builtin / remote.con commit submodule: port resolve_relative_url from shell to C (63e95be)
   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 void add_branch(const char *key, const char *branchname,
 112                       const char *remotename, int mirror, struct strbuf *tmp)
 113{
 114        strbuf_reset(tmp);
 115        strbuf_addch(tmp, '+');
 116        if (mirror)
 117                strbuf_addf(tmp, "refs/%s:refs/%s",
 118                                branchname, branchname);
 119        else
 120                strbuf_addf(tmp, "refs/heads/%s:refs/remotes/%s/%s",
 121                                branchname, remotename, branchname);
 122        git_config_set_multivar(key, tmp->buf, "^$", 0);
 123}
 124
 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_is_configured(remote))
 190                die(_("remote %s already exists."), name);
 191
 192        strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
 193        if (!valid_fetch_refspec(buf2.buf))
 194                die(_("'%s' is not a valid remote name"), name);
 195
 196        strbuf_addf(&buf, "remote.%s.url", name);
 197        git_config_set(buf.buf, url);
 198
 199        if (!mirror || mirror & MIRROR_FETCH) {
 200                strbuf_reset(&buf);
 201                strbuf_addf(&buf, "remote.%s.fetch", name);
 202                if (track.nr == 0)
 203                        string_list_append(&track, "*");
 204                for (i = 0; i < track.nr; i++) {
 205                        add_branch(buf.buf, track.items[i].string,
 206                                   name, mirror, &buf2);
 207                }
 208        }
 209
 210        if (mirror & MIRROR_PUSH) {
 211                strbuf_reset(&buf);
 212                strbuf_addf(&buf, "remote.%s.mirror", name);
 213                git_config_set(buf.buf, "true");
 214        }
 215
 216        if (fetch_tags != TAGS_DEFAULT) {
 217                strbuf_reset(&buf);
 218                strbuf_addf(&buf, "remote.%s.tagopt", name);
 219                git_config_set(buf.buf,
 220                               fetch_tags == TAGS_SET ? "--tags" : "--no-tags");
 221        }
 222
 223        if (fetch && fetch_remote(name))
 224                return 1;
 225
 226        if (master) {
 227                strbuf_reset(&buf);
 228                strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
 229
 230                strbuf_reset(&buf2);
 231                strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
 232
 233                if (create_symref(buf.buf, buf2.buf, "remote add"))
 234                        return error(_("Could not setup master '%s'"), master);
 235        }
 236
 237        strbuf_release(&buf);
 238        strbuf_release(&buf2);
 239        string_list_clear(&track, 0);
 240
 241        return 0;
 242}
 243
 244struct branch_info {
 245        char *remote_name;
 246        struct string_list merge;
 247        enum { NO_REBASE, NORMAL_REBASE, INTERACTIVE_REBASE } rebase;
 248};
 249
 250static struct string_list branch_list;
 251
 252static const char *abbrev_ref(const char *name, const char *prefix)
 253{
 254        skip_prefix(name, prefix, &name);
 255        return name;
 256}
 257#define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 258
 259static int config_read_branches(const char *key, const char *value, void *cb)
 260{
 261        if (starts_with(key, "branch.")) {
 262                const char *orig_key = key;
 263                char *name;
 264                struct string_list_item *item;
 265                struct branch_info *info;
 266                enum { REMOTE, MERGE, REBASE } type;
 267                size_t key_len;
 268
 269                key += 7;
 270                if (strip_suffix(key, ".remote", &key_len)) {
 271                        name = xmemdupz(key, key_len);
 272                        type = REMOTE;
 273                } else if (strip_suffix(key, ".merge", &key_len)) {
 274                        name = xmemdupz(key, key_len);
 275                        type = MERGE;
 276                } else if (strip_suffix(key, ".rebase", &key_len)) {
 277                        name = xmemdupz(key, key_len);
 278                        type = REBASE;
 279                } else
 280                        return 0;
 281
 282                item = string_list_insert(&branch_list, name);
 283
 284                if (!item->util)
 285                        item->util = xcalloc(1, sizeof(struct branch_info));
 286                info = item->util;
 287                if (type == REMOTE) {
 288                        if (info->remote_name)
 289                                warning(_("more than one %s"), orig_key);
 290                        info->remote_name = xstrdup(value);
 291                } else if (type == MERGE) {
 292                        char *space = strchr(value, ' ');
 293                        value = abbrev_branch(value);
 294                        while (space) {
 295                                char *merge;
 296                                merge = xstrndup(value, space - value);
 297                                string_list_append(&info->merge, merge);
 298                                value = abbrev_branch(space + 1);
 299                                space = strchr(value, ' ');
 300                        }
 301                        string_list_append(&info->merge, xstrdup(value));
 302                } else {
 303                        int v = git_config_maybe_bool(orig_key, value);
 304                        if (v >= 0)
 305                                info->rebase = v;
 306                        else if (!strcmp(value, "preserve"))
 307                                info->rebase = NORMAL_REBASE;
 308                        else if (!strcmp(value, "interactive"))
 309                                info->rebase = INTERACTIVE_REBASE;
 310                }
 311        }
 312        return 0;
 313}
 314
 315static void read_branches(void)
 316{
 317        if (branch_list.nr)
 318                return;
 319        git_config(config_read_branches, NULL);
 320}
 321
 322struct ref_states {
 323        struct remote *remote;
 324        struct string_list new, stale, tracked, heads, push;
 325        int queried;
 326};
 327
 328static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 329{
 330        struct ref *fetch_map = NULL, **tail = &fetch_map;
 331        struct ref *ref, *stale_refs;
 332        int i;
 333
 334        for (i = 0; i < states->remote->fetch_refspec_nr; i++)
 335                if (get_fetch_map(remote_refs, states->remote->fetch + i, &tail, 1))
 336                        die(_("Could not get fetch map for refspec %s"),
 337                                states->remote->fetch_refspec[i]);
 338
 339        states->new.strdup_strings = 1;
 340        states->tracked.strdup_strings = 1;
 341        states->stale.strdup_strings = 1;
 342        for (ref = fetch_map; ref; ref = ref->next) {
 343                if (!ref->peer_ref || !ref_exists(ref->peer_ref->name))
 344                        string_list_append(&states->new, abbrev_branch(ref->name));
 345                else
 346                        string_list_append(&states->tracked, abbrev_branch(ref->name));
 347        }
 348        stale_refs = get_stale_heads(states->remote->fetch,
 349                                     states->remote->fetch_refspec_nr, fetch_map);
 350        for (ref = stale_refs; ref; ref = ref->next) {
 351                struct string_list_item *item =
 352                        string_list_append(&states->stale, abbrev_branch(ref->name));
 353                item->util = xstrdup(ref->name);
 354        }
 355        free_refs(stale_refs);
 356        free_refs(fetch_map);
 357
 358        string_list_sort(&states->new);
 359        string_list_sort(&states->tracked);
 360        string_list_sort(&states->stale);
 361
 362        return 0;
 363}
 364
 365struct push_info {
 366        char *dest;
 367        int forced;
 368        enum {
 369                PUSH_STATUS_CREATE = 0,
 370                PUSH_STATUS_DELETE,
 371                PUSH_STATUS_UPTODATE,
 372                PUSH_STATUS_FASTFORWARD,
 373                PUSH_STATUS_OUTOFDATE,
 374                PUSH_STATUS_NOTQUERIED
 375        } status;
 376};
 377
 378static int get_push_ref_states(const struct ref *remote_refs,
 379        struct ref_states *states)
 380{
 381        struct remote *remote = states->remote;
 382        struct ref *ref, *local_refs, *push_map;
 383        if (remote->mirror)
 384                return 0;
 385
 386        local_refs = get_local_heads();
 387        push_map = copy_ref_list(remote_refs);
 388
 389        match_push_refs(local_refs, &push_map, remote->push_refspec_nr,
 390                        remote->push_refspec, MATCH_REFS_NONE);
 391
 392        states->push.strdup_strings = 1;
 393        for (ref = push_map; ref; ref = ref->next) {
 394                struct string_list_item *item;
 395                struct push_info *info;
 396
 397                if (!ref->peer_ref)
 398                        continue;
 399                oidcpy(&ref->new_oid, &ref->peer_ref->new_oid);
 400
 401                item = string_list_append(&states->push,
 402                                          abbrev_branch(ref->peer_ref->name));
 403                item->util = xcalloc(1, sizeof(struct push_info));
 404                info = item->util;
 405                info->forced = ref->force;
 406                info->dest = xstrdup(abbrev_branch(ref->name));
 407
 408                if (is_null_oid(&ref->new_oid)) {
 409                        info->status = PUSH_STATUS_DELETE;
 410                } else if (!oidcmp(&ref->old_oid, &ref->new_oid))
 411                        info->status = PUSH_STATUS_UPTODATE;
 412                else if (is_null_oid(&ref->old_oid))
 413                        info->status = PUSH_STATUS_CREATE;
 414                else if (has_object_file(&ref->old_oid) &&
 415                         ref_newer(&ref->new_oid, &ref->old_oid))
 416                        info->status = PUSH_STATUS_FASTFORWARD;
 417                else
 418                        info->status = PUSH_STATUS_OUTOFDATE;
 419        }
 420        free_refs(local_refs);
 421        free_refs(push_map);
 422        return 0;
 423}
 424
 425static int get_push_ref_states_noquery(struct ref_states *states)
 426{
 427        int i;
 428        struct remote *remote = states->remote;
 429        struct string_list_item *item;
 430        struct push_info *info;
 431
 432        if (remote->mirror)
 433                return 0;
 434
 435        states->push.strdup_strings = 1;
 436        if (!remote->push_refspec_nr) {
 437                item = string_list_append(&states->push, _("(matching)"));
 438                info = item->util = xcalloc(1, sizeof(struct push_info));
 439                info->status = PUSH_STATUS_NOTQUERIED;
 440                info->dest = xstrdup(item->string);
 441        }
 442        for (i = 0; i < remote->push_refspec_nr; i++) {
 443                struct refspec *spec = remote->push + i;
 444                if (spec->matching)
 445                        item = string_list_append(&states->push, _("(matching)"));
 446                else if (strlen(spec->src))
 447                        item = string_list_append(&states->push, spec->src);
 448                else
 449                        item = string_list_append(&states->push, _("(delete)"));
 450
 451                info = item->util = xcalloc(1, sizeof(struct push_info));
 452                info->forced = spec->force;
 453                info->status = PUSH_STATUS_NOTQUERIED;
 454                info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 455        }
 456        return 0;
 457}
 458
 459static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 460{
 461        struct ref *ref, *matches;
 462        struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 463        struct refspec refspec;
 464
 465        refspec.force = 0;
 466        refspec.pattern = 1;
 467        refspec.src = refspec.dst = "refs/heads/*";
 468        states->heads.strdup_strings = 1;
 469        get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 470        matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 471                                    fetch_map, 1);
 472        for (ref = matches; ref; ref = ref->next)
 473                string_list_append(&states->heads, abbrev_branch(ref->name));
 474
 475        free_refs(fetch_map);
 476        free_refs(matches);
 477
 478        return 0;
 479}
 480
 481struct known_remote {
 482        struct known_remote *next;
 483        struct remote *remote;
 484};
 485
 486struct known_remotes {
 487        struct remote *to_delete;
 488        struct known_remote *list;
 489};
 490
 491static int add_known_remote(struct remote *remote, void *cb_data)
 492{
 493        struct known_remotes *all = cb_data;
 494        struct known_remote *r;
 495
 496        if (!strcmp(all->to_delete->name, remote->name))
 497                return 0;
 498
 499        r = xmalloc(sizeof(*r));
 500        r->remote = remote;
 501        r->next = all->list;
 502        all->list = r;
 503        return 0;
 504}
 505
 506struct branches_for_remote {
 507        struct remote *remote;
 508        struct string_list *branches, *skipped;
 509        struct known_remotes *keep;
 510};
 511
 512static int add_branch_for_removal(const char *refname,
 513        const struct object_id *oid, int flags, void *cb_data)
 514{
 515        struct branches_for_remote *branches = cb_data;
 516        struct refspec refspec;
 517        struct known_remote *kr;
 518
 519        memset(&refspec, 0, sizeof(refspec));
 520        refspec.dst = (char *)refname;
 521        if (remote_find_tracking(branches->remote, &refspec))
 522                return 0;
 523
 524        /* don't delete a branch if another remote also uses it */
 525        for (kr = branches->keep->list; kr; kr = kr->next) {
 526                memset(&refspec, 0, sizeof(refspec));
 527                refspec.dst = (char *)refname;
 528                if (!remote_find_tracking(kr->remote, &refspec))
 529                        return 0;
 530        }
 531
 532        /* don't delete non-remote-tracking refs */
 533        if (!starts_with(refname, "refs/remotes/")) {
 534                /* advise user how to delete local branches */
 535                if (starts_with(refname, "refs/heads/"))
 536                        string_list_append(branches->skipped,
 537                                           abbrev_branch(refname));
 538                /* silently skip over other non-remote refs */
 539                return 0;
 540        }
 541
 542        /* make sure that symrefs are deleted */
 543        if (flags & REF_ISSYMREF)
 544                return unlink(git_path("%s", refname));
 545
 546        string_list_append(branches->branches, refname);
 547
 548        return 0;
 549}
 550
 551struct rename_info {
 552        const char *old;
 553        const char *new;
 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        struct object_id orig_oid;
 565        const char *symref;
 566
 567        strbuf_addf(&buf, "refs/remotes/%s/", rename->old);
 568        if (starts_with(refname, buf.buf)) {
 569                item = string_list_append(rename->remote_branches, xstrdup(refname));
 570                symref = resolve_ref_unsafe(refname, RESOLVE_REF_READING,
 571                                            orig_oid.hash, &flag);
 572                if (flag & REF_ISSYMREF)
 573                        item->util = xstrdup(symref);
 574                else
 575                        item->util = NULL;
 576        }
 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_refspec_nr; i++)
 592                git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0);
 593        strbuf_reset(&buf);
 594        strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 595        for (i = 0; i < remote->fetch_refspec_nr; i++)
 596                git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 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
 602        return 0;
 603}
 604
 605static int mv(int argc, const char **argv)
 606{
 607        struct option options[] = {
 608                OPT_END()
 609        };
 610        struct remote *oldremote, *newremote;
 611        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT,
 612                old_remote_context = STRBUF_INIT;
 613        struct string_list remote_branches = STRING_LIST_INIT_NODUP;
 614        struct rename_info rename;
 615        int i, refspec_updated = 0;
 616
 617        if (argc != 3)
 618                usage_with_options(builtin_remote_rename_usage, options);
 619
 620        rename.old = argv[1];
 621        rename.new = argv[2];
 622        rename.remote_branches = &remote_branches;
 623
 624        oldremote = remote_get(rename.old);
 625        if (!remote_is_configured(oldremote))
 626                die(_("No such remote: %s"), rename.old);
 627
 628        if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
 629                return migrate_file(oldremote);
 630
 631        newremote = remote_get(rename.new);
 632        if (remote_is_configured(newremote))
 633                die(_("remote %s already exists."), rename.new);
 634
 635        strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
 636        if (!valid_fetch_refspec(buf.buf))
 637                die(_("'%s' is not a valid remote name"), rename.new);
 638
 639        strbuf_reset(&buf);
 640        strbuf_addf(&buf, "remote.%s", rename.old);
 641        strbuf_addf(&buf2, "remote.%s", rename.new);
 642        if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 643                return error(_("Could not rename config section '%s' to '%s'"),
 644                                buf.buf, buf2.buf);
 645
 646        strbuf_reset(&buf);
 647        strbuf_addf(&buf, "remote.%s.fetch", rename.new);
 648        git_config_set_multivar(buf.buf, NULL, NULL, 1);
 649        strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old);
 650        for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 651                char *ptr;
 652
 653                strbuf_reset(&buf2);
 654                strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 655                ptr = strstr(buf2.buf, old_remote_context.buf);
 656                if (ptr) {
 657                        refspec_updated = 1;
 658                        strbuf_splice(&buf2,
 659                                      ptr-buf2.buf + strlen(":refs/remotes/"),
 660                                      strlen(rename.old), rename.new,
 661                                      strlen(rename.new));
 662                } else
 663                        warning(_("Not updating non-default fetch refspec\n"
 664                                  "\t%s\n"
 665                                  "\tPlease update the configuration manually if necessary."),
 666                                buf2.buf);
 667
 668                git_config_set_multivar(buf.buf, buf2.buf, "^$", 0);
 669        }
 670
 671        read_branches();
 672        for (i = 0; i < branch_list.nr; i++) {
 673                struct string_list_item *item = branch_list.items + i;
 674                struct branch_info *info = item->util;
 675                if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 676                        strbuf_reset(&buf);
 677                        strbuf_addf(&buf, "branch.%s.remote", item->string);
 678                        git_config_set(buf.buf, rename.new);
 679                }
 680        }
 681
 682        if (!refspec_updated)
 683                return 0;
 684
 685        /*
 686         * First remove symrefs, then rename the rest, finally create
 687         * the new symrefs.
 688         */
 689        for_each_ref(read_remote_branches, &rename);
 690        for (i = 0; i < remote_branches.nr; i++) {
 691                struct string_list_item *item = remote_branches.items + i;
 692                int flag = 0;
 693                struct object_id oid;
 694
 695                read_ref_full(item->string, RESOLVE_REF_READING, oid.hash, &flag);
 696                if (!(flag & REF_ISSYMREF))
 697                        continue;
 698                if (delete_ref(item->string, NULL, REF_NODEREF))
 699                        die(_("deleting '%s' failed"), item->string);
 700        }
 701        for (i = 0; i < remote_branches.nr; i++) {
 702                struct string_list_item *item = remote_branches.items + i;
 703
 704                if (item->util)
 705                        continue;
 706                strbuf_reset(&buf);
 707                strbuf_addstr(&buf, item->string);
 708                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 709                                rename.new, strlen(rename.new));
 710                strbuf_reset(&buf2);
 711                strbuf_addf(&buf2, "remote: renamed %s to %s",
 712                                item->string, buf.buf);
 713                if (rename_ref(item->string, buf.buf, buf2.buf))
 714                        die(_("renaming '%s' failed"), item->string);
 715        }
 716        for (i = 0; i < remote_branches.nr; i++) {
 717                struct string_list_item *item = remote_branches.items + i;
 718
 719                if (!item->util)
 720                        continue;
 721                strbuf_reset(&buf);
 722                strbuf_addstr(&buf, item->string);
 723                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 724                                rename.new, strlen(rename.new));
 725                strbuf_reset(&buf2);
 726                strbuf_addstr(&buf2, item->util);
 727                strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
 728                                rename.new, strlen(rename.new));
 729                strbuf_reset(&buf3);
 730                strbuf_addf(&buf3, "remote: renamed %s to %s",
 731                                item->string, buf.buf);
 732                if (create_symref(buf.buf, buf2.buf, buf3.buf))
 733                        die(_("creating '%s' failed"), buf.buf);
 734        }
 735        return 0;
 736}
 737
 738static int rm(int argc, const char **argv)
 739{
 740        struct option options[] = {
 741                OPT_END()
 742        };
 743        struct remote *remote;
 744        struct strbuf buf = STRBUF_INIT;
 745        struct known_remotes known_remotes = { NULL, NULL };
 746        struct string_list branches = STRING_LIST_INIT_DUP;
 747        struct string_list skipped = STRING_LIST_INIT_DUP;
 748        struct branches_for_remote cb_data;
 749        int i, result;
 750
 751        memset(&cb_data, 0, sizeof(cb_data));
 752        cb_data.branches = &branches;
 753        cb_data.skipped = &skipped;
 754        cb_data.keep = &known_remotes;
 755
 756        if (argc != 2)
 757                usage_with_options(builtin_remote_rm_usage, options);
 758
 759        remote = remote_get(argv[1]);
 760        if (!remote_is_configured(remote))
 761                die(_("No such remote: %s"), argv[1]);
 762
 763        known_remotes.to_delete = remote;
 764        for_each_remote(add_known_remote, &known_remotes);
 765
 766        read_branches();
 767        for (i = 0; i < branch_list.nr; i++) {
 768                struct string_list_item *item = branch_list.items + i;
 769                struct branch_info *info = item->util;
 770                if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 771                        const char *keys[] = { "remote", "merge", NULL }, **k;
 772                        for (k = keys; *k; k++) {
 773                                strbuf_reset(&buf);
 774                                strbuf_addf(&buf, "branch.%s.%s",
 775                                                item->string, *k);
 776                                git_config_set(buf.buf, NULL);
 777                        }
 778                }
 779        }
 780
 781        /*
 782         * We cannot just pass a function to for_each_ref() which deletes
 783         * the branches one by one, since for_each_ref() relies on cached
 784         * refs, which are invalidated when deleting a branch.
 785         */
 786        cb_data.remote = remote;
 787        result = for_each_ref(add_branch_for_removal, &cb_data);
 788        strbuf_release(&buf);
 789
 790        if (!result)
 791                result = delete_refs(&branches);
 792        string_list_clear(&branches, 0);
 793
 794        if (skipped.nr) {
 795                fprintf_ln(stderr,
 796                           Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 797                              "to delete it, use:",
 798                              "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 799                              "to delete them, use:",
 800                              skipped.nr));
 801                for (i = 0; i < skipped.nr; i++)
 802                        fprintf(stderr, "  git branch -d %s\n",
 803                                skipped.items[i].string);
 804        }
 805        string_list_clear(&skipped, 0);
 806
 807        if (!result) {
 808                strbuf_addf(&buf, "remote.%s", remote->name);
 809                if (git_config_rename_section(buf.buf, NULL) < 1)
 810                        return error(_("Could not remove config section '%s'"), buf.buf);
 811        }
 812
 813        return result;
 814}
 815
 816static void clear_push_info(void *util, const char *string)
 817{
 818        struct push_info *info = util;
 819        free(info->dest);
 820        free(info);
 821}
 822
 823static void free_remote_ref_states(struct ref_states *states)
 824{
 825        string_list_clear(&states->new, 0);
 826        string_list_clear(&states->stale, 1);
 827        string_list_clear(&states->tracked, 0);
 828        string_list_clear(&states->heads, 0);
 829        string_list_clear_func(&states->push, clear_push_info);
 830}
 831
 832static int append_ref_to_tracked_list(const char *refname,
 833        const struct object_id *oid, int flags, void *cb_data)
 834{
 835        struct ref_states *states = cb_data;
 836        struct refspec refspec;
 837
 838        if (flags & REF_ISSYMREF)
 839                return 0;
 840
 841        memset(&refspec, 0, sizeof(refspec));
 842        refspec.dst = (char *)refname;
 843        if (!remote_find_tracking(states->remote, &refspec))
 844                string_list_append(&states->tracked, abbrev_branch(refspec.src));
 845
 846        return 0;
 847}
 848
 849static int get_remote_ref_states(const char *name,
 850                                 struct ref_states *states,
 851                                 int query)
 852{
 853        struct transport *transport;
 854        const struct ref *remote_refs;
 855
 856        states->remote = remote_get(name);
 857        if (!states->remote)
 858                return error(_("No such remote: %s"), name);
 859
 860        read_branches();
 861
 862        if (query) {
 863                transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 864                        states->remote->url[0] : NULL);
 865                remote_refs = transport_get_remote_refs(transport);
 866                transport_disconnect(transport);
 867
 868                states->queried = 1;
 869                if (query & GET_REF_STATES)
 870                        get_ref_states(remote_refs, states);
 871                if (query & GET_HEAD_NAMES)
 872                        get_head_names(remote_refs, states);
 873                if (query & GET_PUSH_REF_STATES)
 874                        get_push_ref_states(remote_refs, states);
 875        } else {
 876                for_each_ref(append_ref_to_tracked_list, states);
 877                string_list_sort(&states->tracked);
 878                get_push_ref_states_noquery(states);
 879        }
 880
 881        return 0;
 882}
 883
 884struct show_info {
 885        struct string_list *list;
 886        struct ref_states *states;
 887        int width, width2;
 888        int any_rebase;
 889};
 890
 891static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 892{
 893        struct show_info *info = cb_data;
 894        int n = strlen(item->string);
 895        if (n > info->width)
 896                info->width = n;
 897        string_list_insert(info->list, item->string);
 898        return 0;
 899}
 900
 901static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 902{
 903        struct show_info *info = cb_data;
 904        struct ref_states *states = info->states;
 905        const char *name = item->string;
 906
 907        if (states->queried) {
 908                const char *fmt = "%s";
 909                const char *arg = "";
 910                if (string_list_has_string(&states->new, name)) {
 911                        fmt = _(" new (next fetch will store in remotes/%s)");
 912                        arg = states->remote->name;
 913                } else if (string_list_has_string(&states->tracked, name))
 914                        arg = _(" tracked");
 915                else if (string_list_has_string(&states->stale, name))
 916                        arg = _(" stale (use 'git remote prune' to remove)");
 917                else
 918                        arg = _(" ???");
 919                printf("    %-*s", info->width, name);
 920                printf(fmt, arg);
 921                printf("\n");
 922        } else
 923                printf("    %s\n", name);
 924
 925        return 0;
 926}
 927
 928static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 929{
 930        struct show_info *show_info = cb_data;
 931        struct ref_states *states = show_info->states;
 932        struct branch_info *branch_info = branch_item->util;
 933        struct string_list_item *item;
 934        int n;
 935
 936        if (!branch_info->merge.nr || !branch_info->remote_name ||
 937            strcmp(states->remote->name, branch_info->remote_name))
 938                return 0;
 939        if ((n = strlen(branch_item->string)) > show_info->width)
 940                show_info->width = n;
 941        if (branch_info->rebase)
 942                show_info->any_rebase = 1;
 943
 944        item = string_list_insert(show_info->list, branch_item->string);
 945        item->util = branch_info;
 946
 947        return 0;
 948}
 949
 950static int show_local_info_item(struct string_list_item *item, void *cb_data)
 951{
 952        struct show_info *show_info = cb_data;
 953        struct branch_info *branch_info = item->util;
 954        struct string_list *merge = &branch_info->merge;
 955        const char *also;
 956        int i;
 957
 958        if (branch_info->rebase && branch_info->merge.nr > 1) {
 959                error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"),
 960                        item->string);
 961                return 0;
 962        }
 963
 964        printf("    %-*s ", show_info->width, item->string);
 965        if (branch_info->rebase) {
 966                printf_ln(_(branch_info->rebase == INTERACTIVE_REBASE ?
 967                        "rebases interactively onto remote %s" :
 968                        "rebases onto remote %s"), merge->items[0].string);
 969                return 0;
 970        } else if (show_info->any_rebase) {
 971                printf_ln(_(" merges with remote %s"), merge->items[0].string);
 972                also = _("    and with remote");
 973        } else {
 974                printf_ln(_("merges with remote %s"), merge->items[0].string);
 975                also = _("   and with remote");
 976        }
 977        for (i = 1; i < merge->nr; i++)
 978                printf("    %-*s %s %s\n", show_info->width, "", also,
 979                       merge->items[i].string);
 980
 981        return 0;
 982}
 983
 984static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
 985{
 986        struct show_info *show_info = cb_data;
 987        struct push_info *push_info = push_item->util;
 988        struct string_list_item *item;
 989        int n;
 990        if ((n = strlen(push_item->string)) > show_info->width)
 991                show_info->width = n;
 992        if ((n = strlen(push_info->dest)) > show_info->width2)
 993                show_info->width2 = n;
 994        item = string_list_append(show_info->list, push_item->string);
 995        item->util = push_item->util;
 996        return 0;
 997}
 998
 999/*
1000 * Sorting comparison for a string list that has push_info
1001 * structs in its util field
1002 */
1003static int cmp_string_with_push(const void *va, const void *vb)
1004{
1005        const struct string_list_item *a = va;
1006        const struct string_list_item *b = vb;
1007        const struct push_info *a_push = a->util;
1008        const struct push_info *b_push = b->util;
1009        int cmp = strcmp(a->string, b->string);
1010        return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1011}
1012
1013static int show_push_info_item(struct string_list_item *item, void *cb_data)
1014{
1015        struct show_info *show_info = cb_data;
1016        struct push_info *push_info = item->util;
1017        const char *src = item->string, *status = NULL;
1018
1019        switch (push_info->status) {
1020        case PUSH_STATUS_CREATE:
1021                status = _("create");
1022                break;
1023        case PUSH_STATUS_DELETE:
1024                status = _("delete");
1025                src = _("(none)");
1026                break;
1027        case PUSH_STATUS_UPTODATE:
1028                status = _("up to date");
1029                break;
1030        case PUSH_STATUS_FASTFORWARD:
1031                status = _("fast-forwardable");
1032                break;
1033        case PUSH_STATUS_OUTOFDATE:
1034                status = _("local out of date");
1035                break;
1036        case PUSH_STATUS_NOTQUERIED:
1037                break;
1038        }
1039        if (status) {
1040                if (push_info->forced)
1041                        printf_ln(_("    %-*s forces to %-*s (%s)"), show_info->width, src,
1042                               show_info->width2, push_info->dest, status);
1043                else
1044                        printf_ln(_("    %-*s pushes to %-*s (%s)"), show_info->width, src,
1045                               show_info->width2, push_info->dest, status);
1046        } else {
1047                if (push_info->forced)
1048                        printf_ln(_("    %-*s forces to %s"), show_info->width, src,
1049                               push_info->dest);
1050                else
1051                        printf_ln(_("    %-*s pushes to %s"), show_info->width, src,
1052                               push_info->dest);
1053        }
1054        return 0;
1055}
1056
1057static int get_one_entry(struct remote *remote, void *priv)
1058{
1059        struct string_list *list = priv;
1060        struct strbuf url_buf = STRBUF_INIT;
1061        const char **url;
1062        int i, url_nr;
1063
1064        if (remote->url_nr > 0) {
1065                strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1066                string_list_append(list, remote->name)->util =
1067                                strbuf_detach(&url_buf, NULL);
1068        } else
1069                string_list_append(list, remote->name)->util = NULL;
1070        if (remote->pushurl_nr) {
1071                url = remote->pushurl;
1072                url_nr = remote->pushurl_nr;
1073        } else {
1074                url = remote->url;
1075                url_nr = remote->url_nr;
1076        }
1077        for (i = 0; i < url_nr; i++)
1078        {
1079                strbuf_addf(&url_buf, "%s (push)", url[i]);
1080                string_list_append(list, remote->name)->util =
1081                                strbuf_detach(&url_buf, NULL);
1082        }
1083
1084        return 0;
1085}
1086
1087static int show_all(void)
1088{
1089        struct string_list list = STRING_LIST_INIT_NODUP;
1090        int result;
1091
1092        list.strdup_strings = 1;
1093        result = for_each_remote(get_one_entry, &list);
1094
1095        if (!result) {
1096                int i;
1097
1098                string_list_sort(&list);
1099                for (i = 0; i < list.nr; i++) {
1100                        struct string_list_item *item = list.items + i;
1101                        if (verbose)
1102                                printf("%s\t%s\n", item->string,
1103                                        item->util ? (const char *)item->util : "");
1104                        else {
1105                                if (i && !strcmp((item - 1)->string, item->string))
1106                                        continue;
1107                                printf("%s\n", item->string);
1108                        }
1109                }
1110        }
1111        string_list_clear(&list, 1);
1112        return result;
1113}
1114
1115static int show(int argc, const char **argv)
1116{
1117        int no_query = 0, result = 0, query_flag = 0;
1118        struct option options[] = {
1119                OPT_BOOL('n', NULL, &no_query, N_("do not query remotes")),
1120                OPT_END()
1121        };
1122        struct ref_states states;
1123        struct string_list info_list = STRING_LIST_INIT_NODUP;
1124        struct show_info info;
1125
1126        argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1127                             0);
1128
1129        if (argc < 1)
1130                return show_all();
1131
1132        if (!no_query)
1133                query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1134
1135        memset(&states, 0, sizeof(states));
1136        memset(&info, 0, sizeof(info));
1137        info.states = &states;
1138        info.list = &info_list;
1139        for (; argc; argc--, argv++) {
1140                int i;
1141                const char **url;
1142                int url_nr;
1143
1144                get_remote_ref_states(*argv, &states, query_flag);
1145
1146                printf_ln(_("* remote %s"), *argv);
1147                printf_ln(_("  Fetch URL: %s"), states.remote->url_nr > 0 ?
1148                       states.remote->url[0] : _("(no URL)"));
1149                if (states.remote->pushurl_nr) {
1150                        url = states.remote->pushurl;
1151                        url_nr = states.remote->pushurl_nr;
1152                } else {
1153                        url = states.remote->url;
1154                        url_nr = states.remote->url_nr;
1155                }
1156                for (i = 0; i < url_nr; i++)
1157                        printf_ln(_("  Push  URL: %s"), url[i]);
1158                if (!i)
1159                        printf_ln(_("  Push  URL: %s"), "(no URL)");
1160                if (no_query)
1161                        printf_ln(_("  HEAD branch: %s"), "(not queried)");
1162                else if (!states.heads.nr)
1163                        printf_ln(_("  HEAD branch: %s"), "(unknown)");
1164                else if (states.heads.nr == 1)
1165                        printf_ln(_("  HEAD branch: %s"), states.heads.items[0].string);
1166                else {
1167                        printf(_("  HEAD branch (remote HEAD is ambiguous,"
1168                                 " may be one of the following):\n"));
1169                        for (i = 0; i < states.heads.nr; i++)
1170                                printf("    %s\n", states.heads.items[i].string);
1171                }
1172
1173                /* remote branch info */
1174                info.width = 0;
1175                for_each_string_list(&states.new, add_remote_to_show_info, &info);
1176                for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1177                for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1178                if (info.list->nr)
1179                        printf_ln(Q_("  Remote branch:%s",
1180                                     "  Remote branches:%s",
1181                                     info.list->nr),
1182                                  no_query ? _(" (status not queried)") : "");
1183                for_each_string_list(info.list, show_remote_info_item, &info);
1184                string_list_clear(info.list, 0);
1185
1186                /* git pull info */
1187                info.width = 0;
1188                info.any_rebase = 0;
1189                for_each_string_list(&branch_list, add_local_to_show_info, &info);
1190                if (info.list->nr)
1191                        printf_ln(Q_("  Local branch configured for 'git pull':",
1192                                     "  Local branches configured for 'git pull':",
1193                                     info.list->nr));
1194                for_each_string_list(info.list, show_local_info_item, &info);
1195                string_list_clear(info.list, 0);
1196
1197                /* git push info */
1198                if (states.remote->mirror)
1199                        printf_ln(_("  Local refs will be mirrored by 'git push'"));
1200
1201                info.width = info.width2 = 0;
1202                for_each_string_list(&states.push, add_push_to_show_info, &info);
1203                qsort(info.list->items, info.list->nr,
1204                        sizeof(*info.list->items), cmp_string_with_push);
1205                if (info.list->nr)
1206                        printf_ln(Q_("  Local ref configured for 'git push'%s:",
1207                                     "  Local refs configured for 'git push'%s:",
1208                                     info.list->nr),
1209                                  no_query ? _(" (status not queried)") : "");
1210                for_each_string_list(info.list, show_push_info_item, &info);
1211                string_list_clear(info.list, 0);
1212
1213                free_remote_ref_states(&states);
1214        }
1215
1216        return result;
1217}
1218
1219static int set_head(int argc, const char **argv)
1220{
1221        int i, opt_a = 0, opt_d = 0, result = 0;
1222        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1223        char *head_name = NULL;
1224
1225        struct option options[] = {
1226                OPT_BOOL('a', "auto", &opt_a,
1227                         N_("set refs/remotes/<name>/HEAD according to remote")),
1228                OPT_BOOL('d', "delete", &opt_d,
1229                         N_("delete refs/remotes/<name>/HEAD")),
1230                OPT_END()
1231        };
1232        argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1233                             0);
1234        if (argc)
1235                strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1236
1237        if (!opt_a && !opt_d && argc == 2) {
1238                head_name = xstrdup(argv[1]);
1239        } else if (opt_a && !opt_d && argc == 1) {
1240                struct ref_states states;
1241                memset(&states, 0, sizeof(states));
1242                get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1243                if (!states.heads.nr)
1244                        result |= error(_("Cannot determine remote HEAD"));
1245                else if (states.heads.nr > 1) {
1246                        result |= error(_("Multiple remote HEAD branches. "
1247                                          "Please choose one explicitly with:"));
1248                        for (i = 0; i < states.heads.nr; i++)
1249                                fprintf(stderr, "  git remote set-head %s %s\n",
1250                                        argv[0], states.heads.items[i].string);
1251                } else
1252                        head_name = xstrdup(states.heads.items[0].string);
1253                free_remote_ref_states(&states);
1254        } else if (opt_d && !opt_a && argc == 1) {
1255                if (delete_ref(buf.buf, NULL, REF_NODEREF))
1256                        result |= error(_("Could not delete %s"), buf.buf);
1257        } else
1258                usage_with_options(builtin_remote_sethead_usage, options);
1259
1260        if (head_name) {
1261                strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1262                /* make sure it's valid */
1263                if (!ref_exists(buf2.buf))
1264                        result |= error(_("Not a valid ref: %s"), buf2.buf);
1265                else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1266                        result |= error(_("Could not setup %s"), buf.buf);
1267                if (opt_a)
1268                        printf("%s/HEAD set to %s\n", argv[0], head_name);
1269                free(head_name);
1270        }
1271
1272        strbuf_release(&buf);
1273        strbuf_release(&buf2);
1274        return result;
1275}
1276
1277static int prune_remote(const char *remote, int dry_run)
1278{
1279        int result = 0;
1280        struct ref_states states;
1281        struct string_list refs_to_prune = STRING_LIST_INIT_NODUP;
1282        struct string_list_item *item;
1283        const char *dangling_msg = dry_run
1284                ? _(" %s will become dangling!")
1285                : _(" %s has become dangling!");
1286
1287        memset(&states, 0, sizeof(states));
1288        get_remote_ref_states(remote, &states, GET_REF_STATES);
1289
1290        if (!states.stale.nr) {
1291                free_remote_ref_states(&states);
1292                return 0;
1293        }
1294
1295        printf_ln(_("Pruning %s"), remote);
1296        printf_ln(_("URL: %s"),
1297                  states.remote->url_nr
1298                  ? states.remote->url[0]
1299                  : _("(no URL)"));
1300
1301        for_each_string_list_item(item, &states.stale)
1302                string_list_append(&refs_to_prune, item->util);
1303        string_list_sort(&refs_to_prune);
1304
1305        if (!dry_run)
1306                result |= delete_refs(&refs_to_prune);
1307
1308        for_each_string_list_item(item, &states.stale) {
1309                const char *refname = item->util;
1310
1311                if (dry_run)
1312                        printf_ln(_(" * [would prune] %s"),
1313                               abbrev_ref(refname, "refs/remotes/"));
1314                else
1315                        printf_ln(_(" * [pruned] %s"),
1316                               abbrev_ref(refname, "refs/remotes/"));
1317        }
1318
1319        warn_dangling_symrefs(stdout, dangling_msg, &refs_to_prune);
1320
1321        string_list_clear(&refs_to_prune, 0);
1322        free_remote_ref_states(&states);
1323        return result;
1324}
1325
1326static int prune(int argc, const char **argv)
1327{
1328        int dry_run = 0, result = 0;
1329        struct option options[] = {
1330                OPT__DRY_RUN(&dry_run, N_("dry run")),
1331                OPT_END()
1332        };
1333
1334        argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1335                             0);
1336
1337        if (argc < 1)
1338                usage_with_options(builtin_remote_prune_usage, options);
1339
1340        for (; argc; argc--, argv++)
1341                result |= prune_remote(*argv, dry_run);
1342
1343        return result;
1344}
1345
1346static int get_remote_default(const char *key, const char *value, void *priv)
1347{
1348        if (strcmp(key, "remotes.default") == 0) {
1349                int *found = priv;
1350                *found = 1;
1351        }
1352        return 0;
1353}
1354
1355static int update(int argc, const char **argv)
1356{
1357        int i, prune = -1;
1358        struct option options[] = {
1359                OPT_BOOL('p', "prune", &prune,
1360                         N_("prune remotes after fetching")),
1361                OPT_END()
1362        };
1363        struct argv_array fetch_argv = ARGV_ARRAY_INIT;
1364        int default_defined = 0;
1365        int retval;
1366
1367        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1368                             PARSE_OPT_KEEP_ARGV0);
1369
1370        argv_array_push(&fetch_argv, "fetch");
1371
1372        if (prune != -1)
1373                argv_array_push(&fetch_argv, prune ? "--prune" : "--no-prune");
1374        if (verbose)
1375                argv_array_push(&fetch_argv, "-v");
1376        argv_array_push(&fetch_argv, "--multiple");
1377        if (argc < 2)
1378                argv_array_push(&fetch_argv, "default");
1379        for (i = 1; i < argc; i++)
1380                argv_array_push(&fetch_argv, argv[i]);
1381
1382        if (strcmp(fetch_argv.argv[fetch_argv.argc-1], "default") == 0) {
1383                git_config(get_remote_default, &default_defined);
1384                if (!default_defined) {
1385                        argv_array_pop(&fetch_argv);
1386                        argv_array_push(&fetch_argv, "--all");
1387                }
1388        }
1389
1390        retval = run_command_v_opt(fetch_argv.argv, RUN_GIT_CMD);
1391        argv_array_clear(&fetch_argv);
1392        return retval;
1393}
1394
1395static int remove_all_fetch_refspecs(const char *remote, const char *key)
1396{
1397        return git_config_set_multivar_gently(key, NULL, NULL, 1);
1398}
1399
1400static void add_branches(struct remote *remote, const char **branches,
1401                         const char *key)
1402{
1403        const char *remotename = remote->name;
1404        int mirror = remote->mirror;
1405        struct strbuf refspec = STRBUF_INIT;
1406
1407        for (; *branches; branches++)
1408                add_branch(key, *branches, remotename, mirror, &refspec);
1409
1410        strbuf_release(&refspec);
1411}
1412
1413static int set_remote_branches(const char *remotename, const char **branches,
1414                                int add_mode)
1415{
1416        struct strbuf key = STRBUF_INIT;
1417        struct remote *remote;
1418
1419        strbuf_addf(&key, "remote.%s.fetch", remotename);
1420
1421        remote = remote_get(remotename);
1422        if (!remote_is_configured(remote))
1423                die(_("No such remote '%s'"), remotename);
1424
1425        if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
1426                strbuf_release(&key);
1427                return 1;
1428        }
1429        add_branches(remote, branches, key.buf);
1430
1431        strbuf_release(&key);
1432        return 0;
1433}
1434
1435static int set_branches(int argc, const char **argv)
1436{
1437        int add_mode = 0;
1438        struct option options[] = {
1439                OPT_BOOL('\0', "add", &add_mode, N_("add branch")),
1440                OPT_END()
1441        };
1442
1443        argc = parse_options(argc, argv, NULL, options,
1444                             builtin_remote_setbranches_usage, 0);
1445        if (argc == 0) {
1446                error(_("no remote specified"));
1447                usage_with_options(builtin_remote_setbranches_usage, options);
1448        }
1449        argv[argc] = NULL;
1450
1451        return set_remote_branches(argv[0], argv + 1, add_mode);
1452}
1453
1454static int get_url(int argc, const char **argv)
1455{
1456        int i, push_mode = 0, all_mode = 0;
1457        const char *remotename = NULL;
1458        struct remote *remote;
1459        const char **url;
1460        int url_nr;
1461        struct option options[] = {
1462                OPT_BOOL('\0', "push", &push_mode,
1463                         N_("query push URLs rather than fetch URLs")),
1464                OPT_BOOL('\0', "all", &all_mode,
1465                         N_("return all URLs")),
1466                OPT_END()
1467        };
1468        argc = parse_options(argc, argv, NULL, options, builtin_remote_geturl_usage, 0);
1469
1470        if (argc != 1)
1471                usage_with_options(builtin_remote_geturl_usage, options);
1472
1473        remotename = argv[0];
1474
1475        remote = remote_get(remotename);
1476        if (!remote_is_configured(remote))
1477                die(_("No such remote '%s'"), remotename);
1478
1479        url_nr = 0;
1480        if (push_mode) {
1481                url = remote->pushurl;
1482                url_nr = remote->pushurl_nr;
1483        }
1484        /* else fetch mode */
1485
1486        /* Use the fetch URL when no push URLs were found or requested. */
1487        if (!url_nr) {
1488                url = remote->url;
1489                url_nr = remote->url_nr;
1490        }
1491
1492        if (!url_nr)
1493                die(_("no URLs configured for remote '%s'"), remotename);
1494
1495        if (all_mode) {
1496                for (i = 0; i < url_nr; i++)
1497                        printf_ln("%s", url[i]);
1498        } else {
1499                printf_ln("%s", *url);
1500        }
1501
1502        return 0;
1503}
1504
1505static int set_url(int argc, const char **argv)
1506{
1507        int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1508        int matches = 0, negative_matches = 0;
1509        const char *remotename = NULL;
1510        const char *newurl = NULL;
1511        const char *oldurl = NULL;
1512        struct remote *remote;
1513        regex_t old_regex;
1514        const char **urlset;
1515        int urlset_nr;
1516        struct strbuf name_buf = STRBUF_INIT;
1517        struct option options[] = {
1518                OPT_BOOL('\0', "push", &push_mode,
1519                         N_("manipulate push URLs")),
1520                OPT_BOOL('\0', "add", &add_mode,
1521                         N_("add URL")),
1522                OPT_BOOL('\0', "delete", &delete_mode,
1523                            N_("delete URLs")),
1524                OPT_END()
1525        };
1526        argc = parse_options(argc, argv, NULL, options, builtin_remote_seturl_usage,
1527                             PARSE_OPT_KEEP_ARGV0);
1528
1529        if (add_mode && delete_mode)
1530                die(_("--add --delete doesn't make sense"));
1531
1532        if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1533                usage_with_options(builtin_remote_seturl_usage, options);
1534
1535        remotename = argv[1];
1536        newurl = argv[2];
1537        if (argc > 3)
1538                oldurl = argv[3];
1539
1540        if (delete_mode)
1541                oldurl = newurl;
1542
1543        remote = remote_get(remotename);
1544        if (!remote_is_configured(remote))
1545                die(_("No such remote '%s'"), remotename);
1546
1547        if (push_mode) {
1548                strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1549                urlset = remote->pushurl;
1550                urlset_nr = remote->pushurl_nr;
1551        } else {
1552                strbuf_addf(&name_buf, "remote.%s.url", remotename);
1553                urlset = remote->url;
1554                urlset_nr = remote->url_nr;
1555        }
1556
1557        /* Special cases that add new entry. */
1558        if ((!oldurl && !delete_mode) || add_mode) {
1559                if (add_mode)
1560                        git_config_set_multivar(name_buf.buf, newurl,
1561                                                       "^$", 0);
1562                else
1563                        git_config_set(name_buf.buf, newurl);
1564                strbuf_release(&name_buf);
1565
1566                return 0;
1567        }
1568
1569        /* Old URL specified. Demand that one matches. */
1570        if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1571                die(_("Invalid old URL pattern: %s"), oldurl);
1572
1573        for (i = 0; i < urlset_nr; i++)
1574                if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1575                        matches++;
1576                else
1577                        negative_matches++;
1578        if (!delete_mode && !matches)
1579                die(_("No such URL found: %s"), oldurl);
1580        if (delete_mode && !negative_matches && !push_mode)
1581                die(_("Will not delete all non-push URLs"));
1582
1583        regfree(&old_regex);
1584
1585        if (!delete_mode)
1586                git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1587        else
1588                git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1589        return 0;
1590}
1591
1592int cmd_remote(int argc, const char **argv, const char *prefix)
1593{
1594        struct option options[] = {
1595                OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")),
1596                OPT_END()
1597        };
1598        int result;
1599
1600        argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1601                PARSE_OPT_STOP_AT_NON_OPTION);
1602
1603        if (argc < 1)
1604                result = show_all();
1605        else if (!strcmp(argv[0], "add"))
1606                result = add(argc, argv);
1607        else if (!strcmp(argv[0], "rename"))
1608                result = mv(argc, argv);
1609        else if (!strcmp(argv[0], "rm") || !strcmp(argv[0], "remove"))
1610                result = rm(argc, argv);
1611        else if (!strcmp(argv[0], "set-head"))
1612                result = set_head(argc, argv);
1613        else if (!strcmp(argv[0], "set-branches"))
1614                result = set_branches(argc, argv);
1615        else if (!strcmp(argv[0], "get-url"))
1616                result = get_url(argc, argv);
1617        else if (!strcmp(argv[0], "set-url"))
1618                result = set_url(argc, argv);
1619        else if (!strcmp(argv[0], "show"))
1620                result = show(argc, argv);
1621        else if (!strcmp(argv[0], "prune"))
1622                result = prune(argc, argv);
1623        else if (!strcmp(argv[0], "update"))
1624                result = update(argc, argv);
1625        else {
1626                error(_("Unknown subcommand: %s"), argv[0]);
1627                usage_with_options(builtin_remote_usage, options);
1628        }
1629
1630        return result ? 1 : 0;
1631}