builtin / remote.con commit submodule: rewrite `module_list` shell function in C (74703a1)
   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
 585        strbuf_addf(&buf, "remote.%s.url", remote->name);
 586        for (i = 0; i < remote->url_nr; i++)
 587                if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0))
 588                        return error(_("Could not append '%s' to '%s'"),
 589                                        remote->url[i], buf.buf);
 590        strbuf_reset(&buf);
 591        strbuf_addf(&buf, "remote.%s.push", remote->name);
 592        for (i = 0; i < remote->push_refspec_nr; i++)
 593                if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0))
 594                        return error(_("Could not append '%s' to '%s'"),
 595                                        remote->push_refspec[i], buf.buf);
 596        strbuf_reset(&buf);
 597        strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 598        for (i = 0; i < remote->fetch_refspec_nr; i++)
 599                if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0))
 600                        return error(_("Could not append '%s' to '%s'"),
 601                                        remote->fetch_refspec[i], buf.buf);
 602        if (remote->origin == REMOTE_REMOTES)
 603                unlink_or_warn(git_path("remotes/%s", remote->name));
 604        else if (remote->origin == REMOTE_BRANCHES)
 605                unlink_or_warn(git_path("branches/%s", remote->name));
 606        return 0;
 607}
 608
 609static int mv(int argc, const char **argv)
 610{
 611        struct option options[] = {
 612                OPT_END()
 613        };
 614        struct remote *oldremote, *newremote;
 615        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT,
 616                old_remote_context = STRBUF_INIT;
 617        struct string_list remote_branches = STRING_LIST_INIT_NODUP;
 618        struct rename_info rename;
 619        int i, refspec_updated = 0;
 620
 621        if (argc != 3)
 622                usage_with_options(builtin_remote_rename_usage, options);
 623
 624        rename.old = argv[1];
 625        rename.new = argv[2];
 626        rename.remote_branches = &remote_branches;
 627
 628        oldremote = remote_get(rename.old);
 629        if (!oldremote)
 630                die(_("No such remote: %s"), rename.old);
 631
 632        if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
 633                return migrate_file(oldremote);
 634
 635        newremote = remote_get(rename.new);
 636        if (newremote && (newremote->url_nr > 1 || newremote->fetch_refspec_nr))
 637                die(_("remote %s already exists."), rename.new);
 638
 639        strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
 640        if (!valid_fetch_refspec(buf.buf))
 641                die(_("'%s' is not a valid remote name"), rename.new);
 642
 643        strbuf_reset(&buf);
 644        strbuf_addf(&buf, "remote.%s", rename.old);
 645        strbuf_addf(&buf2, "remote.%s", rename.new);
 646        if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 647                return error(_("Could not rename config section '%s' to '%s'"),
 648                                buf.buf, buf2.buf);
 649
 650        strbuf_reset(&buf);
 651        strbuf_addf(&buf, "remote.%s.fetch", rename.new);
 652        if (git_config_set_multivar(buf.buf, NULL, NULL, 1))
 653                return error(_("Could not remove config section '%s'"), buf.buf);
 654        strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old);
 655        for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 656                char *ptr;
 657
 658                strbuf_reset(&buf2);
 659                strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 660                ptr = strstr(buf2.buf, old_remote_context.buf);
 661                if (ptr) {
 662                        refspec_updated = 1;
 663                        strbuf_splice(&buf2,
 664                                      ptr-buf2.buf + strlen(":refs/remotes/"),
 665                                      strlen(rename.old), rename.new,
 666                                      strlen(rename.new));
 667                } else
 668                        warning(_("Not updating non-default fetch refspec\n"
 669                                  "\t%s\n"
 670                                  "\tPlease update the configuration manually if necessary."),
 671                                buf2.buf);
 672
 673                if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 674                        return error(_("Could not append '%s'"), buf.buf);
 675        }
 676
 677        read_branches();
 678        for (i = 0; i < branch_list.nr; i++) {
 679                struct string_list_item *item = branch_list.items + i;
 680                struct branch_info *info = item->util;
 681                if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 682                        strbuf_reset(&buf);
 683                        strbuf_addf(&buf, "branch.%s.remote", item->string);
 684                        if (git_config_set(buf.buf, rename.new)) {
 685                                return error(_("Could not set '%s'"), buf.buf);
 686                        }
 687                }
 688        }
 689
 690        if (!refspec_updated)
 691                return 0;
 692
 693        /*
 694         * First remove symrefs, then rename the rest, finally create
 695         * the new symrefs.
 696         */
 697        for_each_ref(read_remote_branches, &rename);
 698        for (i = 0; i < remote_branches.nr; i++) {
 699                struct string_list_item *item = remote_branches.items + i;
 700                int flag = 0;
 701                struct object_id oid;
 702
 703                read_ref_full(item->string, RESOLVE_REF_READING, oid.hash, &flag);
 704                if (!(flag & REF_ISSYMREF))
 705                        continue;
 706                if (delete_ref(item->string, NULL, REF_NODEREF))
 707                        die(_("deleting '%s' failed"), item->string);
 708        }
 709        for (i = 0; i < remote_branches.nr; i++) {
 710                struct string_list_item *item = remote_branches.items + i;
 711
 712                if (item->util)
 713                        continue;
 714                strbuf_reset(&buf);
 715                strbuf_addstr(&buf, item->string);
 716                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 717                                rename.new, strlen(rename.new));
 718                strbuf_reset(&buf2);
 719                strbuf_addf(&buf2, "remote: renamed %s to %s",
 720                                item->string, buf.buf);
 721                if (rename_ref(item->string, buf.buf, buf2.buf))
 722                        die(_("renaming '%s' failed"), item->string);
 723        }
 724        for (i = 0; i < remote_branches.nr; i++) {
 725                struct string_list_item *item = remote_branches.items + i;
 726
 727                if (!item->util)
 728                        continue;
 729                strbuf_reset(&buf);
 730                strbuf_addstr(&buf, item->string);
 731                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 732                                rename.new, strlen(rename.new));
 733                strbuf_reset(&buf2);
 734                strbuf_addstr(&buf2, item->util);
 735                strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
 736                                rename.new, strlen(rename.new));
 737                strbuf_reset(&buf3);
 738                strbuf_addf(&buf3, "remote: renamed %s to %s",
 739                                item->string, buf.buf);
 740                if (create_symref(buf.buf, buf2.buf, buf3.buf))
 741                        die(_("creating '%s' failed"), buf.buf);
 742        }
 743        return 0;
 744}
 745
 746static int rm(int argc, const char **argv)
 747{
 748        struct option options[] = {
 749                OPT_END()
 750        };
 751        struct remote *remote;
 752        struct strbuf buf = STRBUF_INIT;
 753        struct known_remotes known_remotes = { NULL, NULL };
 754        struct string_list branches = STRING_LIST_INIT_DUP;
 755        struct string_list skipped = STRING_LIST_INIT_DUP;
 756        struct branches_for_remote cb_data;
 757        int i, result;
 758
 759        memset(&cb_data, 0, sizeof(cb_data));
 760        cb_data.branches = &branches;
 761        cb_data.skipped = &skipped;
 762        cb_data.keep = &known_remotes;
 763
 764        if (argc != 2)
 765                usage_with_options(builtin_remote_rm_usage, options);
 766
 767        remote = remote_get(argv[1]);
 768        if (!remote)
 769                die(_("No such remote: %s"), argv[1]);
 770
 771        known_remotes.to_delete = remote;
 772        for_each_remote(add_known_remote, &known_remotes);
 773
 774        read_branches();
 775        for (i = 0; i < branch_list.nr; i++) {
 776                struct string_list_item *item = branch_list.items + i;
 777                struct branch_info *info = item->util;
 778                if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 779                        const char *keys[] = { "remote", "merge", NULL }, **k;
 780                        for (k = keys; *k; k++) {
 781                                strbuf_reset(&buf);
 782                                strbuf_addf(&buf, "branch.%s.%s",
 783                                                item->string, *k);
 784                                if (git_config_set(buf.buf, NULL)) {
 785                                        strbuf_release(&buf);
 786                                        return -1;
 787                                }
 788                        }
 789                }
 790        }
 791
 792        /*
 793         * We cannot just pass a function to for_each_ref() which deletes
 794         * the branches one by one, since for_each_ref() relies on cached
 795         * refs, which are invalidated when deleting a branch.
 796         */
 797        cb_data.remote = remote;
 798        result = for_each_ref(add_branch_for_removal, &cb_data);
 799        strbuf_release(&buf);
 800
 801        if (!result)
 802                result = delete_refs(&branches);
 803        string_list_clear(&branches, 0);
 804
 805        if (skipped.nr) {
 806                fprintf_ln(stderr,
 807                           Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 808                              "to delete it, use:",
 809                              "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 810                              "to delete them, use:",
 811                              skipped.nr));
 812                for (i = 0; i < skipped.nr; i++)
 813                        fprintf(stderr, "  git branch -d %s\n",
 814                                skipped.items[i].string);
 815        }
 816        string_list_clear(&skipped, 0);
 817
 818        if (!result) {
 819                strbuf_addf(&buf, "remote.%s", remote->name);
 820                if (git_config_rename_section(buf.buf, NULL) < 1)
 821                        return error(_("Could not remove config section '%s'"), buf.buf);
 822        }
 823
 824        return result;
 825}
 826
 827static void clear_push_info(void *util, const char *string)
 828{
 829        struct push_info *info = util;
 830        free(info->dest);
 831        free(info);
 832}
 833
 834static void free_remote_ref_states(struct ref_states *states)
 835{
 836        string_list_clear(&states->new, 0);
 837        string_list_clear(&states->stale, 1);
 838        string_list_clear(&states->tracked, 0);
 839        string_list_clear(&states->heads, 0);
 840        string_list_clear_func(&states->push, clear_push_info);
 841}
 842
 843static int append_ref_to_tracked_list(const char *refname,
 844        const struct object_id *oid, int flags, void *cb_data)
 845{
 846        struct ref_states *states = cb_data;
 847        struct refspec refspec;
 848
 849        if (flags & REF_ISSYMREF)
 850                return 0;
 851
 852        memset(&refspec, 0, sizeof(refspec));
 853        refspec.dst = (char *)refname;
 854        if (!remote_find_tracking(states->remote, &refspec))
 855                string_list_append(&states->tracked, abbrev_branch(refspec.src));
 856
 857        return 0;
 858}
 859
 860static int get_remote_ref_states(const char *name,
 861                                 struct ref_states *states,
 862                                 int query)
 863{
 864        struct transport *transport;
 865        const struct ref *remote_refs;
 866
 867        states->remote = remote_get(name);
 868        if (!states->remote)
 869                return error(_("No such remote: %s"), name);
 870
 871        read_branches();
 872
 873        if (query) {
 874                transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 875                        states->remote->url[0] : NULL);
 876                remote_refs = transport_get_remote_refs(transport);
 877                transport_disconnect(transport);
 878
 879                states->queried = 1;
 880                if (query & GET_REF_STATES)
 881                        get_ref_states(remote_refs, states);
 882                if (query & GET_HEAD_NAMES)
 883                        get_head_names(remote_refs, states);
 884                if (query & GET_PUSH_REF_STATES)
 885                        get_push_ref_states(remote_refs, states);
 886        } else {
 887                for_each_ref(append_ref_to_tracked_list, states);
 888                string_list_sort(&states->tracked);
 889                get_push_ref_states_noquery(states);
 890        }
 891
 892        return 0;
 893}
 894
 895struct show_info {
 896        struct string_list *list;
 897        struct ref_states *states;
 898        int width, width2;
 899        int any_rebase;
 900};
 901
 902static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 903{
 904        struct show_info *info = cb_data;
 905        int n = strlen(item->string);
 906        if (n > info->width)
 907                info->width = n;
 908        string_list_insert(info->list, item->string);
 909        return 0;
 910}
 911
 912static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 913{
 914        struct show_info *info = cb_data;
 915        struct ref_states *states = info->states;
 916        const char *name = item->string;
 917
 918        if (states->queried) {
 919                const char *fmt = "%s";
 920                const char *arg = "";
 921                if (string_list_has_string(&states->new, name)) {
 922                        fmt = _(" new (next fetch will store in remotes/%s)");
 923                        arg = states->remote->name;
 924                } else if (string_list_has_string(&states->tracked, name))
 925                        arg = _(" tracked");
 926                else if (string_list_has_string(&states->stale, name))
 927                        arg = _(" stale (use 'git remote prune' to remove)");
 928                else
 929                        arg = _(" ???");
 930                printf("    %-*s", info->width, name);
 931                printf(fmt, arg);
 932                printf("\n");
 933        } else
 934                printf("    %s\n", name);
 935
 936        return 0;
 937}
 938
 939static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 940{
 941        struct show_info *show_info = cb_data;
 942        struct ref_states *states = show_info->states;
 943        struct branch_info *branch_info = branch_item->util;
 944        struct string_list_item *item;
 945        int n;
 946
 947        if (!branch_info->merge.nr || !branch_info->remote_name ||
 948            strcmp(states->remote->name, branch_info->remote_name))
 949                return 0;
 950        if ((n = strlen(branch_item->string)) > show_info->width)
 951                show_info->width = n;
 952        if (branch_info->rebase)
 953                show_info->any_rebase = 1;
 954
 955        item = string_list_insert(show_info->list, branch_item->string);
 956        item->util = branch_info;
 957
 958        return 0;
 959}
 960
 961static int show_local_info_item(struct string_list_item *item, void *cb_data)
 962{
 963        struct show_info *show_info = cb_data;
 964        struct branch_info *branch_info = item->util;
 965        struct string_list *merge = &branch_info->merge;
 966        const char *also;
 967        int i;
 968
 969        if (branch_info->rebase && branch_info->merge.nr > 1) {
 970                error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"),
 971                        item->string);
 972                return 0;
 973        }
 974
 975        printf("    %-*s ", show_info->width, item->string);
 976        if (branch_info->rebase) {
 977                printf_ln(_("rebases onto remote %s"), merge->items[0].string);
 978                return 0;
 979        } else if (show_info->any_rebase) {
 980                printf_ln(_(" merges with remote %s"), merge->items[0].string);
 981                also = _("    and with remote");
 982        } else {
 983                printf_ln(_("merges with remote %s"), merge->items[0].string);
 984                also = _("   and with remote");
 985        }
 986        for (i = 1; i < merge->nr; i++)
 987                printf("    %-*s %s %s\n", show_info->width, "", also,
 988                       merge->items[i].string);
 989
 990        return 0;
 991}
 992
 993static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
 994{
 995        struct show_info *show_info = cb_data;
 996        struct push_info *push_info = push_item->util;
 997        struct string_list_item *item;
 998        int n;
 999        if ((n = strlen(push_item->string)) > show_info->width)
1000                show_info->width = n;
1001        if ((n = strlen(push_info->dest)) > show_info->width2)
1002                show_info->width2 = n;
1003        item = string_list_append(show_info->list, push_item->string);
1004        item->util = push_item->util;
1005        return 0;
1006}
1007
1008/*
1009 * Sorting comparison for a string list that has push_info
1010 * structs in its util field
1011 */
1012static int cmp_string_with_push(const void *va, const void *vb)
1013{
1014        const struct string_list_item *a = va;
1015        const struct string_list_item *b = vb;
1016        const struct push_info *a_push = a->util;
1017        const struct push_info *b_push = b->util;
1018        int cmp = strcmp(a->string, b->string);
1019        return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1020}
1021
1022static int show_push_info_item(struct string_list_item *item, void *cb_data)
1023{
1024        struct show_info *show_info = cb_data;
1025        struct push_info *push_info = item->util;
1026        const char *src = item->string, *status = NULL;
1027
1028        switch (push_info->status) {
1029        case PUSH_STATUS_CREATE:
1030                status = _("create");
1031                break;
1032        case PUSH_STATUS_DELETE:
1033                status = _("delete");
1034                src = _("(none)");
1035                break;
1036        case PUSH_STATUS_UPTODATE:
1037                status = _("up to date");
1038                break;
1039        case PUSH_STATUS_FASTFORWARD:
1040                status = _("fast-forwardable");
1041                break;
1042        case PUSH_STATUS_OUTOFDATE:
1043                status = _("local out of date");
1044                break;
1045        case PUSH_STATUS_NOTQUERIED:
1046                break;
1047        }
1048        if (status) {
1049                if (push_info->forced)
1050                        printf_ln(_("    %-*s forces to %-*s (%s)"), show_info->width, src,
1051                               show_info->width2, push_info->dest, status);
1052                else
1053                        printf_ln(_("    %-*s pushes to %-*s (%s)"), show_info->width, src,
1054                               show_info->width2, push_info->dest, status);
1055        } else {
1056                if (push_info->forced)
1057                        printf_ln(_("    %-*s forces to %s"), show_info->width, src,
1058                               push_info->dest);
1059                else
1060                        printf_ln(_("    %-*s pushes to %s"), show_info->width, src,
1061                               push_info->dest);
1062        }
1063        return 0;
1064}
1065
1066static int get_one_entry(struct remote *remote, void *priv)
1067{
1068        struct string_list *list = priv;
1069        struct strbuf url_buf = STRBUF_INIT;
1070        const char **url;
1071        int i, url_nr;
1072
1073        if (remote->url_nr > 0) {
1074                strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1075                string_list_append(list, remote->name)->util =
1076                                strbuf_detach(&url_buf, NULL);
1077        } else
1078                string_list_append(list, remote->name)->util = NULL;
1079        if (remote->pushurl_nr) {
1080                url = remote->pushurl;
1081                url_nr = remote->pushurl_nr;
1082        } else {
1083                url = remote->url;
1084                url_nr = remote->url_nr;
1085        }
1086        for (i = 0; i < url_nr; i++)
1087        {
1088                strbuf_addf(&url_buf, "%s (push)", url[i]);
1089                string_list_append(list, remote->name)->util =
1090                                strbuf_detach(&url_buf, NULL);
1091        }
1092
1093        return 0;
1094}
1095
1096static int show_all(void)
1097{
1098        struct string_list list = STRING_LIST_INIT_NODUP;
1099        int result;
1100
1101        list.strdup_strings = 1;
1102        result = for_each_remote(get_one_entry, &list);
1103
1104        if (!result) {
1105                int i;
1106
1107                string_list_sort(&list);
1108                for (i = 0; i < list.nr; i++) {
1109                        struct string_list_item *item = list.items + i;
1110                        if (verbose)
1111                                printf("%s\t%s\n", item->string,
1112                                        item->util ? (const char *)item->util : "");
1113                        else {
1114                                if (i && !strcmp((item - 1)->string, item->string))
1115                                        continue;
1116                                printf("%s\n", item->string);
1117                        }
1118                }
1119        }
1120        string_list_clear(&list, 1);
1121        return result;
1122}
1123
1124static int show(int argc, const char **argv)
1125{
1126        int no_query = 0, result = 0, query_flag = 0;
1127        struct option options[] = {
1128                OPT_BOOL('n', NULL, &no_query, N_("do not query remotes")),
1129                OPT_END()
1130        };
1131        struct ref_states states;
1132        struct string_list info_list = STRING_LIST_INIT_NODUP;
1133        struct show_info info;
1134
1135        argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1136                             0);
1137
1138        if (argc < 1)
1139                return show_all();
1140
1141        if (!no_query)
1142                query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1143
1144        memset(&states, 0, sizeof(states));
1145        memset(&info, 0, sizeof(info));
1146        info.states = &states;
1147        info.list = &info_list;
1148        for (; argc; argc--, argv++) {
1149                int i;
1150                const char **url;
1151                int url_nr;
1152
1153                get_remote_ref_states(*argv, &states, query_flag);
1154
1155                printf_ln(_("* remote %s"), *argv);
1156                printf_ln(_("  Fetch URL: %s"), states.remote->url_nr > 0 ?
1157                       states.remote->url[0] : _("(no URL)"));
1158                if (states.remote->pushurl_nr) {
1159                        url = states.remote->pushurl;
1160                        url_nr = states.remote->pushurl_nr;
1161                } else {
1162                        url = states.remote->url;
1163                        url_nr = states.remote->url_nr;
1164                }
1165                for (i = 0; i < url_nr; i++)
1166                        printf_ln(_("  Push  URL: %s"), url[i]);
1167                if (!i)
1168                        printf_ln(_("  Push  URL: %s"), "(no URL)");
1169                if (no_query)
1170                        printf_ln(_("  HEAD branch: %s"), "(not queried)");
1171                else if (!states.heads.nr)
1172                        printf_ln(_("  HEAD branch: %s"), "(unknown)");
1173                else if (states.heads.nr == 1)
1174                        printf_ln(_("  HEAD branch: %s"), states.heads.items[0].string);
1175                else {
1176                        printf(_("  HEAD branch (remote HEAD is ambiguous,"
1177                                 " may be one of the following):\n"));
1178                        for (i = 0; i < states.heads.nr; i++)
1179                                printf("    %s\n", states.heads.items[i].string);
1180                }
1181
1182                /* remote branch info */
1183                info.width = 0;
1184                for_each_string_list(&states.new, add_remote_to_show_info, &info);
1185                for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1186                for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1187                if (info.list->nr)
1188                        printf_ln(Q_("  Remote branch:%s",
1189                                     "  Remote branches:%s",
1190                                     info.list->nr),
1191                                  no_query ? _(" (status not queried)") : "");
1192                for_each_string_list(info.list, show_remote_info_item, &info);
1193                string_list_clear(info.list, 0);
1194
1195                /* git pull info */
1196                info.width = 0;
1197                info.any_rebase = 0;
1198                for_each_string_list(&branch_list, add_local_to_show_info, &info);
1199                if (info.list->nr)
1200                        printf_ln(Q_("  Local branch configured for 'git pull':",
1201                                     "  Local branches configured for 'git pull':",
1202                                     info.list->nr));
1203                for_each_string_list(info.list, show_local_info_item, &info);
1204                string_list_clear(info.list, 0);
1205
1206                /* git push info */
1207                if (states.remote->mirror)
1208                        printf_ln(_("  Local refs will be mirrored by 'git push'"));
1209
1210                info.width = info.width2 = 0;
1211                for_each_string_list(&states.push, add_push_to_show_info, &info);
1212                qsort(info.list->items, info.list->nr,
1213                        sizeof(*info.list->items), cmp_string_with_push);
1214                if (info.list->nr)
1215                        printf_ln(Q_("  Local ref configured for 'git push'%s:",
1216                                     "  Local refs configured for 'git push'%s:",
1217                                     info.list->nr),
1218                                  no_query ? _(" (status not queried)") : "");
1219                for_each_string_list(info.list, show_push_info_item, &info);
1220                string_list_clear(info.list, 0);
1221
1222                free_remote_ref_states(&states);
1223        }
1224
1225        return result;
1226}
1227
1228static int set_head(int argc, const char **argv)
1229{
1230        int i, opt_a = 0, opt_d = 0, result = 0;
1231        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1232        char *head_name = NULL;
1233
1234        struct option options[] = {
1235                OPT_BOOL('a', "auto", &opt_a,
1236                         N_("set refs/remotes/<name>/HEAD according to remote")),
1237                OPT_BOOL('d', "delete", &opt_d,
1238                         N_("delete refs/remotes/<name>/HEAD")),
1239                OPT_END()
1240        };
1241        argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1242                             0);
1243        if (argc)
1244                strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1245
1246        if (!opt_a && !opt_d && argc == 2) {
1247                head_name = xstrdup(argv[1]);
1248        } else if (opt_a && !opt_d && argc == 1) {
1249                struct ref_states states;
1250                memset(&states, 0, sizeof(states));
1251                get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1252                if (!states.heads.nr)
1253                        result |= error(_("Cannot determine remote HEAD"));
1254                else if (states.heads.nr > 1) {
1255                        result |= error(_("Multiple remote HEAD branches. "
1256                                          "Please choose one explicitly with:"));
1257                        for (i = 0; i < states.heads.nr; i++)
1258                                fprintf(stderr, "  git remote set-head %s %s\n",
1259                                        argv[0], states.heads.items[i].string);
1260                } else
1261                        head_name = xstrdup(states.heads.items[0].string);
1262                free_remote_ref_states(&states);
1263        } else if (opt_d && !opt_a && argc == 1) {
1264                if (delete_ref(buf.buf, NULL, REF_NODEREF))
1265                        result |= error(_("Could not delete %s"), buf.buf);
1266        } else
1267                usage_with_options(builtin_remote_sethead_usage, options);
1268
1269        if (head_name) {
1270                strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1271                /* make sure it's valid */
1272                if (!ref_exists(buf2.buf))
1273                        result |= error(_("Not a valid ref: %s"), buf2.buf);
1274                else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1275                        result |= error(_("Could not setup %s"), buf.buf);
1276                if (opt_a)
1277                        printf("%s/HEAD set to %s\n", argv[0], head_name);
1278                free(head_name);
1279        }
1280
1281        strbuf_release(&buf);
1282        strbuf_release(&buf2);
1283        return result;
1284}
1285
1286static int prune_remote(const char *remote, int dry_run)
1287{
1288        int result = 0;
1289        struct ref_states states;
1290        struct string_list refs_to_prune = STRING_LIST_INIT_NODUP;
1291        struct string_list_item *item;
1292        const char *dangling_msg = dry_run
1293                ? _(" %s will become dangling!")
1294                : _(" %s has become dangling!");
1295
1296        memset(&states, 0, sizeof(states));
1297        get_remote_ref_states(remote, &states, GET_REF_STATES);
1298
1299        if (!states.stale.nr) {
1300                free_remote_ref_states(&states);
1301                return 0;
1302        }
1303
1304        printf_ln(_("Pruning %s"), remote);
1305        printf_ln(_("URL: %s"),
1306                  states.remote->url_nr
1307                  ? states.remote->url[0]
1308                  : _("(no URL)"));
1309
1310        for_each_string_list_item(item, &states.stale)
1311                string_list_append(&refs_to_prune, item->util);
1312        string_list_sort(&refs_to_prune);
1313
1314        if (!dry_run)
1315                result |= delete_refs(&refs_to_prune);
1316
1317        for_each_string_list_item(item, &states.stale) {
1318                const char *refname = item->util;
1319
1320                if (dry_run)
1321                        printf_ln(_(" * [would prune] %s"),
1322                               abbrev_ref(refname, "refs/remotes/"));
1323                else
1324                        printf_ln(_(" * [pruned] %s"),
1325                               abbrev_ref(refname, "refs/remotes/"));
1326        }
1327
1328        warn_dangling_symrefs(stdout, dangling_msg, &refs_to_prune);
1329
1330        string_list_clear(&refs_to_prune, 0);
1331        free_remote_ref_states(&states);
1332        return result;
1333}
1334
1335static int prune(int argc, const char **argv)
1336{
1337        int dry_run = 0, result = 0;
1338        struct option options[] = {
1339                OPT__DRY_RUN(&dry_run, N_("dry run")),
1340                OPT_END()
1341        };
1342
1343        argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1344                             0);
1345
1346        if (argc < 1)
1347                usage_with_options(builtin_remote_prune_usage, options);
1348
1349        for (; argc; argc--, argv++)
1350                result |= prune_remote(*argv, dry_run);
1351
1352        return result;
1353}
1354
1355static int get_remote_default(const char *key, const char *value, void *priv)
1356{
1357        if (strcmp(key, "remotes.default") == 0) {
1358                int *found = priv;
1359                *found = 1;
1360        }
1361        return 0;
1362}
1363
1364static int update(int argc, const char **argv)
1365{
1366        int i, prune = -1;
1367        struct option options[] = {
1368                OPT_BOOL('p', "prune", &prune,
1369                         N_("prune remotes after fetching")),
1370                OPT_END()
1371        };
1372        struct argv_array fetch_argv = ARGV_ARRAY_INIT;
1373        int default_defined = 0;
1374        int retval;
1375
1376        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1377                             PARSE_OPT_KEEP_ARGV0);
1378
1379        argv_array_push(&fetch_argv, "fetch");
1380
1381        if (prune != -1)
1382                argv_array_push(&fetch_argv, prune ? "--prune" : "--no-prune");
1383        if (verbose)
1384                argv_array_push(&fetch_argv, "-v");
1385        argv_array_push(&fetch_argv, "--multiple");
1386        if (argc < 2)
1387                argv_array_push(&fetch_argv, "default");
1388        for (i = 1; i < argc; i++)
1389                argv_array_push(&fetch_argv, argv[i]);
1390
1391        if (strcmp(fetch_argv.argv[fetch_argv.argc-1], "default") == 0) {
1392                git_config(get_remote_default, &default_defined);
1393                if (!default_defined) {
1394                        argv_array_pop(&fetch_argv);
1395                        argv_array_push(&fetch_argv, "--all");
1396                }
1397        }
1398
1399        retval = run_command_v_opt(fetch_argv.argv, RUN_GIT_CMD);
1400        argv_array_clear(&fetch_argv);
1401        return retval;
1402}
1403
1404static int remove_all_fetch_refspecs(const char *remote, const char *key)
1405{
1406        return git_config_set_multivar(key, NULL, NULL, 1);
1407}
1408
1409static int add_branches(struct remote *remote, const char **branches,
1410                        const char *key)
1411{
1412        const char *remotename = remote->name;
1413        int mirror = remote->mirror;
1414        struct strbuf refspec = STRBUF_INIT;
1415
1416        for (; *branches; branches++)
1417                if (add_branch(key, *branches, remotename, mirror, &refspec)) {
1418                        strbuf_release(&refspec);
1419                        return 1;
1420                }
1421
1422        strbuf_release(&refspec);
1423        return 0;
1424}
1425
1426static int set_remote_branches(const char *remotename, const char **branches,
1427                                int add_mode)
1428{
1429        struct strbuf key = STRBUF_INIT;
1430        struct remote *remote;
1431
1432        strbuf_addf(&key, "remote.%s.fetch", remotename);
1433
1434        if (!remote_is_configured(remotename))
1435                die(_("No such remote '%s'"), remotename);
1436        remote = remote_get(remotename);
1437
1438        if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
1439                strbuf_release(&key);
1440                return 1;
1441        }
1442        if (add_branches(remote, branches, key.buf)) {
1443                strbuf_release(&key);
1444                return 1;
1445        }
1446
1447        strbuf_release(&key);
1448        return 0;
1449}
1450
1451static int set_branches(int argc, const char **argv)
1452{
1453        int add_mode = 0;
1454        struct option options[] = {
1455                OPT_BOOL('\0', "add", &add_mode, N_("add branch")),
1456                OPT_END()
1457        };
1458
1459        argc = parse_options(argc, argv, NULL, options,
1460                             builtin_remote_setbranches_usage, 0);
1461        if (argc == 0) {
1462                error(_("no remote specified"));
1463                usage_with_options(builtin_remote_setbranches_usage, options);
1464        }
1465        argv[argc] = NULL;
1466
1467        return set_remote_branches(argv[0], argv + 1, add_mode);
1468}
1469
1470static int set_url(int argc, const char **argv)
1471{
1472        int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1473        int matches = 0, negative_matches = 0;
1474        const char *remotename = NULL;
1475        const char *newurl = NULL;
1476        const char *oldurl = NULL;
1477        struct remote *remote;
1478        regex_t old_regex;
1479        const char **urlset;
1480        int urlset_nr;
1481        struct strbuf name_buf = STRBUF_INIT;
1482        struct option options[] = {
1483                OPT_BOOL('\0', "push", &push_mode,
1484                         N_("manipulate push URLs")),
1485                OPT_BOOL('\0', "add", &add_mode,
1486                         N_("add URL")),
1487                OPT_BOOL('\0', "delete", &delete_mode,
1488                            N_("delete URLs")),
1489                OPT_END()
1490        };
1491        argc = parse_options(argc, argv, NULL, options, builtin_remote_seturl_usage,
1492                             PARSE_OPT_KEEP_ARGV0);
1493
1494        if (add_mode && delete_mode)
1495                die(_("--add --delete doesn't make sense"));
1496
1497        if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1498                usage_with_options(builtin_remote_seturl_usage, options);
1499
1500        remotename = argv[1];
1501        newurl = argv[2];
1502        if (argc > 3)
1503                oldurl = argv[3];
1504
1505        if (delete_mode)
1506                oldurl = newurl;
1507
1508        if (!remote_is_configured(remotename))
1509                die(_("No such remote '%s'"), remotename);
1510        remote = remote_get(remotename);
1511
1512        if (push_mode) {
1513                strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1514                urlset = remote->pushurl;
1515                urlset_nr = remote->pushurl_nr;
1516        } else {
1517                strbuf_addf(&name_buf, "remote.%s.url", remotename);
1518                urlset = remote->url;
1519                urlset_nr = remote->url_nr;
1520        }
1521
1522        /* Special cases that add new entry. */
1523        if ((!oldurl && !delete_mode) || add_mode) {
1524                if (add_mode)
1525                        git_config_set_multivar(name_buf.buf, newurl,
1526                                "^$", 0);
1527                else
1528                        git_config_set(name_buf.buf, newurl);
1529                strbuf_release(&name_buf);
1530                return 0;
1531        }
1532
1533        /* Old URL specified. Demand that one matches. */
1534        if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1535                die(_("Invalid old URL pattern: %s"), oldurl);
1536
1537        for (i = 0; i < urlset_nr; i++)
1538                if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1539                        matches++;
1540                else
1541                        negative_matches++;
1542        if (!delete_mode && !matches)
1543                die(_("No such URL found: %s"), oldurl);
1544        if (delete_mode && !negative_matches && !push_mode)
1545                die(_("Will not delete all non-push URLs"));
1546
1547        regfree(&old_regex);
1548
1549        if (!delete_mode)
1550                git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1551        else
1552                git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1553        return 0;
1554}
1555
1556int cmd_remote(int argc, const char **argv, const char *prefix)
1557{
1558        struct option options[] = {
1559                OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")),
1560                OPT_END()
1561        };
1562        int result;
1563
1564        argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1565                PARSE_OPT_STOP_AT_NON_OPTION);
1566
1567        if (argc < 1)
1568                result = show_all();
1569        else if (!strcmp(argv[0], "add"))
1570                result = add(argc, argv);
1571        else if (!strcmp(argv[0], "rename"))
1572                result = mv(argc, argv);
1573        else if (!strcmp(argv[0], "rm") || !strcmp(argv[0], "remove"))
1574                result = rm(argc, argv);
1575        else if (!strcmp(argv[0], "set-head"))
1576                result = set_head(argc, argv);
1577        else if (!strcmp(argv[0], "set-branches"))
1578                result = set_branches(argc, argv);
1579        else if (!strcmp(argv[0], "set-url"))
1580                result = set_url(argc, argv);
1581        else if (!strcmp(argv[0], "show"))
1582                result = show(argc, argv);
1583        else if (!strcmp(argv[0], "prune"))
1584                result = prune(argc, argv);
1585        else if (!strcmp(argv[0], "update"))
1586                result = update(argc, argv);
1587        else {
1588                error(_("Unknown subcommand: %s"), argv[0]);
1589                usage_with_options(builtin_remote_usage, options);
1590        }
1591
1592        return result ? 1 : 0;
1593}