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Commit | Line | Data |
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62e09ce9 CR |
1 | /* |
2 | * Builtin "git tag" | |
3 | * | |
4 | * Copyright (c) 2007 Kristian Høgsberg <krh@redhat.com>, | |
5 | * Carlos Rica <jasampler@gmail.com> | |
6 | * Based on git-tag.sh and mktag.c by Linus Torvalds. | |
7 | */ | |
8 | ||
9 | #include "cache.h" | |
10 | #include "builtin.h" | |
11 | #include "refs.h" | |
12 | #include "tag.h" | |
13 | #include "run-command.h" | |
39686585 | 14 | #include "parse-options.h" |
ffc4b801 JK |
15 | #include "diff.h" |
16 | #include "revision.h" | |
39686585 CR |
17 | |
18 | static const char * const git_tag_usage[] = { | |
1b1dd23f SB |
19 | "git tag [-a|-s|-u <key-id>] [-f] [-m <msg>|-F <file>] <tagname> [<head>]", |
20 | "git tag -d <tagname>...", | |
588d0e83 | 21 | "git tag -l [-n[<num>]] [<pattern>...]", |
1b1dd23f | 22 | "git tag -v <tagname>...", |
39686585 CR |
23 | NULL |
24 | }; | |
62e09ce9 CR |
25 | |
26 | static char signingkey[1000]; | |
27 | ||
62e09ce9 | 28 | struct tag_filter { |
588d0e83 | 29 | const char **patterns; |
62e09ce9 | 30 | int lines; |
32c35cfb | 31 | struct commit_list *with_commit; |
62e09ce9 CR |
32 | }; |
33 | ||
588d0e83 JK |
34 | static int match_pattern(const char **patterns, const char *ref) |
35 | { | |
36 | /* no pattern means match everything */ | |
37 | if (!*patterns) | |
38 | return 1; | |
39 | for (; *patterns; patterns++) | |
40 | if (!fnmatch(*patterns, ref, 0)) | |
41 | return 1; | |
42 | return 0; | |
43 | } | |
44 | ||
ffc4b801 JK |
45 | static int in_commit_list(const struct commit_list *want, struct commit *c) |
46 | { | |
47 | for (; want; want = want->next) | |
48 | if (!hashcmp(want->item->object.sha1, c->object.sha1)) | |
49 | return 1; | |
50 | return 0; | |
51 | } | |
52 | ||
53 | static int contains_recurse(struct commit *candidate, | |
c6d72c49 | 54 | const struct commit_list *want) |
ffc4b801 JK |
55 | { |
56 | struct commit_list *p; | |
57 | ||
58 | /* was it previously marked as containing a want commit? */ | |
59 | if (candidate->object.flags & TMP_MARK) | |
60 | return 1; | |
61 | /* or marked as not possibly containing a want commit? */ | |
62 | if (candidate->object.flags & UNINTERESTING) | |
63 | return 0; | |
64 | /* or are we it? */ | |
65 | if (in_commit_list(want, candidate)) | |
66 | return 1; | |
67 | ||
68 | if (parse_commit(candidate) < 0) | |
69 | return 0; | |
70 | ||
71 | /* Otherwise recurse and mark ourselves for future traversals. */ | |
72 | for (p = candidate->parents; p; p = p->next) { | |
c6d72c49 | 73 | if (contains_recurse(p->item, want)) { |
ffc4b801 JK |
74 | candidate->object.flags |= TMP_MARK; |
75 | return 1; | |
76 | } | |
77 | } | |
78 | candidate->object.flags |= UNINTERESTING; | |
79 | return 0; | |
80 | } | |
81 | ||
82 | static int contains(struct commit *candidate, const struct commit_list *want) | |
83 | { | |
c6d72c49 | 84 | return contains_recurse(candidate, want); |
ffc4b801 JK |
85 | } |
86 | ||
62e09ce9 CR |
87 | static int show_reference(const char *refname, const unsigned char *sha1, |
88 | int flag, void *cb_data) | |
89 | { | |
90 | struct tag_filter *filter = cb_data; | |
91 | ||
588d0e83 | 92 | if (match_pattern(filter->patterns, refname)) { |
62e09ce9 CR |
93 | int i; |
94 | unsigned long size; | |
95 | enum object_type type; | |
96 | char *buf, *sp, *eol; | |
97 | size_t len; | |
98 | ||
32c35cfb JG |
99 | if (filter->with_commit) { |
100 | struct commit *commit; | |
101 | ||
102 | commit = lookup_commit_reference_gently(sha1, 1); | |
103 | if (!commit) | |
104 | return 0; | |
ffc4b801 | 105 | if (!contains(commit, filter->with_commit)) |
32c35cfb JG |
106 | return 0; |
107 | } | |
108 | ||
62e09ce9 CR |
109 | if (!filter->lines) { |
110 | printf("%s\n", refname); | |
111 | return 0; | |
112 | } | |
113 | printf("%-15s ", refname); | |
114 | ||
e1f14cce MH |
115 | buf = read_sha1_file(sha1, &type, &size); |
116 | if (!buf || !size) | |
62e09ce9 | 117 | return 0; |
e1f14cce MH |
118 | |
119 | /* skip header */ | |
120 | sp = strstr(buf, "\n\n"); | |
121 | if (!sp) { | |
e317cfaf CR |
122 | free(buf); |
123 | return 0; | |
124 | } | |
62e09ce9 | 125 | /* only take up to "lines" lines, and strip the signature */ |
81536b2d | 126 | size = parse_signature(buf, size); |
e317cfaf | 127 | for (i = 0, sp += 2; |
81536b2d | 128 | i < filter->lines && sp < buf + size; |
62e09ce9 CR |
129 | i++) { |
130 | if (i) | |
131 | printf("\n "); | |
132 | eol = memchr(sp, '\n', size - (sp - buf)); | |
133 | len = eol ? eol - sp : size - (sp - buf); | |
134 | fwrite(sp, len, 1, stdout); | |
135 | if (!eol) | |
136 | break; | |
137 | sp = eol + 1; | |
138 | } | |
139 | putchar('\n'); | |
140 | free(buf); | |
141 | } | |
142 | ||
143 | return 0; | |
144 | } | |
145 | ||
588d0e83 | 146 | static int list_tags(const char **patterns, int lines, |
32c35cfb | 147 | struct commit_list *with_commit) |
62e09ce9 CR |
148 | { |
149 | struct tag_filter filter; | |
62e09ce9 | 150 | |
588d0e83 | 151 | filter.patterns = patterns; |
62e09ce9 | 152 | filter.lines = lines; |
32c35cfb | 153 | filter.with_commit = with_commit; |
62e09ce9 CR |
154 | |
155 | for_each_tag_ref(show_reference, (void *) &filter); | |
156 | ||
62e09ce9 CR |
157 | return 0; |
158 | } | |
159 | ||
e317cfaf | 160 | typedef int (*each_tag_name_fn)(const char *name, const char *ref, |
62e09ce9 CR |
161 | const unsigned char *sha1); |
162 | ||
e317cfaf | 163 | static int for_each_tag_name(const char **argv, each_tag_name_fn fn) |
62e09ce9 CR |
164 | { |
165 | const char **p; | |
166 | char ref[PATH_MAX]; | |
167 | int had_error = 0; | |
168 | unsigned char sha1[20]; | |
169 | ||
170 | for (p = argv; *p; p++) { | |
171 | if (snprintf(ref, sizeof(ref), "refs/tags/%s", *p) | |
172 | >= sizeof(ref)) { | |
d08ebf99 | 173 | error(_("tag name too long: %.*s..."), 50, *p); |
62e09ce9 CR |
174 | had_error = 1; |
175 | continue; | |
176 | } | |
177 | if (!resolve_ref(ref, sha1, 1, NULL)) { | |
d08ebf99 | 178 | error(_("tag '%s' not found."), *p); |
62e09ce9 CR |
179 | had_error = 1; |
180 | continue; | |
181 | } | |
182 | if (fn(*p, ref, sha1)) | |
183 | had_error = 1; | |
184 | } | |
185 | return had_error; | |
186 | } | |
187 | ||
188 | static int delete_tag(const char *name, const char *ref, | |
189 | const unsigned char *sha1) | |
190 | { | |
eca35a25 | 191 | if (delete_ref(ref, sha1, 0)) |
62e09ce9 | 192 | return 1; |
d08ebf99 | 193 | printf(_("Deleted tag '%s' (was %s)\n"), name, find_unique_abbrev(sha1, DEFAULT_ABBREV)); |
62e09ce9 CR |
194 | return 0; |
195 | } | |
196 | ||
197 | static int verify_tag(const char *name, const char *ref, | |
198 | const unsigned char *sha1) | |
199 | { | |
a6ccbbdb | 200 | const char *argv_verify_tag[] = {"verify-tag", |
62e09ce9 CR |
201 | "-v", "SHA1_HEX", NULL}; |
202 | argv_verify_tag[2] = sha1_to_hex(sha1); | |
203 | ||
a6ccbbdb | 204 | if (run_command_v_opt(argv_verify_tag, RUN_GIT_CMD)) |
d08ebf99 | 205 | return error(_("could not verify the tag '%s'"), name); |
62e09ce9 CR |
206 | return 0; |
207 | } | |
208 | ||
fd17f5b5 | 209 | static int do_sign(struct strbuf *buffer) |
62e09ce9 CR |
210 | { |
211 | struct child_process gpg; | |
212 | const char *args[4]; | |
213 | char *bracket; | |
214 | int len; | |
c4adea82 | 215 | int i, j; |
62e09ce9 CR |
216 | |
217 | if (!*signingkey) { | |
774751a8 | 218 | if (strlcpy(signingkey, git_committer_info(IDENT_ERROR_ON_NO_NAME), |
e317cfaf | 219 | sizeof(signingkey)) > sizeof(signingkey) - 1) |
d08ebf99 | 220 | return error(_("committer info too long.")); |
62e09ce9 CR |
221 | bracket = strchr(signingkey, '>'); |
222 | if (bracket) | |
223 | bracket[1] = '\0'; | |
224 | } | |
225 | ||
aba91192 CR |
226 | /* When the username signingkey is bad, program could be terminated |
227 | * because gpg exits without reading and then write gets SIGPIPE. */ | |
228 | signal(SIGPIPE, SIG_IGN); | |
229 | ||
62e09ce9 CR |
230 | memset(&gpg, 0, sizeof(gpg)); |
231 | gpg.argv = args; | |
232 | gpg.in = -1; | |
233 | gpg.out = -1; | |
234 | args[0] = "gpg"; | |
235 | args[1] = "-bsau"; | |
236 | args[2] = signingkey; | |
237 | args[3] = NULL; | |
238 | ||
239 | if (start_command(&gpg)) | |
d08ebf99 | 240 | return error(_("could not run gpg.")); |
62e09ce9 | 241 | |
fd17f5b5 | 242 | if (write_in_full(gpg.in, buffer->buf, buffer->len) != buffer->len) { |
aba91192 | 243 | close(gpg.in); |
e72ae288 | 244 | close(gpg.out); |
aba91192 | 245 | finish_command(&gpg); |
d08ebf99 | 246 | return error(_("gpg did not accept the tag data")); |
aba91192 | 247 | } |
62e09ce9 | 248 | close(gpg.in); |
fd17f5b5 | 249 | len = strbuf_read(buffer, gpg.out, 1024); |
e72ae288 | 250 | close(gpg.out); |
62e09ce9 | 251 | |
aba91192 | 252 | if (finish_command(&gpg) || !len || len < 0) |
d08ebf99 | 253 | return error(_("gpg failed to sign the tag")); |
62e09ce9 | 254 | |
c4adea82 JS |
255 | /* Strip CR from the line endings, in case we are on Windows. */ |
256 | for (i = j = 0; i < buffer->len; i++) | |
257 | if (buffer->buf[i] != '\r') { | |
258 | if (i != j) | |
259 | buffer->buf[j] = buffer->buf[i]; | |
260 | j++; | |
261 | } | |
262 | strbuf_setlen(buffer, j); | |
263 | ||
fd17f5b5 | 264 | return 0; |
62e09ce9 CR |
265 | } |
266 | ||
267 | static const char tag_template[] = | |
7fbff25a | 268 | N_("\n" |
62e09ce9 CR |
269 | "#\n" |
270 | "# Write a tag message\n" | |
7fbff25a | 271 | "#\n"); |
62e09ce9 | 272 | |
be15f505 LT |
273 | static void set_signingkey(const char *value) |
274 | { | |
275 | if (strlcpy(signingkey, value, sizeof(signingkey)) >= sizeof(signingkey)) | |
d08ebf99 | 276 | die(_("signing key value too long (%.10s...)"), value); |
be15f505 LT |
277 | } |
278 | ||
ef90d6d4 | 279 | static int git_tag_config(const char *var, const char *value, void *cb) |
62e09ce9 CR |
280 | { |
281 | if (!strcmp(var, "user.signingkey")) { | |
282 | if (!value) | |
c96a6d36 | 283 | return config_error_nonbool(var); |
be15f505 | 284 | set_signingkey(value); |
62e09ce9 CR |
285 | return 0; |
286 | } | |
287 | ||
ef90d6d4 | 288 | return git_default_config(var, value, cb); |
62e09ce9 CR |
289 | } |
290 | ||
bab8118a MH |
291 | static void write_tag_body(int fd, const unsigned char *sha1) |
292 | { | |
293 | unsigned long size; | |
294 | enum object_type type; | |
e10dfb62 | 295 | char *buf, *sp; |
bab8118a MH |
296 | |
297 | buf = read_sha1_file(sha1, &type, &size); | |
298 | if (!buf) | |
299 | return; | |
300 | /* skip header */ | |
301 | sp = strstr(buf, "\n\n"); | |
302 | ||
303 | if (!sp || !size || type != OBJ_TAG) { | |
304 | free(buf); | |
305 | return; | |
306 | } | |
307 | sp += 2; /* skip the 2 LFs */ | |
e10dfb62 | 308 | write_or_die(fd, sp, parse_signature(sp, buf + size - sp)); |
bab8118a MH |
309 | |
310 | free(buf); | |
311 | } | |
312 | ||
3927bbe9 JK |
313 | static int build_tag_object(struct strbuf *buf, int sign, unsigned char *result) |
314 | { | |
315 | if (sign && do_sign(buf) < 0) | |
d08ebf99 | 316 | return error(_("unable to sign the tag")); |
3927bbe9 | 317 | if (write_sha1_file(buf->buf, buf->len, tag_type, result) < 0) |
d08ebf99 | 318 | return error(_("unable to write tag file")); |
3927bbe9 JK |
319 | return 0; |
320 | } | |
321 | ||
62e09ce9 | 322 | static void create_tag(const unsigned char *object, const char *tag, |
fd17f5b5 | 323 | struct strbuf *buf, int message, int sign, |
bd46c9a9 | 324 | unsigned char *prev, unsigned char *result) |
62e09ce9 CR |
325 | { |
326 | enum object_type type; | |
fd17f5b5 PH |
327 | char header_buf[1024]; |
328 | int header_len; | |
3927bbe9 | 329 | char *path = NULL; |
62e09ce9 CR |
330 | |
331 | type = sha1_object_info(object, NULL); | |
e317cfaf | 332 | if (type <= OBJ_NONE) |
d08ebf99 | 333 | die(_("bad object type.")); |
62e09ce9 CR |
334 | |
335 | header_len = snprintf(header_buf, sizeof(header_buf), | |
336 | "object %s\n" | |
337 | "type %s\n" | |
338 | "tag %s\n" | |
339 | "tagger %s\n\n", | |
340 | sha1_to_hex(object), | |
341 | typename(type), | |
342 | tag, | |
774751a8 | 343 | git_committer_info(IDENT_ERROR_ON_NO_NAME)); |
62e09ce9 | 344 | |
e317cfaf | 345 | if (header_len > sizeof(header_buf) - 1) |
d08ebf99 | 346 | die(_("tag header too big.")); |
62e09ce9 CR |
347 | |
348 | if (!message) { | |
62e09ce9 CR |
349 | int fd; |
350 | ||
351 | /* write the template message before editing: */ | |
a4f34cbb | 352 | path = git_pathdup("TAG_EDITMSG"); |
62e09ce9 CR |
353 | fd = open(path, O_CREAT | O_TRUNC | O_WRONLY, 0600); |
354 | if (fd < 0) | |
d08ebf99 | 355 | die_errno(_("could not create file '%s'"), path); |
bab8118a MH |
356 | |
357 | if (!is_null_sha1(prev)) | |
358 | write_tag_body(fd, prev); | |
359 | else | |
7fbff25a | 360 | write_or_die(fd, _(tag_template), strlen(_(tag_template))); |
62e09ce9 CR |
361 | close(fd); |
362 | ||
7198203a SB |
363 | if (launch_editor(path, buf, NULL)) { |
364 | fprintf(stderr, | |
d08ebf99 | 365 | _("Please supply the message using either -m or -F option.\n")); |
7198203a SB |
366 | exit(1); |
367 | } | |
62e09ce9 | 368 | } |
62e09ce9 | 369 | |
6d69b6f6 | 370 | stripspace(buf, 1); |
62e09ce9 | 371 | |
fd17f5b5 | 372 | if (!message && !buf->len) |
d08ebf99 | 373 | die(_("no tag message?")); |
62e09ce9 | 374 | |
fd17f5b5 | 375 | strbuf_insert(buf, 0, header_buf, header_len); |
62e09ce9 | 376 | |
3927bbe9 JK |
377 | if (build_tag_object(buf, sign, result) < 0) { |
378 | if (path) | |
d08ebf99 | 379 | fprintf(stderr, _("The tag message has been left in %s\n"), |
3927bbe9 JK |
380 | path); |
381 | exit(128); | |
382 | } | |
383 | if (path) { | |
691f1a28 | 384 | unlink_or_warn(path); |
3927bbe9 JK |
385 | free(path); |
386 | } | |
62e09ce9 CR |
387 | } |
388 | ||
bd46c9a9 JH |
389 | struct msg_arg { |
390 | int given; | |
391 | struct strbuf buf; | |
392 | }; | |
393 | ||
394 | static int parse_msg_arg(const struct option *opt, const char *arg, int unset) | |
395 | { | |
396 | struct msg_arg *msg = opt->value; | |
397 | ||
398 | if (!arg) | |
399 | return -1; | |
400 | if (msg->buf.len) | |
401 | strbuf_addstr(&(msg->buf), "\n\n"); | |
402 | strbuf_addstr(&(msg->buf), arg); | |
403 | msg->given = 1; | |
404 | return 0; | |
405 | } | |
406 | ||
4f0accd6 MS |
407 | static int strbuf_check_tag_ref(struct strbuf *sb, const char *name) |
408 | { | |
409 | if (name[0] == '-') | |
410 | return CHECK_REF_FORMAT_ERROR; | |
411 | ||
412 | strbuf_reset(sb); | |
413 | strbuf_addf(sb, "refs/tags/%s", name); | |
414 | ||
415 | return check_ref_format(sb->buf); | |
416 | } | |
417 | ||
62e09ce9 CR |
418 | int cmd_tag(int argc, const char **argv, const char *prefix) |
419 | { | |
f285a2d7 | 420 | struct strbuf buf = STRBUF_INIT; |
4f0accd6 | 421 | struct strbuf ref = STRBUF_INIT; |
62e09ce9 | 422 | unsigned char object[20], prev[20]; |
62e09ce9 | 423 | const char *object_ref, *tag; |
62e09ce9 CR |
424 | struct ref_lock *lock; |
425 | ||
6fa8342b | 426 | int annotate = 0, sign = 0, force = 0, lines = -1, |
78d776a9 | 427 | list = 0, delete = 0, verify = 0; |
dbd0f5c7 | 428 | const char *msgfile = NULL, *keyid = NULL; |
bd46c9a9 | 429 | struct msg_arg msg = { 0, STRBUF_INIT }; |
32c35cfb | 430 | struct commit_list *with_commit = NULL; |
39686585 | 431 | struct option options[] = { |
78d776a9 | 432 | OPT_BOOLEAN('l', NULL, &list, "list tag names"), |
e3a0ca87 SB |
433 | { OPTION_INTEGER, 'n', NULL, &lines, "n", |
434 | "print <n> lines of each tag message", | |
39686585 CR |
435 | PARSE_OPT_OPTARG, NULL, 1 }, |
436 | OPT_BOOLEAN('d', NULL, &delete, "delete tags"), | |
437 | OPT_BOOLEAN('v', NULL, &verify, "verify tags"), | |
438 | ||
439 | OPT_GROUP("Tag creation options"), | |
440 | OPT_BOOLEAN('a', NULL, &annotate, | |
441 | "annotated tag, needs a message"), | |
23c6a803 | 442 | OPT_CALLBACK('m', NULL, &msg, "message", |
3f406175 | 443 | "tag message", parse_msg_arg), |
726c4e3d | 444 | OPT_FILENAME('F', NULL, &msgfile, "read message from file"), |
39686585 CR |
445 | OPT_BOOLEAN('s', NULL, &sign, "annotated and GPG-signed tag"), |
446 | OPT_STRING('u', NULL, &keyid, "key-id", | |
447 | "use another key to sign the tag"), | |
76946b76 | 448 | OPT__FORCE(&force, "replace the tag if exists"), |
32c35cfb JG |
449 | |
450 | OPT_GROUP("Tag listing options"), | |
451 | { | |
452 | OPTION_CALLBACK, 0, "contains", &with_commit, "commit", | |
453 | "print only tags that contain the commit", | |
454 | PARSE_OPT_LASTARG_DEFAULT, | |
455 | parse_opt_with_commit, (intptr_t)"HEAD", | |
456 | }, | |
39686585 CR |
457 | OPT_END() |
458 | }; | |
459 | ||
ef90d6d4 | 460 | git_config(git_tag_config, NULL); |
62e09ce9 | 461 | |
37782920 | 462 | argc = parse_options(argc, argv, prefix, options, git_tag_usage, 0); |
62e09ce9 | 463 | |
be15f505 LT |
464 | if (keyid) { |
465 | sign = 1; | |
466 | set_signingkey(keyid); | |
467 | } | |
c1a41b9d JH |
468 | if (sign) |
469 | annotate = 1; | |
6fa8342b ST |
470 | if (argc == 0 && !(delete || verify)) |
471 | list = 1; | |
c1a41b9d | 472 | |
6fa8342b ST |
473 | if ((annotate || msg.given || msgfile || force) && |
474 | (list || delete || verify)) | |
475 | usage_with_options(git_tag_usage, options); | |
476 | ||
477 | if (list + delete + verify > 1) | |
478 | usage_with_options(git_tag_usage, options); | |
39686585 | 479 | if (list) |
588d0e83 | 480 | return list_tags(argv, lines == -1 ? 0 : lines, |
32c35cfb | 481 | with_commit); |
6fa8342b | 482 | if (lines != -1) |
d08ebf99 | 483 | die(_("-n option is only allowed with -l.")); |
32c35cfb | 484 | if (with_commit) |
d08ebf99 | 485 | die(_("--contains option is only allowed with -l.")); |
39686585 CR |
486 | if (delete) |
487 | return for_each_tag_name(argv, delete_tag); | |
488 | if (verify) | |
489 | return for_each_tag_name(argv, verify_tag); | |
490 | ||
bd46c9a9 JH |
491 | if (msg.given || msgfile) { |
492 | if (msg.given && msgfile) | |
d08ebf99 | 493 | die(_("only one -F or -m option is allowed.")); |
39686585 | 494 | annotate = 1; |
bd46c9a9 JH |
495 | if (msg.given) |
496 | strbuf_addbuf(&buf, &(msg.buf)); | |
39686585 CR |
497 | else { |
498 | if (!strcmp(msgfile, "-")) { | |
387e7e19 | 499 | if (strbuf_read(&buf, 0, 1024) < 0) |
d08ebf99 | 500 | die_errno(_("cannot read '%s'"), msgfile); |
387e7e19 | 501 | } else { |
39686585 | 502 | if (strbuf_read_file(&buf, msgfile, 1024) < 0) |
d08ebf99 | 503 | die_errno(_("could not open or read '%s'"), |
d824cbba | 504 | msgfile); |
62e09ce9 | 505 | } |
62e09ce9 | 506 | } |
62e09ce9 CR |
507 | } |
508 | ||
39686585 | 509 | tag = argv[0]; |
62e09ce9 | 510 | |
39686585 CR |
511 | object_ref = argc == 2 ? argv[1] : "HEAD"; |
512 | if (argc > 2) | |
d08ebf99 | 513 | die(_("too many params")); |
62e09ce9 CR |
514 | |
515 | if (get_sha1(object_ref, object)) | |
d08ebf99 | 516 | die(_("Failed to resolve '%s' as a valid ref."), object_ref); |
62e09ce9 | 517 | |
4f0accd6 | 518 | if (strbuf_check_tag_ref(&ref, tag)) |
d08ebf99 | 519 | die(_("'%s' is not a valid tag name."), tag); |
62e09ce9 | 520 | |
4f0accd6 | 521 | if (!resolve_ref(ref.buf, prev, 1, NULL)) |
62e09ce9 CR |
522 | hashclr(prev); |
523 | else if (!force) | |
d08ebf99 | 524 | die(_("tag '%s' already exists"), tag); |
62e09ce9 CR |
525 | |
526 | if (annotate) | |
bd46c9a9 JH |
527 | create_tag(object, tag, &buf, msg.given || msgfile, |
528 | sign, prev, object); | |
62e09ce9 | 529 | |
4f0accd6 | 530 | lock = lock_any_ref_for_update(ref.buf, prev, 0); |
62e09ce9 | 531 | if (!lock) |
4f0accd6 | 532 | die(_("%s: cannot lock the ref"), ref.buf); |
62e09ce9 | 533 | if (write_ref_sha1(lock, object, NULL) < 0) |
4f0accd6 | 534 | die(_("%s: cannot update the ref"), ref.buf); |
0a043b1f | 535 | if (force && hashcmp(prev, object)) |
d08ebf99 | 536 | printf(_("Updated tag '%s' (was %s)\n"), tag, find_unique_abbrev(prev, DEFAULT_ABBREV)); |
62e09ce9 | 537 | |
fd17f5b5 | 538 | strbuf_release(&buf); |
4f0accd6 | 539 | strbuf_release(&ref); |
62e09ce9 CR |
540 | return 0; |
541 | } |