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1 | #include "builtin.h" | |
2 | #include "cache.h" | |
3 | #include "config.h" | |
4 | #include "refs.h" | |
5 | #include "commit.h" | |
6 | #include "diff.h" | |
7 | #include "revision.h" | |
8 | #include "tag.h" | |
9 | #include "string-list.h" | |
10 | #include "branch.h" | |
11 | #include "fmt-merge-msg.h" | |
12 | #include "gpg-interface.h" | |
13 | ||
14 | static const char * const fmt_merge_msg_usage[] = { | |
15 | N_("git fmt-merge-msg [-m <message>] [--log[=<n>] | --no-log] [--file <file>]"), | |
16 | NULL | |
17 | }; | |
18 | ||
19 | static int use_branch_desc; | |
20 | ||
21 | int fmt_merge_msg_config(const char *key, const char *value, void *cb) | |
22 | { | |
23 | if (!strcmp(key, "merge.log") || !strcmp(key, "merge.summary")) { | |
24 | int is_bool; | |
25 | merge_log_config = git_config_bool_or_int(key, value, &is_bool); | |
26 | if (!is_bool && merge_log_config < 0) | |
27 | return error("%s: negative length %s", key, value); | |
28 | if (is_bool && merge_log_config) | |
29 | merge_log_config = DEFAULT_MERGE_LOG_LEN; | |
30 | } else if (!strcmp(key, "merge.branchdesc")) { | |
31 | use_branch_desc = git_config_bool(key, value); | |
32 | } else { | |
33 | return git_default_config(key, value, cb); | |
34 | } | |
35 | return 0; | |
36 | } | |
37 | ||
38 | /* merge data per repository where the merged tips came from */ | |
39 | struct src_data { | |
40 | struct string_list branch, tag, r_branch, generic; | |
41 | int head_status; | |
42 | }; | |
43 | ||
44 | struct origin_data { | |
45 | struct object_id oid; | |
46 | unsigned is_local_branch:1; | |
47 | }; | |
48 | ||
49 | static void init_src_data(struct src_data *data) | |
50 | { | |
51 | data->branch.strdup_strings = 1; | |
52 | data->tag.strdup_strings = 1; | |
53 | data->r_branch.strdup_strings = 1; | |
54 | data->generic.strdup_strings = 1; | |
55 | } | |
56 | ||
57 | static struct string_list srcs = STRING_LIST_INIT_DUP; | |
58 | static struct string_list origins = STRING_LIST_INIT_DUP; | |
59 | ||
60 | struct merge_parents { | |
61 | int alloc, nr; | |
62 | struct merge_parent { | |
63 | struct object_id given; | |
64 | struct object_id commit; | |
65 | unsigned char used; | |
66 | } *item; | |
67 | }; | |
68 | ||
69 | /* | |
70 | * I know, I know, this is inefficient, but you won't be pulling and merging | |
71 | * hundreds of heads at a time anyway. | |
72 | */ | |
73 | static struct merge_parent *find_merge_parent(struct merge_parents *table, | |
74 | struct object_id *given, | |
75 | struct object_id *commit) | |
76 | { | |
77 | int i; | |
78 | for (i = 0; i < table->nr; i++) { | |
79 | if (given && oidcmp(&table->item[i].given, given)) | |
80 | continue; | |
81 | if (commit && oidcmp(&table->item[i].commit, commit)) | |
82 | continue; | |
83 | return &table->item[i]; | |
84 | } | |
85 | return NULL; | |
86 | } | |
87 | ||
88 | static void add_merge_parent(struct merge_parents *table, | |
89 | struct object_id *given, | |
90 | struct object_id *commit) | |
91 | { | |
92 | if (table->nr && find_merge_parent(table, given, commit)) | |
93 | return; | |
94 | ALLOC_GROW(table->item, table->nr + 1, table->alloc); | |
95 | oidcpy(&table->item[table->nr].given, given); | |
96 | oidcpy(&table->item[table->nr].commit, commit); | |
97 | table->item[table->nr].used = 0; | |
98 | table->nr++; | |
99 | } | |
100 | ||
101 | static int handle_line(char *line, struct merge_parents *merge_parents) | |
102 | { | |
103 | int i, len = strlen(line); | |
104 | struct origin_data *origin_data; | |
105 | char *src; | |
106 | const char *origin; | |
107 | struct src_data *src_data; | |
108 | struct string_list_item *item; | |
109 | int pulling_head = 0; | |
110 | struct object_id oid; | |
111 | ||
112 | if (len < GIT_SHA1_HEXSZ + 3 || line[GIT_SHA1_HEXSZ] != '\t') | |
113 | return 1; | |
114 | ||
115 | if (starts_with(line + GIT_SHA1_HEXSZ + 1, "not-for-merge")) | |
116 | return 0; | |
117 | ||
118 | if (line[GIT_SHA1_HEXSZ + 1] != '\t') | |
119 | return 2; | |
120 | ||
121 | i = get_oid_hex(line, &oid); | |
122 | if (i) | |
123 | return 3; | |
124 | ||
125 | if (!find_merge_parent(merge_parents, &oid, NULL)) | |
126 | return 0; /* subsumed by other parents */ | |
127 | ||
128 | origin_data = xcalloc(1, sizeof(struct origin_data)); | |
129 | oidcpy(&origin_data->oid, &oid); | |
130 | ||
131 | if (line[len - 1] == '\n') | |
132 | line[len - 1] = 0; | |
133 | line += GIT_SHA1_HEXSZ + 2; | |
134 | ||
135 | /* | |
136 | * At this point, line points at the beginning of comment e.g. | |
137 | * "branch 'frotz' of git://that/repository.git". | |
138 | * Find the repository name and point it with src. | |
139 | */ | |
140 | src = strstr(line, " of "); | |
141 | if (src) { | |
142 | *src = 0; | |
143 | src += 4; | |
144 | pulling_head = 0; | |
145 | } else { | |
146 | src = line; | |
147 | pulling_head = 1; | |
148 | } | |
149 | ||
150 | item = unsorted_string_list_lookup(&srcs, src); | |
151 | if (!item) { | |
152 | item = string_list_append(&srcs, src); | |
153 | item->util = xcalloc(1, sizeof(struct src_data)); | |
154 | init_src_data(item->util); | |
155 | } | |
156 | src_data = item->util; | |
157 | ||
158 | if (pulling_head) { | |
159 | origin = src; | |
160 | src_data->head_status |= 1; | |
161 | } else if (starts_with(line, "branch ")) { | |
162 | origin_data->is_local_branch = 1; | |
163 | origin = line + 7; | |
164 | string_list_append(&src_data->branch, origin); | |
165 | src_data->head_status |= 2; | |
166 | } else if (starts_with(line, "tag ")) { | |
167 | origin = line; | |
168 | string_list_append(&src_data->tag, origin + 4); | |
169 | src_data->head_status |= 2; | |
170 | } else if (skip_prefix(line, "remote-tracking branch ", &origin)) { | |
171 | string_list_append(&src_data->r_branch, origin); | |
172 | src_data->head_status |= 2; | |
173 | } else { | |
174 | origin = src; | |
175 | string_list_append(&src_data->generic, line); | |
176 | src_data->head_status |= 2; | |
177 | } | |
178 | ||
179 | if (!strcmp(".", src) || !strcmp(src, origin)) { | |
180 | int len = strlen(origin); | |
181 | if (origin[0] == '\'' && origin[len - 1] == '\'') | |
182 | origin = xmemdupz(origin + 1, len - 2); | |
183 | } else | |
184 | origin = xstrfmt("%s of %s", origin, src); | |
185 | if (strcmp(".", src)) | |
186 | origin_data->is_local_branch = 0; | |
187 | string_list_append(&origins, origin)->util = origin_data; | |
188 | return 0; | |
189 | } | |
190 | ||
191 | static void print_joined(const char *singular, const char *plural, | |
192 | struct string_list *list, struct strbuf *out) | |
193 | { | |
194 | if (list->nr == 0) | |
195 | return; | |
196 | if (list->nr == 1) { | |
197 | strbuf_addf(out, "%s%s", singular, list->items[0].string); | |
198 | } else { | |
199 | int i; | |
200 | strbuf_addstr(out, plural); | |
201 | for (i = 0; i < list->nr - 1; i++) | |
202 | strbuf_addf(out, "%s%s", i > 0 ? ", " : "", | |
203 | list->items[i].string); | |
204 | strbuf_addf(out, " and %s", list->items[list->nr - 1].string); | |
205 | } | |
206 | } | |
207 | ||
208 | static void add_branch_desc(struct strbuf *out, const char *name) | |
209 | { | |
210 | struct strbuf desc = STRBUF_INIT; | |
211 | ||
212 | if (!read_branch_desc(&desc, name)) { | |
213 | const char *bp = desc.buf; | |
214 | while (*bp) { | |
215 | const char *ep = strchrnul(bp, '\n'); | |
216 | if (*ep) | |
217 | ep++; | |
218 | strbuf_addf(out, " : %.*s", (int)(ep - bp), bp); | |
219 | bp = ep; | |
220 | } | |
221 | strbuf_complete_line(out); | |
222 | } | |
223 | strbuf_release(&desc); | |
224 | } | |
225 | ||
226 | #define util_as_integral(elem) ((intptr_t)((elem)->util)) | |
227 | ||
228 | static void record_person_from_buf(int which, struct string_list *people, | |
229 | const char *buffer) | |
230 | { | |
231 | char *name_buf, *name, *name_end; | |
232 | struct string_list_item *elem; | |
233 | const char *field; | |
234 | ||
235 | field = (which == 'a') ? "\nauthor " : "\ncommitter "; | |
236 | name = strstr(buffer, field); | |
237 | if (!name) | |
238 | return; | |
239 | name += strlen(field); | |
240 | name_end = strchrnul(name, '<'); | |
241 | if (*name_end) | |
242 | name_end--; | |
243 | while (isspace(*name_end) && name <= name_end) | |
244 | name_end--; | |
245 | if (name_end < name) | |
246 | return; | |
247 | name_buf = xmemdupz(name, name_end - name + 1); | |
248 | ||
249 | elem = string_list_lookup(people, name_buf); | |
250 | if (!elem) { | |
251 | elem = string_list_insert(people, name_buf); | |
252 | elem->util = (void *)0; | |
253 | } | |
254 | elem->util = (void*)(util_as_integral(elem) + 1); | |
255 | free(name_buf); | |
256 | } | |
257 | ||
258 | ||
259 | static void record_person(int which, struct string_list *people, | |
260 | struct commit *commit) | |
261 | { | |
262 | const char *buffer = get_commit_buffer(commit, NULL); | |
263 | record_person_from_buf(which, people, buffer); | |
264 | unuse_commit_buffer(commit, buffer); | |
265 | } | |
266 | ||
267 | static int cmp_string_list_util_as_integral(const void *a_, const void *b_) | |
268 | { | |
269 | const struct string_list_item *a = a_, *b = b_; | |
270 | return util_as_integral(b) - util_as_integral(a); | |
271 | } | |
272 | ||
273 | static void add_people_count(struct strbuf *out, struct string_list *people) | |
274 | { | |
275 | if (people->nr == 1) | |
276 | strbuf_addstr(out, people->items[0].string); | |
277 | else if (people->nr == 2) | |
278 | strbuf_addf(out, "%s (%d) and %s (%d)", | |
279 | people->items[0].string, | |
280 | (int)util_as_integral(&people->items[0]), | |
281 | people->items[1].string, | |
282 | (int)util_as_integral(&people->items[1])); | |
283 | else if (people->nr) | |
284 | strbuf_addf(out, "%s (%d) and others", | |
285 | people->items[0].string, | |
286 | (int)util_as_integral(&people->items[0])); | |
287 | } | |
288 | ||
289 | static void credit_people(struct strbuf *out, | |
290 | struct string_list *them, | |
291 | int kind) | |
292 | { | |
293 | const char *label; | |
294 | const char *me; | |
295 | ||
296 | if (kind == 'a') { | |
297 | label = "By"; | |
298 | me = git_author_info(IDENT_NO_DATE); | |
299 | } else { | |
300 | label = "Via"; | |
301 | me = git_committer_info(IDENT_NO_DATE); | |
302 | } | |
303 | ||
304 | if (!them->nr || | |
305 | (them->nr == 1 && | |
306 | me && | |
307 | skip_prefix(me, them->items->string, &me) && | |
308 | starts_with(me, " <"))) | |
309 | return; | |
310 | strbuf_addf(out, "\n%c %s ", comment_line_char, label); | |
311 | add_people_count(out, them); | |
312 | } | |
313 | ||
314 | static void add_people_info(struct strbuf *out, | |
315 | struct string_list *authors, | |
316 | struct string_list *committers) | |
317 | { | |
318 | QSORT(authors->items, authors->nr, | |
319 | cmp_string_list_util_as_integral); | |
320 | QSORT(committers->items, committers->nr, | |
321 | cmp_string_list_util_as_integral); | |
322 | ||
323 | credit_people(out, authors, 'a'); | |
324 | credit_people(out, committers, 'c'); | |
325 | } | |
326 | ||
327 | static void shortlog(const char *name, | |
328 | struct origin_data *origin_data, | |
329 | struct commit *head, | |
330 | struct rev_info *rev, | |
331 | struct fmt_merge_msg_opts *opts, | |
332 | struct strbuf *out) | |
333 | { | |
334 | int i, count = 0; | |
335 | struct commit *commit; | |
336 | struct object *branch; | |
337 | struct string_list subjects = STRING_LIST_INIT_DUP; | |
338 | struct string_list authors = STRING_LIST_INIT_DUP; | |
339 | struct string_list committers = STRING_LIST_INIT_DUP; | |
340 | int flags = UNINTERESTING | TREESAME | SEEN | SHOWN | ADDED; | |
341 | struct strbuf sb = STRBUF_INIT; | |
342 | const struct object_id *oid = &origin_data->oid; | |
343 | int limit = opts->shortlog_len; | |
344 | ||
345 | branch = deref_tag(parse_object(oid->hash), oid_to_hex(oid), GIT_SHA1_HEXSZ); | |
346 | if (!branch || branch->type != OBJ_COMMIT) | |
347 | return; | |
348 | ||
349 | setup_revisions(0, NULL, rev, NULL); | |
350 | add_pending_object(rev, branch, name); | |
351 | add_pending_object(rev, &head->object, "^HEAD"); | |
352 | head->object.flags |= UNINTERESTING; | |
353 | if (prepare_revision_walk(rev)) | |
354 | die("revision walk setup failed"); | |
355 | while ((commit = get_revision(rev)) != NULL) { | |
356 | struct pretty_print_context ctx = {0}; | |
357 | ||
358 | if (commit->parents && commit->parents->next) { | |
359 | /* do not list a merge but count committer */ | |
360 | if (opts->credit_people) | |
361 | record_person('c', &committers, commit); | |
362 | continue; | |
363 | } | |
364 | if (!count && opts->credit_people) | |
365 | /* the 'tip' committer */ | |
366 | record_person('c', &committers, commit); | |
367 | if (opts->credit_people) | |
368 | record_person('a', &authors, commit); | |
369 | count++; | |
370 | if (subjects.nr > limit) | |
371 | continue; | |
372 | ||
373 | format_commit_message(commit, "%s", &sb, &ctx); | |
374 | strbuf_ltrim(&sb); | |
375 | ||
376 | if (!sb.len) | |
377 | string_list_append(&subjects, | |
378 | oid_to_hex(&commit->object.oid)); | |
379 | else | |
380 | string_list_append(&subjects, strbuf_detach(&sb, NULL)); | |
381 | } | |
382 | ||
383 | if (opts->credit_people) | |
384 | add_people_info(out, &authors, &committers); | |
385 | if (count > limit) | |
386 | strbuf_addf(out, "\n* %s: (%d commits)\n", name, count); | |
387 | else | |
388 | strbuf_addf(out, "\n* %s:\n", name); | |
389 | ||
390 | if (origin_data->is_local_branch && use_branch_desc) | |
391 | add_branch_desc(out, name); | |
392 | ||
393 | for (i = 0; i < subjects.nr; i++) | |
394 | if (i >= limit) | |
395 | strbuf_addstr(out, " ...\n"); | |
396 | else | |
397 | strbuf_addf(out, " %s\n", subjects.items[i].string); | |
398 | ||
399 | clear_commit_marks((struct commit *)branch, flags); | |
400 | clear_commit_marks(head, flags); | |
401 | free_commit_list(rev->commits); | |
402 | rev->commits = NULL; | |
403 | rev->pending.nr = 0; | |
404 | ||
405 | string_list_clear(&authors, 0); | |
406 | string_list_clear(&committers, 0); | |
407 | string_list_clear(&subjects, 0); | |
408 | } | |
409 | ||
410 | static void fmt_merge_msg_title(struct strbuf *out, | |
411 | const char *current_branch) { | |
412 | int i = 0; | |
413 | char *sep = ""; | |
414 | ||
415 | strbuf_addstr(out, "Merge "); | |
416 | for (i = 0; i < srcs.nr; i++) { | |
417 | struct src_data *src_data = srcs.items[i].util; | |
418 | const char *subsep = ""; | |
419 | ||
420 | strbuf_addstr(out, sep); | |
421 | sep = "; "; | |
422 | ||
423 | if (src_data->head_status == 1) { | |
424 | strbuf_addstr(out, srcs.items[i].string); | |
425 | continue; | |
426 | } | |
427 | if (src_data->head_status == 3) { | |
428 | subsep = ", "; | |
429 | strbuf_addstr(out, "HEAD"); | |
430 | } | |
431 | if (src_data->branch.nr) { | |
432 | strbuf_addstr(out, subsep); | |
433 | subsep = ", "; | |
434 | print_joined("branch ", "branches ", &src_data->branch, | |
435 | out); | |
436 | } | |
437 | if (src_data->r_branch.nr) { | |
438 | strbuf_addstr(out, subsep); | |
439 | subsep = ", "; | |
440 | print_joined("remote-tracking branch ", "remote-tracking branches ", | |
441 | &src_data->r_branch, out); | |
442 | } | |
443 | if (src_data->tag.nr) { | |
444 | strbuf_addstr(out, subsep); | |
445 | subsep = ", "; | |
446 | print_joined("tag ", "tags ", &src_data->tag, out); | |
447 | } | |
448 | if (src_data->generic.nr) { | |
449 | strbuf_addstr(out, subsep); | |
450 | print_joined("commit ", "commits ", &src_data->generic, | |
451 | out); | |
452 | } | |
453 | if (strcmp(".", srcs.items[i].string)) | |
454 | strbuf_addf(out, " of %s", srcs.items[i].string); | |
455 | } | |
456 | ||
457 | if (!strcmp("master", current_branch)) | |
458 | strbuf_addch(out, '\n'); | |
459 | else | |
460 | strbuf_addf(out, " into %s\n", current_branch); | |
461 | } | |
462 | ||
463 | static void fmt_tag_signature(struct strbuf *tagbuf, | |
464 | struct strbuf *sig, | |
465 | const char *buf, | |
466 | unsigned long len) | |
467 | { | |
468 | const char *tag_body = strstr(buf, "\n\n"); | |
469 | if (tag_body) { | |
470 | tag_body += 2; | |
471 | strbuf_add(tagbuf, tag_body, buf + len - tag_body); | |
472 | } | |
473 | strbuf_complete_line(tagbuf); | |
474 | if (sig->len) { | |
475 | strbuf_addch(tagbuf, '\n'); | |
476 | strbuf_add_commented_lines(tagbuf, sig->buf, sig->len); | |
477 | } | |
478 | } | |
479 | ||
480 | static void fmt_merge_msg_sigs(struct strbuf *out) | |
481 | { | |
482 | int i, tag_number = 0, first_tag = 0; | |
483 | struct strbuf tagbuf = STRBUF_INIT; | |
484 | ||
485 | for (i = 0; i < origins.nr; i++) { | |
486 | unsigned char *sha1 = origins.items[i].util; | |
487 | enum object_type type; | |
488 | unsigned long size, len; | |
489 | char *buf = read_sha1_file(sha1, &type, &size); | |
490 | struct strbuf sig = STRBUF_INIT; | |
491 | ||
492 | if (!buf || type != OBJ_TAG) | |
493 | goto next; | |
494 | len = parse_signature(buf, size); | |
495 | ||
496 | if (size == len) | |
497 | ; /* merely annotated */ | |
498 | else if (verify_signed_buffer(buf, len, buf + len, size - len, &sig, NULL)) { | |
499 | if (!sig.len) | |
500 | strbuf_addstr(&sig, "gpg verification failed.\n"); | |
501 | } | |
502 | ||
503 | if (!tag_number++) { | |
504 | fmt_tag_signature(&tagbuf, &sig, buf, len); | |
505 | first_tag = i; | |
506 | } else { | |
507 | if (tag_number == 2) { | |
508 | struct strbuf tagline = STRBUF_INIT; | |
509 | strbuf_addch(&tagline, '\n'); | |
510 | strbuf_add_commented_lines(&tagline, | |
511 | origins.items[first_tag].string, | |
512 | strlen(origins.items[first_tag].string)); | |
513 | strbuf_insert(&tagbuf, 0, tagline.buf, | |
514 | tagline.len); | |
515 | strbuf_release(&tagline); | |
516 | } | |
517 | strbuf_addch(&tagbuf, '\n'); | |
518 | strbuf_add_commented_lines(&tagbuf, | |
519 | origins.items[i].string, | |
520 | strlen(origins.items[i].string)); | |
521 | fmt_tag_signature(&tagbuf, &sig, buf, len); | |
522 | } | |
523 | strbuf_release(&sig); | |
524 | next: | |
525 | free(buf); | |
526 | } | |
527 | if (tagbuf.len) { | |
528 | strbuf_addch(out, '\n'); | |
529 | strbuf_addbuf(out, &tagbuf); | |
530 | } | |
531 | strbuf_release(&tagbuf); | |
532 | } | |
533 | ||
534 | static void find_merge_parents(struct merge_parents *result, | |
535 | struct strbuf *in, struct object_id *head) | |
536 | { | |
537 | struct commit_list *parents; | |
538 | struct commit *head_commit; | |
539 | int pos = 0, i, j; | |
540 | ||
541 | parents = NULL; | |
542 | while (pos < in->len) { | |
543 | int len; | |
544 | char *p = in->buf + pos; | |
545 | char *newline = strchr(p, '\n'); | |
546 | struct object_id oid; | |
547 | struct commit *parent; | |
548 | struct object *obj; | |
549 | ||
550 | len = newline ? newline - p : strlen(p); | |
551 | pos += len + !!newline; | |
552 | ||
553 | if (len < GIT_SHA1_HEXSZ + 3 || | |
554 | get_oid_hex(p, &oid) || | |
555 | p[GIT_SHA1_HEXSZ] != '\t' || | |
556 | p[GIT_SHA1_HEXSZ + 1] != '\t') | |
557 | continue; /* skip not-for-merge */ | |
558 | /* | |
559 | * Do not use get_merge_parent() here; we do not have | |
560 | * "name" here and we do not want to contaminate its | |
561 | * util field yet. | |
562 | */ | |
563 | obj = parse_object(oid.hash); | |
564 | parent = (struct commit *)peel_to_type(NULL, 0, obj, OBJ_COMMIT); | |
565 | if (!parent) | |
566 | continue; | |
567 | commit_list_insert(parent, &parents); | |
568 | add_merge_parent(result, &obj->oid, &parent->object.oid); | |
569 | } | |
570 | head_commit = lookup_commit(head->hash); | |
571 | if (head_commit) | |
572 | commit_list_insert(head_commit, &parents); | |
573 | parents = reduce_heads(parents); | |
574 | ||
575 | while (parents) { | |
576 | struct commit *cmit = pop_commit(&parents); | |
577 | for (i = 0; i < result->nr; i++) | |
578 | if (!oidcmp(&result->item[i].commit, &cmit->object.oid)) | |
579 | result->item[i].used = 1; | |
580 | } | |
581 | ||
582 | for (i = j = 0; i < result->nr; i++) { | |
583 | if (result->item[i].used) { | |
584 | if (i != j) | |
585 | result->item[j] = result->item[i]; | |
586 | j++; | |
587 | } | |
588 | } | |
589 | result->nr = j; | |
590 | } | |
591 | ||
592 | int fmt_merge_msg(struct strbuf *in, struct strbuf *out, | |
593 | struct fmt_merge_msg_opts *opts) | |
594 | { | |
595 | int i = 0, pos = 0; | |
596 | struct object_id head_oid; | |
597 | const char *current_branch; | |
598 | void *current_branch_to_free; | |
599 | struct merge_parents merge_parents; | |
600 | ||
601 | memset(&merge_parents, 0, sizeof(merge_parents)); | |
602 | ||
603 | /* get current branch */ | |
604 | current_branch = current_branch_to_free = | |
605 | resolve_refdup("HEAD", RESOLVE_REF_READING, head_oid.hash, NULL); | |
606 | if (!current_branch) | |
607 | die("No current branch"); | |
608 | if (starts_with(current_branch, "refs/heads/")) | |
609 | current_branch += 11; | |
610 | ||
611 | find_merge_parents(&merge_parents, in, &head_oid); | |
612 | ||
613 | /* get a line */ | |
614 | while (pos < in->len) { | |
615 | int len; | |
616 | char *newline, *p = in->buf + pos; | |
617 | ||
618 | newline = strchr(p, '\n'); | |
619 | len = newline ? newline - p : strlen(p); | |
620 | pos += len + !!newline; | |
621 | i++; | |
622 | p[len] = 0; | |
623 | if (handle_line(p, &merge_parents)) | |
624 | die ("Error in line %d: %.*s", i, len, p); | |
625 | } | |
626 | ||
627 | if (opts->add_title && srcs.nr) | |
628 | fmt_merge_msg_title(out, current_branch); | |
629 | ||
630 | if (origins.nr) | |
631 | fmt_merge_msg_sigs(out); | |
632 | ||
633 | if (opts->shortlog_len) { | |
634 | struct commit *head; | |
635 | struct rev_info rev; | |
636 | ||
637 | head = lookup_commit_or_die(head_oid.hash, "HEAD"); | |
638 | init_revisions(&rev, NULL); | |
639 | rev.commit_format = CMIT_FMT_ONELINE; | |
640 | rev.ignore_merges = 1; | |
641 | rev.limited = 1; | |
642 | ||
643 | strbuf_complete_line(out); | |
644 | ||
645 | for (i = 0; i < origins.nr; i++) | |
646 | shortlog(origins.items[i].string, | |
647 | origins.items[i].util, | |
648 | head, &rev, opts, out); | |
649 | } | |
650 | ||
651 | strbuf_complete_line(out); | |
652 | free(current_branch_to_free); | |
653 | free(merge_parents.item); | |
654 | return 0; | |
655 | } | |
656 | ||
657 | int cmd_fmt_merge_msg(int argc, const char **argv, const char *prefix) | |
658 | { | |
659 | const char *inpath = NULL; | |
660 | const char *message = NULL; | |
661 | int shortlog_len = -1; | |
662 | struct option options[] = { | |
663 | { OPTION_INTEGER, 0, "log", &shortlog_len, N_("n"), | |
664 | N_("populate log with at most <n> entries from shortlog"), | |
665 | PARSE_OPT_OPTARG, NULL, DEFAULT_MERGE_LOG_LEN }, | |
666 | { OPTION_INTEGER, 0, "summary", &shortlog_len, N_("n"), | |
667 | N_("alias for --log (deprecated)"), | |
668 | PARSE_OPT_OPTARG | PARSE_OPT_HIDDEN, NULL, | |
669 | DEFAULT_MERGE_LOG_LEN }, | |
670 | OPT_STRING('m', "message", &message, N_("text"), | |
671 | N_("use <text> as start of message")), | |
672 | OPT_FILENAME('F', "file", &inpath, N_("file to read from")), | |
673 | OPT_END() | |
674 | }; | |
675 | ||
676 | FILE *in = stdin; | |
677 | struct strbuf input = STRBUF_INIT, output = STRBUF_INIT; | |
678 | int ret; | |
679 | struct fmt_merge_msg_opts opts; | |
680 | ||
681 | git_config(fmt_merge_msg_config, NULL); | |
682 | argc = parse_options(argc, argv, prefix, options, fmt_merge_msg_usage, | |
683 | 0); | |
684 | if (argc > 0) | |
685 | usage_with_options(fmt_merge_msg_usage, options); | |
686 | if (shortlog_len < 0) | |
687 | shortlog_len = (merge_log_config > 0) ? merge_log_config : 0; | |
688 | ||
689 | if (inpath && strcmp(inpath, "-")) { | |
690 | in = fopen(inpath, "r"); | |
691 | if (!in) | |
692 | die_errno("cannot open '%s'", inpath); | |
693 | } | |
694 | ||
695 | if (strbuf_read(&input, fileno(in), 0) < 0) | |
696 | die_errno("could not read input file"); | |
697 | ||
698 | if (message) | |
699 | strbuf_addstr(&output, message); | |
700 | ||
701 | memset(&opts, 0, sizeof(opts)); | |
702 | opts.add_title = !message; | |
703 | opts.credit_people = 1; | |
704 | opts.shortlog_len = shortlog_len; | |
705 | ||
706 | ret = fmt_merge_msg(&input, &output, &opts); | |
707 | if (ret) | |
708 | return ret; | |
709 | write_in_full(STDOUT_FILENO, output.buf, output.len); | |
710 | return 0; | |
711 | } |