git.oblomov.eu Git - git/blob - builtin/push.c

   1 /*
   2  * "git push"
   3  */
   4 #include "cache.h"
   5 #include "refs.h"
   6 #include "run-command.h"
   7 #include "builtin.h"
   8 #include "remote.h"
   9 #include "transport.h"
  10 #include "parse-options.h"
  11 #include "submodule.h"
  12 #include "submodule-config.h"
  13 #include "send-pack.h"
  14
  15 static const char * const push_usage[] = {
  16         N_("git push [<options>] [<repository> [<refspec>...]]"),
  17         NULL,
  18 };
  19
  20 static int thin = 1;
  21 static int deleterefs;
  22 static const char *receivepack;
  23 static int verbosity;
  24 static int progress = -1;
  25 static int recurse_submodules = RECURSE_SUBMODULES_DEFAULT;
  26 static enum transport_family family;
  27
  28 static struct push_cas_option cas;
  29
  30 static const char **refspec;
  31 static int refspec_nr;
  32 static int refspec_alloc;
  33
  34 static void add_refspec(const char *ref)
  35 {
  36         refspec_nr++;
  37         ALLOC_GROW(refspec, refspec_nr, refspec_alloc);
  38         refspec[refspec_nr-1] = ref;
  39 }
  40
  41 static const char *map_refspec(const char *ref,
  42                                struct remote *remote, struct ref *local_refs)
  43 {
  44         struct ref *matched = NULL;
  45
  46         /* Does "ref" uniquely name our ref? */
  47         if (count_refspec_match(ref, local_refs, &matched) != 1)
  48                 return ref;
  49
  50         if (remote->push) {
  51                 struct refspec query;
  52                 memset(&query, 0, sizeof(struct refspec));
  53                 query.src = matched->name;
  54                 if (!query_refspecs(remote->push, remote->push_refspec_nr, &query) &&
  55                     query.dst) {
  56                         struct strbuf buf = STRBUF_INIT;
  57                         strbuf_addf(&buf, "%s%s:%s",
  58                                     query.force ? "+" : "",
  59                                     query.src, query.dst);
  60                         return strbuf_detach(&buf, NULL);
  61                 }
  62         }
  63
  64         if (push_default == PUSH_DEFAULT_UPSTREAM &&
  65             starts_with(matched->name, "refs/heads/")) {
  66                 struct branch *branch = branch_get(matched->name + 11);
  67                 if (branch->merge_nr == 1 && branch->merge[0]->src) {
  68                         struct strbuf buf = STRBUF_INIT;
  69                         strbuf_addf(&buf, "%s:%s",
  70                                     ref, branch->merge[0]->src);
  71                         return strbuf_detach(&buf, NULL);
  72                 }
  73         }
  74
  75         return ref;
  76 }
  77
  78 static void set_refspecs(const char **refs, int nr, const char *repo)
  79 {
  80         struct remote *remote = NULL;
  81         struct ref *local_refs = NULL;
  82         int i;
  83
  84         for (i = 0; i < nr; i++) {
  85                 const char *ref = refs[i];
  86                 if (!strcmp("tag", ref)) {
  87                         struct strbuf tagref = STRBUF_INIT;
  88                         if (nr <= ++i)
  89                                 die(_("tag shorthand without <tag>"));
  90                         ref = refs[i];
  91                         if (deleterefs)
  92                                 strbuf_addf(&tagref, ":refs/tags/%s", ref);
  93                         else
  94                                 strbuf_addf(&tagref, "refs/tags/%s", ref);
  95                         ref = strbuf_detach(&tagref, NULL);
  96                 } else if (deleterefs) {
  97                         struct strbuf delref = STRBUF_INIT;
  98                         if (strchr(ref, ':'))
  99                                 die(_("--delete only accepts plain target ref names"));
 100                         strbuf_addf(&delref, ":%s", ref);
 101                         ref = strbuf_detach(&delref, NULL);
 102                 } else if (!strchr(ref, ':')) {
 103                         if (!remote) {
 104                                 /* lazily grab remote and local_refs */
 105                                 remote = remote_get(repo);
 106                                 local_refs = get_local_heads();
 107                         }
 108                         ref = map_refspec(ref, remote, local_refs);
 109                 }
 110                 add_refspec(ref);
 111         }
 112 }
 113
 114 static int push_url_of_remote(struct remote *remote, const char ***url_p)
 115 {
 116         if (remote->pushurl_nr) {
 117                 *url_p = remote->pushurl;
 118                 return remote->pushurl_nr;
 119         }
 120         *url_p = remote->url;
 121         return remote->url_nr;
 122 }
 123
 124 static NORETURN int die_push_simple(struct branch *branch, struct remote *remote) {
 125         /*
 126          * There's no point in using shorten_unambiguous_ref here,
 127          * as the ambiguity would be on the remote side, not what
 128          * we have locally. Plus, this is supposed to be the simple
 129          * mode. If the user is doing something crazy like setting
 130          * upstream to a non-branch, we should probably be showing
 131          * them the big ugly fully qualified ref.
 132          */
 133         const char *advice_maybe = "";
 134         const char *short_upstream = branch->merge[0]->src;
 135
 136         skip_prefix(short_upstream, "refs/heads/", &short_upstream);
 137
 138         /*
 139          * Don't show advice for people who explicitly set
 140          * push.default.
 141          */
 142         if (push_default == PUSH_DEFAULT_UNSPECIFIED)
 143                 advice_maybe = _("\n"
 144                                  "To choose either option permanently, "
 145                                  "see push.default in 'git help config'.");
 146         die(_("The upstream branch of your current branch does not match\n"
 147               "the name of your current branch.  To push to the upstream branch\n"
 148               "on the remote, use\n"
 149               "\n"
 150               "    git push %s HEAD:%s\n"
 151               "\n"
 152               "To push to the branch of the same name on the remote, use\n"
 153               "\n"
 154               "    git push %s %s\n"
 155               "%s"),
 156             remote->name, short_upstream,
 157             remote->name, branch->name, advice_maybe);
 158 }
 159
 160 static const char message_detached_head_die[] =
 161         N_("You are not currently on a branch.\n"
 162            "To push the history leading to the current (detached HEAD)\n"
 163            "state now, use\n"
 164            "\n"
 165            "    git push %s HEAD:<name-of-remote-branch>\n");
 166
 167 static void setup_push_upstream(struct remote *remote, struct branch *branch,
 168                                 int triangular, int simple)
 169 {
 170         struct strbuf refspec = STRBUF_INIT;
 171
 172         if (!branch)
 173                 die(_(message_detached_head_die), remote->name);
 174         if (!branch->merge_nr || !branch->merge || !branch->remote_name)
 175                 die(_("The current branch %s has no upstream branch.\n"
 176                     "To push the current branch and set the remote as upstream, use\n"
 177                     "\n"
 178                     "    git push --set-upstream %s %s\n"),
 179                     branch->name,
 180                     remote->name,
 181                     branch->name);
 182         if (branch->merge_nr != 1)
 183                 die(_("The current branch %s has multiple upstream branches, "
 184                     "refusing to push."), branch->name);
 185         if (triangular)
 186                 die(_("You are pushing to remote '%s', which is not the upstream of\n"
 187                       "your current branch '%s', without telling me what to push\n"
 188                       "to update which remote branch."),
 189                     remote->name, branch->name);
 190
 191         if (simple) {
 192                 /* Additional safety */
 193                 if (strcmp(branch->refname, branch->merge[0]->src))
 194                         die_push_simple(branch, remote);
 195         }
 196
 197         strbuf_addf(&refspec, "%s:%s", branch->name, branch->merge[0]->src);
 198         add_refspec(refspec.buf);
 199 }
 200
 201 static void setup_push_current(struct remote *remote, struct branch *branch)
 202 {
 203         if (!branch)
 204                 die(_(message_detached_head_die), remote->name);
 205         add_refspec(branch->name);
 206 }
 207
 208 static char warn_unspecified_push_default_msg[] =
 209 N_("push.default is unset; its implicit value has changed in\n"
 210    "Git 2.0 from 'matching' to 'simple'. To squelch this message\n"
 211    "and maintain the traditional behavior, use:\n"
 212    "\n"
 213    "  git config --global push.default matching\n"
 214    "\n"
 215    "To squelch this message and adopt the new behavior now, use:\n"
 216    "\n"
 217    "  git config --global push.default simple\n"
 218    "\n"
 219    "When push.default is set to 'matching', git will push local branches\n"
 220    "to the remote branches that already exist with the same name.\n"
 221    "\n"
 222    "Since Git 2.0, Git defaults to the more conservative 'simple'\n"
 223    "behavior, which only pushes the current branch to the corresponding\n"
 224    "remote branch that 'git pull' uses to update the current branch.\n"
 225    "\n"
 226    "See 'git help config' and search for 'push.default' for further information.\n"
 227    "(the 'simple' mode was introduced in Git 1.7.11. Use the similar mode\n"
 228    "'current' instead of 'simple' if you sometimes use older versions of Git)");
 229
 230 static void warn_unspecified_push_default_configuration(void)
 231 {
 232         static int warn_once;
 233
 234         if (warn_once++)
 235                 return;
 236         warning("%s\n", _(warn_unspecified_push_default_msg));
 237 }
 238
 239 static int is_workflow_triangular(struct remote *remote)
 240 {
 241         struct remote *fetch_remote = remote_get(NULL);
 242         return (fetch_remote && fetch_remote != remote);
 243 }
 244
 245 static void setup_default_push_refspecs(struct remote *remote)
 246 {
 247         struct branch *branch = branch_get(NULL);
 248         int triangular = is_workflow_triangular(remote);
 249
 250         switch (push_default) {
 251         default:
 252         case PUSH_DEFAULT_MATCHING:
 253                 add_refspec(":");
 254                 break;
 255
 256         case PUSH_DEFAULT_UNSPECIFIED:
 257                 warn_unspecified_push_default_configuration();
 258                 /* fallthru */
 259
 260         case PUSH_DEFAULT_SIMPLE:
 261                 if (triangular)
 262                         setup_push_current(remote, branch);
 263                 else
 264                         setup_push_upstream(remote, branch, triangular, 1);
 265                 break;
 266
 267         case PUSH_DEFAULT_UPSTREAM:
 268                 setup_push_upstream(remote, branch, triangular, 0);
 269                 break;
 270
 271         case PUSH_DEFAULT_CURRENT:
 272                 setup_push_current(remote, branch);
 273                 break;
 274
 275         case PUSH_DEFAULT_NOTHING:
 276                 die(_("You didn't specify any refspecs to push, and "
 277                     "push.default is \"nothing\"."));
 278                 break;
 279         }
 280 }
 281
 282 static const char message_advice_pull_before_push[] =
 283         N_("Updates were rejected because the tip of your current branch is behind\n"
 284            "its remote counterpart. Integrate the remote changes (e.g.\n"
 285            "'git pull ...') before pushing again.\n"
 286            "See the 'Note about fast-forwards' in 'git push --help' for details.");
 287
 288 static const char message_advice_checkout_pull_push[] =
 289         N_("Updates were rejected because a pushed branch tip is behind its remote\n"
 290            "counterpart. Check out this branch and integrate the remote changes\n"
 291            "(e.g. 'git pull ...') before pushing again.\n"
 292            "See the 'Note about fast-forwards' in 'git push --help' for details.");
 293
 294 static const char message_advice_ref_fetch_first[] =
 295         N_("Updates were rejected because the remote contains work that you do\n"
 296            "not have locally. This is usually caused by another repository pushing\n"
 297            "to the same ref. You may want to first integrate the remote changes\n"
 298            "(e.g., 'git pull ...') before pushing again.\n"
 299            "See the 'Note about fast-forwards' in 'git push --help' for details.");
 300
 301 static const char message_advice_ref_already_exists[] =
 302         N_("Updates were rejected because the tag already exists in the remote.");
 303
 304 static const char message_advice_ref_needs_force[] =
 305         N_("You cannot update a remote ref that points at a non-commit object,\n"
 306            "or update a remote ref to make it point at a non-commit object,\n"
 307            "without using the '--force' option.\n");
 308
 309 static void advise_pull_before_push(void)
 310 {
 311         if (!advice_push_non_ff_current || !advice_push_update_rejected)
 312                 return;
 313         advise(_(message_advice_pull_before_push));
 314 }
 315
 316 static void advise_checkout_pull_push(void)
 317 {
 318         if (!advice_push_non_ff_matching || !advice_push_update_rejected)
 319                 return;
 320         advise(_(message_advice_checkout_pull_push));
 321 }
 322
 323 static void advise_ref_already_exists(void)
 324 {
 325         if (!advice_push_already_exists || !advice_push_update_rejected)
 326                 return;
 327         advise(_(message_advice_ref_already_exists));
 328 }
 329
 330 static void advise_ref_fetch_first(void)
 331 {
 332         if (!advice_push_fetch_first || !advice_push_update_rejected)
 333                 return;
 334         advise(_(message_advice_ref_fetch_first));
 335 }
 336
 337 static void advise_ref_needs_force(void)
 338 {
 339         if (!advice_push_needs_force || !advice_push_update_rejected)
 340                 return;
 341         advise(_(message_advice_ref_needs_force));
 342 }
 343
 344 static int push_with_options(struct transport *transport, int flags)
 345 {
 346         int err;
 347         unsigned int reject_reasons;
 348
 349         transport_set_verbosity(transport, verbosity, progress);
 350         transport->family = family;
 351
 352         if (receivepack)
 353                 transport_set_option(transport,
 354                                      TRANS_OPT_RECEIVEPACK, receivepack);
 355         transport_set_option(transport, TRANS_OPT_THIN, thin ? "yes" : NULL);
 356
 357         if (!is_empty_cas(&cas)) {
 358                 if (!transport->smart_options)
 359                         die("underlying transport does not support --%s option",
 360                             CAS_OPT_NAME);
 361                 transport->smart_options->cas = &cas;
 362         }
 363
 364         if (verbosity > 0)
 365                 fprintf(stderr, _("Pushing to %s\n"), transport->url);
 366         err = transport_push(transport, refspec_nr, refspec, flags,
 367                              &reject_reasons);
 368         if (err != 0)
 369                 error(_("failed to push some refs to '%s'"), transport->url);
 370
 371         err |= transport_disconnect(transport);
 372         if (!err)
 373                 return 0;
 374
 375         if (reject_reasons & REJECT_NON_FF_HEAD) {
 376                 advise_pull_before_push();
 377         } else if (reject_reasons & REJECT_NON_FF_OTHER) {
 378                 advise_checkout_pull_push();
 379         } else if (reject_reasons & REJECT_ALREADY_EXISTS) {
 380                 advise_ref_already_exists();
 381         } else if (reject_reasons & REJECT_FETCH_FIRST) {
 382                 advise_ref_fetch_first();
 383         } else if (reject_reasons & REJECT_NEEDS_FORCE) {
 384                 advise_ref_needs_force();
 385         }
 386
 387         return 1;
 388 }
 389
 390 static int do_push(const char *repo, int flags)
 391 {
 392         int i, errs;
 393         struct remote *remote = pushremote_get(repo);
 394         const char **url;
 395         int url_nr;
 396
 397         if (!remote) {
 398                 if (repo)
 399                         die(_("bad repository '%s'"), repo);
 400                 die(_("No configured push destination.\n"
 401                     "Either specify the URL from the command-line or configure a remote repository using\n"
 402                     "\n"
 403                     "    git remote add <name> <url>\n"
 404                     "\n"
 405                     "and then push using the remote name\n"
 406                     "\n"
 407                     "    git push <name>\n"));
 408         }
 409
 410         if (remote->mirror)
 411                 flags |= (TRANSPORT_PUSH_MIRROR|TRANSPORT_PUSH_FORCE);
 412
 413         if ((flags & TRANSPORT_PUSH_ALL) && refspec) {
 414                 if (!strcmp(*refspec, "refs/tags/*"))
 415                         return error(_("--all and --tags are incompatible"));
 416                 return error(_("--all can't be combined with refspecs"));
 417         }
 418
 419         if ((flags & TRANSPORT_PUSH_MIRROR) && refspec) {
 420                 if (!strcmp(*refspec, "refs/tags/*"))
 421                         return error(_("--mirror and --tags are incompatible"));
 422                 return error(_("--mirror can't be combined with refspecs"));
 423         }
 424
 425         if ((flags & (TRANSPORT_PUSH_ALL|TRANSPORT_PUSH_MIRROR)) ==
 426                                 (TRANSPORT_PUSH_ALL|TRANSPORT_PUSH_MIRROR)) {
 427                 return error(_("--all and --mirror are incompatible"));
 428         }
 429
 430         if (!refspec && !(flags & TRANSPORT_PUSH_ALL)) {
 431                 if (remote->push_refspec_nr) {
 432                         refspec = remote->push_refspec;
 433                         refspec_nr = remote->push_refspec_nr;
 434                 } else if (!(flags & TRANSPORT_PUSH_MIRROR))
 435                         setup_default_push_refspecs(remote);
 436         }
 437         errs = 0;
 438         url_nr = push_url_of_remote(remote, &url);
 439         if (url_nr) {
 440                 for (i = 0; i < url_nr; i++) {
 441                         struct transport *transport =
 442                                 transport_get(remote, url[i]);
 443                         if (push_with_options(transport, flags))
 444                                 errs++;
 445                 }
 446         } else {
 447                 struct transport *transport =
 448                         transport_get(remote, NULL);
 449
 450                 if (push_with_options(transport, flags))
 451                         errs++;
 452         }
 453         return !!errs;
 454 }
 455
 456 static int option_parse_recurse_submodules(const struct option *opt,
 457                                    const char *arg, int unset)
 458 {
 459         int *recurse_submodules = opt->value;
 460
 461         if (unset)
 462                 *recurse_submodules = RECURSE_SUBMODULES_OFF;
 463         else if (arg)
 464                 *recurse_submodules = parse_push_recurse_submodules_arg(opt->long_name, arg);
 465         else
 466                 die("%s missing parameter", opt->long_name);
 467
 468         return 0;
 469 }
 470
 471 static void set_push_cert_flags(int *flags, int v)
 472 {
 473         switch (v) {
 474         case SEND_PACK_PUSH_CERT_NEVER:
 475                 *flags &= ~(TRANSPORT_PUSH_CERT_ALWAYS | TRANSPORT_PUSH_CERT_IF_ASKED);
 476                 break;
 477         case SEND_PACK_PUSH_CERT_ALWAYS:
 478                 *flags |= TRANSPORT_PUSH_CERT_ALWAYS;
 479                 *flags &= ~TRANSPORT_PUSH_CERT_IF_ASKED;
 480                 break;
 481         case SEND_PACK_PUSH_CERT_IF_ASKED:
 482                 *flags |= TRANSPORT_PUSH_CERT_IF_ASKED;
 483                 *flags &= ~TRANSPORT_PUSH_CERT_ALWAYS;
 484                 break;
 485         }
 486 }
 487
 488
 489 static int git_push_config(const char *k, const char *v, void *cb)
 490 {
 491         int *flags = cb;
 492         int status;
 493
 494         status = git_gpg_config(k, v, NULL);
 495         if (status)
 496                 return status;
 497
 498         if (!strcmp(k, "push.followtags")) {
 499                 if (git_config_bool(k, v))
 500                         *flags |= TRANSPORT_PUSH_FOLLOW_TAGS;
 501                 else
 502                         *flags &= ~TRANSPORT_PUSH_FOLLOW_TAGS;
 503                 return 0;
 504         } else if (!strcmp(k, "push.gpgsign")) {
 505                 const char *value;
 506                 if (!git_config_get_value("push.gpgsign", &value)) {
 507                         switch (git_config_maybe_bool("push.gpgsign", value)) {
 508                         case 0:
 509                                 set_push_cert_flags(flags, SEND_PACK_PUSH_CERT_NEVER);
 510                                 break;
 511                         case 1:
 512                                 set_push_cert_flags(flags, SEND_PACK_PUSH_CERT_ALWAYS);
 513                                 break;
 514                         default:
 515                                 if (value && !strcasecmp(value, "if-asked"))
 516                                         set_push_cert_flags(flags, SEND_PACK_PUSH_CERT_IF_ASKED);
 517                                 else
 518                                         return error("Invalid value for '%s'", k);
 519                         }
 520                 }
 521         } else if (!strcmp(k, "push.recursesubmodules")) {
 522                 const char *value;
 523                 if (!git_config_get_value("push.recursesubmodules", &value))
 524                         recurse_submodules = parse_push_recurse_submodules_arg(k, value);
 525         }
 526
 527         return git_default_config(k, v, NULL);
 528 }
 529
 530 int cmd_push(int argc, const char **argv, const char *prefix)
 531 {
 532         int flags = 0;
 533         int tags = 0;
 534         int push_cert = -1;
 535         int rc;
 536         const char *repo = NULL;        /* default repository */
 537         struct option options[] = {
 538                 OPT__VERBOSITY(&verbosity),
 539                 OPT_STRING( 0 , "repo", &repo, N_("repository"), N_("repository")),
 540                 OPT_BIT( 0 , "all", &flags, N_("push all refs"), TRANSPORT_PUSH_ALL),
 541                 OPT_BIT( 0 , "mirror", &flags, N_("mirror all refs"),
 542                             (TRANSPORT_PUSH_MIRROR|TRANSPORT_PUSH_FORCE)),
 543                 OPT_BOOL('d', "delete", &deleterefs, N_("delete refs")),
 544                 OPT_BOOL( 0 , "tags", &tags, N_("push tags (can't be used with --all or --mirror)")),
 545                 OPT_BIT('n' , "dry-run", &flags, N_("dry run"), TRANSPORT_PUSH_DRY_RUN),
 546                 OPT_BIT( 0,  "porcelain", &flags, N_("machine-readable output"), TRANSPORT_PUSH_PORCELAIN),
 547                 OPT_BIT('f', "force", &flags, N_("force updates"), TRANSPORT_PUSH_FORCE),
 548                 { OPTION_CALLBACK,
 549                   0, CAS_OPT_NAME, &cas, N_("refname>:<expect"),
 550                   N_("require old value of ref to be at this value"),
 551                   PARSE_OPT_OPTARG, parseopt_push_cas_option },
 552                 { OPTION_CALLBACK, 0, "recurse-submodules", &recurse_submodules, "check|on-demand|no",
 553                         N_("control recursive pushing of submodules"),
 554                         PARSE_OPT_OPTARG, option_parse_recurse_submodules },
 555                 OPT_BOOL( 0 , "thin", &thin, N_("use thin pack")),
 556                 OPT_STRING( 0 , "receive-pack", &receivepack, "receive-pack", N_("receive pack program")),
 557                 OPT_STRING( 0 , "exec", &receivepack, "receive-pack", N_("receive pack program")),
 558                 OPT_BIT('u', "set-upstream", &flags, N_("set upstream for git pull/status"),
 559                         TRANSPORT_PUSH_SET_UPSTREAM),
 560                 OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
 561                 OPT_BIT(0, "prune", &flags, N_("prune locally removed refs"),
 562                         TRANSPORT_PUSH_PRUNE),
 563                 OPT_BIT(0, "no-verify", &flags, N_("bypass pre-push hook"), TRANSPORT_PUSH_NO_HOOK),
 564                 OPT_BIT(0, "follow-tags", &flags, N_("push missing but relevant tags"),
 565                         TRANSPORT_PUSH_FOLLOW_TAGS),
 566                 { OPTION_CALLBACK,
 567                   0, "signed", &push_cert, "yes|no|if-asked", N_("GPG sign the push"),
 568                   PARSE_OPT_OPTARG, option_parse_push_signed },
 569                 OPT_BIT(0, "atomic", &flags, N_("request atomic transaction on remote side"), TRANSPORT_PUSH_ATOMIC),
 570                 OPT_SET_INT('4', "ipv4", &family, N_("use IPv4 addresses only"),
 571                                 TRANSPORT_FAMILY_IPV4),
 572                 OPT_SET_INT('6', "ipv6", &family, N_("use IPv6 addresses only"),
 573                                 TRANSPORT_FAMILY_IPV6),
 574                 OPT_END()
 575         };
 576
 577         packet_trace_identity("push");
 578         git_config(git_push_config, &flags);
 579         argc = parse_options(argc, argv, prefix, options, push_usage, 0);
 580         set_push_cert_flags(&flags, push_cert);
 581
 582         if (deleterefs && (tags || (flags & (TRANSPORT_PUSH_ALL | TRANSPORT_PUSH_MIRROR))))
 583                 die(_("--delete is incompatible with --all, --mirror and --tags"));
 584         if (deleterefs && argc < 2)
 585                 die(_("--delete doesn't make sense without any refs"));
 586
 587         if (recurse_submodules == RECURSE_SUBMODULES_CHECK)
 588                 flags |= TRANSPORT_RECURSE_SUBMODULES_CHECK;
 589         else if (recurse_submodules == RECURSE_SUBMODULES_ON_DEMAND)
 590                 flags |= TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND;
 591
 592         if (tags)
 593                 add_refspec("refs/tags/*");
 594
 595         if (argc > 0) {
 596                 repo = argv[0];
 597                 set_refspecs(argv + 1, argc - 1, repo);
 598         }
 599
 600         rc = do_push(repo, flags);
 601         if (rc == -1)
 602                 usage_with_options(push_usage, options);
 603         else
 604                 return rc;
 605 }