); proc.no_stdin = 1; proc.stdout_to_stderr = 1; proc.err = use_sideband ? -1 : 0; @@ -392,17 +732,172 @@ static void refuse_unconfigured_deny_delete_current(void) rp_error("%s", refuse_unconfigured_deny_delete_current_msg[i]); } -static const char *update(struct command *cmd) +static int command_singleton_iterator(void *cb_data, unsigned char sha1[20]); +static int update_shallow_ref(struct command *cmd, struct shallow_info *si) +{ + static struct lock_file shallow_lock; + struct sha1_array extra = SHA1_ARRAY_INIT; + const char *alt_file; + uint32_t mask = 1 << (cmd->index % 32); + int i; + + trace_printf_key(&trace_shallow, + "shallow: update_shallow_ref %s\n", cmd->ref_name); + for (i = 0; i < si->shallow->nr; i++) + if (si->used_shallow[i] && + (si->used_shallow[i][cmd->index / 32] & mask) && + !delayed_reachability_test(si, i)) + sha1_array_append(&extra, si->shallow->sha1[i]); + + setup_alternate_shallow(&shallow_lock, &alt_file, &extra); + if (check_shallow_connected(command_singleton_iterator, + 0, cmd, alt_file)) { + rollback_lock_file(&shallow_lock); + sha1_array_clear(&extra); + return -1; + } + + commit_lock_file(&shallow_lock); + + /* + * Make sure setup_alternate_shallow() for the next ref does + * not lose these new roots.. + */ + for (i = 0; i < extra.nr; i++) + register_shallow(extra.sha1[i]); + + si->shallow_ref[cmd->index] = 0; + sha1_array_clear(&extra); + return 0; +} + +/* + * NEEDSWORK: we should consolidate various implementions of "are we + * on an unborn branch?" test into one, and make the unified one more + * robust. !get_sha1() based check used here and elsewhere would not + * allow us to tell an unborn branch from corrupt ref, for example. + * For the purpose of fixing "deploy-to-update does not work when + * pushing into an empty repository" issue, this should suffice for + * now. + */ +static int head_has_history(void) +{ + unsigned char sha1[20]; + + return !get_sha1("HEAD", sha1); +} + +static const char *push_to_deploy(unsigned char *sha1, + struct argv_array *env, + const char *work_tree) +{ + const char *update_refresh[] = { + "update-index", "-q", "--ignore-submodules", "--refresh", NULL + }; + const char *diff_files[] = { + "diff-files", "--quiet", "--ignore-submodules", "--", NULL + }; + const char *diff_index[] = { + "diff-index", "--quiet", "--cached", "--ignore-submodules", + NULL, "--", NULL + }; + const char *read_tree[] = { + "read-tree", "-u", "-m", NULL, NULL + }; + struct child_process child = CHILD_PROCESS_INIT; + + child.argv = update_refresh; + child.env = env->argv; + child.dir = work_tree; + child.no_stdin = 1; + child.stdout_to_stderr = 1; + child.git_cmd = 1; + if (run_command(&child)) + return "Up-to-date check failed"; + + /* run_command() does not clean up completely; reinitialize */ + child_process_init(&child); + child.argv = diff_files; + child.env = env->argv; + child.dir = work_tree; + child.no_stdin = 1; + child.stdout_to_stderr = 1; + child.git_cmd = 1; + if (run_command(&child)) + return "Working directory has unstaged changes"; + + /* diff-index with either HEAD or an empty tree */ + diff_index[4] = head_has_history() ? "HEAD" : EMPTY_TREE_SHA1_HEX; + + child_process_init(&child); + child.argv = diff_index; + child.env = env->argv; + child.no_stdin = 1; + child.no_stdout = 1; + child.stdout_to_stderr = 0; + child.git_cmd = 1; + if (run_command(&child)) + return "Working directory has staged changes"; + + read_tree[3] = sha1_to_hex(sha1); + child_process_init(&child); + child.argv = read_tree; + child.env = env->argv; + child.dir = work_tree; + child.no_stdin = 1; + child.no_stdout = 1; + child.stdout_to_stderr = 0; + child.git_cmd = 1; + if (run_command(&child)) + return "Could not update working tree to new HEAD"; + + return NULL; +} + +static const char *push_to_checkout_hook = "push-to-checkout"; + +static const char *push_to_checkout(unsigned char *sha1, + struct argv_array *env, + const char *work_tree) +{ + argv_array_pushf(env, "GIT_WORK_TREE=%s", absolute_path(work_tree)); + if (run_hook_le(env->argv, push_to_checkout_hook, + sha1_to_hex(sha1), NULL)) + return "push-to-checkout hook declined"; + else + return NULL; +} + +static const char *update_worktree(unsigned char *sha1) +{ + const char *retval; + const char *work_tree = git_work_tree_cfg ? git_work_tree_cfg : ".."; + struct argv_array env = ARGV_ARRAY_INIT; + + if (is_bare_repository()) + return "denyCurrentBranch = updateInstead needs a worktree"; + + argv_array_pushf(&env, "GIT_DIR=%s", absolute_path(get_git_dir())); + + if (!find_hook(push_to_checkout_hook)) + retval = push_to_deploy(sha1, &env, work_tree); + else + retval = push_to_checkout(sha1, &env, work_tree); + + argv_array_clear(&env); + return retval; +} + +static const char *update(struct command *cmd, struct shallow_info *si) { const char *name = cmd->ref_name; struct strbuf namespaced_name_buf = STRBUF_INIT; - const char *namespaced_name; + const char *namespaced_name, *ret; unsigned char *old_sha1 = cmd->old_sha1; unsigned char *new_sha1 = cmd->new_sha1; - struct ref_lock *lock; /* only refs/... are allowed */ - if (prefixcmp(name, "refs/") || check_refname_format(name + 5, 0)) { + if (!starts_with(name, "refs/") || check_refname_format(name + 5, 0)) { rp_error("refusing to create funny ref '%s' remotely", name); return "funny refname"; } @@ -423,6 +918,11 @@ static const char *update(struct command *cmd) if (deny_current_branch == DENY_UNCONFIGURED) refuse_unconfigured_deny(); return "branch is currently checked out"; + case DENY_UPDATE_INSTEAD: + ret = update_worktree(new_sha1); + if (ret) + return ret; + break; } } @@ -433,12 +933,12 @@ static const char *update(struct command *cmd) } if (!is_null_sha1(old_sha1) && is_null_sha1(new_sha1)) { - if (deny_deletes && !prefixcmp(name, "refs/heads/")) { + if (deny_deletes && starts_with(name, "refs/heads/")) { rp_error("denying ref deletion for %s", name); return "deletion prohibited"; } - if (!strcmp(namespaced_name, head_name)) { + if (head_name && !strcmp(namespaced_name, head_name)) { switch (deny_delete_current) { case DENY_IGNORE: break; @@ -447,20 +947,22 @@ static const char *update(struct command *cmd) break; case DENY_REFUSE: case DENY_UNCONFIGURED: + case DENY_UPDATE_INSTEAD: if (deny_delete_current == DENY_UNCONFIGURED) refuse_unconfigured_deny_delete_current(); rp_error("refusing to delete the current branch: %s", name); return "deletion of the current branch prohibited"; + default: + return "Invalid denyDeleteCurrent setting"; } } } if (deny_non_fast_forwards && !is_null_sha1(new_sha1) && !is_null_sha1(old_sha1) && - !prefixcmp(name, "refs/heads/")) { + starts_with(name, "refs/heads/")) { struct object *old_object, *new_object; struct commit *old_commit, *new_commit; - struct commit_list *bases, *ent; old_object = parse_object(old_sha1); new_object = parse_object(new_sha1); @@ -473,12 +975,7 @@ static const char *update(struct command *cmd) } old_commit = (struct commit *)old_object; new_commit = (struct commit *)new_object; - bases = get_merge_bases(old_commit, new_commit, 1); - for (ent = bases; ent; ent = ent->next) - if (!hashcmp(old_sha1, ent->item->object.sha1)) - break; - free_commit_list(bases); - if (!ent) { + if (!in_merge_bases(old_commit, new_commit)) { rp_error("denying non-fast-forward %s" " (you should pull first)", name); return "non-fast-forward"; @@ -490,6 +987,7 @@ static const char *update(struct command *cmd) } if (is_null_sha1(new_sha1)) { + struct strbuf err = STRBUF_INIT; if (!parse_object(old_sha1)) { old_sha1 = NULL; if (ref_exists(name)) { @@ -499,60 +997,65 @@ static const char *update(struct command *cmd) cmd->did_not_exist = 1; } } - if (delete_ref(namespaced_name, old_sha1, 0)) { - rp_error("failed to delete %s", name); + if (ref_transaction_delete(transaction, + namespaced_name, + old_sha1, + 0, "push", &err)) { + rp_error("%s", err.buf); + strbuf_release(&err); return "failed to delete"; } + strbuf_release(&err); return NULL; /* good */ } else { - lock = lock_any_ref_for_update(namespaced_name, old_sha1, 0); - if (!lock) { - rp_error("failed to lock %s", name); - return "failed to lock"; - } - if (write_ref_sha1(lock, new_sha1, "push")) { - return "failed to write"; /* error() already called */ + struct strbuf err = STRBUF_INIT; + if (shallow_update && si->shallow_ref[cmd->index] && + update_shallow_ref(cmd, si)) + return "shallow error"; + + if (ref_transaction_update(transaction, + namespaced_name, + new_sha1, old_sha1, + 0, "push", + &err)) { + rp_error("%s", err.buf); + strbuf_release(&err); + + return "failed to update ref"; } + strbuf_release(&err); + return NULL; /* good */ } } -static char update_post_hook[] = "hooks/post-update"; - static void run_update_post_hook(struct command *commands) { struct command *cmd; int argc; - const char **argv; - struct child_process proc; + struct child_process proc = CHILD_PROCESS_INIT; + const char *hook; + hook = find_hook("post-update"); for (argc = 0, cmd = commands; cmd; cmd = cmd->next) { if (cmd->error_string || cmd->did_not_exist) continue; argc++; } - if (!argc || access(update_post_hook, X_OK) < 0) + if (!argc || !hook) return; - argv = xmalloc(sizeof(*argv) * (2 + argc)); - argv[0] = update_post_hook; - for (argc = 1, cmd = commands; cmd; cmd = cmd->next) { - char *p; + argv_array_push(&proc.args, hook); + for (cmd = commands; cmd; cmd = cmd->next) { if (cmd->error_string || cmd->did_not_exist) continue; - p = xmalloc(strlen(cmd->ref_name) + 1); - strcpy(p, cmd->ref_name); - argv[argc] = p; - argc++; + argv_array_push(&proc.args, cmd->ref_name); } - argv[argc] = NULL; - memset(&proc, 0, sizeof(proc)); proc.no_stdin = 1; proc.stdout_to_stderr = 1; proc.err = use_sideband ? -1 : 0; - proc.argv = argv; if (!start_command(&proc)) { if (use_sideband) @@ -567,24 +1070,27 @@ static void check_aliased_update(struct command *cmd, struct string_list *list) const char *dst_name; struct string_list_item *item; struct command *dst_cmd; - unsigned char sha1[20]; - char cmd_oldh[41], cmd_newh[41], dst_oldh[41], dst_newh[41]; + unsigned char sha1[GIT_SHA1_RAWSZ]; + char cmd_oldh[GIT_SHA1_HEXSZ + 1], + cmd_newh[GIT_SHA1_HEXSZ + 1], + dst_oldh[GIT_SHA1_HEXSZ + 1], + dst_newh[GIT_SHA1_HEXSZ + 1]; int flag; strbuf_addf(&buf, "%s%s", get_git_namespace(), cmd->ref_name); - dst_name = resolve_ref_unsafe(buf.buf, sha1, 0, &flag); + dst_name = resolve_ref_unsafe(buf.buf, 0, sha1, &flag); strbuf_release(&buf); if (!(flag & REF_ISSYMREF)) return; - dst_name = strip_namespace(dst_name); if (!dst_name) { rp_error("refusing update to broken symref '%s'", cmd->ref_name); cmd->skip_update = 1; cmd->error_string = "broken symref"; return; } + dst_name = strip_namespace(dst_name); if ((item = string_list_lookup(list, dst_name)) == NULL) return; @@ -599,10 +1105,10 @@ static void check_aliased_update(struct command *cmd, struct string_list *list) dst_cmd->skip_update = 1; - strcpy(cmd_oldh, find_unique_abbrev(cmd->old_sha1, DEFAULT_ABBREV)); - strcpy(cmd_newh, find_unique_abbrev(cmd->new_sha1, DEFAULT_ABBREV)); - strcpy(dst_oldh, find_unique_abbrev(dst_cmd->old_sha1, DEFAULT_ABBREV)); - strcpy(dst_newh, find_unique_abbrev(dst_cmd->new_sha1, DEFAULT_ABBREV)); + find_unique_abbrev_r(cmd_oldh, cmd->old_sha1, DEFAULT_ABBREV); + find_unique_abbrev_r(cmd_newh, cmd->new_sha1, DEFAULT_ABBREV); + find_unique_abbrev_r(dst_oldh, dst_cmd->old_sha1, DEFAULT_ABBREV); + find_unique_abbrev_r(dst_newh, dst_cmd->new_sha1, DEFAULT_ABBREV); rp_error("refusing inconsistent update between symref '%s' (%s..%s) and" " its target '%s' (%s..%s)", cmd->ref_name, cmd_oldh, cmd_newh, @@ -622,10 +1128,12 @@ static void check_aliased_updates(struct command *commands) string_list_append(&ref_list, cmd->ref_name); item->util = (void *)cmd; } - sort_string_list(&ref_list); + string_list_sort(&ref_list); - for (cmd = commands; cmd; cmd = cmd->next) - check_aliased_update(cmd, &ref_list); + for (cmd = commands; cmd; cmd = cmd->next) { + if (!cmd->error_string) + check_aliased_update(cmd, &ref_list); + } string_list_clear(&ref_list, 0); } @@ -642,12 +1150,16 @@ static int command_singleton_iterator(void *cb_data, unsigned char sha1[20]) return 0; } -static void set_connectivity_errors(struct command *commands) +static void set_connectivity_errors(struct command *commands, + struct shallow_info *si) { struct command *cmd; for (cmd = commands; cmd; cmd = cmd->next) { struct command *singleton = cmd; + if (shallow_update && si->shallow_ref[cmd->index]) + /* to be checked in update_shallow_ref() */ + continue; if (!check_everything_connected(command_singleton_iterator, 0, &singleton)) continue; @@ -655,94 +1167,307 @@ static void set_connectivity_errors(struct command *commands) } } +struct iterate_data { + struct command *cmds; + struct shallow_info *si; +}; + static int iterate_receive_command_list(void *cb_data, unsigned char sha1[20]) { - struct command **cmd_list = cb_data; + struct iterate_data *data = cb_data; + struct command **cmd_list = &data->cmds; struct command *cmd = *cmd_list; - while (cmd) { - if (!is_null_sha1(cmd->new_sha1)) { + for (; cmd; cmd = cmd->next) { + if (shallow_update && data->si->shallow_ref[cmd->index]) + /* to be checked in update_shallow_ref() */ + continue; + if (!is_null_sha1(cmd->new_sha1) && !cmd->skip_update) { hashcpy(sha1, cmd->new_sha1); *cmd_list = cmd->next; return 0; } - cmd = cmd->next; } *cmd_list = NULL; return -1; /* end of list */ } -static void execute_commands(struct command *commands, const char *unpacker_error) +static void reject_updates_to_hidden(struct command *commands) +{ + struct strbuf refname_full = STRBUF_INIT; + size_t prefix_len; + struct command *cmd; + + strbuf_addstr(&refname_full, get_git_namespace()); + prefix_len = refname_full.len; + + for (cmd = commands; cmd; cmd = cmd->next) { + if (cmd->error_string) + continue; + + strbuf_setlen(&refname_full, prefix_len); + strbuf_addstr(&refname_full, cmd->ref_name); + + if (!ref_is_hidden(cmd->ref_name, refname_full.buf)) + continue; + if (is_null_sha1(cmd->new_sha1)) + cmd->error_string = "deny deleting a hidden ref"; + else + cmd->error_string = "deny updating a hidden ref"; + } + + strbuf_release(&refname_full); +} + +static int should_process_cmd(struct command *cmd) +{ + return !cmd->error_string && !cmd->skip_update; +} + +static void warn_if_skipped_connectivity_check(struct command *commands, + struct shallow_info *si) +{ + struct command *cmd; + int checked_connectivity = 1; + + for (cmd = commands; cmd; cmd = cmd->next) { + if (should_process_cmd(cmd) && si->shallow_ref[cmd->index]) { + error("BUG: connectivity check has not been run on ref %s", + cmd->ref_name); + checked_connectivity = 0; + } + } + if (!checked_connectivity) + die("BUG: connectivity check skipped???"); +} + +static void execute_commands_non_atomic(struct command *commands, + struct shallow_info *si) +{ + struct command *cmd; + struct strbuf err = STRBUF_INIT; + + for (cmd = commands; cmd; cmd = cmd->next) { + if (!should_process_cmd(cmd)) + continue; + + transaction = ref_transaction_begin(&err); + if (!transaction) { + rp_error("%s", err.buf); + strbuf_reset(&err); + cmd->error_string = "transaction failed to start"; + continue; + } + + cmd->error_string = update(cmd, si); + + if (!cmd->error_string + && ref_transaction_commit(transaction, &err)) { + rp_error("%s", err.buf); + strbuf_reset(&err); + cmd->error_string = "failed to update ref"; + } + ref_transaction_free(transaction); + } + strbuf_release(&err); +} + +static void execute_commands_atomic(struct command *commands, + struct shallow_info *si) +{ + struct command *cmd; + struct strbuf err = STRBUF_INIT; + const char *reported_error = "atomic push failure"; + + transaction = ref_transaction_begin(&err); + if (!transaction) { + rp_error("%s", err.buf); + strbuf_reset(&err); + reported_error = "transaction failed to start"; + goto failure; + } + + for (cmd = commands; cmd; cmd = cmd->next) { + if (!should_process_cmd(cmd)) + continue; + + cmd->error_string = update(cmd, si); + + if (cmd->error_string) + goto failure; + } + + if (ref_transaction_commit(transaction, &err)) { + rp_error("%s", err.buf); + reported_error = "atomic transaction failed"; + goto failure; + } + goto cleanup; + +failure: + for (cmd = commands; cmd; cmd = cmd->next) + if (!cmd->error_string) + cmd->error_string = reported_error; + +cleanup: + ref_transaction_free(transaction); + strbuf_release(&err); +} + +static void execute_commands(struct command *commands, + const char *unpacker_error, + struct shallow_info *si) { struct command *cmd; unsigned char sha1[20]; + struct iterate_data data; if (unpacker_error) { for (cmd = commands; cmd; cmd = cmd->next) - cmd->error_string = "n/a (unpacker error)"; + cmd->error_string = "unpacker error"; return; } - cmd = commands; - if (check_everything_connected(iterate_receive_command_list, - 0, &cmd)) - set_connectivity_errors(commands); + data.cmds = commands; + data.si = si; + if (check_everything_connected(iterate_receive_command_list, 0, &data)) + set_connectivity_errors(commands, si); - if (run_receive_hook(commands, pre_receive_hook, 0)) { - for (cmd = commands; cmd; cmd = cmd->next) - cmd->error_string = "pre-receive hook declined"; + reject_updates_to_hidden(commands); + + if (run_receive_hook(commands, "pre-receive", 0)) { + for (cmd = commands; cmd; cmd = cmd->next) { + if (!cmd->error_string) + cmd->error_string = "pre-receive hook declined"; + } return; } check_aliased_updates(commands); free(head_name_to_free); - head_name = head_name_to_free = resolve_refdup("HEAD", sha1, 0, NULL); + head_name = head_name_to_free = resolve_refdup("HEAD", 0, sha1, NULL); - for (cmd = commands; cmd; cmd = cmd->next) - if (!cmd->skip_update) - cmd->error_string = update(cmd); + if (use_atomic) + execute_commands_atomic(commands, si); + else + execute_commands_non_atomic(commands, si); + + if (shallow_update) + warn_if_skipped_connectivity_check(commands, si); +} + +static struct command **queue_command(struct command **tail, + const char *line, + int linelen) +{ + unsigned char old_sha1[20], new_sha1[20]; + struct command *cmd; + const char *refname; + int reflen; + + if (linelen < 83 || + line[40] != ' ' || + line[81] != ' ' || + get_sha1_hex(line, old_sha1) || + get_sha1_hex(line + 41, new_sha1)) + die("protocol error: expected old/new/ref, got '%s'", line); + + refname = line + 82; + reflen = linelen - 82; + cmd = xcalloc(1, st_add3(sizeof(struct command), reflen, 1)); + hashcpy(cmd->old_sha1, old_sha1); + hashcpy(cmd->new_sha1, new_sha1); + memcpy(cmd->ref_name, refname, reflen); + cmd->ref_name[reflen] = '\0'; + *tail = cmd; + return &cmd->next; +} + +static void queue_commands_from_cert(struct command **tail, + struct strbuf *push_cert) +{ + const char *boc, *eoc; + + if (*tail) + die("protocol error: got both push certificate and unsigned commands"); + + boc = strstr(push_cert->buf, "\n\n"); + if (!boc) + die("malformed push certificate %.*s", 100, push_cert->buf); + else + boc += 2; + eoc = push_cert->buf + parse_signature(push_cert->buf, push_cert->len); + + while (boc < eoc) { + const char *eol = memchr(boc, '\n', eoc - boc); + tail = queue_command(tail, boc, eol ? eol - boc : eoc - eol); + boc = eol ? eol + 1 : eoc; + } } -static struct command *read_head_info(void) +static struct command *read_head_info(struct sha1_array *shallow) { struct command *commands = NULL; struct command **p = &commands; for (;;) { - static char line[1000]; - unsigned char old_sha1[20], new_sha1[20]; - struct command *cmd; - char *refname; - int len, reflen; - - len = packet_read_line(0, line, sizeof(line)); - if (!len) + char *line; + int len, linelen; + + line = packet_read_line(0, &len); + if (!line) break; - if (line[len-1] == '\n') - line[--len] = 0; - if (len < 83 || - line[40] != ' ' || - line[81] != ' ' || - get_sha1_hex(line, old_sha1) || - get_sha1_hex(line + 41, new_sha1)) - die("protocol error: expected old/new/ref, got '%s'", - line); - - refname = line + 82; - reflen = strlen(refname); - if (reflen + 82 < len) { - if (strstr(refname + reflen + 1, "report-status")) + + if (len == 48 && starts_with(line, "shallow ")) { + unsigned char sha1[20]; + if (get_sha1_hex(line + 8, sha1)) + die("protocol error: expected shallow sha, got '%s'", + line + 8); + sha1_array_append(shallow, sha1); + continue; + } + + linelen = strlen(line); + if (linelen < len) { + const char *feature_list = line + linelen + 1; + if (parse_feature_request(feature_list, "report-status")) report_status = 1; - if (strstr(refname + reflen + 1, "side-band-64k")) + if (parse_feature_request(feature_list, "side-band-64k")) use_sideband = LARGE_PACKET_MAX; + if (parse_feature_request(feature_list, "quiet")) + quiet = 1; + if (advertise_atomic_push + && parse_feature_request(feature_list, "atomic")) + use_atomic = 1; + } + + if (!strcmp(line, "push-cert")) { + int true_flush = 0; + char certbuf[1024]; + + for (;;) { + len = packet_read(0, NULL, NULL, + certbuf, sizeof(certbuf), 0); + if (!len) { + true_flush = 1; + break; + } + if (!strcmp(certbuf, "push-cert-end\n")) + break; /* end of cert */ + strbuf_addstr(&push_cert, certbuf); + } + + if (true_flush) + break; + continue; } - cmd = xcalloc(1, sizeof(struct command) + len - 80); - hashcpy(cmd->old_sha1, old_sha1); - hashcpy(cmd->new_sha1, new_sha1); - memcpy(cmd->ref_name, line + 82, len - 81); - *p = cmd; - p = &cmd->next; + + p = queue_command(p, line, linelen); } + + if (push_cert.len) + queue_commands_from_cert(p, &push_cert); + return commands; } @@ -768,11 +1493,13 @@ static const char *parse_pack_header(struct pack_header *hdr) static const char *pack_lockfile; -static const char *unpack(void) +static const char *unpack(int err_fd, struct shallow_info *si) { struct pack_header hdr; const char *hdr_err; + int status; char hdr_arg[38]; + struct child_process child = CHILD_PROCESS_INIT; int fsck_objects = (receive_fsck_objects >= 0 ? receive_fsck_objects : transfer_fsck_objects >= 0 @@ -780,59 +1507,170 @@ static const char *unpack(void) : 0); hdr_err = parse_pack_header(&hdr); - if (hdr_err) + if (hdr_err) { + if (err_fd > 0) + close(err_fd); return hdr_err; + } snprintf(hdr_arg, sizeof(hdr_arg), "--pack_header=%"PRIu32",%"PRIu32, ntohl(hdr.hdr_version), ntohl(hdr.hdr_entries)); + if (si->nr_ours || si->nr_theirs) { + alt_shallow_file = setup_temporary_shallow(si->shallow); + argv_array_push(&child.args, "--shallow-file"); + argv_array_push(&child.args, alt_shallow_file); + } + if (ntohl(hdr.hdr_entries) < unpack_limit) { - int code, i = 0; - const char *unpacker[4]; - unpacker[i++] = "unpack-objects"; + argv_array_pushl(&child.args, "unpack-objects", hdr_arg, NULL); + if (quiet) + argv_array_push(&child.args, "-q"); if (fsck_objects) - unpacker[i++] = "--strict"; - unpacker[i++] = hdr_arg; - unpacker[i++] = NULL; - code = run_command_v_opt(unpacker, RUN_GIT_CMD); - if (!code) - return NULL; - return "unpack-objects abnormal exit"; + argv_array_pushf(&child.args, "--strict%s", + fsck_msg_types.buf); + child.no_stdout = 1; + child.err = err_fd; + child.git_cmd = 1; + status = run_command(&child); + if (status) + return "unpack-objects abnormal exit"; } else { - const char *keeper[7]; - int s, status, i = 0; - char keep_arg[256]; - struct child_process ip; + char hostname[256]; - s = sprintf(keep_arg, "--keep=receive-pack %"PRIuMAX" on ", (uintmax_t) getpid()); - if (gethostname(keep_arg + s, sizeof(keep_arg) - s)) - strcpy(keep_arg + s, "localhost"); + argv_array_pushl(&child.args, "index-pack", + "--stdin", hdr_arg, NULL); + + if (gethostname(hostname, sizeof(hostname))) + xsnprintf(hostname, sizeof(hostname), "localhost"); + argv_array_pushf(&child.args, + "--keep=receive-pack %"PRIuMAX" on %s", + (uintmax_t)getpid(), + hostname); - keeper[i++] = "index-pack"; - keeper[i++] = "--stdin"; if (fsck_objects) - keeper[i++] = "--strict"; - keeper[i++] = "--fix-thin"; - keeper[i++] = hdr_arg; - keeper[i++] = keep_arg; - keeper[i++] = NULL; - memset(&ip, 0, sizeof(ip)); - ip.argv = keeper; - ip.out = -1; - ip.git_cmd = 1; - status = start_command(&ip); - if (status) { + argv_array_pushf(&child.args, "--strict%s", + fsck_msg_types.buf); + if (!reject_thin) + argv_array_push(&child.args, "--fix-thin"); + child.out = -1; + child.err = err_fd; + child.git_cmd = 1; + status = start_command(&child); + if (status) return "index-pack fork failed"; + pack_lockfile = index_pack_lockfile(child.out); + close(child.out); + status = finish_command(&child); + if (status) + return "index-pack abnormal exit"; + reprepare_packed_git(); + } + return NULL; +} + +static const char *unpack_with_sideband(struct shallow_info *si) +{ + struct async muxer; + const char *ret; + + if (!use_sideband) + return unpack(0, si); + + memset(&muxer, 0, sizeof(muxer)); + muxer.proc = copy_to_sideband; + muxer.in = -1; + if (start_async(&muxer)) + return NULL; + + ret = unpack(muxer.in, si); + + finish_async(&muxer); + return ret; +} + +static void prepare_shallow_update(struct command *commands, + struct shallow_info *si) +{ + int i, j, k, bitmap_size = (si->ref->nr + 31) / 32; + + ALLOC_ARRAY(si->used_shallow, si->shallow->nr); + assign_shallow_commits_to_refs(si, si->used_shallow, NULL); + + si->need_reachability_test = + xcalloc(si->shallow->nr, sizeof(*si->need_reachability_test)); + si->reachable = + xcalloc(si->shallow->nr, sizeof(*si->reachable)); + si->shallow_ref = xcalloc(si->ref->nr, sizeof(*si->shallow_ref)); + + for (i = 0; i < si->nr_ours; i++) + si->need_reachability_test[si->ours[i]] = 1; + + for (i = 0; i < si->shallow->nr; i++) { + if (!si->used_shallow[i]) + continue; + for (j = 0; j < bitmap_size; j++) { + if (!si->used_shallow[i][j]) + continue; + si->need_reachability_test[i]++; + for (k = 0; k < 32; k++) + if (si->used_shallow[i][j] & (1U << k)) + si->shallow_ref[j * 32 + k]++; } - pack_lockfile = index_pack_lockfile(ip.out); - close(ip.out); - status = finish_command(&ip); - if (!status) { - reprepare_packed_git(); - return NULL; + + /* + * true for those associated with some refs and belong + * in "ours" list aka "step 7 not done yet" + */ + si->need_reachability_test[i] = + si->need_reachability_test[i] > 1; + } + + /* + * keep hooks happy by forcing a temporary shallow file via + * env variable because we can't add --shallow-file to every + * command. check_everything_connected() will be done with + * true .git/shallow though. + */ + setenv(GIT_SHALLOW_FILE_ENVIRONMENT, alt_shallow_file, 1); +} + +static void update_shallow_info(struct command *commands, + struct shallow_info *si, + struct sha1_array *ref) +{ + struct command *cmd; + int *ref_status; + remove_nonexistent_theirs_shallow(si); + if (!si->nr_ours && !si->nr_theirs) { + shallow_update = 0; + return; + } + + for (cmd = commands; cmd; cmd = cmd->next) { + if (is_null_sha1(cmd->new_sha1)) + continue; + sha1_array_append(ref, cmd->new_sha1); + cmd->index = ref->nr - 1; + } + si->ref = ref; + + if (shallow_update) { + prepare_shallow_update(commands, si); + return; + } + + ALLOC_ARRAY(ref_status, ref->nr); + assign_shallow_commits_to_refs(si, NULL, ref_status); + for (cmd = commands; cmd; cmd = cmd->next) { + if (is_null_sha1(cmd->new_sha1)) + continue; + if (ref_status[cmd->index]) { + cmd->error_string = "shallow update not allowed"; + cmd->skip_update = 1; } - return "index-pack abnormal exit"; } + free(ref_status); } static void report(struct command *commands, const char *unpack_status) @@ -855,7 +1693,7 @@ static void report(struct command *commands, const char *unpack_status) if (use_sideband) send_sideband(1, 1, buf.buf, buf.len, use_sideband); else - safe_write(1, buf.buf, buf.len); + write_or_die(1, buf.buf, buf.len); strbuf_release(&buf); } @@ -869,67 +1707,41 @@ static int delete_only(struct command *commands) return 1; } -static void add_one_alternate_sha1(const unsigned char sha1[20], void *unused) -{ - add_extra_ref(".have", sha1, 0); -} - -static void collect_one_alternate_ref(const struct ref *ref, void *data) -{ - struct sha1_array *sa = data; - sha1_array_append(sa, ref->old_sha1); -} - -static void add_alternate_refs(void) -{ - struct sha1_array sa = SHA1_ARRAY_INIT; - for_each_alternate_ref(collect_one_alternate_ref, &sa); - sha1_array_for_each_unique(&sa, add_one_alternate_sha1, NULL); - sha1_array_clear(&sa); -} - int cmd_receive_pack(int argc, const char **argv, const char *prefix) { int advertise_refs = 0; - int stateless_rpc = 0; - int i; - char *dir = NULL; struct command *commands; + struct sha1_array shallow = SHA1_ARRAY_INIT; + struct sha1_array ref = SHA1_ARRAY_INIT; + struct shallow_info si; + + struct option options[] = { + OPT__QUIET(&quiet, N_("quiet")), + OPT_HIDDEN_BOOL(0, "stateless-rpc", &stateless_rpc, NULL), + OPT_HIDDEN_BOOL(0, "advertise-refs", &advertise_refs, NULL), + OPT_HIDDEN_BOOL(0, "reject-thin-pack-for-testing", &reject_thin, NULL), + OPT_END() + }; packet_trace_identity("receive-pack"); - argv++; - for (i = 1; i < argc; i++) { - const char *arg = *argv++; + argc = parse_options(argc, argv, prefix, options, receive_pack_usage, 0); - if (*arg == '-') { - if (!strcmp(arg, "--advertise-refs")) { - advertise_refs = 1; - continue; - } - if (!strcmp(arg, "--stateless-rpc")) { - stateless_rpc = 1; - continue; - } + if (argc > 1) + usage_msg_opt(_("Too many arguments."), receive_pack_usage, options); + if (argc == 0) + usage_msg_opt(_("You must specify a directory."), receive_pack_usage, options); - usage(receive_pack_usage); - } - if (dir) - usage(receive_pack_usage); - dir = xstrdup(arg); - } - if (!dir) - usage(receive_pack_usage); + service_dir = argv[0]; setup_path(); - if (!enter_repo(dir, 0)) - die("'%s' does not appear to be a git repository", dir); - - if (is_repository_shallow()) - die("attempt to push into a shallow repository"); + if (!enter_repo(service_dir, 0)) + die("'%s' does not appear to be a git repository", service_dir); git_config(receive_pack_config, NULL); + if (cert_nonce_seed) + push_cert_nonce = prepare_push_cert_nonce(service_dir, time(NULL)); if (0 <= transfer_unpack_limit) unpack_limit = transfer_unpack_limit; @@ -937,38 +1749,44 @@ int cmd_receive_pack(int argc, const char **argv, const char *prefix) unpack_limit = receive_unpack_limit; if (advertise_refs || !stateless_rpc) { - add_alternate_refs(); write_head_info(); - clear_extra_refs(); - - /* EOF */ - packet_flush(1); } if (advertise_refs) return 0; - if ((commands = read_head_info()) != NULL) { + if ((commands = read_head_info(&shallow)) != NULL) { const char *unpack_status = NULL; - if (!delete_only(commands)) - unpack_status = unpack(); - execute_commands(commands, unpack_status); + prepare_shallow_info(&si, &shallow); + if (!si.nr_ours && !si.nr_theirs) + shallow_update = 0; + if (!delete_only(commands)) { + unpack_status = unpack_with_sideband(&si); + update_shallow_info(commands, &si, &ref); + } + execute_commands(commands, unpack_status, &si); if (pack_lockfile) unlink_or_warn(pack_lockfile); if (report_status) report(commands, unpack_status); - run_receive_hook(commands, post_receive_hook, 1); + run_receive_hook(commands, "post-receive", 1); run_update_post_hook(commands); if (auto_gc) { const char *argv_gc_auto[] = { "gc", "--auto", "--quiet", NULL, }; - run_command_v_opt(argv_gc_auto, RUN_GIT_CMD); + int opt = RUN_GIT_CMD | RUN_COMMAND_STDOUT_TO_STDERR; + close_all_packs(); + run_command_v_opt(argv_gc_auto, opt); } if (auto_update_server_info) update_server_info(0); + clear_shallow_info(&si); } if (use_sideband) packet_flush(1); + sha1_array_clear(&shallow); + sha1_array_clear(&ref); + free((void *)push_cert_nonce); return 0; } diff --git a/builtin/reflog.c b/builtin/reflog.c index 062d7dad1b..7a7136e53e 100644 --- a/builtin/reflog.c +++ b/builtin/reflog.c @@ -1,5 +1,5 @@ -#include "cache.h" #include "builtin.h" +#include "lockfile.h" #include "commit.h" #include "refs.h" #include "dir.h" @@ -8,32 +8,26 @@ #include "revision.h" #include "reachable.h" -/* - * reflog expire - */ - +/* NEEDSWORK: switch to using parse_options */ static const char reflog_expire_usage[] = -"git reflog expire [--verbose] [--dry-run] [--stale-fix] [--expire=<time>] [--expire-unreachable=<time>] [--all] <refs>..."; +"git reflog expire [--expire=<time>] [--expire-unreachable=<time>] [--rewrite] [--updateref] [--stale-fix] [--dry-run | -n] [--verbose] [--all] <refs>..."; static const char reflog_delete_usage[] = -"git reflog delete [--verbose] [--dry-run] [--rewrite] [--updateref] <refs>..."; +"git reflog delete [--rewrite] [--updateref] [--dry-run | -n] [--verbose] <refs>..."; +static const char reflog_exists_usage[] = +"git reflog exists <ref>"; static unsigned long default_reflog_expire; static unsigned long default_reflog_expire_unreachable; struct cmd_reflog_expire_cb { struct rev_info revs; - int dry_run; int stalefix; - int rewrite; - int updateref; - int verbose; unsigned long expire_total; unsigned long expire_unreachable; int recno; }; -struct expire_reflog_cb { - FILE *newlog; +struct expire_reflog_policy_cb { enum { UE_NORMAL, UE_ALWAYS, @@ -41,14 +35,16 @@ struct expire_reflog_cb { } unreachable_expire_kind; struct commit_list *mark_list; unsigned long mark_limit; - struct cmd_reflog_expire_cb *cmd; - unsigned char last_kept_sha1[20]; + struct cmd_reflog_expire_cb cmd; + struct commit *tip_commit; + struct commit_list *tips; }; struct collected_reflog { unsigned char sha1[20]; char reflog[FLEX_ARRAY]; }; + struct collect_reflog_cb { struct collected_reflog **e; int alloc; @@ -88,14 +84,13 @@ static int tree_is_complete(const unsigned char *sha1) init_tree_desc(&desc, tree->buffer, tree->size); complete = 1; while (tree_entry(&desc, &entry)) { - if (!has_sha1_file(entry.sha1) || - (S_ISDIR(entry.mode) && !tree_is_complete(entry.sha1))) { + if (!has_sha1_file(entry.oid->hash) || + (S_ISDIR(entry.mode) && !tree_is_complete(entry.oid->hash))) { tree->object.flags |= INCOMPLETE; complete = 0; } } - free(tree->buffer); - tree->buffer = NULL; + free_tree_buffer(tree); if (complete) tree->object.flags |= SEEN; @@ -131,7 +126,7 @@ static int commit_is_complete(struct commit *commit) struct commit_list *parent; c = (struct commit *)study.objects[--study.nr].item; - if (!c->object.parsed && !parse_object(c->object.sha1)) + if (!c->object.parsed && !parse_object(c->object.oid.hash)) c->object.flags |= INCOMPLETE; if (c->object.flags & INCOMPLETE) { @@ -157,7 +152,7 @@ static int commit_is_complete(struct commit *commit) for (i = 0; i < found.nr; i++) { struct commit *c = (struct commit *)found.objects[i].item; - if (!tree_is_complete(c->tree->object.sha1)) { + if (!tree_is_complete(c->tree->object.oid.hash)) { is_incomplete = 1; c->object.flags |= INCOMPLETE; } @@ -221,9 +216,8 @@ static int keep_entry(struct commit **it, unsigned char *sha1) * the expire_limit and queue them back, so that the caller can call * us again to restart the traversal with longer expire_limit. */ -static void mark_reachable(struct expire_reflog_cb *cb) +static void mark_reachable(struct expire_reflog_policy_cb *cb) { - struct commit *commit; struct commit_list *pending; unsigned long expire_limit = cb->mark_limit; struct commit_list *leftover = NULL; @@ -233,11 +227,8 @@ static void mark_reachable(struct expire_reflog_cb *cb) pending = cb->mark_list; while (pending) { - struct commit_list *entry = pending; struct commit_list *parent; - pending = entry->next; - commit = entry->item; - free(entry); + struct commit *commit = pop_commit(&pending); if (commit->object.flags & REACHABLE) continue; if (parse_commit(commit)) @@ -260,7 +251,7 @@ static void mark_reachable(struct expire_reflog_cb *cb) cb->mark_list = leftover; } -static int unreachable(struct expire_reflog_cb *cb, struct commit *commit, unsigned char *sha1) +static int unreachable(struct expire_reflog_policy_cb *cb, struct commit *commit, unsigned char *sha1) { /* * We may or may not have the commit yet - if not, look it @@ -289,174 +280,111 @@ static int unreachable(struct expire_reflog_cb *cb, struct commit *commit, unsig return !(commit->object.flags & REACHABLE); } -static int expire_reflog_ent(unsigned char *osha1, unsigned char *nsha1, - const char *email, unsigned long timestamp, int tz, - const char *message, void *cb_data) +/* + * Return true iff the specified reflog entry should be expired. + */ +static int should_expire_reflog_ent(unsigned char *osha1, unsigned char *nsha1, + const char *email, unsigned long timestamp, int tz, + const char *message, void *cb_data) { - struct expire_reflog_cb *cb = cb_data; + struct expire_reflog_policy_cb *cb = cb_data; struct commit *old, *new; - if (timestamp < cb->cmd->expire_total) - goto prune; - - if (cb->cmd->rewrite) - osha1 = cb->last_kept_sha1; + if (timestamp < cb->cmd.expire_total) + return 1; old = new = NULL; - if (cb->cmd->stalefix && + if (cb->cmd.stalefix && (!keep_entry(&old, osha1) || !keep_entry(&new, nsha1))) - goto prune; + return 1; - if (timestamp < cb->cmd->expire_unreachable) { + if (timestamp < cb->cmd.expire_unreachable) { if (cb->unreachable_expire_kind == UE_ALWAYS) - goto prune; + return 1; if (unreachable(cb, old, osha1) || unreachable(cb, new, nsha1)) - goto prune; + return 1; } - if (cb->cmd->recno && --(cb->cmd->recno) == 0) - goto prune; - - if (cb->newlog) { - char sign = (tz < 0) ? '-' : '+'; - int zone = (tz < 0) ? (-tz) : tz; - fprintf(cb->newlog, "%s %s %s %lu %c%04d\t%s", - sha1_to_hex(osha1), sha1_to_hex(nsha1), - email, timestamp, sign, zone, - message); - hashcpy(cb->last_kept_sha1, nsha1); - } - if (cb->cmd->verbose) - printf("keep %s", message); - return 0; - prune: - if (!cb->newlog || cb->cmd->verbose) - printf("%sprune %s", cb->newlog ? "" : "would ", message); + if (cb->cmd.recno && --(cb->cmd.recno) == 0) + return 1; + return 0; } -static int push_tip_to_list(const char *refname, const unsigned char *sha1, int flags, void *cb_data) +static int push_tip_to_list(const char *refname, const struct object_id *oid, + int flags, void *cb_data) { struct commit_list **list = cb_data; struct commit *tip_commit; if (flags & REF_ISSYMREF) return 0; - tip_commit = lookup_commit_reference_gently(sha1, 1); + tip_commit = lookup_commit_reference_gently(oid->hash, 1); if (!tip_commit) return 0; commit_list_insert(tip_commit, list); return 0; } -static int expire_reflog(const char *ref, const unsigned char *sha1, int unused, void *cb_data) +static void reflog_expiry_prepare(const char *refname, + const unsigned char *sha1, + void *cb_data) { - struct cmd_reflog_expire_cb *cmd = cb_data; - struct expire_reflog_cb cb; - struct ref_lock *lock; - char *log_file, *newlog_path = NULL; - struct commit *tip_commit; - struct commit_list *tips; - int status = 0; - - memset(&cb, 0, sizeof(cb)); - - /* - * we take the lock for the ref itself to prevent it from - * getting updated. - */ - lock = lock_any_ref_for_update(ref, sha1, 0); - if (!lock) - return error("cannot lock ref '%s'", ref); - log_file = git_pathdup("logs/%s", ref); - if (!file_exists(log_file)) - goto finish; - if (!cmd->dry_run) { - newlog_path = git_pathdup("logs/%s.lock", ref); - cb.newlog = fopen(newlog_path, "w"); - } - - cb.cmd = cmd; + struct expire_reflog_policy_cb *cb = cb_data; - if (!cmd->expire_unreachable || !strcmp(ref, "HEAD")) { - tip_commit = NULL; - cb.unreachable_expire_kind = UE_HEAD; + if (!cb->cmd.expire_unreachable || !strcmp(refname, "HEAD")) { + cb->tip_commit = NULL; + cb->unreachable_expire_kind = UE_HEAD; } else { - tip_commit = lookup_commit_reference_gently(sha1, 1); - if (!tip_commit) - cb.unreachable_expire_kind = UE_ALWAYS; + cb->tip_commit = lookup_commit_reference_gently(sha1, 1); + if (!cb->tip_commit) + cb->unreachable_expire_kind = UE_ALWAYS; else - cb.unreachable_expire_kind = UE_NORMAL; + cb->unreachable_expire_kind = UE_NORMAL; } - if (cmd->expire_unreachable <= cmd->expire_total) - cb.unreachable_expire_kind = UE_ALWAYS; + if (cb->cmd.expire_unreachable <= cb->cmd.expire_total) + cb->unreachable_expire_kind = UE_ALWAYS; - cb.mark_list = NULL; - tips = NULL; - if (cb.unreachable_expire_kind != UE_ALWAYS) { - if (cb.unreachable_expire_kind == UE_HEAD) { + cb->mark_list = NULL; + cb->tips = NULL; + if (cb->unreachable_expire_kind != UE_ALWAYS) { + if (cb->unreachable_expire_kind == UE_HEAD) { struct commit_list *elem; - for_each_ref(push_tip_to_list, &tips); - for (elem = tips; elem; elem = elem->next) - commit_list_insert(elem->item, &cb.mark_list); + + for_each_ref(push_tip_to_list, &cb->tips); + for (elem = cb->tips; elem; elem = elem->next) + commit_list_insert(elem->item, &cb->mark_list); } else { - commit_list_insert(tip_commit, &cb.mark_list); + commit_list_insert(cb->tip_commit, &cb->mark_list); } - cb.mark_limit = cmd->expire_total; - mark_reachable(&cb); + cb->mark_limit = cb->cmd.expire_total; + mark_reachable(cb); } +} - for_each_reflog_ent(ref, expire_reflog_ent, &cb); +static void reflog_expiry_cleanup(void *cb_data) +{ + struct expire_reflog_policy_cb *cb = cb_data; - if (cb.unreachable_expire_kind != UE_ALWAYS) { - if (cb.unreachable_expire_kind == UE_HEAD) { + if (cb->unreachable_expire_kind != UE_ALWAYS) { + if (cb->unreachable_expire_kind == UE_HEAD) { struct commit_list *elem; - for (elem = tips; elem; elem = elem->next) - clear_commit_marks(tip_commit, REACHABLE); - free_commit_list(tips); - } else { - clear_commit_marks(tip_commit, REACHABLE); - } - } - finish: - if (cb.newlog) { - if (fclose(cb.newlog)) { - status |= error("%s: %s", strerror(errno), - newlog_path); - unlink(newlog_path); - } else if (cmd->updateref && - (write_in_full(lock->lock_fd, - sha1_to_hex(cb.last_kept_sha1), 40) != 40 || - write_str_in_full(lock->lock_fd, "\n") != 1 || - close_ref(lock) < 0)) { - status |= error("Couldn't write %s", - lock->lk->filename); - unlink(newlog_path); - } else if (rename(newlog_path, log_file)) { - status |= error("cannot rename %s to %s", - newlog_path, log_file); - unlink(newlog_path); - } else if (cmd->updateref && commit_ref(lock)) { - status |= error("Couldn't set %s", lock->ref_name); + for (elem = cb->tips; elem; elem = elem->next) + clear_commit_marks(elem->item, REACHABLE); + free_commit_list(cb->tips); } else { - adjust_shared_perm(log_file); + clear_commit_marks(cb->tip_commit, REACHABLE); } } - free(newlog_path); - free(log_file); - unlock_ref(lock); - return status; } -static int collect_reflog(const char *ref, const unsigned char *sha1, int unused, void *cb_data) +static int collect_reflog(const char *ref, const struct object_id *oid, int unused, void *cb_data) { struct collected_reflog *e; struct collect_reflog_cb *cb = cb_data; - size_t namelen = strlen(ref); - e = xmalloc(sizeof(*e) + namelen + 1); - hashcpy(e->sha1, sha1); - memcpy(e->reflog, ref, namelen + 1); + FLEX_ALLOC_STR(e, reflog, ref); + hashcpy(e->sha1, oid->hash); ALLOC_GROW(cb->e, cb->nr + 1, cb->alloc); cb->e[cb->nr++] = e; return 0; @@ -466,7 +394,6 @@ static struct reflog_expire_cfg { struct reflog_expire_cfg *next; unsigned long expire_total; unsigned long expire_unreachable; - size_t len; char pattern[FLEX_ARRAY]; } *reflog_expire_cfg, **reflog_expire_cfg_tail; @@ -478,13 +405,11 @@ static struct reflog_expire_cfg *find_cfg_ent(const char *pattern, size_t len) reflog_expire_cfg_tail = &reflog_expire_cfg; for (ent = reflog_expire_cfg; ent; ent = ent->next) - if (ent->len == len && - !memcmp(ent->pattern, pattern, len)) + if (!strncmp(ent->pattern, pattern, len) && + ent->pattern[len] == '\0') return ent; - ent = xcalloc(1, (sizeof(*ent) + len)); - memcpy(ent->pattern, pattern, len); - ent->len = len; + FLEX_ALLOC_MEM(ent, pattern, pattern, len); *reflog_expire_cfg_tail = ent; reflog_expire_cfg_tail = &(ent->next); return ent; @@ -494,11 +419,9 @@ static int parse_expire_cfg_value(const char *var, const char *value, unsigned l { if (!value) return config_error_nonbool(var); - if (!strcmp(value, "never") || !strcmp(value, "false")) { - *expire = 0; - return 0; - } - *expire = approxidate(value); + if (parse_expiry_date(value, expire)) + return error(_("'%s' for '%s' is not a valid timestamp"), + value, var); return 0; } @@ -508,26 +431,27 @@ static int parse_expire_cfg_value(const char *var, const char *value, unsigned l static int reflog_expire_config(const char *var, const char *value, void *cb) { - const char *lastdot = strrchr(var, '.'); + const char *pattern, *key; + int pattern_len; unsigned long expire; int slot; struct reflog_expire_cfg *ent; - if (!lastdot || prefixcmp(var, "gc.")) + if (parse_config_key(var, "gc", &pattern, &pattern_len, &key) < 0) return git_default_config(var, value, cb); - if (!strcmp(lastdot, ".reflogexpire")) { + if (!strcmp(key, "reflogexpire")) { slot = EXPIRE_TOTAL; if (parse_expire_cfg_value(var, value, &expire)) return -1; - } else if (!strcmp(lastdot, ".reflogexpireunreachable")) { + } else if (!strcmp(key, "reflogexpireunreachable")) { slot = EXPIRE_UNREACH; if (parse_expire_cfg_value(var, value, &expire)) return -1; } else return git_default_config(var, value, cb); - if (lastdot == var + 2) { + if (!pattern) { switch (slot) { case EXPIRE_TOTAL: default_reflog_expire = expire; @@ -539,7 +463,7 @@ static int reflog_expire_config(const char *var, const char *value, void *cb) return 0; } - ent = find_cfg_ent(var + 3, lastdot - (var+3)); + ent = find_cfg_ent(pattern, pattern_len); if (!ent) return -1; switch (slot) { @@ -561,7 +485,7 @@ static void set_reflog_expiry_param(struct cmd_reflog_expire_cb *cb, int slot, c return; /* both given explicitly -- nothing to tweak */ for (ent = reflog_expire_cfg; ent; ent = ent->next) { - if (!fnmatch(ent->pattern, ref, 0)) { + if (!wildmatch(ent->pattern, ref, 0, NULL)) { if (!(slot & EXPIRE_TOTAL)) cb->expire_total = ent->expire_total; if (!(slot & EXPIRE_UNREACH)) @@ -590,10 +514,11 @@ static void set_reflog_expiry_param(struct cmd_reflog_expire_cb *cb, int slot, c static int cmd_reflog_expire(int argc, const char **argv, const char *prefix) { - struct cmd_reflog_expire_cb cb; + struct expire_reflog_policy_cb cb; unsigned long now = time(NULL); int i, status, do_all; int explicit_expiry = 0; + unsigned int flags = 0; default_reflog_expire_unreachable = now - 30 * 24 * 3600; default_reflog_expire = now - 90 * 24 * 3600; @@ -603,31 +528,33 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix) do_all = status = 0; memset(&cb, 0, sizeof(cb)); - cb.expire_total = default_reflog_expire; - cb.expire_unreachable = default_reflog_expire_unreachable; + cb.cmd.expire_total = default_reflog_expire; + cb.cmd.expire_unreachable = default_reflog_expire_unreachable; for (i = 1; i < argc; i++) { const char *arg = argv[i]; if (!strcmp(arg, "--dry-run") || !strcmp(arg, "-n")) - cb.dry_run = 1; - else if (!prefixcmp(arg, "--expire=")) { - cb.expire_total = approxidate(arg + 9); + flags |= EXPIRE_REFLOGS_DRY_RUN; + else if (starts_with(arg, "--expire=")) { + if (parse_expiry_date(arg + 9, &cb.cmd.expire_total)) + die(_("'%s' is not a valid timestamp"), arg); explicit_expiry |= EXPIRE_TOTAL; } - else if (!prefixcmp(arg, "--expire-unreachable=")) { - cb.expire_unreachable = approxidate(arg + 21); + else if (starts_with(arg, "--expire-unreachable=")) { + if (parse_expiry_date(arg + 21, &cb.cmd.expire_unreachable)) + die(_("'%s' is not a valid timestamp"), arg); explicit_expiry |= EXPIRE_UNREACH; } else if (!strcmp(arg, "--stale-fix")) - cb.stalefix = 1; + cb.cmd.stalefix = 1; else if (!strcmp(arg, "--rewrite")) - cb.rewrite = 1; + flags |= EXPIRE_REFLOGS_REWRITE; else if (!strcmp(arg, "--updateref")) - cb.updateref = 1; + flags |= EXPIRE_REFLOGS_UPDATE_REF; else if (!strcmp(arg, "--all")) do_all = 1; else if (!strcmp(arg, "--verbose")) - cb.verbose = 1; + flags |= EXPIRE_REFLOGS_VERBOSE; else if (!strcmp(arg, "--")) { i++; break; @@ -643,12 +570,12 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix) * even in older repository. We cannot trust what's reachable * from reflog if the repository was pruned with older git. */ - if (cb.stalefix) { - init_revisions(&cb.revs, prefix); - if (cb.verbose) + if (cb.cmd.stalefix) { + init_revisions(&cb.cmd.revs, prefix); + if (flags & EXPIRE_REFLOGS_VERBOSE) printf("Marking reachable objects..."); - mark_reachable_objects(&cb.revs, 0, NULL); - if (cb.verbose) + mark_reachable_objects(&cb.cmd.revs, 0, 0, NULL); + if (flags & EXPIRE_REFLOGS_VERBOSE) putchar('\n'); } @@ -660,8 +587,12 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix) for_each_reflog(collect_reflog, &collected); for (i = 0; i < collected.nr; i++) { struct collected_reflog *e = collected.e[i]; - set_reflog_expiry_param(&cb, explicit_expiry, e->reflog); - status |= expire_reflog(e->reflog, e->sha1, 0, &cb); + set_reflog_expiry_param(&cb.cmd, explicit_expiry, e->reflog); + status |= reflog_expire(e->reflog, e->sha1, flags, + reflog_expiry_prepare, + should_expire_reflog_ent, + reflog_expiry_cleanup, + &cb); free(e); } free(collected.e); @@ -674,8 +605,12 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix) status |= error("%s points nowhere!", argv[i]); continue; } - set_reflog_expiry_param(&cb, explicit_expiry, ref); - status |= expire_reflog(ref, sha1, 0, &cb); + set_reflog_expiry_param(&cb.cmd, explicit_expiry, ref); + status |= reflog_expire(ref, sha1, flags, + reflog_expiry_prepare, + should_expire_reflog_ent, + reflog_expiry_cleanup, + &cb); } return status; } @@ -684,29 +619,30 @@ static int count_reflog_ent(unsigned char *osha1, unsigned char *nsha1, const char *email, unsigned long timestamp, int tz, const char *message, void *cb_data) { - struct cmd_reflog_expire_cb *cb = cb_data; - if (!cb->expire_total || timestamp < cb->expire_total) - cb->recno++; + struct expire_reflog_policy_cb *cb = cb_data; + if (!cb->cmd.expire_total || timestamp < cb->cmd.expire_total) + cb->cmd.recno++; return 0; } static int cmd_reflog_delete(int argc, const char **argv, const char *prefix) { - struct cmd_reflog_expire_cb cb; + struct expire_reflog_policy_cb cb; int i, status = 0; + unsigned int flags = 0; memset(&cb, 0, sizeof(cb)); for (i = 1; i < argc; i++) { const char *arg = argv[i]; if (!strcmp(arg, "--dry-run") || !strcmp(arg, "-n")) - cb.dry_run = 1; + flags |= EXPIRE_REFLOGS_DRY_RUN; else if (!strcmp(arg, "--rewrite")) - cb.rewrite = 1; + flags |= EXPIRE_REFLOGS_REWRITE; else if (!strcmp(arg, "--updateref")) - cb.updateref = 1; + flags |= EXPIRE_REFLOGS_UPDATE_REF; else if (!strcmp(arg, "--verbose")) - cb.verbose = 1; + flags |= EXPIRE_REFLOGS_VERBOSE; else if (!strcmp(arg, "--")) { i++; break; @@ -738,26 +674,56 @@ static int cmd_reflog_delete(int argc, const char **argv, const char *prefix) recno = strtoul(spec + 2, &ep, 10); if (*ep == '}') { - cb.recno = -recno; + cb.cmd.recno = -recno; for_each_reflog_ent(ref, count_reflog_ent, &cb); } else { - cb.expire_total = approxidate(spec + 2); + cb.cmd.expire_total = approxidate(spec + 2); for_each_reflog_ent(ref, count_reflog_ent, &cb); - cb.expire_total = 0; + cb.cmd.expire_total = 0; } - status |= expire_reflog(ref, sha1, 0, &cb); + status |= reflog_expire(ref, sha1, flags, + reflog_expiry_prepare, + should_expire_reflog_ent, + reflog_expiry_cleanup, + &cb); free(ref); } return status; } +static int cmd_reflog_exists(int argc, const char **argv, const char *prefix) +{ + int i, start = 0; + + for (i = 1; i < argc; i++) { + const char *arg = argv[i]; + if (!strcmp(arg, "--")) { + i++; + break; + } + else if (arg[0] == '-') + usage(reflog_exists_usage); + else + break; + } + + start = i; + + if (argc - start != 1) + usage(reflog_exists_usage); + + if (check_refname_format(argv[start], REFNAME_ALLOW_ONELEVEL)) + die("invalid ref format: %s", argv[start]); + return !reflog_exists(argv[start]); +} + /* * main "reflog" */ static const char reflog_usage[] = -"git reflog [ show | expire | delete ]"; +"git reflog [ show | expire | delete | exists ]"; int cmd_reflog(int argc, const char **argv, const char *prefix) { @@ -777,5 +743,8 @@ int cmd_reflog(int argc, const char **argv, const char *prefix) if (!strcmp(argv[1], "delete")) return cmd_reflog_delete(argc - 1, argv + 1, prefix); + if (!strcmp(argv[1], "exists")) + return cmd_reflog_exists(argc - 1, argv + 1, prefix); + return cmd_log_reflog(argc, argv, prefix); } diff --git a/builtin/remote-ext.c b/builtin/remote-ext.c index 692c834d9d..88eb8f9013 100644 --- a/builtin/remote-ext.c +++ b/builtin/remote-ext.c @@ -1,6 +1,7 @@ #include "builtin.h" #include "transport.h" #include "run-command.h" +#include "pkt-line.h" /* * URL syntax: @@ -30,16 +31,14 @@ static char *strip_escapes(const char *str, const char *service, size_t rpos = 0; int escape = 0; char special = 0; - size_t psoff = 0; + const char *service_noprefix = service; struct strbuf ret = STRBUF_INIT; - /* Calculate prefix length for \s and lengths for \s and \S */ - if (!strncmp(service, "git-", 4)) - psoff = 4; + skip_prefix(service_noprefix, "git-", &service_noprefix); /* Pass the service to command. */ setenv("GIT_EXT_SERVICE", service, 1); - setenv("GIT_EXT_SERVICE_NOPREFIX", service + psoff, 1); + setenv("GIT_EXT_SERVICE_NOPREFIX", service_noprefix, 1); /* Scan the length of argument. */ while (str[rpos] && (escape || str[rpos] != ' ')) { @@ -85,7 +84,7 @@ static char *strip_escapes(const char *str, const char *service, strbuf_addch(&ret, str[rpos]); break; case 's': - strbuf_addstr(&ret, service + psoff); + strbuf_addstr(&ret, service_noprefix); break; case 'S': strbuf_addstr(&ret, service); @@ -115,77 +114,35 @@ static char *strip_escapes(const char *str, const char *service, } } -/* Should be enough... */ -#define MAXARGUMENTS 256 - -static const char **parse_argv(const char *arg, const char *service) +static void parse_argv(struct argv_array *out, const char *arg, const char *service) { - int arguments = 0; - int i; - const char **ret; - char *temparray[MAXARGUMENTS + 1]; - while (*arg) { - char *expanded; - if (arguments == MAXARGUMENTS) - die("remote-ext command has too many arguments"); - expanded = strip_escapes(arg, service, &arg); + char *expanded = strip_escapes(arg, service, &arg); if (expanded) - temparray[arguments++] = expanded; + argv_array_push(out, expanded); + free(expanded); } - - ret = xmalloc((arguments + 1) * sizeof(char *)); - for (i = 0; i < arguments; i++) - ret[i] = temparray[i]; - ret[arguments] = NULL; - return ret; } static void send_git_request(int stdin_fd, const char *serv, const char *repo, const char *vhost) { - size_t bufferspace; - size_t wpos = 0; - char *buffer; - - /* - * Request needs 12 bytes extra if there is vhost (xxxx \0host=\0) and - * 6 bytes extra (xxxx \0) if there is no vhost. - */ - if (vhost) - bufferspace = strlen(serv) + strlen(repo) + strlen(vhost) + 12; + if (!vhost) + packet_write(stdin_fd, "%s %s%c", serv, repo, 0); else - bufferspace = strlen(serv) + strlen(repo) + 6; - - if (bufferspace > 0xFFFF) - die("Request too large to send"); - buffer = xmalloc(bufferspace); - - /* Make the packet. */ - wpos = sprintf(buffer, "%04x%s %s%c", (unsigned)bufferspace, - serv, repo, 0); - - /* Add vhost if any. */ - if (vhost) - sprintf(buffer + wpos, "host=%s%c", vhost, 0); - - /* Send the request */ - if (write_in_full(stdin_fd, buffer, bufferspace) < 0) - die_errno("Failed to send request"); - - free(buffer); + packet_write(stdin_fd, "%s %s%chost=%s%c", serv, repo, 0, + vhost, 0); } static int run_child(const char *arg, const char *service) { int r; - struct child_process child; + struct child_process child = CHILD_PROCESS_INIT; - memset(&child, 0, sizeof(child)); child.in = -1; child.out = -1; child.err = 0; - child.argv = parse_argv(arg, service); + parse_argv(&child.args, arg, service); if (start_command(&child) < 0) die("Can't run specified command"); @@ -211,7 +168,7 @@ static int command_loop(const char *child) size_t i; if (!fgets(buffer, MAXCOMMAND - 1, stdin)) { if (ferror(stdin)) - die("Comammand input error"); + die("Command input error"); exit(0); } /* Strip end of line characters. */ diff --git a/builtin/remote.c b/builtin/remote.c index 583eec90e0..d33766be39 100644 --- a/builtin/remote.c +++ b/builtin/remote.c @@ -6,68 +6,75 @@ #include "strbuf.h" #include "run-command.h" #include "refs.h" +#include "argv-array.h" static const char * const builtin_remote_usage[] = { - "git remote [-v | --verbose]", - "git remote add [-t <branch>] [-m <master>] [-f] [--mirror=<fetch|push>] <name> <url>", - "git remote rename <old> <new>", - "git remote rm <name>", - "git remote set-head <name> (-a | -d | <branch>)", - "git remote [-v | --verbose] show [-n] <name>", - "git remote prune [-n | --dry-run] <name>", - "git remote [-v | --verbose] update [-p | --prune] [(<group> | <remote>)...]", - "git remote set-branches <name> [--add] <branch>...", - "git remote set-url <name> <newurl> [<oldurl>]", - "git remote set-url --add <name> <newurl>", - "git remote set-url --delete <name> <url>", + N_("git remote [-v | --verbose]"), + N_("git remote add [-t <branch>] [-m <master>] [-f] [--tags | --no-tags] [--mirror=<fetch|push>] <name> <url>"), + N_("git remote rename <old> <new>"), + N_("git remote remove <name>"), + N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"), + N_("git remote [-v | --verbose] show [-n] <name>"), + N_("git remote prune [-n | --dry-run] <name>"), + N_("git remote [-v | --verbose] update [-p | --prune] [(<group> | <remote>)...]"), + N_("git remote set-branches [--add] <name> <branch>..."), + N_("git remote get-url [--push] [--all] <name>"), + N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"), + N_("git remote set-url --add <name> <newurl>"), + N_("git remote set-url --delete <name> <url>"), NULL }; static const char * const builtin_remote_add_usage[] = { - "git remote add [<options>] <name> <url>", + N_("git remote add [<options>] <name> <url>"), NULL }; static const char * const builtin_remote_rename_usage[] = { - "git remote rename <old> <new>", + N_("git remote rename <old> <new>"), NULL }; static const char * const builtin_remote_rm_usage[] = { - "git remote rm <name>", + N_("git remote remove <name>"), NULL }; static const char * const builtin_remote_sethead_usage[] = { - "git remote set-head <name> (-a | -d | <branch>])", + N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"), NULL }; static const char * const builtin_remote_setbranches_usage[] = { - "git remote set-branches <name> <branch>...", - "git remote set-branches --add <name> <branch>...", + N_("git remote set-branches <name> <branch>..."), + N_("git remote set-branches --add <name> <branch>..."), NULL }; static const char * const builtin_remote_show_usage[] = { - "git remote show [<options>] <name>", + N_("git remote show [<options>] <name>"), NULL }; static const char * const builtin_remote_prune_usage[] = { - "git remote prune [<options>] <name>", + N_("git remote prune [<options>] <name>"), NULL }; static const char * const builtin_remote_update_usage[] = { - "git remote update [<options>] [<group> | <remote>]...", + N_("git remote update [<options>] [<group> | <remote>]..."), + NULL +}; + +static const char * const builtin_remote_geturl_usage[] = { + N_("git remote get-url [--push] [--all] <name>"), NULL }; static const char * const builtin_remote_seturl_usage[] = { - "git remote set-url [--push] <name> <newurl> [<oldurl>]", - "git remote set-url --add <name> <newurl>", - "git remote set-url --delete <name> <url>", + N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"), + N_("git remote set-url --add <name> <newurl>"), + N_("git remote set-url --delete <name> <url>"), NULL }; @@ -77,17 +84,6 @@ static const char * const builtin_remote_seturl_usage[] = { static int verbose; -static int show_all(void); -static int prune_remote(const char *remote, int dry_run); - -static inline int postfixcmp(const char *string, const char *postfix) -{ - int len1 = strlen(string), len2 = strlen(postfix); - if (len1 < len2) - return 1; - return strcmp(string + len1 - len2, postfix); -} - static int fetch_remote(const char *name) { const char *argv[] = { "fetch", name, NULL, NULL }; @@ -95,9 +91,9 @@ static int fetch_remote(const char *name) argv[1] = "-v"; argv[2] = name; } - printf("Updating %s\n", name); + printf_ln(_("Updating %s"), name); if (run_command_v_opt(argv, RUN_GIT_CMD)) - return error("Could not fetch %s", name); + return error(_("Could not fetch %s"), name); return 0; } @@ -112,8 +108,8 @@ enum { #define MIRROR_PUSH 2 #define MIRROR_BOTH (MIRROR_FETCH|MIRROR_PUSH) -static int add_branch(const char *key, const char *branchname, - const char *remotename, int mirror, struct strbuf *tmp) +static void add_branch(const char *key, const char *branchname, + const char *remotename, int mirror, struct strbuf *tmp) { strbuf_reset(tmp); strbuf_addch(tmp, '+'); @@ -123,12 +119,12 @@ static int add_branch(const char *key, const char *branchname, else strbuf_addf(tmp, "refs/heads/%s:refs/remotes/%s/%s", branchname, remotename, branchname); - return git_config_set_multivar(key, tmp->buf, "^$", 0); + git_config_set_multivar(key, tmp->buf, "^$", 0); } static const char mirror_advice[] = -"--mirror is dangerous and deprecated; please\n" -"\t use --mirror=fetch or --mirror=push instead"; +N_("--mirror is dangerous and deprecated; please\n" + "\t use --mirror=fetch or --mirror=push instead"); static int parse_mirror_opt(const struct option *opt, const char *arg, int not) { @@ -136,7 +132,7 @@ static int parse_mirror_opt(const struct option *opt, const char *arg, int not) if (not) *mirror = MIRROR_NONE; else if (!arg) { - warning("%s", mirror_advice); + warning("%s", _(mirror_advice)); *mirror = MIRROR_BOTH; } else if (!strcmp(arg, "fetch")) @@ -144,7 +140,7 @@ static int parse_mirror_opt(const struct option *opt, const char *arg, int not) else if (!strcmp(arg, "push")) *mirror = MIRROR_PUSH; else - return error("unknown mirror argument: %s", arg); + return error(_("unknown mirror argument: %s"), arg); return 0; } @@ -160,17 +156,17 @@ static int add(int argc, const char **argv) int i; struct option options[] = { - OPT_BOOLEAN('f', "fetch", &fetch, "fetch the remote branches"), + OPT_BOOL('f', "fetch", &fetch, N_("fetch the remote branches")), OPT_SET_INT(0, "tags", &fetch_tags, - "import all tags and associated objects when fetching", + N_("import all tags and associated objects when fetching"), TAGS_SET), OPT_SET_INT(0, NULL, &fetch_tags, - "or do not fetch any tag at all (--no-tags)", TAGS_UNSET), - OPT_STRING_LIST('t', "track", &track, "branch", - "branch(es) to track"), - OPT_STRING('m', "master", &master, "branch", "master branch"), - { OPTION_CALLBACK, 0, "mirror", &mirror, "push|fetch", - "set up remote as a mirror to push to or fetch from", + N_("or do not fetch any tag at all (--no-tags)"), TAGS_UNSET), + OPT_STRING_LIST('t', "track", &track, N_("branch"), + N_("branch(es) to track")), + OPT_STRING('m', "master", &master, N_("branch"), N_("master branch")), + { OPTION_CALLBACK, 0, "mirror", &mirror, N_("push|fetch"), + N_("set up remote as a mirror to push to or fetch from"), PARSE_OPT_OPTARG, parse_mirror_opt }, OPT_END() }; @@ -178,29 +174,27 @@ static int add(int argc, const char **argv) argc = parse_options(argc, argv, NULL, options, builtin_remote_add_usage, 0); - if (argc < 2) + if (argc != 2) usage_with_options(builtin_remote_add_usage, options); if (mirror && master) - die("specifying a master branch makes no sense with --mirror"); + die(_("specifying a master branch makes no sense with --mirror")); if (mirror && !(mirror & MIRROR_FETCH) && track.nr) - die("specifying branches to track makes sense only with fetch mirrors"); + die(_("specifying branches to track makes sense only with fetch mirrors")); name = argv[0]; url = argv[1]; remote = remote_get(name); - if (remote && (remote->url_nr > 1 || strcmp(name, remote->url[0]) || - remote->fetch_refspec_nr)) - die("remote %s already exists.", name); + if (remote_is_configured(remote)) + die(_("remote %s already exists."), name); strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name); if (!valid_fetch_refspec(buf2.buf)) - die("'%s' is not a valid remote name", name); + die(_("'%s' is not a valid remote name"), name); strbuf_addf(&buf, "remote.%s.url", name); - if (git_config_set(buf.buf, url)) - return 1; + git_config_set(buf.buf, url); if (!mirror || mirror & MIRROR_FETCH) { strbuf_reset(&buf); @@ -208,25 +202,22 @@ static int add(int argc, const char **argv) if (track.nr == 0) string_list_append(&track, "*"); for (i = 0; i < track.nr; i++) { - if (add_branch(buf.buf, track.items[i].string, - name, mirror, &buf2)) - return 1; + add_branch(buf.buf, track.items[i].string, + name, mirror, &buf2); } } if (mirror & MIRROR_PUSH) { strbuf_reset(&buf); strbuf_addf(&buf, "remote.%s.mirror", name); - if (git_config_set(buf.buf, "true")) - return 1; + git_config_set(buf.buf, "true"); } if (fetch_tags != TAGS_DEFAULT) { strbuf_reset(&buf); strbuf_addf(&buf, "remote.%s.tagopt", name); - if (git_config_set(buf.buf, - fetch_tags == TAGS_SET ? "--tags" : "--no-tags")) - return 1; + git_config_set(buf.buf, + fetch_tags == TAGS_SET ? "--tags" : "--no-tags"); } if (fetch && fetch_remote(name)) @@ -240,7 +231,7 @@ static int add(int argc, const char **argv) strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master); if (create_symref(buf.buf, buf2.buf, "remote add")) - return error("Could not setup master '%s'", master); + return error(_("Could not setup master '%s'"), master); } strbuf_release(&buf); @@ -253,38 +244,37 @@ static int add(int argc, const char **argv) struct branch_info { char *remote_name; struct string_list merge; - int rebase; + enum { NO_REBASE, NORMAL_REBASE, INTERACTIVE_REBASE } rebase; }; static struct string_list branch_list; static const char *abbrev_ref(const char *name, const char *prefix) { - const char *abbrev = skip_prefix(name, prefix); - if (abbrev) - return abbrev; + skip_prefix(name, prefix, &name); return name; } #define abbrev_branch(name) abbrev_ref((name), "refs/heads/") static int config_read_branches(const char *key, const char *value, void *cb) { - if (!prefixcmp(key, "branch.")) { + if (starts_with(key, "branch.")) { const char *orig_key = key; char *name; struct string_list_item *item; struct branch_info *info; enum { REMOTE, MERGE, REBASE } type; + size_t key_len; key += 7; - if (!postfixcmp(key, ".remote")) { - name = xstrndup(key, strlen(key) - 7); + if (strip_suffix(key, ".remote", &key_len)) { + name = xmemdupz(key, key_len); type = REMOTE; - } else if (!postfixcmp(key, ".merge")) { - name = xstrndup(key, strlen(key) - 6); + } else if (strip_suffix(key, ".merge", &key_len)) { + name = xmemdupz(key, key_len); type = MERGE; - } else if (!postfixcmp(key, ".rebase")) { - name = xstrndup(key, strlen(key) - 7); + } else if (strip_suffix(key, ".rebase", &key_len)) { + name = xmemdupz(key, key_len); type = REBASE; } else return 0; @@ -292,11 +282,11 @@ static int config_read_branches(const char *key, const char *value, void *cb) item = string_list_insert(&branch_list, name); if (!item->util) - item->util = xcalloc(sizeof(struct branch_info), 1); + item->util = xcalloc(1, sizeof(struct branch_info)); info = item->util; if (type == REMOTE) { if (info->remote_name) - warning("more than one %s", orig_key); + warning(_("more than one %s"), orig_key); info->remote_name = xstrdup(value); } else if (type == MERGE) { char *space = strchr(value, ' '); @@ -309,8 +299,15 @@ static int config_read_branches(const char *key, const char *value, void *cb) space = strchr(value, ' '); } string_list_append(&info->merge, xstrdup(value)); - } else - info->rebase = git_config_bool(orig_key, value); + } else { + int v = git_config_maybe_bool(orig_key, value); + if (v >= 0) + info->rebase = v; + else if (!strcmp(value, "preserve")) + info->rebase = NORMAL_REBASE; + else if (!strcmp(value, "interactive")) + info->rebase = INTERACTIVE_REBASE; + } } return 0; } @@ -336,7 +333,7 @@ static int get_ref_states(const struct ref *remote_refs, struct ref_states *stat for (i = 0; i < states->remote->fetch_refspec_nr; i++) if (get_fetch_map(remote_refs, states->remote->fetch + i, &tail, 1)) - die("Could not get fetch map for refspec %s", + die(_("Could not get fetch map for refspec %s"), states->remote->fetch_refspec[i]); states->new.strdup_strings = 1; @@ -358,9 +355,9 @@ static int get_ref_states(const struct ref *remote_refs, struct ref_states *stat free_refs(stale_refs); free_refs(fetch_map); - sort_string_list(&states->new); - sort_string_list(&states->tracked); - sort_string_list(&states->stale); + string_list_sort(&states->new); + string_list_sort(&states->tracked); + string_list_sort(&states->stale); return 0; } @@ -399,23 +396,23 @@ static int get_push_ref_states(const struct ref *remote_refs, if (!ref->peer_ref) continue; - hashcpy(ref->new_sha1, ref->peer_ref->new_sha1); + oidcpy(&ref->new_oid, &ref->peer_ref->new_oid); item = string_list_append(&states->push, abbrev_branch(ref->peer_ref->name)); - item->util = xcalloc(sizeof(struct push_info), 1); + item->util = xcalloc(1, sizeof(struct push_info)); info = item->util; info->forced = ref->force; info->dest = xstrdup(abbrev_branch(ref->name)); - if (is_null_sha1(ref->new_sha1)) { + if (is_null_oid(&ref->new_oid)) { info->status = PUSH_STATUS_DELETE; - } else if (!hashcmp(ref->old_sha1, ref->new_sha1)) + } else if (!oidcmp(&ref->old_oid, &ref->new_oid)) info->status = PUSH_STATUS_UPTODATE; - else if (is_null_sha1(ref->old_sha1)) + else if (is_null_oid(&ref->old_oid)) info->status = PUSH_STATUS_CREATE; - else if (has_sha1_file(ref->old_sha1) && - ref_newer(ref->new_sha1, ref->old_sha1)) + else if (has_object_file(&ref->old_oid) && + ref_newer(&ref->new_oid, &ref->old_oid)) info->status = PUSH_STATUS_FASTFORWARD; else info->status = PUSH_STATUS_OUTOFDATE; @@ -437,21 +434,21 @@ static int get_push_ref_states_noquery(struct ref_states *states) states->push.strdup_strings = 1; if (!remote->push_refspec_nr) { - item = string_list_append(&states->push, "(matching)"); - info = item->util = xcalloc(sizeof(struct push_info), 1); + item = string_list_append(&states->push, _("(matching)")); + info = item->util = xcalloc(1, sizeof(struct push_info)); info->status = PUSH_STATUS_NOTQUERIED; info->dest = xstrdup(item->string); } for (i = 0; i < remote->push_refspec_nr; i++) { struct refspec *spec = remote->push + i; if (spec->matching) - item = string_list_append(&states->push, "(matching)"); + item = string_list_append(&states->push, _("(matching)")); else if (strlen(spec->src)) item = string_list_append(&states->push, spec->src); else - item = string_list_append(&states->push, "(delete)"); + item = string_list_append(&states->push, _("(delete)")); - info = item->util = xcalloc(sizeof(struct push_info), 1); + info = item->util = xcalloc(1, sizeof(struct push_info)); info->forced = spec->force; info->status = PUSH_STATUS_NOTQUERIED; info->dest = xstrdup(spec->dst ? spec->dst : item->string); @@ -513,11 +510,10 @@ struct branches_for_remote { }; static int add_branch_for_removal(const char *refname, - const unsigned char *sha1, int flags, void *cb_data) + const struct object_id *oid, int flags, void *cb_data) { struct branches_for_remote *branches = cb_data; struct refspec refspec; - struct string_list_item *item; struct known_remote *kr; memset(&refspec, 0, sizeof(refspec)); @@ -534,9 +530,9 @@ static int add_branch_for_removal(const char *refname, } /* don't delete non-remote-tracking refs */ - if (prefixcmp(refname, "refs/remotes")) { + if (!starts_with(refname, "refs/remotes/")) { /* advise user how to delete local branches */ - if (!prefixcmp(refname, "refs/heads/")) + if (starts_with(refname, "refs/heads/")) string_list_append(branches->skipped, abbrev_branch(refname)); /* silently skip over other non-remote refs */ @@ -547,9 +543,7 @@ static int add_branch_for_removal(const char *refname, if (flags & REF_ISSYMREF) return unlink(git_path("%s", refname)); - item = string_list_append(branches->branches, refname); - item->util = xmalloc(20); - hashcpy(item->util, sha1); + string_list_append(branches->branches, refname); return 0; } @@ -561,19 +555,20 @@ struct rename_info { }; static int read_remote_branches(const char *refname, - const unsigned char *sha1, int flags, void *cb_data) + const struct object_id *oid, int flags, void *cb_data) { struct rename_info *rename = cb_data; struct strbuf buf = STRBUF_INIT; struct string_list_item *item; int flag; - unsigned char orig_sha1[20]; + struct object_id orig_oid; const char *symref; strbuf_addf(&buf, "refs/remotes/%s/", rename->old); - if (!prefixcmp(refname, buf.buf)) { + if (starts_with(refname, buf.buf)) { item = string_list_append(rename->remote_branches, xstrdup(refname)); - symref = resolve_ref_unsafe(refname, orig_sha1, 1, &flag); + symref = resolve_ref_unsafe(refname, RESOLVE_REF_READING, + orig_oid.hash, &flag); if (flag & REF_ISSYMREF) item->util = xstrdup(symref); else @@ -587,31 +582,23 @@ static int migrate_file(struct remote *remote) { struct strbuf buf = STRBUF_INIT; int i; - char *path = NULL; strbuf_addf(&buf, "remote.%s.url", remote->name); for (i = 0; i < remote->url_nr; i++) - if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0)) - return error("Could not append '%s' to '%s'", - remote->url[i], buf.buf); + git_config_set_multivar(buf.buf, remote->url[i], "^$", 0); strbuf_reset(&buf); strbuf_addf(&buf, "remote.%s.push", remote->name); for (i = 0; i < remote->push_refspec_nr; i++) - if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0)) - return error("Could not append '%s' to '%s'", - remote->push_refspec[i], buf.buf); + git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0); strbuf_reset(&buf); strbuf_addf(&buf, "remote.%s.fetch", remote->name); for (i = 0; i < remote->fetch_refspec_nr; i++) - if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0)) - return error("Could not append '%s' to '%s'", - remote->fetch_refspec[i], buf.buf); + git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0); if (remote->origin == REMOTE_REMOTES) - path = git_path("remotes/%s", remote->name); + unlink_or_warn(git_path("remotes/%s", remote->name)); else if (remote->origin == REMOTE_BRANCHES) - path = git_path("branches/%s", remote->name); - if (path) - unlink_or_warn(path); + unlink_or_warn(git_path("branches/%s", remote->name)); + return 0; } @@ -635,31 +622,30 @@ static int mv(int argc, const char **argv) rename.remote_branches = &remote_branches; oldremote = remote_get(rename.old); - if (!oldremote) - die("No such remote: %s", rename.old); + if (!remote_is_configured(oldremote)) + die(_("No such remote: %s"), rename.old); if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG) return migrate_file(oldremote); newremote = remote_get(rename.new); - if (newremote && (newremote->url_nr > 1 || newremote->fetch_refspec_nr)) - die("remote %s already exists.", rename.new); + if (remote_is_configured(newremote)) + die(_("remote %s already exists."), rename.new); strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new); if (!valid_fetch_refspec(buf.buf)) - die("'%s' is not a valid remote name", rename.new); + die(_("'%s' is not a valid remote name"), rename.new); strbuf_reset(&buf); strbuf_addf(&buf, "remote.%s", rename.old); strbuf_addf(&buf2, "remote.%s", rename.new); if (git_config_rename_section(buf.buf, buf2.buf) < 1) - return error("Could not rename config section '%s' to '%s'", + return error(_("Could not rename config section '%s' to '%s'"), buf.buf, buf2.buf); strbuf_reset(&buf); strbuf_addf(&buf, "remote.%s.fetch", rename.new); - if (git_config_set_multivar(buf.buf, NULL, NULL, 1)) - return error("Could not remove config section '%s'", buf.buf); + git_config_set_multivar(buf.buf, NULL, NULL, 1); strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old); for (i = 0; i < oldremote->fetch_refspec_nr; i++) { char *ptr; @@ -674,13 +660,12 @@ static int mv(int argc, const char **argv) strlen(rename.old), rename.new, strlen(rename.new)); } else - warning("Not updating non-default fetch respec\n" - "\t%s\n" - "\tPlease update the configuration manually if necessary.", + warning(_("Not updating non-default fetch refspec\n" + "\t%s\n" + "\tPlease update the configuration manually if necessary."), buf2.buf); - if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0)) - return error("Could not append '%s'", buf.buf); + git_config_set_multivar(buf.buf, buf2.buf, "^$", 0); } read_branches(); @@ -690,9 +675,7 @@ static int mv(int argc, const char **argv) if (info->remote_name && !strcmp(info->remote_name, rename.old)) { strbuf_reset(&buf); strbuf_addf(&buf, "branch.%s.remote", item->string); - if (git_config_set(buf.buf, rename.new)) { - return error("Could not set '%s'", buf.buf); - } + git_config_set(buf.buf, rename.new); } } @@ -707,13 +690,13 @@ static int mv(int argc, const char **argv) for (i = 0; i < remote_branches.nr; i++) { struct string_list_item *item = remote_branches.items + i; int flag = 0; - unsigned char sha1[20]; + struct object_id oid; - read_ref_full(item->string, sha1, 1, &flag); + read_ref_full(item->string, RESOLVE_REF_READING, oid.hash, &flag); if (!(flag & REF_ISSYMREF)) continue; if (delete_ref(item->string, NULL, REF_NODEREF)) - die("deleting '%s' failed", item->string); + die(_("deleting '%s' failed"), item->string); } for (i = 0; i < remote_branches.nr; i++) { struct string_list_item *item = remote_branches.items + i; @@ -728,7 +711,7 @@ static int mv(int argc, const char **argv) strbuf_addf(&buf2, "remote: renamed %s to %s", item->string, buf.buf); if (rename_ref(item->string, buf.buf, buf2.buf)) - die("renaming '%s' failed", item->string); + die(_("renaming '%s' failed"), item->string); } for (i = 0; i < remote_branches.nr; i++) { struct string_list_item *item = remote_branches.items + i; @@ -747,25 +730,11 @@ static int mv(int argc, const char **argv) strbuf_addf(&buf3, "remote: renamed %s to %s", item->string, buf.buf); if (create_symref(buf.buf, buf2.buf, buf3.buf)) - die("creating '%s' failed", buf.buf); + die(_("creating '%s' failed"), buf.buf); } return 0; } -static int remove_branches(struct string_list *branches) -{ - int i, result = 0; - for (i = 0; i < branches->nr; i++) { - struct string_list_item *item = branches->items + i; - const char *refname = item->string; - unsigned char *sha1 = item->util; - - if (delete_ref(refname, sha1, 0)) - result |= error("Could not remove branch %s", refname); - } - return result; -} - static int rm(int argc, const char **argv) { struct option options[] = { @@ -788,16 +757,12 @@ static int rm(int argc, const char **argv) usage_with_options(builtin_remote_rm_usage, options); remote = remote_get(argv[1]); - if (!remote) - die("No such remote: %s", argv[1]); + if (!remote_is_configured(remote)) + die(_("No such remote: %s"), argv[1]); known_remotes.to_delete = remote; for_each_remote(add_known_remote, &known_remotes); - strbuf_addf(&buf, "remote.%s", remote->name); - if (git_config_rename_section(buf.buf, NULL) < 1) - return error("Could not remove config section '%s'", buf.buf); - read_branches(); for (i = 0; i < branch_list.nr; i++) { struct string_list_item *item = branch_list.items + i; @@ -808,10 +773,7 @@ static int rm(int argc, const char **argv) strbuf_reset(&buf); strbuf_addf(&buf, "branch.%s.%s", item->string, *k); - if (git_config_set(buf.buf, NULL)) { - strbuf_release(&buf); - return -1; - } + git_config_set(buf.buf, NULL); } } } @@ -826,21 +788,28 @@ static int rm(int argc, const char **argv) strbuf_release(&buf); if (!result) - result = remove_branches(&branches); - string_list_clear(&branches, 1); + result = delete_refs(&branches); + string_list_clear(&branches, 0); if (skipped.nr) { - fprintf(stderr, skipped.nr == 1 ? - "Note: A branch outside the refs/remotes/ hierarchy was not removed;\n" - "to delete it, use:\n" : - "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n" - "to delete them, use:\n"); + fprintf_ln(stderr, + Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n" + "to delete it, use:", + "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n" + "to delete them, use:", + skipped.nr)); for (i = 0; i < skipped.nr; i++) fprintf(stderr, " git branch -d %s\n", skipped.items[i].string); } string_list_clear(&skipped, 0); + if (!result) { + strbuf_addf(&buf, "remote.%s", remote->name); + if (git_config_rename_section(buf.buf, NULL) < 1) + return error(_("Could not remove config section '%s'"), buf.buf); + } + return result; } @@ -861,7 +830,7 @@ static void free_remote_ref_states(struct ref_states *states) } static int append_ref_to_tracked_list(const char *refname, - const unsigned char *sha1, int flags, void *cb_data) + const struct object_id *oid, int flags, void *cb_data) { struct ref_states *states = cb_data; struct refspec refspec; @@ -886,7 +855,7 @@ static int get_remote_ref_states(const char *name, states->remote = remote_get(name); if (!states->remote) - return error("No such remote: %s", name); + return error(_("No such remote: %s"), name); read_branches(); @@ -905,7 +874,7 @@ static int get_remote_ref_states(const char *name, get_push_ref_states(remote_refs, states); } else { for_each_ref(append_ref_to_tracked_list, states); - sort_string_list(&states->tracked); + string_list_sort(&states->tracked); get_push_ref_states_noquery(states); } @@ -939,14 +908,14 @@ static int show_remote_info_item(struct string_list_item *item, void *cb_data) const char *fmt = "%s"; const char *arg = ""; if (string_list_has_string(&states->new, name)) { - fmt = " new (next fetch will store in remotes/%s)"; + fmt = _(" new (next fetch will store in remotes/%s)"); arg = states->remote->name; } else if (string_list_has_string(&states->tracked, name)) - arg = " tracked"; + arg = _(" tracked"); else if (string_list_has_string(&states->stale, name)) - arg = " stale (use 'git remote prune' to remove)"; + arg = _(" stale (use 'git remote prune' to remove)"); else - arg = " ???"; + arg = _(" ???"); printf(" %-*s", info->width, name); printf(fmt, arg); printf("\n"); @@ -987,21 +956,23 @@ static int show_local_info_item(struct string_list_item *item, void *cb_data) int i; if (branch_info->rebase && branch_info->merge.nr > 1) { - error("invalid branch.%s.merge; cannot rebase onto > 1 branch", + error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"), item->string); return 0; } printf(" %-*s ", show_info->width, item->string); if (branch_info->rebase) { - printf("rebases onto remote %s\n", merge->items[0].string); + printf_ln(_(branch_info->rebase == INTERACTIVE_REBASE ? + "rebases interactively onto remote %s" : + "rebases onto remote %s"), merge->items[0].string); return 0; } else if (show_info->any_rebase) { - printf(" merges with remote %s\n", merge->items[0].string); - also = " and with remote"; + printf_ln(_(" merges with remote %s"), merge->items[0].string); + also = _(" and with remote"); } else { - printf("merges with remote %s\n", merge->items[0].string); - also = " and with remote"; + printf_ln(_("merges with remote %s"), merge->items[0].string); + also = _(" and with remote"); } for (i = 1; i < merge->nr; i++) printf(" %-*s %s %s\n", show_info->width, "", also, @@ -1043,44 +1014,109 @@ static int show_push_info_item(struct string_list_item *item, void *cb_data) { struct show_info *show_info = cb_data; struct push_info *push_info = item->util; - char *src = item->string, *status = NULL; + const char *src = item->string, *status = NULL; switch (push_info->status) { case PUSH_STATUS_CREATE: - status = "create"; + status = _("create"); break; case PUSH_STATUS_DELETE: - status = "delete"; - src = "(none)"; + status = _("delete"); + src = _("(none)"); break; case PUSH_STATUS_UPTODATE: - status = "up to date"; + status = _("up to date"); break; case PUSH_STATUS_FASTFORWARD: - status = "fast-forwardable"; + status = _("fast-forwardable"); break; case PUSH_STATUS_OUTOFDATE: - status = "local out of date"; + status = _("local out of date"); break; case PUSH_STATUS_NOTQUERIED: break; } - if (status) - printf(" %-*s %s to %-*s (%s)\n", show_info->width, src, - push_info->forced ? "forces" : "pushes", - show_info->width2, push_info->dest, status); - else - printf(" %-*s %s to %s\n", show_info->width, src, - push_info->forced ? "forces" : "pushes", - push_info->dest); + if (status) { + if (push_info->forced) + printf_ln(_(" %-*s forces to %-*s (%s)"), show_info->width, src, + show_info->width2, push_info->dest, status); + else + printf_ln(_(" %-*s pushes to %-*s (%s)"), show_info->width, src, + show_info->width2, push_info->dest, status); + } else { + if (push_info->forced) + printf_ln(_(" %-*s forces to %s"), show_info->width, src, + push_info->dest); + else + printf_ln(_(" %-*s pushes to %s"), show_info->width, src, + push_info->dest); + } return 0; } +static int get_one_entry(struct remote *remote, void *priv) +{ + struct string_list *list = priv; + struct strbuf url_buf = STRBUF_INIT; + const char **url; + int i, url_nr; + + if (remote->url_nr > 0) { + strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]); + string_list_append(list, remote->name)->util = + strbuf_detach(&url_buf, NULL); + } else + string_list_append(list, remote->name)->util = NULL; + if (remote->pushurl_nr) { + url = remote->pushurl; + url_nr = remote->pushurl_nr; + } else { + url = remote->url; + url_nr = remote->url_nr; + } + for (i = 0; i < url_nr; i++) + { + strbuf_addf(&url_buf, "%s (push)", url[i]); + string_list_append(list, remote->name)->util = + strbuf_detach(&url_buf, NULL); + } + + return 0; +} + +static int show_all(void) +{ + struct string_list list = STRING_LIST_INIT_NODUP; + int result; + + list.strdup_strings = 1; + result = for_each_remote(get_one_entry, &list); + + if (!result) { + int i; + + string_list_sort(&list); + for (i = 0; i < list.nr; i++) { + struct string_list_item *item = list.items + i; + if (verbose) + printf("%s\t%s\n", item->string, + item->util ? (const char *)item->util : ""); + else { + if (i && !strcmp((item - 1)->string, item->string)) + continue; + printf("%s\n", item->string); + } + } + } + string_list_clear(&list, 1); + return result; +} + static int show(int argc, const char **argv) { int no_query = 0, result = 0, query_flag = 0; struct option options[] = { - OPT_BOOLEAN('n', NULL, &no_query, "do not query remotes"), + OPT_BOOL('n', NULL, &no_query, N_("do not query remotes")), OPT_END() }; struct ref_states states; @@ -1107,9 +1143,9 @@ static int show(int argc, const char **argv) get_remote_ref_states(*argv, &states, query_flag); - printf("* remote %s\n", *argv); - printf(" Fetch URL: %s\n", states.remote->url_nr > 0 ? - states.remote->url[0] : "(no URL)"); + printf_ln(_("* remote %s"), *argv); + printf_ln(_(" Fetch URL: %s"), states.remote->url_nr > 0 ? + states.remote->url[0] : _("(no URL)")); if (states.remote->pushurl_nr) { url = states.remote->pushurl; url_nr = states.remote->pushurl_nr; @@ -1118,18 +1154,20 @@ static int show(int argc, const char **argv) url_nr = states.remote->url_nr; } for (i = 0; i < url_nr; i++) - printf(" Push URL: %s\n", url[i]); + /* TRANSLATORS: the colon ':' should align with + the one in " Fetch URL: %s" translation */ + printf_ln(_(" Push URL: %s"), url[i]); if (!i) - printf(" Push URL: %s\n", "(no URL)"); + printf_ln(_(" Push URL: %s"), "(no URL)"); if (no_query) - printf(" HEAD branch: (not queried)\n"); + printf_ln(_(" HEAD branch: %s"), "(not queried)"); else if (!states.heads.nr) - printf(" HEAD branch: (unknown)\n"); + printf_ln(_(" HEAD branch: %s"), "(unknown)"); else if (states.heads.nr == 1) - printf(" HEAD branch: %s\n", states.heads.items[0].string); + printf_ln(_(" HEAD branch: %s"), states.heads.items[0].string); else { - printf(" HEAD branch (remote HEAD is ambiguous," - " may be one of the following):\n"); + printf(_(" HEAD branch (remote HEAD is ambiguous," + " may be one of the following):\n")); for (i = 0; i < states.heads.nr; i++) printf(" %s\n", states.heads.items[i].string); } @@ -1140,9 +1178,10 @@ static int show(int argc, const char **argv) for_each_string_list(&states.tracked, add_remote_to_show_info, &info); for_each_string_list(&states.stale, add_remote_to_show_info, &info); if (info.list->nr) - printf(" Remote branch%s:%s\n", - info.list->nr > 1 ? "es" : "", - no_query ? " (status not queried)" : ""); + printf_ln(Q_(" Remote branch:%s", + " Remote branches:%s", + info.list->nr), + no_query ? _(" (status not queried)") : ""); for_each_string_list(info.list, show_remote_info_item, &info); string_list_clear(info.list, 0); @@ -1151,23 +1190,25 @@ static int show(int argc, const char **argv) info.any_rebase = 0; for_each_string_list(&branch_list, add_local_to_show_info, &info); if (info.list->nr) - printf(" Local branch%s configured for 'git pull':\n", - info.list->nr > 1 ? "es" : ""); + printf_ln(Q_(" Local branch configured for 'git pull':", + " Local branches configured for 'git pull':", + info.list->nr)); for_each_string_list(info.list, show_local_info_item, &info); string_list_clear(info.list, 0); /* git push info */ if (states.remote->mirror) - printf(" Local refs will be mirrored by 'git push'\n"); + printf_ln(_(" Local refs will be mirrored by 'git push'")); info.width = info.width2 = 0; for_each_string_list(&states.push, add_push_to_show_info, &info); qsort(info.list->items, info.list->nr, sizeof(*info.list->items), cmp_string_with_push); if (info.list->nr) - printf(" Local ref%s configured for 'git push'%s:\n", - info.list->nr > 1 ? "s" : "", - no_query ? " (status not queried)" : ""); + printf_ln(Q_(" Local ref configured for 'git push'%s:", + " Local refs configured for 'git push'%s:", + info.list->nr), + no_query ? _(" (status not queried)") : ""); for_each_string_list(info.list, show_push_info_item, &info); string_list_clear(info.list, 0); @@ -1184,10 +1225,10 @@ static int set_head(int argc, const char **argv) char *head_name = NULL; struct option options[] = { - OPT_BOOLEAN('a', "auto", &opt_a, - "set refs/remotes/<name>/HEAD according to remote"), - OPT_BOOLEAN('d', "delete", &opt_d, - "delete refs/remotes/<name>/HEAD"), + OPT_BOOL('a', "auto", &opt_a, + N_("set refs/remotes/<name>/HEAD according to remote")), + OPT_BOOL('d', "delete", &opt_d, + N_("delete refs/remotes/<name>/HEAD")), OPT_END() }; argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage, @@ -1202,10 +1243,10 @@ static int set_head(int argc, const char **argv) memset(&states, 0, sizeof(states)); get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES); if (!states.heads.nr) - result |= error("Cannot determine remote HEAD"); + result |= error(_("Cannot determine remote HEAD")); else if (states.heads.nr > 1) { - result |= error("Multiple remote HEAD branches. " - "Please choose one explicitly with:"); + result |= error(_("Multiple remote HEAD branches. " + "Please choose one explicitly with:")); for (i = 0; i < states.heads.nr; i++) fprintf(stderr, " git remote set-head %s %s\n", argv[0], states.heads.items[i].string); @@ -1214,7 +1255,7 @@ static int set_head(int argc, const char **argv) free_remote_ref_states(&states); } else if (opt_d && !opt_a && argc == 1) { if (delete_ref(buf.buf, NULL, REF_NODEREF)) - result |= error("Could not delete %s", buf.buf); + result |= error(_("Could not delete %s"), buf.buf); } else usage_with_options(builtin_remote_sethead_usage, options); @@ -1222,9 +1263,9 @@ static int set_head(int argc, const char **argv) strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name); /* make sure it's valid */ if (!ref_exists(buf2.buf)) - result |= error("Not a valid ref: %s", buf2.buf); + result |= error(_("Not a valid ref: %s"), buf2.buf); else if (create_symref(buf.buf, buf2.buf, "remote set-head")) - result |= error("Could not setup %s", buf.buf); + result |= error(_("Could not setup %s"), buf.buf); if (opt_a) printf("%s/HEAD set to %s\n", argv[0], head_name); free(head_name); @@ -1235,11 +1276,60 @@ static int set_head(int argc, const char **argv) return result; } +static int prune_remote(const char *remote, int dry_run) +{ + int result = 0; + struct ref_states states; + struct string_list refs_to_prune = STRING_LIST_INIT_NODUP; + struct string_list_item *item; + const char *dangling_msg = dry_run + ? _(" %s will become dangling!") + : _(" %s has become dangling!"); + + memset(&states, 0, sizeof(states)); + get_remote_ref_states(remote, &states, GET_REF_STATES); + + if (!states.stale.nr) { + free_remote_ref_states(&states); + return 0; + } + + printf_ln(_("Pruning %s"), remote); + printf_ln(_("URL: %s"), + states.remote->url_nr + ? states.remote->url[0] + : _("(no URL)")); + + for_each_string_list_item(item, &states.stale) + string_list_append(&refs_to_prune, item->util); + string_list_sort(&refs_to_prune); + + if (!dry_run) + result |= delete_refs(&refs_to_prune); + + for_each_string_list_item(item, &states.stale) { + const char *refname = item->util; + + if (dry_run) + printf_ln(_(" * [would prune] %s"), + abbrev_ref(refname, "refs/remotes/")); + else + printf_ln(_(" * [pruned] %s"), + abbrev_ref(refname, "refs/remotes/")); + } + + warn_dangling_symrefs(stdout, dangling_msg, &refs_to_prune); + + string_list_clear(&refs_to_prune, 0); + free_remote_ref_states(&states); + return result; +} + static int prune(int argc, const char **argv) { int dry_run = 0, result = 0; struct option options[] = { - OPT__DRY_RUN(&dry_run, "dry run"), + OPT__DRY_RUN(&dry_run, N_("dry run")), OPT_END() }; @@ -1255,40 +1345,6 @@ static int prune(int argc, const char **argv) return result; } -static int prune_remote(const char *remote, int dry_run) -{ - int result = 0, i; - struct ref_states states; - const char *dangling_msg = dry_run - ? " %s will become dangling!\n" - : " %s has become dangling!\n"; - - memset(&states, 0, sizeof(states)); - get_remote_ref_states(remote, &states, GET_REF_STATES); - - if (states.stale.nr) { - printf("Pruning %s\n", remote); - printf("URL: %s\n", - states.remote->url_nr - ? states.remote->url[0] - : "(no URL)"); - } - - for (i = 0; i < states.stale.nr; i++) { - const char *refname = states.stale.items[i].util; - - if (!dry_run) - result |= delete_ref(refname, NULL, 0); - - printf(" * [%s] %s\n", dry_run ? "would prune" : "pruned", - abbrev_ref(refname, "refs/remotes/")); - warn_dangling_symref(stdout, dangling_msg, refname); - } - - free_remote_ref_states(&states); - return result; -} - static int get_remote_default(const char *key, const char *value, void *priv) { if (strcmp(key, "remotes.default") == 0) { @@ -1300,64 +1356,60 @@ static int get_remote_default(const char *key, const char *value, void *priv) static int update(int argc, const char **argv) { - int i, prune = 0; + int i, prune = -1; struct option options[] = { - OPT_BOOLEAN('p', "prune", &prune, - "prune remotes after fetching"), + OPT_BOOL('p', "prune", &prune, + N_("prune remotes after fetching")), OPT_END() }; - const char **fetch_argv; - int fetch_argc = 0; + struct argv_array fetch_argv = ARGV_ARRAY_INIT; int default_defined = 0; - - fetch_argv = xmalloc(sizeof(char *) * (argc+5)); + int retval; argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage, PARSE_OPT_KEEP_ARGV0); - fetch_argv[fetch_argc++] = "fetch"; + argv_array_push(&fetch_argv, "fetch"); - if (prune) - fetch_argv[fetch_argc++] = "--prune"; + if (prune != -1) + argv_array_push(&fetch_argv, prune ? "--prune" : "--no-prune"); if (verbose) - fetch_argv[fetch_argc++] = "-v"; - fetch_argv[fetch_argc++] = "--multiple"; + argv_array_push(&fetch_argv, "-v"); + argv_array_push(&fetch_argv, "--multiple"); if (argc < 2) - fetch_argv[fetch_argc++] = "default"; + argv_array_push(&fetch_argv, "default"); for (i = 1; i < argc; i++) - fetch_argv[fetch_argc++] = argv[i]; + argv_array_push(&fetch_argv, argv[i]); - if (strcmp(fetch_argv[fetch_argc-1], "default") == 0) { + if (strcmp(fetch_argv.argv[fetch_argv.argc-1], "default") == 0) { git_config(get_remote_default, &default_defined); - if (!default_defined) - fetch_argv[fetch_argc-1] = "--all"; + if (!default_defined) { + argv_array_pop(&fetch_argv); + argv_array_push(&fetch_argv, "--all"); + } } - fetch_argv[fetch_argc] = NULL; - - return run_command_v_opt(fetch_argv, RUN_GIT_CMD); + retval = run_command_v_opt(fetch_argv.argv, RUN_GIT_CMD); + argv_array_clear(&fetch_argv); + return retval; } static int remove_all_fetch_refspecs(const char *remote, const char *key) { - return git_config_set_multivar(key, NULL, NULL, 1); + return git_config_set_multivar_gently(key, NULL, NULL, 1); } -static int add_branches(struct remote *remote, const char **branches, - const char *key) +static void add_branches(struct remote *remote, const char **branches, + const char *key) { const char *remotename = remote->name; int mirror = remote->mirror; struct strbuf refspec = STRBUF_INIT; for (; *branches; branches++) - if (add_branch(key, *branches, remotename, mirror, &refspec)) { - strbuf_release(&refspec); - return 1; - } + add_branch(key, *branches, remotename, mirror, &refspec); strbuf_release(&refspec); - return 0; } static int set_remote_branches(const char *remotename, const char **branches, @@ -1368,18 +1420,15 @@ static int set_remote_branches(const char *remotename, const char **branches, strbuf_addf(&key, "remote.%s.fetch", remotename); - if (!remote_is_configured(remotename)) - die("No such remote '%s'", remotename); remote = remote_get(remotename); + if (!remote_is_configured(remote)) + die(_("No such remote '%s'"), remotename); if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) { strbuf_release(&key); return 1; } - if (add_branches(remote, branches, key.buf)) { - strbuf_release(&key); - return 1; - } + add_branches(remote, branches, key.buf); strbuf_release(&key); return 0; @@ -1389,14 +1438,14 @@ static int set_branches(int argc, const char **argv) { int add_mode = 0; struct option options[] = { - OPT_BOOLEAN('\0', "add", &add_mode, "add branch"), + OPT_BOOL('\0', "add", &add_mode, N_("add branch")), OPT_END() }; argc = parse_options(argc, argv, NULL, options, builtin_remote_setbranches_usage, 0); if (argc == 0) { - error("no remote specified"); + error(_("no remote specified")); usage_with_options(builtin_remote_setbranches_usage, options); } argv[argc] = NULL; @@ -1404,6 +1453,57 @@ static int set_branches(int argc, const char **argv) return set_remote_branches(argv[0], argv + 1, add_mode); } +static int get_url(int argc, const char **argv) +{ + int i, push_mode = 0, all_mode = 0; + const char *remotename = NULL; + struct remote *remote; + const char **url; + int url_nr; + struct option options[] = { + OPT_BOOL('\0', "push", &push_mode, + N_("query push URLs rather than fetch URLs")), + OPT_BOOL('\0', "all", &all_mode, + N_("return all URLs")), + OPT_END() + }; + argc = parse_options(argc, argv, NULL, options, builtin_remote_geturl_usage, 0); + + if (argc != 1) + usage_with_options(builtin_remote_geturl_usage, options); + + remotename = argv[0]; + + remote = remote_get(remotename); + if (!remote_is_configured(remote)) + die(_("No such remote '%s'"), remotename); + + url_nr = 0; + if (push_mode) { + url = remote->pushurl; + url_nr = remote->pushurl_nr; + } + /* else fetch mode */ + + /* Use the fetch URL when no push URLs were found or requested. */ + if (!url_nr) { + url = remote->url; + url_nr = remote->url_nr; + } + + if (!url_nr) + die(_("no URLs configured for remote '%s'"), remotename); + + if (all_mode) { + for (i = 0; i < url_nr; i++) + printf_ln("%s", url[i]); + } else { + printf_ln("%s", *url); + } + + return 0; +} + static int set_url(int argc, const char **argv) { int i, push_mode = 0, add_mode = 0, delete_mode = 0; @@ -1417,19 +1517,19 @@ static int set_url(int argc, const char **argv) int urlset_nr; struct strbuf name_buf = STRBUF_INIT; struct option options[] = { - OPT_BOOLEAN('\0', "push", &push_mode, - "manipulate push URLs"), - OPT_BOOLEAN('\0', "add", &add_mode, - "add URL"), - OPT_BOOLEAN('\0', "delete", &delete_mode, - "delete URLs"), + OPT_BOOL('\0', "push", &push_mode, + N_("manipulate push URLs")), + OPT_BOOL('\0', "add", &add_mode, + N_("add URL")), + OPT_BOOL('\0', "delete", &delete_mode, + N_("delete URLs")), OPT_END() }; argc = parse_options(argc, argv, NULL, options, builtin_remote_seturl_usage, PARSE_OPT_KEEP_ARGV0); if (add_mode && delete_mode) - die("--add --delete doesn't make sense"); + die(_("--add --delete doesn't make sense")); if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3)) usage_with_options(builtin_remote_seturl_usage, options); @@ -1442,9 +1542,9 @@ static int set_url(int argc, const char **argv) if (delete_mode) oldurl = newurl; - if (!remote_is_configured(remotename)) - die("No such remote '%s'", remotename); remote = remote_get(remotename); + if (!remote_is_configured(remote)) + die(_("No such remote '%s'"), remotename); if (push_mode) { strbuf_addf(&name_buf, "remote.%s.pushurl", remotename); @@ -1460,16 +1560,17 @@ static int set_url(int argc, const char **argv) if ((!oldurl && !delete_mode) || add_mode) { if (add_mode) git_config_set_multivar(name_buf.buf, newurl, - "^$", 0); + "^$", 0); else git_config_set(name_buf.buf, newurl); strbuf_release(&name_buf); + return 0; } /* Old URL specified. Demand that one matches. */ if (regcomp(&old_regex, oldurl, REG_EXTENDED)) - die("Invalid old URL pattern: %s", oldurl); + die(_("Invalid old URL pattern: %s"), oldurl); for (i = 0; i < urlset_nr; i++) if (!regexec(&old_regex, urlset[i], 0, NULL, 0)) @@ -1477,9 +1578,9 @@ static int set_url(int argc, const char **argv) else negative_matches++; if (!delete_mode && !matches) - die("No such URL found: %s", oldurl); + die(_("No such URL found: %s"), oldurl); if (delete_mode && !negative_matches && !push_mode) - die("Will not delete all non-push URLs"); + die(_("Will not delete all non-push URLs")); regfree(&old_regex); @@ -1490,68 +1591,10 @@ static int set_url(int argc, const char **argv) return 0; } -static int get_one_entry(struct remote *remote, void *priv) -{ - struct string_list *list = priv; - struct strbuf url_buf = STRBUF_INIT; - const char **url; - int i, url_nr; - - if (remote->url_nr > 0) { - strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]); - string_list_append(list, remote->name)->util = - strbuf_detach(&url_buf, NULL); - } else - string_list_append(list, remote->name)->util = NULL; - if (remote->pushurl_nr) { - url = remote->pushurl; - url_nr = remote->pushurl_nr; - } else { - url = remote->url; - url_nr = remote->url_nr; - } - for (i = 0; i < url_nr; i++) - { - strbuf_addf(&url_buf, "%s (push)", url[i]); - string_list_append(list, remote->name)->util = - strbuf_detach(&url_buf, NULL); - } - - return 0; -} - -static int show_all(void) -{ - struct string_list list = STRING_LIST_INIT_NODUP; - int result; - - list.strdup_strings = 1; - result = for_each_remote(get_one_entry, &list); - - if (!result) { - int i; - - sort_string_list(&list); - for (i = 0; i < list.nr; i++) { - struct string_list_item *item = list.items + i; - if (verbose) - printf("%s\t%s\n", item->string, - item->util ? (const char *)item->util : ""); - else { - if (i && !strcmp((item - 1)->string, item->string)) - continue; - printf("%s\n", item->string); - } - } - } - string_list_clear(&list, 1); - return result; -} - int cmd_remote(int argc, const char **argv, const char *prefix) { struct option options[] = { - OPT__VERBOSE(&verbose, "be verbose; must be placed before a subcommand"), + OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")), OPT_END() }; int result; @@ -1565,12 +1608,14 @@ int cmd_remote(int argc, const char **argv, const char *prefix) result = add(argc, argv); else if (!strcmp(argv[0], "rename")) result = mv(argc, argv); - else if (!strcmp(argv[0], "rm")) + else if (!strcmp(argv[0], "rm") || !strcmp(argv[0], "remove")) result = rm(argc, argv); else if (!strcmp(argv[0], "set-head")) result = set_head(argc, argv); else if (!strcmp(argv[0], "set-branches")) result = set_branches(argc, argv); + else if (!strcmp(argv[0], "get-url")) + result = get_url(argc, argv); else if (!strcmp(argv[0], "set-url")) result = set_url(argc, argv); else if (!strcmp(argv[0], "show")) @@ -1580,7 +1625,7 @@ int cmd_remote(int argc, const char **argv, const char *prefix) else if (!strcmp(argv[0], "update")) result = update(argc, argv); else { - error("Unknown subcommand: %s", argv[0]); + error(_("Unknown subcommand: %s"), argv[0]); usage_with_options(builtin_remote_usage, options); } diff --git a/builtin/repack.c b/builtin/repack.c new file mode 100644 index 0000000000..858db38f52 --- /dev/null +++ b/builtin/repack.c @@ -0,0 +1,414 @@ +#include "builtin.h" +#include "cache.h" +#include "dir.h" +#include "parse-options.h" +#include "run-command.h" +#include "sigchain.h" +#include "strbuf.h" +#include "string-list.h" +#include "argv-array.h" + +static int delta_base_offset = 1; +static int pack_kept_objects = -1; +static int write_bitmaps; +static char *packdir, *packtmp; + +static const char *const git_repack_usage[] = { + N_("git repack [<options>]"), + NULL +}; + +static int repack_config(const char *var, const char *value, void *cb) +{ + if (!strcmp(var, "repack.usedeltabaseoffset")) { + delta_base_offset = git_config_bool(var, value); + return 0; + } + if (!strcmp(var, "repack.packkeptobjects")) { + pack_kept_objects = git_config_bool(var, value); + return 0; + } + if (!strcmp(var, "repack.writebitmaps") || + !strcmp(var, "pack.writebitmaps")) { + write_bitmaps = git_config_bool(var, value); + return 0; + } + return git_default_config(var, value, cb); +} + +/* + * Remove temporary $GIT_OBJECT_DIRECTORY/pack/.tmp-$$-pack-* files. + */ +static void remove_temporary_files(void) +{ + struct strbuf buf = STRBUF_INIT; + size_t dirlen, prefixlen; + DIR *dir; + struct dirent *e; + + dir = opendir(packdir); + if (!dir) + return; + + /* Point at the slash at the end of ".../objects/pack/" */ + dirlen = strlen(packdir) + 1; + strbuf_addstr(&buf, packtmp); + /* Hold the length of ".tmp-%d-pack-" */ + prefixlen = buf.len - dirlen; + + while ((e = readdir(dir))) { + if (strncmp(e->d_name, buf.buf + dirlen, prefixlen)) + continue; + strbuf_setlen(&buf, dirlen); + strbuf_addstr(&buf, e->d_name); + unlink(buf.buf); + } + closedir(dir); + strbuf_release(&buf); +} + +static void remove_pack_on_signal(int signo) +{ + remove_temporary_files(); + sigchain_pop(signo); + raise(signo); +} + +/* + * Adds all packs hex strings to the fname list, which do not + * have a corresponding .keep file. + */ +static void get_non_kept_pack_filenames(struct string_list *fname_list) +{ + DIR *dir; + struct dirent *e; + char *fname; + + if (!(dir = opendir(packdir))) + return; + + while ((e = readdir(dir)) != NULL) { + size_t len; + if (!strip_suffix(e->d_name, ".pack", &len)) + continue; + + fname = xmemdupz(e->d_name, len); + + if (!file_exists(mkpath("%s/%s.keep", packdir, fname))) + string_list_append_nodup(fname_list, fname); + else + free(fname); + } + closedir(dir); +} + +static void remove_redundant_pack(const char *dir_name, const char *base_name) +{ + const char *exts[] = {".pack", ".idx", ".keep", ".bitmap"}; + int i; + struct strbuf buf = STRBUF_INIT; + size_t plen; + + strbuf_addf(&buf, "%s/%s", dir_name, base_name); + plen = buf.len; + + for (i = 0; i < ARRAY_SIZE(exts); i++) { + strbuf_setlen(&buf, plen); + strbuf_addstr(&buf, exts[i]); + unlink(buf.buf); + } + strbuf_release(&buf); +} + +#define ALL_INTO_ONE 1 +#define LOOSEN_UNREACHABLE 2 + +int cmd_repack(int argc, const char **argv, const char *prefix) +{ + struct { + const char *name; + unsigned optional:1; + } exts[] = { + {".pack"}, + {".idx"}, + {".bitmap", 1}, + }; + struct child_process cmd = CHILD_PROCESS_INIT; + struct string_list_item *item; + struct string_list names = STRING_LIST_INIT_DUP; + struct string_list rollback = STRING_LIST_INIT_NODUP; + struct string_list existing_packs = STRING_LIST_INIT_DUP; + struct strbuf line = STRBUF_INIT; + int ext, ret, failed; + FILE *out; + + /* variables to be filled by option parsing */ + int pack_everything = 0; + int delete_redundant = 0; + const char *unpack_unreachable = NULL; + const char *window = NULL, *window_memory = NULL; + const char *depth = NULL; + const char *max_pack_size = NULL; + int no_reuse_delta = 0, no_reuse_object = 0; + int no_update_server_info = 0; + int quiet = 0; + int local = 0; + + struct option builtin_repack_options[] = { + OPT_BIT('a', NULL, &pack_everything, + N_("pack everything in a single pack"), ALL_INTO_ONE), + OPT_BIT('A', NULL, &pack_everything, + N_("same as -a, and turn unreachable objects loose"), + LOOSEN_UNREACHABLE | ALL_INTO_ONE), + OPT_BOOL('d', NULL, &delete_redundant, + N_("remove redundant packs, and run git-prune-packed")), + OPT_BOOL('f', NULL, &no_reuse_delta, + N_("pass --no-reuse-delta to git-pack-objects")), + OPT_BOOL('F', NULL, &no_reuse_object, + N_("pass --no-reuse-object to git-pack-objects")), + OPT_BOOL('n', NULL, &no_update_server_info, + N_("do not run git-update-server-info")), + OPT__QUIET(&quiet, N_("be quiet")), + OPT_BOOL('l', "local", &local, + N_("pass --local to git-pack-objects")), + OPT_BOOL('b', "write-bitmap-index", &write_bitmaps, + N_("write bitmap index")), + OPT_STRING(0, "unpack-unreachable", &unpack_unreachable, N_("approxidate"), + N_("with -A, do not loosen objects older than this")), + OPT_STRING(0, "window", &window, N_("n"), + N_("size of the window used for delta compression")), + OPT_STRING(0, "window-memory", &window_memory, N_("bytes"), + N_("same as the above, but limit memory size instead of entries count")), + OPT_STRING(0, "depth", &depth, N_("n"), + N_("limits the maximum delta depth")), + OPT_STRING(0, "max-pack-size", &max_pack_size, N_("bytes"), + N_("maximum size of each packfile")), + OPT_BOOL(0, "pack-kept-objects", &pack_kept_objects, + N_("repack objects in packs marked with .keep")), + OPT_END() + }; + + git_config(repack_config, NULL); + + argc = parse_options(argc, argv, prefix, builtin_repack_options, + git_repack_usage, 0); + + if (delete_redundant && repository_format_precious_objects) + die(_("cannot delete packs in a precious-objects repo")); + + if (pack_kept_objects < 0) + pack_kept_objects = write_bitmaps; + + packdir = mkpathdup("%s/pack", get_object_directory()); + packtmp = mkpathdup("%s/.tmp-%d-pack", packdir, (int)getpid()); + + sigchain_push_common(remove_pack_on_signal); + + argv_array_push(&cmd.args, "pack-objects"); + argv_array_push(&cmd.args, "--keep-true-parents"); + if (!pack_kept_objects) + argv_array_push(&cmd.args, "--honor-pack-keep"); + argv_array_push(&cmd.args, "--non-empty"); + argv_array_push(&cmd.args, "--all"); + argv_array_push(&cmd.args, "--reflog"); + argv_array_push(&cmd.args, "--indexed-objects"); + if (window) + argv_array_pushf(&cmd.args, "--window=%s", window); + if (window_memory) + argv_array_pushf(&cmd.args, "--window-memory=%s", window_memory); + if (depth) + argv_array_pushf(&cmd.args, "--depth=%s", depth); + if (max_pack_size) + argv_array_pushf(&cmd.args, "--max-pack-size=%s", max_pack_size); + if (no_reuse_delta) + argv_array_pushf(&cmd.args, "--no-reuse-delta"); + if (no_reuse_object) + argv_array_pushf(&cmd.args, "--no-reuse-object"); + if (write_bitmaps) + argv_array_push(&cmd.args, "--write-bitmap-index"); + + if (pack_everything & ALL_INTO_ONE) { + get_non_kept_pack_filenames(&existing_packs); + + if (existing_packs.nr && delete_redundant) { + if (unpack_unreachable) { + argv_array_pushf(&cmd.args, + "--unpack-unreachable=%s", + unpack_unreachable); + argv_array_push(&cmd.env_array, "GIT_REF_PARANOIA=1"); + } else if (pack_everything & LOOSEN_UNREACHABLE) { + argv_array_push(&cmd.args, + "--unpack-unreachable"); + } else { + argv_array_push(&cmd.env_array, "GIT_REF_PARANOIA=1"); + } + } + } else { + argv_array_push(&cmd.args, "--unpacked"); + argv_array_push(&cmd.args, "--incremental"); + } + + if (local) + argv_array_push(&cmd.args, "--local"); + if (quiet) + argv_array_push(&cmd.args, "--quiet"); + if (delta_base_offset) + argv_array_push(&cmd.args, "--delta-base-offset"); + + argv_array_push(&cmd.args, packtmp); + + cmd.git_cmd = 1; + cmd.out = -1; + cmd.no_stdin = 1; + + ret = start_command(&cmd); + if (ret) + return ret; + + out = xfdopen(cmd.out, "r"); + while (strbuf_getline_lf(&line, out) != EOF) { + if (line.len != 40) + die("repack: Expecting 40 character sha1 lines only from pack-objects."); + string_list_append(&names, line.buf); + } + fclose(out); + ret = finish_command(&cmd); + if (ret) + return ret; + + if (!names.nr && !quiet) + printf("Nothing new to pack.\n"); + + /* + * Ok we have prepared all new packfiles. + * First see if there are packs of the same name and if so + * if we can move them out of the way (this can happen if we + * repacked immediately after packing fully. + */ + failed = 0; + for_each_string_list_item(item, &names) { + for (ext = 0; ext < ARRAY_SIZE(exts); ext++) { + char *fname, *fname_old; + fname = mkpathdup("%s/pack-%s%s", packdir, + item->string, exts[ext].name); + if (!file_exists(fname)) { + free(fname); + continue; + } + + fname_old = mkpathdup("%s/old-%s%s", packdir, + item->string, exts[ext].name); + if (file_exists(fname_old)) + if (unlink(fname_old)) + failed = 1; + + if (!failed && rename(fname, fname_old)) { + free(fname); + free(fname_old); + failed = 1; + break; + } else { + string_list_append(&rollback, fname); + free(fname_old); + } + } + if (failed) + break; + } + if (failed) { + struct string_list rollback_failure = STRING_LIST_INIT_DUP; + for_each_string_list_item(item, &rollback) { + char *fname, *fname_old; + fname = mkpathdup("%s/%s", packdir, item->string); + fname_old = mkpathdup("%s/old-%s", packdir, item->string); + if (rename(fname_old, fname)) + string_list_append(&rollback_failure, fname); + free(fname); + free(fname_old); + } + + if (rollback_failure.nr) { + int i; + fprintf(stderr, + "WARNING: Some packs in use have been renamed by\n" + "WARNING: prefixing old- to their name, in order to\n" + "WARNING: replace them with the new version of the\n" + "WARNING: file. But the operation failed, and the\n" + "WARNING: attempt to rename them back to their\n" + "WARNING: original names also failed.\n" + "WARNING: Please rename them in %s manually:\n", packdir); + for (i = 0; i < rollback_failure.nr; i++) + fprintf(stderr, "WARNING: old-%s -> %s\n", + rollback_failure.items[i].string, + rollback_failure.items[i].string); + } + exit(1); + } + + /* Now the ones with the same name are out of the way... */ + for_each_string_list_item(item, &names) { + for (ext = 0; ext < ARRAY_SIZE(exts); ext++) { + char *fname, *fname_old; + struct stat statbuffer; + int exists = 0; + fname = mkpathdup("%s/pack-%s%s", + packdir, item->string, exts[ext].name); + fname_old = mkpathdup("%s-%s%s", + packtmp, item->string, exts[ext].name); + if (!stat(fname_old, &statbuffer)) { + statbuffer.st_mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH); + chmod(fname_old, statbuffer.st_mode); + exists = 1; + } + if (exists || !exts[ext].optional) { + if (rename(fname_old, fname)) + die_errno(_("renaming '%s' failed"), fname_old); + } + free(fname); + free(fname_old); + } + } + + /* Remove the "old-" files */ + for_each_string_list_item(item, &names) { + for (ext = 0; ext < ARRAY_SIZE(exts); ext++) { + char *fname; + fname = mkpathdup("%s/old-%s%s", + packdir, + item->string, + exts[ext].name); + if (remove_path(fname)) + warning(_("removing '%s' failed"), fname); + free(fname); + } + } + + /* End of pack replacement. */ + + if (delete_redundant) { + int opts = 0; + string_list_sort(&names); + for_each_string_list_item(item, &existing_packs) { + char *sha1; + size_t len = strlen(item->string); + if (len < 40) + continue; + sha1 = item->string + len - 40; + if (!string_list_has_string(&names, sha1)) + remove_redundant_pack(packdir, item->string); + } + if (!quiet && isatty(2)) + opts |= PRUNE_PACKED_VERBOSE; + prune_packed_objects(opts); + } + + if (!no_update_server_info) + update_server_info(0); + remove_temporary_files(); + string_list_clear(&names, 0); + string_list_clear(&rollback, 0); + string_list_clear(&existing_packs, 0); + strbuf_release(&line); + + return 0; +} diff --git a/builtin/replace.c b/builtin/replace.c index 4a8970e9c9..b58c714cb8 100644 --- a/builtin/replace.c +++ b/builtin/replace.c @@ -3,7 +3,7 @@ * * Copyright (c) 2008 Christian Couder <chriscool@tuxfamily.org> * - * Based on builtin-tag.c by Kristian Høgsberg <krh@redhat.com> + * Based on builtin/tag.c by Kristian Høgsberg <krh@redhat.com> * and Carlos Rica <jasampler@gmail.com> that was itself based on * git-tag.sh and mktag.c by Linus Torvalds. */ @@ -12,31 +12,77 @@ #include "builtin.h" #include "refs.h" #include "parse-options.h" +#include "run-command.h" +#include "tag.h" static const char * const git_replace_usage[] = { - "git replace [-f] <object> <replacement>", - "git replace -d <object>...", - "git replace -l [<pattern>]", + N_("git replace [-f] <object> <replacement>"), + N_("git replace [-f] --edit <object>"), + N_("git replace [-f] --graft <commit> [<parent>...]"), + N_("git replace -d <object>..."), + N_("git replace [--format=<format>] [-l [<pattern>]]"), NULL }; -static int show_reference(const char *refname, const unsigned char *sha1, +enum replace_format { + REPLACE_FORMAT_SHORT, + REPLACE_FORMAT_MEDIUM, + REPLACE_FORMAT_LONG +}; + +struct show_data { + const char *pattern; + enum replace_format format; +}; + +static int show_reference(const char *refname, const struct object_id *oid, int flag, void *cb_data) { - const char *pattern = cb_data; + struct show_data *data = cb_data; - if (!fnmatch(pattern, refname, 0)) - printf("%s\n", refname); + if (!wildmatch(data->pattern, refname, 0, NULL)) { + if (data->format == REPLACE_FORMAT_SHORT) + printf("%s\n", refname); + else if (data->format == REPLACE_FORMAT_MEDIUM) + printf("%s -> %s\n", refname, oid_to_hex(oid)); + else { /* data->format == REPLACE_FORMAT_LONG */ + struct object_id object; + enum object_type obj_type, repl_type; + + if (get_sha1(refname, object.hash)) + return error("Failed to resolve '%s' as a valid ref.", refname); + + obj_type = sha1_object_info(object.hash, NULL); + repl_type = sha1_object_info(oid->hash, NULL); + + printf("%s (%s) -> %s (%s)\n", refname, typename(obj_type), + oid_to_hex(oid), typename(repl_type)); + } + } return 0; } -static int list_replace_refs(const char *pattern) +static int list_replace_refs(const char *pattern, const char *format) { + struct show_data data; + if (pattern == NULL) pattern = "*"; + data.pattern = pattern; - for_each_replace_ref(show_reference, (void *) pattern); + if (format == NULL || *format == '\0' || !strcmp(format, "short")) + data.format = REPLACE_FORMAT_SHORT; + else if (!strcmp(format, "medium")) + data.format = REPLACE_FORMAT_MEDIUM; + else if (!strcmp(format, "long")) + data.format = REPLACE_FORMAT_LONG; + else + die("invalid replace format '%s'\n" + "valid formats are 'short', 'medium' and 'long'\n", + format); + + for_each_replace_ref(show_reference, (void *)&data); return 0; } @@ -46,24 +92,27 @@ typedef int (*each_replace_name_fn)(const char *name, const char *ref, static int for_each_replace_name(const char **argv, each_replace_name_fn fn) { - const char **p; + const char **p, *full_hex; char ref[PATH_MAX]; int had_error = 0; unsigned char sha1[20]; for (p = argv; *p; p++) { - if (snprintf(ref, sizeof(ref), "refs/replace/%s", *p) - >= sizeof(ref)) { - error("replace ref name too long: %.*s...", 50, *p); + if (get_sha1(*p, sha1)) { + error("Failed to resolve '%s' as a valid ref.", *p); had_error = 1; continue; } + full_hex = sha1_to_hex(sha1); + snprintf(ref, sizeof(ref), "%s%s", git_replace_ref_base, full_hex); + /* read_ref() may reuse the buffer */ + full_hex = ref + strlen(git_replace_ref_base); if (read_ref(ref, sha1)) { - error("replace ref '%s' not found.", *p); + error("replace ref '%s' not found.", full_hex); had_error = 1; continue; } - if (fn(*p, ref, sha1)) + if (fn(full_hex, ref, sha1)) had_error = 1; } return had_error; @@ -78,21 +127,15 @@ static int delete_replace_ref(const char *name, const char *ref, return 0; } -static int replace_object(const char *object_ref, const char *replace_ref, - int force) +static void check_ref_valid(unsigned char object[20], + unsigned char prev[20], + char *ref, + int ref_size, + int force) { - unsigned char object[20], prev[20], repl[20]; - char ref[PATH_MAX]; - struct ref_lock *lock; - - if (get_sha1(object_ref, object)) - die("Failed to resolve '%s' as a valid ref.", object_ref); - if (get_sha1(replace_ref, repl)) - die("Failed to resolve '%s' as a valid ref.", replace_ref); - - if (snprintf(ref, sizeof(ref), - "refs/replace/%s", - sha1_to_hex(object)) > sizeof(ref) - 1) + if (snprintf(ref, ref_size, + "%s%s", git_replace_ref_base, + sha1_to_hex(object)) > ref_size - 1) die("replace ref name too long: %.*s...", 50, ref); if (check_refname_format(ref, 0)) die("'%s' is not a valid ref name.", ref); @@ -101,59 +144,356 @@ static int replace_object(const char *object_ref, const char *replace_ref, hashclr(prev); else if (!force) die("replace ref '%s' already exists", ref); +} + +static int replace_object_sha1(const char *object_ref, + unsigned char object[20], + const char *replace_ref, + unsigned char repl[20], + int force) +{ + unsigned char prev[20]; + enum object_type obj_type, repl_type; + char ref[PATH_MAX]; + struct ref_transaction *transaction; + struct strbuf err = STRBUF_INIT; + + obj_type = sha1_object_info(object, NULL); + repl_type = sha1_object_info(repl, NULL); + if (!force && obj_type != repl_type) + die("Objects must be of the same type.\n" + "'%s' points to a replaced object of type '%s'\n" + "while '%s' points to a replacement object of type '%s'.", + object_ref, typename(obj_type), + replace_ref, typename(repl_type)); - lock = lock_any_ref_for_update(ref, prev, 0); - if (!lock) - die("%s: cannot lock the ref", ref); - if (write_ref_sha1(lock, repl, NULL) < 0) - die("%s: cannot update the ref", ref); + check_ref_valid(object, prev, ref, sizeof(ref), force); + transaction = ref_transaction_begin(&err); + if (!transaction || + ref_transaction_update(transaction, ref, repl, prev, + 0, NULL, &err) || + ref_transaction_commit(transaction, &err)) + die("%s", err.buf); + + ref_transaction_free(transaction); return 0; } +static int replace_object(const char *object_ref, const char *replace_ref, int force) +{ + unsigned char object[20], repl[20]; + + if (get_sha1(object_ref, object)) + die("Failed to resolve '%s' as a valid ref.", object_ref); + if (get_sha1(replace_ref, repl)) + die("Failed to resolve '%s' as a valid ref.", replace_ref); + + return replace_object_sha1(object_ref, object, replace_ref, repl, force); +} + +/* + * Write the contents of the object named by "sha1" to the file "filename". + * If "raw" is true, then the object's raw contents are printed according to + * "type". Otherwise, we pretty-print the contents for human editing. + */ +static void export_object(const unsigned char *sha1, enum object_type type, + int raw, const char *filename) +{ + struct child_process cmd = CHILD_PROCESS_INIT; + int fd; + + fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666); + if (fd < 0) + die_errno("unable to open %s for writing", filename); + + argv_array_push(&cmd.args, "--no-replace-objects"); + argv_array_push(&cmd.args, "cat-file"); + if (raw) + argv_array_push(&cmd.args, typename(type)); + else + argv_array_push(&cmd.args, "-p"); + argv_array_push(&cmd.args, sha1_to_hex(sha1)); + cmd.git_cmd = 1; + cmd.out = fd; + + if (run_command(&cmd)) + die("cat-file reported failure"); +} + +/* + * Read a previously-exported (and possibly edited) object back from "filename", + * interpreting it as "type", and writing the result to the object database. + * The sha1 of the written object is returned via sha1. + */ +static void import_object(unsigned char *sha1, enum object_type type, + int raw, const char *filename) +{ + int fd; + + fd = open(filename, O_RDONLY); + if (fd < 0) + die_errno("unable to open %s for reading", filename); + + if (!raw && type == OBJ_TREE) { + const char *argv[] = { "mktree", NULL }; + struct child_process cmd = CHILD_PROCESS_INIT; + struct strbuf result = STRBUF_INIT; + + cmd.argv = argv; + cmd.git_cmd = 1; + cmd.in = fd; + cmd.out = -1; + + if (start_command(&cmd)) + die("unable to spawn mktree"); + + if (strbuf_read(&result, cmd.out, 41) < 0) + die_errno("unable to read from mktree"); + close(cmd.out); + + if (finish_command(&cmd)) + die("mktree reported failure"); + if (get_sha1_hex(result.buf, sha1) < 0) + die("mktree did not return an object name"); + + strbuf_release(&result); + } else { + struct stat st; + int flags = HASH_FORMAT_CHECK | HASH_WRITE_OBJECT; + + if (fstat(fd, &st) < 0) + die_errno("unable to fstat %s", filename); + if (index_fd(sha1, fd, &st, type, NULL, flags) < 0) + die("unable to write object to database"); + /* index_fd close()s fd for us */ + } + + /* + * No need to close(fd) here; both run-command and index-fd + * will have done it for us. + */ +} + +static int edit_and_replace(const char *object_ref, int force, int raw) +{ + char *tmpfile = git_pathdup("REPLACE_EDITOBJ"); + enum object_type type; + unsigned char old[20], new[20], prev[20]; + char ref[PATH_MAX]; + + if (get_sha1(object_ref, old) < 0) + die("Not a valid object name: '%s'", object_ref); + + type = sha1_object_info(old, NULL); + if (type < 0) + die("unable to get object type for %s", sha1_to_hex(old)); + + check_ref_valid(old, prev, ref, sizeof(ref), force); + + export_object(old, type, raw, tmpfile); + if (launch_editor(tmpfile, NULL, NULL) < 0) + die("editing object file failed"); + import_object(new, type, raw, tmpfile); + + free(tmpfile); + + if (!hashcmp(old, new)) + return error("new object is the same as the old one: '%s'", sha1_to_hex(old)); + + return replace_object_sha1(object_ref, old, "replacement", new, force); +} + +static void replace_parents(struct strbuf *buf, int argc, const char **argv) +{ + struct strbuf new_parents = STRBUF_INIT; + const char *parent_start, *parent_end; + int i; + + /* find existing parents */ + parent_start = buf->buf; + parent_start += 46; /* "tree " + "hex sha1" + "\n" */ + parent_end = parent_start; + + while (starts_with(parent_end, "parent ")) + parent_end += 48; /* "parent " + "hex sha1" + "\n" */ + + /* prepare new parents */ + for (i = 0; i < argc; i++) { + unsigned char sha1[20]; + if (get_sha1(argv[i], sha1) < 0) + die(_("Not a valid object name: '%s'"), argv[i]); + lookup_commit_or_die(sha1, argv[i]); + strbuf_addf(&new_parents, "parent %s\n", sha1_to_hex(sha1)); + } + + /* replace existing parents with new ones */ + strbuf_splice(buf, parent_start - buf->buf, parent_end - parent_start, + new_parents.buf, new_parents.len); + + strbuf_release(&new_parents); +} + +struct check_mergetag_data { + int argc; + const char **argv; +}; + +static void check_one_mergetag(struct commit *commit, + struct commit_extra_header *extra, + void *data) +{ + struct check_mergetag_data *mergetag_data = (struct check_mergetag_data *)data; + const char *ref = mergetag_data->argv[0]; + unsigned char tag_sha1[20]; + struct tag *tag; + int i; + + hash_sha1_file(extra->value, extra->len, typename(OBJ_TAG), tag_sha1); + tag = lookup_tag(tag_sha1); + if (!tag) + die(_("bad mergetag in commit '%s'"), ref); + if (parse_tag_buffer(tag, extra->value, extra->len)) + die(_("malformed mergetag in commit '%s'"), ref); + + /* iterate over new parents */ + for (i = 1; i < mergetag_data->argc; i++) { + struct object_id oid; + if (get_sha1(mergetag_data->argv[i], oid.hash) < 0) + die(_("Not a valid object name: '%s'"), mergetag_data->argv[i]); + if (!oidcmp(&tag->tagged->oid, &oid)) + return; /* found */ + } + + die(_("original commit '%s' contains mergetag '%s' that is discarded; " + "use --edit instead of --graft"), ref, sha1_to_hex(tag_sha1)); +} + +static void check_mergetags(struct commit *commit, int argc, const char **argv) +{ + struct check_mergetag_data mergetag_data; + + mergetag_data.argc = argc; + mergetag_data.argv = argv; + for_each_mergetag(check_one_mergetag, commit, &mergetag_data); +} + +static int create_graft(int argc, const char **argv, int force) +{ + unsigned char old[20], new[20]; + const char *old_ref = argv[0]; + struct commit *commit; + struct strbuf buf = STRBUF_INIT; + const char *buffer; + unsigned long size; + + if (get_sha1(old_ref, old) < 0) + die(_("Not a valid object name: '%s'"), old_ref); + commit = lookup_commit_or_die(old, old_ref); + + buffer = get_commit_buffer(commit, &size); + strbuf_add(&buf, buffer, size); + unuse_commit_buffer(commit, buffer); + + replace_parents(&buf, argc - 1, &argv[1]); + + if (remove_signature(&buf)) { + warning(_("the original commit '%s' has a gpg signature."), old_ref); + warning(_("the signature will be removed in the replacement commit!")); + } + + check_mergetags(commit, argc, argv); + + if (write_sha1_file(buf.buf, buf.len, commit_type, new)) + die(_("could not write replacement commit for: '%s'"), old_ref); + + strbuf_release(&buf); + + if (!hashcmp(old, new)) + return error("new commit is the same as the old one: '%s'", sha1_to_hex(old)); + + return replace_object_sha1(old_ref, old, "replacement", new, force); +} + int cmd_replace(int argc, const char **argv, const char *prefix) { - int list = 0, delete = 0, force = 0; + int force = 0; + int raw = 0; + const char *format = NULL; + enum { + MODE_UNSPECIFIED = 0, + MODE_LIST, + MODE_DELETE, + MODE_EDIT, + MODE_GRAFT, + MODE_REPLACE + } cmdmode = MODE_UNSPECIFIED; struct option options[] = { - OPT_BOOLEAN('l', NULL, &list, "list replace refs"), - OPT_BOOLEAN('d', NULL, &delete, "delete replace refs"), - OPT_BOOLEAN('f', NULL, &force, "replace the ref if it exists"), + OPT_CMDMODE('l', "list", &cmdmode, N_("list replace refs"), MODE_LIST), + OPT_CMDMODE('d', "delete", &cmdmode, N_("delete replace refs"), MODE_DELETE), + OPT_CMDMODE('e', "edit", &cmdmode, N_("edit existing object"), MODE_EDIT), + OPT_CMDMODE('g', "graft", &cmdmode, N_("change a commit's parents"), MODE_GRAFT), + OPT_BOOL('f', "force", &force, N_("replace the ref if it exists")), + OPT_BOOL(0, "raw", &raw, N_("do not pretty-print contents for --edit")), + OPT_STRING(0, "format", &format, N_("format"), N_("use this format")), OPT_END() }; + check_replace_refs = 0; + git_config(git_default_config, NULL); + argc = parse_options(argc, argv, prefix, options, git_replace_usage, 0); - if (list && delete) - usage_msg_opt("-l and -d cannot be used together", + if (!cmdmode) + cmdmode = argc ? MODE_REPLACE : MODE_LIST; + + if (format && cmdmode != MODE_LIST) + usage_msg_opt("--format cannot be used when not listing", + git_replace_usage, options); + + if (force && + cmdmode != MODE_REPLACE && + cmdmode != MODE_EDIT && + cmdmode != MODE_GRAFT) + usage_msg_opt("-f only makes sense when writing a replacement", git_replace_usage, options); - if (force && (list || delete)) - usage_msg_opt("-f cannot be used with -d or -l", + if (raw && cmdmode != MODE_EDIT) + usage_msg_opt("--raw only makes sense with --edit", git_replace_usage, options); - /* Delete refs */ - if (delete) { + switch (cmdmode) { + case MODE_DELETE: if (argc < 1) usage_msg_opt("-d needs at least one argument", git_replace_usage, options); return for_each_replace_name(argv, delete_replace_ref); - } - /* Replace object */ - if (!list && argc) { + case MODE_REPLACE: if (argc != 2) usage_msg_opt("bad number of arguments", git_replace_usage, options); return replace_object(argv[0], argv[1], force); - } - /* List refs, even if "list" is not set */ - if (argc > 1) - usage_msg_opt("only one pattern can be given with -l", - git_replace_usage, options); - if (force) - usage_msg_opt("-f needs some arguments", - git_replace_usage, options); + case MODE_EDIT: + if (argc != 1) + usage_msg_opt("-e needs exactly one argument", + git_replace_usage, options); + return edit_and_replace(argv[0], force, raw); + + case MODE_GRAFT: + if (argc < 1) + usage_msg_opt("-g needs at least one argument", + git_replace_usage, options); + return create_graft(argc, argv, force); - return list_replace_refs(argv[0]); + case MODE_LIST: + if (argc > 1) + usage_msg_opt("only one pattern can be given with -l", + git_replace_usage, options); + return list_replace_refs(argv[0], format); + + default: + die("BUG: invalid cmdmode %d", (int)cmdmode); + } } diff --git a/builtin/rerere.c b/builtin/rerere.c index 08213c7c0b..1bf72423bf 100644 --- a/builtin/rerere.c +++ b/builtin/rerere.c @@ -6,9 +6,10 @@ #include "rerere.h" #include "xdiff/xdiff.h" #include "xdiff-interface.h" +#include "pathspec.h" static const char * const rerere_usage[] = { - "git rerere [clear | forget path... | status | remaining | diff | gc]", + N_("git rerere [clear | forget <path>... | status | remaining | diff | gc]"), NULL, }; @@ -28,9 +29,10 @@ static int diff_two(const char *file1, const char *label1, xdemitconf_t xecfg; xdemitcb_t ecb; mmfile_t minus, plus; + int ret; if (read_mmfile(&minus, file1) || read_mmfile(&plus, file2)) - return 1; + return -1; printf("--- a/%s\n+++ b/%s\n", label1, label2); fflush(stdout); @@ -39,26 +41,28 @@ static int diff_two(const char *file1, const char *label1, memset(&xecfg, 0, sizeof(xecfg)); xecfg.ctxlen = 3; ecb.outf = outf; - xdi_diff(&minus, &plus, &xpp, &xecfg, &ecb); + ret = xdi_diff(&minus, &plus, &xpp, &xecfg, &ecb); free(minus.ptr); free(plus.ptr); - return 0; + return ret; } int cmd_rerere(int argc, const char **argv, const char *prefix) { struct string_list merge_rr = STRING_LIST_INIT_DUP; - int i, fd, autoupdate = -1, flags = 0; + int i, autoupdate = -1, flags = 0; struct option options[] = { OPT_SET_INT(0, "rerere-autoupdate", &autoupdate, - "register clean resolutions in index", 1), + N_("register clean resolutions in index"), 1), OPT_END(), }; argc = parse_options(argc, argv, prefix, options, rerere_usage, 0); + git_config(git_xmerge_config, NULL); + if (autoupdate == 1) flags = RERERE_AUTOUPDATE; if (autoupdate == 0) @@ -68,25 +72,24 @@ int cmd_rerere(int argc, const char **argv, const char *prefix) return rerere(flags); if (!strcmp(argv[0], "forget")) { - const char **pathspec; + struct pathspec pathspec; if (argc < 2) warning("'git rerere forget' without paths is deprecated"); - pathspec = get_pathspec(prefix, argv + 1); - return rerere_forget(pathspec); + parse_pathspec(&pathspec, 0, PATHSPEC_PREFER_CWD, + prefix, argv + 1); + return rerere_forget(&pathspec); } - fd = setup_rerere(&merge_rr, flags); - if (fd < 0) - return 0; - if (!strcmp(argv[0], "clear")) { rerere_clear(&merge_rr); } else if (!strcmp(argv[0], "gc")) rerere_gc(&merge_rr); - else if (!strcmp(argv[0], "status")) + else if (!strcmp(argv[0], "status")) { + if (setup_rerere(&merge_rr, flags | RERERE_READONLY) < 0) + return 0; for (i = 0; i < merge_rr.nr; i++) printf("%s\n", merge_rr.items[i].string); - else if (!strcmp(argv[0], "remaining")) { + } else if (!strcmp(argv[0], "remaining")) { rerere_remaining(&merge_rr); for (i = 0; i < merge_rr.nr; i++) { if (merge_rr.items[i].util != RERERE_RESOLVED) @@ -96,13 +99,16 @@ int cmd_rerere(int argc, const char **argv, const char *prefix) * string_list_clear() */ merge_rr.items[i].util = NULL; } - } else if (!strcmp(argv[0], "diff")) + } else if (!strcmp(argv[0], "diff")) { + if (setup_rerere(&merge_rr, flags | RERERE_READONLY) < 0) + return 0; for (i = 0; i < merge_rr.nr; i++) { const char *path = merge_rr.items[i].string; - const char *name = (const char *)merge_rr.items[i].util; - diff_two(rerere_path(name, "preimage"), path, path, path); + const struct rerere_id *id = merge_rr.items[i].util; + if (diff_two(rerere_path(id, "preimage"), path, path, path)) + die("unable to generate diff for %s", rerere_path(id, NULL)); } - else + } else usage_with_options(rerere_usage, options); string_list_clear(&merge_rr, 1); diff --git a/builtin/reset.c b/builtin/reset.c index 8c2c1d52a2..092c3a5399 100644 --- a/builtin/reset.c +++ b/builtin/reset.c @@ -8,6 +8,7 @@ * Copyright (c) 2005, 2006 Linus Torvalds and Junio C Hamano */ #include "builtin.h" +#include "lockfile.h" #include "tag.h" #include "object.h" #include "commit.h" @@ -22,9 +23,9 @@ #include "cache-tree.h" static const char * const git_reset_usage[] = { - "git reset [--mixed | --soft | --hard | --merge | --keep] [-q] [<commit>]", - "git reset [-q] <commit> [--] <paths>...", - "git reset --patch [<commit>] [--] [<paths>...]", + N_("git reset [--mixed | --soft | --hard | --merge | --keep] [-q] [<commit>]"), + N_("git reset [-q] <tree-ish> [--] <paths>..."), + N_("git reset --patch [<tree-ish>] [--] [<paths>...]"), NULL }; @@ -35,17 +36,15 @@ static const char *reset_type_names[] = { static inline int is_merge(void) { - return !access(git_path("MERGE_HEAD"), F_OK); + return !access(git_path_merge_head(), F_OK); } -static int reset_index_file(const unsigned char *sha1, int reset_type, int quiet) +static int reset_index(const unsigned char *sha1, int reset_type, int quiet) { int nr = 1; - int newfd; struct tree_desc desc[2]; struct tree *tree; struct unpack_trees_options opts; - struct lock_file *lock = xcalloc(1, sizeof(struct lock_file)); memset(&opts, 0, sizeof(opts)); opts.head_idx = 1; @@ -67,8 +66,6 @@ static int reset_index_file(const unsigned char *sha1, int reset_type, int quiet opts.reset = 1; } - newfd = hold_locked_index(lock, 1); - read_cache_unmerged(); if (reset_type == KEEP) { @@ -88,23 +85,21 @@ static int reset_index_file(const unsigned char *sha1, int reset_type, int quiet if (reset_type == MIXED || reset_type == HARD) { tree = parse_tree_indirect(sha1); - prime_cache_tree(&active_cache_tree, tree); + prime_cache_tree(&the_index, tree); } - if (write_cache(newfd, active_cache, active_nr) || - commit_locked_index(lock)) - return error(_("Could not write new index file.")); - return 0; } static void print_new_head_line(struct commit *commit) { const char *hex, *body; + const char *msg; - hex = find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV); + hex = find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV); printf(_("HEAD is now at %s"), hex); - body = strstr(commit->buffer, "\n\n"); + msg = logmsg_reencode(commit, NULL, get_log_output_encoding()); + body = strstr(msg, "\n\n"); if (body) { const char *eol; size_t len; @@ -115,92 +110,57 @@ static void print_new_head_line(struct commit *commit) } else printf("\n"); -} - -static int update_index_refresh(int fd, struct lock_file *index_lock, int flags) -{ - int result; - - if (!index_lock) { - index_lock = xcalloc(1, sizeof(struct lock_file)); - fd = hold_locked_index(index_lock, 1); - } - - if (read_cache() < 0) - return error(_("Could not read index")); - - result = refresh_index(&the_index, (flags), NULL, NULL, - _("Unstaged changes after reset:")) ? 1 : 0; - if (write_cache(fd, active_cache, active_nr) || - commit_locked_index(index_lock)) - return error ("Could not refresh index"); - return result; + unuse_commit_buffer(commit, msg); } static void update_index_from_diff(struct diff_queue_struct *q, struct diff_options *opt, void *data) { int i; - int *discard_flag = data; - - /* do_diff_cache() mangled the index */ - discard_cache(); - *discard_flag = 1; - read_cache(); + int intent_to_add = *(int *)data; for (i = 0; i < q->nr; i++) { struct diff_filespec *one = q->queue[i]->one; - if (one->mode && !is_null_sha1(one->sha1)) { - struct cache_entry *ce; - ce = make_cache_entry(one->mode, one->sha1, one->path, - 0, 0); - if (!ce) - die(_("make_cache_entry failed for path '%s'"), - one->path); - add_cache_entry(ce, ADD_CACHE_OK_TO_ADD | - ADD_CACHE_OK_TO_REPLACE); - } else - remove_file_from_cache(one->path); - } -} - -static int interactive_reset(const char *revision, const char **argv, - const char *prefix) -{ - const char **pathspec = NULL; + int is_missing = !(one->mode && !is_null_sha1(one->sha1)); + struct cache_entry *ce; - if (*argv) - pathspec = get_pathspec(prefix, argv); + if (is_missing && !intent_to_add) { + remove_file_from_cache(one->path); + continue; + } - return run_add_interactive(revision, "--patch=reset", pathspec); + ce = make_cache_entry(one->mode, one->sha1, one->path, + 0, 0); + if (!ce) + die(_("make_cache_entry failed for path '%s'"), + one->path); + if (is_missing) { + ce->ce_flags |= CE_INTENT_TO_ADD; + set_object_name_for_intent_to_add_entry(ce); + } + add_cache_entry(ce, ADD_CACHE_OK_TO_ADD | ADD_CACHE_OK_TO_REPLACE); + } } -static int read_from_tree(const char *prefix, const char **argv, - unsigned char *tree_sha1, int refresh_flags) +static int read_from_tree(const struct pathspec *pathspec, + unsigned char *tree_sha1, + int intent_to_add) { - struct lock_file *lock = xcalloc(1, sizeof(struct lock_file)); - int index_fd, index_was_discarded = 0; struct diff_options opt; memset(&opt, 0, sizeof(opt)); - diff_tree_setup_paths(get_pathspec(prefix, (const char **)argv), &opt); + copy_pathspec(&opt.pathspec, pathspec); opt.output_format = DIFF_FORMAT_CALLBACK; opt.format_callback = update_index_from_diff; - opt.format_callback_data = &index_was_discarded; + opt.format_callback_data = &intent_to_add; - index_fd = hold_locked_index(lock, 1); - index_was_discarded = 0; - read_cache(); if (do_diff_cache(tree_sha1, &opt)) return 1; diffcore_std(&opt); diff_flush(&opt); - diff_tree_release_paths(&opt); + free_pathspec(&opt.pathspec); - if (!index_was_discarded) - /* The index is still clobbered from do_diff_cache() */ - discard_cache(); - return update_index_refresh(index_fd, lock, refresh_flags); + return 0; } static void set_reflog_message(struct strbuf *sb, const char *action, @@ -219,158 +179,211 @@ static void set_reflog_message(struct strbuf *sb, const char *action, static void die_if_unmerged_cache(int reset_type) { - if (is_merge() || read_cache() < 0 || unmerged_cache()) + if (is_merge() || unmerged_cache()) die(_("Cannot do a %s reset in the middle of a merge."), _(reset_type_names[reset_type])); } -int cmd_reset(int argc, const char **argv, const char *prefix) +static void parse_args(struct pathspec *pathspec, + const char **argv, const char *prefix, + int patch_mode, + const char **rev_ret) { - int i = 0, reset_type = NONE, update_ref_status = 0, quiet = 0; - int patch_mode = 0; const char *rev = "HEAD"; - unsigned char sha1[20], *orig = NULL, sha1_orig[20], - *old_orig = NULL, sha1_old_orig[20]; - struct commit *commit; - struct strbuf msg = STRBUF_INIT; - const struct option options[] = { - OPT__QUIET(&quiet, "be quiet, only report errors"), - OPT_SET_INT(0, "mixed", &reset_type, - "reset HEAD and index", MIXED), - OPT_SET_INT(0, "soft", &reset_type, "reset only HEAD", SOFT), - OPT_SET_INT(0, "hard", &reset_type, - "reset HEAD, index and working tree", HARD), - OPT_SET_INT(0, "merge", &reset_type, - "reset HEAD, index and working tree", MERGE), - OPT_SET_INT(0, "keep", &reset_type, - "reset HEAD but keep local changes", KEEP), - OPT_BOOLEAN('p', "patch", &patch_mode, "select hunks interactively"), - OPT_END() - }; - - git_config(git_default_config, NULL); - - argc = parse_options(argc, argv, prefix, options, git_reset_usage, - PARSE_OPT_KEEP_DASHDASH); - + unsigned char unused[20]; /* * Possible arguments are: * - * git reset [-opts] <rev> <paths>... - * git reset [-opts] <rev> -- <paths>... - * git reset [-opts] -- <paths>... + * git reset [-opts] [<rev>] + * git reset [-opts] <tree> [<paths>...] + * git reset [-opts] <tree> -- [<paths>...] + * git reset [-opts] -- [<paths>...] * git reset [-opts] <paths>... * - * At this point, argv[i] points immediately after [-opts]. + * At this point, argv points immediately after [-opts]. */ - if (i < argc) { - if (!strcmp(argv[i], "--")) { - i++; /* reset to HEAD, possibly with paths */ - } else if (i + 1 < argc && !strcmp(argv[i+1], "--")) { - rev = argv[i]; - i += 2; + if (argv[0]) { + if (!strcmp(argv[0], "--")) { + argv++; /* reset to HEAD, possibly with paths */ + } else if (argv[1] && !strcmp(argv[1], "--")) { + rev = argv[0]; + argv += 2; } /* - * Otherwise, argv[i] could be either <rev> or <paths> and - * has to be unambiguous. + * Otherwise, argv[0] could be either <rev> or <paths> and + * has to be unambiguous. If there is a single argument, it + * can not be a tree */ - else if (!get_sha1(argv[i], sha1)) { + else if ((!argv[1] && !get_sha1_committish(argv[0], unused)) || + (argv[1] && !get_sha1_treeish(argv[0], unused))) { /* - * Ok, argv[i] looks like a rev; it should not + * Ok, argv[0] looks like a commit/tree; it should not * be a filename. */ - verify_non_filename(prefix, argv[i]); - rev = argv[i++]; + verify_non_filename(prefix, argv[0]); + rev = *argv++; } else { /* Otherwise we treat this as a filename */ - verify_filename(prefix, argv[i]); + verify_filename(prefix, argv[0], 1); } } + *rev_ret = rev; + + if (read_cache() < 0) + die(_("index file corrupt")); + + parse_pathspec(pathspec, 0, + PATHSPEC_PREFER_FULL | + PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP | + (patch_mode ? PATHSPEC_PREFIX_ORIGIN : 0), + prefix, argv); +} + +static int reset_refs(const char *rev, const unsigned char *sha1) +{ + int update_ref_status; + struct strbuf msg = STRBUF_INIT; + unsigned char *orig = NULL, sha1_orig[20], + *old_orig = NULL, sha1_old_orig[20]; + + if (!get_sha1("ORIG_HEAD", sha1_old_orig)) + old_orig = sha1_old_orig; + if (!get_sha1("HEAD", sha1_orig)) { + orig = sha1_orig; + set_reflog_message(&msg, "updating ORIG_HEAD", NULL); + update_ref(msg.buf, "ORIG_HEAD", orig, old_orig, 0, + UPDATE_REFS_MSG_ON_ERR); + } else if (old_orig) + delete_ref("ORIG_HEAD", old_orig, 0); + set_reflog_message(&msg, "updating HEAD", rev); + update_ref_status = update_ref(msg.buf, "HEAD", sha1, orig, 0, + UPDATE_REFS_MSG_ON_ERR); + strbuf_release(&msg); + return update_ref_status; +} - if (get_sha1(rev, sha1)) - die(_("Failed to resolve '%s' as a valid ref."), rev); +int cmd_reset(int argc, const char **argv, const char *prefix) +{ + int reset_type = NONE, update_ref_status = 0, quiet = 0; + int patch_mode = 0, unborn; + const char *rev; + struct object_id oid; + struct pathspec pathspec; + int intent_to_add = 0; + const struct option options[] = { + OPT__QUIET(&quiet, N_("be quiet, only report errors")), + OPT_SET_INT(0, "mixed", &reset_type, + N_("reset HEAD and index"), MIXED), + OPT_SET_INT(0, "soft", &reset_type, N_("reset only HEAD"), SOFT), + OPT_SET_INT(0, "hard", &reset_type, + N_("reset HEAD, index and working tree"), HARD), + OPT_SET_INT(0, "merge", &reset_type, + N_("reset HEAD, index and working tree"), MERGE), + OPT_SET_INT(0, "keep", &reset_type, + N_("reset HEAD but keep local changes"), KEEP), + OPT_BOOL('p', "patch", &patch_mode, N_("select hunks interactively")), + OPT_BOOL('N', "intent-to-add", &intent_to_add, + N_("record only the fact that removed paths will be added later")), + OPT_END() + }; - commit = lookup_commit_reference(sha1); - if (!commit) - die(_("Could not parse object '%s'."), rev); - hashcpy(sha1, commit->object.sha1); + git_config(git_default_config, NULL); + + argc = parse_options(argc, argv, prefix, options, git_reset_usage, + PARSE_OPT_KEEP_DASHDASH); + parse_args(&pathspec, argv, prefix, patch_mode, &rev); + + unborn = !strcmp(rev, "HEAD") && get_sha1("HEAD", oid.hash); + if (unborn) { + /* reset on unborn branch: treat as reset to empty tree */ + hashcpy(oid.hash, EMPTY_TREE_SHA1_BIN); + } else if (!pathspec.nr) { + struct commit *commit; + if (get_sha1_committish(rev, oid.hash)) + die(_("Failed to resolve '%s' as a valid revision."), rev); + commit = lookup_commit_reference(oid.hash); + if (!commit) + die(_("Could not parse object '%s'."), rev); + oidcpy(&oid, &commit->object.oid); + } else { + struct tree *tree; + if (get_sha1_treeish(rev, oid.hash)) + die(_("Failed to resolve '%s' as a valid tree."), rev); + tree = parse_tree_indirect(oid.hash); + if (!tree) + die(_("Could not parse object '%s'."), rev); + oidcpy(&oid, &tree->object.oid); + } if (patch_mode) { if (reset_type != NONE) die(_("--patch is incompatible with --{hard,mixed,soft}")); - return interactive_reset(rev, argv + i, prefix); + return run_add_interactive(rev, "--patch=reset", &pathspec); } /* git reset tree [--] paths... can be used to * load chosen paths from the tree into the index without * affecting the working tree nor HEAD. */ - if (i < argc) { + if (pathspec.nr) { if (reset_type == MIXED) warning(_("--mixed with paths is deprecated; use 'git reset -- <paths>' instead.")); else if (reset_type != NONE) die(_("Cannot do %s reset with paths."), _(reset_type_names[reset_type])); - return read_from_tree(prefix, argv + i, sha1, - quiet ? REFRESH_QUIET : REFRESH_IN_PORCELAIN); } if (reset_type == NONE) reset_type = MIXED; /* by default */ - if (reset_type != SOFT && reset_type != MIXED) + if (reset_type != SOFT && (reset_type != MIXED || get_git_work_tree())) setup_work_tree(); if (reset_type == MIXED && is_bare_repository()) die(_("%s reset is not allowed in a bare repository"), _(reset_type_names[reset_type])); + if (intent_to_add && reset_type != MIXED) + die(_("-N can only be used with --mixed")); + /* Soft reset does not touch the index file nor the working tree * at all, but requires them in a good order. Other resets reset * the index file to the tree object we are switching to. */ - if (reset_type == SOFT) + if (reset_type == SOFT || reset_type == KEEP) die_if_unmerged_cache(reset_type); - else { - int err; - if (reset_type == KEEP) - die_if_unmerged_cache(reset_type); - err = reset_index_file(sha1, reset_type, quiet); - if (reset_type == KEEP) - err = err || reset_index_file(sha1, MIXED, quiet); - if (err) - die(_("Could not reset index file to revision '%s'."), rev); - } - /* Any resets update HEAD to the head being switched to, - * saving the previous head in ORIG_HEAD before. */ - if (!get_sha1("ORIG_HEAD", sha1_old_orig)) - old_orig = sha1_old_orig; - if (!get_sha1("HEAD", sha1_orig)) { - orig = sha1_orig; - set_reflog_message(&msg, "updating ORIG_HEAD", NULL); - update_ref(msg.buf, "ORIG_HEAD", orig, old_orig, 0, MSG_ON_ERR); - } - else if (old_orig) - delete_ref("ORIG_HEAD", old_orig, 0); - set_reflog_message(&msg, "updating HEAD", rev); - update_ref_status = update_ref(msg.buf, "HEAD", sha1, orig, 0, MSG_ON_ERR); + if (reset_type != SOFT) { + struct lock_file *lock = xcalloc(1, sizeof(*lock)); + hold_locked_index(lock, 1); + if (reset_type == MIXED) { + int flags = quiet ? REFRESH_QUIET : REFRESH_IN_PORCELAIN; + if (read_from_tree(&pathspec, oid.hash, intent_to_add)) + return 1; + if (get_git_work_tree()) + refresh_index(&the_index, flags, NULL, NULL, + _("Unstaged changes after reset:")); + } else { + int err = reset_index(oid.hash, reset_type, quiet); + if (reset_type == KEEP && !err) + err = reset_index(oid.hash, MIXED, quiet); + if (err) + die(_("Could not reset index file to revision '%s'."), rev); + } - switch (reset_type) { - case HARD: - if (!update_ref_status && !quiet) - print_new_head_line(commit); - break; - case SOFT: /* Nothing else to do. */ - break; - case MIXED: /* Report what has not been updated. */ - update_index_refresh(0, NULL, - quiet ? REFRESH_QUIET : REFRESH_IN_PORCELAIN); - break; + if (write_locked_index(&the_index, lock, COMMIT_LOCK)) + die(_("Could not write new index file.")); } - remove_branch_state(); + if (!pathspec.nr && !unborn) { + /* Any resets without paths update HEAD to the head being + * switched to, saving the previous head in ORIG_HEAD before. */ + update_ref_status = reset_refs(rev, oid.hash); - strbuf_release(&msg); + if (reset_type == HARD && !update_ref_status && !quiet) + print_new_head_line(lookup_commit_reference(oid.hash)); + } + if (!pathspec.nr) + remove_branch_state(); return update_ref_status; } diff --git a/builtin/rev-list.c b/builtin/rev-list.c index ab3be7ca82..b82bcc3436 100644 --- a/builtin/rev-list.c +++ b/builtin/rev-list.c @@ -3,6 +3,8 @@ #include "diff.h" #include "revision.h" #include "list-objects.h" +#include "pack.h" +#include "pack-bitmap.h" #include "builtin.h" #include "log-tree.h" #include "graph.h" @@ -40,6 +42,7 @@ static const char rev_list_usage[] = " --abbrev=<n> | --no-abbrev\n" " --abbrev-commit\n" " --left-right\n" +" --count\n" " special purpose:\n" " --bisect\n" " --bisect-vars\n" @@ -52,6 +55,11 @@ static void show_commit(struct commit *commit, void *data) struct rev_list_info *info = data; struct rev_info *revs = info->revs; + if (info->flags & REV_LIST_QUIET) { + finish_commit(commit, data); + return; + } + graph_show_commit(revs->graph); if (revs->count) { @@ -73,14 +81,14 @@ static void show_commit(struct commit *commit, void *data) if (!revs->graph) fputs(get_revision_mark(revs, commit), stdout); if (revs->abbrev_commit && revs->abbrev) - fputs(find_unique_abbrev(commit->object.sha1, revs->abbrev), + fputs(find_unique_abbrev(commit->object.oid.hash, revs->abbrev), stdout); else - fputs(sha1_to_hex(commit->object.sha1), stdout); + fputs(oid_to_hex(&commit->object.oid), stdout); if (revs->print_parents) { struct commit_list *parents = commit->parents; while (parents) { - printf(" %s", sha1_to_hex(parents->item->object.sha1)); + printf(" %s", oid_to_hex(&parents->item->object.oid)); parents = parents->next; } } @@ -89,7 +97,7 @@ static void show_commit(struct commit *commit, void *data) children = lookup_decoration(&revs->children, &commit->object); while (children) { - printf(" %s", sha1_to_hex(children->item->object.sha1)); + printf(" %s", oid_to_hex(&children->item->object.oid)); children = children->next; } } @@ -99,12 +107,14 @@ static void show_commit(struct commit *commit, void *data) else putchar('\n'); - if (revs->verbose_header && commit->buffer) { + if (revs->verbose_header && get_cached_commit_buffer(commit, NULL)) { struct strbuf buf = STRBUF_INIT; struct pretty_print_context ctx = {0}; ctx.abbrev = revs->abbrev; ctx.date_mode = revs->date_mode; + ctx.date_mode_explicit = revs->date_mode_explicit; ctx.fmt = revs->commit_format; + ctx.output_encoding = get_log_output_encoding(); pretty_print_commit(&ctx, commit, &buf); if (revs->graph) { if (buf.len) { @@ -164,89 +174,30 @@ static void finish_commit(struct commit *commit, void *data) free_commit_list(commit->parents); commit->parents = NULL; } - free(commit->buffer); - commit->buffer = NULL; + free_commit_buffer(commit); } -static void finish_object(struct object *obj, - const struct name_path *path, const char *name, - void *cb_data) +static void finish_object(struct object *obj, const char *name, void *cb_data) { - if (obj->type == OBJ_BLOB && !has_sha1_file(obj->sha1)) - die("missing blob object '%s'", sha1_to_hex(obj->sha1)); + struct rev_list_info *info = cb_data; + if (obj->type == OBJ_BLOB && !has_object_file(&obj->oid)) + die("missing blob object '%s'", oid_to_hex(&obj->oid)); + if (info->revs->verify_objects && !obj->parsed && obj->type != OBJ_COMMIT) + parse_object(obj->oid.hash); } -static void show_object(struct object *obj, - const struct name_path *path, const char *component, - void *cb_data) +static void show_object(struct object *obj, const char *name, void *cb_data) { - struct rev_info *info = cb_data; - - finish_object(obj, path, component, cb_data); - if (info->verify_objects && !obj->parsed && obj->type != OBJ_COMMIT) - parse_object(obj->sha1); - show_object_with_name(stdout, obj, path, component); + struct rev_list_info *info = cb_data; + finish_object(obj, name, cb_data); + if (info->flags & REV_LIST_QUIET) + return; + show_object_with_name(stdout, obj, name); } static void show_edge(struct commit *commit) { - printf("-%s\n", sha1_to_hex(commit->object.sha1)); -} - -static inline int log2i(int n) -{ - int log2 = 0; - - for (; n > 1; n >>= 1) - log2++; - - return log2; -} - -static inline int exp2i(int n) -{ - return 1 << n; -} - -/* - * Estimate the number of bisect steps left (after the current step) - * - * For any x between 0 included and 2^n excluded, the probability for - * n - 1 steps left looks like: - * - * P(2^n + x) == (2^n - x) / (2^n + x) - * - * and P(2^n + x) < 0.5 means 2^n < 3x - */ -int estimate_bisect_steps(int all) -{ - int n, x, e; - - if (all < 3) - return 0; - - n = log2i(all); - e = exp2i(n); - x = all - e; - - return (e < 3 * x) ? n : n - 1; -} - -void print_commit_list(struct commit_list *list, - const char *format_cur, - const char *format_last) -{ - for ( ; list; list = list->next) { - const char *format = list->next ? format_cur : format_last; - printf(format, sha1_to_hex(list->item->object.sha1)); - } -} - -static void show_tried_revs(struct commit_list *tried) -{ - printf("bisect_tried='"); - print_commit_list(tried, "%s|", "%s"); - printf("'\n"); + printf("-%s\n", oid_to_hex(&commit->object.oid)); } static void print_var_str(const char *var, const char *val) @@ -261,12 +212,12 @@ static void print_var_int(const char *var, int val) static int show_bisect_vars(struct rev_list_info *info, int reaches, int all) { - int cnt, flags = info->bisect_show_flags; - char hex[41] = ""; + int cnt, flags = info->flags; + char hex[GIT_SHA1_HEXSZ + 1] = ""; struct commit_list *tried; struct rev_info *revs = info->revs; - if (!revs->commits && !(flags & BISECT_SHOW_TRIED)) + if (!revs->commits) return 1; revs->commits = filter_skipped(revs->commits, &tried, @@ -287,16 +238,13 @@ static int show_bisect_vars(struct rev_list_info *info, int reaches, int all) cnt = reaches; if (revs->commits) - strcpy(hex, sha1_to_hex(revs->commits->item->object.sha1)); + sha1_to_hex_r(hex, revs->commits->item->object.oid.hash); if (flags & BISECT_SHOW_ALL) { traverse_commit_list(revs, show_commit, show_object, info); printf("------\n"); } - if (flags & BISECT_SHOW_TRIED) - show_tried_revs(tried); - print_var_str("bisect_rev", hex); print_var_int("bisect_nr", cnt - 1); print_var_int("bisect_good", all - reaches - 1); @@ -307,6 +255,18 @@ static int show_bisect_vars(struct rev_list_info *info, int reaches, int all) return 0; } +static int show_object_fast( + const unsigned char *sha1, + enum object_type type, + int exclude, + uint32_t name_hash, + struct packed_git *found_pack, + off_t found_offset) +{ + fprintf(stdout, "%s\n", sha1_to_hex(sha1)); + return 1; +} + int cmd_rev_list(int argc, const char **argv, const char *prefix) { struct rev_info revs; @@ -315,7 +275,7 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix) int bisect_list = 0; int bisect_show_vars = 0; int bisect_find_all = 0; - int quiet = 0; + int use_bitmap_index = 0; git_config(git_default_config, NULL); init_revisions(&revs, prefix); @@ -328,7 +288,8 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix) if (revs.bisect) bisect_list = 1; - quiet = DIFF_OPT_TST(&revs.diffopt, QUICK); + if (DIFF_OPT_TST(&revs.diffopt, QUICK)) + info.flags |= REV_LIST_QUIET; for (i = 1 ; i < argc; i++) { const char *arg = argv[i]; @@ -347,7 +308,7 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix) if (!strcmp(arg, "--bisect-all")) { bisect_list = 1; bisect_find_all = 1; - info.bisect_show_flags = BISECT_SHOW_ALL; + info.flags |= BISECT_SHOW_ALL; revs.show_decorations = 1; continue; } @@ -356,6 +317,14 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix) bisect_show_vars = 1; continue; } + if (!strcmp(arg, "--use-bitmap-index")) { + use_bitmap_index = 1; + continue; + } + if (!strcmp(arg, "--test-bitmap")) { + test_bitmap_walk(&revs); + return 0; + } usage(rev_list_usage); } @@ -372,21 +341,44 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix) revs.commit_format = CMIT_FMT_RAW; if ((!revs.commits && - (!(revs.tag_objects||revs.tree_objects||revs.blob_objects) && + (!(revs.tag_objects || revs.tree_objects || revs.blob_objects) && !revs.pending.nr)) || revs.diff) usage(rev_list_usage); + if (revs.show_notes) + die(_("rev-list does not support display of notes")); + save_commit_buffer = (revs.verbose_header || revs.grep_filter.pattern_list || revs.grep_filter.header_list); if (bisect_list) revs.limited = 1; + if (use_bitmap_index && !revs.prune) { + if (revs.count && !revs.left_right && !revs.cherry_mark) { + uint32_t commit_count; + int max_count = revs.max_count; + if (!prepare_bitmap_walk(&revs)) { + count_bitmap_commit_list(&commit_count, NULL, NULL, NULL); + if (max_count >= 0 && max_count < commit_count) + commit_count = max_count; + printf("%d\n", commit_count); + return 0; + } + } else if (revs.max_count < 0 && + revs.tag_objects && revs.tree_objects && revs.blob_objects) { + if (!prepare_bitmap_walk(&revs)) { + traverse_bitmap_commit_list(&show_object_fast); + return 0; + } + } + } + if (prepare_revision_walk(&revs)) die("revision walk setup failed"); if (revs.tree_objects) - mark_edges_uninteresting(revs.commits, &revs, show_edge); + mark_edges_uninteresting(&revs, show_edge); if (bisect_list) { int reaches = reaches, all = all; @@ -398,10 +390,7 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix) return show_bisect_vars(&info, reaches, all); } - traverse_commit_list(&revs, - quiet ? finish_commit : show_commit, - quiet ? finish_object : show_object, - &info); + traverse_commit_list(&revs, show_commit, show_object, &info); if (revs.count) { if (revs.left_right && revs.cherry_mark) diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c index 98d1cbecca..c961b74c5a 100644 --- a/builtin/rev-parse.c +++ b/builtin/rev-parse.c @@ -9,6 +9,9 @@ #include "quote.h" #include "builtin.h" #include "parse-options.h" +#include "diff.h" +#include "revision.h" +#include "split-index.h" #define DO_REVS 1 #define DO_NOREV 2 @@ -30,6 +33,9 @@ static int abbrev_ref; static int abbrev_ref_strict; static int output_sq; +static int stuck_long; +static struct string_list *ref_excludes; + /* * Some arguments are relevant "revision" arguments, * others are about output format or other details. @@ -145,6 +151,7 @@ static void show_rev(int type, const unsigned char *sha1, const char *name) error("refname '%s' is ambiguous", name); break; } + free(full); } else { show_with_type(type, name); } @@ -183,15 +190,23 @@ static int show_default(void) return 0; } -static int show_reference(const char *refname, const unsigned char *sha1, int flag, void *cb_data) +static int show_reference(const char *refname, const struct object_id *oid, int flag, void *cb_data) { - show_rev(NORMAL, sha1, refname); + if (ref_excluded(ref_excludes, refname)) + return 0; + show_rev(NORMAL, oid->hash, refname); return 0; } -static int anti_reference(const char *refname, const unsigned char *sha1, int flag, void *cb_data) +static int anti_reference(const char *refname, const struct object_id *oid, int flag, void *cb_data) { - show_rev(REVERSED, sha1, refname); + show_rev(REVERSED, oid->hash, refname); + return 0; +} + +static int show_abbrev(const unsigned char *sha1, void *cb_data) +{ + show_rev(NORMAL, sha1, NULL); return 0; } @@ -206,11 +221,17 @@ static void show_datestring(const char *flag, const char *datestr) show(buffer); } -static int show_file(const char *arg) +static int show_file(const char *arg, int output_prefix) { show_default(); if ((filter & (DO_NONFLAGS|DO_NOREV)) == (DO_NONFLAGS|DO_NOREV)) { - show(arg); + if (output_prefix) { + const char *prefix = startup_info->prefix; + show(prefix_filename(prefix, + prefix ? strlen(prefix) : 0, + arg)); + } else + show(arg); return 1; } return 0; @@ -224,6 +245,7 @@ static int try_difference(const char *arg) const char *next; const char *this; int symmetric; + static const char head_by_default[] = "HEAD"; if (!(dotdot = strstr(arg, ".."))) return 0; @@ -235,10 +257,21 @@ static int try_difference(const char *arg) next += symmetric; if (!*next) - next = "HEAD"; + next = head_by_default; if (dotdot == arg) - this = "HEAD"; - if (!get_sha1(this, sha1) && !get_sha1(next, end)) { + this = head_by_default; + + if (this == head_by_default && next == head_by_default && + !symmetric) { + /* + * Just ".."? That is not a range but the + * pathspec for the parent directory. + */ + *dotdot = '.'; + return 0; + } + + if (!get_sha1_committish(this, sha1) && !get_sha1_committish(next, end)) { show_rev(NORMAL, end, next); show_rev(symmetric ? NORMAL : REVERSED, sha1, this); if (symmetric) { @@ -246,15 +279,13 @@ static int try_difference(const char *arg) struct commit *a, *b; a = lookup_commit_reference(sha1); b = lookup_commit_reference(end); - exclude = get_merge_bases(a, b, 1); + exclude = get_merge_bases(a, b); while (exclude) { - struct commit_list *n = exclude->next; - show_rev(REVERSED, - exclude->item->object.sha1,NULL); - free(exclude); - exclude = n; + struct commit *commit = pop_commit(&exclude); + show_rev(REVERSED, commit->object.oid.hash, NULL); } } + *dotdot = '.'; return 1; } *dotdot = '.'; @@ -278,16 +309,19 @@ static int try_parent_shorthands(const char *arg) return 0; *dotdot = 0; - if (get_sha1(arg, sha1)) + if (get_sha1_committish(arg, sha1)) { + *dotdot = '^'; return 0; + } if (!parents_only) show_rev(NORMAL, sha1, arg); commit = lookup_commit_reference(sha1); for (parents = commit->parents; parents; parents = parents->next) show_rev(parents_only ? NORMAL : REVERSED, - parents->item->object.sha1, arg); + parents->item->object.oid.hash, arg); + *dotdot = '^'; return 1; } @@ -296,12 +330,15 @@ static int parseopt_dump(const struct option *o, const char *arg, int unset) struct strbuf *parsed = o->value; if (unset) strbuf_addf(parsed, " --no-%s", o->long_name); - else if (o->short_name) + else if (o->short_name && (o->long_name == NULL || !stuck_long)) strbuf_addf(parsed, " -%c", o->short_name); else strbuf_addf(parsed, " --%s", o->long_name); if (arg) { - strbuf_addch(parsed, ' '); + if (!stuck_long) + strbuf_addch(parsed, ' '); + else if (o->long_name) + strbuf_addch(parsed, '='); sq_quote_buf(parsed, arg); } return 0; @@ -318,17 +355,20 @@ static int cmd_parseopt(int argc, const char **argv, const char *prefix) { static int keep_dashdash = 0, stop_at_non_option = 0; static char const * const parseopt_usage[] = { - "git rev-parse --parseopt [options] -- [<args>...]", + N_("git rev-parse --parseopt [<options>] -- [<args>...]"), NULL }; static struct option parseopt_opts[] = { - OPT_BOOLEAN(0, "keep-dashdash", &keep_dashdash, - "keep the `--` passed as an arg"), - OPT_BOOLEAN(0, "stop-at-non-option", &stop_at_non_option, - "stop parsing after the " - "first non-option argument"), + OPT_BOOL(0, "keep-dashdash", &keep_dashdash, + N_("keep the `--` passed as an arg")), + OPT_BOOL(0, "stop-at-non-option", &stop_at_non_option, + N_("stop parsing after the " + "first non-option argument")), + OPT_BOOL(0, "stuck-long", &stuck_long, + N_("output in stuck long form")), OPT_END(), }; + static const char * const flag_chars = "*=?!"; struct strbuf sb = STRBUF_INIT, parsed = STRBUF_INIT; const char **usage = NULL; @@ -343,7 +383,7 @@ static int cmd_parseopt(int argc, const char **argv, const char *prefix) /* get the usage up to the first line with a -- on it */ for (;;) { - if (strbuf_getline(&sb, stdin, '\n') == EOF) + if (strbuf_getline(&sb, stdin) == EOF) die("premature end of input"); ALLOC_GROW(usage, unb + 1, usz); if (!strcmp("--", sb.buf)) { @@ -355,9 +395,10 @@ static int cmd_parseopt(int argc, const char **argv, const char *prefix) usage[unb++] = strbuf_detach(&sb, NULL); } - /* parse: (<short>|<short>,<long>|<long>)[=?]? SP+ <help> */ - while (strbuf_getline(&sb, stdin, '\n') != EOF) { + /* parse: (<short>|<short>,<long>|<long>)[*=?!]*<arghint>? SP+ <help> */ + while (strbuf_getline(&sb, stdin) != EOF) { const char *s; + const char *help; struct option *o; if (!sb.len) @@ -367,44 +408,56 @@ static int cmd_parseopt(int argc, const char **argv, const char *prefix) memset(opts + onb, 0, sizeof(opts[onb])); o = &opts[onb++]; - s = strchr(sb.buf, ' '); - if (!s || *sb.buf == ' ') { + help = strchr(sb.buf, ' '); + if (!help || *sb.buf == ' ') { o->type = OPTION_GROUP; o->help = xstrdup(skipspaces(sb.buf)); continue; } o->type = OPTION_CALLBACK; - o->help = xstrdup(skipspaces(s)); + o->help = xstrdup(skipspaces(help)); o->value = &parsed; o->flags = PARSE_OPT_NOARG; o->callback = &parseopt_dump; - while (s > sb.buf && strchr("*=?!", s[-1])) { - switch (*--s) { + + /* name(s) */ + s = strpbrk(sb.buf, flag_chars); + if (s == NULL) + s = help; + + if (s - sb.buf == 1) /* short option only */ + o->short_name = *sb.buf; + else if (sb.buf[1] != ',') /* long option only */ + o->long_name = xmemdupz(sb.buf, s - sb.buf); + else { + o->short_name = *sb.buf; + o->long_name = xmemdupz(sb.buf + 2, s - sb.buf - 2); + } + + /* flags */ + while (s < help) { + switch (*s++) { case '=': o->flags &= ~PARSE_OPT_NOARG; - break; + continue; case '?': o->flags &= ~PARSE_OPT_NOARG; o->flags |= PARSE_OPT_OPTARG; - break; + continue; case '!': o->flags |= PARSE_OPT_NONEG; - break; + continue; case '*': o->flags |= PARSE_OPT_HIDDEN; - break; + continue; } + s--; + break; } - if (s - sb.buf == 1) /* short option only */ - o->short_name = *sb.buf; - else if (sb.buf[1] != ',') /* long option only */ - o->long_name = xmemdupz(sb.buf, s - sb.buf); - else { - o->short_name = *sb.buf; - o->long_name = xmemdupz(sb.buf + 2, s - sb.buf - 2); - } + if (s < help) + o->argh = xmemdupz(s, help - s); } strbuf_release(&sb); @@ -443,17 +496,22 @@ static void die_no_single_rev(int quiet) } static const char builtin_rev_parse_usage[] = -"git rev-parse --parseopt [options] -- [<args>...]\n" -" or: git rev-parse --sq-quote [<arg>...]\n" -" or: git rev-parse [options] [<arg>...]\n" -"\n" -"Run \"git rev-parse --parseopt -h\" for more information on the first usage."; +N_("git rev-parse --parseopt [<options>] -- [<args>...]\n" + " or: git rev-parse --sq-quote [<arg>...]\n" + " or: git rev-parse [<options>] [<arg>...]\n" + "\n" + "Run \"git rev-parse --parseopt -h\" for more information on the first usage."); int cmd_rev_parse(int argc, const char **argv, const char *prefix) { int i, as_is = 0, verify = 0, quiet = 0, revs_count = 0, type = 0; + int did_repo_setup = 0; + int has_dashdash = 0; + int output_prefix = 0; unsigned char sha1[20]; + unsigned int flags = 0; const char *name = NULL; + struct object_context unused; if (argc > 1 && !strcmp("--parseopt", argv[1])) return cmd_parseopt(argc - 1, argv + 1, prefix); @@ -461,32 +519,60 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) if (argc > 1 && !strcmp("--sq-quote", argv[1])) return cmd_sq_quote(argc - 2, argv + 2); - if (argc == 2 && !strcmp("--local-env-vars", argv[1])) { - int i; - for (i = 0; local_repo_env[i]; i++) - printf("%s\n", local_repo_env[i]); - return 0; + if (argc > 1 && !strcmp("-h", argv[1])) + usage(builtin_rev_parse_usage); + + for (i = 1; i < argc; i++) { + if (!strcmp(argv[i], "--")) { + has_dashdash = 1; + break; + } } - if (argc > 2 && !strcmp(argv[1], "--resolve-git-dir")) { - const char *gitdir = resolve_gitdir(argv[2]); - if (!gitdir) - die("not a gitdir '%s'", argv[2]); - puts(gitdir); + /* No options; just report on whether we're in a git repo or not. */ + if (argc == 1) { + setup_git_directory(); + git_config(git_default_config, NULL); return 0; } - if (argc > 1 && !strcmp("-h", argv[1])) - usage(builtin_rev_parse_usage); - - prefix = setup_git_directory(); - git_config(git_default_config, NULL); for (i = 1; i < argc; i++) { const char *arg = argv[i]; + if (!strcmp(arg, "--local-env-vars")) { + int i; + for (i = 0; local_repo_env[i]; i++) + printf("%s\n", local_repo_env[i]); + continue; + } + if (!strcmp(arg, "--resolve-git-dir")) { + const char *gitdir = argv[++i]; + if (!gitdir) + die("--resolve-git-dir requires an argument"); + gitdir = resolve_gitdir(gitdir); + if (!gitdir) + die("not a gitdir '%s'", argv[i]); + puts(gitdir); + continue; + } + + /* The rest of the options require a git repository. */ + if (!did_repo_setup) { + prefix = setup_git_directory(); + git_config(git_default_config, NULL); + did_repo_setup = 1; + } + + if (!strcmp(arg, "--git-path")) { + if (!argv[i + 1]) + die("--git-path requires an argument"); + puts(git_path("%s", argv[i + 1])); + i++; + continue; + } if (as_is) { - if (show_file(arg) && as_is < 2) - verify_filename(prefix, arg); + if (show_file(arg, output_prefix) && as_is < 2) + verify_filename(prefix, arg, 0); continue; } if (!strcmp(arg,"-n")) { @@ -498,7 +584,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) } continue; } - if (!prefixcmp(arg, "-n")) { + if (starts_with(arg, "-n")) { if ((filter & DO_FLAGS) && (filter & DO_REVS)) show(arg); continue; @@ -509,12 +595,21 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) as_is = 2; /* Pass on the "--" if we show anything but files.. */ if (filter & (DO_FLAGS | DO_REVS)) - show_file(arg); + show_file(arg, 0); continue; } if (!strcmp(arg, "--default")) { - def = argv[i+1]; - i++; + def = argv[++i]; + if (!def) + die("--default requires an argument"); + continue; + } + if (!strcmp(arg, "--prefix")) { + prefix = argv[++i]; + if (!prefix) + die("--prefix requires an argument"); + startup_info->prefix = prefix; + output_prefix = 1; continue; } if (!strcmp(arg, "--revs-only")) { @@ -540,10 +635,11 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) } if (!strcmp(arg, "--quiet") || !strcmp(arg, "-q")) { quiet = 1; + flags |= GET_SHA1_QUIETLY; continue; } if (!strcmp(arg, "--short") || - !prefixcmp(arg, "--short=")) { + starts_with(arg, "--short=")) { filter &= ~(DO_FLAGS|DO_NOREV); verify = 1; abbrev = DEFAULT_ABBREV; @@ -571,7 +667,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) symbolic = SHOW_SYMBOLIC_FULL; continue; } - if (!prefixcmp(arg, "--abbrev-ref") && + if (starts_with(arg, "--abbrev-ref") && (!arg[12] || arg[12] == '=')) { abbrev_ref = 1; abbrev_ref_strict = warn_ambiguous_refs; @@ -589,40 +685,55 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) for_each_ref(show_reference, NULL); continue; } + if (starts_with(arg, "--disambiguate=")) { + for_each_abbrev(arg + 15, show_abbrev, NULL); + continue; + } if (!strcmp(arg, "--bisect")) { for_each_ref_in("refs/bisect/bad", show_reference, NULL); for_each_ref_in("refs/bisect/good", anti_reference, NULL); continue; } - if (!prefixcmp(arg, "--branches=")) { + if (starts_with(arg, "--branches=")) { for_each_glob_ref_in(show_reference, arg + 11, "refs/heads/", NULL); + clear_ref_exclusion(&ref_excludes); continue; } if (!strcmp(arg, "--branches")) { for_each_branch_ref(show_reference, NULL); + clear_ref_exclusion(&ref_excludes); continue; } - if (!prefixcmp(arg, "--tags=")) { + if (starts_with(arg, "--tags=")) { for_each_glob_ref_in(show_reference, arg + 7, "refs/tags/", NULL); + clear_ref_exclusion(&ref_excludes); continue; } if (!strcmp(arg, "--tags")) { for_each_tag_ref(show_reference, NULL); + clear_ref_exclusion(&ref_excludes); continue; } - if (!prefixcmp(arg, "--glob=")) { + if (starts_with(arg, "--glob=")) { for_each_glob_ref(show_reference, arg + 7, NULL); + clear_ref_exclusion(&ref_excludes); continue; } - if (!prefixcmp(arg, "--remotes=")) { + if (starts_with(arg, "--remotes=")) { for_each_glob_ref_in(show_reference, arg + 10, "refs/remotes/", NULL); + clear_ref_exclusion(&ref_excludes); continue; } if (!strcmp(arg, "--remotes")) { for_each_remote_ref(show_reference, NULL); + clear_ref_exclusion(&ref_excludes); + continue; + } + if (starts_with(arg, "--exclude=")) { + add_ref_exclusion(&ref_excludes, arg + 10); continue; } if (!strcmp(arg, "--show-toplevel")) { @@ -634,6 +745,8 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) if (!strcmp(arg, "--show-prefix")) { if (prefix) puts(prefix); + else + putchar('\n'); continue; } if (!strcmp(arg, "--show-cdup")) { @@ -657,7 +770,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) } if (!strcmp(arg, "--git-dir")) { const char *gitdir = getenv(GIT_DIR_ENVIRONMENT); - static char cwd[PATH_MAX]; + char *cwd; int len; if (gitdir) { puts(gitdir); @@ -667,10 +780,15 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) puts(".git"); continue; } - if (!getcwd(cwd, PATH_MAX)) - die_errno("unable to get current working directory"); + cwd = xgetcwd(); len = strlen(cwd); printf("%s%s.git\n", cwd, len && cwd[len-1] != '/' ? "/" : ""); + free(cwd); + continue; + } + if (!strcmp(arg, "--git-common-dir")) { + const char *pfx = prefix ? prefix : ""; + puts(prefix_filename(pfx, strlen(pfx), get_git_common_dir())); continue; } if (!strcmp(arg, "--is-inside-git-dir")) { @@ -688,19 +806,28 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) : "false"); continue; } - if (!prefixcmp(arg, "--since=")) { + if (!strcmp(arg, "--shared-index-path")) { + if (read_cache() < 0) + die(_("Could not read the index")); + if (the_index.split_index) { + const unsigned char *sha1 = the_index.split_index->base_sha1; + puts(git_path("sharedindex.%s", sha1_to_hex(sha1))); + } + continue; + } + if (starts_with(arg, "--since=")) { show_datestring("--max-age=", arg+8); continue; } - if (!prefixcmp(arg, "--after=")) { + if (starts_with(arg, "--after=")) { show_datestring("--max-age=", arg+8); continue; } - if (!prefixcmp(arg, "--before=")) { + if (starts_with(arg, "--before=")) { show_datestring("--min-age=", arg+9); continue; } - if (!prefixcmp(arg, "--until=")) { + if (starts_with(arg, "--until=")) { show_datestring("--min-age=", arg+8); continue; } @@ -720,7 +847,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) name++; type = REVERSED; } - if (!get_sha1(name, sha1)) { + if (!get_sha1_with_context(name, flags, sha1, &unused)) { if (verify) revs_count++; else @@ -729,10 +856,12 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) } if (verify) die_no_single_rev(quiet); + if (has_dashdash) + die("bad revision '%s'", arg); as_is = 1; - if (!show_file(arg)) + if (!show_file(arg, output_prefix)) continue; - verify_filename(prefix, arg); + verify_filename(prefix, arg, 1); } if (verify) { if (revs_count == 1) { diff --git a/builtin/revert.c b/builtin/revert.c index fce3f92981..56a2c36669 100644 --- a/builtin/revert.c +++ b/builtin/revert.c @@ -1,18 +1,9 @@ #include "cache.h" #include "builtin.h" -#include "object.h" -#include "commit.h" -#include "tag.h" -#include "run-command.h" -#include "exec_cmd.h" -#include "utf8.h" #include "parse-options.h" -#include "cache-tree.h" #include "diff.h" #include "revision.h" #include "rerere.h" -#include "merge-recursive.h" -#include "refs.h" #include "dir.h" #include "sequencer.h" @@ -28,60 +19,25 @@ */ static const char * const revert_usage[] = { - "git revert [options] <commit-ish>", - "git revert <subcommand>", + N_("git revert [<options>] <commit-ish>..."), + N_("git revert <subcommand>"), NULL }; static const char * const cherry_pick_usage[] = { - "git cherry-pick [options] <commit-ish>", - "git cherry-pick <subcommand>", + N_("git cherry-pick [<options>] <commit-ish>..."), + N_("git cherry-pick <subcommand>"), NULL }; -enum replay_action { REVERT, CHERRY_PICK }; -enum replay_subcommand { - REPLAY_NONE, - REPLAY_REMOVE_STATE, - REPLAY_CONTINUE, - REPLAY_ROLLBACK -}; - -struct replay_opts { - enum replay_action action; - enum replay_subcommand subcommand; - - /* Boolean options */ - int edit; - int record_origin; - int no_commit; - int signoff; - int allow_ff; - int allow_rerere_auto; - - int mainline; - - /* Merge strategy */ - const char *strategy; - const char **xopts; - size_t xopts_nr, xopts_alloc; - - /* Only used by REPLAY_NONE */ - struct rev_info *revs; -}; - -#define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION" - static const char *action_name(const struct replay_opts *opts) { - return opts->action == REVERT ? "revert" : "cherry-pick"; + return opts->action == REPLAY_REVERT ? "revert" : "cherry-pick"; } -static char *get_encoding(const char *message); - static const char * const *revert_or_cherry_pick_usage(struct replay_opts *opts) { - return opts->action == REVERT ? revert_usage : cherry_pick_usage; + return opts->action == REPLAY_REVERT ? revert_usage : cherry_pick_usage; } static int option_parse_x(const struct option *opt, @@ -98,6 +54,7 @@ static int option_parse_x(const struct option *opt, return 0; } +LAST_ARG_MUST_BE_NULL static void verify_opt_compatible(const char *me, const char *base_opt, ...) { const char *this_opt; @@ -114,56 +71,41 @@ static void verify_opt_compatible(const char *me, const char *base_opt, ...) die(_("%s: %s cannot be used with %s"), me, this_opt, base_opt); } -static void verify_opt_mutually_compatible(const char *me, ...) -{ - const char *opt1, *opt2 = NULL; - va_list ap; - - va_start(ap, me); - while ((opt1 = va_arg(ap, const char *))) { - if (va_arg(ap, int)) - break; - } - if (opt1) { - while ((opt2 = va_arg(ap, const char *))) { - if (va_arg(ap, int)) - break; - } - } - - if (opt1 && opt2) - die(_("%s: %s cannot be used with %s"), me, opt1, opt2); -} - static void parse_args(int argc, const char **argv, struct replay_opts *opts) { const char * const * usage_str = revert_or_cherry_pick_usage(opts); const char *me = action_name(opts); - int remove_state = 0; - int contin = 0; - int rollback = 0; + int cmd = 0; struct option options[] = { - OPT_BOOLEAN(0, "quit", &remove_state, "end revert or cherry-pick sequence"), - OPT_BOOLEAN(0, "continue", &contin, "resume revert or cherry-pick sequence"), - OPT_BOOLEAN(0, "abort", &rollback, "cancel revert or cherry-pick sequence"), - OPT_BOOLEAN('n', "no-commit", &opts->no_commit, "don't automatically commit"), - OPT_BOOLEAN('e', "edit", &opts->edit, "edit the commit message"), + OPT_CMDMODE(0, "quit", &cmd, N_("end revert or cherry-pick sequence"), 'q'), + OPT_CMDMODE(0, "continue", &cmd, N_("resume revert or cherry-pick sequence"), 'c'), + OPT_CMDMODE(0, "abort", &cmd, N_("cancel revert or cherry-pick sequence"), 'a'), + OPT_BOOL('n', "no-commit", &opts->no_commit, N_("don't automatically commit")), + OPT_BOOL('e', "edit", &opts->edit, N_("edit the commit message")), OPT_NOOP_NOARG('r', NULL), - OPT_BOOLEAN('s', "signoff", &opts->signoff, "add Signed-off-by:"), - OPT_INTEGER('m', "mainline", &opts->mainline, "parent number"), + OPT_BOOL('s', "signoff", &opts->signoff, N_("add Signed-off-by:")), + OPT_INTEGER('m', "mainline", &opts->mainline, N_("parent number")), OPT_RERERE_AUTOUPDATE(&opts->allow_rerere_auto), - OPT_STRING(0, "strategy", &opts->strategy, "strategy", "merge strategy"), - OPT_CALLBACK('X', "strategy-option", &opts, "option", - "option for merge strategy", option_parse_x), + OPT_STRING(0, "strategy", &opts->strategy, N_("strategy"), N_("merge strategy")), + OPT_CALLBACK('X', "strategy-option", &opts, N_("option"), + N_("option for merge strategy"), option_parse_x), + { OPTION_STRING, 'S', "gpg-sign", &opts->gpg_sign, N_("key-id"), + N_("GPG sign commit"), PARSE_OPT_OPTARG, NULL, (intptr_t) "" }, + OPT_END(), + OPT_END(), + OPT_END(), OPT_END(), OPT_END(), OPT_END(), }; - if (opts->action == CHERRY_PICK) { + if (opts->action == REPLAY_PICK) { struct option cp_extra[] = { - OPT_BOOLEAN('x', NULL, &opts->record_origin, "append commit name"), - OPT_BOOLEAN(0, "ff", &opts->allow_ff, "allow fast-forward"), + OPT_BOOL('x', NULL, &opts->record_origin, N_("append commit name")), + OPT_BOOL(0, "ff", &opts->allow_ff, N_("allow fast-forward")), + OPT_BOOL(0, "allow-empty", &opts->allow_empty, N_("preserve initially empty commits")), + OPT_BOOL(0, "allow-empty-message", &opts->allow_empty_message, N_("allow commits with empty messages")), + OPT_BOOL(0, "keep-redundant-commits", &opts->keep_redundant_commits, N_("keep redundant, empty commits")), OPT_END(), }; if (parse_options_concat(options, ARRAY_SIZE(options), cp_extra)) @@ -174,19 +116,16 @@ static void parse_args(int argc, const char **argv, struct replay_opts *opts) PARSE_OPT_KEEP_ARGV0 | PARSE_OPT_KEEP_UNKNOWN); - /* Check for incompatible subcommands */ - verify_opt_mutually_compatible(me, - "--quit", remove_state, - "--continue", contin, - "--abort", rollback, - NULL); + /* implies allow_empty */ + if (opts->keep_redundant_commits) + opts->allow_empty = 1; /* Set the subcommand */ - if (remove_state) + if (cmd == 'q') opts->subcommand = REPLAY_REMOVE_STATE; - else if (contin) + else if (cmd == 'c') opts->subcommand = REPLAY_CONTINUE; - else if (rollback) + else if (cmd == 'a') opts->subcommand = REPLAY_ROLLBACK; else opts->subcommand = REPLAY_NONE; @@ -225,912 +164,23 @@ static void parse_args(int argc, const char **argv, struct replay_opts *opts) if (opts->subcommand != REPLAY_NONE) { opts->revs = NULL; } else { + struct setup_revision_opt s_r_opt; opts->revs = xmalloc(sizeof(*opts->revs)); init_revisions(opts->revs, NULL); - opts->revs->no_walk = 1; + opts->revs->no_walk = REVISION_WALK_NO_WALK_UNSORTED; if (argc < 2) usage_with_options(usage_str, options); - argc = setup_revisions(argc, argv, opts->revs, NULL); + if (!strcmp(argv[1], "-")) + argv[1] = "@{-1}"; + memset(&s_r_opt, 0, sizeof(s_r_opt)); + s_r_opt.assume_dashdash = 1; + argc = setup_revisions(argc, argv, opts->revs, &s_r_opt); } if (argc > 1) usage_with_options(usage_str, options); } -struct commit_message { - char *parent_label; - const char *label; - const char *subject; - char *reencoded_message; - const char *message; -}; - -static int get_message(struct commit *commit, struct commit_message *out) -{ - const char *encoding; - const char *abbrev, *subject; - int abbrev_len, subject_len; - char *q; - - if (!commit->buffer) - return -1; - encoding = get_encoding(commit->buffer); - if (!encoding) - encoding = "UTF-8"; - if (!git_commit_encoding) - git_commit_encoding = "UTF-8"; - - out->reencoded_message = NULL; - out->message = commit->buffer; - if (strcmp(encoding, git_commit_encoding)) - out->reencoded_message = reencode_string(commit->buffer, - git_commit_encoding, encoding); - if (out->reencoded_message) - out->message = out->reencoded_message; - - abbrev = find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV); - abbrev_len = strlen(abbrev); - - subject_len = find_commit_subject(out->message, &subject); - - out->parent_label = xmalloc(strlen("parent of ") + abbrev_len + - strlen("... ") + subject_len + 1); - q = out->parent_label; - q = mempcpy(q, "parent of ", strlen("parent of ")); - out->label = q; - q = mempcpy(q, abbrev, abbrev_len); - q = mempcpy(q, "... ", strlen("... ")); - out->subject = q; - q = mempcpy(q, subject, subject_len); - *q = '\0'; - return 0; -} - -static void free_message(struct commit_message *msg) -{ - free(msg->parent_label); - free(msg->reencoded_message); -} - -static char *get_encoding(const char *message) -{ - const char *p = message, *eol; - - while (*p && *p != '\n') { - for (eol = p + 1; *eol && *eol != '\n'; eol++) - ; /* do nothing */ - if (!prefixcmp(p, "encoding ")) { - char *result = xmalloc(eol - 8 - p); - strlcpy(result, p + 9, eol - 8 - p); - return result; - } - p = eol; - if (*p == '\n') - p++; - } - return NULL; -} - -static void write_cherry_pick_head(struct commit *commit, const char *pseudoref) -{ - const char *filename; - int fd; - struct strbuf buf = STRBUF_INIT; - - strbuf_addf(&buf, "%s\n", sha1_to_hex(commit->object.sha1)); - - filename = git_path("%s", pseudoref); - fd = open(filename, O_WRONLY | O_CREAT, 0666); - if (fd < 0) - die_errno(_("Could not open '%s' for writing"), filename); - if (write_in_full(fd, buf.buf, buf.len) != buf.len || close(fd)) - die_errno(_("Could not write to '%s'"), filename); - strbuf_release(&buf); -} - -static void print_advice(int show_hint) -{ - char *msg = getenv("GIT_CHERRY_PICK_HELP"); - - if (msg) { - fprintf(stderr, "%s\n", msg); - /* - * A conflict has occured but the porcelain - * (typically rebase --interactive) wants to take care - * of the commit itself so remove CHERRY_PICK_HEAD - */ - unlink(git_path("CHERRY_PICK_HEAD")); - return; - } - - if (show_hint) { - advise("after resolving the conflicts, mark the corrected paths"); - advise("with 'git add <paths>' or 'git rm <paths>'"); - advise("and commit the result with 'git commit'"); - } -} - -static void write_message(struct strbuf *msgbuf, const char *filename) -{ - static struct lock_file msg_file; - - int msg_fd = hold_lock_file_for_update(&msg_file, filename, - LOCK_DIE_ON_ERROR); - if (write_in_full(msg_fd, msgbuf->buf, msgbuf->len) < 0) - die_errno(_("Could not write to %s"), filename); - strbuf_release(msgbuf); - if (commit_lock_file(&msg_file) < 0) - die(_("Error wrapping up %s"), filename); -} - -static struct tree *empty_tree(void) -{ - return lookup_tree((const unsigned char *)EMPTY_TREE_SHA1_BIN); -} - -static int error_dirty_index(struct replay_opts *opts) -{ - if (read_cache_unmerged()) - return error_resolve_conflict(action_name(opts)); - - /* Different translation strings for cherry-pick and revert */ - if (opts->action == CHERRY_PICK) - error(_("Your local changes would be overwritten by cherry-pick.")); - else - error(_("Your local changes would be overwritten by revert.")); - - if (advice_commit_before_merge) - advise(_("Commit your changes or stash them to proceed.")); - return -1; -} - -static int fast_forward_to(const unsigned char *to, const unsigned char *from) -{ - struct ref_lock *ref_lock; - - read_cache(); - if (checkout_fast_forward(from, to)) - exit(1); /* the callee should have complained already */ - ref_lock = lock_any_ref_for_update("HEAD", from, 0); - return write_ref_sha1(ref_lock, to, "cherry-pick"); -} - -static int do_recursive_merge(struct commit *base, struct commit *next, - const char *base_label, const char *next_label, - unsigned char *head, struct strbuf *msgbuf, - struct replay_opts *opts) -{ - struct merge_options o; - struct tree *result, *next_tree, *base_tree, *head_tree; - int clean, index_fd; - const char **xopt; - static struct lock_file index_lock; - - index_fd = hold_locked_index(&index_lock, 1); - - read_cache(); - - init_merge_options(&o); - o.ancestor = base ? base_label : "(empty tree)"; - o.branch1 = "HEAD"; - o.branch2 = next ? next_label : "(empty tree)"; - - head_tree = parse_tree_indirect(head); - next_tree = next ? next->tree : empty_tree(); - base_tree = base ? base->tree : empty_tree(); - - for (xopt = opts->xopts; xopt != opts->xopts + opts->xopts_nr; xopt++) - parse_merge_opt(&o, *xopt); - - clean = merge_trees(&o, - head_tree, - next_tree, base_tree, &result); - - if (active_cache_changed && - (write_cache(index_fd, active_cache, active_nr) || - commit_locked_index(&index_lock))) - /* TRANSLATORS: %s will be "revert" or "cherry-pick" */ - die(_("%s: Unable to write new index file"), action_name(opts)); - rollback_lock_file(&index_lock); - - if (!clean) { - int i; - strbuf_addstr(msgbuf, "\nConflicts:\n\n"); - for (i = 0; i < active_nr;) { - struct cache_entry *ce = active_cache[i++]; - if (ce_stage(ce)) { - strbuf_addch(msgbuf, '\t'); - strbuf_addstr(msgbuf, ce->name); - strbuf_addch(msgbuf, '\n'); - while (i < active_nr && !strcmp(ce->name, - active_cache[i]->name)) - i++; - } - } - } - - return !clean; -} - -/* - * If we are cherry-pick, and if the merge did not result in - * hand-editing, we will hit this commit and inherit the original - * author date and name. - * If we are revert, or if our cherry-pick results in a hand merge, - * we had better say that the current user is responsible for that. - */ -static int run_git_commit(const char *defmsg, struct replay_opts *opts) -{ - /* 6 is max possible length of our args array including NULL */ - const char *args[6]; - int i = 0; - - args[i++] = "commit"; - args[i++] = "-n"; - if (opts->signoff) - args[i++] = "-s"; - if (!opts->edit) { - args[i++] = "-F"; - args[i++] = defmsg; - } - args[i] = NULL; - - return run_command_v_opt(args, RUN_GIT_CMD); -} - -static int do_pick_commit(struct commit *commit, struct replay_opts *opts) -{ - unsigned char head[20]; - struct commit *base, *next, *parent; - const char *base_label, *next_label; - struct commit_message msg = { NULL, NULL, NULL, NULL, NULL }; - char *defmsg = NULL; - struct strbuf msgbuf = STRBUF_INIT; - int res; - - if (opts->no_commit) { - /* - * We do not intend to commit immediately. We just want to - * merge the differences in, so let's compute the tree - * that represents the "current" state for merge-recursive - * to work on. - */ - if (write_cache_as_tree(head, 0, NULL)) - die (_("Your index file is unmerged.")); - } else { - if (get_sha1("HEAD", head)) - return error(_("You do not have a valid HEAD")); - if (index_differs_from("HEAD", 0)) - return error_dirty_index(opts); - } - discard_cache(); - - if (!commit->parents) { - parent = NULL; - } - else if (commit->parents->next) { - /* Reverting or cherry-picking a merge commit */ - int cnt; - struct commit_list *p; - - if (!opts->mainline) - return error(_("Commit %s is a merge but no -m option was given."), - sha1_to_hex(commit->object.sha1)); - - for (cnt = 1, p = commit->parents; - cnt != opts->mainline && p; - cnt++) - p = p->next; - if (cnt != opts->mainline || !p) - return error(_("Commit %s does not have parent %d"), - sha1_to_hex(commit->object.sha1), opts->mainline); - parent = p->item; - } else if (0 < opts->mainline) - return error(_("Mainline was specified but commit %s is not a merge."), - sha1_to_hex(commit->object.sha1)); - else - parent = commit->parents->item; - - if (opts->allow_ff && parent && !hashcmp(parent->object.sha1, head)) - return fast_forward_to(commit->object.sha1, head); - - if (parent && parse_commit(parent) < 0) - /* TRANSLATORS: The first %s will be "revert" or - "cherry-pick", the second %s a SHA1 */ - return error(_("%s: cannot parse parent commit %s"), - action_name(opts), sha1_to_hex(parent->object.sha1)); - - if (get_message(commit, &msg) != 0) - return error(_("Cannot get commit message for %s"), - sha1_to_hex(commit->object.sha1)); - - /* - * "commit" is an existing commit. We would want to apply - * the difference it introduces since its first parent "prev" - * on top of the current HEAD if we are cherry-pick. Or the - * reverse of it if we are revert. - */ - - defmsg = git_pathdup("MERGE_MSG"); - - if (opts->action == REVERT) { - base = commit; - base_label = msg.label; - next = parent; - next_label = msg.parent_label; - strbuf_addstr(&msgbuf, "Revert \""); - strbuf_addstr(&msgbuf, msg.subject); - strbuf_addstr(&msgbuf, "\"\n\nThis reverts commit "); - strbuf_addstr(&msgbuf, sha1_to_hex(commit->object.sha1)); - - if (commit->parents && commit->parents->next) { - strbuf_addstr(&msgbuf, ", reversing\nchanges made to "); - strbuf_addstr(&msgbuf, sha1_to_hex(parent->object.sha1)); - } - strbuf_addstr(&msgbuf, ".\n"); - } else { - const char *p; - - base = parent; - base_label = msg.parent_label; - next = commit; - next_label = msg.label; - - /* - * Append the commit log message to msgbuf; it starts - * after the tree, parent, author, committer - * information followed by "\n\n". - */ - p = strstr(msg.message, "\n\n"); - if (p) { - p += 2; - strbuf_addstr(&msgbuf, p); - } - - if (opts->record_origin) { - strbuf_addstr(&msgbuf, "(cherry picked from commit "); - strbuf_addstr(&msgbuf, sha1_to_hex(commit->object.sha1)); - strbuf_addstr(&msgbuf, ")\n"); - } - } - - if (!opts->strategy || !strcmp(opts->strategy, "recursive") || opts->action == REVERT) { - res = do_recursive_merge(base, next, base_label, next_label, - head, &msgbuf, opts); - write_message(&msgbuf, defmsg); - } else { - struct commit_list *common = NULL; - struct commit_list *remotes = NULL; - - write_message(&msgbuf, defmsg); - - commit_list_insert(base, &common); - commit_list_insert(next, &remotes); - res = try_merge_command(opts->strategy, opts->xopts_nr, opts->xopts, - common, sha1_to_hex(head), remotes); - free_commit_list(common); - free_commit_list(remotes); - } - - /* - * If the merge was clean or if it failed due to conflict, we write - * CHERRY_PICK_HEAD for the subsequent invocation of commit to use. - * However, if the merge did not even start, then we don't want to - * write it at all. - */ - if (opts->action == CHERRY_PICK && !opts->no_commit && (res == 0 || res == 1)) - write_cherry_pick_head(commit, "CHERRY_PICK_HEAD"); - if (opts->action == REVERT && ((opts->no_commit && res == 0) || res == 1)) - write_cherry_pick_head(commit, "REVERT_HEAD"); - - if (res) { - error(opts->action == REVERT - ? _("could not revert %s... %s") - : _("could not apply %s... %s"), - find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV), - msg.subject); - print_advice(res == 1); - rerere(opts->allow_rerere_auto); - } else { - if (!opts->no_commit) - res = run_git_commit(defmsg, opts); - } - - free_message(&msg); - free(defmsg); - - return res; -} - -static void prepare_revs(struct replay_opts *opts) -{ - if (opts->action != REVERT) - opts->revs->reverse ^= 1; - - if (prepare_revision_walk(opts->revs)) - die(_("revision walk setup failed")); - - if (!opts->revs->commits) - die(_("empty commit set passed")); -} - -static void read_and_refresh_cache(struct replay_opts *opts) -{ - static struct lock_file index_lock; - int index_fd = hold_locked_index(&index_lock, 0); - if (read_index_preload(&the_index, NULL) < 0) - die(_("git %s: failed to read the index"), action_name(opts)); - refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, NULL, NULL, NULL); - if (the_index.cache_changed) { - if (write_index(&the_index, index_fd) || - commit_locked_index(&index_lock)) - die(_("git %s: failed to refresh the index"), action_name(opts)); - } - rollback_lock_file(&index_lock); -} - -/* - * Append a commit to the end of the commit_list. - * - * next starts by pointing to the variable that holds the head of an - * empty commit_list, and is updated to point to the "next" field of - * the last item on the list as new commits are appended. - * - * Usage example: - * - * struct commit_list *list; - * struct commit_list **next = &list; - * - * next = commit_list_append(c1, next); - * next = commit_list_append(c2, next); - * assert(commit_list_count(list) == 2); - * return list; - */ -static struct commit_list **commit_list_append(struct commit *commit, - struct commit_list **next) -{ - struct commit_list *new = xmalloc(sizeof(struct commit_list)); - new->item = commit; - *next = new; - new->next = NULL; - return &new->next; -} - -static int format_todo(struct strbuf *buf, struct commit_list *todo_list, - struct replay_opts *opts) -{ - struct commit_list *cur = NULL; - struct commit_message msg = { NULL, NULL, NULL, NULL, NULL }; - const char *sha1_abbrev = NULL; - const char *action_str = opts->action == REVERT ? "revert" : "pick"; - - for (cur = todo_list; cur; cur = cur->next) { - sha1_abbrev = find_unique_abbrev(cur->item->object.sha1, DEFAULT_ABBREV); - if (get_message(cur->item, &msg)) - return error(_("Cannot get commit message for %s"), sha1_abbrev); - strbuf_addf(buf, "%s %s %s\n", action_str, sha1_abbrev, msg.subject); - } - return 0; -} - -static struct commit *parse_insn_line(char *start, struct replay_opts *opts) -{ - unsigned char commit_sha1[20]; - char sha1_abbrev[40]; - enum replay_action action; - int insn_len = 0; - char *p, *q; - - if (!prefixcmp(start, "pick ")) { - action = CHERRY_PICK; - insn_len = strlen("pick"); - p = start + insn_len + 1; - } else if (!prefixcmp(start, "revert ")) { - action = REVERT; - insn_len = strlen("revert"); - p = start + insn_len + 1; - } else - return NULL; - - q = strchr(p, ' '); - if (!q) - return NULL; - q++; - - strlcpy(sha1_abbrev, p, q - p); - - /* - * Verify that the action matches up with the one in - * opts; we don't support arbitrary instructions - */ - if (action != opts->action) { - const char *action_str; - action_str = action == REVERT ? "revert" : "cherry-pick"; - error(_("Cannot %s during a %s"), action_str, action_name(opts)); - return NULL; - } - - if (get_sha1(sha1_abbrev, commit_sha1) < 0) - return NULL; - - return lookup_commit_reference(commit_sha1); -} - -static int parse_insn_buffer(char *buf, struct commit_list **todo_list, - struct replay_opts *opts) -{ - struct commit_list **next = todo_list; - struct commit *commit; - char *p = buf; - int i; - - for (i = 1; *p; i++) { - commit = parse_insn_line(p, opts); - if (!commit) - return error(_("Could not parse line %d."), i); - next = commit_list_append(commit, next); - p = strchrnul(p, '\n'); - if (*p) - p++; - } - if (!*todo_list) - return error(_("No commits parsed.")); - return 0; -} - -static void read_populate_todo(struct commit_list **todo_list, - struct replay_opts *opts) -{ - const char *todo_file = git_path(SEQ_TODO_FILE); - struct strbuf buf = STRBUF_INIT; - int fd, res; - - fd = open(todo_file, O_RDONLY); - if (fd < 0) - die_errno(_("Could not open %s"), todo_file); - if (strbuf_read(&buf, fd, 0) < 0) { - close(fd); - strbuf_release(&buf); - die(_("Could not read %s."), todo_file); - } - close(fd); - - res = parse_insn_buffer(buf.buf, todo_list, opts); - strbuf_release(&buf); - if (res) - die(_("Unusable instruction sheet: %s"), todo_file); -} - -static int populate_opts_cb(const char *key, const char *value, void *data) -{ - struct replay_opts *opts = data; - int error_flag = 1; - - if (!value) - error_flag = 0; - else if (!strcmp(key, "options.no-commit")) - opts->no_commit = git_config_bool_or_int(key, value, &error_flag); - else if (!strcmp(key, "options.edit")) - opts->edit = git_config_bool_or_int(key, value, &error_flag); - else if (!strcmp(key, "options.signoff")) - opts->signoff = git_config_bool_or_int(key, value, &error_flag); - else if (!strcmp(key, "options.record-origin")) - opts->record_origin = git_config_bool_or_int(key, value, &error_flag); - else if (!strcmp(key, "options.allow-ff")) - opts->allow_ff = git_config_bool_or_int(key, value, &error_flag); - else if (!strcmp(key, "options.mainline")) - opts->mainline = git_config_int(key, value); - else if (!strcmp(key, "options.strategy")) - git_config_string(&opts->strategy, key, value); - else if (!strcmp(key, "options.strategy-option")) { - ALLOC_GROW(opts->xopts, opts->xopts_nr + 1, opts->xopts_alloc); - opts->xopts[opts->xopts_nr++] = xstrdup(value); - } else - return error(_("Invalid key: %s"), key); - - if (!error_flag) - return error(_("Invalid value for %s: %s"), key, value); - - return 0; -} - -static void read_populate_opts(struct replay_opts **opts_ptr) -{ - const char *opts_file = git_path(SEQ_OPTS_FILE); - - if (!file_exists(opts_file)) - return; - if (git_config_from_file(populate_opts_cb, opts_file, *opts_ptr) < 0) - die(_("Malformed options sheet: %s"), opts_file); -} - -static void walk_revs_populate_todo(struct commit_list **todo_list, - struct replay_opts *opts) -{ - struct commit *commit; - struct commit_list **next; - - prepare_revs(opts); - - next = todo_list; - while ((commit = get_revision(opts->revs))) - next = commit_list_append(commit, next); -} - -static int create_seq_dir(void) -{ - const char *seq_dir = git_path(SEQ_DIR); - - if (file_exists(seq_dir)) { - error(_("a cherry-pick or revert is already in progress")); - advise(_("try \"git cherry-pick (--continue | --quit | --abort)\"")); - return -1; - } - else if (mkdir(seq_dir, 0777) < 0) - die_errno(_("Could not create sequencer directory %s"), seq_dir); - return 0; -} - -static void save_head(const char *head) -{ - const char *head_file = git_path(SEQ_HEAD_FILE); - static struct lock_file head_lock; - struct strbuf buf = STRBUF_INIT; - int fd; - - fd = hold_lock_file_for_update(&head_lock, head_file, LOCK_DIE_ON_ERROR); - strbuf_addf(&buf, "%s\n", head); - if (write_in_full(fd, buf.buf, buf.len) < 0) - die_errno(_("Could not write to %s"), head_file); - if (commit_lock_file(&head_lock) < 0) - die(_("Error wrapping up %s."), head_file); -} - -static int reset_for_rollback(const unsigned char *sha1) -{ - const char *argv[4]; /* reset --merge <arg> + NULL */ - argv[0] = "reset"; - argv[1] = "--merge"; - argv[2] = sha1_to_hex(sha1); - argv[3] = NULL; - return run_command_v_opt(argv, RUN_GIT_CMD); -} - -static int rollback_single_pick(void) -{ - unsigned char head_sha1[20]; - - if (!file_exists(git_path("CHERRY_PICK_HEAD")) && - !file_exists(git_path("REVERT_HEAD"))) - return error(_("no cherry-pick or revert in progress")); - if (read_ref_full("HEAD", head_sha1, 0, NULL)) - return error(_("cannot resolve HEAD")); - if (is_null_sha1(head_sha1)) - return error(_("cannot abort from a branch yet to be born")); - return reset_for_rollback(head_sha1); -} - -static int sequencer_rollback(struct replay_opts *opts) -{ - const char *filename; - FILE *f; - unsigned char sha1[20]; - struct strbuf buf = STRBUF_INIT; - - filename = git_path(SEQ_HEAD_FILE); - f = fopen(filename, "r"); - if (!f && errno == ENOENT) { - /* - * There is no multiple-cherry-pick in progress. - * If CHERRY_PICK_HEAD or REVERT_HEAD indicates - * a single-cherry-pick in progress, abort that. - */ - return rollback_single_pick(); - } - if (!f) - return error(_("cannot open %s: %s"), filename, - strerror(errno)); - if (strbuf_getline(&buf, f, '\n')) { - error(_("cannot read %s: %s"), filename, ferror(f) ? - strerror(errno) : _("unexpected end of file")); - fclose(f); - goto fail; - } - fclose(f); - if (get_sha1_hex(buf.buf, sha1) || buf.buf[40] != '\0') { - error(_("stored pre-cherry-pick HEAD file '%s' is corrupt"), - filename); - goto fail; - } - if (reset_for_rollback(sha1)) - goto fail; - remove_sequencer_state(); - strbuf_release(&buf); - return 0; -fail: - strbuf_release(&buf); - return -1; -} - -static void save_todo(struct commit_list *todo_list, struct replay_opts *opts) -{ - const char *todo_file = git_path(SEQ_TODO_FILE); - static struct lock_file todo_lock; - struct strbuf buf = STRBUF_INIT; - int fd; - - fd = hold_lock_file_for_update(&todo_lock, todo_file, LOCK_DIE_ON_ERROR); - if (format_todo(&buf, todo_list, opts) < 0) - die(_("Could not format %s."), todo_file); - if (write_in_full(fd, buf.buf, buf.len) < 0) { - strbuf_release(&buf); - die_errno(_("Could not write to %s"), todo_file); - } - if (commit_lock_file(&todo_lock) < 0) { - strbuf_release(&buf); - die(_("Error wrapping up %s."), todo_file); - } - strbuf_release(&buf); -} - -static void save_opts(struct replay_opts *opts) -{ - const char *opts_file = git_path(SEQ_OPTS_FILE); - - if (opts->no_commit) - git_config_set_in_file(opts_file, "options.no-commit", "true"); - if (opts->edit) - git_config_set_in_file(opts_file, "options.edit", "true"); - if (opts->signoff) - git_config_set_in_file(opts_file, "options.signoff", "true"); - if (opts->record_origin) - git_config_set_in_file(opts_file, "options.record-origin", "true"); - if (opts->allow_ff) - git_config_set_in_file(opts_file, "options.allow-ff", "true"); - if (opts->mainline) { - struct strbuf buf = STRBUF_INIT; - strbuf_addf(&buf, "%d", opts->mainline); - git_config_set_in_file(opts_file, "options.mainline", buf.buf); - strbuf_release(&buf); - } - if (opts->strategy) - git_config_set_in_file(opts_file, "options.strategy", opts->strategy); - if (opts->xopts) { - int i; - for (i = 0; i < opts->xopts_nr; i++) - git_config_set_multivar_in_file(opts_file, - "options.strategy-option", - opts->xopts[i], "^$", 0); - } -} - -static int pick_commits(struct commit_list *todo_list, struct replay_opts *opts) -{ - struct commit_list *cur; - int res; - - setenv(GIT_REFLOG_ACTION, action_name(opts), 0); - if (opts->allow_ff) - assert(!(opts->signoff || opts->no_commit || - opts->record_origin || opts->edit)); - read_and_refresh_cache(opts); - - for (cur = todo_list; cur; cur = cur->next) { - save_todo(cur, opts); - res = do_pick_commit(cur->item, opts); - if (res) - return res; - } - - /* - * Sequence of picks finished successfully; cleanup by - * removing the .git/sequencer directory - */ - remove_sequencer_state(); - return 0; -} - -static int continue_single_pick(void) -{ - const char *argv[] = { "commit", NULL }; - - if (!file_exists(git_path("CHERRY_PICK_HEAD")) && - !file_exists(git_path("REVERT_HEAD"))) - return error(_("no cherry-pick or revert in progress")); - return run_command_v_opt(argv, RUN_GIT_CMD); -} - -static int sequencer_continue(struct replay_opts *opts) -{ - struct commit_list *todo_list = NULL; - - if (!file_exists(git_path(SEQ_TODO_FILE))) - return continue_single_pick(); - read_populate_opts(&opts); - read_populate_todo(&todo_list, opts); - - /* Verify that the conflict has been resolved */ - if (file_exists(git_path("CHERRY_PICK_HEAD")) || - file_exists(git_path("REVERT_HEAD"))) { - int ret = continue_single_pick(); - if (ret) - return ret; - } - if (index_differs_from("HEAD", 0)) - return error_dirty_index(opts); - todo_list = todo_list->next; - return pick_commits(todo_list, opts); -} - -static int single_pick(struct commit *cmit, struct replay_opts *opts) -{ - setenv(GIT_REFLOG_ACTION, action_name(opts), 0); - return do_pick_commit(cmit, opts); -} - -static int pick_revisions(struct replay_opts *opts) -{ - struct commit_list *todo_list = NULL; - unsigned char sha1[20]; - - if (opts->subcommand == REPLAY_NONE) - assert(opts->revs); - - read_and_refresh_cache(opts); - - /* - * Decide what to do depending on the arguments; a fresh - * cherry-pick should be handled differently from an existing - * one that is being continued - */ - if (opts->subcommand == REPLAY_REMOVE_STATE) { - remove_sequencer_state(); - return 0; - } - if (opts->subcommand == REPLAY_ROLLBACK) - return sequencer_rollback(opts); - if (opts->subcommand == REPLAY_CONTINUE) - return sequencer_continue(opts); - - /* - * If we were called as "git cherry-pick <commit>", just - * cherry-pick/revert it, set CHERRY_PICK_HEAD / - * REVERT_HEAD, and don't touch the sequencer state. - * This means it is possible to cherry-pick in the middle - * of a cherry-pick sequence. - */ - if (opts->revs->cmdline.nr == 1 && - opts->revs->cmdline.rev->whence == REV_CMD_REV && - opts->revs->no_walk && - !opts->revs->cmdline.rev->flags) { - struct commit *cmit; - if (prepare_revision_walk(opts->revs)) - die(_("revision walk setup failed")); - cmit = get_revision(opts->revs); - if (!cmit || get_revision(opts->revs)) - die("BUG: expected exactly one commit from walk"); - return single_pick(cmit, opts); - } - - /* - * Start a new cherry-pick/ revert sequence; but - * first, make sure that an existing one isn't in - * progress - */ - - walk_revs_populate_todo(&todo_list, opts); - if (create_seq_dir() < 0) - return -1; - if (get_sha1("HEAD", sha1)) { - if (opts->action == REVERT) - return error(_("Can't revert as initial commit")); - return error(_("Can't cherry-pick into empty head")); - } - save_head(sha1_to_hex(sha1)); - save_opts(opts); - return pick_commits(todo_list, opts); -} - int cmd_revert(int argc, const char **argv, const char *prefix) { struct replay_opts opts; @@ -1139,10 +189,10 @@ int cmd_revert(int argc, const char **argv, const char *prefix) memset(&opts, 0, sizeof(opts)); if (isatty(0)) opts.edit = 1; - opts.action = REVERT; + opts.action = REPLAY_REVERT; git_config(git_default_config, NULL); parse_args(argc, argv, &opts); - res = pick_revisions(&opts); + res = sequencer_pick_revisions(&opts); if (res < 0) die(_("revert failed")); return res; @@ -1154,10 +204,10 @@ int cmd_cherry_pick(int argc, const char **argv, const char *prefix) int res; memset(&opts, 0, sizeof(opts)); - opts.action = CHERRY_PICK; + opts.action = REPLAY_PICK; git_config(git_default_config, NULL); parse_args(argc, argv, &opts); - res = pick_revisions(&opts); + res = sequencer_pick_revisions(&opts); if (res < 0) die(_("cherry-pick failed")); return res; diff --git a/builtin/rm.c b/builtin/rm.c index 90c8a5047c..8abb0207fa 100644 --- a/builtin/rm.c +++ b/builtin/rm.c @@ -3,23 +3,110 @@ * * Copyright (C) Linus Torvalds 2006 */ -#include "cache.h" #include "builtin.h" +#include "lockfile.h" #include "dir.h" #include "cache-tree.h" #include "tree-walk.h" #include "parse-options.h" +#include "string-list.h" +#include "submodule.h" +#include "pathspec.h" static const char * const builtin_rm_usage[] = { - "git rm [options] [--] <file>...", + N_("git rm [<options>] [--] <file>..."), NULL }; static struct { int nr, alloc; - const char **name; + struct { + const char *name; + char is_submodule; + } *entry; } list; +static int get_ours_cache_pos(const char *path, int pos) +{ + int i = -pos - 1; + + while ((i < active_nr) && !strcmp(active_cache[i]->name, path)) { + if (ce_stage(active_cache[i]) == 2) + return i; + i++; + } + return -1; +} + +static void print_error_files(struct string_list *files_list, + const char *main_msg, + const char *hints_msg, + int *errs) +{ + if (files_list->nr) { + int i; + struct strbuf err_msg = STRBUF_INIT; + + strbuf_addstr(&err_msg, main_msg); + for (i = 0; i < files_list->nr; i++) + strbuf_addf(&err_msg, + "\n %s", + files_list->items[i].string); + if (advice_rm_hints) + strbuf_addstr(&err_msg, hints_msg); + *errs = error("%s", err_msg.buf); + strbuf_release(&err_msg); + } +} + +static void error_removing_concrete_submodules(struct string_list *files, int *errs) +{ + print_error_files(files, + Q_("the following submodule (or one of its nested " + "submodules)\n" + "uses a .git directory:", + "the following submodules (or one of their nested " + "submodules)\n" + "use a .git directory:", files->nr), + _("\n(use 'rm -rf' if you really want to remove " + "it including all of its history)"), + errs); + string_list_clear(files, 0); +} + +static int check_submodules_use_gitfiles(void) +{ + int i; + int errs = 0; + struct string_list files = STRING_LIST_INIT_NODUP; + + for (i = 0; i < list.nr; i++) { + const char *name = list.entry[i].name; + int pos; + const struct cache_entry *ce; + + pos = cache_name_pos(name, strlen(name)); + if (pos < 0) { + pos = get_ours_cache_pos(name, pos); + if (pos < 0) + continue; + } + ce = active_cache[pos]; + + if (!S_ISGITLINK(ce->ce_mode) || + !file_exists(ce->name) || + is_empty_dir(name)) + continue; + + if (!submodule_uses_gitfile(name)) + string_list_append(&files, name); + } + + error_removing_concrete_submodules(&files, &errs); + + return errs; +} + static int check_local_mod(unsigned char *head, int index_only) { /* @@ -31,26 +118,41 @@ static int check_local_mod(unsigned char *head, int index_only) */ int i, no_head; int errs = 0; + struct string_list files_staged = STRING_LIST_INIT_NODUP; + struct string_list files_cached = STRING_LIST_INIT_NODUP; + struct string_list files_submodule = STRING_LIST_INIT_NODUP; + struct string_list files_local = STRING_LIST_INIT_NODUP; no_head = is_null_sha1(head); for (i = 0; i < list.nr; i++) { struct stat st; int pos; - struct cache_entry *ce; - const char *name = list.name[i]; + const struct cache_entry *ce; + const char *name = list.entry[i].name; unsigned char sha1[20]; unsigned mode; int local_changes = 0; int staged_changes = 0; pos = cache_name_pos(name, strlen(name)); - if (pos < 0) - continue; /* removing unmerged entry */ + if (pos < 0) { + /* + * Skip unmerged entries except for populated submodules + * that could lose history when removed. + */ + pos = get_ours_cache_pos(name, pos); + if (pos < 0) + continue; + + if (!S_ISGITLINK(active_cache[pos]->ce_mode) || + is_empty_dir(name)) + continue; + } ce = active_cache[pos]; if (lstat(ce->name, &st) < 0) { - if (errno != ENOENT) - warning("'%s': %s", ce->name, strerror(errno)); + if (errno != ENOENT && errno != ENOTDIR) + warning_errno(_("failed to stat '%s'"), ce->name); /* It already vanished from the working tree */ continue; } @@ -58,9 +160,10 @@ static int check_local_mod(unsigned char *head, int index_only) /* if a file was removed and it is now a * directory, that is the same as ENOENT as * far as git is concerned; we do not track - * directories. + * directories unless they are submodules. */ - continue; + if (!S_ISGITLINK(ce->ce_mode)) + continue; } /* @@ -80,8 +183,11 @@ static int check_local_mod(unsigned char *head, int index_only) /* * Is the index different from the file in the work tree? + * If it's a submodule, is its work tree modified? */ - if (ce_match_stat(ce, &st, 0)) + if (ce_match_stat(ce, &st, 0) || + (S_ISGITLINK(ce->ce_mode) && + !ok_to_remove_submodule(ce->name))) local_changes = 1; /* @@ -105,22 +211,51 @@ static int check_local_mod(unsigned char *head, int index_only) * "intent to add" entry. */ if (local_changes && staged_changes) { - if (!index_only || !(ce->ce_flags & CE_INTENT_TO_ADD)) - errs = error(_("'%s' has staged content different " - "from both the file and the HEAD\n" - "(use -f to force removal)"), name); + if (!index_only || !ce_intent_to_add(ce)) + string_list_append(&files_staged, name); } else if (!index_only) { if (staged_changes) - errs = error(_("'%s' has changes staged in the index\n" - "(use --cached to keep the file, " - "or -f to force removal)"), name); - if (local_changes) - errs = error(_("'%s' has local modifications\n" - "(use --cached to keep the file, " - "or -f to force removal)"), name); + string_list_append(&files_cached, name); + if (local_changes) { + if (S_ISGITLINK(ce->ce_mode) && + !submodule_uses_gitfile(name)) + string_list_append(&files_submodule, name); + else + string_list_append(&files_local, name); + } } } + print_error_files(&files_staged, + Q_("the following file has staged content different " + "from both the\nfile and the HEAD:", + "the following files have staged content different" + " from both the\nfile and the HEAD:", + files_staged.nr), + _("\n(use -f to force removal)"), + &errs); + string_list_clear(&files_staged, 0); + print_error_files(&files_cached, + Q_("the following file has changes " + "staged in the index:", + "the following files have changes " + "staged in the index:", files_cached.nr), + _("\n(use --cached to keep the file," + " or -f to force removal)"), + &errs); + string_list_clear(&files_cached, 0); + + error_removing_concrete_submodules(&files_submodule, &errs); + + print_error_files(&files_local, + Q_("the following file has local modifications:", + "the following files have local modifications:", + files_local.nr), + _("\n(use --cached to keep the file," + " or -f to force removal)"), + &errs); + string_list_clear(&files_local, 0); + return errs; } @@ -130,22 +265,23 @@ static int show_only = 0, force = 0, index_only = 0, recursive = 0, quiet = 0; static int ignore_unmatch = 0; static struct option builtin_rm_options[] = { - OPT__DRY_RUN(&show_only, "dry run"), - OPT__QUIET(&quiet, "do not list removed files"), - OPT_BOOLEAN( 0 , "cached", &index_only, "only remove from the index"), - OPT__FORCE(&force, "override the up-to-date check"), - OPT_BOOLEAN('r', NULL, &recursive, "allow recursive removal"), - OPT_BOOLEAN( 0 , "ignore-unmatch", &ignore_unmatch, - "exit with a zero status even if nothing matched"), + OPT__DRY_RUN(&show_only, N_("dry run")), + OPT__QUIET(&quiet, N_("do not list removed files")), + OPT_BOOL( 0 , "cached", &index_only, N_("only remove from the index")), + OPT__FORCE(&force, N_("override the up-to-date check")), + OPT_BOOL('r', NULL, &recursive, N_("allow recursive removal")), + OPT_BOOL( 0 , "ignore-unmatch", &ignore_unmatch, + N_("exit with a zero status even if nothing matched")), OPT_END(), }; int cmd_rm(int argc, const char **argv, const char *prefix) { - int i, newfd; - const char **pathspec; + int i; + struct pathspec pathspec; char *seen; + gitmodules_config(); git_config(git_default_config, NULL); argc = parse_options(argc, argv, prefix, builtin_rm_options, @@ -156,35 +292,40 @@ int cmd_rm(int argc, const char **argv, const char *prefix) if (!index_only) setup_work_tree(); - newfd = hold_locked_index(&lock_file, 1); + hold_locked_index(&lock_file, 1); if (read_cache() < 0) die(_("index file corrupt")); - pathspec = get_pathspec(prefix, argv); - refresh_index(&the_index, REFRESH_QUIET, pathspec, NULL, NULL); + parse_pathspec(&pathspec, 0, + PATHSPEC_PREFER_CWD | + PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP, + prefix, argv); + refresh_index(&the_index, REFRESH_QUIET, &pathspec, NULL, NULL); - seen = NULL; - for (i = 0; pathspec[i] ; i++) - /* nothing */; - seen = xcalloc(i, 1); + seen = xcalloc(pathspec.nr, 1); for (i = 0; i < active_nr; i++) { - struct cache_entry *ce = active_cache[i]; - if (!match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, seen)) + const struct cache_entry *ce = active_cache[i]; + if (!ce_path_match(ce, &pathspec, seen)) continue; - ALLOC_GROW(list.name, list.nr + 1, list.alloc); - list.name[list.nr++] = ce->name; + ALLOC_GROW(list.entry, list.nr + 1, list.alloc); + list.entry[list.nr].name = xstrdup(ce->name); + list.entry[list.nr].is_submodule = S_ISGITLINK(ce->ce_mode); + if (list.entry[list.nr++].is_submodule && + !is_staging_gitmodules_ok()) + die (_("Please stage your changes to .gitmodules or stash them to proceed")); } - if (pathspec) { - const char *match; + if (pathspec.nr) { + const char *original; int seen_any = 0; - for (i = 0; (match = pathspec[i]) != NULL ; i++) { + for (i = 0; i < pathspec.nr; i++) { + original = pathspec.items[i].original; if (!seen[i]) { if (!ignore_unmatch) { die(_("pathspec '%s' did not match any files"), - match); + original); } } else { @@ -192,10 +333,10 @@ int cmd_rm(int argc, const char **argv, const char *prefix) } if (!recursive && seen[i] == MATCHED_RECURSIVELY) die(_("not removing '%s' recursively without -r"), - *match ? match : "."); + *original ? original : "."); } - if (! seen_any) + if (!seen_any) exit(0); } @@ -215,6 +356,9 @@ int cmd_rm(int argc, const char **argv, const char *prefix) hashclr(sha1); if (check_local_mod(sha1, index_only)) exit(1); + } else if (!index_only) { + if (check_submodules_use_gitfiles()) + exit(1); } /* @@ -222,7 +366,7 @@ int cmd_rm(int argc, const char **argv, const char *prefix) * the index unless all of them succeed. */ for (i = 0; i < list.nr; i++) { - const char *path = list.name[i]; + const char *path = list.entry[i].name; if (!quiet) printf("rm '%s'\n", path); @@ -242,9 +386,34 @@ int cmd_rm(int argc, const char **argv, const char *prefix) * in the middle) */ if (!index_only) { - int removed = 0; + int removed = 0, gitmodules_modified = 0; for (i = 0; i < list.nr; i++) { - const char *path = list.name[i]; + const char *path = list.entry[i].name; + if (list.entry[i].is_submodule) { + if (is_empty_dir(path)) { + if (!rmdir(path)) { + removed = 1; + if (!remove_path_from_gitmodules(path)) + gitmodules_modified = 1; + continue; + } + } else { + struct strbuf buf = STRBUF_INIT; + strbuf_addstr(&buf, path); + if (!remove_dir_recursively(&buf, 0)) { + removed = 1; + if (!remove_path_from_gitmodules(path)) + gitmodules_modified = 1; + strbuf_release(&buf); + continue; + } else if (!file_exists(path)) + /* Submodule was removed by user */ + if (!remove_path_from_gitmodules(path)) + gitmodules_modified = 1; + strbuf_release(&buf); + /* Fallthrough and let remove_path() fail. */ + } + } if (!remove_path(path)) { removed = 1; continue; @@ -252,11 +421,12 @@ int cmd_rm(int argc, const char **argv, const char *prefix) if (!removed) die_errno("git rm: '%s'", path); } + if (gitmodules_modified) + stage_updated_gitmodules(); } if (active_cache_changed) { - if (write_cache(newfd, active_cache, active_nr) || - commit_locked_index(&lock_file)) + if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK)) die(_("Unable to write new index file")); } diff --git a/builtin/send-pack.c b/builtin/send-pack.c index cd1115ffc6..1ff5a67538 100644 --- a/builtin/send-pack.c +++ b/builtin/send-pack.c @@ -5,174 +5,25 @@ #include "sideband.h" #include "run-command.h" #include "remote.h" +#include "connect.h" #include "send-pack.h" #include "quote.h" #include "transport.h" - -static const char send_pack_usage[] = -"git send-pack [--all | --mirror] [--dry-run] [--force] [--receive-pack=<git-receive-pack>] [--verbose] [--thin] [<host>:]<directory> [<ref>...]\n" -" --all and explicit <ref> specification are mutually exclusive."; +#include "version.h" +#include "sha1-array.h" +#include "gpg-interface.h" +#include "gettext.h" + +static const char * const send_pack_usage[] = { + N_("git send-pack [--all | --mirror] [--dry-run] [--force] " + "[--receive-pack=<git-receive-pack>] [--verbose] [--thin] [--atomic] " + "[<host>:]<directory> [<ref>...]\n" + " --all and explicit <ref> specification are mutually exclusive."), + NULL, +}; static struct send_pack_args args; -static int feed_object(const unsigned char *sha1, int fd, int negative) -{ - char buf[42]; - - if (negative && !has_sha1_file(sha1)) - return 1; - - memcpy(buf + negative, sha1_to_hex(sha1), 40); - if (negative) - buf[0] = '^'; - buf[40 + negative] = '\n'; - return write_or_whine(fd, buf, 41 + negative, "send-pack: send refs"); -} - -/* - * Make a pack stream and spit it out into file descriptor fd - */ -static int pack_objects(int fd, struct ref *refs, struct extra_have_objects *extra, struct send_pack_args *args) -{ - /* - * The child becomes pack-objects --revs; we feed - * the revision parameters to it via its stdin and - * let its stdout go back to the other end. - */ - const char *argv[] = { - "pack-objects", - "--all-progress-implied", - "--revs", - "--stdout", - NULL, - NULL, - NULL, - NULL, - NULL, - }; - struct child_process po; - int i; - - i = 4; - if (args->use_thin_pack) - argv[i++] = "--thin"; - if (args->use_ofs_delta) - argv[i++] = "--delta-base-offset"; - if (args->quiet) - argv[i++] = "-q"; - if (args->progress) - argv[i++] = "--progress"; - memset(&po, 0, sizeof(po)); - po.argv = argv; - po.in = -1; - po.out = args->stateless_rpc ? -1 : fd; - po.git_cmd = 1; - if (start_command(&po)) - die_errno("git pack-objects failed"); - - /* - * We feed the pack-objects we just spawned with revision - * parameters by writing to the pipe. - */ - for (i = 0; i < extra->nr; i++) - if (!feed_object(extra->array[i], po.in, 1)) - break; - - while (refs) { - if (!is_null_sha1(refs->old_sha1) && - !feed_object(refs->old_sha1, po.in, 1)) - break; - if (!is_null_sha1(refs->new_sha1) && - !feed_object(refs->new_sha1, po.in, 0)) - break; - refs = refs->next; - } - - close(po.in); - - if (args->stateless_rpc) { - char *buf = xmalloc(LARGE_PACKET_MAX); - while (1) { - ssize_t n = xread(po.out, buf, LARGE_PACKET_MAX); - if (n <= 0) - break; - send_sideband(fd, -1, buf, n, LARGE_PACKET_MAX); - } - free(buf); - close(po.out); - po.out = -1; - } - - if (finish_command(&po)) - return -1; - return 0; -} - -static int receive_status(int in, struct ref *refs) -{ - struct ref *hint; - char line[1000]; - int ret = 0; - int len = packet_read_line(in, line, sizeof(line)); - if (len < 10 || memcmp(line, "unpack ", 7)) - return error("did not receive remote status"); - if (memcmp(line, "unpack ok\n", 10)) { - char *p = line + strlen(line) - 1; - if (*p == '\n') - *p = '\0'; - error("unpack failed: %s", line + 7); - ret = -1; - } - hint = NULL; - while (1) { - char *refname; - char *msg; - len = packet_read_line(in, line, sizeof(line)); - if (!len) - break; - if (len < 3 || - (memcmp(line, "ok ", 3) && memcmp(line, "ng ", 3))) { - fprintf(stderr, "protocol error: %s\n", line); - ret = -1; - break; - } - - line[strlen(line)-1] = '\0'; - refname = line + 3; - msg = strchr(refname, ' '); - if (msg) - *msg++ = '\0'; - - /* first try searching at our hint, falling back to all refs */ - if (hint) - hint = find_ref_by_name(hint, refname); - if (!hint) - hint = find_ref_by_name(refs, refname); - if (!hint) { - warning("remote reported status on unknown ref: %s", - refname); - continue; - } - if (hint->status != REF_STATUS_EXPECTING_REPORT) { - warning("remote reported status on unexpected ref: %s", - refname); - continue; - } - - if (line[0] == 'o' && line[1] == 'k') - hint->status = REF_STATUS_OK; - else { - hint->status = REF_STATUS_REMOTE_REJECT; - ret = -1; - } - if (msg) - hint->remote_status = xstrdup(msg); - /* start our next search from the next ref */ - hint = hint->next; - } - return ret; -} - static void print_helper_status(struct ref *ref) { struct strbuf buf = STRBUF_INIT; @@ -201,6 +52,26 @@ static void print_helper_status(struct ref *ref) msg = "non-fast forward"; break; + case REF_STATUS_REJECT_FETCH_FIRST: + res = "error"; + msg = "fetch first"; + break; + + case REF_STATUS_REJECT_NEEDS_FORCE: + res = "error"; + msg = "needs force"; + break; + + case REF_STATUS_REJECT_STALE: + res = "error"; + msg = "stale info"; + break; + + case REF_STATUS_REJECT_ALREADY_EXISTS: + res = "error"; + msg = "already exists"; + break; + case REF_STATUS_REJECT_NODELETE: case REF_STATUS_REMOTE_REJECT: res = "error"; @@ -221,168 +92,31 @@ static void print_helper_status(struct ref *ref) } strbuf_addch(&buf, '\n'); - safe_write(1, buf.buf, buf.len); + write_or_die(1, buf.buf, buf.len); } strbuf_release(&buf); } -static int sideband_demux(int in, int out, void *data) +static int send_pack_config(const char *k, const char *v, void *cb) { - int *fd = data, ret; -#ifdef NO_PTHREADS - close(fd[1]); -#endif - ret = recv_sideband("send-pack", fd[0], out); - close(out); - return ret; -} - -int send_pack(struct send_pack_args *args, - int fd[], struct child_process *conn, - struct ref *remote_refs, - struct extra_have_objects *extra_have) -{ - int in = fd[0]; - int out = fd[1]; - struct strbuf req_buf = STRBUF_INIT; - struct ref *ref; - int new_refs; - int allow_deleting_refs = 0; - int status_report = 0; - int use_sideband = 0; - unsigned cmds_sent = 0; - int ret; - struct async demux; - - /* Does the other end support the reporting? */ - if (server_supports("report-status")) - status_report = 1; - if (server_supports("delete-refs")) - allow_deleting_refs = 1; - if (server_supports("ofs-delta")) - args->use_ofs_delta = 1; - if (server_supports("side-band-64k")) - use_sideband = 1; - - if (!remote_refs) { - fprintf(stderr, "No refs in common and none specified; doing nothing.\n" - "Perhaps you should specify a branch such as 'master'.\n"); - return 0; - } - - /* - * Finally, tell the other end! - */ - new_refs = 0; - for (ref = remote_refs; ref; ref = ref->next) { - if (!ref->peer_ref && !args->send_mirror) - continue; - - /* Check for statuses set by set_ref_status_for_push() */ - switch (ref->status) { - case REF_STATUS_REJECT_NONFASTFORWARD: - case REF_STATUS_UPTODATE: - continue; - default: - ; /* do nothing */ - } - - if (ref->deletion && !allow_deleting_refs) { - ref->status = REF_STATUS_REJECT_NODELETE; - continue; - } - - if (!ref->deletion) - new_refs++; - - if (args->dry_run) { - ref->status = REF_STATUS_OK; - } else { - char *old_hex = sha1_to_hex(ref->old_sha1); - char *new_hex = sha1_to_hex(ref->new_sha1); - - if (!cmds_sent && (status_report || use_sideband)) { - packet_buf_write(&req_buf, "%s %s %s%c%s%s", - old_hex, new_hex, ref->name, 0, - status_report ? " report-status" : "", - use_sideband ? " side-band-64k" : ""); + git_gpg_config(k, v, NULL); + + if (!strcmp(k, "push.gpgsign")) { + const char *value; + if (!git_config_get_value("push.gpgsign", &value)) { + switch (git_config_maybe_bool("push.gpgsign", value)) { + case 0: + args.push_cert = SEND_PACK_PUSH_CERT_NEVER; + break; + case 1: + args.push_cert = SEND_PACK_PUSH_CERT_ALWAYS; + break; + default: + if (value && !strcasecmp(value, "if-asked")) + args.push_cert = SEND_PACK_PUSH_CERT_IF_ASKED; + else + return error("Invalid value for '%s'", k); } - else - packet_buf_write(&req_buf, "%s %s %s", - old_hex, new_hex, ref->name); - ref->status = status_report ? - REF_STATUS_EXPECTING_REPORT : - REF_STATUS_OK; - cmds_sent++; - } - } - - if (args->stateless_rpc) { - if (!args->dry_run && cmds_sent) { - packet_buf_flush(&req_buf); - send_sideband(out, -1, req_buf.buf, req_buf.len, LARGE_PACKET_MAX); - } - } else { - safe_write(out, req_buf.buf, req_buf.len); - packet_flush(out); - } - strbuf_release(&req_buf); - - if (use_sideband && cmds_sent) { - memset(&demux, 0, sizeof(demux)); - demux.proc = sideband_demux; - demux.data = fd; - demux.out = -1; - if (start_async(&demux)) - die("send-pack: unable to fork off sideband demultiplexer"); - in = demux.out; - } - - if (new_refs && cmds_sent) { - if (pack_objects(out, remote_refs, extra_have, args) < 0) { - for (ref = remote_refs; ref; ref = ref->next) - ref->status = REF_STATUS_NONE; - if (args->stateless_rpc) - close(out); - if (git_connection_is_socket(conn)) - shutdown(fd[0], SHUT_WR); - if (use_sideband) - finish_async(&demux); - return -1; - } - } - if (args->stateless_rpc && cmds_sent) - packet_flush(out); - - if (status_report && cmds_sent) - ret = receive_status(in, remote_refs); - else - ret = 0; - if (args->stateless_rpc) - packet_flush(out); - - if (use_sideband && cmds_sent) { - if (finish_async(&demux)) { - error("error in sideband demultiplexer"); - ret = -1; - } - close(demux.out); - } - - if (ret < 0) - return ret; - - if (args->porcelain) - return 0; - - for (ref = remote_refs; ref; ref = ref->next) { - switch (ref->status) { - case REF_STATUS_NONE: - case REF_STATUS_UPTODATE: - case REF_STATUS_OK: - break; - default: - return -1; } } return 0; @@ -397,83 +131,103 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix) const char *dest = NULL; int fd[2]; struct child_process *conn; - struct extra_have_objects extra_have; + struct sha1_array extra_have = SHA1_ARRAY_INIT; + struct sha1_array shallow = SHA1_ARRAY_INIT; struct ref *remote_refs, *local_refs; int ret; int helper_status = 0; int send_all = 0; + int verbose = 0; const char *receivepack = "git-receive-pack"; + unsigned dry_run = 0; + unsigned send_mirror = 0; + unsigned force_update = 0; + unsigned quiet = 0; + int push_cert = 0; + unsigned use_thin_pack = 0; + unsigned atomic = 0; + unsigned stateless_rpc = 0; int flags; - int nonfastforward = 0; + unsigned int reject_reasons; + int progress = -1; + int from_stdin = 0; + struct push_cas_option cas = {0}; + + struct option options[] = { + OPT__VERBOSITY(&verbose), + OPT_STRING(0, "receive-pack", &receivepack, "receive-pack", N_("receive pack program")), + OPT_STRING(0, "exec", &receivepack, "receive-pack", N_("receive pack program")), + OPT_STRING(0, "remote", &remote_name, "remote", N_("remote name")), + OPT_BOOL(0, "all", &send_all, N_("push all refs")), + OPT_BOOL('n' , "dry-run", &dry_run, N_("dry run")), + OPT_BOOL(0, "mirror", &send_mirror, N_("mirror all refs")), + OPT_BOOL('f', "force", &force_update, N_("force updates")), + { OPTION_CALLBACK, + 0, "signed", &push_cert, "yes|no|if-asked", N_("GPG sign the push"), + PARSE_OPT_OPTARG, option_parse_push_signed }, + OPT_BOOL(0, "progress", &progress, N_("force progress reporting")), + OPT_BOOL(0, "thin", &use_thin_pack, N_("use thin pack")), + OPT_BOOL(0, "atomic", &atomic, N_("request atomic transaction on remote side")), + OPT_BOOL(0, "stateless-rpc", &stateless_rpc, N_("use stateless RPC protocol")), + OPT_BOOL(0, "stdin", &from_stdin, N_("read refs from stdin")), + OPT_BOOL(0, "helper-status", &helper_status, N_("print status from remote helper")), + { OPTION_CALLBACK, + 0, CAS_OPT_NAME, &cas, N_("refname>:<expect"), + N_("require old value of ref to be at this value"), + PARSE_OPT_OPTARG, parseopt_push_cas_option }, + OPT_END() + }; - argv++; - for (i = 1; i < argc; i++, argv++) { - const char *arg = *argv; + git_config(send_pack_config, NULL); + argc = parse_options(argc, argv, prefix, options, send_pack_usage, 0); + if (argc > 0) { + dest = argv[0]; + refspecs = (const char **)(argv + 1); + nr_refspecs = argc - 1; + } - if (*arg == '-') { - if (!prefixcmp(arg, "--receive-pack=")) { - receivepack = arg + 15; - continue; - } - if (!prefixcmp(arg, "--exec=")) { - receivepack = arg + 7; - continue; - } - if (!prefixcmp(arg, "--remote=")) { - remote_name = arg + 9; - continue; - } - if (!strcmp(arg, "--all")) { - send_all = 1; - continue; - } - if (!strcmp(arg, "--dry-run")) { - args.dry_run = 1; - continue; - } - if (!strcmp(arg, "--mirror")) { - args.send_mirror = 1; - continue; - } - if (!strcmp(arg, "--force")) { - args.force_update = 1; - continue; - } - if (!strcmp(arg, "--verbose")) { - args.verbose = 1; - continue; - } - if (!strcmp(arg, "--thin")) { - args.use_thin_pack = 1; - continue; - } - if (!strcmp(arg, "--stateless-rpc")) { - args.stateless_rpc = 1; - continue; - } - if (!strcmp(arg, "--helper-status")) { - helper_status = 1; - continue; - } - usage(send_pack_usage); - } - if (!dest) { - dest = arg; - continue; + if (!dest) + usage_with_options(send_pack_usage, options); + + args.verbose = verbose; + args.dry_run = dry_run; + args.send_mirror = send_mirror; + args.force_update = force_update; + args.quiet = quiet; + args.push_cert = push_cert; + args.progress = progress; + args.use_thin_pack = use_thin_pack; + args.atomic = atomic; + args.stateless_rpc = stateless_rpc; + + if (from_stdin) { + struct argv_array all_refspecs = ARGV_ARRAY_INIT; + + for (i = 0; i < nr_refspecs; i++) + argv_array_push(&all_refspecs, refspecs[i]); + + if (args.stateless_rpc) { + const char *buf; + while ((buf = packet_read_line(0, NULL))) + argv_array_push(&all_refspecs, buf); + } else { + struct strbuf line = STRBUF_INIT; + while (strbuf_getline(&line, stdin) != EOF) + argv_array_push(&all_refspecs, line.buf); + strbuf_release(&line); } - refspecs = (const char **) argv; - nr_refspecs = argc - i; - break; + + refspecs = all_refspecs.argv; + nr_refspecs = all_refspecs.argc; } - if (!dest) - usage(send_pack_usage); + /* * --all and --mirror are incompatible; neither makes sense * with any refspecs. */ - if ((refspecs && (send_all || args.send_mirror)) || + if ((nr_refspecs > 0 && (send_all || args.send_mirror)) || (send_all && args.send_mirror)) - usage(send_pack_usage); + usage_with_options(send_pack_usage, options); if (remote_name) { remote = remote_get(remote_name); @@ -483,6 +237,10 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix) } } + if (progress == -1) + progress = !args.quiet && isatty(2); + args.progress = progress; + if (args.stateless_rpc) { conn = NULL; fd[0] = 0; @@ -492,9 +250,8 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix) args.verbose ? CONNECT_VERBOSE : 0); } - memset(&extra_have, 0, sizeof(extra_have)); - - get_remote_heads(fd[0], &remote_refs, REF_NORMAL, &extra_have); + get_remote_heads(fd[0], NULL, 0, &remote_refs, REF_NORMAL, + &extra_have, &shallow); transport_verify_remote_names(nr_refspecs, refspecs); @@ -511,6 +268,9 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix) if (match_push_refs(local_refs, &remote_refs, nr_refspecs, refspecs, flags)) return -1; + if (!is_empty_cas(&cas)) + apply_push_cas(&cas, remote, remote_refs); + set_ref_status_for_push(remote_refs, args.send_mirror, args.force_update); @@ -525,7 +285,7 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix) ret |= finish_connect(conn); if (!helper_status) - transport_print_push_status(dest, remote_refs, args.verbose, 0, &nonfastforward); + transport_print_push_status(dest, remote_refs, args.verbose, 0, &reject_reasons); if (!args.dry_run && remote) { struct ref *ref; diff --git a/builtin/shortlog.c b/builtin/shortlog.c index 37f3193a33..bfc082e584 100644 --- a/builtin/shortlog.c +++ b/builtin/shortlog.c @@ -10,13 +10,30 @@ #include "parse-options.h" static char const * const shortlog_usage[] = { - "git shortlog [-n] [-s] [-e] [-w] [rev-opts] [--] [<commit-id>... ]", - "", - "[rev-opts] are documented in git-rev-list(1)", + N_("git shortlog [<options>] [<revision-range>] [[--] [<path>...]]"), NULL }; -static int compare_by_number(const void *a1, const void *a2) +/* + * The util field of our string_list_items will contain one of two things: + * + * - if --summary is not in use, it will point to a string list of the + * oneline subjects assigned to this author + * + * - if --summary is in use, we don't need that list; we only need to know + * its size. So we abuse the pointer slot to store our integer counter. + * + * This macro accesses the latter. + */ +#define UTIL_TO_INT(x) ((intptr_t)(x)->util) + +static int compare_by_counter(const void *a1, const void *a2) +{ + const struct string_list_item *i1 = a1, *i2 = a2; + return UTIL_TO_INT(i2) - UTIL_TO_INT(i1); +} + +static int compare_by_list(const void *a1, const void *a2) { const struct string_list_item *i1 = a1, *i2 = a2; const struct string_list *l1 = i1->util, *l2 = i2->util; @@ -33,144 +50,116 @@ static void insert_one_record(struct shortlog *log, const char *author, const char *oneline) { - const char *dot3 = log->common_repo_prefix; - char *buffer, *p; struct string_list_item *item; - char namebuf[1024]; - char emailbuf[1024]; - size_t len; - const char *eol; - const char *boemail, *eoemail; - struct strbuf subject = STRBUF_INIT; - - boemail = strchr(author, '<'); - if (!boemail) - return; - eoemail = strchr(boemail, '>'); - if (!eoemail) - return; + const char *mailbuf, *namebuf; + size_t namelen, maillen; + struct strbuf namemailbuf = STRBUF_INIT; + struct ident_split ident; - /* copy author name to namebuf, to support matching on both name and email */ - memcpy(namebuf, author, boemail - author); - len = boemail - author; - while (len > 0 && isspace(namebuf[len-1])) - len--; - namebuf[len] = 0; - - /* copy email name to emailbuf, to allow email replacement as well */ - memcpy(emailbuf, boemail+1, eoemail - boemail); - emailbuf[eoemail - boemail - 1] = 0; - - if (!map_user(&log->mailmap, emailbuf, sizeof(emailbuf), namebuf, sizeof(namebuf))) { - while (author < boemail && isspace(*author)) - author++; - for (len = 0; - len < sizeof(namebuf) - 1 && author + len < boemail; - len++) - namebuf[len] = author[len]; - while (0 < len && isspace(namebuf[len-1])) - len--; - namebuf[len] = '\0'; - } - else - len = strlen(namebuf); - - if (log->email) { - size_t room = sizeof(namebuf) - len - 1; - int maillen = strlen(emailbuf); - snprintf(namebuf + len, room, " <%.*s>", maillen, emailbuf); - } + if (split_ident_line(&ident, author, strlen(author))) + return; - item = string_list_insert(&log->list, namebuf); - if (item->util == NULL) - item->util = xcalloc(1, sizeof(struct string_list)); - - /* Skip any leading whitespace, including any blank lines. */ - while (*oneline && isspace(*oneline)) - oneline++; - eol = strchr(oneline, '\n'); - if (!eol) - eol = oneline + strlen(oneline); - if (!prefixcmp(oneline, "[PATCH")) { - char *eob = strchr(oneline, ']'); - if (eob && (!eol || eob < eol)) - oneline = eob + 1; - } - while (*oneline && isspace(*oneline) && *oneline != '\n') - oneline++; - format_subject(&subject, oneline, " "); - buffer = strbuf_detach(&subject, NULL); - - if (dot3) { - int dot3len = strlen(dot3); - if (dot3len > 5) { - while ((p = strstr(buffer, dot3)) != NULL) { - int taillen = strlen(p) - dot3len; - memcpy(p, "/.../", 5); - memmove(p + 5, p + dot3len, taillen + 1); + namebuf = ident.name_begin; + mailbuf = ident.mail_begin; + namelen = ident.name_end - ident.name_begin; + maillen = ident.mail_end - ident.mail_begin; + + map_user(&log->mailmap, &mailbuf, &maillen, &namebuf, &namelen); + strbuf_add(&namemailbuf, namebuf, namelen); + + if (log->email) + strbuf_addf(&namemailbuf, " <%.*s>", (int)maillen, mailbuf); + + item = string_list_insert(&log->list, namemailbuf.buf); + + if (log->summary) + item->util = (void *)(UTIL_TO_INT(item) + 1); + else { + const char *dot3 = log->common_repo_prefix; + char *buffer, *p; + struct strbuf subject = STRBUF_INIT; + const char *eol; + + /* Skip any leading whitespace, including any blank lines. */ + while (*oneline && isspace(*oneline)) + oneline++; + eol = strchr(oneline, '\n'); + if (!eol) + eol = oneline + strlen(oneline); + if (starts_with(oneline, "[PATCH")) { + char *eob = strchr(oneline, ']'); + if (eob && (!eol || eob < eol)) + oneline = eob + 1; + } + while (*oneline && isspace(*oneline) && *oneline != '\n') + oneline++; + format_subject(&subject, oneline, " "); + buffer = strbuf_detach(&subject, NULL); + + if (dot3) { + int dot3len = strlen(dot3); + if (dot3len > 5) { + while ((p = strstr(buffer, dot3)) != NULL) { + int taillen = strlen(p) - dot3len; + memcpy(p, "/.../", 5); + memmove(p + 5, p + dot3len, taillen + 1); + } } } - } - string_list_append(item->util, buffer); + if (item->util == NULL) + item->util = xcalloc(1, sizeof(struct string_list)); + string_list_append(item->util, buffer); + } } static void read_from_stdin(struct shortlog *log) { - char author[1024], oneline[1024]; + struct strbuf author = STRBUF_INIT; + struct strbuf oneline = STRBUF_INIT; - while (fgets(author, sizeof(author), stdin) != NULL) { - if (!(author[0] == 'A' || author[0] == 'a') || - prefixcmp(author + 1, "uthor: ")) + while (strbuf_getline_lf(&author, stdin) != EOF) { + const char *v; + if (!skip_prefix(author.buf, "Author: ", &v) && + !skip_prefix(author.buf, "author ", &v)) continue; - while (fgets(oneline, sizeof(oneline), stdin) && - oneline[0] != '\n') + while (strbuf_getline_lf(&oneline, stdin) != EOF && + oneline.len) ; /* discard headers */ - while (fgets(oneline, sizeof(oneline), stdin) && - oneline[0] == '\n') + while (strbuf_getline_lf(&oneline, stdin) != EOF && + !oneline.len) ; /* discard blanks */ - insert_one_record(log, author + 8, oneline); + insert_one_record(log, v, oneline.buf); } + strbuf_release(&author); + strbuf_release(&oneline); } void shortlog_add_commit(struct shortlog *log, struct commit *commit) { - const char *author = NULL, *buffer; - struct strbuf buf = STRBUF_INIT; - struct strbuf ufbuf = STRBUF_INIT; - - pp_commit_easy(CMIT_FMT_RAW, commit, &buf); - buffer = buf.buf; - while (*buffer && *buffer != '\n') { - const char *eol = strchr(buffer, '\n'); - - if (eol == NULL) - eol = buffer + strlen(buffer); + struct strbuf author = STRBUF_INIT; + struct strbuf oneline = STRBUF_INIT; + struct pretty_print_context ctx = {0}; + + ctx.fmt = CMIT_FMT_USERFORMAT; + ctx.abbrev = log->abbrev; + ctx.subject = ""; + ctx.after_subject = ""; + ctx.date_mode.type = DATE_NORMAL; + ctx.output_encoding = get_log_output_encoding(); + + format_commit_message(commit, "%an <%ae>", &author, &ctx); + if (!log->summary) { + if (log->user_format) + pretty_print_commit(&ctx, commit, &oneline); else - eol++; - - if (!prefixcmp(buffer, "author ")) - author = buffer + 7; - buffer = eol; - } - if (!author) - die(_("Missing author: %s"), - sha1_to_hex(commit->object.sha1)); - if (log->user_format) { - struct pretty_print_context ctx = {0}; - ctx.fmt = CMIT_FMT_USERFORMAT; - ctx.abbrev = log->abbrev; - ctx.subject = ""; - ctx.after_subject = ""; - ctx.date_mode = DATE_NORMAL; - pretty_print_commit(&ctx, commit, &ufbuf); - buffer = ufbuf.buf; - } else if (*buffer) { - buffer++; + format_commit_message(commit, "%s", &oneline, &ctx); } - insert_one_record(log, author, !*buffer ? "<none>" : buffer); - strbuf_release(&ufbuf); - strbuf_release(&buf); + + insert_one_record(log, author.buf, oneline.len ? oneline.buf : "<none>"); + + strbuf_release(&author); + strbuf_release(&oneline); } static void get_from_rev(struct rev_info *rev, struct shortlog *log) @@ -249,14 +238,14 @@ int cmd_shortlog(int argc, const char **argv, const char *prefix) int nongit = !startup_info->have_repository; static const struct option options[] = { - OPT_BOOLEAN('n', "numbered", &log.sort_by_number, - "sort output according to the number of commits per author"), - OPT_BOOLEAN('s', "summary", &log.summary, - "Suppress commit descriptions, only provides commit count"), - OPT_BOOLEAN('e', "email", &log.email, - "Show the email address of each author"), - { OPTION_CALLBACK, 'w', NULL, &log, "w[,i1[,i2]]", - "Linewrap output", PARSE_OPT_OPTARG, &parse_wrap_args }, + OPT_BOOL('n', "numbered", &log.sort_by_number, + N_("sort output according to the number of commits per author")), + OPT_BOOL('s', "summary", &log.summary, + N_("Suppress commit descriptions, only provides commit count")), + OPT_BOOL('e', "email", &log.email, + N_("Show the email address of each author")), + { OPTION_CALLBACK, 'w', NULL, &log, N_("w[,i1[,i2]]"), + N_("Linewrap output"), PARSE_OPT_OPTARG, &parse_wrap_args }, OPT_END(), }; @@ -306,9 +295,8 @@ parse_done: static void add_wrapped_shortlog_msg(struct strbuf *sb, const char *s, const struct shortlog *log) { - int col = strbuf_add_wrapped_text(sb, s, log->in1, log->in2, log->wrap); - if (col != log->wrap) - strbuf_addch(sb, '\n'); + strbuf_add_wrapped_text(sb, s, log->in1, log->in2, log->wrap); + strbuf_addch(sb, '\n'); } void shortlog_output(struct shortlog *log) @@ -318,14 +306,14 @@ void shortlog_output(struct shortlog *log) if (log->sort_by_number) qsort(log->list.items, log->list.nr, sizeof(struct string_list_item), - compare_by_number); + log->summary ? compare_by_counter : compare_by_list); for (i = 0; i < log->list.nr; i++) { - struct string_list *onelines = log->list.items[i].util; - + const struct string_list_item *item = &log->list.items[i]; if (log->summary) { - printf("%6d\t%s\n", onelines->nr, log->list.items[i].string); + printf("%6d\t%s\n", (int)UTIL_TO_INT(item), item->string); } else { - printf("%s (%d):\n", log->list.items[i].string, onelines->nr); + struct string_list *onelines = item->util; + printf("%s (%d):\n", item->string, onelines->nr); for (j = onelines->nr - 1; j >= 0; j--) { const char *msg = onelines->items[j].string; @@ -338,11 +326,11 @@ void shortlog_output(struct shortlog *log) printf(" %s\n", msg); } putchar('\n'); + onelines->strdup_strings = 1; + string_list_clear(onelines, 0); + free(onelines); } - onelines->strdup_strings = 1; - string_list_clear(onelines, 0); - free(onelines); log->list.items[i].util = NULL; } diff --git a/builtin/show-branch.c b/builtin/show-branch.c index a59e088cf5..25669357e9 100644 --- a/builtin/show-branch.c +++ b/builtin/show-branch.c @@ -3,19 +3,21 @@ #include "refs.h" #include "builtin.h" #include "color.h" +#include "argv-array.h" #include "parse-options.h" static const char* show_branch_usage[] = { - "git show-branch [-a|--all] [-r|--remotes] [--topo-order | --date-order] [--current] [--color[=<when>] | --no-color] [--sparse] [--more=<n> | --list | --independent | --merge-base] [--no-name | --sha1-name] [--topics] [(<rev> | <glob>)...]", - "git show-branch (-g|--reflog)[=<n>[,<base>]] [--list] [<ref>]", + N_("git show-branch [-a | --all] [-r | --remotes] [--topo-order | --date-order]\n" + " [--current] [--color[=<when>] | --no-color] [--sparse]\n" + " [--more=<n> | --list | --independent | --merge-base]\n" + " [--no-name | --sha1-name] [--topics] [(<rev> | <glob>)...]"), + N_("git show-branch (-g | --reflog)[=<n>[,<base>]] [--list] [<ref>]"), NULL }; static int showbranch_use_color = -1; -static int default_num; -static int default_alloc; -static const char **default_arg; +static struct argv_array default_args = ARGV_ARRAY_INIT; #define UNINTERESTING 01 @@ -50,17 +52,6 @@ static struct commit *interesting(struct commit_list *list) return NULL; } -static struct commit *pop_one_commit(struct commit_list **list_p) -{ - struct commit *commit; - struct commit_list *list; - list = *list_p; - commit = list->item; - *list_p = list->next; - free(list); - return commit; -} - struct commit_name { const char *head_name; /* which head's ancestor? */ int generation; /* how many parents away from head_name */ @@ -162,29 +153,28 @@ static void name_commits(struct commit_list *list, nth = 0; while (parents) { struct commit *p = parents->item; - char newname[1000], *en; + struct strbuf newname = STRBUF_INIT; parents = parents->next; nth++; if (p->util) continue; - en = newname; switch (n->generation) { case 0: - en += sprintf(en, "%s", n->head_name); + strbuf_addstr(&newname, n->head_name); break; case 1: - en += sprintf(en, "%s^", n->head_name); + strbuf_addf(&newname, "%s^", n->head_name); break; default: - en += sprintf(en, "%s~%d", - n->head_name, n->generation); + strbuf_addf(&newname, "%s~%d", + n->head_name, n->generation); break; } if (nth == 1) - en += sprintf(en, "^"); + strbuf_addch(&newname, '^'); else - en += sprintf(en, "^%d", nth); - name_commit(p, xstrdup(newname), 0); + strbuf_addf(&newname, "^%d", nth); + name_commit(p, strbuf_detach(&newname, NULL), 0); i++; name_first_parent_chain(p); } @@ -211,7 +201,7 @@ static void join_revs(struct commit_list **list_p, while (*list_p) { struct commit_list *parents; int still_interesting = !!interesting(*list_p); - struct commit *commit = pop_one_commit(list_p); + struct commit *commit = pop_commit(list_p); int flags = commit->object.flags & all_mask; if (!still_interesting && extra <= 0) @@ -228,8 +218,7 @@ static void join_revs(struct commit_list **list_p, parents = parents->next; if ((this_flag & flags) == flags) continue; - if (!p->object.parsed) - parse_commit(p); + parse_commit(p); if (mark_seen(p, seen_p) && !still_interesting) extra--; p->object.flags |= flags; @@ -286,7 +275,7 @@ static void show_one_commit(struct commit *commit, int no_name) pp_commit_easy(CMIT_FMT_ONELINE, commit, &pretty); pretty_str = pretty.buf; } - if (!prefixcmp(pretty_str, "[PATCH] ")) + if (starts_with(pretty_str, "[PATCH] ")) pretty_str += 8; if (!no_name) { @@ -302,7 +291,7 @@ static void show_one_commit(struct commit *commit, int no_name) } else printf("[%s] ", - find_unique_abbrev(commit->object.sha1, + find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV)); } puts(pretty_str); @@ -368,10 +357,10 @@ static void sort_ref_range(int bottom, int top) compare_ref_name); } -static int append_ref(const char *refname, const unsigned char *sha1, +static int append_ref(const char *refname, const struct object_id *oid, int allow_dups) { - struct commit *commit = lookup_commit_reference_gently(sha1, 1); + struct commit *commit = lookup_commit_reference_gently(oid->hash, 1); int i; if (!commit) @@ -393,39 +382,42 @@ static int append_ref(const char *refname, const unsigned char *sha1, return 0; } -static int append_head_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) +static int append_head_ref(const char *refname, const struct object_id *oid, + int flag, void *cb_data) { - unsigned char tmp[20]; + struct object_id tmp; int ofs = 11; - if (prefixcmp(refname, "refs/heads/")) + if (!starts_with(refname, "refs/heads/")) return 0; /* If both heads/foo and tags/foo exists, get_sha1 would * get confused. */ - if (get_sha1(refname + ofs, tmp) || hashcmp(tmp, sha1)) + if (get_sha1(refname + ofs, tmp.hash) || oidcmp(&tmp, oid)) ofs = 5; - return append_ref(refname + ofs, sha1, 0); + return append_ref(refname + ofs, oid, 0); } -static int append_remote_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) +static int append_remote_ref(const char *refname, const struct object_id *oid, + int flag, void *cb_data) { - unsigned char tmp[20]; + struct object_id tmp; int ofs = 13; - if (prefixcmp(refname, "refs/remotes/")) + if (!starts_with(refname, "refs/remotes/")) return 0; /* If both heads/foo and tags/foo exists, get_sha1 would * get confused. */ - if (get_sha1(refname + ofs, tmp) || hashcmp(tmp, sha1)) + if (get_sha1(refname + ofs, tmp.hash) || oidcmp(&tmp, oid)) ofs = 5; - return append_ref(refname + ofs, sha1, 0); + return append_ref(refname + ofs, oid, 0); } -static int append_tag_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) +static int append_tag_ref(const char *refname, const struct object_id *oid, + int flag, void *cb_data) { - if (prefixcmp(refname, "refs/tags/")) + if (!starts_with(refname, "refs/tags/")) return 0; - return append_ref(refname + 5, sha1, 0); + return append_ref(refname + 5, oid, 0); } static const char *match_ref_pattern = NULL; @@ -439,7 +431,8 @@ static int count_slash(const char *s) return cnt; } -static int append_matching_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) +static int append_matching_ref(const char *refname, const struct object_id *oid, + int flag, void *cb_data) { /* we want to allow pattern hold/<asterisk> to show all * branches under refs/heads/hold/, and v0.99.9? to show @@ -452,24 +445,26 @@ static int append_matching_ref(const char *refname, const unsigned char *sha1, i slash--; if (!*tail) return 0; - if (fnmatch(match_ref_pattern, tail, 0)) + if (wildmatch(match_ref_pattern, tail, 0, NULL)) return 0; - if (!prefixcmp(refname, "refs/heads/")) - return append_head_ref(refname, sha1, flag, cb_data); - if (!prefixcmp(refname, "refs/tags/")) - return append_tag_ref(refname, sha1, flag, cb_data); - return append_ref(refname, sha1, 0); + if (starts_with(refname, "refs/heads/")) + return append_head_ref(refname, oid, flag, cb_data); + if (starts_with(refname, "refs/tags/")) + return append_tag_ref(refname, oid, flag, cb_data); + return append_ref(refname, oid, 0); } static void snarf_refs(int head, int remotes) { if (head) { int orig_cnt = ref_name_cnt; + for_each_ref(append_head_ref, NULL); sort_ref_range(orig_cnt, ref_name_cnt); } if (remotes) { int orig_cnt = ref_name_cnt; + for_each_ref(append_remote_ref, NULL); sort_ref_range(orig_cnt, ref_name_cnt); } @@ -481,11 +476,11 @@ static int rev_is_head(char *head, int headlen, char *name, if ((!head[0]) || (head_sha1 && sha1 && hashcmp(head_sha1, sha1))) return 0; - if (!prefixcmp(head, "refs/heads/")) + if (starts_with(head, "refs/heads/")) head += 11; - if (!prefixcmp(name, "refs/heads/")) + if (starts_with(name, "refs/heads/")) name += 11; - else if (!prefixcmp(name, "heads/")) + else if (starts_with(name, "heads/")) name += 6; return !strcmp(head, name); } @@ -497,11 +492,11 @@ static int show_merge_base(struct commit_list *seen, int num_rev) int exit_status = 1; while (seen) { - struct commit *commit = pop_one_commit(&seen); + struct commit *commit = pop_commit(&seen); int flags = commit->object.flags & all_mask; if (!(flags & UNINTERESTING) && ((flags & all_revs) == all_revs)) { - puts(sha1_to_hex(commit->object.sha1)); + puts(oid_to_hex(&commit->object.oid)); exit_status = 0; commit->object.flags |= UNINTERESTING; } @@ -521,7 +516,7 @@ static int show_independent(struct commit **rev, unsigned int flag = rev_mask[i]; if (commit->object.flags == flag) - puts(sha1_to_hex(commit->object.sha1)); + puts(oid_to_hex(&commit->object.oid)); commit->object.flags |= UNINTERESTING; } return 0; @@ -529,14 +524,15 @@ static int show_independent(struct commit **rev, static void append_one_rev(const char *av) { - unsigned char revkey[20]; - if (!get_sha1(av, revkey)) { - append_ref(av, revkey, 0); + struct object_id revkey; + if (!get_sha1(av, revkey.hash)) { + append_ref(av, &revkey, 0); return; } if (strchr(av, '*') || strchr(av, '?') || strchr(av, '[')) { /* glob style match */ int saved_matches = ref_name_cnt; + match_ref_pattern = av; match_ref_slash = count_slash(av); for_each_ref(append_matching_ref, NULL); @@ -559,16 +555,9 @@ static int git_show_branch_config(const char *var, const char *value, void *cb) * default_arg is now passed to parse_options(), so we need to * mimic the real argv a bit better. */ - if (!default_num) { - default_alloc = 20; - default_arg = xcalloc(default_alloc, sizeof(*default_arg)); - default_arg[default_num++] = "show-branch"; - } else if (default_alloc <= default_num + 1) { - default_alloc = default_alloc * 3 / 2 + 20; - default_arg = xrealloc(default_arg, sizeof *default_arg * default_alloc); - } - default_arg[default_num++] = xstrdup(value); - default_arg[default_num] = NULL; + if (!default_args.argc) + argv_array_push(&default_args, "show-branch"); + argv_array_push(&default_args, value); return 0; } @@ -631,11 +620,11 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) int num_rev, i, extra = 0; int all_heads = 0, all_remotes = 0; int all_mask, all_revs; - int lifo = 1; + enum rev_sort_order sort_order = REV_SORT_IN_GRAPH_ORDER; char head[128]; const char *head_p; int head_len; - unsigned char head_sha1[20]; + struct object_id head_oid; int merge_base = 0; int independent = 0; int no_name = 0; @@ -647,37 +636,39 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) int dense = 1; const char *reflog_base = NULL; struct option builtin_show_branch_options[] = { - OPT_BOOLEAN('a', "all", &all_heads, - "show remote-tracking and local branches"), - OPT_BOOLEAN('r', "remotes", &all_remotes, - "show remote-tracking branches"), + OPT_BOOL('a', "all", &all_heads, + N_("show remote-tracking and local branches")), + OPT_BOOL('r', "remotes", &all_remotes, + N_("show remote-tracking branches")), OPT__COLOR(&showbranch_use_color, - "color '*!+-' corresponding to the branch"), - { OPTION_INTEGER, 0, "more", &extra, "n", - "show <n> more commits after the common ancestor", + N_("color '*!+-' corresponding to the branch")), + { OPTION_INTEGER, 0, "more", &extra, N_("n"), + N_("show <n> more commits after the common ancestor"), PARSE_OPT_OPTARG, NULL, (intptr_t)1 }, - OPT_SET_INT(0, "list", &extra, "synonym to more=-1", -1), - OPT_BOOLEAN(0, "no-name", &no_name, "suppress naming strings"), - OPT_BOOLEAN(0, "current", &with_current_branch, - "include the current branch"), - OPT_BOOLEAN(0, "sha1-name", &sha1_name, - "name commits with their object names"), - OPT_BOOLEAN(0, "merge-base", &merge_base, - "show possible merge bases"), - OPT_BOOLEAN(0, "independent", &independent, - "show refs unreachable from any other ref"), - OPT_BOOLEAN(0, "topo-order", &lifo, - "show commits in topological order"), - OPT_BOOLEAN(0, "topics", &topics, - "show only commits not on the first branch"), + OPT_SET_INT(0, "list", &extra, N_("synonym to more=-1"), -1), + OPT_BOOL(0, "no-name", &no_name, N_("suppress naming strings")), + OPT_BOOL(0, "current", &with_current_branch, + N_("include the current branch")), + OPT_BOOL(0, "sha1-name", &sha1_name, + N_("name commits with their object names")), + OPT_BOOL(0, "merge-base", &merge_base, + N_("show possible merge bases")), + OPT_BOOL(0, "independent", &independent, + N_("show refs unreachable from any other ref")), + OPT_SET_INT(0, "topo-order", &sort_order, + N_("show commits in topological order"), + REV_SORT_IN_GRAPH_ORDER), + OPT_BOOL(0, "topics", &topics, + N_("show only commits not on the first branch")), OPT_SET_INT(0, "sparse", &dense, - "show merges reachable from only one tip", 0), - OPT_SET_INT(0, "date-order", &lifo, - "show commits where no parent comes before its " - "children", 0), - { OPTION_CALLBACK, 'g', "reflog", &reflog_base, "<n>[,<base>]", - "show <n> most recent ref-log entries starting at " - "base", + N_("show merges reachable from only one tip"), 0), + OPT_SET_INT(0, "date-order", &sort_order, + N_("topologically sort, maintaining date order " + "where possible"), + REV_SORT_BY_COMMIT_DATE), + { OPTION_CALLBACK, 'g', "reflog", &reflog_base, N_("<n>[,<base>]"), + N_("show <n> most recent ref-log entries starting at " + "base"), PARSE_OPT_OPTARG | PARSE_OPT_LITERAL_ARGHELP, parse_reflog_param }, OPT_END() @@ -686,9 +677,9 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) git_config(git_show_branch_config, NULL); /* If nothing is specified, try the default first */ - if (ac == 1 && default_num) { - ac = default_num; - av = default_arg; + if (ac == 1 && default_args.argc) { + ac = default_args.argc; + av = default_args.argv; } ac = parse_options(ac, av, prefix, builtin_show_branch_options, @@ -715,22 +706,26 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) } /* If nothing is specified, show all branches by default */ - if (ac + all_heads + all_remotes == 0) + if (ac <= topics && all_heads + all_remotes == 0) all_heads = 1; if (reflog) { - unsigned char sha1[20]; - char nth_desc[256]; + struct object_id oid; char *ref; int base = 0; + unsigned int flags = 0; if (ac == 0) { static const char *fake_av[2]; - fake_av[0] = resolve_refdup("HEAD", sha1, 1, NULL); + fake_av[0] = resolve_refdup("HEAD", + RESOLVE_REF_READING, + oid.hash, NULL); fake_av[1] = NULL; av = fake_av; ac = 1; + if (!*av) + die("no branches given, and HEAD is not valid"); } if (ac != 1) die("--reflog option needs one branch name"); @@ -738,7 +733,7 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) if (MAX_REVS < reflog) die("Only %d entries can be shown at one time.", MAX_REVS); - if (!dwim_ref(*av, strlen(*av), sha1, &ref)) + if (!dwim_ref(*av, strlen(*av), oid.hash, &ref)) die("No such ref %s", *av); /* Has the base been specified? */ @@ -749,18 +744,19 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) /* Ah, that is a date spec... */ unsigned long at; at = approxidate(reflog_base); - read_ref_at(ref, at, -1, sha1, NULL, + read_ref_at(ref, flags, at, -1, oid.hash, NULL, NULL, NULL, &base); } } for (i = 0; i < reflog; i++) { - char *logmsg, *m; + char *logmsg; + char *nth_desc; const char *msg; unsigned long timestamp; int tz; - if (read_ref_at(ref, 0, base+i, sha1, &logmsg, + if (read_ref_at(ref, flags, 0, base+i, oid.hash, &logmsg, ×tamp, &tz, NULL)) { reflog = i; break; @@ -770,26 +766,29 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) msg = "(none)"; else msg++; - m = xmalloc(strlen(msg) + 200); - sprintf(m, "(%s) %s", - show_date(timestamp, tz, 1), - msg); - reflog_msg[i] = m; + reflog_msg[i] = xstrfmt("(%s) %s", + show_date(timestamp, tz, + DATE_MODE(RELATIVE)), + msg); free(logmsg); - sprintf(nth_desc, "%s@{%d}", *av, base+i); - append_ref(nth_desc, sha1, 1); + + nth_desc = xstrfmt("%s@{%d}", *av, base+i); + append_ref(nth_desc, &oid, 1); + free(nth_desc); } + free(ref); } - else if (all_heads + all_remotes) - snarf_refs(all_heads, all_remotes); else { while (0 < ac) { append_one_rev(*av); ac--; av++; } + if (all_heads + all_remotes) + snarf_refs(all_heads, all_remotes); } - head_p = resolve_ref_unsafe("HEAD", head_sha1, 1, NULL); + head_p = resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, + head_oid.hash, NULL); if (head_p) { head_len = strlen(head_p); memcpy(head, head_p, head_len + 1); @@ -808,11 +807,11 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) if (rev_is_head(head, head_len, ref_name[i], - head_sha1, NULL)) + head_oid.hash, NULL)) has_head++; } if (!has_head) { - int offset = !prefixcmp(head, "refs/heads/") ? 11 : 0; + int offset = starts_with(head, "refs/heads/") ? 11 : 0; append_one_rev(head + offset); } } @@ -823,17 +822,17 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) } for (num_rev = 0; ref_name[num_rev]; num_rev++) { - unsigned char revkey[20]; + struct object_id revkey; unsigned int flag = 1u << (num_rev + REV_SHIFT); if (MAX_REVS <= num_rev) die("cannot handle more than %d revs.", MAX_REVS); - if (get_sha1(ref_name[num_rev], revkey)) + if (get_sha1(ref_name[num_rev], revkey.hash)) die("'%s' is not a valid ref.", ref_name[num_rev]); - commit = lookup_commit_reference(revkey); + commit = lookup_commit_reference(revkey.hash); if (!commit) die("cannot find commit %s (%s)", - ref_name[num_rev], revkey); + ref_name[num_rev], oid_to_hex(&revkey)); parse_commit(commit); mark_seen(commit, &seen); @@ -867,8 +866,8 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) int is_head = rev_is_head(head, head_len, ref_name[i], - head_sha1, - rev[i]->object.sha1); + head_oid.hash, + rev[i]->object.oid.hash); if (extra < 0) printf("%c [%s] ", is_head ? '*' : ' ', ref_name[i]); @@ -901,7 +900,7 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) exit(0); /* Sort topologically */ - sort_in_topological_order(&seen, lifo); + sort_in_topological_order(&seen, sort_order); /* Give names to commits */ if (!sha1_name && !no_name) @@ -911,7 +910,7 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) all_revs = all_mask & ~((1u << REV_SHIFT) - 1); while (seen) { - struct commit *commit = pop_one_commit(&seen); + struct commit *commit = pop_commit(&seen); int this_flag = commit->object.flags; int is_merge_point = ((this_flag & all_revs) == all_revs); diff --git a/builtin/show-ref.c b/builtin/show-ref.c index 3911661900..6d4e669002 100644 --- a/builtin/show-ref.c +++ b/builtin/show-ref.c @@ -7,8 +7,8 @@ #include "parse-options.h" static const char * const show_ref_usage[] = { - "git show-ref [-q|--quiet] [--verify] [--head] [-d|--dereference] [-s|--hash[=<n>]] [--abbrev[=<n>]] [--tags] [--heads] [--] [pattern*] ", - "git show-ref --exclude-existing[=pattern] < ref-list", + N_("git show-ref [-q | --quiet] [--verify] [--head] [-d | --dereference] [-s | --hash[=<n>]] [--abbrev[=<n>]] [--tags] [--heads] [--] [<pattern>...]"), + N_("git show-ref --exclude-existing[=<pattern>]"), NULL }; @@ -17,26 +17,29 @@ static int deref_tags, show_head, tags_only, heads_only, found_match, verify, static const char **pattern; static const char *exclude_existing_arg; -static void show_one(const char *refname, const unsigned char *sha1) +static void show_one(const char *refname, const struct object_id *oid) { - const char *hex = find_unique_abbrev(sha1, abbrev); + const char *hex = find_unique_abbrev(oid->hash, abbrev); if (hash_only) printf("%s\n", hex); else printf("%s %s\n", hex, refname); } -static int show_ref(const char *refname, const unsigned char *sha1, int flag, void *cbdata) +static int show_ref(const char *refname, const struct object_id *oid, + int flag, void *cbdata) { - struct object *obj; const char *hex; - unsigned char peeled[20]; + struct object_id peeled; + + if (show_head && !strcmp(refname, "HEAD")) + goto match; if (tags_only || heads_only) { int match; - match = heads_only && !prefixcmp(refname, "refs/heads/"); - match |= tags_only && !prefixcmp(refname, "refs/tags/"); + match = heads_only && starts_with(refname, "refs/heads/"); + match |= tags_only && starts_with(refname, "refs/tags/"); if (!match) return 0; } @@ -67,42 +70,27 @@ match: * detect and return error if the repository is corrupt and * ref points at a nonexistent object. */ - if (!has_sha1_file(sha1)) + if (!has_sha1_file(oid->hash)) die("git show-ref: bad ref %s (%s)", refname, - sha1_to_hex(sha1)); + oid_to_hex(oid)); if (quiet) return 0; - show_one(refname, sha1); + show_one(refname, oid); if (!deref_tags) return 0; - if ((flag & REF_ISPACKED) && !peel_ref(refname, peeled)) { - if (!is_null_sha1(peeled)) { - hex = find_unique_abbrev(peeled, abbrev); - printf("%s %s^{}\n", hex, refname); - } - } - else { - obj = parse_object(sha1); - if (!obj) - die("git show-ref: bad ref %s (%s)", refname, - sha1_to_hex(sha1)); - if (obj->type == OBJ_TAG) { - obj = deref_tag(obj, refname, 0); - if (!obj) - die("git show-ref: bad tag at ref %s (%s)", refname, - sha1_to_hex(sha1)); - hex = find_unique_abbrev(obj->sha1, abbrev); - printf("%s %s^{}\n", hex, refname); - } + if (!peel_ref(refname, peeled.hash)) { + hex = find_unique_abbrev(peeled.hash, abbrev); + printf("%s %s^{}\n", hex, refname); } return 0; } -static int add_existing(const char *refname, const unsigned char *sha1, int flag, void *cbdata) +static int add_existing(const char *refname, const struct object_id *oid, + int flag, void *cbdata) { struct string_list *list = (struct string_list *)cbdata; string_list_insert(list, refname); @@ -120,7 +108,7 @@ static int add_existing(const char *refname, const unsigned char *sha1, int flag */ static int exclude_existing(const char *match) { - static struct string_list existing_refs = STRING_LIST_INIT_NODUP; + static struct string_list existing_refs = STRING_LIST_INIT_DUP; char buf[1024]; int matchlen = match ? strlen(match) : 0; @@ -173,43 +161,33 @@ static int exclude_existing_callback(const struct option *opt, const char *arg, return 0; } -static int help_callback(const struct option *opt, const char *arg, int unset) -{ - return -1; -} - static const struct option show_ref_options[] = { - OPT_BOOLEAN(0, "tags", &tags_only, "only show tags (can be combined with heads)"), - OPT_BOOLEAN(0, "heads", &heads_only, "only show heads (can be combined with tags)"), - OPT_BOOLEAN(0, "verify", &verify, "stricter reference checking, " - "requires exact ref path"), - { OPTION_BOOLEAN, 'h', NULL, &show_head, NULL, - "show the HEAD reference", - PARSE_OPT_NOARG | PARSE_OPT_HIDDEN }, - OPT_BOOLEAN(0, "head", &show_head, "show the HEAD reference"), - OPT_BOOLEAN('d', "dereference", &deref_tags, - "dereference tags into object IDs"), - { OPTION_CALLBACK, 's', "hash", &abbrev, "n", - "only show SHA1 hash using <n> digits", + OPT_BOOL(0, "tags", &tags_only, N_("only show tags (can be combined with heads)")), + OPT_BOOL(0, "heads", &heads_only, N_("only show heads (can be combined with tags)")), + OPT_BOOL(0, "verify", &verify, N_("stricter reference checking, " + "requires exact ref path")), + OPT_HIDDEN_BOOL('h', NULL, &show_head, + N_("show the HEAD reference, even if it would be filtered out")), + OPT_BOOL(0, "head", &show_head, + N_("show the HEAD reference, even if it would be filtered out")), + OPT_BOOL('d', "dereference", &deref_tags, + N_("dereference tags into object IDs")), + { OPTION_CALLBACK, 's', "hash", &abbrev, N_("n"), + N_("only show SHA1 hash using <n> digits"), PARSE_OPT_OPTARG, &hash_callback }, OPT__ABBREV(&abbrev), OPT__QUIET(&quiet, - "do not print results to stdout (useful with --verify)"), + N_("do not print results to stdout (useful with --verify)")), { OPTION_CALLBACK, 0, "exclude-existing", &exclude_existing_arg, - "pattern", "show refs from stdin that aren't in local repository", + N_("pattern"), N_("show refs from stdin that aren't in local repository"), PARSE_OPT_OPTARG | PARSE_OPT_NONEG, exclude_existing_callback }, - { OPTION_CALLBACK, 0, "help-all", NULL, NULL, "show usage", - PARSE_OPT_HIDDEN | PARSE_OPT_NOARG, help_callback }, OPT_END() }; int cmd_show_ref(int argc, const char **argv, const char *prefix) { - if (argc == 2 && !strcmp(argv[1], "-h")) - usage_with_options(show_ref_usage, show_ref_options); - argc = parse_options(argc, argv, prefix, show_ref_options, - show_ref_usage, PARSE_OPT_NO_INTERNAL_HELP); + show_ref_usage, 0); if (exclude_arg) return exclude_existing(exclude_existing_arg); @@ -222,12 +200,12 @@ int cmd_show_ref(int argc, const char **argv, const char *prefix) if (!pattern) die("--verify requires a reference"); while (*pattern) { - unsigned char sha1[20]; + struct object_id oid; - if (!prefixcmp(*pattern, "refs/") && - !read_ref(*pattern, sha1)) { + if (starts_with(*pattern, "refs/") && + !read_ref(*pattern, oid.hash)) { if (!quiet) - show_one(*pattern, sha1); + show_one(*pattern, &oid); } else if (!quiet) die("'%s' - not a valid ref", *pattern); diff --git a/builtin/stripspace.c b/builtin/stripspace.c index f16986c0ae..15e716ef43 100644 --- a/builtin/stripspace.c +++ b/builtin/stripspace.c @@ -1,86 +1,59 @@ #include "builtin.h" #include "cache.h" +#include "parse-options.h" +#include "strbuf.h" -/* - * Returns the length of a line, without trailing spaces. - * - * If the line ends with newline, it will be removed too. - */ -static size_t cleanup(char *line, size_t len) +static void comment_lines(struct strbuf *buf) { - while (len) { - unsigned char c = line[len - 1]; - if (!isspace(c)) - break; - len--; - } + char *msg; + size_t len; - return len; + msg = strbuf_detach(buf, &len); + strbuf_add_commented_lines(buf, msg, len); + free(msg); } -/* - * Remove empty lines from the beginning and end - * and also trailing spaces from every line. - * - * Turn multiple consecutive empty lines between paragraphs - * into just one empty line. - * - * If the input has only empty lines and spaces, - * no output will be produced. - * - * If last line does not have a newline at the end, one is added. - * - * Enable skip_comments to skip every line starting with "#". - */ -void stripspace(struct strbuf *sb, int skip_comments) -{ - int empties = 0; - size_t i, j, len, newlen; - char *eol; - - /* We may have to add a newline. */ - strbuf_grow(sb, 1); - - for (i = j = 0; i < sb->len; i += len, j += newlen) { - eol = memchr(sb->buf + i, '\n', sb->len - i); - len = eol ? eol - (sb->buf + i) + 1 : sb->len - i; - - if (skip_comments && len && sb->buf[i] == '#') { - newlen = 0; - continue; - } - newlen = cleanup(sb->buf + i, len); +static const char * const stripspace_usage[] = { + N_("git stripspace [-s | --strip-comments]"), + N_("git stripspace [-c | --comment-lines]"), + NULL +}; - /* Not just an empty line? */ - if (newlen) { - if (empties > 0 && j > 0) - sb->buf[j++] = '\n'; - empties = 0; - memmove(sb->buf + j, sb->buf + i, newlen); - sb->buf[newlen + j++] = '\n'; - } else { - empties++; - } - } - - strbuf_setlen(sb, j); -} +enum stripspace_mode { + STRIP_DEFAULT = 0, + STRIP_COMMENTS, + COMMENT_LINES +}; int cmd_stripspace(int argc, const char **argv, const char *prefix) { struct strbuf buf = STRBUF_INIT; - int strip_comments = 0; + enum stripspace_mode mode = STRIP_DEFAULT; + + const struct option options[] = { + OPT_CMDMODE('s', "strip-comments", &mode, + N_("skip and remove all lines starting with comment character"), + STRIP_COMMENTS), + OPT_CMDMODE('c', "comment-lines", &mode, + N_("prepend comment character and space to each line"), + COMMENT_LINES), + OPT_END() + }; + + argc = parse_options(argc, argv, prefix, options, stripspace_usage, 0); + if (argc) + usage_with_options(stripspace_usage, options); - if (argc == 2 && (!strcmp(argv[1], "-s") || - !strcmp(argv[1], "--strip-comments"))) - strip_comments = 1; - else if (argc > 1) - usage("git stripspace [-s | --strip-comments] < input"); + if (mode == STRIP_COMMENTS || mode == COMMENT_LINES) + git_config(git_default_config, NULL); if (strbuf_read(&buf, 0, 1024) < 0) die_errno("could not read the input"); - stripspace(&buf, strip_comments); + if (mode == STRIP_DEFAULT || mode == STRIP_COMMENTS) + strbuf_stripspace(&buf, mode == STRIP_COMMENTS); + else + comment_lines(&buf); write_or_die(1, buf.buf, buf.len); strbuf_release(&buf); diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c new file mode 100644 index 0000000000..926d205162 --- /dev/null +++ b/builtin/submodule--helper.c @@ -0,0 +1,874 @@ +#include "builtin.h" +#include "cache.h" +#include "parse-options.h" +#include "quote.h" +#include "pathspec.h" +#include "dir.h" +#include "utf8.h" +#include "submodule.h" +#include "submodule-config.h" +#include "string-list.h" +#include "run-command.h" +#include "remote.h" +#include "refs.h" +#include "connect.h" + +static char *get_default_remote(void) +{ + char *dest = NULL, *ret; + unsigned char sha1[20]; + struct strbuf sb = STRBUF_INIT; + const char *refname = resolve_ref_unsafe("HEAD", 0, sha1, NULL); + + if (!refname) + die(_("No such ref: %s"), "HEAD"); + + /* detached HEAD */ + if (!strcmp(refname, "HEAD")) + return xstrdup("origin"); + + if (!skip_prefix(refname, "refs/heads/", &refname)) + die(_("Expecting a full ref name, got %s"), refname); + + strbuf_addf(&sb, "branch.%s.remote", refname); + if (git_config_get_string(sb.buf, &dest)) + ret = xstrdup("origin"); + else + ret = dest; + + strbuf_release(&sb); + return ret; +} + +static int starts_with_dot_slash(const char *str) +{ + return str[0] == '.' && is_dir_sep(str[1]); +} + +static int starts_with_dot_dot_slash(const char *str) +{ + return str[0] == '.' && str[1] == '.' && is_dir_sep(str[2]); +} + +/* + * Returns 1 if it was the last chop before ':'. + */ +static int chop_last_dir(char **remoteurl, int is_relative) +{ + char *rfind = find_last_dir_sep(*remoteurl); + if (rfind) { + *rfind = '\0'; + return 0; + } + + rfind = strrchr(*remoteurl, ':'); + if (rfind) { + *rfind = '\0'; + return 1; + } + + if (is_relative || !strcmp(".", *remoteurl)) + die(_("cannot strip one component off url '%s'"), + *remoteurl); + + free(*remoteurl); + *remoteurl = xstrdup("."); + return 0; +} + +/* + * The `url` argument is the URL that navigates to the submodule origin + * repo. When relative, this URL is relative to the superproject origin + * URL repo. The `up_path` argument, if specified, is the relative + * path that navigates from the submodule working tree to the superproject + * working tree. Returns the origin URL of the submodule. + * + * Return either an absolute URL or filesystem path (if the superproject + * origin URL is an absolute URL or filesystem path, respectively) or a + * relative file system path (if the superproject origin URL is a relative + * file system path). + * + * When the output is a relative file system path, the path is either + * relative to the submodule working tree, if up_path is specified, or to + * the superproject working tree otherwise. + * + * NEEDSWORK: This works incorrectly on the domain and protocol part. + * remote_url url outcome expectation + * http://a.com/b ../c http://a.com/c as is + * http://a.com/b ../../c http://c error out + * http://a.com/b ../../../c http:/c error out + * http://a.com/b ../../../../c http:c error out + * http://a.com/b ../../../../../c .:c error out + * NEEDSWORK: Given how chop_last_dir() works, this function is broken + * when a local part has a colon in its path component, too. + */ +static char *relative_url(const char *remote_url, + const char *url, + const char *up_path) +{ + int is_relative = 0; + int colonsep = 0; + char *out; + char *remoteurl = xstrdup(remote_url); + struct strbuf sb = STRBUF_INIT; + size_t len = strlen(remoteurl); + + if (is_dir_sep(remoteurl[len])) + remoteurl[len] = '\0'; + + if (!url_is_local_not_ssh(remoteurl) || is_absolute_path(remoteurl)) + is_relative = 0; + else { + is_relative = 1; + /* + * Prepend a './' to ensure all relative + * remoteurls start with './' or '../' + */ + if (!starts_with_dot_slash(remoteurl) && + !starts_with_dot_dot_slash(remoteurl)) { + strbuf_reset(&sb); + strbuf_addf(&sb, "./%s", remoteurl); + free(remoteurl); + remoteurl = strbuf_detach(&sb, NULL); + } + } + /* + * When the url starts with '../', remove that and the + * last directory in remoteurl. + */ + while (url) { + if (starts_with_dot_dot_slash(url)) { + url += 3; + colonsep |= chop_last_dir(&remoteurl, is_relative); + } else if (starts_with_dot_slash(url)) + url += 2; + else + break; + } + strbuf_reset(&sb); + strbuf_addf(&sb, "%s%s%s", remoteurl, colonsep ? ":" : "/", url); + free(remoteurl); + + if (starts_with_dot_slash(sb.buf)) + out = xstrdup(sb.buf + 2); + else + out = xstrdup(sb.buf); + strbuf_reset(&sb); + + if (!up_path || !is_relative) + return out; + + strbuf_addf(&sb, "%s%s", up_path, out); + free(out); + return strbuf_detach(&sb, NULL); +} + +static int resolve_relative_url(int argc, const char **argv, const char *prefix) +{ + char *remoteurl = NULL; + char *remote = get_default_remote(); + const char *up_path = NULL; + char *res; + const char *url; + struct strbuf sb = STRBUF_INIT; + + if (argc != 2 && argc != 3) + die("resolve-relative-url only accepts one or two arguments"); + + url = argv[1]; + strbuf_addf(&sb, "remote.%s.url", remote); + free(remote); + + if (git_config_get_string(sb.buf, &remoteurl)) + /* the repository is its own authoritative upstream */ + remoteurl = xgetcwd(); + + if (argc == 3) + up_path = argv[2]; + + res = relative_url(remoteurl, url, up_path); + puts(res); + free(res); + free(remoteurl); + return 0; +} + +static int resolve_relative_url_test(int argc, const char **argv, const char *prefix) +{ + char *remoteurl, *res; + const char *up_path, *url; + + if (argc != 4) + die("resolve-relative-url-test only accepts three arguments: <up_path> <remoteurl> <url>"); + + up_path = argv[1]; + remoteurl = xstrdup(argv[2]); + url = argv[3]; + + if (!strcmp(up_path, "(null)")) + up_path = NULL; + + res = relative_url(remoteurl, url, up_path); + puts(res); + free(res); + free(remoteurl); + return 0; +} + +struct module_list { + const struct cache_entry **entries; + int alloc, nr; +}; +#define MODULE_LIST_INIT { NULL, 0, 0 } + +static int module_list_compute(int argc, const char **argv, + const char *prefix, + struct pathspec *pathspec, + struct module_list *list) +{ + int i, result = 0; + char *ps_matched = NULL; + parse_pathspec(pathspec, 0, + PATHSPEC_PREFER_FULL | + PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP, + prefix, argv); + + if (pathspec->nr) + ps_matched = xcalloc(pathspec->nr, 1); + + if (read_cache() < 0) + die(_("index file corrupt")); + + for (i = 0; i < active_nr; i++) { + const struct cache_entry *ce = active_cache[i]; + + if (!match_pathspec(pathspec, ce->name, ce_namelen(ce), + 0, ps_matched, 1) || + !S_ISGITLINK(ce->ce_mode)) + continue; + + ALLOC_GROW(list->entries, list->nr + 1, list->alloc); + list->entries[list->nr++] = ce; + while (i + 1 < active_nr && + !strcmp(ce->name, active_cache[i + 1]->name)) + /* + * Skip entries with the same name in different stages + * to make sure an entry is returned only once. + */ + i++; + } + + if (ps_matched && report_path_error(ps_matched, pathspec, prefix)) + result = -1; + + free(ps_matched); + + return result; +} + +static int module_list(int argc, const char **argv, const char *prefix) +{ + int i; + struct pathspec pathspec; + struct module_list list = MODULE_LIST_INIT; + + struct option module_list_options[] = { + OPT_STRING(0, "prefix", &prefix, + N_("path"), + N_("alternative anchor for relative paths")), + OPT_END() + }; + + const char *const git_submodule_helper_usage[] = { + N_("git submodule--helper list [--prefix=<path>] [<path>...]"), + NULL + }; + + argc = parse_options(argc, argv, prefix, module_list_options, + git_submodule_helper_usage, 0); + + if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0) + return 1; + + for (i = 0; i < list.nr; i++) { + const struct cache_entry *ce = list.entries[i]; + + if (ce_stage(ce)) + printf("%06o %s U\t", ce->ce_mode, sha1_to_hex(null_sha1)); + else + printf("%06o %s %d\t", ce->ce_mode, sha1_to_hex(ce->sha1), ce_stage(ce)); + + utf8_fprintf(stdout, "%s\n", ce->name); + } + return 0; +} + +static void init_submodule(const char *path, const char *prefix, int quiet) +{ + const struct submodule *sub; + struct strbuf sb = STRBUF_INIT; + char *upd = NULL, *url = NULL, *displaypath; + + /* Only loads from .gitmodules, no overlay with .git/config */ + gitmodules_config(); + + if (prefix) { + strbuf_addf(&sb, "%s%s", prefix, path); + displaypath = strbuf_detach(&sb, NULL); + } else + displaypath = xstrdup(path); + + sub = submodule_from_path(null_sha1, path); + + if (!sub) + die(_("No url found for submodule path '%s' in .gitmodules"), + displaypath); + + /* + * Copy url setting when it is not set yet. + * To look up the url in .git/config, we must not fall back to + * .gitmodules, so look it up directly. + */ + strbuf_reset(&sb); + strbuf_addf(&sb, "submodule.%s.url", sub->name); + if (git_config_get_string(sb.buf, &url)) { + url = xstrdup(sub->url); + + if (!url) + die(_("No url found for submodule path '%s' in .gitmodules"), + displaypath); + + /* Possibly a url relative to parent */ + if (starts_with_dot_dot_slash(url) || + starts_with_dot_slash(url)) { + char *remoteurl, *relurl; + char *remote = get_default_remote(); + struct strbuf remotesb = STRBUF_INIT; + strbuf_addf(&remotesb, "remote.%s.url", remote); + free(remote); + + if (git_config_get_string(remotesb.buf, &remoteurl)) + /* + * The repository is its own + * authoritative upstream + */ + remoteurl = xgetcwd(); + relurl = relative_url(remoteurl, url, NULL); + strbuf_release(&remotesb); + free(remoteurl); + free(url); + url = relurl; + } + + if (git_config_set_gently(sb.buf, url)) + die(_("Failed to register url for submodule path '%s'"), + displaypath); + if (!quiet) + fprintf(stderr, + _("Submodule '%s' (%s) registered for path '%s'\n"), + sub->name, url, displaypath); + } + + /* Copy "update" setting when it is not set yet */ + strbuf_reset(&sb); + strbuf_addf(&sb, "submodule.%s.update", sub->name); + if (git_config_get_string(sb.buf, &upd) && + sub->update_strategy.type != SM_UPDATE_UNSPECIFIED) { + if (sub->update_strategy.type == SM_UPDATE_COMMAND) { + fprintf(stderr, _("warning: command update mode suggested for submodule '%s'\n"), + sub->name); + upd = xstrdup("none"); + } else + upd = xstrdup(submodule_strategy_to_string(&sub->update_strategy)); + + if (git_config_set_gently(sb.buf, upd)) + die(_("Failed to register update mode for submodule path '%s'"), displaypath); + } + strbuf_release(&sb); + free(displaypath); + free(url); + free(upd); +} + +static int module_init(int argc, const char **argv, const char *prefix) +{ + struct pathspec pathspec; + struct module_list list = MODULE_LIST_INIT; + int quiet = 0; + int i; + + struct option module_init_options[] = { + OPT_STRING(0, "prefix", &prefix, + N_("path"), + N_("alternative anchor for relative paths")), + OPT__QUIET(&quiet, N_("Suppress output for initializing a submodule")), + OPT_END() + }; + + const char *const git_submodule_helper_usage[] = { + N_("git submodule--helper init [<path>]"), + NULL + }; + + argc = parse_options(argc, argv, prefix, module_init_options, + git_submodule_helper_usage, 0); + + if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0) + return 1; + + for (i = 0; i < list.nr; i++) + init_submodule(list.entries[i]->name, prefix, quiet); + + return 0; +} + +static int module_name(int argc, const char **argv, const char *prefix) +{ + const struct submodule *sub; + + if (argc != 2) + usage(_("git submodule--helper name <path>")); + + gitmodules_config(); + sub = submodule_from_path(null_sha1, argv[1]); + + if (!sub) + die(_("no submodule mapping found in .gitmodules for path '%s'"), + argv[1]); + + printf("%s\n", sub->name); + + return 0; +} + +static int clone_submodule(const char *path, const char *gitdir, const char *url, + const char *depth, const char *reference, int quiet) +{ + struct child_process cp; + child_process_init(&cp); + + argv_array_push(&cp.args, "clone"); + argv_array_push(&cp.args, "--no-checkout"); + if (quiet) + argv_array_push(&cp.args, "--quiet"); + if (depth && *depth) + argv_array_pushl(&cp.args, "--depth", depth, NULL); + if (reference && *reference) + argv_array_pushl(&cp.args, "--reference", reference, NULL); + if (gitdir && *gitdir) + argv_array_pushl(&cp.args, "--separate-git-dir", gitdir, NULL); + + argv_array_push(&cp.args, url); + argv_array_push(&cp.args, path); + + cp.git_cmd = 1; + prepare_submodule_repo_env(&cp.env_array); + cp.no_stdin = 1; + + return run_command(&cp); +} + +static int module_clone(int argc, const char **argv, const char *prefix) +{ + const char *name = NULL, *url = NULL; + const char *reference = NULL, *depth = NULL; + int quiet = 0; + FILE *submodule_dot_git; + char *p, *path = NULL, *sm_gitdir; + struct strbuf rel_path = STRBUF_INIT; + struct strbuf sb = STRBUF_INIT; + + struct option module_clone_options[] = { + OPT_STRING(0, "prefix", &prefix, + N_("path"), + N_("alternative anchor for relative paths")), + OPT_STRING(0, "path", &path, + N_("path"), + N_("where the new submodule will be cloned to")), + OPT_STRING(0, "name", &name, + N_("string"), + N_("name of the new submodule")), + OPT_STRING(0, "url", &url, + N_("string"), + N_("url where to clone the submodule from")), + OPT_STRING(0, "reference", &reference, + N_("string"), + N_("reference repository")), + OPT_STRING(0, "depth", &depth, + N_("string"), + N_("depth for shallow clones")), + OPT__QUIET(&quiet, "Suppress output for cloning a submodule"), + OPT_END() + }; + + const char *const git_submodule_helper_usage[] = { + N_("git submodule--helper clone [--prefix=<path>] [--quiet] " + "[--reference <repository>] [--name <name>] [--depth <depth>] " + "--url <url> --path <path>"), + NULL + }; + + argc = parse_options(argc, argv, prefix, module_clone_options, + git_submodule_helper_usage, 0); + + if (argc || !url || !path || !*path) + usage_with_options(git_submodule_helper_usage, + module_clone_options); + + strbuf_addf(&sb, "%s/modules/%s", get_git_dir(), name); + sm_gitdir = xstrdup(absolute_path(sb.buf)); + strbuf_reset(&sb); + + if (!is_absolute_path(path)) { + strbuf_addf(&sb, "%s/%s", get_git_work_tree(), path); + path = strbuf_detach(&sb, NULL); + } else + path = xstrdup(path); + + if (!file_exists(sm_gitdir)) { + if (safe_create_leading_directories_const(sm_gitdir) < 0) + die(_("could not create directory '%s'"), sm_gitdir); + if (clone_submodule(path, sm_gitdir, url, depth, reference, quiet)) + die(_("clone of '%s' into submodule path '%s' failed"), + url, path); + } else { + if (safe_create_leading_directories_const(path) < 0) + die(_("could not create directory '%s'"), path); + strbuf_addf(&sb, "%s/index", sm_gitdir); + unlink_or_warn(sb.buf); + strbuf_reset(&sb); + } + + /* Write a .git file in the submodule to redirect to the superproject. */ + strbuf_addf(&sb, "%s/.git", path); + if (safe_create_leading_directories_const(sb.buf) < 0) + die(_("could not create leading directories of '%s'"), sb.buf); + submodule_dot_git = fopen(sb.buf, "w"); + if (!submodule_dot_git) + die_errno(_("cannot open file '%s'"), sb.buf); + + fprintf_or_die(submodule_dot_git, "gitdir: %s\n", + relative_path(sm_gitdir, path, &rel_path)); + if (fclose(submodule_dot_git)) + die(_("could not close file %s"), sb.buf); + strbuf_reset(&sb); + strbuf_reset(&rel_path); + + /* Redirect the worktree of the submodule in the superproject's config */ + p = git_pathdup_submodule(path, "config"); + if (!p) + die(_("could not get submodule directory for '%s'"), path); + git_config_set_in_file(p, "core.worktree", + relative_path(path, sm_gitdir, &rel_path)); + strbuf_release(&sb); + strbuf_release(&rel_path); + free(sm_gitdir); + free(path); + free(p); + return 0; +} + +struct submodule_update_clone { + /* index into 'list', the list of submodules to look into for cloning */ + int current; + struct module_list list; + unsigned warn_if_uninitialized : 1; + + /* update parameter passed via commandline */ + struct submodule_update_strategy update; + + /* configuration parameters which are passed on to the children */ + int quiet; + const char *reference; + const char *depth; + const char *recursive_prefix; + const char *prefix; + + /* Machine-readable status lines to be consumed by git-submodule.sh */ + struct string_list projectlines; + + /* If we want to stop as fast as possible and return an error */ + unsigned quickstop : 1; +}; +#define SUBMODULE_UPDATE_CLONE_INIT {0, MODULE_LIST_INIT, 0, \ + SUBMODULE_UPDATE_STRATEGY_INIT, 0, NULL, NULL, NULL, NULL, \ + STRING_LIST_INIT_DUP, 0} + + +static void next_submodule_warn_missing(struct submodule_update_clone *suc, + struct strbuf *out, const char *displaypath) +{ + /* + * Only mention uninitialized submodules when their + * paths have been specified. + */ + if (suc->warn_if_uninitialized) { + strbuf_addf(out, + _("Submodule path '%s' not initialized"), + displaypath); + strbuf_addch(out, '\n'); + strbuf_addstr(out, + _("Maybe you want to use 'update --init'?")); + strbuf_addch(out, '\n'); + } +} + +/** + * Determine whether 'ce' needs to be cloned. If so, prepare the 'child' to + * run the clone. Returns 1 if 'ce' needs to be cloned, 0 otherwise. + */ +static int prepare_to_clone_next_submodule(const struct cache_entry *ce, + struct child_process *child, + struct submodule_update_clone *suc, + struct strbuf *out) +{ + const struct submodule *sub = NULL; + struct strbuf displaypath_sb = STRBUF_INIT; + struct strbuf sb = STRBUF_INIT; + const char *displaypath = NULL; + char *url = NULL; + int needs_cloning = 0; + + if (ce_stage(ce)) { + if (suc->recursive_prefix) + strbuf_addf(&sb, "%s/%s", suc->recursive_prefix, ce->name); + else + strbuf_addf(&sb, "%s", ce->name); + strbuf_addf(out, _("Skipping unmerged submodule %s"), sb.buf); + strbuf_addch(out, '\n'); + goto cleanup; + } + + sub = submodule_from_path(null_sha1, ce->name); + + if (suc->recursive_prefix) + displaypath = relative_path(suc->recursive_prefix, + ce->name, &displaypath_sb); + else + displaypath = ce->name; + + if (!sub) { + next_submodule_warn_missing(suc, out, displaypath); + goto cleanup; + } + + if (suc->update.type == SM_UPDATE_NONE + || (suc->update.type == SM_UPDATE_UNSPECIFIED + && sub->update_strategy.type == SM_UPDATE_NONE)) { + strbuf_addf(out, _("Skipping submodule '%s'"), displaypath); + strbuf_addch(out, '\n'); + goto cleanup; + } + + /* + * Looking up the url in .git/config. + * We must not fall back to .gitmodules as we only want + * to process configured submodules. + */ + strbuf_reset(&sb); + strbuf_addf(&sb, "submodule.%s.url", sub->name); + git_config_get_string(sb.buf, &url); + if (!url) { + next_submodule_warn_missing(suc, out, displaypath); + goto cleanup; + } + + strbuf_reset(&sb); + strbuf_addf(&sb, "%s/.git", ce->name); + needs_cloning = !file_exists(sb.buf); + + strbuf_reset(&sb); + strbuf_addf(&sb, "%06o %s %d %d\t%s\n", ce->ce_mode, + sha1_to_hex(ce->sha1), ce_stage(ce), + needs_cloning, ce->name); + string_list_append(&suc->projectlines, sb.buf); + + if (!needs_cloning) + goto cleanup; + + child->git_cmd = 1; + child->no_stdin = 1; + child->stdout_to_stderr = 1; + child->err = -1; + argv_array_push(&child->args, "submodule--helper"); + argv_array_push(&child->args, "clone"); + if (suc->quiet) + argv_array_push(&child->args, "--quiet"); + if (suc->prefix) + argv_array_pushl(&child->args, "--prefix", suc->prefix, NULL); + argv_array_pushl(&child->args, "--path", sub->path, NULL); + argv_array_pushl(&child->args, "--name", sub->name, NULL); + argv_array_pushl(&child->args, "--url", url, NULL); + if (suc->reference) + argv_array_push(&child->args, suc->reference); + if (suc->depth) + argv_array_push(&child->args, suc->depth); + +cleanup: + free(url); + strbuf_reset(&displaypath_sb); + strbuf_reset(&sb); + + return needs_cloning; +} + +static int update_clone_get_next_task(struct child_process *child, + struct strbuf *err, + void *suc_cb, + void **void_task_cb) +{ + struct submodule_update_clone *suc = suc_cb; + + for (; suc->current < suc->list.nr; suc->current++) { + const struct cache_entry *ce = suc->list.entries[suc->current]; + if (prepare_to_clone_next_submodule(ce, child, suc, err)) { + suc->current++; + return 1; + } + } + return 0; +} + +static int update_clone_start_failure(struct strbuf *err, + void *suc_cb, + void *void_task_cb) +{ + struct submodule_update_clone *suc = suc_cb; + suc->quickstop = 1; + return 1; +} + +static int update_clone_task_finished(int result, + struct strbuf *err, + void *suc_cb, + void *void_task_cb) +{ + struct submodule_update_clone *suc = suc_cb; + + if (!result) + return 0; + + suc->quickstop = 1; + return 1; +} + +static int update_clone(int argc, const char **argv, const char *prefix) +{ + const char *update = NULL; + int max_jobs = -1; + struct string_list_item *item; + struct pathspec pathspec; + struct submodule_update_clone suc = SUBMODULE_UPDATE_CLONE_INIT; + + struct option module_update_clone_options[] = { + OPT_STRING(0, "prefix", &prefix, + N_("path"), + N_("path into the working tree")), + OPT_STRING(0, "recursive-prefix", &suc.recursive_prefix, + N_("path"), + N_("path into the working tree, across nested " + "submodule boundaries")), + OPT_STRING(0, "update", &update, + N_("string"), + N_("rebase, merge, checkout or none")), + OPT_STRING(0, "reference", &suc.reference, N_("repo"), + N_("reference repository")), + OPT_STRING(0, "depth", &suc.depth, "<depth>", + N_("Create a shallow clone truncated to the " + "specified number of revisions")), + OPT_INTEGER('j', "jobs", &max_jobs, + N_("parallel jobs")), + OPT__QUIET(&suc.quiet, N_("don't print cloning progress")), + OPT_END() + }; + + const char *const git_submodule_helper_usage[] = { + N_("git submodule--helper update_clone [--prefix=<path>] [<path>...]"), + NULL + }; + suc.prefix = prefix; + + argc = parse_options(argc, argv, prefix, module_update_clone_options, + git_submodule_helper_usage, 0); + + if (update) + if (parse_submodule_update_strategy(update, &suc.update) < 0) + die(_("bad value for update parameter")); + + if (module_list_compute(argc, argv, prefix, &pathspec, &suc.list) < 0) + return 1; + + if (pathspec.nr) + suc.warn_if_uninitialized = 1; + + /* Overlay the parsed .gitmodules file with .git/config */ + gitmodules_config(); + git_config(submodule_config, NULL); + + if (max_jobs < 0) + max_jobs = parallel_submodules(); + + run_processes_parallel(max_jobs, + update_clone_get_next_task, + update_clone_start_failure, + update_clone_task_finished, + &suc); + + /* + * We saved the output and put it out all at once now. + * That means: + * - the listener does not have to interleave their (checkout) + * work with our fetching. The writes involved in a + * checkout involve more straightforward sequential I/O. + * - the listener can avoid doing any work if fetching failed. + */ + if (suc.quickstop) + return 1; + + for_each_string_list_item(item, &suc.projectlines) + utf8_fprintf(stdout, "%s", item->string); + + return 0; +} + +static int resolve_relative_path(int argc, const char **argv, const char *prefix) +{ + struct strbuf sb = STRBUF_INIT; + if (argc != 3) + die("submodule--helper relative_path takes exactly 2 arguments, got %d", argc); + + printf("%s", relative_path(argv[1], argv[2], &sb)); + strbuf_release(&sb); + return 0; +} + +struct cmd_struct { + const char *cmd; + int (*fn)(int, const char **, const char *); +}; + +static struct cmd_struct commands[] = { + {"list", module_list}, + {"name", module_name}, + {"clone", module_clone}, + {"update-clone", update_clone}, + {"relative-path", resolve_relative_path}, + {"resolve-relative-url", resolve_relative_url}, + {"resolve-relative-url-test", resolve_relative_url_test}, + {"init", module_init} +}; + +int cmd_submodule__helper(int argc, const char **argv, const char *prefix) +{ + int i; + if (argc < 2) + die(_("submodule--helper subcommand must be " + "called with a subcommand")); + + for (i = 0; i < ARRAY_SIZE(commands); i++) + if (!strcmp(argv[1], commands[i].cmd)) + return commands[i].fn(argc - 1, argv + 1, prefix); + + die(_("'%s' is not a valid submodule--helper " + "subcommand"), argv[1]); +} diff --git a/builtin/symbolic-ref.c b/builtin/symbolic-ref.c index 2ef5962386..9c29a64e43 100644 --- a/builtin/symbolic-ref.c +++ b/builtin/symbolic-ref.c @@ -4,55 +4,73 @@ #include "parse-options.h" static const char * const git_symbolic_ref_usage[] = { - "git symbolic-ref [options] name [ref]", + N_("git symbolic-ref [<options>] <name> [<ref>]"), + N_("git symbolic-ref -d [-q] <name>"), NULL }; -static void check_symref(const char *HEAD, int quiet) +static int check_symref(const char *HEAD, int quiet, int shorten, int print) { unsigned char sha1[20]; int flag; - const char *refs_heads_master = resolve_ref_unsafe(HEAD, sha1, 0, &flag); + const char *refname = resolve_ref_unsafe(HEAD, 0, sha1, &flag); - if (!refs_heads_master) + if (!refname) die("No such ref: %s", HEAD); else if (!(flag & REF_ISSYMREF)) { if (!quiet) die("ref %s is not a symbolic ref", HEAD); else - exit(1); + return 1; } - puts(refs_heads_master); + if (print) { + if (shorten) + refname = shorten_unambiguous_ref(refname, 0); + puts(refname); + } + return 0; } int cmd_symbolic_ref(int argc, const char **argv, const char *prefix) { - int quiet = 0; + int quiet = 0, delete = 0, shorten = 0, ret = 0; const char *msg = NULL; struct option options[] = { OPT__QUIET(&quiet, - "suppress error message for non-symbolic (detached) refs"), - OPT_STRING('m', NULL, &msg, "reason", "reason of the update"), + N_("suppress error message for non-symbolic (detached) refs")), + OPT_BOOL('d', "delete", &delete, N_("delete symbolic ref")), + OPT_BOOL(0, "short", &shorten, N_("shorten ref output")), + OPT_STRING('m', NULL, &msg, N_("reason"), N_("reason of the update")), OPT_END(), }; git_config(git_default_config, NULL); argc = parse_options(argc, argv, prefix, options, git_symbolic_ref_usage, 0); - if (msg &&!*msg) + if (msg && !*msg) die("Refusing to perform update with empty message"); + + if (delete) { + if (argc != 1) + usage_with_options(git_symbolic_ref_usage, options); + ret = check_symref(argv[0], 1, 0, 0); + if (ret) + die("Cannot delete %s, not a symbolic ref", argv[0]); + return delete_ref(argv[0], NULL, REF_NODEREF); + } + switch (argc) { case 1: - check_symref(argv[0], quiet); + ret = check_symref(argv[0], quiet, shorten, 1); break; case 2: if (!strcmp(argv[0], "HEAD") && - prefixcmp(argv[1], "refs/")) + !starts_with(argv[1], "refs/")) die("Refusing to point HEAD outside of refs/"); - create_symref(argv[0], argv[1], msg); + ret = !!create_symref(argv[0], argv[1], msg); break; default: usage_with_options(git_symbolic_ref_usage, options); } - return 0; + return ret; } diff --git a/builtin/tag.c b/builtin/tag.c index 31f02e80f6..50e4ae5678 100644 --- a/builtin/tag.c +++ b/builtin/tag.c @@ -15,143 +15,52 @@ #include "diff.h" #include "revision.h" #include "gpg-interface.h" +#include "sha1-array.h" +#include "column.h" +#include "ref-filter.h" static const char * const git_tag_usage[] = { - "git tag [-a|-s|-u <key-id>] [-f] [-m <msg>|-F <file>] <tagname> [<head>]", - "git tag -d <tagname>...", - "git tag -l [-n[<num>]] [<pattern>...]", - "git tag -v <tagname>...", + N_("git tag [-a | -s | -u <key-id>] [-f] [-m <msg> | -F <file>] <tagname> [<head>]"), + N_("git tag -d <tagname>..."), + N_("git tag -l [-n[<num>]] [--contains <commit>] [--points-at <object>]" + "\n\t\t[--format=<format>] [--[no-]merged [<commit>]] [<pattern>...]"), + N_("git tag -v <tagname>..."), NULL }; -struct tag_filter { - const char **patterns; - int lines; - struct commit_list *with_commit; -}; - -static int match_pattern(const char **patterns, const char *ref) -{ - /* no pattern means match everything */ - if (!*patterns) - return 1; - for (; *patterns; patterns++) - if (!fnmatch(*patterns, ref, 0)) - return 1; - return 0; -} - -static int in_commit_list(const struct commit_list *want, struct commit *c) -{ - for (; want; want = want->next) - if (!hashcmp(want->item->object.sha1, c->object.sha1)) - return 1; - return 0; -} - -static int contains_recurse(struct commit *candidate, - const struct commit_list *want) -{ - struct commit_list *p; - - /* was it previously marked as containing a want commit? */ - if (candidate->object.flags & TMP_MARK) - return 1; - /* or marked as not possibly containing a want commit? */ - if (candidate->object.flags & UNINTERESTING) - return 0; - /* or are we it? */ - if (in_commit_list(want, candidate)) - return 1; +static unsigned int colopts; +static int force_sign_annotate; - if (parse_commit(candidate) < 0) - return 0; - - /* Otherwise recurse and mark ourselves for future traversals. */ - for (p = candidate->parents; p; p = p->next) { - if (contains_recurse(p->item, want)) { - candidate->object.flags |= TMP_MARK; - return 1; - } - } - candidate->object.flags |= UNINTERESTING; - return 0; -} - -static int contains(struct commit *candidate, const struct commit_list *want) -{ - return contains_recurse(candidate, want); -} - -static int show_reference(const char *refname, const unsigned char *sha1, - int flag, void *cb_data) +static int list_tags(struct ref_filter *filter, struct ref_sorting *sorting, const char *format) { - struct tag_filter *filter = cb_data; - - if (match_pattern(filter->patterns, refname)) { - int i; - unsigned long size; - enum object_type type; - char *buf, *sp, *eol; - size_t len; - - if (filter->with_commit) { - struct commit *commit; - - commit = lookup_commit_reference_gently(sha1, 1); - if (!commit) - return 0; - if (!contains(commit, filter->with_commit)) - return 0; - } - - if (!filter->lines) { - printf("%s\n", refname); - return 0; - } - printf("%-15s ", refname); - - buf = read_sha1_file(sha1, &type, &size); - if (!buf || !size) - return 0; - - /* skip header */ - sp = strstr(buf, "\n\n"); - if (!sp) { - free(buf); - return 0; - } - /* only take up to "lines" lines, and strip the signature */ - size = parse_signature(buf, size); - for (i = 0, sp += 2; - i < filter->lines && sp < buf + size; - i++) { - if (i) - printf("\n "); - eol = memchr(sp, '\n', size - (sp - buf)); - len = eol ? eol - sp : size - (sp - buf); - fwrite(sp, len, 1, stdout); - if (!eol) - break; - sp = eol + 1; - } - putchar('\n'); - free(buf); + struct ref_array array; + char *to_free = NULL; + int i; + + memset(&array, 0, sizeof(array)); + + if (filter->lines == -1) + filter->lines = 0; + + if (!format) { + if (filter->lines) { + to_free = xstrfmt("%s %%(contents:lines=%d)", + "%(align:15)%(refname:strip=2)%(end)", + filter->lines); + format = to_free; + } else + format = "%(refname:strip=2)"; } - return 0; -} - -static int list_tags(const char **patterns, int lines, - struct commit_list *with_commit) -{ - struct tag_filter filter; - - filter.patterns = patterns; - filter.lines = lines; - filter.with_commit = with_commit; + verify_ref_format(format); + filter->with_commit_tag_algo = 1; + filter_refs(&array, filter, FILTER_REFS_TAGS); + ref_array_sort(sorting, &array); - for_each_tag_ref(show_reference, (void *) &filter); + for (i = 0; i < array.nr; i++) + show_ref_array_item(array.items[i], format, 0); + ref_array_clear(&array); + free(to_free); return 0; } @@ -196,13 +105,7 @@ static int delete_tag(const char *name, const char *ref, static int verify_tag(const char *name, const char *ref, const unsigned char *sha1) { - const char *argv_verify_tag[] = {"verify-tag", - "-v", "SHA1_HEX", NULL}; - argv_verify_tag[2] = sha1_to_hex(sha1); - - if (run_command_v_opt(argv_verify_tag, RUN_GIT_CMD)) - return error(_("could not verify the tag '%s'"), name); - return 0; + return gpg_verify_tag(sha1, name, GPG_VERIFY_VERBOSE); } static int do_sign(struct strbuf *buffer) @@ -211,25 +114,60 @@ static int do_sign(struct strbuf *buffer) } static const char tag_template[] = - N_("\n" - "#\n" - "# Write a tag message\n" - "# Lines starting with '#' will be ignored.\n" - "#\n"); + N_("\nWrite a message for tag:\n %s\n" + "Lines starting with '%c' will be ignored.\n"); static const char tag_template_nocleanup[] = - N_("\n" - "#\n" - "# Write a tag message\n" - "# Lines starting with '#' will be kept; you may remove them" - " yourself if you want to.\n" - "#\n"); + N_("\nWrite a message for tag:\n %s\n" + "Lines starting with '%c' will be kept; you may remove them" + " yourself if you want to.\n"); + +/* Parse arg given and add it the ref_sorting array */ +static int parse_sorting_string(const char *arg, struct ref_sorting **sorting_tail) +{ + struct ref_sorting *s; + int len; + + s = xcalloc(1, sizeof(*s)); + s->next = *sorting_tail; + *sorting_tail = s; + + if (*arg == '-') { + s->reverse = 1; + arg++; + } + if (skip_prefix(arg, "version:", &arg) || + skip_prefix(arg, "v:", &arg)) + s->version = 1; + + len = strlen(arg); + s->atom = parse_ref_filter_atom(arg, arg+len); + + return 0; +} static int git_tag_config(const char *var, const char *value, void *cb) { - int status = git_gpg_config(var, value, cb); + int status; + struct ref_sorting **sorting_tail = (struct ref_sorting **)cb; + + if (!strcmp(var, "tag.sort")) { + if (!value) + return config_error_nonbool(var); + parse_sorting_string(value, sorting_tail); + return 0; + } + + status = git_gpg_config(var, value, cb); if (status) return status; + if (!strcmp(var, "tag.forcesignannotated")) { + force_sign_annotate = git_config_bool(var, value); + return 0; + } + + if (starts_with(var, "column.")) + return git_column_config(var, value, "tag", &colopts); return git_default_config(var, value, cb); } @@ -295,7 +233,7 @@ static void create_tag(const unsigned char *object, const char *tag, sha1_to_hex(object), typename(type), tag, - git_committer_info(IDENT_ERROR_ON_NO_NAME)); + git_committer_info(IDENT_STRICT)); if (header_len > sizeof(header_buf) - 1) die(_("tag header too big.")); @@ -309,14 +247,18 @@ static void create_tag(const unsigned char *object, const char *tag, if (fd < 0) die_errno(_("could not create file '%s'"), path); - if (!is_null_sha1(prev)) + if (!is_null_sha1(prev)) { write_tag_body(fd, prev); - else if (opt->cleanup_mode == CLEANUP_ALL) - write_or_die(fd, _(tag_template), - strlen(_(tag_template))); - else - write_or_die(fd, _(tag_template_nocleanup), - strlen(_(tag_template_nocleanup))); + } else { + struct strbuf buf = STRBUF_INIT; + strbuf_addch(&buf, '\n'); + if (opt->cleanup_mode == CLEANUP_ALL) + strbuf_commented_addf(&buf, _(tag_template), tag, comment_line_char); + else + strbuf_commented_addf(&buf, _(tag_template_nocleanup), tag, comment_line_char); + write_or_die(fd, buf.buf, buf.len); + strbuf_release(&buf); + } close(fd); if (launch_editor(path, buf, NULL)) { @@ -327,7 +269,7 @@ static void create_tag(const unsigned char *object, const char *tag, } if (opt->cleanup_mode != CLEANUP_NONE) - stripspace(buf, opt->cleanup_mode == CLEANUP_ALL); + strbuf_stripspace(buf, opt->cleanup_mode == CLEANUP_ALL); if (!opt->message_given && !buf->len) die(_("no tag message?")); @@ -381,48 +323,61 @@ int cmd_tag(int argc, const char **argv, const char *prefix) struct strbuf ref = STRBUF_INIT; unsigned char object[20], prev[20]; const char *object_ref, *tag; - struct ref_lock *lock; struct create_tag_options opt; char *cleanup_arg = NULL; - int annotate = 0, force = 0, lines = -1, list = 0, - delete = 0, verify = 0; + int create_reflog = 0; + int annotate = 0, force = 0; + int cmdmode = 0, create_tag_object = 0; const char *msgfile = NULL, *keyid = NULL; struct msg_arg msg = { 0, STRBUF_INIT }; - struct commit_list *with_commit = NULL; + struct ref_transaction *transaction; + struct strbuf err = STRBUF_INIT; + struct ref_filter filter; + static struct ref_sorting *sorting = NULL, **sorting_tail = &sorting; + const char *format = NULL; struct option options[] = { - OPT_BOOLEAN('l', "list", &list, "list tag names"), - { OPTION_INTEGER, 'n', NULL, &lines, "n", - "print <n> lines of each tag message", + OPT_CMDMODE('l', "list", &cmdmode, N_("list tag names"), 'l'), + { OPTION_INTEGER, 'n', NULL, &filter.lines, N_("n"), + N_("print <n> lines of each tag message"), PARSE_OPT_OPTARG, NULL, 1 }, - OPT_BOOLEAN('d', "delete", &delete, "delete tags"), - OPT_BOOLEAN('v', "verify", &verify, "verify tags"), - - OPT_GROUP("Tag creation options"), - OPT_BOOLEAN('a', "annotate", &annotate, - "annotated tag, needs a message"), - OPT_CALLBACK('m', "message", &msg, "message", - "tag message", parse_msg_arg), - OPT_FILENAME('F', "file", &msgfile, "read message from file"), - OPT_BOOLEAN('s', "sign", &opt.sign, "annotated and GPG-signed tag"), - OPT_STRING(0, "cleanup", &cleanup_arg, "mode", - "how to strip spaces and #comments from message"), - OPT_STRING('u', "local-user", &keyid, "key-id", - "use another key to sign the tag"), - OPT__FORCE(&force, "replace the tag if exists"), - - OPT_GROUP("Tag listing options"), + OPT_CMDMODE('d', "delete", &cmdmode, N_("delete tags"), 'd'), + OPT_CMDMODE('v', "verify", &cmdmode, N_("verify tags"), 'v'), + + OPT_GROUP(N_("Tag creation options")), + OPT_BOOL('a', "annotate", &annotate, + N_("annotated tag, needs a message")), + OPT_CALLBACK('m', "message", &msg, N_("message"), + N_("tag message"), parse_msg_arg), + OPT_FILENAME('F', "file", &msgfile, N_("read message from file")), + OPT_BOOL('s', "sign", &opt.sign, N_("annotated and GPG-signed tag")), + OPT_STRING(0, "cleanup", &cleanup_arg, N_("mode"), + N_("how to strip spaces and #comments from message")), + OPT_STRING('u', "local-user", &keyid, N_("key-id"), + N_("use another key to sign the tag")), + OPT__FORCE(&force, N_("replace the tag if exists")), + OPT_BOOL(0, "create-reflog", &create_reflog, N_("create a reflog")), + + OPT_GROUP(N_("Tag listing options")), + OPT_COLUMN(0, "column", &colopts, N_("show tag list in columns")), + OPT_CONTAINS(&filter.with_commit, N_("print only tags that contain the commit")), + OPT_WITH(&filter.with_commit, N_("print only tags that contain the commit")), + OPT_MERGED(&filter, N_("print only tags that are merged")), + OPT_NO_MERGED(&filter, N_("print only tags that are not merged")), + OPT_CALLBACK(0 , "sort", sorting_tail, N_("key"), + N_("field name to sort on"), &parse_opt_ref_sorting), { - OPTION_CALLBACK, 0, "contains", &with_commit, "commit", - "print only tags that contain the commit", - PARSE_OPT_LASTARG_DEFAULT, - parse_opt_with_commit, (intptr_t)"HEAD", + OPTION_CALLBACK, 0, "points-at", &filter.points_at, N_("object"), + N_("print only tags of the object"), 0, parse_opt_object_name }, + OPT_STRING( 0 , "format", &format, N_("format"), N_("format to use for the output")), OPT_END() }; - git_config(git_tag_config, NULL); + git_config(git_tag_config, sorting_tail); memset(&opt, 0, sizeof(opt)); + memset(&filter, 0, sizeof(filter)); + filter.lines = -1; argc = parse_options(argc, argv, prefix, options, git_tag_usage, 0); @@ -430,33 +385,52 @@ int cmd_tag(int argc, const char **argv, const char *prefix) opt.sign = 1; set_signing_key(keyid); } - if (opt.sign) - annotate = 1; - if (argc == 0 && !(delete || verify)) - list = 1; + create_tag_object = (opt.sign || annotate || msg.given || msgfile); - if ((annotate || msg.given || msgfile || force) && - (list || delete || verify)) - usage_with_options(git_tag_usage, options); + if (argc == 0 && !cmdmode) + cmdmode = 'l'; - if (list + delete + verify > 1) + if ((create_tag_object || force) && (cmdmode != 0)) usage_with_options(git_tag_usage, options); - if (list) - return list_tags(argv, lines == -1 ? 0 : lines, - with_commit); - if (lines != -1) + + finalize_colopts(&colopts, -1); + if (cmdmode == 'l' && filter.lines != -1) { + if (explicitly_enable_column(colopts)) + die(_("--column and -n are incompatible")); + colopts = 0; + } + if (!sorting) + sorting = ref_default_sorting(); + if (cmdmode == 'l') { + int ret; + if (column_active(colopts)) { + struct column_options copts; + memset(&copts, 0, sizeof(copts)); + copts.padding = 2; + run_column_filter(colopts, &copts); + } + filter.name_patterns = argv; + ret = list_tags(&filter, sorting, format); + if (column_active(colopts)) + stop_column_filter(); + return ret; + } + if (filter.lines != -1) die(_("-n option is only allowed with -l.")); - if (with_commit) + if (filter.with_commit) die(_("--contains option is only allowed with -l.")); - if (delete) + if (filter.points_at.nr) + die(_("--points-at option is only allowed with -l.")); + if (filter.merge_commit) + die(_("--merged and --no-merged option are only allowed with -l")); + if (cmdmode == 'd') return for_each_tag_name(argv, delete_tag); - if (verify) + if (cmdmode == 'v') return for_each_tag_name(argv, verify_tag); if (msg.given || msgfile) { if (msg.given && msgfile) die(_("only one -F or -m option is allowed.")); - annotate = 1; if (msg.given) strbuf_addbuf(&buf, &(msg.buf)); else { @@ -499,17 +473,24 @@ int cmd_tag(int argc, const char **argv, const char *prefix) else die(_("Invalid cleanup mode %s"), cleanup_arg); - if (annotate) + if (create_tag_object) { + if (force_sign_annotate && !annotate) + opt.sign = 1; create_tag(object, tag, &buf, &opt, prev, object); + } - lock = lock_any_ref_for_update(ref.buf, prev, 0); - if (!lock) - die(_("%s: cannot lock the ref"), ref.buf); - if (write_ref_sha1(lock, object, NULL) < 0) - die(_("%s: cannot update the ref"), ref.buf); - if (force && hashcmp(prev, object)) + transaction = ref_transaction_begin(&err); + if (!transaction || + ref_transaction_update(transaction, ref.buf, object, prev, + create_reflog ? REF_FORCE_CREATE_REFLOG : 0, + NULL, &err) || + ref_transaction_commit(transaction, &err)) + die("%s", err.buf); + ref_transaction_free(transaction); + if (force && !is_null_sha1(prev) && hashcmp(prev, object)) printf(_("Updated tag '%s' (was %s)\n"), tag, find_unique_abbrev(prev, DEFAULT_ABBREV)); + strbuf_release(&err); strbuf_release(&buf); strbuf_release(&ref); return 0; diff --git a/builtin/tar-tree.c b/builtin/tar-tree.c deleted file mode 100644 index 3f1e7012db..0000000000 --- a/builtin/tar-tree.c +++ /dev/null @@ -1,103 +0,0 @@ -/* - * Copyright (c) 2005, 2006 Rene Scharfe - */ -#include "cache.h" -#include "commit.h" -#include "tar.h" -#include "builtin.h" -#include "quote.h" - -static const char tar_tree_usage[] = -"git tar-tree [--remote=<repo>] <tree-ish> [basedir]\n" -"*** Note that this command is now deprecated; use \"git archive\" instead."; - -static const char builtin_get_tar_commit_id_usage[] = -"git get-tar-commit-id < <tarfile>"; - -int cmd_tar_tree(int argc, const char **argv, const char *prefix) -{ - /* - * "git tar-tree" is now a wrapper around "git archive --format=tar" - * - * $0 --remote=<repo> arg... ==> - * git archive --format=tar --remote=<repo> arg... - * $0 tree-ish ==> - * git archive --format=tar tree-ish - * $0 tree-ish basedir ==> - * git archive --format-tar --prefix=basedir tree-ish - */ - int i; - const char **nargv = xcalloc(sizeof(*nargv), argc + 3); - char *basedir_arg; - int nargc = 0; - - nargv[nargc++] = "archive"; - nargv[nargc++] = "--format=tar"; - - if (2 <= argc && !prefixcmp(argv[1], "--remote=")) { - nargv[nargc++] = argv[1]; - argv++; - argc--; - } - - /* - * Because it's just a compatibility wrapper, tar-tree supports only - * the old behaviour of reading attributes from the work tree. - */ - nargv[nargc++] = "--worktree-attributes"; - - switch (argc) { - default: - usage(tar_tree_usage); - break; - case 3: - /* base-path */ - basedir_arg = xmalloc(strlen(argv[2]) + 11); - sprintf(basedir_arg, "--prefix=%s/", argv[2]); - nargv[nargc++] = basedir_arg; - /* fallthru */ - case 2: - /* tree-ish */ - nargv[nargc++] = argv[1]; - } - nargv[nargc] = NULL; - - fprintf(stderr, - "*** \"git tar-tree\" is now deprecated.\n" - "*** Running \"git archive\" instead.\n***"); - for (i = 0; i < nargc; i++) { - fputc(' ', stderr); - sq_quote_print(stderr, nargv[i]); - } - fputc('\n', stderr); - return cmd_archive(nargc, nargv, prefix); -} - -/* ustar header + extended global header content */ -#define RECORDSIZE (512) -#define HEADERSIZE (2 * RECORDSIZE) - -int cmd_get_tar_commit_id(int argc, const char **argv, const char *prefix) -{ - char buffer[HEADERSIZE]; - struct ustar_header *header = (struct ustar_header *)buffer; - char *content = buffer + RECORDSIZE; - ssize_t n; - - if (argc != 1) - usage(builtin_get_tar_commit_id_usage); - - n = read_in_full(0, buffer, HEADERSIZE); - if (n < HEADERSIZE) - die("git get-tar-commit-id: read error"); - if (header->typeflag[0] != 'g') - return 1; - if (memcmp(content, "52 comment=", 11)) - return 1; - - n = write_in_full(1, content + 11, 41); - if (n < 41) - die_errno("git get-tar-commit-id: write error"); - - return 0; -} diff --git a/builtin/unpack-file.c b/builtin/unpack-file.c index 19200291a2..6fc6bcdf7f 100644 --- a/builtin/unpack-file.c +++ b/builtin/unpack-file.c @@ -12,7 +12,7 @@ static char *create_temp_file(unsigned char *sha1) if (!buf || type != OBJ_BLOB) die("unable to read blob object %s", sha1_to_hex(sha1)); - strcpy(path, ".merge_file_XXXXXX"); + xsnprintf(path, sizeof(path), ".merge_file_XXXXXX"); fd = xmkstemp(path); if (write_in_full(fd, buf, size) != size) die_errno("unable to write temp-file"); diff --git a/builtin/unpack-objects.c b/builtin/unpack-objects.c index 14e04e6795..875e7ed998 100644 --- a/builtin/unpack-objects.c +++ b/builtin/unpack-objects.c @@ -13,13 +13,14 @@ #include "fsck.h" static int dry_run, quiet, recover, has_errors, strict; -static const char unpack_usage[] = "git unpack-objects [-n] [-q] [-r] [--strict] < pack-file"; +static const char unpack_usage[] = "git unpack-objects [-n] [-q] [-r] [--strict]"; /* We always read in 4kB chunks. */ static unsigned char buffer[4096]; static unsigned int offset, len; static off_t consumed_bytes; static git_SHA_CTX ctx; +static struct fsck_options fsck_options = FSCK_OPTIONS_STRICT; /* * When running under --strict mode, objects whose reachability are @@ -45,7 +46,7 @@ static void add_object_buffer(struct object *object, char *buffer, unsigned long obj->buffer = buffer; obj->size = size; if (add_decoration(&obj_decorate, object, obj)) - die("object %s tried to add buffer twice!", sha1_to_hex(object->sha1)); + die("object %s tried to add buffer twice!", oid_to_hex(&object->oid)); } /* @@ -91,7 +92,7 @@ static void use(int bytes) static void *get_data(unsigned long size) { git_zstream stream; - void *buf = xmalloc(size); + void *buf = xmallocz(size); memset(&stream, 0, sizeof(stream)); @@ -107,7 +108,7 @@ static void *get_data(unsigned long size) if (stream.total_out == size && ret == Z_STREAM_END) break; if (ret != Z_OK) { - error("inflate returned %d\n", ret); + error("inflate returned %d", ret); free(buf); buf = NULL; if (!recover) @@ -164,12 +165,12 @@ static unsigned nr_objects; * Called only from check_object() after it verified this object * is Ok. */ -static void write_cached_object(struct object *obj) +static void write_cached_object(struct object *obj, struct obj_buffer *obj_buf) { unsigned char sha1[20]; - struct obj_buffer *obj_buf = lookup_object_buffer(obj); + if (write_sha1_file(obj_buf->buffer, obj_buf->size, typename(obj->type), sha1) < 0) - die("failed to write object %s", sha1_to_hex(obj->sha1)); + die("failed to write object %s", oid_to_hex(&obj->oid)); obj->flags |= FLAG_WRITTEN; } @@ -178,8 +179,10 @@ static void write_cached_object(struct object *obj) * that have reachability requirements and calls this function. * Verify its reachability and validity recursively and write it out. */ -static int check_object(struct object *obj, int type, void *data) +static int check_object(struct object *obj, int type, void *data, struct fsck_options *options) { + struct obj_buffer *obj_buf; + if (!obj) return 1; @@ -191,18 +194,22 @@ static int check_object(struct object *obj, int type, void *data) if (!(obj->flags & FLAG_OPEN)) { unsigned long size; - int type = sha1_object_info(obj->sha1, &size); + int type = sha1_object_info(obj->oid.hash, &size); if (type != obj->type || type <= 0) die("object of unexpected type"); obj->flags |= FLAG_WRITTEN; return 0; } - if (fsck_object(obj, 1, fsck_error_function)) + obj_buf = lookup_object_buffer(obj); + if (!obj_buf) + die("Whoops! Cannot find object '%s'", oid_to_hex(&obj->oid)); + if (fsck_object(obj, obj_buf->buffer, obj_buf->size, &fsck_options)) die("Error in object"); - if (fsck_walk(obj, check_object, NULL)) - die("Error on reachable objects of %s", sha1_to_hex(obj->sha1)); - write_cached_object(obj); + fsck_options.walk = check_object; + if (fsck_walk(obj, NULL, &fsck_options)) + die("Error on reachable objects of %s", oid_to_hex(&obj->oid)); + write_cached_object(obj, obj_buf); return 0; } @@ -211,7 +218,7 @@ static void write_rest(void) unsigned i; for (i = 0; i < nr_objects; i++) { if (obj_list[i].obj) - check_object(obj_list[i].obj, OBJ_ANY, NULL); + check_object(obj_list[i].obj, OBJ_ANY, NULL, NULL); } } @@ -480,7 +487,7 @@ static void unpack_all(void) use(sizeof(struct pack_header)); if (!quiet) - progress = start_progress("Unpacking objects", nr_objects); + progress = start_progress(_("Unpacking objects"), nr_objects); obj_list = xcalloc(nr_objects, sizeof(*obj_list)); for (i = 0; i < nr_objects; i++) { unpack_one(i); @@ -497,7 +504,7 @@ int cmd_unpack_objects(int argc, const char **argv, const char *prefix) int i; unsigned char sha1[20]; - read_replace_refs = 0; + check_replace_refs = 0; git_config(git_default_config, NULL); @@ -523,7 +530,12 @@ int cmd_unpack_objects(int argc, const char **argv, const char *prefix) strict = 1; continue; } - if (!prefixcmp(arg, "--pack_header=")) { + if (skip_prefix(arg, "--strict=", &arg)) { + strict = 1; + fsck_set_msg_types(&fsck_options, arg); + continue; + } + if (starts_with(arg, "--pack_header=")) { struct pack_header *hdr; char *c; diff --git a/builtin/update-index.c b/builtin/update-index.c index a6a23fa1f3..b8b8522249 100644 --- a/builtin/update-index.c +++ b/builtin/update-index.c @@ -4,6 +4,7 @@ * Copyright (C) Linus Torvalds, 2005 */ #include "cache.h" +#include "lockfile.h" #include "quote.h" #include "cache-tree.h" #include "tree-walk.h" @@ -11,6 +12,9 @@ #include "refs.h" #include "resolve-undo.h" #include "parse-options.h" +#include "pathspec.h" +#include "dir.h" +#include "split-index.h" /* * Default to not allowing changes to the list of files. The @@ -29,6 +33,16 @@ static int mark_valid_only; static int mark_skip_worktree_only; #define MARK_FLAG 1 #define UNMARK_FLAG 2 +static struct strbuf mtime_dir = STRBUF_INIT; + +/* Untracked cache mode */ +enum uc_mode { + UC_UNSPECIFIED = -1, + UC_DISABLE = 0, + UC_ENABLE, + UC_TEST, + UC_FORCE +}; __attribute__((format (printf, 1, 2))) static void report(const char *fmt, ...) @@ -44,6 +58,166 @@ static void report(const char *fmt, ...) va_end(vp); } +static void remove_test_directory(void) +{ + if (mtime_dir.len) + remove_dir_recursively(&mtime_dir, 0); +} + +static const char *get_mtime_path(const char *path) +{ + static struct strbuf sb = STRBUF_INIT; + strbuf_reset(&sb); + strbuf_addf(&sb, "%s/%s", mtime_dir.buf, path); + return sb.buf; +} + +static void xmkdir(const char *path) +{ + path = get_mtime_path(path); + if (mkdir(path, 0700)) + die_errno(_("failed to create directory %s"), path); +} + +static int xstat_mtime_dir(struct stat *st) +{ + if (stat(mtime_dir.buf, st)) + die_errno(_("failed to stat %s"), mtime_dir.buf); + return 0; +} + +static int create_file(const char *path) +{ + int fd; + path = get_mtime_path(path); + fd = open(path, O_CREAT | O_RDWR, 0644); + if (fd < 0) + die_errno(_("failed to create file %s"), path); + return fd; +} + +static void xunlink(const char *path) +{ + path = get_mtime_path(path); + if (unlink(path)) + die_errno(_("failed to delete file %s"), path); +} + +static void xrmdir(const char *path) +{ + path = get_mtime_path(path); + if (rmdir(path)) + die_errno(_("failed to delete directory %s"), path); +} + +static void avoid_racy(void) +{ + /* + * not use if we could usleep(10) if USE_NSEC is defined. The + * field nsec could be there, but the OS could choose to + * ignore it? + */ + sleep(1); +} + +static int test_if_untracked_cache_is_supported(void) +{ + struct stat st; + struct stat_data base; + int fd, ret = 0; + + strbuf_addstr(&mtime_dir, "mtime-test-XXXXXX"); + if (!mkdtemp(mtime_dir.buf)) + die_errno("Could not make temporary directory"); + + fprintf(stderr, _("Testing mtime in '%s' "), xgetcwd()); + atexit(remove_test_directory); + xstat_mtime_dir(&st); + fill_stat_data(&base, &st); + fputc('.', stderr); + + avoid_racy(); + fd = create_file("newfile"); + xstat_mtime_dir(&st); + if (!match_stat_data(&base, &st)) { + close(fd); + fputc('\n', stderr); + fprintf_ln(stderr,_("directory stat info does not " + "change after adding a new file")); + goto done; + } + fill_stat_data(&base, &st); + fputc('.', stderr); + + avoid_racy(); + xmkdir("new-dir"); + xstat_mtime_dir(&st); + if (!match_stat_data(&base, &st)) { + close(fd); + fputc('\n', stderr); + fprintf_ln(stderr, _("directory stat info does not change " + "after adding a new directory")); + goto done; + } + fill_stat_data(&base, &st); + fputc('.', stderr); + + avoid_racy(); + write_or_die(fd, "data", 4); + close(fd); + xstat_mtime_dir(&st); + if (match_stat_data(&base, &st)) { + fputc('\n', stderr); + fprintf_ln(stderr, _("directory stat info changes " + "after updating a file")); + goto done; + } + fputc('.', stderr); + + avoid_racy(); + close(create_file("new-dir/new")); + xstat_mtime_dir(&st); + if (match_stat_data(&base, &st)) { + fputc('\n', stderr); + fprintf_ln(stderr, _("directory stat info changes after " + "adding a file inside subdirectory")); + goto done; + } + fputc('.', stderr); + + avoid_racy(); + xunlink("newfile"); + xstat_mtime_dir(&st); + if (!match_stat_data(&base, &st)) { + fputc('\n', stderr); + fprintf_ln(stderr, _("directory stat info does not " + "change after deleting a file")); + goto done; + } + fill_stat_data(&base, &st); + fputc('.', stderr); + + avoid_racy(); + xunlink("new-dir/new"); + xrmdir("new-dir"); + xstat_mtime_dir(&st); + if (!match_stat_data(&base, &st)) { + fputc('\n', stderr); + fprintf_ln(stderr, _("directory stat info does not " + "change after deleting a directory")); + goto done; + } + + if (rmdir(mtime_dir.buf)) + die_errno(_("failed to delete directory %s"), mtime_dir.buf); + fprintf_ln(stderr, _(" OK")); + ret = 1; + +done: + strbuf_release(&mtime_dir); + return ret; +} + static int mark_ce_flags(const char *path, int flag, int mark) { int namelen = strlen(path); @@ -53,8 +227,9 @@ static int mark_ce_flags(const char *path, int flag, int mark) active_cache[pos]->ce_flags |= flag; else active_cache[pos]->ce_flags &= ~flag; - cache_tree_invalidate_path(active_cache_tree, path); - active_cache_changed = 1; + active_cache[pos]->ce_flags |= CE_UPDATE_IN_BASE; + cache_tree_invalidate_path(&the_index, path); + active_cache_changed |= CE_ENTRY_CHANGED; return 0; } return -1; @@ -80,10 +255,10 @@ static int process_lstat_error(const char *path, int err) { if (err == ENOENT || err == ENOTDIR) return remove_one_path(path); - return error("lstat(\"%s\"): %s", path, strerror(errno)); + return error("lstat(\"%s\"): %s", path, strerror(err)); } -static int add_one_path(struct cache_entry *old, const char *path, int len, struct stat *st) +static int add_one_path(const struct cache_entry *old, const char *path, int len, struct stat *st) { int option, size; struct cache_entry *ce; @@ -95,7 +270,8 @@ static int add_one_path(struct cache_entry *old, const char *path, int len, stru size = cache_entry_size(len); ce = xcalloc(1, size); memcpy(ce->name, path, len); - ce->ce_flags = len; + ce->ce_flags = create_ce_flags(0); + ce->ce_namelen = len; fill_stat_cache_info(ce, st); ce->ce_mode = ce_mode_from_stat(old, st->st_mode); @@ -141,7 +317,7 @@ static int process_directory(const char *path, int len, struct stat *st) /* Exact match: file or existing gitlink */ if (pos >= 0) { - struct cache_entry *ce = active_cache[pos]; + const struct cache_entry *ce = active_cache[pos]; if (S_ISGITLINK(ce->ce_mode)) { /* Do nothing to the index if there is no HEAD! */ @@ -157,7 +333,7 @@ static int process_directory(const char *path, int len, struct stat *st) /* Inexact match: is there perhaps a subdirectory match? */ pos = -pos-1; while (pos < active_nr) { - struct cache_entry *ce = active_cache[pos++]; + const struct cache_entry *ce = active_cache[pos++]; if (strncmp(ce->name, path, len)) break; @@ -182,7 +358,7 @@ static int process_path(const char *path) { int pos, len; struct stat st; - struct cache_entry *ce; + const struct cache_entry *ce; len = strlen(path); if (has_symlink_leading_path(path, len)) @@ -211,12 +387,6 @@ static int process_path(const char *path) if (S_ISDIR(st.st_mode)) return process_directory(path, len, &st); - /* - * Process a regular file - */ - if (ce && S_ISGITLINK(ce->ce_mode)) - return error("%s is already a gitlink, not replacing", path); - return add_one_path(ce, path, len, &st); } @@ -235,7 +405,8 @@ static int add_cacheinfo(unsigned int mode, const unsigned char *sha1, hashcpy(ce->sha1, sha1); memcpy(ce->name, path, len); - ce->ce_flags = create_ce_flags(len, stage); + ce->ce_flags = create_ce_flags(stage); + ce->ce_namelen = len; ce->ce_mode = create_ce_mode(mode); if (assume_unchanged) ce->ce_flags |= CE_VALID; @@ -269,52 +440,51 @@ static void chmod_path(int flip, const char *path) default: goto fail; } - cache_tree_invalidate_path(active_cache_tree, path); - active_cache_changed = 1; + cache_tree_invalidate_path(&the_index, path); + ce->ce_flags |= CE_UPDATE_IN_BASE; + active_cache_changed |= CE_ENTRY_CHANGED; report("chmod %cx '%s'", flip, path); return; fail: die("git update-index: cannot chmod %cx '%s'", flip, path); } -static void update_one(const char *path, const char *prefix, int prefix_length) +static void update_one(const char *path) { - const char *p = prefix_path(prefix, prefix_length, path); - if (!verify_path(p)) { + if (!verify_path(path)) { fprintf(stderr, "Ignoring path %s\n", path); - goto free_return; + return; } if (mark_valid_only) { - if (mark_ce_flags(p, CE_VALID, mark_valid_only == MARK_FLAG)) + if (mark_ce_flags(path, CE_VALID, mark_valid_only == MARK_FLAG)) die("Unable to mark file %s", path); - goto free_return; + return; } if (mark_skip_worktree_only) { - if (mark_ce_flags(p, CE_SKIP_WORKTREE, mark_skip_worktree_only == MARK_FLAG)) + if (mark_ce_flags(path, CE_SKIP_WORKTREE, mark_skip_worktree_only == MARK_FLAG)) die("Unable to mark file %s", path); - goto free_return; + return; } if (force_remove) { - if (remove_file_from_cache(p)) + if (remove_file_from_cache(path)) die("git update-index: unable to remove %s", path); report("remove '%s'", path); - goto free_return; + return; } - if (process_path(p)) + if (process_path(path)) die("Unable to process path %s", path); report("add '%s'", path); - free_return: - if (p < path || p > path + strlen(path)) - free((char *)p); } -static void read_index_info(int line_termination) +static void read_index_info(int nul_term_line) { struct strbuf buf = STRBUF_INIT; struct strbuf uq = STRBUF_INIT; + strbuf_getline_fn getline_fn; - while (strbuf_getline(&buf, stdin, line_termination) != EOF) { + getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf; + while (getline_fn(&buf, stdin) != EOF) { char *ptr, *tab; char *path_name; unsigned char sha1[20]; @@ -363,7 +533,7 @@ static void read_index_info(int line_termination) goto bad_line; path_name = ptr; - if (line_termination && path_name[0] == '"') { + if (!nul_term_line && path_name[0] == '"') { strbuf_reset(&uq); if (unquote_c_style(&uq, path_name, NULL)) { die("git update-index: bad quoting of path name"); @@ -402,7 +572,7 @@ static void read_index_info(int line_termination) } static const char * const update_index_usage[] = { - "git update-index [options] [--] [<file>...]", + N_("git update-index [<options>] [--] [<file>...]"), NULL }; @@ -433,7 +603,8 @@ static struct cache_entry *read_one_ent(const char *which, hashcpy(ce->sha1, sha1); memcpy(ce->name, path, namelen); - ce->ce_flags = create_ce_flags(namelen, stage); + ce->ce_flags = create_ce_flags(stage); + ce->ce_namelen = namelen; ce->ce_mode = create_ce_mode(mode); return ce; } @@ -451,7 +622,7 @@ static int unresolve_one(const char *path) /* already merged */ pos = unmerge_cache_entry_at(pos); if (pos < active_nr) { - struct cache_entry *ce = active_cache[pos]; + const struct cache_entry *ce = active_cache[pos]; if (ce_stage(ce) && ce_namelen(ce) == namelen && !memcmp(ce->name, path, namelen)) @@ -465,7 +636,7 @@ static int unresolve_one(const char *path) */ pos = -pos-1; if (pos < active_nr) { - struct cache_entry *ce = active_cache[pos]; + const struct cache_entry *ce = active_cache[pos]; if (ce_namelen(ce) == namelen && !memcmp(ce->name, path, namelen)) { fprintf(stderr, @@ -533,10 +704,9 @@ static int do_unresolve(int ac, const char **av, for (i = 1; i < ac; i++) { const char *arg = av[i]; - const char *p = prefix_path(prefix, prefix_length, arg); + char *p = prefix_path(prefix, prefix_length, arg); err |= unresolve_one(p); - if (p < arg || p > arg + strlen(arg)) - free((char *)p); + free(p); } return err; } @@ -549,10 +719,11 @@ static int do_reupdate(int ac, const char **av, */ int pos; int has_head = 1; - const char **paths = get_pathspec(prefix, av + 1); struct pathspec pathspec; - init_pathspec(&pathspec, paths); + parse_pathspec(&pathspec, 0, + PATHSPEC_PREFER_CWD, + prefix, av + 1); if (read_ref("HEAD", head_sha1)) /* If there is no HEAD, that means it is an initial @@ -561,11 +732,12 @@ static int do_reupdate(int ac, const char **av, has_head = 0; redo: for (pos = 0; pos < active_nr; pos++) { - struct cache_entry *ce = active_cache[pos]; + const struct cache_entry *ce = active_cache[pos]; struct cache_entry *old = NULL; int save_nr; + char *path; - if (ce_stage(ce) || !ce_path_match(ce, &pathspec)) + if (ce_stage(ce) || !ce_path_match(ce, &pathspec, NULL)) continue; if (has_head) old = read_one_ent(NULL, head_sha1, @@ -580,7 +752,10 @@ static int do_reupdate(int ac, const char **av, * or worse yet 'allow_replace', active_nr may decrease. */ save_nr = active_nr; - update_one(ce->name + prefix_length, prefix, prefix_length); + path = xstrdup(ce->name); + update_one(path); + free(path); + free(old); if (save_nr != active_nr) goto redo; } @@ -596,6 +771,7 @@ struct refresh_params { static int refresh(struct refresh_params *o, unsigned int flag) { setup_work_tree(); + read_cache_preload(NULL); *o->has_errors |= refresh_cache(o->flags | flag); return 0; } @@ -629,14 +805,45 @@ static int resolve_undo_clear_callback(const struct option *opt, return 0; } +static int parse_new_style_cacheinfo(const char *arg, + unsigned int *mode, + unsigned char sha1[], + const char **path) +{ + unsigned long ul; + char *endp; + + if (!arg) + return -1; + + errno = 0; + ul = strtoul(arg, &endp, 8); + if (errno || endp == arg || *endp != ',' || (unsigned int) ul != ul) + return -1; /* not a new-style cacheinfo */ + *mode = ul; + endp++; + if (get_sha1_hex(endp, sha1) || endp[40] != ',') + return -1; + *path = endp + 41; + return 0; +} + static int cacheinfo_callback(struct parse_opt_ctx_t *ctx, const struct option *opt, int unset) { unsigned char sha1[20]; unsigned int mode; + const char *path; + if (!parse_new_style_cacheinfo(ctx->argv[1], &mode, sha1, &path)) { + if (add_cacheinfo(mode, sha1, path, 0)) + die("git update-index: --cacheinfo cannot add %s", path); + ctx->argv++; + ctx->argc--; + return 0; + } if (ctx->argc <= 3) - return error("option 'cacheinfo' expects three arguments"); + return error("option 'cacheinfo' expects <mode>,<sha1>,<path>"); if (strtoul_ui(*++ctx->argv, 8, &mode) || get_sha1_hex(*++ctx->argv, sha1) || add_cacheinfo(mode, sha1, *++ctx->argv, 0)) @@ -648,12 +855,12 @@ static int cacheinfo_callback(struct parse_opt_ctx_t *ctx, static int stdin_cacheinfo_callback(struct parse_opt_ctx_t *ctx, const struct option *opt, int unset) { - int *line_termination = opt->value; + int *nul_term_line = opt->value; if (ctx->argc != 1) return error("option '%s' must be the last argument", opt->long_name); allow_add = allow_replace = allow_remove = 1; - read_index_info(*line_termination); + read_index_info(*nul_term_line); return 0; } @@ -705,97 +912,111 @@ static int reupdate_callback(struct parse_opt_ctx_t *ctx, int cmd_update_index(int argc, const char **argv, const char *prefix) { - int newfd, entries, has_errors = 0, line_termination = '\n'; + int newfd, entries, has_errors = 0, nul_term_line = 0; + enum uc_mode untracked_cache = UC_UNSPECIFIED; int read_from_stdin = 0; int prefix_length = prefix ? strlen(prefix) : 0; + int preferred_index_format = 0; char set_executable_bit = 0; struct refresh_params refresh_args = {0, &has_errors}; int lock_error = 0; + int split_index = -1; struct lock_file *lock_file; struct parse_opt_ctx_t ctx; + strbuf_getline_fn getline_fn; int parseopt_state = PARSE_OPT_UNKNOWN; struct option options[] = { OPT_BIT('q', NULL, &refresh_args.flags, - "continue refresh even when index needs update", + N_("continue refresh even when index needs update"), REFRESH_QUIET), OPT_BIT(0, "ignore-submodules", &refresh_args.flags, - "refresh: ignore submodules", + N_("refresh: ignore submodules"), REFRESH_IGNORE_SUBMODULES), OPT_SET_INT(0, "add", &allow_add, - "do not ignore new files", 1), + N_("do not ignore new files"), 1), OPT_SET_INT(0, "replace", &allow_replace, - "let files replace directories and vice-versa", 1), + N_("let files replace directories and vice-versa"), 1), OPT_SET_INT(0, "remove", &allow_remove, - "notice files missing from worktree", 1), + N_("notice files missing from worktree"), 1), OPT_BIT(0, "unmerged", &refresh_args.flags, - "refresh even if index contains unmerged entries", + N_("refresh even if index contains unmerged entries"), REFRESH_UNMERGED), {OPTION_CALLBACK, 0, "refresh", &refresh_args, NULL, - "refresh stat information", + N_("refresh stat information"), PARSE_OPT_NOARG | PARSE_OPT_NONEG, refresh_callback}, {OPTION_CALLBACK, 0, "really-refresh", &refresh_args, NULL, - "like --refresh, but ignore assume-unchanged setting", + N_("like --refresh, but ignore assume-unchanged setting"), PARSE_OPT_NOARG | PARSE_OPT_NONEG, really_refresh_callback}, {OPTION_LOWLEVEL_CALLBACK, 0, "cacheinfo", NULL, - "<mode> <object> <path>", - "add the specified entry to the index", - PARSE_OPT_NOARG | /* disallow --cacheinfo=<mode> form */ + N_("<mode>,<object>,<path>"), + N_("add the specified entry to the index"), + PARSE_OPT_NOARG | /* disallow --cacheinfo=<mode> form */ PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP, (parse_opt_cb *) cacheinfo_callback}, - {OPTION_CALLBACK, 0, "chmod", &set_executable_bit, "(+/-)x", - "override the executable bit of the listed files", + {OPTION_CALLBACK, 0, "chmod", &set_executable_bit, N_("(+/-)x"), + N_("override the executable bit of the listed files"), PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP, chmod_callback}, {OPTION_SET_INT, 0, "assume-unchanged", &mark_valid_only, NULL, - "mark files as \"not changing\"", + N_("mark files as \"not changing\""), PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG}, {OPTION_SET_INT, 0, "no-assume-unchanged", &mark_valid_only, NULL, - "clear assumed-unchanged bit", + N_("clear assumed-unchanged bit"), PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG}, {OPTION_SET_INT, 0, "skip-worktree", &mark_skip_worktree_only, NULL, - "mark files as \"index-only\"", + N_("mark files as \"index-only\""), PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG}, {OPTION_SET_INT, 0, "no-skip-worktree", &mark_skip_worktree_only, NULL, - "clear skip-worktree bit", + N_("clear skip-worktree bit"), PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG}, OPT_SET_INT(0, "info-only", &info_only, - "add to index only; do not add content to object database", 1), + N_("add to index only; do not add content to object database"), 1), OPT_SET_INT(0, "force-remove", &force_remove, - "remove named paths even if present in worktree", 1), - OPT_SET_INT('z', NULL, &line_termination, - "with --stdin: input lines are terminated by null bytes", '\0'), + N_("remove named paths even if present in worktree"), 1), + OPT_BOOL('z', NULL, &nul_term_line, + N_("with --stdin: input lines are terminated by null bytes")), {OPTION_LOWLEVEL_CALLBACK, 0, "stdin", &read_from_stdin, NULL, - "read list of paths to be updated from standard input", + N_("read list of paths to be updated from standard input"), PARSE_OPT_NONEG | PARSE_OPT_NOARG, (parse_opt_cb *) stdin_callback}, - {OPTION_LOWLEVEL_CALLBACK, 0, "index-info", &line_termination, NULL, - "add entries from standard input to the index", + {OPTION_LOWLEVEL_CALLBACK, 0, "index-info", &nul_term_line, NULL, + N_("add entries from standard input to the index"), PARSE_OPT_NONEG | PARSE_OPT_NOARG, (parse_opt_cb *) stdin_cacheinfo_callback}, {OPTION_LOWLEVEL_CALLBACK, 0, "unresolve", &has_errors, NULL, - "repopulate stages #2 and #3 for the listed paths", + N_("repopulate stages #2 and #3 for the listed paths"), PARSE_OPT_NONEG | PARSE_OPT_NOARG, (parse_opt_cb *) unresolve_callback}, {OPTION_LOWLEVEL_CALLBACK, 'g', "again", &has_errors, NULL, - "only update entries that differ from HEAD", + N_("only update entries that differ from HEAD"), PARSE_OPT_NONEG | PARSE_OPT_NOARG, (parse_opt_cb *) reupdate_callback}, OPT_BIT(0, "ignore-missing", &refresh_args.flags, - "ignore files missing from worktree", + N_("ignore files missing from worktree"), REFRESH_IGNORE_MISSING), OPT_SET_INT(0, "verbose", &verbose, - "report actions to standard output", 1), + N_("report actions to standard output"), 1), {OPTION_CALLBACK, 0, "clear-resolve-undo", NULL, NULL, - "(for porcelains) forget saved unresolved conflicts", + N_("(for porcelains) forget saved unresolved conflicts"), PARSE_OPT_NOARG | PARSE_OPT_NONEG, resolve_undo_clear_callback}, + OPT_INTEGER(0, "index-version", &preferred_index_format, + N_("write index in this format")), + OPT_BOOL(0, "split-index", &split_index, + N_("enable or disable split index")), + OPT_BOOL(0, "untracked-cache", &untracked_cache, + N_("enable/disable untracked cache")), + OPT_SET_INT(0, "test-untracked-cache", &untracked_cache, + N_("test if the filesystem supports untracked cache"), UC_TEST), + OPT_SET_INT(0, "force-untracked-cache", &untracked_cache, + N_("enable untracked cache without testing the filesystem"), UC_FORCE), OPT_END() }; if (argc == 2 && !strcmp(argv[1], "-h")) - usage(update_index_usage[0]); + usage_with_options(update_index_usage, options); git_config(git_default_config, NULL); @@ -829,15 +1050,14 @@ int cmd_update_index(int argc, const char **argv, const char *prefix) case PARSE_OPT_DONE: { const char *path = ctx.argv[0]; - const char *p; + char *p; setup_work_tree(); p = prefix_path(prefix, prefix_length, path); - update_one(p, NULL, 0); + update_one(p); if (set_executable_bit) chmod_path(set_executable_bit, p); - if (p < path || p > path + strlen(path)) - free((char *)p); + free(p); ctx.argc--; ctx.argv++; break; @@ -852,37 +1072,90 @@ int cmd_update_index(int argc, const char **argv, const char *prefix) } argc = parse_options_end(&ctx); + getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf; + if (preferred_index_format) { + if (preferred_index_format < INDEX_FORMAT_LB || + INDEX_FORMAT_UB < preferred_index_format) + die("index-version %d not in range: %d..%d", + preferred_index_format, + INDEX_FORMAT_LB, INDEX_FORMAT_UB); + + if (the_index.version != preferred_index_format) + active_cache_changed |= SOMETHING_CHANGED; + the_index.version = preferred_index_format; + } + if (read_from_stdin) { - struct strbuf buf = STRBUF_INIT, nbuf = STRBUF_INIT; + struct strbuf buf = STRBUF_INIT; + struct strbuf unquoted = STRBUF_INIT; setup_work_tree(); - while (strbuf_getline(&buf, stdin, line_termination) != EOF) { - const char *p; - if (line_termination && buf.buf[0] == '"') { - strbuf_reset(&nbuf); - if (unquote_c_style(&nbuf, buf.buf, NULL)) + while (getline_fn(&buf, stdin) != EOF) { + char *p; + if (!nul_term_line && buf.buf[0] == '"') { + strbuf_reset(&unquoted); + if (unquote_c_style(&unquoted, buf.buf, NULL)) die("line is badly quoted"); - strbuf_swap(&buf, &nbuf); + strbuf_swap(&buf, &unquoted); } p = prefix_path(prefix, prefix_length, buf.buf); - update_one(p, NULL, 0); + update_one(p); if (set_executable_bit) chmod_path(set_executable_bit, p); - if (p < buf.buf || p > buf.buf + buf.len) - free((char *)p); + free(p); } - strbuf_release(&nbuf); + strbuf_release(&unquoted); strbuf_release(&buf); } + if (split_index > 0) { + init_split_index(&the_index); + the_index.cache_changed |= SPLIT_INDEX_ORDERED; + } else if (!split_index && the_index.split_index) { + /* + * can't discard_split_index(&the_index); because that + * will destroy split_index->base->cache[], which may + * be shared with the_index.cache[]. So yeah we're + * leaking a bit here. + */ + the_index.split_index = NULL; + the_index.cache_changed |= SOMETHING_CHANGED; + } + + switch (untracked_cache) { + case UC_UNSPECIFIED: + break; + case UC_DISABLE: + if (git_config_get_untracked_cache() == 1) + warning("core.untrackedCache is set to true; " + "remove or change it, if you really want to " + "disable the untracked cache"); + remove_untracked_cache(&the_index); + report(_("Untracked cache disabled")); + break; + case UC_TEST: + setup_work_tree(); + return !test_if_untracked_cache_is_supported(); + case UC_ENABLE: + case UC_FORCE: + if (git_config_get_untracked_cache() == 0) + warning("core.untrackedCache is set to false; " + "remove or change it, if you really want to " + "enable the untracked cache"); + add_untracked_cache(&the_index); + report(_("Untracked cache enabled for '%s'"), get_git_work_tree()); + break; + default: + die("Bug: bad untracked_cache value: %d", untracked_cache); + } + if (active_cache_changed) { if (newfd < 0) { if (refresh_args.flags & REFRESH_QUIET) exit(128); - unable_to_lock_index_die(get_index_file(), lock_error); + unable_to_lock_die(get_index_file(), lock_error); } - if (write_cache(newfd, active_cache, active_nr) || - commit_locked_index(lock_file)) + if (write_locked_index(&the_index, lock_file, COMMIT_LOCK)) die("Unable to write new index file"); } diff --git a/builtin/update-ref.c b/builtin/update-ref.c index 835c62ab15..7f30d3a76f 100644 --- a/builtin/update-ref.c +++ b/builtin/update-ref.c @@ -2,23 +2,370 @@ #include "refs.h" #include "builtin.h" #include "parse-options.h" +#include "quote.h" +#include "argv-array.h" static const char * const git_update_ref_usage[] = { - "git update-ref [options] -d <refname> [<oldval>]", - "git update-ref [options] <refname> <newval> [<oldval>]", + N_("git update-ref [<options>] -d <refname> [<old-val>]"), + N_("git update-ref [<options>] <refname> <new-val> [<old-val>]"), + N_("git update-ref [<options>] --stdin [-z]"), NULL }; +static char line_termination = '\n'; +static int update_flags; +static unsigned create_reflog_flag; +static const char *msg; + +/* + * Parse one whitespace- or NUL-terminated, possibly C-quoted argument + * and append the result to arg. Return a pointer to the terminator. + * Die if there is an error in how the argument is C-quoted. This + * function is only used if not -z. + */ +static const char *parse_arg(const char *next, struct strbuf *arg) +{ + if (*next == '"') { + const char *orig = next; + + if (unquote_c_style(arg, next, &next)) + die("badly quoted argument: %s", orig); + if (*next && !isspace(*next)) + die("unexpected character after quoted argument: %s", orig); + } else { + while (*next && !isspace(*next)) + strbuf_addch(arg, *next++); + } + + return next; +} + +/* + * Parse the reference name immediately after "command SP". If not + * -z, then handle C-quoting. Return a pointer to a newly allocated + * string containing the name of the reference, or NULL if there was + * an error. Update *next to point at the character that terminates + * the argument. Die if C-quoting is malformed or the reference name + * is invalid. + */ +static char *parse_refname(struct strbuf *input, const char **next) +{ + struct strbuf ref = STRBUF_INIT; + + if (line_termination) { + /* Without -z, use the next argument */ + *next = parse_arg(*next, &ref); + } else { + /* With -z, use everything up to the next NUL */ + strbuf_addstr(&ref, *next); + *next += ref.len; + } + + if (!ref.len) { + strbuf_release(&ref); + return NULL; + } + + if (check_refname_format(ref.buf, REFNAME_ALLOW_ONELEVEL)) + die("invalid ref format: %s", ref.buf); + + return strbuf_detach(&ref, NULL); +} + +/* + * The value being parsed is <oldvalue> (as opposed to <newvalue>; the + * difference affects which error messages are generated): + */ +#define PARSE_SHA1_OLD 0x01 + +/* + * For backwards compatibility, accept an empty string for update's + * <newvalue> in binary mode to be equivalent to specifying zeros. + */ +#define PARSE_SHA1_ALLOW_EMPTY 0x02 + +/* + * Parse an argument separator followed by the next argument, if any. + * If there is an argument, convert it to a SHA-1, write it to sha1, + * set *next to point at the character terminating the argument, and + * return 0. If there is no argument at all (not even the empty + * string), return 1 and leave *next unchanged. If the value is + * provided but cannot be converted to a SHA-1, die. flags can + * include PARSE_SHA1_OLD and/or PARSE_SHA1_ALLOW_EMPTY. + */ +static int parse_next_sha1(struct strbuf *input, const char **next, + unsigned char *sha1, + const char *command, const char *refname, + int flags) +{ + struct strbuf arg = STRBUF_INIT; + int ret = 0; + + if (*next == input->buf + input->len) + goto eof; + + if (line_termination) { + /* Without -z, consume SP and use next argument */ + if (!**next || **next == line_termination) + return 1; + if (**next != ' ') + die("%s %s: expected SP but got: %s", + command, refname, *next); + (*next)++; + *next = parse_arg(*next, &arg); + if (arg.len) { + if (get_sha1(arg.buf, sha1)) + goto invalid; + } else { + /* Without -z, an empty value means all zeros: */ + hashclr(sha1); + } + } else { + /* With -z, read the next NUL-terminated line */ + if (**next) + die("%s %s: expected NUL but got: %s", + command, refname, *next); + (*next)++; + if (*next == input->buf + input->len) + goto eof; + strbuf_addstr(&arg, *next); + *next += arg.len; + + if (arg.len) { + if (get_sha1(arg.buf, sha1)) + goto invalid; + } else if (flags & PARSE_SHA1_ALLOW_EMPTY) { + /* With -z, treat an empty value as all zeros: */ + warning("%s %s: missing <newvalue>, treating as zero", + command, refname); + hashclr(sha1); + } else { + /* + * With -z, an empty non-required value means + * unspecified: + */ + ret = 1; + } + } + + strbuf_release(&arg); + + return ret; + + invalid: + die(flags & PARSE_SHA1_OLD ? + "%s %s: invalid <oldvalue>: %s" : + "%s %s: invalid <newvalue>: %s", + command, refname, arg.buf); + + eof: + die(flags & PARSE_SHA1_OLD ? + "%s %s: unexpected end of input when reading <oldvalue>" : + "%s %s: unexpected end of input when reading <newvalue>", + command, refname); +} + + +/* + * The following five parse_cmd_*() functions parse the corresponding + * command. In each case, next points at the character following the + * command name and the following space. They each return a pointer + * to the character terminating the command, and die with an + * explanatory message if there are any parsing problems. All of + * these functions handle either text or binary format input, + * depending on how line_termination is set. + */ + +static const char *parse_cmd_update(struct ref_transaction *transaction, + struct strbuf *input, const char *next) +{ + struct strbuf err = STRBUF_INIT; + char *refname; + unsigned char new_sha1[20]; + unsigned char old_sha1[20]; + int have_old; + + refname = parse_refname(input, &next); + if (!refname) + die("update: missing <ref>"); + + if (parse_next_sha1(input, &next, new_sha1, "update", refname, + PARSE_SHA1_ALLOW_EMPTY)) + die("update %s: missing <newvalue>", refname); + + have_old = !parse_next_sha1(input, &next, old_sha1, "update", refname, + PARSE_SHA1_OLD); + + if (*next != line_termination) + die("update %s: extra input: %s", refname, next); + + if (ref_transaction_update(transaction, refname, + new_sha1, have_old ? old_sha1 : NULL, + update_flags | create_reflog_flag, + msg, &err)) + die("%s", err.buf); + + update_flags = 0; + free(refname); + strbuf_release(&err); + + return next; +} + +static const char *parse_cmd_create(struct ref_transaction *transaction, + struct strbuf *input, const char *next) +{ + struct strbuf err = STRBUF_INIT; + char *refname; + unsigned char new_sha1[20]; + + refname = parse_refname(input, &next); + if (!refname) + die("create: missing <ref>"); + + if (parse_next_sha1(input, &next, new_sha1, "create", refname, 0)) + die("create %s: missing <newvalue>", refname); + + if (is_null_sha1(new_sha1)) + die("create %s: zero <newvalue>", refname); + + if (*next != line_termination) + die("create %s: extra input: %s", refname, next); + + if (ref_transaction_create(transaction, refname, new_sha1, + update_flags | create_reflog_flag, + msg, &err)) + die("%s", err.buf); + + update_flags = 0; + free(refname); + strbuf_release(&err); + + return next; +} + +static const char *parse_cmd_delete(struct ref_transaction *transaction, + struct strbuf *input, const char *next) +{ + struct strbuf err = STRBUF_INIT; + char *refname; + unsigned char old_sha1[20]; + int have_old; + + refname = parse_refname(input, &next); + if (!refname) + die("delete: missing <ref>"); + + if (parse_next_sha1(input, &next, old_sha1, "delete", refname, + PARSE_SHA1_OLD)) { + have_old = 0; + } else { + if (is_null_sha1(old_sha1)) + die("delete %s: zero <oldvalue>", refname); + have_old = 1; + } + + if (*next != line_termination) + die("delete %s: extra input: %s", refname, next); + + if (ref_transaction_delete(transaction, refname, + have_old ? old_sha1 : NULL, + update_flags, msg, &err)) + die("%s", err.buf); + + update_flags = 0; + free(refname); + strbuf_release(&err); + + return next; +} + +static const char *parse_cmd_verify(struct ref_transaction *transaction, + struct strbuf *input, const char *next) +{ + struct strbuf err = STRBUF_INIT; + char *refname; + unsigned char old_sha1[20]; + + refname = parse_refname(input, &next); + if (!refname) + die("verify: missing <ref>"); + + if (parse_next_sha1(input, &next, old_sha1, "verify", refname, + PARSE_SHA1_OLD)) + hashclr(old_sha1); + + if (*next != line_termination) + die("verify %s: extra input: %s", refname, next); + + if (ref_transaction_verify(transaction, refname, old_sha1, + update_flags, &err)) + die("%s", err.buf); + + update_flags = 0; + free(refname); + strbuf_release(&err); + + return next; +} + +static const char *parse_cmd_option(struct strbuf *input, const char *next) +{ + if (!strncmp(next, "no-deref", 8) && next[8] == line_termination) + update_flags |= REF_NODEREF; + else + die("option unknown: %s", next); + return next + 8; +} + +static void update_refs_stdin(struct ref_transaction *transaction) +{ + struct strbuf input = STRBUF_INIT; + const char *next; + + if (strbuf_read(&input, 0, 1000) < 0) + die_errno("could not read from stdin"); + next = input.buf; + /* Read each line dispatch its command */ + while (next < input.buf + input.len) { + if (*next == line_termination) + die("empty command in input"); + else if (isspace(*next)) + die("whitespace before command: %s", next); + else if (starts_with(next, "update ")) + next = parse_cmd_update(transaction, &input, next + 7); + else if (starts_with(next, "create ")) + next = parse_cmd_create(transaction, &input, next + 7); + else if (starts_with(next, "delete ")) + next = parse_cmd_delete(transaction, &input, next + 7); + else if (starts_with(next, "verify ")) + next = parse_cmd_verify(transaction, &input, next + 7); + else if (starts_with(next, "option ")) + next = parse_cmd_option(&input, next + 7); + else + die("unknown command: %s", next); + + next++; + } + + strbuf_release(&input); +} + int cmd_update_ref(int argc, const char **argv, const char *prefix) { - const char *refname, *oldval, *msg = NULL; + const char *refname, *oldval; unsigned char sha1[20], oldsha1[20]; - int delete = 0, no_deref = 0, flags = 0; + int delete = 0, no_deref = 0, read_stdin = 0, end_null = 0; + unsigned int flags = 0; + int create_reflog = 0; struct option options[] = { - OPT_STRING( 'm', NULL, &msg, "reason", "reason of the update"), - OPT_BOOLEAN('d', NULL, &delete, "deletes the reference"), - OPT_BOOLEAN( 0 , "no-deref", &no_deref, - "update <refname> not the one it points to"), + OPT_STRING( 'm', NULL, &msg, N_("reason"), N_("reason of the update")), + OPT_BOOL('d', NULL, &delete, N_("delete the reference")), + OPT_BOOL( 0 , "no-deref", &no_deref, + N_("update <refname> not the one it points to")), + OPT_BOOL('z', NULL, &end_null, N_("stdin has NUL-terminated arguments")), + OPT_BOOL( 0 , "stdin", &read_stdin, N_("read updates from stdin")), + OPT_BOOL( 0 , "create-reflog", &create_reflog, N_("create a reflog")), OPT_END(), }; @@ -28,6 +375,30 @@ int cmd_update_ref(int argc, const char **argv, const char *prefix) if (msg && !*msg) die("Refusing to perform update with empty message."); + create_reflog_flag = create_reflog ? REF_FORCE_CREATE_REFLOG : 0; + + if (read_stdin) { + struct strbuf err = STRBUF_INIT; + struct ref_transaction *transaction; + + transaction = ref_transaction_begin(&err); + if (!transaction) + die("%s", err.buf); + if (delete || no_deref || argc > 0) + usage_with_options(git_update_ref_usage, options); + if (end_null) + line_termination = '\0'; + update_refs_stdin(transaction); + if (ref_transaction_commit(transaction, &err)) + die("%s", err.buf); + ref_transaction_free(transaction); + strbuf_release(&err); + return 0; + } + + if (end_null) + usage_with_options(git_update_ref_usage, options); + if (delete) { if (argc < 1 || argc > 2) usage_with_options(git_update_ref_usage, options); @@ -44,15 +415,29 @@ int cmd_update_ref(int argc, const char **argv, const char *prefix) die("%s: not a valid SHA1", value); } - hashclr(oldsha1); /* all-zero hash in case oldval is the empty string */ - if (oldval && *oldval && get_sha1(oldval, oldsha1)) - die("%s: not a valid old SHA1", oldval); + if (oldval) { + if (!*oldval) + /* + * The empty string implies that the reference + * must not already exist: + */ + hashclr(oldsha1); + else if (get_sha1(oldval, oldsha1)) + die("%s: not a valid old SHA1", oldval); + } if (no_deref) flags = REF_NODEREF; if (delete) - return delete_ref(refname, oldval ? oldsha1 : NULL, flags); + /* + * For purposes of backwards compatibility, we treat + * NULL_SHA1 as "don't care" here: + */ + return delete_ref(refname, + (oldval && !is_null_sha1(oldsha1)) ? oldsha1 : NULL, + flags); else return update_ref(msg, refname, sha1, oldval ? oldsha1 : NULL, - flags, DIE_ON_ERR); + flags | create_reflog_flag, + UPDATE_REFS_DIE_ON_ERR); } diff --git a/builtin/update-server-info.c b/builtin/update-server-info.c index b90dce6358..6c8cc3edc1 100644 --- a/builtin/update-server-info.c +++ b/builtin/update-server-info.c @@ -3,7 +3,7 @@ #include "parse-options.h" static const char * const update_server_info_usage[] = { - "git update-server-info [--force]", + N_("git update-server-info [--force]"), NULL }; @@ -11,10 +11,11 @@ int cmd_update_server_info(int argc, const char **argv, const char *prefix) { int force = 0; struct option options[] = { - OPT__FORCE(&force, "update the info files from scratch"), + OPT__FORCE(&force, N_("update the info files from scratch")), OPT_END() }; + git_config(git_default_config, NULL); argc = parse_options(argc, argv, prefix, options, update_server_info_usage, 0); if (argc > 0) diff --git a/builtin/upload-archive.c b/builtin/upload-archive.c index b928beb8ed..2caedf1849 100644 --- a/builtin/upload-archive.c +++ b/builtin/upload-archive.c @@ -7,6 +7,7 @@ #include "pkt-line.h" #include "sideband.h" #include "run-command.h" +#include "argv-array.h" static const char upload_archive_usage[] = "git upload-archive <repo>"; @@ -18,65 +19,44 @@ static const char deadchild[] = int cmd_upload_archive_writer(int argc, const char **argv, const char *prefix) { - const char *sent_argv[MAX_ARGS]; + struct argv_array sent_argv = ARGV_ARRAY_INIT; const char *arg_cmd = "argument "; - char *p, buf[4096]; - int sent_argc; - int len; if (argc != 2) usage(upload_archive_usage); - if (strlen(argv[1]) + 1 > sizeof(buf)) - die("insanely long repository name"); - - strcpy(buf, argv[1]); /* enter-repo smudges its argument */ - - if (!enter_repo(buf, 0)) - die("'%s' does not appear to be a git repository", buf); + if (!enter_repo(argv[1], 0)) + die("'%s' does not appear to be a git repository", argv[1]); /* put received options in sent_argv[] */ - sent_argc = 1; - sent_argv[0] = "git-upload-archive"; - for (p = buf;;) { - /* This will die if not enough free space in buf */ - len = packet_read_line(0, p, (buf + sizeof buf) - p); - if (len == 0) + argv_array_push(&sent_argv, "git-upload-archive"); + for (;;) { + char *buf = packet_read_line(0, NULL); + if (!buf) break; /* got a flush */ - if (sent_argc > MAX_ARGS - 2) - die("Too many options (>%d)", MAX_ARGS - 2); + if (sent_argv.argc > MAX_ARGS) + die("Too many options (>%d)", MAX_ARGS - 1); - if (p[len-1] == '\n') { - p[--len] = 0; - } - if (len < strlen(arg_cmd) || - strncmp(arg_cmd, p, strlen(arg_cmd))) + if (!starts_with(buf, arg_cmd)) die("'argument' token or flush expected"); - - len -= strlen(arg_cmd); - memmove(p, p + strlen(arg_cmd), len); - sent_argv[sent_argc++] = p; - p += len; - *p++ = 0; + argv_array_push(&sent_argv, buf + strlen(arg_cmd)); } - sent_argv[sent_argc] = NULL; /* parse all options sent by the client */ - return write_archive(sent_argc, sent_argv, prefix, 0, NULL, 1); + return write_archive(sent_argv.argc, sent_argv.argv, prefix, 0, NULL, 1); } __attribute__((format (printf, 1, 2))) static void error_clnt(const char *fmt, ...) { - char buf[1024]; + struct strbuf buf = STRBUF_INIT; va_list params; - int len; va_start(params, fmt); - len = vsprintf(buf, fmt, params); + strbuf_vaddf(&buf, fmt, params); va_end(params); - send_sideband(1, 3, buf, len, LARGE_PACKET_MAX); - die("sent error to the client: %s", buf); + send_sideband(1, 3, buf.buf, buf.len, LARGE_PACKET_MAX); + die("sent error to the client: %s", buf.buf); } static ssize_t process_input(int child_fd, int band) @@ -124,8 +104,7 @@ int cmd_upload_archive(int argc, const char **argv, const char *prefix) pfd[1].events = POLLIN; if (poll(pfd, 2, -1) < 0) { if (errno != EINTR) { - error("poll failed resuming: %s", - strerror(errno)); + error_errno("poll failed resuming"); sleep(1); } continue; diff --git a/builtin/var.c b/builtin/var.c index 99d068a532..aedbb53a2d 100644 --- a/builtin/var.c +++ b/builtin/var.c @@ -11,7 +11,7 @@ static const char *editor(int flag) { const char *pgm = git_editor(); - if (!pgm && flag & IDENT_ERROR_ON_NO_NAME) + if (!pgm && flag & IDENT_STRICT) die("Terminal is dumb, but EDITOR unset"); return pgm; @@ -55,7 +55,7 @@ static const char *read_var(const char *var) val = NULL; for (ptr = git_vars; ptr->read; ptr++) { if (strcmp(var, ptr->name) == 0) { - val = ptr->read(IDENT_ERROR_ON_NO_NAME); + val = ptr->read(IDENT_STRICT); break; } } diff --git a/builtin/verify-commit.c b/builtin/verify-commit.c new file mode 100644 index 0000000000..38bedf8f9f --- /dev/null +++ b/builtin/verify-commit.c @@ -0,0 +1,94 @@ +/* + * Builtin "git commit-commit" + * + * Copyright (c) 2014 Michael J Gruber <git@drmicha.warpmail.net> + * + * Based on git-verify-tag + */ +#include "cache.h" +#include "builtin.h" +#include "commit.h" +#include "run-command.h" +#include <signal.h> +#include "parse-options.h" +#include "gpg-interface.h" + +static const char * const verify_commit_usage[] = { + N_("git verify-commit [-v | --verbose] <commit>..."), + NULL +}; + +static int run_gpg_verify(const unsigned char *sha1, const char *buf, unsigned long size, unsigned flags) +{ + struct signature_check signature_check; + int ret; + + memset(&signature_check, 0, sizeof(signature_check)); + + ret = check_commit_signature(lookup_commit(sha1), &signature_check); + print_signature_buffer(&signature_check, flags); + + signature_check_clear(&signature_check); + return ret; +} + +static int verify_commit(const char *name, unsigned flags) +{ + enum object_type type; + unsigned char sha1[20]; + char *buf; + unsigned long size; + int ret; + + if (get_sha1(name, sha1)) + return error("commit '%s' not found.", name); + + buf = read_sha1_file(sha1, &type, &size); + if (!buf) + return error("%s: unable to read file.", name); + if (type != OBJ_COMMIT) + return error("%s: cannot verify a non-commit object of type %s.", + name, typename(type)); + + ret = run_gpg_verify(sha1, buf, size, flags); + + free(buf); + return ret; +} + +static int git_verify_commit_config(const char *var, const char *value, void *cb) +{ + int status = git_gpg_config(var, value, cb); + if (status) + return status; + return git_default_config(var, value, cb); +} + +int cmd_verify_commit(int argc, const char **argv, const char *prefix) +{ + int i = 1, verbose = 0, had_error = 0; + unsigned flags = 0; + const struct option verify_commit_options[] = { + OPT__VERBOSE(&verbose, N_("print commit contents")), + OPT_BIT(0, "raw", &flags, N_("print raw gpg status output"), GPG_VERIFY_RAW), + OPT_END() + }; + + git_config(git_verify_commit_config, NULL); + + argc = parse_options(argc, argv, prefix, verify_commit_options, + verify_commit_usage, PARSE_OPT_KEEP_ARGV0); + if (argc <= i) + usage_with_options(verify_commit_usage, verify_commit_options); + + if (verbose) + flags |= GPG_VERIFY_VERBOSE; + + /* sometimes the program was terminated because this signal + * was received in the process of writing the gpg input: */ + signal(SIGPIPE, SIG_IGN); + while (i < argc) + if (verify_commit(argv[i++], flags)) + had_error = 1; + return had_error; +} diff --git a/builtin/verify-pack.c b/builtin/verify-pack.c index e841b4a38d..c94e156932 100644 --- a/builtin/verify-pack.c +++ b/builtin/verify-pack.c @@ -8,7 +8,7 @@ static int verify_one_pack(const char *path, unsigned int flags) { - struct child_process index_pack; + struct child_process index_pack = CHILD_PROCESS_INIT; const char *argv[] = {"index-pack", NULL, NULL, NULL }; struct strbuf arg = STRBUF_INIT; int verbose = flags & VERIFY_PACK_VERBOSE; @@ -27,13 +27,11 @@ static int verify_one_pack(const char *path, unsigned int flags) * normalize these forms to "foo.pack" for "index-pack --verify". */ strbuf_addstr(&arg, path); - if (has_extension(arg.buf, ".idx")) - strbuf_splice(&arg, arg.len - 3, 3, "pack", 4); - else if (!has_extension(arg.buf, ".pack")) - strbuf_add(&arg, ".pack", 5); + if (strbuf_strip_suffix(&arg, ".idx") || + !ends_with(arg.buf, ".pack")) + strbuf_addstr(&arg, ".pack"); argv[2] = arg.buf; - memset(&index_pack, 0, sizeof(index_pack)); index_pack.argv = argv; index_pack.git_cmd = 1; @@ -53,7 +51,7 @@ static int verify_one_pack(const char *path, unsigned int flags) } static const char * const verify_pack_usage[] = { - "git verify-pack [-v|--verbose] [-s|--stat-only] <pack>...", + N_("git verify-pack [-v | --verbose] [-s | --stat-only] <pack>..."), NULL }; @@ -63,9 +61,9 @@ int cmd_verify_pack(int argc, const char **argv, const char *prefix) unsigned int flags = 0; int i; const struct option verify_pack_options[] = { - OPT_BIT('v', "verbose", &flags, "verbose", + OPT_BIT('v', "verbose", &flags, N_("verbose"), VERIFY_PACK_VERBOSE), - OPT_BIT('s', "stat-only", &flags, "show statistics only", + OPT_BIT('s', "stat-only", &flags, N_("show statistics only"), VERIFY_PACK_STAT_ONLY), OPT_END() }; diff --git a/builtin/verify-tag.c b/builtin/verify-tag.c index 28c2174338..99f8148cf7 100644 --- a/builtin/verify-tag.c +++ b/builtin/verify-tag.c @@ -14,70 +14,45 @@ #include "gpg-interface.h" static const char * const verify_tag_usage[] = { - "git verify-tag [-v|--verbose] <tag>...", + N_("git verify-tag [-v | --verbose] <tag>..."), NULL }; -static int run_gpg_verify(const char *buf, unsigned long size, int verbose) +static int git_verify_tag_config(const char *var, const char *value, void *cb) { - int len; - - len = parse_signature(buf, size); - if (verbose) - write_in_full(1, buf, len); - - if (size == len) - return error("no signature found"); - - return verify_signed_buffer(buf, len, buf + len, size - len, NULL); -} - -static int verify_tag(const char *name, int verbose) -{ - enum object_type type; - unsigned char sha1[20]; - char *buf; - unsigned long size; - int ret; - - if (get_sha1(name, sha1)) - return error("tag '%s' not found.", name); - - type = sha1_object_info(sha1, NULL); - if (type != OBJ_TAG) - return error("%s: cannot verify a non-tag object of type %s.", - name, typename(type)); - - buf = read_sha1_file(sha1, &type, &size); - if (!buf) - return error("%s: unable to read file.", name); - - ret = run_gpg_verify(buf, size, verbose); - - free(buf); - return ret; + int status = git_gpg_config(var, value, cb); + if (status) + return status; + return git_default_config(var, value, cb); } int cmd_verify_tag(int argc, const char **argv, const char *prefix) { int i = 1, verbose = 0, had_error = 0; + unsigned flags = 0; const struct option verify_tag_options[] = { - OPT__VERBOSE(&verbose, "print tag contents"), + OPT__VERBOSE(&verbose, N_("print tag contents")), + OPT_BIT(0, "raw", &flags, N_("print raw gpg status output"), GPG_VERIFY_RAW), OPT_END() }; - git_config(git_default_config, NULL); + git_config(git_verify_tag_config, NULL); argc = parse_options(argc, argv, prefix, verify_tag_options, verify_tag_usage, PARSE_OPT_KEEP_ARGV0); if (argc <= i) usage_with_options(verify_tag_usage, verify_tag_options); - /* sometimes the program was terminated because this signal - * was received in the process of writing the gpg input: */ - signal(SIGPIPE, SIG_IGN); - while (i < argc) - if (verify_tag(argv[i++], verbose)) + if (verbose) + flags |= GPG_VERIFY_VERBOSE; + + while (i < argc) { + unsigned char sha1[20]; + const char *name = argv[i++]; + if (get_sha1(name, sha1)) + had_error = !!error("tag '%s' not found.", name); + else if (gpg_verify_tag(sha1, name, flags)) had_error = 1; + } return had_error; } diff --git a/builtin/worktree.c b/builtin/worktree.c new file mode 100644 index 0000000000..96a2834a18 --- /dev/null +++ b/builtin/worktree.c @@ -0,0 +1,477 @@ +#include "cache.h" +#include "builtin.h" +#include "dir.h" +#include "parse-options.h" +#include "argv-array.h" +#include "branch.h" +#include "refs.h" +#include "run-command.h" +#include "sigchain.h" +#include "refs.h" +#include "utf8.h" +#include "worktree.h" + +static const char * const worktree_usage[] = { + N_("git worktree add [<options>] <path> [<branch>]"), + N_("git worktree prune [<options>]"), + N_("git worktree list [<options>]"), + NULL +}; + +struct add_opts { + int force; + int detach; + int checkout; + const char *new_branch; + int force_new_branch; +}; + +static int show_only; +static int verbose; +static unsigned long expire; + +static int prune_worktree(const char *id, struct strbuf *reason) +{ + struct stat st; + char *path; + int fd, len; + + if (!is_directory(git_path("worktrees/%s", id))) { + strbuf_addf(reason, _("Removing worktrees/%s: not a valid directory"), id); + return 1; + } + if (file_exists(git_path("worktrees/%s/locked", id))) + return 0; + if (stat(git_path("worktrees/%s/gitdir", id), &st)) { + strbuf_addf(reason, _("Removing worktrees/%s: gitdir file does not exist"), id); + return 1; + } + fd = open(git_path("worktrees/%s/gitdir", id), O_RDONLY); + if (fd < 0) { + strbuf_addf(reason, _("Removing worktrees/%s: unable to read gitdir file (%s)"), + id, strerror(errno)); + return 1; + } + len = st.st_size; + path = xmallocz(len); + read_in_full(fd, path, len); + close(fd); + while (len && (path[len - 1] == '\n' || path[len - 1] == '\r')) + len--; + if (!len) { + strbuf_addf(reason, _("Removing worktrees/%s: invalid gitdir file"), id); + free(path); + return 1; + } + path[len] = '\0'; + if (!file_exists(path)) { + struct stat st_link; + free(path); + /* + * the repo is moved manually and has not been + * accessed since? + */ + if (!stat(git_path("worktrees/%s/link", id), &st_link) && + st_link.st_nlink > 1) + return 0; + if (st.st_mtime <= expire) { + strbuf_addf(reason, _("Removing worktrees/%s: gitdir file points to non-existent location"), id); + return 1; + } else { + return 0; + } + } + free(path); + return 0; +} + +static void prune_worktrees(void) +{ + struct strbuf reason = STRBUF_INIT; + struct strbuf path = STRBUF_INIT; + DIR *dir = opendir(git_path("worktrees")); + struct dirent *d; + int ret; + if (!dir) + return; + while ((d = readdir(dir)) != NULL) { + if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, "..")) + continue; + strbuf_reset(&reason); + if (!prune_worktree(d->d_name, &reason)) + continue; + if (show_only || verbose) + printf("%s\n", reason.buf); + if (show_only) + continue; + strbuf_reset(&path); + strbuf_addstr(&path, git_path("worktrees/%s", d->d_name)); + ret = remove_dir_recursively(&path, 0); + if (ret < 0 && errno == ENOTDIR) + ret = unlink(path.buf); + if (ret) + error_errno(_("failed to remove '%s'"), path.buf); + } + closedir(dir); + if (!show_only) + rmdir(git_path("worktrees")); + strbuf_release(&reason); + strbuf_release(&path); +} + +static int prune(int ac, const char **av, const char *prefix) +{ + struct option options[] = { + OPT__DRY_RUN(&show_only, N_("do not remove, show only")), + OPT__VERBOSE(&verbose, N_("report pruned objects")), + OPT_EXPIRY_DATE(0, "expire", &expire, + N_("expire objects older than <time>")), + OPT_END() + }; + + expire = ULONG_MAX; + ac = parse_options(ac, av, prefix, options, worktree_usage, 0); + if (ac) + usage_with_options(worktree_usage, options); + prune_worktrees(); + return 0; +} + +static char *junk_work_tree; +static char *junk_git_dir; +static int is_junk; +static pid_t junk_pid; + +static void remove_junk(void) +{ + struct strbuf sb = STRBUF_INIT; + if (!is_junk || getpid() != junk_pid) + return; + if (junk_git_dir) { + strbuf_addstr(&sb, junk_git_dir); + remove_dir_recursively(&sb, 0); + strbuf_reset(&sb); + } + if (junk_work_tree) { + strbuf_addstr(&sb, junk_work_tree); + remove_dir_recursively(&sb, 0); + } + strbuf_release(&sb); +} + +static void remove_junk_on_signal(int signo) +{ + remove_junk(); + sigchain_pop(signo); + raise(signo); +} + +static const char *worktree_basename(const char *path, int *olen) +{ + const char *name; + int len; + + len = strlen(path); + while (len && is_dir_sep(path[len - 1])) + len--; + + for (name = path + len - 1; name > path; name--) + if (is_dir_sep(*name)) { + name++; + break; + } + + *olen = len; + return name; +} + +static int add_worktree(const char *path, const char *refname, + const struct add_opts *opts) +{ + struct strbuf sb_git = STRBUF_INIT, sb_repo = STRBUF_INIT; + struct strbuf sb = STRBUF_INIT; + const char *name; + struct stat st; + struct child_process cp; + struct argv_array child_env = ARGV_ARRAY_INIT; + int counter = 0, len, ret; + struct strbuf symref = STRBUF_INIT; + struct commit *commit = NULL; + + if (file_exists(path) && !is_empty_dir(path)) + die(_("'%s' already exists"), path); + + /* is 'refname' a branch or commit? */ + if (!opts->detach && !strbuf_check_branch_ref(&symref, refname) && + ref_exists(symref.buf)) { /* it's a branch */ + if (!opts->force) + die_if_checked_out(symref.buf, 0); + } else { /* must be a commit */ + commit = lookup_commit_reference_by_name(refname); + if (!commit) + die(_("invalid reference: %s"), refname); + } + + name = worktree_basename(path, &len); + strbuf_addstr(&sb_repo, + git_path("worktrees/%.*s", (int)(path + len - name), name)); + len = sb_repo.len; + if (safe_create_leading_directories_const(sb_repo.buf)) + die_errno(_("could not create leading directories of '%s'"), + sb_repo.buf); + while (!stat(sb_repo.buf, &st)) { + counter++; + strbuf_setlen(&sb_repo, len); + strbuf_addf(&sb_repo, "%d", counter); + } + name = strrchr(sb_repo.buf, '/') + 1; + + junk_pid = getpid(); + atexit(remove_junk); + sigchain_push_common(remove_junk_on_signal); + + if (mkdir(sb_repo.buf, 0777)) + die_errno(_("could not create directory of '%s'"), sb_repo.buf); + junk_git_dir = xstrdup(sb_repo.buf); + is_junk = 1; + + /* + * lock the incomplete repo so prune won't delete it, unlock + * after the preparation is over. + */ + strbuf_addf(&sb, "%s/locked", sb_repo.buf); + write_file(sb.buf, "initializing"); + + strbuf_addf(&sb_git, "%s/.git", path); + if (safe_create_leading_directories_const(sb_git.buf)) + die_errno(_("could not create leading directories of '%s'"), + sb_git.buf); + junk_work_tree = xstrdup(path); + + strbuf_reset(&sb); + strbuf_addf(&sb, "%s/gitdir", sb_repo.buf); + write_file(sb.buf, "%s", real_path(sb_git.buf)); + write_file(sb_git.buf, "gitdir: %s/worktrees/%s", + real_path(get_git_common_dir()), name); + /* + * This is to keep resolve_ref() happy. We need a valid HEAD + * or is_git_directory() will reject the directory. Any value which + * looks like an object ID will do since it will be immediately + * replaced by the symbolic-ref or update-ref invocation in the new + * worktree. + */ + strbuf_reset(&sb); + strbuf_addf(&sb, "%s/HEAD", sb_repo.buf); + write_file(sb.buf, "0000000000000000000000000000000000000000"); + strbuf_reset(&sb); + strbuf_addf(&sb, "%s/commondir", sb_repo.buf); + write_file(sb.buf, "../.."); + + fprintf_ln(stderr, _("Preparing %s (identifier %s)"), path, name); + + argv_array_pushf(&child_env, "%s=%s", GIT_DIR_ENVIRONMENT, sb_git.buf); + argv_array_pushf(&child_env, "%s=%s", GIT_WORK_TREE_ENVIRONMENT, path); + memset(&cp, 0, sizeof(cp)); + cp.git_cmd = 1; + + if (commit) + argv_array_pushl(&cp.args, "update-ref", "HEAD", + oid_to_hex(&commit->object.oid), NULL); + else + argv_array_pushl(&cp.args, "symbolic-ref", "HEAD", + symref.buf, NULL); + cp.env = child_env.argv; + ret = run_command(&cp); + if (ret) + goto done; + + if (opts->checkout) { + cp.argv = NULL; + argv_array_clear(&cp.args); + argv_array_pushl(&cp.args, "reset", "--hard", NULL); + cp.env = child_env.argv; + ret = run_command(&cp); + if (ret) + goto done; + } + + is_junk = 0; + free(junk_work_tree); + free(junk_git_dir); + junk_work_tree = NULL; + junk_git_dir = NULL; + +done: + strbuf_reset(&sb); + strbuf_addf(&sb, "%s/locked", sb_repo.buf); + unlink_or_warn(sb.buf); + argv_array_clear(&child_env); + strbuf_release(&sb); + strbuf_release(&symref); + strbuf_release(&sb_repo); + strbuf_release(&sb_git); + return ret; +} + +static int add(int ac, const char **av, const char *prefix) +{ + struct add_opts opts; + const char *new_branch_force = NULL; + const char *path, *branch; + struct option options[] = { + OPT__FORCE(&opts.force, N_("checkout <branch> even if already checked out in other worktree")), + OPT_STRING('b', NULL, &opts.new_branch, N_("branch"), + N_("create a new branch")), + OPT_STRING('B', NULL, &new_branch_force, N_("branch"), + N_("create or reset a branch")), + OPT_BOOL(0, "detach", &opts.detach, N_("detach HEAD at named commit")), + OPT_BOOL(0, "checkout", &opts.checkout, N_("populate the new working tree")), + OPT_END() + }; + + memset(&opts, 0, sizeof(opts)); + opts.checkout = 1; + ac = parse_options(ac, av, prefix, options, worktree_usage, 0); + if (!!opts.detach + !!opts.new_branch + !!new_branch_force > 1) + die(_("-b, -B, and --detach are mutually exclusive")); + if (ac < 1 || ac > 2) + usage_with_options(worktree_usage, options); + + path = prefix ? prefix_filename(prefix, strlen(prefix), av[0]) : av[0]; + branch = ac < 2 ? "HEAD" : av[1]; + + opts.force_new_branch = !!new_branch_force; + if (opts.force_new_branch) { + struct strbuf symref = STRBUF_INIT; + + opts.new_branch = new_branch_force; + + if (!opts.force && + !strbuf_check_branch_ref(&symref, opts.new_branch) && + ref_exists(symref.buf)) + die_if_checked_out(symref.buf, 0); + strbuf_release(&symref); + } + + if (ac < 2 && !opts.new_branch && !opts.detach) { + int n; + const char *s = worktree_basename(path, &n); + opts.new_branch = xstrndup(s, n); + } + + if (opts.new_branch) { + struct child_process cp; + memset(&cp, 0, sizeof(cp)); + cp.git_cmd = 1; + argv_array_push(&cp.args, "branch"); + if (opts.force_new_branch) + argv_array_push(&cp.args, "--force"); + argv_array_push(&cp.args, opts.new_branch); + argv_array_push(&cp.args, branch); + if (run_command(&cp)) + return -1; + branch = opts.new_branch; + } + + return add_worktree(path, branch, &opts); +} + +static void show_worktree_porcelain(struct worktree *wt) +{ + printf("worktree %s\n", wt->path); + if (wt->is_bare) + printf("bare\n"); + else { + printf("HEAD %s\n", sha1_to_hex(wt->head_sha1)); + if (wt->is_detached) + printf("detached\n"); + else + printf("branch %s\n", wt->head_ref); + } + printf("\n"); +} + +static void show_worktree(struct worktree *wt, int path_maxlen, int abbrev_len) +{ + struct strbuf sb = STRBUF_INIT; + int cur_path_len = strlen(wt->path); + int path_adj = cur_path_len - utf8_strwidth(wt->path); + + strbuf_addf(&sb, "%-*s ", 1 + path_maxlen + path_adj, wt->path); + if (wt->is_bare) + strbuf_addstr(&sb, "(bare)"); + else { + strbuf_addf(&sb, "%-*s ", abbrev_len, + find_unique_abbrev(wt->head_sha1, DEFAULT_ABBREV)); + if (!wt->is_detached) + strbuf_addf(&sb, "[%s]", shorten_unambiguous_ref(wt->head_ref, 0)); + else + strbuf_addstr(&sb, "(detached HEAD)"); + } + printf("%s\n", sb.buf); + + strbuf_release(&sb); +} + +static void measure_widths(struct worktree **wt, int *abbrev, int *maxlen) +{ + int i; + + for (i = 0; wt[i]; i++) { + int sha1_len; + int path_len = strlen(wt[i]->path); + + if (path_len > *maxlen) + *maxlen = path_len; + sha1_len = strlen(find_unique_abbrev(wt[i]->head_sha1, *abbrev)); + if (sha1_len > *abbrev) + *abbrev = sha1_len; + } +} + +static int list(int ac, const char **av, const char *prefix) +{ + int porcelain = 0; + + struct option options[] = { + OPT_BOOL(0, "porcelain", &porcelain, N_("machine-readable output")), + OPT_END() + }; + + ac = parse_options(ac, av, prefix, options, worktree_usage, 0); + if (ac) + usage_with_options(worktree_usage, options); + else { + struct worktree **worktrees = get_worktrees(); + int path_maxlen = 0, abbrev = DEFAULT_ABBREV, i; + + if (!porcelain) + measure_widths(worktrees, &abbrev, &path_maxlen); + + for (i = 0; worktrees[i]; i++) { + if (porcelain) + show_worktree_porcelain(worktrees[i]); + else + show_worktree(worktrees[i], path_maxlen, abbrev); + } + free_worktrees(worktrees); + } + return 0; +} + +int cmd_worktree(int ac, const char **av, const char *prefix) +{ + struct option options[] = { + OPT_END() + }; + + if (ac < 2) + usage_with_options(worktree_usage, options); + if (!strcmp(av[1], "add")) + return add(ac - 1, av + 1, prefix); + if (!strcmp(av[1], "prune")) + return prune(ac - 1, av + 1, prefix); + if (!strcmp(av[1], "list")) + return list(ac - 1, av + 1, prefix); + usage_with_options(worktree_usage, options); +} diff --git a/builtin/write-tree.c b/builtin/write-tree.c index b223af416f..084c0df783 100644 --- a/builtin/write-tree.c +++ b/builtin/write-tree.c @@ -10,7 +10,7 @@ #include "parse-options.h" static const char * const write_tree_usage[] = { - "git write-tree [--missing-ok] [--prefix=<prefix>/]", + N_("git write-tree [--missing-ok] [--prefix=<prefix>/]"), NULL }; @@ -21,13 +21,13 @@ int cmd_write_tree(int argc, const char **argv, const char *unused_prefix) unsigned char sha1[20]; const char *me = "git-write-tree"; struct option write_tree_options[] = { - OPT_BIT(0, "missing-ok", &flags, "allow missing objects", + OPT_BIT(0, "missing-ok", &flags, N_("allow missing objects"), WRITE_TREE_MISSING_OK), - { OPTION_STRING, 0, "prefix", &prefix, "<prefix>/", - "write tree object for a subdirectory <prefix>" , + { OPTION_STRING, 0, "prefix", &prefix, N_("<prefix>/"), + N_("write tree object for a subdirectory <prefix>") , PARSE_OPT_LITERAL_ARGHELP }, { OPTION_BIT, 0, "ignore-cache-tree", &flags, NULL, - "only useful for debugging", + N_("only useful for debugging"), PARSE_OPT_HIDDEN | PARSE_OPT_NOARG, NULL, WRITE_TREE_IGNORE_CACHE_TREE }, OPT_END() |