builtin/remote.c

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