builtin/tag.c

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