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 #define USE_THE_REPOSITORY_VARIABLE
   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 #include "object-file-convert.h"
  31 #include "trailer.h"
  32
  33 static const char * const git_tag_usage[] = {
  34         N_("git tag [-a | -s | -u <key-id>] [-f] [-m <msg> | -F <file>] [-e]\n"
  35            "        [(--trailer <token>[(=|:)<value>])...]\n"
  36            "        <tagname> [<commit> | <object>]"),
  37         N_("git tag -d <tagname>..."),
  38         N_("git tag [-n[<num>]] -l [--contains <commit>] [--no-contains <commit>]\n"
  39            "        [--points-at <object>] [--column[=<options>] | --no-column]\n"
  40            "        [--create-reflog] [--sort=<key>] [--format=<format>]\n"
  41            "        [--merged <commit>] [--no-merged <commit>] [<pattern>...]"),
  42         N_("git tag -v [--format=<format>] <tagname>..."),
  43         NULL
  44 };
  45
  46 static unsigned int colopts;
  47 static int force_sign_annotate;
  48 static int config_sign_tag = -1; /* unspecified */
  49
  50 static int list_tags(struct ref_filter *filter, struct ref_sorting *sorting,
  51                      struct ref_format *format)
  52 {
  53         char *to_free = NULL;
  54
  55         if (filter->lines == -1)
  56                 filter->lines = 0;
  57
  58         if (!format->format) {
  59                 if (filter->lines) {
  60                         to_free = xstrfmt("%s %%(contents:lines=%d)",
  61                                           "%(align:15)%(refname:lstrip=2)%(end)",
  62                                           filter->lines);
  63                         format->format = to_free;
  64                 } else
  65                         format->format = "%(refname:lstrip=2)";
  66         }
  67
  68         if (verify_ref_format(format))
  69                 die(_("unable to parse format string"));
  70         filter->with_commit_tag_algo = 1;
  71         filter_and_format_refs(filter, FILTER_REFS_TAGS, sorting, format);
  72
  73         free(to_free);
  74
  75         return 0;
  76 }
  77
  78 typedef int (*each_tag_name_fn)(const char *name, const char *ref,
  79                                 const struct object_id *oid, void *cb_data);
  80
  81 static int for_each_tag_name(const char **argv, each_tag_name_fn fn,
  82                              void *cb_data)
  83 {
  84         const char **p;
  85         struct strbuf ref = STRBUF_INIT;
  86         int had_error = 0;
  87         struct object_id oid;
  88
  89         for (p = argv; *p; p++) {
  90                 strbuf_reset(&ref);
  91                 strbuf_addf(&ref, "refs/tags/%s", *p);
  92                 if (refs_read_ref(get_main_ref_store(the_repository), ref.buf, &oid)) {
  93                         error(_("tag '%s' not found."), *p);
  94                         had_error = 1;
  95                         continue;
  96                 }
  97                 if (fn(*p, ref.buf, &oid, cb_data))
  98                         had_error = 1;
  99         }
 100         strbuf_release(&ref);
 101         return had_error;
 102 }
 103
 104 static int collect_tags(const char *name UNUSED, const char *ref,
 105                         const struct object_id *oid, void *cb_data)
 106 {
 107         struct string_list *ref_list = cb_data;
 108
 109         string_list_append(ref_list, ref);
 110         ref_list->items[ref_list->nr - 1].util = oiddup(oid);
 111         return 0;
 112 }
 113
 114 static int delete_tags(const char **argv)
 115 {
 116         int result;
 117         struct string_list refs_to_delete = STRING_LIST_INIT_DUP;
 118         struct string_list_item *item;
 119
 120         result = for_each_tag_name(argv, collect_tags, (void *)&refs_to_delete);
 121         if (refs_delete_refs(get_main_ref_store(the_repository), NULL, &refs_to_delete, REF_NO_DEREF))
 122                 result = 1;
 123
 124         for_each_string_list_item(item, &refs_to_delete) {
 125                 const char *name = item->string;
 126                 struct object_id *oid = item->util;
 127                 if (!refs_ref_exists(get_main_ref_store(the_repository), name))
 128                         printf(_("Deleted tag '%s' (was %s)\n"),
 129                                 item->string + 10,
 130                                 repo_find_unique_abbrev(the_repository, oid, DEFAULT_ABBREV));
 131
 132                 free(oid);
 133         }
 134         string_list_clear(&refs_to_delete, 0);
 135         return result;
 136 }
 137
 138 static int verify_tag(const char *name, const char *ref UNUSED,
 139                       const struct object_id *oid, void *cb_data)
 140 {
 141         int flags;
 142         struct ref_format *format = cb_data;
 143         flags = GPG_VERIFY_VERBOSE;
 144
 145         if (format->format)
 146                 flags = GPG_VERIFY_OMIT_STATUS;
 147
 148         if (gpg_verify_tag(oid, name, flags))
 149                 return -1;
 150
 151         if (format->format)
 152                 pretty_print_ref(name, oid, format);
 153
 154         return 0;
 155 }
 156
 157 static int do_sign(struct strbuf *buffer, struct object_id **compat_oid,
 158                    struct object_id *compat_oid_buf)
 159 {
 160         const struct git_hash_algo *compat = the_repository->compat_hash_algo;
 161         struct strbuf sig = STRBUF_INIT, compat_sig = STRBUF_INIT;
 162         struct strbuf compat_buf = STRBUF_INIT;
 163         char *keyid = get_signing_key();
 164         int ret = -1;
 165
 166         if (sign_buffer(buffer, &sig, keyid))
 167                 return -1;
 168
 169         if (compat) {
 170                 const struct git_hash_algo *algo = the_repository->hash_algo;
 171
 172                 if (convert_object_file(&compat_buf, algo, compat,
 173                                         buffer->buf, buffer->len, OBJ_TAG, 1))
 174                         goto out;
 175                 if (sign_buffer(&compat_buf, &compat_sig, keyid))
 176                         goto out;
 177                 add_header_signature(&compat_buf, &sig, algo);
 178                 strbuf_addbuf(&compat_buf, &compat_sig);
 179                 hash_object_file(compat, compat_buf.buf, compat_buf.len,
 180                                  OBJ_TAG, compat_oid_buf);
 181                 *compat_oid = compat_oid_buf;
 182         }
 183
 184         if (compat_sig.len)
 185                 add_header_signature(buffer, &compat_sig, compat);
 186
 187         strbuf_addbuf(buffer, &sig);
 188         ret = 0;
 189 out:
 190         strbuf_release(&sig);
 191         strbuf_release(&compat_sig);
 192         strbuf_release(&compat_buf);
 193         free(keyid);
 194         return ret;
 195 }
 196
 197 static const char tag_template[] =
 198         N_("\nWrite a message for tag:\n  %s\n"
 199         "Lines starting with '%s' will be ignored.\n");
 200
 201 static const char tag_template_nocleanup[] =
 202         N_("\nWrite a message for tag:\n  %s\n"
 203         "Lines starting with '%s' will be kept; you may remove them"
 204         " yourself if you want to.\n");
 205
 206 static int git_tag_config(const char *var, const char *value,
 207                           const struct config_context *ctx, void *cb)
 208 {
 209         if (!strcmp(var, "tag.gpgsign")) {
 210                 config_sign_tag = git_config_bool(var, value);
 211                 return 0;
 212         }
 213
 214         if (!strcmp(var, "tag.sort")) {
 215                 if (!value)
 216                         return config_error_nonbool(var);
 217                 string_list_append(cb, value);
 218                 return 0;
 219         }
 220
 221         if (!strcmp(var, "tag.forcesignannotated")) {
 222                 force_sign_annotate = git_config_bool(var, value);
 223                 return 0;
 224         }
 225
 226         if (starts_with(var, "column."))
 227                 return git_column_config(var, value, "tag", &colopts);
 228
 229         if (git_color_config(var, value, cb) < 0)
 230                 return -1;
 231
 232         return git_default_config(var, value, ctx, cb);
 233 }
 234
 235 static void write_tag_body(int fd, const struct object_id *oid)
 236 {
 237         unsigned long size;
 238         enum object_type type;
 239         char *buf, *sp, *orig;
 240         struct strbuf payload = STRBUF_INIT;
 241         struct strbuf signature = STRBUF_INIT;
 242
 243         orig = buf = repo_read_object_file(the_repository, oid, &type, &size);
 244         if (!buf)
 245                 return;
 246         if (parse_signature(buf, size, &payload, &signature)) {
 247                 buf = payload.buf;
 248                 size = payload.len;
 249         }
 250         /* skip header */
 251         sp = strstr(buf, "\n\n");
 252
 253         if (!sp || !size || type != OBJ_TAG) {
 254                 free(buf);
 255                 return;
 256         }
 257         sp += 2; /* skip the 2 LFs */
 258         write_or_die(fd, sp, buf + size - sp);
 259
 260         free(orig);
 261         strbuf_release(&payload);
 262         strbuf_release(&signature);
 263 }
 264
 265 static int build_tag_object(struct strbuf *buf, int sign, struct object_id *result)
 266 {
 267         struct object_id *compat_oid = NULL, compat_oid_buf;
 268         if (sign && do_sign(buf, &compat_oid, &compat_oid_buf) < 0)
 269                 return error(_("unable to sign the tag"));
 270         if (write_object_file_flags(buf->buf, buf->len, OBJ_TAG, result,
 271                                     compat_oid, 0) < 0)
 272                 return error(_("unable to write tag file"));
 273         return 0;
 274 }
 275
 276 struct create_tag_options {
 277         unsigned int message_given:1;
 278         unsigned int use_editor:1;
 279         unsigned int sign;
 280         enum {
 281                 CLEANUP_NONE,
 282                 CLEANUP_SPACE,
 283                 CLEANUP_ALL
 284         } cleanup_mode;
 285 };
 286
 287 static const char message_advice_nested_tag[] =
 288         N_("You have created a nested tag. The object referred to by your new tag is\n"
 289            "already a tag. If you meant to tag the object that it points to, use:\n"
 290            "\n"
 291            "\tgit tag -f %s %s^{}");
 292
 293 static void create_tag(const struct object_id *object, const char *object_ref,
 294                        const char *tag,
 295                        struct strbuf *buf, struct create_tag_options *opt,
 296                        struct object_id *prev, struct object_id *result,
 297                        struct strvec *trailer_args, char *path)
 298 {
 299         enum object_type type;
 300         struct strbuf header = STRBUF_INIT;
 301         int should_edit;
 302
 303         type = oid_object_info(the_repository, object, NULL);
 304         if (type <= OBJ_NONE)
 305                 die(_("bad object type."));
 306
 307         if (type == OBJ_TAG)
 308                 advise_if_enabled(ADVICE_NESTED_TAG, _(message_advice_nested_tag),
 309                                   tag, object_ref);
 310
 311         strbuf_addf(&header,
 312                     "object %s\n"
 313                     "type %s\n"
 314                     "tag %s\n"
 315                     "tagger %s\n\n",
 316                     oid_to_hex(object),
 317                     type_name(type),
 318                     tag,
 319                     git_committer_info(IDENT_STRICT));
 320
 321         should_edit = opt->use_editor || !opt->message_given;
 322         if (should_edit || trailer_args->nr) {
 323                 int fd;
 324
 325                 /* write the template message before editing: */
 326                 fd = xopen(path, O_CREAT | O_TRUNC | O_WRONLY, 0600);
 327
 328                 if (opt->message_given && buf->len) {
 329                         strbuf_complete(buf, '\n');
 330                         write_or_die(fd, buf->buf, buf->len);
 331                         strbuf_reset(buf);
 332                 } else if (!is_null_oid(prev)) {
 333                         write_tag_body(fd, prev);
 334                 } else {
 335                         struct strbuf buf = STRBUF_INIT;
 336                         strbuf_addch(&buf, '\n');
 337                         if (opt->cleanup_mode == CLEANUP_ALL)
 338                                 strbuf_commented_addf(&buf, comment_line_str,
 339                                       _(tag_template), tag, comment_line_str);
 340                         else
 341                                 strbuf_commented_addf(&buf, comment_line_str,
 342                                       _(tag_template_nocleanup), tag, comment_line_str);
 343                         write_or_die(fd, buf.buf, buf.len);
 344                         strbuf_release(&buf);
 345                 }
 346                 close(fd);
 347
 348                 if (trailer_args->nr && amend_file_with_trailers(path, trailer_args))
 349                         die(_("unable to pass trailers to --trailers"));
 350
 351                 if (should_edit) {
 352                         if (launch_editor(path, buf, NULL)) {
 353                                 fprintf(stderr,
 354                                         _("Please supply the message using either -m or -F option.\n"));
 355                                 exit(1);
 356                         }
 357                 } else if (trailer_args->nr) {
 358                         strbuf_reset(buf);
 359                         if (strbuf_read_file(buf, path, 0) < 0)
 360                                 die_errno(_("failed to read '%s'"), path);
 361                 }
 362         }
 363
 364         if (opt->cleanup_mode != CLEANUP_NONE)
 365                 strbuf_stripspace(buf,
 366                   opt->cleanup_mode == CLEANUP_ALL ? comment_line_str : NULL);
 367
 368         if (!opt->message_given && !buf->len)
 369                 die(_("no tag message?"));
 370
 371         strbuf_insert(buf, 0, header.buf, header.len);
 372         strbuf_release(&header);
 373
 374         if (build_tag_object(buf, opt->sign, result) < 0) {
 375                 if (path)
 376                         fprintf(stderr, _("The tag message has been left in %s\n"),
 377                                 path);
 378                 exit(128);
 379         }
 380 }
 381
 382 static void create_reflog_msg(const struct object_id *oid, struct strbuf *sb)
 383 {
 384         enum object_type type;
 385         struct commit *c;
 386         char *buf;
 387         unsigned long size;
 388         int subject_len = 0;
 389         const char *subject_start;
 390
 391         char *rla = getenv("GIT_REFLOG_ACTION");
 392         if (rla) {
 393                 strbuf_addstr(sb, rla);
 394         } else {
 395                 strbuf_addstr(sb, "tag: tagging ");
 396                 strbuf_add_unique_abbrev(sb, oid, DEFAULT_ABBREV);
 397         }
 398
 399         strbuf_addstr(sb, " (");
 400         type = oid_object_info(the_repository, oid, NULL);
 401         switch (type) {
 402         default:
 403                 strbuf_addstr(sb, "object of unknown type");
 404                 break;
 405         case OBJ_COMMIT:
 406                 if ((buf = repo_read_object_file(the_repository, oid, &type, &size))) {
 407                         subject_len = find_commit_subject(buf, &subject_start);
 408                         strbuf_insert(sb, sb->len, subject_start, subject_len);
 409                 } else {
 410                         strbuf_addstr(sb, "commit object");
 411                 }
 412                 free(buf);
 413
 414                 if ((c = lookup_commit_reference(the_repository, oid)))
 415                         strbuf_addf(sb, ", %s", show_date(c->date, 0, DATE_MODE(SHORT)));
 416                 break;
 417         case OBJ_TREE:
 418                 strbuf_addstr(sb, "tree object");
 419                 break;
 420         case OBJ_BLOB:
 421                 strbuf_addstr(sb, "blob object");
 422                 break;
 423         case OBJ_TAG:
 424                 strbuf_addstr(sb, "other tag object");
 425                 break;
 426         }
 427         strbuf_addch(sb, ')');
 428 }
 429
 430 struct msg_arg {
 431         int given;
 432         struct strbuf buf;
 433 };
 434
 435 static int parse_msg_arg(const struct option *opt, const char *arg, int unset)
 436 {
 437         struct msg_arg *msg = opt->value;
 438
 439         BUG_ON_OPT_NEG(unset);
 440
 441         if (!arg)
 442                 return -1;
 443         if (msg->buf.len)
 444                 strbuf_addstr(&(msg->buf), "\n\n");
 445         strbuf_addstr(&(msg->buf), arg);
 446         msg->given = 1;
 447         return 0;
 448 }
 449
 450 static int strbuf_check_tag_ref(struct strbuf *sb, const char *name)
 451 {
 452         if (name[0] == '-')
 453                 return -1;
 454
 455         strbuf_reset(sb);
 456         strbuf_addf(sb, "refs/tags/%s", name);
 457
 458         return check_refname_format(sb->buf, 0);
 459 }
 460
 461 int cmd_tag(int argc,
 462             const char **argv,
 463             const char *prefix,
 464             struct repository *repo UNUSED)
 465 {
 466         struct strbuf buf = STRBUF_INIT;
 467         struct strbuf ref = STRBUF_INIT;
 468         struct strbuf reflog_msg = STRBUF_INIT;
 469         struct object_id object, prev;
 470         const char *object_ref, *tag;
 471         struct create_tag_options opt;
 472         char *cleanup_arg = NULL;
 473         int create_reflog = 0;
 474         int annotate = 0, force = 0;
 475         int cmdmode = 0, create_tag_object = 0;
 476         char *msgfile = NULL;
 477         const char *keyid = NULL;
 478         struct msg_arg msg = { .buf = STRBUF_INIT };
 479         struct ref_transaction *transaction;
 480         struct strbuf err = STRBUF_INIT;
 481         struct ref_filter filter = REF_FILTER_INIT;
 482         struct ref_sorting *sorting;
 483         struct string_list sorting_options = STRING_LIST_INIT_DUP;
 484         struct ref_format format = REF_FORMAT_INIT;
 485         struct strvec trailer_args = STRVEC_INIT;
 486         int icase = 0;
 487         int edit_flag = 0;
 488         struct option options[] = {
 489                 OPT_CMDMODE('l', "list", &cmdmode, N_("list tag names"), 'l'),
 490                 { OPTION_INTEGER, 'n', NULL, &filter.lines, N_("n"),
 491                                 N_("print <n> lines of each tag message"),
 492                                 PARSE_OPT_OPTARG, NULL, 1 },
 493                 OPT_CMDMODE('d', "delete", &cmdmode, N_("delete tags"), 'd'),
 494                 OPT_CMDMODE('v', "verify", &cmdmode, N_("verify tags"), 'v'),
 495
 496                 OPT_GROUP(N_("Tag creation options")),
 497                 OPT_BOOL('a', "annotate", &annotate,
 498                                         N_("annotated tag, needs a message")),
 499                 OPT_CALLBACK_F('m', "message", &msg, N_("message"),
 500                                N_("tag message"), PARSE_OPT_NONEG, parse_msg_arg),
 501                 OPT_FILENAME('F', "file", &msgfile, N_("read message from file")),
 502                 OPT_PASSTHRU_ARGV(0, "trailer", &trailer_args, N_("trailer"),
 503                                   N_("add custom trailer(s)"), PARSE_OPT_NONEG),
 504                 OPT_BOOL('e', "edit", &edit_flag, N_("force edit of tag message")),
 505                 OPT_BOOL('s', "sign", &opt.sign, N_("annotated and GPG-signed tag")),
 506                 OPT_CLEANUP(&cleanup_arg),
 507                 OPT_STRING('u', "local-user", &keyid, N_("key-id"),
 508                                         N_("use another key to sign the tag")),
 509                 OPT__FORCE(&force, N_("replace the tag if exists"), 0),
 510                 OPT_BOOL(0, "create-reflog", &create_reflog, N_("create a reflog")),
 511
 512                 OPT_GROUP(N_("Tag listing options")),
 513                 OPT_COLUMN(0, "column", &colopts, N_("show tag list in columns")),
 514                 OPT_CONTAINS(&filter.with_commit, N_("print only tags that contain the commit")),
 515                 OPT_NO_CONTAINS(&filter.no_commit, N_("print only tags that don't contain the commit")),
 516                 OPT_WITH(&filter.with_commit, N_("print only tags that contain the commit")),
 517                 OPT_WITHOUT(&filter.no_commit, N_("print only tags that don't contain the commit")),
 518                 OPT_MERGED(&filter, N_("print only tags that are merged")),
 519                 OPT_NO_MERGED(&filter, N_("print only tags that are not merged")),
 520                 OPT_BOOL(0, "omit-empty",  &format.array_opts.omit_empty,
 521                         N_("do not output a newline after empty formatted refs")),
 522                 OPT_REF_SORT(&sorting_options),
 523                 {
 524                         OPTION_CALLBACK, 0, "points-at", &filter.points_at, N_("object"),
 525                         N_("print only tags of the object"), PARSE_OPT_LASTARG_DEFAULT,
 526                         parse_opt_object_name, (intptr_t) "HEAD"
 527                 },
 528                 OPT_STRING(  0 , "format", &format.format, N_("format"),
 529                            N_("format to use for the output")),
 530                 OPT__COLOR(&format.use_color, N_("respect format colors")),
 531                 OPT_BOOL('i', "ignore-case", &icase, N_("sorting and filtering are case insensitive")),
 532                 OPT_END()
 533         };
 534         int ret = 0;
 535         const char *only_in_list = NULL;
 536         char *path = NULL;
 537
 538         setup_ref_filter_porcelain_msg();
 539
 540         /*
 541          * Try to set sort keys from config. If config does not set any,
 542          * fall back on default (refname) sorting.
 543          */
 544         git_config(git_tag_config, &sorting_options);
 545         if (!sorting_options.nr)
 546                 string_list_append(&sorting_options, "refname");
 547
 548         memset(&opt, 0, sizeof(opt));
 549         filter.lines = -1;
 550         opt.sign = -1;
 551
 552         argc = parse_options(argc, argv, prefix, options, git_tag_usage, 0);
 553
 554         if (!cmdmode) {
 555                 if (argc == 0)
 556                         cmdmode = 'l';
 557                 else if (filter.with_commit || filter.no_commit ||
 558                          filter.reachable_from || filter.unreachable_from ||
 559                          filter.points_at.nr || filter.lines != -1)
 560                         cmdmode = 'l';
 561         }
 562
 563         if (cmdmode == 'l')
 564                 setup_auto_pager("tag", 1);
 565
 566         if (opt.sign == -1)
 567                 opt.sign = cmdmode ? 0 : config_sign_tag > 0;
 568
 569         if (keyid) {
 570                 opt.sign = 1;
 571                 set_signing_key(keyid);
 572         }
 573         create_tag_object = (opt.sign || annotate || msg.given || msgfile ||
 574                              edit_flag || trailer_args.nr);
 575
 576         if ((create_tag_object || force) && (cmdmode != 0))
 577                 usage_with_options(git_tag_usage, options);
 578
 579         finalize_colopts(&colopts, -1);
 580         if (cmdmode == 'l' && filter.lines != -1) {
 581                 if (explicitly_enable_column(colopts))
 582                         die(_("options '%s' and '%s' cannot be used together"), "--column", "-n");
 583                 colopts = 0;
 584         }
 585         sorting = ref_sorting_options(&sorting_options);
 586         ref_sorting_set_sort_flags_all(sorting, REF_SORTING_ICASE, icase);
 587         filter.ignore_case = icase;
 588         if (cmdmode == 'l') {
 589                 if (column_active(colopts)) {
 590                         struct column_options copts;
 591                         memset(&copts, 0, sizeof(copts));
 592                         copts.padding = 2;
 593                         if (run_column_filter(colopts, &copts))
 594                                 die(_("could not start 'git column'"));
 595                 }
 596                 filter.name_patterns = argv;
 597                 ret = list_tags(&filter, sorting, &format);
 598                 if (column_active(colopts))
 599                         stop_column_filter();
 600                 goto cleanup;
 601         }
 602         if (filter.lines != -1)
 603                 only_in_list = "-n";
 604         else if (filter.with_commit)
 605                 only_in_list = "--contains";
 606         else if (filter.no_commit)
 607                 only_in_list = "--no-contains";
 608         else if (filter.points_at.nr)
 609                 only_in_list = "--points-at";
 610         else if (filter.reachable_from)
 611                 only_in_list = "--merged";
 612         else if (filter.unreachable_from)
 613                 only_in_list = "--no-merged";
 614         if (only_in_list)
 615                 die(_("the '%s' option is only allowed in list mode"), only_in_list);
 616         if (cmdmode == 'd') {
 617                 ret = delete_tags(argv);
 618                 goto cleanup;
 619         }
 620         if (cmdmode == 'v') {
 621                 if (format.format && verify_ref_format(&format))
 622                         usage_with_options(git_tag_usage, options);
 623                 ret = for_each_tag_name(argv, verify_tag, &format);
 624                 goto cleanup;
 625         }
 626
 627         if (msg.given || msgfile) {
 628                 if (msg.given && msgfile)
 629                         die(_("options '%s' and '%s' cannot be used together"), "-F", "-m");
 630                 if (msg.given)
 631                         strbuf_addbuf(&buf, &(msg.buf));
 632                 else {
 633                         if (!strcmp(msgfile, "-")) {
 634                                 if (strbuf_read(&buf, 0, 1024) < 0)
 635                                         die_errno(_("cannot read '%s'"), msgfile);
 636                         } else {
 637                                 if (strbuf_read_file(&buf, msgfile, 1024) < 0)
 638                                         die_errno(_("could not open or read '%s'"),
 639                                                 msgfile);
 640                         }
 641                 }
 642         }
 643
 644         tag = argv[0];
 645
 646         object_ref = argc == 2 ? argv[1] : "HEAD";
 647         if (argc > 2)
 648                 die(_("too many arguments"));
 649
 650         if (repo_get_oid(the_repository, object_ref, &object))
 651                 die(_("Failed to resolve '%s' as a valid ref."), object_ref);
 652
 653         if (strbuf_check_tag_ref(&ref, tag))
 654                 die(_("'%s' is not a valid tag name."), tag);
 655
 656         if (refs_read_ref(get_main_ref_store(the_repository), ref.buf, &prev))
 657                 oidclr(&prev, the_repository->hash_algo);
 658         else if (!force)
 659                 die(_("tag '%s' already exists"), tag);
 660
 661         opt.message_given = msg.given || msgfile;
 662         opt.use_editor = edit_flag;
 663
 664         if (!cleanup_arg || !strcmp(cleanup_arg, "strip"))
 665                 opt.cleanup_mode = CLEANUP_ALL;
 666         else if (!strcmp(cleanup_arg, "verbatim"))
 667                 opt.cleanup_mode = CLEANUP_NONE;
 668         else if (!strcmp(cleanup_arg, "whitespace"))
 669                 opt.cleanup_mode = CLEANUP_SPACE;
 670         else
 671                 die(_("Invalid cleanup mode %s"), cleanup_arg);
 672
 673         create_reflog_msg(&object, &reflog_msg);
 674
 675         if (create_tag_object) {
 676                 if (force_sign_annotate && !annotate)
 677                         opt.sign = 1;
 678                 path = git_pathdup("TAG_EDITMSG");
 679                 create_tag(&object, object_ref, tag, &buf, &opt, &prev, &object,
 680                            &trailer_args, path);
 681         }
 682
 683         transaction = ref_store_transaction_begin(get_main_ref_store(the_repository),
 684                                                   &err);
 685         if (!transaction ||
 686             ref_transaction_update(transaction, ref.buf, &object, &prev,
 687                                    NULL, NULL,
 688                                    create_reflog ? REF_FORCE_CREATE_REFLOG : 0,
 689                                    reflog_msg.buf, &err) ||
 690             ref_transaction_commit(transaction, &err)) {
 691                 if (path)
 692                         fprintf(stderr,
 693                                 _("The tag message has been left in %s\n"),
 694                                 path);
 695                 die("%s", err.buf);
 696         }
 697         if (path) {
 698                 unlink_or_warn(path);
 699                 free(path);
 700         }
 701         ref_transaction_free(transaction);
 702         if (force && !is_null_oid(&prev) && !oideq(&prev, &object))
 703                 printf(_("Updated tag '%s' (was %s)\n"), tag,
 704                        repo_find_unique_abbrev(the_repository, &prev, DEFAULT_ABBREV));
 705
 706 cleanup:
 707         ref_sorting_release(sorting);
 708         ref_filter_clear(&filter);
 709         ref_format_clear(&format);
 710         strbuf_release(&buf);
 711         strbuf_release(&ref);
 712         strbuf_release(&reflog_msg);
 713         strbuf_release(&msg.buf);
 714         strbuf_release(&err);
 715         strvec_clear(&trailer_args);
 716         free(msgfile);
 717         return ret;
 718 }