builtin / remote.con commit Merge branch 'dt/refs-backend-preamble' (b6d323f)
   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 rm(int argc, const char **argv)
 750{
 751        struct option options[] = {
 752                OPT_END()
 753        };
 754        struct remote *remote;
 755        struct strbuf buf = STRBUF_INIT;
 756        struct known_remotes known_remotes = { NULL, NULL };
 757        struct string_list branches = STRING_LIST_INIT_DUP;
 758        struct string_list skipped = STRING_LIST_INIT_DUP;
 759        struct branches_for_remote cb_data;
 760        int i, result;
 761
 762        memset(&cb_data, 0, sizeof(cb_data));
 763        cb_data.branches = &branches;
 764        cb_data.skipped = &skipped;
 765        cb_data.keep = &known_remotes;
 766
 767        if (argc != 2)
 768                usage_with_options(builtin_remote_rm_usage, options);
 769
 770        remote = remote_get(argv[1]);
 771        if (!remote)
 772                die(_("No such remote: %s"), argv[1]);
 773
 774        known_remotes.to_delete = remote;
 775        for_each_remote(add_known_remote, &known_remotes);
 776
 777        read_branches();
 778        for (i = 0; i < branch_list.nr; i++) {
 779                struct string_list_item *item = branch_list.items + i;
 780                struct branch_info *info = item->util;
 781                if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 782                        const char *keys[] = { "remote", "merge", NULL }, **k;
 783                        for (k = keys; *k; k++) {
 784                                strbuf_reset(&buf);
 785                                strbuf_addf(&buf, "branch.%s.%s",
 786                                                item->string, *k);
 787                                if (git_config_set(buf.buf, NULL)) {
 788                                        strbuf_release(&buf);
 789                                        return -1;
 790                                }
 791                        }
 792                }
 793        }
 794
 795        /*
 796         * We cannot just pass a function to for_each_ref() which deletes
 797         * the branches one by one, since for_each_ref() relies on cached
 798         * refs, which are invalidated when deleting a branch.
 799         */
 800        cb_data.remote = remote;
 801        result = for_each_ref(add_branch_for_removal, &cb_data);
 802        strbuf_release(&buf);
 803
 804        if (!result)
 805                result = delete_refs(&branches);
 806        string_list_clear(&branches, 0);
 807
 808        if (skipped.nr) {
 809                fprintf_ln(stderr,
 810                           Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 811                              "to delete it, use:",
 812                              "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 813                              "to delete them, use:",
 814                              skipped.nr));
 815                for (i = 0; i < skipped.nr; i++)
 816                        fprintf(stderr, "  git branch -d %s\n",
 817                                skipped.items[i].string);
 818        }
 819        string_list_clear(&skipped, 0);
 820
 821        if (!result) {
 822                strbuf_addf(&buf, "remote.%s", remote->name);
 823                if (git_config_rename_section(buf.buf, NULL) < 1)
 824                        return error(_("Could not remove config section '%s'"), buf.buf);
 825        }
 826
 827        return result;
 828}
 829
 830static void clear_push_info(void *util, const char *string)
 831{
 832        struct push_info *info = util;
 833        free(info->dest);
 834        free(info);
 835}
 836
 837static void free_remote_ref_states(struct ref_states *states)
 838{
 839        string_list_clear(&states->new, 0);
 840        string_list_clear(&states->stale, 1);
 841        string_list_clear(&states->tracked, 0);
 842        string_list_clear(&states->heads, 0);
 843        string_list_clear_func(&states->push, clear_push_info);
 844}
 845
 846static int append_ref_to_tracked_list(const char *refname,
 847        const struct object_id *oid, int flags, void *cb_data)
 848{
 849        struct ref_states *states = cb_data;
 850        struct refspec refspec;
 851
 852        if (flags & REF_ISSYMREF)
 853                return 0;
 854
 855        memset(&refspec, 0, sizeof(refspec));
 856        refspec.dst = (char *)refname;
 857        if (!remote_find_tracking(states->remote, &refspec))
 858                string_list_append(&states->tracked, abbrev_branch(refspec.src));
 859
 860        return 0;
 861}
 862
 863static int get_remote_ref_states(const char *name,
 864                                 struct ref_states *states,
 865                                 int query)
 866{
 867        struct transport *transport;
 868        const struct ref *remote_refs;
 869
 870        states->remote = remote_get(name);
 871        if (!states->remote)
 872                return error(_("No such remote: %s"), name);
 873
 874        read_branches();
 875
 876        if (query) {
 877                transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 878                        states->remote->url[0] : NULL);
 879                remote_refs = transport_get_remote_refs(transport);
 880                transport_disconnect(transport);
 881
 882                states->queried = 1;
 883                if (query & GET_REF_STATES)
 884                        get_ref_states(remote_refs, states);
 885                if (query & GET_HEAD_NAMES)
 886                        get_head_names(remote_refs, states);
 887                if (query & GET_PUSH_REF_STATES)
 888                        get_push_ref_states(remote_refs, states);
 889        } else {
 890                for_each_ref(append_ref_to_tracked_list, states);
 891                string_list_sort(&states->tracked);
 892                get_push_ref_states_noquery(states);
 893        }
 894
 895        return 0;
 896}
 897
 898struct show_info {
 899        struct string_list *list;
 900        struct ref_states *states;
 901        int width, width2;
 902        int any_rebase;
 903};
 904
 905static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 906{
 907        struct show_info *info = cb_data;
 908        int n = strlen(item->string);
 909        if (n > info->width)
 910                info->width = n;
 911        string_list_insert(info->list, item->string);
 912        return 0;
 913}
 914
 915static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 916{
 917        struct show_info *info = cb_data;
 918        struct ref_states *states = info->states;
 919        const char *name = item->string;
 920
 921        if (states->queried) {
 922                const char *fmt = "%s";
 923                const char *arg = "";
 924                if (string_list_has_string(&states->new, name)) {
 925                        fmt = _(" new (next fetch will store in remotes/%s)");
 926                        arg = states->remote->name;
 927                } else if (string_list_has_string(&states->tracked, name))
 928                        arg = _(" tracked");
 929                else if (string_list_has_string(&states->stale, name))
 930                        arg = _(" stale (use 'git remote prune' to remove)");
 931                else
 932                        arg = _(" ???");
 933                printf("    %-*s", info->width, name);
 934                printf(fmt, arg);
 935                printf("\n");
 936        } else
 937                printf("    %s\n", name);
 938
 939        return 0;
 940}
 941
 942static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 943{
 944        struct show_info *show_info = cb_data;
 945        struct ref_states *states = show_info->states;
 946        struct branch_info *branch_info = branch_item->util;
 947        struct string_list_item *item;
 948        int n;
 949
 950        if (!branch_info->merge.nr || !branch_info->remote_name ||
 951            strcmp(states->remote->name, branch_info->remote_name))
 952                return 0;
 953        if ((n = strlen(branch_item->string)) > show_info->width)
 954                show_info->width = n;
 955        if (branch_info->rebase)
 956                show_info->any_rebase = 1;
 957
 958        item = string_list_insert(show_info->list, branch_item->string);
 959        item->util = branch_info;
 960
 961        return 0;
 962}
 963
 964static int show_local_info_item(struct string_list_item *item, void *cb_data)
 965{
 966        struct show_info *show_info = cb_data;
 967        struct branch_info *branch_info = item->util;
 968        struct string_list *merge = &branch_info->merge;
 969        const char *also;
 970        int i;
 971
 972        if (branch_info->rebase && branch_info->merge.nr > 1) {
 973                error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"),
 974                        item->string);
 975                return 0;
 976        }
 977
 978        printf("    %-*s ", show_info->width, item->string);
 979        if (branch_info->rebase) {
 980                printf_ln(_("rebases onto remote %s"), merge->items[0].string);
 981                return 0;
 982        } else if (show_info->any_rebase) {
 983                printf_ln(_(" merges with remote %s"), merge->items[0].string);
 984                also = _("    and with remote");
 985        } else {
 986                printf_ln(_("merges with remote %s"), merge->items[0].string);
 987                also = _("   and with remote");
 988        }
 989        for (i = 1; i < merge->nr; i++)
 990                printf("    %-*s %s %s\n", show_info->width, "", also,
 991                       merge->items[i].string);
 992
 993        return 0;
 994}
 995
 996static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
 997{
 998        struct show_info *show_info = cb_data;
 999        struct push_info *push_info = push_item->util;
1000        struct string_list_item *item;
1001        int n;
1002        if ((n = strlen(push_item->string)) > show_info->width)
1003                show_info->width = n;
1004        if ((n = strlen(push_info->dest)) > show_info->width2)
1005                show_info->width2 = n;
1006        item = string_list_append(show_info->list, push_item->string);
1007        item->util = push_item->util;
1008        return 0;
1009}
1010
1011/*
1012 * Sorting comparison for a string list that has push_info
1013 * structs in its util field
1014 */
1015static int cmp_string_with_push(const void *va, const void *vb)
1016{
1017        const struct string_list_item *a = va;
1018        const struct string_list_item *b = vb;
1019        const struct push_info *a_push = a->util;
1020        const struct push_info *b_push = b->util;
1021        int cmp = strcmp(a->string, b->string);
1022        return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1023}
1024
1025static int show_push_info_item(struct string_list_item *item, void *cb_data)
1026{
1027        struct show_info *show_info = cb_data;
1028        struct push_info *push_info = item->util;
1029        const char *src = item->string, *status = NULL;
1030
1031        switch (push_info->status) {
1032        case PUSH_STATUS_CREATE:
1033                status = _("create");
1034                break;
1035        case PUSH_STATUS_DELETE:
1036                status = _("delete");
1037                src = _("(none)");
1038                break;
1039        case PUSH_STATUS_UPTODATE:
1040                status = _("up to date");
1041                break;
1042        case PUSH_STATUS_FASTFORWARD:
1043                status = _("fast-forwardable");
1044                break;
1045        case PUSH_STATUS_OUTOFDATE:
1046                status = _("local out of date");
1047                break;
1048        case PUSH_STATUS_NOTQUERIED:
1049                break;
1050        }
1051        if (status) {
1052                if (push_info->forced)
1053                        printf_ln(_("    %-*s forces to %-*s (%s)"), show_info->width, src,
1054                               show_info->width2, push_info->dest, status);
1055                else
1056                        printf_ln(_("    %-*s pushes to %-*s (%s)"), show_info->width, src,
1057                               show_info->width2, push_info->dest, status);
1058        } else {
1059                if (push_info->forced)
1060                        printf_ln(_("    %-*s forces to %s"), show_info->width, src,
1061                               push_info->dest);
1062                else
1063                        printf_ln(_("    %-*s pushes to %s"), show_info->width, src,
1064                               push_info->dest);
1065        }
1066        return 0;
1067}
1068
1069static int get_one_entry(struct remote *remote, void *priv)
1070{
1071        struct string_list *list = priv;
1072        struct strbuf url_buf = STRBUF_INIT;
1073        const char **url;
1074        int i, url_nr;
1075
1076        if (remote->url_nr > 0) {
1077                strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1078                string_list_append(list, remote->name)->util =
1079                                strbuf_detach(&url_buf, NULL);
1080        } else
1081                string_list_append(list, remote->name)->util = NULL;
1082        if (remote->pushurl_nr) {
1083                url = remote->pushurl;
1084                url_nr = remote->pushurl_nr;
1085        } else {
1086                url = remote->url;
1087                url_nr = remote->url_nr;
1088        }
1089        for (i = 0; i < url_nr; i++)
1090        {
1091                strbuf_addf(&url_buf, "%s (push)", url[i]);
1092                string_list_append(list, remote->name)->util =
1093                                strbuf_detach(&url_buf, NULL);
1094        }
1095
1096        return 0;
1097}
1098
1099static int show_all(void)
1100{
1101        struct string_list list = STRING_LIST_INIT_NODUP;
1102        int result;
1103
1104        list.strdup_strings = 1;
1105        result = for_each_remote(get_one_entry, &list);
1106
1107        if (!result) {
1108                int i;
1109
1110                string_list_sort(&list);
1111                for (i = 0; i < list.nr; i++) {
1112                        struct string_list_item *item = list.items + i;
1113                        if (verbose)
1114                                printf("%s\t%s\n", item->string,
1115                                        item->util ? (const char *)item->util : "");
1116                        else {
1117                                if (i && !strcmp((item - 1)->string, item->string))
1118                                        continue;
1119                                printf("%s\n", item->string);
1120                        }
1121                }
1122        }
1123        string_list_clear(&list, 1);
1124        return result;
1125}
1126
1127static int show(int argc, const char **argv)
1128{
1129        int no_query = 0, result = 0, query_flag = 0;
1130        struct option options[] = {
1131                OPT_BOOL('n', NULL, &no_query, N_("do not query remotes")),
1132                OPT_END()
1133        };
1134        struct ref_states states;
1135        struct string_list info_list = STRING_LIST_INIT_NODUP;
1136        struct show_info info;
1137
1138        argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1139                             0);
1140
1141        if (argc < 1)
1142                return show_all();
1143
1144        if (!no_query)
1145                query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1146
1147        memset(&states, 0, sizeof(states));
1148        memset(&info, 0, sizeof(info));
1149        info.states = &states;
1150        info.list = &info_list;
1151        for (; argc; argc--, argv++) {
1152                int i;
1153                const char **url;
1154                int url_nr;
1155
1156                get_remote_ref_states(*argv, &states, query_flag);
1157
1158                printf_ln(_("* remote %s"), *argv);
1159                printf_ln(_("  Fetch URL: %s"), states.remote->url_nr > 0 ?
1160                       states.remote->url[0] : _("(no URL)"));
1161                if (states.remote->pushurl_nr) {
1162                        url = states.remote->pushurl;
1163                        url_nr = states.remote->pushurl_nr;
1164                } else {
1165                        url = states.remote->url;
1166                        url_nr = states.remote->url_nr;
1167                }
1168                for (i = 0; i < url_nr; i++)
1169                        printf_ln(_("  Push  URL: %s"), url[i]);
1170                if (!i)
1171                        printf_ln(_("  Push  URL: %s"), "(no URL)");
1172                if (no_query)
1173                        printf_ln(_("  HEAD branch: %s"), "(not queried)");
1174                else if (!states.heads.nr)
1175                        printf_ln(_("  HEAD branch: %s"), "(unknown)");
1176                else if (states.heads.nr == 1)
1177                        printf_ln(_("  HEAD branch: %s"), states.heads.items[0].string);
1178                else {
1179                        printf(_("  HEAD branch (remote HEAD is ambiguous,"
1180                                 " may be one of the following):\n"));
1181                        for (i = 0; i < states.heads.nr; i++)
1182                                printf("    %s\n", states.heads.items[i].string);
1183                }
1184
1185                /* remote branch info */
1186                info.width = 0;
1187                for_each_string_list(&states.new, add_remote_to_show_info, &info);
1188                for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1189                for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1190                if (info.list->nr)
1191                        printf_ln(Q_("  Remote branch:%s",
1192                                     "  Remote branches:%s",
1193                                     info.list->nr),
1194                                  no_query ? _(" (status not queried)") : "");
1195                for_each_string_list(info.list, show_remote_info_item, &info);
1196                string_list_clear(info.list, 0);
1197
1198                /* git pull info */
1199                info.width = 0;
1200                info.any_rebase = 0;
1201                for_each_string_list(&branch_list, add_local_to_show_info, &info);
1202                if (info.list->nr)
1203                        printf_ln(Q_("  Local branch configured for 'git pull':",
1204                                     "  Local branches configured for 'git pull':",
1205                                     info.list->nr));
1206                for_each_string_list(info.list, show_local_info_item, &info);
1207                string_list_clear(info.list, 0);
1208
1209                /* git push info */
1210                if (states.remote->mirror)
1211                        printf_ln(_("  Local refs will be mirrored by 'git push'"));
1212
1213                info.width = info.width2 = 0;
1214                for_each_string_list(&states.push, add_push_to_show_info, &info);
1215                qsort(info.list->items, info.list->nr,
1216                        sizeof(*info.list->items), cmp_string_with_push);
1217                if (info.list->nr)
1218                        printf_ln(Q_("  Local ref configured for 'git push'%s:",
1219                                     "  Local refs configured for 'git push'%s:",
1220                                     info.list->nr),
1221                                  no_query ? _(" (status not queried)") : "");
1222                for_each_string_list(info.list, show_push_info_item, &info);
1223                string_list_clear(info.list, 0);
1224
1225                free_remote_ref_states(&states);
1226        }
1227
1228        return result;
1229}
1230
1231static int set_head(int argc, const char **argv)
1232{
1233        int i, opt_a = 0, opt_d = 0, result = 0;
1234        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1235        char *head_name = NULL;
1236
1237        struct option options[] = {
1238                OPT_BOOL('a', "auto", &opt_a,
1239                         N_("set refs/remotes/<name>/HEAD according to remote")),
1240                OPT_BOOL('d', "delete", &opt_d,
1241                         N_("delete refs/remotes/<name>/HEAD")),
1242                OPT_END()
1243        };
1244        argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1245                             0);
1246        if (argc)
1247                strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1248
1249        if (!opt_a && !opt_d && argc == 2) {
1250                head_name = xstrdup(argv[1]);
1251        } else if (opt_a && !opt_d && argc == 1) {
1252                struct ref_states states;
1253                memset(&states, 0, sizeof(states));
1254                get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1255                if (!states.heads.nr)
1256                        result |= error(_("Cannot determine remote HEAD"));
1257                else if (states.heads.nr > 1) {
1258                        result |= error(_("Multiple remote HEAD branches. "
1259                                          "Please choose one explicitly with:"));
1260                        for (i = 0; i < states.heads.nr; i++)
1261                                fprintf(stderr, "  git remote set-head %s %s\n",
1262                                        argv[0], states.heads.items[i].string);
1263                } else
1264                        head_name = xstrdup(states.heads.items[0].string);
1265                free_remote_ref_states(&states);
1266        } else if (opt_d && !opt_a && argc == 1) {
1267                if (delete_ref(buf.buf, NULL, REF_NODEREF))
1268                        result |= error(_("Could not delete %s"), buf.buf);
1269        } else
1270                usage_with_options(builtin_remote_sethead_usage, options);
1271
1272        if (head_name) {
1273                strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1274                /* make sure it's valid */
1275                if (!ref_exists(buf2.buf))
1276                        result |= error(_("Not a valid ref: %s"), buf2.buf);
1277                else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1278                        result |= error(_("Could not setup %s"), buf.buf);
1279                if (opt_a)
1280                        printf("%s/HEAD set to %s\n", argv[0], head_name);
1281                free(head_name);
1282        }
1283
1284        strbuf_release(&buf);
1285        strbuf_release(&buf2);
1286        return result;
1287}
1288
1289static int prune_remote(const char *remote, int dry_run)
1290{
1291        int result = 0;
1292        struct ref_states states;
1293        struct string_list refs_to_prune = STRING_LIST_INIT_NODUP;
1294        struct string_list_item *item;
1295        const char *dangling_msg = dry_run
1296                ? _(" %s will become dangling!")
1297                : _(" %s has become dangling!");
1298
1299        memset(&states, 0, sizeof(states));
1300        get_remote_ref_states(remote, &states, GET_REF_STATES);
1301
1302        if (!states.stale.nr) {
1303                free_remote_ref_states(&states);
1304                return 0;
1305        }
1306
1307        printf_ln(_("Pruning %s"), remote);
1308        printf_ln(_("URL: %s"),
1309                  states.remote->url_nr
1310                  ? states.remote->url[0]
1311                  : _("(no URL)"));
1312
1313        for_each_string_list_item(item, &states.stale)
1314                string_list_append(&refs_to_prune, item->util);
1315        string_list_sort(&refs_to_prune);
1316
1317        if (!dry_run)
1318                result |= delete_refs(&refs_to_prune);
1319
1320        for_each_string_list_item(item, &states.stale) {
1321                const char *refname = item->util;
1322
1323                if (dry_run)
1324                        printf_ln(_(" * [would prune] %s"),
1325                               abbrev_ref(refname, "refs/remotes/"));
1326                else
1327                        printf_ln(_(" * [pruned] %s"),
1328                               abbrev_ref(refname, "refs/remotes/"));
1329        }
1330
1331        warn_dangling_symrefs(stdout, dangling_msg, &refs_to_prune);
1332
1333        string_list_clear(&refs_to_prune, 0);
1334        free_remote_ref_states(&states);
1335        return result;
1336}
1337
1338static int prune(int argc, const char **argv)
1339{
1340        int dry_run = 0, result = 0;
1341        struct option options[] = {
1342                OPT__DRY_RUN(&dry_run, N_("dry run")),
1343                OPT_END()
1344        };
1345
1346        argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1347                             0);
1348
1349        if (argc < 1)
1350                usage_with_options(builtin_remote_prune_usage, options);
1351
1352        for (; argc; argc--, argv++)
1353                result |= prune_remote(*argv, dry_run);
1354
1355        return result;
1356}
1357
1358static int get_remote_default(const char *key, const char *value, void *priv)
1359{
1360        if (strcmp(key, "remotes.default") == 0) {
1361                int *found = priv;
1362                *found = 1;
1363        }
1364        return 0;
1365}
1366
1367static int update(int argc, const char **argv)
1368{
1369        int i, prune = -1;
1370        struct option options[] = {
1371                OPT_BOOL('p', "prune", &prune,
1372                         N_("prune remotes after fetching")),
1373                OPT_END()
1374        };
1375        struct argv_array fetch_argv = ARGV_ARRAY_INIT;
1376        int default_defined = 0;
1377        int retval;
1378
1379        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1380                             PARSE_OPT_KEEP_ARGV0);
1381
1382        argv_array_push(&fetch_argv, "fetch");
1383
1384        if (prune != -1)
1385                argv_array_push(&fetch_argv, prune ? "--prune" : "--no-prune");
1386        if (verbose)
1387                argv_array_push(&fetch_argv, "-v");
1388        argv_array_push(&fetch_argv, "--multiple");
1389        if (argc < 2)
1390                argv_array_push(&fetch_argv, "default");
1391        for (i = 1; i < argc; i++)
1392                argv_array_push(&fetch_argv, argv[i]);
1393
1394        if (strcmp(fetch_argv.argv[fetch_argv.argc-1], "default") == 0) {
1395                git_config(get_remote_default, &default_defined);
1396                if (!default_defined) {
1397                        argv_array_pop(&fetch_argv);
1398                        argv_array_push(&fetch_argv, "--all");
1399                }
1400        }
1401
1402        retval = run_command_v_opt(fetch_argv.argv, RUN_GIT_CMD);
1403        argv_array_clear(&fetch_argv);
1404        return retval;
1405}
1406
1407static int remove_all_fetch_refspecs(const char *remote, const char *key)
1408{
1409        return git_config_set_multivar(key, NULL, NULL, 1);
1410}
1411
1412static int add_branches(struct remote *remote, const char **branches,
1413                        const char *key)
1414{
1415        const char *remotename = remote->name;
1416        int mirror = remote->mirror;
1417        struct strbuf refspec = STRBUF_INIT;
1418
1419        for (; *branches; branches++)
1420                if (add_branch(key, *branches, remotename, mirror, &refspec)) {
1421                        strbuf_release(&refspec);
1422                        return 1;
1423                }
1424
1425        strbuf_release(&refspec);
1426        return 0;
1427}
1428
1429static int set_remote_branches(const char *remotename, const char **branches,
1430                                int add_mode)
1431{
1432        struct strbuf key = STRBUF_INIT;
1433        struct remote *remote;
1434
1435        strbuf_addf(&key, "remote.%s.fetch", remotename);
1436
1437        if (!remote_is_configured(remotename))
1438                die(_("No such remote '%s'"), remotename);
1439        remote = remote_get(remotename);
1440
1441        if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
1442                strbuf_release(&key);
1443                return 1;
1444        }
1445        if (add_branches(remote, branches, key.buf)) {
1446                strbuf_release(&key);
1447                return 1;
1448        }
1449
1450        strbuf_release(&key);
1451        return 0;
1452}
1453
1454static int set_branches(int argc, const char **argv)
1455{
1456        int add_mode = 0;
1457        struct option options[] = {
1458                OPT_BOOL('\0', "add", &add_mode, N_("add branch")),
1459                OPT_END()
1460        };
1461
1462        argc = parse_options(argc, argv, NULL, options,
1463                             builtin_remote_setbranches_usage, 0);
1464        if (argc == 0) {
1465                error(_("no remote specified"));
1466                usage_with_options(builtin_remote_setbranches_usage, options);
1467        }
1468        argv[argc] = NULL;
1469
1470        return set_remote_branches(argv[0], argv + 1, add_mode);
1471}
1472
1473static int set_url(int argc, const char **argv)
1474{
1475        int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1476        int matches = 0, negative_matches = 0;
1477        const char *remotename = NULL;
1478        const char *newurl = NULL;
1479        const char *oldurl = NULL;
1480        struct remote *remote;
1481        regex_t old_regex;
1482        const char **urlset;
1483        int urlset_nr;
1484        struct strbuf name_buf = STRBUF_INIT;
1485        struct option options[] = {
1486                OPT_BOOL('\0', "push", &push_mode,
1487                         N_("manipulate push URLs")),
1488                OPT_BOOL('\0', "add", &add_mode,
1489                         N_("add URL")),
1490                OPT_BOOL('\0', "delete", &delete_mode,
1491                            N_("delete URLs")),
1492                OPT_END()
1493        };
1494        argc = parse_options(argc, argv, NULL, options, builtin_remote_seturl_usage,
1495                             PARSE_OPT_KEEP_ARGV0);
1496
1497        if (add_mode && delete_mode)
1498                die(_("--add --delete doesn't make sense"));
1499
1500        if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1501                usage_with_options(builtin_remote_seturl_usage, options);
1502
1503        remotename = argv[1];
1504        newurl = argv[2];
1505        if (argc > 3)
1506                oldurl = argv[3];
1507
1508        if (delete_mode)
1509                oldurl = newurl;
1510
1511        if (!remote_is_configured(remotename))
1512                die(_("No such remote '%s'"), remotename);
1513        remote = remote_get(remotename);
1514
1515        if (push_mode) {
1516                strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1517                urlset = remote->pushurl;
1518                urlset_nr = remote->pushurl_nr;
1519        } else {
1520                strbuf_addf(&name_buf, "remote.%s.url", remotename);
1521                urlset = remote->url;
1522                urlset_nr = remote->url_nr;
1523        }
1524
1525        /* Special cases that add new entry. */
1526        if ((!oldurl && !delete_mode) || add_mode) {
1527                if (add_mode)
1528                        git_config_set_multivar(name_buf.buf, newurl,
1529                                "^$", 0);
1530                else
1531                        git_config_set(name_buf.buf, newurl);
1532                strbuf_release(&name_buf);
1533                return 0;
1534        }
1535
1536        /* Old URL specified. Demand that one matches. */
1537        if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1538                die(_("Invalid old URL pattern: %s"), oldurl);
1539
1540        for (i = 0; i < urlset_nr; i++)
1541                if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1542                        matches++;
1543                else
1544                        negative_matches++;
1545        if (!delete_mode && !matches)
1546                die(_("No such URL found: %s"), oldurl);
1547        if (delete_mode && !negative_matches && !push_mode)
1548                die(_("Will not delete all non-push URLs"));
1549
1550        regfree(&old_regex);
1551
1552        if (!delete_mode)
1553                git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1554        else
1555                git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1556        return 0;
1557}
1558
1559int cmd_remote(int argc, const char **argv, const char *prefix)
1560{
1561        struct option options[] = {
1562                OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")),
1563                OPT_END()
1564        };
1565        int result;
1566
1567        argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1568                PARSE_OPT_STOP_AT_NON_OPTION);
1569
1570        if (argc < 1)
1571                result = show_all();
1572        else if (!strcmp(argv[0], "add"))
1573                result = add(argc, argv);
1574        else if (!strcmp(argv[0], "rename"))
1575                result = mv(argc, argv);
1576        else if (!strcmp(argv[0], "rm") || !strcmp(argv[0], "remove"))
1577                result = rm(argc, argv);
1578        else if (!strcmp(argv[0], "set-head"))
1579                result = set_head(argc, argv);
1580        else if (!strcmp(argv[0], "set-branches"))
1581                result = set_branches(argc, argv);
1582        else if (!strcmp(argv[0], "set-url"))
1583                result = set_url(argc, argv);
1584        else if (!strcmp(argv[0], "show"))
1585                result = show(argc, argv);
1586        else if (!strcmp(argv[0], "prune"))
1587                result = prune(argc, argv);
1588        else if (!strcmp(argv[0], "update"))
1589                result = update(argc, argv);
1590        else {
1591                error(_("Unknown subcommand: %s"), argv[0]);
1592                usage_with_options(builtin_remote_usage, options);
1593        }
1594
1595        return result ? 1 : 0;
1596}