builtin/push.c

   1 /*
   2  * "git push"
   3  */
   4 #include "cache.h"
   5 #include "config.h"
   6 #include "refs.h"
   7 #include "run-command.h"
   8 #include "builtin.h"
   9 #include "remote.h"
  10 #include "transport.h"
  11 #include "parse-options.h"
  12 #include "submodule.h"
  13 #include "submodule-config.h"
  14 #include "send-pack.h"
  15 #include "color.h"
  16
  17 static const char * const push_usage[] = {
  18         N_("git push [<options>] [<repository> [<refspec>...]]"),
  19         NULL,
  20 };
  21
  22 static int push_use_color = -1;
  23 static char push_colors[][COLOR_MAXLEN] = {
  24         GIT_COLOR_RESET,
  25         GIT_COLOR_RED,  /* ERROR */
  26 };
  27
  28 enum color_push {
  29         PUSH_COLOR_RESET = 0,
  30         PUSH_COLOR_ERROR = 1
  31 };
  32
  33 static int parse_push_color_slot(const char *slot)
  34 {
  35         if (!strcasecmp(slot, "reset"))
  36                 return PUSH_COLOR_RESET;
  37         if (!strcasecmp(slot, "error"))
  38                 return PUSH_COLOR_ERROR;
  39         return -1;
  40 }
  41
  42 static const char *push_get_color(enum color_push ix)
  43 {
  44         if (want_color_stderr(push_use_color))
  45                 return push_colors[ix];
  46         return "";
  47 }
  48
  49 static int thin = 1;
  50 static int deleterefs;
  51 static const char *receivepack;
  52 static int verbosity;
  53 static int progress = -1;
  54 static int recurse_submodules = RECURSE_SUBMODULES_DEFAULT;
  55 static enum transport_family family;
  56
  57 static struct push_cas_option cas;
  58
  59 static const char **refspec;
  60 static int refspec_nr;
  61 static int refspec_alloc;
  62
  63 static struct string_list push_options_config = STRING_LIST_INIT_DUP;
  64
  65 static void add_refspec(const char *ref)
  66 {
  67         refspec_nr++;
  68         ALLOC_GROW(refspec, refspec_nr, refspec_alloc);
  69         refspec[refspec_nr-1] = ref;
  70 }
  71
  72 static const char *map_refspec(const char *ref,
  73                                struct remote *remote, struct ref *local_refs)
  74 {
  75         struct ref *matched = NULL;
  76
  77         /* Does "ref" uniquely name our ref? */
  78         if (count_refspec_match(ref, local_refs, &matched) != 1)
  79                 return ref;
  80
  81         if (remote->push) {
  82                 struct refspec query;
  83                 memset(&query, 0, sizeof(struct refspec));
  84                 query.src = matched->name;
  85                 if (!query_refspecs(remote->push, remote->push_refspec_nr, &query) &&
  86                     query.dst) {
  87                         struct strbuf buf = STRBUF_INIT;
  88                         strbuf_addf(&buf, "%s%s:%s",
  89                                     query.force ? "+" : "",
  90                                     query.src, query.dst);
  91                         return strbuf_detach(&buf, NULL);
  92                 }
  93         }
  94
  95         if (push_default == PUSH_DEFAULT_UPSTREAM &&
  96             starts_with(matched->name, "refs/heads/")) {
  97                 struct branch *branch = branch_get(matched->name + 11);
  98                 if (branch->merge_nr == 1 && branch->merge[0]->src) {
  99                         struct strbuf buf = STRBUF_INIT;
 100                         strbuf_addf(&buf, "%s:%s",
 101                                     ref, branch->merge[0]->src);
 102                         return strbuf_detach(&buf, NULL);
 103                 }
 104         }
 105
 106         return ref;
 107 }
 108
 109 static void set_refspecs(const char **refs, int nr, const char *repo)
 110 {
 111         struct remote *remote = NULL;
 112         struct ref *local_refs = NULL;
 113         int i;
 114
 115         for (i = 0; i < nr; i++) {
 116                 const char *ref = refs[i];
 117                 if (!strcmp("tag", ref)) {
 118                         struct strbuf tagref = STRBUF_INIT;
 119                         if (nr <= ++i)
 120                                 die(_("tag shorthand without <tag>"));
 121                         ref = refs[i];
 122                         if (deleterefs)
 123                                 strbuf_addf(&tagref, ":refs/tags/%s", ref);
 124                         else
 125                                 strbuf_addf(&tagref, "refs/tags/%s", ref);
 126                         ref = strbuf_detach(&tagref, NULL);
 127                 } else if (deleterefs) {
 128                         struct strbuf delref = STRBUF_INIT;
 129                         if (strchr(ref, ':'))
 130                                 die(_("--delete only accepts plain target ref names"));
 131                         strbuf_addf(&delref, ":%s", ref);
 132                         ref = strbuf_detach(&delref, NULL);
 133                 } else if (!strchr(ref, ':')) {
 134                         if (!remote) {
 135                                 /* lazily grab remote and local_refs */
 136                                 remote = remote_get(repo);
 137                                 local_refs = get_local_heads();
 138                         }
 139                         ref = map_refspec(ref, remote, local_refs);
 140                 }
 141                 add_refspec(ref);
 142         }
 143 }
 144
 145 static int push_url_of_remote(struct remote *remote, const char ***url_p)
 146 {
 147         if (remote->pushurl_nr) {
 148                 *url_p = remote->pushurl;
 149                 return remote->pushurl_nr;
 150         }
 151         *url_p = remote->url;
 152         return remote->url_nr;
 153 }
 154
 155 static NORETURN int die_push_simple(struct branch *branch, struct remote *remote) {
 156         /*
 157          * There's no point in using shorten_unambiguous_ref here,
 158          * as the ambiguity would be on the remote side, not what
 159          * we have locally. Plus, this is supposed to be the simple
 160          * mode. If the user is doing something crazy like setting
 161          * upstream to a non-branch, we should probably be showing
 162          * them the big ugly fully qualified ref.
 163          */
 164         const char *advice_maybe = "";
 165         const char *short_upstream = branch->merge[0]->src;
 166
 167         skip_prefix(short_upstream, "refs/heads/", &short_upstream);
 168
 169         /*
 170          * Don't show advice for people who explicitly set
 171          * push.default.
 172          */
 173         if (push_default == PUSH_DEFAULT_UNSPECIFIED)
 174                 advice_maybe = _("\n"
 175                                  "To choose either option permanently, "
 176                                  "see push.default in 'git help config'.");
 177         die(_("The upstream branch of your current branch does not match\n"
 178               "the name of your current branch.  To push to the upstream branch\n"
 179               "on the remote, use\n"
 180               "\n"
 181               "    git push %s HEAD:%s\n"
 182               "\n"
 183               "To push to the branch of the same name on the remote, use\n"
 184               "\n"
 185               "    git push %s %s\n"
 186               "%s"),
 187             remote->name, short_upstream,
 188             remote->name, branch->name, advice_maybe);
 189 }
 190
 191 static const char message_detached_head_die[] =
 192         N_("You are not currently on a branch.\n"
 193            "To push the history leading to the current (detached HEAD)\n"
 194            "state now, use\n"
 195            "\n"
 196            "    git push %s HEAD:<name-of-remote-branch>\n");
 197
 198 static void setup_push_upstream(struct remote *remote, struct branch *branch,
 199                                 int triangular, int simple)
 200 {
 201         struct strbuf refspec = STRBUF_INIT;
 202
 203         if (!branch)
 204                 die(_(message_detached_head_die), remote->name);
 205         if (!branch->merge_nr || !branch->merge || !branch->remote_name)
 206                 die(_("The current branch %s has no upstream branch.\n"
 207                     "To push the current branch and set the remote as upstream, use\n"
 208                     "\n"
 209                     "    git push --set-upstream %s %s\n"),
 210                     branch->name,
 211                     remote->name,
 212                     branch->name);
 213         if (branch->merge_nr != 1)
 214                 die(_("The current branch %s has multiple upstream branches, "
 215                     "refusing to push."), branch->name);
 216         if (triangular)
 217                 die(_("You are pushing to remote '%s', which is not the upstream of\n"
 218                       "your current branch '%s', without telling me what to push\n"
 219                       "to update which remote branch."),
 220                     remote->name, branch->name);
 221
 222         if (simple) {
 223                 /* Additional safety */
 224                 if (strcmp(branch->refname, branch->merge[0]->src))
 225                         die_push_simple(branch, remote);
 226         }
 227
 228         strbuf_addf(&refspec, "%s:%s", branch->refname, branch->merge[0]->src);
 229         add_refspec(refspec.buf);
 230 }
 231
 232 static void setup_push_current(struct remote *remote, struct branch *branch)
 233 {
 234         struct strbuf refspec = STRBUF_INIT;
 235
 236         if (!branch)
 237                 die(_(message_detached_head_die), remote->name);
 238         strbuf_addf(&refspec, "%s:%s", branch->refname, branch->refname);
 239         add_refspec(refspec.buf);
 240 }
 241
 242 static int is_workflow_triangular(struct remote *remote)
 243 {
 244         struct remote *fetch_remote = remote_get(NULL);
 245         return (fetch_remote && fetch_remote != remote);
 246 }
 247
 248 static void setup_default_push_refspecs(struct remote *remote)
 249 {
 250         struct branch *branch = branch_get(NULL);
 251         int triangular = is_workflow_triangular(remote);
 252
 253         switch (push_default) {
 254         default:
 255         case PUSH_DEFAULT_MATCHING:
 256                 add_refspec(":");
 257                 break;
 258
 259         case PUSH_DEFAULT_UNSPECIFIED:
 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                 fprintf(stderr, "%s", push_get_color(PUSH_COLOR_ERROR));
 370                 error(_("failed to push some refs to '%s'"), transport->url);
 371                 fprintf(stderr, "%s", push_get_color(PUSH_COLOR_RESET));
 372         }
 373
 374         err |= transport_disconnect(transport);
 375         if (!err)
 376                 return 0;
 377
 378         if (reject_reasons & REJECT_NON_FF_HEAD) {
 379                 advise_pull_before_push();
 380         } else if (reject_reasons & REJECT_NON_FF_OTHER) {
 381                 advise_checkout_pull_push();
 382         } else if (reject_reasons & REJECT_ALREADY_EXISTS) {
 383                 advise_ref_already_exists();
 384         } else if (reject_reasons & REJECT_FETCH_FIRST) {
 385                 advise_ref_fetch_first();
 386         } else if (reject_reasons & REJECT_NEEDS_FORCE) {
 387                 advise_ref_needs_force();
 388         }
 389
 390         return 1;
 391 }
 392
 393 static int do_push(const char *repo, int flags,
 394                    const struct string_list *push_options)
 395 {
 396         int i, errs;
 397         struct remote *remote = pushremote_get(repo);
 398         const char **url;
 399         int url_nr;
 400
 401         if (!remote) {
 402                 if (repo)
 403                         die(_("bad repository '%s'"), repo);
 404                 die(_("No configured push destination.\n"
 405                     "Either specify the URL from the command-line or configure a remote repository using\n"
 406                     "\n"
 407                     "    git remote add <name> <url>\n"
 408                     "\n"
 409                     "and then push using the remote name\n"
 410                     "\n"
 411                     "    git push <name>\n"));
 412         }
 413
 414         if (remote->mirror)
 415                 flags |= (TRANSPORT_PUSH_MIRROR|TRANSPORT_PUSH_FORCE);
 416
 417         if (push_options->nr)
 418                 flags |= TRANSPORT_PUSH_OPTIONS;
 419
 420         if ((flags & TRANSPORT_PUSH_ALL) && refspec) {
 421                 if (!strcmp(*refspec, "refs/tags/*"))
 422                         return error(_("--all and --tags are incompatible"));
 423                 return error(_("--all can't be combined with refspecs"));
 424         }
 425
 426         if ((flags & TRANSPORT_PUSH_MIRROR) && refspec) {
 427                 if (!strcmp(*refspec, "refs/tags/*"))
 428                         return error(_("--mirror and --tags are incompatible"));
 429                 return error(_("--mirror can't be combined with refspecs"));
 430         }
 431
 432         if ((flags & (TRANSPORT_PUSH_ALL|TRANSPORT_PUSH_MIRROR)) ==
 433                                 (TRANSPORT_PUSH_ALL|TRANSPORT_PUSH_MIRROR)) {
 434                 return error(_("--all and --mirror are incompatible"));
 435         }
 436
 437         if (!refspec && !(flags & TRANSPORT_PUSH_ALL)) {
 438                 if (remote->push_refspec_nr) {
 439                         refspec = remote->push_refspec;
 440                         refspec_nr = remote->push_refspec_nr;
 441                 } else if (!(flags & TRANSPORT_PUSH_MIRROR))
 442                         setup_default_push_refspecs(remote);
 443         }
 444         errs = 0;
 445         url_nr = push_url_of_remote(remote, &url);
 446         if (url_nr) {
 447                 for (i = 0; i < url_nr; i++) {
 448                         struct transport *transport =
 449                                 transport_get(remote, url[i]);
 450                         if (flags & TRANSPORT_PUSH_OPTIONS)
 451                                 transport->push_options = push_options;
 452                         if (push_with_options(transport, flags))
 453                                 errs++;
 454                 }
 455         } else {
 456                 struct transport *transport =
 457                         transport_get(remote, NULL);
 458                 if (flags & TRANSPORT_PUSH_OPTIONS)
 459                         transport->push_options = push_options;
 460                 if (push_with_options(transport, flags))
 461                         errs++;
 462         }
 463         return !!errs;
 464 }
 465
 466 static int option_parse_recurse_submodules(const struct option *opt,
 467                                    const char *arg, int unset)
 468 {
 469         int *recurse_submodules = opt->value;
 470
 471         if (unset)
 472                 *recurse_submodules = RECURSE_SUBMODULES_OFF;
 473         else if (arg)
 474                 *recurse_submodules = parse_push_recurse_submodules_arg(opt->long_name, arg);
 475         else
 476                 die("%s missing parameter", opt->long_name);
 477
 478         return 0;
 479 }
 480
 481 static void set_push_cert_flags(int *flags, int v)
 482 {
 483         switch (v) {
 484         case SEND_PACK_PUSH_CERT_NEVER:
 485                 *flags &= ~(TRANSPORT_PUSH_CERT_ALWAYS | TRANSPORT_PUSH_CERT_IF_ASKED);
 486                 break;
 487         case SEND_PACK_PUSH_CERT_ALWAYS:
 488                 *flags |= TRANSPORT_PUSH_CERT_ALWAYS;
 489                 *flags &= ~TRANSPORT_PUSH_CERT_IF_ASKED;
 490                 break;
 491         case SEND_PACK_PUSH_CERT_IF_ASKED:
 492                 *flags |= TRANSPORT_PUSH_CERT_IF_ASKED;
 493                 *flags &= ~TRANSPORT_PUSH_CERT_ALWAYS;
 494                 break;
 495         }
 496 }
 497
 498
 499 static int git_push_config(const char *k, const char *v, void *cb)
 500 {
 501         const char *slot_name;
 502         int *flags = cb;
 503         int status;
 504
 505         status = git_gpg_config(k, v, NULL);
 506         if (status)
 507                 return status;
 508
 509         if (!strcmp(k, "push.followtags")) {
 510                 if (git_config_bool(k, v))
 511                         *flags |= TRANSPORT_PUSH_FOLLOW_TAGS;
 512                 else
 513                         *flags &= ~TRANSPORT_PUSH_FOLLOW_TAGS;
 514                 return 0;
 515         } else if (!strcmp(k, "push.gpgsign")) {
 516                 const char *value;
 517                 if (!git_config_get_value("push.gpgsign", &value)) {
 518                         switch (git_parse_maybe_bool(value)) {
 519                         case 0:
 520                                 set_push_cert_flags(flags, SEND_PACK_PUSH_CERT_NEVER);
 521                                 break;
 522                         case 1:
 523                                 set_push_cert_flags(flags, SEND_PACK_PUSH_CERT_ALWAYS);
 524                                 break;
 525                         default:
 526                                 if (value && !strcasecmp(value, "if-asked"))
 527                                         set_push_cert_flags(flags, SEND_PACK_PUSH_CERT_IF_ASKED);
 528                                 else
 529                                         return error("Invalid value for '%s'", k);
 530                         }
 531                 }
 532         } else if (!strcmp(k, "push.recursesubmodules")) {
 533                 const char *value;
 534                 if (!git_config_get_value("push.recursesubmodules", &value))
 535                         recurse_submodules = parse_push_recurse_submodules_arg(k, value);
 536         } else if (!strcmp(k, "submodule.recurse")) {
 537                 int val = git_config_bool(k, v) ?
 538                         RECURSE_SUBMODULES_ON_DEMAND : RECURSE_SUBMODULES_OFF;
 539                 recurse_submodules = val;
 540         } else if (!strcmp(k, "push.pushoption")) {
 541                 if (!v)
 542                         return config_error_nonbool(k);
 543                 else
 544                         if (!*v)
 545                                 string_list_clear(&push_options_config, 0);
 546                         else
 547                                 string_list_append(&push_options_config, v);
 548                 return 0;
 549         } else if (!strcmp(k, "color.push")) {
 550                 push_use_color = git_config_colorbool(k, v);
 551                 return 0;
 552         } else if (skip_prefix(k, "color.push.", &slot_name)) {
 553                 int slot = parse_push_color_slot(slot_name);
 554                 if (slot < 0)
 555                         return 0;
 556                 if (!v)
 557                         return config_error_nonbool(k);
 558                 return color_parse(v, push_colors[slot]);
 559         }
 560
 561         return git_default_config(k, v, NULL);
 562 }
 563
 564 int cmd_push(int argc, const char **argv, const char *prefix)
 565 {
 566         int flags = 0;
 567         int tags = 0;
 568         int push_cert = -1;
 569         int rc;
 570         const char *repo = NULL;        /* default repository */
 571         struct string_list push_options_cmdline = STRING_LIST_INIT_DUP;
 572         struct string_list *push_options;
 573         const struct string_list_item *item;
 574
 575         struct option options[] = {
 576                 OPT__VERBOSITY(&verbosity),
 577                 OPT_STRING( 0 , "repo", &repo, N_("repository"), N_("repository")),
 578                 OPT_BIT( 0 , "all", &flags, N_("push all refs"), TRANSPORT_PUSH_ALL),
 579                 OPT_BIT( 0 , "mirror", &flags, N_("mirror all refs"),
 580                             (TRANSPORT_PUSH_MIRROR|TRANSPORT_PUSH_FORCE)),
 581                 OPT_BOOL('d', "delete", &deleterefs, N_("delete refs")),
 582                 OPT_BOOL( 0 , "tags", &tags, N_("push tags (can't be used with --all or --mirror)")),
 583                 OPT_BIT('n' , "dry-run", &flags, N_("dry run"), TRANSPORT_PUSH_DRY_RUN),
 584                 OPT_BIT( 0,  "porcelain", &flags, N_("machine-readable output"), TRANSPORT_PUSH_PORCELAIN),
 585                 OPT_BIT('f', "force", &flags, N_("force updates"), TRANSPORT_PUSH_FORCE),
 586                 { OPTION_CALLBACK,
 587                   0, CAS_OPT_NAME, &cas, N_("refname>:<expect"),
 588                   N_("require old value of ref to be at this value"),
 589                   PARSE_OPT_OPTARG, parseopt_push_cas_option },
 590                 { OPTION_CALLBACK, 0, "recurse-submodules", &recurse_submodules, "check|on-demand|no",
 591                         N_("control recursive pushing of submodules"),
 592                         PARSE_OPT_OPTARG, option_parse_recurse_submodules },
 593                 OPT_BOOL_F( 0 , "thin", &thin, N_("use thin pack"), PARSE_OPT_NOCOMPLETE),
 594                 OPT_STRING( 0 , "receive-pack", &receivepack, "receive-pack", N_("receive pack program")),
 595                 OPT_STRING( 0 , "exec", &receivepack, "receive-pack", N_("receive pack program")),
 596                 OPT_BIT('u', "set-upstream", &flags, N_("set upstream for git pull/status"),
 597                         TRANSPORT_PUSH_SET_UPSTREAM),
 598                 OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
 599                 OPT_BIT(0, "prune", &flags, N_("prune locally removed refs"),
 600                         TRANSPORT_PUSH_PRUNE),
 601                 OPT_BIT(0, "no-verify", &flags, N_("bypass pre-push hook"), TRANSPORT_PUSH_NO_HOOK),
 602                 OPT_BIT(0, "follow-tags", &flags, N_("push missing but relevant tags"),
 603                         TRANSPORT_PUSH_FOLLOW_TAGS),
 604                 { OPTION_CALLBACK,
 605                   0, "signed", &push_cert, "yes|no|if-asked", N_("GPG sign the push"),
 606                   PARSE_OPT_OPTARG, option_parse_push_signed },
 607                 OPT_BIT(0, "atomic", &flags, N_("request atomic transaction on remote side"), TRANSPORT_PUSH_ATOMIC),
 608                 OPT_STRING_LIST('o', "push-option", &push_options_cmdline, N_("server-specific"), N_("option to transmit")),
 609                 OPT_SET_INT('4', "ipv4", &family, N_("use IPv4 addresses only"),
 610                                 TRANSPORT_FAMILY_IPV4),
 611                 OPT_SET_INT('6', "ipv6", &family, N_("use IPv6 addresses only"),
 612                                 TRANSPORT_FAMILY_IPV6),
 613                 OPT_END()
 614         };
 615
 616         packet_trace_identity("push");
 617         git_config(git_push_config, &flags);
 618         argc = parse_options(argc, argv, prefix, options, push_usage, 0);
 619         push_options = (push_options_cmdline.nr
 620                 ? &push_options_cmdline
 621                 : &push_options_config);
 622         set_push_cert_flags(&flags, push_cert);
 623
 624         if (deleterefs && (tags || (flags & (TRANSPORT_PUSH_ALL | TRANSPORT_PUSH_MIRROR))))
 625                 die(_("--delete is incompatible with --all, --mirror and --tags"));
 626         if (deleterefs && argc < 2)
 627                 die(_("--delete doesn't make sense without any refs"));
 628
 629         if (recurse_submodules == RECURSE_SUBMODULES_CHECK)
 630                 flags |= TRANSPORT_RECURSE_SUBMODULES_CHECK;
 631         else if (recurse_submodules == RECURSE_SUBMODULES_ON_DEMAND)
 632                 flags |= TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND;
 633         else if (recurse_submodules == RECURSE_SUBMODULES_ONLY)
 634                 flags |= TRANSPORT_RECURSE_SUBMODULES_ONLY;
 635
 636         if (tags)
 637                 add_refspec("refs/tags/*");
 638
 639         if (argc > 0) {
 640                 repo = argv[0];
 641                 set_refspecs(argv + 1, argc - 1, repo);
 642         }
 643
 644         for_each_string_list_item(item, push_options)
 645                 if (strchr(item->string, '\n'))
 646                         die(_("push options must not have new line characters"));
 647
 648         rc = do_push(repo, flags, push_options);
 649         string_list_clear(&push_options_cmdline, 0);
 650         string_list_clear(&push_options_config, 0);
 651         if (rc == -1)
 652                 usage_with_options(push_usage, options);
 653         else
 654                 return rc;
 655 }