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         refspec.force = 0;
 482         refspec.pattern = 1;
 483         refspec.src = refspec.dst = "refs/heads/*";
 484         states->heads.strdup_strings = 1;
 485         get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 486         matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 487                                     fetch_map, 1);
 488         for (ref = matches; ref; ref = ref->next)
 489                 string_list_append(&states->heads, abbrev_branch(ref->name));
 490
 491         free_refs(fetch_map);
 492         free_refs(matches);
 493
 494         return 0;
 495 }
 496
 497 struct known_remote {
 498         struct known_remote *next;
 499         struct remote *remote;
 500 };
 501
 502 struct known_remotes {
 503         struct remote *to_delete;
 504         struct known_remote *list;
 505 };
 506
 507 static int add_known_remote(struct remote *remote, void *cb_data)
 508 {
 509         struct known_remotes *all = cb_data;
 510         struct known_remote *r;
 511
 512         if (!strcmp(all->to_delete->name, remote->name))
 513                 return 0;
 514
 515         r = xmalloc(sizeof(*r));
 516         r->remote = remote;
 517         r->next = all->list;
 518         all->list = r;
 519         return 0;
 520 }
 521
 522 struct branches_for_remote {
 523         struct remote *remote;
 524         struct string_list *branches, *skipped;
 525         struct known_remotes *keep;
 526 };
 527
 528 static int add_branch_for_removal(const char *refname,
 529         const struct object_id *oid, int flags, void *cb_data)
 530 {
 531         struct branches_for_remote *branches = cb_data;
 532         struct refspec_item refspec;
 533         struct known_remote *kr;
 534
 535         memset(&refspec, 0, sizeof(refspec));
 536         refspec.dst = (char *)refname;
 537         if (remote_find_tracking(branches->remote, &refspec))
 538                 return 0;
 539
 540         /* don't delete a branch if another remote also uses it */
 541         for (kr = branches->keep->list; kr; kr = kr->next) {
 542                 memset(&refspec, 0, sizeof(refspec));
 543                 refspec.dst = (char *)refname;
 544                 if (!remote_find_tracking(kr->remote, &refspec))
 545                         return 0;
 546         }
 547
 548         /* don't delete non-remote-tracking refs */
 549         if (!starts_with(refname, "refs/remotes/")) {
 550                 /* advise user how to delete local branches */
 551                 if (starts_with(refname, "refs/heads/"))
 552                         string_list_append(branches->skipped,
 553                                            abbrev_branch(refname));
 554                 /* silently skip over other non-remote refs */
 555                 return 0;
 556         }
 557
 558         string_list_append(branches->branches, refname);
 559
 560         return 0;
 561 }
 562
 563 struct rename_info {
 564         const char *old_name;
 565         const char *new_name;
 566         struct string_list *remote_branches;
 567 };
 568
 569 static int read_remote_branches(const char *refname,
 570         const struct object_id *oid, int flags, void *cb_data)
 571 {
 572         struct rename_info *rename = cb_data;
 573         struct strbuf buf = STRBUF_INIT;
 574         struct string_list_item *item;
 575         int flag;
 576         const char *symref;
 577
 578         strbuf_addf(&buf, "refs/remotes/%s/", rename->old_name);
 579         if (starts_with(refname, buf.buf)) {
 580                 item = string_list_append(rename->remote_branches, refname);
 581                 symref = resolve_ref_unsafe(refname, RESOLVE_REF_READING,
 582                                             NULL, &flag);
 583                 if (symref && (flag & REF_ISSYMREF))
 584                         item->util = xstrdup(symref);
 585                 else
 586                         item->util = NULL;
 587         }
 588         strbuf_release(&buf);
 589
 590         return 0;
 591 }
 592
 593 static int migrate_file(struct remote *remote)
 594 {
 595         struct strbuf buf = STRBUF_INIT;
 596         int i;
 597
 598         strbuf_addf(&buf, "remote.%s.url", remote->name);
 599         for (i = 0; i < remote->url_nr; i++)
 600                 git_config_set_multivar(buf.buf, remote->url[i], "^$", 0);
 601         strbuf_reset(&buf);
 602         strbuf_addf(&buf, "remote.%s.push", remote->name);
 603         for (i = 0; i < remote->push.raw_nr; i++)
 604                 git_config_set_multivar(buf.buf, remote->push.raw[i], "^$", 0);
 605         strbuf_reset(&buf);
 606         strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 607         for (i = 0; i < remote->fetch.raw_nr; i++)
 608                 git_config_set_multivar(buf.buf, remote->fetch.raw[i], "^$", 0);
 609         if (remote->origin == REMOTE_REMOTES)
 610                 unlink_or_warn(git_path("remotes/%s", remote->name));
 611         else if (remote->origin == REMOTE_BRANCHES)
 612                 unlink_or_warn(git_path("branches/%s", remote->name));
 613         strbuf_release(&buf);
 614
 615         return 0;
 616 }
 617
 618 struct push_default_info
 619 {
 620         const char *old_name;
 621         enum config_scope scope;
 622         struct strbuf origin;
 623         int linenr;
 624 };
 625
 626 static int config_read_push_default(const char *key, const char *value,
 627         void *cb)
 628 {
 629         struct push_default_info* info = cb;
 630         if (strcmp(key, "remote.pushdefault") ||
 631             !value || strcmp(value, info->old_name))
 632                 return 0;
 633
 634         info->scope = current_config_scope();
 635         strbuf_reset(&info->origin);
 636         strbuf_addstr(&info->origin, current_config_name());
 637         info->linenr = current_config_line();
 638
 639         return 0;
 640 }
 641
 642 static void handle_push_default(const char* old_name, const char* new_name)
 643 {
 644         struct push_default_info push_default = {
 645                 old_name, CONFIG_SCOPE_UNKNOWN, STRBUF_INIT, -1 };
 646         git_config(config_read_push_default, &push_default);
 647         if (push_default.scope >= CONFIG_SCOPE_COMMAND)
 648                 ; /* pass */
 649         else if (push_default.scope >= CONFIG_SCOPE_LOCAL) {
 650                 int result = git_config_set_gently("remote.pushDefault",
 651                                                    new_name);
 652                 if (new_name && result && result != CONFIG_NOTHING_SET)
 653                         die(_("could not set '%s'"), "remote.pushDefault");
 654                 else if (!new_name && result && result != CONFIG_NOTHING_SET)
 655                         die(_("could not unset '%s'"), "remote.pushDefault");
 656         } else if (push_default.scope >= CONFIG_SCOPE_SYSTEM) {
 657                 /* warn */
 658                 warning(_("The %s configuration remote.pushDefault in:\n"
 659                           "\t%s:%d\n"
 660                           "now names the non-existent remote '%s'"),
 661                         config_scope_name(push_default.scope),
 662                         push_default.origin.buf, push_default.linenr,
 663                         old_name);
 664         }
 665 }
 666
 667
 668 static int mv(int argc, const char **argv)
 669 {
 670         struct option options[] = {
 671                 OPT_END()
 672         };
 673         struct remote *oldremote, *newremote;
 674         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT,
 675                 old_remote_context = STRBUF_INIT;
 676         struct string_list remote_branches = STRING_LIST_INIT_DUP;
 677         struct rename_info rename;
 678         int i, refspec_updated = 0;
 679
 680         if (argc != 3)
 681                 usage_with_options(builtin_remote_rename_usage, options);
 682
 683         rename.old_name = argv[1];
 684         rename.new_name = argv[2];
 685         rename.remote_branches = &remote_branches;
 686
 687         oldremote = remote_get(rename.old_name);
 688         if (!remote_is_configured(oldremote, 1))
 689                 die(_("No such remote: '%s'"), rename.old_name);
 690
 691         if (!strcmp(rename.old_name, rename.new_name) && oldremote->origin != REMOTE_CONFIG)
 692                 return migrate_file(oldremote);
 693
 694         newremote = remote_get(rename.new_name);
 695         if (remote_is_configured(newremote, 1))
 696                 die(_("remote %s already exists."), rename.new_name);
 697
 698         strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new_name);
 699         if (!valid_fetch_refspec(buf.buf))
 700                 die(_("'%s' is not a valid remote name"), rename.new_name);
 701
 702         strbuf_reset(&buf);
 703         strbuf_addf(&buf, "remote.%s", rename.old_name);
 704         strbuf_addf(&buf2, "remote.%s", rename.new_name);
 705         if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 706                 return error(_("Could not rename config section '%s' to '%s'"),
 707                                 buf.buf, buf2.buf);
 708
 709         strbuf_reset(&buf);
 710         strbuf_addf(&buf, "remote.%s.fetch", rename.new_name);
 711         git_config_set_multivar(buf.buf, NULL, NULL, 1);
 712         strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old_name);
 713         for (i = 0; i < oldremote->fetch.raw_nr; i++) {
 714                 char *ptr;
 715
 716                 strbuf_reset(&buf2);
 717                 strbuf_addstr(&buf2, oldremote->fetch.raw[i]);
 718                 ptr = strstr(buf2.buf, old_remote_context.buf);
 719                 if (ptr) {
 720                         refspec_updated = 1;
 721                         strbuf_splice(&buf2,
 722                                       ptr-buf2.buf + strlen(":refs/remotes/"),
 723                                       strlen(rename.old_name), rename.new_name,
 724                                       strlen(rename.new_name));
 725                 } else
 726                         warning(_("Not updating non-default fetch refspec\n"
 727                                   "\t%s\n"
 728                                   "\tPlease update the configuration manually if necessary."),
 729                                 buf2.buf);
 730
 731                 git_config_set_multivar(buf.buf, buf2.buf, "^$", 0);
 732         }
 733
 734         read_branches();
 735         for (i = 0; i < branch_list.nr; i++) {
 736                 struct string_list_item *item = branch_list.items + i;
 737                 struct branch_info *info = item->util;
 738                 if (info->remote_name && !strcmp(info->remote_name, rename.old_name)) {
 739                         strbuf_reset(&buf);
 740                         strbuf_addf(&buf, "branch.%s.remote", item->string);
 741                         git_config_set(buf.buf, rename.new_name);
 742                 }
 743                 if (info->push_remote_name && !strcmp(info->push_remote_name, rename.old_name)) {
 744                         strbuf_reset(&buf);
 745                         strbuf_addf(&buf, "branch.%s.pushremote", item->string);
 746                         git_config_set(buf.buf, rename.new_name);
 747                 }
 748         }
 749
 750         if (!refspec_updated)
 751                 return 0;
 752
 753         /*
 754          * First remove symrefs, then rename the rest, finally create
 755          * the new symrefs.
 756          */
 757         for_each_ref(read_remote_branches, &rename);
 758         for (i = 0; i < remote_branches.nr; i++) {
 759                 struct string_list_item *item = remote_branches.items + i;
 760                 int flag = 0;
 761
 762                 read_ref_full(item->string, RESOLVE_REF_READING, NULL, &flag);
 763                 if (!(flag & REF_ISSYMREF))
 764                         continue;
 765                 if (delete_ref(NULL, item->string, NULL, REF_NO_DEREF))
 766                         die(_("deleting '%s' failed"), item->string);
 767         }
 768         for (i = 0; i < remote_branches.nr; i++) {
 769                 struct string_list_item *item = remote_branches.items + i;
 770
 771                 if (item->util)
 772                         continue;
 773                 strbuf_reset(&buf);
 774                 strbuf_addstr(&buf, item->string);
 775                 strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old_name),
 776                                 rename.new_name, strlen(rename.new_name));
 777                 strbuf_reset(&buf2);
 778                 strbuf_addf(&buf2, "remote: renamed %s to %s",
 779                                 item->string, buf.buf);
 780                 if (rename_ref(item->string, buf.buf, buf2.buf))
 781                         die(_("renaming '%s' failed"), item->string);
 782         }
 783         for (i = 0; i < remote_branches.nr; i++) {
 784                 struct string_list_item *item = remote_branches.items + i;
 785
 786                 if (!item->util)
 787                         continue;
 788                 strbuf_reset(&buf);
 789                 strbuf_addstr(&buf, item->string);
 790                 strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old_name),
 791                                 rename.new_name, strlen(rename.new_name));
 792                 strbuf_reset(&buf2);
 793                 strbuf_addstr(&buf2, item->util);
 794                 strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old_name),
 795                                 rename.new_name, strlen(rename.new_name));
 796                 strbuf_reset(&buf3);
 797                 strbuf_addf(&buf3, "remote: renamed %s to %s",
 798                                 item->string, buf.buf);
 799                 if (create_symref(buf.buf, buf2.buf, buf3.buf))
 800                         die(_("creating '%s' failed"), buf.buf);
 801         }
 802         string_list_clear(&remote_branches, 1);
 803
 804         handle_push_default(rename.old_name, rename.new_name);
 805
 806         return 0;
 807 }
 808
 809 static int rm(int argc, const char **argv)
 810 {
 811         struct option options[] = {
 812                 OPT_END()
 813         };
 814         struct remote *remote;
 815         struct strbuf buf = STRBUF_INIT;
 816         struct known_remotes known_remotes = { NULL, NULL };
 817         struct string_list branches = STRING_LIST_INIT_DUP;
 818         struct string_list skipped = STRING_LIST_INIT_DUP;
 819         struct branches_for_remote cb_data;
 820         int i, result;
 821
 822         memset(&cb_data, 0, sizeof(cb_data));
 823         cb_data.branches = &branches;
 824         cb_data.skipped = &skipped;
 825         cb_data.keep = &known_remotes;
 826
 827         if (argc != 2)
 828                 usage_with_options(builtin_remote_rm_usage, options);
 829
 830         remote = remote_get(argv[1]);
 831         if (!remote_is_configured(remote, 1))
 832                 die(_("No such remote: '%s'"), argv[1]);
 833
 834         known_remotes.to_delete = remote;
 835         for_each_remote(add_known_remote, &known_remotes);
 836
 837         read_branches();
 838         for (i = 0; i < branch_list.nr; i++) {
 839                 struct string_list_item *item = branch_list.items + i;
 840                 struct branch_info *info = item->util;
 841                 if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 842                         const char *keys[] = { "remote", "merge", NULL }, **k;
 843                         for (k = keys; *k; k++) {
 844                                 strbuf_reset(&buf);
 845                                 strbuf_addf(&buf, "branch.%s.%s",
 846                                                 item->string, *k);
 847                                 result = git_config_set_gently(buf.buf, NULL);
 848                                 if (result && result != CONFIG_NOTHING_SET)
 849                                         die(_("could not unset '%s'"), buf.buf);
 850                         }
 851                 }
 852                 if (info->push_remote_name && !strcmp(info->push_remote_name, remote->name)) {
 853                         strbuf_reset(&buf);
 854                         strbuf_addf(&buf, "branch.%s.pushremote", item->string);
 855                         result = git_config_set_gently(buf.buf, NULL);
 856                         if (result && result != CONFIG_NOTHING_SET)
 857                                 die(_("could not unset '%s'"), buf.buf);
 858                 }
 859         }
 860
 861         /*
 862          * We cannot just pass a function to for_each_ref() which deletes
 863          * the branches one by one, since for_each_ref() relies on cached
 864          * refs, which are invalidated when deleting a branch.
 865          */
 866         cb_data.remote = remote;
 867         result = for_each_ref(add_branch_for_removal, &cb_data);
 868         strbuf_release(&buf);
 869
 870         if (!result)
 871                 result = delete_refs("remote: remove", &branches, REF_NO_DEREF);
 872         string_list_clear(&branches, 0);
 873
 874         if (skipped.nr) {
 875                 fprintf_ln(stderr,
 876                            Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 877                               "to delete it, use:",
 878                               "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 879                               "to delete them, use:",
 880                               skipped.nr));
 881                 for (i = 0; i < skipped.nr; i++)
 882                         fprintf(stderr, "  git branch -d %s\n",
 883                                 skipped.items[i].string);
 884         }
 885         string_list_clear(&skipped, 0);
 886
 887         if (!result) {
 888                 strbuf_addf(&buf, "remote.%s", remote->name);
 889                 if (git_config_rename_section(buf.buf, NULL) < 1)
 890                         return error(_("Could not remove config section '%s'"), buf.buf);
 891
 892                 handle_push_default(remote->name, NULL);
 893         }
 894
 895         return result;
 896 }
 897
 898 static void clear_push_info(void *util, const char *string)
 899 {
 900         struct push_info *info = util;
 901         free(info->dest);
 902         free(info);
 903 }
 904
 905 static void free_remote_ref_states(struct ref_states *states)
 906 {
 907         string_list_clear(&states->new_refs, 0);
 908         string_list_clear(&states->stale, 1);
 909         string_list_clear(&states->tracked, 0);
 910         string_list_clear(&states->heads, 0);
 911         string_list_clear_func(&states->push, clear_push_info);
 912 }
 913
 914 static int append_ref_to_tracked_list(const char *refname,
 915         const struct object_id *oid, int flags, void *cb_data)
 916 {
 917         struct ref_states *states = cb_data;
 918         struct refspec_item refspec;
 919
 920         if (flags & REF_ISSYMREF)
 921                 return 0;
 922
 923         memset(&refspec, 0, sizeof(refspec));
 924         refspec.dst = (char *)refname;
 925         if (!remote_find_tracking(states->remote, &refspec))
 926                 string_list_append(&states->tracked, abbrev_branch(refspec.src));
 927
 928         return 0;
 929 }
 930
 931 static int get_remote_ref_states(const char *name,
 932                                  struct ref_states *states,
 933                                  int query)
 934 {
 935         struct transport *transport;
 936         const struct ref *remote_refs;
 937
 938         states->remote = remote_get(name);
 939         if (!states->remote)
 940                 return error(_("No such remote: '%s'"), name);
 941
 942         read_branches();
 943
 944         if (query) {
 945                 transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 946                         states->remote->url[0] : NULL);
 947                 remote_refs = transport_get_remote_refs(transport, NULL);
 948                 transport_disconnect(transport);
 949
 950                 states->queried = 1;
 951                 if (query & GET_REF_STATES)
 952                         get_ref_states(remote_refs, states);
 953                 if (query & GET_HEAD_NAMES)
 954                         get_head_names(remote_refs, states);
 955                 if (query & GET_PUSH_REF_STATES)
 956                         get_push_ref_states(remote_refs, states);
 957         } else {
 958                 for_each_ref(append_ref_to_tracked_list, states);
 959                 string_list_sort(&states->tracked);
 960                 get_push_ref_states_noquery(states);
 961         }
 962
 963         return 0;
 964 }
 965
 966 struct show_info {
 967         struct string_list *list;
 968         struct ref_states *states;
 969         int width, width2;
 970         int any_rebase;
 971 };
 972
 973 static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 974 {
 975         struct show_info *info = cb_data;
 976         int n = strlen(item->string);
 977         if (n > info->width)
 978                 info->width = n;
 979         string_list_insert(info->list, item->string);
 980         return 0;
 981 }
 982
 983 static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 984 {
 985         struct show_info *info = cb_data;
 986         struct ref_states *states = info->states;
 987         const char *name = item->string;
 988
 989         if (states->queried) {
 990                 const char *fmt = "%s";
 991                 const char *arg = "";
 992                 if (string_list_has_string(&states->new_refs, name)) {
 993                         fmt = _(" new (next fetch will store in remotes/%s)");
 994                         arg = states->remote->name;
 995                 } else if (string_list_has_string(&states->tracked, name))
 996                         arg = _(" tracked");
 997                 else if (string_list_has_string(&states->stale, name))
 998                         arg = _(" stale (use 'git remote prune' to remove)");
 999                 else
1000                         arg = _(" ???");
1001                 printf("    %-*s", info->width, name);
1002                 printf(fmt, arg);
1003                 printf("\n");
1004         } else
1005                 printf("    %s\n", name);
1006
1007         return 0;
1008 }
1009
1010 static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
1011 {
1012         struct show_info *show_info = cb_data;
1013         struct ref_states *states = show_info->states;
1014         struct branch_info *branch_info = branch_item->util;
1015         struct string_list_item *item;
1016         int n;
1017
1018         if (!branch_info->merge.nr || !branch_info->remote_name ||
1019             strcmp(states->remote->name, branch_info->remote_name))
1020                 return 0;
1021         if ((n = strlen(branch_item->string)) > show_info->width)
1022                 show_info->width = n;
1023         if (branch_info->rebase >= REBASE_TRUE)
1024                 show_info->any_rebase = 1;
1025
1026         item = string_list_insert(show_info->list, branch_item->string);
1027         item->util = branch_info;
1028
1029         return 0;
1030 }
1031
1032 static int show_local_info_item(struct string_list_item *item, void *cb_data)
1033 {
1034         struct show_info *show_info = cb_data;
1035         struct branch_info *branch_info = item->util;
1036         struct string_list *merge = &branch_info->merge;
1037         int width = show_info->width + 4;
1038         int i;
1039
1040         if (branch_info->rebase >= REBASE_TRUE && branch_info->merge.nr > 1) {
1041                 error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"),
1042                         item->string);
1043                 return 0;
1044         }
1045
1046         printf("    %-*s ", show_info->width, item->string);
1047         if (branch_info->rebase >= REBASE_TRUE) {
1048                 const char *msg;
1049                 if (branch_info->rebase == REBASE_INTERACTIVE)
1050                         msg = _("rebases interactively onto remote %s");
1051                 else if (branch_info->rebase == REBASE_MERGES)
1052                         msg = _("rebases interactively (with merges) onto "
1053                                 "remote %s");
1054                 else
1055                         msg = _("rebases onto remote %s");
1056                 printf_ln(msg, merge->items[0].string);
1057                 return 0;
1058         } else if (show_info->any_rebase) {
1059                 printf_ln(_(" merges with remote %s"), merge->items[0].string);
1060                 width++;
1061         } else {
1062                 printf_ln(_("merges with remote %s"), merge->items[0].string);
1063         }
1064         for (i = 1; i < merge->nr; i++)
1065                 printf(_("%-*s    and with remote %s\n"), width, "",
1066                        merge->items[i].string);
1067
1068         return 0;
1069 }
1070
1071 static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
1072 {
1073         struct show_info *show_info = cb_data;
1074         struct push_info *push_info = push_item->util;
1075         struct string_list_item *item;
1076         int n;
1077         if ((n = strlen(push_item->string)) > show_info->width)
1078                 show_info->width = n;
1079         if ((n = strlen(push_info->dest)) > show_info->width2)
1080                 show_info->width2 = n;
1081         item = string_list_append(show_info->list, push_item->string);
1082         item->util = push_item->util;
1083         return 0;
1084 }
1085
1086 /*
1087  * Sorting comparison for a string list that has push_info
1088  * structs in its util field
1089  */
1090 static int cmp_string_with_push(const void *va, const void *vb)
1091 {
1092         const struct string_list_item *a = va;
1093         const struct string_list_item *b = vb;
1094         const struct push_info *a_push = a->util;
1095         const struct push_info *b_push = b->util;
1096         int cmp = strcmp(a->string, b->string);
1097         return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1098 }
1099
1100 static int show_push_info_item(struct string_list_item *item, void *cb_data)
1101 {
1102         struct show_info *show_info = cb_data;
1103         struct push_info *push_info = item->util;
1104         const char *src = item->string, *status = NULL;
1105
1106         switch (push_info->status) {
1107         case PUSH_STATUS_CREATE:
1108                 status = _("create");
1109                 break;
1110         case PUSH_STATUS_DELETE:
1111                 status = _("delete");
1112                 src = _("(none)");
1113                 break;
1114         case PUSH_STATUS_UPTODATE:
1115                 status = _("up to date");
1116                 break;
1117         case PUSH_STATUS_FASTFORWARD:
1118                 status = _("fast-forwardable");
1119                 break;
1120         case PUSH_STATUS_OUTOFDATE:
1121                 status = _("local out of date");
1122                 break;
1123         case PUSH_STATUS_NOTQUERIED:
1124                 break;
1125         }
1126         if (status) {
1127                 if (push_info->forced)
1128                         printf_ln(_("    %-*s forces to %-*s (%s)"), show_info->width, src,
1129                                show_info->width2, push_info->dest, status);
1130                 else
1131                         printf_ln(_("    %-*s pushes to %-*s (%s)"), show_info->width, src,
1132                                show_info->width2, push_info->dest, status);
1133         } else {
1134                 if (push_info->forced)
1135                         printf_ln(_("    %-*s forces to %s"), show_info->width, src,
1136                                push_info->dest);
1137                 else
1138                         printf_ln(_("    %-*s pushes to %s"), show_info->width, src,
1139                                push_info->dest);
1140         }
1141         return 0;
1142 }
1143
1144 static int get_one_entry(struct remote *remote, void *priv)
1145 {
1146         struct string_list *list = priv;
1147         struct strbuf url_buf = STRBUF_INIT;
1148         const char **url;
1149         int i, url_nr;
1150
1151         if (remote->url_nr > 0) {
1152                 strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1153                 string_list_append(list, remote->name)->util =
1154                                 strbuf_detach(&url_buf, NULL);
1155         } else
1156                 string_list_append(list, remote->name)->util = NULL;
1157         if (remote->pushurl_nr) {
1158                 url = remote->pushurl;
1159                 url_nr = remote->pushurl_nr;
1160         } else {
1161                 url = remote->url;
1162                 url_nr = remote->url_nr;
1163         }
1164         for (i = 0; i < url_nr; i++)
1165         {
1166                 strbuf_addf(&url_buf, "%s (push)", url[i]);
1167                 string_list_append(list, remote->name)->util =
1168                                 strbuf_detach(&url_buf, NULL);
1169         }
1170
1171         return 0;
1172 }
1173
1174 static int show_all(void)
1175 {
1176         struct string_list list = STRING_LIST_INIT_NODUP;
1177         int result;
1178
1179         list.strdup_strings = 1;
1180         result = for_each_remote(get_one_entry, &list);
1181
1182         if (!result) {
1183                 int i;
1184
1185                 string_list_sort(&list);
1186                 for (i = 0; i < list.nr; i++) {
1187                         struct string_list_item *item = list.items + i;
1188                         if (verbose)
1189                                 printf("%s\t%s\n", item->string,
1190                                         item->util ? (const char *)item->util : "");
1191                         else {
1192                                 if (i && !strcmp((item - 1)->string, item->string))
1193                                         continue;
1194                                 printf("%s\n", item->string);
1195                         }
1196                 }
1197         }
1198         string_list_clear(&list, 1);
1199         return result;
1200 }
1201
1202 static int show(int argc, const char **argv)
1203 {
1204         int no_query = 0, result = 0, query_flag = 0;
1205         struct option options[] = {
1206                 OPT_BOOL('n', NULL, &no_query, N_("do not query remotes")),
1207                 OPT_END()
1208         };
1209         struct ref_states states;
1210         struct string_list info_list = STRING_LIST_INIT_NODUP;
1211         struct show_info info;
1212
1213         argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1214                              0);
1215
1216         if (argc < 1)
1217                 return show_all();
1218
1219         if (!no_query)
1220                 query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1221
1222         memset(&states, 0, sizeof(states));
1223         memset(&info, 0, sizeof(info));
1224         info.states = &states;
1225         info.list = &info_list;
1226         for (; argc; argc--, argv++) {
1227                 int i;
1228                 const char **url;
1229                 int url_nr;
1230
1231                 get_remote_ref_states(*argv, &states, query_flag);
1232
1233                 printf_ln(_("* remote %s"), *argv);
1234                 printf_ln(_("  Fetch URL: %s"), states.remote->url_nr > 0 ?
1235                        states.remote->url[0] : _("(no URL)"));
1236                 if (states.remote->pushurl_nr) {
1237                         url = states.remote->pushurl;
1238                         url_nr = states.remote->pushurl_nr;
1239                 } else {
1240                         url = states.remote->url;
1241                         url_nr = states.remote->url_nr;
1242                 }
1243                 for (i = 0; i < url_nr; i++)
1244                         /*
1245                          * TRANSLATORS: the colon ':' should align
1246                          * with the one in " Fetch URL: %s"
1247                          * translation.
1248                          */
1249                         printf_ln(_("  Push  URL: %s"), url[i]);
1250                 if (!i)
1251                         printf_ln(_("  Push  URL: %s"), _("(no URL)"));
1252                 if (no_query)
1253                         printf_ln(_("  HEAD branch: %s"), _("(not queried)"));
1254                 else if (!states.heads.nr)
1255                         printf_ln(_("  HEAD branch: %s"), _("(unknown)"));
1256                 else if (states.heads.nr == 1)
1257                         printf_ln(_("  HEAD branch: %s"), states.heads.items[0].string);
1258                 else {
1259                         printf(_("  HEAD branch (remote HEAD is ambiguous,"
1260                                  " may be one of the following):\n"));
1261                         for (i = 0; i < states.heads.nr; i++)
1262                                 printf("    %s\n", states.heads.items[i].string);
1263                 }
1264
1265                 /* remote branch info */
1266                 info.width = 0;
1267                 for_each_string_list(&states.new_refs, add_remote_to_show_info, &info);
1268                 for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1269                 for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1270                 if (info.list->nr)
1271                         printf_ln(Q_("  Remote branch:%s",
1272                                      "  Remote branches:%s",
1273                                      info.list->nr),
1274                                   no_query ? _(" (status not queried)") : "");
1275                 for_each_string_list(info.list, show_remote_info_item, &info);
1276                 string_list_clear(info.list, 0);
1277
1278                 /* git pull info */
1279                 info.width = 0;
1280                 info.any_rebase = 0;
1281                 for_each_string_list(&branch_list, add_local_to_show_info, &info);
1282                 if (info.list->nr)
1283                         printf_ln(Q_("  Local branch configured for 'git pull':",
1284                                      "  Local branches configured for 'git pull':",
1285                                      info.list->nr));
1286                 for_each_string_list(info.list, show_local_info_item, &info);
1287                 string_list_clear(info.list, 0);
1288
1289                 /* git push info */
1290                 if (states.remote->mirror)
1291                         printf_ln(_("  Local refs will be mirrored by 'git push'"));
1292
1293                 info.width = info.width2 = 0;
1294                 for_each_string_list(&states.push, add_push_to_show_info, &info);
1295                 QSORT(info.list->items, info.list->nr, cmp_string_with_push);
1296                 if (info.list->nr)
1297                         printf_ln(Q_("  Local ref configured for 'git push'%s:",
1298                                      "  Local refs configured for 'git push'%s:",
1299                                      info.list->nr),
1300                                   no_query ? _(" (status not queried)") : "");
1301                 for_each_string_list(info.list, show_push_info_item, &info);
1302                 string_list_clear(info.list, 0);
1303
1304                 free_remote_ref_states(&states);
1305         }
1306
1307         return result;
1308 }
1309
1310 static int set_head(int argc, const char **argv)
1311 {
1312         int i, opt_a = 0, opt_d = 0, result = 0;
1313         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1314         char *head_name = NULL;
1315
1316         struct option options[] = {
1317                 OPT_BOOL('a', "auto", &opt_a,
1318                          N_("set refs/remotes/<name>/HEAD according to remote")),
1319                 OPT_BOOL('d', "delete", &opt_d,
1320                          N_("delete refs/remotes/<name>/HEAD")),
1321                 OPT_END()
1322         };
1323         argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1324                              0);
1325         if (argc)
1326                 strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1327
1328         if (!opt_a && !opt_d && argc == 2) {
1329                 head_name = xstrdup(argv[1]);
1330         } else if (opt_a && !opt_d && argc == 1) {
1331                 struct ref_states states;
1332                 memset(&states, 0, sizeof(states));
1333                 get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1334                 if (!states.heads.nr)
1335                         result |= error(_("Cannot determine remote HEAD"));
1336                 else if (states.heads.nr > 1) {
1337                         result |= error(_("Multiple remote HEAD branches. "
1338                                           "Please choose one explicitly with:"));
1339                         for (i = 0; i < states.heads.nr; i++)
1340                                 fprintf(stderr, "  git remote set-head %s %s\n",
1341                                         argv[0], states.heads.items[i].string);
1342                 } else
1343                         head_name = xstrdup(states.heads.items[0].string);
1344                 free_remote_ref_states(&states);
1345         } else if (opt_d && !opt_a && argc == 1) {
1346                 if (delete_ref(NULL, buf.buf, NULL, REF_NO_DEREF))
1347                         result |= error(_("Could not delete %s"), buf.buf);
1348         } else
1349                 usage_with_options(builtin_remote_sethead_usage, options);
1350
1351         if (head_name) {
1352                 strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1353                 /* make sure it's valid */
1354                 if (!ref_exists(buf2.buf))
1355                         result |= error(_("Not a valid ref: %s"), buf2.buf);
1356                 else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1357                         result |= error(_("Could not setup %s"), buf.buf);
1358                 if (opt_a)
1359                         printf("%s/HEAD set to %s\n", argv[0], head_name);
1360                 free(head_name);
1361         }
1362
1363         strbuf_release(&buf);
1364         strbuf_release(&buf2);
1365         return result;
1366 }
1367
1368 static int prune_remote(const char *remote, int dry_run)
1369 {
1370         int result = 0;
1371         struct ref_states states;
1372         struct string_list refs_to_prune = STRING_LIST_INIT_NODUP;
1373         struct string_list_item *item;
1374         const char *dangling_msg = dry_run
1375                 ? _(" %s will become dangling!")
1376                 : _(" %s has become dangling!");
1377
1378         memset(&states, 0, sizeof(states));
1379         get_remote_ref_states(remote, &states, GET_REF_STATES);
1380
1381         if (!states.stale.nr) {
1382                 free_remote_ref_states(&states);
1383                 return 0;
1384         }
1385
1386         printf_ln(_("Pruning %s"), remote);
1387         printf_ln(_("URL: %s"),
1388                   states.remote->url_nr
1389                   ? states.remote->url[0]
1390                   : _("(no URL)"));
1391
1392         for_each_string_list_item(item, &states.stale)
1393                 string_list_append(&refs_to_prune, item->util);
1394         string_list_sort(&refs_to_prune);
1395
1396         if (!dry_run)
1397                 result |= delete_refs("remote: prune", &refs_to_prune, 0);
1398
1399         for_each_string_list_item(item, &states.stale) {
1400                 const char *refname = item->util;
1401
1402                 if (dry_run)
1403                         printf_ln(_(" * [would prune] %s"),
1404                                abbrev_ref(refname, "refs/remotes/"));
1405                 else
1406                         printf_ln(_(" * [pruned] %s"),
1407                                abbrev_ref(refname, "refs/remotes/"));
1408         }
1409
1410         warn_dangling_symrefs(stdout, dangling_msg, &refs_to_prune);
1411
1412         string_list_clear(&refs_to_prune, 0);
1413         free_remote_ref_states(&states);
1414         return result;
1415 }
1416
1417 static int prune(int argc, const char **argv)
1418 {
1419         int dry_run = 0, result = 0;
1420         struct option options[] = {
1421                 OPT__DRY_RUN(&dry_run, N_("dry run")),
1422                 OPT_END()
1423         };
1424
1425         argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1426                              0);
1427
1428         if (argc < 1)
1429                 usage_with_options(builtin_remote_prune_usage, options);
1430
1431         for (; argc; argc--, argv++)
1432                 result |= prune_remote(*argv, dry_run);
1433
1434         return result;
1435 }
1436
1437 static int get_remote_default(const char *key, const char *value, void *priv)
1438 {
1439         if (strcmp(key, "remotes.default") == 0) {
1440                 int *found = priv;
1441                 *found = 1;
1442         }
1443         return 0;
1444 }
1445
1446 static int update(int argc, const char **argv)
1447 {
1448         int i, prune = -1;
1449         struct option options[] = {
1450                 OPT_BOOL('p', "prune", &prune,
1451                          N_("prune remotes after fetching")),
1452                 OPT_END()
1453         };
1454         struct strvec fetch_argv = STRVEC_INIT;
1455         int default_defined = 0;
1456         int retval;
1457
1458         argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1459                              PARSE_OPT_KEEP_ARGV0);
1460
1461         strvec_push(&fetch_argv, "fetch");
1462
1463         if (prune != -1)
1464                 strvec_push(&fetch_argv, prune ? "--prune" : "--no-prune");
1465         if (verbose)
1466                 strvec_push(&fetch_argv, "-v");
1467         strvec_push(&fetch_argv, "--multiple");
1468         if (argc < 2)
1469                 strvec_push(&fetch_argv, "default");
1470         for (i = 1; i < argc; i++)
1471                 strvec_push(&fetch_argv, argv[i]);
1472
1473         if (strcmp(fetch_argv.v[fetch_argv.nr-1], "default") == 0) {
1474                 git_config(get_remote_default, &default_defined);
1475                 if (!default_defined) {
1476                         strvec_pop(&fetch_argv);
1477                         strvec_push(&fetch_argv, "--all");
1478                 }
1479         }
1480
1481         retval = run_command_v_opt(fetch_argv.v, RUN_GIT_CMD);
1482         strvec_clear(&fetch_argv);
1483         return retval;
1484 }
1485
1486 static int remove_all_fetch_refspecs(const char *key)
1487 {
1488         return git_config_set_multivar_gently(key, NULL, NULL, 1);
1489 }
1490
1491 static void add_branches(struct remote *remote, const char **branches,
1492                          const char *key)
1493 {
1494         const char *remotename = remote->name;
1495         int mirror = remote->mirror;
1496         struct strbuf refspec = STRBUF_INIT;
1497
1498         for (; *branches; branches++)
1499                 add_branch(key, *branches, remotename, mirror, &refspec);
1500
1501         strbuf_release(&refspec);
1502 }
1503
1504 static int set_remote_branches(const char *remotename, const char **branches,
1505                                 int add_mode)
1506 {
1507         struct strbuf key = STRBUF_INIT;
1508         struct remote *remote;
1509
1510         strbuf_addf(&key, "remote.%s.fetch", remotename);
1511
1512         remote = remote_get(remotename);
1513         if (!remote_is_configured(remote, 1))
1514                 die(_("No such remote '%s'"), remotename);
1515
1516         if (!add_mode && remove_all_fetch_refspecs(key.buf)) {
1517                 strbuf_release(&key);
1518                 return 1;
1519         }
1520         add_branches(remote, branches, key.buf);
1521
1522         strbuf_release(&key);
1523         return 0;
1524 }
1525
1526 static int set_branches(int argc, const char **argv)
1527 {
1528         int add_mode = 0;
1529         struct option options[] = {
1530                 OPT_BOOL('\0', "add", &add_mode, N_("add branch")),
1531                 OPT_END()
1532         };
1533
1534         argc = parse_options(argc, argv, NULL, options,
1535                              builtin_remote_setbranches_usage, 0);
1536         if (argc == 0) {
1537                 error(_("no remote specified"));
1538                 usage_with_options(builtin_remote_setbranches_usage, options);
1539         }
1540         argv[argc] = NULL;
1541
1542         return set_remote_branches(argv[0], argv + 1, add_mode);
1543 }
1544
1545 static int get_url(int argc, const char **argv)
1546 {
1547         int i, push_mode = 0, all_mode = 0;
1548         const char *remotename = NULL;
1549         struct remote *remote;
1550         const char **url;
1551         int url_nr;
1552         struct option options[] = {
1553                 OPT_BOOL('\0', "push", &push_mode,
1554                          N_("query push URLs rather than fetch URLs")),
1555                 OPT_BOOL('\0', "all", &all_mode,
1556                          N_("return all URLs")),
1557                 OPT_END()
1558         };
1559         argc = parse_options(argc, argv, NULL, options, builtin_remote_geturl_usage, 0);
1560
1561         if (argc != 1)
1562                 usage_with_options(builtin_remote_geturl_usage, options);
1563
1564         remotename = argv[0];
1565
1566         remote = remote_get(remotename);
1567         if (!remote_is_configured(remote, 1))
1568                 die(_("No such remote '%s'"), remotename);
1569
1570         url_nr = 0;
1571         if (push_mode) {
1572                 url = remote->pushurl;
1573                 url_nr = remote->pushurl_nr;
1574         }
1575         /* else fetch mode */
1576
1577         /* Use the fetch URL when no push URLs were found or requested. */
1578         if (!url_nr) {
1579                 url = remote->url;
1580                 url_nr = remote->url_nr;
1581         }
1582
1583         if (!url_nr)
1584                 die(_("no URLs configured for remote '%s'"), remotename);
1585
1586         if (all_mode) {
1587                 for (i = 0; i < url_nr; i++)
1588                         printf_ln("%s", url[i]);
1589         } else {
1590                 printf_ln("%s", *url);
1591         }
1592
1593         return 0;
1594 }
1595
1596 static int set_url(int argc, const char **argv)
1597 {
1598         int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1599         int matches = 0, negative_matches = 0;
1600         const char *remotename = NULL;
1601         const char *newurl = NULL;
1602         const char *oldurl = NULL;
1603         struct remote *remote;
1604         regex_t old_regex;
1605         const char **urlset;
1606         int urlset_nr;
1607         struct strbuf name_buf = STRBUF_INIT;
1608         struct option options[] = {
1609                 OPT_BOOL('\0', "push", &push_mode,
1610                          N_("manipulate push URLs")),
1611                 OPT_BOOL('\0', "add", &add_mode,
1612                          N_("add URL")),
1613                 OPT_BOOL('\0', "delete", &delete_mode,
1614                             N_("delete URLs")),
1615                 OPT_END()
1616         };
1617         argc = parse_options(argc, argv, NULL, options, builtin_remote_seturl_usage,
1618                              PARSE_OPT_KEEP_ARGV0);
1619
1620         if (add_mode && delete_mode)
1621                 die(_("--add --delete doesn't make sense"));
1622
1623         if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1624                 usage_with_options(builtin_remote_seturl_usage, options);
1625
1626         remotename = argv[1];
1627         newurl = argv[2];
1628         if (argc > 3)
1629                 oldurl = argv[3];
1630
1631         if (delete_mode)
1632                 oldurl = newurl;
1633
1634         remote = remote_get(remotename);
1635         if (!remote_is_configured(remote, 1))
1636                 die(_("No such remote '%s'"), remotename);
1637
1638         if (push_mode) {
1639                 strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1640                 urlset = remote->pushurl;
1641                 urlset_nr = remote->pushurl_nr;
1642         } else {
1643                 strbuf_addf(&name_buf, "remote.%s.url", remotename);
1644                 urlset = remote->url;
1645                 urlset_nr = remote->url_nr;
1646         }
1647
1648         /* Special cases that add new entry. */
1649         if ((!oldurl && !delete_mode) || add_mode) {
1650                 if (add_mode)
1651                         git_config_set_multivar(name_buf.buf, newurl,
1652                                                        "^$", 0);
1653                 else
1654                         git_config_set(name_buf.buf, newurl);
1655                 goto out;
1656         }
1657
1658         /* Old URL specified. Demand that one matches. */
1659         if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1660                 die(_("Invalid old URL pattern: %s"), oldurl);
1661
1662         for (i = 0; i < urlset_nr; i++)
1663                 if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1664                         matches++;
1665                 else
1666                         negative_matches++;
1667         if (!delete_mode && !matches)
1668                 die(_("No such URL found: %s"), oldurl);
1669         if (delete_mode && !negative_matches && !push_mode)
1670                 die(_("Will not delete all non-push URLs"));
1671
1672         regfree(&old_regex);
1673
1674         if (!delete_mode)
1675                 git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1676         else
1677                 git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1678 out:
1679         strbuf_release(&name_buf);
1680         return 0;
1681 }
1682
1683 int cmd_remote(int argc, const char **argv, const char *prefix)
1684 {
1685         struct option options[] = {
1686                 OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")),
1687                 OPT_END()
1688         };
1689         int result;
1690
1691         argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1692                 PARSE_OPT_STOP_AT_NON_OPTION);
1693
1694         if (argc < 1)
1695                 result = show_all();
1696         else if (!strcmp(argv[0], "add"))
1697                 result = add(argc, argv);
1698         else if (!strcmp(argv[0], "rename"))
1699                 result = mv(argc, argv);
1700         else if (!strcmp(argv[0], "rm") || !strcmp(argv[0], "remove"))
1701                 result = rm(argc, argv);
1702         else if (!strcmp(argv[0], "set-head"))
1703                 result = set_head(argc, argv);
1704         else if (!strcmp(argv[0], "set-branches"))
1705                 result = set_branches(argc, argv);
1706         else if (!strcmp(argv[0], "get-url"))
1707                 result = get_url(argc, argv);
1708         else if (!strcmp(argv[0], "set-url"))
1709                 result = set_url(argc, argv);
1710         else if (!strcmp(argv[0], "show"))
1711                 result = show(argc, argv);
1712         else if (!strcmp(argv[0], "prune"))
1713                 result = prune(argc, argv);
1714         else if (!strcmp(argv[0], "update"))
1715                 result = update(argc, argv);
1716         else {
1717                 error(_("Unknown subcommand: %s"), argv[0]);
1718                 usage_with_options(builtin_remote_usage, options);
1719         }
1720
1721         return result ? 1 : 0;
1722 }