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Commit | Line | Data |
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908e5310 | 1 | #include "cache.h" |
b2141fc1 | 2 | #include "config.h" |
697cc8ef | 3 | #include "lockfile.h" |
908e5310 | 4 | #include "commit.h" |
635d4134 | 5 | #include "tag.h" |
908e5310 | 6 | #include "refs.h" |
9a0eaf83 | 7 | #include "builtin.h" |
23615708 | 8 | #include "exec_cmd.h" |
166185be | 9 | #include "parse-options.h" |
9f67d2e8 | 10 | #include "diff.h" |
29d8a834 | 11 | #include "hashmap.h" |
45bc950b | 12 | #include "argv-array.h" |
b0176ce6 | 13 | #include "run-command.h" |
908e5310 | 14 | |
c4472643 | 15 | #define SEEN (1u << 0) |
8713ab30 SP |
16 | #define MAX_TAGS (FLAG_BITS - 1) |
17 | ||
166185be | 18 | static const char * const describe_usage[] = { |
9c9b4f2f AH |
19 | N_("git describe [<options>] [<commit-ish>...]"), |
20 | N_("git describe [<options>] --dirty"), | |
166185be PH |
21 | NULL |
22 | }; | |
908e5310 | 23 | |
8713ab30 | 24 | static int debug; /* Display lots of verbose info */ |
7e425c4f SP |
25 | static int all; /* Any valid ref can be used */ |
26 | static int tags; /* Allow lightweight tags */ | |
518120e3 | 27 | static int longformat; |
e00dd1e9 | 28 | static int first_parent; |
dce96489 | 29 | static int abbrev = -1; /* unspecified */ |
8713ab30 | 30 | static int max_candidates = 10; |
29d8a834 | 31 | static struct hashmap names; |
d1645d02 | 32 | static int have_util; |
43f8080e | 33 | static struct string_list patterns = STRING_LIST_INIT_NODUP; |
77d21f29 | 34 | static struct string_list exclude_patterns = STRING_LIST_INIT_NODUP; |
da2478db | 35 | static int always; |
b0176ce6 | 36 | static const char *suffix, *dirty, *broken; |
9f67d2e8 JP |
37 | |
38 | /* diff-index command arguments to check if working tree is dirty. */ | |
39 | static const char *diff_index_args[] = { | |
40 | "diff-index", "--quiet", "HEAD", "--", NULL | |
41 | }; | |
42 | ||
e7eb5034 | 43 | struct commit_name { |
29d8a834 | 44 | struct hashmap_entry entry; |
6439b5d9 | 45 | struct object_id peeled; |
212945d4 | 46 | struct tag *tag; |
03e8b541 SP |
47 | unsigned prio:2; /* annotated tag = 2, tag = 1, head = 0 */ |
48 | unsigned name_checked:1; | |
6439b5d9 | 49 | struct object_id oid; |
219a0f33 | 50 | char *path; |
e7eb5034 | 51 | }; |
c4472643 | 52 | |
cf69fd49 | 53 | static const char *prio_names[] = { |
646c3bd1 | 54 | N_("head"), N_("lightweight"), N_("annotated"), |
cf69fd49 | 55 | }; |
908e5310 | 56 | |
7663cdc8 | 57 | static int commit_name_cmp(const void *unused_cmp_data, |
0068cede SB |
58 | const void *entry, |
59 | const void *entry_or_key, | |
7663cdc8 | 60 | const void *peeled) |
29d8a834 | 61 | { |
0068cede SB |
62 | const struct commit_name *cn1 = entry; |
63 | const struct commit_name *cn2 = entry_or_key; | |
64 | ||
6439b5d9 | 65 | return oidcmp(&cn1->peeled, peeled ? peeled : &cn2->peeled); |
29d8a834 KB |
66 | } |
67 | ||
6439b5d9 | 68 | static inline struct commit_name *find_commit_name(const struct object_id *peeled) |
3cfa4db3 | 69 | { |
6439b5d9 | 70 | return hashmap_get_from_hash(&names, sha1hash(peeled->hash), peeled->hash); |
d1645d02 AK |
71 | } |
72 | ||
03e8b541 SP |
73 | static int replace_name(struct commit_name *e, |
74 | int prio, | |
6439b5d9 | 75 | const struct object_id *oid, |
03e8b541 SP |
76 | struct tag **tag) |
77 | { | |
78 | if (!e || e->prio < prio) | |
79 | return 1; | |
80 | ||
81 | if (e->prio == 2 && prio == 2) { | |
82 | /* Multiple annotated tags point to the same commit. | |
83 | * Select one to keep based upon their tagger date. | |
84 | */ | |
85 | struct tag *t; | |
86 | ||
87 | if (!e->tag) { | |
d3101b53 | 88 | t = lookup_tag(&e->oid); |
03e8b541 SP |
89 | if (!t || parse_tag(t)) |
90 | return 1; | |
91 | e->tag = t; | |
92 | } | |
93 | ||
d3101b53 | 94 | t = lookup_tag(oid); |
03e8b541 SP |
95 | if (!t || parse_tag(t)) |
96 | return 0; | |
97 | *tag = t; | |
98 | ||
99 | if (e->tag->date < t->date) | |
100 | return 1; | |
101 | } | |
102 | ||
103 | return 0; | |
104 | } | |
105 | ||
64deb858 | 106 | static void add_to_known_names(const char *path, |
6439b5d9 | 107 | const struct object_id *peeled, |
212945d4 | 108 | int prio, |
6439b5d9 | 109 | const struct object_id *oid) |
908e5310 | 110 | { |
3cfa4db3 | 111 | struct commit_name *e = find_commit_name(peeled); |
03e8b541 | 112 | struct tag *tag = NULL; |
6439b5d9 | 113 | if (replace_name(e, prio, oid, &tag)) { |
1e1ade18 AK |
114 | if (!e) { |
115 | e = xmalloc(sizeof(struct commit_name)); | |
6439b5d9 | 116 | oidcpy(&e->peeled, peeled); |
117 | hashmap_entry_init(e, sha1hash(peeled->hash)); | |
29d8a834 | 118 | hashmap_add(&names, e); |
219a0f33 | 119 | e->path = NULL; |
1e1ade18 | 120 | } |
03e8b541 | 121 | e->tag = tag; |
e7eb5034 | 122 | e->prio = prio; |
03e8b541 | 123 | e->name_checked = 0; |
6439b5d9 | 124 | oidcpy(&e->oid, oid); |
219a0f33 MH |
125 | free(e->path); |
126 | e->path = xstrdup(path); | |
908e5310 | 127 | } |
908e5310 LT |
128 | } |
129 | ||
99a2cfbf | 130 | static int get_name(const char *path, const struct object_id *oid, int flag, void *cb_data) |
908e5310 | 131 | { |
6d68b2ab | 132 | int is_tag = 0; |
99a2cfbf | 133 | struct object_id peeled; |
46e1d6eb | 134 | int is_annotated, prio; |
6d68b2ab MK |
135 | const char *path_to_match = NULL; |
136 | ||
137 | if (skip_prefix(path, "refs/tags/", &path_to_match)) { | |
138 | is_tag = 1; | |
139 | } else if (all) { | |
140 | if ((exclude_patterns.nr || patterns.nr) && | |
141 | !skip_prefix(path, "refs/heads/", &path_to_match) && | |
142 | !skip_prefix(path, "refs/remotes/", &path_to_match)) { | |
143 | /* Only accept reference of known type if there are match/exclude patterns */ | |
144 | return 0; | |
145 | } | |
146 | } else { | |
147 | /* Reject anything outside refs/tags/ unless --all */ | |
8a5a1884 | 148 | return 0; |
6d68b2ab | 149 | } |
8a5a1884 | 150 | |
77d21f29 JK |
151 | /* |
152 | * If we're given exclude patterns, first exclude any tag which match | |
153 | * any of the exclude pattern. | |
154 | */ | |
155 | if (exclude_patterns.nr) { | |
156 | struct string_list_item *item; | |
157 | ||
77d21f29 | 158 | for_each_string_list_item(item, &exclude_patterns) { |
6d68b2ab | 159 | if (!wildmatch(item->string, path_to_match, 0)) |
77d21f29 JK |
160 | return 0; |
161 | } | |
162 | } | |
163 | ||
43f8080e JK |
164 | /* |
165 | * If we're given patterns, accept only tags which match at least one | |
166 | * pattern. | |
167 | */ | |
168 | if (patterns.nr) { | |
da769d29 | 169 | int found = 0; |
43f8080e JK |
170 | struct string_list_item *item; |
171 | ||
43f8080e | 172 | for_each_string_list_item(item, &patterns) { |
6d68b2ab | 173 | if (!wildmatch(item->string, path_to_match, 0)) { |
da769d29 | 174 | found = 1; |
43f8080e | 175 | break; |
da769d29 MK |
176 | } |
177 | } | |
43f8080e | 178 | |
da769d29 | 179 | if (!found) |
43f8080e | 180 | return 0; |
43f8080e | 181 | } |
46e1d6eb JH |
182 | |
183 | /* Is it annotated? */ | |
99a2cfbf MH |
184 | if (!peel_ref(path, peeled.hash)) { |
185 | is_annotated = !!oidcmp(oid, &peeled); | |
feededd0 | 186 | } else { |
99a2cfbf | 187 | oidcpy(&peeled, oid); |
46e1d6eb | 188 | is_annotated = 0; |
feededd0 | 189 | } |
64deb858 | 190 | |
46e1d6eb JH |
191 | /* |
192 | * By default, we only use annotated tags, but with --tags | |
193 | * we fall back to lightweight ones (even without --tags, | |
194 | * we still remember lightweight ones, only to give hints | |
195 | * in an error message). --all allows any refs to be used. | |
2d9e7c9f | 196 | */ |
46e1d6eb JH |
197 | if (is_annotated) |
198 | prio = 2; | |
199 | else if (is_tag) | |
200 | prio = 1; | |
64deb858 JH |
201 | else |
202 | prio = 0; | |
203 | ||
6439b5d9 | 204 | add_to_known_names(all ? path + 5 : path + 10, &peeled, prio, oid); |
908e5310 LT |
205 | return 0; |
206 | } | |
207 | ||
80dbae03 | 208 | struct possible_tag { |
80dbae03 | 209 | struct commit_name *name; |
cf69fd49 SP |
210 | int depth; |
211 | int found_order; | |
8713ab30 | 212 | unsigned flag_within; |
80dbae03 SP |
213 | }; |
214 | ||
cf69fd49 SP |
215 | static int compare_pt(const void *a_, const void *b_) |
216 | { | |
217 | struct possible_tag *a = (struct possible_tag *)a_; | |
218 | struct possible_tag *b = (struct possible_tag *)b_; | |
cf69fd49 SP |
219 | if (a->depth != b->depth) |
220 | return a->depth - b->depth; | |
221 | if (a->found_order != b->found_order) | |
222 | return a->found_order - b->found_order; | |
223 | return 0; | |
224 | } | |
225 | ||
1b600e65 SP |
226 | static unsigned long finish_depth_computation( |
227 | struct commit_list **list, | |
228 | struct possible_tag *best) | |
229 | { | |
230 | unsigned long seen_commits = 0; | |
231 | while (*list) { | |
232 | struct commit *c = pop_commit(list); | |
233 | struct commit_list *parents = c->parents; | |
234 | seen_commits++; | |
235 | if (c->object.flags & best->flag_within) { | |
236 | struct commit_list *a = *list; | |
237 | while (a) { | |
238 | struct commit *i = a->item; | |
239 | if (!(i->object.flags & best->flag_within)) | |
240 | break; | |
241 | a = a->next; | |
242 | } | |
243 | if (!a) | |
244 | break; | |
245 | } else | |
246 | best->depth++; | |
247 | while (parents) { | |
248 | struct commit *p = parents->item; | |
249 | parse_commit(p); | |
250 | if (!(p->object.flags & SEEN)) | |
47e44ed1 | 251 | commit_list_insert_by_date(p, list); |
1b600e65 SP |
252 | p->object.flags |= c->object.flags; |
253 | parents = parents->next; | |
254 | } | |
255 | } | |
256 | return seen_commits; | |
257 | } | |
258 | ||
212945d4 SP |
259 | static void display_name(struct commit_name *n) |
260 | { | |
261 | if (n->prio == 2 && !n->tag) { | |
d3101b53 | 262 | n->tag = lookup_tag(&n->oid); |
03e8b541 | 263 | if (!n->tag || parse_tag(n->tag)) |
e41f1cb3 | 264 | die(_("annotated tag %s not available"), n->path); |
03e8b541 SP |
265 | } |
266 | if (n->tag && !n->name_checked) { | |
267 | if (!n->tag->tag) | |
e41f1cb3 | 268 | die(_("annotated tag %s has no embedded name"), n->path); |
81dc223d | 269 | if (strcmp(n->tag->tag, all ? n->path + 5 : n->path)) |
e41f1cb3 | 270 | warning(_("tag '%s' is really '%s' here"), n->tag->tag, n->path); |
03e8b541 | 271 | n->name_checked = 1; |
212945d4 SP |
272 | } |
273 | ||
274 | if (n->tag) | |
275 | printf("%s", n->tag->tag); | |
276 | else | |
277 | printf("%s", n->path); | |
870cf7d6 JH |
278 | } |
279 | ||
6439b5d9 | 280 | static void show_suffix(int depth, const struct object_id *oid) |
870cf7d6 | 281 | { |
6439b5d9 | 282 | printf("-%d-g%s", depth, find_unique_abbrev(oid->hash, abbrev)); |
212945d4 SP |
283 | } |
284 | ||
554fe20d | 285 | static void describe(const char *arg, int last_one) |
908e5310 | 286 | { |
6439b5d9 | 287 | struct object_id oid; |
8713ab30 | 288 | struct commit *cmit, *gave_up_on = NULL; |
908e5310 | 289 | struct commit_list *list; |
908e5310 | 290 | struct commit_name *n; |
cf69fd49 | 291 | struct possible_tag all_matches[MAX_TAGS]; |
8713ab30 SP |
292 | unsigned int match_cnt = 0, annotated_cnt = 0, cur_match; |
293 | unsigned long seen_commits = 0; | |
4d23660e | 294 | unsigned int unannotated_cnt = 0; |
908e5310 | 295 | |
6439b5d9 | 296 | if (get_oid(arg, &oid)) |
e41f1cb3 | 297 | die(_("Not a valid object name %s"), arg); |
bc83266a | 298 | cmit = lookup_commit_reference(&oid); |
4c34a2c5 | 299 | if (!cmit) |
e41f1cb3 | 300 | die(_("%s is not a valid '%s' object"), arg, commit_type); |
4c34a2c5 | 301 | |
6439b5d9 | 302 | n = find_commit_name(&cmit->object.oid); |
7a0d61bb | 303 | if (n && (tags || all || n->prio == 2)) { |
870cf7d6 JH |
304 | /* |
305 | * Exact match to an existing ref. | |
306 | */ | |
212945d4 | 307 | display_name(n); |
870cf7d6 | 308 | if (longformat) |
6439b5d9 | 309 | show_suffix(0, n->tag ? &n->tag->tagged->oid : &oid); |
b0176ce6 SB |
310 | if (suffix) |
311 | printf("%s", suffix); | |
212945d4 | 312 | printf("\n"); |
908e5310 LT |
313 | return; |
314 | } | |
315 | ||
2c33f757 | 316 | if (!max_candidates) |
f2fd0760 | 317 | die(_("no tag exactly matches '%s'"), oid_to_hex(&cmit->object.oid)); |
8713ab30 | 318 | if (debug) |
e41f1cb3 | 319 | fprintf(stderr, _("searching to describe %s\n"), arg); |
8713ab30 | 320 | |
d1645d02 | 321 | if (!have_util) { |
29d8a834 KB |
322 | struct hashmap_iter iter; |
323 | struct commit *c; | |
324 | struct commit_name *n = hashmap_iter_first(&names, &iter); | |
325 | for (; n; n = hashmap_iter_next(&iter)) { | |
bc83266a | 326 | c = lookup_commit_reference_gently(&n->peeled, 1); |
29d8a834 KB |
327 | if (c) |
328 | c->util = n; | |
329 | } | |
d1645d02 AK |
330 | have_util = 1; |
331 | } | |
332 | ||
908e5310 | 333 | list = NULL; |
8713ab30 | 334 | cmit->object.flags = SEEN; |
908e5310 LT |
335 | commit_list_insert(cmit, &list); |
336 | while (list) { | |
80dbae03 | 337 | struct commit *c = pop_commit(&list); |
dccd0c2a | 338 | struct commit_list *parents = c->parents; |
8713ab30 | 339 | seen_commits++; |
e7eb5034 | 340 | n = c->util; |
908e5310 | 341 | if (n) { |
4d23660e TR |
342 | if (!tags && !all && n->prio < 2) { |
343 | unannotated_cnt++; | |
344 | } else if (match_cnt < max_candidates) { | |
8713ab30 SP |
345 | struct possible_tag *t = &all_matches[match_cnt++]; |
346 | t->name = n; | |
347 | t->depth = seen_commits - 1; | |
348 | t->flag_within = 1u << match_cnt; | |
8a8169c0 | 349 | t->found_order = match_cnt; |
8713ab30 SP |
350 | c->object.flags |= t->flag_within; |
351 | if (n->prio == 2) | |
352 | annotated_cnt++; | |
353 | } | |
354 | else { | |
355 | gave_up_on = c; | |
356 | break; | |
357 | } | |
358 | } | |
359 | for (cur_match = 0; cur_match < match_cnt; cur_match++) { | |
360 | struct possible_tag *t = &all_matches[cur_match]; | |
361 | if (!(c->object.flags & t->flag_within)) | |
362 | t->depth++; | |
363 | } | |
364 | if (annotated_cnt && !list) { | |
365 | if (debug) | |
e41f1cb3 | 366 | fprintf(stderr, _("finished search at %s\n"), |
f2fd0760 | 367 | oid_to_hex(&c->object.oid)); |
8713ab30 | 368 | break; |
dccd0c2a SP |
369 | } |
370 | while (parents) { | |
371 | struct commit *p = parents->item; | |
372 | parse_commit(p); | |
8713ab30 | 373 | if (!(p->object.flags & SEEN)) |
47e44ed1 | 374 | commit_list_insert_by_date(p, &list); |
8713ab30 | 375 | p->object.flags |= c->object.flags; |
dccd0c2a | 376 | parents = parents->next; |
e00dd1e9 MC |
377 | |
378 | if (first_parent) | |
379 | break; | |
80dbae03 SP |
380 | } |
381 | } | |
382 | ||
da2478db | 383 | if (!match_cnt) { |
f2fd0760 | 384 | struct object_id *oid = &cmit->object.oid; |
da2478db | 385 | if (always) { |
f2fd0760 | 386 | printf("%s", find_unique_abbrev(oid->hash, abbrev)); |
b0176ce6 SB |
387 | if (suffix) |
388 | printf("%s", suffix); | |
9f67d2e8 | 389 | printf("\n"); |
da2478db JH |
390 | return; |
391 | } | |
4d23660e | 392 | if (unannotated_cnt) |
e41f1cb3 ÆAB |
393 | die(_("No annotated tags can describe '%s'.\n" |
394 | "However, there were unannotated tags: try --tags."), | |
f2fd0760 | 395 | oid_to_hex(oid)); |
4d23660e | 396 | else |
e41f1cb3 ÆAB |
397 | die(_("No tags can describe '%s'.\n" |
398 | "Try --always, or create some tags."), | |
f2fd0760 | 399 | oid_to_hex(oid)); |
da2478db | 400 | } |
80dbae03 | 401 | |
9ed0d8d6 | 402 | QSORT(all_matches, match_cnt, compare_pt); |
1b600e65 SP |
403 | |
404 | if (gave_up_on) { | |
47e44ed1 | 405 | commit_list_insert_by_date(gave_up_on, &list); |
1b600e65 SP |
406 | seen_commits--; |
407 | } | |
408 | seen_commits += finish_depth_computation(&list, &all_matches[0]); | |
409 | free_commit_list(list); | |
410 | ||
8713ab30 | 411 | if (debug) { |
646c3bd1 MG |
412 | static int label_width = -1; |
413 | if (label_width < 0) { | |
414 | int i, w; | |
415 | for (i = 0; i < ARRAY_SIZE(prio_names); i++) { | |
416 | w = strlen(_(prio_names[i])); | |
417 | if (label_width < w) | |
418 | label_width = w; | |
419 | } | |
420 | } | |
8713ab30 SP |
421 | for (cur_match = 0; cur_match < match_cnt; cur_match++) { |
422 | struct possible_tag *t = &all_matches[cur_match]; | |
646c3bd1 MG |
423 | fprintf(stderr, " %-*s %8d %s\n", |
424 | label_width, _(prio_names[t->name->prio]), | |
8713ab30 SP |
425 | t->depth, t->name->path); |
426 | } | |
e41f1cb3 | 427 | fprintf(stderr, _("traversed %lu commits\n"), seen_commits); |
8713ab30 SP |
428 | if (gave_up_on) { |
429 | fprintf(stderr, | |
e41f1cb3 ÆAB |
430 | _("more than %i tags found; listed %i most recent\n" |
431 | "gave up search at %s\n"), | |
8713ab30 | 432 | max_candidates, max_candidates, |
f2fd0760 | 433 | oid_to_hex(&gave_up_on->object.oid)); |
8713ab30 | 434 | } |
80dbae03 | 435 | } |
212945d4 SP |
436 | |
437 | display_name(all_matches[0].name); | |
438 | if (abbrev) | |
6439b5d9 | 439 | show_suffix(all_matches[0].depth, &cmit->object.oid); |
b0176ce6 SB |
440 | if (suffix) |
441 | printf("%s", suffix); | |
212945d4 | 442 | printf("\n"); |
80dbae03 | 443 | |
8713ab30 SP |
444 | if (!last_one) |
445 | clear_commit_marks(cmit, -1); | |
908e5310 LT |
446 | } |
447 | ||
9a0eaf83 | 448 | int cmd_describe(int argc, const char **argv, const char *prefix) |
908e5310 | 449 | { |
23615708 | 450 | int contains = 0; |
166185be | 451 | struct option options[] = { |
d5d09d47 SB |
452 | OPT_BOOL(0, "contains", &contains, N_("find the tag that comes after the commit")), |
453 | OPT_BOOL(0, "debug", &debug, N_("debug search strategy on stderr")), | |
454 | OPT_BOOL(0, "all", &all, N_("use any ref")), | |
455 | OPT_BOOL(0, "tags", &tags, N_("use any tag, even unannotated")), | |
456 | OPT_BOOL(0, "long", &longformat, N_("always use long format")), | |
457 | OPT_BOOL(0, "first-parent", &first_parent, N_("only follow first parent")), | |
166185be | 458 | OPT__ABBREV(&abbrev), |
2c33f757 | 459 | OPT_SET_INT(0, "exact-match", &max_candidates, |
bfb0737d | 460 | N_("only output exact matches"), 0), |
166185be | 461 | OPT_INTEGER(0, "candidates", &max_candidates, |
bfb0737d | 462 | N_("consider <n> most recent tags (default: 10)")), |
43f8080e | 463 | OPT_STRING_LIST(0, "match", &patterns, N_("pattern"), |
bfb0737d | 464 | N_("only consider tags matching <pattern>")), |
77d21f29 JK |
465 | OPT_STRING_LIST(0, "exclude", &exclude_patterns, N_("pattern"), |
466 | N_("do not consider tags matching <pattern>")), | |
d5d09d47 SB |
467 | OPT_BOOL(0, "always", &always, |
468 | N_("show abbreviated commit object as fallback")), | |
bfb0737d | 469 | {OPTION_STRING, 0, "dirty", &dirty, N_("mark"), |
d5d09d47 SB |
470 | N_("append <mark> on dirty working tree (default: \"-dirty\")"), |
471 | PARSE_OPT_OPTARG, NULL, (intptr_t) "-dirty"}, | |
b0176ce6 SB |
472 | {OPTION_STRING, 0, "broken", &broken, N_("mark"), |
473 | N_("append <mark> on broken working tree (default: \"-broken\")"), | |
474 | PARSE_OPT_OPTARG, NULL, (intptr_t) "-broken"}, | |
166185be PH |
475 | OPT_END(), |
476 | }; | |
908e5310 | 477 | |
dce96489 | 478 | git_config(git_default_config, NULL); |
37782920 | 479 | argc = parse_options(argc, argv, prefix, options, describe_usage, 0); |
dce96489 LT |
480 | if (abbrev < 0) |
481 | abbrev = DEFAULT_ABBREV; | |
482 | ||
2c33f757 SP |
483 | if (max_candidates < 0) |
484 | max_candidates = 0; | |
166185be PH |
485 | else if (max_candidates > MAX_TAGS) |
486 | max_candidates = MAX_TAGS; | |
4c34a2c5 | 487 | |
8c599c74 | 488 | save_commit_buffer = 0; |
8112894d | 489 | |
518120e3 | 490 | if (longformat && abbrev == 0) |
e41f1cb3 | 491 | die(_("--long is incompatible with --abbrev=0")); |
518120e3 | 492 | |
23615708 | 493 | if (contains) { |
43f8080e | 494 | struct string_list_item *item; |
45bc950b JH |
495 | struct argv_array args; |
496 | ||
497 | argv_array_init(&args); | |
adfc1857 JH |
498 | argv_array_pushl(&args, "name-rev", |
499 | "--peel-tag", "--name-only", "--no-undefined", | |
45bc950b | 500 | NULL); |
da2478db | 501 | if (always) |
45bc950b | 502 | argv_array_push(&args, "--always"); |
30ffa603 | 503 | if (!all) { |
45bc950b | 504 | argv_array_push(&args, "--tags"); |
43f8080e JK |
505 | for_each_string_list_item(item, &patterns) |
506 | argv_array_pushf(&args, "--refs=refs/tags/%s", item->string); | |
77d21f29 JK |
507 | for_each_string_list_item(item, &exclude_patterns) |
508 | argv_array_pushf(&args, "--exclude=refs/tags/%s", item->string); | |
45bc950b | 509 | } |
2bd07065 SG |
510 | if (argc) |
511 | argv_array_pushv(&args, argv); | |
512 | else | |
513 | argv_array_push(&args, "HEAD"); | |
45bc950b | 514 | return cmd_name_rev(args.argc, args.argv, prefix); |
23615708 SP |
515 | } |
516 | ||
0068cede | 517 | hashmap_init(&names, commit_name_cmp, NULL, 0); |
99a2cfbf | 518 | for_each_rawref(get_name, NULL); |
8b604d19 | 519 | if (!hashmap_get_size(&names) && !always) |
e41f1cb3 | 520 | die(_("No names found, cannot describe anything.")); |
fb423da0 | 521 | |
166185be | 522 | if (argc == 0) { |
b0176ce6 SB |
523 | if (broken) { |
524 | struct child_process cp = CHILD_PROCESS_INIT; | |
525 | argv_array_pushv(&cp.args, diff_index_args); | |
526 | cp.git_cmd = 1; | |
527 | cp.no_stdin = 1; | |
528 | cp.no_stdout = 1; | |
529 | ||
530 | if (!dirty) | |
531 | dirty = "-dirty"; | |
532 | ||
533 | switch (run_command(&cp)) { | |
534 | case 0: | |
535 | suffix = NULL; | |
536 | break; | |
537 | case 1: | |
538 | suffix = dirty; | |
539 | break; | |
540 | default: | |
541 | /* diff-index aborted abnormally */ | |
542 | suffix = broken; | |
543 | } | |
544 | } else if (dirty) { | |
bb571486 AC |
545 | static struct lock_file index_lock; |
546 | int fd; | |
547 | ||
548 | read_cache_preload(NULL); | |
549 | refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, | |
550 | NULL, NULL, NULL); | |
551 | fd = hold_locked_index(&index_lock, 0); | |
552 | if (0 <= fd) | |
553 | update_index_if_able(&the_index, &index_lock); | |
554 | ||
555 | if (!cmd_diff_index(ARRAY_SIZE(diff_index_args) - 1, | |
556 | diff_index_args, prefix)) | |
b0176ce6 SB |
557 | suffix = NULL; |
558 | else | |
559 | suffix = dirty; | |
bb571486 | 560 | } |
fec9ebf1 | 561 | describe("HEAD", 1); |
9f67d2e8 | 562 | } else if (dirty) { |
a8a5406a | 563 | die(_("--dirty is incompatible with commit-ishes")); |
b0176ce6 SB |
564 | } else if (broken) { |
565 | die(_("--broken is incompatible with commit-ishes")); | |
166185be | 566 | } else { |
c4472643 | 567 | while (argc-- > 0) |
166185be | 568 | describe(*argv++, argc == 0); |
166185be | 569 | } |
908e5310 LT |
570 | return 0; |
571 | } |