Merge branch 'jk/maint-commit-check-committer-early'
authorJunio C Hamano <gitster@pobox.com>
Tue, 24 Jul 2012 21:05:18 +0000 (14:05 -0700)
committerJunio C Hamano <gitster@pobox.com>
Tue, 24 Jul 2012 21:05:18 +0000 (14:05 -0700)
"git commit --amend" let the user edit the log message and then died
when the human-readable committer name was given insufficiently by
getpwent(3).

* jk/maint-commit-check-committer-early:
commit: check committer identity more strictly

1  2 
builtin/commit.c
diff --combined builtin/commit.c
index 95eeab1d5146628277b0ba2c4e4bc7a6f77f3a4a,f9088d325f7ec225c870af438611375542b9e782..20cef95d600aeb15b716793beb5fb2534cc2b682
@@@ -27,7 -27,6 +27,7 @@@
  #include "quote.h"
  #include "submodule.h"
  #include "gpg-interface.h"
 +#include "column.h"
  
  static const char * const builtin_commit_usage[] = {
        "git commit [options] [--] <filepattern>...",
@@@ -110,11 -109,13 +110,11 @@@ static int show_ignored_in_status
  static const char *only_include_assumed;
  static struct strbuf message = STRBUF_INIT;
  
 -static int null_termination;
  static enum {
        STATUS_FORMAT_LONG,
        STATUS_FORMAT_SHORT,
        STATUS_FORMAT_PORCELAIN
  } status_format = STATUS_FORMAT_LONG;
 -static int status_show_branch;
  
  static int opt_parse_m(const struct option *opt, const char *arg, int unset)
  {
        return 0;
  }
  
 -static struct option builtin_commit_options[] = {
 -      OPT__QUIET(&quiet, "suppress summary after successful commit"),
 -      OPT__VERBOSE(&verbose, "show diff in commit message template"),
 -
 -      OPT_GROUP("Commit message options"),
 -      OPT_FILENAME('F', "file", &logfile, "read message from file"),
 -      OPT_STRING(0, "author", &force_author, "author", "override author for commit"),
 -      OPT_STRING(0, "date", &force_date, "date", "override date for commit"),
 -      OPT_CALLBACK('m', "message", &message, "message", "commit message", opt_parse_m),
 -      OPT_STRING('c', "reedit-message", &edit_message, "commit", "reuse and edit message from specified commit"),
 -      OPT_STRING('C', "reuse-message", &use_message, "commit", "reuse message from specified commit"),
 -      OPT_STRING(0, "fixup", &fixup_message, "commit", "use autosquash formatted message to fixup specified commit"),
 -      OPT_STRING(0, "squash", &squash_message, "commit", "use autosquash formatted message to squash specified commit"),
 -      OPT_BOOLEAN(0, "reset-author", &renew_authorship, "the commit is authored by me now (used with -C/-c/--amend)"),
 -      OPT_BOOLEAN('s', "signoff", &signoff, "add Signed-off-by:"),
 -      OPT_FILENAME('t', "template", &template_file, "use specified template file"),
 -      OPT_BOOL('e', "edit", &edit_flag, "force edit of commit"),
 -      OPT_STRING(0, "cleanup", &cleanup_arg, "default", "how to strip spaces and #comments from message"),
 -      OPT_BOOLEAN(0, "status", &include_status, "include status in commit message template"),
 -      { OPTION_STRING, 'S', "gpg-sign", &sign_commit, "key id",
 -        "GPG sign commit", PARSE_OPT_OPTARG, NULL, (intptr_t) "" },
 -      /* end commit message options */
 -
 -      OPT_GROUP("Commit contents options"),
 -      OPT_BOOLEAN('a', "all", &all, "commit all changed files"),
 -      OPT_BOOLEAN('i', "include", &also, "add specified files to index for commit"),
 -      OPT_BOOLEAN(0, "interactive", &interactive, "interactively add files"),
 -      OPT_BOOLEAN('p', "patch", &patch_interactive, "interactively add changes"),
 -      OPT_BOOLEAN('o', "only", &only, "commit only specified files"),
 -      OPT_BOOLEAN('n', "no-verify", &no_verify, "bypass pre-commit hook"),
 -      OPT_BOOLEAN(0, "dry-run", &dry_run, "show what would be committed"),
 -      OPT_SET_INT(0, "short", &status_format, "show status concisely",
 -                  STATUS_FORMAT_SHORT),
 -      OPT_BOOLEAN(0, "branch", &status_show_branch, "show branch information"),
 -      OPT_SET_INT(0, "porcelain", &status_format,
 -                  "machine-readable output", STATUS_FORMAT_PORCELAIN),
 -      OPT_BOOLEAN('z', "null", &null_termination,
 -                  "terminate entries with NUL"),
 -      OPT_BOOLEAN(0, "amend", &amend, "amend previous commit"),
 -      OPT_BOOLEAN(0, "no-post-rewrite", &no_post_rewrite, "bypass post-rewrite hook"),
 -      { OPTION_STRING, 'u', "untracked-files", &untracked_files_arg, "mode", "show untracked files, optional modes: all, normal, no. (Default: all)", PARSE_OPT_OPTARG, NULL, (intptr_t)"all" },
 -      /* end commit contents options */
 -
 -      { OPTION_BOOLEAN, 0, "allow-empty", &allow_empty, NULL,
 -        "ok to record an empty change",
 -        PARSE_OPT_NOARG | PARSE_OPT_HIDDEN },
 -      { OPTION_BOOLEAN, 0, "allow-empty-message", &allow_empty_message, NULL,
 -        "ok to record a change with an empty message",
 -        PARSE_OPT_NOARG | PARSE_OPT_HIDDEN },
 -
 -      OPT_END()
 -};
 -
  static void determine_whence(struct wt_status *s)
  {
        if (file_exists(git_path("MERGE_HEAD")))
                s->whence = whence;
  }
  
 -static const char *whence_s(void)
 -{
 -      const char *s = "";
 -
 -      switch (whence) {
 -      case FROM_COMMIT:
 -              break;
 -      case FROM_MERGE:
 -              s = _("merge");
 -              break;
 -      case FROM_CHERRY_PICK:
 -              s = _("cherry-pick");
 -              break;
 -      }
 -
 -      return s;
 -}
 -
  static void rollback_index_files(void)
  {
        switch (commit_style) {
@@@ -184,9 -256,6 +184,9 @@@ static int list_paths(struct string_lis
        int i;
        char *m;
  
 +      if (!pattern)
 +              return 0;
 +
        for (i = 0; pattern[i]; i++)
                ;
        m = xcalloc(1, i);
@@@ -331,7 -400,7 +331,7 @@@ static char *prepare_index(int argc, co
                fd = 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(1);
 +              update_main_cache_tree(WRITE_TREE_SILENT);
                if (write_cache(fd, active_cache, active_nr) ||
                    close_lock_file(&index_lock))
                        die(_("unable to write new_index file"));
         * and create commit from the_index.
         * We still need to refresh the index here.
         */
 -      if (!pathspec || !*pathspec) {
 +      if (!only && (!pathspec || !*pathspec)) {
                fd = hold_locked_index(&index_lock, 1);
                refresh_cache_or_die(refresh_flags);
                if (active_cache_changed) {
 -                      update_main_cache_tree(1);
 +                      update_main_cache_tree(WRITE_TREE_SILENT);
                        if (write_cache(fd, active_cache, active_nr) ||
                            commit_locked_index(&index_lock))
                                die(_("unable to write new_index file"));
         */
        commit_style = COMMIT_PARTIAL;
  
 -      if (whence != FROM_COMMIT)
 -              die(_("cannot do a partial commit during a %s."), whence_s());
 +      if (whence != FROM_COMMIT) {
 +              if (whence == FROM_MERGE)
 +                      die(_("cannot do a partial commit during a merge."));
 +              else if (whence == FROM_CHERRY_PICK)
 +                      die(_("cannot do a partial commit during a cherry-pick."));
 +      }
  
        memset(&partial, 0, sizeof(partial));
        partial.strdup_strings = 1;
@@@ -448,10 -513,10 +448,10 @@@ static int run_status(FILE *fp, const c
  
        switch (status_format) {
        case STATUS_FORMAT_SHORT:
 -              wt_shortstatus_print(s, null_termination, status_show_branch);
 +              wt_shortstatus_print(s);
                break;
        case STATUS_FORMAT_PORCELAIN:
 -              wt_porcelain_print(s, null_termination);
 +              wt_porcelain_print(s);
                break;
        case STATUS_FORMAT_LONG:
                wt_status_print(s);
@@@ -468,20 -533,9 +468,20 @@@ static int is_a_merge(const struct comm
  
  static const char sign_off_header[] = "Signed-off-by: ";
  
 +static void export_one(const char *var, const char *s, const char *e, int hack)
 +{
 +      struct strbuf buf = STRBUF_INIT;
 +      if (hack)
 +              strbuf_addch(&buf, hack);
 +      strbuf_addf(&buf, "%.*s", (int)(e - s), s);
 +      setenv(var, buf.buf, 1);
 +      strbuf_release(&buf);
 +}
 +
  static 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");
  
        if (force_date)
                date = force_date;
 -      strbuf_addstr(author_ident, fmt_ident(name, email, date,
 -                                            IDENT_ERROR_ON_NO_NAME));
 +      strbuf_addstr(author_ident, fmt_ident(name, email, date, IDENT_STRICT));
 +      if (!split_ident_line(&author, author_ident->buf, author_ident->len)) {
 +              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, '@');
 +      }
  }
  
  static int ends_rfc2822_footer(struct strbuf *sb)
@@@ -602,9 -652,6 +602,9 @@@ static int prepare_to_commit(const cha
        int ident_shown = 0;
        int clean_message_contents = (cleanup_mode != CLEANUP_NONE);
  
 +      /* This checks and barfs if author is badly specified */
 +      determine_author_info(author_ident);
 +
        if (!no_verify && run_hook(index_file, "pre-commit", NULL))
                return 0;
  
                hook_arg1 = "message";
        } else if (use_message) {
                buffer = strstr(use_message_buffer, "\n\n");
 -              if (!buffer || buffer[2] == '\0')
 +              if (!use_editor && (!buffer || buffer[2] == '\0'))
                        die(_("commit has empty message"));
                strbuf_add(&sb, buffer + 2, strlen(buffer + 2));
                hook_arg1 = "commit";
  
        strbuf_release(&sb);
  
 -      /* This checks and barfs if author is badly specified */
 -      determine_author_info(author_ident);
 -
        /* This checks if committer ident is explicitly given */
-       strbuf_addstr(&committer_ident, git_committer_info(0));
+       strbuf_addstr(&committer_ident, git_committer_info(IDENT_STRICT));
        if (use_editor && include_status) {
                char *ai_tmp, *ci_tmp;
                if (whence != FROM_COMMIT)
                        status_printf_ln(s, GIT_COLOR_NORMAL,
 -                              _("\n"
 -                              "It looks like you may be committing a %s.\n"
 -                              "If this is not correct, please remove the file\n"
 -                              "       %s\n"
 -                              "and try again.\n"
 -                              ""),
 -                              whence_s(),
 +                          whence == FROM_MERGE
 +                              ? _("\n"
 +                                      "It looks like you may be committing a merge.\n"
 +                                      "If this is not correct, please remove the file\n"
 +                                      "       %s\n"
 +                                      "and try again.\n")
 +                              : _("\n"
 +                                      "It looks like you may be committing a cherry-pick.\n"
 +                                      "If this is not correct, please remove the file\n"
 +                                      "       %s\n"
 +                                      "and try again.\n"),
                                git_path(whence == FROM_MERGE
                                         ? "MERGE_HEAD"
                                         : "CHERRY_PICK_HEAD"));
  
                fprintf(s->fp, "\n");
 -              status_printf(s, GIT_COLOR_NORMAL,
 -                      _("Please enter the commit message for your changes."));
                if (cleanup_mode == CLEANUP_ALL)
 -                      status_printf_more(s, GIT_COLOR_NORMAL,
 -                              _(" Lines starting\n"
 -                              "with '#' will be ignored, and an empty"
 +                      status_printf(s, GIT_COLOR_NORMAL,
 +                              _("Please enter the commit message for your changes."
 +                              " Lines starting\nwith '#' will be ignored, and an empty"
                                " message aborts the commit.\n"));
                else /* CLEANUP_SPACE, that is. */
 -                      status_printf_more(s, GIT_COLOR_NORMAL,
 -                              _(" Lines starting\n"
 +                      status_printf(s, GIT_COLOR_NORMAL,
 +                              _("Please enter the commit message for your changes."
 +                              " Lines starting\n"
                                "with '#' will be kept; you may remove them"
                                " yourself if you want to.\n"
                                "An empty message aborts the commit.\n"));
        return 1;
  }
  
 -/*
 - * Find out if the message in the strbuf contains only whitespace and
 - * Signed-off-by lines.
 - */
 -static int message_is_empty(struct strbuf *sb)
 +static int rest_is_empty(struct strbuf *sb, int start)
  {
 -      struct strbuf tmpl = STRBUF_INIT;
 +      int i, eol;
        const char *nl;
 -      int eol, i, start = 0;
 -
 -      if (cleanup_mode == CLEANUP_NONE && sb->len)
 -              return 0;
 -
 -      /* See if the template is just a prefix of the message. */
 -      if (template_file && strbuf_read_file(&tmpl, template_file, 0) > 0) {
 -              stripspace(&tmpl, cleanup_mode == CLEANUP_ALL);
 -              if (start + tmpl.len <= sb->len &&
 -                  memcmp(tmpl.buf, sb->buf + start, tmpl.len) == 0)
 -                      start += tmpl.len;
 -      }
 -      strbuf_release(&tmpl);
  
        /* Check if the rest is just whitespace and Signed-of-by's. */
        for (i = start; i < sb->len; i++) {
        return 1;
  }
  
 +/*
 + * Find out if the message in the strbuf contains only whitespace and
 + * Signed-off-by lines.
 + */
 +static int message_is_empty(struct strbuf *sb)
 +{
 +      if (cleanup_mode == CLEANUP_NONE && sb->len)
 +              return 0;
 +      return rest_is_empty(sb, 0);
 +}
 +
 +/*
 + * See if the user edited the message in the editor or left what
 + * was in the template intact
 + */
 +static int template_untouched(struct strbuf *sb)
 +{
 +      struct strbuf tmpl = STRBUF_INIT;
 +      char *start;
 +
 +      if (cleanup_mode == CLEANUP_NONE && sb->len)
 +              return 0;
 +
 +      if (!template_file || strbuf_read_file(&tmpl, template_file, 0) <= 0)
 +              return 0;
 +
 +      stripspace(&tmpl, cleanup_mode == CLEANUP_ALL);
 +      start = (char *)skip_prefix(sb->buf, tmpl.buf);
 +      if (!start)
 +              start = sb->buf;
 +      strbuf_release(&tmpl);
 +      return rest_is_empty(sb, start - sb->buf);
 +}
 +
  static const char *find_author_by_nickname(const char *name)
  {
        struct rev_info revs;
@@@ -983,7 -1013,6 +983,7 @@@ static const char *read_commit_message(
  }
  
  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,
  {
        int f = 0;
  
 -      argc = parse_options(argc, argv, prefix, builtin_commit_options, usage,
 -                           0);
 +      argc = parse_options(argc, argv, prefix, options, usage, 0);
  
        if (force_author && !strchr(force_author, '>'))
                force_author = find_author_by_nickname(force_author);
        /* Sanity check options */
        if (amend && !current_head)
                die(_("You have nothing to amend."));
 -      if (amend && whence != FROM_COMMIT)
 -              die(_("You are in the middle of a %s -- cannot amend."), whence_s());
 +      if (amend && whence != FROM_COMMIT) {
 +              if (whence == FROM_MERGE)
 +                      die(_("You are in the middle of a merge -- cannot amend."));
 +              else if (whence == FROM_CHERRY_PICK)
 +                      die(_("You are in the middle of a cherry-pick -- cannot amend."));
 +      }
        if (fixup_message && squash_message)
                die(_("Options --squash and --fixup cannot be used together"));
        if (use_message)
                die(_("Only one of -c/-C/-F/--fixup can be used."));
        if (message.len && f > 0)
                die((_("Option -m cannot be combined with -c/-C/-F/--fixup.")));
 +      if (f || message.len)
 +              template_file = NULL;
        if (edit_message)
                use_message = edit_message;
        if (amend && !use_message && !fixup_message)
        if (all && argc > 0)
                die(_("Paths with -a does not make sense."));
  
 -      if (null_termination && status_format == STATUS_FORMAT_LONG)
 +      if (s->null_termination && status_format == STATUS_FORMAT_LONG)
                status_format = STATUS_FORMAT_PORCELAIN;
        if (status_format != STATUS_FORMAT_LONG)
                dry_run = 1;
@@@ -1121,8 -1145,6 +1121,8 @@@ static int git_status_config(const cha
  {
        struct wt_status *s = cb;
  
 +      if (!prefixcmp(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);
  
  int cmd_status(int argc, const char **argv, const char *prefix)
  {
 -      struct wt_status s;
 +      static struct wt_status s;
        int fd;
        unsigned char sha1[20];
        static struct option builtin_status_options[] = {
                OPT__VERBOSE(&verbose, "be verbose"),
                OPT_SET_INT('s', "short", &status_format,
                            "show status concisely", STATUS_FORMAT_SHORT),
 -              OPT_BOOLEAN('b', "branch", &status_show_branch,
 +              OPT_BOOLEAN('b', "branch", &s.show_branch,
                            "show branch information"),
                OPT_SET_INT(0, "porcelain", &status_format,
                            "machine-readable output",
                            STATUS_FORMAT_PORCELAIN),
 -              OPT_BOOLEAN('z', "null", &null_termination,
 +              OPT_BOOLEAN('z', "null", &s.null_termination,
                            "terminate entries with NUL"),
                { OPTION_STRING, 'u', "untracked-files", &untracked_files_arg,
                  "mode",
                { OPTION_STRING, 0, "ignore-submodules", &ignore_submodule_arg, "when",
                  "ignore changes to submodules, optional when: all, dirty, untracked. (Default: all)",
                  PARSE_OPT_OPTARG, NULL, (intptr_t)"all" },
 +              OPT_COLUMN(0, "column", &s.colopts, "list untracked files in columns"),
                OPT_END(),
        };
  
        argc = parse_options(argc, argv, prefix,
                             builtin_status_options,
                             builtin_status_usage, 0);
 +      finalize_colopts(&s.colopts, -1);
  
 -      if (null_termination && status_format == STATUS_FORMAT_LONG)
 +      if (s.null_termination && status_format == STATUS_FORMAT_LONG)
                status_format = STATUS_FORMAT_PORCELAIN;
  
        handle_untracked_files_arg(&s);
  
        switch (status_format) {
        case STATUS_FORMAT_SHORT:
 -              wt_shortstatus_print(&s, null_termination, status_show_branch);
 +              wt_shortstatus_print(&s);
                break;
        case STATUS_FORMAT_PORCELAIN:
 -              wt_porcelain_print(&s, null_termination);
 +              wt_porcelain_print(&s);
                break;
        case STATUS_FORMAT_LONG:
                s.verbose = verbose;
@@@ -1367,60 -1387,6 +1367,60 @@@ static int run_rewrite_hook(const unsig
  
  int cmd_commit(int argc, const char **argv, const char *prefix)
  {
 +      static struct wt_status s;
 +      static struct option builtin_commit_options[] = {
 +              OPT__QUIET(&quiet, "suppress summary after successful commit"),
 +              OPT__VERBOSE(&verbose, "show diff in commit message template"),
 +
 +              OPT_GROUP("Commit message options"),
 +              OPT_FILENAME('F', "file", &logfile, "read message from file"),
 +              OPT_STRING(0, "author", &force_author, "author", "override author for commit"),
 +              OPT_STRING(0, "date", &force_date, "date", "override date for commit"),
 +              OPT_CALLBACK('m', "message", &message, "message", "commit message", opt_parse_m),
 +              OPT_STRING('c', "reedit-message", &edit_message, "commit", "reuse and edit message from specified commit"),
 +              OPT_STRING('C', "reuse-message", &use_message, "commit", "reuse message from specified commit"),
 +              OPT_STRING(0, "fixup", &fixup_message, "commit", "use autosquash formatted message to fixup specified commit"),
 +              OPT_STRING(0, "squash", &squash_message, "commit", "use autosquash formatted message to squash specified commit"),
 +              OPT_BOOLEAN(0, "reset-author", &renew_authorship, "the commit is authored by me now (used with -C/-c/--amend)"),
 +              OPT_BOOLEAN('s', "signoff", &signoff, "add Signed-off-by:"),
 +              OPT_FILENAME('t', "template", &template_file, "use specified template file"),
 +              OPT_BOOL('e', "edit", &edit_flag, "force edit of commit"),
 +              OPT_STRING(0, "cleanup", &cleanup_arg, "default", "how to strip spaces and #comments from message"),
 +              OPT_BOOLEAN(0, "status", &include_status, "include status in commit message template"),
 +              { OPTION_STRING, 'S', "gpg-sign", &sign_commit, "key id",
 +                "GPG sign commit", PARSE_OPT_OPTARG, NULL, (intptr_t) "" },
 +              /* end commit message options */
 +
 +              OPT_GROUP("Commit contents options"),
 +              OPT_BOOLEAN('a', "all", &all, "commit all changed files"),
 +              OPT_BOOLEAN('i', "include", &also, "add specified files to index for commit"),
 +              OPT_BOOLEAN(0, "interactive", &interactive, "interactively add files"),
 +              OPT_BOOLEAN('p', "patch", &patch_interactive, "interactively add changes"),
 +              OPT_BOOLEAN('o', "only", &only, "commit only specified files"),
 +              OPT_BOOLEAN('n', "no-verify", &no_verify, "bypass pre-commit hook"),
 +              OPT_BOOLEAN(0, "dry-run", &dry_run, "show what would be committed"),
 +              OPT_SET_INT(0, "short", &status_format, "show status concisely",
 +                          STATUS_FORMAT_SHORT),
 +              OPT_BOOLEAN(0, "branch", &s.show_branch, "show branch information"),
 +              OPT_SET_INT(0, "porcelain", &status_format,
 +                          "machine-readable output", STATUS_FORMAT_PORCELAIN),
 +              OPT_BOOLEAN('z', "null", &s.null_termination,
 +                          "terminate entries with NUL"),
 +              OPT_BOOLEAN(0, "amend", &amend, "amend previous commit"),
 +              OPT_BOOLEAN(0, "no-post-rewrite", &no_post_rewrite, "bypass post-rewrite hook"),
 +              { OPTION_STRING, 'u', "untracked-files", &untracked_files_arg, "mode", "show untracked files, optional modes: all, normal, no. (Default: all)", PARSE_OPT_OPTARG, NULL, (intptr_t)"all" },
 +              /* end commit contents options */
 +
 +              { OPTION_BOOLEAN, 0, "allow-empty", &allow_empty, NULL,
 +                "ok to record an empty change",
 +                PARSE_OPT_NOARG | PARSE_OPT_HIDDEN },
 +              { OPTION_BOOLEAN, 0, "allow-empty-message", &allow_empty_message, NULL,
 +                "ok to record a change with an empty message",
 +                PARSE_OPT_NOARG | PARSE_OPT_HIDDEN },
 +
 +              OPT_END()
 +      };
 +
        struct strbuf sb = STRBUF_INIT;
        struct strbuf author_ident = STRBUF_INIT;
        const char *index_file, *reflog_msg;
        struct commit_list *parents = NULL, **pptr = &parents;
        struct stat statbuf;
        int allow_fast_forward = 1;
 -      struct wt_status s;
        struct commit *current_head = NULL;
        struct commit_extra_header *extra = NULL;
  
        wt_status_prepare(&s);
        git_config(git_commit_config, &s);
        determine_whence(&s);
 +      s.colopts = 0;
  
        if (get_sha1("HEAD", sha1))
                current_head = NULL;
                if (!current_head || parse_commit(current_head))
                        die(_("could not parse HEAD commit"));
        }
 -      argc = parse_and_validate_options(argc, argv, builtin_commit_usage,
 +      argc = parse_and_validate_options(argc, argv, builtin_commit_options,
 +                                        builtin_commit_usage,
                                          prefix, current_head, &s);
        if (dry_run)
                return dry_run_commit(argc, argv, prefix, current_head, &s);
  
        if (cleanup_mode != CLEANUP_NONE)
                stripspace(&sb, cleanup_mode == CLEANUP_ALL);
 +      if (template_untouched(&sb) && !allow_empty_message) {
 +              rollback_index_files();
 +              fprintf(stderr, _("Aborting commit; you did not edit the message.\n"));
 +              exit(1);
 +      }
        if (message_is_empty(&sb) && !allow_empty_message) {
                rollback_index_files();
                fprintf(stderr, _("Aborting commit due to empty commit message.\n"));