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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 | |
29d8a834 KB |
57 | static int commit_name_cmp(const struct commit_name *cn1, |
58 | const struct commit_name *cn2, const void *peeled) | |
59 | { | |
6439b5d9 | 60 | return oidcmp(&cn1->peeled, peeled ? peeled : &cn2->peeled); |
29d8a834 KB |
61 | } |
62 | ||
6439b5d9 | 63 | static inline struct commit_name *find_commit_name(const struct object_id *peeled) |
3cfa4db3 | 64 | { |
6439b5d9 | 65 | return hashmap_get_from_hash(&names, sha1hash(peeled->hash), peeled->hash); |
d1645d02 AK |
66 | } |
67 | ||
03e8b541 SP |
68 | static int replace_name(struct commit_name *e, |
69 | int prio, | |
6439b5d9 | 70 | const struct object_id *oid, |
03e8b541 SP |
71 | struct tag **tag) |
72 | { | |
73 | if (!e || e->prio < prio) | |
74 | return 1; | |
75 | ||
76 | if (e->prio == 2 && prio == 2) { | |
77 | /* Multiple annotated tags point to the same commit. | |
78 | * Select one to keep based upon their tagger date. | |
79 | */ | |
80 | struct tag *t; | |
81 | ||
82 | if (!e->tag) { | |
6439b5d9 | 83 | t = lookup_tag(e->oid.hash); |
03e8b541 SP |
84 | if (!t || parse_tag(t)) |
85 | return 1; | |
86 | e->tag = t; | |
87 | } | |
88 | ||
6439b5d9 | 89 | t = lookup_tag(oid->hash); |
03e8b541 SP |
90 | if (!t || parse_tag(t)) |
91 | return 0; | |
92 | *tag = t; | |
93 | ||
94 | if (e->tag->date < t->date) | |
95 | return 1; | |
96 | } | |
97 | ||
98 | return 0; | |
99 | } | |
100 | ||
64deb858 | 101 | static void add_to_known_names(const char *path, |
6439b5d9 | 102 | const struct object_id *peeled, |
212945d4 | 103 | int prio, |
6439b5d9 | 104 | const struct object_id *oid) |
908e5310 | 105 | { |
3cfa4db3 | 106 | struct commit_name *e = find_commit_name(peeled); |
03e8b541 | 107 | struct tag *tag = NULL; |
6439b5d9 | 108 | if (replace_name(e, prio, oid, &tag)) { |
1e1ade18 AK |
109 | if (!e) { |
110 | e = xmalloc(sizeof(struct commit_name)); | |
6439b5d9 | 111 | oidcpy(&e->peeled, peeled); |
112 | hashmap_entry_init(e, sha1hash(peeled->hash)); | |
29d8a834 | 113 | hashmap_add(&names, e); |
219a0f33 | 114 | e->path = NULL; |
1e1ade18 | 115 | } |
03e8b541 | 116 | e->tag = tag; |
e7eb5034 | 117 | e->prio = prio; |
03e8b541 | 118 | e->name_checked = 0; |
6439b5d9 | 119 | oidcpy(&e->oid, oid); |
219a0f33 MH |
120 | free(e->path); |
121 | e->path = xstrdup(path); | |
908e5310 | 122 | } |
908e5310 LT |
123 | } |
124 | ||
99a2cfbf | 125 | static int get_name(const char *path, const struct object_id *oid, int flag, void *cb_data) |
908e5310 | 126 | { |
59556548 | 127 | int is_tag = starts_with(path, "refs/tags/"); |
99a2cfbf | 128 | struct object_id peeled; |
46e1d6eb | 129 | int is_annotated, prio; |
feededd0 | 130 | |
46e1d6eb JH |
131 | /* Reject anything outside refs/tags/ unless --all */ |
132 | if (!all && !is_tag) | |
8a5a1884 SP |
133 | return 0; |
134 | ||
77d21f29 JK |
135 | /* |
136 | * If we're given exclude patterns, first exclude any tag which match | |
137 | * any of the exclude pattern. | |
138 | */ | |
139 | if (exclude_patterns.nr) { | |
140 | struct string_list_item *item; | |
141 | ||
142 | if (!is_tag) | |
143 | return 0; | |
144 | ||
145 | for_each_string_list_item(item, &exclude_patterns) { | |
146 | if (!wildmatch(item->string, path + 10, 0, NULL)) | |
147 | return 0; | |
148 | } | |
149 | } | |
150 | ||
43f8080e JK |
151 | /* |
152 | * If we're given patterns, accept only tags which match at least one | |
153 | * pattern. | |
154 | */ | |
155 | if (patterns.nr) { | |
156 | struct string_list_item *item; | |
157 | ||
158 | if (!is_tag) | |
159 | return 0; | |
160 | ||
161 | for_each_string_list_item(item, &patterns) { | |
162 | if (!wildmatch(item->string, path + 10, 0, NULL)) | |
163 | break; | |
164 | ||
165 | /* If we get here, no pattern matched. */ | |
166 | return 0; | |
167 | } | |
168 | } | |
46e1d6eb JH |
169 | |
170 | /* Is it annotated? */ | |
99a2cfbf MH |
171 | if (!peel_ref(path, peeled.hash)) { |
172 | is_annotated = !!oidcmp(oid, &peeled); | |
feededd0 | 173 | } else { |
99a2cfbf | 174 | oidcpy(&peeled, oid); |
46e1d6eb | 175 | is_annotated = 0; |
feededd0 | 176 | } |
64deb858 | 177 | |
46e1d6eb JH |
178 | /* |
179 | * By default, we only use annotated tags, but with --tags | |
180 | * we fall back to lightweight ones (even without --tags, | |
181 | * we still remember lightweight ones, only to give hints | |
182 | * in an error message). --all allows any refs to be used. | |
2d9e7c9f | 183 | */ |
46e1d6eb JH |
184 | if (is_annotated) |
185 | prio = 2; | |
186 | else if (is_tag) | |
187 | prio = 1; | |
64deb858 JH |
188 | else |
189 | prio = 0; | |
190 | ||
6439b5d9 | 191 | add_to_known_names(all ? path + 5 : path + 10, &peeled, prio, oid); |
908e5310 LT |
192 | return 0; |
193 | } | |
194 | ||
80dbae03 | 195 | struct possible_tag { |
80dbae03 | 196 | struct commit_name *name; |
cf69fd49 SP |
197 | int depth; |
198 | int found_order; | |
8713ab30 | 199 | unsigned flag_within; |
80dbae03 SP |
200 | }; |
201 | ||
cf69fd49 SP |
202 | static int compare_pt(const void *a_, const void *b_) |
203 | { | |
204 | struct possible_tag *a = (struct possible_tag *)a_; | |
205 | struct possible_tag *b = (struct possible_tag *)b_; | |
cf69fd49 SP |
206 | if (a->depth != b->depth) |
207 | return a->depth - b->depth; | |
208 | if (a->found_order != b->found_order) | |
209 | return a->found_order - b->found_order; | |
210 | return 0; | |
211 | } | |
212 | ||
1b600e65 SP |
213 | static unsigned long finish_depth_computation( |
214 | struct commit_list **list, | |
215 | struct possible_tag *best) | |
216 | { | |
217 | unsigned long seen_commits = 0; | |
218 | while (*list) { | |
219 | struct commit *c = pop_commit(list); | |
220 | struct commit_list *parents = c->parents; | |
221 | seen_commits++; | |
222 | if (c->object.flags & best->flag_within) { | |
223 | struct commit_list *a = *list; | |
224 | while (a) { | |
225 | struct commit *i = a->item; | |
226 | if (!(i->object.flags & best->flag_within)) | |
227 | break; | |
228 | a = a->next; | |
229 | } | |
230 | if (!a) | |
231 | break; | |
232 | } else | |
233 | best->depth++; | |
234 | while (parents) { | |
235 | struct commit *p = parents->item; | |
236 | parse_commit(p); | |
237 | if (!(p->object.flags & SEEN)) | |
47e44ed1 | 238 | commit_list_insert_by_date(p, list); |
1b600e65 SP |
239 | p->object.flags |= c->object.flags; |
240 | parents = parents->next; | |
241 | } | |
242 | } | |
243 | return seen_commits; | |
244 | } | |
245 | ||
212945d4 SP |
246 | static void display_name(struct commit_name *n) |
247 | { | |
248 | if (n->prio == 2 && !n->tag) { | |
6439b5d9 | 249 | n->tag = lookup_tag(n->oid.hash); |
03e8b541 | 250 | if (!n->tag || parse_tag(n->tag)) |
e41f1cb3 | 251 | die(_("annotated tag %s not available"), n->path); |
03e8b541 SP |
252 | } |
253 | if (n->tag && !n->name_checked) { | |
254 | if (!n->tag->tag) | |
e41f1cb3 | 255 | die(_("annotated tag %s has no embedded name"), n->path); |
81dc223d | 256 | if (strcmp(n->tag->tag, all ? n->path + 5 : n->path)) |
e41f1cb3 | 257 | warning(_("tag '%s' is really '%s' here"), n->tag->tag, n->path); |
03e8b541 | 258 | n->name_checked = 1; |
212945d4 SP |
259 | } |
260 | ||
261 | if (n->tag) | |
262 | printf("%s", n->tag->tag); | |
263 | else | |
264 | printf("%s", n->path); | |
870cf7d6 JH |
265 | } |
266 | ||
6439b5d9 | 267 | static void show_suffix(int depth, const struct object_id *oid) |
870cf7d6 | 268 | { |
6439b5d9 | 269 | printf("-%d-g%s", depth, find_unique_abbrev(oid->hash, abbrev)); |
212945d4 SP |
270 | } |
271 | ||
554fe20d | 272 | static void describe(const char *arg, int last_one) |
908e5310 | 273 | { |
6439b5d9 | 274 | struct object_id oid; |
8713ab30 | 275 | struct commit *cmit, *gave_up_on = NULL; |
908e5310 | 276 | struct commit_list *list; |
908e5310 | 277 | struct commit_name *n; |
cf69fd49 | 278 | struct possible_tag all_matches[MAX_TAGS]; |
8713ab30 SP |
279 | unsigned int match_cnt = 0, annotated_cnt = 0, cur_match; |
280 | unsigned long seen_commits = 0; | |
4d23660e | 281 | unsigned int unannotated_cnt = 0; |
908e5310 | 282 | |
6439b5d9 | 283 | if (get_oid(arg, &oid)) |
e41f1cb3 | 284 | die(_("Not a valid object name %s"), arg); |
6439b5d9 | 285 | cmit = lookup_commit_reference(oid.hash); |
4c34a2c5 | 286 | if (!cmit) |
e41f1cb3 | 287 | die(_("%s is not a valid '%s' object"), arg, commit_type); |
4c34a2c5 | 288 | |
6439b5d9 | 289 | n = find_commit_name(&cmit->object.oid); |
7a0d61bb | 290 | if (n && (tags || all || n->prio == 2)) { |
870cf7d6 JH |
291 | /* |
292 | * Exact match to an existing ref. | |
293 | */ | |
212945d4 | 294 | display_name(n); |
870cf7d6 | 295 | if (longformat) |
6439b5d9 | 296 | show_suffix(0, n->tag ? &n->tag->tagged->oid : &oid); |
b0176ce6 SB |
297 | if (suffix) |
298 | printf("%s", suffix); | |
212945d4 | 299 | printf("\n"); |
908e5310 LT |
300 | return; |
301 | } | |
302 | ||
2c33f757 | 303 | if (!max_candidates) |
f2fd0760 | 304 | die(_("no tag exactly matches '%s'"), oid_to_hex(&cmit->object.oid)); |
8713ab30 | 305 | if (debug) |
e41f1cb3 | 306 | fprintf(stderr, _("searching to describe %s\n"), arg); |
8713ab30 | 307 | |
d1645d02 | 308 | if (!have_util) { |
29d8a834 KB |
309 | struct hashmap_iter iter; |
310 | struct commit *c; | |
311 | struct commit_name *n = hashmap_iter_first(&names, &iter); | |
312 | for (; n; n = hashmap_iter_next(&iter)) { | |
6439b5d9 | 313 | c = lookup_commit_reference_gently(n->peeled.hash, 1); |
29d8a834 KB |
314 | if (c) |
315 | c->util = n; | |
316 | } | |
d1645d02 AK |
317 | have_util = 1; |
318 | } | |
319 | ||
908e5310 | 320 | list = NULL; |
8713ab30 | 321 | cmit->object.flags = SEEN; |
908e5310 LT |
322 | commit_list_insert(cmit, &list); |
323 | while (list) { | |
80dbae03 | 324 | struct commit *c = pop_commit(&list); |
dccd0c2a | 325 | struct commit_list *parents = c->parents; |
8713ab30 | 326 | seen_commits++; |
e7eb5034 | 327 | n = c->util; |
908e5310 | 328 | if (n) { |
4d23660e TR |
329 | if (!tags && !all && n->prio < 2) { |
330 | unannotated_cnt++; | |
331 | } else if (match_cnt < max_candidates) { | |
8713ab30 SP |
332 | struct possible_tag *t = &all_matches[match_cnt++]; |
333 | t->name = n; | |
334 | t->depth = seen_commits - 1; | |
335 | t->flag_within = 1u << match_cnt; | |
8a8169c0 | 336 | t->found_order = match_cnt; |
8713ab30 SP |
337 | c->object.flags |= t->flag_within; |
338 | if (n->prio == 2) | |
339 | annotated_cnt++; | |
340 | } | |
341 | else { | |
342 | gave_up_on = c; | |
343 | break; | |
344 | } | |
345 | } | |
346 | for (cur_match = 0; cur_match < match_cnt; cur_match++) { | |
347 | struct possible_tag *t = &all_matches[cur_match]; | |
348 | if (!(c->object.flags & t->flag_within)) | |
349 | t->depth++; | |
350 | } | |
351 | if (annotated_cnt && !list) { | |
352 | if (debug) | |
e41f1cb3 | 353 | fprintf(stderr, _("finished search at %s\n"), |
f2fd0760 | 354 | oid_to_hex(&c->object.oid)); |
8713ab30 | 355 | break; |
dccd0c2a SP |
356 | } |
357 | while (parents) { | |
358 | struct commit *p = parents->item; | |
359 | parse_commit(p); | |
8713ab30 | 360 | if (!(p->object.flags & SEEN)) |
47e44ed1 | 361 | commit_list_insert_by_date(p, &list); |
8713ab30 | 362 | p->object.flags |= c->object.flags; |
dccd0c2a | 363 | parents = parents->next; |
e00dd1e9 MC |
364 | |
365 | if (first_parent) | |
366 | break; | |
80dbae03 SP |
367 | } |
368 | } | |
369 | ||
da2478db | 370 | if (!match_cnt) { |
f2fd0760 | 371 | struct object_id *oid = &cmit->object.oid; |
da2478db | 372 | if (always) { |
f2fd0760 | 373 | printf("%s", find_unique_abbrev(oid->hash, abbrev)); |
b0176ce6 SB |
374 | if (suffix) |
375 | printf("%s", suffix); | |
9f67d2e8 | 376 | printf("\n"); |
da2478db JH |
377 | return; |
378 | } | |
4d23660e | 379 | if (unannotated_cnt) |
e41f1cb3 ÆAB |
380 | die(_("No annotated tags can describe '%s'.\n" |
381 | "However, there were unannotated tags: try --tags."), | |
f2fd0760 | 382 | oid_to_hex(oid)); |
4d23660e | 383 | else |
e41f1cb3 ÆAB |
384 | die(_("No tags can describe '%s'.\n" |
385 | "Try --always, or create some tags."), | |
f2fd0760 | 386 | oid_to_hex(oid)); |
da2478db | 387 | } |
80dbae03 | 388 | |
9ed0d8d6 | 389 | QSORT(all_matches, match_cnt, compare_pt); |
1b600e65 SP |
390 | |
391 | if (gave_up_on) { | |
47e44ed1 | 392 | commit_list_insert_by_date(gave_up_on, &list); |
1b600e65 SP |
393 | seen_commits--; |
394 | } | |
395 | seen_commits += finish_depth_computation(&list, &all_matches[0]); | |
396 | free_commit_list(list); | |
397 | ||
8713ab30 | 398 | if (debug) { |
646c3bd1 MG |
399 | static int label_width = -1; |
400 | if (label_width < 0) { | |
401 | int i, w; | |
402 | for (i = 0; i < ARRAY_SIZE(prio_names); i++) { | |
403 | w = strlen(_(prio_names[i])); | |
404 | if (label_width < w) | |
405 | label_width = w; | |
406 | } | |
407 | } | |
8713ab30 SP |
408 | for (cur_match = 0; cur_match < match_cnt; cur_match++) { |
409 | struct possible_tag *t = &all_matches[cur_match]; | |
646c3bd1 MG |
410 | fprintf(stderr, " %-*s %8d %s\n", |
411 | label_width, _(prio_names[t->name->prio]), | |
8713ab30 SP |
412 | t->depth, t->name->path); |
413 | } | |
e41f1cb3 | 414 | fprintf(stderr, _("traversed %lu commits\n"), seen_commits); |
8713ab30 SP |
415 | if (gave_up_on) { |
416 | fprintf(stderr, | |
e41f1cb3 ÆAB |
417 | _("more than %i tags found; listed %i most recent\n" |
418 | "gave up search at %s\n"), | |
8713ab30 | 419 | max_candidates, max_candidates, |
f2fd0760 | 420 | oid_to_hex(&gave_up_on->object.oid)); |
8713ab30 | 421 | } |
80dbae03 | 422 | } |
212945d4 SP |
423 | |
424 | display_name(all_matches[0].name); | |
425 | if (abbrev) | |
6439b5d9 | 426 | show_suffix(all_matches[0].depth, &cmit->object.oid); |
b0176ce6 SB |
427 | if (suffix) |
428 | printf("%s", suffix); | |
212945d4 | 429 | printf("\n"); |
80dbae03 | 430 | |
8713ab30 SP |
431 | if (!last_one) |
432 | clear_commit_marks(cmit, -1); | |
908e5310 LT |
433 | } |
434 | ||
9a0eaf83 | 435 | int cmd_describe(int argc, const char **argv, const char *prefix) |
908e5310 | 436 | { |
23615708 | 437 | int contains = 0; |
166185be | 438 | struct option options[] = { |
d5d09d47 SB |
439 | OPT_BOOL(0, "contains", &contains, N_("find the tag that comes after the commit")), |
440 | OPT_BOOL(0, "debug", &debug, N_("debug search strategy on stderr")), | |
441 | OPT_BOOL(0, "all", &all, N_("use any ref")), | |
442 | OPT_BOOL(0, "tags", &tags, N_("use any tag, even unannotated")), | |
443 | OPT_BOOL(0, "long", &longformat, N_("always use long format")), | |
444 | OPT_BOOL(0, "first-parent", &first_parent, N_("only follow first parent")), | |
166185be | 445 | OPT__ABBREV(&abbrev), |
2c33f757 | 446 | OPT_SET_INT(0, "exact-match", &max_candidates, |
bfb0737d | 447 | N_("only output exact matches"), 0), |
166185be | 448 | OPT_INTEGER(0, "candidates", &max_candidates, |
bfb0737d | 449 | N_("consider <n> most recent tags (default: 10)")), |
43f8080e | 450 | OPT_STRING_LIST(0, "match", &patterns, N_("pattern"), |
bfb0737d | 451 | N_("only consider tags matching <pattern>")), |
77d21f29 JK |
452 | OPT_STRING_LIST(0, "exclude", &exclude_patterns, N_("pattern"), |
453 | N_("do not consider tags matching <pattern>")), | |
d5d09d47 SB |
454 | OPT_BOOL(0, "always", &always, |
455 | N_("show abbreviated commit object as fallback")), | |
bfb0737d | 456 | {OPTION_STRING, 0, "dirty", &dirty, N_("mark"), |
d5d09d47 SB |
457 | N_("append <mark> on dirty working tree (default: \"-dirty\")"), |
458 | PARSE_OPT_OPTARG, NULL, (intptr_t) "-dirty"}, | |
b0176ce6 SB |
459 | {OPTION_STRING, 0, "broken", &broken, N_("mark"), |
460 | N_("append <mark> on broken working tree (default: \"-broken\")"), | |
461 | PARSE_OPT_OPTARG, NULL, (intptr_t) "-broken"}, | |
166185be PH |
462 | OPT_END(), |
463 | }; | |
908e5310 | 464 | |
dce96489 | 465 | git_config(git_default_config, NULL); |
37782920 | 466 | argc = parse_options(argc, argv, prefix, options, describe_usage, 0); |
dce96489 LT |
467 | if (abbrev < 0) |
468 | abbrev = DEFAULT_ABBREV; | |
469 | ||
2c33f757 SP |
470 | if (max_candidates < 0) |
471 | max_candidates = 0; | |
166185be PH |
472 | else if (max_candidates > MAX_TAGS) |
473 | max_candidates = MAX_TAGS; | |
4c34a2c5 | 474 | |
8c599c74 | 475 | save_commit_buffer = 0; |
8112894d | 476 | |
518120e3 | 477 | if (longformat && abbrev == 0) |
e41f1cb3 | 478 | die(_("--long is incompatible with --abbrev=0")); |
518120e3 | 479 | |
23615708 | 480 | if (contains) { |
43f8080e | 481 | struct string_list_item *item; |
45bc950b JH |
482 | struct argv_array args; |
483 | ||
484 | argv_array_init(&args); | |
adfc1857 JH |
485 | argv_array_pushl(&args, "name-rev", |
486 | "--peel-tag", "--name-only", "--no-undefined", | |
45bc950b | 487 | NULL); |
da2478db | 488 | if (always) |
45bc950b | 489 | argv_array_push(&args, "--always"); |
30ffa603 | 490 | if (!all) { |
45bc950b | 491 | argv_array_push(&args, "--tags"); |
43f8080e JK |
492 | for_each_string_list_item(item, &patterns) |
493 | argv_array_pushf(&args, "--refs=refs/tags/%s", item->string); | |
77d21f29 JK |
494 | for_each_string_list_item(item, &exclude_patterns) |
495 | argv_array_pushf(&args, "--exclude=refs/tags/%s", item->string); | |
45bc950b | 496 | } |
2bd07065 SG |
497 | if (argc) |
498 | argv_array_pushv(&args, argv); | |
499 | else | |
500 | argv_array_push(&args, "HEAD"); | |
45bc950b | 501 | return cmd_name_rev(args.argc, args.argv, prefix); |
23615708 SP |
502 | } |
503 | ||
29d8a834 | 504 | hashmap_init(&names, (hashmap_cmp_fn) commit_name_cmp, 0); |
99a2cfbf | 505 | for_each_rawref(get_name, NULL); |
29d8a834 | 506 | if (!names.size && !always) |
e41f1cb3 | 507 | die(_("No names found, cannot describe anything.")); |
fb423da0 | 508 | |
166185be | 509 | if (argc == 0) { |
b0176ce6 SB |
510 | if (broken) { |
511 | struct child_process cp = CHILD_PROCESS_INIT; | |
512 | argv_array_pushv(&cp.args, diff_index_args); | |
513 | cp.git_cmd = 1; | |
514 | cp.no_stdin = 1; | |
515 | cp.no_stdout = 1; | |
516 | ||
517 | if (!dirty) | |
518 | dirty = "-dirty"; | |
519 | ||
520 | switch (run_command(&cp)) { | |
521 | case 0: | |
522 | suffix = NULL; | |
523 | break; | |
524 | case 1: | |
525 | suffix = dirty; | |
526 | break; | |
527 | default: | |
528 | /* diff-index aborted abnormally */ | |
529 | suffix = broken; | |
530 | } | |
531 | } else if (dirty) { | |
bb571486 AC |
532 | static struct lock_file index_lock; |
533 | int fd; | |
534 | ||
535 | read_cache_preload(NULL); | |
536 | refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, | |
537 | NULL, NULL, NULL); | |
538 | fd = hold_locked_index(&index_lock, 0); | |
539 | if (0 <= fd) | |
540 | update_index_if_able(&the_index, &index_lock); | |
541 | ||
542 | if (!cmd_diff_index(ARRAY_SIZE(diff_index_args) - 1, | |
543 | diff_index_args, prefix)) | |
b0176ce6 SB |
544 | suffix = NULL; |
545 | else | |
546 | suffix = dirty; | |
bb571486 | 547 | } |
fec9ebf1 | 548 | describe("HEAD", 1); |
9f67d2e8 | 549 | } else if (dirty) { |
a8a5406a | 550 | die(_("--dirty is incompatible with commit-ishes")); |
b0176ce6 SB |
551 | } else if (broken) { |
552 | die(_("--broken is incompatible with commit-ishes")); | |
166185be | 553 | } else { |
c4472643 | 554 | while (argc-- > 0) |
166185be | 555 | describe(*argv++, argc == 0); |
166185be | 556 | } |
908e5310 LT |
557 | return 0; |
558 | } |