diff options
Diffstat (limited to 'builtin')
96 files changed, 14417 insertions, 14553 deletions
diff --git a/builtin/add.c b/builtin/add.c index 4bd98b799e..d9a2491e48 100644 --- a/builtin/add.c +++ b/builtin/add.c @@ -17,6 +17,7 @@ #include "revision.h" #include "bulk-checkin.h" #include "argv-array.h" +#include "submodule.h" static const char * const builtin_add_usage[] = { N_("git add [<options>] [--] <pathspec>..."), @@ -30,6 +31,21 @@ struct update_callback_data { int add_errors; }; +static void chmod_pathspec(struct pathspec *pathspec, int force_mode) +{ + int i; + + for (i = 0; i < active_nr; i++) { + struct cache_entry *ce = active_cache[i]; + + if (pathspec && !ce_path_match(ce, pathspec, NULL)) + continue; + + if (chmod_cache_entry(ce, force_mode) < 0) + fprintf(stderr, "cannot chmod '%s'", ce->name); + } +} + static int fix_unmerged_status(struct diff_filepair *p, struct update_callback_data *data) { @@ -65,7 +81,7 @@ 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)) { if (!(data->flags & ADD_CACHE_IGNORE_ERRORS)) die(_("updating files failed")); data->add_errors++; @@ -120,7 +136,7 @@ static char *prune_directory(struct dir_struct *dir, struct pathspec *pathspec, *dst++ = entry; } dir->nr = dst - dir->entries; - add_pathspec_matches_against_index(pathspec, seen); + add_pathspec_matches_against_index(pathspec, &the_index, seen); return seen; } @@ -238,6 +254,8 @@ static int ignore_add_errors, intent_to_add, ignore_missing; 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 */ @@ -263,6 +281,7 @@ static struct option builtin_add_options[] = { 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(), }; @@ -289,7 +308,7 @@ static int add_files(struct dir_struct *dir, int flags) } 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)) { if (!ignore_add_errors) die(_("adding files failed")); exit_status = 1; @@ -336,16 +355,14 @@ int cmd_add(int argc, const char **argv, const char *prefix) if (!show_only && ignore_missing) die(_("Option --ignore-missing can only be used together with --dry-run")); - if ((0 < addremove_explicit || take_worktree_changes) && !argc) { - static const char *whole[2] = { ":/", NULL }; - argc = 1; - argv = whole; - } + if (chmod_arg && ((chmod_arg[0] != '-' && chmod_arg[0] != '+') || + chmod_arg[1] != 'x' || chmod_arg[2])) + 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)); - hold_locked_index(&lock_file, 1); + hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR); flags = ((verbose ? ADD_CACHE_VERBOSE : 0) | (show_only ? ADD_CACHE_PRETEND : 0) | @@ -363,19 +380,21 @@ int cmd_add(int argc, const char **argv, const char *prefix) if (read_cache() < 0) die(_("index file corrupt")); + die_in_unpopulated_submodule(&the_index, prefix); + /* * 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, + PATHSPEC_SYMLINK_LEADING_PATH, prefix, argv); + die_path_inside_submodule(&the_index, &pathspec); + if (add_new_files) { int baselen; - struct pathspec empty_pathspec; /* Set up the default git porcelain excludes */ memset(&dir, 0, sizeof(dir)); @@ -384,9 +403,8 @@ int cmd_add(int argc, const char **argv, const char *prefix) setup_standard_excludes(&dir); } - memset(&empty_pathspec, 0, sizeof(empty_pathspec)); /* This picks up the paths that are not tracked */ - baselen = fill_directory(&dir, &pathspec); + baselen = fill_directory(&dir, &the_index, &pathspec); if (pathspec.nr) seen = prune_directory(&dir, &pathspec, baselen); } @@ -400,7 +418,7 @@ int cmd_add(int argc, const char **argv, const char *prefix) int i; if (!seen) - seen = find_pathspecs_matching_against_index(&pathspec); + seen = find_pathspecs_matching_against_index(&pathspec, &the_index); /* * file_exists() assumes exact match @@ -422,8 +440,9 @@ int cmd_add(int argc, const char **argv, const char *prefix) !file_exists(path))) { if (ignore_missing) { int dtype = DT_UNKNOWN; - if (is_excluded(&dir, path, &dtype)) - dir_add_ignored(&dir, path, pathspec.items[i].len); + if (is_excluded(&dir, &the_index, path, &dtype)) + dir_add_ignored(&dir, &the_index, + path, pathspec.items[i].len); } else die(_("pathspec '%s' did not match any files"), pathspec.items[i].original); @@ -439,6 +458,8 @@ int cmd_add(int argc, const char **argv, const char *prefix) if (add_new_files) exit_status |= add_files(&dir, flags); + if (chmod_arg && pathspec.nr) + chmod_pathspec(&pathspec, chmod_arg[0]); unplug_bulk_checkin(); finish: diff --git a/builtin/am.c b/builtin/am.c new file mode 100644 index 0000000000..8881d73615 --- /dev/null +++ b/builtin/am.c @@ -0,0 +1,2413 @@ +/* + * 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" +#include "apply.h" +#include "string-list.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, + PATCH_FORMAT_MBOXRD +}; + +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 */ + struct object_id orig_commit; + + /* 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. + */ +static void am_state_init(struct am_state *state) +{ + int gpgsign; + + memset(state, 0, sizeof(*state)); + + state->dir = git_pathdup("rebase-apply"); + + 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 void write_state_text(const struct am_state *state, + const char *name, const char *string) +{ + write_file(am_path(state, name), "%s", string); +} + +static void write_state_count(const struct am_state *state, + const char *name, int value) +{ + write_file(am_path(state, name), "%d", value); +} + +static void write_state_bool(const struct am_state *state, + const char *name, int value) +{ + 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)); +} + +/** + * Take a series of KEY='VALUE' lines where VALUE part is + * sq-quoted, and append <KEY, VALUE> at the end of the string list + */ +static int parse_key_value_squoted(char *buf, struct string_list *list) +{ + while (*buf) { + struct string_list_item *item; + char *np; + char *cp = strchr(buf, '='); + if (!cp) + return -1; + np = strchrnul(cp, '\n'); + *cp++ = '\0'; + item = string_list_append(list, buf); + + buf = np + (*np == '\n'); + *np = '\0'; + cp = sq_dequote(cp); + if (!cp) + return -1; + item->util = xstrdup(cp); + } + return 0; +} + +/** + * 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"); + struct strbuf buf = STRBUF_INIT; + struct string_list kv = STRING_LIST_INIT_DUP; + int retval = -1; /* assume failure */ + int fd; + + assert(!state->author_name); + assert(!state->author_email); + assert(!state->author_date); + + fd = open(filename, O_RDONLY); + if (fd < 0) { + if (errno == ENOENT) + return 0; + die_errno(_("could not open '%s' for reading"), filename); + } + strbuf_read(&buf, fd, 0); + close(fd); + if (parse_key_value_squoted(buf.buf, &kv)) + goto finish; + + if (kv.nr != 3 || + strcmp(kv.items[0].string, "GIT_AUTHOR_NAME") || + strcmp(kv.items[1].string, "GIT_AUTHOR_EMAIL") || + strcmp(kv.items[2].string, "GIT_AUTHOR_DATE")) + goto finish; + state->author_name = kv.items[0].util; + state->author_email = kv.items[1].util; + state->author_date = kv.items[2].util; + retval = 0; +finish: + string_list_clear(&kv, !!retval); + strbuf_release(&buf); + return retval; +} + +/** + * 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) +{ + const char *filename = am_path(state, "final-commit"); + write_file_buf(filename, state->msg, state->msg_len); +} + +/** + * 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) + oidclr(&state->orig_commit); + else if (get_oid_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)) { + struct object_id from_obj, to_obj; + + if (sb.len != GIT_SHA1_HEXSZ * 2 + 1) { + ret = error(invalid_line, sb.buf); + goto finish; + } + + if (get_oid_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_oid_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.hash, to_obj.hash)) + ret = error(_("Failed to copy notes from '%s' to '%s'"), + oid_to_hex(&from_obj), oid_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, int mboxrd) +{ + 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"); + if (mboxrd) + argv_array_push(&cp.args, "--mboxrd"); + 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) { + if (in != stdin) + fclose(in); + return error_errno(_("could not open '%s' for writing"), + mail); + } + + ret = fn(out, in, keep_cr); + + fclose(out); + if (in != stdin) + 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)) { + timestamp_t timestamp; + long tz, tz2; + char *end; + + errno = 0; + timestamp = parse_timestamp(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, 0); + 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); + case PATCH_FORMAT_MBOXRD: + return split_mail_mbox(state, paths, keep_cr, 1); + 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) +{ + struct object_id curr_head; + 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_oid("HEAD", &curr_head)) { + write_state_text(state, "abort-safety", oid_to_hex(&curr_head)); + if (!state->rebasing) + update_ref_oid("am", "ORIG_HEAD", &curr_head, NULL, 0, + UPDATE_REFS_DIE_ON_ERR); + } else { + write_state_text(state, "abort-safety", ""); + if (!state->rebasing) + delete_ref(NULL, "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) +{ + struct object_id head; + + 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")); + + oidclr(&state->orig_commit); + unlink(am_path(state, "original-commit")); + + if (!get_oid("HEAD", &head)) + write_state_text(state, "abort-safety", oid_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, LOCK_DIE_ON_ERROR); + 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) +{ + struct object_id head; + int i; + + if (!get_sha1_tree("HEAD", head.hash)) { + 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); +} + +/** + * Appends signoff to the "msg" field of the am_state. + */ +static void am_append_signoff(struct am_state *state) +{ + char *cp; + struct strbuf mine = STRBUF_INIT; + struct strbuf sb = STRBUF_INIT; + + strbuf_attach(&sb, state->msg, state->msg_len, state->msg_len); + + /* our sign-off */ + strbuf_addf(&mine, "\n%s%s\n", + sign_off_header, + fmt_name(getenv("GIT_COMMITTER_NAME"), + getenv("GIT_COMMITTER_EMAIL"))); + + /* Does sb end with it already? */ + 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); + 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 = xfopen(mail, "r"); + mi.output = xfopen(am_path(state, "info"), "w"); + 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.")); + die_user_resolve(state); + } + + strbuf_addstr(&msg, "\n\n"); + strbuf_addbuf(&msg, &mi.log_message); + strbuf_stripspace(&msg, 0); + + 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_oid(struct object_id *commit_id, const char *mail) +{ + struct strbuf sb = STRBUF_INIT; + FILE *fp = xfopen(mail, "r"); + const char *x; + int ret = 0; + + if (strbuf_getline_lf(&sb, fp) || + !skip_prefix(sb.buf, "From ", &x) || + get_oid_hex(x, commit_id) < 0) + ret = -1; + + strbuf_release(&sb); + fclose(fp); + return ret; +} + +/** + * 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, *msg; + size_t ident_len; + struct ident_split id; + + buffer = logmsg_reencode(commit, NULL, get_commit_output_encoding()); + + ident_line = find_commit_header(buffer, "author", &ident_len); + + if (split_ident_line(&id, ident_line, ident_len) < 0) + die(_("invalid ident line: %.*s"), (int)ident_len, ident_line); + + assert(!state->author_name); + if (id.name_begin) + state->author_name = + xmemdupz(id.name_begin, id.name_end - id.name_begin); + else + state->author_name = xstrdup(""); + + assert(!state->author_email); + if (id.mail_begin) + state->author_email = + xmemdupz(id.mail_begin, id.mail_end - id.mail_begin); + else + state->author_email = xstrdup(""); + + assert(!state->author_date); + state->author_date = xstrdup(show_ident_date(&id, DATE_MODE(NORMAL))); + + 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); + unuse_commit_buffer(commit, buffer); +} + +/** + * 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; + struct object_id head; + struct rev_info rev_info; + FILE *fp; + + if (!get_sha1_tree("HEAD", head.hash)) + tree = lookup_tree(&head); + else + tree = lookup_tree(&empty_tree_oid); + + 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; + struct object_id commit_oid; + + if (get_mail_commit_oid(&commit_oid, mail) < 0) + die(_("could not parse %s"), mail); + + commit = lookup_commit_or_die(&commit_oid, mail); + + get_commit_info(state, commit); + + write_commit_patch(state, commit); + + oidcpy(&state->orig_commit, &commit_oid); + write_state_text(state, "original-commit", oid_to_hex(&commit_oid)); + + 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 argv_array apply_paths = ARGV_ARRAY_INIT; + struct argv_array apply_opts = ARGV_ARRAY_INIT; + struct apply_state apply_state; + int res, opts_left; + static struct lock_file lock_file; + int force_apply = 0; + int options = 0; + + if (init_apply_state(&apply_state, NULL, &lock_file)) + die("BUG: init_apply_state() failed"); + + argv_array_push(&apply_opts, "apply"); + argv_array_pushv(&apply_opts, state->git_apply_opts.argv); + + opts_left = apply_parse_options(apply_opts.argc, apply_opts.argv, + &apply_state, &force_apply, &options, + NULL); + + if (opts_left != 0) + die("unknown option passed through to git apply"); + + if (index_file) { + apply_state.index_file = index_file; + apply_state.cached = 1; + } else + apply_state.check_index = 1; + + /* + * 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) + apply_state.apply_verbosity = verbosity_silent; + + if (check_apply_state(&apply_state, force_apply)) + die("BUG: check_apply_state() failed"); + + argv_array_push(&apply_paths, am_path(state, "patch")); + + res = apply_all_patches(&apply_state, apply_paths.argc, apply_paths.argv, options); + + argv_array_clear(&apply_paths); + argv_array_clear(&apply_opts); + clear_apply_state(&apply_state); + + if (res) + return res; + + if (index_file) { + /* Reload index as apply_all_patches() will have modified it. */ + discard_cache(); + read_cache_from(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; +} + +/** + * 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) +{ + struct object_id orig_tree, their_tree, our_tree; + const struct object_id *bases[1] = { &orig_tree }; + struct merge_options o; + struct commit *result; + char *their_tree_name; + + if (get_oid("HEAD", &our_tree) < 0) + hashcpy(our_tree.hash, 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.hash, &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_oid(&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(their_tree.hash, &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 their_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. + */ + + init_merge_options(&o); + + o.branch1 = "HEAD"; + their_tree_name = xstrfmt("%.*s", linelen(state->msg), state->msg); + o.branch2 = their_tree_name; + + if (state->quiet) + o.verbosity = 0; + + if (merge_recursive_generic(&o, &our_tree, &their_tree, 1, bases, &result)) { + rerere(state->allow_rerere_autoupdate); + free(their_tree_name); + return error(_("Failed to merge in the changes.")); + } + + free(their_tree_name); + 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) +{ + struct object_id tree, parent, commit; + const struct object_id *old_oid; + 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.hash, 0, NULL)) + die(_("git write-tree failed to write a tree")); + + if (!get_sha1_commit("HEAD", parent.hash)) { + old_oid = &parent; + commit_list_insert(lookup_commit(&parent), &parents); + } else { + old_oid = 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.hash, parents, commit.hash, + 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_oid(sb.buf, "HEAD", &commit, old_oid, 0, + UPDATE_REFS_DIE_ON_ERR); + + if (state->rebasing) { + FILE *fp = xfopen(am_path(state, "rewritten"), "a"); + + assert(!is_null_oid(&state->orig_commit)); + fprintf(fp, "%s ", oid_to_hex(&state->orig_commit)); + fprintf(fp, "%s\n", oid_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; + + reset_ident_date(); + + 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 */ + + if (state->signoff) + am_append_signoff(state); + + 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" + "You should 'git add' each file with resolved conflicts to mark them as such.\n" + "You might run `git rm` on a file to accept \"deleted by them\" for it.")); + 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, LOCK_DIE_ON_ERROR); + + 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, LOCK_DIE_ON_ERROR); + + 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 struct object_id *head, const struct object_id *remote) +{ + struct tree *head_tree, *remote_tree, *index_tree; + struct object_id index; + + head_tree = parse_tree_indirect(head); + if (!head_tree) + return error(_("Could not parse object '%s'."), oid_to_hex(head)); + + remote_tree = parse_tree_indirect(remote); + if (!remote_tree) + return error(_("Could not parse object '%s'."), oid_to_hex(remote)); + + read_cache_unmerged(); + + if (fast_forward_to(head_tree, head_tree, 1)) + return -1; + + if (write_cache_as_tree(index.hash, 0, NULL)) + return -1; + + index_tree = parse_tree_indirect(&index); + if (!index_tree) + return error(_("Could not parse object '%s'."), oid_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) +{ + struct object_id head; + + am_rerere_clear(); + + if (get_oid("HEAD", &head)) + hashcpy(head.hash, 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; + struct object_id abort_safety, head; + + if (file_exists(am_path(state, "dirtyindex"))) + return 0; + + if (read_state_file(&sb, state, "abort-safety", 1) > 0) { + if (get_oid_hex(sb.buf, &abort_safety)) + die(_("could not parse %s"), am_path(state, "abort-safety")); + } else + oidclr(&abort_safety); + + if (get_oid("HEAD", &head)) + oidclr(&head); + + if (!oidcmp(&head, &abort_safety)) + return 1; + + warning(_("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) +{ + struct object_id curr_head, orig_head; + 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.hash, NULL); + has_curr_head = curr_branch && !is_null_oid(&curr_head); + if (!has_curr_head) + hashcpy(curr_head.hash, EMPTY_TREE_SHA1_BIN); + + has_orig_head = !get_oid("ORIG_HEAD", &orig_head); + if (!has_orig_head) + hashcpy(orig_head.hash, EMPTY_TREE_SHA1_BIN); + + clean_index(&curr_head, &orig_head); + + if (has_orig_head) + update_ref_oid("am --abort", "HEAD", &orig_head, + has_curr_head ? &curr_head : NULL, 0, + UPDATE_REFS_DIE_ON_ERR); + else if (curr_branch) + delete_ref(NULL, 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 if (!strcmp(arg, "mboxrd")) + *opt_value = PATCH_FORMAT_MBOXRD; + 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() + }; + + if (argc == 2 && !strcmp(argv[1], "-h")) + usage_with_options(usage, options); + + git_config(git_am_config, NULL); + + am_state_init(&state); + + 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/apply.c b/builtin/apply.c index 0769b09287..81b9a61c37 100644 --- a/builtin/apply.c +++ b/builtin/apply.c @@ -1,4679 +1,36 @@ -/* - * apply.c - * - * Copyright (C) Linus Torvalds, 2005 - * - * This applies patches on top of some (arbitrary) version of the SCM. - * - */ #include "cache.h" -#include "lockfile.h" -#include "cache-tree.h" -#include "quote.h" -#include "blob.h" -#include "delta.h" #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 - * files that are being modified, but doesn't apply the patch - * --stat does just a diffstat, and doesn't actually apply - * --numstat does numeric diffstat, and doesn't actually apply - * --index-info shows the old and new index info for paths if available. - * --index updates the cache as well. - * --cached updates only the cache without ever touching the working tree. - */ -static const char *prefix; -static int prefix_length = -1; -static int newfd = -1; +#include "lockfile.h" +#include "apply.h" -static int unidiff_zero; -static int p_value = 1; -static int p_value_known; -static int check_index; -static int update_index; -static int cached; -static int diffstat; -static int numstat; -static int summary; -static int check; -static int apply = 1; -static int apply_in_reverse; -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[] = { N_("git apply [<options>] [<patch>...]"), NULL }; -static enum ws_error_action { - nowarn_ws_error, - warn_on_ws_error, - die_on_ws_error, - correct_ws_error -} ws_error_action = warn_on_ws_error; -static int whitespace_error; -static int squelch_whitespace_errors = 5; -static int applied_after_fixing_ws; - -static enum ws_ignore { - ignore_ws_none, - ignore_ws_change -} ws_ignore_action = ignore_ws_none; - - -static const char *patch_input_file; -static const char *root; -static int root_len; -static int read_stdin = 1; -static int options; - -static void parse_whitespace_option(const char *option) -{ - if (!option) { - ws_error_action = warn_on_ws_error; - return; - } - if (!strcmp(option, "warn")) { - ws_error_action = warn_on_ws_error; - return; - } - if (!strcmp(option, "nowarn")) { - ws_error_action = nowarn_ws_error; - return; - } - if (!strcmp(option, "error")) { - ws_error_action = die_on_ws_error; - return; - } - if (!strcmp(option, "error-all")) { - ws_error_action = die_on_ws_error; - squelch_whitespace_errors = 0; - return; - } - if (!strcmp(option, "strip") || !strcmp(option, "fix")) { - ws_error_action = correct_ws_error; - return; - } - die(_("unrecognized whitespace option '%s'"), option); -} - -static void parse_ignorewhitespace_option(const char *option) -{ - if (!option || !strcmp(option, "no") || - !strcmp(option, "false") || !strcmp(option, "never") || - !strcmp(option, "none")) { - ws_ignore_action = ignore_ws_none; - return; - } - if (!strcmp(option, "change")) { - ws_ignore_action = ignore_ws_change; - return; - } - die(_("unrecognized whitespace ignore option '%s'"), option); -} - -static void set_default_whitespace_mode(const char *whitespace_option) -{ - if (!whitespace_option && !apply_default_whitespace) - ws_error_action = (apply ? warn_on_ws_error : nowarn_ws_error); -} - -/* - * For "diff-stat" like behaviour, we keep track of the biggest change - * we've seen, and the longest filename. That allows us to do simple - * scaling. - */ -static int max_change, max_len; - -/* - * Various "current state", notably line numbers and what - * file (and how) we're patching right now.. The "is_xxxx" - * things are flags, where -1 means "don't know yet". - */ -static int linenr = 1; - -/* - * This represents one "hunk" from a patch, starting with - * "@@ -oldpos,oldlines +newpos,newlines @@" marker. The - * patch text is pointed at by patch, and its byte length - * is stored in size. leading and trailing are the number - * of context lines. - */ -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 linenr; - struct fragment *next; -}; - -/* - * When dealing with a binary patch, we reuse "leading" field - * to store the type of the binary hunk, either deflated "delta" - * or deflated "literal". - */ -#define binary_patch_method leading -#define BINARY_DELTA_DEFLATED 1 -#define BINARY_LITERAL_DEFLATED 2 - -/* - * This represents a "patch" to a file, both metainfo changes - * such as creation/deletion, filemode and content changes represented - * as a series of fragments. - */ -struct patch { - char *new_name, *old_name, *def_name; - unsigned int old_mode, new_mode; - int is_new, is_delete; /* -1 = unknown, 0 = false, 1 = true */ - int rejected; - unsigned ws_rule; - int lines_added, lines_deleted; - int score; - unsigned int is_toplevel_relative:1; - unsigned int inaccurate_eof:1; - unsigned int is_binary:1; - 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 */ - unsigned char threeway_stage[3][20]; -}; - -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 - * one), and its contents hashes to 'hash'. - */ -struct line { - size_t len; - unsigned hash : 24; - unsigned flag : 8; -#define LINE_COMMON 1 -#define LINE_PATCHED 2 -}; - -/* - * This represents a "file", which is an array of "lines". - */ -struct image { - char *buf; - size_t len; - size_t nr; - size_t alloc; - struct line *line_allocated; - struct line *line; -}; - -/* - * Records filenames that have been touched, in order to handle - * the case where more than one patches touch the same file. - */ - -static struct string_list fn_table; - -static uint32_t hash_line(const char *cp, size_t len) -{ - size_t i; - uint32_t h; - for (i = 0, h = 0; i < len; i++) { - if (!isspace(cp[i])) { - h = h * 3 + (cp[i] & 0xff); - } - } - return h; -} - -/* - * Compare lines s1 of length n1 and s2 of length n2, ignoring - * whitespace difference. Returns 1 if they match, 0 otherwise - */ -static int fuzzy_matchlines(const char *s1, size_t n1, - const char *s2, size_t n2) -{ - const char *last1 = s1 + n1 - 1; - const char *last2 = s2 + n2 - 1; - int result = 0; - - /* ignore line endings */ - while ((*last1 == '\r') || (*last1 == '\n')) - last1--; - while ((*last2 == '\r') || (*last2 == '\n')) - last2--; - - /* 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; - while (!result) { - result = *s1++ - *s2++; - /* - * Skip whitespace inside. We check for whitespace on - * both buffers because we don't want "a b" to match - * "ab" - */ - if (isspace(*s1) && isspace(*s2)) { - while (isspace(*s1) && s1 <= last1) - s1++; - while (isspace(*s2) && s2 <= last2) - s2++; - } - /* - * If we reached the end on one side only, - * lines don't match - */ - if ( - ((s2 > last2) && (s1 <= last1)) || - ((s1 > last1) && (s2 <= last2))) - return 0; - if ((s1 > last1) && (s2 > last2)) - break; - } - - return !result; -} - -static void add_line_info(struct image *img, const char *bol, size_t len, unsigned flag) -{ - ALLOC_GROW(img->line_allocated, img->nr + 1, img->alloc); - img->line_allocated[img->nr].len = len; - img->line_allocated[img->nr].hash = hash_line(bol, len); - img->line_allocated[img->nr].flag = flag; - 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) -{ - const char *cp, *ep; - - memset(image, 0, sizeof(*image)); - image->buf = buf; - image->len = len; - - if (!prepare_linetable) - return; - - ep = image->buf + image->len; - cp = image->buf; - while (cp < ep) { - const char *next; - for (next = cp; next < ep && *next != '\n'; next++) - ; - if (next < ep) - next++; - add_line_info(image, cp, next - cp, 0); - cp = next; - } - image->line = image->line_allocated; -} - -static void clear_image(struct image *image) -{ - free(image->buf); - free(image->line_allocated); - memset(image, 0, sizeof(*image)); -} - -/* fmt must contain _one_ %s and no other substitution */ -static void say_patch_name(FILE *output, const char *fmt, struct patch *patch) -{ - 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, &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, &sb, NULL, 0); - } - fprintf(output, fmt, sb.buf); - fputc('\n', output); - strbuf_release(&sb); -} - -#define SLOP (16) - -static void read_patch_file(struct strbuf *sb, int fd) -{ - if (strbuf_read(sb, fd, 0) < 0) - die_errno("git apply: failed to read"); - - /* - * Make sure that we have some slop in the buffer - * so that we can do speculative "memcmp" etc, and - * see to it that it is NUL-filled. - */ - strbuf_grow(sb, SLOP); - memset(sb->buf + sb->len, 0, SLOP); -} - -static unsigned long linelen(const char *buffer, unsigned long size) -{ - unsigned long len = 0; - while (size--) { - len++; - if (*buffer++ == '\n') - break; - } - return len; -} - -static int is_dev_null(const char *str) -{ - 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) -{ - if (c == ' ' && !(terminate & TERM_SPACE)) - return 0; - if (c == '\t' && !(terminate & TERM_TAB)) - return 0; - - return 1; -} - -/* remove double slashes to make --index work with such filenames */ -static char *squash_slash(char *name) -{ - int i = 0, j = 0; - - if (!name) - return NULL; - - while (name[i]) { - if ((name[j++] = name[i++]) == '/') - while (name[i] == '/') - i++; - } - name[j] = '\0'; - return name; -} - -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.info/?l=git&m=112927316408690&w=2 - */ - if (unquote_c_style(&name, line, NULL)) { - strbuf_release(&name); - return NULL; - } - - for (cp = name.buf; p_value; p_value--) { - cp = strchr(cp, '/'); - if (!cp) { - strbuf_release(&name); - return NULL; - } - cp++; - } - - strbuf_remove(&name, 0, cp - name.buf); - if (root) - strbuf_insert(&name, 0, root, root_len); - return squash_slash(strbuf_detach(&name, NULL)); -} - -static size_t sane_tz_len(const char *line, size_t len) -{ - const char *tz, *p; - - if (len < strlen(" +0500") || line[len-strlen(" +0500")] != ' ') - return 0; - tz = line + len - strlen(" +0500"); - - if (tz[1] != '+' && tz[1] != '-') - return 0; - - for (p = tz + 2; p != line + len; p++) - if (!isdigit(*p)) - return 0; - - return line + len - tz; -} - -static size_t tz_with_colon_len(const char *line, size_t len) -{ - const char *tz, *p; - - if (len < strlen(" +08:00") || line[len - strlen(":00")] != ':') - return 0; - tz = line + len - strlen(" +08:00"); - - if (tz[0] != ' ' || (tz[1] != '+' && tz[1] != '-')) - return 0; - p = tz + 2; - if (!isdigit(*p++) || !isdigit(*p++) || *p++ != ':' || - !isdigit(*p++) || !isdigit(*p++)) - return 0; - - return line + len - tz; -} - -static size_t date_len(const char *line, size_t len) -{ - const char *date, *p; - - if (len < strlen("72-02-05") || line[len-strlen("-05")] != '-') - return 0; - p = date = line + len - strlen("72-02-05"); - - if (!isdigit(*p++) || !isdigit(*p++) || *p++ != '-' || - !isdigit(*p++) || !isdigit(*p++) || *p++ != '-' || - !isdigit(*p++) || !isdigit(*p++)) /* Not a date. */ - return 0; - - if (date - line >= strlen("19") && - isdigit(date[-1]) && isdigit(date[-2])) /* 4-digit year */ - date -= strlen("19"); - - return line + len - date; -} - -static size_t short_time_len(const char *line, size_t len) -{ - const char *time, *p; - - if (len < strlen(" 07:01:32") || line[len-strlen(":32")] != ':') - return 0; - p = time = line + len - strlen(" 07:01:32"); - - /* Permit 1-digit hours? */ - if (*p++ != ' ' || - !isdigit(*p++) || !isdigit(*p++) || *p++ != ':' || - !isdigit(*p++) || !isdigit(*p++) || *p++ != ':' || - !isdigit(*p++) || !isdigit(*p++)) /* Not a time. */ - return 0; - - return line + len - time; -} - -static size_t fractional_time_len(const char *line, size_t len) -{ - const char *p; - size_t n; - - /* Expected format: 19:41:17.620000023 */ - if (!len || !isdigit(line[len - 1])) - return 0; - p = line + len - 1; - - /* Fractional seconds. */ - while (p > line && isdigit(*p)) - p--; - if (*p != '.') - return 0; - - /* Hours, minutes, and whole seconds. */ - n = short_time_len(line, p - line); - if (!n) - return 0; - - return line + len - p + n; -} - -static size_t trailing_spaces_len(const char *line, size_t len) -{ - const char *p; - - /* Expected format: ' ' x (1 or more) */ - if (!len || line[len - 1] != ' ') - return 0; - - p = line + len; - while (p != line) { - p--; - if (*p != ' ') - return line + len - (p + 1); - } - - /* All spaces! */ - return len; -} - -static size_t diff_timestamp_len(const char *line, size_t len) -{ - const char *end = line + len; - size_t n; - - /* - * Posix: 2010-07-05 19:41:17 - * GNU: 2010-07-05 19:41:17.620000023 -0500 - */ - - if (!isdigit(end[-1])) - return 0; - - n = sane_tz_len(line, end - line); - if (!n) - n = tz_with_colon_len(line, end - line); - end -= n; - - n = short_time_len(line, end - line); - if (!n) - n = fractional_time_len(line, end - line); - end -= n; - - n = date_len(line, end - line); - if (!n) /* No date. Too bad. */ - return 0; - end -= n; - - if (end == line) /* No space before date. */ - return 0; - if (end[-1] == '\t') { /* Success! */ - end--; - return line + len - end; - } - if (end[-1] != ' ') /* No space before date. */ - return 0; - - /* Whitespace damage. */ - end -= trailing_spaces_len(line, end - line); - return line + len - end; -} - -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; - - if (p_value == 0) - start = line; - while (line != end) { - char c = *line; - - if (!end && isspace(c)) { - if (c == '\n') - break; - if (name_terminate(start, line-start, c, terminate)) - break; - } - line++; - if (c == '/' && !--p_value) - start = line; - } - if (!start) - return squash_slash(xstrdup_or_null(def)); - len = line - start; - if (!len) - return squash_slash(xstrdup_or_null(def)); - - /* - * Generally we prefer the shorter name, especially - * if the other one is just a variation of that with - * something else tacked on to the end (ie "file.orig" - * or "file~"). - */ - if (def) { - int deflen = strlen(def); - if (deflen < len && !strncmp(start, def, deflen)) - 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'; - return squash_slash(ret); - } - - return squash_slash(xmemdupz(start, len)); -} - -static char *find_name(const char *line, char *def, int p_value, int terminate) -{ - if (*line == '"') { - char *name = find_name_gnu(line, def, p_value); - if (name) - return name; - } - - return find_name_common(line, def, p_value, NULL, terminate); -} - -static char *find_name_traditional(const char *line, char *def, int p_value) -{ - size_t len; - size_t date_len; - - if (*line == '"') { - char *name = find_name_gnu(line, def, p_value); - if (name) - return name; - } - - len = strchrnul(line, '\n') - line; - date_len = diff_timestamp_len(line, len); - if (!date_len) - return find_name_common(line, def, p_value, NULL, TERM_TAB); - len -= date_len; - - return find_name_common(line, def, p_value, line + len, 0); -} - -static int count_slashes(const char *cp) -{ - int cnt = 0; - char ch; - - while ((ch = *cp++)) - if (ch == '/') - cnt++; - return cnt; -} - -/* - * Given the string after "--- " or "+++ ", guess the appropriate - * p_value for the given patch. - */ -static int guess_p_value(const char *nameline) -{ - char *name, *cp; - int val = -1; - - if (is_dev_null(nameline)) - return -1; - name = find_name_traditional(nameline, NULL, 0); - if (!name) - return -1; - cp = strchr(name, '/'); - if (!cp) - val = 0; - else if (prefix) { - /* - * Does it begin with "a/$our-prefix" and such? Then this is - * very likely to apply to our directory. - */ - if (!strncmp(name, prefix, prefix_length)) - val = count_slashes(prefix); - else { - cp++; - if (!strncmp(cp, prefix, prefix_length)) - val = count_slashes(prefix) + 1; - } - } - free(name); - return val; -} - -/* - * Does the ---/+++ line has the POSIX timestamp after the last HT? - * GNU diff puts epoch there to signal a creation/deletion event. Is - * this such a timestamp? - */ -static int has_epoch_timestamp(const char *nameline) -{ - /* - * We are only interested in epoch timestamp; any non-zero - * fraction cannot be one, hence "(\.0+)?" in the regexp below. - * For the same reason, the date must be either 1969-12-31 or - * 1970-01-01, and the seconds part must be "00". - */ - const char stamp_regexp[] = - "^(1969-12-31|1970-01-01)" - " " - "[0-2][0-9]:[0-5][0-9]:00(\\.0+)?" - " " - "([-+][0-2][0-9]:?[0-5][0-9])\n"; - const char *timestamp = NULL, *cp, *colon; - static regex_t *stamp; - regmatch_t m[10]; - int zoneoffset; - int hourminute; - int status; - - for (cp = nameline; *cp != '\n'; cp++) { - if (*cp == '\t') - timestamp = cp + 1; - } - if (!timestamp) - return 0; - if (!stamp) { - stamp = xmalloc(sizeof(*stamp)); - if (regcomp(stamp, stamp_regexp, REG_EXTENDED)) { - warning(_("Cannot prepare timestamp regexp %s"), - stamp_regexp); - return 0; - } - } - - status = regexec(stamp, timestamp, ARRAY_SIZE(m), m, 0); - if (status) { - if (status != REG_NOMATCH) - warning(_("regexec returned %d for input: %s"), - status, timestamp); - return 0; - } - - zoneoffset = strtol(timestamp + m[3].rm_so + 1, (char **) &colon, 10); - if (*colon == ':') - zoneoffset = zoneoffset * 60 + strtol(colon + 1, NULL, 10); - else - zoneoffset = (zoneoffset / 100) * 60 + (zoneoffset % 100); - if (timestamp[m[3].rm_so] == '-') - zoneoffset = -zoneoffset; - - /* - * YYYY-MM-DD hh:mm:ss must be from either 1969-12-31 - * (west of GMT) or 1970-01-01 (east of GMT) - */ - if ((zoneoffset < 0 && memcmp(timestamp, "1969-12-31", 10)) || - (0 <= zoneoffset && memcmp(timestamp, "1970-01-01", 10))) - return 0; - - hourminute = (strtol(timestamp + 11, NULL, 10) * 60 + - strtol(timestamp + 14, NULL, 10) - - zoneoffset); - - return ((zoneoffset < 0 && hourminute == 1440) || - (0 <= zoneoffset && !hourminute)); -} - -/* - * Get the name etc info from the ---/+++ lines of a traditional patch header - * - * FIXME! The end-of-filename heuristics are kind of screwy. For existing - * files, we can happily check the index for a match, but for creating a - * new file we should try to match whatever "patch" does. I have no idea. - */ -static void parse_traditional_patch(const char *first, const char *second, struct patch *patch) -{ - char *name; - - first += 4; /* skip "--- " */ - second += 4; /* skip "+++ " */ - if (!p_value_known) { - int p, q; - p = guess_p_value(first); - q = guess_p_value(second); - if (p < 0) p = q; - if (0 <= p && p == q) { - p_value = p; - p_value_known = 1; - } - } - if (is_dev_null(first)) { - patch->is_new = 1; - patch->is_delete = 0; - name = find_name_traditional(second, NULL, p_value); - patch->new_name = name; - } else if (is_dev_null(second)) { - patch->is_new = 0; - patch->is_delete = 1; - name = find_name_traditional(first, NULL, p_value); - patch->old_name = name; - } else { - 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; - patch->new_name = name; - } else if (has_epoch_timestamp(second)) { - patch->is_new = 0; - patch->is_delete = 1; - patch->old_name = name; - } else { - patch->old_name = name; - patch->new_name = xstrdup_or_null(name); - } - } - if (!name) - die(_("unable to find filename in patch at line %d"), linenr); -} - -static int gitdiff_hdrend(const char *line, struct patch *patch) -{ - return -1; -} - -/* - * We're anal about diff header consistency, to make - * sure that we don't end up having strange ambiguous - * patches floating around. - * - * As a result, gitdiff_{old|new}name() will check - * their names against any previous information, just - * to make sure.. - */ -#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; - 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); - another = find_name(line, NULL, p_value, TERM_TAB); - if (!another || memcmp(another, 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 { - /* 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); - return NULL; - } -} - -static int gitdiff_oldname(const char *line, struct patch *patch) -{ - char *orig = patch->old_name; - patch->old_name = gitdiff_verify_name(line, patch->is_new, patch->old_name, - DIFF_OLD_NAME); - if (orig != patch->old_name) - free(orig); - return 0; -} - -static int gitdiff_newname(const char *line, struct patch *patch) -{ - char *orig = patch->new_name; - patch->new_name = gitdiff_verify_name(line, patch->is_delete, patch->new_name, - DIFF_NEW_NAME); - if (orig != patch->new_name) - free(orig); - return 0; -} - -static int gitdiff_oldmode(const char *line, struct patch *patch) -{ - patch->old_mode = strtoul(line, NULL, 8); - return 0; -} - -static int gitdiff_newmode(const char *line, struct patch *patch) -{ - patch->new_mode = strtoul(line, NULL, 8); - return 0; -} - -static int gitdiff_delete(const char *line, struct patch *patch) -{ - patch->is_delete = 1; - 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; - 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; -} - -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; -} - -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; -} - -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) -{ - 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) -{ - unsigned long val = strtoul(line, NULL, 10); - if (val <= 100) - patch->score = val; - return 0; -} - -static int gitdiff_index(const char *line, struct patch *patch) -{ - /* - * index line is N hexadecimal, "..", N hexadecimal, - * and optional space with octal mode. - */ - const char *ptr, *eol; - int len; - - ptr = strchr(line, '.'); - if (!ptr || ptr[1] != '.' || 40 < ptr - line) - return 0; - len = ptr - line; - memcpy(patch->old_sha1_prefix, line, len); - patch->old_sha1_prefix[len] = 0; - - line = ptr + 2; - ptr = strchr(line, ' '); - eol = strchrnul(line, '\n'); - - if (!ptr || eol < ptr) - ptr = eol; - len = ptr - line; - - if (40 < len) - return 0; - memcpy(patch->new_sha1_prefix, line, len); - patch->new_sha1_prefix[len] = 0; - if (*ptr == ' ') - patch->old_mode = strtoul(ptr+1, NULL, 8); - return 0; -} - -/* - * This is normal for a diff that doesn't change anything: we'll fall through - * into the next diff. Tell the parser to break out. - */ -static int gitdiff_unrecognized(const char *line, struct patch *patch) -{ - return -1; -} - -/* - * 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; - 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 (i == 0) ? NULL : &line[i + 1]; - } - return NULL; -} - -/* - * This is to extract the same name that appears on "diff --git" - * line. We do not find and return anything if it is a rename - * patch, and it is OK because we will find the name elsewhere. - * We need to reliably find name only when it is mode-change only, - * 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(const char *line, int llen) -{ - const char *name; - const char *second = NULL; - size_t len, line_len; - - line += strlen("diff --git "); - llen -= strlen("diff --git "); - - if (*line == '"') { - const char *cp; - struct strbuf first = STRBUF_INIT; - struct strbuf sp = STRBUF_INIT; - - if (unquote_c_style(&first, line, &second)) - goto free_and_fail1; - - /* 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 - first.buf); - - /* - * second points at one past closing dq of name. - * find the second name. - */ - while ((second < line + llen) && isspace(*second)) - second++; - - if (line + llen <= second) - goto free_and_fail1; - if (*second == '"') { - if (unquote_c_style(&sp, second, NULL)) - goto free_and_fail1; - cp = skip_tree_prefix(sp.buf, sp.len); - if (!cp) - goto free_and_fail1; - /* They must match, otherwise ignore */ - if (strcmp(cp, first.buf)) - goto free_and_fail1; - strbuf_release(&sp); - return strbuf_detach(&first, NULL); - } - - /* unquoted second */ - cp = skip_tree_prefix(second, line + llen - second); - if (!cp) - goto free_and_fail1; - if (line + llen - cp != first.len || - memcmp(first.buf, cp, first.len)) - goto free_and_fail1; - return strbuf_detach(&first, NULL); - - free_and_fail1: - strbuf_release(&first); - strbuf_release(&sp); - return NULL; - } - - /* unquoted first name */ - name = skip_tree_prefix(line, llen); - if (!name) - return NULL; - - /* - * since the first name is unquoted, a dq if exists must be - * the beginning of the second name. - */ - for (second = name; second < line + llen; second++) { - if (*second == '"') { - struct strbuf sp = STRBUF_INIT; - const char *np; - - if (unquote_c_style(&sp, second, NULL)) - goto free_and_fail2; - - np = skip_tree_prefix(sp.buf, sp.len); - if (!np) - goto free_and_fail2; - - len = sp.buf + sp.len - np; - if (len < second - name && - !strncmp(np, name, len) && - isspace(name[len])) { - /* Good */ - strbuf_remove(&sp, 0, np - sp.buf); - return strbuf_detach(&sp, NULL); - } - - free_and_fail2: - strbuf_release(&sp); - return NULL; - } - } - - /* - * Accept a name only if it shows up twice, exactly the same - * form. - */ - second = strchr(name, '\n'); - if (!second) - return NULL; - line_len = second - name; - for (len = 0 ; ; len++) { - switch (name[len]) { - default: - continue; - case '\n': - return NULL; - case '\t': case ' ': - /* - * 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; - /* - * 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(const char *line, int len, unsigned int size, struct patch *patch) -{ - unsigned long offset; - - /* A git diff has explicit new/delete information, so we don't guess */ - patch->is_new = 0; - patch->is_delete = 0; - - /* - * Some things may not have the old name in the - * rest of the headers anywhere (pure mode changes, - * or removing or adding empty files), so we get - * the default name from the header. - */ - patch->def_name = git_header_name(line, len); - if (patch->def_name && root) { - char *s = xstrfmt("%s%s", root, patch->def_name); - free(patch->def_name); - patch->def_name = s; - } - - line += len; - size -= len; - linenr++; - for (offset = len ; size > 0 ; offset += len, size -= len, line += len, linenr++) { - static const struct opentry { - const char *str; - int (*fn)(const char *, struct patch *); - } optable[] = { - { "@@ -", gitdiff_hdrend }, - { "--- ", gitdiff_oldname }, - { "+++ ", gitdiff_newname }, - { "old mode ", gitdiff_oldmode }, - { "new mode ", gitdiff_newmode }, - { "deleted file mode ", gitdiff_delete }, - { "new file mode ", gitdiff_newfile }, - { "copy from ", gitdiff_copysrc }, - { "copy to ", gitdiff_copydst }, - { "rename old ", gitdiff_renamesrc }, - { "rename new ", gitdiff_renamedst }, - { "rename from ", gitdiff_renamesrc }, - { "rename to ", gitdiff_renamedst }, - { "similarity index ", gitdiff_similarity }, - { "dissimilarity index ", gitdiff_dissimilarity }, - { "index ", gitdiff_index }, - { "", gitdiff_unrecognized }, - }; - int i; - - len = linelen(line, size); - if (!len || line[len-1] != '\n') - break; - for (i = 0; i < ARRAY_SIZE(optable); i++) { - const struct opentry *p = optable + i; - int oplen = strlen(p->str); - if (len < oplen || memcmp(p->str, line, oplen)) - continue; - if (p->fn(line + oplen, patch) < 0) - return offset; - break; - } - } - - return offset; -} - -static int parse_num(const char *line, unsigned long *p) -{ - char *ptr; - - if (!isdigit(*line)) - return 0; - *p = strtoul(line, &ptr, 10); - return ptr - line; -} - -static int parse_range(const char *line, int len, int offset, const char *expect, - unsigned long *p1, unsigned long *p2) -{ - int digits, ex; - - if (offset < 0 || offset >= len) - return -1; - line += offset; - len -= offset; - - digits = parse_num(line, p1); - if (!digits) - return -1; - - offset += digits; - line += digits; - len -= digits; - - *p2 = 1; - if (*line == ',') { - digits = parse_num(line+1, p2); - if (!digits) - return -1; - - offset += digits+1; - line += digits+1; - len -= digits+1; - } - - ex = strlen(expect); - if (ex > len) - return -1; - if (memcmp(line, expect, ex)) - return -1; - - return offset + ex; -} - -static void recount_diff(const char *line, int size, struct fragment *fragment) -{ - int oldlines = 0, newlines = 0, ret = 0; - - if (size < 1) { - warning("recount: ignore empty hunk"); - return; - } - - for (;;) { - int len = linelen(line, size); - size -= len; - line += len; - - if (size < 1) - break; - - switch (*line) { - case ' ': case '\n': - newlines++; - /* fall through */ - case '-': - oldlines++; - continue; - case '+': - newlines++; - continue; - case '\\': - continue; - case '@': - ret = size < 3 || !starts_with(line, "@@ "); - break; - case 'd': - ret = size < 5 || !starts_with(line, "diff "); - break; - default: - ret = -1; - break; - } - if (ret) { - warning(_("recount: unexpected line: %.*s"), - (int)linelen(line, size), line); - return; - } - break; - } - fragment->oldlines = oldlines; - fragment->newlines = newlines; -} - -/* - * Parse a unified diff fragment header of the - * form "@@ -a,b +c,d @@" - */ -static int parse_fragment_header(const char *line, int len, struct fragment *fragment) -{ - int offset; - - if (!len || line[len-1] != '\n') - return -1; - - /* Figure out the number of lines in a fragment */ - offset = parse_range(line, len, 4, " +", &fragment->oldpos, &fragment->oldlines); - offset = parse_range(line, len, offset, " @@", &fragment->newpos, &fragment->newlines); - - return offset; -} - -static int find_header(const char *line, unsigned long size, int *hdrsize, struct patch *patch) -{ - unsigned long offset, len; - - patch->is_toplevel_relative = 0; - patch->is_rename = patch->is_copy = 0; - patch->is_new = patch->is_delete = -1; - patch->old_mode = patch->new_mode = 0; - patch->old_name = patch->new_name = NULL; - for (offset = 0; size > 0; offset += len, size -= len, line += len, linenr++) { - unsigned long nextlen; - - len = linelen(line, size); - if (!len) - break; - - /* Testing this early allows us to take a few shortcuts.. */ - if (len < 6) - continue; - - /* - * Make sure we don't find any unconnected patch fragments. - * That's a sign that we didn't find a header, and that a - * patch has become corrupted/broken up. - */ - if (!memcmp("@@ -", line, 4)) { - struct fragment dummy; - if (parse_fragment_header(line, len, &dummy) < 0) - continue; - die(_("patch fragment without header at line %d: %.*s"), - linenr, (int)len-1, line); - } - - if (size < len + 6) - break; - - /* - * Git patch? It might not have a real patch, just a rename - * or mode change, so we handle that specially - */ - if (!memcmp("diff --git ", line, 11)) { - int git_hdr_len = parse_git_header(line, len, size, patch); - if (git_hdr_len <= len) - continue; - if (!patch->old_name && !patch->new_name) { - if (!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 " - "(line %d)", linenr); - patch->is_toplevel_relative = 1; - *hdrsize = git_hdr_len; - return offset; - } - - /* --- followed by +++ ? */ - if (memcmp("--- ", line, 4) || memcmp("+++ ", line + len, 4)) - continue; - - /* - * We only accept unified patches, so we want it to - * at least have "@@ -a,b +c,d @@\n", which is 14 chars - * minimum ("@@ -0,0 +1 @@\n" is the shortest). - */ - nextlen = linelen(line + len, size - len); - if (size < nextlen + 14 || memcmp("@@ -", line + len + nextlen, 4)) - continue; - - /* Ok, we'll consider it a patch */ - parse_traditional_patch(line, line+len, patch); - *hdrsize = len + nextlen; - linenr += 2; - return offset; - } - return -1; -} - -static void record_ws_error(unsigned result, const char *line, int len, int linenr) -{ - char *err; - - if (!result) - return; - - whitespace_error++; - if (squelch_whitespace_errors && - squelch_whitespace_errors < whitespace_error) - return; - - err = whitespace_error_string(result); - fprintf(stderr, "%s:%d: %s.\n%.*s\n", - patch_input_file, linenr, err, len, line); - free(err); -} - -static void check_whitespace(const char *line, int len, unsigned ws_rule) -{ - unsigned result = ws_check(line + 1, len - 1, ws_rule); - - record_ws_error(result, line + 1, len - 2, linenr); -} - -/* - * Parse a unified diff. Note that this really needs to parse each - * fragment separately, since the only way to know the difference - * 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(const char *line, unsigned long size, - struct patch *patch, struct fragment *fragment) -{ - int added, deleted; - int len = linelen(line, size), offset; - unsigned long oldlines, newlines; - unsigned long leading, trailing; - - offset = parse_fragment_header(line, len, fragment); - if (offset < 0) - return -1; - if (offset > 0 && patch->recount) - recount_diff(line + offset, size - offset, fragment); - oldlines = fragment->oldlines; - newlines = fragment->newlines; - leading = 0; - trailing = 0; - - /* Parse the thing.. */ - line += len; - size -= len; - linenr++; - added = deleted = 0; - for (offset = len; - 0 < size; - offset += len, size -= len, line += len, linenr++) { - if (!oldlines && !newlines) - break; - len = linelen(line, size); - if (!len || line[len-1] != '\n') - return -1; - switch (*line) { - default: - return -1; - case '\n': /* newer GNU diff, an empty context line */ - case ' ': - oldlines--; - newlines--; - 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 && - ws_error_action != nowarn_ws_error) - check_whitespace(line, len, patch->ws_rule); - deleted++; - oldlines--; - trailing = 0; - break; - case '+': - if (!apply_in_reverse && - ws_error_action != nowarn_ws_error) - check_whitespace(line, len, patch->ws_rule); - added++; - newlines--; - trailing = 0; - break; - - /* - * We allow "\ No newline at end of file". Depending - * on locale settings when the patch was produced we - * don't know what this line looks like. The only - * thing we do know is that it begins with "\ ". - * Checking for 12 is just for sanity check -- any - * l10n of "\ No newline..." is at least that long. - */ - case '\\': - if (len < 12 || memcmp(line, "\\ ", 2)) - return -1; - break; - } - } - if (oldlines || newlines) - return -1; - fragment->leading = leading; - fragment->trailing = trailing; - - /* - * If a fragment ends with an incomplete line, we failed to include - * it in the above loop because we hit oldlines == newlines == 0 - * before seeing it. - */ - if (12 < size && !memcmp(line, "\\ ", 2)) - offset += linelen(line, size); - - patch->lines_added += added; - patch->lines_deleted += deleted; - - if (0 < patch->is_new && oldlines) - return error(_("new file depends on old contents")); - if (0 < patch->is_delete && newlines) - return error(_("deleted file still has contents")); - return offset; -} - -/* - * 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; - struct fragment **fragp = &patch->fragments; - - while (size > 4 && !memcmp(line, "@@ -", 4)) { - struct fragment *fragment; - int len; - - fragment = xcalloc(1, sizeof(*fragment)); - fragment->linenr = linenr; - len = parse_fragment(line, size, patch, fragment); - if (len <= 0) - die(_("corrupt patch at line %d"), linenr); - fragment->patch = line; - fragment->size = len; - oldlines += fragment->oldlines; - newlines += fragment->newlines; - context += fragment->leading + fragment->trailing; - - *fragp = fragment; - fragp = &fragment->next; - - offset += len; - line += len; - size -= len; - } - - /* - * If something was removed (i.e. we have old-lines) it cannot - * be creation, and if something was added it cannot be - * deletion. However, the reverse is not true; --unified=0 - * patches that only add are not necessarily creation even - * though they do not have any old lines, and ones that only - * delete are not necessarily deletion. - * - * Unfortunately, a real creation/deletion patch do _not_ have - * any context line by definition, so we cannot safely tell it - * apart with --unified=0 insanity. At least if the patch has - * more than one hunk it is not creation or deletion. - */ - if (patch->is_new < 0 && - (oldlines || (patch->fragments && patch->fragments->next))) - patch->is_new = 0; - if (patch->is_delete < 0 && - (newlines || (patch->fragments && patch->fragments->next))) - patch->is_delete = 0; - - if (0 < patch->is_new && oldlines) - 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); - if (!patch->is_delete && !newlines && context) - fprintf_ln(stderr, - _("** warning: " - "file %s becomes empty but is not deleted"), - patch->new_name); - - return offset; -} - -static inline int metadata_changes(struct patch *patch) -{ - return patch->is_rename > 0 || - patch->is_copy > 0 || - patch->is_new > 0 || - patch->is_delete || - (patch->old_mode && patch->new_mode && - patch->old_mode != patch->new_mode); -} - -static char *inflate_it(const void *data, unsigned long size, - unsigned long inflated_size) -{ - git_zstream stream; - void *out; - int st; - - memset(&stream, 0, sizeof(stream)); - - stream.next_in = (unsigned char *)data; - stream.avail_in = size; - stream.next_out = out = xmalloc(inflated_size); - stream.avail_out = inflated_size; - git_inflate_init(&stream); - st = git_inflate(&stream, Z_FINISH); - git_inflate_end(&stream); - if ((st != Z_STREAM_END) || stream.total_out != inflated_size) { - free(out); - return NULL; - } - 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, - int *used_p) -{ - /* - * Expect a line that begins with binary patch method ("literal" - * or "delta"), followed by the length of data before deflating. - * a sequence of 'length-byte' followed by base-85 encoded data - * should follow, terminated by a newline. - * - * Each 5-byte sequence of base-85 encodes up to 4 bytes, - * and we would limit the patch line to 66 characters, - * so one line can fit up to 13 groups that would decode - * to 52 bytes max. The length byte 'A'-'Z' corresponds - * to 1-26 bytes, and 'a'-'z' corresponds to 27-52 bytes. - */ - int llen, used; - unsigned long size = *sz_p; - char *buffer = *buf_p; - int patch_method; - unsigned long origlen; - char *data = NULL; - int hunk_size = 0; - struct fragment *frag; - - llen = linelen(buffer, size); - used = llen; - - *status_p = 0; - - if (starts_with(buffer, "delta ")) { - patch_method = BINARY_DELTA_DEFLATED; - origlen = strtoul(buffer + 6, NULL, 10); - } - else if (starts_with(buffer, "literal ")) { - patch_method = BINARY_LITERAL_DEFLATED; - origlen = strtoul(buffer + 8, NULL, 10); - } - else - return NULL; - - linenr++; - buffer += llen; - while (1) { - int byte_length, max_byte_length, newsize; - llen = linelen(buffer, size); - used += llen; - linenr++; - if (llen == 1) { - /* consume the blank line */ - buffer++; - size--; - break; - } - /* - * Minimum line is "A00000\n" which is 7-byte long, - * and the line length must be multiple of 5 plus 2. - */ - if ((llen < 7) || (llen-2) % 5) - goto corrupt; - max_byte_length = (llen - 2) / 5 * 4; - byte_length = *buffer; - if ('A' <= byte_length && byte_length <= 'Z') - byte_length = byte_length - 'A' + 1; - else if ('a' <= byte_length && byte_length <= 'z') - byte_length = byte_length - 'a' + 27; - else - goto corrupt; - /* if the input length was not multiple of 4, we would - * have filler at the end but the filler should never - * exceed 3 bytes - */ - if (max_byte_length < byte_length || - byte_length <= max_byte_length - 4) - goto corrupt; - newsize = hunk_size + byte_length; - data = xrealloc(data, newsize); - if (decode_85(data + hunk_size, buffer + 1, byte_length)) - goto corrupt; - hunk_size = newsize; - buffer += llen; - size -= llen; - } - - frag = xcalloc(1, sizeof(*frag)); - frag->patch = inflate_it(data, hunk_size, origlen); - frag->free_patch = 1; - if (!frag->patch) - goto corrupt; - free(data); - frag->size = origlen; - *buf_p = buffer; - *sz_p = size; - *used_p = used; - frag->binary_patch_method = patch_method; - return frag; - - corrupt: - free(data); - *status_p = -1; - error(_("corrupt binary patch at line %d: %.*s"), - linenr-1, llen-1, buffer); - return NULL; -} - -static int parse_binary(char *buffer, unsigned long size, struct patch *patch) -{ - /* - * We have read "GIT binary patch\n"; what follows is a line - * that says the patch method (currently, either "literal" or - * "delta") and the length of data before deflating; a - * sequence of 'length-byte' followed by base-85 encoded data - * follows. - * - * When a binary patch is reversible, there is another binary - * hunk in the same format, starting with patch method (either - * "literal" or "delta") with the length of data, and a sequence - * of length-byte + base-85 encoded data, terminated with another - * empty line. This data, when applied to the postimage, produces - * the preimage. - */ - struct fragment *forward; - struct fragment *reverse; - int status; - int used, used_1; - - 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); - if (status) - /* otherwise we already gave an error message */ - return status; - - reverse = parse_binary_hunk(&buffer, &size, &status, &used_1); - if (reverse) - used += used_1; - else if (status) { - /* - * Not having reverse hunk is not an error, but having - * a corrupt reverse hunk is. - */ - free((void*) forward->patch); - free(forward); - return status; - } - forward->next = reverse; - patch->fragments = forward; - patch->is_binary = 1; - 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; - int offset = find_header(buffer, size, &hdrsize, patch); - - if (offset < 0) - return offset; - - 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 git_binary[] = "GIT binary patch\n"; - int hd = hdrsize + offset; - unsigned long llen = linelen(buffer + hd, size - hd); - - if (llen == sizeof(git_binary) - 1 && - !memcmp(git_binary, buffer + hd, llen)) { - int used; - linenr++; - used = parse_binary(buffer + hd + llen, - size - hd - llen, patch); - 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 && - !memcmp(binhdr[i], buffer + hd, len)) { - linenr++; - patch->is_binary = 1; - patchsize = llen; - break; - } - } - } - - /* Empty patch cannot be applied if it is a text patch - * without metadata change. A binary patch appears - * empty to us here. - */ - if ((apply || check) && - (!patch->is_binary && !metadata_changes(patch))) - die(_("patch with only garbage at line %d"), linenr); - } - - return offset + hdrsize + patchsize; -} - -#define swap(a,b) myswap((a),(b),sizeof(a)) - -#define myswap(a, b, size) do { \ - unsigned char mytmp[size]; \ - memcpy(mytmp, &a, size); \ - memcpy(&a, &b, size); \ - memcpy(&b, mytmp, size); \ -} while (0) - -static void reverse_patches(struct patch *p) -{ - for (; p; p = p->next) { - struct fragment *frag = p->fragments; - - swap(p->new_name, p->old_name); - swap(p->new_mode, p->old_mode); - swap(p->is_new, p->is_delete); - swap(p->lines_added, p->lines_deleted); - swap(p->old_sha1_prefix, p->new_sha1_prefix); - - for (; frag; frag = frag->next) { - swap(frag->newpos, frag->oldpos); - swap(frag->newlines, frag->oldlines); - } - } -} - -static const char pluses[] = -"++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"; -static const char minuses[]= -"----------------------------------------------------------------------"; - -static void show_stats(struct patch *patch) -{ - struct strbuf qname = STRBUF_INIT; - char *cp = patch->new_name ? patch->new_name : patch->old_name; - int max, add, del; - - quote_c_style(cp, &qname, NULL, 0); - - /* - * "scale" the filename - */ - max = max_len; - if (max > 50) - max = 50; - - if (qname.len > max) { - cp = strchr(qname.buf + qname.len + 3 - max, '/'); - if (!cp) - cp = qname.buf + qname.len + 3 - max; - strbuf_splice(&qname, 0, cp - qname.buf, "...", 3); - } - - if (patch->is_binary) { - printf(" %-*s | Bin\n", max, qname.buf); - strbuf_release(&qname); - return; - } - - printf(" %-*s |", max, qname.buf); - strbuf_release(&qname); - - /* - * scale the add/delete - */ - max = max + max_change > 70 ? 70 - max : max_change; - add = patch->lines_added; - del = patch->lines_deleted; - - if (max_change > 0) { - int total = ((add + del) * max + max_change / 2) / max_change; - add = (add * max + max_change / 2) / max_change; - del = total - add; - } - printf("%5d %.*s%.*s\n", patch->lines_added + patch->lines_deleted, - add, pluses, del, minuses); -} - -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 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); - convert_to_git(path, buf->buf, buf->len, buf, 0); - return 0; - default: - return -1; - } -} - -/* - * Update the preimage, and the common lines in postimage, - * from buffer buf of length len. If postlen is 0 the postimage - * is updated in place, otherwise it's updated on a new buffer - * of length postlen - */ - -static void update_pre_post_images(struct image *preimage, - struct image *postimage, - char *buf, - size_t len, size_t postlen) -{ - int i, ctx, reduced; - char *new, *old, *fixed; - struct image fixed_preimage; - - /* - * Update the preimage with whitespace fixes. Note that we - * are not losing preimage->buf -- apply_one_fragment() will - * free "oldlines". - */ - prepare_image(&fixed_preimage, buf, len, 1); - 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 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. - */ - old = postimage->buf; - if (postlen) - new = postimage->buf = xmalloc(postlen); - else - new = old; - fixed = preimage->buf; - - 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 */ - memmove(new, old, len); - old += len; - new += len; - continue; - } - - /* a common context -- skip it in the original postimage */ - old += len; - - /* and find the corresponding one in the fixed preimage */ - while (ctx < preimage->nr && - !(preimage->line[ctx].flag & LINE_COMMON)) { - fixed += preimage->line[ctx].len; - ctx++; - } - - /* - * 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; - memcpy(new, fixed, len); - new += len; - fixed += len; - postimage->line[i].len = len; - 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, - struct image *preimage, - struct image *postimage, - unsigned long try, - int try_lno, - unsigned ws_rule, - int match_beginning, int match_end) -{ - int i; - char *fixed_buf, *buf, *orig, *target; - struct strbuf fixed; - size_t fixed_len, postlen; - int preimage_limit; - - if (preimage->nr + try_lno <= img->nr) { - /* - * The hunk falls within the boundaries of img. - */ - preimage_limit = preimage->nr; - if (match_end && (preimage->nr + try_lno != img->nr)) - return 0; - } else if (ws_error_action == correct_ws_error && - (ws_rule & WS_BLANK_AT_EOF)) { - /* - * This hunk extends beyond the end of img, and we are - * removing blank lines at the end of the file. This - * many lines from the beginning of the preimage must - * match with img, and the remainder of the preimage - * must be blank. - */ - preimage_limit = img->nr - try_lno; - } else { - /* - * The hunk extends beyond the end of the img and - * we are not removing blanks at the end, so we - * should reject the hunk at this position. - */ - return 0; - } - - if (match_beginning && try_lno) - return 0; - - /* Quick hash check */ - for (i = 0; i < preimage_limit; i++) - if ((img->line[try_lno + i].flag & LINE_PATCHED) || - (preimage->line[i].hash != img->line[try_lno + i].hash)) - return 0; - - if (preimage_limit == preimage->nr) { - /* - * Do we have an exact match? If we were told to match - * at the end, size must be exactly at try+fragsize, - * otherwise try+fragsize must be still within the preimage, - * and either case, the old piece should match the preimage - * exactly. - */ - if ((match_end - ? (try + preimage->len == img->len) - : (try + preimage->len <= img->len)) && - !memcmp(img->buf + try, preimage->buf, preimage->len)) - return 1; - } else { - /* - * The preimage extends beyond the end of img, so - * there cannot be an exact match. - * - * There must be one non-blank context line that match - * a line before the end of img. - */ - char *buf_end; - - buf = preimage->buf; - buf_end = buf; - for (i = 0; i < preimage_limit; i++) - buf_end += preimage->line[i].len; - - for ( ; buf < buf_end; buf++) - if (!isspace(*buf)) - break; - if (buf == buf_end) - return 0; - } - - /* - * No exact match. If we are ignoring whitespace, run a line-by-line - * fuzzy matching. We collect all the line length information because - * we need it to adjust whitespace if we match. - */ - if (ws_ignore_action == ignore_ws_change) { - size_t imgoff = 0; - size_t preoff = 0; - size_t postlen = postimage->len; - size_t extra_chars; - char *preimage_eof; - char *preimage_end; - for (i = 0; i < preimage_limit; i++) { - size_t prelen = preimage->line[i].len; - size_t imglen = img->line[try_lno+i].len; - - if (!fuzzy_matchlines(img->buf + try + imgoff, imglen, - preimage->buf + preoff, prelen)) - return 0; - if (preimage->line[i].flag & LINE_COMMON) - postlen += imglen - prelen; - imgoff += imglen; - preoff += prelen; - } - - /* - * Ok, the preimage matches with whitespace fuzz. - * - * imgoff now holds the true length of the target that - * matches the preimage before the end of the file. - * - * Count the number of characters in the preimage that fall - * beyond the end of the file and make sure that all of them - * are whitespace characters. (This can only happen if - * we are removing blank lines at the end of the file.) - */ - buf = preimage_eof = preimage->buf + preoff; - for ( ; i < preimage->nr; i++) - preoff += preimage->line[i].len; - preimage_end = preimage->buf + preoff; - for ( ; buf < preimage_end; buf++) - if (!isspace(*buf)) - return 0; - - /* - * Update the preimage and the common postimage context - * lines to use the same whitespace as the target. - * If whitespace is missing in the target (i.e. - * if the preimage extends beyond the end of the file), - * use the whitespace from the preimage. - */ - extra_chars = preimage_end - preimage_eof; - strbuf_init(&fixed, imgoff + extra_chars); - strbuf_add(&fixed, img->buf + try, imgoff); - strbuf_add(&fixed, preimage_eof, extra_chars); - fixed_buf = strbuf_detach(&fixed, &fixed_len); - update_pre_post_images(preimage, postimage, - fixed_buf, fixed_len, postlen); - return 1; - } - - if (ws_error_action != correct_ws_error) - return 0; - - /* - * The hunk does not apply byte-by-byte, but the hash says - * 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. - */ - strbuf_init(&fixed, preimage->len + 1); - orig = preimage->buf; - target = img->buf + try; - for (i = 0; i < preimage_limit; i++) { - size_t oldlen = preimage->line[i].len; - size_t tgtlen = img->line[try_lno + i].len; - size_t fixstart = fixed.len; - struct strbuf tgtfix; - int match; - - /* Try fixing the line in the preimage */ - ws_fix_copy(&fixed, orig, oldlen, ws_rule, NULL); - - /* Try fixing the line in the target */ - strbuf_init(&tgtfix, tgtlen); - ws_fix_copy(&tgtfix, target, tgtlen, ws_rule, NULL); - - /* - * If they match, either the preimage was based on - * a version before our tree fixed whitespace breakage, - * or we are lacking a whitespace-fix patch the tree - * the preimage was based on already had (i.e. target - * has whitespace breakage, the preimage doesn't). - * In either case, we are fixing the whitespace breakages - * so we might as well take the fix together with their - * real change. - */ - match = (tgtfix.len == fixed.len - fixstart && - !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; - - orig += oldlen; - target += tgtlen; - } - - - /* - * Now handle the lines in the preimage that falls beyond the - * end of the file (if any). They will only match if they are - * empty or only contain whitespace (if WS_BLANK_AT_EOL is - * false). - */ - for ( ; i < preimage->nr; i++) { - size_t fixstart = fixed.len; /* start of the fixed preimage */ - size_t oldlen = preimage->line[i].len; - int j; - - /* Try fixing the line in the preimage */ - ws_fix_copy(&fixed, orig, oldlen, ws_rule, NULL); - - for (j = fixstart; j < fixed.len; j++) - if (!isspace(fixed.buf[j])) - goto unmatch_exit; - - orig += oldlen; - } - - /* - * Yes, the preimage is based on an older version that still - * has whitespace breakages unfixed, and fixing them makes the - * 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, postlen); - return 1; - - unmatch_exit: - strbuf_release(&fixed); - return 0; -} - -static int find_pos(struct image *img, - struct image *preimage, - struct image *postimage, - int line, - unsigned ws_rule, - int match_beginning, int match_end) -{ - int i; - unsigned long backwards, forwards, try; - int backwards_lno, forwards_lno, try_lno; - - /* - * If match_beginning or match_end is specified, there is no - * point starting from a wrong line that will never match and - * wander around and wait for a match at the specified end. - */ - if (match_beginning) - line = 0; - else if (match_end) - line = img->nr - preimage->nr; - - /* - * Because the comparison is unsigned, the following test - * will also take care of a negative line number that can - * result when match_end and preimage is larger than the target. - */ - if ((size_t) line > img->nr) - line = img->nr; - - try = 0; - for (i = 0; i < line; i++) - try += img->line[i].len; - - /* - * There's probably some smart way to do this, but I'll leave - * that to the smart and beautiful people. I'm simple and stupid. - */ - backwards = try; - backwards_lno = line; - forwards = try; - forwards_lno = line; - try_lno = line; - - for (i = 0; ; i++) { - if (match_fragment(img, preimage, postimage, - try, try_lno, ws_rule, - match_beginning, match_end)) - return try_lno; - - again: - if (backwards_lno == 0 && forwards_lno == img->nr) - break; - - if (i & 1) { - if (backwards_lno == 0) { - i++; - goto again; - } - backwards_lno--; - backwards -= img->line[backwards_lno].len; - try = backwards; - try_lno = backwards_lno; - } else { - if (forwards_lno == img->nr) { - i++; - goto again; - } - forwards += img->line[forwards_lno].len; - forwards_lno++; - try = forwards; - try_lno = forwards_lno; - } - - } - return -1; -} - -static void remove_first_line(struct image *img) -{ - img->buf += img->line[0].len; - img->len -= img->line[0].len; - img->line++; - img->nr--; -} - -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, - struct image *postimage) -{ - /* - * remove the copy of preimage at offset in img - * and replace it with postimage - */ - int i, nr; - size_t remove_count, insert_count, applied_at = 0; - char *result; - int preimage_limit; - - /* - * If we are removing blank lines at the end of img, - * the preimage may extend beyond the end. - * If that is the case, we must be careful only to - * remove the part of the preimage that falls within - * the boundaries of img. Initialize preimage_limit - * to the number of lines in the preimage that falls - * within the boundaries. - */ - preimage_limit = preimage->nr; - if (preimage_limit > img->nr - applied_pos) - preimage_limit = img->nr - applied_pos; - - for (i = 0; i < applied_pos; i++) - applied_at += img->line[i].len; - - remove_count = 0; - for (i = 0; i < preimage_limit; i++) - remove_count += img->line[applied_pos + i].len; - insert_count = postimage->len; - - /* Adjust the contents */ - result = xmalloc(img->len + insert_count - remove_count + 1); - memcpy(result, img->buf, applied_at); - memcpy(result + applied_at, postimage->buf, postimage->len); - memcpy(result + applied_at + postimage->len, - img->buf + (applied_at + remove_count), - img->len - (applied_at + remove_count)); - free(img->buf); - img->buf = result; - img->len += insert_count - remove_count; - result[img->len] = '\0'; - - /* Adjust the line table */ - nr = img->nr + postimage->nr - preimage_limit; - if (preimage_limit < postimage->nr) { - /* - * NOTE: this knows that we never call remove_first_line() - * on anything other than pre/post image. - */ - REALLOC_ARRAY(img->line, nr); - img->line_allocated = img->line; - } - if (preimage_limit != postimage->nr) - memmove(img->line + applied_pos + postimage->nr, - img->line + applied_pos + preimage_limit, - (img->nr - (applied_pos + preimage_limit)) * - sizeof(*img->line)); - memcpy(img->line + applied_pos, - postimage->line, - postimage->nr * sizeof(*img->line)); - if (!allow_overlap) - for (i = 0; i < postimage->nr; i++) - img->line[applied_pos + i].flag |= LINE_PATCHED; - 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) -{ - int match_beginning, match_end; - const char *patch = frag->patch; - int size = frag->size; - char *old, *oldlines; - struct strbuf newlines; - int new_blank_lines_at_end = 0; - int found_new_blank_lines_at_end = 0; - int hunk_linenr = frag->linenr; - unsigned long leading, trailing; - int pos, applied_pos; - struct image preimage; - struct image postimage; - - memset(&preimage, 0, sizeof(preimage)); - memset(&postimage, 0, sizeof(postimage)); - oldlines = xmalloc(size); - strbuf_init(&newlines, size); - - old = oldlines; - while (size > 0) { - char first; - int len = linelen(patch, size); - int plen; - int added_blank_line = 0; - int is_blank_context = 0; - size_t start; - - if (!len) - break; - - /* - * "plen" is how much of the line we should use for - * the actual patch data. Normally we just remove the - * first character on the line, but if the line is - * followed by "\ No newline", then we also remove the - * last one (which is the newline, of course). - */ - plen = len - 1; - if (len < size && patch[len] == '\\') - plen--; - first = *patch; - if (apply_in_reverse) { - if (first == '-') - first = '+'; - else if (first == '+') - first = '-'; - } - - switch (first) { - case '\n': - /* Newer GNU diff, empty context line */ - if (plen < 0) - /* ... followed by '\No newline'; nothing */ - break; - *old++ = '\n'; - strbuf_addch(&newlines, '\n'); - add_line_info(&preimage, "\n", 1, LINE_COMMON); - add_line_info(&postimage, "\n", 1, LINE_COMMON); - is_blank_context = 1; - break; - case ' ': - if (plen && (ws_rule & WS_BLANK_AT_EOF) && - ws_blank_line(patch + 1, plen, ws_rule)) - is_blank_context = 1; - case '-': - memcpy(old, patch + 1, plen); - add_line_info(&preimage, old, plen, - (first == ' ' ? LINE_COMMON : 0)); - old += plen; - if (first == '-') - break; - /* Fall-through for ' ' */ - case '+': - /* --no-add does not add new lines */ - if (first == '+' && no_add) - break; - - start = newlines.len; - if (first != '+' || - !whitespace_error || - ws_error_action != correct_ws_error) { - strbuf_add(&newlines, patch + 1, plen); - } - else { - ws_fix_copy(&newlines, patch + 1, plen, ws_rule, &applied_after_fixing_ws); - } - add_line_info(&postimage, newlines.buf + start, newlines.len - start, - (first == '+' ? 0 : LINE_COMMON)); - if (first == '+' && - (ws_rule & WS_BLANK_AT_EOF) && - ws_blank_line(patch + 1, plen, ws_rule)) - added_blank_line = 1; - break; - case '@': case '\\': - /* Ignore it, we already handled it */ - break; - default: - if (apply_verbosely) - error(_("invalid start of line: '%c'"), first); - applied_pos = -1; - goto out; - } - if (added_blank_line) { - if (!new_blank_lines_at_end) - found_new_blank_lines_at_end = hunk_linenr; - new_blank_lines_at_end++; - } - else if (is_blank_context) - ; - else - new_blank_lines_at_end = 0; - patch += len; - size -= len; - hunk_linenr++; - } - if (inaccurate_eof && - old > oldlines && old[-1] == '\n' && - newlines.len > 0 && newlines.buf[newlines.len - 1] == '\n') { - old--; - strbuf_setlen(&newlines, newlines.len - 1); - } - - leading = frag->leading; - trailing = frag->trailing; - - /* - * A hunk to change lines at the beginning would begin with - * @@ -1,L +N,M @@ - * but we need to be careful. -U0 that inserts before the second - * line also has this pattern. - * - * And a hunk to add to an empty file would begin with - * @@ -0,0 +N,M @@ - * - * In other words, a hunk that is (frag->oldpos <= 1) with or - * without leading context must match at the beginning. - */ - match_beginning = (!frag->oldpos || - (frag->oldpos == 1 && !unidiff_zero)); - - /* - * A hunk without trailing lines must match at the end. - * However, we simply cannot tell if a hunk must match end - * from the lack of trailing lines if the patch was generated - * with unidiff without any context. - */ - match_end = !unidiff_zero && !trailing; - - pos = frag->newpos ? (frag->newpos - 1) : 0; - preimage.buf = oldlines; - preimage.len = old - oldlines; - postimage.buf = newlines.buf; - postimage.len = newlines.len; - preimage.line = preimage.line_allocated; - postimage.line = postimage.line_allocated; - - for (;;) { - - applied_pos = find_pos(img, &preimage, &postimage, pos, - ws_rule, match_beginning, match_end); - - if (applied_pos >= 0) - break; - - /* Am I at my context limits? */ - if ((leading <= p_context) && (trailing <= p_context)) - break; - if (match_beginning || match_end) { - match_beginning = match_end = 0; - continue; - } - - /* - * Reduce the number of context lines; reduce both - * leading and trailing if they are equal otherwise - * just reduce the larger context. - */ - if (leading >= trailing) { - remove_first_line(&preimage); - remove_first_line(&postimage); - pos--; - leading--; - } - if (trailing > leading) { - remove_last_line(&preimage); - remove_last_line(&postimage); - trailing--; - } - } - - if (applied_pos >= 0) { - if (new_blank_lines_at_end && - preimage.nr + applied_pos >= img->nr && - (ws_rule & WS_BLANK_AT_EOF) && - ws_error_action != nowarn_ws_error) { - record_ws_error(WS_BLANK_AT_EOF, "+", 1, - found_new_blank_lines_at_end); - if (ws_error_action == correct_ws_error) { - while (new_blank_lines_at_end--) - remove_last_line(&postimage); - } - /* - * We would want to prevent write_out_results() - * from taking place in apply_patch() that follows - * the callchain led us here, which is: - * apply_patch->check_patch_list->check_patch-> - * apply_data->apply_fragments->apply_one_fragment - */ - if (ws_error_action == die_on_ws_error) - apply = 0; - } - - if (apply_verbosely && applied_pos != pos) { - int offset = applied_pos - pos; - if (apply_in_reverse) - offset = 0 - 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); - } - - /* - * Warn if it was necessary to reduce the number - * of context lines. - */ - if ((leading != frag->leading) || - (trailing != frag->trailing)) - 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"), - (int)(old - oldlines), oldlines); - } - -out: - free(oldlines); - strbuf_release(&newlines); - free(preimage.line_allocated); - free(postimage.line_allocated); - - return (applied_pos < 0); -} - -static int apply_binary_fragment(struct image *img, struct patch *patch) -{ - struct fragment *fragment = patch->fragments; - unsigned long len; - void *dst; - - if (!fragment) - return error(_("missing binary patch data for '%s'"), - patch->new_name ? - patch->new_name : - patch->old_name); - - /* Binary patch is irreversible without the optional second hunk */ - if (apply_in_reverse) { - if (!fragment->next) - return error("cannot reverse-apply a binary patch " - "without the reverse hunk to '%s'", - patch->new_name - ? patch->new_name : patch->old_name); - fragment = fragment->next; - } - switch (fragment->binary_patch_method) { - case BINARY_DELTA_DEFLATED: - dst = patch_delta(img->buf, img->len, fragment->patch, - fragment->size, &len); - if (!dst) - return -1; - clear_image(img); - img->buf = dst; - img->len = len; - return 0; - case BINARY_LITERAL_DEFLATED: - clear_image(img); - img->len = fragment->size; - 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; - unsigned char sha1[20]; - - /* - * For safety, we require patch index line to contain - * full 40-byte textual SHA1 for old and new, at least for now. - */ - if (strlen(patch->old_sha1_prefix) != 40 || - strlen(patch->new_sha1_prefix) != 40 || - get_sha1_hex(patch->old_sha1_prefix, sha1) || - get_sha1_hex(patch->new_sha1_prefix, sha1)) - return error("cannot apply binary patch to '%s' " - "without full index line", name); - - if (patch->old_name) { - /* - * See if the old one matches what the patch - * applies to. - */ - hash_sha1_file(img->buf, img->len, blob_type, sha1); - if (strcmp(sha1_to_hex(sha1), patch->old_sha1_prefix)) - return error("the patch applies to '%s' (%s), " - "which does not match the " - "current contents.", - name, sha1_to_hex(sha1)); - } - else { - /* Otherwise, the old one must be empty. */ - if (img->len) - return error("the patch applies to an empty " - "'%s' but it is not empty", name); - } - - get_sha1_hex(patch->new_sha1_prefix, sha1); - if (is_null_sha1(sha1)) { - clear_image(img); - return 0; /* deletion patch */ - } - - if (has_sha1_file(sha1)) { - /* We already have the postimage */ - enum object_type type; - unsigned long size; - char *result; - - result = read_sha1_file(sha1, &type, &size); - if (!result) - return error("the necessary postimage %s for " - "'%s' cannot be read", - patch->new_sha1_prefix, name); - clear_image(img); - img->buf = result; - img->len = size; - } else { - /* - * We have verified buf matches the preimage; - * apply the patch data to it, which is stored - * in the patch->fragments->{patch,size}. - */ - if (apply_binary_fragment(img, patch)) - 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)"), - name, patch->new_sha1_prefix, sha1_to_hex(sha1)); - } - - return 0; -} - -static int apply_fragments(struct image *img, struct patch *patch) -{ - struct fragment *frag = patch->fragments; - const char *name = patch->old_name ? patch->old_name : patch->new_name; - unsigned ws_rule = patch->ws_rule; - unsigned inaccurate_eof = patch->inaccurate_eof; - int nth = 0; - - if (patch->is_binary) - return apply_binary(img, patch); - - while (frag) { - nth++; - if (apply_one_fragment(img, frag, inaccurate_eof, ws_rule, nth)) { - error(_("patch failed: %s:%ld"), name, frag->oldpos); - if (!apply_with_reject) - return -1; - frag->rejected = 1; - } - frag = frag->next; - } - return 0; -} - -static int read_blob_object(struct strbuf *buf, const unsigned char *sha1, unsigned mode) -{ - if (S_ISGITLINK(mode)) { - strbuf_grow(buf, 100); - 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(sha1, &type, &sz); - if (!result) - return -1; - /* XXX read_sha1_file NUL-terminates */ - strbuf_attach(buf, result, sz, sz + 1); - } - 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; - - if (name == NULL) - return NULL; - - item = string_list_lookup(&fn_table, name); - if (item != NULL) - return (struct patch *)item->util; - - return NULL; -} - -/* - * 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, 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_WAS_DELETED ((struct patch *) -1) - -static int to_be_deleted(struct patch *patch) -{ - return patch == PATH_TO_BE_DELETED; -} - -static int was_deleted(struct patch *patch) -{ - return patch == PATH_WAS_DELETED; -} - -static void add_to_fn_table(struct patch *patch) -{ - struct string_list_item *item; - - /* - * Always add new_name unless patch is a deletion - * This should cover the cases for normal diffs, - * file creations and copies - */ - if (patch->new_name != NULL) { - item = string_list_insert(&fn_table, patch->new_name); - item->util = patch; - } - - /* - * store a failure on rename/deletion cases because - * later chunks shouldn't patch old names - */ - if ((patch->new_name == NULL) || (patch->is_rename)) { - item = string_list_insert(&fn_table, patch->old_name); - item->util = PATH_WAS_DELETED; - } -} - -static void prepare_fn_table(struct patch *patch) -{ - /* - * store information about incoming file deletion - */ - while (patch) { - if ((patch->new_name == NULL) || (patch->is_rename)) { - struct string_list_item *item; - item = string_list_insert(&fn_table, patch->old_name); - item->util = PATH_TO_BE_DELETED; - } - patch = patch->next; - } -} - -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; - size_t len; - char *img; - struct patch *previous; - int status; - - 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); - return 0; -} - -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; - - 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 try_threeway(struct image *image, struct patch *patch, - struct stat *st, const struct cache_entry *ce) -{ - 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."); - - 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) - hashclr(patch->threeway_stage[0]); - else - hashcpy(patch->threeway_stage[0], pre_sha1); - hashcpy(patch->threeway_stage[1], our_sha1); - hashcpy(patch->threeway_stage[2], 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); - } - return 0; -} - -static int apply_data(struct patch *patch, struct stat *st, const struct cache_entry *ce) -{ - 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; - } - 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 *previous = NULL; - int stat_ret = 0, status; - unsigned st_mode = 0; - - if (!old_name) - return 0; - - assert(patch->is_new <= 0); - previous = previous_patch(patch, &status); - - 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)); - } - - 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); - } - *ce = active_cache[pos]; - if (stat_ret < 0) { - 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); - 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)); - } - - if (!cached && !previous) - st_mode = ce_mode_from_stat(*ce, st->st_mode); - - if (patch->is_new < 0) - patch->is_new = 0; - if (!patch->old_mode) - patch->old_mode = st_mode; - if ((st_mode ^ patch->old_mode) & S_IFMT) - return error(_("%s: wrong type"), old_name); - if (st_mode != patch->old_mode) - 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; - return 0; - - 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; - const char *old_name = patch->old_name; - const char *new_name = patch->new_name; - const char *name = old_name ? old_name : new_name; - struct cache_entry *ce = NULL; - struct patch *tpatch; - int ok_if_exists; - int status; - - patch->rejected = 1; /* we will drop this after we succeed */ - - status = check_preimage(patch, &ce, &st); - if (status) - 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))) - ok_if_exists = 1; - else - ok_if_exists = 0; - - if (new_name && - ((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; - else - patch->new_mode = patch->old_mode; - } - } - - if (new_name && old_name) { - 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) { - 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); - patch->rejected = 0; - return 0; -} - -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 %s..."), patch); - err |= check_patch(patch); - patch = patch->next; - } - return err; -} - -/* This function tries to read the sha1 from the current index */ -static int get_current_sha1(const char *path, unsigned char *sha1) -{ - int pos; - - if (read_cache() < 0) - return -1; - pos = cache_name_pos(path, strlen(path)); - if (pos < 0) - return -1; - hashcpy(sha1, active_cache[pos]->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 }; - 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) { - unsigned char sha1[20]; - struct cache_entry *ce; - const char *name; - - name = patch->old_name ? patch->old_name : patch->new_name; - if (0 < patch->is_new) - continue; - - 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); - if (add_index_entry(&result, ce, ADD_CACHE_OK_TO_ADD)) - die ("Could not add %s to temporary index", name); - } - - 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); -} - -static void stat_patch_list(struct patch *patch) -{ - int files, adds, dels; - - for (files = adds = dels = 0 ; patch ; patch = patch->next) { - files++; - adds += patch->lines_added; - dels += patch->lines_deleted; - show_stats(patch); - } - - print_stat_summary(stdout, files, adds, dels); -} - -static void numstat_patch_list(struct patch *patch) -{ - for ( ; patch; patch = patch->next) { - const char *name; - name = patch->new_name ? patch->new_name : patch->old_name; - if (patch->is_binary) - printf("-\t-\t"); - else - printf("%d\t%d\t", patch->lines_added, patch->lines_deleted); - write_name_quoted(name, stdout, line_termination); - } -} - -static void show_file_mode_name(const char *newdelete, unsigned int mode, const char *name) -{ - if (mode) - printf(" %s mode %06o %s\n", newdelete, mode, name); - else - printf(" %s %s\n", newdelete, name); -} - -static void show_mode_change(struct patch *p, int show_name) -{ - if (p->old_mode && p->new_mode && p->old_mode != p->new_mode) { - if (show_name) - printf(" mode change %06o => %06o %s\n", - p->old_mode, p->new_mode, p->new_name); - else - printf(" mode change %06o => %06o\n", - p->old_mode, p->new_mode); - } -} - -static void show_rename_copy(struct patch *p) -{ - const char *renamecopy = p->is_rename ? "rename" : "copy"; - const char *old, *new; - - /* Find common prefix */ - old = p->old_name; - new = p->new_name; - while (1) { - const char *slash_old, *slash_new; - slash_old = strchr(old, '/'); - slash_new = strchr(new, '/'); - if (!slash_old || - !slash_new || - slash_old - old != slash_new - new || - memcmp(old, new, slash_new - new)) - break; - old = slash_old + 1; - new = slash_new + 1; - } - /* p->old_name thru old is the common prefix, and old and new - * through the end of names are renames - */ - if (old != p->old_name) - printf(" %s %.*s{%s => %s} (%d%%)\n", renamecopy, - (int)(old - p->old_name), p->old_name, - old, new, p->score); - else - printf(" %s %s => %s (%d%%)\n", renamecopy, - p->old_name, p->new_name, p->score); - show_mode_change(p, 0); -} - -static void summary_patch_list(struct patch *patch) -{ - struct patch *p; - - for (p = patch; p; p = p->next) { - if (p->is_new) - show_file_mode_name("create", p->new_mode, p->new_name); - else if (p->is_delete) - show_file_mode_name("delete", p->old_mode, p->old_name); - else { - if (p->is_rename || p->is_copy) - show_rename_copy(p); - else { - if (p->score) { - printf(" rewrite %s (%d%%)\n", - p->new_name, p->score); - show_mode_change(p, 0); - } - else - show_mode_change(p, 1); - } - } - } -} - -static void patch_stats(struct patch *patch) -{ - int lines = patch->lines_added + patch->lines_deleted; - - if (lines > max_change) - max_change = lines; - if (patch->old_name) { - int len = quote_c_style(patch->old_name, NULL, NULL, 0); - if (!len) - len = strlen(patch->old_name); - if (len > max_len) - max_len = len; - } - if (patch->new_name) { - int len = quote_c_style(patch->new_name, NULL, NULL, 0); - if (!len) - len = strlen(patch->new_name); - if (len > max_len) - max_len = len; - } -} - -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); - } - if (!cached) { - if (!remove_or_warn(patch->old_mode, patch->old_name) && rmdir_empty) { - remove_path(patch->old_name); - } - } -} - -static void add_index_file(const char *path, unsigned mode, void *buf, unsigned long size) -{ - struct stat st; - struct cache_entry *ce; - int namelen = strlen(path); - unsigned ce_size = cache_entry_size(namelen); - - if (!update_index) - return; - - ce = xcalloc(1, ce_size); - memcpy(ce->name, path, namelen); - ce->ce_mode = create_ce_mode(mode); - ce->ce_flags = create_ce_flags(0); - ce->ce_namelen = namelen; - if (S_ISGITLINK(mode)) { - const char *s; - - 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'"), - 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); - } - if (add_cache_entry(ce, ADD_CACHE_OK_TO_ADD) < 0) - 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) -{ - int fd; - struct strbuf nbuf = STRBUF_INIT; - - if (S_ISGITLINK(mode)) { - struct stat st; - if (!lstat(path, &st) && S_ISDIR(st.st_mode)) - return 0; - return mkdir(path, 0777); - } - - if (has_symlinks && S_ISLNK(mode)) - /* Although buf:size is counted string, it also is NUL - * terminated. - */ - return symlink(buf, path); - - fd = open(path, O_CREAT | O_EXCL | O_WRONLY, (mode & 0100) ? 0777 : 0666); - if (fd < 0) - return -1; - - if (convert_to_working_tree(path, buf, size, &nbuf)) { - size = nbuf.len; - buf = nbuf.buf; - } - write_or_die(fd, buf, size); - strbuf_release(&nbuf); - - if (close(fd) < 0) - die_errno(_("closing file '%s'"), path); - return 0; -} - -/* - * We optimistically assume that the directories exist, - * which is true 99% of the time anyway. If they don't, - * we create them and try again. - */ -static void create_one_file(char *path, unsigned mode, const char *buf, unsigned long size) -{ - if (cached) - return; - if (!try_create_file(path, mode, buf, size)) - return; - - if (errno == ENOENT) { - if (safe_create_leading_directories(path)) - return; - if (!try_create_file(path, mode, buf, size)) - return; - } - - if (errno == EEXIST || errno == EACCES) { - /* We may be trying to create a file where a directory - * used to be. - */ - struct stat st; - if (!lstat(path, &st) && (!S_ISDIR(st.st_mode) || !rmdir(path))) - errno = EEXIST; - } - - if (errno == EEXIST) { - unsigned int nr = getpid(); - - for (;;) { - char newpath[PATH_MAX]; - mksnpath(newpath, sizeof(newpath), "%s~%u", path, nr); - if (!try_create_file(newpath, mode, buf, size)) { - if (!rename(newpath, path)) - return; - unlink_or_warn(newpath); - break; - } - if (errno != EEXIST) - break; - ++nr; - } - } - 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_sha1(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]); - 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) -{ - char *path = patch->new_name; - unsigned mode = patch->new_mode; - unsigned long size = patch->resultsize; - char *buf = patch->result; - - if (!mode) - mode = S_IFREG | 0644; - create_one_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 */ -static void write_out_one_result(struct patch *patch, int phase) -{ - if (patch->is_delete > 0) { - if (phase == 0) - remove_file(patch, 1); - return; - } - if (patch->is_new > 0 || patch->is_copy) { - if (phase == 1) - create_file(patch); - return; - } - /* - * Rename or modification boils down to the same - * thing: remove the old, write the new - */ - if (phase == 0) - remove_file(patch, patch->is_rename); - if (phase == 1) - create_file(patch); -} - -static int write_out_one_reject(struct patch *patch) -{ - FILE *rej; - 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) - continue; - cnt++; - } - - if (!cnt) { - if (apply_verbosely) - say_patch_name(stderr, - _("Applied patch %s cleanly."), patch); - return 0; - } - - /* This should not happen, because a removal patch that leaves - * contents are marked "rejected" at the patch level. - */ - if (!patch->new_name) - die(_("internal error")); - - /* Say this even without --verbose */ - 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"), - cnt - 1, patch->new_name); - } - memcpy(namebuf, patch->new_name, cnt); - memcpy(namebuf + cnt, ".rej", 5); - - rej = fopen(namebuf, "w"); - if (!rej) - 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 or giving extended - * headers. While at it, maybe please "kompare" that wants - * the trailing TAB and some garbage at the end of line ;-). - */ - fprintf(rej, "diff a/%s b/%s\t(rejected hunks)\n", - patch->new_name, patch->new_name); - for (cnt = 1, frag = patch->fragments; - frag; - cnt++, frag = frag->next) { - if (!frag->rejected) { - fprintf_ln(stderr, _("Hunk #%d applied cleanly."), cnt); - continue; - } - fprintf_ln(stderr, _("Rejected hunk #%d."), cnt); - fprintf(rej, "%.*s", frag->size, frag->patch); - if (frag->patch[frag->size-1] != '\n') - fputc('\n', rej); - } - fclose(rej); - return -1; -} - -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; - while (l) { - if (l->rejected) - errs = 1; - else { - write_out_one_result(l, phase); - 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; - } - } - - if (cpath.nr) { - struct string_list_item *item; - - string_list_sort(&cpath); - for_each_string_list_item(item, &cpath) - fprintf(stderr, "U %s\n", item->string); - string_list_clear(&cpath, 0); - - rerere(0); - } - - return errs; -} - static struct lock_file lock_file; -#define INACCURATE_EOF (1<<0) -#define RECOUNT (1<<1) - -static int apply_patch(int fd, const char *filename, int options) -{ - size_t offset; - struct strbuf buf = STRBUF_INIT; /* owns the patch text */ - struct patch *list = NULL, **listp = &list; - int skipped_patch = 0; - - patch_input_file = filename; - read_patch_file(&buf, fd); - offset = 0; - while (offset < buf.len) { - struct patch *patch; - int nr; - - patch = xcalloc(1, sizeof(*patch)); - patch->inaccurate_eof = !!(options & INACCURATE_EOF); - patch->recount = !!(options & RECOUNT); - nr = parse_chunk(buf.buf + offset, buf.len - offset, patch); - if (nr < 0) - break; - if (apply_in_reverse) - reverse_patches(patch); - if (use_patch(patch)) { - patch_stats(patch); - *listp = patch; - listp = &patch->next; - } - else { - free_patch(patch); - skipped_patch++; - } - offset += nr; - } - - if (!list && !skipped_patch) - die(_("unrecognized input")); - - if (whitespace_error && (ws_error_action == die_on_ws_error)) - apply = 0; - - update_index = check_index && apply; - if (update_index && newfd < 0) - newfd = hold_locked_index(&lock_file, 1); - - if (check_index) { - if (read_cache() < 0) - die(_("unable to read index file")); - } - - if ((check || apply) && - check_patch_list(list) < 0 && - !apply_with_reject) - 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); - - if (diffstat) - stat_patch_list(list); - - if (numstat) - numstat_patch_list(list); - - if (summary) - summary_patch_list(list); - - free_patch_list(list); - strbuf_release(&buf); - string_list_clear(&fn_table, 0); - return 0; -} - -static void git_apply_config(void) -{ - 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, - const char *arg, int unset) -{ - add_name_limit(arg, 1); - return 0; -} - -static int option_parse_include(const struct option *opt, - const char *arg, int unset) +int cmd_apply(int argc, const char **argv, const char *prefix) { - add_name_limit(arg, 0); - has_include = 1; - return 0; -} - -static int option_parse_p(const struct option *opt, - const char *arg, int unset) -{ - p_value = atoi(arg); - p_value_known = 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_space_change(const struct option *opt, - const char *arg, int unset) -{ - if (unset) - ws_ignore_action = ignore_ws_none; - else - ws_ignore_action = ignore_ws_change; - return 0; -} - -static int option_parse_whitespace(const struct option *opt, - const char *arg, int unset) -{ - const char **whitespace_option = opt->value; - - *whitespace_option = arg; - parse_whitespace_option(arg); - return 0; -} - -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; - return 0; -} - -int cmd_apply(int argc, const char **argv, const char *prefix_) -{ - int i; - int errs = 0; - int is_not_gitdir = !startup_info->have_repository; int force_apply = 0; + int options = 0; + int ret; + struct apply_state state; - const char *whitespace_option = NULL; - - struct option builtin_apply_options[] = { - { 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, N_("path"), - N_("apply changes matching the given path"), - 0, option_parse_include }, - { OPTION_CALLBACK, 'p', NULL, NULL, N_("num"), - N_("remove <num> leading slashes from traditional diff paths"), - 0, option_parse_p }, - 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_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, - N_("build a temporary index based on embedded index information")), - { OPTION_CALLBACK, 'z', NULL, NULL, NULL, - N_("paths are separated with NUL character"), - PARSE_OPT_NOARG, option_parse_z }, - OPT_INTEGER('C', NULL, &p_context, - 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, - N_("ignore changes in whitespace when finding context"), - PARSE_OPT_NOARG, option_parse_space_change }, - { OPTION_CALLBACK, 0, "ignore-whitespace", NULL, NULL, - N_("ignore changes in whitespace when finding context"), - PARSE_OPT_NOARG, option_parse_space_change }, - 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, - N_("tolerate incorrectly detected missing new-line at the end of file"), - INACCURATE_EOF), - OPT_BIT(0, "recount", &options, - N_("do not trust the line counts in the hunk headers"), - RECOUNT), - { 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_apply_config(); - if (apply_default_whitespace) - parse_whitespace_option(apply_default_whitespace); - if (apply_default_ignorewhitespace) - parse_ignorewhitespace_option(apply_default_ignorewhitespace); - - 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")); - if (cached) { - if (is_not_gitdir) - die(_("--cached outside a repository")); - check_index = 1; - } - if (check_index) - unsafe_paths = 0; + if (init_apply_state(&state, prefix, &lock_file)) + exit(128); - for (i = 0; i < argc; i++) { - const char *arg = argv[i]; - int fd; + argc = apply_parse_options(argc, argv, + &state, &force_apply, &options, + apply_usage); - if (!strcmp(arg, "-")) { - errs |= apply_patch(0, "<stdin>", options); - read_stdin = 0; - continue; - } else if (0 < prefix_length) - arg = prefix_filename(prefix, prefix_length, arg); + if (check_apply_state(&state, force_apply)) + exit(128); - fd = open(arg, O_RDONLY); - if (fd < 0) - die_errno(_("can't open patch '%s'"), arg); - read_stdin = 0; - set_default_whitespace_mode(whitespace_option); - errs |= apply_patch(fd, arg, options); - close(fd); - } - set_default_whitespace_mode(whitespace_option); - if (read_stdin) - errs |= apply_patch(0, "<stdin>", options); - if (whitespace_error) { - if (squelch_whitespace_errors && - squelch_whitespace_errors < whitespace_error) { - int squelched = - whitespace_error - squelch_whitespace_errors; - warning(Q_("squelched %d whitespace error", - "squelched %d whitespace errors", - squelched), - squelched); - } - if (ws_error_action == die_on_ws_error) - 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(Q_("%d line adds whitespace errors.", - "%d lines add whitespace errors.", - whitespace_error), - whitespace_error); - } + ret = apply_all_patches(&state, argc, argv, options); - if (update_index) { - if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK)) - die(_("Unable to write new index file")); - } + clear_apply_state(&state); - return !!errs; + return ret; } diff --git a/builtin/archive.c b/builtin/archive.c index a1e3b940c2..f863465a0f 100644 --- a/builtin/archive.c +++ b/builtin/archive.c @@ -47,10 +47,10 @@ static int run_remote_archiver(int argc, const char **argv, if (name_hint) { const char *format = archive_format_from_filename(name_hint); if (format) - packet_write(fd[1], "argument --format=%s\n", format); + packet_write_fmt(fd[1], "argument --format=%s\n", format); } for (i = 1; i < argc; i++) - packet_write(fd[1], "argument %s\n", argv[i]); + packet_write_fmt(fd[1], "argument %s\n", argv[i]); packet_flush(fd[1]); buf = packet_read_line(fd[0], NULL); @@ -85,8 +85,8 @@ 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, N_("file"), - N_("write the archive to this file")), + OPT_FILENAME('o', "output", &output, + 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"), @@ -105,5 +105,5 @@ int cmd_archive(int argc, const char **argv, const char *prefix) setvbuf(stderr, NULL, _IOLBF, BUFSIZ); - return write_archive(argc, argv, prefix, 1, output, 0); + return write_archive(argc, argv, prefix, output, 0); } diff --git a/builtin/blame.c b/builtin/blame.c index 048ed53c2f..749ad7f05b 100644 --- a/builtin/blame.c +++ b/builtin/blame.c @@ -7,19 +7,12 @@ #include "cache.h" #include "builtin.h" -#include "blob.h" #include "commit.h" -#include "tag.h" -#include "tree-walk.h" #include "diff.h" -#include "diffcore.h" #include "revision.h" #include "quote.h" -#include "xdiff-interface.h" -#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" @@ -27,6 +20,8 @@ #include "line-range.h" #include "line-log.h" #include "dir.h" +#include "progress.h" +#include "blame.h" static char blame_usage[] = N_("git blame [<options>] [<rev-opts>] [<rev>] [--] <file>"); @@ -49,1506 +44,32 @@ 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; +static struct string_list mailmap = STRING_LIST_INIT_NODUP; #ifndef DEBUG #define DEBUG 0 #endif -/* stats */ -static int num_read_blob; -static int num_get_patch; -static int num_commits; - -#define PICKAXE_BLAME_MOVE 01 -#define PICKAXE_BLAME_COPY 02 -#define PICKAXE_BLAME_COPY_HARDER 04 -#define PICKAXE_BLAME_COPY_HARDEST 010 - -/* - * blame for a blame_entry with score lower than these thresholds - * is not passed to the parent using move/copy logic. - */ static unsigned blame_move_score; static unsigned blame_copy_score; -#define BLAME_DEFAULT_MOVE_SCORE 20 -#define BLAME_DEFAULT_COPY_SCORE 40 /* Remember to update object flag allocation in object.h */ #define METAINFO_SHOWN (1u<<12) #define MORE_THAN_ONE_PATH (1u<<13) -/* - * One blob in a commit that is being suspected - */ -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]; -}; - -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. - * Return 1 if the conversion succeeds, 0 otherwise. - */ -int textconv_object(const char *path, - unsigned mode, - const unsigned char *sha1, - int sha1_valid, - char **buf, - unsigned long *buf_size) -{ - struct diff_filespec *df; - struct userdiff_driver *textconv; - - df = alloc_filespec(path); - fill_filespec(df, sha1, sha1_valid, mode); - textconv = get_textconv(df); - if (!textconv) { - free_filespec(df); - return 0; - } - - *buf_size = fill_textconv(textconv, df, buf); - free_filespec(df); - return 1; -} - -/* - * Given an origin, prepare mmfile_t structure to be used by the - * diff machinery - */ -static void fill_origin_blob(struct diff_options *opt, - struct origin *o, mmfile_t *file) -{ - if (!o->file.ptr) { - enum object_type type; - unsigned long file_size; - - num_read_blob++; - if (DIFF_OPT_TST(opt, ALLOW_TEXTCONV) && - 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); - file->size = file_size; - - if (!file->ptr) - die("Cannot read blob %s for path %s", - sha1_to_hex(o->blob_sha1), - o->path); - o->file = *file; - } - else - *file = o->file; -} - -/* - * Origin is refcounted and usually we keep the blob contents to be - * reused. - */ -static inline struct origin *origin_incref(struct origin *o) -{ - if (o) - o->refcnt++; - return 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); - /* 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"); - } -} - -static void drop_origin_blob(struct origin *o) -{ - if (o->file.ptr) { - free(o->file.ptr); - o->file.ptr = NULL; - } -} - -/* - * Each group of lines is described by a blame_entry; it can be split - * 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 *next; - - /* the first line of this group in the final image; - * internally all line numbers are 0 based. - */ - int lno; - - /* how many lines this group has */ - int num_lines; - - /* the commit that introduced this group into the final image */ - struct origin *suspect; - - /* the line number of the first line of this group in the - * suspect's file; internally all line numbers are 0 based. - */ - int s_lno; - - /* how significant this entry is -- cached to avoid - * scanning the lines over and over. - */ - unsigned score; -}; - -/* - * 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; - - /* - * The contents in the final image. - * Used by many functions to obtain contents of the nth line, - * indexed with scoreboard.lineno[blame_entry.lno]. - */ - const char *final_buf; - unsigned long final_buf_size; - - /* linked list of blames */ - struct blame_entry *ent; - - /* look-up a line in the final buffer */ - int num_lines; - int *lineno; +struct progress_info { + struct progress *progress; + int blamed_lines; }; -static void sanity_check_refcnt(struct scoreboard *); - -/* - * If two blame entries that are next to each other came from - * contiguous lines in the same origin (i.e. <commit, path> pair), - * merge them together. - */ -static void coalesce(struct scoreboard *sb) -{ - struct blame_entry *ent, *next; - - for (ent = sb->ent; ent && (next = ent->next); ent = next) { - if (ent->suspect == next->suspect && - ent->s_lno + ent->num_lines == next->s_lno) { - ent->num_lines += next->num_lines; - ent->next = next->next; - origin_decref(next->suspect); - free(next); - ent->score = 0; - next = ent; /* again */ - } - } - - if (DEBUG) /* sanity */ - sanity_check_refcnt(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 - * this function directly. - */ -static struct origin *make_origin(struct commit *commit, const char *path) -{ - struct origin *o; - o = xcalloc(1, sizeof(*o) + strlen(path) + 1); - o->commit = commit; - o->refcnt = 1; - o->next = commit->util; - commit->util = o; - strcpy(o->path, path); - 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 origin *o, *l; - - 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); -} - -/* - * Fill the blob_sha1 field of an origin if it hasn't, so that later - * call to fill_origin_blob() can use it to locate the data. blob_sha1 - * for an origin is also used to pass the blame for the entire file to - * the parent to detect the case where a child's blob is identical to - * that of its parent's. - * - * This also fills origin->mode for corresponding tree path. - */ -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, - origin->path, - origin->blob_sha1, &origin->mode)) - goto error_out; - if (sha1_object_info(origin->blob_sha1, NULL) != OBJ_BLOB) - goto error_out; - return 0; - error_out: - hashclr(origin->blob_sha1); - origin->mode = S_IFINVALID; - return -1; -} - -/* - * We have an origin -- check if the same path exists in the - * parent and return an origin structure to represent it. - */ -static struct origin *find_origin(struct scoreboard *sb, - struct commit *parent, - struct origin *origin) -{ - struct origin *porigin; - struct diff_options diff_opts; - const char *paths[2]; - - /* 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. - */ - return origin_incref (porigin); - } - - /* See if the origin->path is different between parent - * and origin first. Most of the time they are the - * same and diff-tree is fairly efficient about this. - */ - diff_setup(&diff_opts); - DIFF_OPT_SET(&diff_opts, RECURSIVE); - diff_opts.detect_rename = 0; - diff_opts.output_format = DIFF_FORMAT_NO_OUTPUT; - paths[0] = origin->path; - paths[1] = NULL; - - 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); - else - diff_tree_sha1(parent->tree->object.sha1, - origin->commit->tree->object.sha1, - "", &diff_opts); - diffcore_std(&diff_opts); - - if (!diff_queued_diff.nr) { - /* The path is the same as parent */ - porigin = get_origin(sb, parent, origin->path); - hashcpy(porigin->blob_sha1, origin->blob_sha1); - porigin->mode = origin->mode; - } else { - /* - * Since origin->path is a pathspec, if the parent - * commit had it as a directory, we will see a whole - * bunch of deletion of files in the directory that we - * do not care about. - */ - int i; - struct diff_filepair *p = NULL; - for (i = 0; i < diff_queued_diff.nr; i++) { - const char *name; - p = diff_queued_diff.queue[i]; - name = p->one->path ? p->one->path : p->two->path; - if (!strcmp(name, origin->path)) - break; - } - if (!p) - die("internal error in blame::find_origin"); - switch (p->status) { - default: - die("internal error in blame::find_origin (%c)", - p->status); - case 'M': - porigin = get_origin(sb, parent, origin->path); - hashcpy(porigin->blob_sha1, p->one->sha1); - porigin->mode = p->one->mode; - break; - case 'A': - case 'T': - /* Did not exist in parent, or type changed */ - break; - } - } - diff_flush(&diff_opts); - free_pathspec(&diff_opts.pathspec); - return porigin; -} - -/* - * We have an origin -- find the path that corresponds to it in its - * parent and return an origin structure to represent it. - */ -static struct origin *find_rename(struct scoreboard *sb, - struct commit *parent, - struct origin *origin) -{ - struct origin *porigin = NULL; - struct diff_options diff_opts; - int i; - - 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; - diff_setup_done(&diff_opts); - - if (is_null_sha1(origin->commit->object.sha1)) - do_diff_cache(parent->tree->object.sha1, &diff_opts); - else - diff_tree_sha1(parent->tree->object.sha1, - origin->commit->tree->object.sha1, - "", &diff_opts); - diffcore_std(&diff_opts); - - for (i = 0; i < diff_queued_diff.nr; i++) { - struct diff_filepair *p = diff_queued_diff.queue[i]; - if ((p->status == 'R' || p->status == 'C') && - !strcmp(p->two->path, origin->path)) { - porigin = get_origin(sb, parent, p->one->path); - hashcpy(porigin->blob_sha1, p->one->sha1); - porigin->mode = p->one->mode; - break; - } - } - diff_flush(&diff_opts); - free_pathspec(&diff_opts.pathspec); - return porigin; -} - -/* - * Append a new blame entry to a given output queue. - */ -static void add_blame_entry(struct blame_entry ***queue, struct blame_entry *e) -{ - origin_incref(e->suspect); - - 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 gets added to the given queue. The - * origin of dst loses a refcnt. - */ -static void dup_entry(struct blame_entry ***queue, - struct blame_entry *dst, struct blame_entry *src) -{ - origin_incref(src->suspect); - origin_decref(dst->suspect); - memcpy(dst, src, sizeof(*src)); - dst->next = **queue; - **queue = dst; - *queue = &dst->next; -} - -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 - * line plno corresponds to e's line tlno. - * - * <---- e -----> - * <------> - * <------------> - * <------------> - * <------------------> - * - * Split e into potentially three parts; before this chunk, the chunk - * to be blamed for the parent, and after that portion. - */ -static void split_overlap(struct blame_entry *split, - struct blame_entry *e, - int tlno, int plno, int same, - struct origin *parent) -{ - int chunk_end_lno; - memset(split, 0, sizeof(struct blame_entry [3])); - - if (e->s_lno < tlno) { - /* there is a pre-chunk part not blamed on parent */ - split[0].suspect = origin_incref(e->suspect); - split[0].lno = e->lno; - split[0].s_lno = e->s_lno; - split[0].num_lines = tlno - e->s_lno; - split[1].lno = e->lno + tlno - e->s_lno; - split[1].s_lno = plno; - } - else { - split[1].lno = e->lno; - split[1].s_lno = plno + (e->s_lno - tlno); - } - - if (same < e->s_lno + e->num_lines) { - /* there is a post-chunk part not blamed on parent */ - split[2].suspect = origin_incref(e->suspect); - split[2].lno = e->lno + (same - e->s_lno); - split[2].s_lno = e->s_lno + (same - e->s_lno); - split[2].num_lines = e->s_lno + e->num_lines - same; - chunk_end_lno = split[2].lno; - } - else - chunk_end_lno = e->lno + e->num_lines; - split[1].num_lines = chunk_end_lno - split[1].lno; - - /* - * if it turns out there is nothing to blame the parent for, - * forget about the splitting. !split[1].suspect signals this. - */ - if (split[1].num_lines < 1) - return; - split[1].suspect = origin_incref(parent); -} - -/* - * split_overlap() divided an existing blame e into up to three parts - * in split. Any assigned blame is moved to queue to - * reflect the split. - */ -static void split_blame(struct blame_entry ***blamed, - struct blame_entry ***unblamed, - struct blame_entry *split, - struct blame_entry *e) -{ - struct blame_entry *new_entry; - - if (split[0].suspect && split[2].suspect) { - /* The first part (reuse storage for the existing entry e) */ - 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(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(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(blamed, e, &split[1]); - else if (split[0].suspect) { - /* me and then parent */ - dup_entry(unblamed, e, &split[0]); - - new_entry = xmalloc(sizeof(*new_entry)); - memcpy(new_entry, &(split[1]), sizeof(struct blame_entry)); - add_blame_entry(blamed, new_entry); - } - else { - /* parent and then me */ - dup_entry(blamed, e, &split[1]); - - new_entry = xmalloc(sizeof(*new_entry)); - memcpy(new_entry, &(split[2]), sizeof(struct blame_entry)); - add_blame_entry(unblamed, new_entry); - } -} - -/* - * After splitting the blame, the origins used by the - * on-stack blame_entry should lose one refcnt each. - */ -static void decref_split(struct blame_entry *split) -{ - int i; - - for (i = 0; i < 3; i++) - origin_decref(split[i].suspect); -} - -/* - * 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 struct blame_entry *reverse_blame(struct blame_entry *head, - struct blame_entry *tail) -{ - while (head) { - struct blame_entry *next = head->next; - head->next = tail; - tail = head; - head = next; - } - return tail; -} - -/* - * Process one hunk from the patch between the current suspect for - * 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 blame_entry ***dstq, struct blame_entry ***srcq, - int tlno, int offset, int same, - struct origin *parent) -{ - struct blame_entry *e = **srcq; - struct blame_entry *samep = NULL, *diffp = NULL; - - 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 origin *parent; - long offset; - struct blame_entry **dstq; - struct blame_entry **srcq; -}; - -/* 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; - 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; -} - -/* - * We are looking at the origin 'target' and aiming to pass blame - * for the lines it is suspected to its parent. Run diff to find - * which lines came from parent and pass blame for them. - */ -static void pass_blame_to_parent(struct scoreboard *sb, - struct origin *target, - struct origin *parent) -{ - mmfile_t file_p, file_o; - struct blame_chunk_cb_data d; - 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++; - - if (diff_hunks(&file_p, &file_o, 0, blame_chunk_cb, &d)) - die("unable to generate diff (%s -> %s)", - sha1_to_hex(parent->commit->object.sha1), - sha1_to_hex(target->commit->object.sha1)); - /* 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; -} - -/* - * The lines in blame_entry after splitting blames many times can become - * very small and trivial, and at some point it becomes pointless to - * blame the parents. E.g. "\t\t}\n\t}\n\n" appears everywhere in any - * ordinary C program, and it is not worth to say it was copied from - * totally unrelated file in the parent. - * - * Compute how trivial the lines in the blame_entry are. - */ -static unsigned ent_score(struct scoreboard *sb, struct blame_entry *e) -{ - unsigned score; - const char *cp, *ep; - - if (e->score) - return e->score; - - score = 1; - cp = nth_line(sb, e->lno); - ep = nth_line(sb, e->lno + e->num_lines); - while (cp < ep) { - unsigned ch = *((unsigned char *)cp); - if (isalnum(ch)) - score++; - cp++; - } - e->score = score; - return score; -} - -/* - * best_so_far[] and this[] are both a split of an existing blame_entry - * that passes blame to the parent. Maintain best_so_far the best split - * so far, by comparing this and best_so_far and copying this into - * bst_so_far as needed. - */ -static void copy_split_if_better(struct scoreboard *sb, - struct blame_entry *best_so_far, - struct blame_entry *this) -{ - int i; - - if (!this[1].suspect) - return; - if (best_so_far[1].suspect) { - if (ent_score(sb, &this[1]) < ent_score(sb, &best_so_far[1])) - return; - } - - for (i = 0; i < 3; i++) - origin_incref(this[i].suspect); - decref_split(best_so_far); - memcpy(best_so_far, this, sizeof(struct blame_entry [3])); -} - -/* - * We are looking at a part of the final image represented by - * ent (tlno and same are offset by ent->s_lno). - * tlno is where we are looking at in the final image. - * up to (but not including) same match preimage. - * plno is where we are looking at in the preimage. - * - * <-------------- final image ----------------------> - * <------ent------> - * ^tlno ^same - * <---------preimage-----> - * ^plno - * - * All line numbers are 0-based. - */ -static void handle_split(struct scoreboard *sb, - struct blame_entry *ent, - int tlno, int plno, int same, - struct origin *parent, - struct blame_entry *split) -{ - if (ent->num_lines <= tlno) - return; - if (tlno < same) { - struct blame_entry this[3]; - tlno += ent->s_lno; - same += ent->s_lno; - split_overlap(this, ent, tlno, plno, same, parent); - copy_split_if_better(sb, split, this); - decref_split(this); - } -} - -struct handle_split_cb_data { - struct scoreboard *sb; - struct blame_entry *ent; - struct origin *parent; - struct blame_entry *split; - long plno; - long tlno; -}; - -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, start_b, d->parent, - d->split); - d->plno = start_a + count_a; - d->tlno = start_b + count_b; - return 0; -} - -/* - * Find the lines from parent that are the same as ent so that - * we can pass blames to it. file_p has the blob contents for - * the parent. - */ -static void find_copy_in_blob(struct scoreboard *sb, - struct blame_entry *ent, - struct origin *parent, - struct blame_entry *split, - mmfile_t *file_p) -{ - const char *cp; - mmfile_t file_o; - struct handle_split_cb_data d; - - memset(&d, 0, sizeof(d)); - d.sb = sb; d.ent = ent; d.parent = parent; d.split = split; - /* - * Prepare mmfile that contains only the lines in ent. - */ - cp = nth_line(sb, ent->lno); - file_o.ptr = (char *) cp; - 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(split, 0, sizeof(struct blame_entry [3])); - if (diff_hunks(file_p, &file_o, 1, handle_split_cb, &d)) - die("unable to generate diff (%s)", - sha1_to_hex(parent->commit->object.sha1)); - /* 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 void find_move_in_parent(struct scoreboard *sb, - struct blame_entry ***blamed, - struct blame_entry **toosmall, - struct origin *target, - struct origin *parent) -{ - struct blame_entry *e, split[3]; - struct blame_entry *unblamed = target->suspects; - struct blame_entry *leftover = NULL; - mmfile_t file_p; - - if (!unblamed) - return; /* nothing remains for this target */ - - fill_origin_blob(&sb->revs->diffopt, parent, &file_p); - if (!file_p.ptr) - return; - - /* 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(blamed, &unblamedtail, split, e); - } else { - e->next = leftover; - leftover = e; - } - decref_split(split); - } - *unblamedtail = NULL; - toosmall = filter_small(sb, toosmall, &unblamed, blame_move_score); - } while (unblamed); - target->suspects = reverse_blame(leftover, NULL); -} - -struct blame_list { - struct blame_entry *ent; - struct blame_entry split[3]; -}; - -/* - * 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 blame_entry *unblamed, - int *num_ents_p) -{ - struct blame_entry *e; - int num_ents, i; - struct blame_list *blame_list = NULL; - - 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 = unblamed, i = 0; e; e = e->next) - blame_list[i++].ent = e; - } - *num_ents_p = num_ents; - return blame_list; -} - -/* - * 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 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; - int i, j; - struct blame_list *blame_list; - int num_ents; - struct blame_entry *unblamed = target->suspects; - struct blame_entry *leftover = NULL; - - 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; - - diff_setup_done(&diff_opts); - - /* Try "find copies harder" on new path if requested; - * we do not want to use diffcore_rename() actually to - * match things up; find_copies_harder is set only to - * force diff_tree_sha1() to feed all filepairs to diff_queue, - * and this code needs to be after diff_setup_done(), which - * usually makes find-copies-harder imply copy detection. - */ - if ((opt & PICKAXE_BLAME_COPY_HARDEST) - || ((opt & PICKAXE_BLAME_COPY_HARDER) - && (!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); - else - diff_tree_sha1(parent->tree->object.sha1, - target->commit->tree->object.sha1, - "", &diff_opts); - - if (!DIFF_OPT_TST(&diff_opts, FIND_COPIES_HARDER)) - diffcore_std(&diff_opts); - - 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]; - struct origin *norigin; - mmfile_t file_p; - struct blame_entry this[3]; - - if (!DIFF_FILE_VALID(p->one)) - continue; /* does not exist in parent */ - if (S_ISGITLINK(p->one->mode)) - continue; /* ignore git links */ - if (porigin && !strcmp(p->one->path, porigin->path)) - /* find_move already dealt with this path */ - continue; - - norigin = get_origin(sb, parent, p->one->path); - hashcpy(norigin->blob_sha1, p->one->sha1); - norigin->mode = p->one->mode; - fill_origin_blob(&sb->revs->diffopt, norigin, &file_p); - if (!file_p.ptr) - continue; - - for (j = 0; j < num_ents; j++) { - find_copy_in_blob(sb, blame_list[j].ent, - norigin, this, &file_p); - copy_split_if_better(sb, blame_list[j].split, - this); - decref_split(this); - } - origin_decref(norigin); - } - - for (j = 0; j < num_ents; j++) { - struct blame_entry *split = blame_list[j].split; - if (split[1].suspect && - blame_copy_score < ent_score(sb, &split[1])) { - split_blame(blamed, &unblamedtail, split, - blame_list[j].ent); - } else { - blame_list[j].ent->next = leftover; - leftover = blame_list[j].ent; - } - decref_split(split); - } - free(blame_list); - *unblamedtail = NULL; - toosmall = filter_small(sb, toosmall, &unblamed, blame_copy_score); - } while (unblamed); - target->suspects = reverse_blame(leftover, NULL); - diff_flush(&diff_opts); - free_pathspec(&diff_opts.pathspec); -} - -/* - * The blobs of origin and porigin exactly match, so everything - * origin is suspected for can be blamed on the parent. - */ -static void pass_whole_blame(struct scoreboard *sb, - struct origin *origin, struct origin *porigin) -{ - struct blame_entry *e, *suspects; - - if (!porigin->file.ptr && origin->file.ptr) { - /* Steal its file */ - porigin->file = origin->file; - origin->file.ptr = NULL; - } - 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); -} - -/* - * We pass blame from the current commit to its parents. We keep saying - * "parent" (and "porigin"), but what we mean is to find scapegoat to - * exonerate ourselves. - */ -static struct commit_list *first_scapegoat(struct rev_info *revs, struct commit *commit) -{ - if (!reverse) - return commit->parents; - return lookup_decoration(&revs->children, &commit->object); -} - -static int num_scapegoats(struct rev_info *revs, struct commit *commit) -{ - struct commit_list *l = first_scapegoat(revs, commit); - 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 - -static void pass_blame(struct scoreboard *sb, struct origin *origin, int opt) -{ - struct rev_info *revs = sb->revs; - int i, pass, num_sg; - struct commit *commit = origin->commit; - 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) - goto finish; - else if (num_sg < ARRAY_SIZE(sg_buf)) - memset(sg_buf, 0, sizeof(sg_buf)); - else - sg_origin = xcalloc(num_sg, sizeof(*sg_origin)); - - /* - * 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 - no_whole_file_rename; pass++) { - struct origin *(*find)(struct scoreboard *, - struct commit *, struct origin *); - find = pass ? find_rename : find_origin; - - for (i = 0, sg = first_scapegoat(revs, commit); - i < num_sg && sg; - sg = sg->next, i++) { - struct commit *p = sg->item; - int j, same; - - if (sg_origin[i]) - continue; - if (parse_commit(p)) - continue; - porigin = find(sb, p, origin); - if (!porigin) - continue; - if (!hashcmp(porigin->blob_sha1, origin->blob_sha1)) { - pass_whole_blame(sb, origin, porigin); - origin_decref(porigin); - goto finish; - } - for (j = same = 0; j < i; j++) - if (sg_origin[j] && - !hashcmp(sg_origin[j]->blob_sha1, - porigin->blob_sha1)) { - same = 1; - break; - } - if (!same) - sg_origin[i] = porigin; - else - origin_decref(porigin); - } - } - - num_commits++; - 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 (!origin->previous) { - origin_incref(porigin); - origin->previous = porigin; - } - pass_blame_to_parent(sb, origin, porigin); - if (!origin->suspects) - goto finish; - } - - /* - * Optionally find moves in parents' files. - */ - 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 (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]; - find_copy_in_parent(sb, &blametail, &toosmall, - origin, sg->item, porigin, opt); - if (!origin->suspects) - goto 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]); - origin_decref(sg_origin[i]); - } - } - drop_origin_blob(origin); - if (sg_buf != sg_origin) - free(sg_origin); + return blame_nth_line((struct blame_scoreboard *)data, lno); } /* @@ -1557,13 +78,13 @@ finish: struct commit_info { struct strbuf author; struct strbuf author_mail; - unsigned long author_time; + timestamp_t author_time; struct strbuf author_tz; /* filled only when asked for details */ struct strbuf committer; struct strbuf committer_mail; - unsigned long committer_time; + timestamp_t committer_time; struct strbuf committer_tz; struct strbuf summary; @@ -1574,7 +95,7 @@ struct commit_info { */ static void get_ac_line(const char *inbuf, const char *what, struct strbuf *name, struct strbuf *mail, - unsigned long *time, struct strbuf *tz) + timestamp_t *time, struct strbuf *tz) { struct ident_split ident; size_t len, maillen, namelen; @@ -1681,19 +202,29 @@ static void get_commit_info(struct commit *commit, if (len) strbuf_add(&ret->summary, subject, len); else - strbuf_addf(&ret->summary, "(%s)", sha1_to_hex(commit->object.sha1)); + strbuf_addf(&ret->summary, "(%s)", oid_to_hex(&commit->object.oid)); unuse_commit_buffer(commit, message); } /* + * Write out any suspect information which depends on the path. This must be + * handled separately from emit_one_suspect_detail(), because a given commit + * may have changes in multiple paths. So this needs to appear each time + * we mention a new group. + * * To allow LF and other nonportable characters in pathnames, * they are c-style quoted as needed. */ -static void write_filename_info(const char *path) +static void write_filename_info(struct blame_origin *suspect) { + if (suspect->previous) { + struct blame_origin *prev = suspect->previous; + printf("previous %s ", oid_to_hex(&prev->commit->object.oid)); + write_name_quoted(prev->path, stdout, '\n'); + } printf("filename "); - write_name_quoted(path, stdout, '\n'); + write_name_quoted(suspect->path, stdout, '\n'); } /* @@ -1702,7 +233,7 @@ static void write_filename_info(const char *path) * the first time each commit appears in the output (unless the * user has specifically asked for us to repeat). */ -static int emit_one_suspect_detail(struct origin *suspect, int repeat) +static int emit_one_suspect_detail(struct blame_origin *suspect, int repeat) { struct commit_info ci; @@ -1713,20 +244,15 @@ static int emit_one_suspect_detail(struct origin *suspect, int repeat) get_commit_info(suspect->commit, &ci, 1); 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-time %"PRItime"\n", ci.author_time); 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-time %"PRItime"\n", ci.committer_time); 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)); - write_name_quoted(prev->path, stdout, '\n'); - } commit_info_destroy(&ci); @@ -1737,102 +263,39 @@ static int emit_one_suspect_detail(struct origin *suspect, int repeat) * 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, void *data) { + struct progress_info *pi = (struct progress_info *)data; + if (incremental) { - struct origin *suspect = ent->suspect; + struct blame_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); + write_filename_info(suspect); maybe_flush_or_die(stdout, "stdout"); } + pi->blamed_lines += ent->num_lines; + display_progress(pi->progress, pi->blamed_lines); } -/* - * 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); - - while (commit) { - struct blame_entry *ent; - struct origin *suspect = commit->util; - - /* find one suspect to break down */ - 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); - parse_commit(commit); - if (reverse || - (!(commit->object.flags & UNINTERESTING) && - !(revs->max_age != -1 && commit->date < revs->max_age))) - pass_blame(sb, suspect, opt); - else { - commit->object.flags |= UNINTERESTING; - if (commit->object.parsed) - mark_parents_uninteresting(commit); - } - /* treat root commit as boundary */ - if (!commit->parents && !show_root) - commit->object.flags |= UNINTERESTING; - - /* Take responsibility for the remaining entries */ - ent = suspect->suspects; - if (ent) { - suspect->guilty = 1; - for (;;) { - struct blame_entry *next = ent->next; - found_guilty_entry(ent); - 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); - } -} - -static const char *format_time(unsigned long time, const char *tz_str, +static const char *format_time(timestamp_t time, const char *tz_str, int show_raw_time) { static struct strbuf time_buf = STRBUF_INIT; strbuf_reset(&time_buf); if (show_raw_time) { - strbuf_addf(&time_buf, "%lu %s", time, tz_str); + strbuf_addf(&time_buf, "%"PRItime" %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_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 @@ -1857,23 +320,23 @@ static const char *format_time(unsigned long time, const char *tz_str, #define OUTPUT_SHOW_EMAIL 0400 #define OUTPUT_LINE_PORCELAIN 01000 -static void emit_porcelain_details(struct origin *suspect, int repeat) +static void emit_porcelain_details(struct blame_origin *suspect, int repeat) { if (emit_one_suspect_detail(suspect, repeat) || (suspect->commit->object.flags & MORE_THAN_ONE_PATH)) - write_filename_info(suspect->path); + write_filename_info(suspect); } -static void emit_porcelain(struct scoreboard *sb, struct blame_entry *ent, +static void emit_porcelain(struct blame_scoreboard *sb, struct blame_entry *ent, int opt) { int repeat = opt & OUTPUT_LINE_PORCELAIN; int cnt; const char *cp; - struct origin *suspect = ent->suspect; - char hex[41]; + struct blame_origin *suspect = ent->suspect; + char hex[GIT_MAX_HEXSZ + 1]; - strcpy(hex, sha1_to_hex(suspect->commit->object.sha1)); + oid_to_hex_r(hex, &suspect->commit->object.oid); printf("%s %d %d %d\n", hex, ent->s_lno + 1, @@ -1881,7 +344,7 @@ static void emit_porcelain(struct scoreboard *sb, struct blame_entry *ent, ent->num_lines); emit_porcelain_details(suspect, repeat); - cp = nth_line(sb, ent->lno); + cp = blame_nth_line(sb, ent->lno); for (cnt = 0; cnt < ent->num_lines; cnt++) { char ch; if (cnt) { @@ -1903,22 +366,22 @@ static void emit_porcelain(struct scoreboard *sb, struct blame_entry *ent, putchar('\n'); } -static void emit_other(struct scoreboard *sb, struct blame_entry *ent, int opt) +static void emit_other(struct blame_scoreboard *sb, struct blame_entry *ent, int opt) { int cnt; const char *cp; - struct origin *suspect = ent->suspect; + struct blame_origin *suspect = ent->suspect; struct commit_info ci; - char hex[41]; + char hex[GIT_MAX_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)); + oid_to_hex_r(hex, &suspect->commit->object.oid); - cp = nth_line(sb, ent->lno); + cp = blame_nth_line(sb, ent->lno); for (cnt = 0; cnt < ent->num_lines; cnt++) { char ch; - int length = (opt & OUTPUT_LONG_OBJECT_NAME) ? 40 : abbrev; + int length = (opt & OUTPUT_LONG_OBJECT_NAME) ? GIT_SHA1_HEXSZ : abbrev; if (suspect->commit->object.flags & UNINTERESTING) { if (blank_boundary) @@ -1982,14 +445,14 @@ static void emit_other(struct scoreboard *sb, struct blame_entry *ent, int opt) commit_info_destroy(&ci); } -static void output(struct scoreboard *sb, int option) +static void output(struct blame_scoreboard *sb, int option) { struct blame_entry *ent; if (option & OUTPUT_PORCELAIN) { for (ent = sb->ent; ent; ent = ent->next) { int count = 0; - struct origin *suspect; + struct blame_origin *suspect; struct commit *commit = ent->suspect->commit; if (commit->object.flags & MORE_THAN_ONE_PATH) continue; @@ -2011,39 +474,6 @@ 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. - */ -static int prepare_lines(struct scoreboard *sb) -{ - const char *buf = sb->final_buf; - unsigned long len = sb->final_buf_size; - 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++; - - sb->lineno = lineno = xmalloc(sizeof(*sb->lineno) * (num + 1)); - - for (p = buf; p < end; p = get_next_line(p, end)) - *lineno++ = p - buf; - - *lineno = len; - - sb->num_lines = num; - return sb->num_lines; -} - /* * Add phony grafts for use with -S; this is primarily to * support git's cvsserver that wants to give a linear history @@ -2051,7 +481,7 @@ static int prepare_lines(struct scoreboard *sb) */ static int read_ancestry(const char *graft_file) { - FILE *fp = fopen(graft_file, "r"); + FILE *fp = fopen_or_warn(graft_file, "r"); struct strbuf buf = STRBUF_INIT; if (!fp) return -1; @@ -2066,9 +496,9 @@ static int read_ancestry(const char *graft_file) return 0; } -static int update_auto_abbrev(int auto_abbrev, struct origin *suspect) +static int update_auto_abbrev(int auto_abbrev, struct blame_origin *suspect) { - const char *uniq = find_unique_abbrev(suspect->commit->object.sha1, + const char *uniq = find_unique_abbrev(suspect->commit->object.oid.hash, auto_abbrev); int len = strlen(uniq); if (auto_abbrev < len) @@ -2080,17 +510,17 @@ static int update_auto_abbrev(int auto_abbrev, struct origin *suspect) * How many columns do we need to show line numbers, authors, * and filenames? */ -static void find_alignment(struct scoreboard *sb, int *option) +static void find_alignment(struct blame_scoreboard *sb, int *option) { int longest_src_lines = 0; int longest_dst_lines = 0; unsigned largest_score = 0; struct blame_entry *e; int compute_auto_abbrev = (abbrev < 0); - int auto_abbrev = default_abbrev; + int auto_abbrev = DEFAULT_ABBREV; for (e = sb->ent; e; e = e->next) { - struct origin *suspect = e->suspect; + struct blame_origin *suspect = e->suspect; int num; if (compute_auto_abbrev) @@ -2118,8 +548,8 @@ static void find_alignment(struct scoreboard *sb, int *option) num = e->lno + e->num_lines; if (longest_dst_lines < num) longest_dst_lines = num; - if (largest_score < ent_score(sb, e)) - largest_score = ent_score(sb, e); + if (largest_score < blame_entry_score(sb, e)) + largest_score = blame_entry_score(sb, e); } max_orig_digits = decimal_width(longest_src_lines); max_digits = decimal_width(longest_dst_lines); @@ -2130,31 +560,12 @@ static void find_alignment(struct scoreboard *sb, int *option) abbrev = auto_abbrev + 1; } -/* - * For debugging -- origin is refcounted, and this asserts that - * we do not underflow. - */ -static void sanity_check_refcnt(struct scoreboard *sb) +static void sanity_check_on_fail(struct blame_scoreboard *sb, int baa) { - int baa = 0; - struct blame_entry *ent; - - for (ent = sb->ent; ent; ent = ent->next) { - /* Nobody should have zero or negative refcnt */ - 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), - ent->suspect->refcnt); - baa = 1; - } - } - if (baa) { - int opt = 0160; - find_alignment(sb, &opt); - output(sb, opt); - die("Baa %d!", baa); - } + int opt = OUTPUT_SHOW_SCORE | OUTPUT_SHOW_NUMBER | OUTPUT_SHOW_NAME; + find_alignment(sb, &opt); + output(sb, opt); + die("Baa %d!", baa); } static unsigned parse_score(const char *arg) @@ -2181,269 +592,29 @@ 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; } + if (git_diff_heuristic_config(var, value, cb) < 0) + return -1; if (userdiff_config(var, value) < 0) return -1; 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.sha1; - 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; - const char *merge_head_file = git_path("MERGE_HEAD"); - struct strbuf line = STRBUF_INIT; - - merge_head = open(merge_head_file, O_RDONLY); - if (merge_head < 0) { - if (errno == ENOENT) - return; - die("cannot open '%s' for reading", merge_head_file); - } - - 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", merge_head_file, 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. - */ -static struct commit *fake_working_tree_commit(struct diff_options *opt, - const char *path, - const char *contents_from) -{ - 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; - time_t now; - int size, len; - struct cache_entry *ce; - unsigned mode; - struct strbuf msg = STRBUF_INIT; - - time(&now); - commit = alloc_commit_node(); - commit->object.parsed = 1; - commit->date = now; - 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", - sha1_to_hex(parent->item->object.sha1)); - 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; - char *buf_ptr; - unsigned long buf_len; - - if (contents_from) { - if (stat(contents_from, &st) < 0) - die_errno("Cannot stat '%s'", contents_from); - read_from = contents_from; - } - else { - if (lstat(path, &st) < 0) - die_errno("Cannot lstat '%s'", path); - read_from = path; - } - mode = canon_mode(st.st_mode); - - switch (st.st_mode & S_IFMT) { - case S_IFREG: - if (DIFF_OPT_TST(opt, ALLOW_TEXTCONV) && - 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); - break; - case S_IFLNK: - if (strbuf_readlink(&buf, read_from, st.st_size) < 0) - die_errno("cannot readlink '%s'", read_from); - break; - default: - die("unsupported file type %s", read_from); - } - } - else { - /* Reading from stdin */ - mode = 0; - if (strbuf_read(&buf, 0, 0) < 0) - die_errno("failed to read from stdin"); - } - convert_to_git(path, buf.buf, buf.len, &buf, 0); - origin->file.ptr = buf.buf; - origin->file.size = buf.len; - pretend_sha1_file(buf.buf, buf.len, OBJ_BLOB, origin->blob_sha1); - - /* - * Read the current index, replace the path entry with - * origin->blob_sha1 without mucking with its mode or type - * bits; we are not going to write this index out -- we just - * want to run "diff-index --cached". - */ - discard_cache(); - read_cache(); - - len = strlen(path); - if (!mode) { - int pos = cache_name_pos(path, len); - if (0 <= pos) - mode = active_cache[pos]->ce_mode; - else - /* Let's not bother reading from HEAD tree */ - mode = S_IFREG | 0644; - } - size = cache_entry_size(len); - ce = xcalloc(1, size); - hashcpy(ce->sha1, origin->blob_sha1); - memcpy(ce->name, path, len); - 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(&the_index, path); - - return commit; -} - -static char *prepare_final(struct scoreboard *sb) -{ - int i; - const char *final_commit_name = NULL; - struct rev_info *revs = sb->revs; - - /* - * 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); - if (obj->type != OBJ_COMMIT) - die("Non commit %s?", revs->pending.objects[i].name); - if (sb->final) - 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; - } - return xstrdup_or_null(final_commit_name); -} - -static char *prepare_initial(struct scoreboard *sb) -{ - int i; - const char *final_commit_name = NULL; - struct rev_info *revs = sb->revs; - - /* - * There must be one and only one negative commit, and it must be - * the boundary. - */ - 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); - if (obj->type != OBJ_COMMIT) - die("Non commit %s?", revs->pending.objects[i].name); - if (sb->final) - die("More than one commit to dig down to %s and %s?", - revs->pending.objects[i].name, - final_commit_name); - sb->final = (struct commit *) obj; - final_commit_name = revs->pending.objects[i].name; - } - if (!final_commit_name) - die("No commit to dig down to?"); - return xstrdup(final_commit_name); -} - static int blame_copy_callback(const struct option *option, const char *arg, int unset) { int *opt = option->value; @@ -2481,23 +652,23 @@ 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_scoreboard sb; + struct blame_origin *o; struct blame_entry *ent = NULL; long dashdash_pos, lno; - char *final_commit_name = NULL; - enum object_type type; - - 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[] = { + struct progress_info pi = { NULL, 0 }; + + struct string_list range_list = STRING_LIST_INIT_NODUP; + int output_option = 0, opt = 0; + int show_stats = 0; + const char *revs_file = NULL; + const char *contents_from = NULL; + const struct option options[] = { 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), @@ -2509,6 +680,14 @@ int cmd_blame(int argc, const char **argv, const char *prefix) 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), + + /* + * The following two options are parsed by parse_revision_opt() + * and are only included here to get included in the "-h" + * output: + */ + { OPTION_LOWLEVEL_CALLBACK, 0, "indent-heuristic", NULL, NULL, N_("Use an experimental heuristic to improve diffs"), PARSE_OPT_NOARG, parse_opt_unknown_cb }, + 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")), @@ -2525,7 +704,7 @@ int cmd_blame(int argc, const char **argv, const char *prefix) 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); @@ -2533,6 +712,7 @@ int cmd_blame(int argc, const char **argv, const char *prefix) 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); @@ -2554,25 +734,35 @@ int cmd_blame(int argc, const char **argv, const char *prefix) } parse_done: no_whole_file_rename = !DIFF_OPT_TST(&revs.diffopt, FOLLOW_RENAMES); + xdl_opts |= revs.diffopt.xdl_opts & XDF_INDENT_HEURISTIC; DIFF_OPT_CLR(&revs.diffopt, FOLLOW_RENAMES); argc = parse_options_end(&ctx); - if (0 < 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 && abbrev < GIT_SHA1_HEXSZ) /* one more abbrev length is needed for the boundary commit */ abbrev++; + else if (!abbrev) + abbrev = GIT_SHA1_HEXSZ; 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; @@ -2585,22 +775,30 @@ parse_done: case DATE_RAW: blame_date_width = sizeof("1161298804 -0700"); break; + case DATE_UNIX: + blame_date_width = sizeof("1161298804"); + break; case DATE_SHORT: blame_date_width = sizeof("2006-10-19"); break; case DATE_RELATIVE: - /* 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. */ + /* + * 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_LOCAL: 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 */ @@ -2608,11 +806,6 @@ parse_done: opt |= (PICKAXE_BLAME_COPY | PICKAXE_BLAME_MOVE | PICKAXE_BLAME_COPY_HARDER); - if (!blame_move_score) - blame_move_score = BLAME_DEFAULT_MOVE_SCORE; - if (!blame_copy_score) - blame_copy_score = BLAME_DEFAULT_COPY_SCORE; - /* * We have collected options unknown to us in argv[1..unk] * which are to be passed to revision machinery if we are @@ -2665,70 +858,16 @@ parse_done: revs.disable_stdin = 1; setup_revisions(argc, argv, &revs, NULL); - memset(&sb, 0, sizeof(sb)); + init_scoreboard(&sb); sb.revs = &revs; - 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 { - final_commit_name = prepare_initial(&sb); - sb.commits.compare = compare_commits_by_reverse_commit_date; - } - - if (!sb.final) { - /* - * "--not A B -- path" without anything positive; - * do not default to HEAD, but use the working tree - * or "--contents". - */ - setup_work_tree(); - sb.final = fake_working_tree_commit(&sb.revs->diffopt, - path, contents_from); - add_pending_object(&revs, &(sb.final->object), ":"); - } - else if (contents_from) - die("Cannot use --contents with final commit object name"); - - /* - * 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")); - - if (is_null_sha1(sb.final->object.sha1)) { - o = sb.final->util; - sb.final_buf = xmemdupz(o->file.ptr, o->file.size); - sb.final_buf_size = o->file.size; - } - else { - o = get_origin(&sb, sb.final, path); - if (fill_blob_sha1_and_mode(o)) - 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, 1, (char **) &sb.final_buf, - &sb.final_buf_size)) - ; - else - sb.final_buf = read_sha1_file(o->blob_sha1, &type, - &sb.final_buf_size); - - if (!sb.final_buf) - die("Cannot read blob %s for path %s", - sha1_to_hex(o->blob_sha1), - path); - } - num_read_blob++; - lno = prepare_lines(&sb); + sb.contents_from = contents_from; + sb.reverse = reverse; + setup_scoreboard(&sb, path, &o); + lno = sb.num_lines; if (lno && !range_list.nr) - string_list_append(&range_list, xstrdup("1")); + string_list_append(&range_list, "1"); anchor = 1; range_set_init(&ranges, range_list.nr); @@ -2739,7 +878,9 @@ parse_done: &bottom, &top, sb.path)) usage(blame_usage); if (lno < top || ((lno || bottom) && lno < bottom)) - die("file %s has only %lu lines", path, lno); + die(Q_("file %s has only %lu line", + "file %s has only %lu lines", + lno), path, lno); if (bottom < 1) bottom = 1; if (top < 1) @@ -2752,22 +893,13 @@ parse_done: 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); + ent = blame_entry_prepend(ent, r->start, r->end, o); } o->suspects = ent; prio_queue_put(&sb.commits, o->commit); - origin_decref(o); + blame_origin_decref(o); range_set_release(&ranges); string_list_clear(&range_list, 0); @@ -2775,21 +907,38 @@ parse_done: sb.ent = NULL; sb.path = path; + if (blame_move_score) + sb.move_score = blame_move_score; + if (blame_copy_score) + sb.copy_score = blame_copy_score; + + sb.debug = DEBUG; + sb.on_sanity_fail = &sanity_check_on_fail; + + sb.show_root = show_root; + sb.xdl_opts = xdl_opts; + sb.no_whole_file_rename = no_whole_file_rename; + read_mailmap(&mailmap, NULL); - if (!incremental) - setup_pager(); + sb.found_guilty_entry = &found_guilty_entry; + sb.found_guilty_entry_data = π + if (show_progress) + pi.progress = start_progress_delay(_("Blaming lines"), + sb.num_lines, 50, 1); assign_blame(&sb, opt); - free(final_commit_name); + stop_progress(&pi.progress); - if (incremental) + if (!incremental) + setup_pager(); + else return 0; - sb.ent = blame_sort(sb.ent, compare_blame_final); + blame_sort_final(&sb); - coalesce(&sb); + blame_coalesce(&sb); if (!(output_option & OUTPUT_PORCELAIN)) find_alignment(&sb, &output_option); @@ -2803,9 +952,9 @@ parse_done: } if (show_stats) { - printf("num read blob: %d\n", num_read_blob); - printf("num get patch: %d\n", num_get_patch); - printf("num commits: %d\n", num_commits); + printf("num read blob: %d\n", sb.num_read_blob); + printf("num get patch: %d\n", sb.num_get_patch); + printf("num commits: %d\n", sb.num_commits); } return 0; } diff --git a/builtin/branch.c b/builtin/branch.c index a0a03fc6de..83fcda43dc 100644 --- a/builtin/branch.c +++ b/builtin/branch.c @@ -19,29 +19,30 @@ #include "column.h" #include "utf8.h" #include "wt-status.h" +#include "ref-filter.h" +#include "worktree.h" static const char * const builtin_branch_usage[] = { 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]"), + N_("git branch [<options>] [-r | -a] [--format]"), NULL }; -#define REF_LOCAL_BRANCH 0x01 -#define REF_REMOTE_BRANCH 0x02 - static const char *head; -static unsigned char head_sha1[20]; +static struct object_id head_oid; static int branch_use_color = -1; static char branch_colors[][COLOR_MAXLEN] = { GIT_COLOR_RESET, - GIT_COLOR_NORMAL, /* PLAIN */ - GIT_COLOR_RED, /* REMOTE */ - GIT_COLOR_NORMAL, /* LOCAL */ - GIT_COLOR_GREEN, /* CURRENT */ - GIT_COLOR_BLUE, /* UPSTREAM */ + GIT_COLOR_NORMAL, /* PLAIN */ + GIT_COLOR_RED, /* REMOTE */ + GIT_COLOR_NORMAL, /* LOCAL */ + GIT_COLOR_GREEN, /* CURRENT */ + GIT_COLOR_BLUE, /* UPSTREAM */ }; enum color_branch { BRANCH_COLOR_RESET = 0, @@ -52,13 +53,6 @@ enum color_branch { 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; @@ -121,18 +115,16 @@ 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); - unsigned char sha1[20]; + const char *upstream = branch_get_upstream(branch, NULL); + struct object_id oid; - 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, RESOLVE_REF_READING, - sha1, NULL)) != NULL) - reference_rev = lookup_commit_reference(sha1); + resolve_refdup(upstream, RESOLVE_REF_READING, + oid.hash, NULL)) != NULL) + reference_rev = lookup_commit_reference(&oid); } if (!reference_rev) reference_rev = head_rev; @@ -162,10 +154,10 @@ static int branch_merged(int kind, const char *name, } static int check_branch_commit(const char *branchname, const char *refname, - unsigned char *sha1, struct commit *head_rev, + const struct object_id *oid, struct commit *head_rev, int kinds, int force) { - struct commit *rev = lookup_commit_reference(sha1); + struct commit *rev = lookup_commit_reference(oid); if (!rev) { error(_("Couldn't look up commit object for '%s'"), refname); return -1; @@ -192,54 +184,62 @@ static int delete_branches(int argc, const char **argv, int force, int kinds, int quiet) { struct commit *head_rev = NULL; - unsigned char sha1[20]; + struct object_id oid; char *name = NULL; const char *fmt; int i; int ret = 0; int remote_branch = 0; struct strbuf bname = STRBUF_INIT; + unsigned allowed_interpret; switch (kinds) { - case REF_REMOTE_BRANCH: + case FILTER_REFS_REMOTES: fmt = "refs/remotes/%s"; /* For subsequent UI messages */ remote_branch = 1; + allowed_interpret = INTERPRET_BRANCH_REMOTE; force = 1; break; - case REF_LOCAL_BRANCH: + case FILTER_REFS_BRANCHES: fmt = "refs/heads/%s"; + allowed_interpret = INTERPRET_BRANCH_LOCAL; break; default: die(_("cannot use -a with -d")); } if (!force) { - head_rev = lookup_commit_reference(head_sha1); + head_rev = lookup_commit_reference(&head_oid); if (!head_rev) die(_("Couldn't look up commit object for HEAD")); } for (i = 0; i < argc; i++, strbuf_release(&bname)) { - const char *target; + char *target = NULL; int flags = 0; - 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; - } - + strbuf_branchname(&bname, argv[i], allowed_interpret); free(name); - name = mkpathdup(fmt, bname.buf); - target = resolve_ref_unsafe(name, - RESOLVE_REF_READING - | RESOLVE_REF_NO_RECURSE - | RESOLVE_REF_ALLOW_BAD_NAME, - sha1, &flags); + + 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; + } + } + + target = resolve_refdup(name, + RESOLVE_REF_READING + | RESOLVE_REF_NO_RECURSE + | RESOLVE_REF_ALLOW_BAD_NAME, + oid.hash, &flags); if (!target) { error(remote_branch ? _("remote-tracking branch '%s' not found.") @@ -249,19 +249,20 @@ static int delete_branches(int argc, const char **argv, int force, int kinds, } if (!(flags & (REF_ISSYMREF|REF_ISBROKEN)) && - check_branch_commit(bname.buf, name, sha1, head_rev, kinds, + check_branch_commit(bname.buf, name, &oid, head_rev, kinds, force)) { ret = 1; - continue; + goto next; } - if (delete_ref(name, sha1, REF_NODEREF)) { + if (delete_ref(NULL, name, is_null_oid(&oid) ? NULL : oid.hash, + REF_NODEREF)) { error(remote_branch ? _("Error deleting remote-tracking branch '%s'") : _("Error deleting branch '%s'"), bname.buf); ret = 1; - continue; + goto next; } if (!quiet) { printf(remote_branch @@ -270,9 +271,12 @@ static int delete_branches(int argc, const char **argv, int force, int kinds, bname.buf, (flags & REF_ISBROKEN) ? "broken" : (flags & REF_ISSYMREF) ? target - : find_unique_abbrev(sha1, DEFAULT_ABBREV)); + : find_unique_abbrev(oid.hash, DEFAULT_ABBREV)); } delete_branch_config(bname.buf); + + next: + free(target); } free(name); @@ -280,424 +284,169 @@ 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, width; - struct commit *commit; - int ignore; -}; - -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; - - dst = resolve_ref_unsafe(src, 0, sha1, &flag); - if (!(dst && (flag & REF_ISSYMREF))) - return NULL; - if (prefix) - skip_prefix(dst, prefix, &dst); - 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) +static int calc_maxwidth(struct ref_array *refs, int remote_bonus) { - if (!*pattern) - return 1; /* no pattern always matches */ - while (*pattern) { - if (!wildmatch(*pattern, refname, 0, NULL)) - return 1; - pattern++; + 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); + if (it->kind == FILTER_REFS_DETACHED_HEAD) { + char *head_desc = get_head_description(); + w = utf8_strwidth(head_desc); + free(head_desc); + } else + w = utf8_strwidth(desc); + + if (it->kind == FILTER_REFS_REMOTES) + w += remote_bonus; + if (w > max) + max = w; } - return 0; + return max; } -static int append_ref(const char *refname, const unsigned char *sha1, int flags, void *cb_data) +static const char *quote_literal_for_format(const char *s) { - 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; - } ref_kind[] = { - { REF_LOCAL_BRANCH, "refs/heads/" }, - { REF_REMOTE_BRANCH, "refs/remotes/" }, - }; - - /* Detect kind */ - for (i = 0; i < ARRAY_SIZE(ref_kind); i++) { - prefix = ref_kind[i].prefix; - if (skip_prefix(refname, prefix, &refname)) { - kind = ref_kind[i].kind; - 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; + static struct strbuf buf = STRBUF_INIT; - 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; + strbuf_reset(&buf); + while (*s) { + const char *ep = strchrnul(s, '%'); + if (s < ep) + strbuf_add(&buf, s, ep - s); + if (*ep == '%') { + strbuf_addstr(&buf, "%%"); + s = ep + 1; + } else { + s = ep; } - - /* 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->width = utf8_strwidth(refname); - newitem->dest = resolve_symref(orig_refname, prefix); - newitem->ignore = 0; - /* adjust for "remotes/" */ - if (newitem->kind == REF_REMOTE_BRANCH && - ref_list->kinds != REF_REMOTE_BRANCH) - newitem->width += 8; - if (newitem->width > ref_list->maxwidth) - ref_list->maxwidth = newitem->width; - - return 0; + return buf.buf; } -static void free_ref_list(struct ref_list *ref_list) +static char *build_format(struct ref_filter *filter, int maxwidth, const char *remote_prefix) { - 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); -} + struct strbuf fmt = STRBUF_INIT; + struct strbuf local = STRBUF_INIT; + struct strbuf remote = STRBUF_INIT; -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); + strbuf_addf(&fmt, "%%(if)%%(HEAD)%%(then)* %s%%(else) %%(end)", + branch_get_color(BRANCH_COLOR_CURRENT)); - if (c1->kind != c2->kind) - return c1->kind - c2->kind; - return strcmp(c1->name, c2->name); -} + if (filter->verbose) { + struct strbuf obname = STRBUF_INIT; -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); - struct strbuf fancy = STRBUF_INIT; - int upstream_is_gone = 0; - int added_decoration = 1; - - switch (stat_tracking_info(branch, &ours, &theirs)) { - case 0: - /* no base */ - return; - case -1: - /* with "gone" base */ - upstream_is_gone = 1; - break; - default: - /* with base */ - break; - } - - if (show_upstream_ref) { - ref = shorten_unambiguous_ref(branch->merge[0]->dst, 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)); + if (filter->abbrev < 0) + strbuf_addf(&obname, "%%(objectname:short)"); + else if (!filter->abbrev) + strbuf_addf(&obname, "%%(objectname)"); else - strbuf_addstr(&fancy, ref); - } + strbuf_addf(&obname, "%%(objectname:short=%d)", filter->abbrev); - 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); + strbuf_addf(&local, "%%(align:%d,left)%%(refname:lstrip=2)%%(end)", maxwidth); + strbuf_addf(&local, "%s", branch_get_color(BRANCH_COLOR_RESET)); + strbuf_addf(&local, " %s ", obname.buf); - } else if (!theirs) { - if (show_upstream_ref) - strbuf_addf(stat, _("[%s: ahead %d]"), fancy.buf, ours); + if (filter->verbose > 1) + strbuf_addf(&local, "%%(if)%%(upstream)%%(then)[%s%%(upstream:short)%s%%(if)%%(upstream:track)" + "%%(then): %%(upstream:track,nobracket)%%(end)] %%(end)%%(contents:subject)", + branch_get_color(BRANCH_COLOR_UPSTREAM), branch_get_color(BRANCH_COLOR_RESET)); else - strbuf_addf(stat, _("[ahead %d]"), ours); + strbuf_addf(&local, "%%(if)%%(upstream:track)%%(then)%%(upstream:track) %%(end)%%(contents:subject)"); + + strbuf_addf(&remote, "%s%%(align:%d,left)%s%%(refname:lstrip=2)%%(end)%s" + "%%(if)%%(symref)%%(then) -> %%(symref:short)" + "%%(else) %s %%(contents:subject)%%(end)", + branch_get_color(BRANCH_COLOR_REMOTE), maxwidth, quote_literal_for_format(remote_prefix), + branch_get_color(BRANCH_COLOR_RESET), obname.buf); + strbuf_release(&obname); } 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) -{ - struct strbuf subject = STRBUF_INIT, stat = STRBUF_INIT; - const char *sub = _(" **** invalid ref ****"); - struct commit *commit = item->commit; - - if (!parse_commit(commit)) { - pp_commit_easy(CMIT_FMT_ONELINE, commit, &subject); - sub = subject.buf; + strbuf_addf(&local, "%%(refname:lstrip=2)%s%%(if)%%(symref)%%(then) -> %%(symref:short)%%(end)", + branch_get_color(BRANCH_COLOR_RESET)); + strbuf_addf(&remote, "%s%s%%(refname:lstrip=2)%s%%(if)%%(symref)%%(then) -> %%(symref:short)%%(end)", + branch_get_color(BRANCH_COLOR_REMOTE), quote_literal_for_format(remote_prefix), + branch_get_color(BRANCH_COLOR_RESET)); } - if (item->kind == REF_LOCAL_BRANCH) - fill_tracking_info(&stat, item->name, verbose > 1); + strbuf_addf(&fmt, "%%(if:notequals=refs/remotes)%%(refname:rstrip=-2)%%(then)%s%%(else)%s%%(end)", local.buf, remote.buf); - strbuf_addf(out, " %s %s%s", - find_unique_abbrev(item->commit->object.sha1, abbrev), - stat.buf, sub); - strbuf_release(&stat); - strbuf_release(&subject); + strbuf_release(&local); + strbuf_release(&remote); + return strbuf_detach(&fmt, NULL); } -static void print_ref_item(struct ref_item *item, int maxwidth, int verbose, - int abbrev, int current, char *prefix) +static void print_ref_list(struct ref_filter *filter, struct ref_sorting *sorting, const char *format) { - char c; - int color; - struct strbuf out = STRBUF_INIT, name = STRBUF_INIT; + int i; + struct ref_array array; + int maxwidth = 0; + const char *remote_prefix = ""; + struct strbuf out = STRBUF_INIT; + char *to_free = NULL; - if (item->ignore) - return; + /* + * 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/"; - switch (item->kind) { - case REF_LOCAL_BRANCH: - color = BRANCH_COLOR_LOCAL; - break; - case REF_REMOTE_BRANCH: - color = BRANCH_COLOR_REMOTE; - break; - default: - color = BRANCH_COLOR_PLAIN; - break; - } + memset(&array, 0, sizeof(array)); - c = ' '; - if (current) { - c = '*'; - color = BRANCH_COLOR_CURRENT; - } + filter_refs(&array, filter, filter->kind | FILTER_REFS_INCLUDE_BROKEN); - strbuf_addf(&name, "%s%s", prefix, item->name); - if (verbose) { - int utf8_compensation = strlen(name.buf) - utf8_strwidth(name.buf); - strbuf_addf(&out, "%c %s%-*s%s", c, branch_get_color(color), - maxwidth + utf8_compensation, name.buf, - branch_get_color(BRANCH_COLOR_RESET)); - } 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) - /* " f7c0c00 [ahead 58, behind 197] vcs-svn: drop obj_pool.h" */ - add_verbose_info(&out, item, verbose, abbrev); - if (column_active(colopts)) { - assert(!verbose && "--column and --verbose are incompatible"); - string_list_append(&output, out.buf); - } else { - printf("%s\n", out.buf); - } - strbuf_release(&name); - strbuf_release(&out); -} + if (filter->verbose) + maxwidth = calc_maxwidth(&array, strlen(remote_prefix)); -static int calc_maxwidth(struct ref_list *refs) -{ - int i, w = 0; - for (i = 0; i < refs->index; i++) { - if (refs->list[i].ignore) - continue; - if (refs->list[i].width > w) - w = refs->list[i].width; - } - return w; -} + if (!format) + format = to_free = build_format(filter, maxwidth, remote_prefix); + verify_ref_format(format); -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) { - /* TRANSLATORS: make sure these match _("HEAD detached at ") - and _("HEAD detached from ") in wt-status.c */ - if (state.detached_at) - strbuf_addf(&desc, _("(HEAD detached at %s)"), - state.detached_from); - else - 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); -} + ref_array_sort(sorting, &array); -static void show_detached(struct ref_list *ref_list) -{ - 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 = get_head_description(); - item.width = utf8_strwidth(item.name); - item.kind = REF_LOCAL_BRANCH; - item.dest = NULL; - item.commit = head_commit; - item.ignore = 0; - if (item.width > ref_list->maxwidth) - ref_list->maxwidth = item.width; - print_ref_item(&item, ref_list->maxwidth, ref_list->verbose, ref_list->abbrev, 1, ""); - free(item.name); + for (i = 0; i < array.nr; i++) { + format_ref_array_item(array.items[i], format, 0, &out); + if (column_active(colopts)) { + assert(!filter->verbose && "--column and --verbose are incompatible"); + /* format to a string_list to let print_columns() do its job */ + string_list_append(&output, out.buf); + } else { + fwrite(out.buf, 1, out.len, stdout); + putchar('\n'); + } + strbuf_release(&out); } + + ref_array_clear(&array); + free(to_free); } -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(0); 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); - if (!filter) - die(_("object '%s' does not point to a commit"), - sha1_to_hex(merge_filter_ref)); - - filter->object.flags |= UNINTERESTING; - add_pending_object(&ref_list.revs, - (struct object *) filter, ""); - ref_list.revs.limited = 1; - - if (prepare_revision_walk(&ref_list.revs)) - die(_("revision walk setup failed")); - - for (i = 0; i < ref_list.index; i++) { - struct ref_item *item = &ref_list.list[i]; - struct commit *commit = item->commit; - int is_merged = !!(commit->object.flags & UNINTERESTING); - item->ignore = is_merged != (merge_filter == SHOW_MERGED); - } - - for (i = 0; i < ref_list.index; i++) { - struct ref_item *item = &ref_list.list[i]; - clear_commit_marks(item->commit, ALL_REV_FLAGS); - } - clear_commit_marks(filter, ALL_REV_FLAGS); - if (verbose) - ref_list.maxwidth = calc_maxwidth(&ref_list); - } + for (i = 0; worktrees[i]; i++) { + struct worktree *wt = worktrees[i]; - 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); - } + 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) @@ -729,20 +478,22 @@ 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); if (rename_ref(oldref.buf, newref.buf, logmsg.buf)) die(_("Branch rename failed")); - strbuf_release(&logmsg); 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, logmsg.buf)) die(_("Branch renamed to %s, but HEAD is not updated!"), newname); + strbuf_release(&logmsg); + strbuf_addf(&oldsection, "branch.%s", oldref.buf + 11); strbuf_release(&oldref); strbuf_addf(&newsection, "branch.%s", newref.buf + 11); @@ -753,26 +504,10 @@ 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 GIT_PATH_FUNC(edit_description, "EDIT_DESCRIPTION") static int edit_branch_description(const char *branch_name) { - FILE *fp; - int status; struct strbuf buf = STRBUF_INIT; struct strbuf name = STRBUF_INIT; @@ -780,73 +515,61 @@ static int edit_branch_description(const char *branch_name) if (!buf.len || buf.buf[buf.len-1] != '\n') strbuf_addch(&buf, '\n'); strbuf_commented_addf(&buf, - "Please edit the description for the branch\n" - " %s\n" - "Lines starting with '%c' will be stripped.\n", + _("Please edit the description for the branch\n" + " %s\n" + "Lines starting with '%c' will be stripped.\n"), branch_name, comment_line_char); - fp = fopen(git_path(edit_description), "w"); - if ((fwrite(buf.buf, 1, buf.len, fp) < buf.len) || fclose(fp)) { - strbuf_release(&buf); - return error(_("could not write branch description template: %s"), - strerror(errno)); - } + write_file_buf(edit_description(), buf.buf, buf.len); strbuf_reset(&buf); - if (launch_editor(git_path(edit_description), &buf, NULL)) { + if (launch_editor(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.len ? buf.buf : NULL); + 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 = 0, list = 0; - int verbose = 0, abbrev = -1, detached = 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; + int icase = 0; + static struct ref_sorting *sorting = NULL, **sorting_tail = &sorting; + const char *format = NULL; struct option options[] = { OPT_GROUP(N_("Generic options")), - OPT__VERBOSE(&verbose, + 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, N_("change upstream info"), BRANCH_TRACK_OVERRIDE), - OPT_STRING('u', "set-upstream-to", &new_upstream, "upstream", "change the upstream info"), - OPT_BOOL(0, "unset-upstream", &unset_upstream, "Unset the upstream info"), + OPT_STRING('u', "set-upstream-to", &new_upstream, N_("upstream"), N_("change the upstream info")), + OPT_BOOL(0, "unset-upstream", &unset_upstream, N_("Unset the upstream info")), OPT__COLOR(&branch_use_color, N_("use colored output")), - OPT_SET_INT('r', "remotes", &kinds, N_("act on remote-tracking branches"), - REF_REMOTE_BRANCH), - { - OPTION_CALLBACK, 0, "contains", &with_commit, N_("commit"), - N_("print only branches that contain the commit"), - PARSE_OPT_LASTARG_DEFAULT, - parse_opt_with_commit, (intptr_t)"HEAD", - }, - { - OPTION_CALLBACK, 0, "with", &with_commit, N_("commit"), - N_("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_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_NO_CONTAINS(&filter.no_commit, N_("print only branches that don't contain the commit")), + OPT_WITH(&filter.with_commit, N_("print only branches that contain the commit")), + OPT_WITHOUT(&filter.no_commit, N_("print only branches that don't contain the commit")), + OPT__ABBREV(&filter.abbrev), OPT_GROUP(N_("Specific git-branch actions:")), - OPT_SET_INT('a', "all", &kinds, N_("list both remote-tracking and local branches"), - REF_REMOTE_BRANCH | REF_LOCAL_BRANCH), + 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), @@ -856,22 +579,26 @@ int cmd_branch(int argc, const char **argv, const char *prefix) 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, - N_("commit"), N_("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, - N_("commit"), N_("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_COLUMN(0, "column", &colopts, N_("list branches in columns")), + OPT_BOOL('i', "ignore-case", &icase, N_("sorting and filtering are case insensitive")), + OPT_STRING( 0 , "format", &format, N_("format"), N_("format to use for the output")), OPT_END(), }; + setup_ref_filter_porcelain_msg(); + + 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); @@ -879,15 +606,13 @@ int cmd_branch(int argc, const char **argv, const char *prefix) track = git_branch_track; - head = resolve_refdup("HEAD", 0, head_sha1, NULL); + head = resolve_refdup("HEAD", 0, head_oid.hash, NULL); if (!head) die(_("Failed to resolve HEAD as a valid ref.")); if (!strcmp(head, "HEAD")) - detached = 1; + filter.detached = 1; else if (!skip_prefix(head, "refs/heads/", &head)) die(_("HEAD not found below refs/heads!")); - hashcpy(merge_filter_ref, head_sha1); - argc = parse_options(argc, argv, prefix, options, builtin_branch_usage, 0); @@ -895,17 +620,20 @@ int cmd_branch(int argc, const char **argv, const char *prefix) if (!delete && !rename && !edit_description && !new_upstream && !unset_upstream && argc == 0) list = 1; - if (with_commit || merge_filter != NO_FILTER) + if (filter.with_commit || filter.merge != REF_FILTER_MERGED_NONE || filter.points_at.nr || + filter.no_commit) 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; + filter.ignore_case = icase; + finalize_colopts(&colopts, -1); - if (verbose) { + if (filter.verbose) { if (explicitly_enable_column(colopts)) die(_("--column and --verbose are incompatible")); colopts = 0; @@ -919,20 +647,33 @@ int cmd_branch(int argc, const char **argv, const char *prefix) if (delete) { if (!argc) die(_("branch name required")); - return delete_branches(argc, argv, delete > 1, kinds, quiet); + return delete_branches(argc, argv, delete > 1, filter.kind, quiet); } else if (list) { - int ret = print_ref_list(kinds, detached, verbose, abbrev, - with_commit, argv); + /* 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; + /* + * 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(); + sorting->ignore_case = icase; + print_ref_list(&filter, sorting, format); print_columns(&output, colopts, NULL); string_list_clear(&output, 0); - return ret; + return 0; } else if (edit_description) { const char *branch_name; struct strbuf branch_ref = STRBUF_INIT; if (!argc) { - if (detached) + if (filter.detached) die(_("Cannot give description to detached HEAD")); branch_name = head; } else if (argc == 1) @@ -985,7 +726,7 @@ int cmd_branch(int argc, const char **argv, const char *prefix) * 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); + create_branch(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; @@ -1020,7 +761,7 @@ int cmd_branch(int argc, const char **argv, const char *prefix) if (!branch) die(_("no such branch '%s'"), argv[0]); - if (kinds != REF_LOCAL_BRANCH) + 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) @@ -1031,7 +772,7 @@ int cmd_branch(int argc, const char **argv, const char *prefix) strbuf_release(&buf); branch_existed = ref_exists(branch->refname); - create_branch(head, argv[0], (argc == 2) ? argv[1] : head, + create_branch(argv[0], (argc == 2) ? argv[1] : head, force, reflog, 0, quiet, track); /* @@ -1042,8 +783,8 @@ int cmd_branch(int argc, const char **argv, const char *prefix) 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); + fprintf(stderr, " git branch -d %s\n", branch->name); + fprintf(stderr, " git branch --set-upstream-to %s\n", branch->name); } } else diff --git a/builtin/bundle.c b/builtin/bundle.c index 4883a435a9..d0de59b94f 100644 --- a/builtin/bundle.c +++ b/builtin/bundle.c @@ -20,21 +20,15 @@ int cmd_bundle(int argc, const char **argv, const char *prefix) struct bundle_header header; const char *cmd, *bundle_file; int bundle_fd = -1; - char buffer[PATH_MAX]; if (argc < 3) usage(builtin_bundle_usage); cmd = argv[1]; - bundle_file = argv[2]; + bundle_file = prefix_filename(prefix, argv[2]); argc -= 2; argv += 2; - if (prefix && bundle_file[0] != '/') { - snprintf(buffer, sizeof(buffer), "%s/%s", prefix, bundle_file); - bundle_file = buffer; - } - memset(&header, 0, sizeof(header)); if (strcmp(cmd, "create") && (bundle_fd = read_bundle_header(bundle_file, &header)) < 0) diff --git a/builtin/cat-file.c b/builtin/cat-file.c index df99df4db1..4bffd7a2d8 100644 --- a/builtin/cat-file.c +++ b/builtin/cat-file.c @@ -5,52 +5,115 @@ */ #include "cache.h" #include "builtin.h" +#include "diff.h" #include "parse-options.h" #include "userdiff.h" #include "streaming.h" +#include "tree-walk.h" +#include "sha1-array.h" -static int cat_one_file(int opt, const char *exp_type, const char *obj_name) +struct batch_options { + int enabled; + int follow_symlinks; + int print_contents; + int buffer_output; + int all_objects; + int cmdmode; /* may be 'w' or 'c' for --filters or --textconv */ + const char *format; +}; + +static const char *force_path; + +static int filter_object(const char *path, unsigned mode, + const struct object_id *oid, + char **buf, unsigned long *size) +{ + enum object_type type; + + *buf = read_sha1_file(oid->hash, &type, size); + if (!*buf) + return error(_("cannot read object %s '%s'"), + oid_to_hex(oid), path); + if ((type == OBJ_BLOB) && S_ISREG(mode)) { + struct strbuf strbuf = STRBUF_INIT; + if (convert_to_working_tree(path, *buf, *size, &strbuf)) { + free(*buf); + *size = strbuf.len; + *buf = strbuf_detach(&strbuf, NULL); + } + } + + return 0; +} + +static int cat_one_file(int opt, const char *exp_type, const char *obj_name, + int unknown_type) { - unsigned char sha1[20]; + struct object_id oid; enum object_type type; char *buf; unsigned long size; struct object_context obj_context; + struct object_info oi = OBJECT_INFO_INIT; + struct strbuf sb = STRBUF_INIT; + unsigned flags = LOOKUP_REPLACE_OBJECT; + const char *path = force_path; + + if (unknown_type) + flags |= LOOKUP_UNKNOWN_OBJECT; - if (get_sha1_with_context(obj_name, 0, sha1, &obj_context)) + if (get_sha1_with_context(obj_name, GET_SHA1_RECORD_PATH, + oid.hash, &obj_context)) die("Not a valid object name %s", obj_name); + if (!path) + path = obj_context.path; + if (obj_context.mode == S_IFINVALID) + obj_context.mode = 0100644; + 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(oid.hash, &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(oid.hash, &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); + return !has_object_file(&oid); + + case 'w': + if (!path[0]) + die("git cat-file --filters %s: <object> must be " + "<sha1:path>", obj_name); + + if (filter_object(path, obj_context.mode, + &oid, &buf, &size)) + return -1; + break; case 'c': - if (!obj_context.path[0]) + if (!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)) + if (textconv_object(path, obj_context.mode, &oid, 1, &buf, &size)) break; case 'p': - type = sha1_object_info(sha1, NULL); + type = sha1_object_info(oid.hash, NULL); if (type < 0) die("Not a valid object name %s", obj_name); @@ -63,8 +126,8 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name) } if (type == OBJ_BLOB) - return stream_blob_to_fd(1, sha1, NULL, 0); - buf = read_sha1_file(sha1, &type, &size); + return stream_blob_to_fd(1, &oid, NULL, 0); + buf = read_sha1_file(oid.hash, &type, &size); if (!buf) die("Cannot read object %s", obj_name); @@ -73,19 +136,19 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name) 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); + struct object_id blob_oid; + if (sha1_object_info(oid.hash, NULL) == OBJ_TAG) { + char *buffer = read_sha1_file(oid.hash, &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)); + get_oid_hex(target, &blob_oid)) + die("%s not a valid tag", oid_to_hex(&oid)); free(buffer); } else - hashcpy(blob_sha1, sha1); + oidcpy(&blob_oid, &oid); - if (sha1_object_info(blob_sha1, NULL) == OBJ_BLOB) - return stream_blob_to_fd(1, blob_sha1, NULL, 0); + if (sha1_object_info(blob_oid.hash, NULL) == OBJ_BLOB) + return stream_blob_to_fd(1, &blob_oid, NULL, 0); /* * we attempted to dereference a tag to a blob * and failed; there may be new dereference @@ -93,7 +156,7 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name) * fall-back to the usual case. */ } - buf = read_object_with_reference(sha1, exp_type, &size, NULL); + buf = read_object_with_reference(oid.hash, exp_type, &size, NULL); break; default: @@ -104,16 +167,18 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name) die("git cat-file %s: bad file", obj_name); write_or_die(1, buf, size); + free(buf); + free(obj_context.path); return 0; } struct expand_data { - unsigned char sha1[20]; + struct object_id oid; enum object_type type; unsigned long size; - unsigned long disk_size; + off_t disk_size; const char *rest; - unsigned char delta_base_sha1[20]; + struct object_id delta_base_oid; /* * If mark_query is true, we do not expand anything, but rather @@ -134,6 +199,13 @@ struct expand_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) @@ -149,7 +221,7 @@ static void expand_atom(struct strbuf *sb, const char *atom, int len, if (is_atom("objectname", atom, len)) { if (!data->mark_query) - strbuf_addstr(sb, sha1_to_hex(data->sha1)); + strbuf_addstr(sb, oid_to_hex(&data->oid)); } else if (is_atom("objecttype", atom, len)) { if (data->mark_query) data->info.typep = &data->type; @@ -164,7 +236,7 @@ static void expand_atom(struct strbuf *sb, const char *atom, int len, if (data->mark_query) data->info.disk_sizep = &data->disk_size; else - strbuf_addf(sb, "%lu", data->disk_size); + strbuf_addf(sb, "%"PRIuMAX, (uintmax_t)data->disk_size); } else if (is_atom("rest", atom, len)) { if (data->mark_query) data->split_on_whitespace = 1; @@ -172,9 +244,10 @@ static void expand_atom(struct strbuf *sb, const char *atom, int len, 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; + data->info.delta_base_sha1 = data->delta_base_oid.hash; else - strbuf_addstr(sb, sha1_to_hex(data->delta_base_sha1)); + strbuf_addstr(sb, + oid_to_hex(&data->delta_base_oid)); } else die("unknown format element: %.*s", len, atom); } @@ -194,69 +267,166 @@ static size_t expand_format(struct strbuf *sb, const char *start, void *data) return end - start + 1; } -static void print_object_or_die(int fd, struct expand_data *data) +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; + const struct object_id *oid = &data->oid; assert(data->info.typep); if (data->type == OBJ_BLOB) { - if (stream_blob_to_fd(fd, sha1, NULL, 0) < 0) - die("unable to stream %s to stdout", sha1_to_hex(sha1)); + if (opt->buffer_output) + fflush(stdout); + if (opt->cmdmode) { + char *contents; + unsigned long size; + + if (!data->rest) + die("missing path for '%s'", oid_to_hex(oid)); + + if (opt->cmdmode == 'w') { + if (filter_object(data->rest, 0100644, oid, + &contents, &size)) + die("could not convert '%s' %s", + oid_to_hex(oid), data->rest); + } else if (opt->cmdmode == 'c') { + enum object_type type; + if (!textconv_object(data->rest, 0100644, oid, + 1, &contents, &size)) + contents = read_sha1_file(oid->hash, &type, + &size); + if (!contents) + die("could not convert '%s' %s", + oid_to_hex(oid), data->rest); + } else + die("BUG: invalid cmdmode: %c", opt->cmdmode); + batch_write(opt, contents, size); + free(contents); + } else if (stream_blob_to_fd(1, oid, NULL, 0) < 0) + die("unable to stream %s to stdout", oid_to_hex(oid)); } else { enum object_type type; unsigned long size; void *contents; - contents = read_sha1_file(sha1, &type, &size); + contents = read_sha1_file(oid->hash, &type, &size); if (!contents) - die("object %s disappeared", sha1_to_hex(sha1)); + die("object %s disappeared", oid_to_hex(oid)); if (type != data->type) - die("object %s changed type!?", sha1_to_hex(sha1)); + die("object %s changed type!?", oid_to_hex(oid)); if (data->info.sizep && size != data->size) - die("object %s changed size!?", sha1_to_hex(sha1)); + die("object %s changed size!?", oid_to_hex(oid)); - write_or_die(fd, contents, size); + batch_write(opt, contents, size); free(contents); } } -struct batch_options { - int enabled; - int print_contents; - const char *format; -}; - -static int batch_one_object(const char *obj_name, struct batch_options *opt, - struct expand_data *data) +static void batch_object_write(const char *obj_name, struct batch_options *opt, + struct expand_data *data) { struct strbuf buf = STRBUF_INIT; - if (!obj_name) - return 1; - - if (get_sha1(obj_name, data->sha1)) { - printf("%s missing\n", obj_name); - fflush(stdout); - return 0; - } - - if (sha1_object_info_extended(data->sha1, &data->info, LOOKUP_REPLACE_OBJECT) < 0) { - printf("%s missing\n", obj_name); + if (!data->skip_object_info && + sha1_object_info_extended(data->oid.hash, &data->info, LOOKUP_REPLACE_OBJECT) < 0) { + printf("%s missing\n", + obj_name ? obj_name : oid_to_hex(&data->oid)); fflush(stdout); - return 0; + return; } strbuf_expand(&buf, opt->format, expand_format, data); strbuf_addch(&buf, '\n'); - write_or_die(1, buf.buf, buf.len); + batch_write(opt, buf.buf, buf.len); strbuf_release(&buf); if (opt->print_contents) { - print_object_or_die(1, data); - write_or_die(1, "\n", 1); + 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->oid.hash, &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); + 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 int batch_object_cb(const struct object_id *oid, void *vdata) +{ + struct object_cb_data *data = vdata; + oidcpy(&data->expand->oid, oid); + batch_object_write(NULL, data->opt, data->expand); + return 0; +} + +static int batch_loose_object(const struct object_id *oid, + const char *path, + void *data) +{ + oid_array_append(data, oid); + return 0; +} + +static int batch_packed_object(const struct object_id *oid, + struct packed_git *pack, + uint32_t pos, + void *data) +{ + oid_array_append(data, oid); return 0; } @@ -279,6 +449,14 @@ static int batch_objects(struct batch_options *opt) data.mark_query = 1; strbuf_expand(&buf, opt->format, expand_format, &data); data.mark_query = 0; + if (opt->cmdmode) + data.split_on_whitespace = 1; + + if (opt->all_objects) { + struct object_info empty = OBJECT_INFO_INIT; + if (!memcmp(&data.info, &empty, sizeof(empty))) + data.skip_object_info = 1; + } /* * If we are printing out the object, then always fill in the type, @@ -287,6 +465,21 @@ static int batch_objects(struct batch_options *opt) if (opt->print_contents) data.info.typep = &data.type; + if (opt->all_objects) { + struct oid_array sa = OID_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; + oid_array_for_each_unique(&sa, batch_object_cb, &cb); + + oid_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 @@ -297,7 +490,7 @@ static int batch_objects(struct batch_options *opt) save_warning = warn_on_object_refname_ambiguity; warn_on_object_refname_ambiguity = 0; - while (strbuf_getline(&buf, stdin, '\n') != EOF) { + while (strbuf_getline(&buf, stdin) != EOF) { if (data.split_on_whitespace) { /* * Split at first whitespace, tying off the beginning @@ -312,9 +505,7 @@ static int batch_objects(struct batch_options *opt) data.rest = p; } - retval = batch_one_object(buf.buf, opt, &data); - if (retval) - break; + batch_one_object(buf.buf, opt, &data); } strbuf_release(&buf); @@ -323,8 +514,8 @@ static int batch_objects(struct batch_options *opt) } static const char * const cat_file_usage[] = { - N_("git cat-file (-t | -s | -e | -p | <type> | --textconv) <object>"), - N_("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 | --filters) [--path=<path>] <object>"), + N_("git cat-file (--batch | --batch-check) [--follow-symlinks] [--textconv | --filters]"), NULL }; @@ -342,9 +533,8 @@ static int batch_option_callback(const struct option *opt, { struct batch_options *bo = opt->value; - if (unset) { - memset(bo, 0, sizeof(*bo)); - return 0; + if (bo->enabled) { + return 1; } bo->enabled = 1; @@ -359,34 +549,46 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix) 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(N_("<type> can be one of: blob, tree, commit, tag")), - OPT_SET_INT('t', NULL, &opt, N_("show object type"), 't'), - OPT_SET_INT('s', NULL, &opt, N_("show object size"), 's'), - OPT_SET_INT('e', NULL, &opt, + 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_SET_INT('p', NULL, &opt, N_("pretty-print object's content"), 'p'), - OPT_SET_INT(0, "textconv", &opt, + 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_CMDMODE(0, "filters", &opt, + N_("for blob objects, run filters on object's content"), 'w'), + OPT_STRING(0, "path", &force_path, N_("blob"), + N_("use a specific path for --textconv/--filters")), + 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) { - if (argc == 1) + if (batch.enabled && (opt == 'c' || opt == 'w')) + batch.cmdmode = opt; + else if (argc == 1) obj_name = argv[0]; else usage_with_options(cat_file_usage, options); @@ -398,12 +600,35 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix) } else usage_with_options(cat_file_usage, options); } - if (batch.enabled && (opt || argc)) { + if (batch.enabled) { + if (batch.cmdmode != opt || argc) + usage_with_options(cat_file_usage, options); + if (batch.cmdmode && batch.all_objects) + die("--batch-all-objects cannot be combined with " + "--textconv nor with --filters"); + } + + if ((batch.follow_symlinks || batch.all_objects) && !batch.enabled) { usage_with_options(cat_file_usage, options); } + if (force_path && opt != 'c' && opt != 'w') { + error("--path=<path> needs --textconv or --filters"); + usage_with_options(cat_file_usage, options); + } + + if (force_path && batch.enabled) { + error("--path=<path> incompatible with --batch"); + 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 21d2bedcc9..4d01ca0c8b 100644 --- a/builtin/check-attr.c +++ b/builtin/check-attr.c @@ -9,7 +9,7 @@ static int cached_attrs; static int stdin_paths; static const char * const check_attr_usage[] = { N_("git check-attr [-a | --all | <attr>...] [--] <pathname>..."), -N_("git check-attr --stdin [-z] [-a | --all | <attr>...] < <list-of-paths>"), +N_("git check-attr --stdin [-z] [-a | --all | <attr>...]"), NULL }; @@ -24,12 +24,13 @@ static const struct option check_attr_options[] = { OPT_END() }; -static void output_attr(int cnt, struct git_attr_check *check, - const char *file) +static void output_attr(struct attr_check *check, const char *file) { int j; + int cnt = check->nr; + for (j = 0; j < cnt; j++) { - const char *value = check[j].value; + const char *value = check->items[j].value; if (ATTR_TRUE(value)) value = "set"; @@ -42,53 +43,56 @@ static void output_attr(int cnt, struct git_attr_check *check, printf("%s%c" /* path */ "%s%c" /* attrname */ "%s%c" /* attrvalue */, - file, 0, git_attr_name(check[j].attr), 0, value, 0); + file, 0, + git_attr_name(check->items[j].attr), 0, value, 0); } else { quote_c_style(file, NULL, stdout, 0); - printf(": %s: %s\n", git_attr_name(check[j].attr), value); + printf(": %s: %s\n", + git_attr_name(check->items[j].attr), value); } - } } -static void check_attr(const char *prefix, int cnt, - struct git_attr_check *check, const char *file) +static void check_attr(const char *prefix, + struct attr_check *check, + int collect_all, + const char *file) { char *full_path = prefix_path(prefix, prefix ? strlen(prefix) : 0, file); - if (check != NULL) { - if (git_check_attr(full_path, cnt, check)) - die("git_check_attr died"); - output_attr(cnt, check, file); + + if (collect_all) { + git_all_attrs(full_path, check); } else { - if (git_all_attrs(full_path, &cnt, &check)) - die("git_all_attrs died"); - output_attr(cnt, check, file); - free(check); + if (git_check_attr(full_path, check)) + die("git_check_attr died"); } + output_attr(check, file); + free(full_path); } -static void check_attr_stdin_paths(const char *prefix, int cnt, - struct git_attr_check *check) +static void check_attr_stdin_paths(const char *prefix, + struct attr_check *check, + int collect_all) { - struct strbuf buf, nbuf; - int line_termination = nul_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); + check_attr(prefix, check, collect_all, 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) @@ -99,7 +103,7 @@ static NORETURN void error_with_usage(const char *msg) int cmd_check_attr(int argc, const char **argv, const char *prefix) { - struct git_attr_check *check; + struct attr_check *check; int cnt, i, doubledash, filei; if (!is_bare_repository()) @@ -159,28 +163,26 @@ int cmd_check_attr(int argc, const char **argv, const char *prefix) error_with_usage("No file specified"); } - if (all_attrs) { - check = NULL; - } else { - check = xcalloc(cnt, sizeof(*check)); + check = attr_check_alloc(); + if (!all_attrs) { for (i = 0; i < cnt; i++) { - const char *name; - struct git_attr *a; - name = argv[i]; - a = git_attr(name); + const struct git_attr *a = git_attr(argv[i]); + if (!a) return error("%s: not a valid attribute name", - name); - check[i].attr = a; + argv[i]); + attr_check_append(check, a); } } if (stdin_paths) - check_attr_stdin_paths(prefix, cnt, check); + check_attr_stdin_paths(prefix, check, all_attrs); else { for (i = filei; i < argc; i++) - check_attr(prefix, cnt, check, argv[i]); + check_attr(prefix, check, all_attrs, argv[i]); maybe_flush_or_die(stdout, "attribute to stdout"); } + + attr_check_free(check); return 0; } diff --git a/builtin/check-ignore.c b/builtin/check-ignore.c index dc8d97c56c..c7b8c08897 100644 --- a/builtin/check-ignore.c +++ b/builtin/check-ignore.c @@ -4,11 +4,12 @@ #include "quote.h" #include "pathspec.h" #include "parse-options.h" +#include "submodule.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 < <list-of-paths>", +"git check-ignore [<options>] --stdin", NULL }; @@ -87,21 +88,23 @@ static int check_ignore(struct dir_struct *dir, parse_pathspec(&pathspec, PATHSPEC_ALL_MAGIC & ~PATHSPEC_FROMTOP, PATHSPEC_SYMLINK_LEADING_PATH | - PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE | PATHSPEC_KEEP_ORDER, prefix, argv); + die_path_inside_submodule(&the_index, &pathspec); + /* * 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); + seen = find_pathspecs_matching_against_index(&pathspec, &the_index); 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); + exclude = last_exclude_matching(dir, &the_index, + full_path, &dtype); } if (!quiet && (exclude || show_non_matching)) output_exclude(pathspec.items[i].original, exclude); @@ -115,19 +118,19 @@ static int check_ignore(struct dir_struct *dir, static int check_ignore_stdin_paths(struct dir_struct *dir, const char *prefix) { - struct strbuf buf, nbuf; + struct strbuf buf = STRBUF_INIT; + struct strbuf unquoted = STRBUF_INIT; char *pathspec[2] = { NULL, NULL }; - int line_termination = nul_term_line ? 0 : '\n'; + strbuf_getline_fn getline_fn; int num_ignored = 0; - 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)) + 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); } pathspec[0] = buf.buf; num_ignored += check_ignore(dir, prefix, @@ -135,7 +138,7 @@ static int check_ignore_stdin_paths(struct dir_struct *dir, const char *prefix) maybe_flush_or_die(stdout, "check-ignore to stdout"); } strbuf_release(&buf); - strbuf_release(&nbuf); + strbuf_release(&unquoted); return num_ignored; } diff --git a/builtin/check-mailmap.c b/builtin/check-mailmap.c index eaaea546d3..cf0f54f6b9 100644 --- a/builtin/check-mailmap.c +++ b/builtin/check-mailmap.c @@ -54,7 +54,7 @@ int cmd_check_mailmap(int argc, const char **argv, const char *prefix) if (use_stdin) { struct strbuf buf = STRBUF_INIT; - while (strbuf_getline(&buf, stdin, '\n') != EOF) { + while (strbuf_getline_lf(&buf, stdin) != EOF) { check_mailmap(&mailmap, buf.buf); maybe_flush_or_die(stdout, "stdout"); } diff --git a/builtin/check-ref-format.c b/builtin/check-ref-format.c index fd915d5984..eac499450f 100644 --- a/builtin/check-ref-format.c +++ b/builtin/check-ref-format.c @@ -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 9ca2da1583..07631d0c9c 100644 --- a/builtin/checkout-index.c +++ b/builtin/checkout-index.c @@ -11,12 +11,12 @@ #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][TEMPORARY_FILENAME_LENGTH + 1]; -static struct checkout state; +static struct checkout state = CHECKOUT_INIT; static void write_tempfile_record(const char *name, const char *prefix) { @@ -35,7 +35,8 @@ static void write_tempfile_record(const char *name, const char *prefix) fputs(topath[checkout_stage], stdout); putchar('\t'); - write_name_quoted_relative(name, prefix, 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; @@ -129,36 +130,6 @@ static const char * const builtin_checkout_index_usage[] = { 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; - state.istate = &the_index; - 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) { @@ -170,7 +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; } @@ -183,6 +154,7 @@ 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_BOOL('a', "all", &all, N_("check out all files in the index")), @@ -191,22 +163,19 @@ int cmd_checkout_index(int argc, const char **argv, const char *prefix) N_("no warning for existing files and files not in index")), OPT_BOOL('n', "no-create", ¬_new, N_("don't checkout new files")), - { OPTION_CALLBACK, 'u', "index", &newfd, NULL, - N_("update stat information in the index file"), - PARSE_OPT_NOARG, option_parse_u }, - { OPTION_CALLBACK, 'z', NULL, NULL, NULL, - N_("paths are separated with NUL character"), - PARSE_OPT_NOARG, option_parse_z }, + 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_CALLBACK(0, "prefix", NULL, N_("string"), - N_("when creating files, prepend <string>"), - option_parse_prefix), - OPT_CALLBACK(0, "stage", NULL, NULL, + 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"), - option_parse_stage), + PARSE_OPT_NONEG, option_parse_stage }, OPT_END() }; @@ -214,7 +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) { @@ -227,21 +195,23 @@ 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, LOCK_DIE_ON_ERROR); } /* 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"); @@ -249,30 +219,31 @@ int cmd_checkout_index(int argc, const char **argv, const char *prefix) die("git checkout-index: don't mix '--stdin' and explicit filenames"); p = prefix_path(prefix, prefix_length, arg); checkout_file(p, prefix); - if (p < arg || p > arg + strlen(arg)) - free((char *)p); + 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); - if (p < buf.buf || p > buf.buf + buf.len) - free((char *)p); + free(p); } - strbuf_release(&nbuf); + strbuf_release(&unquoted); strbuf_release(&buf); } diff --git a/builtin/checkout.c b/builtin/checkout.c index 3e141fc149..1624eed7e7 100644 --- a/builtin/checkout.c +++ b/builtin/checkout.c @@ -18,8 +18,8 @@ #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[] = { N_("git checkout [<options>] <branch>"), @@ -36,6 +36,8 @@ struct checkout_opts { int writeout_stage; int overwrite_ignore; int ignore_skipworktree; + int ignore_other_worktrees; + int show_progress; const char *new_branch; const char *new_branch_force; @@ -54,8 +56,8 @@ static int post_checkout_hook(struct commit *old, struct commit *new, int changed) { return run_hook_le(NULL, "post-checkout", - sha1_to_hex(old ? old->object.sha1 : null_sha1), - sha1_to_hex(new ? new->object.sha1 : null_sha1), + oid_to_hex(old ? &old->object.oid : &null_oid), + oid_to_hex(new ? &new->object.oid : &null_oid), changed ? "1" : "0", NULL); /* "new" can be NULL when checking out from the index before a commit exists. */ @@ -74,7 +76,7 @@ static int update_some(const unsigned char *sha1, struct strbuf *base, len = base->len + strlen(pathname); ce = xcalloc(1, cache_entry_size(len)); - hashcpy(ce->sha1, sha1); + hashcpy(ce->oid.hash, sha1); 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; @@ -90,7 +92,7 @@ static int update_some(const unsigned char *sha1, struct strbuf *base, if (pos >= 0) { struct cache_entry *old = active_cache[pos]; if (ce->ce_mode == old->ce_mode && - !hashcmp(ce->sha1, old->sha1)) { + !oidcmp(&ce->oid, &old->oid)) { old->ce_flags |= CE_UPDATE; free(ce); return 0; @@ -152,8 +154,8 @@ static int check_stages(unsigned stages, const struct cache_entry *ce, int pos) return 0; } -static int checkout_stage(int stage, struct cache_entry *ce, int pos, - struct checkout *state) +static int checkout_stage(int stage, const struct cache_entry *ce, int pos, + const struct checkout *state) { while (pos < active_nr && !strcmp(active_cache[pos]->name, ce->name)) { @@ -167,15 +169,15 @@ static int checkout_stage(int stage, struct cache_entry *ce, int pos, return error(_("path '%s' does not have their version"), ce->name); } -static int checkout_merged(int pos, struct checkout *state) +static int checkout_merged(int pos, const struct checkout *state) { struct cache_entry *ce = active_cache[pos]; const char *path = ce->name; mmfile_t ancestor, ours, theirs; int status; - unsigned char sha1[20]; + struct object_id oid; mmbuffer_t result_buf; - unsigned char threeway[3][20]; + struct object_id threeway[3]; unsigned mode = 0; memset(threeway, 0, sizeof(threeway)); @@ -184,18 +186,18 @@ static int checkout_merged(int pos, struct checkout *state) stage = ce_stage(ce); if (!stage || strcmp(path, ce->name)) break; - hashcpy(threeway[stage - 1], ce->sha1); + oidcpy(&threeway[stage - 1], &ce->oid); if (stage == 2) mode = create_ce_mode(ce->ce_mode); pos++; ce = active_cache[pos]; } - if (is_null_sha1(threeway[1]) || is_null_sha1(threeway[2])) + if (is_null_oid(&threeway[1]) || is_null_oid(&threeway[2])) return error(_("path '%s' does not have necessary versions"), path); - read_mmblob(&ancestor, threeway[0]); - read_mmblob(&ours, threeway[1]); - read_mmblob(&theirs, threeway[2]); + read_mmblob(&ancestor, &threeway[0]); + read_mmblob(&ours, &threeway[1]); + read_mmblob(&theirs, &threeway[2]); /* * NEEDSWORK: re-create conflicts from merges with @@ -214,22 +216,24 @@ static int checkout_merged(int pos, struct checkout *state) /* * NEEDSWORK: * There is absolutely no reason to write this as a blob object - * and create a phony cache entry just to leak. This hack is - * primarily to get to the write_entry() machinery that massages - * the contents to work-tree format and writes out which only - * allows it for a cache entry. The code in write_entry() needs - * to be refactored to allow us to feed a <buffer, size, mode> - * instead of a cache entry. Such a refactoring would help - * merge_recursive as well (it also writes the merge result to the - * object database even when it may contain conflicts). + * and create a phony cache entry. This hack is primarily to get + * to the write_entry() machinery that massages the contents to + * work-tree format and writes out which only allows it for a + * cache entry. The code in write_entry() needs to be refactored + * to allow us to feed a <buffer, size, mode> instead of a cache + * entry. Such a refactoring would help merge_recursive as well + * (it also writes the merge result to the object database even + * when it may contain conflicts). */ if (write_sha1_file(result_buf.ptr, result_buf.size, - blob_type, sha1)) + blob_type, oid.hash)) die(_("Unable to add merge result for '%s'"), path); - ce = make_cache_entry(mode, sha1, path, 2, 0); + free(result_buf.ptr); + ce = make_cache_entry(mode, oid.hash, path, 2, 0); if (!ce) die(_("make_cache_entry failed for path '%s'"), path); status = checkout_entry(ce, state, NULL); + free(ce); return status; } @@ -237,10 +241,9 @@ static int checkout_paths(const struct checkout_opts *opts, const char *revision) { int pos; - struct checkout state; + struct checkout state = CHECKOUT_INIT; static char *ps_matched; - unsigned char rev[20]; - int flag; + struct object_id rev; struct commit *head; int errs = 0; struct lock_file *lock_file; @@ -273,14 +276,14 @@ static int checkout_paths(const struct checkout_opts *opts, lock_file = xcalloc(1, sizeof(struct lock_file)); - hold_locked_index(lock_file, 1); + hold_locked_index(lock_file, LOCK_DIE_ON_ERROR); if (read_cache_preload(&opts->pathspec) < 0) - return error(_("corrupt index file")); + return error(_("index file corrupt")); if (opts->source_tree) read_tree_some(opts->source_tree, &opts->pathspec); - ps_matched = xcalloc(1, opts->pathspec.nr); + ps_matched = xcalloc(opts->pathspec.nr, 1); /* * Make sure all pathspecs participated in locating the paths @@ -351,7 +354,6 @@ static int checkout_paths(const struct checkout_opts *opts, return 1; /* Now we are committed to check them out */ - memset(&state, 0, sizeof(state)); state.force = 1; state.refresh_cache = 1; state.istate = &the_index; @@ -373,8 +375,8 @@ static int checkout_paths(const struct checkout_opts *opts, if (write_locked_index(&the_index, lock_file, COMMIT_LOCK)) die(_("unable to write new index file")); - read_ref_full("HEAD", 0, rev, &flag); - head = lookup_commit_reference_gently(rev, 1); + read_ref_full("HEAD", 0, rev.hash, NULL); + head = lookup_commit_reference_gently(&rev, 1); errs |= post_checkout_hook(head, head, 0); return errs; @@ -399,7 +401,7 @@ static void describe_detached_head(const char *msg, struct commit *commit) 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); } @@ -416,7 +418,7 @@ static int reset_tree(struct tree *tree, const struct checkout_opts *o, opts.reset = 1; opts.merge = 1; opts.fn = oneway_merge; - opts.verbose_update = !o->quiet && isatty(2); + opts.verbose_update = o->show_progress; opts.src_index = &the_index; opts.dst_index = &the_index; parse_tree(tree); @@ -441,13 +443,18 @@ 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) { struct strbuf buf = STRBUF_INIT; - strbuf_branchname(&buf, branch->name); + strbuf_branchname(&buf, branch->name, INTERPRET_BRANCH_LOCAL); if (strcmp(buf.buf, branch->name)) branch->name = xstrdup(buf.buf); strbuf_splice(&buf, 0, 0, "refs/heads/", 11); @@ -462,9 +469,9 @@ static int merge_working_tree(const struct checkout_opts *opts, int ret; struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file)); - hold_locked_index(lock_file, 1); + hold_locked_index(lock_file, LOCK_DIE_ON_ERROR); if (read_cache_preload(NULL) < 0) - return error(_("corrupt index file")); + return error(_("index file corrupt")); resolve_undo_clear(); if (opts->force) { @@ -495,7 +502,7 @@ static int merge_working_tree(const struct checkout_opts *opts, topts.update = 1; topts.merge = 1; topts.gently = opts->merge && old->commit; - topts.verbose_update = !opts->quiet && isatty(2); + topts.verbose_update = opts->show_progress; topts.fn = twoway_merge; if (opts->overwrite_ignore) { topts.dir = xcalloc(1, sizeof(*topts.dir)); @@ -503,10 +510,10 @@ static int merge_working_tree(const struct checkout_opts *opts, setup_standard_excludes(topts.dir); } tree = parse_tree_indirect(old->commit ? - old->commit->object.sha1 : - EMPTY_TREE_SHA1_BIN); + &old->commit->object.oid : + &empty_tree_oid); 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); init_tree_desc(&trees[1], tree->buffer, tree->size); ret = unpack_trees(2, trees, &topts); @@ -561,10 +568,13 @@ static int merge_working_tree(const struct checkout_opts *opts, o.ancestor = old->name; o.branch1 = new->name; o.branch2 = "local"; - merge_trees(&o, new->commit->tree, work, + ret = merge_trees(&o, new->commit->tree, work, old->commit->tree, &result); + if (ret < 0) + exit(128); ret = reset_tree(new->commit->tree, opts, 0, writeout_error); + strbuf_release(&o.obuf); if (ret) return ret; } @@ -604,24 +614,28 @@ static void update_refs_for_switch(const struct checkout_opts *opts, 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; + char *refname; + + refname = mkpathdup("refs/heads/%s", opts->new_orphan_branch); + if (opts->new_branch_log && + !should_autocreate_reflog(refname)) { + int ret; + struct strbuf err = STRBUF_INIT; + + ret = safe_create_reflog(refname, 1, &err); + if (ret) { + fprintf(stderr, _("Can not do reflog for '%s': %s\n"), + opts->new_orphan_branch, err.buf); + strbuf_release(&err); + free(refname); return; } - log_all_ref_updates = temp; + strbuf_release(&err); } + free(refname); } else - create_branch(old->name, opts->new_branch, new->name, + create_branch(opts->new_branch, new->name, opts->new_branch_force ? 1 : 0, opts->new_branch_log, opts->new_branch_force ? 1 : 0, @@ -633,7 +647,7 @@ static void update_refs_for_switch(const struct checkout_opts *opts, old_desc = old->name; if (!old_desc && old->commit) - old_desc = sha1_to_hex(old->commit->object.sha1); + old_desc = oid_to_hex(&old->commit->object.oid); reflog_msg = getenv("GIT_REFLOG_ACTION"); if (!reflog_msg) @@ -645,15 +659,17 @@ static void update_refs_for_switch(const struct checkout_opts *opts, 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, + 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) + if (old->path && + advice_detached_head && !opts->force_detach) 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) @@ -685,18 +701,17 @@ static void update_refs_for_switch(const 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, UNINTERESTING); + add_pending_oid(cb_data, refname, oid, UNINTERESTING); return 0; } static void describe_one_orphan(struct strbuf *sb, struct commit *commit) { strbuf_addstr(sb, " "); - strbuf_addstr(sb, - find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV)); + strbuf_add_unique_abbrev(sb, commit->object.oid.hash, DEFAULT_ABBREV); strbuf_addch(sb, ' '); if (!parse_commit(commit)) pp_commit_easy(CMIT_FMT_ONELINE, commit, sb); @@ -743,11 +758,18 @@ 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"), - find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV)); + " git branch <new-branch-name> %s\n\n", + /* Give ngettext() the count */ + lost), + find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV)); } /* @@ -765,10 +787,10 @@ static void orphaned_commit_warning(struct commit *old, struct commit *new) 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.sha1, UNINTERESTING); + add_pending_oid(&revs, "HEAD", &new->object.oid, UNINTERESTING); refs = revs.pending; revs.leak_pending = 1; @@ -790,11 +812,12 @@ static int switch_branches(const struct checkout_opts *opts, int ret = 0; struct branch_info old; void *path_to_free; - unsigned char rev[20]; + struct object_id rev; int flag, writeout_error = 0; memset(&old, 0, sizeof(old)); - old.path = path_to_free = resolve_refdup("HEAD", 0, rev, &flag); - old.commit = lookup_commit_reference_gently(rev, 1); + old.path = path_to_free = resolve_refdup("HEAD", 0, rev.hash, &flag); + if (old.path) + old.commit = lookup_commit_reference_gently(&rev, 1); if (!(flag & REF_ISSYMREF)) old.path = NULL; @@ -834,7 +857,7 @@ static int git_checkout_config(const char *var, const char *value, void *cb) } if (starts_with(var, "submodule.")) - return parse_submodule_config_option(var, value); + return submodule_config(var, value, NULL); return git_xmerge_config(var, value, NULL); } @@ -842,7 +865,7 @@ static int git_checkout_config(const char *var, const char *value, void *cb) struct tracking_name_data { /* const */ char *src_ref; char *dst_ref; - unsigned char *dst_sha1; + struct object_id *dst_oid; int unique; }; @@ -853,7 +876,7 @@ static int check_tracking_name(struct remote *remote, void *cb_data) memset(&query, 0, sizeof(struct refspec)); query.src = cb->src_ref; if (remote_find_tracking(remote, &query) || - get_sha1(query.dst, cb->dst_sha1)) { + get_oid(query.dst, cb->dst_oid)) { free(query.dst); return 0; } @@ -866,14 +889,13 @@ static int check_tracking_name(struct remote *remote, void *cb_data) return 0; } -static const char *unique_tracking_name(const char *name, unsigned char *sha1) +static const char *unique_tracking_name(const char *name, struct object_id *oid) { 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; + cb_data.src_ref = xstrfmt("refs/heads/%s", name); + cb_data.dst_oid = oid; for_each_remote(check_tracking_name, &cb_data); + free(cb_data.src_ref); if (cb_data.unique) return cb_data.dst_ref; free(cb_data.dst_ref); @@ -883,12 +905,13 @@ static const char *unique_tracking_name(const char *name, unsigned char *sha1) 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, + struct object_id *rev) { + struct tree **source_tree = &opts->source_tree; + const char **new_branch = &opts->new_branch; int argcount = 0; - unsigned char branch_rev[20]; + struct object_id branch_rev; const char *arg; int dash_dash_pos; int has_dash_dash = 0; @@ -954,7 +977,7 @@ static int parse_branchname_arg(int argc, const char **argv, if (!strcmp(arg, "-")) arg = "@{-1}"; - if (get_sha1_mb(arg, rev)) { + if (get_oid_mb(arg, rev)) { /* * Either case (3) or (4), with <something> not being * a commit, or an attempt to use case (1) with an @@ -965,7 +988,8 @@ static int parse_branchname_arg(int argc, const char **argv, */ int recover_with_dwim = dwim_new_local_branch_ok; - if (check_filename(NULL, arg) && !has_dash_dash) + if (!has_dash_dash && + (check_filename(opts->prefix, arg) || !no_wildcard(arg))) recover_with_dwim = 0; /* * Accept "git checkout foo" and "git checkout foo --" @@ -1002,8 +1026,8 @@ static int parse_branchname_arg(int argc, const char **argv, setup_branch_path(new); if (!check_refname_format(new->path, 0) && - !read_ref(new->path, branch_rev)) - hashcpy(rev, branch_rev); + !read_ref(new->path, branch_rev.hash)) + oidcpy(rev, &branch_rev); else new->path = NULL; /* not an existing branch */ @@ -1018,7 +1042,7 @@ static int parse_branchname_arg(int argc, const char **argv, if (!*source_tree) /* case (1): want a tree */ die(_("reference is not a tree: %s"), arg); - if (!has_dash_dash) {/* case (3).(d) -> (1) */ + if (!has_dash_dash) { /* case (3).(d) -> (1) */ /* * Do not complain the most common case * git checkout branch @@ -1026,7 +1050,7 @@ static int parse_branchname_arg(int argc, const char **argv, * it would be extremely annoying. */ if (argc) - verify_non_filename(NULL, arg); + verify_non_filename(opts->prefix, arg); } else { argcount++; argv++; @@ -1086,12 +1110,23 @@ static int checkout_branch(struct checkout_opts *opts, die(_("Cannot switch branch to a non-commit '%s'"), new->name); + if (new->path && !opts->force_detach && !opts->new_branch && + !opts->ignore_other_worktrees) { + struct object_id oid; + int flag; + char *head_ref = resolve_refdup("HEAD", 0, oid.hash, &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]; + struct object_id rev; int flag; - if (!read_ref_full("HEAD", 0, rev, &flag) && - (flag & REF_ISSYMREF) && is_null_sha1(rev)) + if (!read_ref_full("HEAD", 0, rev.hash, &flag) && + (flag & REF_ISSYMREF) && is_null_oid(&rev)) return switch_unborn_to_new_branch(opts); } return switch_branches(opts, new); @@ -1110,7 +1145,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) 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_BOOL(0, "detach", &opts.force_detach, N_("detach 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, N_("new-branch"), N_("new unparented branch")), @@ -1128,6 +1163,12 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) 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")), + { OPTION_CALLBACK, 0, "recurse-submodules", NULL, + "checkout", "control recursive updating of submodules", + PARSE_OPT_OPTARG, option_parse_recurse_submodules_worktree_updater }, + OPT_BOOL(0, "progress", &opts.show_progress, N_("force progress reporting")), OPT_END(), }; @@ -1135,6 +1176,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) memset(&new, 0, sizeof(new)); opts.overwrite_ignore = 1; opts.prefix = prefix; + opts.show_progress = -1; gitmodules_config(); git_config(git_checkout_config, &opts); @@ -1144,6 +1186,13 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) argc = parse_options(argc, argv, prefix, options, checkout_usage, PARSE_OPT_KEEP_DASHDASH); + 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); @@ -1190,15 +1239,14 @@ 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]; + struct object_id rev; int dwim_ok = !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, &opts.source_tree, - rev, &opts.new_branch); + &new, &opts, &rev); argv += n; argc -= n; } @@ -1216,9 +1264,8 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) * 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]); + die(_("'%s' is not a commit and a branch '%s' cannot be created from it"), + argv[0], opts.new_branch); if (opts.force_detach) die(_("git checkout: --detach does not take a path argument '%s'"), diff --git a/builtin/clean.c b/builtin/clean.c index 6dcb72e644..142bf668cf 100644 --- a/builtin/clean.c +++ b/builtin/clean.c @@ -10,7 +10,6 @@ #include "cache.h" #include "dir.h" #include "parse-options.h" -#include "refs.h" #include "string-list.h" #include "quote.h" #include "column.h" @@ -155,13 +154,11 @@ static int remove_dirs(struct strbuf *path, const char *prefix, int force_flag, struct strbuf quoted = STRBUF_INIT; struct dirent *e; int res = 0, ret = 0, gone = 1, original_len = path->len, len; - unsigned char submodule_head[20]; struct string_list dels = STRING_LIST_INIT_DUP; *dir_gone = 1; - if ((force_flag & REMOVE_DIR_KEEP_NESTED_GIT) && - !resolve_gitlink_ref(path->buf, "HEAD", submodule_head)) { + 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), @@ -177,15 +174,16 @@ static int remove_dirs(struct strbuf *path, const char *prefix, int force_flag, /* an empty dir could be removed even if it is unreadble */ res = dry_run ? 0 : rmdir(path->buf); if (res) { + int saved_errno = errno; quote_path_relative(path->buf, prefix, "ed); - warning(_(msg_warn_remove_failed), quoted.buf); + errno = saved_errno; + warning_errno(_(msg_warn_remove_failed), quoted.buf); *dir_gone = 0; } return res; } - if (path->buf[original_len - 1] != '/') - strbuf_addch(path, '/'); + strbuf_complete(path, '/'); len = path->len; while ((e = readdir(dir)) != NULL) { @@ -212,8 +210,10 @@ static int remove_dirs(struct strbuf *path, const char *prefix, int force_flag, quote_path_relative(path->buf, prefix, "ed); string_list_append(&dels, quoted.buf); } else { + int saved_errno = errno; quote_path_relative(path->buf, prefix, "ed); - warning(_(msg_warn_remove_failed), quoted.buf); + errno = saved_errno; + warning_errno(_(msg_warn_remove_failed), quoted.buf); *dir_gone = 0; ret = 1; } @@ -234,8 +234,10 @@ static int remove_dirs(struct strbuf *path, const char *prefix, int force_flag, if (!res) *dir_gone = 1; else { + int saved_errno = errno; quote_path_relative(path->buf, prefix, "ed); - warning(_(msg_warn_remove_failed), quoted.buf); + errno = saved_errno; + warning_errno(_(msg_warn_remove_failed), quoted.buf); *dir_gone = 0; ret = 1; } @@ -291,11 +293,11 @@ static void pretty_print_menus(struct string_list *menu_list) static void prompt_help_cmd(int singleton) { clean_print_color(CLEAN_COLOR_HELP); - printf_ln(singleton ? + printf(singleton ? _("Prompt help:\n" "1 - select a numbered item\n" "foo - select item based on unique prefix\n" - " - (empty) select nothing") : + " - (empty) select nothing\n") : _("Prompt help:\n" "1 - select a single item\n" "3-5 - select a range of items\n" @@ -303,7 +305,7 @@ static void prompt_help_cmd(int singleton) "foo - select item based on unique prefix\n" "-... - unselect specified items\n" "* - choose all items\n" - " - (empty) finish selecting")); + " - (empty) finish selecting\n")); clean_print_color(CLEAN_COLOR_RESET); } @@ -512,7 +514,7 @@ static int parse_choice(struct menu_stuff *menu_stuff, 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); + printf(_("Huh (%s)?\n"), (*ptr)->buf); clean_print_color(CLEAN_COLOR_RESET); continue; } @@ -547,7 +549,7 @@ static int *list_and_choose(struct menu_opts *opts, struct menu_stuff *stuff) int eof = 0; int i; - chosen = xmalloc(sizeof(int) * stuff->nr); + ALLOC_ARRAY(chosen, stuff->nr); /* set chosen as uninitialized */ for (i = 0; i < stuff->nr; i++) chosen[i] = -1; @@ -574,7 +576,7 @@ static int *list_and_choose(struct menu_opts *opts, struct menu_stuff *stuff) clean_get_color(CLEAN_COLOR_RESET)); } - if (strbuf_getline(&choice, stdin, '\n') != EOF) { + if (strbuf_getline_lf(&choice, stdin) != EOF) { strbuf_trim(&choice); } else { eof = 1; @@ -619,7 +621,7 @@ static int *list_and_choose(struct menu_opts *opts, struct menu_stuff *stuff) nr += chosen[i]; } - result = xcalloc(nr + 1, sizeof(int)); + result = xcalloc(st_add(nr, 1), sizeof(int)); for (i = 0; i < stuff->nr && j < nr; i++) { if (chosen[i]) result[j++] = i; @@ -656,7 +658,7 @@ static int filter_by_patterns_cmd(void) clean_print_color(CLEAN_COLOR_PROMPT); printf(_("Input ignore patterns>> ")); clean_print_color(CLEAN_COLOR_RESET); - if (strbuf_getline(&confirm, stdin, '\n') != EOF) + if (strbuf_getline_lf(&confirm, stdin) != EOF) strbuf_trim(&confirm); else putchar('\n'); @@ -681,7 +683,7 @@ static int filter_by_patterns_cmd(void) for_each_string_list_item(item, &del_list) { int dtype = DT_UNKNOWN; - if (is_excluded(&dir, item->string, &dtype)) { + if (is_excluded(&dir, &the_index, item->string, &dtype)) { *item->string = '\0'; changed++; } @@ -754,7 +756,7 @@ static int ask_each_cmd(void) 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(&confirm, stdin, '\n') != EOF) { + if (strbuf_getline_lf(&confirm, stdin) != EOF) { strbuf_trim(&confirm); } else { putchar('\n'); @@ -778,7 +780,7 @@ static int ask_each_cmd(void) static int quit_cmd(void) { string_list_clear(&del_list, 0); - printf_ln(_("Bye.")); + printf(_("Bye.\n")); return MENU_RETURN_NO_LOOP; } @@ -855,6 +857,38 @@ static void interactive_main_loop(void) } } +static void correct_untracked_entries(struct dir_struct *dir) +{ + int src, dst, ign; + + for (src = dst = ign = 0; src < dir->nr; src++) { + /* skip paths in ignored[] that cannot be inside entries[src] */ + while (ign < dir->ignored_nr && + 0 <= cmp_dir_entry(&dir->entries[src], &dir->ignored[ign])) + ign++; + + if (ign < dir->ignored_nr && + check_dir_entry_contains(dir->entries[src], dir->ignored[ign])) { + /* entries[src] contains an ignored path, so we drop it */ + free(dir->entries[src]); + } else { + struct dir_entry *ent = dir->entries[src++]; + + /* entries[src] does not contain an ignored path, so we keep it */ + dir->entries[dst++] = ent; + + /* then discard paths in entries[] contained inside entries[src] */ + while (src < dir->nr && + check_dir_entry_contains(ent, dir->entries[src])) + free(dir->entries[src++]); + + /* compensate for the outer loop's loop control */ + src--; + } + } + dir->nr = dst; +} + int cmd_clean(int argc, const char **argv, const char *prefix) { int i, res; @@ -914,6 +948,9 @@ int cmd_clean(int argc, const char **argv, const char *prefix) dir.flags |= DIR_SHOW_OTHER_DIRECTORIES; + if (remove_directories) + dir.flags |= DIR_SHOW_IGNORED_TOO | DIR_KEEP_UNTRACKED_CONTENTS; + if (read_cache() < 0) die(_("index file corrupt")); @@ -928,7 +965,8 @@ int cmd_clean(int argc, const char **argv, const char *prefix) PATHSPEC_PREFER_CWD, prefix, argv); - fill_directory(&dir, &pathspec); + fill_directory(&dir, &the_index, &pathspec); + correct_untracked_entries(&dir); for (i = 0; i < dir.nr; i++) { struct dir_entry *ent = dir.entries[i]; @@ -956,6 +994,12 @@ int cmd_clean(int argc, const char **argv, const char *prefix) string_list_append(&del_list, rel); } + for (i = 0; i < dir.nr; i++) + free(dir.entries[i]); + + for (i = 0; i < dir.ignored_nr; i++) + free(dir.ignored[i]); + if (interactive && del_list.nr > 0) interactive_main_loop(); @@ -985,8 +1029,10 @@ int cmd_clean(int argc, const char **argv, const char *prefix) } else { res = dry_run ? 0 : unlink(abs_path.buf); if (res) { + int saved_errno = errno; qname = quote_path_relative(item->string, NULL, &buf); - warning(_(msg_warn_remove_failed), qname); + errno = saved_errno; + warning_errno(_(msg_warn_remove_failed), qname); errors++; } else if (!quiet) { qname = quote_path_relative(item->string, NULL, &buf); diff --git a/builtin/clone.c b/builtin/clone.c index e18839d107..a2ea019c59 100644 --- a/builtin/clone.c +++ b/builtin/clone.c @@ -39,17 +39,39 @@ static const char * const builtin_clone_usage[] = { }; 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 char *option_template, *option_depth; +static int option_local = -1, option_no_hardlinks, option_shared; +static int option_no_tags; +static int option_shallow_submodules; +static int deepen; +static char *option_template, *option_depth, *option_since; static char *option_origin = NULL; static char *option_branch = NULL; +static struct string_list option_not = STRING_LIST_INIT_NODUP; static const char *real_git_dir; static char *option_upload_pack = "git-upload-pack"; static int option_verbosity; static int option_progress = -1; -static struct string_list option_config; -static struct string_list option_reference; +static enum transport_family family; +static struct string_list option_config = STRING_LIST_INIT_NODUP; +static struct string_list option_required_reference = STRING_LIST_INIT_NODUP; +static struct string_list option_optional_reference = STRING_LIST_INIT_NODUP; static int option_dissociate; +static int max_jobs = -1; +static struct string_list option_recurse_submodules = STRING_LIST_INIT_NODUP; + +static int recurse_submodules_cb(const struct option *opt, + const char *arg, int unset) +{ + if (unset) + string_list_clear((struct string_list *)opt->value, 0); + else if (arg) + string_list_append((struct string_list *)opt->value, arg); + else + string_list_append((struct string_list *)opt->value, + (const char *)opt->defval); + + return 0; +} static struct option builtin_clone_options[] = { OPT__VERBOSITY(&option_verbosity), @@ -68,14 +90,21 @@ static struct option builtin_clone_options[] = { 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")), + { OPTION_CALLBACK, 0, "recursive", &option_recurse_submodules, + N_("pathspec"), N_("initialize submodules in the clone"), + PARSE_OPT_OPTARG | PARSE_OPT_HIDDEN, recurse_submodules_cb, + (intptr_t)"." }, + { OPTION_CALLBACK, 0, "recurse-submodules", &option_recurse_submodules, + N_("pathspec"), N_("initialize submodules in the clone"), + PARSE_OPT_OPTARG, recurse_submodules_cb, (intptr_t)"." }, + 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"), + OPT_STRING_LIST(0, "reference", &option_required_reference, N_("repo"), N_("reference repository")), + OPT_STRING_LIST(0, "reference-if-able", &option_optional_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"), @@ -86,95 +115,161 @@ static struct option builtin_clone_options[] = { 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_STRING(0, "shallow-since", &option_since, N_("time"), + N_("create a shallow clone since a specific time")), + OPT_STRING_LIST(0, "shallow-exclude", &option_not, N_("revision"), + N_("deepen history of shallow clone, excluding rev")), OPT_BOOL(0, "single-branch", &option_single_branch, N_("clone only one branch, HEAD or --branch")), + OPT_BOOL(0, "no-tags", &option_no_tags, + N_("don't clone any tags, and make later fetches not to follow them")), + 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/.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) && is_git_directory(path)) { + 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 ? absolute_pathdup(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. + */ + 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. */ - start = end; - while (repo < start && !is_dir_sep(start[-1]) && start[-1] != ':') - start--; + ptr = end; + while (start < ptr && !is_dir_sep(ptr[-1]) && ptr[-1] != ':') + ptr--; + start = ptr; /* * Strip .{bundle,git}. */ - strip_suffix(start, is_bundle ? ".bundle" : ".git" , &len); + len = end - start; + strip_suffix_mem(start, &len, is_bundle ? ".bundle" : ".git"); + + 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); @@ -217,45 +312,37 @@ 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; - - /* Beware: read_gitfile(), real_path() and mkpath() return static buffer */ - ref_git = xstrdup(real_path(item->string)); - - 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 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); + struct strbuf err = STRBUF_INIT; + int *required = cb_data; + char *ref_git = compute_alternate_path(item->string, &err); + + if (!ref_git) { + if (*required) + die("%s", err.buf); + else + fprintf(stderr, + _("info: Could not add alternate for '%s': %s\n"), + item->string, err.buf); + } else { + struct strbuf sb = STRBUF_INIT; + strbuf_addf(&sb, "%s/objects", ref_git); + add_to_alternates_file(sb.buf); + strbuf_release(&sb); + } + + strbuf_release(&err); free(ref_git); return 0; } static void setup_reference(void) { - for_each_string_list(&option_reference, add_one_reference, NULL); + int required = 1; + for_each_string_list(&option_required_reference, + add_one_reference, &required); + required = 0; + for_each_string_list(&option_optional_reference, + add_one_reference, &required); } static void copy_alternates(struct strbuf *src, struct strbuf *dst, @@ -273,20 +360,24 @@ static void copy_alternates(struct strbuf *src, struct strbuf *dst, * to turn entries with paths relative to the original * absolute, so that they can be used in the new repository. */ - FILE *in = fopen(src->buf, "r"); + FILE *in = xfopen(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); + if (!normalize_path_copy(abs_path, abs_path)) + add_to_alternates_file(abs_path); + else + warning("skipping invalid relative alternate: %s/%s", + src_repo, line.buf); + free(abs_path); } strbuf_release(&line); fclose(in); @@ -365,8 +456,10 @@ static void clone_local(const char *src_repo, const char *dest_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); @@ -473,7 +566,7 @@ static struct ref *wanted_peer_refs(const struct ref *refs, } else get_fetch_map(refs, refspec, &tail, 0); - if (!option_mirror && !option_single_branch) + if (!option_mirror && !option_single_branch && !option_no_tags) get_fetch_map(refs, tag_refspec, &tail, 0); return local_refs; @@ -483,16 +576,26 @@ static void write_remote_refs(const struct ref *local_refs) { const struct ref *r; - lock_packed_refs(LOCK_DIE_ON_ERROR); + 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_packed_ref(r->peer_ref->name, r->old_sha1); + if (ref_transaction_create(t, r->peer_ref->name, r->old_oid.hash, + 0, NULL, &err)) + die("%s", err.buf); } - if (commit_packed_refs()) - die_errno("unable to overwrite old ref-pack file"); + 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) @@ -503,9 +606,9 @@ static void write_followtags(const struct ref *refs, const char *msg) continue; if (ends_with(ref->name, "^{}")) continue; - if (!has_sha1_file(ref->old_sha1)) + if (!has_object_file(&ref->old_oid)) continue; - update_ref(msg, ref->name, ref->old_sha1, + update_ref(msg, ref->name, ref->old_oid.hash, NULL, 0, UPDATE_REFS_DIE_ON_ERR); } } @@ -525,7 +628,7 @@ static int iterate_ref_map(void *cb_data, unsigned char sha1[20]) if (!ref) return -1; - hashcpy(sha1, ref->old_sha1); + hashcpy(sha1, ref->old_oid.hash); *rm = ref->next; return 0; } @@ -541,18 +644,18 @@ static void update_remote_refs(const struct ref *refs, 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)) + struct check_connected_options opt = CHECK_CONNECTED_INIT; + + opt.transport = transport; + opt.progress = transport->progress; + + if (check_connected(iterate_ref_map, &rm, &opt)) 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) + if (option_single_branch && !option_no_tags) write_followtags(refs, msg); } @@ -560,9 +663,11 @@ static void update_remote_refs(const struct ref *refs, struct strbuf head_ref = STRBUF_INIT; strbuf_addstr(&head_ref, branch_top); strbuf_addstr(&head_ref, "HEAD"); - create_symref(head_ref.buf, - remote_head_points_at->peer_ref->name, - msg); + 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); } } @@ -572,16 +677,17 @@ static void update_head(const struct ref *our, const struct ref *remote, const char *head; if (our && skip_prefix(our->name, "refs/heads/", &head)) { /* Local default branch link */ - create_symref("HEAD", our->name, NULL); + if (create_symref("HEAD", our->name, NULL) < 0) + die(_("unable to update HEAD")); if (!option_bare) { - update_ref(msg, "HEAD", our->old_sha1, NULL, 0, + 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_sha1); + struct commit *c = lookup_commit_reference(&our->old_oid); /* --branch specifies a non-branch (i.e. tags), detach HEAD */ - update_ref(msg, "HEAD", c->object.sha1, + update_ref(msg, "HEAD", c->object.oid.hash, NULL, REF_NODEREF, UPDATE_REFS_DIE_ON_ERR); } else if (remote) { /* @@ -589,14 +695,14 @@ static void update_head(const struct ref *our, const struct ref *remote, * HEAD points to a branch but we don't know which one. * Detach HEAD in all these cases. */ - update_ref(msg, "HEAD", remote->old_sha1, + update_ref(msg, "HEAD", remote->old_oid.hash, NULL, REF_NODEREF, UPDATE_REFS_DIE_ON_ERR); } } -static int checkout(void) +static int checkout(int submodule_progress) { - unsigned char sha1[20]; + struct object_id oid; char *head; struct lock_file *lock_file; struct unpack_trees_options opts; @@ -607,7 +713,7 @@ static int checkout(void) if (option_no_checkout) return 0; - head = resolve_refdup("HEAD", RESOLVE_REF_READING, sha1, NULL); + head = resolve_refdup("HEAD", RESOLVE_REF_READING, oid.hash, NULL); if (!head) { warning(_("remote HEAD refers to nonexistent ref, " "unable to checkout.\n")); @@ -615,7 +721,7 @@ static int checkout(void) } if (!strcmp(head, "HEAD")) { if (advice_detached_head) - detach_advice(sha1_to_hex(sha1)); + detach_advice(oid_to_hex(&oid)); } else { if (!starts_with(head, "refs/heads/")) die(_("HEAD not found below refs/heads!")); @@ -626,7 +732,7 @@ static int checkout(void) setup_work_tree(); lock_file = xcalloc(1, sizeof(struct lock_file)); - hold_locked_index(lock_file, 1); + hold_locked_index(lock_file, LOCK_DIE_ON_ERROR); memset(&opts, 0, sizeof opts); opts.update = 1; @@ -636,7 +742,7 @@ static int checkout(void) opts.src_index = &the_index; opts.dst_index = &the_index; - tree = parse_tree_indirect(sha1); + tree = parse_tree_indirect(&oid); parse_tree(tree); init_tree_desc(&t, tree->buffer, tree->size); if (unpack_trees(1, &t, &opts) < 0) @@ -646,17 +752,33 @@ static int checkout(void) 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); + oid_to_hex(&oid), "1", NULL); + + if (!err && (option_recurse_submodules.nr > 0)) { + struct argv_array args = ARGV_ARRAY_INIT; + argv_array_pushl(&args, "submodule", "update", "--init", "--recursive", NULL); - if (!err && option_recursive) - err = run_command_v_opt(argv_submodule, RUN_GIT_CMD); + if (option_shallow_submodules == 1) + argv_array_push(&args, "--depth=1"); + + if (max_jobs != -1) + argv_array_pushf(&args, "--jobs=%d", max_jobs); + + if (submodule_progress) + argv_array_push(&args, "--progress"); + + err = run_command_v_opt(args.argv, RUN_GIT_CMD); + argv_array_clear(&args); + } 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", + CONFIG_REGEX_NONE, 0); } static void write_config(struct string_list *config) @@ -666,7 +788,7 @@ 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")); } } @@ -725,11 +847,15 @@ static void write_refspec_config(const char *src_ref_prefix, static void dissociate_from_references(void) { static const char* argv[] = { "repack", "-a", "-d", NULL }; + char *alternates = git_pathdup("objects/info/alternates"); - if (run_command_v_opt(argv, RUN_GIT_CMD|RUN_COMMAND_NO_STDIN)) - die(_("cannot repack to clean up")); - if (unlink(git_path("objects/info/alternates")) && errno != ENOENT) - die_errno(_("cannot unlink temporary alternates file")); + 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) @@ -750,6 +876,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix) const char *src_ref_prefix = "refs/heads/"; struct remote *remote; int err = 0, complete_refs_before_fetch = 1; + int submodule_progress; struct refspec *refspec; const char *fetch_pattern; @@ -766,8 +893,10 @@ 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_depth || option_since || option_not.nr) + deepen = 1; if (option_single_branch == -1) - option_single_branch = option_depth ? 1 : 0; + option_single_branch = deepen ? 1 : 0; if (option_mirror) option_bare = 1; @@ -788,7 +917,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix) path = get_repo_path(repo_name, &is_bundle); if (path) - repo = xstrdup(absolute_path(repo_name)); + repo = absolute_pathdup(repo_name); else if (!strchr(repo_name, ':')) die(_("repository '%s' does not exist"), repo_name); else @@ -840,23 +969,58 @@ int cmd_clone(int argc, const char **argv, const char *prefix) set_git_work_tree(work_tree); } - junk_git_dir = git_dir; + junk_git_dir = real_git_dir ? real_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) { - git_dir = real_git_dir; - junk_git_dir = real_git_dir; - } - if (0 <= option_verbosity) { if (option_bare) fprintf(stderr, _("Cloning into bare repository '%s'...\n"), dir); else fprintf(stderr, _("Cloning into '%s'...\n"), dir); } - init_db(option_template, INIT_DB_QUIET); + + if (option_recurse_submodules.nr > 0) { + struct string_list_item *item; + struct strbuf sb = STRBUF_INIT; + + /* remove duplicates */ + string_list_sort(&option_recurse_submodules); + string_list_remove_duplicates(&option_recurse_submodules, 0); + + /* + * NEEDSWORK: In a multi-working-tree world, this needs to be + * set in the per-worktree config. + */ + for_each_string_list_item(item, &option_recurse_submodules) { + strbuf_addf(&sb, "submodule.active=%s", + item->string); + string_list_append(&option_config, + strbuf_detach(&sb, NULL)); + } + + if (option_required_reference.nr && + option_optional_reference.nr) + die(_("clone --recursive is not compatible with " + "both --reference and --reference-if-able")); + else if (option_required_reference.nr) { + string_list_append(&option_config, + "submodule.alternateLocation=superproject"); + string_list_append(&option_config, + "submodule.alternateErrorStrategy=die"); + } else if (option_optional_reference.nr) { + string_list_append(&option_config, + "submodule.alternateLocation=superproject"); + string_list_append(&option_config, + "submodule.alternateErrorStrategy=info"); + } + } + + init_db(git_dir, real_git_dir, option_template, INIT_DB_QUIET); + + if (real_git_dir) + git_dir = real_git_dir; + write_config(&option_config); git_config(git_default_config, NULL); @@ -876,13 +1040,15 @@ int cmd_clone(int argc, const char **argv, const char *prefix) git_config_set(key.buf, repo); strbuf_reset(&key); - if (option_reference.nr) - setup_reference(); - else if (option_dissociate) { - warning(_("--dissociate given, but there is no --reference")); - option_dissociate = 0; + if (option_no_tags) { + strbuf_addf(&key, "remote.%s.tagOpt", option_origin); + git_config_set(key.buf, "--no-tags"); + strbuf_reset(&key); } + if (option_required_reference.nr || option_optional_reference.nr) + setup_reference(); + fetch_pattern = value.buf; refspec = parse_fetch_refspec(1, &fetch_pattern); @@ -891,12 +1057,17 @@ int cmd_clone(int argc, const char **argv, const char *prefix) 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) { if (option_depth) warning(_("--depth is ignored in local clones; use file:// instead.")); + if (option_since) + warning(_("--shallow-since is ignored in local clones; use file:// instead.")); + if (option_not.nr) + warning(_("--shallow-exclude 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")); @@ -915,6 +1086,12 @@ int cmd_clone(int argc, const char **argv, const char *prefix) if (option_depth) transport_set_option(transport, TRANS_OPT_DEPTH, option_depth); + if (option_since) + transport_set_option(transport, TRANS_OPT_DEEPEN_SINCE, + option_since); + if (option_not.nr) + transport_set_option(transport, TRANS_OPT_DEEPEN_NOT, + (const char *)&option_not); if (option_single_branch) transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, "1"); @@ -922,7 +1099,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix) transport_set_option(transport, TRANS_OPT_UPLOADPACK, option_upload_pack); - if (transport->smart_options && !option_depth) + if (transport->smart_options && !deepen) transport->smart_options->check_self_contained_and_connected = 1; refs = transport_get_remote_refs(transport); @@ -940,7 +1117,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix) * remote HEAD check. */ for (ref = refs; ref; ref = ref->next) - if (is_null_sha1(ref->old_sha1)) { + if (is_null_oid(&ref->old_oid)) { complete_refs_before_fetch = 0; break; } @@ -992,14 +1169,24 @@ int cmd_clone(int argc, const char **argv, const char *prefix) update_head(our_head_points_at, remote_head, reflog_msg.buf); + /* + * We want to show progress for recursive submodule clones iff + * we did so for the main clone. But only the transport knows + * the final decision for this flag, so we need to rescue the value + * before we free the transport. + */ + submodule_progress = transport->progress; + transport_unlock_pack(transport); transport_disconnect(transport); - if (option_dissociate) + if (option_dissociate) { + close_all_packs(); dissociate_from_references(); + } junk_mode = JUNK_LEAVE_REPO; - err = checkout(); + err = checkout(submodule_progress); strbuf_release(&reflog_msg); strbuf_release(&branch_top); diff --git a/builtin/column.c b/builtin/column.c index 449413c8a8..33314b4d71 100644 --- a/builtin/column.c +++ b/builtin/column.c @@ -51,7 +51,7 @@ int cmd_column(int argc, const char **argv, const char *prefix) die(_("--command must be the first argument")); } finalize_colopts(&colopts, -1); - while (!strbuf_getline(&sb, stdin, '\n')) + while (!strbuf_getline(&sb, stdin)) string_list_append(&list, sb.buf); print_columns(&list, colopts, &copts); diff --git a/builtin/commit-tree.c b/builtin/commit-tree.c index 25aa2cdef3..f39c2b2737 100644 --- a/builtin/commit-tree.c +++ b/builtin/commit-tree.c @@ -10,17 +10,17 @@ #include "utf8.h" #include "gpg-interface.h" -static const char commit_tree_usage[] = "git commit-tree [(-p <sha1>)...] [-S[<keyid>]] [-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; @@ -33,10 +33,6 @@ 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; - if (!strcmp(var, "commit.gpgsign")) { - sign_commit = git_config_bool(var, value) ? "" : NULL; - return 0; - } return git_default_config(var, value, cb); } @@ -44,8 +40,8 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix) { int i, got_tree = 0; struct commit_list *parents = NULL; - unsigned char tree_sha1[20]; - unsigned char commit_sha1[20]; + struct object_id tree_oid; + struct object_id commit_oid; struct strbuf buffer = STRBUF_INIT; git_config(commit_tree_config, NULL); @@ -56,13 +52,13 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix) for (i = 1; i < argc; i++) { const char *arg = argv[i]; if (!strcmp(arg, "-p")) { - unsigned char sha1[20]; + struct object_id oid; if (argc <= ++i) usage(commit_tree_usage); - if (get_sha1_commit(argv[i], sha1)) + if (get_sha1_commit(argv[i], oid.hash)) die("Not a valid object name %s", argv[i]); - assert_sha1_type(sha1, OBJ_COMMIT); - new_parent(lookup_commit(sha1), &parents); + assert_sha1_type(oid.hash, OBJ_COMMIT); + new_parent(lookup_commit(&oid), &parents); continue; } @@ -109,7 +105,7 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix) continue; } - if (get_sha1_tree(arg, tree_sha1)) + if (get_sha1_tree(arg, tree_oid.hash)) die("Not a valid object name %s", arg); if (got_tree) die("Cannot give more than one trees"); @@ -121,13 +117,13 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix) die_errno("git commit-tree: failed to read"); } - if (commit_tree(buffer.buf, buffer.len, tree_sha1, parents, - commit_sha1, NULL, sign_commit)) { + if (commit_tree(buffer.buf, buffer.len, tree_oid.hash, parents, + commit_oid.hash, NULL, sign_commit)) { strbuf_release(&buffer); return 1; } - printf("%s\n", sha1_to_hex(commit_sha1)); + printf("%s\n", oid_to_hex(&commit_oid)); strbuf_release(&buffer); return 0; } diff --git a/builtin/commit.c b/builtin/commit.c index c2ebea4ed3..ef52457eff 100644 --- a/builtin/commit.c +++ b/builtin/commit.c @@ -32,6 +32,7 @@ #include "sequencer.h" #include "notes-utils.h" #include "mailmap.h" +#include "sigchain.h" static const char * const builtin_commit_usage[] = { N_("git commit [<options>] [--] <pathspec>..."), @@ -91,8 +92,9 @@ N_("If you wish to skip this commit, use:\n" "Then \"git cherry-pick --continue\" will resume cherry-picking\n" "the remaining commits.\n"); +static GIT_PATH_FUNC(git_path_commit_editmsg, "COMMIT_EDITMSG") + static const char *use_message_buffer; -static const char commit_editmsg[] = "COMMIT_EDITMSG"; static struct lock_file index_lock; /* real index */ static struct lock_file false_lock; /* used only for partial commits */ static enum { @@ -113,6 +115,7 @@ 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; @@ -139,14 +142,24 @@ static int show_ignored_in_status, have_option_m; static const char *only_include_assumed; static struct strbuf message = STRBUF_INIT; -static enum status_format { - STATUS_FORMAT_NONE = 0, - STATUS_FORMAT_LONG, - STATUS_FORMAT_SHORT, - STATUS_FORMAT_PORCELAIN, +static enum wt_status_format status_format = STATUS_FORMAT_UNSPECIFIED; + +static int opt_parse_porcelain(const struct option *opt, const char *arg, int unset) +{ + enum wt_status_format *value = (enum wt_status_format *)opt->value; + if (unset) + *value = STATUS_FORMAT_NONE; + else if (!arg) + *value = STATUS_FORMAT_PORCELAIN; + else if (!strcmp(arg, "v1") || !strcmp(arg, "1")) + *value = STATUS_FORMAT_PORCELAIN; + else if (!strcmp(arg, "v2") || !strcmp(arg, "2")) + *value = STATUS_FORMAT_PORCELAIN_V2; + else + die("unsupported porcelain version '%s'", arg); - STATUS_FORMAT_UNSPECIFIED -} status_format = STATUS_FORMAT_UNSPECIFIED; + return 0; +} static int opt_parse_m(const struct option *opt, const char *arg, int unset) { @@ -166,11 +179,11 @@ static int opt_parse_m(const struct option *opt, const char *arg, int unset) 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("sequencer"))) + if (file_exists(git_path_seq_dir())) sequencer_in_use = 1; } else @@ -185,6 +198,7 @@ static void status_init_config(struct wt_status *s, config_fn_t fn) gitmodules_config(); git_config(fn, s); determine_whence(s); + init_diff_ui_defaults(); s->hints = advice_status_hints; /* must come after git_config() */ } @@ -299,7 +313,7 @@ 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(¤t_head->object.oid); if (!tree) die(_("failed to unpack HEAD tree object")); parse_tree(tree); @@ -324,6 +338,7 @@ static const char *prepare_index(int argc, const char **argv, const char *prefix struct string_list partial; struct pathspec pathspec; int refresh_flags = REFRESH_QUIET; + const char *ret; if (is_status) refresh_flags |= REFRESH_UNMERGED; @@ -336,7 +351,7 @@ static const char *prepare_index(int argc, const char **argv, const char *prefix if (interactive) { char *old_index_env = NULL; - hold_locked_index(&index_lock, 1); + hold_locked_index(&index_lock, LOCK_DIE_ON_ERROR); refresh_cache_or_die(refresh_flags); @@ -344,7 +359,7 @@ static const char *prepare_index(int argc, const char **argv, const char *prefix die(_("unable to create temporary index")); old_index_env = getenv(INDEX_ENVIRONMENT); - setenv(INDEX_ENVIRONMENT, index_lock.filename.buf, 1); + setenv(INDEX_ENVIRONMENT, get_lock_file_path(&index_lock), 1); if (interactive_add(argc, argv, prefix, patch_interactive) != 0) die(_("interactive add failed")); @@ -355,7 +370,7 @@ static const char *prepare_index(int argc, const char **argv, const char *prefix unsetenv(INDEX_ENVIRONMENT); discard_cache(); - read_cache_from(index_lock.filename.buf); + 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")); @@ -365,7 +380,7 @@ static const char *prepare_index(int argc, const char **argv, const char *prefix warning(_("Failed to update main cache tree")); commit_style = COMMIT_NORMAL; - return index_lock.filename.buf; + return get_lock_file_path(&index_lock); } /* @@ -381,14 +396,14 @@ static const char *prepare_index(int argc, const char **argv, const char *prefix * (B) on failure, rollback the real index. */ if (all || (also && pathspec.nr)) { - hold_locked_index(&index_lock, 1); + hold_locked_index(&index_lock, LOCK_DIE_ON_ERROR); add_files_to_cache(also ? prefix : NULL, &pathspec, 0); refresh_cache_or_die(refresh_flags); 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.buf; + return get_lock_file_path(&index_lock); } /* @@ -401,13 +416,11 @@ static const char *prepare_index(int argc, const char **argv, const char *prefix * We still need to refresh the index here. */ if (!only && !pathspec.nr) { - hold_locked_index(&index_lock, 1); + hold_locked_index(&index_lock, LOCK_DIE_ON_ERROR); refresh_cache_or_die(refresh_flags); if (active_cache_changed - || !cache_tree_fully_valid(active_cache_tree)) { + || !cache_tree_fully_valid(active_cache_tree)) update_main_cache_tree(WRITE_TREE_SILENT); - active_cache_changed = 1; - } if (active_cache_changed) { if (write_locked_index(&the_index, &index_lock, COMMIT_LOCK)) @@ -455,7 +468,7 @@ static const char *prepare_index(int argc, const char **argv, const char *prefix if (read_cache() < 0) die(_("cannot read the index")); - hold_locked_index(&index_lock, 1); + hold_locked_index(&index_lock, LOCK_DIE_ON_ERROR); add_remove_files(&partial); refresh_cache(REFRESH_QUIET); update_main_cache_tree(WRITE_TREE_SILENT); @@ -475,15 +488,15 @@ static const char *prepare_index(int argc, const char **argv, const char *prefix die(_("unable to write temporary index file")); discard_cache(); - read_cache_from(false_lock.filename.buf); - - return false_lock.filename.buf; + 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, struct wt_status *s) { - unsigned char sha1[20]; + struct object_id oid; if (s->relative_paths) s->prefix = prefix; @@ -496,25 +509,14 @@ static int run_status(FILE *fp, const char *index_file, const char *prefix, int s->index_file = index_file; s->fp = fp; s->nowarn = nowarn; - s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0; + s->is_initial = get_sha1(s->reference, oid.hash) ? 1 : 0; + if (!s->is_initial) + hashcpy(s->sha1_commit, oid.hash); + s->status_format = status_format; + s->ignore_submodule_arg = ignore_submodule_arg; wt_status_collect(s); - - switch (status_format) { - case STATUS_FORMAT_SHORT: - wt_shortstatus_print(s); - break; - case STATUS_FORMAT_PORCELAIN: - 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; - } + wt_status_print(s); return s->commitable; } @@ -694,7 +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, "-")) { @@ -712,7 +714,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix, char *buffer; buffer = strstr(use_message_buffer, "\n\n"); if (buffer) - strbuf_addstr(&sb, buffer + 2); + strbuf_addstr(&sb, skip_blank_lines(buffer + 2)); hook_arg1 = "commit"; hook_arg2 = use_message; } else if (fixup_message) { @@ -725,12 +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) { @@ -761,9 +772,9 @@ 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)); + 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; @@ -776,10 +787,10 @@ static int prepare_to_commit(const char *index_file, const char *prefix, s->hints = 0; if (clean_message_contents) - stripspace(&sb, 0); + strbuf_stripspace(&sb, 0); if (signoff) - append_signoff(&sb, ignore_non_trailer(&sb), 0); + append_signoff(&sb, ignore_non_trailer(sb.buf, sb.len), 0); if (fwrite(sb.buf, 1, sb.len, s->fp) < sb.len) die_errno(_("could not write commit template")); @@ -810,9 +821,9 @@ static int prepare_to_commit(const char *index_file, const char *prefix, "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")); + whence == FROM_MERGE ? + git_path_merge_head() : + git_path_cherry_pick_head()); } fprintf(s->fp, "\n"); @@ -856,7 +867,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix, _("%s" "Date: %s"), ident_shown++ ? "" : "\n", - show_ident_date(&ai, DATE_NORMAL)); + show_ident_date(&ai, DATE_MODE(NORMAL))); if (!committer_ident_sufficiently_given()) status_printf_ln(s, GIT_COLOR_NORMAL, @@ -874,7 +885,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix, commitable = run_status(s->fp, index_file, prefix, 1, s); s->use_color = saved_color_setting; } else { - unsigned char sha1[20]; + struct object_id oid; const char *parent = "HEAD"; if (!active_nr && read_cache() < 0) @@ -883,9 +894,14 @@ static int prepare_to_commit(const char *index_file, const char *prefix, if (amend) parent = "HEAD^1"; - if (get_sha1(parent, sha1)) - commitable = !!active_nr; - else { + if (get_sha1(parent, oid.hash)) { + int i, ita_nr = 0; + + for (i = 0; i < active_nr; i++) + if (ce_intent_to_add(active_cache[i])) + ita_nr++; + commitable = active_nr - ita_nr > 0; + } else { /* * Unless the user did explicitly request a submodule * ignore mode by passing a command line option we do @@ -899,7 +915,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix, if (ignore_submodule_arg && !strcmp(ignore_submodule_arg, "all")) diff_flags |= DIFF_OPT_IGNORE_SUBMODULES; - commitable = index_differs_from(parent, diff_flags); + commitable = index_differs_from(parent, diff_flags, 1); } } strbuf_release(&committer_ident); @@ -940,23 +956,23 @@ static int prepare_to_commit(const char *index_file, const char *prefix, } if (run_commit_hook(use_editor, index_file, "prepare-commit-msg", - git_path(commit_editmsg), hook_arg1, hook_arg2, NULL)) + git_path_commit_editmsg(), hook_arg1, hook_arg2, NULL)) return 0; if (use_editor) { - char index[PATH_MAX]; - const char *env[2] = { NULL }; - env[0] = index; - snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file); - if (launch_editor(git_path(commit_editmsg), NULL, env)) { + struct argv_array env = ARGV_ARRAY_INIT; + + argv_array_pushf(&env, "GIT_INDEX_FILE=%s", index_file); + if (launch_editor(git_path_commit_editmsg(), NULL, env.argv)) { fprintf(stderr, _("Please supply the message using either -m or -F option.\n")); exit(1); } + argv_array_clear(&env); } if (!no_verify && - run_commit_hook(use_editor, 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; } @@ -1015,7 +1031,7 @@ static int template_untouched(struct strbuf *sb) if (!template_file || strbuf_read_file(&tmpl, template_file, 0) <= 0) return 0; - stripspace(&tmpl, cleanup_mode == CLEANUP_ALL); + strbuf_stripspace(&tmpl, cleanup_mode == CLEANUP_ALL); if (!skip_prefix(sb->buf, tmpl.buf, &start)) start = sb->buf; strbuf_release(&tmpl); @@ -1046,7 +1062,7 @@ static const char *find_author_by_nickname(const char *name) 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); clear_mailmap(&mailmap); @@ -1087,7 +1103,7 @@ static const char *read_commit_message(const char *name) * is not in effect here. */ static struct status_deferred_config { - enum status_format status_format; + enum wt_status_format status_format; int show_branch; } status_deferred_config = { STATUS_FORMAT_UNSPECIFIED, @@ -1097,6 +1113,7 @@ static struct status_deferred_config { static void finalize_deferred_config(struct wt_status *s) { int use_deferred_config = (status_format != STATUS_FORMAT_PORCELAIN && + status_format != STATUS_FORMAT_PORCELAIN_V2 && !s->null_termination); if (s->null_termination) { @@ -1162,9 +1179,9 @@ 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 || message.len) + if (f || have_option_m) template_file = NULL; if (edit_message) use_message = edit_message; @@ -1189,10 +1206,8 @@ static int parse_and_validate_options(int argc, const char *argv[], if (also + only + all + interactive > 1) die(_("Only one of --include/--only/--all/--interactive/--patch can be used.")); - if (argc == 0 && (also || (only && !amend))) + if (argc == 0 && (also || (only && !amend && !allow_empty))) 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 or -o; assuming --only paths..."); if (!cleanup_arg || !strcmp(cleanup_arg, "default")) @@ -1248,6 +1263,10 @@ static int parse_status_slot(const char *slot) return WT_STATUS_NOBRANCH; if (!strcasecmp(slot, "unmerged")) return WT_STATUS_UNMERGED; + if (!strcasecmp(slot, "localBranch")) + return WT_STATUS_LOCAL_BRANCH; + if (!strcasecmp(slot, "remoteBranch")) + return WT_STATUS_REMOTE_BRANCH; return -1; } @@ -1317,16 +1336,16 @@ int cmd_status(int argc, const char **argv, const char *prefix) { static struct wt_status s; int fd; - unsigned char sha1[20]; + struct object_id oid; static struct option builtin_status_options[] = { OPT__VERBOSE(&verbose, N_("be verbose")), OPT_SET_INT('s', "short", &status_format, 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, - N_("machine-readable output"), - STATUS_FORMAT_PORCELAIN), + { OPTION_CALLBACK, 0, "porcelain", &status_format, + N_("version"), N_("machine-readable output"), + PARSE_OPT_OPTARG, opt_parse_porcelain }, OPT_SET_INT(0, "long", &status_format, N_("show status in long format (default)"), STATUS_FORMAT_LONG), @@ -1366,39 +1385,30 @@ int cmd_status(int argc, const char **argv, const char *prefix) 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.is_initial = get_sha1(s.reference, oid.hash) ? 1 : 0; + if (!s.is_initial) + hashcpy(s.sha1_commit, oid.hash); + s.ignore_submodule_arg = ignore_submodule_arg; + s.status_format = status_format; + s.verbose = verbose; + 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); - break; - case STATUS_FORMAT_PORCELAIN: - 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; - wt_status_print(&s); - break; - } + wt_status_print(&s); return 0; } static const char *implicit_ident_advice(void) { - char *user_config = expand_user_path("~/.gitconfig"); + char *user_config = expand_user_path("~/.gitconfig", 0); char *xdg_config = xdg_config_home("config"); int config_exists = file_exists(user_config) || file_exists(xdg_config); @@ -1412,19 +1422,19 @@ static const char *implicit_ident_advice(void) } -static void print_summary(const char *prefix, const unsigned char *sha1, +static void print_summary(const char *prefix, const struct object_id *oid, int initial_commit) { struct rev_info rev; struct commit *commit; struct strbuf format = STRBUF_INIT; - unsigned char junk_sha1[20]; + struct object_id junk_oid; const char *head; struct pretty_print_context pctx = {0}; struct strbuf author_ident = STRBUF_INIT; struct strbuf committer_ident = STRBUF_INIT; - commit = lookup_commit(sha1); + commit = lookup_commit(oid); if (!commit) die(_("couldn't look up newly created commit")); if (parse_commit(commit)) @@ -1471,7 +1481,7 @@ 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", 0, junk_sha1, NULL); + head = resolve_ref_unsafe("HEAD", 0, junk_oid.hash, NULL); if (!strcmp(head, "HEAD")) head = _("detached HEAD"); else @@ -1504,6 +1514,11 @@ static int git_commit_config(const char *k, const char *v, void *cb) 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) @@ -1511,15 +1526,13 @@ static int git_commit_config(const char *k, const char *v, void *cb) return git_status_config(k, v, s); } -static int run_rewrite_hook(const unsigned char *oldsha1, - const unsigned char *newsha1) +static int run_rewrite_hook(const struct object_id *oldoid, + const struct object_id *newoid) { - /* oldsha1 SP newsha1 LF NUL */ - static char buf[2*40 + 3]; struct child_process proc = CHILD_PROCESS_INIT; const char *argv[3]; int code; - size_t n; + struct strbuf sb = STRBUF_INIT; argv[0] = find_hook("post-rewrite"); if (!argv[0]) @@ -1535,32 +1548,33 @@ static int run_rewrite_hook(const unsigned char *oldsha1, code = start_command(&proc); if (code) return code; - n = snprintf(buf, sizeof(buf), "%s %s\n", - sha1_to_hex(oldsha1), sha1_to_hex(newsha1)); - write_in_full(proc.in, buf, n); + strbuf_addf(&sb, "%s %s\n", oid_to_hex(oldoid), oid_to_hex(newoid)); + sigchain_push(SIGPIPE, SIG_IGN); + write_in_full(proc.in, sb.buf, sb.len); close(proc.in); + strbuf_release(&sb); + 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]; + struct argv_array hook_env = ARGV_ARRAY_INIT; va_list args; int ret; - snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file); - hook_env[0] = index; + argv_array_pushf(&hook_env, "GIT_INDEX_FILE=%s", index_file); /* * Let the hook know that no editor will be launched. */ if (!editor_is_used) - hook_env[1] = "GIT_EDITOR=:"; + argv_array_push(&hook_env, "GIT_EDITOR=:"); va_start(args, name); - ret = run_hook_ve(hook_env, name, args); + ret = run_hook_ve(hook_env.argv,name, args); va_end(args); + argv_array_clear(&hook_env); return ret; } @@ -1597,7 +1611,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix) 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('n', "no-verify", &no_verify, N_("bypass pre-commit and commit-msg hooks")), 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), @@ -1626,8 +1640,8 @@ int cmd_commit(int argc, const char **argv, const char *prefix) struct strbuf author_ident = STRBUF_INIT; const char *index_file, *reflog_msg; char *nl; - unsigned char sha1[20]; - struct commit_list *parents = NULL, **pptr = &parents; + struct object_id oid; + struct commit_list *parents = NULL; struct stat statbuf; struct commit *current_head = NULL; struct commit_extra_header *extra = NULL; @@ -1641,16 +1655,20 @@ int cmd_commit(int argc, const char **argv, const char *prefix) status_format = STATUS_FORMAT_NONE; /* Ignore status.short */ s.colopts = 0; - if (get_sha1("HEAD", sha1)) + if (get_sha1("HEAD", oid.hash)) current_head = NULL; else { - current_head = lookup_commit_or_die(sha1, "HEAD"); + current_head = lookup_commit_or_die(&oid, "HEAD"); if (parse_commit(current_head)) die(_("could not parse HEAD commit")); } + 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); @@ -1669,36 +1687,31 @@ int cmd_commit(int argc, const char **argv, const char *prefix) if (!reflog_msg) reflog_msg = "commit (initial)"; } else if (amend) { - struct commit_list *c; - if (!reflog_msg) reflog_msg = "commit (amend)"; - for (c = current_head->parents; c; c = c->next) - pptr = &commit_list_insert(c->item, pptr)->next; + parents = copy_commit_list(current_head->parents); } else if (whence == FROM_MERGE) { struct strbuf m = STRBUF_INIT; FILE *fp; int allow_fast_forward = 1; + struct commit_list **pptr = &parents; if (!reflog_msg) reflog_msg = "commit (merge)"; - pptr = &commit_list_insert(current_head, pptr)->next; - 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) { + pptr = commit_list_append(current_head, pptr); + fp = xfopen(git_path_merge_head(), "r"); + while (strbuf_getline_lf(&m, fp) != EOF) { struct commit *parent; parent = get_merge_parent(m.buf); if (!parent) die(_("Corrupt MERGE_HEAD file (%s)"), m.buf); - pptr = &commit_list_insert(parent, pptr)->next; + pptr = commit_list_append(parent, pptr); } 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; @@ -1710,12 +1723,12 @@ int cmd_commit(int argc, const char **argv, const char *prefix) reflog_msg = (whence == FROM_CHERRY_PICK) ? "commit (cherry-pick)" : "commit"; - pptr = &commit_list_insert(current_head, pptr)->next; + commit_list_insert(current_head, &parents); } /* Finally, get the commit message */ strbuf_reset(&sb); - if (strbuf_read_file(&sb, git_path(commit_editmsg), 0) < 0) { + if (strbuf_read_file(&sb, git_path_commit_editmsg(), 0) < 0) { int saved_errno = errno; rollback_index_files(); die(_("could not read commit message: %s"), strerror(saved_errno)); @@ -1723,10 +1736,10 @@ int cmd_commit(int argc, const char **argv, const char *prefix) if (verbose || /* Truncate the message just before the diff, if any. */ cleanup_mode == CLEANUP_SCISSORS) - wt_status_truncate_message_at_cut_line(&sb); + strbuf_setlen(&sb, wt_status_locate_end(sb.buf, sb.len)); 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")); @@ -1746,8 +1759,8 @@ int cmd_commit(int argc, const char **argv, const char *prefix) append_merge_tag_headers(parents, &tail); } - if (commit_tree_extended(sb.buf, sb.len, active_cache_tree->sha1, - parents, sha1, author_ident.buf, sign_commit, extra)) { + if (commit_tree_extended(sb.buf, sb.len, active_cache_tree->oid.hash, + parents, oid.hash, author_ident.buf, sign_commit, extra)) { rollback_index_files(); die(_("failed to write commit object")); } @@ -1764,9 +1777,9 @@ int cmd_commit(int argc, const char **argv, const char *prefix) transaction = ref_transaction_begin(&err); if (!transaction || - ref_transaction_update(transaction, "HEAD", sha1, + ref_transaction_update(transaction, "HEAD", oid.hash, current_head - ? current_head->object.sha1 : null_sha1, + ? current_head->object.oid.hash : null_sha1, 0, sb.buf, &err) || ref_transaction_commit(transaction, &err)) { rollback_index_files(); @@ -1774,12 +1787,12 @@ int cmd_commit(int argc, const char **argv, const char *prefix) } 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" @@ -1793,13 +1806,13 @@ int cmd_commit(int argc, const char **argv, const char *prefix) 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); + copy_note_for_rewrite(cfg, current_head->object.oid.hash, oid.hash); finish_copy_notes_for_rewrite(cfg, "Notes added by 'git commit --amend'"); } - run_rewrite_hook(current_head->object.sha1, sha1); + run_rewrite_hook(¤t_head->object.oid, &oid); } if (!quiet) - print_summary(prefix, sha1, !current_head); + print_summary(prefix, &oid, !current_head); strbuf_release(&err); return 0; diff --git a/builtin/config.c b/builtin/config.c index a58f99c2d7..7f6c25d4d9 100644 --- a/builtin/config.c +++ b/builtin/config.c @@ -3,6 +3,7 @@ #include "color.h" #include "parse-options.h" #include "urlmatch.h" +#include "quote.h" static const char *const builtin_config_usage[] = { N_("git config [<options>]"), @@ -13,6 +14,7 @@ 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; @@ -23,9 +25,10 @@ static char term = '\n'; static int use_global_config, use_system_config, use_local_config; 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 respect_includes_opt = -1; +static struct config_options config_options; +static int show_origin; #define ACTION_GET (1<<0) #define ACTION_GET_ALL (1<<1) @@ -78,7 +81,9 @@ static struct option builtin_config_options[] = { 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, "includes", &respect_includes, N_("respect include directives on lookup")), + OPT_BOOL(0, "name-only", &omit_values, N_("show variable names only")), + OPT_BOOL(0, "includes", &respect_includes_opt, 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(), }; @@ -89,9 +94,29 @@ 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); @@ -106,48 +131,42 @@ struct strbuf_list { static int format_config(struct strbuf *buf, const char *key_, const char *value_) { - int must_free_vptr = 0; - int must_print_delim = 0; - char value[256]; - const char *vptr = value; - - strbuf_init(buf, 0); - - if (show_keys) { + if (show_origin) + show_config_origin(buf); + if (show_keys) strbuf_addstr(buf, key_); - must_print_delim = 1; - } - if (types == TYPE_INT) - sprintf(value, "%"PRId64, - git_config_int64(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) { - if (git_config_pathname(&vptr, key_, value_) < 0) - return -1; - must_free_vptr = 1; - } else if (value_) { - vptr = value_; - } else { - /* Just show the key name */ - vptr = ""; - must_print_delim = 0; - } + if (!omit_values) { + if (show_keys) + strbuf_addch(buf, key_delim); - if (must_print_delim) - strbuf_addch(buf, key_delim); - strbuf_addstr(buf, vptr); + 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); - - if (must_free_vptr) - free((char *)vptr); return 0; } @@ -164,6 +183,7 @@ static int collect_config(const char *key_, const char *value_, void *cb) return 0; ALLOC_GROW(values->items, values->nr + 1, values->alloc); + strbuf_init(&values->items[values->nr], 0); return format_config(&values->items[values->nr++], key_, value_); } @@ -193,7 +213,7 @@ 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_); + error("invalid key pattern: %s", key_); free(key_regexp); key_regexp = NULL; ret = CONFIG_INVALID_PATTERN; @@ -214,7 +234,7 @@ 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; @@ -223,7 +243,7 @@ static int get_value(const char *key_, const char *regex_) } git_config_with_options(collect_config, &values, - &given_config_source, respect_includes); + &given_config_source, &config_options); ret = !values.nr; @@ -251,8 +271,6 @@ free_strings: static char *normalize_value(const char *key, const char *value) { - char *normalized; - if (!value) return NULL; @@ -263,27 +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) { - int64_t v = git_config_int64(key, value); - sprintf(normalized, "%"PRId64, 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; @@ -309,7 +321,7 @@ static void get_color(const char *var, const char *def_color) get_color_found = 0; parsed_color[0] = '\0'; git_config_with_options(git_get_color_config, NULL, - &given_config_source, respect_includes); + &given_config_source, &config_options); if (!get_color_found && def_color) { if (color_parse(def_color, parsed_color) < 0) @@ -341,7 +353,7 @@ static int get_colorbool(const char *var, int print) get_diff_color_found = -1; get_color_ui_found = -1; git_config_with_options(git_get_colorbool_config, NULL, - &given_config_source, respect_includes); + &given_config_source, &config_options); if (get_colorbool_found < 0) { if (!strcmp(get_colorbool_slot, "color.diff")) @@ -365,6 +377,9 @@ static int get_colorbool(const char *var, int print) 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"); @@ -402,6 +417,7 @@ static int urlmatch_collect_fn(const char *var, const char *value, void *cb) 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 }; @@ -426,18 +442,17 @@ static int get_urlmatch(const char *var, const char *url) } git_config_with_options(urlmatch_config_entry, &config, - &given_config_source, respect_includes); + &given_config_source, &config_options); + + ret = !values.nr; for_each_string_list_item(item, &values) { struct urlmatch_current_candidate_value *matched = item->util; - struct strbuf key = STRBUF_INIT; struct strbuf buf = STRBUF_INIT; - strbuf_addstr(&key, item->string); - format_config(&buf, key.buf, + format_config(&buf, item->string, matched->value_is_null ? NULL : matched->value.buf); fwrite(buf.buf, 1, buf.len, stdout); - strbuf_release(&key); strbuf_release(&buf); strbuf_release(&matched->value); @@ -447,7 +462,7 @@ static int get_urlmatch(const char *var, const char *url) free(config.url.url); free((void *)config.section); - return 0; + return ret; } static char *default_user_config(void) @@ -481,6 +496,9 @@ int cmd_config(int argc, const char **argv, const char *prefix) usage_with_options(builtin_config_usage, builtin_config_options); } + if (use_local_config && nongit) + die(_("--local can only be used inside a git repository")); + if (given_config_source.file && !strcmp(given_config_source.file, "-")) { given_config_source.file = NULL; @@ -488,7 +506,7 @@ int cmd_config(int argc, const char **argv, const char *prefix) } if (use_global_config) { - char *user_config = expand_user_path("~/.gitconfig"); + char *user_config = expand_user_path("~/.gitconfig", 0); char *xdg_config = xdg_config_home("config"); if (!user_config) @@ -513,13 +531,13 @@ int cmd_config(int argc, const char **argv, const char *prefix) 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)); + prefix_filename(prefix, given_config_source.file); } - if (respect_includes == -1) - respect_includes = !given_config_source.file; + if (respect_includes_opt == -1) + config_options.respect_includes = !given_config_source.file; + else + config_options.respect_includes = respect_includes_opt; if (end_null) { term = '\0'; @@ -549,12 +567,24 @@ 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_with_options(show_all_config, NULL, &given_config_source, - respect_includes) < 0) { + &config_options) < 0) { if (given_config_source.file) die_errno("unable to read config file '%s'", given_config_source.file); @@ -573,11 +603,12 @@ int cmd_config(int argc, const char **argv, const char *prefix) if (given_config_source.blob) die("editing blobs is not supported"); git_config(git_default_config, NULL); - config_file = xstrdup(given_config_source.file ? - given_config_source.file : git_path("config")); + config_file = given_config_source.file ? + xstrdup(given_config_source.file) : + git_pathdup("config"); if (use_global_config) { int fd = open(config_file, O_CREAT | O_EXCL | O_WRONLY, 0666); - if (fd) { + if (fd >= 0) { char *content = default_user_config(); write_str_in_full(fd, content); free(content); @@ -594,33 +625,33 @@ int cmd_config(int argc, const char **argv, const char *prefix) check_write(); check_argc(argc, 2, 2); value = normalize_value(argv[0], argv[1]); - ret = git_config_set_in_file(given_config_source.file, 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 --replace-all to change %s.", argv[0]); + error(_("cannot overwrite multiple values with a single value\n" + " 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_in_file(given_config_source.file, - 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_in_file(given_config_source.file, - argv[0], value, - CONFIG_REGEX_NONE, 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_in_file(given_config_source.file, - 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); @@ -646,17 +677,17 @@ int cmd_config(int argc, const char **argv, const char *prefix) check_write(); check_argc(argc, 1, 2); if (argc == 2) - return git_config_set_multivar_in_file(given_config_source.file, - 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_in_file(given_config_source.file, - 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_in_file(given_config_source.file, - 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; diff --git a/builtin/count-objects.c b/builtin/count-objects.c index e47ef0b1af..acb05940fc 100644 --- a/builtin/count-objects.c +++ b/builtin/count-objects.c @@ -8,6 +8,7 @@ #include "dir.h" #include "builtin.h" #include "parse-options.h" +#include "quote.h" static unsigned long garbage; static off_t size_garbage; @@ -15,9 +16,31 @@ static int verbose; static unsigned long loose, packed, packed_loose; static off_t loose_size; -static void real_report_garbage(const char *desc, const char *path) +static const char *bits_to_msg(unsigned seen_bits) +{ + 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); @@ -27,10 +50,10 @@ static void real_report_garbage(const char *desc, const char *path) static void loose_garbage(const char *path) { if (verbose) - report_garbage("garbage found", path); + report_garbage(PACKDIR_FILE_GARBAGE, path); } -static int count_loose(const unsigned char *sha1, const char *path, void *data) +static int count_loose(const struct object_id *oid, const char *path, void *data) { struct stat st; @@ -39,7 +62,7 @@ static int count_loose(const unsigned char *sha1, const char *path, void *data) else { loose_size += on_disk_bytes(st); loose++; - if (verbose && has_sha1_pack(sha1)) + if (verbose && has_sha1_pack(oid->hash)) packed_loose++; } return 0; @@ -51,6 +74,14 @@ static int count_cruft(const char *basename, const char *path, void *data) return 0; } +static int print_alternate(struct alternate_object_database *alt, void *data) +{ + printf("alternate: "); + quote_c_style(alt->path, NULL, stdout, 0); + putchar('\n'); + return 0; +} + static char const * const count_objects_usage[] = { N_("git count-objects [-v] [-H | --human-readable]"), NULL @@ -66,12 +97,16 @@ int cmd_count_objects(int argc, const char **argv, const char *prefix) OPT_END(), }; + git_config(git_default_config, NULL); + argc = parse_options(argc, argv, prefix, opts, count_objects_usage, 0); /* we do not take arguments other than flags for now */ if (argc) usage_with_options(count_objects_usage, opts); - if (verbose) + 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); @@ -116,6 +151,7 @@ int cmd_count_objects(int argc, const char **argv, const char *prefix) printf("prune-packable: %lu\n", packed_loose); printf("garbage: %lu\n", garbage); printf("size-garbage: %s\n", garbage_buf.buf); + foreach_alt_odb(print_alternate, NULL); strbuf_release(&loose_buf); strbuf_release(&pack_buf); strbuf_release(&garbage_buf); diff --git a/builtin/describe.c b/builtin/describe.c index e00a75b121..893c8789f4 100644 --- a/builtin/describe.c +++ b/builtin/describe.c @@ -9,6 +9,7 @@ #include "diff.h" #include "hashmap.h" #include "argv-array.h" +#include "run-command.h" #define SEEN (1u << 0) #define MAX_TAGS (FLAG_BITS - 1) @@ -28,9 +29,10 @@ static int abbrev = -1; /* unspecified */ static int max_candidates = 10; static struct hashmap names; static int have_util; -static const char *pattern; +static struct string_list patterns = STRING_LIST_INIT_NODUP; +static struct string_list exclude_patterns = STRING_LIST_INIT_NODUP; static int always; -static const char *dirty; +static const char *suffix, *dirty, *broken; /* diff-index command arguments to check if working tree is dirty. */ static const char *diff_index_args[] = { @@ -39,32 +41,32 @@ static const char *diff_index_args[] = { struct commit_name { struct hashmap_entry entry; - unsigned char peeled[20]; + struct object_id peeled; struct tag *tag; unsigned prio:2; /* annotated tag = 2, tag = 1, head = 0 */ unsigned name_checked:1; - unsigned char sha1[20]; + struct object_id oid; char *path; }; static const char *prio_names[] = { - "head", "lightweight", "annotated", + N_("head"), N_("lightweight"), N_("annotated"), }; static int commit_name_cmp(const struct commit_name *cn1, const struct commit_name *cn2, const void *peeled) { - return hashcmp(cn1->peeled, peeled ? peeled : cn2->peeled); + return oidcmp(&cn1->peeled, peeled ? peeled : &cn2->peeled); } -static inline struct commit_name *find_commit_name(const unsigned char *peeled) +static inline struct commit_name *find_commit_name(const struct object_id *peeled) { - return hashmap_get_from_hash(&names, sha1hash(peeled), peeled); + return hashmap_get_from_hash(&names, sha1hash(peeled->hash), peeled->hash); } static int replace_name(struct commit_name *e, int prio, - const unsigned char *sha1, + const struct object_id *oid, struct tag **tag) { if (!e || e->prio < prio) @@ -77,13 +79,13 @@ static int replace_name(struct commit_name *e, struct tag *t; if (!e->tag) { - t = lookup_tag(e->sha1); + t = lookup_tag(&e->oid); if (!t || parse_tag(t)) return 1; e->tag = t; } - t = lookup_tag(sha1); + t = lookup_tag(oid); if (!t || parse_tag(t)) return 0; *tag = t; @@ -96,48 +98,79 @@ static int replace_name(struct commit_name *e, } static void add_to_known_names(const char *path, - const unsigned char *peeled, + const struct object_id *peeled, int prio, - const unsigned char *sha1) + const struct object_id *oid) { struct commit_name *e = find_commit_name(peeled); struct tag *tag = NULL; - if (replace_name(e, prio, sha1, &tag)) { + if (replace_name(e, prio, oid, &tag)) { if (!e) { e = xmalloc(sizeof(struct commit_name)); - hashcpy(e->peeled, peeled); - hashmap_entry_init(e, sha1hash(peeled)); + oidcpy(&e->peeled, peeled); + hashmap_entry_init(e, sha1hash(peeled->hash)); hashmap_add(&names, e); e->path = NULL; } e->tag = tag; e->prio = prio; e->name_checked = 0; - hashcpy(e->sha1, sha1); + oidcpy(&e->oid, oid); 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 is_tag = starts_with(path, "refs/tags/"); - unsigned char peeled[20]; + struct object_id peeled; int is_annotated, prio; /* Reject anything outside refs/tags/ unless --all */ if (!all && !is_tag) return 0; - /* Accept only tags that match the pattern, if given */ - if (pattern && (!is_tag || wildmatch(pattern, path + 10, 0, NULL))) - return 0; + /* + * If we're given exclude patterns, first exclude any tag which match + * any of the exclude pattern. + */ + if (exclude_patterns.nr) { + struct string_list_item *item; + + if (!is_tag) + return 0; + + for_each_string_list_item(item, &exclude_patterns) { + if (!wildmatch(item->string, path + 10, 0, NULL)) + return 0; + } + } + + /* + * If we're given patterns, accept only tags which match at least one + * pattern. + */ + if (patterns.nr) { + struct string_list_item *item; + + if (!is_tag) + return 0; + + for_each_string_list_item(item, &patterns) { + if (!wildmatch(item->string, path + 10, 0, NULL)) + break; + + /* If we get here, no pattern matched. */ + return 0; + } + } /* Is it annotated? */ - if (!peel_ref(path, peeled)) { - is_annotated = !!hashcmp(sha1, peeled); + if (!peel_ref(path, peeled.hash)) { + is_annotated = !!oidcmp(oid, &peeled); } else { - hashcpy(peeled, sha1); + oidcpy(&peeled, oid); is_annotated = 0; } @@ -154,7 +187,7 @@ static int get_name(const char *path, const unsigned char *sha1, int flag, void else prio = 0; - add_to_known_names(all ? path + 5 : path + 10, peeled, prio, sha1); + add_to_known_names(all ? path + 5 : path + 10, &peeled, prio, oid); return 0; } @@ -212,7 +245,7 @@ static unsigned long finish_depth_computation( static void display_name(struct commit_name *n) { if (n->prio == 2 && !n->tag) { - n->tag = lookup_tag(n->sha1); + n->tag = lookup_tag(&n->oid); if (!n->tag || parse_tag(n->tag)) die(_("annotated tag %s not available"), n->path); } @@ -230,14 +263,14 @@ static void display_name(struct commit_name *n) printf("%s", n->path); } -static void show_suffix(int depth, const unsigned char *sha1) +static void show_suffix(int depth, const struct object_id *oid) { - printf("-%d-g%s", depth, find_unique_abbrev(sha1, abbrev)); + printf("-%d-g%s", depth, find_unique_abbrev(oid->hash, abbrev)); } static void describe(const char *arg, int last_one) { - unsigned char sha1[20]; + struct object_id oid; struct commit *cmit, *gave_up_on = NULL; struct commit_list *list; struct commit_name *n; @@ -246,28 +279,28 @@ static void describe(const char *arg, int last_one) unsigned long seen_commits = 0; unsigned int unannotated_cnt = 0; - if (get_sha1(arg, sha1)) + if (get_oid(arg, &oid)) die(_("Not a valid object name %s"), arg); - cmit = lookup_commit_reference(sha1); + cmit = lookup_commit_reference(&oid); 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); 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); - if (dirty) - printf("%s", dirty); + show_suffix(0, n->tag ? &n->tag->tagged->oid : &oid); + if (suffix) + printf("%s", suffix); printf("\n"); return; } 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); @@ -276,7 +309,7 @@ static void describe(const char *arg, int last_one) 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); + c = lookup_commit_reference_gently(&n->peeled, 1); if (c) c->util = n; } @@ -317,7 +350,7 @@ 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) { @@ -334,25 +367,25 @@ static void describe(const char *arg, int last_one) } 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)); - if (dirty) - printf("%s", dirty); + printf("%s", find_unique_abbrev(oid->hash, abbrev)); + if (suffix) + printf("%s", suffix); printf("\n"); return; } 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); + QSORT(all_matches, match_cnt, compare_pt); if (gave_up_on) { commit_list_insert_by_date(gave_up_on, &list); @@ -362,10 +395,19 @@ static void describe(const char *arg, int last_one) free_commit_list(list); if (debug) { + static int label_width = -1; + if (label_width < 0) { + int i, w; + for (i = 0; i < ARRAY_SIZE(prio_names); i++) { + w = strlen(_(prio_names[i])); + if (label_width < w) + label_width = w; + } + } for (cur_match = 0; cur_match < match_cnt; cur_match++) { struct possible_tag *t = &all_matches[cur_match]; - fprintf(stderr, " %-11s %8d %s\n", - prio_names[t->name->prio], + fprintf(stderr, " %-*s %8d %s\n", + label_width, _(prio_names[t->name->prio]), t->depth, t->name->path); } fprintf(stderr, _("traversed %lu commits\n"), seen_commits); @@ -374,15 +416,15 @@ 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); - if (dirty) - printf("%s", dirty); + show_suffix(all_matches[0].depth, &cmit->object.oid); + if (suffix) + printf("%s", suffix); printf("\n"); if (!last_one) @@ -404,13 +446,18 @@ int cmd_describe(int argc, const char **argv, const char *prefix) N_("only output exact matches"), 0), OPT_INTEGER(0, "candidates", &max_candidates, N_("consider <n> most recent tags (default: 10)")), - OPT_STRING(0, "match", &pattern, N_("pattern"), + OPT_STRING_LIST(0, "match", &patterns, N_("pattern"), N_("only consider tags matching <pattern>")), + OPT_STRING_LIST(0, "exclude", &exclude_patterns, N_("pattern"), + N_("do not 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"}, + {OPTION_STRING, 0, "broken", &broken, N_("mark"), + N_("append <mark> on broken working tree (default: \"-broken\")"), + PARSE_OPT_OPTARG, NULL, (intptr_t) "-broken"}, OPT_END(), }; @@ -430,6 +477,7 @@ int cmd_describe(int argc, const char **argv, const char *prefix) die(_("--long is incompatible with --abbrev=0")); if (contains) { + struct string_list_item *item; struct argv_array args; argv_array_init(&args); @@ -440,13 +488,15 @@ int cmd_describe(int argc, const char **argv, const char *prefix) argv_array_push(&args, "--always"); if (!all) { argv_array_push(&args, "--tags"); - if (pattern) - argv_array_pushf(&args, "--refs=refs/tags/%s", pattern); - } - while (*argv) { - argv_array_push(&args, *argv); - argv++; + for_each_string_list_item(item, &patterns) + argv_array_pushf(&args, "--refs=refs/tags/%s", item->string); + for_each_string_list_item(item, &exclude_patterns) + argv_array_pushf(&args, "--exclude=refs/tags/%s", item->string); } + if (argc) + argv_array_pushv(&args, argv); + else + argv_array_push(&args, "HEAD"); return cmd_name_rev(args.argc, args.argv, prefix); } @@ -456,7 +506,28 @@ int cmd_describe(int argc, const char **argv, const char *prefix) die(_("No names found, cannot describe anything.")); if (argc == 0) { - if (dirty) { + if (broken) { + struct child_process cp = CHILD_PROCESS_INIT; + argv_array_pushv(&cp.args, diff_index_args); + cp.git_cmd = 1; + cp.no_stdin = 1; + cp.no_stdout = 1; + + if (!dirty) + dirty = "-dirty"; + + switch (run_command(&cp)) { + case 0: + suffix = NULL; + break; + case 1: + suffix = dirty; + break; + default: + /* diff-index aborted abnormally */ + suffix = broken; + } + } else if (dirty) { static struct lock_file index_lock; int fd; @@ -469,11 +540,15 @@ int cmd_describe(int argc, const char **argv, const char *prefix) if (!cmd_diff_index(ARRAY_SIZE(diff_index_args) - 1, diff_index_args, prefix)) - dirty = NULL; + suffix = NULL; + else + suffix = dirty; } describe("HEAD", 1); } else if (dirty) { die(_("--dirty is incompatible with commit-ishes")); + } else if (broken) { + die(_("--broken is incompatible with commit-ishes")); } else { while (argc-- > 0) describe(*argv++, argc == 0); diff --git a/builtin/diff-files.c b/builtin/diff-files.c index 8ed2eb8813..a572da9d51 100644 --- a/builtin/diff-files.c +++ b/builtin/diff-files.c @@ -20,10 +20,11 @@ int cmd_diff_files(int argc, const char **argv, const char *prefix) int result; unsigned options = 0; + git_config(git_diff_basic_config, NULL); /* no "diff" UI options */ init_revisions(&rev, 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] == '-') { diff --git a/builtin/diff-index.c b/builtin/diff-index.c index d979824f93..f084826a29 100644 --- a/builtin/diff-index.c +++ b/builtin/diff-index.c @@ -17,10 +17,11 @@ int cmd_diff_index(int argc, const char **argv, const char *prefix) int i; int result; + git_config(git_diff_basic_config, NULL); /* no "diff" UI options */ init_revisions(&rev, 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++) { diff --git a/builtin/diff-tree.c b/builtin/diff-tree.c index 12b683d021..492245f428 100644 --- a/builtin/diff-tree.c +++ b/builtin/diff-tree.c @@ -7,51 +7,49 @@ static struct rev_info log_tree_opt; -static int diff_tree_commit_sha1(const unsigned char *sha1) +static int diff_tree_commit_sha1(const struct object_id *oid) { - struct commit *commit = lookup_commit_reference(sha1); + struct commit *commit = lookup_commit_reference(oid); if (!commit) return -1; return log_tree_commit(&log_tree_opt, commit); } /* Diff one or more commits. */ -static int stdin_diff_commit(struct commit *commit, char *line, int len) +static int stdin_diff_commit(struct commit *commit, const char *p) { - unsigned char sha1[20]; - 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; - - /* Free the real parent list */ - free_commit_list(commit->parents); - commit->parents = NULL; - pptr = &(commit->parents); - while (line[pos] && !get_sha1_hex(line + pos, sha1)) { - struct commit *parent = lookup_commit(sha1); - if (parent) { - pptr = &commit_list_insert(parent, pptr)->next; - } - pos += 41; + struct object_id oid; + struct commit_list **pptr = NULL; + + /* Graft the fake parents locally to the commit */ + while (isspace(*p++) && !parse_oid_hex(p, &oid, &p)) { + struct commit *parent = lookup_commit(&oid); + if (!pptr) { + /* Free the real parent list */ + free_commit_list(commit->parents); + commit->parents = NULL; + pptr = &(commit->parents); + } + if (parent) { + pptr = &commit_list_insert(parent, pptr)->next; } } return log_tree_commit(&log_tree_opt, commit); } /* Diff two trees. */ -static int stdin_diff_trees(struct tree *tree1, char *line, int len) +static int stdin_diff_trees(struct tree *tree1, const char *p) { - unsigned char sha1[20]; + struct object_id oid; struct tree *tree2; - if (len != 82 || !isspace(line[40]) || get_sha1_hex(line + 41, sha1)) + if (!isspace(*p++) || parse_oid_hex(p, &oid, &p) || *p) return error("Need exactly two trees, separated by a space"); - tree2 = lookup_tree(sha1); + tree2 = lookup_tree(&oid); 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; @@ -60,23 +58,24 @@ static int stdin_diff_trees(struct tree *tree1, char *line, int len) static int diff_tree_stdin(char *line) { int len = strlen(line); - unsigned char sha1[20]; + struct object_id oid; struct object *obj; + const char *p; if (!len || line[len-1] != '\n') return -1; line[len-1] = 0; - if (get_sha1_hex(line, sha1)) + if (parse_oid_hex(line, &oid, &p)) return -1; - obj = parse_object(sha1); + obj = parse_object(&oid); if (!obj) return -1; if (obj->type == OBJ_COMMIT) - return stdin_diff_commit((struct commit *)obj, line, len); + return stdin_diff_commit((struct commit *)obj, p); if (obj->type == OBJ_TREE) - return stdin_diff_trees((struct tree *)obj, line, len); + return stdin_diff_trees((struct tree *)obj, p); error("Object %s is a %s, not a commit or tree", - sha1_to_hex(sha1), typename(obj->type)); + oid_to_hex(&oid), typename(obj->type)); return -1; } @@ -106,14 +105,16 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix) struct setup_revision_opt s_r_opt; int read_stdin = 0; + git_config(git_diff_basic_config, NULL); /* no "diff" UI options */ init_revisions(opt, prefix); gitmodules_config(); - git_config(git_diff_basic_config, NULL); /* no "diff" UI options */ opt->abbrev = 0; opt->diff = 1; 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) { @@ -127,9 +128,11 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix) } /* - * NOTE! We expect "a ^b" to be equal to "a..b", so we - * reverse the order of the objects if the second one - * is marked UNINTERESTING. + * NOTE! We expect "a..b" to expand to "^a b" but it is + * perfectly valid for revision range parser to yield "b ^a", + * which means the same thing. If we get the latter, i.e. the + * second one is marked UNINTERESTING, we recover the original + * order the user gave, i.e. "a..b", by swapping the trees. */ nr_sha1 = opt->pending.nr; switch (nr_sha1) { @@ -139,18 +142,16 @@ 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); break; case 2: tree1 = opt->pending.objects[0].item; tree2 = opt->pending.objects[1].item; if (tree2->flags & UNINTERESTING) { - struct object *tmp = tree2; - tree2 = tree1; - tree1 = tmp; + SWAP(tree2, tree1); } - diff_tree_sha1(tree1->sha1, - tree2->sha1, + diff_tree_sha1(tree1->oid.hash, + tree2->oid.hash, "", &opt->diffopt); log_tree_diff_flush(opt); break; @@ -164,9 +165,9 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix) opt->diffopt.setup |= (DIFF_SETUP_USE_SIZE_CACHE | DIFF_SETUP_USE_CACHE); while (fgets(line, sizeof(line), stdin)) { - unsigned char sha1[20]; + struct object_id oid; - if (get_sha1_hex(line, sha1)) { + if (get_oid_hex(line, &oid)) { fputs(line, stdout); fflush(stdout); } diff --git a/builtin/diff.c b/builtin/diff.c index 4326fa56bf..0c8f86e40d 100644 --- a/builtin/diff.c +++ b/builtin/diff.c @@ -20,55 +20,51 @@ #define DIFF_NO_INDEX_EXPLICIT 1 #define DIFF_NO_INDEX_IMPLICIT 2 -struct blobinfo { - unsigned char sha1[20]; - const char *name; - unsigned mode; -}; - static const char builtin_diff_usage[] = "git diff [<options>] [<commit> [<commit>]] [--] [<path>...]"; +static const char *blob_path(struct object_array_entry *entry) +{ + return entry->path ? entry->path : entry->name; +} + 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) + const struct object_id *old_oid, + const struct object_id *new_oid, + int old_oid_valid, + int new_oid_valid, + const char *old_path, + const char *new_path) { struct diff_filespec *one, *two; - if (!is_null_sha1(old_sha1) && !is_null_sha1(new_sha1) && - !hashcmp(old_sha1, new_sha1) && (old_mode == new_mode)) + if (!is_null_oid(old_oid) && !is_null_oid(new_oid) && + !oidcmp(old_oid, new_oid) && (old_mode == new_mode)) return; if (DIFF_OPT_TST(opt, REVERSE_DIFF)) { - unsigned tmp; - const unsigned char *tmp_u; - const char *tmp_c; - tmp = old_mode; old_mode = new_mode; new_mode = tmp; - tmp_u = old_sha1; old_sha1 = new_sha1; new_sha1 = tmp_u; - tmp_c = old_name; old_name = new_name; new_name = tmp_c; + SWAP(old_mode, new_mode); + SWAP(old_oid, new_oid); + SWAP(old_path, new_path); } if (opt->prefix && - (strncmp(old_name, opt->prefix, opt->prefix_length) || - strncmp(new_name, opt->prefix, opt->prefix_length))) + (strncmp(old_path, opt->prefix, opt->prefix_length) || + strncmp(new_path, opt->prefix, opt->prefix_length))) return; - one = alloc_filespec(old_name); - two = alloc_filespec(new_name); - fill_filespec(one, old_sha1, old_sha1_valid, old_mode); - fill_filespec(two, new_sha1, new_sha1_valid, new_mode); + one = alloc_filespec(old_path); + two = alloc_filespec(new_path); + fill_filespec(one, old_oid->hash, old_oid_valid, old_mode); + fill_filespec(two, new_oid->hash, new_oid_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) + struct object_array_entry **blob) { /* Blob vs file in the working tree*/ struct stat st; @@ -87,14 +83,15 @@ static int builtin_diff_b_f(struct rev_info *revs, diff_set_mnemonic_prefix(&revs->diffopt, "o/", "w/"); - if (blob[0].mode == S_IFINVALID) - blob[0].mode = canon_mode(st.st_mode); + if (blob[0]->mode == S_IFINVALID) + blob[0]->mode = canon_mode(st.st_mode); stuff_change(&revs->diffopt, - blob[0].mode, canon_mode(st.st_mode), - blob[0].sha1, null_sha1, + blob[0]->mode, canon_mode(st.st_mode), + &blob[0]->item->oid, &null_oid, 1, 0, - path, path); + blob[0]->path ? blob[0]->path : path, + path); diffcore_std(&revs->diffopt); diff_flush(&revs->diffopt); return 0; @@ -102,24 +99,24 @@ static int builtin_diff_b_f(struct rev_info *revs, static int builtin_diff_blobs(struct rev_info *revs, int argc, const char **argv, - struct blobinfo *blob) + struct object_array_entry **blob) { unsigned mode = canon_mode(S_IFREG | 0644); if (argc > 1) usage(builtin_diff_usage); - if (blob[0].mode == S_IFINVALID) - blob[0].mode = mode; + if (blob[0]->mode == S_IFINVALID) + blob[0]->mode = mode; - if (blob[1].mode == S_IFINVALID) - blob[1].mode = mode; + if (blob[1]->mode == S_IFINVALID) + blob[1]->mode = mode; stuff_change(&revs->diffopt, - blob[0].mode, blob[1].mode, - blob[0].sha1, blob[1].sha1, + blob[0]->mode, blob[1]->mode, + &blob[0]->item->oid, &blob[1]->item->oid, 1, 1, - blob[0].name, blob[1].name); + blob_path(blob[0]), blob_path(blob[1])); diffcore_std(&revs->diffopt); diff_flush(&revs->diffopt); return 0; @@ -163,7 +160,7 @@ static int builtin_diff_tree(struct rev_info *revs, struct object_array_entry *ent0, struct object_array_entry *ent1) { - const unsigned char *(sha1[2]); + const struct object_id *(oid[2]); int swap = 0; if (argc > 1) @@ -175,9 +172,9 @@ static int builtin_diff_tree(struct rev_info *revs, */ if (ent1->item->flags & UNINTERESTING) swap = 1; - sha1[swap] = ent0->item->sha1; - sha1[1 - swap] = ent1->item->sha1; - diff_tree_sha1(sha1[0], sha1[1], "", &revs->diffopt); + oid[swap] = &ent0->item->oid; + oid[1 - swap] = &ent1->item->oid; + diff_tree_sha1(oid[0]->hash, oid[1]->hash, "", &revs->diffopt); log_tree_diff_flush(revs); return 0; } @@ -187,7 +184,7 @@ static int builtin_diff_combined(struct rev_info *revs, struct object_array_entry *ent, int ents) { - struct sha1_array parents = SHA1_ARRAY_INIT; + struct oid_array parents = OID_ARRAY_INIT; int i; if (argc > 1) @@ -196,10 +193,10 @@ 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; for (i = 1; i < ents; i++) - sha1_array_append(&parents, ent[i].item->sha1); - diff_tree_combined(ent[0].item->sha1, &parents, + oid_array_append(&parents, &ent[i].item->oid); + diff_tree_combined(ent[0].item->oid.hash, &parents, revs->dense_combined_merges, revs); - sha1_array_clear(&parents); + oid_array_clear(&parents); return 0; } @@ -262,7 +259,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix) struct rev_info rev; struct object_array ent = OBJECT_ARRAY_INIT; int blobs = 0, paths = 0; - struct blobinfo blob[2]; + struct object_array_entry *blob[2]; int nongit = 0, no_index = 0; int result = 0; @@ -301,24 +298,27 @@ int cmd_diff(int argc, const char **argv, const char *prefix) break; } - if (!no_index) - prefix = setup_git_directory_gently(&nongit); + 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) { + /* + * 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); @@ -341,7 +341,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix) } if (no_index) /* If this is a no-index diff, just run it and exit there. */ - diff_no_index(&rev, argc, argv, prefix); + diff_no_index(&rev, argc, argv); /* Otherwise, we are doing the usual "git" diff */ rev.diffopt.skip_stat_unmatch = !!diff_auto_refresh_index; @@ -381,7 +381,7 @@ 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(EMPTY_TREE_SHA1_BIN); + tree = lookup_tree(&empty_tree_oid); add_pending_object(&rev, &tree->object, "HEAD"); } break; @@ -395,7 +395,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix) const char *name = entry->name; int flags = (obj->flags & UNINTERESTING); if (!obj->parsed) - obj = parse_object(obj->sha1); + obj = parse_object(&obj->oid); obj = deref_tag(obj, NULL, 0); if (!obj) die(_("invalid object '%s' given."), name); @@ -408,9 +408,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix) } else if (obj->type == OBJ_BLOB) { if (2 <= blobs) die(_("more than two blobs given: '%s'"), name); - hashcpy(blob[blobs].sha1, obj->sha1); - blob[blobs].name = name; - blob[blobs].mode = entry->mode; + blob[blobs] = entry; blobs++; } else { diff --git a/builtin/difftool.c b/builtin/difftool.c new file mode 100644 index 0000000000..b9a892f269 --- /dev/null +++ b/builtin/difftool.c @@ -0,0 +1,748 @@ +/* + * "git difftool" builtin command + * + * This is a wrapper around the GIT_EXTERNAL_DIFF-compatible + * git-difftool--helper script. + * + * This script exports GIT_EXTERNAL_DIFF and GIT_PAGER for use by git. + * The GIT_DIFF* variables are exported for use by git-difftool--helper. + * + * Any arguments that are unknown to this script are forwarded to 'git diff'. + * + * Copyright (C) 2016 Johannes Schindelin + */ +#include "cache.h" +#include "builtin.h" +#include "run-command.h" +#include "exec_cmd.h" +#include "parse-options.h" +#include "argv-array.h" +#include "strbuf.h" +#include "lockfile.h" +#include "dir.h" + +static char *diff_gui_tool; +static int trust_exit_code; + +static const char *const builtin_difftool_usage[] = { + N_("git difftool [<options>] [<commit> [<commit>]] [--] [<path>...]"), + NULL +}; + +static int difftool_config(const char *var, const char *value, void *cb) +{ + if (!strcmp(var, "diff.guitool")) { + diff_gui_tool = xstrdup(value); + return 0; + } + + if (!strcmp(var, "difftool.trustexitcode")) { + trust_exit_code = git_config_bool(var, value); + return 0; + } + + return git_default_config(var, value, cb); +} + +static int print_tool_help(void) +{ + const char *argv[] = { "mergetool", "--tool-help=diff", NULL }; + return run_command_v_opt(argv, RUN_GIT_CMD); +} + +static int parse_index_info(char *p, int *mode1, int *mode2, + struct object_id *oid1, struct object_id *oid2, + char *status) +{ + if (*p != ':') + return error("expected ':', got '%c'", *p); + *mode1 = (int)strtol(p + 1, &p, 8); + if (*p != ' ') + return error("expected ' ', got '%c'", *p); + *mode2 = (int)strtol(p + 1, &p, 8); + if (*p != ' ') + return error("expected ' ', got '%c'", *p); + if (get_oid_hex(++p, oid1)) + return error("expected object ID, got '%s'", p + 1); + p += GIT_SHA1_HEXSZ; + if (*p != ' ') + return error("expected ' ', got '%c'", *p); + if (get_oid_hex(++p, oid2)) + return error("expected object ID, got '%s'", p + 1); + p += GIT_SHA1_HEXSZ; + if (*p != ' ') + return error("expected ' ', got '%c'", *p); + *status = *++p; + if (!*status) + return error("missing status"); + if (p[1] && !isdigit(p[1])) + return error("unexpected trailer: '%s'", p + 1); + return 0; +} + +/* + * Remove any trailing slash from $workdir + * before starting to avoid double slashes in symlink targets. + */ +static void add_path(struct strbuf *buf, size_t base_len, const char *path) +{ + strbuf_setlen(buf, base_len); + if (buf->len && buf->buf[buf->len - 1] != '/') + strbuf_addch(buf, '/'); + strbuf_addstr(buf, path); +} + +/* + * Determine whether we can simply reuse the file in the worktree. + */ +static int use_wt_file(const char *workdir, const char *name, + struct object_id *oid) +{ + struct strbuf buf = STRBUF_INIT; + struct stat st; + int use = 0; + + strbuf_addstr(&buf, workdir); + add_path(&buf, buf.len, name); + + if (!lstat(buf.buf, &st) && !S_ISLNK(st.st_mode)) { + struct object_id wt_oid; + int fd = open(buf.buf, O_RDONLY); + + if (fd >= 0 && + !index_fd(wt_oid.hash, fd, &st, OBJ_BLOB, name, 0)) { + if (is_null_oid(oid)) { + oidcpy(oid, &wt_oid); + use = 1; + } else if (!oidcmp(oid, &wt_oid)) + use = 1; + } + } + + strbuf_release(&buf); + + return use; +} + +struct working_tree_entry { + struct hashmap_entry entry; + char path[FLEX_ARRAY]; +}; + +static int working_tree_entry_cmp(struct working_tree_entry *a, + struct working_tree_entry *b, void *keydata) +{ + return strcmp(a->path, b->path); +} + +/* + * The `left` and `right` entries hold paths for the symlinks hashmap, + * and a SHA-1 surrounded by brief text for submodules. + */ +struct pair_entry { + struct hashmap_entry entry; + char left[PATH_MAX], right[PATH_MAX]; + const char path[FLEX_ARRAY]; +}; + +static int pair_cmp(struct pair_entry *a, struct pair_entry *b, void *keydata) +{ + return strcmp(a->path, b->path); +} + +static void add_left_or_right(struct hashmap *map, const char *path, + const char *content, int is_right) +{ + struct pair_entry *e, *existing; + + FLEX_ALLOC_STR(e, path, path); + hashmap_entry_init(e, strhash(path)); + existing = hashmap_get(map, e, NULL); + if (existing) { + free(e); + e = existing; + } else { + e->left[0] = e->right[0] = '\0'; + hashmap_add(map, e); + } + strlcpy(is_right ? e->right : e->left, content, PATH_MAX); +} + +struct path_entry { + struct hashmap_entry entry; + char path[FLEX_ARRAY]; +}; + +static int path_entry_cmp(struct path_entry *a, struct path_entry *b, void *key) +{ + return strcmp(a->path, key ? key : b->path); +} + +static void changed_files(struct hashmap *result, const char *index_path, + const char *workdir) +{ + struct child_process update_index = CHILD_PROCESS_INIT; + struct child_process diff_files = CHILD_PROCESS_INIT; + struct strbuf index_env = STRBUF_INIT, buf = STRBUF_INIT; + const char *git_dir = absolute_path(get_git_dir()), *env[] = { + NULL, NULL + }; + FILE *fp; + + strbuf_addf(&index_env, "GIT_INDEX_FILE=%s", index_path); + env[0] = index_env.buf; + + argv_array_pushl(&update_index.args, + "--git-dir", git_dir, "--work-tree", workdir, + "update-index", "--really-refresh", "-q", + "--unmerged", NULL); + update_index.no_stdin = 1; + update_index.no_stdout = 1; + update_index.no_stderr = 1; + update_index.git_cmd = 1; + update_index.use_shell = 0; + update_index.clean_on_exit = 1; + update_index.dir = workdir; + update_index.env = env; + /* Ignore any errors of update-index */ + run_command(&update_index); + + argv_array_pushl(&diff_files.args, + "--git-dir", git_dir, "--work-tree", workdir, + "diff-files", "--name-only", "-z", NULL); + diff_files.no_stdin = 1; + diff_files.git_cmd = 1; + diff_files.use_shell = 0; + diff_files.clean_on_exit = 1; + diff_files.out = -1; + diff_files.dir = workdir; + diff_files.env = env; + if (start_command(&diff_files)) + die("could not obtain raw diff"); + fp = xfdopen(diff_files.out, "r"); + while (!strbuf_getline_nul(&buf, fp)) { + struct path_entry *entry; + FLEX_ALLOC_STR(entry, path, buf.buf); + hashmap_entry_init(entry, strhash(buf.buf)); + hashmap_add(result, entry); + } + fclose(fp); + if (finish_command(&diff_files)) + die("diff-files did not exit properly"); + strbuf_release(&index_env); + strbuf_release(&buf); +} + +static NORETURN void exit_cleanup(const char *tmpdir, int exit_code) +{ + struct strbuf buf = STRBUF_INIT; + strbuf_addstr(&buf, tmpdir); + remove_dir_recursively(&buf, 0); + if (exit_code) + warning(_("failed: %d"), exit_code); + exit(exit_code); +} + +static int ensure_leading_directories(char *path) +{ + switch (safe_create_leading_directories(path)) { + case SCLD_OK: + case SCLD_EXISTS: + return 0; + default: + return error(_("could not create leading directories " + "of '%s'"), path); + } +} + +/* + * Unconditional writing of a plain regular file is what + * "git difftool --dir-diff" wants to do for symlinks. We are preparing two + * temporary directories to be fed to a Git-unaware tool that knows how to + * show a diff of two directories (e.g. "diff -r A B"). + * + * Because the tool is Git-unaware, if a symbolic link appears in either of + * these temporary directories, it will try to dereference and show the + * difference of the target of the symbolic link, which is not what we want, + * as the goal of the dir-diff mode is to produce an output that is logically + * equivalent to what "git diff" produces. + * + * Most importantly, we want to get textual comparison of the result of the + * readlink(2). get_symlink() provides that---it returns the contents of + * the symlink that gets written to a regular file to force the external tool + * to compare the readlink(2) result as text, even on a filesystem that is + * capable of doing a symbolic link. + */ +static char *get_symlink(const struct object_id *oid, const char *path) +{ + char *data; + if (is_null_oid(oid)) { + /* The symlink is unknown to Git so read from the filesystem */ + struct strbuf link = STRBUF_INIT; + if (has_symlinks) { + if (strbuf_readlink(&link, path, strlen(path))) + die(_("could not read symlink %s"), path); + } else if (strbuf_read_file(&link, path, 128)) + die(_("could not read symlink file %s"), path); + + data = strbuf_detach(&link, NULL); + } else { + enum object_type type; + unsigned long size; + data = read_sha1_file(oid->hash, &type, &size); + if (!data) + die(_("could not read object %s for symlink %s"), + oid_to_hex(oid), path); + } + + return data; +} + +static int checkout_path(unsigned mode, struct object_id *oid, + const char *path, const struct checkout *state) +{ + struct cache_entry *ce; + int ret; + + ce = make_cache_entry(mode, oid->hash, path, 0, 0); + ret = checkout_entry(ce, state, NULL); + + free(ce); + return ret; +} + +static int run_dir_diff(const char *extcmd, int symlinks, const char *prefix, + int argc, const char **argv) +{ + char tmpdir[PATH_MAX]; + struct strbuf info = STRBUF_INIT, lpath = STRBUF_INIT; + struct strbuf rpath = STRBUF_INIT, buf = STRBUF_INIT; + struct strbuf ldir = STRBUF_INIT, rdir = STRBUF_INIT; + struct strbuf wtdir = STRBUF_INIT; + char *lbase_dir, *rbase_dir; + size_t ldir_len, rdir_len, wtdir_len; + const char *workdir, *tmp; + int ret = 0, i; + FILE *fp; + struct hashmap working_tree_dups, submodules, symlinks2; + struct hashmap_iter iter; + struct pair_entry *entry; + struct index_state wtindex; + struct checkout lstate, rstate; + int rc, flags = RUN_GIT_CMD, err = 0; + struct child_process child = CHILD_PROCESS_INIT; + const char *helper_argv[] = { "difftool--helper", NULL, NULL, NULL }; + struct hashmap wt_modified, tmp_modified; + int indices_loaded = 0; + + workdir = get_git_work_tree(); + + /* Setup temp directories */ + tmp = getenv("TMPDIR"); + xsnprintf(tmpdir, sizeof(tmpdir), "%s/git-difftool.XXXXXX", tmp ? tmp : "/tmp"); + if (!mkdtemp(tmpdir)) + return error("could not create '%s'", tmpdir); + strbuf_addf(&ldir, "%s/left/", tmpdir); + strbuf_addf(&rdir, "%s/right/", tmpdir); + strbuf_addstr(&wtdir, workdir); + if (!wtdir.len || !is_dir_sep(wtdir.buf[wtdir.len - 1])) + strbuf_addch(&wtdir, '/'); + mkdir(ldir.buf, 0700); + mkdir(rdir.buf, 0700); + + memset(&wtindex, 0, sizeof(wtindex)); + + memset(&lstate, 0, sizeof(lstate)); + lstate.base_dir = lbase_dir = xstrdup(ldir.buf); + lstate.base_dir_len = ldir.len; + lstate.force = 1; + memset(&rstate, 0, sizeof(rstate)); + rstate.base_dir = rbase_dir = xstrdup(rdir.buf); + rstate.base_dir_len = rdir.len; + rstate.force = 1; + + ldir_len = ldir.len; + rdir_len = rdir.len; + wtdir_len = wtdir.len; + + hashmap_init(&working_tree_dups, + (hashmap_cmp_fn)working_tree_entry_cmp, 0); + hashmap_init(&submodules, (hashmap_cmp_fn)pair_cmp, 0); + hashmap_init(&symlinks2, (hashmap_cmp_fn)pair_cmp, 0); + + child.no_stdin = 1; + child.git_cmd = 1; + child.use_shell = 0; + child.clean_on_exit = 1; + child.dir = prefix; + child.out = -1; + argv_array_pushl(&child.args, "diff", "--raw", "--no-abbrev", "-z", + NULL); + for (i = 0; i < argc; i++) + argv_array_push(&child.args, argv[i]); + if (start_command(&child)) + die("could not obtain raw diff"); + fp = xfdopen(child.out, "r"); + + /* Build index info for left and right sides of the diff */ + i = 0; + while (!strbuf_getline_nul(&info, fp)) { + int lmode, rmode; + struct object_id loid, roid; + char status; + const char *src_path, *dst_path; + + if (starts_with(info.buf, "::")) + die(N_("combined diff formats('-c' and '--cc') are " + "not supported in\n" + "directory diff mode('-d' and '--dir-diff').")); + + if (parse_index_info(info.buf, &lmode, &rmode, &loid, &roid, + &status)) + break; + if (strbuf_getline_nul(&lpath, fp)) + break; + src_path = lpath.buf; + + i++; + if (status != 'C' && status != 'R') { + dst_path = src_path; + } else { + if (strbuf_getline_nul(&rpath, fp)) + break; + dst_path = rpath.buf; + } + + if (S_ISGITLINK(lmode) || S_ISGITLINK(rmode)) { + strbuf_reset(&buf); + strbuf_addf(&buf, "Subproject commit %s", + oid_to_hex(&loid)); + add_left_or_right(&submodules, src_path, buf.buf, 0); + strbuf_reset(&buf); + strbuf_addf(&buf, "Subproject commit %s", + oid_to_hex(&roid)); + if (!oidcmp(&loid, &roid)) + strbuf_addstr(&buf, "-dirty"); + add_left_or_right(&submodules, dst_path, buf.buf, 1); + continue; + } + + if (S_ISLNK(lmode)) { + char *content = get_symlink(&loid, src_path); + add_left_or_right(&symlinks2, src_path, content, 0); + free(content); + } + + if (S_ISLNK(rmode)) { + char *content = get_symlink(&roid, dst_path); + add_left_or_right(&symlinks2, dst_path, content, 1); + free(content); + } + + if (lmode && status != 'C') { + if (checkout_path(lmode, &loid, src_path, &lstate)) { + ret = error("could not write '%s'", src_path); + goto finish; + } + } + + if (rmode && !S_ISLNK(rmode)) { + struct working_tree_entry *entry; + + /* Avoid duplicate working_tree entries */ + FLEX_ALLOC_STR(entry, path, dst_path); + hashmap_entry_init(entry, strhash(dst_path)); + if (hashmap_get(&working_tree_dups, entry, NULL)) { + free(entry); + continue; + } + hashmap_add(&working_tree_dups, entry); + + if (!use_wt_file(workdir, dst_path, &roid)) { + if (checkout_path(rmode, &roid, dst_path, + &rstate)) { + ret = error("could not write '%s'", + dst_path); + goto finish; + } + } else if (!is_null_oid(&roid)) { + /* + * Changes in the working tree need special + * treatment since they are not part of the + * index. + */ + struct cache_entry *ce2 = + make_cache_entry(rmode, roid.hash, + dst_path, 0, 0); + + add_index_entry(&wtindex, ce2, + ADD_CACHE_JUST_APPEND); + + add_path(&rdir, rdir_len, dst_path); + if (ensure_leading_directories(rdir.buf)) { + ret = error("could not create " + "directory for '%s'", + dst_path); + goto finish; + } + add_path(&wtdir, wtdir_len, dst_path); + if (symlinks) { + if (symlink(wtdir.buf, rdir.buf)) { + ret = error_errno("could not symlink '%s' to '%s'", wtdir.buf, rdir.buf); + goto finish; + } + } else { + struct stat st; + if (stat(wtdir.buf, &st)) + st.st_mode = 0644; + if (copy_file(rdir.buf, wtdir.buf, + st.st_mode)) { + ret = error("could not copy '%s' to '%s'", wtdir.buf, rdir.buf); + goto finish; + } + } + } + } + } + + fclose(fp); + fp = NULL; + if (finish_command(&child)) { + ret = error("error occurred running diff --raw"); + goto finish; + } + + if (!i) + goto finish; + + /* + * Changes to submodules require special treatment.This loop writes a + * temporary file to both the left and right directories to show the + * change in the recorded SHA1 for the submodule. + */ + hashmap_iter_init(&submodules, &iter); + while ((entry = hashmap_iter_next(&iter))) { + if (*entry->left) { + add_path(&ldir, ldir_len, entry->path); + ensure_leading_directories(ldir.buf); + write_file(ldir.buf, "%s", entry->left); + } + if (*entry->right) { + add_path(&rdir, rdir_len, entry->path); + ensure_leading_directories(rdir.buf); + write_file(rdir.buf, "%s", entry->right); + } + } + + /* + * Symbolic links require special treatment.The standard "git diff" + * shows only the link itself, not the contents of the link target. + * This loop replicates that behavior. + */ + hashmap_iter_init(&symlinks2, &iter); + while ((entry = hashmap_iter_next(&iter))) { + if (*entry->left) { + add_path(&ldir, ldir_len, entry->path); + ensure_leading_directories(ldir.buf); + write_file(ldir.buf, "%s", entry->left); + } + if (*entry->right) { + add_path(&rdir, rdir_len, entry->path); + ensure_leading_directories(rdir.buf); + write_file(rdir.buf, "%s", entry->right); + } + } + + strbuf_release(&buf); + + strbuf_setlen(&ldir, ldir_len); + helper_argv[1] = ldir.buf; + strbuf_setlen(&rdir, rdir_len); + helper_argv[2] = rdir.buf; + + if (extcmd) { + helper_argv[0] = extcmd; + flags = 0; + } else + setenv("GIT_DIFFTOOL_DIRDIFF", "true", 1); + rc = run_command_v_opt(helper_argv, flags); + + /* + * If the diff includes working copy files and those + * files were modified during the diff, then the changes + * should be copied back to the working tree. + * Do not copy back files when symlinks are used and the + * external tool did not replace the original link with a file. + * + * These hashes are loaded lazily since they aren't needed + * in the common case of --symlinks and the difftool updating + * files through the symlink. + */ + hashmap_init(&wt_modified, (hashmap_cmp_fn)path_entry_cmp, + wtindex.cache_nr); + hashmap_init(&tmp_modified, (hashmap_cmp_fn)path_entry_cmp, + wtindex.cache_nr); + + for (i = 0; i < wtindex.cache_nr; i++) { + struct hashmap_entry dummy; + const char *name = wtindex.cache[i]->name; + struct stat st; + + add_path(&rdir, rdir_len, name); + if (lstat(rdir.buf, &st)) + continue; + + if ((symlinks && S_ISLNK(st.st_mode)) || !S_ISREG(st.st_mode)) + continue; + + if (!indices_loaded) { + static struct lock_file lock; + strbuf_reset(&buf); + strbuf_addf(&buf, "%s/wtindex", tmpdir); + if (hold_lock_file_for_update(&lock, buf.buf, 0) < 0 || + write_locked_index(&wtindex, &lock, COMMIT_LOCK)) { + ret = error("could not write %s", buf.buf); + rollback_lock_file(&lock); + goto finish; + } + changed_files(&wt_modified, buf.buf, workdir); + strbuf_setlen(&rdir, rdir_len); + changed_files(&tmp_modified, buf.buf, rdir.buf); + add_path(&rdir, rdir_len, name); + indices_loaded = 1; + } + + hashmap_entry_init(&dummy, strhash(name)); + if (hashmap_get(&tmp_modified, &dummy, name)) { + add_path(&wtdir, wtdir_len, name); + if (hashmap_get(&wt_modified, &dummy, name)) { + warning(_("both files modified: '%s' and '%s'."), + wtdir.buf, rdir.buf); + warning(_("working tree file has been left.")); + warning("%s", ""); + err = 1; + } else if (unlink(wtdir.buf) || + copy_file(wtdir.buf, rdir.buf, st.st_mode)) + warning_errno(_("could not copy '%s' to '%s'"), + rdir.buf, wtdir.buf); + } + } + + if (err) { + warning(_("temporary files exist in '%s'."), tmpdir); + warning(_("you may want to cleanup or recover these.")); + exit(1); + } else + exit_cleanup(tmpdir, rc); + +finish: + if (fp) + fclose(fp); + + free(lbase_dir); + free(rbase_dir); + strbuf_release(&ldir); + strbuf_release(&rdir); + strbuf_release(&wtdir); + strbuf_release(&buf); + + return ret; +} + +static int run_file_diff(int prompt, const char *prefix, + int argc, const char **argv) +{ + struct argv_array args = ARGV_ARRAY_INIT; + const char *env[] = { + "GIT_PAGER=", "GIT_EXTERNAL_DIFF=git-difftool--helper", NULL, + NULL + }; + int ret = 0, i; + + if (prompt > 0) + env[2] = "GIT_DIFFTOOL_PROMPT=true"; + else if (!prompt) + env[2] = "GIT_DIFFTOOL_NO_PROMPT=true"; + + + argv_array_push(&args, "diff"); + for (i = 0; i < argc; i++) + argv_array_push(&args, argv[i]); + ret = run_command_v_opt_cd_env(args.argv, RUN_GIT_CMD, prefix, env); + exit(ret); +} + +int cmd_difftool(int argc, const char **argv, const char *prefix) +{ + int use_gui_tool = 0, dir_diff = 0, prompt = -1, symlinks = 0, + tool_help = 0; + static char *difftool_cmd = NULL, *extcmd = NULL; + struct option builtin_difftool_options[] = { + OPT_BOOL('g', "gui", &use_gui_tool, + N_("use `diff.guitool` instead of `diff.tool`")), + OPT_BOOL('d', "dir-diff", &dir_diff, + N_("perform a full-directory diff")), + { OPTION_SET_INT, 'y', "no-prompt", &prompt, NULL, + N_("do not prompt before launching a diff tool"), + PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, 0}, + { OPTION_SET_INT, 0, "prompt", &prompt, NULL, NULL, + PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_HIDDEN, + NULL, 1 }, + OPT_BOOL(0, "symlinks", &symlinks, + N_("use symlinks in dir-diff mode")), + OPT_STRING('t', "tool", &difftool_cmd, N_("<tool>"), + N_("use the specified diff tool")), + OPT_BOOL(0, "tool-help", &tool_help, + N_("print a list of diff tools that may be used with " + "`--tool`")), + OPT_BOOL(0, "trust-exit-code", &trust_exit_code, + N_("make 'git-difftool' exit when an invoked diff " + "tool returns a non - zero exit code")), + OPT_STRING('x', "extcmd", &extcmd, N_("<command>"), + N_("specify a custom command for viewing diffs")), + OPT_END() + }; + + git_config(difftool_config, NULL); + symlinks = has_symlinks; + + argc = parse_options(argc, argv, prefix, builtin_difftool_options, + builtin_difftool_usage, PARSE_OPT_KEEP_UNKNOWN | + PARSE_OPT_KEEP_DASHDASH); + + if (tool_help) + return print_tool_help(); + + /* NEEDSWORK: once we no longer spawn anything, remove this */ + setenv(GIT_DIR_ENVIRONMENT, absolute_path(get_git_dir()), 1); + setenv(GIT_WORK_TREE_ENVIRONMENT, absolute_path(get_git_work_tree()), 1); + + if (use_gui_tool && diff_gui_tool && *diff_gui_tool) + setenv("GIT_DIFF_TOOL", diff_gui_tool, 1); + else if (difftool_cmd) { + if (*difftool_cmd) + setenv("GIT_DIFF_TOOL", difftool_cmd, 1); + else + die(_("no <tool> given for --tool=<tool>")); + } + + if (extcmd) { + if (*extcmd) + setenv("GIT_DIFFTOOL_EXTCMD", extcmd, 1); + else + die(_("no <cmd> given for --extcmd=<cmd>")); + } + + setenv("GIT_DIFFTOOL_TRUST_EXIT_CODE", + trust_exit_code ? "true" : "false", 1); + + /* + * In directory diff mode, 'git-difftool--helper' is called once + * to compare the a / b directories. In file diff mode, 'git diff' + * will invoke a separate instance of 'git-difftool--helper' for + * each file that changed. + */ + if (dir_diff) + return run_dir_diff(extcmd, symlinks, prefix, argc, argv); + return run_file_diff(prompt, prefix, argc, argv); +} diff --git a/builtin/fast-export.c b/builtin/fast-export.c index b8182c241d..2dfed87454 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" @@ -211,7 +212,7 @@ static char *anonymize_blob(unsigned long *size) return strbuf_detach(&out, NULL); } -static void export_blob(const unsigned char *sha1) +static void export_blob(const struct object_id *oid) { unsigned long size; enum object_type type; @@ -222,34 +223,34 @@ static void export_blob(const unsigned char *sha1) if (no_data) return; - if (is_null_sha1(sha1)) + if (is_null_oid(oid)) return; - object = lookup_object(sha1); + object = lookup_object(oid->hash); if (object && object->flags & SHOWN) return; if (anonymize) { buf = anonymize_blob(&size); - object = (struct object *)lookup_blob(sha1); + object = (struct object *)lookup_blob(oid); eaten = 0; } else { - buf = read_sha1_file(sha1, &type, &size); + buf = read_sha1_file(oid->hash, &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); + die ("Could not read blob %s", oid_to_hex(oid)); + if (check_sha1_signature(oid->hash, buf, size, typename(type)) < 0) + die("sha1 mismatch in blob %s", oid_to_hex(oid)); + object = parse_object_buffer(oid, type, size, buf, &eaten); } if (!object) - die("Could not read blob %s", sha1_to_hex(sha1)); + die("Could not read blob %s", oid_to_hex(oid)); mark_next_object(object); printf("blob\nmark :%"PRIu32"\ndata %lu\n", last_idnum, size); if (size && fwrite(buf, size, 1, stdout) != 1) - die_errno ("Could not write blob '%s'", sha1_to_hex(sha1)); + die_errno ("Could not write blob '%s'", oid_to_hex(oid)); printf("\n"); show_progress(); @@ -322,19 +323,19 @@ static void print_path(const char *path) } } -static void *generate_fake_sha1(const void *old, size_t *len) +static void *generate_fake_oid(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++); + unsigned char *out = xcalloc(GIT_SHA1_RAWSZ, 1); + put_be32(out + GIT_SHA1_RAWSZ - 4, counter++); return out; } -static const unsigned char *anonymize_sha1(const unsigned char *sha1) +static const unsigned char *anonymize_sha1(const struct object_id *oid) { static struct hashmap sha1s; - size_t len = 20; - return anonymize_mem(&sha1s, generate_fake_sha1, sha1, &len); + size_t len = GIT_SHA1_RAWSZ; + return anonymize_mem(&sha1s, generate_fake_oid, oid, &len); } static void show_filemodify(struct diff_queue_struct *q, @@ -346,7 +347,7 @@ static void show_filemodify(struct diff_queue_struct *q, * Handle files below a directory first, in case they are all deleted * and the directory changes to a file or symlink. */ - qsort(q->queue, q->nr, sizeof(q->queue[0]), depth_first); + QSORT(q->queue, q->nr, depth_first); for (i = 0; i < q->nr; i++) { struct diff_filespec *ospec = q->queue[i]->one; @@ -367,7 +368,7 @@ static void show_filemodify(struct diff_queue_struct *q, print_path(spec->path); putchar('\n'); - if (!hashcmp(ospec->sha1, spec->sha1) && + if (!oidcmp(&ospec->oid, &spec->oid) && ospec->mode == spec->mode) break; /* fallthrough */ @@ -382,10 +383,10 @@ 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(anonymize ? - anonymize_sha1(spec->sha1) : - spec->sha1)); + anonymize_sha1(&spec->oid) : + spec->oid.hash)); else { - struct object *object = lookup_object(spec->sha1); + struct object *object = lookup_object(spec->oid.hash); printf("M %06o :%d ", spec->mode, get_object_mark(object)); } @@ -543,13 +544,13 @@ static void handle_commit(struct commit *commit, struct rev_info *rev) 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"); @@ -561,17 +562,17 @@ static void handle_commit(struct commit *commit, struct rev_info *rev) get_object_mark(&commit->parents->item->object) != 0 && !full_tree) { parse_commit_or_die(commit->parents->item); - diff_tree_sha1(commit->parents->item->tree->object.sha1, - commit->tree->object.sha1, "", &rev->diffopt); + 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)) - export_blob(diff_queued_diff.queue[i]->two->sha1); + export_blob(&diff_queued_diff.queue[i]->two->oid); refname = commit->util; if (anonymize) { @@ -660,13 +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; @@ -705,16 +706,16 @@ static void handle_tag(const char *name, struct tag *tag) case ABORT: die ("Encountered signed tag %s; use " "--signed-tags=<mode> to handle it.", - sha1_to_hex(tag->object.sha1)); + 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", - sha1_to_hex(tag->object.sha1)); + oid_to_hex(&tag->object.oid)); /* fallthru */ case STRIP: message_size = signature + 1 - message; @@ -730,14 +731,15 @@ 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 */ + free(buf); 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; @@ -750,7 +752,7 @@ 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); @@ -764,6 +766,7 @@ static void handle_tag(const char *name, struct tag *tag) (int)(tagger_end - tagger), tagger, tagger == tagger_end ? "" : "\n", (int)message_size, (int)message_size, message ? message : ""); + free(buf); } static struct commit *get_commit(struct rev_cmdline_entry *e, char *full_name) @@ -776,7 +779,7 @@ static struct commit *get_commit(struct rev_cmdline_entry *e, char *full_name) /* handle nested tags */ while (tag && tag->object.type == OBJ_TAG) { - parse_object(tag->object.sha1); + parse_object(&tag->object.oid); string_list_append(&extra_refs, full_name)->util = tag; tag = (struct tag *)tag->tagged; } @@ -796,14 +799,14 @@ static void get_tags_and_duplicates(struct rev_cmdline_info *info) for (i = 0; i < info->nr; i++) { struct rev_cmdline_entry *e = info->rev + i; - unsigned char sha1[20]; + struct object_id oid; struct commit *commit; char *full_name; if (e->flags & UNINTERESTING) continue; - if (dwim_ref(e->name, strlen(e->name), sha1, &full_name) != 1) + if (dwim_ref(e->name, strlen(e->name), oid.hash, &full_name) != 1) continue; if (refspecs) { @@ -827,7 +830,7 @@ static void get_tags_and_duplicates(struct rev_cmdline_info *info) case OBJ_COMMIT: break; case OBJ_BLOB: - export_blob(commit->object.sha1); + export_blob(&commit->object.oid); continue; default: /* OBJ_TAG (nested tags) is already handled */ warning("Tag points to object of unexpected type %s, skipping.", @@ -879,7 +882,7 @@ 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); @@ -887,7 +890,7 @@ 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; } @@ -904,14 +907,12 @@ static void export_marks(char *file) static void import_marks(char *input_file) { char line[512]; - FILE *f = fopen(input_file, "r"); - if (!f) - die_errno("cannot read '%s'", input_file); + FILE *f = xfopen(input_file, "r"); while (fgets(line, sizeof(line), f)) { uint32_t mark; char *line_end, *mark_end; - unsigned char sha1[20]; + struct object_id oid; struct object *object; struct commit *commit; enum object_type type; @@ -923,28 +924,28 @@ static void import_marks(char *input_file) mark = strtoumax(line + 1, &mark_end, 10); if (!mark || mark_end == line + 1 - || *mark_end != ' ' || get_sha1_hex(mark_end + 1, sha1)) + || *mark_end != ' ' || get_oid_hex(mark_end + 1, &oid)) die("corrupt mark line: %s", line); if (last_idnum < mark) last_idnum = mark; - type = sha1_object_info(sha1, NULL); + type = sha1_object_info(oid.hash, NULL); if (type < 0) - die("object not found: %s", sha1_to_hex(sha1)); + die("object not found: %s", oid_to_hex(&oid)); if (type != OBJ_COMMIT) /* only commits */ continue; - commit = lookup_commit(sha1); + commit = lookup_commit(&oid); if (!commit) - die("not a commit? can't happen: %s", sha1_to_hex(sha1)); + die("not a commit? can't happen: %s", oid_to_hex(&oid)); object = &commit->object; if (object->flags & SHOWN) - error("Object %s already has a mark", sha1_to_hex(sha1)); + error("Object %s already has a mark", oid_to_hex(&oid)); mark_object(object, mark); @@ -1020,7 +1021,7 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix) const char **refspecs_str; int i; - refspecs_str = xmalloc(sizeof(*refspecs_str) * refspecs_list.nr); + ALLOC_ARRAY(refspecs_str, refspecs_list.nr); for (i = 0; i < refspecs_list.nr; i++) refspecs_str[i] = refspecs_list.items[i].string; diff --git a/builtin/fetch-pack.c b/builtin/fetch-pack.c index 4a6b340ab6..366b9d13f9 100644 --- a/builtin/fetch-pack.c +++ b/builtin/fetch-pack.c @@ -10,31 +10,34 @@ static const char fetch_pack_usage[] = "[--include-tag] [--upload-pack=<git-upload-pack>] [--depth=<n>] " "[--no-progress] [--diag-url] [-v] [<host>:]<directory> [<refs>...]"; -static void add_sought_entry_mem(struct ref ***sought, int *nr, int *alloc, - const char *name, int namelen) +static void add_sought_entry(struct ref ***sought, int *nr, int *alloc, + const char *name) { - struct ref *ref = xcalloc(1, sizeof(*ref) + namelen + 1); - unsigned char sha1[20]; - - if (namelen > 41 && name[40] == ' ' && !get_sha1_hex(name, sha1)) { - hashcpy(ref->old_sha1, sha1); - name += 41; - namelen -= 41; + 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); + } + } else { + /* <ref>, clear cruft from get_oid_hex */ + oidclr(&oid); } - memcpy(ref->name, name, namelen); - ref->name[namelen] = '\0'; + ref = alloc_ref(name); + oidcpy(&ref->old_oid, &oid); (*nr)++; ALLOC_GROW(*sought, *nr, *alloc); (*sought)[*nr - 1] = ref; } -static void add_sought_entry(struct ref ***sought, int *nr, int *alloc, - const char *string) -{ - add_sought_entry_mem(sought, nr, alloc, string, strlen(string)); -} - int cmd_fetch_pack(int argc, const char **argv, const char *prefix) { int i, ret; @@ -47,7 +50,8 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix) char **pack_lockfile_ptr = NULL; struct child_process *conn; struct fetch_pack_args args; - struct sha1_array shallow = SHA1_ARRAY_INIT; + struct oid_array shallow = OID_ARRAY_INIT; + struct string_list deepen_not = STRING_LIST_INIT_DUP; packet_trace_identity("fetch-pack"); @@ -57,12 +61,12 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix) for (i = 1; i < argc && *argv[i] == '-'; i++) { const char *arg = argv[i]; - if (starts_with(arg, "--upload-pack=")) { - args.uploadpack = arg + 14; + if (skip_prefix(arg, "--upload-pack=", &arg)) { + args.uploadpack = arg; continue; } - if (starts_with(arg, "--exec=")) { - args.uploadpack = arg + 7; + if (skip_prefix(arg, "--exec=", &arg)) { + args.uploadpack = arg; continue; } if (!strcmp("--quiet", arg) || !strcmp("-q", arg)) { @@ -98,8 +102,20 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix) args.verbose = 1; continue; } - if (starts_with(arg, "--depth=")) { - args.depth = strtol(arg + 8, NULL, 0); + if (skip_prefix(arg, "--depth=", &arg)) { + args.depth = strtol(arg, NULL, 0); + continue; + } + if (skip_prefix(arg, "--shallow-since=", &arg)) { + args.deepen_since = xstrdup(arg); + continue; + } + if (skip_prefix(arg, "--shallow-exclude=", &arg)) { + string_list_append(&deepen_not, arg); + continue; + } + if (!strcmp(arg, "--deepen-relative")) { + args.deepen_relative = 1; continue; } if (!strcmp("--no-progress", arg)) { @@ -129,6 +145,8 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix) } usage(fetch_pack_usage); } + if (deepen_not.nr) + args.deepen_not = &deepen_not; if (i < argc) dest = argv[i++]; @@ -156,7 +174,7 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix) else { /* read from stdin one ref per line, until EOF */ struct strbuf line = STRBUF_INIT; - while (strbuf_getline(&line, stdin, '\n') != EOF) + while (strbuf_getline_lf(&line, stdin) != EOF) add_sought_entry(&sought, &nr_sought, &alloc_sought, line.buf); strbuf_release(&line); } @@ -201,16 +219,11 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix) * 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; - } + ret |= report_unmatched_refs(sought, nr_sought); 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; } diff --git a/builtin/fetch.c b/builtin/fetch.c index f9512652cf..100248c5af 100644 --- a/builtin/fetch.c +++ b/builtin/fetch.c @@ -11,9 +11,11 @@ #include "run-command.h" #include "parse-options.h" #include "sigchain.h" +#include "submodule-config.h" #include "submodule.h" #include "connected.h" #include "argv-array.h" +#include "utf8.h" static const char * const builtin_fetch_usage[] = { N_("git fetch [<options>] [<repository> [<refspec>...]]"), @@ -33,11 +35,15 @@ 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 all, append, dry_run, force, keep, multiple, update_head_ok, verbosity, deepen_relative; static int progress = -1, recurse_submodules = RECURSE_SUBMODULES_DEFAULT; -static int tags = TAGS_DEFAULT, unshallow, update_shallow; +static int tags = TAGS_DEFAULT, unshallow, update_shallow, deepen; +static int max_children = -1; +static enum transport_family family; static const char *depth; +static const char *deepen_since; static const char *upload_pack; +static struct string_list deepen_not = STRING_LIST_INIT_NODUP; static struct strbuf default_rla = STRBUF_INIT; static struct transport *gtransport; static struct transport *gsecondary; @@ -67,6 +73,13 @@ static int git_fetch_config(const char *k, const char *v, void *cb) fetch_prune_config = git_config_bool(k, v); return 0; } + + if (!strcmp(k, "submodule.recurse")) { + int r = git_config_bool(k, v) ? + RECURSE_SUBMODULES_ON : RECURSE_SUBMODULES_OFF; + recurse_submodules = r; + } + return git_default_config(k, v, cb); } @@ -98,6 +111,8 @@ static struct option builtin_fetch_options[] = { N_("fetch all tags and associated objects"), TAGS_SET), OPT_SET_INT('n', NULL, &tags, 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"), @@ -111,6 +126,12 @@ static struct option builtin_fetch_options[] = { OPT_BOOL(0, "progress", &progress, N_("force progress reporting")), OPT_STRING(0, "depth", &depth, N_("depth"), N_("deepen history of shallow clone")), + OPT_STRING(0, "shallow-since", &deepen_since, N_("time"), + N_("deepen history of shallow repository based on time")), + OPT_STRING_LIST(0, "shallow-exclude", &deepen_not, N_("revision"), + N_("deepen history of shallow clone, excluding rev")), + OPT_INTEGER(0, "deepen", &deepen_relative, + 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 }, @@ -123,6 +144,10 @@ static struct option builtin_fetch_options[] = { 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() }; @@ -179,13 +204,15 @@ static void add_merge_config(struct ref **head, } } -static int add_existing(const char *refname, const unsigned char *sha1, +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); - item->util = xmalloc(20); - hashcpy(item->util, sha1); + struct object_id *old_oid = xmalloc(sizeof(*old_oid)); + + oidcpy(old_oid, oid); + item->util = old_oid; return 0; } @@ -193,7 +220,7 @@ static int will_fetch(struct ref **head, const unsigned char *sha1) { struct ref *rm = *head; while (rm) { - if (!hashcmp(rm->old_sha1, sha1)) + if (!hashcmp(rm->old_oid.hash, sha1)) return 1; rm = rm->next; } @@ -221,9 +248,10 @@ static void find_non_local_tags(struct transport *transport, * as one to ignore by setting util to NULL. */ if (ends_with(ref->name, "^{}")) { - if (item && !has_sha1_file(ref->old_sha1) && - !will_fetch(head, ref->old_sha1) && - !has_sha1_file(item->util) && + if (item && + !has_object_file_with_flags(&ref->old_oid, HAS_SHA1_QUICK) && + !will_fetch(head, ref->old_oid.hash) && + !has_sha1_file_with_flags(item->util, HAS_SHA1_QUICK) && !will_fetch(head, item->util)) item->util = NULL; item = NULL; @@ -236,7 +264,8 @@ static void find_non_local_tags(struct transport *transport, * to check if it is a lightweight tag that we want to * fetch. */ - if (item && !has_sha1_file(item->util) && + if (item && + !has_sha1_file_with_flags(item->util, HAS_SHA1_QUICK) && !will_fetch(head, item->util)) item->util = NULL; @@ -248,7 +277,7 @@ static void find_non_local_tags(struct transport *transport, continue; item = string_list_insert(&remote_refs, ref->name); - item->util = (void *)ref->old_sha1; + item->util = (void *)&ref->old_oid; } string_list_clear(&existing_refs, 1); @@ -256,7 +285,8 @@ static void find_non_local_tags(struct transport *transport, * 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) && + if (item && + !has_sha1_file_with_flags(item->util, HAS_SHA1_QUICK) && !will_fetch(head, item->util)) item->util = NULL; @@ -270,7 +300,7 @@ static void find_non_local_tags(struct transport *transport, { struct ref *rm = alloc_ref(item->string); rm->peer_ref = alloc_ref(item->string); - hashcpy(rm->old_sha1, item->util); + oidcpy(&rm->old_oid, item->util); **tail = rm; *tail = &rm->next; } @@ -336,9 +366,6 @@ static struct ref *get_ref_map(struct transport *transport, 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 { @@ -401,7 +428,7 @@ static int s_update_ref(const char *action, struct ref *ref, int check_old) { - char msg[1024]; + char *msg; char *rla = getenv("GIT_REFLOG_ACTION"); struct ref_transaction *transaction; struct strbuf err = STRBUF_INIT; @@ -411,13 +438,13 @@ static int s_update_ref(const char *action, return 0; if (!rla) rla = default_rla.buf; - snprintf(msg, sizeof(msg), "%s: %s", rla, action); + msg = xstrfmt("%s: %s", rla, action); transaction = ref_transaction_begin(&err); if (!transaction || ref_transaction_update(transaction, ref->name, - ref->new_sha1, - check_old ? ref->old_sha1 : NULL, + ref->new_oid.hash, + check_old ? ref->old_oid.hash : NULL, 0, msg, &err)) goto fail; @@ -429,68 +456,195 @@ static int s_update_ref(const char *action, ref_transaction_free(transaction); strbuf_release(&err); + free(msg); return 0; fail: ref_transaction_free(transaction); error("%s", err.buf); strbuf_release(&err); + free(msg); return df_conflict ? STORE_REF_ERROR_DF_CONFLICT : STORE_REF_ERROR_OTHER; } -#define REFCOL_WIDTH 10 +static int refcol_width = 10; +static int compact_format; + +static void adjust_refcol_width(const struct ref *ref) +{ + int max, rlen, llen, len; + + /* uptodate lines are only shown on high verbosity level */ + if (!verbosity && !oidcmp(&ref->peer_ref->old_oid, &ref->old_oid)) + return; + + max = term_columns(); + rlen = utf8_strwidth(prettify_refname(ref->name)); + + llen = utf8_strwidth(prettify_refname(ref->peer_ref->name)); + + /* + * rough estimation to see if the output line is too long and + * should not be counted (we can't do precise calculation + * anyway because we don't know if the error explanation part + * will be printed in update_local_ref) + */ + if (compact_format) { + llen = 0; + max = max * 2 / 3; + } + len = 21 /* flag and summary */ + rlen + 4 /* -> */ + llen; + if (len >= max) + return; + + /* + * Not precise calculation for compact mode because '*' can + * appear on the left hand side of '->' and shrink the column + * back. + */ + if (refcol_width < rlen) + refcol_width = rlen; +} + +static void prepare_format_display(struct ref *ref_map) +{ + struct ref *rm; + const char *format = "full"; + + git_config_get_string_const("fetch.output", &format); + if (!strcasecmp(format, "full")) + compact_format = 0; + else if (!strcasecmp(format, "compact")) + compact_format = 1; + else + die(_("configuration fetch.output contains invalid value %s"), + format); + + for (rm = ref_map; rm; rm = rm->next) { + if (rm->status == REF_STATUS_REJECT_SHALLOW || + !rm->peer_ref || + !strcmp(rm->name, "HEAD")) + continue; + + adjust_refcol_width(rm); + } +} + +static void print_remote_to_local(struct strbuf *display, + const char *remote, const char *local) +{ + strbuf_addf(display, "%-*s -> %s", refcol_width, remote, local); +} + +static int find_and_replace(struct strbuf *haystack, + const char *needle, + const char *placeholder) +{ + const char *p = strstr(haystack->buf, needle); + int plen, nlen; + + if (!p) + return 0; + + if (p > haystack->buf && p[-1] != '/') + return 0; + + plen = strlen(p); + nlen = strlen(needle); + if (plen > nlen && p[nlen] != '/') + return 0; + + strbuf_splice(haystack, p - haystack->buf, nlen, + placeholder, strlen(placeholder)); + return 1; +} + +static void print_compact(struct strbuf *display, + const char *remote, const char *local) +{ + struct strbuf r = STRBUF_INIT; + struct strbuf l = STRBUF_INIT; + + if (!strcmp(remote, local)) { + strbuf_addf(display, "%-*s -> *", refcol_width, remote); + return; + } + + strbuf_addstr(&r, remote); + strbuf_addstr(&l, local); + + if (!find_and_replace(&r, local, "*")) + find_and_replace(&l, remote, "*"); + print_remote_to_local(display, r.buf, l.buf); + + strbuf_release(&r); + strbuf_release(&l); +} + +static void format_display(struct strbuf *display, char code, + const char *summary, const char *error, + const char *remote, const char *local, + int summary_width) +{ + int width = (summary_width + strlen(summary) - gettext_width(summary)); + + strbuf_addf(display, "%c %-*s ", code, width, summary); + if (!compact_format) + print_remote_to_local(display, remote, local); + else + print_compact(display, remote, local); + if (error) + strbuf_addf(display, " (%s)", error); +} static int update_local_ref(struct ref *ref, const char *remote, const struct ref *remote_ref, - struct strbuf *display) + struct strbuf *display, + int summary_width) { struct commit *current = NULL, *updated; enum object_type type; 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(_("[up to date]")), - REFCOL_WIDTH, remote, pretty_ref); + format_display(display, '=', _("[up to date]"), NULL, + remote, pretty_ref, summary_width); 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(_("[rejected]")), - REFCOL_WIDTH, remote, pretty_ref); + format_display(display, '!', _("[rejected]"), + _("can't fetch in current branch"), + remote, pretty_ref, summary_width); return 1; } - if (!is_null_sha1(ref->old_sha1) && + 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(_("[tag update]")), - REFCOL_WIDTH, remote, pretty_ref, - r ? _(" (unable to update local ref)") : ""); + format_display(display, r ? '!' : 't', _("[tag update]"), + r ? _("unable to update local ref") : NULL, + remote, pretty_ref, summary_width); 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, 1); + updated = lookup_commit_reference_gently(&ref->new_oid, 1); if (!current || !updated) { const char *msg; const char *what; @@ -514,53 +668,47 @@ static int update_local_ref(struct ref *ref, 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); r = s_update_ref(msg, ref, 0); - strbuf_addf(display, "%c %-*s %-*s -> %s%s", - r ? '!' : '*', - TRANSPORT_SUMMARY(what), - REFCOL_WIDTH, remote, pretty_ref, - r ? _(" (unable to update local ref)") : ""); + format_display(display, r ? '!' : '*', what, + r ? _("unable to update local ref") : NULL, + remote, pretty_ref, summary_width); return r; } if (in_merge_bases(current, updated)) { - char quickref[83]; + 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); r = s_update_ref("fast-forward", ref, 1); - strbuf_addf(display, "%c %-*s %-*s -> %s%s", - r ? '!' : ' ', - TRANSPORT_SUMMARY_WIDTH, quickref, - REFCOL_WIDTH, remote, pretty_ref, - r ? _(" (unable to update local ref)") : ""); + format_display(display, r ? '!' : ' ', quickref.buf, + r ? _("unable to update local ref") : NULL, + remote, pretty_ref, summary_width); + 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); r = s_update_ref("forced-update", ref, 1); - strbuf_addf(display, "%c %-*s %-*s -> %s (%s)", - r ? '!' : '+', - TRANSPORT_SUMMARY_WIDTH, quickref, - REFCOL_WIDTH, remote, pretty_ref, - r ? _("unable to update local ref") : _("forced update")); + format_display(display, r ? '!' : '+', quickref.buf, + r ? _("unable to update local ref") : _("forced update"), + remote, pretty_ref, summary_width); + strbuf_release(&quickref); return r; } else { - strbuf_addf(display, "! %-*s %-*s -> %s %s", - TRANSPORT_SUMMARY(_("[rejected]")), - REFCOL_WIDTH, remote, pretty_ref, - _("(non-fast-forward)")); + format_display(display, '!', _("[rejected]"), _("non-fast-forward"), + remote, pretty_ref, summary_width); return 1; } } @@ -575,7 +723,7 @@ static int iterate_ref_map(void *cb_data, unsigned char sha1[20]) if (!ref) return -1; /* end of the list */ *rm = ref->next; - hashcpy(sha1, ref->old_sha1); + hashcpy(sha1, ref->old_oid.hash); return 0; } @@ -588,12 +736,14 @@ static int store_updated_refs(const char *raw_url, const char *remote_name, 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; + int summary_width = transport_summary_width(ref_map); 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); @@ -601,11 +751,13 @@ static int store_updated_refs(const char *raw_url, const char *remote_name, url = xstrdup("foreign"); rm = ref_map; - if (check_everything_connected(iterate_ref_map, 0, &rm)) { + if (check_connected(iterate_ref_map, &rm, NULL)) { rc = error(_("%s did not send all necessary objects\n"), url); goto abort; } + prepare_format_display(ref_map); + /* * 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 @@ -625,7 +777,8 @@ static int store_updated_refs(const char *raw_url, const char *remote_name, continue; } - commit = lookup_commit_reference_gently(rm->old_sha1, 1); + commit = lookup_commit_reference_gently(&rm->old_oid, + 1); if (!commit) rm->fetch_head_status = FETCH_HEAD_NOT_FOR_MERGE; @@ -633,10 +786,9 @@ static int store_updated_refs(const char *raw_url, const char *remote_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 = 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; } @@ -681,7 +833,7 @@ static int store_updated_refs(const char *raw_url, const char *remote_name, /* fall-through */ case FETCH_HEAD_MERGE: fprintf(fp, "%s\t%s\t%s", - sha1_to_hex(rm->old_sha1), + oid_to_hex(&rm->old_oid), merge_status_marker, note.buf); for (i = 0; i < url_len; ++i) @@ -698,14 +850,14 @@ static int store_updated_refs(const char *raw_url, const char *remote_name, strbuf_reset(¬e); if (ref) { - rc |= update_local_ref(ref, what, rm, ¬e); + rc |= update_local_ref(ref, what, rm, ¬e, + summary_width); free(ref); } else - strbuf_addf(¬e, "* %-*s %-*s -> FETCH_HEAD", - TRANSPORT_SUMMARY_WIDTH, - *kind ? kind : "branch", - REFCOL_WIDTH, - *what ? what : "HEAD"); + format_display(¬e, '*', + *kind ? kind : "branch", NULL, + *what ? what : "HEAD", + "FETCH_HEAD", summary_width); if (note.len) { if (verbosity >= 0 && !shown_url) { fprintf(stderr, _("From %.*s\n"), @@ -738,6 +890,7 @@ static int store_updated_refs(const char *raw_url, const char *remote_name, static int quickfetch(struct ref *ref_map) { struct ref *rm = ref_map; + struct check_connected_options opt = CHECK_CONNECTED_INIT; /* * If we are deepening a shallow clone we already have these @@ -746,9 +899,10 @@ static int quickfetch(struct ref *ref_map) * really need to perform. Claiming failure now will ensure * we perform the network exchange to deepen our history. */ - if (depth) + if (deepen) return -1; - return check_everything_connected(iterate_ref_map, 1, &rm); + opt.quiet = 1; + return check_connected(iterate_ref_map, &rm, &opt); } static int fetch_refs(struct transport *transport, struct ref *ref_map) @@ -770,6 +924,7 @@ static int prune_refs(struct refspec *refs, int ref_count, struct ref *ref_map, int url_len, i, result = 0; struct ref *ref, *stale_refs = get_stale_heads(refs, ref_count, ref_map); char *url; + int summary_width = transport_summary_width(stale_refs); const char *dangling_msg = dry_run ? _(" (%s will become dangling)") : _(" (%s has become dangling)"); @@ -787,20 +942,32 @@ static int prune_refs(struct refspec *refs, int ref_count, struct ref *ref_map, if (4 < i && !strncmp(".git", url + i - 3, 4)) url_len = i - 3; - for (ref = stale_refs; ref; ref = ref->next) { - if (!dry_run) - result |= delete_ref(ref->name, NULL, 0); - if (verbosity >= 0 && !shown_url) { - fprintf(stderr, _("From %.*s\n"), url_len, url); - shown_url = 1; - } - if (verbosity >= 0) { - fprintf(stderr, " x %-*s %-*s -> %s\n", - TRANSPORT_SUMMARY(_("[deleted]")), - REFCOL_WIDTH, _("(none)"), prettify_refname(ref->name)); + if (!dry_run) { + struct string_list refnames = STRING_LIST_INIT_NODUP; + + for (ref = stale_refs; ref; ref = ref->next) + string_list_append(&refnames, ref->name); + + result = delete_refs("fetch: prune", &refnames, 0); + string_list_clear(&refnames, 0); + } + + if (verbosity >= 0) { + for (ref = stale_refs; ref; ref = ref->next) { + struct strbuf sb = STRBUF_INIT; + if (!shown_url) { + fprintf(stderr, _("From %.*s\n"), url_len, url); + shown_url = 1; + } + format_display(&sb, '-', _("[deleted]"), NULL, + _("(none)"), prettify_refname(ref->name), + summary_width); + fprintf(stderr, " %s\n",sb.buf); + strbuf_release(&sb); warn_dangling_symref(stderr, dangling_msg, ref->name); } } + free(url); free_refs(stale_refs); return result; @@ -822,11 +989,11 @@ 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; } @@ -842,17 +1009,25 @@ static void set_option(struct transport *transport, const char *name, const char name, transport->url); } -static struct transport *prepare_transport(struct remote *remote) +static struct transport *prepare_transport(struct remote *remote, int deepen) { 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 (deepen && deepen_since) + set_option(transport, TRANS_OPT_DEEPEN_SINCE, deepen_since); + if (deepen && deepen_not.nr) + set_option(transport, TRANS_OPT_DEEPEN_NOT, + (const char *)&deepen_not); + if (deepen_relative) + set_option(transport, TRANS_OPT_DEEPEN_RELATIVE, "yes"); if (update_shallow) set_option(transport, TRANS_OPT_UPDATE_SHALLOW, "yes"); return transport; @@ -860,13 +1035,25 @@ static struct transport *prepare_transport(struct remote *remote) static void backfill_tags(struct transport *transport, struct ref *ref_map) { - if (transport->cannot_reuse) { - gsecondary = prepare_transport(transport->remote); + int cannot_reuse; + + /* + * Once we have set TRANS_OPT_DEEPEN_SINCE, we can't unset it + * when remote helper is used (setting it to an empty string + * is not unsetting). We could extend the remote helper + * protocol for that, but for now, just force a new connection + * without deepen-since. Similar story for deepen-not. + */ + cannot_reuse = transport->cannot_reuse || + deepen_since || deepen_not.nr; + if (cannot_reuse) { + gsecondary = prepare_transport(transport->remote, 0); transport = gsecondary; } transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, NULL); transport_set_option(transport, TRANS_OPT_DEPTH, "0"); + transport_set_option(transport, TRANS_OPT_DEEPEN_RELATIVE, NULL); fetch_refs(transport, ref_map); if (gsecondary) { @@ -912,9 +1099,10 @@ static int do_fetch(struct transport *transport, struct string_list_item *peer_item = string_list_lookup(&existing_refs, rm->peer_ref->name); - if (peer_item) - hashcpy(rm->peer_ref->old_sha1, - peer_item->util); + if (peer_item) { + struct object_id *old_oid = peer_item->util; + oidcpy(&rm->peer_ref->old_oid, old_oid); + } } } @@ -975,17 +1163,15 @@ static int get_remote_group(const char *key, const char *value, void *priv) { struct remote_group_data *g = priv; - if (starts_with(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'); } } @@ -1000,10 +1186,9 @@ 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, 0)) return 0; - remote = remote_get(name); string_list_append(list, remote->name); } return 1; @@ -1079,7 +1264,7 @@ 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.")); - gtransport = prepare_transport(remote); + gtransport = prepare_transport(remote, 1); if (prune < 0) { /* no command line request */ @@ -1094,7 +1279,7 @@ static int fetch_one(struct remote *remote, int argc, const char **argv) if (argc > 0) { int j = 0; int i; - refs = xcalloc(argc + 1, sizeof(const char *)); + refs = xcalloc(st_add(argc, 1), sizeof(const char *)); for (i = 0; i < argc; i++) { if (!strcmp(argv[i], "tag")) { i++; @@ -1122,7 +1307,7 @@ static int fetch_one(struct remote *remote, int argc, const char **argv) 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; @@ -1139,21 +1324,27 @@ int cmd_fetch(int argc, const char **argv, const char *prefix) argc = parse_options(argc, argv, prefix, builtin_fetch_options, builtin_fetch_usage, 0); + if (deepen_relative) { + if (deepen_relative < 0) + die(_("Negative depth in --deepen is not supported")); + if (depth) + die(_("--deepen and --depth are mutually exclusive")); + depth = xstrfmt("%d", deepen_relative); + } 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 { - static char inf_depth[12]; - sprintf(inf_depth, "%d", INFINITE_DEPTH); - depth = inf_depth; - } + 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 (depth || deepen_since || deepen_not.nr) + deepen = 1; if (recurse_submodules != RECURSE_SUBMODULES_OFF) { if (recurse_submodules_default) { @@ -1203,14 +1394,15 @@ int cmd_fetch(int argc, const char **argv, const char *prefix) 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"); diff --git a/builtin/fmt-merge-msg.c b/builtin/fmt-merge-msg.c index 05f4c26311..70137b0b7e 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" @@ -40,7 +41,7 @@ struct src_data { }; struct origin_data { - unsigned char sha1[20]; + struct object_id oid; unsigned is_local_branch:1; }; @@ -58,8 +59,8 @@ static struct string_list origins = STRING_LIST_INIT_DUP; struct merge_parents { int alloc, nr; struct merge_parent { - unsigned char given[20]; - unsigned char commit[20]; + struct object_id given; + struct object_id commit; unsigned char used; } *item; }; @@ -69,14 +70,14 @@ struct merge_parents { * hundreds of heads at a time anyway. */ static struct merge_parent *find_merge_parent(struct merge_parents *table, - unsigned char *given, - unsigned char *commit) + struct object_id *given, + struct object_id *commit) { int i; for (i = 0; i < table->nr; i++) { - if (given && hashcmp(table->item[i].given, given)) + if (given && oidcmp(&table->item[i].given, given)) continue; - if (commit && hashcmp(table->item[i].commit, commit)) + if (commit && oidcmp(&table->item[i].commit, commit)) continue; return &table->item[i]; } @@ -84,14 +85,14 @@ static struct merge_parent *find_merge_parent(struct merge_parents *table, } static void add_merge_parent(struct merge_parents *table, - unsigned char *given, - unsigned char *commit) + struct object_id *given, + struct object_id *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); + oidcpy(&table->item[table->nr].given, given); + oidcpy(&table->item[table->nr].commit, commit); table->item[table->nr].used = 0; table->nr++; } @@ -105,30 +106,30 @@ static int handle_line(char *line, struct merge_parents *merge_parents) struct src_data *src_data; struct string_list_item *item; int pulling_head = 0; - unsigned char sha1[20]; + struct object_id oid; - if (len < 43 || line[40] != '\t') + if (len < GIT_SHA1_HEXSZ + 3 || line[GIT_SHA1_HEXSZ] != '\t') return 1; - if (starts_with(line + 41, "not-for-merge")) + if (starts_with(line + GIT_SHA1_HEXSZ + 1, "not-for-merge")) return 0; - if (line[41] != '\t') + if (line[GIT_SHA1_HEXSZ + 1] != '\t') return 2; - i = get_sha1_hex(line, sha1); + i = get_oid_hex(line, &oid); if (i) return 3; - if (!find_merge_parent(merge_parents, sha1, NULL)) + if (!find_merge_parent(merge_parents, &oid, NULL)) return 0; /* subsumed by other parents */ origin_data = xcalloc(1, sizeof(struct origin_data)); - hashcpy(origin_data->sha1, sha1); + oidcpy(&origin_data->oid, &oid); if (line[len - 1] == '\n') line[len - 1] = 0; - line += 42; + line += GIT_SHA1_HEXSZ + 2; /* * At this point, line points at the beginning of comment e.g. @@ -271,7 +272,7 @@ static int cmp_string_list_util_as_integral(const void *a_, const void *b_) static void add_people_count(struct strbuf *out, struct string_list *people) { if (people->nr == 1) - strbuf_addf(out, "%s", people->items[0].string); + strbuf_addstr(out, people->items[0].string); else if (people->nr == 2) strbuf_addf(out, "%s (%d) and %s (%d)", people->items[0].string, @@ -313,14 +314,10 @@ 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); + QSORT(authors->items, authors->nr, + cmp_string_list_util_as_integral); + QSORT(committers->items, committers->nr, + cmp_string_list_util_as_integral); credit_people(out, authors, 'a'); credit_people(out, committers, 'c'); @@ -341,10 +338,10 @@ static void shortlog(const char *name, 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; + const struct object_id *oid = &origin_data->oid; int limit = opts->shortlog_len; - branch = deref_tag(parse_object(sha1), sha1_to_hex(sha1), 40); + branch = deref_tag(parse_object(oid), oid_to_hex(oid), GIT_SHA1_HEXSZ); if (!branch || branch->type != OBJ_COMMIT) return; @@ -377,7 +374,7 @@ 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)); } @@ -394,7 +391,7 @@ static void shortlog(const char *name, for (i = 0; i < subjects.nr; i++) if (i >= limit) - strbuf_addf(out, " ...\n"); + strbuf_addstr(out, " ...\n"); else strbuf_addf(out, " %s\n", subjects.items[i].string); @@ -534,9 +531,9 @@ static void fmt_merge_msg_sigs(struct strbuf *out) } static void find_merge_parents(struct merge_parents *result, - struct strbuf *in, unsigned char *head) + struct strbuf *in, struct object_id *head) { - struct commit_list *parents, *next; + struct commit_list *parents; struct commit *head_commit; int pos = 0, i, j; @@ -545,29 +542,29 @@ static void find_merge_parents(struct merge_parents *result, int len; char *p = in->buf + pos; char *newline = strchr(p, '\n'); - unsigned char sha1[20]; + struct object_id oid; 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') + if (len < GIT_SHA1_HEXSZ + 3 || + get_oid_hex(p, &oid) || + p[GIT_SHA1_HEXSZ] != '\t' || + p[GIT_SHA1_HEXSZ + 1] != '\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); + obj = parse_object(&oid); parent = (struct commit *)peel_to_type(NULL, 0, obj, OBJ_COMMIT); if (!parent) continue; commit_list_insert(parent, &parents); - add_merge_parent(result, obj->sha1, parent->object.sha1); + add_merge_parent(result, &obj->oid, &parent->object.oid); } head_commit = lookup_commit(head); if (head_commit) @@ -575,13 +572,10 @@ static void find_merge_parents(struct merge_parents *result, 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, - parents->item->object.sha1)) + if (!oidcmp(&result->item[i].commit, &cmit->object.oid)) result->item[i].used = 1; - next = parents->next; - free(parents); - parents = next; } for (i = j = 0; i < result->nr; i++) { @@ -598,7 +592,7 @@ int fmt_merge_msg(struct strbuf *in, struct strbuf *out, struct fmt_merge_msg_opts *opts) { int i = 0, pos = 0; - unsigned char head_sha1[20]; + struct object_id head_oid; const char *current_branch; void *current_branch_to_free; struct merge_parents merge_parents; @@ -607,13 +601,13 @@ int fmt_merge_msg(struct strbuf *in, struct strbuf *out, /* get current branch */ current_branch = current_branch_to_free = - resolve_refdup("HEAD", RESOLVE_REF_READING, head_sha1, NULL); + resolve_refdup("HEAD", RESOLVE_REF_READING, head_oid.hash, NULL); if (!current_branch) die("No current branch"); if (starts_with(current_branch, "refs/heads/")) current_branch += 11; - find_merge_parents(&merge_parents, in, head_sha1); + find_merge_parents(&merge_parents, in, &head_oid); /* get a line */ while (pos < in->len) { @@ -639,7 +633,7 @@ int fmt_merge_msg(struct strbuf *in, struct strbuf *out, struct commit *head; struct rev_info rev; - head = lookup_commit_or_die(head_sha1, "HEAD"); + head = lookup_commit_or_die(&head_oid, "HEAD"); init_revisions(&rev, NULL); rev.commit_format = CMIT_FMT_ONELINE; rev.ignore_merges = 1; diff --git a/builtin/for-each-ref.c b/builtin/for-each-ref.c index 13d217240a..eca365bf89 100644 --- a/builtin/for-each-ref.c +++ b/builtin/for-each-ref.c @@ -2,1081 +2,25 @@ #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" -#include "color.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" }, - { "HEAD" }, - { "color" }, -}; - -/* - * 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, need_tagged, need_symref; -static int need_color_reset_at_eol; - -/* - * 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++; - REALLOC_ARRAY(used_atom, used_atom_cnt); - REALLOC_ARRAY(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; - - need_color_reset_at_eol = 0; - for (cp = format; *cp && (sp = find_next(cp)); ) { - const char *color, *ep = strchr(sp, ')'); - int at; - - if (!ep) - return error("malformed format string %s", sp); - /* sp points at "%(" and ep points at the closing ")" */ - at = parse_atom(sp + 2, ep); - cp = ep + 1; - - if (skip_prefix(used_atom[at], "color:", &color)) - need_color_reset_at_eol = !!strcmp(color, "reset"); - } - 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; -} - -static int grab_objectname(const char *name, const unsigned char *sha1, - struct atom_value *v) -{ - if (!strcmp(name, "objectname")) { - char *s = xmalloc(41); - strcpy(s, sha1_to_hex(sha1)); - v->s = s; - return 1; - } - if (!strcmp(name, "objectname:short")) { - v->s = xstrdup(find_unique_abbrev(sha1, DEFAULT_ABBREV)); - return 1; - } - return 0; -} - -/* 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 (deref) - grab_objectname(name, obj->sha1, v); - } -} - -/* 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; - } - } -} - -/* 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 = commit_list_count(commit->parents); - sprintf(s, "%lu", v->ul); - v->s = s; - } - else if (!strcmp(name, "parent")) { - int num = commit_list_count(commit->parents); - 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") && - !starts_with(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 (starts_with(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 (starts_with(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(used_atom_cnt, sizeof(struct atom_value)); - - if (need_symref && (ref->flag & REF_ISSYMREF) && !ref->symref) { - unsigned char unused1[20]; - ref->symref = resolve_refdup(ref->refname, RESOLVE_REF_READING, - unused1, 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; - struct branch *branch = NULL; - - if (*name == '*') { - deref = 1; - name++; - } - - if (starts_with(name, "refname")) - refname = ref->refname; - else if (starts_with(name, "symref")) - refname = ref->symref ? ref->symref : ""; - else if (starts_with(name, "upstream")) { - /* only local branches may have an upstream */ - if (!starts_with(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 (starts_with(name, "color:")) { - char color[COLOR_MAXLEN] = ""; - - if (color_parse(name + 6, color) < 0) - die(_("unable to parse format")); - v->s = xstrdup(color); - continue; - } 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 if (!deref && grab_objectname(name, ref->objectname, v)) { - continue; - } else if (!strcmp(name, "HEAD")) { - const char *head; - unsigned char sha1[20]; - - head = resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, - sha1, NULL); - if (!strcmp(ref->refname, head)) - v->s = "*"; - else - v->s = " "; - continue; - } else - continue; - - formatp = strchr(name, ':'); - if (formatp) { - int num_ours, num_theirs; - - formatp++; - if (!strcmp(formatp, "short")) - refname = shorten_unambiguous_ref(refname, - warn_ambiguous_refs); - else if (!strcmp(formatp, "track") && - starts_with(name, "upstream")) { - char buf[40]; - - if (stat_tracking_info(branch, &num_ours, - &num_theirs) != 1) - continue; - - if (!num_ours && !num_theirs) - v->s = ""; - else if (!num_ours) { - sprintf(buf, "[behind %d]", num_theirs); - v->s = xstrdup(buf); - } else if (!num_theirs) { - sprintf(buf, "[ahead %d]", num_ours); - v->s = xstrdup(buf); - } else { - sprintf(buf, "[ahead %d, behind %d]", - num_ours, num_theirs); - v->s = xstrdup(buf); - } - continue; - } else if (!strcmp(formatp, "trackshort") && - starts_with(name, "upstream")) { - assert(branch); - - if (stat_tracking_info(branch, &num_ours, - &num_theirs) != 1) - continue; - - if (!num_ours && !num_theirs) - v->s = "="; - else if (!num_ours) - v->s = "<"; - else if (!num_theirs) - v->s = ">"; - else - v->s = "<>"; - continue; - } 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 (flag & REF_BAD_NAME) { - warning("ignoring ref with broken name %s", refname); - return 0; - } - - if (flag & REF_ISBROKEN) { - warning("ignoring broken ref %s", refname); - return 0; - } - - 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 (!wildmatch(p, refname, WM_PATHNAME, NULL)) - 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; - REALLOC_ARRAY(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 atom_value *v, int quote_style) -{ - struct strbuf sb = STRBUF_INIT; - switch (quote_style) { - case QUOTE_NONE: - fputs(v->s, stdout); - break; - case QUOTE_SHELL: - sq_quote_buf(&sb, v->s); - break; - case QUOTE_PERL: - perl_quote_buf(&sb, v->s); - break; - case QUOTE_PYTHON: - python_quote_buf(&sb, v->s); - break; - case QUOTE_TCL: - tcl_quote_buf(&sb, v->s); - break; - } - if (quote_style != QUOTE_NONE) { - fputs(sb.buf, stdout); - strbuf_release(&sb); - } -} - -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) { - struct atom_value *atomv; - - ep = strchr(sp, ')'); - if (cp < sp) - emit(cp, sp); - get_value(info, parse_atom(sp + 2, ep), &atomv); - print_value(atomv, quote_style); - } - if (*cp) { - sp = cp + strlen(cp); - emit(cp, sp); - } - if (need_color_reset_at_eol) { - struct atom_value resetv; - char color[COLOR_MAXLEN] = ""; - - if (color_parse("reset", color) < 0) - die("BUG: couldn't parse 'reset' as a color"); - resetv.s = color; - print_value(&resetv, quote_style); - } - 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; - - s = xcalloc(1, sizeof(*s)); - s->next = *sort_tail; - *sort_tail = 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[] = { N_("git for-each-ref [<options>] [<pattern>]"), + N_("git for-each-ref [--points-at <object>]"), + N_("git for-each-ref [(--merged | --no-merged) [<commit>]]"), + N_("git for-each-ref [--contains [<commit>]] [--no-contains [<commit>]]"), 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; - int maxcount = 0, quote_style = 0; - struct refinfo **refs; - struct grab_ref_cbdata cbdata; + struct ref_sorting *sorting = NULL, **sorting_tail = &sorting; + int maxcount = 0, quote_style = 0, icase = 0; + struct ref_array array; + struct ref_filter filter; struct option opts[] = { OPT_BIT('s', "shell", "e_style, @@ -1091,11 +35,22 @@ int cmd_for_each_ref(int argc, const char **argv, const char *prefix) OPT_GROUP(""), 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", sort_tail, N_("key"), - N_("field name to sort on"), &opt_parse_sort), + 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_NO_CONTAINS(&filter.no_commit, N_("print only refs which don't contain the commit")), + OPT_BOOL(0, "ignore-case", &icase, N_("sorting and filtering are case insensitive")), 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); @@ -1105,26 +60,26 @@ 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(); + if (!sorting) + sorting = ref_default_sorting(); + sorting->ignore_case = icase; + filter.ignore_case = icase; /* 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 6b6f31997c..3a2c27f241 100644 --- a/builtin/fsck.c +++ b/builtin/fsck.c @@ -13,6 +13,7 @@ #include "dir.h" #include "progress.h" #include "streaming.h" +#include "decorate.h" #define REACHABLE 0x0001 #define SEEN 0x0002 @@ -23,60 +24,102 @@ 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; +static int name_objects; #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 const char *describe_object(struct object *obj) +{ + static struct strbuf buf = STRBUF_INIT; + char *name = name_objects ? + lookup_decoration(fsck_walk_options.object_names, obj) : NULL; + + strbuf_reset(&buf); + strbuf_addstr(&buf, oid_to_hex(&obj->oid)); + if (name) + strbuf_addf(&buf, " (%s)", name); + + return buf.buf; +} + +static const char *printable_type(struct object *obj) +{ + const char *ret; + + if (obj->type == OBJ_NONE) { + enum object_type type = sha1_object_info(obj->oid.hash, NULL); + if (type > 0) + object_as_type(obj, type, 0); + } + + ret = typename(obj->type); + if (!ret) + ret = "unknown"; + + return ret; +} + +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; + } + + if (skip_prefix(var, "fsck.", &var)) { + fsck_set_msg_type(&fsck_obj_options, var, value); + return 0; + } -static void objreport(struct object *obj, const char *severity, - const char *err, va_list params) + 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, printable_type(obj), describe_object(obj), 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 fsck_options *o, + 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; @@ -88,7 +131,7 @@ 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)); + printable_type(parent), describe_object(parent)); printf("broken link from %7s %s\n", (type == OBJ_ANY ? "unknown" : typename(type)), "unknown"); errors_found |= ERROR_REACHABLE; @@ -103,11 +146,11 @@ static int mark_object(struct object *obj, int type, void *data) return 0; obj->flags |= REACHABLE; if (!(obj->flags & HAS_OBJ)) { - if (parent && !has_sha1_file(obj->sha1)) { + if (parent && !has_object_file(&obj->oid)) { printf("broken link from %7s %s\n", - typename(parent->type), sha1_to_hex(parent->sha1)); + printable_type(parent), describe_object(parent)); printf(" to %7s %s\n", - typename(obj->type), sha1_to_hex(obj->sha1)); + printable_type(obj), describe_object(obj)); errors_found |= ERROR_REACHABLE; } return 1; @@ -119,7 +162,7 @@ static int mark_object(struct object *obj, int type, void *data) 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) @@ -132,7 +175,7 @@ static int traverse_one_object(struct object *obj) if (parse_tree(tree) < 0) return 1; /* error already displayed */ } - result = fsck_walk(obj, mark_object, obj); + result = fsck_walk(obj, obj, &fsck_walk_options); if (tree) free_tree_buffer(tree); return result; @@ -158,7 +201,7 @@ 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; @@ -177,9 +220,10 @@ static void check_reachable_object(struct object *obj) * do a full fsck */ if (!(obj->flags & HAS_OBJ)) { - if (has_sha1_pack(obj->sha1)) + 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)); + printf("missing %s %s\n", printable_type(obj), + describe_object(obj)); errors_found |= ERROR_REACHABLE; return; } @@ -196,7 +240,7 @@ static void check_unreachable_object(struct object *obj) * to complain about it being unreachable (since it does * not exist). */ - if (!obj->parsed) + if (!(obj->flags & HAS_OBJ)) return; /* @@ -204,7 +248,8 @@ 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", printable_type(obj), + describe_object(obj)); return; } @@ -222,28 +267,29 @@ static void check_unreachable_object(struct object *obj) */ if (!obj->used) { if (show_dangling) - printf("dangling %s %s\n", typename(obj->type), - sha1_to_hex(obj->sha1)); + printf("dangling %s %s\n", printable_type(obj), + describe_object(obj)); 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)); + describe_object(obj)); 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); + f = xfopen(filename, "w"); if (obj->type == OBJ_BLOB) { - if (stream_blob_to_fd(fileno(f), obj->sha1, NULL, 1)) + if (stream_blob_to_fd(fileno(f), &obj->oid, NULL, 1)) die_errno("Could not write '%s'", filename); } else - fprintf(f, "%s\n", sha1_to_hex(obj->sha1)); + fprintf(f, "%s\n", describe_object(obj)); if (fclose(f)) die_errno("Could not finish '%s'", filename); + free(filename); } return; } @@ -258,7 +304,7 @@ 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", describe_object(obj)); if (obj->flags & REACHABLE) check_reachable_object(obj); @@ -294,11 +340,11 @@ static int fsck_obj(struct object *obj) if (verbose) fprintf(stderr, "Checking %s %s\n", - typename(obj->type), sha1_to_hex(obj->sha1)); + printable_type(obj), describe_object(obj)); - if (fsck_walk(obj, mark_used, NULL)) + if (fsck_walk(obj, NULL, &fsck_obj_options)) objerror(obj, "broken links"); - if (fsck_object(obj, NULL, 0, check_strict, fsck_error_func)) + if (fsck_object(obj, NULL, 0, &fsck_obj_options)) return -1; if (obj->type == OBJ_TREE) { @@ -313,196 +359,106 @@ static int fsck_obj(struct object *obj) free_commit_buffer(commit); if (!commit->parents && show_root) - printf("root %s\n", sha1_to_hex(commit->object.sha1)); + printf("root %s\n", describe_object(&commit->object)); } 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", printable_type(tag->tagged), + describe_object(tag->tagged)); + printf(" (%s) in %s\n", tag->tag, + describe_object(&tag->object)); } } return 0; } -static int fsck_sha1(const unsigned char *sha1) -{ - struct object *obj = parse_object(sha1); - if (!obj) { - errors_found |= ERROR_OBJECT; - return error("%s: object corrupt or missing", - sha1_to_hex(sha1)); - } - obj->flags |= HAS_OBJ; - return fsck_obj(obj); -} - -static int fsck_obj_buffer(const unsigned char *sha1, enum object_type type, +static int fsck_obj_buffer(const struct object_id *oid, enum object_type type, unsigned long size, void *buffer, int *eaten) { + /* + * Note, buffer may be NULL if type is OBJ_BLOB. See + * verify_packfile(), data_valid variable for details. + */ struct object *obj; - obj = parse_object_buffer(sha1, type, size, buffer, eaten); + obj = parse_object_buffer(oid, type, size, buffer, eaten); if (!obj) { errors_found |= ERROR_OBJECT; - return error("%s: object corrupt or missing", sha1_to_hex(sha1)); + return error("%s: object corrupt or missing", oid_to_hex(oid)); } 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; - if (fsck_sha1(sha1)) - errors_found |= ERROR_OBJECT; - 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 void fsck_dir(int i, char *path) -{ - 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]; - - 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 (starts_with(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 void fsck_handle_reflog_sha1(const char *refname, unsigned char *sha1) +static void fsck_handle_reflog_oid(const char *refname, struct object_id *oid, + timestamp_t timestamp) { struct object *obj; - if (!is_null_sha1(sha1)) { - obj = lookup_object(sha1); - if (obj) { + if (!is_null_oid(oid)) { + obj = lookup_object(oid->hash); + if (obj && (obj->flags & HAS_OBJ)) { + if (timestamp && name_objects) + add_decoration(fsck_walk_options.object_names, + obj, + xstrfmt("%s@{%"PRItime"}", refname, timestamp)); obj->used = 1; mark_object_reachable(obj); } else { - error("%s: invalid reflog entry %s", refname, sha1_to_hex(sha1)); + error("%s: invalid reflog entry %s", refname, oid_to_hex(oid)); errors_found |= ERROR_REACHABLE; } } } -static int fsck_handle_reflog_ent(unsigned char *osha1, unsigned char *nsha1, - const char *email, unsigned long timestamp, int tz, +static int fsck_handle_reflog_ent(struct object_id *ooid, struct object_id *noid, + const char *email, timestamp_t timestamp, int tz, const char *message, void *cb_data) { const char *refname = cb_data; if (verbose) fprintf(stderr, "Checking reflog %s->%s\n", - sha1_to_hex(osha1), sha1_to_hex(nsha1)); + oid_to_hex(ooid), oid_to_hex(noid)); - fsck_handle_reflog_sha1(refname, osha1); - fsck_handle_reflog_sha1(refname, nsha1); + fsck_handle_reflog_oid(refname, ooid, 0); + fsck_handle_reflog_oid(refname, noid, timestamp); 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, (void *)logname); return 0; } -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); 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; + if (name_objects) + add_decoration(fsck_walk_options.object_names, + obj, xstrdup(refname)); mark_object_reachable(obj); return 0; @@ -510,8 +466,8 @@ 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); + 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); @@ -534,9 +490,60 @@ static void get_default_heads(void) } } +static struct object *parse_loose_object(const struct object_id *oid, + const char *path) +{ + struct object *obj; + void *contents; + enum object_type type; + unsigned long size; + int eaten; + + if (read_loose_object(path, oid->hash, &type, &size, &contents) < 0) + return NULL; + + if (!contents && type != OBJ_BLOB) + die("BUG: read_loose_object streamed a non-blob"); + + obj = parse_object_buffer(oid, type, size, contents, &eaten); + + if (!eaten) + free(contents); + return obj; +} + +static int fsck_loose(const struct object_id *oid, const char *path, void *data) +{ + struct object *obj = parse_loose_object(oid, path); + + if (!obj) { + errors_found |= ERROR_OBJECT; + error("%s: object corrupt or missing: %s", + oid_to_hex(oid), path); + return 0; /* keep checking other objects */ + } + + obj->flags = HAS_OBJ; + if (fsck_obj(obj)) + 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) @@ -544,36 +551,38 @@ static void fsck_object_dir(const char *path) 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); - } + + 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", 0, head_sha1, &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 (!starts_with(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); } @@ -589,13 +598,17 @@ static int fsck_cache_tree(struct cache_tree *it) fprintf(stderr, "Checking cache tree\n"); if (0 <= it->entry_count) { - struct object *obj = parse_object(it->sha1); + struct object *obj = parse_object(&it->oid); if (!obj) { error("%s: invalid sha1 pointer in cache-tree", - sha1_to_hex(it->sha1)); + oid_to_hex(&it->oid)); + errors_found |= ERROR_REFS; return 1; } obj->used = 1; + if (name_objects) + add_decoration(fsck_walk_options.object_names, + obj, xstrdup(":")); mark_object_reachable(obj); if (obj->type != OBJ_TREE) err |= objerror(obj, "non-tree in cache-tree"); @@ -605,6 +618,29 @@ static int fsck_cache_tree(struct cache_tree *it) return err; } +static void mark_object_for_connectivity(const struct object_id *oid) +{ + struct object *obj = lookup_unknown_object(oid->hash); + obj->flags |= HAS_OBJ; +} + +static int mark_loose_for_connectivity(const struct object_id *oid, + const char *path, + void *data) +{ + mark_object_for_connectivity(oid); + return 0; +} + +static int mark_packed_for_connectivity(const struct object_id *oid, + struct packed_git *pack, + uint32_t pos, + void *data) +{ + mark_object_for_connectivity(oid); + return 0; +} + static char const * const fsck_usage[] = { N_("git fsck [<options>] [<object>...]"), NULL @@ -619,10 +655,12 @@ static struct option fsck_opts[] = { 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_BOOL(0, "name-objects", &name_objects, N_("show verbose names for reachable objects")), OPT_END(), }; @@ -636,6 +674,12 @@ int cmd_fsck(int argc, const char **argv, const char *prefix) 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) @@ -646,42 +690,48 @@ int cmd_fsck(int argc, const char **argv, const char *prefix) include_reflogs = 0; } - 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 (name_objects) + fsck_walk_options.object_names = + xcalloc(1, sizeof(struct decoration)); - if (check_full) { - struct packed_git *p; - uint32_t total = 0, count = 0; - struct progress *progress = NULL; + git_config(fsck_config, NULL); - prepare_packed_git(); - - if (show_progress) { + fsck_head_link(); + if (connectivity_only) { + for_each_loose_object(mark_loose_for_connectivity, NULL, 0); + for_each_packed_object(mark_packed_for_connectivity, NULL, 0); + } else { + fsck_object_dir(get_object_directory()); + + prepare_alt_odb(); + for (alt = alt_odb_list; alt; alt = alt->next) + fsck_object_dir(alt->path); + + if (check_full) { + struct packed_git *p; + uint32_t total = 0, count = 0; + struct progress *progress = NULL; + + prepare_packed_git(); + + if (show_progress) { + for (p = packed_git; p; p = p->next) { + if (open_pack_index(p)) + continue; + total += p->num_objects; + } + + progress = start_progress(_("Checking objects"), total); + } for (p = packed_git; p; p = p->next) { - if (open_pack_index(p)) - continue; - total += p->num_objects; + /* verify gives error messages itself */ + if (verify_pack(p, fsck_obj_buffer, + progress, count)) + errors_found |= ERROR_PACK; + count += p->num_objects; } - - progress = start_progress(_("Checking objects"), total); + stop_progress(&progress); } - for (p = packed_git; p; p = p->next) { - /* verify gives error messages itself */ - if (verify_pack(p, fsck_obj_buffer, - progress, count)) - errors_found |= ERROR_PACK; - count += p->num_objects; - } - stop_progress(&progress); } heads = 0; @@ -691,16 +741,22 @@ int cmd_fsck(int argc, const char **argv, const char *prefix) if (!get_sha1(arg, sha1)) { struct object *obj = lookup_object(sha1); - /* Error is printed by lookup_object(). */ - if (!obj) + if (!obj || !(obj->flags & HAS_OBJ)) { + error("%s: object missing", sha1_to_hex(sha1)); + errors_found |= ERROR_OBJECT; continue; + } obj->used = 1; + if (name_objects) + add_decoration(fsck_walk_options.object_names, + obj, xstrdup(arg)); mark_object_reachable(obj); heads++; continue; } error("invalid parameter: expected sha1, got '%s'", arg); + errors_found |= ERROR_OBJECT; } /* @@ -708,12 +764,13 @@ int cmd_fsck(int argc, const char **argv, const char *prefix) * default ones from .git/refs. We also consider the index file * in this case (ie this implies --cache). */ - if (!heads) { + if (!argc) { get_default_heads(); keep_cache_objects = 1; } if (keep_cache_objects) { + verify_index_checksum = 1; read_cache(); for (i = 0; i < active_nr; i++) { unsigned int mode; @@ -723,11 +780,15 @@ int cmd_fsck(int argc, const char **argv, const char *prefix) mode = active_cache[i]->ce_mode; if (S_ISGITLINK(mode)) continue; - blob = lookup_blob(active_cache[i]->sha1); + blob = lookup_blob(&active_cache[i]->oid); if (!blob) continue; obj = &blob->object; obj->used = 1; + if (name_objects) + add_decoration(fsck_walk_options.object_names, + obj, + xstrfmt(":%s", active_cache[i]->name)); mark_object_reachable(obj); } if (active_cache_tree) diff --git a/builtin/gc.c b/builtin/gc.c index 5c634afc00..f484eda43c 100644 --- a/builtin/gc.c +++ b/builtin/gc.c @@ -11,6 +11,7 @@ */ #include "builtin.h" +#include "tempfile.h" #include "lockfile.h" #include "parse-options.h" #include "run-command.h" @@ -27,30 +28,78 @@ static const char * const builtin_gc_usage[] = { static int pack_refs = 1; static int prune_reflogs = 1; -static int aggressive_depth = 250; +static int aggressive_depth = 50; static int aggressive_window = 250; static int gc_auto_threshold = 6700; static int gc_auto_pack_limit = 50; static int detach_auto = 1; +static timestamp_t gc_log_expire_time; +static const char *gc_log_expire = "1.day.ago"; static const char *prune_expire = "2.weeks.ago"; +static const char *prune_worktrees_expire = "3.months.ago"; 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 char *pidfile; +static struct tempfile pidfile; +static struct lock_file log_lock; -static void remove_pidfile(void) +static struct string_list pack_garbage = STRING_LIST_INIT_DUP; + +static void clean_pack_garbage(void) +{ + 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 (pidfile) - unlink(pidfile); + if (seen_bits == PACKDIR_FILE_IDX) + string_list_append(&pack_garbage, path); +} + +static void process_log_file(void) +{ + struct stat st; + if (fstat(get_lock_file_fd(&log_lock), &st)) { + /* + * Perhaps there was an i/o error or another + * unlikely situation. Try to make a note of + * this in gc.log along with any existing + * messages. + */ + int saved_errno = errno; + fprintf(stderr, _("Failed to fstat %s: %s"), + get_tempfile_path(&log_lock.tempfile), + strerror(saved_errno)); + fflush(stderr); + commit_lock_file(&log_lock); + errno = saved_errno; + } else if (st.st_size) { + /* There was some error recorded in the lock file */ + commit_lock_file(&log_lock); + } else { + /* No error, clean up any old gc.log */ + unlink(git_path("gc.log")); + rollback_lock_file(&log_lock); + } } -static void remove_pidfile_on_signal(int signo) +static void process_log_file_at_exit(void) { - remove_pidfile(); + fflush(stderr); + process_log_file(); +} + +static void process_log_file_on_signal(int signo) +{ + process_log_file(); sigchain_pop(signo); raise(signo); } @@ -71,16 +120,10 @@ static void gc_config(void) 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_get_expiry("gc.pruneexpire", &prune_expire); + git_config_get_expiry("gc.worktreepruneexpire", &prune_worktrees_expire); + git_config_get_expiry("gc.logexpiry", &gc_log_expire); - if (!git_config_get_string_const("gc.pruneexpire", &prune_expire)) { - if (strcmp(prune_expire, "now")) { - unsigned long now = approxidate("now"); - if (approxidate(prune_expire) >= now) { - git_die_config("gc.pruneexpire", _("Invalid gc.pruneexpire: '%s'"), - prune_expire); - } - } - } git_config(git_default_config, NULL); } @@ -92,8 +135,6 @@ static int too_many_loose_objects(void) * distributed, we can check only one and get a reasonable * estimate. */ - char path[PATH_MAX]; - const char *objdir = get_object_directory(); DIR *dir; struct dirent *ent; int auto_threshold; @@ -103,11 +144,7 @@ static int too_many_loose_objects(void) if (gc_auto_threshold <= 0) return 0; - if (sizeof(path) <= snprintf(path, sizeof(path), "%s/17", objdir)) { - warning(_("insanely long object directory %.*s"), 50, objdir); - return 0; - } - dir = opendir(path); + dir = opendir(git_path("objects/17")); if (!dir) return 0; @@ -145,7 +182,7 @@ static int too_many_packs(void) */ cnt++; } - return gc_auto_pack_limit <= cnt; + return gc_auto_pack_limit < cnt; } static void add_repack_all_option(void) @@ -159,6 +196,11 @@ static void add_repack_all_option(void) } } +static void add_repack_incremental_option(void) +{ + argv_array_push(&repack, "--no-write-bitmap-index"); +} + static int need_to_gc(void) { /* @@ -176,7 +218,9 @@ static int need_to_gc(void) */ if (too_many_packs()) add_repack_all_option(); - else if (!too_many_loose_objects()) + else if (too_many_loose_objects()) + add_repack_incremental_option(); + else return 0; if (run_hook_le(NULL, "pre-auto-gc", NULL)) @@ -188,26 +232,32 @@ static int need_to_gc(void) static const char *lock_repo_for_gc(int force, pid_t* ret_pid) { static struct lock_file lock; - char my_host[128]; + char my_host[HOST_NAME_MAX + 1]; struct strbuf sb = STRBUF_INIT; struct stat st; uintmax_t pid; FILE *fp; int fd; + char *pidfile_path; - if (pidfile) + if (is_tempfile_active(&pidfile)) /* already locked */ return NULL; - if (gethostname(my_host, sizeof(my_host))) - strcpy(my_host, "unknown"); + if (xgethostname(my_host, sizeof(my_host))) + xsnprintf(my_host, sizeof(my_host), "unknown"); - fd = hold_lock_file_for_update(&lock, git_path("gc.pid"), + 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]; + static char locking_host[HOST_NAME_MAX + 1]; + static char *scan_fmt; int should_exit; - fp = fopen(git_path("gc.pid"), "r"); + + if (!scan_fmt) + scan_fmt = xstrfmt("%s %%%dc", "%"SCNuMAX, HOST_NAME_MAX); + fp = fopen(pidfile_path, "r"); memset(locking_host, 0, sizeof(locking_host)); should_exit = fp != NULL && @@ -222,7 +272,7 @@ static const char *lock_repo_for_gc(int force, pid_t* ret_pid) * running. */ time(NULL) - st.st_mtime <= 12 * 3600 && - fscanf(fp, "%"PRIuMAX" %127c", &pid, locking_host) == 2 && + fscanf(fp, scan_fmt, &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) @@ -231,6 +281,7 @@ static const char *lock_repo_for_gc(int force, pid_t* ret_pid) if (fd >= 0) rollback_lock_file(&lock); *ret_pid = pid; + free(pidfile_path); return locking_host; } } @@ -240,12 +291,42 @@ static const char *lock_repo_for_gc(int force, pid_t* ret_pid) 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 = 0; + struct stat st; + char *gc_log_path = git_pathdup("gc.log"); - pidfile = git_pathdup("gc.pid"); - sigchain_push_common(remove_pidfile_on_signal); - atexit(remove_pidfile); + if (stat(gc_log_path, &st)) { + if (errno == ENOENT) + goto done; - return NULL; + ret = error_errno(_("Can't stat %s"), gc_log_path); + goto done; + } + + if (st.st_mtime < gc_log_expire_time) + goto done; + + ret = strbuf_read_file(&sb, gc_log_path, 0); + if (ret > 0) + ret = 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"), + gc_log_path, sb.buf); + strbuf_release(&sb); +done: + free(gc_log_path); + return ret; } static int gc_before_repack(void) @@ -269,6 +350,7 @@ int cmd_gc(int argc, const char **argv, const char *prefix) int force = 0; const char *name; pid_t pid; + int daemonized = 0; struct option builtin_gc_options[] = { OPT__QUIET(&quiet, N_("suppress progress reporting")), @@ -287,10 +369,14 @@ int cmd_gc(int argc, const char **argv, const char *prefix) 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, "prune", "--expire", NULL); + argv_array_pushl(&prune_worktrees, "worktree", "prune", "--expire", NULL); argv_array_pushl(&rerere, "rerere", "gc", NULL); + /* default expiry time, overwritten in gc_config */ gc_config(); + if (parse_expiry_date(gc_log_expire, &gc_log_expire_time)) + die(_("Failed to parse gc.logexpiry value %s"), gc_log_expire); if (pack_refs < 0) pack_refs = !is_bare_repository(); @@ -324,13 +410,16 @@ int cmd_gc(int argc, const char **argv, const char *prefix) 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 */ - daemonize(); + daemonized = !daemonize(); } } else add_repack_all_option(); @@ -343,26 +432,51 @@ int cmd_gc(int argc, const char **argv, const char *prefix) 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 (gc_before_repack()) return -1; - if (run_command_v_opt(repack.argv, RUN_GIT_CMD)) - return error(FAILED_RUN, repack.argv[0]); + 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_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; " "run 'git prune' to remove them.")); + if (!daemonized) + unlink(git_path("gc.log")); + return 0; } diff --git a/builtin/get-tar-commit-id.c b/builtin/get-tar-commit-id.c index 6f4147ad02..e21c5416cd 100644 --- a/builtin/get-tar-commit-id.c +++ b/builtin/get-tar-commit-id.c @@ -8,7 +8,7 @@ #include "quote.h" static const char builtin_get_tar_commit_id_usage[] = -"git get-tar-commit-id < <tarfile>"; +"git get-tar-commit-id"; /* ustar header + extended global header content */ #define RECORDSIZE (512) diff --git a/builtin/grep.c b/builtin/grep.c index d04f4400d9..d188871556 100644 --- a/builtin/grep.c +++ b/builtin/grep.c @@ -18,17 +18,27 @@ #include "quote.h" #include "dir.h" #include "pathspec.h" +#include "submodule.h" +#include "submodule-config.h" static char const * const grep_usage[] = { N_("git grep [<options>] [-e] <pattern> [<rev>...] [[--] <path>...]"), NULL }; -static int use_threads = 1; +static const char *super_prefix; +static int recurse_submodules; +static struct argv_array submodule_options = ARGV_ARRAY_INIT; +static const char *parent_basename; + +static int grep_submodule_launch(struct grep_opt *opt, + const struct grep_source *gs); + +#define GREP_NUM_THREADS_DEFAULT 8 +static int num_threads; #ifndef NO_PTHREADS -#define THREADS 8 -static pthread_t threads[THREADS]; +static pthread_t *threads; /* We use one producer thread and THREADS consumer * threads. The producer adds struct work_items to 'todo' and the @@ -63,14 +73,14 @@ static pthread_mutex_t grep_mutex; static inline void grep_lock(void) { - if (use_threads) - pthread_mutex_lock(&grep_mutex); + assert(num_threads); + pthread_mutex_lock(&grep_mutex); } static inline void grep_unlock(void) { - if (use_threads) - pthread_mutex_unlock(&grep_mutex); + assert(num_threads); + pthread_mutex_unlock(&grep_mutex); } /* Signalled when a new work_item is added to todo. */ @@ -174,7 +184,10 @@ static void *run(void *arg) break; opt->output_priv = w; - hit |= grep_source(opt, &w->source); + if (w->source.type == GREP_SOURCE_SUBMODULE) + hit |= grep_submodule_launch(opt, &w->source); + else + hit |= grep_source(opt, &w->source); grep_source_clear_data(&w->source); work_done(w); } @@ -206,7 +219,8 @@ static void start_threads(struct grep_opt *opt) 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; @@ -238,12 +252,14 @@ 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(&grep_read_mutex); pthread_mutex_destroy(&grep_attr_mutex); @@ -267,35 +283,65 @@ static int grep_cmd_config(const char *var, const char *value, void *cb) int st = grep_config(var, value, cb); if (git_color_default_config(var, value, cb) < 0) st = -1; + + 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); +#ifdef NO_PTHREADS + else if (num_threads && num_threads != 1) { + /* + * TRANSLATORS: %s is the configuration + * variable for tweaking threads, currently + * grep.threads + */ + warning(_("no threads support, ignoring %s"), var); + num_threads = 0; + } +#endif + } + + if (!strcmp(var, "submodule.recurse")) + recurse_submodules = git_config_bool(var, value); + return st; } -static void *lock_and_read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size) +static void *lock_and_read_oid_file(const struct object_id *oid, enum object_type *type, unsigned long *size) { void *data; grep_read_lock(); - data = read_sha1_file(sha1, type, size); + data = read_sha1_file(oid->hash, type, size); grep_read_unlock(); return data; } -static int grep_sha1(struct grep_opt *opt, const unsigned char *sha1, +static int grep_oid(struct grep_opt *opt, const struct object_id *oid, const char *filename, int tree_name_len, const char *path) { struct strbuf pathbuf = STRBUF_INIT; - if (opt->relative && opt->prefix_length) { - quote_path_relative(filename + tree_name_len, opt->prefix, &pathbuf); - strbuf_insert(&pathbuf, 0, filename, tree_name_len); + if (super_prefix) { + strbuf_add(&pathbuf, filename, tree_name_len); + strbuf_addstr(&pathbuf, super_prefix); + strbuf_addstr(&pathbuf, filename + tree_name_len); } else { strbuf_addstr(&pathbuf, filename); } + if (opt->relative && opt->prefix_length) { + char *name = strbuf_detach(&pathbuf, NULL); + quote_path_relative(name + tree_name_len, opt->prefix, &pathbuf); + strbuf_insert(&pathbuf, 0, name, tree_name_len); + free(name); + } + #ifndef NO_PTHREADS - if (use_threads) { - add_work(opt, GREP_SOURCE_SHA1, pathbuf.buf, path, sha1); + if (num_threads) { + add_work(opt, GREP_SOURCE_SHA1, pathbuf.buf, path, oid); strbuf_release(&pathbuf); return 0; } else @@ -304,7 +350,7 @@ static int grep_sha1(struct grep_opt *opt, const unsigned char *sha1, struct grep_source gs; int hit; - grep_source_init(&gs, GREP_SOURCE_SHA1, pathbuf.buf, path, sha1); + grep_source_init(&gs, GREP_SOURCE_SHA1, pathbuf.buf, path, oid); strbuf_release(&pathbuf); hit = grep_source(opt, &gs); @@ -317,13 +363,18 @@ static int grep_file(struct grep_opt *opt, const char *filename) { struct strbuf buf = STRBUF_INIT; - if (opt->relative && opt->prefix_length) - quote_path_relative(filename, opt->prefix, &buf); - else - strbuf_addstr(&buf, filename); + if (super_prefix) + strbuf_addstr(&buf, super_prefix); + strbuf_addstr(&buf, filename); + + if (opt->relative && opt->prefix_length) { + char *name = strbuf_detach(&buf, NULL); + quote_path_relative(name, opt->prefix, &buf); + free(name); + } #ifndef NO_PTHREADS - if (use_threads) { + if (num_threads) { add_work(opt, GREP_SOURCE_FILE, buf.buf, filename, filename); strbuf_release(&buf); return 0; @@ -354,43 +405,325 @@ 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; - status = run_command_v_opt_cd_env(argv, RUN_USING_SHELL, prefix, NULL); + status = run_command(&child); if (status) exit(status); - free(argv); } -static int grep_cache(struct grep_opt *opt, const struct pathspec *pathspec, int cached) +static void compile_submodule_options(const struct grep_opt *opt, + const char **argv, + int cached, int untracked, + int opt_exclude, int use_index, + int pattern_type_arg) +{ + struct grep_pat *pattern; + + if (recurse_submodules) + argv_array_push(&submodule_options, "--recurse-submodules"); + + if (cached) + argv_array_push(&submodule_options, "--cached"); + if (!use_index) + argv_array_push(&submodule_options, "--no-index"); + if (untracked) + argv_array_push(&submodule_options, "--untracked"); + if (opt_exclude > 0) + argv_array_push(&submodule_options, "--exclude-standard"); + + if (opt->invert) + argv_array_push(&submodule_options, "-v"); + if (opt->ignore_case) + argv_array_push(&submodule_options, "-i"); + if (opt->word_regexp) + argv_array_push(&submodule_options, "-w"); + switch (opt->binary) { + case GREP_BINARY_NOMATCH: + argv_array_push(&submodule_options, "-I"); + break; + case GREP_BINARY_TEXT: + argv_array_push(&submodule_options, "-a"); + break; + default: + break; + } + if (opt->allow_textconv) + argv_array_push(&submodule_options, "--textconv"); + if (opt->max_depth != -1) + argv_array_pushf(&submodule_options, "--max-depth=%d", + opt->max_depth); + if (opt->linenum) + argv_array_push(&submodule_options, "-n"); + if (!opt->pathname) + argv_array_push(&submodule_options, "-h"); + if (!opt->relative) + argv_array_push(&submodule_options, "--full-name"); + if (opt->name_only) + argv_array_push(&submodule_options, "-l"); + if (opt->unmatch_name_only) + argv_array_push(&submodule_options, "-L"); + if (opt->null_following_name) + argv_array_push(&submodule_options, "-z"); + if (opt->count) + argv_array_push(&submodule_options, "-c"); + if (opt->file_break) + argv_array_push(&submodule_options, "--break"); + if (opt->heading) + argv_array_push(&submodule_options, "--heading"); + if (opt->pre_context) + argv_array_pushf(&submodule_options, "--before-context=%d", + opt->pre_context); + if (opt->post_context) + argv_array_pushf(&submodule_options, "--after-context=%d", + opt->post_context); + if (opt->funcname) + argv_array_push(&submodule_options, "-p"); + if (opt->funcbody) + argv_array_push(&submodule_options, "-W"); + if (opt->all_match) + argv_array_push(&submodule_options, "--all-match"); + if (opt->debug) + argv_array_push(&submodule_options, "--debug"); + if (opt->status_only) + argv_array_push(&submodule_options, "-q"); + + switch (pattern_type_arg) { + case GREP_PATTERN_TYPE_BRE: + argv_array_push(&submodule_options, "-G"); + break; + case GREP_PATTERN_TYPE_ERE: + argv_array_push(&submodule_options, "-E"); + break; + case GREP_PATTERN_TYPE_FIXED: + argv_array_push(&submodule_options, "-F"); + break; + case GREP_PATTERN_TYPE_PCRE: + argv_array_push(&submodule_options, "-P"); + break; + case GREP_PATTERN_TYPE_UNSPECIFIED: + break; + default: + die("BUG: Added a new grep pattern type without updating switch statement"); + } + + for (pattern = opt->pattern_list; pattern != NULL; + pattern = pattern->next) { + switch (pattern->token) { + case GREP_PATTERN: + argv_array_pushf(&submodule_options, "-e%s", + pattern->pattern); + break; + case GREP_AND: + case GREP_OPEN_PAREN: + case GREP_CLOSE_PAREN: + case GREP_NOT: + case GREP_OR: + argv_array_push(&submodule_options, pattern->pattern); + break; + /* BODY and HEAD are not used by git-grep */ + case GREP_PATTERN_BODY: + case GREP_PATTERN_HEAD: + break; + } + } + + /* + * Limit number of threads for child process to use. + * This is to prevent potential fork-bomb behavior of git-grep as each + * submodule process has its own thread pool. + */ + argv_array_pushf(&submodule_options, "--threads=%d", + (num_threads + 1) / 2); + + /* Add Pathspecs */ + argv_array_push(&submodule_options, "--"); + for (; *argv; argv++) + argv_array_push(&submodule_options, *argv); +} + +/* + * Launch child process to grep contents of a submodule + */ +static int grep_submodule_launch(struct grep_opt *opt, + const struct grep_source *gs) +{ + struct child_process cp = CHILD_PROCESS_INIT; + int status, i; + const char *end_of_base; + const char *name; + struct strbuf child_output = STRBUF_INIT; + + end_of_base = strchr(gs->name, ':'); + if (gs->identifier && end_of_base) + name = end_of_base + 1; + else + name = gs->name; + + prepare_submodule_repo_env(&cp.env_array); + argv_array_push(&cp.env_array, GIT_DIR_ENVIRONMENT); + + if (opt->relative && opt->prefix_length) + argv_array_pushf(&cp.env_array, "%s=%s", + GIT_TOPLEVEL_PREFIX_ENVIRONMENT, + opt->prefix); + + /* Add super prefix */ + argv_array_pushf(&cp.args, "--super-prefix=%s%s/", + super_prefix ? super_prefix : "", + name); + argv_array_push(&cp.args, "grep"); + + /* + * Add basename of parent project + * When performing grep on a tree object the filename is prefixed + * with the object's name: 'tree-name:filename'. In order to + * provide uniformity of output we want to pass the name of the + * parent project's object name to the submodule so the submodule can + * prefix its output with the parent's name and not its own SHA1. + */ + if (gs->identifier && end_of_base) + argv_array_pushf(&cp.args, "--parent-basename=%.*s", + (int) (end_of_base - gs->name), + gs->name); + + /* Add options */ + for (i = 0; i < submodule_options.argc; i++) { + /* + * If there is a tree identifier for the submodule, add the + * rev after adding the submodule options but before the + * pathspecs. To do this we listen for the '--' and insert the + * sha1 before pushing the '--' onto the child process argv + * array. + */ + if (gs->identifier && + !strcmp("--", submodule_options.argv[i])) { + argv_array_push(&cp.args, sha1_to_hex(gs->identifier)); + } + + argv_array_push(&cp.args, submodule_options.argv[i]); + } + + cp.git_cmd = 1; + cp.dir = gs->path; + + /* + * Capture output to output buffer and check the return code from the + * child process. A '0' indicates a hit, a '1' indicates no hit and + * anything else is an error. + */ + status = capture_command(&cp, &child_output, 0); + if (status && (status != 1)) { + /* flush the buffer */ + write_or_die(1, child_output.buf, child_output.len); + die("process for submodule '%s' failed with exit code: %d", + gs->name, status); + } + + opt->output(opt, child_output.buf, child_output.len); + strbuf_release(&child_output); + /* invert the return code to make a hit equal to 1 */ + return !status; +} + +/* + * Prep grep structures for a submodule grep + * sha1: the sha1 of the submodule or NULL if using the working tree + * filename: name of the submodule including tree name of parent + * path: location of the submodule + */ +static int grep_submodule(struct grep_opt *opt, const unsigned char *sha1, + const char *filename, const char *path) +{ + if (!is_submodule_initialized(path)) + return 0; + if (!is_submodule_populated_gently(path, NULL)) { + /* + * If searching history, check for the presense of the + * submodule's gitdir before skipping the submodule. + */ + if (sha1) { + const struct submodule *sub = + submodule_from_path(null_sha1, path); + if (sub) + path = git_path("modules/%s", sub->name); + + if (!(is_directory(path) && is_git_directory(path))) + return 0; + } else { + return 0; + } + } + +#ifndef NO_PTHREADS + if (num_threads) { + add_work(opt, GREP_SOURCE_SUBMODULE, filename, path, sha1); + return 0; + } else +#endif + { + struct grep_source gs; + int hit; + + grep_source_init(&gs, GREP_SOURCE_SUBMODULE, + filename, path, sha1); + hit = grep_submodule_launch(opt, &gs); + + grep_source_clear(&gs); + return hit; + } +} + +static int grep_cache(struct grep_opt *opt, const struct pathspec *pathspec, + int cached) { int hit = 0; int nr; + struct strbuf name = STRBUF_INIT; + int name_base_len = 0; + if (super_prefix) { + name_base_len = strlen(super_prefix); + strbuf_addstr(&name, super_prefix); + } + read_cache(); for (nr = 0; nr < active_nr; nr++) { const struct cache_entry *ce = active_cache[nr]; - if (!S_ISREG(ce->ce_mode)) - continue; - if (!ce_path_match(ce, pathspec, NULL)) + strbuf_setlen(&name, name_base_len); + strbuf_addstr(&name, ce->name); + + if (S_ISREG(ce->ce_mode) && + match_pathspec(pathspec, name.buf, name.len, 0, NULL, + S_ISDIR(ce->ce_mode) || + S_ISGITLINK(ce->ce_mode))) { + /* + * If CE_VALID is on, we assume worktree file and its + * cache entry are identical, even if worktree file has + * been modified, so use cache version instead + */ + if (cached || (ce->ce_flags & CE_VALID) || + ce_skip_worktree(ce)) { + if (ce_stage(ce) || ce_intent_to_add(ce)) + continue; + hit |= grep_oid(opt, &ce->oid, ce->name, + 0, ce->name); + } else { + hit |= grep_file(opt, ce->name); + } + } else if (recurse_submodules && S_ISGITLINK(ce->ce_mode) && + submodule_path_match(pathspec, name.buf, NULL)) { + hit |= grep_submodule(opt, NULL, ce->name, ce->name); + } else { continue; - /* - * If CE_VALID is on, we assume worktree file and its cache entry - * are identical, even if worktree file has been modified, so use - * cache version instead - */ - 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, ce->name); } - else - hit |= grep_file(opt, ce->name); + if (ce_stage(ce)) { do { nr++; @@ -401,6 +734,8 @@ static int grep_cache(struct grep_opt *opt, const struct pathspec *pathspec, int if (hit && opt->status_only) break; } + + strbuf_release(&name); return hit; } @@ -412,12 +747,22 @@ static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec, enum interesting match = entry_not_interesting; struct name_entry entry; int old_baselen = base->len; + struct strbuf name = STRBUF_INIT; + int name_base_len = 0; + if (super_prefix) { + strbuf_addstr(&name, super_prefix); + name_base_len = name.len; + } while (tree_entry(tree, &entry)) { int te_len = tree_entry_len(&entry); if (match != all_entries_interesting) { - match = tree_entry_interesting(&entry, base, tn_len, pathspec); + strbuf_addstr(&name, base->buf + tn_len); + match = tree_entry_interesting(&entry, &name, + 0, pathspec); + strbuf_setlen(&name, name_base_len); + if (match == all_entries_not_interesting) break; if (match == entry_not_interesting) @@ -427,31 +772,36 @@ 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_oid(opt, entry.oid, base->buf, tn_len, check_attr ? base->buf + tn_len : NULL); - } - else if (S_ISDIR(entry.mode)) { + } else if (S_ISDIR(entry.mode)) { enum object_type type; struct tree_desc sub; void *data; unsigned long size; - data = lock_and_read_sha1_file(entry.sha1, &type, &size); + data = lock_and_read_oid_file(entry.oid, &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, check_attr); free(data); + } else if (recurse_submodules && S_ISGITLINK(entry.mode)) { + hit |= grep_submodule(opt, entry.oid->hash, base->buf, + base->buf + tn_len); } + strbuf_setlen(base, old_baselen); if (hit && opt->status_only) break; } + + strbuf_release(&name); return hit; } @@ -459,7 +809,7 @@ static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec, struct object *obj, const char *name, const char *path) { if (obj->type == OBJ_BLOB) - return grep_sha1(opt, obj->sha1, name, 0, path); + return grep_oid(opt, &obj->oid, name, 0, path); if (obj->type == OBJ_COMMIT || obj->type == OBJ_TREE) { struct tree_desc tree; void *data; @@ -468,12 +818,16 @@ static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec, int hit, len; grep_read_lock(); - data = read_object_with_reference(obj->sha1, tree_type, + data = read_object_with_reference(obj->oid.hash, tree_type, &size, NULL); 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)); + + /* Use parent's name as base when recursing submodules */ + if (recurse_submodules && parent_basename) + name = parent_basename; len = name ? strlen(name) : 0; strbuf_init(&base, PATH_MAX + len + 1); @@ -501,6 +855,12 @@ 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); + + /* load the gitmodules file for this rev */ + if (recurse_submodules) { + submodule_free(); + gitmodules_config_sha1(real_obj->oid.hash); + } if (grep_object(opt, pathspec, real_obj, list->objects[i].name, list->objects[i].path)) { hit = 1; if (opt->status_only) @@ -511,16 +871,18 @@ 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); + fill_directory(&dir, &the_index, pathspec); for (i = 0; i < dir.nr; i++) { if (!dir_path_match(dir.entries[i], pathspec, 0, NULL)) continue; @@ -562,7 +924,7 @@ 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) { + while (strbuf_getline(&sb, patterns) == 0) { /* ignore empty line like grep does */ if (sb.len == 0) continue; @@ -612,11 +974,6 @@ 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; @@ -632,6 +989,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix) int dummy; int use_index = 1; int pattern_type_arg = GREP_PATTERN_TYPE_UNSPECIFIED; + int allow_revs; struct option options[] = { OPT_BOOL(0, "cached", &cached, @@ -642,6 +1000,11 @@ int cmd_grep(int argc, const char **argv, const char *prefix) N_("search in both tracked and untracked files")), OPT_SET_INT(0, "exclude-standard", &opt_exclude, N_("ignore files specified via '.gitignore'"), 1), + OPT_BOOL(0, "recurse-submodules", &recurse_submodules, + N_("recursively search in each submodule")), + OPT_STRING(0, "parent-basename", &parent_basename, + N_("basename"), + N_("prepend parent project's basename to output")), OPT_GROUP(""), OPT_BOOL('v', "invert-match", &opt.invert, N_("show non-matching lines")), @@ -702,6 +1065,8 @@ int cmd_grep(int argc, const char **argv, const char *prefix) N_("show <n> context lines before matches")), OPT_INTEGER('A', "after-context", &opt.post_context, 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_BOOL('p', "show-function", &opt.funcname, @@ -738,21 +1103,13 @@ int cmd_grep(int argc, const char **argv, const char *prefix) PARSE_OPT_OPTARG, NULL, (intptr_t)default_pager }, OPT_BOOL(0, "ext-grep", &external_grep_allowed__ignored, N_("allow calling of grep(1) (ignored by this build)")), - { OPTION_CALLBACK, 0, "help-all", NULL, NULL, N_("show usage"), - PARSE_OPT_HIDDEN | PARSE_OPT_NOARG, help_callback }, 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); - init_grep_defaults(); git_config(grep_cmd_config, NULL); grep_init(&opt, prefix); + super_prefix = get_super_prefix(); /* * If there is no -- then the paths must exist in the working @@ -766,13 +1123,18 @@ 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); + PARSE_OPT_STOP_AT_NON_OPTION); grep_commit_pattern_type(pattern_type_arg, &opt); - if (use_index && !startup_info->have_repository) - /* die the same way as if we did it at the beginning */ - setup_git_directory(); + 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(); + } /* * skip a -- separator; we know it cannot be @@ -801,7 +1163,6 @@ 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) @@ -811,35 +1172,86 @@ int cmd_grep(int argc, const char **argv, const char *prefix) compile_grep_patterns(&opt); - /* Check revs and then paths */ + /* + * We have to find "--" in a separate pass, because its presence + * influences how we will parse arguments that come before it. + */ + for (i = 0; i < argc; i++) { + if (!strcmp(argv[i], "--")) { + seen_dashdash = 1; + break; + } + } + + /* + * Resolve any rev arguments. If we have a dashdash, then everything up + * to it must resolve as a rev. If not, then we stop at the first + * non-rev and assume everything else is a path. + */ + allow_revs = use_index && !untracked; for (i = 0; i < argc; i++) { const char *arg = argv[i]; - unsigned char sha1[20]; + struct object_id oid; struct object_context oc; - /* Is it a rev? */ - 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; - } + struct object *object; + if (!strcmp(arg, "--")) { i++; - seen_dashdash = 1; + break; } - break; + + if (!allow_revs) { + if (seen_dashdash) + die(_("--no-index or --untracked cannot be used with revs")); + break; + } + + if (get_sha1_with_context(arg, GET_SHA1_RECORD_PATH, + oid.hash, &oc)) { + if (seen_dashdash) + die(_("unable to resolve revision: %s"), arg); + break; + } + + object = parse_object_or_die(&oid, arg); + if (!seen_dashdash) + verify_non_filename(prefix, arg); + add_object_array_with_path(object, arg, &list, oc.mode, oc.path); + free(oc.path); } + /* + * Anything left over is presumed to be a path. But in the non-dashdash + * "do what I mean" case, we verify and complain when that isn't true. + */ + if (!seen_dashdash) { + int j; + for (j = i; j < argc; j++) + verify_filename(prefix, argv[j], j == i && allow_revs); + } + + 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; + #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; + if (num_threads) + warning(_("no threads support, ignoring --threads")); + num_threads = 0; #endif #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)) @@ -848,20 +1260,13 @@ int cmd_grep(int argc, const char **argv, const char *prefix) } #endif - /* The rest are paths */ - if (!seen_dashdash) { - int j; - for (j = i; j < argc; j++) - verify_filename(prefix, argv[j], j == i); + if (recurse_submodules) { + gitmodules_config(); + compile_submodule_options(&opt, argv + i, cached, untracked, + opt_exclude, use_index, + pattern_type_arg); } - 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; - if (show_in_pager && (cached || list.nr)) die(_("--open-files-in-pager only works on the worktree")); @@ -885,6 +1290,9 @@ int cmd_grep(int argc, const char **argv, const char *prefix) } } + if (recurse_submodules && (!use_index || untracked)) + die(_("option not supported with --recurse-submodules.")); + if (!show_in_pager && !opt.status_only) setup_pager(); @@ -893,9 +1301,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix) if (!use_index || untracked) { 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) { @@ -909,10 +1315,11 @@ 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); + clear_pathspec(&pathspec); free_grep_patterns(&opt); return !hit; } diff --git a/builtin/hash-object.c b/builtin/hash-object.c index 07fef3cc6b..bbeaf20bcc 100644 --- a/builtin/hash-object.c +++ b/builtin/hash-object.c @@ -58,27 +58,28 @@ static void hash_object(const char *path, const char *type, const char *vpath, 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, no_filters ? NULL : buf.buf, flags, literally); } strbuf_release(&buf); - strbuf_release(&nbuf); + strbuf_release(&unquoted); } 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 < <list-of-paths>"), + N_("git hash-object --stdin-paths"), NULL }; const char *type = blob_type; @@ -86,6 +87,7 @@ int cmd_hash_object(int argc, const char **argv, const char *prefix) int stdin_paths = 0; int no_filters = 0; int literally = 0; + int nongit = 0; unsigned flags = HASH_FORMAT_CHECK; const char *vpath = NULL; const struct option hash_object_options[] = { @@ -100,18 +102,18 @@ int cmd_hash_object(int argc, const char **argv, const char *prefix) OPT_END() }; int i; - int prefix_length = -1; const char *errstr = NULL; argc = parse_options(argc, argv, NULL, hash_object_options, hash_object_usage, 0); - if (flags & HASH_WRITE_OBJECT) { + if (flags & HASH_WRITE_OBJECT) prefix = setup_git_directory(); - prefix_length = prefix ? strlen(prefix) : 0; - if (vpath && prefix) - vpath = prefix_filename(prefix, prefix_length, vpath); - } + else + prefix = setup_git_directory_gently(&nongit); + + if (vpath && prefix) + vpath = xstrdup(prefix_filename(prefix, vpath)); git_config(git_default_config, NULL); @@ -140,11 +142,13 @@ int cmd_hash_object(int argc, const char **argv, const char *prefix) for (i = 0 ; i < argc; i++) { const char *arg = argv[i]; + char *to_free = NULL; - if (0 <= prefix_length) - arg = prefix_filename(prefix, prefix_length, arg); + if (prefix) + arg = to_free = prefix_filename(prefix, arg); hash_object(arg, type, no_filters ? NULL : vpath ? vpath : arg, flags, literally); + free(to_free); } if (stdin_paths) diff --git a/builtin/help.c b/builtin/help.c index 3422e73079..49f7a07f85 100644 --- a/builtin/help.c +++ b/builtin/help.c @@ -37,8 +37,10 @@ static int show_all = 0; static int show_guides = 0; static unsigned int colopts; static enum help_format help_format = HELP_FORMAT_NONE; +static int exclude_guides; static struct option builtin_help_options[] = { OPT_BOOL('a', "all", &show_all, N_("print all available commands")), + OPT_HIDDEN_BOOL(0, "exclude-guides", &exclude_guides, N_("exclude guides")), 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"), @@ -127,7 +129,7 @@ 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); } } @@ -140,22 +142,15 @@ 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); } } @@ -164,7 +159,7 @@ 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) @@ -172,18 +167,16 @@ 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(SHELL_PATH, SHELL_PATH, "-c", shell_cmd.buf, (char *)NULL); - warning(_("failed to exec '%s': %s"), cmd, strerror(errno)); + 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) @@ -197,9 +190,8 @@ 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; @@ -295,16 +287,6 @@ static int is_git_command(const char *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) @@ -312,9 +294,9 @@ static const char *cmd_to_page(const char *git_cmd) 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) @@ -399,17 +381,10 @@ static void get_html_page_path(struct strbuf *page_path, const char *page) free(to_free); } -/* - * If open_html is not defined in a platform-specific way (see for - * example compat/mingw.h), we use the script web--browse to display - * HTML. - */ -#ifndef open_html static void open_html(const char *path) { execl_git_cmd("web--browse", "-c", "help.browser", path, (char *)NULL); } -#endif static void show_html_page(const char *git_cmd) { @@ -453,10 +428,29 @@ static void list_common_guides_help(void) putchar('\n'); } +static const char *check_git_cmd(const char* cmd) +{ + char *alias; + + if (is_git_command(cmd)) + return cmd; + + alias = alias_lookup(cmd); + if (alias) { + printf_ln(_("`git %s' is aliased to `%s'"), cmd, alias); + free(alias); + exit(0); + } + + if (exclude_guides) + return help_unknown_cmd(cmd); + + return cmd; +} + int cmd_help(int argc, const char **argv, const char *prefix) { int nongit; - char *alias; enum help_format parsed_help_format; argc = parse_options(argc, argv, prefix, builtin_help_options, @@ -496,12 +490,7 @@ int cmd_help(int argc, const char **argv, const char *prefix) 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_ln(_("`git %s' is aliased to `%s'"), argv[0], alias); - free(alias); - return 0; - } + argv[0] = check_git_cmd(argv[0]); switch (help_format) { case HELP_FORMAT_NONE: diff --git a/builtin/index-pack.c b/builtin/index-pack.c index 98bdbb5e6c..04b9dcaf0f 100644 --- a/builtin/index-pack.c +++ b/builtin/index-pack.c @@ -18,16 +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 { @@ -49,32 +47,37 @@ struct thread_local { int pack_fd; }; -/* - * 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 - #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 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_resolving_progress; static int show_stat; static int check_self_contained_and_connected; @@ -84,6 +87,7 @@ static struct progress *progress; static unsigned char input_buffer[4096]; static unsigned int input_offset, input_len; static off_t consumed_bytes; +static off_t max_input_size; static unsigned deepest_delta; static git_SHA_CTX input_ctx; static uint32_t input_crc32; @@ -191,13 +195,13 @@ static void cleanup_thread(void) #endif -static int mark_link(struct object *obj, int type, void *data) +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; @@ -215,13 +219,13 @@ static unsigned check_object(struct object *obj) if (!(obj->flags & FLAG_CHECKED)) { unsigned long size; - int type = sha1_object_info(obj->sha1, &size); + int type = sha1_object_info(obj->oid.hash, &size); if (type <= 0) die(_("did not receive expected object %s"), - sha1_to_hex(obj->sha1)); + oid_to_hex(&obj->oid)); if (type != obj->type) die(_("object %s: expected type %s, found %s"), - sha1_to_hex(obj->sha1), + oid_to_hex(&obj->oid), typename(obj->type), typename(type)); obj->flags |= FLAG_CHECKED; return 1; @@ -294,6 +298,8 @@ static void use(int bytes) if (signed_add_overflows(consumed_bytes, bytes)) die(_("pack too large for current definition of off_t")); consumed_bytes += bytes; + if (max_input_size && consumed_bytes > max_input_size) + die(_("pack exceeds maximum allowed size")); } static const char *open_pack_file(const char *pack_name) @@ -301,14 +307,15 @@ static const char *open_pack_file(const char *pack_name) if (from_stdin) { input_fd = 0; if (!pack_name) { - static char tmp_file[PATH_MAX]; - output_fd = odb_mkstemp(tmp_file, sizeof(tmp_file), + struct strbuf tmp_file = STRBUF_INIT; + output_fd = odb_mkstemp(&tmp_file, "pack/tmp_pack_XXXXXX"); - pack_name = xstrdup(tmp_file); - } else + pack_name = strbuf_detach(&tmp_file, NULL); + } 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); + if (output_fd < 0) + die_errno(_("unable to create '%s'"), pack_name); + } nothread_data.pack_fd = output_fd; } else { input_fd = open(pack_name, O_RDONLY); @@ -336,10 +343,10 @@ static void parse_pack_header(void) use(sizeof(struct pack_header)); } -static NORETURN void bad_object(unsigned long offset, const char *format, +static NORETURN void bad_object(off_t offset, const char *format, ...) __attribute__((format (printf, 2, 3))); -static NORETURN void bad_object(unsigned long offset, const char *format, ...) +static NORETURN void bad_object(off_t offset, const char *format, ...) { va_list params; char buf[1024]; @@ -347,7 +354,8 @@ 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 %"PRIuMAX": %s"), + (uintmax_t)offset, buf); } static inline struct thread_local *get_thread_data(void) @@ -427,7 +435,7 @@ 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, +static void *unpack_entry_data(off_t offset, unsigned long size, enum object_type type, unsigned char *sha1) { static char fixed_buf[8192]; @@ -439,7 +447,7 @@ static void *unpack_entry_data(unsigned long offset, unsigned long size, int hdrlen; if (!is_delta_type(type)) { - hdrlen = sprintf(hdr, "%s %lu", typename(type), size) + 1; + hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %lu", typename(type), size) + 1; git_SHA1_Init(&c); git_SHA1_Update(&c, hdr, hdrlen); } else @@ -476,7 +484,8 @@ static void *unpack_entry_data(unsigned long offset, unsigned long size, } static void *unpack_raw_entry(struct object_entry *obj, - union delta_base *delta_base, + off_t *ofs_offset, + unsigned char *ref_sha1, unsigned char *sha1) { unsigned char *p; @@ -505,11 +514,10 @@ static void *unpack_raw_entry(struct object_entry *obj, 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); @@ -523,8 +531,8 @@ static void *unpack_raw_entry(struct object_entry *obj, 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) + *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: @@ -547,13 +555,13 @@ static void *unpack_data(struct object_entry *obj, void *cb_data) { off_t from = obj[0].idx.offset + obj[0].hdr_size; - unsigned long len = obj[1].idx.offset - from; + off_t len = obj[1].idx.offset - from; unsigned char *data, *inbuf; git_zstream stream; int status; data = xmallocz(consume ? 64*1024 : obj->size); - inbuf = xmalloc((len < 64*1024) ? len : 64*1024); + inbuf = xmalloc((len < 64*1024) ? (int)len : 64*1024); memset(&stream, 0, sizeof(stream)); git_inflate_init(&stream); @@ -561,15 +569,15 @@ static void *unpack_data(struct object_entry *obj, stream.avail_out = consume ? 64*1024 : obj->size; do { - ssize_t n = (len < 64*1024) ? len : 64*1024; + ssize_t n = (len < 64*1024) ? (ssize_t)len : 64*1024; n = xpread(get_thread_data()->pack_fd, inbuf, n, from); if (n < 0) die_errno(_("cannot pread pack file")); if (!n) - die(Q_("premature end of pack file, %lu byte missing", - "premature end of pack file, %lu bytes missing", - len), - len); + die(Q_("premature end of pack file, %"PRIuMAX" byte missing", + "premature end of pack file, %"PRIuMAX" bytes missing", + (unsigned int)len), + (uintmax_t)len); from += n; len -= n; stream.next_in = inbuf; @@ -608,55 +616,110 @@ static void *get_data_from_pack(struct object_entry *obj) return unpack_data(obj, NULL, NULL); } -static int compare_delta_bases(const union delta_base *base1, - const union delta_base *base2, - enum object_type type1, - enum object_type type2) +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; @@ -684,13 +747,13 @@ static int compare_objects(const unsigned char *buf, unsigned long 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)); + oid_to_hex(&data->entry->idx.oid)); if (len < 0) die(_("unable to read %s"), - sha1_to_hex(data->entry->idx.sha1)); + oid_to_hex(&data->entry->idx.oid)); if (memcmp(buf, data->buf, len)) die(_("SHA1 COLLISION FOUND WITH %s !"), - sha1_to_hex(data->entry->idx.sha1)); + oid_to_hex(&data->entry->idx.oid)); size -= len; buf += len; } @@ -708,12 +771,12 @@ static int check_collison(struct object_entry *entry) memset(&data, 0, sizeof(data)); data.entry = entry; - data.st = open_istream(entry->idx.sha1, &type, &size, NULL); + data.st = open_istream(entry->idx.oid.hash, &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)); + oid_to_hex(&entry->idx.oid)); unpack_data(entry, compare_objects, &data); close_istream(data.st); free(data.buf); @@ -722,16 +785,18 @@ static int check_collison(struct object_entry *entry) static void sha1_object(const void *data, struct object_entry *obj_entry, unsigned long size, enum object_type type, - const unsigned char *sha1) + const struct object_id *oid) { void *new_data = NULL; - int collision_test_needed; + int collision_test_needed = 0; assert(data || obj_entry); - read_lock(); - collision_test_needed = has_sha1_file_with_flags(sha1, HAS_SHA1_QUICK); - read_unlock(); + if (startup_info->have_repository) { + read_lock(); + collision_test_needed = has_sha1_file_with_flags(oid->hash, HAS_SHA1_QUICK); + read_unlock(); + } if (collision_test_needed && !data) { read_lock(); @@ -744,29 +809,31 @@ static void sha1_object(const void *data, struct object_entry *obj_entry, enum object_type has_type; unsigned long has_size; read_lock(); - has_type = sha1_object_info(sha1, &has_size); + has_type = sha1_object_info(oid->hash, &has_size); + if (has_type < 0) + die(_("cannot read existing object info %s"), oid_to_hex(oid)); 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); + die(_("SHA1 COLLISION FOUND WITH %s !"), oid_to_hex(oid)); + has_data = read_sha1_file(oid->hash, &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"), oid_to_hex(oid)); 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 !"), oid_to_hex(oid)); free(has_data); } if (strict) { read_lock(); if (type == OBJ_BLOB) { - struct blob *blob = lookup_blob(sha1); + struct blob *blob = lookup_blob(oid); if (blob) blob->object.flags |= FLAG_CHECKED; else - die(_("invalid blob object %s"), sha1_to_hex(sha1)); + die(_("invalid blob object %s"), oid_to_hex(oid)); } else { struct object *obj; int eaten; @@ -778,15 +845,15 @@ static void sha1_object(const void *data, struct object_entry *obj_entry, * 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); + obj = parse_object_buffer(oid, type, size, buf, + &eaten); if (!obj) die(_("invalid %s"), typename(type)); if (do_fsck_object && - fsck_object(obj, buf, size, 1, - fsck_error_function)) + fsck_object(obj, buf, size, &fsck_options)) 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)); + 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; @@ -873,13 +940,15 @@ static void resolve_delta(struct object_entry *delta_obj, void *base_data, *delta_data; if (show_stat) { - delta_obj->delta_depth = base->obj->delta_depth + 1; + 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 < delta_obj->delta_depth) - deepest_delta = delta_obj->delta_depth; + 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_obj->base_object_no = base->obj - objects; delta_data = get_data_from_pack(delta_obj); base_data = get_base_data(base); result->obj = delta_obj; @@ -889,9 +958,10 @@ static void resolve_delta(struct object_entry *delta_obj, if (!result->data) 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); + typename(delta_obj->real_type), + delta_obj->idx.oid.hash); sha1_object(result->data, NULL, result->size, delta_obj->real_type, - delta_obj->idx.sha1); + &delta_obj->idx.oid); counter_lock(); nr_resolved_deltas++; counter_unlock(); @@ -902,7 +972,7 @@ static void resolve_delta(struct object_entry *delta_obj, * "want"; if so, swap in "set" and return true. Otherwise, leave it untouched * and return false. */ -static int compare_and_swap_type(enum object_type *type, +static int compare_and_swap_type(signed char *type, enum object_type want, enum object_type set) { @@ -921,16 +991,13 @@ 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) { - union delta_base base_spec; + find_ref_delta_children(base->obj->idx.oid.hash, + &base->ref_first, &base->ref_last, + OBJ_REF_DELTA); - hashcpy(base_spec.sha1, base->obj->idx.sha1); - find_delta_children(&base_spec, - &base->ref_first, &base->ref_last, OBJ_REF_DELTA); - - memset(&base_spec, 0, sizeof(base_spec)); - base_spec.offset = base->obj->idx.offset; - find_delta_children(&base_spec, - &base->ofs_first, &base->ofs_last, OBJ_OFS_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); @@ -941,7 +1008,7 @@ static struct base_data *find_unresolved_deltas_1(struct base_data *base, } if (base->ref_first <= base->ref_last) { - struct object_entry *child = objects + deltas[base->ref_first].obj_no; + struct object_entry *child = objects + ref_deltas[base->ref_first].obj_no; struct base_data *result = alloc_base_data(); if (!compare_and_swap_type(&child->real_type, OBJ_REF_DELTA, @@ -957,7 +1024,7 @@ static struct base_data *find_unresolved_deltas_1(struct base_data *base, } if (base->ofs_first <= base->ofs_last) { - struct object_entry *child = objects + deltas[base->ofs_first].obj_no; + 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); @@ -993,15 +1060,22 @@ static void find_unresolved_deltas(struct base_data *base) } } -static int compare_delta_entry(const void *a, const void *b) +static int compare_ofs_delta_entry(const void *a, const void *b) { - const struct delta_entry *delta_a = a; - const struct delta_entry *delta_b = b; + const struct ofs_delta_entry *delta_a = a; + const struct ofs_delta_entry *delta_b = b; - /* 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); + 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) @@ -1047,7 +1121,8 @@ static void *threaded_second_pass(void *data) static void parse_pack_objects(unsigned char *sha1) { int i, nr_delays = 0; - struct delta_entry *delta = deltas; + struct ofs_delta_entry *ofs_delta = ofs_deltas; + unsigned char ref_delta_sha1[20]; struct stat st; if (verbose) @@ -1056,18 +1131,26 @@ static void parse_pack_objects(unsigned char *sha1) nr_objects); for (i = 0; i < nr_objects; i++) { struct object_entry *obj = &objects[i]; - void *data = unpack_raw_entry(obj, &delta->base, obj->idx.sha1); + void *data = unpack_raw_entry(obj, &ofs_delta->offset, + ref_delta_sha1, + obj->idx.oid.hash); 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, NULL, obj->size, obj->type, obj->idx.sha1); + sha1_object(data, NULL, obj->size, obj->type, + &obj->idx.oid); free(data); display_progress(progress, i+1); } @@ -1093,7 +1176,8 @@ static void parse_pack_objects(unsigned char *sha1) if (obj->real_type != OBJ_BAD) continue; obj->real_type = obj->type; - sha1_object(NULL, obj, obj->size, obj->type, obj->idx.sha1); + sha1_object(NULL, obj, obj->size, obj->type, + &obj->idx.oid); nr_delays--; } if (nr_delays) @@ -1112,15 +1196,16 @@ static void resolve_deltas(void) { int i; - if (!nr_deltas) + 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, compare_ofs_delta_entry); + QSORT(ref_deltas, nr_ref_deltas, compare_ref_delta_entry); - if (verbose) - progress = start_progress(_("Resolving deltas"), nr_deltas); + if (verbose || show_resolving_progress) + progress = start_progress(_("Resolving deltas"), + nr_ref_deltas + nr_ofs_deltas); #ifndef NO_PTHREADS nr_dispatched = 0; @@ -1155,10 +1240,10 @@ static void resolve_deltas(void) * - 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, int nr_unresolved); +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_deltas == nr_resolved_deltas) { + if (nr_ref_deltas + nr_ofs_deltas == nr_resolved_deltas) { stop_progress(&progress); /* Flush remaining pack final 20-byte SHA1. */ flush(); @@ -1169,7 +1254,7 @@ static void conclude_pack(int fix_thin_pack, const char *curr_pack, unsigned cha struct sha1file *f; unsigned char read_sha1[20], tail_sha1[20]; struct strbuf msg = STRBUF_INIT; - int nr_unresolved = nr_deltas - nr_resolved_deltas; + 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")); @@ -1177,8 +1262,10 @@ static void conclude_pack(int fix_thin_pack, const char *curr_pack, unsigned cha memset(objects + nr_objects + 1, 0, nr_unresolved * sizeof(*objects)); f = sha1fd(output_fd, curr_pack); - fix_unresolved_deltas(f, nr_unresolved); - strbuf_addf(&msg, _("completed with %d local objects"), + 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); @@ -1191,11 +1278,11 @@ static void conclude_pack(int fix_thin_pack, const char *curr_pack, unsigned cha die(_("Unexpected tail checksum for %s " "(disk corruption?)"), curr_pack); } - if (nr_deltas != nr_resolved_deltas) + if (nr_ofs_deltas + nr_ref_deltas != nr_resolved_deltas) die(Q_("pack has %d unresolved delta", "pack has %d unresolved deltas", - nr_deltas - nr_resolved_deltas), - nr_deltas - nr_resolved_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) @@ -1248,21 +1335,21 @@ static struct object_entry *append_obj_to_pack(struct sha1file *f, obj[1].idx.offset += write_compressed(f, buf, size); obj[0].idx.crc32 = crc32_end(f); sha1flush(f); - hashcpy(obj->idx.sha1, sha1); + hashcpy(obj->idx.oid.hash, sha1); return obj; } 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 @@ -1274,29 +1361,26 @@ 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, 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 = 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); + 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, + if (check_sha1_signature(d->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, + 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); @@ -1310,7 +1394,9 @@ static void final(const char *final_pack_name, const char *curr_pack_name, unsigned char *sha1) { const char *report = "pack"; - char name[PATH_MAX]; + struct strbuf pack_name = STRBUF_INIT; + struct strbuf index_name = STRBUF_INIT; + struct strbuf keep_name_buf = STRBUF_INIT; int err; if (!from_stdin) { @@ -1326,14 +1412,13 @@ static void final(const char *final_pack_name, const char *curr_pack_name, int keep_fd, keep_msg_len = strlen(keep_msg); if (!keep_name) - keep_fd = odb_pack_keep(name, sizeof(name), sha1); - else - keep_fd = open(keep_name, O_RDWR|O_CREAT|O_EXCL, 0600); + keep_name = odb_pack_name(&keep_name_buf, sha1, "keep"); + keep_fd = odb_pack_keep(keep_name); if (keep_fd < 0) { if (errno != EEXIST) die_errno(_("cannot write keep file '%s'"), - keep_name ? keep_name : name); + keep_name); } else { if (keep_msg_len > 0) { write_or_die(keep_fd, keep_msg, keep_msg_len); @@ -1341,29 +1426,23 @@ static void final(const char *final_pack_name, const char *curr_pack_name, } if (close(keep_fd) != 0) die_errno(_("cannot close written keep file '%s'"), - keep_name ? keep_name : name); + keep_name); report = "keep"; } } if (final_pack_name != curr_pack_name) { - if (!final_pack_name) { - snprintf(name, sizeof(name), "%s/pack/pack-%s.pack", - get_object_directory(), sha1_to_hex(sha1)); - final_pack_name = name; - } - if (move_temp_to_file(curr_pack_name, final_pack_name)) + if (!final_pack_name) + final_pack_name = odb_pack_name(&pack_name, sha1, "pack"); + if (finalize_object_file(curr_pack_name, final_pack_name)) die(_("cannot store pack file")); } else if (from_stdin) chmod(final_pack_name, 0444); if (final_index_name != curr_index_name) { - if (!final_index_name) { - snprintf(name, sizeof(name), "%s/pack/pack-%s.idx", - get_object_directory(), sha1_to_hex(sha1)); - final_index_name = name; - } - if (move_temp_to_file(curr_index_name, final_index_name)) + if (!final_index_name) + final_index_name = odb_pack_name(&index_name, sha1, "idx"); + if (finalize_object_file(curr_index_name, final_index_name)) die(_("cannot store index file")); } else chmod(final_index_name, 0444); @@ -1371,10 +1450,11 @@ static void final(const char *final_pack_name, const char *curr_pack_name, if (!from_stdin) { printf("%s\n", sha1_to_hex(sha1)); } else { - char buf[48]; - int len = snprintf(buf, sizeof(buf), "%s\t%s\n", - report, sha1_to_hex(sha1)); - write_or_die(1, buf, len); + struct strbuf buf = STRBUF_INIT; + + strbuf_addf(&buf, "%s\t%s\n", report, sha1_to_hex(sha1)); + write_or_die(1, buf.buf, buf.len); + strbuf_release(&buf); /* * Let's just mimic git-unpack-objects here and write @@ -1388,6 +1468,10 @@ static void final(const char *final_pack_name, const char *curr_pack_name, input_offset += err; } } + + strbuf_release(&index_name); + strbuf_release(&pack_name); + strbuf_release(&keep_name_buf); } static int git_index_pack_config(const char *k, const char *v, void *cb) @@ -1457,8 +1541,7 @@ static void read_v2_anomalous_offsets(struct packed_git *p, opts->anomaly[opts->anomaly_nr++] = ntohl(idx2[off * 2 + 1]); } - if (1 < opts->anomaly_nr) - qsort(opts->anomaly, opts->anomaly_nr, sizeof(uint32_t), cmp_uint32); + QSORT(opts->anomaly, opts->anomaly_nr, cmp_uint32); } static void read_idx_option(struct pack_idx_option *opts, const char *pack_name) @@ -1489,7 +1572,7 @@ 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) @@ -1499,17 +1582,18 @@ 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, - sha1_to_hex(obj->idx.sha1), + oid_to_hex(&obj->idx.oid), typename(obj->real_type), obj->size, (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, + oid_to_hex(&bobj->idx.oid)); } putchar('\n'); } @@ -1530,6 +1614,18 @@ static void show_pack_info(int stat_only) } } +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; @@ -1542,11 +1638,13 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix) struct pack_idx_option opts; unsigned char pack_sha1[20]; unsigned foreign_nr = 1; /* zero is a "good" value, assume bad */ + int report_end_of_input = 0; if (argc == 2 && !strcmp(argv[1], "-h")) usage(index_pack_usage); check_replace_refs = 0; + fsck_options.walk = mark_link; reset_pack_idx_option(&opts); git_config(git_index_pack_config, &opts); @@ -1564,6 +1662,10 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix) } 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; @@ -1606,6 +1708,10 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix) input_len = sizeof(*hdr); } else if (!strcmp(arg, "-v")) { verbose = 1; + } else if (!strcmp(arg, "--show-resolving-progress")) { + show_resolving_progress = 1; + } else if (!strcmp(arg, "--report-end-of-input")) { + report_end_of_input = 1; } else if (!strcmp(arg, "-o")) { if (index_name || (i+1) >= argc) usage(index_pack_usage); @@ -1619,6 +1725,8 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix) opts.off32_limit = strtoul(c+1, &c, 0); if (*c || opts.off32_limit & 0x80000000) die(_("bad %s"), arg); + } else if (skip_prefix(arg, "--max-input-size=", &arg)) { + max_input_size = strtoumax(arg, NULL, 10); } else usage(index_pack_usage); continue; @@ -1633,24 +1741,13 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix) usage(index_pack_usage); if (fix_thin_pack && !from_stdin) die(_("--fix-thin cannot be used without --stdin")); - if (!index_name && pack_name) { - size_t len; - if (!strip_suffix(pack_name, ".pack", &len)) - die(_("packfile name '%s' does not end with '.pack'"), - pack_name); - strbuf_add(&index_name_buf, pack_name, len); - strbuf_addstr(&index_name_buf, ".idx"); - index_name = index_name_buf.buf; - } - if (keep_msg && !keep_name && pack_name) { - size_t len; - if (!strip_suffix(pack_name, ".pack", &len)) - die(_("packfile name '%s' does not end with '.pack'"), - pack_name); - strbuf_add(&keep_name_buf, pack_name, len); - strbuf_addstr(&keep_name_buf, ".idx"); - keep_name = keep_name_buf.buf; - } + if (from_stdin && !startup_info->have_repository) + die(_("--stdin requires a git repository")); + 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")); @@ -1671,19 +1768,24 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix) 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 (report_end_of_input) + write_in_full(2, "\0", 1); resolve_deltas(); conclude_pack(fix_thin_pack, curr_pack, pack_sha1); - free(deltas); + free(ofs_deltas); + free(ref_deltas); if (strict) foreign_nr = check_objects(); 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); diff --git a/builtin/init-db.c b/builtin/init-db.c index ab9f86b889..8a6acb0ec6 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" @@ -21,24 +22,12 @@ static int init_is_bare_repository = 0; 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 @@ -48,77 +37,66 @@ 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) @@ -131,47 +109,43 @@ static void copy_templates(const char *template_dir) 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); 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); + 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_common_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) @@ -196,63 +170,66 @@ static int needs_work_tree_config(const char *git_dir, const char *work_tree) return 1; } -static int create_default_files(const char *template_path) +static int create_default_files(const char *template_path, + const char *original_git_dir) { - 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); + struct strbuf err = STRBUF_INIT; /* Just look for `init.templatedir` */ git_config(git_init_db_config, NULL); - /* First copy the templates -- we might have the default + /* + * First copy the templates -- we might have the default * config file there, in which case we would want to read * from it after installing. + * + * Before reading that config, we also need to clear out any cached + * values (since we've just potentially changed what's available on + * disk). */ copy_templates(template_path); - + git_config_clear(); + reset_shared_repository(); git_config(git_default_config, NULL); - is_bare_repository_cfg = init_is_bare_repository; - /* reading existing config may have overwrote it */ + /* + * We must make sure command-line options continue to override any + * values we might have just re-read from the config. + */ + is_bare_repository_cfg = init_is_bare_repository; 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")); } /* + * We need to create a "refs" dir in any case so that older + * versions of git can tell that this is a repository. + */ + safe_create_dir(git_path("refs"), 1); + adjust_shared_perm(git_path("refs")); + + if (refs_init_db(&err)) + die("failed to set up refs db: %s", err.buf); + + /* * 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) { @@ -261,13 +238,12 @@ 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; @@ -286,16 +262,15 @@ static int create_default_files(const char *template_path) const char *work_tree = get_git_work_tree(); 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 (needs_work_tree_config(git_dir, work_tree)) + if (log_all_ref_updates == LOG_REFS_UNSET) + git_config_set("core.logallrefupdates", "true"); + if (needs_work_tree_config(original_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) && @@ -306,63 +281,40 @@ 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(path, len); + 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); - - memcpy(path, object_directory, len); + struct strbuf path = STRBUF_INIT; + size_t baselen; - 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_addstr(&path, get_object_directory()); + baselen = path.len; - free(path); -} - -int set_git_dir_init(const char *git_dir, const char *real_git_dir, - int exist_ok) -{ - if (real_git_dir) { - struct stat st; + safe_create_dir(path.buf, 1); - if (!exist_ok && !stat(git_dir, &st)) - die(_("%s already exists"), git_dir); + strbuf_setlen(&path, baselen); + strbuf_addstr(&path, "/pack"); + safe_create_dir(path.buf, 1); - if (!exist_ok && !stat(real_git_dir, &st)) - die(_("%s already exists"), real_git_dir); + strbuf_setlen(&path, baselen); + strbuf_addstr(&path, "/info"); + safe_create_dir(path.buf, 1); - /* - * make sure symlinks are resolved because we'll be - * 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 { - set_git_dir(real_path(git_dir)); - git_link = NULL; - } - return 0; + strbuf_release(&path); } -static void separate_git_dir(const char *git_dir) +static void separate_git_dir(const char *git_dir, const char *git_link) { struct stat st; - FILE *fp; if (!stat(git_link, &st)) { const char *src; @@ -378,20 +330,34 @@ 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) +int init_db(const char *git_dir, const char *real_git_dir, + const char *template_dir, unsigned int flags) { int reinit; - const char *git_dir = get_git_dir(); + int exist_ok = flags & INIT_DB_EXIST_OK; + char *original_git_dir = real_pathdup(git_dir, 1); - if (git_link) - separate_git_dir(git_dir); + if (real_git_dir) { + struct stat st; + + if (!exist_ok && !stat(git_dir, &st)) + die(_("%s already exists"), git_dir); + + if (!exist_ok && !stat(real_git_dir, &st)) + die(_("%s already exists"), real_git_dir); + + set_git_dir(real_path(real_git_dir)); + git_dir = get_git_dir(); + separate_git_dir(git_dir, original_git_dir); + } + else { + set_git_dir(real_path(git_dir)); + git_dir = get_git_dir(); + } + startup_info->have_repository = 1; safe_create_dir(git_dir, 0); @@ -404,11 +370,11 @@ int init_db(const char *template_dir, unsigned int flags) */ check_repository_format(); - reinit = create_default_files(template_dir); + reinit = create_default_files(template_dir, original_git_dir); 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 @@ -416,15 +382,15 @@ 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"); } @@ -432,15 +398,19 @@ 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. */ - printf(_("%s%s Git repository in %s%s\n"), - reinit ? _("Reinitialized existing") : _("Initialized empty"), - shared_repository ? _(" shared") : "", - git_dir, len && git_dir[len-1] != '/' ? "/" : ""); + if (reinit) + printf(get_shared_repository() + ? _("Reinitialized existing shared Git repository in %s%s\n") + : _("Reinitialized existing Git repository in %s%s\n"), + git_dir, len && git_dir[len-1] != '/' ? "/" : ""); + else + printf(get_shared_repository() + ? _("Initialized empty shared Git repository in %s%s\n") + : _("Initialized empty Git repository in %s%s\n"), + git_dir, len && git_dir[len-1] != '/' ? "/" : ""); } + free(original_git_dir); return 0; } @@ -519,7 +489,7 @@ int cmd_init_db(int argc, const char **argv, const char *prefix) argc = parse_options(argc, argv, prefix, init_db_options, init_db_usage, 0); if (real_git_dir && !is_absolute_path(real_git_dir)) - real_git_dir = xstrdup(real_path(real_git_dir)); + real_git_dir = real_pathdup(real_git_dir, 1); if (argc == 1) { int mkdir_tried = 0; @@ -532,8 +502,8 @@ 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 SCLD_OK: case SCLD_PERMS: @@ -545,7 +515,7 @@ int cmd_init_db(int argc, const char **argv, const char *prefix) 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; @@ -563,7 +533,7 @@ int cmd_init_db(int argc, const char **argv, const char *prefix) } 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 @@ -590,7 +560,7 @@ int cmd_init_db(int argc, const char **argv, const char *prefix) const char *git_dir_parent = strrchr(git_dir, '/'); if (git_dir_parent) { char *rel = xstrndup(git_dir, git_dir_parent - git_dir); - git_work_tree_cfg = xstrdup(real_path(rel)); + git_work_tree_cfg = real_pathdup(rel, 1); free(rel); } if (!git_work_tree_cfg) @@ -608,7 +578,6 @@ int cmd_init_db(int argc, const char **argv, const char *prefix) set_git_work_tree(work_tree); } - set_git_dir_init(git_dir, real_git_dir, 1); - - return init_db(template_dir, flags); + flags |= INIT_DB_EXIST_OK; + return init_db(git_dir, real_git_dir, template_dir, flags); } diff --git a/builtin/interpret-trailers.c b/builtin/interpret-trailers.c index 46838d24a9..175f14797b 100644 --- a/builtin/interpret-trailers.c +++ b/builtin/interpret-trailers.c @@ -12,16 +12,18 @@ #include "trailer.h" static const char * const git_interpret_trailers_usage[] = { - N_("git interpret-trailers [--trim-empty] [(--trailer <token>[(=|:)<value>])...] [<file>...]"), + 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 string_list trailers = STRING_LIST_INIT_NODUP; 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")), @@ -34,9 +36,12 @@ int cmd_interpret_trailers(int argc, const char **argv, const char *prefix) if (argc) { int i; for (i = 0; i < argc; i++) - process_trailers(argv[i], trim_empty, &trailers); - } else - process_trailers(NULL, trim_empty, &trailers); + 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); diff --git a/builtin/log.c b/builtin/log.c index 7b343c1aaf..a33c1a70ab 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" @@ -31,6 +32,8 @@ static const char *default_date_mode = NULL; static int default_abbrev_commit; static int default_show_root = 1; +static int default_follow; +static int default_show_signature; static int decoration_style; static int decoration_given; static int use_mailmap_config; @@ -49,6 +52,11 @@ struct line_opt_callback_data { struct string_list args; }; +static int auto_decoration_style(void) +{ + return (isatty(1) || pager_in_use()) ? DECORATE_SHORT_REFS : 0; +} + static int parse_decoration_style(const char *var, const char *value) { switch (git_config_maybe_bool(var, value)) { @@ -64,7 +72,7 @@ static int parse_decoration_style(const char *var, const char *value) 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 auto_decoration_style(); return -1; } @@ -98,10 +106,20 @@ static int log_line_range_callback(const struct option *option, const char *arg, return 0; } +static void init_log_defaults(void) +{ + init_grep_defaults(); + init_diff_ui_defaults(); + + decoration_style = auto_decoration_style(); +} + 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 */ @@ -109,10 +127,11 @@ static void cmd_log_init_defaults(struct rev_info *rev) rev->abbrev_commit = default_abbrev_commit; rev->show_root_diff = default_show_root; rev->subject_prefix = fmt_patch_subject_prefix; + rev->show_signature = default_show_signature; 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; } @@ -226,16 +245,17 @@ static void show_early_header(struct rev_info *rev, const char *stage, int nr) if (rev->commit_format != CMIT_FMT_ONELINE) putchar(rev->diffopt.line_termination); } - printf(_("Final output: %d %s\n"), nr, stage); + fprintf(rev->diffopt.file, _("Final output: %d %s\n"), nr, stage); } static struct itimerval early_output_timer; static void log_show_early(struct rev_info *revs, struct commit_list *list) { - int i = revs->early_output; + int i = revs->early_output, close_file = revs->diffopt.close_file; int show_header = 1; + revs->diffopt.close_file = 0; sort_in_topological_order(&list, revs->sort_order); while (list && i) { struct commit *commit = list->item; @@ -252,14 +272,19 @@ static void log_show_early(struct rev_info *revs, struct commit_list *list) case commit_ignore: break; case commit_error: + if (close_file) + fclose(revs->diffopt.file); return; } list = list->next; } /* Did we already get enough commits for the early output? */ - if (!i) + if (!i) { + if (close_file) + fclose(revs->diffopt.file); return; + } /* * ..if no, then repeat it twice a second until we @@ -321,7 +346,7 @@ static int cmd_log_walk(struct rev_info *rev) { struct commit *commit; int saved_nrl = 0; - int saved_dcctc = 0; + int saved_dcctc = 0, close_file = rev->diffopt.close_file; if (rev->early_output) setup_early_output(rev); @@ -337,9 +362,9 @@ static int cmd_log_walk(struct rev_info *rev) * and HAS_CHANGES being accumulated in rev->diffopt, so be careful to * retain that state information if replacing rev->diffopt in this loop */ + rev->diffopt.close_file = 0; 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. @@ -358,6 +383,8 @@ static int cmd_log_walk(struct rev_info *rev) } rev->diffopt.degraded_cc_to_c = saved_dcctc; rev->diffopt.needed_rename_limit = saved_nrl; + if (close_file) + fclose(rev->diffopt.file); if (rev->diffopt.output_format & DIFF_FORMAT_CHECKDIFF && DIFF_OPT_TST(&rev->diffopt, CHECK_FAILED)) { @@ -390,12 +417,20 @@ static int git_log_config(const char *var, const char *value, void *cb) default_show_root = git_config_bool(var, value); return 0; } + 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 (!strcmp(var, "log.showsignature")) { + default_show_signature = git_config_bool(var, value); + return 0; + } if (grep_config(var, value, cb) < 0) return -1; @@ -409,7 +444,7 @@ int cmd_whatchanged(int argc, const char **argv, const char *prefix) struct rev_info rev; struct setup_revision_opt opt; - init_grep_defaults(); + init_log_defaults(); git_config(git_log_config, NULL); init_revisions(&rev, prefix); @@ -432,44 +467,48 @@ static void show_tagger(char *buf, int len, struct rev_info *rev) pp.fmt = rev->commit_format; pp.date_mode = rev->date_mode; pp_user_info(&pp, "Tagger", &out, buf, get_log_output_encoding()); - printf("%s", out.buf); + fprintf(rev->diffopt.file, "%s", out.buf); strbuf_release(&out); } -static int show_blob_object(const unsigned char *sha1, struct rev_info *rev, const char *obj_name) +static int show_blob_object(const struct object_id *oid, struct rev_info *rev, const char *obj_name) { - unsigned char sha1c[20]; + struct object_id oidc; struct object_context obj_context; char *buf; unsigned long size; - fflush(stdout); + fflush(rev->diffopt.file); if (!DIFF_OPT_TOUCHED(&rev->diffopt, ALLOW_TEXTCONV) || !DIFF_OPT_TST(&rev->diffopt, ALLOW_TEXTCONV)) - return stream_blob_to_fd(1, sha1, NULL, 0); + return stream_blob_to_fd(1, oid, NULL, 0); - if (get_sha1_with_context(obj_name, 0, sha1c, &obj_context)) + if (get_sha1_with_context(obj_name, GET_SHA1_RECORD_PATH, + oidc.hash, &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 (!obj_context.path || + !textconv_object(obj_context.path, obj_context.mode, &oidc, 1, &buf, &size)) { + free(obj_context.path); + return stream_blob_to_fd(1, oid, NULL, 0); + } if (!buf) die(_("git show %s: bad file"), obj_name); write_or_die(1, buf, size); + free(obj_context.path); return 0; } -static int show_tag_object(const unsigned char *sha1, struct rev_info *rev) +static int show_tag_object(const struct object_id *oid, struct rev_info *rev) { unsigned long size; enum object_type type; - char *buf = read_sha1_file(sha1, &type, &size); + char *buf = read_sha1_file(oid->hash, &type, &size); int offset = 0; if (!buf) - return error(_("Could not read object %s"), sha1_to_hex(sha1)); + return error(_("Could not read object %s"), oid_to_hex(oid)); assert(type == OBJ_TAG); while (offset < size && buf[offset] != '\n') { @@ -483,7 +522,7 @@ static int show_tag_object(const unsigned char *sha1, struct rev_info *rev) } if (offset < size) - fwrite(buf + offset, size - offset, 1, stdout); + fwrite(buf + offset, size - offset, 1, rev->diffopt.file); free(buf); return 0; } @@ -492,11 +531,13 @@ static int show_tree_object(const unsigned char *sha1, struct strbuf *base, const char *pathname, unsigned mode, int stage, void *context) { - printf("%s%s\n", pathname, S_ISDIR(mode) ? "/" : ""); + FILE *file = context; + fprintf(file, "%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 */ @@ -519,7 +560,7 @@ int cmd_show(int argc, const char **argv, const char *prefix) struct pathspec match_all; int i, count, ret = 0; - init_grep_defaults(); + init_log_defaults(); git_config(git_log_config, NULL); memset(&match_all, 0, sizeof(match_all)); @@ -531,7 +572,7 @@ int cmd_show(int argc, const char **argv, const char *prefix) 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) @@ -544,25 +585,25 @@ 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_blob_object(o->sha1, &rev, name); + ret = show_blob_object(&o->oid, &rev, name); break; case OBJ_TAG: { struct tag *t = (struct tag *)o; if (rev.shown_one) putchar('\n'); - printf("%stag %s%s\n", + fprintf(rev.diffopt.file, "%stag %s%s\n", diff_get_color_opt(&rev.diffopt, DIFF_COMMIT), t->tag, diff_get_color_opt(&rev.diffopt, DIFF_RESET)); - ret = show_tag_object(o->sha1, &rev); + ret = show_tag_object(&o->oid, &rev); rev.shown_one = 1; if (ret) break; - o = parse_object(t->tagged->sha1); + o = parse_object(&t->tagged->oid); 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; @@ -570,12 +611,12 @@ int cmd_show(int argc, const char **argv, const char *prefix) case OBJ_TREE: if (rev.shown_one) putchar('\n'); - printf("%stree %s%s\n\n", + fprintf(rev.diffopt.file, "%stree %s%s\n\n", diff_get_color_opt(&rev.diffopt, DIFF_COMMIT), name, diff_get_color_opt(&rev.diffopt, DIFF_RESET)); read_tree_recursive((struct tree *)o, "", 0, 0, &match_all, - show_tree_object, NULL); + show_tree_object, rev.diffopt.file); rev.shown_one = 1; break; case OBJ_COMMIT: @@ -600,7 +641,7 @@ int cmd_log_reflog(int argc, const char **argv, const char *prefix) struct rev_info rev; struct setup_revision_opt opt; - init_grep_defaults(); + init_log_defaults(); git_config(git_log_config, NULL); init_revisions(&rev, prefix); @@ -618,12 +659,28 @@ 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_grep_defaults(); + init_log_defaults(); git_config(git_log_config, NULL); init_revisions(&rev, prefix); @@ -631,6 +688,7 @@ int cmd_log(int argc, const char **argv, const char *prefix) 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); } @@ -643,9 +701,9 @@ static int auto_number = 1; static char *default_attach = NULL; -static struct string_list extra_hdr; -static struct string_list extra_to; -static struct string_list extra_cc; +static struct string_list extra_hdr = STRING_LIST_INIT_NODUP; +static struct string_list extra_to = STRING_LIST_INIT_NODUP; +static struct string_list extra_cc = STRING_LIST_INIT_NODUP; static void add_header(const char *value) { @@ -671,9 +729,12 @@ static void add_header(const char *value) #define THREAD_DEEP 2 static int thread; static int do_signoff; +static int base_auto; +static char *from; 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, @@ -752,15 +813,31 @@ static int git_format_config(const char *var, const char *value, void *cb) 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; + } + if (!strcmp(var, "format.from")) { + int b = git_config_maybe_bool(var, value); + free(from); + if (b < 0) + from = xstrdup(value); + else if (b) + from = xstrdup(git_committer_info(IDENT_NO_DATE)); + else + from = NULL; + return 0; + } return git_log_config(var, value, cb); } -static FILE *realstdout = NULL; static const char *output_directory = NULL; static int outdir_offset; -static int reopen_stdout(struct commit *commit, const char *subject, +static int open_next_file(struct commit *commit, const char *subject, struct rev_info *rev, int quiet) { struct strbuf filename = STRBUF_INIT; @@ -769,10 +846,11 @@ static int reopen_stdout(struct commit *commit, const char *subject, if (output_directory) { strbuf_addstr(&filename, output_directory); if (filename.len >= - PATH_MAX - FORMAT_PATCH_NAME_MAX - suffix_len) + PATH_MAX - FORMAT_PATCH_NAME_MAX - suffix_len) { + strbuf_release(&filename); return error(_("name of output directory is too long")); - if (filename.buf[filename.len - 1] != '/') - strbuf_addch(&filename, '/'); + } + strbuf_complete(&filename, '/'); } if (rev->numbered_files) @@ -783,10 +861,13 @@ static int reopen_stdout(struct commit *commit, const char *subject, fmt_output_subject(&filename, subject, rev); if (!quiet) - fprintf(realstdout, "%s\n", filename.buf + outdir_offset); + printf("%s\n", filename.buf + outdir_offset); - if (freopen(filename.buf, "w", stdout) == NULL) - return error(_("Cannot open patch file %s"), filename.buf); + if ((rev->diffopt.file = fopen(filename.buf, "w")) == NULL) { + error_errno(_("Cannot open patch file %s"), filename.buf); + strbuf_release(&filename); + return -1; + } strbuf_release(&filename); return 0; @@ -806,8 +887,8 @@ static void get_patch_ids(struct rev_info *rev, struct patch_ids *ids) o2 = rev->pending.objects[1].item; flags1 = o1->flags; flags2 = o2->flags; - c1 = lookup_commit_reference(o1->sha1); - c2 = lookup_commit_reference(o2->sha1); + c1 = lookup_commit_reference(&o1->oid); + c2 = lookup_commit_reference(&o2->oid); if ((flags1 & UNINTERESTING) == (flags2 & UNINTERESTING)) die(_("Not a range.")); @@ -838,21 +919,21 @@ static void get_patch_ids(struct rev_info *rev, struct patch_ids *ids) static void gen_message_id(struct rev_info *info, char *base) { struct strbuf buf = STRBUF_INIT; - strbuf_addf(&buf, "%s.%lu.git.%s", base, - (unsigned long) time(NULL), + strbuf_addf(&buf, "%s.%"PRItime".git.%s", base, + (timestamp_t) time(NULL), git_committer_info(IDENT_NO_NAME|IDENT_NO_DATE|IDENT_STRICT)); info->message_id = strbuf_detach(&buf, NULL); } -static void print_signature(void) +static void print_signature(FILE *file) { if (!signature || !*signature) return; - printf("-- \n%s", signature); + fprintf(file, "-- \n%s", signature); if (signature[strlen(signature)-1] != '\n') - putchar('\n'); - putchar('\n'); + putc('\n', file); + putc('\n', file); } static void add_branch_description(struct strbuf *buf, const char *branch_name) @@ -872,8 +953,8 @@ static void add_branch_description(struct strbuf *buf, const char *branch_name) static char *find_branch_name(struct rev_info *rev) { int i, positive = -1; - unsigned char branch_sha1[20]; - const unsigned char *tip_sha1; + struct object_id branch_oid; + const struct object_id *tip_oid; const char *ref, *v; char *full_ref, *branch = NULL; @@ -888,10 +969,10 @@ static char *find_branch_name(struct rev_info *rev) if (positive < 0) return NULL; ref = rev->cmdline.rev[positive].name; - tip_sha1 = rev->cmdline.rev[positive].item->sha1; - if (dwim_ref(ref, strlen(ref), branch_sha1, &full_ref) && + 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) && - !hashcmp(tip_sha1, branch_sha1)) + !oidcmp(tip_oid, &branch_oid)) branch = xstrdup(v); free(full_ref); return branch; @@ -915,17 +996,16 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout, struct pretty_print_context pp = {0}; struct commit *head = list[0]; - if (rev->commit_format != CMIT_FMT_EMAIL) + if (!cmit_fmt_is_mail(rev->commit_format)) die(_("Cover letter needs email format")); committer = git_committer_info(0); if (!use_stdout && - reopen_stdout(NULL, rev->numbered_files ? NULL : "cover-letter", rev, quiet)) + open_next_file(NULL, rev->numbered_files ? NULL : "cover-letter", rev, quiet)) return; - log_write_email_headers(rev, head, &pp.subject, &pp.after_subject, - &need_8bit_cte); + log_write_email_headers(rev, head, &pp.after_subject, &need_8bit_cte); for (i = 0; !need_8bit_cte && i < nr; i++) { const char *buf = get_commit_buffer(list[i], NULL); @@ -939,12 +1019,14 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout, msg = body; pp.fmt = CMIT_FMT_EMAIL; - pp.date_mode = DATE_RFC2822; + pp.date_mode.type = DATE_RFC2822; + pp.rev = rev; + pp.print_email_subject = 1; pp_user_info(&pp, NULL, &sb, committer, encoding); pp_title_line(&pp, &msg, &sb, encoding, need_8bit_cte); pp_remainder(&pp, &msg, &sb, 0); add_branch_description(&sb, branch_name); - printf("%s\n", sb.buf); + fprintf(rev->diffopt.file, "%s\n", sb.buf); strbuf_release(&sb); @@ -953,6 +1035,7 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout, log.wrap = 72; log.in1 = 2; log.in2 = 4; + log.file = rev->diffopt.file; for (i = 0; i < nr; i++) shortlog_add_commit(&log, list[i]); @@ -969,14 +1052,13 @@ 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); - printf("\n"); - print_signature(); + fprintf(rev->diffopt.file, "\n"); } static const char *clean_message_id(const char *msg_id) @@ -1018,8 +1100,7 @@ static const char *set_outdir(const char *prefix, const char *output_directory) if (!output_directory) return prefix; - return xstrdup(prefix_filename(prefix, outdir_offset, - output_directory)); + return prefix_filename(prefix, output_directory); } static const char * const builtin_format_patch_usage[] = { @@ -1046,6 +1127,11 @@ static int subject_prefix_callback(const struct option *opt, const char *arg, return 0; } +static int rfc_callback(const struct option *opt, const char *arg, int unset) +{ + return subject_prefix_callback(opt, "RFC PATCH", unset); +} + static int numbered_cmdline_opt = 0; static int numbered_callback(const struct option *opt, const char *arg, @@ -1158,6 +1244,155 @@ static int from_callback(const struct option *opt, const char *arg, int unset) 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; + struct object_id oid; + + if (get_oid(upstream, &oid)) + die(_("Failed to resolve '%s' as a valid ref."), upstream); + commit = lookup_commit_or_die(&oid, "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) { + struct object_id oid; + struct object_id *patch_id; + if (commit->util) + continue; + if (commit_patch_id(commit, &diffopt, oid.hash, 0)) + 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; + oidcpy(patch_id, &oid); + bases->nr_patch_id++; + } +} + +static void print_bases(struct base_tree_info *bases, FILE *file) +{ + 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 */ + fprintf(file, "\nbase-commit: %s\n", oid_to_hex(&bases->base_commit)); + + /* Show the prerequisite patches */ + for (i = bases->nr_patch_id - 1; i >= 0; i--) + fprintf(file, "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) { struct commit *commit; @@ -1172,6 +1407,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) int cover_letter = -1; int boundary_count = 0; int no_binary_diff = 0; + int zero_commit = 0; struct commit *origin = NULL; const char *in_reply_to = NULL; struct patch_ids ids; @@ -1180,7 +1416,9 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) 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, N_("use [PATCH n/m] even with a single patch"), @@ -1201,6 +1439,9 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) 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, "rfc", &rev, NULL, + N_("Use [RFC PATCH] instead of [PATCH]"), + PARSE_OPT_NOARG | PARSE_OPT_NONEG, rfc_callback }, { OPTION_CALLBACK, 0, "subject-prefix", &rev, N_("prefix"), N_("Use [<prefix>] instead of [PATCH]"), PARSE_OPT_NONEG, subject_prefix_callback }, @@ -1212,6 +1453,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) PARSE_OPT_NOARG | PARSE_OPT_NONEG, keep_callback }, 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, @@ -1241,6 +1484,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) PARSE_OPT_OPTARG, thread_callback }, 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")), @@ -1250,10 +1495,11 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) extra_hdr.strdup_strings = 1; extra_to.strdup_strings = 1; extra_cc.strdup_strings = 1; - init_grep_defaults(); + 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; @@ -1334,7 +1580,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) if (numbered && keep_subject) die (_("-n and -k are mutually exclusive.")); if (keep_subject && subject_prefix) - die (_("--subject-prefix and -k are mutually exclusive.")); + die (_("--subject-prefix/--rfc and -k are mutually exclusive.")); rev.preserve_subject = keep_subject; argc = setup_revisions(argc, argv, &rev, &s_r_opt); @@ -1356,18 +1602,25 @@ 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 setup_pager(); if (output_directory) { + if (rev.diffopt.use_color != GIT_COLOR_ALWAYS) + rev.diffopt.use_color = GIT_COLOR_NEVER; if (use_stdout) die(_("standard output, or directory, which one?")); if (mkdir(output_directory, 0777) < 0 && errno != EEXIST) @@ -1398,10 +1651,10 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) check_head = 1; if (check_head) { - unsigned char sha1[20]; + struct object_id oid; const char *ref, *v; ref = resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, - sha1, NULL); + oid.hash, NULL); if (ref && skip_prefix(ref, "refs/heads/", &v)) branch_name = xstrdup(v); else @@ -1419,15 +1672,12 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) /* 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); } - if (!use_stdout) - realstdout = xfdopen(xdup(1), "w"); - if (prepare_revision_walk(&rev)) die(_("revision walk setup failed")); rev.boundary = 1; @@ -1438,8 +1688,7 @@ 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++; @@ -1450,16 +1699,16 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) /* 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 (!keep_subject && auto_number && (total > 1 || cover_letter)) + numbered = 1; + if (numbered) + rev.total = total + start_number - 1; if (!signature) { ; /* --no-signature inhibits all signatures */ @@ -1473,6 +1722,13 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) 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) { @@ -1486,6 +1742,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) gen_message_id(&rev, "cover"); make_cover_letter(&rev, use_stdout, origin, nr, list, branch_name, quiet); + print_bases(&bases, rev.diffopt.file); + print_signature(rev.diffopt.file); total++; start_number--; } @@ -1527,11 +1785,11 @@ 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(rev.numbered_files ? NULL : commit, NULL, &rev, quiet)) + open_next_file(rev.numbered_files ? NULL : commit, NULL, &rev, quiet)) die(_("Failed to create output files")); shown = log_tree_commit(&rev, commit); free_commit_buffer(commit); @@ -1545,15 +1803,16 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) if (!use_stdout) rev.shown_one = 0; if (shown) { + print_bases(&bases, rev.diffopt.file); if (rev.mime_boundary) - printf("\n--%s%s--\n\n\n", + fprintf(rev.diffopt.file, "\n--%s%s--\n\n\n", mime_boundary_leader, rev.mime_boundary); else - print_signature(); + print_signature(rev.diffopt.file); } if (!use_stdout) - fclose(stdout); + fclose(rev.diffopt.file); } free(list); free(branch_name); @@ -1567,9 +1826,9 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) static int add_pending_commit(const char *arg, struct rev_info *revs, int flags) { - unsigned char sha1[20]; - if (get_sha1(arg, sha1) == 0) { - struct commit *commit = lookup_commit_reference(sha1); + struct object_id oid; + if (get_oid(arg, &oid) == 0) { + struct commit *commit = lookup_commit_reference(&oid); if (commit) { commit->object.flags |= flags; add_pending_object(revs, &commit->object, arg); @@ -1585,16 +1844,16 @@ static const char * const cherry_usage[] = { }; static void print_commit(char sign, struct commit *commit, int verbose, - int abbrev) + int abbrev, FILE *file) { if (!verbose) { - printf("%c %s\n", sign, - find_unique_abbrev(commit->object.sha1, abbrev)); + fprintf(file, "%c %s\n", sign, + 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), + fprintf(file, "%c %s %s\n", sign, + find_unique_abbrev(commit->object.oid.hash, abbrev), buf.buf); strbuf_release(&buf); } @@ -1632,16 +1891,13 @@ 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); @@ -1655,7 +1911,7 @@ 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; } @@ -1677,7 +1933,7 @@ int cmd_cherry(int argc, const char **argv, const char *prefix) commit = list->item; if (has_commit_patch_id(commit, &ids)) sign = '-'; - print_commit(sign, commit, verbose, abbrev); + print_commit(sign, commit, verbose, abbrev, revs.diffopt.file); list = list->next; } diff --git a/builtin/ls-files.c b/builtin/ls-files.c index 6fa2205734..b376afc312 100644 --- a/builtin/ls-files.c +++ b/builtin/ls-files.c @@ -14,6 +14,8 @@ #include "resolve-undo.h" #include "string-list.h" #include "pathspec.h" +#include "run-command.h" +#include "submodule.h" static int abbrev; static int show_deleted; @@ -27,8 +29,12 @@ static int show_killed; static int show_valid_bit; static int line_terminator = '\n'; static int debug_mode; +static int show_eol; +static int recurse_submodules; +static struct argv_array submodule_options = ARGV_ARRAY_INIT; static const char *prefix; +static const char *super_prefix; static int max_prefix_len; static int prefix_len; static struct pathspec pathspec; @@ -47,27 +53,58 @@ static const char *tag_modified = ""; static const char *tag_skip_worktree = ""; static const char *tag_resolve_undo = ""; +static void write_eolinfo(const struct cache_entry *ce, const char *path) +{ + 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) { /* + * Prepend the super_prefix to name to construct the full_name to be + * written. + */ + struct strbuf full_name = STRBUF_INIT; + if (super_prefix) { + strbuf_addstr(&full_name, super_prefix); + strbuf_addstr(&full_name, name); + name = full_name.buf; + } + + /* * 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); + + strbuf_release(&full_name); } static void show_dir_entry(const char *tag, struct dir_entry *ent) { int len = max_prefix_len; - if (len >= ent->len) + if (len > ent->len) die("git ls-files: internal error - directory entry not superset of prefix"); if (!dir_path_match(ent, &pathspec, len, ps_matched)) return; fputs(tag, stdout); + write_eolinfo(NULL, ent->name); write_name(ent->name); } @@ -99,7 +136,8 @@ static void show_killed_files(struct dir_struct *dir) */ pos = cache_name_pos(ent->name, ent->len); if (0 <= pos) - die("bug in show-killed-files"); + die("BUG: killed-file %.*s not found", + ent->len, ent->name); pos = -pos - 1; while (pos < active_nr && ce_stage(active_cache[pos])) @@ -132,54 +170,124 @@ static void show_killed_files(struct dir_struct *dir) } } +/* + * Compile an argv_array with all of the options supported by --recurse_submodules + */ +static void compile_submodule_options(const char **argv, + const struct dir_struct *dir, + int show_tag) +{ + if (line_terminator == '\0') + argv_array_push(&submodule_options, "-z"); + if (show_tag) + argv_array_push(&submodule_options, "-t"); + if (show_valid_bit) + argv_array_push(&submodule_options, "-v"); + if (show_cached) + argv_array_push(&submodule_options, "--cached"); + if (show_eol) + argv_array_push(&submodule_options, "--eol"); + if (debug_mode) + argv_array_push(&submodule_options, "--debug"); + + /* Add Pathspecs */ + argv_array_push(&submodule_options, "--"); + for (; *argv; argv++) + argv_array_push(&submodule_options, *argv); +} + +/** + * Recursively call ls-files on a submodule + */ +static void show_gitlink(const struct cache_entry *ce) +{ + struct child_process cp = CHILD_PROCESS_INIT; + int status; + char *dir; + + prepare_submodule_repo_env(&cp.env_array); + argv_array_push(&cp.env_array, GIT_DIR_ENVIRONMENT); + + if (prefix_len) + argv_array_pushf(&cp.env_array, "%s=%s", + GIT_TOPLEVEL_PREFIX_ENVIRONMENT, + prefix); + argv_array_pushf(&cp.args, "--super-prefix=%s%s/", + super_prefix ? super_prefix : "", + ce->name); + argv_array_push(&cp.args, "ls-files"); + argv_array_push(&cp.args, "--recurse-submodules"); + + /* add supported options */ + argv_array_pushv(&cp.args, submodule_options.argv); + + cp.git_cmd = 1; + dir = mkpathdup("%s/%s", get_git_work_tree(), ce->name); + cp.dir = dir; + status = run_command(&cp); + free(dir); + if (status) + exit(status); +} + static void show_ce_entry(const char *tag, const struct cache_entry *ce) { + struct strbuf name = STRBUF_INIT; int len = max_prefix_len; + if (super_prefix) + strbuf_addstr(&name, super_prefix); + strbuf_addstr(&name, ce->name); - if (len >= ce_namelen(ce)) + 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, - S_ISDIR(ce->ce_mode) || S_ISGITLINK(ce->ce_mode))) - return; + if (recurse_submodules && S_ISGITLINK(ce->ce_mode) && + submodule_path_match(&pathspec, name.buf, ps_matched)) { + show_gitlink(ce); + } else if (match_pathspec(&pathspec, name.buf, name.len, + len, ps_matched, + S_ISDIR(ce->ce_mode) || + S_ISGITLINK(ce->ce_mode))) { + if (tag && *tag && show_valid_bit && + (ce->ce_flags & CE_VALID)) { + static char alttag[4]; + memcpy(alttag, tag, 3); + if (isalpha(tag[0])) + alttag[0] = tolower(tag[0]); + else if (tag[0] == '?') + alttag[0] = '!'; + else { + alttag[0] = 'v'; + alttag[1] = tag[0]; + alttag[2] = ' '; + alttag[3] = 0; + } + tag = alttag; + } - if (tag && *tag && show_valid_bit && - (ce->ce_flags & CE_VALID)) { - static char alttag[4]; - memcpy(alttag, tag, 3); - if (isalpha(tag[0])) - alttag[0] = tolower(tag[0]); - else if (tag[0] == '?') - alttag[0] = '!'; - else { - alttag[0] = 'v'; - alttag[1] = tag[0]; - alttag[2] = ' '; - alttag[3] = 0; + if (!show_stage) { + fputs(tag, stdout); + } else { + printf("%s%06o %s %d\t", + tag, + ce->ce_mode, + find_unique_abbrev(ce->oid.hash, abbrev), + ce_stage(ce)); + } + write_eolinfo(ce, ce->name); + write_name(ce->name); + if (debug_mode) { + 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); } - tag = alttag; } - if (!show_stage) { - fputs(tag, stdout); - } else { - printf("%s%06o %s %d\t", - tag, - ce->ce_mode, - find_unique_abbrev(ce->sha1,abbrev), - ce_stage(ce)); - } - write_name(ce->name); - if (debug_mode) { - 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); - } + strbuf_release(&name); } static void show_ru_info(void) @@ -214,7 +322,7 @@ static void show_ru_info(void) 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); + return is_excluded(dir, &the_index, ce->name, &dtype); } static void show_files(struct dir_struct *dir) @@ -225,7 +333,7 @@ static void show_files(struct dir_struct *dir) if (show_others || show_killed) { if (!show_others) dir->flags |= DIR_COLLECT_KILLED_ONLY; - fill_directory(dir, &pathspec); + fill_directory(dir, &the_index, &pathspec); if (show_others) show_other_files(dir); if (show_killed) @@ -269,28 +377,49 @@ static void show_files(struct dir_struct *dir) /* * Prune the index to only contain stuff starting with "prefix" */ -static void prune_cache(const char *prefix) +static void prune_cache(const char *prefix, size_t prefixlen) { - int pos = cache_name_pos(prefix, max_prefix_len); + int pos; unsigned int first, last; + if (!prefix) + return; + pos = cache_name_pos(prefix, prefixlen); if (pos < 0) pos = -pos-1; - memmove(active_cache, active_cache + pos, - (active_nr - pos) * sizeof(struct cache_entry *)); - active_nr -= pos; - first = 0; + first = pos; last = active_nr; while (last > first) { int next = (last + first) >> 1; const struct cache_entry *ce = active_cache[next]; - if (!strncmp(ce->name, prefix, max_prefix_len)) { + if (!strncmp(ce->name, prefix, prefixlen)) { first = next+1; continue; } last = next; } - active_nr = last; + memmove(active_cache, active_cache + pos, + (last - pos) * sizeof(struct cache_entry *)); + active_nr = last - pos; +} + +static int get_common_prefix_len(const char *common_prefix) +{ + int common_prefix_len; + + if (!common_prefix) + return 0; + + common_prefix_len = strlen(common_prefix); + + /* + * If the prefix has a trailing slash, strip it so that submodules wont + * be pruned from the index. + */ + if (common_prefix[common_prefix_len - 1] == '/') + common_prefix_len--; + + return common_prefix_len; } /* @@ -304,14 +433,14 @@ static void prune_cache(const char *prefix) void overlay_tree_on_cache(const char *tree_name, const char *prefix) { struct tree *tree; - unsigned char sha1[20]; + struct object_id oid; struct pathspec pathspec; struct cache_entry *last_stage0 = NULL; int i; - if (get_sha1(tree_name, sha1)) + if (get_oid(tree_name, &oid)) die("tree-ish %s not found.", tree_name); - tree = parse_tree_indirect(sha1); + tree = parse_tree_indirect(&oid); if (!tree) die("bad tree-ish %s", tree_name); @@ -359,14 +488,6 @@ static const char * const ls_files_usage[] = { 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) { @@ -408,9 +529,9 @@ int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix) 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, - N_("paths are separated with NUL character"), - PARSE_OPT_NOARG, option_parse_z }, + /* 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, @@ -433,6 +554,7 @@ int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix) OPT_BIT(0, "directory", &dir.flags, 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, N_("don't show empty directories"), DIR_HIDE_EMPTY_DIRECTORIES), @@ -454,6 +576,8 @@ int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix) { OPTION_SET_INT, 0, "full-name", &prefix_len, NULL, N_("make the output relative to the project top directory"), PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL }, + OPT_BOOL(0, "recurse-submodules", &recurse_submodules, + N_("recurse through submodules")), 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"), @@ -470,6 +594,7 @@ int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix) prefix = cmd_prefix; if (prefix) prefix_len = strlen(prefix); + super_prefix = get_super_prefix(); git_config(git_default_config, NULL); if (read_cache() < 0) @@ -505,18 +630,38 @@ int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix) if (require_work_tree && !is_inside_work_tree()) setup_work_tree(); + if (recurse_submodules) + compile_submodule_options(argv, &dir, show_tag); + + if (recurse_submodules && + (show_stage || show_deleted || show_others || show_unmerged || + show_killed || show_modified || show_resolve_undo || with_tree)) + die("ls-files --recurse-submodules unsupported mode"); + + if (recurse_submodules && error_unmatch) + die("ls-files --recurse-submodules does not support " + "--error-unmatch"); + parse_pathspec(&pathspec, 0, - PATHSPEC_PREFER_CWD | - PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP, + PATHSPEC_PREFER_CWD, prefix, argv); - /* Find common prefix for all pathspec's */ - max_prefix = common_prefix(&pathspec); - max_prefix_len = max_prefix ? strlen(max_prefix) : 0; + /* + * Find common prefix for all pathspec's + * This is used as a performance optimization which unfortunately cannot + * be done when recursing into submodules + */ + if (recurse_submodules) + max_prefix = NULL; + else + max_prefix = common_prefix(&pathspec); + max_prefix_len = get_common_prefix_len(max_prefix); + + prune_cache(max_prefix, max_prefix_len); /* Treat unmatching pathspec elements as errors */ if (pathspec.nr && error_unmatch) - ps_matched = xcalloc(1, pathspec.nr); + ps_matched = xcalloc(pathspec.nr, 1); if ((dir.flags & DIR_SHOW_IGNORED) && !exc_given) die("ls-files --ignored needs some exclude pattern"); @@ -526,8 +671,6 @@ int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix) show_killed || show_modified || show_resolve_undo)) show_cached = 1; - if (max_prefix) - prune_cache(max_prefix); if (with_tree) { /* * Basic sanity check; show-stages and show-unmerged diff --git a/builtin/ls-remote.c b/builtin/ls-remote.c index 4554dbc8a9..b2d7d5ce68 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] [--get-url] [<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 @@ -14,28 +17,30 @@ static const char ls_remote_usage[] = static int tail_match(const char **pattern, const char *path) { const char *p; - char pathbuf[PATH_MAX]; + char *pathbuf; if (!pattern) return 1; /* no restriction */ - if (snprintf(pathbuf, sizeof(pathbuf), "/%s", path) > sizeof(pathbuf)) - return error("insanely long ref %.*s...", 20, path); + pathbuf = xstrfmt("/%s", path); while ((p = *(pattern++)) != NULL) { - if (!wildmatch(p, pathbuf, 0, NULL)) + if (!wildmatch(p, pathbuf, 0, NULL)) { + free(pathbuf); return 1; + } } + free(pathbuf); return 0; } 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 +48,36 @@ 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 (starts_with(arg, "--upload-pack=")) { - uploadpack = arg + 14; - continue; - } - if (starts_with(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(argc - i + 1, sizeof(const char *)); - 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 +107,9 @@ 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 3b04a0f082..ee7b293b11 100644 --- a/builtin/ls-tree.c +++ b/builtin/ls-tree.c @@ -31,21 +31,18 @@ static const char * const ls_tree_usage[] = { static int show_recursive(const char *base, int baselen, const char *pathname) { - const char **s; + int i; if (ls_options & LS_RECURSIVE) return 1; - s = pathspec._raw; - if (!s) + if (!pathspec.nr) return 0; - for (;;) { - const char *spec = *s++; + for (i = 0; i < pathspec.nr; i++) { + const char *spec = pathspec.items[i].match; int len, speclen; - if (!spec) - return 0; if (strncmp(base, spec, baselen)) continue; len = strlen(pathname); @@ -59,6 +56,7 @@ static int show_recursive(const char *base, int baselen, const char *pathname) continue; return 1; } + return 0; } static int show_tree(const unsigned char *sha1, struct strbuf *base, @@ -96,12 +94,13 @@ static int show_tree(const unsigned char *sha1, struct strbuf *base, 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); @@ -120,7 +119,7 @@ static int show_tree(const unsigned char *sha1, struct strbuf *base, int cmd_ls_tree(int argc, const char **argv, const char *prefix) { - unsigned char sha1[20]; + struct object_id oid; struct tree *tree; int i, full_tree = 0; const struct option ls_tree_options[] = { @@ -165,7 +164,7 @@ int cmd_ls_tree(int argc, const char **argv, const char *prefix) if (argc < 1) usage_with_options(ls_tree_usage, ls_tree_options); - if (get_sha1(argv[0], sha1)) + if (get_oid(argv[0], &oid)) die("Not a valid object name %s", argv[0]); /* @@ -174,14 +173,14 @@ int cmd_ls_tree(int argc, const char **argv, const char *prefix) * cannot be lifted until it is converted to use * match_pathspec() or tree_entry_interesting() */ - parse_pathspec(&pathspec, PATHSPEC_GLOB | PATHSPEC_ICASE | - PATHSPEC_EXCLUDE, + parse_pathspec(&pathspec, PATHSPEC_ALL_MAGIC & + ~(PATHSPEC_FROMTOP | PATHSPEC_LITERAL), PATHSPEC_PREFER_CWD, prefix, argv + 1); for (i = 0; i < pathspec.nr; i++) pathspec.items[i].nowildcard_len = pathspec.items[i].len; pathspec.has_wildcard = 0; - tree = parse_tree_indirect(sha1); + tree = parse_tree_indirect(&oid); if (!tree) die("not a tree object"); return !!read_tree_recursive(tree, "", 0, 0, &pathspec, show_tree, NULL); diff --git a/builtin/mailinfo.c b/builtin/mailinfo.c index 999a5250fb..cfb667a594 100644 --- a/builtin/mailinfo.c +++ b/builtin/mailinfo.c @@ -6,1029 +6,7 @@ #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 char *message_id; - -static enum { - TE_DONTCARE, TE_QP, TE_BASE64 -} transfer_encoding; - -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 add_message_id; -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; - - strbuf_setlen(attr, 0); - if (!ap) - 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 (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_message_id(const struct strbuf *line) -{ - if (add_message_id) - message_id = strdup(line->buf); -} - -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 ((subject->buf[at + 1] == 'e' || - subject->buf[at + 1] == 'E') && - subject->buf[at + 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; - /* - * If the input had a space after the ], keep - * it. We don't bother with finding the end of - * the space, since we later normalize it - * anyway. - */ - if (isspace(subject->buf[at])) - at += 1; - } - 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 is_format_patch_separator(const char *line, int len) -{ - static const char SAMPLE[] = - "From e6807f3efca28b30decfecb1732a56c7db1137ee Mon Sep 17 00:00:00 2001\n"; - const char *cp; - - if (len != strlen(SAMPLE)) - return 0; - if (!skip_prefix(line, "From ", &cp)) - return 0; - if (strspn(cp, "0123456789abcdef") != 40) - return 0; - cp += 40; - return !memcmp(SAMPLE + (cp - line), cp, strlen(SAMPLE) - (cp - line)); -} - -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; - } - if (cmp_header(line, "Message-Id")) { - len = strlen("Message-Id: "); - strbuf_add(&sb, line->buf + len, line->len - len); - decode_header(&sb); - handle_message_id(&sb); - ret = 1; - goto check_header_out; - } - - /* for inbody stuff */ - if (starts_with(line->buf, ">From") && isspace(line->buf[5])) { - ret = is_format_patch_separator(line->buf + 1, line->len - 1); - goto check_header_out; - } - if (starts_with(line->buf, "[PATCH]") && isspace(line->buf[7])) { - for (i = 0; header[i]; i++) { - if (!strcmp("Subject", header[i])) { - 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 (starts_with(cp, "From ") || starts_with(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; -} - -static void convert_to_utf8(struct strbuf *line, const char *charset) -{ - char *out; - - if (!charset || !*charset) - return; - - if (same_encoding(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); - - /* 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 (starts_with(line->buf, "diff -")) - return 1; - - /* CVS "Index: " line? */ - if (starts_with(line->buf, "Index: ")) - return 1; - - /* - * "--- <filename>" starts patches without headers - * "---<sp>*" is a manual separator - */ - if (line->len < 4) - return 0; - - if (starts_with(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)) { - if (message_id) - fprintf(cmitmsg, "Message-Id: %s\n", message_id); - 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); - - /* - * 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 (!strcmp(header[i], "Subject")) { - if (!keep_subject) { - cleanup_subject(hdr); - cleanup_space(hdr); - } - output_header_lines(fout, "Subject", hdr); - } else if (!strcmp(header[i], "From")) { - 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 (!starts_with(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] [-m | --message-id] [-u | --encoding=<encoding> | -n] [--scissors | --no-scissors] <msg> <patch> < mail >info"; @@ -1036,34 +14,34 @@ static const char mailinfo_usage[] = int cmd_mailinfo(int argc, const char **argv, const char *prefix) { const char *def_charset; + struct mailinfo mi; + int status; + char *msgfile, *patchfile; - /* 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")) - add_message_id = 1; + 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; + mi.metainfo_charset = NULL; else if (starts_with(argv[1], "--encoding=")) - metainfo_charset = argv[1] + 11; + 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++; @@ -1072,5 +50,16 @@ 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; + + msgfile = prefix_filename(prefix, argv[1]); + patchfile = prefix_filename(prefix, argv[2]); + + status = !!mailinfo(&mi, msgfile, patchfile); + clear_mailinfo(&mi); + + free(msgfile); + free(patchfile); + return status; } diff --git a/builtin/mailsplit.c b/builtin/mailsplit.c index 8e02ea109a..664400b816 100644 --- a/builtin/mailsplit.c +++ b/builtin/mailsplit.c @@ -45,6 +45,19 @@ static int is_from_line(const char *line, int len) static struct strbuf buf = STRBUF_INIT; static int keep_cr; +static int mboxrd; + +static int is_gtfrom(const struct strbuf *buf) +{ + size_t min = strlen(">From "); + size_t ngt; + + if (buf->len < min) + return 0; + + ngt = strspn(buf->buf, ">"); + return ngt && starts_with(buf->buf + ngt, "From "); +} /* Called with the first line (potentially partial) * already in buf[] -- normally that should begin with @@ -77,6 +90,9 @@ static int split_one(FILE *mbox, const char *name, int allow_bare) strbuf_addch(&buf, '\n'); } + if (mboxrd && is_gtfrom(&buf)) + strbuf_remove(&buf, 0, 1); + if (fwrite(buf.buf, 1, buf.len, output) != buf.len) die_errno("cannot write output"); @@ -98,30 +114,37 @@ 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) @@ -148,8 +171,8 @@ static int maildir_filename_cmp(const char *a, const 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; @@ -160,27 +183,35 @@ static int split_maildir(const char *maildir, const char *dir, 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; } @@ -188,7 +219,6 @@ 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; @@ -196,12 +226,22 @@ 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; } do { peek = fgetc(f); + if (peek == EOF) { + if (f == stdin) + /* empty stdin is OK */ + ret = skip; + else { + fclose(f); + error(_("empty mbox: '%s'"), file); + } + goto out; + } } while (isspace(peek)); ungetc(peek, f); @@ -215,8 +255,9 @@ 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) @@ -256,6 +297,8 @@ int cmd_mailsplit(int argc, const char **argv, const char *prefix) keep_cr = 1; } else if ( arg[1] == 'o' && arg[2] ) { dir = arg+2; + } else if (!strcmp(arg, "--mboxrd")) { + mboxrd = 1; } else if ( arg[1] == '-' && !arg[2] ) { argp++; /* -- marks end of options */ break; @@ -303,7 +346,7 @@ 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 08a8217890..0c36a70ad8 100644 --- a/builtin/merge-base.c +++ b/builtin/merge-base.c @@ -16,7 +16,7 @@ static int show_merge_base(struct commit **rev, int rev_nr, int show_all) 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; @@ -36,12 +36,12 @@ static const char * const merge_base_usage[] = { static struct commit *get_commit_reference(const char *arg) { - unsigned char revkey[20]; + struct object_id revkey; struct commit *r; - if (get_sha1(arg, revkey)) + if (get_oid(arg, &revkey)) die("Not a valid object name %s", arg); - r = lookup_commit_reference(revkey); + r = lookup_commit_reference(&revkey); if (!r) die("Not a valid commit name %s", arg); @@ -62,7 +62,7 @@ static int handle_independent(int count, const char **args) return 1; while (result) { - printf("%s\n", sha1_to_hex(result->item->object.sha1)); + printf("%s\n", oid_to_hex(&result->item->object.oid)); result = result->next; } return 0; @@ -83,7 +83,7 @@ static int handle_octopus(int count, const char **args, int show_all) 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; @@ -113,14 +113,14 @@ struct rev_collect { unsigned int initial : 1; }; -static void add_one_commit(unsigned char *sha1, struct rev_collect *revs) +static void add_one_commit(struct object_id *oid, struct rev_collect *revs) { struct commit *commit; - if (is_null_sha1(sha1)) + if (is_null_oid(oid)) return; - commit = lookup_commit(sha1); + commit = lookup_commit(oid); if (!commit || (commit->object.flags & TMP_MARK) || parse_commit(commit)) @@ -131,23 +131,23 @@ static void add_one_commit(unsigned char *sha1, struct rev_collect *revs) commit->object.flags |= TMP_MARK; } -static int collect_one_reflog_ent(unsigned char *osha1, unsigned char *nsha1, - const char *ident, unsigned long timestamp, +static int collect_one_reflog_ent(struct object_id *ooid, struct object_id *noid, + const char *ident, timestamp_t 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(ooid, revs); } - add_one_commit(nsha1, revs); + add_one_commit(noid, revs); return 0; } static int handle_fork_point(int argc, const char **argv) { - unsigned char sha1[20]; + struct object_id oid; char *refname; const char *commitname; struct rev_collect revs; @@ -155,7 +155,7 @@ static int handle_fork_point(int argc, const char **argv) struct commit_list *bases; int i, ret = 0; - switch (dwim_ref(argv[0], strlen(argv[0]), sha1, &refname)) { + switch (dwim_ref(argv[0], strlen(argv[0]), oid.hash, &refname)) { case 0: die("No such ref: '%s'", argv[0]); case 1: @@ -165,14 +165,17 @@ static int handle_fork_point(int argc, const char **argv) } commitname = (argc == 2) ? argv[1] : "HEAD"; - if (get_sha1(commitname, sha1)) + if (get_oid(commitname, &oid)) die("Not a valid object name: '%s'", commitname); - derived = lookup_commit_reference(sha1); + derived = lookup_commit_reference(&oid); memset(&revs, 0, sizeof(revs)); revs.initial = 1; for_each_reflog_ent(refname, collect_one_reflog_ent, &revs); + if (!revs.nr && !get_oid(refname, &oid)) + add_one_commit(&oid, &revs); + for (i = 0; i < revs.nr; i++) revs.commit[i]->object.flags &= ~TMP_MARK; @@ -196,7 +199,7 @@ static int handle_fork_point(int argc, const char **argv) goto cleanup_return; } - printf("%s\n", sha1_to_hex(bases->item->object.sha1)); + printf("%s\n", oid_to_hex(&bases->item->object.oid)); cleanup_return: free_commit_list(bases); @@ -252,7 +255,7 @@ int cmd_merge_base(int argc, const char **argv, const char *prefix) 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 50d0bc873b..47dde7c39c 100644 --- a/builtin/merge-file.c +++ b/builtin/merge-file.c @@ -28,7 +28,6 @@ int cmd_merge_file(int argc, const char **argv, const char *prefix) xmparam_t xmp = {{0}}; int ret = 0, i = 0, to_stdout = 0; int quiet = 0; - int prefixlen = 0; struct option options[] = { 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), @@ -62,19 +61,22 @@ 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", strerror(errno)); + return error_errno("failed to redirect stderr to /dev/null"); } - if (prefix) - prefixlen = strlen(prefix); - for (i = 0; i < 3; i++) { - const char *fname = prefix_filename(prefix, prefixlen, argv[i]); + char *fname; + int ret; + if (!names[i]) names[i] = argv[i]; - if (read_mmfile(mmfs + i, fname)) + + fname = prefix_filename(prefix, argv[i]); + ret = read_mmfile(mmfs + i, fname); + free(fname); + if (ret) return -1; + if (mmfs[i].size > MAX_XDIFF_SIZE || buffer_is_binary(mmfs[i].ptr, mmfs[i].size)) return error("Cannot merge binary files: %s", @@ -91,18 +93,23 @@ int cmd_merge_file(int argc, const char **argv, const char *prefix) if (ret >= 0) { const char *filename = argv[0]; - const char *fpath = prefix_filename(prefix, prefixlen, argv[0]); + char *fpath = prefix_filename(prefix, 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); + free(fpath); } + if (ret > 127) + ret = 127; + return ret; } diff --git a/builtin/merge-index.c b/builtin/merge-index.c index 1a1eafa6fd..c99443b095 100644 --- a/builtin/merge-index.c +++ b/builtin/merge-index.c @@ -9,7 +9,7 @@ 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_MAX_HEXSZ + 1]; char ownbuf[4][60]; if (pos >= active_nr) @@ -22,8 +22,8 @@ static int merge_entry(int pos, const char *path) if (strcmp(ce->name, path)) break; found++; - strcpy(hexbuf[stage], sha1_to_hex(ce->sha1)); - sprintf(ownbuf[stage], "%o", ce->ce_mode); + oid_to_hex_r(hexbuf[stage], &ce->oid); + xsnprintf(ownbuf[stage], sizeof(ownbuf[stage]), "%o", ce->ce_mode); arguments[stage] = hexbuf[stage]; arguments[stage + 4] = ownbuf[stage]; } while (++pos < active_nr); diff --git a/builtin/merge-recursive.c b/builtin/merge-recursive.c index a90f28f34d..0dd9021958 100644 --- a/builtin/merge-recursive.c +++ b/builtin/merge-recursive.c @@ -9,22 +9,22 @@ static const char builtin_merge_recursive_usage[] = static const char *better_branch_name(const char *branch) { - static char githead_env[8 + 40 + 1]; + static char githead_env[8 + GIT_SHA1_HEXSZ + 1]; char *name; - if (strlen(branch) != 40) + if (strlen(branch) != GIT_SHA1_HEXSZ) 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; } int cmd_merge_recursive(int argc, const char **argv, const char *prefix) { - const unsigned char *bases[21]; + const struct object_id *bases[21]; unsigned bases_count = 0; int i, failed; - unsigned char h1[20], h2[20]; + struct object_id h1, h2; struct merge_options o; struct commit *result; @@ -42,38 +42,41 @@ int cmd_merge_recursive(int argc, const char **argv, const char *prefix) if (!arg[2]) break; if (parse_merge_opt(&o, arg + 2)) - die("Unknown option %s", arg); + die(_("unknown option %s"), arg); continue; } if (bases_count < ARRAY_SIZE(bases)-1) { - unsigned char *sha = xmalloc(20); - if (get_sha1(argv[i], sha)) - die("Could not parse object '%s'", argv[i]); - bases[bases_count++] = sha; + struct object_id *oid = xmalloc(sizeof(struct object_id)); + if (get_oid(argv[i], oid)) + die(_("could not parse object '%s'"), argv[i]); + bases[bases_count++] = oid; } else - warning("Cannot handle more than %d bases. " - "Ignoring %s.", + warning(Q_("cannot handle more than %d base. " + "Ignoring %s.", + "cannot handle more than %d bases. " + "Ignoring %s.", + (int)ARRAY_SIZE(bases)-1), (int)ARRAY_SIZE(bases)-1, argv[i]); } if (argc - i != 3) /* "--" "<head>" "<remote>" */ - die("Not handling anything other than two heads merge."); + die(_("not handling anything other than two heads merge.")); o.branch1 = argv[++i]; o.branch2 = argv[++i]; - if (get_sha1(o.branch1, h1)) - die("Could not resolve ref '%s'", o.branch1); - if (get_sha1(o.branch2, h2)) - die("Could not resolve ref '%s'", o.branch2); + if (get_oid(o.branch1, &h1)) + die(_("could not resolve ref '%s'"), o.branch1); + if (get_oid(o.branch2, &h2)) + die(_("could not resolve ref '%s'"), o.branch2); o.branch1 = better_branch_name(o.branch1); o.branch2 = better_branch_name(o.branch2); if (o.verbosity >= 3) - printf("Merging %s with %s\n", o.branch1, o.branch2); + printf(_("Merging %s with %s\n"), o.branch1, o.branch2); - failed = merge_recursive_generic(&o, h1, h2, bases_count, bases, &result); + failed = merge_recursive_generic(&o, &h1, &h2, bases_count, bases, &result); if (failed < 0) return 128; /* die() error code */ return failed; diff --git a/builtin/merge-tree.c b/builtin/merge-tree.c index 2a4aafec6a..bad6735c76 100644 --- a/builtin/merge-tree.c +++ b/builtin/merge-tree.c @@ -60,7 +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; @@ -82,7 +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; @@ -130,7 +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); } @@ -150,31 +150,31 @@ 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->sha1 || b->sha1); + return !(a->oid || b->oid); } -static struct merge_list *create_entry(unsigned stage, unsigned mode, const unsigned char *sha1, const char *path) +static struct merge_list *create_entry(unsigned stage, unsigned mode, const struct object_id *oid, const char *path) { struct merge_list *res = xcalloc(1, sizeof(*res)); res->stage = stage; res->path = path; res->mode = mode; - res->blob = lookup_blob(sha1); + res->blob = lookup_blob(oid); return res; } 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); } @@ -188,8 +188,8 @@ static void resolve(const struct traverse_info *info, struct name_entry *ours, s return; path = traverse_path(info, result); - orig = create_entry(2, ours->mode, ours->sha1, path); - final = create_entry(0, result->mode, result->sha1, path); + orig = create_entry(2, ours->mode, ours->oid, path); + final = create_entry(0, result->mode, result->oid, path); final->link = orig; @@ -213,7 +213,7 @@ static void unresolved_directory(const struct traverse_info *info, newbase = traverse_path(info, p); -#define ENTRY_SHA1(e) (((e)->mode && S_ISDIR((e)->mode)) ? (e)->sha1 : NULL) +#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)); @@ -239,7 +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, path); link->link = entry; return link; } @@ -314,7 +314,7 @@ static int threeway_callback(int n, unsigned long mask, unsigned long dirmask, s } 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; diff --git a/builtin/merge.c b/builtin/merge.c index 3b0f8f96d4..eab03a026d 100644 --- a/builtin/merge.c +++ b/builtin/merge.c @@ -30,6 +30,7 @@ #include "fmt-merge-msg.h" #include "gpg-interface.h" #include "sequencer.h" +#include "string-list.h" #define DEFAULT_TWOHEAD (1<<0) #define DEFAULT_OCTOPUS (1<<1) @@ -43,8 +44,8 @@ struct strategy { static const char * const builtin_merge_usage[] = { N_("git merge [<options>] [<commit>...]"), - N_("git merge [<options>] <msg> HEAD <commit>"), N_("git merge --abort"), + N_("git merge --continue"), NULL }; @@ -64,6 +65,8 @@ static int option_renormalize; static int verbosity; static int allow_rerere_auto; static int abort_current_merge; +static int continue_current_merge; +static int allow_unrelated_histories; static int show_progress = -1; static int default_to_upstream = 1; static const char *sign_commit; @@ -210,7 +213,7 @@ static struct option builtin_merge_options[] = { PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, FF_ONLY }, OPT_RERERE_AUTOUPDATE(&allow_rerere_auto), OPT_BOOL(0, "verify-signatures", &verify_signatures, - N_("Verify that the named commit has a valid GPG signature")), + 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"), @@ -221,6 +224,10 @@ static struct option builtin_merge_options[] = { OPT__VERBOSITY(&verbosity), OPT_BOOL(0, "abort", &abort_current_merge, N_("abort the current in-progress merge")), + OPT_BOOL(0, "continue", &continue_current_merge, + N_("continue 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) "" }, @@ -231,12 +238,12 @@ static struct option builtin_merge_options[] = { /* 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) +static int save_state(struct object_id *stash) { int len; struct child_process cp = CHILD_PROCESS_INIT; @@ -257,7 +264,7 @@ static int save_state(unsigned char *stash) else if (!len) /* no changes */ return -1; strbuf_setlen(&buffer, buffer.len-1); - if (get_sha1(buffer.buf, stash)) + if (get_oid(buffer.buf, stash)) die(_("not a valid object: %s"), buffer.buf); return 0; } @@ -297,18 +304,18 @@ static void reset_hard(unsigned const char *sha1, int verbose) die(_("read-tree failed")); } -static void restore_state(const unsigned char *head, - const unsigned char *stash) +static void restore_state(const struct object_id *head, + const struct object_id *stash) { struct strbuf sb = STRBUF_INIT; const char *args[] = { "stash", "apply", NULL, NULL }; - if (is_null_sha1(stash)) + if (is_null_oid(stash)) return; - reset_hard(head, 1); + reset_hard(head->hash, 1); - args[2] = sha1_to_hex(stash); + args[2] = oid_to_hex(stash); /* * It is OK to ignore error here, for example when there was @@ -333,15 +340,9 @@ static void squash_message(struct commit *commit, struct commit_list *remotehead struct rev_info rev; struct strbuf out = STRBUF_INIT; struct commit_list *j; - const char *filename; - int fd; struct pretty_print_context ctx = {0}; printf(_("Squash commit -- not updating HEAD\n")); - filename = git_path("SQUASH_MSG"); - fd = open(filename, O_WRONLY | O_CREAT, 0666); - if (fd < 0) - die_errno(_("Could not write to '%s'"), filename); init_revisions(&rev, NULL); rev.ignore_merges = 1; @@ -365,22 +366,19 @@ static void squash_message(struct commit *commit, struct commit_list *remotehead 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_in_full(fd, out.buf, out.len) != out.len) - die_errno(_("Writing SQUASH_MSG")); - if (close(fd)) - die_errno(_("Finishing SQUASH_MSG")); + write_file_buf(git_path_squash_msg(), out.buf, out.len); strbuf_release(&out); } static void finish(struct commit *head_commit, struct commit_list *remoteheads, - const unsigned char *new_head, const char *msg) + const struct object_id *new_head, const char *msg) { struct strbuf reflog_message = STRBUF_INIT; - const unsigned char *head = head_commit->object.sha1; + const struct object_id *head = &head_commit->object.oid; if (!msg) strbuf_addstr(&reflog_message, getenv("GIT_REFLOG_ACTION")); @@ -398,12 +396,13 @@ static void finish(struct commit *head_commit, else { const char *argv_gc_auto[] = { "gc", "--auto", NULL }; update_ref(reflog_message.buf, "HEAD", - new_head, head, 0, + new_head->hash, head->hash, 0, 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); } } @@ -416,7 +415,7 @@ static void finish(struct commit *head_commit, DIFF_FORMAT_SUMMARY | DIFF_FORMAT_DIFFSTAT; opts.detect_rename = DIFF_DETECT_RENAME; diff_setup_done(&opts); - diff_tree_sha1(head, new_head, "", &opts); + diff_tree_sha1(head->hash, new_head->hash, "", &opts); diffcore_std(&opts); diff_flush(&opts); } @@ -431,35 +430,35 @@ static void finish(struct commit *head_commit, static void merge_name(const char *remote, struct strbuf *msg) { struct commit *remote_head; - unsigned char branch_head[20]; + struct object_id branch_head; struct strbuf buf = STRBUF_INIT; struct strbuf bname = STRBUF_INIT; const char *ptr; char *found_ref; int len, early; - strbuf_branchname(&bname, remote); + strbuf_branchname(&bname, remote, 0); remote = bname.buf; - memset(branch_head, 0, sizeof(branch_head)); + oidclr(&branch_head); remote_head = get_merge_parent(remote); if (!remote_head) die(_("'%s' does not point to a commit"), remote); - if (dwim_ref(remote, strlen(remote), branch_head, &found_ref) > 0) { + if (dwim_ref(remote, strlen(remote), branch_head.hash, &found_ref) > 0) { if (starts_with(found_ref, "refs/heads/")) { strbuf_addf(msg, "%s\t\tbranch '%s' of .\n", - sha1_to_hex(branch_head), remote); + oid_to_hex(&branch_head), remote); goto cleanup; } if (starts_with(found_ref, "refs/tags/")) { strbuf_addf(msg, "%s\t\ttag '%s' of .\n", - sha1_to_hex(branch_head), remote); + oid_to_hex(&branch_head), remote); goto cleanup; } if (starts_with(found_ref, "refs/remotes/")) { strbuf_addf(msg, "%s\t\tremote-tracking branch '%s' of .\n", - sha1_to_hex(branch_head), remote); + oid_to_hex(&branch_head), remote); goto cleanup; } } @@ -492,40 +491,18 @@ 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), + oid_to_hex(&remote_head->object.oid), truname.buf + 11, (early ? " (early part)" : "")); strbuf_release(&truname); goto cleanup; } - } - - 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; + strbuf_release(&truname); } if (remote_head->util) { @@ -533,7 +510,7 @@ static void merge_name(const char *remote, struct strbuf *msg) 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->sha1), + oid_to_hex(&desc->obj->oid), typename(desc->obj->type), remote); goto cleanup; @@ -541,7 +518,7 @@ static void merge_name(const char *remote, struct strbuf *msg) } strbuf_addf(msg, "%s\t\tcommit '%s'\n", - sha1_to_hex(remote_head->object.sha1), remote); + oid_to_hex(&remote_head->object.oid), remote); cleanup: strbuf_release(&buf); strbuf_release(&bname); @@ -612,8 +589,8 @@ static int git_merge_config(const char *k, const char *v, void *cb) return git_diff_ui_config(k, v, cb); } -static int read_tree_trivial(unsigned char *common, unsigned char *head, - unsigned char *one) +static int read_tree_trivial(struct object_id *common, struct object_id *head, + struct object_id *one) { int i, nr_trees = 0; struct tree *trees[MAX_UNPACK_TREES]; @@ -648,19 +625,20 @@ static int read_tree_trivial(unsigned char *common, unsigned char *head, return 0; } -static void write_tree_trivial(unsigned char *sha1) +static void write_tree_trivial(struct object_id *oid) { - if (write_cache_as_tree(sha1, 0, NULL)) + if (write_cache_as_tree(oid->hash, 0, NULL)) die(_("git write-tree failed to write a tree")); } static int try_merge_strategy(const char *strategy, struct commit_list *common, struct commit_list *remoteheads, - struct commit *head, const char *head_arg) + struct commit *head) { static struct lock_file lock; + const char *head_arg = "HEAD"; - hold_locked_index(&lock, 1); + hold_locked_index(&lock, LOCK_DIE_ON_ERROR); refresh_cache(REFRESH_QUIET); if (active_cache_changed && write_locked_index(&the_index, &lock, COMMIT_LOCK)) @@ -697,9 +675,11 @@ 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); - hold_locked_index(&lock, 1); + hold_locked_index(&lock, LOCK_DIE_ON_ERROR); clean = merge_recursive(&o, head, remoteheads->item, reversed, &result); + if (clean < 0) + exit(128); if (active_cache_changed && write_locked_index(&the_index, &lock, COMMIT_LOCK)) die (_("unable to write %s"), get_index_file()); @@ -730,42 +710,17 @@ static int count_unmerged_entries(void) return ret; } -static void split_merge_strategies(const char *string, struct strategy **list, - int *nr, int *alloc) -{ - char *p, *q, *buf; - - if (!string) - return; - - buf = xstrdup(string); - q = buf; - for (;;) { - p = strchr(q, ' '); - if (!p) { - ALLOC_GROW(*list, *nr + 1, *alloc); - (*list)[(*nr)++].name = xstrdup(q); - free(buf); - return; - } else { - *p = '\0'; - ALLOC_GROW(*list, *nr + 1, *alloc); - (*list)[(*nr)++].name = xstrdup(q); - q = ++p; - } - } -} - static void add_strategies(const char *string, unsigned attr) { - struct strategy *list = NULL; - int list_alloc = 0, list_nr = 0, i; - - memset(&list, 0, sizeof(list)); - split_merge_strategies(string, &list, &list_nr, &list_alloc); - if (list) { - for (i = 0; i < list_nr; i++) - append_strategy(get_strategy(list[i].name)); + int i; + + if (string) { + struct string_list list = STRING_LIST_INIT_DUP; + struct string_list_item *item; + string_list_split(&list, string, ' ', -1); + for_each_string_list_item(item, &list) + append_strategy(get_strategy(item->string)); + string_list_clear(&list, 0); return; } for (i = 0; i < ARRAY_SIZE(all_strategy); i++) @@ -774,21 +729,9 @@ static void add_strategies(const char *string, unsigned attr) } -static void write_merge_msg(struct strbuf *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"), - filename); - if (write_in_full(fd, msg->buf, msg->len) != msg->len) - die_errno(_("Could not write to '%s'"), filename); - close(fd); -} - 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); @@ -819,16 +762,16 @@ static void prepare_to_commit(struct commit_list *remoteheads) strbuf_addch(&msg, '\n'); if (0 < option_edit) strbuf_commented_addf(&msg, _(merge_editor_comment), comment_line_char); - write_merge_msg(&msg); + write_file_buf(git_path_merge_msg(), msg.buf, msg.len); if (run_commit_hook(0 < option_edit, get_index_file(), "prepare-commit-msg", - git_path("MERGE_MSG"), "merge", NULL)) + git_path_merge_msg(), "merge", NULL)) abort_commit(remoteheads, NULL); if (0 < option_edit) { - if (launch_editor(git_path("MERGE_MSG"), NULL, NULL)) + if (launch_editor(git_path_merge_msg(), NULL, NULL)) abort_commit(remoteheads, NULL); } read_merge_msg(&msg); - stripspace(&msg, 0 < option_edit); + strbuf_stripspace(&msg, 0 < option_edit); if (!msg.len) abort_commit(remoteheads, _("Empty commit message.")); strbuf_release(&merge_msg); @@ -838,18 +781,26 @@ static void prepare_to_commit(struct commit_list *remoteheads) static int merge_trivial(struct commit *head, struct commit_list *remoteheads) { - unsigned char result_tree[20], result_commit[20]; + struct object_id result_tree, result_commit; struct commit_list *parents, **pptr = &parents; + static struct lock_file lock; - write_tree_trivial(result_tree); + hold_locked_index(&lock, LOCK_DIE_ON_ERROR); + 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")); 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)) + if (commit_tree(merge_msg.buf, merge_msg.len, result_tree.hash, parents, + result_commit.hash, NULL, sign_commit)) die(_("failed to write commit object")); - finish(head, remoteheads, result_commit, "In-index merge"); + finish(head, remoteheads, &result_commit, "In-index merge"); drop_save(); return 0; } @@ -858,12 +809,12 @@ static int finish_automerge(struct commit *head, int head_subsumed, struct commit_list *common, struct commit_list *remoteheads, - unsigned char *result_tree, + struct object_id *result_tree, const char *wt_strategy) { struct commit_list *parents = NULL; struct strbuf buf = STRBUF_INIT; - unsigned char result_commit[20]; + struct object_id result_commit; free_commit_list(common); parents = remoteheads; @@ -871,11 +822,11 @@ static int finish_automerge(struct commit *head, commit_list_insert(head, &parents); strbuf_addch(&merge_msg, '\n'); prepare_to_commit(remoteheads); - if (commit_tree(merge_msg.buf, merge_msg.len, result_tree, parents, - result_commit, NULL, sign_commit)) + if (commit_tree(merge_msg.buf, merge_msg.len, result_tree->hash, parents, + result_commit.hash, NULL, sign_commit)) die(_("failed to write commit object")); strbuf_addf(&buf, "Merge made by the '%s' strategy.", wt_strategy); - finish(head, remoteheads, result_commit, buf.buf); + finish(head, remoteheads, &result_commit, buf.buf); strbuf_release(&buf); drop_save(); return 0; @@ -887,10 +838,8 @@ static int suggest_conflicts(void) FILE *fp; struct strbuf msgbuf = STRBUF_INIT; - filename = git_path("MERGE_MSG"); - fp = fopen(filename, "a"); - if (!fp) - die_errno(_("Could not open '%s' for writing"), filename); + filename = git_path_merge_msg(); + fp = xfopen(filename, "a"); append_conflicts_hint(&msgbuf); fputs(msgbuf.buf, fp); @@ -902,24 +851,6 @@ static int suggest_conflicts(void) return 1; } -static struct commit *is_old_style_invocation(int argc, const char **argv, - const unsigned char *head) -{ - struct commit *second_token = NULL; - if (argc > 2) { - unsigned char second_sha1[20]; - - if (get_sha1(argv[1], second_sha1)) - return NULL; - 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)) - return NULL; - } - return second_token; -} - static int evaluate_result(void) { int cnt = 0; @@ -955,12 +886,12 @@ 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"), @@ -974,41 +905,27 @@ static int setup_with_upstream(const char ***argv) static void write_merge_state(struct commit_list *remoteheads) { - const char *filename; - int fd; struct commit_list *j; 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"); - 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) - die_errno(_("Could not write to '%s'"), filename); - close(fd); + write_file_buf(git_path_merge_head(), buf.buf, buf.len); strbuf_addch(&merge_msg, '\n'); - write_merge_msg(&merge_msg); + write_file_buf(git_path_merge_msg(), merge_msg.buf, merge_msg.len); - 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 (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); + strbuf_addstr(&buf, "no-ff"); + write_file_buf(git_path_merge_mode(), buf.buf, buf.len); } static int default_edit_option(void) @@ -1024,7 +941,7 @@ static int default_edit_option(void) if (e) { int v = git_config_maybe_bool(name, e); if (v < 0) - die("Bad value '%s' in environment '%s'", e, name); + die(_("Bad value '%s' in environment '%s'"), e, name); return v; } @@ -1037,55 +954,159 @@ static int default_edit_option(void) 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) { + struct object_id oid; + 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 < GIT_SHA1_HEXSZ + 2 || + get_oid_hex(merge_names->buf + pos, &oid)) + commit = NULL; /* bad */ + else if (memcmp(merge_names->buf + pos + GIT_SHA1_HEXSZ, "\t\t", 2)) + continue; /* not-for-merge */ + else { + char saved = merge_names->buf[pos + GIT_SHA1_HEXSZ]; + merge_names->buf[pos + GIT_SHA1_HEXSZ] = '\0'; + commit = get_merge_parent(merge_names->buf + pos); + merge_names->buf[pos + GIT_SHA1_HEXSZ] = 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) + int argc, const char **argv, + struct strbuf *merge_msg) { int i; - struct commit_list *remoteheads = NULL, *parents, *next; + 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; - 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; - } - *remotes = NULL; - parents = reduce_heads(remoteheads); - - *head_subsumed = 1; /* we will flip this to 0 when we find it */ - for (remoteheads = NULL, remotes = &remoteheads; - parents; - parents = next) { - struct commit *commit = parents->item; - next = parents->next; - if (commit == head_commit) - *head_subsumed = 0; - else + 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]; - unsigned char stash[20]; - unsigned char head_sha1[20]; + struct object_id result_tree, stash, head_oid; struct commit *head_commit; struct strbuf buf = STRBUF_INIT; - const char *head_arg; - int flag, i, ret = 0, head_subsumed; + 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 *remoteheads, *p; void *branch_to_free; + int orig_argc = argc; if (argc == 2 && !strcmp(argv[1], "-h")) usage_with_options(builtin_merge_usage, builtin_merge_options); @@ -1094,14 +1115,15 @@ 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", 0, head_sha1, &flag); + branch = branch_to_free = resolve_refdup("HEAD", 0, head_oid.hash, NULL); if (branch && starts_with(branch, "refs/heads/")) branch += 11; - if (!branch || is_null_sha1(head_sha1)) + if (!branch || is_null_oid(&head_oid)) head_commit = NULL; else - head_commit = lookup_commit_or_die(head_sha1, "HEAD"); + head_commit = lookup_commit_or_die(&head_oid, "HEAD"); + init_diff_ui_defaults(); git_config(git_merge_config, NULL); if (branch_mergeoptions) @@ -1118,7 +1140,11 @@ 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 (orig_argc != 2) + usage_msg_opt(_("--abort expects no arguments"), + builtin_merge_usage, builtin_merge_options); + + if (!file_exists(git_path_merge_head())) die(_("There is no merge to abort (MERGE_HEAD missing).")); /* Invoke 'git reset --merge' */ @@ -1126,10 +1152,26 @@ int cmd_merge(int argc, const char **argv, const char *prefix) goto done; } + if (continue_current_merge) { + int nargc = 1; + const char *nargv[] = {"commit", NULL}; + + if (orig_argc != 2) + usage_msg_opt(_("--continue expects no arguments"), + builtin_merge_usage, builtin_merge_options); + + if (!file_exists(git_path_merge_head())) + die(_("There is no merge in progress (MERGE_HEAD missing).")); + + /* Invoke 'git commit' */ + ret = cmd_commit(nargc, nargv, prefix); + goto done; + } + 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'. @@ -1140,7 +1182,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix) 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 merge.")); @@ -1158,86 +1200,52 @@ int cmd_merge(int argc, const char **argv, const char *prefix) option_commit = 0; } - 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 - * 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 && 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; - remoteheads = collect_parents(head_commit, &head_subsumed, argc, argv); - } 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")); + struct object_id *remote_head_oid; if (squash) die(_("Squash commit into empty head not supported yet")); if (fast_forward == FF_NO) die(_("Non-fast-forward commit does not make sense into " "an empty head")); - remoteheads = collect_parents(head_commit, &head_subsumed, argc, argv); - remote_head = remoteheads->item; - 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, + if (remoteheads->next) + die(_("Can merge only exactly one commit into empty head")); + remote_head_oid = &remoteheads->item->object.oid; + read_empty(remote_head_oid->hash, 0); + update_ref("initial pull", "HEAD", remote_head_oid->hash, NULL, 0, UPDATE_REFS_DIE_ON_ERR); goto done; - } else { - struct strbuf merge_names = STRBUF_INIT; - - /* We are invoked directly as the first-class UI. */ - head_arg = "HEAD"; - - /* - * All the rest are the commits being merged; prepare - * the standard merge summary message to be appended - * to the given message. - */ - remoteheads = collect_parents(head_commit, &head_subsumed, argc, argv); - for (p = remoteheads; p; p = p->next) - merge_name(merge_remote_util(p->item)->name, &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; - 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); - } } + /* + * All the rest are the commits being merged; prepare + * the standard merge summary message to be appended + * to the given message. + */ + remoteheads = collect_parents(head_commit, &head_subsumed, + argc, argv, &merge_msg); + if (!head_commit || !argc) usage_with_options(builtin_merge_usage, builtin_merge_options); @@ -1245,13 +1253,13 @@ int cmd_merge(int argc, const char **argv, const char *prefix) if (verify_signatures) { for (p = remoteheads; p; p = p->next) { struct commit *commit = p->item; - char hex[41]; + char hex[GIT_MAX_HEXSZ + 1]; struct signature_check signature_check; memset(&signature_check, 0, sizeof(signature_check)); check_commit_signature(commit, &signature_check); - strcpy(hex, find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV)); + find_unique_abbrev_r(hex, commit->object.oid.hash, DEFAULT_ABBREV); switch (signature_check.result) { case 'G': break; @@ -1281,7 +1289,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix) for (p = remoteheads; p; p = p->next) { struct commit *commit = p->item; strbuf_addf(&buf, "GITHEAD_%s", - sha1_to_hex(commit->object.sha1)); + oid_to_hex(&commit->object.oid)); setenv(buf.buf, merge_remote_util(commit)->name, 1); strbuf_reset(&buf); if (fast_forward != FF_ONLY && @@ -1321,35 +1329,37 @@ int cmd_merge(int argc, const char **argv, const char *prefix) free(list); } - update_ref("updating ORIG_HEAD", "ORIG_HEAD", head_commit->object.sha1, + 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. We need a real merge. */ - else if (!remoteheads || + 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."); + finish_up_to_date(_("Already up-to-date.")); goto done; } else if (fast_forward != FF_NO && !remoteheads->next && !common->next && - !hashcmp(common->item->object.sha1, head_commit->object.sha1)) { + !oidcmp(&common->item->object.oid, &head_commit->object.oid)) { /* 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) + if (verbosity >= 0) { printf(_("Updating %s..%s\n"), - hex, - find_unique_abbrev(remoteheads->item->object.sha1, - DEFAULT_ABBREV)); + find_unique_abbrev(head_commit->object.oid.hash, + DEFAULT_ABBREV), + find_unique_abbrev(remoteheads->item->object.oid.hash, + DEFAULT_ABBREV)); + } strbuf_addstr(&msg, "Fast-forward"); if (have_message) strbuf_addstr(&msg, @@ -1360,14 +1370,14 @@ 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, + &commit->object.oid, overwrite_ignore)) { ret = 1; goto done; } - finish(head_commit, remoteheads, commit->object.sha1, msg.buf); + finish(head_commit, remoteheads, &commit->object.oid, msg.buf); drop_save(); goto done; } else if (!remoteheads->next && common->next) @@ -1386,9 +1396,9 @@ int cmd_merge(int argc, const char **argv, const char *prefix) /* See if it is really trivial. */ 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)) { + if (!read_tree_trivial(&common->item->object.oid, + &head_commit->object.oid, + &remoteheads->item->object.oid)) { ret = merge_trivial(head_commit, remoteheads); goto done; } @@ -1411,14 +1421,13 @@ int cmd_merge(int argc, const char **argv, const char *prefix) * HEAD^^" would be missed. */ common_one = get_merge_bases(head_commit, j->item); - if (hashcmp(common_one->item->object.sha1, - j->item->object.sha1)) { + if (oidcmp(&common_one->item->object.oid, &j->item->object.oid)) { up_to_date = 0; break; } } if (up_to_date) { - finish_up_to_date("Already up-to-date. Yeeah!"); + finish_up_to_date(_("Already up-to-date. Yeeah!")); goto done; } } @@ -1441,14 +1450,14 @@ int cmd_merge(int argc, const char **argv, const char *prefix) /* * Stash away the local changes so that we can try more than one. */ - save_state(stash)) - hashcpy(stash, null_sha1); + save_state(&stash)) + oidclr(&stash); for (i = 0; i < use_strategies_nr; i++) { int ret; if (i) { printf(_("Rewinding the tree to pristine...\n")); - restore_state(head_commit->object.sha1, stash); + restore_state(&head_commit->object.oid, &stash); } if (use_strategies_nr != 1) printf(_("Trying merge strategy %s...\n"), @@ -1461,7 +1470,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix) ret = try_merge_strategy(use_strategies[i]->name, common, remoteheads, - head_commit, head_arg); + head_commit); if (!option_commit && !ret) { merge_was_ok = 1; /* @@ -1493,7 +1502,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix) } /* Automerge succeeded. */ - write_tree_trivial(result_tree); + write_tree_trivial(&result_tree); automerge_was_ok = 1; break; } @@ -1505,7 +1514,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix) if (automerge_was_ok) { ret = finish_automerge(head_commit, head_subsumed, common, remoteheads, - result_tree, wt_strategy); + &result_tree, wt_strategy); goto done; } @@ -1514,7 +1523,7 @@ 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, &stash); if (use_strategies_nr > 1) fprintf(stderr, _("No merge strategy handled the merge.\n")); @@ -1527,11 +1536,11 @@ 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, &stash); printf(_("Using the %s to prepare resolving by hand.\n"), best_strategy); try_merge_strategy(best_strategy, common, remoteheads, - head_commit, head_arg); + head_commit); } if (squash) 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 a964d6be52..da0fd8cd70 100644 --- a/builtin/mktree.c +++ b/builtin/mktree.c @@ -19,16 +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); - ALLOC_GROW(entries, used + 1, 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_) @@ -45,7 +46,7 @@ static void write_tree(unsigned char *sha1) size_t size; int i; - qsort(entries, used, sizeof(*entries), ent_compare); + QSORT(entries, used, ent_compare); for (size = i = 0; i < used; i++) size += 32 + entries[i]->len; @@ -65,13 +66,13 @@ static const char *mktree_usage[] = { 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; enum object_type mode_type; /* object type derived from mode */ enum object_type obj_type; /* object type derived from sha */ - char *path; + char *path, *to_free = NULL; unsigned char sha1[20]; ptr = buf; @@ -97,11 +98,11 @@ 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"); - path = strbuf_detach(&p_uq, NULL); + path = to_free = strbuf_detach(&p_uq, NULL); } /* @@ -135,29 +136,32 @@ static void mktree_line(char *buf, size_t len, int line_termination, int allow_m } append_to_tree(mode, sha1, path); + free(to_free); } 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, N_("input is NUL terminated"), '\0'), + 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; } @@ -167,7 +171,7 @@ 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 d1d43168ae..61d20037ad 100644 --- a/builtin/mv.c +++ b/builtin/mv.c @@ -4,6 +4,7 @@ * Copyright (C) 2006 Johannes Schindelin */ #include "builtin.h" +#include "pathspec.h" #include "lockfile.h" #include "dir.h" #include "cache-tree.h" @@ -19,37 +20,49 @@ static const char * const builtin_mv_usage[] = { #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) +static const char **internal_prefix_pathspec(const char *prefix, + const char **pathspec, + int count, unsigned flags) { int i; - const char **result = xmalloc((count + 1) * sizeof(const char *)); - memcpy(result, pathspec, count * sizeof(const char *)); - result[count] = NULL; + const char **result; + int prefixlen = prefix ? strlen(prefix) : 0; + ALLOC_ARRAY(result, count + 1); + + /* Create an intermediate copy of the pathspec based on the flags */ for (i = 0; i < count; i++) { - int length = strlen(result[i]); + int length = strlen(pathspec[i]); int to_copy = length; + char *it; while (!(flags & KEEP_TRAILING_SLASH) && - to_copy > 0 && is_dir_sep(result[i][to_copy - 1])) + to_copy > 0 && is_dir_sep(pathspec[i][to_copy - 1])) to_copy--; - if (to_copy != length || flags & DUP_BASENAME) { - char *it = xmemdupz(result[i], to_copy); - if (flags & DUP_BASENAME) { - result[i] = xstrdup(basename(it)); - free(it); - } else - result[i] = it; + + it = xmemdupz(pathspec[i], to_copy); + if (flags & DUP_BASENAME) { + result[i] = xstrdup(basename(it)); + free(it); + } else { + result[i] = it; } } - return get_pathspec(prefix, result); + result[count] = NULL; + + /* Prefix the pathspec and free the old intermediate strings */ + for (i = 0; i < count; i++) { + const char *match = prefix_path(prefix, prefixlen, result[i]); + free((char *) result[i]); + result[i] = match; + } + + return result; } 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; @@ -103,7 +116,7 @@ static int index_range_of_same_dir(const char *src, int length, int cmd_mv(int argc, const char **argv, const char *prefix) { - int i, gitmodules_modified = 0; + int i, flags, gitmodules_modified = 0; int verbose = 0, show_only = 0, force = 0, ignore_errors = 0; struct option builtin_mv_options[] = { OPT__VERBOSE(&verbose, N_("be verbose")), @@ -125,27 +138,30 @@ int cmd_mv(int argc, const char **argv, const char *prefix) if (--argc < 1) usage_with_options(builtin_mv_usage, builtin_mv_options); - hold_locked_index(&lock_file, 1); + hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR); if (read_cache() < 0) die(_("index file corrupt")); - source = internal_copy_pathspec(prefix, argv, argc, 0); + source = internal_prefix_pathspec(prefix, argv, argc, 0); modes = xcalloc(argc, sizeof(enum update_mode)); /* * Keep trailing slash, needed to let - * "git mv file no-such-dir/" error out. + * "git mv file no-such-dir/" error out, except in the case + * "git mv directory no-such-dir/". */ - dest_path = internal_copy_pathspec(prefix, argv + argc, 1, - KEEP_TRAILING_SLASH); + flags = KEEP_TRAILING_SLASH; + if (argc == 1 && is_directory(argv[0]) && !is_directory(argv[1])) + flags = 0; + dest_path = internal_prefix_pathspec(prefix, argv + argc, 1, flags); submodule_gitfile = xcalloc(argc, sizeof(char *)); if (dest_path[0][0] == '\0') /* special case: "." was normalized to "" */ - destination = internal_copy_pathspec(dest_path[0], argv, argc, DUP_BASENAME); + destination = internal_prefix_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 = internal_copy_pathspec(dest_path[0], argv, argc, DUP_BASENAME); + destination = internal_prefix_pathspec(dest_path[0], argv, argc, DUP_BASENAME); } else { if (argc != 1) die(_("destination '%s' is not a directory"), dest_path[0]); @@ -251,15 +267,18 @@ 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) { - if (rename(src, dst) < 0 && !ignore_errors) - 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 (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) diff --git a/builtin/name-rev.c b/builtin/name-rev.c index 9736d4452f..7fc7e66e85 100644 --- a/builtin/name-rev.c +++ b/builtin/name-rev.c @@ -10,22 +10,64 @@ typedef struct rev_name { const char *tip_name; + timestamp_t taggerdate; int generation; int distance; + int from_tag; } rev_name; -static long cutoff = LONG_MAX; +static timestamp_t cutoff = TIME_MAX; /* How many generations are maximally preferred over _one_ merge traversal? */ #define MERGE_TRAVERSAL_WEIGHT 65535 +static int is_better_name(struct rev_name *name, + const char *tip_name, + timestamp_t taggerdate, + int generation, + int distance, + int from_tag) +{ + /* + * When comparing names based on tags, prefer names + * based on the older tag, even if it is farther away. + */ + if (from_tag && name->from_tag) + return (name->taggerdate > taggerdate || + (name->taggerdate == taggerdate && + name->distance > distance)); + + /* + * We know that at least one of them is a non-tag at this point. + * favor a tag over a non-tag. + */ + if (name->from_tag != from_tag) + return from_tag; + + /* + * We are now looking at two non-tags. Tiebreak to favor + * shorter hops. + */ + if (name->distance != distance) + return name->distance > distance; + + /* ... or tiebreak to favor older date */ + if (name->taggerdate != taggerdate) + return name->taggerdate > taggerdate; + + /* keep the current one if we cannot decide */ + return 0; +} + static void name_rev(struct commit *commit, - const char *tip_name, int generation, int distance, + const char *tip_name, timestamp_t taggerdate, + int generation, int distance, int from_tag, int deref) { struct rev_name *name = (struct rev_name *)commit->util; struct commit_list *parents; int parent_number = 1; + char *to_free = NULL; parse_commit(commit); @@ -33,7 +75,7 @@ static void name_rev(struct commit *commit, return; if (deref) { - tip_name = xstrfmt("%s^0", tip_name); + tip_name = to_free = xstrfmt("%s^0", tip_name); if (generation) die("generation: %d, but deref?", generation); @@ -43,38 +85,41 @@ 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 (is_better_name(name, tip_name, taggerdate, + generation, distance, from_tag)) { copy_data: name->tip_name = tip_name; + name->taggerdate = taggerdate; name->generation = generation; name->distance = distance; - } else + name->from_tag = from_tag; + } else { + free(to_free); return; + } for (parents = commit->parents; 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, - distance + MERGE_TRAVERSAL_WEIGHT, 0); + name_rev(parents->item, new_name, taggerdate, 0, + distance + MERGE_TRAVERSAL_WEIGHT, + from_tag, 0); } else { - name_rev(parents->item, tip_name, generation + 1, - distance + 1, 0); + name_rev(parents->item, tip_name, taggerdate, + generation + 1, distance + 1, + from_tag, 0); } } } @@ -107,12 +152,13 @@ static const char *name_ref_abbrev(const char *refname, int shorten_unambiguous) struct name_ref_data { int tags_only; int name_only; - const char *ref_filter; + struct string_list ref_filters; + struct string_list exclude_filters; }; static struct tip_table { struct tip_table_entry { - unsigned char sha1[20]; + struct object_id oid; const char *refname; } *table; int nr; @@ -120,13 +166,13 @@ static struct tip_table { int sorted; } tip_table; -static void add_to_tip_table(const unsigned char *sha1, const char *refname, +static void add_to_tip_table(const struct object_id *oid, const char *refname, int shorten_unambiguous) { 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); + oidcpy(&tip_table.table[tip_table.nr].oid, oid); tip_table.table[tip_table.nr].refname = xstrdup(refname); tip_table.nr++; tip_table.sorted = 0; @@ -135,45 +181,82 @@ static void add_to_tip_table(const unsigned char *sha1, const char *refname, static int tipcmp(const void *a_, const void *b_) { const struct tip_table_entry *a = a_, *b = b_; - return hashcmp(a->sha1, b->sha1); + return oidcmp(&a->oid, &b->oid); } -static int name_ref(const char *path, const unsigned char *sha1, int flags, void *cb_data) +static int name_ref(const char *path, const struct object_id *oid, int flags, void *cb_data) { - struct object *o = parse_object(sha1); + struct object *o = parse_object(oid); struct name_ref_data *data = cb_data; int can_abbreviate_output = data->tags_only && data->name_only; int deref = 0; + timestamp_t taggerdate = TIME_MAX; if (data->tags_only && !starts_with(path, "refs/tags/")) 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; + if (data->exclude_filters.nr) { + struct string_list_item *item; + + for_each_string_list_item(item, &data->exclude_filters) { + if (subpath_matches(path, item->string) >= 0) + return 0; + } + } + + if (data->ref_filters.nr) { + struct string_list_item *item; + int matched = 0; + + /* See if any of the patterns match. */ + for_each_string_list_item(item, &data->ref_filters) { + /* + * Check all patterns even after finding a match, so + * that we can see if a match with a subpath exists. + * When a user asked for 'refs/tags/v*' and 'v1.*', + * both of which match, the user is showing her + * willingness to accept a shortened output by having + * the 'v1.*' in the acceptable refnames, so we + * shouldn't stop when seeing 'refs/tags/v1.4' matches + * 'refs/tags/v*'. We should show it as 'v1.4'. + */ + switch (subpath_matches(path, item->string)) { + case -1: /* did not match */ + break; + case 0: /* matched fully */ + matched = 1; + break; + default: /* matched subpath */ + matched = 1; + can_abbreviate_output = 1; + break; + } } + + /* If none of the patterns matched, stop now */ + if (!matched) + return 0; } - add_to_tip_table(sha1, path, can_abbreviate_output); + add_to_tip_table(oid, 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); deref = 1; + taggerdate = t->date; } if (o && o->type == OBJ_COMMIT) { struct commit *commit = (struct commit *)o; + int from_tag = starts_with(path, "refs/tags/"); + if (taggerdate == ULONG_MAX) + taggerdate = ((struct commit *)o)->date; path = name_ref_abbrev(path, can_abbreviate_output); - name_rev(commit, xstrdup(path), 0, 0, deref); + name_rev(commit, xstrdup(path), taggerdate, 0, 0, + from_tag, deref); } return 0; } @@ -181,7 +264,7 @@ static int name_ref(const char *path, const unsigned char *sha1, int flags, void static const unsigned char *nth_tip_table_ent(size_t ix, void *table_) { struct tip_table_entry *table = table_; - return table[ix].sha1; + return table[ix].oid.hash; } static const char *get_exact_ref_match(const struct object *o) @@ -192,22 +275,20 @@ static const char *get_exact_ref_match(const struct object *o) return NULL; if (!tip_table.sorted) { - qsort(tip_table.table, tip_table.nr, sizeof(*tip_table.table), - tipcmp); + QSORT(tip_table.table, tip_table.nr, tipcmp); tip_table.sorted = 1; } - found = sha1_pos(o->sha1, tip_table.table, tip_table.nr, + 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) +/* may return a constant string or use "buf" as scratch space */ +static const char *get_rev_name(const struct object *o, struct strbuf *buf) { - static char buffer[1024]; struct rev_name *n; struct commit *c; @@ -224,10 +305,9 @@ static const char *get_rev_name(const struct object *o) int len = strlen(n->tip_name); if (len > 2 && !strcmp(n->tip_name + len - 2, "^0")) len -= 2; - snprintf(buffer, sizeof(buffer), "%.*s~%d", len, n->tip_name, - n->generation); - - return buffer; + strbuf_reset(buf); + strbuf_addf(buf, "%.*s~%d", len, n->tip_name, n->generation); + return buf->buf; } } @@ -236,19 +316,21 @@ 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; + struct strbuf buf = STRBUF_INIT; if (!name_only) - printf("%s ", caller_name ? caller_name : sha1_to_hex(sha1)); - name = get_rev_name(obj); + printf("%s ", caller_name ? caller_name : oid_to_hex(oid)); + name = get_rev_name(obj, &buf); 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)); + strbuf_release(&buf); } static char const * const name_rev_usage[] = { @@ -260,15 +342,16 @@ static char const * const name_rev_usage[] = { static void name_rev_line(char *p, struct name_ref_data *data) { + struct strbuf buf = STRBUF_INIT; int forty = 0; char *p_start; for (p_start = p; *p; p++) { #define ishex(x) (isdigit((x)) || ((x) >= 'a' && (x) <= 'f')) if (!ishex(*p)) forty = 0; - else if (++forty == 40 && + else if (++forty == GIT_SHA1_HEXSZ && !ishex(*(p+1))) { - unsigned char sha1[40]; + struct object_id oid; const char *name = NULL; char c = *(p+1); int p_len = p - p_start + 1; @@ -276,11 +359,11 @@ static void name_rev_line(char *p, struct name_ref_data *data) forty = 0; *(p+1) = 0; - if (!get_sha1(p - 39, sha1)) { + if (!get_oid(p - (GIT_SHA1_HEXSZ - 1), &oid)) { struct object *o = - lookup_object(sha1); + lookup_object(oid.hash); if (o) - name = get_rev_name(o); + name = get_rev_name(o, &buf); } *(p+1) = c; @@ -288,7 +371,7 @@ static void name_rev_line(char *p, struct name_ref_data *data) continue; if (data->name_only) - printf("%.*s%s", p_len - 40, p_start, name); + printf("%.*s%s", p_len - GIT_SHA1_HEXSZ, p_start, name); else printf("%.*s (%s)", p_len, p_start, name); p_start = p + 1; @@ -298,18 +381,22 @@ static void name_rev_line(char *p, struct name_ref_data *data) /* flush */ if (p_start != p) fwrite(p_start, p - p_start, 1, stdout); + + strbuf_release(&buf); } 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, peel_tag = 0; - struct name_ref_data data = { 0, 0, NULL }; + struct name_ref_data data = { 0, 0, STRING_LIST_INIT_NODUP, STRING_LIST_INIT_NODUP }; struct option opts[] = { 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"), + OPT_STRING_LIST(0, "refs", &data.ref_filters, N_("pattern"), N_("only use refs matching <pattern>")), + OPT_STRING_LIST(0, "exclude", &data.exclude_filters, N_("pattern"), + N_("ignore refs matching <pattern>")), OPT_GROUP(""), OPT_BOOL(0, "all", &all, N_("list all commits reachable from all refs")), OPT_BOOL(0, "stdin", &transform_stdin, N_("read from stdin")), @@ -335,18 +422,18 @@ int cmd_name_rev(int argc, const char **argv, const char *prefix) cutoff = 0; for (; argc; argc--, argv++) { - unsigned char sha1[20]; + struct object_id oid; struct object *object; struct commit *commit; - if (get_sha1(*argv, sha1)) { + if (get_oid(*argv, &oid)) { fprintf(stderr, "Could not get sha1 for %s. Skipping.\n", *argv); continue; } commit = NULL; - object = parse_object(sha1); + object = parse_object(&oid); if (object) { struct object *peeled = deref_tag(object, *argv, 0); if (peeled && peeled->type == OBJ_COMMIT) diff --git a/builtin/notes.c b/builtin/notes.c index 63f95fc554..7196bff0eb 100644 --- a/builtin/notes.c +++ b/builtin/notes.c @@ -19,6 +19,7 @@ #include "string-list.h" #include "notes-merge.h" #include "notes-utils.h" +#include "worktree.h" static const char * const git_notes_usage[] = { N_("git notes [--ref <notes-ref>] [list [<object>]]"), @@ -90,7 +91,7 @@ static const char * const git_notes_get_ref_usage[] = { }; static const char note_template[] = - "\nWrite/edit the notes for the following object:\n"; + N_("Write/edit the notes for the following object:"); struct note_data { int given; @@ -178,7 +179,8 @@ static void prepare_note_data(const unsigned char *object, struct note_data *d, copy_obj_to_fd(fd, old_note); strbuf_addch(&buf, '\n'); - strbuf_add_commented_lines(&buf, note_template, strlen(note_template)); + strbuf_add_commented_lines(&buf, "\n", strlen("\n")); + strbuf_add_commented_lines(&buf, _(note_template), strlen(_(note_template))); strbuf_addch(&buf, '\n'); write_or_die(fd, buf.buf, buf.len); @@ -189,9 +191,9 @@ static void prepare_note_data(const unsigned char *object, struct note_data *d, strbuf_reset(&d->buf); if (launch_editor(d->edit_path, &d->buf, NULL)) { - die(_("Please supply the note contents using either -m or -F option")); + die(_("please supply the note contents using either -m or -F option")); } - stripspace(&d->buf, 1); + strbuf_stripspace(&d->buf, 1); } } @@ -200,7 +202,7 @@ 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"), + error(_("the note contents have been left in %s"), d->edit_path); exit(128); } @@ -214,7 +216,7 @@ static int parse_msg_arg(const struct option *opt, const char *arg, int unset) if (d->buf.len) strbuf_addch(&d->buf, '\n'); strbuf_addstr(&d->buf, arg); - stripspace(&d->buf, 0); + strbuf_stripspace(&d->buf, 0); d->given = 1; return 0; @@ -231,7 +233,7 @@ static int parse_file_arg(const struct option *opt, const char *arg, int unset) die_errno(_("cannot read '%s'"), arg); } else if (strbuf_read_file(&d->buf, arg, 1024) < 0) die_errno(_("could not open or read '%s'"), arg); - stripspace(&d->buf, 0); + strbuf_stripspace(&d->buf, 0); d->given = 1; return 0; @@ -249,14 +251,14 @@ static int parse_reuse_arg(const struct option *opt, const char *arg, int unset) strbuf_addch(&d->buf, '\n'); if (get_sha1(arg, object)) - die(_("Failed to resolve '%s' as a valid ref."), arg); + die(_("failed to resolve '%s' as a valid ref."), arg); if (!(buf = read_sha1_file(object, &type, &len))) { free(buf); - die(_("Failed to read object '%s'."), arg); + die(_("failed to read object '%s'."), arg); } if (type != OBJ_BLOB) { free(buf); - die(_("Cannot read note data from non-blob object '%s'."), arg); + die(_("cannot read note data from non-blob object '%s'."), arg); } strbuf_add(&d->buf, buf, len); free(buf); @@ -285,24 +287,24 @@ static int notes_copy_from_stdin(int force, const char *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; split = strbuf_split(&buf, ' '); if (!split[0] || !split[1]) - die(_("Malformed input line: '%s'."), buf.buf); + die(_("malformed input line: '%s'."), buf.buf); strbuf_rtrim(split[0]); strbuf_rtrim(split[1]); if (get_sha1(split[0]->buf, from_obj)) - die(_("Failed to resolve '%s' as a valid ref."), split[0]->buf); + die(_("failed to resolve '%s' as a valid ref."), split[0]->buf); if (get_sha1(split[1]->buf, to_obj)) - die(_("Failed to resolve '%s' as a valid ref."), split[1]->buf); + die(_("failed to resolve '%s' as a valid ref."), split[1]->buf); if (rewrite_cmd) err = copy_note_for_rewrite(c, from_obj, to_obj); @@ -311,7 +313,7 @@ static int notes_copy_from_stdin(int force, const char *rewrite_cmd) combine_notes_overwrite); if (err) { - error(_("Failed to copy notes from '%s' to '%s'"), + error(_("failed to copy notes from '%s' to '%s'"), split[0]->buf, split[1]->buf); ret = 1; } @@ -328,15 +330,22 @@ static int notes_copy_from_stdin(int force, const char *rewrite_cmd) 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 (!starts_with(t->ref, "refs/notes/")) - die("Refusing to %s notes in %s (outside of refs/notes/)", - subcommand, t->ref); + ref = (flags & NOTES_INIT_WRITABLE) ? t->update_ref : t->ref; + if (!starts_with(ref, "refs/notes/")) + /* + * TRANSLATORS: the first %s will be replaced by a git + * notes command: 'add', 'merge', 'remove', etc. + */ + die(_("refusing to %s notes in %s (outside of refs/notes/)"), + subcommand, ref); return t; } @@ -359,16 +368,16 @@ 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]); + die(_("failed to resolve '%s' as a valid ref."), argv[0]); note = get_note(t, object); if (note) { puts(sha1_to_hex(note)); retval = 0; } else - retval = error(_("No note found for object %s."), + retval = error(_("no note found for object %s."), sha1_to_hex(object)); } else retval = for_each_note(t, 0, list_each_note, NULL); @@ -417,9 +426,9 @@ static int add(int argc, const char **argv, const char *prefix) object_ref = argc > 1 ? argv[1] : "HEAD"; if (get_sha1(object_ref, object)) - die(_("Failed to resolve '%s' as a valid ref."), object_ref); + 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) { @@ -503,14 +512,14 @@ static int copy(int argc, const char **argv, const char *prefix) } if (get_sha1(argv[0], from_obj)) - die(_("Failed to resolve '%s' as a valid ref."), argv[0]); + die(_("failed to resolve '%s' as a valid ref."), argv[0]); object_ref = 1 < argc ? argv[1] : "HEAD"; if (get_sha1(object_ref, object)) - die(_("Failed to resolve '%s' as a valid ref."), object_ref); + 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) { @@ -527,7 +536,7 @@ static int copy(int argc, const char **argv, const char *prefix) from_note = get_note(t, from_obj); if (!from_note) { - retval = error(_("Missing notes on source object %s. Cannot " + retval = error(_("missing notes on source object %s. Cannot " "copy."), sha1_to_hex(from_obj)); goto out; } @@ -547,7 +556,7 @@ static int append_edit(int argc, const char **argv, const char *prefix) struct notes_tree *t; unsigned char object[20], new_note[20]; const unsigned char *note; - char logmsg[100]; + char *logmsg; const char * const *usage; struct note_data d = { 0, 0, NULL, STRBUF_INIT }; struct option options[] = { @@ -586,9 +595,9 @@ static int append_edit(int argc, const char **argv, const char *prefix) object_ref = 1 < argc ? argv[1] : "HEAD"; if (get_sha1(object_ref, object)) - die(_("Failed to resolve '%s' as a valid ref."), object_ref); + 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); prepare_note_data(object, &d, edit ? note : NULL); @@ -611,17 +620,16 @@ static int append_edit(int argc, const char **argv, const char *prefix) 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]); + logmsg = xstrfmt("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]); + logmsg = xstrfmt("Notes removed by 'git notes %s'", argv[0]); } commit_notes(t, logmsg); + free(logmsg); free_note_data(&d); free_notes(t); return 0; @@ -649,13 +657,13 @@ static int show(int argc, const char **argv, const char *prefix) object_ref = argc ? argv[0] : "HEAD"; if (get_sha1(object_ref, object)) - die(_("Failed to resolve '%s' as a valid ref."), object_ref); + 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) - retval = error(_("No note found for object %s."), + retval = error(_("no note found for object %s."), sha1_to_hex(object)); else { const char *show_args[3] = {"show", sha1_to_hex(note), NULL}; @@ -674,19 +682,19 @@ static int merge_abort(struct notes_merge_options *o) * notes_merge_abort() to remove .git/NOTES_MERGE_WORKTREE. */ - if (delete_ref("NOTES_MERGE_PARTIAL", NULL, 0)) - ret += error("Failed to delete ref NOTES_MERGE_PARTIAL"); - if (delete_ref("NOTES_MERGE_REF", NULL, REF_NODEREF)) - ret += error("Failed to delete ref NOTES_MERGE_REF"); + if (delete_ref(NULL, "NOTES_MERGE_PARTIAL", NULL, 0)) + ret += error(_("failed to delete ref NOTES_MERGE_PARTIAL")); + if (delete_ref(NULL, "NOTES_MERGE_REF", NULL, REF_NODEREF)) + ret += error(_("failed to delete ref NOTES_MERGE_REF")); if (notes_merge_abort(o)) - ret += error("Failed to remove 'git notes merge' worktree"); + ret += error(_("failed to remove 'git notes merge' worktree")); return ret; } static int merge_commit(struct notes_merge_options *o) { struct strbuf msg = STRBUF_INIT; - unsigned char sha1[20], parent_sha1[20]; + struct object_id oid, parent_oid; struct notes_tree *t; struct commit *partial; struct pretty_print_context pretty_ctx; @@ -698,36 +706,36 @@ static int merge_commit(struct notes_merge_options *o) * and target notes ref from .git/NOTES_MERGE_REF. */ - if (get_sha1("NOTES_MERGE_PARTIAL", sha1)) - die("Failed to read ref NOTES_MERGE_PARTIAL"); - else if (!(partial = lookup_commit_reference(sha1))) - die("Could not find commit from NOTES_MERGE_PARTIAL."); + if (get_oid("NOTES_MERGE_PARTIAL", &oid)) + die(_("failed to read ref NOTES_MERGE_PARTIAL")); + else if (!(partial = lookup_commit_reference(&oid))) + die(_("could not find commit from NOTES_MERGE_PARTIAL.")); else if (parse_commit(partial)) - die("Could not parse commit from NOTES_MERGE_PARTIAL."); + die(_("could not parse commit from NOTES_MERGE_PARTIAL.")); if (partial->parents) - hashcpy(parent_sha1, partial->parents->item->object.sha1); + oidcpy(&parent_oid, &partial->parents->item->object.oid); else - hashclr(parent_sha1); + oidclr(&parent_oid); t = xcalloc(1, sizeof(struct notes_tree)); init_notes(t, "NOTES_MERGE_PARTIAL", combine_notes_overwrite, 0); o->local_ref = local_ref_to_free = - resolve_refdup("NOTES_MERGE_REF", 0, sha1, NULL); + resolve_refdup("NOTES_MERGE_REF", 0, oid.hash, NULL); if (!o->local_ref) - die("Failed to resolve NOTES_MERGE_REF"); + die(_("failed to resolve NOTES_MERGE_REF")); - if (notes_merge_commit(o, t, partial, sha1)) - die("Failed to finalize notes merge"); + if (notes_merge_commit(o, t, partial, oid.hash)) + die(_("failed to finalize notes merge")); /* Reuse existing commit message in reflog message */ memset(&pretty_ctx, 0, sizeof(pretty_ctx)); format_commit_message(partial, "%s", &msg, &pretty_ctx); strbuf_trim(&msg); strbuf_insert(&msg, 0, "notes: ", 7); - update_ref(msg.buf, o->local_ref, sha1, - is_null_sha1(parent_sha1) ? NULL : parent_sha1, + update_ref(msg.buf, o->local_ref, oid.hash, + is_null_oid(&parent_oid) ? NULL : parent_oid.hash, 0, UPDATE_REFS_DIE_ON_ERR); free_notes(t); @@ -737,6 +745,20 @@ 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; @@ -770,15 +792,15 @@ static int merge(int argc, const char **argv, const char *prefix) if (strategy || do_commit + do_abort == 0) do_merge = 1; if (do_merge + do_commit + do_abort != 1) { - error("cannot mix --commit, --abort or -s/--strategy"); + error(_("cannot mix --commit, --abort or -s/--strategy")); usage_with_options(git_notes_merge_usage, options); } if (do_merge && argc != 1) { - error("Must specify a notes ref to merge"); + error(_("must specify a notes ref to merge")); usage_with_options(git_notes_merge_usage, options); } else if (!do_merge && argc) { - error("too many parameters"); + error(_("too many parameters")); usage_with_options(git_notes_merge_usage, options); } @@ -792,27 +814,31 @@ 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 { - error("Unknown -s/--strategy: %s", strategy); + 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); + + strbuf_addf(&merge_key, "notes.%s.mergeStrategy", short_ref); - t = init_notes_check("merge"); + 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()); @@ -825,16 +851,21 @@ static int merge(int argc, const char **argv, const char *prefix) update_ref(msg.buf, default_notes_ref(), result_sha1, NULL, 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, 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)", + die(_("failed to store link to current notes ref (%s)"), default_notes_ref()); - printf("Automatic notes merge failed. Fix conflicts in %s and " - "commit the result with 'git notes merge --commit', or " - "abort the merge with 'git notes merge --abort'.\n", + printf(_("Automatic notes merge failed. Fix conflicts in %s and " + "commit the result with 'git notes merge --commit', or " + "abort the merge with 'git notes merge --abort'.\n"), git_path(NOTES_MERGE_WORKTREE)); } @@ -878,7 +909,7 @@ 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); @@ -907,8 +938,8 @@ static int prune(int argc, const char **argv, const char *prefix) struct notes_tree *t; int show_only = 0, verbose = 0; struct option options[] = { - OPT__DRY_RUN(&show_only, "do not remove, show only"), - OPT__VERBOSE(&verbose, "report pruned notes"), + OPT__DRY_RUN(&show_only, N_("do not remove, show only")), + OPT__VERBOSE(&verbose, N_("report pruned notes")), OPT_END() }; @@ -920,7 +951,7 @@ 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) ); @@ -937,7 +968,7 @@ static int get_ref(int argc, const char **argv, const char *prefix) git_notes_get_ref_usage, 0); if (argc) { - error("too many parameters"); + error(_("too many parameters")); usage_with_options(git_notes_get_ref_usage, options); } @@ -986,7 +1017,7 @@ int cmd_notes(int argc, const char **argv, const char *prefix) else if (!strcmp(argv[0], "get-ref")) result = get_ref(argc, argv, prefix); else { - result = error(_("Unknown subcommand: %s"), argv[0]); + result = error(_("unknown subcommand: %s"), argv[0]); usage_with_options(git_notes_usage, options); } diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c index c067107a6a..f672225def 100644 --- a/builtin/pack-objects.c +++ b/builtin/pack-objects.c @@ -23,10 +23,11 @@ #include "reachable.h" #include "sha1-array.h" #include "argv-array.h" +#include "mru.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]"), + N_("git pack-objects --stdout [<options>...] [< <ref-list> | < <object-list>]"), + N_("git pack-objects [<options>...] <base-name> [< <ref-list> | < <object-list>]"), NULL }; @@ -43,8 +44,10 @@ 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 timestamp_t unpack_unreachable_expiration; +static int pack_loose_unreachable; static int local; +static int have_non_local_packs; static int incremental; static int ignore_packed_keep; static int allow_ofs_delta; @@ -58,14 +61,13 @@ static int delta_search_threads; static int pack_to_stdout; static int num_preferred_base; 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 use_bitmap_index_default = 1; +static int use_bitmap_index = -1; static int write_bitmap_index; static uint16_t write_bitmap_options; @@ -104,12 +106,14 @@ static void *get_delta(struct object_entry *entry) void *buf, *base_buf, *delta_buf; enum object_type type; - buf = read_sha1_file(entry->idx.sha1, &type, &size); + buf = read_sha1_file(entry->idx.oid.hash, &type, &size); if (!buf) - die("unable to read %s", sha1_to_hex(entry->idx.sha1)); - base_buf = read_sha1_file(entry->delta->idx.sha1, &type, &base_size); + die("unable to read %s", oid_to_hex(&entry->idx.oid)); + base_buf = read_sha1_file(entry->delta->idx.oid.hash, &type, + &base_size); if (!base_buf) - die("unable to read %s", sha1_to_hex(entry->delta->idx.sha1)); + die("unable to read %s", + oid_to_hex(&entry->delta->idx.oid)); delta_buf = diff_delta(base_buf, base_size, buf, size, &delta_size, 0); if (!delta_buf || delta_size != entry->delta_size) @@ -237,7 +241,8 @@ static unsigned long write_no_reuse_object(struct sha1file *f, struct object_ent unsigned long limit, int usable_delta) { unsigned long size, datalen; - unsigned char header[10], dheader[10]; + unsigned char header[MAX_PACK_OBJECT_HEADER], + dheader[MAX_PACK_OBJECT_HEADER]; unsigned hdrlen; enum object_type type; void *buf; @@ -246,12 +251,14 @@ static unsigned long write_no_reuse_object(struct sha1file *f, struct object_ent if (!usable_delta) { if (entry->type == OBJ_BLOB && entry->size > big_file_threshold && - (st = open_istream(entry->idx.sha1, &type, &size, NULL)) != NULL) + (st = open_istream(entry->idx.oid.hash, &type, &size, NULL)) != NULL) buf = NULL; else { - buf = read_sha1_file(entry->idx.sha1, &type, &size); + buf = read_sha1_file(entry->idx.oid.hash, &type, + &size); if (!buf) - die(_("unable to read %s"), sha1_to_hex(entry->idx.sha1)); + die(_("unable to read %s"), + oid_to_hex(&entry->idx.oid)); } /* * make sure no cached delta data remains from a @@ -284,7 +291,8 @@ static unsigned long write_no_reuse_object(struct sha1file *f, struct object_ent * 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); + hdrlen = encode_in_pack_object_header(header, sizeof(header), + type, size); if (type == OBJ_OFS_DELTA) { /* @@ -318,7 +326,7 @@ static unsigned long write_no_reuse_object(struct sha1file *f, struct object_ent return 0; } sha1write(f, header, hdrlen); - sha1write(f, entry->delta->idx.sha1, 20); + sha1write(f, entry->delta->idx.oid.hash, 20); hdrlen += 20; } else { if (limit && hdrlen + datalen + 20 >= limit) { @@ -330,7 +338,7 @@ static unsigned long write_no_reuse_object(struct sha1file *f, struct object_ent sha1write(f, header, hdrlen); } if (st) { - datalen = write_large_blob_data(st, f, entry->idx.sha1); + datalen = write_large_blob_data(st, f, entry->idx.oid.hash); close_istream(st); } else { sha1write(f, buf, datalen); @@ -341,29 +349,32 @@ static unsigned long write_no_reuse_object(struct sha1file *f, struct object_ent } /* 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) +static off_t 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]; + off_t datalen; + unsigned char header[MAX_PACK_OBJECT_HEADER], + dheader[MAX_PACK_OBJECT_HEADER]; 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); + hdrlen = encode_in_pack_object_header(header, sizeof(header), + type, entry->size); 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)); + error("bad packed object CRC for %s", + oid_to_hex(&entry->idx.oid)); unuse_pack(&w_curs); return write_no_reuse_object(f, entry, limit, usable_delta); } @@ -373,7 +384,8 @@ static unsigned long write_reuse_object(struct sha1file *f, struct object_entry 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)); + error("corrupt packed object for %s", + oid_to_hex(&entry->idx.oid)); unuse_pack(&w_curs); return write_no_reuse_object(f, entry, limit, usable_delta); } @@ -398,7 +410,7 @@ static unsigned long write_reuse_object(struct sha1file *f, struct object_entry return 0; } sha1write(f, header, hdrlen); - sha1write(f, entry->delta->idx.sha1, 20); + sha1write(f, entry->delta->idx.oid.hash, 20); hdrlen += 20; reused_delta++; } else { @@ -415,11 +427,12 @@ static unsigned long write_reuse_object(struct sha1file *f, struct object_entry } /* 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 off_t write_object(struct sha1file *f, + struct object_entry *entry, + off_t write_offset) { - unsigned long limit, len; + unsigned long limit; + off_t len; int usable_delta, to_reuse; if (!pack_to_stdout) @@ -491,7 +504,7 @@ static enum write_one_status write_one(struct sha1file *f, struct object_entry *e, off_t *offset) { - unsigned long size; + off_t size; int recursing; /* @@ -502,7 +515,7 @@ static enum write_one_status write_one(struct sha1file *f, recursing = (e->idx.offset == 1); if (recursing) { warning("recursive delta detected for object %s", - sha1_to_hex(e->idx.sha1)); + oid_to_hex(&e->idx.oid)); return WRITE_ONE_RECURSIVE; } else if (e->idx.offset || e->preferred_base) { /* offset is non zero if object is written already. */ @@ -540,11 +553,11 @@ 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 = packlist_find(&to_pack, sha1, NULL); + struct object_entry *entry = packlist_find(&to_pack, oid->hash, NULL); if (entry) entry->tagged = 1; @@ -624,7 +637,7 @@ static struct object_entry **compute_write_order(void) { unsigned int i, wo_end, last_untagged; - struct object_entry **wo = xmalloc(to_pack.nr_objects * sizeof(*wo)); + struct object_entry **wo; struct object_entry *objects = to_pack.objects; for (i = 0; i < to_pack.nr_objects; i++) { @@ -657,6 +670,7 @@ static struct object_entry **compute_write_order(void) * Give the objects in the original recency order until * we see a tagged tip. */ + ALLOC_ARRAY(wo, to_pack.nr_objects); for (i = wo_end = 0; i < to_pack.nr_objects; i++) { if (objects[i].tagged) break; @@ -714,7 +728,7 @@ static off_t write_reused_pack(struct sha1file *f) if (!is_pack_valid(reuse_packfile)) die("packfile is invalid: %s", reuse_packfile->pack_name); - fd = git_open_noatime(reuse_packfile->pack_name); + fd = git_open(reuse_packfile->pack_name); if (fd < 0) die_errno("unable to open packfile for reuse: %s", reuse_packfile->pack_name); @@ -758,6 +772,10 @@ static off_t write_reused_pack(struct sha1file *f) 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; @@ -769,7 +787,7 @@ static void write_pack_file(void) if (progress > pack_to_stdout) progress_state = start_progress(_("Writing objects"), nr_result); - written_list = xmalloc(to_pack.nr_objects * sizeof(*written_list)); + ALLOC_ARRAY(written_list, to_pack.nr_objects); write_order = compute_write_order(); do { @@ -812,7 +830,10 @@ static void write_pack_file(void) fixup_pack_header_footer(fd, sha1, pack_tmp_name, nr_written, sha1, offset); close(fd); - write_bitmap_index = 0; + if (write_bitmap_index) { + warning(_(no_split_warning)); + write_bitmap_index = 0; + } } if (!pack_to_stdout) { @@ -827,8 +848,7 @@ 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 { @@ -836,8 +856,7 @@ 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", - pack_tmp_name, strerror(errno)); + warning_errno("failed utime() on %s", pack_tmp_name); } strbuf_addf(&tmpname, "%s-", base_name); @@ -885,24 +904,15 @@ static void write_pack_file(void) written, nr_result); } -static void setup_delta_attr_check(struct git_attr_check *check) -{ - static struct git_attr *attr_delta; - - if (!attr_delta) - attr_delta = git_attr("delta"); - - check[0].attr = attr_delta; -} - static int no_try_delta(const char *path) { - struct git_attr_check check[1]; + static struct attr_check *check; - setup_delta_attr_check(check); - if (git_check_attr(path, ARRAY_SIZE(check), check)) + if (!check) + check = attr_check_initl("delta", NULL); + if (git_check_attr(path, check)) return 0; - if (ATTR_FALSE(check->value)) + if (ATTR_FALSE(check->items[0].value)) return 1; return 0; } @@ -936,29 +946,80 @@ static int have_duplicate_entry(const unsigned char *sha1, return 1; } +static int want_found_object(int exclude, struct packed_git *p) +{ + if (exclude) + return 1; + if (incremental) + return 0; + + /* + * When asked to do --local (do not include an object that appears in a + * pack we borrow from elsewhere) or --honor-pack-keep (do not include + * an object that appears in a pack marked with .keep), finding a pack + * that matches the criteria is sufficient for us to decide to omit it. + * However, even if this pack does not satisfy the criteria, we need to + * make sure no copy of this object appears in _any_ pack that makes us + * to omit the object, so we need to check all the packs. + * + * We can however first check whether these options can possible matter; + * if they do not matter we know we want the object in generated pack. + * Otherwise, we signal "-1" at the end to tell the caller that we do + * not know either way, and it needs to check more packs. + */ + if (!ignore_packed_keep && + (!local || !have_non_local_packs)) + return 1; + + if (local && !p->pack_local) + return 0; + if (ignore_packed_keep && p->pack_local && p->pack_keep) + return 0; + + /* we don't know yet; keep looking for more packs */ + 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. + * If the caller already knows an existing pack it wants to take the object + * from, that is passed in *found_pack and *found_offset; otherwise this + * function finds if there is any pack that has the object and returns the pack + * and its offset in these variables. */ 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; + struct mru_entry *entry; + int want; if (!exclude && local && has_loose_object_nonlocal(sha1)) return 0; - *found_pack = NULL; - *found_offset = 0; + /* + * If we already know the pack object lives in, start checks from that + * pack - in the usual case when neither --local was given nor .keep files + * are present we will determine the answer right now. + */ + if (*found_pack) { + want = want_found_object(exclude, *found_pack); + if (want != -1) + return want; + } + + for (entry = packed_git_mru->head; entry; entry = entry->next) { + struct packed_git *p = entry->item; + off_t offset; + + if (p == *found_pack) + offset = *found_offset; + else + offset = find_pack_entry_one(sha1, p); - 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)) @@ -966,14 +1027,11 @@ static int want_object_in_pack(const unsigned char *sha1, *found_offset = offset; *found_pack = p; } - if (exclude) - return 1; - if (incremental) - return 0; - if (local && !p->pack_local) - return 0; - if (ignore_packed_keep && p->pack_local && p->pack_keep) - return 0; + want = want_found_object(exclude, p); + if (!exclude && want > 0) + mru_mark(packed_git_mru, entry); + if (want != -1) + return want; } } @@ -1014,8 +1072,8 @@ static const char no_closure_warning[] = N_( 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; + struct packed_git *found_pack = NULL; + off_t found_offset = 0; uint32_t index_pos; if (have_duplicate_entry(sha1, exclude, &index_pos)) @@ -1048,6 +1106,9 @@ static int add_object_entry_from_bitmap(const unsigned char *sha1, if (have_duplicate_entry(sha1, 0, &index_pos)) return 0; + if (!want_object_in_pack(sha1, 0, &pack, &offset)) + return 0; + create_object_entry(sha1, type, name_hash, 0, 0, index_pos, pack, offset); display_progress(progress_state, nr_result); @@ -1185,7 +1246,7 @@ 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; @@ -1196,7 +1257,7 @@ 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); @@ -1377,7 +1438,7 @@ static void check_object(struct object_entry *entry) ofs += 1; if (!ofs || MSB(ofs, 7)) { error("delta base offset overflow in pack for %s", - sha1_to_hex(entry->idx.sha1)); + oid_to_hex(&entry->idx.oid)); goto give_up; } c = buf[used_0++]; @@ -1386,7 +1447,7 @@ static void check_object(struct object_entry *entry) ofs = entry->in_pack_offset - ofs; if (ofs <= 0 || ofs >= entry->in_pack_offset) { error("delta base offset out of bound for %s", - sha1_to_hex(entry->idx.sha1)); + oid_to_hex(&entry->idx.oid)); goto give_up; } if (reuse_delta && !entry->preferred_base) { @@ -1443,7 +1504,7 @@ static void check_object(struct object_entry *entry) unuse_pack(&w_curs); } - entry->type = sha1_object_info(entry->idx.sha1, &entry->size); + entry->type = sha1_object_info(entry->idx.oid.hash, &entry->size); /* * The error condition is checked in prepare_pack(). This is * to permit a missing preferred base object to be ignored @@ -1459,7 +1520,7 @@ static int pack_offset_sort(const void *_a, const void *_b) /* avoid filesystem trashing with loose objects */ if (!a->in_pack && !b->in_pack) - return hashcmp(a->idx.sha1, b->idx.sha1); + return oidcmp(&a->idx.oid, &b->idx.oid); if (a->in_pack < b->in_pack) return -1; @@ -1469,6 +1530,171 @@ static int pack_offset_sort(const void *_a, const void *_b) (a->in_pack_offset > b->in_pack_offset); } +/* + * Drop an on-disk delta we were planning to reuse. Naively, this would + * just involve blanking out the "delta" field, but we have to deal + * with some extra book-keeping: + * + * 1. Removing ourselves from the delta_sibling linked list. + * + * 2. Updating our size/type to the non-delta representation. These were + * either not recorded initially (size) or overwritten with the delta type + * (type) when check_object() decided to reuse the delta. + * + * 3. Resetting our delta depth, as we are now a base object. + */ +static void drop_reused_delta(struct object_entry *entry) +{ + struct object_entry **p = &entry->delta->delta_child; + struct object_info oi = OBJECT_INFO_INIT; + + while (*p) { + if (*p == entry) + *p = (*p)->delta_sibling; + else + p = &(*p)->delta_sibling; + } + entry->delta = NULL; + entry->depth = 0; + + oi.sizep = &entry->size; + oi.typep = &entry->type; + if (packed_object_info(entry->in_pack, entry->in_pack_offset, &oi) < 0) { + /* + * We failed to get the info from this pack for some reason; + * fall back to sha1_object_info, which may find another copy. + * And if that fails, the error will be recorded in entry->type + * and dealt with in prepare_pack(). + */ + entry->type = sha1_object_info(entry->idx.oid.hash, + &entry->size); + } +} + +/* + * Follow the chain of deltas from this entry onward, throwing away any links + * that cause us to hit a cycle (as determined by the DFS state flags in + * the entries). + * + * We also detect too-long reused chains that would violate our --depth + * limit. + */ +static void break_delta_chains(struct object_entry *entry) +{ + /* + * The actual depth of each object we will write is stored as an int, + * as it cannot exceed our int "depth" limit. But before we break + * changes based no that limit, we may potentially go as deep as the + * number of objects, which is elsewhere bounded to a uint32_t. + */ + uint32_t total_depth; + struct object_entry *cur, *next; + + for (cur = entry, total_depth = 0; + cur; + cur = cur->delta, total_depth++) { + if (cur->dfs_state == DFS_DONE) { + /* + * We've already seen this object and know it isn't + * part of a cycle. We do need to append its depth + * to our count. + */ + total_depth += cur->depth; + break; + } + + /* + * We break cycles before looping, so an ACTIVE state (or any + * other cruft which made its way into the state variable) + * is a bug. + */ + if (cur->dfs_state != DFS_NONE) + die("BUG: confusing delta dfs state in first pass: %d", + cur->dfs_state); + + /* + * Now we know this is the first time we've seen the object. If + * it's not a delta, we're done traversing, but we'll mark it + * done to save time on future traversals. + */ + if (!cur->delta) { + cur->dfs_state = DFS_DONE; + break; + } + + /* + * Mark ourselves as active and see if the next step causes + * us to cycle to another active object. It's important to do + * this _before_ we loop, because it impacts where we make the + * cut, and thus how our total_depth counter works. + * E.g., We may see a partial loop like: + * + * A -> B -> C -> D -> B + * + * Cutting B->C breaks the cycle. But now the depth of A is + * only 1, and our total_depth counter is at 3. The size of the + * error is always one less than the size of the cycle we + * broke. Commits C and D were "lost" from A's chain. + * + * If we instead cut D->B, then the depth of A is correct at 3. + * We keep all commits in the chain that we examined. + */ + cur->dfs_state = DFS_ACTIVE; + if (cur->delta->dfs_state == DFS_ACTIVE) { + drop_reused_delta(cur); + cur->dfs_state = DFS_DONE; + break; + } + } + + /* + * And now that we've gone all the way to the bottom of the chain, we + * need to clear the active flags and set the depth fields as + * appropriate. Unlike the loop above, which can quit when it drops a + * delta, we need to keep going to look for more depth cuts. So we need + * an extra "next" pointer to keep going after we reset cur->delta. + */ + for (cur = entry; cur; cur = next) { + next = cur->delta; + + /* + * We should have a chain of zero or more ACTIVE states down to + * a final DONE. We can quit after the DONE, because either it + * has no bases, or we've already handled them in a previous + * call. + */ + if (cur->dfs_state == DFS_DONE) + break; + else if (cur->dfs_state != DFS_ACTIVE) + die("BUG: confusing delta dfs state in second pass: %d", + cur->dfs_state); + + /* + * If the total_depth is more than depth, then we need to snip + * the chain into two or more smaller chains that don't exceed + * the maximum depth. Most of the resulting chains will contain + * (depth + 1) entries (i.e., depth deltas plus one base), and + * the last chain (i.e., the one containing entry) will contain + * whatever entries are left over, namely + * (total_depth % (depth + 1)) of them. + * + * Since we are iterating towards decreasing depth, we need to + * decrement total_depth as we go, and we need to write to the + * entry what its final depth will be after all of the + * snipping. Since we're snipping into chains of length (depth + * + 1) entries, the final depth of an entry will be its + * original depth modulo (depth + 1). Any time we encounter an + * entry whose final depth is supposed to be zero, we snip it + * from its delta base, thereby making it so. + */ + cur->depth = (total_depth--) % (depth + 1); + if (!cur->depth) + drop_reused_delta(cur); + + cur->dfs_state = DFS_DONE; + } +} + static void get_object_details(void) { uint32_t i; @@ -1477,7 +1703,7 @@ static void get_object_details(void) 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); + QSORT(sorted_by_offset, to_pack.nr_objects, pack_offset_sort); for (i = 0; i < to_pack.nr_objects; i++) { struct object_entry *entry = sorted_by_offset[i]; @@ -1486,6 +1712,13 @@ static void get_object_details(void) entry->no_try_delta = 1; } + /* + * This must happen in a second pass, since we rely on the delta + * information for the whole list being completed. + */ + for (i = 0; i < to_pack.nr_objects; i++) + break_delta_chains(&to_pack.objects[i]); + free(sorted_by_offset); } @@ -1626,26 +1859,29 @@ static int try_delta(struct unpacked *trg, struct unpacked *src, /* Load data if not already done */ if (!trg->data) { read_lock(); - trg->data = read_sha1_file(trg_entry->idx.sha1, &type, &sz); + trg->data = read_sha1_file(trg_entry->idx.oid.hash, &type, + &sz); read_unlock(); if (!trg->data) die("object %s cannot be read", - sha1_to_hex(trg_entry->idx.sha1)); + oid_to_hex(&trg_entry->idx.oid)); if (sz != trg_size) die("object %s inconsistent object length (%lu vs %lu)", - sha1_to_hex(trg_entry->idx.sha1), sz, trg_size); + oid_to_hex(&trg_entry->idx.oid), sz, + trg_size); *mem_usage += sz; } if (!src->data) { read_lock(); - src->data = read_sha1_file(src_entry->idx.sha1, &type, &sz); + src->data = read_sha1_file(src_entry->idx.oid.hash, &type, + &sz); read_unlock(); if (!src->data) { if (src_entry->preferred_base) { static int warned = 0; if (!warned++) warning("object %s cannot be read", - sha1_to_hex(src_entry->idx.sha1)); + oid_to_hex(&src_entry->idx.oid)); /* * Those objects are not included in the * resulting pack. Be resilient and ignore @@ -1655,11 +1891,12 @@ static int try_delta(struct unpacked *trg, struct unpacked *src, return 0; } die("object %s cannot be read", - sha1_to_hex(src_entry->idx.sha1)); + oid_to_hex(&src_entry->idx.oid)); } if (sz != src_size) die("object %s inconsistent object length (%lu vs %lu)", - sha1_to_hex(src_entry->idx.sha1), sz, src_size); + oid_to_hex(&src_entry->idx.oid), sz, + src_size); *mem_usage += sz; } if (!src->index) { @@ -2097,14 +2334,43 @@ 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 void add_tag_chain(const struct object_id *oid) { - unsigned char peeled[20]; + struct tag *tag; + + /* + * We catch duplicates already in add_object_entry(), but we'd + * prefer to do this extra check to avoid having to parse the + * tag at all if we already know that it's being packed (e.g., if + * it was included via bitmaps, we would not have parsed it + * previously). + */ + if (packlist_find(&to_pack, oid->hash, NULL)) + return; + + tag = lookup_tag(oid); + while (1) { + if (!tag || parse_tag(tag) || !tag->tagged) + die("unable to pack objects reachable from tag %s", + oid_to_hex(oid)); + + add_object_entry(tag->object.oid.hash, OBJ_TAG, NULL, 0); + + if (tag->tagged->type != OBJ_TAG) + return; + + tag = (struct tag *)tag->tagged; + } +} + +static int add_ref_tag(const char *path, const struct object_id *oid, int flag, void *cb_data) +{ + struct object_id peeled; if (starts_with(path, "refs/tags/") && /* is a tag? */ - !peel_ref(path, peeled) && /* peelable? */ - packlist_find(&to_pack, peeled, NULL)) /* object packed? */ - add_object_entry(sha1, OBJ_TAG, NULL, 0); + !peel_ref(path, peeled.hash) && /* peelable? */ + packlist_find(&to_pack, peeled.hash, NULL)) /* object packed? */ + add_tag_chain(oid); return 0; } @@ -2129,7 +2395,7 @@ static void prepare_pack(int window, int depth) if (!to_pack.nr_objects || !window || !depth) return; - delta_list = xmalloc(to_pack.nr_objects * sizeof(*delta_list)); + ALLOC_ARRAY(delta_list, to_pack.nr_objects); nr_deltas = n = 0; for (i = 0; i < to_pack.nr_objects; i++) { @@ -2151,7 +2417,7 @@ static void prepare_pack(int window, int depth) nr_deltas++; if (entry->type < 0) die("unable to get type of object %s", - sha1_to_hex(entry->idx.sha1)); + oid_to_hex(&entry->idx.oid)); } else { if (entry->type < 0) { /* @@ -2170,7 +2436,7 @@ static void prepare_pack(int window, int depth) if (progress) progress_state = start_progress(_("Compressing objects"), nr_deltas); - qsort(delta_list, n, sizeof(*delta_list), type_size_sort); + QSORT(delta_list, n, type_size_sort); ll_find_deltas(delta_list, n, window+1, depth, &nr_done); stop_progress(&progress_state); if (nr_done != nr_deltas) @@ -2193,16 +2459,6 @@ static int git_pack_config(const char *k, const char *v, void *cb) depth = git_config_int(k, v); return 0; } - if (!strcmp(k, "pack.compression")) { - int level = git_config_int(k, v); - 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; - pack_compression_seen = 1; - return 0; - } if (!strcmp(k, "pack.deltacachesize")) { max_delta_cache_size = git_config_int(k, v); return 0; @@ -2218,7 +2474,7 @@ static int git_pack_config(const char *k, const char *v, void *cb) write_bitmap_options &= ~BITMAP_OPT_HASH_CACHE; } if (!strcmp(k, "pack.usebitmaps")) { - use_bitmap_index = git_config_bool(k, v); + use_bitmap_index_default = git_config_bool(k, v); return 0; } if (!strcmp(k, "pack.threads")) { @@ -2227,8 +2483,10 @@ static int git_pack_config(const char *k, const char *v, void *cb) die("invalid number of threads specified (%d)", delta_search_threads); #ifdef NO_PTHREADS - if (delta_search_threads != 1) + if (delta_search_threads != 1) { warning("no threads support, ignoring %s", k); + delta_search_threads = 0; + } #endif return 0; } @@ -2277,33 +2535,23 @@ 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 { @@ -2319,7 +2567,7 @@ 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++; } @@ -2338,7 +2586,7 @@ 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) @@ -2372,16 +2620,41 @@ static void add_objects_in_unpacked_packs(struct rev_info *revs) } if (in_pack.nr) { - qsort(in_pack.array, in_pack.nr, sizeof(in_pack.array[0]), - ofscmp); + QSORT(in_pack.array, in_pack.nr, 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); } +static int add_loose_object(const struct object_id *oid, const char *path, + void *data) +{ + enum object_type type = sha1_object_info(oid->hash, NULL); + + if (type < 0) { + warning("loose object at %s could not be examined", path); + return 0; + } + + add_object_entry(oid->hash, type, "", 0); + return 0; +} + +/* + * We actually don't even have to worry about reachability here. + * add_object_entry will weed out duplicates, so we just add every + * loose object we find. + */ +static void add_unreachable_loose_objects(void) +{ + for_each_loose_file_in_objdir(get_object_directory(), + add_loose_object, + NULL, NULL, NULL); +} + static int has_sha1_pack_kept_or_nonlocal(const unsigned char *sha1) { static struct packed_git *last_found = (void *)1; @@ -2412,16 +2685,16 @@ static int has_sha1_pack_kept_or_nonlocal(const unsigned char *sha1) * * This is filled by get_object_list. */ -static struct sha1_array recent_objects; +static struct oid_array recent_objects; -static int loosened_object_can_be_discarded(const unsigned char *sha1, - unsigned long mtime) +static int loosened_object_can_be_discarded(const struct object_id *oid, + timestamp_t mtime) { if (!unpack_unreachable_expiration) return 0; if (mtime > unpack_unreachable_expiration) return 0; - if (sha1_array_lookup(&recent_objects, sha1) >= 0) + if (oid_array_lookup(&recent_objects, oid) >= 0) return 0; return 1; } @@ -2430,7 +2703,7 @@ static void loosen_unused_packed_objects(struct rev_info *revs) { struct packed_git *p; uint32_t i; - const unsigned char *sha1; + struct object_id oid; for (p = packed_git; p; p = p->next) { if (!p->pack_local || p->pack_keep) @@ -2440,24 +2713,28 @@ static void loosen_unused_packed_objects(struct rev_info *revs) die("cannot open pack index"); for (i = 0; i < p->num_objects; i++) { - sha1 = nth_packed_object_sha1(p, i); - 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)) + nth_packed_object_oid(&oid, p, i); + if (!packlist_find(&to_pack, oid.hash, NULL) && + !has_sha1_pack_kept_or_nonlocal(oid.hash) && + !loosened_object_can_be_discarded(&oid, p->mtime)) + if (force_object_loose(oid.hash, 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. + * This tracks any options which pack-reuse code expects to be on, or 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; + return pack_to_stdout && + allow_ofs_delta && + !ignore_packed_keep && + (!local || !have_non_local_packs) && + !incremental; } static int get_object_list_from_bitmap(struct rev_info *revs) @@ -2480,16 +2757,15 @@ static int get_object_list_from_bitmap(struct rev_info *revs) } static void record_recent_object(struct object *obj, - const struct name_path *path, - const char *last, + const char *name, void *data) { - sha1_array_append(&recent_objects, obj->sha1); + oid_array_append(&recent_objects, &obj->oid); } static void record_recent_commit(struct commit *commit, void *data) { - sha1_array_append(&recent_objects, commit->object.sha1); + oid_array_append(&recent_objects, &commit->object.oid); } static void get_object_list(int ac, const char **av) @@ -2518,10 +2794,10 @@ static void get_object_list(int ac, const char **av) continue; } if (starts_with(line, "--shallow ")) { - unsigned char sha1[20]; - if (get_sha1_hex(line + 10, sha1)) + struct object_id oid; + if (get_oid_hex(line + 10, &oid)) die("not an SHA-1 '%s'", line + 10); - register_shallow(sha1); + register_shallow(&oid); use_bitmap_index = 0; continue; } @@ -2552,10 +2828,12 @@ static void get_object_list(int ac, const char **av) if (keep_unreachable) add_objects_in_unpacked_packs(&revs); + if (pack_loose_unreachable) + add_unreachable_loose_objects(); if (unpack_unreachable) loosen_unused_packed_objects(&revs); - sha1_array_clear(&recent_objects); + oid_array_clear(&recent_objects); } static int option_parse_index_version(const struct option *opt, @@ -2588,23 +2866,6 @@ static int option_parse_unpack_unreachable(const struct option *opt, return 0; } -static int option_parse_ulong(const struct option *opt, - const char *arg, int unset) -{ - if (unset) - die(_("option %s does not accept negative form"), - opt->long_name); - - if (!git_parse_ulong(arg, opt->value)) - die(_("unable to parse value '%s' for option %s"), - arg, opt->long_name); - return 0; -} - -#define OPT_ULONG(s, l, v, h) \ - { OPTION_CALLBACK, (s), (l), (v), "n", (h), \ - PARSE_OPT_NONEG, option_parse_ulong } - int cmd_pack_objects(int argc, const char **argv, const char *prefix) { int use_internal_rev_list = 0; @@ -2627,16 +2888,16 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) { 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_ULONG(0, "max-pack-size", &pack_size_limit, - N_("maximum size of each output pack file")), + 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_ULONG(0, "window-memory", &window_memory_limit, - N_("limit pack window by memory in addition to object limit")), + 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, @@ -2669,6 +2930,8 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) N_("include tag objects that refer to objects to be packed")), OPT_BOOL(0, "keep-unreachable", &keep_unreachable, N_("keep unreachable objects")), + OPT_BOOL(0, "pack-loose-unreachable", &pack_loose_unreachable, + N_("pack loose unreachable objects")), { OPTION_CALLBACK, 0, "unpack-unreachable", NULL, N_("time"), N_("unpack unreachable objects newer than <time>"), PARSE_OPT_OPTARG, option_parse_unpack_unreachable }, @@ -2693,8 +2956,6 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) reset_pack_idx_option(&pack_idx_opts); git_config(git_pack_config, NULL); - if (!pack_compression_seen && core_compression_seen) - pack_compression_level = core_compression_level; progress = isatty(2); argc = parse_options(argc, argv, prefix, pack_objects_options, @@ -2764,7 +3025,23 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) 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()) + /* + * "soft" reasons not to use bitmaps - for on-disk repack by default we want + * + * - to produce good pack (with bitmap index not-yet-packed objects are + * packed in suboptimal order). + * + * - to use more robust pack-generation codepath (avoiding possible + * bugs in bitmap code and possible bitmap index corruption). + */ + if (!pack_to_stdout) + use_bitmap_index_default = 0; + + if (use_bitmap_index < 0) + use_bitmap_index = use_bitmap_index_default; + + /* "hard" reasons not to use bitmaps; these just won't work at all */ + if (!use_internal_rev_list || (!pack_to_stdout && write_bitmap_index) || is_repository_shallow()) use_bitmap_index = 0; if (pack_to_stdout || !rev_list_all) @@ -2774,6 +3051,28 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) progress = 2; prepare_packed_git(); + if (ignore_packed_keep) { + struct packed_git *p; + for (p = packed_git; p; p = p->next) + if (p->pack_local && p->pack_keep) + break; + if (!p) /* no keep-able packs found */ + ignore_packed_keep = 0; + } + if (local) { + /* + * unlike ignore_packed_keep above, we do not want to + * unset "local" based on looking at packs, as it + * also covers non-local objects + */ + struct packed_git *p; + for (p = packed_git; p; p = p->next) { + if (!p->pack_local) { + have_non_local_packs = 1; + break; + } + } + } if (progress) progress_state = start_progress(_("Counting objects"), 0); diff --git a/builtin/pack-redundant.c b/builtin/pack-redundant.c index d0532f66b1..cb1df1c761 100644 --- a/builtin/pack-redundant.c +++ b/builtin/pack-redundant.c @@ -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]); } @@ -442,6 +442,7 @@ static void minimize(struct pack_list **min) /* return if there are no objects missing from the unique set */ if (missing->size == 0) { *min = unique; + free(missing); return; } diff --git a/builtin/pack-refs.c b/builtin/pack-refs.c index 39f9a55d16..b106a392a4 100644 --- a/builtin/pack-refs.c +++ b/builtin/pack-refs.c @@ -17,5 +17,5 @@ int cmd_pack_refs(int argc, const char **argv, const char *prefix) }; if (parse_options(argc, argv, prefix, opts, pack_refs_usage, 0)) usage_with_options(pack_refs_usage, opts); - return pack_refs(flags); + return refs_pack_refs(get_main_ref_store(), flags); } diff --git a/builtin/patch-id.c b/builtin/patch-id.c index 77db8739b5..81552e02e4 100644 --- a/builtin/patch-id.c +++ b/builtin/patch-id.c @@ -1,14 +1,14 @@ #include "builtin.h" -static void flush_current_id(int patchlen, unsigned char *id, unsigned char *result) +static void flush_current_id(int patchlen, struct object_id *id, struct object_id *result) { char name[50]; if (!patchlen) return; - memcpy(name, sha1_to_hex(id), 41); - printf("%s %s\n", sha1_to_hex(result), name); + 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) @@ -53,23 +53,23 @@ static int scan_hunk_header(const char *p, int *p_before, int *p_after) return 1; } -static void flush_one_hunk(unsigned char *result, git_SHA_CTX *ctx) +static void flush_one_hunk(struct object_id *result, git_SHA_CTX *ctx) { - unsigned char hash[20]; + unsigned char hash[GIT_MAX_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 < 20; ++i) { - carry += result[i] + hash[i]; - result[i] = 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(unsigned char *next_sha1, unsigned char *result, +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; @@ -77,36 +77,33 @@ static int get_one_patchid(unsigned char *next_sha1, unsigned char *result, git_SHA_CTX ctx; git_SHA1_Init(&ctx); - hashclr(result); + 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; @@ -114,14 +111,14 @@ static int get_one_patchid(unsigned char *next_sha1, unsigned char *result, /* 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. */ @@ -143,7 +140,7 @@ static int get_one_patchid(unsigned char *next_sha1, unsigned char *result, } if (!found_next) - hashclr(next_sha1); + oidclr(next_oid); flush_one_hunk(result, &ctx); @@ -152,20 +149,20 @@ static int get_one_patchid(unsigned char *next_sha1, unsigned char *result, static void generate_id_list(int stable) { - unsigned char sha1[20], n[20], result[20]; + struct object_id oid, n, result; int patchlen; struct strbuf line_buf = STRBUF_INIT; - hashclr(sha1); + oidclr(&oid); while (!feof(stdin)) { - patchlen = get_one_patchid(n, result, &line_buf, stable); - flush_current_id(patchlen, sha1, result); - 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 [--stable | --unstable] < 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) { diff --git a/builtin/prune-packed.c b/builtin/prune-packed.c index 7cf900ea07..c026299e78 100644 --- a/builtin/prune-packed.c +++ b/builtin/prune-packed.c @@ -19,12 +19,12 @@ static int prune_subdir(int nr, const char *path, void *data) return 0; } -static int prune_object(const unsigned char *sha1, const char *path, +static int prune_object(const struct object_id *oid, const char *path, void *data) { int *opts = data; - if (!has_sha1_pack(sha1)) + if (!has_sha1_pack(oid->hash)) return 0; if (*opts & PRUNE_PACKED_DRY_RUN) diff --git a/builtin/prune.c b/builtin/prune.c index 17094ad954..f0e2bff04c 100644 --- a/builtin/prune.c +++ b/builtin/prune.c @@ -6,7 +6,6 @@ #include "reachable.h" #include "parse-options.h" #include "progress.h" -#include "dir.h" static const char * const prune_usage[] = { N_("git prune [-n] [-v] [--expire <time>] [--] [<head>...]"), @@ -14,7 +13,7 @@ static const char * const prune_usage[] = { }; static int show_only; static int verbose; -static unsigned long expire; +static timestamp_t expire; static int show_progress = -1; static int prune_tmp_file(const char *fullpath) @@ -31,7 +30,7 @@ static int prune_tmp_file(const char *fullpath) return 0; } -static int prune_object(const unsigned char *sha1, const char *fullpath, +static int prune_object(const struct object_id *oid, const char *fullpath, void *data) { struct stat st; @@ -40,7 +39,7 @@ static int prune_object(const unsigned char *sha1, const char *fullpath, * Do we know about this object? * It must have been reachable */ - if (lookup_object(sha1)) + if (lookup_object(oid->hash)) return 0; if (lstat(fullpath, &st)) { @@ -51,8 +50,8 @@ static int prune_object(const unsigned char *sha1, const char *fullpath, if (st.st_mtime > expire) return 0; if (show_only || verbose) { - enum object_type type = sha1_object_info(sha1, NULL); - printf("%s %s\n", sha1_to_hex(sha1), + enum object_type type = sha1_object_info(oid->hash, NULL); + printf("%s %s\n", oid_to_hex(oid), (type > 0) ? typename(type) : "unknown"); } if (!show_only) @@ -112,19 +111,24 @@ int cmd_prune(int argc, const char **argv, const char *prefix) }; char *s; - expire = ULONG_MAX; + expire = TIME_MAX; save_commit_buffer = 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]; + struct object_id oid; const char *name = *argv++; - if (!get_sha1(name, sha1)) { - struct object *object = parse_object_or_die(sha1, name); + if (!get_oid(name, &oid)) { + struct object *object = parse_object_or_die(&oid, + name); add_pending_object(&revs, object, ""); } else diff --git a/builtin/pull.c b/builtin/pull.c new file mode 100644 index 0000000000..69417e4f36 --- /dev/null +++ b/builtin/pull.c @@ -0,0 +1,882 @@ +/* + * 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" +#include "wt-status.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); +} + +/** + * Appends merge candidates from FETCH_HEAD that are not marked not-for-merge + * into merge_heads. + */ +static void get_merge_heads(struct oid_array *merge_heads) +{ + const char *filename = git_path_fetch_head(); + FILE *fp; + struct strbuf sb = STRBUF_INIT; + struct object_id oid; + + fp = xfopen(filename, "r"); + while (strbuf_getline_lf(&sb, fp) != EOF) { + if (get_oid_hex(sb.buf, &oid)) + 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 */ + oid_array_append(merge_heads, &oid); + } + 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 struct object_id *merge_head, + const struct object_id *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_oid, merge_head, 0)) + return 1; + + if (update_ref("initial pull", "HEAD", merge_head->hash, curr_head->hash, 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(struct object_id *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_oid_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(struct object_id *merge_base, + const struct object_id *curr_head, + const struct object_id *merge_head, + const struct object_id *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_oid(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; + + oidcpy(merge_base, &result->item->object.oid); + 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 struct object_id *curr_head, + const struct object_id *merge_head, + const struct object_id *fork_point) +{ + int ret; + struct object_id oct_merge_base; + struct argv_array args = ARGV_ARRAY_INIT; + + if (!get_octopus_merge_base(&oct_merge_base, curr_head, merge_head, fork_point)) + if (!is_null_oid(fork_point) && !oidcmp(&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"); + if (opt_verify_signatures && + !strcmp(opt_verify_signatures, "--verify-signatures")) + warning(_("ignoring --verify-signatures for rebase")); + + argv_array_push(&args, "--onto"); + argv_array_push(&args, oid_to_hex(merge_head)); + + if (fork_point && !is_null_oid(fork_point)) + argv_array_push(&args, oid_to_hex(fork_point)); + else + argv_array_push(&args, oid_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 oid_array merge_heads = OID_ARRAY_INIT; + struct object_id orig_head, curr_head; + struct object_id rebase_fork_point; + int autostash; + + 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_oid("HEAD", &orig_head)) + oidclr(&orig_head); + + if (!opt_rebase && opt_autostash != -1) + die(_("--[no-]autostash option is only valid with --rebase.")); + + autostash = config_autostash; + if (opt_rebase) { + if (opt_autostash != -1) + autostash = opt_autostash; + + if (is_null_oid(&orig_head) && !is_cache_unborn()) + die(_("Updating an unborn branch with changes added to the index.")); + + if (!autostash) + require_clean_work_tree(N_("pull with rebase"), + _("please commit or stash them."), 1, 0); + + if (get_rebase_fork_point(&rebase_fork_point, repo, *refspecs)) + oidclr(&rebase_fork_point); + } + + if (run_fetch(repo, refspecs)) + return 1; + + if (opt_dry_run) + return 0; + + if (get_oid("HEAD", &curr_head)) + oidclr(&curr_head); + + if (!is_null_oid(&orig_head) && !is_null_oid(&curr_head) && + oidcmp(&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."), oid_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."), oid_to_hex(&orig_head)); + } + + get_merge_heads(&merge_heads); + + if (!merge_heads.nr) + die_no_merge_candidates(repo, refspecs); + + if (is_null_oid(&orig_head)) { + if (merge_heads.nr > 1) + die(_("Cannot merge multiple branches into empty head.")); + return pull_into_void(merge_heads.oid, &curr_head); + } + if (opt_rebase && merge_heads.nr > 1) + die(_("Cannot rebase onto multiple branches.")); + + if (opt_rebase) { + if (!autostash) { + struct commit_list *list = NULL; + struct commit *merge_head, *head; + + head = lookup_commit_reference(&orig_head); + commit_list_insert(head, &list); + merge_head = lookup_commit_reference(&merge_heads.oid[0]); + if (is_descendant_of(merge_head, list)) { + /* we can fast-forward this without invoking rebase */ + opt_ff = "--ff-only"; + return run_merge(); + } + } + return run_rebase(&curr_head, merge_heads.oid, &rebase_fork_point); + } else { + return run_merge(); + } +} diff --git a/builtin/push.c b/builtin/push.c index 57c138bd7b..258648d5fd 100644 --- a/builtin/push.c +++ b/builtin/push.c @@ -9,6 +9,8 @@ #include "transport.h" #include "parse-options.h" #include "submodule.h" +#include "submodule-config.h" +#include "send-pack.h" static const char * const push_usage[] = { N_("git push [<options>] [<repository> [<refspec>...]]"), @@ -20,6 +22,8 @@ static int deleterefs; static const char *receivepack; static int verbosity; static int progress = -1; +static int recurse_submodules = RECURSE_SUBMODULES_DEFAULT; +static enum transport_family family; static struct push_cas_option cas; @@ -190,46 +194,18 @@ static void setup_push_upstream(struct remote *remote, struct branch *branch, die_push_simple(branch, remote); } - strbuf_addf(&refspec, "%s:%s", branch->name, branch->merge[0]->src); + strbuf_addf(&refspec, "%s:%s", branch->refname, branch->merge[0]->src); add_refspec(refspec.buf); } static void setup_push_current(struct remote *remote, struct branch *branch) { + struct strbuf refspec = STRBUF_INIT; + if (!branch) die(_(message_detached_head_die), remote->name); - add_refspec(branch->name); -} - -static char warn_unspecified_push_default_msg[] = -N_("push.default is unset; its implicit value has changed in\n" - "Git 2.0 from 'matching' to 'simple'. To squelch this message\n" - "and maintain the traditional behavior, use:\n" - "\n" - " git config --global push.default matching\n" - "\n" - "To squelch this message and adopt the new behavior now, use:\n" - "\n" - " git config --global push.default simple\n" - "\n" - "When push.default is set to 'matching', git will push local branches\n" - "to the remote branches that already exist with the same name.\n" - "\n" - "Since Git 2.0, Git defaults to the more conservative 'simple'\n" - "behavior, which only pushes the current branch to the corresponding\n" - "remote branch that 'git pull' uses to update the current branch.\n" - "\n" - "See 'git help config' and search for 'push.default' for further information.\n" - "(the 'simple' mode was introduced in Git 1.7.11. Use the similar mode\n" - "'current' instead of 'simple' if you sometimes use older versions of Git)"); - -static void warn_unspecified_push_default_configuration(void) -{ - static int warn_once; - - if (warn_once++) - return; - warning("%s\n", _(warn_unspecified_push_default_msg)); + strbuf_addf(&refspec, "%s:%s", branch->refname, branch->refname); + add_refspec(refspec.buf); } static int is_workflow_triangular(struct remote *remote) @@ -250,9 +226,6 @@ static void setup_default_push_refspecs(struct remote *remote) break; case PUSH_DEFAULT_UNSPECIFIED: - warn_unspecified_push_default_configuration(); - /* fallthru */ - case PUSH_DEFAULT_SIMPLE: if (triangular) setup_push_current(remote, branch); @@ -343,6 +316,7 @@ static int push_with_options(struct transport *transport, int flags) unsigned int reject_reasons; transport_set_verbosity(transport, verbosity, progress); + transport->family = family; if (receivepack) transport_set_option(transport, @@ -382,7 +356,8 @@ static int push_with_options(struct transport *transport, int flags) return 1; } -static int do_push(const char *repo, int flags) +static int do_push(const char *repo, int flags, + const struct string_list *push_options) { int i, errs; struct remote *remote = pushremote_get(repo); @@ -405,6 +380,9 @@ static int do_push(const char *repo, int flags) if (remote->mirror) flags |= (TRANSPORT_PUSH_MIRROR|TRANSPORT_PUSH_FORCE); + if (push_options->nr) + flags |= TRANSPORT_PUSH_OPTIONS; + if ((flags & TRANSPORT_PUSH_ALL) && refspec) { if (!strcmp(*refspec, "refs/tags/*")) return error(_("--all and --tags are incompatible")); @@ -435,13 +413,16 @@ static int do_push(const char *repo, int flags) for (i = 0; i < url_nr; i++) { struct transport *transport = transport_get(remote, url[i]); + if (flags & TRANSPORT_PUSH_OPTIONS) + transport->push_options = push_options; if (push_with_options(transport, flags)) errs++; } } else { struct transport *transport = transport_get(remote, NULL); - + if (flags & TRANSPORT_PUSH_OPTIONS) + transport->push_options = push_options; if (push_with_options(transport, flags)) errs++; } @@ -451,26 +432,36 @@ 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; + int *recurse_submodules = opt->value; - if (*flags & (TRANSPORT_RECURSE_SUBMODULES_CHECK | - TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND)) - die("%s can only be used once.", opt->long_name); - - if (arg) { - if (!strcmp(arg, "check")) - *flags |= TRANSPORT_RECURSE_SUBMODULES_CHECK; - else if (!strcmp(arg, "on-demand")) - *flags |= TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND; - else - die("bad %s argument: %s", opt->long_name, arg); - } else - die("option %s needs an argument (check|on-demand)", - opt->long_name); + 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; @@ -486,6 +477,31 @@ static int git_push_config(const char *k, const char *v, void *cb) 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); + } else if (!strcmp(k, "submodule.recurse")) { + int val = git_config_bool(k, v) ? + RECURSE_SUBMODULES_ON_DEMAND : RECURSE_SUBMODULES_OFF; + recurse_submodules = val; } return git_default_config(k, v, NULL); @@ -495,15 +511,19 @@ 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 string_list push_options = STRING_LIST_INIT_DUP; + const struct string_list_item *item; + struct option options[] = { OPT__VERBOSITY(&verbosity), 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_BOOL( 0, "delete", &deleterefs, N_("delete refs")), + 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), @@ -512,7 +532,7 @@ int cmd_push(int argc, const char **argv, const char *prefix) 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", &flags, "check|on-demand", + { 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_BOOL( 0 , "thin", &thin, N_("use thin pack")), @@ -526,20 +546,35 @@ int cmd_push(int argc, const char **argv, const char *prefix) 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), - OPT_BIT(0, "signed", &flags, N_("GPG sign the push"), TRANSPORT_PUSH_CERT), + { 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_STRING_LIST('o', "push-option", &push_options, N_("server-specific"), N_("option to transmit")), + 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_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; + else if (recurse_submodules == RECURSE_SUBMODULES_ONLY) + flags |= TRANSPORT_RECURSE_SUBMODULES_ONLY; + if (tags) add_refspec("refs/tags/*"); @@ -548,7 +583,12 @@ int cmd_push(int argc, const char **argv, const char *prefix) set_refspecs(argv + 1, argc - 1, repo); } - rc = do_push(repo, flags); + for_each_string_list_item(item, &push_options) + if (strchr(item->string, '\n')) + die(_("push options must not have new line characters")); + + rc = do_push(repo, flags, &push_options); + string_list_clear(&push_options, 0); if (rc == -1) usage_with_options(push_usage, options); else diff --git a/builtin/read-tree.c b/builtin/read-tree.c index 43b47f72f1..5bfd4c9f76 100644 --- a/builtin/read-tree.c +++ b/builtin/read-tree.c @@ -15,18 +15,20 @@ #include "builtin.h" #include "parse-options.h" #include "resolve-undo.h" +#include "submodule.h" +#include "submodule-config.h" static int nr_trees; static int read_empty; static struct tree *trees[MAX_UNPACK_TREES]; -static int list_tree(unsigned char *sha1) +static int list_tree(struct object_id *oid) { struct tree *tree; if (nr_trees >= MAX_UNPACK_TREES) die("I cannot read more than %d trees", MAX_UNPACK_TREES); - tree = parse_tree_indirect(sha1); + tree = parse_tree_indirect(oid); if (!tree) return -1; trees[nr_trees++] = tree; @@ -34,7 +36,7 @@ static int list_tree(unsigned char *sha1) } static const char * const read_tree_usage[] = { - 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>]])"), + 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 }; @@ -78,7 +80,7 @@ static void debug_stage(const char *label, const struct cache_entry *ce, else printf("%06o #%d %s %.8s\n", ce->ce_mode, ce_stage(ce), ce->name, - sha1_to_hex(ce->sha1)); + oid_to_hex(&ce->oid)); } static int debug_merge(const struct cache_entry * const *stages, @@ -90,18 +92,26 @@ static int debug_merge(const struct cache_entry * const *stages, 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; } +static int git_read_tree_config(const char *var, const char *value, void *cb) +{ + if (!strcmp(var, "submodule.recurse")) + return git_default_submodule_config(var, value, cb); + + return git_default_config(var, value, cb); +} + static struct lock_file lock_file; int cmd_read_tree(int argc, const char **argv, const char *unused_prefix) { int i, stage = 0; - unsigned char sha1[20]; + struct object_id oid; struct tree_desc t[MAX_UNPACK_TREES]; struct unpack_trees_options opts; int prefix_set = 0; @@ -109,34 +119,37 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix) { 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, - N_("only empty the index"), 1), + OPT_BOOL(0, "empty", &read_empty, + N_("only empty the index")), OPT__VERBOSE(&opts.verbose_update, N_("be verbose")), OPT_GROUP(N_("Merging")), - OPT_SET_INT('m', NULL, &opts.merge, - N_("perform a merge in addition to a read"), 1), - OPT_SET_INT(0, "trivial", &opts.trivial_merges_only, - N_("3-way merge if no file level merging required"), 1), - OPT_SET_INT(0, "aggressive", &opts.aggressive, - N_("3-way merge in presence of adds and removes"), 1), - OPT_SET_INT(0, "reset", &opts.reset, - N_("same as -m, but discard unmerged entries"), 1), + OPT_BOOL('m', NULL, &opts.merge, + N_("perform a merge in addition to a read")), + OPT_BOOL(0, "trivial", &opts.trivial_merges_only, + N_("3-way merge if no file level merging required")), + OPT_BOOL(0, "aggressive", &opts.aggressive, + N_("3-way merge in presence of adds and removes")), + OPT_BOOL(0, "reset", &opts.reset, + N_("same as -m, but discard unmerged entries")), { 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, - N_("update working tree with merge result"), 1), + OPT_BOOL('u', NULL, &opts.update, + N_("update working tree with merge result")), { OPTION_CALLBACK, 0, "exclude-per-directory", &opts, 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, - N_("don't check the working tree after merging"), 1), + OPT_BOOL('i', NULL, &opts.index_only, + N_("don't check the working tree after merging")), 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, - N_("skip applying sparse checkout filter"), 1), - OPT_SET_INT(0, "debug-unpack", &opts.debug_unpack, - N_("debug unpack-trees"), 1), + OPT_BOOL(0, "no-sparse-checkout", &opts.skip_sparse_checkout, + N_("skip applying sparse checkout filter")), + OPT_BOOL(0, "debug-unpack", &opts.debug_unpack, + N_("debug unpack-trees")), + { OPTION_CALLBACK, 0, "recurse-submodules", NULL, + "checkout", "control recursive updating of submodules", + PARSE_OPT_OPTARG, option_parse_recurse_submodules_worktree_updater }, OPT_END() }; @@ -145,12 +158,14 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix) opts.src_index = &the_index; opts.dst_index = &the_index; - git_config(git_default_config, NULL); + git_config(git_read_tree_config, NULL); argc = parse_options(argc, argv, unused_prefix, read_tree_options, read_tree_usage, 0); - hold_locked_index(&lock_file, 1); + load_submodule_cache(); + + hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR); prefix_set = opts.prefix ? 1 : 0; if (1 < opts.merge + opts.reset + prefix_set) @@ -175,13 +190,13 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix) for (i = 0; i < argc; i++) { const char *arg = argv[i]; - if (get_sha1(arg, sha1)) + if (get_oid(arg, &oid)) die("Not a valid object name %s", arg); - if (list_tree(sha1) < 0) + if (list_tree(&oid) < 0) die("failed to unpack tree object %s", arg); stage++; } - if (nr_trees == 0 && !read_empty) + if (!nr_trees && !read_empty && !opts.merge) warning("read-tree: emptying the index with no arguments is deprecated; use --empty"); else if (nr_trees > 0 && read_empty) die("passing trees as arguments contradicts --empty"); @@ -197,9 +212,10 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix) setup_work_tree(); if (opts.merge) { - if (stage < 2) - die("just how do you expect me to merge %d trees?", stage-1); switch (stage - 1) { + case 0: + die("you must specify at least one tree to merge"); + break; case 1: opts.fn = opts.prefix ? bind_merge : oneway_merge; break; diff --git a/builtin/rebase--helper.c b/builtin/rebase--helper.c new file mode 100644 index 0000000000..ca1ebb2fa1 --- /dev/null +++ b/builtin/rebase--helper.c @@ -0,0 +1,40 @@ +#include "builtin.h" +#include "cache.h" +#include "parse-options.h" +#include "sequencer.h" + +static const char * const builtin_rebase_helper_usage[] = { + N_("git rebase--helper [<options>]"), + NULL +}; + +int cmd_rebase__helper(int argc, const char **argv, const char *prefix) +{ + struct replay_opts opts = REPLAY_OPTS_INIT; + enum { + CONTINUE = 1, ABORT + } command = 0; + struct option options[] = { + OPT_BOOL(0, "ff", &opts.allow_ff, N_("allow fast-forward")), + OPT_CMDMODE(0, "continue", &command, N_("continue rebase"), + CONTINUE), + OPT_CMDMODE(0, "abort", &command, N_("abort rebase"), + ABORT), + OPT_END() + }; + + git_config(git_default_config, NULL); + + opts.action = REPLAY_INTERACTIVE_REBASE; + opts.allow_ff = 1; + opts.allow_empty = 1; + + argc = parse_options(argc, argv, NULL, options, + builtin_rebase_helper_usage, PARSE_OPT_KEEP_ARGV0); + + if (command == CONTINUE && argc == 1) + return !!sequencer_continue(&opts); + if (command == ABORT && argc == 1) + return !!sequencer_remove_state(&opts); + usage_with_options(builtin_rebase_helper_usage, options); +} diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c index 5292bb5a50..b1706a5731 100644 --- a/builtin/receive-pack.c +++ b/builtin/receive-pack.c @@ -19,8 +19,14 @@ #include "tag.h" #include "gpg-interface.h" #include "sigchain.h" +#include "fsck.h" +#include "tmp-objdir.h" +#include "oidset.h" -static const char receive_pack_usage[] = "git receive-pack <git-dir>"; +static const char * const receive_pack_usage[] = { + N_("git receive-pack <git-dir>"), + NULL +}; enum deny_action { DENY_UNCONFIGURED, @@ -36,18 +42,22 @@ 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 advertise_push_options; static int unpack_limit = 100; +static off_t max_input_size; static int report_status; static int use_sideband; static int use_atomic; +static int use_push_options; static int quiet; static int prefer_ofs_delta = 1; static int auto_update_server_info; static int auto_gc = 1; -static int fix_thin = 1; +static int reject_thin; static int stateless_rpc; static const char *service_dir; static const char *head_name; @@ -68,9 +78,18 @@ 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 timestamp_t nonce_stamp_slop_limit; static struct ref_transaction *transaction; +static enum { + KEEPALIVE_NEVER = 0, + KEEPALIVE_AFTER_NUL, + KEEPALIVE_ALWAYS +} use_keepalive; +static int keepalive_in_sec = 5; + +static struct tmp_objdir *tmp_objdir; + static enum deny_action parse_deny_action(const char *var, const char *value) { if (value) { @@ -115,6 +134,26 @@ 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; @@ -168,16 +207,28 @@ static int receive_pack_config(const char *var, const char *value, void *cb) return 0; } + if (strcmp(var, "receive.advertisepushoptions") == 0) { + advertise_push_options = git_config_bool(var, value); + return 0; + } + + if (strcmp(var, "receive.keepalive") == 0) { + keepalive_in_sec = git_config_int(var, value); + return 0; + } + + if (strcmp(var, "receive.maxinputsize") == 0) { + max_input_size = git_config_int64(var, value); + return 0; + } + return git_default_config(var, value, cb); } -static void show_ref(const char *path, const unsigned char *sha1) +static void show_ref(const char *path, const struct object_id *oid) { - if (ref_is_hidden(path)) - return; - if (sent_capabilities) { - packet_write(1, "%s %s\n", sha1_to_hex(sha1), path); + packet_write_fmt(1, "%s %s\n", oid_to_hex(oid), path); } else { struct strbuf cap = STRBUF_INIT; @@ -189,51 +240,62 @@ static void show_ref(const char *path, const unsigned char *sha1) strbuf_addstr(&cap, " ofs-delta"); if (push_cert_nonce) strbuf_addf(&cap, " push-cert=%s", push_cert_nonce); + if (advertise_push_options) + strbuf_addstr(&cap, " push-options"); 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); + packet_write_fmt(1, "%s %s%c%s\n", + oid_to_hex(oid), 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 *unused) +static int show_ref_cb(const char *path_full, const struct object_id *oid, + int flag, void *data) { - path = strip_namespace(path); + struct oidset *seen = data; + 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 - * transfer but will otherwise ignore them. This happens to - * cover ".have" that are thrown in by add_one_alternate_ref() - * to mark histories that are complete in our alternates as - * well. + * transfer but will otherwise ignore them. */ - if (!path) + if (!path) { + if (oidset_insert(seen, oid)) + return 0; path = ".have"; - show_ref(path, sha1); + } else { + oidset_insert(seen, oid); + } + show_ref(path, oid); return 0; } -static void show_one_alternate_sha1(const unsigned char sha1[20], void *unused) +static void show_one_alternate_ref(const char *refname, + const struct object_id *oid, + void *data) { - show_ref(".have", sha1); -} + struct oidset *seen = data; -static void collect_one_alternate_ref(const struct ref *ref, void *data) -{ - struct sha1_array *sa = data; - sha1_array_append(sa, ref->old_sha1); + if (oidset_insert(seen, oid)) + return; + + show_ref(".have", oid); } 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); + static struct oidset seen = OIDSET_INIT; + + for_each_ref(show_ref_cb, &seen); + for_each_alternate_ref(show_one_alternate_ref, &seen); + oidset_clear(&seen); if (!sent_capabilities) - show_ref("capabilities^{}", null_sha1); + show_ref("capabilities^{}", &null_oid); advertise_shallow_grafts(1); @@ -247,8 +309,8 @@ struct command { unsigned int skip_update:1, did_not_exist:1; int index; - unsigned char old_sha1[20]; - unsigned char new_sha1[20]; + struct object_id old_oid; + struct object_id new_oid; char ref_name[FLEX_ARRAY]; /* more */ }; @@ -257,10 +319,10 @@ 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; @@ -291,10 +353,60 @@ static void rp_error(const char *err, ...) static int copy_to_sideband(int in, int out, void *arg) { char data[128]; + int keepalive_active = 0; + + if (keepalive_in_sec <= 0) + use_keepalive = KEEPALIVE_NEVER; + if (use_keepalive == KEEPALIVE_ALWAYS) + keepalive_active = 1; + while (1) { - ssize_t sz = xread(in, data, sizeof(data)); + ssize_t sz; + + if (keepalive_active) { + struct pollfd pfd; + int ret; + + pfd.fd = in; + pfd.events = POLLIN; + ret = poll(&pfd, 1, 1000 * keepalive_in_sec); + + if (ret < 0) { + if (errno == EINTR) + continue; + else + break; + } else if (ret == 0) { + /* no data; send a keepalive packet */ + static const char buf[] = "0005\1"; + write_or_die(1, buf, sizeof(buf) - 1); + continue; + } /* else there is actual data to read */ + } + + sz = xread(in, data, sizeof(data)); if (sz <= 0) break; + + if (use_keepalive == KEEPALIVE_AFTER_NUL && !keepalive_active) { + const char *p = memchr(data, '\0', sz); + if (p) { + /* + * The NUL tells us to start sending keepalives. Make + * sure we send any other data we read along + * with it. + */ + keepalive_active = 1; + send_sideband(1, 2, data, p - data, use_sideband); + send_sideband(1, 2, p + 1, sz - (p - data + 1), use_sideband); + continue; + } + } + + /* + * Either we're not looking for a NUL signal, or we didn't see + * it yet; just pass along the data. + */ send_sideband(1, 2, data, sz, use_sideband); } close(in); @@ -342,17 +454,17 @@ static void hmac_sha1(unsigned char *out, git_SHA1_Final(out, &ctx); } -static char *prepare_push_cert_nonce(const char *path, unsigned long stamp) +static char *prepare_push_cert_nonce(const char *path, timestamp_t stamp) { struct strbuf buf = STRBUF_INIT; unsigned char sha1[20]; - strbuf_addf(&buf, "%s:%lu", path, stamp); + strbuf_addf(&buf, "%s:%"PRItime, 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)); + strbuf_addf(&buf, "%"PRItime"-%.*s", stamp, 20, sha1_to_hex(sha1)); return strbuf_detach(&buf, NULL); } @@ -361,7 +473,8 @@ static char *prepare_push_cert_nonce(const char *path, unsigned long stamp) * 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) +static char *find_header(const char *msg, size_t len, const char *key, + const char **next_line) { int key_len = strlen(key); const char *line = msg; @@ -374,6 +487,8 @@ static char *find_header(const char *msg, size_t len, const char *key) if (line + key_len < eol && !memcmp(line, key, key_len) && line[key_len] == ' ') { int offset = key_len + 1; + if (next_line) + *next_line = *eol ? eol + 1 : eol; return xmemdupz(line + offset, (eol - line) - offset); } line = *eol ? eol + 1 : NULL; @@ -383,8 +498,8 @@ static char *find_header(const char *msg, size_t len, const char *key) static const char *check_nonce(const char *buf, size_t len) { - char *nonce = find_header(buf, len, "nonce"); - unsigned long stamp, ostamp; + char *nonce = find_header(buf, len, "nonce", NULL); + timestamp_t stamp, ostamp; char *bohmac, *expect = NULL; const char *retval = NONCE_BAD; @@ -422,7 +537,7 @@ static const char *check_nonce(const char *buf, size_t len) retval = NONCE_BAD; goto leave; } - stamp = strtoul(nonce, &bohmac, 10); + stamp = parse_timestamp(nonce, &bohmac, 10); if (bohmac == nonce || bohmac[0] != '-') { retval = NONCE_BAD; goto leave; @@ -440,7 +555,7 @@ static const char *check_nonce(const char *buf, size_t len) * would mean it was issued by another server with its clock * skewed in the future. */ - ostamp = strtoul(push_cert_nonce, NULL, 10); + ostamp = parse_timestamp(push_cert_nonce, NULL, 10); nonce_stamp_slop = (long)ostamp - (long)stamp; if (nonce_stamp_slop_limit && @@ -463,6 +578,45 @@ leave: return retval; } +/* + * Return 1 if there is no push_cert or if the push options in push_cert are + * the same as those in the argument; 0 otherwise. + */ +static int check_cert_push_options(const struct string_list *push_options) +{ + const char *buf = push_cert.buf; + int len = push_cert.len; + + char *option; + const char *next_line; + int options_seen = 0; + + int retval = 1; + + if (!len) + return 1; + + while ((option = find_header(buf, len, "push-option", &next_line))) { + len -= (next_line - buf); + buf = next_line; + options_seen++; + if (options_seen > push_options->nr + || strcmp(option, + push_options->items[options_seen - 1].string)) { + retval = 0; + goto leave; + } + free(option); + } + + if (options_seen != push_options->nr) + retval = 0; + +leave: + free(option); + return retval; +} + static void prepare_push_cert_sha1(struct child_process *proc) { static int already_done; @@ -522,8 +676,16 @@ static void prepare_push_cert_sha1(struct child_process *proc) } } +struct receive_hook_feed_state { + struct command *cmd; + int skip_broken; + struct strbuf buf; + const struct string_list *push_options; +}; + 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) +static int run_and_feed_hook(const char *hook_name, feed_fn feed, + struct receive_hook_feed_state *feed_state) { struct child_process proc = CHILD_PROCESS_INIT; struct async muxer; @@ -539,6 +701,19 @@ static int run_and_feed_hook(const char *hook_name, feed_fn feed, void *feed_sta proc.argv = argv; proc.in = -1; proc.stdout_to_stderr = 1; + if (feed_state->push_options) { + int i; + for (i = 0; i < feed_state->push_options->nr; i++) + argv_array_pushf(&proc.env_array, + "GIT_PUSH_OPTION_%d=%s", i, + feed_state->push_options->items[i].string); + argv_array_pushf(&proc.env_array, "GIT_PUSH_OPTION_COUNT=%d", + feed_state->push_options->nr); + } else + argv_array_pushf(&proc.env_array, "GIT_PUSH_OPTION_COUNT"); + + if (tmp_objdir) + argv_array_pushv(&proc.env_array, tmp_objdir_env(tmp_objdir)); if (use_sideband) { memset(&muxer, 0, sizeof(muxer)); @@ -578,12 +753,6 @@ static int run_and_feed_hook(const char *hook_name, feed_fn feed, void *feed_sta return finish_command(&proc); } -struct receive_hook_feed_state { - struct command *cmd; - int skip_broken; - struct strbuf buf; -}; - static int feed_receive_hook(void *state_, const char **bufp, size_t *sizep) { struct receive_hook_feed_state *state = state_; @@ -596,7 +765,7 @@ static int feed_receive_hook(void *state_, const char **bufp, size_t *sizep) return -1; /* EOF */ strbuf_reset(&state->buf); strbuf_addf(&state->buf, "%s %s %s\n", - sha1_to_hex(cmd->old_sha1), sha1_to_hex(cmd->new_sha1), + oid_to_hex(&cmd->old_oid), oid_to_hex(&cmd->new_oid), cmd->ref_name); state->cmd = cmd->next; if (bufp) { @@ -606,8 +775,10 @@ static int feed_receive_hook(void *state_, const char **bufp, size_t *sizep) return 0; } -static int run_receive_hook(struct command *commands, const char *hook_name, - int skip_broken) +static int run_receive_hook(struct command *commands, + const char *hook_name, + int skip_broken, + const struct string_list *push_options) { struct receive_hook_feed_state state; int status; @@ -618,6 +789,7 @@ static int run_receive_hook(struct command *commands, const char *hook_name, if (feed_receive_hook(&state, NULL, NULL)) return 0; state.cmd = commands; + state.push_options = push_options; status = run_and_feed_hook(hook_name, feed_receive_hook, &state); strbuf_release(&state.buf); return status; @@ -634,8 +806,8 @@ static int run_update_hook(struct command *cmd) return 0; argv[1] = cmd->ref_name; - argv[2] = sha1_to_hex(cmd->old_sha1); - argv[3] = sha1_to_hex(cmd->new_sha1); + argv[2] = oid_to_hex(&cmd->old_oid); + argv[3] = oid_to_hex(&cmd->new_oid); argv[4] = NULL; proc.no_stdin = 1; @@ -661,55 +833,47 @@ static int is_ref_checked_out(const char *ref) return !strcmp(head_name, ref); } -static char *refuse_unconfigured_deny_msg[] = { - "By default, updating the current branch in a non-bare repository", - "is denied, because it will make the index and work tree inconsistent", - "with what you pushed, and will require 'git reset --hard' to match", - "the work tree to HEAD.", - "", - "You can set 'receive.denyCurrentBranch' configuration variable to", - "'ignore' or 'warn' in the remote repository to allow pushing into", - "its current branch; however, this is not recommended unless you", - "arranged to update its work tree to match what you pushed in some", - "other way.", - "", - "To squelch this message and still keep the default behaviour, set", - "'receive.denyCurrentBranch' configuration variable to 'refuse'." -}; +static char *refuse_unconfigured_deny_msg = + N_("By default, updating the current branch in a non-bare repository\n" + "is denied, because it will make the index and work tree inconsistent\n" + "with what you pushed, and will require 'git reset --hard' to match\n" + "the work tree to HEAD.\n" + "\n" + "You can set the 'receive.denyCurrentBranch' configuration variable\n" + "to 'ignore' or 'warn' in the remote repository to allow pushing into\n" + "its current branch; however, this is not recommended unless you\n" + "arranged to update its work tree to match what you pushed in some\n" + "other way.\n" + "\n" + "To squelch this message and still keep the default behaviour, set\n" + "'receive.denyCurrentBranch' configuration variable to 'refuse'."); static void refuse_unconfigured_deny(void) { - int i; - for (i = 0; i < ARRAY_SIZE(refuse_unconfigured_deny_msg); i++) - rp_error("%s", refuse_unconfigured_deny_msg[i]); + rp_error("%s", _(refuse_unconfigured_deny_msg)); } -static char *refuse_unconfigured_deny_delete_current_msg[] = { - "By default, deleting the current branch is denied, because the next", - "'git clone' won't result in any file checked out, causing confusion.", - "", - "You can set 'receive.denyDeleteCurrent' configuration variable to", - "'warn' or 'ignore' in the remote repository to allow deleting the", - "current branch, with or without a warning message.", - "", - "To squelch this message, you can set it to 'refuse'." -}; +static char *refuse_unconfigured_deny_delete_current_msg = + N_("By default, deleting the current branch is denied, because the next\n" + "'git clone' won't result in any file checked out, causing confusion.\n" + "\n" + "You can set 'receive.denyDeleteCurrent' configuration variable to\n" + "'warn' or 'ignore' in the remote repository to allow deleting the\n" + "current branch, with or without a warning message.\n" + "\n" + "To squelch this message, you can set it to 'refuse'."); static void refuse_unconfigured_deny_delete_current(void) { - int i; - for (i = 0; - i < ARRAY_SIZE(refuse_unconfigured_deny_delete_current_msg); - i++) - rp_error("%s", refuse_unconfigured_deny_delete_current_msg[i]); + rp_error("%s", _(refuse_unconfigured_deny_delete_current_msg)); } 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; + struct oid_array extra = OID_ARRAY_INIT; + struct check_connected_options opt = CHECK_CONNECTED_INIT; uint32_t mask = 1 << (cmd->index % 32); int i; @@ -719,13 +883,13 @@ static int update_shallow_ref(struct command *cmd, struct shallow_info *si) 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]); + oid_array_append(&extra, &si->shallow->oid[i]); - setup_alternate_shallow(&shallow_lock, &alt_file, &extra); - if (check_shallow_connected(command_singleton_iterator, - 0, cmd, alt_file)) { + opt.env = tmp_objdir_env(tmp_objdir); + setup_alternate_shallow(&shallow_lock, &opt.shallow_file, &extra); + if (check_connected(command_singleton_iterator, cmd, &opt)) { rollback_lock_file(&shallow_lock); - sha1_array_clear(&extra); + oid_array_clear(&extra); return -1; } @@ -736,10 +900,10 @@ static int update_shallow_ref(struct command *cmd, struct shallow_info *si) * not lose these new roots.. */ for (i = 0; i < extra.nr; i++) - register_shallow(extra.sha1[i]); + register_shallow(&extra.oid[i]); si->shallow_ref[cmd->index] = 0; - sha1_array_clear(&extra); + oid_array_clear(&extra); return 0; } @@ -864,9 +1028,10 @@ 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, *ret; - unsigned char *old_sha1 = cmd->old_sha1; - unsigned char *new_sha1 = cmd->new_sha1; + static char *namespaced_name; + const char *ret; + struct object_id *old_oid = &cmd->old_oid; + struct object_id *new_oid = &cmd->new_oid; /* only refs/... are allowed */ if (!starts_with(name, "refs/") || check_refname_format(name + 5, 0)) { @@ -875,6 +1040,7 @@ static const char *update(struct command *cmd, struct shallow_info *si) } strbuf_addf(&namespaced_name_buf, "%s%s", get_git_namespace(), name); + free(namespaced_name); namespaced_name = strbuf_detach(&namespaced_name_buf, NULL); if (is_ref_checked_out(namespaced_name)) { @@ -891,26 +1057,26 @@ static const char *update(struct command *cmd, struct shallow_info *si) refuse_unconfigured_deny(); return "branch is currently checked out"; case DENY_UPDATE_INSTEAD: - ret = update_worktree(new_sha1); + ret = update_worktree(new_oid->hash); if (ret) return ret; break; } } - if (!is_null_sha1(new_sha1) && !has_sha1_file(new_sha1)) { + if (!is_null_oid(new_oid) && !has_object_file(new_oid)) { error("unpack should have generated %s, " - "but I can't find it!", sha1_to_hex(new_sha1)); + "but I can't find it!", oid_to_hex(new_oid)); return "bad pack"; } - if (!is_null_sha1(old_sha1) && is_null_sha1(new_sha1)) { + if (!is_null_oid(old_oid) && is_null_oid(new_oid)) { 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; @@ -930,14 +1096,14 @@ static const char *update(struct command *cmd, struct shallow_info *si) } } - if (deny_non_fast_forwards && !is_null_sha1(new_sha1) && - !is_null_sha1(old_sha1) && + if (deny_non_fast_forwards && !is_null_oid(new_oid) && + !is_null_oid(old_oid) && starts_with(name, "refs/heads/")) { struct object *old_object, *new_object; struct commit *old_commit, *new_commit; - old_object = parse_object(old_sha1); - new_object = parse_object(new_sha1); + old_object = parse_object(old_oid); + new_object = parse_object(new_oid); if (!old_object || !new_object || old_object->type != OBJ_COMMIT || @@ -958,10 +1124,10 @@ static const char *update(struct command *cmd, struct shallow_info *si) return "hook declined"; } - if (is_null_sha1(new_sha1)) { + if (is_null_oid(new_oid)) { struct strbuf err = STRBUF_INIT; - if (!parse_object(old_sha1)) { - old_sha1 = NULL; + if (!parse_object(old_oid)) { + old_oid = NULL; if (ref_exists(name)) { rp_warning("Allowing deletion of corrupt ref."); } else { @@ -971,7 +1137,7 @@ static const char *update(struct command *cmd, struct shallow_info *si) } if (ref_transaction_delete(transaction, namespaced_name, - old_sha1, + old_oid->hash, 0, "push", &err)) { rp_error("%s", err.buf); strbuf_release(&err); @@ -988,7 +1154,7 @@ static const char *update(struct command *cmd, struct shallow_info *si) if (ref_transaction_update(transaction, namespaced_name, - new_sha1, old_sha1, + new_oid->hash, old_oid->hash, 0, "push", &err)) { rp_error("%s", err.buf); @@ -1005,35 +1171,26 @@ static const char *update(struct command *cmd, struct shallow_info *si) static void run_update_post_hook(struct command *commands) { struct command *cmd; - int argc; - const char **argv; struct child_process proc = CHILD_PROCESS_INIT; - char *hook; + 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 || !hook) + if (!hook) return; - argv = xmalloc(sizeof(*argv) * (2 + argc)); - argv[0] = hook; - - for (argc = 1, cmd = commands; cmd; cmd = cmd->next) { + for (cmd = commands; cmd; cmd = cmd->next) { if (cmd->error_string || cmd->did_not_exist) continue; - argv[argc] = xstrdup(cmd->ref_name); - argc++; + if (!proc.args.argc) + argv_array_push(&proc.args, hook); + argv_array_push(&proc.args, cmd->ref_name); } - argv[argc] = NULL; + if (!proc.args.argc) + return; 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) @@ -1048,8 +1205,7 @@ 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_MAX_RAWSZ]; int flag; strbuf_addf(&buf, "%s%s", get_git_namespace(), cmd->ref_name); @@ -1059,13 +1215,13 @@ static void check_aliased_update(struct command *cmd, struct string_list *list) 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; @@ -1074,20 +1230,20 @@ static void check_aliased_update(struct command *cmd, struct string_list *list) dst_cmd = (struct command *) item->util; - if (!hashcmp(cmd->old_sha1, dst_cmd->old_sha1) && - !hashcmp(cmd->new_sha1, dst_cmd->new_sha1)) + if (!oidcmp(&cmd->old_oid, &dst_cmd->old_oid) && + !oidcmp(&cmd->new_oid, &dst_cmd->new_oid)) return; 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)); rp_error("refusing inconsistent update between symref '%s' (%s..%s) and" " its target '%s' (%s..%s)", - cmd->ref_name, cmd_oldh, cmd_newh, - dst_cmd->ref_name, dst_oldh, dst_newh); + cmd->ref_name, + find_unique_abbrev(cmd->old_oid.hash, DEFAULT_ABBREV), + find_unique_abbrev(cmd->new_oid.hash, DEFAULT_ABBREV), + dst_cmd->ref_name, + find_unique_abbrev(dst_cmd->old_oid.hash, DEFAULT_ABBREV), + find_unique_abbrev(dst_cmd->new_oid.hash, DEFAULT_ABBREV)); cmd->error_string = dst_cmd->error_string = "inconsistent aliased update"; @@ -1118,10 +1274,10 @@ static int command_singleton_iterator(void *cb_data, unsigned char sha1[20]) struct command **cmd_list = cb_data; struct command *cmd = *cmd_list; - if (!cmd || is_null_sha1(cmd->new_sha1)) + if (!cmd || is_null_oid(&cmd->new_oid)) return -1; /* end of list */ *cmd_list = NULL; /* this returns only one */ - hashcpy(sha1, cmd->new_sha1); + hashcpy(sha1, cmd->new_oid.hash); return 0; } @@ -1132,12 +1288,17 @@ static void set_connectivity_errors(struct command *commands, for (cmd = commands; cmd; cmd = cmd->next) { struct command *singleton = cmd; + struct check_connected_options opt = CHECK_CONNECTED_INIT; + 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)) + + opt.env = tmp_objdir_env(tmp_objdir); + if (!check_connected(command_singleton_iterator, &singleton, + &opt)) continue; + cmd->error_string = "missing necessary objects"; } } @@ -1157,8 +1318,8 @@ static int iterate_receive_command_list(void *cb_data, unsigned char sha1[20]) 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); + if (!is_null_oid(&cmd->new_oid) && !cmd->skip_update) { + hashcpy(sha1, cmd->new_oid.hash); *cmd_list = cmd->next; return 0; } @@ -1169,16 +1330,29 @@ static int iterate_receive_command_list(void *cb_data, unsigned char sha1[20]) 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 || !ref_is_hidden(cmd->ref_name)) + 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)) + if (is_null_oid(&cmd->new_oid)) 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) @@ -1278,11 +1452,15 @@ cleanup: static void execute_commands(struct command *commands, const char *unpacker_error, - struct shallow_info *si) + struct shallow_info *si, + const struct string_list *push_options) { + struct check_connected_options opt = CHECK_CONNECTED_INIT; struct command *cmd; - unsigned char sha1[20]; + struct object_id oid; struct iterate_data data; + struct async muxer; + int err_fd = 0; if (unpacker_error) { for (cmd = commands; cmd; cmd = cmd->next) @@ -1290,14 +1468,29 @@ static void execute_commands(struct command *commands, return; } + if (use_sideband) { + memset(&muxer, 0, sizeof(muxer)); + muxer.proc = copy_to_sideband; + muxer.in = -1; + if (!start_async(&muxer)) + err_fd = muxer.in; + /* ...else, continue without relaying sideband */ + } + data.cmds = commands; data.si = si; - if (check_everything_connected(iterate_receive_command_list, 0, &data)) + opt.err_fd = err_fd; + opt.progress = err_fd && !quiet; + opt.env = tmp_objdir_env(tmp_objdir); + if (check_connected(iterate_receive_command_list, &data, &opt)) set_connectivity_errors(commands, si); + if (use_sideband) + finish_async(&muxer); + reject_updates_to_hidden(commands); - if (run_receive_hook(commands, "pre-receive", 0)) { + if (run_receive_hook(commands, "pre-receive", 0, push_options)) { for (cmd = commands; cmd; cmd = cmd->next) { if (!cmd->error_string) cmd->error_string = "pre-receive hook declined"; @@ -1305,10 +1498,23 @@ static void execute_commands(struct command *commands, return; } + /* + * Now we'll start writing out refs, which means the objects need + * to be in their final positions so that other processes can see them. + */ + if (tmp_objdir_migrate(tmp_objdir) < 0) { + for (cmd = commands; cmd; cmd = cmd->next) { + if (!cmd->error_string) + cmd->error_string = "unable to migrate objects to permanent storage"; + } + return; + } + tmp_objdir = NULL; + check_aliased_updates(commands); free(head_name_to_free); - head_name = head_name_to_free = resolve_refdup("HEAD", 0, sha1, NULL); + head_name = head_name_to_free = resolve_refdup("HEAD", 0, oid.hash, NULL); if (use_atomic) execute_commands_atomic(commands, si); @@ -1323,25 +1529,23 @@ static struct command **queue_command(struct command **tail, const char *line, int linelen) { - unsigned char old_sha1[20], new_sha1[20]; + struct object_id old_oid, new_oid; struct command *cmd; const char *refname; int reflen; + const char *p; - if (linelen < 83 || - line[40] != ' ' || - line[81] != ' ' || - get_sha1_hex(line, old_sha1) || - get_sha1_hex(line + 41, new_sha1)) + if (parse_oid_hex(line, &old_oid, &p) || + *p++ != ' ' || + parse_oid_hex(p, &new_oid, &p) || + *p++ != ' ') die("protocol error: expected old/new/ref, got '%s'", line); - refname = line + 82; - reflen = linelen - 82; - cmd = xcalloc(1, 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'; + refname = p; + reflen = linelen - (p - line); + FLEX_ALLOC_MEM(cmd, ref_name, refname, reflen); + oidcpy(&cmd->old_oid, &old_oid); + oidcpy(&cmd->new_oid, &new_oid); *tail = cmd; return &cmd->next; } @@ -1363,12 +1567,12 @@ static void queue_commands_from_cert(struct command **tail, while (boc < eoc) { const char *eol = memchr(boc, '\n', eoc - boc); - tail = queue_command(tail, boc, eol ? eol - boc : eoc - eol); + tail = queue_command(tail, boc, eol ? eol - boc : eoc - boc); boc = eol ? eol + 1 : eoc; } } -static struct command *read_head_info(struct sha1_array *shallow) +static struct command *read_head_info(struct oid_array *shallow) { struct command *commands = NULL; struct command **p = &commands; @@ -1380,12 +1584,12 @@ static struct command *read_head_info(struct sha1_array *shallow) if (!line) break; - if (len == 48 && starts_with(line, "shallow ")) { - unsigned char sha1[20]; - if (get_sha1_hex(line + 8, sha1)) + if (len > 8 && starts_with(line, "shallow ")) { + struct object_id oid; + if (get_oid_hex(line + 8, &oid)) die("protocol error: expected shallow sha, got '%s'", line + 8); - sha1_array_append(shallow, sha1); + oid_array_append(shallow, &oid); continue; } @@ -1401,6 +1605,9 @@ static struct command *read_head_info(struct sha1_array *shallow) if (advertise_atomic_push && parse_feature_request(feature_list, "atomic")) use_atomic = 1; + if (advertise_push_options + && parse_feature_request(feature_list, "push-options")) + use_push_options = 1; } if (!strcmp(line, "push-cert")) { @@ -1433,6 +1640,21 @@ static struct command *read_head_info(struct sha1_array *shallow) return commands; } +static void read_push_options(struct string_list *options) +{ + while (1) { + char *line; + int len; + + line = packet_read_line(0, &len); + + if (!line) + break; + + string_list_append(options, line); + } +} + static const char *parse_pack_header(struct pack_header *hdr) { switch (read_pack_header(0, hdr)) { @@ -1455,12 +1677,17 @@ static const char *parse_pack_header(struct pack_header *hdr) static const char *pack_lockfile; +static void push_header_arg(struct argv_array *args, struct pack_header *hdr) +{ + argv_array_pushf(args, "--pack_header=%"PRIu32",%"PRIu32, + ntohl(hdr->hdr_version), ntohl(hdr->hdr_entries)); +} + 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 @@ -1474,9 +1701,6 @@ static const char *unpack(int err_fd, struct shallow_info *si) 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); @@ -1484,12 +1708,32 @@ static const char *unpack(int err_fd, struct shallow_info *si) argv_array_push(&child.args, alt_shallow_file); } + tmp_objdir = tmp_objdir_create(); + if (!tmp_objdir) { + if (err_fd > 0) + close(err_fd); + return "unable to create temporary object directory"; + } + child.env = tmp_objdir_env(tmp_objdir); + + /* + * Normally we just pass the tmp_objdir environment to the child + * processes that do the heavy lifting, but we may need to see these + * objects ourselves to set up shallow information. + */ + tmp_objdir_add_as_alternate(tmp_objdir); + if (ntohl(hdr.hdr_entries) < unpack_limit) { - argv_array_pushl(&child.args, "unpack-objects", hdr_arg, NULL); + argv_array_push(&child.args, "unpack-objects"); + push_header_arg(&child.args, &hdr); if (quiet) argv_array_push(&child.args, "-q"); if (fsck_objects) - argv_array_push(&child.args, "--strict"); + argv_array_pushf(&child.args, "--strict%s", + fsck_msg_types.buf); + if (max_input_size) + argv_array_pushf(&child.args, "--max-input-size=%"PRIuMAX, + (uintmax_t)max_input_size); child.no_stdout = 1; child.err = err_fd; child.git_cmd = 1; @@ -1497,19 +1741,30 @@ static const char *unpack(int err_fd, struct shallow_info *si) if (status) return "unpack-objects abnormal exit"; } else { - int s; - char keep_arg[256]; + char hostname[HOST_NAME_MAX + 1]; - 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", NULL); + push_header_arg(&child.args, &hdr); - argv_array_pushl(&child.args, "index-pack", - "--stdin", hdr_arg, keep_arg, NULL); + if (xgethostname(hostname, sizeof(hostname))) + xsnprintf(hostname, sizeof(hostname), "localhost"); + argv_array_pushf(&child.args, + "--keep=receive-pack %"PRIuMAX" on %s", + (uintmax_t)getpid(), + hostname); + + if (!quiet && err_fd) + argv_array_push(&child.args, "--show-resolving-progress"); + if (use_sideband) + argv_array_push(&child.args, "--report-end-of-input"); if (fsck_objects) - argv_array_push(&child.args, "--strict"); - if (fix_thin) + argv_array_pushf(&child.args, "--strict%s", + fsck_msg_types.buf); + if (!reject_thin) argv_array_push(&child.args, "--fix-thin"); + if (max_input_size) + argv_array_pushf(&child.args, "--max-input-size=%"PRIuMAX, + (uintmax_t)max_input_size); child.out = -1; child.err = err_fd; child.git_cmd = 1; @@ -1534,6 +1789,7 @@ static const char *unpack_with_sideband(struct shallow_info *si) if (!use_sideband) return unpack(0, si); + use_keepalive = KEEPALIVE_AFTER_NUL; memset(&muxer, 0, sizeof(muxer)); muxer.proc = copy_to_sideband; muxer.in = -1; @@ -1551,8 +1807,7 @@ static void prepare_shallow_update(struct command *commands, { int i, j, k, bitmap_size = (si->ref->nr + 31) / 32; - si->used_shallow = xmalloc(sizeof(*si->used_shallow) * - si->shallow->nr); + ALLOC_ARRAY(si->used_shallow, si->shallow->nr); assign_shallow_commits_to_refs(si, si->used_shallow, NULL); si->need_reachability_test = @@ -1572,7 +1827,7 @@ static void prepare_shallow_update(struct command *commands, continue; si->need_reachability_test[i]++; for (k = 0; k < 32; k++) - if (si->used_shallow[i][j] & (1 << k)) + if (si->used_shallow[i][j] & (1U << k)) si->shallow_ref[j * 32 + k]++; } @@ -1595,7 +1850,7 @@ static void prepare_shallow_update(struct command *commands, static void update_shallow_info(struct command *commands, struct shallow_info *si, - struct sha1_array *ref) + struct oid_array *ref) { struct command *cmd; int *ref_status; @@ -1606,9 +1861,9 @@ static void update_shallow_info(struct command *commands, } for (cmd = commands; cmd; cmd = cmd->next) { - if (is_null_sha1(cmd->new_sha1)) + if (is_null_oid(&cmd->new_oid)) continue; - sha1_array_append(ref, cmd->new_sha1); + oid_array_append(ref, &cmd->new_oid); cmd->index = ref->nr - 1; } si->ref = ref; @@ -1618,10 +1873,10 @@ static void update_shallow_info(struct command *commands, return; } - ref_status = xmalloc(sizeof(*ref_status) * ref->nr); + 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)) + if (is_null_oid(&cmd->new_oid)) continue; if (ref_status[cmd->index]) { cmd->error_string = "shallow update not allowed"; @@ -1659,7 +1914,7 @@ static int delete_only(struct command *commands) { struct command *cmd; for (cmd = commands; cmd; cmd = cmd->next) { - if (!is_null_sha1(cmd->new_sha1)) + if (!is_null_oid(&cmd->new_oid)) return 0; } return 1; @@ -1668,45 +1923,29 @@ static int delete_only(struct command *commands) int cmd_receive_pack(int argc, const char **argv, const char *prefix) { int advertise_refs = 0; - int i; struct command *commands; - struct sha1_array shallow = SHA1_ARRAY_INIT; - struct sha1_array ref = SHA1_ARRAY_INIT; + struct oid_array shallow = OID_ARRAY_INIT; + struct oid_array ref = OID_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, "--quiet")) { - quiet = 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); - if (!strcmp(arg, "--advertise-refs")) { - advertise_refs = 1; - continue; - } - if (!strcmp(arg, "--stateless-rpc")) { - stateless_rpc = 1; - continue; - } - if (!strcmp(arg, "--reject-thin-pack-for-testing")) { - fix_thin = 0; - continue; - } - - usage(receive_pack_usage); - } - if (service_dir) - usage(receive_pack_usage); - service_dir = arg; - } - if (!service_dir) - usage(receive_pack_usage); + service_dir = argv[0]; setup_path(); @@ -1730,6 +1969,15 @@ int cmd_receive_pack(int argc, const char **argv, const char *prefix) if ((commands = read_head_info(&shallow)) != NULL) { const char *unpack_status = NULL; + struct string_list push_options = STRING_LIST_INIT_DUP; + + if (use_push_options) + read_push_options(&push_options); + if (!check_cert_push_options(&push_options)) { + struct command *cmd; + for (cmd = commands; cmd; cmd = cmd->next) + cmd->error_string = "inconsistent push options"; + } prepare_shallow_info(&si, &shallow); if (!si.nr_ours && !si.nr_theirs) @@ -1738,19 +1986,35 @@ int cmd_receive_pack(int argc, const char **argv, const char *prefix) unpack_status = unpack_with_sideband(&si); update_shallow_info(commands, &si, &ref); } - execute_commands(commands, unpack_status, &si); + use_keepalive = KEEPALIVE_ALWAYS; + execute_commands(commands, unpack_status, &si, + &push_options); if (pack_lockfile) unlink_or_warn(pack_lockfile); if (report_status) report(commands, unpack_status); - run_receive_hook(commands, "post-receive", 1); + run_receive_hook(commands, "post-receive", 1, + &push_options); run_update_post_hook(commands); + string_list_clear(&push_options, 0); if (auto_gc) { const char *argv_gc_auto[] = { "gc", "--auto", "--quiet", NULL, }; - int opt = RUN_GIT_CMD | RUN_COMMAND_STDOUT_TO_STDERR; - run_command_v_opt(argv_gc_auto, opt); + struct child_process proc = CHILD_PROCESS_INIT; + + proc.no_stdin = 1; + proc.stdout_to_stderr = 1; + proc.err = use_sideband ? -1 : 0; + proc.git_cmd = 1; + proc.argv = argv_gc_auto; + + close_all_packs(); + if (!start_command(&proc)) { + if (use_sideband) + copy_to_sideband(proc.err, -1, NULL); + finish_command(&proc); + } } if (auto_update_server_info) update_server_info(0); @@ -1758,8 +2022,8 @@ int cmd_receive_pack(int argc, const char **argv, const char *prefix) } if (use_sideband) packet_flush(1); - sha1_array_clear(&shallow); - sha1_array_clear(&ref); + oid_array_clear(&shallow); + oid_array_clear(&ref); free((void *)push_cert_nonce); return 0; } diff --git a/builtin/reflog.c b/builtin/reflog.c index 8182b648b9..920c16dac0 100644 --- a/builtin/reflog.c +++ b/builtin/reflog.c @@ -13,15 +13,17 @@ static const char reflog_expire_usage[] = "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 [--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; +static timestamp_t default_reflog_expire; +static timestamp_t default_reflog_expire_unreachable; struct cmd_reflog_expire_cb { struct rev_info revs; int stalefix; - unsigned long expire_total; - unsigned long expire_unreachable; + timestamp_t expire_total; + timestamp_t expire_unreachable; int recno; }; @@ -53,14 +55,14 @@ struct collect_reflog_cb { #define STUDYING (1u<<11) #define REACHABLE (1u<<12) -static int tree_is_complete(const unsigned char *sha1) +static int tree_is_complete(const struct object_id *oid) { struct tree_desc desc; struct name_entry entry; int complete; struct tree *tree; - tree = lookup_tree(sha1); + tree = lookup_tree(oid); if (!tree) return 0; if (tree->object.flags & SEEN) @@ -71,7 +73,7 @@ static int tree_is_complete(const unsigned char *sha1) if (!tree->buffer) { enum object_type type; unsigned long size; - void *data = read_sha1_file(sha1, &type, &size); + void *data = read_sha1_file(oid->hash, &type, &size); if (!data) { tree->object.flags |= INCOMPLETE; return 0; @@ -82,8 +84,8 @@ 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))) { tree->object.flags |= INCOMPLETE; complete = 0; } @@ -124,7 +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)) c->object.flags |= INCOMPLETE; if (c->object.flags & INCOMPLETE) { @@ -150,7 +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)) { is_incomplete = 1; c->object.flags |= INCOMPLETE; } @@ -184,13 +186,13 @@ static int commit_is_complete(struct commit *commit) return !is_incomplete; } -static int keep_entry(struct commit **it, unsigned char *sha1) +static int keep_entry(struct commit **it, struct object_id *oid) { struct commit *commit; - if (is_null_sha1(sha1)) + if (is_null_oid(oid)) return 1; - commit = lookup_commit_reference_gently(sha1, 1); + commit = lookup_commit_reference_gently(oid, 1); if (!commit) return 0; @@ -216,9 +218,8 @@ static int keep_entry(struct commit **it, unsigned char *sha1) */ static void mark_reachable(struct expire_reflog_policy_cb *cb) { - struct commit *commit; struct commit_list *pending; - unsigned long expire_limit = cb->mark_limit; + timestamp_t expire_limit = cb->mark_limit; struct commit_list *leftover = NULL; for (pending = cb->mark_list; pending; pending = pending->next) @@ -226,11 +227,8 @@ static void mark_reachable(struct expire_reflog_policy_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)) @@ -253,17 +251,17 @@ static void mark_reachable(struct expire_reflog_policy_cb *cb) cb->mark_list = leftover; } -static int unreachable(struct expire_reflog_policy_cb *cb, struct commit *commit, unsigned char *sha1) +static int unreachable(struct expire_reflog_policy_cb *cb, struct commit *commit, struct object_id *oid) { /* * We may or may not have the commit yet - if not, look it * up using the supplied sha1. */ if (!commit) { - if (is_null_sha1(sha1)) + if (is_null_oid(oid)) return 0; - commit = lookup_commit_reference_gently(sha1, 1); + commit = lookup_commit_reference_gently(oid, 1); /* Not a commit -- keep it */ if (!commit) @@ -285,8 +283,8 @@ static int unreachable(struct expire_reflog_policy_cb *cb, struct commit *commit /* * 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, +static int should_expire_reflog_ent(struct object_id *ooid, struct object_id *noid, + const char *email, timestamp_t timestamp, int tz, const char *message, void *cb_data) { struct expire_reflog_policy_cb *cb = cb_data; @@ -297,13 +295,13 @@ static int should_expire_reflog_ent(unsigned char *osha1, unsigned char *nsha1, old = new = NULL; if (cb->cmd.stalefix && - (!keep_entry(&old, osha1) || !keep_entry(&new, nsha1))) + (!keep_entry(&old, ooid) || !keep_entry(&new, noid))) return 1; if (timestamp < cb->cmd.expire_unreachable) { if (cb->unreachable_expire_kind == UE_ALWAYS) return 1; - if (unreachable(cb, old, osha1) || unreachable(cb, new, nsha1)) + if (unreachable(cb, old, ooid) || unreachable(cb, new, noid)) return 1; } @@ -313,14 +311,14 @@ static int should_expire_reflog_ent(unsigned char *osha1, unsigned char *nsha1, return 0; } -static int push_tip_to_list(const char *refname, const unsigned char *sha1, +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, 1); if (!tip_commit) return 0; commit_list_insert(tip_commit, list); @@ -328,7 +326,7 @@ static int push_tip_to_list(const char *refname, const unsigned char *sha1, } static void reflog_expiry_prepare(const char *refname, - const unsigned char *sha1, + const struct object_id *oid, void *cb_data) { struct expire_reflog_policy_cb *cb = cb_data; @@ -337,7 +335,7 @@ static void reflog_expiry_prepare(const char *refname, cb->tip_commit = NULL; cb->unreachable_expire_kind = UE_HEAD; } else { - cb->tip_commit = lookup_commit_reference_gently(sha1, 1); + cb->tip_commit = lookup_commit_reference_gently(oid, 1); if (!cb->tip_commit) cb->unreachable_expire_kind = UE_ALWAYS; else @@ -352,6 +350,7 @@ static void reflog_expiry_prepare(const char *refname, 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, &cb->tips); for (elem = cb->tips; elem; elem = elem->next) commit_list_insert(elem->item, &cb->mark_list); @@ -379,15 +378,13 @@ static void reflog_expiry_cleanup(void *cb_data) } } -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; @@ -395,9 +392,8 @@ static int collect_reflog(const char *ref, const unsigned char *sha1, int unused static struct reflog_expire_cfg { struct reflog_expire_cfg *next; - unsigned long expire_total; - unsigned long expire_unreachable; - size_t len; + timestamp_t expire_total; + timestamp_t expire_unreachable; char pattern[FLEX_ARRAY]; } *reflog_expire_cfg, **reflog_expire_cfg_tail; @@ -409,24 +405,22 @@ 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; } -static int parse_expire_cfg_value(const char *var, const char *value, unsigned long *expire) +static int parse_expire_cfg_value(const char *var, const char *value, timestamp_t *expire) { if (!value) return config_error_nonbool(var); if (parse_expiry_date(value, expire)) - return error(_("%s' for '%s' is not a valid timestamp"), + return error(_("'%s' for '%s' is not a valid timestamp"), value, var); return 0; } @@ -439,7 +433,7 @@ static int reflog_expire_config(const char *var, const char *value, void *cb) { const char *pattern, *key; int pattern_len; - unsigned long expire; + timestamp_t expire; int slot; struct reflog_expire_cfg *ent; @@ -521,7 +515,7 @@ 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 expire_reflog_policy_cb cb; - unsigned long now = time(NULL); + timestamp_t now = time(NULL); int i, status, do_all; int explicit_expiry = 0; unsigned int flags = 0; @@ -621,8 +615,8 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix) return status; } -static int count_reflog_ent(unsigned char *osha1, unsigned char *nsha1, - const char *email, unsigned long timestamp, int tz, +static int count_reflog_ent(struct object_id *ooid, struct object_id *noid, + const char *email, timestamp_t timestamp, int tz, const char *message, void *cb_data) { struct expire_reflog_policy_cb *cb = cb_data; @@ -698,12 +692,38 @@ static int cmd_reflog_delete(int argc, const char **argv, const char *prefix) 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) { @@ -723,5 +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 3b8c22cc75..11b48bfb41 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: @@ -113,65 +114,24 @@ 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_fmt(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_fmt(stdin_fd, "%s %s%chost=%s%c", serv, repo, 0, + vhost, 0); } static int run_child(const char *arg, const char *service) @@ -182,7 +142,7 @@ static int run_child(const char *arg, const char *service) 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"); @@ -208,7 +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 5d3ab906bc..f1a88fe265 100644 --- a/builtin/remote.c +++ b/builtin/remote.c @@ -18,6 +18,7 @@ static const char * const builtin_remote_usage[] = { 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>"), @@ -65,6 +66,11 @@ static const char * const builtin_remote_update_usage[] = { 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[] = { N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"), N_("git remote set-url --add <name> <newurl>"), @@ -102,8 +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, '+'); @@ -113,7 +119,7 @@ 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[] = @@ -180,10 +186,7 @@ static int add(int argc, const char **argv) url = argv[1]; remote = remote_get(name); - if (remote && (remote->url_nr > 1 || - (strcmp(name, remote->url[0]) && - strcmp(url, remote->url[0])) || - remote->fetch_refspec_nr)) + if (remote_is_configured(remote, 1)) die(_("remote %s already exists."), name); strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name); @@ -191,8 +194,7 @@ static int add(int argc, const char **argv) 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); @@ -200,25 +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)) @@ -245,10 +244,10 @@ 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 struct string_list branch_list = STRING_LIST_INIT_NODUP; static const char *abbrev_ref(const char *name, const char *prefix) { @@ -305,7 +304,9 @@ static int config_read_branches(const char *key, const char *value, void *cb) if (v >= 0) info->rebase = v; else if (!strcmp(value, "preserve")) - info->rebase = 1; + info->rebase = NORMAL_REBASE; + else if (!strcmp(value, "interactive")) + info->rebase = INTERACTIVE_REBASE; } } return 0; @@ -395,7 +396,7 @@ 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)); @@ -404,14 +405,14 @@ static int get_push_ref_states(const struct ref *remote_refs, 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; @@ -509,11 +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)); @@ -539,13 +539,7 @@ static int add_branch_for_removal(const char *refname, return 0; } - /* make sure that symrefs are deleted */ - 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; } @@ -557,20 +551,20 @@ 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 (starts_with(refname, buf.buf)) { item = string_list_append(rename->remote_branches, xstrdup(refname)); symref = resolve_ref_unsafe(refname, RESOLVE_REF_READING, - orig_sha1, &flag); + orig_oid.hash, &flag); if (flag & REF_ISSYMREF) item->util = xstrdup(symref); else @@ -584,31 +578,23 @@ 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; } @@ -632,14 +618,14 @@ static int mv(int argc, const char **argv) rename.remote_branches = &remote_branches; oldremote = remote_get(rename.old); - if (!oldremote) + if (!remote_is_configured(oldremote, 1)) 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)) + if (remote_is_configured(newremote, 1)) die(_("remote %s already exists."), rename.new); strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new); @@ -655,8 +641,7 @@ static int mv(int argc, const char **argv) 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; @@ -676,8 +661,7 @@ static int mv(int argc, const char **argv) "\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(); @@ -687,9 +671,7 @@ 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); } } @@ -704,12 +686,12 @@ 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, RESOLVE_REF_READING, sha1, &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)) + if (delete_ref(NULL, item->string, NULL, REF_NODEREF)) die(_("deleting '%s' failed"), item->string); } for (i = 0; i < remote_branches.nr; i++) { @@ -749,26 +731,6 @@ static int mv(int argc, const char **argv) return 0; } -static int remove_branches(struct string_list *branches) -{ - struct strbuf err = STRBUF_INIT; - int i, result = 0; - - if (repack_without_refs(branches, &err)) - result |= error("%s", err.buf); - strbuf_release(&err); - - for (i = 0; i < branches->nr; i++) { - struct string_list_item *item = branches->items + i; - const char *refname = item->string; - - if (delete_ref(refname, NULL, 0)) - result |= error(_("Could not remove branch %s"), refname); - } - - return result; -} - static int rm(int argc, const char **argv) { struct option options[] = { @@ -791,7 +753,7 @@ static int rm(int argc, const char **argv) usage_with_options(builtin_remote_rm_usage, options); remote = remote_get(argv[1]); - if (!remote) + if (!remote_is_configured(remote, 1)) die(_("No such remote: %s"), argv[1]); known_remotes.to_delete = remote; @@ -807,10 +769,9 @@ 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; - } + result = git_config_set_gently(buf.buf, NULL); + if (result && result != CONFIG_NOTHING_SET) + die(_("could not unset '%s'"), buf.buf); } } } @@ -825,8 +786,8 @@ 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("remote: remove", &branches, REF_NODEREF); + string_list_clear(&branches, 0); if (skipped.nr) { fprintf_ln(stderr, @@ -867,7 +828,7 @@ 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; @@ -989,7 +950,7 @@ static int show_local_info_item(struct string_list_item *item, void *cb_data) struct show_info *show_info = cb_data; struct branch_info *branch_info = item->util; struct string_list *merge = &branch_info->merge; - const char *also; + int width = show_info->width + 4; int i; if (branch_info->rebase && branch_info->merge.nr > 1) { @@ -1000,17 +961,18 @@ static int show_local_info_item(struct string_list_item *item, void *cb_data) printf(" %-*s ", show_info->width, item->string); if (branch_info->rebase) { - printf_ln(_("rebases onto remote %s"), 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_ln(_(" merges with remote %s"), merge->items[0].string); - also = _(" and with remote"); + width++; } else { 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, + printf(_("%-*s and with remote %s\n"), width, "", merge->items[i].string); return 0; @@ -1189,13 +1151,18 @@ static int show(int argc, const char **argv) url_nr = states.remote->url_nr; } for (i = 0; i < url_nr; i++) + /* + * TRANSLATORS: the colon ':' should align + * with the one in " Fetch URL: %s" + * translation. + */ printf_ln(_(" Push URL: %s"), url[i]); if (!i) - printf_ln(_(" Push URL: %s"), "(no URL)"); + printf_ln(_(" Push URL: %s"), _("(no URL)")); if (no_query) - printf_ln(_(" HEAD branch: %s"), "(not queried)"); + printf_ln(_(" HEAD branch: %s"), _("(not queried)")); else if (!states.heads.nr) - printf_ln(_(" HEAD branch: %s"), "(unknown)"); + printf_ln(_(" HEAD branch: %s"), _("(unknown)")); else if (states.heads.nr == 1) printf_ln(_(" HEAD branch: %s"), states.heads.items[0].string); else { @@ -1235,8 +1202,7 @@ static int show(int argc, const char **argv) 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); + QSORT(info.list->items, info.list->nr, cmp_string_with_push); if (info.list->nr) printf_ln(Q_(" Local ref configured for 'git push'%s:", " Local refs configured for 'git push'%s:", @@ -1287,7 +1253,7 @@ static int set_head(int argc, const char **argv) head_name = xstrdup(states.heads.items[0].string); free_remote_ref_states(&states); } else if (opt_d && !opt_a && argc == 1) { - if (delete_ref(buf.buf, NULL, REF_NODEREF)) + if (delete_ref(NULL, buf.buf, NULL, REF_NODEREF)) result |= error(_("Could not delete %s"), buf.buf); } else usage_with_options(builtin_remote_sethead_usage, options); @@ -1337,19 +1303,12 @@ static int prune_remote(const char *remote, int dry_run) string_list_append(&refs_to_prune, item->util); string_list_sort(&refs_to_prune); - if (!dry_run) { - struct strbuf err = STRBUF_INIT; - if (repack_without_refs(&refs_to_prune, &err)) - result |= error("%s", err.buf); - strbuf_release(&err); - } + if (!dry_run) + result |= delete_refs("remote: prune", &refs_to_prune, 0); for_each_string_list_item(item, &states.stale) { const char *refname = item->util; - if (!dry_run) - result |= delete_ref(refname, NULL, 0); - if (dry_run) printf_ln(_(" * [would prune] %s"), abbrev_ref(refname, "refs/remotes/")); @@ -1436,24 +1395,20 @@ static int update(int argc, const char **argv) 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, @@ -1464,18 +1419,15 @@ 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, 1)) + 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; @@ -1500,6 +1452,57 @@ 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, 1)) + 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; @@ -1538,9 +1541,9 @@ 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, 1)) + die(_("No such remote '%s'"), remotename); if (push_mode) { strbuf_addf(&name_buf, "remote.%s.pushurl", remotename); @@ -1556,10 +1559,11 @@ 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; } @@ -1609,6 +1613,8 @@ int cmd_remote(int argc, const char **argv, const char *prefix) 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")) diff --git a/builtin/repack.c b/builtin/repack.c index f2edeb0f4c..38ba4ef825 100644 --- a/builtin/repack.c +++ b/builtin/repack.c @@ -18,6 +18,12 @@ static const char *const git_repack_usage[] = { NULL }; +static const char incremental_bitmap_conflict_error[] = N_( +"Incremental repacks are incompatible with bitmap indexes. Use\n" +"--no-write-bitmap-index or disable the pack.writebitmaps configuration." +); + + static int repack_config(const char *var, const char *value, void *cb) { if (!strcmp(var, "repack.usedeltabaseoffset")) { @@ -146,8 +152,10 @@ int cmd_repack(int argc, const char **argv, const char *prefix) int pack_everything = 0; int delete_redundant = 0; const char *unpack_unreachable = NULL; + int keep_unreachable = 0; const char *window = NULL, *window_memory = NULL; const char *depth = NULL; + const char *threads = NULL; const char *max_pack_size = NULL; int no_reuse_delta = 0, no_reuse_object = 0; int no_update_server_info = 0; @@ -175,12 +183,16 @@ int cmd_repack(int argc, const char **argv, const char *prefix) N_("write bitmap index")), OPT_STRING(0, "unpack-unreachable", &unpack_unreachable, N_("approxidate"), N_("with -A, do not loosen objects older than this")), + OPT_BOOL('k', "keep-unreachable", &keep_unreachable, + N_("with -a, repack unreachable objects")), 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, "threads", &threads, N_("n"), + N_("limits the maximum number of threads")), 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, @@ -193,9 +205,19 @@ int cmd_repack(int argc, const char **argv, const char *prefix) 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 (keep_unreachable && + (unpack_unreachable || (pack_everything & LOOSEN_UNREACHABLE))) + die(_("--keep-unreachable and -A are incompatible")); + if (pack_kept_objects < 0) pack_kept_objects = write_bitmaps; + if (write_bitmaps && !(pack_everything & ALL_INTO_ONE)) + die(_(incremental_bitmap_conflict_error)); + packdir = mkpathdup("%s/pack", get_object_directory()); packtmp = mkpathdup("%s/.tmp-%d-pack", packdir, (int)getpid()); @@ -215,6 +237,8 @@ int cmd_repack(int argc, const char **argv, const char *prefix) argv_array_pushf(&cmd.args, "--window-memory=%s", window_memory); if (depth) argv_array_pushf(&cmd.args, "--depth=%s", depth); + if (threads) + argv_array_pushf(&cmd.args, "--threads=%s", threads); if (max_pack_size) argv_array_pushf(&cmd.args, "--max-pack-size=%s", max_pack_size); if (no_reuse_delta) @@ -236,6 +260,9 @@ int cmd_repack(int argc, const char **argv, const char *prefix) } else if (pack_everything & LOOSEN_UNREACHABLE) { argv_array_push(&cmd.args, "--unpack-unreachable"); + } else if (keep_unreachable) { + argv_array_push(&cmd.args, "--keep-unreachable"); + argv_array_push(&cmd.args, "--pack-loose-unreachable"); } else { argv_array_push(&cmd.env_array, "GIT_REF_PARANOIA=1"); } @@ -263,7 +290,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix) return ret; out = xfdopen(cmd.out, "r"); - while (strbuf_getline(&line, out, '\n') != EOF) { + 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); @@ -293,7 +320,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix) continue; } - fname_old = mkpath("%s/old-%s%s", packdir, + fname_old = mkpathdup("%s/old-%s%s", packdir, item->string, exts[ext].name); if (file_exists(fname_old)) if (unlink(fname_old)) @@ -301,10 +328,12 @@ int cmd_repack(int argc, const char **argv, const char *prefix) 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) @@ -315,10 +344,11 @@ int cmd_repack(int argc, const char **argv, const char *prefix) for_each_string_list_item(item, &rollback) { char *fname, *fname_old; fname = mkpathdup("%s/%s", packdir, item->string); - fname_old = mkpath("%s/old-%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) { @@ -367,12 +397,13 @@ int cmd_repack(int argc, const char **argv, const char *prefix) for_each_string_list_item(item, &names) { for (ext = 0; ext < ARRAY_SIZE(exts); ext++) { char *fname; - fname = mkpath("%s/old-%s%s", - packdir, - item->string, - exts[ext].name); + fname = mkpathdup("%s/old-%s%s", + packdir, + item->string, + exts[ext].name); if (remove_path(fname)) - warning(_("removing '%s' failed"), fname); + warning(_("failed to remove '%s'"), fname); + free(fname); } } diff --git a/builtin/replace.c b/builtin/replace.c index 54bf01acb4..c921bc976f 100644 --- a/builtin/replace.c +++ b/builtin/replace.c @@ -35,7 +35,7 @@ struct show_data { enum replace_format format; }; -static int show_reference(const char *refname, const unsigned char *sha1, +static int show_reference(const char *refname, const struct object_id *oid, int flag, void *cb_data) { struct show_data *data = cb_data; @@ -44,19 +44,19 @@ static int show_reference(const char *refname, const unsigned char *sha1, if (data->format == REPLACE_FORMAT_SHORT) printf("%s\n", refname); else if (data->format == REPLACE_FORMAT_MEDIUM) - printf("%s -> %s\n", refname, sha1_to_hex(sha1)); + printf("%s -> %s\n", refname, oid_to_hex(oid)); else { /* data->format == REPLACE_FORMAT_LONG */ - unsigned char object[20]; + struct object_id object; enum object_type obj_type, repl_type; - if (get_sha1(refname, object)) + if (get_sha1(refname, object.hash)) return error("Failed to resolve '%s' as a valid ref.", refname); - obj_type = sha1_object_info(object, NULL); - repl_type = sha1_object_info(sha1, NULL); + 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), - sha1_to_hex(sha1), typename(repl_type)); + oid_to_hex(oid), typename(repl_type)); } } @@ -82,84 +82,87 @@ static int list_replace_refs(const char *pattern, const char *format) "valid formats are 'short', 'medium' and 'long'\n", format); - for_each_replace_ref(show_reference, (void *) &data); + for_each_replace_ref(show_reference, (void *)&data); return 0; } typedef int (*each_replace_name_fn)(const char *name, const char *ref, - const unsigned char *sha1); + const struct object_id *oid); static int for_each_replace_name(const char **argv, each_replace_name_fn fn) { const char **p, *full_hex; - char ref[PATH_MAX]; + struct strbuf ref = STRBUF_INIT; + size_t base_len; int had_error = 0; - unsigned char sha1[20]; + struct object_id oid; + + strbuf_addstr(&ref, git_replace_ref_base); + base_len = ref.len; for (p = argv; *p; p++) { - if (get_sha1(*p, sha1)) { + if (get_oid(*p, &oid)) { error("Failed to resolve '%s' as a valid ref.", *p); had_error = 1; continue; } - full_hex = sha1_to_hex(sha1); - snprintf(ref, sizeof(ref), "refs/replace/%s", full_hex); - /* read_ref() may reuse the buffer */ - full_hex = ref + strlen("refs/replace/"); - if (read_ref(ref, sha1)) { + + strbuf_setlen(&ref, base_len); + strbuf_addstr(&ref, oid_to_hex(&oid)); + full_hex = ref.buf + base_len; + + if (read_ref(ref.buf, oid.hash)) { error("replace ref '%s' not found.", full_hex); had_error = 1; continue; } - if (fn(full_hex, ref, sha1)) + if (fn(full_hex, ref.buf, &oid)) had_error = 1; } + strbuf_release(&ref); return had_error; } static int delete_replace_ref(const char *name, const char *ref, - const unsigned char *sha1) + const struct object_id *oid) { - if (delete_ref(ref, sha1, 0)) + if (delete_ref(NULL, ref, oid->hash, 0)) return 1; printf("Deleted replace ref '%s'\n", name); return 0; } -static void check_ref_valid(unsigned char object[20], - unsigned char prev[20], - char *ref, - int ref_size, +static void check_ref_valid(struct object_id *object, + struct object_id *prev, + struct strbuf *ref, int force) { - if (snprintf(ref, ref_size, - "refs/replace/%s", - 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); - - if (read_ref(ref, prev)) - hashclr(prev); + strbuf_reset(ref); + strbuf_addf(ref, "%s%s", git_replace_ref_base, oid_to_hex(object)); + if (check_refname_format(ref->buf, 0)) + die("'%s' is not a valid ref name.", ref->buf); + + if (read_ref(ref->buf, prev->hash)) + oidclr(prev); else if (!force) - die("replace ref '%s' already exists", ref); + die("replace ref '%s' already exists", ref->buf); } -static int replace_object_sha1(const char *object_ref, - unsigned char object[20], +static int replace_object_oid(const char *object_ref, + struct object_id *object, const char *replace_ref, - unsigned char repl[20], + struct object_id *repl, int force) { - unsigned char prev[20]; + struct object_id prev; enum object_type obj_type, repl_type; - char ref[PATH_MAX]; + struct strbuf ref = STRBUF_INIT; struct ref_transaction *transaction; struct strbuf err = STRBUF_INIT; - obj_type = sha1_object_info(object, NULL); - repl_type = sha1_object_info(repl, NULL); + obj_type = sha1_object_info(object->hash, NULL); + repl_type = sha1_object_info(repl->hash, 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" @@ -167,29 +170,30 @@ static int replace_object_sha1(const char *object_ref, object_ref, typename(obj_type), replace_ref, typename(repl_type)); - check_ref_valid(object, prev, ref, sizeof(ref), force); + check_ref_valid(object, &prev, &ref, force); transaction = ref_transaction_begin(&err); if (!transaction || - ref_transaction_update(transaction, ref, repl, prev, + ref_transaction_update(transaction, ref.buf, repl->hash, prev.hash, 0, NULL, &err) || ref_transaction_commit(transaction, &err)) die("%s", err.buf); ref_transaction_free(transaction); + strbuf_release(&ref); return 0; } static int replace_object(const char *object_ref, const char *replace_ref, int force) { - unsigned char object[20], repl[20]; + struct object_id object, repl; - if (get_sha1(object_ref, object)) + if (get_oid(object_ref, &object)) die("Failed to resolve '%s' as a valid ref.", object_ref); - if (get_sha1(replace_ref, repl)) + if (get_oid(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); + return replace_object_oid(object_ref, &object, replace_ref, &repl, force); } /* @@ -197,7 +201,7 @@ static int replace_object(const char *object_ref, const char *replace_ref, int f * 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, +static void export_object(const struct object_id *oid, enum object_type type, int raw, const char *filename) { struct child_process cmd = CHILD_PROCESS_INIT; @@ -213,7 +217,7 @@ static void export_object(const unsigned char *sha1, enum object_type type, argv_array_push(&cmd.args, typename(type)); else argv_array_push(&cmd.args, "-p"); - argv_array_push(&cmd.args, sha1_to_hex(sha1)); + argv_array_push(&cmd.args, oid_to_hex(oid)); cmd.git_cmd = 1; cmd.out = fd; @@ -226,7 +230,7 @@ static void export_object(const unsigned char *sha1, enum object_type type, * 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, +static void import_object(struct object_id *oid, enum object_type type, int raw, const char *filename) { int fd; @@ -254,7 +258,7 @@ static void import_object(unsigned char *sha1, enum object_type type, if (finish_command(&cmd)) die("mktree reported failure"); - if (get_sha1_hex(result.buf, sha1) < 0) + if (get_oid_hex(result.buf, oid) < 0) die("mktree did not return an object name"); strbuf_release(&result); @@ -264,7 +268,7 @@ static void import_object(unsigned char *sha1, enum object_type type, if (fstat(fd, &st) < 0) die_errno("unable to fstat %s", filename); - if (index_fd(sha1, fd, &st, type, NULL, flags) < 0) + if (index_fd(oid->hash, fd, &st, type, NULL, flags) < 0) die("unable to write object to database"); /* index_fd close()s fd for us */ } @@ -279,29 +283,30 @@ 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]; + struct object_id old, new, prev; + struct strbuf ref = STRBUF_INIT; - if (get_sha1(object_ref, old) < 0) + if (get_oid(object_ref, &old) < 0) die("Not a valid object name: '%s'", object_ref); - type = sha1_object_info(old, NULL); + type = sha1_object_info(old.hash, NULL); if (type < 0) - die("unable to get object type for %s", sha1_to_hex(old)); + die("unable to get object type for %s", oid_to_hex(&old)); - check_ref_valid(old, prev, ref, sizeof(ref), force); + check_ref_valid(&old, &prev, &ref, force); + strbuf_release(&ref); - export_object(old, type, raw, tmpfile); + export_object(&old, type, raw, tmpfile); if (launch_editor(tmpfile, NULL, NULL) < 0) die("editing object file failed"); - import_object(new, type, raw, tmpfile); + 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)); + if (!oidcmp(&old, &new)) + return error("new object is the same as the old one: '%s'", oid_to_hex(&old)); - return replace_object_sha1(object_ref, old, "replacement", new, force); + return replace_object_oid(object_ref, &old, "replacement", &new, force); } static void replace_parents(struct strbuf *buf, int argc, const char **argv) @@ -312,7 +317,7 @@ static void replace_parents(struct strbuf *buf, int argc, const char **argv) /* find existing parents */ parent_start = buf->buf; - parent_start += 46; /* "tree " + "hex sha1" + "\n" */ + parent_start += GIT_SHA1_HEXSZ + 6; /* "tree " + "hex sha1" + "\n" */ parent_end = parent_start; while (starts_with(parent_end, "parent ")) @@ -320,11 +325,11 @@ static void replace_parents(struct strbuf *buf, int argc, const char **argv) /* prepare new parents */ for (i = 0; i < argc; i++) { - unsigned char sha1[20]; - if (get_sha1(argv[i], sha1) < 0) + struct object_id oid; + if (get_oid(argv[i], &oid) < 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)); + lookup_commit_or_die(&oid, argv[i]); + strbuf_addf(&new_parents, "parent %s\n", oid_to_hex(&oid)); } /* replace existing parents with new ones */ @@ -345,12 +350,12 @@ static void check_one_mergetag(struct commit *commit, { struct check_mergetag_data *mergetag_data = (struct check_mergetag_data *)data; const char *ref = mergetag_data->argv[0]; - unsigned char tag_sha1[20]; + struct object_id tag_oid; struct tag *tag; int i; - hash_sha1_file(extra->value, extra->len, typename(OBJ_TAG), tag_sha1); - tag = lookup_tag(tag_sha1); + hash_sha1_file(extra->value, extra->len, typename(OBJ_TAG), tag_oid.hash); + tag = lookup_tag(&tag_oid); if (!tag) die(_("bad mergetag in commit '%s'"), ref); if (parse_tag_buffer(tag, extra->value, extra->len)) @@ -358,15 +363,15 @@ static void check_one_mergetag(struct commit *commit, /* iterate over new parents */ for (i = 1; i < mergetag_data->argc; i++) { - unsigned char sha1[20]; - if (get_sha1(mergetag_data->argv[i], sha1) < 0) + 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 (!hashcmp(tag->tagged->sha1, sha1)) + 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)); + "use --edit instead of --graft"), ref, oid_to_hex(&tag_oid)); } static void check_mergetags(struct commit *commit, int argc, const char **argv) @@ -380,16 +385,16 @@ static void check_mergetags(struct commit *commit, int argc, const char **argv) static int create_graft(int argc, const char **argv, int force) { - unsigned char old[20], new[20]; + struct object_id old, new; 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) + if (get_oid(old_ref, &old) < 0) die(_("Not a valid object name: '%s'"), old_ref); - commit = lookup_commit_or_die(old, old_ref); + commit = lookup_commit_or_die(&old, old_ref); buffer = get_commit_buffer(commit, &size); strbuf_add(&buf, buffer, size); @@ -404,15 +409,15 @@ static int create_graft(int argc, const char **argv, int force) check_mergetags(commit, argc, argv); - if (write_sha1_file(buf.buf, buf.len, commit_type, new)) + if (write_sha1_file(buf.buf, buf.len, commit_type, new.hash)) 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)); + if (!oidcmp(&old, &new)) + return error("new commit is the same as the old one: '%s'", oid_to_hex(&old)); - return replace_object_sha1(old_ref, old, "replacement", new, force); + return replace_object_oid(old_ref, &old, "replacement", &new, force); } int cmd_replace(int argc, const char **argv, const char *prefix) @@ -440,6 +445,7 @@ int cmd_replace(int argc, const char **argv, const char *prefix) }; check_replace_refs = 0; + git_config(git_default_config, NULL); argc = parse_options(argc, argv, prefix, options, git_replace_usage, 0); diff --git a/builtin/rerere.c b/builtin/rerere.c index be55e0d2a7..1bf72423bf 100644 --- a/builtin/rerere.c +++ b/builtin/rerere.c @@ -51,7 +51,7 @@ static int diff_two(const char *file1, const char *label1, 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, @@ -80,18 +80,16 @@ int cmd_rerere(int argc, const char **argv, const char *prefix) 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) @@ -101,14 +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; - if (diff_two(rerere_path(name, "preimage"), path, path, path)) - die("unable to generate diff for %s", name); + 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 4c08ddc1ca..45001e5200 100644 --- a/builtin/reset.c +++ b/builtin/reset.c @@ -21,10 +21,12 @@ #include "parse-options.h" #include "unpack-trees.h" #include "cache-tree.h" +#include "submodule.h" +#include "submodule-config.h" static const char * const git_reset_usage[] = { N_("git reset [--mixed | --soft | --hard | --merge | --keep] [-q] [<commit>]"), - N_("git reset [-q] <tree-ish> [--] <paths>..."), + N_("git reset [-q] [<tree-ish>] [--] <paths>..."), N_("git reset --patch [<tree-ish>] [--] [<paths>...]"), NULL }; @@ -36,10 +38,10 @@ 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(const unsigned char *sha1, int reset_type, int quiet) +static int reset_index(const struct object_id *oid, int reset_type, int quiet) { int nr = 1; struct tree_desc desc[2]; @@ -69,22 +71,22 @@ static int reset_index(const unsigned char *sha1, int reset_type, int quiet) read_cache_unmerged(); if (reset_type == KEEP) { - unsigned char head_sha1[20]; - if (get_sha1("HEAD", head_sha1)) + struct object_id head_oid; + if (get_oid("HEAD", &head_oid)) return error(_("You do not have a valid HEAD.")); - if (!fill_tree_descriptor(desc, head_sha1)) + if (!fill_tree_descriptor(desc, head_oid.hash)) return error(_("Failed to find tree of HEAD.")); nr++; opts.fn = twoway_merge; } - if (!fill_tree_descriptor(desc + nr - 1, sha1)) - return error(_("Failed to find tree of %s."), sha1_to_hex(sha1)); + if (!fill_tree_descriptor(desc + nr - 1, oid->hash)) + return error(_("Failed to find tree of %s."), oid_to_hex(oid)); if (unpack_trees(nr, desc, &opts)) return -1; if (reset_type == MIXED || reset_type == HARD) { - tree = parse_tree_indirect(sha1); + tree = parse_tree_indirect(oid); prime_cache_tree(&the_index, tree); } @@ -96,14 +98,14 @@ 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); msg = logmsg_reencode(commit, NULL, get_log_output_encoding()); body = strstr(msg, "\n\n"); if (body) { const char *eol; size_t len; - body += 2; + body = skip_blank_lines(body + 2); eol = strchr(body, '\n'); len = eol ? eol - body : strlen(body); printf(" %.*s\n", (int) len, body); @@ -121,7 +123,7 @@ static void update_index_from_diff(struct diff_queue_struct *q, for (i = 0; i < q->nr; i++) { struct diff_filespec *one = q->queue[i]->one; - int is_missing = !(one->mode && !is_null_sha1(one->sha1)); + int is_missing = !(one->mode && !is_null_oid(&one->oid)); struct cache_entry *ce; if (is_missing && !intent_to_add) { @@ -129,7 +131,7 @@ static void update_index_from_diff(struct diff_queue_struct *q, continue; } - ce = make_cache_entry(one->mode, one->sha1, one->path, + ce = make_cache_entry(one->mode, one->oid.hash, one->path, 0, 0); if (!ce) die(_("make_cache_entry failed for path '%s'"), @@ -143,7 +145,7 @@ static void update_index_from_diff(struct diff_queue_struct *q, } static int read_from_tree(const struct pathspec *pathspec, - unsigned char *tree_sha1, + struct object_id *tree_oid, int intent_to_add) { struct diff_options opt; @@ -154,11 +156,11 @@ static int read_from_tree(const struct pathspec *pathspec, opt.format_callback = update_index_from_diff; opt.format_callback_data = &intent_to_add; - if (do_diff_cache(tree_sha1, &opt)) + if (do_diff_cache(tree_oid, &opt)) return 1; diffcore_std(&opt); diff_flush(&opt); - free_pathspec(&opt.pathspec); + clear_pathspec(&opt.pathspec); return 0; } @@ -191,7 +193,7 @@ static void parse_args(struct pathspec *pathspec, const char **rev_ret) { const char *rev = "HEAD"; - unsigned char unused[20]; + struct object_id unused; /* * Possible arguments are: * @@ -216,8 +218,8 @@ static void parse_args(struct pathspec *pathspec, * has to be unambiguous. If there is a single argument, it * can not be a tree */ - else if ((!argv[1] && !get_sha1_committish(argv[0], unused)) || - (argv[1] && !get_sha1_treeish(argv[0], unused))) { + else if ((!argv[1] && !get_sha1_committish(argv[0], unused.hash)) || + (argv[1] && !get_sha1_treeish(argv[0], unused.hash))) { /* * Ok, argv[0] looks like a commit/tree; it should not * be a filename. @@ -236,40 +238,47 @@ static void parse_args(struct pathspec *pathspec, 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) +static int reset_refs(const char *rev, const struct object_id *oid) { int update_ref_status; struct strbuf msg = STRBUF_INIT; - unsigned char *orig = NULL, sha1_orig[20], - *old_orig = NULL, sha1_old_orig[20]; + struct object_id *orig = NULL, oid_orig, + *old_orig = NULL, oid_old_orig; - if (!get_sha1("ORIG_HEAD", sha1_old_orig)) - old_orig = sha1_old_orig; - if (!get_sha1("HEAD", sha1_orig)) { - orig = sha1_orig; + if (!get_oid("ORIG_HEAD", &oid_old_orig)) + old_orig = &oid_old_orig; + if (!get_oid("HEAD", &oid_orig)) { + orig = &oid_orig; set_reflog_message(&msg, "updating ORIG_HEAD", NULL); - update_ref(msg.buf, "ORIG_HEAD", orig, old_orig, 0, + update_ref_oid(msg.buf, "ORIG_HEAD", orig, old_orig, 0, UPDATE_REFS_MSG_ON_ERR); } else if (old_orig) - delete_ref("ORIG_HEAD", old_orig, 0); + delete_ref(NULL, "ORIG_HEAD", old_orig->hash, 0); set_reflog_message(&msg, "updating HEAD", rev); - update_ref_status = update_ref(msg.buf, "HEAD", sha1, orig, 0, + update_ref_status = update_ref_oid(msg.buf, "HEAD", oid, orig, 0, UPDATE_REFS_MSG_ON_ERR); strbuf_release(&msg); return update_ref_status; } +static int git_reset_config(const char *var, const char *value, void *cb) +{ + if (!strcmp(var, "submodule.recurse")) + return git_default_submodule_config(var, value, cb); + + return git_default_config(var, value, cb); +} + 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; - unsigned char sha1[20]; + struct object_id oid; struct pathspec pathspec; int intent_to_add = 0; const struct option options[] = { @@ -283,38 +292,43 @@ int cmd_reset(int argc, const char **argv, const char *prefix) N_("reset HEAD, index and working tree"), MERGE), OPT_SET_INT(0, "keep", &reset_type, N_("reset HEAD but keep local changes"), KEEP), + { OPTION_CALLBACK, 0, "recurse-submodules", NULL, + "reset", "control recursive updating of submodules", + PARSE_OPT_OPTARG, option_parse_recurse_submodules_worktree_updater }, 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() }; - git_config(git_default_config, NULL); + git_config(git_reset_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", sha1); + load_submodule_cache(); + + unborn = !strcmp(rev, "HEAD") && get_sha1("HEAD", oid.hash); if (unborn) { /* reset on unborn branch: treat as reset to empty tree */ - hashcpy(sha1, EMPTY_TREE_SHA1_BIN); + hashcpy(oid.hash, EMPTY_TREE_SHA1_BIN); } else if (!pathspec.nr) { struct commit *commit; - if (get_sha1_committish(rev, sha1)) + if (get_sha1_committish(rev, oid.hash)) die(_("Failed to resolve '%s' as a valid revision."), rev); - commit = lookup_commit_reference(sha1); + commit = lookup_commit_reference(&oid); if (!commit) die(_("Could not parse object '%s'."), rev); - hashcpy(sha1, commit->object.sha1); + oidcpy(&oid, &commit->object.oid); } else { struct tree *tree; - if (get_sha1_treeish(rev, sha1)) + if (get_sha1_treeish(rev, oid.hash)) die(_("Failed to resolve '%s' as a valid tree."), rev); - tree = parse_tree_indirect(sha1); + tree = parse_tree_indirect(&oid); if (!tree) die(_("Could not parse object '%s'."), rev); - hashcpy(sha1, tree->object.sha1); + oidcpy(&oid, &tree->object.oid); } if (patch_mode) { @@ -354,18 +368,18 @@ int cmd_reset(int argc, const char **argv, const char *prefix) if (reset_type != SOFT) { struct lock_file *lock = xcalloc(1, sizeof(*lock)); - hold_locked_index(lock, 1); + hold_locked_index(lock, LOCK_DIE_ON_ERROR); if (reset_type == MIXED) { int flags = quiet ? REFRESH_QUIET : REFRESH_IN_PORCELAIN; - if (read_from_tree(&pathspec, sha1, intent_to_add)) + if (read_from_tree(&pathspec, &oid, 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(sha1, reset_type, quiet); + int err = reset_index(&oid, reset_type, quiet); if (reset_type == KEEP && !err) - err = reset_index(sha1, MIXED, quiet); + err = reset_index(&oid, MIXED, quiet); if (err) die(_("Could not reset index file to revision '%s'."), rev); } @@ -377,10 +391,10 @@ int cmd_reset(int argc, const char **argv, const char *prefix) 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, sha1); + update_ref_status = reset_refs(rev, &oid); if (reset_type == HARD && !update_ref_status && !quiet) - print_new_head_line(lookup_commit_reference(sha1)); + print_new_head_line(lookup_commit_reference(&oid)); } if (!pathspec.nr) remove_branch_state(); diff --git a/builtin/rev-list.c b/builtin/rev-list.c index c0b4b53652..718c6059c9 100644 --- a/builtin/rev-list.c +++ b/builtin/rev-list.c @@ -9,6 +9,7 @@ #include "log-tree.h" #include "graph.h" #include "bisect.h" +#include "progress.h" static const char rev_list_usage[] = "git rev-list [OPTION] <commit-id>... [ -- paths... ]\n" @@ -49,12 +50,17 @@ static const char rev_list_usage[] = " --bisect-all" ; +static struct progress *progress; +static unsigned progress_counter; + static void finish_commit(struct commit *commit, void *data); static void show_commit(struct commit *commit, void *data) { struct rev_list_info *info = data; struct rev_info *revs = info->revs; + display_progress(progress, ++progress_counter); + if (info->flags & REV_LIST_QUIET) { finish_commit(commit, data); return; @@ -74,21 +80,21 @@ static void show_commit(struct commit *commit, void *data) } if (info->show_timestamp) - printf("%lu ", commit->date); + printf("%"PRItime" ", commit->date); if (info->header_prefix) fputs(info->header_prefix, stdout); 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; } } @@ -97,7 +103,7 @@ 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; } } @@ -116,48 +122,40 @@ static void show_commit(struct commit *commit, void *data) ctx.fmt = revs->commit_format; ctx.output_encoding = get_log_output_encoding(); pretty_print_commit(&ctx, commit, &buf); - if (revs->graph) { - if (buf.len) { - if (revs->commit_format != CMIT_FMT_ONELINE) - graph_show_oneline(revs->graph); - - graph_show_commit_msg(revs->graph, &buf); - - /* - * Add a newline after the commit message. - * - * Usually, this newline produces a blank - * padding line between entries, in which case - * we need to add graph padding on this line. - * - * However, the commit message may not end in a - * newline. In this case the newline simply - * ends the last line of the commit message, - * and we don't need any graph output. (This - * always happens with CMIT_FMT_ONELINE, and it - * happens with CMIT_FMT_USERFORMAT when the - * format doesn't explicitly end in a newline.) - */ - if (buf.len && buf.buf[buf.len - 1] == '\n') - graph_show_padding(revs->graph); - putchar('\n'); - } else { - /* - * If the message buffer is empty, just show - * the rest of the graph output for this - * commit. - */ - if (graph_show_remainder(revs->graph)) - putchar('\n'); - if (revs->commit_format == CMIT_FMT_ONELINE) - putchar('\n'); - } + if (buf.len) { + if (revs->commit_format != CMIT_FMT_ONELINE) + graph_show_oneline(revs->graph); + + graph_show_commit_msg(revs->graph, stdout, &buf); + + /* + * Add a newline after the commit message. + * + * Usually, this newline produces a blank + * padding line between entries, in which case + * we need to add graph padding on this line. + * + * However, the commit message may not end in a + * newline. In this case the newline simply + * ends the last line of the commit message, + * and we don't need any graph output. (This + * always happens with CMIT_FMT_ONELINE, and it + * happens with CMIT_FMT_USERFORMAT when the + * format doesn't explicitly end in a newline.) + */ + if (buf.len && buf.buf[buf.len - 1] == '\n') + graph_show_padding(revs->graph); + putchar(info->hdr_termination); } else { - if (revs->commit_format != CMIT_FMT_USERFORMAT || - buf.len) { - fwrite(buf.buf, 1, buf.len, stdout); - putchar(info->hdr_termination); - } + /* + * If the message buffer is empty, just show + * the rest of the graph output for this + * commit. + */ + if (graph_show_remainder(revs->graph)) + putchar('\n'); + if (revs->commit_format == CMIT_FMT_ONELINE) + putchar('\n'); } strbuf_release(&buf); } else { @@ -177,31 +175,28 @@ static void finish_commit(struct commit *commit, void *data) 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) { struct rev_list_info *info = cb_data; - if (obj->type == OBJ_BLOB && !has_sha1_file(obj->sha1)) - die("missing blob object '%s'", sha1_to_hex(obj->sha1)); + 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->sha1); + parse_object(&obj->oid); } -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_list_info *info = cb_data; - finish_object(obj, path, component, cb_data); + finish_object(obj, name, cb_data); + display_progress(progress, ++progress_counter); if (info->flags & REV_LIST_QUIET) return; - show_object_with_name(stdout, obj, path, component); + show_object_with_name(stdout, obj, name); } static void show_edge(struct commit *commit) { - printf("-%s\n", sha1_to_hex(commit->object.sha1)); + printf("-%s\n", oid_to_hex(&commit->object.oid)); } static void print_var_str(const char *var, const char *val) @@ -217,7 +212,7 @@ 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->flags; - char hex[41] = ""; + char hex[GIT_MAX_HEXSZ + 1] = ""; struct commit_list *tried; struct rev_info *revs = info->revs; @@ -242,7 +237,7 @@ 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)); + oid_to_hex_r(hex, &revs->commits->item->object.oid); if (flags & BISECT_SHOW_ALL) { traverse_commit_list(revs, show_commit, show_object, info); @@ -280,6 +275,7 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix) int bisect_show_vars = 0; int bisect_find_all = 0; int use_bitmap_index = 0; + const char *show_progress = NULL; git_config(git_default_config, NULL); init_revisions(&revs, prefix); @@ -329,6 +325,10 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix) test_bitmap_walk(&revs); return 0; } + if (skip_prefix(arg, "--progress=", &arg)) { + show_progress = arg; + continue; + } usage(rev_list_usage); } @@ -350,21 +350,31 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix) 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 (show_progress) + progress = start_progress_delay(show_progress, 0, 0, 2); + 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.tag_objects && revs.tree_objects && revs.blob_objects) { + } 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; @@ -389,6 +399,8 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix) traverse_commit_list(&revs, show_commit, show_object, &info); + stop_progress(&progress); + if (revs.count) { if (revs.left_right && revs.cherry_mark) printf("%d\t%d\t%d\n", revs.count_left, revs.count_right, revs.count_same); diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c index 3626c61da6..efdc14473b 100644 --- a/builtin/rev-parse.c +++ b/builtin/rev-parse.c @@ -12,6 +12,7 @@ #include "diff.h" #include "revision.h" #include "split-index.h" +#include "submodule.h" #define DO_REVS 1 #define DO_NOREV 2 @@ -120,7 +121,7 @@ static void show_with_type(int type, const char *arg) } /* Output a revision, only if filter allows it */ -static void show_rev(int type, const unsigned char *sha1, const char *name) +static void show_rev(int type, const struct object_id *oid, const char *name) { if (!(filter & DO_REVS)) return; @@ -128,10 +129,10 @@ static void show_rev(int type, const unsigned char *sha1, const char *name) if ((symbolic || abbrev_ref) && name) { if (symbolic == SHOW_SYMBOLIC_FULL || abbrev_ref) { - unsigned char discard[20]; + struct object_id discard; char *full; - switch (dwim_ref(name, strlen(name), discard, &full)) { + switch (dwim_ref(name, strlen(name), discard.hash, &full)) { case 0: /* * Not found -- not a ref. We could @@ -157,9 +158,9 @@ static void show_rev(int type, const unsigned char *sha1, const char *name) } } else if (abbrev) - show_with_type(type, find_unique_abbrev(sha1, abbrev)); + show_with_type(type, find_unique_abbrev(oid->hash, abbrev)); else - show_with_type(type, sha1_to_hex(sha1)); + show_with_type(type, oid_to_hex(oid)); } /* Output a flag, only if filter allows it. */ @@ -179,46 +180,47 @@ static int show_default(void) const char *s = def; if (s) { - unsigned char sha1[20]; + struct object_id oid; def = NULL; - if (!get_sha1(s, sha1)) { - show_rev(NORMAL, sha1, s); + if (!get_oid(s, &oid)) { + show_rev(NORMAL, &oid, s); return 1; } } 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) { if (ref_excluded(ref_excludes, refname)) return 0; - show_rev(NORMAL, sha1, refname); + show_rev(NORMAL, oid, 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, refname); return 0; } -static int show_abbrev(const unsigned char *sha1, void *cb_data) +static int show_abbrev(const struct object_id *oid, void *cb_data) { - show_rev(NORMAL, sha1, NULL); + show_rev(NORMAL, oid, NULL); return 0; } static void show_datestring(const char *flag, const char *datestr) { - static char buffer[100]; + char *buffer; /* date handling requires both flags and revs */ if ((filter & (DO_FLAGS | DO_REVS)) != (DO_FLAGS | DO_REVS)) return; - snprintf(buffer, sizeof(buffer), "%s%lu", flag, approxidate(datestr)); + buffer = xstrfmt("%s%"PRItime, flag, approxidate(datestr)); show(buffer); + free(buffer); } static int show_file(const char *arg, int output_prefix) @@ -227,9 +229,9 @@ static int show_file(const char *arg, int output_prefix) if ((filter & (DO_NONFLAGS|DO_NOREV)) == (DO_NONFLAGS|DO_NOREV)) { if (output_prefix) { const char *prefix = startup_info->prefix; - show(prefix_filename(prefix, - prefix ? strlen(prefix) : 0, - arg)); + char *fname = prefix_filename(prefix, arg); + show(fname); + free(fname); } else show(arg); return 1; @@ -240,8 +242,8 @@ static int show_file(const char *arg, int output_prefix) static int try_difference(const char *arg) { char *dotdot; - unsigned char sha1[20]; - unsigned char end[20]; + struct object_id oid; + struct object_id end; const char *next; const char *this; int symmetric; @@ -271,21 +273,18 @@ static int try_difference(const char *arg) 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 (!get_sha1_committish(this, oid.hash) && !get_sha1_committish(next, end.hash)) { + show_rev(NORMAL, &end, next); + show_rev(symmetric ? NORMAL : REVERSED, &oid, this); if (symmetric) { struct commit_list *exclude; struct commit *a, *b; - a = lookup_commit_reference(sha1); - b = lookup_commit_reference(end); + a = lookup_commit_reference(&oid); + b = lookup_commit_reference(&end); 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, NULL); } } *dotdot = '.'; @@ -298,31 +297,64 @@ static int try_difference(const char *arg) static int try_parent_shorthands(const char *arg) { char *dotdot; - unsigned char sha1[20]; + struct object_id oid; struct commit *commit; struct commit_list *parents; - int parents_only; - - if ((dotdot = strstr(arg, "^!"))) - parents_only = 0; - else if ((dotdot = strstr(arg, "^@"))) - parents_only = 1; - - if (!dotdot || dotdot[2]) + int parent_number; + int include_rev = 0; + int include_parents = 0; + int exclude_parent = 0; + + if ((dotdot = strstr(arg, "^!"))) { + include_rev = 1; + if (dotdot[2]) + return 0; + } else if ((dotdot = strstr(arg, "^@"))) { + include_parents = 1; + if (dotdot[2]) + return 0; + } else if ((dotdot = strstr(arg, "^-"))) { + include_rev = 1; + exclude_parent = 1; + + if (dotdot[2]) { + char *end; + exclude_parent = strtoul(dotdot + 2, &end, 10); + if (*end != '\0' || !exclude_parent) + return 0; + } + } else return 0; *dotdot = 0; - if (get_sha1_committish(arg, sha1)) { + if (get_sha1_committish(arg, oid.hash)) { *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); + commit = lookup_commit_reference(&oid); + if (exclude_parent && + exclude_parent > commit_list_count(commit->parents)) { + *dotdot = '^'; + return 0; + } + + if (include_rev) + show_rev(NORMAL, &oid, arg); + for (parents = commit->parents, parent_number = 1; + parents; + parents = parents->next, parent_number++) { + char *name = NULL; + + if (exclude_parent && parent_number != exclude_parent) + continue; + + if (symbolic) + name = xstrfmt("%s^%d", arg, parent_number); + show_rev(include_parents ? NORMAL : REVERSED, + &parents->item->object.oid, name); + free(name); + } *dotdot = '^'; return 1; @@ -371,6 +403,7 @@ static int cmd_parseopt(int argc, const char **argv, const char *prefix) 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; @@ -385,7 +418,7 @@ 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)) { @@ -398,9 +431,9 @@ static int cmd_parseopt(int argc, const char **argv, const char *prefix) } /* parse: (<short>|<short>,<long>|<long>)[*=?!]*<arghint>? SP+ <help> */ - while (strbuf_getline(&sb, stdin, '\n') != EOF) { + while (strbuf_getline(&sb, stdin) != EOF) { const char *s; - const char *end; + const char *help; struct option *o; if (!sb.len) @@ -410,54 +443,56 @@ 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; - /* Possible argument name hint */ - end = s; - while (s > sb.buf && strchr("*=?!", s[-1]) == NULL) - --s; - if (s != sb.buf && s != end) - o->argh = xmemdupz(s, end - s); - if (s == sb.buf) - s = end; - - 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); @@ -469,7 +504,7 @@ static int cmd_parseopt(int argc, const char **argv, const char *prefix) (stop_at_non_option ? PARSE_OPT_STOP_AT_NON_OPTION : 0) | PARSE_OPT_SHELL_EVAL); - strbuf_addf(&parsed, " --"); + strbuf_addstr(&parsed, " --"); sq_quote_argv(&parsed, argv, 0); puts(parsed.buf); return 0; @@ -502,15 +537,45 @@ N_("git rev-parse --parseopt [<options>] -- [<args>...]\n" "\n" "Run \"git rev-parse --parseopt -h\" for more information on the first usage."); +/* + * Parse "opt" or "opt=<value>", setting value respectively to either + * NULL or the string after "=". + */ +static int opt_with_value(const char *arg, const char *opt, const char **value) +{ + if (skip_prefix(arg, opt, &arg)) { + if (!*arg) { + *value = NULL; + return 1; + } + if (*arg++ == '=') { + *value = arg; + return 1; + } + } + return 0; +} + +static void handle_ref_opt(const char *pattern, const char *prefix) +{ + if (pattern) + for_each_glob_ref_in(show_reference, pattern, prefix, NULL); + else + for_each_ref_in(prefix, show_reference, NULL); + clear_ref_exclusion(&ref_excludes); +} + 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]; + struct object_id oid; unsigned int flags = 0; const char *name = NULL; struct object_context unused; + struct strbuf buf = STRBUF_INIT; if (argc > 1 && !strcmp("--parseopt", argv[1])) return cmd_parseopt(argc - 1, argv + 1, prefix); @@ -528,11 +593,49 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) } } - prefix = setup_git_directory(); - git_config(git_default_config, NULL); + /* 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; + } + 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"); + strbuf_reset(&buf); + puts(relative_path(git_path("%s", argv[i + 1]), + prefix, &buf)); + i++; + continue; + } if (as_is) { if (show_file(arg, output_prefix) && as_is < 2) verify_filename(prefix, arg, 0); @@ -601,13 +704,13 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) flags |= GET_SHA1_QUIETLY; continue; } - if (!strcmp(arg, "--short") || - starts_with(arg, "--short=")) { + if (opt_with_value(arg, "--short", &arg)) { filter &= ~(DO_FLAGS|DO_NOREV); verify = 1; abbrev = DEFAULT_ABBREV; - if (arg[7] == '=') - abbrev = strtoul(arg + 8, NULL, 10); + if (!arg) + continue; + abbrev = strtoul(arg, NULL, 10); if (abbrev < MINIMUM_ABBREV) abbrev = MINIMUM_ABBREV; else if (40 <= abbrev) @@ -630,17 +733,17 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) symbolic = SHOW_SYMBOLIC_FULL; continue; } - if (starts_with(arg, "--abbrev-ref") && - (!arg[12] || arg[12] == '=')) { + if (opt_with_value(arg, "--abbrev-ref", &arg)) { abbrev_ref = 1; abbrev_ref_strict = warn_ambiguous_refs; - if (arg[12] == '=') { - if (!strcmp(arg + 13, "strict")) + if (arg) { + if (!strcmp(arg, "strict")) abbrev_ref_strict = 1; - else if (!strcmp(arg + 13, "loose")) + else if (!strcmp(arg, "loose")) abbrev_ref_strict = 0; else - die("unknown mode for %s", arg); + die("unknown mode for --abbrev-ref: %s", + arg); } continue; } @@ -648,8 +751,8 @@ 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); + if (skip_prefix(arg, "--disambiguate=", &arg)) { + for_each_abbrev(arg, show_abbrev, NULL); continue; } if (!strcmp(arg, "--bisect")) { @@ -657,52 +760,24 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) for_each_ref_in("refs/bisect/good", anti_reference, NULL); continue; } - 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); + if (opt_with_value(arg, "--branches", &arg)) { + handle_ref_opt(arg, "refs/heads/"); continue; } - if (starts_with(arg, "--tags=")) { - for_each_glob_ref_in(show_reference, arg + 7, - "refs/tags/", NULL); - clear_ref_exclusion(&ref_excludes); + if (opt_with_value(arg, "--tags", &arg)) { + handle_ref_opt(arg, "refs/tags/"); continue; } - if (!strcmp(arg, "--tags")) { - for_each_tag_ref(show_reference, NULL); - clear_ref_exclusion(&ref_excludes); + if (skip_prefix(arg, "--glob=", &arg)) { + handle_ref_opt(arg, NULL); continue; } - if (starts_with(arg, "--glob=")) { - for_each_glob_ref(show_reference, arg + 7, NULL); - clear_ref_exclusion(&ref_excludes); + if (opt_with_value(arg, "--remotes", &arg)) { + handle_ref_opt(arg, "refs/remotes/"); continue; } - 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, "--local-env-vars")) { - int i; - for (i = 0; local_repo_env[i]; i++) - printf("%s\n", local_repo_env[i]); + if (skip_prefix(arg, "--exclude=", &arg)) { + add_ref_exclusion(&ref_excludes, arg); continue; } if (!strcmp(arg, "--show-toplevel")) { @@ -711,6 +786,12 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) puts(work_tree); continue; } + if (!strcmp(arg, "--show-superproject-working-tree")) { + const char *superproject = get_superproject_working_tree(); + if (superproject) + puts(superproject); + continue; + } if (!strcmp(arg, "--show-prefix")) { if (prefix) puts(prefix); @@ -737,17 +818,27 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) putchar('\n'); continue; } - if (!strcmp(arg, "--git-dir")) { + if (!strcmp(arg, "--git-dir") || + !strcmp(arg, "--absolute-git-dir")) { const char *gitdir = getenv(GIT_DIR_ENVIRONMENT); char *cwd; int len; - if (gitdir) { - puts(gitdir); - continue; - } - if (!prefix) { - puts(".git"); - continue; + if (arg[2] == 'g') { /* --git-dir */ + if (gitdir) { + puts(gitdir); + continue; + } + if (!prefix) { + puts(".git"); + continue; + } + } else { /* --absolute-git-dir */ + if (!gitdir && !prefix) + gitdir = ".git"; + if (gitdir) { + puts(real_path(gitdir)); + continue; + } } cwd = xgetcwd(); len = strlen(cwd); @@ -755,14 +846,10 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) free(cwd); 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); + if (!strcmp(arg, "--git-common-dir")) { + strbuf_reset(&buf); + puts(relative_path(get_git_common_dir(), + prefix, &buf)); continue; } if (!strcmp(arg, "--is-inside-git-dir")) { @@ -785,24 +872,26 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) 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))); + const char *path = git_path("sharedindex.%s", sha1_to_hex(sha1)); + strbuf_reset(&buf); + puts(relative_path(path, prefix, &buf)); } continue; } - if (starts_with(arg, "--since=")) { - show_datestring("--max-age=", arg+8); + if (skip_prefix(arg, "--since=", &arg)) { + show_datestring("--max-age=", arg); continue; } - if (starts_with(arg, "--after=")) { - show_datestring("--max-age=", arg+8); + if (skip_prefix(arg, "--after=", &arg)) { + show_datestring("--max-age=", arg); continue; } - if (starts_with(arg, "--before=")) { - show_datestring("--min-age=", arg+9); + if (skip_prefix(arg, "--before=", &arg)) { + show_datestring("--min-age=", arg); continue; } - if (starts_with(arg, "--until=")) { - show_datestring("--min-age=", arg+8); + if (skip_prefix(arg, "--until=", &arg)) { + show_datestring("--min-age=", arg); continue; } if (show_flag(arg) && verify) @@ -821,11 +910,11 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) name++; type = REVERSED; } - if (!get_sha1_with_context(name, flags, sha1, &unused)) { + if (!get_sha1_with_context(name, flags, oid.hash, &unused)) { if (verify) revs_count++; else - show_rev(type, sha1, name); + show_rev(type, &oid, name); continue; } if (verify) @@ -837,9 +926,10 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) continue; verify_filename(prefix, arg, 1); } + strbuf_release(&buf); if (verify) { if (revs_count == 1) { - show_rev(type, sha1, name); + show_rev(type, &oid, name); return 0; } else if (revs_count == 0 && show_default()) return 0; diff --git a/builtin/revert.c b/builtin/revert.c index 56a2c36669..345d9586a7 100644 --- a/builtin/revert.c +++ b/builtin/revert.c @@ -54,6 +54,24 @@ static int option_parse_x(const struct option *opt, return 0; } +static int option_parse_m(const struct option *opt, + const char *arg, int unset) +{ + struct replay_opts *replay = opt->value; + char *end; + + if (unset) { + replay->mainline = 0; + return 0; + } + + replay->mainline = strtol(arg, &end, 10); + if (*end || replay->mainline <= 0) + return opterror(opt, "expects a number greater than zero", 0); + + return 0; +} + LAST_ARG_MUST_BE_NULL static void verify_opt_compatible(const char *me, const char *base_opt, ...) { @@ -71,12 +89,12 @@ 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 parse_args(int argc, const char **argv, struct replay_opts *opts) +static int run_sequencer(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 cmd = 0; - struct option options[] = { + struct option base_options[] = { 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'), @@ -84,20 +102,17 @@ static void parse_args(int argc, const char **argv, struct replay_opts *opts) OPT_BOOL('e', "edit", &opts->edit, N_("edit the commit message")), OPT_NOOP_NOARG('r', NULL), OPT_BOOL('s', "signoff", &opts->signoff, N_("add Signed-off-by:")), - OPT_INTEGER('m', "mainline", &opts->mainline, N_("parent number")), + OPT_CALLBACK('m', "mainline", opts, N_("parent-number"), + N_("select mainline parent"), option_parse_m), OPT_RERERE_AUTOUPDATE(&opts->allow_rerere_auto), 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(), + OPT_END() }; + struct option *options = base_options; if (opts->action == REPLAY_PICK) { struct option cp_extra[] = { @@ -108,8 +123,7 @@ static void parse_args(int argc, const char **argv, struct replay_opts *opts) 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)) - die(_("program error")); + options = parse_options_concat(options, cp_extra); } argc = parse_options(argc, argv, NULL, options, usage_str, @@ -120,25 +134,15 @@ static void parse_args(int argc, const char **argv, struct replay_opts *opts) if (opts->keep_redundant_commits) opts->allow_empty = 1; - /* Set the subcommand */ - if (cmd == 'q') - opts->subcommand = REPLAY_REMOVE_STATE; - else if (cmd == 'c') - opts->subcommand = REPLAY_CONTINUE; - else if (cmd == 'a') - opts->subcommand = REPLAY_ROLLBACK; - else - opts->subcommand = REPLAY_NONE; - /* Check for incompatible command line arguments */ - if (opts->subcommand != REPLAY_NONE) { + if (cmd) { char *this_operation; - if (opts->subcommand == REPLAY_REMOVE_STATE) + if (cmd == 'q') this_operation = "--quit"; - else if (opts->subcommand == REPLAY_CONTINUE) + else if (cmd == 'c') this_operation = "--continue"; else { - assert(opts->subcommand == REPLAY_ROLLBACK); + assert(cmd == 'a'); this_operation = "--abort"; } @@ -161,7 +165,7 @@ static void parse_args(int argc, const char **argv, struct replay_opts *opts) "--edit", opts->edit, NULL); - if (opts->subcommand != REPLAY_NONE) { + if (cmd) { opts->revs = NULL; } else { struct setup_revision_opt s_r_opt; @@ -179,20 +183,30 @@ static void parse_args(int argc, const char **argv, struct replay_opts *opts) if (argc > 1) usage_with_options(usage_str, options); + + /* These option values will be free()d */ + opts->gpg_sign = xstrdup_or_null(opts->gpg_sign); + opts->strategy = xstrdup_or_null(opts->strategy); + + if (cmd == 'q') + return sequencer_remove_state(opts); + if (cmd == 'c') + return sequencer_continue(opts); + if (cmd == 'a') + return sequencer_rollback(opts); + return sequencer_pick_revisions(opts); } int cmd_revert(int argc, const char **argv, const char *prefix) { - struct replay_opts opts; + struct replay_opts opts = REPLAY_OPTS_INIT; int res; - memset(&opts, 0, sizeof(opts)); if (isatty(0)) opts.edit = 1; opts.action = REPLAY_REVERT; git_config(git_default_config, NULL); - parse_args(argc, argv, &opts); - res = sequencer_pick_revisions(&opts); + res = run_sequencer(argc, argv, &opts); if (res < 0) die(_("revert failed")); return res; @@ -200,14 +214,12 @@ int cmd_revert(int argc, const char **argv, const char *prefix) int cmd_cherry_pick(int argc, const char **argv, const char *prefix) { - struct replay_opts opts; + struct replay_opts opts = REPLAY_OPTS_INIT; int res; - memset(&opts, 0, sizeof(opts)); opts.action = REPLAY_PICK; git_config(git_default_config, NULL); - parse_args(argc, argv, &opts); - res = sequencer_pick_revisions(&opts); + res = run_sequencer(argc, argv, &opts); if (res < 0) die(_("cherry-pick failed")); return res; diff --git a/builtin/rm.c b/builtin/rm.c index 80b972f92f..b39f10fcb6 100644 --- a/builtin/rm.c +++ b/builtin/rm.c @@ -59,27 +59,9 @@ static void print_error_files(struct string_list *files_list, } } -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) +static void submodules_absorb_gitdir_if_needed(const char *prefix) { 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; @@ -99,15 +81,12 @@ static int check_submodules_use_gitfiles(void) continue; if (!submodule_uses_gitfile(name)) - string_list_append(&files, name); + absorb_git_dir_into_superproject(prefix, name, + ABSORB_GITDIR_RECURSE_SUBMODULES); } - - error_removing_concrete_submodules(&files, &errs); - - return errs; } -static int check_local_mod(unsigned char *head, int index_only) +static int check_local_mod(struct object_id *head, int index_only) { /* * Items in list are already sorted in the cache order, @@ -120,16 +99,15 @@ static int check_local_mod(unsigned char *head, int index_only) 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); + no_head = is_null_oid(head); for (i = 0; i < list.nr; i++) { struct stat st; int pos; const struct cache_entry *ce; const char *name = list.entry[i].name; - unsigned char sha1[20]; + struct object_id oid; unsigned mode; int local_changes = 0; int staged_changes = 0; @@ -151,8 +129,8 @@ static int check_local_mod(unsigned char *head, int index_only) ce = active_cache[pos]; if (lstat(ce->name, &st) < 0) { - if (errno != ENOENT && errno != ENOTDIR) - warning("'%s': %s", ce->name, strerror(errno)); + if (!is_missing_file_error(errno)) + warning_errno(_("failed to stat '%s'"), ce->name); /* It already vanished from the working tree */ continue; } @@ -187,7 +165,9 @@ static int check_local_mod(unsigned char *head, int index_only) */ if (ce_match_stat(ce, &st, 0) || (S_ISGITLINK(ce->ce_mode) && - !ok_to_remove_submodule(ce->name))) + bad_to_remove_submodule(ce->name, + SUBMODULE_REMOVAL_DIE_ON_ERROR | + SUBMODULE_REMOVAL_IGNORE_IGNORED_UNTRACKED))) local_changes = 1; /* @@ -197,9 +177,9 @@ static int check_local_mod(unsigned char *head, int index_only) * way as changed from the HEAD. */ if (no_head - || get_tree_entry(head, name, sha1, &mode) + || get_tree_entry(head->hash, name, oid.hash, &mode) || ce->ce_mode != create_ce_mode(mode) - || hashcmp(ce->sha1, sha1)) + || oidcmp(&ce->oid, &oid)) staged_changes = 1; /* @@ -211,19 +191,14 @@ 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)) + if (!index_only || !ce_intent_to_add(ce)) string_list_append(&files_staged, name); } else if (!index_only) { if (staged_changes) 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); - } + if (local_changes) + string_list_append(&files_local, name); } } print_error_files(&files_staged, @@ -245,8 +220,6 @@ static int check_local_mod(unsigned char *head, int index_only) &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:", @@ -292,14 +265,13 @@ int cmd_rm(int argc, const char **argv, const char *prefix) if (!index_only) setup_work_tree(); - hold_locked_index(&lock_file, 1); + hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR); if (read_cache() < 0) die(_("index file corrupt")); parse_pathspec(&pathspec, 0, - PATHSPEC_PREFER_CWD | - PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP, + PATHSPEC_PREFER_CWD, prefix, argv); refresh_index(&the_index, REFRESH_QUIET, &pathspec, NULL, NULL); @@ -314,7 +286,7 @@ int cmd_rm(int argc, const char **argv, const char *prefix) 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")); + die (_("Please stage your changes to .gitmodules or stash them to proceed")); } if (pathspec.nr) { @@ -340,6 +312,9 @@ int cmd_rm(int argc, const char **argv, const char *prefix) exit(0); } + if (!index_only) + submodules_absorb_gitdir_if_needed(prefix); + /* * If not forced, the file, the index and the HEAD (if exists) * must match; but the file can already been removed, since @@ -351,13 +326,10 @@ int cmd_rm(int argc, const char **argv, const char *prefix) * report no changes unless forced. */ if (!force) { - unsigned char sha1[20]; - if (get_sha1("HEAD", sha1)) - hashclr(sha1); - if (check_local_mod(sha1, index_only)) - exit(1); - } else if (!index_only) { - if (check_submodules_use_gitfiles()) + struct object_id oid; + if (get_oid("HEAD", &oid)) + oidclr(&oid); + if (check_local_mod(&oid, index_only)) exit(1); } @@ -387,32 +359,19 @@ int cmd_rm(int argc, const char **argv, const char *prefix) */ if (!index_only) { int removed = 0, gitmodules_modified = 0; + struct strbuf buf = STRBUF_INIT; for (i = 0; i < list.nr; 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. */ - } + strbuf_reset(&buf); + strbuf_addstr(&buf, path); + if (remove_dir_recursively(&buf, 0)) + die(_("could not remove '%s'"), path); + + removed = 1; + if (!remove_path_from_gitmodules(path)) + gitmodules_modified = 1; + continue; } if (!remove_path(path)) { removed = 1; @@ -421,6 +380,7 @@ int cmd_rm(int argc, const char **argv, const char *prefix) if (!removed) die_errno("git rm: '%s'", path); } + strbuf_release(&buf); if (gitmodules_modified) stage_updated_gitmodules(); } diff --git a/builtin/send-pack.c b/builtin/send-pack.c index b961e5ae78..b8e2e74fe0 100644 --- a/builtin/send-pack.c +++ b/builtin/send-pack.c @@ -11,10 +11,16 @@ #include "transport.h" #include "version.h" #include "sha1-array.h" +#include "gpg-interface.h" +#include "gettext.h" -static const char send_pack_usage[] = -"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."; +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; @@ -91,6 +97,31 @@ static void print_helper_status(struct ref *ref) strbuf_release(&buf); } +static int send_pack_config(const char *k, const char *v, void *cb) +{ + 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); + } + } + } + return 0; +} + int cmd_send_pack(int argc, const char **argv, const char *prefix) { int i, nr_refspecs = 0; @@ -100,120 +131,79 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix) const char *dest = NULL; int fd[2]; struct child_process *conn; - struct sha1_array extra_have = SHA1_ARRAY_INIT; - struct sha1_array shallow = SHA1_ARRAY_INIT; + struct oid_array extra_have = OID_ARRAY_INIT; + struct oid_array shallow = OID_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; + struct string_list push_options = STRING_LIST_INIT_NODUP; + unsigned use_thin_pack = 0; + unsigned atomic = 0; + unsigned stateless_rpc = 0; int flags; unsigned int reject_reasons; int progress = -1; int from_stdin = 0; struct push_cas_option cas = {0}; - argv++; - for (i = 1; i < argc; i++, argv++) { - const char *arg = *argv; - - if (*arg == '-') { - if (starts_with(arg, "--receive-pack=")) { - receivepack = arg + 15; - continue; - } - if (starts_with(arg, "--exec=")) { - receivepack = arg + 7; - continue; - } - if (starts_with(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, "--quiet")) { - args.quiet = 1; - continue; - } - if (!strcmp(arg, "--verbose")) { - args.verbose = 1; - continue; - } - if (!strcmp(arg, "--signed")) { - args.push_cert = 1; - continue; - } - if (!strcmp(arg, "--progress")) { - progress = 1; - continue; - } - if (!strcmp(arg, "--no-progress")) { - progress = 0; - continue; - } - if (!strcmp(arg, "--thin")) { - args.use_thin_pack = 1; - continue; - } - if (!strcmp(arg, "--atomic")) { - args.atomic = 1; - continue; - } - if (!strcmp(arg, "--stateless-rpc")) { - args.stateless_rpc = 1; - continue; - } - if (!strcmp(arg, "--stdin")) { - from_stdin = 1; - continue; - } - if (!strcmp(arg, "--helper-status")) { - helper_status = 1; - continue; - } - if (!strcmp(arg, "--" CAS_OPT_NAME)) { - if (parse_push_cas_option(&cas, NULL, 0) < 0) - exit(1); - continue; - } - if (!strcmp(arg, "--no-" CAS_OPT_NAME)) { - if (parse_push_cas_option(&cas, NULL, 1) < 0) - exit(1); - continue; - } - if (starts_with(arg, "--" CAS_OPT_NAME "=")) { - if (parse_push_cas_option(&cas, - strchr(arg, '=') + 1, 0) < 0) - exit(1); - continue; - } - usage(send_pack_usage); - } - if (!dest) { - dest = arg; - continue; - } - refspecs = (const char **) argv; - nr_refspecs = argc - i; - break; + 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_STRING_LIST(0, "push-option", &push_options, + N_("server-specific"), + N_("option to transmit")), + 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() + }; + + 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 (!dest) - usage(send_pack_usage); + 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; + args.push_options = push_options.nr ? &push_options : NULL; if (from_stdin) { struct argv_array all_refspecs = ARGV_ARRAY_INIT; @@ -227,7 +217,7 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix) argv_array_push(&all_refspecs, buf); } else { struct strbuf line = STRBUF_INIT; - while (strbuf_getline(&line, stdin, '\n') != EOF) + while (strbuf_getline(&line, stdin) != EOF) argv_array_push(&all_refspecs, line.buf); strbuf_release(&line); } @@ -240,9 +230,9 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix) * --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); diff --git a/builtin/shortlog.c b/builtin/shortlog.c index c0bab6aaa9..7cff1839fc 100644 --- a/builtin/shortlog.c +++ b/builtin/shortlog.c @@ -14,7 +14,26 @@ static char const * const shortlog_usage[] = { 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; @@ -31,13 +50,9 @@ 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; const char *mailbuf, *namebuf; size_t namelen, maillen; - const char *eol; - struct strbuf subject = STRBUF_INIT; struct strbuf namemailbuf = STRBUF_INIT; struct ident_split ident; @@ -56,98 +71,101 @@ static void insert_one_record(struct shortlog *log, strbuf_addf(&namemailbuf, " <%.*s>", (int)maillen, mailbuf); item = string_list_insert(&log->list, namemailbuf.buf); - 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 (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); + + 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]; - - while (fgets(author, sizeof(author), stdin) != NULL) { - if (!(author[0] == 'A' || author[0] == 'a') || - !starts_with(author + 1, "uthor: ")) + struct strbuf author = STRBUF_INIT; + struct strbuf oneline = STRBUF_INIT; + static const char *author_match[2] = { "Author: ", "author " }; + static const char *committer_match[2] = { "Commit: ", "committer " }; + const char **match; + + match = log->committer ? committer_match : author_match; + while (strbuf_getline_lf(&author, stdin) != EOF) { + const char *v; + if (!skip_prefix(author.buf, match[0], &v) && + !skip_prefix(author.buf, match[1], &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}; + const char *fmt; + + ctx.fmt = CMIT_FMT_USERFORMAT; + ctx.abbrev = log->abbrev; + ctx.print_email_subject = 1; + ctx.date_mode.type = DATE_NORMAL; + ctx.output_encoding = get_log_output_encoding(); + + fmt = log->committer ? "%cn <%ce>" : "%an <%ae>"; + + format_commit_message(commit, fmt, &author, &ctx); + if (!log->summary) { + if (log->user_format) + pretty_print_commit(&ctx, commit, &oneline); else - eol++; - - if (starts_with(buffer, "author ")) - author = buffer + 7; - buffer = eol; - } - if (!author) { - warning(_("Missing author: %s"), - sha1_to_hex(commit->object.sha1)); - return; - } - 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; - ctx.output_encoding = get_log_output_encoding(); - 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) @@ -221,11 +239,13 @@ void shortlog_init(struct shortlog *log) int cmd_shortlog(int argc, const char **argv, const char *prefix) { - static struct shortlog log; - static struct rev_info rev; + struct shortlog log = { STRING_LIST_INIT_NODUP }; + struct rev_info rev; int nongit = !startup_info->have_repository; - static const struct option options[] = { + const struct option options[] = { + OPT_BOOL('c', "committer", &log.committer, + N_("Group by committer rather than author")), 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, @@ -264,6 +284,7 @@ parse_done: log.user_format = rev.commit_format == CMIT_FMT_USERFORMAT; log.abbrev = rev.abbrev; + log.file = rev.diffopt.file; /* assume HEAD if from a tty */ if (!nongit && !rev.pending.nr && isatty(0)) @@ -277,6 +298,8 @@ parse_done: get_from_rev(&rev, &log); shortlog_output(&log); + if (log.file != stdout) + fclose(log.file); return 0; } @@ -293,32 +316,34 @@ void shortlog_output(struct shortlog *log) struct strbuf sb = STRBUF_INIT; if (log->sort_by_number) - qsort(log->list.items, log->list.nr, sizeof(struct string_list_item), - compare_by_number); + QSORT(log->list.items, log->list.nr, + 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); + fprintf(log->file, "%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; + fprintf(log->file, "%s (%d):\n", + item->string, onelines->nr); for (j = onelines->nr - 1; j >= 0; j--) { const char *msg = onelines->items[j].string; if (log->wrap_lines) { strbuf_reset(&sb); add_wrapped_shortlog_msg(&sb, msg, log); - fwrite(sb.buf, sb.len, 1, stdout); + fwrite(sb.buf, sb.len, 1, log->file); } else - printf(" %s\n", msg); + fprintf(log->file, " %s\n", msg); } - putchar('\n'); + putc('\n', log->file); + 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 9b0aba2acc..4a6cc6f490 100644 --- a/builtin/show-branch.c +++ b/builtin/show-branch.c @@ -3,6 +3,7 @@ #include "refs.h" #include "builtin.h" #include "color.h" +#include "argv-array.h" #include "parse-options.h" static const char* show_branch_usage[] = { @@ -16,9 +17,7 @@ static const char* show_branch_usage[] = { 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 @@ -53,17 +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 */ @@ -213,7 +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) @@ -287,8 +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 (starts_with(pretty_str, "[PATCH] ")) - pretty_str += 8; + skip_prefix(pretty_str, "[PATCH] ", &pretty_str); if (!no_name) { if (name && name->head_name) { @@ -303,7 +290,7 @@ 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); @@ -365,14 +352,13 @@ static int compare_ref_name(const void *a_, const void *b_) static void sort_ref_range(int bottom, int top) { - qsort(ref_name + bottom, top - bottom, sizeof(ref_name[0]), - compare_ref_name); + QSORT(ref_name + bottom, top - bottom, 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, 1); int i; if (!commit) @@ -385,8 +371,9 @@ static int append_ref(const char *refname, const unsigned char *sha1, return 0; } if (MAX_REVS <= ref_name_cnt) { - warning("ignoring %s; cannot handle more than %d refs", - refname, MAX_REVS); + warning(Q_("ignoring %s; cannot handle more than %d ref", + "ignoring %s; cannot handle more than %d refs", + MAX_REVS), refname, MAX_REVS); return 0; } ref_name[ref_name_cnt++] = xstrdup(refname); @@ -394,39 +381,42 @@ 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 (!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 (!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 (!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; @@ -440,7 +430,8 @@ 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 @@ -456,38 +447,36 @@ static int append_matching_ref(const char *refname, const unsigned char *sha1, i if (wildmatch(match_ref_pattern, tail, 0, NULL)) return 0; if (starts_with(refname, "refs/heads/")) - return append_head_ref(refname, sha1, flag, cb_data); + return append_head_ref(refname, oid, flag, cb_data); if (starts_with(refname, "refs/tags/")) - return append_tag_ref(refname, sha1, flag, cb_data); - return append_ref(refname, sha1, 0); + 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); } } -static int rev_is_head(char *head, int headlen, char *name, +static int rev_is_head(const char *head, const char *name, unsigned char *head_sha1, unsigned char *sha1) { - if ((!head[0]) || - (head_sha1 && sha1 && hashcmp(head_sha1, sha1))) + if (!head || (head_sha1 && sha1 && hashcmp(head_sha1, sha1))) return 0; - if (starts_with(head, "refs/heads/")) - head += 11; - if (starts_with(name, "refs/heads/")) - name += 11; - else if (starts_with(name, "heads/")) - name += 6; + skip_prefix(head, "refs/heads/", &head); + if (!skip_prefix(name, "refs/heads/", &name)) + skip_prefix(name, "heads/", &name); return !strcmp(head, name); } @@ -498,11 +487,11 @@ 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; } @@ -522,7 +511,7 @@ 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; @@ -530,22 +519,22 @@ 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); if (saved_matches == ref_name_cnt && ref_name_cnt < MAX_REVS) - error("no matching refs with %s", av); - if (saved_matches + 1 < ref_name_cnt) - sort_ref_range(saved_matches, ref_name_cnt); + error(_("no matching refs with %s"), av); + sort_ref_range(saved_matches, ref_name_cnt); return; } die("bad sha1 reference %s", av); @@ -560,16 +549,9 @@ 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; - REALLOC_ARRAY(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; } @@ -633,10 +615,8 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) int all_heads = 0, all_remotes = 0; int all_mask, all_revs; 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]; + char *head; + struct object_id head_oid; int merge_base = 0; int independent = 0; int no_name = 0; @@ -689,9 +669,9 @@ 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, @@ -713,16 +693,16 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) * * Also --all and --remotes do not make sense either. */ - die("--reflog is incompatible with --all, --remotes, " - "--independent or --merge-base"); + die(_("--reflog is incompatible with --all, --remotes, " + "--independent or --merge-base")); } /* 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]; + struct object_id oid; char *ref; int base = 0; unsigned int flags = 0; @@ -732,19 +712,22 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) fake_av[0] = resolve_refdup("HEAD", RESOLVE_REF_READING, - sha1, NULL); + 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"); + die(_("--reflog option needs one branch name")); if (MAX_REVS < reflog) - die("Only %d entries can be shown at one time.", - MAX_REVS); - if (!dwim_ref(*av, strlen(*av), sha1, &ref)) - die("No such ref %s", *av); + die(Q_("only %d entry can be shown at one time.", + "only %d entries can be shown at one time.", + MAX_REVS), MAX_REVS); + if (!dwim_ref(*av, strlen(*av), oid.hash, &ref)) + die(_("no such ref %s"), *av); /* Has the base been specified? */ if (reflog_base) { @@ -752,9 +735,9 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) base = strtoul(reflog_base, &ep, 10); if (*ep) { /* Ah, that is a date spec... */ - unsigned long at; + timestamp_t at; at = approxidate(reflog_base); - read_ref_at(ref, flags, at, -1, sha1, NULL, + read_ref_at(ref, flags, at, -1, oid.hash, NULL, NULL, NULL, &base); } } @@ -763,10 +746,10 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) char *logmsg; char *nth_desc; const char *msg; - unsigned long timestamp; + timestamp_t timestamp; int tz; - if (read_ref_at(ref, flags, 0, base+i, sha1, &logmsg, + if (read_ref_at(ref, flags, 0, base+i, oid.hash, &logmsg, ×tamp, &tz, NULL)) { reflog = i; break; @@ -777,51 +760,44 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) else msg++; reflog_msg[i] = xstrfmt("(%s) %s", - show_date(timestamp, tz, 1), + show_date(timestamp, tz, + DATE_MODE(RELATIVE)), msg); free(logmsg); nth_desc = xstrfmt("%s@{%d}", *av, base+i); - append_ref(nth_desc, sha1, 1); + 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", RESOLVE_REF_READING, - head_sha1, NULL); - if (head_p) { - head_len = strlen(head_p); - memcpy(head, head_p, head_len + 1); - } - else { - head_len = 0; - head[0] = 0; - } + head = resolve_refdup("HEAD", RESOLVE_REF_READING, + head_oid.hash, NULL); - if (with_current_branch && head_p) { + if (with_current_branch && head) { int has_head = 0; for (i = 0; !has_head && i < ref_name_cnt; i++) { /* We are only interested in adding the branch * HEAD points at. */ if (rev_is_head(head, - head_len, ref_name[i], - head_sha1, NULL)) + head_oid.hash, NULL)) has_head++; } if (!has_head) { - int offset = starts_with(head, "refs/heads/") ? 11 : 0; - append_one_rev(head + offset); + const char *name = head; + skip_prefix(name, "refs/heads/", &name); + append_one_rev(name); } } @@ -831,17 +807,19 @@ 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)) - die("'%s' is not a valid ref.", ref_name[num_rev]); - commit = lookup_commit_reference(revkey); + die(Q_("cannot handle more than %d rev.", + "cannot handle more than %d revs.", + MAX_REVS), MAX_REVS); + 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); if (!commit) - die("cannot find commit %s (%s)", - ref_name[num_rev], revkey); + die(_("cannot find commit %s (%s)"), + ref_name[num_rev], oid_to_hex(&revkey)); parse_commit(commit); mark_seen(commit, &seen); @@ -873,10 +851,9 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) for (i = 0; i < num_rev; i++) { int j; 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]); @@ -919,7 +896,7 @@ 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 afb10309d6..013d241abc 100644 --- a/builtin/show-ref.c +++ b/builtin/show-ref.c @@ -8,7 +8,7 @@ static const char * const show_ref_usage[] = { 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] < ref-list"), + N_("git show-ref --exclude-existing[=<pattern>]"), NULL }; @@ -17,20 +17,36 @@ 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; + struct object_id peeled; + + if (!has_sha1_file(oid->hash)) + die("git show-ref: bad ref %s (%s)", refname, + oid_to_hex(oid)); + + if (quiet) + return; + + hex = find_unique_abbrev(oid->hash, abbrev); if (hash_only) printf("%s\n", hex); else printf("%s %s\n", hex, refname); + + if (!deref_tags) + return; + + if (!peel_ref(refname, peeled.hash)) { + hex = find_unique_abbrev(peeled.hash, abbrev); + 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) { - const char *hex; - unsigned char peeled[20]; - if (show_head && !strcmp(refname, "HEAD")) goto match; @@ -53,9 +69,6 @@ static int show_ref(const char *refname, const unsigned char *sha1, int flag, vo continue; if (len == reflen) goto match; - /* "--verify" requires an exact match */ - if (verify) - continue; if (refname[reflen - len - 1] == '/') goto match; } @@ -65,30 +78,13 @@ static int show_ref(const char *refname, const unsigned char *sha1, int flag, vo match: found_match++; - /* This changes the semantics slightly that even under quiet we - * detect and return error if the repository is corrupt and - * ref points at a nonexistent object. - */ - if (!has_sha1_file(sha1)) - die("git show-ref: bad ref %s (%s)", refname, - sha1_to_hex(sha1)); - - if (quiet) - return 0; - - show_one(refname, sha1); - - if (!deref_tags) - return 0; + show_one(refname, oid); - if (!peel_ref(refname, peeled)) { - hex = find_unique_abbrev(peeled, 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); @@ -159,11 +155,6 @@ 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_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)")), @@ -184,18 +175,13 @@ static const struct option show_ref_options[] = { { OPTION_CALLBACK, 0, "exclude-existing", &exclude_existing_arg, 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, N_("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); @@ -208,12 +194,11 @@ 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 (starts_with(*pattern, "refs/") && - !read_ref(*pattern, sha1)) { - if (!quiet) - show_one(*pattern, sha1); + if ((starts_with(*pattern, "refs/") || !strcmp(*pattern, "HEAD")) && + !read_ref(*pattern, oid.hash)) { + 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 1259ed708b..1e62a008cb 100644 --- a/builtin/stripspace.c +++ b/builtin/stripspace.c @@ -1,71 +1,7 @@ #include "builtin.h" #include "cache.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) -{ - while (len) { - unsigned char c = line[len - 1]; - if (!isspace(c)) - break; - len--; - } - - return len; -} - -/* - * 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 comment - * character. - */ -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] == comment_line_char) { - newlen = 0; - continue; - } - newlen = cleanup(sb->buf + i, len); - - /* 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); -} +#include "parse-options.h" +#include "strbuf.h" static void comment_lines(struct strbuf *buf) { @@ -77,41 +13,47 @@ static void comment_lines(struct strbuf *buf) free(msg); } -static const char *usage_msg = "\n" -" git stripspace [-s | --strip-comments] < input\n" -" git stripspace [-c | --comment-lines] < input"; +static const char * const stripspace_usage[] = { + N_("git stripspace [-s | --strip-comments]"), + N_("git stripspace [-c | --comment-lines]"), + NULL +}; + +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 { INVAL = 0, STRIP_SPACE = 1, COMMENT_LINES = 2 } mode = STRIP_SPACE; - - if (argc == 2) { - if (!strcmp(argv[1], "-s") || - !strcmp(argv[1], "--strip-comments")) { - strip_comments = 1; - } else if (!strcmp(argv[1], "-c") || - !strcmp(argv[1], "--comment-lines")) { - mode = COMMENT_LINES; - } else { - mode = INVAL; - } - } else if (argc > 1) { - mode = INVAL; - } - - if (mode == INVAL) - usage(usage_msg); - - if (strip_comments || mode == COMMENT_LINES) + 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 (mode == STRIP_COMMENTS || mode == COMMENT_LINES) { + setup_git_directory_gently(NULL); git_config(git_default_config, NULL); + } if (strbuf_read(&buf, 0, 1024) < 0) die_errno("could not read the input"); - if (mode == STRIP_SPACE) - stripspace(&buf, strip_comments); + if (mode == STRIP_DEFAULT || mode == STRIP_COMMENTS) + strbuf_stripspace(&buf, mode == STRIP_COMMENTS); else comment_lines(&buf); diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c new file mode 100644 index 0000000000..8cc648d85b --- /dev/null +++ b/builtin/submodule--helper.c @@ -0,0 +1,1240 @@ +#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://a.com/c same as previous line, but + * ignore trailing slash in url + * 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-1])) + remoteurl[len-1] = '\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); + if (ends_with(url, "/")) + strbuf_setlen(&sb, sb.len - 1); + 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, + 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 void module_list_active(struct module_list *list) +{ + int i; + struct module_list active_modules = MODULE_LIST_INIT; + + gitmodules_config(); + + for (i = 0; i < list->nr; i++) { + const struct cache_entry *ce = list->entries[i]; + + if (!is_submodule_initialized(ce->name)) + continue; + + ALLOC_GROW(active_modules.entries, + active_modules.nr + 1, + active_modules.alloc); + active_modules.entries[active_modules.nr++] = ce; + } + + free(list->entries); + *list = active_modules; +} + +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, + oid_to_hex(&ce->oid), 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 && get_super_prefix()) + die("BUG: cannot have prefix and superprefix"); + else if (prefix) + displaypath = xstrdup(relative_path(path, prefix, &sb)); + else if (get_super_prefix()) { + strbuf_addf(&sb, "%s%s", get_super_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); + + /* + * NEEDSWORK: In a multi-working-tree world, this needs to be + * set in the per-worktree config. + * + * Set active flag for the submodule being initialized + */ + if (!is_submodule_initialized(path)) { + strbuf_reset(&sb); + strbuf_addf(&sb, "submodule.%s.active", sub->name); + git_config_set_gently(sb.buf, "true"); + } + + /* + * 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)) { + if (!sub->url) + die(_("No url found for submodule path '%s' in .gitmodules"), + displaypath); + + url = xstrdup(sub->url); + + /* 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)) { + warning(_("could not lookup configuration '%s'. Assuming this repository is its own authoritative upstream."), remotesb.buf); + 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__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; + + /* + * If there are no path args and submodule.active is set then, + * by default, only initialize 'active' modules. + */ + if (!argc && git_config_get_value_multi("submodule.active")) + module_list_active(&list); + + 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, struct string_list *reference, + int quiet, int progress) +{ + struct child_process cp = CHILD_PROCESS_INIT; + + argv_array_push(&cp.args, "clone"); + argv_array_push(&cp.args, "--no-checkout"); + if (quiet) + argv_array_push(&cp.args, "--quiet"); + if (progress) + argv_array_push(&cp.args, "--progress"); + if (depth && *depth) + argv_array_pushl(&cp.args, "--depth", depth, NULL); + if (reference->nr) { + struct string_list_item *item; + for_each_string_list_item(item, reference) + argv_array_pushl(&cp.args, "--reference", + item->string, 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); +} + +struct submodule_alternate_setup { + const char *submodule_name; + enum SUBMODULE_ALTERNATE_ERROR_MODE { + SUBMODULE_ALTERNATE_ERROR_DIE, + SUBMODULE_ALTERNATE_ERROR_INFO, + SUBMODULE_ALTERNATE_ERROR_IGNORE + } error_mode; + struct string_list *reference; +}; +#define SUBMODULE_ALTERNATE_SETUP_INIT { NULL, \ + SUBMODULE_ALTERNATE_ERROR_IGNORE, NULL } + +static int add_possible_reference_from_superproject( + struct alternate_object_database *alt, void *sas_cb) +{ + struct submodule_alternate_setup *sas = sas_cb; + + /* + * If the alternate object store is another repository, try the + * standard layout with .git/(modules/<name>)+/objects + */ + if (ends_with(alt->path, "/objects")) { + char *sm_alternate; + struct strbuf sb = STRBUF_INIT; + struct strbuf err = STRBUF_INIT; + strbuf_add(&sb, alt->path, strlen(alt->path) - strlen("objects")); + + /* + * We need to end the new path with '/' to mark it as a dir, + * otherwise a submodule name containing '/' will be broken + * as the last part of a missing submodule reference would + * be taken as a file name. + */ + strbuf_addf(&sb, "modules/%s/", sas->submodule_name); + + sm_alternate = compute_alternate_path(sb.buf, &err); + if (sm_alternate) { + string_list_append(sas->reference, xstrdup(sb.buf)); + free(sm_alternate); + } else { + switch (sas->error_mode) { + case SUBMODULE_ALTERNATE_ERROR_DIE: + die(_("submodule '%s' cannot add alternate: %s"), + sas->submodule_name, err.buf); + case SUBMODULE_ALTERNATE_ERROR_INFO: + fprintf(stderr, _("submodule '%s' cannot add alternate: %s"), + sas->submodule_name, err.buf); + case SUBMODULE_ALTERNATE_ERROR_IGNORE: + ; /* nothing */ + } + } + strbuf_release(&sb); + } + + return 0; +} + +static void prepare_possible_alternates(const char *sm_name, + struct string_list *reference) +{ + char *sm_alternate = NULL, *error_strategy = NULL; + struct submodule_alternate_setup sas = SUBMODULE_ALTERNATE_SETUP_INIT; + + git_config_get_string("submodule.alternateLocation", &sm_alternate); + if (!sm_alternate) + return; + + git_config_get_string("submodule.alternateErrorStrategy", &error_strategy); + + if (!error_strategy) + error_strategy = xstrdup("die"); + + sas.submodule_name = sm_name; + sas.reference = reference; + if (!strcmp(error_strategy, "die")) + sas.error_mode = SUBMODULE_ALTERNATE_ERROR_DIE; + else if (!strcmp(error_strategy, "info")) + sas.error_mode = SUBMODULE_ALTERNATE_ERROR_INFO; + else if (!strcmp(error_strategy, "ignore")) + sas.error_mode = SUBMODULE_ALTERNATE_ERROR_IGNORE; + else + die(_("Value '%s' for submodule.alternateErrorStrategy is not recognized"), error_strategy); + + if (!strcmp(sm_alternate, "superproject")) + foreach_alt_odb(add_possible_reference_from_superproject, &sas); + else if (!strcmp(sm_alternate, "no")) + ; /* do nothing */ + else + die(_("Value '%s' for submodule.alternateLocation is not recognized"), sm_alternate); + + free(sm_alternate); + free(error_strategy); +} + +static int module_clone(int argc, const char **argv, const char *prefix) +{ + const char *name = NULL, *url = NULL, *depth = NULL; + int quiet = 0; + int progress = 0; + char *p, *path = NULL, *sm_gitdir; + struct strbuf sb = STRBUF_INIT; + struct string_list reference = STRING_LIST_INIT_NODUP; + char *sm_alternate = NULL, *error_strategy = NULL; + + 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_LIST(0, "reference", &reference, + N_("repo"), + 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_BOOL(0, "progress", &progress, + N_("force cloning progress")), + 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 = absolute_pathdup(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); + + prepare_possible_alternates(name, &reference); + + if (clone_submodule(path, sm_gitdir, url, depth, &reference, + quiet, progress)) + 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); + } + + /* Connect module worktree and git dir */ + connect_work_tree_and_git_dir(path, sm_gitdir); + + p = git_pathdup_submodule(path, "config"); + if (!p) + die(_("could not get submodule directory for '%s'"), path); + + /* setup alternateLocation and alternateErrorStrategy in the cloned submodule if needed */ + git_config_get_string("submodule.alternateLocation", &sm_alternate); + if (sm_alternate) + git_config_set_in_file(p, "submodule.alternateLocation", + sm_alternate); + git_config_get_string("submodule.alternateErrorStrategy", &error_strategy); + if (error_strategy) + git_config_set_in_file(p, "submodule.alternateErrorStrategy", + error_strategy); + + free(sm_alternate); + free(error_strategy); + + strbuf_release(&sb); + 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 progress; + int quiet; + int recommend_shallow; + struct string_list references; + 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; + + /* failed clones to be retried again */ + const struct cache_entry **failed_clones; + int failed_clones_nr, failed_clones_alloc; +}; +#define SUBMODULE_UPDATE_CLONE_INIT {0, MODULE_LIST_INIT, 0, \ + SUBMODULE_UPDATE_STRATEGY_INIT, 0, 0, -1, STRING_LIST_INIT_DUP, \ + NULL, NULL, NULL, \ + STRING_LIST_INIT_DUP, 0, NULL, 0, 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; + int needs_cloning = 0; + + if (ce_stage(ce)) { + if (suc->recursive_prefix) + strbuf_addf(&sb, "%s/%s", suc->recursive_prefix, ce->name); + else + strbuf_addstr(&sb, 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; + } + + /* Check if the submodule has been initialized. */ + if (!is_submodule_initialized(ce->name)) { + 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, + oid_to_hex(&ce->oid), 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->progress) + argv_array_push(&child->args, "--progress"); + if (suc->quiet) + argv_array_push(&child->args, "--quiet"); + if (suc->prefix) + argv_array_pushl(&child->args, "--prefix", suc->prefix, NULL); + if (suc->recommend_shallow && sub->recommend_shallow == 1) + argv_array_push(&child->args, "--depth=1"); + argv_array_pushl(&child->args, "--path", sub->path, NULL); + argv_array_pushl(&child->args, "--name", sub->name, NULL); + argv_array_pushl(&child->args, "--url", sub->url, NULL); + if (suc->references.nr) { + struct string_list_item *item; + for_each_string_list_item(item, &suc->references) + argv_array_pushl(&child->args, "--reference", item->string, NULL); + } + if (suc->depth) + argv_array_push(&child->args, suc->depth); + +cleanup: + 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 **idx_task_cb) +{ + struct submodule_update_clone *suc = suc_cb; + const struct cache_entry *ce; + int index; + + for (; suc->current < suc->list.nr; suc->current++) { + ce = suc->list.entries[suc->current]; + if (prepare_to_clone_next_submodule(ce, child, suc, err)) { + int *p = xmalloc(sizeof(*p)); + *p = suc->current; + *idx_task_cb = p; + suc->current++; + return 1; + } + } + + /* + * The loop above tried cloning each submodule once, now try the + * stragglers again, which we can imagine as an extension of the + * entry list. + */ + index = suc->current - suc->list.nr; + if (index < suc->failed_clones_nr) { + int *p; + ce = suc->failed_clones[index]; + if (!prepare_to_clone_next_submodule(ce, child, suc, err)) { + suc->current ++; + strbuf_addstr(err, "BUG: submodule considered for " + "cloning, doesn't need cloning " + "any more?\n"); + return 0; + } + p = xmalloc(sizeof(*p)); + *p = suc->current; + *idx_task_cb = p; + suc->current ++; + return 1; + } + + return 0; +} + +static int update_clone_start_failure(struct strbuf *err, + void *suc_cb, + void *idx_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 *idx_task_cb) +{ + const struct cache_entry *ce; + struct submodule_update_clone *suc = suc_cb; + + int *idxP = *(int**)idx_task_cb; + int idx = *idxP; + free(idxP); + + if (!result) + return 0; + + if (idx < suc->list.nr) { + ce = suc->list.entries[idx]; + strbuf_addf(err, _("Failed to clone '%s'. Retry scheduled"), + ce->name); + strbuf_addch(err, '\n'); + ALLOC_GROW(suc->failed_clones, + suc->failed_clones_nr + 1, + suc->failed_clones_alloc); + suc->failed_clones[suc->failed_clones_nr++] = ce; + return 0; + } else { + idx -= suc->list.nr; + ce = suc->failed_clones[idx]; + strbuf_addf(err, _("Failed to clone '%s' a second time, aborting"), + ce->name); + strbuf_addch(err, '\n'); + suc->quickstop = 1; + return 1; + } + + return 0; +} + +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_LIST(0, "reference", &suc.references, 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_BOOL(0, "recommend-shallow", &suc.recommend_shallow, + N_("whether the initial clone should follow the shallow recommendation")), + OPT__QUIET(&suc.quiet, N_("don't print cloning progress")), + OPT_BOOL(0, "progress", &suc.progress, + N_("force 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; +} + +static const char *remote_submodule_branch(const char *path) +{ + const struct submodule *sub; + gitmodules_config(); + git_config(submodule_config, NULL); + + sub = submodule_from_path(null_sha1, path); + if (!sub) + return NULL; + + if (!sub->branch) + return "master"; + + if (!strcmp(sub->branch, ".")) { + unsigned char sha1[20]; + const char *refname = resolve_ref_unsafe("HEAD", 0, sha1, NULL); + + if (!refname) + die(_("No such ref: %s"), "HEAD"); + + /* detached HEAD */ + if (!strcmp(refname, "HEAD")) + die(_("Submodule (%s) branch configured to inherit " + "branch from superproject, but the superproject " + "is not on any branch"), sub->name); + + if (!skip_prefix(refname, "refs/heads/", &refname)) + die(_("Expecting a full ref name, got %s"), refname); + return refname; + } + + return sub->branch; +} + +static int resolve_remote_submodule_branch(int argc, const char **argv, + const char *prefix) +{ + const char *ret; + struct strbuf sb = STRBUF_INIT; + if (argc != 2) + die("submodule--helper remote-branch takes exactly one arguments, got %d", argc); + + ret = remote_submodule_branch(argv[1]); + if (!ret) + die("submodule %s doesn't exist", argv[1]); + + printf("%s", ret); + strbuf_release(&sb); + return 0; +} + +static int push_check(int argc, const char **argv, const char *prefix) +{ + struct remote *remote; + + if (argc < 2) + die("submodule--helper push-check requires at least 1 argument"); + + /* + * The remote must be configured. + * This is to avoid pushing to the exact same URL as the parent. + */ + remote = pushremote_get(argv[1]); + if (!remote || remote->origin == REMOTE_UNCONFIGURED) + die("remote '%s' not configured", argv[1]); + + /* Check the refspec */ + if (argc > 2) { + int i, refspec_nr = argc - 2; + struct ref *local_refs = get_local_heads(); + struct refspec *refspec = parse_push_refspec(refspec_nr, + argv + 2); + + for (i = 0; i < refspec_nr; i++) { + struct refspec *rs = refspec + i; + + if (rs->pattern || rs->matching) + continue; + + /* + * LHS must match a single ref + * NEEDSWORK: add logic to special case 'HEAD' once + * working with submodules in a detached head state + * ceases to be the norm. + */ + if (count_refspec_match(rs->src, local_refs, NULL) != 1) + die("src refspec '%s' must name a ref", + rs->src); + } + free_refspec(refspec_nr, refspec); + } + + return 0; +} + +static int absorb_git_dirs(int argc, const char **argv, const char *prefix) +{ + int i; + struct pathspec pathspec; + struct module_list list = MODULE_LIST_INIT; + unsigned flags = ABSORB_GITDIR_RECURSE_SUBMODULES; + + struct option embed_gitdir_options[] = { + OPT_STRING(0, "prefix", &prefix, + N_("path"), + N_("path into the working tree")), + OPT_BIT(0, "--recursive", &flags, N_("recurse into submodules"), + ABSORB_GITDIR_RECURSE_SUBMODULES), + OPT_END() + }; + + const char *const git_submodule_helper_usage[] = { + N_("git submodule--helper embed-git-dir [<path>...]"), + NULL + }; + + argc = parse_options(argc, argv, prefix, embed_gitdir_options, + git_submodule_helper_usage, 0); + + gitmodules_config(); + git_config(submodule_config, NULL); + + if (module_list_compute(argc, argv, prefix, &pathspec, &list) < 0) + return 1; + + for (i = 0; i < list.nr; i++) + absorb_git_dir_into_superproject(prefix, + list.entries[i]->name, flags); + + return 0; +} + +static int is_active(int argc, const char **argv, const char *prefix) +{ + if (argc != 2) + die("submodule--helper is-active takes exactly 1 argument"); + + gitmodules_config(); + + return !is_submodule_initialized(argv[1]); +} + +#define SUPPORT_SUPER_PREFIX (1<<0) + +struct cmd_struct { + const char *cmd; + int (*fn)(int, const char **, const char *); + unsigned option; +}; + +static struct cmd_struct commands[] = { + {"list", module_list, 0}, + {"name", module_name, 0}, + {"clone", module_clone, 0}, + {"update-clone", update_clone, 0}, + {"relative-path", resolve_relative_path, 0}, + {"resolve-relative-url", resolve_relative_url, 0}, + {"resolve-relative-url-test", resolve_relative_url_test, 0}, + {"init", module_init, SUPPORT_SUPER_PREFIX}, + {"remote-branch", resolve_remote_submodule_branch, 0}, + {"push-check", push_check, 0}, + {"absorb-git-dirs", absorb_git_dirs, SUPPORT_SUPER_PREFIX}, + {"is-active", is_active, 0}, +}; + +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)) { + if (get_super_prefix() && + !(commands[i].option & SUPPORT_SUPER_PREFIX)) + die(_("%s doesn't support --super-prefix"), + 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 ce0fde705c..70addef158 100644 --- a/builtin/symbolic-ref.c +++ b/builtin/symbolic-ref.c @@ -56,7 +56,9 @@ int cmd_symbolic_ref(int argc, const char **argv, const char *prefix) 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); + if (!strcmp(argv[0], "HEAD")) + die("deleting '%s' is not allowed", argv[0]); + return delete_ref(NULL, argv[0], NULL, REF_NODEREF); } switch (argc) { @@ -67,7 +69,7 @@ int cmd_symbolic_ref(int argc, const char **argv, const char *prefix) if (!strcmp(argv[0], "HEAD") && !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); diff --git a/builtin/tag.c b/builtin/tag.c index 6f07ac6b93..1f74a56db7 100644 --- a/builtin/tag.c +++ b/builtin/tag.c @@ -17,320 +17,105 @@ #include "gpg-interface.h" #include "sha1-array.h" #include "column.h" +#include "ref-filter.h" static const char * const git_tag_usage[] = { 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[<pattern>...]"), - N_("git tag -v <tagname>..."), + N_("git tag -l [-n[<num>]] [--contains <commit>] [--no-contains <commit>] [--points-at <object>]" + "\n\t\t[--format=<format>] [--[no-]merged [<commit>]] [<pattern>...]"), + N_("git tag -v [--format=<format>] <tagname>..."), NULL }; -#define STRCMP_SORT 0 /* must be zero */ -#define VERCMP_SORT 1 -#define SORT_MASK 0x7fff -#define REVERSE_SORT 0x8000 - -static int tag_sort; - -struct tag_filter { - const char **patterns; - int lines; - int sort; - struct string_list tags; - struct commit_list *with_commit; -}; - -static struct sha1_array points_at; static unsigned int colopts; +static int force_sign_annotate; -static int match_pattern(const char **patterns, const char *ref) -{ - /* no pattern means match everything */ - if (!*patterns) - return 1; - for (; *patterns; patterns++) - if (!wildmatch(*patterns, ref, 0, NULL)) - return 1; - return 0; -} - -static const unsigned char *match_points_at(const char *refname, - const unsigned char *sha1) -{ - const unsigned char *tagged_sha1 = NULL; - struct object *obj; - - if (sha1_array_lookup(&points_at, sha1) >= 0) - return sha1; - obj = parse_object(sha1); - if (!obj) - die(_("malformed object at '%s'"), refname); - if (obj->type == OBJ_TAG) - tagged_sha1 = ((struct tag *)obj)->tagged->sha1; - if (tagged_sha1 && sha1_array_lookup(&points_at, tagged_sha1) >= 0) - return tagged_sha1; - return NULL; -} - -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; -} - -enum contains_result { - CONTAINS_UNKNOWN = -1, - CONTAINS_NO = 0, - CONTAINS_YES = 1 -}; - -/* - * Test whether the candidate or one of its parents is contained in the list. - * Do not recurse to find out, though, but return -1 if inconclusive. - */ -static enum contains_result contains_test(struct commit *candidate, - const struct commit_list *want) -{ - /* 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)) { - candidate->object.flags |= TMP_MARK; - return 1; - } - - if (parse_commit(candidate) < 0) - return 0; - - return -1; -} - -/* - * Mimicking the real stack, this stack lives on the heap, avoiding stack - * overflows. - * - * At each recursion step, the stack items points to the commits whose - * ancestors are to be inspected. - */ -struct stack { - int nr, alloc; - struct stack_entry { - struct commit *commit; - struct commit_list *parents; - } *stack; -}; - -static void push_to_stack(struct commit *candidate, struct stack *stack) -{ - int index = stack->nr++; - ALLOC_GROW(stack->stack, stack->nr, stack->alloc); - stack->stack[index].commit = candidate; - stack->stack[index].parents = candidate->parents; -} - -static enum contains_result contains(struct commit *candidate, - const struct commit_list *want) -{ - struct stack stack = { 0, 0, NULL }; - int result = contains_test(candidate, want); - - if (result != CONTAINS_UNKNOWN) - return result; - - push_to_stack(candidate, &stack); - while (stack.nr) { - struct stack_entry *entry = &stack.stack[stack.nr - 1]; - struct commit *commit = entry->commit; - struct commit_list *parents = entry->parents; - - if (!parents) { - commit->object.flags |= UNINTERESTING; - stack.nr--; - } - /* - * If we just popped the stack, parents->item has been marked, - * therefore contains_test will return a meaningful 0 or 1. - */ - else switch (contains_test(parents->item, want)) { - case CONTAINS_YES: - commit->object.flags |= TMP_MARK; - stack.nr--; - break; - case CONTAINS_NO: - entry->parents = parents->next; - break; - case CONTAINS_UNKNOWN: - push_to_stack(parents->item, &stack); - break; - } - } - free(stack.stack); - return contains_test(candidate, want); -} - -static void show_tag_lines(const unsigned char *sha1, int lines) +static int list_tags(struct ref_filter *filter, struct ref_sorting *sorting, const char *format) { + struct ref_array array; + char *to_free = NULL; int i; - unsigned long size; - enum object_type type; - char *buf, *sp, *eol; - size_t len; - buf = read_sha1_file(sha1, &type, &size); - if (!buf) - die_errno("unable to read object %s", sha1_to_hex(sha1)); - if (type != OBJ_COMMIT && type != OBJ_TAG) - goto free_return; - if (!size) - die("an empty %s object %s?", - typename(type), sha1_to_hex(sha1)); + memset(&array, 0, sizeof(array)); - /* skip header */ - sp = strstr(buf, "\n\n"); - if (!sp) - goto free_return; - - /* only take up to "lines" lines, and strip the signature from a tag */ - if (type == OBJ_TAG) - size = parse_signature(buf, size); - for (i = 0, sp += 2; i < 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; - } -free_return: - free(buf); -} + if (filter->lines == -1) + filter->lines = 0; -static int show_reference(const char *refname, const unsigned char *sha1, - int flag, void *cb_data) -{ - struct tag_filter *filter = cb_data; - - if (match_pattern(filter->patterns, refname)) { - 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 (points_at.nr && !match_points_at(refname, sha1)) - return 0; - - if (!filter->lines) { - if (filter->sort) - string_list_append(&filter->tags, refname); - else - printf("%s\n", refname); - return 0; - } - printf("%-15s ", refname); - show_tag_lines(sha1, filter->lines); - putchar('\n'); + if (!format) { + if (filter->lines) { + to_free = xstrfmt("%s %%(contents:lines=%d)", + "%(align:15)%(refname:lstrip=2)%(end)", + filter->lines); + format = to_free; + } else + format = "%(refname:lstrip=2)"; } - return 0; -} + verify_ref_format(format); + filter->with_commit_tag_algo = 1; + filter_refs(&array, filter, FILTER_REFS_TAGS); + ref_array_sort(sorting, &array); -static int sort_by_version(const void *a_, const void *b_) -{ - const struct string_list_item *a = a_; - const struct string_list_item *b = b_; - return versioncmp(a->string, b->string); -} + for (i = 0; i < array.nr; i++) + show_ref_array_item(array.items[i], format, 0); + ref_array_clear(&array); + free(to_free); -static int list_tags(const char **patterns, int lines, - struct commit_list *with_commit, int sort) -{ - struct tag_filter filter; - - filter.patterns = patterns; - filter.lines = lines; - filter.sort = sort; - filter.with_commit = with_commit; - memset(&filter.tags, 0, sizeof(filter.tags)); - filter.tags.strdup_strings = 1; - - for_each_tag_ref(show_reference, (void *) &filter); - if (sort) { - int i; - if ((sort & SORT_MASK) == VERCMP_SORT) - qsort(filter.tags.items, filter.tags.nr, - sizeof(struct string_list_item), sort_by_version); - if (sort & REVERSE_SORT) - for (i = filter.tags.nr - 1; i >= 0; i--) - printf("%s\n", filter.tags.items[i].string); - else - for (i = 0; i < filter.tags.nr; i++) - printf("%s\n", filter.tags.items[i].string); - string_list_clear(&filter.tags, 0); - } return 0; } typedef int (*each_tag_name_fn)(const char *name, const char *ref, - const unsigned char *sha1); + const struct object_id *oid, const void *cb_data); -static int for_each_tag_name(const char **argv, each_tag_name_fn fn) +static int for_each_tag_name(const char **argv, each_tag_name_fn fn, + const void *cb_data) { const char **p; - char ref[PATH_MAX]; + struct strbuf ref = STRBUF_INIT; int had_error = 0; - unsigned char sha1[20]; + struct object_id oid; for (p = argv; *p; p++) { - if (snprintf(ref, sizeof(ref), "refs/tags/%s", *p) - >= sizeof(ref)) { - error(_("tag name too long: %.*s..."), 50, *p); - had_error = 1; - continue; - } - if (read_ref(ref, sha1)) { + strbuf_reset(&ref); + strbuf_addf(&ref, "refs/tags/%s", *p); + if (read_ref(ref.buf, oid.hash)) { error(_("tag '%s' not found."), *p); had_error = 1; continue; } - if (fn(*p, ref, sha1)) + if (fn(*p, ref.buf, &oid, cb_data)) had_error = 1; } + strbuf_release(&ref); return had_error; } static int delete_tag(const char *name, const char *ref, - const unsigned char *sha1) + const struct object_id *oid, const void *cb_data) { - if (delete_ref(ref, sha1, 0)) + if (delete_ref(NULL, ref, oid->hash, 0)) return 1; - printf(_("Deleted tag '%s' (was %s)\n"), name, find_unique_abbrev(sha1, DEFAULT_ABBREV)); + printf(_("Deleted tag '%s' (was %s)\n"), name, find_unique_abbrev(oid->hash, DEFAULT_ABBREV)); return 0; } static int verify_tag(const char *name, const char *ref, - const unsigned char *sha1) + const struct object_id *oid, const void *cb_data) { - const char *argv_verify_tag[] = {"verify-tag", - "-v", "SHA1_HEX", NULL}; - argv_verify_tag[2] = sha1_to_hex(sha1); + int flags; + const char *fmt_pretty = cb_data; + flags = GPG_VERIFY_VERBOSE; + + if (fmt_pretty) + flags = GPG_VERIFY_OMIT_STATUS; + + if (gpg_verify_tag(oid->hash, name, flags)) + return -1; + + if (fmt_pretty) + pretty_print_ref(name, oid->hash, fmt_pretty); - if (run_command_v_opt(argv_verify_tag, RUN_GIT_CMD)) - return error(_("could not verify the tag '%s'"), name); return 0; } @@ -348,35 +133,26 @@ static const char tag_template_nocleanup[] = "Lines starting with '%c' will be kept; you may remove them" " yourself if you want to.\n"); -/* - * Parse a sort string, and return 0 if parsed successfully. Will return - * non-zero when the sort string does not parse into a known type. If var is - * given, the error message becomes a warning and includes information about - * the configuration value. - */ -static int parse_sort_string(const char *var, const char *arg, int *sort) +/* Parse arg given and add it the ref_sorting array */ +static int parse_sorting_string(const char *arg, struct ref_sorting **sorting_tail) { - int type = 0, flags = 0; + struct ref_sorting *s; + int len; - if (skip_prefix(arg, "-", &arg)) - flags |= REVERSE_SORT; - - if (skip_prefix(arg, "version:", &arg) || skip_prefix(arg, "v:", &arg)) - type = VERCMP_SORT; - else - type = STRCMP_SORT; + s = xcalloc(1, sizeof(*s)); + s->next = *sorting_tail; + *sorting_tail = s; - if (strcmp(arg, "refname")) { - if (!var) - return error(_("unsupported sort specification '%s'"), arg); - else { - warning(_("unsupported sort specification '%s' in variable '%s'"), - var, arg); - return -1; - } + if (*arg == '-') { + s->reverse = 1; + arg++; } + if (skip_prefix(arg, "version:", &arg) || + skip_prefix(arg, "v:", &arg)) + s->version = 1; - *sort = (type | flags); + len = strlen(arg); + s->atom = parse_ref_filter_atom(arg, arg+len); return 0; } @@ -384,29 +160,35 @@ static int parse_sort_string(const char *var, const char *arg, int *sort) static int git_tag_config(const char *var, const char *value, void *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_sort_string(var, value, &tag_sort); + 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); } -static void write_tag_body(int fd, const unsigned char *sha1) +static void write_tag_body(int fd, const struct object_id *oid) { unsigned long size; enum object_type type; char *buf, *sp; - buf = read_sha1_file(sha1, &type, &size); + buf = read_sha1_file(oid->hash, &type, &size); if (!buf) return; /* skip header */ @@ -422,11 +204,11 @@ static void write_tag_body(int fd, const unsigned char *sha1) free(buf); } -static int build_tag_object(struct strbuf *buf, int sign, unsigned char *result) +static int build_tag_object(struct strbuf *buf, int sign, struct object_id *result) { if (sign && do_sign(buf) < 0) return error(_("unable to sign the tag")); - if (write_sha1_file(buf->buf, buf->len, tag_type, result) < 0) + if (write_sha1_file(buf->buf, buf->len, tag_type, result->hash) < 0) return error(_("unable to write tag file")); return 0; } @@ -441,31 +223,27 @@ struct create_tag_options { } cleanup_mode; }; -static void create_tag(const unsigned char *object, const char *tag, +static void create_tag(const struct object_id *object, const char *tag, struct strbuf *buf, struct create_tag_options *opt, - unsigned char *prev, unsigned char *result) + struct object_id *prev, struct object_id *result) { enum object_type type; - char header_buf[1024]; - int header_len; + struct strbuf header = STRBUF_INIT; char *path = NULL; - type = sha1_object_info(object, NULL); + type = sha1_object_info(object->hash, NULL); if (type <= OBJ_NONE) die(_("bad object type.")); - header_len = snprintf(header_buf, sizeof(header_buf), - "object %s\n" - "type %s\n" - "tag %s\n" - "tagger %s\n\n", - sha1_to_hex(object), - typename(type), - tag, - git_committer_info(IDENT_STRICT)); - - if (header_len > sizeof(header_buf) - 1) - die(_("tag header too big.")); + strbuf_addf(&header, + "object %s\n" + "type %s\n" + "tag %s\n" + "tagger %s\n\n", + oid_to_hex(object), + typename(type), + tag, + git_committer_info(IDENT_STRICT)); if (!opt->message_given) { int fd; @@ -476,7 +254,7 @@ 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_oid(prev)) { write_tag_body(fd, prev); } else { struct strbuf buf = STRBUF_INIT; @@ -498,12 +276,13 @@ 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?")); - strbuf_insert(buf, 0, header_buf, header_len); + strbuf_insert(buf, 0, header.buf, header.len); + strbuf_release(&header); if (build_tag_object(buf, opt->sign, result) < 0) { if (path) @@ -517,6 +296,54 @@ static void create_tag(const unsigned char *object, const char *tag, } } +static void create_reflog_msg(const struct object_id *oid, struct strbuf *sb) +{ + enum object_type type; + struct commit *c; + char *buf; + unsigned long size; + int subject_len = 0; + const char *subject_start; + + char *rla = getenv("GIT_REFLOG_ACTION"); + if (rla) { + strbuf_addstr(sb, rla); + } else { + strbuf_addstr(sb, "tag: tagging "); + strbuf_add_unique_abbrev(sb, oid->hash, DEFAULT_ABBREV); + } + + strbuf_addstr(sb, " ("); + type = sha1_object_info(oid->hash, NULL); + switch (type) { + default: + strbuf_addstr(sb, "object of unknown type"); + break; + case OBJ_COMMIT: + if ((buf = read_sha1_file(oid->hash, &type, &size)) != NULL) { + subject_len = find_commit_subject(buf, &subject_start); + strbuf_insert(sb, sb->len, subject_start, subject_len); + } else { + strbuf_addstr(sb, "commit object"); + } + free(buf); + + if ((c = lookup_commit_reference(oid)) != NULL) + strbuf_addf(sb, ", %s", show_date(c->date, 0, DATE_MODE(SHORT))); + break; + case OBJ_TREE: + strbuf_addstr(sb, "tree object"); + break; + case OBJ_BLOB: + strbuf_addstr(sb, "blob object"); + break; + case OBJ_TAG: + strbuf_addstr(sb, "other tag object"); + break; + } + strbuf_addch(sb, ')'); +} + struct msg_arg { int given; struct strbuf buf; @@ -546,48 +373,29 @@ static int strbuf_check_tag_ref(struct strbuf *sb, const char *name) return check_refname_format(sb->buf, 0); } -static int parse_opt_points_at(const struct option *opt __attribute__((unused)), - const char *arg, int unset) -{ - unsigned char sha1[20]; - - if (unset) { - sha1_array_clear(&points_at); - return 0; - } - if (!arg) - return error(_("switch 'points-at' requires an object")); - if (get_sha1(arg, sha1)) - return error(_("malformed object name '%s'"), arg); - sha1_array_append(&points_at, sha1); - return 0; -} - -static int parse_opt_sort(const struct option *opt, const char *arg, int unset) -{ - int *sort = opt->value; - - return parse_sort_string(NULL, arg, sort); -} - int cmd_tag(int argc, const char **argv, const char *prefix) { struct strbuf buf = STRBUF_INIT; struct strbuf ref = STRBUF_INIT; - unsigned char object[20], prev[20]; + struct strbuf reflog_msg = STRBUF_INIT; + struct object_id object, prev; const char *object_ref, *tag; struct create_tag_options opt; char *cleanup_arg = NULL; - int annotate = 0, force = 0, lines = -1; - int cmdmode = 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; + int icase = 0; struct option options[] = { OPT_CMDMODE('l', "list", &cmdmode, N_("list tag names"), 'l'), - { OPTION_INTEGER, 'n', NULL, &lines, N_("n"), + { OPTION_INTEGER, 'n', NULL, &filter.lines, N_("n"), N_("print <n> lines of each tag message"), PARSE_OPT_OPTARG, NULL, 1 }, OPT_CMDMODE('d', "delete", &cmdmode, N_("delete tags"), 'd'), @@ -605,35 +413,35 @@ int cmd_tag(int argc, const char **argv, const char *prefix) 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_NO_CONTAINS(&filter.no_commit, N_("print only tags that don't contain the commit")), + OPT_WITH(&filter.with_commit, N_("print only tags that contain the commit")), + OPT_WITHOUT(&filter.no_commit, N_("print only tags that don't 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, "sort", &tag_sort, N_("type"), N_("sort tags"), - PARSE_OPT_NONEG, parse_opt_sort - }, - { - OPTION_CALLBACK, 0, "contains", &with_commit, N_("commit"), - N_("print only tags that contain the commit"), - PARSE_OPT_LASTARG_DEFAULT, - parse_opt_with_commit, (intptr_t)"HEAD", - }, - { - OPTION_CALLBACK, 0, "with", &with_commit, N_("commit"), - N_("print only tags that contain the commit"), - PARSE_OPT_HIDDEN | PARSE_OPT_LASTARG_DEFAULT, - parse_opt_with_commit, (intptr_t)"HEAD", - }, - { - OPTION_CALLBACK, 0, "points-at", NULL, N_("object"), - N_("print only tags of the object"), 0, parse_opt_points_at + OPTION_CALLBACK, 0, "points-at", &filter.points_at, N_("object"), + N_("print only tags of the object"), PARSE_OPT_LASTARG_DEFAULT, + parse_opt_object_name, (intptr_t) "HEAD" }, + OPT_STRING( 0 , "format", &format, N_("format"), N_("format to use for the output")), + OPT_BOOL('i', "ignore-case", &icase, N_("sorting and filtering are case insensitive")), OPT_END() }; - git_config(git_tag_config, NULL); + setup_ref_filter_porcelain_msg(); + + 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); @@ -641,20 +449,30 @@ 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 && !cmdmode) - cmdmode = 'l'; + create_tag_object = (opt.sign || annotate || msg.given || msgfile); + + if (!cmdmode) { + if (argc == 0) + cmdmode = 'l'; + else if (filter.with_commit || filter.no_commit || + filter.points_at.nr || filter.merge_commit || + filter.lines != -1) + cmdmode = 'l'; + } - if ((annotate || msg.given || msgfile || force) && (cmdmode != 0)) + if ((create_tag_object || force) && (cmdmode != 0)) usage_with_options(git_tag_usage, options); finalize_colopts(&colopts, -1); - if (cmdmode == 'l' && lines != -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(); + sorting->ignore_case = icase; + filter.ignore_case = icase; if (cmdmode == 'l') { int ret; if (column_active(colopts)) { @@ -663,28 +481,33 @@ int cmd_tag(int argc, const char **argv, const char *prefix) copts.padding = 2; run_column_filter(colopts, &copts); } - if (lines != -1 && tag_sort) - die(_("--sort and -n are incompatible")); - ret = list_tags(argv, lines == -1 ? 0 : lines, with_commit, tag_sort); + filter.name_patterns = argv; + ret = list_tags(&filter, sorting, format); if (column_active(colopts)) stop_column_filter(); return ret; } - if (lines != -1) - die(_("-n option is only allowed with -l.")); - if (with_commit) - die(_("--contains option is only allowed with -l.")); - if (points_at.nr) - die(_("--points-at option is only allowed with -l.")); + if (filter.lines != -1) + die(_("-n option is only allowed in list mode")); + if (filter.with_commit) + die(_("--contains option is only allowed in list mode")); + if (filter.no_commit) + die(_("--no-contains option is only allowed in list mode")); + if (filter.points_at.nr) + die(_("--points-at option is only allowed in list mode")); + if (filter.merge_commit) + die(_("--merged and --no-merged options are only allowed in list mode")); if (cmdmode == 'd') - return for_each_tag_name(argv, delete_tag); - if (cmdmode == 'v') - return for_each_tag_name(argv, verify_tag); + return for_each_tag_name(argv, delete_tag, NULL); + if (cmdmode == 'v') { + if (format) + verify_ref_format(format); + return for_each_tag_name(argv, verify_tag, format); + } 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 { @@ -705,14 +528,14 @@ int cmd_tag(int argc, const char **argv, const char *prefix) if (argc > 2) die(_("too many params")); - if (get_sha1(object_ref, object)) + if (get_oid(object_ref, &object)) die(_("Failed to resolve '%s' as a valid ref."), object_ref); if (strbuf_check_tag_ref(&ref, tag)) die(_("'%s' is not a valid tag name."), tag); - if (read_ref(ref.buf, prev)) - hashclr(prev); + if (read_ref(ref.buf, prev.hash)) + oidclr(&prev); else if (!force) die(_("tag '%s' already exists"), tag); @@ -727,21 +550,28 @@ int cmd_tag(int argc, const char **argv, const char *prefix) else die(_("Invalid cleanup mode %s"), cleanup_arg); - if (annotate) - create_tag(object, tag, &buf, &opt, prev, object); + create_reflog_msg(&object, &reflog_msg); + + if (create_tag_object) { + if (force_sign_annotate && !annotate) + opt.sign = 1; + create_tag(&object, tag, &buf, &opt, &prev, &object); + } transaction = ref_transaction_begin(&err); if (!transaction || - ref_transaction_update(transaction, ref.buf, object, prev, - 0, NULL, &err) || + ref_transaction_update(transaction, ref.buf, object.hash, prev.hash, + create_reflog ? REF_FORCE_CREATE_REFLOG : 0, + reflog_msg.buf, &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)); + if (force && !is_null_oid(&prev) && oidcmp(&prev, &object)) + printf(_("Updated tag '%s' (was %s)\n"), tag, find_unique_abbrev(prev.hash, DEFAULT_ABBREV)); strbuf_release(&err); strbuf_release(&buf); strbuf_release(&ref); + strbuf_release(&reflog_msg); 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 ac6667242c..8bc9997767 100644 --- a/builtin/unpack-objects.c +++ b/builtin/unpack-objects.c @@ -13,13 +13,15 @@ #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 off_t max_input_size; 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 +47,7 @@ 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)); } /* @@ -86,6 +88,8 @@ static void use(int bytes) if (signed_add_overflows(consumed_bytes, bytes)) die("pack too large for current definition of off_t"); consumed_bytes += bytes; + if (max_input_size && consumed_bytes > max_input_size) + die(_("pack exceeds maximum allowed size")); } static void *get_data(unsigned long size) @@ -123,7 +127,7 @@ static void *get_data(unsigned long size) } struct delta_info { - unsigned char base_sha1[20]; + struct object_id base_oid; unsigned nr; off_t base_offset; unsigned long size; @@ -133,13 +137,13 @@ struct delta_info { static struct delta_info *delta_list; -static void add_delta_to_list(unsigned nr, unsigned const char *base_sha1, +static void add_delta_to_list(unsigned nr, const struct object_id *base_oid, off_t base_offset, void *delta, unsigned long size) { struct delta_info *info = xmalloc(sizeof(*info)); - hashcpy(info->base_sha1, base_sha1); + oidcpy(&info->base_oid, base_oid); info->base_offset = base_offset; info->size = size; info->delta = delta; @@ -150,7 +154,7 @@ static void add_delta_to_list(unsigned nr, unsigned const char *base_sha1, struct obj_info { off_t offset; - unsigned char sha1[20]; + struct object_id oid; struct object *obj; }; @@ -166,10 +170,10 @@ static unsigned nr_objects; */ static void write_cached_object(struct object *obj, struct obj_buffer *obj_buf) { - unsigned char sha1[20]; + struct object_id oid; - 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)); + if (write_sha1_file(obj_buf->buffer, obj_buf->size, typename(obj->type), oid.hash) < 0) + die("failed to write object %s", oid_to_hex(&obj->oid)); obj->flags |= FLAG_WRITTEN; } @@ -178,7 +182,7 @@ static void write_cached_object(struct object *obj, struct obj_buffer *obj_buf) * 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; @@ -193,7 +197,7 @@ 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; @@ -202,12 +206,12 @@ static int check_object(struct object *obj, int type, void *data) obj_buf = lookup_object_buffer(obj); if (!obj_buf) - die("Whoops! Cannot find object '%s'", sha1_to_hex(obj->sha1)); - if (fsck_object(obj, obj_buf->buffer, obj_buf->size, 1, - fsck_error_function)) + 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)); + 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; } @@ -217,7 +221,7 @@ 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); } } @@ -233,19 +237,19 @@ static void write_object(unsigned nr, enum object_type type, void *buf, unsigned long size) { if (!strict) { - if (write_sha1_file(buf, size, typename(type), obj_list[nr].sha1) < 0) + if (write_sha1_file(buf, size, typename(type), obj_list[nr].oid.hash) < 0) die("failed to write object"); added_object(nr, type, buf, size); free(buf); obj_list[nr].obj = NULL; } else if (type == OBJ_BLOB) { struct blob *blob; - if (write_sha1_file(buf, size, typename(type), obj_list[nr].sha1) < 0) + if (write_sha1_file(buf, size, typename(type), obj_list[nr].oid.hash) < 0) die("failed to write object"); added_object(nr, type, buf, size); free(buf); - blob = lookup_blob(obj_list[nr].sha1); + blob = lookup_blob(&obj_list[nr].oid); if (blob) blob->object.flags |= FLAG_WRITTEN; else @@ -254,9 +258,10 @@ static void write_object(unsigned nr, enum object_type type, } else { struct object *obj; int eaten; - hash_sha1_file(buf, size, typename(type), obj_list[nr].sha1); + hash_sha1_file(buf, size, typename(type), obj_list[nr].oid.hash); added_object(nr, type, buf, size); - obj = parse_object_buffer(obj_list[nr].sha1, type, size, buf, &eaten); + obj = parse_object_buffer(&obj_list[nr].oid, type, size, buf, + &eaten); if (!obj) die("invalid %s", typename(type)); add_object_buffer(obj, buf, size); @@ -292,7 +297,7 @@ static void added_object(unsigned nr, enum object_type type, struct delta_info *info; while ((info = *p) != NULL) { - if (!hashcmp(info->base_sha1, obj_list[nr].sha1) || + if (!oidcmp(&info->base_oid, &obj_list[nr].oid) || info->base_offset == obj_list[nr].offset) { *p = info->next; p = &delta_list; @@ -316,12 +321,12 @@ static void unpack_non_delta_entry(enum object_type type, unsigned long size, free(buf); } -static int resolve_against_held(unsigned nr, const unsigned char *base, +static int resolve_against_held(unsigned nr, const struct object_id *base, void *delta_data, unsigned long delta_size) { struct object *obj; struct obj_buffer *obj_buffer; - obj = lookup_object(base); + obj = lookup_object(base->hash); if (!obj) return 0; obj_buffer = lookup_object_buffer(obj); @@ -337,25 +342,25 @@ static void unpack_delta_entry(enum object_type type, unsigned long delta_size, { void *delta_data, *base; unsigned long base_size; - unsigned char base_sha1[20]; + struct object_id base_oid; if (type == OBJ_REF_DELTA) { - hashcpy(base_sha1, fill(20)); - use(20); + hashcpy(base_oid.hash, fill(GIT_SHA1_RAWSZ)); + use(GIT_SHA1_RAWSZ); delta_data = get_data(delta_size); if (dry_run || !delta_data) { free(delta_data); return; } - if (has_sha1_file(base_sha1)) + if (has_object_file(&base_oid)) ; /* Ok we have this one */ - else if (resolve_against_held(nr, base_sha1, + else if (resolve_against_held(nr, &base_oid, delta_data, delta_size)) return; /* we are done */ else { /* cannot resolve yet --- queue it */ - hashcpy(obj_list[nr].sha1, null_sha1); - add_delta_to_list(nr, base_sha1, 0, delta_data, delta_size); + oidclr(&obj_list[nr].oid); + add_delta_to_list(nr, &base_oid, 0, delta_data, delta_size); return; } } else { @@ -395,8 +400,8 @@ static void unpack_delta_entry(enum object_type type, unsigned long delta_size, } else if (base_offset > obj_list[mid].offset) { lo = mid + 1; } else { - hashcpy(base_sha1, obj_list[mid].sha1); - base_found = !is_null_sha1(base_sha1); + oidcpy(&base_oid, &obj_list[mid].oid); + base_found = !is_null_oid(&base_oid); break; } } @@ -405,19 +410,19 @@ static void unpack_delta_entry(enum object_type type, unsigned long delta_size, * The delta base object is itself a delta that * has not been resolved yet. */ - hashcpy(obj_list[nr].sha1, null_sha1); - add_delta_to_list(nr, null_sha1, base_offset, delta_data, delta_size); + oidclr(&obj_list[nr].oid); + add_delta_to_list(nr, &null_oid, base_offset, delta_data, delta_size); return; } } - if (resolve_against_held(nr, base_sha1, delta_data, delta_size)) + if (resolve_against_held(nr, &base_oid, delta_data, delta_size)) return; - base = read_sha1_file(base_sha1, &type, &base_size); + base = read_sha1_file(base_oid.hash, &type, &base_size); if (!base) { error("failed to read delta-pack base object %s", - sha1_to_hex(base_sha1)); + oid_to_hex(&base_oid)); if (!recover) exit(1); has_errors = 1; @@ -501,7 +506,7 @@ static void unpack_all(void) int cmd_unpack_objects(int argc, const char **argv, const char *prefix) { int i; - unsigned char sha1[20]; + struct object_id oid; check_replace_refs = 0; @@ -529,6 +534,11 @@ int cmd_unpack_objects(int argc, const char **argv, const char *prefix) strict = 1; continue; } + 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; @@ -544,6 +554,10 @@ int cmd_unpack_objects(int argc, const char **argv, const char *prefix) len = sizeof(*hdr); continue; } + if (skip_prefix(arg, "--max-input-size=", &arg)) { + max_input_size = strtoumax(arg, NULL, 10); + continue; + } usage(unpack_usage); } @@ -553,12 +567,12 @@ int cmd_unpack_objects(int argc, const char **argv, const char *prefix) git_SHA1_Init(&ctx); unpack_all(); git_SHA1_Update(&ctx, buffer, offset); - git_SHA1_Final(sha1, &ctx); + git_SHA1_Final(oid.hash, &ctx); if (strict) write_rest(); - if (hashcmp(fill(20), sha1)) + if (hashcmp(fill(GIT_SHA1_RAWSZ), oid.hash)) die("final sha1 did not match"); - use(20); + use(GIT_SHA1_RAWSZ); /* Write the last part of the buffer to stdout */ while (len) { diff --git a/builtin/update-index.c b/builtin/update-index.c index 6271b54adc..f99b1e5790 100644 --- a/builtin/update-index.c +++ b/builtin/update-index.c @@ -33,6 +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, ...) @@ -48,6 +58,170 @@ 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; + char *cwd; + + strbuf_addstr(&mtime_dir, "mtime-test-XXXXXX"); + if (!mkdtemp(mtime_dir.buf)) + die_errno("Could not make temporary directory"); + + cwd = xgetcwd(); + fprintf(stderr, _("Testing mtime in '%s' "), cwd); + free(cwd); + + 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); @@ -83,9 +257,9 @@ static int remove_one_path(const char *path) */ static int process_lstat_error(const char *path, int err) { - if (err == ENOENT || err == ENOTDIR) + if (is_missing_file_error(err)) 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(const struct cache_entry *old, const char *path, int len, struct stat *st) @@ -105,7 +279,7 @@ static int add_one_path(const struct cache_entry *old, const char *path, int len fill_stat_cache_info(ce, st); ce->ce_mode = ce_mode_from_stat(old, st->st_mode); - if (index_path(ce->sha1, path, st, + if (index_path(ce->oid.hash, path, st, info_only ? 0 : HASH_WRITE_OBJECT)) { free(ce); return -1; @@ -142,7 +316,7 @@ static int add_one_path(const struct cache_entry *old, const char *path, int len */ static int process_directory(const char *path, int len, struct stat *st) { - unsigned char sha1[20]; + struct object_id oid; int pos = cache_name_pos(path, len); /* Exact match: file or existing gitlink */ @@ -151,7 +325,7 @@ static int process_directory(const char *path, int len, struct stat *st) if (S_ISGITLINK(ce->ce_mode)) { /* Do nothing to the index if there is no HEAD! */ - if (resolve_gitlink_ref(path, "HEAD", sha1) < 0) + if (resolve_gitlink_ref(path, "HEAD", oid.hash) < 0) return 0; return add_one_path(ce, path, len, st); @@ -177,7 +351,7 @@ static int process_directory(const char *path, int len, struct stat *st) } /* No match - should we add it as a gitlink? */ - if (!resolve_gitlink_ref(path, "HEAD", sha1)) + if (!resolve_gitlink_ref(path, "HEAD", oid.hash)) return add_one_path(NULL, path, len, st); /* Error out. */ @@ -220,7 +394,7 @@ static int process_path(const char *path) return add_one_path(ce, path, len, &st); } -static int add_cacheinfo(unsigned int mode, const unsigned char *sha1, +static int add_cacheinfo(unsigned int mode, const struct object_id *oid, const char *path, int stage) { int size, len, option; @@ -233,7 +407,7 @@ static int add_cacheinfo(unsigned int mode, const unsigned char *sha1, size = cache_entry_size(len); ce = xcalloc(1, size); - hashcpy(ce->sha1, sha1); + oidcpy(&ce->oid, oid); memcpy(ce->name, path, len); ce->ce_flags = create_ce_flags(stage); ce->ce_namelen = len; @@ -249,30 +423,18 @@ static int add_cacheinfo(unsigned int mode, const unsigned char *sha1, return 0; } -static void chmod_path(int flip, const char *path) +static void chmod_path(char flip, const char *path) { int pos; struct cache_entry *ce; - unsigned int mode; pos = cache_name_pos(path, strlen(path)); if (pos < 0) goto fail; ce = active_cache[pos]; - mode = ce->ce_mode; - if (!S_ISREG(mode)) - goto fail; - switch (flip) { - case '+': - ce->ce_mode |= 0111; break; - case '-': - ce->ce_mode &= ~0111; break; - default: + if (chmod_cache_entry(ce, flip) < 0) goto fail; - } - 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: @@ -307,15 +469,17 @@ static void update_one(const char *path) report("add '%s'", path); } -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]; + struct object_id oid; unsigned int mode; unsigned long ul; int stage; @@ -344,7 +508,7 @@ static void read_index_info(int line_termination) mode = ul; tab = strchr(ptr, '\t'); - if (!tab || tab - ptr < 41) + if (!tab || tab - ptr < GIT_SHA1_HEXSZ + 1) goto bad_line; if (tab[-2] == ' ' && '0' <= tab[-1] && tab[-1] <= '3') { @@ -357,11 +521,12 @@ static void read_index_info(int line_termination) ptr = tab + 1; /* point at the head of path */ } - if (get_sha1_hex(tab - 40, sha1) || tab[-41] != ' ') + if (get_oid_hex(tab - GIT_SHA1_HEXSZ, &oid) || + tab[-(GIT_SHA1_HEXSZ + 1)] != ' ') 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"); @@ -385,8 +550,8 @@ static void read_index_info(int line_termination) * ptr[-1] points at tab, * ptr[-41] is at the beginning of sha1 */ - ptr[-42] = ptr[-1] = 0; - if (add_cacheinfo(mode, sha1, path_name, stage)) + ptr[-(GIT_SHA1_HEXSZ + 2)] = ptr[-1] = 0; + if (add_cacheinfo(mode, &oid, path_name, stage)) die("git update-index: unable to update %s", path_name); } @@ -404,19 +569,19 @@ static const char * const update_index_usage[] = { NULL }; -static unsigned char head_sha1[20]; -static unsigned char merge_head_sha1[20]; +static struct object_id head_oid; +static struct object_id merge_head_oid; static struct cache_entry *read_one_ent(const char *which, - unsigned char *ent, const char *path, + struct object_id *ent, const char *path, int namelen, int stage) { unsigned mode; - unsigned char sha1[20]; + struct object_id oid; int size; struct cache_entry *ce; - if (get_tree_entry(ent, path, sha1, &mode)) { + if (get_tree_entry(ent->hash, path, oid.hash, &mode)) { if (which) error("%s: not in %s branch.", path, which); return NULL; @@ -429,7 +594,7 @@ static struct cache_entry *read_one_ent(const char *which, size = cache_entry_size(namelen); ce = xcalloc(1, size); - hashcpy(ce->sha1, sha1); + oidcpy(&ce->oid, &oid); memcpy(ce->name, path, namelen); ce->ce_flags = create_ce_flags(stage); ce->ce_namelen = namelen; @@ -479,14 +644,14 @@ static int unresolve_one(const char *path) * stuff HEAD version in stage #2, * stuff MERGE_HEAD version in stage #3. */ - ce_2 = read_one_ent("our", head_sha1, path, namelen, 2); - ce_3 = read_one_ent("their", merge_head_sha1, path, namelen, 3); + ce_2 = read_one_ent("our", &head_oid, path, namelen, 2); + ce_3 = read_one_ent("their", &merge_head_oid, path, namelen, 3); if (!ce_2 || !ce_3) { ret = -1; goto free_return; } - if (!hashcmp(ce_2->sha1, ce_3->sha1) && + if (!oidcmp(&ce_2->oid, &ce_3->oid) && ce_2->ce_mode == ce_3->ce_mode) { fprintf(stderr, "%s: identical in both, skipping.\n", path); @@ -511,9 +676,9 @@ static int unresolve_one(const char *path) static void read_head_pointers(void) { - if (read_ref("HEAD", head_sha1)) + if (read_ref("HEAD", head_oid.hash)) die("No HEAD -- no initial commit yet?"); - if (read_ref("MERGE_HEAD", merge_head_sha1)) { + if (read_ref("MERGE_HEAD", merge_head_oid.hash)) { fprintf(stderr, "Not in the middle of a merge.\n"); exit(0); } @@ -532,10 +697,9 @@ 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; } @@ -554,7 +718,7 @@ static int do_reupdate(int ac, const char **av, PATHSPEC_PREFER_CWD, prefix, av + 1); - if (read_ref("HEAD", head_sha1)) + if (read_ref("HEAD", head_oid.hash)) /* If there is no HEAD, that means it is an initial * commit. Update everything in the index. */ @@ -569,10 +733,10 @@ static int do_reupdate(int ac, const char **av, if (ce_stage(ce) || !ce_path_match(ce, &pathspec, NULL)) continue; if (has_head) - old = read_one_ent(NULL, head_sha1, + old = read_one_ent(NULL, &head_oid, ce->name, ce_namelen(ce), 0); if (old && ce->ce_mode == old->ce_mode && - !hashcmp(ce->sha1, old->sha1)) { + !oidcmp(&ce->oid, &old->oid)) { free(old); continue; /* unchanged */ } @@ -588,7 +752,7 @@ static int do_reupdate(int ac, const char **av, if (save_nr != active_nr) goto redo; } - free_pathspec(&pathspec); + clear_pathspec(&pathspec); return 0; } @@ -636,7 +800,7 @@ static int resolve_undo_clear_callback(const struct option *opt, static int parse_new_style_cacheinfo(const char *arg, unsigned int *mode, - unsigned char sha1[], + struct object_id *oid, const char **path) { unsigned long ul; @@ -651,21 +815,21 @@ static int parse_new_style_cacheinfo(const char *arg, return -1; /* not a new-style cacheinfo */ *mode = ul; endp++; - if (get_sha1_hex(endp, sha1) || endp[40] != ',') + if (get_oid_hex(endp, oid) || endp[GIT_SHA1_HEXSZ] != ',') return -1; - *path = endp + 41; + *path = endp + GIT_SHA1_HEXSZ + 1; return 0; } static int cacheinfo_callback(struct parse_opt_ctx_t *ctx, const struct option *opt, int unset) { - unsigned char sha1[20]; + struct object_id oid; unsigned int mode; const char *path; - if (!parse_new_style_cacheinfo(ctx->argv[1], &mode, sha1, &path)) { - if (add_cacheinfo(mode, sha1, path, 0)) + if (!parse_new_style_cacheinfo(ctx->argv[1], &mode, &oid, &path)) { + if (add_cacheinfo(mode, &oid, path, 0)) die("git update-index: --cacheinfo cannot add %s", path); ctx->argv++; ctx->argc--; @@ -674,8 +838,8 @@ static int cacheinfo_callback(struct parse_opt_ctx_t *ctx, if (ctx->argc <= 3) 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)) + get_oid_hex(*++ctx->argv, &oid) || + add_cacheinfo(mode, &oid, *++ctx->argv, 0)) die("git update-index: --cacheinfo cannot add %s", *ctx->argv); ctx->argc -= 3; return 0; @@ -684,12 +848,12 @@ 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; } @@ -741,7 +905,8 @@ 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; @@ -751,6 +916,7 @@ int cmd_update_index(int argc, const char **argv, const char *prefix) 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, @@ -802,13 +968,13 @@ int cmd_update_index(int argc, const char **argv, const char *prefix) N_("add to index only; do not add content to object database"), 1), OPT_SET_INT(0, "force-remove", &force_remove, N_("remove named paths even if present in worktree"), 1), - OPT_SET_INT('z', NULL, &line_termination, - N_("with --stdin: input lines are terminated by null bytes"), '\0'), + 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, 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, + {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}, @@ -833,6 +999,12 @@ int cmd_update_index(int argc, const char **argv, const char *prefix) 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() }; @@ -844,6 +1016,7 @@ int cmd_update_index(int argc, const char **argv, const char *prefix) /* We can't free this memory, it becomes part of a linked list parsed atexit() */ lock_file = xcalloc(1, sizeof(struct lock_file)); + /* we will diagnose later if it turns out that we need to update it */ newfd = hold_locked_index(lock_file, 0); if (newfd < 0) lock_error = errno; @@ -871,14 +1044,14 @@ 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); if (set_executable_bit) chmod_path(set_executable_bit, p); - free((char *)p); + free(p); ctx.argc--; ctx.argv++; break; @@ -892,6 +1065,8 @@ 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) @@ -905,39 +1080,70 @@ int cmd_update_index(int argc, const char **argv, const char *prefix) } 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); if (set_executable_bit) chmod_path(set_executable_bit, p); - 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; + if (git_config_get_split_index() == 0) + warning(_("core.splitIndex is set to false; " + "remove or change it, if you really want to " + "enable split index")); + if (the_index.split_index) + the_index.cache_changed |= SPLIT_INDEX_ORDERED; + else + add_split_index(&the_index); + } else if (!split_index) { + if (git_config_get_split_index() == 1) + warning(_("core.splitIndex is set to true; " + "remove or change it, if you really want to " + "disable split index")); + remove_split_index(&the_index); + } + + 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) { diff --git a/builtin/update-ref.c b/builtin/update-ref.c index 3d79a46b03..0b2ecf41ae 100644 --- a/builtin/update-ref.c +++ b/builtin/update-ref.c @@ -14,6 +14,7 @@ static const char * const git_update_ref_usage[] = { static char line_termination = '\n'; static int update_flags; +static unsigned create_reflog_flag; static const char *msg; /* @@ -200,7 +201,8 @@ static const char *parse_cmd_update(struct ref_transaction *transaction, if (ref_transaction_update(transaction, refname, new_sha1, have_old ? old_sha1 : NULL, - update_flags, msg, &err)) + update_flags | create_reflog_flag, + msg, &err)) die("%s", err.buf); update_flags = 0; @@ -231,7 +233,8 @@ static const char *parse_cmd_create(struct ref_transaction *transaction, die("create %s: extra input: %s", refname, next); if (ref_transaction_create(transaction, refname, new_sha1, - update_flags, msg, &err)) + update_flags | create_reflog_flag, + msg, &err)) die("%s", err.buf); update_flags = 0; @@ -354,6 +357,7 @@ int cmd_update_ref(int argc, const char **argv, const char *prefix) unsigned char sha1[20], oldsha1[20]; 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, N_("reason"), N_("reason of the update")), OPT_BOOL('d', NULL, &delete, N_("delete the reference")), @@ -361,6 +365,7 @@ int cmd_update_ref(int argc, const char **argv, const char *prefix) 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(), }; @@ -370,6 +375,8 @@ 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; @@ -408,15 +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(msg, refname, + (oldval && !is_null_sha1(oldsha1)) ? oldsha1 : NULL, + flags); else return update_ref(msg, refname, sha1, oldval ? oldsha1 : NULL, - flags, UPDATE_REFS_DIE_ON_ERR); + flags | create_reflog_flag, + UPDATE_REFS_DIE_ON_ERR); } diff --git a/builtin/upload-archive.c b/builtin/upload-archive.c index 32ab94cd06..cde06977b7 100644 --- a/builtin/upload-archive.c +++ b/builtin/upload-archive.c @@ -43,21 +43,20 @@ int cmd_upload_archive_writer(int argc, const char **argv, const char *prefix) } /* parse all options sent by the client */ - return write_archive(sent_argv.argc, sent_argv.argv, prefix, 0, NULL, 1); + return write_archive(sent_argv.argc, sent_argv.argv, prefix, 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) @@ -89,11 +88,11 @@ int cmd_upload_archive(int argc, const char **argv, const char *prefix) writer.git_cmd = 1; if (start_command(&writer)) { int err = errno; - packet_write(1, "NACK unable to spawn subprocess\n"); + packet_write_fmt(1, "NACK unable to spawn subprocess\n"); die("upload-archive: %s", strerror(err)); } - packet_write(1, "ACK\n"); + packet_write_fmt(1, "ACK\n"); packet_flush(1); while (1) { @@ -105,8 +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/verify-commit.c b/builtin/verify-commit.c index ec0c4e3d83..05b734e6d1 100644 --- a/builtin/verify-commit.c +++ b/builtin/verify-commit.c @@ -18,43 +18,39 @@ static const char * const verify_commit_usage[] = { NULL }; -static int run_gpg_verify(const unsigned char *sha1, const char *buf, unsigned long size, int verbose) +static int run_gpg_verify(const struct object_id *oid, const char *buf, unsigned long size, unsigned flags) { struct signature_check signature_check; + int ret; memset(&signature_check, 0, sizeof(signature_check)); - check_commit_signature(lookup_commit(sha1), &signature_check); - - if (verbose && signature_check.payload) - fputs(signature_check.payload, stdout); - - if (signature_check.gpg_output) - fputs(signature_check.gpg_output, stderr); + ret = check_commit_signature(lookup_commit(oid), &signature_check); + print_signature_buffer(&signature_check, flags); signature_check_clear(&signature_check); - return signature_check.result != 'G'; + return ret; } -static int verify_commit(const char *name, int verbose) +static int verify_commit(const char *name, unsigned flags) { enum object_type type; - unsigned char sha1[20]; + struct object_id oid; char *buf; unsigned long size; int ret; - if (get_sha1(name, sha1)) + if (get_oid(name, &oid)) return error("commit '%s' not found.", name); - buf = read_sha1_file(sha1, &type, &size); + buf = read_sha1_file(oid.hash, &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, verbose); + ret = run_gpg_verify(&oid, buf, size, flags); free(buf); return ret; @@ -71,8 +67,10 @@ static int git_verify_commit_config(const char *var, const char *value, void *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() }; @@ -83,11 +81,14 @@ int cmd_verify_commit(int argc, const char **argv, const char *prefix) 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++], verbose)) + if (verify_commit(argv[i++], flags)) had_error = 1; return had_error; } diff --git a/builtin/verify-tag.c b/builtin/verify-tag.c index 53c68fce3a..5199553d91 100644 --- a/builtin/verify-tag.c +++ b/builtin/verify-tag.c @@ -12,52 +12,13 @@ #include <signal.h> #include "parse-options.h" #include "gpg-interface.h" +#include "ref-filter.h" static const char * const verify_tag_usage[] = { - N_("git verify-tag [-v | --verbose] <tag>..."), + N_("git verify-tag [-v | --verbose] [--format=<format>] <tag>..."), NULL }; -static int run_gpg_verify(const char *buf, unsigned long size, int verbose) -{ - 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, 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; -} - static int git_verify_tag_config(const char *var, const char *value, void *cb) { int status = git_gpg_config(var, value, cb); @@ -69,8 +30,12 @@ static int git_verify_tag_config(const char *var, const char *value, void *cb) int cmd_verify_tag(int argc, const char **argv, const char *prefix) { int i = 1, verbose = 0, had_error = 0; + unsigned flags = 0; + char *fmt_pretty = NULL; const struct option verify_tag_options[] = { OPT__VERBOSE(&verbose, N_("print tag contents")), + OPT_BIT(0, "raw", &flags, N_("print raw gpg status output"), GPG_VERIFY_RAW), + OPT_STRING( 0 , "format", &fmt_pretty, N_("format"), N_("format to use for the output")), OPT_END() }; @@ -81,11 +46,29 @@ int cmd_verify_tag(int argc, const char **argv, const char *prefix) 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; + + if (fmt_pretty) { + verify_ref_format(fmt_pretty); + flags |= GPG_VERIFY_OMIT_STATUS; + } + + 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); + continue; + } + + if (gpg_verify_tag(sha1, name, flags)) { had_error = 1; + continue; + } + + if (fmt_pretty) + pretty_print_ref(name, sha1, fmt_pretty); + } return had_error; } diff --git a/builtin/worktree.c b/builtin/worktree.c new file mode 100644 index 0000000000..793306ea51 --- /dev/null +++ b/builtin/worktree.c @@ -0,0 +1,558 @@ +#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 list [<options>]"), + N_("git worktree lock [<options>] <path>"), + N_("git worktree prune [<options>]"), + N_("git worktree unlock <path>"), + NULL +}; + +struct add_opts { + int force; + int detach; + int checkout; + int keep_locked; + const char *new_branch; + int force_new_branch; +}; + +static int show_only; +static int verbose; +static timestamp_t 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 (is_dot_or_dotdot(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; + git_path_buf(&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 working trees")), + OPT_EXPIRY_DATE(0, "expire", &expire, + N_("expire working trees older than <time>")), + OPT_END() + }; + + expire = TIME_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 = CHILD_PROCESS_INIT; + 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); + git_path_buf(&sb_repo, "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); + if (!opts->keep_locked) + write_file(sb.buf, "initializing"); + else + write_file(sb.buf, "added with --lock"); + + 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, "%s", sha1_to_hex(null_sha1)); + 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); + 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: + if (ret || !opts->keep_locked) { + 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; + char *path; + const char *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_BOOL(0, "lock", &opts.keep_locked, N_("keep the new working tree locked")), + 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_filename(prefix, av[0]); + branch = ac < 2 ? "HEAD" : av[1]; + + if (!strcmp(branch, "-")) + branch = "@{-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 = CHILD_PROCESS_INIT; + 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 if (wt->head_ref) + 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_addstr(&sb, "(detached HEAD)"); + else if (wt->head_ref) { + char *ref = shorten_unambiguous_ref(wt->head_ref, 0); + strbuf_addf(&sb, "[%s]", ref); + free(ref); + } else + strbuf_addstr(&sb, "(error)"); + } + 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(GWT_SORT_LINKED); + 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; +} + +static int lock_worktree(int ac, const char **av, const char *prefix) +{ + const char *reason = "", *old_reason; + struct option options[] = { + OPT_STRING(0, "reason", &reason, N_("string"), + N_("reason for locking")), + OPT_END() + }; + struct worktree **worktrees, *wt; + + ac = parse_options(ac, av, prefix, options, worktree_usage, 0); + if (ac != 1) + usage_with_options(worktree_usage, options); + + worktrees = get_worktrees(0); + wt = find_worktree(worktrees, prefix, av[0]); + if (!wt) + die(_("'%s' is not a working tree"), av[0]); + if (is_main_worktree(wt)) + die(_("The main working tree cannot be locked or unlocked")); + + old_reason = is_worktree_locked(wt); + if (old_reason) { + if (*old_reason) + die(_("'%s' is already locked, reason: %s"), + av[0], old_reason); + die(_("'%s' is already locked"), av[0]); + } + + write_file(git_common_path("worktrees/%s/locked", wt->id), + "%s", reason); + free_worktrees(worktrees); + return 0; +} + +static int unlock_worktree(int ac, const char **av, const char *prefix) +{ + struct option options[] = { + OPT_END() + }; + struct worktree **worktrees, *wt; + int ret; + + ac = parse_options(ac, av, prefix, options, worktree_usage, 0); + if (ac != 1) + usage_with_options(worktree_usage, options); + + worktrees = get_worktrees(0); + wt = find_worktree(worktrees, prefix, av[0]); + if (!wt) + die(_("'%s' is not a working tree"), av[0]); + if (is_main_worktree(wt)) + die(_("The main working tree cannot be locked or unlocked")); + if (!is_worktree_locked(wt)) + die(_("'%s' is not locked"), av[0]); + ret = unlink_or_warn(git_common_path("worktrees/%s/locked", wt->id)); + free_worktrees(worktrees); + return ret; +} + +int cmd_worktree(int ac, const char **av, const char *prefix) +{ + struct option options[] = { + OPT_END() + }; + + git_config(git_default_config, NULL); + + if (ac < 2) + usage_with_options(worktree_usage, options); + if (!prefix) + prefix = ""; + 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); + if (!strcmp(av[1], "lock")) + return lock_worktree(ac - 1, av + 1, prefix); + if (!strcmp(av[1], "unlock")) + return unlock_worktree(ac - 1, av + 1, prefix); + usage_with_options(worktree_usage, options); +} |