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