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 "rebase.h"
  10 #include "refs.h"
  11 #include "refspec.h"
  12 #include "object-store.h"
  13 #include "strvec.h"
  14 #include "commit-reach.h"
  15
  16 static const char * const builtin_remote_usage[] = {
  17         N_("git remote [-v | --verbose]"),
  18         N_("git remote add [-t <branch>] [-m <master>] [-f] [--tags | --no-tags] [--mirror=<fetch|push>] <name> <url>"),
  19         N_("git remote rename <old> <new>"),
  20         N_("git remote remove <name>"),
  21         N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
  22         N_("git remote [-v | --verbose] show [-n] <name>"),
  23         N_("git remote prune [-n | --dry-run] <name>"),
  24         N_("git remote [-v | --verbose] update [-p | --prune] [(<group> | <remote>)...]"),
  25         N_("git remote set-branches [--add] <name> <branch>..."),
  26         N_("git remote get-url [--push] [--all] <name>"),
  27         N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
  28         N_("git remote set-url --add <name> <newurl>"),
  29         N_("git remote set-url --delete <name> <url>"),
  30         NULL
  31 };
  32
  33 static const char * const builtin_remote_add_usage[] = {
  34         N_("git remote add [<options>] <name> <url>"),
  35         NULL
  36 };
  37
  38 static const char * const builtin_remote_rename_usage[] = {
  39         N_("git remote rename <old> <new>"),
  40         NULL
  41 };
  42
  43 static const char * const builtin_remote_rm_usage[] = {
  44         N_("git remote remove <name>"),
  45         NULL
  46 };
  47
  48 static const char * const builtin_remote_sethead_usage[] = {
  49         N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
  50         NULL
  51 };
  52
  53 static const char * const builtin_remote_setbranches_usage[] = {
  54         N_("git remote set-branches <name> <branch>..."),
  55         N_("git remote set-branches --add <name> <branch>..."),
  56         NULL
  57 };
  58
  59 static const char * const builtin_remote_show_usage[] = {
  60         N_("git remote show [<options>] <name>"),
  61         NULL
  62 };
  63
  64 static const char * const builtin_remote_prune_usage[] = {
  65         N_("git remote prune [<options>] <name>"),
  66         NULL
  67 };
  68
  69 static const char * const builtin_remote_update_usage[] = {
  70         N_("git remote update [<options>] [<group> | <remote>]..."),
  71         NULL
  72 };
  73
  74 static const char * const builtin_remote_geturl_usage[] = {
  75         N_("git remote get-url [--push] [--all] <name>"),
  76         NULL
  77 };
  78
  79 static const char * const builtin_remote_seturl_usage[] = {
  80         N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
  81         N_("git remote set-url --add <name> <newurl>"),
  82         N_("git remote set-url --delete <name> <url>"),
  83         NULL
  84 };
  85
  86 #define GET_REF_STATES (1<<0)
  87 #define GET_HEAD_NAMES (1<<1)
  88 #define GET_PUSH_REF_STATES (1<<2)
  89
  90 static int verbose;
  91
  92 static int fetch_remote(const char *name)
  93 {
  94         const char *argv[] = { "fetch", name, NULL, NULL };
  95         if (verbose) {
  96                 argv[1] = "-v";
  97                 argv[2] = name;
  98         }
  99         printf_ln(_("Updating %s"), name);
 100         if (run_command_v_opt(argv, RUN_GIT_CMD))
 101                 return error(_("Could not fetch %s"), name);
 102         return 0;
 103 }
 104
 105 enum {
 106         TAGS_UNSET = 0,
 107         TAGS_DEFAULT = 1,
 108         TAGS_SET = 2
 109 };
 110
 111 #define MIRROR_NONE 0
 112 #define MIRROR_FETCH 1
 113 #define MIRROR_PUSH 2
 114 #define MIRROR_BOTH (MIRROR_FETCH|MIRROR_PUSH)
 115
 116 static void add_branch(const char *key, const char *branchname,
 117                        const char *remotename, int mirror, struct strbuf *tmp)
 118 {
 119         strbuf_reset(tmp);
 120         strbuf_addch(tmp, '+');
 121         if (mirror)
 122                 strbuf_addf(tmp, "refs/%s:refs/%s",
 123                                 branchname, branchname);
 124         else
 125                 strbuf_addf(tmp, "refs/heads/%s:refs/remotes/%s/%s",
 126                                 branchname, remotename, branchname);
 127         git_config_set_multivar(key, tmp->buf, "^$", 0);
 128 }
 129
 130 static const char mirror_advice[] =
 131 N_("--mirror is dangerous and deprecated; please\n"
 132    "\t use --mirror=fetch or --mirror=push instead");
 133
 134 static int parse_mirror_opt(const struct option *opt, const char *arg, int not)
 135 {
 136         unsigned *mirror = opt->value;
 137         if (not)
 138                 *mirror = MIRROR_NONE;
 139         else if (!arg) {
 140                 warning("%s", _(mirror_advice));
 141                 *mirror = MIRROR_BOTH;
 142         }
 143         else if (!strcmp(arg, "fetch"))
 144                 *mirror = MIRROR_FETCH;
 145         else if (!strcmp(arg, "push"))
 146                 *mirror = MIRROR_PUSH;
 147         else
 148                 return error(_("unknown mirror argument: %s"), arg);
 149         return 0;
 150 }
 151
 152 static int add(int argc, const char **argv)
 153 {
 154         int fetch = 0, fetch_tags = TAGS_DEFAULT;
 155         unsigned mirror = MIRROR_NONE;
 156         struct string_list track = STRING_LIST_INIT_NODUP;
 157         const char *master = NULL;
 158         struct remote *remote;
 159         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
 160         const char *name, *url;
 161         int i;
 162
 163         struct option options[] = {
 164                 OPT_BOOL('f', "fetch", &fetch, N_("fetch the remote branches")),
 165                 OPT_SET_INT(0, "tags", &fetch_tags,
 166                             N_("import all tags and associated objects when fetching"),
 167                             TAGS_SET),
 168                 OPT_SET_INT(0, NULL, &fetch_tags,
 169                             N_("or do not fetch any tag at all (--no-tags)"), TAGS_UNSET),
 170                 OPT_STRING_LIST('t', "track", &track, N_("branch"),
 171                                 N_("branch(es) to track")),
 172                 OPT_STRING('m', "master", &master, N_("branch"), N_("master branch")),
 173                 OPT_CALLBACK_F(0, "mirror", &mirror, "(push|fetch)",
 174                         N_("set up remote as a mirror to push to or fetch from"),
 175                         PARSE_OPT_OPTARG | PARSE_OPT_COMP_ARG, parse_mirror_opt),
 176                 OPT_END()
 177         };
 178
 179         argc = parse_options(argc, argv, NULL, options, builtin_remote_add_usage,
 180                              0);
 181
 182         if (argc != 2)
 183                 usage_with_options(builtin_remote_add_usage, options);
 184
 185         if (mirror && master)
 186                 die(_("specifying a master branch makes no sense with --mirror"));
 187         if (mirror && !(mirror & MIRROR_FETCH) && track.nr)
 188                 die(_("specifying branches to track makes sense only with fetch mirrors"));
 189
 190         name = argv[0];
 191         url = argv[1];
 192
 193         remote = remote_get(name);
 194         if (remote_is_configured(remote, 1))
 195                 die(_("remote %s already exists."), name);
 196
 197         strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
 198         if (!valid_fetch_refspec(buf2.buf))
 199                 die(_("'%s' is not a valid remote name"), name);
 200
 201         strbuf_addf(&buf, "remote.%s.url", name);
 202         git_config_set(buf.buf, url);
 203
 204         if (!mirror || mirror & MIRROR_FETCH) {
 205                 strbuf_reset(&buf);
 206                 strbuf_addf(&buf, "remote.%s.fetch", name);
 207                 if (track.nr == 0)
 208                         string_list_append(&track, "*");
 209                 for (i = 0; i < track.nr; i++) {
 210                         add_branch(buf.buf, track.items[i].string,
 211                                    name, mirror, &buf2);
 212                 }
 213         }
 214
 215         if (mirror & MIRROR_PUSH) {
 216                 strbuf_reset(&buf);
 217                 strbuf_addf(&buf, "remote.%s.mirror", name);
 218                 git_config_set(buf.buf, "true");
 219         }
 220
 221         if (fetch_tags != TAGS_DEFAULT) {
 222                 strbuf_reset(&buf);
 223                 strbuf_addf(&buf, "remote.%s.tagopt", name);
 224                 git_config_set(buf.buf,
 225                                fetch_tags == TAGS_SET ? "--tags" : "--no-tags");
 226         }
 227
 228         if (fetch && fetch_remote(name))
 229                 return 1;
 230
 231         if (master) {
 232                 strbuf_reset(&buf);
 233                 strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
 234
 235                 strbuf_reset(&buf2);
 236                 strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
 237
 238                 if (create_symref(buf.buf, buf2.buf, "remote add"))
 239                         return error(_("Could not setup master '%s'"), master);
 240         }
 241
 242         strbuf_release(&buf);
 243         strbuf_release(&buf2);
 244         string_list_clear(&track, 0);
 245
 246         return 0;
 247 }
 248
 249 struct branch_info {
 250         char *remote_name;
 251         struct string_list merge;
 252         enum rebase_type rebase;
 253         char *push_remote_name;
 254 };
 255
 256 static struct string_list branch_list = STRING_LIST_INIT_NODUP;
 257
 258 static const char *abbrev_ref(const char *name, const char *prefix)
 259 {
 260         skip_prefix(name, prefix, &name);
 261         return name;
 262 }
 263 #define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 264
 265 static int config_read_branches(const char *key, const char *value, void *cb)
 266 {
 267         const char *orig_key = key;
 268         char *name;
 269         struct string_list_item *item;
 270         struct branch_info *info;
 271         enum { REMOTE, MERGE, REBASE, PUSH_REMOTE } type;
 272         size_t key_len;
 273
 274         if (!starts_with(key, "branch."))
 275                 return 0;
 276
 277         key += strlen("branch.");
 278         if (strip_suffix(key, ".remote", &key_len))
 279                 type = REMOTE;
 280         else if (strip_suffix(key, ".merge", &key_len))
 281                 type = MERGE;
 282         else if (strip_suffix(key, ".rebase", &key_len))
 283                 type = REBASE;
 284         else if (strip_suffix(key, ".pushremote", &key_len))
 285                 type = PUSH_REMOTE;
 286         else
 287                 return 0;
 288         name = xmemdupz(key, key_len);
 289
 290         item = string_list_insert(&branch_list, name);
 291
 292         if (!item->util)
 293                 item->util = xcalloc(1, sizeof(struct branch_info));
 294         info = item->util;
 295         switch (type) {
 296         case REMOTE:
 297                 if (info->remote_name)
 298                         warning(_("more than one %s"), orig_key);
 299                 info->remote_name = xstrdup(value);
 300                 break;
 301         case MERGE: {
 302                 char *space = strchr(value, ' ');
 303                 value = abbrev_branch(value);
 304                 while (space) {
 305                         char *merge;
 306                         merge = xstrndup(value, space - value);
 307                         string_list_append(&info->merge, merge);
 308                         value = abbrev_branch(space + 1);
 309                         space = strchr(value, ' ');
 310                 }
 311                 string_list_append(&info->merge, xstrdup(value));
 312                 break;
 313         }
 314         case REBASE:
 315                 /*
 316                  * Consider invalid values as false and check the
 317                  * truth value with >= REBASE_TRUE.
 318                  */
 319                 info->rebase = rebase_parse_value(value);
 320                 break;
 321         case PUSH_REMOTE:
 322                 if (info->push_remote_name)
 323                         warning(_("more than one %s"), orig_key);
 324                 info->push_remote_name = xstrdup(value);
 325                 break;
 326         default:
 327                 BUG("unexpected type=%d", type);
 328         }
 329
 330         return 0;
 331 }
 332
 333 static void read_branches(void)
 334 {
 335         if (branch_list.nr)
 336                 return;
 337         git_config(config_read_branches, NULL);
 338 }
 339
 340 struct ref_states {
 341         struct remote *remote;
 342         struct string_list new_refs, stale, tracked, heads, push;
 343         int queried;
 344 };
 345
 346 static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 347 {
 348         struct ref *fetch_map = NULL, **tail = &fetch_map;
 349         struct ref *ref, *stale_refs;
 350         int i;
 351
 352         for (i = 0; i < states->remote->fetch.nr; i++)
 353                 if (get_fetch_map(remote_refs, &states->remote->fetch.items[i], &tail, 1))
 354                         die(_("Could not get fetch map for refspec %s"),
 355                                 states->remote->fetch.raw[i]);
 356
 357         states->new_refs.strdup_strings = 1;
 358         states->tracked.strdup_strings = 1;
 359         states->stale.strdup_strings = 1;
 360         for (ref = fetch_map; ref; ref = ref->next) {
 361                 if (!ref->peer_ref || !ref_exists(ref->peer_ref->name))
 362                         string_list_append(&states->new_refs, abbrev_branch(ref->name));
 363                 else
 364                         string_list_append(&states->tracked, abbrev_branch(ref->name));
 365         }
 366         stale_refs = get_stale_heads(&states->remote->fetch, fetch_map);
 367         for (ref = stale_refs; ref; ref = ref->next) {
 368                 struct string_list_item *item =
 369                         string_list_append(&states->stale, abbrev_branch(ref->name));
 370                 item->util = xstrdup(ref->name);
 371         }
 372         free_refs(stale_refs);
 373         free_refs(fetch_map);
 374
 375         string_list_sort(&states->new_refs);
 376         string_list_sort(&states->tracked);
 377         string_list_sort(&states->stale);
 378
 379         return 0;
 380 }
 381
 382 struct push_info {
 383         char *dest;
 384         int forced;
 385         enum {
 386                 PUSH_STATUS_CREATE = 0,
 387                 PUSH_STATUS_DELETE,
 388                 PUSH_STATUS_UPTODATE,
 389                 PUSH_STATUS_FASTFORWARD,
 390                 PUSH_STATUS_OUTOFDATE,
 391                 PUSH_STATUS_NOTQUERIED
 392         } status;
 393 };
 394
 395 static int get_push_ref_states(const struct ref *remote_refs,
 396         struct ref_states *states)
 397 {
 398         struct remote *remote = states->remote;
 399         struct ref *ref, *local_refs, *push_map;
 400         if (remote->mirror)
 401                 return 0;
 402
 403         local_refs = get_local_heads();
 404         push_map = copy_ref_list(remote_refs);
 405
 406         match_push_refs(local_refs, &push_map, &remote->push, MATCH_REFS_NONE);
 407
 408         states->push.strdup_strings = 1;
 409         for (ref = push_map; ref; ref = ref->next) {
 410                 struct string_list_item *item;
 411                 struct push_info *info;
 412
 413                 if (!ref->peer_ref)
 414                         continue;
 415                 oidcpy(&ref->new_oid, &ref->peer_ref->new_oid);
 416
 417                 item = string_list_append(&states->push,
 418                                           abbrev_branch(ref->peer_ref->name));
 419                 item->util = xcalloc(1, sizeof(struct push_info));
 420                 info = item->util;
 421                 info->forced = ref->force;
 422                 info->dest = xstrdup(abbrev_branch(ref->name));
 423
 424                 if (is_null_oid(&ref->new_oid)) {
 425                         info->status = PUSH_STATUS_DELETE;
 426                 } else if (oideq(&ref->old_oid, &ref->new_oid))
 427                         info->status = PUSH_STATUS_UPTODATE;
 428                 else if (is_null_oid(&ref->old_oid))
 429                         info->status = PUSH_STATUS_CREATE;
 430                 else if (has_object_file(&ref->old_oid) &&
 431                          ref_newer(&ref->new_oid, &ref->old_oid))
 432                         info->status = PUSH_STATUS_FASTFORWARD;
 433                 else
 434                         info->status = PUSH_STATUS_OUTOFDATE;
 435         }
 436         free_refs(local_refs);
 437         free_refs(push_map);
 438         return 0;
 439 }
 440
 441 static int get_push_ref_states_noquery(struct ref_states *states)
 442 {
 443         int i;
 444         struct remote *remote = states->remote;
 445         struct string_list_item *item;
 446         struct push_info *info;
 447
 448         if (remote->mirror)
 449                 return 0;
 450
 451         states->push.strdup_strings = 1;
 452         if (!remote->push.nr) {
 453                 item = string_list_append(&states->push, _("(matching)"));
 454                 info = item->util = xcalloc(1, sizeof(struct push_info));
 455                 info->status = PUSH_STATUS_NOTQUERIED;
 456                 info->dest = xstrdup(item->string);
 457         }
 458         for (i = 0; i < remote->push.nr; i++) {
 459                 const struct refspec_item *spec = &remote->push.items[i];
 460                 if (spec->matching)
 461                         item = string_list_append(&states->push, _("(matching)"));
 462                 else if (strlen(spec->src))
 463                         item = string_list_append(&states->push, spec->src);
 464                 else
 465                         item = string_list_append(&states->push, _("(delete)"));
 466
 467                 info = item->util = xcalloc(1, sizeof(struct push_info));
 468                 info->forced = spec->force;
 469                 info->status = PUSH_STATUS_NOTQUERIED;
 470                 info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 471         }
 472         return 0;
 473 }
 474
 475 static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 476 {
 477         struct ref *ref, *matches;
 478         struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 479         struct refspec_item refspec;
 480
 481         memset(&refspec, 0, sizeof(refspec));
 482         refspec.force = 0;
 483         refspec.pattern = 1;
 484         refspec.src = refspec.dst = "refs/heads/*";
 485         states->heads.strdup_strings = 1;
 486         get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 487         matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 488                                     fetch_map, 1);
 489         for (ref = matches; ref; ref = ref->next)
 490                 string_list_append(&states->heads, abbrev_branch(ref->name));
 491
 492         free_refs(fetch_map);
 493         free_refs(matches);
 494
 495         return 0;
 496 }
 497
 498 struct known_remote {
 499         struct known_remote *next;
 500         struct remote *remote;
 501 };
 502
 503 struct known_remotes {
 504         struct remote *to_delete;
 505         struct known_remote *list;
 506 };
 507
 508 static int add_known_remote(struct remote *remote, void *cb_data)
 509 {
 510         struct known_remotes *all = cb_data;
 511         struct known_remote *r;
 512
 513         if (!strcmp(all->to_delete->name, remote->name))
 514                 return 0;
 515
 516         r = xmalloc(sizeof(*r));
 517         r->remote = remote;
 518         r->next = all->list;
 519         all->list = r;
 520         return 0;
 521 }
 522
 523 struct branches_for_remote {
 524         struct remote *remote;
 525         struct string_list *branches, *skipped;
 526         struct known_remotes *keep;
 527 };
 528
 529 static int add_branch_for_removal(const char *refname,
 530         const struct object_id *oid, int flags, void *cb_data)
 531 {
 532         struct branches_for_remote *branches = cb_data;
 533         struct refspec_item refspec;
 534         struct known_remote *kr;
 535
 536         memset(&refspec, 0, sizeof(refspec));
 537         refspec.dst = (char *)refname;
 538         if (remote_find_tracking(branches->remote, &refspec))
 539                 return 0;
 540
 541         /* don't delete a branch if another remote also uses it */
 542         for (kr = branches->keep->list; kr; kr = kr->next) {
 543                 memset(&refspec, 0, sizeof(refspec));
 544                 refspec.dst = (char *)refname;
 545                 if (!remote_find_tracking(kr->remote, &refspec))
 546                         return 0;
 547         }
 548
 549         /* don't delete non-remote-tracking refs */
 550         if (!starts_with(refname, "refs/remotes/")) {
 551                 /* advise user how to delete local branches */
 552                 if (starts_with(refname, "refs/heads/"))
 553                         string_list_append(branches->skipped,
 554                                            abbrev_branch(refname));
 555                 /* silently skip over other non-remote refs */
 556                 return 0;
 557         }
 558
 559         string_list_append(branches->branches, refname);
 560
 561         return 0;
 562 }
 563
 564 struct rename_info {
 565         const char *old_name;
 566         const char *new_name;
 567         struct string_list *remote_branches;
 568 };
 569
 570 static int read_remote_branches(const char *refname,
 571         const struct object_id *oid, int flags, void *cb_data)
 572 {
 573         struct rename_info *rename = cb_data;
 574         struct strbuf buf = STRBUF_INIT;
 575         struct string_list_item *item;
 576         int flag;
 577         const char *symref;
 578
 579         strbuf_addf(&buf, "refs/remotes/%s/", rename->old_name);
 580         if (starts_with(refname, buf.buf)) {
 581                 item = string_list_append(rename->remote_branches, refname);
 582                 symref = resolve_ref_unsafe(refname, RESOLVE_REF_READING,
 583                                             NULL, &flag);
 584                 if (symref && (flag & REF_ISSYMREF))
 585                         item->util = xstrdup(symref);
 586                 else
 587                         item->util = NULL;
 588         }
 589         strbuf_release(&buf);
 590
 591         return 0;
 592 }
 593
 594 static int migrate_file(struct remote *remote)
 595 {
 596         struct strbuf buf = STRBUF_INIT;
 597         int i;
 598
 599         strbuf_addf(&buf, "remote.%s.url", remote->name);
 600         for (i = 0; i < remote->url_nr; i++)
 601                 git_config_set_multivar(buf.buf, remote->url[i], "^$", 0);
 602         strbuf_reset(&buf);
 603         strbuf_addf(&buf, "remote.%s.push", remote->name);
 604         for (i = 0; i < remote->push.raw_nr; i++)
 605                 git_config_set_multivar(buf.buf, remote->push.raw[i], "^$", 0);
 606         strbuf_reset(&buf);
 607         strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 608         for (i = 0; i < remote->fetch.raw_nr; i++)
 609                 git_config_set_multivar(buf.buf, remote->fetch.raw[i], "^$", 0);
 610         if (remote->origin == REMOTE_REMOTES)
 611                 unlink_or_warn(git_path("remotes/%s", remote->name));
 612         else if (remote->origin == REMOTE_BRANCHES)
 613                 unlink_or_warn(git_path("branches/%s", remote->name));
 614         strbuf_release(&buf);
 615
 616         return 0;
 617 }
 618
 619 struct push_default_info
 620 {
 621         const char *old_name;
 622         enum config_scope scope;
 623         struct strbuf origin;
 624         int linenr;
 625 };
 626
 627 static int config_read_push_default(const char *key, const char *value,
 628         void *cb)
 629 {
 630         struct push_default_info* info = cb;
 631         if (strcmp(key, "remote.pushdefault") ||
 632             !value || strcmp(value, info->old_name))
 633                 return 0;
 634
 635         info->scope = current_config_scope();
 636         strbuf_reset(&info->origin);
 637         strbuf_addstr(&info->origin, current_config_name());
 638         info->linenr = current_config_line();
 639
 640         return 0;
 641 }
 642
 643 static void handle_push_default(const char* old_name, const char* new_name)
 644 {
 645         struct push_default_info push_default = {
 646                 old_name, CONFIG_SCOPE_UNKNOWN, STRBUF_INIT, -1 };
 647         git_config(config_read_push_default, &push_default);
 648         if (push_default.scope >= CONFIG_SCOPE_COMMAND)
 649                 ; /* pass */
 650         else if (push_default.scope >= CONFIG_SCOPE_LOCAL) {
 651                 int result = git_config_set_gently("remote.pushDefault",
 652                                                    new_name);
 653                 if (new_name && result && result != CONFIG_NOTHING_SET)
 654                         die(_("could not set '%s'"), "remote.pushDefault");
 655                 else if (!new_name && result && result != CONFIG_NOTHING_SET)
 656                         die(_("could not unset '%s'"), "remote.pushDefault");
 657         } else if (push_default.scope >= CONFIG_SCOPE_SYSTEM) {
 658                 /* warn */
 659                 warning(_("The %s configuration remote.pushDefault in:\n"
 660                           "\t%s:%d\n"
 661                           "now names the non-existent remote '%s'"),
 662                         config_scope_name(push_default.scope),
 663                         push_default.origin.buf, push_default.linenr,
 664                         old_name);
 665         }
 666 }
 667
 668
 669 static int mv(int argc, const char **argv)
 670 {
 671         struct option options[] = {
 672                 OPT_END()
 673         };
 674         struct remote *oldremote, *newremote;
 675         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT,
 676                 old_remote_context = STRBUF_INIT;
 677         struct string_list remote_branches = STRING_LIST_INIT_DUP;
 678         struct rename_info rename;
 679         int i, refspec_updated = 0;
 680
 681         if (argc != 3)
 682                 usage_with_options(builtin_remote_rename_usage, options);
 683
 684         rename.old_name = argv[1];
 685         rename.new_name = argv[2];
 686         rename.remote_branches = &remote_branches;
 687
 688         oldremote = remote_get(rename.old_name);
 689         if (!remote_is_configured(oldremote, 1))
 690                 die(_("No such remote: '%s'"), rename.old_name);
 691
 692         if (!strcmp(rename.old_name, rename.new_name) && oldremote->origin != REMOTE_CONFIG)
 693                 return migrate_file(oldremote);
 694
 695         newremote = remote_get(rename.new_name);
 696         if (remote_is_configured(newremote, 1))
 697                 die(_("remote %s already exists."), rename.new_name);
 698
 699         strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new_name);
 700         if (!valid_fetch_refspec(buf.buf))
 701                 die(_("'%s' is not a valid remote name"), rename.new_name);
 702
 703         strbuf_reset(&buf);
 704         strbuf_addf(&buf, "remote.%s", rename.old_name);
 705         strbuf_addf(&buf2, "remote.%s", rename.new_name);
 706         if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 707                 return error(_("Could not rename config section '%s' to '%s'"),
 708                                 buf.buf, buf2.buf);
 709
 710         strbuf_reset(&buf);
 711         strbuf_addf(&buf, "remote.%s.fetch", rename.new_name);
 712         git_config_set_multivar(buf.buf, NULL, NULL, 1);
 713         strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old_name);
 714         for (i = 0; i < oldremote->fetch.raw_nr; i++) {
 715                 char *ptr;
 716
 717                 strbuf_reset(&buf2);
 718                 strbuf_addstr(&buf2, oldremote->fetch.raw[i]);
 719                 ptr = strstr(buf2.buf, old_remote_context.buf);
 720                 if (ptr) {
 721                         refspec_updated = 1;
 722                         strbuf_splice(&buf2,
 723                                       ptr-buf2.buf + strlen(":refs/remotes/"),
 724                                       strlen(rename.old_name), rename.new_name,
 725                                       strlen(rename.new_name));
 726                 } else
 727                         warning(_("Not updating non-default fetch refspec\n"
 728                                   "\t%s\n"
 729                                   "\tPlease update the configuration manually if necessary."),
 730                                 buf2.buf);
 731
 732                 git_config_set_multivar(buf.buf, buf2.buf, "^$", 0);
 733         }
 734
 735         read_branches();
 736         for (i = 0; i < branch_list.nr; i++) {
 737                 struct string_list_item *item = branch_list.items + i;
 738                 struct branch_info *info = item->util;
 739                 if (info->remote_name && !strcmp(info->remote_name, rename.old_name)) {
 740                         strbuf_reset(&buf);
 741                         strbuf_addf(&buf, "branch.%s.remote", item->string);
 742                         git_config_set(buf.buf, rename.new_name);
 743                 }
 744                 if (info->push_remote_name && !strcmp(info->push_remote_name, rename.old_name)) {
 745                         strbuf_reset(&buf);
 746                         strbuf_addf(&buf, "branch.%s.pushremote", item->string);
 747                         git_config_set(buf.buf, rename.new_name);
 748                 }
 749         }
 750
 751         if (!refspec_updated)
 752                 return 0;
 753
 754         /*
 755          * First remove symrefs, then rename the rest, finally create
 756          * the new symrefs.
 757          */
 758         for_each_ref(read_remote_branches, &rename);
 759         for (i = 0; i < remote_branches.nr; i++) {
 760                 struct string_list_item *item = remote_branches.items + i;
 761                 int flag = 0;
 762
 763                 read_ref_full(item->string, RESOLVE_REF_READING, NULL, &flag);
 764                 if (!(flag & REF_ISSYMREF))
 765                         continue;
 766                 if (delete_ref(NULL, item->string, NULL, REF_NO_DEREF))
 767                         die(_("deleting '%s' failed"), item->string);
 768         }
 769         for (i = 0; i < remote_branches.nr; i++) {
 770                 struct string_list_item *item = remote_branches.items + i;
 771
 772                 if (item->util)
 773                         continue;
 774                 strbuf_reset(&buf);
 775                 strbuf_addstr(&buf, item->string);
 776                 strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old_name),
 777                                 rename.new_name, strlen(rename.new_name));
 778                 strbuf_reset(&buf2);
 779                 strbuf_addf(&buf2, "remote: renamed %s to %s",
 780                                 item->string, buf.buf);
 781                 if (rename_ref(item->string, buf.buf, buf2.buf))
 782                         die(_("renaming '%s' failed"), item->string);
 783         }
 784         for (i = 0; i < remote_branches.nr; i++) {
 785                 struct string_list_item *item = remote_branches.items + i;
 786
 787                 if (!item->util)
 788                         continue;
 789                 strbuf_reset(&buf);
 790                 strbuf_addstr(&buf, item->string);
 791                 strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old_name),
 792                                 rename.new_name, strlen(rename.new_name));
 793                 strbuf_reset(&buf2);
 794                 strbuf_addstr(&buf2, item->util);
 795                 strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old_name),
 796                                 rename.new_name, strlen(rename.new_name));
 797                 strbuf_reset(&buf3);
 798                 strbuf_addf(&buf3, "remote: renamed %s to %s",
 799                                 item->string, buf.buf);
 800                 if (create_symref(buf.buf, buf2.buf, buf3.buf))
 801                         die(_("creating '%s' failed"), buf.buf);
 802         }
 803         string_list_clear(&remote_branches, 1);
 804
 805         handle_push_default(rename.old_name, rename.new_name);
 806
 807         return 0;
 808 }
 809
 810 static int rm(int argc, const char **argv)
 811 {
 812         struct option options[] = {
 813                 OPT_END()
 814         };
 815         struct remote *remote;
 816         struct strbuf buf = STRBUF_INIT;
 817         struct known_remotes known_remotes = { NULL, NULL };
 818         struct string_list branches = STRING_LIST_INIT_DUP;
 819         struct string_list skipped = STRING_LIST_INIT_DUP;
 820         struct branches_for_remote cb_data;
 821         int i, result;
 822
 823         memset(&cb_data, 0, sizeof(cb_data));
 824         cb_data.branches = &branches;
 825         cb_data.skipped = &skipped;
 826         cb_data.keep = &known_remotes;
 827
 828         if (argc != 2)
 829                 usage_with_options(builtin_remote_rm_usage, options);
 830
 831         remote = remote_get(argv[1]);
 832         if (!remote_is_configured(remote, 1))
 833                 die(_("No such remote: '%s'"), argv[1]);
 834
 835         known_remotes.to_delete = remote;
 836         for_each_remote(add_known_remote, &known_remotes);
 837
 838         read_branches();
 839         for (i = 0; i < branch_list.nr; i++) {
 840                 struct string_list_item *item = branch_list.items + i;
 841                 struct branch_info *info = item->util;
 842                 if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 843                         const char *keys[] = { "remote", "merge", NULL }, **k;
 844                         for (k = keys; *k; k++) {
 845                                 strbuf_reset(&buf);
 846                                 strbuf_addf(&buf, "branch.%s.%s",
 847                                                 item->string, *k);
 848                                 result = git_config_set_gently(buf.buf, NULL);
 849                                 if (result && result != CONFIG_NOTHING_SET)
 850                                         die(_("could not unset '%s'"), buf.buf);
 851                         }
 852                 }
 853                 if (info->push_remote_name && !strcmp(info->push_remote_name, remote->name)) {
 854                         strbuf_reset(&buf);
 855                         strbuf_addf(&buf, "branch.%s.pushremote", item->string);
 856                         result = git_config_set_gently(buf.buf, NULL);
 857                         if (result && result != CONFIG_NOTHING_SET)
 858                                 die(_("could not unset '%s'"), buf.buf);
 859                 }
 860         }
 861
 862         /*
 863          * We cannot just pass a function to for_each_ref() which deletes
 864          * the branches one by one, since for_each_ref() relies on cached
 865          * refs, which are invalidated when deleting a branch.
 866          */
 867         cb_data.remote = remote;
 868         result = for_each_ref(add_branch_for_removal, &cb_data);
 869         strbuf_release(&buf);
 870
 871         if (!result)
 872                 result = delete_refs("remote: remove", &branches, REF_NO_DEREF);
 873         string_list_clear(&branches, 0);
 874
 875         if (skipped.nr) {
 876                 fprintf_ln(stderr,
 877                            Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 878                               "to delete it, use:",
 879                               "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 880                               "to delete them, use:",
 881                               skipped.nr));
 882                 for (i = 0; i < skipped.nr; i++)
 883                         fprintf(stderr, "  git branch -d %s\n",
 884                                 skipped.items[i].string);
 885         }
 886         string_list_clear(&skipped, 0);
 887
 888         if (!result) {
 889                 strbuf_addf(&buf, "remote.%s", remote->name);
 890                 if (git_config_rename_section(buf.buf, NULL) < 1)
 891                         return error(_("Could not remove config section '%s'"), buf.buf);
 892
 893                 handle_push_default(remote->name, NULL);
 894         }
 895
 896         return result;
 897 }
 898
 899 static void clear_push_info(void *util, const char *string)
 900 {
 901         struct push_info *info = util;
 902         free(info->dest);
 903         free(info);
 904 }
 905
 906 static void free_remote_ref_states(struct ref_states *states)
 907 {
 908         string_list_clear(&states->new_refs, 0);
 909         string_list_clear(&states->stale, 1);
 910         string_list_clear(&states->tracked, 0);
 911         string_list_clear(&states->heads, 0);
 912         string_list_clear_func(&states->push, clear_push_info);
 913 }
 914
 915 static int append_ref_to_tracked_list(const char *refname,
 916         const struct object_id *oid, int flags, void *cb_data)
 917 {
 918         struct ref_states *states = cb_data;
 919         struct refspec_item refspec;
 920
 921         if (flags & REF_ISSYMREF)
 922                 return 0;
 923
 924         memset(&refspec, 0, sizeof(refspec));
 925         refspec.dst = (char *)refname;
 926         if (!remote_find_tracking(states->remote, &refspec))
 927                 string_list_append(&states->tracked, abbrev_branch(refspec.src));
 928
 929         return 0;
 930 }
 931
 932 static int get_remote_ref_states(const char *name,
 933                                  struct ref_states *states,
 934                                  int query)
 935 {
 936         struct transport *transport;
 937         const struct ref *remote_refs;
 938
 939         states->remote = remote_get(name);
 940         if (!states->remote)
 941                 return error(_("No such remote: '%s'"), name);
 942
 943         read_branches();
 944
 945         if (query) {
 946                 transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 947                         states->remote->url[0] : NULL);
 948                 remote_refs = transport_get_remote_refs(transport, NULL);
 949                 transport_disconnect(transport);
 950
 951                 states->queried = 1;
 952                 if (query & GET_REF_STATES)
 953                         get_ref_states(remote_refs, states);
 954                 if (query & GET_HEAD_NAMES)
 955                         get_head_names(remote_refs, states);
 956                 if (query & GET_PUSH_REF_STATES)
 957                         get_push_ref_states(remote_refs, states);
 958         } else {
 959                 for_each_ref(append_ref_to_tracked_list, states);
 960                 string_list_sort(&states->tracked);
 961                 get_push_ref_states_noquery(states);
 962         }
 963
 964         return 0;
 965 }
 966
 967 struct show_info {
 968         struct string_list *list;
 969         struct ref_states *states;
 970         int width, width2;
 971         int any_rebase;
 972 };
 973
 974 static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 975 {
 976         struct show_info *info = cb_data;
 977         int n = strlen(item->string);
 978         if (n > info->width)
 979                 info->width = n;
 980         string_list_insert(info->list, item->string);
 981         return 0;
 982 }
 983
 984 static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 985 {
 986         struct show_info *info = cb_data;
 987         struct ref_states *states = info->states;
 988         const char *name = item->string;
 989
 990         if (states->queried) {
 991                 const char *fmt = "%s";
 992                 const char *arg = "";
 993                 if (string_list_has_string(&states->new_refs, name)) {
 994                         fmt = _(" new (next fetch will store in remotes/%s)");
 995                         arg = states->remote->name;
 996                 } else if (string_list_has_string(&states->tracked, name))
 997                         arg = _(" tracked");
 998                 else if (string_list_has_string(&states->stale, name))
 999                         arg = _(" stale (use 'git remote prune' to remove)");
1000                 else
1001                         arg = _(" ???");
1002                 printf("    %-*s", info->width, name);
1003                 printf(fmt, arg);
1004                 printf("\n");
1005         } else
1006                 printf("    %s\n", name);
1007
1008         return 0;
1009 }
1010
1011 static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
1012 {
1013         struct show_info *show_info = cb_data;
1014         struct ref_states *states = show_info->states;
1015         struct branch_info *branch_info = branch_item->util;
1016         struct string_list_item *item;
1017         int n;
1018
1019         if (!branch_info->merge.nr || !branch_info->remote_name ||
1020             strcmp(states->remote->name, branch_info->remote_name))
1021                 return 0;
1022         if ((n = strlen(branch_item->string)) > show_info->width)
1023                 show_info->width = n;
1024         if (branch_info->rebase >= REBASE_TRUE)
1025                 show_info->any_rebase = 1;
1026
1027         item = string_list_insert(show_info->list, branch_item->string);
1028         item->util = branch_info;
1029
1030         return 0;
1031 }
1032
1033 static int show_local_info_item(struct string_list_item *item, void *cb_data)
1034 {
1035         struct show_info *show_info = cb_data;
1036         struct branch_info *branch_info = item->util;
1037         struct string_list *merge = &branch_info->merge;
1038         int width = show_info->width + 4;
1039         int i;
1040
1041         if (branch_info->rebase >= REBASE_TRUE && branch_info->merge.nr > 1) {
1042                 error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"),
1043                         item->string);
1044                 return 0;
1045         }
1046
1047         printf("    %-*s ", show_info->width, item->string);
1048         if (branch_info->rebase >= REBASE_TRUE) {
1049                 const char *msg;
1050                 if (branch_info->rebase == REBASE_INTERACTIVE)
1051                         msg = _("rebases interactively onto remote %s");
1052                 else if (branch_info->rebase == REBASE_MERGES)
1053                         msg = _("rebases interactively (with merges) onto "
1054                                 "remote %s");
1055                 else
1056                         msg = _("rebases onto remote %s");
1057                 printf_ln(msg, merge->items[0].string);
1058                 return 0;
1059         } else if (show_info->any_rebase) {
1060                 printf_ln(_(" merges with remote %s"), merge->items[0].string);
1061                 width++;
1062         } else {
1063                 printf_ln(_("merges with remote %s"), merge->items[0].string);
1064         }
1065         for (i = 1; i < merge->nr; i++)
1066                 printf(_("%-*s    and with remote %s\n"), width, "",
1067                        merge->items[i].string);
1068
1069         return 0;
1070 }
1071
1072 static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
1073 {
1074         struct show_info *show_info = cb_data;
1075         struct push_info *push_info = push_item->util;
1076         struct string_list_item *item;
1077         int n;
1078         if ((n = strlen(push_item->string)) > show_info->width)
1079                 show_info->width = n;
1080         if ((n = strlen(push_info->dest)) > show_info->width2)
1081                 show_info->width2 = n;
1082         item = string_list_append(show_info->list, push_item->string);
1083         item->util = push_item->util;
1084         return 0;
1085 }
1086
1087 /*
1088  * Sorting comparison for a string list that has push_info
1089  * structs in its util field
1090  */
1091 static int cmp_string_with_push(const void *va, const void *vb)
1092 {
1093         const struct string_list_item *a = va;
1094         const struct string_list_item *b = vb;
1095         const struct push_info *a_push = a->util;
1096         const struct push_info *b_push = b->util;
1097         int cmp = strcmp(a->string, b->string);
1098         return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1099 }
1100
1101 static int show_push_info_item(struct string_list_item *item, void *cb_data)
1102 {
1103         struct show_info *show_info = cb_data;
1104         struct push_info *push_info = item->util;
1105         const char *src = item->string, *status = NULL;
1106
1107         switch (push_info->status) {
1108         case PUSH_STATUS_CREATE:
1109                 status = _("create");
1110                 break;
1111         case PUSH_STATUS_DELETE:
1112                 status = _("delete");
1113                 src = _("(none)");
1114                 break;
1115         case PUSH_STATUS_UPTODATE:
1116                 status = _("up to date");
1117                 break;
1118         case PUSH_STATUS_FASTFORWARD:
1119                 status = _("fast-forwardable");
1120                 break;
1121         case PUSH_STATUS_OUTOFDATE:
1122                 status = _("local out of date");
1123                 break;
1124         case PUSH_STATUS_NOTQUERIED:
1125                 break;
1126         }
1127         if (status) {
1128                 if (push_info->forced)
1129                         printf_ln(_("    %-*s forces to %-*s (%s)"), show_info->width, src,
1130                                show_info->width2, push_info->dest, status);
1131                 else
1132                         printf_ln(_("    %-*s pushes to %-*s (%s)"), show_info->width, src,
1133                                show_info->width2, push_info->dest, status);
1134         } else {
1135                 if (push_info->forced)
1136                         printf_ln(_("    %-*s forces to %s"), show_info->width, src,
1137                                push_info->dest);
1138                 else
1139                         printf_ln(_("    %-*s pushes to %s"), show_info->width, src,
1140                                push_info->dest);
1141         }
1142         return 0;
1143 }
1144
1145 static int get_one_entry(struct remote *remote, void *priv)
1146 {
1147         struct string_list *list = priv;
1148         struct strbuf url_buf = STRBUF_INIT;
1149         const char **url;
1150         int i, url_nr;
1151
1152         if (remote->url_nr > 0) {
1153                 strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1154                 string_list_append(list, remote->name)->util =
1155                                 strbuf_detach(&url_buf, NULL);
1156         } else
1157                 string_list_append(list, remote->name)->util = NULL;
1158         if (remote->pushurl_nr) {
1159                 url = remote->pushurl;
1160                 url_nr = remote->pushurl_nr;
1161         } else {
1162                 url = remote->url;
1163                 url_nr = remote->url_nr;
1164         }
1165         for (i = 0; i < url_nr; i++)
1166         {
1167                 strbuf_addf(&url_buf, "%s (push)", url[i]);
1168                 string_list_append(list, remote->name)->util =
1169                                 strbuf_detach(&url_buf, NULL);
1170         }
1171
1172         return 0;
1173 }
1174
1175 static int show_all(void)
1176 {
1177         struct string_list list = STRING_LIST_INIT_NODUP;
1178         int result;
1179
1180         list.strdup_strings = 1;
1181         result = for_each_remote(get_one_entry, &list);
1182
1183         if (!result) {
1184                 int i;
1185
1186                 string_list_sort(&list);
1187                 for (i = 0; i < list.nr; i++) {
1188                         struct string_list_item *item = list.items + i;
1189                         if (verbose)
1190                                 printf("%s\t%s\n", item->string,
1191                                         item->util ? (const char *)item->util : "");
1192                         else {
1193                                 if (i && !strcmp((item - 1)->string, item->string))
1194                                         continue;
1195                                 printf("%s\n", item->string);
1196                         }
1197                 }
1198         }
1199         string_list_clear(&list, 1);
1200         return result;
1201 }
1202
1203 static int show(int argc, const char **argv)
1204 {
1205         int no_query = 0, result = 0, query_flag = 0;
1206         struct option options[] = {
1207                 OPT_BOOL('n', NULL, &no_query, N_("do not query remotes")),
1208                 OPT_END()
1209         };
1210         struct ref_states states;
1211         struct string_list info_list = STRING_LIST_INIT_NODUP;
1212         struct show_info info;
1213
1214         argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1215                              0);
1216
1217         if (argc < 1)
1218                 return show_all();
1219
1220         if (!no_query)
1221                 query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1222
1223         memset(&states, 0, sizeof(states));
1224         memset(&info, 0, sizeof(info));
1225         info.states = &states;
1226         info.list = &info_list;
1227         for (; argc; argc--, argv++) {
1228                 int i;
1229                 const char **url;
1230                 int url_nr;
1231
1232                 get_remote_ref_states(*argv, &states, query_flag);
1233
1234                 printf_ln(_("* remote %s"), *argv);
1235                 printf_ln(_("  Fetch URL: %s"), states.remote->url_nr > 0 ?
1236                        states.remote->url[0] : _("(no URL)"));
1237                 if (states.remote->pushurl_nr) {
1238                         url = states.remote->pushurl;
1239                         url_nr = states.remote->pushurl_nr;
1240                 } else {
1241                         url = states.remote->url;
1242                         url_nr = states.remote->url_nr;
1243                 }
1244                 for (i = 0; i < url_nr; i++)
1245                         /*
1246                          * TRANSLATORS: the colon ':' should align
1247                          * with the one in " Fetch URL: %s"
1248                          * translation.
1249                          */
1250                         printf_ln(_("  Push  URL: %s"), url[i]);
1251                 if (!i)
1252                         printf_ln(_("  Push  URL: %s"), _("(no URL)"));
1253                 if (no_query)
1254                         printf_ln(_("  HEAD branch: %s"), _("(not queried)"));
1255                 else if (!states.heads.nr)
1256                         printf_ln(_("  HEAD branch: %s"), _("(unknown)"));
1257                 else if (states.heads.nr == 1)
1258                         printf_ln(_("  HEAD branch: %s"), states.heads.items[0].string);
1259                 else {
1260                         printf(_("  HEAD branch (remote HEAD is ambiguous,"
1261                                  " may be one of the following):\n"));
1262                         for (i = 0; i < states.heads.nr; i++)
1263                                 printf("    %s\n", states.heads.items[i].string);
1264                 }
1265
1266                 /* remote branch info */
1267                 info.width = 0;
1268                 for_each_string_list(&states.new_refs, add_remote_to_show_info, &info);
1269                 for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1270                 for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1271                 if (info.list->nr)
1272                         printf_ln(Q_("  Remote branch:%s",
1273                                      "  Remote branches:%s",
1274                                      info.list->nr),
1275                                   no_query ? _(" (status not queried)") : "");
1276                 for_each_string_list(info.list, show_remote_info_item, &info);
1277                 string_list_clear(info.list, 0);
1278
1279                 /* git pull info */
1280                 info.width = 0;
1281                 info.any_rebase = 0;
1282                 for_each_string_list(&branch_list, add_local_to_show_info, &info);
1283                 if (info.list->nr)
1284                         printf_ln(Q_("  Local branch configured for 'git pull':",
1285                                      "  Local branches configured for 'git pull':",
1286                                      info.list->nr));
1287                 for_each_string_list(info.list, show_local_info_item, &info);
1288                 string_list_clear(info.list, 0);
1289
1290                 /* git push info */
1291                 if (states.remote->mirror)
1292                         printf_ln(_("  Local refs will be mirrored by 'git push'"));
1293
1294                 info.width = info.width2 = 0;
1295                 for_each_string_list(&states.push, add_push_to_show_info, &info);
1296                 QSORT(info.list->items, info.list->nr, cmp_string_with_push);
1297                 if (info.list->nr)
1298                         printf_ln(Q_("  Local ref configured for 'git push'%s:",
1299                                      "  Local refs configured for 'git push'%s:",
1300                                      info.list->nr),
1301                                   no_query ? _(" (status not queried)") : "");
1302                 for_each_string_list(info.list, show_push_info_item, &info);
1303                 string_list_clear(info.list, 0);
1304
1305                 free_remote_ref_states(&states);
1306         }
1307
1308         return result;
1309 }
1310
1311 static int set_head(int argc, const char **argv)
1312 {
1313         int i, opt_a = 0, opt_d = 0, result = 0;
1314         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1315         char *head_name = NULL;
1316
1317         struct option options[] = {
1318                 OPT_BOOL('a', "auto", &opt_a,
1319                          N_("set refs/remotes/<name>/HEAD according to remote")),
1320                 OPT_BOOL('d', "delete", &opt_d,
1321                          N_("delete refs/remotes/<name>/HEAD")),
1322                 OPT_END()
1323         };
1324         argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1325                              0);
1326         if (argc)
1327                 strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1328
1329         if (!opt_a && !opt_d && argc == 2) {
1330                 head_name = xstrdup(argv[1]);
1331         } else if (opt_a && !opt_d && argc == 1) {
1332                 struct ref_states states;
1333                 memset(&states, 0, sizeof(states));
1334                 get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1335                 if (!states.heads.nr)
1336                         result |= error(_("Cannot determine remote HEAD"));
1337                 else if (states.heads.nr > 1) {
1338                         result |= error(_("Multiple remote HEAD branches. "
1339                                           "Please choose one explicitly with:"));
1340                         for (i = 0; i < states.heads.nr; i++)
1341                                 fprintf(stderr, "  git remote set-head %s %s\n",
1342                                         argv[0], states.heads.items[i].string);
1343                 } else
1344                         head_name = xstrdup(states.heads.items[0].string);
1345                 free_remote_ref_states(&states);
1346         } else if (opt_d && !opt_a && argc == 1) {
1347                 if (delete_ref(NULL, buf.buf, NULL, REF_NO_DEREF))
1348                         result |= error(_("Could not delete %s"), buf.buf);
1349         } else
1350                 usage_with_options(builtin_remote_sethead_usage, options);
1351
1352         if (head_name) {
1353                 strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1354                 /* make sure it's valid */
1355                 if (!ref_exists(buf2.buf))
1356                         result |= error(_("Not a valid ref: %s"), buf2.buf);
1357                 else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1358                         result |= error(_("Could not setup %s"), buf.buf);
1359                 else if (opt_a)
1360                         printf("%s/HEAD set to %s\n", argv[0], head_name);
1361                 free(head_name);
1362         }
1363
1364         strbuf_release(&buf);
1365         strbuf_release(&buf2);
1366         return result;
1367 }
1368
1369 static int prune_remote(const char *remote, int dry_run)
1370 {
1371         int result = 0;
1372         struct ref_states states;
1373         struct string_list refs_to_prune = STRING_LIST_INIT_NODUP;
1374         struct string_list_item *item;
1375         const char *dangling_msg = dry_run
1376                 ? _(" %s will become dangling!")
1377                 : _(" %s has become dangling!");
1378
1379         memset(&states, 0, sizeof(states));
1380         get_remote_ref_states(remote, &states, GET_REF_STATES);
1381
1382         if (!states.stale.nr) {
1383                 free_remote_ref_states(&states);
1384                 return 0;
1385         }
1386
1387         printf_ln(_("Pruning %s"), remote);
1388         printf_ln(_("URL: %s"),
1389                   states.remote->url_nr
1390                   ? states.remote->url[0]
1391                   : _("(no URL)"));
1392
1393         for_each_string_list_item(item, &states.stale)
1394                 string_list_append(&refs_to_prune, item->util);
1395         string_list_sort(&refs_to_prune);
1396
1397         if (!dry_run)
1398                 result |= delete_refs("remote: prune", &refs_to_prune, 0);
1399
1400         for_each_string_list_item(item, &states.stale) {
1401                 const char *refname = item->util;
1402
1403                 if (dry_run)
1404                         printf_ln(_(" * [would prune] %s"),
1405                                abbrev_ref(refname, "refs/remotes/"));
1406                 else
1407                         printf_ln(_(" * [pruned] %s"),
1408                                abbrev_ref(refname, "refs/remotes/"));
1409         }
1410
1411         warn_dangling_symrefs(stdout, dangling_msg, &refs_to_prune);
1412
1413         string_list_clear(&refs_to_prune, 0);
1414         free_remote_ref_states(&states);
1415         return result;
1416 }
1417
1418 static int prune(int argc, const char **argv)
1419 {
1420         int dry_run = 0, result = 0;
1421         struct option options[] = {
1422                 OPT__DRY_RUN(&dry_run, N_("dry run")),
1423                 OPT_END()
1424         };
1425
1426         argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1427                              0);
1428
1429         if (argc < 1)
1430                 usage_with_options(builtin_remote_prune_usage, options);
1431
1432         for (; argc; argc--, argv++)
1433                 result |= prune_remote(*argv, dry_run);
1434
1435         return result;
1436 }
1437
1438 static int get_remote_default(const char *key, const char *value, void *priv)
1439 {
1440         if (strcmp(key, "remotes.default") == 0) {
1441                 int *found = priv;
1442                 *found = 1;
1443         }
1444         return 0;
1445 }
1446
1447 static int update(int argc, const char **argv)
1448 {
1449         int i, prune = -1;
1450         struct option options[] = {
1451                 OPT_BOOL('p', "prune", &prune,
1452                          N_("prune remotes after fetching")),
1453                 OPT_END()
1454         };
1455         struct strvec fetch_argv = STRVEC_INIT;
1456         int default_defined = 0;
1457         int retval;
1458
1459         argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1460                              PARSE_OPT_KEEP_ARGV0);
1461
1462         strvec_push(&fetch_argv, "fetch");
1463
1464         if (prune != -1)
1465                 strvec_push(&fetch_argv, prune ? "--prune" : "--no-prune");
1466         if (verbose)
1467                 strvec_push(&fetch_argv, "-v");
1468         strvec_push(&fetch_argv, "--multiple");
1469         if (argc < 2)
1470                 strvec_push(&fetch_argv, "default");
1471         for (i = 1; i < argc; i++)
1472                 strvec_push(&fetch_argv, argv[i]);
1473
1474         if (strcmp(fetch_argv.v[fetch_argv.nr-1], "default") == 0) {
1475                 git_config(get_remote_default, &default_defined);
1476                 if (!default_defined) {
1477                         strvec_pop(&fetch_argv);
1478                         strvec_push(&fetch_argv, "--all");
1479                 }
1480         }
1481
1482         retval = run_command_v_opt(fetch_argv.v, RUN_GIT_CMD);
1483         strvec_clear(&fetch_argv);
1484         return retval;
1485 }
1486
1487 static int remove_all_fetch_refspecs(const char *key)
1488 {
1489         return git_config_set_multivar_gently(key, NULL, NULL, 1);
1490 }
1491
1492 static void add_branches(struct remote *remote, const char **branches,
1493                          const char *key)
1494 {
1495         const char *remotename = remote->name;
1496         int mirror = remote->mirror;
1497         struct strbuf refspec = STRBUF_INIT;
1498
1499         for (; *branches; branches++)
1500                 add_branch(key, *branches, remotename, mirror, &refspec);
1501
1502         strbuf_release(&refspec);
1503 }
1504
1505 static int set_remote_branches(const char *remotename, const char **branches,
1506                                 int add_mode)
1507 {
1508         struct strbuf key = STRBUF_INIT;
1509         struct remote *remote;
1510
1511         strbuf_addf(&key, "remote.%s.fetch", remotename);
1512
1513         remote = remote_get(remotename);
1514         if (!remote_is_configured(remote, 1))
1515                 die(_("No such remote '%s'"), remotename);
1516
1517         if (!add_mode && remove_all_fetch_refspecs(key.buf)) {
1518                 strbuf_release(&key);
1519                 return 1;
1520         }
1521         add_branches(remote, branches, key.buf);
1522
1523         strbuf_release(&key);
1524         return 0;
1525 }
1526
1527 static int set_branches(int argc, const char **argv)
1528 {
1529         int add_mode = 0;
1530         struct option options[] = {
1531                 OPT_BOOL('\0', "add", &add_mode, N_("add branch")),
1532                 OPT_END()
1533         };
1534
1535         argc = parse_options(argc, argv, NULL, options,
1536                              builtin_remote_setbranches_usage, 0);
1537         if (argc == 0) {
1538                 error(_("no remote specified"));
1539                 usage_with_options(builtin_remote_setbranches_usage, options);
1540         }
1541         argv[argc] = NULL;
1542
1543         return set_remote_branches(argv[0], argv + 1, add_mode);
1544 }
1545
1546 static int get_url(int argc, const char **argv)
1547 {
1548         int i, push_mode = 0, all_mode = 0;
1549         const char *remotename = NULL;
1550         struct remote *remote;
1551         const char **url;
1552         int url_nr;
1553         struct option options[] = {
1554                 OPT_BOOL('\0', "push", &push_mode,
1555                          N_("query push URLs rather than fetch URLs")),
1556                 OPT_BOOL('\0', "all", &all_mode,
1557                          N_("return all URLs")),
1558                 OPT_END()
1559         };
1560         argc = parse_options(argc, argv, NULL, options, builtin_remote_geturl_usage, 0);
1561
1562         if (argc != 1)
1563                 usage_with_options(builtin_remote_geturl_usage, options);
1564
1565         remotename = argv[0];
1566
1567         remote = remote_get(remotename);
1568         if (!remote_is_configured(remote, 1))
1569                 die(_("No such remote '%s'"), remotename);
1570
1571         url_nr = 0;
1572         if (push_mode) {
1573                 url = remote->pushurl;
1574                 url_nr = remote->pushurl_nr;
1575         }
1576         /* else fetch mode */
1577
1578         /* Use the fetch URL when no push URLs were found or requested. */
1579         if (!url_nr) {
1580                 url = remote->url;
1581                 url_nr = remote->url_nr;
1582         }
1583
1584         if (!url_nr)
1585                 die(_("no URLs configured for remote '%s'"), remotename);
1586
1587         if (all_mode) {
1588                 for (i = 0; i < url_nr; i++)
1589                         printf_ln("%s", url[i]);
1590         } else {
1591                 printf_ln("%s", *url);
1592         }
1593
1594         return 0;
1595 }
1596
1597 static int set_url(int argc, const char **argv)
1598 {
1599         int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1600         int matches = 0, negative_matches = 0;
1601         const char *remotename = NULL;
1602         const char *newurl = NULL;
1603         const char *oldurl = NULL;
1604         struct remote *remote;
1605         regex_t old_regex;
1606         const char **urlset;
1607         int urlset_nr;
1608         struct strbuf name_buf = STRBUF_INIT;
1609         struct option options[] = {
1610                 OPT_BOOL('\0', "push", &push_mode,
1611                          N_("manipulate push URLs")),
1612                 OPT_BOOL('\0', "add", &add_mode,
1613                          N_("add URL")),
1614                 OPT_BOOL('\0', "delete", &delete_mode,
1615                             N_("delete URLs")),
1616                 OPT_END()
1617         };
1618         argc = parse_options(argc, argv, NULL, options, builtin_remote_seturl_usage,
1619                              PARSE_OPT_KEEP_ARGV0);
1620
1621         if (add_mode && delete_mode)
1622                 die(_("--add --delete doesn't make sense"));
1623
1624         if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1625                 usage_with_options(builtin_remote_seturl_usage, options);
1626
1627         remotename = argv[1];
1628         newurl = argv[2];
1629         if (argc > 3)
1630                 oldurl = argv[3];
1631
1632         if (delete_mode)
1633                 oldurl = newurl;
1634
1635         remote = remote_get(remotename);
1636         if (!remote_is_configured(remote, 1))
1637                 die(_("No such remote '%s'"), remotename);
1638
1639         if (push_mode) {
1640                 strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1641                 urlset = remote->pushurl;
1642                 urlset_nr = remote->pushurl_nr;
1643         } else {
1644                 strbuf_addf(&name_buf, "remote.%s.url", remotename);
1645                 urlset = remote->url;
1646                 urlset_nr = remote->url_nr;
1647         }
1648
1649         /* Special cases that add new entry. */
1650         if ((!oldurl && !delete_mode) || add_mode) {
1651                 if (add_mode)
1652                         git_config_set_multivar(name_buf.buf, newurl,
1653                                                        "^$", 0);
1654                 else
1655                         git_config_set(name_buf.buf, newurl);
1656                 goto out;
1657         }
1658
1659         /* Old URL specified. Demand that one matches. */
1660         if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1661                 die(_("Invalid old URL pattern: %s"), oldurl);
1662
1663         for (i = 0; i < urlset_nr; i++)
1664                 if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1665                         matches++;
1666                 else
1667                         negative_matches++;
1668         if (!delete_mode && !matches)
1669                 die(_("No such URL found: %s"), oldurl);
1670         if (delete_mode && !negative_matches && !push_mode)
1671                 die(_("Will not delete all non-push URLs"));
1672
1673         regfree(&old_regex);
1674
1675         if (!delete_mode)
1676                 git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1677         else
1678                 git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1679 out:
1680         strbuf_release(&name_buf);
1681         return 0;
1682 }
1683
1684 int cmd_remote(int argc, const char **argv, const char *prefix)
1685 {
1686         struct option options[] = {
1687                 OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")),
1688                 OPT_END()
1689         };
1690         int result;
1691
1692         argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1693                 PARSE_OPT_STOP_AT_NON_OPTION);
1694
1695         if (argc < 1)
1696                 result = show_all();
1697         else if (!strcmp(argv[0], "add"))
1698                 result = add(argc, argv);
1699         else if (!strcmp(argv[0], "rename"))
1700                 result = mv(argc, argv);
1701         else if (!strcmp(argv[0], "rm") || !strcmp(argv[0], "remove"))
1702                 result = rm(argc, argv);
1703         else if (!strcmp(argv[0], "set-head"))
1704                 result = set_head(argc, argv);
1705         else if (!strcmp(argv[0], "set-branches"))
1706                 result = set_branches(argc, argv);
1707         else if (!strcmp(argv[0], "get-url"))
1708                 result = get_url(argc, argv);
1709         else if (!strcmp(argv[0], "set-url"))
1710                 result = set_url(argc, argv);
1711         else if (!strcmp(argv[0], "show"))
1712                 result = show(argc, argv);
1713         else if (!strcmp(argv[0], "prune"))
1714                 result = prune(argc, argv);
1715         else if (!strcmp(argv[0], "update"))
1716                 result = update(argc, argv);
1717         else {
1718                 error(_("Unknown subcommand: %s"), argv[0]);
1719                 usage_with_options(builtin_remote_usage, options);
1720         }
1721
1722         return result ? 1 : 0;
1723 }