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

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