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1 | /* | |
2 | * Builtin "git log" and related commands (show, whatchanged) | |
3 | * | |
4 | * (C) Copyright 2006 Linus Torvalds | |
5 | * 2006 Junio Hamano | |
6 | */ | |
7 | #include "cache.h" | |
8 | #include "color.h" | |
9 | #include "commit.h" | |
10 | #include "diff.h" | |
11 | #include "revision.h" | |
12 | #include "log-tree.h" | |
13 | #include "builtin.h" | |
14 | #include "tag.h" | |
15 | #include "reflog-walk.h" | |
16 | #include "patch-ids.h" | |
17 | #include "run-command.h" | |
18 | #include "shortlog.h" | |
19 | #include "remote.h" | |
20 | #include "string-list.h" | |
21 | #include "parse-options.h" | |
22 | ||
23 | /* Set a default date-time format for git log ("log.date" config variable) */ | |
24 | static const char *default_date_mode = NULL; | |
25 | ||
26 | static int default_show_root = 1; | |
27 | static int decoration_style; | |
28 | static const char *fmt_patch_subject_prefix = "PATCH"; | |
29 | static const char *fmt_pretty; | |
30 | ||
31 | static const char * const builtin_log_usage = | |
32 | "git log [<options>] [<since>..<until>] [[--] <path>...]\n" | |
33 | " or: git show [options] <object>..."; | |
34 | ||
35 | static int parse_decoration_style(const char *var, const char *value) | |
36 | { | |
37 | switch (git_config_maybe_bool(var, value)) { | |
38 | case 1: | |
39 | return DECORATE_SHORT_REFS; | |
40 | case 0: | |
41 | return 0; | |
42 | default: | |
43 | break; | |
44 | } | |
45 | if (!strcmp(value, "full")) | |
46 | return DECORATE_FULL_REFS; | |
47 | else if (!strcmp(value, "short")) | |
48 | return DECORATE_SHORT_REFS; | |
49 | return -1; | |
50 | } | |
51 | ||
52 | static void cmd_log_init(int argc, const char **argv, const char *prefix, | |
53 | struct rev_info *rev, struct setup_revision_opt *opt) | |
54 | { | |
55 | int i; | |
56 | int decoration_given = 0; | |
57 | struct userformat_want w; | |
58 | ||
59 | rev->abbrev = DEFAULT_ABBREV; | |
60 | rev->commit_format = CMIT_FMT_DEFAULT; | |
61 | if (fmt_pretty) | |
62 | get_commit_format(fmt_pretty, rev); | |
63 | rev->verbose_header = 1; | |
64 | DIFF_OPT_SET(&rev->diffopt, RECURSIVE); | |
65 | rev->show_root_diff = default_show_root; | |
66 | rev->subject_prefix = fmt_patch_subject_prefix; | |
67 | DIFF_OPT_SET(&rev->diffopt, ALLOW_TEXTCONV); | |
68 | ||
69 | if (default_date_mode) | |
70 | rev->date_mode = parse_date_format(default_date_mode); | |
71 | ||
72 | /* | |
73 | * Check for -h before setup_revisions(), or "git log -h" will | |
74 | * fail when run without a git directory. | |
75 | */ | |
76 | if (argc == 2 && !strcmp(argv[1], "-h")) | |
77 | usage(builtin_log_usage); | |
78 | argc = setup_revisions(argc, argv, rev, opt); | |
79 | ||
80 | memset(&w, 0, sizeof(w)); | |
81 | userformat_find_requirements(NULL, &w); | |
82 | ||
83 | if (!rev->show_notes_given && (!rev->pretty_given || w.notes)) | |
84 | rev->show_notes = 1; | |
85 | if (rev->show_notes) | |
86 | init_display_notes(&rev->notes_opt); | |
87 | ||
88 | if (rev->diffopt.pickaxe || rev->diffopt.filter) | |
89 | rev->always_show_header = 0; | |
90 | if (DIFF_OPT_TST(&rev->diffopt, FOLLOW_RENAMES)) { | |
91 | rev->always_show_header = 0; | |
92 | if (rev->diffopt.nr_paths != 1) | |
93 | usage("git logs can only follow renames on one pathname at a time"); | |
94 | } | |
95 | for (i = 1; i < argc; i++) { | |
96 | const char *arg = argv[i]; | |
97 | if (!strcmp(arg, "--decorate")) { | |
98 | decoration_style = DECORATE_SHORT_REFS; | |
99 | decoration_given = 1; | |
100 | } else if (!prefixcmp(arg, "--decorate=")) { | |
101 | const char *v = skip_prefix(arg, "--decorate="); | |
102 | decoration_style = parse_decoration_style(arg, v); | |
103 | if (decoration_style < 0) | |
104 | die("invalid --decorate option: %s", arg); | |
105 | decoration_given = 1; | |
106 | } else if (!strcmp(arg, "--no-decorate")) { | |
107 | decoration_style = 0; | |
108 | } else if (!strcmp(arg, "--source")) { | |
109 | rev->show_source = 1; | |
110 | } else if (!strcmp(arg, "-h")) { | |
111 | usage(builtin_log_usage); | |
112 | } else | |
113 | die("unrecognized argument: %s", arg); | |
114 | } | |
115 | ||
116 | /* | |
117 | * defeat log.decorate configuration interacting with --pretty=raw | |
118 | * from the command line. | |
119 | */ | |
120 | if (!decoration_given && rev->pretty_given | |
121 | && rev->commit_format == CMIT_FMT_RAW) | |
122 | decoration_style = 0; | |
123 | ||
124 | if (decoration_style) { | |
125 | rev->show_decorations = 1; | |
126 | load_ref_decorations(decoration_style); | |
127 | } | |
128 | setup_pager(); | |
129 | } | |
130 | ||
131 | /* | |
132 | * This gives a rough estimate for how many commits we | |
133 | * will print out in the list. | |
134 | */ | |
135 | static int estimate_commit_count(struct rev_info *rev, struct commit_list *list) | |
136 | { | |
137 | int n = 0; | |
138 | ||
139 | while (list) { | |
140 | struct commit *commit = list->item; | |
141 | unsigned int flags = commit->object.flags; | |
142 | list = list->next; | |
143 | if (!(flags & (TREESAME | UNINTERESTING))) | |
144 | n++; | |
145 | } | |
146 | return n; | |
147 | } | |
148 | ||
149 | static void show_early_header(struct rev_info *rev, const char *stage, int nr) | |
150 | { | |
151 | if (rev->shown_one) { | |
152 | rev->shown_one = 0; | |
153 | if (rev->commit_format != CMIT_FMT_ONELINE) | |
154 | putchar(rev->diffopt.line_termination); | |
155 | } | |
156 | printf("Final output: %d %s\n", nr, stage); | |
157 | } | |
158 | ||
159 | static struct itimerval early_output_timer; | |
160 | ||
161 | static void log_show_early(struct rev_info *revs, struct commit_list *list) | |
162 | { | |
163 | int i = revs->early_output; | |
164 | int show_header = 1; | |
165 | ||
166 | sort_in_topological_order(&list, revs->lifo); | |
167 | while (list && i) { | |
168 | struct commit *commit = list->item; | |
169 | switch (simplify_commit(revs, commit)) { | |
170 | case commit_show: | |
171 | if (show_header) { | |
172 | int n = estimate_commit_count(revs, list); | |
173 | show_early_header(revs, "incomplete", n); | |
174 | show_header = 0; | |
175 | } | |
176 | log_tree_commit(revs, commit); | |
177 | i--; | |
178 | break; | |
179 | case commit_ignore: | |
180 | break; | |
181 | case commit_error: | |
182 | return; | |
183 | } | |
184 | list = list->next; | |
185 | } | |
186 | ||
187 | /* Did we already get enough commits for the early output? */ | |
188 | if (!i) | |
189 | return; | |
190 | ||
191 | /* | |
192 | * ..if no, then repeat it twice a second until we | |
193 | * do. | |
194 | * | |
195 | * NOTE! We don't use "it_interval", because if the | |
196 | * reader isn't listening, we want our output to be | |
197 | * throttled by the writing, and not have the timer | |
198 | * trigger every second even if we're blocked on a | |
199 | * reader! | |
200 | */ | |
201 | early_output_timer.it_value.tv_sec = 0; | |
202 | early_output_timer.it_value.tv_usec = 500000; | |
203 | setitimer(ITIMER_REAL, &early_output_timer, NULL); | |
204 | } | |
205 | ||
206 | static void early_output(int signal) | |
207 | { | |
208 | show_early_output = log_show_early; | |
209 | } | |
210 | ||
211 | static void setup_early_output(struct rev_info *rev) | |
212 | { | |
213 | struct sigaction sa; | |
214 | ||
215 | /* | |
216 | * Set up the signal handler, minimally intrusively: | |
217 | * we only set a single volatile integer word (not | |
218 | * using sigatomic_t - trying to avoid unnecessary | |
219 | * system dependencies and headers), and using | |
220 | * SA_RESTART. | |
221 | */ | |
222 | memset(&sa, 0, sizeof(sa)); | |
223 | sa.sa_handler = early_output; | |
224 | sigemptyset(&sa.sa_mask); | |
225 | sa.sa_flags = SA_RESTART; | |
226 | sigaction(SIGALRM, &sa, NULL); | |
227 | ||
228 | /* | |
229 | * If we can get the whole output in less than a | |
230 | * tenth of a second, don't even bother doing the | |
231 | * early-output thing.. | |
232 | * | |
233 | * This is a one-time-only trigger. | |
234 | */ | |
235 | early_output_timer.it_value.tv_sec = 0; | |
236 | early_output_timer.it_value.tv_usec = 100000; | |
237 | setitimer(ITIMER_REAL, &early_output_timer, NULL); | |
238 | } | |
239 | ||
240 | static void finish_early_output(struct rev_info *rev) | |
241 | { | |
242 | int n = estimate_commit_count(rev, rev->commits); | |
243 | signal(SIGALRM, SIG_IGN); | |
244 | show_early_header(rev, "done", n); | |
245 | } | |
246 | ||
247 | static int cmd_log_walk(struct rev_info *rev) | |
248 | { | |
249 | struct commit *commit; | |
250 | ||
251 | if (rev->early_output) | |
252 | setup_early_output(rev); | |
253 | ||
254 | if (prepare_revision_walk(rev)) | |
255 | die("revision walk setup failed"); | |
256 | ||
257 | if (rev->early_output) | |
258 | finish_early_output(rev); | |
259 | ||
260 | /* | |
261 | * For --check and --exit-code, the exit code is based on CHECK_FAILED | |
262 | * and HAS_CHANGES being accumulated in rev->diffopt, so be careful to | |
263 | * retain that state information if replacing rev->diffopt in this loop | |
264 | */ | |
265 | while ((commit = get_revision(rev)) != NULL) { | |
266 | if (!log_tree_commit(rev, commit) && | |
267 | rev->max_count >= 0) | |
268 | /* | |
269 | * We decremented max_count in get_revision, | |
270 | * but we didn't actually show the commit. | |
271 | */ | |
272 | rev->max_count++; | |
273 | if (!rev->reflog_info) { | |
274 | /* we allow cycles in reflog ancestry */ | |
275 | free(commit->buffer); | |
276 | commit->buffer = NULL; | |
277 | } | |
278 | free_commit_list(commit->parents); | |
279 | commit->parents = NULL; | |
280 | } | |
281 | if (rev->diffopt.output_format & DIFF_FORMAT_CHECKDIFF && | |
282 | DIFF_OPT_TST(&rev->diffopt, CHECK_FAILED)) { | |
283 | return 02; | |
284 | } | |
285 | return diff_result_code(&rev->diffopt, 0); | |
286 | } | |
287 | ||
288 | static int git_log_config(const char *var, const char *value, void *cb) | |
289 | { | |
290 | if (!strcmp(var, "format.pretty")) | |
291 | return git_config_string(&fmt_pretty, var, value); | |
292 | if (!strcmp(var, "format.subjectprefix")) | |
293 | return git_config_string(&fmt_patch_subject_prefix, var, value); | |
294 | if (!strcmp(var, "log.date")) | |
295 | return git_config_string(&default_date_mode, var, value); | |
296 | if (!strcmp(var, "log.decorate")) { | |
297 | decoration_style = parse_decoration_style(var, value); | |
298 | if (decoration_style < 0) | |
299 | decoration_style = 0; /* maybe warn? */ | |
300 | return 0; | |
301 | } | |
302 | if (!strcmp(var, "log.showroot")) { | |
303 | default_show_root = git_config_bool(var, value); | |
304 | return 0; | |
305 | } | |
306 | if (!prefixcmp(var, "color.decorate.")) | |
307 | return parse_decorate_color_config(var, 15, value); | |
308 | ||
309 | return git_diff_ui_config(var, value, cb); | |
310 | } | |
311 | ||
312 | int cmd_whatchanged(int argc, const char **argv, const char *prefix) | |
313 | { | |
314 | struct rev_info rev; | |
315 | struct setup_revision_opt opt; | |
316 | ||
317 | git_config(git_log_config, NULL); | |
318 | ||
319 | if (diff_use_color_default == -1) | |
320 | diff_use_color_default = git_use_color_default; | |
321 | ||
322 | init_revisions(&rev, prefix); | |
323 | rev.diff = 1; | |
324 | rev.simplify_history = 0; | |
325 | memset(&opt, 0, sizeof(opt)); | |
326 | opt.def = "HEAD"; | |
327 | cmd_log_init(argc, argv, prefix, &rev, &opt); | |
328 | if (!rev.diffopt.output_format) | |
329 | rev.diffopt.output_format = DIFF_FORMAT_RAW; | |
330 | return cmd_log_walk(&rev); | |
331 | } | |
332 | ||
333 | static void show_tagger(char *buf, int len, struct rev_info *rev) | |
334 | { | |
335 | struct strbuf out = STRBUF_INIT; | |
336 | ||
337 | pp_user_info("Tagger", rev->commit_format, &out, buf, rev->date_mode, | |
338 | get_log_output_encoding()); | |
339 | printf("%s", out.buf); | |
340 | strbuf_release(&out); | |
341 | } | |
342 | ||
343 | static int show_object(const unsigned char *sha1, int show_tag_object, | |
344 | struct rev_info *rev) | |
345 | { | |
346 | unsigned long size; | |
347 | enum object_type type; | |
348 | char *buf = read_sha1_file(sha1, &type, &size); | |
349 | int offset = 0; | |
350 | ||
351 | if (!buf) | |
352 | return error("Could not read object %s", sha1_to_hex(sha1)); | |
353 | ||
354 | if (show_tag_object) | |
355 | while (offset < size && buf[offset] != '\n') { | |
356 | int new_offset = offset + 1; | |
357 | while (new_offset < size && buf[new_offset++] != '\n') | |
358 | ; /* do nothing */ | |
359 | if (!prefixcmp(buf + offset, "tagger ")) | |
360 | show_tagger(buf + offset + 7, | |
361 | new_offset - offset - 7, rev); | |
362 | offset = new_offset; | |
363 | } | |
364 | ||
365 | if (offset < size) | |
366 | fwrite(buf + offset, size - offset, 1, stdout); | |
367 | free(buf); | |
368 | return 0; | |
369 | } | |
370 | ||
371 | static int show_tree_object(const unsigned char *sha1, | |
372 | const char *base, int baselen, | |
373 | const char *pathname, unsigned mode, int stage, void *context) | |
374 | { | |
375 | printf("%s%s\n", pathname, S_ISDIR(mode) ? "/" : ""); | |
376 | return 0; | |
377 | } | |
378 | ||
379 | static void show_rev_tweak_rev(struct rev_info *rev, struct setup_revision_opt *opt) | |
380 | { | |
381 | if (rev->ignore_merges) { | |
382 | /* There was no "-m" on the command line */ | |
383 | rev->ignore_merges = 0; | |
384 | if (!rev->first_parent_only && !rev->combine_merges) { | |
385 | /* No "--first-parent", "-c", nor "--cc" */ | |
386 | rev->combine_merges = 1; | |
387 | rev->dense_combined_merges = 1; | |
388 | } | |
389 | } | |
390 | if (!rev->diffopt.output_format) | |
391 | rev->diffopt.output_format = DIFF_FORMAT_PATCH; | |
392 | } | |
393 | ||
394 | int cmd_show(int argc, const char **argv, const char *prefix) | |
395 | { | |
396 | struct rev_info rev; | |
397 | struct object_array_entry *objects; | |
398 | struct setup_revision_opt opt; | |
399 | int i, count, ret = 0; | |
400 | ||
401 | git_config(git_log_config, NULL); | |
402 | ||
403 | if (diff_use_color_default == -1) | |
404 | diff_use_color_default = git_use_color_default; | |
405 | ||
406 | init_revisions(&rev, prefix); | |
407 | rev.diff = 1; | |
408 | rev.always_show_header = 1; | |
409 | rev.no_walk = 1; | |
410 | memset(&opt, 0, sizeof(opt)); | |
411 | opt.def = "HEAD"; | |
412 | opt.tweak = show_rev_tweak_rev; | |
413 | cmd_log_init(argc, argv, prefix, &rev, &opt); | |
414 | ||
415 | count = rev.pending.nr; | |
416 | objects = rev.pending.objects; | |
417 | for (i = 0; i < count && !ret; i++) { | |
418 | struct object *o = objects[i].item; | |
419 | const char *name = objects[i].name; | |
420 | switch (o->type) { | |
421 | case OBJ_BLOB: | |
422 | ret = show_object(o->sha1, 0, NULL); | |
423 | break; | |
424 | case OBJ_TAG: { | |
425 | struct tag *t = (struct tag *)o; | |
426 | ||
427 | if (rev.shown_one) | |
428 | putchar('\n'); | |
429 | printf("%stag %s%s\n", | |
430 | diff_get_color_opt(&rev.diffopt, DIFF_COMMIT), | |
431 | t->tag, | |
432 | diff_get_color_opt(&rev.diffopt, DIFF_RESET)); | |
433 | ret = show_object(o->sha1, 1, &rev); | |
434 | rev.shown_one = 1; | |
435 | if (ret) | |
436 | break; | |
437 | o = parse_object(t->tagged->sha1); | |
438 | if (!o) | |
439 | ret = error("Could not read object %s", | |
440 | sha1_to_hex(t->tagged->sha1)); | |
441 | objects[i].item = o; | |
442 | i--; | |
443 | break; | |
444 | } | |
445 | case OBJ_TREE: | |
446 | if (rev.shown_one) | |
447 | putchar('\n'); | |
448 | printf("%stree %s%s\n\n", | |
449 | diff_get_color_opt(&rev.diffopt, DIFF_COMMIT), | |
450 | name, | |
451 | diff_get_color_opt(&rev.diffopt, DIFF_RESET)); | |
452 | read_tree_recursive((struct tree *)o, "", 0, 0, NULL, | |
453 | show_tree_object, NULL); | |
454 | rev.shown_one = 1; | |
455 | break; | |
456 | case OBJ_COMMIT: | |
457 | rev.pending.nr = rev.pending.alloc = 0; | |
458 | rev.pending.objects = NULL; | |
459 | add_object_array(o, name, &rev.pending); | |
460 | ret = cmd_log_walk(&rev); | |
461 | break; | |
462 | default: | |
463 | ret = error("Unknown type: %d", o->type); | |
464 | } | |
465 | } | |
466 | free(objects); | |
467 | return ret; | |
468 | } | |
469 | ||
470 | /* | |
471 | * This is equivalent to "git log -g --abbrev-commit --pretty=oneline" | |
472 | */ | |
473 | int cmd_log_reflog(int argc, const char **argv, const char *prefix) | |
474 | { | |
475 | struct rev_info rev; | |
476 | struct setup_revision_opt opt; | |
477 | ||
478 | git_config(git_log_config, NULL); | |
479 | ||
480 | if (diff_use_color_default == -1) | |
481 | diff_use_color_default = git_use_color_default; | |
482 | ||
483 | init_revisions(&rev, prefix); | |
484 | init_reflog_walk(&rev.reflog_info); | |
485 | rev.abbrev_commit = 1; | |
486 | rev.verbose_header = 1; | |
487 | memset(&opt, 0, sizeof(opt)); | |
488 | opt.def = "HEAD"; | |
489 | cmd_log_init(argc, argv, prefix, &rev, &opt); | |
490 | ||
491 | /* | |
492 | * This means that we override whatever commit format the user gave | |
493 | * on the cmd line. Sad, but cmd_log_init() currently doesn't | |
494 | * allow us to set a different default. | |
495 | */ | |
496 | rev.commit_format = CMIT_FMT_ONELINE; | |
497 | rev.use_terminator = 1; | |
498 | rev.always_show_header = 1; | |
499 | ||
500 | return cmd_log_walk(&rev); | |
501 | } | |
502 | ||
503 | int cmd_log(int argc, const char **argv, const char *prefix) | |
504 | { | |
505 | struct rev_info rev; | |
506 | struct setup_revision_opt opt; | |
507 | ||
508 | git_config(git_log_config, NULL); | |
509 | ||
510 | if (diff_use_color_default == -1) | |
511 | diff_use_color_default = git_use_color_default; | |
512 | ||
513 | init_revisions(&rev, prefix); | |
514 | rev.always_show_header = 1; | |
515 | memset(&opt, 0, sizeof(opt)); | |
516 | opt.def = "HEAD"; | |
517 | cmd_log_init(argc, argv, prefix, &rev, &opt); | |
518 | return cmd_log_walk(&rev); | |
519 | } | |
520 | ||
521 | /* format-patch */ | |
522 | ||
523 | static const char *fmt_patch_suffix = ".patch"; | |
524 | static int numbered = 0; | |
525 | static int auto_number = 1; | |
526 | ||
527 | static char *default_attach = NULL; | |
528 | ||
529 | static struct string_list extra_hdr; | |
530 | static struct string_list extra_to; | |
531 | static struct string_list extra_cc; | |
532 | ||
533 | static void add_header(const char *value) | |
534 | { | |
535 | struct string_list_item *item; | |
536 | int len = strlen(value); | |
537 | while (len && value[len - 1] == '\n') | |
538 | len--; | |
539 | ||
540 | if (!strncasecmp(value, "to: ", 4)) { | |
541 | item = string_list_append(&extra_to, value + 4); | |
542 | len -= 4; | |
543 | } else if (!strncasecmp(value, "cc: ", 4)) { | |
544 | item = string_list_append(&extra_cc, value + 4); | |
545 | len -= 4; | |
546 | } else { | |
547 | item = string_list_append(&extra_hdr, value); | |
548 | } | |
549 | ||
550 | item->string[len] = '\0'; | |
551 | } | |
552 | ||
553 | #define THREAD_SHALLOW 1 | |
554 | #define THREAD_DEEP 2 | |
555 | static int thread; | |
556 | static int do_signoff; | |
557 | static const char *signature = git_version_string; | |
558 | ||
559 | static int git_format_config(const char *var, const char *value, void *cb) | |
560 | { | |
561 | if (!strcmp(var, "format.headers")) { | |
562 | if (!value) | |
563 | die("format.headers without value"); | |
564 | add_header(value); | |
565 | return 0; | |
566 | } | |
567 | if (!strcmp(var, "format.suffix")) | |
568 | return git_config_string(&fmt_patch_suffix, var, value); | |
569 | if (!strcmp(var, "format.to")) { | |
570 | if (!value) | |
571 | return config_error_nonbool(var); | |
572 | string_list_append(&extra_to, value); | |
573 | return 0; | |
574 | } | |
575 | if (!strcmp(var, "format.cc")) { | |
576 | if (!value) | |
577 | return config_error_nonbool(var); | |
578 | string_list_append(&extra_cc, value); | |
579 | return 0; | |
580 | } | |
581 | if (!strcmp(var, "diff.color") || !strcmp(var, "color.diff")) { | |
582 | return 0; | |
583 | } | |
584 | if (!strcmp(var, "format.numbered")) { | |
585 | if (value && !strcasecmp(value, "auto")) { | |
586 | auto_number = 1; | |
587 | return 0; | |
588 | } | |
589 | numbered = git_config_bool(var, value); | |
590 | auto_number = auto_number && numbered; | |
591 | return 0; | |
592 | } | |
593 | if (!strcmp(var, "format.attach")) { | |
594 | if (value && *value) | |
595 | default_attach = xstrdup(value); | |
596 | else | |
597 | default_attach = xstrdup(git_version_string); | |
598 | return 0; | |
599 | } | |
600 | if (!strcmp(var, "format.thread")) { | |
601 | if (value && !strcasecmp(value, "deep")) { | |
602 | thread = THREAD_DEEP; | |
603 | return 0; | |
604 | } | |
605 | if (value && !strcasecmp(value, "shallow")) { | |
606 | thread = THREAD_SHALLOW; | |
607 | return 0; | |
608 | } | |
609 | thread = git_config_bool(var, value) && THREAD_SHALLOW; | |
610 | return 0; | |
611 | } | |
612 | if (!strcmp(var, "format.signoff")) { | |
613 | do_signoff = git_config_bool(var, value); | |
614 | return 0; | |
615 | } | |
616 | if (!strcmp(var, "format.signature")) | |
617 | return git_config_string(&signature, var, value); | |
618 | ||
619 | return git_log_config(var, value, cb); | |
620 | } | |
621 | ||
622 | static FILE *realstdout = NULL; | |
623 | static const char *output_directory = NULL; | |
624 | static int outdir_offset; | |
625 | ||
626 | static int reopen_stdout(struct commit *commit, struct rev_info *rev) | |
627 | { | |
628 | struct strbuf filename = STRBUF_INIT; | |
629 | int suffix_len = strlen(fmt_patch_suffix) + 1; | |
630 | ||
631 | if (output_directory) { | |
632 | strbuf_addstr(&filename, output_directory); | |
633 | if (filename.len >= | |
634 | PATH_MAX - FORMAT_PATCH_NAME_MAX - suffix_len) | |
635 | return error("name of output directory is too long"); | |
636 | if (filename.buf[filename.len - 1] != '/') | |
637 | strbuf_addch(&filename, '/'); | |
638 | } | |
639 | ||
640 | get_patch_filename(commit, rev->nr, fmt_patch_suffix, &filename); | |
641 | ||
642 | if (!DIFF_OPT_TST(&rev->diffopt, QUICK)) | |
643 | fprintf(realstdout, "%s\n", filename.buf + outdir_offset); | |
644 | ||
645 | if (freopen(filename.buf, "w", stdout) == NULL) | |
646 | return error("Cannot open patch file %s", filename.buf); | |
647 | ||
648 | strbuf_release(&filename); | |
649 | return 0; | |
650 | } | |
651 | ||
652 | static void get_patch_ids(struct rev_info *rev, struct patch_ids *ids, const char *prefix) | |
653 | { | |
654 | struct rev_info check_rev; | |
655 | struct commit *commit; | |
656 | struct object *o1, *o2; | |
657 | unsigned flags1, flags2; | |
658 | ||
659 | if (rev->pending.nr != 2) | |
660 | die("Need exactly one range."); | |
661 | ||
662 | o1 = rev->pending.objects[0].item; | |
663 | flags1 = o1->flags; | |
664 | o2 = rev->pending.objects[1].item; | |
665 | flags2 = o2->flags; | |
666 | ||
667 | if ((flags1 & UNINTERESTING) == (flags2 & UNINTERESTING)) | |
668 | die("Not a range."); | |
669 | ||
670 | init_patch_ids(ids); | |
671 | ||
672 | /* given a range a..b get all patch ids for b..a */ | |
673 | init_revisions(&check_rev, prefix); | |
674 | o1->flags ^= UNINTERESTING; | |
675 | o2->flags ^= UNINTERESTING; | |
676 | add_pending_object(&check_rev, o1, "o1"); | |
677 | add_pending_object(&check_rev, o2, "o2"); | |
678 | if (prepare_revision_walk(&check_rev)) | |
679 | die("revision walk setup failed"); | |
680 | ||
681 | while ((commit = get_revision(&check_rev)) != NULL) { | |
682 | /* ignore merges */ | |
683 | if (commit->parents && commit->parents->next) | |
684 | continue; | |
685 | ||
686 | add_commit_patch_id(commit, ids); | |
687 | } | |
688 | ||
689 | /* reset for next revision walk */ | |
690 | clear_commit_marks((struct commit *)o1, | |
691 | SEEN | UNINTERESTING | SHOWN | ADDED); | |
692 | clear_commit_marks((struct commit *)o2, | |
693 | SEEN | UNINTERESTING | SHOWN | ADDED); | |
694 | o1->flags = flags1; | |
695 | o2->flags = flags2; | |
696 | } | |
697 | ||
698 | static void gen_message_id(struct rev_info *info, char *base) | |
699 | { | |
700 | const char *committer = git_committer_info(IDENT_WARN_ON_NO_NAME); | |
701 | const char *email_start = strrchr(committer, '<'); | |
702 | const char *email_end = strrchr(committer, '>'); | |
703 | struct strbuf buf = STRBUF_INIT; | |
704 | if (!email_start || !email_end || email_start > email_end - 1) | |
705 | die("Could not extract email from committer identity."); | |
706 | strbuf_addf(&buf, "%s.%lu.git.%.*s", base, | |
707 | (unsigned long) time(NULL), | |
708 | (int)(email_end - email_start - 1), email_start + 1); | |
709 | info->message_id = strbuf_detach(&buf, NULL); | |
710 | } | |
711 | ||
712 | static void print_signature(void) | |
713 | { | |
714 | if (signature && *signature) | |
715 | printf("-- \n%s\n\n", signature); | |
716 | } | |
717 | ||
718 | static void make_cover_letter(struct rev_info *rev, int use_stdout, | |
719 | int numbered, int numbered_files, | |
720 | struct commit *origin, | |
721 | int nr, struct commit **list, struct commit *head) | |
722 | { | |
723 | const char *committer; | |
724 | const char *subject_start = NULL; | |
725 | const char *body = "*** SUBJECT HERE ***\n\n*** BLURB HERE ***\n"; | |
726 | const char *msg; | |
727 | const char *extra_headers = rev->extra_headers; | |
728 | struct shortlog log; | |
729 | struct strbuf sb = STRBUF_INIT; | |
730 | int i; | |
731 | const char *encoding = "UTF-8"; | |
732 | struct diff_options opts; | |
733 | int need_8bit_cte = 0; | |
734 | struct commit *commit = NULL; | |
735 | ||
736 | if (rev->commit_format != CMIT_FMT_EMAIL) | |
737 | die("Cover letter needs email format"); | |
738 | ||
739 | committer = git_committer_info(0); | |
740 | ||
741 | if (!numbered_files) { | |
742 | /* | |
743 | * We fake a commit for the cover letter so we get the filename | |
744 | * desired. | |
745 | */ | |
746 | commit = xcalloc(1, sizeof(*commit)); | |
747 | commit->buffer = xmalloc(400); | |
748 | snprintf(commit->buffer, 400, | |
749 | "tree 0000000000000000000000000000000000000000\n" | |
750 | "parent %s\n" | |
751 | "author %s\n" | |
752 | "committer %s\n\n" | |
753 | "cover letter\n", | |
754 | sha1_to_hex(head->object.sha1), committer, committer); | |
755 | } | |
756 | ||
757 | if (!use_stdout && reopen_stdout(commit, rev)) | |
758 | return; | |
759 | ||
760 | if (commit) { | |
761 | ||
762 | free(commit->buffer); | |
763 | free(commit); | |
764 | } | |
765 | ||
766 | log_write_email_headers(rev, head, &subject_start, &extra_headers, | |
767 | &need_8bit_cte); | |
768 | ||
769 | for (i = 0; !need_8bit_cte && i < nr; i++) | |
770 | if (has_non_ascii(list[i]->buffer)) | |
771 | need_8bit_cte = 1; | |
772 | ||
773 | msg = body; | |
774 | pp_user_info(NULL, CMIT_FMT_EMAIL, &sb, committer, DATE_RFC2822, | |
775 | encoding); | |
776 | pp_title_line(CMIT_FMT_EMAIL, &msg, &sb, subject_start, extra_headers, | |
777 | encoding, need_8bit_cte); | |
778 | pp_remainder(CMIT_FMT_EMAIL, &msg, &sb, 0); | |
779 | printf("%s\n", sb.buf); | |
780 | ||
781 | strbuf_release(&sb); | |
782 | ||
783 | shortlog_init(&log); | |
784 | log.wrap_lines = 1; | |
785 | log.wrap = 72; | |
786 | log.in1 = 2; | |
787 | log.in2 = 4; | |
788 | for (i = 0; i < nr; i++) | |
789 | shortlog_add_commit(&log, list[i]); | |
790 | ||
791 | shortlog_output(&log); | |
792 | ||
793 | /* | |
794 | * We can only do diffstat with a unique reference point | |
795 | */ | |
796 | if (!origin) | |
797 | return; | |
798 | ||
799 | memcpy(&opts, &rev->diffopt, sizeof(opts)); | |
800 | opts.output_format = DIFF_FORMAT_SUMMARY | DIFF_FORMAT_DIFFSTAT; | |
801 | ||
802 | diff_setup_done(&opts); | |
803 | ||
804 | diff_tree_sha1(origin->tree->object.sha1, | |
805 | head->tree->object.sha1, | |
806 | "", &opts); | |
807 | diffcore_std(&opts); | |
808 | diff_flush(&opts); | |
809 | ||
810 | printf("\n"); | |
811 | print_signature(); | |
812 | } | |
813 | ||
814 | static const char *clean_message_id(const char *msg_id) | |
815 | { | |
816 | char ch; | |
817 | const char *a, *z, *m; | |
818 | ||
819 | m = msg_id; | |
820 | while ((ch = *m) && (isspace(ch) || (ch == '<'))) | |
821 | m++; | |
822 | a = m; | |
823 | z = NULL; | |
824 | while ((ch = *m)) { | |
825 | if (!isspace(ch) && (ch != '>')) | |
826 | z = m; | |
827 | m++; | |
828 | } | |
829 | if (!z) | |
830 | die("insane in-reply-to: %s", msg_id); | |
831 | if (++z == m) | |
832 | return a; | |
833 | return xmemdupz(a, z - a); | |
834 | } | |
835 | ||
836 | static const char *set_outdir(const char *prefix, const char *output_directory) | |
837 | { | |
838 | if (output_directory && is_absolute_path(output_directory)) | |
839 | return output_directory; | |
840 | ||
841 | if (!prefix || !*prefix) { | |
842 | if (output_directory) | |
843 | return output_directory; | |
844 | /* The user did not explicitly ask for "./" */ | |
845 | outdir_offset = 2; | |
846 | return "./"; | |
847 | } | |
848 | ||
849 | outdir_offset = strlen(prefix); | |
850 | if (!output_directory) | |
851 | return prefix; | |
852 | ||
853 | return xstrdup(prefix_filename(prefix, outdir_offset, | |
854 | output_directory)); | |
855 | } | |
856 | ||
857 | static const char * const builtin_format_patch_usage[] = { | |
858 | "git format-patch [options] [<since> | <revision range>]", | |
859 | NULL | |
860 | }; | |
861 | ||
862 | static int keep_subject = 0; | |
863 | ||
864 | static int keep_callback(const struct option *opt, const char *arg, int unset) | |
865 | { | |
866 | ((struct rev_info *)opt->value)->total = -1; | |
867 | keep_subject = 1; | |
868 | return 0; | |
869 | } | |
870 | ||
871 | static int subject_prefix = 0; | |
872 | ||
873 | static int subject_prefix_callback(const struct option *opt, const char *arg, | |
874 | int unset) | |
875 | { | |
876 | subject_prefix = 1; | |
877 | ((struct rev_info *)opt->value)->subject_prefix = arg; | |
878 | return 0; | |
879 | } | |
880 | ||
881 | static int numbered_cmdline_opt = 0; | |
882 | ||
883 | static int numbered_callback(const struct option *opt, const char *arg, | |
884 | int unset) | |
885 | { | |
886 | *(int *)opt->value = numbered_cmdline_opt = unset ? 0 : 1; | |
887 | if (unset) | |
888 | auto_number = 0; | |
889 | return 0; | |
890 | } | |
891 | ||
892 | static int no_numbered_callback(const struct option *opt, const char *arg, | |
893 | int unset) | |
894 | { | |
895 | return numbered_callback(opt, arg, 1); | |
896 | } | |
897 | ||
898 | static int output_directory_callback(const struct option *opt, const char *arg, | |
899 | int unset) | |
900 | { | |
901 | const char **dir = (const char **)opt->value; | |
902 | if (*dir) | |
903 | die("Two output directories?"); | |
904 | *dir = arg; | |
905 | return 0; | |
906 | } | |
907 | ||
908 | static int thread_callback(const struct option *opt, const char *arg, int unset) | |
909 | { | |
910 | int *thread = (int *)opt->value; | |
911 | if (unset) | |
912 | *thread = 0; | |
913 | else if (!arg || !strcmp(arg, "shallow")) | |
914 | *thread = THREAD_SHALLOW; | |
915 | else if (!strcmp(arg, "deep")) | |
916 | *thread = THREAD_DEEP; | |
917 | else | |
918 | return 1; | |
919 | return 0; | |
920 | } | |
921 | ||
922 | static int attach_callback(const struct option *opt, const char *arg, int unset) | |
923 | { | |
924 | struct rev_info *rev = (struct rev_info *)opt->value; | |
925 | if (unset) | |
926 | rev->mime_boundary = NULL; | |
927 | else if (arg) | |
928 | rev->mime_boundary = arg; | |
929 | else | |
930 | rev->mime_boundary = git_version_string; | |
931 | rev->no_inline = unset ? 0 : 1; | |
932 | return 0; | |
933 | } | |
934 | ||
935 | static int inline_callback(const struct option *opt, const char *arg, int unset) | |
936 | { | |
937 | struct rev_info *rev = (struct rev_info *)opt->value; | |
938 | if (unset) | |
939 | rev->mime_boundary = NULL; | |
940 | else if (arg) | |
941 | rev->mime_boundary = arg; | |
942 | else | |
943 | rev->mime_boundary = git_version_string; | |
944 | rev->no_inline = 0; | |
945 | return 0; | |
946 | } | |
947 | ||
948 | static int header_callback(const struct option *opt, const char *arg, int unset) | |
949 | { | |
950 | if (unset) { | |
951 | string_list_clear(&extra_hdr, 0); | |
952 | string_list_clear(&extra_to, 0); | |
953 | string_list_clear(&extra_cc, 0); | |
954 | } else { | |
955 | add_header(arg); | |
956 | } | |
957 | return 0; | |
958 | } | |
959 | ||
960 | static int to_callback(const struct option *opt, const char *arg, int unset) | |
961 | { | |
962 | if (unset) | |
963 | string_list_clear(&extra_to, 0); | |
964 | else | |
965 | string_list_append(&extra_to, arg); | |
966 | return 0; | |
967 | } | |
968 | ||
969 | static int cc_callback(const struct option *opt, const char *arg, int unset) | |
970 | { | |
971 | if (unset) | |
972 | string_list_clear(&extra_cc, 0); | |
973 | else | |
974 | string_list_append(&extra_cc, arg); | |
975 | return 0; | |
976 | } | |
977 | ||
978 | int cmd_format_patch(int argc, const char **argv, const char *prefix) | |
979 | { | |
980 | struct commit *commit; | |
981 | struct commit **list = NULL; | |
982 | struct rev_info rev; | |
983 | struct setup_revision_opt s_r_opt; | |
984 | int nr = 0, total, i; | |
985 | int use_stdout = 0; | |
986 | int start_number = -1; | |
987 | int numbered_files = 0; /* _just_ numbers */ | |
988 | int ignore_if_in_upstream = 0; | |
989 | int cover_letter = 0; | |
990 | int boundary_count = 0; | |
991 | int no_binary_diff = 0; | |
992 | struct commit *origin = NULL, *head = NULL; | |
993 | const char *in_reply_to = NULL; | |
994 | struct patch_ids ids; | |
995 | char *add_signoff = NULL; | |
996 | struct strbuf buf = STRBUF_INIT; | |
997 | int use_patch_format = 0; | |
998 | const struct option builtin_format_patch_options[] = { | |
999 | { OPTION_CALLBACK, 'n', "numbered", &numbered, NULL, | |
1000 | "use [PATCH n/m] even with a single patch", | |
1001 | PARSE_OPT_NOARG, numbered_callback }, | |
1002 | { OPTION_CALLBACK, 'N', "no-numbered", &numbered, NULL, | |
1003 | "use [PATCH] even with multiple patches", | |
1004 | PARSE_OPT_NOARG, no_numbered_callback }, | |
1005 | OPT_BOOLEAN('s', "signoff", &do_signoff, "add Signed-off-by:"), | |
1006 | OPT_BOOLEAN(0, "stdout", &use_stdout, | |
1007 | "print patches to standard out"), | |
1008 | OPT_BOOLEAN(0, "cover-letter", &cover_letter, | |
1009 | "generate a cover letter"), | |
1010 | OPT_BOOLEAN(0, "numbered-files", &numbered_files, | |
1011 | "use simple number sequence for output file names"), | |
1012 | OPT_STRING(0, "suffix", &fmt_patch_suffix, "sfx", | |
1013 | "use <sfx> instead of '.patch'"), | |
1014 | OPT_INTEGER(0, "start-number", &start_number, | |
1015 | "start numbering patches at <n> instead of 1"), | |
1016 | { OPTION_CALLBACK, 0, "subject-prefix", &rev, "prefix", | |
1017 | "Use [<prefix>] instead of [PATCH]", | |
1018 | PARSE_OPT_NONEG, subject_prefix_callback }, | |
1019 | { OPTION_CALLBACK, 'o', "output-directory", &output_directory, | |
1020 | "dir", "store resulting files in <dir>", | |
1021 | PARSE_OPT_NONEG, output_directory_callback }, | |
1022 | { OPTION_CALLBACK, 'k', "keep-subject", &rev, NULL, | |
1023 | "don't strip/add [PATCH]", | |
1024 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, keep_callback }, | |
1025 | OPT_BOOLEAN(0, "no-binary", &no_binary_diff, | |
1026 | "don't output binary diffs"), | |
1027 | OPT_BOOLEAN(0, "ignore-if-in-upstream", &ignore_if_in_upstream, | |
1028 | "don't include a patch matching a commit upstream"), | |
1029 | { OPTION_BOOLEAN, 'p', "no-stat", &use_patch_format, NULL, | |
1030 | "show patch format instead of default (patch + stat)", | |
1031 | PARSE_OPT_NONEG | PARSE_OPT_NOARG }, | |
1032 | OPT_GROUP("Messaging"), | |
1033 | { OPTION_CALLBACK, 0, "add-header", NULL, "header", | |
1034 | "add email header", 0, header_callback }, | |
1035 | { OPTION_CALLBACK, 0, "to", NULL, "email", "add To: header", | |
1036 | 0, to_callback }, | |
1037 | { OPTION_CALLBACK, 0, "cc", NULL, "email", "add Cc: header", | |
1038 | 0, cc_callback }, | |
1039 | OPT_STRING(0, "in-reply-to", &in_reply_to, "message-id", | |
1040 | "make first mail a reply to <message-id>"), | |
1041 | { OPTION_CALLBACK, 0, "attach", &rev, "boundary", | |
1042 | "attach the patch", PARSE_OPT_OPTARG, | |
1043 | attach_callback }, | |
1044 | { OPTION_CALLBACK, 0, "inline", &rev, "boundary", | |
1045 | "inline the patch", | |
1046 | PARSE_OPT_OPTARG | PARSE_OPT_NONEG, | |
1047 | inline_callback }, | |
1048 | { OPTION_CALLBACK, 0, "thread", &thread, "style", | |
1049 | "enable message threading, styles: shallow, deep", | |
1050 | PARSE_OPT_OPTARG, thread_callback }, | |
1051 | OPT_STRING(0, "signature", &signature, "signature", | |
1052 | "add a signature"), | |
1053 | OPT_END() | |
1054 | }; | |
1055 | ||
1056 | extra_hdr.strdup_strings = 1; | |
1057 | extra_to.strdup_strings = 1; | |
1058 | extra_cc.strdup_strings = 1; | |
1059 | git_config(git_format_config, NULL); | |
1060 | init_revisions(&rev, prefix); | |
1061 | rev.commit_format = CMIT_FMT_EMAIL; | |
1062 | rev.verbose_header = 1; | |
1063 | rev.diff = 1; | |
1064 | rev.no_merges = 1; | |
1065 | DIFF_OPT_SET(&rev.diffopt, RECURSIVE); | |
1066 | rev.subject_prefix = fmt_patch_subject_prefix; | |
1067 | memset(&s_r_opt, 0, sizeof(s_r_opt)); | |
1068 | s_r_opt.def = "HEAD"; | |
1069 | ||
1070 | if (default_attach) { | |
1071 | rev.mime_boundary = default_attach; | |
1072 | rev.no_inline = 1; | |
1073 | } | |
1074 | ||
1075 | /* | |
1076 | * Parse the arguments before setup_revisions(), or something | |
1077 | * like "git format-patch -o a123 HEAD^.." may fail; a123 is | |
1078 | * possibly a valid SHA1. | |
1079 | */ | |
1080 | argc = parse_options(argc, argv, prefix, builtin_format_patch_options, | |
1081 | builtin_format_patch_usage, | |
1082 | PARSE_OPT_KEEP_ARGV0 | PARSE_OPT_KEEP_UNKNOWN | | |
1083 | PARSE_OPT_KEEP_DASHDASH); | |
1084 | ||
1085 | if (do_signoff) { | |
1086 | const char *committer; | |
1087 | const char *endpos; | |
1088 | committer = git_committer_info(IDENT_ERROR_ON_NO_NAME); | |
1089 | endpos = strchr(committer, '>'); | |
1090 | if (!endpos) | |
1091 | die("bogus committer info %s", committer); | |
1092 | add_signoff = xmemdupz(committer, endpos - committer + 1); | |
1093 | } | |
1094 | ||
1095 | for (i = 0; i < extra_hdr.nr; i++) { | |
1096 | strbuf_addstr(&buf, extra_hdr.items[i].string); | |
1097 | strbuf_addch(&buf, '\n'); | |
1098 | } | |
1099 | ||
1100 | if (extra_to.nr) | |
1101 | strbuf_addstr(&buf, "To: "); | |
1102 | for (i = 0; i < extra_to.nr; i++) { | |
1103 | if (i) | |
1104 | strbuf_addstr(&buf, " "); | |
1105 | strbuf_addstr(&buf, extra_to.items[i].string); | |
1106 | if (i + 1 < extra_to.nr) | |
1107 | strbuf_addch(&buf, ','); | |
1108 | strbuf_addch(&buf, '\n'); | |
1109 | } | |
1110 | ||
1111 | if (extra_cc.nr) | |
1112 | strbuf_addstr(&buf, "Cc: "); | |
1113 | for (i = 0; i < extra_cc.nr; i++) { | |
1114 | if (i) | |
1115 | strbuf_addstr(&buf, " "); | |
1116 | strbuf_addstr(&buf, extra_cc.items[i].string); | |
1117 | if (i + 1 < extra_cc.nr) | |
1118 | strbuf_addch(&buf, ','); | |
1119 | strbuf_addch(&buf, '\n'); | |
1120 | } | |
1121 | ||
1122 | rev.extra_headers = strbuf_detach(&buf, NULL); | |
1123 | ||
1124 | if (start_number < 0) | |
1125 | start_number = 1; | |
1126 | ||
1127 | /* | |
1128 | * If numbered is set solely due to format.numbered in config, | |
1129 | * and it would conflict with --keep-subject (-k) from the | |
1130 | * command line, reset "numbered". | |
1131 | */ | |
1132 | if (numbered && keep_subject && !numbered_cmdline_opt) | |
1133 | numbered = 0; | |
1134 | ||
1135 | if (numbered && keep_subject) | |
1136 | die ("-n and -k are mutually exclusive."); | |
1137 | if (keep_subject && subject_prefix) | |
1138 | die ("--subject-prefix and -k are mutually exclusive."); | |
1139 | ||
1140 | argc = setup_revisions(argc, argv, &rev, &s_r_opt); | |
1141 | if (argc > 1) | |
1142 | die ("unrecognized argument: %s", argv[1]); | |
1143 | ||
1144 | if (rev.diffopt.output_format & DIFF_FORMAT_NAME) | |
1145 | die("--name-only does not make sense"); | |
1146 | if (rev.diffopt.output_format & DIFF_FORMAT_NAME_STATUS) | |
1147 | die("--name-status does not make sense"); | |
1148 | if (rev.diffopt.output_format & DIFF_FORMAT_CHECKDIFF) | |
1149 | die("--check does not make sense"); | |
1150 | ||
1151 | if (!use_patch_format && | |
1152 | (!rev.diffopt.output_format || | |
1153 | rev.diffopt.output_format == DIFF_FORMAT_PATCH)) | |
1154 | rev.diffopt.output_format = DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_SUMMARY; | |
1155 | ||
1156 | /* Always generate a patch */ | |
1157 | rev.diffopt.output_format |= DIFF_FORMAT_PATCH; | |
1158 | ||
1159 | if (!DIFF_OPT_TST(&rev.diffopt, TEXT) && !no_binary_diff) | |
1160 | DIFF_OPT_SET(&rev.diffopt, BINARY); | |
1161 | ||
1162 | if (rev.show_notes) | |
1163 | init_display_notes(&rev.notes_opt); | |
1164 | ||
1165 | if (!use_stdout) | |
1166 | output_directory = set_outdir(prefix, output_directory); | |
1167 | else | |
1168 | setup_pager(); | |
1169 | ||
1170 | if (output_directory) { | |
1171 | if (use_stdout) | |
1172 | die("standard output, or directory, which one?"); | |
1173 | if (mkdir(output_directory, 0777) < 0 && errno != EEXIST) | |
1174 | die_errno("Could not create directory '%s'", | |
1175 | output_directory); | |
1176 | } | |
1177 | ||
1178 | if (rev.pending.nr == 1) { | |
1179 | if (rev.max_count < 0 && !rev.show_root_diff) { | |
1180 | /* | |
1181 | * This is traditional behaviour of "git format-patch | |
1182 | * origin" that prepares what the origin side still | |
1183 | * does not have. | |
1184 | */ | |
1185 | rev.pending.objects[0].item->flags |= UNINTERESTING; | |
1186 | add_head_to_pending(&rev); | |
1187 | } | |
1188 | /* | |
1189 | * Otherwise, it is "format-patch -22 HEAD", and/or | |
1190 | * "format-patch --root HEAD". The user wants | |
1191 | * get_revision() to do the usual traversal. | |
1192 | */ | |
1193 | } | |
1194 | ||
1195 | /* | |
1196 | * We cannot move this anywhere earlier because we do want to | |
1197 | * know if --root was given explicitly from the command line. | |
1198 | */ | |
1199 | rev.show_root_diff = 1; | |
1200 | ||
1201 | if (cover_letter) { | |
1202 | /* remember the range */ | |
1203 | int i; | |
1204 | for (i = 0; i < rev.pending.nr; i++) { | |
1205 | struct object *o = rev.pending.objects[i].item; | |
1206 | if (!(o->flags & UNINTERESTING)) | |
1207 | head = (struct commit *)o; | |
1208 | } | |
1209 | /* We can't generate a cover letter without any patches */ | |
1210 | if (!head) | |
1211 | return 0; | |
1212 | } | |
1213 | ||
1214 | if (ignore_if_in_upstream) { | |
1215 | /* Don't say anything if head and upstream are the same. */ | |
1216 | if (rev.pending.nr == 2) { | |
1217 | struct object_array_entry *o = rev.pending.objects; | |
1218 | if (hashcmp(o[0].item->sha1, o[1].item->sha1) == 0) | |
1219 | return 0; | |
1220 | } | |
1221 | get_patch_ids(&rev, &ids, prefix); | |
1222 | } | |
1223 | ||
1224 | if (!use_stdout) | |
1225 | realstdout = xfdopen(xdup(1), "w"); | |
1226 | ||
1227 | if (prepare_revision_walk(&rev)) | |
1228 | die("revision walk setup failed"); | |
1229 | rev.boundary = 1; | |
1230 | while ((commit = get_revision(&rev)) != NULL) { | |
1231 | if (commit->object.flags & BOUNDARY) { | |
1232 | boundary_count++; | |
1233 | origin = (boundary_count == 1) ? commit : NULL; | |
1234 | continue; | |
1235 | } | |
1236 | ||
1237 | if (ignore_if_in_upstream && | |
1238 | has_commit_patch_id(commit, &ids)) | |
1239 | continue; | |
1240 | ||
1241 | nr++; | |
1242 | list = xrealloc(list, nr * sizeof(list[0])); | |
1243 | list[nr - 1] = commit; | |
1244 | } | |
1245 | total = nr; | |
1246 | if (!keep_subject && auto_number && total > 1) | |
1247 | numbered = 1; | |
1248 | if (numbered) | |
1249 | rev.total = total + start_number - 1; | |
1250 | if (in_reply_to || thread || cover_letter) | |
1251 | rev.ref_message_ids = xcalloc(1, sizeof(struct string_list)); | |
1252 | if (in_reply_to) { | |
1253 | const char *msgid = clean_message_id(in_reply_to); | |
1254 | string_list_append(rev.ref_message_ids, msgid); | |
1255 | } | |
1256 | rev.numbered_files = numbered_files; | |
1257 | rev.patch_suffix = fmt_patch_suffix; | |
1258 | if (cover_letter) { | |
1259 | if (thread) | |
1260 | gen_message_id(&rev, "cover"); | |
1261 | make_cover_letter(&rev, use_stdout, numbered, numbered_files, | |
1262 | origin, nr, list, head); | |
1263 | total++; | |
1264 | start_number--; | |
1265 | } | |
1266 | rev.add_signoff = add_signoff; | |
1267 | while (0 <= --nr) { | |
1268 | int shown; | |
1269 | commit = list[nr]; | |
1270 | rev.nr = total - nr + (start_number - 1); | |
1271 | /* Make the second and subsequent mails replies to the first */ | |
1272 | if (thread) { | |
1273 | /* Have we already had a message ID? */ | |
1274 | if (rev.message_id) { | |
1275 | /* | |
1276 | * For deep threading: make every mail | |
1277 | * a reply to the previous one, no | |
1278 | * matter what other options are set. | |
1279 | * | |
1280 | * For shallow threading: | |
1281 | * | |
1282 | * Without --cover-letter and | |
1283 | * --in-reply-to, make every mail a | |
1284 | * reply to the one before. | |
1285 | * | |
1286 | * With --in-reply-to but no | |
1287 | * --cover-letter, make every mail a | |
1288 | * reply to the <reply-to>. | |
1289 | * | |
1290 | * With --cover-letter, make every | |
1291 | * mail but the cover letter a reply | |
1292 | * to the cover letter. The cover | |
1293 | * letter is a reply to the | |
1294 | * --in-reply-to, if specified. | |
1295 | */ | |
1296 | if (thread == THREAD_SHALLOW | |
1297 | && rev.ref_message_ids->nr > 0 | |
1298 | && (!cover_letter || rev.nr > 1)) | |
1299 | free(rev.message_id); | |
1300 | else | |
1301 | string_list_append(rev.ref_message_ids, | |
1302 | rev.message_id); | |
1303 | } | |
1304 | gen_message_id(&rev, sha1_to_hex(commit->object.sha1)); | |
1305 | } | |
1306 | ||
1307 | if (!use_stdout && reopen_stdout(numbered_files ? NULL : commit, | |
1308 | &rev)) | |
1309 | die("Failed to create output files"); | |
1310 | shown = log_tree_commit(&rev, commit); | |
1311 | free(commit->buffer); | |
1312 | commit->buffer = NULL; | |
1313 | ||
1314 | /* We put one extra blank line between formatted | |
1315 | * patches and this flag is used by log-tree code | |
1316 | * to see if it needs to emit a LF before showing | |
1317 | * the log; when using one file per patch, we do | |
1318 | * not want the extra blank line. | |
1319 | */ | |
1320 | if (!use_stdout) | |
1321 | rev.shown_one = 0; | |
1322 | if (shown) { | |
1323 | if (rev.mime_boundary) | |
1324 | printf("\n--%s%s--\n\n\n", | |
1325 | mime_boundary_leader, | |
1326 | rev.mime_boundary); | |
1327 | else | |
1328 | print_signature(); | |
1329 | } | |
1330 | if (!use_stdout) | |
1331 | fclose(stdout); | |
1332 | } | |
1333 | free(list); | |
1334 | string_list_clear(&extra_to, 0); | |
1335 | string_list_clear(&extra_cc, 0); | |
1336 | string_list_clear(&extra_hdr, 0); | |
1337 | if (ignore_if_in_upstream) | |
1338 | free_patch_ids(&ids); | |
1339 | return 0; | |
1340 | } | |
1341 | ||
1342 | static int add_pending_commit(const char *arg, struct rev_info *revs, int flags) | |
1343 | { | |
1344 | unsigned char sha1[20]; | |
1345 | if (get_sha1(arg, sha1) == 0) { | |
1346 | struct commit *commit = lookup_commit_reference(sha1); | |
1347 | if (commit) { | |
1348 | commit->object.flags |= flags; | |
1349 | add_pending_object(revs, &commit->object, arg); | |
1350 | return 0; | |
1351 | } | |
1352 | } | |
1353 | return -1; | |
1354 | } | |
1355 | ||
1356 | static const char * const cherry_usage[] = { | |
1357 | "git cherry [-v] [<upstream> [<head> [<limit>]]]", | |
1358 | NULL | |
1359 | }; | |
1360 | ||
1361 | int cmd_cherry(int argc, const char **argv, const char *prefix) | |
1362 | { | |
1363 | struct rev_info revs; | |
1364 | struct patch_ids ids; | |
1365 | struct commit *commit; | |
1366 | struct commit_list *list = NULL; | |
1367 | struct branch *current_branch; | |
1368 | const char *upstream; | |
1369 | const char *head = "HEAD"; | |
1370 | const char *limit = NULL; | |
1371 | int verbose = 0, abbrev = 0; | |
1372 | ||
1373 | struct option options[] = { | |
1374 | OPT__ABBREV(&abbrev), | |
1375 | OPT__VERBOSE(&verbose, "be verbose"), | |
1376 | OPT_END() | |
1377 | }; | |
1378 | ||
1379 | argc = parse_options(argc, argv, prefix, options, cherry_usage, 0); | |
1380 | ||
1381 | switch (argc) { | |
1382 | case 3: | |
1383 | limit = argv[2]; | |
1384 | /* FALLTHROUGH */ | |
1385 | case 2: | |
1386 | head = argv[1]; | |
1387 | /* FALLTHROUGH */ | |
1388 | case 1: | |
1389 | upstream = argv[0]; | |
1390 | break; | |
1391 | default: | |
1392 | current_branch = branch_get(NULL); | |
1393 | if (!current_branch || !current_branch->merge | |
1394 | || !current_branch->merge[0] | |
1395 | || !current_branch->merge[0]->dst) { | |
1396 | fprintf(stderr, "Could not find a tracked" | |
1397 | " remote branch, please" | |
1398 | " specify <upstream> manually.\n"); | |
1399 | usage_with_options(cherry_usage, options); | |
1400 | } | |
1401 | ||
1402 | upstream = current_branch->merge[0]->dst; | |
1403 | } | |
1404 | ||
1405 | init_revisions(&revs, prefix); | |
1406 | revs.diff = 1; | |
1407 | revs.combine_merges = 0; | |
1408 | revs.ignore_merges = 1; | |
1409 | DIFF_OPT_SET(&revs.diffopt, RECURSIVE); | |
1410 | ||
1411 | if (add_pending_commit(head, &revs, 0)) | |
1412 | die("Unknown commit %s", head); | |
1413 | if (add_pending_commit(upstream, &revs, UNINTERESTING)) | |
1414 | die("Unknown commit %s", upstream); | |
1415 | ||
1416 | /* Don't say anything if head and upstream are the same. */ | |
1417 | if (revs.pending.nr == 2) { | |
1418 | struct object_array_entry *o = revs.pending.objects; | |
1419 | if (hashcmp(o[0].item->sha1, o[1].item->sha1) == 0) | |
1420 | return 0; | |
1421 | } | |
1422 | ||
1423 | get_patch_ids(&revs, &ids, prefix); | |
1424 | ||
1425 | if (limit && add_pending_commit(limit, &revs, UNINTERESTING)) | |
1426 | die("Unknown commit %s", limit); | |
1427 | ||
1428 | /* reverse the list of commits */ | |
1429 | if (prepare_revision_walk(&revs)) | |
1430 | die("revision walk setup failed"); | |
1431 | while ((commit = get_revision(&revs)) != NULL) { | |
1432 | /* ignore merges */ | |
1433 | if (commit->parents && commit->parents->next) | |
1434 | continue; | |
1435 | ||
1436 | commit_list_insert(commit, &list); | |
1437 | } | |
1438 | ||
1439 | while (list) { | |
1440 | char sign = '+'; | |
1441 | ||
1442 | commit = list->item; | |
1443 | if (has_commit_patch_id(commit, &ids)) | |
1444 | sign = '-'; | |
1445 | ||
1446 | if (verbose) { | |
1447 | struct strbuf buf = STRBUF_INIT; | |
1448 | struct pretty_print_context ctx = {0}; | |
1449 | pretty_print_commit(CMIT_FMT_ONELINE, commit, | |
1450 | &buf, &ctx); | |
1451 | printf("%c %s %s\n", sign, | |
1452 | find_unique_abbrev(commit->object.sha1, abbrev), | |
1453 | buf.buf); | |
1454 | strbuf_release(&buf); | |
1455 | } | |
1456 | else { | |
1457 | printf("%c %s\n", sign, | |
1458 | find_unique_abbrev(commit->object.sha1, abbrev)); | |
1459 | } | |
1460 | ||
1461 | list = list->next; | |
1462 | } | |
1463 | ||
1464 | free_patch_ids(&ids); | |
1465 | return 0; | |
1466 | } |