git.oblomov.eu Git - git/blob - builtin/remote.c

   1 #include "builtin.h"
   2 #include "config.h"
   3 #include "parse-options.h"
   4 #include "transport.h"
   5 #include "remote.h"
   6 #include "string-list.h"
   7 #include "strbuf.h"
   8 #include "run-command.h"
   9 #include "refs.h"
  10 #include "argv-array.h"
  11
  12 static const char * const builtin_remote_usage[] = {
  13         N_("git remote [-v | --verbose]"),
  14         N_("git remote add [-t <branch>] [-m <master>] [-f] [--tags | --no-tags] [--mirror=<fetch|push>] <name> <url>"),
  15         N_("git remote rename <old> <new>"),
  16         N_("git remote remove <name>"),
  17         N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
  18         N_("git remote [-v | --verbose] show [-n] <name>"),
  19         N_("git remote prune [-n | --dry-run] <name>"),
  20         N_("git remote [-v | --verbose] update [-p | --prune] [(<group> | <remote>)...]"),
  21         N_("git remote set-branches [--add] <name> <branch>..."),
  22         N_("git remote get-url [--push] [--all] <name>"),
  23         N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
  24         N_("git remote set-url --add <name> <newurl>"),
  25         N_("git remote set-url --delete <name> <url>"),
  26         NULL
  27 };
  28
  29 static const char * const builtin_remote_add_usage[] = {
  30         N_("git remote add [<options>] <name> <url>"),
  31         NULL
  32 };
  33
  34 static const char * const builtin_remote_rename_usage[] = {
  35         N_("git remote rename <old> <new>"),
  36         NULL
  37 };
  38
  39 static const char * const builtin_remote_rm_usage[] = {
  40         N_("git remote remove <name>"),
  41         NULL
  42 };
  43
  44 static const char * const builtin_remote_sethead_usage[] = {
  45         N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
  46         NULL
  47 };
  48
  49 static const char * const builtin_remote_setbranches_usage[] = {
  50         N_("git remote set-branches <name> <branch>..."),
  51         N_("git remote set-branches --add <name> <branch>..."),
  52         NULL
  53 };
  54
  55 static const char * const builtin_remote_show_usage[] = {
  56         N_("git remote show [<options>] <name>"),
  57         NULL
  58 };
  59
  60 static const char * const builtin_remote_prune_usage[] = {
  61         N_("git remote prune [<options>] <name>"),
  62         NULL
  63 };
  64
  65 static const char * const builtin_remote_update_usage[] = {
  66         N_("git remote update [<options>] [<group> | <remote>]..."),
  67         NULL
  68 };
  69
  70 static const char * const builtin_remote_geturl_usage[] = {
  71         N_("git remote get-url [--push] [--all] <name>"),
  72         NULL
  73 };
  74
  75 static const char * const builtin_remote_seturl_usage[] = {
  76         N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
  77         N_("git remote set-url --add <name> <newurl>"),
  78         N_("git remote set-url --delete <name> <url>"),
  79         NULL
  80 };
  81
  82 #define GET_REF_STATES (1<<0)
  83 #define GET_HEAD_NAMES (1<<1)
  84 #define GET_PUSH_REF_STATES (1<<2)
  85
  86 static int verbose;
  87
  88 static int fetch_remote(const char *name)
  89 {
  90         const char *argv[] = { "fetch", name, NULL, NULL };
  91         if (verbose) {
  92                 argv[1] = "-v";
  93                 argv[2] = name;
  94         }
  95         printf_ln(_("Updating %s"), name);
  96         if (run_command_v_opt(argv, RUN_GIT_CMD))
  97                 return error(_("Could not fetch %s"), name);
  98         return 0;
  99 }
 100
 101 enum {
 102         TAGS_UNSET = 0,
 103         TAGS_DEFAULT = 1,
 104         TAGS_SET = 2
 105 };
 106
 107 #define MIRROR_NONE 0
 108 #define MIRROR_FETCH 1
 109 #define MIRROR_PUSH 2
 110 #define MIRROR_BOTH (MIRROR_FETCH|MIRROR_PUSH)
 111
 112 static void add_branch(const char *key, const char *branchname,
 113                        const char *remotename, int mirror, struct strbuf *tmp)
 114 {
 115         strbuf_reset(tmp);
 116         strbuf_addch(tmp, '+');
 117         if (mirror)
 118                 strbuf_addf(tmp, "refs/%s:refs/%s",
 119                                 branchname, branchname);
 120         else
 121                 strbuf_addf(tmp, "refs/heads/%s:refs/remotes/%s/%s",
 122                                 branchname, remotename, branchname);
 123         git_config_set_multivar(key, tmp->buf, "^$", 0);
 124 }
 125
 126 static const char mirror_advice[] =
 127 N_("--mirror is dangerous and deprecated; please\n"
 128    "\t use --mirror=fetch or --mirror=push instead");
 129
 130 static int parse_mirror_opt(const struct option *opt, const char *arg, int not)
 131 {
 132         unsigned *mirror = opt->value;
 133         if (not)
 134                 *mirror = MIRROR_NONE;
 135         else if (!arg) {
 136                 warning("%s", _(mirror_advice));
 137                 *mirror = MIRROR_BOTH;
 138         }
 139         else if (!strcmp(arg, "fetch"))
 140                 *mirror = MIRROR_FETCH;
 141         else if (!strcmp(arg, "push"))
 142                 *mirror = MIRROR_PUSH;
 143         else
 144                 return error(_("unknown mirror argument: %s"), arg);
 145         return 0;
 146 }
 147
 148 static int add(int argc, const char **argv)
 149 {
 150         int fetch = 0, fetch_tags = TAGS_DEFAULT;
 151         unsigned mirror = MIRROR_NONE;
 152         struct string_list track = STRING_LIST_INIT_NODUP;
 153         const char *master = NULL;
 154         struct remote *remote;
 155         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
 156         const char *name, *url;
 157         int i;
 158
 159         struct option options[] = {
 160                 OPT_BOOL('f', "fetch", &fetch, N_("fetch the remote branches")),
 161                 OPT_SET_INT(0, "tags", &fetch_tags,
 162                             N_("import all tags and associated objects when fetching"),
 163                             TAGS_SET),
 164                 OPT_SET_INT(0, NULL, &fetch_tags,
 165                             N_("or do not fetch any tag at all (--no-tags)"), TAGS_UNSET),
 166                 OPT_STRING_LIST('t', "track", &track, N_("branch"),
 167                                 N_("branch(es) to track")),
 168                 OPT_STRING('m', "master", &master, N_("branch"), N_("master branch")),
 169                 { OPTION_CALLBACK, 0, "mirror", &mirror, N_("push|fetch"),
 170                         N_("set up remote as a mirror to push to or fetch from"),
 171                         PARSE_OPT_OPTARG | PARSE_OPT_COMP_ARG, parse_mirror_opt },
 172                 OPT_END()
 173         };
 174
 175         argc = parse_options(argc, argv, NULL, options, builtin_remote_add_usage,
 176                              0);
 177
 178         if (argc != 2)
 179                 usage_with_options(builtin_remote_add_usage, options);
 180
 181         if (mirror && master)
 182                 die(_("specifying a master branch makes no sense with --mirror"));
 183         if (mirror && !(mirror & MIRROR_FETCH) && track.nr)
 184                 die(_("specifying branches to track makes sense only with fetch mirrors"));
 185
 186         name = argv[0];
 187         url = argv[1];
 188
 189         remote = remote_get(name);
 190         if (remote_is_configured(remote, 1))
 191                 die(_("remote %s already exists."), name);
 192
 193         strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
 194         if (!valid_fetch_refspec(buf2.buf))
 195                 die(_("'%s' is not a valid remote name"), name);
 196
 197         strbuf_addf(&buf, "remote.%s.url", name);
 198         git_config_set(buf.buf, url);
 199
 200         if (!mirror || mirror & MIRROR_FETCH) {
 201                 strbuf_reset(&buf);
 202                 strbuf_addf(&buf, "remote.%s.fetch", name);
 203                 if (track.nr == 0)
 204                         string_list_append(&track, "*");
 205                 for (i = 0; i < track.nr; i++) {
 206                         add_branch(buf.buf, track.items[i].string,
 207                                    name, mirror, &buf2);
 208                 }
 209         }
 210
 211         if (mirror & MIRROR_PUSH) {
 212                 strbuf_reset(&buf);
 213                 strbuf_addf(&buf, "remote.%s.mirror", name);
 214                 git_config_set(buf.buf, "true");
 215         }
 216
 217         if (fetch_tags != TAGS_DEFAULT) {
 218                 strbuf_reset(&buf);
 219                 strbuf_addf(&buf, "remote.%s.tagopt", name);
 220                 git_config_set(buf.buf,
 221                                fetch_tags == TAGS_SET ? "--tags" : "--no-tags");
 222         }
 223
 224         if (fetch && fetch_remote(name))
 225                 return 1;
 226
 227         if (master) {
 228                 strbuf_reset(&buf);
 229                 strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
 230
 231                 strbuf_reset(&buf2);
 232                 strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
 233
 234                 if (create_symref(buf.buf, buf2.buf, "remote add"))
 235                         return error(_("Could not setup master '%s'"), master);
 236         }
 237
 238         strbuf_release(&buf);
 239         strbuf_release(&buf2);
 240         string_list_clear(&track, 0);
 241
 242         return 0;
 243 }
 244
 245 struct branch_info {
 246         char *remote_name;
 247         struct string_list merge;
 248         enum { NO_REBASE, NORMAL_REBASE, INTERACTIVE_REBASE } rebase;
 249 };
 250
 251 static struct string_list branch_list = STRING_LIST_INIT_NODUP;
 252
 253 static const char *abbrev_ref(const char *name, const char *prefix)
 254 {
 255         skip_prefix(name, prefix, &name);
 256         return name;
 257 }
 258 #define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 259
 260 static int config_read_branches(const char *key, const char *value, void *cb)
 261 {
 262         if (starts_with(key, "branch.")) {
 263                 const char *orig_key = key;
 264                 char *name;
 265                 struct string_list_item *item;
 266                 struct branch_info *info;
 267                 enum { REMOTE, MERGE, REBASE } type;
 268                 size_t key_len;
 269
 270                 key += 7;
 271                 if (strip_suffix(key, ".remote", &key_len)) {
 272                         name = xmemdupz(key, key_len);
 273                         type = REMOTE;
 274                 } else if (strip_suffix(key, ".merge", &key_len)) {
 275                         name = xmemdupz(key, key_len);
 276                         type = MERGE;
 277                 } else if (strip_suffix(key, ".rebase", &key_len)) {
 278                         name = xmemdupz(key, key_len);
 279                         type = REBASE;
 280                 } else
 281                         return 0;
 282
 283                 item = string_list_insert(&branch_list, name);
 284
 285                 if (!item->util)
 286                         item->util = xcalloc(1, sizeof(struct branch_info));
 287                 info = item->util;
 288                 if (type == REMOTE) {
 289                         if (info->remote_name)
 290                                 warning(_("more than one %s"), orig_key);
 291                         info->remote_name = xstrdup(value);
 292                 } else if (type == MERGE) {
 293                         char *space = strchr(value, ' ');
 294                         value = abbrev_branch(value);
 295                         while (space) {
 296                                 char *merge;
 297                                 merge = xstrndup(value, space - value);
 298                                 string_list_append(&info->merge, merge);
 299                                 value = abbrev_branch(space + 1);
 300                                 space = strchr(value, ' ');
 301                         }
 302                         string_list_append(&info->merge, xstrdup(value));
 303                 } else {
 304                         int v = git_parse_maybe_bool(value);
 305                         if (v >= 0)
 306                                 info->rebase = v;
 307                         else if (!strcmp(value, "preserve"))
 308                                 info->rebase = NORMAL_REBASE;
 309                         else if (!strcmp(value, "recreate"))
 310                                 info->rebase = NORMAL_REBASE;
 311                         else if (!strcmp(value, "interactive"))
 312                                 info->rebase = INTERACTIVE_REBASE;
 313                 }
 314         }
 315         return 0;
 316 }
 317
 318 static void read_branches(void)
 319 {
 320         if (branch_list.nr)
 321                 return;
 322         git_config(config_read_branches, NULL);
 323 }
 324
 325 struct ref_states {
 326         struct remote *remote;
 327         struct string_list new_refs, stale, tracked, heads, push;
 328         int queried;
 329 };
 330
 331 static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 332 {
 333         struct ref *fetch_map = NULL, **tail = &fetch_map;
 334         struct ref *ref, *stale_refs;
 335         int i;
 336
 337         for (i = 0; i < states->remote->fetch_refspec_nr; i++)
 338                 if (get_fetch_map(remote_refs, states->remote->fetch + i, &tail, 1))
 339                         die(_("Could not get fetch map for refspec %s"),
 340                                 states->remote->fetch_refspec[i]);
 341
 342         states->new_refs.strdup_strings = 1;
 343         states->tracked.strdup_strings = 1;
 344         states->stale.strdup_strings = 1;
 345         for (ref = fetch_map; ref; ref = ref->next) {
 346                 if (!ref->peer_ref || !ref_exists(ref->peer_ref->name))
 347                         string_list_append(&states->new_refs, abbrev_branch(ref->name));
 348                 else
 349                         string_list_append(&states->tracked, abbrev_branch(ref->name));
 350         }
 351         stale_refs = get_stale_heads(states->remote->fetch,
 352                                      states->remote->fetch_refspec_nr, fetch_map);
 353         for (ref = stale_refs; ref; ref = ref->next) {
 354                 struct string_list_item *item =
 355                         string_list_append(&states->stale, abbrev_branch(ref->name));
 356                 item->util = xstrdup(ref->name);
 357         }
 358         free_refs(stale_refs);
 359         free_refs(fetch_map);
 360
 361         string_list_sort(&states->new_refs);
 362         string_list_sort(&states->tracked);
 363         string_list_sort(&states->stale);
 364
 365         return 0;
 366 }
 367
 368 struct push_info {
 369         char *dest;
 370         int forced;
 371         enum {
 372                 PUSH_STATUS_CREATE = 0,
 373                 PUSH_STATUS_DELETE,
 374                 PUSH_STATUS_UPTODATE,
 375                 PUSH_STATUS_FASTFORWARD,
 376                 PUSH_STATUS_OUTOFDATE,
 377                 PUSH_STATUS_NOTQUERIED
 378         } status;
 379 };
 380
 381 static int get_push_ref_states(const struct ref *remote_refs,
 382         struct ref_states *states)
 383 {
 384         struct remote *remote = states->remote;
 385         struct ref *ref, *local_refs, *push_map;
 386         if (remote->mirror)
 387                 return 0;
 388
 389         local_refs = get_local_heads();
 390         push_map = copy_ref_list(remote_refs);
 391
 392         match_push_refs(local_refs, &push_map, remote->push_refspec_nr,
 393                         remote->push_refspec, MATCH_REFS_NONE);
 394
 395         states->push.strdup_strings = 1;
 396         for (ref = push_map; ref; ref = ref->next) {
 397                 struct string_list_item *item;
 398                 struct push_info *info;
 399
 400                 if (!ref->peer_ref)
 401                         continue;
 402                 oidcpy(&ref->new_oid, &ref->peer_ref->new_oid);
 403
 404                 item = string_list_append(&states->push,
 405                                           abbrev_branch(ref->peer_ref->name));
 406                 item->util = xcalloc(1, sizeof(struct push_info));
 407                 info = item->util;
 408                 info->forced = ref->force;
 409                 info->dest = xstrdup(abbrev_branch(ref->name));
 410
 411                 if (is_null_oid(&ref->new_oid)) {
 412                         info->status = PUSH_STATUS_DELETE;
 413                 } else if (!oidcmp(&ref->old_oid, &ref->new_oid))
 414                         info->status = PUSH_STATUS_UPTODATE;
 415                 else if (is_null_oid(&ref->old_oid))
 416                         info->status = PUSH_STATUS_CREATE;
 417                 else if (has_object_file(&ref->old_oid) &&
 418                          ref_newer(&ref->new_oid, &ref->old_oid))
 419                         info->status = PUSH_STATUS_FASTFORWARD;
 420                 else
 421                         info->status = PUSH_STATUS_OUTOFDATE;
 422         }
 423         free_refs(local_refs);
 424         free_refs(push_map);
 425         return 0;
 426 }
 427
 428 static int get_push_ref_states_noquery(struct ref_states *states)
 429 {
 430         int i;
 431         struct remote *remote = states->remote;
 432         struct string_list_item *item;
 433         struct push_info *info;
 434
 435         if (remote->mirror)
 436                 return 0;
 437
 438         states->push.strdup_strings = 1;
 439         if (!remote->push_refspec_nr) {
 440                 item = string_list_append(&states->push, _("(matching)"));
 441                 info = item->util = xcalloc(1, sizeof(struct push_info));
 442                 info->status = PUSH_STATUS_NOTQUERIED;
 443                 info->dest = xstrdup(item->string);
 444         }
 445         for (i = 0; i < remote->push_refspec_nr; i++) {
 446                 struct refspec *spec = remote->push + i;
 447                 if (spec->matching)
 448                         item = string_list_append(&states->push, _("(matching)"));
 449                 else if (strlen(spec->src))
 450                         item = string_list_append(&states->push, spec->src);
 451                 else
 452                         item = string_list_append(&states->push, _("(delete)"));
 453
 454                 info = item->util = xcalloc(1, sizeof(struct push_info));
 455                 info->forced = spec->force;
 456                 info->status = PUSH_STATUS_NOTQUERIED;
 457                 info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 458         }
 459         return 0;
 460 }
 461
 462 static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 463 {
 464         struct ref *ref, *matches;
 465         struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 466         struct refspec refspec;
 467
 468         refspec.force = 0;
 469         refspec.pattern = 1;
 470         refspec.src = refspec.dst = "refs/heads/*";
 471         states->heads.strdup_strings = 1;
 472         get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 473         matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 474                                     fetch_map, 1);
 475         for (ref = matches; ref; ref = ref->next)
 476                 string_list_append(&states->heads, abbrev_branch(ref->name));
 477
 478         free_refs(fetch_map);
 479         free_refs(matches);
 480
 481         return 0;
 482 }
 483
 484 struct known_remote {
 485         struct known_remote *next;
 486         struct remote *remote;
 487 };
 488
 489 struct known_remotes {
 490         struct remote *to_delete;
 491         struct known_remote *list;
 492 };
 493
 494 static int add_known_remote(struct remote *remote, void *cb_data)
 495 {
 496         struct known_remotes *all = cb_data;
 497         struct known_remote *r;
 498
 499         if (!strcmp(all->to_delete->name, remote->name))
 500                 return 0;
 501
 502         r = xmalloc(sizeof(*r));
 503         r->remote = remote;
 504         r->next = all->list;
 505         all->list = r;
 506         return 0;
 507 }
 508
 509 struct branches_for_remote {
 510         struct remote *remote;
 511         struct string_list *branches, *skipped;
 512         struct known_remotes *keep;
 513 };
 514
 515 static int add_branch_for_removal(const char *refname,
 516         const struct object_id *oid, int flags, void *cb_data)
 517 {
 518         struct branches_for_remote *branches = cb_data;
 519         struct refspec refspec;
 520         struct known_remote *kr;
 521
 522         memset(&refspec, 0, sizeof(refspec));
 523         refspec.dst = (char *)refname;
 524         if (remote_find_tracking(branches->remote, &refspec))
 525                 return 0;
 526
 527         /* don't delete a branch if another remote also uses it */
 528         for (kr = branches->keep->list; kr; kr = kr->next) {
 529                 memset(&refspec, 0, sizeof(refspec));
 530                 refspec.dst = (char *)refname;
 531                 if (!remote_find_tracking(kr->remote, &refspec))
 532                         return 0;
 533         }
 534
 535         /* don't delete non-remote-tracking refs */
 536         if (!starts_with(refname, "refs/remotes/")) {
 537                 /* advise user how to delete local branches */
 538                 if (starts_with(refname, "refs/heads/"))
 539                         string_list_append(branches->skipped,
 540                                            abbrev_branch(refname));
 541                 /* silently skip over other non-remote refs */
 542                 return 0;
 543         }
 544
 545         string_list_append(branches->branches, refname);
 546
 547         return 0;
 548 }
 549
 550 struct rename_info {
 551         const char *old_name;
 552         const char *new_name;
 553         struct string_list *remote_branches;
 554 };
 555
 556 static int read_remote_branches(const char *refname,
 557         const struct object_id *oid, int flags, void *cb_data)
 558 {
 559         struct rename_info *rename = cb_data;
 560         struct strbuf buf = STRBUF_INIT;
 561         struct string_list_item *item;
 562         int flag;
 563         const char *symref;
 564
 565         strbuf_addf(&buf, "refs/remotes/%s/", rename->old_name);
 566         if (starts_with(refname, buf.buf)) {
 567                 item = string_list_append(rename->remote_branches, xstrdup(refname));
 568                 symref = resolve_ref_unsafe(refname, RESOLVE_REF_READING,
 569                                             NULL, &flag);
 570                 if (symref && (flag & REF_ISSYMREF))
 571                         item->util = xstrdup(symref);
 572                 else
 573                         item->util = NULL;
 574         }
 575         strbuf_release(&buf);
 576
 577         return 0;
 578 }
 579
 580 static int migrate_file(struct remote *remote)
 581 {
 582         struct strbuf buf = STRBUF_INIT;
 583         int i;
 584
 585         strbuf_addf(&buf, "remote.%s.url", remote->name);
 586         for (i = 0; i < remote->url_nr; i++)
 587                 git_config_set_multivar(buf.buf, remote->url[i], "^$", 0);
 588         strbuf_reset(&buf);
 589         strbuf_addf(&buf, "remote.%s.push", remote->name);
 590         for (i = 0; i < remote->push_refspec_nr; i++)
 591                 git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0);
 592         strbuf_reset(&buf);
 593         strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 594         for (i = 0; i < remote->fetch_refspec_nr; i++)
 595                 git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0);
 596         if (remote->origin == REMOTE_REMOTES)
 597                 unlink_or_warn(git_path("remotes/%s", remote->name));
 598         else if (remote->origin == REMOTE_BRANCHES)
 599                 unlink_or_warn(git_path("branches/%s", remote->name));
 600         strbuf_release(&buf);
 601
 602         return 0;
 603 }
 604
 605 static int mv(int argc, const char **argv)
 606 {
 607         struct option options[] = {
 608                 OPT_END()
 609         };
 610         struct remote *oldremote, *newremote;
 611         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT,
 612                 old_remote_context = STRBUF_INIT;
 613         struct string_list remote_branches = STRING_LIST_INIT_NODUP;
 614         struct rename_info rename;
 615         int i, refspec_updated = 0;
 616
 617         if (argc != 3)
 618                 usage_with_options(builtin_remote_rename_usage, options);
 619
 620         rename.old_name = argv[1];
 621         rename.new_name = argv[2];
 622         rename.remote_branches = &remote_branches;
 623
 624         oldremote = remote_get(rename.old_name);
 625         if (!remote_is_configured(oldremote, 1))
 626                 die(_("No such remote: %s"), rename.old_name);
 627
 628         if (!strcmp(rename.old_name, rename.new_name) && oldremote->origin != REMOTE_CONFIG)
 629                 return migrate_file(oldremote);
 630
 631         newremote = remote_get(rename.new_name);
 632         if (remote_is_configured(newremote, 1))
 633                 die(_("remote %s already exists."), rename.new_name);
 634
 635         strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new_name);
 636         if (!valid_fetch_refspec(buf.buf))
 637                 die(_("'%s' is not a valid remote name"), rename.new_name);
 638
 639         strbuf_reset(&buf);
 640         strbuf_addf(&buf, "remote.%s", rename.old_name);
 641         strbuf_addf(&buf2, "remote.%s", rename.new_name);
 642         if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 643                 return error(_("Could not rename config section '%s' to '%s'"),
 644                                 buf.buf, buf2.buf);
 645
 646         strbuf_reset(&buf);
 647         strbuf_addf(&buf, "remote.%s.fetch", rename.new_name);
 648         git_config_set_multivar(buf.buf, NULL, NULL, 1);
 649         strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old_name);
 650         for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 651                 char *ptr;
 652
 653                 strbuf_reset(&buf2);
 654                 strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 655                 ptr = strstr(buf2.buf, old_remote_context.buf);
 656                 if (ptr) {
 657                         refspec_updated = 1;
 658                         strbuf_splice(&buf2,
 659                                       ptr-buf2.buf + strlen(":refs/remotes/"),
 660                                       strlen(rename.old_name), rename.new_name,
 661                                       strlen(rename.new_name));
 662                 } else
 663                         warning(_("Not updating non-default fetch refspec\n"
 664                                   "\t%s\n"
 665                                   "\tPlease update the configuration manually if necessary."),
 666                                 buf2.buf);
 667
 668                 git_config_set_multivar(buf.buf, buf2.buf, "^$", 0);
 669         }
 670
 671         read_branches();
 672         for (i = 0; i < branch_list.nr; i++) {
 673                 struct string_list_item *item = branch_list.items + i;
 674                 struct branch_info *info = item->util;
 675                 if (info->remote_name && !strcmp(info->remote_name, rename.old_name)) {
 676                         strbuf_reset(&buf);
 677                         strbuf_addf(&buf, "branch.%s.remote", item->string);
 678                         git_config_set(buf.buf, rename.new_name);
 679                 }
 680         }
 681
 682         if (!refspec_updated)
 683                 return 0;
 684
 685         /*
 686          * First remove symrefs, then rename the rest, finally create
 687          * the new symrefs.
 688          */
 689         for_each_ref(read_remote_branches, &rename);
 690         for (i = 0; i < remote_branches.nr; i++) {
 691                 struct string_list_item *item = remote_branches.items + i;
 692                 int flag = 0;
 693                 struct object_id oid;
 694
 695                 read_ref_full(item->string, RESOLVE_REF_READING, &oid, &flag);
 696                 if (!(flag & REF_ISSYMREF))
 697                         continue;
 698                 if (delete_ref(NULL, item->string, NULL, REF_NO_DEREF))
 699                         die(_("deleting '%s' failed"), item->string);
 700         }
 701         for (i = 0; i < remote_branches.nr; i++) {
 702                 struct string_list_item *item = remote_branches.items + i;
 703
 704                 if (item->util)
 705                         continue;
 706                 strbuf_reset(&buf);
 707                 strbuf_addstr(&buf, item->string);
 708                 strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old_name),
 709                                 rename.new_name, strlen(rename.new_name));
 710                 strbuf_reset(&buf2);
 711                 strbuf_addf(&buf2, "remote: renamed %s to %s",
 712                                 item->string, buf.buf);
 713                 if (rename_ref(item->string, buf.buf, buf2.buf))
 714                         die(_("renaming '%s' failed"), item->string);
 715         }
 716         for (i = 0; i < remote_branches.nr; i++) {
 717                 struct string_list_item *item = remote_branches.items + i;
 718
 719                 if (!item->util)
 720                         continue;
 721                 strbuf_reset(&buf);
 722                 strbuf_addstr(&buf, item->string);
 723                 strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old_name),
 724                                 rename.new_name, strlen(rename.new_name));
 725                 strbuf_reset(&buf2);
 726                 strbuf_addstr(&buf2, item->util);
 727                 strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old_name),
 728                                 rename.new_name, strlen(rename.new_name));
 729                 strbuf_reset(&buf3);
 730                 strbuf_addf(&buf3, "remote: renamed %s to %s",
 731                                 item->string, buf.buf);
 732                 if (create_symref(buf.buf, buf2.buf, buf3.buf))
 733                         die(_("creating '%s' failed"), buf.buf);
 734         }
 735         return 0;
 736 }
 737
 738 static int rm(int argc, const char **argv)
 739 {
 740         struct option options[] = {
 741                 OPT_END()
 742         };
 743         struct remote *remote;
 744         struct strbuf buf = STRBUF_INIT;
 745         struct known_remotes known_remotes = { NULL, NULL };
 746         struct string_list branches = STRING_LIST_INIT_DUP;
 747         struct string_list skipped = STRING_LIST_INIT_DUP;
 748         struct branches_for_remote cb_data;
 749         int i, result;
 750
 751         memset(&cb_data, 0, sizeof(cb_data));
 752         cb_data.branches = &branches;
 753         cb_data.skipped = &skipped;
 754         cb_data.keep = &known_remotes;
 755
 756         if (argc != 2)
 757                 usage_with_options(builtin_remote_rm_usage, options);
 758
 759         remote = remote_get(argv[1]);
 760         if (!remote_is_configured(remote, 1))
 761                 die(_("No such remote: %s"), argv[1]);
 762
 763         known_remotes.to_delete = remote;
 764         for_each_remote(add_known_remote, &known_remotes);
 765
 766         read_branches();
 767         for (i = 0; i < branch_list.nr; i++) {
 768                 struct string_list_item *item = branch_list.items + i;
 769                 struct branch_info *info = item->util;
 770                 if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 771                         const char *keys[] = { "remote", "merge", NULL }, **k;
 772                         for (k = keys; *k; k++) {
 773                                 strbuf_reset(&buf);
 774                                 strbuf_addf(&buf, "branch.%s.%s",
 775                                                 item->string, *k);
 776                                 result = git_config_set_gently(buf.buf, NULL);
 777                                 if (result && result != CONFIG_NOTHING_SET)
 778                                         die(_("could not unset '%s'"), buf.buf);
 779                         }
 780                 }
 781         }
 782
 783         /*
 784          * We cannot just pass a function to for_each_ref() which deletes
 785          * the branches one by one, since for_each_ref() relies on cached
 786          * refs, which are invalidated when deleting a branch.
 787          */
 788         cb_data.remote = remote;
 789         result = for_each_ref(add_branch_for_removal, &cb_data);
 790         strbuf_release(&buf);
 791
 792         if (!result)
 793                 result = delete_refs("remote: remove", &branches, REF_NO_DEREF);
 794         string_list_clear(&branches, 0);
 795
 796         if (skipped.nr) {
 797                 fprintf_ln(stderr,
 798                            Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 799                               "to delete it, use:",
 800                               "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 801                               "to delete them, use:",
 802                               skipped.nr));
 803                 for (i = 0; i < skipped.nr; i++)
 804                         fprintf(stderr, "  git branch -d %s\n",
 805                                 skipped.items[i].string);
 806         }
 807         string_list_clear(&skipped, 0);
 808
 809         if (!result) {
 810                 strbuf_addf(&buf, "remote.%s", remote->name);
 811                 if (git_config_rename_section(buf.buf, NULL) < 1)
 812                         return error(_("Could not remove config section '%s'"), buf.buf);
 813         }
 814
 815         return result;
 816 }
 817
 818 static void clear_push_info(void *util, const char *string)
 819 {
 820         struct push_info *info = util;
 821         free(info->dest);
 822         free(info);
 823 }
 824
 825 static void free_remote_ref_states(struct ref_states *states)
 826 {
 827         string_list_clear(&states->new_refs, 0);
 828         string_list_clear(&states->stale, 1);
 829         string_list_clear(&states->tracked, 0);
 830         string_list_clear(&states->heads, 0);
 831         string_list_clear_func(&states->push, clear_push_info);
 832 }
 833
 834 static int append_ref_to_tracked_list(const char *refname,
 835         const struct object_id *oid, int flags, void *cb_data)
 836 {
 837         struct ref_states *states = cb_data;
 838         struct refspec refspec;
 839
 840         if (flags & REF_ISSYMREF)
 841                 return 0;
 842
 843         memset(&refspec, 0, sizeof(refspec));
 844         refspec.dst = (char *)refname;
 845         if (!remote_find_tracking(states->remote, &refspec))
 846                 string_list_append(&states->tracked, abbrev_branch(refspec.src));
 847
 848         return 0;
 849 }
 850
 851 static int get_remote_ref_states(const char *name,
 852                                  struct ref_states *states,
 853                                  int query)
 854 {
 855         struct transport *transport;
 856         const struct ref *remote_refs;
 857
 858         states->remote = remote_get(name);
 859         if (!states->remote)
 860                 return error(_("No such remote: %s"), name);
 861
 862         read_branches();
 863
 864         if (query) {
 865                 transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 866                         states->remote->url[0] : NULL);
 867                 remote_refs = transport_get_remote_refs(transport, NULL);
 868                 transport_disconnect(transport);
 869
 870                 states->queried = 1;
 871                 if (query & GET_REF_STATES)
 872                         get_ref_states(remote_refs, states);
 873                 if (query & GET_HEAD_NAMES)
 874                         get_head_names(remote_refs, states);
 875                 if (query & GET_PUSH_REF_STATES)
 876                         get_push_ref_states(remote_refs, states);
 877         } else {
 878                 for_each_ref(append_ref_to_tracked_list, states);
 879                 string_list_sort(&states->tracked);
 880                 get_push_ref_states_noquery(states);
 881         }
 882
 883         return 0;
 884 }
 885
 886 struct show_info {
 887         struct string_list *list;
 888         struct ref_states *states;
 889         int width, width2;
 890         int any_rebase;
 891 };
 892
 893 static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 894 {
 895         struct show_info *info = cb_data;
 896         int n = strlen(item->string);
 897         if (n > info->width)
 898                 info->width = n;
 899         string_list_insert(info->list, item->string);
 900         return 0;
 901 }
 902
 903 static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 904 {
 905         struct show_info *info = cb_data;
 906         struct ref_states *states = info->states;
 907         const char *name = item->string;
 908
 909         if (states->queried) {
 910                 const char *fmt = "%s";
 911                 const char *arg = "";
 912                 if (string_list_has_string(&states->new_refs, name)) {
 913                         fmt = _(" new (next fetch will store in remotes/%s)");
 914                         arg = states->remote->name;
 915                 } else if (string_list_has_string(&states->tracked, name))
 916                         arg = _(" tracked");
 917                 else if (string_list_has_string(&states->stale, name))
 918                         arg = _(" stale (use 'git remote prune' to remove)");
 919                 else
 920                         arg = _(" ???");
 921                 printf("    %-*s", info->width, name);
 922                 printf(fmt, arg);
 923                 printf("\n");
 924         } else
 925                 printf("    %s\n", name);
 926
 927         return 0;
 928 }
 929
 930 static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 931 {
 932         struct show_info *show_info = cb_data;
 933         struct ref_states *states = show_info->states;
 934         struct branch_info *branch_info = branch_item->util;
 935         struct string_list_item *item;
 936         int n;
 937
 938         if (!branch_info->merge.nr || !branch_info->remote_name ||
 939             strcmp(states->remote->name, branch_info->remote_name))
 940                 return 0;
 941         if ((n = strlen(branch_item->string)) > show_info->width)
 942                 show_info->width = n;
 943         if (branch_info->rebase)
 944                 show_info->any_rebase = 1;
 945
 946         item = string_list_insert(show_info->list, branch_item->string);
 947         item->util = branch_info;
 948
 949         return 0;
 950 }
 951
 952 static int show_local_info_item(struct string_list_item *item, void *cb_data)
 953 {
 954         struct show_info *show_info = cb_data;
 955         struct branch_info *branch_info = item->util;
 956         struct string_list *merge = &branch_info->merge;
 957         int width = show_info->width + 4;
 958         int i;
 959
 960         if (branch_info->rebase && branch_info->merge.nr > 1) {
 961                 error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"),
 962                         item->string);
 963                 return 0;
 964         }
 965
 966         printf("    %-*s ", show_info->width, item->string);
 967         if (branch_info->rebase) {
 968                 printf_ln(branch_info->rebase == INTERACTIVE_REBASE
 969                           ? _("rebases interactively onto remote %s")
 970                           : _("rebases onto remote %s"), merge->items[0].string);
 971                 return 0;
 972         } else if (show_info->any_rebase) {
 973                 printf_ln(_(" merges with remote %s"), merge->items[0].string);
 974                 width++;
 975         } else {
 976                 printf_ln(_("merges with remote %s"), merge->items[0].string);
 977         }
 978         for (i = 1; i < merge->nr; i++)
 979                 printf(_("%-*s    and with remote %s\n"), width, "",
 980                        merge->items[i].string);
 981
 982         return 0;
 983 }
 984
 985 static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
 986 {
 987         struct show_info *show_info = cb_data;
 988         struct push_info *push_info = push_item->util;
 989         struct string_list_item *item;
 990         int n;
 991         if ((n = strlen(push_item->string)) > show_info->width)
 992                 show_info->width = n;
 993         if ((n = strlen(push_info->dest)) > show_info->width2)
 994                 show_info->width2 = n;
 995         item = string_list_append(show_info->list, push_item->string);
 996         item->util = push_item->util;
 997         return 0;
 998 }
 999
1000 /*
1001  * Sorting comparison for a string list that has push_info
1002  * structs in its util field
1003  */
1004 static int cmp_string_with_push(const void *va, const void *vb)
1005 {
1006         const struct string_list_item *a = va;
1007         const struct string_list_item *b = vb;
1008         const struct push_info *a_push = a->util;
1009         const struct push_info *b_push = b->util;
1010         int cmp = strcmp(a->string, b->string);
1011         return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1012 }
1013
1014 static int show_push_info_item(struct string_list_item *item, void *cb_data)
1015 {
1016         struct show_info *show_info = cb_data;
1017         struct push_info *push_info = item->util;
1018         const char *src = item->string, *status = NULL;
1019
1020         switch (push_info->status) {
1021         case PUSH_STATUS_CREATE:
1022                 status = _("create");
1023                 break;
1024         case PUSH_STATUS_DELETE:
1025                 status = _("delete");
1026                 src = _("(none)");
1027                 break;
1028         case PUSH_STATUS_UPTODATE:
1029                 status = _("up to date");
1030                 break;
1031         case PUSH_STATUS_FASTFORWARD:
1032                 status = _("fast-forwardable");
1033                 break;
1034         case PUSH_STATUS_OUTOFDATE:
1035                 status = _("local out of date");
1036                 break;
1037         case PUSH_STATUS_NOTQUERIED:
1038                 break;
1039         }
1040         if (status) {
1041                 if (push_info->forced)
1042                         printf_ln(_("    %-*s forces to %-*s (%s)"), show_info->width, src,
1043                                show_info->width2, push_info->dest, status);
1044                 else
1045                         printf_ln(_("    %-*s pushes to %-*s (%s)"), show_info->width, src,
1046                                show_info->width2, push_info->dest, status);
1047         } else {
1048                 if (push_info->forced)
1049                         printf_ln(_("    %-*s forces to %s"), show_info->width, src,
1050                                push_info->dest);
1051                 else
1052                         printf_ln(_("    %-*s pushes to %s"), show_info->width, src,
1053                                push_info->dest);
1054         }
1055         return 0;
1056 }
1057
1058 static int get_one_entry(struct remote *remote, void *priv)
1059 {
1060         struct string_list *list = priv;
1061         struct strbuf url_buf = STRBUF_INIT;
1062         const char **url;
1063         int i, url_nr;
1064
1065         if (remote->url_nr > 0) {
1066                 strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1067                 string_list_append(list, remote->name)->util =
1068                                 strbuf_detach(&url_buf, NULL);
1069         } else
1070                 string_list_append(list, remote->name)->util = NULL;
1071         if (remote->pushurl_nr) {
1072                 url = remote->pushurl;
1073                 url_nr = remote->pushurl_nr;
1074         } else {
1075                 url = remote->url;
1076                 url_nr = remote->url_nr;
1077         }
1078         for (i = 0; i < url_nr; i++)
1079         {
1080                 strbuf_addf(&url_buf, "%s (push)", url[i]);
1081                 string_list_append(list, remote->name)->util =
1082                                 strbuf_detach(&url_buf, NULL);
1083         }
1084
1085         return 0;
1086 }
1087
1088 static int show_all(void)
1089 {
1090         struct string_list list = STRING_LIST_INIT_NODUP;
1091         int result;
1092
1093         list.strdup_strings = 1;
1094         result = for_each_remote(get_one_entry, &list);
1095
1096         if (!result) {
1097                 int i;
1098
1099                 string_list_sort(&list);
1100                 for (i = 0; i < list.nr; i++) {
1101                         struct string_list_item *item = list.items + i;
1102                         if (verbose)
1103                                 printf("%s\t%s\n", item->string,
1104                                         item->util ? (const char *)item->util : "");
1105                         else {
1106                                 if (i && !strcmp((item - 1)->string, item->string))
1107                                         continue;
1108                                 printf("%s\n", item->string);
1109                         }
1110                 }
1111         }
1112         string_list_clear(&list, 1);
1113         return result;
1114 }
1115
1116 static int show(int argc, const char **argv)
1117 {
1118         int no_query = 0, result = 0, query_flag = 0;
1119         struct option options[] = {
1120                 OPT_BOOL('n', NULL, &no_query, N_("do not query remotes")),
1121                 OPT_END()
1122         };
1123         struct ref_states states;
1124         struct string_list info_list = STRING_LIST_INIT_NODUP;
1125         struct show_info info;
1126
1127         argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1128                              0);
1129
1130         if (argc < 1)
1131                 return show_all();
1132
1133         if (!no_query)
1134                 query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1135
1136         memset(&states, 0, sizeof(states));
1137         memset(&info, 0, sizeof(info));
1138         info.states = &states;
1139         info.list = &info_list;
1140         for (; argc; argc--, argv++) {
1141                 int i;
1142                 const char **url;
1143                 int url_nr;
1144
1145                 get_remote_ref_states(*argv, &states, query_flag);
1146
1147                 printf_ln(_("* remote %s"), *argv);
1148                 printf_ln(_("  Fetch URL: %s"), states.remote->url_nr > 0 ?
1149                        states.remote->url[0] : _("(no URL)"));
1150                 if (states.remote->pushurl_nr) {
1151                         url = states.remote->pushurl;
1152                         url_nr = states.remote->pushurl_nr;
1153                 } else {
1154                         url = states.remote->url;
1155                         url_nr = states.remote->url_nr;
1156                 }
1157                 for (i = 0; i < url_nr; i++)
1158                         /*
1159                          * TRANSLATORS: the colon ':' should align
1160                          * with the one in " Fetch URL: %s"
1161                          * translation.
1162                          */
1163                         printf_ln(_("  Push  URL: %s"), url[i]);
1164                 if (!i)
1165                         printf_ln(_("  Push  URL: %s"), _("(no URL)"));
1166                 if (no_query)
1167                         printf_ln(_("  HEAD branch: %s"), _("(not queried)"));
1168                 else if (!states.heads.nr)
1169                         printf_ln(_("  HEAD branch: %s"), _("(unknown)"));
1170                 else if (states.heads.nr == 1)
1171                         printf_ln(_("  HEAD branch: %s"), states.heads.items[0].string);
1172                 else {
1173                         printf(_("  HEAD branch (remote HEAD is ambiguous,"
1174                                  " may be one of the following):\n"));
1175                         for (i = 0; i < states.heads.nr; i++)
1176                                 printf("    %s\n", states.heads.items[i].string);
1177                 }
1178
1179                 /* remote branch info */
1180                 info.width = 0;
1181                 for_each_string_list(&states.new_refs, add_remote_to_show_info, &info);
1182                 for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1183                 for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1184                 if (info.list->nr)
1185                         printf_ln(Q_("  Remote branch:%s",
1186                                      "  Remote branches:%s",
1187                                      info.list->nr),
1188                                   no_query ? _(" (status not queried)") : "");
1189                 for_each_string_list(info.list, show_remote_info_item, &info);
1190                 string_list_clear(info.list, 0);
1191
1192                 /* git pull info */
1193                 info.width = 0;
1194                 info.any_rebase = 0;
1195                 for_each_string_list(&branch_list, add_local_to_show_info, &info);
1196                 if (info.list->nr)
1197                         printf_ln(Q_("  Local branch configured for 'git pull':",
1198                                      "  Local branches configured for 'git pull':",
1199                                      info.list->nr));
1200                 for_each_string_list(info.list, show_local_info_item, &info);
1201                 string_list_clear(info.list, 0);
1202
1203                 /* git push info */
1204                 if (states.remote->mirror)
1205                         printf_ln(_("  Local refs will be mirrored by 'git push'"));
1206
1207                 info.width = info.width2 = 0;
1208                 for_each_string_list(&states.push, add_push_to_show_info, &info);
1209                 QSORT(info.list->items, info.list->nr, cmp_string_with_push);
1210                 if (info.list->nr)
1211                         printf_ln(Q_("  Local ref configured for 'git push'%s:",
1212                                      "  Local refs configured for 'git push'%s:",
1213                                      info.list->nr),
1214                                   no_query ? _(" (status not queried)") : "");
1215                 for_each_string_list(info.list, show_push_info_item, &info);
1216                 string_list_clear(info.list, 0);
1217
1218                 free_remote_ref_states(&states);
1219         }
1220
1221         return result;
1222 }
1223
1224 static int set_head(int argc, const char **argv)
1225 {
1226         int i, opt_a = 0, opt_d = 0, result = 0;
1227         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1228         char *head_name = NULL;
1229
1230         struct option options[] = {
1231                 OPT_BOOL('a', "auto", &opt_a,
1232                          N_("set refs/remotes/<name>/HEAD according to remote")),
1233                 OPT_BOOL('d', "delete", &opt_d,
1234                          N_("delete refs/remotes/<name>/HEAD")),
1235                 OPT_END()
1236         };
1237         argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1238                              0);
1239         if (argc)
1240                 strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1241
1242         if (!opt_a && !opt_d && argc == 2) {
1243                 head_name = xstrdup(argv[1]);
1244         } else if (opt_a && !opt_d && argc == 1) {
1245                 struct ref_states states;
1246                 memset(&states, 0, sizeof(states));
1247                 get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1248                 if (!states.heads.nr)
1249                         result |= error(_("Cannot determine remote HEAD"));
1250                 else if (states.heads.nr > 1) {
1251                         result |= error(_("Multiple remote HEAD branches. "
1252                                           "Please choose one explicitly with:"));
1253                         for (i = 0; i < states.heads.nr; i++)
1254                                 fprintf(stderr, "  git remote set-head %s %s\n",
1255                                         argv[0], states.heads.items[i].string);
1256                 } else
1257                         head_name = xstrdup(states.heads.items[0].string);
1258                 free_remote_ref_states(&states);
1259         } else if (opt_d && !opt_a && argc == 1) {
1260                 if (delete_ref(NULL, buf.buf, NULL, REF_NO_DEREF))
1261                         result |= error(_("Could not delete %s"), buf.buf);
1262         } else
1263                 usage_with_options(builtin_remote_sethead_usage, options);
1264
1265         if (head_name) {
1266                 strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1267                 /* make sure it's valid */
1268                 if (!ref_exists(buf2.buf))
1269                         result |= error(_("Not a valid ref: %s"), buf2.buf);
1270                 else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1271                         result |= error(_("Could not setup %s"), buf.buf);
1272                 if (opt_a)
1273                         printf("%s/HEAD set to %s\n", argv[0], head_name);
1274                 free(head_name);
1275         }
1276
1277         strbuf_release(&buf);
1278         strbuf_release(&buf2);
1279         return result;
1280 }
1281
1282 static int prune_remote(const char *remote, int dry_run)
1283 {
1284         int result = 0;
1285         struct ref_states states;
1286         struct string_list refs_to_prune = STRING_LIST_INIT_NODUP;
1287         struct string_list_item *item;
1288         const char *dangling_msg = dry_run
1289                 ? _(" %s will become dangling!")
1290                 : _(" %s has become dangling!");
1291
1292         memset(&states, 0, sizeof(states));
1293         get_remote_ref_states(remote, &states, GET_REF_STATES);
1294
1295         if (!states.stale.nr) {
1296                 free_remote_ref_states(&states);
1297                 return 0;
1298         }
1299
1300         printf_ln(_("Pruning %s"), remote);
1301         printf_ln(_("URL: %s"),
1302                   states.remote->url_nr
1303                   ? states.remote->url[0]
1304                   : _("(no URL)"));
1305
1306         for_each_string_list_item(item, &states.stale)
1307                 string_list_append(&refs_to_prune, item->util);
1308         string_list_sort(&refs_to_prune);
1309
1310         if (!dry_run)
1311                 result |= delete_refs("remote: prune", &refs_to_prune, 0);
1312
1313         for_each_string_list_item(item, &states.stale) {
1314                 const char *refname = item->util;
1315
1316                 if (dry_run)
1317                         printf_ln(_(" * [would prune] %s"),
1318                                abbrev_ref(refname, "refs/remotes/"));
1319                 else
1320                         printf_ln(_(" * [pruned] %s"),
1321                                abbrev_ref(refname, "refs/remotes/"));
1322         }
1323
1324         warn_dangling_symrefs(stdout, dangling_msg, &refs_to_prune);
1325
1326         string_list_clear(&refs_to_prune, 0);
1327         free_remote_ref_states(&states);
1328         return result;
1329 }
1330
1331 static int prune(int argc, const char **argv)
1332 {
1333         int dry_run = 0, result = 0;
1334         struct option options[] = {
1335                 OPT__DRY_RUN(&dry_run, N_("dry run")),
1336                 OPT_END()
1337         };
1338
1339         argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1340                              0);
1341
1342         if (argc < 1)
1343                 usage_with_options(builtin_remote_prune_usage, options);
1344
1345         for (; argc; argc--, argv++)
1346                 result |= prune_remote(*argv, dry_run);
1347
1348         return result;
1349 }
1350
1351 static int get_remote_default(const char *key, const char *value, void *priv)
1352 {
1353         if (strcmp(key, "remotes.default") == 0) {
1354                 int *found = priv;
1355                 *found = 1;
1356         }
1357         return 0;
1358 }
1359
1360 static int update(int argc, const char **argv)
1361 {
1362         int i, prune = -1;
1363         struct option options[] = {
1364                 OPT_BOOL('p', "prune", &prune,
1365                          N_("prune remotes after fetching")),
1366                 OPT_END()
1367         };
1368         struct argv_array fetch_argv = ARGV_ARRAY_INIT;
1369         int default_defined = 0;
1370         int retval;
1371
1372         argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1373                              PARSE_OPT_KEEP_ARGV0);
1374
1375         argv_array_push(&fetch_argv, "fetch");
1376
1377         if (prune != -1)
1378                 argv_array_push(&fetch_argv, prune ? "--prune" : "--no-prune");
1379         if (verbose)
1380                 argv_array_push(&fetch_argv, "-v");
1381         argv_array_push(&fetch_argv, "--multiple");
1382         if (argc < 2)
1383                 argv_array_push(&fetch_argv, "default");
1384         for (i = 1; i < argc; i++)
1385                 argv_array_push(&fetch_argv, argv[i]);
1386
1387         if (strcmp(fetch_argv.argv[fetch_argv.argc-1], "default") == 0) {
1388                 git_config(get_remote_default, &default_defined);
1389                 if (!default_defined) {
1390                         argv_array_pop(&fetch_argv);
1391                         argv_array_push(&fetch_argv, "--all");
1392                 }
1393         }
1394
1395         retval = run_command_v_opt(fetch_argv.argv, RUN_GIT_CMD);
1396         argv_array_clear(&fetch_argv);
1397         return retval;
1398 }
1399
1400 static int remove_all_fetch_refspecs(const char *remote, const char *key)
1401 {
1402         return git_config_set_multivar_gently(key, NULL, NULL, 1);
1403 }
1404
1405 static void add_branches(struct remote *remote, const char **branches,
1406                          const char *key)
1407 {
1408         const char *remotename = remote->name;
1409         int mirror = remote->mirror;
1410         struct strbuf refspec = STRBUF_INIT;
1411
1412         for (; *branches; branches++)
1413                 add_branch(key, *branches, remotename, mirror, &refspec);
1414
1415         strbuf_release(&refspec);
1416 }
1417
1418 static int set_remote_branches(const char *remotename, const char **branches,
1419                                 int add_mode)
1420 {
1421         struct strbuf key = STRBUF_INIT;
1422         struct remote *remote;
1423
1424         strbuf_addf(&key, "remote.%s.fetch", remotename);
1425
1426         remote = remote_get(remotename);
1427         if (!remote_is_configured(remote, 1))
1428                 die(_("No such remote '%s'"), remotename);
1429
1430         if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
1431                 strbuf_release(&key);
1432                 return 1;
1433         }
1434         add_branches(remote, branches, key.buf);
1435
1436         strbuf_release(&key);
1437         return 0;
1438 }
1439
1440 static int set_branches(int argc, const char **argv)
1441 {
1442         int add_mode = 0;
1443         struct option options[] = {
1444                 OPT_BOOL('\0', "add", &add_mode, N_("add branch")),
1445                 OPT_END()
1446         };
1447
1448         argc = parse_options(argc, argv, NULL, options,
1449                              builtin_remote_setbranches_usage, 0);
1450         if (argc == 0) {
1451                 error(_("no remote specified"));
1452                 usage_with_options(builtin_remote_setbranches_usage, options);
1453         }
1454         argv[argc] = NULL;
1455
1456         return set_remote_branches(argv[0], argv + 1, add_mode);
1457 }
1458
1459 static int get_url(int argc, const char **argv)
1460 {
1461         int i, push_mode = 0, all_mode = 0;
1462         const char *remotename = NULL;
1463         struct remote *remote;
1464         const char **url;
1465         int url_nr;
1466         struct option options[] = {
1467                 OPT_BOOL('\0', "push", &push_mode,
1468                          N_("query push URLs rather than fetch URLs")),
1469                 OPT_BOOL('\0', "all", &all_mode,
1470                          N_("return all URLs")),
1471                 OPT_END()
1472         };
1473         argc = parse_options(argc, argv, NULL, options, builtin_remote_geturl_usage, 0);
1474
1475         if (argc != 1)
1476                 usage_with_options(builtin_remote_geturl_usage, options);
1477
1478         remotename = argv[0];
1479
1480         remote = remote_get(remotename);
1481         if (!remote_is_configured(remote, 1))
1482                 die(_("No such remote '%s'"), remotename);
1483
1484         url_nr = 0;
1485         if (push_mode) {
1486                 url = remote->pushurl;
1487                 url_nr = remote->pushurl_nr;
1488         }
1489         /* else fetch mode */
1490
1491         /* Use the fetch URL when no push URLs were found or requested. */
1492         if (!url_nr) {
1493                 url = remote->url;
1494                 url_nr = remote->url_nr;
1495         }
1496
1497         if (!url_nr)
1498                 die(_("no URLs configured for remote '%s'"), remotename);
1499
1500         if (all_mode) {
1501                 for (i = 0; i < url_nr; i++)
1502                         printf_ln("%s", url[i]);
1503         } else {
1504                 printf_ln("%s", *url);
1505         }
1506
1507         return 0;
1508 }
1509
1510 static int set_url(int argc, const char **argv)
1511 {
1512         int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1513         int matches = 0, negative_matches = 0;
1514         const char *remotename = NULL;
1515         const char *newurl = NULL;
1516         const char *oldurl = NULL;
1517         struct remote *remote;
1518         regex_t old_regex;
1519         const char **urlset;
1520         int urlset_nr;
1521         struct strbuf name_buf = STRBUF_INIT;
1522         struct option options[] = {
1523                 OPT_BOOL('\0', "push", &push_mode,
1524                          N_("manipulate push URLs")),
1525                 OPT_BOOL('\0', "add", &add_mode,
1526                          N_("add URL")),
1527                 OPT_BOOL('\0', "delete", &delete_mode,
1528                             N_("delete URLs")),
1529                 OPT_END()
1530         };
1531         argc = parse_options(argc, argv, NULL, options, builtin_remote_seturl_usage,
1532                              PARSE_OPT_KEEP_ARGV0);
1533
1534         if (add_mode && delete_mode)
1535                 die(_("--add --delete doesn't make sense"));
1536
1537         if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1538                 usage_with_options(builtin_remote_seturl_usage, options);
1539
1540         remotename = argv[1];
1541         newurl = argv[2];
1542         if (argc > 3)
1543                 oldurl = argv[3];
1544
1545         if (delete_mode)
1546                 oldurl = newurl;
1547
1548         remote = remote_get(remotename);
1549         if (!remote_is_configured(remote, 1))
1550                 die(_("No such remote '%s'"), remotename);
1551
1552         if (push_mode) {
1553                 strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1554                 urlset = remote->pushurl;
1555                 urlset_nr = remote->pushurl_nr;
1556         } else {
1557                 strbuf_addf(&name_buf, "remote.%s.url", remotename);
1558                 urlset = remote->url;
1559                 urlset_nr = remote->url_nr;
1560         }
1561
1562         /* Special cases that add new entry. */
1563         if ((!oldurl && !delete_mode) || add_mode) {
1564                 if (add_mode)
1565                         git_config_set_multivar(name_buf.buf, newurl,
1566                                                        "^$", 0);
1567                 else
1568                         git_config_set(name_buf.buf, newurl);
1569                 goto out;
1570         }
1571
1572         /* Old URL specified. Demand that one matches. */
1573         if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1574                 die(_("Invalid old URL pattern: %s"), oldurl);
1575
1576         for (i = 0; i < urlset_nr; i++)
1577                 if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1578                         matches++;
1579                 else
1580                         negative_matches++;
1581         if (!delete_mode && !matches)
1582                 die(_("No such URL found: %s"), oldurl);
1583         if (delete_mode && !negative_matches && !push_mode)
1584                 die(_("Will not delete all non-push URLs"));
1585
1586         regfree(&old_regex);
1587
1588         if (!delete_mode)
1589                 git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1590         else
1591                 git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1592 out:
1593         strbuf_release(&name_buf);
1594         return 0;
1595 }
1596
1597 int cmd_remote(int argc, const char **argv, const char *prefix)
1598 {
1599         struct option options[] = {
1600                 OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")),
1601                 OPT_END()
1602         };
1603         int result;
1604
1605         argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1606                 PARSE_OPT_STOP_AT_NON_OPTION);
1607
1608         if (argc < 1)
1609                 result = show_all();
1610         else if (!strcmp(argv[0], "add"))
1611                 result = add(argc, argv);
1612         else if (!strcmp(argv[0], "rename"))
1613                 result = mv(argc, argv);
1614         else if (!strcmp(argv[0], "rm") || !strcmp(argv[0], "remove"))
1615                 result = rm(argc, argv);
1616         else if (!strcmp(argv[0], "set-head"))
1617                 result = set_head(argc, argv);
1618         else if (!strcmp(argv[0], "set-branches"))
1619                 result = set_branches(argc, argv);
1620         else if (!strcmp(argv[0], "get-url"))
1621                 result = get_url(argc, argv);
1622         else if (!strcmp(argv[0], "set-url"))
1623                 result = set_url(argc, argv);
1624         else if (!strcmp(argv[0], "show"))
1625                 result = show(argc, argv);
1626         else if (!strcmp(argv[0], "prune"))
1627                 result = prune(argc, argv);
1628         else if (!strcmp(argv[0], "update"))
1629                 result = update(argc, argv);
1630         else {
1631                 error(_("Unknown subcommand: %s"), argv[0]);
1632                 usage_with_options(builtin_remote_usage, options);
1633         }
1634
1635         return result ? 1 : 0;
1636 }