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Commit | Line | Data |
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f76412ed | 1 | #include <stdlib.h> |
287f8600 | 2 | #include <fnmatch.h> |
f76412ed JH |
3 | #include "cache.h" |
4 | #include "commit.h" | |
5 | #include "refs.h" | |
6 | ||
7 | static const char show_branch_usage[] = | |
d4ce5f7e | 8 | "git-show-branch [--all] [--heads] [--tags] [--topo-order] [--more=count | --list | --independent | --merge-base ] [<refs>...]"; |
f76412ed JH |
9 | |
10 | #define UNINTERESTING 01 | |
11 | ||
12 | #define REV_SHIFT 2 | |
13 | #define MAX_REVS 29 /* should not exceed bits_per_int - REV_SHIFT */ | |
14 | ||
15 | static struct commit *interesting(struct commit_list *list) | |
16 | { | |
17 | while (list) { | |
18 | struct commit *commit = list->item; | |
19 | list = list->next; | |
20 | if (commit->object.flags & UNINTERESTING) | |
21 | continue; | |
22 | return commit; | |
23 | } | |
24 | return NULL; | |
25 | } | |
26 | ||
27 | static struct commit *pop_one_commit(struct commit_list **list_p) | |
28 | { | |
29 | struct commit *commit; | |
30 | struct commit_list *list; | |
31 | list = *list_p; | |
32 | commit = list->item; | |
33 | *list_p = list->next; | |
34 | free(list); | |
35 | return commit; | |
36 | } | |
37 | ||
38 | struct commit_name { | |
8e5dd22b JH |
39 | const char *head_name; /* which head's ancestor? */ |
40 | int generation; /* how many parents away from head_name */ | |
f76412ed JH |
41 | }; |
42 | ||
8e5dd22b | 43 | /* Name the commit as nth generation ancestor of head_name; |
f76412ed JH |
44 | * we count only the first-parent relationship for naming purposes. |
45 | */ | |
8e5dd22b | 46 | static void name_commit(struct commit *commit, const char *head_name, int nth) |
f76412ed JH |
47 | { |
48 | struct commit_name *name; | |
49 | if (!commit->object.util) | |
50 | commit->object.util = xmalloc(sizeof(struct commit_name)); | |
51 | name = commit->object.util; | |
8e5dd22b | 52 | name->head_name = head_name; |
f76412ed JH |
53 | name->generation = nth; |
54 | } | |
55 | ||
56 | /* Parent is the first parent of the commit. We may name it | |
8e5dd22b | 57 | * as (n+1)th generation ancestor of the same head_name as |
bcaf60b2 | 58 | * commit is nth generation ancestor of, if that generation |
f76412ed JH |
59 | * number is better than the name it already has. |
60 | */ | |
61 | static void name_parent(struct commit *commit, struct commit *parent) | |
62 | { | |
63 | struct commit_name *commit_name = commit->object.util; | |
64 | struct commit_name *parent_name = parent->object.util; | |
65 | if (!commit_name) | |
66 | return; | |
67 | if (!parent_name || | |
68 | commit_name->generation + 1 < parent_name->generation) | |
8e5dd22b | 69 | name_commit(parent, commit_name->head_name, |
f76412ed JH |
70 | commit_name->generation + 1); |
71 | } | |
72 | ||
8e5dd22b JH |
73 | static int name_first_parent_chain(struct commit *c) |
74 | { | |
75 | int i = 0; | |
76 | while (c) { | |
77 | struct commit *p; | |
78 | if (!c->object.util) | |
79 | break; | |
80 | if (!c->parents) | |
81 | break; | |
82 | p = c->parents->item; | |
83 | if (!p->object.util) { | |
84 | name_parent(c, p); | |
85 | i++; | |
86 | } | |
87 | c = p; | |
88 | } | |
89 | return i; | |
90 | } | |
91 | ||
92 | static void name_commits(struct commit_list *list, | |
93 | struct commit **rev, | |
94 | char **ref_name, | |
95 | int num_rev) | |
96 | { | |
97 | struct commit_list *cl; | |
98 | struct commit *c; | |
99 | int i; | |
100 | ||
101 | /* First give names to the given heads */ | |
102 | for (cl = list; cl; cl = cl->next) { | |
103 | c = cl->item; | |
104 | if (c->object.util) | |
105 | continue; | |
106 | for (i = 0; i < num_rev; i++) { | |
107 | if (rev[i] == c) { | |
108 | name_commit(c, ref_name[i], 0); | |
109 | break; | |
110 | } | |
111 | } | |
112 | } | |
113 | ||
114 | /* Then commits on the first parent ancestry chain */ | |
115 | do { | |
116 | i = 0; | |
117 | for (cl = list; cl; cl = cl->next) { | |
118 | i += name_first_parent_chain(cl->item); | |
119 | } | |
120 | } while (i); | |
121 | ||
122 | /* Finally, any unnamed commits */ | |
123 | do { | |
124 | i = 0; | |
125 | for (cl = list; cl; cl = cl->next) { | |
126 | struct commit_list *parents; | |
127 | struct commit_name *n; | |
128 | int nth; | |
129 | c = cl->item; | |
130 | if (!c->object.util) | |
131 | continue; | |
132 | n = c->object.util; | |
133 | parents = c->parents; | |
134 | nth = 0; | |
135 | while (parents) { | |
136 | struct commit *p = parents->item; | |
013f276e | 137 | char newname[1000], *en; |
8e5dd22b JH |
138 | parents = parents->next; |
139 | nth++; | |
140 | if (p->object.util) | |
141 | continue; | |
013f276e | 142 | en = newname; |
fbaf834d JH |
143 | switch (n->generation) { |
144 | case 0: | |
013f276e | 145 | en += sprintf(en, "%s", n->head_name); |
fbaf834d JH |
146 | break; |
147 | case 1: | |
013f276e | 148 | en += sprintf(en, "%s^", n->head_name); |
fbaf834d JH |
149 | break; |
150 | default: | |
013f276e JH |
151 | en += sprintf(en, "%s~%d", |
152 | n->head_name, n->generation); | |
153 | break; | |
fbaf834d | 154 | } |
013f276e JH |
155 | if (nth == 1) |
156 | en += sprintf(en, "^"); | |
157 | else | |
158 | en += sprintf(en, "^%d", nth); | |
8e5dd22b JH |
159 | name_commit(p, strdup(newname), 0); |
160 | i++; | |
161 | name_first_parent_chain(p); | |
162 | } | |
163 | } | |
164 | } while (i); | |
165 | } | |
166 | ||
f76412ed JH |
167 | static int mark_seen(struct commit *commit, struct commit_list **seen_p) |
168 | { | |
169 | if (!commit->object.flags) { | |
170 | insert_by_date(commit, seen_p); | |
171 | return 1; | |
172 | } | |
173 | return 0; | |
174 | } | |
175 | ||
176 | static void join_revs(struct commit_list **list_p, | |
177 | struct commit_list **seen_p, | |
178 | int num_rev, int extra) | |
179 | { | |
180 | int all_mask = ((1u << (REV_SHIFT + num_rev)) - 1); | |
181 | int all_revs = all_mask & ~((1u << REV_SHIFT) - 1); | |
182 | ||
183 | while (*list_p) { | |
184 | struct commit_list *parents; | |
9ce70285 | 185 | int still_interesting = !!interesting(*list_p); |
f76412ed JH |
186 | struct commit *commit = pop_one_commit(list_p); |
187 | int flags = commit->object.flags & all_mask; | |
f76412ed | 188 | |
9ce70285 | 189 | if (!still_interesting && extra <= 0) |
f76412ed JH |
190 | break; |
191 | ||
192 | mark_seen(commit, seen_p); | |
193 | if ((flags & all_revs) == all_revs) | |
194 | flags |= UNINTERESTING; | |
195 | parents = commit->parents; | |
196 | ||
197 | while (parents) { | |
198 | struct commit *p = parents->item; | |
199 | int this_flag = p->object.flags; | |
200 | parents = parents->next; | |
f76412ed JH |
201 | if ((this_flag & flags) == flags) |
202 | continue; | |
6b209d47 JH |
203 | if (!p->object.parsed) |
204 | parse_commit(p); | |
f76412ed JH |
205 | if (mark_seen(p, seen_p) && !still_interesting) |
206 | extra--; | |
207 | p->object.flags |= flags; | |
208 | insert_by_date(p, list_p); | |
209 | } | |
210 | } | |
6b209d47 JH |
211 | |
212 | /* | |
213 | * Postprocess to complete well-poisoning. | |
214 | * | |
215 | * At this point we have all the commits we have seen in | |
216 | * seen_p list (which happens to be sorted chronologically but | |
217 | * it does not really matter). Mark anything that can be | |
218 | * reached from uninteresting commits not interesting. | |
219 | */ | |
220 | for (;;) { | |
221 | int changed = 0; | |
222 | struct commit_list *s; | |
223 | for (s = *seen_p; s; s = s->next) { | |
224 | struct commit *c = s->item; | |
225 | struct commit_list *parents; | |
226 | ||
227 | if (((c->object.flags & all_revs) != all_revs) && | |
228 | !(c->object.flags & UNINTERESTING)) | |
229 | continue; | |
230 | ||
231 | /* The current commit is either a merge base or | |
232 | * already uninteresting one. Mark its parents | |
233 | * as uninteresting commits _only_ if they are | |
234 | * already parsed. No reason to find new ones | |
235 | * here. | |
236 | */ | |
237 | parents = c->parents; | |
238 | while (parents) { | |
239 | struct commit *p = parents->item; | |
240 | parents = parents->next; | |
241 | if (!(p->object.flags & UNINTERESTING)) { | |
242 | p->object.flags |= UNINTERESTING; | |
243 | changed = 1; | |
244 | } | |
245 | } | |
246 | } | |
247 | if (!changed) | |
248 | break; | |
249 | } | |
f76412ed JH |
250 | } |
251 | ||
013f276e | 252 | static void show_one_commit(struct commit *commit, int no_name) |
f76412ed | 253 | { |
6b209d47 | 254 | char pretty[256], *cp; |
f76412ed | 255 | struct commit_name *name = commit->object.util; |
0a2ba738 JH |
256 | if (commit->object.parsed) |
257 | pretty_print_commit(CMIT_FMT_ONELINE, commit->buffer, ~0, | |
258 | pretty, sizeof(pretty)); | |
259 | else | |
260 | strcpy(pretty, "(unavailable)"); | |
f76412ed JH |
261 | if (!strncmp(pretty, "[PATCH] ", 8)) |
262 | cp = pretty + 8; | |
263 | else | |
264 | cp = pretty; | |
013f276e JH |
265 | |
266 | if (!no_name) { | |
267 | if (name && name->head_name) { | |
268 | printf("[%s", name->head_name); | |
269 | if (name->generation) { | |
270 | if (name->generation == 1) | |
271 | printf("^"); | |
272 | else | |
273 | printf("~%d", name->generation); | |
274 | } | |
275 | printf("] "); | |
276 | } | |
277 | else | |
278 | printf("[%s] ", | |
279 | find_unique_abbrev(commit->object.sha1, 7)); | |
f76412ed JH |
280 | } |
281 | puts(cp); | |
282 | } | |
283 | ||
284 | static char *ref_name[MAX_REVS + 1]; | |
285 | static int ref_name_cnt; | |
286 | ||
bb5ebed7 JH |
287 | static const char *find_digit_prefix(const char *s, int *v) |
288 | { | |
289 | const char *p; | |
290 | int ver; | |
291 | char ch; | |
292 | ||
293 | for (p = s, ver = 0; | |
294 | '0' <= (ch = *p) && ch <= '9'; | |
295 | p++) | |
296 | ver = ver * 10 + ch - '0'; | |
297 | *v = ver; | |
298 | return p; | |
299 | } | |
300 | ||
301 | ||
302 | static int version_cmp(const char *a, const char *b) | |
303 | { | |
304 | while (1) { | |
305 | int va, vb; | |
306 | ||
307 | a = find_digit_prefix(a, &va); | |
308 | b = find_digit_prefix(b, &vb); | |
309 | if (va != vb) | |
310 | return va - vb; | |
311 | ||
312 | while (1) { | |
313 | int ca = *a; | |
314 | int cb = *b; | |
315 | if ('0' <= ca && ca <= '9') | |
316 | ca = 0; | |
317 | if ('0' <= cb && cb <= '9') | |
318 | cb = 0; | |
319 | if (ca != cb) | |
320 | return ca - cb; | |
321 | if (!ca) | |
322 | break; | |
323 | a++; | |
324 | b++; | |
325 | } | |
326 | if (!*a && !*b) | |
327 | return 0; | |
328 | } | |
329 | } | |
330 | ||
628894b2 JH |
331 | static int compare_ref_name(const void *a_, const void *b_) |
332 | { | |
333 | const char * const*a = a_, * const*b = b_; | |
bb5ebed7 | 334 | return version_cmp(*a, *b); |
628894b2 JH |
335 | } |
336 | ||
337 | static void sort_ref_range(int bottom, int top) | |
338 | { | |
339 | qsort(ref_name + bottom, top - bottom, sizeof(ref_name[0]), | |
340 | compare_ref_name); | |
341 | } | |
342 | ||
f76412ed JH |
343 | static int append_ref(const char *refname, const unsigned char *sha1) |
344 | { | |
345 | struct commit *commit = lookup_commit_reference_gently(sha1, 1); | |
bb5ebed7 JH |
346 | int i; |
347 | ||
f76412ed JH |
348 | if (!commit) |
349 | return 0; | |
bb5ebed7 JH |
350 | /* Avoid adding the same thing twice */ |
351 | for (i = 0; i < ref_name_cnt; i++) | |
352 | if (!strcmp(refname, ref_name[i])) | |
353 | return 0; | |
354 | ||
79778e46 | 355 | if (MAX_REVS <= ref_name_cnt) { |
f76412ed | 356 | fprintf(stderr, "warning: ignoring %s; " |
7246ed43 | 357 | "cannot handle more than %d refs\n", |
f76412ed JH |
358 | refname, MAX_REVS); |
359 | return 0; | |
360 | } | |
361 | ref_name[ref_name_cnt++] = strdup(refname); | |
362 | ref_name[ref_name_cnt] = NULL; | |
363 | return 0; | |
364 | } | |
365 | ||
366 | static int append_head_ref(const char *refname, const unsigned char *sha1) | |
367 | { | |
92421502 JH |
368 | unsigned char tmp[20]; |
369 | int ofs = 11; | |
370 | if (strncmp(refname, "refs/heads/", ofs)) | |
f76412ed | 371 | return 0; |
92421502 JH |
372 | /* If both heads/foo and tags/foo exists, get_sha1 would |
373 | * get confused. | |
374 | */ | |
375 | if (get_sha1(refname + ofs, tmp) || memcmp(tmp, sha1, 20)) | |
376 | ofs = 5; | |
377 | return append_ref(refname + ofs, sha1); | |
f76412ed JH |
378 | } |
379 | ||
380 | static int append_tag_ref(const char *refname, const unsigned char *sha1) | |
381 | { | |
382 | if (strncmp(refname, "refs/tags/", 10)) | |
383 | return 0; | |
384 | return append_ref(refname + 5, sha1); | |
385 | } | |
386 | ||
287f8600 JH |
387 | static const char *match_ref_pattern = NULL; |
388 | static int match_ref_slash = 0; | |
389 | static int count_slash(const char *s) | |
390 | { | |
391 | int cnt = 0; | |
392 | while (*s) | |
393 | if (*s++ == '/') | |
394 | cnt++; | |
395 | return cnt; | |
396 | } | |
397 | ||
398 | static int append_matching_ref(const char *refname, const unsigned char *sha1) | |
399 | { | |
400 | /* we want to allow pattern hold/<asterisk> to show all | |
401 | * branches under refs/heads/hold/, and v0.99.9? to show | |
402 | * refs/tags/v0.99.9a and friends. | |
403 | */ | |
404 | const char *tail; | |
405 | int slash = count_slash(refname); | |
406 | for (tail = refname; *tail && match_ref_slash < slash; ) | |
407 | if (*tail++ == '/') | |
408 | slash--; | |
409 | if (!*tail) | |
410 | return 0; | |
411 | if (fnmatch(match_ref_pattern, tail, 0)) | |
412 | return 0; | |
413 | if (!strncmp("refs/heads/", refname, 11)) | |
414 | return append_head_ref(refname, sha1); | |
415 | if (!strncmp("refs/tags/", refname, 10)) | |
416 | return append_tag_ref(refname, sha1); | |
417 | return append_ref(refname, sha1); | |
418 | } | |
419 | ||
f76412ed JH |
420 | static void snarf_refs(int head, int tag) |
421 | { | |
628894b2 JH |
422 | if (head) { |
423 | int orig_cnt = ref_name_cnt; | |
f76412ed | 424 | for_each_ref(append_head_ref); |
628894b2 JH |
425 | sort_ref_range(orig_cnt, ref_name_cnt); |
426 | } | |
427 | if (tag) { | |
428 | int orig_cnt = ref_name_cnt; | |
f76412ed | 429 | for_each_ref(append_tag_ref); |
628894b2 JH |
430 | sort_ref_range(orig_cnt, ref_name_cnt); |
431 | } | |
f76412ed JH |
432 | } |
433 | ||
434 | static int rev_is_head(char *head_path, int headlen, | |
435 | char *name, | |
436 | unsigned char *head_sha1, unsigned char *sha1) | |
437 | { | |
438 | int namelen; | |
439 | if ((!head_path[0]) || memcmp(head_sha1, sha1, 20)) | |
440 | return 0; | |
441 | namelen = strlen(name); | |
442 | if ((headlen < namelen) || | |
443 | memcmp(head_path + headlen - namelen, name, namelen)) | |
444 | return 0; | |
445 | if (headlen == namelen || | |
446 | head_path[headlen - namelen - 1] == '/') | |
447 | return 1; | |
448 | return 0; | |
449 | } | |
450 | ||
451 | static int show_merge_base(struct commit_list *seen, int num_rev) | |
452 | { | |
453 | int all_mask = ((1u << (REV_SHIFT + num_rev)) - 1); | |
454 | int all_revs = all_mask & ~((1u << REV_SHIFT) - 1); | |
2f0f8b71 | 455 | int exit_status = 1; |
f76412ed JH |
456 | |
457 | while (seen) { | |
458 | struct commit *commit = pop_one_commit(&seen); | |
459 | int flags = commit->object.flags & all_mask; | |
460 | if (!(flags & UNINTERESTING) && | |
461 | ((flags & all_revs) == all_revs)) { | |
462 | puts(sha1_to_hex(commit->object.sha1)); | |
2f0f8b71 JH |
463 | exit_status = 0; |
464 | commit->object.flags |= UNINTERESTING; | |
f76412ed JH |
465 | } |
466 | } | |
2f0f8b71 | 467 | return exit_status; |
f76412ed JH |
468 | } |
469 | ||
1f8af483 JH |
470 | static int show_independent(struct commit **rev, |
471 | int num_rev, | |
472 | char **ref_name, | |
473 | unsigned int *rev_mask) | |
474 | { | |
475 | int i; | |
476 | ||
477 | for (i = 0; i < num_rev; i++) { | |
478 | struct commit *commit = rev[i]; | |
479 | unsigned int flag = rev_mask[i]; | |
480 | ||
481 | if (commit->object.flags == flag) | |
482 | puts(sha1_to_hex(commit->object.sha1)); | |
483 | commit->object.flags |= UNINTERESTING; | |
484 | } | |
485 | return 0; | |
486 | } | |
487 | ||
287f8600 JH |
488 | static void append_one_rev(const char *av) |
489 | { | |
490 | unsigned char revkey[20]; | |
491 | if (!get_sha1(av, revkey)) { | |
492 | append_ref(av, revkey); | |
493 | return; | |
494 | } | |
495 | if (strchr(av, '*') || strchr(av, '?')) { | |
496 | /* glob style match */ | |
497 | int saved_matches = ref_name_cnt; | |
498 | match_ref_pattern = av; | |
499 | match_ref_slash = count_slash(av); | |
500 | for_each_ref(append_matching_ref); | |
501 | if (saved_matches == ref_name_cnt && | |
502 | ref_name_cnt < MAX_REVS) | |
503 | error("no matching refs with %s", av); | |
06d900cf JH |
504 | if (saved_matches + 1 < ref_name_cnt) |
505 | sort_ref_range(saved_matches, ref_name_cnt); | |
287f8600 JH |
506 | return; |
507 | } | |
508 | die("bad sha1 reference %s", av); | |
509 | } | |
510 | ||
f76412ed JH |
511 | int main(int ac, char **av) |
512 | { | |
513 | struct commit *rev[MAX_REVS], *commit; | |
514 | struct commit_list *list = NULL, *seen = NULL; | |
1f8af483 | 515 | unsigned int rev_mask[MAX_REVS]; |
f76412ed JH |
516 | int num_rev, i, extra = 0; |
517 | int all_heads = 0, all_tags = 0; | |
6b209d47 | 518 | int all_mask, all_revs; |
f76412ed | 519 | char head_path[128]; |
8098a178 | 520 | const char *head_path_p; |
f76412ed JH |
521 | int head_path_len; |
522 | unsigned char head_sha1[20]; | |
523 | int merge_base = 0; | |
1f8af483 | 524 | int independent = 0; |
013f276e JH |
525 | int no_name = 0; |
526 | int sha1_name = 0; | |
6b209d47 JH |
527 | int shown_merge_point = 0; |
528 | int topo_order = 0; | |
f76412ed | 529 | |
076b2324 JH |
530 | setup_git_directory(); |
531 | ||
f76412ed JH |
532 | while (1 < ac && av[1][0] == '-') { |
533 | char *arg = av[1]; | |
534 | if (!strcmp(arg, "--all")) | |
535 | all_heads = all_tags = 1; | |
536 | else if (!strcmp(arg, "--heads")) | |
537 | all_heads = 1; | |
538 | else if (!strcmp(arg, "--tags")) | |
539 | all_tags = 1; | |
540 | else if (!strcmp(arg, "--more")) | |
541 | extra = 1; | |
1f8af483 JH |
542 | else if (!strcmp(arg, "--list")) |
543 | extra = -1; | |
013f276e JH |
544 | else if (!strcmp(arg, "--no-name")) |
545 | no_name = 1; | |
546 | else if (!strcmp(arg, "--sha1-name")) | |
547 | sha1_name = 1; | |
1f8af483 | 548 | else if (!strncmp(arg, "--more=", 7)) |
f76412ed | 549 | extra = atoi(arg + 7); |
f76412ed JH |
550 | else if (!strcmp(arg, "--merge-base")) |
551 | merge_base = 1; | |
1f8af483 JH |
552 | else if (!strcmp(arg, "--independent")) |
553 | independent = 1; | |
6b209d47 JH |
554 | else if (!strcmp(arg, "--topo-order")) |
555 | topo_order = 1; | |
f76412ed JH |
556 | else |
557 | usage(show_branch_usage); | |
558 | ac--; av++; | |
559 | } | |
560 | ac--; av++; | |
561 | ||
1f8af483 JH |
562 | /* Only one of these is allowed */ |
563 | if (1 < independent + merge_base + (extra != 0)) | |
564 | usage(show_branch_usage); | |
565 | ||
bb5ebed7 JH |
566 | /* If nothing is specified, show all branches by default */ |
567 | if (ac + all_heads + all_tags == 0) | |
568 | all_heads = 1; | |
569 | ||
f76412ed JH |
570 | if (all_heads + all_tags) |
571 | snarf_refs(all_heads, all_tags); | |
bb5ebed7 JH |
572 | while (0 < ac) { |
573 | append_one_rev(*av); | |
574 | ac--; av++; | |
287f8600 | 575 | } |
bb5ebed7 | 576 | |
287f8600 JH |
577 | if (!ref_name_cnt) { |
578 | fprintf(stderr, "No revs to be shown.\n"); | |
579 | exit(0); | |
580 | } | |
f76412ed JH |
581 | |
582 | for (num_rev = 0; ref_name[num_rev]; num_rev++) { | |
583 | unsigned char revkey[20]; | |
1f8af483 | 584 | unsigned int flag = 1u << (num_rev + REV_SHIFT); |
f76412ed JH |
585 | |
586 | if (MAX_REVS <= num_rev) | |
587 | die("cannot handle more than %d revs.", MAX_REVS); | |
588 | if (get_sha1(ref_name[num_rev], revkey)) | |
7246ed43 | 589 | die("'%s' is not a valid ref.", ref_name[num_rev]); |
f76412ed JH |
590 | commit = lookup_commit_reference(revkey); |
591 | if (!commit) | |
592 | die("cannot find commit %s (%s)", | |
593 | ref_name[num_rev], revkey); | |
594 | parse_commit(commit); | |
f76412ed JH |
595 | mark_seen(commit, &seen); |
596 | ||
597 | /* rev#0 uses bit REV_SHIFT, rev#1 uses bit REV_SHIFT+1, | |
598 | * and so on. REV_SHIFT bits from bit 0 are used for | |
599 | * internal bookkeeping. | |
600 | */ | |
1f8af483 JH |
601 | commit->object.flags |= flag; |
602 | if (commit->object.flags == flag) | |
603 | insert_by_date(commit, &list); | |
f76412ed JH |
604 | rev[num_rev] = commit; |
605 | } | |
1f8af483 JH |
606 | for (i = 0; i < num_rev; i++) |
607 | rev_mask[i] = rev[i]->object.flags; | |
608 | ||
609 | if (0 <= extra) | |
610 | join_revs(&list, &seen, num_rev, extra); | |
f76412ed | 611 | |
8098a178 JH |
612 | head_path_p = resolve_ref(git_path("HEAD"), head_sha1, 1); |
613 | if (head_path_p) { | |
614 | head_path_len = strlen(head_path_p); | |
615 | memcpy(head_path, head_path_p, head_path_len + 1); | |
616 | } | |
617 | else { | |
618 | head_path_len = 0; | |
f76412ed | 619 | head_path[0] = 0; |
8098a178 | 620 | } |
f76412ed JH |
621 | |
622 | if (merge_base) | |
623 | return show_merge_base(seen, num_rev); | |
624 | ||
1f8af483 JH |
625 | if (independent) |
626 | return show_independent(rev, num_rev, ref_name, rev_mask); | |
627 | ||
628 | /* Show list; --more=-1 means list-only */ | |
c9d023b2 | 629 | if (1 < num_rev || extra < 0) { |
f76412ed JH |
630 | for (i = 0; i < num_rev; i++) { |
631 | int j; | |
632 | int is_head = rev_is_head(head_path, | |
633 | head_path_len, | |
634 | ref_name[i], | |
635 | head_sha1, | |
636 | rev[i]->object.sha1); | |
1f8af483 JH |
637 | if (extra < 0) |
638 | printf("%c [%s] ", | |
639 | is_head ? '*' : ' ', ref_name[i]); | |
640 | else { | |
641 | for (j = 0; j < i; j++) | |
642 | putchar(' '); | |
643 | printf("%c [%s] ", | |
644 | is_head ? '*' : '!', ref_name[i]); | |
645 | } | |
013f276e JH |
646 | /* header lines never need name */ |
647 | show_one_commit(rev[i], 1); | |
f76412ed | 648 | } |
1f8af483 JH |
649 | if (0 <= extra) { |
650 | for (i = 0; i < num_rev; i++) | |
651 | putchar('-'); | |
652 | putchar('\n'); | |
653 | } | |
f5e375c9 | 654 | } |
1f8af483 JH |
655 | if (extra < 0) |
656 | exit(0); | |
f5e375c9 | 657 | |
8e5dd22b | 658 | /* Sort topologically */ |
6b209d47 JH |
659 | if (topo_order) |
660 | sort_in_topological_order(&seen); | |
8e5dd22b JH |
661 | |
662 | /* Give names to commits */ | |
013f276e JH |
663 | if (!sha1_name && !no_name) |
664 | name_commits(seen, rev, ref_name, num_rev); | |
8e5dd22b JH |
665 | |
666 | all_mask = ((1u << (REV_SHIFT + num_rev)) - 1); | |
667 | all_revs = all_mask & ~((1u << REV_SHIFT) - 1); | |
8e5dd22b | 668 | |
f76412ed JH |
669 | while (seen) { |
670 | struct commit *commit = pop_one_commit(&seen); | |
671 | int this_flag = commit->object.flags; | |
f5e375c9 | 672 | |
6b209d47 | 673 | shown_merge_point |= ((this_flag & all_revs) == all_revs); |
8e5dd22b | 674 | |
f5e375c9 JH |
675 | if (1 < num_rev) { |
676 | for (i = 0; i < num_rev; i++) | |
677 | putchar((this_flag & (1u << (i + REV_SHIFT))) | |
678 | ? '+' : ' '); | |
679 | putchar(' '); | |
680 | } | |
013f276e | 681 | show_one_commit(commit, no_name); |
6b209d47 JH |
682 | |
683 | if (shown_merge_point && --extra < 0) | |
684 | break; | |
f76412ed JH |
685 | } |
686 | return 0; | |
687 | } |