4 * Copyright (c) 2007 Kristian Høgsberg <krh@redhat.com>
5 * Based on git-commit.sh by Junio C Hamano and Linus Torvalds
9 #include "cache-tree.h"
16 #include "wt-status.h"
17 #include "run-command.h"
22 #include "parse-options.h"
23 #include "path-list.h"
24 #include "unpack-trees.h"
26 static const char * const builtin_commit_usage
[] = {
27 "git-commit [options] [--] <filepattern>...",
31 static const char * const builtin_status_usage
[] = {
32 "git-status [options] [--] <filepattern>...",
36 static unsigned char head_sha1
[20], merge_head_sha1
[20];
37 static char *use_message_buffer
;
38 static const char commit_editmsg
[] = "COMMIT_EDITMSG";
39 static struct lock_file index_lock
; /* real index */
40 static struct lock_file false_lock
; /* used only for partial commits */
47 static char *logfile
, *force_author
, *template_file
;
48 static char *edit_message
, *use_message
;
49 static int all
, edit_flag
, also
, interactive
, only
, amend
, signoff
;
50 static int quiet
, verbose
, untracked_files
, no_verify
, allow_empty
;
52 * The default commit message cleanup mode will remove the lines
53 * beginning with # (shell comments) and leading and trailing
54 * whitespaces (empty lines or containing only whitespaces)
55 * if editor is used, and only the whitespaces if the message
56 * is specified explicitly.
63 static char *cleanup_arg
;
65 static int use_editor
= 1, initial_commit
, in_merge
;
66 const char *only_include_assumed
;
67 struct strbuf message
;
69 static int opt_parse_m(const struct option
*opt
, const char *arg
, int unset
)
71 struct strbuf
*buf
= opt
->value
;
73 strbuf_setlen(buf
, 0);
75 strbuf_addstr(buf
, arg
);
76 strbuf_addch(buf
, '\n');
77 strbuf_addch(buf
, '\n');
82 static struct option builtin_commit_options
[] = {
84 OPT__VERBOSE(&verbose
),
85 OPT_GROUP("Commit message options"),
87 OPT_STRING('F', "file", &logfile
, "FILE", "read log from file"),
88 OPT_STRING(0, "author", &force_author
, "AUTHOR", "override author for commit"),
89 OPT_CALLBACK('m', "message", &message
, "MESSAGE", "specify commit message", opt_parse_m
),
90 OPT_STRING('c', "reedit-message", &edit_message
, "COMMIT", "reuse and edit message from specified commit "),
91 OPT_STRING('C', "reuse-message", &use_message
, "COMMIT", "reuse message from specified commit"),
92 OPT_BOOLEAN('s', "signoff", &signoff
, "add Signed-off-by: header"),
93 OPT_STRING('t', "template", &template_file
, "FILE", "use specified template file"),
94 OPT_BOOLEAN('e', "edit", &edit_flag
, "force edit of commit"),
96 OPT_GROUP("Commit contents options"),
97 OPT_BOOLEAN('a', "all", &all
, "commit all changed files"),
98 OPT_BOOLEAN('i', "include", &also
, "add specified files to index for commit"),
99 OPT_BOOLEAN(0, "interactive", &interactive
, "interactively add files"),
100 OPT_BOOLEAN('o', "only", &only
, ""),
101 OPT_BOOLEAN('n', "no-verify", &no_verify
, "bypass pre-commit hook"),
102 OPT_BOOLEAN(0, "amend", &amend
, "amend previous commit"),
103 OPT_BOOLEAN(0, "untracked-files", &untracked_files
, "show all untracked files"),
104 OPT_BOOLEAN(0, "allow-empty", &allow_empty
, "ok to record an empty change"),
105 OPT_STRING(0, "cleanup", &cleanup_arg
, "default", "how to strip spaces and #comments from message"),
110 static void rollback_index_files(void)
112 switch (commit_style
) {
114 break; /* nothing to do */
116 rollback_lock_file(&index_lock
);
119 rollback_lock_file(&index_lock
);
120 rollback_lock_file(&false_lock
);
125 static void commit_index_files(void)
127 switch (commit_style
) {
129 break; /* nothing to do */
131 commit_lock_file(&index_lock
);
134 commit_lock_file(&index_lock
);
135 rollback_lock_file(&false_lock
);
141 * Take a union of paths in the index and the named tree (typically, "HEAD"),
142 * and return the paths that match the given pattern in list.
144 static int list_paths(struct path_list
*list
, const char *with_tree
,
145 const char *prefix
, const char **pattern
)
150 for (i
= 0; pattern
[i
]; i
++)
155 overlay_tree_on_cache(with_tree
, prefix
);
157 for (i
= 0; i
< active_nr
; i
++) {
158 struct cache_entry
*ce
= active_cache
[i
];
159 if (!pathspec_match(pattern
, m
, ce
->name
, 0))
161 path_list_insert(ce
->name
, list
);
164 return report_path_error(m
, pattern
, prefix
? strlen(prefix
) : 0);
167 static void add_remove_files(struct path_list
*list
)
170 for (i
= 0; i
< list
->nr
; i
++) {
171 struct path_list_item
*p
= &(list
->items
[i
]);
172 if (file_exists(p
->path
))
173 add_file_to_cache(p
->path
, 0);
175 remove_file_from_cache(p
->path
);
179 static void create_base_index(void)
182 struct unpack_trees_options opts
;
185 if (initial_commit
) {
190 memset(&opts
, 0, sizeof(opts
));
195 opts
.fn
= oneway_merge
;
196 tree
= parse_tree_indirect(head_sha1
);
198 die("failed to unpack HEAD tree object");
200 init_tree_desc(&t
, tree
->buffer
, tree
->size
);
201 unpack_trees(1, &t
, &opts
);
204 static char *prepare_index(int argc
, const char **argv
, const char *prefix
)
207 struct path_list partial
;
208 const char **pathspec
= NULL
;
211 interactive_add(argc
, argv
, prefix
);
212 commit_style
= COMMIT_AS_IS
;
213 return get_index_file();
216 if (read_cache() < 0)
217 die("index file corrupt");
220 pathspec
= get_pathspec(prefix
, argv
);
223 * Non partial, non as-is commit.
225 * (1) get the real index;
226 * (2) update the_index as necessary;
227 * (3) write the_index out to the real index (still locked);
228 * (4) return the name of the locked index file.
230 * The caller should run hooks on the locked real index, and
231 * (A) if all goes well, commit the real index;
232 * (B) on failure, rollback the real index.
234 if (all
|| (also
&& pathspec
&& *pathspec
)) {
235 int fd
= hold_locked_index(&index_lock
, 1);
236 add_files_to_cache(0, also
? prefix
: NULL
, pathspec
);
237 refresh_cache(REFRESH_QUIET
);
238 if (write_cache(fd
, active_cache
, active_nr
) || close(fd
))
239 die("unable to write new_index file");
240 commit_style
= COMMIT_NORMAL
;
241 return index_lock
.filename
;
247 * (1) return the name of the real index file.
249 * The caller should run hooks on the real index, and run
250 * hooks on the real index, and create commit from the_index.
251 * We still need to refresh the index here.
253 if (!pathspec
|| !*pathspec
) {
254 fd
= hold_locked_index(&index_lock
, 1);
255 refresh_cache(REFRESH_QUIET
);
256 if (write_cache(fd
, active_cache
, active_nr
) ||
257 close(fd
) || commit_locked_index(&index_lock
))
258 die("unable to write new_index file");
259 commit_style
= COMMIT_AS_IS
;
260 return get_index_file();
266 * (0) find the set of affected paths;
267 * (1) get lock on the real index file;
268 * (2) update the_index with the given paths;
269 * (3) write the_index out to the real index (still locked);
270 * (4) get lock on the false index file;
271 * (5) reset the_index from HEAD;
272 * (6) update the_index the same way as (2);
273 * (7) write the_index out to the false index file;
274 * (8) return the name of the false index file (still locked);
276 * The caller should run hooks on the locked false index, and
277 * create commit from it. Then
278 * (A) if all goes well, commit the real index;
279 * (B) on failure, rollback the real index;
280 * In either case, rollback the false index.
282 commit_style
= COMMIT_PARTIAL
;
284 if (file_exists(git_path("MERGE_HEAD")))
285 die("cannot do a partial commit during a merge.");
287 memset(&partial
, 0, sizeof(partial
));
288 partial
.strdup_paths
= 1;
289 if (list_paths(&partial
, initial_commit
? NULL
: "HEAD", prefix
, pathspec
))
293 if (read_cache() < 0)
294 die("cannot read the index");
296 fd
= hold_locked_index(&index_lock
, 1);
297 add_remove_files(&partial
);
298 refresh_cache(REFRESH_QUIET
);
299 if (write_cache(fd
, active_cache
, active_nr
) || close(fd
))
300 die("unable to write new_index file");
302 fd
= hold_lock_file_for_update(&false_lock
,
303 git_path("next-index-%d", getpid()), 1);
306 add_remove_files(&partial
);
307 refresh_cache(REFRESH_QUIET
);
309 if (write_cache(fd
, active_cache
, active_nr
) || close(fd
))
310 die("unable to write temporary index file");
311 return false_lock
.filename
;
314 static int run_status(FILE *fp
, const char *index_file
, const char *prefix
, int nowarn
)
318 wt_status_prepare(&s
);
319 if (wt_status_relative_paths
)
324 s
.reference
= "HEAD^1";
327 s
.untracked
= untracked_files
;
328 s
.index_file
= index_file
;
337 static const char sign_off_header
[] = "Signed-off-by: ";
339 static int prepare_log_message(const char *index_file
, const char *prefix
)
342 int commitable
, saved_color_setting
;
349 strbuf_addbuf(&sb
, &message
);
350 } else if (logfile
&& !strcmp(logfile
, "-")) {
352 fprintf(stderr
, "(reading log message from standard input)\n");
353 if (strbuf_read(&sb
, 0, 0) < 0)
354 die("could not read log from standard input");
355 } else if (logfile
) {
356 if (strbuf_read_file(&sb
, logfile
, 0) < 0)
357 die("could not read log file '%s': %s",
358 logfile
, strerror(errno
));
359 } else if (use_message
) {
360 buffer
= strstr(use_message_buffer
, "\n\n");
361 if (!buffer
|| buffer
[2] == '\0')
362 die("commit has empty message");
363 strbuf_add(&sb
, buffer
+ 2, strlen(buffer
+ 2));
364 } else if (!stat(git_path("MERGE_MSG"), &statbuf
)) {
365 if (strbuf_read_file(&sb
, git_path("MERGE_MSG"), 0) < 0)
366 die("could not read MERGE_MSG: %s", strerror(errno
));
367 } else if (!stat(git_path("SQUASH_MSG"), &statbuf
)) {
368 if (strbuf_read_file(&sb
, git_path("SQUASH_MSG"), 0) < 0)
369 die("could not read SQUASH_MSG: %s", strerror(errno
));
370 } else if (template_file
&& !stat(template_file
, &statbuf
)) {
371 if (strbuf_read_file(&sb
, template_file
, 0) < 0)
372 die("could not read %s: %s",
373 template_file
, strerror(errno
));
376 fp
= fopen(git_path(commit_editmsg
), "w");
378 die("could not open %s", git_path(commit_editmsg
));
380 if (cleanup_mode
!= CLEANUP_NONE
)
387 strbuf_init(&sob
, 0);
388 strbuf_addstr(&sob
, sign_off_header
);
389 strbuf_addstr(&sob
, fmt_name(getenv("GIT_COMMITTER_NAME"),
390 getenv("GIT_COMMITTER_EMAIL")));
391 strbuf_addch(&sob
, '\n');
392 for (i
= sb
.len
- 1; i
> 0 && sb
.buf
[i
- 1] != '\n'; i
--)
394 if (prefixcmp(sb
.buf
+ i
, sob
.buf
)) {
395 if (prefixcmp(sb
.buf
+ i
, sign_off_header
))
396 strbuf_addch(&sb
, '\n');
397 strbuf_addbuf(&sb
, &sob
);
399 strbuf_release(&sob
);
402 if (fwrite(sb
.buf
, 1, sb
.len
, fp
) < sb
.len
)
403 die("could not write commit template: %s", strerror(errno
));
409 unsigned char sha1
[20];
410 const char *parent
= "HEAD";
414 if (!active_nr
&& read_cache() < 0)
415 die("Cannot read index");
420 if (get_sha1(parent
, sha1
))
423 init_revisions(&rev
, "");
425 setup_revisions(0, NULL
, &rev
, parent
);
426 DIFF_OPT_SET(&rev
.diffopt
, QUIET
);
427 DIFF_OPT_SET(&rev
.diffopt
, EXIT_WITH_STATUS
);
428 run_diff_index(&rev
, 1 /* cached */);
430 return !!DIFF_OPT_TST(&rev
.diffopt
, HAS_CHANGES
);
436 "# It looks like you may be committing a MERGE.\n"
437 "# If this is not correct, please remove the file\n"
441 git_path("MERGE_HEAD"));
445 "# Please enter the commit message for your changes.\n"
446 "# (Comment lines starting with '#' will ");
447 if (cleanup_mode
== CLEANUP_ALL
)
448 fprintf(fp
, "not be included)\n");
449 else /* CLEANUP_SPACE, that is. */
450 fprintf(fp
, "be kept.\n"
451 "# You can remove them yourself if you want to)\n");
452 if (only_include_assumed
)
453 fprintf(fp
, "# %s\n", only_include_assumed
);
455 saved_color_setting
= wt_status_use_color
;
456 wt_status_use_color
= 0;
457 commitable
= run_status(fp
, index_file
, prefix
, 1);
458 wt_status_use_color
= saved_color_setting
;
466 * Find out if the message starting at position 'start' in the strbuf
467 * contains only whitespace and Signed-off-by lines.
469 static int message_is_empty(struct strbuf
*sb
, int start
)
475 if (cleanup_mode
== CLEANUP_NONE
&& sb
->len
)
478 /* See if the template is just a prefix of the message. */
479 strbuf_init(&tmpl
, 0);
480 if (template_file
&& strbuf_read_file(&tmpl
, template_file
, 0) > 0) {
481 stripspace(&tmpl
, cleanup_mode
== CLEANUP_ALL
);
482 if (start
+ tmpl
.len
<= sb
->len
&&
483 memcmp(tmpl
.buf
, sb
->buf
+ start
, tmpl
.len
) == 0)
486 strbuf_release(&tmpl
);
488 /* Check if the rest is just whitespace and Signed-of-by's. */
489 for (i
= start
; i
< sb
->len
; i
++) {
490 nl
= memchr(sb
->buf
+ i
, '\n', sb
->len
- i
);
496 if (strlen(sign_off_header
) <= eol
- i
&&
497 !prefixcmp(sb
->buf
+ i
, sign_off_header
)) {
502 if (!isspace(sb
->buf
[i
++]))
509 static void determine_author_info(struct strbuf
*sb
)
511 char *name
, *email
, *date
;
513 name
= getenv("GIT_AUTHOR_NAME");
514 email
= getenv("GIT_AUTHOR_EMAIL");
515 date
= getenv("GIT_AUTHOR_DATE");
518 const char *a
, *lb
, *rb
, *eol
;
520 a
= strstr(use_message_buffer
, "\nauthor ");
522 die("invalid commit: %s", use_message
);
524 lb
= strstr(a
+ 8, " <");
525 rb
= strstr(a
+ 8, "> ");
526 eol
= strchr(a
+ 8, '\n');
527 if (!lb
|| !rb
|| !eol
)
528 die("invalid commit: %s", use_message
);
530 name
= xstrndup(a
+ 8, lb
- (a
+ 8));
531 email
= xstrndup(lb
+ 2, rb
- (lb
+ 2));
532 date
= xstrndup(rb
+ 2, eol
- (rb
+ 2));
536 const char *lb
= strstr(force_author
, " <");
537 const char *rb
= strchr(force_author
, '>');
540 die("malformed --author parameter");
541 name
= xstrndup(force_author
, lb
- force_author
);
542 email
= xstrndup(lb
+ 2, rb
- (lb
+ 2));
545 strbuf_addf(sb
, "author %s\n", fmt_ident(name
, email
, date
, IDENT_ERROR_ON_NO_NAME
));
548 static int parse_and_validate_options(int argc
, const char *argv
[],
549 const char * const usage
[])
553 argc
= parse_options(argc
, argv
, builtin_commit_options
, usage
, 0);
555 if (logfile
|| message
.len
|| use_message
)
560 if (get_sha1("HEAD", head_sha1
))
563 if (!get_sha1("MERGE_HEAD", merge_head_sha1
))
566 /* Sanity check options */
567 if (amend
&& initial_commit
)
568 die("You have nothing to amend.");
569 if (amend
&& in_merge
)
570 die("You are in the middle of a merge -- cannot amend.");
579 die("Only one of -c/-C/-F can be used.");
580 if (message
.len
&& f
> 0)
581 die("Option -m cannot be combined with -c/-C/-F.");
583 use_message
= edit_message
;
584 if (amend
&& !use_message
)
585 use_message
= "HEAD";
587 unsigned char sha1
[20];
588 static char utf8
[] = "UTF-8";
591 struct commit
*commit
;
593 if (get_sha1(use_message
, sha1
))
594 die("could not lookup commit %s", use_message
);
595 commit
= lookup_commit(sha1
);
596 if (!commit
|| parse_commit(commit
))
597 die("could not parse commit %s", use_message
);
599 enc
= strstr(commit
->buffer
, "\nencoding");
601 end
= strchr(enc
+ 10, '\n');
602 enc
= xstrndup(enc
+ 10, end
- (enc
+ 10));
606 out_enc
= git_commit_encoding
? git_commit_encoding
: utf8
;
608 if (strcmp(out_enc
, enc
))
610 reencode_string(commit
->buffer
, out_enc
, enc
);
613 * If we failed to reencode the buffer, just copy it
614 * byte for byte so the user can try to fix it up.
615 * This also handles the case where input and output
616 * encodings are identical.
618 if (use_message_buffer
== NULL
)
619 use_message_buffer
= xstrdup(commit
->buffer
);
624 if (!!also
+ !!only
+ !!all
+ !!interactive
> 1)
625 die("Only one of --include/--only/--all/--interactive can be used.");
626 if (argc
== 0 && (also
|| (only
&& !amend
)))
627 die("No paths with --include/--only does not make sense.");
628 if (argc
== 0 && only
&& amend
)
629 only_include_assumed
= "Clever... amending the last one with dirty index.";
630 if (argc
> 0 && !also
&& !only
) {
631 only_include_assumed
= "Explicit paths specified without -i nor -o; assuming --only paths...";
634 if (!cleanup_arg
|| !strcmp(cleanup_arg
, "default"))
635 cleanup_mode
= use_editor
? CLEANUP_ALL
: CLEANUP_SPACE
;
636 else if (!strcmp(cleanup_arg
, "verbatim"))
637 cleanup_mode
= CLEANUP_NONE
;
638 else if (!strcmp(cleanup_arg
, "whitespace"))
639 cleanup_mode
= CLEANUP_SPACE
;
640 else if (!strcmp(cleanup_arg
, "strip"))
641 cleanup_mode
= CLEANUP_ALL
;
643 die("Invalid cleanup mode %s", cleanup_arg
);
646 die("Paths with -a does not make sense.");
647 else if (interactive
&& argc
> 0)
648 die("Paths with --interactive does not make sense.");
653 int cmd_status(int argc
, const char **argv
, const char *prefix
)
655 const char *index_file
;
658 git_config(git_status_config
);
660 argc
= parse_and_validate_options(argc
, argv
, builtin_status_usage
);
662 index_file
= prepare_index(argc
, argv
, prefix
);
664 commitable
= run_status(stdout
, index_file
, prefix
, 0);
666 rollback_index_files();
668 return commitable
? 0 : 1;
671 static int run_hook(const char *index_file
, const char *name
, const char *arg
)
673 struct child_process hook
;
674 const char *argv
[3], *env
[2];
675 char index
[PATH_MAX
];
677 argv
[0] = git_path("hooks/%s", name
);
680 snprintf(index
, sizeof(index
), "GIT_INDEX_FILE=%s", index_file
);
684 if (access(argv
[0], X_OK
) < 0)
687 memset(&hook
, 0, sizeof(hook
));
690 hook
.stdout_to_stderr
= 1;
693 return run_command(&hook
);
696 static void print_summary(const char *prefix
, const unsigned char *sha1
)
699 struct commit
*commit
;
701 commit
= lookup_commit(sha1
);
703 die("couldn't look up newly created commit");
704 if (!commit
|| parse_commit(commit
))
705 die("could not parse newly created commit");
707 init_revisions(&rev
, prefix
);
708 setup_revisions(0, NULL
, &rev
, NULL
);
712 rev
.diffopt
.output_format
=
713 DIFF_FORMAT_SHORTSTAT
| DIFF_FORMAT_SUMMARY
;
715 rev
.verbose_header
= 1;
716 rev
.show_root_diff
= 1;
717 rev
.commit_format
= get_commit_format("format:%h: %s");
718 rev
.always_show_header
= 0;
719 rev
.diffopt
.detect_rename
= 1;
720 rev
.diffopt
.rename_limit
= 100;
721 rev
.diffopt
.break_opt
= 0;
722 diff_setup_done(&rev
.diffopt
);
724 printf("Created %scommit ", initial_commit
? "initial " : "");
726 if (!log_tree_commit(&rev
, commit
)) {
727 struct strbuf buf
= STRBUF_INIT
;
728 format_commit_message(commit
, "%h: %s", &buf
);
729 printf("%s\n", buf
.buf
);
730 strbuf_release(&buf
);
734 int git_commit_config(const char *k
, const char *v
)
736 if (!strcmp(k
, "commit.template")) {
737 template_file
= xstrdup(v
);
741 return git_status_config(k
, v
);
744 static int is_a_merge(const unsigned char *sha1
)
746 struct commit
*commit
= lookup_commit(sha1
);
747 if (!commit
|| parse_commit(commit
))
748 die("could not parse HEAD commit");
749 return !!(commit
->parents
&& commit
->parents
->next
);
752 static const char commit_utf8_warn
[] =
753 "Warning: commit message does not conform to UTF-8.\n"
754 "You may want to amend it after fixing the message, or set the config\n"
755 "variable i18n.commitencoding to the encoding your project uses.\n";
757 int cmd_commit(int argc
, const char **argv
, const char *prefix
)
761 const char *index_file
, *reflog_msg
;
763 unsigned char commit_sha1
[20];
764 struct ref_lock
*ref_lock
;
766 git_config(git_commit_config
);
768 argc
= parse_and_validate_options(argc
, argv
, builtin_commit_usage
);
770 index_file
= prepare_index(argc
, argv
, prefix
);
772 if (!no_verify
&& run_hook(index_file
, "pre-commit", NULL
)) {
773 rollback_index_files();
777 if (!prepare_log_message(index_file
, prefix
) && !in_merge
&&
778 !allow_empty
&& !(amend
&& is_a_merge(head_sha1
))) {
779 run_status(stdout
, index_file
, prefix
, 0);
780 rollback_index_files();
781 unlink(commit_editmsg
);
786 * Re-read the index as pre-commit hook could have updated it,
787 * and write it out as a tree.
790 read_cache_from(index_file
);
791 if (!active_cache_tree
)
792 active_cache_tree
= cache_tree();
793 if (cache_tree_update(active_cache_tree
,
794 active_cache
, active_nr
, 0, 0) < 0) {
795 rollback_index_files();
796 die("Error building trees");
803 strbuf_addf(&sb
, "tree %s\n",
804 sha1_to_hex(active_cache_tree
->sha1
));
806 /* Determine parents */
807 if (initial_commit
) {
808 reflog_msg
= "commit (initial)";
810 struct commit_list
*c
;
811 struct commit
*commit
;
813 reflog_msg
= "commit (amend)";
814 commit
= lookup_commit(head_sha1
);
815 if (!commit
|| parse_commit(commit
))
816 die("could not parse HEAD commit");
818 for (c
= commit
->parents
; c
; c
= c
->next
)
819 strbuf_addf(&sb
, "parent %s\n",
820 sha1_to_hex(c
->item
->object
.sha1
));
821 } else if (in_merge
) {
825 reflog_msg
= "commit (merge)";
826 strbuf_addf(&sb
, "parent %s\n", sha1_to_hex(head_sha1
));
828 fp
= fopen(git_path("MERGE_HEAD"), "r");
830 die("could not open %s for reading: %s",
831 git_path("MERGE_HEAD"), strerror(errno
));
832 while (strbuf_getline(&m
, fp
, '\n') != EOF
)
833 strbuf_addf(&sb
, "parent %s\n", m
.buf
);
837 reflog_msg
= "commit";
838 strbuf_addf(&sb
, "parent %s\n", sha1_to_hex(head_sha1
));
841 determine_author_info(&sb
);
842 strbuf_addf(&sb
, "committer %s\n", git_committer_info(IDENT_ERROR_ON_NO_NAME
));
843 if (!is_encoding_utf8(git_commit_encoding
))
844 strbuf_addf(&sb
, "encoding %s\n", git_commit_encoding
);
845 strbuf_addch(&sb
, '\n');
847 /* Get the commit message and validate it */
850 char index
[PATH_MAX
];
851 const char *env
[2] = { index
, NULL
};
852 snprintf(index
, sizeof(index
), "GIT_INDEX_FILE=%s", index_file
);
853 launch_editor(git_path(commit_editmsg
), NULL
, env
);
856 run_hook(index_file
, "commit-msg", git_path(commit_editmsg
))) {
857 rollback_index_files();
860 if (strbuf_read_file(&sb
, git_path(commit_editmsg
), 0) < 0) {
861 rollback_index_files();
862 die("could not read commit message");
865 /* Truncate the message just before the diff, if any. */
866 p
= strstr(sb
.buf
, "\ndiff --git a/");
868 strbuf_setlen(&sb
, p
- sb
.buf
+ 1);
870 if (cleanup_mode
!= CLEANUP_NONE
)
871 stripspace(&sb
, cleanup_mode
== CLEANUP_ALL
);
872 if (sb
.len
< header_len
|| message_is_empty(&sb
, header_len
)) {
873 rollback_index_files();
874 die("no commit message? aborting commit.");
876 strbuf_addch(&sb
, '\0');
877 if (is_encoding_utf8(git_commit_encoding
) && !is_utf8(sb
.buf
))
878 fprintf(stderr
, commit_utf8_warn
);
880 if (write_sha1_file(sb
.buf
, sb
.len
- 1, commit_type
, commit_sha1
)) {
881 rollback_index_files();
882 die("failed to write commit object");
885 ref_lock
= lock_any_ref_for_update("HEAD",
886 initial_commit
? NULL
: head_sha1
,
889 nl
= strchr(sb
.buf
+ header_len
, '\n');
891 strbuf_setlen(&sb
, nl
+ 1 - sb
.buf
);
893 strbuf_addch(&sb
, '\n');
894 strbuf_remove(&sb
, 0, header_len
);
895 strbuf_insert(&sb
, 0, reflog_msg
, strlen(reflog_msg
));
896 strbuf_insert(&sb
, strlen(reflog_msg
), ": ", 2);
899 rollback_index_files();
900 die("cannot lock HEAD ref");
902 if (write_ref_sha1(ref_lock
, commit_sha1
, sb
.buf
) < 0) {
903 rollback_index_files();
904 die("cannot update HEAD ref");
907 unlink(git_path("MERGE_HEAD"));
908 unlink(git_path("MERGE_MSG"));
910 commit_index_files();
913 run_hook(get_index_file(), "post-commit", NULL
);
915 print_summary(prefix
, commit_sha1
);