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 = 1;
 276         states->tracked.strdup_strings = 1;
 277         states->stale.strdup_strings = 1;
 278         for (ref = fetch_map; ref; ref = ref->next) {
 279                 unsigned char sha1[20];
 280                 if (!ref->peer_ref || read_ref(ref->peer_ref->name, sha1))
 281                         string_list_append(abbrev_branch(ref->name), &states->new);
 282                 else
 283                         string_list_append(abbrev_branch(ref->name), &states->tracked);
 284         }
 285         stale_refs = get_stale_heads(states->remote, fetch_map);
 286         for (ref = stale_refs; ref; ref = ref->next) {
 287                 struct string_list_item *item =
 288                         string_list_append(abbrev_branch(ref->name), &states->stale);
 289                 item->util = xstrdup(ref->name);
 290         }
 291         free_refs(stale_refs);
 292         free_refs(fetch_map);
 293
 294         sort_string_list(&states->new);
 295         sort_string_list(&states->tracked);
 296         sort_string_list(&states->stale);
 297
 298         return 0;
 299 }
 300
 301 struct push_info {
 302         char *dest;
 303         int forced;
 304         enum {
 305                 PUSH_STATUS_CREATE = 0,
 306                 PUSH_STATUS_DELETE,
 307                 PUSH_STATUS_UPTODATE,
 308                 PUSH_STATUS_FASTFORWARD,
 309                 PUSH_STATUS_OUTOFDATE,
 310                 PUSH_STATUS_NOTQUERIED,
 311         } status;
 312 };
 313
 314 static int get_push_ref_states(const struct ref *remote_refs,
 315         struct ref_states *states)
 316 {
 317         struct remote *remote = states->remote;
 318         struct ref *ref, *local_refs, *push_map;
 319         if (remote->mirror)
 320                 return 0;
 321
 322         local_refs = get_local_heads();
 323         push_map = copy_ref_list(remote_refs);
 324
 325         match_refs(local_refs, &push_map, remote->push_refspec_nr,
 326                    remote->push_refspec, MATCH_REFS_NONE);
 327
 328         states->push.strdup_strings = 1;
 329         for (ref = push_map; ref; ref = ref->next) {
 330                 struct string_list_item *item;
 331                 struct push_info *info;
 332
 333                 if (!ref->peer_ref)
 334                         continue;
 335                 hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
 336
 337                 item = string_list_append(abbrev_branch(ref->peer_ref->name),
 338                                           &states->push);
 339                 item->util = xcalloc(sizeof(struct push_info), 1);
 340                 info = item->util;
 341                 info->forced = ref->force;
 342                 info->dest = xstrdup(abbrev_branch(ref->name));
 343
 344                 if (is_null_sha1(ref->new_sha1)) {
 345                         info->status = PUSH_STATUS_DELETE;
 346                 } else if (!hashcmp(ref->old_sha1, ref->new_sha1))
 347                         info->status = PUSH_STATUS_UPTODATE;
 348                 else if (is_null_sha1(ref->old_sha1))
 349                         info->status = PUSH_STATUS_CREATE;
 350                 else if (has_sha1_file(ref->old_sha1) &&
 351                          ref_newer(ref->new_sha1, ref->old_sha1))
 352                         info->status = PUSH_STATUS_FASTFORWARD;
 353                 else
 354                         info->status = PUSH_STATUS_OUTOFDATE;
 355         }
 356         free_refs(local_refs);
 357         free_refs(push_map);
 358         return 0;
 359 }
 360
 361 static int get_push_ref_states_noquery(struct ref_states *states)
 362 {
 363         int i;
 364         struct remote *remote = states->remote;
 365         struct string_list_item *item;
 366         struct push_info *info;
 367
 368         if (remote->mirror)
 369                 return 0;
 370
 371         states->push.strdup_strings = 1;
 372         if (!remote->push_refspec_nr) {
 373                 item = string_list_append("(matching)", &states->push);
 374                 info = item->util = xcalloc(sizeof(struct push_info), 1);
 375                 info->status = PUSH_STATUS_NOTQUERIED;
 376                 info->dest = xstrdup(item->string);
 377         }
 378         for (i = 0; i < remote->push_refspec_nr; i++) {
 379                 struct refspec *spec = remote->push + i;
 380                 if (spec->matching)
 381                         item = string_list_append("(matching)", &states->push);
 382                 else if (strlen(spec->src))
 383                         item = string_list_append(spec->src, &states->push);
 384                 else
 385                         item = string_list_append("(delete)", &states->push);
 386
 387                 info = item->util = xcalloc(sizeof(struct push_info), 1);
 388                 info->forced = spec->force;
 389                 info->status = PUSH_STATUS_NOTQUERIED;
 390                 info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 391         }
 392         return 0;
 393 }
 394
 395 static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 396 {
 397         struct ref *ref, *matches;
 398         struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 399         struct refspec refspec;
 400
 401         refspec.force = 0;
 402         refspec.pattern = 1;
 403         refspec.src = refspec.dst = "refs/heads/*";
 404         states->heads.strdup_strings = 1;
 405         get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 406         matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 407                                     fetch_map, 1);
 408         for (ref = matches; ref; ref = ref->next)
 409                 string_list_append(abbrev_branch(ref->name), &states->heads);
 410
 411         free_refs(fetch_map);
 412         free_refs(matches);
 413
 414         return 0;
 415 }
 416
 417 struct known_remote {
 418         struct known_remote *next;
 419         struct remote *remote;
 420 };
 421
 422 struct known_remotes {
 423         struct remote *to_delete;
 424         struct known_remote *list;
 425 };
 426
 427 static int add_known_remote(struct remote *remote, void *cb_data)
 428 {
 429         struct known_remotes *all = cb_data;
 430         struct known_remote *r;
 431
 432         if (!strcmp(all->to_delete->name, remote->name))
 433                 return 0;
 434
 435         r = xmalloc(sizeof(*r));
 436         r->remote = remote;
 437         r->next = all->list;
 438         all->list = r;
 439         return 0;
 440 }
 441
 442 struct branches_for_remote {
 443         struct remote *remote;
 444         struct string_list *branches, *skipped;
 445         struct known_remotes *keep;
 446 };
 447
 448 static int add_branch_for_removal(const char *refname,
 449         const unsigned char *sha1, int flags, void *cb_data)
 450 {
 451         struct branches_for_remote *branches = cb_data;
 452         struct refspec refspec;
 453         struct string_list_item *item;
 454         struct known_remote *kr;
 455
 456         memset(&refspec, 0, sizeof(refspec));
 457         refspec.dst = (char *)refname;
 458         if (remote_find_tracking(branches->remote, &refspec))
 459                 return 0;
 460
 461         /* don't delete a branch if another remote also uses it */
 462         for (kr = branches->keep->list; kr; kr = kr->next) {
 463                 memset(&refspec, 0, sizeof(refspec));
 464                 refspec.dst = (char *)refname;
 465                 if (!remote_find_tracking(kr->remote, &refspec))
 466                         return 0;
 467         }
 468
 469         /* don't delete non-remote refs */
 470         if (prefixcmp(refname, "refs/remotes")) {
 471                 /* advise user how to delete local branches */
 472                 if (!prefixcmp(refname, "refs/heads/"))
 473                         string_list_append(abbrev_branch(refname),
 474                                            branches->skipped);
 475                 /* silently skip over other non-remote refs */
 476                 return 0;
 477         }
 478
 479         /* make sure that symrefs are deleted */
 480         if (flags & REF_ISSYMREF)
 481                 return unlink(git_path("%s", refname));
 482
 483         item = string_list_append(refname, branches->branches);
 484         item->util = xmalloc(20);
 485         hashcpy(item->util, sha1);
 486
 487         return 0;
 488 }
 489
 490 struct rename_info {
 491         const char *old;
 492         const char *new;
 493         struct string_list *remote_branches;
 494 };
 495
 496 static int read_remote_branches(const char *refname,
 497         const unsigned char *sha1, int flags, void *cb_data)
 498 {
 499         struct rename_info *rename = cb_data;
 500         struct strbuf buf = STRBUF_INIT;
 501         struct string_list_item *item;
 502         int flag;
 503         unsigned char orig_sha1[20];
 504         const char *symref;
 505
 506         strbuf_addf(&buf, "refs/remotes/%s", rename->old);
 507         if (!prefixcmp(refname, buf.buf)) {
 508                 item = string_list_append(xstrdup(refname), rename->remote_branches);
 509                 symref = resolve_ref(refname, orig_sha1, 1, &flag);
 510                 if (flag & REF_ISSYMREF)
 511                         item->util = xstrdup(symref);
 512                 else
 513                         item->util = NULL;
 514         }
 515
 516         return 0;
 517 }
 518
 519 static int migrate_file(struct remote *remote)
 520 {
 521         struct strbuf buf = STRBUF_INIT;
 522         int i;
 523         char *path = NULL;
 524
 525         strbuf_addf(&buf, "remote.%s.url", remote->name);
 526         for (i = 0; i < remote->url_nr; i++)
 527                 if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0))
 528                         return error("Could not append '%s' to '%s'",
 529                                         remote->url[i], buf.buf);
 530         strbuf_reset(&buf);
 531         strbuf_addf(&buf, "remote.%s.push", remote->name);
 532         for (i = 0; i < remote->push_refspec_nr; i++)
 533                 if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0))
 534                         return error("Could not append '%s' to '%s'",
 535                                         remote->push_refspec[i], buf.buf);
 536         strbuf_reset(&buf);
 537         strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 538         for (i = 0; i < remote->fetch_refspec_nr; i++)
 539                 if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0))
 540                         return error("Could not append '%s' to '%s'",
 541                                         remote->fetch_refspec[i], buf.buf);
 542         if (remote->origin == REMOTE_REMOTES)
 543                 path = git_path("remotes/%s", remote->name);
 544         else if (remote->origin == REMOTE_BRANCHES)
 545                 path = git_path("branches/%s", remote->name);
 546         if (path)
 547                 unlink_or_warn(path);
 548         return 0;
 549 }
 550
 551 static int mv(int argc, const char **argv)
 552 {
 553         struct option options[] = {
 554                 OPT_END()
 555         };
 556         struct remote *oldremote, *newremote;
 557         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT;
 558         struct string_list remote_branches = { NULL, 0, 0, 0 };
 559         struct rename_info rename;
 560         int i;
 561
 562         if (argc != 3)
 563                 usage_with_options(builtin_remote_rename_usage, options);
 564
 565         rename.old = argv[1];
 566         rename.new = argv[2];
 567         rename.remote_branches = &remote_branches;
 568
 569         oldremote = remote_get(rename.old);
 570         if (!oldremote)
 571                 die("No such remote: %s", rename.old);
 572
 573         if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
 574                 return migrate_file(oldremote);
 575
 576         newremote = remote_get(rename.new);
 577         if (newremote && (newremote->url_nr > 1 || newremote->fetch_refspec_nr))
 578                 die("remote %s already exists.", rename.new);
 579
 580         strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
 581         if (!valid_fetch_refspec(buf.buf))
 582                 die("'%s' is not a valid remote name", rename.new);
 583
 584         strbuf_reset(&buf);
 585         strbuf_addf(&buf, "remote.%s", rename.old);
 586         strbuf_addf(&buf2, "remote.%s", rename.new);
 587         if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 588                 return error("Could not rename config section '%s' to '%s'",
 589                                 buf.buf, buf2.buf);
 590
 591         strbuf_reset(&buf);
 592         strbuf_addf(&buf, "remote.%s.fetch", rename.new);
 593         if (git_config_set_multivar(buf.buf, NULL, NULL, 1))
 594                 return error("Could not remove config section '%s'", buf.buf);
 595         for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 596                 char *ptr;
 597
 598                 strbuf_reset(&buf2);
 599                 strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 600                 ptr = strstr(buf2.buf, rename.old);
 601                 if (ptr)
 602                         strbuf_splice(&buf2, ptr-buf2.buf, strlen(rename.old),
 603                                         rename.new, strlen(rename.new));
 604                 if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 605                         return error("Could not append '%s'", buf.buf);
 606         }
 607
 608         read_branches();
 609         for (i = 0; i < branch_list.nr; i++) {
 610                 struct string_list_item *item = branch_list.items + i;
 611                 struct branch_info *info = item->util;
 612                 if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 613                         strbuf_reset(&buf);
 614                         strbuf_addf(&buf, "branch.%s.remote", item->string);
 615                         if (git_config_set(buf.buf, rename.new)) {
 616                                 return error("Could not set '%s'", buf.buf);
 617                         }
 618                 }
 619         }
 620
 621         /*
 622          * First remove symrefs, then rename the rest, finally create
 623          * the new symrefs.
 624          */
 625         for_each_ref(read_remote_branches, &rename);
 626         for (i = 0; i < remote_branches.nr; i++) {
 627                 struct string_list_item *item = remote_branches.items + i;
 628                 int flag = 0;
 629                 unsigned char sha1[20];
 630
 631                 resolve_ref(item->string, sha1, 1, &flag);
 632                 if (!(flag & REF_ISSYMREF))
 633                         continue;
 634                 if (delete_ref(item->string, NULL, REF_NODEREF))
 635                         die("deleting '%s' failed", item->string);
 636         }
 637         for (i = 0; i < remote_branches.nr; i++) {
 638                 struct string_list_item *item = remote_branches.items + i;
 639
 640                 if (item->util)
 641                         continue;
 642                 strbuf_reset(&buf);
 643                 strbuf_addstr(&buf, item->string);
 644                 strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 645                                 rename.new, strlen(rename.new));
 646                 strbuf_reset(&buf2);
 647                 strbuf_addf(&buf2, "remote: renamed %s to %s",
 648                                 item->string, buf.buf);
 649                 if (rename_ref(item->string, buf.buf, buf2.buf))
 650                         die("renaming '%s' failed", item->string);
 651         }
 652         for (i = 0; i < remote_branches.nr; i++) {
 653                 struct string_list_item *item = remote_branches.items + i;
 654
 655                 if (!item->util)
 656                         continue;
 657                 strbuf_reset(&buf);
 658                 strbuf_addstr(&buf, item->string);
 659                 strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 660                                 rename.new, strlen(rename.new));
 661                 strbuf_reset(&buf2);
 662                 strbuf_addstr(&buf2, item->util);
 663                 strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
 664                                 rename.new, strlen(rename.new));
 665                 strbuf_reset(&buf3);
 666                 strbuf_addf(&buf3, "remote: renamed %s to %s",
 667                                 item->string, buf.buf);
 668                 if (create_symref(buf.buf, buf2.buf, buf3.buf))
 669                         die("creating '%s' failed", buf.buf);
 670         }
 671         return 0;
 672 }
 673
 674 static int remove_branches(struct string_list *branches)
 675 {
 676         int i, result = 0;
 677         for (i = 0; i < branches->nr; i++) {
 678                 struct string_list_item *item = branches->items + i;
 679                 const char *refname = item->string;
 680                 unsigned char *sha1 = item->util;
 681
 682                 if (delete_ref(refname, sha1, 0))
 683                         result |= error("Could not remove branch %s", refname);
 684         }
 685         return result;
 686 }
 687
 688 static int rm(int argc, const char **argv)
 689 {
 690         struct option options[] = {
 691                 OPT_END()
 692         };
 693         struct remote *remote;
 694         struct strbuf buf = STRBUF_INIT;
 695         struct known_remotes known_remotes = { NULL, NULL };
 696         struct string_list branches = { NULL, 0, 0, 1 };
 697         struct string_list skipped = { NULL, 0, 0, 1 };
 698         struct branches_for_remote cb_data = {
 699                 NULL, &branches, &skipped, &known_remotes
 700         };
 701         int i, result;
 702
 703         if (argc != 2)
 704                 usage_with_options(builtin_remote_rm_usage, options);
 705
 706         remote = remote_get(argv[1]);
 707         if (!remote)
 708                 die("No such remote: %s", argv[1]);
 709
 710         known_remotes.to_delete = remote;
 711         for_each_remote(add_known_remote, &known_remotes);
 712
 713         strbuf_addf(&buf, "remote.%s", remote->name);
 714         if (git_config_rename_section(buf.buf, NULL) < 1)
 715                 return error("Could not remove config section '%s'", buf.buf);
 716
 717         read_branches();
 718         for (i = 0; i < branch_list.nr; i++) {
 719                 struct string_list_item *item = branch_list.items + i;
 720                 struct branch_info *info = item->util;
 721                 if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 722                         const char *keys[] = { "remote", "merge", NULL }, **k;
 723                         for (k = keys; *k; k++) {
 724                                 strbuf_reset(&buf);
 725                                 strbuf_addf(&buf, "branch.%s.%s",
 726                                                 item->string, *k);
 727                                 if (git_config_set(buf.buf, NULL)) {
 728                                         strbuf_release(&buf);
 729                                         return -1;
 730                                 }
 731                         }
 732                 }
 733         }
 734
 735         /*
 736          * We cannot just pass a function to for_each_ref() which deletes
 737          * the branches one by one, since for_each_ref() relies on cached
 738          * refs, which are invalidated when deleting a branch.
 739          */
 740         cb_data.remote = remote;
 741         result = for_each_ref(add_branch_for_removal, &cb_data);
 742         strbuf_release(&buf);
 743
 744         if (!result)
 745                 result = remove_branches(&branches);
 746         string_list_clear(&branches, 1);
 747
 748         if (skipped.nr) {
 749                 fprintf(stderr, skipped.nr == 1 ?
 750                         "Note: A non-remote branch was not removed; "
 751                         "to delete it, use:\n" :
 752                         "Note: Non-remote branches were not removed; "
 753                         "to delete them, use:\n");
 754                 for (i = 0; i < skipped.nr; i++)
 755                         fprintf(stderr, "  git branch -d %s\n",
 756                                 skipped.items[i].string);
 757         }
 758         string_list_clear(&skipped, 0);
 759
 760         return result;
 761 }
 762
 763 static void clear_push_info(void *util, const char *string)
 764 {
 765         struct push_info *info = util;
 766         free(info->dest);
 767         free(info);
 768 }
 769
 770 static void free_remote_ref_states(struct ref_states *states)
 771 {
 772         string_list_clear(&states->new, 0);
 773         string_list_clear(&states->stale, 1);
 774         string_list_clear(&states->tracked, 0);
 775         string_list_clear(&states->heads, 0);
 776         string_list_clear_func(&states->push, clear_push_info);
 777 }
 778
 779 static int append_ref_to_tracked_list(const char *refname,
 780         const unsigned char *sha1, int flags, void *cb_data)
 781 {
 782         struct ref_states *states = cb_data;
 783         struct refspec refspec;
 784
 785         if (flags & REF_ISSYMREF)
 786                 return 0;
 787
 788         memset(&refspec, 0, sizeof(refspec));
 789         refspec.dst = (char *)refname;
 790         if (!remote_find_tracking(states->remote, &refspec))
 791                 string_list_append(abbrev_branch(refspec.src), &states->tracked);
 792
 793         return 0;
 794 }
 795
 796 static int get_remote_ref_states(const char *name,
 797                                  struct ref_states *states,
 798                                  int query)
 799 {
 800         struct transport *transport;
 801         const struct ref *remote_refs;
 802
 803         states->remote = remote_get(name);
 804         if (!states->remote)
 805                 return error("No such remote: %s", name);
 806
 807         read_branches();
 808
 809         if (query) {
 810                 transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 811                         states->remote->url[0] : NULL);
 812                 remote_refs = transport_get_remote_refs(transport);
 813                 transport_disconnect(transport);
 814
 815                 states->queried = 1;
 816                 if (query & GET_REF_STATES)
 817                         get_ref_states(remote_refs, states);
 818                 if (query & GET_HEAD_NAMES)
 819                         get_head_names(remote_refs, states);
 820                 if (query & GET_PUSH_REF_STATES)
 821                         get_push_ref_states(remote_refs, states);
 822         } else {
 823                 for_each_ref(append_ref_to_tracked_list, states);
 824                 sort_string_list(&states->tracked);
 825                 get_push_ref_states_noquery(states);
 826         }
 827
 828         return 0;
 829 }
 830
 831 struct show_info {
 832         struct string_list *list;
 833         struct ref_states *states;
 834         int width, width2;
 835         int any_rebase;
 836 };
 837
 838 static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 839 {
 840         struct show_info *info = cb_data;
 841         int n = strlen(item->string);
 842         if (n > info->width)
 843                 info->width = n;
 844         string_list_insert(item->string, info->list);
 845         return 0;
 846 }
 847
 848 static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 849 {
 850         struct show_info *info = cb_data;
 851         struct ref_states *states = info->states;
 852         const char *name = item->string;
 853
 854         if (states->queried) {
 855                 const char *fmt = "%s";
 856                 const char *arg = "";
 857                 if (string_list_has_string(&states->new, name)) {
 858                         fmt = " new (next fetch will store in remotes/%s)";
 859                         arg = states->remote->name;
 860                 } else if (string_list_has_string(&states->tracked, name))
 861                         arg = " tracked";
 862                 else if (string_list_has_string(&states->stale, name))
 863                         arg = " stale (use 'git remote prune' to remove)";
 864                 else
 865                         arg = " ???";
 866                 printf("    %-*s", info->width, name);
 867                 printf(fmt, arg);
 868                 printf("\n");
 869         } else
 870                 printf("    %s\n", name);
 871
 872         return 0;
 873 }
 874
 875 static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 876 {
 877         struct show_info *show_info = cb_data;
 878         struct ref_states *states = show_info->states;
 879         struct branch_info *branch_info = branch_item->util;
 880         struct string_list_item *item;
 881         int n;
 882
 883         if (!branch_info->merge.nr || !branch_info->remote_name ||
 884             strcmp(states->remote->name, branch_info->remote_name))
 885                 return 0;
 886         if ((n = strlen(branch_item->string)) > show_info->width)
 887                 show_info->width = n;
 888         if (branch_info->rebase)
 889                 show_info->any_rebase = 1;
 890
 891         item = string_list_insert(branch_item->string, show_info->list);
 892         item->util = branch_info;
 893
 894         return 0;
 895 }
 896
 897 static int show_local_info_item(struct string_list_item *item, void *cb_data)
 898 {
 899         struct show_info *show_info = cb_data;
 900         struct branch_info *branch_info = item->util;
 901         struct string_list *merge = &branch_info->merge;
 902         const char *also;
 903         int i;
 904
 905         if (branch_info->rebase && branch_info->merge.nr > 1) {
 906                 error("invalid branch.%s.merge; cannot rebase onto > 1 branch",
 907                         item->string);
 908                 return 0;
 909         }
 910
 911         printf("    %-*s ", show_info->width, item->string);
 912         if (branch_info->rebase) {
 913                 printf("rebases onto remote %s\n", merge->items[0].string);
 914                 return 0;
 915         } else if (show_info->any_rebase) {
 916                 printf(" merges with remote %s\n", merge->items[0].string);
 917                 also = "    and with remote";
 918         } else {
 919                 printf("merges with remote %s\n", merge->items[0].string);
 920                 also = "   and with remote";
 921         }
 922         for (i = 1; i < merge->nr; i++)
 923                 printf("    %-*s %s %s\n", show_info->width, "", also,
 924                        merge->items[i].string);
 925
 926         return 0;
 927 }
 928
 929 static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
 930 {
 931         struct show_info *show_info = cb_data;
 932         struct push_info *push_info = push_item->util;
 933         struct string_list_item *item;
 934         int n;
 935         if ((n = strlen(push_item->string)) > show_info->width)
 936                 show_info->width = n;
 937         if ((n = strlen(push_info->dest)) > show_info->width2)
 938                 show_info->width2 = n;
 939         item = string_list_append(push_item->string, show_info->list);
 940         item->util = push_item->util;
 941         return 0;
 942 }
 943
 944 /*
 945  * Sorting comparison for a string list that has push_info
 946  * structs in its util field
 947  */
 948 static int cmp_string_with_push(const void *va, const void *vb)
 949 {
 950         const struct string_list_item *a = va;
 951         const struct string_list_item *b = vb;
 952         const struct push_info *a_push = a->util;
 953         const struct push_info *b_push = b->util;
 954         int cmp = strcmp(a->string, b->string);
 955         return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
 956 }
 957
 958 static int show_push_info_item(struct string_list_item *item, void *cb_data)
 959 {
 960         struct show_info *show_info = cb_data;
 961         struct push_info *push_info = item->util;
 962         char *src = item->string, *status = NULL;
 963
 964         switch (push_info->status) {
 965         case PUSH_STATUS_CREATE:
 966                 status = "create";
 967                 break;
 968         case PUSH_STATUS_DELETE:
 969                 status = "delete";
 970                 src = "(none)";
 971                 break;
 972         case PUSH_STATUS_UPTODATE:
 973                 status = "up to date";
 974                 break;
 975         case PUSH_STATUS_FASTFORWARD:
 976                 status = "fast-forwardable";
 977                 break;
 978         case PUSH_STATUS_OUTOFDATE:
 979                 status = "local out of date";
 980                 break;
 981         case PUSH_STATUS_NOTQUERIED:
 982                 break;
 983         }
 984         if (status)
 985                 printf("    %-*s %s to %-*s (%s)\n", show_info->width, src,
 986                         push_info->forced ? "forces" : "pushes",
 987                         show_info->width2, push_info->dest, status);
 988         else
 989                 printf("    %-*s %s to %s\n", show_info->width, src,
 990                         push_info->forced ? "forces" : "pushes",
 991                         push_info->dest);
 992         return 0;
 993 }
 994
 995 static int show(int argc, const char **argv)
 996 {
 997         int no_query = 0, result = 0, query_flag = 0;
 998         struct option options[] = {
 999                 OPT_BOOLEAN('n', NULL, &no_query, "do not query remotes"),
1000                 OPT_END()
1001         };
1002         struct ref_states states;
1003         struct string_list info_list = { NULL, 0, 0, 0 };
1004         struct show_info info;
1005
1006         argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1007                              0);
1008
1009         if (argc < 1)
1010                 return show_all();
1011
1012         if (!no_query)
1013                 query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1014
1015         memset(&states, 0, sizeof(states));
1016         memset(&info, 0, sizeof(info));
1017         info.states = &states;
1018         info.list = &info_list;
1019         for (; argc; argc--, argv++) {
1020                 int i;
1021                 const char **url;
1022                 int url_nr;
1023
1024                 get_remote_ref_states(*argv, &states, query_flag);
1025
1026                 printf("* remote %s\n", *argv);
1027                 printf("  Fetch URL: %s\n", states.remote->url_nr > 0 ?
1028                         states.remote->url[0] : "(no URL)");
1029                 if (states.remote->pushurl_nr) {
1030                         url = states.remote->pushurl;
1031                         url_nr = states.remote->pushurl_nr;
1032                 } else {
1033                         url = states.remote->url;
1034                         url_nr = states.remote->url_nr;
1035                 }
1036                 for (i=0; i < url_nr; i++)
1037                         printf("  Push  URL: %s\n", url[i]);
1038                 if (!i)
1039                         printf("  Push  URL: %s\n", "(no URL)");
1040                 if (no_query)
1041                         printf("  HEAD branch: (not queried)\n");
1042                 else if (!states.heads.nr)
1043                         printf("  HEAD branch: (unknown)\n");
1044                 else if (states.heads.nr == 1)
1045                         printf("  HEAD branch: %s\n", states.heads.items[0].string);
1046                 else {
1047                         printf("  HEAD branch (remote HEAD is ambiguous,"
1048                                " may be one of the following):\n");
1049                         for (i = 0; i < states.heads.nr; i++)
1050                                 printf("    %s\n", states.heads.items[i].string);
1051                 }
1052
1053                 /* remote branch info */
1054                 info.width = 0;
1055                 for_each_string_list(add_remote_to_show_info, &states.new, &info);
1056                 for_each_string_list(add_remote_to_show_info, &states.tracked, &info);
1057                 for_each_string_list(add_remote_to_show_info, &states.stale, &info);
1058                 if (info.list->nr)
1059                         printf("  Remote branch%s:%s\n",
1060                                info.list->nr > 1 ? "es" : "",
1061                                 no_query ? " (status not queried)" : "");
1062                 for_each_string_list(show_remote_info_item, info.list, &info);
1063                 string_list_clear(info.list, 0);
1064
1065                 /* git pull info */
1066                 info.width = 0;
1067                 info.any_rebase = 0;
1068                 for_each_string_list(add_local_to_show_info, &branch_list, &info);
1069                 if (info.list->nr)
1070                         printf("  Local branch%s configured for 'git pull':\n",
1071                                info.list->nr > 1 ? "es" : "");
1072                 for_each_string_list(show_local_info_item, info.list, &info);
1073                 string_list_clear(info.list, 0);
1074
1075                 /* git push info */
1076                 if (states.remote->mirror)
1077                         printf("  Local refs will be mirrored by 'git push'\n");
1078
1079                 info.width = info.width2 = 0;
1080                 for_each_string_list(add_push_to_show_info, &states.push, &info);
1081                 qsort(info.list->items, info.list->nr,
1082                         sizeof(*info.list->items), cmp_string_with_push);
1083                 if (info.list->nr)
1084                         printf("  Local ref%s configured for 'git push'%s:\n",
1085                                 info.list->nr > 1 ? "s" : "",
1086                                 no_query ? " (status not queried)" : "");
1087                 for_each_string_list(show_push_info_item, info.list, &info);
1088                 string_list_clear(info.list, 0);
1089
1090                 free_remote_ref_states(&states);
1091         }
1092
1093         return result;
1094 }
1095
1096 static int set_head(int argc, const char **argv)
1097 {
1098         int i, opt_a = 0, opt_d = 0, result = 0;
1099         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1100         char *head_name = NULL;
1101
1102         struct option options[] = {
1103                 OPT_BOOLEAN('a', "auto", &opt_a,
1104                             "set refs/remotes/<name>/HEAD according to remote"),
1105                 OPT_BOOLEAN('d', "delete", &opt_d,
1106                             "delete refs/remotes/<name>/HEAD"),
1107                 OPT_END()
1108         };
1109         argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1110                              0);
1111         if (argc)
1112                 strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1113
1114         if (!opt_a && !opt_d && argc == 2) {
1115                 head_name = xstrdup(argv[1]);
1116         } else if (opt_a && !opt_d && argc == 1) {
1117                 struct ref_states states;
1118                 memset(&states, 0, sizeof(states));
1119                 get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1120                 if (!states.heads.nr)
1121                         result |= error("Cannot determine remote HEAD");
1122                 else if (states.heads.nr > 1) {
1123                         result |= error("Multiple remote HEAD branches. "
1124                                         "Please choose one explicitly with:");
1125                         for (i = 0; i < states.heads.nr; i++)
1126                                 fprintf(stderr, "  git remote set-head %s %s\n",
1127                                         argv[0], states.heads.items[i].string);
1128                 } else
1129                         head_name = xstrdup(states.heads.items[0].string);
1130                 free_remote_ref_states(&states);
1131         } else if (opt_d && !opt_a && argc == 1) {
1132                 if (delete_ref(buf.buf, NULL, REF_NODEREF))
1133                         result |= error("Could not delete %s", buf.buf);
1134         } else
1135                 usage_with_options(builtin_remote_sethead_usage, options);
1136
1137         if (head_name) {
1138                 unsigned char sha1[20];
1139                 strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1140                 /* make sure it's valid */
1141                 if (!resolve_ref(buf2.buf, sha1, 1, NULL))
1142                         result |= error("Not a valid ref: %s", buf2.buf);
1143                 else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1144                         result |= error("Could not setup %s", buf.buf);
1145                 if (opt_a)
1146                         printf("%s/HEAD set to %s\n", argv[0], head_name);
1147                 free(head_name);
1148         }
1149
1150         strbuf_release(&buf);
1151         strbuf_release(&buf2);
1152         return result;
1153 }
1154
1155 static int prune(int argc, const char **argv)
1156 {
1157         int dry_run = 0, result = 0;
1158         struct option options[] = {
1159                 OPT__DRY_RUN(&dry_run),
1160                 OPT_END()
1161         };
1162
1163         argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1164                              0);
1165
1166         if (argc < 1)
1167                 usage_with_options(builtin_remote_prune_usage, options);
1168
1169         for (; argc; argc--, argv++)
1170                 result |= prune_remote(*argv, dry_run);
1171
1172         return result;
1173 }
1174
1175 static int prune_remote(const char *remote, int dry_run)
1176 {
1177         int result = 0, i;
1178         struct ref_states states;
1179         const char *dangling_msg = dry_run
1180                 ? " %s will become dangling!\n"
1181                 : " %s has become dangling!\n";
1182
1183         memset(&states, 0, sizeof(states));
1184         get_remote_ref_states(remote, &states, GET_REF_STATES);
1185
1186         if (states.stale.nr) {
1187                 printf("Pruning %s\n", remote);
1188                 printf("URL: %s\n",
1189                        states.remote->url_nr
1190                        ? states.remote->url[0]
1191                        : "(no URL)");
1192         }
1193
1194         for (i = 0; i < states.stale.nr; i++) {
1195                 const char *refname = states.stale.items[i].util;
1196
1197                 if (!dry_run)
1198                         result |= delete_ref(refname, NULL, 0);
1199
1200                 printf(" * [%s] %s\n", dry_run ? "would prune" : "pruned",
1201                        abbrev_ref(refname, "refs/remotes/"));
1202                 warn_dangling_symref(stdout, dangling_msg, refname);
1203         }
1204
1205         free_remote_ref_states(&states);
1206         return result;
1207 }
1208
1209 static int get_remote_default(const char *key, const char *value, void *priv)
1210 {
1211         if (strcmp(key, "remotes.default") == 0) {
1212                 int *found = priv;
1213                 *found = 1;
1214         }
1215         return 0;
1216 }
1217
1218 static int update(int argc, const char **argv)
1219 {
1220         int i, prune = 0;
1221         struct option options[] = {
1222                 OPT_BOOLEAN('p', "prune", &prune,
1223                             "prune remotes after fetching"),
1224                 OPT_END()
1225         };
1226         const char **fetch_argv;
1227         int fetch_argc = 0;
1228         int default_defined = 0;
1229
1230         fetch_argv = xmalloc(sizeof(char *) * (argc+5));
1231
1232         argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1233                              PARSE_OPT_KEEP_ARGV0);
1234
1235         fetch_argv[fetch_argc++] = "fetch";
1236
1237         if (prune)
1238                 fetch_argv[fetch_argc++] = "--prune";
1239         if (verbose)
1240                 fetch_argv[fetch_argc++] = "-v";
1241         if (argc < 2) {
1242                 fetch_argv[fetch_argc++] = "default";
1243         } else {
1244                 fetch_argv[fetch_argc++] = "--multiple";
1245                 for (i = 1; i < argc; i++)
1246                         fetch_argv[fetch_argc++] = argv[i];
1247         }
1248
1249         if (strcmp(fetch_argv[fetch_argc-1], "default") == 0) {
1250                 git_config(get_remote_default, &default_defined);
1251                 if (!default_defined)
1252                         fetch_argv[fetch_argc-1] = "--all";
1253         }
1254
1255         fetch_argv[fetch_argc] = NULL;
1256
1257         return run_command_v_opt(fetch_argv, RUN_GIT_CMD);
1258 }
1259
1260 static int get_one_entry(struct remote *remote, void *priv)
1261 {
1262         struct string_list *list = priv;
1263         struct strbuf url_buf = STRBUF_INIT;
1264         const char **url;
1265         int i, url_nr;
1266
1267         if (remote->url_nr > 0) {
1268                 strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1269                 string_list_append(remote->name, list)->util =
1270                                 strbuf_detach(&url_buf, NULL);
1271         } else
1272                 string_list_append(remote->name, list)->util = NULL;
1273         if (remote->pushurl_nr) {
1274                 url = remote->pushurl;
1275                 url_nr = remote->pushurl_nr;
1276         } else {
1277                 url = remote->url;
1278                 url_nr = remote->url_nr;
1279         }
1280         for (i = 0; i < url_nr; i++)
1281         {
1282                 strbuf_addf(&url_buf, "%s (push)", url[i]);
1283                 string_list_append(remote->name, list)->util =
1284                                 strbuf_detach(&url_buf, NULL);
1285         }
1286
1287         return 0;
1288 }
1289
1290 static int show_all(void)
1291 {
1292         struct string_list list = { NULL, 0, 0 };
1293         int result;
1294
1295         list.strdup_strings = 1;
1296         result = for_each_remote(get_one_entry, &list);
1297
1298         if (!result) {
1299                 int i;
1300
1301                 sort_string_list(&list);
1302                 for (i = 0; i < list.nr; i++) {
1303                         struct string_list_item *item = list.items + i;
1304                         if (verbose)
1305                                 printf("%s\t%s\n", item->string,
1306                                         item->util ? (const char *)item->util : "");
1307                         else {
1308                                 if (i && !strcmp((item - 1)->string, item->string))
1309                                         continue;
1310                                 printf("%s\n", item->string);
1311                         }
1312                 }
1313         }
1314         string_list_clear(&list, 1);
1315         return result;
1316 }
1317
1318 int cmd_remote(int argc, const char **argv, const char *prefix)
1319 {
1320         struct option options[] = {
1321                 OPT_BOOLEAN('v', "verbose", &verbose, "be verbose; must be placed before a subcommand"),
1322                 OPT_END()
1323         };
1324         int result;
1325
1326         argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1327                 PARSE_OPT_STOP_AT_NON_OPTION);
1328
1329         if (argc < 1)
1330                 result = show_all();
1331         else if (!strcmp(argv[0], "add"))
1332                 result = add(argc, argv);
1333         else if (!strcmp(argv[0], "rename"))
1334                 result = mv(argc, argv);
1335         else if (!strcmp(argv[0], "rm"))
1336                 result = rm(argc, argv);
1337         else if (!strcmp(argv[0], "set-head"))
1338                 result = set_head(argc, argv);
1339         else if (!strcmp(argv[0], "show"))
1340                 result = show(argc, argv);
1341         else if (!strcmp(argv[0], "prune"))
1342                 result = prune(argc, argv);
1343         else if (!strcmp(argv[0], "update"))
1344                 result = update(argc, argv);
1345         else {
1346                 error("Unknown subcommand: %s", argv[0]);
1347                 usage_with_options(builtin_remote_usage, options);
1348         }
1349
1350         return result ? 1 : 0;
1351 }