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 handle_one_branch(const char *refname,
 265         const unsigned char *sha1, int flags, void *cb_data)
 266 {
 267         struct ref_states *states = cb_data;
 268         struct refspec refspec;
 269
 270         memset(&refspec, 0, sizeof(refspec));
 271         refspec.dst = (char *)refname;
 272         if (!remote_find_tracking(states->remote, &refspec)) {
 273                 struct string_list_item *item;
 274                 const char *name = abbrev_branch(refspec.src);
 275                 /* symbolic refs pointing nowhere were handled already */
 276                 if ((flags & REF_ISSYMREF) ||
 277                     string_list_has_string(&states->tracked, name) ||
 278                     string_list_has_string(&states->new, name))
 279                         return 0;
 280                 item = string_list_append(name, &states->stale);
 281                 item->util = xstrdup(refname);
 282         }
 283         return 0;
 284 }
 285
 286 static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 287 {
 288         struct ref *fetch_map = NULL, **tail = &fetch_map;
 289         struct ref *ref;
 290         int i;
 291
 292         for (i = 0; i < states->remote->fetch_refspec_nr; i++)
 293                 if (get_fetch_map(remote_refs, states->remote->fetch + i, &tail, 1))
 294                         die("Could not get fetch map for refspec %s",
 295                                 states->remote->fetch_refspec[i]);
 296
 297         states->new.strdup_strings = states->tracked.strdup_strings = 1;
 298         for (ref = fetch_map; ref; ref = ref->next) {
 299                 unsigned char sha1[20];
 300                 if (!ref->peer_ref || read_ref(ref->peer_ref->name, sha1))
 301                         string_list_append(abbrev_branch(ref->name), &states->new);
 302                 else
 303                         string_list_append(abbrev_branch(ref->name), &states->tracked);
 304         }
 305         free_refs(fetch_map);
 306
 307         sort_string_list(&states->new);
 308         sort_string_list(&states->tracked);
 309         for_each_ref(handle_one_branch, states);
 310         sort_string_list(&states->stale);
 311
 312         return 0;
 313 }
 314
 315 struct push_info {
 316         char *dest;
 317         int forced;
 318         enum {
 319                 PUSH_STATUS_CREATE = 0,
 320                 PUSH_STATUS_DELETE,
 321                 PUSH_STATUS_UPTODATE,
 322                 PUSH_STATUS_FASTFORWARD,
 323                 PUSH_STATUS_OUTOFDATE,
 324                 PUSH_STATUS_NOTQUERIED,
 325         } status;
 326 };
 327
 328 static int get_push_ref_states(const struct ref *remote_refs,
 329         struct ref_states *states)
 330 {
 331         struct remote *remote = states->remote;
 332         struct ref *ref, *local_refs, *push_map;
 333         if (remote->mirror)
 334                 return 0;
 335
 336         local_refs = get_local_heads();
 337         push_map = copy_ref_list(remote_refs);
 338
 339         match_refs(local_refs, &push_map, remote->push_refspec_nr,
 340                    remote->push_refspec, MATCH_REFS_NONE);
 341
 342         states->push.strdup_strings = 1;
 343         for (ref = push_map; ref; ref = ref->next) {
 344                 struct string_list_item *item;
 345                 struct push_info *info;
 346
 347                 if (!ref->peer_ref)
 348                         continue;
 349                 hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
 350
 351                 item = string_list_append(abbrev_branch(ref->peer_ref->name),
 352                                           &states->push);
 353                 item->util = xcalloc(sizeof(struct push_info), 1);
 354                 info = item->util;
 355                 info->forced = ref->force;
 356                 info->dest = xstrdup(abbrev_branch(ref->name));
 357
 358                 if (is_null_sha1(ref->new_sha1)) {
 359                         info->status = PUSH_STATUS_DELETE;
 360                 } else if (!hashcmp(ref->old_sha1, ref->new_sha1))
 361                         info->status = PUSH_STATUS_UPTODATE;
 362                 else if (is_null_sha1(ref->old_sha1))
 363                         info->status = PUSH_STATUS_CREATE;
 364                 else if (has_sha1_file(ref->old_sha1) &&
 365                          ref_newer(ref->new_sha1, ref->old_sha1))
 366                         info->status = PUSH_STATUS_FASTFORWARD;
 367                 else
 368                         info->status = PUSH_STATUS_OUTOFDATE;
 369         }
 370         free_refs(local_refs);
 371         free_refs(push_map);
 372         return 0;
 373 }
 374
 375 static int get_push_ref_states_noquery(struct ref_states *states)
 376 {
 377         int i;
 378         struct remote *remote = states->remote;
 379         struct string_list_item *item;
 380         struct push_info *info;
 381
 382         if (remote->mirror)
 383                 return 0;
 384
 385         states->push.strdup_strings = 1;
 386         if (!remote->push_refspec_nr) {
 387                 item = string_list_append("(matching)", &states->push);
 388                 info = item->util = xcalloc(sizeof(struct push_info), 1);
 389                 info->status = PUSH_STATUS_NOTQUERIED;
 390                 info->dest = xstrdup(item->string);
 391         }
 392         for (i = 0; i < remote->push_refspec_nr; i++) {
 393                 struct refspec *spec = remote->push + i;
 394                 if (spec->matching)
 395                         item = string_list_append("(matching)", &states->push);
 396                 else if (strlen(spec->src))
 397                         item = string_list_append(spec->src, &states->push);
 398                 else
 399                         item = string_list_append("(delete)", &states->push);
 400
 401                 info = item->util = xcalloc(sizeof(struct push_info), 1);
 402                 info->forced = spec->force;
 403                 info->status = PUSH_STATUS_NOTQUERIED;
 404                 info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 405         }
 406         return 0;
 407 }
 408
 409 static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 410 {
 411         struct ref *ref, *matches;
 412         struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 413         struct refspec refspec;
 414
 415         refspec.force = 0;
 416         refspec.pattern = 1;
 417         refspec.src = refspec.dst = "refs/heads/*";
 418         states->heads.strdup_strings = 1;
 419         get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 420         matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 421                                     fetch_map, 1);
 422         for (ref = matches; ref; ref = ref->next)
 423                 string_list_append(abbrev_branch(ref->name), &states->heads);
 424
 425         free_refs(fetch_map);
 426         free_refs(matches);
 427
 428         return 0;
 429 }
 430
 431 struct known_remote {
 432         struct known_remote *next;
 433         struct remote *remote;
 434 };
 435
 436 struct known_remotes {
 437         struct remote *to_delete;
 438         struct known_remote *list;
 439 };
 440
 441 static int add_known_remote(struct remote *remote, void *cb_data)
 442 {
 443         struct known_remotes *all = cb_data;
 444         struct known_remote *r;
 445
 446         if (!strcmp(all->to_delete->name, remote->name))
 447                 return 0;
 448
 449         r = xmalloc(sizeof(*r));
 450         r->remote = remote;
 451         r->next = all->list;
 452         all->list = r;
 453         return 0;
 454 }
 455
 456 struct branches_for_remote {
 457         struct remote *remote;
 458         struct string_list *branches, *skipped;
 459         struct known_remotes *keep;
 460 };
 461
 462 static int add_branch_for_removal(const char *refname,
 463         const unsigned char *sha1, int flags, void *cb_data)
 464 {
 465         struct branches_for_remote *branches = cb_data;
 466         struct refspec refspec;
 467         struct string_list_item *item;
 468         struct known_remote *kr;
 469
 470         memset(&refspec, 0, sizeof(refspec));
 471         refspec.dst = (char *)refname;
 472         if (remote_find_tracking(branches->remote, &refspec))
 473                 return 0;
 474
 475         /* don't delete a branch if another remote also uses it */
 476         for (kr = branches->keep->list; kr; kr = kr->next) {
 477                 memset(&refspec, 0, sizeof(refspec));
 478                 refspec.dst = (char *)refname;
 479                 if (!remote_find_tracking(kr->remote, &refspec))
 480                         return 0;
 481         }
 482
 483         /* don't delete non-remote refs */
 484         if (prefixcmp(refname, "refs/remotes")) {
 485                 /* advise user how to delete local branches */
 486                 if (!prefixcmp(refname, "refs/heads/"))
 487                         string_list_append(abbrev_branch(refname),
 488                                            branches->skipped);
 489                 /* silently skip over other non-remote refs */
 490                 return 0;
 491         }
 492
 493         /* make sure that symrefs are deleted */
 494         if (flags & REF_ISSYMREF)
 495                 return unlink(git_path("%s", refname));
 496
 497         item = string_list_append(refname, branches->branches);
 498         item->util = xmalloc(20);
 499         hashcpy(item->util, sha1);
 500
 501         return 0;
 502 }
 503
 504 struct rename_info {
 505         const char *old;
 506         const char *new;
 507         struct string_list *remote_branches;
 508 };
 509
 510 static int read_remote_branches(const char *refname,
 511         const unsigned char *sha1, int flags, void *cb_data)
 512 {
 513         struct rename_info *rename = cb_data;
 514         struct strbuf buf = STRBUF_INIT;
 515         struct string_list_item *item;
 516         int flag;
 517         unsigned char orig_sha1[20];
 518         const char *symref;
 519
 520         strbuf_addf(&buf, "refs/remotes/%s", rename->old);
 521         if (!prefixcmp(refname, buf.buf)) {
 522                 item = string_list_append(xstrdup(refname), rename->remote_branches);
 523                 symref = resolve_ref(refname, orig_sha1, 1, &flag);
 524                 if (flag & REF_ISSYMREF)
 525                         item->util = xstrdup(symref);
 526                 else
 527                         item->util = NULL;
 528         }
 529
 530         return 0;
 531 }
 532
 533 static int migrate_file(struct remote *remote)
 534 {
 535         struct strbuf buf = STRBUF_INIT;
 536         int i;
 537         char *path = NULL;
 538
 539         strbuf_addf(&buf, "remote.%s.url", remote->name);
 540         for (i = 0; i < remote->url_nr; i++)
 541                 if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0))
 542                         return error("Could not append '%s' to '%s'",
 543                                         remote->url[i], buf.buf);
 544         strbuf_reset(&buf);
 545         strbuf_addf(&buf, "remote.%s.push", remote->name);
 546         for (i = 0; i < remote->push_refspec_nr; i++)
 547                 if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0))
 548                         return error("Could not append '%s' to '%s'",
 549                                         remote->push_refspec[i], buf.buf);
 550         strbuf_reset(&buf);
 551         strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 552         for (i = 0; i < remote->fetch_refspec_nr; i++)
 553                 if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0))
 554                         return error("Could not append '%s' to '%s'",
 555                                         remote->fetch_refspec[i], buf.buf);
 556         if (remote->origin == REMOTE_REMOTES)
 557                 path = git_path("remotes/%s", remote->name);
 558         else if (remote->origin == REMOTE_BRANCHES)
 559                 path = git_path("branches/%s", remote->name);
 560         if (path)
 561                 unlink_or_warn(path);
 562         return 0;
 563 }
 564
 565 static int mv(int argc, const char **argv)
 566 {
 567         struct option options[] = {
 568                 OPT_END()
 569         };
 570         struct remote *oldremote, *newremote;
 571         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT;
 572         struct string_list remote_branches = { NULL, 0, 0, 0 };
 573         struct rename_info rename;
 574         int i;
 575
 576         if (argc != 3)
 577                 usage_with_options(builtin_remote_rename_usage, options);
 578
 579         rename.old = argv[1];
 580         rename.new = argv[2];
 581         rename.remote_branches = &remote_branches;
 582
 583         oldremote = remote_get(rename.old);
 584         if (!oldremote)
 585                 die("No such remote: %s", rename.old);
 586
 587         if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
 588                 return migrate_file(oldremote);
 589
 590         newremote = remote_get(rename.new);
 591         if (newremote && (newremote->url_nr > 1 || newremote->fetch_refspec_nr))
 592                 die("remote %s already exists.", rename.new);
 593
 594         strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
 595         if (!valid_fetch_refspec(buf.buf))
 596                 die("'%s' is not a valid remote name", rename.new);
 597
 598         strbuf_reset(&buf);
 599         strbuf_addf(&buf, "remote.%s", rename.old);
 600         strbuf_addf(&buf2, "remote.%s", rename.new);
 601         if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 602                 return error("Could not rename config section '%s' to '%s'",
 603                                 buf.buf, buf2.buf);
 604
 605         strbuf_reset(&buf);
 606         strbuf_addf(&buf, "remote.%s.fetch", rename.new);
 607         if (git_config_set_multivar(buf.buf, NULL, NULL, 1))
 608                 return error("Could not remove config section '%s'", buf.buf);
 609         for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 610                 char *ptr;
 611
 612                 strbuf_reset(&buf2);
 613                 strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 614                 ptr = strstr(buf2.buf, rename.old);
 615                 if (ptr)
 616                         strbuf_splice(&buf2, ptr-buf2.buf, strlen(rename.old),
 617                                         rename.new, strlen(rename.new));
 618                 if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 619                         return error("Could not append '%s'", buf.buf);
 620         }
 621
 622         read_branches();
 623         for (i = 0; i < branch_list.nr; i++) {
 624                 struct string_list_item *item = branch_list.items + i;
 625                 struct branch_info *info = item->util;
 626                 if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 627                         strbuf_reset(&buf);
 628                         strbuf_addf(&buf, "branch.%s.remote", item->string);
 629                         if (git_config_set(buf.buf, rename.new)) {
 630                                 return error("Could not set '%s'", buf.buf);
 631                         }
 632                 }
 633         }
 634
 635         /*
 636          * First remove symrefs, then rename the rest, finally create
 637          * the new symrefs.
 638          */
 639         for_each_ref(read_remote_branches, &rename);
 640         for (i = 0; i < remote_branches.nr; i++) {
 641                 struct string_list_item *item = remote_branches.items + i;
 642                 int flag = 0;
 643                 unsigned char sha1[20];
 644
 645                 resolve_ref(item->string, sha1, 1, &flag);
 646                 if (!(flag & REF_ISSYMREF))
 647                         continue;
 648                 if (delete_ref(item->string, NULL, REF_NODEREF))
 649                         die("deleting '%s' failed", item->string);
 650         }
 651         for (i = 0; i < remote_branches.nr; i++) {
 652                 struct string_list_item *item = remote_branches.items + i;
 653
 654                 if (item->util)
 655                         continue;
 656                 strbuf_reset(&buf);
 657                 strbuf_addstr(&buf, item->string);
 658                 strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 659                                 rename.new, strlen(rename.new));
 660                 strbuf_reset(&buf2);
 661                 strbuf_addf(&buf2, "remote: renamed %s to %s",
 662                                 item->string, buf.buf);
 663                 if (rename_ref(item->string, buf.buf, buf2.buf))
 664                         die("renaming '%s' failed", item->string);
 665         }
 666         for (i = 0; i < remote_branches.nr; i++) {
 667                 struct string_list_item *item = remote_branches.items + i;
 668
 669                 if (!item->util)
 670                         continue;
 671                 strbuf_reset(&buf);
 672                 strbuf_addstr(&buf, item->string);
 673                 strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 674                                 rename.new, strlen(rename.new));
 675                 strbuf_reset(&buf2);
 676                 strbuf_addstr(&buf2, item->util);
 677                 strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
 678                                 rename.new, strlen(rename.new));
 679                 strbuf_reset(&buf3);
 680                 strbuf_addf(&buf3, "remote: renamed %s to %s",
 681                                 item->string, buf.buf);
 682                 if (create_symref(buf.buf, buf2.buf, buf3.buf))
 683                         die("creating '%s' failed", buf.buf);
 684         }
 685         return 0;
 686 }
 687
 688 static int remove_branches(struct string_list *branches)
 689 {
 690         int i, result = 0;
 691         for (i = 0; i < branches->nr; i++) {
 692                 struct string_list_item *item = branches->items + i;
 693                 const char *refname = item->string;
 694                 unsigned char *sha1 = item->util;
 695
 696                 if (delete_ref(refname, sha1, 0))
 697                         result |= error("Could not remove branch %s", refname);
 698         }
 699         return result;
 700 }
 701
 702 static int rm(int argc, const char **argv)
 703 {
 704         struct option options[] = {
 705                 OPT_END()
 706         };
 707         struct remote *remote;
 708         struct strbuf buf = STRBUF_INIT;
 709         struct known_remotes known_remotes = { NULL, NULL };
 710         struct string_list branches = { NULL, 0, 0, 1 };
 711         struct string_list skipped = { NULL, 0, 0, 1 };
 712         struct branches_for_remote cb_data = {
 713                 NULL, &branches, &skipped, &known_remotes
 714         };
 715         int i, result;
 716
 717         if (argc != 2)
 718                 usage_with_options(builtin_remote_rm_usage, options);
 719
 720         remote = remote_get(argv[1]);
 721         if (!remote)
 722                 die("No such remote: %s", argv[1]);
 723
 724         known_remotes.to_delete = remote;
 725         for_each_remote(add_known_remote, &known_remotes);
 726
 727         strbuf_addf(&buf, "remote.%s", remote->name);
 728         if (git_config_rename_section(buf.buf, NULL) < 1)
 729                 return error("Could not remove config section '%s'", buf.buf);
 730
 731         read_branches();
 732         for (i = 0; i < branch_list.nr; i++) {
 733                 struct string_list_item *item = branch_list.items + i;
 734                 struct branch_info *info = item->util;
 735                 if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 736                         const char *keys[] = { "remote", "merge", NULL }, **k;
 737                         for (k = keys; *k; k++) {
 738                                 strbuf_reset(&buf);
 739                                 strbuf_addf(&buf, "branch.%s.%s",
 740                                                 item->string, *k);
 741                                 if (git_config_set(buf.buf, NULL)) {
 742                                         strbuf_release(&buf);
 743                                         return -1;
 744                                 }
 745                         }
 746                 }
 747         }
 748
 749         /*
 750          * We cannot just pass a function to for_each_ref() which deletes
 751          * the branches one by one, since for_each_ref() relies on cached
 752          * refs, which are invalidated when deleting a branch.
 753          */
 754         cb_data.remote = remote;
 755         result = for_each_ref(add_branch_for_removal, &cb_data);
 756         strbuf_release(&buf);
 757
 758         if (!result)
 759                 result = remove_branches(&branches);
 760         string_list_clear(&branches, 1);
 761
 762         if (skipped.nr) {
 763                 fprintf(stderr, skipped.nr == 1 ?
 764                         "Note: A non-remote branch was not removed; "
 765                         "to delete it, use:\n" :
 766                         "Note: Non-remote branches were not removed; "
 767                         "to delete them, use:\n");
 768                 for (i = 0; i < skipped.nr; i++)
 769                         fprintf(stderr, "  git branch -d %s\n",
 770                                 skipped.items[i].string);
 771         }
 772         string_list_clear(&skipped, 0);
 773
 774         return result;
 775 }
 776
 777 static void clear_push_info(void *util, const char *string)
 778 {
 779         struct push_info *info = util;
 780         free(info->dest);
 781         free(info);
 782 }
 783
 784 static void free_remote_ref_states(struct ref_states *states)
 785 {
 786         string_list_clear(&states->new, 0);
 787         string_list_clear(&states->stale, 0);
 788         string_list_clear(&states->tracked, 0);
 789         string_list_clear(&states->heads, 0);
 790         string_list_clear_func(&states->push, clear_push_info);
 791 }
 792
 793 static int append_ref_to_tracked_list(const char *refname,
 794         const unsigned char *sha1, int flags, void *cb_data)
 795 {
 796         struct ref_states *states = cb_data;
 797         struct refspec refspec;
 798
 799         if (flags & REF_ISSYMREF)
 800                 return 0;
 801
 802         memset(&refspec, 0, sizeof(refspec));
 803         refspec.dst = (char *)refname;
 804         if (!remote_find_tracking(states->remote, &refspec))
 805                 string_list_append(abbrev_branch(refspec.src), &states->tracked);
 806
 807         return 0;
 808 }
 809
 810 static int get_remote_ref_states(const char *name,
 811                                  struct ref_states *states,
 812                                  int query)
 813 {
 814         struct transport *transport;
 815         const struct ref *remote_refs;
 816
 817         states->remote = remote_get(name);
 818         if (!states->remote)
 819                 return error("No such remote: %s", name);
 820
 821         read_branches();
 822
 823         if (query) {
 824                 transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 825                         states->remote->url[0] : NULL);
 826                 remote_refs = transport_get_remote_refs(transport);
 827                 transport_disconnect(transport);
 828
 829                 states->queried = 1;
 830                 if (query & GET_REF_STATES)
 831                         get_ref_states(remote_refs, states);
 832                 if (query & GET_HEAD_NAMES)
 833                         get_head_names(remote_refs, states);
 834                 if (query & GET_PUSH_REF_STATES)
 835                         get_push_ref_states(remote_refs, states);
 836         } else {
 837                 for_each_ref(append_ref_to_tracked_list, states);
 838                 sort_string_list(&states->tracked);
 839                 get_push_ref_states_noquery(states);
 840         }
 841
 842         return 0;
 843 }
 844
 845 struct show_info {
 846         struct string_list *list;
 847         struct ref_states *states;
 848         int width, width2;
 849         int any_rebase;
 850 };
 851
 852 static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 853 {
 854         struct show_info *info = cb_data;
 855         int n = strlen(item->string);
 856         if (n > info->width)
 857                 info->width = n;
 858         string_list_insert(item->string, info->list);
 859         return 0;
 860 }
 861
 862 static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 863 {
 864         struct show_info *info = cb_data;
 865         struct ref_states *states = info->states;
 866         const char *name = item->string;
 867
 868         if (states->queried) {
 869                 const char *fmt = "%s";
 870                 const char *arg = "";
 871                 if (string_list_has_string(&states->new, name)) {
 872                         fmt = " new (next fetch will store in remotes/%s)";
 873                         arg = states->remote->name;
 874                 } else if (string_list_has_string(&states->tracked, name))
 875                         arg = " tracked";
 876                 else if (string_list_has_string(&states->stale, name))
 877                         arg = " stale (use 'git remote prune' to remove)";
 878                 else
 879                         arg = " ???";
 880                 printf("    %-*s", info->width, name);
 881                 printf(fmt, arg);
 882                 printf("\n");
 883         } else
 884                 printf("    %s\n", name);
 885
 886         return 0;
 887 }
 888
 889 static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 890 {
 891         struct show_info *show_info = cb_data;
 892         struct ref_states *states = show_info->states;
 893         struct branch_info *branch_info = branch_item->util;
 894         struct string_list_item *item;
 895         int n;
 896
 897         if (!branch_info->merge.nr || !branch_info->remote_name ||
 898             strcmp(states->remote->name, branch_info->remote_name))
 899                 return 0;
 900         if ((n = strlen(branch_item->string)) > show_info->width)
 901                 show_info->width = n;
 902         if (branch_info->rebase)
 903                 show_info->any_rebase = 1;
 904
 905         item = string_list_insert(branch_item->string, show_info->list);
 906         item->util = branch_info;
 907
 908         return 0;
 909 }
 910
 911 static int show_local_info_item(struct string_list_item *item, void *cb_data)
 912 {
 913         struct show_info *show_info = cb_data;
 914         struct branch_info *branch_info = item->util;
 915         struct string_list *merge = &branch_info->merge;
 916         const char *also;
 917         int i;
 918
 919         if (branch_info->rebase && branch_info->merge.nr > 1) {
 920                 error("invalid branch.%s.merge; cannot rebase onto > 1 branch",
 921                         item->string);
 922                 return 0;
 923         }
 924
 925         printf("    %-*s ", show_info->width, item->string);
 926         if (branch_info->rebase) {
 927                 printf("rebases onto remote %s\n", merge->items[0].string);
 928                 return 0;
 929         } else if (show_info->any_rebase) {
 930                 printf(" merges with remote %s\n", merge->items[0].string);
 931                 also = "    and with remote";
 932         } else {
 933                 printf("merges with remote %s\n", merge->items[0].string);
 934                 also = "   and with remote";
 935         }
 936         for (i = 1; i < merge->nr; i++)
 937                 printf("    %-*s %s %s\n", show_info->width, "", also,
 938                        merge->items[i].string);
 939
 940         return 0;
 941 }
 942
 943 static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
 944 {
 945         struct show_info *show_info = cb_data;
 946         struct push_info *push_info = push_item->util;
 947         struct string_list_item *item;
 948         int n;
 949         if ((n = strlen(push_item->string)) > show_info->width)
 950                 show_info->width = n;
 951         if ((n = strlen(push_info->dest)) > show_info->width2)
 952                 show_info->width2 = n;
 953         item = string_list_append(push_item->string, show_info->list);
 954         item->util = push_item->util;
 955         return 0;
 956 }
 957
 958 /*
 959  * Sorting comparison for a string list that has push_info
 960  * structs in its util field
 961  */
 962 static int cmp_string_with_push(const void *va, const void *vb)
 963 {
 964         const struct string_list_item *a = va;
 965         const struct string_list_item *b = vb;
 966         const struct push_info *a_push = a->util;
 967         const struct push_info *b_push = b->util;
 968         int cmp = strcmp(a->string, b->string);
 969         return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
 970 }
 971
 972 static int show_push_info_item(struct string_list_item *item, void *cb_data)
 973 {
 974         struct show_info *show_info = cb_data;
 975         struct push_info *push_info = item->util;
 976         char *src = item->string, *status = NULL;
 977
 978         switch (push_info->status) {
 979         case PUSH_STATUS_CREATE:
 980                 status = "create";
 981                 break;
 982         case PUSH_STATUS_DELETE:
 983                 status = "delete";
 984                 src = "(none)";
 985                 break;
 986         case PUSH_STATUS_UPTODATE:
 987                 status = "up to date";
 988                 break;
 989         case PUSH_STATUS_FASTFORWARD:
 990                 status = "fast forwardable";
 991                 break;
 992         case PUSH_STATUS_OUTOFDATE:
 993                 status = "local out of date";
 994                 break;
 995         case PUSH_STATUS_NOTQUERIED:
 996                 break;
 997         }
 998         if (status)
 999                 printf("    %-*s %s to %-*s (%s)\n", show_info->width, src,
1000                         push_info->forced ? "forces" : "pushes",
1001                         show_info->width2, push_info->dest, status);
1002         else
1003                 printf("    %-*s %s to %s\n", show_info->width, src,
1004                         push_info->forced ? "forces" : "pushes",
1005                         push_info->dest);
1006         return 0;
1007 }
1008
1009 static int show(int argc, const char **argv)
1010 {
1011         int no_query = 0, result = 0, query_flag = 0;
1012         struct option options[] = {
1013                 OPT_BOOLEAN('n', NULL, &no_query, "do not query remotes"),
1014                 OPT_END()
1015         };
1016         struct ref_states states;
1017         struct string_list info_list = { NULL, 0, 0, 0 };
1018         struct show_info info;
1019
1020         argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1021                              0);
1022
1023         if (argc < 1)
1024                 return show_all();
1025
1026         if (!no_query)
1027                 query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1028
1029         memset(&states, 0, sizeof(states));
1030         memset(&info, 0, sizeof(info));
1031         info.states = &states;
1032         info.list = &info_list;
1033         for (; argc; argc--, argv++) {
1034                 int i;
1035                 const char **url;
1036                 int url_nr;
1037
1038                 get_remote_ref_states(*argv, &states, query_flag);
1039
1040                 printf("* remote %s\n", *argv);
1041                 printf("  Fetch URL: %s\n", states.remote->url_nr > 0 ?
1042                         states.remote->url[0] : "(no URL)");
1043                 if (states.remote->pushurl_nr) {
1044                         url = states.remote->pushurl;
1045                         url_nr = states.remote->pushurl_nr;
1046                 } else {
1047                         url = states.remote->url;
1048                         url_nr = states.remote->url_nr;
1049                 }
1050                 for (i=0; i < url_nr; i++)
1051                         printf("  Push  URL: %s\n", url[i]);
1052                 if (!i)
1053                         printf("  Push  URL: %s\n", "(no URL)");
1054                 if (no_query)
1055                         printf("  HEAD branch: (not queried)\n");
1056                 else if (!states.heads.nr)
1057                         printf("  HEAD branch: (unknown)\n");
1058                 else if (states.heads.nr == 1)
1059                         printf("  HEAD branch: %s\n", states.heads.items[0].string);
1060                 else {
1061                         printf("  HEAD branch (remote HEAD is ambiguous,"
1062                                " may be one of the following):\n");
1063                         for (i = 0; i < states.heads.nr; i++)
1064                                 printf("    %s\n", states.heads.items[i].string);
1065                 }
1066
1067                 /* remote branch info */
1068                 info.width = 0;
1069                 for_each_string_list(add_remote_to_show_info, &states.new, &info);
1070                 for_each_string_list(add_remote_to_show_info, &states.tracked, &info);
1071                 for_each_string_list(add_remote_to_show_info, &states.stale, &info);
1072                 if (info.list->nr)
1073                         printf("  Remote branch%s:%s\n",
1074                                info.list->nr > 1 ? "es" : "",
1075                                 no_query ? " (status not queried)" : "");
1076                 for_each_string_list(show_remote_info_item, info.list, &info);
1077                 string_list_clear(info.list, 0);
1078
1079                 /* git pull info */
1080                 info.width = 0;
1081                 info.any_rebase = 0;
1082                 for_each_string_list(add_local_to_show_info, &branch_list, &info);
1083                 if (info.list->nr)
1084                         printf("  Local branch%s configured for 'git pull':\n",
1085                                info.list->nr > 1 ? "es" : "");
1086                 for_each_string_list(show_local_info_item, info.list, &info);
1087                 string_list_clear(info.list, 0);
1088
1089                 /* git push info */
1090                 if (states.remote->mirror)
1091                         printf("  Local refs will be mirrored by 'git push'\n");
1092
1093                 info.width = info.width2 = 0;
1094                 for_each_string_list(add_push_to_show_info, &states.push, &info);
1095                 qsort(info.list->items, info.list->nr,
1096                         sizeof(*info.list->items), cmp_string_with_push);
1097                 if (info.list->nr)
1098                         printf("  Local ref%s configured for 'git push'%s:\n",
1099                                 info.list->nr > 1 ? "s" : "",
1100                                 no_query ? " (status not queried)" : "");
1101                 for_each_string_list(show_push_info_item, info.list, &info);
1102                 string_list_clear(info.list, 0);
1103
1104                 free_remote_ref_states(&states);
1105         }
1106
1107         return result;
1108 }
1109
1110 static int set_head(int argc, const char **argv)
1111 {
1112         int i, opt_a = 0, opt_d = 0, result = 0;
1113         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1114         char *head_name = NULL;
1115
1116         struct option options[] = {
1117                 OPT_BOOLEAN('a', "auto", &opt_a,
1118                             "set refs/remotes/<name>/HEAD according to remote"),
1119                 OPT_BOOLEAN('d', "delete", &opt_d,
1120                             "delete refs/remotes/<name>/HEAD"),
1121                 OPT_END()
1122         };
1123         argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1124                              0);
1125         if (argc)
1126                 strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1127
1128         if (!opt_a && !opt_d && argc == 2) {
1129                 head_name = xstrdup(argv[1]);
1130         } else if (opt_a && !opt_d && argc == 1) {
1131                 struct ref_states states;
1132                 memset(&states, 0, sizeof(states));
1133                 get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1134                 if (!states.heads.nr)
1135                         result |= error("Cannot determine remote HEAD");
1136                 else if (states.heads.nr > 1) {
1137                         result |= error("Multiple remote HEAD branches. "
1138                                         "Please choose one explicitly with:");
1139                         for (i = 0; i < states.heads.nr; i++)
1140                                 fprintf(stderr, "  git remote set-head %s %s\n",
1141                                         argv[0], states.heads.items[i].string);
1142                 } else
1143                         head_name = xstrdup(states.heads.items[0].string);
1144                 free_remote_ref_states(&states);
1145         } else if (opt_d && !opt_a && argc == 1) {
1146                 if (delete_ref(buf.buf, NULL, REF_NODEREF))
1147                         result |= error("Could not delete %s", buf.buf);
1148         } else
1149                 usage_with_options(builtin_remote_sethead_usage, options);
1150
1151         if (head_name) {
1152                 unsigned char sha1[20];
1153                 strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1154                 /* make sure it's valid */
1155                 if (!resolve_ref(buf2.buf, sha1, 1, NULL))
1156                         result |= error("Not a valid ref: %s", buf2.buf);
1157                 else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1158                         result |= error("Could not setup %s", buf.buf);
1159                 if (opt_a)
1160                         printf("%s/HEAD set to %s\n", argv[0], head_name);
1161                 free(head_name);
1162         }
1163
1164         strbuf_release(&buf);
1165         strbuf_release(&buf2);
1166         return result;
1167 }
1168
1169 static int prune(int argc, const char **argv)
1170 {
1171         int dry_run = 0, result = 0;
1172         struct option options[] = {
1173                 OPT__DRY_RUN(&dry_run),
1174                 OPT_END()
1175         };
1176
1177         argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1178                              0);
1179
1180         if (argc < 1)
1181                 usage_with_options(builtin_remote_prune_usage, options);
1182
1183         for (; argc; argc--, argv++)
1184                 result |= prune_remote(*argv, dry_run);
1185
1186         return result;
1187 }
1188
1189 static int prune_remote(const char *remote, int dry_run)
1190 {
1191         int result = 0, i;
1192         struct ref_states states;
1193         const char *dangling_msg = dry_run
1194                 ? " %s will become dangling!\n"
1195                 : " %s has become dangling!\n";
1196
1197         memset(&states, 0, sizeof(states));
1198         get_remote_ref_states(remote, &states, GET_REF_STATES);
1199
1200         if (states.stale.nr) {
1201                 printf("Pruning %s\n", remote);
1202                 printf("URL: %s\n",
1203                        states.remote->url_nr
1204                        ? states.remote->url[0]
1205                        : "(no URL)");
1206         }
1207
1208         for (i = 0; i < states.stale.nr; i++) {
1209                 const char *refname = states.stale.items[i].util;
1210
1211                 if (!dry_run)
1212                         result |= delete_ref(refname, NULL, 0);
1213
1214                 printf(" * [%s] %s\n", dry_run ? "would prune" : "pruned",
1215                        abbrev_ref(refname, "refs/remotes/"));
1216                 warn_dangling_symref(dangling_msg, refname);
1217         }
1218
1219         free_remote_ref_states(&states);
1220         return result;
1221 }
1222
1223 static int get_one_remote_for_update(struct remote *remote, void *priv)
1224 {
1225         struct string_list *list = priv;
1226         if (!remote->skip_default_update)
1227                 string_list_append(remote->name, list);
1228         return 0;
1229 }
1230
1231 static struct remote_group {
1232         const char *name;
1233         struct string_list *list;
1234 } remote_group;
1235
1236 static int get_remote_group(const char *key, const char *value, void *num_hits)
1237 {
1238         if (!prefixcmp(key, "remotes.") &&
1239                         !strcmp(key + 8, remote_group.name)) {
1240                 /* split list by white space */
1241                 int space = strcspn(value, " \t\n");
1242                 while (*value) {
1243                         if (space > 1) {
1244                                 string_list_append(xstrndup(value, space),
1245                                                 remote_group.list);
1246                                 ++*((int *)num_hits);
1247                         }
1248                         value += space + (value[space] != '\0');
1249                         space = strcspn(value, " \t\n");
1250                 }
1251         }
1252
1253         return 0;
1254 }
1255
1256 static int update(int argc, const char **argv)
1257 {
1258         int i, result = 0, prune = 0;
1259         struct string_list list = { NULL, 0, 0, 0 };
1260         static const char *default_argv[] = { NULL, "default", NULL };
1261         struct option options[] = {
1262                 OPT_BOOLEAN('p', "prune", &prune,
1263                             "prune remotes after fetching"),
1264                 OPT_END()
1265         };
1266
1267         argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1268                              PARSE_OPT_KEEP_ARGV0);
1269         if (argc < 2) {
1270                 argc = 2;
1271                 argv = default_argv;
1272         }
1273
1274         remote_group.list = &list;
1275         for (i = 1; i < argc; i++) {
1276                 int groups_found = 0;
1277                 remote_group.name = argv[i];
1278                 result = git_config(get_remote_group, &groups_found);
1279                 if (!groups_found && (i != 1 || strcmp(argv[1], "default"))) {
1280                         struct remote *remote;
1281                         if (!remote_is_configured(argv[i]))
1282                                 die("No such remote or remote group: %s",
1283                                     argv[i]);
1284                         remote = remote_get(argv[i]);
1285                         string_list_append(remote->name, remote_group.list);
1286                 }
1287         }
1288
1289         if (!result && !list.nr  && argc == 2 && !strcmp(argv[1], "default"))
1290                 result = for_each_remote(get_one_remote_for_update, &list);
1291
1292         for (i = 0; i < list.nr; i++) {
1293                 int err = fetch_remote(list.items[i].string);
1294                 result |= err;
1295                 if (!err && prune)
1296                         result |= prune_remote(list.items[i].string, 0);
1297         }
1298
1299         /* all names were strdup()ed or strndup()ed */
1300         list.strdup_strings = 1;
1301         string_list_clear(&list, 0);
1302
1303         return result;
1304 }
1305
1306 static int get_one_entry(struct remote *remote, void *priv)
1307 {
1308         struct string_list *list = priv;
1309         struct strbuf url_buf = STRBUF_INIT;
1310         const char **url;
1311         int i, url_nr;
1312
1313         if (remote->url_nr > 0) {
1314                 strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1315                 string_list_append(remote->name, list)->util =
1316                                 strbuf_detach(&url_buf, NULL);
1317         } else
1318                 string_list_append(remote->name, list)->util = NULL;
1319         if (remote->pushurl_nr) {
1320                 url = remote->pushurl;
1321                 url_nr = remote->pushurl_nr;
1322         } else {
1323                 url = remote->url;
1324                 url_nr = remote->url_nr;
1325         }
1326         for (i = 0; i < url_nr; i++)
1327         {
1328                 strbuf_addf(&url_buf, "%s (push)", url[i]);
1329                 string_list_append(remote->name, list)->util =
1330                                 strbuf_detach(&url_buf, NULL);
1331         }
1332
1333         return 0;
1334 }
1335
1336 static int show_all(void)
1337 {
1338         struct string_list list = { NULL, 0, 0 };
1339         int result;
1340
1341         list.strdup_strings = 1;
1342         result = for_each_remote(get_one_entry, &list);
1343
1344         if (!result) {
1345                 int i;
1346
1347                 sort_string_list(&list);
1348                 for (i = 0; i < list.nr; i++) {
1349                         struct string_list_item *item = list.items + i;
1350                         if (verbose)
1351                                 printf("%s\t%s\n", item->string,
1352                                         item->util ? (const char *)item->util : "");
1353                         else {
1354                                 if (i && !strcmp((item - 1)->string, item->string))
1355                                         continue;
1356                                 printf("%s\n", item->string);
1357                         }
1358                 }
1359         }
1360         string_list_clear(&list, 1);
1361         return result;
1362 }
1363
1364 int cmd_remote(int argc, const char **argv, const char *prefix)
1365 {
1366         struct option options[] = {
1367                 OPT_BOOLEAN('v', "verbose", &verbose, "be verbose; must be placed before a subcommand"),
1368                 OPT_END()
1369         };
1370         int result;
1371
1372         argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1373                 PARSE_OPT_STOP_AT_NON_OPTION);
1374
1375         if (argc < 1)
1376                 result = show_all();
1377         else if (!strcmp(argv[0], "add"))
1378                 result = add(argc, argv);
1379         else if (!strcmp(argv[0], "rename"))
1380                 result = mv(argc, argv);
1381         else if (!strcmp(argv[0], "rm"))
1382                 result = rm(argc, argv);
1383         else if (!strcmp(argv[0], "set-head"))
1384                 result = set_head(argc, argv);
1385         else if (!strcmp(argv[0], "show"))
1386                 result = show(argc, argv);
1387         else if (!strcmp(argv[0], "prune"))
1388                 result = prune(argc, argv);
1389         else if (!strcmp(argv[0], "update"))
1390                 result = update(argc, argv);
1391         else {
1392                 error("Unknown subcommand: %s", argv[0]);
1393                 usage_with_options(builtin_remote_usage, options);
1394         }
1395
1396         return result ? 1 : 0;
1397 }