1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
|
/*
* Builtin "git tag"
*
* Copyright (c) 2007 Kristian Høgsberg <krh@redhat.com>,
* Carlos Rica <jasampler@gmail.com>
* Based on git-tag.sh and mktag.c by Linus Torvalds.
*/
#include "cache.h"
#include "advice.h"
#include "config.h"
#include "builtin.h"
#include "editor.h"
#include "environment.h"
#include "gettext.h"
#include "hex.h"
#include "refs.h"
#include "object-name.h"
#include "object-store.h"
#include "tag.h"
#include "run-command.h"
#include "parse-options.h"
#include "diff.h"
#include "revision.h"
#include "gpg-interface.h"
#include "oid-array.h"
#include "column.h"
#include "ref-filter.h"
#include "date.h"
#include "write-or-die.h"
static const char * const git_tag_usage[] = {
N_("git tag [-a | -s | -u <key-id>] [-f] [-m <msg> | -F <file>] [-e]\n"
" <tagname> [<commit> | <object>]"),
N_("git tag -d <tagname>..."),
N_("git tag [-n[<num>]] -l [--contains <commit>] [--no-contains <commit>]\n"
" [--points-at <object>] [--column[=<options>] | --no-column]\n"
" [--create-reflog] [--sort=<key>] [--format=<format>]\n"
" [--merged <commit>] [--no-merged <commit>] [<pattern>...]"),
N_("git tag -v [--format=<format>] <tagname>..."),
NULL
};
static unsigned int colopts;
static int force_sign_annotate;
static int config_sign_tag = -1; /* unspecified */
static int omit_empty = 0;
static int list_tags(struct ref_filter *filter, struct ref_sorting *sorting,
struct ref_format *format)
{
struct ref_array array;
struct strbuf output = STRBUF_INIT;
struct strbuf err = STRBUF_INIT;
char *to_free = NULL;
int i;
memset(&array, 0, sizeof(array));
if (filter->lines == -1)
filter->lines = 0;
if (!format->format) {
if (filter->lines) {
to_free = xstrfmt("%s %%(contents:lines=%d)",
"%(align:15)%(refname:lstrip=2)%(end)",
filter->lines);
format->format = to_free;
} else
format->format = "%(refname:lstrip=2)";
}
if (verify_ref_format(format))
die(_("unable to parse format string"));
filter->with_commit_tag_algo = 1;
filter_refs(&array, filter, FILTER_REFS_TAGS);
filter_ahead_behind(the_repository, format, &array);
ref_array_sort(sorting, &array);
for (i = 0; i < array.nr; i++) {
strbuf_reset(&output);
strbuf_reset(&err);
if (format_ref_array_item(array.items[i], format, &output, &err))
die("%s", err.buf);
fwrite(output.buf, 1, output.len, stdout);
if (output.len || !omit_empty)
putchar('\n');
}
strbuf_release(&err);
strbuf_release(&output);
ref_array_clear(&array);
free(to_free);
return 0;
}
typedef int (*each_tag_name_fn)(const char *name, const char *ref,
const struct object_id *oid, void *cb_data);
static int for_each_tag_name(const char **argv, each_tag_name_fn fn,
void *cb_data)
{
const char **p;
struct strbuf ref = STRBUF_INIT;
int had_error = 0;
struct object_id oid;
for (p = argv; *p; p++) {
strbuf_reset(&ref);
strbuf_addf(&ref, "refs/tags/%s", *p);
if (read_ref(ref.buf, &oid)) {
error(_("tag '%s' not found."), *p);
had_error = 1;
continue;
}
if (fn(*p, ref.buf, &oid, cb_data))
had_error = 1;
}
strbuf_release(&ref);
return had_error;
}
static int collect_tags(const char *name, const char *ref,
const struct object_id *oid, void *cb_data)
{
struct string_list *ref_list = cb_data;
string_list_append(ref_list, ref);
ref_list->items[ref_list->nr - 1].util = oiddup(oid);
return 0;
}
static int delete_tags(const char **argv)
{
int result;
struct string_list refs_to_delete = STRING_LIST_INIT_DUP;
struct string_list_item *item;
result = for_each_tag_name(argv, collect_tags, (void *)&refs_to_delete);
if (delete_refs(NULL, &refs_to_delete, REF_NO_DEREF))
result = 1;
for_each_string_list_item(item, &refs_to_delete) {
const char *name = item->string;
struct object_id *oid = item->util;
if (!ref_exists(name))
printf(_("Deleted tag '%s' (was %s)\n"),
item->string + 10,
repo_find_unique_abbrev(the_repository, oid, DEFAULT_ABBREV));
free(oid);
}
string_list_clear(&refs_to_delete, 0);
return result;
}
static int verify_tag(const char *name, const char *ref,
const struct object_id *oid, void *cb_data)
{
int flags;
struct ref_format *format = cb_data;
flags = GPG_VERIFY_VERBOSE;
if (format->format)
flags = GPG_VERIFY_OMIT_STATUS;
if (gpg_verify_tag(oid, name, flags))
return -1;
if (format->format)
pretty_print_ref(name, oid, format);
return 0;
}
static int do_sign(struct strbuf *buffer)
{
return sign_buffer(buffer, buffer, get_signing_key());
}
static const char tag_template[] =
N_("\nWrite a message for tag:\n %s\n"
"Lines starting with '%c' will be ignored.\n");
static const char tag_template_nocleanup[] =
N_("\nWrite a message for tag:\n %s\n"
"Lines starting with '%c' will be kept; you may remove them"
" yourself if you want to.\n");
static int git_tag_config(const char *var, const char *value, void *cb)
{
if (!strcmp(var, "tag.gpgsign")) {
config_sign_tag = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "tag.sort")) {
if (!value)
return config_error_nonbool(var);
string_list_append(cb, value);
return 0;
}
if (!strcmp(var, "tag.forcesignannotated")) {
force_sign_annotate = git_config_bool(var, value);
return 0;
}
if (starts_with(var, "column."))
return git_column_config(var, value, "tag", &colopts);
return git_color_default_config(var, value, cb);
}
static void write_tag_body(int fd, const struct object_id *oid)
{
unsigned long size;
enum object_type type;
char *buf, *sp, *orig;
struct strbuf payload = STRBUF_INIT;
struct strbuf signature = STRBUF_INIT;
orig = buf = repo_read_object_file(the_repository, oid, &type, &size);
if (!buf)
return;
if (parse_signature(buf, size, &payload, &signature)) {
buf = payload.buf;
size = payload.len;
}
/* skip header */
sp = strstr(buf, "\n\n");
if (!sp || !size || type != OBJ_TAG) {
free(buf);
return;
}
sp += 2; /* skip the 2 LFs */
write_or_die(fd, sp, buf + size - sp);
free(orig);
strbuf_release(&payload);
strbuf_release(&signature);
}
static int build_tag_object(struct strbuf *buf, int sign, struct object_id *result)
{
if (sign && do_sign(buf) < 0)
return error(_("unable to sign the tag"));
if (write_object_file(buf->buf, buf->len, OBJ_TAG, result) < 0)
return error(_("unable to write tag file"));
return 0;
}
struct create_tag_options {
unsigned int message_given:1;
unsigned int use_editor:1;
unsigned int sign;
enum {
CLEANUP_NONE,
CLEANUP_SPACE,
CLEANUP_ALL
} cleanup_mode;
};
static const char message_advice_nested_tag[] =
N_("You have created a nested tag. The object referred to by your new tag is\n"
"already a tag. If you meant to tag the object that it points to, use:\n"
"\n"
"\tgit tag -f %s %s^{}");
static void create_tag(const struct object_id *object, const char *object_ref,
const char *tag,
struct strbuf *buf, struct create_tag_options *opt,
struct object_id *prev, struct object_id *result)
{
enum object_type type;
struct strbuf header = STRBUF_INIT;
char *path = NULL;
type = oid_object_info(the_repository, object, NULL);
if (type <= OBJ_NONE)
die(_("bad object type."));
if (type == OBJ_TAG)
advise_if_enabled(ADVICE_NESTED_TAG, _(message_advice_nested_tag),
tag, object_ref);
strbuf_addf(&header,
"object %s\n"
"type %s\n"
"tag %s\n"
"tagger %s\n\n",
oid_to_hex(object),
type_name(type),
tag,
git_committer_info(IDENT_STRICT));
if (!opt->message_given || opt->use_editor) {
int fd;
/* write the template message before editing: */
path = git_pathdup("TAG_EDITMSG");
fd = xopen(path, O_CREAT | O_TRUNC | O_WRONLY, 0600);
if (opt->message_given) {
write_or_die(fd, buf->buf, buf->len);
strbuf_reset(buf);
} else if (!is_null_oid(prev)) {
write_tag_body(fd, prev);
} else {
struct strbuf buf = STRBUF_INIT;
strbuf_addch(&buf, '\n');
if (opt->cleanup_mode == CLEANUP_ALL)
strbuf_commented_addf(&buf, _(tag_template), tag, comment_line_char);
else
strbuf_commented_addf(&buf, _(tag_template_nocleanup), tag, comment_line_char);
write_or_die(fd, buf.buf, buf.len);
strbuf_release(&buf);
}
close(fd);
if (launch_editor(path, buf, NULL)) {
fprintf(stderr,
_("Please supply the message using either -m or -F option.\n"));
exit(1);
}
}
if (opt->cleanup_mode != CLEANUP_NONE)
strbuf_stripspace(buf, opt->cleanup_mode == CLEANUP_ALL);
if (!opt->message_given && !buf->len)
die(_("no tag message?"));
strbuf_insert(buf, 0, header.buf, header.len);
strbuf_release(&header);
if (build_tag_object(buf, opt->sign, result) < 0) {
if (path)
fprintf(stderr, _("The tag message has been left in %s\n"),
path);
exit(128);
}
if (path) {
unlink_or_warn(path);
free(path);
}
}
static void create_reflog_msg(const struct object_id *oid, struct strbuf *sb)
{
enum object_type type;
struct commit *c;
char *buf;
unsigned long size;
int subject_len = 0;
const char *subject_start;
char *rla = getenv("GIT_REFLOG_ACTION");
if (rla) {
strbuf_addstr(sb, rla);
} else {
strbuf_addstr(sb, "tag: tagging ");
strbuf_add_unique_abbrev(sb, oid, DEFAULT_ABBREV);
}
strbuf_addstr(sb, " (");
type = oid_object_info(the_repository, oid, NULL);
switch (type) {
default:
strbuf_addstr(sb, "object of unknown type");
break;
case OBJ_COMMIT:
if ((buf = repo_read_object_file(the_repository, oid, &type, &size))) {
subject_len = find_commit_subject(buf, &subject_start);
strbuf_insert(sb, sb->len, subject_start, subject_len);
} else {
strbuf_addstr(sb, "commit object");
}
free(buf);
if ((c = lookup_commit_reference(the_repository, oid)))
strbuf_addf(sb, ", %s", show_date(c->date, 0, DATE_MODE(SHORT)));
break;
case OBJ_TREE:
strbuf_addstr(sb, "tree object");
break;
case OBJ_BLOB:
strbuf_addstr(sb, "blob object");
break;
case OBJ_TAG:
strbuf_addstr(sb, "other tag object");
break;
}
strbuf_addch(sb, ')');
}
struct msg_arg {
int given;
struct strbuf buf;
};
static int parse_msg_arg(const struct option *opt, const char *arg, int unset)
{
struct msg_arg *msg = opt->value;
BUG_ON_OPT_NEG(unset);
if (!arg)
return -1;
if (msg->buf.len)
strbuf_addstr(&(msg->buf), "\n\n");
strbuf_addstr(&(msg->buf), arg);
msg->given = 1;
return 0;
}
static int strbuf_check_tag_ref(struct strbuf *sb, const char *name)
{
if (name[0] == '-')
return -1;
strbuf_reset(sb);
strbuf_addf(sb, "refs/tags/%s", name);
return check_refname_format(sb->buf, 0);
}
int cmd_tag(int argc, const char **argv, const char *prefix)
{
struct strbuf buf = STRBUF_INIT;
struct strbuf ref = STRBUF_INIT;
struct strbuf reflog_msg = STRBUF_INIT;
struct object_id object, prev;
const char *object_ref, *tag;
struct create_tag_options opt;
char *cleanup_arg = NULL;
int create_reflog = 0;
int annotate = 0, force = 0;
int cmdmode = 0, create_tag_object = 0;
char *msgfile = NULL;
const char *keyid = NULL;
struct msg_arg msg = { .buf = STRBUF_INIT };
struct ref_transaction *transaction;
struct strbuf err = STRBUF_INIT;
struct ref_filter filter = REF_FILTER_INIT;
struct ref_sorting *sorting;
struct string_list sorting_options = STRING_LIST_INIT_DUP;
struct ref_format format = REF_FORMAT_INIT;
int icase = 0;
int edit_flag = 0;
struct option options[] = {
OPT_CMDMODE('l', "list", &cmdmode, N_("list tag names"), 'l'),
{ OPTION_INTEGER, 'n', NULL, &filter.lines, N_("n"),
N_("print <n> lines of each tag message"),
PARSE_OPT_OPTARG, NULL, 1 },
OPT_CMDMODE('d', "delete", &cmdmode, N_("delete tags"), 'd'),
OPT_CMDMODE('v', "verify", &cmdmode, N_("verify tags"), 'v'),
OPT_GROUP(N_("Tag creation options")),
OPT_BOOL('a', "annotate", &annotate,
N_("annotated tag, needs a message")),
OPT_CALLBACK_F('m', "message", &msg, N_("message"),
N_("tag message"), PARSE_OPT_NONEG, parse_msg_arg),
OPT_FILENAME('F', "file", &msgfile, N_("read message from file")),
OPT_BOOL('e', "edit", &edit_flag, N_("force edit of tag message")),
OPT_BOOL('s', "sign", &opt.sign, N_("annotated and GPG-signed tag")),
OPT_CLEANUP(&cleanup_arg),
OPT_STRING('u', "local-user", &keyid, N_("key-id"),
N_("use another key to sign the tag")),
OPT__FORCE(&force, N_("replace the tag if exists"), 0),
OPT_BOOL(0, "create-reflog", &create_reflog, N_("create a reflog")),
OPT_GROUP(N_("Tag listing options")),
OPT_COLUMN(0, "column", &colopts, N_("show tag list in columns")),
OPT_CONTAINS(&filter.with_commit, N_("print only tags that contain the commit")),
OPT_NO_CONTAINS(&filter.no_commit, N_("print only tags that don't contain the commit")),
OPT_WITH(&filter.with_commit, N_("print only tags that contain the commit")),
OPT_WITHOUT(&filter.no_commit, N_("print only tags that don't contain the commit")),
OPT_MERGED(&filter, N_("print only tags that are merged")),
OPT_NO_MERGED(&filter, N_("print only tags that are not merged")),
OPT_BOOL(0, "omit-empty", &omit_empty,
N_("do not output a newline after empty formatted refs")),
OPT_REF_SORT(&sorting_options),
{
OPTION_CALLBACK, 0, "points-at", &filter.points_at, N_("object"),
N_("print only tags of the object"), PARSE_OPT_LASTARG_DEFAULT,
parse_opt_object_name, (intptr_t) "HEAD"
},
OPT_STRING( 0 , "format", &format.format, N_("format"),
N_("format to use for the output")),
OPT__COLOR(&format.use_color, N_("respect format colors")),
OPT_BOOL('i', "ignore-case", &icase, N_("sorting and filtering are case insensitive")),
OPT_END()
};
int ret = 0;
const char *only_in_list = NULL;
setup_ref_filter_porcelain_msg();
git_config(git_tag_config, &sorting_options);
memset(&opt, 0, sizeof(opt));
filter.lines = -1;
opt.sign = -1;
argc = parse_options(argc, argv, prefix, options, git_tag_usage, 0);
if (!cmdmode) {
if (argc == 0)
cmdmode = 'l';
else if (filter.with_commit || filter.no_commit ||
filter.reachable_from || filter.unreachable_from ||
filter.points_at.nr || filter.lines != -1)
cmdmode = 'l';
}
if (cmdmode == 'l')
setup_auto_pager("tag", 1);
if (opt.sign == -1)
opt.sign = cmdmode ? 0 : config_sign_tag > 0;
if (keyid) {
opt.sign = 1;
set_signing_key(keyid);
}
create_tag_object = (opt.sign || annotate || msg.given || msgfile);
if ((create_tag_object || force) && (cmdmode != 0))
usage_with_options(git_tag_usage, options);
finalize_colopts(&colopts, -1);
if (cmdmode == 'l' && filter.lines != -1) {
if (explicitly_enable_column(colopts))
die(_("options '%s' and '%s' cannot be used together"), "--column", "-n");
colopts = 0;
}
sorting = ref_sorting_options(&sorting_options);
ref_sorting_set_sort_flags_all(sorting, REF_SORTING_ICASE, icase);
filter.ignore_case = icase;
if (cmdmode == 'l') {
if (column_active(colopts)) {
struct column_options copts;
memset(&copts, 0, sizeof(copts));
copts.padding = 2;
run_column_filter(colopts, &copts);
}
filter.name_patterns = argv;
ret = list_tags(&filter, sorting, &format);
if (column_active(colopts))
stop_column_filter();
goto cleanup;
}
if (filter.lines != -1)
only_in_list = "-n";
else if (filter.with_commit)
only_in_list = "--contains";
else if (filter.no_commit)
only_in_list = "--no-contains";
else if (filter.points_at.nr)
only_in_list = "--points-at";
else if (filter.reachable_from)
only_in_list = "--merged";
else if (filter.unreachable_from)
only_in_list = "--no-merged";
if (only_in_list)
die(_("the '%s' option is only allowed in list mode"), only_in_list);
if (cmdmode == 'd') {
ret = delete_tags(argv);
goto cleanup;
}
if (cmdmode == 'v') {
if (format.format && verify_ref_format(&format))
usage_with_options(git_tag_usage, options);
ret = for_each_tag_name(argv, verify_tag, &format);
goto cleanup;
}
if (msg.given || msgfile) {
if (msg.given && msgfile)
die(_("options '%s' and '%s' cannot be used together"), "-F", "-m");
if (msg.given)
strbuf_addbuf(&buf, &(msg.buf));
else {
if (!strcmp(msgfile, "-")) {
if (strbuf_read(&buf, 0, 1024) < 0)
die_errno(_("cannot read '%s'"), msgfile);
} else {
if (strbuf_read_file(&buf, msgfile, 1024) < 0)
die_errno(_("could not open or read '%s'"),
msgfile);
}
}
}
tag = argv[0];
object_ref = argc == 2 ? argv[1] : "HEAD";
if (argc > 2)
die(_("too many arguments"));
if (repo_get_oid(the_repository, object_ref, &object))
die(_("Failed to resolve '%s' as a valid ref."), object_ref);
if (strbuf_check_tag_ref(&ref, tag))
die(_("'%s' is not a valid tag name."), tag);
if (read_ref(ref.buf, &prev))
oidclr(&prev);
else if (!force)
die(_("tag '%s' already exists"), tag);
opt.message_given = msg.given || msgfile;
opt.use_editor = edit_flag;
if (!cleanup_arg || !strcmp(cleanup_arg, "strip"))
opt.cleanup_mode = CLEANUP_ALL;
else if (!strcmp(cleanup_arg, "verbatim"))
opt.cleanup_mode = CLEANUP_NONE;
else if (!strcmp(cleanup_arg, "whitespace"))
opt.cleanup_mode = CLEANUP_SPACE;
else
die(_("Invalid cleanup mode %s"), cleanup_arg);
create_reflog_msg(&object, &reflog_msg);
if (create_tag_object) {
if (force_sign_annotate && !annotate)
opt.sign = 1;
create_tag(&object, object_ref, tag, &buf, &opt, &prev, &object);
}
transaction = ref_transaction_begin(&err);
if (!transaction ||
ref_transaction_update(transaction, ref.buf, &object, &prev,
create_reflog ? REF_FORCE_CREATE_REFLOG : 0,
reflog_msg.buf, &err) ||
ref_transaction_commit(transaction, &err))
die("%s", err.buf);
ref_transaction_free(transaction);
if (force && !is_null_oid(&prev) && !oideq(&prev, &object))
printf(_("Updated tag '%s' (was %s)\n"), tag,
repo_find_unique_abbrev(the_repository, &prev, DEFAULT_ABBREV));
cleanup:
ref_sorting_release(sorting);
ref_filter_clear(&filter);
strbuf_release(&buf);
strbuf_release(&ref);
strbuf_release(&reflog_msg);
strbuf_release(&msg.buf);
strbuf_release(&err);
free(msgfile);
return ret;
}
|