builtin / remote.con commit Merge branch 'jk/submodule-fsck-loose-fixup' (fb6ac9e)
   1#include "builtin.h"
   2#include "config.h"
   3#include "parse-options.h"
   4#include "transport.h"
   5#include "remote.h"
   6#include "string-list.h"
   7#include "strbuf.h"
   8#include "run-command.h"
   9#include "refs.h"
  10#include "refspec.h"
  11#include "argv-array.h"
  12
  13static const char * const builtin_remote_usage[] = {
  14        N_("git remote [-v | --verbose]"),
  15        N_("git remote add [-t <branch>] [-m <master>] [-f] [--tags | --no-tags] [--mirror=<fetch|push>] <name> <url>"),
  16        N_("git remote rename <old> <new>"),
  17        N_("git remote remove <name>"),
  18        N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
  19        N_("git remote [-v | --verbose] show [-n] <name>"),
  20        N_("git remote prune [-n | --dry-run] <name>"),
  21        N_("git remote [-v | --verbose] update [-p | --prune] [(<group> | <remote>)...]"),
  22        N_("git remote set-branches [--add] <name> <branch>..."),
  23        N_("git remote get-url [--push] [--all] <name>"),
  24        N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
  25        N_("git remote set-url --add <name> <newurl>"),
  26        N_("git remote set-url --delete <name> <url>"),
  27        NULL
  28};
  29
  30static const char * const builtin_remote_add_usage[] = {
  31        N_("git remote add [<options>] <name> <url>"),
  32        NULL
  33};
  34
  35static const char * const builtin_remote_rename_usage[] = {
  36        N_("git remote rename <old> <new>"),
  37        NULL
  38};
  39
  40static const char * const builtin_remote_rm_usage[] = {
  41        N_("git remote remove <name>"),
  42        NULL
  43};
  44
  45static const char * const builtin_remote_sethead_usage[] = {
  46        N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
  47        NULL
  48};
  49
  50static const char * const builtin_remote_setbranches_usage[] = {
  51        N_("git remote set-branches <name> <branch>..."),
  52        N_("git remote set-branches --add <name> <branch>..."),
  53        NULL
  54};
  55
  56static const char * const builtin_remote_show_usage[] = {
  57        N_("git remote show [<options>] <name>"),
  58        NULL
  59};
  60
  61static const char * const builtin_remote_prune_usage[] = {
  62        N_("git remote prune [<options>] <name>"),
  63        NULL
  64};
  65
  66static const char * const builtin_remote_update_usage[] = {
  67        N_("git remote update [<options>] [<group> | <remote>]..."),
  68        NULL
  69};
  70
  71static const char * const builtin_remote_geturl_usage[] = {
  72        N_("git remote get-url [--push] [--all] <name>"),
  73        NULL
  74};
  75
  76static const char * const builtin_remote_seturl_usage[] = {
  77        N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
  78        N_("git remote set-url --add <name> <newurl>"),
  79        N_("git remote set-url --delete <name> <url>"),
  80        NULL
  81};
  82
  83#define GET_REF_STATES (1<<0)
  84#define GET_HEAD_NAMES (1<<1)
  85#define GET_PUSH_REF_STATES (1<<2)
  86
  87static int verbose;
  88
  89static int fetch_remote(const char *name)
  90{
  91        const char *argv[] = { "fetch", name, NULL, NULL };
  92        if (verbose) {
  93                argv[1] = "-v";
  94                argv[2] = name;
  95        }
  96        printf_ln(_("Updating %s"), name);
  97        if (run_command_v_opt(argv, RUN_GIT_CMD))
  98                return error(_("Could not fetch %s"), name);
  99        return 0;
 100}
 101
 102enum {
 103        TAGS_UNSET = 0,
 104        TAGS_DEFAULT = 1,
 105        TAGS_SET = 2
 106};
 107
 108#define MIRROR_NONE 0
 109#define MIRROR_FETCH 1
 110#define MIRROR_PUSH 2
 111#define MIRROR_BOTH (MIRROR_FETCH|MIRROR_PUSH)
 112
 113static void add_branch(const char *key, const char *branchname,
 114                       const char *remotename, int mirror, struct strbuf *tmp)
 115{
 116        strbuf_reset(tmp);
 117        strbuf_addch(tmp, '+');
 118        if (mirror)
 119                strbuf_addf(tmp, "refs/%s:refs/%s",
 120                                branchname, branchname);
 121        else
 122                strbuf_addf(tmp, "refs/heads/%s:refs/remotes/%s/%s",
 123                                branchname, remotename, branchname);
 124        git_config_set_multivar(key, tmp->buf, "^$", 0);
 125}
 126
 127static const char mirror_advice[] =
 128N_("--mirror is dangerous and deprecated; please\n"
 129   "\t use --mirror=fetch or --mirror=push instead");
 130
 131static int parse_mirror_opt(const struct option *opt, const char *arg, int not)
 132{
 133        unsigned *mirror = opt->value;
 134        if (not)
 135                *mirror = MIRROR_NONE;
 136        else if (!arg) {
 137                warning("%s", _(mirror_advice));
 138                *mirror = MIRROR_BOTH;
 139        }
 140        else if (!strcmp(arg, "fetch"))
 141                *mirror = MIRROR_FETCH;
 142        else if (!strcmp(arg, "push"))
 143                *mirror = MIRROR_PUSH;
 144        else
 145                return error(_("unknown mirror argument: %s"), arg);
 146        return 0;
 147}
 148
 149static int add(int argc, const char **argv)
 150{
 151        int fetch = 0, fetch_tags = TAGS_DEFAULT;
 152        unsigned mirror = MIRROR_NONE;
 153        struct string_list track = STRING_LIST_INIT_NODUP;
 154        const char *master = NULL;
 155        struct remote *remote;
 156        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
 157        const char *name, *url;
 158        int i;
 159
 160        struct option options[] = {
 161                OPT_BOOL('f', "fetch", &fetch, N_("fetch the remote branches")),
 162                OPT_SET_INT(0, "tags", &fetch_tags,
 163                            N_("import all tags and associated objects when fetching"),
 164                            TAGS_SET),
 165                OPT_SET_INT(0, NULL, &fetch_tags,
 166                            N_("or do not fetch any tag at all (--no-tags)"), TAGS_UNSET),
 167                OPT_STRING_LIST('t', "track", &track, N_("branch"),
 168                                N_("branch(es) to track")),
 169                OPT_STRING('m', "master", &master, N_("branch"), N_("master branch")),
 170                { OPTION_CALLBACK, 0, "mirror", &mirror, N_("push|fetch"),
 171                        N_("set up remote as a mirror to push to or fetch from"),
 172                        PARSE_OPT_OPTARG | PARSE_OPT_COMP_ARG, parse_mirror_opt },
 173                OPT_END()
 174        };
 175
 176        argc = parse_options(argc, argv, NULL, options, builtin_remote_add_usage,
 177                             0);
 178
 179        if (argc != 2)
 180                usage_with_options(builtin_remote_add_usage, options);
 181
 182        if (mirror && master)
 183                die(_("specifying a master branch makes no sense with --mirror"));
 184        if (mirror && !(mirror & MIRROR_FETCH) && track.nr)
 185                die(_("specifying branches to track makes sense only with fetch mirrors"));
 186
 187        name = argv[0];
 188        url = argv[1];
 189
 190        remote = remote_get(name);
 191        if (remote_is_configured(remote, 1))
 192                die(_("remote %s already exists."), name);
 193
 194        strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
 195        if (!valid_fetch_refspec(buf2.buf))
 196                die(_("'%s' is not a valid remote name"), name);
 197
 198        strbuf_addf(&buf, "remote.%s.url", name);
 199        git_config_set(buf.buf, url);
 200
 201        if (!mirror || mirror & MIRROR_FETCH) {
 202                strbuf_reset(&buf);
 203                strbuf_addf(&buf, "remote.%s.fetch", name);
 204                if (track.nr == 0)
 205                        string_list_append(&track, "*");
 206                for (i = 0; i < track.nr; i++) {
 207                        add_branch(buf.buf, track.items[i].string,
 208                                   name, mirror, &buf2);
 209                }
 210        }
 211
 212        if (mirror & MIRROR_PUSH) {
 213                strbuf_reset(&buf);
 214                strbuf_addf(&buf, "remote.%s.mirror", name);
 215                git_config_set(buf.buf, "true");
 216        }
 217
 218        if (fetch_tags != TAGS_DEFAULT) {
 219                strbuf_reset(&buf);
 220                strbuf_addf(&buf, "remote.%s.tagopt", name);
 221                git_config_set(buf.buf,
 222                               fetch_tags == TAGS_SET ? "--tags" : "--no-tags");
 223        }
 224
 225        if (fetch && fetch_remote(name))
 226                return 1;
 227
 228        if (master) {
 229                strbuf_reset(&buf);
 230                strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
 231
 232                strbuf_reset(&buf2);
 233                strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
 234
 235                if (create_symref(buf.buf, buf2.buf, "remote add"))
 236                        return error(_("Could not setup master '%s'"), master);
 237        }
 238
 239        strbuf_release(&buf);
 240        strbuf_release(&buf2);
 241        string_list_clear(&track, 0);
 242
 243        return 0;
 244}
 245
 246struct branch_info {
 247        char *remote_name;
 248        struct string_list merge;
 249        enum {
 250                NO_REBASE, NORMAL_REBASE, INTERACTIVE_REBASE, REBASE_MERGES
 251        } rebase;
 252};
 253
 254static struct string_list branch_list = STRING_LIST_INIT_NODUP;
 255
 256static const char *abbrev_ref(const char *name, const char *prefix)
 257{
 258        skip_prefix(name, prefix, &name);
 259        return name;
 260}
 261#define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 262
 263static int config_read_branches(const char *key, const char *value, void *cb)
 264{
 265        if (starts_with(key, "branch.")) {
 266                const char *orig_key = key;
 267                char *name;
 268                struct string_list_item *item;
 269                struct branch_info *info;
 270                enum { REMOTE, MERGE, REBASE } type;
 271                size_t key_len;
 272
 273                key += 7;
 274                if (strip_suffix(key, ".remote", &key_len)) {
 275                        name = xmemdupz(key, key_len);
 276                        type = REMOTE;
 277                } else if (strip_suffix(key, ".merge", &key_len)) {
 278                        name = xmemdupz(key, key_len);
 279                        type = MERGE;
 280                } else if (strip_suffix(key, ".rebase", &key_len)) {
 281                        name = xmemdupz(key, key_len);
 282                        type = REBASE;
 283                } else
 284                        return 0;
 285
 286                item = string_list_insert(&branch_list, name);
 287
 288                if (!item->util)
 289                        item->util = xcalloc(1, sizeof(struct branch_info));
 290                info = item->util;
 291                if (type == REMOTE) {
 292                        if (info->remote_name)
 293                                warning(_("more than one %s"), orig_key);
 294                        info->remote_name = xstrdup(value);
 295                } else if (type == MERGE) {
 296                        char *space = strchr(value, ' ');
 297                        value = abbrev_branch(value);
 298                        while (space) {
 299                                char *merge;
 300                                merge = xstrndup(value, space - value);
 301                                string_list_append(&info->merge, merge);
 302                                value = abbrev_branch(space + 1);
 303                                space = strchr(value, ' ');
 304                        }
 305                        string_list_append(&info->merge, xstrdup(value));
 306                } else {
 307                        int v = git_parse_maybe_bool(value);
 308                        if (v >= 0)
 309                                info->rebase = v;
 310                        else if (!strcmp(value, "preserve"))
 311                                info->rebase = NORMAL_REBASE;
 312                        else if (!strcmp(value, "merges"))
 313                                info->rebase = REBASE_MERGES;
 314                        else if (!strcmp(value, "interactive"))
 315                                info->rebase = INTERACTIVE_REBASE;
 316                }
 317        }
 318        return 0;
 319}
 320
 321static void read_branches(void)
 322{
 323        if (branch_list.nr)
 324                return;
 325        git_config(config_read_branches, NULL);
 326}
 327
 328struct ref_states {
 329        struct remote *remote;
 330        struct string_list new_refs, stale, tracked, heads, push;
 331        int queried;
 332};
 333
 334static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 335{
 336        struct ref *fetch_map = NULL, **tail = &fetch_map;
 337        struct ref *ref, *stale_refs;
 338        int i;
 339
 340        for (i = 0; i < states->remote->fetch.nr; i++)
 341                if (get_fetch_map(remote_refs, &states->remote->fetch.items[i], &tail, 1))
 342                        die(_("Could not get fetch map for refspec %s"),
 343                                states->remote->fetch.raw[i]);
 344
 345        states->new_refs.strdup_strings = 1;
 346        states->tracked.strdup_strings = 1;
 347        states->stale.strdup_strings = 1;
 348        for (ref = fetch_map; ref; ref = ref->next) {
 349                if (!ref->peer_ref || !ref_exists(ref->peer_ref->name))
 350                        string_list_append(&states->new_refs, abbrev_branch(ref->name));
 351                else
 352                        string_list_append(&states->tracked, abbrev_branch(ref->name));
 353        }
 354        stale_refs = get_stale_heads(&states->remote->fetch, fetch_map);
 355        for (ref = stale_refs; ref; ref = ref->next) {
 356                struct string_list_item *item =
 357                        string_list_append(&states->stale, abbrev_branch(ref->name));
 358                item->util = xstrdup(ref->name);
 359        }
 360        free_refs(stale_refs);
 361        free_refs(fetch_map);
 362
 363        string_list_sort(&states->new_refs);
 364        string_list_sort(&states->tracked);
 365        string_list_sort(&states->stale);
 366
 367        return 0;
 368}
 369
 370struct push_info {
 371        char *dest;
 372        int forced;
 373        enum {
 374                PUSH_STATUS_CREATE = 0,
 375                PUSH_STATUS_DELETE,
 376                PUSH_STATUS_UPTODATE,
 377                PUSH_STATUS_FASTFORWARD,
 378                PUSH_STATUS_OUTOFDATE,
 379                PUSH_STATUS_NOTQUERIED
 380        } status;
 381};
 382
 383static int get_push_ref_states(const struct ref *remote_refs,
 384        struct ref_states *states)
 385{
 386        struct remote *remote = states->remote;
 387        struct ref *ref, *local_refs, *push_map;
 388        if (remote->mirror)
 389                return 0;
 390
 391        local_refs = get_local_heads();
 392        push_map = copy_ref_list(remote_refs);
 393
 394        match_push_refs(local_refs, &push_map, &remote->push, MATCH_REFS_NONE);
 395
 396        states->push.strdup_strings = 1;
 397        for (ref = push_map; ref; ref = ref->next) {
 398                struct string_list_item *item;
 399                struct push_info *info;
 400
 401                if (!ref->peer_ref)
 402                        continue;
 403                oidcpy(&ref->new_oid, &ref->peer_ref->new_oid);
 404
 405                item = string_list_append(&states->push,
 406                                          abbrev_branch(ref->peer_ref->name));
 407                item->util = xcalloc(1, sizeof(struct push_info));
 408                info = item->util;
 409                info->forced = ref->force;
 410                info->dest = xstrdup(abbrev_branch(ref->name));
 411
 412                if (is_null_oid(&ref->new_oid)) {
 413                        info->status = PUSH_STATUS_DELETE;
 414                } else if (!oidcmp(&ref->old_oid, &ref->new_oid))
 415                        info->status = PUSH_STATUS_UPTODATE;
 416                else if (is_null_oid(&ref->old_oid))
 417                        info->status = PUSH_STATUS_CREATE;
 418                else if (has_object_file(&ref->old_oid) &&
 419                         ref_newer(&ref->new_oid, &ref->old_oid))
 420                        info->status = PUSH_STATUS_FASTFORWARD;
 421                else
 422                        info->status = PUSH_STATUS_OUTOFDATE;
 423        }
 424        free_refs(local_refs);
 425        free_refs(push_map);
 426        return 0;
 427}
 428
 429static int get_push_ref_states_noquery(struct ref_states *states)
 430{
 431        int i;
 432        struct remote *remote = states->remote;
 433        struct string_list_item *item;
 434        struct push_info *info;
 435
 436        if (remote->mirror)
 437                return 0;
 438
 439        states->push.strdup_strings = 1;
 440        if (!remote->push.nr) {
 441                item = string_list_append(&states->push, _("(matching)"));
 442                info = item->util = xcalloc(1, sizeof(struct push_info));
 443                info->status = PUSH_STATUS_NOTQUERIED;
 444                info->dest = xstrdup(item->string);
 445        }
 446        for (i = 0; i < remote->push.nr; i++) {
 447                const struct refspec_item *spec = &remote->push.items[i];
 448                if (spec->matching)
 449                        item = string_list_append(&states->push, _("(matching)"));
 450                else if (strlen(spec->src))
 451                        item = string_list_append(&states->push, spec->src);
 452                else
 453                        item = string_list_append(&states->push, _("(delete)"));
 454
 455                info = item->util = xcalloc(1, sizeof(struct push_info));
 456                info->forced = spec->force;
 457                info->status = PUSH_STATUS_NOTQUERIED;
 458                info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 459        }
 460        return 0;
 461}
 462
 463static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 464{
 465        struct ref *ref, *matches;
 466        struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 467        struct refspec_item refspec;
 468
 469        refspec.force = 0;
 470        refspec.pattern = 1;
 471        refspec.src = refspec.dst = "refs/heads/*";
 472        states->heads.strdup_strings = 1;
 473        get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 474        matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 475                                    fetch_map, 1);
 476        for (ref = matches; ref; ref = ref->next)
 477                string_list_append(&states->heads, abbrev_branch(ref->name));
 478
 479        free_refs(fetch_map);
 480        free_refs(matches);
 481
 482        return 0;
 483}
 484
 485struct known_remote {
 486        struct known_remote *next;
 487        struct remote *remote;
 488};
 489
 490struct known_remotes {
 491        struct remote *to_delete;
 492        struct known_remote *list;
 493};
 494
 495static int add_known_remote(struct remote *remote, void *cb_data)
 496{
 497        struct known_remotes *all = cb_data;
 498        struct known_remote *r;
 499
 500        if (!strcmp(all->to_delete->name, remote->name))
 501                return 0;
 502
 503        r = xmalloc(sizeof(*r));
 504        r->remote = remote;
 505        r->next = all->list;
 506        all->list = r;
 507        return 0;
 508}
 509
 510struct branches_for_remote {
 511        struct remote *remote;
 512        struct string_list *branches, *skipped;
 513        struct known_remotes *keep;
 514};
 515
 516static int add_branch_for_removal(const char *refname,
 517        const struct object_id *oid, int flags, void *cb_data)
 518{
 519        struct branches_for_remote *branches = cb_data;
 520        struct refspec_item refspec;
 521        struct known_remote *kr;
 522
 523        memset(&refspec, 0, sizeof(refspec));
 524        refspec.dst = (char *)refname;
 525        if (remote_find_tracking(branches->remote, &refspec))
 526                return 0;
 527
 528        /* don't delete a branch if another remote also uses it */
 529        for (kr = branches->keep->list; kr; kr = kr->next) {
 530                memset(&refspec, 0, sizeof(refspec));
 531                refspec.dst = (char *)refname;
 532                if (!remote_find_tracking(kr->remote, &refspec))
 533                        return 0;
 534        }
 535
 536        /* don't delete non-remote-tracking refs */
 537        if (!starts_with(refname, "refs/remotes/")) {
 538                /* advise user how to delete local branches */
 539                if (starts_with(refname, "refs/heads/"))
 540                        string_list_append(branches->skipped,
 541                                           abbrev_branch(refname));
 542                /* silently skip over other non-remote refs */
 543                return 0;
 544        }
 545
 546        string_list_append(branches->branches, refname);
 547
 548        return 0;
 549}
 550
 551struct rename_info {
 552        const char *old_name;
 553        const char *new_name;
 554        struct string_list *remote_branches;
 555};
 556
 557static int read_remote_branches(const char *refname,
 558        const struct object_id *oid, int flags, void *cb_data)
 559{
 560        struct rename_info *rename = cb_data;
 561        struct strbuf buf = STRBUF_INIT;
 562        struct string_list_item *item;
 563        int flag;
 564        const char *symref;
 565
 566        strbuf_addf(&buf, "refs/remotes/%s/", rename->old_name);
 567        if (starts_with(refname, buf.buf)) {
 568                item = string_list_append(rename->remote_branches, xstrdup(refname));
 569                symref = resolve_ref_unsafe(refname, RESOLVE_REF_READING,
 570                                            NULL, &flag);
 571                if (symref && (flag & REF_ISSYMREF))
 572                        item->util = xstrdup(symref);
 573                else
 574                        item->util = NULL;
 575        }
 576        strbuf_release(&buf);
 577
 578        return 0;
 579}
 580
 581static int migrate_file(struct remote *remote)
 582{
 583        struct strbuf buf = STRBUF_INIT;
 584        int i;
 585
 586        strbuf_addf(&buf, "remote.%s.url", remote->name);
 587        for (i = 0; i < remote->url_nr; i++)
 588                git_config_set_multivar(buf.buf, remote->url[i], "^$", 0);
 589        strbuf_reset(&buf);
 590        strbuf_addf(&buf, "remote.%s.push", remote->name);
 591        for (i = 0; i < remote->push.raw_nr; i++)
 592                git_config_set_multivar(buf.buf, remote->push.raw[i], "^$", 0);
 593        strbuf_reset(&buf);
 594        strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 595        for (i = 0; i < remote->fetch.raw_nr; i++)
 596                git_config_set_multivar(buf.buf, remote->fetch.raw[i], "^$", 0);
 597        if (remote->origin == REMOTE_REMOTES)
 598                unlink_or_warn(git_path("remotes/%s", remote->name));
 599        else if (remote->origin == REMOTE_BRANCHES)
 600                unlink_or_warn(git_path("branches/%s", remote->name));
 601        strbuf_release(&buf);
 602
 603        return 0;
 604}
 605
 606static 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_name = argv[1];
 622        rename.new_name = argv[2];
 623        rename.remote_branches = &remote_branches;
 624
 625        oldremote = remote_get(rename.old_name);
 626        if (!remote_is_configured(oldremote, 1))
 627                die(_("No such remote: %s"), rename.old_name);
 628
 629        if (!strcmp(rename.old_name, rename.new_name) && oldremote->origin != REMOTE_CONFIG)
 630                return migrate_file(oldremote);
 631
 632        newremote = remote_get(rename.new_name);
 633        if (remote_is_configured(newremote, 1))
 634                die(_("remote %s already exists."), rename.new_name);
 635
 636        strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new_name);
 637        if (!valid_fetch_refspec(buf.buf))
 638                die(_("'%s' is not a valid remote name"), rename.new_name);
 639
 640        strbuf_reset(&buf);
 641        strbuf_addf(&buf, "remote.%s", rename.old_name);
 642        strbuf_addf(&buf2, "remote.%s", rename.new_name);
 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_name);
 649        git_config_set_multivar(buf.buf, NULL, NULL, 1);
 650        strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old_name);
 651        for (i = 0; i < oldremote->fetch.raw_nr; i++) {
 652                char *ptr;
 653
 654                strbuf_reset(&buf2);
 655                strbuf_addstr(&buf2, oldremote->fetch.raw[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_name), rename.new_name,
 662                                      strlen(rename.new_name));
 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_name)) {
 677                        strbuf_reset(&buf);
 678                        strbuf_addf(&buf, "branch.%s.remote", item->string);
 679                        git_config_set(buf.buf, rename.new_name);
 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, &flag);
 697                if (!(flag & REF_ISSYMREF))
 698                        continue;
 699                if (delete_ref(NULL, item->string, NULL, REF_NO_DEREF))
 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_name),
 710                                rename.new_name, strlen(rename.new_name));
 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_name),
 725                                rename.new_name, strlen(rename.new_name));
 726                strbuf_reset(&buf2);
 727                strbuf_addstr(&buf2, item->util);
 728                strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old_name),
 729                                rename.new_name, strlen(rename.new_name));
 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
 739static 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_is_configured(remote, 1))
 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                                result = git_config_set_gently(buf.buf, NULL);
 778                                if (result && result != CONFIG_NOTHING_SET)
 779                                        die(_("could not unset '%s'"), buf.buf);
 780                        }
 781                }
 782        }
 783
 784        /*
 785         * We cannot just pass a function to for_each_ref() which deletes
 786         * the branches one by one, since for_each_ref() relies on cached
 787         * refs, which are invalidated when deleting a branch.
 788         */
 789        cb_data.remote = remote;
 790        result = for_each_ref(add_branch_for_removal, &cb_data);
 791        strbuf_release(&buf);
 792
 793        if (!result)
 794                result = delete_refs("remote: remove", &branches, REF_NO_DEREF);
 795        string_list_clear(&branches, 0);
 796
 797        if (skipped.nr) {
 798                fprintf_ln(stderr,
 799                           Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 800                              "to delete it, use:",
 801                              "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 802                              "to delete them, use:",
 803                              skipped.nr));
 804                for (i = 0; i < skipped.nr; i++)
 805                        fprintf(stderr, "  git branch -d %s\n",
 806                                skipped.items[i].string);
 807        }
 808        string_list_clear(&skipped, 0);
 809
 810        if (!result) {
 811                strbuf_addf(&buf, "remote.%s", remote->name);
 812                if (git_config_rename_section(buf.buf, NULL) < 1)
 813                        return error(_("Could not remove config section '%s'"), buf.buf);
 814        }
 815
 816        return result;
 817}
 818
 819static void clear_push_info(void *util, const char *string)
 820{
 821        struct push_info *info = util;
 822        free(info->dest);
 823        free(info);
 824}
 825
 826static void free_remote_ref_states(struct ref_states *states)
 827{
 828        string_list_clear(&states->new_refs, 0);
 829        string_list_clear(&states->stale, 1);
 830        string_list_clear(&states->tracked, 0);
 831        string_list_clear(&states->heads, 0);
 832        string_list_clear_func(&states->push, clear_push_info);
 833}
 834
 835static int append_ref_to_tracked_list(const char *refname,
 836        const struct object_id *oid, int flags, void *cb_data)
 837{
 838        struct ref_states *states = cb_data;
 839        struct refspec_item refspec;
 840
 841        if (flags & REF_ISSYMREF)
 842                return 0;
 843
 844        memset(&refspec, 0, sizeof(refspec));
 845        refspec.dst = (char *)refname;
 846        if (!remote_find_tracking(states->remote, &refspec))
 847                string_list_append(&states->tracked, abbrev_branch(refspec.src));
 848
 849        return 0;
 850}
 851
 852static int get_remote_ref_states(const char *name,
 853                                 struct ref_states *states,
 854                                 int query)
 855{
 856        struct transport *transport;
 857        const struct ref *remote_refs;
 858
 859        states->remote = remote_get(name);
 860        if (!states->remote)
 861                return error(_("No such remote: %s"), name);
 862
 863        read_branches();
 864
 865        if (query) {
 866                transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 867                        states->remote->url[0] : NULL);
 868                remote_refs = transport_get_remote_refs(transport, NULL);
 869                transport_disconnect(transport);
 870
 871                states->queried = 1;
 872                if (query & GET_REF_STATES)
 873                        get_ref_states(remote_refs, states);
 874                if (query & GET_HEAD_NAMES)
 875                        get_head_names(remote_refs, states);
 876                if (query & GET_PUSH_REF_STATES)
 877                        get_push_ref_states(remote_refs, states);
 878        } else {
 879                for_each_ref(append_ref_to_tracked_list, states);
 880                string_list_sort(&states->tracked);
 881                get_push_ref_states_noquery(states);
 882        }
 883
 884        return 0;
 885}
 886
 887struct show_info {
 888        struct string_list *list;
 889        struct ref_states *states;
 890        int width, width2;
 891        int any_rebase;
 892};
 893
 894static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 895{
 896        struct show_info *info = cb_data;
 897        int n = strlen(item->string);
 898        if (n > info->width)
 899                info->width = n;
 900        string_list_insert(info->list, item->string);
 901        return 0;
 902}
 903
 904static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 905{
 906        struct show_info *info = cb_data;
 907        struct ref_states *states = info->states;
 908        const char *name = item->string;
 909
 910        if (states->queried) {
 911                const char *fmt = "%s";
 912                const char *arg = "";
 913                if (string_list_has_string(&states->new_refs, name)) {
 914                        fmt = _(" new (next fetch will store in remotes/%s)");
 915                        arg = states->remote->name;
 916                } else if (string_list_has_string(&states->tracked, name))
 917                        arg = _(" tracked");
 918                else if (string_list_has_string(&states->stale, name))
 919                        arg = _(" stale (use 'git remote prune' to remove)");
 920                else
 921                        arg = _(" ???");
 922                printf("    %-*s", info->width, name);
 923                printf(fmt, arg);
 924                printf("\n");
 925        } else
 926                printf("    %s\n", name);
 927
 928        return 0;
 929}
 930
 931static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 932{
 933        struct show_info *show_info = cb_data;
 934        struct ref_states *states = show_info->states;
 935        struct branch_info *branch_info = branch_item->util;
 936        struct string_list_item *item;
 937        int n;
 938
 939        if (!branch_info->merge.nr || !branch_info->remote_name ||
 940            strcmp(states->remote->name, branch_info->remote_name))
 941                return 0;
 942        if ((n = strlen(branch_item->string)) > show_info->width)
 943                show_info->width = n;
 944        if (branch_info->rebase)
 945                show_info->any_rebase = 1;
 946
 947        item = string_list_insert(show_info->list, branch_item->string);
 948        item->util = branch_info;
 949
 950        return 0;
 951}
 952
 953static int show_local_info_item(struct string_list_item *item, void *cb_data)
 954{
 955        struct show_info *show_info = cb_data;
 956        struct branch_info *branch_info = item->util;
 957        struct string_list *merge = &branch_info->merge;
 958        int width = show_info->width + 4;
 959        int i;
 960
 961        if (branch_info->rebase && branch_info->merge.nr > 1) {
 962                error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"),
 963                        item->string);
 964                return 0;
 965        }
 966
 967        printf("    %-*s ", show_info->width, item->string);
 968        if (branch_info->rebase) {
 969                const char *msg;
 970                if (branch_info->rebase == INTERACTIVE_REBASE)
 971                        msg = _("rebases interactively onto remote %s");
 972                else if (branch_info->rebase == REBASE_MERGES)
 973                        msg = _("rebases interactively (with merges) onto "
 974                                "remote %s");
 975                else
 976                        msg = _("rebases onto remote %s");
 977                printf_ln(msg, merge->items[0].string);
 978                return 0;
 979        } else if (show_info->any_rebase) {
 980                printf_ln(_(" merges with remote %s"), merge->items[0].string);
 981                width++;
 982        } else {
 983                printf_ln(_("merges with remote %s"), merge->items[0].string);
 984        }
 985        for (i = 1; i < merge->nr; i++)
 986                printf(_("%-*s    and with remote %s\n"), width, "",
 987                       merge->items[i].string);
 988
 989        return 0;
 990}
 991
 992static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
 993{
 994        struct show_info *show_info = cb_data;
 995        struct push_info *push_info = push_item->util;
 996        struct string_list_item *item;
 997        int n;
 998        if ((n = strlen(push_item->string)) > show_info->width)
 999                show_info->width = n;
1000        if ((n = strlen(push_info->dest)) > show_info->width2)
1001                show_info->width2 = n;
1002        item = string_list_append(show_info->list, push_item->string);
1003        item->util = push_item->util;
1004        return 0;
1005}
1006
1007/*
1008 * Sorting comparison for a string list that has push_info
1009 * structs in its util field
1010 */
1011static int cmp_string_with_push(const void *va, const void *vb)
1012{
1013        const struct string_list_item *a = va;
1014        const struct string_list_item *b = vb;
1015        const struct push_info *a_push = a->util;
1016        const struct push_info *b_push = b->util;
1017        int cmp = strcmp(a->string, b->string);
1018        return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1019}
1020
1021static int show_push_info_item(struct string_list_item *item, void *cb_data)
1022{
1023        struct show_info *show_info = cb_data;
1024        struct push_info *push_info = item->util;
1025        const char *src = item->string, *status = NULL;
1026
1027        switch (push_info->status) {
1028        case PUSH_STATUS_CREATE:
1029                status = _("create");
1030                break;
1031        case PUSH_STATUS_DELETE:
1032                status = _("delete");
1033                src = _("(none)");
1034                break;
1035        case PUSH_STATUS_UPTODATE:
1036                status = _("up to date");
1037                break;
1038        case PUSH_STATUS_FASTFORWARD:
1039                status = _("fast-forwardable");
1040                break;
1041        case PUSH_STATUS_OUTOFDATE:
1042                status = _("local out of date");
1043                break;
1044        case PUSH_STATUS_NOTQUERIED:
1045                break;
1046        }
1047        if (status) {
1048                if (push_info->forced)
1049                        printf_ln(_("    %-*s forces to %-*s (%s)"), show_info->width, src,
1050                               show_info->width2, push_info->dest, status);
1051                else
1052                        printf_ln(_("    %-*s pushes to %-*s (%s)"), show_info->width, src,
1053                               show_info->width2, push_info->dest, status);
1054        } else {
1055                if (push_info->forced)
1056                        printf_ln(_("    %-*s forces to %s"), show_info->width, src,
1057                               push_info->dest);
1058                else
1059                        printf_ln(_("    %-*s pushes to %s"), show_info->width, src,
1060                               push_info->dest);
1061        }
1062        return 0;
1063}
1064
1065static int get_one_entry(struct remote *remote, void *priv)
1066{
1067        struct string_list *list = priv;
1068        struct strbuf url_buf = STRBUF_INIT;
1069        const char **url;
1070        int i, url_nr;
1071
1072        if (remote->url_nr > 0) {
1073                strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1074                string_list_append(list, remote->name)->util =
1075                                strbuf_detach(&url_buf, NULL);
1076        } else
1077                string_list_append(list, remote->name)->util = NULL;
1078        if (remote->pushurl_nr) {
1079                url = remote->pushurl;
1080                url_nr = remote->pushurl_nr;
1081        } else {
1082                url = remote->url;
1083                url_nr = remote->url_nr;
1084        }
1085        for (i = 0; i < url_nr; i++)
1086        {
1087                strbuf_addf(&url_buf, "%s (push)", url[i]);
1088                string_list_append(list, remote->name)->util =
1089                                strbuf_detach(&url_buf, NULL);
1090        }
1091
1092        return 0;
1093}
1094
1095static int show_all(void)
1096{
1097        struct string_list list = STRING_LIST_INIT_NODUP;
1098        int result;
1099
1100        list.strdup_strings = 1;
1101        result = for_each_remote(get_one_entry, &list);
1102
1103        if (!result) {
1104                int i;
1105
1106                string_list_sort(&list);
1107                for (i = 0; i < list.nr; i++) {
1108                        struct string_list_item *item = list.items + i;
1109                        if (verbose)
1110                                printf("%s\t%s\n", item->string,
1111                                        item->util ? (const char *)item->util : "");
1112                        else {
1113                                if (i && !strcmp((item - 1)->string, item->string))
1114                                        continue;
1115                                printf("%s\n", item->string);
1116                        }
1117                }
1118        }
1119        string_list_clear(&list, 1);
1120        return result;
1121}
1122
1123static int show(int argc, const char **argv)
1124{
1125        int no_query = 0, result = 0, query_flag = 0;
1126        struct option options[] = {
1127                OPT_BOOL('n', NULL, &no_query, N_("do not query remotes")),
1128                OPT_END()
1129        };
1130        struct ref_states states;
1131        struct string_list info_list = STRING_LIST_INIT_NODUP;
1132        struct show_info info;
1133
1134        argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1135                             0);
1136
1137        if (argc < 1)
1138                return show_all();
1139
1140        if (!no_query)
1141                query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1142
1143        memset(&states, 0, sizeof(states));
1144        memset(&info, 0, sizeof(info));
1145        info.states = &states;
1146        info.list = &info_list;
1147        for (; argc; argc--, argv++) {
1148                int i;
1149                const char **url;
1150                int url_nr;
1151
1152                get_remote_ref_states(*argv, &states, query_flag);
1153
1154                printf_ln(_("* remote %s"), *argv);
1155                printf_ln(_("  Fetch URL: %s"), states.remote->url_nr > 0 ?
1156                       states.remote->url[0] : _("(no URL)"));
1157                if (states.remote->pushurl_nr) {
1158                        url = states.remote->pushurl;
1159                        url_nr = states.remote->pushurl_nr;
1160                } else {
1161                        url = states.remote->url;
1162                        url_nr = states.remote->url_nr;
1163                }
1164                for (i = 0; i < url_nr; i++)
1165                        /*
1166                         * TRANSLATORS: the colon ':' should align
1167                         * with the one in " Fetch URL: %s"
1168                         * translation.
1169                         */
1170                        printf_ln(_("  Push  URL: %s"), url[i]);
1171                if (!i)
1172                        printf_ln(_("  Push  URL: %s"), _("(no URL)"));
1173                if (no_query)
1174                        printf_ln(_("  HEAD branch: %s"), _("(not queried)"));
1175                else if (!states.heads.nr)
1176                        printf_ln(_("  HEAD branch: %s"), _("(unknown)"));
1177                else if (states.heads.nr == 1)
1178                        printf_ln(_("  HEAD branch: %s"), states.heads.items[0].string);
1179                else {
1180                        printf(_("  HEAD branch (remote HEAD is ambiguous,"
1181                                 " may be one of the following):\n"));
1182                        for (i = 0; i < states.heads.nr; i++)
1183                                printf("    %s\n", states.heads.items[i].string);
1184                }
1185
1186                /* remote branch info */
1187                info.width = 0;
1188                for_each_string_list(&states.new_refs, add_remote_to_show_info, &info);
1189                for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1190                for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1191                if (info.list->nr)
1192                        printf_ln(Q_("  Remote branch:%s",
1193                                     "  Remote branches:%s",
1194                                     info.list->nr),
1195                                  no_query ? _(" (status not queried)") : "");
1196                for_each_string_list(info.list, show_remote_info_item, &info);
1197                string_list_clear(info.list, 0);
1198
1199                /* git pull info */
1200                info.width = 0;
1201                info.any_rebase = 0;
1202                for_each_string_list(&branch_list, add_local_to_show_info, &info);
1203                if (info.list->nr)
1204                        printf_ln(Q_("  Local branch configured for 'git pull':",
1205                                     "  Local branches configured for 'git pull':",
1206                                     info.list->nr));
1207                for_each_string_list(info.list, show_local_info_item, &info);
1208                string_list_clear(info.list, 0);
1209
1210                /* git push info */
1211                if (states.remote->mirror)
1212                        printf_ln(_("  Local refs will be mirrored by 'git push'"));
1213
1214                info.width = info.width2 = 0;
1215                for_each_string_list(&states.push, add_push_to_show_info, &info);
1216                QSORT(info.list->items, info.list->nr, cmp_string_with_push);
1217                if (info.list->nr)
1218                        printf_ln(Q_("  Local ref configured for 'git push'%s:",
1219                                     "  Local refs configured for 'git push'%s:",
1220                                     info.list->nr),
1221                                  no_query ? _(" (status not queried)") : "");
1222                for_each_string_list(info.list, show_push_info_item, &info);
1223                string_list_clear(info.list, 0);
1224
1225                free_remote_ref_states(&states);
1226        }
1227
1228        return result;
1229}
1230
1231static int set_head(int argc, const char **argv)
1232{
1233        int i, opt_a = 0, opt_d = 0, result = 0;
1234        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1235        char *head_name = NULL;
1236
1237        struct option options[] = {
1238                OPT_BOOL('a', "auto", &opt_a,
1239                         N_("set refs/remotes/<name>/HEAD according to remote")),
1240                OPT_BOOL('d', "delete", &opt_d,
1241                         N_("delete refs/remotes/<name>/HEAD")),
1242                OPT_END()
1243        };
1244        argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1245                             0);
1246        if (argc)
1247                strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1248
1249        if (!opt_a && !opt_d && argc == 2) {
1250                head_name = xstrdup(argv[1]);
1251        } else if (opt_a && !opt_d && argc == 1) {
1252                struct ref_states states;
1253                memset(&states, 0, sizeof(states));
1254                get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1255                if (!states.heads.nr)
1256                        result |= error(_("Cannot determine remote HEAD"));
1257                else if (states.heads.nr > 1) {
1258                        result |= error(_("Multiple remote HEAD branches. "
1259                                          "Please choose one explicitly with:"));
1260                        for (i = 0; i < states.heads.nr; i++)
1261                                fprintf(stderr, "  git remote set-head %s %s\n",
1262                                        argv[0], states.heads.items[i].string);
1263                } else
1264                        head_name = xstrdup(states.heads.items[0].string);
1265                free_remote_ref_states(&states);
1266        } else if (opt_d && !opt_a && argc == 1) {
1267                if (delete_ref(NULL, buf.buf, NULL, REF_NO_DEREF))
1268                        result |= error(_("Could not delete %s"), buf.buf);
1269        } else
1270                usage_with_options(builtin_remote_sethead_usage, options);
1271
1272        if (head_name) {
1273                strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1274                /* make sure it's valid */
1275                if (!ref_exists(buf2.buf))
1276                        result |= error(_("Not a valid ref: %s"), buf2.buf);
1277                else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1278                        result |= error(_("Could not setup %s"), buf.buf);
1279                if (opt_a)
1280                        printf("%s/HEAD set to %s\n", argv[0], head_name);
1281                free(head_name);
1282        }
1283
1284        strbuf_release(&buf);
1285        strbuf_release(&buf2);
1286        return result;
1287}
1288
1289static int prune_remote(const char *remote, int dry_run)
1290{
1291        int result = 0;
1292        struct ref_states states;
1293        struct string_list refs_to_prune = STRING_LIST_INIT_NODUP;
1294        struct string_list_item *item;
1295        const char *dangling_msg = dry_run
1296                ? _(" %s will become dangling!")
1297                : _(" %s has become dangling!");
1298
1299        memset(&states, 0, sizeof(states));
1300        get_remote_ref_states(remote, &states, GET_REF_STATES);
1301
1302        if (!states.stale.nr) {
1303                free_remote_ref_states(&states);
1304                return 0;
1305        }
1306
1307        printf_ln(_("Pruning %s"), remote);
1308        printf_ln(_("URL: %s"),
1309                  states.remote->url_nr
1310                  ? states.remote->url[0]
1311                  : _("(no URL)"));
1312
1313        for_each_string_list_item(item, &states.stale)
1314                string_list_append(&refs_to_prune, item->util);
1315        string_list_sort(&refs_to_prune);
1316
1317        if (!dry_run)
1318                result |= delete_refs("remote: prune", &refs_to_prune, 0);
1319
1320        for_each_string_list_item(item, &states.stale) {
1321                const char *refname = item->util;
1322
1323                if (dry_run)
1324                        printf_ln(_(" * [would prune] %s"),
1325                               abbrev_ref(refname, "refs/remotes/"));
1326                else
1327                        printf_ln(_(" * [pruned] %s"),
1328                               abbrev_ref(refname, "refs/remotes/"));
1329        }
1330
1331        warn_dangling_symrefs(stdout, dangling_msg, &refs_to_prune);
1332
1333        string_list_clear(&refs_to_prune, 0);
1334        free_remote_ref_states(&states);
1335        return result;
1336}
1337
1338static int prune(int argc, const char **argv)
1339{
1340        int dry_run = 0, result = 0;
1341        struct option options[] = {
1342                OPT__DRY_RUN(&dry_run, N_("dry run")),
1343                OPT_END()
1344        };
1345
1346        argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1347                             0);
1348
1349        if (argc < 1)
1350                usage_with_options(builtin_remote_prune_usage, options);
1351
1352        for (; argc; argc--, argv++)
1353                result |= prune_remote(*argv, dry_run);
1354
1355        return result;
1356}
1357
1358static int get_remote_default(const char *key, const char *value, void *priv)
1359{
1360        if (strcmp(key, "remotes.default") == 0) {
1361                int *found = priv;
1362                *found = 1;
1363        }
1364        return 0;
1365}
1366
1367static int update(int argc, const char **argv)
1368{
1369        int i, prune = -1;
1370        struct option options[] = {
1371                OPT_BOOL('p', "prune", &prune,
1372                         N_("prune remotes after fetching")),
1373                OPT_END()
1374        };
1375        struct argv_array fetch_argv = ARGV_ARRAY_INIT;
1376        int default_defined = 0;
1377        int retval;
1378
1379        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1380                             PARSE_OPT_KEEP_ARGV0);
1381
1382        argv_array_push(&fetch_argv, "fetch");
1383
1384        if (prune != -1)
1385                argv_array_push(&fetch_argv, prune ? "--prune" : "--no-prune");
1386        if (verbose)
1387                argv_array_push(&fetch_argv, "-v");
1388        argv_array_push(&fetch_argv, "--multiple");
1389        if (argc < 2)
1390                argv_array_push(&fetch_argv, "default");
1391        for (i = 1; i < argc; i++)
1392                argv_array_push(&fetch_argv, argv[i]);
1393
1394        if (strcmp(fetch_argv.argv[fetch_argv.argc-1], "default") == 0) {
1395                git_config(get_remote_default, &default_defined);
1396                if (!default_defined) {
1397                        argv_array_pop(&fetch_argv);
1398                        argv_array_push(&fetch_argv, "--all");
1399                }
1400        }
1401
1402        retval = run_command_v_opt(fetch_argv.argv, RUN_GIT_CMD);
1403        argv_array_clear(&fetch_argv);
1404        return retval;
1405}
1406
1407static int remove_all_fetch_refspecs(const char *remote, const char *key)
1408{
1409        return git_config_set_multivar_gently(key, NULL, NULL, 1);
1410}
1411
1412static void add_branches(struct remote *remote, const char **branches,
1413                         const char *key)
1414{
1415        const char *remotename = remote->name;
1416        int mirror = remote->mirror;
1417        struct strbuf refspec = STRBUF_INIT;
1418
1419        for (; *branches; branches++)
1420                add_branch(key, *branches, remotename, mirror, &refspec);
1421
1422        strbuf_release(&refspec);
1423}
1424
1425static int set_remote_branches(const char *remotename, const char **branches,
1426                                int add_mode)
1427{
1428        struct strbuf key = STRBUF_INIT;
1429        struct remote *remote;
1430
1431        strbuf_addf(&key, "remote.%s.fetch", remotename);
1432
1433        remote = remote_get(remotename);
1434        if (!remote_is_configured(remote, 1))
1435                die(_("No such remote '%s'"), remotename);
1436
1437        if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
1438                strbuf_release(&key);
1439                return 1;
1440        }
1441        add_branches(remote, branches, key.buf);
1442
1443        strbuf_release(&key);
1444        return 0;
1445}
1446
1447static int set_branches(int argc, const char **argv)
1448{
1449        int add_mode = 0;
1450        struct option options[] = {
1451                OPT_BOOL('\0', "add", &add_mode, N_("add branch")),
1452                OPT_END()
1453        };
1454
1455        argc = parse_options(argc, argv, NULL, options,
1456                             builtin_remote_setbranches_usage, 0);
1457        if (argc == 0) {
1458                error(_("no remote specified"));
1459                usage_with_options(builtin_remote_setbranches_usage, options);
1460        }
1461        argv[argc] = NULL;
1462
1463        return set_remote_branches(argv[0], argv + 1, add_mode);
1464}
1465
1466static int get_url(int argc, const char **argv)
1467{
1468        int i, push_mode = 0, all_mode = 0;
1469        const char *remotename = NULL;
1470        struct remote *remote;
1471        const char **url;
1472        int url_nr;
1473        struct option options[] = {
1474                OPT_BOOL('\0', "push", &push_mode,
1475                         N_("query push URLs rather than fetch URLs")),
1476                OPT_BOOL('\0', "all", &all_mode,
1477                         N_("return all URLs")),
1478                OPT_END()
1479        };
1480        argc = parse_options(argc, argv, NULL, options, builtin_remote_geturl_usage, 0);
1481
1482        if (argc != 1)
1483                usage_with_options(builtin_remote_geturl_usage, options);
1484
1485        remotename = argv[0];
1486
1487        remote = remote_get(remotename);
1488        if (!remote_is_configured(remote, 1))
1489                die(_("No such remote '%s'"), remotename);
1490
1491        url_nr = 0;
1492        if (push_mode) {
1493                url = remote->pushurl;
1494                url_nr = remote->pushurl_nr;
1495        }
1496        /* else fetch mode */
1497
1498        /* Use the fetch URL when no push URLs were found or requested. */
1499        if (!url_nr) {
1500                url = remote->url;
1501                url_nr = remote->url_nr;
1502        }
1503
1504        if (!url_nr)
1505                die(_("no URLs configured for remote '%s'"), remotename);
1506
1507        if (all_mode) {
1508                for (i = 0; i < url_nr; i++)
1509                        printf_ln("%s", url[i]);
1510        } else {
1511                printf_ln("%s", *url);
1512        }
1513
1514        return 0;
1515}
1516
1517static int set_url(int argc, const char **argv)
1518{
1519        int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1520        int matches = 0, negative_matches = 0;
1521        const char *remotename = NULL;
1522        const char *newurl = NULL;
1523        const char *oldurl = NULL;
1524        struct remote *remote;
1525        regex_t old_regex;
1526        const char **urlset;
1527        int urlset_nr;
1528        struct strbuf name_buf = STRBUF_INIT;
1529        struct option options[] = {
1530                OPT_BOOL('\0', "push", &push_mode,
1531                         N_("manipulate push URLs")),
1532                OPT_BOOL('\0', "add", &add_mode,
1533                         N_("add URL")),
1534                OPT_BOOL('\0', "delete", &delete_mode,
1535                            N_("delete URLs")),
1536                OPT_END()
1537        };
1538        argc = parse_options(argc, argv, NULL, options, builtin_remote_seturl_usage,
1539                             PARSE_OPT_KEEP_ARGV0);
1540
1541        if (add_mode && delete_mode)
1542                die(_("--add --delete doesn't make sense"));
1543
1544        if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1545                usage_with_options(builtin_remote_seturl_usage, options);
1546
1547        remotename = argv[1];
1548        newurl = argv[2];
1549        if (argc > 3)
1550                oldurl = argv[3];
1551
1552        if (delete_mode)
1553                oldurl = newurl;
1554
1555        remote = remote_get(remotename);
1556        if (!remote_is_configured(remote, 1))
1557                die(_("No such remote '%s'"), remotename);
1558
1559        if (push_mode) {
1560                strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1561                urlset = remote->pushurl;
1562                urlset_nr = remote->pushurl_nr;
1563        } else {
1564                strbuf_addf(&name_buf, "remote.%s.url", remotename);
1565                urlset = remote->url;
1566                urlset_nr = remote->url_nr;
1567        }
1568
1569        /* Special cases that add new entry. */
1570        if ((!oldurl && !delete_mode) || add_mode) {
1571                if (add_mode)
1572                        git_config_set_multivar(name_buf.buf, newurl,
1573                                                       "^$", 0);
1574                else
1575                        git_config_set(name_buf.buf, newurl);
1576                goto out;
1577        }
1578
1579        /* Old URL specified. Demand that one matches. */
1580        if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1581                die(_("Invalid old URL pattern: %s"), oldurl);
1582
1583        for (i = 0; i < urlset_nr; i++)
1584                if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1585                        matches++;
1586                else
1587                        negative_matches++;
1588        if (!delete_mode && !matches)
1589                die(_("No such URL found: %s"), oldurl);
1590        if (delete_mode && !negative_matches && !push_mode)
1591                die(_("Will not delete all non-push URLs"));
1592
1593        regfree(&old_regex);
1594
1595        if (!delete_mode)
1596                git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1597        else
1598                git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1599out:
1600        strbuf_release(&name_buf);
1601        return 0;
1602}
1603
1604int cmd_remote(int argc, const char **argv, const char *prefix)
1605{
1606        struct option options[] = {
1607                OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")),
1608                OPT_END()
1609        };
1610        int result;
1611
1612        argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1613                PARSE_OPT_STOP_AT_NON_OPTION);
1614
1615        if (argc < 1)
1616                result = show_all();
1617        else if (!strcmp(argv[0], "add"))
1618                result = add(argc, argv);
1619        else if (!strcmp(argv[0], "rename"))
1620                result = mv(argc, argv);
1621        else if (!strcmp(argv[0], "rm") || !strcmp(argv[0], "remove"))
1622                result = rm(argc, argv);
1623        else if (!strcmp(argv[0], "set-head"))
1624                result = set_head(argc, argv);
1625        else if (!strcmp(argv[0], "set-branches"))
1626                result = set_branches(argc, argv);
1627        else if (!strcmp(argv[0], "get-url"))
1628                result = get_url(argc, argv);
1629        else if (!strcmp(argv[0], "set-url"))
1630                result = set_url(argc, argv);
1631        else if (!strcmp(argv[0], "show"))
1632                result = show(argc, argv);
1633        else if (!strcmp(argv[0], "prune"))
1634                result = prune(argc, argv);
1635        else if (!strcmp(argv[0], "update"))
1636                result = update(argc, argv);
1637        else {
1638                error(_("Unknown subcommand: %s"), argv[0]);
1639                usage_with_options(builtin_remote_usage, options);
1640        }
1641
1642        return result ? 1 : 0;
1643}