diff options
Diffstat (limited to 'builtin')
76 files changed, 5510 insertions, 2864 deletions
diff --git a/builtin/add.c b/builtin/add.c index d7e3e44d06..ae6d3e262b 100644 --- a/builtin/add.c +++ b/builtin/add.c @@ -5,6 +5,7 @@ */ #include "cache.h" #include "builtin.h" +#include "lockfile.h" #include "dir.h" #include "pathspec.h" #include "exec_cmd.h" @@ -15,6 +16,7 @@ #include "diffcore.h" #include "revision.h" #include "bulk-checkin.h" +#include "argv-array.h" static const char * const builtin_add_usage[] = { N_("git add [options] [--] <pathspec>..."), @@ -26,55 +28,8 @@ static int take_worktree_changes; struct update_callback_data { int flags; int add_errors; - const char *implicit_dot; - size_t implicit_dot_len; - - /* only needed for 2.0 transition preparation */ - int warn_add_would_remove; }; -static const char *option_with_implicit_dot; -static const char *short_option_with_implicit_dot; - -static void warn_pathless_add(void) -{ - static int shown; - assert(option_with_implicit_dot && short_option_with_implicit_dot); - - if (shown) - return; - shown = 1; - - /* - * To be consistent with "git add -p" and most Git - * commands, we should default to being tree-wide, but - * this is not the original behavior and can't be - * changed until users trained themselves not to type - * "git add -u" or "git add -A". For now, we warn and - * keep the old behavior. Later, the behavior can be changed - * to tree-wide, keeping the warning for a while, and - * eventually we can drop the warning. - */ - warning(_("The behavior of 'git add %s (or %s)' with no path argument from a\n" - "subdirectory of the tree will change in Git 2.0 and should not be used anymore.\n" - "To add content for the whole tree, run:\n" - "\n" - " git add %s :/\n" - " (or git add %s :/)\n" - "\n" - "To restrict the command to the current directory, run:\n" - "\n" - " git add %s .\n" - " (or git add %s .)\n" - "\n" - "With the current Git version, the command is restricted to " - "the current directory.\n" - ""), - option_with_implicit_dot, short_option_with_implicit_dot, - option_with_implicit_dot, short_option_with_implicit_dot, - option_with_implicit_dot, short_option_with_implicit_dot); -} - static int fix_unmerged_status(struct diff_filepair *p, struct update_callback_data *data) { @@ -96,49 +51,15 @@ static int fix_unmerged_status(struct diff_filepair *p, return DIFF_STATUS_MODIFIED; } -static const char *add_would_remove_warning = N_( - "You ran 'git add' with neither '-A (--all)' or '--ignore-removal',\n" -"whose behaviour will change in Git 2.0 with respect to paths you removed.\n" -"Paths like '%s' that are\n" -"removed from your working tree are ignored with this version of Git.\n" -"\n" -"* 'git add --ignore-removal <pathspec>', which is the current default,\n" -" ignores paths you removed from your working tree.\n" -"\n" -"* 'git add --all <pathspec>' will let you also record the removals.\n" -"\n" -"Run 'git status' to check the paths you removed from your working tree.\n"); - -static void warn_add_would_remove(const char *path) -{ - warning(_(add_would_remove_warning), path); -} - static void update_callback(struct diff_queue_struct *q, struct diff_options *opt, void *cbdata) { int i; struct update_callback_data *data = cbdata; - const char *implicit_dot = data->implicit_dot; - size_t implicit_dot_len = data->implicit_dot_len; for (i = 0; i < q->nr; i++) { struct diff_filepair *p = q->queue[i]; const char *path = p->one->path; - /* - * Check if "git add -A" or "git add -u" was run from a - * subdirectory with a modified file outside that directory, - * and warn if so. - * - * "git add -u" will behave like "git add -u :/" instead of - * "git add -u ." in the future. This warning prepares for - * that change. - */ - if (implicit_dot && - strncmp_icase(path, implicit_dot, implicit_dot_len)) { - warn_pathless_add(); - continue; - } switch (fix_unmerged_status(p, data)) { default: die(_("unexpected diff status %c"), p->status); @@ -151,10 +72,6 @@ static void update_callback(struct diff_queue_struct *q, } break; case DIFF_STATUS_DELETED: - if (data->warn_add_would_remove) { - warn_add_would_remove(path); - data->warn_add_would_remove = 0; - } if (data->flags & ADD_CACHE_IGNORE_REMOVAL) break; if (!(data->flags & ADD_CACHE_PRETEND)) @@ -166,37 +83,28 @@ static void update_callback(struct diff_queue_struct *q, } } -static void update_files_in_cache(const char *prefix, - const struct pathspec *pathspec, - struct update_callback_data *data) +int add_files_to_cache(const char *prefix, + const struct pathspec *pathspec, int flags) { + struct update_callback_data data; struct rev_info rev; + memset(&data, 0, sizeof(data)); + data.flags = flags; + init_revisions(&rev, prefix); setup_revisions(0, NULL, &rev, NULL); if (pathspec) copy_pathspec(&rev.prune_data, pathspec); rev.diffopt.output_format = DIFF_FORMAT_CALLBACK; rev.diffopt.format_callback = update_callback; - rev.diffopt.format_callback_data = data; + rev.diffopt.format_callback_data = &data; rev.max_count = 0; /* do not compare unmerged paths with stage #2 */ run_diff_files(&rev, DIFF_RACY_IS_MODIFIED); -} - -int add_files_to_cache(const char *prefix, - const struct pathspec *pathspec, int flags) -{ - struct update_callback_data data; - - memset(&data, 0, sizeof(data)); - data.flags = flags; - update_files_in_cache(prefix, pathspec, &data); return !!data.add_errors; } -#define WARN_IMPLICIT_DOT (1u << 0) -static char *prune_directory(struct dir_struct *dir, struct pathspec *pathspec, - int prefix, unsigned flag) +static char *prune_directory(struct dir_struct *dir, struct pathspec *pathspec, int prefix) { char *seen; int i; @@ -208,19 +116,8 @@ static char *prune_directory(struct dir_struct *dir, struct pathspec *pathspec, i = dir->nr; while (--i >= 0) { struct dir_entry *entry = *src++; - if (match_pathspec_depth(pathspec, entry->name, entry->len, - prefix, seen)) + if (dir_path_match(entry, pathspec, prefix, seen)) *dst++ = entry; - else if (flag & WARN_IMPLICIT_DOT) - /* - * "git add -A" was run from a subdirectory with a - * new file outside that directory. - * - * "git add -A" will behave like "git add -A :/" - * instead of "git add -A ." in the future. - * Warn about the coming behavior change. - */ - warn_pathless_add(); } dir->nr = dst - dir->entries; add_pathspec_matches_against_index(pathspec, seen); @@ -246,23 +143,21 @@ static void refresh(int verbose, const struct pathspec *pathspec) int run_add_interactive(const char *revision, const char *patch_mode, const struct pathspec *pathspec) { - int status, ac, i; - const char **args; + int status, i; + struct argv_array argv = ARGV_ARRAY_INIT; - args = xcalloc(sizeof(const char *), (pathspec->nr + 6)); - ac = 0; - args[ac++] = "add--interactive"; + argv_array_push(&argv, "add--interactive"); if (patch_mode) - args[ac++] = patch_mode; + argv_array_push(&argv, patch_mode); if (revision) - args[ac++] = revision; - args[ac++] = "--"; + argv_array_push(&argv, revision); + argv_array_push(&argv, "--"); for (i = 0; i < pathspec->nr; i++) /* pass original pathspec, to be re-parsed */ - args[ac++] = pathspec->items[i].original; + argv_array_push(&argv, pathspec->items[i].original); - status = run_command_v_opt(args, RUN_GIT_CMD); - free(args); + status = run_command_v_opt(argv.argv, RUN_GIT_CMD); + argv_array_clear(&argv); return status; } @@ -286,7 +181,7 @@ static int edit_patch(int argc, const char **argv, const char *prefix) char *file = git_pathdup("ADD_EDIT.patch"); const char *apply_argv[] = { "apply", "--recount", "--cached", NULL, NULL }; - struct child_process child; + struct child_process child = CHILD_PROCESS_INIT; struct rev_info rev; int out; struct stat st; @@ -320,7 +215,6 @@ static int edit_patch(int argc, const char **argv, const char *prefix) if (!st.st_size) die(_("Empty patch. Aborted.")); - memset(&child, 0, sizeof(child)); child.git_cmd = 1; child.argv = apply_argv; if (run_command(&child)) @@ -339,7 +233,7 @@ N_("The following paths are ignored by one of your .gitignore files:\n"); static int verbose, show_only, ignored_too, refresh_only; static int ignore_add_errors, intent_to_add, ignore_missing; -#define ADDREMOVE_DEFAULT 0 /* Change to 1 in Git 2.0 */ +#define ADDREMOVE_DEFAULT 1 static int addremove = ADDREMOVE_DEFAULT; static int addremove_explicit = -1; /* unspecified */ @@ -405,15 +299,12 @@ static int add_files(struct dir_struct *dir, int flags) int cmd_add(int argc, const char **argv, const char *prefix) { int exit_status = 0; - int newfd; struct pathspec pathspec; struct dir_struct dir; int flags; int add_new_files; int require_pathspec; char *seen = NULL; - int implicit_dot = 0; - struct update_callback_data update_data; git_config(add_config, NULL); @@ -437,50 +328,30 @@ int cmd_add(int argc, const char **argv, const char *prefix) if (addremove && take_worktree_changes) die(_("-A and -u are mutually incompatible")); - /* - * Warn when "git add pathspec..." was given without "-u" or "-A" - * and pathspec... covers a removed path. - */ - memset(&update_data, 0, sizeof(update_data)); - if (!take_worktree_changes && addremove_explicit < 0) - update_data.warn_add_would_remove = 1; - if (!take_worktree_changes && addremove_explicit < 0 && argc) - /* - * Turn "git add pathspec..." to "git add -A pathspec..." - * in Git 2.0 but not yet - */ - ; /* addremove = 1; */ + /* Turn "git add pathspec..." to "git add -A pathspec..." */ + addremove = 1; if (!show_only && ignore_missing) die(_("Option --ignore-missing can only be used together with --dry-run")); - if (addremove) { - option_with_implicit_dot = "--all"; - short_option_with_implicit_dot = "-A"; - } - if (take_worktree_changes) { - option_with_implicit_dot = "--update"; - short_option_with_implicit_dot = "-u"; - } - if (option_with_implicit_dot && !argc) { - static const char *here[2] = { ".", NULL }; + + if ((0 < addremove_explicit || take_worktree_changes) && !argc) { + static const char *whole[2] = { ":/", NULL }; argc = 1; - argv = here; - implicit_dot = 1; + argv = whole; } add_new_files = !take_worktree_changes && !refresh_only; require_pathspec = !take_worktree_changes; - newfd = hold_locked_index(&lock_file, 1); + hold_locked_index(&lock_file, 1); flags = ((verbose ? ADD_CACHE_VERBOSE : 0) | (show_only ? ADD_CACHE_PRETEND : 0) | (intent_to_add ? ADD_CACHE_INTENT : 0) | (ignore_add_errors ? ADD_CACHE_IGNORE_ERRORS : 0) | (!(addremove || take_worktree_changes) - ? ADD_CACHE_IGNORE_REMOVAL : 0)) | - (implicit_dot ? ADD_CACHE_IMPLICIT_DOT : 0); + ? ADD_CACHE_IGNORE_REMOVAL : 0)); if (require_pathspec && argc == 0) { fprintf(stderr, _("Nothing specified, nothing added.\n")); @@ -514,18 +385,15 @@ int cmd_add(int argc, const char **argv, const char *prefix) memset(&empty_pathspec, 0, sizeof(empty_pathspec)); /* This picks up the paths that are not tracked */ - baselen = fill_directory(&dir, implicit_dot ? &empty_pathspec : &pathspec); + baselen = fill_directory(&dir, &pathspec); if (pathspec.nr) - seen = prune_directory(&dir, &pathspec, baselen, - implicit_dot ? WARN_IMPLICIT_DOT : 0); + seen = prune_directory(&dir, &pathspec, baselen); } if (refresh_only) { refresh(verbose, &pathspec); goto finish; } - if (implicit_dot && prefix) - refresh_cache(REFRESH_QUIET); if (pathspec.nr) { int i; @@ -540,10 +408,13 @@ int cmd_add(int argc, const char **argv, const char *prefix) PATHSPEC_FROMTOP | PATHSPEC_LITERAL | PATHSPEC_GLOB | - PATHSPEC_ICASE); + PATHSPEC_ICASE | + PATHSPEC_EXCLUDE); for (i = 0; i < pathspec.nr; i++) { const char *path = pathspec.items[i].match; + if (pathspec.items[i].magic & PATHSPEC_EXCLUDE) + continue; if (!seen[i] && path[0] && ((pathspec.items[i].magic & (PATHSPEC_GLOB | PATHSPEC_ICASE)) || @@ -562,21 +433,8 @@ int cmd_add(int argc, const char **argv, const char *prefix) plug_bulk_checkin(); - if ((flags & ADD_CACHE_IMPLICIT_DOT) && prefix) { - /* - * Check for modified files throughout the worktree so - * update_callback has a chance to warn about changes - * outside the cwd. - */ - update_data.implicit_dot = prefix; - update_data.implicit_dot_len = strlen(prefix); - free_pathspec(&pathspec); - memset(&pathspec, 0, sizeof(pathspec)); - } - update_data.flags = flags & ~ADD_CACHE_IMPLICIT_DOT; - update_files_in_cache(prefix, &pathspec, &update_data); + exit_status |= add_files_to_cache(prefix, &pathspec, flags); - exit_status |= !!update_data.add_errors; if (add_new_files) exit_status |= add_files(&dir, flags); @@ -584,8 +442,7 @@ int cmd_add(int argc, const char **argv, const char *prefix) finish: if (active_cache_changed) { - if (write_cache(newfd, active_cache, active_nr) || - commit_locked_index(&lock_file)) + if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK)) die(_("Unable to write new index file")); } diff --git a/builtin/apply.c b/builtin/apply.c index ef32e4f624..6696ea4c3f 100644 --- a/builtin/apply.c +++ b/builtin/apply.c @@ -7,6 +7,7 @@ * */ #include "cache.h" +#include "lockfile.h" #include "cache-tree.h" #include "quote.h" #include "blob.h" @@ -300,11 +301,13 @@ static int fuzzy_matchlines(const char *s1, size_t n1, while ((*last2 == '\r') || (*last2 == '\n')) last2--; - /* skip leading whitespace */ - while (isspace(*s1) && (s1 <= last1)) - s1++; - while (isspace(*s2) && (s2 <= last2)) - s2++; + /* skip leading whitespaces, if both begin with whitespace */ + if (s1 <= last1 && s2 <= last2 && isspace(*s1) && isspace(*s2)) { + while (isspace(*s1) && (s1 <= last1)) + s1++; + while (isspace(*s2) && (s2 <= last2)) + s2++; + } /* early return if both lines are empty */ if ((s1 > last1) && (s2 > last2)) return 1; @@ -433,7 +436,7 @@ static unsigned long linelen(const char *buffer, unsigned long size) static int is_dev_null(const char *str) { - return !memcmp("/dev/null", str, 9) && isspace(str[9]); + return skip_prefix(str, "/dev/null", &str) && isspace(*str); } #define TERM_SPACE 1 @@ -1073,7 +1076,7 @@ static int gitdiff_index(const char *line, struct patch *patch) line = ptr + 2; ptr = strchr(line, ' '); - eol = strchr(line, '\n'); + eol = strchrnul(line, '\n'); if (!ptr || eol < ptr) ptr = eol; @@ -1279,9 +1282,7 @@ static int parse_git_header(const char *line, int len, unsigned int size, struct */ patch->def_name = git_header_name(line, len); if (patch->def_name && root) { - char *s = xmalloc(root_len + strlen(patch->def_name) + 1); - strcpy(s, root); - strcpy(s + root_len, patch->def_name); + char *s = xstrfmt("%s%s", root, patch->def_name); free(patch->def_name); patch->def_name = s; } @@ -1409,10 +1410,10 @@ static void recount_diff(const char *line, int size, struct fragment *fragment) case '\\': continue; case '@': - ret = size < 3 || prefixcmp(line, "@@ "); + ret = size < 3 || !starts_with(line, "@@ "); break; case 'd': - ret = size < 5 || prefixcmp(line, "diff "); + ret = size < 5 || !starts_with(line, "diff "); break; default: ret = -1; @@ -1798,11 +1799,11 @@ static struct fragment *parse_binary_hunk(char **buf_p, *status_p = 0; - if (!prefixcmp(buffer, "delta ")) { + if (starts_with(buffer, "delta ")) { patch_method = BINARY_DELTA_DEFLATED; origlen = strtoul(buffer + 6, NULL, 10); } - else if (!prefixcmp(buffer, "literal ")) { + else if (starts_with(buffer, "literal ")) { patch_method = BINARY_LITERAL_DEFLATED; origlen = strtoul(buffer + 8, NULL, 10); } @@ -1920,6 +1921,66 @@ static int parse_binary(char *buffer, unsigned long size, struct patch *patch) return used; } +static void prefix_one(char **name) +{ + char *old_name = *name; + if (!old_name) + return; + *name = xstrdup(prefix_filename(prefix, prefix_length, *name)); + free(old_name); +} + +static void prefix_patch(struct patch *p) +{ + if (!prefix || p->is_toplevel_relative) + return; + prefix_one(&p->new_name); + prefix_one(&p->old_name); +} + +/* + * include/exclude + */ + +static struct string_list limit_by_name; +static int has_include; +static void add_name_limit(const char *name, int exclude) +{ + struct string_list_item *it; + + it = string_list_append(&limit_by_name, name); + it->util = exclude ? NULL : (void *) 1; +} + +static int use_patch(struct patch *p) +{ + const char *pathname = p->new_name ? p->new_name : p->old_name; + int i; + + /* Paths outside are not touched regardless of "--include" */ + if (0 < prefix_length) { + int pathlen = strlen(pathname); + if (pathlen <= prefix_length || + memcmp(prefix, pathname, prefix_length)) + return 0; + } + + /* See if it matches any of exclude/include rule */ + for (i = 0; i < limit_by_name.nr; i++) { + struct string_list_item *it = &limit_by_name.items[i]; + if (!wildmatch(it->string, pathname, 0, NULL)) + return (it->util != NULL); + } + + /* + * If we had any include, a path that does not match any rule is + * not used. Otherwise, we saw bunch of exclude rules (or none) + * and such a path is used. + */ + return !has_include; +} + + /* * Read the patch text in "buffer" that extends for "size" bytes; stop * reading after seeing a single patch (i.e. changes to a single file). @@ -1935,21 +1996,20 @@ static int parse_chunk(char *buffer, unsigned long size, struct patch *patch) if (offset < 0) return offset; - patch->ws_rule = whitespace_rule(patch->new_name - ? patch->new_name - : patch->old_name); + prefix_patch(patch); + + if (!use_patch(patch)) + patch->ws_rule = 0; + else + patch->ws_rule = whitespace_rule(patch->new_name + ? patch->new_name + : patch->old_name); patchsize = parse_single_patch(buffer + offset + hdrsize, size - offset - hdrsize, patch); if (!patchsize) { - static const char *binhdr[] = { - "Binary files ", - "Files ", - NULL, - }; static const char git_binary[] = "GIT binary patch\n"; - int i; int hd = hdrsize + offset; unsigned long llen = linelen(buffer + hd, size - hd); @@ -1965,6 +2025,12 @@ static int parse_chunk(char *buffer, unsigned long size, struct patch *patch) 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 && @@ -2561,7 +2627,7 @@ static void update_image(struct image *img, * NOTE: this knows that we never call remove_first_line() * on anything other than pre/post image. */ - img->line = xrealloc(img->line, nr * sizeof(*img->line)); + REALLOC_ARRAY(img->line, nr); img->line_allocated = img->line; } if (preimage_limit != postimage->nr) @@ -2867,9 +2933,7 @@ static int apply_binary_fragment(struct image *img, struct patch *patch) case BINARY_LITERAL_DEFLATED: clear_image(img); img->len = fragment->size; - img->buf = xmalloc(img->len+1); - memcpy(img->buf, fragment->patch, img->len); - img->buf[img->len] = '\0'; + img->buf = xmemdupz(fragment->patch, img->len); return 0; } return -1; @@ -3084,13 +3148,15 @@ static void prepare_fn_table(struct patch *patch) } } -static int checkout_target(struct cache_entry *ce, struct stat *st) +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; @@ -3257,7 +3323,7 @@ static int load_current(struct image *image, struct patch *patch) if (lstat(name, &st)) { if (errno != ENOENT) return error(_("%s: %s"), name, strerror(errno)); - if (checkout_target(ce, &st)) + if (checkout_target(&the_index, ce, &st)) return -1; } if (verify_index_match(ce, &st)) @@ -3411,7 +3477,7 @@ static int check_preimage(struct patch *patch, struct cache_entry **ce, struct s } *ce = active_cache[pos]; if (stat_ret < 0) { - if (checkout_target(*ce, st)) + if (checkout_target(&the_index, *ce, st)) return -1; } if (!cached && verify_index_match(*ce, st)) @@ -3627,12 +3693,12 @@ static int preimage_sha1_in_gitlink_patch(struct patch *p, unsigned char sha1[20 hunk->oldpos == 1 && hunk->oldlines == 1 && /* does preimage begin with the heading? */ (preimage = memchr(hunk->patch, '\n', hunk->size)) != NULL && - !prefixcmp(++preimage, heading) && + 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? */ - !prefixcmp(preimage + sizeof(heading) - 1, p->old_sha1_prefix)) + 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 */ @@ -3644,7 +3710,7 @@ static void build_fake_ancestor(struct patch *list, const char *filename) { struct patch *patch; struct index_state result = { NULL }; - int fd; + static struct lock_file lock; /* Once we start supporting the reverse patch, it may be * worth showing the new sha1 prefix, but until then... @@ -3682,8 +3748,8 @@ static void build_fake_ancestor(struct patch *list, const char *filename) die ("Could not add %s to temporary index", name); } - fd = open(filename, O_WRONLY | O_CREAT, 0666); - if (fd < 0 || write_index(&result, fd) || close(fd)) + hold_lock_file_for_update(&lock, filename, LOCK_DIE_ON_ERROR); + if (write_locked_index(&result, &lock, COMMIT_LOCK)) die ("Could not write temporary index to %s", filename); discard_index(&result); @@ -3845,9 +3911,10 @@ static void add_index_file(const char *path, unsigned mode, void *buf, unsigned ce->ce_flags = create_ce_flags(0); ce->ce_namelen = namelen; if (S_ISGITLINK(mode)) { - const char *s = buf; + const char *s; - if (get_sha1_hex(s + strlen("Subproject commit "), ce->sha1)) + if (!skip_prefix(buf, "Subproject commit ", &s) || + get_sha1_hex(s, ce->sha1)) die(_("corrupt patch for submodule %s"), path); } else { if (!cached) { @@ -4061,7 +4128,7 @@ static int write_out_one_reject(struct patch *patch) return error(_("cannot open %s: %s"), namebuf, strerror(errno)); /* Normal git tools never deal with .rej, so do not pretend - * this is a git patch by saying --git nor give extended + * this is a git patch by saying --git or giving extended * headers. While at it, maybe please "kompare" that wants * the trailing TAB and some garbage at the end of line ;-). */ @@ -4126,64 +4193,6 @@ static int write_out_results(struct patch *list) static struct lock_file lock_file; -static struct string_list limit_by_name; -static int has_include; -static void add_name_limit(const char *name, int exclude) -{ - struct string_list_item *it; - - it = string_list_append(&limit_by_name, name); - it->util = exclude ? NULL : (void *) 1; -} - -static int use_patch(struct patch *p) -{ - const char *pathname = p->new_name ? p->new_name : p->old_name; - int i; - - /* 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 (!fnmatch(it->string, pathname, 0)) - 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; -} - - -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_patches(struct patch *p) -{ - if (!prefix || p->is_toplevel_relative) - return; - for ( ; p; p = p->next) { - prefix_one(&p->new_name); - prefix_one(&p->old_name); - } -} - #define INACCURATE_EOF (1<<0) #define RECOUNT (1<<1) @@ -4209,8 +4218,6 @@ static int apply_patch(int fd, const char *filename, int options) break; if (apply_in_reverse) reverse_patches(patch); - if (prefix) - prefix_patches(patch); if (use_patch(patch)) { patch_stats(patch); *listp = patch; @@ -4268,13 +4275,11 @@ static int apply_patch(int fd, const char *filename, int options) return 0; } -static int git_apply_config(const char *var, const char *value, void *cb) +static void git_apply_config(void) { - if (!strcmp(var, "apply.whitespace")) - return git_config_string(&apply_default_whitespace, var, value); - else if (!strcmp(var, "apply.ignorewhitespace")) - return git_config_string(&apply_default_ignorewhitespace, var, value); - return git_default_config(var, value, cb); + git_config_get_string_const("apply.whitespace", &apply_default_whitespace); + git_config_get_string_const("apply.ignorewhitespace", &apply_default_ignorewhitespace); + git_config(git_default_config, NULL); } static int option_parse_exclude(const struct option *opt, @@ -4422,7 +4427,7 @@ int cmd_apply(int argc, const char **argv, const char *prefix_) prefix = prefix_; prefix_length = prefix ? strlen(prefix) : 0; - git_config(git_apply_config, NULL); + git_apply_config(); if (apply_default_whitespace) parse_whitespace_option(apply_default_whitespace); if (apply_default_ignorewhitespace) @@ -4501,8 +4506,7 @@ int cmd_apply(int argc, const char **argv, const char *prefix_) } if (update_index) { - if (write_cache(newfd, active_cache, active_nr) || - commit_locked_index(&lock_file)) + if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK)) die(_("Unable to write new index file")); } diff --git a/builtin/archive.c b/builtin/archive.c index 49178f159e..a1e3b940c2 100644 --- a/builtin/archive.c +++ b/builtin/archive.c @@ -57,9 +57,9 @@ static int run_remote_archiver(int argc, const char **argv, if (!buf) die(_("git archive: expected ACK/NAK, got EOF")); if (strcmp(buf, "ACK")) { - if (!prefixcmp(buf, "NACK ")) + if (starts_with(buf, "NACK ")) die(_("git archive: NACK %s"), buf + 5); - if (!prefixcmp(buf, "ERR ")) + if (starts_with(buf, "ERR ")) die(_("remote error: %s"), buf + 4); die(_("git archive: protocol error")); } diff --git a/builtin/blame.c b/builtin/blame.c index 9047b6ef4c..3838be2b02 100644 --- a/builtin/blame.c +++ b/builtin/blame.c @@ -1,7 +1,8 @@ /* * Blame * - * Copyright (c) 2006, Junio C Hamano + * Copyright (c) 2006, 2014 by its authors + * See COPYING for licensing conditions */ #include "cache.h" @@ -18,7 +19,9 @@ #include "cache-tree.h" #include "string-list.h" #include "mailmap.h" +#include "mergesort.h" #include "parse-options.h" +#include "prio-queue.h" #include "utf8.h" #include "userdiff.h" #include "line-range.h" @@ -74,7 +77,7 @@ static unsigned blame_copy_score; #define BLAME_DEFAULT_MOVE_SCORE 20 #define BLAME_DEFAULT_COPY_SCORE 40 -/* bits #0..7 in revision.h, #8..11 used for merge_bases() in commit.c */ +/* Remember to update object flag allocation in object.h */ #define METAINFO_SHOWN (1u<<12) #define MORE_THAN_ONE_PATH (1u<<13) @@ -83,11 +86,42 @@ static unsigned blame_copy_score; */ struct origin { int refcnt; + /* Record preceding blame record for this blob */ struct origin *previous; + /* origins are put in a list linked via `next' hanging off the + * corresponding commit's util field in order to make finding + * them fast. The presence in this chain does not count + * towards the origin's reference count. It is tempting to + * let it count as long as the commit is pending examination, + * but even under circumstances where the commit will be + * present multiple times in the priority queue of unexamined + * commits, processing the first instance will not leave any + * work requiring the origin data for the second instance. An + * interspersed commit changing that would have to be + * preexisting with a different ancestry and with the same + * commit date in order to wedge itself between two instances + * of the same commit in the priority queue _and_ produce + * blame entries relevant for it. While we don't want to let + * us get tripped up by this case, it certainly does not seem + * worth optimizing for. + */ + struct origin *next; struct commit *commit; + /* `suspects' contains blame entries that may be attributed to + * this origin's commit or to parent commits. When a commit + * is being processed, all suspects will be moved, either by + * assigning them to an origin in a different commit, or by + * shipping them to the scoreboard's ent list because they + * cannot be attributed to a different commit. + */ + struct blame_entry *suspects; mmfile_t file; unsigned char blob_sha1[20]; unsigned mode; + /* guilty gets set when shipping any suspects to the final + * blame list instead of other commits + */ + char guilty; char path[FLEX_ARRAY]; }; @@ -176,10 +210,22 @@ static inline struct origin *origin_incref(struct origin *o) static void origin_decref(struct origin *o) { if (o && --o->refcnt <= 0) { + struct origin *p, *l = NULL; if (o->previous) origin_decref(o->previous); free(o->file.ptr); - free(o); + /* Should be present exactly once in commit chain */ + for (p = o->commit->util; p; l = p, p = p->next) { + if (p == o) { + if (l) + l->next = p->next; + else + o->commit->util = p->next; + free(o); + return; + } + } + die("internal error in blame::origin_decref"); } } @@ -193,11 +239,14 @@ static void drop_origin_blob(struct origin *o) /* * Each group of lines is described by a blame_entry; it can be split - * as we pass blame to the parents. They form a linked list in the - * scoreboard structure, sorted by the target line number. + * as we pass blame to the parents. They are arranged in linked lists + * kept as `suspects' of some unprocessed origin, or entered (when the + * blame origin has been finalized) into the scoreboard structure. + * While the scoreboard structure is only sorted at the end of + * processing (according to final image line number), the lists + * attached to an origin are sorted by the target line number. */ struct blame_entry { - struct blame_entry *prev; struct blame_entry *next; /* the first line of this group in the final image; @@ -211,15 +260,6 @@ struct blame_entry { /* the commit that introduced this group into the final image */ struct origin *suspect; - /* true if the suspect is truly guilty; false while we have not - * checked if the group came from one of its parents. - */ - char guilty; - - /* true if the entry has been scanned for copies in the current parent - */ - char scanned; - /* the line number of the first line of this group in the * suspect's file; internally all line numbers are 0 based. */ @@ -232,11 +272,112 @@ struct blame_entry { }; /* + * Any merge of blames happens on lists of blames that arrived via + * different parents in a single suspect. In this case, we want to + * sort according to the suspect line numbers as opposed to the final + * image line numbers. The function body is somewhat longish because + * it avoids unnecessary writes. + */ + +static struct blame_entry *blame_merge(struct blame_entry *list1, + struct blame_entry *list2) +{ + struct blame_entry *p1 = list1, *p2 = list2, + **tail = &list1; + + if (!p1) + return p2; + if (!p2) + return p1; + + if (p1->s_lno <= p2->s_lno) { + do { + tail = &p1->next; + if ((p1 = *tail) == NULL) { + *tail = p2; + return list1; + } + } while (p1->s_lno <= p2->s_lno); + } + for (;;) { + *tail = p2; + do { + tail = &p2->next; + if ((p2 = *tail) == NULL) { + *tail = p1; + return list1; + } + } while (p1->s_lno > p2->s_lno); + *tail = p1; + do { + tail = &p1->next; + if ((p1 = *tail) == NULL) { + *tail = p2; + return list1; + } + } while (p1->s_lno <= p2->s_lno); + } +} + +static void *get_next_blame(const void *p) +{ + return ((struct blame_entry *)p)->next; +} + +static void set_next_blame(void *p1, void *p2) +{ + ((struct blame_entry *)p1)->next = p2; +} + +/* + * Final image line numbers are all different, so we don't need a + * three-way comparison here. + */ + +static int compare_blame_final(const void *p1, const void *p2) +{ + return ((struct blame_entry *)p1)->lno > ((struct blame_entry *)p2)->lno + ? 1 : -1; +} + +static int compare_blame_suspect(const void *p1, const void *p2) +{ + const struct blame_entry *s1 = p1, *s2 = p2; + /* + * to allow for collating suspects, we sort according to the + * respective pointer value as the primary sorting criterion. + * The actual relation is pretty unimportant as long as it + * establishes a total order. Comparing as integers gives us + * that. + */ + if (s1->suspect != s2->suspect) + return (intptr_t)s1->suspect > (intptr_t)s2->suspect ? 1 : -1; + if (s1->s_lno == s2->s_lno) + return 0; + return s1->s_lno > s2->s_lno ? 1 : -1; +} + +static struct blame_entry *blame_sort(struct blame_entry *head, + int (*compare_fn)(const void *, const void *)) +{ + return llist_mergesort (head, get_next_blame, set_next_blame, compare_fn); +} + +static int compare_commits_by_reverse_commit_date(const void *a, + const void *b, + void *c) +{ + return -compare_commits_by_commit_date(a, b, c); +} + +/* * The current state of the blame assignment. */ struct scoreboard { /* the final commit (i.e. where we started digging from) */ struct commit *final; + /* Priority queue for commits with unassigned blame records */ + struct prio_queue commits; struct rev_info *revs; const char *path; @@ -256,15 +397,6 @@ struct scoreboard { int *lineno; }; -static inline int same_suspect(struct origin *a, struct origin *b) -{ - if (a == b) - return 1; - if (a->commit != b->commit) - return 0; - return !strcmp(a->path, b->path); -} - static void sanity_check_refcnt(struct scoreboard *); /* @@ -277,13 +409,10 @@ static void coalesce(struct scoreboard *sb) struct blame_entry *ent, *next; for (ent = sb->ent; ent && (next = ent->next); ent = next) { - if (same_suspect(ent->suspect, next->suspect) && - ent->guilty == next->guilty && + if (ent->suspect == next->suspect && ent->s_lno + ent->num_lines == next->s_lno) { ent->num_lines += next->num_lines; ent->next = next->next; - if (ent->next) - ent->next->prev = ent; origin_decref(next->suspect); free(next); ent->score = 0; @@ -296,6 +425,30 @@ static void coalesce(struct scoreboard *sb) } /* + * Merge the given sorted list of blames into a preexisting origin. + * If there were no previous blames to that commit, it is entered into + * the commit priority queue of the score board. + */ + +static void queue_blames(struct scoreboard *sb, struct origin *porigin, + struct blame_entry *sorted) +{ + if (porigin->suspects) + porigin->suspects = blame_merge(porigin->suspects, sorted); + else { + struct origin *o; + for (o = porigin->commit->util; o; o = o->next) { + if (o->suspects) { + porigin->suspects = sorted; + return; + } + } + porigin->suspects = sorted; + prio_queue_put(&sb->commits, porigin->commit); + } +} + +/* * Given a commit and a path in it, create a new origin structure. * The callers that add blame to the scoreboard should use * get_origin() to obtain shared, refcounted copy instead of calling @@ -307,23 +460,32 @@ static struct origin *make_origin(struct commit *commit, const char *path) 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 blame_entry *e; + struct origin *o, *l; - for (e = sb->ent; e; e = e->next) { - if (e->suspect->commit == commit && - !strcmp(e->suspect->path, path)) - return origin_incref(e->suspect); + for (o = commit->util, l = NULL; o; l = o, o = o->next) { + if (!strcmp(o->path, path)) { + /* bump to front */ + if (l) { + l->next = o->next; + o->next = commit->util; + commit->util = o; + } + return origin_incref(o); + } } return make_origin(commit, path); } @@ -362,41 +524,19 @@ static struct origin *find_origin(struct scoreboard *sb, struct commit *parent, struct origin *origin) { - struct origin *porigin = NULL; + struct origin *porigin; struct diff_options diff_opts; const char *paths[2]; - if (parent->util) { - /* - * Each commit object can cache one origin in that - * commit. This is a freestanding copy of origin and - * not refcounted. - */ - struct origin *cached = parent->util; - if (!strcmp(cached->path, origin->path)) { + /* First check any existing origins */ + for (porigin = parent->util; porigin; porigin = porigin->next) + if (!strcmp(porigin->path, origin->path)) { /* * The same path between origin and its parent * without renaming -- the most common case. */ - porigin = get_origin(sb, parent, cached->path); - - /* - * If the origin was newly created (i.e. get_origin - * would call make_origin if none is found in the - * scoreboard), it does not know the blob_sha1/mode, - * so copy it. Otherwise porigin was in the - * scoreboard and already knows blob_sha1/mode. - */ - if (porigin->refcnt == 1) { - hashcpy(porigin->blob_sha1, cached->blob_sha1); - porigin->mode = cached->mode; - } - return porigin; + return origin_incref (porigin); } - /* otherwise it was not very useful; free it */ - free(parent->util); - parent->util = NULL; - } /* See if the origin->path is different between parent * and origin first. Most of the time they are the @@ -462,19 +602,6 @@ static struct origin *find_origin(struct scoreboard *sb, } diff_flush(&diff_opts); free_pathspec(&diff_opts.pathspec); - if (porigin) { - /* - * Create a freestanding copy that is not part of - * the refcounted origin found in the scoreboard, and - * cache it in the commit. - */ - struct origin *cached; - - cached = make_origin(porigin->commit, porigin->path); - hashcpy(cached->blob_sha1, porigin->blob_sha1); - cached->mode = porigin->mode; - parent->util = cached; - } return porigin; } @@ -521,50 +648,31 @@ static struct origin *find_rename(struct scoreboard *sb, } /* - * Link in a new blame entry to the scoreboard. Entries that cover the - * same line range have been removed from the scoreboard previously. + * Append a new blame entry to a given output queue. */ -static void add_blame_entry(struct scoreboard *sb, struct blame_entry *e) +static void add_blame_entry(struct blame_entry ***queue, struct blame_entry *e) { - struct blame_entry *ent, *prev = NULL; - origin_incref(e->suspect); - for (ent = sb->ent; ent && ent->lno < e->lno; ent = ent->next) - prev = ent; - - /* prev, if not NULL, is the last one that is below e */ - e->prev = prev; - if (prev) { - e->next = prev->next; - prev->next = e; - } - else { - e->next = sb->ent; - sb->ent = e; - } - if (e->next) - e->next->prev = e; + e->next = **queue; + **queue = e; + *queue = &e->next; } /* * src typically is on-stack; we want to copy the information in it to - * a malloced blame_entry that is already on the linked list of the - * scoreboard. The origin of dst loses a refcnt while the origin of src - * gains one. + * a malloced blame_entry that gets added to the given queue. The + * origin of dst loses a refcnt. */ -static void dup_entry(struct blame_entry *dst, struct blame_entry *src) +static void dup_entry(struct blame_entry ***queue, + struct blame_entry *dst, struct blame_entry *src) { - struct blame_entry *p, *n; - - p = dst->prev; - n = dst->next; origin_incref(src->suspect); origin_decref(dst->suspect); memcpy(dst, src, sizeof(*src)); - dst->prev = p; - dst->next = n; - dst->score = 0; + dst->next = **queue; + **queue = dst; + *queue = &dst->next; } static const char *nth_line(struct scoreboard *sb, long lno) @@ -636,10 +744,11 @@ static void split_overlap(struct blame_entry *split, /* * split_overlap() divided an existing blame e into up to three parts - * in split. Adjust the linked list of blames in the scoreboard to + * in split. Any assigned blame is moved to queue to * reflect the split. */ -static void split_blame(struct scoreboard *sb, +static void split_blame(struct blame_entry ***blamed, + struct blame_entry ***unblamed, struct blame_entry *split, struct blame_entry *e) { @@ -647,61 +756,39 @@ static void split_blame(struct scoreboard *sb, if (split[0].suspect && split[2].suspect) { /* The first part (reuse storage for the existing entry e) */ - dup_entry(e, &split[0]); + dup_entry(unblamed, e, &split[0]); /* The last part -- me */ new_entry = xmalloc(sizeof(*new_entry)); memcpy(new_entry, &(split[2]), sizeof(struct blame_entry)); - add_blame_entry(sb, new_entry); + add_blame_entry(unblamed, new_entry); /* ... and the middle part -- parent */ new_entry = xmalloc(sizeof(*new_entry)); memcpy(new_entry, &(split[1]), sizeof(struct blame_entry)); - add_blame_entry(sb, new_entry); + add_blame_entry(blamed, new_entry); } else if (!split[0].suspect && !split[2].suspect) /* * The parent covers the entire area; reuse storage for * e and replace it with the parent. */ - dup_entry(e, &split[1]); + dup_entry(blamed, e, &split[1]); else if (split[0].suspect) { /* me and then parent */ - dup_entry(e, &split[0]); + dup_entry(unblamed, e, &split[0]); new_entry = xmalloc(sizeof(*new_entry)); memcpy(new_entry, &(split[1]), sizeof(struct blame_entry)); - add_blame_entry(sb, new_entry); + add_blame_entry(blamed, new_entry); } else { /* parent and then me */ - dup_entry(e, &split[1]); + dup_entry(blamed, e, &split[1]); new_entry = xmalloc(sizeof(*new_entry)); memcpy(new_entry, &(split[2]), sizeof(struct blame_entry)); - add_blame_entry(sb, new_entry); - } - - if (DEBUG) { /* sanity */ - struct blame_entry *ent; - int lno = sb->ent->lno, corrupt = 0; - - for (ent = sb->ent; ent; ent = ent->next) { - if (lno != ent->lno) - corrupt = 1; - if (ent->s_lno < 0) - corrupt = 1; - lno += ent->num_lines; - } - if (corrupt) { - lno = sb->ent->lno; - for (ent = sb->ent; ent; ent = ent->next) { - printf("L %8d l %8d n %8d\n", - lno, ent->lno, ent->num_lines); - lno = ent->lno + ent->num_lines; - } - die("oops"); - } + add_blame_entry(unblamed, new_entry); } } @@ -718,74 +805,146 @@ static void decref_split(struct blame_entry *split) } /* - * Helper for blame_chunk(). blame_entry e is known to overlap with - * the patch hunk; split it and pass blame to the parent. + * reverse_blame reverses the list given in head, appending tail. + * That allows us to build lists in reverse order, then reverse them + * afterwards. This can be faster than building the list in proper + * order right away. The reason is that building in proper order + * requires writing a link in the _previous_ element, while building + * in reverse order just requires placing the list head into the + * _current_ element. */ -static void blame_overlap(struct scoreboard *sb, struct blame_entry *e, - int tlno, int plno, int same, - struct origin *parent) -{ - struct blame_entry split[3]; - split_overlap(split, e, tlno, plno, same, parent); - if (split[1].suspect) - split_blame(sb, split, e); - decref_split(split); -} - -/* - * Find the line number of the last line the target is suspected for. - */ -static int find_last_in_target(struct scoreboard *sb, struct origin *target) +static struct blame_entry *reverse_blame(struct blame_entry *head, + struct blame_entry *tail) { - struct blame_entry *e; - int last_in_target = -1; - - for (e = sb->ent; e; e = e->next) { - if (e->guilty || !same_suspect(e->suspect, target)) - continue; - if (last_in_target < e->s_lno + e->num_lines) - last_in_target = e->s_lno + e->num_lines; + while (head) { + struct blame_entry *next = head->next; + head->next = tail; + tail = head; + head = next; } - return last_in_target; + return tail; } /* * Process one hunk from the patch between the current suspect for - * blame_entry e and its parent. Find and split the overlap, and - * pass blame to the overlapping part to the parent. + * blame_entry e and its parent. This first blames any unfinished + * entries before the chunk (which is where target and parent start + * differing) on the parent, and then splits blame entries at the + * start and at the end of the difference region. Since use of -M and + * -C options may lead to overlapping/duplicate source line number + * ranges, all we can rely on from sorting/merging is the order of the + * first suspect line number. */ -static void blame_chunk(struct scoreboard *sb, - int tlno, int plno, int same, - struct origin *target, struct origin *parent) +static void blame_chunk(struct blame_entry ***dstq, struct blame_entry ***srcq, + int tlno, int offset, int same, + struct origin *parent) { - struct blame_entry *e; + struct blame_entry *e = **srcq; + struct blame_entry *samep = NULL, *diffp = NULL; - for (e = sb->ent; e; e = e->next) { - if (e->guilty || !same_suspect(e->suspect, target)) - continue; - if (same <= e->s_lno) - continue; - if (tlno < e->s_lno + e->num_lines) - blame_overlap(sb, e, tlno, plno, same, parent); + while (e && e->s_lno < tlno) { + struct blame_entry *next = e->next; + /* + * current record starts before differing portion. If + * it reaches into it, we need to split it up and + * examine the second part separately. + */ + if (e->s_lno + e->num_lines > tlno) { + /* Move second half to a new record */ + int len = tlno - e->s_lno; + struct blame_entry *n = xcalloc(1, sizeof (struct blame_entry)); + n->suspect = e->suspect; + n->lno = e->lno + len; + n->s_lno = e->s_lno + len; + n->num_lines = e->num_lines - len; + e->num_lines = len; + e->score = 0; + /* Push new record to diffp */ + n->next = diffp; + diffp = n; + } else + origin_decref(e->suspect); + /* Pass blame for everything before the differing + * chunk to the parent */ + e->suspect = origin_incref(parent); + e->s_lno += offset; + e->next = samep; + samep = e; + e = next; } + /* + * As we don't know how much of a common stretch after this + * diff will occur, the currently blamed parts are all that we + * can assign to the parent for now. + */ + + if (samep) { + **dstq = reverse_blame(samep, **dstq); + *dstq = &samep->next; + } + /* + * Prepend the split off portions: everything after e starts + * after the blameable portion. + */ + e = reverse_blame(diffp, e); + + /* + * Now retain records on the target while parts are different + * from the parent. + */ + samep = NULL; + diffp = NULL; + while (e && e->s_lno < same) { + struct blame_entry *next = e->next; + + /* + * If current record extends into sameness, need to split. + */ + if (e->s_lno + e->num_lines > same) { + /* + * Move second half to a new record to be + * processed by later chunks + */ + int len = same - e->s_lno; + struct blame_entry *n = xcalloc(1, sizeof (struct blame_entry)); + n->suspect = origin_incref(e->suspect); + n->lno = e->lno + len; + n->s_lno = e->s_lno + len; + n->num_lines = e->num_lines - len; + e->num_lines = len; + e->score = 0; + /* Push new record to samep */ + n->next = samep; + samep = n; + } + e->next = diffp; + diffp = e; + e = next; + } + **srcq = reverse_blame(diffp, reverse_blame(samep, e)); + /* Move across elements that are in the unblamable portion */ + if (diffp) + *srcq = &diffp->next; } struct blame_chunk_cb_data { - struct scoreboard *sb; - struct origin *target; struct origin *parent; - long plno; - long tlno; + long offset; + struct blame_entry **dstq; + struct blame_entry **srcq; }; +/* diff chunks are from parent to target */ static int blame_chunk_cb(long start_a, long count_a, long start_b, long count_b, void *data) { struct blame_chunk_cb_data *d = data; - blame_chunk(d->sb, d->tlno, d->plno, start_b, d->target, d->parent); - d->plno = start_a + count_a; - d->tlno = start_b + count_b; + 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; } @@ -794,29 +953,32 @@ static int blame_chunk_cb(long start_a, long count_a, * for the lines it is suspected to its parent. Run diff to find * which lines came from parent and pass blame for them. */ -static int pass_blame_to_parent(struct scoreboard *sb, - struct origin *target, - struct origin *parent) +static void pass_blame_to_parent(struct scoreboard *sb, + struct origin *target, + struct origin *parent) { - int last_in_target; mmfile_t file_p, file_o; struct blame_chunk_cb_data d; + struct blame_entry *newdest = NULL; - memset(&d, 0, sizeof(d)); - d.sb = sb; d.target = target; d.parent = parent; - last_in_target = find_last_in_target(sb, target); - if (last_in_target < 0) - return 1; /* nothing remains for this target */ + 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++; diff_hunks(&file_p, &file_o, 0, blame_chunk_cb, &d); - /* The rest (i.e. anything after tlno) are the same as the parent */ - blame_chunk(sb, d.tlno, d.plno, last_in_target, target, parent); + /* The rest are the same as the parent */ + blame_chunk(&d.dstq, &d.srcq, INT_MAX, d.offset, INT_MAX, parent); + *d.dstq = NULL; + queue_blames(sb, parent, newdest); - return 0; + return; } /* @@ -939,7 +1101,6 @@ static void find_copy_in_blob(struct scoreboard *sb, mmfile_t *file_p) { const char *cp; - int cnt; mmfile_t file_o; struct handle_split_cb_data d; @@ -950,13 +1111,7 @@ static void find_copy_in_blob(struct scoreboard *sb, */ cp = nth_line(sb, ent->lno); file_o.ptr = (char *) cp; - cnt = ent->num_lines; - - while (cnt && cp < sb->final_buf + sb->final_buf_size) { - if (*cp++ == '\n') - cnt--; - } - file_o.size = cp - file_o.ptr; + file_o.size = nth_line(sb, ent->lno + ent->num_lines) - cp; /* * file_o is a part of final image we are annotating. @@ -968,43 +1123,80 @@ static void find_copy_in_blob(struct scoreboard *sb, handle_split(sb, ent, d.tlno, d.plno, ent->num_lines, parent, split); } +/* Move all blame entries from list *source that have a score smaller + * than score_min to the front of list *small. + * Returns a pointer to the link pointing to the old head of the small list. + */ + +static struct blame_entry **filter_small(struct scoreboard *sb, + struct blame_entry **small, + struct blame_entry **source, + unsigned score_min) +{ + struct blame_entry *p = *source; + struct blame_entry *oldsmall = *small; + while (p) { + if (ent_score(sb, p) <= score_min) { + *small = p; + small = &p->next; + p = *small; + } else { + *source = p; + source = &p->next; + p = *source; + } + } + *small = oldsmall; + *source = NULL; + return small; +} + /* * See if lines currently target is suspected for can be attributed to * parent. */ -static int find_move_in_parent(struct scoreboard *sb, - struct origin *target, - struct origin *parent) +static void find_move_in_parent(struct scoreboard *sb, + struct blame_entry ***blamed, + struct blame_entry **toosmall, + struct origin *target, + struct origin *parent) { - int last_in_target, made_progress; struct blame_entry *e, split[3]; + struct blame_entry *unblamed = target->suspects; + struct blame_entry *leftover = NULL; mmfile_t file_p; - last_in_target = find_last_in_target(sb, target); - if (last_in_target < 0) - return 1; /* nothing remains for this target */ + if (!unblamed) + return; /* nothing remains for this target */ fill_origin_blob(&sb->revs->diffopt, parent, &file_p); if (!file_p.ptr) - return 0; + return; - made_progress = 1; - while (made_progress) { - made_progress = 0; - for (e = sb->ent; e; e = e->next) { - if (e->guilty || !same_suspect(e->suspect, target) || - ent_score(sb, e) < blame_move_score) - continue; + /* At each iteration, unblamed has a NULL-terminated list of + * entries that have not yet been tested for blame. leftover + * contains the reversed list of entries that have been tested + * without being assignable to the parent. + */ + do { + struct blame_entry **unblamedtail = &unblamed; + struct blame_entry *next; + for (e = unblamed; e; e = next) { + next = e->next; find_copy_in_blob(sb, e, parent, split, &file_p); if (split[1].suspect && blame_move_score < ent_score(sb, &split[1])) { - split_blame(sb, split, e); - made_progress = 1; + split_blame(blamed, &unblamedtail, split, e); + } else { + e->next = leftover; + leftover = e; } decref_split(split); } - } - return 0; + *unblamedtail = NULL; + toosmall = filter_small(sb, toosmall, &unblamed, blame_move_score); + } while (unblamed); + target->suspects = reverse_blame(leftover, NULL); } struct blame_list { @@ -1016,62 +1208,46 @@ struct blame_list { * Count the number of entries the target is suspected for, * and prepare a list of entry and the best split. */ -static struct blame_list *setup_blame_list(struct scoreboard *sb, - struct origin *target, - int min_score, +static struct blame_list *setup_blame_list(struct blame_entry *unblamed, int *num_ents_p) { struct blame_entry *e; int num_ents, i; struct blame_list *blame_list = NULL; - for (e = sb->ent, num_ents = 0; e; e = e->next) - if (!e->scanned && !e->guilty && - same_suspect(e->suspect, target) && - min_score < ent_score(sb, e)) - num_ents++; + for (e = unblamed, num_ents = 0; e; e = e->next) + num_ents++; if (num_ents) { blame_list = xcalloc(num_ents, sizeof(struct blame_list)); - for (e = sb->ent, i = 0; e; e = e->next) - if (!e->scanned && !e->guilty && - same_suspect(e->suspect, target) && - min_score < ent_score(sb, e)) - blame_list[i++].ent = e; + for (e = unblamed, i = 0; e; e = e->next) + blame_list[i++].ent = e; } *num_ents_p = num_ents; return blame_list; } /* - * Reset the scanned status on all entries. - */ -static void reset_scanned_flag(struct scoreboard *sb) -{ - struct blame_entry *e; - for (e = sb->ent; e; e = e->next) - e->scanned = 0; -} - -/* * For lines target is suspected for, see if we can find code movement * across file boundary from the parent commit. porigin is the path * in the parent we already tried. */ -static int find_copy_in_parent(struct scoreboard *sb, - struct origin *target, - struct commit *parent, - struct origin *porigin, - int opt) +static void find_copy_in_parent(struct scoreboard *sb, + struct blame_entry ***blamed, + struct blame_entry **toosmall, + struct origin *target, + struct commit *parent, + struct origin *porigin, + int opt) { struct diff_options diff_opts; int i, j; - int retval; struct blame_list *blame_list; int num_ents; + struct blame_entry *unblamed = target->suspects; + struct blame_entry *leftover = NULL; - blame_list = setup_blame_list(sb, target, blame_copy_score, &num_ents); - if (!blame_list) - return 1; /* nothing remains for this target */ + if (!unblamed) + return; /* nothing remains for this target */ diff_setup(&diff_opts); DIFF_OPT_SET(&diff_opts, RECURSIVE); @@ -1101,9 +1277,9 @@ static int find_copy_in_parent(struct scoreboard *sb, if (!DIFF_OPT_TST(&diff_opts, FIND_COPIES_HARDER)) diffcore_std(&diff_opts); - retval = 0; - while (1) { - int made_progress = 0; + do { + struct blame_entry **unblamedtail = &unblamed; + blame_list = setup_blame_list(unblamed, &num_ents); for (i = 0; i < diff_queued_diff.nr; i++) { struct diff_filepair *p = diff_queued_diff.queue[i]; @@ -1140,27 +1316,21 @@ static int find_copy_in_parent(struct scoreboard *sb, struct blame_entry *split = blame_list[j].split; if (split[1].suspect && blame_copy_score < ent_score(sb, &split[1])) { - split_blame(sb, split, blame_list[j].ent); - made_progress = 1; + split_blame(blamed, &unblamedtail, split, + blame_list[j].ent); + } else { + blame_list[j].ent->next = leftover; + leftover = blame_list[j].ent; } - else - blame_list[j].ent->scanned = 1; decref_split(split); } free(blame_list); - - if (!made_progress) - break; - blame_list = setup_blame_list(sb, target, blame_copy_score, &num_ents); - if (!blame_list) { - retval = 1; - break; - } - } - reset_scanned_flag(sb); + *unblamedtail = NULL; + toosmall = filter_small(sb, toosmall, &unblamed, blame_copy_score); + } while (unblamed); + target->suspects = reverse_blame(leftover, NULL); diff_flush(&diff_opts); free_pathspec(&diff_opts.pathspec); - return retval; } /* @@ -1170,20 +1340,21 @@ static int find_copy_in_parent(struct scoreboard *sb, static void pass_whole_blame(struct scoreboard *sb, struct origin *origin, struct origin *porigin) { - struct blame_entry *e; + struct blame_entry *e, *suspects; if (!porigin->file.ptr && origin->file.ptr) { /* Steal its file */ porigin->file = origin->file; origin->file.ptr = NULL; } - for (e = sb->ent; e; e = e->next) { - if (!same_suspect(e->suspect, origin)) - continue; + suspects = origin->suspects; + origin->suspects = NULL; + for (e = suspects; e; e = e->next) { origin_incref(porigin); origin_decref(e->suspect); e->suspect = porigin; } + queue_blames(sb, porigin, suspects); } /* @@ -1200,11 +1371,29 @@ static struct commit_list *first_scapegoat(struct rev_info *revs, struct commit static int num_scapegoats(struct rev_info *revs, struct commit *commit) { - int cnt; struct commit_list *l = first_scapegoat(revs, commit); - for (cnt = 0; l; l = l->next) - cnt++; - return cnt; + return commit_list_count(l); +} + +/* Distribute collected unsorted blames to the respected sorted lists + * in the various origins. + */ +static void distribute_blame(struct scoreboard *sb, struct blame_entry *blamed) +{ + blamed = blame_sort(blamed, compare_blame_suspect); + while (blamed) + { + struct origin *porigin = blamed->suspect; + struct blame_entry *suspects = NULL; + do { + struct blame_entry *next = blamed->next; + blamed->next = suspects; + suspects = blamed; + blamed = next; + } while (blamed && blamed->suspect == porigin); + suspects = reverse_blame(suspects, NULL); + queue_blames(sb, porigin, suspects); + } } #define MAXSG 16 @@ -1217,6 +1406,8 @@ static void pass_blame(struct scoreboard *sb, struct origin *origin, int opt) struct commit_list *sg; struct origin *sg_buf[MAXSG]; struct origin *porigin, **sg_origin = sg_buf; + struct blame_entry *toosmall = NULL; + struct blame_entry *blames, **blametail = &blames; num_sg = num_scapegoats(revs, commit); if (!num_sg) @@ -1278,38 +1469,71 @@ static void pass_blame(struct scoreboard *sb, struct origin *origin, int opt) origin_incref(porigin); origin->previous = porigin; } - if (pass_blame_to_parent(sb, origin, porigin)) + pass_blame_to_parent(sb, origin, porigin); + if (!origin->suspects) goto finish; } /* * Optionally find moves in parents' files. */ - if (opt & PICKAXE_BLAME_MOVE) - for (i = 0, sg = first_scapegoat(revs, commit); - i < num_sg && sg; - sg = sg->next, i++) { - struct origin *porigin = sg_origin[i]; - if (!porigin) - continue; - if (find_move_in_parent(sb, origin, porigin)) - goto finish; + if (opt & PICKAXE_BLAME_MOVE) { + filter_small(sb, &toosmall, &origin->suspects, blame_move_score); + if (origin->suspects) { + for (i = 0, sg = first_scapegoat(revs, commit); + i < num_sg && sg; + sg = sg->next, i++) { + struct origin *porigin = sg_origin[i]; + if (!porigin) + continue; + find_move_in_parent(sb, &blametail, &toosmall, origin, porigin); + if (!origin->suspects) + break; + } } + } /* * Optionally find copies from parents' files. */ - if (opt & PICKAXE_BLAME_COPY) + if (opt & PICKAXE_BLAME_COPY) { + if (blame_copy_score > blame_move_score) + filter_small(sb, &toosmall, &origin->suspects, blame_copy_score); + else if (blame_copy_score < blame_move_score) { + origin->suspects = blame_merge(origin->suspects, toosmall); + toosmall = NULL; + filter_small(sb, &toosmall, &origin->suspects, blame_copy_score); + } + if (!origin->suspects) + goto finish; + for (i = 0, sg = first_scapegoat(revs, commit); i < num_sg && sg; sg = sg->next, i++) { struct origin *porigin = sg_origin[i]; - if (find_copy_in_parent(sb, origin, sg->item, - porigin, opt)) + find_copy_in_parent(sb, &blametail, &toosmall, + origin, sg->item, porigin, opt); + if (!origin->suspects) goto finish; } + } - finish: +finish: + *blametail = NULL; + distribute_blame(sb, blames); + /* + * prepend toosmall to origin->suspects + * + * There is no point in sorting: this ends up on a big + * unsorted list in the caller anyway. + */ + if (toosmall) { + struct blame_entry **tail = &toosmall; + while (*tail) + tail = &(*tail)->next; + *tail = origin->suspects; + origin->suspects = toosmall; + } for (i = 0; i < num_sg; i++) { if (sg_origin[i]) { drop_origin_blob(sg_origin[i]); @@ -1428,7 +1652,7 @@ static void get_commit_info(struct commit *commit, { int len; const char *subject, *encoding; - char *message; + const char *message; commit_info_init(ret); @@ -1439,7 +1663,7 @@ static void get_commit_info(struct commit *commit, &ret->author_time, &ret->author_tz); if (!detailed) { - logmsg_free(message, commit); + unuse_commit_buffer(commit, message); return; } @@ -1453,7 +1677,7 @@ static void get_commit_info(struct commit *commit, else strbuf_addf(&ret->summary, "(%s)", sha1_to_hex(commit->object.sha1)); - logmsg_free(message, commit); + unuse_commit_buffer(commit, message); } /* @@ -1504,14 +1728,11 @@ static int emit_one_suspect_detail(struct origin *suspect, int repeat) } /* - * The blame_entry is found to be guilty for the range. Mark it - * as such, and show it in incremental output. + * The blame_entry is found to be guilty for the range. + * Show it in incremental output. */ static void found_guilty_entry(struct blame_entry *ent) { - if (ent->guilty) - return; - ent->guilty = 1; if (incremental) { struct origin *suspect = ent->suspect; @@ -1525,34 +1746,35 @@ static void found_guilty_entry(struct blame_entry *ent) } /* - * The main loop -- while the scoreboard has lines whose true origin - * is still unknown, pick one blame_entry, and allow its current - * suspect to pass blames to its parents. - */ + * The main loop -- while we have blobs with lines whose true origin + * is still unknown, pick one blob, and allow its lines to pass blames + * to its parents. */ static void assign_blame(struct scoreboard *sb, int opt) { struct rev_info *revs = sb->revs; + struct commit *commit = prio_queue_get(&sb->commits); - while (1) { + while (commit) { struct blame_entry *ent; - struct commit *commit; - struct origin *suspect = NULL; + struct origin *suspect = commit->util; /* find one suspect to break down */ - for (ent = sb->ent; !suspect && ent; ent = ent->next) - if (!ent->guilty) - suspect = ent->suspect; - if (!suspect) - return; /* all done */ + while (suspect && !suspect->suspects) + suspect = suspect->next; + + if (!suspect) { + commit = prio_queue_get(&sb->commits); + continue; + } + + assert(commit == suspect->commit); /* * We will use this suspect later in the loop, * so hold onto it in the meantime. */ origin_incref(suspect); - commit = suspect->commit; - if (!commit->object.parsed) - parse_commit(commit); + parse_commit(commit); if (reverse || (!(commit->object.flags & UNINTERESTING) && !(revs->max_age != -1 && commit->date < revs->max_age))) @@ -1567,9 +1789,22 @@ static void assign_blame(struct scoreboard *sb, int opt) commit->object.flags |= UNINTERESTING; /* Take responsibility for the remaining entries */ - for (ent = sb->ent; ent; ent = ent->next) - if (same_suspect(ent->suspect, suspect)) + 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 */ @@ -1580,22 +1815,29 @@ static void assign_blame(struct scoreboard *sb, int opt) static const char *format_time(unsigned long time, const char *tz_str, int show_raw_time) { - static char time_buf[128]; - const char *time_str; - int time_len; - int tz; + static struct strbuf time_buf = STRBUF_INIT; + strbuf_reset(&time_buf); if (show_raw_time) { - snprintf(time_buf, sizeof(time_buf), "%lu %s", time, tz_str); + strbuf_addf(&time_buf, "%lu %s", time, tz_str); } else { + const char *time_str; + size_t time_width; + int tz; tz = atoi(tz_str); time_str = show_date(time, tz, blame_date_mode); - time_len = strlen(time_str); - memcpy(time_buf, time_str, time_len); - memset(time_buf + time_len, ' ', blame_date_width - time_len); + strbuf_addstr(&time_buf, time_str); + /* + * Add space paddings to time_buf to display a fixed width + * string, and use time_width for display width calibration. + */ + for (time_width = utf8_strwidth(time_str); + time_width < blame_date_width; + time_width++) + strbuf_addch(&time_buf, ' '); } - return time_buf; + return time_buf.buf; } #define OUTPUT_ANNOTATE_COMPAT 001 @@ -1626,9 +1868,8 @@ static void emit_porcelain(struct scoreboard *sb, struct blame_entry *ent, char hex[41]; strcpy(hex, sha1_to_hex(suspect->commit->object.sha1)); - printf("%s%c%d %d %d\n", + printf("%s %d %d %d\n", hex, - ent->guilty ? ' ' : '*', /* purely for debugging */ ent->s_lno + 1, ent->lno + 1, ent->num_lines); @@ -1741,17 +1982,16 @@ static void output(struct scoreboard *sb, int option) if (option & OUTPUT_PORCELAIN) { for (ent = sb->ent; ent; ent = ent->next) { - struct blame_entry *oth; - struct origin *suspect = ent->suspect; - struct commit *commit = suspect->commit; + int count = 0; + struct origin *suspect; + struct commit *commit = ent->suspect->commit; if (commit->object.flags & MORE_THAN_ONE_PATH) continue; - for (oth = ent->next; oth; oth = oth->next) { - if ((oth->suspect->commit != commit) || - !strcmp(oth->suspect->path, suspect->path)) - continue; - commit->object.flags |= MORE_THAN_ONE_PATH; - break; + for (suspect = commit->util; suspect; suspect = suspect->next) { + if (suspect->guilty && count++) { + commit->object.flags |= MORE_THAN_ONE_PATH; + break; + } } } } @@ -1765,6 +2005,12 @@ static void output(struct scoreboard *sb, int option) } } +static const char *get_next_line(const char *start, const char *end) +{ + const char *nl = memchr(start, '\n', end - start); + return nl ? nl + 1 : end; +} + /* * To allow quick access to the contents of nth line in the * final image, prepare an index in the scoreboard. @@ -1773,26 +2019,22 @@ static int prepare_lines(struct scoreboard *sb) { const char *buf = sb->final_buf; unsigned long len = sb->final_buf_size; - int num = 0, incomplete = 0, bol = 1; - - if (len && buf[len-1] != '\n') - incomplete++; /* incomplete line at the end */ - while (len--) { - if (bol) { - sb->lineno = xrealloc(sb->lineno, - sizeof(int *) * (num + 1)); - sb->lineno[num] = buf - sb->final_buf; - bol = 0; - } - if (*buf++ == '\n') { - num++; - bol = 1; - } - } - sb->lineno = xrealloc(sb->lineno, - sizeof(int *) * (num + incomplete + 1)); - sb->lineno[num + incomplete] = buf - sb->final_buf; - sb->num_lines = num + incomplete; + const char *end = buf + len; + const char *p; + int *lineno; + int num = 0; + + for (p = buf; p < end; p = get_next_line(p, end)) + num++; + + 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; } @@ -2007,6 +2249,18 @@ static void append_merge_parents(struct commit_list **tail) } /* + * 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. */ @@ -2027,10 +2281,9 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt, struct strbuf msg = STRBUF_INIT; time(&now); - commit = xcalloc(1, sizeof(*commit)); + commit = alloc_commit_node(); commit->object.parsed = 1; commit->date = now; - commit->object.type = OBJ_COMMIT; parent_tail = &commit->parents; if (!resolve_ref_unsafe("HEAD", head_sha1, 1, NULL)) @@ -2054,7 +2307,7 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt, ident, ident, path, (!contents_from ? path : (!strcmp(contents_from, "-") ? "standard input" : contents_from))); - commit->buffer = strbuf_detach(&msg, NULL); + set_commit_buffer_from_strbuf(commit, &msg); if (!contents_from || strcmp("-", contents_from)) { struct stat st; @@ -2096,11 +2349,9 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt, 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); - commit->util = origin; /* * Read the current index, replace the path entry with @@ -2134,7 +2385,7 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt, * right now, but someday we might optimize diff-index --cached * with cache-tree information. */ - cache_tree_invalidate_path(active_cache_tree, path); + cache_tree_invalidate_path(&the_index, path); return commit; } @@ -2329,6 +2580,9 @@ parse_done: case DATE_RFC2822: blame_date_width = sizeof("Thu, 19 Oct 2006 16:00:04 -0700"); break; + case DATE_ISO8601_STRICT: + blame_date_width = sizeof("2006-10-19T16:00:04-07:00"); + break; case DATE_ISO8601: blame_date_width = sizeof("2006-10-19 16:00:04 -0700"); break; @@ -2339,7 +2593,14 @@ parse_done: blame_date_width = sizeof("2006-10-19"); break; case DATE_RELATIVE: - /* "normal" is used as the fallback for "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. */ + 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"); @@ -2411,12 +2672,16 @@ parse_done: memset(&sb, 0, sizeof(sb)); sb.revs = &revs; - if (!reverse) + if (!reverse) { final_commit_name = prepare_final(&sb); + sb.commits.compare = compare_commits_by_commit_date; + } else if (contents_from) die("--contents and --children do not blend well."); - else + else { final_commit_name = prepare_initial(&sb); + sb.commits.compare = compare_commits_by_reverse_commit_date; + } if (!sb.final) { /* @@ -2438,14 +2703,11 @@ parse_done: * uninteresting. */ if (prepare_revision_walk(&revs)) - die("revision walk setup failed"); + die(_("revision walk setup failed")); if (is_null_sha1(sb.final->object.sha1)) { - char *buf; o = sb.final->util; - buf = xmalloc(o->file.size + 1); - memcpy(buf, o->file.ptr, o->file.size + 1); - sb.final_buf = buf; + sb.final_buf = xmemdupz(o->file.ptr, o->file.size); sb.final_buf_size = o->file.size; } else { @@ -2503,16 +2765,18 @@ parse_done: ent->suspect = o; ent->s_lno = bottom; ent->next = next; - if (next) - next->prev = ent; origin_incref(o); } + + o->suspects = ent; + prio_queue_put(&sb.commits, o->commit); + origin_decref(o); range_set_release(&ranges); string_list_clear(&range_list, 0); - sb.ent = ent; + sb.ent = NULL; sb.path = path; read_mailmap(&mailmap, NULL); @@ -2525,6 +2789,8 @@ parse_done: if (incremental) return 0; + sb.ent = blame_sort(sb.ent, compare_blame_final); + coalesce(&sb); if (!(output_option & OUTPUT_PORCELAIN)) diff --git a/builtin/branch.c b/builtin/branch.c index f157f92f48..67850975e7 100644 --- a/builtin/branch.c +++ b/builtin/branch.c @@ -81,14 +81,16 @@ static int parse_branch_color_slot(const char *var, int ofs) static int git_branch_config(const char *var, const char *value, void *cb) { - if (!prefixcmp(var, "column.")) + const char *slot_name; + + if (starts_with(var, "column.")) return git_column_config(var, value, "branch", &colopts); if (!strcmp(var, "color.branch")) { branch_use_color = git_config_colorbool(var, value); return 0; } - if (!prefixcmp(var, "color.branch.")) { - int slot = parse_branch_color_slot(var, 13); + if (skip_prefix(var, "color.branch.", &slot_name)) { + int slot = parse_branch_color_slot(var, slot_name - var); if (slot < 0) return 0; if (!value) @@ -280,6 +282,7 @@ struct ref_item { char *dest; unsigned int kind, width; struct commit *commit; + int ignore; }; struct ref_list { @@ -294,13 +297,13 @@ static char *resolve_symref(const char *src, const char *prefix) { unsigned char sha1[20]; int flag; - const char *dst, *cp; + const char *dst; dst = resolve_ref_unsafe(src, sha1, 0, &flag); if (!(dst && (flag & REF_ISSYMREF))) return NULL; - if (prefix && (cp = skip_prefix(dst, prefix))) - dst = cp; + if (prefix) + skip_prefix(dst, prefix, &dst); return xstrdup(dst); } @@ -315,7 +318,7 @@ static int match_patterns(const char **pattern, const char *refname) if (!*pattern) return 1; /* no pattern always matches */ while (*pattern) { - if (!fnmatch(*pattern, refname, 0)) + if (!wildmatch(*pattern, refname, 0, NULL)) return 1; pattern++; } @@ -334,20 +337,18 @@ static int append_ref(const char *refname, const unsigned char *sha1, int flags, static struct { int kind; const char *prefix; - int pfxlen; } ref_kind[] = { - { REF_LOCAL_BRANCH, "refs/heads/", 11 }, - { REF_REMOTE_BRANCH, "refs/remotes/", 13 }, + { 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 (strncmp(refname, prefix, ref_kind[i].pfxlen)) - continue; - kind = ref_kind[i].kind; - refname += ref_kind[i].pfxlen; - break; + if (skip_prefix(refname, prefix, &refname)) { + kind = ref_kind[i].kind; + break; + } } if (ARRAY_SIZE(ref_kind) <= i) return 0; @@ -385,6 +386,7 @@ static int append_ref(const char *refname, const unsigned char *sha1, int flags, 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) @@ -484,17 +486,6 @@ static void fill_tracking_info(struct strbuf *stat, const char *branch_name, free(ref); } -static int matches_merge_filter(struct commit *commit) -{ - int is_merged; - - if (merge_filter == NO_FILTER) - return 1; - - is_merged = !!(commit->object.flags & UNINTERESTING); - return (is_merged == (merge_filter == SHOW_MERGED)); -} - static void add_verbose_info(struct strbuf *out, struct ref_item *item, int verbose, int abbrev) { @@ -502,7 +493,7 @@ static void add_verbose_info(struct strbuf *out, struct ref_item *item, const char *sub = _(" **** invalid ref ****"); struct commit *commit = item->commit; - if (commit && !parse_commit(commit)) { + if (!parse_commit(commit)) { pp_commit_easy(CMIT_FMT_ONELINE, commit, &subject); sub = subject.buf; } @@ -522,10 +513,9 @@ static void print_ref_item(struct ref_item *item, int maxwidth, int verbose, { char c; int color; - struct commit *commit = item->commit; struct strbuf out = STRBUF_INIT, name = STRBUF_INIT; - if (!matches_merge_filter(commit)) + if (item->ignore) return; switch (item->kind) { @@ -575,7 +565,7 @@ static int calc_maxwidth(struct ref_list *refs) { int i, w = 0; for (i = 0; i < refs->index; i++) { - if (!matches_merge_filter(refs->list[i].commit)) + if (refs->list[i].ignore) continue; if (refs->list[i].width > w) w = refs->list[i].width; @@ -618,6 +608,7 @@ static void show_detached(struct ref_list *ref_list) 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, ""); @@ -653,7 +644,23 @@ static int print_ref_list(int kinds, int detached, int verbose, int abbrev, stru add_pending_object(&ref_list.revs, (struct object *) filter, ""); ref_list.revs.limited = 1; - prepare_revision_walk(&ref_list.revs); + + 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); } @@ -865,13 +872,10 @@ int cmd_branch(int argc, const char **argv, const char *prefix) head = resolve_refdup("HEAD", head_sha1, 0, NULL); if (!head) die(_("Failed to resolve HEAD as a valid ref.")); - if (!strcmp(head, "HEAD")) { + if (!strcmp(head, "HEAD")) detached = 1; - } else { - if (prefixcmp(head, "refs/heads/")) - die(_("HEAD not found below refs/heads!")); - head += 11; - } + else if (!skip_prefix(head, "refs/heads/", &head)) + die(_("HEAD not found below refs/heads!")); hashcpy(merge_filter_ref, head_sha1); diff --git a/builtin/cat-file.c b/builtin/cat-file.c index f8288c830c..f8d81291b9 100644 --- a/builtin/cat-file.c +++ b/builtin/cat-file.c @@ -82,8 +82,9 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name) enum object_type type; unsigned long size; char *buffer = read_sha1_file(sha1, &type, &size); - if (memcmp(buffer, "object ", 7) || - get_sha1_hex(buffer + 7, blob_sha1)) + const char *target; + if (!skip_prefix(buffer, "object ", &target) || + get_sha1_hex(target, blob_sha1)) die("%s not a valid tag", sha1_to_hex(sha1)); free(buffer); } else @@ -118,6 +119,7 @@ struct expand_data { unsigned long size; unsigned long disk_size; const char *rest; + unsigned char delta_base_sha1[20]; /* * If mark_query is true, we do not expand anything, but rather @@ -174,6 +176,11 @@ static void expand_atom(struct strbuf *sb, const char *atom, int len, data->split_on_whitespace = 1; else if (data->rest) strbuf_addstr(sb, data->rest); + } else if (is_atom("deltabase", atom, len)) { + if (data->mark_query) + data->info.delta_base_sha1 = data->delta_base_sha1; + else + strbuf_addstr(sb, sha1_to_hex(data->delta_base_sha1)); } else die("unknown format element: %.*s", len, atom); } @@ -241,7 +248,7 @@ static int batch_one_object(const char *obj_name, struct batch_options *opt, return 0; } - if (sha1_object_info_extended(data->sha1, &data->info) < 0) { + if (sha1_object_info_extended(data->sha1, &data->info, LOOKUP_REPLACE_OBJECT) < 0) { printf("%s missing\n", obj_name); fflush(stdout); return 0; @@ -263,6 +270,8 @@ static int batch_objects(struct batch_options *opt) { struct strbuf buf = STRBUF_INIT; struct expand_data data; + int save_warning; + int retval = 0; if (!opt->format) opt->format = "%(objectname) %(objecttype) %(objectsize)"; @@ -291,11 +300,10 @@ static int batch_objects(struct batch_options *opt) * warn) ends up dwarfing the actual cost of the object lookups * themselves. We can work around it by just turning off the warning. */ + save_warning = warn_on_object_refname_ambiguity; warn_on_object_refname_ambiguity = 0; while (strbuf_getline(&buf, stdin, '\n') != EOF) { - int error; - if (data.split_on_whitespace) { /* * Split at first whitespace, tying off the beginning @@ -310,12 +318,14 @@ static int batch_objects(struct batch_options *opt) data.rest = p; } - error = batch_one_object(buf.buf, opt, &data); - if (error) - return error; + retval = batch_one_object(buf.buf, opt, &data); + if (retval) + break; } - return 0; + strbuf_release(&buf); + warn_on_object_refname_ambiguity = save_warning; + return retval; } static const char * const cat_file_usage[] = { diff --git a/builtin/check-attr.c b/builtin/check-attr.c index e9af7b2bfb..5600ec3f61 100644 --- a/builtin/check-attr.c +++ b/builtin/check-attr.c @@ -102,6 +102,9 @@ int cmd_check_attr(int argc, const char **argv, const char *prefix) struct git_attr_check *check; int cnt, i, doubledash, filei; + if (!is_bare_repository()) + setup_work_tree(); + git_config(git_default_config, NULL); argc = parse_options(argc, argv, prefix, check_attr_options, diff --git a/builtin/checkout-index.c b/builtin/checkout-index.c index 61e75eb60c..383dccf93e 100644 --- a/builtin/checkout-index.c +++ b/builtin/checkout-index.c @@ -5,7 +5,7 @@ * */ #include "builtin.h" -#include "cache.h" +#include "lockfile.h" #include "quote.h" #include "cache-tree.h" #include "parse-options.h" @@ -135,6 +135,7 @@ static int option_parse_u(const struct option *opt, int *newfd = opt->value; state.refresh_cache = 1; + state.istate = &the_index; if (*newfd < 0) *newfd = hold_locked_index(&lock_file, 1); return 0; @@ -279,8 +280,7 @@ int cmd_checkout_index(int argc, const char **argv, const char *prefix) checkout_all(prefix, prefix_length); if (0 <= newfd && - (write_cache(newfd, active_cache, active_nr) || - commit_locked_index(&lock_file))) + write_locked_index(&the_index, &lock_file, COMMIT_LOCK)) die("Unable to write new index file"); return 0; } diff --git a/builtin/checkout.c b/builtin/checkout.c index 54f80bd38a..b4decd5b19 100644 --- a/builtin/checkout.c +++ b/builtin/checkout.c @@ -1,5 +1,5 @@ -#include "cache.h" #include "builtin.h" +#include "lockfile.h" #include "parse-options.h" #include "refs.h" #include "commit.h" @@ -53,10 +53,10 @@ struct checkout_opts { static int post_checkout_hook(struct commit *old, struct commit *new, int changed) { - return run_hook(NULL, "post-checkout", - sha1_to_hex(old ? old->object.sha1 : null_sha1), - sha1_to_hex(new ? new->object.sha1 : null_sha1), - changed ? "1" : "0", NULL); + return run_hook_le(NULL, "post-checkout", + sha1_to_hex(old ? old->object.sha1 : null_sha1), + sha1_to_hex(new ? new->object.sha1 : null_sha1), + changed ? "1" : "0", NULL); /* "new" can be NULL when checking out from the index before a commit exists. */ @@ -225,7 +225,6 @@ static int checkout_paths(const struct checkout_opts *opts, int flag; struct commit *head; int errs = 0; - int newfd; struct lock_file *lock_file; if (opts->track != BRANCH_TRACK_UNSPECIFIED) @@ -256,7 +255,7 @@ static int checkout_paths(const struct checkout_opts *opts, lock_file = xcalloc(1, sizeof(struct lock_file)); - newfd = hold_locked_index(lock_file, 1); + hold_locked_index(lock_file, 1); if (read_cache_preload(&opts->pathspec) < 0) return error(_("corrupt index file")); @@ -297,8 +296,7 @@ static int checkout_paths(const struct checkout_opts *opts, * match_pathspec() for _all_ entries when * opts->source_tree != NULL. */ - if (match_pathspec_depth(&opts->pathspec, ce->name, ce_namelen(ce), - 0, ps_matched)) + if (ce_path_match(ce, &opts->pathspec, ps_matched)) ce->ce_flags |= CE_MATCHED; } @@ -338,6 +336,7 @@ static int checkout_paths(const struct checkout_opts *opts, memset(&state, 0, sizeof(state)); state.force = 1; state.refresh_cache = 1; + state.istate = &the_index; for (pos = 0; pos < active_nr; pos++) { struct cache_entry *ce = active_cache[pos]; if (ce->ce_flags & CE_MATCHED) { @@ -353,8 +352,7 @@ static int checkout_paths(const struct checkout_opts *opts, } } - if (write_cache(newfd, active_cache, active_nr) || - commit_locked_index(lock_file)) + if (write_locked_index(&the_index, lock_file, COMMIT_LOCK)) die(_("unable to write new index file")); read_ref_full("HEAD", rev, 0, &flag); @@ -380,8 +378,8 @@ static void show_local_changes(struct object *head, static void describe_detached_head(const char *msg, struct commit *commit) { struct strbuf sb = STRBUF_INIT; - parse_commit(commit); - pp_commit_easy(CMIT_FMT_ONELINE, commit, &sb); + if (!parse_commit(commit)) + pp_commit_easy(CMIT_FMT_ONELINE, commit, &sb); fprintf(stderr, "%s %s... %s\n", msg, find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV), sb.buf); strbuf_release(&sb); @@ -445,8 +443,8 @@ static int merge_working_tree(const struct checkout_opts *opts, { int ret; struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file)); - int newfd = hold_locked_index(lock_file, 1); + hold_locked_index(lock_file, 1); if (read_cache_preload(NULL) < 0) return error(_("corrupt index file")); @@ -554,8 +552,13 @@ static int merge_working_tree(const struct checkout_opts *opts, } } - if (write_cache(newfd, active_cache, active_nr) || - commit_locked_index(lock_file)) + if (!active_cache_tree) + active_cache_tree = cache_tree(); + + if (!cache_tree_fully_valid(active_cache_tree)) + cache_tree_update(&the_index, WRITE_TREE_SILENT | WRITE_TREE_REPAIR); + + if (write_locked_index(&the_index, lock_file, COMMIT_LOCK)) die(_("unable to write new index file")); if (!opts->force && !opts->quiet) @@ -625,7 +628,7 @@ static void update_refs_for_switch(const struct checkout_opts *opts, /* Nothing to do. */ } else if (opts->force_detach || !new->path) { /* No longer on any branch. */ update_ref(msg.buf, "HEAD", new->commit->object.sha1, NULL, - REF_NODEREF, DIE_ON_ERR); + REF_NODEREF, UPDATE_REFS_DIE_ON_ERR); if (!opts->quiet) { if (old->path && advice_detached_head) detach_advice(new->name); @@ -652,12 +655,8 @@ static void update_refs_for_switch(const struct checkout_opts *opts, } } if (old->path && old->name) { - char log_file[PATH_MAX], ref_file[PATH_MAX]; - - git_snpath(log_file, sizeof(log_file), "logs/%s", old->path); - git_snpath(ref_file, sizeof(ref_file), "%s", old->path); - if (!file_exists(ref_file) && file_exists(log_file)) - remove_path(log_file); + if (!ref_exists(old->path) && reflog_exists(old->path)) + delete_reflog(old->path); } } remove_branch_state(); @@ -677,12 +676,12 @@ static int add_pending_uninteresting_ref(const char *refname, static void describe_one_orphan(struct strbuf *sb, struct commit *commit) { - parse_commit(commit); strbuf_addstr(sb, " "); strbuf_addstr(sb, find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV)); strbuf_addch(sb, ' '); - pp_commit_easy(CMIT_FMT_ONELINE, commit, sb); + if (!parse_commit(commit)) + pp_commit_easy(CMIT_FMT_ONELINE, commit, sb); strbuf_addch(sb, '\n'); } @@ -781,15 +780,15 @@ static int switch_branches(const struct checkout_opts *opts, if (!(flag & REF_ISSYMREF)) old.path = NULL; - if (old.path && !prefixcmp(old.path, "refs/heads/")) - old.name = old.path + strlen("refs/heads/"); + if (old.path) + skip_prefix(old.path, "refs/heads/", &old.name); if (!new->name) { new->name = "HEAD"; new->commit = old.commit; if (!new->commit) die(_("You are on a branch yet to be born")); - parse_commit(new->commit); + parse_commit_or_die(new->commit); } ret = merge_working_tree(opts, &old, new, &writeout_error); @@ -816,7 +815,7 @@ static int git_checkout_config(const char *var, const char *value, void *cb) return 0; } - if (!prefixcmp(var, "submodule.")) + if (starts_with(var, "submodule.")) return parse_submodule_config_option(var, value); return git_xmerge_config(var, value, NULL); @@ -896,7 +895,7 @@ static int parse_branchname_arg(int argc, const char **argv, * between A and B, A...B names that merge base. * * (b) If <something> is _not_ a commit, either "--" is present - * or <something> is not a path, no -t nor -b was given, and + * or <something> is not a path, no -t or -b was given, and * and there is a tracking branch whose name is <something> * in one and only one remote, then this is a short-hand to * fork local <something> from that remote-tracking branch. @@ -995,7 +994,7 @@ static int parse_branchname_arg(int argc, const char **argv, /* not a commit */ *source_tree = parse_tree_indirect(rev); } else { - parse_commit(new->commit); + parse_commit_or_die(new->commit); *source_tree = new->commit->tree; } @@ -1096,7 +1095,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) OPT_BOOL(0, "detach", &opts.force_detach, N_("detach the HEAD at named commit")), OPT_SET_INT('t', "track", &opts.track, N_("set upstream info for new branch"), BRANCH_TRACK_EXPLICIT), - OPT_STRING(0, "orphan", &opts.new_orphan_branch, N_("new branch"), N_("new unparented branch")), + OPT_STRING(0, "orphan", &opts.new_orphan_branch, N_("new-branch"), N_("new unparented branch")), OPT_SET_INT('2', "ours", &opts.writeout_stage, N_("checkout our version for unmerged files"), 2), OPT_SET_INT('3', "theirs", &opts.writeout_stage, N_("checkout their version for unmerged files"), @@ -1151,10 +1150,8 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) const char *argv0 = argv[0]; if (!argc || !strcmp(argv0, "--")) die (_("--track needs a branch name")); - if (!prefixcmp(argv0, "refs/")) - argv0 += 5; - if (!prefixcmp(argv0, "remotes/")) - argv0 += 8; + skip_prefix(argv0, "refs/", &argv0); + skip_prefix(argv0, "remotes/", &argv0); argv0 = strchr(argv0, '/'); if (!argv0 || !argv0[1]) die (_("Missing branch name; try -b")); diff --git a/builtin/clean.c b/builtin/clean.c index ceab18257e..c35505ee6b 100644 --- a/builtin/clean.c +++ b/builtin/clean.c @@ -67,7 +67,7 @@ struct menu_item { char hotkey; const char *title; int selected; - int (*fn)(); + int (*fn)(void); }; enum menu_stuff_type { @@ -100,7 +100,9 @@ static int parse_clean_color_slot(const char *var) static int git_clean_config(const char *var, const char *value, void *cb) { - if (!prefixcmp(var, "column.")) + const char *slot_name; + + if (starts_with(var, "column.")) return git_column_config(var, value, "clean", &colopts); /* honors the color.interactive* config variables which also @@ -109,9 +111,8 @@ static int git_clean_config(const char *var, const char *value, void *cb) clean_use_color = git_config_colorbool(var, value); return 0; } - if (!prefixcmp(var, "color.interactive.")) { - int slot = parse_clean_color_slot(var + - strlen("color.interactive.")); + if (skip_prefix(var, "color.interactive.", &slot_name)) { + int slot = parse_clean_color_slot(slot_name); if (slot < 0) return 0; if (!value) @@ -154,7 +155,7 @@ static int remove_dirs(struct strbuf *path, const char *prefix, int force_flag, DIR *dir; struct strbuf quoted = STRBUF_INIT; struct dirent *e; - int res = 0, ret = 0, gone = 1, original_len = path->len, len, i; + 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; @@ -242,6 +243,7 @@ static int remove_dirs(struct strbuf *path, const char *prefix, int force_flag, } if (!*dir_gone && !quiet) { + int i; for (i = 0; i < dels.nr; i++) printf(dry_run ? _(msg_would_remove) : _(msg_remove), dels.items[i].string); } @@ -620,8 +622,7 @@ static int *list_and_choose(struct menu_opts *opts, struct menu_stuff *stuff) nr += chosen[i]; } - result = xmalloc(sizeof(int) * (nr + 1)); - memset(result, 0, sizeof(int) * (nr + 1)); + result = xcalloc(nr + 1, sizeof(int)); for (i = 0; i < stuff->nr && j < nr; i++) { if (chosen[i]) result[j++] = i; @@ -903,11 +904,11 @@ int cmd_clean(int argc, const char **argv, const char *prefix) if (!interactive && !dry_run && !force) { if (config_set) - die(_("clean.requireForce set to true and neither -i, -n nor -f given; " + die(_("clean.requireForce set to true and neither -i, -n, nor -f given; " "refusing to clean")); else - die(_("clean.requireForce defaults to true and neither -i, -n nor -f given; " - "refusing to clean")); + die(_("clean.requireForce defaults to true and neither -i, -n, nor -f given;" + " refusing to clean")); } if (force > 1) @@ -933,48 +934,28 @@ int cmd_clean(int argc, const char **argv, const char *prefix) for (i = 0; i < dir.nr; i++) { struct dir_entry *ent = dir.entries[i]; - int len, pos; int matches = 0; - const struct cache_entry *ce; struct stat st; const char *rel; - /* - * Remove the '/' at the end that directory - * walking adds for directory entries. - */ - len = ent->len; - if (len && ent->name[len-1] == '/') - len--; - pos = cache_name_pos(ent->name, len); - if (0 <= pos) - continue; /* exact match */ - pos = -pos - 1; - if (pos < active_nr) { - ce = active_cache[pos]; - if (ce_namelen(ce) == len && - !memcmp(ce->name, ent->name, len)) - continue; /* Yup, this one exists unmerged */ - } + if (!cache_name_is_other(ent->name, ent->len)) + continue; if (lstat(ent->name, &st)) die_errno("Cannot lstat '%s'", ent->name); if (pathspec.nr) - matches = match_pathspec_depth(&pathspec, ent->name, - len, 0, NULL); + matches = dir_path_match(ent, &pathspec, 0, NULL); - if (S_ISDIR(st.st_mode)) { - if (remove_directories || (matches == MATCHED_EXACTLY)) { - rel = relative_path(ent->name, prefix, &buf); - string_list_append(&del_list, rel); - } - } else { - if (pathspec.nr && !matches) - continue; - rel = relative_path(ent->name, prefix, &buf); - string_list_append(&del_list, rel); - } + if (pathspec.nr && !matches) + continue; + + if (S_ISDIR(st.st_mode) && !remove_directories && + matches != MATCHED_EXACTLY) + continue; + + rel = relative_path(ent->name, prefix, &buf); + string_list_append(&del_list, rel); } if (interactive && del_list.nr > 0) diff --git a/builtin/clone.c b/builtin/clone.c index cc11104d42..d3bf9532d6 100644 --- a/builtin/clone.c +++ b/builtin/clone.c @@ -9,6 +9,7 @@ */ #include "builtin.h" +#include "lockfile.h" #include "parse-options.h" #include "fetch-pack.h" #include "refs.h" @@ -252,6 +253,12 @@ static int add_one_reference(struct string_list_item *item, void *cb_data) 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); @@ -508,14 +515,14 @@ static void write_followtags(const struct ref *refs, const char *msg) { const struct ref *ref; for (ref = refs; ref; ref = ref->next) { - if (prefixcmp(ref->name, "refs/tags/")) + if (!starts_with(ref->name, "refs/tags/")) continue; - if (!suffixcmp(ref->name, "^{}")) + if (ends_with(ref->name, "^{}")) continue; if (!has_sha1_file(ref->old_sha1)) continue; update_ref(msg, ref->name, ref->old_sha1, - NULL, 0, DIE_ON_ERR); + NULL, 0, UPDATE_REFS_DIE_ON_ERR); } } @@ -578,19 +585,20 @@ static void update_remote_refs(const struct ref *refs, static void update_head(const struct ref *our, const struct ref *remote, const char *msg) { - if (our && !prefixcmp(our->name, "refs/heads/")) { + const char *head; + if (our && skip_prefix(our->name, "refs/heads/", &head)) { /* Local default branch link */ create_symref("HEAD", our->name, NULL); if (!option_bare) { - const char *head = skip_prefix(our->name, "refs/heads/"); - update_ref(msg, "HEAD", our->old_sha1, NULL, 0, DIE_ON_ERR); + update_ref(msg, "HEAD", our->old_sha1, 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); /* --branch specifies a non-branch (i.e. tags), detach HEAD */ update_ref(msg, "HEAD", c->object.sha1, - NULL, REF_NODEREF, DIE_ON_ERR); + NULL, REF_NODEREF, UPDATE_REFS_DIE_ON_ERR); } else if (remote) { /* * We know remote HEAD points to a non-branch, or @@ -598,7 +606,7 @@ static void update_head(const struct ref *our, const struct ref *remote, * Detach HEAD in all these cases. */ update_ref(msg, "HEAD", remote->old_sha1, - NULL, REF_NODEREF, DIE_ON_ERR); + NULL, REF_NODEREF, UPDATE_REFS_DIE_ON_ERR); } } @@ -610,7 +618,7 @@ static int checkout(void) struct unpack_trees_options opts; struct tree *tree; struct tree_desc t; - int err = 0, fd; + int err = 0; if (option_no_checkout) return 0; @@ -625,7 +633,7 @@ static int checkout(void) if (advice_detached_head) detach_advice(sha1_to_hex(sha1)); } else { - if (prefixcmp(head, "refs/heads/")) + if (!starts_with(head, "refs/heads/")) die(_("HEAD not found below refs/heads!")); } free(head); @@ -634,7 +642,7 @@ static int checkout(void) setup_work_tree(); lock_file = xcalloc(1, sizeof(struct lock_file)); - fd = hold_locked_index(lock_file, 1); + hold_locked_index(lock_file, 1); memset(&opts, 0, sizeof opts); opts.update = 1; @@ -650,12 +658,11 @@ static int checkout(void) if (unpack_trees(1, &t, &opts) < 0) die(_("unable to checkout working tree")); - if (write_cache(fd, active_cache, active_nr) || - commit_locked_index(lock_file)) + if (write_locked_index(&the_index, lock_file, COMMIT_LOCK)) die(_("unable to write new index file")); - err |= run_hook(NULL, "post-checkout", sha1_to_hex(null_sha1), - sha1_to_hex(sha1), "1", NULL); + err |= run_hook_le(NULL, "post-checkout", sha1_to_hex(null_sha1), + sha1_to_hex(sha1), "1", NULL); if (!err && option_recursive) err = run_command_v_opt(argv_submodule, RUN_GIT_CMD); @@ -679,9 +686,10 @@ static void write_config(struct string_list *config) } } -static void write_refspec_config(const char* src_ref_prefix, - const struct ref* our_head_points_at, - const struct ref* remote_head_points_at, struct strbuf* branch_top) +static void write_refspec_config(const char *src_ref_prefix, + const struct ref *our_head_points_at, + const struct ref *remote_head_points_at, + struct strbuf *branch_top) { struct strbuf key = STRBUF_INIT; struct strbuf value = STRBUF_INIT; @@ -689,16 +697,19 @@ static void write_refspec_config(const char* src_ref_prefix, if (option_mirror || !option_bare) { if (option_single_branch && !option_mirror) { if (option_branch) { - if (strstr(our_head_points_at->name, "refs/tags/")) + if (starts_with(our_head_points_at->name, "refs/tags/")) strbuf_addf(&value, "+%s:%s", our_head_points_at->name, our_head_points_at->name); else strbuf_addf(&value, "+%s:%s%s", our_head_points_at->name, branch_top->buf, option_branch); } else if (remote_head_points_at) { + const char *head = remote_head_points_at->name; + if (!skip_prefix(head, "refs/heads/", &head)) + die("BUG: remote HEAD points at non-head?"); + strbuf_addf(&value, "+%s:%s%s", remote_head_points_at->name, - branch_top->buf, - skip_prefix(remote_head_points_at->name, "refs/heads/")); + branch_top->buf, head); } /* * otherwise, the next "git fetch" will @@ -790,11 +801,6 @@ int cmd_clone(int argc, const char **argv, const char *prefix) die(_("repository '%s' does not exist"), repo_name); else repo = repo_name; - is_local = option_local != 0 && path && !is_bundle; - if (is_local && option_depth) - warning(_("--depth is ignored in local clones; use file:// instead.")); - if (option_local > 0 && !is_local) - warning(_("--local is ignored")); /* no need to be strict, transport_set_option() will validate it again */ if (option_depth && atoi(option_depth) < 1) @@ -887,6 +893,20 @@ int cmd_clone(int argc, const char **argv, const char *prefix) remote = remote_get(option_origin); transport = transport_get(remote, remote->url[0]); + 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 (!access(mkpath("%s/shallow", path), F_OK)) { + if (option_local > 0) + warning(_("source repository is shallow, ignoring --local")); + is_local = 0; + } + } + if (option_local > 0 && !is_local) + warning(_("--local is ignored")); + transport->cloning = 1; if (!transport->get_refs_list || (!is_local && !transport->fetch)) die(_("Don't know how to clone %s"), transport->url); @@ -986,5 +1006,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix) strbuf_release(&key); strbuf_release(&value); junk_mode = JUNK_LEAVE_ALL; + + free(refspec); return err; } diff --git a/builtin/column.c b/builtin/column.c index e125a55fc9..75818520e1 100644 --- a/builtin/column.c +++ b/builtin/column.c @@ -34,7 +34,7 @@ int cmd_column(int argc, const char **argv, const char *prefix) }; /* This one is special and must be the first one */ - if (argc > 1 && !prefixcmp(argv[1], "--command=")) { + if (argc > 1 && starts_with(argv[1], "--command=")) { command = argv[1] + 10; git_config(column_config, (void *)command); } else diff --git a/builtin/commit-tree.c b/builtin/commit-tree.c index f641ff2a89..8a66c74e0f 100644 --- a/builtin/commit-tree.c +++ b/builtin/commit-tree.c @@ -12,6 +12,8 @@ static const char commit_tree_usage[] = "git commit-tree [(-p <sha1>)...] [-S[<keyid>]] [-m <message>] [-F <file>] <sha1> <changelog"; +static const char *sign_commit; + static void new_parent(struct commit *parent, struct commit_list **parents_p) { unsigned char *sha1 = parent->object.sha1; @@ -31,6 +33,10 @@ 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); } @@ -41,7 +47,6 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix) unsigned char tree_sha1[20]; unsigned char commit_sha1[20]; struct strbuf buffer = STRBUF_INIT; - const char *sign_commit = NULL; git_config(commit_tree_config, NULL); @@ -66,6 +71,11 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix) continue; } + if (!strcmp(arg, "--no-gpg-sign")) { + sign_commit = NULL; + continue; + } + if (!strcmp(arg, "-m")) { if (argc <= ++i) usage(commit_tree_usage); @@ -113,8 +123,8 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix) die_errno("git commit-tree: failed to read"); } - if (commit_tree(&buffer, tree_sha1, parents, commit_sha1, - NULL, sign_commit)) { + if (commit_tree(buffer.buf, buffer.len, tree_sha1, parents, + commit_sha1, NULL, sign_commit)) { strbuf_release(&buffer); return 1; } diff --git a/builtin/commit.c b/builtin/commit.c index fedb45af8c..81dc622a3b 100644 --- a/builtin/commit.c +++ b/builtin/commit.c @@ -6,6 +6,7 @@ */ #include "cache.h" +#include "lockfile.h" #include "cache-tree.h" #include "color.h" #include "dir.h" @@ -42,7 +43,20 @@ static const char * const builtin_status_usage[] = { NULL }; -static const char implicit_ident_advice[] = +static const char implicit_ident_advice_noconfig[] = +N_("Your name and email address were configured automatically based\n" +"on your username and hostname. Please check that they are accurate.\n" +"You can suppress this message by setting them explicitly. Run the\n" +"following command and follow the instructions in your editor to edit\n" +"your configuration file:\n" +"\n" +" git config --global --edit\n" +"\n" +"After doing this, you may fix the identity used for this commit with:\n" +"\n" +" git commit --amend --reset-author\n"); + +static const char implicit_ident_advice_config[] = N_("Your name and email address were configured automatically based\n" "on your username and hostname. Please check that they are accurate.\n" "You can suppress this message by setting them explicitly:\n" @@ -113,6 +127,7 @@ static char *sign_commit; static enum { CLEANUP_SPACE, CLEANUP_NONE, + CLEANUP_SCISSORS, CLEANUP_ALL } cleanup_mode; static const char *cleanup_arg; @@ -234,7 +249,7 @@ static int list_paths(struct string_list *list, const char *with_tree, if (ce->ce_flags & CE_UPDATE) continue; - if (!match_pathspec_depth(pattern, ce->name, ce_namelen(ce), 0, m)) + if (!ce_path_match(ce, pattern, m)) continue; item = string_list_insert(list, ce->name); if (ce_skip_worktree(ce)) @@ -301,13 +316,11 @@ static void refresh_cache_or_die(int refresh_flags) die_resolve_conflict("commit"); } -static char *prepare_index(int argc, const char **argv, const char *prefix, - const struct commit *current_head, int is_status) +static const char *prepare_index(int argc, const char **argv, const char *prefix, + const struct commit *current_head, int is_status) { - int fd; struct string_list partial; struct pathspec pathspec; - char *old_index_env = NULL; int refresh_flags = REFRESH_QUIET; if (is_status) @@ -320,16 +333,16 @@ static char *prepare_index(int argc, const char **argv, const char *prefix, die(_("index file corrupt")); if (interactive) { - fd = hold_locked_index(&index_lock, 1); + char *old_index_env = NULL; + hold_locked_index(&index_lock, 1); refresh_cache_or_die(refresh_flags); - if (write_cache(fd, active_cache, active_nr) || - close_lock_file(&index_lock)) + if (write_locked_index(&the_index, &index_lock, CLOSE_LOCK)) die(_("unable to create temporary index")); old_index_env = getenv(INDEX_ENVIRONMENT); - setenv(INDEX_ENVIRONMENT, index_lock.filename, 1); + setenv(INDEX_ENVIRONMENT, index_lock.filename.buf, 1); if (interactive_add(argc, argv, prefix, patch_interactive) != 0) die(_("interactive add failed")); @@ -340,10 +353,17 @@ static char *prepare_index(int argc, const char **argv, const char *prefix, unsetenv(INDEX_ENVIRONMENT); discard_cache(); - read_cache_from(index_lock.filename); + read_cache_from(index_lock.filename.buf); + if (update_main_cache_tree(WRITE_TREE_SILENT) == 0) { + if (reopen_lock_file(&index_lock) < 0) + die(_("unable to write index file")); + if (write_locked_index(&the_index, &index_lock, CLOSE_LOCK)) + die(_("unable to update temporary index")); + } else + warning(_("Failed to update main cache tree")); commit_style = COMMIT_NORMAL; - return index_lock.filename; + return index_lock.filename.buf; } /* @@ -359,15 +379,14 @@ static char *prepare_index(int argc, const char **argv, const char *prefix, * (B) on failure, rollback the real index. */ if (all || (also && pathspec.nr)) { - fd = hold_locked_index(&index_lock, 1); + hold_locked_index(&index_lock, 1); add_files_to_cache(also ? prefix : NULL, &pathspec, 0); refresh_cache_or_die(refresh_flags); update_main_cache_tree(WRITE_TREE_SILENT); - if (write_cache(fd, active_cache, active_nr) || - close_lock_file(&index_lock)) + if (write_locked_index(&the_index, &index_lock, CLOSE_LOCK)) die(_("unable to write new_index file")); commit_style = COMMIT_NORMAL; - return index_lock.filename; + return index_lock.filename.buf; } /* @@ -380,12 +399,16 @@ static char *prepare_index(int argc, const char **argv, const char *prefix, * We still need to refresh the index here. */ if (!only && !pathspec.nr) { - fd = hold_locked_index(&index_lock, 1); + hold_locked_index(&index_lock, 1); refresh_cache_or_die(refresh_flags); - if (active_cache_changed) { + if (active_cache_changed + || !cache_tree_fully_valid(active_cache_tree)) { update_main_cache_tree(WRITE_TREE_SILENT); - if (write_cache(fd, active_cache, active_nr) || - commit_locked_index(&index_lock)) + active_cache_changed = 1; + } + if (active_cache_changed) { + if (write_locked_index(&the_index, &index_lock, + COMMIT_LOCK)) die(_("unable to write new_index file")); } else { rollback_lock_file(&index_lock); @@ -422,8 +445,7 @@ static char *prepare_index(int argc, const char **argv, const char *prefix, die(_("cannot do a partial commit during a cherry-pick.")); } - memset(&partial, 0, sizeof(partial)); - partial.strdup_strings = 1; + string_list_init(&partial, 1); if (list_paths(&partial, !current_head ? NULL : "HEAD", prefix, &pathspec)) exit(1); @@ -431,30 +453,29 @@ static char *prepare_index(int argc, const char **argv, const char *prefix, if (read_cache() < 0) die(_("cannot read the index")); - fd = hold_locked_index(&index_lock, 1); + hold_locked_index(&index_lock, 1); add_remove_files(&partial); refresh_cache(REFRESH_QUIET); - if (write_cache(fd, active_cache, active_nr) || - close_lock_file(&index_lock)) + update_main_cache_tree(WRITE_TREE_SILENT); + if (write_locked_index(&the_index, &index_lock, CLOSE_LOCK)) die(_("unable to write new_index file")); - fd = hold_lock_file_for_update(&false_lock, - git_path("next-index-%"PRIuMAX, - (uintmax_t) getpid()), - LOCK_DIE_ON_ERROR); + hold_lock_file_for_update(&false_lock, + git_path("next-index-%"PRIuMAX, + (uintmax_t) getpid()), + LOCK_DIE_ON_ERROR); create_base_index(current_head); add_remove_files(&partial); refresh_cache(REFRESH_QUIET); - if (write_cache(fd, active_cache, active_nr) || - close_lock_file(&false_lock)) + if (write_locked_index(&the_index, &false_lock, CLOSE_LOCK)) die(_("unable to write temporary index file")); discard_cache(); - read_cache_from(false_lock.filename); + read_cache_from(false_lock.filename.buf); - return false_lock.filename; + return false_lock.filename.buf; } static int run_status(FILE *fp, const char *index_file, const char *prefix, int nowarn, @@ -525,56 +546,82 @@ static int sane_ident_split(struct ident_split *person) return 1; } +static int parse_force_date(const char *in, struct strbuf *out) +{ + strbuf_addch(out, '@'); + + if (parse_date(in, out) < 0) { + int errors = 0; + unsigned long t = approxidate_careful(in, &errors); + if (errors) + return -1; + strbuf_addf(out, "%lu", t); + } + + return 0; +} + +static void set_ident_var(char **buf, char *val) +{ + free(*buf); + *buf = val; +} + +static char *envdup(const char *var) +{ + const char *val = getenv(var); + return val ? xstrdup(val) : NULL; +} + static void determine_author_info(struct strbuf *author_ident) { char *name, *email, *date; struct ident_split author; - name = getenv("GIT_AUTHOR_NAME"); - email = getenv("GIT_AUTHOR_EMAIL"); - date = getenv("GIT_AUTHOR_DATE"); + name = envdup("GIT_AUTHOR_NAME"); + email = envdup("GIT_AUTHOR_EMAIL"); + date = envdup("GIT_AUTHOR_DATE"); if (author_message) { - const char *a, *lb, *rb, *eol; + struct ident_split ident; size_t len; + const char *a; - a = strstr(author_message_buffer, "\nauthor "); + a = find_commit_header(author_message_buffer, "author", &len); if (!a) - die(_("invalid commit: %s"), author_message); - - lb = strchrnul(a + strlen("\nauthor "), '<'); - rb = strchrnul(lb, '>'); - eol = strchrnul(rb, '\n'); - if (!*lb || !*rb || !*eol) - die(_("invalid commit: %s"), author_message); - - if (lb == a + strlen("\nauthor ")) - /* \nauthor <foo@example.com> */ - name = xcalloc(1, 1); - else - name = xmemdupz(a + strlen("\nauthor "), - (lb - strlen(" ") - - (a + strlen("\nauthor ")))); - email = xmemdupz(lb + strlen("<"), rb - (lb + strlen("<"))); - len = eol - (rb + strlen("> ")); - date = xmalloc(len + 2); - *date = '@'; - memcpy(date + 1, rb + strlen("> "), len); - date[len + 1] = '\0'; + die(_("commit '%s' lacks author header"), author_message); + if (split_ident_line(&ident, a, len) < 0) + die(_("commit '%s' has malformed author line"), author_message); + + set_ident_var(&name, xmemdupz(ident.name_begin, ident.name_end - ident.name_begin)); + set_ident_var(&email, xmemdupz(ident.mail_begin, ident.mail_end - ident.mail_begin)); + + if (ident.date_begin) { + struct strbuf date_buf = STRBUF_INIT; + strbuf_addch(&date_buf, '@'); + strbuf_add(&date_buf, ident.date_begin, ident.date_end - ident.date_begin); + strbuf_addch(&date_buf, ' '); + strbuf_add(&date_buf, ident.tz_begin, ident.tz_end - ident.tz_begin); + set_ident_var(&date, strbuf_detach(&date_buf, NULL)); + } } if (force_author) { - const char *lb = strstr(force_author, " <"); - const char *rb = strchr(force_author, '>'); + struct ident_split ident; - if (!lb || !rb) + if (split_ident_line(&ident, force_author, strlen(force_author)) < 0) die(_("malformed --author parameter")); - name = xstrndup(force_author, lb - force_author); - email = xstrndup(lb + 2, rb - (lb + 2)); + set_ident_var(&name, xmemdupz(ident.name_begin, ident.name_end - ident.name_begin)); + set_ident_var(&email, xmemdupz(ident.mail_begin, ident.mail_end - ident.mail_begin)); + } + + if (force_date) { + struct strbuf date_buf = STRBUF_INIT; + if (parse_force_date(force_date, &date_buf)) + die(_("invalid date format: %s"), force_date); + set_ident_var(&date, strbuf_detach(&date_buf, NULL)); } - if (force_date) - date = force_date; strbuf_addstr(author_ident, fmt_ident(name, email, date, IDENT_STRICT)); if (!split_ident_line(&author, author_ident->buf, author_ident->len) && sane_ident_split(&author)) { @@ -582,15 +629,52 @@ static void determine_author_info(struct strbuf *author_ident) export_one("GIT_AUTHOR_EMAIL", author.mail_begin, author.mail_end, 0); export_one("GIT_AUTHOR_DATE", author.date_begin, author.tz_end, '@'); } + + free(name); + free(email); + free(date); +} + +static void split_ident_or_die(struct ident_split *id, const struct strbuf *buf) +{ + if (split_ident_line(id, buf->buf, buf->len) || + !sane_ident_split(id)) + die(_("Malformed ident string: '%s'"), buf->buf); } -static char *cut_ident_timestamp_part(char *string) +static int author_date_is_interesting(void) { - char *ket = strrchr(string, '>'); - if (!ket || ket[1] != ' ') - die(_("Malformed ident string: '%s'"), string); - *++ket = '\0'; - return ket; + return author_message || force_date; +} + +static void adjust_comment_line_char(const struct strbuf *sb) +{ + char candidates[] = "#;@!$%^&|:"; + char *candidate; + const char *p; + + comment_line_char = candidates[0]; + if (!memchr(sb->buf, comment_line_char, sb->len)) + return; + + p = sb->buf; + candidate = strchr(candidates, *p); + if (candidate) + *candidate = ' '; + for (p = sb->buf; *p; p++) { + if ((p[0] == '\n' || p[0] == '\r') && p[1]) { + candidate = strchr(candidates, p[1]); + if (candidate) + *candidate = ' '; + } + } + + for (p = candidates; *p == ' '; p++) + ; + if (!*p) + die(_("unable to select a comment character that is not used\n" + "in the current commit message")); + comment_line_char = *p; } static int prepare_to_commit(const char *index_file, const char *prefix, @@ -600,19 +684,17 @@ static int prepare_to_commit(const char *index_file, const char *prefix, { struct stat statbuf; struct strbuf committer_ident = STRBUF_INIT; - int commitable, saved_color_setting; + int commitable; struct strbuf sb = STRBUF_INIT; - char *buffer; const char *hook_arg1 = NULL; const char *hook_arg2 = NULL; - int ident_shown = 0; int clean_message_contents = (cleanup_mode != CLEANUP_NONE); int old_display_comment_prefix; /* This checks and barfs if author is badly specified */ determine_author_info(author_ident); - if (!no_verify && run_hook(index_file, "pre-commit", NULL)) + if (!no_verify && run_commit_hook(use_editor, index_file, "pre-commit", NULL)) return 0; if (squash_message) { @@ -649,10 +731,10 @@ static int prepare_to_commit(const char *index_file, const char *prefix, logfile); hook_arg1 = "message"; } else if (use_message) { + char *buffer; buffer = strstr(use_message_buffer, "\n\n"); - if (!use_editor && (!buffer || buffer[2] == '\0')) - die(_("commit has empty message")); - strbuf_add(&sb, buffer + 2, strlen(buffer + 2)); + if (buffer) + strbuf_addstr(&sb, buffer + 2); hook_arg1 = "commit"; hook_arg2 = use_message; } else if (fixup_message) { @@ -733,7 +815,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix, eol = nl - sb.buf; else eol = sb.len; - if (!prefixcmp(sb.buf + previous, "\nConflicts:\n")) { + if (starts_with(sb.buf + previous, "\nConflicts:\n")) { ignore_footer = sb.len - previous; break; } @@ -748,13 +830,20 @@ static int prepare_to_commit(const char *index_file, const char *prefix, if (fwrite(sb.buf, 1, sb.len, s->fp) < sb.len) die_errno(_("could not write commit template")); + if (auto_comment_line_char) + adjust_comment_line_char(&sb); strbuf_release(&sb); /* This checks if committer ident is explicitly given */ strbuf_addstr(&committer_ident, git_committer_info(IDENT_STRICT)); if (use_editor && include_status) { - char *ai_tmp, *ci_tmp; - if (whence != FROM_COMMIT) + int ident_shown = 0; + int saved_color_setting; + struct ident_split ci, ai; + + if (whence != FROM_COMMIT) { + if (cleanup_mode == CLEANUP_SCISSORS) + wt_status_add_cut_line(s->fp); status_printf_ln(s, GIT_COLOR_NORMAL, whence == FROM_MERGE ? _("\n" @@ -770,6 +859,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix, git_path(whence == FROM_MERGE ? "MERGE_HEAD" : "CHERRY_PICK_HEAD")); + } fprintf(s->fp, "\n"); if (cleanup_mode == CLEANUP_ALL) @@ -777,6 +867,8 @@ static int prepare_to_commit(const char *index_file, const char *prefix, _("Please enter the commit message for your changes." " Lines starting\nwith '%c' will be ignored, and an empty" " message aborts the commit.\n"), comment_line_char); + else if (cleanup_mode == CLEANUP_SCISSORS && whence == FROM_COMMIT) + wt_status_add_cut_line(s->fp); else /* CLEANUP_SPACE, that is. */ status_printf(s, GIT_COLOR_NORMAL, _("Please enter the commit message for your changes." @@ -788,32 +880,39 @@ static int prepare_to_commit(const char *index_file, const char *prefix, status_printf_ln(s, GIT_COLOR_NORMAL, "%s", only_include_assumed); - ai_tmp = cut_ident_timestamp_part(author_ident->buf); - ci_tmp = cut_ident_timestamp_part(committer_ident.buf); - if (strcmp(author_ident->buf, committer_ident.buf)) + split_ident_or_die(&ai, author_ident); + split_ident_or_die(&ci, &committer_ident); + + if (ident_cmp(&ai, &ci)) + status_printf_ln(s, GIT_COLOR_NORMAL, + _("%s" + "Author: %.*s <%.*s>"), + ident_shown++ ? "" : "\n", + (int)(ai.name_end - ai.name_begin), ai.name_begin, + (int)(ai.mail_end - ai.mail_begin), ai.mail_begin); + + if (author_date_is_interesting()) status_printf_ln(s, GIT_COLOR_NORMAL, _("%s" - "Author: %s"), + "Date: %s"), ident_shown++ ? "" : "\n", - author_ident->buf); + show_ident_date(&ai, DATE_NORMAL)); if (!committer_ident_sufficiently_given()) status_printf_ln(s, GIT_COLOR_NORMAL, _("%s" - "Committer: %s"), + "Committer: %.*s <%.*s>"), ident_shown++ ? "" : "\n", - committer_ident.buf); + (int)(ci.name_end - ci.name_begin), ci.name_begin, + (int)(ci.mail_end - ci.mail_begin), ci.mail_begin); if (ident_shown) - status_printf_ln(s, GIT_COLOR_NORMAL, ""); + status_printf_ln(s, GIT_COLOR_NORMAL, "%s", ""); saved_color_setting = s->use_color; s->use_color = 0; commitable = run_status(s->fp, index_file, prefix, 1, s); s->use_color = saved_color_setting; - - *ai_tmp = ' '; - *ci_tmp = ' '; } else { unsigned char sha1[20]; const char *parent = "HEAD"; @@ -826,8 +925,22 @@ static int prepare_to_commit(const char *index_file, const char *prefix, if (get_sha1(parent, sha1)) commitable = !!active_nr; - else - commitable = index_differs_from(parent, 0); + else { + /* + * Unless the user did explicitly request a submodule + * ignore mode by passing a command line option we do + * not ignore any changed submodule SHA-1s when + * comparing index and parent, no matter what is + * configured. Otherwise we won't commit any + * submodules which were manually staged, which would + * be really confusing. + */ + int diff_flags = DIFF_OPT_OVERRIDE_SUBMODULE_CONFIG; + if (ignore_submodule_arg && + !strcmp(ignore_submodule_arg, "all")) + diff_flags |= DIFF_OPT_IGNORE_SUBMODULES; + commitable = index_differs_from(parent, diff_flags); + } } strbuf_release(&committer_ident); @@ -866,8 +979,8 @@ static int prepare_to_commit(const char *index_file, const char *prefix, return 0; } - if (run_hook(index_file, "prepare-commit-msg", - git_path(commit_editmsg), hook_arg1, hook_arg2, NULL)) + if (run_commit_hook(use_editor, index_file, "prepare-commit-msg", + git_path(commit_editmsg), hook_arg1, hook_arg2, NULL)) return 0; if (use_editor) { @@ -883,7 +996,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix, } if (!no_verify && - run_hook(index_file, "commit-msg", git_path(commit_editmsg), NULL)) { + run_commit_hook(use_editor, index_file, "commit-msg", git_path(commit_editmsg), NULL)) { return 0; } @@ -904,7 +1017,7 @@ static int rest_is_empty(struct strbuf *sb, int start) eol = sb->len; if (strlen(sign_off_header) <= eol - i && - !prefixcmp(sb->buf + i, sign_off_header)) { + starts_with(sb->buf + i, sign_off_header)) { i = eol; continue; } @@ -934,7 +1047,7 @@ static int message_is_empty(struct strbuf *sb) static int template_untouched(struct strbuf *sb) { struct strbuf tmpl = STRBUF_INIT; - char *start; + const char *start; if (cleanup_mode == CLEANUP_NONE && sb->len) return 0; @@ -943,8 +1056,7 @@ static int template_untouched(struct strbuf *sb) return 0; stripspace(&tmpl, cleanup_mode == CLEANUP_ALL); - start = (char *)skip_prefix(sb->buf, tmpl.buf); - if (!start) + if (!skip_prefix(sb->buf, tmpl.buf, &start)) start = sb->buf; strbuf_release(&tmpl); return rest_is_empty(sb, start - sb->buf); @@ -969,7 +1081,8 @@ static const char *find_author_by_nickname(const char *name) revs.mailmap = &mailmap; read_mailmap(revs.mailmap, NULL); - prepare_revision_walk(&revs); + if (prepare_revision_walk(&revs)) + die(_("revision walk setup failed")); commit = get_revision(&revs); if (commit) { struct pretty_print_context ctx = {0}; @@ -1067,8 +1180,6 @@ static int parse_and_validate_options(int argc, const char *argv[], use_editor = 0; if (0 <= edit_flag) use_editor = edit_flag; - if (!use_editor) - setenv("GIT_EDITOR", ":", 1); /* Sanity check options */ if (amend && !current_head) @@ -1123,7 +1234,7 @@ static int parse_and_validate_options(int argc, const char *argv[], if (argc == 0 && only && amend) only_include_assumed = _("Clever... amending the last one with dirty index."); if (argc > 0 && !also && !only) - only_include_assumed = _("Explicit paths specified without -i nor -o; assuming --only paths..."); + only_include_assumed = _("Explicit paths specified without -i or -o; assuming --only paths..."); if (!cleanup_arg || !strcmp(cleanup_arg, "default")) cleanup_mode = use_editor ? CLEANUP_ALL : CLEANUP_SPACE; else if (!strcmp(cleanup_arg, "verbatim")) @@ -1132,6 +1243,8 @@ static int parse_and_validate_options(int argc, const char *argv[], cleanup_mode = CLEANUP_SPACE; else if (!strcmp(cleanup_arg, "strip")) cleanup_mode = CLEANUP_ALL; + else if (!strcmp(cleanup_arg, "scissors")) + cleanup_mode = use_editor ? CLEANUP_SCISSORS : CLEANUP_SPACE; else die(_("Invalid cleanup mode %s"), cleanup_arg); @@ -1182,8 +1295,9 @@ static int parse_status_slot(const char *var, int offset) static int git_status_config(const char *k, const char *v, void *cb) { struct wt_status *s = cb; + const char *slot_name; - if (!prefixcmp(k, "column.")) + if (starts_with(k, "column.")) return git_column_config(k, v, "status", &s->colopts); if (!strcmp(k, "status.submodulesummary")) { int is_bool; @@ -1211,8 +1325,9 @@ static int git_status_config(const char *k, const char *v, void *cb) s->display_comment_prefix = git_config_bool(k, v); return 0; } - if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) { - int slot = parse_status_slot(k, 13); + if (skip_prefix(k, "status.color.", &slot_name) || + skip_prefix(k, "color.status.", &slot_name)) { + int slot = parse_status_slot(k, slot_name - k); if (slot < 0) return 0; if (!v) @@ -1323,6 +1438,24 @@ int cmd_status(int argc, const char **argv, const char *prefix) return 0; } +static const char *implicit_ident_advice(void) +{ + char *user_config = NULL; + char *xdg_config = NULL; + int config_exists; + + home_config_paths(&user_config, &xdg_config, "config"); + config_exists = file_exists(user_config) || file_exists(xdg_config); + free(user_config); + free(xdg_config); + + if (config_exists) + return _(implicit_ident_advice_config); + else + return _(implicit_ident_advice_noconfig); + +} + static void print_summary(const char *prefix, const unsigned char *sha1, int initial_commit) { @@ -1338,7 +1471,7 @@ static void print_summary(const char *prefix, const unsigned char *sha1, commit = lookup_commit(sha1); if (!commit) die(_("couldn't look up newly created commit")); - if (!commit || parse_commit(commit)) + if (parse_commit(commit)) die(_("could not parse newly created commit")); strbuf_addstr(&format, "format:%h] %s"); @@ -1349,12 +1482,19 @@ static void print_summary(const char *prefix, const unsigned char *sha1, strbuf_addstr(&format, "\n Author: "); strbuf_addbuf_percentquote(&format, &author_ident); } + if (author_date_is_interesting()) { + struct strbuf date = STRBUF_INIT; + format_commit_message(commit, "%ad", &date, &pctx); + strbuf_addstr(&format, "\n Date: "); + strbuf_addbuf_percentquote(&format, &date); + strbuf_release(&date); + } if (!committer_ident_sufficiently_given()) { strbuf_addstr(&format, "\n Committer: "); strbuf_addbuf_percentquote(&format, &committer_ident); if (advice_implicit_identity) { strbuf_addch(&format, '\n'); - strbuf_addstr(&format, _(implicit_ident_advice)); + strbuf_addstr(&format, implicit_ident_advice()); } } strbuf_release(&author_ident); @@ -1376,13 +1516,11 @@ static void print_summary(const char *prefix, const unsigned char *sha1, diff_setup_done(&rev.diffopt); head = resolve_ref_unsafe("HEAD", junk_sha1, 0, NULL); - printf("[%s%s ", - !prefixcmp(head, "refs/heads/") ? - head + 11 : - !strcmp(head, "HEAD") ? - _("detached HEAD") : - head, - initial_commit ? _(" (root-commit)") : ""); + if (!strcmp(head, "HEAD")) + head = _("detached HEAD"); + else + skip_prefix(head, "refs/heads/", &head); + printf("[%s%s ", head, initial_commit ? _(" (root-commit)") : ""); if (!log_tree_commit(&rev, commit)) { rev.always_show_header = 1; @@ -1406,6 +1544,10 @@ static int git_commit_config(const char *k, const char *v, void *cb) } if (!strcmp(k, "commit.cleanup")) return git_config_string(&cleanup_arg, k, v); + if (!strcmp(k, "commit.gpgsign")) { + sign_commit = git_config_bool(k, v) ? "" : NULL; + return 0; + } status = git_gpg_config(k, v, NULL); if (status) @@ -1418,7 +1560,7 @@ static int run_rewrite_hook(const unsigned char *oldsha1, { /* oldsha1 SP newsha1 LF NUL */ static char buf[2*40 + 3]; - struct child_process proc; + struct child_process proc = CHILD_PROCESS_INIT; const char *argv[3]; int code; size_t n; @@ -1430,7 +1572,6 @@ static int run_rewrite_hook(const unsigned char *oldsha1, argv[1] = "amend"; argv[2] = NULL; - memset(&proc, 0, sizeof(proc)); proc.argv = argv; proc.in = -1; proc.stdout_to_stderr = 1; @@ -1445,6 +1586,29 @@ static int run_rewrite_hook(const unsigned char *oldsha1, return finish_command(&proc); } +int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...) +{ + const char *hook_env[3] = { NULL }; + char index[PATH_MAX]; + va_list args; + int ret; + + snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file); + hook_env[0] = index; + + /* + * Let the hook know that no editor will be launched. + */ + if (!editor_is_used) + hook_env[1] = "GIT_EDITOR=:"; + + va_start(args, name); + ret = run_hook_ve(hook_env, name, args); + va_end(args); + + return ret; +} + int cmd_commit(int argc, const char **argv, const char *prefix) { static struct wt_status s; @@ -1467,7 +1631,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix) OPT_BOOL('e', "edit", &edit_flag, N_("force edit of commit")), OPT_STRING(0, "cleanup", &cleanup_arg, N_("default"), N_("how to strip spaces and #comments from message")), OPT_BOOL(0, "status", &include_status, N_("include status in commit message template")), - { OPTION_STRING, 'S', "gpg-sign", &sign_commit, N_("key id"), + { OPTION_STRING, 'S', "gpg-sign", &sign_commit, N_("key-id"), N_("GPG sign commit"), PARSE_OPT_OPTARG, NULL, (intptr_t) "" }, /* end commit message options */ @@ -1507,12 +1671,12 @@ int cmd_commit(int argc, const char **argv, const char *prefix) const char *index_file, *reflog_msg; char *nl; unsigned char sha1[20]; - struct ref_lock *ref_lock; struct commit_list *parents = NULL, **pptr = &parents; struct stat statbuf; - int allow_fast_forward = 1; struct commit *current_head = NULL; struct commit_extra_header *extra = NULL; + struct ref_transaction *transaction; + struct strbuf err = STRBUF_INIT; if (argc == 2 && !strcmp(argv[1], "-h")) usage_with_options(builtin_commit_usage, builtin_commit_options); @@ -1525,7 +1689,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix) current_head = NULL; else { current_head = lookup_commit_or_die(sha1, "HEAD"); - if (!current_head || parse_commit(current_head)) + if (parse_commit(current_head)) die(_("could not parse HEAD commit")); } argc = parse_and_validate_options(argc, argv, builtin_commit_options, @@ -1558,6 +1722,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix) } else if (whence == FROM_MERGE) { struct strbuf m = STRBUF_INIT; FILE *fp; + int allow_fast_forward = 1; if (!reflog_msg) reflog_msg = "commit (merge)"; @@ -1600,8 +1765,8 @@ int cmd_commit(int argc, const char **argv, const char *prefix) die(_("could not read commit message: %s"), strerror(saved_errno)); } - /* Truncate the message just before the diff, if any. */ - if (verbose) + if (verbose || /* Truncate the message just before the diff, if any. */ + cleanup_mode == CLEANUP_SCISSORS) wt_status_truncate_message_at_cut_line(&sb); if (cleanup_mode != CLEANUP_NONE) @@ -1625,20 +1790,14 @@ int cmd_commit(int argc, const char **argv, const char *prefix) append_merge_tag_headers(parents, &tail); } - if (commit_tree_extended(&sb, active_cache_tree->sha1, parents, sha1, - author_ident.buf, sign_commit, extra)) { + if (commit_tree_extended(sb.buf, sb.len, active_cache_tree->sha1, + parents, sha1, author_ident.buf, sign_commit, extra)) { rollback_index_files(); die(_("failed to write commit object")); } strbuf_release(&author_ident); free_commit_extra_headers(extra); - ref_lock = lock_any_ref_for_update("HEAD", - !current_head - ? NULL - : current_head->object.sha1, - 0, NULL); - nl = strchr(sb.buf, '\n'); if (nl) strbuf_setlen(&sb, nl + 1 - sb.buf); @@ -1647,14 +1806,17 @@ int cmd_commit(int argc, const char **argv, const char *prefix) strbuf_insert(&sb, 0, reflog_msg, strlen(reflog_msg)); strbuf_insert(&sb, strlen(reflog_msg), ": ", 2); - if (!ref_lock) { - rollback_index_files(); - die(_("cannot lock HEAD ref")); - } - if (write_ref_sha1(ref_lock, sha1, sb.buf) < 0) { + transaction = ref_transaction_begin(&err); + if (!transaction || + ref_transaction_update(transaction, "HEAD", sha1, + current_head + ? current_head->object.sha1 : NULL, + 0, !!current_head, &err) || + ref_transaction_commit(transaction, sb.buf, &err)) { rollback_index_files(); - die(_("cannot update HEAD ref")); + die("%s", err.buf); } + ref_transaction_free(transaction); unlink(git_path("CHERRY_PICK_HEAD")); unlink(git_path("REVERT_HEAD")); @@ -1665,11 +1827,11 @@ int cmd_commit(int argc, const char **argv, const char *prefix) if (commit_index_files()) die (_("Repository has been updated, but unable to write\n" - "new_index file. Check that disk is not full or quota is\n" + "new_index file. Check that disk is not full and quota is\n" "not exceeded, and then \"git reset HEAD\" to recover.")); rerere(0); - run_hook(get_index_file(), "post-commit", NULL); + run_commit_hook(use_editor, get_index_file(), "post-commit", NULL); if (amend && !no_post_rewrite) { struct notes_rewrite_cfg *cfg; cfg = init_copy_notes_for_rewrite("amend"); @@ -1683,5 +1845,6 @@ int cmd_commit(int argc, const char **argv, const char *prefix) if (!quiet) print_summary(prefix, sha1, !current_head); + strbuf_release(&err); return 0; } diff --git a/builtin/config.c b/builtin/config.c index 20e89fe4e0..37305e93e9 100644 --- a/builtin/config.c +++ b/builtin/config.c @@ -21,8 +21,7 @@ static char key_delim = ' '; static char term = '\n'; static int use_global_config, use_system_config, use_local_config; -static const char *given_config_file; -static const char *given_config_blob; +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; @@ -55,8 +54,8 @@ static struct option builtin_config_options[] = { OPT_BOOL(0, "global", &use_global_config, N_("use global config file")), OPT_BOOL(0, "system", &use_system_config, N_("use system config file")), OPT_BOOL(0, "local", &use_local_config, N_("use repository config file")), - OPT_STRING('f', "file", &given_config_file, N_("file"), N_("use given config file")), - OPT_STRING(0, "blob", &given_config_blob, N_("blob-id"), N_("read config from given blob object")), + OPT_STRING('f', "file", &given_config_source.file, N_("file"), N_("use given config file")), + OPT_STRING(0, "blob", &given_config_source.blob, N_("blob-id"), N_("read config from given blob object")), OPT_GROUP(N_("Action")), OPT_BIT(0, "get", &actions, N_("get value: name [value-regex]"), ACTION_GET), OPT_BIT(0, "get-all", &actions, N_("get all values: key [value-regex]"), ACTION_GET_ALL), @@ -224,8 +223,7 @@ static int get_value(const char *key_, const char *regex_) } git_config_with_options(collect_config, &values, - given_config_file, given_config_blob, - respect_includes); + &given_config_source, respect_includes); ret = !values.nr; @@ -309,8 +307,7 @@ static void get_color(const char *def_color) get_color_found = 0; parsed_color[0] = '\0'; git_config_with_options(git_get_color_config, NULL, - given_config_file, given_config_blob, - respect_includes); + &given_config_source, respect_includes); if (!get_color_found && def_color) color_parse(def_color, "command line", parsed_color); @@ -339,8 +336,7 @@ static int get_colorbool(int print) get_diff_color_found = -1; get_color_ui_found = -1; git_config_with_options(git_get_colorbool_config, NULL, - given_config_file, given_config_blob, - respect_includes); + &given_config_source, respect_includes); if (get_colorbool_found < 0) { if (!strcmp(get_colorbool_slot, "color.diff")) @@ -362,9 +358,12 @@ static int get_colorbool(int print) return get_colorbool_found ? 0 : 1; } -static void check_blob_write(void) +static void check_write(void) { - if (given_config_blob) + if (given_config_source.use_stdin) + die("writing to stdin is not supported"); + + if (given_config_source.blob) die("writing config blobs is not supported"); } @@ -396,19 +395,6 @@ static int urlmatch_collect_fn(const char *var, const char *value, void *cb) return 0; } -static char *dup_downcase(const char *string) -{ - char *result; - size_t len, i; - - len = strlen(string); - result = xmalloc(len + 1); - for (i = 0; i < len; i++) - result[i] = tolower(string[i]); - result[i] = '\0'; - return result; -} - static int get_urlmatch(const char *var, const char *url) { char *section_tail; @@ -423,7 +409,7 @@ static int get_urlmatch(const char *var, const char *url) if (!url_normalize(url, &config.url)) die("%s", config.url.err); - config.section = dup_downcase(var); + config.section = xstrdup_tolower(var); section_tail = strchr(config.section, '.'); if (section_tail) { *section_tail = '\0'; @@ -435,7 +421,7 @@ static int get_urlmatch(const char *var, const char *url) } git_config_with_options(urlmatch_config_entry, &config, - given_config_file, NULL, respect_includes); + &given_config_source, respect_includes); for_each_string_list_item(item, &values) { struct urlmatch_current_candidate_value *matched = item->util; @@ -459,23 +445,43 @@ static int get_urlmatch(const char *var, const char *url) return 0; } +static char *default_user_config(void) +{ + struct strbuf buf = STRBUF_INIT; + strbuf_addf(&buf, + _("# This is Git's per-user configuration file.\n" + "[core]\n" + "# Please adapt and uncomment the following lines:\n" + "# user = %s\n" + "# email = %s\n"), + ident_default_name(), + ident_default_email()); + return strbuf_detach(&buf, NULL); +} + int cmd_config(int argc, const char **argv, const char *prefix) { int nongit = !startup_info->have_repository; char *value; - given_config_file = getenv(CONFIG_ENVIRONMENT); + given_config_source.file = getenv(CONFIG_ENVIRONMENT); argc = parse_options(argc, argv, prefix, builtin_config_options, builtin_config_usage, PARSE_OPT_STOP_AT_NON_OPTION); if (use_global_config + use_system_config + use_local_config + - !!given_config_file + !!given_config_blob > 1) { + !!given_config_source.file + !!given_config_source.blob > 1) { error("only one config file at a time."); usage_with_options(builtin_config_usage, builtin_config_options); } + if (given_config_source.file && + !strcmp(given_config_source.file, "-")) { + given_config_source.file = NULL; + given_config_source.use_stdin = 1; + } + if (use_global_config) { char *user_config = NULL; char *xdg_config = NULL; @@ -493,24 +499,24 @@ int cmd_config(int argc, const char **argv, const char *prefix) if (access_or_warn(user_config, R_OK, 0) && xdg_config && !access_or_warn(xdg_config, R_OK, 0)) - given_config_file = xdg_config; + given_config_source.file = xdg_config; else - given_config_file = user_config; + given_config_source.file = user_config; } else if (use_system_config) - given_config_file = git_etc_gitconfig(); + given_config_source.file = git_etc_gitconfig(); else if (use_local_config) - given_config_file = git_pathdup("config"); - else if (given_config_file) { - if (!is_absolute_path(given_config_file) && prefix) - given_config_file = + given_config_source.file = git_pathdup("config"); + else if (given_config_source.file) { + if (!is_absolute_path(given_config_source.file) && prefix) + given_config_source.file = xstrdup(prefix_filename(prefix, strlen(prefix), - given_config_file)); + given_config_source.file)); } if (respect_includes == -1) - respect_includes = !given_config_file; + respect_includes = !given_config_source.file; if (end_null) { term = '\0'; @@ -549,57 +555,70 @@ int cmd_config(int argc, const char **argv, const char *prefix) if (actions == ACTION_LIST) { check_argc(argc, 0, 0); if (git_config_with_options(show_all_config, NULL, - given_config_file, - given_config_blob, + &given_config_source, respect_includes) < 0) { - if (given_config_file) + if (given_config_source.file) die_errno("unable to read config file '%s'", - given_config_file); + given_config_source.file); else die("error processing config file(s)"); } } else if (actions == ACTION_EDIT) { + const char *config_file = given_config_source.file ? + given_config_source.file : git_path("config"); check_argc(argc, 0, 0); - if (!given_config_file && nongit) + if (!given_config_source.file && nongit) die("not in a git directory"); - if (given_config_blob) + if (given_config_source.use_stdin) + die("editing stdin is not supported"); + if (given_config_source.blob) die("editing blobs is not supported"); git_config(git_default_config, NULL); - launch_editor(given_config_file ? - given_config_file : git_path("config"), - NULL, NULL); + if (use_global_config) { + int fd = open(config_file, O_CREAT | O_EXCL | O_WRONLY, 0666); + if (fd) { + char *content = default_user_config(); + write_str_in_full(fd, content); + free(content); + close(fd); + } + else if (errno != EEXIST) + die_errno(_("cannot create configuration file %s"), config_file); + } + launch_editor(config_file, NULL, NULL); } else if (actions == ACTION_SET) { int ret; - check_blob_write(); + check_write(); check_argc(argc, 2, 2); value = normalize_value(argv[0], argv[1]); - ret = git_config_set_in_file(given_config_file, argv[0], value); + ret = git_config_set_in_file(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]); return ret; } else if (actions == ACTION_SET_ALL) { - check_blob_write(); + check_write(); check_argc(argc, 2, 3); value = normalize_value(argv[0], argv[1]); - return git_config_set_multivar_in_file(given_config_file, + return git_config_set_multivar_in_file(given_config_source.file, argv[0], value, argv[2], 0); } else if (actions == ACTION_ADD) { - check_blob_write(); + check_write(); check_argc(argc, 2, 2); value = normalize_value(argv[0], argv[1]); - return git_config_set_multivar_in_file(given_config_file, - argv[0], value, "^$", 0); + return git_config_set_multivar_in_file(given_config_source.file, + argv[0], value, + CONFIG_REGEX_NONE, 0); } else if (actions == ACTION_REPLACE_ALL) { - check_blob_write(); + check_write(); check_argc(argc, 2, 3); value = normalize_value(argv[0], argv[1]); - return git_config_set_multivar_in_file(given_config_file, + return git_config_set_multivar_in_file(given_config_source.file, argv[0], value, argv[2], 1); } else if (actions == ACTION_GET) { @@ -623,26 +642,26 @@ int cmd_config(int argc, const char **argv, const char *prefix) return get_urlmatch(argv[0], argv[1]); } else if (actions == ACTION_UNSET) { - check_blob_write(); + check_write(); check_argc(argc, 1, 2); if (argc == 2) - return git_config_set_multivar_in_file(given_config_file, + return git_config_set_multivar_in_file(given_config_source.file, argv[0], NULL, argv[1], 0); else - return git_config_set_in_file(given_config_file, + return git_config_set_in_file(given_config_source.file, argv[0], NULL); } else if (actions == ACTION_UNSET_ALL) { - check_blob_write(); + check_write(); check_argc(argc, 1, 2); - return git_config_set_multivar_in_file(given_config_file, + return git_config_set_multivar_in_file(given_config_source.file, argv[0], NULL, argv[1], 1); } else if (actions == ACTION_RENAME_SECTION) { int ret; - check_blob_write(); + check_write(); check_argc(argc, 2, 2); - ret = git_config_rename_section_in_file(given_config_file, + ret = git_config_rename_section_in_file(given_config_source.file, argv[0], argv[1]); if (ret < 0) return ret; @@ -651,9 +670,9 @@ int cmd_config(int argc, const char **argv, const char *prefix) } else if (actions == ACTION_REMOVE_SECTION) { int ret; - check_blob_write(); + check_write(); check_argc(argc, 1, 1); - ret = git_config_rename_section_in_file(given_config_file, + ret = git_config_rename_section_in_file(given_config_source.file, argv[0], NULL); if (ret < 0) return ret; @@ -671,9 +690,3 @@ int cmd_config(int argc, const char **argv, const char *prefix) return 0; } - -int cmd_repo_config(int argc, const char **argv, const char *prefix) -{ - fprintf(stderr, "WARNING: git repo-config is deprecated in favor of git config.\n"); - return cmd_config(argc, argv, prefix); -} diff --git a/builtin/describe.c b/builtin/describe.c index 6f62109887..9103193b4f 100644 --- a/builtin/describe.c +++ b/builtin/describe.c @@ -1,4 +1,5 @@ #include "cache.h" +#include "lockfile.h" #include "commit.h" #include "tag.h" #include "refs.h" @@ -6,7 +7,7 @@ #include "exec_cmd.h" #include "parse-options.h" #include "diff.h" -#include "hash.h" +#include "hashmap.h" #include "argv-array.h" #define SEEN (1u << 0) @@ -25,7 +26,7 @@ static int longformat; static int first_parent; static int abbrev = -1; /* unspecified */ static int max_candidates = 10; -static struct hash_table names; +static struct hashmap names; static int have_util; static const char *pattern; static int always; @@ -37,7 +38,7 @@ static const char *diff_index_args[] = { }; struct commit_name { - struct commit_name *next; + struct hashmap_entry entry; unsigned char peeled[20]; struct tag *tag; unsigned prio:2; /* annotated tag = 2, tag = 1, head = 0 */ @@ -50,30 +51,15 @@ static const char *prio_names[] = { "head", "lightweight", "annotated", }; -static inline unsigned int hash_sha1(const unsigned char *sha1) +static int commit_name_cmp(const struct commit_name *cn1, + const struct commit_name *cn2, const void *peeled) { - unsigned int hash; - memcpy(&hash, sha1, sizeof(hash)); - return hash; + return hashcmp(cn1->peeled, peeled ? peeled : cn2->peeled); } static inline struct commit_name *find_commit_name(const unsigned char *peeled) { - struct commit_name *n = lookup_hash(hash_sha1(peeled), &names); - while (n && !!hashcmp(peeled, n->peeled)) - n = n->next; - return n; -} - -static int set_util(void *chain, void *data) -{ - struct commit_name *n; - for (n = chain; n; n = n->next) { - struct commit *c = lookup_commit_reference_gently(n->peeled, 1); - if (c) - c->util = n; - } - return 0; + return hashmap_get_from_hash(&names, sha1hash(peeled), peeled); } static int replace_name(struct commit_name *e, @@ -118,16 +104,10 @@ static void add_to_known_names(const char *path, struct tag *tag = NULL; if (replace_name(e, prio, sha1, &tag)) { if (!e) { - void **pos; e = xmalloc(sizeof(struct commit_name)); hashcpy(e->peeled, peeled); - pos = insert_hash(hash_sha1(peeled), e, &names); - if (pos) { - e->next = *pos; - *pos = e; - } else { - e->next = NULL; - } + hashmap_entry_init(e, sha1hash(peeled)); + hashmap_add(&names, e); e->path = NULL; } e->tag = tag; @@ -141,7 +121,7 @@ static void add_to_known_names(const char *path, static int get_name(const char *path, const unsigned char *sha1, int flag, void *cb_data) { - int is_tag = !prefixcmp(path, "refs/tags/"); + int is_tag = starts_with(path, "refs/tags/"); unsigned char peeled[20]; int is_annotated, prio; @@ -150,7 +130,7 @@ static int get_name(const char *path, const unsigned char *sha1, int flag, void return 0; /* Accept only tags that match the pattern, if given */ - if (pattern && (!is_tag || fnmatch(pattern, path + 10, 0))) + if (pattern && (!is_tag || wildmatch(pattern, path + 10, 0, NULL))) return 0; /* Is it annotated? */ @@ -292,7 +272,14 @@ static void describe(const char *arg, int last_one) fprintf(stderr, _("searching to describe %s\n"), arg); if (!have_util) { - for_each_hash(&names, set_util, NULL); + struct hashmap_iter iter; + struct commit *c; + struct commit_name *n = hashmap_iter_first(&names, &iter); + for (; n; n = hashmap_iter_next(&iter)) { + c = lookup_commit_reference_gently(n->peeled, 1); + if (c) + c->util = n; + } have_util = 1; } @@ -463,9 +450,9 @@ int cmd_describe(int argc, const char **argv, const char *prefix) return cmd_name_rev(args.argc, args.argv, prefix); } - init_hash(&names); + hashmap_init(&names, (hashmap_cmp_fn) commit_name_cmp, 0); for_each_rawref(get_name, NULL); - if (!names.nr && !always) + if (!names.size && !always) die(_("No names found, cannot describe anything.")); if (argc == 0) { diff --git a/builtin/diff-tree.c b/builtin/diff-tree.c index be6417d166..1c4ad6223e 100644 --- a/builtin/diff-tree.c +++ b/builtin/diff-tree.c @@ -22,14 +22,10 @@ static int stdin_diff_commit(struct commit *commit, char *line, int len) if (isspace(line[40]) && !get_sha1_hex(line+41, sha1)) { /* Graft the fake parents locally to the commit */ int pos = 41; - struct commit_list **pptr, *parents; + struct commit_list **pptr; /* Free the real parent list */ - for (parents = commit->parents; parents; ) { - struct commit_list *tmp = parents->next; - free(parents); - parents = tmp; - } + free_commit_list(commit->parents); commit->parents = NULL; pptr = &(commit->parents); while (line[pos] && !get_sha1_hex(line + pos, sha1)) { @@ -72,9 +68,7 @@ static int diff_tree_stdin(char *line) line[len-1] = 0; if (get_sha1_hex(line, sha1)) return -1; - obj = lookup_unknown_object(sha1); - if (!obj || !obj->parsed) - obj = parse_object(sha1); + obj = parse_object(sha1); if (!obj) return -1; if (obj->type == OBJ_COMMIT) diff --git a/builtin/diff.c b/builtin/diff.c index fe0cc7f1b5..4326fa56bf 100644 --- a/builtin/diff.c +++ b/builtin/diff.c @@ -4,6 +4,7 @@ * Copyright (c) 2006 Junio C Hamano */ #include "cache.h" +#include "lockfile.h" #include "color.h" #include "commit.h" #include "blob.h" @@ -16,6 +17,9 @@ #include "submodule.h" #include "sha1-array.h" +#define DIFF_NO_INDEX_EXPLICIT 1 +#define DIFF_NO_INDEX_IMPLICIT 2 + struct blobinfo { unsigned char sha1[20]; const char *name; @@ -259,7 +263,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix) struct object_array ent = OBJECT_ARRAY_INIT; int blobs = 0, paths = 0; struct blobinfo blob[2]; - int nongit; + int nongit = 0, no_index = 0; int result = 0; /* @@ -285,14 +289,59 @@ int cmd_diff(int argc, const char **argv, const char *prefix) * Other cases are errors. */ - prefix = setup_git_directory_gently(&nongit); - gitmodules_config(); + /* Were we asked to do --no-index explicitly? */ + for (i = 1; i < argc; i++) { + if (!strcmp(argv[i], "--")) { + i++; + break; + } + if (!strcmp(argv[i], "--no-index")) + no_index = DIFF_NO_INDEX_EXPLICIT; + if (argv[i][0] != '-') + break; + } + + if (!no_index) + prefix = setup_git_directory_gently(&nongit); + + /* + * Treat git diff with at least one path outside of the + * repo the same as if the command would have been executed + * outside of a git repository. In this case it behaves + * the same way as "git diff --no-index <a> <b>", which acts + * as a colourful "diff" replacement. + */ + if (nongit || ((argc == i + 2) && + (!path_inside_repo(prefix, argv[i]) || + !path_inside_repo(prefix, argv[i + 1])))) + no_index = DIFF_NO_INDEX_IMPLICIT; + + if (!no_index) + gitmodules_config(); git_config(git_diff_ui_config, NULL); init_revisions(&rev, prefix); - /* If this is a no-index diff, just run it and exit there. */ - diff_no_index(&rev, argc, argv, nongit, prefix); + if (no_index && argc != i + 2) { + if (no_index == DIFF_NO_INDEX_IMPLICIT) { + /* + * There was no --no-index and there were not two + * paths. It is possible that the user intended + * to do an inside-repository operation. + */ + fprintf(stderr, "Not a git repository\n"); + fprintf(stderr, + "To compare two paths outside a working tree:\n"); + } + /* Give the usage message for non-repository usage and exit. */ + usagef("git diff %s <path> <path>", + no_index == DIFF_NO_INDEX_EXPLICIT ? + "--no-index" : "[--no-index]"); + + } + if (no_index) + /* If this is a no-index diff, just run it and exit there. */ + diff_no_index(&rev, argc, argv, prefix); /* Otherwise, we are doing the usual "git" diff */ rev.diffopt.skip_stat_unmatch = !!diff_auto_refresh_index; diff --git a/builtin/fast-export.c b/builtin/fast-export.c index 78250eab08..b8182c241d 100644 --- a/builtin/fast-export.c +++ b/builtin/fast-export.c @@ -17,6 +17,8 @@ #include "utf8.h" #include "parse-options.h" #include "quote.h" +#include "remote.h" +#include "blob.h" static const char *fast_export_usage[] = { N_("git fast-export [rev-list-opts]"), @@ -31,6 +33,9 @@ static int use_done_feature; static int no_data; static int full_tree; static struct string_list extra_refs = STRING_LIST_INIT_NODUP; +static struct refspec *refspecs; +static int refspecs_nr; +static int anonymize; static int parse_opt_signed_tag_mode(const struct option *opt, const char *arg, int unset) @@ -78,6 +83,76 @@ static int has_unshown_parent(struct commit *commit) return 0; } +struct anonymized_entry { + struct hashmap_entry hash; + const char *orig; + size_t orig_len; + const char *anon; + size_t anon_len; +}; + +static int anonymized_entry_cmp(const void *va, const void *vb, + const void *data) +{ + const struct anonymized_entry *a = va, *b = vb; + return a->orig_len != b->orig_len || + memcmp(a->orig, b->orig, a->orig_len); +} + +/* + * Basically keep a cache of X->Y so that we can repeatedly replace + * the same anonymized string with another. The actual generation + * is farmed out to the generate function. + */ +static const void *anonymize_mem(struct hashmap *map, + void *(*generate)(const void *, size_t *), + const void *orig, size_t *len) +{ + struct anonymized_entry key, *ret; + + if (!map->cmpfn) + hashmap_init(map, anonymized_entry_cmp, 0); + + hashmap_entry_init(&key, memhash(orig, *len)); + key.orig = orig; + key.orig_len = *len; + ret = hashmap_get(map, &key, NULL); + + if (!ret) { + ret = xmalloc(sizeof(*ret)); + hashmap_entry_init(&ret->hash, key.hash.hash); + ret->orig = xstrdup(orig); + ret->orig_len = *len; + ret->anon = generate(orig, len); + ret->anon_len = *len; + hashmap_put(map, ret); + } + + *len = ret->anon_len; + return ret->anon; +} + +/* + * We anonymize each component of a path individually, + * so that paths a/b and a/c will share a common root. + * The paths are cached via anonymize_mem so that repeated + * lookups for "a" will yield the same value. + */ +static void anonymize_path(struct strbuf *out, const char *path, + struct hashmap *map, + void *(*generate)(const void *, size_t *)) +{ + while (*path) { + const char *end_of_component = strchrnul(path, '/'); + size_t len = end_of_component - path; + const char *c = anonymize_mem(map, generate, path, &len); + strbuf_add(out, c, len); + path = end_of_component; + if (*path) + strbuf_addch(out, *path++); + } +} + /* Since intptr_t is C99, we do not use it here */ static inline uint32_t *mark_to_ptr(uint32_t mark) { @@ -116,6 +191,26 @@ static void show_progress(void) printf("progress %d objects\n", counter); } +/* + * Ideally we would want some transformation of the blob data here + * that is unreversible, but would still be the same size and have + * the same data relationship to other blobs (so that we get the same + * delta and packing behavior as the original). But the first and last + * requirements there are probably mutually exclusive, so let's take + * the easy way out for now, and just generate arbitrary content. + * + * There's no need to cache this result with anonymize_mem, since + * we already handle blob content caching with marks. + */ +static char *anonymize_blob(unsigned long *size) +{ + static int counter; + struct strbuf out = STRBUF_INIT; + strbuf_addf(&out, "anonymous blob %d", counter++); + *size = out.len; + return strbuf_detach(&out, NULL); +} + static void export_blob(const unsigned char *sha1) { unsigned long size; @@ -134,12 +229,19 @@ static void export_blob(const unsigned char *sha1) if (object && object->flags & SHOWN) return; - buf = read_sha1_file(sha1, &type, &size); - if (!buf) - die ("Could not read blob %s", sha1_to_hex(sha1)); - if (check_sha1_signature(sha1, buf, size, typename(type)) < 0) - die("sha1 mismatch in blob %s", sha1_to_hex(sha1)); - object = parse_object_buffer(sha1, type, size, buf, &eaten); + if (anonymize) { + buf = anonymize_blob(&size); + object = (struct object *)lookup_blob(sha1); + eaten = 0; + } else { + buf = read_sha1_file(sha1, &type, &size); + if (!buf) + die ("Could not read blob %s", sha1_to_hex(sha1)); + if (check_sha1_signature(sha1, buf, size, typename(type)) < 0) + die("sha1 mismatch in blob %s", sha1_to_hex(sha1)); + object = parse_object_buffer(sha1, type, size, buf, &eaten); + } + if (!object) die("Could not read blob %s", sha1_to_hex(sha1)); @@ -187,7 +289,7 @@ static int depth_first(const void *a_, const void *b_) return (a->status == 'R') - (b->status == 'R'); } -static void print_path(const char *path) +static void print_path_1(const char *path) { int need_quote = quote_c_style(path, NULL, NULL, 0); if (need_quote) @@ -198,6 +300,43 @@ static void print_path(const char *path) printf("%s", path); } +static void *anonymize_path_component(const void *path, size_t *len) +{ + static int counter; + struct strbuf out = STRBUF_INIT; + strbuf_addf(&out, "path%d", counter++); + return strbuf_detach(&out, len); +} + +static void print_path(const char *path) +{ + if (!anonymize) + print_path_1(path); + else { + static struct hashmap paths; + static struct strbuf anon = STRBUF_INIT; + + anonymize_path(&anon, path, &paths, anonymize_path_component); + print_path_1(anon.buf); + strbuf_reset(&anon); + } +} + +static void *generate_fake_sha1(const void *old, size_t *len) +{ + static uint32_t counter = 1; /* avoid null sha1 */ + unsigned char *out = xcalloc(20, 1); + put_be32(out + 16, counter++); + return out; +} + +static const unsigned char *anonymize_sha1(const unsigned char *sha1) +{ + static struct hashmap sha1s; + size_t len = 20; + return anonymize_mem(&sha1s, generate_fake_sha1, sha1, &len); +} + static void show_filemodify(struct diff_queue_struct *q, struct diff_options *options, void *data) { @@ -242,7 +381,9 @@ static void show_filemodify(struct diff_queue_struct *q, */ if (no_data || S_ISGITLINK(spec->mode)) printf("M %06o %s ", spec->mode, - sha1_to_hex(spec->sha1)); + sha1_to_hex(anonymize ? + anonymize_sha1(spec->sha1) : + spec->sha1)); else { struct object *object = lookup_object(spec->sha1); printf("M %06o :%d ", spec->mode, @@ -276,19 +417,130 @@ static const char *find_encoding(const char *begin, const char *end) return bol; } +static void *anonymize_ref_component(const void *old, size_t *len) +{ + static int counter; + struct strbuf out = STRBUF_INIT; + strbuf_addf(&out, "ref%d", counter++); + return strbuf_detach(&out, len); +} + +static const char *anonymize_refname(const char *refname) +{ + /* + * If any of these prefixes is found, we will leave it intact + * so that tags remain tags and so forth. + */ + static const char *prefixes[] = { + "refs/heads/", + "refs/tags/", + "refs/remotes/", + "refs/" + }; + static struct hashmap refs; + static struct strbuf anon = STRBUF_INIT; + int i; + + /* + * We also leave "master" as a special case, since it does not reveal + * anything interesting. + */ + if (!strcmp(refname, "refs/heads/master")) + return refname; + + strbuf_reset(&anon); + for (i = 0; i < ARRAY_SIZE(prefixes); i++) { + if (skip_prefix(refname, prefixes[i], &refname)) { + strbuf_addstr(&anon, prefixes[i]); + break; + } + } + + anonymize_path(&anon, refname, &refs, anonymize_ref_component); + return anon.buf; +} + +/* + * We do not even bother to cache commit messages, as they are unlikely + * to be repeated verbatim, and it is not that interesting when they are. + */ +static char *anonymize_commit_message(const char *old) +{ + static int counter; + return xstrfmt("subject %d\n\nbody\n", counter++); +} + +static struct hashmap idents; +static void *anonymize_ident(const void *old, size_t *len) +{ + static int counter; + struct strbuf out = STRBUF_INIT; + strbuf_addf(&out, "User %d <user%d@example.com>", counter, counter); + counter++; + return strbuf_detach(&out, len); +} + +/* + * Our strategy here is to anonymize the names and email addresses, + * but keep timestamps intact, as they influence things like traversal + * order (and by themselves should not be too revealing). + */ +static void anonymize_ident_line(const char **beg, const char **end) +{ + static struct strbuf buffers[] = { STRBUF_INIT, STRBUF_INIT }; + static unsigned which_buffer; + + struct strbuf *out; + struct ident_split split; + const char *end_of_header; + + out = &buffers[which_buffer++]; + which_buffer %= ARRAY_SIZE(buffers); + strbuf_reset(out); + + /* skip "committer", "author", "tagger", etc */ + end_of_header = strchr(*beg, ' '); + if (!end_of_header) + die("BUG: malformed line fed to anonymize_ident_line: %.*s", + (int)(*end - *beg), *beg); + end_of_header++; + strbuf_add(out, *beg, end_of_header - *beg); + + if (!split_ident_line(&split, end_of_header, *end - end_of_header) && + split.date_begin) { + const char *ident; + size_t len; + + len = split.mail_end - split.name_begin; + ident = anonymize_mem(&idents, anonymize_ident, + split.name_begin, &len); + strbuf_add(out, ident, len); + strbuf_addch(out, ' '); + strbuf_add(out, split.date_begin, split.tz_end - split.date_begin); + } else { + strbuf_addstr(out, "Malformed Ident <malformed@example.com> 0 -0000"); + } + + *beg = out->buf; + *end = out->buf + out->len; +} + static void handle_commit(struct commit *commit, struct rev_info *rev) { int saved_output_format = rev->diffopt.output_format; + const char *commit_buffer; const char *author, *author_end, *committer, *committer_end; const char *encoding, *message; char *reencoded = NULL; struct commit_list *p; + const char *refname; int i; rev->diffopt.output_format = DIFF_FORMAT_CALLBACK; - parse_commit(commit); - author = strstr(commit->buffer, "\nauthor "); + parse_commit_or_die(commit); + commit_buffer = get_commit_buffer(commit, NULL); + author = strstr(commit_buffer, "\nauthor "); if (!author) die ("Could not find author in commit %s", sha1_to_hex(commit->object.sha1)); @@ -308,7 +560,7 @@ static void handle_commit(struct commit *commit, struct rev_info *rev) if (commit->parents && get_object_mark(&commit->parents->item->object) != 0 && !full_tree) { - parse_commit(commit->parents->item); + parse_commit_or_die(commit->parents->item); diff_tree_sha1(commit->parents->item->tree->object.sha1, commit->tree->object.sha1, "", &rev->diffopt); } @@ -321,13 +573,22 @@ static void handle_commit(struct commit *commit, struct rev_info *rev) if (!S_ISGITLINK(diff_queued_diff.queue[i]->two->mode)) export_blob(diff_queued_diff.queue[i]->two->sha1); + refname = commit->util; + if (anonymize) { + refname = anonymize_refname(refname); + anonymize_ident_line(&committer, &committer_end); + anonymize_ident_line(&author, &author_end); + } + mark_next_object(&commit->object); - if (!is_encoding_utf8(encoding)) + if (anonymize) + reencoded = anonymize_commit_message(message); + else if (!is_encoding_utf8(encoding)) reencoded = reencode_string(message, "UTF-8", encoding); if (!commit->parents) - printf("reset %s\n", (const char*)commit->util); + printf("reset %s\n", refname); printf("commit %s\nmark :%"PRIu32"\n%.*s\n%.*s\ndata %u\n%s", - (const char *)commit->util, last_idnum, + refname, last_idnum, (int)(author_end - author), author, (int)(committer_end - committer), committer, (unsigned)(reencoded @@ -335,6 +596,7 @@ static void handle_commit(struct commit *commit, struct rev_info *rev) ? strlen(message) : 0), reencoded ? reencoded : message ? message : ""); free(reencoded); + unuse_commit_buffer(commit, commit_buffer); for (i = 0, p = commit->parents; p; p = p->next) { int mark = get_object_mark(&p->item->object); @@ -357,6 +619,14 @@ static void handle_commit(struct commit *commit, struct rev_info *rev) show_progress(); } +static void *anonymize_tag(const void *old, size_t *len) +{ + static int counter; + struct strbuf out = STRBUF_INIT; + strbuf_addf(&out, "tag message %d", counter++); + return strbuf_detach(&out, len); +} + static void handle_tail(struct object_array *commits, struct rev_info *revs) { struct commit *commit; @@ -413,6 +683,17 @@ static void handle_tag(const char *name, struct tag *tag) } else { tagger++; tagger_end = strchrnul(tagger, '\n'); + if (anonymize) + anonymize_ident_line(&tagger, &tagger_end); + } + + if (anonymize) { + name = anonymize_refname(name); + if (message) { + static struct hashmap tags; + message = anonymize_mem(&tags, anonymize_tag, + message, &message_size); + } } /* handle signed tags */ @@ -476,7 +757,7 @@ static void handle_tag(const char *name, struct tag *tag) } } - if (!prefixcmp(name, "refs/tags/")) + if (starts_with(name, "refs/tags/")) name += 10; printf("tag %s\nfrom :%d\n%.*s%sdata %d\n%.*s\n", name, tagged_mark, @@ -525,6 +806,15 @@ static void get_tags_and_duplicates(struct rev_cmdline_info *info) if (dwim_ref(e->name, strlen(e->name), sha1, &full_name) != 1) continue; + if (refspecs) { + char *private; + private = apply_refspecs(refspecs, refspecs_nr, full_name); + if (private) { + free(full_name); + full_name = private; + } + } + commit = get_commit(e, full_name); if (!commit) { warning("%s: Unexpected object of type %s, skipping.", @@ -569,6 +859,8 @@ static void handle_tags_and_duplicates(void) handle_tag(name, (struct tag *)object); break; case OBJ_COMMIT: + if (anonymize) + name = anonymize_refname(name); /* create refs pointing to already seen commits */ commit = (struct commit *)object; printf("reset %s\nfrom :%d\n\n", name, @@ -661,6 +953,19 @@ static void import_marks(char *input_file) fclose(f); } +static void handle_deletes(void) +{ + int i; + for (i = 0; i < refspecs_nr; i++) { + struct refspec *refspec = &refspecs[i]; + if (*refspec->src) + continue; + + printf("reset %s\nfrom %s\n\n", + refspec->dst, sha1_to_hex(null_sha1)); + } +} + int cmd_fast_export(int argc, const char **argv, const char *prefix) { struct rev_info revs; @@ -668,6 +973,7 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix) struct commit *commit; char *export_filename = NULL, *import_filename = NULL; uint32_t lastimportid; + struct string_list refspecs_list = STRING_LIST_INIT_NODUP; struct option options[] = { OPT_INTEGER(0, "progress", &progress, N_("show progress after <n> objects")), @@ -688,6 +994,9 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix) OPT_BOOL(0, "use-done-feature", &use_done_feature, N_("Use the done feature to terminate the stream")), OPT_BOOL(0, "no-data", &no_data, N_("Skip output of blob data")), + OPT_STRING_LIST(0, "refspec", &refspecs_list, N_("refspec"), + N_("Apply refspec to exported refs")), + OPT_BOOL(0, "anonymize", &anonymize, N_("anonymize output")), OPT_END() }; @@ -701,11 +1010,27 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix) revs.topo_order = 1; revs.show_source = 1; revs.rewrite_parents = 1; + argc = parse_options(argc, argv, prefix, options, fast_export_usage, + PARSE_OPT_KEEP_ARGV0 | PARSE_OPT_KEEP_UNKNOWN); argc = setup_revisions(argc, argv, &revs, NULL); - argc = parse_options(argc, argv, prefix, options, fast_export_usage, 0); if (argc > 1) usage_with_options (fast_export_usage, options); + if (refspecs_list.nr) { + const char **refspecs_str; + int i; + + refspecs_str = xmalloc(sizeof(*refspecs_str) * refspecs_list.nr); + for (i = 0; i < refspecs_list.nr; i++) + refspecs_str[i] = refspecs_list.items[i].string; + + refspecs_nr = refspecs_list.nr; + refspecs = parse_fetch_refspec(refspecs_nr, refspecs_str); + + string_list_clear(&refspecs_list, 1); + free(refspecs_str); + } + if (use_done_feature) printf("feature done\n"); @@ -733,6 +1058,7 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix) } handle_tags_and_duplicates(); + handle_deletes(); if (export_filename && lastimportid != last_idnum) export_marks(export_filename); @@ -740,5 +1066,7 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix) if (use_done_feature) printf("done\n"); + free_refspec(refspecs_nr, refspecs); + return 0; } diff --git a/builtin/fetch-pack.c b/builtin/fetch-pack.c index 758b5acd55..1262b405f8 100644 --- a/builtin/fetch-pack.c +++ b/builtin/fetch-pack.c @@ -3,6 +3,7 @@ #include "fetch-pack.h" #include "remote.h" #include "connect.h" +#include "sha1-array.h" static const char fetch_pack_usage[] = "git fetch-pack [--all] [--stdin] [--quiet|-q] [--keep|-k] [--thin] " @@ -13,6 +14,13 @@ static void add_sought_entry_mem(struct ref ***sought, int *nr, int *alloc, const char *name, int namelen) { 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; + } memcpy(ref->name, name, namelen); ref->name[namelen] = '\0'; @@ -39,6 +47,7 @@ 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; packet_trace_identity("fetch-pack"); @@ -48,11 +57,11 @@ 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 (!prefixcmp(arg, "--upload-pack=")) { + if (starts_with(arg, "--upload-pack=")) { args.uploadpack = arg + 14; continue; } - if (!prefixcmp(arg, "--exec=")) { + if (starts_with(arg, "--exec=")) { args.uploadpack = arg + 7; continue; } @@ -89,7 +98,7 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix) args.verbose = 1; continue; } - if (!prefixcmp(arg, "--depth=")) { + if (starts_with(arg, "--depth=")) { args.depth = strtol(arg + 8, NULL, 0); continue; } @@ -110,6 +119,14 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix) args.check_self_contained_and_connected = 1; continue; } + if (!strcmp("--cloning", arg)) { + args.cloning = 1; + continue; + } + if (!strcmp("--update-shallow", arg)) { + args.update_shallow = 1; + continue; + } usage(fetch_pack_usage); } @@ -158,10 +175,10 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix) if (!conn) return args.diag_url ? 0 : 1; } - get_remote_heads(fd[0], NULL, 0, &ref, 0, NULL); + get_remote_heads(fd[0], NULL, 0, &ref, 0, NULL, &shallow); - ref = fetch_pack(&args, fd, conn, ref, dest, - sought, nr_sought, pack_lockfile_ptr); + ref = fetch_pack(&args, fd, conn, ref, dest, sought, nr_sought, + &shallow, pack_lockfile_ptr); if (pack_lockfile) { printf("lock %s\n", pack_lockfile); fflush(stdout); diff --git a/builtin/fetch.c b/builtin/fetch.c index 5bd00d064a..159fb7e916 100644 --- a/builtin/fetch.c +++ b/builtin/fetch.c @@ -36,7 +36,7 @@ static int prune = -1; /* unspecified */ static int all, append, dry_run, force, keep, multiple, update_head_ok, verbosity; static int progress = -1, recurse_submodules = RECURSE_SUBMODULES_DEFAULT; -static int tags = TAGS_DEFAULT, unshallow; +static int tags = TAGS_DEFAULT, unshallow, update_shallow; static const char *depth; static const char *upload_pack; static struct strbuf default_rla = STRBUF_INIT; @@ -44,6 +44,9 @@ static struct transport *gtransport; static struct transport *gsecondary; static const char *submodule_prefix = ""; static const char *recurse_submodules_default; +static int shown_url = 0; +static int refmap_alloc, refmap_nr; +static const char **refmap_array; static int option_parse_recurse_submodules(const struct option *opt, const char *arg, int unset) @@ -68,6 +71,19 @@ static int git_fetch_config(const char *k, const char *v, void *cb) return 0; } +static int parse_refmap_arg(const struct option *opt, const char *arg, int unset) +{ + ALLOC_GROW(refmap_array, refmap_nr + 1, refmap_alloc); + + /* + * "git fetch --refmap='' origin foo" + * can be used to tell the command not to store anywhere + */ + if (*arg) + refmap_array[refmap_nr++] = arg; + return 0; +} + static struct option builtin_fetch_options[] = { OPT__VERBOSITY(&verbosity), OPT_BOOL(0, "all", &all, @@ -104,6 +120,10 @@ static struct option builtin_fetch_options[] = { { OPTION_STRING, 0, "recurse-submodules-default", &recurse_submodules_default, NULL, N_("default mode for recursion"), PARSE_OPT_HIDDEN }, + OPT_BOOL(0, "update-shallow", &update_shallow, + N_("accept refs that update .git/shallow")), + { OPTION_CALLBACK, 0, "refmap", NULL, N_("refmap"), + N_("specify fetch refmap"), PARSE_OPT_NONEG, parse_refmap_arg }, OPT_END() }; @@ -160,48 +180,168 @@ static void add_merge_config(struct ref **head, } } +static int add_existing(const char *refname, const unsigned char *sha1, + int flag, void *cbdata) +{ + struct string_list *list = (struct string_list *)cbdata; + struct string_list_item *item = string_list_insert(list, refname); + item->util = xmalloc(20); + hashcpy(item->util, sha1); + return 0; +} + +static int will_fetch(struct ref **head, const unsigned char *sha1) +{ + struct ref *rm = *head; + while (rm) { + if (!hashcmp(rm->old_sha1, sha1)) + return 1; + rm = rm->next; + } + return 0; +} + static void find_non_local_tags(struct transport *transport, struct ref **head, - struct ref ***tail); + struct ref ***tail) +{ + struct string_list existing_refs = STRING_LIST_INIT_DUP; + struct string_list remote_refs = STRING_LIST_INIT_NODUP; + const struct ref *ref; + struct string_list_item *item = NULL; + + for_each_ref(add_existing, &existing_refs); + for (ref = transport_get_remote_refs(transport); ref; ref = ref->next) { + if (!starts_with(ref->name, "refs/tags/")) + continue; + + /* + * The peeled ref always follows the matching base + * ref, so if we see a peeled ref that we don't want + * to fetch then we can mark the ref entry in the list + * as one to ignore by setting util to NULL. + */ + if (ends_with(ref->name, "^{}")) { + if (item && !has_sha1_file(ref->old_sha1) && + !will_fetch(head, ref->old_sha1) && + !has_sha1_file(item->util) && + !will_fetch(head, item->util)) + item->util = NULL; + item = NULL; + continue; + } + + /* + * If item is non-NULL here, then we previously saw a + * ref not followed by a peeled reference, so we need + * to check if it is a lightweight tag that we want to + * fetch. + */ + if (item && !has_sha1_file(item->util) && + !will_fetch(head, item->util)) + item->util = NULL; + + item = NULL; + + /* skip duplicates and refs that we already have */ + if (string_list_has_string(&remote_refs, ref->name) || + string_list_has_string(&existing_refs, ref->name)) + continue; + + item = string_list_insert(&remote_refs, ref->name); + item->util = (void *)ref->old_sha1; + } + string_list_clear(&existing_refs, 1); + + /* + * We may have a final lightweight tag that needs to be + * checked to see if it needs fetching. + */ + if (item && !has_sha1_file(item->util) && + !will_fetch(head, item->util)) + item->util = NULL; + + /* + * For all the tags in the remote_refs string list, + * add them to the list of refs to be fetched + */ + for_each_string_list_item(item, &remote_refs) { + /* Unless we have already decided to ignore this item... */ + if (item->util) + { + struct ref *rm = alloc_ref(item->string); + rm->peer_ref = alloc_ref(item->string); + hashcpy(rm->old_sha1, item->util); + **tail = rm; + *tail = &rm->next; + } + } + + string_list_clear(&remote_refs, 0); +} static struct ref *get_ref_map(struct transport *transport, - struct refspec *refs, int ref_count, int tags, - int *autotags) + struct refspec *refspecs, int refspec_count, + int tags, int *autotags) { int i; struct ref *rm; struct ref *ref_map = NULL; struct ref **tail = &ref_map; + /* opportunistically-updated references: */ + struct ref *orefs = NULL, **oref_tail = &orefs; + const struct ref *remote_refs = transport_get_remote_refs(transport); - if (ref_count || tags == TAGS_SET) { - struct ref **old_tail; + if (refspec_count) { + struct refspec *fetch_refspec; + int fetch_refspec_nr; - for (i = 0; i < ref_count; i++) { - get_fetch_map(remote_refs, &refs[i], &tail, 0); - if (refs[i].dst && refs[i].dst[0]) + for (i = 0; i < refspec_count; i++) { + get_fetch_map(remote_refs, &refspecs[i], &tail, 0); + if (refspecs[i].dst && refspecs[i].dst[0]) *autotags = 1; } - /* Merge everything on the command line, but not --tags */ + /* Merge everything on the command line (but not --tags) */ for (rm = ref_map; rm; rm = rm->next) rm->fetch_head_status = FETCH_HEAD_MERGE; - if (tags == TAGS_SET) - get_fetch_map(remote_refs, tag_refspec, &tail, 0); /* - * For any refs that we happen to be fetching via command-line - * arguments, take the opportunity to update their configured - * counterparts. However, we do not want to mention these - * entries in FETCH_HEAD at all, as they would simply be - * duplicates of existing entries. + * For any refs that we happen to be fetching via + * command-line arguments, the destination ref might + * have been missing or have been different than the + * remote-tracking ref that would be derived from the + * configured refspec. In these cases, we want to + * take the opportunity to update their configured + * remote-tracking reference. However, we do not want + * to mention these entries in FETCH_HEAD at all, as + * they would simply be duplicates of existing + * entries, so we set them FETCH_HEAD_IGNORE below. + * + * We compute these entries now, based only on the + * refspecs specified on the command line. But we add + * them to the list following the refspecs resulting + * from the tags option so that one of the latter, + * which has FETCH_HEAD_NOT_FOR_MERGE, is not removed + * by ref_remove_duplicates() in favor of one of these + * opportunistic entries with FETCH_HEAD_IGNORE. */ - old_tail = tail; - for (i = 0; i < transport->remote->fetch_refspec_nr; i++) - get_fetch_map(ref_map, &transport->remote->fetch[i], - &tail, 1); - for (rm = *old_tail; rm; rm = rm->next) - rm->fetch_head_status = FETCH_HEAD_IGNORE; + if (refmap_array) { + fetch_refspec = parse_fetch_refspec(refmap_nr, refmap_array); + fetch_refspec_nr = refmap_nr; + } else { + fetch_refspec = transport->remote->fetch; + fetch_refspec_nr = transport->remote->fetch_refspec_nr; + } + + for (i = 0; i < fetch_refspec_nr; i++) + get_fetch_map(ref_map, &fetch_refspec[i], &oref_tail, 1); + + if (tags == TAGS_SET) + get_fetch_map(remote_refs, tag_refspec, &tail, 0); + } else if (refmap_array) { + die("--refmap option is only meaningful with command-line refspec(s)."); } else { /* Use the defaults */ struct remote *remote = transport->remote; @@ -238,11 +378,21 @@ static struct ref *get_ref_map(struct transport *transport, tail = &ref_map->next; } } - if (tags == TAGS_DEFAULT && *autotags) + + if (tags == TAGS_SET) + /* also fetch all tags */ + get_fetch_map(remote_refs, tag_refspec, &tail, 0); + else if (tags == TAGS_DEFAULT && *autotags) find_non_local_tags(transport, &ref_map, &tail); - ref_remove_duplicates(ref_map); - return ref_map; + /* Now append any refs to be updated opportunistically: */ + *tail = orefs; + for (rm = orefs; rm; rm = rm->next) { + rm->fetch_head_status = FETCH_HEAD_IGNORE; + tail = &rm->next; + } + + return ref_remove_duplicates(ref_map); } #define STORE_REF_ERROR_OTHER 1 @@ -313,7 +463,7 @@ static int update_local_ref(struct ref *ref, } if (!is_null_sha1(ref->old_sha1) && - !prefixcmp(ref->name, "refs/tags/")) { + starts_with(ref->name, "refs/tags/")) { int r; r = s_update_ref("updating tag", ref, 0); strbuf_addf(display, "%c %-*s %-*s -> %s%s", @@ -336,10 +486,10 @@ static int update_local_ref(struct ref *ref, * more likely to follow a standard layout. */ const char *name = remote_ref ? remote_ref->name : ""; - if (!prefixcmp(name, "refs/tags/")) { + if (starts_with(name, "refs/tags/")) { msg = "storing tag"; what = _("[new tag]"); - } else if (!prefixcmp(name, "refs/heads/")) { + } else if (starts_with(name, "refs/heads/")) { msg = "storing head"; what = _("[new branch]"); } else { @@ -405,6 +555,8 @@ static int iterate_ref_map(void *cb_data, unsigned char sha1[20]) struct ref **rm = cb_data; struct ref *ref = *rm; + while (ref && ref->status == REF_STATUS_REJECT_SHALLOW) + ref = ref->next; if (!ref) return -1; /* end of the list */ *rm = ref->next; @@ -417,7 +569,7 @@ static int store_updated_refs(const char *raw_url, const char *remote_name, { FILE *fp; struct commit *commit; - int url_len, i, shown_url = 0, rc = 0; + int url_len, i, rc = 0; struct strbuf note = STRBUF_INIT; const char *what, *kind; struct ref *rm; @@ -451,6 +603,13 @@ static int store_updated_refs(const char *raw_url, const char *remote_name, struct ref *ref = NULL; const char *merge_status_marker = ""; + if (rm->status == REF_STATUS_REJECT_SHALLOW) { + if (want_status == FETCH_HEAD_MERGE) + warning(_("reject %s because shallow roots are not allowed to be updated"), + rm->peer_ref ? rm->peer_ref->name : rm->name); + continue; + } + commit = lookup_commit_reference_gently(rm->old_sha1, 1); if (!commit) rm->fetch_head_status = FETCH_HEAD_NOT_FOR_MERGE; @@ -471,15 +630,15 @@ static int store_updated_refs(const char *raw_url, const char *remote_name, kind = ""; what = ""; } - else if (!prefixcmp(rm->name, "refs/heads/")) { + else if (starts_with(rm->name, "refs/heads/")) { kind = "branch"; what = rm->name + 11; } - else if (!prefixcmp(rm->name, "refs/tags/")) { + else if (starts_with(rm->name, "refs/tags/")) { kind = "tag"; what = rm->name + 10; } - else if (!prefixcmp(rm->name, "refs/remotes/")) { + else if (starts_with(rm->name, "refs/remotes/")) { kind = "remote-tracking branch"; what = rm->name + 13; } @@ -590,17 +749,36 @@ static int fetch_refs(struct transport *transport, struct ref *ref_map) return ret; } -static int prune_refs(struct refspec *refs, int ref_count, struct ref *ref_map) +static int prune_refs(struct refspec *refs, int ref_count, struct ref *ref_map, + const char *raw_url) { - int result = 0; + int url_len, i, result = 0; struct ref *ref, *stale_refs = get_stale_heads(refs, ref_count, ref_map); + char *url; const char *dangling_msg = dry_run ? _(" (%s will become dangling)") : _(" (%s has become dangling)"); + if (raw_url) + url = transport_anonymize_url(raw_url); + else + url = xstrdup("foreign"); + + url_len = strlen(url); + for (i = url_len - 1; url[i] == '/' && 0 <= i; i--) + ; + + url_len = i + 1; + if (4 < i && !strncmp(".git", url + i - 3, 4)) + url_len = i - 3; + 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]")), @@ -608,110 +786,11 @@ static int prune_refs(struct refspec *refs, int ref_count, struct ref *ref_map) warn_dangling_symref(stderr, dangling_msg, ref->name); } } + free(url); free_refs(stale_refs); return result; } -static int add_existing(const char *refname, const unsigned char *sha1, - int flag, void *cbdata) -{ - struct string_list *list = (struct string_list *)cbdata; - struct string_list_item *item = string_list_insert(list, refname); - item->util = xmalloc(20); - hashcpy(item->util, sha1); - return 0; -} - -static int will_fetch(struct ref **head, const unsigned char *sha1) -{ - struct ref *rm = *head; - while (rm) { - if (!hashcmp(rm->old_sha1, sha1)) - return 1; - rm = rm->next; - } - return 0; -} - -static void find_non_local_tags(struct transport *transport, - struct ref **head, - struct ref ***tail) -{ - struct string_list existing_refs = STRING_LIST_INIT_DUP; - struct string_list remote_refs = STRING_LIST_INIT_NODUP; - const struct ref *ref; - struct string_list_item *item = NULL; - - for_each_ref(add_existing, &existing_refs); - for (ref = transport_get_remote_refs(transport); ref; ref = ref->next) { - if (prefixcmp(ref->name, "refs/tags/")) - continue; - - /* - * The peeled ref always follows the matching base - * ref, so if we see a peeled ref that we don't want - * to fetch then we can mark the ref entry in the list - * as one to ignore by setting util to NULL. - */ - if (!suffixcmp(ref->name, "^{}")) { - if (item && !has_sha1_file(ref->old_sha1) && - !will_fetch(head, ref->old_sha1) && - !has_sha1_file(item->util) && - !will_fetch(head, item->util)) - item->util = NULL; - item = NULL; - continue; - } - - /* - * If item is non-NULL here, then we previously saw a - * ref not followed by a peeled reference, so we need - * to check if it is a lightweight tag that we want to - * fetch. - */ - if (item && !has_sha1_file(item->util) && - !will_fetch(head, item->util)) - item->util = NULL; - - item = NULL; - - /* skip duplicates and refs that we already have */ - if (string_list_has_string(&remote_refs, ref->name) || - string_list_has_string(&existing_refs, ref->name)) - continue; - - item = string_list_insert(&remote_refs, ref->name); - item->util = (void *)ref->old_sha1; - } - string_list_clear(&existing_refs, 1); - - /* - * We may have a final lightweight tag that needs to be - * checked to see if it needs fetching. - */ - if (item && !has_sha1_file(item->util) && - !will_fetch(head, item->util)) - item->util = NULL; - - /* - * For all the tags in the remote_refs string list, - * add them to the list of refs to be fetched - */ - for_each_string_list_item(item, &remote_refs) { - /* Unless we have already decided to ignore this item... */ - if (item->util) - { - struct ref *rm = alloc_ref(item->string); - rm->peer_ref = alloc_ref(item->string); - hashcpy(rm->old_sha1, item->util); - **tail = rm; - *tail = &rm->next; - } - } - - string_list_clear(&remote_refs, 0); -} - static void check_not_current_branch(struct ref *ref_map) { struct branch *current_branch = branch_get(NULL); @@ -759,6 +838,8 @@ static struct transport *prepare_transport(struct remote *remote) set_option(transport, TRANS_OPT_KEEP, "yes"); if (depth) set_option(transport, TRANS_OPT_DEPTH, depth); + if (update_shallow) + set_option(transport, TRANS_OPT_UPDATE_SHALLOW, "yes"); return transport; } @@ -824,39 +905,26 @@ static int do_fetch(struct transport *transport, if (tags == TAGS_DEFAULT && autotags) transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, "1"); - if (fetch_refs(transport, ref_map)) { - free_refs(ref_map); - retcode = 1; - goto cleanup; - } if (prune) { /* - * If --tags was specified, pretend that the user gave us - * the canonical tags refspec + * We only prune based on refspecs specified + * explicitly (via command line or configuration); we + * don't care whether --tags was specified. */ - if (tags == TAGS_SET) { - const char *tags_str = "refs/tags/*:refs/tags/*"; - struct refspec *tags_refspec, *refspec; - - /* Copy the refspec and add the tags to it */ - refspec = xcalloc(ref_count + 1, sizeof(struct refspec)); - tags_refspec = parse_fetch_refspec(1, &tags_str); - memcpy(refspec, refs, ref_count * sizeof(struct refspec)); - memcpy(&refspec[ref_count], tags_refspec, sizeof(struct refspec)); - ref_count++; - - prune_refs(refspec, ref_count, ref_map); - - ref_count--; - /* The rest of the strings belong to fetch_one */ - free_refspec(1, tags_refspec); - free(refspec); - } else if (ref_count) { - prune_refs(refs, ref_count, ref_map); + if (ref_count) { + prune_refs(refs, ref_count, ref_map, transport->url); } else { - prune_refs(transport->remote->fetch, transport->remote->fetch_refspec_nr, ref_map); + prune_refs(transport->remote->fetch, + transport->remote->fetch_refspec_nr, + ref_map, + transport->url); } } + if (fetch_refs(transport, ref_map)) { + free_refs(ref_map); + retcode = 1; + goto cleanup; + } free_refs(ref_map); /* if neither --no-tags nor --tags was specified, do automated tag @@ -892,7 +960,7 @@ static int get_remote_group(const char *key, const char *value, void *priv) { struct remote_group_data *g = priv; - if (!prefixcmp(key, "remotes.") && + if (starts_with(key, "remotes.") && !strcmp(key + 8, g->name)) { /* split list by white space */ int space = strcspn(value, " \t\n"); @@ -930,8 +998,8 @@ static void add_options_to_argv(struct argv_array *argv) { if (dry_run) argv_array_push(argv, "--dry-run"); - if (prune > 0) - argv_array_push(argv, "--prune"); + if (prune != -1) + argv_array_push(argv, prune ? "--prune" : "--no-prune"); if (update_head_ok) argv_array_push(argv, "--update-head-ok"); if (force) @@ -987,7 +1055,6 @@ static int fetch_multiple(struct string_list *list) static int fetch_one(struct remote *remote, int argc, const char **argv) { - int i; static const char **refs = NULL; struct refspec *refspec; int ref_nr = 0; @@ -1011,19 +1078,15 @@ 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 *)); for (i = 0; i < argc; i++) { if (!strcmp(argv[i], "tag")) { - char *ref; i++; if (i >= argc) die(_("You need to specify a tag name.")); - ref = xmalloc(strlen(argv[i]) * 2 + 22); - strcpy(ref, "refs/tags/"); - strcat(ref, argv[i]); - strcat(ref, ":refs/tags/"); - strcat(ref, argv[i]); - refs[j++] = ref; + refs[j++] = xstrfmt("refs/tags/%s:refs/tags/%s", + argv[i], argv[i]); } else refs[j++] = argv[i]; } @@ -1047,9 +1110,7 @@ int cmd_fetch(int argc, const char **argv, const char *prefix) struct string_list list = STRING_LIST_INIT_NODUP; struct remote *remote; int result = 0; - static const char *argv_gc_auto[] = { - "gc", "--auto", NULL, - }; + struct argv_array argv_gc_auto = ARGV_ARRAY_INIT; packet_trace_identity("fetch"); @@ -1135,7 +1196,11 @@ int cmd_fetch(int argc, const char **argv, const char *prefix) list.strdup_strings = 1; string_list_clear(&list, 0); - run_command_v_opt(argv_gc_auto, RUN_GIT_CMD); + argv_array_pushl(&argv_gc_auto, "gc", "--auto", NULL); + if (verbosity < 0) + argv_array_push(&argv_gc_auto, "--quiet"); + run_command_v_opt(argv_gc_auto.argv, RUN_GIT_CMD); + argv_array_clear(&argv_gc_auto); return result; } diff --git a/builtin/fmt-merge-msg.c b/builtin/fmt-merge-msg.c index 1c04070869..79df05ef52 100644 --- a/builtin/fmt-merge-msg.c +++ b/builtin/fmt-merge-msg.c @@ -100,7 +100,8 @@ static int handle_line(char *line, struct merge_parents *merge_parents) { int i, len = strlen(line); struct origin_data *origin_data; - char *src, *origin; + char *src; + const char *origin; struct src_data *src_data; struct string_list_item *item; int pulling_head = 0; @@ -109,7 +110,7 @@ static int handle_line(char *line, struct merge_parents *merge_parents) if (len < 43 || line[40] != '\t') return 1; - if (!prefixcmp(line + 41, "not-for-merge")) + if (starts_with(line + 41, "not-for-merge")) return 0; if (line[41] != '\t') @@ -155,17 +156,16 @@ static int handle_line(char *line, struct merge_parents *merge_parents) if (pulling_head) { origin = src; src_data->head_status |= 1; - } else if (!prefixcmp(line, "branch ")) { + } else if (starts_with(line, "branch ")) { origin_data->is_local_branch = 1; origin = line + 7; string_list_append(&src_data->branch, origin); src_data->head_status |= 2; - } else if (!prefixcmp(line, "tag ")) { + } else if (starts_with(line, "tag ")) { origin = line; string_list_append(&src_data->tag, origin + 4); src_data->head_status |= 2; - } else if (!prefixcmp(line, "remote-tracking branch ")) { - origin = line + strlen("remote-tracking branch "); + } else if (skip_prefix(line, "remote-tracking branch ", &origin)) { string_list_append(&src_data->r_branch, origin); src_data->head_status |= 2; } else { @@ -178,11 +178,8 @@ static int handle_line(char *line, struct merge_parents *merge_parents) int len = strlen(origin); if (origin[0] == '\'' && origin[len - 1] == '\'') origin = xmemdupz(origin + 1, len - 2); - } else { - char *new_origin = xmalloc(strlen(origin) + strlen(src) + 5); - sprintf(new_origin, "%s of %s", origin, src); - origin = new_origin; - } + } else + origin = xstrfmt("%s of %s", origin, src); if (strcmp(".", src)) origin_data->is_local_branch = 0; string_list_append(&origins, origin)->util = origin_data; @@ -230,12 +227,14 @@ static void add_branch_desc(struct strbuf *out, const char *name) static void record_person(int which, struct string_list *people, struct commit *commit) { + const char *buffer; char *name_buf, *name, *name_end; struct string_list_item *elem; const char *field; field = (which == 'a') ? "\nauthor " : "\ncommitter "; - name = strstr(commit->buffer, field); + buffer = get_commit_buffer(commit, NULL); + name = strstr(buffer, field); if (!name) return; name += strlen(field); @@ -247,6 +246,7 @@ static void record_person(int which, struct string_list *people, if (name_end < name) return; name_buf = xmemdupz(name, name_end - name + 1); + unuse_commit_buffer(commit, buffer); elem = string_list_lookup(people, name_buf); if (!elem) { @@ -297,8 +297,8 @@ static void credit_people(struct strbuf *out, if (!them->nr || (them->nr == 1 && me && - (me = skip_prefix(me, them->items->string)) != NULL && - skip_prefix(me, " <"))) + skip_prefix(me, them->items->string, &me) && + starts_with(me, " <"))) return; strbuf_addf(out, "\n%c %s ", comment_line_char, label); add_people_count(out, them); @@ -605,7 +605,7 @@ int fmt_merge_msg(struct strbuf *in, struct strbuf *out, resolve_refdup("HEAD", head_sha1, 1, NULL); if (!current_branch) die("No current branch"); - if (!prefixcmp(current_branch, "refs/heads/")) + if (starts_with(current_branch, "refs/heads/")) current_branch += 11; find_merge_parents(&merge_parents, in, head_sha1); diff --git a/builtin/for-each-ref.c b/builtin/for-each-ref.c index 7557aa239e..fda0f04712 100644 --- a/builtin/for-each-ref.c +++ b/builtin/for-each-ref.c @@ -9,6 +9,7 @@ #include "quote.h" #include "parse-options.h" #include "remote.h" +#include "color.h" /* Quoting styles */ #define QUOTE_NONE 0 @@ -75,6 +76,8 @@ static struct { { "upstream" }, { "symref" }, { "flag" }, + { "HEAD" }, + { "color" }, }; /* @@ -90,6 +93,7 @@ static struct { 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 @@ -134,10 +138,8 @@ static int parse_atom(const char *atom, const char *ep) /* Add it in, including the deref prefix */ at = used_atom_cnt; used_atom_cnt++; - used_atom = xrealloc(used_atom, - (sizeof *used_atom) * used_atom_cnt); - used_atom_type = xrealloc(used_atom_type, - (sizeof(*used_atom_type) * used_atom_cnt)); + 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 == '*') @@ -176,13 +178,21 @@ static const char *find_next(const char *cp) static int verify_format(const char *format) { const char *cp, *sp; + static const char color_reset[] = "color:reset"; + + need_color_reset_at_eol = 0; for (cp = format; *cp && (sp = find_next(cp)); ) { const char *ep = strchr(sp, ')'); + int at; + if (!ep) return error("malformed format string %s", sp); /* sp points at "%(" and ep points at the closing ")" */ - parse_atom(sp + 2, ep); + at = parse_atom(sp + 2, ep); cp = ep + 1; + + if (starts_with(used_atom[at], "color:")) + need_color_reset_at_eol = !!strcmp(used_atom[at], color_reset); } return 0; } @@ -271,18 +281,6 @@ static void grab_tag_values(struct atom_value *val, int deref, struct object *ob } } -static int num_parents(struct commit *commit) -{ - struct commit_list *parents; - int i; - - for (i = 0, parents = commit->parents; - parents; - parents = parents->next) - i++; - return i; -} - /* See grab_values */ static void grab_commit_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) { @@ -303,12 +301,12 @@ static void grab_commit_values(struct atom_value *val, int deref, struct object } if (!strcmp(name, "numparent")) { char *s = xmalloc(40); - v->ul = num_parents(commit); + v->ul = commit_list_count(commit->parents); sprintf(s, "%lu", v->ul); v->s = s; } else if (!strcmp(name, "parent")) { - int num = num_parents(commit); + int num = commit_list_count(commit->parents); int i; struct commit_list *parents; char *s = xmalloc(41 * num + 1); @@ -441,7 +439,7 @@ static void grab_person(const char *who, struct atom_value *val, int deref, stru if (name[wholen] != 0 && strcmp(name + wholen, "name") && strcmp(name + wholen, "email") && - prefixcmp(name + wholen, "date")) + !starts_with(name + wholen, "date")) continue; if (!wholine) wholine = find_wholine(who, wholen, buf, sz); @@ -453,7 +451,7 @@ static void grab_person(const char *who, struct atom_value *val, int deref, stru v->s = copy_name(wholine); else if (!strcmp(name + wholen, "email")) v->s = copy_email(wholine); - else if (!prefixcmp(name + wholen, "date")) + else if (starts_with(name + wholen, "date")) grab_date(wholine, v, name); } @@ -475,7 +473,7 @@ static void grab_person(const char *who, struct atom_value *val, int deref, stru if (deref) name++; - if (!prefixcmp(name, "creatordate")) + if (starts_with(name, "creatordate")) grab_date(wholine, v, name); else if (!strcmp(name, "creator")) v->s = copy_line(wholine); @@ -633,7 +631,7 @@ static void populate_value(struct refinfo *ref) unsigned long size; const unsigned char *tagged; - ref->value = xcalloc(sizeof(struct atom_value), used_atom_cnt); + ref->value = xcalloc(used_atom_cnt, sizeof(struct atom_value)); if (need_symref && (ref->flag & REF_ISSYMREF) && !ref->symref) { unsigned char unused1[20]; @@ -649,20 +647,20 @@ static void populate_value(struct refinfo *ref) int deref = 0; const char *refname; const char *formatp; + struct branch *branch = NULL; if (*name == '*') { deref = 1; name++; } - if (!prefixcmp(name, "refname")) + if (starts_with(name, "refname")) refname = ref->refname; - else if (!prefixcmp(name, "symref")) + else if (starts_with(name, "symref")) refname = ref->symref ? ref->symref : ""; - else if (!prefixcmp(name, "upstream")) { - struct branch *branch; + else if (starts_with(name, "upstream")) { /* only local branches may have an upstream */ - if (prefixcmp(ref->refname, "refs/heads/")) + if (!starts_with(ref->refname, "refs/heads/")) continue; branch = branch_get(ref->refname + 11); @@ -670,8 +668,13 @@ static void populate_value(struct refinfo *ref) !branch->merge[0]->dst) continue; refname = branch->merge[0]->dst; - } - else if (!strcmp(name, "flag")) { + } else if (starts_with(name, "color:")) { + char color[COLOR_MAXLEN] = ""; + + color_parse(name + 6, "--format", color); + 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"); @@ -684,20 +687,62 @@ static void populate_value(struct refinfo *ref) v->s = xstrdup(buf + 1); } continue; - } - else if (!deref && grab_objectname(name, ref->objectname, v)) + } else if (!deref && grab_objectname(name, ref->objectname, v)) { continue; - else + } else if (!strcmp(name, "HEAD")) { + const char *head; + unsigned char sha1[20]; + + head = resolve_ref_unsafe("HEAD", sha1, 1, NULL); + if (!strcmp(ref->refname, head)) + v->s = "*"; + else + v->s = " "; + continue; + } else continue; formatp = strchr(name, ':'); - /* look for "short" refname format */ if (formatp) { + int num_ours, num_theirs; + formatp++; if (!strcmp(formatp, "short")) refname = shorten_unambiguous_ref(refname, warn_ambiguous_refs); - else + else if (!strcmp(formatp, "track") && + starts_with(name, "upstream")) { + char buf[40]; + + stat_tracking_info(branch, &num_ours, &num_theirs); + 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); + stat_tracking_info(branch, &num_ours, &num_theirs); + 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); } @@ -805,7 +850,7 @@ static int grab_single_ref(const char *refname, const unsigned char *sha1, int f refname[plen] == '/' || p[plen-1] == '/')) break; - if (!fnmatch(p, refname, FNM_PATHNAME)) + if (!wildmatch(p, refname, WM_PATHNAME, NULL)) break; } if (!*pattern) @@ -823,8 +868,7 @@ static int grab_single_ref(const char *refname, const unsigned char *sha1, int f ref->flag = flag; cnt = cb->grab_cnt; - cb->grab_array = xrealloc(cb->grab_array, - sizeof(*cb->grab_array) * (cnt + 1)); + REALLOC_ARRAY(cb->grab_array, cnt + 1); cb->grab_array[cnt++] = ref; cb->grab_cnt = cnt; return 0; @@ -875,11 +919,9 @@ static void sort_refs(struct ref_sort *sort, struct refinfo **refs, int num_refs qsort(refs, num_refs, sizeof(struct refinfo *), compare_refs); } -static void print_value(struct refinfo *ref, int atom, int quote_style) +static void print_value(struct atom_value *v, int quote_style) { - struct atom_value *v; struct strbuf sb = STRBUF_INIT; - get_value(ref, atom, &v); switch (quote_style) { case QUOTE_NONE: fputs(v->s, stdout); @@ -946,15 +988,26 @@ 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); - print_value(info, parse_atom(sp + 2, ep), quote_style); + 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] = ""; + + color_parse("reset", "--format", color); + resetv.s = color; + print_value(&resetv, quote_style); + } putchar('\n'); } diff --git a/builtin/fsck.c b/builtin/fsck.c index 97ce678c6b..e9ba576c1f 100644 --- a/builtin/fsck.c +++ b/builtin/fsck.c @@ -144,7 +144,7 @@ static int traverse_reachable(void) unsigned int nr = 0; int result = 0; if (show_progress) - progress = start_progress_delay("Checking connectivity", 0, 0, 2); + progress = start_progress_delay(_("Checking connectivity"), 0, 0, 2); while (pending.nr) { struct object_array_entry *entry; struct object *obj; @@ -298,7 +298,7 @@ static int fsck_obj(struct object *obj) if (fsck_walk(obj, mark_used, NULL)) objerror(obj, "broken links"); - if (fsck_object(obj, check_strict, fsck_error_func)) + if (fsck_object(obj, NULL, 0, check_strict, fsck_error_func)) return -1; if (obj->type == OBJ_TREE) { @@ -310,8 +310,7 @@ static int fsck_obj(struct object *obj) if (obj->type == OBJ_COMMIT) { struct commit *commit = (struct commit *) obj; - free(commit->buffer); - commit->buffer = NULL; + free_commit_buffer(commit); if (!commit->parents && show_root) printf("root %s\n", sha1_to_hex(commit->object.sha1)); @@ -389,7 +388,8 @@ static void fsck_sha1_list(void) unsigned char *sha1 = entry->sha1; sha1_list.entry[i] = NULL; - fsck_sha1(sha1); + if (fsck_sha1(sha1)) + errors_found |= ERROR_OBJECT; free(entry); } sha1_list.nr = 0; @@ -442,7 +442,7 @@ static void fsck_dir(int i, char *path) add_sha1_list(sha1, DIRENT_SORT_HINT(de)); continue; } - if (!prefixcmp(de->d_name, "tmp_obj_")) + if (starts_with(de->d_name, "tmp_obj_")) continue; fprintf(stderr, "bad sha1 file: %s/%s\n", path, de->d_name); } @@ -482,11 +482,6 @@ static int fsck_handle_reflog(const char *logname, const unsigned char *sha1, in return 0; } -static int is_branch(const char *refname) -{ - return !strcmp(refname, "HEAD") || !prefixcmp(refname, "refs/heads/"); -} - static int fsck_handle_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) { struct object *obj; @@ -494,6 +489,7 @@ static int fsck_handle_ref(const char *refname, const unsigned char *sha1, int f obj = parse_object(sha1); if (!obj) { error("%s: invalid sha1 pointer %s", refname, sha1_to_hex(sha1)); + errors_found |= ERROR_REACHABLE; /* We'll continue with the rest despite the error.. */ return 0; } @@ -510,7 +506,7 @@ static void get_default_heads(void) { if (head_points_at && !is_null_sha1(head_sha1)) fsck_handle_ref("HEAD", head_sha1, 0, NULL); - for_each_ref(fsck_handle_ref, NULL); + for_each_rawref(fsck_handle_ref, NULL); if (include_reflogs) for_each_reflog(fsck_handle_reflog, NULL); @@ -541,7 +537,7 @@ static void fsck_object_dir(const char *path) fprintf(stderr, "Checking object directory\n"); if (show_progress) - progress = start_progress("Checking object directories", 256); + progress = start_progress(_("Checking object directories"), 256); for (i = 0; i < 256; i++) { static char dir[4096]; sprintf(dir, "%s/%02x", path, i); @@ -566,7 +562,7 @@ static int fsck_head_link(void) if (!strcmp(head_points_at, "HEAD")) /* detached HEAD */ null_is_error = 1; - else if (prefixcmp(head_points_at, "refs/heads/")) + else if (!starts_with(head_points_at, "refs/heads/")) return error("HEAD points to something strange (%s)", head_points_at); if (is_null_sha1(head_sha1)) { @@ -630,7 +626,7 @@ int cmd_fsck(int argc, const char **argv, const char *prefix) struct alternate_object_database *alt; errors_found = 0; - read_replace_refs = 0; + check_replace_refs = 0; argc = parse_options(argc, argv, prefix, fsck_opts, fsck_usage, 0); @@ -670,7 +666,7 @@ int cmd_fsck(int argc, const char **argv, const char *prefix) total += p->num_objects; } - progress = start_progress("Checking objects", total); + progress = start_progress(_("Checking objects"), total); } for (p = packed_git; p; p = p->next) { /* verify gives error messages itself */ diff --git a/builtin/gc.c b/builtin/gc.c index 25f2237c08..005adbebea 100644 --- a/builtin/gc.c +++ b/builtin/gc.c @@ -11,11 +11,12 @@ */ #include "builtin.h" -#include "cache.h" +#include "lockfile.h" #include "parse-options.h" #include "run-command.h" #include "sigchain.h" #include "argv-array.h" +#include "commit.h" #define FAILED_RUN "failed to run %s" @@ -25,9 +26,12 @@ 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_window = 250; static int gc_auto_threshold = 6700; static int gc_auto_pack_limit = 50; +static int detach_auto = 1; static const char *prune_expire = "2.weeks.ago"; static struct argv_array pack_refs_cmd = ARGV_ARRAY_INIT; @@ -51,36 +55,33 @@ static void remove_pidfile_on_signal(int signo) raise(signo); } -static int gc_config(const char *var, const char *value, void *cb) +static void gc_config(void) { - if (!strcmp(var, "gc.packrefs")) { + const char *value; + + if (!git_config_get_value("gc.packrefs", &value)) { if (value && !strcmp(value, "notbare")) pack_refs = -1; else - pack_refs = git_config_bool(var, value); - return 0; - } - if (!strcmp(var, "gc.aggressivewindow")) { - aggressive_window = git_config_int(var, value); - return 0; - } - if (!strcmp(var, "gc.auto")) { - gc_auto_threshold = git_config_int(var, value); - return 0; - } - if (!strcmp(var, "gc.autopacklimit")) { - gc_auto_pack_limit = git_config_int(var, value); - return 0; + pack_refs = git_config_bool("gc.packrefs", value); } - if (!strcmp(var, "gc.pruneexpire")) { - if (value && strcmp(value, "now")) { + + git_config_get_int("gc.aggressivewindow", &aggressive_window); + git_config_get_int("gc.aggressivedepth", &aggressive_depth); + git_config_get_int("gc.auto", &gc_auto_threshold); + git_config_get_int("gc.autopacklimit", &gc_auto_pack_limit); + git_config_get_bool("gc.autodetach", &detach_auto); + + if (!git_config_get_string_const("gc.pruneexpire", &prune_expire)) { + if (strcmp(prune_expire, "now")) { unsigned long now = approxidate("now"); - if (approxidate(value) >= now) - return error(_("Invalid %s: '%s'"), var, value); + if (approxidate(prune_expire) >= now) { + git_die_config("gc.pruneexpire", _("Invalid gc.pruneexpire: '%s'"), + prune_expire); + } } - return git_config_string(&prune_expire, var, value); } - return git_default_config(var, value, cb); + git_config(git_default_config, NULL); } static int too_many_loose_objects(void) @@ -178,7 +179,7 @@ static int need_to_gc(void) else if (!too_many_loose_objects()) return 0; - if (run_hook(NULL, "pre-auto-gc", NULL)) + if (run_hook_le(NULL, "pre-auto-gc", NULL)) return 0; return 1; } @@ -187,13 +188,12 @@ static int need_to_gc(void) static const char *lock_repo_for_gc(int force, pid_t* ret_pid) { static struct lock_file lock; - static char locking_host[128]; char my_host[128]; struct strbuf sb = STRBUF_INIT; struct stat st; uintmax_t pid; FILE *fp; - int fd, should_exit; + int fd; if (pidfile) /* already locked */ @@ -205,6 +205,8 @@ static const char *lock_repo_for_gc(int force, pid_t* ret_pid) fd = hold_lock_file_for_update(&lock, git_path("gc.pid"), LOCK_DIE_ON_ERROR); if (!force) { + static char locking_host[128]; + int should_exit; fp = fopen(git_path("gc.pid"), "r"); memset(locking_host, 0, sizeof(locking_host)); should_exit = @@ -246,6 +248,19 @@ static const char *lock_repo_for_gc(int force, pid_t* ret_pid) return NULL; } +static int gc_before_repack(void) +{ + if (pack_refs && run_command_v_opt(pack_refs_cmd.argv, RUN_GIT_CMD)) + return error(FAILED_RUN, pack_refs_cmd.argv[0]); + + if (prune_reflogs && run_command_v_opt(reflog.argv, RUN_GIT_CMD)) + return error(FAILED_RUN, reflog.argv[0]); + + pack_refs = 0; + prune_reflogs = 0; + return 0; +} + int cmd_gc(int argc, const char **argv, const char *prefix) { int aggressive = 0; @@ -275,7 +290,7 @@ int cmd_gc(int argc, const char **argv, const char *prefix) argv_array_pushl(&prune, "prune", "--expire", NULL ); argv_array_pushl(&rerere, "rerere", "gc", NULL); - git_config(gc_config, NULL); + gc_config(); if (pack_refs < 0) pack_refs = !is_bare_repository(); @@ -287,7 +302,8 @@ int cmd_gc(int argc, const char **argv, const char *prefix) if (aggressive) { argv_array_push(&repack, "-f"); - argv_array_push(&repack, "--depth=250"); + if (aggressive_depth > 0) + argv_array_pushf(&repack, "--depth=%d", aggressive_depth); if (aggressive_window > 0) argv_array_pushf(&repack, "--window=%d", aggressive_window); } @@ -300,11 +316,22 @@ int cmd_gc(int argc, const char **argv, const char *prefix) */ if (!need_to_gc()) return 0; - if (!quiet) - fprintf(stderr, - _("Auto packing the repository for optimum performance. You may also\n" - "run \"git gc\" manually. See " - "\"git help gc\" for more information.\n")); + if (!quiet) { + if (detach_auto) + fprintf(stderr, _("Auto packing the repository in background for optimum performance.\n")); + else + fprintf(stderr, _("Auto packing the repository for optimum performance.\n")); + fprintf(stderr, _("See \"git help gc\" for manual housekeeping.\n")); + } + if (detach_auto) { + if (gc_before_repack()) + return -1; + /* + * failure to daemonize is ok, we'll continue + * in foreground + */ + daemonize(); + } } else add_repack_all_option(); @@ -316,11 +343,8 @@ int cmd_gc(int argc, const char **argv, const char *prefix) name, (uintmax_t)pid); } - if (pack_refs && run_command_v_opt(pack_refs_cmd.argv, RUN_GIT_CMD)) - return error(FAILED_RUN, pack_refs_cmd.argv[0]); - - if (run_command_v_opt(reflog.argv, RUN_GIT_CMD)) - return error(FAILED_RUN, reflog.argv[0]); + if (gc_before_repack()) + return -1; if (run_command_v_opt(repack.argv, RUN_GIT_CMD)) return error(FAILED_RUN, repack.argv[0]); diff --git a/builtin/get-tar-commit-id.c b/builtin/get-tar-commit-id.c new file mode 100644 index 0000000000..6f4147ad02 --- /dev/null +++ b/builtin/get-tar-commit-id.c @@ -0,0 +1,41 @@ +/* + * Copyright (c) 2005, 2006 Rene Scharfe + */ +#include "cache.h" +#include "commit.h" +#include "tar.h" +#include "builtin.h" +#include "quote.h" + +static const char builtin_get_tar_commit_id_usage[] = +"git get-tar-commit-id < <tarfile>"; + +/* ustar header + extended global header content */ +#define RECORDSIZE (512) +#define HEADERSIZE (2 * RECORDSIZE) + +int cmd_get_tar_commit_id(int argc, const char **argv, const char *prefix) +{ + char buffer[HEADERSIZE]; + struct ustar_header *header = (struct ustar_header *)buffer; + char *content = buffer + RECORDSIZE; + const char *comment; + ssize_t n; + + if (argc != 1) + usage(builtin_get_tar_commit_id_usage); + + n = read_in_full(0, buffer, HEADERSIZE); + if (n < HEADERSIZE) + die("git get-tar-commit-id: read error"); + if (header->typeflag[0] != 'g') + return 1; + if (!skip_prefix(content, "52 comment=", &comment)) + return 1; + + n = write_in_full(1, comment, 41); + if (n < 41) + die_errno("git get-tar-commit-id: write error"); + + return 0; +} diff --git a/builtin/grep.c b/builtin/grep.c index 63f86032d9..c86a142f30 100644 --- a/builtin/grep.c +++ b/builtin/grep.c @@ -361,9 +361,7 @@ static void run_pager(struct grep_opt *opt, const char *prefix) argv[i] = path_list->items[i].string; argv[path_list->nr] = NULL; - if (prefix && chdir(prefix)) - die(_("Failed to chdir: %s"), prefix); - status = run_command_v_opt(argv, RUN_USING_SHELL); + status = run_command_v_opt_cd_env(argv, RUN_USING_SHELL, prefix, NULL); if (status) exit(status); free(argv); @@ -379,7 +377,7 @@ static int grep_cache(struct grep_opt *opt, const struct pathspec *pathspec, int const struct cache_entry *ce = active_cache[nr]; if (!S_ISREG(ce->ce_mode)) continue; - if (!match_pathspec_depth(pathspec, ce->name, ce_namelen(ce), 0, NULL)) + if (!ce_path_match(ce, pathspec, NULL)) continue; /* * If CE_VALID is on, we assume worktree file and its cache entry @@ -524,9 +522,7 @@ static int grep_directory(struct grep_opt *opt, const struct pathspec *pathspec, fill_directory(&dir, pathspec); for (i = 0; i < dir.nr; i++) { - const char *name = dir.entries[i]->name; - int namelen = strlen(name); - if (!match_pathspec_depth(pathspec, name, namelen, 0, NULL)) + if (!dir_path_match(dir.entries[i], pathspec, 0, NULL)) continue; hit |= grep_file(opt, dir.entries[i]->name); if (hit && opt->status_only) @@ -876,6 +872,9 @@ int cmd_grep(int argc, const char **argv, const char *prefix) if (len > 4 && is_dir_sep(pager[len - 5])) pager += len - 4; + if (opt.ignore_case && !strcmp("less", pager)) + string_list_append(&path_list, "-I"); + if (!strcmp("less", pager) || !strcmp("vi", pager)) { struct strbuf buf = STRBUF_INIT; strbuf_addf(&buf, "+/%s%s", diff --git a/builtin/hash-object.c b/builtin/hash-object.c index d7fcf4c13c..6158363318 100644 --- a/builtin/hash-object.c +++ b/builtin/hash-object.c @@ -10,35 +10,55 @@ #include "parse-options.h" #include "exec_cmd.h" -static void hash_fd(int fd, const char *type, int write_object, const char *path) +/* + * This is to create corrupt objects for debugging and as such it + * needs to bypass the data conversion performed by, and the type + * limitation imposed by, index_fd() and its callees. + */ +static int hash_literally(unsigned char *sha1, int fd, const char *type, unsigned flags) +{ + struct strbuf buf = STRBUF_INIT; + int ret; + + if (strbuf_read(&buf, fd, 4096) < 0) + ret = -1; + else if (flags & HASH_WRITE_OBJECT) + ret = write_sha1_file(buf.buf, buf.len, type, sha1); + else + ret = hash_sha1_file(buf.buf, buf.len, type, sha1); + strbuf_release(&buf); + return ret; +} + +static void hash_fd(int fd, const char *type, const char *path, unsigned flags, + int literally) { struct stat st; unsigned char sha1[20]; - unsigned flags = (HASH_FORMAT_CHECK | - (write_object ? HASH_WRITE_OBJECT : 0)); if (fstat(fd, &st) < 0 || - index_fd(sha1, fd, &st, type_from_string(type), path, flags)) - die(write_object + (literally + ? hash_literally(sha1, fd, type, flags) + : index_fd(sha1, fd, &st, type_from_string(type), path, flags))) + die((flags & HASH_WRITE_OBJECT) ? "Unable to add %s to database" : "Unable to hash %s", path); printf("%s\n", sha1_to_hex(sha1)); maybe_flush_or_die(stdout, "hash to stdout"); } -static void hash_object(const char *path, const char *type, int write_object, - const char *vpath) +static void hash_object(const char *path, const char *type, const char *vpath, + unsigned flags, int literally) { int fd; fd = open(path, O_RDONLY); if (fd < 0) die_errno("Cannot open '%s'", path); - hash_fd(fd, type, write_object, vpath); + hash_fd(fd, type, vpath, flags, literally); } -static int no_filters; - -static void hash_stdin_paths(const char *type, int write_objects) +static void hash_stdin_paths(const char *type, int no_filters, unsigned flags, + int literally) { struct strbuf buf = STRBUF_INIT, nbuf = STRBUF_INIT; @@ -49,47 +69,46 @@ static void hash_stdin_paths(const char *type, int write_objects) die("line is badly quoted"); strbuf_swap(&buf, &nbuf); } - hash_object(buf.buf, type, write_objects, - no_filters ? NULL : buf.buf); + hash_object(buf.buf, type, no_filters ? NULL : buf.buf, flags, + literally); } strbuf_release(&buf); strbuf_release(&nbuf); } -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>"), - NULL -}; - -static const char *type; -static int write_object; -static int hashstdin; -static int stdin_paths; -static const char *vpath; - -static const struct option hash_object_options[] = { - OPT_STRING('t', NULL, &type, N_("type"), N_("object type")), - OPT_BOOL('w', NULL, &write_object, N_("write the object into the object database")), - OPT_COUNTUP( 0 , "stdin", &hashstdin, N_("read the object from stdin")), - OPT_BOOL( 0 , "stdin-paths", &stdin_paths, N_("read file names from stdin")), - OPT_BOOL( 0 , "no-filters", &no_filters, N_("store file as is without filters")), - OPT_STRING( 0 , "path", &vpath, N_("file"), N_("process file as it were from this path")), - OPT_END() -}; - int cmd_hash_object(int argc, const char **argv, const char *prefix) { + static const char * const hash_object_usage[] = { + N_("git hash-object [-t <type>] [-w] [--path=<file>|--no-filters] [--stdin] [--] <file>..."), + N_("git hash-object --stdin-paths < <list-of-paths>"), + NULL + }; + const char *type = blob_type; + int hashstdin = 0; + int stdin_paths = 0; + int no_filters = 0; + int literally = 0; + unsigned flags = HASH_FORMAT_CHECK; + const char *vpath = NULL; + const struct option hash_object_options[] = { + OPT_STRING('t', NULL, &type, N_("type"), N_("object type")), + OPT_BIT('w', NULL, &flags, N_("write the object into the object database"), + HASH_WRITE_OBJECT), + OPT_COUNTUP( 0 , "stdin", &hashstdin, N_("read the object from stdin")), + OPT_BOOL( 0 , "stdin-paths", &stdin_paths, N_("read file names from stdin")), + OPT_BOOL( 0 , "no-filters", &no_filters, N_("store file as is without filters")), + OPT_BOOL( 0, "literally", &literally, N_("just hash any random garbage to create corrupt objects for debugging Git")), + OPT_STRING( 0 , "path", &vpath, N_("file"), N_("process file as it were from this path")), + OPT_END() + }; int i; int prefix_length = -1; const char *errstr = NULL; - type = blob_type; - argc = parse_options(argc, argv, NULL, hash_object_options, hash_object_usage, 0); - if (write_object) { + if (flags & HASH_WRITE_OBJECT) { prefix = setup_git_directory(); prefix_length = prefix ? strlen(prefix) : 0; if (vpath && prefix) @@ -119,19 +138,19 @@ int cmd_hash_object(int argc, const char **argv, const char *prefix) } if (hashstdin) - hash_fd(0, type, write_object, vpath); + hash_fd(0, type, vpath, flags, literally); for (i = 0 ; i < argc; i++) { const char *arg = argv[i]; if (0 <= prefix_length) arg = prefix_filename(prefix, prefix_length, arg); - hash_object(arg, type, write_object, - no_filters ? NULL : vpath ? vpath : arg); + hash_object(arg, type, no_filters ? NULL : vpath ? vpath : arg, + flags, literally); } if (stdin_paths) - hash_stdin_paths(type, write_object); + hash_stdin_paths(type, no_filters, flags, literally); return 0; } diff --git a/builtin/help.c b/builtin/help.c index f1e236b912..b3c818ee01 100644 --- a/builtin/help.c +++ b/builtin/help.c @@ -79,12 +79,11 @@ static const char *get_man_viewer_info(const char *name) static int check_emacsclient_version(void) { struct strbuf buffer = STRBUF_INIT; - struct child_process ec_process; + struct child_process ec_process = CHILD_PROCESS_INIT; const char *argv_ec[] = { "emacsclient", "--version", NULL }; int version; /* emacsclient prints its version number on stderr */ - memset(&ec_process, 0, sizeof(ec_process)); ec_process.argv = argv_ec; ec_process.err = -1; ec_process.stdout_to_stderr = 1; @@ -100,7 +99,7 @@ static int check_emacsclient_version(void) */ finish_command(&ec_process); - if (prefixcmp(buffer.buf, "emacsclient")) { + if (!starts_with(buffer.buf, "emacsclient")) { strbuf_release(&buffer); return error(_("Failed to parse emacsclient version.")); } @@ -258,7 +257,7 @@ static int add_man_viewer_info(const char *var, const char *value) static int git_help_config(const char *var, const char *value, void *cb) { - if (!prefixcmp(var, "column.")) + if (starts_with(var, "column.")) return git_column_config(var, value, "help", &colopts); if (!strcmp(var, "help.format")) { if (!value) @@ -278,7 +277,7 @@ static int git_help_config(const char *var, const char *value, void *cb) add_man_viewer(value); return 0; } - if (!prefixcmp(var, "man.")) + if (starts_with(var, "man.")) return add_man_viewer_info(var, value); return git_default_config(var, value, cb); @@ -288,6 +287,10 @@ static struct cmdnames main_cmds, other_cmds; static int is_git_command(const char *s) { + if (is_builtin(s)) + return 1; + + load_command_list("git-", &main_cmds, &other_cmds); return is_in_cmdlist(&main_cmds, s) || is_in_cmdlist(&other_cmds, s); } @@ -306,7 +309,7 @@ static const char *cmd_to_page(const char *git_cmd) { if (!git_cmd) return "git"; - else if (!prefixcmp(git_cmd, "git")) + else if (starts_with(git_cmd, "git")) return git_cmd; else if (is_git_command(git_cmd)) return prepend("git-", git_cmd); @@ -418,6 +421,7 @@ static struct { const char *help; } common_guides[] = { { "attributes", N_("Defining attributes per path") }, + { "everyday", N_("Everyday Git With 20 Commands Or So") }, { "glossary", N_("A Git glossary") }, { "ignore", N_("Specifies intentionally untracked files to ignore") }, { "modules", N_("Defining submodule properties") }, @@ -449,7 +453,6 @@ int cmd_help(int argc, const char **argv, const char *prefix) int nongit; const char *alias; enum help_format parsed_help_format; - load_command_list("git-", &main_cmds, &other_cmds); argc = parse_options(argc, argv, prefix, builtin_help_options, builtin_help_usage, 0); @@ -458,6 +461,7 @@ int cmd_help(int argc, const char **argv, const char *prefix) if (show_all) { git_config(git_help_config, NULL); printf(_("usage: %s%s"), _(git_usage_string), "\n\n"); + load_command_list("git-", &main_cmds, &other_cmds); list_commands(colopts, &main_cmds, &other_cmds); } diff --git a/builtin/index-pack.c b/builtin/index-pack.c index 9e9eb4b74e..792c66ca59 100644 --- a/builtin/index-pack.c +++ b/builtin/index-pack.c @@ -40,17 +40,13 @@ struct base_data { int ofs_first, ofs_last; }; -#if !defined(NO_PTHREADS) && defined(NO_THREAD_SAFE_PREAD) -/* pread() emulation is not thread-safe. Disable threading. */ -#define NO_PTHREADS -#endif - struct thread_local { #ifndef NO_PTHREADS pthread_t thread; #endif struct base_data *base_cache; size_t base_cache_used; + int pack_fd; }; /* @@ -91,7 +87,8 @@ static off_t consumed_bytes; static unsigned deepest_delta; static git_SHA_CTX input_ctx; static uint32_t input_crc32; -static int input_fd, output_fd, pack_fd; +static int input_fd, output_fd; +static const char *curr_pack; #ifndef NO_PTHREADS @@ -115,6 +112,10 @@ static pthread_mutex_t deepest_delta_mutex; #define deepest_delta_lock() lock_mutex(&deepest_delta_mutex) #define deepest_delta_unlock() unlock_mutex(&deepest_delta_mutex) +static pthread_mutex_t type_cas_mutex; +#define type_cas_lock() lock_mutex(&type_cas_mutex) +#define type_cas_unlock() unlock_mutex(&type_cas_mutex) + static pthread_key_t key; static inline void lock_mutex(pthread_mutex_t *mutex) @@ -134,26 +135,38 @@ static inline void unlock_mutex(pthread_mutex_t *mutex) */ static void init_thread(void) { + int i; init_recursive_mutex(&read_mutex); pthread_mutex_init(&counter_mutex, NULL); pthread_mutex_init(&work_mutex, NULL); + pthread_mutex_init(&type_cas_mutex, NULL); if (show_stat) pthread_mutex_init(&deepest_delta_mutex, NULL); pthread_key_create(&key, NULL); thread_data = xcalloc(nr_threads, sizeof(*thread_data)); + for (i = 0; i < nr_threads; i++) { + thread_data[i].pack_fd = open(curr_pack, O_RDONLY); + if (thread_data[i].pack_fd == -1) + die_errno(_("unable to open %s"), curr_pack); + } + threads_active = 1; } static void cleanup_thread(void) { + int i; if (!threads_active) return; threads_active = 0; pthread_mutex_destroy(&read_mutex); pthread_mutex_destroy(&counter_mutex); pthread_mutex_destroy(&work_mutex); + pthread_mutex_destroy(&type_cas_mutex); if (show_stat) pthread_mutex_destroy(&deepest_delta_mutex); + for (i = 0; i < nr_threads; i++) + close(thread_data[i].pack_fd); pthread_key_delete(key); free(thread_data); } @@ -200,8 +213,13 @@ static unsigned check_object(struct object *obj) if (!(obj->flags & FLAG_CHECKED)) { unsigned long size; int type = sha1_object_info(obj->sha1, &size); - if (type != obj->type || type <= 0) - die(_("object of unexpected type")); + if (type <= 0) + die(_("did not receive expected object %s"), + sha1_to_hex(obj->sha1)); + if (type != obj->type) + die(_("object %s: expected type %s, found %s"), + sha1_to_hex(obj->sha1), + typename(obj->type), typename(type)); obj->flags |= FLAG_CHECKED; return 1; } @@ -288,13 +306,13 @@ static const char *open_pack_file(const char *pack_name) output_fd = open(pack_name, O_CREAT|O_EXCL|O_RDWR, 0600); if (output_fd < 0) die_errno(_("unable to create '%s'"), pack_name); - pack_fd = output_fd; + nothread_data.pack_fd = output_fd; } else { input_fd = open(pack_name, O_RDONLY); if (input_fd < 0) die_errno(_("cannot open packfile '%s'"), pack_name); output_fd = -1; - pack_fd = input_fd; + nothread_data.pack_fd = input_fd; } git_SHA1_Init(&input_ctx); return pack_name; @@ -350,8 +368,7 @@ static void set_thread_data(struct thread_local *data) static struct base_data *alloc_base_data(void) { - struct base_data *base = xmalloc(sizeof(struct base_data)); - memset(base, 0, sizeof(*base)); + struct base_data *base = xcalloc(1, sizeof(struct base_data)); base->ref_last = -1; base->ofs_last = -1; return base; @@ -542,7 +559,7 @@ static void *unpack_data(struct object_entry *obj, do { ssize_t n = (len < 64*1024) ? len : 64*1024; - n = pread(pack_fd, inbuf, n, from); + n = xpread(get_thread_data()->pack_fd, inbuf, n, from); if (n < 0) die_errno(_("cannot pread pack file")); if (!n) @@ -762,7 +779,8 @@ static void sha1_object(const void *data, struct object_entry *obj_entry, if (!obj) die(_("invalid %s"), typename(type)); if (do_fsck_object && - fsck_object(obj, 1, fsck_error_function)) + fsck_object(obj, buf, size, 1, + fsck_error_function)) die(_("Error in object")); if (fsck_walk(obj, mark_link, NULL)) die(_("Not all child objects of %s are reachable"), sha1_to_hex(obj->sha1)); @@ -774,7 +792,8 @@ static void sha1_object(const void *data, struct object_entry *obj_entry, } if (obj->type == OBJ_COMMIT) { struct commit *commit = (struct commit *) obj; - commit->buffer = NULL; + if (detach_commit_buffer(commit, NULL) != data) + die("BUG: parse_object_buffer transmogrified our buffer"); } obj->flags |= FLAG_CHECKED; } @@ -850,7 +869,6 @@ static void resolve_delta(struct object_entry *delta_obj, { void *base_data, *delta_data; - delta_obj->real_type = base->obj->real_type; if (show_stat) { delta_obj->delta_depth = base->obj->delta_depth + 1; deepest_delta_lock(); @@ -876,6 +894,26 @@ static void resolve_delta(struct object_entry *delta_obj, counter_unlock(); } +/* + * Standard boolean compare-and-swap: atomically check whether "*type" is + * "want"; if so, swap in "set" and return true. Otherwise, leave it untouched + * and return false. + */ +static int compare_and_swap_type(enum object_type *type, + enum object_type want, + enum object_type set) +{ + enum object_type old; + + type_cas_lock(); + old = *type; + if (old == want) + *type = set; + type_cas_unlock(); + + return old == want; +} + static struct base_data *find_unresolved_deltas_1(struct base_data *base, struct base_data *prev_base) { @@ -903,7 +941,10 @@ static struct base_data *find_unresolved_deltas_1(struct base_data *base, struct object_entry *child = objects + deltas[base->ref_first].obj_no; struct base_data *result = alloc_base_data(); - assert(child->real_type == OBJ_REF_DELTA); + if (!compare_and_swap_type(&child->real_type, OBJ_REF_DELTA, + base->obj->real_type)) + die("BUG: child->real_type != OBJ_REF_DELTA"); + resolve_delta(child, base, result); if (base->ref_first == base->ref_last && base->ofs_last == -1) free_base_data(base); @@ -917,6 +958,7 @@ static struct base_data *find_unresolved_deltas_1(struct base_data *base, struct base_data *result = alloc_base_data(); assert(child->real_type == OBJ_OFS_DELTA); + child->real_type = base->obj->real_type; resolve_delta(child, base, result); if (base->ofs_first == base->ofs_last) free_base_data(base); @@ -1128,9 +1170,7 @@ static void conclude_pack(int fix_thin_pack, const char *curr_pack, unsigned cha int nr_objects_initial = nr_objects; if (nr_unresolved <= 0) die(_("confusion beyond insanity")); - objects = xrealloc(objects, - (nr_objects + nr_unresolved + 1) - * sizeof(*objects)); + REALLOC_ARRAY(objects, nr_objects + nr_unresolved + 1); memset(objects + nr_objects + 1, 0, nr_unresolved * sizeof(*objects)); f = sha1fd(output_fd, curr_pack); @@ -1291,7 +1331,7 @@ static void final(const char *final_pack_name, const char *curr_pack_name, if (keep_fd < 0) { if (errno != EEXIST) die_errno(_("cannot write keep file '%s'"), - keep_name); + keep_name ? keep_name : name); } else { if (keep_msg_len > 0) { write_or_die(keep_fd, keep_msg, keep_msg_len); @@ -1299,7 +1339,7 @@ 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 ? keep_name : name); report = "keep"; } } @@ -1490,10 +1530,11 @@ static void show_pack_info(int stat_only) int cmd_index_pack(int argc, const char **argv, const char *prefix) { int i, fix_thin_pack = 0, verify = 0, stat_only = 0; - const char *curr_pack, *curr_index; + const char *curr_index; const char *index_name = NULL, *pack_name = NULL; const char *keep_name = NULL, *keep_msg = NULL; - char *index_name_buf = NULL, *keep_name_buf = NULL; + struct strbuf index_name_buf = STRBUF_INIT, + keep_name_buf = STRBUF_INIT; struct pack_idx_entry **idx_objects; struct pack_idx_option opts; unsigned char pack_sha1[20]; @@ -1502,7 +1543,7 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix) if (argc == 2 && !strcmp(argv[1], "-h")) usage(index_pack_usage); - read_replace_refs = 0; + check_replace_refs = 0; reset_pack_idx_option(&opts); git_config(git_index_pack_config, &opts); @@ -1534,9 +1575,9 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix) stat_only = 1; } else if (!strcmp(arg, "--keep")) { keep_msg = ""; - } else if (!prefixcmp(arg, "--keep=")) { + } else if (starts_with(arg, "--keep=")) { keep_msg = arg + 7; - } else if (!prefixcmp(arg, "--threads=")) { + } else if (starts_with(arg, "--threads=")) { char *end; nr_threads = strtoul(arg+10, &end, 0); if (!arg[10] || *end || nr_threads < 0) @@ -1547,7 +1588,7 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix) "ignoring %s"), arg); nr_threads = 1; #endif - } else if (!prefixcmp(arg, "--pack_header=")) { + } else if (starts_with(arg, "--pack_header=")) { struct pack_header *hdr; char *c; @@ -1566,7 +1607,7 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix) if (index_name || (i+1) >= argc) usage(index_pack_usage); index_name = argv[++i]; - } else if (!prefixcmp(arg, "--index-version=")) { + } else if (starts_with(arg, "--index-version=")) { char *c; opts.version = strtoul(arg + 16, &c, 10); if (opts.version > 2) @@ -1590,24 +1631,22 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix) if (fix_thin_pack && !from_stdin) die(_("--fix-thin cannot be used without --stdin")); if (!index_name && pack_name) { - int len = strlen(pack_name); - if (!has_extension(pack_name, ".pack")) + size_t len; + if (!strip_suffix(pack_name, ".pack", &len)) die(_("packfile name '%s' does not end with '.pack'"), pack_name); - index_name_buf = xmalloc(len); - memcpy(index_name_buf, pack_name, len - 5); - strcpy(index_name_buf + len - 5, ".idx"); - index_name = index_name_buf; + 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) { - int len = strlen(pack_name); - if (!has_extension(pack_name, ".pack")) + size_t len; + if (!strip_suffix(pack_name, ".pack", &len)) die(_("packfile name '%s' does not end with '.pack'"), pack_name); - keep_name_buf = xmalloc(len); - memcpy(keep_name_buf, pack_name, len - 5); - strcpy(keep_name_buf + len - 5, ".keep"); - keep_name = keep_name_buf; + strbuf_add(&keep_name_buf, pack_name, len); + strbuf_addstr(&keep_name_buf, ".idx"); + keep_name = keep_name_buf.buf; } if (verify) { if (!index_name) @@ -1655,8 +1694,8 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix) else close(input_fd); free(objects); - free(index_name_buf); - free(keep_name_buf); + strbuf_release(&index_name_buf); + strbuf_release(&keep_name_buf); if (pack_name == NULL) free((void *) curr_pack); if (index_name == NULL) diff --git a/builtin/init-db.c b/builtin/init-db.c index 78aa3872dd..587a5055ed 100644 --- a/builtin/init-db.c +++ b/builtin/init-db.c @@ -266,7 +266,7 @@ static int create_default_files(const char *template_path) /* allow template config file to override the default */ if (log_all_ref_updates == -1) git_config_set("core.logallrefupdates", "true"); - if (prefixcmp(git_dir, work_tree) || + if (!starts_with(git_dir, work_tree) || strcmp(git_dir + strlen(work_tree), "/.git")) { git_config_set("core.worktree", work_tree); } @@ -330,12 +330,12 @@ int set_git_dir_init(const char *git_dir, const char *real_git_dir, * moving the target repo later on in separate_git_dir() */ git_link = xstrdup(real_path(git_dir)); + set_git_dir(real_path(real_git_dir)); } else { - real_git_dir = real_path(git_dir); + set_git_dir(real_path(git_dir)); git_link = NULL; } - set_git_dir(real_path(real_git_dir)); return 0; } @@ -412,11 +412,9 @@ int init_db(const char *template_dir, unsigned int flags) if (!(flags & INIT_DB_QUIET)) { int len = strlen(git_dir); - /* - * TRANSLATORS: The first '%s' is either "Reinitialized - * existing" or "Initialized empty", the second " shared" or - * "", and the last '%s%s' is the verbatim directory name. - */ + /* TRANSLATORS: The first '%s' is either "Reinitialized + existing" or "Initialized empty", the second " shared" or + "", and the last '%s%s' is the verbatim directory name. */ printf(_("%s%s Git repository in %s%s\n"), reinit ? _("Reinitialized existing") : _("Initialized empty"), shared_repository ? _(" shared") : "", @@ -428,8 +426,9 @@ int init_db(const char *template_dir, unsigned int flags) static int guess_repository_type(const char *git_dir) { - char cwd[PATH_MAX]; const char *slash; + char *cwd; + int cwd_is_git_dir; /* * "GIT_DIR=. git init" is always bare. @@ -437,9 +436,10 @@ static int guess_repository_type(const char *git_dir) */ if (!strcmp(".", git_dir)) return 1; - if (!getcwd(cwd, sizeof(cwd))) - die_errno(_("cannot tell cwd")); - if (!strcmp(git_dir, cwd)) + cwd = xgetcwd(); + cwd_is_git_dir = !strcmp(git_dir, cwd); + free(cwd); + if (cwd_is_git_dir) return 1; /* * "GIT_DIR=.git or GIT_DIR=something/.git is usually not. @@ -515,13 +515,14 @@ int cmd_init_db(int argc, const char **argv, const char *prefix) saved = shared_repository; shared_repository = 0; switch (safe_create_leading_directories_const(argv[0])) { - case -3: + case SCLD_OK: + case SCLD_PERMS: + break; + case SCLD_EXISTS: errno = EEXIST; /* fallthru */ - case -1: - die_errno(_("cannot mkdir %s"), argv[0]); - break; default: + die_errno(_("cannot mkdir %s"), argv[0]); break; } shared_repository = saved; @@ -536,10 +537,9 @@ int cmd_init_db(int argc, const char **argv, const char *prefix) usage(init_db_usage[0]); } if (is_bare_repository_cfg == 1) { - static char git_dir[PATH_MAX+1]; - - setenv(GIT_DIR_ENVIRONMENT, - getcwd(git_dir, sizeof(git_dir)), argc > 0); + char *cwd = xgetcwd(); + setenv(GIT_DIR_ENVIRONMENT, cwd, argc > 0); + free(cwd); } if (init_shared_repository != -1) @@ -573,13 +573,10 @@ int cmd_init_db(int argc, const char **argv, const char *prefix) git_work_tree_cfg = xstrdup(real_path(rel)); free(rel); } - if (!git_work_tree_cfg) { - git_work_tree_cfg = xcalloc(PATH_MAX, 1); - if (!getcwd(git_work_tree_cfg, PATH_MAX)) - die_errno (_("Cannot access current working directory")); - } + if (!git_work_tree_cfg) + git_work_tree_cfg = xgetcwd(); if (work_tree) - set_git_work_tree(real_path(work_tree)); + set_git_work_tree(work_tree); else set_git_work_tree(git_work_tree_cfg); if (access(get_git_work_tree(), X_OK)) @@ -588,7 +585,7 @@ int cmd_init_db(int argc, const char **argv, const char *prefix) } else { if (work_tree) - set_git_work_tree(real_path(work_tree)); + set_git_work_tree(work_tree); } set_git_dir_init(git_dir, real_git_dir, 1); diff --git a/builtin/log.c b/builtin/log.c index b708517a35..1202eba8b6 100644 --- a/builtin/log.c +++ b/builtin/log.c @@ -63,6 +63,8 @@ static int parse_decoration_style(const char *var, const char *value) return DECORATE_FULL_REFS; else if (!strcmp(value, "short")) return DECORATE_SHORT_REFS; + else if (!strcmp(value, "auto")) + return (isatty(1) || pager_in_use()) ? DECORATE_SHORT_REFS : 0; return -1; } @@ -76,7 +78,7 @@ static int decorate_callback(const struct option *opt, const char *arg, int unse decoration_style = DECORATE_SHORT_REFS; if (decoration_style < 0) - die("invalid --decorate option: %s", arg); + die(_("invalid --decorate option: %s"), arg); decoration_given = 1; @@ -128,7 +130,7 @@ static void cmd_log_init_finish(int argc, const char **argv, const char *prefix, { OPTION_CALLBACK, 0, "decorate", NULL, NULL, N_("decorate options"), PARSE_OPT_OPTARG, decorate_callback}, OPT_CALLBACK('L', NULL, &line_cb, "n,m:file", - "Process line range n,m in file, counting from 1", + N_("Process line range n,m in file, counting from 1"), log_line_range_callback), OPT_END() }; @@ -148,7 +150,7 @@ static void cmd_log_init_finish(int argc, const char **argv, const char *prefix, /* Any arguments at this point are not recognized */ if (argc > 1) - die("unrecognized argument: %s", argv[1]); + die(_("unrecognized argument: %s"), argv[1]); memset(&w, 0, sizeof(w)); userformat_find_requirements(NULL, &w); @@ -158,13 +160,9 @@ static void cmd_log_init_finish(int argc, const char **argv, const char *prefix, if (rev->show_notes) init_display_notes(&rev->notes_opt); - if (rev->diffopt.pickaxe || rev->diffopt.filter) + if (rev->diffopt.pickaxe || rev->diffopt.filter || + DIFF_OPT_TST(&rev->diffopt, FOLLOW_RENAMES)) rev->always_show_header = 0; - if (DIFF_OPT_TST(&rev->diffopt, FOLLOW_RENAMES)) { - rev->always_show_header = 0; - if (rev->diffopt.pathspec.nr != 1) - usage("git logs can only follow renames on one pathname at a time"); - } if (source) rev->show_source = 1; @@ -349,8 +347,7 @@ static int cmd_log_walk(struct rev_info *rev) rev->max_count++; if (!rev->reflog_info) { /* we allow cycles in reflog ancestry */ - free(commit->buffer); - commit->buffer = NULL; + free_commit_buffer(commit); } free_commit_list(commit->parents); commit->parents = NULL; @@ -371,6 +368,8 @@ static int cmd_log_walk(struct rev_info *rev) static int git_log_config(const char *var, const char *value, void *cb) { + const char *slot_name; + if (!strcmp(var, "format.pretty")) return git_config_string(&fmt_pretty, var, value); if (!strcmp(var, "format.subjectprefix")) @@ -391,8 +390,8 @@ static int git_log_config(const char *var, const char *value, void *cb) default_show_root = git_config_bool(var, value); return 0; } - if (!prefixcmp(var, "color.decorate.")) - return parse_decorate_color_config(var, 15, value); + if (skip_prefix(var, "color.decorate.", &slot_name)) + return parse_decorate_color_config(var, slot_name - var, value); if (!strcmp(var, "log.mailmap")) { use_mailmap_config = git_config_bool(var, value); return 0; @@ -450,13 +449,13 @@ static int show_blob_object(const unsigned char *sha1, struct rev_info *rev, con return stream_blob_to_fd(1, sha1, NULL, 0); if (get_sha1_with_context(obj_name, 0, sha1c, &obj_context)) - die("Not a valid object name %s", obj_name); + die(_("Not a valid object name %s"), obj_name); if (!obj_context.path[0] || !textconv_object(obj_context.path, obj_context.mode, sha1c, 1, &buf, &size)) return stream_blob_to_fd(1, sha1, NULL, 0); if (!buf) - die("git show %s: bad file", obj_name); + die(_("git show %s: bad file"), obj_name); write_or_die(1, buf, size); return 0; @@ -477,7 +476,7 @@ static int show_tag_object(const unsigned char *sha1, struct rev_info *rev) int new_offset = offset + 1; while (new_offset < size && buf[new_offset++] != '\n') ; /* do nothing */ - if (!prefixcmp(buf + offset, "tagger ")) + if (starts_with(buf + offset, "tagger ")) show_tagger(buf + offset + 7, new_offset - offset - 7, rev); offset = new_offset; @@ -503,7 +502,7 @@ static void show_rev_tweak_rev(struct rev_info *rev, struct setup_revision_opt * /* There was no "-m" on the command line */ rev->ignore_merges = 0; if (!rev->first_parent_only && !rev->combine_merges) { - /* No "--first-parent", "-c", nor "--cc" */ + /* No "--first-parent", "-c", or "--cc" */ rev->combine_merges = 1; rev->dense_combined_merges = 1; } @@ -673,6 +672,7 @@ static void add_header(const char *value) static int thread; static int do_signoff; static const char *signature = git_version_string; +static const char *signature_file; static int config_cover_letter; enum { @@ -742,6 +742,8 @@ static int git_format_config(const char *var, const char *value, void *cb) } if (!strcmp(var, "format.signature")) return git_config_string(&signature, var, value); + if (!strcmp(var, "format.signaturefile")) + return git_config_pathname(&signature_file, var, value); if (!strcmp(var, "format.coverletter")) { if (value && !strcasecmp(value, "auto")) { config_cover_letter = COVER_AUTO; @@ -844,8 +846,13 @@ static void gen_message_id(struct rev_info *info, char *base) static void print_signature(void) { - if (signature && *signature) - printf("-- \n%s\n\n", signature); + if (!signature || !*signature) + return; + + printf("-- \n%s", signature); + if (signature[strlen(signature)-1] != '\n') + putchar('\n'); + putchar('\n'); } static void add_branch_description(struct strbuf *buf, const char *branch_name) @@ -856,9 +863,10 @@ static void add_branch_description(struct strbuf *buf, const char *branch_name) read_branch_desc(&desc, branch_name); if (desc.len) { strbuf_addch(buf, '\n'); - strbuf_add(buf, desc.buf, desc.len); + strbuf_addbuf(buf, &desc); strbuf_addch(buf, '\n'); } + strbuf_release(&desc); } static char *find_branch_name(struct rev_info *rev) @@ -866,7 +874,7 @@ static char *find_branch_name(struct rev_info *rev) int i, positive = -1; unsigned char branch_sha1[20]; const unsigned char *tip_sha1; - const char *ref; + const char *ref, *v; char *full_ref, *branch = NULL; for (i = 0; i < rev->cmdline.nr; i++) { @@ -882,9 +890,9 @@ static char *find_branch_name(struct rev_info *rev) ref = rev->cmdline.rev[positive].name; tip_sha1 = rev->cmdline.rev[positive].item->sha1; if (dwim_ref(ref, strlen(ref), branch_sha1, &full_ref) && - !prefixcmp(full_ref, "refs/heads/") && + skip_prefix(full_ref, "refs/heads/", &v) && !hashcmp(tip_sha1, branch_sha1)) - branch = xstrdup(full_ref + strlen("refs/heads/")); + branch = xstrdup(v); free(full_ref); return branch; } @@ -919,9 +927,12 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout, log_write_email_headers(rev, head, &pp.subject, &pp.after_subject, &need_8bit_cte); - for (i = 0; !need_8bit_cte && i < nr; i++) - if (has_non_ascii(list[i]->buffer)) + for (i = 0; !need_8bit_cte && i < nr; i++) { + const char *buf = get_commit_buffer(list[i], NULL); + if (has_non_ascii(buf)) need_8bit_cte = 1; + unuse_commit_buffer(list[i], buf); + } if (!branch_name) branch_name = find_branch_name(rev); @@ -1230,6 +1241,8 @@ 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_FILENAME(0, "signature-file", &signature_file, + N_("add a signature from a file")), OPT__QUIET(&quiet, N_("don't print the patch filenames")), OPT_END() }; @@ -1386,10 +1399,10 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) if (check_head) { unsigned char sha1[20]; - const char *ref; + const char *ref, *v; ref = resolve_ref_unsafe("HEAD", sha1, 1, NULL); - if (ref && !prefixcmp(ref, "refs/heads/")) - branch_name = xstrdup(ref + strlen("refs/heads/")); + if (ref && skip_prefix(ref, "refs/heads/", &v)) + branch_name = xstrdup(v); else branch_name = xstrdup(""); /* no branch */ } @@ -1429,7 +1442,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) continue; nr++; - list = xrealloc(list, nr * sizeof(list[0])); + REALLOC_ARRAY(list, nr); list[nr - 1] = commit; } if (nr == 0) @@ -1447,6 +1460,18 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) cover_letter = (config_cover_letter == COVER_ON); } + if (!signature) { + ; /* --no-signature inhibits all signatures */ + } else if (signature && signature != git_version_string) { + ; /* non-default signature already set */ + } else if (signature_file) { + struct strbuf buf = STRBUF_INIT; + + if (strbuf_read_file(&buf, signature_file, 128) < 0) + die_errno(_("unable to read signature file '%s'"), signature_file); + signature = strbuf_detach(&buf, NULL); + } + if (in_reply_to || thread || cover_letter) rev.ref_message_ids = xcalloc(1, sizeof(struct string_list)); if (in_reply_to) { @@ -1508,8 +1533,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) reopen_stdout(rev.numbered_files ? NULL : commit, NULL, &rev, quiet)) die(_("Failed to create output files")); shown = log_tree_commit(&rev, commit); - free(commit->buffer); - commit->buffer = NULL; + free_commit_buffer(commit); /* We put one extra blank line between formatted * patches and this flag is used by log-tree code diff --git a/builtin/ls-files.c b/builtin/ls-files.c index e1cf6d8547..99cee20fb0 100644 --- a/builtin/ls-files.c +++ b/builtin/ls-files.c @@ -64,7 +64,7 @@ static void show_dir_entry(const char *tag, struct dir_entry *ent) if (len >= ent->len) die("git ls-files: internal error - directory entry not superset of prefix"); - if (!match_pathspec_depth(&pathspec, ent->name, ent->len, len, ps_matched)) + if (!dir_path_match(ent, &pathspec, len, ps_matched)) return; fputs(tag, stdout); @@ -139,7 +139,9 @@ static void show_ce_entry(const char *tag, const struct cache_entry *ce) if (len >= ce_namelen(ce)) die("git ls-files: internal error - cache entry not superset of prefix"); - if (!match_pathspec_depth(&pathspec, ce->name, ce_namelen(ce), len, ps_matched)) + if (!match_pathspec(&pathspec, ce->name, ce_namelen(ce), + len, ps_matched, + S_ISDIR(ce->ce_mode) || S_ISGITLINK(ce->ce_mode))) return; if (tag && *tag && show_valid_bit && @@ -195,7 +197,8 @@ static void show_ru_info(void) len = strlen(path); if (len < max_prefix_len) continue; /* outside of the prefix */ - if (!match_pathspec_depth(&pathspec, path, len, max_prefix_len, ps_matched)) + if (!match_pathspec(&pathspec, path, len, + max_prefix_len, ps_matched, 0)) continue; /* uninterested */ for (i = 0; i < 3; i++) { if (!ui->mode[i]) @@ -471,7 +474,7 @@ int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix) OPT_BOOL('k', "killed", &show_killed, N_("show files on the filesystem that need to be removed")), OPT_BIT(0, "directory", &dir.flags, - N_("show 'other' directories' name only"), + N_("show 'other' directories' names only"), DIR_SHOW_OTHER_DIRECTORIES), OPT_NEGBIT(0, "empty-directory", &dir.flags, N_("don't show empty directories"), diff --git a/builtin/ls-remote.c b/builtin/ls-remote.c index 25e83cfe9d..b2a4b92992 100644 --- a/builtin/ls-remote.c +++ b/builtin/ls-remote.c @@ -22,7 +22,7 @@ static int tail_match(const char **pattern, const char *path) if (snprintf(pathbuf, sizeof(pathbuf), "/%s", path) > sizeof(pathbuf)) return error("insanely long ref %.*s...", 20, path); while ((p = *(pattern++)) != NULL) { - if (!fnmatch(p, pathbuf, 0)) + if (!wildmatch(p, pathbuf, 0, NULL)) return 1; } return 0; @@ -50,11 +50,11 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix) const char *arg = argv[i]; if (*arg == '-') { - if (!prefixcmp(arg, "--upload-pack=")) { + if (starts_with(arg, "--upload-pack=")) { uploadpack = arg + 14; continue; } - if (!prefixcmp(arg, "--exec=")) { + if (starts_with(arg, "--exec=")) { uploadpack = arg + 7; continue; } @@ -92,7 +92,7 @@ int cmd_ls_remote(int argc, const char **argv, const char *prefix) if (argv[i]) { int j; - pattern = xcalloc(sizeof(const char *), argc - i + 1); + pattern = xcalloc(argc - i + 1, sizeof(const char *)); for (j = i; j < argc; j++) { int len = strlen(argv[j]); char *p = xmalloc(len + 3); diff --git a/builtin/ls-tree.c b/builtin/ls-tree.c index 65ec931846..51184dfa2e 100644 --- a/builtin/ls-tree.c +++ b/builtin/ls-tree.c @@ -171,7 +171,7 @@ int cmd_ls_tree(int argc, const char **argv, const char *prefix) * show_recursive() rolls its own matching code and is * generally ignorant of 'struct pathspec'. The magic mask * cannot be lifted until it is converted to use - * match_pathspec_depth() or tree_entry_interesting() + * match_pathspec() or tree_entry_interesting() */ parse_pathspec(&pathspec, PATHSPEC_GLOB | PATHSPEC_ICASE, PATHSPEC_PREFER_CWD, diff --git a/builtin/mailinfo.c b/builtin/mailinfo.c index 24a772d8e1..6a14d2985d 100644 --- a/builtin/mailinfo.c +++ b/builtin/mailinfo.c @@ -288,6 +288,22 @@ static inline int cmp_header(const struct strbuf *line, const char *hdr) 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) { @@ -328,13 +344,13 @@ static int check_header(const struct strbuf *line, } /* for inbody stuff */ - if (!prefixcmp(line->buf, ">From") && isspace(line->buf[5])) { - ret = 1; /* Should this return 0? */ + 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 (!prefixcmp(line->buf, "[PATCH]") && isspace(line->buf[7])) { + if (starts_with(line->buf, "[PATCH]") && isspace(line->buf[7])) { for (i = 0; header[i]; i++) { - if (!memcmp("Subject", header[i], 7)) { + if (!strcmp("Subject", header[i])) { handle_header(&hdr_data[i], line); ret = 1; goto check_header_out; @@ -361,7 +377,7 @@ static int is_rfc2822_header(const struct strbuf *line) char *cp = line->buf; /* Count mbox From headers as headers */ - if (!prefixcmp(cp, "From ") || !prefixcmp(cp, ">From ")) + if (starts_with(cp, "From ") || starts_with(cp, ">From ")) return 1; while ((ch = *cp++)) { @@ -671,11 +687,11 @@ static inline int patchbreak(const struct strbuf *line) size_t i; /* Beginning of a "diff -" header? */ - if (!prefixcmp(line->buf, "diff -")) + if (starts_with(line->buf, "diff -")) return 1; /* CVS "Index: " line? */ - if (!prefixcmp(line->buf, "Index: ")) + if (starts_with(line->buf, "Index: ")) return 1; /* @@ -685,7 +701,7 @@ static inline int patchbreak(const struct strbuf *line) if (line->len < 4) return 0; - if (!prefixcmp(line->buf, "---")) { + if (starts_with(line->buf, "---")) { /* space followed by a filename? */ if (line->buf[3] == ' ' && !isspace(line->buf[4])) return 1; @@ -929,13 +945,13 @@ static void handle_info(void) else continue; - if (!memcmp(header[i], "Subject", 7)) { + if (!strcmp(header[i], "Subject")) { if (!keep_subject) { cleanup_subject(hdr); cleanup_space(hdr); } output_header_lines(fout, "Subject", hdr); - } else if (!memcmp(header[i], "From", 4)) { + } else if (!strcmp(header[i], "From")) { cleanup_space(hdr); handle_from(hdr); fprintf(fout, "Author: %s\n", name.buf); @@ -986,7 +1002,7 @@ static int mailinfo(FILE *in, FILE *out, const char *msg, const char *patch) static int git_mailinfo_config(const char *var, const char *value, void *unused) { - if (prefixcmp(var, "mailinfo.")) + if (!starts_with(var, "mailinfo.")) return git_default_config(var, value, unused); if (!strcmp(var, "mailinfo.scissors")) { use_scissors = git_config_bool(var, value); @@ -1020,7 +1036,7 @@ int cmd_mailinfo(int argc, const char **argv, const char *prefix) metainfo_charset = def_charset; else if (!strcmp(argv[1], "-n")) metainfo_charset = NULL; - else if (!prefixcmp(argv[1], "--encoding=")) + else if (starts_with(argv[1], "--encoding=")) metainfo_charset = argv[1] + 11; else if (!strcmp(argv[1], "--scissors")) use_scissors = 1; diff --git a/builtin/mailsplit.c b/builtin/mailsplit.c index 06296d4bdf..8e02ea109a 100644 --- a/builtin/mailsplit.c +++ b/builtin/mailsplit.c @@ -53,14 +53,15 @@ static int keep_cr; */ static int split_one(FILE *mbox, const char *name, int allow_bare) { - FILE *output = NULL; + FILE *output; int fd; int status = 0; int is_bare = !is_from_line(buf.buf, buf.len); - if (is_bare && !allow_bare) - goto corrupt; - + if (is_bare && !allow_bare) { + fprintf(stderr, "corrupt mailbox\n"); + exit(1); + } fd = open(name, O_WRONLY | O_CREAT | O_EXCL, 0666); if (fd < 0) die_errno("cannot open output file '%s'", name); @@ -91,13 +92,6 @@ static int split_one(FILE *mbox, const char *name, int allow_bare) } fclose(output); return status; - - corrupt: - if (output) - fclose(output); - unlink(name); - fprintf(stderr, "corrupt mailbox\n"); - exit(1); } static int populate_maildir_list(struct string_list *list, const char *path) diff --git a/builtin/merge-base.c b/builtin/merge-base.c index 57ac472716..0ecde8da30 100644 --- a/builtin/merge-base.c +++ b/builtin/merge-base.c @@ -1,6 +1,9 @@ #include "builtin.h" #include "cache.h" #include "commit.h" +#include "refs.h" +#include "diff.h" +#include "revision.h" #include "parse-options.h" static int show_merge_base(struct commit **rev, int rev_nr, int show_all) @@ -27,6 +30,7 @@ static const char * const merge_base_usage[] = { N_("git merge-base [-a|--all] --octopus <commit>..."), N_("git merge-base --independent <commit>..."), N_("git merge-base --is-ancestor <commit> <commit>"), + N_("git merge-base --fork-point <ref> [<commit>]"), NULL }; @@ -102,40 +106,152 @@ static int handle_is_ancestor(int argc, const char **argv) return 1; } +struct rev_collect { + struct commit **commit; + int nr; + int alloc; + unsigned int initial : 1; +}; + +static void add_one_commit(unsigned char *sha1, struct rev_collect *revs) +{ + struct commit *commit; + + if (is_null_sha1(sha1)) + return; + + commit = lookup_commit(sha1); + if (!commit || + (commit->object.flags & TMP_MARK) || + parse_commit(commit)) + return; + + ALLOC_GROW(revs->commit, revs->nr + 1, revs->alloc); + revs->commit[revs->nr++] = commit; + commit->object.flags |= TMP_MARK; +} + +static int collect_one_reflog_ent(unsigned char *osha1, unsigned char *nsha1, + const char *ident, unsigned long timestamp, + int tz, const char *message, void *cbdata) +{ + struct rev_collect *revs = cbdata; + + if (revs->initial) { + revs->initial = 0; + add_one_commit(osha1, revs); + } + add_one_commit(nsha1, revs); + return 0; +} + +static int handle_fork_point(int argc, const char **argv) +{ + unsigned char sha1[20]; + char *refname; + const char *commitname; + struct rev_collect revs; + struct commit *derived; + struct commit_list *bases; + int i, ret = 0; + + switch (dwim_ref(argv[0], strlen(argv[0]), sha1, &refname)) { + case 0: + die("No such ref: '%s'", argv[0]); + case 1: + break; /* good */ + default: + die("Ambiguous refname: '%s'", argv[0]); + } + + commitname = (argc == 2) ? argv[1] : "HEAD"; + if (get_sha1(commitname, sha1)) + die("Not a valid object name: '%s'", commitname); + + derived = lookup_commit_reference(sha1); + memset(&revs, 0, sizeof(revs)); + revs.initial = 1; + for_each_reflog_ent(refname, collect_one_reflog_ent, &revs); + + for (i = 0; i < revs.nr; i++) + revs.commit[i]->object.flags &= ~TMP_MARK; + + bases = get_merge_bases_many(derived, revs.nr, revs.commit, 0); + + /* + * There should be one and only one merge base, when we found + * a common ancestor among reflog entries. + */ + if (!bases || bases->next) { + ret = 1; + goto cleanup_return; + } + + /* And the found one must be one of the reflog entries */ + for (i = 0; i < revs.nr; i++) + if (&bases->item->object == &revs.commit[i]->object) + break; /* found */ + if (revs.nr <= i) { + ret = 1; /* not found */ + goto cleanup_return; + } + + printf("%s\n", sha1_to_hex(bases->item->object.sha1)); + +cleanup_return: + free_commit_list(bases); + return ret; +} + int cmd_merge_base(int argc, const char **argv, const char *prefix) { struct commit **rev; int rev_nr = 0; int show_all = 0; - int octopus = 0; - int reduce = 0; - int is_ancestor = 0; + int cmdmode = 0; struct option options[] = { OPT_BOOL('a', "all", &show_all, N_("output all common ancestors")), - OPT_BOOL(0, "octopus", &octopus, N_("find ancestors for a single n-way merge")), - OPT_BOOL(0, "independent", &reduce, N_("list revs not reachable from others")), - OPT_BOOL(0, "is-ancestor", &is_ancestor, - N_("is the first one ancestor of the other?")), + OPT_CMDMODE(0, "octopus", &cmdmode, + N_("find ancestors for a single n-way merge"), 'o'), + OPT_CMDMODE(0, "independent", &cmdmode, + N_("list revs not reachable from others"), 'r'), + OPT_CMDMODE(0, "is-ancestor", &cmdmode, + N_("is the first one ancestor of the other?"), 'a'), + OPT_CMDMODE(0, "fork-point", &cmdmode, + N_("find where <commit> forked from reflog of <ref>"), 'f'), OPT_END() }; git_config(git_default_config, NULL); argc = parse_options(argc, argv, prefix, options, merge_base_usage, 0); - if (!octopus && !reduce && argc < 2) - usage_with_options(merge_base_usage, options); - if (is_ancestor && (show_all || octopus || reduce)) - die("--is-ancestor cannot be used with other options"); - if (is_ancestor) + + if (cmdmode == 'a') { + if (argc < 2) + usage_with_options(merge_base_usage, options); + if (show_all) + die("--is-ancestor cannot be used with --all"); return handle_is_ancestor(argc, argv); - if (reduce && (show_all || octopus)) - die("--independent cannot be used with other options"); + } - if (octopus) + if (cmdmode == 'r' && show_all) + die("--independent cannot be used with --all"); + + if (cmdmode == 'o') return handle_octopus(argc, argv, show_all); - else if (reduce) + + if (cmdmode == 'r') return handle_independent(argc, argv); + if (cmdmode == 'f') { + if (argc < 1 || 2 < argc) + usage_with_options(merge_base_usage, options); + return handle_fork_point(argc, argv); + } + + if (argc < 2) + usage_with_options(merge_base_usage, options); + rev = xmalloc(argc * sizeof(*rev)); while (argc-- > 0) rev[rev_nr++] = get_commit_reference(*argv++); diff --git a/builtin/merge-recursive.c b/builtin/merge-recursive.c index 3a64f5d0bd..a90f28f34d 100644 --- a/builtin/merge-recursive.c +++ b/builtin/merge-recursive.c @@ -29,7 +29,7 @@ int cmd_merge_recursive(int argc, const char **argv, const char *prefix) struct commit *result; init_merge_options(&o); - if (argv[0] && !suffixcmp(argv[0], "-subtree")) + if (argv[0] && ends_with(argv[0], "-subtree")) o.subtree_shift = ""; if (argc < 4) @@ -38,7 +38,7 @@ int cmd_merge_recursive(int argc, const char **argv, const char *prefix) for (i = 1; i < argc; ++i) { const char *arg = argv[i]; - if (!prefixcmp(arg, "--")) { + if (starts_with(arg, "--")) { if (!arg[2]) break; if (parse_merge_opt(&o, arg + 2)) diff --git a/builtin/merge-tree.c b/builtin/merge-tree.c index 61cbde4094..f9ab48597e 100644 --- a/builtin/merge-tree.c +++ b/builtin/merge-tree.c @@ -25,7 +25,7 @@ static void add_merge_entry(struct merge_list *entry) merge_result_end = &entry->next; } -static void merge_trees_recursive(struct tree_desc t[3], const char *base, int df_conflict); +static void merge_trees(struct tree_desc t[3], const char *base); static const char *explanation(struct merge_list *entry) { @@ -195,8 +195,8 @@ static void resolve(const struct traverse_info *info, struct name_entry *ours, s add_merge_entry(final); } -static void unresolved_directory(const struct traverse_info *info, struct name_entry n[3], - int df_conflict) +static void unresolved_directory(const struct traverse_info *info, + struct name_entry n[3]) { char *newbase; struct name_entry *p; @@ -218,7 +218,7 @@ static void unresolved_directory(const struct traverse_info *info, struct name_e buf2 = fill_tree_descriptor(t+2, ENTRY_SHA1(n + 2)); #undef ENTRY_SHA1 - merge_trees_recursive(t, newbase, df_conflict); + merge_trees(t, newbase); free(buf0); free(buf1); @@ -259,7 +259,7 @@ static void unresolved(const struct traverse_info *info, struct name_entry n[3]) dirmask |= (1 << i); } - unresolved_directory(info, n, dirmask && (dirmask != mask)); + unresolved_directory(info, n); if (dirmask == mask) return; @@ -335,21 +335,15 @@ static int threeway_callback(int n, unsigned long mask, unsigned long dirmask, s return mask; } -static void merge_trees_recursive(struct tree_desc t[3], const char *base, int df_conflict) +static void merge_trees(struct tree_desc t[3], const char *base) { struct traverse_info info; setup_traverse_info(&info, base); - info.data = &df_conflict; info.fn = threeway_callback; traverse_trees(3, t, &info); } -static void merge_trees(struct tree_desc t[3], const char *base) -{ - merge_trees_recursive(t, base, 0); -} - static void *get_tree_descriptor(struct tree_desc *desc, const char *rev) { unsigned char sha1[20]; diff --git a/builtin/merge.c b/builtin/merge.c index 41fb66dec2..4513fadc5f 100644 --- a/builtin/merge.c +++ b/builtin/merge.c @@ -9,6 +9,7 @@ #include "cache.h" #include "parse-options.h" #include "builtin.h" +#include "lockfile.h" #include "run-command.h" #include "diff.h" #include "refs.h" @@ -63,7 +64,7 @@ static int verbosity; static int allow_rerere_auto; static int abort_current_merge; static int show_progress = -1; -static int default_to_upstream; +static int default_to_upstream = 1; static const char *sign_commit; static struct strategy all_strategy[] = { @@ -220,7 +221,7 @@ static struct option builtin_merge_options[] = { OPT_BOOL(0, "abort", &abort_current_merge, N_("abort the current in-progress merge")), OPT_SET_INT(0, "progress", &show_progress, N_("force progress reporting"), 1), - { OPTION_STRING, 'S', "gpg-sign", &sign_commit, N_("key id"), + { OPTION_STRING, 'S', "gpg-sign", &sign_commit, N_("key-id"), N_("GPG sign commit"), PARSE_OPT_OPTARG, NULL, (intptr_t) "" }, OPT_BOOL(0, "overwrite-ignore", &overwrite_ignore, N_("update ignored files (default)")), OPT_END() @@ -237,11 +238,10 @@ static void drop_save(void) static int save_state(unsigned char *stash) { int len; - struct child_process cp; + struct child_process cp = CHILD_PROCESS_INIT; struct strbuf buffer = STRBUF_INIT; const char *argv[] = {"stash", "create", NULL}; - memset(&cp, 0, sizeof(cp)); cp.argv = argv; cp.out = -1; cp.git_cmd = 1; @@ -367,7 +367,7 @@ static void squash_message(struct commit *commit, struct commit_list *remotehead sha1_to_hex(commit->object.sha1)); pretty_print_commit(&ctx, commit, &out); } - if (write(fd, out.buf, out.len) < 0) + if (write_in_full(fd, out.buf, out.len) != out.len) die_errno(_("Writing SQUASH_MSG")); if (close(fd)) die_errno(_("Finishing SQUASH_MSG")); @@ -398,7 +398,7 @@ static void finish(struct commit *head_commit, const char *argv_gc_auto[] = { "gc", "--auto", NULL }; update_ref(reflog_message.buf, "HEAD", new_head, head, 0, - DIE_ON_ERR); + UPDATE_REFS_DIE_ON_ERR); /* * We ignore errors in 'gc --auto', since the * user should see them. @@ -421,7 +421,7 @@ static void finish(struct commit *head_commit, } /* Run a post-merge hook */ - run_hook(NULL, "post-merge", squash ? "1" : "0", NULL); + run_hook_le(NULL, "post-merge", squash ? "1" : "0", NULL); strbuf_release(&reflog_message); } @@ -446,17 +446,17 @@ static void merge_name(const char *remote, struct strbuf *msg) die(_("'%s' does not point to a commit"), remote); if (dwim_ref(remote, strlen(remote), branch_head, &found_ref) > 0) { - if (!prefixcmp(found_ref, "refs/heads/")) { + if (starts_with(found_ref, "refs/heads/")) { strbuf_addf(msg, "%s\t\tbranch '%s' of .\n", sha1_to_hex(branch_head), remote); goto cleanup; } - if (!prefixcmp(found_ref, "refs/tags/")) { + if (starts_with(found_ref, "refs/tags/")) { strbuf_addf(msg, "%s\t\ttag '%s' of .\n", sha1_to_hex(branch_head), remote); goto cleanup; } - if (!prefixcmp(found_ref, "refs/remotes/")) { + if (starts_with(found_ref, "refs/remotes/")) { strbuf_addf(msg, "%s\t\tremote-tracking branch '%s' of .\n", sha1_to_hex(branch_head), remote); goto cleanup; @@ -557,7 +557,7 @@ static void parse_branch_merge_options(char *bmo) if (argc < 0) die(_("Bad branch.%s.mergeoptions string: %s"), branch, split_cmdline_strerror(argc)); - argv = xrealloc(argv, sizeof(*argv) * (argc + 2)); + REALLOC_ARRAY(argv, argc + 2); memmove(argv + 1, argv, sizeof(*argv) * (argc + 1)); argc++; argv[0] = "branch.*.mergeoptions"; @@ -570,8 +570,8 @@ static int git_merge_config(const char *k, const char *v, void *cb) { int status; - if (branch && !prefixcmp(k, "branch.") && - !prefixcmp(k + 7, branch) && + if (branch && starts_with(k, "branch.") && + starts_with(k + 7, branch) && !strcmp(k + 7 + strlen(branch), ".mergeoptions")) { free(branch_mergeoptions); branch_mergeoptions = xstrdup(v); @@ -597,6 +597,9 @@ static int git_merge_config(const char *k, const char *v, void *cb) } else if (!strcmp(k, "merge.defaulttoupstream")) { default_to_upstream = git_config_bool(k, v); return 0; + } else if (!strcmp(k, "commit.gpgsign")) { + sign_commit = git_config_bool(k, v) ? "" : NULL; + return 0; } status = fmt_merge_msg_config(k, v, cb); @@ -654,22 +657,18 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common, struct commit_list *remoteheads, struct commit *head, const char *head_arg) { - int index_fd; - struct lock_file *lock = xcalloc(1, sizeof(struct lock_file)); + static struct lock_file lock; - index_fd = hold_locked_index(lock, 1); + hold_locked_index(&lock, 1); refresh_cache(REFRESH_QUIET); if (active_cache_changed && - (write_cache(index_fd, active_cache, active_nr) || - commit_locked_index(lock))) + write_locked_index(&the_index, &lock, COMMIT_LOCK)) return error(_("Unable to write index.")); - rollback_lock_file(lock); + rollback_lock_file(&lock); if (!strcmp(strategy, "recursive") || !strcmp(strategy, "subtree")) { int clean, x; struct commit *result; - struct lock_file *lock = xcalloc(1, sizeof(struct lock_file)); - int index_fd; struct commit_list *reversed = NULL; struct merge_options o; struct commit_list *j; @@ -697,14 +696,13 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common, for (j = common; j; j = j->next) commit_list_insert(j->item, &reversed); - index_fd = hold_locked_index(lock, 1); + hold_locked_index(&lock, 1); clean = merge_recursive(&o, head, remoteheads->item, reversed, &result); if (active_cache_changed && - (write_cache(index_fd, active_cache, active_nr) || - commit_locked_index(lock))) + write_locked_index(&the_index, &lock, COMMIT_LOCK)) die (_("unable to write %s"), get_index_file()); - rollback_lock_file(lock); + rollback_lock_file(&lock); return clean ? 0 : 1; } else { return try_merge_command(strategy, xopts_nr, xopts, @@ -821,8 +819,8 @@ static void prepare_to_commit(struct commit_list *remoteheads) if (0 < option_edit) strbuf_commented_addf(&msg, _(merge_editor_comment), comment_line_char); write_merge_msg(&msg); - if (run_hook(get_index_file(), "prepare-commit-msg", - git_path("MERGE_MSG"), "merge", NULL, NULL)) + if (run_commit_hook(0 < option_edit, get_index_file(), "prepare-commit-msg", + git_path("MERGE_MSG"), "merge", NULL)) abort_commit(remoteheads, NULL); if (0 < option_edit) { if (launch_editor(git_path("MERGE_MSG"), NULL, NULL)) @@ -840,17 +838,15 @@ 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 commit_list *parent = xmalloc(sizeof(*parent)); + struct commit_list *parents, **pptr = &parents; write_tree_trivial(result_tree); printf(_("Wonderful.\n")); - parent->item = head; - parent->next = xmalloc(sizeof(*parent->next)); - parent->next->item = remoteheads->item; - parent->next->next = NULL; + pptr = commit_list_append(head, pptr); + pptr = commit_list_append(remoteheads->item, pptr); prepare_to_commit(remoteheads); - if (commit_tree(&merge_msg, result_tree, parent, result_commit, NULL, - sign_commit)) + if (commit_tree(merge_msg.buf, merge_msg.len, result_tree, parents, + result_commit, NULL, sign_commit)) die(_("failed to write commit object")); finish(head, remoteheads, result_commit, "In-index merge"); drop_save(); @@ -874,8 +870,8 @@ 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, result_tree, parents, result_commit, - NULL, sign_commit)) + if (commit_tree(merge_msg.buf, merge_msg.len, result_tree, parents, + result_commit, NULL, sign_commit)) die(_("failed to write commit object")); strbuf_addf(&buf, "Merge made by the '%s' strategy.", wt_strategy); finish(head, remoteheads, result_commit, buf.buf); @@ -1106,7 +1102,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix) * current branch. */ branch = branch_to_free = resolve_refdup("HEAD", head_sha1, 0, &flag); - if (branch && !prefixcmp(branch, "refs/heads/")) + if (branch && starts_with(branch, "refs/heads/")) branch += 11; if (!branch || is_null_sha1(head_sha1)) head_commit = NULL; @@ -1147,14 +1143,14 @@ int cmd_merge(int argc, const char **argv, const char *prefix) */ if (advice_resolve_conflict) die(_("You have not concluded your merge (MERGE_HEAD exists).\n" - "Please, commit your changes before you can merge.")); + "Please, commit your changes before you merge.")); else die(_("You have not concluded your merge (MERGE_HEAD exists).")); } if (file_exists(git_path("CHERRY_PICK_HEAD"))) { if (advice_resolve_conflict) die(_("You have not concluded your cherry-pick (CHERRY_PICK_HEAD exists).\n" - "Please, commit your changes before you can merge.")); + "Please, commit your changes before you merge.")); else die(_("You have not concluded your cherry-pick (CHERRY_PICK_HEAD exists).")); } @@ -1219,7 +1215,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix) die(_("%s - not something we can merge"), argv[0]); read_empty(remote_head->object.sha1, 0); update_ref("initial pull", "HEAD", remote_head->object.sha1, - NULL, 0, DIE_ON_ERR); + NULL, 0, UPDATE_REFS_DIE_ON_ERR); goto done; } else { struct strbuf merge_names = STRBUF_INIT; @@ -1279,10 +1275,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix) printf(_("Commit %s has a good GPG signature by %s\n"), hex, signature_check.signer); - free(signature_check.gpg_output); - free(signature_check.gpg_status); - free(signature_check.signer); - free(signature_check.key); + signature_check_clear(&signature_check); } } @@ -1336,7 +1329,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix) } update_ref("updating ORIG_HEAD", "ORIG_HEAD", head_commit->object.sha1, - NULL, 0, DIE_ON_ERR); + NULL, 0, UPDATE_REFS_DIE_ON_ERR); if (remoteheads && !common) ; /* No common ancestors found. We need a real merge. */ diff --git a/builtin/mktree.c b/builtin/mktree.c index f92ba404ab..a964d6be52 100644 --- a/builtin/mktree.c +++ b/builtin/mktree.c @@ -23,10 +23,7 @@ static void append_to_tree(unsigned mode, unsigned char *sha1, char *path) if (strchr(path, '/')) die("path %s contains slash", path); - if (alloc <= used) { - alloc = alloc_nr(used); - entries = xrealloc(entries, sizeof(*entries) * alloc); - } + ALLOC_GROW(entries, used + 1, alloc); ent = entries[used++] = xmalloc(sizeof(**entries) + len + 1); ent->mode = mode; ent->len = len; diff --git a/builtin/mv.c b/builtin/mv.c index 21c46d1636..563d05ba1a 100644 --- a/builtin/mv.c +++ b/builtin/mv.c @@ -3,8 +3,8 @@ * * Copyright (C) 2006 Johannes Schindelin */ -#include "cache.h" #include "builtin.h" +#include "lockfile.h" #include "dir.h" #include "cache-tree.h" #include "string-list.h" @@ -61,9 +61,49 @@ static const char *add_slash(const char *path) static struct lock_file lock_file; #define SUBMODULE_WITH_GITDIR ((const char *)1) +static void prepare_move_submodule(const char *src, int first, + const char **submodule_gitfile) +{ + struct strbuf submodule_dotgit = STRBUF_INIT; + if (!S_ISGITLINK(active_cache[first]->ce_mode)) + die(_("Directory %s is in index and no submodule?"), src); + if (!is_staging_gitmodules_ok()) + die(_("Please stage your changes to .gitmodules or stash them to proceed")); + strbuf_addf(&submodule_dotgit, "%s/.git", src); + *submodule_gitfile = read_gitfile(submodule_dotgit.buf); + if (*submodule_gitfile) + *submodule_gitfile = xstrdup(*submodule_gitfile); + else + *submodule_gitfile = SUBMODULE_WITH_GITDIR; + strbuf_release(&submodule_dotgit); +} + +static int index_range_of_same_dir(const char *src, int length, + int *first_p, int *last_p) +{ + const char *src_w_slash = add_slash(src); + int first, last, len_w_slash = length + 1; + + first = cache_name_pos(src_w_slash, len_w_slash); + if (first >= 0) + die(_("%.*s is in index"), len_w_slash, src_w_slash); + + first = -1 - first; + for (last = first; last < active_nr; last++) { + const char *path = active_cache[last]->name; + if (strncmp(path, src_w_slash, len_w_slash)) + break; + } + if (src_w_slash != src) + free((char *)src_w_slash); + *first_p = first; + *last_p = last; + return last - first; +} + int cmd_mv(int argc, const char **argv, const char *prefix) { - int i, newfd, gitmodules_modified = 0; + int i, 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")), @@ -85,7 +125,7 @@ int cmd_mv(int argc, const char **argv, const char *prefix) if (--argc < 1) usage_with_options(builtin_mv_usage, builtin_mv_options); - newfd = hold_locked_index(&lock_file, 1); + hold_locked_index(&lock_file, 1); if (read_cache() < 0) die(_("index file corrupt")); @@ -108,7 +148,7 @@ int cmd_mv(int argc, const char **argv, const char *prefix) destination = internal_copy_pathspec(dest_path[0], argv, argc, DUP_BASENAME); } else { if (argc != 1) - die("destination '%s' is not a directory", dest_path[0]); + die(_("destination '%s' is not a directory"), dest_path[0]); destination = dest_path; } @@ -131,74 +171,41 @@ int cmd_mv(int argc, const char **argv, const char *prefix) && lstat(dst, &st) == 0) bad = _("cannot move directory over file"); else if (src_is_dir) { - int first = cache_name_pos(src, length); - if (first >= 0) { - struct strbuf submodule_dotgit = STRBUF_INIT; - if (!S_ISGITLINK(active_cache[first]->ce_mode)) - die (_("Huh? Directory %s is in index and no submodule?"), src); - if (!is_staging_gitmodules_ok()) - die (_("Please, stage your changes to .gitmodules or stash them to proceed")); - strbuf_addf(&submodule_dotgit, "%s/.git", src); - submodule_gitfile[i] = read_gitfile(submodule_dotgit.buf); - if (submodule_gitfile[i]) - submodule_gitfile[i] = xstrdup(submodule_gitfile[i]); - else - submodule_gitfile[i] = SUBMODULE_WITH_GITDIR; - strbuf_release(&submodule_dotgit); - } else { - const char *src_w_slash = add_slash(src); - int last, len_w_slash = length + 1; + int first = cache_name_pos(src, length), last; - modes[i] = WORKING_DIRECTORY; + if (first >= 0) + prepare_move_submodule(src, first, + submodule_gitfile + i); + else if (index_range_of_same_dir(src, length, + &first, &last) < 1) + bad = _("source directory is empty"); + else { /* last - first >= 1 */ + int j, dst_len, n; - first = cache_name_pos(src_w_slash, len_w_slash); - if (first >= 0) - die (_("Huh? %.*s is in index?"), - len_w_slash, src_w_slash); - - first = -1 - first; - for (last = first; last < active_nr; last++) { - const char *path = active_cache[last]->name; - if (strncmp(path, src_w_slash, len_w_slash)) - break; - } - free((char *)src_w_slash); - - if (last - first < 1) - bad = _("source directory is empty"); - else { - int j, dst_len; - - if (last - first > 0) { - source = xrealloc(source, - (argc + last - first) - * sizeof(char *)); - destination = xrealloc(destination, - (argc + last - first) - * sizeof(char *)); - modes = xrealloc(modes, - (argc + last - first) - * sizeof(enum update_mode)); - } + modes[i] = WORKING_DIRECTORY; + n = argc + last - first; + REALLOC_ARRAY(source, n); + REALLOC_ARRAY(destination, n); + REALLOC_ARRAY(modes, n); + REALLOC_ARRAY(submodule_gitfile, n); - dst = add_slash(dst); - dst_len = strlen(dst); + dst = add_slash(dst); + dst_len = strlen(dst); - for (j = 0; j < last - first; j++) { - const char *path = - active_cache[first + j]->name; - source[argc + j] = path; - destination[argc + j] = - prefix_path(dst, dst_len, - path + length + 1); - modes[argc + j] = INDEX; - } - argc += last - first; + for (j = 0; j < last - first; j++) { + const char *path = active_cache[first + j]->name; + source[argc + j] = path; + destination[argc + j] = + prefix_path(dst, dst_len, path + length + 1); + modes[argc + j] = INDEX; + submodule_gitfile[argc + j] = NULL; } + argc += last - first; } } else if (cache_name_pos(src, length) < 0) bad = _("not under version control"); - else if (lstat(dst, &st) == 0) { + else if (lstat(dst, &st) == 0 && + (!ignore_case || strcasecmp(src, dst))) { bad = _("destination exists"); if (force) { /* @@ -219,19 +226,22 @@ int cmd_mv(int argc, const char **argv, const char *prefix) else string_list_insert(&src_for_dst, dst); - if (bad) { - if (ignore_errors) { - if (--argc > 0) { - memmove(source + i, source + i + 1, - (argc - i) * sizeof(char *)); - memmove(destination + i, - destination + i + 1, - (argc - i) * sizeof(char *)); - i--; - } - } else - die (_("%s, source=%s, destination=%s"), - bad, src, dst); + if (!bad) + continue; + if (!ignore_errors) + die(_("%s, source=%s, destination=%s"), + bad, src, dst); + if (--argc > 0) { + int n = argc - i; + memmove(source + i, source + i + 1, + n * sizeof(char *)); + memmove(destination + i, destination + i + 1, + n * sizeof(char *)); + memmove(modes + i, modes + i + 1, + n * sizeof(enum update_mode)); + memmove(submodule_gitfile + i, submodule_gitfile + i + 1, + n * sizeof(char *)); + i--; } } @@ -243,7 +253,7 @@ int cmd_mv(int argc, const char **argv, const char *prefix) 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); + 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]); @@ -264,11 +274,9 @@ int cmd_mv(int argc, const char **argv, const char *prefix) if (gitmodules_modified) stage_updated_gitmodules(); - if (active_cache_changed) { - if (write_cache(newfd, active_cache, active_nr) || - commit_locked_index(&lock_file)) - die(_("Unable to write new index file")); - } + if (active_cache_changed && + write_locked_index(&the_index, &lock_file, COMMIT_LOCK)) + die(_("Unable to write new index file")); return 0; } diff --git a/builtin/name-rev.c b/builtin/name-rev.c index 20fcf8c696..3c8f319be6 100644 --- a/builtin/name-rev.c +++ b/builtin/name-rev.c @@ -27,17 +27,13 @@ static void name_rev(struct commit *commit, struct commit_list *parents; int parent_number = 1; - if (!commit->object.parsed) - parse_commit(commit); + parse_commit(commit); if (commit->date < cutoff) return; if (deref) { - char *new_name = xmalloc(strlen(tip_name)+3); - strcpy(new_name, tip_name); - strcat(new_name, "^0"); - tip_name = new_name; + tip_name = xstrfmt("%s^0", tip_name); if (generation) die("generation: %d, but deref?", generation); @@ -88,7 +84,7 @@ static int subpath_matches(const char *path, const char *filter) const char *subpath = path; while (subpath) { - if (!fnmatch(filter, subpath, 0)) + if (!wildmatch(filter, subpath, 0, NULL)) return subpath - path; subpath = strchr(subpath, '/'); if (subpath) @@ -101,9 +97,9 @@ static const char *name_ref_abbrev(const char *refname, int shorten_unambiguous) { if (shorten_unambiguous) refname = shorten_unambiguous_ref(refname, 0); - else if (!prefixcmp(refname, "refs/heads/")) + else if (starts_with(refname, "refs/heads/")) refname = refname + 11; - else if (!prefixcmp(refname, "refs/")) + else if (starts_with(refname, "refs/")) refname = refname + 5; return refname; } @@ -149,7 +145,7 @@ static int name_ref(const char *path, const unsigned char *sha1, int flags, void int can_abbreviate_output = data->tags_only && data->name_only; int deref = 0; - if (data->tags_only && prefixcmp(path, "refs/tags/")) + if (data->tags_only && !starts_with(path, "refs/tags/")) return 0; if (data->ref_filter) { diff --git a/builtin/notes.c b/builtin/notes.c index d459e23c42..67d0bb14f8 100644 --- a/builtin/notes.c +++ b/builtin/notes.c @@ -122,12 +122,11 @@ static void write_commented_object(int fd, const unsigned char *object) { const char *show_args[5] = {"show", "--stat", "--no-notes", sha1_to_hex(object), NULL}; - struct child_process show; + struct child_process show = CHILD_PROCESS_INIT; struct strbuf buf = STRBUF_INIT; struct strbuf cbuf = STRBUF_INIT; /* Invoke "git show --stat --no-notes $object" */ - memset(&show, 0, sizeof(show)); show.argv = show_args; show.no_stdin = 1; show.out = -1; @@ -211,7 +210,7 @@ static void create_note(const unsigned char *object, struct msg_arg *msg, if (write_sha1_file(msg->buf.buf, msg->buf.len, blob_type, result)) { error(_("unable to write note object")); if (path) - error(_("The note contents has been left in %s"), + error(_("The note contents have been left in %s"), path); exit(128); } @@ -269,7 +268,11 @@ static int parse_reuse_arg(const struct option *opt, const char *arg, int unset) die(_("Failed to resolve '%s' as a valid ref."), arg); if (!(buf = read_sha1_file(object, &type, &len)) || !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); } strbuf_add(&(msg->buf), buf, len); free(buf); @@ -347,7 +350,7 @@ static struct notes_tree *init_notes_check(const char *subcommand) init_notes(NULL, NULL, NULL, 0); t = &default_notes_tree; - if (prefixcmp(t->ref, "refs/notes/")) + if (!starts_with(t->ref, "refs/notes/")) die("Refusing to %s notes in %s (outside of refs/notes/)", subcommand, t->ref); return t; @@ -713,7 +716,7 @@ static int merge_commit(struct notes_merge_options *o) strbuf_insert(&msg, 0, "notes: ", 7); update_ref(msg.buf, o->local_ref, sha1, is_null_sha1(parent_sha1) ? NULL : parent_sha1, - 0, DIE_ON_ERR); + 0, UPDATE_REFS_DIE_ON_ERR); free_notes(t); strbuf_release(&msg); @@ -808,11 +811,11 @@ static int merge(int argc, const char **argv, const char *prefix) if (result >= 0) /* Merge resulted (trivially) in result_sha1 */ /* Update default notes ref with new commit */ update_ref(msg.buf, default_notes_ref(), result_sha1, NULL, - 0, DIE_ON_ERR); + 0, UPDATE_REFS_DIE_ON_ERR); else { /* Merge has unresolved conflicts */ /* Update .git/NOTES_MERGE_PARTIAL with partial merge result */ update_ref(msg.buf, "NOTES_MERGE_PARTIAL", result_sha1, NULL, - 0, DIE_ON_ERR); + 0, UPDATE_REFS_DIE_ON_ERR); /* Store ref-to-be-updated into .git/NOTES_MERGE_REF */ if (create_symref("NOTES_MERGE_REF", default_notes_ref(), NULL)) die("Failed to store link to current notes ref (%s)", @@ -935,7 +938,7 @@ int cmd_notes(int argc, const char **argv, const char *prefix) int result; const char *override_notes_ref = NULL; struct option options[] = { - OPT_STRING(0, "ref", &override_notes_ref, N_("notes_ref"), + OPT_STRING(0, "ref", &override_notes_ref, N_("notes-ref"), N_("use notes from <notes_ref>")), OPT_END() }; diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c index 36273dd6f0..d39193453a 100644 --- a/builtin/pack-objects.c +++ b/builtin/pack-objects.c @@ -14,10 +14,12 @@ #include "diff.h" #include "revision.h" #include "list-objects.h" +#include "pack-objects.h" #include "progress.h" #include "refs.h" #include "streaming.h" #include "thread-utils.h" +#include "pack-bitmap.h" static const char *pack_usage[] = { N_("git pack-objects --stdout [options...] [< ref-list | < object-list]"), @@ -25,42 +27,15 @@ static const char *pack_usage[] = { NULL }; -struct object_entry { - struct pack_idx_entry idx; - unsigned long size; /* uncompressed size */ - struct packed_git *in_pack; /* already in pack */ - off_t in_pack_offset; - struct object_entry *delta; /* delta base object */ - struct object_entry *delta_child; /* deltified objects who bases me */ - struct object_entry *delta_sibling; /* other deltified objects who - * uses the same base as me - */ - void *delta_data; /* cached delta (uncompressed) */ - unsigned long delta_size; /* delta data size (uncompressed) */ - unsigned long z_delta_size; /* delta data size (compressed) */ - enum object_type type; - enum object_type in_pack_type; /* could be delta */ - uint32_t hash; /* name hint hash */ - unsigned char in_pack_header_size; - unsigned preferred_base:1; /* - * we do not pack this, but is available - * to be used as the base object to delta - * objects against. - */ - unsigned no_try_delta:1; - unsigned tagged:1; /* near the very tip of refs */ - unsigned filled:1; /* assigned write-order */ -}; - /* - * Objects we are going to pack are collected in objects array (dynamically - * expanded). nr_objects & nr_alloc controls this array. They are stored - * in the order we see -- typically rev-list --objects order that gives us - * nice "minimum seek" order. + * Objects we are going to pack are collected in the `to_pack` structure. + * It contains an array (dynamically expanded) of the object data, and a map + * that can resolve SHA1s to their position in the array. */ -static struct object_entry *objects; +static struct packing_data to_pack; + static struct pack_idx_entry **written_list; -static uint32_t nr_objects, nr_alloc, nr_result, nr_written; +static uint32_t nr_result, nr_written; static int non_empty; static int reuse_delta = 1, reuse_object = 1; @@ -83,6 +58,14 @@ static struct progress *progress_state; static int pack_compression_level = Z_DEFAULT_COMPRESSION; static int pack_compression_seen; +static struct packed_git *reuse_packfile; +static uint32_t reuse_packfile_objects; +static off_t reuse_packfile_offset; + +static int use_bitmap_index = 1; +static int write_bitmap_index; +static uint16_t write_bitmap_options; + static unsigned long delta_cache_size = 0; static unsigned long max_delta_cache_size = 256 * 1024 * 1024; static unsigned long cache_max_small_delta_size = 1000; @@ -90,20 +73,27 @@ static unsigned long cache_max_small_delta_size = 1000; static unsigned long window_memory_limit = 0; /* - * The object names in objects array are hashed with this hashtable, - * to help looking up the entry by object name. - * This hashtable is built after all the objects are seen. - */ -static int *object_ix; -static int object_ix_hashsz; -static struct object_entry *locate_object_entry(const unsigned char *sha1); - -/* * stats */ static uint32_t written, written_delta; static uint32_t reused, reused_delta; +/* + * Indexed commits + */ +static struct commit **indexed_commits; +static unsigned int indexed_commits_nr; +static unsigned int indexed_commits_alloc; + +static void index_commit_for_bitmap(struct commit *commit) +{ + if (indexed_commits_nr >= indexed_commits_alloc) { + indexed_commits_alloc = (indexed_commits_alloc + 32) * 2; + REALLOC_ARRAY(indexed_commits, indexed_commits_alloc); + } + + indexed_commits[indexed_commits_nr++] = commit; +} static void *get_delta(struct object_entry *entry) { @@ -553,12 +543,12 @@ static int mark_tagged(const char *path, const unsigned char *sha1, int flag, void *cb_data) { unsigned char peeled[20]; - struct object_entry *entry = locate_object_entry(sha1); + struct object_entry *entry = packlist_find(&to_pack, sha1, NULL); if (entry) entry->tagged = 1; if (!peel_ref(path, peeled)) { - entry = locate_object_entry(peeled); + entry = packlist_find(&to_pack, peeled, NULL); if (entry) entry->tagged = 1; } @@ -633,9 +623,10 @@ static struct object_entry **compute_write_order(void) { unsigned int i, wo_end, last_untagged; - struct object_entry **wo = xmalloc(nr_objects * sizeof(*wo)); + struct object_entry **wo = xmalloc(to_pack.nr_objects * sizeof(*wo)); + struct object_entry *objects = to_pack.objects; - for (i = 0; i < nr_objects; i++) { + for (i = 0; i < to_pack.nr_objects; i++) { objects[i].tagged = 0; objects[i].filled = 0; objects[i].delta_child = NULL; @@ -647,7 +638,7 @@ static struct object_entry **compute_write_order(void) * Make sure delta_sibling is sorted in the original * recency order. */ - for (i = nr_objects; i > 0;) { + for (i = to_pack.nr_objects; i > 0;) { struct object_entry *e = &objects[--i]; if (!e->delta) continue; @@ -665,7 +656,7 @@ static struct object_entry **compute_write_order(void) * Give the objects in the original recency order until * we see a tagged tip. */ - for (i = wo_end = 0; i < nr_objects; i++) { + for (i = wo_end = 0; i < to_pack.nr_objects; i++) { if (objects[i].tagged) break; add_to_write_order(wo, &wo_end, &objects[i]); @@ -675,7 +666,7 @@ static struct object_entry **compute_write_order(void) /* * Then fill all the tagged tips. */ - for (; i < nr_objects; i++) { + for (; i < to_pack.nr_objects; i++) { if (objects[i].tagged) add_to_write_order(wo, &wo_end, &objects[i]); } @@ -683,7 +674,7 @@ static struct object_entry **compute_write_order(void) /* * And then all remaining commits and tags. */ - for (i = last_untagged; i < nr_objects; i++) { + for (i = last_untagged; i < to_pack.nr_objects; i++) { if (objects[i].type != OBJ_COMMIT && objects[i].type != OBJ_TAG) continue; @@ -693,7 +684,7 @@ static struct object_entry **compute_write_order(void) /* * And then all the trees. */ - for (i = last_untagged; i < nr_objects; i++) { + for (i = last_untagged; i < to_pack.nr_objects; i++) { if (objects[i].type != OBJ_TREE) continue; add_to_write_order(wo, &wo_end, &objects[i]); @@ -702,17 +693,70 @@ static struct object_entry **compute_write_order(void) /* * Finally all the rest in really tight order */ - for (i = last_untagged; i < nr_objects; i++) { + for (i = last_untagged; i < to_pack.nr_objects; i++) { if (!objects[i].filled) add_family_to_write_order(wo, &wo_end, &objects[i]); } - if (wo_end != nr_objects) - die("ordered %u objects, expected %"PRIu32, wo_end, nr_objects); + if (wo_end != to_pack.nr_objects) + die("ordered %u objects, expected %"PRIu32, wo_end, to_pack.nr_objects); return wo; } +static off_t write_reused_pack(struct sha1file *f) +{ + unsigned char buffer[8192]; + off_t to_write, total; + int fd; + + if (!is_pack_valid(reuse_packfile)) + die("packfile is invalid: %s", reuse_packfile->pack_name); + + fd = git_open_noatime(reuse_packfile->pack_name); + if (fd < 0) + die_errno("unable to open packfile for reuse: %s", + reuse_packfile->pack_name); + + if (lseek(fd, sizeof(struct pack_header), SEEK_SET) == -1) + die_errno("unable to seek in reused packfile"); + + if (reuse_packfile_offset < 0) + reuse_packfile_offset = reuse_packfile->pack_size - 20; + + total = to_write = reuse_packfile_offset - sizeof(struct pack_header); + + while (to_write) { + int read_pack = xread(fd, buffer, sizeof(buffer)); + + if (read_pack <= 0) + die_errno("unable to read from reused packfile"); + + if (read_pack > to_write) + read_pack = to_write; + + sha1write(f, buffer, read_pack); + to_write -= read_pack; + + /* + * We don't know the actual number of objects written, + * only how many bytes written, how many bytes total, and + * how many objects total. So we can fake it by pretending all + * objects we are writing are the same size. This gives us a + * smooth progress meter, and at the end it matches the true + * answer. + */ + written = reuse_packfile_objects * + (((double)(total - to_write)) / total); + display_progress(progress_state, written); + } + + close(fd); + written = reuse_packfile_objects; + display_progress(progress_state, written); + return reuse_packfile_offset - sizeof(struct pack_header); +} + static void write_pack_file(void) { uint32_t i = 0, j; @@ -723,8 +767,8 @@ static void write_pack_file(void) struct object_entry **write_order; if (progress > pack_to_stdout) - progress_state = start_progress("Writing objects", nr_result); - written_list = xmalloc(nr_objects * sizeof(*written_list)); + progress_state = start_progress(_("Writing objects"), nr_result); + written_list = xmalloc(to_pack.nr_objects * sizeof(*written_list)); write_order = compute_write_order(); do { @@ -737,10 +781,17 @@ static void write_pack_file(void) f = create_tmp_packfile(&pack_tmp_name); offset = write_pack_header(f, nr_remaining); - if (!offset) - die_errno("unable to write pack header"); + + if (reuse_packfile) { + off_t packfile_size; + assert(pack_to_stdout); + + packfile_size = write_reused_pack(f); + offset += packfile_size; + } + nr_written = 0; - for (; i < nr_objects; i++) { + for (; i < to_pack.nr_objects; i++) { struct object_entry *e = write_order[i]; if (write_one(f, e, &offset) == WRITE_ONE_BREAK) break; @@ -764,7 +815,7 @@ static void write_pack_file(void) if (!pack_to_stdout) { struct stat st; - char tmpname[PATH_MAX]; + struct strbuf tmpname = STRBUF_INIT; /* * Packs are runtime accessed in their mtime @@ -784,16 +835,35 @@ static void write_pack_file(void) utb.modtime = --last_mtime; if (utime(pack_tmp_name, &utb) < 0) warning("failed utime() on %s: %s", - tmpname, strerror(errno)); + pack_tmp_name, strerror(errno)); } - /* Enough space for "-<sha-1>.pack"? */ - if (sizeof(tmpname) <= strlen(base_name) + 50) - die("pack base name '%s' too long", base_name); - snprintf(tmpname, sizeof(tmpname), "%s-", base_name); - finish_tmp_packfile(tmpname, pack_tmp_name, + strbuf_addf(&tmpname, "%s-", base_name); + + if (write_bitmap_index) { + bitmap_writer_set_checksum(sha1); + bitmap_writer_build_type_index(written_list, nr_written); + } + + finish_tmp_packfile(&tmpname, pack_tmp_name, written_list, nr_written, &pack_idx_opts, sha1); + + if (write_bitmap_index) { + strbuf_addf(&tmpname, "%s.bitmap", sha1_to_hex(sha1)); + + stop_progress(&progress_state); + + bitmap_writer_show_progress(progress); + bitmap_writer_reuse_bitmaps(&to_pack); + bitmap_writer_select_commits(indexed_commits, indexed_commits_nr, -1); + bitmap_writer_build(&to_pack); + bitmap_writer_finish(written_list, nr_written, + tmpname.buf, write_bitmap_options); + write_bitmap_index = 0; + } + + strbuf_release(&tmpname); free(pack_tmp_name); puts(sha1_to_hex(sha1)); } @@ -803,7 +873,7 @@ static void write_pack_file(void) written_list[j]->offset = (off_t)-1; } nr_remaining -= nr_written; - } while (nr_remaining && i < nr_objects); + } while (nr_remaining && i < to_pack.nr_objects); free(written_list); free(write_order); @@ -813,73 +883,6 @@ static void write_pack_file(void) written, nr_result); } -static int locate_object_entry_hash(const unsigned char *sha1) -{ - int i; - unsigned int ui; - memcpy(&ui, sha1, sizeof(unsigned int)); - i = ui % object_ix_hashsz; - while (0 < object_ix[i]) { - if (!hashcmp(sha1, objects[object_ix[i] - 1].idx.sha1)) - return i; - if (++i == object_ix_hashsz) - i = 0; - } - return -1 - i; -} - -static struct object_entry *locate_object_entry(const unsigned char *sha1) -{ - int i; - - if (!object_ix_hashsz) - return NULL; - - i = locate_object_entry_hash(sha1); - if (0 <= i) - return &objects[object_ix[i]-1]; - return NULL; -} - -static void rehash_objects(void) -{ - uint32_t i; - struct object_entry *oe; - - object_ix_hashsz = nr_objects * 3; - if (object_ix_hashsz < 1024) - object_ix_hashsz = 1024; - object_ix = xrealloc(object_ix, sizeof(int) * object_ix_hashsz); - memset(object_ix, 0, sizeof(int) * object_ix_hashsz); - for (i = 0, oe = objects; i < nr_objects; i++, oe++) { - int ix = locate_object_entry_hash(oe->idx.sha1); - if (0 <= ix) - continue; - ix = -1 - ix; - object_ix[ix] = i + 1; - } -} - -static uint32_t name_hash(const char *name) -{ - uint32_t c, hash = 0; - - if (!name) - return 0; - - /* - * This effectively just creates a sortable number from the - * last sixteen non-whitespace characters. Last characters - * count "most", so things that end in ".c" sort together. - */ - while ((c = *name++) != 0) { - if (isspace(c)) - continue; - hash = (hash >> 2) + (c << 24); - } - return hash; -} - static void setup_delta_attr_check(struct git_attr_check *check) { static struct git_attr *attr_delta; @@ -902,42 +905,69 @@ static int no_try_delta(const char *path) return 0; } -static int add_object_entry(const unsigned char *sha1, enum object_type type, - const char *name, int exclude) +/* + * When adding an object, check whether we have already added it + * to our packing list. If so, we can skip. However, if we are + * being asked to excludei t, but the previous mention was to include + * it, make sure to adjust its flags and tweak our numbers accordingly. + * + * As an optimization, we pass out the index position where we would have + * found the item, since that saves us from having to look it up again a + * few lines later when we want to add the new entry. + */ +static int have_duplicate_entry(const unsigned char *sha1, + int exclude, + uint32_t *index_pos) { struct object_entry *entry; - struct packed_git *p, *found_pack = NULL; - off_t found_offset = 0; - int ix; - uint32_t hash = name_hash(name); - - ix = nr_objects ? locate_object_entry_hash(sha1) : -1; - if (ix >= 0) { - if (exclude) { - entry = objects + object_ix[ix] - 1; - if (!entry->preferred_base) - nr_result--; - entry->preferred_base = 1; - } + + entry = packlist_find(&to_pack, sha1, index_pos); + if (!entry) return 0; + + if (exclude) { + if (!entry->preferred_base) + nr_result--; + entry->preferred_base = 1; } + return 1; +} + +/* + * Check whether we want the object in the pack (e.g., we do not want + * objects found in non-local stores if the "--local" option was used). + * + * As a side effect of this check, we will find the packed version of this + * object, if any. We therefore pass out the pack information to avoid having + * to look it up again later. + */ +static int want_object_in_pack(const unsigned char *sha1, + int exclude, + struct packed_git **found_pack, + off_t *found_offset) +{ + struct packed_git *p; + if (!exclude && local && has_loose_object_nonlocal(sha1)) return 0; + *found_pack = NULL; + *found_offset = 0; + for (p = packed_git; p; p = p->next) { off_t offset = find_pack_entry_one(sha1, p); if (offset) { - if (!found_pack) { + if (!*found_pack) { if (!is_pack_valid(p)) { warning("packfile %s cannot be accessed", p->pack_name); continue; } - found_offset = offset; - found_pack = p; + *found_offset = offset; + *found_pack = p; } if (exclude) - break; + return 1; if (incremental) return 0; if (local && !p->pack_local) @@ -947,14 +977,21 @@ static int add_object_entry(const unsigned char *sha1, enum object_type type, } } - if (nr_objects >= nr_alloc) { - nr_alloc = (nr_alloc + 1024) * 3 / 2; - objects = xrealloc(objects, nr_alloc * sizeof(*entry)); - } + return 1; +} - entry = objects + nr_objects++; - memset(entry, 0, sizeof(*entry)); - hashcpy(entry->idx.sha1, sha1); +static void create_object_entry(const unsigned char *sha1, + enum object_type type, + uint32_t hash, + int exclude, + int no_try_delta, + uint32_t index_pos, + struct packed_git *found_pack, + off_t found_offset) +{ + struct object_entry *entry; + + entry = packlist_alloc(&to_pack, sha1, index_pos); entry->hash = hash; if (type) entry->type = type; @@ -967,16 +1004,53 @@ static int add_object_entry(const unsigned char *sha1, enum object_type type, entry->in_pack_offset = found_offset; } - if (object_ix_hashsz * 3 <= nr_objects * 4) - rehash_objects(); - else - object_ix[-1 - ix] = nr_objects; + entry->no_try_delta = no_try_delta; +} + +static const char no_closure_warning[] = N_( +"disabling bitmap writing, as some objects are not being packed" +); + +static int add_object_entry(const unsigned char *sha1, enum object_type type, + const char *name, int exclude) +{ + struct packed_git *found_pack; + off_t found_offset; + uint32_t index_pos; + + if (have_duplicate_entry(sha1, exclude, &index_pos)) + return 0; + + if (!want_object_in_pack(sha1, exclude, &found_pack, &found_offset)) { + /* The pack is missing an object, so it will not have closure */ + if (write_bitmap_index) { + warning(_(no_closure_warning)); + write_bitmap_index = 0; + } + return 0; + } + + create_object_entry(sha1, type, pack_name_hash(name), + exclude, name && no_try_delta(name), + index_pos, found_pack, found_offset); + + display_progress(progress_state, nr_result); + return 1; +} + +static int add_object_entry_from_bitmap(const unsigned char *sha1, + enum object_type type, + int flags, uint32_t name_hash, + struct packed_git *pack, off_t offset) +{ + uint32_t index_pos; - display_progress(progress_state, nr_objects); + if (have_duplicate_entry(sha1, 0, &index_pos)) + return 0; - if (name && no_try_delta(name)) - entry->no_try_delta = 1; + create_object_entry(sha1, type, name_hash, 0, 0, index_pos, pack, offset); + display_progress(progress_state, nr_result); return 1; } @@ -1001,7 +1075,7 @@ static int pbase_tree_cache_ix_incr(int ix) static struct pbase_tree { struct pbase_tree *next; /* This is a phony "cache" entry; we are not - * going to evict it nor find it through _get() + * going to evict it or find it through _get() * mechanism -- this is for the toplevel node that * would almost always change with any commit. */ @@ -1158,12 +1232,9 @@ static int check_pbase_path(unsigned hash) if (0 <= pos) return 1; pos = -pos - 1; - if (done_pbase_paths_alloc <= done_pbase_paths_num) { - done_pbase_paths_alloc = alloc_nr(done_pbase_paths_alloc); - done_pbase_paths = xrealloc(done_pbase_paths, - done_pbase_paths_alloc * - sizeof(unsigned)); - } + ALLOC_GROW(done_pbase_paths, + done_pbase_paths_num + 1, + done_pbase_paths_alloc); done_pbase_paths_num++; if (pos < done_pbase_paths_num) memmove(done_pbase_paths + pos + 1, @@ -1177,7 +1248,7 @@ static void add_preferred_base_object(const char *name) { struct pbase_tree *it; int cmplen; - unsigned hash = name_hash(name); + unsigned hash = pack_name_hash(name); if (!num_preferred_base || check_pbase_path(hash)) return; @@ -1329,7 +1400,7 @@ static void check_object(struct object_entry *entry) break; } - if (base_ref && (base_entry = locate_object_entry(base_ref))) { + if (base_ref && (base_entry = packlist_find(&to_pack, base_ref, NULL))) { /* * If base_ref was set above that means we wish to * reuse delta data, and we even found that base @@ -1403,12 +1474,12 @@ static void get_object_details(void) uint32_t i; struct object_entry **sorted_by_offset; - sorted_by_offset = xcalloc(nr_objects, sizeof(struct object_entry *)); - for (i = 0; i < nr_objects; i++) - sorted_by_offset[i] = objects + i; - qsort(sorted_by_offset, nr_objects, sizeof(*sorted_by_offset), pack_offset_sort); + sorted_by_offset = xcalloc(to_pack.nr_objects, sizeof(struct object_entry *)); + for (i = 0; i < to_pack.nr_objects; i++) + sorted_by_offset[i] = to_pack.objects + i; + qsort(sorted_by_offset, to_pack.nr_objects, sizeof(*sorted_by_offset), pack_offset_sort); - for (i = 0; i < nr_objects; i++) { + for (i = 0; i < to_pack.nr_objects; i++) { struct object_entry *entry = sorted_by_offset[i]; check_object(entry); if (big_file_threshold < entry->size) @@ -2032,9 +2103,9 @@ static int add_ref_tag(const char *path, const unsigned char *sha1, int flag, vo { unsigned char peeled[20]; - if (!prefixcmp(path, "refs/tags/") && /* is a tag? */ + if (starts_with(path, "refs/tags/") && /* is a tag? */ !peel_ref(path, peeled) && /* peelable? */ - locate_object_entry(peeled)) /* object packed? */ + packlist_find(&to_pack, peeled, NULL)) /* object packed? */ add_object_entry(sha1, OBJ_TAG, NULL, 0); return 0; } @@ -2057,14 +2128,14 @@ static void prepare_pack(int window, int depth) if (!pack_to_stdout) do_check_packed_object_crc = 1; - if (!nr_objects || !window || !depth) + if (!to_pack.nr_objects || !window || !depth) return; - delta_list = xmalloc(nr_objects * sizeof(*delta_list)); + delta_list = xmalloc(to_pack.nr_objects * sizeof(*delta_list)); nr_deltas = n = 0; - for (i = 0; i < nr_objects; i++) { - struct object_entry *entry = objects + i; + for (i = 0; i < to_pack.nr_objects; i++) { + struct object_entry *entry = to_pack.objects + i; if (entry->delta) /* This happens if we decided to reuse existing @@ -2099,7 +2170,7 @@ static void prepare_pack(int window, int depth) if (nr_deltas && n > 1) { unsigned nr_done = 0; if (progress) - progress_state = start_progress("Compressing objects", + progress_state = start_progress(_("Compressing objects"), nr_deltas); qsort(delta_list, n, sizeof(*delta_list), type_size_sort); ll_find_deltas(delta_list, n, window+1, depth, &nr_done); @@ -2142,6 +2213,16 @@ static int git_pack_config(const char *k, const char *v, void *cb) cache_max_small_delta_size = git_config_int(k, v); return 0; } + if (!strcmp(k, "pack.writebitmaphashcache")) { + if (git_config_bool(k, v)) + write_bitmap_options |= BITMAP_OPT_HASH_CACHE; + else + write_bitmap_options &= ~BITMAP_OPT_HASH_CACHE; + } + if (!strcmp(k, "pack.usebitmaps")) { + use_bitmap_index = git_config_bool(k, v); + return 0; + } if (!strcmp(k, "pack.threads")) { delta_search_threads = git_config_int(k, v); if (delta_search_threads < 0) @@ -2200,6 +2281,9 @@ static void show_commit(struct commit *commit, void *data) { add_object_entry(commit->object.sha1, 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, @@ -2342,7 +2426,7 @@ static void loosen_unused_packed_objects(struct rev_info *revs) for (i = 0; i < p->num_objects; i++) { sha1 = nth_packed_object_sha1(p, i); - if (!locate_object_entry(sha1) && + if (!packlist_find(&to_pack, sha1, NULL) && !has_sha1_pack_kept_or_nonlocal(sha1)) if (force_object_loose(sha1, p->mtime)) die("unable to force loose object"); @@ -2350,6 +2434,35 @@ static void loosen_unused_packed_objects(struct rev_info *revs) } } +/* + * This tracks any options which a reader of the pack might + * not understand, and which would therefore prevent blind reuse + * of what we have on disk. + */ +static int pack_options_allow_reuse(void) +{ + return allow_ofs_delta; +} + +static int get_object_list_from_bitmap(struct rev_info *revs) +{ + if (prepare_bitmap_walk(revs) < 0) + return -1; + + if (pack_options_allow_reuse() && + !reuse_partial_packfile_from_bitmap( + &reuse_packfile, + &reuse_packfile_objects, + &reuse_packfile_offset)) { + assert(reuse_packfile_objects); + nr_result += reuse_packfile_objects; + display_progress(progress_state, nr_result); + } + + traverse_bitmap_commit_list(&add_object_entry_from_bitmap); + return 0; +} + static void get_object_list(int ac, const char **av) { struct rev_info revs; @@ -2360,6 +2473,9 @@ static void get_object_list(int ac, const char **av) save_commit_buffer = 0; setup_revisions(ac, av, &revs, NULL); + /* make sure shallows are read */ + is_repository_shallow(); + while (fgets(line, sizeof(line), stdin) != NULL) { int len = strlen(line); if (len && line[len - 1] == '\n') @@ -2369,6 +2485,15 @@ static void get_object_list(int ac, const char **av) if (*line == '-') { if (!strcmp(line, "--not")) { flags ^= UNINTERESTING; + write_bitmap_index = 0; + continue; + } + if (starts_with(line, "--shallow ")) { + unsigned char sha1[20]; + if (get_sha1_hex(line + 10, sha1)) + die("not an SHA-1 '%s'", line + 10); + register_shallow(sha1); + use_bitmap_index = 0; continue; } die("not a rev '%s'", line); @@ -2377,6 +2502,9 @@ static void get_object_list(int ac, const char **av) die("bad revision '%s'", line); } + if (use_bitmap_index && !get_object_list_from_bitmap(&revs)) + return; + if (prepare_revision_walk(&revs)) die("revision walk setup failed"); mark_edges_uninteresting(&revs, show_edge); @@ -2506,10 +2634,14 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) N_("pack compression level")), OPT_SET_INT(0, "keep-true-parents", &grafts_replace_parents, N_("do not hide commits by grafts"), 0), + OPT_BOOL(0, "use-bitmap-index", &use_bitmap_index, + N_("use a bitmap index if available to speed up counting objects")), + OPT_BOOL(0, "write-bitmap-index", &write_bitmap_index, + N_("write a bitmap index together with the pack index")), OPT_END(), }; - read_replace_refs = 0; + check_replace_refs = 0; reset_pack_idx_option(&pack_idx_opts); git_config(git_pack_config, NULL); @@ -2572,13 +2704,19 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) if (keep_unreachable && unpack_unreachable) die("--keep-unreachable and --unpack-unreachable are incompatible."); + if (!use_internal_rev_list || !pack_to_stdout || is_repository_shallow()) + use_bitmap_index = 0; + + if (pack_to_stdout || !rev_list_all) + write_bitmap_index = 0; + if (progress && all_progress_implied) progress = 2; prepare_packed_git(); if (progress) - progress_state = start_progress("Counting objects", 0); + progress_state = start_progress(_("Counting objects"), 0); if (!use_internal_rev_list) read_object_list_from_stdin(); else { diff --git a/builtin/patch-id.c b/builtin/patch-id.c index 3cfe02d5a5..77db8739b5 100644 --- a/builtin/patch-id.c +++ b/builtin/patch-id.c @@ -1,17 +1,14 @@ #include "builtin.h" -static void flush_current_id(int patchlen, unsigned char *id, git_SHA_CTX *c) +static void flush_current_id(int patchlen, unsigned char *id, unsigned char *result) { - unsigned char result[20]; char name[50]; if (!patchlen) return; - git_SHA1_Final(result, c); memcpy(name, sha1_to_hex(id), 41); printf("%s %s\n", sha1_to_hex(result), name); - git_SHA1_Init(c); } static int remove_space(char *line) @@ -56,10 +53,31 @@ static int scan_hunk_header(const char *p, int *p_before, int *p_after) return 1; } -static int get_one_patchid(unsigned char *next_sha1, git_SHA_CTX *ctx, struct strbuf *line_buf) +static void flush_one_hunk(unsigned char *result, git_SHA_CTX *ctx) +{ + unsigned char hash[20]; + 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; + carry >>= 8; + } +} + +static int get_one_patchid(unsigned char *next_sha1, unsigned char *result, + struct strbuf *line_buf, int stable) { int patchlen = 0, found_next = 0; int before = -1, after = -1; + git_SHA_CTX ctx; + + git_SHA1_Init(&ctx); + hashclr(result); while (strbuf_getwholeline(line_buf, stdin, '\n') != EOF) { char *line = line_buf->buf; @@ -107,6 +125,8 @@ static int get_one_patchid(unsigned char *next_sha1, git_SHA_CTX *ctx, struct st break; /* Else we're parsing another header. */ + if (stable) + flush_one_hunk(result, &ctx); before = after = -1; } @@ -119,39 +139,63 @@ static int get_one_patchid(unsigned char *next_sha1, git_SHA_CTX *ctx, struct st /* Compute the sha without whitespace */ len = remove_space(line); patchlen += len; - git_SHA1_Update(ctx, line, len); + git_SHA1_Update(&ctx, line, len); } if (!found_next) hashclr(next_sha1); + flush_one_hunk(result, &ctx); + return patchlen; } -static void generate_id_list(void) +static void generate_id_list(int stable) { - unsigned char sha1[20], n[20]; - git_SHA_CTX ctx; + unsigned char sha1[20], n[20], result[20]; int patchlen; struct strbuf line_buf = STRBUF_INIT; - git_SHA1_Init(&ctx); hashclr(sha1); while (!feof(stdin)) { - patchlen = get_one_patchid(n, &ctx, &line_buf); - flush_current_id(patchlen, sha1, &ctx); + patchlen = get_one_patchid(n, result, &line_buf, stable); + flush_current_id(patchlen, sha1, result); hashcpy(sha1, n); } strbuf_release(&line_buf); } -static const char patch_id_usage[] = "git patch-id < patch"; +static const char patch_id_usage[] = "git patch-id [--stable | --unstable] < patch"; + +static int git_patch_id_config(const char *var, const char *value, void *cb) +{ + int *stable = cb; + + if (!strcmp(var, "patchid.stable")) { + *stable = git_config_bool(var, value); + return 0; + } + + return git_default_config(var, value, cb); +} int cmd_patch_id(int argc, const char **argv, const char *prefix) { - if (argc != 1) + int stable = -1; + + git_config(git_patch_id_config, &stable); + + /* If nothing is set, default to unstable. */ + if (stable < 0) + stable = 0; + + if (argc == 2 && !strcmp(argv[1], "--stable")) + stable = 1; + else if (argc == 2 && !strcmp(argv[1], "--unstable")) + stable = 0; + else if (argc != 1) usage(patch_id_usage); - generate_id_list(); + generate_id_list(stable); return 0; } diff --git a/builtin/prune-packed.c b/builtin/prune-packed.c index fa6ce42f44..d430731d70 100644 --- a/builtin/prune-packed.c +++ b/builtin/prune-packed.c @@ -10,60 +10,65 @@ static const char * const prune_packed_usage[] = { static struct progress *progress; -static void prune_dir(int i, DIR *dir, char *pathname, int len, int opts) +static void prune_dir(int i, DIR *dir, struct strbuf *pathname, int opts) { struct dirent *de; char hex[40]; + int top_len = pathname->len; sprintf(hex, "%02x", i); while ((de = readdir(dir)) != NULL) { unsigned char sha1[20]; if (strlen(de->d_name) != 38) continue; - memcpy(hex+2, de->d_name, 38); + memcpy(hex + 2, de->d_name, 38); if (get_sha1_hex(hex, sha1)) continue; if (!has_sha1_pack(sha1)) continue; - memcpy(pathname + len, de->d_name, 38); + + strbuf_add(pathname, de->d_name, 38); if (opts & PRUNE_PACKED_DRY_RUN) - printf("rm -f %s\n", pathname); + printf("rm -f %s\n", pathname->buf); else - unlink_or_warn(pathname); + unlink_or_warn(pathname->buf); display_progress(progress, i + 1); + strbuf_setlen(pathname, top_len); } } void prune_packed_objects(int opts) { int i; - static char pathname[PATH_MAX]; const char *dir = get_object_directory(); - int len = strlen(dir); + struct strbuf pathname = STRBUF_INIT; + int top_len; + strbuf_addstr(&pathname, dir); if (opts & PRUNE_PACKED_VERBOSE) - progress = start_progress_delay("Removing duplicate objects", + progress = start_progress_delay(_("Removing duplicate objects"), 256, 95, 2); - if (len > PATH_MAX - 42) - die("impossible object directory"); - memcpy(pathname, dir, len); - if (len && pathname[len-1] != '/') - pathname[len++] = '/'; + if (pathname.len && pathname.buf[pathname.len - 1] != '/') + strbuf_addch(&pathname, '/'); + + top_len = pathname.len; for (i = 0; i < 256; i++) { DIR *d; display_progress(progress, i + 1); - sprintf(pathname + len, "%02x/", i); - d = opendir(pathname); + strbuf_setlen(&pathname, top_len); + strbuf_addf(&pathname, "%02x/", i); + d = opendir(pathname.buf); if (!d) continue; - prune_dir(i, d, pathname, len + 3, opts); + prune_dir(i, d, &pathname, opts); closedir(d); - pathname[len + 2] = '\0'; - rmdir(pathname); + strbuf_setlen(&pathname, top_len + 2); + rmdir(pathname.buf); } stop_progress(&progress); + strbuf_release(&pathname); } int cmd_prune_packed(int argc, const char **argv, const char *prefix) diff --git a/builtin/prune.c b/builtin/prune.c index 6366917c6d..144a3bdb33 100644 --- a/builtin/prune.c +++ b/builtin/prune.c @@ -17,9 +17,8 @@ static int verbose; static unsigned long expire; static int show_progress = -1; -static int prune_tmp_object(const char *path, const char *filename) +static int prune_tmp_file(const char *fullpath) { - const char *fullpath = mkpath("%s/%s", path, filename); struct stat st; if (lstat(fullpath, &st)) return error("Could not stat '%s'", fullpath); @@ -32,9 +31,8 @@ static int prune_tmp_object(const char *path, const char *filename) return 0; } -static int prune_object(char *path, const char *filename, const unsigned char *sha1) +static int prune_object(const char *fullpath, const unsigned char *sha1) { - const char *fullpath = mkpath("%s/%s", path, filename); struct stat st; if (lstat(fullpath, &st)) return error("Could not stat '%s'", fullpath); @@ -50,9 +48,10 @@ static int prune_object(char *path, const char *filename, const unsigned char *s return 0; } -static int prune_dir(int i, char *path) +static int prune_dir(int i, struct strbuf *path) { - DIR *dir = opendir(path); + size_t baselen = path->len; + DIR *dir = opendir(path->buf); struct dirent *de; if (!dir) @@ -77,28 +76,39 @@ static int prune_dir(int i, char *path) if (lookup_object(sha1)) continue; - prune_object(path, de->d_name, sha1); + strbuf_addf(path, "/%s", de->d_name); + prune_object(path->buf, sha1); + strbuf_setlen(path, baselen); continue; } - if (!prefixcmp(de->d_name, "tmp_obj_")) { - prune_tmp_object(path, de->d_name); + if (starts_with(de->d_name, "tmp_obj_")) { + strbuf_addf(path, "/%s", de->d_name); + prune_tmp_file(path->buf); + strbuf_setlen(path, baselen); continue; } - fprintf(stderr, "bad sha1 file: %s/%s\n", path, de->d_name); + fprintf(stderr, "bad sha1 file: %s/%s\n", path->buf, de->d_name); } closedir(dir); if (!show_only) - rmdir(path); + rmdir(path->buf); return 0; } static void prune_object_dir(const char *path) { + struct strbuf buf = STRBUF_INIT; + size_t baselen; int i; + + strbuf_addstr(&buf, path); + strbuf_addch(&buf, '/'); + baselen = buf.len; + for (i = 0; i < 256; i++) { - static char dir[4096]; - sprintf(dir, "%s/%02x", path, i); - prune_dir(i, dir); + strbuf_addf(&buf, "%02x", i); + prune_dir(i, &buf); + strbuf_setlen(&buf, baselen); } } @@ -119,8 +129,8 @@ static void remove_temporary_files(const char *path) return; } while ((de = readdir(dir)) != NULL) - if (!prefixcmp(de->d_name, "tmp_")) - prune_tmp_object(path, de->d_name); + if (starts_with(de->d_name, "tmp_")) + prune_tmp_file(mkpath("%s/%s", path, de->d_name)); closedir(dir); } @@ -140,7 +150,7 @@ int cmd_prune(int argc, const char **argv, const char *prefix) expire = ULONG_MAX; save_commit_buffer = 0; - read_replace_refs = 0; + check_replace_refs = 0; init_revisions(&revs, prefix); argc = parse_options(argc, argv, prefix, options, prune_usage, 0); @@ -159,7 +169,7 @@ int cmd_prune(int argc, const char **argv, const char *prefix) if (show_progress == -1) show_progress = isatty(2); if (show_progress) - progress = start_progress_delay("Checking connectivity", 0, 0, 2); + progress = start_progress_delay(_("Checking connectivity"), 0, 0, 2); mark_reachable_objects(&revs, 1, progress); stop_progress(&progress); @@ -170,5 +180,9 @@ int cmd_prune(int argc, const char **argv, const char *prefix) s = mkpathdup("%s/pack", get_object_directory()); remove_temporary_files(s); free(s); + + if (is_repository_shallow()) + prune_shallow(show_only); + return 0; } diff --git a/builtin/push.c b/builtin/push.c index 7b1b66c36a..ae56f73a66 100644 --- a/builtin/push.c +++ b/builtin/push.c @@ -26,7 +26,6 @@ static struct push_cas_option cas; static const char **refspec; static int refspec_nr; static int refspec_alloc; -static int default_matching_used; static void add_refspec(const char *ref) { @@ -35,35 +34,75 @@ static void add_refspec(const char *ref) refspec[refspec_nr-1] = ref; } -static void set_refspecs(const char **refs, int nr) +static const char *map_refspec(const char *ref, + struct remote *remote, struct ref *local_refs) { + struct ref *matched = NULL; + + /* Does "ref" uniquely name our ref? */ + if (count_refspec_match(ref, local_refs, &matched) != 1) + return ref; + + if (remote->push) { + struct refspec query; + memset(&query, 0, sizeof(struct refspec)); + query.src = matched->name; + if (!query_refspecs(remote->push, remote->push_refspec_nr, &query) && + query.dst) { + struct strbuf buf = STRBUF_INIT; + strbuf_addf(&buf, "%s%s:%s", + query.force ? "+" : "", + query.src, query.dst); + return strbuf_detach(&buf, NULL); + } + } + + if (push_default == PUSH_DEFAULT_UPSTREAM && + starts_with(matched->name, "refs/heads/")) { + struct branch *branch = branch_get(matched->name + 11); + if (branch->merge_nr == 1 && branch->merge[0]->src) { + struct strbuf buf = STRBUF_INIT; + strbuf_addf(&buf, "%s:%s", + ref, branch->merge[0]->src); + return strbuf_detach(&buf, NULL); + } + } + + return ref; +} + +static void set_refspecs(const char **refs, int nr, const char *repo) +{ + struct remote *remote = NULL; + struct ref *local_refs = NULL; int i; + for (i = 0; i < nr; i++) { const char *ref = refs[i]; if (!strcmp("tag", ref)) { - char *tag; - int len; + struct strbuf tagref = STRBUF_INIT; if (nr <= ++i) die(_("tag shorthand without <tag>")); - len = strlen(refs[i]) + 11; - if (deleterefs) { - tag = xmalloc(len+1); - strcpy(tag, ":refs/tags/"); - } else { - tag = xmalloc(len); - strcpy(tag, "refs/tags/"); + ref = refs[i]; + if (deleterefs) + strbuf_addf(&tagref, ":refs/tags/%s", ref); + else + strbuf_addf(&tagref, "refs/tags/%s", ref); + ref = strbuf_detach(&tagref, NULL); + } else if (deleterefs) { + struct strbuf delref = STRBUF_INIT; + if (strchr(ref, ':')) + die(_("--delete only accepts plain target ref names")); + strbuf_addf(&delref, ":%s", ref); + ref = strbuf_detach(&delref, NULL); + } else if (!strchr(ref, ':')) { + if (!remote) { + /* lazily grab remote and local_refs */ + remote = remote_get(repo); + local_refs = get_local_heads(); } - strcat(tag, refs[i]); - ref = tag; - } else if (deleterefs && !strchr(ref, ':')) { - char *delref; - int len = strlen(ref)+1; - delref = xmalloc(len+1); - strcpy(delref, ":"); - strcat(delref, ref); - ref = delref; - } else if (deleterefs) - die(_("--delete only accepts plain target ref names")); + ref = map_refspec(ref, remote, local_refs); + } add_refspec(ref); } } @@ -88,11 +127,10 @@ static NORETURN int die_push_simple(struct branch *branch, struct remote *remote * them the big ugly fully qualified ref. */ const char *advice_maybe = ""; - const char *short_upstream = - skip_prefix(branch->merge[0]->src, "refs/heads/"); + const char *short_upstream = branch->merge[0]->src; + + skip_prefix(short_upstream, "refs/heads/", &short_upstream); - if (!short_upstream) - short_upstream = branch->merge[0]->src; /* * Don't show advice for people who explicitly set * push.default. @@ -164,9 +202,9 @@ static void setup_push_current(struct remote *remote, struct branch *branch) } static char warn_unspecified_push_default_msg[] = -N_("push.default is unset; its implicit value is changing in\n" +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 current behavior after the default changes, use:\n" + "and maintain the traditional behavior, use:\n" "\n" " git config --global push.default matching\n" "\n" @@ -174,6 +212,13 @@ N_("push.default is unset; its implicit value is changing in\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)"); @@ -200,14 +245,14 @@ static void setup_default_push_refspecs(struct remote *remote) switch (push_default) { default: - case PUSH_DEFAULT_UNSPECIFIED: - default_matching_used = 1; - warn_unspecified_push_default_configuration(); - /* fallthru */ case PUSH_DEFAULT_MATCHING: add_refspec(":"); break; + case PUSH_DEFAULT_UNSPECIFIED: + warn_unspecified_push_default_configuration(); + /* fallthru */ + case PUSH_DEFAULT_SIMPLE: if (triangular) setup_push_current(remote, branch); @@ -236,12 +281,6 @@ static const char message_advice_pull_before_push[] = "'git pull ...') before pushing again.\n" "See the 'Note about fast-forwards' in 'git push --help' for details."); -static const char message_advice_use_upstream[] = - N_("Updates were rejected because a pushed branch tip is behind its remote\n" - "counterpart. If you did not intend to push that branch, you may want to\n" - "specify branches to push or set the 'push.default' configuration variable\n" - "to 'simple', 'current' or 'upstream' to push only the current branch."); - static const char message_advice_checkout_pull_push[] = N_("Updates were rejected because a pushed branch tip is behind its remote\n" "counterpart. Check out this branch and integrate the remote changes\n" @@ -270,13 +309,6 @@ static void advise_pull_before_push(void) advise(_(message_advice_pull_before_push)); } -static void advise_use_upstream(void) -{ - if (!advice_push_non_ff_default || !advice_push_update_rejected) - return; - advise(_(message_advice_use_upstream)); -} - static void advise_checkout_pull_push(void) { if (!advice_push_non_ff_matching || !advice_push_update_rejected) @@ -338,10 +370,7 @@ static int push_with_options(struct transport *transport, int flags) if (reject_reasons & REJECT_NON_FF_HEAD) { advise_pull_before_push(); } else if (reject_reasons & REJECT_NON_FF_OTHER) { - if (default_matching_used) - advise_use_upstream(); - else - advise_checkout_pull_push(); + advise_checkout_pull_push(); } else if (reject_reasons & REJECT_ALREADY_EXISTS) { advise_ref_already_exists(); } else if (reject_reasons & REJECT_FETCH_FIRST) { @@ -477,6 +506,7 @@ 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), OPT_END() }; @@ -494,7 +524,7 @@ int cmd_push(int argc, const char **argv, const char *prefix) if (argc > 0) { repo = argv[0]; - set_refspecs(argv + 1, argc - 1); + set_refspecs(argv + 1, argc - 1, repo); } rc = do_push(repo, flags); diff --git a/builtin/read-tree.c b/builtin/read-tree.c index 0d7ef847a7..43b47f72f1 100644 --- a/builtin/read-tree.c +++ b/builtin/read-tree.c @@ -5,6 +5,7 @@ */ #include "cache.h" +#include "lockfile.h" #include "object.h" #include "tree.h" #include "tree-walk.h" @@ -99,7 +100,7 @@ static struct lock_file lock_file; int cmd_read_tree(int argc, const char **argv, const char *unused_prefix) { - int i, newfd, stage = 0; + int i, stage = 0; unsigned char sha1[20]; struct tree_desc t[MAX_UNPACK_TREES]; struct unpack_trees_options opts; @@ -149,12 +150,21 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix) argc = parse_options(argc, argv, unused_prefix, read_tree_options, read_tree_usage, 0); - newfd = hold_locked_index(&lock_file, 1); + hold_locked_index(&lock_file, 1); prefix_set = opts.prefix ? 1 : 0; if (1 < opts.merge + opts.reset + prefix_set) die("Which one? -m, --reset, or --prefix?"); + /* + * NEEDSWORK + * + * The old index should be read anyway even if we're going to + * destroy all index entries because we still need to preserve + * certain information such as index version or split-index + * mode. + */ + if (opts.reset || opts.merge || opts.prefix) { if (read_cache_unmerged() && (opts.prefix || opts.merge)) die("You need to resolve your current index first"); @@ -231,10 +241,9 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix) * what came from the tree. */ if (nr_trees == 1 && !opts.prefix) - prime_cache_tree(&active_cache_tree, trees[0]); + prime_cache_tree(&the_index, trees[0]); - if (write_cache(newfd, active_cache, active_nr) || - commit_locked_index(&lock_file)) + if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK)) die("unable to write new index file"); return 0; } diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c index 67ce1ef105..f2f6c67359 100644 --- a/builtin/receive-pack.c +++ b/builtin/receive-pack.c @@ -1,4 +1,5 @@ #include "builtin.h" +#include "lockfile.h" #include "pack.h" #include "refs.h" #include "pkt-line.h" @@ -13,7 +14,11 @@ #include "string-list.h" #include "sha1-array.h" #include "connected.h" +#include "argv-array.h" #include "version.h" +#include "tag.h" +#include "gpg-interface.h" +#include "sigchain.h" static const char receive_pack_usage[] = "git receive-pack <git-dir>"; @@ -40,9 +45,27 @@ static int prefer_ofs_delta = 1; static int auto_update_server_info; static int auto_gc = 1; static int fix_thin = 1; +static int stateless_rpc; +static const char *service_dir; static const char *head_name; static void *head_name_to_free; static int sent_capabilities; +static int shallow_update; +static const char *alt_shallow_file; +static struct strbuf push_cert = STRBUF_INIT; +static unsigned char push_cert_sha1[20]; +static struct signature_check sigcheck; +static const char *push_cert_nonce; +static const char *cert_nonce_seed; + +static const char *NONCE_UNSOLICITED = "UNSOLICITED"; +static const char *NONCE_BAD = "BAD"; +static const char *NONCE_MISSING = "MISSING"; +static const char *NONCE_OK = "OK"; +static const char *NONCE_SLOP = "SLOP"; +static const char *nonce_status; +static long nonce_stamp_slop; +static unsigned long nonce_stamp_slop_limit; static enum deny_action parse_deny_action(const char *var, const char *value) { @@ -121,6 +144,19 @@ static int receive_pack_config(const char *var, const char *value, void *cb) return 0; } + if (strcmp(var, "receive.shallowupdate") == 0) { + shallow_update = git_config_bool(var, value); + return 0; + } + + if (strcmp(var, "receive.certnonceseed") == 0) + return git_config_string(&cert_nonce_seed, var, value); + + if (strcmp(var, "receive.certnonceslop") == 0) { + nonce_stamp_slop_limit = git_config_ulong(var, value); + return 0; + } + return git_default_config(var, value, cb); } @@ -129,15 +165,23 @@ static void show_ref(const char *path, const unsigned char *sha1) if (ref_is_hidden(path)) return; - if (sent_capabilities) + if (sent_capabilities) { packet_write(1, "%s %s\n", sha1_to_hex(sha1), path); - else - packet_write(1, "%s %s%c%s%s agent=%s\n", - sha1_to_hex(sha1), path, 0, - " report-status delete-refs side-band-64k quiet", - prefer_ofs_delta ? " ofs-delta" : "", - git_user_agent_sanitized()); - sent_capabilities = 1; + } else { + struct strbuf cap = STRBUF_INIT; + + strbuf_addstr(&cap, + "report-status delete-refs side-band-64k quiet"); + if (prefer_ofs_delta) + strbuf_addstr(&cap, " ofs-delta"); + if (push_cert_nonce) + strbuf_addf(&cap, " push-cert=%s", push_cert_nonce); + strbuf_addf(&cap, " agent=%s", git_user_agent_sanitized()); + packet_write(1, "%s %s%c%s\n", + sha1_to_hex(sha1), path, 0, cap.buf); + strbuf_release(&cap); + sent_capabilities = 1; + } } static int show_ref_cb(const char *path, const unsigned char *sha1, int flag, void *unused) @@ -178,6 +222,8 @@ static void write_head_info(void) if (!sent_capabilities) show_ref("capabilities^{}", null_sha1); + advertise_shallow_grafts(1); + /* EOF */ packet_flush(1); } @@ -187,6 +233,7 @@ struct command { const char *error_string; unsigned int skip_update:1, did_not_exist:1; + int index; unsigned char old_sha1[20]; unsigned char new_sha1[20]; char ref_name[FLEX_ARRAY]; /* more */ @@ -241,10 +288,226 @@ static int copy_to_sideband(int in, int out, void *arg) return 0; } +#define HMAC_BLOCK_SIZE 64 + +static void hmac_sha1(unsigned char *out, + const char *key_in, size_t key_len, + const char *text, size_t text_len) +{ + unsigned char key[HMAC_BLOCK_SIZE]; + unsigned char k_ipad[HMAC_BLOCK_SIZE]; + unsigned char k_opad[HMAC_BLOCK_SIZE]; + int i; + git_SHA_CTX ctx; + + /* RFC 2104 2. (1) */ + memset(key, '\0', HMAC_BLOCK_SIZE); + if (HMAC_BLOCK_SIZE < key_len) { + git_SHA1_Init(&ctx); + git_SHA1_Update(&ctx, key_in, key_len); + git_SHA1_Final(key, &ctx); + } else { + memcpy(key, key_in, key_len); + } + + /* RFC 2104 2. (2) & (5) */ + for (i = 0; i < sizeof(key); i++) { + k_ipad[i] = key[i] ^ 0x36; + k_opad[i] = key[i] ^ 0x5c; + } + + /* RFC 2104 2. (3) & (4) */ + git_SHA1_Init(&ctx); + git_SHA1_Update(&ctx, k_ipad, sizeof(k_ipad)); + git_SHA1_Update(&ctx, text, text_len); + git_SHA1_Final(out, &ctx); + + /* RFC 2104 2. (6) & (7) */ + git_SHA1_Init(&ctx); + git_SHA1_Update(&ctx, k_opad, sizeof(k_opad)); + git_SHA1_Update(&ctx, out, 20); + git_SHA1_Final(out, &ctx); +} + +static char *prepare_push_cert_nonce(const char *path, unsigned long stamp) +{ + struct strbuf buf = STRBUF_INIT; + unsigned char sha1[20]; + + strbuf_addf(&buf, "%s:%lu", path, stamp); + hmac_sha1(sha1, buf.buf, buf.len, cert_nonce_seed, strlen(cert_nonce_seed));; + strbuf_release(&buf); + + /* RFC 2104 5. HMAC-SHA1-80 */ + strbuf_addf(&buf, "%lu-%.*s", stamp, 20, sha1_to_hex(sha1)); + return strbuf_detach(&buf, NULL); +} + +/* + * NEEDSWORK: reuse find_commit_header() from jk/commit-author-parsing + * after dropping "_commit" from its name and possibly moving it out + * of commit.c + */ +static char *find_header(const char *msg, size_t len, const char *key) +{ + int key_len = strlen(key); + const char *line = msg; + + while (line && line < msg + len) { + const char *eol = strchrnul(line, '\n'); + + if ((msg + len <= eol) || line == eol) + return NULL; + if (line + key_len < eol && + !memcmp(line, key, key_len) && line[key_len] == ' ') { + int offset = key_len + 1; + return xmemdupz(line + offset, (eol - line) - offset); + } + line = *eol ? eol + 1 : NULL; + } + return NULL; +} + +static const char *check_nonce(const char *buf, size_t len) +{ + char *nonce = find_header(buf, len, "nonce"); + unsigned long stamp, ostamp; + char *bohmac, *expect = NULL; + const char *retval = NONCE_BAD; + + if (!nonce) { + retval = NONCE_MISSING; + goto leave; + } else if (!push_cert_nonce) { + retval = NONCE_UNSOLICITED; + goto leave; + } else if (!strcmp(push_cert_nonce, nonce)) { + retval = NONCE_OK; + goto leave; + } + + if (!stateless_rpc) { + /* returned nonce MUST match what we gave out earlier */ + retval = NONCE_BAD; + goto leave; + } + + /* + * In stateless mode, we may be receiving a nonce issued by + * another instance of the server that serving the same + * repository, and the timestamps may not match, but the + * nonce-seed and dir should match, so we can recompute and + * report the time slop. + * + * In addition, when a nonce issued by another instance has + * timestamp within receive.certnonceslop seconds, we pretend + * as if we issued that nonce when reporting to the hook. + */ + + /* nonce is concat(<seconds-since-epoch>, "-", <hmac>) */ + if (*nonce <= '0' || '9' < *nonce) { + retval = NONCE_BAD; + goto leave; + } + stamp = strtoul(nonce, &bohmac, 10); + if (bohmac == nonce || bohmac[0] != '-') { + retval = NONCE_BAD; + goto leave; + } + + expect = prepare_push_cert_nonce(service_dir, stamp); + if (strcmp(expect, nonce)) { + /* Not what we would have signed earlier */ + retval = NONCE_BAD; + goto leave; + } + + /* + * By how many seconds is this nonce stale? Negative value + * would mean it was issued by another server with its clock + * skewed in the future. + */ + ostamp = strtoul(push_cert_nonce, NULL, 10); + nonce_stamp_slop = (long)ostamp - (long)stamp; + + if (nonce_stamp_slop_limit && + abs(nonce_stamp_slop) <= nonce_stamp_slop_limit) { + /* + * Pretend as if the received nonce (which passes the + * HMAC check, so it is not a forged by third-party) + * is what we issued. + */ + free((void *)push_cert_nonce); + push_cert_nonce = xstrdup(nonce); + retval = NONCE_OK; + } else { + retval = NONCE_SLOP; + } + +leave: + free(nonce); + free(expect); + return retval; +} + +static void prepare_push_cert_sha1(struct child_process *proc) +{ + static int already_done; + struct argv_array env = ARGV_ARRAY_INIT; + + if (!push_cert.len) + return; + + if (!already_done) { + struct strbuf gpg_output = STRBUF_INIT; + struct strbuf gpg_status = STRBUF_INIT; + int bogs /* beginning_of_gpg_sig */; + + already_done = 1; + if (write_sha1_file(push_cert.buf, push_cert.len, "blob", push_cert_sha1)) + hashclr(push_cert_sha1); + + memset(&sigcheck, '\0', sizeof(sigcheck)); + sigcheck.result = 'N'; + + bogs = parse_signature(push_cert.buf, push_cert.len); + if (verify_signed_buffer(push_cert.buf, bogs, + push_cert.buf + bogs, push_cert.len - bogs, + &gpg_output, &gpg_status) < 0) { + ; /* error running gpg */ + } else { + sigcheck.payload = push_cert.buf; + sigcheck.gpg_output = gpg_output.buf; + sigcheck.gpg_status = gpg_status.buf; + parse_gpg_output(&sigcheck); + } + + strbuf_release(&gpg_output); + strbuf_release(&gpg_status); + nonce_status = check_nonce(push_cert.buf, bogs); + } + if (!is_null_sha1(push_cert_sha1)) { + argv_array_pushf(&env, "GIT_PUSH_CERT=%s", sha1_to_hex(push_cert_sha1)); + argv_array_pushf(&env, "GIT_PUSH_CERT_SIGNER=%s", + sigcheck.signer ? sigcheck.signer : ""); + argv_array_pushf(&env, "GIT_PUSH_CERT_KEY=%s", + sigcheck.key ? sigcheck.key : ""); + argv_array_pushf(&env, "GIT_PUSH_CERT_STATUS=%c", sigcheck.result); + if (push_cert_nonce) { + argv_array_pushf(&env, "GIT_PUSH_CERT_NONCE=%s", push_cert_nonce); + argv_array_pushf(&env, "GIT_PUSH_CERT_NONCE_STATUS=%s", nonce_status); + if (nonce_status == NONCE_SLOP) + argv_array_pushf(&env, "GIT_PUSH_CERT_NONCE_SLOP=%ld", + nonce_stamp_slop); + } + proc->env = env.argv; + } +} + typedef int (*feed_fn)(void *, const char **, size_t *); static int run_and_feed_hook(const char *hook_name, feed_fn feed, void *feed_state) { - struct child_process proc; + struct child_process proc = CHILD_PROCESS_INIT; struct async muxer; const char *argv[2]; int code; @@ -255,11 +518,12 @@ static int run_and_feed_hook(const char *hook_name, feed_fn feed, void *feed_sta argv[1] = NULL; - memset(&proc, 0, sizeof(proc)); proc.argv = argv; proc.in = -1; proc.stdout_to_stderr = 1; + prepare_push_cert_sha1(&proc); + if (use_sideband) { memset(&muxer, 0, sizeof(muxer)); muxer.proc = copy_to_sideband; @@ -277,6 +541,8 @@ static int run_and_feed_hook(const char *hook_name, feed_fn feed, void *feed_sta return code; } + sigchain_push(SIGPIPE, SIG_IGN); + while (1) { const char *buf; size_t n; @@ -288,6 +554,9 @@ static int run_and_feed_hook(const char *hook_name, feed_fn feed, void *feed_sta close(proc.in); if (use_sideband) finish_async(&muxer); + + sigchain_pop(SIGPIPE); + return finish_command(&proc); } @@ -339,7 +608,7 @@ static int run_receive_hook(struct command *commands, const char *hook_name, static int run_update_hook(struct command *cmd) { const char *argv[5]; - struct child_process proc; + struct child_process proc = CHILD_PROCESS_INIT; int code; argv[0] = find_hook("update"); @@ -351,7 +620,6 @@ static int run_update_hook(struct command *cmd) argv[3] = sha1_to_hex(cmd->new_sha1); argv[4] = NULL; - memset(&proc, 0, sizeof(proc)); proc.no_stdin = 1; proc.stdout_to_stderr = 1; proc.err = use_sideband ? -1 : 0; @@ -418,17 +686,55 @@ static void refuse_unconfigured_deny_delete_current(void) rp_error("%s", refuse_unconfigured_deny_delete_current_msg[i]); } -static const char *update(struct command *cmd) +static int command_singleton_iterator(void *cb_data, unsigned char sha1[20]); +static int update_shallow_ref(struct command *cmd, struct shallow_info *si) +{ + static struct lock_file shallow_lock; + struct sha1_array extra = SHA1_ARRAY_INIT; + const char *alt_file; + uint32_t mask = 1 << (cmd->index % 32); + int i; + + trace_printf_key(&trace_shallow, + "shallow: update_shallow_ref %s\n", cmd->ref_name); + for (i = 0; i < si->shallow->nr; i++) + if (si->used_shallow[i] && + (si->used_shallow[i][cmd->index / 32] & mask) && + !delayed_reachability_test(si, i)) + sha1_array_append(&extra, si->shallow->sha1[i]); + + setup_alternate_shallow(&shallow_lock, &alt_file, &extra); + if (check_shallow_connected(command_singleton_iterator, + 0, cmd, alt_file)) { + rollback_lock_file(&shallow_lock); + sha1_array_clear(&extra); + return -1; + } + + commit_lock_file(&shallow_lock); + + /* + * Make sure setup_alternate_shallow() for the next ref does + * not lose these new roots.. + */ + for (i = 0; i < extra.nr; i++) + register_shallow(extra.sha1[i]); + + si->shallow_ref[cmd->index] = 0; + sha1_array_clear(&extra); + return 0; +} + +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; unsigned char *old_sha1 = cmd->old_sha1; unsigned char *new_sha1 = cmd->new_sha1; - struct ref_lock *lock; /* only refs/... are allowed */ - if (prefixcmp(name, "refs/") || check_refname_format(name + 5, 0)) { + if (!starts_with(name, "refs/") || check_refname_format(name + 5, 0)) { rp_error("refusing to create funny ref '%s' remotely", name); return "funny refname"; } @@ -459,7 +765,7 @@ static const char *update(struct command *cmd) } if (!is_null_sha1(old_sha1) && is_null_sha1(new_sha1)) { - if (deny_deletes && !prefixcmp(name, "refs/heads/")) { + if (deny_deletes && starts_with(name, "refs/heads/")) { rp_error("denying ref deletion for %s", name); return "deletion prohibited"; } @@ -483,7 +789,7 @@ static const char *update(struct command *cmd) if (deny_non_fast_forwards && !is_null_sha1(new_sha1) && !is_null_sha1(old_sha1) && - !prefixcmp(name, "refs/heads/")) { + starts_with(name, "refs/heads/")) { struct object *old_object, *new_object; struct commit *old_commit, *new_commit; @@ -526,15 +832,27 @@ static const char *update(struct command *cmd) return NULL; /* good */ } else { - lock = lock_any_ref_for_update(namespaced_name, old_sha1, - 0, NULL); - if (!lock) { - rp_error("failed to lock %s", name); - return "failed to lock"; - } - if (write_ref_sha1(lock, new_sha1, "push")) { - return "failed to write"; /* error() already called */ + struct strbuf err = STRBUF_INIT; + struct ref_transaction *transaction; + + if (shallow_update && si->shallow_ref[cmd->index] && + update_shallow_ref(cmd, si)) + return "shallow error"; + + transaction = ref_transaction_begin(&err); + if (!transaction || + ref_transaction_update(transaction, namespaced_name, + new_sha1, old_sha1, 0, 1, &err) || + ref_transaction_commit(transaction, "push", &err)) { + ref_transaction_free(transaction); + + rp_error("%s", err.buf); + strbuf_release(&err); + return "failed to update ref"; } + + ref_transaction_free(transaction); + strbuf_release(&err); return NULL; /* good */ } } @@ -544,7 +862,7 @@ static void run_update_post_hook(struct command *commands) struct command *cmd; int argc; const char **argv; - struct child_process proc; + struct child_process proc = CHILD_PROCESS_INIT; char *hook; hook = find_hook("post-update"); @@ -560,17 +878,13 @@ static void run_update_post_hook(struct command *commands) argv[0] = hook; for (argc = 1, cmd = commands; cmd; cmd = cmd->next) { - char *p; if (cmd->error_string || cmd->did_not_exist) continue; - p = xmalloc(strlen(cmd->ref_name) + 1); - strcpy(p, cmd->ref_name); - argv[argc] = p; + argv[argc] = xstrdup(cmd->ref_name); argc++; } argv[argc] = NULL; - memset(&proc, 0, sizeof(proc)); proc.no_stdin = 1; proc.stdout_to_stderr = 1; proc.err = use_sideband ? -1 : 0; @@ -666,12 +980,16 @@ static int command_singleton_iterator(void *cb_data, unsigned char sha1[20]) return 0; } -static void set_connectivity_errors(struct command *commands) +static void set_connectivity_errors(struct command *commands, + struct shallow_info *si) { struct command *cmd; for (cmd = commands; cmd; cmd = cmd->next) { struct command *singleton = cmd; + if (shallow_update && si->shallow_ref[cmd->index]) + /* to be checked in update_shallow_ref() */ + continue; if (!check_everything_connected(command_singleton_iterator, 0, &singleton)) continue; @@ -679,18 +997,26 @@ static void set_connectivity_errors(struct command *commands) } } +struct iterate_data { + struct command *cmds; + struct shallow_info *si; +}; + static int iterate_receive_command_list(void *cb_data, unsigned char sha1[20]) { - struct command **cmd_list = cb_data; + struct iterate_data *data = cb_data; + struct command **cmd_list = &data->cmds; struct command *cmd = *cmd_list; - while (cmd) { - if (!is_null_sha1(cmd->new_sha1)) { + for (; cmd; cmd = cmd->next) { + if (shallow_update && data->si->shallow_ref[cmd->index]) + /* to be checked in update_shallow_ref() */ + continue; + if (!is_null_sha1(cmd->new_sha1) && !cmd->skip_update) { hashcpy(sha1, cmd->new_sha1); *cmd_list = cmd->next; return 0; } - cmd = cmd->next; } *cmd_list = NULL; return -1; /* end of list */ @@ -710,10 +1036,14 @@ static void reject_updates_to_hidden(struct command *commands) } } -static void execute_commands(struct command *commands, const char *unpacker_error) +static void execute_commands(struct command *commands, + const char *unpacker_error, + struct shallow_info *si) { + int checked_connectivity; struct command *cmd; unsigned char sha1[20]; + struct iterate_data data; if (unpacker_error) { for (cmd = commands; cmd; cmd = cmd->next) @@ -721,10 +1051,10 @@ static void execute_commands(struct command *commands, const char *unpacker_erro return; } - cmd = commands; - if (check_everything_connected(iterate_receive_command_list, - 0, &cmd)) - set_connectivity_errors(commands); + data.cmds = commands; + data.si = si; + if (check_everything_connected(iterate_receive_command_list, 0, &data)) + set_connectivity_errors(commands, si); reject_updates_to_hidden(commands); @@ -741,6 +1071,7 @@ static void execute_commands(struct command *commands, const char *unpacker_erro free(head_name_to_free); head_name = head_name_to_free = resolve_refdup("HEAD", sha1, 0, NULL); + checked_connectivity = 1; for (cmd = commands; cmd; cmd = cmd->next) { if (cmd->error_string) continue; @@ -748,36 +1079,94 @@ static void execute_commands(struct command *commands, const char *unpacker_erro if (cmd->skip_update) continue; - cmd->error_string = update(cmd); + cmd->error_string = update(cmd, si); + if (shallow_update && !cmd->error_string && + si->shallow_ref[cmd->index]) { + error("BUG: connectivity check has not been run on ref %s", + cmd->ref_name); + checked_connectivity = 0; + } } + + if (shallow_update && !checked_connectivity) + error("BUG: run 'git fsck' for safety.\n" + "If there are errors, try to remove " + "the reported refs above"); } -static struct command *read_head_info(void) +static struct command **queue_command(struct command **tail, + const char *line, + int linelen) +{ + unsigned char old_sha1[20], new_sha1[20]; + struct command *cmd; + const char *refname; + int reflen; + + if (linelen < 83 || + line[40] != ' ' || + line[81] != ' ' || + get_sha1_hex(line, old_sha1) || + get_sha1_hex(line + 41, new_sha1)) + die("protocol error: expected old/new/ref, got '%s'", line); + + refname = line + 82; + reflen = linelen - 82; + cmd = xcalloc(1, sizeof(struct command) + reflen + 1); + hashcpy(cmd->old_sha1, old_sha1); + hashcpy(cmd->new_sha1, new_sha1); + memcpy(cmd->ref_name, refname, reflen); + cmd->ref_name[reflen] = '\0'; + *tail = cmd; + return &cmd->next; +} + +static void queue_commands_from_cert(struct command **tail, + struct strbuf *push_cert) +{ + const char *boc, *eoc; + + if (*tail) + die("protocol error: got both push certificate and unsigned commands"); + + boc = strstr(push_cert->buf, "\n\n"); + if (!boc) + die("malformed push certificate %.*s", 100, push_cert->buf); + else + boc += 2; + eoc = push_cert->buf + parse_signature(push_cert->buf, push_cert->len); + + while (boc < eoc) { + const char *eol = memchr(boc, '\n', eoc - boc); + tail = queue_command(tail, boc, eol ? eol - boc : eoc - eol); + boc = eol ? eol + 1 : eoc; + } +} + +static struct command *read_head_info(struct sha1_array *shallow) { struct command *commands = NULL; struct command **p = &commands; for (;;) { char *line; - unsigned char old_sha1[20], new_sha1[20]; - struct command *cmd; - char *refname; - int len, reflen; + int len, linelen; line = packet_read_line(0, &len); if (!line) break; - if (len < 83 || - line[40] != ' ' || - line[81] != ' ' || - get_sha1_hex(line, old_sha1) || - get_sha1_hex(line + 41, new_sha1)) - die("protocol error: expected old/new/ref, got '%s'", - line); - - refname = line + 82; - reflen = strlen(refname); - if (reflen + 82 < len) { - const char *feature_list = refname + reflen + 1; + + if (len == 48 && starts_with(line, "shallow ")) { + unsigned char sha1[20]; + if (get_sha1_hex(line + 8, sha1)) + die("protocol error: expected shallow sha, got '%s'", + line + 8); + sha1_array_append(shallow, sha1); + continue; + } + + linelen = strlen(line); + if (linelen < len) { + const char *feature_list = line + linelen + 1; if (parse_feature_request(feature_list, "report-status")) report_status = 1; if (parse_feature_request(feature_list, "side-band-64k")) @@ -785,13 +1174,34 @@ static struct command *read_head_info(void) if (parse_feature_request(feature_list, "quiet")) quiet = 1; } - cmd = xcalloc(1, sizeof(struct command) + len - 80); - hashcpy(cmd->old_sha1, old_sha1); - hashcpy(cmd->new_sha1, new_sha1); - memcpy(cmd->ref_name, line + 82, len - 81); - *p = cmd; - p = &cmd->next; + + if (!strcmp(line, "push-cert")) { + int true_flush = 0; + char certbuf[1024]; + + for (;;) { + len = packet_read(0, NULL, NULL, + certbuf, sizeof(certbuf), 0); + if (!len) { + true_flush = 1; + break; + } + if (!strcmp(certbuf, "push-cert-end\n")) + break; /* end of cert */ + strbuf_addstr(&push_cert, certbuf); + } + + if (true_flush) + break; + continue; + } + + p = queue_command(p, line, linelen); } + + if (push_cert.len) + queue_commands_from_cert(p, &push_cert); + return commands; } @@ -817,11 +1227,14 @@ static const char *parse_pack_header(struct pack_header *hdr) static const char *pack_lockfile; -static const char *unpack(int err_fd) +static const char *unpack(int err_fd, struct shallow_info *si) { struct pack_header hdr; + struct argv_array av = ARGV_ARRAY_INIT; const char *hdr_err; + int status; char hdr_arg[38]; + struct child_process child = CHILD_PROCESS_INIT; int fsck_objects = (receive_fsck_objects >= 0 ? receive_fsck_objects : transfer_fsck_objects >= 0 @@ -838,72 +1251,62 @@ static const char *unpack(int err_fd) "--pack_header=%"PRIu32",%"PRIu32, ntohl(hdr.hdr_version), ntohl(hdr.hdr_entries)); + if (si->nr_ours || si->nr_theirs) { + alt_shallow_file = setup_temporary_shallow(si->shallow); + argv_array_pushl(&av, "--shallow-file", alt_shallow_file, NULL); + } + if (ntohl(hdr.hdr_entries) < unpack_limit) { - int code, i = 0; - struct child_process child; - const char *unpacker[5]; - unpacker[i++] = "unpack-objects"; + argv_array_pushl(&av, "unpack-objects", hdr_arg, NULL); if (quiet) - unpacker[i++] = "-q"; + argv_array_push(&av, "-q"); if (fsck_objects) - unpacker[i++] = "--strict"; - unpacker[i++] = hdr_arg; - unpacker[i++] = NULL; - memset(&child, 0, sizeof(child)); - child.argv = unpacker; + argv_array_push(&av, "--strict"); + child.argv = av.argv; child.no_stdout = 1; child.err = err_fd; child.git_cmd = 1; - code = run_command(&child); - if (!code) - return NULL; - return "unpack-objects abnormal exit"; + status = run_command(&child); + if (status) + return "unpack-objects abnormal exit"; } else { - const char *keeper[7]; - int s, status, i = 0; + int s; char keep_arg[256]; - struct child_process ip; 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"); - keeper[i++] = "index-pack"; - keeper[i++] = "--stdin"; + argv_array_pushl(&av, "index-pack", + "--stdin", hdr_arg, keep_arg, NULL); if (fsck_objects) - keeper[i++] = "--strict"; + argv_array_push(&av, "--strict"); if (fix_thin) - keeper[i++] = "--fix-thin"; - keeper[i++] = hdr_arg; - keeper[i++] = keep_arg; - keeper[i++] = NULL; - memset(&ip, 0, sizeof(ip)); - ip.argv = keeper; - ip.out = -1; - ip.err = err_fd; - ip.git_cmd = 1; - status = start_command(&ip); - if (status) { + argv_array_push(&av, "--fix-thin"); + child.argv = av.argv; + child.out = -1; + child.err = err_fd; + child.git_cmd = 1; + status = start_command(&child); + if (status) return "index-pack fork failed"; - } - pack_lockfile = index_pack_lockfile(ip.out); - close(ip.out); - status = finish_command(&ip); - if (!status) { - reprepare_packed_git(); - return NULL; - } - return "index-pack abnormal exit"; + pack_lockfile = index_pack_lockfile(child.out); + close(child.out); + status = finish_command(&child); + if (status) + return "index-pack abnormal exit"; + reprepare_packed_git(); } + return NULL; } -static const char *unpack_with_sideband(void) +static const char *unpack_with_sideband(struct shallow_info *si) { struct async muxer; const char *ret; if (!use_sideband) - return unpack(0); + return unpack(0, si); memset(&muxer, 0, sizeof(muxer)); muxer.proc = copy_to_sideband; @@ -911,12 +1314,97 @@ static const char *unpack_with_sideband(void) if (start_async(&muxer)) return NULL; - ret = unpack(muxer.in); + ret = unpack(muxer.in, si); finish_async(&muxer); return ret; } +static void prepare_shallow_update(struct command *commands, + struct shallow_info *si) +{ + int i, j, k, bitmap_size = (si->ref->nr + 31) / 32; + + si->used_shallow = xmalloc(sizeof(*si->used_shallow) * + si->shallow->nr); + assign_shallow_commits_to_refs(si, si->used_shallow, NULL); + + si->need_reachability_test = + xcalloc(si->shallow->nr, sizeof(*si->need_reachability_test)); + si->reachable = + xcalloc(si->shallow->nr, sizeof(*si->reachable)); + si->shallow_ref = xcalloc(si->ref->nr, sizeof(*si->shallow_ref)); + + for (i = 0; i < si->nr_ours; i++) + si->need_reachability_test[si->ours[i]] = 1; + + for (i = 0; i < si->shallow->nr; i++) { + if (!si->used_shallow[i]) + continue; + for (j = 0; j < bitmap_size; j++) { + if (!si->used_shallow[i][j]) + continue; + si->need_reachability_test[i]++; + for (k = 0; k < 32; k++) + if (si->used_shallow[i][j] & (1 << k)) + si->shallow_ref[j * 32 + k]++; + } + + /* + * true for those associated with some refs and belong + * in "ours" list aka "step 7 not done yet" + */ + si->need_reachability_test[i] = + si->need_reachability_test[i] > 1; + } + + /* + * keep hooks happy by forcing a temporary shallow file via + * env variable because we can't add --shallow-file to every + * command. check_everything_connected() will be done with + * true .git/shallow though. + */ + setenv(GIT_SHALLOW_FILE_ENVIRONMENT, alt_shallow_file, 1); +} + +static void update_shallow_info(struct command *commands, + struct shallow_info *si, + struct sha1_array *ref) +{ + struct command *cmd; + int *ref_status; + remove_nonexistent_theirs_shallow(si); + if (!si->nr_ours && !si->nr_theirs) { + shallow_update = 0; + return; + } + + for (cmd = commands; cmd; cmd = cmd->next) { + if (is_null_sha1(cmd->new_sha1)) + continue; + sha1_array_append(ref, cmd->new_sha1); + cmd->index = ref->nr - 1; + } + si->ref = ref; + + if (shallow_update) { + prepare_shallow_update(commands, si); + return; + } + + ref_status = xmalloc(sizeof(*ref_status) * ref->nr); + assign_shallow_commits_to_refs(si, NULL, ref_status); + for (cmd = commands; cmd; cmd = cmd->next) { + if (is_null_sha1(cmd->new_sha1)) + continue; + if (ref_status[cmd->index]) { + cmd->error_string = "shallow update not allowed"; + cmd->skip_update = 1; + } + } + free(ref_status); +} + static void report(struct command *commands, const char *unpack_status) { struct command *cmd; @@ -954,10 +1442,11 @@ static int delete_only(struct command *commands) int cmd_receive_pack(int argc, const char **argv, const char *prefix) { int advertise_refs = 0; - int stateless_rpc = 0; int i; - char *dir = NULL; struct command *commands; + struct sha1_array shallow = SHA1_ARRAY_INIT; + struct sha1_array ref = SHA1_ARRAY_INIT; + struct shallow_info si; packet_trace_identity("receive-pack"); @@ -986,22 +1475,21 @@ int cmd_receive_pack(int argc, const char **argv, const char *prefix) usage(receive_pack_usage); } - if (dir) + if (service_dir) usage(receive_pack_usage); - dir = xstrdup(arg); + service_dir = arg; } - if (!dir) + if (!service_dir) usage(receive_pack_usage); setup_path(); - if (!enter_repo(dir, 0)) - die("'%s' does not appear to be a git repository", dir); - - if (is_repository_shallow()) - die("attempt to push into a shallow repository"); + if (!enter_repo(service_dir, 0)) + die("'%s' does not appear to be a git repository", service_dir); git_config(receive_pack_config, NULL); + if (cert_nonce_seed) + push_cert_nonce = prepare_push_cert_nonce(service_dir, time(NULL)); if (0 <= transfer_unpack_limit) unpack_limit = transfer_unpack_limit; @@ -1014,12 +1502,17 @@ int cmd_receive_pack(int argc, const char **argv, const char *prefix) if (advertise_refs) return 0; - if ((commands = read_head_info()) != NULL) { + if ((commands = read_head_info(&shallow)) != NULL) { const char *unpack_status = NULL; - if (!delete_only(commands)) - unpack_status = unpack_with_sideband(); - execute_commands(commands, unpack_status); + prepare_shallow_info(&si, &shallow); + if (!si.nr_ours && !si.nr_theirs) + shallow_update = 0; + if (!delete_only(commands)) { + unpack_status = unpack_with_sideband(&si); + update_shallow_info(commands, &si, &ref); + } + execute_commands(commands, unpack_status, &si); if (pack_lockfile) unlink_or_warn(pack_lockfile); if (report_status) @@ -1035,8 +1528,12 @@ int cmd_receive_pack(int argc, const char **argv, const char *prefix) } if (auto_update_server_info) update_server_info(0); + clear_shallow_info(&si); } if (use_sideband) packet_flush(1); + sha1_array_clear(&shallow); + sha1_array_clear(&ref); + free((void *)push_cert_nonce); return 0; } diff --git a/builtin/reflog.c b/builtin/reflog.c index 6eb24c8da2..b6388f75b0 100644 --- a/builtin/reflog.c +++ b/builtin/reflog.c @@ -1,5 +1,5 @@ -#include "cache.h" #include "builtin.h" +#include "lockfile.h" #include "commit.h" #include "refs.h" #include "dir.h" @@ -369,7 +369,7 @@ static int expire_reflog(const char *ref, const unsigned char *sha1, int unused, if (!lock) return error("cannot lock ref '%s'", ref); log_file = git_pathdup("logs/%s", ref); - if (!file_exists(log_file)) + if (!reflog_exists(ref)) goto finish; if (!cmd->dry_run) { newlog_path = git_pathdup("logs/%s.lock", ref); @@ -431,7 +431,7 @@ static int expire_reflog(const char *ref, const unsigned char *sha1, int unused, write_str_in_full(lock->lock_fd, "\n") != 1 || close_ref(lock) < 0)) { status |= error("Couldn't write %s", - lock->lk->filename); + lock->lk->filename.buf); unlink(newlog_path); } else if (rename(newlog_path, log_file)) { status |= error("cannot rename %s to %s", @@ -561,7 +561,7 @@ static void set_reflog_expiry_param(struct cmd_reflog_expire_cb *cb, int slot, c return; /* both given explicitly -- nothing to tweak */ for (ent = reflog_expire_cfg; ent; ent = ent->next) { - if (!fnmatch(ent->pattern, ref, 0)) { + if (!wildmatch(ent->pattern, ref, 0, NULL)) { if (!(slot & EXPIRE_TOTAL)) cb->expire_total = ent->expire_total; if (!(slot & EXPIRE_UNREACH)) @@ -610,12 +610,12 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix) const char *arg = argv[i]; if (!strcmp(arg, "--dry-run") || !strcmp(arg, "-n")) cb.dry_run = 1; - else if (!prefixcmp(arg, "--expire=")) { + else if (starts_with(arg, "--expire=")) { if (parse_expiry_date(arg + 9, &cb.expire_total)) die(_("'%s' is not a valid timestamp"), arg); explicit_expiry |= EXPIRE_TOTAL; } - else if (!prefixcmp(arg, "--expire-unreachable=")) { + else if (starts_with(arg, "--expire-unreachable=")) { if (parse_expiry_date(arg + 21, &cb.expire_unreachable)) die(_("'%s' is not a valid timestamp"), arg); explicit_expiry |= EXPIRE_UNREACH; diff --git a/builtin/remote-ext.c b/builtin/remote-ext.c index 692c834d9d..3b8c22cc75 100644 --- a/builtin/remote-ext.c +++ b/builtin/remote-ext.c @@ -30,16 +30,14 @@ static char *strip_escapes(const char *str, const char *service, size_t rpos = 0; int escape = 0; char special = 0; - size_t psoff = 0; + const char *service_noprefix = service; struct strbuf ret = STRBUF_INIT; - /* Calculate prefix length for \s and lengths for \s and \S */ - if (!strncmp(service, "git-", 4)) - psoff = 4; + skip_prefix(service_noprefix, "git-", &service_noprefix); /* Pass the service to command. */ setenv("GIT_EXT_SERVICE", service, 1); - setenv("GIT_EXT_SERVICE_NOPREFIX", service + psoff, 1); + setenv("GIT_EXT_SERVICE_NOPREFIX", service_noprefix, 1); /* Scan the length of argument. */ while (str[rpos] && (escape || str[rpos] != ' ')) { @@ -85,7 +83,7 @@ static char *strip_escapes(const char *str, const char *service, strbuf_addch(&ret, str[rpos]); break; case 's': - strbuf_addstr(&ret, service + psoff); + strbuf_addstr(&ret, service_noprefix); break; case 'S': strbuf_addstr(&ret, service); @@ -179,9 +177,8 @@ static void send_git_request(int stdin_fd, const char *serv, const char *repo, static int run_child(const char *arg, const char *service) { int r; - struct child_process child; + struct child_process child = CHILD_PROCESS_INIT; - memset(&child, 0, sizeof(child)); child.in = -1; child.out = -1; child.err = 0; diff --git a/builtin/remote.c b/builtin/remote.c index 4e14891095..9a4640dbf0 100644 --- a/builtin/remote.c +++ b/builtin/remote.c @@ -6,6 +6,7 @@ #include "strbuf.h" #include "run-command.h" #include "refs.h" +#include "argv-array.h" static const char * const builtin_remote_usage[] = { N_("git remote [-v | --verbose]"), @@ -77,17 +78,6 @@ static const char * const builtin_remote_seturl_usage[] = { static int verbose; -static int show_all(void); -static int prune_remote(const char *remote, int dry_run); - -static inline int postfixcmp(const char *string, const char *postfix) -{ - int len1 = strlen(string), len2 = strlen(postfix); - if (len1 < len2) - return 1; - return strcmp(string + len1 - len2, postfix); -} - static int fetch_remote(const char *name) { const char *argv[] = { "fetch", name, NULL, NULL }; @@ -260,31 +250,30 @@ static struct string_list branch_list; static const char *abbrev_ref(const char *name, const char *prefix) { - const char *abbrev = skip_prefix(name, prefix); - if (abbrev) - return abbrev; + skip_prefix(name, prefix, &name); return name; } #define abbrev_branch(name) abbrev_ref((name), "refs/heads/") static int config_read_branches(const char *key, const char *value, void *cb) { - if (!prefixcmp(key, "branch.")) { + if (starts_with(key, "branch.")) { const char *orig_key = key; char *name; struct string_list_item *item; struct branch_info *info; enum { REMOTE, MERGE, REBASE } type; + size_t key_len; key += 7; - if (!postfixcmp(key, ".remote")) { - name = xstrndup(key, strlen(key) - 7); + if (strip_suffix(key, ".remote", &key_len)) { + name = xmemdupz(key, key_len); type = REMOTE; - } else if (!postfixcmp(key, ".merge")) { - name = xstrndup(key, strlen(key) - 6); + } else if (strip_suffix(key, ".merge", &key_len)) { + name = xmemdupz(key, key_len); type = MERGE; - } else if (!postfixcmp(key, ".rebase")) { - name = xstrndup(key, strlen(key) - 7); + } else if (strip_suffix(key, ".rebase", &key_len)) { + name = xmemdupz(key, key_len); type = REBASE; } else return 0; @@ -292,7 +281,7 @@ static int config_read_branches(const char *key, const char *value, void *cb) item = string_list_insert(&branch_list, name); if (!item->util) - item->util = xcalloc(sizeof(struct branch_info), 1); + item->util = xcalloc(1, sizeof(struct branch_info)); info = item->util; if (type == REMOTE) { if (info->remote_name) @@ -309,8 +298,13 @@ static int config_read_branches(const char *key, const char *value, void *cb) space = strchr(value, ' '); } string_list_append(&info->merge, xstrdup(value)); - } else - info->rebase = git_config_bool(orig_key, value); + } else { + int v = git_config_maybe_bool(orig_key, value); + if (v >= 0) + info->rebase = v; + else if (!strcmp(value, "preserve")) + info->rebase = 1; + } } return 0; } @@ -403,7 +397,7 @@ static int get_push_ref_states(const struct ref *remote_refs, item = string_list_append(&states->push, abbrev_branch(ref->peer_ref->name)); - item->util = xcalloc(sizeof(struct push_info), 1); + item->util = xcalloc(1, sizeof(struct push_info)); info = item->util; info->forced = ref->force; info->dest = xstrdup(abbrev_branch(ref->name)); @@ -438,7 +432,7 @@ static int get_push_ref_states_noquery(struct ref_states *states) states->push.strdup_strings = 1; if (!remote->push_refspec_nr) { item = string_list_append(&states->push, _("(matching)")); - info = item->util = xcalloc(sizeof(struct push_info), 1); + info = item->util = xcalloc(1, sizeof(struct push_info)); info->status = PUSH_STATUS_NOTQUERIED; info->dest = xstrdup(item->string); } @@ -451,7 +445,7 @@ static int get_push_ref_states_noquery(struct ref_states *states) else item = string_list_append(&states->push, _("(delete)")); - info = item->util = xcalloc(sizeof(struct push_info), 1); + info = item->util = xcalloc(1, sizeof(struct push_info)); info->forced = spec->force; info->status = PUSH_STATUS_NOTQUERIED; info->dest = xstrdup(spec->dst ? spec->dst : item->string); @@ -534,9 +528,9 @@ static int add_branch_for_removal(const char *refname, } /* don't delete non-remote-tracking refs */ - if (prefixcmp(refname, "refs/remotes/")) { + if (!starts_with(refname, "refs/remotes/")) { /* advise user how to delete local branches */ - if (!prefixcmp(refname, "refs/heads/")) + if (starts_with(refname, "refs/heads/")) string_list_append(branches->skipped, abbrev_branch(refname)); /* silently skip over other non-remote refs */ @@ -571,7 +565,7 @@ static int read_remote_branches(const char *refname, const char *symref; strbuf_addf(&buf, "refs/remotes/%s/", rename->old); - if (!prefixcmp(refname, buf.buf)) { + if (starts_with(refname, buf.buf)) { item = string_list_append(rename->remote_branches, xstrdup(refname)); symref = resolve_ref_unsafe(refname, orig_sha1, 1, &flag); if (flag & REF_ISSYMREF) @@ -754,15 +748,23 @@ static int mv(int argc, const char **argv) static int remove_branches(struct string_list *branches) { + const char **branch_names; int i, result = 0; + + branch_names = xmalloc(branches->nr * sizeof(*branch_names)); + for (i = 0; i < branches->nr; i++) + branch_names[i] = branches->items[i].string; + result |= repack_without_refs(branch_names, branches->nr, NULL); + free(branch_names); + for (i = 0; i < branches->nr; i++) { struct string_list_item *item = branches->items + i; const char *refname = item->string; - unsigned char *sha1 = item->util; - if (delete_ref(refname, sha1, 0)) + if (delete_ref(refname, NULL, 0)) result |= error(_("Could not remove branch %s"), refname); } + return result; } @@ -794,10 +796,6 @@ static int rm(int argc, const char **argv) known_remotes.to_delete = remote; for_each_remote(add_known_remote, &known_remotes); - strbuf_addf(&buf, "remote.%s", remote->name); - if (git_config_rename_section(buf.buf, NULL) < 1) - return error(_("Could not remove config section '%s'"), buf.buf); - read_branches(); for (i = 0; i < branch_list.nr; i++) { struct string_list_item *item = branch_list.items + i; @@ -842,6 +840,12 @@ static int rm(int argc, const char **argv) } string_list_clear(&skipped, 0); + if (!result) { + strbuf_addf(&buf, "remote.%s", remote->name); + if (git_config_rename_section(buf.buf, NULL) < 1) + return error(_("Could not remove config section '%s'"), buf.buf); + } + return result; } @@ -1084,6 +1088,64 @@ static int show_push_info_item(struct string_list_item *item, void *cb_data) return 0; } +static int get_one_entry(struct remote *remote, void *priv) +{ + struct string_list *list = priv; + struct strbuf url_buf = STRBUF_INIT; + const char **url; + int i, url_nr; + + if (remote->url_nr > 0) { + strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]); + string_list_append(list, remote->name)->util = + strbuf_detach(&url_buf, NULL); + } else + string_list_append(list, remote->name)->util = NULL; + if (remote->pushurl_nr) { + url = remote->pushurl; + url_nr = remote->pushurl_nr; + } else { + url = remote->url; + url_nr = remote->url_nr; + } + for (i = 0; i < url_nr; i++) + { + strbuf_addf(&url_buf, "%s (push)", url[i]); + string_list_append(list, remote->name)->util = + strbuf_detach(&url_buf, NULL); + } + + return 0; +} + +static int show_all(void) +{ + struct string_list list = STRING_LIST_INIT_NODUP; + int result; + + list.strdup_strings = 1; + result = for_each_remote(get_one_entry, &list); + + if (!result) { + int i; + + sort_string_list(&list); + for (i = 0; i < list.nr; i++) { + struct string_list_item *item = list.items + i; + if (verbose) + printf("%s\t%s\n", item->string, + item->util ? (const char *)item->util : ""); + else { + if (i && !strcmp((item - 1)->string, item->string)) + continue; + printf("%s\n", item->string); + } + } + } + string_list_clear(&list, 1); + return result; +} + static int show(int argc, const char **argv) { int no_query = 0, result = 0, query_flag = 0; @@ -1246,30 +1308,12 @@ static int set_head(int argc, const char **argv) return result; } -static int prune(int argc, const char **argv) -{ - int dry_run = 0, result = 0; - struct option options[] = { - OPT__DRY_RUN(&dry_run, N_("dry run")), - OPT_END() - }; - - argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage, - 0); - - if (argc < 1) - usage_with_options(builtin_remote_prune_usage, options); - - for (; argc; argc--, argv++) - result |= prune_remote(*argv, dry_run); - - return result; -} - static int prune_remote(const char *remote, int dry_run) { int result = 0, i; struct ref_states states; + struct string_list delete_refs_list = STRING_LIST_INIT_NODUP; + const char **delete_refs; const char *dangling_msg = dry_run ? _(" %s will become dangling!") : _(" %s has become dangling!"); @@ -1283,11 +1327,21 @@ static int prune_remote(const char *remote, int dry_run) states.remote->url_nr ? states.remote->url[0] : _("(no URL)")); + + delete_refs = xmalloc(states.stale.nr * sizeof(*delete_refs)); + for (i = 0; i < states.stale.nr; i++) + delete_refs[i] = states.stale.items[i].util; + if (!dry_run) + result |= repack_without_refs(delete_refs, + states.stale.nr, NULL); + free(delete_refs); } for (i = 0; i < states.stale.nr; i++) { const char *refname = states.stale.items[i].util; + string_list_insert(&delete_refs_list, refname); + if (!dry_run) result |= delete_ref(refname, NULL, 0); @@ -1297,13 +1351,35 @@ static int prune_remote(const char *remote, int dry_run) else printf_ln(_(" * [pruned] %s"), abbrev_ref(refname, "refs/remotes/")); - warn_dangling_symref(stdout, dangling_msg, refname); } + warn_dangling_symrefs(stdout, dangling_msg, &delete_refs_list); + string_list_clear(&delete_refs_list, 0); + free_remote_ref_states(&states); return result; } +static int prune(int argc, const char **argv) +{ + int dry_run = 0, result = 0; + struct option options[] = { + OPT__DRY_RUN(&dry_run, N_("dry run")), + OPT_END() + }; + + argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage, + 0); + + if (argc < 1) + usage_with_options(builtin_remote_prune_usage, options); + + for (; argc; argc--, argv++) + result |= prune_remote(*argv, dry_run); + + return result; +} + static int get_remote_default(const char *key, const char *value, void *priv) { if (strcmp(key, "remotes.default") == 0) { @@ -1315,42 +1391,42 @@ static int get_remote_default(const char *key, const char *value, void *priv) static int update(int argc, const char **argv) { - int i, prune = 0; + int i, prune = -1; struct option options[] = { OPT_BOOL('p', "prune", &prune, N_("prune remotes after fetching")), OPT_END() }; - const char **fetch_argv; - int fetch_argc = 0; + struct argv_array fetch_argv = ARGV_ARRAY_INIT; int default_defined = 0; - - fetch_argv = xmalloc(sizeof(char *) * (argc+5)); + int retval; argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage, PARSE_OPT_KEEP_ARGV0); - fetch_argv[fetch_argc++] = "fetch"; + argv_array_push(&fetch_argv, "fetch"); - if (prune) - fetch_argv[fetch_argc++] = "--prune"; + if (prune != -1) + argv_array_push(&fetch_argv, prune ? "--prune" : "--no-prune"); if (verbose) - fetch_argv[fetch_argc++] = "-v"; - fetch_argv[fetch_argc++] = "--multiple"; + argv_array_push(&fetch_argv, "-v"); + argv_array_push(&fetch_argv, "--multiple"); if (argc < 2) - fetch_argv[fetch_argc++] = "default"; + argv_array_push(&fetch_argv, "default"); for (i = 1; i < argc; i++) - fetch_argv[fetch_argc++] = argv[i]; + argv_array_push(&fetch_argv, argv[i]); - if (strcmp(fetch_argv[fetch_argc-1], "default") == 0) { + if (strcmp(fetch_argv.argv[fetch_argv.argc-1], "default") == 0) { git_config(get_remote_default, &default_defined); - if (!default_defined) - fetch_argv[fetch_argc-1] = "--all"; + if (!default_defined) { + argv_array_pop(&fetch_argv); + argv_array_push(&fetch_argv, "--all"); + } } - fetch_argv[fetch_argc] = NULL; - - return run_command_v_opt(fetch_argv, RUN_GIT_CMD); + retval = run_command_v_opt(fetch_argv.argv, RUN_GIT_CMD); + argv_array_clear(&fetch_argv); + return retval; } static int remove_all_fetch_refspecs(const char *remote, const char *key) @@ -1505,64 +1581,6 @@ static int set_url(int argc, const char **argv) return 0; } -static int get_one_entry(struct remote *remote, void *priv) -{ - struct string_list *list = priv; - struct strbuf url_buf = STRBUF_INIT; - const char **url; - int i, url_nr; - - if (remote->url_nr > 0) { - strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]); - string_list_append(list, remote->name)->util = - strbuf_detach(&url_buf, NULL); - } else - string_list_append(list, remote->name)->util = NULL; - if (remote->pushurl_nr) { - url = remote->pushurl; - url_nr = remote->pushurl_nr; - } else { - url = remote->url; - url_nr = remote->url_nr; - } - for (i = 0; i < url_nr; i++) - { - strbuf_addf(&url_buf, "%s (push)", url[i]); - string_list_append(list, remote->name)->util = - strbuf_detach(&url_buf, NULL); - } - - return 0; -} - -static int show_all(void) -{ - struct string_list list = STRING_LIST_INIT_NODUP; - int result; - - list.strdup_strings = 1; - result = for_each_remote(get_one_entry, &list); - - if (!result) { - int i; - - sort_string_list(&list); - for (i = 0; i < list.nr; i++) { - struct string_list_item *item = list.items + i; - if (verbose) - printf("%s\t%s\n", item->string, - item->util ? (const char *)item->util : ""); - else { - if (i && !strcmp((item - 1)->string, item->string)) - continue; - printf("%s\n", item->string); - } - } - } - string_list_clear(&list, 1); - return result; -} - int cmd_remote(int argc, const char **argv, const char *prefix) { struct option options[] = { diff --git a/builtin/repack.c b/builtin/repack.c index a2b9dba522..2aae05d364 100644 --- a/builtin/repack.c +++ b/builtin/repack.c @@ -9,6 +9,8 @@ #include "argv-array.h" static int delta_base_offset = 1; +static int pack_kept_objects = -1; +static int write_bitmaps; static char *packdir, *packtmp; static const char *const git_repack_usage[] = { @@ -22,6 +24,15 @@ static int repack_config(const char *var, const char *value, void *cb) delta_base_offset = git_config_bool(var, value); return 0; } + if (!strcmp(var, "repack.packkeptobjects")) { + pack_kept_objects = git_config_bool(var, value); + return 0; + } + if (!strcmp(var, "repack.writebitmaps") || + !strcmp(var, "pack.writebitmaps")) { + write_bitmaps = git_config_bool(var, value); + return 0; + } return git_default_config(var, value, cb); } @@ -72,16 +83,15 @@ static void get_non_kept_pack_filenames(struct string_list *fname_list) DIR *dir; struct dirent *e; char *fname; - size_t len; if (!(dir = opendir(packdir))) return; while ((e = readdir(dir)) != NULL) { - if (suffixcmp(e->d_name, ".pack")) + size_t len; + if (!strip_suffix(e->d_name, ".pack", &len)) continue; - len = strlen(e->d_name) - strlen(".pack"); fname = xmemdupz(e->d_name, len); if (!file_exists(mkpath("%s/%s.keep", packdir, fname))) @@ -94,7 +104,7 @@ static void get_non_kept_pack_filenames(struct string_list *fname_list) static void remove_redundant_pack(const char *dir_name, const char *base_name) { - const char *exts[] = {".pack", ".idx", ".keep"}; + const char *exts[] = {".pack", ".idx", ".keep", ".bitmap"}; int i; struct strbuf buf = STRBUF_INIT; size_t plen; @@ -115,8 +125,15 @@ static void remove_redundant_pack(const char *dir_name, const char *base_name) int cmd_repack(int argc, const char **argv, const char *prefix) { - const char *exts[2] = {".pack", ".idx"}; - struct child_process cmd; + struct { + const char *name; + unsigned optional:1; + } exts[] = { + {".pack"}, + {".idx"}, + {".bitmap", 1}, + }; + struct child_process cmd = CHILD_PROCESS_INIT; struct string_list_item *item; struct argv_array cmd_args = ARGV_ARRAY_INIT; struct string_list names = STRING_LIST_INIT_DUP; @@ -155,6 +172,8 @@ int cmd_repack(int argc, const char **argv, const char *prefix) OPT__QUIET(&quiet, N_("be quiet")), OPT_BOOL('l', "local", &local, N_("pass --local to git-pack-objects")), + OPT_BOOL('b', "write-bitmap-index", &write_bitmaps, + N_("write bitmap index")), OPT_STRING(0, "unpack-unreachable", &unpack_unreachable, N_("approxidate"), N_("with -A, do not loosen objects older than this")), OPT_STRING(0, "window", &window, N_("n"), @@ -165,6 +184,8 @@ int cmd_repack(int argc, const char **argv, const char *prefix) N_("limits the maximum delta depth")), OPT_STRING(0, "max-pack-size", &max_pack_size, N_("bytes"), N_("maximum size of each packfile")), + OPT_BOOL(0, "pack-kept-objects", &pack_kept_objects, + N_("repack objects in packs marked with .keep")), OPT_END() }; @@ -173,6 +194,9 @@ 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 (pack_kept_objects < 0) + pack_kept_objects = write_bitmaps; + packdir = mkpathdup("%s/pack", get_object_directory()); packtmp = mkpathdup("%s/.tmp-%d-pack", packdir, (int)getpid()); @@ -180,7 +204,8 @@ int cmd_repack(int argc, const char **argv, const char *prefix) argv_array_push(&cmd_args, "pack-objects"); argv_array_push(&cmd_args, "--keep-true-parents"); - argv_array_push(&cmd_args, "--honor-pack-keep"); + if (!pack_kept_objects) + argv_array_push(&cmd_args, "--honor-pack-keep"); argv_array_push(&cmd_args, "--non-empty"); argv_array_push(&cmd_args, "--all"); argv_array_push(&cmd_args, "--reflog"); @@ -196,6 +221,8 @@ int cmd_repack(int argc, const char **argv, const char *prefix) argv_array_pushf(&cmd_args, "--no-reuse-delta"); if (no_reuse_object) argv_array_pushf(&cmd_args, "--no-reuse-object"); + if (write_bitmaps) + argv_array_push(&cmd_args, "--write-bitmap-index"); if (pack_everything & ALL_INTO_ONE) { get_non_kept_pack_filenames(&existing_packs); @@ -223,7 +250,6 @@ int cmd_repack(int argc, const char **argv, const char *prefix) argv_array_push(&cmd_args, packtmp); - memset(&cmd, 0, sizeof(cmd)); cmd.argv = cmd_args.argv; cmd.git_cmd = 1; cmd.out = -1; @@ -256,17 +282,17 @@ int cmd_repack(int argc, const char **argv, const char *prefix) */ failed = 0; for_each_string_list_item(item, &names) { - for (ext = 0; ext < 2; ext++) { + for (ext = 0; ext < ARRAY_SIZE(exts); ext++) { char *fname, *fname_old; - fname = mkpathdup("%s/%s%s", packdir, - item->string, exts[ext]); + fname = mkpathdup("%s/pack-%s%s", packdir, + item->string, exts[ext].name); if (!file_exists(fname)) { free(fname); continue; } fname_old = mkpath("%s/old-%s%s", packdir, - item->string, exts[ext]); + item->string, exts[ext].name); if (file_exists(fname_old)) if (unlink(fname_old)) failed = 1; @@ -313,19 +339,23 @@ int cmd_repack(int argc, const char **argv, const char *prefix) /* Now the ones with the same name are out of the way... */ for_each_string_list_item(item, &names) { - for (ext = 0; ext < 2; ext++) { + for (ext = 0; ext < ARRAY_SIZE(exts); ext++) { char *fname, *fname_old; struct stat statbuffer; + int exists = 0; fname = mkpathdup("%s/pack-%s%s", - packdir, item->string, exts[ext]); + packdir, item->string, exts[ext].name); fname_old = mkpathdup("%s-%s%s", - packtmp, item->string, exts[ext]); + packtmp, item->string, exts[ext].name); if (!stat(fname_old, &statbuffer)) { statbuffer.st_mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH); chmod(fname_old, statbuffer.st_mode); + exists = 1; + } + if (exists || !exts[ext].optional) { + if (rename(fname_old, fname)) + die_errno(_("renaming '%s' failed"), fname_old); } - if (rename(fname_old, fname)) - die_errno(_("renaming '%s' failed"), fname_old); free(fname); free(fname_old); } @@ -333,12 +363,12 @@ int cmd_repack(int argc, const char **argv, const char *prefix) /* Remove the "old-" files */ for_each_string_list_item(item, &names) { - for (ext = 0; ext < 2; ext++) { + for (ext = 0; ext < ARRAY_SIZE(exts); ext++) { char *fname; - fname = mkpath("%s/old-pack-%s%s", + fname = mkpath("%s/old-%s%s", packdir, item->string, - exts[ext]); + exts[ext].name); if (remove_path(fname)) warning(_("removing '%s' failed"), fname); } @@ -347,6 +377,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix) /* End of pack replacement. */ if (delete_redundant) { + int opts = 0; sort_string_list(&names); for_each_string_list_item(item, &existing_packs) { char *sha1; @@ -357,25 +388,13 @@ int cmd_repack(int argc, const char **argv, const char *prefix) if (!string_list_has_string(&names, sha1)) remove_redundant_pack(packdir, item->string); } - argv_array_push(&cmd_args, "prune-packed"); - if (quiet) - argv_array_push(&cmd_args, "--quiet"); - - memset(&cmd, 0, sizeof(cmd)); - cmd.argv = cmd_args.argv; - cmd.git_cmd = 1; - run_command(&cmd); - argv_array_clear(&cmd_args); + if (!quiet && isatty(2)) + opts |= PRUNE_PACKED_VERBOSE; + prune_packed_objects(opts); } - if (!no_update_server_info) { - argv_array_push(&cmd_args, "update-server-info"); - memset(&cmd, 0, sizeof(cmd)); - cmd.argv = cmd_args.argv; - cmd.git_cmd = 1; - run_command(&cmd); - argv_array_clear(&cmd_args); - } + if (!no_update_server_info) + update_server_info(0); remove_temporary_files(); string_list_clear(&names, 0); string_list_clear(&rollback, 0); diff --git a/builtin/replace.c b/builtin/replace.c index b1bd3ef994..8020db8500 100644 --- a/builtin/replace.c +++ b/builtin/replace.c @@ -12,31 +12,77 @@ #include "builtin.h" #include "refs.h" #include "parse-options.h" +#include "run-command.h" +#include "tag.h" static const char * const git_replace_usage[] = { N_("git replace [-f] <object> <replacement>"), + N_("git replace [-f] --edit <object>"), + N_("git replace [-f] --graft <commit> [<parent>...]"), N_("git replace -d <object>..."), - N_("git replace -l [<pattern>]"), + N_("git replace [--format=<format>] [-l [<pattern>]]"), NULL }; +enum replace_format { + REPLACE_FORMAT_SHORT, + REPLACE_FORMAT_MEDIUM, + REPLACE_FORMAT_LONG +}; + +struct show_data { + const char *pattern; + enum replace_format format; +}; + static int show_reference(const char *refname, const unsigned char *sha1, int flag, void *cb_data) { - const char *pattern = cb_data; + struct show_data *data = cb_data; - if (!fnmatch(pattern, refname, 0)) - printf("%s\n", refname); + if (!wildmatch(data->pattern, refname, 0, NULL)) { + if (data->format == REPLACE_FORMAT_SHORT) + printf("%s\n", refname); + else if (data->format == REPLACE_FORMAT_MEDIUM) + printf("%s -> %s\n", refname, sha1_to_hex(sha1)); + else { /* data->format == REPLACE_FORMAT_LONG */ + unsigned char object[20]; + enum object_type obj_type, repl_type; + + if (get_sha1(refname, object)) + 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); + + printf("%s (%s) -> %s (%s)\n", refname, typename(obj_type), + sha1_to_hex(sha1), typename(repl_type)); + } + } return 0; } -static int list_replace_refs(const char *pattern) +static int list_replace_refs(const char *pattern, const char *format) { + struct show_data data; + if (pattern == NULL) pattern = "*"; + data.pattern = pattern; - for_each_replace_ref(show_reference, (void *) pattern); + if (format == NULL || *format == '\0' || !strcmp(format, "short")) + data.format = REPLACE_FORMAT_SHORT; + else if (!strcmp(format, "medium")) + data.format = REPLACE_FORMAT_MEDIUM; + else if (!strcmp(format, "long")) + data.format = REPLACE_FORMAT_LONG; + else + die("invalid replace format '%s'\n" + "valid formats are 'short', 'medium' and 'long'\n", + format); + + for_each_replace_ref(show_reference, (void *) &data); return 0; } @@ -81,26 +127,37 @@ static int delete_replace_ref(const char *name, const char *ref, return 0; } -static int replace_object(const char *object_ref, const char *replace_ref, - int force) +static void check_ref_valid(unsigned char object[20], + unsigned char prev[20], + char *ref, + int ref_size, + int force) { - unsigned char object[20], prev[20], repl[20]; - enum object_type obj_type, repl_type; - char ref[PATH_MAX]; - struct ref_lock *lock; - - if (get_sha1(object_ref, object)) - die("Failed to resolve '%s' as a valid ref.", object_ref); - if (get_sha1(replace_ref, repl)) - die("Failed to resolve '%s' as a valid ref.", replace_ref); - - if (snprintf(ref, sizeof(ref), + if (snprintf(ref, ref_size, "refs/replace/%s", - sha1_to_hex(object)) > sizeof(ref) - 1) + 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); + else if (!force) + die("replace ref '%s' already exists", ref); +} + +static int replace_object_sha1(const char *object_ref, + unsigned char object[20], + const char *replace_ref, + unsigned char repl[20], + int force) +{ + unsigned char prev[20]; + enum object_type obj_type, repl_type; + char ref[PATH_MAX]; + struct ref_transaction *transaction; + struct strbuf err = STRBUF_INIT; + obj_type = sha1_object_info(object, NULL); repl_type = sha1_object_info(repl, NULL); if (!force && obj_type != repl_type) @@ -110,63 +167,331 @@ static int replace_object(const char *object_ref, const char *replace_ref, object_ref, typename(obj_type), replace_ref, typename(repl_type)); - if (read_ref(ref, prev)) - hashclr(prev); - else if (!force) - die("replace ref '%s' already exists", ref); + check_ref_valid(object, prev, ref, sizeof(ref), force); - lock = lock_any_ref_for_update(ref, prev, 0, NULL); - if (!lock) - die("%s: cannot lock the ref", ref); - if (write_ref_sha1(lock, repl, NULL) < 0) - die("%s: cannot update the ref", ref); + transaction = ref_transaction_begin(&err); + if (!transaction || + ref_transaction_update(transaction, ref, repl, prev, 0, 1, &err) || + ref_transaction_commit(transaction, NULL, &err)) + die("%s", err.buf); + ref_transaction_free(transaction); return 0; } +static int replace_object(const char *object_ref, const char *replace_ref, int force) +{ + unsigned char object[20], repl[20]; + + if (get_sha1(object_ref, object)) + die("Failed to resolve '%s' as a valid ref.", object_ref); + if (get_sha1(replace_ref, repl)) + die("Failed to resolve '%s' as a valid ref.", replace_ref); + + return replace_object_sha1(object_ref, object, replace_ref, repl, force); +} + +/* + * Write the contents of the object named by "sha1" to the file "filename". + * If "raw" is true, then the object's raw contents are printed according to + * "type". Otherwise, we pretty-print the contents for human editing. + */ +static void export_object(const unsigned char *sha1, enum object_type type, + int raw, const char *filename) +{ + struct child_process cmd = CHILD_PROCESS_INIT; + int fd; + + fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666); + if (fd < 0) + die_errno("unable to open %s for writing", filename); + + argv_array_push(&cmd.args, "--no-replace-objects"); + argv_array_push(&cmd.args, "cat-file"); + if (raw) + argv_array_push(&cmd.args, typename(type)); + else + argv_array_push(&cmd.args, "-p"); + argv_array_push(&cmd.args, sha1_to_hex(sha1)); + cmd.git_cmd = 1; + cmd.out = fd; + + if (run_command(&cmd)) + die("cat-file reported failure"); +} + +/* + * Read a previously-exported (and possibly edited) object back from "filename", + * interpreting it as "type", and writing the result to the object database. + * The sha1 of the written object is returned via sha1. + */ +static void import_object(unsigned char *sha1, enum object_type type, + int raw, const char *filename) +{ + int fd; + + fd = open(filename, O_RDONLY); + if (fd < 0) + die_errno("unable to open %s for reading", filename); + + if (!raw && type == OBJ_TREE) { + const char *argv[] = { "mktree", NULL }; + struct child_process cmd = CHILD_PROCESS_INIT; + struct strbuf result = STRBUF_INIT; + + cmd.argv = argv; + cmd.git_cmd = 1; + cmd.in = fd; + cmd.out = -1; + + if (start_command(&cmd)) + die("unable to spawn mktree"); + + if (strbuf_read(&result, cmd.out, 41) < 0) + die_errno("unable to read from mktree"); + close(cmd.out); + + if (finish_command(&cmd)) + die("mktree reported failure"); + if (get_sha1_hex(result.buf, sha1) < 0) + die("mktree did not return an object name"); + + strbuf_release(&result); + } else { + struct stat st; + int flags = HASH_FORMAT_CHECK | HASH_WRITE_OBJECT; + + if (fstat(fd, &st) < 0) + die_errno("unable to fstat %s", filename); + if (index_fd(sha1, fd, &st, type, NULL, flags) < 0) + die("unable to write object to database"); + /* index_fd close()s fd for us */ + } + + /* + * No need to close(fd) here; both run-command and index-fd + * will have done it for us. + */ +} + +static int edit_and_replace(const char *object_ref, int force, int raw) +{ + char *tmpfile = git_pathdup("REPLACE_EDITOBJ"); + enum object_type type; + unsigned char old[20], new[20], prev[20]; + char ref[PATH_MAX]; + + if (get_sha1(object_ref, old) < 0) + die("Not a valid object name: '%s'", object_ref); + + type = sha1_object_info(old, NULL); + if (type < 0) + die("unable to get object type for %s", sha1_to_hex(old)); + + check_ref_valid(old, prev, ref, sizeof(ref), force); + + export_object(old, type, raw, tmpfile); + if (launch_editor(tmpfile, NULL, NULL) < 0) + die("editing object file failed"); + import_object(new, type, raw, tmpfile); + + free(tmpfile); + + if (!hashcmp(old, new)) + return error("new object is the same as the old one: '%s'", sha1_to_hex(old)); + + return replace_object_sha1(object_ref, old, "replacement", new, force); +} + +static void replace_parents(struct strbuf *buf, int argc, const char **argv) +{ + struct strbuf new_parents = STRBUF_INIT; + const char *parent_start, *parent_end; + int i; + + /* find existing parents */ + parent_start = buf->buf; + parent_start += 46; /* "tree " + "hex sha1" + "\n" */ + parent_end = parent_start; + + while (starts_with(parent_end, "parent ")) + parent_end += 48; /* "parent " + "hex sha1" + "\n" */ + + /* prepare new parents */ + for (i = 0; i < argc; i++) { + unsigned char sha1[20]; + if (get_sha1(argv[i], sha1) < 0) + die(_("Not a valid object name: '%s'"), argv[i]); + lookup_commit_or_die(sha1, argv[i]); + strbuf_addf(&new_parents, "parent %s\n", sha1_to_hex(sha1)); + } + + /* replace existing parents with new ones */ + strbuf_splice(buf, parent_start - buf->buf, parent_end - parent_start, + new_parents.buf, new_parents.len); + + strbuf_release(&new_parents); +} + +struct check_mergetag_data { + int argc; + const char **argv; +}; + +static void check_one_mergetag(struct commit *commit, + struct commit_extra_header *extra, + void *data) +{ + struct check_mergetag_data *mergetag_data = (struct check_mergetag_data *)data; + const char *ref = mergetag_data->argv[0]; + unsigned char tag_sha1[20]; + struct tag *tag; + int i; + + hash_sha1_file(extra->value, extra->len, typename(OBJ_TAG), tag_sha1); + tag = lookup_tag(tag_sha1); + if (!tag) + die(_("bad mergetag in commit '%s'"), ref); + if (parse_tag_buffer(tag, extra->value, extra->len)) + die(_("malformed mergetag in commit '%s'"), ref); + + /* iterate over new parents */ + for (i = 1; i < mergetag_data->argc; i++) { + unsigned char sha1[20]; + if (get_sha1(mergetag_data->argv[i], sha1) < 0) + die(_("Not a valid object name: '%s'"), mergetag_data->argv[i]); + if (!hashcmp(tag->tagged->sha1, sha1)) + return; /* found */ + } + + die(_("original commit '%s' contains mergetag '%s' that is discarded; " + "use --edit instead of --graft"), ref, sha1_to_hex(tag_sha1)); +} + +static void check_mergetags(struct commit *commit, int argc, const char **argv) +{ + struct check_mergetag_data mergetag_data; + + mergetag_data.argc = argc; + mergetag_data.argv = argv; + for_each_mergetag(check_one_mergetag, commit, &mergetag_data); +} + +static int create_graft(int argc, const char **argv, int force) +{ + unsigned char old[20], new[20]; + const char *old_ref = argv[0]; + struct commit *commit; + struct strbuf buf = STRBUF_INIT; + const char *buffer; + unsigned long size; + + if (get_sha1(old_ref, old) < 0) + die(_("Not a valid object name: '%s'"), old_ref); + commit = lookup_commit_or_die(old, old_ref); + + buffer = get_commit_buffer(commit, &size); + strbuf_add(&buf, buffer, size); + unuse_commit_buffer(commit, buffer); + + replace_parents(&buf, argc - 1, &argv[1]); + + if (remove_signature(&buf)) { + warning(_("the original commit '%s' has a gpg signature."), old_ref); + warning(_("the signature will be removed in the replacement commit!")); + } + + check_mergetags(commit, argc, argv); + + if (write_sha1_file(buf.buf, buf.len, commit_type, new)) + die(_("could not write replacement commit for: '%s'"), old_ref); + + strbuf_release(&buf); + + if (!hashcmp(old, new)) + return error("new commit is the same as the old one: '%s'", sha1_to_hex(old)); + + return replace_object_sha1(old_ref, old, "replacement", new, force); +} + int cmd_replace(int argc, const char **argv, const char *prefix) { - int list = 0, delete = 0, force = 0; + int force = 0; + int raw = 0; + const char *format = NULL; + enum { + MODE_UNSPECIFIED = 0, + MODE_LIST, + MODE_DELETE, + MODE_EDIT, + MODE_GRAFT, + MODE_REPLACE + } cmdmode = MODE_UNSPECIFIED; struct option options[] = { - OPT_BOOL('l', "list", &list, N_("list replace refs")), - OPT_BOOL('d', "delete", &delete, N_("delete replace refs")), + OPT_CMDMODE('l', "list", &cmdmode, N_("list replace refs"), MODE_LIST), + OPT_CMDMODE('d', "delete", &cmdmode, N_("delete replace refs"), MODE_DELETE), + OPT_CMDMODE('e', "edit", &cmdmode, N_("edit existing object"), MODE_EDIT), + OPT_CMDMODE('g', "graft", &cmdmode, N_("change a commit's parents"), MODE_GRAFT), OPT_BOOL('f', "force", &force, N_("replace the ref if it exists")), + OPT_BOOL(0, "raw", &raw, N_("do not pretty-print contents for --edit")), + OPT_STRING(0, "format", &format, N_("format"), N_("use this format")), OPT_END() }; + check_replace_refs = 0; + argc = parse_options(argc, argv, prefix, options, git_replace_usage, 0); - if (list && delete) - usage_msg_opt("-l and -d cannot be used together", + if (!cmdmode) + cmdmode = argc ? MODE_REPLACE : MODE_LIST; + + if (format && cmdmode != MODE_LIST) + usage_msg_opt("--format cannot be used when not listing", + git_replace_usage, options); + + if (force && + cmdmode != MODE_REPLACE && + cmdmode != MODE_EDIT && + cmdmode != MODE_GRAFT) + usage_msg_opt("-f only makes sense when writing a replacement", git_replace_usage, options); - if (force && (list || delete)) - usage_msg_opt("-f cannot be used with -d or -l", + if (raw && cmdmode != MODE_EDIT) + usage_msg_opt("--raw only makes sense with --edit", git_replace_usage, options); - /* Delete refs */ - if (delete) { + switch (cmdmode) { + case MODE_DELETE: if (argc < 1) usage_msg_opt("-d needs at least one argument", git_replace_usage, options); return for_each_replace_name(argv, delete_replace_ref); - } - /* Replace object */ - if (!list && argc) { + case MODE_REPLACE: if (argc != 2) usage_msg_opt("bad number of arguments", git_replace_usage, options); return replace_object(argv[0], argv[1], force); - } - /* List refs, even if "list" is not set */ - if (argc > 1) - usage_msg_opt("only one pattern can be given with -l", - git_replace_usage, options); - if (force) - usage_msg_opt("-f needs some arguments", - git_replace_usage, options); + case MODE_EDIT: + if (argc != 1) + usage_msg_opt("-e needs exactly one argument", + git_replace_usage, options); + return edit_and_replace(argv[0], force, raw); + + case MODE_GRAFT: + if (argc < 1) + usage_msg_opt("-g needs at least one argument", + git_replace_usage, options); + return create_graft(argc, argv, force); - return list_replace_refs(argv[0]); + case MODE_LIST: + if (argc > 1) + usage_msg_opt("only one pattern can be given with -l", + git_replace_usage, options); + return list_replace_refs(argv[0], format); + + default: + die("BUG: invalid cmdmode %d", (int)cmdmode); + } } diff --git a/builtin/rerere.c b/builtin/rerere.c index 4e51addb3e..98eb8c5404 100644 --- a/builtin/rerere.c +++ b/builtin/rerere.c @@ -60,6 +60,8 @@ int cmd_rerere(int argc, const char **argv, const char *prefix) argc = parse_options(argc, argv, prefix, options, rerere_usage, 0); + git_config(git_xmerge_config, NULL); + if (autoupdate == 1) flags = RERERE_AUTOUPDATE; if (autoupdate == 0) diff --git a/builtin/reset.c b/builtin/reset.c index 60048030dd..4c08ddc1ca 100644 --- a/builtin/reset.c +++ b/builtin/reset.c @@ -8,6 +8,7 @@ * Copyright (c) 2005, 2006 Linus Torvalds and Junio C Hamano */ #include "builtin.h" +#include "lockfile.h" #include "tag.h" #include "object.h" #include "commit.h" @@ -84,7 +85,7 @@ static int reset_index(const unsigned char *sha1, int reset_type, int quiet) if (reset_type == MIXED || reset_type == HARD) { tree = parse_tree_indirect(sha1); - prime_cache_tree(&active_cache_tree, tree); + prime_cache_tree(&the_index, tree); } return 0; @@ -93,7 +94,7 @@ static int reset_index(const unsigned char *sha1, int reset_type, int quiet) static void print_new_head_line(struct commit *commit) { const char *hex, *body; - char *msg; + const char *msg; hex = find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV); printf(_("HEAD is now at %s"), hex); @@ -109,32 +110,41 @@ static void print_new_head_line(struct commit *commit) } else printf("\n"); - logmsg_free(msg, commit); + unuse_commit_buffer(commit, msg); } static void update_index_from_diff(struct diff_queue_struct *q, struct diff_options *opt, void *data) { int i; + int intent_to_add = *(int *)data; for (i = 0; i < q->nr; i++) { struct diff_filespec *one = q->queue[i]->one; - if (one->mode && !is_null_sha1(one->sha1)) { - struct cache_entry *ce; - ce = make_cache_entry(one->mode, one->sha1, one->path, - 0, 0); - if (!ce) - die(_("make_cache_entry failed for path '%s'"), - one->path); - add_cache_entry(ce, ADD_CACHE_OK_TO_ADD | - ADD_CACHE_OK_TO_REPLACE); - } else + int is_missing = !(one->mode && !is_null_sha1(one->sha1)); + struct cache_entry *ce; + + if (is_missing && !intent_to_add) { remove_file_from_cache(one->path); + continue; + } + + ce = make_cache_entry(one->mode, one->sha1, one->path, + 0, 0); + if (!ce) + die(_("make_cache_entry failed for path '%s'"), + one->path); + if (is_missing) { + ce->ce_flags |= CE_INTENT_TO_ADD; + set_object_name_for_intent_to_add_entry(ce); + } + add_cache_entry(ce, ADD_CACHE_OK_TO_ADD | ADD_CACHE_OK_TO_REPLACE); } } static int read_from_tree(const struct pathspec *pathspec, - unsigned char *tree_sha1) + unsigned char *tree_sha1, + int intent_to_add) { struct diff_options opt; @@ -142,6 +152,7 @@ static int read_from_tree(const struct pathspec *pathspec, copy_pathspec(&opt.pathspec, pathspec); opt.output_format = DIFF_FORMAT_CALLBACK; opt.format_callback = update_index_from_diff; + opt.format_callback_data = &intent_to_add; if (do_diff_cache(tree_sha1, &opt)) return 1; @@ -242,11 +253,13 @@ static int reset_refs(const char *rev, const unsigned char *sha1) if (!get_sha1("HEAD", sha1_orig)) { orig = sha1_orig; set_reflog_message(&msg, "updating ORIG_HEAD", NULL); - update_ref(msg.buf, "ORIG_HEAD", orig, old_orig, 0, MSG_ON_ERR); + update_ref(msg.buf, "ORIG_HEAD", orig, old_orig, 0, + UPDATE_REFS_MSG_ON_ERR); } else if (old_orig) delete_ref("ORIG_HEAD", old_orig, 0); set_reflog_message(&msg, "updating HEAD", rev); - update_ref_status = update_ref(msg.buf, "HEAD", sha1, orig, 0, MSG_ON_ERR); + update_ref_status = update_ref(msg.buf, "HEAD", sha1, orig, 0, + UPDATE_REFS_MSG_ON_ERR); strbuf_release(&msg); return update_ref_status; } @@ -258,6 +271,7 @@ int cmd_reset(int argc, const char **argv, const char *prefix) const char *rev; unsigned char sha1[20]; struct pathspec pathspec; + int intent_to_add = 0; const struct option options[] = { OPT__QUIET(&quiet, N_("be quiet, only report errors")), OPT_SET_INT(0, "mixed", &reset_type, @@ -270,6 +284,8 @@ int cmd_reset(int argc, const char **argv, const char *prefix) OPT_SET_INT(0, "keep", &reset_type, N_("reset HEAD but keep local changes"), KEEP), OPT_BOOL('p', "patch", &patch_mode, N_("select hunks interactively")), + OPT_BOOL('N', "intent-to-add", &intent_to_add, + N_("record only the fact that removed paths will be added later")), OPT_END() }; @@ -320,13 +336,16 @@ int cmd_reset(int argc, const char **argv, const char *prefix) if (reset_type == NONE) reset_type = MIXED; /* by default */ - if (reset_type != SOFT && reset_type != MIXED) + if (reset_type != SOFT && (reset_type != MIXED || get_git_work_tree())) setup_work_tree(); if (reset_type == MIXED && is_bare_repository()) die(_("%s reset is not allowed in a bare repository"), _(reset_type_names[reset_type])); + if (intent_to_add && reset_type != MIXED) + die(_("-N can only be used with --mixed")); + /* Soft reset does not touch the index file nor the working tree * at all, but requires them in a good order. Other resets reset * the index file to the tree object we are switching to. */ @@ -335,13 +354,14 @@ int cmd_reset(int argc, const char **argv, const char *prefix) if (reset_type != SOFT) { struct lock_file *lock = xcalloc(1, sizeof(*lock)); - int newfd = hold_locked_index(lock, 1); + hold_locked_index(lock, 1); if (reset_type == MIXED) { int flags = quiet ? REFRESH_QUIET : REFRESH_IN_PORCELAIN; - if (read_from_tree(&pathspec, sha1)) + if (read_from_tree(&pathspec, sha1, intent_to_add)) return 1; - refresh_index(&the_index, flags, NULL, NULL, - _("Unstaged changes after reset:")); + 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); if (reset_type == KEEP && !err) @@ -350,8 +370,7 @@ int cmd_reset(int argc, const char **argv, const char *prefix) die(_("Could not reset index file to revision '%s'."), rev); } - if (write_cache(newfd, active_cache, active_nr) || - commit_locked_index(lock)) + if (write_locked_index(&the_index, lock, COMMIT_LOCK)) die(_("Could not write new index file.")); } diff --git a/builtin/rev-list.c b/builtin/rev-list.c index 0745e2d053..ff84a825ff 100644 --- a/builtin/rev-list.c +++ b/builtin/rev-list.c @@ -3,6 +3,8 @@ #include "diff.h" #include "revision.h" #include "list-objects.h" +#include "pack.h" +#include "pack-bitmap.h" #include "builtin.h" #include "log-tree.h" #include "graph.h" @@ -104,7 +106,7 @@ static void show_commit(struct commit *commit, void *data) else putchar('\n'); - if (revs->verbose_header && commit->buffer) { + if (revs->verbose_header && get_cached_commit_buffer(commit, NULL)) { struct strbuf buf = STRBUF_INIT; struct pretty_print_context ctx = {0}; ctx.abbrev = revs->abbrev; @@ -171,8 +173,7 @@ static void finish_commit(struct commit *commit, void *data) free_commit_list(commit->parents); commit->parents = NULL; } - free(commit->buffer); - commit->buffer = NULL; + free_commit_buffer(commit); } static void finish_object(struct object *obj, @@ -257,6 +258,18 @@ static int show_bisect_vars(struct rev_list_info *info, int reaches, int all) return 0; } +static int show_object_fast( + const unsigned char *sha1, + enum object_type type, + int exclude, + uint32_t name_hash, + struct packed_git *found_pack, + off_t found_offset) +{ + fprintf(stdout, "%s\n", sha1_to_hex(sha1)); + return 1; +} + int cmd_rev_list(int argc, const char **argv, const char *prefix) { struct rev_info revs; @@ -265,6 +278,7 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix) int bisect_list = 0; int bisect_show_vars = 0; int bisect_find_all = 0; + int use_bitmap_index = 0; git_config(git_default_config, NULL); init_revisions(&revs, prefix); @@ -306,6 +320,14 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix) bisect_show_vars = 1; continue; } + if (!strcmp(arg, "--use-bitmap-index")) { + use_bitmap_index = 1; + continue; + } + if (!strcmp(arg, "--test-bitmap")) { + test_bitmap_walk(&revs); + return 0; + } usage(rev_list_usage); } @@ -333,6 +355,22 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix) if (bisect_list) revs.limited = 1; + if (use_bitmap_index) { + if (revs.count && !revs.left_right && !revs.cherry_mark) { + uint32_t commit_count; + if (!prepare_bitmap_walk(&revs)) { + count_bitmap_commit_list(&commit_count, NULL, NULL, NULL); + printf("%d\n", commit_count); + return 0; + } + } else if (revs.tag_objects && revs.tree_objects && revs.blob_objects) { + if (!prepare_bitmap_walk(&revs)) { + traverse_bitmap_commit_list(&show_object_fast); + return 0; + } + } + } + if (prepare_revision_walk(&revs)) die("revision walk setup failed"); if (revs.tree_objects) diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c index c4b768ffda..35d3c43ed6 100644 --- a/builtin/rev-parse.c +++ b/builtin/rev-parse.c @@ -9,6 +9,9 @@ #include "quote.h" #include "builtin.h" #include "parse-options.h" +#include "diff.h" +#include "revision.h" +#include "split-index.h" #define DO_REVS 1 #define DO_NOREV 2 @@ -30,6 +33,9 @@ static int abbrev_ref; static int abbrev_ref_strict; static int output_sq; +static int stuck_long; +static struct string_list *ref_excludes; + /* * Some arguments are relevant "revision" arguments, * others are about output format or other details. @@ -145,6 +151,7 @@ static void show_rev(int type, const unsigned char *sha1, const char *name) error("refname '%s' is ambiguous", name); break; } + free(full); } else { show_with_type(type, name); } @@ -185,6 +192,8 @@ static int show_default(void) static int show_reference(const char *refname, const unsigned char *sha1, int flag, void *cb_data) { + if (ref_excluded(ref_excludes, refname)) + return 0; show_rev(NORMAL, sha1, refname); return 0; } @@ -324,12 +333,15 @@ static int parseopt_dump(const struct option *o, const char *arg, int unset) struct strbuf *parsed = o->value; if (unset) strbuf_addf(parsed, " --no-%s", o->long_name); - else if (o->short_name) + else if (o->short_name && (o->long_name == NULL || !stuck_long)) strbuf_addf(parsed, " -%c", o->short_name); else strbuf_addf(parsed, " --%s", o->long_name); if (arg) { - strbuf_addch(parsed, ' '); + if (!stuck_long) + strbuf_addch(parsed, ' '); + else if (o->long_name) + strbuf_addch(parsed, '='); sq_quote_buf(parsed, arg); } return 0; @@ -355,6 +367,8 @@ static int cmd_parseopt(int argc, const char **argv, const char *prefix) OPT_BOOL(0, "stop-at-non-option", &stop_at_non_option, N_("stop parsing after the " "first non-option argument")), + OPT_BOOL(0, "stuck-long", &stuck_long, + N_("output in stuck long form")), OPT_END(), }; @@ -383,9 +397,10 @@ static int cmd_parseopt(int argc, const char **argv, const char *prefix) usage[unb++] = strbuf_detach(&sb, NULL); } - /* parse: (<short>|<short>,<long>|<long>)[=?]? SP+ <help> */ + /* parse: (<short>|<short>,<long>|<long>)[*=?!]*<arghint>? SP+ <help> */ while (strbuf_getline(&sb, stdin, '\n') != EOF) { const char *s; + const char *end; struct option *o; if (!sb.len) @@ -407,6 +422,16 @@ static int cmd_parseopt(int argc, const char **argv, const char *prefix) 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) { case '=': @@ -483,7 +508,9 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) int has_dashdash = 0; int output_prefix = 0; unsigned char sha1[20]; + unsigned int flags = 0; const char *name = NULL; + struct object_context unused; if (argc > 1 && !strcmp("--parseopt", argv[1])) return cmd_parseopt(argc - 1, argv + 1, prefix); @@ -520,7 +547,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) } continue; } - if (!prefixcmp(arg, "-n")) { + if (starts_with(arg, "-n")) { if ((filter & DO_FLAGS) && (filter & DO_REVS)) show(arg); continue; @@ -535,15 +562,17 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) continue; } if (!strcmp(arg, "--default")) { - def = argv[i+1]; - i++; + def = argv[++i]; + if (!def) + die("--default requires an argument"); continue; } if (!strcmp(arg, "--prefix")) { - prefix = argv[i+1]; + prefix = argv[++i]; + if (!prefix) + die("--prefix requires an argument"); startup_info->prefix = prefix; output_prefix = 1; - i++; continue; } if (!strcmp(arg, "--revs-only")) { @@ -569,10 +598,11 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) } if (!strcmp(arg, "--quiet") || !strcmp(arg, "-q")) { quiet = 1; + flags |= GET_SHA1_QUIETLY; continue; } if (!strcmp(arg, "--short") || - !prefixcmp(arg, "--short=")) { + starts_with(arg, "--short=")) { filter &= ~(DO_FLAGS|DO_NOREV); verify = 1; abbrev = DEFAULT_ABBREV; @@ -600,7 +630,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) symbolic = SHOW_SYMBOLIC_FULL; continue; } - if (!prefixcmp(arg, "--abbrev-ref") && + if (starts_with(arg, "--abbrev-ref") && (!arg[12] || arg[12] == '=')) { abbrev_ref = 1; abbrev_ref_strict = warn_ambiguous_refs; @@ -618,7 +648,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) for_each_ref(show_reference, NULL); continue; } - if (!prefixcmp(arg, "--disambiguate=")) { + if (starts_with(arg, "--disambiguate=")) { for_each_abbrev(arg + 15, show_abbrev, NULL); continue; } @@ -627,35 +657,46 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) for_each_ref_in("refs/bisect/good", anti_reference, NULL); continue; } - if (!prefixcmp(arg, "--branches=")) { + if (starts_with(arg, "--branches=")) { for_each_glob_ref_in(show_reference, arg + 11, "refs/heads/", NULL); + clear_ref_exclusion(&ref_excludes); continue; } if (!strcmp(arg, "--branches")) { for_each_branch_ref(show_reference, NULL); + clear_ref_exclusion(&ref_excludes); continue; } - if (!prefixcmp(arg, "--tags=")) { + if (starts_with(arg, "--tags=")) { for_each_glob_ref_in(show_reference, arg + 7, "refs/tags/", NULL); + clear_ref_exclusion(&ref_excludes); continue; } if (!strcmp(arg, "--tags")) { for_each_tag_ref(show_reference, NULL); + clear_ref_exclusion(&ref_excludes); continue; } - if (!prefixcmp(arg, "--glob=")) { + if (starts_with(arg, "--glob=")) { for_each_glob_ref(show_reference, arg + 7, NULL); + clear_ref_exclusion(&ref_excludes); continue; } - if (!prefixcmp(arg, "--remotes=")) { + if (starts_with(arg, "--remotes=")) { for_each_glob_ref_in(show_reference, arg + 10, "refs/remotes/", NULL); + clear_ref_exclusion(&ref_excludes); continue; } if (!strcmp(arg, "--remotes")) { for_each_remote_ref(show_reference, NULL); + clear_ref_exclusion(&ref_excludes); + continue; + } + if (starts_with(arg, "--exclude=")) { + add_ref_exclusion(&ref_excludes, arg + 10); continue; } if (!strcmp(arg, "--local-env-vars")) { @@ -698,7 +739,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) } if (!strcmp(arg, "--git-dir")) { const char *gitdir = getenv(GIT_DIR_ENVIRONMENT); - static char cwd[PATH_MAX]; + char *cwd; int len; if (gitdir) { puts(gitdir); @@ -708,16 +749,19 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) puts(".git"); continue; } - if (!getcwd(cwd, PATH_MAX)) - die_errno("unable to get current working directory"); + cwd = xgetcwd(); len = strlen(cwd); printf("%s%s.git\n", cwd, len && cwd[len-1] != '/' ? "/" : ""); + free(cwd); continue; } if (!strcmp(arg, "--resolve-git-dir")) { - const char *gitdir = resolve_gitdir(argv[i+1]); + 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+1]); + die("not a gitdir '%s'", argv[i]); puts(gitdir); continue; } @@ -736,19 +780,28 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) : "false"); continue; } - if (!prefixcmp(arg, "--since=")) { + if (!strcmp(arg, "--shared-index-path")) { + if (read_cache() < 0) + die(_("Could not read the index")); + if (the_index.split_index) { + const unsigned char *sha1 = the_index.split_index->base_sha1; + puts(git_path("sharedindex.%s", sha1_to_hex(sha1))); + } + continue; + } + if (starts_with(arg, "--since=")) { show_datestring("--max-age=", arg+8); continue; } - if (!prefixcmp(arg, "--after=")) { + if (starts_with(arg, "--after=")) { show_datestring("--max-age=", arg+8); continue; } - if (!prefixcmp(arg, "--before=")) { + if (starts_with(arg, "--before=")) { show_datestring("--min-age=", arg+9); continue; } - if (!prefixcmp(arg, "--until=")) { + if (starts_with(arg, "--until=")) { show_datestring("--min-age=", arg+8); continue; } @@ -768,7 +821,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix) name++; type = REVERSED; } - if (!get_sha1(name, sha1)) { + if (!get_sha1_with_context(name, flags, sha1, &unused)) { if (verify) revs_count++; else diff --git a/builtin/revert.c b/builtin/revert.c index 87659c9fdb..f9ed5bd5d0 100644 --- a/builtin/revert.c +++ b/builtin/revert.c @@ -89,6 +89,8 @@ static void parse_args(int argc, const char **argv, struct replay_opts *opts) 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(), diff --git a/builtin/rm.c b/builtin/rm.c index 3a0e0eaab7..d8a9c86dd1 100644 --- a/builtin/rm.c +++ b/builtin/rm.c @@ -3,8 +3,8 @@ * * Copyright (C) Linus Torvalds 2006 */ -#include "cache.h" #include "builtin.h" +#include "lockfile.h" #include "dir.h" #include "cache-tree.h" #include "tree-walk.h" @@ -65,7 +65,7 @@ static void error_removing_concrete_submodules(struct string_list *files, int *e Q_("the following submodule (or one of its nested " "submodules)\n" "uses a .git directory:", - "the following submodules (or one of its nested " + "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 " @@ -278,7 +278,7 @@ static struct option builtin_rm_options[] = { int cmd_rm(int argc, const char **argv, const char *prefix) { - int i, newfd; + int i; struct pathspec pathspec; char *seen; @@ -293,7 +293,7 @@ int cmd_rm(int argc, const char **argv, const char *prefix) if (!index_only) setup_work_tree(); - newfd = hold_locked_index(&lock_file, 1); + hold_locked_index(&lock_file, 1); if (read_cache() < 0) die(_("index file corrupt")); @@ -308,10 +308,10 @@ int cmd_rm(int argc, const char **argv, const char *prefix) for (i = 0; i < active_nr; i++) { const struct cache_entry *ce = active_cache[i]; - if (!match_pathspec_depth(&pathspec, ce->name, ce_namelen(ce), 0, seen)) + if (!ce_path_match(ce, &pathspec, seen)) continue; ALLOC_GROW(list.entry, list.nr + 1, list.alloc); - list.entry[list.nr].name = ce->name; + list.entry[list.nr].name = xstrdup(ce->name); list.entry[list.nr].is_submodule = S_ISGITLINK(ce->ce_mode); if (list.entry[list.nr++].is_submodule && !is_staging_gitmodules_ok()) @@ -427,8 +427,7 @@ int cmd_rm(int argc, const char **argv, const char *prefix) } if (active_cache_changed) { - if (write_cache(newfd, active_cache, active_nr) || - commit_locked_index(&lock_file)) + if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK)) die(_("Unable to write new index file")); } diff --git a/builtin/send-pack.c b/builtin/send-pack.c index 4482f16efb..b564a77845 100644 --- a/builtin/send-pack.c +++ b/builtin/send-pack.c @@ -10,6 +10,7 @@ #include "quote.h" #include "transport.h" #include "version.h" +#include "sha1-array.h" static const char send_pack_usage[] = "git send-pack [--all | --mirror] [--dry-run] [--force] [--receive-pack=<git-receive-pack>] [--verbose] [--thin] [<host>:]<directory> [<ref>...]\n" @@ -99,7 +100,8 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix) const char *dest = NULL; int fd[2]; struct child_process *conn; - struct extra_have_objects extra_have; + struct sha1_array extra_have = SHA1_ARRAY_INIT; + struct sha1_array shallow = SHA1_ARRAY_INIT; struct ref *remote_refs, *local_refs; int ret; int helper_status = 0; @@ -108,6 +110,7 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix) int flags; unsigned int reject_reasons; int progress = -1; + int from_stdin = 0; struct push_cas_option cas = {0}; argv++; @@ -115,15 +118,15 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix) const char *arg = *argv; if (*arg == '-') { - if (!prefixcmp(arg, "--receive-pack=")) { + if (starts_with(arg, "--receive-pack=")) { receivepack = arg + 15; continue; } - if (!prefixcmp(arg, "--exec=")) { + if (starts_with(arg, "--exec=")) { receivepack = arg + 7; continue; } - if (!prefixcmp(arg, "--remote=")) { + if (starts_with(arg, "--remote=")) { remote_name = arg + 9; continue; } @@ -151,6 +154,10 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix) args.verbose = 1; continue; } + if (!strcmp(arg, "--signed")) { + args.push_cert = 1; + continue; + } if (!strcmp(arg, "--progress")) { progress = 1; continue; @@ -167,6 +174,10 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix) args.stateless_rpc = 1; continue; } + if (!strcmp(arg, "--stdin")) { + from_stdin = 1; + continue; + } if (!strcmp(arg, "--helper-status")) { helper_status = 1; continue; @@ -181,7 +192,7 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix) exit(1); continue; } - if (!prefixcmp(arg, "--" CAS_OPT_NAME "=")) { + if (starts_with(arg, "--" CAS_OPT_NAME "=")) { if (parse_push_cas_option(&cas, strchr(arg, '=') + 1, 0) < 0) exit(1); @@ -199,6 +210,28 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix) } if (!dest) usage(send_pack_usage); + + if (from_stdin) { + struct argv_array all_refspecs = ARGV_ARRAY_INIT; + + for (i = 0; i < nr_refspecs; i++) + argv_array_push(&all_refspecs, refspecs[i]); + + if (args.stateless_rpc) { + const char *buf; + while ((buf = packet_read_line(0, NULL))) + argv_array_push(&all_refspecs, buf); + } else { + struct strbuf line = STRBUF_INIT; + while (strbuf_getline(&line, stdin, '\n') != EOF) + argv_array_push(&all_refspecs, line.buf); + strbuf_release(&line); + } + + refspecs = all_refspecs.argv; + nr_refspecs = all_refspecs.argc; + } + /* * --all and --mirror are incompatible; neither makes sense * with any refspecs. @@ -228,9 +261,8 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix) args.verbose ? CONNECT_VERBOSE : 0); } - memset(&extra_have, 0, sizeof(extra_have)); - - get_remote_heads(fd[0], NULL, 0, &remote_refs, REF_NORMAL, &extra_have); + get_remote_heads(fd[0], NULL, 0, &remote_refs, REF_NORMAL, + &extra_have, &shallow); transport_verify_remote_names(nr_refspecs, refspecs); diff --git a/builtin/shortlog.c b/builtin/shortlog.c index c226f767aa..4b7e53623f 100644 --- a/builtin/shortlog.c +++ b/builtin/shortlog.c @@ -65,7 +65,7 @@ static void insert_one_record(struct shortlog *log, eol = strchr(oneline, '\n'); if (!eol) eol = oneline + strlen(oneline); - if (!prefixcmp(oneline, "[PATCH")) { + if (starts_with(oneline, "[PATCH")) { char *eob = strchr(oneline, ']'); if (eob && (!eol || eob < eol)) oneline = eob + 1; @@ -95,7 +95,7 @@ static void read_from_stdin(struct shortlog *log) while (fgets(author, sizeof(author), stdin) != NULL) { if (!(author[0] == 'A' || author[0] == 'a') || - prefixcmp(author + 1, "uthor: ")) + !starts_with(author + 1, "uthor: ")) continue; while (fgets(oneline, sizeof(oneline), stdin) && oneline[0] != '\n') @@ -123,7 +123,7 @@ void shortlog_add_commit(struct shortlog *log, struct commit *commit) else eol++; - if (!prefixcmp(buffer, "author ")) + if (starts_with(buffer, "author ")) author = buffer + 7; buffer = eol; } diff --git a/builtin/show-branch.c b/builtin/show-branch.c index 001f29ca1b..199b081e9b 100644 --- a/builtin/show-branch.c +++ b/builtin/show-branch.c @@ -227,8 +227,7 @@ static void join_revs(struct commit_list **list_p, parents = parents->next; if ((this_flag & flags) == flags) continue; - if (!p->object.parsed) - parse_commit(p); + parse_commit(p); if (mark_seen(p, seen_p) && !still_interesting) extra--; p->object.flags |= flags; @@ -285,7 +284,7 @@ static void show_one_commit(struct commit *commit, int no_name) pp_commit_easy(CMIT_FMT_ONELINE, commit, &pretty); pretty_str = pretty.buf; } - if (!prefixcmp(pretty_str, "[PATCH] ")) + if (starts_with(pretty_str, "[PATCH] ")) pretty_str += 8; if (!no_name) { @@ -396,7 +395,7 @@ static int append_head_ref(const char *refname, const unsigned char *sha1, int f { unsigned char tmp[20]; int ofs = 11; - if (prefixcmp(refname, "refs/heads/")) + if (!starts_with(refname, "refs/heads/")) return 0; /* If both heads/foo and tags/foo exists, get_sha1 would * get confused. @@ -410,7 +409,7 @@ static int append_remote_ref(const char *refname, const unsigned char *sha1, int { unsigned char tmp[20]; int ofs = 13; - if (prefixcmp(refname, "refs/remotes/")) + if (!starts_with(refname, "refs/remotes/")) return 0; /* If both heads/foo and tags/foo exists, get_sha1 would * get confused. @@ -422,7 +421,7 @@ static int append_remote_ref(const char *refname, const unsigned char *sha1, int static int append_tag_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) { - if (prefixcmp(refname, "refs/tags/")) + if (!starts_with(refname, "refs/tags/")) return 0; return append_ref(refname + 5, sha1, 0); } @@ -451,11 +450,11 @@ static int append_matching_ref(const char *refname, const unsigned char *sha1, i slash--; if (!*tail) return 0; - if (fnmatch(match_ref_pattern, tail, 0)) + if (wildmatch(match_ref_pattern, tail, 0, NULL)) return 0; - if (!prefixcmp(refname, "refs/heads/")) + if (starts_with(refname, "refs/heads/")) return append_head_ref(refname, sha1, flag, cb_data); - if (!prefixcmp(refname, "refs/tags/")) + if (starts_with(refname, "refs/tags/")) return append_tag_ref(refname, sha1, flag, cb_data); return append_ref(refname, sha1, 0); } @@ -480,11 +479,11 @@ static int rev_is_head(char *head, int headlen, char *name, if ((!head[0]) || (head_sha1 && sha1 && hashcmp(head_sha1, sha1))) return 0; - if (!prefixcmp(head, "refs/heads/")) + if (starts_with(head, "refs/heads/")) head += 11; - if (!prefixcmp(name, "refs/heads/")) + if (starts_with(name, "refs/heads/")) name += 11; - else if (!prefixcmp(name, "heads/")) + else if (starts_with(name, "heads/")) name += 6; return !strcmp(head, name); } @@ -564,7 +563,7 @@ static int git_show_branch_config(const char *var, const char *value, void *cb) default_arg[default_num++] = "show-branch"; } else if (default_alloc <= default_num + 1) { default_alloc = default_alloc * 3 / 2 + 20; - default_arg = xrealloc(default_arg, sizeof *default_arg * default_alloc); + REALLOC_ARRAY(default_arg, default_alloc); } default_arg[default_num++] = xstrdup(value); default_arg[default_num] = NULL; @@ -724,6 +723,7 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) char nth_desc[256]; char *ref; int base = 0; + unsigned int flags = 0; if (ac == 0) { static const char *fake_av[2]; @@ -750,18 +750,18 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) /* Ah, that is a date spec... */ unsigned long at; at = approxidate(reflog_base); - read_ref_at(ref, at, -1, sha1, NULL, + read_ref_at(ref, flags, at, -1, sha1, NULL, NULL, NULL, &base); } } for (i = 0; i < reflog; i++) { - char *logmsg, *m; + char *logmsg; const char *msg; unsigned long timestamp; int tz; - if (read_ref_at(ref, 0, base+i, sha1, &logmsg, + if (read_ref_at(ref, flags, 0, base+i, sha1, &logmsg, ×tamp, &tz, NULL)) { reflog = i; break; @@ -771,15 +771,14 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) msg = "(none)"; else msg++; - m = xmalloc(strlen(msg) + 200); - sprintf(m, "(%s) %s", - show_date(timestamp, tz, 1), - msg); - reflog_msg[i] = m; + reflog_msg[i] = xstrfmt("(%s) %s", + show_date(timestamp, tz, 1), + msg); free(logmsg); sprintf(nth_desc, "%s@{%d}", *av, base+i); append_ref(nth_desc, sha1, 1); } + free(ref); } else if (all_heads + all_remotes) snarf_refs(all_heads, all_remotes); @@ -813,7 +812,7 @@ int cmd_show_branch(int ac, const char **av, const char *prefix) has_head++; } if (!has_head) { - int offset = !prefixcmp(head, "refs/heads/") ? 11 : 0; + int offset = starts_with(head, "refs/heads/") ? 11 : 0; append_one_rev(head + offset); } } diff --git a/builtin/show-ref.c b/builtin/show-ref.c index 9f3f5e370b..5ba1f30838 100644 --- a/builtin/show-ref.c +++ b/builtin/show-ref.c @@ -37,8 +37,8 @@ static int show_ref(const char *refname, const unsigned char *sha1, int flag, vo if (tags_only || heads_only) { int match; - match = heads_only && !prefixcmp(refname, "refs/heads/"); - match |= tags_only && !prefixcmp(refname, "refs/tags/"); + match = heads_only && starts_with(refname, "refs/heads/"); + match |= tags_only && starts_with(refname, "refs/tags/"); if (!match) return 0; } @@ -210,7 +210,7 @@ int cmd_show_ref(int argc, const char **argv, const char *prefix) while (*pattern) { unsigned char sha1[20]; - if (!prefixcmp(*pattern, "refs/") && + if (starts_with(*pattern, "refs/") && !read_ref(*pattern, sha1)) { if (!quiet) show_one(*pattern, sha1); diff --git a/builtin/symbolic-ref.c b/builtin/symbolic-ref.c index 71286b4fae..b6a711d319 100644 --- a/builtin/symbolic-ref.c +++ b/builtin/symbolic-ref.c @@ -65,7 +65,7 @@ int cmd_symbolic_ref(int argc, const char **argv, const char *prefix) break; case 2: if (!strcmp(argv[0], "HEAD") && - prefixcmp(argv[1], "refs/")) + !starts_with(argv[1], "refs/")) die("Refusing to point HEAD outside of refs/"); create_symref(argv[0], argv[1], msg); break; diff --git a/builtin/tag.c b/builtin/tag.c index ea55f1d1bd..a81b9e4174 100644 --- a/builtin/tag.c +++ b/builtin/tag.c @@ -27,9 +27,18 @@ static const char * const git_tag_usage[] = { 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; }; @@ -42,7 +51,7 @@ static int match_pattern(const char **patterns, const char *ref) if (!*patterns) return 1; for (; *patterns; patterns++) - if (!fnmatch(*patterns, ref, 0)) + if (!wildmatch(*patterns, ref, 0, NULL)) return 1; return 0; } @@ -73,11 +82,19 @@ static int in_commit_list(const struct commit_list *want, struct commit *c) return 0; } -static int contains_recurse(struct commit *candidate, +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) { - struct commit_list *p; - /* was it previously marked as containing a want commit? */ if (candidate->object.flags & TMP_MARK) return 1; @@ -85,26 +102,78 @@ static int contains_recurse(struct commit *candidate, if (candidate->object.flags & UNINTERESTING) return 0; /* or are we it? */ - if (in_commit_list(want, candidate)) + if (in_commit_list(want, candidate)) { + candidate->object.flags |= TMP_MARK; return 1; + } if (parse_commit(candidate) < 0) return 0; - /* Otherwise recurse and mark ourselves for future traversals. */ - for (p = candidate->parents; p; p = p->next) { - if (contains_recurse(p->item, want)) { - candidate->object.flags |= TMP_MARK; - return 1; - } - } - candidate->object.flags |= UNINTERESTING; - return 0; + 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 int contains(struct commit *candidate, const struct commit_list *want) +static enum contains_result contains(struct commit *candidate, + const struct commit_list *want) { - return contains_recurse(candidate, 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) @@ -166,7 +235,10 @@ static int show_reference(const char *refname, const unsigned char *sha1, return 0; if (!filter->lines) { - printf("%s\n", refname); + if (filter->sort) + string_list_append(&filter->tags, refname); + else + printf("%s\n", refname); return 0; } printf("%-15s ", refname); @@ -177,17 +249,39 @@ static int show_reference(const char *refname, const unsigned char *sha1, return 0; } +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); +} + static int list_tags(const char **patterns, int lines, - struct commit_list *with_commit) + 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; } @@ -246,20 +340,62 @@ static int do_sign(struct strbuf *buffer) } static const char tag_template[] = - N_("\nWrite a tag message\n" + N_("\nWrite a message for tag:\n %s\n" "Lines starting with '%c' will be ignored.\n"); static const char tag_template_nocleanup[] = - N_("\nWrite a tag message\n" + N_("\nWrite a message for tag:\n %s\n" "Lines starting with '%c' will be kept; you may remove them" " yourself if you want to.\n"); +/* + * Parse 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) +{ + int type = 0, flags = 0; + + 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; + + 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; + } + } + + *sort = (type | flags); + + return 0; +} + static int git_tag_config(const char *var, const char *value, void *cb) { - int status = git_gpg_config(var, value, cb); + int status; + + if (!strcmp(var, "tag.sort")) { + if (!value) + return config_error_nonbool(var); + parse_sort_string(var, value, &tag_sort); + return 0; + } + + status = git_gpg_config(var, value, cb); if (status) return status; - if (!prefixcmp(var, "column.")) + if (starts_with(var, "column.")) return git_column_config(var, value, "tag", &colopts); return git_default_config(var, value, cb); } @@ -346,9 +482,9 @@ static void create_tag(const unsigned char *object, const char *tag, struct strbuf buf = STRBUF_INIT; strbuf_addch(&buf, '\n'); if (opt->cleanup_mode == CLEANUP_ALL) - strbuf_commented_addf(&buf, _(tag_template), comment_line_char); + strbuf_commented_addf(&buf, _(tag_template), tag, comment_line_char); else - strbuf_commented_addf(&buf, _(tag_template_nocleanup), comment_line_char); + strbuf_commented_addf(&buf, _(tag_template_nocleanup), tag, comment_line_char); write_or_die(fd, buf.buf, buf.len); strbuf_release(&buf); } @@ -427,13 +563,19 @@ static int parse_opt_points_at(const struct option *opt __attribute__((unused)), 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]; const char *object_ref, *tag; - struct ref_lock *lock; struct create_tag_options opt; char *cleanup_arg = NULL; int annotate = 0, force = 0, lines = -1; @@ -441,6 +583,8 @@ int cmd_tag(int argc, const char **argv, const char *prefix) 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 option options[] = { OPT_CMDMODE('l', "list", &cmdmode, N_("list tag names"), 'l'), { OPTION_INTEGER, 'n', NULL, &lines, N_("n"), @@ -458,10 +602,14 @@ int cmd_tag(int argc, const char **argv, const char *prefix) OPT_BOOL('s', "sign", &opt.sign, N_("annotated and GPG-signed tag")), OPT_STRING(0, "cleanup", &cleanup_arg, N_("mode"), N_("how to strip spaces and #comments from message")), - OPT_STRING('u', "local-user", &keyid, N_("key id"), + 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_COLUMN(0, "column", &colopts, N_("show tag list in columns")), + { + OPTION_CALLBACK, 0, "sort", &tag_sort, N_("type"), N_("sort tags"), + PARSE_OPT_NONEG, parse_opt_sort + }, OPT_GROUP(N_("Tag listing options")), { @@ -471,6 +619,12 @@ int cmd_tag(int argc, const char **argv, const char *prefix) 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 }, @@ -509,7 +663,9 @@ int cmd_tag(int argc, const char **argv, const char *prefix) copts.padding = 2; run_column_filter(colopts, &copts); } - ret = list_tags(argv, lines == -1 ? 0 : lines, with_commit); + if (lines != -1 && tag_sort) + die(_("--sort and -n are incompatible")); + ret = list_tags(argv, lines == -1 ? 0 : lines, with_commit, tag_sort); if (column_active(colopts)) stop_column_filter(); return ret; @@ -574,14 +730,17 @@ int cmd_tag(int argc, const char **argv, const char *prefix) if (annotate) create_tag(object, tag, &buf, &opt, prev, object); - lock = lock_any_ref_for_update(ref.buf, prev, 0, NULL); - if (!lock) - die(_("%s: cannot lock the ref"), ref.buf); - if (write_ref_sha1(lock, object, NULL) < 0) - die(_("%s: cannot update the ref"), ref.buf); + transaction = ref_transaction_begin(&err); + if (!transaction || + ref_transaction_update(transaction, ref.buf, object, prev, + 0, 1, &err) || + ref_transaction_commit(transaction, NULL, &err)) + die("%s", err.buf); + ref_transaction_free(transaction); if (force && !is_null_sha1(prev) && hashcmp(prev, object)) printf(_("Updated tag '%s' (was %s)\n"), tag, find_unique_abbrev(prev, DEFAULT_ABBREV)); + strbuf_release(&err); strbuf_release(&buf); strbuf_release(&ref); return 0; diff --git a/builtin/tar-tree.c b/builtin/tar-tree.c deleted file mode 100644 index ba3ffe69a9..0000000000 --- a/builtin/tar-tree.c +++ /dev/null @@ -1,102 +0,0 @@ -/* - * Copyright (c) 2005, 2006 Rene Scharfe - */ -#include "cache.h" -#include "commit.h" -#include "tar.h" -#include "builtin.h" -#include "quote.h" - -static const char tar_tree_usage[] = -"git tar-tree [--remote=<repo>] <tree-ish> [basedir]\n" -"*** Note that this command is now deprecated; use \"git archive\" instead."; - -static const char builtin_get_tar_commit_id_usage[] = -"git get-tar-commit-id < <tarfile>"; - -int cmd_tar_tree(int argc, const char **argv, const char *prefix) -{ - /* - * "git tar-tree" is now a wrapper around "git archive --format=tar" - * - * $0 --remote=<repo> arg... ==> - * git archive --format=tar --remote=<repo> arg... - * $0 tree-ish ==> - * git archive --format=tar tree-ish - * $0 tree-ish basedir ==> - * git archive --format-tar --prefix=basedir tree-ish - */ - const char **nargv = xcalloc(sizeof(*nargv), argc + 3); - struct strbuf sb = STRBUF_INIT; - char *basedir_arg; - int nargc = 0; - - nargv[nargc++] = "archive"; - nargv[nargc++] = "--format=tar"; - - if (2 <= argc && !prefixcmp(argv[1], "--remote=")) { - nargv[nargc++] = argv[1]; - argv++; - argc--; - } - - /* - * Because it's just a compatibility wrapper, tar-tree supports only - * the old behaviour of reading attributes from the work tree. - */ - nargv[nargc++] = "--worktree-attributes"; - - switch (argc) { - default: - usage(tar_tree_usage); - break; - case 3: - /* base-path */ - basedir_arg = xmalloc(strlen(argv[2]) + 11); - sprintf(basedir_arg, "--prefix=%s/", argv[2]); - nargv[nargc++] = basedir_arg; - /* fallthru */ - case 2: - /* tree-ish */ - nargv[nargc++] = argv[1]; - } - nargv[nargc] = NULL; - - fprintf(stderr, - "*** \"git tar-tree\" is now deprecated.\n" - "*** Running \"git archive\" instead.\n***"); - sq_quote_argv(&sb, nargv, 0); - strbuf_addch(&sb, '\n'); - fputs(sb.buf, stderr); - strbuf_release(&sb); - return cmd_archive(nargc, nargv, prefix); -} - -/* ustar header + extended global header content */ -#define RECORDSIZE (512) -#define HEADERSIZE (2 * RECORDSIZE) - -int cmd_get_tar_commit_id(int argc, const char **argv, const char *prefix) -{ - char buffer[HEADERSIZE]; - struct ustar_header *header = (struct ustar_header *)buffer; - char *content = buffer + RECORDSIZE; - ssize_t n; - - if (argc != 1) - usage(builtin_get_tar_commit_id_usage); - - n = read_in_full(0, buffer, HEADERSIZE); - if (n < HEADERSIZE) - die("git get-tar-commit-id: read error"); - if (header->typeflag[0] != 'g') - return 1; - if (memcmp(content, "52 comment=", 11)) - return 1; - - n = write_in_full(1, content + 11, 41); - if (n < 41) - die_errno("git get-tar-commit-id: write error"); - - return 0; -} diff --git a/builtin/unpack-objects.c b/builtin/unpack-objects.c index 2217d7b3ae..855d94b90b 100644 --- a/builtin/unpack-objects.c +++ b/builtin/unpack-objects.c @@ -164,10 +164,10 @@ static unsigned nr_objects; * Called only from check_object() after it verified this object * is Ok. */ -static void write_cached_object(struct object *obj) +static void write_cached_object(struct object *obj, struct obj_buffer *obj_buf) { unsigned char sha1[20]; - struct obj_buffer *obj_buf = lookup_object_buffer(obj); + if (write_sha1_file(obj_buf->buffer, obj_buf->size, typename(obj->type), sha1) < 0) die("failed to write object %s", sha1_to_hex(obj->sha1)); obj->flags |= FLAG_WRITTEN; @@ -180,6 +180,8 @@ static void write_cached_object(struct object *obj) */ static int check_object(struct object *obj, int type, void *data) { + struct obj_buffer *obj_buf; + if (!obj) return 1; @@ -198,11 +200,15 @@ static int check_object(struct object *obj, int type, void *data) return 0; } - if (fsck_object(obj, 1, fsck_error_function)) + obj_buf = lookup_object_buffer(obj); + if (!obj_buf) + die("Whoops! Cannot find object '%s'", sha1_to_hex(obj->sha1)); + if (fsck_object(obj, obj_buf->buffer, obj_buf->size, 1, + fsck_error_function)) die("Error in object"); if (fsck_walk(obj, check_object, NULL)) die("Error on reachable objects of %s", sha1_to_hex(obj->sha1)); - write_cached_object(obj); + write_cached_object(obj, obj_buf); return 0; } @@ -480,7 +486,7 @@ static void unpack_all(void) use(sizeof(struct pack_header)); if (!quiet) - progress = start_progress("Unpacking objects", nr_objects); + progress = start_progress(_("Unpacking objects"), nr_objects); obj_list = xcalloc(nr_objects, sizeof(*obj_list)); for (i = 0; i < nr_objects; i++) { unpack_one(i); @@ -497,7 +503,7 @@ int cmd_unpack_objects(int argc, const char **argv, const char *prefix) int i; unsigned char sha1[20]; - read_replace_refs = 0; + check_replace_refs = 0; git_config(git_default_config, NULL); @@ -523,7 +529,7 @@ int cmd_unpack_objects(int argc, const char **argv, const char *prefix) strict = 1; continue; } - if (!prefixcmp(arg, "--pack_header=")) { + if (starts_with(arg, "--pack_header=")) { struct pack_header *hdr; char *c; diff --git a/builtin/update-index.c b/builtin/update-index.c index e3a10d706d..b0e3dc9105 100644 --- a/builtin/update-index.c +++ b/builtin/update-index.c @@ -4,6 +4,7 @@ * Copyright (C) Linus Torvalds, 2005 */ #include "cache.h" +#include "lockfile.h" #include "quote.h" #include "cache-tree.h" #include "tree-walk.h" @@ -12,6 +13,8 @@ #include "resolve-undo.h" #include "parse-options.h" #include "pathspec.h" +#include "dir.h" +#include "split-index.h" /* * Default to not allowing changes to the list of files. The @@ -54,8 +57,9 @@ static int mark_ce_flags(const char *path, int flag, int mark) active_cache[pos]->ce_flags |= flag; else active_cache[pos]->ce_flags &= ~flag; - cache_tree_invalidate_path(active_cache_tree, path); - active_cache_changed = 1; + active_cache[pos]->ce_flags |= CE_UPDATE_IN_BASE; + cache_tree_invalidate_path(&the_index, path); + active_cache_changed |= CE_ENTRY_CHANGED; return 0; } return -1; @@ -266,44 +270,41 @@ static void chmod_path(int flip, const char *path) default: goto fail; } - cache_tree_invalidate_path(active_cache_tree, path); - active_cache_changed = 1; + cache_tree_invalidate_path(&the_index, path); + ce->ce_flags |= CE_UPDATE_IN_BASE; + active_cache_changed |= CE_ENTRY_CHANGED; report("chmod %cx '%s'", flip, path); return; fail: die("git update-index: cannot chmod %cx '%s'", flip, path); } -static void update_one(const char *path, const char *prefix, int prefix_length) +static void update_one(const char *path) { - const char *p = prefix_path(prefix, prefix_length, path); - if (!verify_path(p)) { + if (!verify_path(path)) { fprintf(stderr, "Ignoring path %s\n", path); - goto free_return; + return; } if (mark_valid_only) { - if (mark_ce_flags(p, CE_VALID, mark_valid_only == MARK_FLAG)) + if (mark_ce_flags(path, CE_VALID, mark_valid_only == MARK_FLAG)) die("Unable to mark file %s", path); - goto free_return; + return; } if (mark_skip_worktree_only) { - if (mark_ce_flags(p, CE_SKIP_WORKTREE, mark_skip_worktree_only == MARK_FLAG)) + if (mark_ce_flags(path, CE_SKIP_WORKTREE, mark_skip_worktree_only == MARK_FLAG)) die("Unable to mark file %s", path); - goto free_return; + return; } if (force_remove) { - if (remove_file_from_cache(p)) + if (remove_file_from_cache(path)) die("git update-index: unable to remove %s", path); report("remove '%s'", path); - goto free_return; + return; } - if (process_path(p)) + if (process_path(path)) die("Unable to process path %s", path); report("add '%s'", path); - free_return: - if (p < path || p > path + strlen(path)) - free((char *)p); } static void read_index_info(int line_termination) @@ -563,8 +564,9 @@ static int do_reupdate(int ac, const char **av, const struct cache_entry *ce = active_cache[pos]; struct cache_entry *old = NULL; int save_nr; + char *path; - if (ce_stage(ce) || !ce_path_match(ce, &pathspec)) + if (ce_stage(ce) || !ce_path_match(ce, &pathspec, NULL)) continue; if (has_head) old = read_one_ent(NULL, head_sha1, @@ -579,7 +581,9 @@ static int do_reupdate(int ac, const char **av, * or worse yet 'allow_replace', active_nr may decrease. */ save_nr = active_nr; - update_one(ce->name + prefix_length, prefix, prefix_length); + path = xstrdup(ce->name); + update_one(path); + free(path); if (save_nr != active_nr) goto redo; } @@ -629,14 +633,45 @@ static int resolve_undo_clear_callback(const struct option *opt, return 0; } +static int parse_new_style_cacheinfo(const char *arg, + unsigned int *mode, + unsigned char sha1[], + const char **path) +{ + unsigned long ul; + char *endp; + + if (!arg) + return -1; + + errno = 0; + ul = strtoul(arg, &endp, 8); + if (errno || endp == arg || *endp != ',' || (unsigned int) ul != ul) + return -1; /* not a new-style cacheinfo */ + *mode = ul; + endp++; + if (get_sha1_hex(endp, sha1) || endp[40] != ',') + return -1; + *path = endp + 41; + return 0; +} + static int cacheinfo_callback(struct parse_opt_ctx_t *ctx, const struct option *opt, int unset) { unsigned char sha1[20]; unsigned int mode; + const char *path; + if (!parse_new_style_cacheinfo(ctx->argv[1], &mode, sha1, &path)) { + if (add_cacheinfo(mode, sha1, path, 0)) + die("git update-index: --cacheinfo cannot add %s", path); + ctx->argv++; + ctx->argc--; + return 0; + } if (ctx->argc <= 3) - return error("option 'cacheinfo' expects three arguments"); + return error("option 'cacheinfo' expects <mode>,<sha1>,<path>"); if (strtoul_ui(*++ctx->argv, 8, &mode) || get_sha1_hex(*++ctx->argv, sha1) || add_cacheinfo(mode, sha1, *++ctx->argv, 0)) @@ -712,6 +747,7 @@ int cmd_update_index(int argc, const char **argv, const char *prefix) char set_executable_bit = 0; struct refresh_params refresh_args = {0, &has_errors}; int lock_error = 0; + int split_index = -1; struct lock_file *lock_file; struct parse_opt_ctx_t ctx; int parseopt_state = PARSE_OPT_UNKNOWN; @@ -740,9 +776,9 @@ int cmd_update_index(int argc, const char **argv, const char *prefix) PARSE_OPT_NOARG | PARSE_OPT_NONEG, really_refresh_callback}, {OPTION_LOWLEVEL_CALLBACK, 0, "cacheinfo", NULL, - N_("<mode> <object> <path>"), + N_("<mode>,<object>,<path>"), N_("add the specified entry to the index"), - PARSE_OPT_NOARG | /* disallow --cacheinfo=<mode> form */ + PARSE_OPT_NOARG | /* disallow --cacheinfo=<mode> form */ PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP, (parse_opt_cb *) cacheinfo_callback}, {OPTION_CALLBACK, 0, "chmod", &set_executable_bit, N_("(+/-)x"), @@ -794,6 +830,8 @@ int cmd_update_index(int argc, const char **argv, const char *prefix) resolve_undo_clear_callback}, OPT_INTEGER(0, "index-version", &preferred_index_format, N_("write index in this format")), + OPT_BOOL(0, "split-index", &split_index, + N_("enable or disable split index")), OPT_END() }; @@ -836,11 +874,10 @@ int cmd_update_index(int argc, const char **argv, const char *prefix) setup_work_tree(); p = prefix_path(prefix, prefix_length, path); - update_one(p, NULL, 0); + update_one(p); if (set_executable_bit) chmod_path(set_executable_bit, p); - if (p < path || p > path + strlen(path)) - free((char *)p); + free((char *)p); ctx.argc--; ctx.argv++; break; @@ -862,7 +899,7 @@ int cmd_update_index(int argc, const char **argv, const char *prefix) INDEX_FORMAT_LB, INDEX_FORMAT_UB); if (the_index.version != preferred_index_format) - active_cache_changed = 1; + active_cache_changed |= SOMETHING_CHANGED; the_index.version = preferred_index_format; } @@ -879,24 +916,36 @@ int cmd_update_index(int argc, const char **argv, const char *prefix) strbuf_swap(&buf, &nbuf); } p = prefix_path(prefix, prefix_length, buf.buf); - update_one(p, NULL, 0); + update_one(p); if (set_executable_bit) chmod_path(set_executable_bit, p); - if (p < buf.buf || p > buf.buf + buf.len) - free((char *)p); + free((char *)p); } strbuf_release(&nbuf); 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 (active_cache_changed) { if (newfd < 0) { if (refresh_args.flags & REFRESH_QUIET) exit(128); - unable_to_lock_index_die(get_index_file(), lock_error); + unable_to_lock_die(get_index_file(), lock_error); } - if (write_cache(newfd, active_cache, active_nr) || - commit_locked_index(lock_file)) + if (write_locked_index(&the_index, lock_file, COMMIT_LOCK)) die("Unable to write new index file"); } diff --git a/builtin/update-ref.c b/builtin/update-ref.c index 702e90db2a..54a48c0cfa 100644 --- a/builtin/update-ref.c +++ b/builtin/update-ref.c @@ -12,237 +12,344 @@ static const char * const git_update_ref_usage[] = { NULL }; -static int updates_alloc; -static int updates_count; -static const struct ref_update **updates; - static char line_termination = '\n'; static int update_flags; -static struct ref_update *update_alloc(void) -{ - struct ref_update *update; - - /* Allocate and zero-init a struct ref_update */ - update = xcalloc(1, sizeof(*update)); - ALLOC_GROW(updates, updates_count + 1, updates_alloc); - updates[updates_count++] = update; - - /* Store and reset accumulated options */ - update->flags = update_flags; - update_flags = 0; - - return update; -} - -static void update_store_ref_name(struct ref_update *update, - const char *ref_name) -{ - if (check_refname_format(ref_name, REFNAME_ALLOW_ONELEVEL)) - die("invalid ref format: %s", ref_name); - update->ref_name = xstrdup(ref_name); -} - -static void update_store_new_sha1(struct ref_update *update, - const char *newvalue) -{ - if (*newvalue && get_sha1(newvalue, update->new_sha1)) - die("invalid new value for ref %s: %s", - update->ref_name, newvalue); -} - -static void update_store_old_sha1(struct ref_update *update, - const char *oldvalue) -{ - if (*oldvalue && get_sha1(oldvalue, update->old_sha1)) - die("invalid old value for ref %s: %s", - update->ref_name, oldvalue); - - /* We have an old value if non-empty, or if empty without -z */ - update->have_old = *oldvalue || line_termination; -} - +/* + * Parse one whitespace- or NUL-terminated, possibly C-quoted argument + * and append the result to arg. Return a pointer to the terminator. + * Die if there is an error in how the argument is C-quoted. This + * function is only used if not -z. + */ static const char *parse_arg(const char *next, struct strbuf *arg) { - /* Parse SP-terminated, possibly C-quoted argument */ - if (*next != '"') + if (*next == '"') { + const char *orig = next; + + if (unquote_c_style(arg, next, &next)) + die("badly quoted argument: %s", orig); + if (*next && !isspace(*next)) + die("unexpected character after quoted argument: %s", orig); + } else { while (*next && !isspace(*next)) strbuf_addch(arg, *next++); - else if (unquote_c_style(arg, next, &next)) - die("badly quoted argument: %s", next); + } - /* Return position after the argument */ return next; } -static const char *parse_first_arg(const char *next, struct strbuf *arg) +/* + * Parse the reference name immediately after "command SP". If not + * -z, then handle C-quoting. Return a pointer to a newly allocated + * string containing the name of the reference, or NULL if there was + * an error. Update *next to point at the character that terminates + * the argument. Die if C-quoting is malformed or the reference name + * is invalid. + */ +static char *parse_refname(struct strbuf *input, const char **next) { - /* Parse argument immediately after "command SP" */ - strbuf_reset(arg); + struct strbuf ref = STRBUF_INIT; + if (line_termination) { /* Without -z, use the next argument */ - next = parse_arg(next, arg); + *next = parse_arg(*next, &ref); } else { - /* With -z, use rest of first NUL-terminated line */ - strbuf_addstr(arg, next); - next = next + arg->len; + /* With -z, use everything up to the next NUL */ + strbuf_addstr(&ref, *next); + *next += ref.len; } - return next; + + if (!ref.len) { + strbuf_release(&ref); + return NULL; + } + + if (check_refname_format(ref.buf, REFNAME_ALLOW_ONELEVEL)) + die("invalid ref format: %s", ref.buf); + + return strbuf_detach(&ref, NULL); } -static const char *parse_next_arg(const char *next, struct strbuf *arg) +/* + * The value being parsed is <oldvalue> (as opposed to <newvalue>; the + * difference affects which error messages are generated): + */ +#define PARSE_SHA1_OLD 0x01 + +/* + * For backwards compatibility, accept an empty string for update's + * <newvalue> in binary mode to be equivalent to specifying zeros. + */ +#define PARSE_SHA1_ALLOW_EMPTY 0x02 + +/* + * Parse an argument separator followed by the next argument, if any. + * If there is an argument, convert it to a SHA-1, write it to sha1, + * set *next to point at the character terminating the argument, and + * return 0. If there is no argument at all (not even the empty + * string), return 1 and leave *next unchanged. If the value is + * provided but cannot be converted to a SHA-1, die. flags can + * include PARSE_SHA1_OLD and/or PARSE_SHA1_ALLOW_EMPTY. + */ +static int parse_next_sha1(struct strbuf *input, const char **next, + unsigned char *sha1, + const char *command, const char *refname, + int flags) { - /* Parse next SP-terminated or NUL-terminated argument, if any */ - strbuf_reset(arg); + struct strbuf arg = STRBUF_INIT; + int ret = 0; + + if (*next == input->buf + input->len) + goto eof; + if (line_termination) { /* Without -z, consume SP and use next argument */ - if (!*next) - return NULL; - if (*next != ' ') - die("expected SP but got: %s", next); - next = parse_arg(next + 1, arg); + if (!**next || **next == line_termination) + return 1; + if (**next != ' ') + die("%s %s: expected SP but got: %s", + command, refname, *next); + (*next)++; + *next = parse_arg(*next, &arg); + if (arg.len) { + if (get_sha1(arg.buf, sha1)) + goto invalid; + } else { + /* Without -z, an empty value means all zeros: */ + hashclr(sha1); + } } else { /* With -z, read the next NUL-terminated line */ - if (*next) - die("expected NUL but got: %s", next); - if (strbuf_getline(arg, stdin, '\0') == EOF) - return NULL; - next = arg->buf + arg->len; + if (**next) + die("%s %s: expected NUL but got: %s", + command, refname, *next); + (*next)++; + if (*next == input->buf + input->len) + goto eof; + strbuf_addstr(&arg, *next); + *next += arg.len; + + if (arg.len) { + if (get_sha1(arg.buf, sha1)) + goto invalid; + } else if (flags & PARSE_SHA1_ALLOW_EMPTY) { + /* With -z, treat an empty value as all zeros: */ + warning("%s %s: missing <newvalue>, treating as zero", + command, refname); + hashclr(sha1); + } else { + /* + * With -z, an empty non-required value means + * unspecified: + */ + ret = 1; + } } - return next; + + strbuf_release(&arg); + + return ret; + + invalid: + die(flags & PARSE_SHA1_OLD ? + "%s %s: invalid <oldvalue>: %s" : + "%s %s: invalid <newvalue>: %s", + command, refname, arg.buf); + + eof: + die(flags & PARSE_SHA1_OLD ? + "%s %s: unexpected end of input when reading <oldvalue>" : + "%s %s: unexpected end of input when reading <newvalue>", + command, refname); } -static void parse_cmd_update(const char *next) + +/* + * The following five parse_cmd_*() functions parse the corresponding + * command. In each case, next points at the character following the + * command name and the following space. They each return a pointer + * to the character terminating the command, and die with an + * explanatory message if there are any parsing problems. All of + * these functions handle either text or binary format input, + * depending on how line_termination is set. + */ + +static const char *parse_cmd_update(struct ref_transaction *transaction, + struct strbuf *input, const char *next) { - struct strbuf ref = STRBUF_INIT; - struct strbuf newvalue = STRBUF_INIT; - struct strbuf oldvalue = STRBUF_INIT; - struct ref_update *update; + struct strbuf err = STRBUF_INIT; + char *refname; + unsigned char new_sha1[20]; + unsigned char old_sha1[20]; + int have_old; - update = update_alloc(); + refname = parse_refname(input, &next); + if (!refname) + die("update: missing <ref>"); - if ((next = parse_first_arg(next, &ref)) != NULL && ref.buf[0]) - update_store_ref_name(update, ref.buf); - else - die("update line missing <ref>"); + if (parse_next_sha1(input, &next, new_sha1, "update", refname, + PARSE_SHA1_ALLOW_EMPTY)) + die("update %s: missing <newvalue>", refname); - if ((next = parse_next_arg(next, &newvalue)) != NULL) - update_store_new_sha1(update, newvalue.buf); - else - die("update %s missing <newvalue>", ref.buf); + have_old = !parse_next_sha1(input, &next, old_sha1, "update", refname, + PARSE_SHA1_OLD); + + if (*next != line_termination) + die("update %s: extra input: %s", refname, next); - if ((next = parse_next_arg(next, &oldvalue)) != NULL) - update_store_old_sha1(update, oldvalue.buf); - else if(!line_termination) - die("update %s missing [<oldvalue>] NUL", ref.buf); + if (ref_transaction_update(transaction, refname, new_sha1, old_sha1, + update_flags, have_old, &err)) + die("%s", err.buf); + + update_flags = 0; + free(refname); + strbuf_release(&err); - if (next && *next) - die("update %s has extra input: %s", ref.buf, next); + return next; } -static void parse_cmd_create(const char *next) +static const char *parse_cmd_create(struct ref_transaction *transaction, + struct strbuf *input, const char *next) { - struct strbuf ref = STRBUF_INIT; - struct strbuf newvalue = STRBUF_INIT; - struct ref_update *update; + struct strbuf err = STRBUF_INIT; + char *refname; + unsigned char new_sha1[20]; - update = update_alloc(); + refname = parse_refname(input, &next); + if (!refname) + die("create: missing <ref>"); - if ((next = parse_first_arg(next, &ref)) != NULL && ref.buf[0]) - update_store_ref_name(update, ref.buf); - else - die("create line missing <ref>"); + if (parse_next_sha1(input, &next, new_sha1, "create", refname, 0)) + die("create %s: missing <newvalue>", refname); - if ((next = parse_next_arg(next, &newvalue)) != NULL) - update_store_new_sha1(update, newvalue.buf); - else - die("create %s missing <newvalue>", ref.buf); - if (is_null_sha1(update->new_sha1)) - die("create %s given zero new value", ref.buf); + if (is_null_sha1(new_sha1)) + die("create %s: zero <newvalue>", refname); + + if (*next != line_termination) + die("create %s: extra input: %s", refname, next); + + if (ref_transaction_create(transaction, refname, new_sha1, + update_flags, &err)) + die("%s", err.buf); + + update_flags = 0; + free(refname); + strbuf_release(&err); - if (next && *next) - die("create %s has extra input: %s", ref.buf, next); + return next; } -static void parse_cmd_delete(const char *next) +static const char *parse_cmd_delete(struct ref_transaction *transaction, + struct strbuf *input, const char *next) { - struct strbuf ref = STRBUF_INIT; - struct strbuf oldvalue = STRBUF_INIT; - struct ref_update *update; + struct strbuf err = STRBUF_INIT; + char *refname; + unsigned char old_sha1[20]; + int have_old; + + refname = parse_refname(input, &next); + if (!refname) + die("delete: missing <ref>"); + + if (parse_next_sha1(input, &next, old_sha1, "delete", refname, + PARSE_SHA1_OLD)) { + have_old = 0; + } else { + if (is_null_sha1(old_sha1)) + die("delete %s: zero <oldvalue>", refname); + have_old = 1; + } - update = update_alloc(); + if (*next != line_termination) + die("delete %s: extra input: %s", refname, next); - if ((next = parse_first_arg(next, &ref)) != NULL && ref.buf[0]) - update_store_ref_name(update, ref.buf); - else - die("delete line missing <ref>"); + if (ref_transaction_delete(transaction, refname, old_sha1, + update_flags, have_old, &err)) + die("%s", err.buf); - if ((next = parse_next_arg(next, &oldvalue)) != NULL) - update_store_old_sha1(update, oldvalue.buf); - else if(!line_termination) - die("delete %s missing [<oldvalue>] NUL", ref.buf); - if (update->have_old && is_null_sha1(update->old_sha1)) - die("delete %s given zero old value", ref.buf); + update_flags = 0; + free(refname); + strbuf_release(&err); - if (next && *next) - die("delete %s has extra input: %s", ref.buf, next); + return next; } -static void parse_cmd_verify(const char *next) +static const char *parse_cmd_verify(struct ref_transaction *transaction, + struct strbuf *input, const char *next) { - struct strbuf ref = STRBUF_INIT; - struct strbuf value = STRBUF_INIT; - struct ref_update *update; + struct strbuf err = STRBUF_INIT; + char *refname; + unsigned char new_sha1[20]; + unsigned char old_sha1[20]; + int have_old; + + refname = parse_refname(input, &next); + if (!refname) + die("verify: missing <ref>"); + + if (parse_next_sha1(input, &next, old_sha1, "verify", refname, + PARSE_SHA1_OLD)) { + hashclr(new_sha1); + have_old = 0; + } else { + hashcpy(new_sha1, old_sha1); + have_old = 1; + } - update = update_alloc(); + if (*next != line_termination) + die("verify %s: extra input: %s", refname, next); - if ((next = parse_first_arg(next, &ref)) != NULL && ref.buf[0]) - update_store_ref_name(update, ref.buf); - else - die("verify line missing <ref>"); + if (ref_transaction_update(transaction, refname, new_sha1, old_sha1, + update_flags, have_old, &err)) + die("%s", err.buf); - if ((next = parse_next_arg(next, &value)) != NULL) { - update_store_old_sha1(update, value.buf); - update_store_new_sha1(update, value.buf); - } else if(!line_termination) - die("verify %s missing [<oldvalue>] NUL", ref.buf); + update_flags = 0; + free(refname); + strbuf_release(&err); - if (next && *next) - die("verify %s has extra input: %s", ref.buf, next); + return next; } -static void parse_cmd_option(const char *next) +static const char *parse_cmd_option(struct strbuf *input, const char *next) { - if (!strcmp(next, "no-deref")) + if (!strncmp(next, "no-deref", 8) && next[8] == line_termination) update_flags |= REF_NODEREF; else die("option unknown: %s", next); + return next + 8; } -static void update_refs_stdin(void) +static void update_refs_stdin(struct ref_transaction *transaction) { - struct strbuf cmd = STRBUF_INIT; + struct strbuf input = STRBUF_INIT; + const char *next; + if (strbuf_read(&input, 0, 1000) < 0) + die_errno("could not read from stdin"); + next = input.buf; /* Read each line dispatch its command */ - while (strbuf_getline(&cmd, stdin, line_termination) != EOF) - if (!cmd.buf[0]) + while (next < input.buf + input.len) { + if (*next == line_termination) die("empty command in input"); - else if (isspace(*cmd.buf)) - die("whitespace before command: %s", cmd.buf); - else if (!prefixcmp(cmd.buf, "update ")) - parse_cmd_update(cmd.buf + 7); - else if (!prefixcmp(cmd.buf, "create ")) - parse_cmd_create(cmd.buf + 7); - else if (!prefixcmp(cmd.buf, "delete ")) - parse_cmd_delete(cmd.buf + 7); - else if (!prefixcmp(cmd.buf, "verify ")) - parse_cmd_verify(cmd.buf + 7); - else if (!prefixcmp(cmd.buf, "option ")) - parse_cmd_option(cmd.buf + 7); + else if (isspace(*next)) + die("whitespace before command: %s", next); + else if (starts_with(next, "update ")) + next = parse_cmd_update(transaction, &input, next + 7); + else if (starts_with(next, "create ")) + next = parse_cmd_create(transaction, &input, next + 7); + else if (starts_with(next, "delete ")) + next = parse_cmd_delete(transaction, &input, next + 7); + else if (starts_with(next, "verify ")) + next = parse_cmd_verify(transaction, &input, next + 7); + else if (starts_with(next, "option ")) + next = parse_cmd_option(&input, next + 7); else - die("unknown command: %s", cmd.buf); + die("unknown command: %s", next); + + next++; + } - strbuf_release(&cmd); + strbuf_release(&input); } int cmd_update_ref(int argc, const char **argv, const char *prefix) @@ -267,12 +374,22 @@ int cmd_update_ref(int argc, const char **argv, const char *prefix) die("Refusing to perform update with empty message."); if (read_stdin) { + struct strbuf err = STRBUF_INIT; + struct ref_transaction *transaction; + + transaction = ref_transaction_begin(&err); + if (!transaction) + die("%s", err.buf); if (delete || no_deref || argc > 0) usage_with_options(git_update_ref_usage, options); if (end_null) line_termination = '\0'; - update_refs_stdin(); - return update_refs(msg, updates, updates_count, DIE_ON_ERR); + update_refs_stdin(transaction); + if (ref_transaction_commit(transaction, msg, &err)) + die("%s", err.buf); + ref_transaction_free(transaction); + strbuf_release(&err); + return 0; } if (end_null) @@ -304,5 +421,5 @@ int cmd_update_ref(int argc, const char **argv, const char *prefix) return delete_ref(refname, oldval ? oldsha1 : NULL, flags); else return update_ref(msg, refname, sha1, oldval ? oldsha1 : NULL, - flags, DIE_ON_ERR); + flags, UPDATE_REFS_DIE_ON_ERR); } diff --git a/builtin/upload-archive.c b/builtin/upload-archive.c index af2da35e7d..32ab94cd06 100644 --- a/builtin/upload-archive.c +++ b/builtin/upload-archive.c @@ -37,7 +37,7 @@ int cmd_upload_archive_writer(int argc, const char **argv, const char *prefix) if (sent_argv.argc > MAX_ARGS) die("Too many options (>%d)", MAX_ARGS - 1); - if (prefixcmp(buf, arg_cmd)) + if (!starts_with(buf, arg_cmd)) die("'argument' token or flush expected"); argv_array_push(&sent_argv, buf + strlen(arg_cmd)); } diff --git a/builtin/verify-commit.c b/builtin/verify-commit.c new file mode 100644 index 0000000000..b0f85042b2 --- /dev/null +++ b/builtin/verify-commit.c @@ -0,0 +1,93 @@ +/* + * Builtin "git commit-commit" + * + * Copyright (c) 2014 Michael J Gruber <git@drmicha.warpmail.net> + * + * Based on git-verify-tag + */ +#include "cache.h" +#include "builtin.h" +#include "commit.h" +#include "run-command.h" +#include <signal.h> +#include "parse-options.h" +#include "gpg-interface.h" + +static const char * const verify_commit_usage[] = { + N_("git verify-commit [-v|--verbose] <commit>..."), + NULL +}; + +static int run_gpg_verify(const unsigned char *sha1, const char *buf, unsigned long size, int verbose) +{ + struct signature_check signature_check; + + 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); + + signature_check_clear(&signature_check); + return signature_check.result != 'G'; +} + +static int verify_commit(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("commit '%s' not found.", name); + + buf = read_sha1_file(sha1, &type, &size); + if (!buf) + return error("%s: unable to read file.", name); + if (type != OBJ_COMMIT) + return error("%s: cannot verify a non-commit object of type %s.", + name, typename(type)); + + ret = run_gpg_verify(sha1, buf, size, verbose); + + free(buf); + return ret; +} + +static int git_verify_commit_config(const char *var, const char *value, void *cb) +{ + int status = git_gpg_config(var, value, cb); + if (status) + return status; + return git_default_config(var, value, cb); +} + +int cmd_verify_commit(int argc, const char **argv, const char *prefix) +{ + int i = 1, verbose = 0, had_error = 0; + const struct option verify_commit_options[] = { + OPT__VERBOSE(&verbose, N_("print commit contents")), + OPT_END() + }; + + git_config(git_verify_commit_config, NULL); + + argc = parse_options(argc, argv, prefix, verify_commit_options, + verify_commit_usage, PARSE_OPT_KEEP_ARGV0); + if (argc <= i) + usage_with_options(verify_commit_usage, verify_commit_options); + + /* 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)) + had_error = 1; + return had_error; +} diff --git a/builtin/verify-pack.c b/builtin/verify-pack.c index 66cd2df0f8..7747537beb 100644 --- a/builtin/verify-pack.c +++ b/builtin/verify-pack.c @@ -8,7 +8,7 @@ static int verify_one_pack(const char *path, unsigned int flags) { - struct child_process index_pack; + struct child_process index_pack = CHILD_PROCESS_INIT; const char *argv[] = {"index-pack", NULL, NULL, NULL }; struct strbuf arg = STRBUF_INIT; int verbose = flags & VERIFY_PACK_VERBOSE; @@ -27,13 +27,11 @@ static int verify_one_pack(const char *path, unsigned int flags) * normalize these forms to "foo.pack" for "index-pack --verify". */ strbuf_addstr(&arg, path); - if (has_extension(arg.buf, ".idx")) - strbuf_splice(&arg, arg.len - 3, 3, "pack", 4); - else if (!has_extension(arg.buf, ".pack")) - strbuf_add(&arg, ".pack", 5); + if (strbuf_strip_suffix(&arg, ".idx") || + !ends_with(arg.buf, ".pack")) + strbuf_addstr(&arg, ".pack"); argv[2] = arg.buf; - memset(&index_pack, 0, sizeof(index_pack)); index_pack.argv = argv; index_pack.git_cmd = 1; |