builtin / remote.con commit submodule: try harder to fetch needed sha1 by direct fetching sha1 (fb43e31)
   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                oidcpy(&ref->new_oid, &ref->peer_ref->new_oid);
 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_oid(&ref->new_oid)) {
 414                        info->status = PUSH_STATUS_DELETE;
 415                } else if (!oidcmp(&ref->old_oid, &ref->new_oid))
 416                        info->status = PUSH_STATUS_UPTODATE;
 417                else if (is_null_oid(&ref->old_oid))
 418                        info->status = PUSH_STATUS_CREATE;
 419                else if (has_object_file(&ref->old_oid) &&
 420                         ref_newer(&ref->new_oid, &ref->old_oid))
 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
 591        strbuf_addf(&buf, "remote.%s.url", remote->name);
 592        for (i = 0; i < remote->url_nr; i++)
 593                if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0))
 594                        return error(_("Could not append '%s' to '%s'"),
 595                                        remote->url[i], buf.buf);
 596        strbuf_reset(&buf);
 597        strbuf_addf(&buf, "remote.%s.push", remote->name);
 598        for (i = 0; i < remote->push_refspec_nr; i++)
 599                if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0))
 600                        return error(_("Could not append '%s' to '%s'"),
 601                                        remote->push_refspec[i], buf.buf);
 602        strbuf_reset(&buf);
 603        strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 604        for (i = 0; i < remote->fetch_refspec_nr; i++)
 605                if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0))
 606                        return error(_("Could not append '%s' to '%s'"),
 607                                        remote->fetch_refspec[i], buf.buf);
 608        if (remote->origin == REMOTE_REMOTES)
 609                unlink_or_warn(git_path("remotes/%s", remote->name));
 610        else if (remote->origin == REMOTE_BRANCHES)
 611                unlink_or_warn(git_path("branches/%s", remote->name));
 612        return 0;
 613}
 614
 615static int mv(int argc, const char **argv)
 616{
 617        struct option options[] = {
 618                OPT_END()
 619        };
 620        struct remote *oldremote, *newremote;
 621        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT,
 622                old_remote_context = STRBUF_INIT;
 623        struct string_list remote_branches = STRING_LIST_INIT_NODUP;
 624        struct rename_info rename;
 625        int i, refspec_updated = 0;
 626
 627        if (argc != 3)
 628                usage_with_options(builtin_remote_rename_usage, options);
 629
 630        rename.old = argv[1];
 631        rename.new = argv[2];
 632        rename.remote_branches = &remote_branches;
 633
 634        oldremote = remote_get(rename.old);
 635        if (!oldremote)
 636                die(_("No such remote: %s"), rename.old);
 637
 638        if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
 639                return migrate_file(oldremote);
 640
 641        newremote = remote_get(rename.new);
 642        if (newremote && (newremote->url_nr > 1 || newremote->fetch_refspec_nr))
 643                die(_("remote %s already exists."), rename.new);
 644
 645        strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
 646        if (!valid_fetch_refspec(buf.buf))
 647                die(_("'%s' is not a valid remote name"), rename.new);
 648
 649        strbuf_reset(&buf);
 650        strbuf_addf(&buf, "remote.%s", rename.old);
 651        strbuf_addf(&buf2, "remote.%s", rename.new);
 652        if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 653                return error(_("Could not rename config section '%s' to '%s'"),
 654                                buf.buf, buf2.buf);
 655
 656        strbuf_reset(&buf);
 657        strbuf_addf(&buf, "remote.%s.fetch", rename.new);
 658        if (git_config_set_multivar(buf.buf, NULL, NULL, 1))
 659                return error(_("Could not remove config section '%s'"), buf.buf);
 660        strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old);
 661        for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 662                char *ptr;
 663
 664                strbuf_reset(&buf2);
 665                strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 666                ptr = strstr(buf2.buf, old_remote_context.buf);
 667                if (ptr) {
 668                        refspec_updated = 1;
 669                        strbuf_splice(&buf2,
 670                                      ptr-buf2.buf + strlen(":refs/remotes/"),
 671                                      strlen(rename.old), rename.new,
 672                                      strlen(rename.new));
 673                } else
 674                        warning(_("Not updating non-default fetch refspec\n"
 675                                  "\t%s\n"
 676                                  "\tPlease update the configuration manually if necessary."),
 677                                buf2.buf);
 678
 679                if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 680                        return error(_("Could not append '%s'"), buf.buf);
 681        }
 682
 683        read_branches();
 684        for (i = 0; i < branch_list.nr; i++) {
 685                struct string_list_item *item = branch_list.items + i;
 686                struct branch_info *info = item->util;
 687                if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 688                        strbuf_reset(&buf);
 689                        strbuf_addf(&buf, "branch.%s.remote", item->string);
 690                        if (git_config_set(buf.buf, rename.new)) {
 691                                return error(_("Could not set '%s'"), buf.buf);
 692                        }
 693                }
 694        }
 695
 696        if (!refspec_updated)
 697                return 0;
 698
 699        /*
 700         * First remove symrefs, then rename the rest, finally create
 701         * the new symrefs.
 702         */
 703        for_each_ref(read_remote_branches, &rename);
 704        for (i = 0; i < remote_branches.nr; i++) {
 705                struct string_list_item *item = remote_branches.items + i;
 706                int flag = 0;
 707                struct object_id oid;
 708
 709                read_ref_full(item->string, RESOLVE_REF_READING, oid.hash, &flag);
 710                if (!(flag & REF_ISSYMREF))
 711                        continue;
 712                if (delete_ref(item->string, NULL, REF_NODEREF))
 713                        die(_("deleting '%s' failed"), item->string);
 714        }
 715        for (i = 0; i < remote_branches.nr; i++) {
 716                struct string_list_item *item = remote_branches.items + i;
 717
 718                if (item->util)
 719                        continue;
 720                strbuf_reset(&buf);
 721                strbuf_addstr(&buf, item->string);
 722                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 723                                rename.new, strlen(rename.new));
 724                strbuf_reset(&buf2);
 725                strbuf_addf(&buf2, "remote: renamed %s to %s",
 726                                item->string, buf.buf);
 727                if (rename_ref(item->string, buf.buf, buf2.buf))
 728                        die(_("renaming '%s' failed"), item->string);
 729        }
 730        for (i = 0; i < remote_branches.nr; i++) {
 731                struct string_list_item *item = remote_branches.items + i;
 732
 733                if (!item->util)
 734                        continue;
 735                strbuf_reset(&buf);
 736                strbuf_addstr(&buf, item->string);
 737                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 738                                rename.new, strlen(rename.new));
 739                strbuf_reset(&buf2);
 740                strbuf_addstr(&buf2, item->util);
 741                strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
 742                                rename.new, strlen(rename.new));
 743                strbuf_reset(&buf3);
 744                strbuf_addf(&buf3, "remote: renamed %s to %s",
 745                                item->string, buf.buf);
 746                if (create_symref(buf.buf, buf2.buf, buf3.buf))
 747                        die(_("creating '%s' failed"), buf.buf);
 748        }
 749        return 0;
 750}
 751
 752static int rm(int argc, const char **argv)
 753{
 754        struct option options[] = {
 755                OPT_END()
 756        };
 757        struct remote *remote;
 758        struct strbuf buf = STRBUF_INIT;
 759        struct known_remotes known_remotes = { NULL, NULL };
 760        struct string_list branches = STRING_LIST_INIT_DUP;
 761        struct string_list skipped = STRING_LIST_INIT_DUP;
 762        struct branches_for_remote cb_data;
 763        int i, result;
 764
 765        memset(&cb_data, 0, sizeof(cb_data));
 766        cb_data.branches = &branches;
 767        cb_data.skipped = &skipped;
 768        cb_data.keep = &known_remotes;
 769
 770        if (argc != 2)
 771                usage_with_options(builtin_remote_rm_usage, options);
 772
 773        remote = remote_get(argv[1]);
 774        if (!remote)
 775                die(_("No such remote: %s"), argv[1]);
 776
 777        known_remotes.to_delete = remote;
 778        for_each_remote(add_known_remote, &known_remotes);
 779
 780        read_branches();
 781        for (i = 0; i < branch_list.nr; i++) {
 782                struct string_list_item *item = branch_list.items + i;
 783                struct branch_info *info = item->util;
 784                if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 785                        const char *keys[] = { "remote", "merge", NULL }, **k;
 786                        for (k = keys; *k; k++) {
 787                                strbuf_reset(&buf);
 788                                strbuf_addf(&buf, "branch.%s.%s",
 789                                                item->string, *k);
 790                                if (git_config_set(buf.buf, NULL)) {
 791                                        strbuf_release(&buf);
 792                                        return -1;
 793                                }
 794                        }
 795                }
 796        }
 797
 798        /*
 799         * We cannot just pass a function to for_each_ref() which deletes
 800         * the branches one by one, since for_each_ref() relies on cached
 801         * refs, which are invalidated when deleting a branch.
 802         */
 803        cb_data.remote = remote;
 804        result = for_each_ref(add_branch_for_removal, &cb_data);
 805        strbuf_release(&buf);
 806
 807        if (!result)
 808                result = delete_refs(&branches);
 809        string_list_clear(&branches, 0);
 810
 811        if (skipped.nr) {
 812                fprintf_ln(stderr,
 813                           Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 814                              "to delete it, use:",
 815                              "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 816                              "to delete them, use:",
 817                              skipped.nr));
 818                for (i = 0; i < skipped.nr; i++)
 819                        fprintf(stderr, "  git branch -d %s\n",
 820                                skipped.items[i].string);
 821        }
 822        string_list_clear(&skipped, 0);
 823
 824        if (!result) {
 825                strbuf_addf(&buf, "remote.%s", remote->name);
 826                if (git_config_rename_section(buf.buf, NULL) < 1)
 827                        return error(_("Could not remove config section '%s'"), buf.buf);
 828        }
 829
 830        return result;
 831}
 832
 833static void clear_push_info(void *util, const char *string)
 834{
 835        struct push_info *info = util;
 836        free(info->dest);
 837        free(info);
 838}
 839
 840static void free_remote_ref_states(struct ref_states *states)
 841{
 842        string_list_clear(&states->new, 0);
 843        string_list_clear(&states->stale, 1);
 844        string_list_clear(&states->tracked, 0);
 845        string_list_clear(&states->heads, 0);
 846        string_list_clear_func(&states->push, clear_push_info);
 847}
 848
 849static int append_ref_to_tracked_list(const char *refname,
 850        const struct object_id *oid, int flags, void *cb_data)
 851{
 852        struct ref_states *states = cb_data;
 853        struct refspec refspec;
 854
 855        if (flags & REF_ISSYMREF)
 856                return 0;
 857
 858        memset(&refspec, 0, sizeof(refspec));
 859        refspec.dst = (char *)refname;
 860        if (!remote_find_tracking(states->remote, &refspec))
 861                string_list_append(&states->tracked, abbrev_branch(refspec.src));
 862
 863        return 0;
 864}
 865
 866static int get_remote_ref_states(const char *name,
 867                                 struct ref_states *states,
 868                                 int query)
 869{
 870        struct transport *transport;
 871        const struct ref *remote_refs;
 872
 873        states->remote = remote_get(name);
 874        if (!states->remote)
 875                return error(_("No such remote: %s"), name);
 876
 877        read_branches();
 878
 879        if (query) {
 880                transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 881                        states->remote->url[0] : NULL);
 882                remote_refs = transport_get_remote_refs(transport);
 883                transport_disconnect(transport);
 884
 885                states->queried = 1;
 886                if (query & GET_REF_STATES)
 887                        get_ref_states(remote_refs, states);
 888                if (query & GET_HEAD_NAMES)
 889                        get_head_names(remote_refs, states);
 890                if (query & GET_PUSH_REF_STATES)
 891                        get_push_ref_states(remote_refs, states);
 892        } else {
 893                for_each_ref(append_ref_to_tracked_list, states);
 894                string_list_sort(&states->tracked);
 895                get_push_ref_states_noquery(states);
 896        }
 897
 898        return 0;
 899}
 900
 901struct show_info {
 902        struct string_list *list;
 903        struct ref_states *states;
 904        int width, width2;
 905        int any_rebase;
 906};
 907
 908static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 909{
 910        struct show_info *info = cb_data;
 911        int n = strlen(item->string);
 912        if (n > info->width)
 913                info->width = n;
 914        string_list_insert(info->list, item->string);
 915        return 0;
 916}
 917
 918static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 919{
 920        struct show_info *info = cb_data;
 921        struct ref_states *states = info->states;
 922        const char *name = item->string;
 923
 924        if (states->queried) {
 925                const char *fmt = "%s";
 926                const char *arg = "";
 927                if (string_list_has_string(&states->new, name)) {
 928                        fmt = _(" new (next fetch will store in remotes/%s)");
 929                        arg = states->remote->name;
 930                } else if (string_list_has_string(&states->tracked, name))
 931                        arg = _(" tracked");
 932                else if (string_list_has_string(&states->stale, name))
 933                        arg = _(" stale (use 'git remote prune' to remove)");
 934                else
 935                        arg = _(" ???");
 936                printf("    %-*s", info->width, name);
 937                printf(fmt, arg);
 938                printf("\n");
 939        } else
 940                printf("    %s\n", name);
 941
 942        return 0;
 943}
 944
 945static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 946{
 947        struct show_info *show_info = cb_data;
 948        struct ref_states *states = show_info->states;
 949        struct branch_info *branch_info = branch_item->util;
 950        struct string_list_item *item;
 951        int n;
 952
 953        if (!branch_info->merge.nr || !branch_info->remote_name ||
 954            strcmp(states->remote->name, branch_info->remote_name))
 955                return 0;
 956        if ((n = strlen(branch_item->string)) > show_info->width)
 957                show_info->width = n;
 958        if (branch_info->rebase)
 959                show_info->any_rebase = 1;
 960
 961        item = string_list_insert(show_info->list, branch_item->string);
 962        item->util = branch_info;
 963
 964        return 0;
 965}
 966
 967static int show_local_info_item(struct string_list_item *item, void *cb_data)
 968{
 969        struct show_info *show_info = cb_data;
 970        struct branch_info *branch_info = item->util;
 971        struct string_list *merge = &branch_info->merge;
 972        const char *also;
 973        int i;
 974
 975        if (branch_info->rebase && branch_info->merge.nr > 1) {
 976                error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"),
 977                        item->string);
 978                return 0;
 979        }
 980
 981        printf("    %-*s ", show_info->width, item->string);
 982        if (branch_info->rebase) {
 983                printf_ln(_("rebases onto remote %s"), merge->items[0].string);
 984                return 0;
 985        } else if (show_info->any_rebase) {
 986                printf_ln(_(" merges with remote %s"), merge->items[0].string);
 987                also = _("    and with remote");
 988        } else {
 989                printf_ln(_("merges with remote %s"), merge->items[0].string);
 990                also = _("   and with remote");
 991        }
 992        for (i = 1; i < merge->nr; i++)
 993                printf("    %-*s %s %s\n", show_info->width, "", also,
 994                       merge->items[i].string);
 995
 996        return 0;
 997}
 998
 999static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
1000{
1001        struct show_info *show_info = cb_data;
1002        struct push_info *push_info = push_item->util;
1003        struct string_list_item *item;
1004        int n;
1005        if ((n = strlen(push_item->string)) > show_info->width)
1006                show_info->width = n;
1007        if ((n = strlen(push_info->dest)) > show_info->width2)
1008                show_info->width2 = n;
1009        item = string_list_append(show_info->list, push_item->string);
1010        item->util = push_item->util;
1011        return 0;
1012}
1013
1014/*
1015 * Sorting comparison for a string list that has push_info
1016 * structs in its util field
1017 */
1018static int cmp_string_with_push(const void *va, const void *vb)
1019{
1020        const struct string_list_item *a = va;
1021        const struct string_list_item *b = vb;
1022        const struct push_info *a_push = a->util;
1023        const struct push_info *b_push = b->util;
1024        int cmp = strcmp(a->string, b->string);
1025        return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1026}
1027
1028static int show_push_info_item(struct string_list_item *item, void *cb_data)
1029{
1030        struct show_info *show_info = cb_data;
1031        struct push_info *push_info = item->util;
1032        const char *src = item->string, *status = NULL;
1033
1034        switch (push_info->status) {
1035        case PUSH_STATUS_CREATE:
1036                status = _("create");
1037                break;
1038        case PUSH_STATUS_DELETE:
1039                status = _("delete");
1040                src = _("(none)");
1041                break;
1042        case PUSH_STATUS_UPTODATE:
1043                status = _("up to date");
1044                break;
1045        case PUSH_STATUS_FASTFORWARD:
1046                status = _("fast-forwardable");
1047                break;
1048        case PUSH_STATUS_OUTOFDATE:
1049                status = _("local out of date");
1050                break;
1051        case PUSH_STATUS_NOTQUERIED:
1052                break;
1053        }
1054        if (status) {
1055                if (push_info->forced)
1056                        printf_ln(_("    %-*s forces to %-*s (%s)"), show_info->width, src,
1057                               show_info->width2, push_info->dest, status);
1058                else
1059                        printf_ln(_("    %-*s pushes to %-*s (%s)"), show_info->width, src,
1060                               show_info->width2, push_info->dest, status);
1061        } else {
1062                if (push_info->forced)
1063                        printf_ln(_("    %-*s forces to %s"), show_info->width, src,
1064                               push_info->dest);
1065                else
1066                        printf_ln(_("    %-*s pushes to %s"), show_info->width, src,
1067                               push_info->dest);
1068        }
1069        return 0;
1070}
1071
1072static int get_one_entry(struct remote *remote, void *priv)
1073{
1074        struct string_list *list = priv;
1075        struct strbuf url_buf = STRBUF_INIT;
1076        const char **url;
1077        int i, url_nr;
1078
1079        if (remote->url_nr > 0) {
1080                strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1081                string_list_append(list, remote->name)->util =
1082                                strbuf_detach(&url_buf, NULL);
1083        } else
1084                string_list_append(list, remote->name)->util = NULL;
1085        if (remote->pushurl_nr) {
1086                url = remote->pushurl;
1087                url_nr = remote->pushurl_nr;
1088        } else {
1089                url = remote->url;
1090                url_nr = remote->url_nr;
1091        }
1092        for (i = 0; i < url_nr; i++)
1093        {
1094                strbuf_addf(&url_buf, "%s (push)", url[i]);
1095                string_list_append(list, remote->name)->util =
1096                                strbuf_detach(&url_buf, NULL);
1097        }
1098
1099        return 0;
1100}
1101
1102static int show_all(void)
1103{
1104        struct string_list list = STRING_LIST_INIT_NODUP;
1105        int result;
1106
1107        list.strdup_strings = 1;
1108        result = for_each_remote(get_one_entry, &list);
1109
1110        if (!result) {
1111                int i;
1112
1113                string_list_sort(&list);
1114                for (i = 0; i < list.nr; i++) {
1115                        struct string_list_item *item = list.items + i;
1116                        if (verbose)
1117                                printf("%s\t%s\n", item->string,
1118                                        item->util ? (const char *)item->util : "");
1119                        else {
1120                                if (i && !strcmp((item - 1)->string, item->string))
1121                                        continue;
1122                                printf("%s\n", item->string);
1123                        }
1124                }
1125        }
1126        string_list_clear(&list, 1);
1127        return result;
1128}
1129
1130static int show(int argc, const char **argv)
1131{
1132        int no_query = 0, result = 0, query_flag = 0;
1133        struct option options[] = {
1134                OPT_BOOL('n', NULL, &no_query, N_("do not query remotes")),
1135                OPT_END()
1136        };
1137        struct ref_states states;
1138        struct string_list info_list = STRING_LIST_INIT_NODUP;
1139        struct show_info info;
1140
1141        argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1142                             0);
1143
1144        if (argc < 1)
1145                return show_all();
1146
1147        if (!no_query)
1148                query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1149
1150        memset(&states, 0, sizeof(states));
1151        memset(&info, 0, sizeof(info));
1152        info.states = &states;
1153        info.list = &info_list;
1154        for (; argc; argc--, argv++) {
1155                int i;
1156                const char **url;
1157                int url_nr;
1158
1159                get_remote_ref_states(*argv, &states, query_flag);
1160
1161                printf_ln(_("* remote %s"), *argv);
1162                printf_ln(_("  Fetch URL: %s"), states.remote->url_nr > 0 ?
1163                       states.remote->url[0] : _("(no URL)"));
1164                if (states.remote->pushurl_nr) {
1165                        url = states.remote->pushurl;
1166                        url_nr = states.remote->pushurl_nr;
1167                } else {
1168                        url = states.remote->url;
1169                        url_nr = states.remote->url_nr;
1170                }
1171                for (i = 0; i < url_nr; i++)
1172                        printf_ln(_("  Push  URL: %s"), url[i]);
1173                if (!i)
1174                        printf_ln(_("  Push  URL: %s"), "(no URL)");
1175                if (no_query)
1176                        printf_ln(_("  HEAD branch: %s"), "(not queried)");
1177                else if (!states.heads.nr)
1178                        printf_ln(_("  HEAD branch: %s"), "(unknown)");
1179                else if (states.heads.nr == 1)
1180                        printf_ln(_("  HEAD branch: %s"), states.heads.items[0].string);
1181                else {
1182                        printf(_("  HEAD branch (remote HEAD is ambiguous,"
1183                                 " may be one of the following):\n"));
1184                        for (i = 0; i < states.heads.nr; i++)
1185                                printf("    %s\n", states.heads.items[i].string);
1186                }
1187
1188                /* remote branch info */
1189                info.width = 0;
1190                for_each_string_list(&states.new, add_remote_to_show_info, &info);
1191                for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1192                for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1193                if (info.list->nr)
1194                        printf_ln(Q_("  Remote branch:%s",
1195                                     "  Remote branches:%s",
1196                                     info.list->nr),
1197                                  no_query ? _(" (status not queried)") : "");
1198                for_each_string_list(info.list, show_remote_info_item, &info);
1199                string_list_clear(info.list, 0);
1200
1201                /* git pull info */
1202                info.width = 0;
1203                info.any_rebase = 0;
1204                for_each_string_list(&branch_list, add_local_to_show_info, &info);
1205                if (info.list->nr)
1206                        printf_ln(Q_("  Local branch configured for 'git pull':",
1207                                     "  Local branches configured for 'git pull':",
1208                                     info.list->nr));
1209                for_each_string_list(info.list, show_local_info_item, &info);
1210                string_list_clear(info.list, 0);
1211
1212                /* git push info */
1213                if (states.remote->mirror)
1214                        printf_ln(_("  Local refs will be mirrored by 'git push'"));
1215
1216                info.width = info.width2 = 0;
1217                for_each_string_list(&states.push, add_push_to_show_info, &info);
1218                qsort(info.list->items, info.list->nr,
1219                        sizeof(*info.list->items), cmp_string_with_push);
1220                if (info.list->nr)
1221                        printf_ln(Q_("  Local ref configured for 'git push'%s:",
1222                                     "  Local refs configured for 'git push'%s:",
1223                                     info.list->nr),
1224                                  no_query ? _(" (status not queried)") : "");
1225                for_each_string_list(info.list, show_push_info_item, &info);
1226                string_list_clear(info.list, 0);
1227
1228                free_remote_ref_states(&states);
1229        }
1230
1231        return result;
1232}
1233
1234static int set_head(int argc, const char **argv)
1235{
1236        int i, opt_a = 0, opt_d = 0, result = 0;
1237        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1238        char *head_name = NULL;
1239
1240        struct option options[] = {
1241                OPT_BOOL('a', "auto", &opt_a,
1242                         N_("set refs/remotes/<name>/HEAD according to remote")),
1243                OPT_BOOL('d', "delete", &opt_d,
1244                         N_("delete refs/remotes/<name>/HEAD")),
1245                OPT_END()
1246        };
1247        argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1248                             0);
1249        if (argc)
1250                strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1251
1252        if (!opt_a && !opt_d && argc == 2) {
1253                head_name = xstrdup(argv[1]);
1254        } else if (opt_a && !opt_d && argc == 1) {
1255                struct ref_states states;
1256                memset(&states, 0, sizeof(states));
1257                get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1258                if (!states.heads.nr)
1259                        result |= error(_("Cannot determine remote HEAD"));
1260                else if (states.heads.nr > 1) {
1261                        result |= error(_("Multiple remote HEAD branches. "
1262                                          "Please choose one explicitly with:"));
1263                        for (i = 0; i < states.heads.nr; i++)
1264                                fprintf(stderr, "  git remote set-head %s %s\n",
1265                                        argv[0], states.heads.items[i].string);
1266                } else
1267                        head_name = xstrdup(states.heads.items[0].string);
1268                free_remote_ref_states(&states);
1269        } else if (opt_d && !opt_a && argc == 1) {
1270                if (delete_ref(buf.buf, NULL, REF_NODEREF))
1271                        result |= error(_("Could not delete %s"), buf.buf);
1272        } else
1273                usage_with_options(builtin_remote_sethead_usage, options);
1274
1275        if (head_name) {
1276                strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1277                /* make sure it's valid */
1278                if (!ref_exists(buf2.buf))
1279                        result |= error(_("Not a valid ref: %s"), buf2.buf);
1280                else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1281                        result |= error(_("Could not setup %s"), buf.buf);
1282                if (opt_a)
1283                        printf("%s/HEAD set to %s\n", argv[0], head_name);
1284                free(head_name);
1285        }
1286
1287        strbuf_release(&buf);
1288        strbuf_release(&buf2);
1289        return result;
1290}
1291
1292static int prune_remote(const char *remote, int dry_run)
1293{
1294        int result = 0;
1295        struct ref_states states;
1296        struct string_list refs_to_prune = STRING_LIST_INIT_NODUP;
1297        struct string_list_item *item;
1298        const char *dangling_msg = dry_run
1299                ? _(" %s will become dangling!")
1300                : _(" %s has become dangling!");
1301
1302        memset(&states, 0, sizeof(states));
1303        get_remote_ref_states(remote, &states, GET_REF_STATES);
1304
1305        if (!states.stale.nr) {
1306                free_remote_ref_states(&states);
1307                return 0;
1308        }
1309
1310        printf_ln(_("Pruning %s"), remote);
1311        printf_ln(_("URL: %s"),
1312                  states.remote->url_nr
1313                  ? states.remote->url[0]
1314                  : _("(no URL)"));
1315
1316        for_each_string_list_item(item, &states.stale)
1317                string_list_append(&refs_to_prune, item->util);
1318        string_list_sort(&refs_to_prune);
1319
1320        if (!dry_run)
1321                result |= delete_refs(&refs_to_prune);
1322
1323        for_each_string_list_item(item, &states.stale) {
1324                const char *refname = item->util;
1325
1326                if (dry_run)
1327                        printf_ln(_(" * [would prune] %s"),
1328                               abbrev_ref(refname, "refs/remotes/"));
1329                else
1330                        printf_ln(_(" * [pruned] %s"),
1331                               abbrev_ref(refname, "refs/remotes/"));
1332        }
1333
1334        warn_dangling_symrefs(stdout, dangling_msg, &refs_to_prune);
1335
1336        string_list_clear(&refs_to_prune, 0);
1337        free_remote_ref_states(&states);
1338        return result;
1339}
1340
1341static int prune(int argc, const char **argv)
1342{
1343        int dry_run = 0, result = 0;
1344        struct option options[] = {
1345                OPT__DRY_RUN(&dry_run, N_("dry run")),
1346                OPT_END()
1347        };
1348
1349        argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1350                             0);
1351
1352        if (argc < 1)
1353                usage_with_options(builtin_remote_prune_usage, options);
1354
1355        for (; argc; argc--, argv++)
1356                result |= prune_remote(*argv, dry_run);
1357
1358        return result;
1359}
1360
1361static int get_remote_default(const char *key, const char *value, void *priv)
1362{
1363        if (strcmp(key, "remotes.default") == 0) {
1364                int *found = priv;
1365                *found = 1;
1366        }
1367        return 0;
1368}
1369
1370static int update(int argc, const char **argv)
1371{
1372        int i, prune = -1;
1373        struct option options[] = {
1374                OPT_BOOL('p', "prune", &prune,
1375                         N_("prune remotes after fetching")),
1376                OPT_END()
1377        };
1378        struct argv_array fetch_argv = ARGV_ARRAY_INIT;
1379        int default_defined = 0;
1380        int retval;
1381
1382        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1383                             PARSE_OPT_KEEP_ARGV0);
1384
1385        argv_array_push(&fetch_argv, "fetch");
1386
1387        if (prune != -1)
1388                argv_array_push(&fetch_argv, prune ? "--prune" : "--no-prune");
1389        if (verbose)
1390                argv_array_push(&fetch_argv, "-v");
1391        argv_array_push(&fetch_argv, "--multiple");
1392        if (argc < 2)
1393                argv_array_push(&fetch_argv, "default");
1394        for (i = 1; i < argc; i++)
1395                argv_array_push(&fetch_argv, argv[i]);
1396
1397        if (strcmp(fetch_argv.argv[fetch_argv.argc-1], "default") == 0) {
1398                git_config(get_remote_default, &default_defined);
1399                if (!default_defined) {
1400                        argv_array_pop(&fetch_argv);
1401                        argv_array_push(&fetch_argv, "--all");
1402                }
1403        }
1404
1405        retval = run_command_v_opt(fetch_argv.argv, RUN_GIT_CMD);
1406        argv_array_clear(&fetch_argv);
1407        return retval;
1408}
1409
1410static int remove_all_fetch_refspecs(const char *remote, const char *key)
1411{
1412        return git_config_set_multivar(key, NULL, NULL, 1);
1413}
1414
1415static int add_branches(struct remote *remote, const char **branches,
1416                        const char *key)
1417{
1418        const char *remotename = remote->name;
1419        int mirror = remote->mirror;
1420        struct strbuf refspec = STRBUF_INIT;
1421
1422        for (; *branches; branches++)
1423                if (add_branch(key, *branches, remotename, mirror, &refspec)) {
1424                        strbuf_release(&refspec);
1425                        return 1;
1426                }
1427
1428        strbuf_release(&refspec);
1429        return 0;
1430}
1431
1432static int set_remote_branches(const char *remotename, const char **branches,
1433                                int add_mode)
1434{
1435        struct strbuf key = STRBUF_INIT;
1436        struct remote *remote;
1437
1438        strbuf_addf(&key, "remote.%s.fetch", remotename);
1439
1440        if (!remote_is_configured(remotename))
1441                die(_("No such remote '%s'"), remotename);
1442        remote = remote_get(remotename);
1443
1444        if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
1445                strbuf_release(&key);
1446                return 1;
1447        }
1448        if (add_branches(remote, branches, key.buf)) {
1449                strbuf_release(&key);
1450                return 1;
1451        }
1452
1453        strbuf_release(&key);
1454        return 0;
1455}
1456
1457static int set_branches(int argc, const char **argv)
1458{
1459        int add_mode = 0;
1460        struct option options[] = {
1461                OPT_BOOL('\0', "add", &add_mode, N_("add branch")),
1462                OPT_END()
1463        };
1464
1465        argc = parse_options(argc, argv, NULL, options,
1466                             builtin_remote_setbranches_usage, 0);
1467        if (argc == 0) {
1468                error(_("no remote specified"));
1469                usage_with_options(builtin_remote_setbranches_usage, options);
1470        }
1471        argv[argc] = NULL;
1472
1473        return set_remote_branches(argv[0], argv + 1, add_mode);
1474}
1475
1476static int get_url(int argc, const char **argv)
1477{
1478        int i, push_mode = 0, all_mode = 0;
1479        const char *remotename = NULL;
1480        struct remote *remote;
1481        const char **url;
1482        int url_nr;
1483        struct option options[] = {
1484                OPT_BOOL('\0', "push", &push_mode,
1485                         N_("query push URLs rather than fetch URLs")),
1486                OPT_BOOL('\0', "all", &all_mode,
1487                         N_("return all URLs")),
1488                OPT_END()
1489        };
1490        argc = parse_options(argc, argv, NULL, options, builtin_remote_geturl_usage, 0);
1491
1492        if (argc != 1)
1493                usage_with_options(builtin_remote_geturl_usage, options);
1494
1495        remotename = argv[0];
1496
1497        if (!remote_is_configured(remotename))
1498                die(_("No such remote '%s'"), remotename);
1499        remote = remote_get(remotename);
1500
1501        url_nr = 0;
1502        if (push_mode) {
1503                url = remote->pushurl;
1504                url_nr = remote->pushurl_nr;
1505        }
1506        /* else fetch mode */
1507
1508        /* Use the fetch URL when no push URLs were found or requested. */
1509        if (!url_nr) {
1510                url = remote->url;
1511                url_nr = remote->url_nr;
1512        }
1513
1514        if (!url_nr)
1515                die(_("no URLs configured for remote '%s'"), remotename);
1516
1517        if (all_mode) {
1518                for (i = 0; i < url_nr; i++)
1519                        printf_ln("%s", url[i]);
1520        } else {
1521                printf_ln("%s", *url);
1522        }
1523
1524        return 0;
1525}
1526
1527static int set_url(int argc, const char **argv)
1528{
1529        int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1530        int matches = 0, negative_matches = 0;
1531        const char *remotename = NULL;
1532        const char *newurl = NULL;
1533        const char *oldurl = NULL;
1534        struct remote *remote;
1535        regex_t old_regex;
1536        const char **urlset;
1537        int urlset_nr;
1538        struct strbuf name_buf = STRBUF_INIT;
1539        struct option options[] = {
1540                OPT_BOOL('\0', "push", &push_mode,
1541                         N_("manipulate push URLs")),
1542                OPT_BOOL('\0', "add", &add_mode,
1543                         N_("add URL")),
1544                OPT_BOOL('\0', "delete", &delete_mode,
1545                            N_("delete URLs")),
1546                OPT_END()
1547        };
1548        argc = parse_options(argc, argv, NULL, options, builtin_remote_seturl_usage,
1549                             PARSE_OPT_KEEP_ARGV0);
1550
1551        if (add_mode && delete_mode)
1552                die(_("--add --delete doesn't make sense"));
1553
1554        if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1555                usage_with_options(builtin_remote_seturl_usage, options);
1556
1557        remotename = argv[1];
1558        newurl = argv[2];
1559        if (argc > 3)
1560                oldurl = argv[3];
1561
1562        if (delete_mode)
1563                oldurl = newurl;
1564
1565        if (!remote_is_configured(remotename))
1566                die(_("No such remote '%s'"), remotename);
1567        remote = remote_get(remotename);
1568
1569        if (push_mode) {
1570                strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1571                urlset = remote->pushurl;
1572                urlset_nr = remote->pushurl_nr;
1573        } else {
1574                strbuf_addf(&name_buf, "remote.%s.url", remotename);
1575                urlset = remote->url;
1576                urlset_nr = remote->url_nr;
1577        }
1578
1579        /* Special cases that add new entry. */
1580        if ((!oldurl && !delete_mode) || add_mode) {
1581                if (add_mode)
1582                        git_config_set_multivar(name_buf.buf, newurl,
1583                                "^$", 0);
1584                else
1585                        git_config_set(name_buf.buf, newurl);
1586                strbuf_release(&name_buf);
1587                return 0;
1588        }
1589
1590        /* Old URL specified. Demand that one matches. */
1591        if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1592                die(_("Invalid old URL pattern: %s"), oldurl);
1593
1594        for (i = 0; i < urlset_nr; i++)
1595                if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1596                        matches++;
1597                else
1598                        negative_matches++;
1599        if (!delete_mode && !matches)
1600                die(_("No such URL found: %s"), oldurl);
1601        if (delete_mode && !negative_matches && !push_mode)
1602                die(_("Will not delete all non-push URLs"));
1603
1604        regfree(&old_regex);
1605
1606        if (!delete_mode)
1607                git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1608        else
1609                git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1610        return 0;
1611}
1612
1613int cmd_remote(int argc, const char **argv, const char *prefix)
1614{
1615        struct option options[] = {
1616                OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")),
1617                OPT_END()
1618        };
1619        int result;
1620
1621        argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1622                PARSE_OPT_STOP_AT_NON_OPTION);
1623
1624        if (argc < 1)
1625                result = show_all();
1626        else if (!strcmp(argv[0], "add"))
1627                result = add(argc, argv);
1628        else if (!strcmp(argv[0], "rename"))
1629                result = mv(argc, argv);
1630        else if (!strcmp(argv[0], "rm") || !strcmp(argv[0], "remove"))
1631                result = rm(argc, argv);
1632        else if (!strcmp(argv[0], "set-head"))
1633                result = set_head(argc, argv);
1634        else if (!strcmp(argv[0], "set-branches"))
1635                result = set_branches(argc, argv);
1636        else if (!strcmp(argv[0], "get-url"))
1637                result = get_url(argc, argv);
1638        else if (!strcmp(argv[0], "set-url"))
1639                result = set_url(argc, argv);
1640        else if (!strcmp(argv[0], "show"))
1641                result = show(argc, argv);
1642        else if (!strcmp(argv[0], "prune"))
1643                result = prune(argc, argv);
1644        else if (!strcmp(argv[0], "update"))
1645                result = update(argc, argv);
1646        else {
1647                error(_("Unknown subcommand: %s"), argv[0]);
1648                usage_with_options(builtin_remote_usage, options);
1649        }
1650
1651        return result ? 1 : 0;
1652}