builtin/remote.c

   1 #define USE_THE_REPOSITORY_VARIABLE
   2 #include "builtin.h"
   3 #include "config.h"
   4 #include "gettext.h"
   5 #include "parse-options.h"
   6 #include "path.h"
   7 #include "transport.h"
   8 #include "remote.h"
   9 #include "string-list.h"
  10 #include "strbuf.h"
  11 #include "run-command.h"
  12 #include "rebase.h"
  13 #include "refs.h"
  14 #include "refspec.h"
  15 #include "object-store-ll.h"
  16 #include "strvec.h"
  17 #include "commit-reach.h"
  18 #include "progress.h"
  19
  20 static const char * const builtin_remote_usage[] = {
  21         "git remote [-v | --verbose]",
  22         N_("git remote add [-t <branch>] [-m <master>] [-f] [--tags | --no-tags] [--mirror=<fetch|push>] <name> <url>"),
  23         N_("git remote rename [--[no-]progress] <old> <new>"),
  24         N_("git remote remove <name>"),
  25         N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
  26         N_("git remote [-v | --verbose] show [-n] <name>"),
  27         N_("git remote prune [-n | --dry-run] <name>"),
  28         N_("git remote [-v | --verbose] update [-p | --prune] [(<group> | <remote>)...]"),
  29         N_("git remote set-branches [--add] <name> <branch>..."),
  30         N_("git remote get-url [--push] [--all] <name>"),
  31         N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
  32         N_("git remote set-url --add <name> <newurl>"),
  33         N_("git remote set-url --delete <name> <url>"),
  34         NULL
  35 };
  36
  37 static const char * const builtin_remote_add_usage[] = {
  38         N_("git remote add [<options>] <name> <url>"),
  39         NULL
  40 };
  41
  42 static const char * const builtin_remote_rename_usage[] = {
  43         N_("git remote rename [--[no-]progress] <old> <new>"),
  44         NULL
  45 };
  46
  47 static const char * const builtin_remote_rm_usage[] = {
  48         N_("git remote remove <name>"),
  49         NULL
  50 };
  51
  52 static const char * const builtin_remote_sethead_usage[] = {
  53         N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
  54         NULL
  55 };
  56
  57 static const char * const builtin_remote_setbranches_usage[] = {
  58         N_("git remote set-branches <name> <branch>..."),
  59         N_("git remote set-branches --add <name> <branch>..."),
  60         NULL
  61 };
  62
  63 static const char * const builtin_remote_show_usage[] = {
  64         N_("git remote show [<options>] <name>"),
  65         NULL
  66 };
  67
  68 static const char * const builtin_remote_prune_usage[] = {
  69         N_("git remote prune [<options>] <name>"),
  70         NULL
  71 };
  72
  73 static const char * const builtin_remote_update_usage[] = {
  74         N_("git remote update [<options>] [<group> | <remote>]..."),
  75         NULL
  76 };
  77
  78 static const char * const builtin_remote_geturl_usage[] = {
  79         N_("git remote get-url [--push] [--all] <name>"),
  80         NULL
  81 };
  82
  83 static const char * const builtin_remote_seturl_usage[] = {
  84         N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
  85         N_("git remote set-url --add <name> <newurl>"),
  86         N_("git remote set-url --delete <name> <url>"),
  87         NULL
  88 };
  89
  90 #define GET_REF_STATES (1<<0)
  91 #define GET_HEAD_NAMES (1<<1)
  92 #define GET_PUSH_REF_STATES (1<<2)
  93
  94 static int verbose;
  95
  96 static int fetch_remote(const char *name)
  97 {
  98         struct child_process cmd = CHILD_PROCESS_INIT;
  99
 100         strvec_push(&cmd.args, "fetch");
 101         if (verbose)
 102                 strvec_push(&cmd.args, "-v");
 103         strvec_push(&cmd.args, name);
 104         cmd.git_cmd = 1;
 105         printf_ln(_("Updating %s"), name);
 106         if (run_command(&cmd))
 107                 return error(_("Could not fetch %s"), name);
 108         return 0;
 109 }
 110
 111 enum {
 112         TAGS_UNSET = 0,
 113         TAGS_DEFAULT = 1,
 114         TAGS_SET = 2
 115 };
 116
 117 #define MIRROR_NONE 0
 118 #define MIRROR_FETCH 1
 119 #define MIRROR_PUSH 2
 120 #define MIRROR_BOTH (MIRROR_FETCH|MIRROR_PUSH)
 121
 122 static void add_branch(const char *key, const char *branchname,
 123                        const char *remotename, int mirror, struct strbuf *tmp)
 124 {
 125         strbuf_reset(tmp);
 126         strbuf_addch(tmp, '+');
 127         if (mirror)
 128                 strbuf_addf(tmp, "refs/%s:refs/%s",
 129                                 branchname, branchname);
 130         else
 131                 strbuf_addf(tmp, "refs/heads/%s:refs/remotes/%s/%s",
 132                                 branchname, remotename, branchname);
 133         git_config_set_multivar(key, tmp->buf, "^$", 0);
 134 }
 135
 136 static const char mirror_advice[] =
 137 N_("--mirror is dangerous and deprecated; please\n"
 138    "\t use --mirror=fetch or --mirror=push instead");
 139
 140 static int parse_mirror_opt(const struct option *opt, const char *arg, int not)
 141 {
 142         unsigned *mirror = opt->value;
 143         if (not)
 144                 *mirror = MIRROR_NONE;
 145         else if (!arg) {
 146                 warning("%s", _(mirror_advice));
 147                 *mirror = MIRROR_BOTH;
 148         }
 149         else if (!strcmp(arg, "fetch"))
 150                 *mirror = MIRROR_FETCH;
 151         else if (!strcmp(arg, "push"))
 152                 *mirror = MIRROR_PUSH;
 153         else
 154                 return error(_("unknown --mirror argument: %s"), arg);
 155         return 0;
 156 }
 157
 158 static int add(int argc, const char **argv, const char *prefix)
 159 {
 160         int fetch = 0, fetch_tags = TAGS_DEFAULT;
 161         unsigned mirror = MIRROR_NONE;
 162         struct string_list track = STRING_LIST_INIT_NODUP;
 163         const char *master = NULL;
 164         struct remote *remote;
 165         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
 166         const char *name, *url;
 167         int i;
 168         int result = 0;
 169
 170         struct option options[] = {
 171                 OPT_BOOL('f', "fetch", &fetch, N_("fetch the remote branches")),
 172                 OPT_SET_INT(0, "tags", &fetch_tags,
 173                             N_("import all tags and associated objects when fetching\n"
 174                                "or do not fetch any tag at all (--no-tags)"),
 175                             TAGS_SET),
 176                 OPT_STRING_LIST('t', "track", &track, N_("branch"),
 177                                 N_("branch(es) to track")),
 178                 OPT_STRING('m', "master", &master, N_("branch"), N_("master branch")),
 179                 OPT_CALLBACK_F(0, "mirror", &mirror, "(push|fetch)",
 180                         N_("set up remote as a mirror to push to or fetch from"),
 181                         PARSE_OPT_OPTARG | PARSE_OPT_COMP_ARG, parse_mirror_opt),
 182                 OPT_END()
 183         };
 184
 185         argc = parse_options(argc, argv, prefix, options,
 186                              builtin_remote_add_usage, 0);
 187
 188         if (argc != 2)
 189                 usage_with_options(builtin_remote_add_usage, options);
 190
 191         if (mirror && master)
 192                 die(_("specifying a master branch makes no sense with --mirror"));
 193         if (mirror && !(mirror & MIRROR_FETCH) && track.nr)
 194                 die(_("specifying branches to track makes sense only with fetch mirrors"));
 195
 196         name = argv[0];
 197         url = argv[1];
 198
 199         remote = remote_get(name);
 200         if (remote_is_configured(remote, 1)) {
 201                 error(_("remote %s already exists."), name);
 202                 exit(3);
 203         }
 204
 205         if (!valid_remote_name(name))
 206                 die(_("'%s' is not a valid remote name"), name);
 207
 208         strbuf_addf(&buf, "remote.%s.url", name);
 209         git_config_set(buf.buf, url);
 210
 211         if (!mirror || mirror & MIRROR_FETCH) {
 212                 strbuf_reset(&buf);
 213                 strbuf_addf(&buf, "remote.%s.fetch", name);
 214                 if (track.nr == 0)
 215                         string_list_append(&track, "*");
 216                 for (i = 0; i < track.nr; i++) {
 217                         add_branch(buf.buf, track.items[i].string,
 218                                    name, mirror, &buf2);
 219                 }
 220         }
 221
 222         if (mirror & MIRROR_PUSH) {
 223                 strbuf_reset(&buf);
 224                 strbuf_addf(&buf, "remote.%s.mirror", name);
 225                 git_config_set(buf.buf, "true");
 226         }
 227
 228         if (fetch_tags != TAGS_DEFAULT) {
 229                 strbuf_reset(&buf);
 230                 strbuf_addf(&buf, "remote.%s.tagOpt", name);
 231                 git_config_set(buf.buf,
 232                                fetch_tags == TAGS_SET ? "--tags" : "--no-tags");
 233         }
 234
 235         if (fetch && fetch_remote(name)) {
 236                 result = 1;
 237                 goto out;
 238         }
 239
 240         if (master) {
 241                 strbuf_reset(&buf);
 242                 strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
 243
 244                 strbuf_reset(&buf2);
 245                 strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
 246
 247                 if (refs_update_symref(get_main_ref_store(the_repository), buf.buf, buf2.buf, "remote add"))
 248                         result = error(_("Could not setup master '%s'"), master);
 249         }
 250
 251 out:
 252         strbuf_release(&buf);
 253         strbuf_release(&buf2);
 254         string_list_clear(&track, 0);
 255
 256         return result;
 257 }
 258
 259 struct branch_info {
 260         char *remote_name;
 261         struct string_list merge;
 262         enum rebase_type rebase;
 263         char *push_remote_name;
 264 };
 265
 266 static struct string_list branch_list = STRING_LIST_INIT_DUP;
 267
 268 static const char *abbrev_ref(const char *name, const char *prefix)
 269 {
 270         skip_prefix(name, prefix, &name);
 271         return name;
 272 }
 273 #define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 274
 275 static int config_read_branches(const char *key, const char *value,
 276                                 const struct config_context *ctx UNUSED,
 277                                 void *data UNUSED)
 278 {
 279         const char *orig_key = key;
 280         char *name;
 281         struct string_list_item *item;
 282         struct branch_info *info;
 283         enum { REMOTE, MERGE, REBASE, PUSH_REMOTE } type;
 284         size_t key_len;
 285
 286         if (!starts_with(key, "branch."))
 287                 return 0;
 288
 289         key += strlen("branch.");
 290         if (strip_suffix(key, ".remote", &key_len))
 291                 type = REMOTE;
 292         else if (strip_suffix(key, ".merge", &key_len))
 293                 type = MERGE;
 294         else if (strip_suffix(key, ".rebase", &key_len))
 295                 type = REBASE;
 296         else if (strip_suffix(key, ".pushremote", &key_len))
 297                 type = PUSH_REMOTE;
 298         else
 299                 return 0;
 300
 301         name = xmemdupz(key, key_len);
 302         item = string_list_insert(&branch_list, name);
 303
 304         if (!item->util)
 305                 item->util = xcalloc(1, sizeof(struct branch_info));
 306         info = item->util;
 307         switch (type) {
 308         case REMOTE:
 309                 if (info->remote_name)
 310                         warning(_("more than one %s"), orig_key);
 311                 info->remote_name = xstrdup(value);
 312                 break;
 313         case MERGE: {
 314                 char *space = strchr(value, ' ');
 315                 value = abbrev_branch(value);
 316                 while (space) {
 317                         char *merge;
 318                         merge = xstrndup(value, space - value);
 319                         string_list_append(&info->merge, merge);
 320                         value = abbrev_branch(space + 1);
 321                         space = strchr(value, ' ');
 322                 }
 323                 string_list_append(&info->merge, xstrdup(value));
 324                 break;
 325         }
 326         case REBASE:
 327                 /*
 328                  * Consider invalid values as false and check the
 329                  * truth value with >= REBASE_TRUE.
 330                  */
 331                 info->rebase = rebase_parse_value(value);
 332                 if (info->rebase == REBASE_INVALID)
 333                         warning(_("unhandled branch.%s.rebase=%s; assuming "
 334                                   "'true'"), name, value);
 335                 break;
 336         case PUSH_REMOTE:
 337                 if (info->push_remote_name)
 338                         warning(_("more than one %s"), orig_key);
 339                 info->push_remote_name = xstrdup(value);
 340                 break;
 341         default:
 342                 BUG("unexpected type=%d", type);
 343         }
 344
 345         free(name);
 346         return 0;
 347 }
 348
 349 static void read_branches(void)
 350 {
 351         if (branch_list.nr)
 352                 return;
 353         git_config(config_read_branches, NULL);
 354 }
 355
 356 struct ref_states {
 357         struct remote *remote;
 358         struct string_list new_refs, skipped, stale, tracked, heads, push;
 359         int queried;
 360 };
 361
 362 #define REF_STATES_INIT { \
 363         .new_refs = STRING_LIST_INIT_DUP, \
 364         .skipped = STRING_LIST_INIT_DUP, \
 365         .stale = STRING_LIST_INIT_DUP, \
 366         .tracked = STRING_LIST_INIT_DUP, \
 367         .heads = STRING_LIST_INIT_DUP, \
 368         .push = STRING_LIST_INIT_DUP, \
 369 }
 370
 371 static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 372 {
 373         struct ref *fetch_map = NULL, **tail = &fetch_map;
 374         struct ref *ref, *stale_refs;
 375         int i;
 376
 377         for (i = 0; i < states->remote->fetch.nr; i++)
 378                 if (get_fetch_map(remote_refs, &states->remote->fetch.items[i], &tail, 1))
 379                         die(_("Could not get fetch map for refspec %s"),
 380                                 states->remote->fetch.raw[i]);
 381
 382         for (ref = fetch_map; ref; ref = ref->next) {
 383                 if (omit_name_by_refspec(ref->name, &states->remote->fetch))
 384                         string_list_append(&states->skipped, abbrev_branch(ref->name));
 385                 else if (!ref->peer_ref || !refs_ref_exists(get_main_ref_store(the_repository), ref->peer_ref->name))
 386                         string_list_append(&states->new_refs, abbrev_branch(ref->name));
 387                 else
 388                         string_list_append(&states->tracked, abbrev_branch(ref->name));
 389         }
 390         stale_refs = get_stale_heads(&states->remote->fetch, fetch_map);
 391         for (ref = stale_refs; ref; ref = ref->next) {
 392                 struct string_list_item *item =
 393                         string_list_append(&states->stale, abbrev_branch(ref->name));
 394                 item->util = xstrdup(ref->name);
 395         }
 396         free_refs(stale_refs);
 397         free_refs(fetch_map);
 398
 399         string_list_sort(&states->new_refs);
 400         string_list_sort(&states->skipped);
 401         string_list_sort(&states->tracked);
 402         string_list_sort(&states->stale);
 403
 404         return 0;
 405 }
 406
 407 struct push_info {
 408         char *dest;
 409         int forced;
 410         enum {
 411                 PUSH_STATUS_CREATE = 0,
 412                 PUSH_STATUS_DELETE,
 413                 PUSH_STATUS_UPTODATE,
 414                 PUSH_STATUS_FASTFORWARD,
 415                 PUSH_STATUS_OUTOFDATE,
 416                 PUSH_STATUS_NOTQUERIED
 417         } status;
 418 };
 419
 420 static int get_push_ref_states(const struct ref *remote_refs,
 421         struct ref_states *states)
 422 {
 423         struct remote *remote = states->remote;
 424         struct ref *ref, *local_refs, *push_map;
 425         if (remote->mirror)
 426                 return 0;
 427
 428         local_refs = get_local_heads();
 429         push_map = copy_ref_list(remote_refs);
 430
 431         match_push_refs(local_refs, &push_map, &remote->push, MATCH_REFS_NONE);
 432
 433         for (ref = push_map; ref; ref = ref->next) {
 434                 struct string_list_item *item;
 435                 struct push_info *info;
 436
 437                 if (!ref->peer_ref)
 438                         continue;
 439                 oidcpy(&ref->new_oid, &ref->peer_ref->new_oid);
 440
 441                 item = string_list_append(&states->push,
 442                                           abbrev_branch(ref->peer_ref->name));
 443                 item->util = xcalloc(1, sizeof(struct push_info));
 444                 info = item->util;
 445                 info->forced = ref->force;
 446                 info->dest = xstrdup(abbrev_branch(ref->name));
 447
 448                 if (is_null_oid(&ref->new_oid)) {
 449                         info->status = PUSH_STATUS_DELETE;
 450                 } else if (oideq(&ref->old_oid, &ref->new_oid))
 451                         info->status = PUSH_STATUS_UPTODATE;
 452                 else if (is_null_oid(&ref->old_oid))
 453                         info->status = PUSH_STATUS_CREATE;
 454                 else if (repo_has_object_file(the_repository, &ref->old_oid) &&
 455                          ref_newer(&ref->new_oid, &ref->old_oid))
 456                         info->status = PUSH_STATUS_FASTFORWARD;
 457                 else
 458                         info->status = PUSH_STATUS_OUTOFDATE;
 459         }
 460         free_refs(local_refs);
 461         free_refs(push_map);
 462         return 0;
 463 }
 464
 465 static int get_push_ref_states_noquery(struct ref_states *states)
 466 {
 467         int i;
 468         struct remote *remote = states->remote;
 469         struct string_list_item *item;
 470         struct push_info *info;
 471
 472         if (remote->mirror)
 473                 return 0;
 474
 475         if (!remote->push.nr) {
 476                 item = string_list_append(&states->push, _("(matching)"));
 477                 info = item->util = xcalloc(1, sizeof(struct push_info));
 478                 info->status = PUSH_STATUS_NOTQUERIED;
 479                 info->dest = xstrdup(item->string);
 480         }
 481         for (i = 0; i < remote->push.nr; i++) {
 482                 const struct refspec_item *spec = &remote->push.items[i];
 483                 if (spec->matching)
 484                         item = string_list_append(&states->push, _("(matching)"));
 485                 else if (strlen(spec->src))
 486                         item = string_list_append(&states->push, spec->src);
 487                 else
 488                         item = string_list_append(&states->push, _("(delete)"));
 489
 490                 info = item->util = xcalloc(1, sizeof(struct push_info));
 491                 info->forced = spec->force;
 492                 info->status = PUSH_STATUS_NOTQUERIED;
 493                 info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 494         }
 495         return 0;
 496 }
 497
 498 static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 499 {
 500         struct ref *ref, *matches;
 501         struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 502         struct refspec_item refspec = {
 503                 .force = 0,
 504                 .pattern = 1,
 505                 .src = (char *) "refs/heads/*",
 506                 .dst = (char *) "refs/heads/*",
 507         };
 508
 509         get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 510         matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 511                                     fetch_map, 1);
 512         for (ref = matches; ref; ref = ref->next)
 513                 string_list_append(&states->heads, abbrev_branch(ref->name));
 514
 515         free_refs(fetch_map);
 516         free_refs(matches);
 517         return 0;
 518 }
 519
 520 struct known_remote {
 521         struct known_remote *next;
 522         struct remote *remote;
 523 };
 524
 525 struct known_remotes {
 526         struct remote *to_delete;
 527         struct known_remote *list;
 528 };
 529
 530 static int add_known_remote(struct remote *remote, void *cb_data)
 531 {
 532         struct known_remotes *all = cb_data;
 533         struct known_remote *r;
 534
 535         if (!strcmp(all->to_delete->name, remote->name))
 536                 return 0;
 537
 538         r = xmalloc(sizeof(*r));
 539         r->remote = remote;
 540         r->next = all->list;
 541         all->list = r;
 542         return 0;
 543 }
 544
 545 struct branches_for_remote {
 546         struct remote *remote;
 547         struct string_list *branches, *skipped;
 548         struct known_remotes *keep;
 549 };
 550
 551 static int add_branch_for_removal(const char *refname,
 552                                   const char *referent UNUSED,
 553                                   const struct object_id *oid UNUSED,
 554                                   int flags UNUSED, void *cb_data)
 555 {
 556         struct branches_for_remote *branches = cb_data;
 557         struct refspec_item refspec;
 558         struct known_remote *kr;
 559
 560         memset(&refspec, 0, sizeof(refspec));
 561         refspec.dst = (char *)refname;
 562         if (remote_find_tracking(branches->remote, &refspec))
 563                 return 0;
 564         free(refspec.src);
 565
 566         /* don't delete a branch if another remote also uses it */
 567         for (kr = branches->keep->list; kr; kr = kr->next) {
 568                 memset(&refspec, 0, sizeof(refspec));
 569                 refspec.dst = (char *)refname;
 570                 if (!remote_find_tracking(kr->remote, &refspec)) {
 571                         free(refspec.src);
 572                         return 0;
 573                 }
 574         }
 575
 576         /* don't delete non-remote-tracking refs */
 577         if (!starts_with(refname, "refs/remotes/")) {
 578                 /* advise user how to delete local branches */
 579                 if (starts_with(refname, "refs/heads/"))
 580                         string_list_append(branches->skipped,
 581                                            abbrev_branch(refname));
 582                 /* silently skip over other non-remote refs */
 583                 return 0;
 584         }
 585
 586         string_list_append(branches->branches, refname);
 587
 588         return 0;
 589 }
 590
 591 struct rename_info {
 592         const char *old_name;
 593         const char *new_name;
 594         struct string_list *remote_branches;
 595         uint32_t symrefs_nr;
 596 };
 597
 598 static int read_remote_branches(const char *refname, const char *referent UNUSED,
 599                                 const struct object_id *oid UNUSED,
 600                                 int flags UNUSED, void *cb_data)
 601 {
 602         struct rename_info *rename = cb_data;
 603         struct strbuf buf = STRBUF_INIT;
 604         struct string_list_item *item;
 605         int flag;
 606         const char *symref;
 607
 608         strbuf_addf(&buf, "refs/remotes/%s/", rename->old_name);
 609         if (starts_with(refname, buf.buf)) {
 610                 item = string_list_append(rename->remote_branches, refname);
 611                 symref = refs_resolve_ref_unsafe(get_main_ref_store(the_repository),
 612                                                  refname, RESOLVE_REF_READING,
 613                                                  NULL, &flag);
 614                 if (symref && (flag & REF_ISSYMREF)) {
 615                         item->util = xstrdup(symref);
 616                         rename->symrefs_nr++;
 617                 } else {
 618                         item->util = NULL;
 619                 }
 620         }
 621         strbuf_release(&buf);
 622
 623         return 0;
 624 }
 625
 626 static int migrate_file(struct remote *remote)
 627 {
 628         struct strbuf buf = STRBUF_INIT;
 629         int i;
 630
 631         strbuf_addf(&buf, "remote.%s.url", remote->name);
 632         for (i = 0; i < remote->url.nr; i++)
 633                 git_config_set_multivar(buf.buf, remote->url.v[i], "^$", 0);
 634         strbuf_reset(&buf);
 635         strbuf_addf(&buf, "remote.%s.push", remote->name);
 636         for (i = 0; i < remote->push.raw_nr; i++)
 637                 git_config_set_multivar(buf.buf, remote->push.raw[i], "^$", 0);
 638         strbuf_reset(&buf);
 639         strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 640         for (i = 0; i < remote->fetch.raw_nr; i++)
 641                 git_config_set_multivar(buf.buf, remote->fetch.raw[i], "^$", 0);
 642         if (remote->origin == REMOTE_REMOTES)
 643                 unlink_or_warn(git_path("remotes/%s", remote->name));
 644         else if (remote->origin == REMOTE_BRANCHES)
 645                 unlink_or_warn(git_path("branches/%s", remote->name));
 646         strbuf_release(&buf);
 647
 648         return 0;
 649 }
 650
 651 struct push_default_info
 652 {
 653         const char *old_name;
 654         enum config_scope scope;
 655         struct strbuf origin;
 656         int linenr;
 657 };
 658
 659 static int config_read_push_default(const char *key, const char *value,
 660         const struct config_context *ctx, void *cb)
 661 {
 662         const struct key_value_info *kvi = ctx->kvi;
 663
 664         struct push_default_info* info = cb;
 665         if (strcmp(key, "remote.pushdefault") ||
 666             !value || strcmp(value, info->old_name))
 667                 return 0;
 668
 669         info->scope = kvi->scope;
 670         strbuf_reset(&info->origin);
 671         strbuf_addstr(&info->origin, config_origin_type_name(kvi->origin_type));
 672         info->linenr = kvi->linenr;
 673
 674         return 0;
 675 }
 676
 677 static void handle_push_default(const char* old_name, const char* new_name)
 678 {
 679         struct push_default_info push_default = {
 680                 .old_name = old_name,
 681                 .scope = CONFIG_SCOPE_UNKNOWN,
 682                 .origin = STRBUF_INIT,
 683                 .linenr = -1,
 684         };
 685         git_config(config_read_push_default, &push_default);
 686         if (push_default.scope >= CONFIG_SCOPE_COMMAND)
 687                 ; /* pass */
 688         else if (push_default.scope >= CONFIG_SCOPE_LOCAL) {
 689                 int result = git_config_set_gently("remote.pushDefault",
 690                                                    new_name);
 691                 if (new_name && result && result != CONFIG_NOTHING_SET)
 692                         die(_("could not set '%s'"), "remote.pushDefault");
 693                 else if (!new_name && result && result != CONFIG_NOTHING_SET)
 694                         die(_("could not unset '%s'"), "remote.pushDefault");
 695         } else if (push_default.scope >= CONFIG_SCOPE_SYSTEM) {
 696                 /* warn */
 697                 warning(_("The %s configuration remote.pushDefault in:\n"
 698                           "\t%s:%d\n"
 699                           "now names the non-existent remote '%s'"),
 700                         config_scope_name(push_default.scope),
 701                         push_default.origin.buf, push_default.linenr,
 702                         old_name);
 703         }
 704
 705         strbuf_release(&push_default.origin);
 706 }
 707
 708
 709 static int mv(int argc, const char **argv, const char *prefix)
 710 {
 711         int show_progress = isatty(2);
 712         struct option options[] = {
 713                 OPT_BOOL(0, "progress", &show_progress, N_("force progress reporting")),
 714                 OPT_END()
 715         };
 716         struct remote *oldremote, *newremote;
 717         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT,
 718                 old_remote_context = STRBUF_INIT;
 719         struct string_list remote_branches = STRING_LIST_INIT_DUP;
 720         struct rename_info rename;
 721         int i, refs_renamed_nr = 0, refspec_updated = 0;
 722         struct progress *progress = NULL;
 723         int result = 0;
 724
 725         argc = parse_options(argc, argv, prefix, options,
 726                              builtin_remote_rename_usage, 0);
 727
 728         if (argc != 2)
 729                 usage_with_options(builtin_remote_rename_usage, options);
 730
 731         rename.old_name = argv[0];
 732         rename.new_name = argv[1];
 733         rename.remote_branches = &remote_branches;
 734         rename.symrefs_nr = 0;
 735
 736         oldremote = remote_get(rename.old_name);
 737         if (!remote_is_configured(oldremote, 1)) {
 738                 error(_("No such remote: '%s'"), rename.old_name);
 739                 exit(2);
 740         }
 741
 742         if (!strcmp(rename.old_name, rename.new_name) && oldremote->origin != REMOTE_CONFIG)
 743                 return migrate_file(oldremote);
 744
 745         newremote = remote_get(rename.new_name);
 746         if (remote_is_configured(newremote, 1)) {
 747                 error(_("remote %s already exists."), rename.new_name);
 748                 exit(3);
 749         }
 750
 751         if (!valid_remote_name(rename.new_name))
 752                 die(_("'%s' is not a valid remote name"), rename.new_name);
 753
 754         strbuf_addf(&buf, "remote.%s", rename.old_name);
 755         strbuf_addf(&buf2, "remote.%s", rename.new_name);
 756         if (repo_config_rename_section(the_repository, buf.buf, buf2.buf) < 1) {
 757                 result = error(_("Could not rename config section '%s' to '%s'"),
 758                                buf.buf, buf2.buf);
 759                 goto out;
 760         }
 761
 762         if (oldremote->fetch.raw_nr) {
 763                 strbuf_reset(&buf);
 764                 strbuf_addf(&buf, "remote.%s.fetch", rename.new_name);
 765                 git_config_set_multivar(buf.buf, NULL, NULL, CONFIG_FLAGS_MULTI_REPLACE);
 766                 strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old_name);
 767                 for (i = 0; i < oldremote->fetch.raw_nr; i++) {
 768                         char *ptr;
 769
 770                         strbuf_reset(&buf2);
 771                         strbuf_addstr(&buf2, oldremote->fetch.raw[i]);
 772                         ptr = strstr(buf2.buf, old_remote_context.buf);
 773                         if (ptr) {
 774                                 refspec_updated = 1;
 775                                 strbuf_splice(&buf2,
 776                                               ptr-buf2.buf + strlen(":refs/remotes/"),
 777                                               strlen(rename.old_name), rename.new_name,
 778                                               strlen(rename.new_name));
 779                         } else
 780                                 warning(_("Not updating non-default fetch refspec\n"
 781                                           "\t%s\n"
 782                                           "\tPlease update the configuration manually if necessary."),
 783                                         buf2.buf);
 784
 785                         git_config_set_multivar(buf.buf, buf2.buf, "^$", 0);
 786                 }
 787         }
 788
 789         read_branches();
 790         for (i = 0; i < branch_list.nr; i++) {
 791                 struct string_list_item *item = branch_list.items + i;
 792                 struct branch_info *info = item->util;
 793                 if (info->remote_name && !strcmp(info->remote_name, rename.old_name)) {
 794                         strbuf_reset(&buf);
 795                         strbuf_addf(&buf, "branch.%s.remote", item->string);
 796                         git_config_set(buf.buf, rename.new_name);
 797                 }
 798                 if (info->push_remote_name && !strcmp(info->push_remote_name, rename.old_name)) {
 799                         strbuf_reset(&buf);
 800                         strbuf_addf(&buf, "branch.%s.pushRemote", item->string);
 801                         git_config_set(buf.buf, rename.new_name);
 802                 }
 803         }
 804
 805         if (!refspec_updated)
 806                 goto out;
 807
 808         /*
 809          * First remove symrefs, then rename the rest, finally create
 810          * the new symrefs.
 811          */
 812         refs_for_each_ref(get_main_ref_store(the_repository),
 813                           read_remote_branches, &rename);
 814         if (show_progress) {
 815                 /*
 816                  * Count symrefs twice, since "renaming" them is done by
 817                  * deleting and recreating them in two separate passes.
 818                  */
 819                 progress = start_progress(_("Renaming remote references"),
 820                                           rename.remote_branches->nr + rename.symrefs_nr);
 821         }
 822         for (i = 0; i < remote_branches.nr; i++) {
 823                 struct string_list_item *item = remote_branches.items + i;
 824                 struct strbuf referent = STRBUF_INIT;
 825
 826                 if (refs_read_symbolic_ref(get_main_ref_store(the_repository), item->string,
 827                                            &referent))
 828                         continue;
 829                 if (refs_delete_ref(get_main_ref_store(the_repository), NULL, item->string, NULL, REF_NO_DEREF))
 830                         die(_("deleting '%s' failed"), item->string);
 831
 832                 strbuf_release(&referent);
 833                 display_progress(progress, ++refs_renamed_nr);
 834         }
 835         for (i = 0; i < remote_branches.nr; i++) {
 836                 struct string_list_item *item = remote_branches.items + i;
 837
 838                 if (item->util)
 839                         continue;
 840                 strbuf_reset(&buf);
 841                 strbuf_addstr(&buf, item->string);
 842                 strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old_name),
 843                                 rename.new_name, strlen(rename.new_name));
 844                 strbuf_reset(&buf2);
 845                 strbuf_addf(&buf2, "remote: renamed %s to %s",
 846                                 item->string, buf.buf);
 847                 if (refs_rename_ref(get_main_ref_store(the_repository), item->string, buf.buf, buf2.buf))
 848                         die(_("renaming '%s' failed"), item->string);
 849                 display_progress(progress, ++refs_renamed_nr);
 850         }
 851         for (i = 0; i < remote_branches.nr; i++) {
 852                 struct string_list_item *item = remote_branches.items + i;
 853
 854                 if (!item->util)
 855                         continue;
 856                 strbuf_reset(&buf);
 857                 strbuf_addstr(&buf, item->string);
 858                 strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old_name),
 859                                 rename.new_name, strlen(rename.new_name));
 860                 strbuf_reset(&buf2);
 861                 strbuf_addstr(&buf2, item->util);
 862                 strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old_name),
 863                                 rename.new_name, strlen(rename.new_name));
 864                 strbuf_reset(&buf3);
 865                 strbuf_addf(&buf3, "remote: renamed %s to %s",
 866                                 item->string, buf.buf);
 867                 if (refs_update_symref(get_main_ref_store(the_repository), buf.buf, buf2.buf, buf3.buf))
 868                         die(_("creating '%s' failed"), buf.buf);
 869                 display_progress(progress, ++refs_renamed_nr);
 870         }
 871         stop_progress(&progress);
 872
 873         handle_push_default(rename.old_name, rename.new_name);
 874
 875 out:
 876         string_list_clear(&remote_branches, 1);
 877         strbuf_release(&old_remote_context);
 878         strbuf_release(&buf);
 879         strbuf_release(&buf2);
 880         strbuf_release(&buf3);
 881         return result;
 882 }
 883
 884 static int rm(int argc, const char **argv, const char *prefix)
 885 {
 886         struct option options[] = {
 887                 OPT_END()
 888         };
 889         struct remote *remote;
 890         struct strbuf buf = STRBUF_INIT;
 891         struct known_remotes known_remotes = { NULL, NULL };
 892         struct string_list branches = STRING_LIST_INIT_DUP;
 893         struct string_list skipped = STRING_LIST_INIT_DUP;
 894         struct branches_for_remote cb_data;
 895         int i, result;
 896
 897         memset(&cb_data, 0, sizeof(cb_data));
 898         cb_data.branches = &branches;
 899         cb_data.skipped = &skipped;
 900         cb_data.keep = &known_remotes;
 901
 902         argc = parse_options(argc, argv, prefix, options,
 903                              builtin_remote_rm_usage, 0);
 904         if (argc != 1)
 905                 usage_with_options(builtin_remote_rm_usage, options);
 906
 907         remote = remote_get(argv[0]);
 908         if (!remote_is_configured(remote, 1)) {
 909                 error(_("No such remote: '%s'"), argv[0]);
 910                 exit(2);
 911         }
 912
 913         known_remotes.to_delete = remote;
 914         for_each_remote(add_known_remote, &known_remotes);
 915
 916         read_branches();
 917         for (i = 0; i < branch_list.nr; i++) {
 918                 struct string_list_item *item = branch_list.items + i;
 919                 struct branch_info *info = item->util;
 920                 if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 921                         const char *keys[] = { "remote", "merge", NULL }, **k;
 922                         for (k = keys; *k; k++) {
 923                                 strbuf_reset(&buf);
 924                                 strbuf_addf(&buf, "branch.%s.%s",
 925                                                 item->string, *k);
 926                                 result = git_config_set_gently(buf.buf, NULL);
 927                                 if (result && result != CONFIG_NOTHING_SET)
 928                                         die(_("could not unset '%s'"), buf.buf);
 929                         }
 930                 }
 931                 if (info->push_remote_name && !strcmp(info->push_remote_name, remote->name)) {
 932                         strbuf_reset(&buf);
 933                         strbuf_addf(&buf, "branch.%s.pushremote", item->string);
 934                         result = git_config_set_gently(buf.buf, NULL);
 935                         if (result && result != CONFIG_NOTHING_SET)
 936                                 die(_("could not unset '%s'"), buf.buf);
 937                 }
 938         }
 939
 940         /*
 941          * We cannot just pass a function to for_each_ref() which deletes
 942          * the branches one by one, since for_each_ref() relies on cached
 943          * refs, which are invalidated when deleting a branch.
 944          */
 945         cb_data.remote = remote;
 946         result = refs_for_each_ref(get_main_ref_store(the_repository),
 947                                    add_branch_for_removal, &cb_data);
 948         strbuf_release(&buf);
 949
 950         if (!result)
 951                 result = refs_delete_refs(get_main_ref_store(the_repository),
 952                                           "remote: remove", &branches,
 953                                           REF_NO_DEREF);
 954         string_list_clear(&branches, 0);
 955
 956         if (skipped.nr) {
 957                 fprintf_ln(stderr,
 958                            Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 959                               "to delete it, use:",
 960                               "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 961                               "to delete them, use:",
 962                               skipped.nr));
 963                 for (i = 0; i < skipped.nr; i++)
 964                         fprintf(stderr, "  git branch -d %s\n",
 965                                 skipped.items[i].string);
 966         }
 967         string_list_clear(&skipped, 0);
 968
 969         if (!result) {
 970                 strbuf_addf(&buf, "remote.%s", remote->name);
 971                 if (repo_config_rename_section(the_repository, buf.buf, NULL) < 1) {
 972                         result = error(_("Could not remove config section '%s'"), buf.buf);
 973                         goto out;
 974                 }
 975
 976                 handle_push_default(remote->name, NULL);
 977         }
 978
 979 out:
 980         for (struct known_remote *r = known_remotes.list; r;) {
 981                 struct known_remote *next = r->next;
 982                 free(r);
 983                 r = next;
 984         }
 985         strbuf_release(&buf);
 986         return result;
 987 }
 988
 989 static void clear_push_info(void *util, const char *string UNUSED)
 990 {
 991         struct push_info *info = util;
 992         free(info->dest);
 993         free(info);
 994 }
 995
 996 static void free_remote_ref_states(struct ref_states *states)
 997 {
 998         string_list_clear(&states->new_refs, 0);
 999         string_list_clear(&states->skipped, 0);
1000         string_list_clear(&states->stale, 1);
1001         string_list_clear(&states->tracked, 0);
1002         string_list_clear(&states->heads, 0);
1003         string_list_clear_func(&states->push, clear_push_info);
1004 }
1005
1006 static int append_ref_to_tracked_list(const char *refname,
1007                                       const char *referent UNUSED,
1008                                       const struct object_id *oid UNUSED,
1009                                       int flags, void *cb_data)
1010 {
1011         struct ref_states *states = cb_data;
1012         struct refspec_item refspec;
1013
1014         if (flags & REF_ISSYMREF)
1015                 return 0;
1016
1017         memset(&refspec, 0, sizeof(refspec));
1018         refspec.dst = (char *)refname;
1019         if (!remote_find_tracking(states->remote, &refspec)) {
1020                 string_list_append(&states->tracked, abbrev_branch(refspec.src));
1021                 free(refspec.src);
1022         }
1023
1024         return 0;
1025 }
1026
1027 static int get_remote_ref_states(const char *name,
1028                                  struct ref_states *states,
1029                                  int query)
1030 {
1031         states->remote = remote_get(name);
1032         if (!states->remote)
1033                 return error(_("No such remote: '%s'"), name);
1034
1035         read_branches();
1036
1037         if (query) {
1038                 struct transport *transport;
1039                 const struct ref *remote_refs;
1040
1041                 transport = transport_get(states->remote, states->remote->url.v[0]);
1042                 remote_refs = transport_get_remote_refs(transport, NULL);
1043
1044                 states->queried = 1;
1045                 if (query & GET_REF_STATES)
1046                         get_ref_states(remote_refs, states);
1047                 if (query & GET_HEAD_NAMES)
1048                         get_head_names(remote_refs, states);
1049                 if (query & GET_PUSH_REF_STATES)
1050                         get_push_ref_states(remote_refs, states);
1051                 transport_disconnect(transport);
1052         } else {
1053                 refs_for_each_ref(get_main_ref_store(the_repository),
1054                                   append_ref_to_tracked_list, states);
1055                 string_list_sort(&states->tracked);
1056                 get_push_ref_states_noquery(states);
1057         }
1058
1059         return 0;
1060 }
1061
1062 struct show_info {
1063         struct string_list list;
1064         struct ref_states states;
1065         int width, width2;
1066         int any_rebase;
1067 };
1068
1069 #define SHOW_INFO_INIT { \
1070         .list = STRING_LIST_INIT_DUP, \
1071         .states = REF_STATES_INIT, \
1072 }
1073
1074 static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
1075 {
1076         struct show_info *info = cb_data;
1077         int n = strlen(item->string);
1078         if (n > info->width)
1079                 info->width = n;
1080         string_list_insert(&info->list, item->string);
1081         return 0;
1082 }
1083
1084 static int show_remote_info_item(struct string_list_item *item, void *cb_data)
1085 {
1086         struct show_info *info = cb_data;
1087         struct ref_states *states = &info->states;
1088         const char *name = item->string;
1089
1090         if (states->queried) {
1091                 const char *fmt = "%s";
1092                 const char *arg = "";
1093                 if (string_list_has_string(&states->new_refs, name)) {
1094                         fmt = _(" new (next fetch will store in remotes/%s)");
1095                         arg = states->remote->name;
1096                 } else if (string_list_has_string(&states->tracked, name))
1097                         arg = _(" tracked");
1098                 else if (string_list_has_string(&states->skipped, name))
1099                         arg = _(" skipped");
1100                 else if (string_list_has_string(&states->stale, name))
1101                         arg = _(" stale (use 'git remote prune' to remove)");
1102                 else
1103                         arg = _(" ???");
1104                 printf("    %-*s", info->width, name);
1105                 printf(fmt, arg);
1106                 printf("\n");
1107         } else
1108                 printf("    %s\n", name);
1109
1110         return 0;
1111 }
1112
1113 static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
1114 {
1115         struct show_info *show_info = cb_data;
1116         struct ref_states *states = &show_info->states;
1117         struct branch_info *branch_info = branch_item->util;
1118         struct string_list_item *item;
1119         int n;
1120
1121         if (!branch_info->merge.nr || !branch_info->remote_name ||
1122             strcmp(states->remote->name, branch_info->remote_name))
1123                 return 0;
1124         if ((n = strlen(branch_item->string)) > show_info->width)
1125                 show_info->width = n;
1126         if (branch_info->rebase >= REBASE_TRUE)
1127                 show_info->any_rebase = 1;
1128
1129         item = string_list_insert(&show_info->list, branch_item->string);
1130         item->util = branch_info;
1131
1132         return 0;
1133 }
1134
1135 static int show_local_info_item(struct string_list_item *item, void *cb_data)
1136 {
1137         struct show_info *show_info = cb_data;
1138         struct branch_info *branch_info = item->util;
1139         struct string_list *merge = &branch_info->merge;
1140         int width = show_info->width + 4;
1141         int i;
1142
1143         if (branch_info->rebase >= REBASE_TRUE && branch_info->merge.nr > 1) {
1144                 error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"),
1145                         item->string);
1146                 return 0;
1147         }
1148
1149         printf("    %-*s ", show_info->width, item->string);
1150         if (branch_info->rebase >= REBASE_TRUE) {
1151                 const char *msg;
1152                 if (branch_info->rebase == REBASE_INTERACTIVE)
1153                         msg = _("rebases interactively onto remote %s");
1154                 else if (branch_info->rebase == REBASE_MERGES)
1155                         msg = _("rebases interactively (with merges) onto "
1156                                 "remote %s");
1157                 else
1158                         msg = _("rebases onto remote %s");
1159                 printf_ln(msg, merge->items[0].string);
1160                 return 0;
1161         } else if (show_info->any_rebase) {
1162                 printf_ln(_(" merges with remote %s"), merge->items[0].string);
1163                 width++;
1164         } else {
1165                 printf_ln(_("merges with remote %s"), merge->items[0].string);
1166         }
1167         for (i = 1; i < merge->nr; i++)
1168                 printf(_("%-*s    and with remote %s\n"), width, "",
1169                        merge->items[i].string);
1170
1171         return 0;
1172 }
1173
1174 static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
1175 {
1176         struct show_info *show_info = cb_data;
1177         struct push_info *push_info = push_item->util;
1178         struct string_list_item *item;
1179         int n;
1180         if ((n = strlen(push_item->string)) > show_info->width)
1181                 show_info->width = n;
1182         if ((n = strlen(push_info->dest)) > show_info->width2)
1183                 show_info->width2 = n;
1184         item = string_list_append(&show_info->list, push_item->string);
1185         item->util = push_item->util;
1186         return 0;
1187 }
1188
1189 /*
1190  * Sorting comparison for a string list that has push_info
1191  * structs in its util field
1192  */
1193 static int cmp_string_with_push(const void *va, const void *vb)
1194 {
1195         const struct string_list_item *a = va;
1196         const struct string_list_item *b = vb;
1197         const struct push_info *a_push = a->util;
1198         const struct push_info *b_push = b->util;
1199         int cmp = strcmp(a->string, b->string);
1200         return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1201 }
1202
1203 static int show_push_info_item(struct string_list_item *item, void *cb_data)
1204 {
1205         struct show_info *show_info = cb_data;
1206         struct push_info *push_info = item->util;
1207         const char *src = item->string, *status = NULL;
1208
1209         switch (push_info->status) {
1210         case PUSH_STATUS_CREATE:
1211                 status = _("create");
1212                 break;
1213         case PUSH_STATUS_DELETE:
1214                 status = _("delete");
1215                 src = _("(none)");
1216                 break;
1217         case PUSH_STATUS_UPTODATE:
1218                 status = _("up to date");
1219                 break;
1220         case PUSH_STATUS_FASTFORWARD:
1221                 status = _("fast-forwardable");
1222                 break;
1223         case PUSH_STATUS_OUTOFDATE:
1224                 status = _("local out of date");
1225                 break;
1226         case PUSH_STATUS_NOTQUERIED:
1227                 break;
1228         }
1229         if (status) {
1230                 if (push_info->forced)
1231                         printf_ln(_("    %-*s forces to %-*s (%s)"), show_info->width, src,
1232                                show_info->width2, push_info->dest, status);
1233                 else
1234                         printf_ln(_("    %-*s pushes to %-*s (%s)"), show_info->width, src,
1235                                show_info->width2, push_info->dest, status);
1236         } else {
1237                 if (push_info->forced)
1238                         printf_ln(_("    %-*s forces to %s"), show_info->width, src,
1239                                push_info->dest);
1240                 else
1241                         printf_ln(_("    %-*s pushes to %s"), show_info->width, src,
1242                                push_info->dest);
1243         }
1244         return 0;
1245 }
1246
1247 static int get_one_entry(struct remote *remote, void *priv)
1248 {
1249         struct string_list *list = priv;
1250         struct strbuf remote_info_buf = STRBUF_INIT;
1251         struct strvec *url;
1252         int i;
1253
1254         if (remote->url.nr > 0) {
1255                 struct strbuf promisor_config = STRBUF_INIT;
1256                 const char *partial_clone_filter = NULL;
1257
1258                 strbuf_addf(&promisor_config, "remote.%s.partialclonefilter", remote->name);
1259                 strbuf_addf(&remote_info_buf, "%s (fetch)", remote->url.v[0]);
1260                 if (!git_config_get_string_tmp(promisor_config.buf, &partial_clone_filter))
1261                         strbuf_addf(&remote_info_buf, " [%s]", partial_clone_filter);
1262
1263                 strbuf_release(&promisor_config);
1264                 string_list_append(list, remote->name)->util =
1265                                 strbuf_detach(&remote_info_buf, NULL);
1266         } else
1267                 string_list_append(list, remote->name)->util = NULL;
1268         url = push_url_of_remote(remote);
1269         for (i = 0; i < url->nr; i++)
1270         {
1271                 strbuf_addf(&remote_info_buf, "%s (push)", url->v[i]);
1272                 string_list_append(list, remote->name)->util =
1273                                 strbuf_detach(&remote_info_buf, NULL);
1274         }
1275
1276         return 0;
1277 }
1278
1279 static int show_all(void)
1280 {
1281         struct string_list list = STRING_LIST_INIT_DUP;
1282         int result;
1283
1284         result = for_each_remote(get_one_entry, &list);
1285
1286         if (!result) {
1287                 int i;
1288
1289                 string_list_sort(&list);
1290                 for (i = 0; i < list.nr; i++) {
1291                         struct string_list_item *item = list.items + i;
1292                         if (verbose)
1293                                 printf("%s\t%s\n", item->string,
1294                                         item->util ? (const char *)item->util : "");
1295                         else {
1296                                 if (i && !strcmp((item - 1)->string, item->string))
1297                                         continue;
1298                                 printf("%s\n", item->string);
1299                         }
1300                 }
1301         }
1302         string_list_clear(&list, 1);
1303         return result;
1304 }
1305
1306 static int show(int argc, const char **argv, const char *prefix)
1307 {
1308         int no_query = 0, result = 0, query_flag = 0;
1309         struct option options[] = {
1310                 OPT_BOOL('n', NULL, &no_query, N_("do not query remotes")),
1311                 OPT_END()
1312         };
1313         struct show_info info = SHOW_INFO_INIT;
1314
1315         argc = parse_options(argc, argv, prefix, options,
1316                              builtin_remote_show_usage,
1317                              0);
1318
1319         if (argc < 1)
1320                 return show_all();
1321
1322         if (!no_query)
1323                 query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1324
1325         for (; argc; argc--, argv++) {
1326                 int i;
1327                 struct strvec *url;
1328
1329                 get_remote_ref_states(*argv, &info.states, query_flag);
1330
1331                 printf_ln(_("* remote %s"), *argv);
1332                 printf_ln(_("  Fetch URL: %s"), info.states.remote->url.v[0]);
1333                 url = push_url_of_remote(info.states.remote);
1334                 for (i = 0; i < url->nr; i++)
1335                         /*
1336                          * TRANSLATORS: the colon ':' should align
1337                          * with the one in " Fetch URL: %s"
1338                          * translation.
1339                          */
1340                         printf_ln(_("  Push  URL: %s"), url->v[i]);
1341                 if (!i)
1342                         printf_ln(_("  Push  URL: %s"), _("(no URL)"));
1343                 if (no_query)
1344                         printf_ln(_("  HEAD branch: %s"), _("(not queried)"));
1345                 else if (!info.states.heads.nr)
1346                         printf_ln(_("  HEAD branch: %s"), _("(unknown)"));
1347                 else if (info.states.heads.nr == 1)
1348                         printf_ln(_("  HEAD branch: %s"), info.states.heads.items[0].string);
1349                 else {
1350                         printf(_("  HEAD branch (remote HEAD is ambiguous,"
1351                                  " may be one of the following):\n"));
1352                         for (i = 0; i < info.states.heads.nr; i++)
1353                                 printf("    %s\n", info.states.heads.items[i].string);
1354                 }
1355
1356                 /* remote branch info */
1357                 info.width = 0;
1358                 for_each_string_list(&info.states.new_refs, add_remote_to_show_info, &info);
1359                 for_each_string_list(&info.states.skipped, add_remote_to_show_info, &info);
1360                 for_each_string_list(&info.states.tracked, add_remote_to_show_info, &info);
1361                 for_each_string_list(&info.states.stale, add_remote_to_show_info, &info);
1362                 if (info.list.nr)
1363                         printf_ln(Q_("  Remote branch:%s",
1364                                      "  Remote branches:%s",
1365                                      info.list.nr),
1366                                   no_query ? _(" (status not queried)") : "");
1367                 for_each_string_list(&info.list, show_remote_info_item, &info);
1368                 string_list_clear(&info.list, 0);
1369
1370                 /* git pull info */
1371                 info.width = 0;
1372                 info.any_rebase = 0;
1373                 for_each_string_list(&branch_list, add_local_to_show_info, &info);
1374                 if (info.list.nr)
1375                         printf_ln(Q_("  Local branch configured for 'git pull':",
1376                                      "  Local branches configured for 'git pull':",
1377                                      info.list.nr));
1378                 for_each_string_list(&info.list, show_local_info_item, &info);
1379                 string_list_clear(&info.list, 0);
1380
1381                 /* git push info */
1382                 if (info.states.remote->mirror)
1383                         printf_ln(_("  Local refs will be mirrored by 'git push'"));
1384
1385                 info.width = info.width2 = 0;
1386                 for_each_string_list(&info.states.push, add_push_to_show_info, &info);
1387                 QSORT(info.list.items, info.list.nr, cmp_string_with_push);
1388                 if (info.list.nr)
1389                         printf_ln(Q_("  Local ref configured for 'git push'%s:",
1390                                      "  Local refs configured for 'git push'%s:",
1391                                      info.list.nr),
1392                                   no_query ? _(" (status not queried)") : "");
1393                 for_each_string_list(&info.list, show_push_info_item, &info);
1394                 string_list_clear(&info.list, 0);
1395
1396                 free_remote_ref_states(&info.states);
1397         }
1398
1399         return result;
1400 }
1401
1402 static int set_head(int argc, const char **argv, const char *prefix)
1403 {
1404         int i, opt_a = 0, opt_d = 0, result = 0;
1405         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1406         char *head_name = NULL;
1407
1408         struct option options[] = {
1409                 OPT_BOOL('a', "auto", &opt_a,
1410                          N_("set refs/remotes/<name>/HEAD according to remote")),
1411                 OPT_BOOL('d', "delete", &opt_d,
1412                          N_("delete refs/remotes/<name>/HEAD")),
1413                 OPT_END()
1414         };
1415         argc = parse_options(argc, argv, prefix, options,
1416                              builtin_remote_sethead_usage, 0);
1417         if (argc)
1418                 strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1419
1420         if (!opt_a && !opt_d && argc == 2) {
1421                 head_name = xstrdup(argv[1]);
1422         } else if (opt_a && !opt_d && argc == 1) {
1423                 struct ref_states states = REF_STATES_INIT;
1424                 get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1425                 if (!states.heads.nr)
1426                         result |= error(_("Cannot determine remote HEAD"));
1427                 else if (states.heads.nr > 1) {
1428                         result |= error(_("Multiple remote HEAD branches. "
1429                                           "Please choose one explicitly with:"));
1430                         for (i = 0; i < states.heads.nr; i++)
1431                                 fprintf(stderr, "  git remote set-head %s %s\n",
1432                                         argv[0], states.heads.items[i].string);
1433                 } else
1434                         head_name = xstrdup(states.heads.items[0].string);
1435                 free_remote_ref_states(&states);
1436         } else if (opt_d && !opt_a && argc == 1) {
1437                 if (refs_delete_ref(get_main_ref_store(the_repository), NULL, buf.buf, NULL, REF_NO_DEREF))
1438                         result |= error(_("Could not delete %s"), buf.buf);
1439         } else
1440                 usage_with_options(builtin_remote_sethead_usage, options);
1441
1442         if (head_name) {
1443                 strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1444                 /* make sure it's valid */
1445                 if (!refs_ref_exists(get_main_ref_store(the_repository), buf2.buf))
1446                         result |= error(_("Not a valid ref: %s"), buf2.buf);
1447                 else if (refs_update_symref(get_main_ref_store(the_repository), buf.buf, buf2.buf, "remote set-head"))
1448                         result |= error(_("Could not setup %s"), buf.buf);
1449                 else if (opt_a)
1450                         printf("%s/HEAD set to %s\n", argv[0], head_name);
1451                 free(head_name);
1452         }
1453
1454         strbuf_release(&buf);
1455         strbuf_release(&buf2);
1456         return result;
1457 }
1458
1459 static int prune_remote(const char *remote, int dry_run)
1460 {
1461         int result = 0;
1462         struct ref_states states = REF_STATES_INIT;
1463         struct string_list refs_to_prune = STRING_LIST_INIT_NODUP;
1464         struct string_list_item *item;
1465         const char *dangling_msg = dry_run
1466                 ? _(" %s will become dangling!")
1467                 : _(" %s has become dangling!");
1468
1469         get_remote_ref_states(remote, &states, GET_REF_STATES);
1470
1471         if (!states.stale.nr) {
1472                 free_remote_ref_states(&states);
1473                 return 0;
1474         }
1475
1476         printf_ln(_("Pruning %s"), remote);
1477         printf_ln(_("URL: %s"), states.remote->url.v[0]);
1478
1479         for_each_string_list_item(item, &states.stale)
1480                 string_list_append(&refs_to_prune, item->util);
1481         string_list_sort(&refs_to_prune);
1482
1483         if (!dry_run)
1484                 result |= refs_delete_refs(get_main_ref_store(the_repository),
1485                                            "remote: prune", &refs_to_prune, 0);
1486
1487         for_each_string_list_item(item, &states.stale) {
1488                 const char *refname = item->util;
1489
1490                 if (dry_run)
1491                         printf_ln(_(" * [would prune] %s"),
1492                                abbrev_ref(refname, "refs/remotes/"));
1493                 else
1494                         printf_ln(_(" * [pruned] %s"),
1495                                abbrev_ref(refname, "refs/remotes/"));
1496         }
1497
1498         refs_warn_dangling_symrefs(get_main_ref_store(the_repository),
1499                                    stdout, dangling_msg, &refs_to_prune);
1500
1501         string_list_clear(&refs_to_prune, 0);
1502         free_remote_ref_states(&states);
1503         return result;
1504 }
1505
1506 static int prune(int argc, const char **argv, const char *prefix)
1507 {
1508         int dry_run = 0, result = 0;
1509         struct option options[] = {
1510                 OPT__DRY_RUN(&dry_run, N_("dry run")),
1511                 OPT_END()
1512         };
1513
1514         argc = parse_options(argc, argv, prefix, options,
1515                              builtin_remote_prune_usage, 0);
1516
1517         if (argc < 1)
1518                 usage_with_options(builtin_remote_prune_usage, options);
1519
1520         for (; argc; argc--, argv++)
1521                 result |= prune_remote(*argv, dry_run);
1522
1523         return result;
1524 }
1525
1526 static int get_remote_default(const char *key, const char *value UNUSED,
1527                               const struct config_context *ctx UNUSED,
1528                               void *priv)
1529 {
1530         if (strcmp(key, "remotes.default") == 0) {
1531                 int *found = priv;
1532                 *found = 1;
1533         }
1534         return 0;
1535 }
1536
1537 static int update(int argc, const char **argv, const char *prefix)
1538 {
1539         int i, prune = -1;
1540         struct option options[] = {
1541                 OPT_BOOL('p', "prune", &prune,
1542                          N_("prune remotes after fetching")),
1543                 OPT_END()
1544         };
1545         struct child_process cmd = CHILD_PROCESS_INIT;
1546         int default_defined = 0;
1547
1548         argc = parse_options(argc, argv, prefix, options,
1549                              builtin_remote_update_usage,
1550                              PARSE_OPT_KEEP_ARGV0);
1551
1552         strvec_push(&cmd.args, "fetch");
1553
1554         if (prune != -1)
1555                 strvec_push(&cmd.args, prune ? "--prune" : "--no-prune");
1556         if (verbose)
1557                 strvec_push(&cmd.args, "-v");
1558         strvec_push(&cmd.args, "--multiple");
1559         if (argc < 2)
1560                 strvec_push(&cmd.args, "default");
1561         for (i = 1; i < argc; i++)
1562                 strvec_push(&cmd.args, argv[i]);
1563
1564         if (strcmp(cmd.args.v[cmd.args.nr-1], "default") == 0) {
1565                 git_config(get_remote_default, &default_defined);
1566                 if (!default_defined) {
1567                         strvec_pop(&cmd.args);
1568                         strvec_push(&cmd.args, "--all");
1569                 }
1570         }
1571
1572         cmd.git_cmd = 1;
1573         return run_command(&cmd);
1574 }
1575
1576 static int remove_all_fetch_refspecs(const char *key)
1577 {
1578         return git_config_set_multivar_gently(key, NULL, NULL,
1579                                               CONFIG_FLAGS_MULTI_REPLACE);
1580 }
1581
1582 static void add_branches(struct remote *remote, const char **branches,
1583                          const char *key)
1584 {
1585         const char *remotename = remote->name;
1586         int mirror = remote->mirror;
1587         struct strbuf refspec = STRBUF_INIT;
1588
1589         for (; *branches; branches++)
1590                 add_branch(key, *branches, remotename, mirror, &refspec);
1591
1592         strbuf_release(&refspec);
1593 }
1594
1595 static int set_remote_branches(const char *remotename, const char **branches,
1596                                 int add_mode)
1597 {
1598         struct strbuf key = STRBUF_INIT;
1599         struct remote *remote;
1600
1601         strbuf_addf(&key, "remote.%s.fetch", remotename);
1602
1603         remote = remote_get(remotename);
1604         if (!remote_is_configured(remote, 1)) {
1605                 error(_("No such remote '%s'"), remotename);
1606                 exit(2);
1607         }
1608
1609         if (!add_mode && remove_all_fetch_refspecs(key.buf)) {
1610                 strbuf_release(&key);
1611                 return 1;
1612         }
1613         add_branches(remote, branches, key.buf);
1614
1615         strbuf_release(&key);
1616         return 0;
1617 }
1618
1619 static int set_branches(int argc, const char **argv, const char *prefix)
1620 {
1621         int add_mode = 0;
1622         struct option options[] = {
1623                 OPT_BOOL('\0', "add", &add_mode, N_("add branch")),
1624                 OPT_END()
1625         };
1626
1627         argc = parse_options(argc, argv, prefix, options,
1628                              builtin_remote_setbranches_usage, 0);
1629         if (argc == 0) {
1630                 error(_("no remote specified"));
1631                 usage_with_options(builtin_remote_setbranches_usage, options);
1632         }
1633         argv[argc] = NULL;
1634
1635         return set_remote_branches(argv[0], argv + 1, add_mode);
1636 }
1637
1638 static int get_url(int argc, const char **argv, const char *prefix)
1639 {
1640         int i, push_mode = 0, all_mode = 0;
1641         const char *remotename = NULL;
1642         struct remote *remote;
1643         struct strvec *url;
1644         struct option options[] = {
1645                 OPT_BOOL('\0', "push", &push_mode,
1646                          N_("query push URLs rather than fetch URLs")),
1647                 OPT_BOOL('\0', "all", &all_mode,
1648                          N_("return all URLs")),
1649                 OPT_END()
1650         };
1651         argc = parse_options(argc, argv, prefix, options,
1652                              builtin_remote_geturl_usage, 0);
1653
1654         if (argc != 1)
1655                 usage_with_options(builtin_remote_geturl_usage, options);
1656
1657         remotename = argv[0];
1658
1659         remote = remote_get(remotename);
1660         if (!remote_is_configured(remote, 1)) {
1661                 error(_("No such remote '%s'"), remotename);
1662                 exit(2);
1663         }
1664
1665         url = push_mode ? push_url_of_remote(remote) : &remote->url;
1666
1667         if (all_mode) {
1668                 for (i = 0; i < url->nr; i++)
1669                         printf_ln("%s", url->v[i]);
1670         } else {
1671                 printf_ln("%s", url->v[0]);
1672         }
1673
1674         return 0;
1675 }
1676
1677 static int set_url(int argc, const char **argv, const char *prefix)
1678 {
1679         int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1680         int matches = 0, negative_matches = 0;
1681         const char *remotename = NULL;
1682         const char *newurl = NULL;
1683         const char *oldurl = NULL;
1684         struct remote *remote;
1685         regex_t old_regex;
1686         struct strvec *urlset;
1687         struct strbuf name_buf = STRBUF_INIT;
1688         struct option options[] = {
1689                 OPT_BOOL('\0', "push", &push_mode,
1690                          N_("manipulate push URLs")),
1691                 OPT_BOOL('\0', "add", &add_mode,
1692                          N_("add URL")),
1693                 OPT_BOOL('\0', "delete", &delete_mode,
1694                             N_("delete URLs")),
1695                 OPT_END()
1696         };
1697         argc = parse_options(argc, argv, prefix, options,
1698                              builtin_remote_seturl_usage,
1699                              PARSE_OPT_KEEP_ARGV0);
1700
1701         if (add_mode && delete_mode)
1702                 die(_("--add --delete doesn't make sense"));
1703
1704         if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1705                 usage_with_options(builtin_remote_seturl_usage, options);
1706
1707         remotename = argv[1];
1708         newurl = argv[2];
1709         if (argc > 3)
1710                 oldurl = argv[3];
1711
1712         if (delete_mode)
1713                 oldurl = newurl;
1714
1715         remote = remote_get(remotename);
1716         if (!remote_is_configured(remote, 1)) {
1717                 error(_("No such remote '%s'"), remotename);
1718                 exit(2);
1719         }
1720
1721         if (push_mode) {
1722                 strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1723                 urlset = &remote->pushurl;
1724         } else {
1725                 strbuf_addf(&name_buf, "remote.%s.url", remotename);
1726                 urlset = &remote->url;
1727         }
1728
1729         /* Special cases that add new entry. */
1730         if ((!oldurl && !delete_mode) || add_mode) {
1731                 if (add_mode)
1732                         git_config_set_multivar(name_buf.buf, newurl,
1733                                                        "^$", 0);
1734                 else
1735                         git_config_set(name_buf.buf, newurl);
1736                 goto out;
1737         }
1738
1739         /* Old URL specified. Demand that one matches. */
1740         if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1741                 die(_("Invalid old URL pattern: %s"), oldurl);
1742
1743         for (i = 0; i < urlset->nr; i++)
1744                 if (!regexec(&old_regex, urlset->v[i], 0, NULL, 0))
1745                         matches++;
1746                 else
1747                         negative_matches++;
1748         if (!delete_mode && !matches)
1749                 die(_("No such URL found: %s"), oldurl);
1750         if (delete_mode && !negative_matches && !push_mode)
1751                 die(_("Will not delete all non-push URLs"));
1752
1753         regfree(&old_regex);
1754
1755         if (!delete_mode)
1756                 git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1757         else
1758                 git_config_set_multivar(name_buf.buf, NULL, oldurl,
1759                                         CONFIG_FLAGS_MULTI_REPLACE);
1760 out:
1761         strbuf_release(&name_buf);
1762         return 0;
1763 }
1764
1765 int cmd_remote(int argc,
1766                const char **argv,
1767                const char *prefix,
1768                struct repository *repo UNUSED)
1769 {
1770         parse_opt_subcommand_fn *fn = NULL;
1771         struct option options[] = {
1772                 OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")),
1773                 OPT_SUBCOMMAND("add", &fn, add),
1774                 OPT_SUBCOMMAND("rename", &fn, mv),
1775                 OPT_SUBCOMMAND_F("rm", &fn, rm, PARSE_OPT_NOCOMPLETE),
1776                 OPT_SUBCOMMAND("remove", &fn, rm),
1777                 OPT_SUBCOMMAND("set-head", &fn, set_head),
1778                 OPT_SUBCOMMAND("set-branches", &fn, set_branches),
1779                 OPT_SUBCOMMAND("get-url", &fn, get_url),
1780                 OPT_SUBCOMMAND("set-url", &fn, set_url),
1781                 OPT_SUBCOMMAND("show", &fn, show),
1782                 OPT_SUBCOMMAND("prune", &fn, prune),
1783                 OPT_SUBCOMMAND("update", &fn, update),
1784                 OPT_END()
1785         };
1786
1787         argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1788                              PARSE_OPT_SUBCOMMAND_OPTIONAL);
1789
1790         if (fn) {
1791                 return !!fn(argc, argv, prefix);
1792         } else {
1793                 if (argc) {
1794                         error(_("unknown subcommand: `%s'"), argv[0]);
1795                         usage_with_options(builtin_remote_usage, options);
1796                 }
1797                 return !!show_all();
1798         }
1799 }