builtin / remote.con commit remote: add get-url subcommand (96f78d3)
   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
  11static 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
  28static const char * const builtin_remote_add_usage[] = {
  29        N_("git remote add [<options>] <name> <url>"),
  30        NULL
  31};
  32
  33static const char * const builtin_remote_rename_usage[] = {
  34        N_("git remote rename <old> <new>"),
  35        NULL
  36};
  37
  38static const char * const builtin_remote_rm_usage[] = {
  39        N_("git remote remove <name>"),
  40        NULL
  41};
  42
  43static const char * const builtin_remote_sethead_usage[] = {
  44        N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
  45        NULL
  46};
  47
  48static 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
  54static const char * const builtin_remote_show_usage[] = {
  55        N_("git remote show [<options>] <name>"),
  56        NULL
  57};
  58
  59static const char * const builtin_remote_prune_usage[] = {
  60        N_("git remote prune [<options>] <name>"),
  61        NULL
  62};
  63
  64static const char * const builtin_remote_update_usage[] = {
  65        N_("git remote update [<options>] [<group> | <remote>]..."),
  66        NULL
  67};
  68
  69static const char * const builtin_remote_geturl_usage[] = {
  70        N_("git remote get-url [--push] [--all] <name>"),
  71        NULL
  72};
  73
  74static 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
  85static int verbose;
  86
  87static 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
 100enum {
 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
 111static int 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        return git_config_set_multivar(key, tmp->buf, "^$", 0);
 123}
 124
 125static const char mirror_advice[] =
 126N_("--mirror is dangerous and deprecated; please\n"
 127   "\t use --mirror=fetch or --mirror=push instead");
 128
 129static 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
 147static 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        if (git_config_set(buf.buf, url))
 201                return 1;
 202
 203        if (!mirror || mirror & MIRROR_FETCH) {
 204                strbuf_reset(&buf);
 205                strbuf_addf(&buf, "remote.%s.fetch", name);
 206                if (track.nr == 0)
 207                        string_list_append(&track, "*");
 208                for (i = 0; i < track.nr; i++) {
 209                        if (add_branch(buf.buf, track.items[i].string,
 210                                       name, mirror, &buf2))
 211                                return 1;
 212                }
 213        }
 214
 215        if (mirror & MIRROR_PUSH) {
 216                strbuf_reset(&buf);
 217                strbuf_addf(&buf, "remote.%s.mirror", name);
 218                if (git_config_set(buf.buf, "true"))
 219                        return 1;
 220        }
 221
 222        if (fetch_tags != TAGS_DEFAULT) {
 223                strbuf_reset(&buf);
 224                strbuf_addf(&buf, "remote.%s.tagopt", name);
 225                if (git_config_set(buf.buf,
 226                        fetch_tags == TAGS_SET ? "--tags" : "--no-tags"))
 227                        return 1;
 228        }
 229
 230        if (fetch && fetch_remote(name))
 231                return 1;
 232
 233        if (master) {
 234                strbuf_reset(&buf);
 235                strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
 236
 237                strbuf_reset(&buf2);
 238                strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
 239
 240                if (create_symref(buf.buf, buf2.buf, "remote add"))
 241                        return error(_("Could not setup master '%s'"), master);
 242        }
 243
 244        strbuf_release(&buf);
 245        strbuf_release(&buf2);
 246        string_list_clear(&track, 0);
 247
 248        return 0;
 249}
 250
 251struct branch_info {
 252        char *remote_name;
 253        struct string_list merge;
 254        int rebase;
 255};
 256
 257static struct string_list branch_list;
 258
 259static const char *abbrev_ref(const char *name, const char *prefix)
 260{
 261        skip_prefix(name, prefix, &name);
 262        return name;
 263}
 264#define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 265
 266static int config_read_branches(const char *key, const char *value, void *cb)
 267{
 268        if (starts_with(key, "branch.")) {
 269                const char *orig_key = key;
 270                char *name;
 271                struct string_list_item *item;
 272                struct branch_info *info;
 273                enum { REMOTE, MERGE, REBASE } type;
 274                size_t key_len;
 275
 276                key += 7;
 277                if (strip_suffix(key, ".remote", &key_len)) {
 278                        name = xmemdupz(key, key_len);
 279                        type = REMOTE;
 280                } else if (strip_suffix(key, ".merge", &key_len)) {
 281                        name = xmemdupz(key, key_len);
 282                        type = MERGE;
 283                } else if (strip_suffix(key, ".rebase", &key_len)) {
 284                        name = xmemdupz(key, key_len);
 285                        type = REBASE;
 286                } else
 287                        return 0;
 288
 289                item = string_list_insert(&branch_list, name);
 290
 291                if (!item->util)
 292                        item->util = xcalloc(1, sizeof(struct branch_info));
 293                info = item->util;
 294                if (type == REMOTE) {
 295                        if (info->remote_name)
 296                                warning(_("more than one %s"), orig_key);
 297                        info->remote_name = xstrdup(value);
 298                } else if (type == MERGE) {
 299                        char *space = strchr(value, ' ');
 300                        value = abbrev_branch(value);
 301                        while (space) {
 302                                char *merge;
 303                                merge = xstrndup(value, space - value);
 304                                string_list_append(&info->merge, merge);
 305                                value = abbrev_branch(space + 1);
 306                                space = strchr(value, ' ');
 307                        }
 308                        string_list_append(&info->merge, xstrdup(value));
 309                } else {
 310                        int v = git_config_maybe_bool(orig_key, value);
 311                        if (v >= 0)
 312                                info->rebase = v;
 313                        else if (!strcmp(value, "preserve"))
 314                                info->rebase = 1;
 315                }
 316        }
 317        return 0;
 318}
 319
 320static void read_branches(void)
 321{
 322        if (branch_list.nr)
 323                return;
 324        git_config(config_read_branches, NULL);
 325}
 326
 327struct ref_states {
 328        struct remote *remote;
 329        struct string_list new, stale, tracked, heads, push;
 330        int queried;
 331};
 332
 333static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 334{
 335        struct ref *fetch_map = NULL, **tail = &fetch_map;
 336        struct ref *ref, *stale_refs;
 337        int i;
 338
 339        for (i = 0; i < states->remote->fetch_refspec_nr; i++)
 340                if (get_fetch_map(remote_refs, states->remote->fetch + i, &tail, 1))
 341                        die(_("Could not get fetch map for refspec %s"),
 342                                states->remote->fetch_refspec[i]);
 343
 344        states->new.strdup_strings = 1;
 345        states->tracked.strdup_strings = 1;
 346        states->stale.strdup_strings = 1;
 347        for (ref = fetch_map; ref; ref = ref->next) {
 348                if (!ref->peer_ref || !ref_exists(ref->peer_ref->name))
 349                        string_list_append(&states->new, abbrev_branch(ref->name));
 350                else
 351                        string_list_append(&states->tracked, abbrev_branch(ref->name));
 352        }
 353        stale_refs = get_stale_heads(states->remote->fetch,
 354                                     states->remote->fetch_refspec_nr, 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);
 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_refspec_nr,
 395                        remote->push_refspec, MATCH_REFS_NONE);
 396
 397        states->push.strdup_strings = 1;
 398        for (ref = push_map; ref; ref = ref->next) {
 399                struct string_list_item *item;
 400                struct push_info *info;
 401
 402                if (!ref->peer_ref)
 403                        continue;
 404                hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
 405
 406                item = string_list_append(&states->push,
 407                                          abbrev_branch(ref->peer_ref->name));
 408                item->util = xcalloc(1, sizeof(struct push_info));
 409                info = item->util;
 410                info->forced = ref->force;
 411                info->dest = xstrdup(abbrev_branch(ref->name));
 412
 413                if (is_null_sha1(ref->new_sha1)) {
 414                        info->status = PUSH_STATUS_DELETE;
 415                } else if (!hashcmp(ref->old_sha1, ref->new_sha1))
 416                        info->status = PUSH_STATUS_UPTODATE;
 417                else if (is_null_sha1(ref->old_sha1))
 418                        info->status = PUSH_STATUS_CREATE;
 419                else if (has_sha1_file(ref->old_sha1) &&
 420                         ref_newer(ref->new_sha1, ref->old_sha1))
 421                        info->status = PUSH_STATUS_FASTFORWARD;
 422                else
 423                        info->status = PUSH_STATUS_OUTOFDATE;
 424        }
 425        free_refs(local_refs);
 426        free_refs(push_map);
 427        return 0;
 428}
 429
 430static int get_push_ref_states_noquery(struct ref_states *states)
 431{
 432        int i;
 433        struct remote *remote = states->remote;
 434        struct string_list_item *item;
 435        struct push_info *info;
 436
 437        if (remote->mirror)
 438                return 0;
 439
 440        states->push.strdup_strings = 1;
 441        if (!remote->push_refspec_nr) {
 442                item = string_list_append(&states->push, _("(matching)"));
 443                info = item->util = xcalloc(1, sizeof(struct push_info));
 444                info->status = PUSH_STATUS_NOTQUERIED;
 445                info->dest = xstrdup(item->string);
 446        }
 447        for (i = 0; i < remote->push_refspec_nr; i++) {
 448                struct refspec *spec = remote->push + i;
 449                if (spec->matching)
 450                        item = string_list_append(&states->push, _("(matching)"));
 451                else if (strlen(spec->src))
 452                        item = string_list_append(&states->push, spec->src);
 453                else
 454                        item = string_list_append(&states->push, _("(delete)"));
 455
 456                info = item->util = xcalloc(1, sizeof(struct push_info));
 457                info->forced = spec->force;
 458                info->status = PUSH_STATUS_NOTQUERIED;
 459                info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 460        }
 461        return 0;
 462}
 463
 464static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 465{
 466        struct ref *ref, *matches;
 467        struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 468        struct refspec refspec;
 469
 470        refspec.force = 0;
 471        refspec.pattern = 1;
 472        refspec.src = refspec.dst = "refs/heads/*";
 473        states->heads.strdup_strings = 1;
 474        get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 475        matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 476                                    fetch_map, 1);
 477        for (ref = matches; ref; ref = ref->next)
 478                string_list_append(&states->heads, abbrev_branch(ref->name));
 479
 480        free_refs(fetch_map);
 481        free_refs(matches);
 482
 483        return 0;
 484}
 485
 486struct known_remote {
 487        struct known_remote *next;
 488        struct remote *remote;
 489};
 490
 491struct known_remotes {
 492        struct remote *to_delete;
 493        struct known_remote *list;
 494};
 495
 496static int add_known_remote(struct remote *remote, void *cb_data)
 497{
 498        struct known_remotes *all = cb_data;
 499        struct known_remote *r;
 500
 501        if (!strcmp(all->to_delete->name, remote->name))
 502                return 0;
 503
 504        r = xmalloc(sizeof(*r));
 505        r->remote = remote;
 506        r->next = all->list;
 507        all->list = r;
 508        return 0;
 509}
 510
 511struct branches_for_remote {
 512        struct remote *remote;
 513        struct string_list *branches, *skipped;
 514        struct known_remotes *keep;
 515};
 516
 517static int add_branch_for_removal(const char *refname,
 518        const struct object_id *oid, int flags, void *cb_data)
 519{
 520        struct branches_for_remote *branches = cb_data;
 521        struct refspec refspec;
 522        struct known_remote *kr;
 523
 524        memset(&refspec, 0, sizeof(refspec));
 525        refspec.dst = (char *)refname;
 526        if (remote_find_tracking(branches->remote, &refspec))
 527                return 0;
 528
 529        /* don't delete a branch if another remote also uses it */
 530        for (kr = branches->keep->list; kr; kr = kr->next) {
 531                memset(&refspec, 0, sizeof(refspec));
 532                refspec.dst = (char *)refname;
 533                if (!remote_find_tracking(kr->remote, &refspec))
 534                        return 0;
 535        }
 536
 537        /* don't delete non-remote-tracking refs */
 538        if (!starts_with(refname, "refs/remotes/")) {
 539                /* advise user how to delete local branches */
 540                if (starts_with(refname, "refs/heads/"))
 541                        string_list_append(branches->skipped,
 542                                           abbrev_branch(refname));
 543                /* silently skip over other non-remote refs */
 544                return 0;
 545        }
 546
 547        /* make sure that symrefs are deleted */
 548        if (flags & REF_ISSYMREF)
 549                return unlink(git_path("%s", refname));
 550
 551        string_list_append(branches->branches, refname);
 552
 553        return 0;
 554}
 555
 556struct rename_info {
 557        const char *old;
 558        const char *new;
 559        struct string_list *remote_branches;
 560};
 561
 562static int read_remote_branches(const char *refname,
 563        const struct object_id *oid, int flags, void *cb_data)
 564{
 565        struct rename_info *rename = cb_data;
 566        struct strbuf buf = STRBUF_INIT;
 567        struct string_list_item *item;
 568        int flag;
 569        struct object_id orig_oid;
 570        const char *symref;
 571
 572        strbuf_addf(&buf, "refs/remotes/%s/", rename->old);
 573        if (starts_with(refname, buf.buf)) {
 574                item = string_list_append(rename->remote_branches, xstrdup(refname));
 575                symref = resolve_ref_unsafe(refname, RESOLVE_REF_READING,
 576                                            orig_oid.hash, &flag);
 577                if (flag & REF_ISSYMREF)
 578                        item->util = xstrdup(symref);
 579                else
 580                        item->util = NULL;
 581        }
 582
 583        return 0;
 584}
 585
 586static int migrate_file(struct remote *remote)
 587{
 588        struct strbuf buf = STRBUF_INIT;
 589        int i;
 590        const char *path = NULL;
 591
 592        strbuf_addf(&buf, "remote.%s.url", remote->name);
 593        for (i = 0; i < remote->url_nr; i++)
 594                if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0))
 595                        return error(_("Could not append '%s' to '%s'"),
 596                                        remote->url[i], buf.buf);
 597        strbuf_reset(&buf);
 598        strbuf_addf(&buf, "remote.%s.push", remote->name);
 599        for (i = 0; i < remote->push_refspec_nr; i++)
 600                if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0))
 601                        return error(_("Could not append '%s' to '%s'"),
 602                                        remote->push_refspec[i], buf.buf);
 603        strbuf_reset(&buf);
 604        strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 605        for (i = 0; i < remote->fetch_refspec_nr; i++)
 606                if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0))
 607                        return error(_("Could not append '%s' to '%s'"),
 608                                        remote->fetch_refspec[i], buf.buf);
 609        if (remote->origin == REMOTE_REMOTES)
 610                path = git_path("remotes/%s", remote->name);
 611        else if (remote->origin == REMOTE_BRANCHES)
 612                path = git_path("branches/%s", remote->name);
 613        if (path)
 614                unlink_or_warn(path);
 615        return 0;
 616}
 617
 618static int mv(int argc, const char **argv)
 619{
 620        struct option options[] = {
 621                OPT_END()
 622        };
 623        struct remote *oldremote, *newremote;
 624        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT,
 625                old_remote_context = STRBUF_INIT;
 626        struct string_list remote_branches = STRING_LIST_INIT_NODUP;
 627        struct rename_info rename;
 628        int i, refspec_updated = 0;
 629
 630        if (argc != 3)
 631                usage_with_options(builtin_remote_rename_usage, options);
 632
 633        rename.old = argv[1];
 634        rename.new = argv[2];
 635        rename.remote_branches = &remote_branches;
 636
 637        oldremote = remote_get(rename.old);
 638        if (!oldremote)
 639                die(_("No such remote: %s"), rename.old);
 640
 641        if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
 642                return migrate_file(oldremote);
 643
 644        newremote = remote_get(rename.new);
 645        if (newremote && (newremote->url_nr > 1 || newremote->fetch_refspec_nr))
 646                die(_("remote %s already exists."), rename.new);
 647
 648        strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
 649        if (!valid_fetch_refspec(buf.buf))
 650                die(_("'%s' is not a valid remote name"), rename.new);
 651
 652        strbuf_reset(&buf);
 653        strbuf_addf(&buf, "remote.%s", rename.old);
 654        strbuf_addf(&buf2, "remote.%s", rename.new);
 655        if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 656                return error(_("Could not rename config section '%s' to '%s'"),
 657                                buf.buf, buf2.buf);
 658
 659        strbuf_reset(&buf);
 660        strbuf_addf(&buf, "remote.%s.fetch", rename.new);
 661        if (git_config_set_multivar(buf.buf, NULL, NULL, 1))
 662                return error(_("Could not remove config section '%s'"), buf.buf);
 663        strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old);
 664        for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 665                char *ptr;
 666
 667                strbuf_reset(&buf2);
 668                strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 669                ptr = strstr(buf2.buf, old_remote_context.buf);
 670                if (ptr) {
 671                        refspec_updated = 1;
 672                        strbuf_splice(&buf2,
 673                                      ptr-buf2.buf + strlen(":refs/remotes/"),
 674                                      strlen(rename.old), rename.new,
 675                                      strlen(rename.new));
 676                } else
 677                        warning(_("Not updating non-default fetch refspec\n"
 678                                  "\t%s\n"
 679                                  "\tPlease update the configuration manually if necessary."),
 680                                buf2.buf);
 681
 682                if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 683                        return error(_("Could not append '%s'"), buf.buf);
 684        }
 685
 686        read_branches();
 687        for (i = 0; i < branch_list.nr; i++) {
 688                struct string_list_item *item = branch_list.items + i;
 689                struct branch_info *info = item->util;
 690                if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 691                        strbuf_reset(&buf);
 692                        strbuf_addf(&buf, "branch.%s.remote", item->string);
 693                        if (git_config_set(buf.buf, rename.new)) {
 694                                return error(_("Could not set '%s'"), buf.buf);
 695                        }
 696                }
 697        }
 698
 699        if (!refspec_updated)
 700                return 0;
 701
 702        /*
 703         * First remove symrefs, then rename the rest, finally create
 704         * the new symrefs.
 705         */
 706        for_each_ref(read_remote_branches, &rename);
 707        for (i = 0; i < remote_branches.nr; i++) {
 708                struct string_list_item *item = remote_branches.items + i;
 709                int flag = 0;
 710                struct object_id oid;
 711
 712                read_ref_full(item->string, RESOLVE_REF_READING, oid.hash, &flag);
 713                if (!(flag & REF_ISSYMREF))
 714                        continue;
 715                if (delete_ref(item->string, NULL, REF_NODEREF))
 716                        die(_("deleting '%s' failed"), item->string);
 717        }
 718        for (i = 0; i < remote_branches.nr; i++) {
 719                struct string_list_item *item = remote_branches.items + i;
 720
 721                if (item->util)
 722                        continue;
 723                strbuf_reset(&buf);
 724                strbuf_addstr(&buf, item->string);
 725                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 726                                rename.new, strlen(rename.new));
 727                strbuf_reset(&buf2);
 728                strbuf_addf(&buf2, "remote: renamed %s to %s",
 729                                item->string, buf.buf);
 730                if (rename_ref(item->string, buf.buf, buf2.buf))
 731                        die(_("renaming '%s' failed"), item->string);
 732        }
 733        for (i = 0; i < remote_branches.nr; i++) {
 734                struct string_list_item *item = remote_branches.items + i;
 735
 736                if (!item->util)
 737                        continue;
 738                strbuf_reset(&buf);
 739                strbuf_addstr(&buf, item->string);
 740                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 741                                rename.new, strlen(rename.new));
 742                strbuf_reset(&buf2);
 743                strbuf_addstr(&buf2, item->util);
 744                strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
 745                                rename.new, strlen(rename.new));
 746                strbuf_reset(&buf3);
 747                strbuf_addf(&buf3, "remote: renamed %s to %s",
 748                                item->string, buf.buf);
 749                if (create_symref(buf.buf, buf2.buf, buf3.buf))
 750                        die(_("creating '%s' failed"), buf.buf);
 751        }
 752        return 0;
 753}
 754
 755static int remove_branches(struct string_list *branches)
 756{
 757        struct strbuf err = STRBUF_INIT;
 758        int i, result = 0;
 759
 760        if (repack_without_refs(branches, &err))
 761                result |= error("%s", err.buf);
 762        strbuf_release(&err);
 763
 764        for (i = 0; i < branches->nr; i++) {
 765                struct string_list_item *item = branches->items + i;
 766                const char *refname = item->string;
 767
 768                if (delete_ref(refname, NULL, 0))
 769                        result |= error(_("Could not remove branch %s"), refname);
 770        }
 771
 772        return result;
 773}
 774
 775static int rm(int argc, const char **argv)
 776{
 777        struct option options[] = {
 778                OPT_END()
 779        };
 780        struct remote *remote;
 781        struct strbuf buf = STRBUF_INIT;
 782        struct known_remotes known_remotes = { NULL, NULL };
 783        struct string_list branches = STRING_LIST_INIT_DUP;
 784        struct string_list skipped = STRING_LIST_INIT_DUP;
 785        struct branches_for_remote cb_data;
 786        int i, result;
 787
 788        memset(&cb_data, 0, sizeof(cb_data));
 789        cb_data.branches = &branches;
 790        cb_data.skipped = &skipped;
 791        cb_data.keep = &known_remotes;
 792
 793        if (argc != 2)
 794                usage_with_options(builtin_remote_rm_usage, options);
 795
 796        remote = remote_get(argv[1]);
 797        if (!remote)
 798                die(_("No such remote: %s"), argv[1]);
 799
 800        known_remotes.to_delete = remote;
 801        for_each_remote(add_known_remote, &known_remotes);
 802
 803        read_branches();
 804        for (i = 0; i < branch_list.nr; i++) {
 805                struct string_list_item *item = branch_list.items + i;
 806                struct branch_info *info = item->util;
 807                if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 808                        const char *keys[] = { "remote", "merge", NULL }, **k;
 809                        for (k = keys; *k; k++) {
 810                                strbuf_reset(&buf);
 811                                strbuf_addf(&buf, "branch.%s.%s",
 812                                                item->string, *k);
 813                                if (git_config_set(buf.buf, NULL)) {
 814                                        strbuf_release(&buf);
 815                                        return -1;
 816                                }
 817                        }
 818                }
 819        }
 820
 821        /*
 822         * We cannot just pass a function to for_each_ref() which deletes
 823         * the branches one by one, since for_each_ref() relies on cached
 824         * refs, which are invalidated when deleting a branch.
 825         */
 826        cb_data.remote = remote;
 827        result = for_each_ref(add_branch_for_removal, &cb_data);
 828        strbuf_release(&buf);
 829
 830        if (!result)
 831                result = remove_branches(&branches);
 832        string_list_clear(&branches, 0);
 833
 834        if (skipped.nr) {
 835                fprintf_ln(stderr,
 836                           Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 837                              "to delete it, use:",
 838                              "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 839                              "to delete them, use:",
 840                              skipped.nr));
 841                for (i = 0; i < skipped.nr; i++)
 842                        fprintf(stderr, "  git branch -d %s\n",
 843                                skipped.items[i].string);
 844        }
 845        string_list_clear(&skipped, 0);
 846
 847        if (!result) {
 848                strbuf_addf(&buf, "remote.%s", remote->name);
 849                if (git_config_rename_section(buf.buf, NULL) < 1)
 850                        return error(_("Could not remove config section '%s'"), buf.buf);
 851        }
 852
 853        return result;
 854}
 855
 856static void clear_push_info(void *util, const char *string)
 857{
 858        struct push_info *info = util;
 859        free(info->dest);
 860        free(info);
 861}
 862
 863static void free_remote_ref_states(struct ref_states *states)
 864{
 865        string_list_clear(&states->new, 0);
 866        string_list_clear(&states->stale, 1);
 867        string_list_clear(&states->tracked, 0);
 868        string_list_clear(&states->heads, 0);
 869        string_list_clear_func(&states->push, clear_push_info);
 870}
 871
 872static int append_ref_to_tracked_list(const char *refname,
 873        const struct object_id *oid, int flags, void *cb_data)
 874{
 875        struct ref_states *states = cb_data;
 876        struct refspec refspec;
 877
 878        if (flags & REF_ISSYMREF)
 879                return 0;
 880
 881        memset(&refspec, 0, sizeof(refspec));
 882        refspec.dst = (char *)refname;
 883        if (!remote_find_tracking(states->remote, &refspec))
 884                string_list_append(&states->tracked, abbrev_branch(refspec.src));
 885
 886        return 0;
 887}
 888
 889static int get_remote_ref_states(const char *name,
 890                                 struct ref_states *states,
 891                                 int query)
 892{
 893        struct transport *transport;
 894        const struct ref *remote_refs;
 895
 896        states->remote = remote_get(name);
 897        if (!states->remote)
 898                return error(_("No such remote: %s"), name);
 899
 900        read_branches();
 901
 902        if (query) {
 903                transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 904                        states->remote->url[0] : NULL);
 905                remote_refs = transport_get_remote_refs(transport);
 906                transport_disconnect(transport);
 907
 908                states->queried = 1;
 909                if (query & GET_REF_STATES)
 910                        get_ref_states(remote_refs, states);
 911                if (query & GET_HEAD_NAMES)
 912                        get_head_names(remote_refs, states);
 913                if (query & GET_PUSH_REF_STATES)
 914                        get_push_ref_states(remote_refs, states);
 915        } else {
 916                for_each_ref(append_ref_to_tracked_list, states);
 917                string_list_sort(&states->tracked);
 918                get_push_ref_states_noquery(states);
 919        }
 920
 921        return 0;
 922}
 923
 924struct show_info {
 925        struct string_list *list;
 926        struct ref_states *states;
 927        int width, width2;
 928        int any_rebase;
 929};
 930
 931static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 932{
 933        struct show_info *info = cb_data;
 934        int n = strlen(item->string);
 935        if (n > info->width)
 936                info->width = n;
 937        string_list_insert(info->list, item->string);
 938        return 0;
 939}
 940
 941static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 942{
 943        struct show_info *info = cb_data;
 944        struct ref_states *states = info->states;
 945        const char *name = item->string;
 946
 947        if (states->queried) {
 948                const char *fmt = "%s";
 949                const char *arg = "";
 950                if (string_list_has_string(&states->new, name)) {
 951                        fmt = _(" new (next fetch will store in remotes/%s)");
 952                        arg = states->remote->name;
 953                } else if (string_list_has_string(&states->tracked, name))
 954                        arg = _(" tracked");
 955                else if (string_list_has_string(&states->stale, name))
 956                        arg = _(" stale (use 'git remote prune' to remove)");
 957                else
 958                        arg = _(" ???");
 959                printf("    %-*s", info->width, name);
 960                printf(fmt, arg);
 961                printf("\n");
 962        } else
 963                printf("    %s\n", name);
 964
 965        return 0;
 966}
 967
 968static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 969{
 970        struct show_info *show_info = cb_data;
 971        struct ref_states *states = show_info->states;
 972        struct branch_info *branch_info = branch_item->util;
 973        struct string_list_item *item;
 974        int n;
 975
 976        if (!branch_info->merge.nr || !branch_info->remote_name ||
 977            strcmp(states->remote->name, branch_info->remote_name))
 978                return 0;
 979        if ((n = strlen(branch_item->string)) > show_info->width)
 980                show_info->width = n;
 981        if (branch_info->rebase)
 982                show_info->any_rebase = 1;
 983
 984        item = string_list_insert(show_info->list, branch_item->string);
 985        item->util = branch_info;
 986
 987        return 0;
 988}
 989
 990static int show_local_info_item(struct string_list_item *item, void *cb_data)
 991{
 992        struct show_info *show_info = cb_data;
 993        struct branch_info *branch_info = item->util;
 994        struct string_list *merge = &branch_info->merge;
 995        const char *also;
 996        int i;
 997
 998        if (branch_info->rebase && branch_info->merge.nr > 1) {
 999                error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"),
1000                        item->string);
1001                return 0;
1002        }
1003
1004        printf("    %-*s ", show_info->width, item->string);
1005        if (branch_info->rebase) {
1006                printf_ln(_("rebases onto remote %s"), merge->items[0].string);
1007                return 0;
1008        } else if (show_info->any_rebase) {
1009                printf_ln(_(" merges with remote %s"), merge->items[0].string);
1010                also = _("    and with remote");
1011        } else {
1012                printf_ln(_("merges with remote %s"), merge->items[0].string);
1013                also = _("   and with remote");
1014        }
1015        for (i = 1; i < merge->nr; i++)
1016                printf("    %-*s %s %s\n", show_info->width, "", also,
1017                       merge->items[i].string);
1018
1019        return 0;
1020}
1021
1022static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
1023{
1024        struct show_info *show_info = cb_data;
1025        struct push_info *push_info = push_item->util;
1026        struct string_list_item *item;
1027        int n;
1028        if ((n = strlen(push_item->string)) > show_info->width)
1029                show_info->width = n;
1030        if ((n = strlen(push_info->dest)) > show_info->width2)
1031                show_info->width2 = n;
1032        item = string_list_append(show_info->list, push_item->string);
1033        item->util = push_item->util;
1034        return 0;
1035}
1036
1037/*
1038 * Sorting comparison for a string list that has push_info
1039 * structs in its util field
1040 */
1041static int cmp_string_with_push(const void *va, const void *vb)
1042{
1043        const struct string_list_item *a = va;
1044        const struct string_list_item *b = vb;
1045        const struct push_info *a_push = a->util;
1046        const struct push_info *b_push = b->util;
1047        int cmp = strcmp(a->string, b->string);
1048        return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1049}
1050
1051static int show_push_info_item(struct string_list_item *item, void *cb_data)
1052{
1053        struct show_info *show_info = cb_data;
1054        struct push_info *push_info = item->util;
1055        const char *src = item->string, *status = NULL;
1056
1057        switch (push_info->status) {
1058        case PUSH_STATUS_CREATE:
1059                status = _("create");
1060                break;
1061        case PUSH_STATUS_DELETE:
1062                status = _("delete");
1063                src = _("(none)");
1064                break;
1065        case PUSH_STATUS_UPTODATE:
1066                status = _("up to date");
1067                break;
1068        case PUSH_STATUS_FASTFORWARD:
1069                status = _("fast-forwardable");
1070                break;
1071        case PUSH_STATUS_OUTOFDATE:
1072                status = _("local out of date");
1073                break;
1074        case PUSH_STATUS_NOTQUERIED:
1075                break;
1076        }
1077        if (status) {
1078                if (push_info->forced)
1079                        printf_ln(_("    %-*s forces to %-*s (%s)"), show_info->width, src,
1080                               show_info->width2, push_info->dest, status);
1081                else
1082                        printf_ln(_("    %-*s pushes to %-*s (%s)"), show_info->width, src,
1083                               show_info->width2, push_info->dest, status);
1084        } else {
1085                if (push_info->forced)
1086                        printf_ln(_("    %-*s forces to %s"), show_info->width, src,
1087                               push_info->dest);
1088                else
1089                        printf_ln(_("    %-*s pushes to %s"), show_info->width, src,
1090                               push_info->dest);
1091        }
1092        return 0;
1093}
1094
1095static int get_one_entry(struct remote *remote, void *priv)
1096{
1097        struct string_list *list = priv;
1098        struct strbuf url_buf = STRBUF_INIT;
1099        const char **url;
1100        int i, url_nr;
1101
1102        if (remote->url_nr > 0) {
1103                strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1104                string_list_append(list, remote->name)->util =
1105                                strbuf_detach(&url_buf, NULL);
1106        } else
1107                string_list_append(list, remote->name)->util = NULL;
1108        if (remote->pushurl_nr) {
1109                url = remote->pushurl;
1110                url_nr = remote->pushurl_nr;
1111        } else {
1112                url = remote->url;
1113                url_nr = remote->url_nr;
1114        }
1115        for (i = 0; i < url_nr; i++)
1116        {
1117                strbuf_addf(&url_buf, "%s (push)", url[i]);
1118                string_list_append(list, remote->name)->util =
1119                                strbuf_detach(&url_buf, NULL);
1120        }
1121
1122        return 0;
1123}
1124
1125static int show_all(void)
1126{
1127        struct string_list list = STRING_LIST_INIT_NODUP;
1128        int result;
1129
1130        list.strdup_strings = 1;
1131        result = for_each_remote(get_one_entry, &list);
1132
1133        if (!result) {
1134                int i;
1135
1136                string_list_sort(&list);
1137                for (i = 0; i < list.nr; i++) {
1138                        struct string_list_item *item = list.items + i;
1139                        if (verbose)
1140                                printf("%s\t%s\n", item->string,
1141                                        item->util ? (const char *)item->util : "");
1142                        else {
1143                                if (i && !strcmp((item - 1)->string, item->string))
1144                                        continue;
1145                                printf("%s\n", item->string);
1146                        }
1147                }
1148        }
1149        string_list_clear(&list, 1);
1150        return result;
1151}
1152
1153static int show(int argc, const char **argv)
1154{
1155        int no_query = 0, result = 0, query_flag = 0;
1156        struct option options[] = {
1157                OPT_BOOL('n', NULL, &no_query, N_("do not query remotes")),
1158                OPT_END()
1159        };
1160        struct ref_states states;
1161        struct string_list info_list = STRING_LIST_INIT_NODUP;
1162        struct show_info info;
1163
1164        argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1165                             0);
1166
1167        if (argc < 1)
1168                return show_all();
1169
1170        if (!no_query)
1171                query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1172
1173        memset(&states, 0, sizeof(states));
1174        memset(&info, 0, sizeof(info));
1175        info.states = &states;
1176        info.list = &info_list;
1177        for (; argc; argc--, argv++) {
1178                int i;
1179                const char **url;
1180                int url_nr;
1181
1182                get_remote_ref_states(*argv, &states, query_flag);
1183
1184                printf_ln(_("* remote %s"), *argv);
1185                printf_ln(_("  Fetch URL: %s"), states.remote->url_nr > 0 ?
1186                       states.remote->url[0] : _("(no URL)"));
1187                if (states.remote->pushurl_nr) {
1188                        url = states.remote->pushurl;
1189                        url_nr = states.remote->pushurl_nr;
1190                } else {
1191                        url = states.remote->url;
1192                        url_nr = states.remote->url_nr;
1193                }
1194                for (i = 0; i < url_nr; i++)
1195                        printf_ln(_("  Push  URL: %s"), url[i]);
1196                if (!i)
1197                        printf_ln(_("  Push  URL: %s"), "(no URL)");
1198                if (no_query)
1199                        printf_ln(_("  HEAD branch: %s"), "(not queried)");
1200                else if (!states.heads.nr)
1201                        printf_ln(_("  HEAD branch: %s"), "(unknown)");
1202                else if (states.heads.nr == 1)
1203                        printf_ln(_("  HEAD branch: %s"), states.heads.items[0].string);
1204                else {
1205                        printf(_("  HEAD branch (remote HEAD is ambiguous,"
1206                                 " may be one of the following):\n"));
1207                        for (i = 0; i < states.heads.nr; i++)
1208                                printf("    %s\n", states.heads.items[i].string);
1209                }
1210
1211                /* remote branch info */
1212                info.width = 0;
1213                for_each_string_list(&states.new, add_remote_to_show_info, &info);
1214                for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1215                for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1216                if (info.list->nr)
1217                        printf_ln(Q_("  Remote branch:%s",
1218                                     "  Remote branches:%s",
1219                                     info.list->nr),
1220                                  no_query ? _(" (status not queried)") : "");
1221                for_each_string_list(info.list, show_remote_info_item, &info);
1222                string_list_clear(info.list, 0);
1223
1224                /* git pull info */
1225                info.width = 0;
1226                info.any_rebase = 0;
1227                for_each_string_list(&branch_list, add_local_to_show_info, &info);
1228                if (info.list->nr)
1229                        printf_ln(Q_("  Local branch configured for 'git pull':",
1230                                     "  Local branches configured for 'git pull':",
1231                                     info.list->nr));
1232                for_each_string_list(info.list, show_local_info_item, &info);
1233                string_list_clear(info.list, 0);
1234
1235                /* git push info */
1236                if (states.remote->mirror)
1237                        printf_ln(_("  Local refs will be mirrored by 'git push'"));
1238
1239                info.width = info.width2 = 0;
1240                for_each_string_list(&states.push, add_push_to_show_info, &info);
1241                qsort(info.list->items, info.list->nr,
1242                        sizeof(*info.list->items), cmp_string_with_push);
1243                if (info.list->nr)
1244                        printf_ln(Q_("  Local ref configured for 'git push'%s:",
1245                                     "  Local refs configured for 'git push'%s:",
1246                                     info.list->nr),
1247                                  no_query ? _(" (status not queried)") : "");
1248                for_each_string_list(info.list, show_push_info_item, &info);
1249                string_list_clear(info.list, 0);
1250
1251                free_remote_ref_states(&states);
1252        }
1253
1254        return result;
1255}
1256
1257static int set_head(int argc, const char **argv)
1258{
1259        int i, opt_a = 0, opt_d = 0, result = 0;
1260        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1261        char *head_name = NULL;
1262
1263        struct option options[] = {
1264                OPT_BOOL('a', "auto", &opt_a,
1265                         N_("set refs/remotes/<name>/HEAD according to remote")),
1266                OPT_BOOL('d', "delete", &opt_d,
1267                         N_("delete refs/remotes/<name>/HEAD")),
1268                OPT_END()
1269        };
1270        argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1271                             0);
1272        if (argc)
1273                strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1274
1275        if (!opt_a && !opt_d && argc == 2) {
1276                head_name = xstrdup(argv[1]);
1277        } else if (opt_a && !opt_d && argc == 1) {
1278                struct ref_states states;
1279                memset(&states, 0, sizeof(states));
1280                get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1281                if (!states.heads.nr)
1282                        result |= error(_("Cannot determine remote HEAD"));
1283                else if (states.heads.nr > 1) {
1284                        result |= error(_("Multiple remote HEAD branches. "
1285                                          "Please choose one explicitly with:"));
1286                        for (i = 0; i < states.heads.nr; i++)
1287                                fprintf(stderr, "  git remote set-head %s %s\n",
1288                                        argv[0], states.heads.items[i].string);
1289                } else
1290                        head_name = xstrdup(states.heads.items[0].string);
1291                free_remote_ref_states(&states);
1292        } else if (opt_d && !opt_a && argc == 1) {
1293                if (delete_ref(buf.buf, NULL, REF_NODEREF))
1294                        result |= error(_("Could not delete %s"), buf.buf);
1295        } else
1296                usage_with_options(builtin_remote_sethead_usage, options);
1297
1298        if (head_name) {
1299                strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1300                /* make sure it's valid */
1301                if (!ref_exists(buf2.buf))
1302                        result |= error(_("Not a valid ref: %s"), buf2.buf);
1303                else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1304                        result |= error(_("Could not setup %s"), buf.buf);
1305                if (opt_a)
1306                        printf("%s/HEAD set to %s\n", argv[0], head_name);
1307                free(head_name);
1308        }
1309
1310        strbuf_release(&buf);
1311        strbuf_release(&buf2);
1312        return result;
1313}
1314
1315static int prune_remote(const char *remote, int dry_run)
1316{
1317        int result = 0;
1318        struct ref_states states;
1319        struct string_list refs_to_prune = STRING_LIST_INIT_NODUP;
1320        struct string_list_item *item;
1321        const char *dangling_msg = dry_run
1322                ? _(" %s will become dangling!")
1323                : _(" %s has become dangling!");
1324
1325        memset(&states, 0, sizeof(states));
1326        get_remote_ref_states(remote, &states, GET_REF_STATES);
1327
1328        if (!states.stale.nr) {
1329                free_remote_ref_states(&states);
1330                return 0;
1331        }
1332
1333        printf_ln(_("Pruning %s"), remote);
1334        printf_ln(_("URL: %s"),
1335                  states.remote->url_nr
1336                  ? states.remote->url[0]
1337                  : _("(no URL)"));
1338
1339        for_each_string_list_item(item, &states.stale)
1340                string_list_append(&refs_to_prune, item->util);
1341        string_list_sort(&refs_to_prune);
1342
1343        if (!dry_run) {
1344                struct strbuf err = STRBUF_INIT;
1345                if (repack_without_refs(&refs_to_prune, &err))
1346                        result |= error("%s", err.buf);
1347                strbuf_release(&err);
1348        }
1349
1350        for_each_string_list_item(item, &states.stale) {
1351                const char *refname = item->util;
1352
1353                if (!dry_run)
1354                        result |= delete_ref(refname, NULL, 0);
1355
1356                if (dry_run)
1357                        printf_ln(_(" * [would prune] %s"),
1358                               abbrev_ref(refname, "refs/remotes/"));
1359                else
1360                        printf_ln(_(" * [pruned] %s"),
1361                               abbrev_ref(refname, "refs/remotes/"));
1362        }
1363
1364        warn_dangling_symrefs(stdout, dangling_msg, &refs_to_prune);
1365
1366        string_list_clear(&refs_to_prune, 0);
1367        free_remote_ref_states(&states);
1368        return result;
1369}
1370
1371static int prune(int argc, const char **argv)
1372{
1373        int dry_run = 0, result = 0;
1374        struct option options[] = {
1375                OPT__DRY_RUN(&dry_run, N_("dry run")),
1376                OPT_END()
1377        };
1378
1379        argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1380                             0);
1381
1382        if (argc < 1)
1383                usage_with_options(builtin_remote_prune_usage, options);
1384
1385        for (; argc; argc--, argv++)
1386                result |= prune_remote(*argv, dry_run);
1387
1388        return result;
1389}
1390
1391static int get_remote_default(const char *key, const char *value, void *priv)
1392{
1393        if (strcmp(key, "remotes.default") == 0) {
1394                int *found = priv;
1395                *found = 1;
1396        }
1397        return 0;
1398}
1399
1400static int update(int argc, const char **argv)
1401{
1402        int i, prune = -1;
1403        struct option options[] = {
1404                OPT_BOOL('p', "prune", &prune,
1405                         N_("prune remotes after fetching")),
1406                OPT_END()
1407        };
1408        struct argv_array fetch_argv = ARGV_ARRAY_INIT;
1409        int default_defined = 0;
1410        int retval;
1411
1412        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1413                             PARSE_OPT_KEEP_ARGV0);
1414
1415        argv_array_push(&fetch_argv, "fetch");
1416
1417        if (prune != -1)
1418                argv_array_push(&fetch_argv, prune ? "--prune" : "--no-prune");
1419        if (verbose)
1420                argv_array_push(&fetch_argv, "-v");
1421        argv_array_push(&fetch_argv, "--multiple");
1422        if (argc < 2)
1423                argv_array_push(&fetch_argv, "default");
1424        for (i = 1; i < argc; i++)
1425                argv_array_push(&fetch_argv, argv[i]);
1426
1427        if (strcmp(fetch_argv.argv[fetch_argv.argc-1], "default") == 0) {
1428                git_config(get_remote_default, &default_defined);
1429                if (!default_defined) {
1430                        argv_array_pop(&fetch_argv);
1431                        argv_array_push(&fetch_argv, "--all");
1432                }
1433        }
1434
1435        retval = run_command_v_opt(fetch_argv.argv, RUN_GIT_CMD);
1436        argv_array_clear(&fetch_argv);
1437        return retval;
1438}
1439
1440static int remove_all_fetch_refspecs(const char *remote, const char *key)
1441{
1442        return git_config_set_multivar(key, NULL, NULL, 1);
1443}
1444
1445static int add_branches(struct remote *remote, const char **branches,
1446                        const char *key)
1447{
1448        const char *remotename = remote->name;
1449        int mirror = remote->mirror;
1450        struct strbuf refspec = STRBUF_INIT;
1451
1452        for (; *branches; branches++)
1453                if (add_branch(key, *branches, remotename, mirror, &refspec)) {
1454                        strbuf_release(&refspec);
1455                        return 1;
1456                }
1457
1458        strbuf_release(&refspec);
1459        return 0;
1460}
1461
1462static int set_remote_branches(const char *remotename, const char **branches,
1463                                int add_mode)
1464{
1465        struct strbuf key = STRBUF_INIT;
1466        struct remote *remote;
1467
1468        strbuf_addf(&key, "remote.%s.fetch", remotename);
1469
1470        if (!remote_is_configured(remotename))
1471                die(_("No such remote '%s'"), remotename);
1472        remote = remote_get(remotename);
1473
1474        if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
1475                strbuf_release(&key);
1476                return 1;
1477        }
1478        if (add_branches(remote, branches, key.buf)) {
1479                strbuf_release(&key);
1480                return 1;
1481        }
1482
1483        strbuf_release(&key);
1484        return 0;
1485}
1486
1487static int set_branches(int argc, const char **argv)
1488{
1489        int add_mode = 0;
1490        struct option options[] = {
1491                OPT_BOOL('\0', "add", &add_mode, N_("add branch")),
1492                OPT_END()
1493        };
1494
1495        argc = parse_options(argc, argv, NULL, options,
1496                             builtin_remote_setbranches_usage, 0);
1497        if (argc == 0) {
1498                error(_("no remote specified"));
1499                usage_with_options(builtin_remote_setbranches_usage, options);
1500        }
1501        argv[argc] = NULL;
1502
1503        return set_remote_branches(argv[0], argv + 1, add_mode);
1504}
1505
1506static int get_url(int argc, const char **argv)
1507{
1508        int i, push_mode = 0, all_mode = 0;
1509        const char *remotename = NULL;
1510        struct remote *remote;
1511        const char **url;
1512        int url_nr;
1513        struct option options[] = {
1514                OPT_BOOL('\0', "push", &push_mode,
1515                         N_("query push URLs rather than fetch URLs")),
1516                OPT_BOOL('\0', "all", &all_mode,
1517                         N_("return all URLs")),
1518                OPT_END()
1519        };
1520        argc = parse_options(argc, argv, NULL, options, builtin_remote_geturl_usage, 0);
1521
1522        if (argc != 1)
1523                usage_with_options(builtin_remote_geturl_usage, options);
1524
1525        remotename = argv[0];
1526
1527        if (!remote_is_configured(remotename))
1528                die(_("No such remote '%s'"), remotename);
1529        remote = remote_get(remotename);
1530
1531        url_nr = 0;
1532        if (push_mode) {
1533                url = remote->pushurl;
1534                url_nr = remote->pushurl_nr;
1535        }
1536        /* else fetch mode */
1537
1538        /* Use the fetch URL when no push URLs were found or requested. */
1539        if (!url_nr) {
1540                url = remote->url;
1541                url_nr = remote->url_nr;
1542        }
1543
1544        if (!url_nr)
1545                die(_("no URLs configured for remote '%s'"), remotename);
1546
1547        if (all_mode) {
1548                for (i = 0; i < url_nr; i++)
1549                        printf_ln("%s", url[i]);
1550        } else {
1551                printf_ln("%s", *url);
1552        }
1553
1554        return 0;
1555}
1556
1557static int set_url(int argc, const char **argv)
1558{
1559        int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1560        int matches = 0, negative_matches = 0;
1561        const char *remotename = NULL;
1562        const char *newurl = NULL;
1563        const char *oldurl = NULL;
1564        struct remote *remote;
1565        regex_t old_regex;
1566        const char **urlset;
1567        int urlset_nr;
1568        struct strbuf name_buf = STRBUF_INIT;
1569        struct option options[] = {
1570                OPT_BOOL('\0', "push", &push_mode,
1571                         N_("manipulate push URLs")),
1572                OPT_BOOL('\0', "add", &add_mode,
1573                         N_("add URL")),
1574                OPT_BOOL('\0', "delete", &delete_mode,
1575                            N_("delete URLs")),
1576                OPT_END()
1577        };
1578        argc = parse_options(argc, argv, NULL, options, builtin_remote_seturl_usage,
1579                             PARSE_OPT_KEEP_ARGV0);
1580
1581        if (add_mode && delete_mode)
1582                die(_("--add --delete doesn't make sense"));
1583
1584        if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1585                usage_with_options(builtin_remote_seturl_usage, options);
1586
1587        remotename = argv[1];
1588        newurl = argv[2];
1589        if (argc > 3)
1590                oldurl = argv[3];
1591
1592        if (delete_mode)
1593                oldurl = newurl;
1594
1595        if (!remote_is_configured(remotename))
1596                die(_("No such remote '%s'"), remotename);
1597        remote = remote_get(remotename);
1598
1599        if (push_mode) {
1600                strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1601                urlset = remote->pushurl;
1602                urlset_nr = remote->pushurl_nr;
1603        } else {
1604                strbuf_addf(&name_buf, "remote.%s.url", remotename);
1605                urlset = remote->url;
1606                urlset_nr = remote->url_nr;
1607        }
1608
1609        /* Special cases that add new entry. */
1610        if ((!oldurl && !delete_mode) || add_mode) {
1611                if (add_mode)
1612                        git_config_set_multivar(name_buf.buf, newurl,
1613                                "^$", 0);
1614                else
1615                        git_config_set(name_buf.buf, newurl);
1616                strbuf_release(&name_buf);
1617                return 0;
1618        }
1619
1620        /* Old URL specified. Demand that one matches. */
1621        if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1622                die(_("Invalid old URL pattern: %s"), oldurl);
1623
1624        for (i = 0; i < urlset_nr; i++)
1625                if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1626                        matches++;
1627                else
1628                        negative_matches++;
1629        if (!delete_mode && !matches)
1630                die(_("No such URL found: %s"), oldurl);
1631        if (delete_mode && !negative_matches && !push_mode)
1632                die(_("Will not delete all non-push URLs"));
1633
1634        regfree(&old_regex);
1635
1636        if (!delete_mode)
1637                git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1638        else
1639                git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1640        return 0;
1641}
1642
1643int cmd_remote(int argc, const char **argv, const char *prefix)
1644{
1645        struct option options[] = {
1646                OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")),
1647                OPT_END()
1648        };
1649        int result;
1650
1651        argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1652                PARSE_OPT_STOP_AT_NON_OPTION);
1653
1654        if (argc < 1)
1655                result = show_all();
1656        else if (!strcmp(argv[0], "add"))
1657                result = add(argc, argv);
1658        else if (!strcmp(argv[0], "rename"))
1659                result = mv(argc, argv);
1660        else if (!strcmp(argv[0], "rm") || !strcmp(argv[0], "remove"))
1661                result = rm(argc, argv);
1662        else if (!strcmp(argv[0], "set-head"))
1663                result = set_head(argc, argv);
1664        else if (!strcmp(argv[0], "set-branches"))
1665                result = set_branches(argc, argv);
1666        else if (!strcmp(argv[0], "get-url"))
1667                result = get_url(argc, argv);
1668        else if (!strcmp(argv[0], "set-url"))
1669                result = set_url(argc, argv);
1670        else if (!strcmp(argv[0], "show"))
1671                result = show(argc, argv);
1672        else if (!strcmp(argv[0], "prune"))
1673                result = prune(argc, argv);
1674        else if (!strcmp(argv[0], "update"))
1675                result = update(argc, argv);
1676        else {
1677                error(_("Unknown subcommand: %s"), argv[0]);
1678                usage_with_options(builtin_remote_usage, options);
1679        }
1680
1681        return result ? 1 : 0;
1682}