builtin / remote.con commit ref-filter: implement '--points-at' option (6841104)
   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 set-url [--push] <name> <newurl> [<oldurl>]"),
  22        N_("git remote set-url --add <name> <newurl>"),
  23        N_("git remote set-url --delete <name> <url>"),
  24        NULL
  25};
  26
  27static const char * const builtin_remote_add_usage[] = {
  28        N_("git remote add [<options>] <name> <url>"),
  29        NULL
  30};
  31
  32static const char * const builtin_remote_rename_usage[] = {
  33        N_("git remote rename <old> <new>"),
  34        NULL
  35};
  36
  37static const char * const builtin_remote_rm_usage[] = {
  38        N_("git remote remove <name>"),
  39        NULL
  40};
  41
  42static const char * const builtin_remote_sethead_usage[] = {
  43        N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
  44        NULL
  45};
  46
  47static const char * const builtin_remote_setbranches_usage[] = {
  48        N_("git remote set-branches <name> <branch>..."),
  49        N_("git remote set-branches --add <name> <branch>..."),
  50        NULL
  51};
  52
  53static const char * const builtin_remote_show_usage[] = {
  54        N_("git remote show [<options>] <name>"),
  55        NULL
  56};
  57
  58static const char * const builtin_remote_prune_usage[] = {
  59        N_("git remote prune [<options>] <name>"),
  60        NULL
  61};
  62
  63static const char * const builtin_remote_update_usage[] = {
  64        N_("git remote update [<options>] [<group> | <remote>]..."),
  65        NULL
  66};
  67
  68static const char * const builtin_remote_seturl_usage[] = {
  69        N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
  70        N_("git remote set-url --add <name> <newurl>"),
  71        N_("git remote set-url --delete <name> <url>"),
  72        NULL
  73};
  74
  75#define GET_REF_STATES (1<<0)
  76#define GET_HEAD_NAMES (1<<1)
  77#define GET_PUSH_REF_STATES (1<<2)
  78
  79static int verbose;
  80
  81static int fetch_remote(const char *name)
  82{
  83        const char *argv[] = { "fetch", name, NULL, NULL };
  84        if (verbose) {
  85                argv[1] = "-v";
  86                argv[2] = name;
  87        }
  88        printf_ln(_("Updating %s"), name);
  89        if (run_command_v_opt(argv, RUN_GIT_CMD))
  90                return error(_("Could not fetch %s"), name);
  91        return 0;
  92}
  93
  94enum {
  95        TAGS_UNSET = 0,
  96        TAGS_DEFAULT = 1,
  97        TAGS_SET = 2
  98};
  99
 100#define MIRROR_NONE 0
 101#define MIRROR_FETCH 1
 102#define MIRROR_PUSH 2
 103#define MIRROR_BOTH (MIRROR_FETCH|MIRROR_PUSH)
 104
 105static int add_branch(const char *key, const char *branchname,
 106                const char *remotename, int mirror, struct strbuf *tmp)
 107{
 108        strbuf_reset(tmp);
 109        strbuf_addch(tmp, '+');
 110        if (mirror)
 111                strbuf_addf(tmp, "refs/%s:refs/%s",
 112                                branchname, branchname);
 113        else
 114                strbuf_addf(tmp, "refs/heads/%s:refs/remotes/%s/%s",
 115                                branchname, remotename, branchname);
 116        return git_config_set_multivar(key, tmp->buf, "^$", 0);
 117}
 118
 119static const char mirror_advice[] =
 120N_("--mirror is dangerous and deprecated; please\n"
 121   "\t use --mirror=fetch or --mirror=push instead");
 122
 123static int parse_mirror_opt(const struct option *opt, const char *arg, int not)
 124{
 125        unsigned *mirror = opt->value;
 126        if (not)
 127                *mirror = MIRROR_NONE;
 128        else if (!arg) {
 129                warning("%s", _(mirror_advice));
 130                *mirror = MIRROR_BOTH;
 131        }
 132        else if (!strcmp(arg, "fetch"))
 133                *mirror = MIRROR_FETCH;
 134        else if (!strcmp(arg, "push"))
 135                *mirror = MIRROR_PUSH;
 136        else
 137                return error(_("unknown mirror argument: %s"), arg);
 138        return 0;
 139}
 140
 141static int add(int argc, const char **argv)
 142{
 143        int fetch = 0, fetch_tags = TAGS_DEFAULT;
 144        unsigned mirror = MIRROR_NONE;
 145        struct string_list track = STRING_LIST_INIT_NODUP;
 146        const char *master = NULL;
 147        struct remote *remote;
 148        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
 149        const char *name, *url;
 150        int i;
 151
 152        struct option options[] = {
 153                OPT_BOOL('f', "fetch", &fetch, N_("fetch the remote branches")),
 154                OPT_SET_INT(0, "tags", &fetch_tags,
 155                            N_("import all tags and associated objects when fetching"),
 156                            TAGS_SET),
 157                OPT_SET_INT(0, NULL, &fetch_tags,
 158                            N_("or do not fetch any tag at all (--no-tags)"), TAGS_UNSET),
 159                OPT_STRING_LIST('t', "track", &track, N_("branch"),
 160                                N_("branch(es) to track")),
 161                OPT_STRING('m', "master", &master, N_("branch"), N_("master branch")),
 162                { OPTION_CALLBACK, 0, "mirror", &mirror, N_("push|fetch"),
 163                        N_("set up remote as a mirror to push to or fetch from"),
 164                        PARSE_OPT_OPTARG, parse_mirror_opt },
 165                OPT_END()
 166        };
 167
 168        argc = parse_options(argc, argv, NULL, options, builtin_remote_add_usage,
 169                             0);
 170
 171        if (argc != 2)
 172                usage_with_options(builtin_remote_add_usage, options);
 173
 174        if (mirror && master)
 175                die(_("specifying a master branch makes no sense with --mirror"));
 176        if (mirror && !(mirror & MIRROR_FETCH) && track.nr)
 177                die(_("specifying branches to track makes sense only with fetch mirrors"));
 178
 179        name = argv[0];
 180        url = argv[1];
 181
 182        remote = remote_get(name);
 183        if (remote && (remote->url_nr > 1 ||
 184                        (strcmp(name, remote->url[0]) &&
 185                                strcmp(url, remote->url[0])) ||
 186                        remote->fetch_refspec_nr))
 187                die(_("remote %s already exists."), name);
 188
 189        strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
 190        if (!valid_fetch_refspec(buf2.buf))
 191                die(_("'%s' is not a valid remote name"), name);
 192
 193        strbuf_addf(&buf, "remote.%s.url", name);
 194        if (git_config_set(buf.buf, url))
 195                return 1;
 196
 197        if (!mirror || mirror & MIRROR_FETCH) {
 198                strbuf_reset(&buf);
 199                strbuf_addf(&buf, "remote.%s.fetch", name);
 200                if (track.nr == 0)
 201                        string_list_append(&track, "*");
 202                for (i = 0; i < track.nr; i++) {
 203                        if (add_branch(buf.buf, track.items[i].string,
 204                                       name, mirror, &buf2))
 205                                return 1;
 206                }
 207        }
 208
 209        if (mirror & MIRROR_PUSH) {
 210                strbuf_reset(&buf);
 211                strbuf_addf(&buf, "remote.%s.mirror", name);
 212                if (git_config_set(buf.buf, "true"))
 213                        return 1;
 214        }
 215
 216        if (fetch_tags != TAGS_DEFAULT) {
 217                strbuf_reset(&buf);
 218                strbuf_addf(&buf, "remote.%s.tagopt", name);
 219                if (git_config_set(buf.buf,
 220                        fetch_tags == TAGS_SET ? "--tags" : "--no-tags"))
 221                        return 1;
 222        }
 223
 224        if (fetch && fetch_remote(name))
 225                return 1;
 226
 227        if (master) {
 228                strbuf_reset(&buf);
 229                strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
 230
 231                strbuf_reset(&buf2);
 232                strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
 233
 234                if (create_symref(buf.buf, buf2.buf, "remote add"))
 235                        return error(_("Could not setup master '%s'"), master);
 236        }
 237
 238        strbuf_release(&buf);
 239        strbuf_release(&buf2);
 240        string_list_clear(&track, 0);
 241
 242        return 0;
 243}
 244
 245struct branch_info {
 246        char *remote_name;
 247        struct string_list merge;
 248        int rebase;
 249};
 250
 251static struct string_list branch_list;
 252
 253static const char *abbrev_ref(const char *name, const char *prefix)
 254{
 255        skip_prefix(name, prefix, &name);
 256        return name;
 257}
 258#define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 259
 260static int config_read_branches(const char *key, const char *value, void *cb)
 261{
 262        if (starts_with(key, "branch.")) {
 263                const char *orig_key = key;
 264                char *name;
 265                struct string_list_item *item;
 266                struct branch_info *info;
 267                enum { REMOTE, MERGE, REBASE } type;
 268                size_t key_len;
 269
 270                key += 7;
 271                if (strip_suffix(key, ".remote", &key_len)) {
 272                        name = xmemdupz(key, key_len);
 273                        type = REMOTE;
 274                } else if (strip_suffix(key, ".merge", &key_len)) {
 275                        name = xmemdupz(key, key_len);
 276                        type = MERGE;
 277                } else if (strip_suffix(key, ".rebase", &key_len)) {
 278                        name = xmemdupz(key, key_len);
 279                        type = REBASE;
 280                } else
 281                        return 0;
 282
 283                item = string_list_insert(&branch_list, name);
 284
 285                if (!item->util)
 286                        item->util = xcalloc(1, sizeof(struct branch_info));
 287                info = item->util;
 288                if (type == REMOTE) {
 289                        if (info->remote_name)
 290                                warning(_("more than one %s"), orig_key);
 291                        info->remote_name = xstrdup(value);
 292                } else if (type == MERGE) {
 293                        char *space = strchr(value, ' ');
 294                        value = abbrev_branch(value);
 295                        while (space) {
 296                                char *merge;
 297                                merge = xstrndup(value, space - value);
 298                                string_list_append(&info->merge, merge);
 299                                value = abbrev_branch(space + 1);
 300                                space = strchr(value, ' ');
 301                        }
 302                        string_list_append(&info->merge, xstrdup(value));
 303                } else {
 304                        int v = git_config_maybe_bool(orig_key, value);
 305                        if (v >= 0)
 306                                info->rebase = v;
 307                        else if (!strcmp(value, "preserve"))
 308                                info->rebase = 1;
 309                }
 310        }
 311        return 0;
 312}
 313
 314static void read_branches(void)
 315{
 316        if (branch_list.nr)
 317                return;
 318        git_config(config_read_branches, NULL);
 319}
 320
 321struct ref_states {
 322        struct remote *remote;
 323        struct string_list new, stale, tracked, heads, push;
 324        int queried;
 325};
 326
 327static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 328{
 329        struct ref *fetch_map = NULL, **tail = &fetch_map;
 330        struct ref *ref, *stale_refs;
 331        int i;
 332
 333        for (i = 0; i < states->remote->fetch_refspec_nr; i++)
 334                if (get_fetch_map(remote_refs, states->remote->fetch + i, &tail, 1))
 335                        die(_("Could not get fetch map for refspec %s"),
 336                                states->remote->fetch_refspec[i]);
 337
 338        states->new.strdup_strings = 1;
 339        states->tracked.strdup_strings = 1;
 340        states->stale.strdup_strings = 1;
 341        for (ref = fetch_map; ref; ref = ref->next) {
 342                if (!ref->peer_ref || !ref_exists(ref->peer_ref->name))
 343                        string_list_append(&states->new, abbrev_branch(ref->name));
 344                else
 345                        string_list_append(&states->tracked, abbrev_branch(ref->name));
 346        }
 347        stale_refs = get_stale_heads(states->remote->fetch,
 348                                     states->remote->fetch_refspec_nr, fetch_map);
 349        for (ref = stale_refs; ref; ref = ref->next) {
 350                struct string_list_item *item =
 351                        string_list_append(&states->stale, abbrev_branch(ref->name));
 352                item->util = xstrdup(ref->name);
 353        }
 354        free_refs(stale_refs);
 355        free_refs(fetch_map);
 356
 357        string_list_sort(&states->new);
 358        string_list_sort(&states->tracked);
 359        string_list_sort(&states->stale);
 360
 361        return 0;
 362}
 363
 364struct push_info {
 365        char *dest;
 366        int forced;
 367        enum {
 368                PUSH_STATUS_CREATE = 0,
 369                PUSH_STATUS_DELETE,
 370                PUSH_STATUS_UPTODATE,
 371                PUSH_STATUS_FASTFORWARD,
 372                PUSH_STATUS_OUTOFDATE,
 373                PUSH_STATUS_NOTQUERIED
 374        } status;
 375};
 376
 377static int get_push_ref_states(const struct ref *remote_refs,
 378        struct ref_states *states)
 379{
 380        struct remote *remote = states->remote;
 381        struct ref *ref, *local_refs, *push_map;
 382        if (remote->mirror)
 383                return 0;
 384
 385        local_refs = get_local_heads();
 386        push_map = copy_ref_list(remote_refs);
 387
 388        match_push_refs(local_refs, &push_map, remote->push_refspec_nr,
 389                        remote->push_refspec, MATCH_REFS_NONE);
 390
 391        states->push.strdup_strings = 1;
 392        for (ref = push_map; ref; ref = ref->next) {
 393                struct string_list_item *item;
 394                struct push_info *info;
 395
 396                if (!ref->peer_ref)
 397                        continue;
 398                hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
 399
 400                item = string_list_append(&states->push,
 401                                          abbrev_branch(ref->peer_ref->name));
 402                item->util = xcalloc(1, sizeof(struct push_info));
 403                info = item->util;
 404                info->forced = ref->force;
 405                info->dest = xstrdup(abbrev_branch(ref->name));
 406
 407                if (is_null_sha1(ref->new_sha1)) {
 408                        info->status = PUSH_STATUS_DELETE;
 409                } else if (!hashcmp(ref->old_sha1, ref->new_sha1))
 410                        info->status = PUSH_STATUS_UPTODATE;
 411                else if (is_null_sha1(ref->old_sha1))
 412                        info->status = PUSH_STATUS_CREATE;
 413                else if (has_sha1_file(ref->old_sha1) &&
 414                         ref_newer(ref->new_sha1, ref->old_sha1))
 415                        info->status = PUSH_STATUS_FASTFORWARD;
 416                else
 417                        info->status = PUSH_STATUS_OUTOFDATE;
 418        }
 419        free_refs(local_refs);
 420        free_refs(push_map);
 421        return 0;
 422}
 423
 424static int get_push_ref_states_noquery(struct ref_states *states)
 425{
 426        int i;
 427        struct remote *remote = states->remote;
 428        struct string_list_item *item;
 429        struct push_info *info;
 430
 431        if (remote->mirror)
 432                return 0;
 433
 434        states->push.strdup_strings = 1;
 435        if (!remote->push_refspec_nr) {
 436                item = string_list_append(&states->push, _("(matching)"));
 437                info = item->util = xcalloc(1, sizeof(struct push_info));
 438                info->status = PUSH_STATUS_NOTQUERIED;
 439                info->dest = xstrdup(item->string);
 440        }
 441        for (i = 0; i < remote->push_refspec_nr; i++) {
 442                struct refspec *spec = remote->push + i;
 443                if (spec->matching)
 444                        item = string_list_append(&states->push, _("(matching)"));
 445                else if (strlen(spec->src))
 446                        item = string_list_append(&states->push, spec->src);
 447                else
 448                        item = string_list_append(&states->push, _("(delete)"));
 449
 450                info = item->util = xcalloc(1, sizeof(struct push_info));
 451                info->forced = spec->force;
 452                info->status = PUSH_STATUS_NOTQUERIED;
 453                info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 454        }
 455        return 0;
 456}
 457
 458static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 459{
 460        struct ref *ref, *matches;
 461        struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 462        struct refspec refspec;
 463
 464        refspec.force = 0;
 465        refspec.pattern = 1;
 466        refspec.src = refspec.dst = "refs/heads/*";
 467        states->heads.strdup_strings = 1;
 468        get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 469        matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 470                                    fetch_map, 1);
 471        for (ref = matches; ref; ref = ref->next)
 472                string_list_append(&states->heads, abbrev_branch(ref->name));
 473
 474        free_refs(fetch_map);
 475        free_refs(matches);
 476
 477        return 0;
 478}
 479
 480struct known_remote {
 481        struct known_remote *next;
 482        struct remote *remote;
 483};
 484
 485struct known_remotes {
 486        struct remote *to_delete;
 487        struct known_remote *list;
 488};
 489
 490static int add_known_remote(struct remote *remote, void *cb_data)
 491{
 492        struct known_remotes *all = cb_data;
 493        struct known_remote *r;
 494
 495        if (!strcmp(all->to_delete->name, remote->name))
 496                return 0;
 497
 498        r = xmalloc(sizeof(*r));
 499        r->remote = remote;
 500        r->next = all->list;
 501        all->list = r;
 502        return 0;
 503}
 504
 505struct branches_for_remote {
 506        struct remote *remote;
 507        struct string_list *branches, *skipped;
 508        struct known_remotes *keep;
 509};
 510
 511static int add_branch_for_removal(const char *refname,
 512        const struct object_id *oid, int flags, void *cb_data)
 513{
 514        struct branches_for_remote *branches = cb_data;
 515        struct refspec refspec;
 516        struct known_remote *kr;
 517
 518        memset(&refspec, 0, sizeof(refspec));
 519        refspec.dst = (char *)refname;
 520        if (remote_find_tracking(branches->remote, &refspec))
 521                return 0;
 522
 523        /* don't delete a branch if another remote also uses it */
 524        for (kr = branches->keep->list; kr; kr = kr->next) {
 525                memset(&refspec, 0, sizeof(refspec));
 526                refspec.dst = (char *)refname;
 527                if (!remote_find_tracking(kr->remote, &refspec))
 528                        return 0;
 529        }
 530
 531        /* don't delete non-remote-tracking refs */
 532        if (!starts_with(refname, "refs/remotes/")) {
 533                /* advise user how to delete local branches */
 534                if (starts_with(refname, "refs/heads/"))
 535                        string_list_append(branches->skipped,
 536                                           abbrev_branch(refname));
 537                /* silently skip over other non-remote refs */
 538                return 0;
 539        }
 540
 541        /* make sure that symrefs are deleted */
 542        if (flags & REF_ISSYMREF)
 543                return unlink(git_path("%s", refname));
 544
 545        string_list_append(branches->branches, refname);
 546
 547        return 0;
 548}
 549
 550struct rename_info {
 551        const char *old;
 552        const char *new;
 553        struct string_list *remote_branches;
 554};
 555
 556static int read_remote_branches(const char *refname,
 557        const struct object_id *oid, int flags, void *cb_data)
 558{
 559        struct rename_info *rename = cb_data;
 560        struct strbuf buf = STRBUF_INIT;
 561        struct string_list_item *item;
 562        int flag;
 563        struct object_id orig_oid;
 564        const char *symref;
 565
 566        strbuf_addf(&buf, "refs/remotes/%s/", rename->old);
 567        if (starts_with(refname, buf.buf)) {
 568                item = string_list_append(rename->remote_branches, xstrdup(refname));
 569                symref = resolve_ref_unsafe(refname, RESOLVE_REF_READING,
 570                                            orig_oid.hash, &flag);
 571                if (flag & REF_ISSYMREF)
 572                        item->util = xstrdup(symref);
 573                else
 574                        item->util = NULL;
 575        }
 576
 577        return 0;
 578}
 579
 580static int migrate_file(struct remote *remote)
 581{
 582        struct strbuf buf = STRBUF_INIT;
 583        int i;
 584        const char *path = NULL;
 585
 586        strbuf_addf(&buf, "remote.%s.url", remote->name);
 587        for (i = 0; i < remote->url_nr; i++)
 588                if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0))
 589                        return error(_("Could not append '%s' to '%s'"),
 590                                        remote->url[i], buf.buf);
 591        strbuf_reset(&buf);
 592        strbuf_addf(&buf, "remote.%s.push", remote->name);
 593        for (i = 0; i < remote->push_refspec_nr; i++)
 594                if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0))
 595                        return error(_("Could not append '%s' to '%s'"),
 596                                        remote->push_refspec[i], buf.buf);
 597        strbuf_reset(&buf);
 598        strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 599        for (i = 0; i < remote->fetch_refspec_nr; i++)
 600                if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0))
 601                        return error(_("Could not append '%s' to '%s'"),
 602                                        remote->fetch_refspec[i], buf.buf);
 603        if (remote->origin == REMOTE_REMOTES)
 604                path = git_path("remotes/%s", remote->name);
 605        else if (remote->origin == REMOTE_BRANCHES)
 606                path = git_path("branches/%s", remote->name);
 607        if (path)
 608                unlink_or_warn(path);
 609        return 0;
 610}
 611
 612static int mv(int argc, const char **argv)
 613{
 614        struct option options[] = {
 615                OPT_END()
 616        };
 617        struct remote *oldremote, *newremote;
 618        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT,
 619                old_remote_context = STRBUF_INIT;
 620        struct string_list remote_branches = STRING_LIST_INIT_NODUP;
 621        struct rename_info rename;
 622        int i, refspec_updated = 0;
 623
 624        if (argc != 3)
 625                usage_with_options(builtin_remote_rename_usage, options);
 626
 627        rename.old = argv[1];
 628        rename.new = argv[2];
 629        rename.remote_branches = &remote_branches;
 630
 631        oldremote = remote_get(rename.old);
 632        if (!oldremote)
 633                die(_("No such remote: %s"), rename.old);
 634
 635        if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
 636                return migrate_file(oldremote);
 637
 638        newremote = remote_get(rename.new);
 639        if (newremote && (newremote->url_nr > 1 || newremote->fetch_refspec_nr))
 640                die(_("remote %s already exists."), rename.new);
 641
 642        strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
 643        if (!valid_fetch_refspec(buf.buf))
 644                die(_("'%s' is not a valid remote name"), rename.new);
 645
 646        strbuf_reset(&buf);
 647        strbuf_addf(&buf, "remote.%s", rename.old);
 648        strbuf_addf(&buf2, "remote.%s", rename.new);
 649        if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 650                return error(_("Could not rename config section '%s' to '%s'"),
 651                                buf.buf, buf2.buf);
 652
 653        strbuf_reset(&buf);
 654        strbuf_addf(&buf, "remote.%s.fetch", rename.new);
 655        if (git_config_set_multivar(buf.buf, NULL, NULL, 1))
 656                return error(_("Could not remove config section '%s'"), buf.buf);
 657        strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old);
 658        for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 659                char *ptr;
 660
 661                strbuf_reset(&buf2);
 662                strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 663                ptr = strstr(buf2.buf, old_remote_context.buf);
 664                if (ptr) {
 665                        refspec_updated = 1;
 666                        strbuf_splice(&buf2,
 667                                      ptr-buf2.buf + strlen(":refs/remotes/"),
 668                                      strlen(rename.old), rename.new,
 669                                      strlen(rename.new));
 670                } else
 671                        warning(_("Not updating non-default fetch refspec\n"
 672                                  "\t%s\n"
 673                                  "\tPlease update the configuration manually if necessary."),
 674                                buf2.buf);
 675
 676                if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 677                        return error(_("Could not append '%s'"), buf.buf);
 678        }
 679
 680        read_branches();
 681        for (i = 0; i < branch_list.nr; i++) {
 682                struct string_list_item *item = branch_list.items + i;
 683                struct branch_info *info = item->util;
 684                if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 685                        strbuf_reset(&buf);
 686                        strbuf_addf(&buf, "branch.%s.remote", item->string);
 687                        if (git_config_set(buf.buf, rename.new)) {
 688                                return error(_("Could not set '%s'"), buf.buf);
 689                        }
 690                }
 691        }
 692
 693        if (!refspec_updated)
 694                return 0;
 695
 696        /*
 697         * First remove symrefs, then rename the rest, finally create
 698         * the new symrefs.
 699         */
 700        for_each_ref(read_remote_branches, &rename);
 701        for (i = 0; i < remote_branches.nr; i++) {
 702                struct string_list_item *item = remote_branches.items + i;
 703                int flag = 0;
 704                struct object_id oid;
 705
 706                read_ref_full(item->string, RESOLVE_REF_READING, oid.hash, &flag);
 707                if (!(flag & REF_ISSYMREF))
 708                        continue;
 709                if (delete_ref(item->string, NULL, REF_NODEREF))
 710                        die(_("deleting '%s' failed"), item->string);
 711        }
 712        for (i = 0; i < remote_branches.nr; i++) {
 713                struct string_list_item *item = remote_branches.items + i;
 714
 715                if (item->util)
 716                        continue;
 717                strbuf_reset(&buf);
 718                strbuf_addstr(&buf, item->string);
 719                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 720                                rename.new, strlen(rename.new));
 721                strbuf_reset(&buf2);
 722                strbuf_addf(&buf2, "remote: renamed %s to %s",
 723                                item->string, buf.buf);
 724                if (rename_ref(item->string, buf.buf, buf2.buf))
 725                        die(_("renaming '%s' failed"), item->string);
 726        }
 727        for (i = 0; i < remote_branches.nr; i++) {
 728                struct string_list_item *item = remote_branches.items + i;
 729
 730                if (!item->util)
 731                        continue;
 732                strbuf_reset(&buf);
 733                strbuf_addstr(&buf, item->string);
 734                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 735                                rename.new, strlen(rename.new));
 736                strbuf_reset(&buf2);
 737                strbuf_addstr(&buf2, item->util);
 738                strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
 739                                rename.new, strlen(rename.new));
 740                strbuf_reset(&buf3);
 741                strbuf_addf(&buf3, "remote: renamed %s to %s",
 742                                item->string, buf.buf);
 743                if (create_symref(buf.buf, buf2.buf, buf3.buf))
 744                        die(_("creating '%s' failed"), buf.buf);
 745        }
 746        return 0;
 747}
 748
 749static int remove_branches(struct string_list *branches)
 750{
 751        struct strbuf err = STRBUF_INIT;
 752        int i, result = 0;
 753
 754        if (repack_without_refs(branches, &err))
 755                result |= error("%s", err.buf);
 756        strbuf_release(&err);
 757
 758        for (i = 0; i < branches->nr; i++) {
 759                struct string_list_item *item = branches->items + i;
 760                const char *refname = item->string;
 761
 762                if (delete_ref(refname, NULL, 0))
 763                        result |= error(_("Could not remove branch %s"), refname);
 764        }
 765
 766        return result;
 767}
 768
 769static int rm(int argc, const char **argv)
 770{
 771        struct option options[] = {
 772                OPT_END()
 773        };
 774        struct remote *remote;
 775        struct strbuf buf = STRBUF_INIT;
 776        struct known_remotes known_remotes = { NULL, NULL };
 777        struct string_list branches = STRING_LIST_INIT_DUP;
 778        struct string_list skipped = STRING_LIST_INIT_DUP;
 779        struct branches_for_remote cb_data;
 780        int i, result;
 781
 782        memset(&cb_data, 0, sizeof(cb_data));
 783        cb_data.branches = &branches;
 784        cb_data.skipped = &skipped;
 785        cb_data.keep = &known_remotes;
 786
 787        if (argc != 2)
 788                usage_with_options(builtin_remote_rm_usage, options);
 789
 790        remote = remote_get(argv[1]);
 791        if (!remote)
 792                die(_("No such remote: %s"), argv[1]);
 793
 794        known_remotes.to_delete = remote;
 795        for_each_remote(add_known_remote, &known_remotes);
 796
 797        read_branches();
 798        for (i = 0; i < branch_list.nr; i++) {
 799                struct string_list_item *item = branch_list.items + i;
 800                struct branch_info *info = item->util;
 801                if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 802                        const char *keys[] = { "remote", "merge", NULL }, **k;
 803                        for (k = keys; *k; k++) {
 804                                strbuf_reset(&buf);
 805                                strbuf_addf(&buf, "branch.%s.%s",
 806                                                item->string, *k);
 807                                if (git_config_set(buf.buf, NULL)) {
 808                                        strbuf_release(&buf);
 809                                        return -1;
 810                                }
 811                        }
 812                }
 813        }
 814
 815        /*
 816         * We cannot just pass a function to for_each_ref() which deletes
 817         * the branches one by one, since for_each_ref() relies on cached
 818         * refs, which are invalidated when deleting a branch.
 819         */
 820        cb_data.remote = remote;
 821        result = for_each_ref(add_branch_for_removal, &cb_data);
 822        strbuf_release(&buf);
 823
 824        if (!result)
 825                result = remove_branches(&branches);
 826        string_list_clear(&branches, 0);
 827
 828        if (skipped.nr) {
 829                fprintf_ln(stderr,
 830                           Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 831                              "to delete it, use:",
 832                              "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 833                              "to delete them, use:",
 834                              skipped.nr));
 835                for (i = 0; i < skipped.nr; i++)
 836                        fprintf(stderr, "  git branch -d %s\n",
 837                                skipped.items[i].string);
 838        }
 839        string_list_clear(&skipped, 0);
 840
 841        if (!result) {
 842                strbuf_addf(&buf, "remote.%s", remote->name);
 843                if (git_config_rename_section(buf.buf, NULL) < 1)
 844                        return error(_("Could not remove config section '%s'"), buf.buf);
 845        }
 846
 847        return result;
 848}
 849
 850static void clear_push_info(void *util, const char *string)
 851{
 852        struct push_info *info = util;
 853        free(info->dest);
 854        free(info);
 855}
 856
 857static void free_remote_ref_states(struct ref_states *states)
 858{
 859        string_list_clear(&states->new, 0);
 860        string_list_clear(&states->stale, 1);
 861        string_list_clear(&states->tracked, 0);
 862        string_list_clear(&states->heads, 0);
 863        string_list_clear_func(&states->push, clear_push_info);
 864}
 865
 866static int append_ref_to_tracked_list(const char *refname,
 867        const struct object_id *oid, int flags, void *cb_data)
 868{
 869        struct ref_states *states = cb_data;
 870        struct refspec refspec;
 871
 872        if (flags & REF_ISSYMREF)
 873                return 0;
 874
 875        memset(&refspec, 0, sizeof(refspec));
 876        refspec.dst = (char *)refname;
 877        if (!remote_find_tracking(states->remote, &refspec))
 878                string_list_append(&states->tracked, abbrev_branch(refspec.src));
 879
 880        return 0;
 881}
 882
 883static int get_remote_ref_states(const char *name,
 884                                 struct ref_states *states,
 885                                 int query)
 886{
 887        struct transport *transport;
 888        const struct ref *remote_refs;
 889
 890        states->remote = remote_get(name);
 891        if (!states->remote)
 892                return error(_("No such remote: %s"), name);
 893
 894        read_branches();
 895
 896        if (query) {
 897                transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 898                        states->remote->url[0] : NULL);
 899                remote_refs = transport_get_remote_refs(transport);
 900                transport_disconnect(transport);
 901
 902                states->queried = 1;
 903                if (query & GET_REF_STATES)
 904                        get_ref_states(remote_refs, states);
 905                if (query & GET_HEAD_NAMES)
 906                        get_head_names(remote_refs, states);
 907                if (query & GET_PUSH_REF_STATES)
 908                        get_push_ref_states(remote_refs, states);
 909        } else {
 910                for_each_ref(append_ref_to_tracked_list, states);
 911                string_list_sort(&states->tracked);
 912                get_push_ref_states_noquery(states);
 913        }
 914
 915        return 0;
 916}
 917
 918struct show_info {
 919        struct string_list *list;
 920        struct ref_states *states;
 921        int width, width2;
 922        int any_rebase;
 923};
 924
 925static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 926{
 927        struct show_info *info = cb_data;
 928        int n = strlen(item->string);
 929        if (n > info->width)
 930                info->width = n;
 931        string_list_insert(info->list, item->string);
 932        return 0;
 933}
 934
 935static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 936{
 937        struct show_info *info = cb_data;
 938        struct ref_states *states = info->states;
 939        const char *name = item->string;
 940
 941        if (states->queried) {
 942                const char *fmt = "%s";
 943                const char *arg = "";
 944                if (string_list_has_string(&states->new, name)) {
 945                        fmt = _(" new (next fetch will store in remotes/%s)");
 946                        arg = states->remote->name;
 947                } else if (string_list_has_string(&states->tracked, name))
 948                        arg = _(" tracked");
 949                else if (string_list_has_string(&states->stale, name))
 950                        arg = _(" stale (use 'git remote prune' to remove)");
 951                else
 952                        arg = _(" ???");
 953                printf("    %-*s", info->width, name);
 954                printf(fmt, arg);
 955                printf("\n");
 956        } else
 957                printf("    %s\n", name);
 958
 959        return 0;
 960}
 961
 962static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 963{
 964        struct show_info *show_info = cb_data;
 965        struct ref_states *states = show_info->states;
 966        struct branch_info *branch_info = branch_item->util;
 967        struct string_list_item *item;
 968        int n;
 969
 970        if (!branch_info->merge.nr || !branch_info->remote_name ||
 971            strcmp(states->remote->name, branch_info->remote_name))
 972                return 0;
 973        if ((n = strlen(branch_item->string)) > show_info->width)
 974                show_info->width = n;
 975        if (branch_info->rebase)
 976                show_info->any_rebase = 1;
 977
 978        item = string_list_insert(show_info->list, branch_item->string);
 979        item->util = branch_info;
 980
 981        return 0;
 982}
 983
 984static int show_local_info_item(struct string_list_item *item, void *cb_data)
 985{
 986        struct show_info *show_info = cb_data;
 987        struct branch_info *branch_info = item->util;
 988        struct string_list *merge = &branch_info->merge;
 989        const char *also;
 990        int i;
 991
 992        if (branch_info->rebase && branch_info->merge.nr > 1) {
 993                error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"),
 994                        item->string);
 995                return 0;
 996        }
 997
 998        printf("    %-*s ", show_info->width, item->string);
 999        if (branch_info->rebase) {
1000                printf_ln(_("rebases onto remote %s"), merge->items[0].string);
1001                return 0;
1002        } else if (show_info->any_rebase) {
1003                printf_ln(_(" merges with remote %s"), merge->items[0].string);
1004                also = _("    and with remote");
1005        } else {
1006                printf_ln(_("merges with remote %s"), merge->items[0].string);
1007                also = _("   and with remote");
1008        }
1009        for (i = 1; i < merge->nr; i++)
1010                printf("    %-*s %s %s\n", show_info->width, "", also,
1011                       merge->items[i].string);
1012
1013        return 0;
1014}
1015
1016static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
1017{
1018        struct show_info *show_info = cb_data;
1019        struct push_info *push_info = push_item->util;
1020        struct string_list_item *item;
1021        int n;
1022        if ((n = strlen(push_item->string)) > show_info->width)
1023                show_info->width = n;
1024        if ((n = strlen(push_info->dest)) > show_info->width2)
1025                show_info->width2 = n;
1026        item = string_list_append(show_info->list, push_item->string);
1027        item->util = push_item->util;
1028        return 0;
1029}
1030
1031/*
1032 * Sorting comparison for a string list that has push_info
1033 * structs in its util field
1034 */
1035static int cmp_string_with_push(const void *va, const void *vb)
1036{
1037        const struct string_list_item *a = va;
1038        const struct string_list_item *b = vb;
1039        const struct push_info *a_push = a->util;
1040        const struct push_info *b_push = b->util;
1041        int cmp = strcmp(a->string, b->string);
1042        return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1043}
1044
1045static int show_push_info_item(struct string_list_item *item, void *cb_data)
1046{
1047        struct show_info *show_info = cb_data;
1048        struct push_info *push_info = item->util;
1049        const char *src = item->string, *status = NULL;
1050
1051        switch (push_info->status) {
1052        case PUSH_STATUS_CREATE:
1053                status = _("create");
1054                break;
1055        case PUSH_STATUS_DELETE:
1056                status = _("delete");
1057                src = _("(none)");
1058                break;
1059        case PUSH_STATUS_UPTODATE:
1060                status = _("up to date");
1061                break;
1062        case PUSH_STATUS_FASTFORWARD:
1063                status = _("fast-forwardable");
1064                break;
1065        case PUSH_STATUS_OUTOFDATE:
1066                status = _("local out of date");
1067                break;
1068        case PUSH_STATUS_NOTQUERIED:
1069                break;
1070        }
1071        if (status) {
1072                if (push_info->forced)
1073                        printf_ln(_("    %-*s forces to %-*s (%s)"), show_info->width, src,
1074                               show_info->width2, push_info->dest, status);
1075                else
1076                        printf_ln(_("    %-*s pushes to %-*s (%s)"), show_info->width, src,
1077                               show_info->width2, push_info->dest, status);
1078        } else {
1079                if (push_info->forced)
1080                        printf_ln(_("    %-*s forces to %s"), show_info->width, src,
1081                               push_info->dest);
1082                else
1083                        printf_ln(_("    %-*s pushes to %s"), show_info->width, src,
1084                               push_info->dest);
1085        }
1086        return 0;
1087}
1088
1089static int get_one_entry(struct remote *remote, void *priv)
1090{
1091        struct string_list *list = priv;
1092        struct strbuf url_buf = STRBUF_INIT;
1093        const char **url;
1094        int i, url_nr;
1095
1096        if (remote->url_nr > 0) {
1097                strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1098                string_list_append(list, remote->name)->util =
1099                                strbuf_detach(&url_buf, NULL);
1100        } else
1101                string_list_append(list, remote->name)->util = NULL;
1102        if (remote->pushurl_nr) {
1103                url = remote->pushurl;
1104                url_nr = remote->pushurl_nr;
1105        } else {
1106                url = remote->url;
1107                url_nr = remote->url_nr;
1108        }
1109        for (i = 0; i < url_nr; i++)
1110        {
1111                strbuf_addf(&url_buf, "%s (push)", url[i]);
1112                string_list_append(list, remote->name)->util =
1113                                strbuf_detach(&url_buf, NULL);
1114        }
1115
1116        return 0;
1117}
1118
1119static int show_all(void)
1120{
1121        struct string_list list = STRING_LIST_INIT_NODUP;
1122        int result;
1123
1124        list.strdup_strings = 1;
1125        result = for_each_remote(get_one_entry, &list);
1126
1127        if (!result) {
1128                int i;
1129
1130                string_list_sort(&list);
1131                for (i = 0; i < list.nr; i++) {
1132                        struct string_list_item *item = list.items + i;
1133                        if (verbose)
1134                                printf("%s\t%s\n", item->string,
1135                                        item->util ? (const char *)item->util : "");
1136                        else {
1137                                if (i && !strcmp((item - 1)->string, item->string))
1138                                        continue;
1139                                printf("%s\n", item->string);
1140                        }
1141                }
1142        }
1143        string_list_clear(&list, 1);
1144        return result;
1145}
1146
1147static int show(int argc, const char **argv)
1148{
1149        int no_query = 0, result = 0, query_flag = 0;
1150        struct option options[] = {
1151                OPT_BOOL('n', NULL, &no_query, N_("do not query remotes")),
1152                OPT_END()
1153        };
1154        struct ref_states states;
1155        struct string_list info_list = STRING_LIST_INIT_NODUP;
1156        struct show_info info;
1157
1158        argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1159                             0);
1160
1161        if (argc < 1)
1162                return show_all();
1163
1164        if (!no_query)
1165                query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1166
1167        memset(&states, 0, sizeof(states));
1168        memset(&info, 0, sizeof(info));
1169        info.states = &states;
1170        info.list = &info_list;
1171        for (; argc; argc--, argv++) {
1172                int i;
1173                const char **url;
1174                int url_nr;
1175
1176                get_remote_ref_states(*argv, &states, query_flag);
1177
1178                printf_ln(_("* remote %s"), *argv);
1179                printf_ln(_("  Fetch URL: %s"), states.remote->url_nr > 0 ?
1180                       states.remote->url[0] : _("(no URL)"));
1181                if (states.remote->pushurl_nr) {
1182                        url = states.remote->pushurl;
1183                        url_nr = states.remote->pushurl_nr;
1184                } else {
1185                        url = states.remote->url;
1186                        url_nr = states.remote->url_nr;
1187                }
1188                for (i = 0; i < url_nr; i++)
1189                        printf_ln(_("  Push  URL: %s"), url[i]);
1190                if (!i)
1191                        printf_ln(_("  Push  URL: %s"), "(no URL)");
1192                if (no_query)
1193                        printf_ln(_("  HEAD branch: %s"), "(not queried)");
1194                else if (!states.heads.nr)
1195                        printf_ln(_("  HEAD branch: %s"), "(unknown)");
1196                else if (states.heads.nr == 1)
1197                        printf_ln(_("  HEAD branch: %s"), states.heads.items[0].string);
1198                else {
1199                        printf(_("  HEAD branch (remote HEAD is ambiguous,"
1200                                 " may be one of the following):\n"));
1201                        for (i = 0; i < states.heads.nr; i++)
1202                                printf("    %s\n", states.heads.items[i].string);
1203                }
1204
1205                /* remote branch info */
1206                info.width = 0;
1207                for_each_string_list(&states.new, add_remote_to_show_info, &info);
1208                for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1209                for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1210                if (info.list->nr)
1211                        printf_ln(Q_("  Remote branch:%s",
1212                                     "  Remote branches:%s",
1213                                     info.list->nr),
1214                                  no_query ? _(" (status not queried)") : "");
1215                for_each_string_list(info.list, show_remote_info_item, &info);
1216                string_list_clear(info.list, 0);
1217
1218                /* git pull info */
1219                info.width = 0;
1220                info.any_rebase = 0;
1221                for_each_string_list(&branch_list, add_local_to_show_info, &info);
1222                if (info.list->nr)
1223                        printf_ln(Q_("  Local branch configured for 'git pull':",
1224                                     "  Local branches configured for 'git pull':",
1225                                     info.list->nr));
1226                for_each_string_list(info.list, show_local_info_item, &info);
1227                string_list_clear(info.list, 0);
1228
1229                /* git push info */
1230                if (states.remote->mirror)
1231                        printf_ln(_("  Local refs will be mirrored by 'git push'"));
1232
1233                info.width = info.width2 = 0;
1234                for_each_string_list(&states.push, add_push_to_show_info, &info);
1235                qsort(info.list->items, info.list->nr,
1236                        sizeof(*info.list->items), cmp_string_with_push);
1237                if (info.list->nr)
1238                        printf_ln(Q_("  Local ref configured for 'git push'%s:",
1239                                     "  Local refs configured for 'git push'%s:",
1240                                     info.list->nr),
1241                                  no_query ? _(" (status not queried)") : "");
1242                for_each_string_list(info.list, show_push_info_item, &info);
1243                string_list_clear(info.list, 0);
1244
1245                free_remote_ref_states(&states);
1246        }
1247
1248        return result;
1249}
1250
1251static int set_head(int argc, const char **argv)
1252{
1253        int i, opt_a = 0, opt_d = 0, result = 0;
1254        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1255        char *head_name = NULL;
1256
1257        struct option options[] = {
1258                OPT_BOOL('a', "auto", &opt_a,
1259                         N_("set refs/remotes/<name>/HEAD according to remote")),
1260                OPT_BOOL('d', "delete", &opt_d,
1261                         N_("delete refs/remotes/<name>/HEAD")),
1262                OPT_END()
1263        };
1264        argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1265                             0);
1266        if (argc)
1267                strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1268
1269        if (!opt_a && !opt_d && argc == 2) {
1270                head_name = xstrdup(argv[1]);
1271        } else if (opt_a && !opt_d && argc == 1) {
1272                struct ref_states states;
1273                memset(&states, 0, sizeof(states));
1274                get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1275                if (!states.heads.nr)
1276                        result |= error(_("Cannot determine remote HEAD"));
1277                else if (states.heads.nr > 1) {
1278                        result |= error(_("Multiple remote HEAD branches. "
1279                                          "Please choose one explicitly with:"));
1280                        for (i = 0; i < states.heads.nr; i++)
1281                                fprintf(stderr, "  git remote set-head %s %s\n",
1282                                        argv[0], states.heads.items[i].string);
1283                } else
1284                        head_name = xstrdup(states.heads.items[0].string);
1285                free_remote_ref_states(&states);
1286        } else if (opt_d && !opt_a && argc == 1) {
1287                if (delete_ref(buf.buf, NULL, REF_NODEREF))
1288                        result |= error(_("Could not delete %s"), buf.buf);
1289        } else
1290                usage_with_options(builtin_remote_sethead_usage, options);
1291
1292        if (head_name) {
1293                strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1294                /* make sure it's valid */
1295                if (!ref_exists(buf2.buf))
1296                        result |= error(_("Not a valid ref: %s"), buf2.buf);
1297                else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1298                        result |= error(_("Could not setup %s"), buf.buf);
1299                if (opt_a)
1300                        printf("%s/HEAD set to %s\n", argv[0], head_name);
1301                free(head_name);
1302        }
1303
1304        strbuf_release(&buf);
1305        strbuf_release(&buf2);
1306        return result;
1307}
1308
1309static int prune_remote(const char *remote, int dry_run)
1310{
1311        int result = 0;
1312        struct ref_states states;
1313        struct string_list refs_to_prune = STRING_LIST_INIT_NODUP;
1314        struct string_list_item *item;
1315        const char *dangling_msg = dry_run
1316                ? _(" %s will become dangling!")
1317                : _(" %s has become dangling!");
1318
1319        memset(&states, 0, sizeof(states));
1320        get_remote_ref_states(remote, &states, GET_REF_STATES);
1321
1322        if (!states.stale.nr) {
1323                free_remote_ref_states(&states);
1324                return 0;
1325        }
1326
1327        printf_ln(_("Pruning %s"), remote);
1328        printf_ln(_("URL: %s"),
1329                  states.remote->url_nr
1330                  ? states.remote->url[0]
1331                  : _("(no URL)"));
1332
1333        for_each_string_list_item(item, &states.stale)
1334                string_list_append(&refs_to_prune, item->util);
1335        string_list_sort(&refs_to_prune);
1336
1337        if (!dry_run) {
1338                struct strbuf err = STRBUF_INIT;
1339                if (repack_without_refs(&refs_to_prune, &err))
1340                        result |= error("%s", err.buf);
1341                strbuf_release(&err);
1342        }
1343
1344        for_each_string_list_item(item, &states.stale) {
1345                const char *refname = item->util;
1346
1347                if (!dry_run)
1348                        result |= delete_ref(refname, NULL, 0);
1349
1350                if (dry_run)
1351                        printf_ln(_(" * [would prune] %s"),
1352                               abbrev_ref(refname, "refs/remotes/"));
1353                else
1354                        printf_ln(_(" * [pruned] %s"),
1355                               abbrev_ref(refname, "refs/remotes/"));
1356        }
1357
1358        warn_dangling_symrefs(stdout, dangling_msg, &refs_to_prune);
1359
1360        string_list_clear(&refs_to_prune, 0);
1361        free_remote_ref_states(&states);
1362        return result;
1363}
1364
1365static int prune(int argc, const char **argv)
1366{
1367        int dry_run = 0, result = 0;
1368        struct option options[] = {
1369                OPT__DRY_RUN(&dry_run, N_("dry run")),
1370                OPT_END()
1371        };
1372
1373        argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1374                             0);
1375
1376        if (argc < 1)
1377                usage_with_options(builtin_remote_prune_usage, options);
1378
1379        for (; argc; argc--, argv++)
1380                result |= prune_remote(*argv, dry_run);
1381
1382        return result;
1383}
1384
1385static int get_remote_default(const char *key, const char *value, void *priv)
1386{
1387        if (strcmp(key, "remotes.default") == 0) {
1388                int *found = priv;
1389                *found = 1;
1390        }
1391        return 0;
1392}
1393
1394static int update(int argc, const char **argv)
1395{
1396        int i, prune = -1;
1397        struct option options[] = {
1398                OPT_BOOL('p', "prune", &prune,
1399                         N_("prune remotes after fetching")),
1400                OPT_END()
1401        };
1402        struct argv_array fetch_argv = ARGV_ARRAY_INIT;
1403        int default_defined = 0;
1404        int retval;
1405
1406        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1407                             PARSE_OPT_KEEP_ARGV0);
1408
1409        argv_array_push(&fetch_argv, "fetch");
1410
1411        if (prune != -1)
1412                argv_array_push(&fetch_argv, prune ? "--prune" : "--no-prune");
1413        if (verbose)
1414                argv_array_push(&fetch_argv, "-v");
1415        argv_array_push(&fetch_argv, "--multiple");
1416        if (argc < 2)
1417                argv_array_push(&fetch_argv, "default");
1418        for (i = 1; i < argc; i++)
1419                argv_array_push(&fetch_argv, argv[i]);
1420
1421        if (strcmp(fetch_argv.argv[fetch_argv.argc-1], "default") == 0) {
1422                git_config(get_remote_default, &default_defined);
1423                if (!default_defined) {
1424                        argv_array_pop(&fetch_argv);
1425                        argv_array_push(&fetch_argv, "--all");
1426                }
1427        }
1428
1429        retval = run_command_v_opt(fetch_argv.argv, RUN_GIT_CMD);
1430        argv_array_clear(&fetch_argv);
1431        return retval;
1432}
1433
1434static int remove_all_fetch_refspecs(const char *remote, const char *key)
1435{
1436        return git_config_set_multivar(key, NULL, NULL, 1);
1437}
1438
1439static int add_branches(struct remote *remote, const char **branches,
1440                        const char *key)
1441{
1442        const char *remotename = remote->name;
1443        int mirror = remote->mirror;
1444        struct strbuf refspec = STRBUF_INIT;
1445
1446        for (; *branches; branches++)
1447                if (add_branch(key, *branches, remotename, mirror, &refspec)) {
1448                        strbuf_release(&refspec);
1449                        return 1;
1450                }
1451
1452        strbuf_release(&refspec);
1453        return 0;
1454}
1455
1456static int set_remote_branches(const char *remotename, const char **branches,
1457                                int add_mode)
1458{
1459        struct strbuf key = STRBUF_INIT;
1460        struct remote *remote;
1461
1462        strbuf_addf(&key, "remote.%s.fetch", remotename);
1463
1464        if (!remote_is_configured(remotename))
1465                die(_("No such remote '%s'"), remotename);
1466        remote = remote_get(remotename);
1467
1468        if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
1469                strbuf_release(&key);
1470                return 1;
1471        }
1472        if (add_branches(remote, branches, key.buf)) {
1473                strbuf_release(&key);
1474                return 1;
1475        }
1476
1477        strbuf_release(&key);
1478        return 0;
1479}
1480
1481static int set_branches(int argc, const char **argv)
1482{
1483        int add_mode = 0;
1484        struct option options[] = {
1485                OPT_BOOL('\0', "add", &add_mode, N_("add branch")),
1486                OPT_END()
1487        };
1488
1489        argc = parse_options(argc, argv, NULL, options,
1490                             builtin_remote_setbranches_usage, 0);
1491        if (argc == 0) {
1492                error(_("no remote specified"));
1493                usage_with_options(builtin_remote_setbranches_usage, options);
1494        }
1495        argv[argc] = NULL;
1496
1497        return set_remote_branches(argv[0], argv + 1, add_mode);
1498}
1499
1500static int set_url(int argc, const char **argv)
1501{
1502        int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1503        int matches = 0, negative_matches = 0;
1504        const char *remotename = NULL;
1505        const char *newurl = NULL;
1506        const char *oldurl = NULL;
1507        struct remote *remote;
1508        regex_t old_regex;
1509        const char **urlset;
1510        int urlset_nr;
1511        struct strbuf name_buf = STRBUF_INIT;
1512        struct option options[] = {
1513                OPT_BOOL('\0', "push", &push_mode,
1514                         N_("manipulate push URLs")),
1515                OPT_BOOL('\0', "add", &add_mode,
1516                         N_("add URL")),
1517                OPT_BOOL('\0', "delete", &delete_mode,
1518                            N_("delete URLs")),
1519                OPT_END()
1520        };
1521        argc = parse_options(argc, argv, NULL, options, builtin_remote_seturl_usage,
1522                             PARSE_OPT_KEEP_ARGV0);
1523
1524        if (add_mode && delete_mode)
1525                die(_("--add --delete doesn't make sense"));
1526
1527        if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1528                usage_with_options(builtin_remote_seturl_usage, options);
1529
1530        remotename = argv[1];
1531        newurl = argv[2];
1532        if (argc > 3)
1533                oldurl = argv[3];
1534
1535        if (delete_mode)
1536                oldurl = newurl;
1537
1538        if (!remote_is_configured(remotename))
1539                die(_("No such remote '%s'"), remotename);
1540        remote = remote_get(remotename);
1541
1542        if (push_mode) {
1543                strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1544                urlset = remote->pushurl;
1545                urlset_nr = remote->pushurl_nr;
1546        } else {
1547                strbuf_addf(&name_buf, "remote.%s.url", remotename);
1548                urlset = remote->url;
1549                urlset_nr = remote->url_nr;
1550        }
1551
1552        /* Special cases that add new entry. */
1553        if ((!oldurl && !delete_mode) || add_mode) {
1554                if (add_mode)
1555                        git_config_set_multivar(name_buf.buf, newurl,
1556                                "^$", 0);
1557                else
1558                        git_config_set(name_buf.buf, newurl);
1559                strbuf_release(&name_buf);
1560                return 0;
1561        }
1562
1563        /* Old URL specified. Demand that one matches. */
1564        if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1565                die(_("Invalid old URL pattern: %s"), oldurl);
1566
1567        for (i = 0; i < urlset_nr; i++)
1568                if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1569                        matches++;
1570                else
1571                        negative_matches++;
1572        if (!delete_mode && !matches)
1573                die(_("No such URL found: %s"), oldurl);
1574        if (delete_mode && !negative_matches && !push_mode)
1575                die(_("Will not delete all non-push URLs"));
1576
1577        regfree(&old_regex);
1578
1579        if (!delete_mode)
1580                git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1581        else
1582                git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1583        return 0;
1584}
1585
1586int cmd_remote(int argc, const char **argv, const char *prefix)
1587{
1588        struct option options[] = {
1589                OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")),
1590                OPT_END()
1591        };
1592        int result;
1593
1594        argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1595                PARSE_OPT_STOP_AT_NON_OPTION);
1596
1597        if (argc < 1)
1598                result = show_all();
1599        else if (!strcmp(argv[0], "add"))
1600                result = add(argc, argv);
1601        else if (!strcmp(argv[0], "rename"))
1602                result = mv(argc, argv);
1603        else if (!strcmp(argv[0], "rm") || !strcmp(argv[0], "remove"))
1604                result = rm(argc, argv);
1605        else if (!strcmp(argv[0], "set-head"))
1606                result = set_head(argc, argv);
1607        else if (!strcmp(argv[0], "set-branches"))
1608                result = set_branches(argc, argv);
1609        else if (!strcmp(argv[0], "set-url"))
1610                result = set_url(argc, argv);
1611        else if (!strcmp(argv[0], "show"))
1612                result = show(argc, argv);
1613        else if (!strcmp(argv[0], "prune"))
1614                result = prune(argc, argv);
1615        else if (!strcmp(argv[0], "update"))
1616                result = update(argc, argv);
1617        else {
1618                error(_("Unknown subcommand: %s"), argv[0]);
1619                usage_with_options(builtin_remote_usage, options);
1620        }
1621
1622        return result ? 1 : 0;
1623}