diff options
Diffstat (limited to 'third_party/git/builtin/commit.c')
| -rw-r--r-- | third_party/git/builtin/commit.c | 1719 |
1 files changed, 1719 insertions, 0 deletions
diff --git a/third_party/git/builtin/commit.c b/third_party/git/builtin/commit.c new file mode 100644 index 000000000000..7ba33a3bec48 --- /dev/null +++ b/third_party/git/builtin/commit.c @@ -0,0 +1,1719 @@ +/* + * Builtin "git commit" + * + * Copyright (c) 2007 Kristian Høgsberg <krh@redhat.com> + * Based on git-commit.sh by Junio C Hamano and Linus Torvalds + */ + +#define USE_THE_INDEX_COMPATIBILITY_MACROS +#include "cache.h" +#include "config.h" +#include "lockfile.h" +#include "cache-tree.h" +#include "color.h" +#include "dir.h" +#include "builtin.h" +#include "diff.h" +#include "diffcore.h" +#include "commit.h" +#include "revision.h" +#include "wt-status.h" +#include "run-command.h" +#include "refs.h" +#include "log-tree.h" +#include "strbuf.h" +#include "utf8.h" +#include "parse-options.h" +#include "string-list.h" +#include "rerere.h" +#include "unpack-trees.h" +#include "quote.h" +#include "submodule.h" +#include "gpg-interface.h" +#include "column.h" +#include "sequencer.h" +#include "mailmap.h" +#include "help.h" +#include "commit-reach.h" +#include "commit-graph.h" + +static const char * const builtin_commit_usage[] = { + N_("git commit [<options>] [--] <pathspec>..."), + NULL +}; + +static const char * const builtin_status_usage[] = { + N_("git status [<options>] [--] <pathspec>..."), + NULL +}; + +static const char empty_amend_advice[] = +N_("You asked to amend the most recent commit, but doing so would make\n" +"it empty. You can repeat your command with --allow-empty, or you can\n" +"remove the commit entirely with \"git reset HEAD^\".\n"); + +static const char empty_cherry_pick_advice[] = +N_("The previous cherry-pick is now empty, possibly due to conflict resolution.\n" +"If you wish to commit it anyway, use:\n" +"\n" +" git commit --allow-empty\n" +"\n"); + +static const char empty_cherry_pick_advice_single[] = +N_("Otherwise, please use 'git cherry-pick --skip'\n"); + +static const char empty_cherry_pick_advice_multi[] = +N_("and then use:\n" +"\n" +" git cherry-pick --continue\n" +"\n" +"to resume cherry-picking the remaining commits.\n" +"If you wish to skip this commit, use:\n" +"\n" +" git cherry-pick --skip\n" +"\n"); + +static const char *color_status_slots[] = { + [WT_STATUS_HEADER] = "header", + [WT_STATUS_UPDATED] = "updated", + [WT_STATUS_CHANGED] = "changed", + [WT_STATUS_UNTRACKED] = "untracked", + [WT_STATUS_NOBRANCH] = "noBranch", + [WT_STATUS_UNMERGED] = "unmerged", + [WT_STATUS_LOCAL_BRANCH] = "localBranch", + [WT_STATUS_REMOTE_BRANCH] = "remoteBranch", + [WT_STATUS_ONBRANCH] = "branch", +}; + +static const char *use_message_buffer; +static struct lock_file index_lock; /* real index */ +static struct lock_file false_lock; /* used only for partial commits */ +static enum { + COMMIT_AS_IS = 1, + COMMIT_NORMAL, + COMMIT_PARTIAL +} commit_style; + +static const char *logfile, *force_author; +static const char *template_file; +/* + * The _message variables are commit names from which to take + * the commit message and/or authorship. + */ +static const char *author_message, *author_message_buffer; +static char *edit_message, *use_message; +static char *fixup_message, *squash_message; +static int all, also, interactive, patch_interactive, only, amend, signoff; +static int edit_flag = -1; /* unspecified */ +static int quiet, verbose, no_verify, allow_empty, dry_run, renew_authorship; +static int config_commit_verbose = -1; /* unspecified */ +static int no_post_rewrite, allow_empty_message, pathspec_file_nul; +static char *untracked_files_arg, *force_date, *ignore_submodule_arg, *ignored_arg; +static char *sign_commit, *pathspec_from_file; + +/* + * The default commit message cleanup mode will remove the lines + * beginning with # (shell comments) and leading and trailing + * whitespaces (empty lines or containing only whitespaces) + * if editor is used, and only the whitespaces if the message + * is specified explicitly. + */ +static enum commit_msg_cleanup_mode cleanup_mode; +static const char *cleanup_arg; + +static enum commit_whence whence; +static int sequencer_in_use; +static int use_editor = 1, include_status = 1; +static int have_option_m; +static struct strbuf message = STRBUF_INIT; + +static enum wt_status_format status_format = STATUS_FORMAT_UNSPECIFIED; + +static int opt_parse_porcelain(const struct option *opt, const char *arg, int unset) +{ + enum wt_status_format *value = (enum wt_status_format *)opt->value; + if (unset) + *value = STATUS_FORMAT_NONE; + else if (!arg) + *value = STATUS_FORMAT_PORCELAIN; + else if (!strcmp(arg, "v1") || !strcmp(arg, "1")) + *value = STATUS_FORMAT_PORCELAIN; + else if (!strcmp(arg, "v2") || !strcmp(arg, "2")) + *value = STATUS_FORMAT_PORCELAIN_V2; + else + die("unsupported porcelain version '%s'", arg); + + return 0; +} + +static int opt_parse_m(const struct option *opt, const char *arg, int unset) +{ + struct strbuf *buf = opt->value; + if (unset) { + have_option_m = 0; + strbuf_setlen(buf, 0); + } else { + have_option_m = 1; + if (buf->len) + strbuf_addch(buf, '\n'); + strbuf_addstr(buf, arg); + strbuf_complete_line(buf); + } + return 0; +} + +static int opt_parse_rename_score(const struct option *opt, const char *arg, int unset) +{ + const char **value = opt->value; + + BUG_ON_OPT_NEG(unset); + + if (arg != NULL && *arg == '=') + arg = arg + 1; + + *value = arg; + return 0; +} + +static void determine_whence(struct wt_status *s) +{ + if (file_exists(git_path_merge_head(the_repository))) + whence = FROM_MERGE; + else if (file_exists(git_path_cherry_pick_head(the_repository))) { + whence = FROM_CHERRY_PICK; + if (file_exists(git_path_seq_dir())) + sequencer_in_use = 1; + } + else + whence = FROM_COMMIT; + if (s) + s->whence = whence; +} + +static void status_init_config(struct wt_status *s, config_fn_t fn) +{ + wt_status_prepare(the_repository, s); + init_diff_ui_defaults(); + git_config(fn, s); + determine_whence(s); + s->hints = advice_status_hints; /* must come after git_config() */ +} + +static void rollback_index_files(void) +{ + switch (commit_style) { + case COMMIT_AS_IS: + break; /* nothing to do */ + case COMMIT_NORMAL: + rollback_lock_file(&index_lock); + break; + case COMMIT_PARTIAL: + rollback_lock_file(&index_lock); + rollback_lock_file(&false_lock); + break; + } +} + +static int commit_index_files(void) +{ + int err = 0; + + switch (commit_style) { + case COMMIT_AS_IS: + break; /* nothing to do */ + case COMMIT_NORMAL: + err = commit_lock_file(&index_lock); + break; + case COMMIT_PARTIAL: + err = commit_lock_file(&index_lock); + rollback_lock_file(&false_lock); + break; + } + + return err; +} + +/* + * Take a union of paths in the index and the named tree (typically, "HEAD"), + * and return the paths that match the given pattern in list. + */ +static int list_paths(struct string_list *list, const char *with_tree, + const struct pathspec *pattern) +{ + int i, ret; + char *m; + + if (!pattern->nr) + return 0; + + m = xcalloc(1, pattern->nr); + + if (with_tree) { + char *max_prefix = common_prefix(pattern); + overlay_tree_on_index(&the_index, with_tree, max_prefix); + free(max_prefix); + } + + for (i = 0; i < active_nr; i++) { + const struct cache_entry *ce = active_cache[i]; + struct string_list_item *item; + + if (ce->ce_flags & CE_UPDATE) + continue; + if (!ce_path_match(&the_index, ce, pattern, m)) + continue; + item = string_list_insert(list, ce->name); + if (ce_skip_worktree(ce)) + item->util = item; /* better a valid pointer than a fake one */ + } + + ret = report_path_error(m, pattern); + free(m); + return ret; +} + +static void add_remove_files(struct string_list *list) +{ + int i; + for (i = 0; i < list->nr; i++) { + struct stat st; + struct string_list_item *p = &(list->items[i]); + + /* p->util is skip-worktree */ + if (p->util) + continue; + + if (!lstat(p->string, &st)) { + if (add_to_cache(p->string, &st, 0)) + die(_("updating files failed")); + } else + remove_file_from_cache(p->string); + } +} + +static void create_base_index(const struct commit *current_head) +{ + struct tree *tree; + struct unpack_trees_options opts; + struct tree_desc t; + + if (!current_head) { + discard_cache(); + return; + } + + memset(&opts, 0, sizeof(opts)); + opts.head_idx = 1; + opts.index_only = 1; + opts.merge = 1; + opts.src_index = &the_index; + opts.dst_index = &the_index; + + opts.fn = oneway_merge; + tree = parse_tree_indirect(¤t_head->object.oid); + if (!tree) + die(_("failed to unpack HEAD tree object")); + parse_tree(tree); + init_tree_desc(&t, tree->buffer, tree->size); + if (unpack_trees(1, &t, &opts)) + exit(128); /* We've already reported the error, finish dying */ +} + +static void refresh_cache_or_die(int refresh_flags) +{ + /* + * refresh_flags contains REFRESH_QUIET, so the only errors + * are for unmerged entries. + */ + if (refresh_cache(refresh_flags | REFRESH_IN_PORCELAIN)) + die_resolve_conflict("commit"); +} + +static const char *prepare_index(int argc, const char **argv, const char *prefix, + const struct commit *current_head, int is_status) +{ + struct string_list partial = STRING_LIST_INIT_DUP; + struct pathspec pathspec; + int refresh_flags = REFRESH_QUIET; + const char *ret; + + if (is_status) + refresh_flags |= REFRESH_UNMERGED; + parse_pathspec(&pathspec, 0, + PATHSPEC_PREFER_FULL, + prefix, argv); + + if (pathspec_from_file) { + if (interactive) + die(_("--pathspec-from-file is incompatible with --interactive/--patch")); + + if (all) + die(_("--pathspec-from-file with -a does not make sense")); + + if (pathspec.nr) + die(_("--pathspec-from-file is incompatible with pathspec arguments")); + + parse_pathspec_file(&pathspec, 0, + PATHSPEC_PREFER_FULL, + prefix, pathspec_from_file, pathspec_file_nul); + } else if (pathspec_file_nul) { + die(_("--pathspec-file-nul requires --pathspec-from-file")); + } + + if (!pathspec.nr && (also || (only && !amend && !allow_empty))) + die(_("No paths with --include/--only does not make sense.")); + + if (read_cache_preload(&pathspec) < 0) + die(_("index file corrupt")); + + if (interactive) { + char *old_index_env = NULL, *old_repo_index_file; + hold_locked_index(&index_lock, LOCK_DIE_ON_ERROR); + + refresh_cache_or_die(refresh_flags); + + if (write_locked_index(&the_index, &index_lock, 0)) + die(_("unable to create temporary index")); + + old_repo_index_file = the_repository->index_file; + the_repository->index_file = + (char *)get_lock_file_path(&index_lock); + old_index_env = xstrdup_or_null(getenv(INDEX_ENVIRONMENT)); + setenv(INDEX_ENVIRONMENT, the_repository->index_file, 1); + + if (interactive_add(argc, argv, prefix, patch_interactive) != 0) + die(_("interactive add failed")); + + the_repository->index_file = old_repo_index_file; + if (old_index_env && *old_index_env) + setenv(INDEX_ENVIRONMENT, old_index_env, 1); + else + unsetenv(INDEX_ENVIRONMENT); + FREE_AND_NULL(old_index_env); + + discard_cache(); + read_cache_from(get_lock_file_path(&index_lock)); + if (update_main_cache_tree(WRITE_TREE_SILENT) == 0) { + if (reopen_lock_file(&index_lock) < 0) + die(_("unable to write index file")); + if (write_locked_index(&the_index, &index_lock, 0)) + die(_("unable to update temporary index")); + } else + warning(_("Failed to update main cache tree")); + + commit_style = COMMIT_NORMAL; + ret = get_lock_file_path(&index_lock); + goto out; + } + + /* + * Non partial, non as-is commit. + * + * (1) get the real index; + * (2) update the_index as necessary; + * (3) write the_index out to the real index (still locked); + * (4) return the name of the locked index file. + * + * The caller should run hooks on the locked real index, and + * (A) if all goes well, commit the real index; + * (B) on failure, rollback the real index. + */ + if (all || (also && pathspec.nr)) { + hold_locked_index(&index_lock, LOCK_DIE_ON_ERROR); + add_files_to_cache(also ? prefix : NULL, &pathspec, 0); + refresh_cache_or_die(refresh_flags); + update_main_cache_tree(WRITE_TREE_SILENT); + if (write_locked_index(&the_index, &index_lock, 0)) + die(_("unable to write new_index file")); + commit_style = COMMIT_NORMAL; + ret = get_lock_file_path(&index_lock); + goto out; + } + + /* + * As-is commit. + * + * (1) return the name of the real index file. + * + * The caller should run hooks on the real index, + * and create commit from the_index. + * We still need to refresh the index here. + */ + if (!only && !pathspec.nr) { + hold_locked_index(&index_lock, LOCK_DIE_ON_ERROR); + refresh_cache_or_die(refresh_flags); + if (active_cache_changed + || !cache_tree_fully_valid(active_cache_tree)) + update_main_cache_tree(WRITE_TREE_SILENT); + if (write_locked_index(&the_index, &index_lock, + COMMIT_LOCK | SKIP_IF_UNCHANGED)) + die(_("unable to write new_index file")); + commit_style = COMMIT_AS_IS; + ret = get_index_file(); + goto out; + } + + /* + * A partial commit. + * + * (0) find the set of affected paths; + * (1) get lock on the real index file; + * (2) update the_index with the given paths; + * (3) write the_index out to the real index (still locked); + * (4) get lock on the false index file; + * (5) reset the_index from HEAD; + * (6) update the_index the same way as (2); + * (7) write the_index out to the false index file; + * (8) return the name of the false index file (still locked); + * + * The caller should run hooks on the locked false index, and + * create commit from it. Then + * (A) if all goes well, commit the real index; + * (B) on failure, rollback the real index; + * In either case, rollback the false index. + */ + commit_style = COMMIT_PARTIAL; + + if (whence != FROM_COMMIT) { + if (whence == FROM_MERGE) + die(_("cannot do a partial commit during a merge.")); + else if (whence == FROM_CHERRY_PICK) + die(_("cannot do a partial commit during a cherry-pick.")); + } + + if (list_paths(&partial, !current_head ? NULL : "HEAD", &pathspec)) + exit(1); + + discard_cache(); + if (read_cache() < 0) + die(_("cannot read the index")); + + hold_locked_index(&index_lock, LOCK_DIE_ON_ERROR); + add_remove_files(&partial); + refresh_cache(REFRESH_QUIET); + update_main_cache_tree(WRITE_TREE_SILENT); + if (write_locked_index(&the_index, &index_lock, 0)) + die(_("unable to write new_index file")); + + 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_locked_index(&the_index, &false_lock, 0)) + die(_("unable to write temporary index file")); + + discard_cache(); + ret = get_lock_file_path(&false_lock); + read_cache_from(ret); +out: + string_list_clear(&partial, 0); + clear_pathspec(&pathspec); + return ret; +} + +static int run_status(FILE *fp, const char *index_file, const char *prefix, int nowarn, + struct wt_status *s) +{ + struct object_id oid; + + if (s->relative_paths) + s->prefix = prefix; + + if (amend) { + s->amend = 1; + s->reference = "HEAD^1"; + } + s->verbose = verbose; + s->index_file = index_file; + s->fp = fp; + s->nowarn = nowarn; + s->is_initial = get_oid(s->reference, &oid) ? 1 : 0; + if (!s->is_initial) + oidcpy(&s->oid_commit, &oid); + s->status_format = status_format; + s->ignore_submodule_arg = ignore_submodule_arg; + + wt_status_collect(s); + wt_status_print(s); + wt_status_collect_free_buffers(s); + + return s->committable; +} + +static int is_a_merge(const struct commit *current_head) +{ + return !!(current_head->parents && current_head->parents->next); +} + +static void assert_split_ident(struct ident_split *id, const struct strbuf *buf) +{ + if (split_ident_line(id, buf->buf, buf->len) || !id->date_begin) + BUG("unable to parse our own ident: %s", buf->buf); +} + +static void export_one(const char *var, const char *s, const char *e, int hack) +{ + struct strbuf buf = STRBUF_INIT; + if (hack) + strbuf_addch(&buf, hack); + strbuf_add(&buf, s, e - s); + setenv(var, buf.buf, 1); + strbuf_release(&buf); +} + +static int parse_force_date(const char *in, struct strbuf *out) +{ + strbuf_addch(out, '@'); + + if (parse_date(in, out) < 0) { + int errors = 0; + unsigned long t = approxidate_careful(in, &errors); + if (errors) + return -1; + strbuf_addf(out, "%lu", t); + } + + return 0; +} + +static void set_ident_var(char **buf, char *val) +{ + free(*buf); + *buf = val; +} + +static void determine_author_info(struct strbuf *author_ident) +{ + char *name, *email, *date; + struct ident_split author; + + name = xstrdup_or_null(getenv("GIT_AUTHOR_NAME")); + email = xstrdup_or_null(getenv("GIT_AUTHOR_EMAIL")); + date = xstrdup_or_null(getenv("GIT_AUTHOR_DATE")); + + if (author_message) { + struct ident_split ident; + size_t len; + const char *a; + + a = find_commit_header(author_message_buffer, "author", &len); + if (!a) + 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) { + struct ident_split ident; + + if (split_ident_line(&ident, force_author, strlen(force_author)) < 0) + die(_("malformed --author parameter")); + 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)); + } + + strbuf_addstr(author_ident, fmt_ident(name, email, WANT_AUTHOR_IDENT, date, + IDENT_STRICT)); + assert_split_ident(&author, author_ident); + export_one("GIT_AUTHOR_NAME", author.name_begin, author.name_end, 0); + export_one("GIT_AUTHOR_EMAIL", author.mail_begin, author.mail_end, 0); + export_one("GIT_AUTHOR_DATE", author.date_begin, author.tz_end, '@'); + free(name); + free(email); + free(date); +} + +static int author_date_is_interesting(void) +{ + 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, + struct commit *current_head, + struct wt_status *s, + struct strbuf *author_ident) +{ + struct stat statbuf; + struct strbuf committer_ident = STRBUF_INIT; + int committable; + struct strbuf sb = STRBUF_INIT; + const char *hook_arg1 = NULL; + const char *hook_arg2 = NULL; + int clean_message_contents = (cleanup_mode != COMMIT_MSG_CLEANUP_NONE); + int old_display_comment_prefix; + int merge_contains_scissors = 0; + + /* This checks and barfs if author is badly specified */ + determine_author_info(author_ident); + + if (!no_verify && run_commit_hook(use_editor, index_file, "pre-commit", NULL)) + return 0; + + if (squash_message) { + /* + * Insert the proper subject line before other commit + * message options add their content. + */ + if (use_message && !strcmp(use_message, squash_message)) + strbuf_addstr(&sb, "squash! "); + else { + struct pretty_print_context ctx = {0}; + struct commit *c; + c = lookup_commit_reference_by_name(squash_message); + if (!c) + die(_("could not lookup commit %s"), squash_message); + ctx.output_encoding = get_commit_output_encoding(); + format_commit_message(c, "squash! %s\n\n", &sb, + &ctx); + } + } + + if (have_option_m && !fixup_message) { + strbuf_addbuf(&sb, &message); + hook_arg1 = "message"; + } else if (logfile && !strcmp(logfile, "-")) { + if (isatty(0)) + fprintf(stderr, _("(reading log message from standard input)\n")); + if (strbuf_read(&sb, 0, 0) < 0) + die_errno(_("could not read log from standard input")); + hook_arg1 = "message"; + } else if (logfile) { + if (strbuf_read_file(&sb, logfile, 0) < 0) + die_errno(_("could not read log file '%s'"), + logfile); + hook_arg1 = "message"; + } else if (use_message) { + char *buffer; + buffer = strstr(use_message_buffer, "\n\n"); + if (buffer) + strbuf_addstr(&sb, skip_blank_lines(buffer + 2)); + hook_arg1 = "commit"; + hook_arg2 = use_message; + } else if (fixup_message) { + struct pretty_print_context ctx = {0}; + struct commit *commit; + commit = lookup_commit_reference_by_name(fixup_message); + if (!commit) + die(_("could not lookup commit %s"), fixup_message); + ctx.output_encoding = get_commit_output_encoding(); + format_commit_message(commit, "fixup! %s\n\n", + &sb, &ctx); + if (have_option_m) + strbuf_addbuf(&sb, &message); + hook_arg1 = "message"; + } else if (!stat(git_path_merge_msg(the_repository), &statbuf)) { + size_t merge_msg_start; + + /* + * prepend SQUASH_MSG here if it exists and a + * "merge --squash" was originally performed + */ + if (!stat(git_path_squash_msg(the_repository), &statbuf)) { + if (strbuf_read_file(&sb, git_path_squash_msg(the_repository), 0) < 0) + die_errno(_("could not read SQUASH_MSG")); + hook_arg1 = "squash"; + } else + hook_arg1 = "merge"; + + merge_msg_start = sb.len; + if (strbuf_read_file(&sb, git_path_merge_msg(the_repository), 0) < 0) + die_errno(_("could not read MERGE_MSG")); + + if (cleanup_mode == COMMIT_MSG_CLEANUP_SCISSORS && + wt_status_locate_end(sb.buf + merge_msg_start, + sb.len - merge_msg_start) < + sb.len - merge_msg_start) + merge_contains_scissors = 1; + } else if (!stat(git_path_squash_msg(the_repository), &statbuf)) { + if (strbuf_read_file(&sb, git_path_squash_msg(the_repository), 0) < 0) + die_errno(_("could not read SQUASH_MSG")); + hook_arg1 = "squash"; + } else if (template_file) { + if (strbuf_read_file(&sb, template_file, 0) < 0) + die_errno(_("could not read '%s'"), template_file); + hook_arg1 = "template"; + clean_message_contents = 0; + } + + /* + * The remaining cases don't modify the template message, but + * just set the argument(s) to the prepare-commit-msg hook. + */ + else if (whence == FROM_MERGE) + hook_arg1 = "merge"; + else if (whence == FROM_CHERRY_PICK) { + hook_arg1 = "commit"; + hook_arg2 = "CHERRY_PICK_HEAD"; + } + + if (squash_message) { + /* + * If squash_commit was used for the commit subject, + * then we're possibly hijacking other commit log options. + * Reset the hook args to tell the real story. + */ + hook_arg1 = "message"; + hook_arg2 = ""; + } + + s->fp = fopen_for_writing(git_path_commit_editmsg()); + if (s->fp == NULL) + die_errno(_("could not open '%s'"), git_path_commit_editmsg()); + + /* Ignore status.displayCommentPrefix: we do need comments in COMMIT_EDITMSG. */ + old_display_comment_prefix = s->display_comment_prefix; + s->display_comment_prefix = 1; + + /* + * Most hints are counter-productive when the commit has + * already started. + */ + s->hints = 0; + + if (clean_message_contents) + strbuf_stripspace(&sb, 0); + + if (signoff) + append_signoff(&sb, ignore_non_trailer(sb.buf, sb.len), 0); + + if (fwrite(sb.buf, 1, sb.len, s->fp) < sb.len) + die_errno(_("could not write commit template")); + + 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) { + int ident_shown = 0; + int saved_color_setting; + struct ident_split ci, ai; + + if (whence != FROM_COMMIT) { + if (cleanup_mode == COMMIT_MSG_CLEANUP_SCISSORS && + !merge_contains_scissors) + wt_status_add_cut_line(s->fp); + status_printf_ln(s, GIT_COLOR_NORMAL, + whence == FROM_MERGE + ? _("\n" + "It looks like you may be committing a merge.\n" + "If this is not correct, please remove the file\n" + " %s\n" + "and try again.\n") + : _("\n" + "It looks like you may be committing a cherry-pick.\n" + "If this is not correct, please remove the file\n" + " %s\n" + "and try again.\n"), + whence == FROM_MERGE ? + git_path_merge_head(the_repository) : + git_path_cherry_pick_head(the_repository)); + } + + fprintf(s->fp, "\n"); + if (cleanup_mode == COMMIT_MSG_CLEANUP_ALL) + status_printf(s, GIT_COLOR_NORMAL, + _("Please enter the commit message for your changes." + " Lines starting\nwith '%c' will be ignored, and an empty" + " message aborts the commit.\n"), comment_line_char); + else if (cleanup_mode == COMMIT_MSG_CLEANUP_SCISSORS) { + if (whence == FROM_COMMIT && !merge_contains_scissors) + wt_status_add_cut_line(s->fp); + } else /* COMMIT_MSG_CLEANUP_SPACE, that is. */ + status_printf(s, GIT_COLOR_NORMAL, + _("Please enter the commit message for your changes." + " Lines starting\n" + "with '%c' will be kept; you may remove them" + " yourself if you want to.\n" + "An empty message aborts the commit.\n"), comment_line_char); + + /* + * These should never fail because they come from our own + * fmt_ident. They may fail the sane_ident test, but we know + * that the name and mail pointers will at least be valid, + * which is enough for our tests and printing here. + */ + assert_split_ident(&ai, author_ident); + assert_split_ident(&ci, &committer_ident); + + if (ident_cmp(&ai, &ci)) + status_printf_ln(s, GIT_COLOR_NORMAL, + _("%s" + "Author: %.*s <%.*s>"), + ident_shown++ ? "" : "\n", + (int)(ai.name_end - ai.name_begin), ai.name_begin, + (int)(ai.mail_end - ai.mail_begin), ai.mail_begin); + + if (author_date_is_interesting()) + status_printf_ln(s, GIT_COLOR_NORMAL, + _("%s" + "Date: %s"), + ident_shown++ ? "" : "\n", + show_ident_date(&ai, DATE_MODE(NORMAL))); + + if (!committer_ident_sufficiently_given()) + status_printf_ln(s, GIT_COLOR_NORMAL, + _("%s" + "Committer: %.*s <%.*s>"), + ident_shown++ ? "" : "\n", + (int)(ci.name_end - ci.name_begin), ci.name_begin, + (int)(ci.mail_end - ci.mail_begin), ci.mail_begin); + + status_printf_ln(s, GIT_COLOR_NORMAL, "%s", ""); /* Add new line for clarity */ + + saved_color_setting = s->use_color; + s->use_color = 0; + committable = run_status(s->fp, index_file, prefix, 1, s); + s->use_color = saved_color_setting; + string_list_clear(&s->change, 1); + } else { + struct object_id oid; + const char *parent = "HEAD"; + + if (!active_nr && read_cache() < 0) + die(_("Cannot read index")); + + if (amend) + parent = "HEAD^1"; + + if (get_oid(parent, &oid)) { + int i, ita_nr = 0; + + for (i = 0; i < active_nr; i++) + if (ce_intent_to_add(active_cache[i])) + ita_nr++; + committable = active_nr - ita_nr > 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. + */ + struct diff_flags flags = DIFF_FLAGS_INIT; + flags.override_submodule_config = 1; + if (ignore_submodule_arg && + !strcmp(ignore_submodule_arg, "all")) + flags.ignore_submodules = 1; + committable = index_differs_from(the_repository, + parent, &flags, 1); + } + } + strbuf_release(&committer_ident); + + fclose(s->fp); + + /* + * Reject an attempt to record a non-merge empty commit without + * explicit --allow-empty. In the cherry-pick case, it may be + * empty due to conflict resolution, which the user should okay. + */ + if (!committable && whence != FROM_MERGE && !allow_empty && + !(amend && is_a_merge(current_head))) { + s->hints = advice_status_hints; + s->display_comment_prefix = old_display_comment_prefix; + run_status(stdout, index_file, prefix, 0, s); + if (amend) + fputs(_(empty_amend_advice), stderr); + else if (whence == FROM_CHERRY_PICK) { + fputs(_(empty_cherry_pick_advice), stderr); + if (!sequencer_in_use) + fputs(_(empty_cherry_pick_advice_single), stderr); + else + fputs(_(empty_cherry_pick_advice_multi), stderr); + } + return 0; + } + + if (!no_verify && find_hook("pre-commit")) { + /* + * Re-read the index as pre-commit hook could have updated it, + * and write it out as a tree. We must do this before we invoke + * the editor and after we invoke run_status above. + */ + discard_cache(); + } + read_cache_from(index_file); + + if (update_main_cache_tree(0)) { + error(_("Error building trees")); + return 0; + } + + 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) { + struct argv_array env = ARGV_ARRAY_INIT; + + argv_array_pushf(&env, "GIT_INDEX_FILE=%s", index_file); + if (launch_editor(git_path_commit_editmsg(), NULL, env.argv)) { + fprintf(stderr, + _("Please supply the message using either -m or -F option.\n")); + exit(1); + } + argv_array_clear(&env); + } + + if (!no_verify && + run_commit_hook(use_editor, index_file, "commit-msg", git_path_commit_editmsg(), NULL)) { + return 0; + } + + return 1; +} + +static const char *find_author_by_nickname(const char *name) +{ + struct rev_info revs; + struct commit *commit; + struct strbuf buf = STRBUF_INIT; + struct string_list mailmap = STRING_LIST_INIT_NODUP; + const char *av[20]; + int ac = 0; + + repo_init_revisions(the_repository, &revs, NULL); + strbuf_addf(&buf, "--author=%s", name); + av[++ac] = "--all"; + av[++ac] = "-i"; + av[++ac] = buf.buf; + av[++ac] = NULL; + setup_revisions(ac, av, &revs, NULL); + revs.mailmap = &mailmap; + read_mailmap(revs.mailmap, NULL); + + if (prepare_revision_walk(&revs)) + die(_("revision walk setup failed")); + commit = get_revision(&revs); + if (commit) { + struct pretty_print_context ctx = {0}; + ctx.date_mode.type = DATE_NORMAL; + strbuf_release(&buf); + format_commit_message(commit, "%aN <%aE>", &buf, &ctx); + clear_mailmap(&mailmap); + return strbuf_detach(&buf, NULL); + } + die(_("--author '%s' is not 'Name <email>' and matches no existing author"), name); +} + +static void handle_ignored_arg(struct wt_status *s) +{ + if (!ignored_arg) + ; /* default already initialized */ + else if (!strcmp(ignored_arg, "traditional")) + s->show_ignored_mode = SHOW_TRADITIONAL_IGNORED; + else if (!strcmp(ignored_arg, "no")) + s->show_ignored_mode = SHOW_NO_IGNORED; + else if (!strcmp(ignored_arg, "matching")) + s->show_ignored_mode = SHOW_MATCHING_IGNORED; + else + die(_("Invalid ignored mode '%s'"), ignored_arg); +} + +static void handle_untracked_files_arg(struct wt_status *s) +{ + if (!untracked_files_arg) + ; /* default already initialized */ + else if (!strcmp(untracked_files_arg, "no")) + s->show_untracked_files = SHOW_NO_UNTRACKED_FILES; + else if (!strcmp(untracked_files_arg, "normal")) + s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES; + else if (!strcmp(untracked_files_arg, "all")) + s->show_untracked_files = SHOW_ALL_UNTRACKED_FILES; + /* + * Please update $__git_untracked_file_modes in + * git-completion.bash when you add new options + */ + else + die(_("Invalid untracked files mode '%s'"), untracked_files_arg); +} + +static const char *read_commit_message(const char *name) +{ + const char *out_enc; + struct commit *commit; + + commit = lookup_commit_reference_by_name(name); + if (!commit) + die(_("could not lookup commit %s"), name); + out_enc = get_commit_output_encoding(); + return logmsg_reencode(commit, NULL, out_enc); +} + +/* + * Enumerate what needs to be propagated when --porcelain + * is not in effect here. + */ +static struct status_deferred_config { + enum wt_status_format status_format; + int show_branch; + enum ahead_behind_flags ahead_behind; +} status_deferred_config = { + STATUS_FORMAT_UNSPECIFIED, + -1, /* unspecified */ + AHEAD_BEHIND_UNSPECIFIED, +}; + +static void finalize_deferred_config(struct wt_status *s) +{ + int use_deferred_config = (status_format != STATUS_FORMAT_PORCELAIN && + status_format != STATUS_FORMAT_PORCELAIN_V2 && + !s->null_termination); + + if (s->null_termination) { + if (status_format == STATUS_FORMAT_NONE || + status_format == STATUS_FORMAT_UNSPECIFIED) + status_format = STATUS_FORMAT_PORCELAIN; + else if (status_format == STATUS_FORMAT_LONG) + die(_("--long and -z are incompatible")); + } + + if (use_deferred_config && status_format == STATUS_FORMAT_UNSPECIFIED) + status_format = status_deferred_config.status_format; + if (status_format == STATUS_FORMAT_UNSPECIFIED) + status_format = STATUS_FORMAT_NONE; + + if (use_deferred_config && s->show_branch < 0) + s->show_branch = status_deferred_config.show_branch; + if (s->show_branch < 0) + s->show_branch = 0; + + /* + * If the user did not give a "--[no]-ahead-behind" command + * line argument *AND* we will print in a human-readable format + * (short, long etc.) then we inherit from the status.aheadbehind + * config setting. In all other cases (and porcelain V[12] formats + * in particular), we inherit _FULL for backwards compatibility. + */ + if (use_deferred_config && + s->ahead_behind_flags == AHEAD_BEHIND_UNSPECIFIED) + s->ahead_behind_flags = status_deferred_config.ahead_behind; + + if (s->ahead_behind_flags == AHEAD_BEHIND_UNSPECIFIED) + s->ahead_behind_flags = AHEAD_BEHIND_FULL; +} + +static int parse_and_validate_options(int argc, const char *argv[], + const struct option *options, + const char * const usage[], + const char *prefix, + struct commit *current_head, + struct wt_status *s) +{ + int f = 0; + + argc = parse_options(argc, argv, prefix, options, usage, 0); + finalize_deferred_config(s); + + if (force_author && !strchr(force_author, '>')) + force_author = find_author_by_nickname(force_author); + + if (force_author && renew_authorship) + die(_("Using both --reset-author and --author does not make sense")); + + if (logfile || have_option_m || use_message || fixup_message) + use_editor = 0; + if (0 <= edit_flag) + use_editor = edit_flag; + + /* Sanity check options */ + if (amend && !current_head) + die(_("You have nothing to amend.")); + if (amend && whence != FROM_COMMIT) { + if (whence == FROM_MERGE) + die(_("You are in the middle of a merge -- cannot amend.")); + else if (whence == FROM_CHERRY_PICK) + die(_("You are in the middle of a cherry-pick -- cannot amend.")); + } + if (fixup_message && squash_message) + die(_("Options --squash and --fixup cannot be used together")); + if (use_message) + f++; + if (edit_message) + f++; + if (fixup_message) + f++; + if (logfile) + f++; + if (f > 1) + die(_("Only one of -c/-C/-F/--fixup can be used.")); + if (have_option_m && (edit_message || use_message || logfile)) + die((_("Option -m cannot be combined with -c/-C/-F."))); + if (f || have_option_m) + template_file = NULL; + if (edit_message) + use_message = edit_message; + if (amend && !use_message && !fixup_message) + use_message = "HEAD"; + if (!use_message && whence != FROM_CHERRY_PICK && renew_authorship) + die(_("--reset-author can be used only with -C, -c or --amend.")); + if (use_message) { + use_message_buffer = read_commit_message(use_message); + if (!renew_authorship) { + author_message = use_message; + author_message_buffer = use_message_buffer; + } + } + if (whence == FROM_CHERRY_PICK && !renew_authorship) { + author_message = "CHERRY_PICK_HEAD"; + author_message_buffer = read_commit_message(author_message); + } + + if (patch_interactive) + interactive = 1; + + if (also + only + all + interactive > 1) + die(_("Only one of --include/--only/--all/--interactive/--patch can be used.")); + cleanup_mode = get_cleanup_mode(cleanup_arg, use_editor); + + handle_untracked_files_arg(s); + + if (all && argc > 0) + die(_("paths '%s ...' with -a does not make sense"), + argv[0]); + + if (status_format != STATUS_FORMAT_NONE) + dry_run = 1; + + return argc; +} + +static int dry_run_commit(int argc, const char **argv, const char *prefix, + const struct commit *current_head, struct wt_status *s) +{ + int committable; + const char *index_file; + + index_file = prepare_index(argc, argv, prefix, current_head, 1); + committable = run_status(stdout, index_file, prefix, 0, s); + rollback_index_files(); + + return committable ? 0 : 1; +} + +define_list_config_array_extra(color_status_slots, {"added"}); + +static int parse_status_slot(const char *slot) +{ + if (!strcasecmp(slot, "added")) + return WT_STATUS_UPDATED; + + return LOOKUP_CONFIG(color_status_slots, slot); +} + +static int git_status_config(const char *k, const char *v, void *cb) +{ + struct wt_status *s = cb; + const char *slot_name; + + if (starts_with(k, "column.")) + return git_column_config(k, v, "status", &s->colopts); + if (!strcmp(k, "status.submodulesummary")) { + int is_bool; + s->submodule_summary = git_config_bool_or_int(k, v, &is_bool); + if (is_bool && s->submodule_summary) + s->submodule_summary = -1; + return 0; + } + if (!strcmp(k, "status.short")) { + if (git_config_bool(k, v)) + status_deferred_config.status_format = STATUS_FORMAT_SHORT; + else + status_deferred_config.status_format = STATUS_FORMAT_NONE; + return 0; + } + if (!strcmp(k, "status.branch")) { + status_deferred_config.show_branch = git_config_bool(k, v); + return 0; + } + if (!strcmp(k, "status.aheadbehind")) { + status_deferred_config.ahead_behind = git_config_bool(k, v); + return 0; + } + if (!strcmp(k, "status.showstash")) { + s->show_stash = git_config_bool(k, v); + return 0; + } + if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) { + s->use_color = git_config_colorbool(k, v); + return 0; + } + if (!strcmp(k, "status.displaycommentprefix")) { + s->display_comment_prefix = git_config_bool(k, v); + return 0; + } + if (skip_prefix(k, "status.color.", &slot_name) || + skip_prefix(k, "color.status.", &slot_name)) { + int slot = parse_status_slot(slot_name); + if (slot < 0) + return 0; + if (!v) + return config_error_nonbool(k); + return color_parse(v, s->color_palette[slot]); + } + if (!strcmp(k, "status.relativepaths")) { + s->relative_paths = git_config_bool(k, v); + return 0; + } + if (!strcmp(k, "status.showuntrackedfiles")) { + if (!v) + return config_error_nonbool(k); + else if (!strcmp(v, "no")) + s->show_untracked_files = SHOW_NO_UNTRACKED_FILES; + else if (!strcmp(v, "normal")) + s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES; + else if (!strcmp(v, "all")) + s->show_untracked_files = SHOW_ALL_UNTRACKED_FILES; + else + return error(_("Invalid untracked files mode '%s'"), v); + return 0; + } + if (!strcmp(k, "diff.renamelimit")) { + if (s->rename_limit == -1) + s->rename_limit = git_config_int(k, v); + return 0; + } + if (!strcmp(k, "status.renamelimit")) { + s->rename_limit = git_config_int(k, v); + return 0; + } + if (!strcmp(k, "diff.renames")) { + if (s->detect_rename == -1) + s->detect_rename = git_config_rename(k, v); + return 0; + } + if (!strcmp(k, "status.renames")) { + s->detect_rename = git_config_rename(k, v); + return 0; + } + return git_diff_ui_config(k, v, NULL); +} + +int cmd_status(int argc, const char **argv, const char *prefix) +{ + static int no_renames = -1; + static const char *rename_score_arg = (const char *)-1; + static struct wt_status s; + unsigned int progress_flag = 0; + int fd; + struct object_id oid; + static struct option builtin_status_options[] = { + OPT__VERBOSE(&verbose, N_("be verbose")), + OPT_SET_INT('s', "short", &status_format, + N_("show status concisely"), STATUS_FORMAT_SHORT), + OPT_BOOL('b', "branch", &s.show_branch, + N_("show branch information")), + OPT_BOOL(0, "show-stash", &s.show_stash, + N_("show stash information")), + OPT_BOOL(0, "ahead-behind", &s.ahead_behind_flags, + N_("compute full ahead/behind values")), + { OPTION_CALLBACK, 0, "porcelain", &status_format, + N_("version"), N_("machine-readable output"), + PARSE_OPT_OPTARG, opt_parse_porcelain }, + OPT_SET_INT(0, "long", &status_format, + N_("show status in long format (default)"), + STATUS_FORMAT_LONG), + OPT_BOOL('z', "null", &s.null_termination, + N_("terminate entries with NUL")), + { OPTION_STRING, 'u', "untracked-files", &untracked_files_arg, + N_("mode"), + N_("show untracked files, optional modes: all, normal, no. (Default: all)"), + PARSE_OPT_OPTARG, NULL, (intptr_t)"all" }, + { OPTION_STRING, 0, "ignored", &ignored_arg, + N_("mode"), + N_("show ignored files, optional modes: traditional, matching, no. (Default: traditional)"), + PARSE_OPT_OPTARG, NULL, (intptr_t)"traditional" }, + { OPTION_STRING, 0, "ignore-submodules", &ignore_submodule_arg, N_("when"), + N_("ignore changes to submodules, optional when: all, dirty, untracked. (Default: all)"), + PARSE_OPT_OPTARG, NULL, (intptr_t)"all" }, + OPT_COLUMN(0, "column", &s.colopts, N_("list untracked files in columns")), + OPT_BOOL(0, "no-renames", &no_renames, N_("do not detect renames")), + { OPTION_CALLBACK, 'M', "find-renames", &rename_score_arg, + N_("n"), N_("detect renames, optionally set similarity index"), + PARSE_OPT_OPTARG | PARSE_OPT_NONEG, opt_parse_rename_score }, + OPT_END(), + }; + + if (argc == 2 && !strcmp(argv[1], "-h")) + usage_with_options(builtin_status_usage, builtin_status_options); + + status_init_config(&s, git_status_config); + argc = parse_options(argc, argv, prefix, + builtin_status_options, + builtin_status_usage, 0); + finalize_colopts(&s.colopts, -1); + finalize_deferred_config(&s); + + handle_untracked_files_arg(&s); + handle_ignored_arg(&s); + + if (s.show_ignored_mode == SHOW_MATCHING_IGNORED && + s.show_untracked_files == SHOW_NO_UNTRACKED_FILES) + die(_("Unsupported combination of ignored and untracked-files arguments")); + + parse_pathspec(&s.pathspec, 0, + PATHSPEC_PREFER_FULL, + prefix, argv); + + if (status_format != STATUS_FORMAT_PORCELAIN && + status_format != STATUS_FORMAT_PORCELAIN_V2) + progress_flag = REFRESH_PROGRESS; + repo_read_index(the_repository); + refresh_index(&the_index, + REFRESH_QUIET|REFRESH_UNMERGED|progress_flag, + &s.pathspec, NULL, NULL); + + if (use_optional_locks()) + fd = hold_locked_index(&index_lock, 0); + else + fd = -1; + + s.is_initial = get_oid(s.reference, &oid) ? 1 : 0; + if (!s.is_initial) + oidcpy(&s.oid_commit, &oid); + + s.ignore_submodule_arg = ignore_submodule_arg; + s.status_format = status_format; + s.verbose = verbose; + if (no_renames != -1) + s.detect_rename = !no_renames; + if ((intptr_t)rename_score_arg != -1) { + if (s.detect_rename < DIFF_DETECT_RENAME) + s.detect_rename = DIFF_DETECT_RENAME; + if (rename_score_arg) + s.rename_score = parse_rename_score(&rename_score_arg); + } + + wt_status_collect(&s); + + if (0 <= fd) + repo_update_index_if_able(the_repository, &index_lock); + + if (s.relative_paths) + s.prefix = prefix; + + wt_status_print(&s); + wt_status_collect_free_buffers(&s); + + return 0; +} + +static int git_commit_config(const char *k, const char *v, void *cb) +{ + struct wt_status *s = cb; + int status; + + if (!strcmp(k, "commit.template")) + return git_config_pathname(&template_file, k, v); + if (!strcmp(k, "commit.status")) { + include_status = git_config_bool(k, v); + return 0; + } + if (!strcmp(k, "commit.cleanup")) + return git_config_string(&cleanup_arg, k, v); + if (!strcmp(k, "commit.gpgsign")) { + sign_commit = git_config_bool(k, v) ? "" : NULL; + return 0; + } + if (!strcmp(k, "commit.verbose")) { + int is_bool; + config_commit_verbose = git_config_bool_or_int(k, v, &is_bool); + return 0; + } + + status = git_gpg_config(k, v, NULL); + if (status) + return status; + return git_status_config(k, v, s); +} + +int cmd_commit(int argc, const char **argv, const char *prefix) +{ + const char *argv_gc_auto[] = {"gc", "--auto", NULL}; + static struct wt_status s; + static struct option builtin_commit_options[] = { + OPT__QUIET(&quiet, N_("suppress summary after successful commit")), + OPT__VERBOSE(&verbose, N_("show diff in commit message template")), + + OPT_GROUP(N_("Commit message options")), + OPT_FILENAME('F', "file", &logfile, N_("read message from file")), + OPT_STRING(0, "author", &force_author, N_("author"), N_("override author for commit")), + OPT_STRING(0, "date", &force_date, N_("date"), N_("override date for commit")), + OPT_CALLBACK('m', "message", &message, N_("message"), N_("commit message"), opt_parse_m), + OPT_STRING('c', "reedit-message", &edit_message, N_("commit"), N_("reuse and edit message from specified commit")), + OPT_STRING('C', "reuse-message", &use_message, N_("commit"), N_("reuse message from specified commit")), + OPT_STRING(0, "fixup", &fixup_message, N_("commit"), N_("use autosquash formatted message to fixup specified commit")), + OPT_STRING(0, "squash", &squash_message, N_("commit"), N_("use autosquash formatted message to squash specified commit")), + OPT_BOOL(0, "reset-author", &renew_authorship, N_("the commit is authored by me now (used with -C/-c/--amend)")), + OPT_BOOL('s', "signoff", &signoff, N_("add Signed-off-by:")), + OPT_FILENAME('t', "template", &template_file, N_("use specified template file")), + OPT_BOOL('e', "edit", &edit_flag, N_("force edit of commit")), + OPT_CLEANUP(&cleanup_arg), + OPT_BOOL(0, "status", &include_status, N_("include status in commit message template")), + { OPTION_STRING, 'S', "gpg-sign", &sign_commit, N_("key-id"), + N_("GPG sign commit"), PARSE_OPT_OPTARG, NULL, (intptr_t) "" }, + /* end commit message options */ + + OPT_GROUP(N_("Commit contents options")), + OPT_BOOL('a', "all", &all, N_("commit all changed files")), + OPT_BOOL('i', "include", &also, N_("add specified files to index for commit")), + OPT_BOOL(0, "interactive", &interactive, N_("interactively add files")), + OPT_BOOL('p', "patch", &patch_interactive, N_("interactively add changes")), + OPT_BOOL('o', "only", &only, N_("commit only specified files")), + OPT_BOOL('n', "no-verify", &no_verify, N_("bypass pre-commit and commit-msg hooks")), + OPT_BOOL(0, "dry-run", &dry_run, N_("show what would be committed")), + OPT_SET_INT(0, "short", &status_format, N_("show status concisely"), + STATUS_FORMAT_SHORT), + OPT_BOOL(0, "branch", &s.show_branch, N_("show branch information")), + OPT_BOOL(0, "ahead-behind", &s.ahead_behind_flags, + N_("compute full ahead/behind values")), + OPT_SET_INT(0, "porcelain", &status_format, + N_("machine-readable output"), STATUS_FORMAT_PORCELAIN), + OPT_SET_INT(0, "long", &status_format, + N_("show status in long format (default)"), + STATUS_FORMAT_LONG), + OPT_BOOL('z', "null", &s.null_termination, + N_("terminate entries with NUL")), + OPT_BOOL(0, "amend", &amend, N_("amend previous commit")), + OPT_BOOL(0, "no-post-rewrite", &no_post_rewrite, N_("bypass post-rewrite hook")), + { OPTION_STRING, 'u', "untracked-files", &untracked_files_arg, N_("mode"), N_("show untracked files, optional modes: all, normal, no. (Default: all)"), PARSE_OPT_OPTARG, NULL, (intptr_t)"all" }, + OPT_PATHSPEC_FROM_FILE(&pathspec_from_file), + OPT_PATHSPEC_FILE_NUL(&pathspec_file_nul), + /* end commit contents options */ + + OPT_HIDDEN_BOOL(0, "allow-empty", &allow_empty, + N_("ok to record an empty change")), + OPT_HIDDEN_BOOL(0, "allow-empty-message", &allow_empty_message, + N_("ok to record a change with an empty message")), + + OPT_END() + }; + + struct strbuf sb = STRBUF_INIT; + struct strbuf author_ident = STRBUF_INIT; + const char *index_file, *reflog_msg; + struct object_id oid; + struct commit_list *parents = NULL; + struct stat statbuf; + struct commit *current_head = NULL; + struct commit_extra_header *extra = NULL; + struct strbuf err = STRBUF_INIT; + + if (argc == 2 && !strcmp(argv[1], "-h")) + usage_with_options(builtin_commit_usage, builtin_commit_options); + + status_init_config(&s, git_commit_config); + s.commit_template = 1; + status_format = STATUS_FORMAT_NONE; /* Ignore status.short */ + s.colopts = 0; + + if (get_oid("HEAD", &oid)) + current_head = NULL; + else { + current_head = lookup_commit_or_die(&oid, "HEAD"); + if (parse_commit(current_head)) + die(_("could not parse HEAD commit")); + } + verbose = -1; /* unspecified */ + argc = parse_and_validate_options(argc, argv, builtin_commit_options, + builtin_commit_usage, + prefix, current_head, &s); + if (verbose == -1) + verbose = (config_commit_verbose < 0) ? 0 : config_commit_verbose; + + if (dry_run) + return dry_run_commit(argc, argv, prefix, current_head, &s); + index_file = prepare_index(argc, argv, prefix, current_head, 0); + + /* Set up everything for writing the commit object. This includes + running hooks, writing the trees, and interacting with the user. */ + if (!prepare_to_commit(index_file, prefix, + current_head, &s, &author_ident)) { + rollback_index_files(); + return 1; + } + + /* Determine parents */ + reflog_msg = getenv("GIT_REFLOG_ACTION"); + if (!current_head) { + if (!reflog_msg) + reflog_msg = "commit (initial)"; + } else if (amend) { + if (!reflog_msg) + reflog_msg = "commit (amend)"; + parents = copy_commit_list(current_head->parents); + } else if (whence == FROM_MERGE) { + struct strbuf m = STRBUF_INIT; + FILE *fp; + int allow_fast_forward = 1; + struct commit_list **pptr = &parents; + + if (!reflog_msg) + reflog_msg = "commit (merge)"; + pptr = commit_list_append(current_head, pptr); + fp = xfopen(git_path_merge_head(the_repository), "r"); + while (strbuf_getline_lf(&m, fp) != EOF) { + struct commit *parent; + + parent = get_merge_parent(m.buf); + if (!parent) + die(_("Corrupt MERGE_HEAD file (%s)"), m.buf); + pptr = commit_list_append(parent, pptr); + } + fclose(fp); + strbuf_release(&m); + if (!stat(git_path_merge_mode(the_repository), &statbuf)) { + if (strbuf_read_file(&sb, git_path_merge_mode(the_repository), 0) < 0) + die_errno(_("could not read MERGE_MODE")); + if (!strcmp(sb.buf, "no-ff")) + allow_fast_forward = 0; + } + if (allow_fast_forward) + reduce_heads_replace(&parents); + } else { + if (!reflog_msg) + reflog_msg = (whence == FROM_CHERRY_PICK) + ? "commit (cherry-pick)" + : "commit"; + commit_list_insert(current_head, &parents); + } + + /* Finally, get the commit message */ + strbuf_reset(&sb); + if (strbuf_read_file(&sb, git_path_commit_editmsg(), 0) < 0) { + int saved_errno = errno; + rollback_index_files(); + die(_("could not read commit message: %s"), strerror(saved_errno)); + } + + cleanup_message(&sb, cleanup_mode, verbose); + + if (message_is_empty(&sb, cleanup_mode) && !allow_empty_message) { + rollback_index_files(); + fprintf(stderr, _("Aborting commit due to empty commit message.\n")); + exit(1); + } + if (template_untouched(&sb, template_file, cleanup_mode) && !allow_empty_message) { + rollback_index_files(); + fprintf(stderr, _("Aborting commit; you did not edit the message.\n")); + exit(1); + } + + if (amend) { + const char *exclude_gpgsig[2] = { "gpgsig", NULL }; + extra = read_commit_extra_headers(current_head, exclude_gpgsig); + } else { + struct commit_extra_header **tail = &extra; + append_merge_tag_headers(parents, &tail); + } + + if (commit_tree_extended(sb.buf, sb.len, &active_cache_tree->oid, + parents, &oid, author_ident.buf, sign_commit, + extra)) { + rollback_index_files(); + die(_("failed to write commit object")); + } + strbuf_release(&author_ident); + free_commit_extra_headers(extra); + + if (update_head_with_reflog(current_head, &oid, reflog_msg, &sb, + &err)) { + rollback_index_files(); + die("%s", err.buf); + } + + sequencer_post_commit_cleanup(the_repository, 0); + unlink(git_path_merge_head(the_repository)); + unlink(git_path_merge_msg(the_repository)); + unlink(git_path_merge_mode(the_repository)); + unlink(git_path_squash_msg(the_repository)); + + if (commit_index_files()) + die(_("repository has been updated, but unable to write\n" + "new_index file. Check that disk is not full and quota is\n" + "not exceeded, and then \"git restore --staged :/\" to recover.")); + + if (git_env_bool(GIT_TEST_COMMIT_GRAPH, 0) && + write_commit_graph_reachable(the_repository->objects->odb, 0, NULL)) + return 1; + + repo_rerere(the_repository, 0); + run_command_v_opt(argv_gc_auto, RUN_GIT_CMD); + run_commit_hook(use_editor, get_index_file(), "post-commit", NULL); + if (amend && !no_post_rewrite) { + commit_post_rewrite(the_repository, current_head, &oid); + } + if (!quiet) { + unsigned int flags = 0; + + if (!current_head) + flags |= SUMMARY_INITIAL_COMMIT; + if (author_date_is_interesting()) + flags |= SUMMARY_SHOW_AUTHOR_DATE; + print_commit_summary(the_repository, prefix, + &oid, flags); + } + + UNLEAK(err); + UNLEAK(sb); + return 0; +} |