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