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Commit | Line | Data |
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f5bbc322 KH |
1 | /* |
2 | * Builtin "git commit" | |
3 | * | |
4 | * Copyright (c) 2007 Kristian Høgsberg <krh@redhat.com> | |
5 | * Based on git-commit.sh by Junio C Hamano and Linus Torvalds | |
6 | */ | |
7 | ||
8 | #include "cache.h" | |
9 | #include "cache-tree.h" | |
6b2f2d98 | 10 | #include "color.h" |
2888605c | 11 | #include "dir.h" |
f5bbc322 KH |
12 | #include "builtin.h" |
13 | #include "diff.h" | |
14 | #include "diffcore.h" | |
15 | #include "commit.h" | |
16 | #include "revision.h" | |
17 | #include "wt-status.h" | |
18 | #include "run-command.h" | |
19 | #include "refs.h" | |
20 | #include "log-tree.h" | |
21 | #include "strbuf.h" | |
22 | #include "utf8.h" | |
23 | #include "parse-options.h" | |
2888605c | 24 | #include "path-list.h" |
fa9dcf80 | 25 | #include "unpack-trees.h" |
f5bbc322 KH |
26 | |
27 | static const char * const builtin_commit_usage[] = { | |
28 | "git-commit [options] [--] <filepattern>...", | |
29 | NULL | |
30 | }; | |
31 | ||
2f02b25f SB |
32 | static const char * const builtin_status_usage[] = { |
33 | "git-status [options] [--] <filepattern>...", | |
34 | NULL | |
35 | }; | |
36 | ||
f5bbc322 KH |
37 | static unsigned char head_sha1[20], merge_head_sha1[20]; |
38 | static char *use_message_buffer; | |
39 | static const char commit_editmsg[] = "COMMIT_EDITMSG"; | |
2888605c JH |
40 | static struct lock_file index_lock; /* real index */ |
41 | static struct lock_file false_lock; /* used only for partial commits */ | |
42 | static enum { | |
43 | COMMIT_AS_IS = 1, | |
44 | COMMIT_NORMAL, | |
45 | COMMIT_PARTIAL, | |
46 | } commit_style; | |
f5bbc322 | 47 | |
f9568530 | 48 | static char *logfile, *force_author, *template_file; |
f5bbc322 KH |
49 | static char *edit_message, *use_message; |
50 | static int all, edit_flag, also, interactive, only, amend, signoff; | |
5241b6bf | 51 | static int quiet, verbose, untracked_files, no_verify, allow_empty; |
5f065737 AR |
52 | /* |
53 | * The default commit message cleanup mode will remove the lines | |
54 | * beginning with # (shell comments) and leading and trailing | |
55 | * whitespaces (empty lines or containing only whitespaces) | |
56 | * if editor is used, and only the whitespaces if the message | |
57 | * is specified explicitly. | |
58 | */ | |
59 | static enum { | |
60 | CLEANUP_SPACE, | |
61 | CLEANUP_NONE, | |
62 | CLEANUP_ALL, | |
63 | } cleanup_mode; | |
64 | static char *cleanup_arg; | |
f5bbc322 | 65 | |
4803466f | 66 | static int use_editor = 1, initial_commit, in_merge; |
f5bbc322 | 67 | const char *only_include_assumed; |
f9568530 JS |
68 | struct strbuf message; |
69 | ||
70 | static int opt_parse_m(const struct option *opt, const char *arg, int unset) | |
71 | { | |
72 | struct strbuf *buf = opt->value; | |
73 | if (unset) | |
74 | strbuf_setlen(buf, 0); | |
75 | else { | |
76 | strbuf_addstr(buf, arg); | |
77 | strbuf_addch(buf, '\n'); | |
78 | strbuf_addch(buf, '\n'); | |
79 | } | |
80 | return 0; | |
81 | } | |
f5bbc322 KH |
82 | |
83 | static struct option builtin_commit_options[] = { | |
84 | OPT__QUIET(&quiet), | |
85 | OPT__VERBOSE(&verbose), | |
86 | OPT_GROUP("Commit message options"), | |
87 | ||
88 | OPT_STRING('F', "file", &logfile, "FILE", "read log from file"), | |
89 | OPT_STRING(0, "author", &force_author, "AUTHOR", "override author for commit"), | |
f9568530 | 90 | OPT_CALLBACK('m', "message", &message, "MESSAGE", "specify commit message", opt_parse_m), |
f5bbc322 KH |
91 | OPT_STRING('c', "reedit-message", &edit_message, "COMMIT", "reuse and edit message from specified commit "), |
92 | OPT_STRING('C', "reuse-message", &use_message, "COMMIT", "reuse message from specified commit"), | |
362b0dd5 | 93 | OPT_BOOLEAN('s', "signoff", &signoff, "add Signed-off-by:"), |
f5bbc322 KH |
94 | OPT_STRING('t', "template", &template_file, "FILE", "use specified template file"), |
95 | OPT_BOOLEAN('e', "edit", &edit_flag, "force edit of commit"), | |
96 | ||
97 | OPT_GROUP("Commit contents options"), | |
98 | OPT_BOOLEAN('a', "all", &all, "commit all changed files"), | |
99 | OPT_BOOLEAN('i', "include", &also, "add specified files to index for commit"), | |
100 | OPT_BOOLEAN(0, "interactive", &interactive, "interactively add files"), | |
d4ba07ca | 101 | OPT_BOOLEAN('o', "only", &only, "commit only specified files"), |
f5bbc322 KH |
102 | OPT_BOOLEAN('n', "no-verify", &no_verify, "bypass pre-commit hook"), |
103 | OPT_BOOLEAN(0, "amend", &amend, "amend previous commit"), | |
e1645901 | 104 | OPT_BOOLEAN('u', "untracked-files", &untracked_files, "show all untracked files"), |
5241b6bf | 105 | OPT_BOOLEAN(0, "allow-empty", &allow_empty, "ok to record an empty change"), |
5f065737 | 106 | OPT_STRING(0, "cleanup", &cleanup_arg, "default", "how to strip spaces and #comments from message"), |
f5bbc322 KH |
107 | |
108 | OPT_END() | |
109 | }; | |
110 | ||
2888605c JH |
111 | static void rollback_index_files(void) |
112 | { | |
113 | switch (commit_style) { | |
114 | case COMMIT_AS_IS: | |
115 | break; /* nothing to do */ | |
116 | case COMMIT_NORMAL: | |
117 | rollback_lock_file(&index_lock); | |
118 | break; | |
119 | case COMMIT_PARTIAL: | |
120 | rollback_lock_file(&index_lock); | |
121 | rollback_lock_file(&false_lock); | |
122 | break; | |
123 | } | |
124 | } | |
125 | ||
5a9dd399 | 126 | static int commit_index_files(void) |
2888605c | 127 | { |
5a9dd399 BC |
128 | int err = 0; |
129 | ||
2888605c JH |
130 | switch (commit_style) { |
131 | case COMMIT_AS_IS: | |
132 | break; /* nothing to do */ | |
133 | case COMMIT_NORMAL: | |
5a9dd399 | 134 | err = commit_lock_file(&index_lock); |
2888605c JH |
135 | break; |
136 | case COMMIT_PARTIAL: | |
5a9dd399 | 137 | err = commit_lock_file(&index_lock); |
2888605c JH |
138 | rollback_lock_file(&false_lock); |
139 | break; | |
140 | } | |
5a9dd399 BC |
141 | |
142 | return err; | |
2888605c JH |
143 | } |
144 | ||
145 | /* | |
146 | * Take a union of paths in the index and the named tree (typically, "HEAD"), | |
147 | * and return the paths that match the given pattern in list. | |
148 | */ | |
149 | static int list_paths(struct path_list *list, const char *with_tree, | |
150 | const char *prefix, const char **pattern) | |
151 | { | |
152 | int i; | |
153 | char *m; | |
154 | ||
155 | for (i = 0; pattern[i]; i++) | |
156 | ; | |
157 | m = xcalloc(1, i); | |
158 | ||
159 | if (with_tree) | |
160 | overlay_tree_on_cache(with_tree, prefix); | |
161 | ||
162 | for (i = 0; i < active_nr; i++) { | |
163 | struct cache_entry *ce = active_cache[i]; | |
7a51ed66 | 164 | if (ce->ce_flags & CE_UPDATE) |
e87e22d0 | 165 | continue; |
2888605c JH |
166 | if (!pathspec_match(pattern, m, ce->name, 0)) |
167 | continue; | |
168 | path_list_insert(ce->name, list); | |
169 | } | |
170 | ||
171 | return report_path_error(m, pattern, prefix ? strlen(prefix) : 0); | |
172 | } | |
173 | ||
174 | static void add_remove_files(struct path_list *list) | |
175 | { | |
176 | int i; | |
177 | for (i = 0; i < list->nr; i++) { | |
d177cab0 | 178 | struct stat st; |
2888605c | 179 | struct path_list_item *p = &(list->items[i]); |
d177cab0 | 180 | |
960b8ad1 AR |
181 | if (!lstat(p->path, &st)) { |
182 | if (add_to_cache(p->path, &st, 0)) | |
183 | die("updating files failed"); | |
184 | } else | |
2888605c JH |
185 | remove_file_from_cache(p->path); |
186 | } | |
187 | } | |
188 | ||
fa9dcf80 LT |
189 | static void create_base_index(void) |
190 | { | |
191 | struct tree *tree; | |
192 | struct unpack_trees_options opts; | |
193 | struct tree_desc t; | |
194 | ||
195 | if (initial_commit) { | |
196 | discard_cache(); | |
197 | return; | |
198 | } | |
199 | ||
200 | memset(&opts, 0, sizeof(opts)); | |
201 | opts.head_idx = 1; | |
202 | opts.index_only = 1; | |
203 | opts.merge = 1; | |
34110cd4 LT |
204 | opts.src_index = &the_index; |
205 | opts.dst_index = &the_index; | |
fa9dcf80 LT |
206 | |
207 | opts.fn = oneway_merge; | |
208 | tree = parse_tree_indirect(head_sha1); | |
209 | if (!tree) | |
210 | die("failed to unpack HEAD tree object"); | |
211 | parse_tree(tree); | |
212 | init_tree_desc(&t, tree->buffer, tree->size); | |
203a2fe1 DB |
213 | if (unpack_trees(1, &t, &opts)) |
214 | exit(128); /* We've already reported the error, finish dying */ | |
fa9dcf80 LT |
215 | } |
216 | ||
f64fe7b4 | 217 | static char *prepare_index(int argc, const char **argv, const char *prefix) |
f5bbc322 KH |
218 | { |
219 | int fd; | |
2888605c JH |
220 | struct path_list partial; |
221 | const char **pathspec = NULL; | |
f5bbc322 KH |
222 | |
223 | if (interactive) { | |
3f061887 | 224 | interactive_add(argc, argv, prefix); |
2888605c | 225 | commit_style = COMMIT_AS_IS; |
f5bbc322 KH |
226 | return get_index_file(); |
227 | } | |
228 | ||
f5bbc322 KH |
229 | if (read_cache() < 0) |
230 | die("index file corrupt"); | |
231 | ||
f64fe7b4 JH |
232 | if (*argv) |
233 | pathspec = get_pathspec(prefix, argv); | |
2888605c JH |
234 | |
235 | /* | |
236 | * Non partial, non as-is commit. | |
237 | * | |
238 | * (1) get the real index; | |
239 | * (2) update the_index as necessary; | |
240 | * (3) write the_index out to the real index (still locked); | |
241 | * (4) return the name of the locked index file. | |
242 | * | |
243 | * The caller should run hooks on the locked real index, and | |
244 | * (A) if all goes well, commit the real index; | |
245 | * (B) on failure, rollback the real index. | |
246 | */ | |
247 | if (all || (also && pathspec && *pathspec)) { | |
248 | int fd = hold_locked_index(&index_lock, 1); | |
249 | add_files_to_cache(0, also ? prefix : NULL, pathspec); | |
d37d3203 | 250 | refresh_cache(REFRESH_QUIET); |
4ed7cd3a BC |
251 | if (write_cache(fd, active_cache, active_nr) || |
252 | close_lock_file(&index_lock)) | |
f5bbc322 | 253 | die("unable to write new_index file"); |
2888605c JH |
254 | commit_style = COMMIT_NORMAL; |
255 | return index_lock.filename; | |
f5bbc322 KH |
256 | } |
257 | ||
2888605c JH |
258 | /* |
259 | * As-is commit. | |
260 | * | |
261 | * (1) return the name of the real index file. | |
262 | * | |
263 | * The caller should run hooks on the real index, and run | |
264 | * hooks on the real index, and create commit from the_index. | |
265 | * We still need to refresh the index here. | |
266 | */ | |
267 | if (!pathspec || !*pathspec) { | |
268 | fd = hold_locked_index(&index_lock, 1); | |
269 | refresh_cache(REFRESH_QUIET); | |
270 | if (write_cache(fd, active_cache, active_nr) || | |
4439751d | 271 | commit_locked_index(&index_lock)) |
2888605c JH |
272 | die("unable to write new_index file"); |
273 | commit_style = COMMIT_AS_IS; | |
f5bbc322 KH |
274 | return get_index_file(); |
275 | } | |
276 | ||
2888605c JH |
277 | /* |
278 | * A partial commit. | |
279 | * | |
280 | * (0) find the set of affected paths; | |
281 | * (1) get lock on the real index file; | |
282 | * (2) update the_index with the given paths; | |
283 | * (3) write the_index out to the real index (still locked); | |
284 | * (4) get lock on the false index file; | |
285 | * (5) reset the_index from HEAD; | |
286 | * (6) update the_index the same way as (2); | |
287 | * (7) write the_index out to the false index file; | |
288 | * (8) return the name of the false index file (still locked); | |
289 | * | |
290 | * The caller should run hooks on the locked false index, and | |
291 | * create commit from it. Then | |
292 | * (A) if all goes well, commit the real index; | |
293 | * (B) on failure, rollback the real index; | |
294 | * In either case, rollback the false index. | |
295 | */ | |
296 | commit_style = COMMIT_PARTIAL; | |
297 | ||
298 | if (file_exists(git_path("MERGE_HEAD"))) | |
299 | die("cannot do a partial commit during a merge."); | |
300 | ||
301 | memset(&partial, 0, sizeof(partial)); | |
302 | partial.strdup_paths = 1; | |
303 | if (list_paths(&partial, initial_commit ? NULL : "HEAD", prefix, pathspec)) | |
304 | exit(1); | |
305 | ||
306 | discard_cache(); | |
307 | if (read_cache() < 0) | |
308 | die("cannot read the index"); | |
309 | ||
310 | fd = hold_locked_index(&index_lock, 1); | |
311 | add_remove_files(&partial); | |
ef12b50d | 312 | refresh_cache(REFRESH_QUIET); |
4ed7cd3a BC |
313 | if (write_cache(fd, active_cache, active_nr) || |
314 | close_lock_file(&index_lock)) | |
f5bbc322 KH |
315 | die("unable to write new_index file"); |
316 | ||
2888605c JH |
317 | fd = hold_lock_file_for_update(&false_lock, |
318 | git_path("next-index-%d", getpid()), 1); | |
fa9dcf80 LT |
319 | |
320 | create_base_index(); | |
2888605c | 321 | add_remove_files(&partial); |
d37d3203 | 322 | refresh_cache(REFRESH_QUIET); |
f5bbc322 | 323 | |
4ed7cd3a BC |
324 | if (write_cache(fd, active_cache, active_nr) || |
325 | close_lock_file(&false_lock)) | |
2888605c | 326 | die("unable to write temporary index file"); |
959ba670 JK |
327 | |
328 | discard_cache(); | |
329 | read_cache_from(false_lock.filename); | |
330 | ||
2888605c | 331 | return false_lock.filename; |
f5bbc322 KH |
332 | } |
333 | ||
37d07f8f | 334 | static int run_status(FILE *fp, const char *index_file, const char *prefix, int nowarn) |
f5bbc322 KH |
335 | { |
336 | struct wt_status s; | |
337 | ||
338 | wt_status_prepare(&s); | |
46f721c8 JK |
339 | if (wt_status_relative_paths) |
340 | s.prefix = prefix; | |
f5bbc322 KH |
341 | |
342 | if (amend) { | |
343 | s.amend = 1; | |
344 | s.reference = "HEAD^1"; | |
345 | } | |
346 | s.verbose = verbose; | |
347 | s.untracked = untracked_files; | |
348 | s.index_file = index_file; | |
349 | s.fp = fp; | |
37d07f8f | 350 | s.nowarn = nowarn; |
f5bbc322 KH |
351 | |
352 | wt_status_print(&s); | |
353 | ||
354 | return s.commitable; | |
355 | } | |
356 | ||
3473f303 PB |
357 | static int run_hook(const char *index_file, const char *name, ...) |
358 | { | |
359 | struct child_process hook; | |
360 | const char *argv[10], *env[2]; | |
361 | char index[PATH_MAX]; | |
362 | va_list args; | |
363 | int i; | |
364 | ||
365 | va_start(args, name); | |
366 | argv[0] = git_path("hooks/%s", name); | |
367 | i = 0; | |
368 | do { | |
369 | if (++i >= ARRAY_SIZE(argv)) | |
370 | die ("run_hook(): too many arguments"); | |
371 | argv[i] = va_arg(args, const char *); | |
372 | } while (argv[i]); | |
373 | va_end(args); | |
374 | ||
375 | snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file); | |
376 | env[0] = index; | |
377 | env[1] = NULL; | |
378 | ||
379 | if (access(argv[0], X_OK) < 0) | |
380 | return 0; | |
381 | ||
382 | memset(&hook, 0, sizeof(hook)); | |
383 | hook.argv = argv; | |
384 | hook.no_stdin = 1; | |
385 | hook.stdout_to_stderr = 1; | |
386 | hook.env = env; | |
387 | ||
388 | return run_command(&hook); | |
389 | } | |
390 | ||
ec84bd00 PB |
391 | static int is_a_merge(const unsigned char *sha1) |
392 | { | |
393 | struct commit *commit = lookup_commit(sha1); | |
394 | if (!commit || parse_commit(commit)) | |
395 | die("could not parse HEAD commit"); | |
396 | return !!(commit->parents && commit->parents->next); | |
397 | } | |
398 | ||
f5bbc322 KH |
399 | static const char sign_off_header[] = "Signed-off-by: "; |
400 | ||
ec84bd00 | 401 | static int prepare_to_commit(const char *index_file, const char *prefix) |
f5bbc322 KH |
402 | { |
403 | struct stat statbuf; | |
bc5d248a | 404 | int commitable, saved_color_setting; |
f5bbc322 KH |
405 | struct strbuf sb; |
406 | char *buffer; | |
407 | FILE *fp; | |
8089c85b PB |
408 | const char *hook_arg1 = NULL; |
409 | const char *hook_arg2 = NULL; | |
f5bbc322 | 410 | |
ec84bd00 PB |
411 | if (!no_verify && run_hook(index_file, "pre-commit", NULL)) |
412 | return 0; | |
f5bbc322 KH |
413 | |
414 | strbuf_init(&sb, 0); | |
f9568530 JS |
415 | if (message.len) { |
416 | strbuf_addbuf(&sb, &message); | |
8089c85b | 417 | hook_arg1 = "message"; |
f5bbc322 KH |
418 | } else if (logfile && !strcmp(logfile, "-")) { |
419 | if (isatty(0)) | |
420 | fprintf(stderr, "(reading log message from standard input)\n"); | |
421 | if (strbuf_read(&sb, 0, 0) < 0) | |
422 | die("could not read log from standard input"); | |
8089c85b | 423 | hook_arg1 = "message"; |
f5bbc322 KH |
424 | } else if (logfile) { |
425 | if (strbuf_read_file(&sb, logfile, 0) < 0) | |
426 | die("could not read log file '%s': %s", | |
427 | logfile, strerror(errno)); | |
8089c85b | 428 | hook_arg1 = "message"; |
f5bbc322 KH |
429 | } else if (use_message) { |
430 | buffer = strstr(use_message_buffer, "\n\n"); | |
431 | if (!buffer || buffer[2] == '\0') | |
432 | die("commit has empty message"); | |
433 | strbuf_add(&sb, buffer + 2, strlen(buffer + 2)); | |
8089c85b PB |
434 | hook_arg1 = "commit"; |
435 | hook_arg2 = use_message; | |
f5bbc322 KH |
436 | } else if (!stat(git_path("MERGE_MSG"), &statbuf)) { |
437 | if (strbuf_read_file(&sb, git_path("MERGE_MSG"), 0) < 0) | |
438 | die("could not read MERGE_MSG: %s", strerror(errno)); | |
8089c85b | 439 | hook_arg1 = "merge"; |
f5bbc322 KH |
440 | } else if (!stat(git_path("SQUASH_MSG"), &statbuf)) { |
441 | if (strbuf_read_file(&sb, git_path("SQUASH_MSG"), 0) < 0) | |
442 | die("could not read SQUASH_MSG: %s", strerror(errno)); | |
8089c85b | 443 | hook_arg1 = "squash"; |
f5bbc322 KH |
444 | } else if (template_file && !stat(template_file, &statbuf)) { |
445 | if (strbuf_read_file(&sb, template_file, 0) < 0) | |
446 | die("could not read %s: %s", | |
447 | template_file, strerror(errno)); | |
8089c85b | 448 | hook_arg1 = "template"; |
f5bbc322 KH |
449 | } |
450 | ||
8089c85b PB |
451 | /* |
452 | * This final case does not modify the template message, | |
453 | * it just sets the argument to the prepare-commit-msg hook. | |
454 | */ | |
455 | else if (in_merge) | |
456 | hook_arg1 = "merge"; | |
457 | ||
f5bbc322 KH |
458 | fp = fopen(git_path(commit_editmsg), "w"); |
459 | if (fp == NULL) | |
b5b644a9 | 460 | die("could not open %s", git_path(commit_editmsg)); |
f5bbc322 | 461 | |
5f065737 AR |
462 | if (cleanup_mode != CLEANUP_NONE) |
463 | stripspace(&sb, 0); | |
f5bbc322 KH |
464 | |
465 | if (signoff) { | |
13208572 JS |
466 | struct strbuf sob; |
467 | int i; | |
468 | ||
469 | strbuf_init(&sob, 0); | |
470 | strbuf_addstr(&sob, sign_off_header); | |
d9ccfe77 JH |
471 | strbuf_addstr(&sob, fmt_name(getenv("GIT_COMMITTER_NAME"), |
472 | getenv("GIT_COMMITTER_EMAIL"))); | |
13208572 | 473 | strbuf_addch(&sob, '\n'); |
13208572 JS |
474 | for (i = sb.len - 1; i > 0 && sb.buf[i - 1] != '\n'; i--) |
475 | ; /* do nothing */ | |
2150554b JS |
476 | if (prefixcmp(sb.buf + i, sob.buf)) { |
477 | if (prefixcmp(sb.buf + i, sign_off_header)) | |
478 | strbuf_addch(&sb, '\n'); | |
13208572 | 479 | strbuf_addbuf(&sb, &sob); |
2150554b | 480 | } |
13208572 | 481 | strbuf_release(&sob); |
f5bbc322 KH |
482 | } |
483 | ||
13208572 | 484 | if (fwrite(sb.buf, 1, sb.len, fp) < sb.len) |
b5b644a9 | 485 | die("could not write commit template: %s", strerror(errno)); |
13208572 | 486 | |
f5bbc322 KH |
487 | strbuf_release(&sb); |
488 | ||
ec84bd00 PB |
489 | if (use_editor) { |
490 | if (in_merge) | |
491 | fprintf(fp, | |
492 | "#\n" | |
493 | "# It looks like you may be committing a MERGE.\n" | |
494 | "# If this is not correct, please remove the file\n" | |
495 | "# %s\n" | |
496 | "# and try again.\n" | |
497 | "#\n", | |
498 | git_path("MERGE_HEAD")); | |
499 | ||
500 | fprintf(fp, | |
501 | "\n" | |
502 | "# Please enter the commit message for your changes.\n" | |
503 | "# (Comment lines starting with '#' will "); | |
504 | if (cleanup_mode == CLEANUP_ALL) | |
505 | fprintf(fp, "not be included)\n"); | |
506 | else /* CLEANUP_SPACE, that is. */ | |
507 | fprintf(fp, "be kept.\n" | |
508 | "# You can remove them yourself if you want to)\n"); | |
509 | if (only_include_assumed) | |
510 | fprintf(fp, "# %s\n", only_include_assumed); | |
511 | ||
512 | saved_color_setting = wt_status_use_color; | |
513 | wt_status_use_color = 0; | |
514 | commitable = run_status(fp, index_file, prefix, 1); | |
515 | wt_status_use_color = saved_color_setting; | |
516 | } else { | |
7168624c | 517 | struct rev_info rev; |
d616a239 | 518 | unsigned char sha1[20]; |
fbcf1184 | 519 | const char *parent = "HEAD"; |
7168624c | 520 | |
7168624c AR |
521 | if (!active_nr && read_cache() < 0) |
522 | die("Cannot read index"); | |
523 | ||
fbcf1184 JH |
524 | if (amend) |
525 | parent = "HEAD^1"; | |
526 | ||
d616a239 | 527 | if (get_sha1(parent, sha1)) |
ec84bd00 PB |
528 | commitable = !!active_nr; |
529 | else { | |
530 | init_revisions(&rev, ""); | |
531 | rev.abbrev = 0; | |
532 | setup_revisions(0, NULL, &rev, parent); | |
533 | DIFF_OPT_SET(&rev.diffopt, QUIET); | |
534 | DIFF_OPT_SET(&rev.diffopt, EXIT_WITH_STATUS); | |
535 | run_diff_index(&rev, 1 /* cached */); | |
536 | ||
537 | commitable = !!DIFF_OPT_TST(&rev.diffopt, HAS_CHANGES); | |
538 | } | |
539 | } | |
d616a239 | 540 | |
ec84bd00 | 541 | fclose(fp); |
7168624c | 542 | |
ec84bd00 PB |
543 | if (!commitable && !in_merge && !allow_empty && |
544 | !(amend && is_a_merge(head_sha1))) { | |
545 | run_status(stdout, index_file, prefix, 0); | |
546 | unlink(commit_editmsg); | |
547 | return 0; | |
7168624c AR |
548 | } |
549 | ||
ec84bd00 PB |
550 | /* |
551 | * Re-read the index as pre-commit hook could have updated it, | |
552 | * and write it out as a tree. We must do this before we invoke | |
553 | * the editor and after we invoke run_status above. | |
554 | */ | |
555 | discard_cache(); | |
556 | read_cache_from(index_file); | |
557 | if (!active_cache_tree) | |
558 | active_cache_tree = cache_tree(); | |
559 | if (cache_tree_update(active_cache_tree, | |
560 | active_cache, active_nr, 0, 0) < 0) { | |
561 | error("Error building trees"); | |
562 | return 0; | |
7168624c | 563 | } |
f5bbc322 | 564 | |
8089c85b PB |
565 | if (run_hook(index_file, "prepare-commit-msg", |
566 | git_path(commit_editmsg), hook_arg1, hook_arg2, NULL)) | |
567 | return 0; | |
f5bbc322 | 568 | |
ec84bd00 PB |
569 | if (use_editor) { |
570 | char index[PATH_MAX]; | |
571 | const char *env[2] = { index, NULL }; | |
572 | snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file); | |
573 | launch_editor(git_path(commit_editmsg), NULL, env); | |
574 | } | |
f5bbc322 | 575 | |
ec84bd00 PB |
576 | if (!no_verify && |
577 | run_hook(index_file, "commit-msg", git_path(commit_editmsg), NULL)) { | |
578 | return 0; | |
579 | } | |
f5bbc322 | 580 | |
ec84bd00 | 581 | return 1; |
f5bbc322 KH |
582 | } |
583 | ||
584 | /* | |
585 | * Find out if the message starting at position 'start' in the strbuf | |
586 | * contains only whitespace and Signed-off-by lines. | |
587 | */ | |
588 | static int message_is_empty(struct strbuf *sb, int start) | |
589 | { | |
590 | struct strbuf tmpl; | |
591 | const char *nl; | |
592 | int eol, i; | |
593 | ||
5f065737 AR |
594 | if (cleanup_mode == CLEANUP_NONE && sb->len) |
595 | return 0; | |
596 | ||
f5bbc322 KH |
597 | /* See if the template is just a prefix of the message. */ |
598 | strbuf_init(&tmpl, 0); | |
599 | if (template_file && strbuf_read_file(&tmpl, template_file, 0) > 0) { | |
5f065737 | 600 | stripspace(&tmpl, cleanup_mode == CLEANUP_ALL); |
f5bbc322 KH |
601 | if (start + tmpl.len <= sb->len && |
602 | memcmp(tmpl.buf, sb->buf + start, tmpl.len) == 0) | |
603 | start += tmpl.len; | |
604 | } | |
605 | strbuf_release(&tmpl); | |
606 | ||
607 | /* Check if the rest is just whitespace and Signed-of-by's. */ | |
608 | for (i = start; i < sb->len; i++) { | |
609 | nl = memchr(sb->buf + i, '\n', sb->len - i); | |
610 | if (nl) | |
611 | eol = nl - sb->buf; | |
612 | else | |
613 | eol = sb->len; | |
614 | ||
615 | if (strlen(sign_off_header) <= eol - i && | |
616 | !prefixcmp(sb->buf + i, sign_off_header)) { | |
617 | i = eol; | |
618 | continue; | |
619 | } | |
620 | while (i < eol) | |
621 | if (!isspace(sb->buf[i++])) | |
622 | return 0; | |
623 | } | |
624 | ||
625 | return 1; | |
626 | } | |
627 | ||
628 | static void determine_author_info(struct strbuf *sb) | |
629 | { | |
630 | char *name, *email, *date; | |
631 | ||
632 | name = getenv("GIT_AUTHOR_NAME"); | |
633 | email = getenv("GIT_AUTHOR_EMAIL"); | |
634 | date = getenv("GIT_AUTHOR_DATE"); | |
635 | ||
636 | if (use_message) { | |
637 | const char *a, *lb, *rb, *eol; | |
638 | ||
639 | a = strstr(use_message_buffer, "\nauthor "); | |
640 | if (!a) | |
b5b644a9 | 641 | die("invalid commit: %s", use_message); |
f5bbc322 KH |
642 | |
643 | lb = strstr(a + 8, " <"); | |
644 | rb = strstr(a + 8, "> "); | |
645 | eol = strchr(a + 8, '\n'); | |
646 | if (!lb || !rb || !eol) | |
b5b644a9 | 647 | die("invalid commit: %s", use_message); |
f5bbc322 KH |
648 | |
649 | name = xstrndup(a + 8, lb - (a + 8)); | |
650 | email = xstrndup(lb + 2, rb - (lb + 2)); | |
651 | date = xstrndup(rb + 2, eol - (rb + 2)); | |
652 | } | |
653 | ||
654 | if (force_author) { | |
655 | const char *lb = strstr(force_author, " <"); | |
656 | const char *rb = strchr(force_author, '>'); | |
657 | ||
658 | if (!lb || !rb) | |
b5b644a9 | 659 | die("malformed --author parameter"); |
f5bbc322 KH |
660 | name = xstrndup(force_author, lb - force_author); |
661 | email = xstrndup(lb + 2, rb - (lb + 2)); | |
662 | } | |
663 | ||
774751a8 | 664 | strbuf_addf(sb, "author %s\n", fmt_ident(name, email, date, IDENT_ERROR_ON_NO_NAME)); |
f5bbc322 KH |
665 | } |
666 | ||
2f02b25f SB |
667 | static int parse_and_validate_options(int argc, const char *argv[], |
668 | const char * const usage[]) | |
f5bbc322 KH |
669 | { |
670 | int f = 0; | |
671 | ||
2f02b25f | 672 | argc = parse_options(argc, argv, builtin_commit_options, usage, 0); |
f5bbc322 | 673 | |
f9568530 | 674 | if (logfile || message.len || use_message) |
4803466f | 675 | use_editor = 0; |
f5bbc322 | 676 | if (edit_flag) |
4803466f | 677 | use_editor = 1; |
406400ce PB |
678 | if (!use_editor) |
679 | setenv("GIT_EDITOR", ":", 1); | |
f5bbc322 KH |
680 | |
681 | if (get_sha1("HEAD", head_sha1)) | |
682 | initial_commit = 1; | |
683 | ||
684 | if (!get_sha1("MERGE_HEAD", merge_head_sha1)) | |
685 | in_merge = 1; | |
686 | ||
687 | /* Sanity check options */ | |
688 | if (amend && initial_commit) | |
689 | die("You have nothing to amend."); | |
690 | if (amend && in_merge) | |
b5b644a9 | 691 | die("You are in the middle of a merge -- cannot amend."); |
f5bbc322 KH |
692 | |
693 | if (use_message) | |
694 | f++; | |
695 | if (edit_message) | |
696 | f++; | |
697 | if (logfile) | |
698 | f++; | |
699 | if (f > 1) | |
700 | die("Only one of -c/-C/-F can be used."); | |
f9568530 | 701 | if (message.len && f > 0) |
f5bbc322 KH |
702 | die("Option -m cannot be combined with -c/-C/-F."); |
703 | if (edit_message) | |
704 | use_message = edit_message; | |
1eb1e9ee | 705 | if (amend && !use_message) |
f5bbc322 KH |
706 | use_message = "HEAD"; |
707 | if (use_message) { | |
708 | unsigned char sha1[20]; | |
709 | static char utf8[] = "UTF-8"; | |
710 | const char *out_enc; | |
711 | char *enc, *end; | |
712 | struct commit *commit; | |
713 | ||
714 | if (get_sha1(use_message, sha1)) | |
715 | die("could not lookup commit %s", use_message); | |
8a2f8733 | 716 | commit = lookup_commit_reference(sha1); |
f5bbc322 KH |
717 | if (!commit || parse_commit(commit)) |
718 | die("could not parse commit %s", use_message); | |
719 | ||
720 | enc = strstr(commit->buffer, "\nencoding"); | |
721 | if (enc) { | |
722 | end = strchr(enc + 10, '\n'); | |
723 | enc = xstrndup(enc + 10, end - (enc + 10)); | |
724 | } else { | |
725 | enc = utf8; | |
726 | } | |
727 | out_enc = git_commit_encoding ? git_commit_encoding : utf8; | |
728 | ||
729 | if (strcmp(out_enc, enc)) | |
730 | use_message_buffer = | |
731 | reencode_string(commit->buffer, out_enc, enc); | |
732 | ||
733 | /* | |
734 | * If we failed to reencode the buffer, just copy it | |
735 | * byte for byte so the user can try to fix it up. | |
736 | * This also handles the case where input and output | |
737 | * encodings are identical. | |
738 | */ | |
739 | if (use_message_buffer == NULL) | |
740 | use_message_buffer = xstrdup(commit->buffer); | |
741 | if (enc != utf8) | |
742 | free(enc); | |
743 | } | |
744 | ||
745 | if (!!also + !!only + !!all + !!interactive > 1) | |
746 | die("Only one of --include/--only/--all/--interactive can be used."); | |
747 | if (argc == 0 && (also || (only && !amend))) | |
748 | die("No paths with --include/--only does not make sense."); | |
749 | if (argc == 0 && only && amend) | |
750 | only_include_assumed = "Clever... amending the last one with dirty index."; | |
3c5283f8 | 751 | if (argc > 0 && !also && !only) |
f5bbc322 | 752 | only_include_assumed = "Explicit paths specified without -i nor -o; assuming --only paths..."; |
5f065737 AR |
753 | if (!cleanup_arg || !strcmp(cleanup_arg, "default")) |
754 | cleanup_mode = use_editor ? CLEANUP_ALL : CLEANUP_SPACE; | |
755 | else if (!strcmp(cleanup_arg, "verbatim")) | |
756 | cleanup_mode = CLEANUP_NONE; | |
757 | else if (!strcmp(cleanup_arg, "whitespace")) | |
758 | cleanup_mode = CLEANUP_SPACE; | |
759 | else if (!strcmp(cleanup_arg, "strip")) | |
760 | cleanup_mode = CLEANUP_ALL; | |
761 | else | |
762 | die("Invalid cleanup mode %s", cleanup_arg); | |
f5bbc322 KH |
763 | |
764 | if (all && argc > 0) | |
765 | die("Paths with -a does not make sense."); | |
766 | else if (interactive && argc > 0) | |
767 | die("Paths with --interactive does not make sense."); | |
768 | ||
769 | return argc; | |
770 | } | |
771 | ||
772 | int cmd_status(int argc, const char **argv, const char *prefix) | |
773 | { | |
774 | const char *index_file; | |
775 | int commitable; | |
776 | ||
777 | git_config(git_status_config); | |
778 | ||
6b2f2d98 MK |
779 | if (wt_status_use_color == -1) |
780 | wt_status_use_color = git_use_color_default; | |
781 | ||
2f02b25f | 782 | argc = parse_and_validate_options(argc, argv, builtin_status_usage); |
f5bbc322 | 783 | |
f64fe7b4 | 784 | index_file = prepare_index(argc, argv, prefix); |
f5bbc322 | 785 | |
37d07f8f | 786 | commitable = run_status(stdout, index_file, prefix, 0); |
f5bbc322 | 787 | |
2888605c | 788 | rollback_index_files(); |
f5bbc322 KH |
789 | |
790 | return commitable ? 0 : 1; | |
791 | } | |
792 | ||
f5bbc322 KH |
793 | static void print_summary(const char *prefix, const unsigned char *sha1) |
794 | { | |
795 | struct rev_info rev; | |
796 | struct commit *commit; | |
797 | ||
798 | commit = lookup_commit(sha1); | |
799 | if (!commit) | |
b5b644a9 | 800 | die("couldn't look up newly created commit"); |
f5bbc322 KH |
801 | if (!commit || parse_commit(commit)) |
802 | die("could not parse newly created commit"); | |
803 | ||
804 | init_revisions(&rev, prefix); | |
805 | setup_revisions(0, NULL, &rev, NULL); | |
806 | ||
807 | rev.abbrev = 0; | |
808 | rev.diff = 1; | |
809 | rev.diffopt.output_format = | |
810 | DIFF_FORMAT_SHORTSTAT | DIFF_FORMAT_SUMMARY; | |
811 | ||
812 | rev.verbose_header = 1; | |
813 | rev.show_root_diff = 1; | |
4da45bef | 814 | get_commit_format("format:%h: %s", &rev); |
bf82a150 | 815 | rev.always_show_header = 0; |
3eb2a15e JH |
816 | rev.diffopt.detect_rename = 1; |
817 | rev.diffopt.rename_limit = 100; | |
818 | rev.diffopt.break_opt = 0; | |
15964563 | 819 | diff_setup_done(&rev.diffopt); |
f5bbc322 KH |
820 | |
821 | printf("Created %scommit ", initial_commit ? "initial " : ""); | |
822 | ||
bf82a150 JH |
823 | if (!log_tree_commit(&rev, commit)) { |
824 | struct strbuf buf = STRBUF_INIT; | |
825 | format_commit_message(commit, "%h: %s", &buf); | |
826 | printf("%s\n", buf.buf); | |
827 | strbuf_release(&buf); | |
828 | } | |
f5bbc322 KH |
829 | } |
830 | ||
831 | int git_commit_config(const char *k, const char *v) | |
832 | { | |
833 | if (!strcmp(k, "commit.template")) { | |
d865eb2a JH |
834 | if (!v) |
835 | return config_error_nonbool(v); | |
f5bbc322 KH |
836 | template_file = xstrdup(v); |
837 | return 0; | |
838 | } | |
839 | ||
840 | return git_status_config(k, v); | |
841 | } | |
842 | ||
843 | static const char commit_utf8_warn[] = | |
844 | "Warning: commit message does not conform to UTF-8.\n" | |
845 | "You may want to amend it after fixing the message, or set the config\n" | |
846 | "variable i18n.commitencoding to the encoding your project uses.\n"; | |
847 | ||
7c3fd25d LT |
848 | static void add_parent(struct strbuf *sb, const unsigned char *sha1) |
849 | { | |
850 | struct object *obj = parse_object(sha1); | |
851 | const char *parent = sha1_to_hex(sha1); | |
852 | if (!obj) | |
853 | die("Unable to find commit parent %s", parent); | |
854 | if (obj->type != OBJ_COMMIT) | |
855 | die("Parent %s isn't a proper commit", parent); | |
856 | strbuf_addf(sb, "parent %s\n", parent); | |
857 | } | |
858 | ||
f5bbc322 KH |
859 | int cmd_commit(int argc, const char **argv, const char *prefix) |
860 | { | |
18abc2db | 861 | int header_len; |
f5bbc322 KH |
862 | struct strbuf sb; |
863 | const char *index_file, *reflog_msg; | |
99a12694 | 864 | char *nl, *p; |
f5bbc322 KH |
865 | unsigned char commit_sha1[20]; |
866 | struct ref_lock *ref_lock; | |
867 | ||
868 | git_config(git_commit_config); | |
869 | ||
2f02b25f | 870 | argc = parse_and_validate_options(argc, argv, builtin_commit_usage); |
f5bbc322 | 871 | |
f64fe7b4 | 872 | index_file = prepare_index(argc, argv, prefix); |
f5bbc322 | 873 | |
ec84bd00 PB |
874 | /* Set up everything for writing the commit object. This includes |
875 | running hooks, writing the trees, and interacting with the user. */ | |
876 | if (!prepare_to_commit(index_file, prefix)) { | |
2888605c | 877 | rollback_index_files(); |
f5bbc322 KH |
878 | return 1; |
879 | } | |
880 | ||
2888605c JH |
881 | /* |
882 | * The commit object | |
883 | */ | |
884 | strbuf_init(&sb, 0); | |
f5bbc322 KH |
885 | strbuf_addf(&sb, "tree %s\n", |
886 | sha1_to_hex(active_cache_tree->sha1)); | |
887 | ||
888 | /* Determine parents */ | |
889 | if (initial_commit) { | |
890 | reflog_msg = "commit (initial)"; | |
f5bbc322 KH |
891 | } else if (amend) { |
892 | struct commit_list *c; | |
893 | struct commit *commit; | |
894 | ||
895 | reflog_msg = "commit (amend)"; | |
896 | commit = lookup_commit(head_sha1); | |
897 | if (!commit || parse_commit(commit)) | |
898 | die("could not parse HEAD commit"); | |
899 | ||
900 | for (c = commit->parents; c; c = c->next) | |
7c3fd25d | 901 | add_parent(&sb, c->item->object.sha1); |
f5bbc322 KH |
902 | } else if (in_merge) { |
903 | struct strbuf m; | |
904 | FILE *fp; | |
905 | ||
906 | reflog_msg = "commit (merge)"; | |
7c3fd25d | 907 | add_parent(&sb, head_sha1); |
f5bbc322 KH |
908 | strbuf_init(&m, 0); |
909 | fp = fopen(git_path("MERGE_HEAD"), "r"); | |
910 | if (fp == NULL) | |
911 | die("could not open %s for reading: %s", | |
912 | git_path("MERGE_HEAD"), strerror(errno)); | |
7c3fd25d LT |
913 | while (strbuf_getline(&m, fp, '\n') != EOF) { |
914 | unsigned char sha1[20]; | |
915 | if (get_sha1_hex(m.buf, sha1) < 0) | |
916 | die("Corrupt MERGE_HEAD file (%s)", m.buf); | |
917 | add_parent(&sb, sha1); | |
918 | } | |
f5bbc322 KH |
919 | fclose(fp); |
920 | strbuf_release(&m); | |
921 | } else { | |
922 | reflog_msg = "commit"; | |
923 | strbuf_addf(&sb, "parent %s\n", sha1_to_hex(head_sha1)); | |
924 | } | |
925 | ||
926 | determine_author_info(&sb); | |
774751a8 | 927 | strbuf_addf(&sb, "committer %s\n", git_committer_info(IDENT_ERROR_ON_NO_NAME)); |
f5bbc322 KH |
928 | if (!is_encoding_utf8(git_commit_encoding)) |
929 | strbuf_addf(&sb, "encoding %s\n", git_commit_encoding); | |
930 | strbuf_addch(&sb, '\n'); | |
931 | ||
ec84bd00 | 932 | /* Finally, get the commit message */ |
f5bbc322 | 933 | header_len = sb.len; |
740001a5 JH |
934 | if (strbuf_read_file(&sb, git_path(commit_editmsg), 0) < 0) { |
935 | rollback_index_files(); | |
936 | die("could not read commit message"); | |
937 | } | |
99a12694 KH |
938 | |
939 | /* Truncate the message just before the diff, if any. */ | |
940 | p = strstr(sb.buf, "\ndiff --git a/"); | |
941 | if (p != NULL) | |
a98b8191 | 942 | strbuf_setlen(&sb, p - sb.buf + 1); |
99a12694 | 943 | |
5f065737 AR |
944 | if (cleanup_mode != CLEANUP_NONE) |
945 | stripspace(&sb, cleanup_mode == CLEANUP_ALL); | |
2888605c JH |
946 | if (sb.len < header_len || message_is_empty(&sb, header_len)) { |
947 | rollback_index_files(); | |
b5b644a9 | 948 | die("no commit message? aborting commit."); |
2888605c | 949 | } |
f5bbc322 KH |
950 | strbuf_addch(&sb, '\0'); |
951 | if (is_encoding_utf8(git_commit_encoding) && !is_utf8(sb.buf)) | |
952 | fprintf(stderr, commit_utf8_warn); | |
953 | ||
2888605c JH |
954 | if (write_sha1_file(sb.buf, sb.len - 1, commit_type, commit_sha1)) { |
955 | rollback_index_files(); | |
f5bbc322 | 956 | die("failed to write commit object"); |
2888605c | 957 | } |
f5bbc322 KH |
958 | |
959 | ref_lock = lock_any_ref_for_update("HEAD", | |
960 | initial_commit ? NULL : head_sha1, | |
961 | 0); | |
962 | ||
963 | nl = strchr(sb.buf + header_len, '\n'); | |
741707b1 JS |
964 | if (nl) |
965 | strbuf_setlen(&sb, nl + 1 - sb.buf); | |
966 | else | |
967 | strbuf_addch(&sb, '\n'); | |
968 | strbuf_remove(&sb, 0, header_len); | |
969 | strbuf_insert(&sb, 0, reflog_msg, strlen(reflog_msg)); | |
970 | strbuf_insert(&sb, strlen(reflog_msg), ": ", 2); | |
f5bbc322 | 971 | |
2888605c JH |
972 | if (!ref_lock) { |
973 | rollback_index_files(); | |
f5bbc322 | 974 | die("cannot lock HEAD ref"); |
2888605c JH |
975 | } |
976 | if (write_ref_sha1(ref_lock, commit_sha1, sb.buf) < 0) { | |
977 | rollback_index_files(); | |
f5bbc322 | 978 | die("cannot update HEAD ref"); |
2888605c | 979 | } |
f5bbc322 KH |
980 | |
981 | unlink(git_path("MERGE_HEAD")); | |
982 | unlink(git_path("MERGE_MSG")); | |
5a95b855 | 983 | unlink(git_path("SQUASH_MSG")); |
f5bbc322 | 984 | |
5a9dd399 BC |
985 | if (commit_index_files()) |
986 | die ("Repository has been updated, but unable to write\n" | |
987 | "new_index file. Check that disk is not full or quota is\n" | |
988 | "not exceeded, and then \"git reset HEAD\" to recover."); | |
f5bbc322 KH |
989 | |
990 | rerere(); | |
2888605c | 991 | run_hook(get_index_file(), "post-commit", NULL); |
f5bbc322 KH |
992 | if (!quiet) |
993 | print_summary(prefix, commit_sha1); | |
994 | ||
995 | return 0; | |
996 | } |