builtin-remote.c

   1 #include "cache.h"
   2 #include "parse-options.h"
   3 #include "transport.h"
   4 #include "remote.h"
   5 #include "string-list.h"
   6 #include "strbuf.h"
   7 #include "run-command.h"
   8 #include "refs.h"
   9
  10 static const char * const builtin_remote_usage[] = {
  11         "git remote [-v | --verbose]",
  12         "git remote add [-t <branch>] [-m <master>] [-f] [--mirror] <name> <url>",
  13         "git remote rename <old> <new>",
  14         "git remote rm <name>",
  15         "git remote set-head <name> (-a | -d | <branch>)",
  16         "git remote [-v | --verbose] show [-n] <name>",
  17         "git remote prune [-n | --dry-run] <name>",
  18         "git remote [-v | --verbose] update [-p | --prune] [group | remote]",
  19         NULL
  20 };
  21
  22 static const char * const builtin_remote_add_usage[] = {
  23         "git remote add [<options>] <name> <url>",
  24         NULL
  25 };
  26
  27 static const char * const builtin_remote_rename_usage[] = {
  28         "git remote rename <old> <new>",
  29         NULL
  30 };
  31
  32 static const char * const builtin_remote_rm_usage[] = {
  33         "git remote rm <name>",
  34         NULL
  35 };
  36
  37 static const char * const builtin_remote_sethead_usage[] = {
  38         "git remote set-head <name> (-a | -d | <branch>])",
  39         NULL
  40 };
  41
  42 static const char * const builtin_remote_show_usage[] = {
  43         "git remote show [<options>] <name>",
  44         NULL
  45 };
  46
  47 static const char * const builtin_remote_prune_usage[] = {
  48         "git remote prune [<options>] <name>",
  49         NULL
  50 };
  51
  52 static const char * const builtin_remote_update_usage[] = {
  53         "git remote update [<options>] [<group> | <remote>]...",
  54         NULL
  55 };
  56
  57 #define GET_REF_STATES (1<<0)
  58 #define GET_HEAD_NAMES (1<<1)
  59 #define GET_PUSH_REF_STATES (1<<2)
  60
  61 static int verbose;
  62
  63 static int show_all(void);
  64 static int prune_remote(const char *remote, int dry_run);
  65
  66 static inline int postfixcmp(const char *string, const char *postfix)
  67 {
  68         int len1 = strlen(string), len2 = strlen(postfix);
  69         if (len1 < len2)
  70                 return 1;
  71         return strcmp(string + len1 - len2, postfix);
  72 }
  73
  74 static int opt_parse_track(const struct option *opt, const char *arg, int not)
  75 {
  76         struct string_list *list = opt->value;
  77         if (not)
  78                 string_list_clear(list, 0);
  79         else
  80                 string_list_append(arg, list);
  81         return 0;
  82 }
  83
  84 static int fetch_remote(const char *name)
  85 {
  86         const char *argv[] = { "fetch", name, NULL, NULL };
  87         if (verbose) {
  88                 argv[1] = "-v";
  89                 argv[2] = name;
  90         }
  91         printf("Updating %s\n", name);
  92         if (run_command_v_opt(argv, RUN_GIT_CMD))
  93                 return error("Could not fetch %s", name);
  94         return 0;
  95 }
  96
  97 static int add(int argc, const char **argv)
  98 {
  99         int fetch = 0, mirror = 0;
 100         struct string_list track = { NULL, 0, 0 };
 101         const char *master = NULL;
 102         struct remote *remote;
 103         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
 104         const char *name, *url;
 105         int i;
 106
 107         struct option options[] = {
 108                 OPT_BOOLEAN('f', "fetch", &fetch, "fetch the remote branches"),
 109                 OPT_CALLBACK('t', "track", &track, "branch",
 110                         "branch(es) to track", opt_parse_track),
 111                 OPT_STRING('m', "master", &master, "branch", "master branch"),
 112                 OPT_BOOLEAN(0, "mirror", &mirror, "no separate remotes"),
 113                 OPT_END()
 114         };
 115
 116         argc = parse_options(argc, argv, NULL, options, builtin_remote_add_usage,
 117                              0);
 118
 119         if (argc < 2)
 120                 usage_with_options(builtin_remote_add_usage, options);
 121
 122         name = argv[0];
 123         url = argv[1];
 124
 125         remote = remote_get(name);
 126         if (remote && (remote->url_nr > 1 || strcmp(name, remote->url[0]) ||
 127                         remote->fetch_refspec_nr))
 128                 die("remote %s already exists.", name);
 129
 130         strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
 131         if (!valid_fetch_refspec(buf2.buf))
 132                 die("'%s' is not a valid remote name", name);
 133
 134         strbuf_addf(&buf, "remote.%s.url", name);
 135         if (git_config_set(buf.buf, url))
 136                 return 1;
 137
 138         strbuf_reset(&buf);
 139         strbuf_addf(&buf, "remote.%s.fetch", name);
 140
 141         if (track.nr == 0)
 142                 string_list_append("*", &track);
 143         for (i = 0; i < track.nr; i++) {
 144                 struct string_list_item *item = track.items + i;
 145
 146                 strbuf_reset(&buf2);
 147                 strbuf_addch(&buf2, '+');
 148                 if (mirror)
 149                         strbuf_addf(&buf2, "refs/%s:refs/%s",
 150                                         item->string, item->string);
 151                 else
 152                         strbuf_addf(&buf2, "refs/heads/%s:refs/remotes/%s/%s",
 153                                         item->string, name, item->string);
 154                 if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 155                         return 1;
 156         }
 157
 158         if (mirror) {
 159                 strbuf_reset(&buf);
 160                 strbuf_addf(&buf, "remote.%s.mirror", name);
 161                 if (git_config_set(buf.buf, "true"))
 162                         return 1;
 163         }
 164
 165         if (fetch && fetch_remote(name))
 166                 return 1;
 167
 168         if (master) {
 169                 strbuf_reset(&buf);
 170                 strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
 171
 172                 strbuf_reset(&buf2);
 173                 strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
 174
 175                 if (create_symref(buf.buf, buf2.buf, "remote add"))
 176                         return error("Could not setup master '%s'", master);
 177         }
 178
 179         strbuf_release(&buf);
 180         strbuf_release(&buf2);
 181         string_list_clear(&track, 0);
 182
 183         return 0;
 184 }
 185
 186 struct branch_info {
 187         char *remote_name;
 188         struct string_list merge;
 189         int rebase;
 190 };
 191
 192 static struct string_list branch_list;
 193
 194 static const char *abbrev_ref(const char *name, const char *prefix)
 195 {
 196         const char *abbrev = skip_prefix(name, prefix);
 197         if (abbrev)
 198                 return abbrev;
 199         return name;
 200 }
 201 #define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 202
 203 static int config_read_branches(const char *key, const char *value, void *cb)
 204 {
 205         if (!prefixcmp(key, "branch.")) {
 206                 const char *orig_key = key;
 207                 char *name;
 208                 struct string_list_item *item;
 209                 struct branch_info *info;
 210                 enum { REMOTE, MERGE, REBASE } type;
 211
 212                 key += 7;
 213                 if (!postfixcmp(key, ".remote")) {
 214                         name = xstrndup(key, strlen(key) - 7);
 215                         type = REMOTE;
 216                 } else if (!postfixcmp(key, ".merge")) {
 217                         name = xstrndup(key, strlen(key) - 6);
 218                         type = MERGE;
 219                 } else if (!postfixcmp(key, ".rebase")) {
 220                         name = xstrndup(key, strlen(key) - 7);
 221                         type = REBASE;
 222                 } else
 223                         return 0;
 224
 225                 item = string_list_insert(name, &branch_list);
 226
 227                 if (!item->util)
 228                         item->util = xcalloc(sizeof(struct branch_info), 1);
 229                 info = item->util;
 230                 if (type == REMOTE) {
 231                         if (info->remote_name)
 232                                 warning("more than one %s", orig_key);
 233                         info->remote_name = xstrdup(value);
 234                 } else if (type == MERGE) {
 235                         char *space = strchr(value, ' ');
 236                         value = abbrev_branch(value);
 237                         while (space) {
 238                                 char *merge;
 239                                 merge = xstrndup(value, space - value);
 240                                 string_list_append(merge, &info->merge);
 241                                 value = abbrev_branch(space + 1);
 242                                 space = strchr(value, ' ');
 243                         }
 244                         string_list_append(xstrdup(value), &info->merge);
 245                 } else
 246                         info->rebase = git_config_bool(orig_key, value);
 247         }
 248         return 0;
 249 }
 250
 251 static void read_branches(void)
 252 {
 253         if (branch_list.nr)
 254                 return;
 255         git_config(config_read_branches, NULL);
 256 }
 257
 258 struct ref_states {
 259         struct remote *remote;
 260         struct string_list new, stale, tracked, heads, push;
 261         int queried;
 262 };
 263
 264 static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 265 {
 266         struct ref *fetch_map = NULL, **tail = &fetch_map;
 267         struct ref *ref, *stale_refs;
 268         int i;
 269
 270         for (i = 0; i < states->remote->fetch_refspec_nr; i++)
 271                 if (get_fetch_map(remote_refs, states->remote->fetch + i, &tail, 1))
 272                         die("Could not get fetch map for refspec %s",
 273                                 states->remote->fetch_refspec[i]);
 274
 275         states->new.strdup_strings = states->tracked.strdup_strings = 1;
 276         for (ref = fetch_map; ref; ref = ref->next) {
 277                 unsigned char sha1[20];
 278                 if (!ref->peer_ref || read_ref(ref->peer_ref->name, sha1))
 279                         string_list_append(abbrev_branch(ref->name), &states->new);
 280                 else
 281                         string_list_append(abbrev_branch(ref->name), &states->tracked);
 282         }
 283         stale_refs = get_stale_heads(states->remote, fetch_map);
 284         for (ref = stale_refs; ref; ref = ref->next) {
 285                 struct string_list_item *item =
 286                         string_list_append(abbrev_branch(ref->name), &states->stale);
 287                 item->util = xstrdup(ref->name);
 288         }
 289         free_refs(stale_refs);
 290         free_refs(fetch_map);
 291
 292         sort_string_list(&states->new);
 293         sort_string_list(&states->tracked);
 294         sort_string_list(&states->stale);
 295
 296         return 0;
 297 }
 298
 299 struct push_info {
 300         char *dest;
 301         int forced;
 302         enum {
 303                 PUSH_STATUS_CREATE = 0,
 304                 PUSH_STATUS_DELETE,
 305                 PUSH_STATUS_UPTODATE,
 306                 PUSH_STATUS_FASTFORWARD,
 307                 PUSH_STATUS_OUTOFDATE,
 308                 PUSH_STATUS_NOTQUERIED,
 309         } status;
 310 };
 311
 312 static int get_push_ref_states(const struct ref *remote_refs,
 313         struct ref_states *states)
 314 {
 315         struct remote *remote = states->remote;
 316         struct ref *ref, *local_refs, *push_map;
 317         if (remote->mirror)
 318                 return 0;
 319
 320         local_refs = get_local_heads();
 321         push_map = copy_ref_list(remote_refs);
 322
 323         match_refs(local_refs, &push_map, remote->push_refspec_nr,
 324                    remote->push_refspec, MATCH_REFS_NONE);
 325
 326         states->push.strdup_strings = 1;
 327         for (ref = push_map; ref; ref = ref->next) {
 328                 struct string_list_item *item;
 329                 struct push_info *info;
 330
 331                 if (!ref->peer_ref)
 332                         continue;
 333                 hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
 334
 335                 item = string_list_append(abbrev_branch(ref->peer_ref->name),
 336                                           &states->push);
 337                 item->util = xcalloc(sizeof(struct push_info), 1);
 338                 info = item->util;
 339                 info->forced = ref->force;
 340                 info->dest = xstrdup(abbrev_branch(ref->name));
 341
 342                 if (is_null_sha1(ref->new_sha1)) {
 343                         info->status = PUSH_STATUS_DELETE;
 344                 } else if (!hashcmp(ref->old_sha1, ref->new_sha1))
 345                         info->status = PUSH_STATUS_UPTODATE;
 346                 else if (is_null_sha1(ref->old_sha1))
 347                         info->status = PUSH_STATUS_CREATE;
 348                 else if (has_sha1_file(ref->old_sha1) &&
 349                          ref_newer(ref->new_sha1, ref->old_sha1))
 350                         info->status = PUSH_STATUS_FASTFORWARD;
 351                 else
 352                         info->status = PUSH_STATUS_OUTOFDATE;
 353         }
 354         free_refs(local_refs);
 355         free_refs(push_map);
 356         return 0;
 357 }
 358
 359 static int get_push_ref_states_noquery(struct ref_states *states)
 360 {
 361         int i;
 362         struct remote *remote = states->remote;
 363         struct string_list_item *item;
 364         struct push_info *info;
 365
 366         if (remote->mirror)
 367                 return 0;
 368
 369         states->push.strdup_strings = 1;
 370         if (!remote->push_refspec_nr) {
 371                 item = string_list_append("(matching)", &states->push);
 372                 info = item->util = xcalloc(sizeof(struct push_info), 1);
 373                 info->status = PUSH_STATUS_NOTQUERIED;
 374                 info->dest = xstrdup(item->string);
 375         }
 376         for (i = 0; i < remote->push_refspec_nr; i++) {
 377                 struct refspec *spec = remote->push + i;
 378                 if (spec->matching)
 379                         item = string_list_append("(matching)", &states->push);
 380                 else if (strlen(spec->src))
 381                         item = string_list_append(spec->src, &states->push);
 382                 else
 383                         item = string_list_append("(delete)", &states->push);
 384
 385                 info = item->util = xcalloc(sizeof(struct push_info), 1);
 386                 info->forced = spec->force;
 387                 info->status = PUSH_STATUS_NOTQUERIED;
 388                 info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 389         }
 390         return 0;
 391 }
 392
 393 static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 394 {
 395         struct ref *ref, *matches;
 396         struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 397         struct refspec refspec;
 398
 399         refspec.force = 0;
 400         refspec.pattern = 1;
 401         refspec.src = refspec.dst = "refs/heads/*";
 402         states->heads.strdup_strings = 1;
 403         get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 404         matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 405                                     fetch_map, 1);
 406         for (ref = matches; ref; ref = ref->next)
 407                 string_list_append(abbrev_branch(ref->name), &states->heads);
 408
 409         free_refs(fetch_map);
 410         free_refs(matches);
 411
 412         return 0;
 413 }
 414
 415 struct known_remote {
 416         struct known_remote *next;
 417         struct remote *remote;
 418 };
 419
 420 struct known_remotes {
 421         struct remote *to_delete;
 422         struct known_remote *list;
 423 };
 424
 425 static int add_known_remote(struct remote *remote, void *cb_data)
 426 {
 427         struct known_remotes *all = cb_data;
 428         struct known_remote *r;
 429
 430         if (!strcmp(all->to_delete->name, remote->name))
 431                 return 0;
 432
 433         r = xmalloc(sizeof(*r));
 434         r->remote = remote;
 435         r->next = all->list;
 436         all->list = r;
 437         return 0;
 438 }
 439
 440 struct branches_for_remote {
 441         struct remote *remote;
 442         struct string_list *branches, *skipped;
 443         struct known_remotes *keep;
 444 };
 445
 446 static int add_branch_for_removal(const char *refname,
 447         const unsigned char *sha1, int flags, void *cb_data)
 448 {
 449         struct branches_for_remote *branches = cb_data;
 450         struct refspec refspec;
 451         struct string_list_item *item;
 452         struct known_remote *kr;
 453
 454         memset(&refspec, 0, sizeof(refspec));
 455         refspec.dst = (char *)refname;
 456         if (remote_find_tracking(branches->remote, &refspec))
 457                 return 0;
 458
 459         /* don't delete a branch if another remote also uses it */
 460         for (kr = branches->keep->list; kr; kr = kr->next) {
 461                 memset(&refspec, 0, sizeof(refspec));
 462                 refspec.dst = (char *)refname;
 463                 if (!remote_find_tracking(kr->remote, &refspec))
 464                         return 0;
 465         }
 466
 467         /* don't delete non-remote refs */
 468         if (prefixcmp(refname, "refs/remotes")) {
 469                 /* advise user how to delete local branches */
 470                 if (!prefixcmp(refname, "refs/heads/"))
 471                         string_list_append(abbrev_branch(refname),
 472                                            branches->skipped);
 473                 /* silently skip over other non-remote refs */
 474                 return 0;
 475         }
 476
 477         /* make sure that symrefs are deleted */
 478         if (flags & REF_ISSYMREF)
 479                 return unlink(git_path("%s", refname));
 480
 481         item = string_list_append(refname, branches->branches);
 482         item->util = xmalloc(20);
 483         hashcpy(item->util, sha1);
 484
 485         return 0;
 486 }
 487
 488 struct rename_info {
 489         const char *old;
 490         const char *new;
 491         struct string_list *remote_branches;
 492 };
 493
 494 static int read_remote_branches(const char *refname,
 495         const unsigned char *sha1, int flags, void *cb_data)
 496 {
 497         struct rename_info *rename = cb_data;
 498         struct strbuf buf = STRBUF_INIT;
 499         struct string_list_item *item;
 500         int flag;
 501         unsigned char orig_sha1[20];
 502         const char *symref;
 503
 504         strbuf_addf(&buf, "refs/remotes/%s", rename->old);
 505         if (!prefixcmp(refname, buf.buf)) {
 506                 item = string_list_append(xstrdup(refname), rename->remote_branches);
 507                 symref = resolve_ref(refname, orig_sha1, 1, &flag);
 508                 if (flag & REF_ISSYMREF)
 509                         item->util = xstrdup(symref);
 510                 else
 511                         item->util = NULL;
 512         }
 513
 514         return 0;
 515 }
 516
 517 static int migrate_file(struct remote *remote)
 518 {
 519         struct strbuf buf = STRBUF_INIT;
 520         int i;
 521         char *path = NULL;
 522
 523         strbuf_addf(&buf, "remote.%s.url", remote->name);
 524         for (i = 0; i < remote->url_nr; i++)
 525                 if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0))
 526                         return error("Could not append '%s' to '%s'",
 527                                         remote->url[i], buf.buf);
 528         strbuf_reset(&buf);
 529         strbuf_addf(&buf, "remote.%s.push", remote->name);
 530         for (i = 0; i < remote->push_refspec_nr; i++)
 531                 if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0))
 532                         return error("Could not append '%s' to '%s'",
 533                                         remote->push_refspec[i], buf.buf);
 534         strbuf_reset(&buf);
 535         strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 536         for (i = 0; i < remote->fetch_refspec_nr; i++)
 537                 if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0))
 538                         return error("Could not append '%s' to '%s'",
 539                                         remote->fetch_refspec[i], buf.buf);
 540         if (remote->origin == REMOTE_REMOTES)
 541                 path = git_path("remotes/%s", remote->name);
 542         else if (remote->origin == REMOTE_BRANCHES)
 543                 path = git_path("branches/%s", remote->name);
 544         if (path)
 545                 unlink_or_warn(path);
 546         return 0;
 547 }
 548
 549 static int mv(int argc, const char **argv)
 550 {
 551         struct option options[] = {
 552                 OPT_END()
 553         };
 554         struct remote *oldremote, *newremote;
 555         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT;
 556         struct string_list remote_branches = { NULL, 0, 0, 0 };
 557         struct rename_info rename;
 558         int i;
 559
 560         if (argc != 3)
 561                 usage_with_options(builtin_remote_rename_usage, options);
 562
 563         rename.old = argv[1];
 564         rename.new = argv[2];
 565         rename.remote_branches = &remote_branches;
 566
 567         oldremote = remote_get(rename.old);
 568         if (!oldremote)
 569                 die("No such remote: %s", rename.old);
 570
 571         if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
 572                 return migrate_file(oldremote);
 573
 574         newremote = remote_get(rename.new);
 575         if (newremote && (newremote->url_nr > 1 || newremote->fetch_refspec_nr))
 576                 die("remote %s already exists.", rename.new);
 577
 578         strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
 579         if (!valid_fetch_refspec(buf.buf))
 580                 die("'%s' is not a valid remote name", rename.new);
 581
 582         strbuf_reset(&buf);
 583         strbuf_addf(&buf, "remote.%s", rename.old);
 584         strbuf_addf(&buf2, "remote.%s", rename.new);
 585         if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 586                 return error("Could not rename config section '%s' to '%s'",
 587                                 buf.buf, buf2.buf);
 588
 589         strbuf_reset(&buf);
 590         strbuf_addf(&buf, "remote.%s.fetch", rename.new);
 591         if (git_config_set_multivar(buf.buf, NULL, NULL, 1))
 592                 return error("Could not remove config section '%s'", buf.buf);
 593         for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 594                 char *ptr;
 595
 596                 strbuf_reset(&buf2);
 597                 strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 598                 ptr = strstr(buf2.buf, rename.old);
 599                 if (ptr)
 600                         strbuf_splice(&buf2, ptr-buf2.buf, strlen(rename.old),
 601                                         rename.new, strlen(rename.new));
 602                 if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 603                         return error("Could not append '%s'", buf.buf);
 604         }
 605
 606         read_branches();
 607         for (i = 0; i < branch_list.nr; i++) {
 608                 struct string_list_item *item = branch_list.items + i;
 609                 struct branch_info *info = item->util;
 610                 if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 611                         strbuf_reset(&buf);
 612                         strbuf_addf(&buf, "branch.%s.remote", item->string);
 613                         if (git_config_set(buf.buf, rename.new)) {
 614                                 return error("Could not set '%s'", buf.buf);
 615                         }
 616                 }
 617         }
 618
 619         /*
 620          * First remove symrefs, then rename the rest, finally create
 621          * the new symrefs.
 622          */
 623         for_each_ref(read_remote_branches, &rename);
 624         for (i = 0; i < remote_branches.nr; i++) {
 625                 struct string_list_item *item = remote_branches.items + i;
 626                 int flag = 0;
 627                 unsigned char sha1[20];
 628
 629                 resolve_ref(item->string, sha1, 1, &flag);
 630                 if (!(flag & REF_ISSYMREF))
 631                         continue;
 632                 if (delete_ref(item->string, NULL, REF_NODEREF))
 633                         die("deleting '%s' failed", item->string);
 634         }
 635         for (i = 0; i < remote_branches.nr; i++) {
 636                 struct string_list_item *item = remote_branches.items + i;
 637
 638                 if (item->util)
 639                         continue;
 640                 strbuf_reset(&buf);
 641                 strbuf_addstr(&buf, item->string);
 642                 strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 643                                 rename.new, strlen(rename.new));
 644                 strbuf_reset(&buf2);
 645                 strbuf_addf(&buf2, "remote: renamed %s to %s",
 646                                 item->string, buf.buf);
 647                 if (rename_ref(item->string, buf.buf, buf2.buf))
 648                         die("renaming '%s' failed", item->string);
 649         }
 650         for (i = 0; i < remote_branches.nr; i++) {
 651                 struct string_list_item *item = remote_branches.items + i;
 652
 653                 if (!item->util)
 654                         continue;
 655                 strbuf_reset(&buf);
 656                 strbuf_addstr(&buf, item->string);
 657                 strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 658                                 rename.new, strlen(rename.new));
 659                 strbuf_reset(&buf2);
 660                 strbuf_addstr(&buf2, item->util);
 661                 strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
 662                                 rename.new, strlen(rename.new));
 663                 strbuf_reset(&buf3);
 664                 strbuf_addf(&buf3, "remote: renamed %s to %s",
 665                                 item->string, buf.buf);
 666                 if (create_symref(buf.buf, buf2.buf, buf3.buf))
 667                         die("creating '%s' failed", buf.buf);
 668         }
 669         return 0;
 670 }
 671
 672 static int remove_branches(struct string_list *branches)
 673 {
 674         int i, result = 0;
 675         for (i = 0; i < branches->nr; i++) {
 676                 struct string_list_item *item = branches->items + i;
 677                 const char *refname = item->string;
 678                 unsigned char *sha1 = item->util;
 679
 680                 if (delete_ref(refname, sha1, 0))
 681                         result |= error("Could not remove branch %s", refname);
 682         }
 683         return result;
 684 }
 685
 686 static int rm(int argc, const char **argv)
 687 {
 688         struct option options[] = {
 689                 OPT_END()
 690         };
 691         struct remote *remote;
 692         struct strbuf buf = STRBUF_INIT;
 693         struct known_remotes known_remotes = { NULL, NULL };
 694         struct string_list branches = { NULL, 0, 0, 1 };
 695         struct string_list skipped = { NULL, 0, 0, 1 };
 696         struct branches_for_remote cb_data = {
 697                 NULL, &branches, &skipped, &known_remotes
 698         };
 699         int i, result;
 700
 701         if (argc != 2)
 702                 usage_with_options(builtin_remote_rm_usage, options);
 703
 704         remote = remote_get(argv[1]);
 705         if (!remote)
 706                 die("No such remote: %s", argv[1]);
 707
 708         known_remotes.to_delete = remote;
 709         for_each_remote(add_known_remote, &known_remotes);
 710
 711         strbuf_addf(&buf, "remote.%s", remote->name);
 712         if (git_config_rename_section(buf.buf, NULL) < 1)
 713                 return error("Could not remove config section '%s'", buf.buf);
 714
 715         read_branches();
 716         for (i = 0; i < branch_list.nr; i++) {
 717                 struct string_list_item *item = branch_list.items + i;
 718                 struct branch_info *info = item->util;
 719                 if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 720                         const char *keys[] = { "remote", "merge", NULL }, **k;
 721                         for (k = keys; *k; k++) {
 722                                 strbuf_reset(&buf);
 723                                 strbuf_addf(&buf, "branch.%s.%s",
 724                                                 item->string, *k);
 725                                 if (git_config_set(buf.buf, NULL)) {
 726                                         strbuf_release(&buf);
 727                                         return -1;
 728                                 }
 729                         }
 730                 }
 731         }
 732
 733         /*
 734          * We cannot just pass a function to for_each_ref() which deletes
 735          * the branches one by one, since for_each_ref() relies on cached
 736          * refs, which are invalidated when deleting a branch.
 737          */
 738         cb_data.remote = remote;
 739         result = for_each_ref(add_branch_for_removal, &cb_data);
 740         strbuf_release(&buf);
 741
 742         if (!result)
 743                 result = remove_branches(&branches);
 744         string_list_clear(&branches, 1);
 745
 746         if (skipped.nr) {
 747                 fprintf(stderr, skipped.nr == 1 ?
 748                         "Note: A non-remote branch was not removed; "
 749                         "to delete it, use:\n" :
 750                         "Note: Non-remote branches were not removed; "
 751                         "to delete them, use:\n");
 752                 for (i = 0; i < skipped.nr; i++)
 753                         fprintf(stderr, "  git branch -d %s\n",
 754                                 skipped.items[i].string);
 755         }
 756         string_list_clear(&skipped, 0);
 757
 758         return result;
 759 }
 760
 761 static void clear_push_info(void *util, const char *string)
 762 {
 763         struct push_info *info = util;
 764         free(info->dest);
 765         free(info);
 766 }
 767
 768 static void free_remote_ref_states(struct ref_states *states)
 769 {
 770         string_list_clear(&states->new, 0);
 771         string_list_clear(&states->stale, 0);
 772         string_list_clear(&states->tracked, 0);
 773         string_list_clear(&states->heads, 0);
 774         string_list_clear_func(&states->push, clear_push_info);
 775 }
 776
 777 static int append_ref_to_tracked_list(const char *refname,
 778         const unsigned char *sha1, int flags, void *cb_data)
 779 {
 780         struct ref_states *states = cb_data;
 781         struct refspec refspec;
 782
 783         if (flags & REF_ISSYMREF)
 784                 return 0;
 785
 786         memset(&refspec, 0, sizeof(refspec));
 787         refspec.dst = (char *)refname;
 788         if (!remote_find_tracking(states->remote, &refspec))
 789                 string_list_append(abbrev_branch(refspec.src), &states->tracked);
 790
 791         return 0;
 792 }
 793
 794 static int get_remote_ref_states(const char *name,
 795                                  struct ref_states *states,
 796                                  int query)
 797 {
 798         struct transport *transport;
 799         const struct ref *remote_refs;
 800
 801         states->remote = remote_get(name);
 802         if (!states->remote)
 803                 return error("No such remote: %s", name);
 804
 805         read_branches();
 806
 807         if (query) {
 808                 transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 809                         states->remote->url[0] : NULL);
 810                 remote_refs = transport_get_remote_refs(transport);
 811                 transport_disconnect(transport);
 812
 813                 states->queried = 1;
 814                 if (query & GET_REF_STATES)
 815                         get_ref_states(remote_refs, states);
 816                 if (query & GET_HEAD_NAMES)
 817                         get_head_names(remote_refs, states);
 818                 if (query & GET_PUSH_REF_STATES)
 819                         get_push_ref_states(remote_refs, states);
 820         } else {
 821                 for_each_ref(append_ref_to_tracked_list, states);
 822                 sort_string_list(&states->tracked);
 823                 get_push_ref_states_noquery(states);
 824         }
 825
 826         return 0;
 827 }
 828
 829 struct show_info {
 830         struct string_list *list;
 831         struct ref_states *states;
 832         int width, width2;
 833         int any_rebase;
 834 };
 835
 836 static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 837 {
 838         struct show_info *info = cb_data;
 839         int n = strlen(item->string);
 840         if (n > info->width)
 841                 info->width = n;
 842         string_list_insert(item->string, info->list);
 843         return 0;
 844 }
 845
 846 static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 847 {
 848         struct show_info *info = cb_data;
 849         struct ref_states *states = info->states;
 850         const char *name = item->string;
 851
 852         if (states->queried) {
 853                 const char *fmt = "%s";
 854                 const char *arg = "";
 855                 if (string_list_has_string(&states->new, name)) {
 856                         fmt = " new (next fetch will store in remotes/%s)";
 857                         arg = states->remote->name;
 858                 } else if (string_list_has_string(&states->tracked, name))
 859                         arg = " tracked";
 860                 else if (string_list_has_string(&states->stale, name))
 861                         arg = " stale (use 'git remote prune' to remove)";
 862                 else
 863                         arg = " ???";
 864                 printf("    %-*s", info->width, name);
 865                 printf(fmt, arg);
 866                 printf("\n");
 867         } else
 868                 printf("    %s\n", name);
 869
 870         return 0;
 871 }
 872
 873 static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 874 {
 875         struct show_info *show_info = cb_data;
 876         struct ref_states *states = show_info->states;
 877         struct branch_info *branch_info = branch_item->util;
 878         struct string_list_item *item;
 879         int n;
 880
 881         if (!branch_info->merge.nr || !branch_info->remote_name ||
 882             strcmp(states->remote->name, branch_info->remote_name))
 883                 return 0;
 884         if ((n = strlen(branch_item->string)) > show_info->width)
 885                 show_info->width = n;
 886         if (branch_info->rebase)
 887                 show_info->any_rebase = 1;
 888
 889         item = string_list_insert(branch_item->string, show_info->list);
 890         item->util = branch_info;
 891
 892         return 0;
 893 }
 894
 895 static int show_local_info_item(struct string_list_item *item, void *cb_data)
 896 {
 897         struct show_info *show_info = cb_data;
 898         struct branch_info *branch_info = item->util;
 899         struct string_list *merge = &branch_info->merge;
 900         const char *also;
 901         int i;
 902
 903         if (branch_info->rebase && branch_info->merge.nr > 1) {
 904                 error("invalid branch.%s.merge; cannot rebase onto > 1 branch",
 905                         item->string);
 906                 return 0;
 907         }
 908
 909         printf("    %-*s ", show_info->width, item->string);
 910         if (branch_info->rebase) {
 911                 printf("rebases onto remote %s\n", merge->items[0].string);
 912                 return 0;
 913         } else if (show_info->any_rebase) {
 914                 printf(" merges with remote %s\n", merge->items[0].string);
 915                 also = "    and with remote";
 916         } else {
 917                 printf("merges with remote %s\n", merge->items[0].string);
 918                 also = "   and with remote";
 919         }
 920         for (i = 1; i < merge->nr; i++)
 921                 printf("    %-*s %s %s\n", show_info->width, "", also,
 922                        merge->items[i].string);
 923
 924         return 0;
 925 }
 926
 927 static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
 928 {
 929         struct show_info *show_info = cb_data;
 930         struct push_info *push_info = push_item->util;
 931         struct string_list_item *item;
 932         int n;
 933         if ((n = strlen(push_item->string)) > show_info->width)
 934                 show_info->width = n;
 935         if ((n = strlen(push_info->dest)) > show_info->width2)
 936                 show_info->width2 = n;
 937         item = string_list_append(push_item->string, show_info->list);
 938         item->util = push_item->util;
 939         return 0;
 940 }
 941
 942 /*
 943  * Sorting comparison for a string list that has push_info
 944  * structs in its util field
 945  */
 946 static int cmp_string_with_push(const void *va, const void *vb)
 947 {
 948         const struct string_list_item *a = va;
 949         const struct string_list_item *b = vb;
 950         const struct push_info *a_push = a->util;
 951         const struct push_info *b_push = b->util;
 952         int cmp = strcmp(a->string, b->string);
 953         return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
 954 }
 955
 956 static int show_push_info_item(struct string_list_item *item, void *cb_data)
 957 {
 958         struct show_info *show_info = cb_data;
 959         struct push_info *push_info = item->util;
 960         char *src = item->string, *status = NULL;
 961
 962         switch (push_info->status) {
 963         case PUSH_STATUS_CREATE:
 964                 status = "create";
 965                 break;
 966         case PUSH_STATUS_DELETE:
 967                 status = "delete";
 968                 src = "(none)";
 969                 break;
 970         case PUSH_STATUS_UPTODATE:
 971                 status = "up to date";
 972                 break;
 973         case PUSH_STATUS_FASTFORWARD:
 974                 status = "fast-forwardable";
 975                 break;
 976         case PUSH_STATUS_OUTOFDATE:
 977                 status = "local out of date";
 978                 break;
 979         case PUSH_STATUS_NOTQUERIED:
 980                 break;
 981         }
 982         if (status)
 983                 printf("    %-*s %s to %-*s (%s)\n", show_info->width, src,
 984                         push_info->forced ? "forces" : "pushes",
 985                         show_info->width2, push_info->dest, status);
 986         else
 987                 printf("    %-*s %s to %s\n", show_info->width, src,
 988                         push_info->forced ? "forces" : "pushes",
 989                         push_info->dest);
 990         return 0;
 991 }
 992
 993 static int show(int argc, const char **argv)
 994 {
 995         int no_query = 0, result = 0, query_flag = 0;
 996         struct option options[] = {
 997                 OPT_BOOLEAN('n', NULL, &no_query, "do not query remotes"),
 998                 OPT_END()
 999         };
1000         struct ref_states states;
1001         struct string_list info_list = { NULL, 0, 0, 0 };
1002         struct show_info info;
1003
1004         argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1005                              0);
1006
1007         if (argc < 1)
1008                 return show_all();
1009
1010         if (!no_query)
1011                 query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1012
1013         memset(&states, 0, sizeof(states));
1014         memset(&info, 0, sizeof(info));
1015         info.states = &states;
1016         info.list = &info_list;
1017         for (; argc; argc--, argv++) {
1018                 int i;
1019                 const char **url;
1020                 int url_nr;
1021
1022                 get_remote_ref_states(*argv, &states, query_flag);
1023
1024                 printf("* remote %s\n", *argv);
1025                 printf("  Fetch URL: %s\n", states.remote->url_nr > 0 ?
1026                         states.remote->url[0] : "(no URL)");
1027                 if (states.remote->pushurl_nr) {
1028                         url = states.remote->pushurl;
1029                         url_nr = states.remote->pushurl_nr;
1030                 } else {
1031                         url = states.remote->url;
1032                         url_nr = states.remote->url_nr;
1033                 }
1034                 for (i=0; i < url_nr; i++)
1035                         printf("  Push  URL: %s\n", url[i]);
1036                 if (!i)
1037                         printf("  Push  URL: %s\n", "(no URL)");
1038                 if (no_query)
1039                         printf("  HEAD branch: (not queried)\n");
1040                 else if (!states.heads.nr)
1041                         printf("  HEAD branch: (unknown)\n");
1042                 else if (states.heads.nr == 1)
1043                         printf("  HEAD branch: %s\n", states.heads.items[0].string);
1044                 else {
1045                         printf("  HEAD branch (remote HEAD is ambiguous,"
1046                                " may be one of the following):\n");
1047                         for (i = 0; i < states.heads.nr; i++)
1048                                 printf("    %s\n", states.heads.items[i].string);
1049                 }
1050
1051                 /* remote branch info */
1052                 info.width = 0;
1053                 for_each_string_list(add_remote_to_show_info, &states.new, &info);
1054                 for_each_string_list(add_remote_to_show_info, &states.tracked, &info);
1055                 for_each_string_list(add_remote_to_show_info, &states.stale, &info);
1056                 if (info.list->nr)
1057                         printf("  Remote branch%s:%s\n",
1058                                info.list->nr > 1 ? "es" : "",
1059                                 no_query ? " (status not queried)" : "");
1060                 for_each_string_list(show_remote_info_item, info.list, &info);
1061                 string_list_clear(info.list, 0);
1062
1063                 /* git pull info */
1064                 info.width = 0;
1065                 info.any_rebase = 0;
1066                 for_each_string_list(add_local_to_show_info, &branch_list, &info);
1067                 if (info.list->nr)
1068                         printf("  Local branch%s configured for 'git pull':\n",
1069                                info.list->nr > 1 ? "es" : "");
1070                 for_each_string_list(show_local_info_item, info.list, &info);
1071                 string_list_clear(info.list, 0);
1072
1073                 /* git push info */
1074                 if (states.remote->mirror)
1075                         printf("  Local refs will be mirrored by 'git push'\n");
1076
1077                 info.width = info.width2 = 0;
1078                 for_each_string_list(add_push_to_show_info, &states.push, &info);
1079                 qsort(info.list->items, info.list->nr,
1080                         sizeof(*info.list->items), cmp_string_with_push);
1081                 if (info.list->nr)
1082                         printf("  Local ref%s configured for 'git push'%s:\n",
1083                                 info.list->nr > 1 ? "s" : "",
1084                                 no_query ? " (status not queried)" : "");
1085                 for_each_string_list(show_push_info_item, info.list, &info);
1086                 string_list_clear(info.list, 0);
1087
1088                 free_remote_ref_states(&states);
1089         }
1090
1091         return result;
1092 }
1093
1094 static int set_head(int argc, const char **argv)
1095 {
1096         int i, opt_a = 0, opt_d = 0, result = 0;
1097         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1098         char *head_name = NULL;
1099
1100         struct option options[] = {
1101                 OPT_BOOLEAN('a', "auto", &opt_a,
1102                             "set refs/remotes/<name>/HEAD according to remote"),
1103                 OPT_BOOLEAN('d', "delete", &opt_d,
1104                             "delete refs/remotes/<name>/HEAD"),
1105                 OPT_END()
1106         };
1107         argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1108                              0);
1109         if (argc)
1110                 strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1111
1112         if (!opt_a && !opt_d && argc == 2) {
1113                 head_name = xstrdup(argv[1]);
1114         } else if (opt_a && !opt_d && argc == 1) {
1115                 struct ref_states states;
1116                 memset(&states, 0, sizeof(states));
1117                 get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1118                 if (!states.heads.nr)
1119                         result |= error("Cannot determine remote HEAD");
1120                 else if (states.heads.nr > 1) {
1121                         result |= error("Multiple remote HEAD branches. "
1122                                         "Please choose one explicitly with:");
1123                         for (i = 0; i < states.heads.nr; i++)
1124                                 fprintf(stderr, "  git remote set-head %s %s\n",
1125                                         argv[0], states.heads.items[i].string);
1126                 } else
1127                         head_name = xstrdup(states.heads.items[0].string);
1128                 free_remote_ref_states(&states);
1129         } else if (opt_d && !opt_a && argc == 1) {
1130                 if (delete_ref(buf.buf, NULL, REF_NODEREF))
1131                         result |= error("Could not delete %s", buf.buf);
1132         } else
1133                 usage_with_options(builtin_remote_sethead_usage, options);
1134
1135         if (head_name) {
1136                 unsigned char sha1[20];
1137                 strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1138                 /* make sure it's valid */
1139                 if (!resolve_ref(buf2.buf, sha1, 1, NULL))
1140                         result |= error("Not a valid ref: %s", buf2.buf);
1141                 else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1142                         result |= error("Could not setup %s", buf.buf);
1143                 if (opt_a)
1144                         printf("%s/HEAD set to %s\n", argv[0], head_name);
1145                 free(head_name);
1146         }
1147
1148         strbuf_release(&buf);
1149         strbuf_release(&buf2);
1150         return result;
1151 }
1152
1153 static int prune(int argc, const char **argv)
1154 {
1155         int dry_run = 0, result = 0;
1156         struct option options[] = {
1157                 OPT__DRY_RUN(&dry_run),
1158                 OPT_END()
1159         };
1160
1161         argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1162                              0);
1163
1164         if (argc < 1)
1165                 usage_with_options(builtin_remote_prune_usage, options);
1166
1167         for (; argc; argc--, argv++)
1168                 result |= prune_remote(*argv, dry_run);
1169
1170         return result;
1171 }
1172
1173 static int prune_remote(const char *remote, int dry_run)
1174 {
1175         int result = 0, i;
1176         struct ref_states states;
1177         const char *dangling_msg = dry_run
1178                 ? " %s will become dangling!\n"
1179                 : " %s has become dangling!\n";
1180
1181         memset(&states, 0, sizeof(states));
1182         get_remote_ref_states(remote, &states, GET_REF_STATES);
1183
1184         if (states.stale.nr) {
1185                 printf("Pruning %s\n", remote);
1186                 printf("URL: %s\n",
1187                        states.remote->url_nr
1188                        ? states.remote->url[0]
1189                        : "(no URL)");
1190         }
1191
1192         for (i = 0; i < states.stale.nr; i++) {
1193                 const char *refname = states.stale.items[i].util;
1194
1195                 if (!dry_run)
1196                         result |= delete_ref(refname, NULL, 0);
1197
1198                 printf(" * [%s] %s\n", dry_run ? "would prune" : "pruned",
1199                        abbrev_ref(refname, "refs/remotes/"));
1200                 warn_dangling_symref(stdout, dangling_msg, refname);
1201         }
1202
1203         free_remote_ref_states(&states);
1204         return result;
1205 }
1206
1207 static int get_remote_default(const char *key, const char *value, void *priv)
1208 {
1209         if (strcmp(key, "remotes.default") == 0) {
1210                 int *found = priv;
1211                 *found = 1;
1212         }
1213         return 0;
1214 }
1215
1216 static int update(int argc, const char **argv)
1217 {
1218         int i, prune = 0;
1219         struct option options[] = {
1220                 OPT_BOOLEAN('p', "prune", &prune,
1221                             "prune remotes after fetching"),
1222                 OPT_END()
1223         };
1224         const char **fetch_argv;
1225         int fetch_argc = 0;
1226         int default_defined = 0;
1227
1228         fetch_argv = xmalloc(sizeof(char *) * (argc+5));
1229
1230         argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1231                              PARSE_OPT_KEEP_ARGV0);
1232
1233         fetch_argv[fetch_argc++] = "fetch";
1234
1235         if (prune)
1236                 fetch_argv[fetch_argc++] = "--prune";
1237         if (verbose)
1238                 fetch_argv[fetch_argc++] = "-v";
1239         if (argc < 2) {
1240                 fetch_argv[fetch_argc++] = "default";
1241         } else {
1242                 fetch_argv[fetch_argc++] = "--multiple";
1243                 for (i = 1; i < argc; i++)
1244                         fetch_argv[fetch_argc++] = argv[i];
1245         }
1246
1247         if (strcmp(fetch_argv[fetch_argc-1], "default") == 0) {
1248                 git_config(get_remote_default, &default_defined);
1249                 if (!default_defined)
1250                         fetch_argv[fetch_argc-1] = "--all";
1251         }
1252
1253         fetch_argv[fetch_argc] = NULL;
1254
1255         return run_command_v_opt(fetch_argv, RUN_GIT_CMD);
1256 }
1257
1258 static int get_one_entry(struct remote *remote, void *priv)
1259 {
1260         struct string_list *list = priv;
1261         struct strbuf url_buf = STRBUF_INIT;
1262         const char **url;
1263         int i, url_nr;
1264
1265         if (remote->url_nr > 0) {
1266                 strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1267                 string_list_append(remote->name, list)->util =
1268                                 strbuf_detach(&url_buf, NULL);
1269         } else
1270                 string_list_append(remote->name, list)->util = NULL;
1271         if (remote->pushurl_nr) {
1272                 url = remote->pushurl;
1273                 url_nr = remote->pushurl_nr;
1274         } else {
1275                 url = remote->url;
1276                 url_nr = remote->url_nr;
1277         }
1278         for (i = 0; i < url_nr; i++)
1279         {
1280                 strbuf_addf(&url_buf, "%s (push)", url[i]);
1281                 string_list_append(remote->name, list)->util =
1282                                 strbuf_detach(&url_buf, NULL);
1283         }
1284
1285         return 0;
1286 }
1287
1288 static int show_all(void)
1289 {
1290         struct string_list list = { NULL, 0, 0 };
1291         int result;
1292
1293         list.strdup_strings = 1;
1294         result = for_each_remote(get_one_entry, &list);
1295
1296         if (!result) {
1297                 int i;
1298
1299                 sort_string_list(&list);
1300                 for (i = 0; i < list.nr; i++) {
1301                         struct string_list_item *item = list.items + i;
1302                         if (verbose)
1303                                 printf("%s\t%s\n", item->string,
1304                                         item->util ? (const char *)item->util : "");
1305                         else {
1306                                 if (i && !strcmp((item - 1)->string, item->string))
1307                                         continue;
1308                                 printf("%s\n", item->string);
1309                         }
1310                 }
1311         }
1312         string_list_clear(&list, 1);
1313         return result;
1314 }
1315
1316 int cmd_remote(int argc, const char **argv, const char *prefix)
1317 {
1318         struct option options[] = {
1319                 OPT_BOOLEAN('v', "verbose", &verbose, "be verbose; must be placed before a subcommand"),
1320                 OPT_END()
1321         };
1322         int result;
1323
1324         argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1325                 PARSE_OPT_STOP_AT_NON_OPTION);
1326
1327         if (argc < 1)
1328                 result = show_all();
1329         else if (!strcmp(argv[0], "add"))
1330                 result = add(argc, argv);
1331         else if (!strcmp(argv[0], "rename"))
1332                 result = mv(argc, argv);
1333         else if (!strcmp(argv[0], "rm"))
1334                 result = rm(argc, argv);
1335         else if (!strcmp(argv[0], "set-head"))
1336                 result = set_head(argc, argv);
1337         else if (!strcmp(argv[0], "show"))
1338                 result = show(argc, argv);
1339         else if (!strcmp(argv[0], "prune"))
1340                 result = prune(argc, argv);
1341         else if (!strcmp(argv[0], "update"))
1342                 result = update(argc, argv);
1343         else {
1344                 error("Unknown subcommand: %s", argv[0]);
1345                 usage_with_options(builtin_remote_usage, options);
1346         }
1347
1348         return result ? 1 : 0;
1349 }