builtin / remote.con commit Merge branch 'pw/completion-show-branch' (47c33b4)
   1#include "builtin.h"
   2#include "parse-options.h"
   3#include "transport.h"
   4#include "remote.h"
   5#include "string-list.h"
   6#include "strbuf.h"
   7#include "run-command.h"
   8#include "refs.h"
   9#include "argv-array.h"
  10
  11static const char * const builtin_remote_usage[] = {
  12        N_("git remote [-v | --verbose]"),
  13        N_("git remote add [-t <branch>] [-m <master>] [-f] [--tags | --no-tags] [--mirror=<fetch|push>] <name> <url>"),
  14        N_("git remote rename <old> <new>"),
  15        N_("git remote remove <name>"),
  16        N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
  17        N_("git remote [-v | --verbose] show [-n] <name>"),
  18        N_("git remote prune [-n | --dry-run] <name>"),
  19        N_("git remote [-v | --verbose] update [-p | --prune] [(<group> | <remote>)...]"),
  20        N_("git remote set-branches [--add] <name> <branch>..."),
  21        N_("git remote get-url [--push] [--all] <name>"),
  22        N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
  23        N_("git remote set-url --add <name> <newurl>"),
  24        N_("git remote set-url --delete <name> <url>"),
  25        NULL
  26};
  27
  28static const char * const builtin_remote_add_usage[] = {
  29        N_("git remote add [<options>] <name> <url>"),
  30        NULL
  31};
  32
  33static const char * const builtin_remote_rename_usage[] = {
  34        N_("git remote rename <old> <new>"),
  35        NULL
  36};
  37
  38static const char * const builtin_remote_rm_usage[] = {
  39        N_("git remote remove <name>"),
  40        NULL
  41};
  42
  43static const char * const builtin_remote_sethead_usage[] = {
  44        N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
  45        NULL
  46};
  47
  48static const char * const builtin_remote_setbranches_usage[] = {
  49        N_("git remote set-branches <name> <branch>..."),
  50        N_("git remote set-branches --add <name> <branch>..."),
  51        NULL
  52};
  53
  54static const char * const builtin_remote_show_usage[] = {
  55        N_("git remote show [<options>] <name>"),
  56        NULL
  57};
  58
  59static const char * const builtin_remote_prune_usage[] = {
  60        N_("git remote prune [<options>] <name>"),
  61        NULL
  62};
  63
  64static const char * const builtin_remote_update_usage[] = {
  65        N_("git remote update [<options>] [<group> | <remote>]..."),
  66        NULL
  67};
  68
  69static const char * const builtin_remote_geturl_usage[] = {
  70        N_("git remote get-url [--push] [--all] <name>"),
  71        NULL
  72};
  73
  74static const char * const builtin_remote_seturl_usage[] = {
  75        N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
  76        N_("git remote set-url --add <name> <newurl>"),
  77        N_("git remote set-url --delete <name> <url>"),
  78        NULL
  79};
  80
  81#define GET_REF_STATES (1<<0)
  82#define GET_HEAD_NAMES (1<<1)
  83#define GET_PUSH_REF_STATES (1<<2)
  84
  85static int verbose;
  86
  87static int fetch_remote(const char *name)
  88{
  89        const char *argv[] = { "fetch", name, NULL, NULL };
  90        if (verbose) {
  91                argv[1] = "-v";
  92                argv[2] = name;
  93        }
  94        printf_ln(_("Updating %s"), name);
  95        if (run_command_v_opt(argv, RUN_GIT_CMD))
  96                return error(_("Could not fetch %s"), name);
  97        return 0;
  98}
  99
 100enum {
 101        TAGS_UNSET = 0,
 102        TAGS_DEFAULT = 1,
 103        TAGS_SET = 2
 104};
 105
 106#define MIRROR_NONE 0
 107#define MIRROR_FETCH 1
 108#define MIRROR_PUSH 2
 109#define MIRROR_BOTH (MIRROR_FETCH|MIRROR_PUSH)
 110
 111static int add_branch(const char *key, const char *branchname,
 112                const char *remotename, int mirror, struct strbuf *tmp)
 113{
 114        strbuf_reset(tmp);
 115        strbuf_addch(tmp, '+');
 116        if (mirror)
 117                strbuf_addf(tmp, "refs/%s:refs/%s",
 118                                branchname, branchname);
 119        else
 120                strbuf_addf(tmp, "refs/heads/%s:refs/remotes/%s/%s",
 121                                branchname, remotename, branchname);
 122        return git_config_set_multivar(key, tmp->buf, "^$", 0);
 123}
 124
 125static const char mirror_advice[] =
 126N_("--mirror is dangerous and deprecated; please\n"
 127   "\t use --mirror=fetch or --mirror=push instead");
 128
 129static int parse_mirror_opt(const struct option *opt, const char *arg, int not)
 130{
 131        unsigned *mirror = opt->value;
 132        if (not)
 133                *mirror = MIRROR_NONE;
 134        else if (!arg) {
 135                warning("%s", _(mirror_advice));
 136                *mirror = MIRROR_BOTH;
 137        }
 138        else if (!strcmp(arg, "fetch"))
 139                *mirror = MIRROR_FETCH;
 140        else if (!strcmp(arg, "push"))
 141                *mirror = MIRROR_PUSH;
 142        else
 143                return error(_("unknown mirror argument: %s"), arg);
 144        return 0;
 145}
 146
 147static int add(int argc, const char **argv)
 148{
 149        int fetch = 0, fetch_tags = TAGS_DEFAULT;
 150        unsigned mirror = MIRROR_NONE;
 151        struct string_list track = STRING_LIST_INIT_NODUP;
 152        const char *master = NULL;
 153        struct remote *remote;
 154        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
 155        const char *name, *url;
 156        int i;
 157
 158        struct option options[] = {
 159                OPT_BOOL('f', "fetch", &fetch, N_("fetch the remote branches")),
 160                OPT_SET_INT(0, "tags", &fetch_tags,
 161                            N_("import all tags and associated objects when fetching"),
 162                            TAGS_SET),
 163                OPT_SET_INT(0, NULL, &fetch_tags,
 164                            N_("or do not fetch any tag at all (--no-tags)"), TAGS_UNSET),
 165                OPT_STRING_LIST('t', "track", &track, N_("branch"),
 166                                N_("branch(es) to track")),
 167                OPT_STRING('m', "master", &master, N_("branch"), N_("master branch")),
 168                { OPTION_CALLBACK, 0, "mirror", &mirror, N_("push|fetch"),
 169                        N_("set up remote as a mirror to push to or fetch from"),
 170                        PARSE_OPT_OPTARG, parse_mirror_opt },
 171                OPT_END()
 172        };
 173
 174        argc = parse_options(argc, argv, NULL, options, builtin_remote_add_usage,
 175                             0);
 176
 177        if (argc != 2)
 178                usage_with_options(builtin_remote_add_usage, options);
 179
 180        if (mirror && master)
 181                die(_("specifying a master branch makes no sense with --mirror"));
 182        if (mirror && !(mirror & MIRROR_FETCH) && track.nr)
 183                die(_("specifying branches to track makes sense only with fetch mirrors"));
 184
 185        name = argv[0];
 186        url = argv[1];
 187
 188        remote = remote_get(name);
 189        if (remote && (remote->url_nr > 1 ||
 190                        (strcmp(name, remote->url[0]) &&
 191                                strcmp(url, remote->url[0])) ||
 192                        remote->fetch_refspec_nr))
 193                die(_("remote %s already exists."), name);
 194
 195        strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
 196        if (!valid_fetch_refspec(buf2.buf))
 197                die(_("'%s' is not a valid remote name"), name);
 198
 199        strbuf_addf(&buf, "remote.%s.url", name);
 200        if (git_config_set(buf.buf, url))
 201                return 1;
 202
 203        if (!mirror || mirror & MIRROR_FETCH) {
 204                strbuf_reset(&buf);
 205                strbuf_addf(&buf, "remote.%s.fetch", name);
 206                if (track.nr == 0)
 207                        string_list_append(&track, "*");
 208                for (i = 0; i < track.nr; i++) {
 209                        if (add_branch(buf.buf, track.items[i].string,
 210                                       name, mirror, &buf2))
 211                                return 1;
 212                }
 213        }
 214
 215        if (mirror & MIRROR_PUSH) {
 216                strbuf_reset(&buf);
 217                strbuf_addf(&buf, "remote.%s.mirror", name);
 218                if (git_config_set(buf.buf, "true"))
 219                        return 1;
 220        }
 221
 222        if (fetch_tags != TAGS_DEFAULT) {
 223                strbuf_reset(&buf);
 224                strbuf_addf(&buf, "remote.%s.tagopt", name);
 225                if (git_config_set(buf.buf,
 226                        fetch_tags == TAGS_SET ? "--tags" : "--no-tags"))
 227                        return 1;
 228        }
 229
 230        if (fetch && fetch_remote(name))
 231                return 1;
 232
 233        if (master) {
 234                strbuf_reset(&buf);
 235                strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
 236
 237                strbuf_reset(&buf2);
 238                strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
 239
 240                if (create_symref(buf.buf, buf2.buf, "remote add"))
 241                        return error(_("Could not setup master '%s'"), master);
 242        }
 243
 244        strbuf_release(&buf);
 245        strbuf_release(&buf2);
 246        string_list_clear(&track, 0);
 247
 248        return 0;
 249}
 250
 251struct branch_info {
 252        char *remote_name;
 253        struct string_list merge;
 254        enum { NO_REBASE, NORMAL_REBASE, INTERACTIVE_REBASE } rebase;
 255};
 256
 257static struct string_list branch_list;
 258
 259static const char *abbrev_ref(const char *name, const char *prefix)
 260{
 261        skip_prefix(name, prefix, &name);
 262        return name;
 263}
 264#define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 265
 266static int config_read_branches(const char *key, const char *value, void *cb)
 267{
 268        if (starts_with(key, "branch.")) {
 269                const char *orig_key = key;
 270                char *name;
 271                struct string_list_item *item;
 272                struct branch_info *info;
 273                enum { REMOTE, MERGE, REBASE } type;
 274                size_t key_len;
 275
 276                key += 7;
 277                if (strip_suffix(key, ".remote", &key_len)) {
 278                        name = xmemdupz(key, key_len);
 279                        type = REMOTE;
 280                } else if (strip_suffix(key, ".merge", &key_len)) {
 281                        name = xmemdupz(key, key_len);
 282                        type = MERGE;
 283                } else if (strip_suffix(key, ".rebase", &key_len)) {
 284                        name = xmemdupz(key, key_len);
 285                        type = REBASE;
 286                } else
 287                        return 0;
 288
 289                item = string_list_insert(&branch_list, name);
 290
 291                if (!item->util)
 292                        item->util = xcalloc(1, sizeof(struct branch_info));
 293                info = item->util;
 294                if (type == REMOTE) {
 295                        if (info->remote_name)
 296                                warning(_("more than one %s"), orig_key);
 297                        info->remote_name = xstrdup(value);
 298                } else if (type == MERGE) {
 299                        char *space = strchr(value, ' ');
 300                        value = abbrev_branch(value);
 301                        while (space) {
 302                                char *merge;
 303                                merge = xstrndup(value, space - value);
 304                                string_list_append(&info->merge, merge);
 305                                value = abbrev_branch(space + 1);
 306                                space = strchr(value, ' ');
 307                        }
 308                        string_list_append(&info->merge, xstrdup(value));
 309                } else {
 310                        int v = git_config_maybe_bool(orig_key, value);
 311                        if (v >= 0)
 312                                info->rebase = v;
 313                        else if (!strcmp(value, "preserve"))
 314                                info->rebase = NORMAL_REBASE;
 315                        else if (!strcmp(value, "interactive"))
 316                                info->rebase = INTERACTIVE_REBASE;
 317                }
 318        }
 319        return 0;
 320}
 321
 322static void read_branches(void)
 323{
 324        if (branch_list.nr)
 325                return;
 326        git_config(config_read_branches, NULL);
 327}
 328
 329struct ref_states {
 330        struct remote *remote;
 331        struct string_list new, stale, tracked, heads, push;
 332        int queried;
 333};
 334
 335static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 336{
 337        struct ref *fetch_map = NULL, **tail = &fetch_map;
 338        struct ref *ref, *stale_refs;
 339        int i;
 340
 341        for (i = 0; i < states->remote->fetch_refspec_nr; i++)
 342                if (get_fetch_map(remote_refs, states->remote->fetch + i, &tail, 1))
 343                        die(_("Could not get fetch map for refspec %s"),
 344                                states->remote->fetch_refspec[i]);
 345
 346        states->new.strdup_strings = 1;
 347        states->tracked.strdup_strings = 1;
 348        states->stale.strdup_strings = 1;
 349        for (ref = fetch_map; ref; ref = ref->next) {
 350                if (!ref->peer_ref || !ref_exists(ref->peer_ref->name))
 351                        string_list_append(&states->new, abbrev_branch(ref->name));
 352                else
 353                        string_list_append(&states->tracked, abbrev_branch(ref->name));
 354        }
 355        stale_refs = get_stale_heads(states->remote->fetch,
 356                                     states->remote->fetch_refspec_nr, fetch_map);
 357        for (ref = stale_refs; ref; ref = ref->next) {
 358                struct string_list_item *item =
 359                        string_list_append(&states->stale, abbrev_branch(ref->name));
 360                item->util = xstrdup(ref->name);
 361        }
 362        free_refs(stale_refs);
 363        free_refs(fetch_map);
 364
 365        string_list_sort(&states->new);
 366        string_list_sort(&states->tracked);
 367        string_list_sort(&states->stale);
 368
 369        return 0;
 370}
 371
 372struct push_info {
 373        char *dest;
 374        int forced;
 375        enum {
 376                PUSH_STATUS_CREATE = 0,
 377                PUSH_STATUS_DELETE,
 378                PUSH_STATUS_UPTODATE,
 379                PUSH_STATUS_FASTFORWARD,
 380                PUSH_STATUS_OUTOFDATE,
 381                PUSH_STATUS_NOTQUERIED
 382        } status;
 383};
 384
 385static int get_push_ref_states(const struct ref *remote_refs,
 386        struct ref_states *states)
 387{
 388        struct remote *remote = states->remote;
 389        struct ref *ref, *local_refs, *push_map;
 390        if (remote->mirror)
 391                return 0;
 392
 393        local_refs = get_local_heads();
 394        push_map = copy_ref_list(remote_refs);
 395
 396        match_push_refs(local_refs, &push_map, remote->push_refspec_nr,
 397                        remote->push_refspec, MATCH_REFS_NONE);
 398
 399        states->push.strdup_strings = 1;
 400        for (ref = push_map; ref; ref = ref->next) {
 401                struct string_list_item *item;
 402                struct push_info *info;
 403
 404                if (!ref->peer_ref)
 405                        continue;
 406                oidcpy(&ref->new_oid, &ref->peer_ref->new_oid);
 407
 408                item = string_list_append(&states->push,
 409                                          abbrev_branch(ref->peer_ref->name));
 410                item->util = xcalloc(1, sizeof(struct push_info));
 411                info = item->util;
 412                info->forced = ref->force;
 413                info->dest = xstrdup(abbrev_branch(ref->name));
 414
 415                if (is_null_oid(&ref->new_oid)) {
 416                        info->status = PUSH_STATUS_DELETE;
 417                } else if (!oidcmp(&ref->old_oid, &ref->new_oid))
 418                        info->status = PUSH_STATUS_UPTODATE;
 419                else if (is_null_oid(&ref->old_oid))
 420                        info->status = PUSH_STATUS_CREATE;
 421                else if (has_object_file(&ref->old_oid) &&
 422                         ref_newer(&ref->new_oid, &ref->old_oid))
 423                        info->status = PUSH_STATUS_FASTFORWARD;
 424                else
 425                        info->status = PUSH_STATUS_OUTOFDATE;
 426        }
 427        free_refs(local_refs);
 428        free_refs(push_map);
 429        return 0;
 430}
 431
 432static int get_push_ref_states_noquery(struct ref_states *states)
 433{
 434        int i;
 435        struct remote *remote = states->remote;
 436        struct string_list_item *item;
 437        struct push_info *info;
 438
 439        if (remote->mirror)
 440                return 0;
 441
 442        states->push.strdup_strings = 1;
 443        if (!remote->push_refspec_nr) {
 444                item = string_list_append(&states->push, _("(matching)"));
 445                info = item->util = xcalloc(1, sizeof(struct push_info));
 446                info->status = PUSH_STATUS_NOTQUERIED;
 447                info->dest = xstrdup(item->string);
 448        }
 449        for (i = 0; i < remote->push_refspec_nr; i++) {
 450                struct refspec *spec = remote->push + i;
 451                if (spec->matching)
 452                        item = string_list_append(&states->push, _("(matching)"));
 453                else if (strlen(spec->src))
 454                        item = string_list_append(&states->push, spec->src);
 455                else
 456                        item = string_list_append(&states->push, _("(delete)"));
 457
 458                info = item->util = xcalloc(1, sizeof(struct push_info));
 459                info->forced = spec->force;
 460                info->status = PUSH_STATUS_NOTQUERIED;
 461                info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 462        }
 463        return 0;
 464}
 465
 466static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 467{
 468        struct ref *ref, *matches;
 469        struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 470        struct refspec refspec;
 471
 472        refspec.force = 0;
 473        refspec.pattern = 1;
 474        refspec.src = refspec.dst = "refs/heads/*";
 475        states->heads.strdup_strings = 1;
 476        get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 477        matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 478                                    fetch_map, 1);
 479        for (ref = matches; ref; ref = ref->next)
 480                string_list_append(&states->heads, abbrev_branch(ref->name));
 481
 482        free_refs(fetch_map);
 483        free_refs(matches);
 484
 485        return 0;
 486}
 487
 488struct known_remote {
 489        struct known_remote *next;
 490        struct remote *remote;
 491};
 492
 493struct known_remotes {
 494        struct remote *to_delete;
 495        struct known_remote *list;
 496};
 497
 498static int add_known_remote(struct remote *remote, void *cb_data)
 499{
 500        struct known_remotes *all = cb_data;
 501        struct known_remote *r;
 502
 503        if (!strcmp(all->to_delete->name, remote->name))
 504                return 0;
 505
 506        r = xmalloc(sizeof(*r));
 507        r->remote = remote;
 508        r->next = all->list;
 509        all->list = r;
 510        return 0;
 511}
 512
 513struct branches_for_remote {
 514        struct remote *remote;
 515        struct string_list *branches, *skipped;
 516        struct known_remotes *keep;
 517};
 518
 519static int add_branch_for_removal(const char *refname,
 520        const struct object_id *oid, int flags, void *cb_data)
 521{
 522        struct branches_for_remote *branches = cb_data;
 523        struct refspec refspec;
 524        struct known_remote *kr;
 525
 526        memset(&refspec, 0, sizeof(refspec));
 527        refspec.dst = (char *)refname;
 528        if (remote_find_tracking(branches->remote, &refspec))
 529                return 0;
 530
 531        /* don't delete a branch if another remote also uses it */
 532        for (kr = branches->keep->list; kr; kr = kr->next) {
 533                memset(&refspec, 0, sizeof(refspec));
 534                refspec.dst = (char *)refname;
 535                if (!remote_find_tracking(kr->remote, &refspec))
 536                        return 0;
 537        }
 538
 539        /* don't delete non-remote-tracking refs */
 540        if (!starts_with(refname, "refs/remotes/")) {
 541                /* advise user how to delete local branches */
 542                if (starts_with(refname, "refs/heads/"))
 543                        string_list_append(branches->skipped,
 544                                           abbrev_branch(refname));
 545                /* silently skip over other non-remote refs */
 546                return 0;
 547        }
 548
 549        /* make sure that symrefs are deleted */
 550        if (flags & REF_ISSYMREF)
 551                return unlink(git_path("%s", refname));
 552
 553        string_list_append(branches->branches, refname);
 554
 555        return 0;
 556}
 557
 558struct rename_info {
 559        const char *old;
 560        const char *new;
 561        struct string_list *remote_branches;
 562};
 563
 564static int read_remote_branches(const char *refname,
 565        const struct object_id *oid, int flags, void *cb_data)
 566{
 567        struct rename_info *rename = cb_data;
 568        struct strbuf buf = STRBUF_INIT;
 569        struct string_list_item *item;
 570        int flag;
 571        struct object_id orig_oid;
 572        const char *symref;
 573
 574        strbuf_addf(&buf, "refs/remotes/%s/", rename->old);
 575        if (starts_with(refname, buf.buf)) {
 576                item = string_list_append(rename->remote_branches, xstrdup(refname));
 577                symref = resolve_ref_unsafe(refname, RESOLVE_REF_READING,
 578                                            orig_oid.hash, &flag);
 579                if (flag & REF_ISSYMREF)
 580                        item->util = xstrdup(symref);
 581                else
 582                        item->util = NULL;
 583        }
 584
 585        return 0;
 586}
 587
 588static int migrate_file(struct remote *remote)
 589{
 590        struct strbuf buf = STRBUF_INIT;
 591        int i;
 592
 593        strbuf_addf(&buf, "remote.%s.url", remote->name);
 594        for (i = 0; i < remote->url_nr; i++)
 595                if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0))
 596                        return error(_("Could not append '%s' to '%s'"),
 597                                        remote->url[i], buf.buf);
 598        strbuf_reset(&buf);
 599        strbuf_addf(&buf, "remote.%s.push", remote->name);
 600        for (i = 0; i < remote->push_refspec_nr; i++)
 601                if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0))
 602                        return error(_("Could not append '%s' to '%s'"),
 603                                        remote->push_refspec[i], buf.buf);
 604        strbuf_reset(&buf);
 605        strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 606        for (i = 0; i < remote->fetch_refspec_nr; i++)
 607                if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0))
 608                        return error(_("Could not append '%s' to '%s'"),
 609                                        remote->fetch_refspec[i], buf.buf);
 610        if (remote->origin == REMOTE_REMOTES)
 611                unlink_or_warn(git_path("remotes/%s", remote->name));
 612        else if (remote->origin == REMOTE_BRANCHES)
 613                unlink_or_warn(git_path("branches/%s", remote->name));
 614        return 0;
 615}
 616
 617static int mv(int argc, const char **argv)
 618{
 619        struct option options[] = {
 620                OPT_END()
 621        };
 622        struct remote *oldremote, *newremote;
 623        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT,
 624                old_remote_context = STRBUF_INIT;
 625        struct string_list remote_branches = STRING_LIST_INIT_NODUP;
 626        struct rename_info rename;
 627        int i, refspec_updated = 0;
 628
 629        if (argc != 3)
 630                usage_with_options(builtin_remote_rename_usage, options);
 631
 632        rename.old = argv[1];
 633        rename.new = argv[2];
 634        rename.remote_branches = &remote_branches;
 635
 636        oldremote = remote_get(rename.old);
 637        if (!oldremote)
 638                die(_("No such remote: %s"), rename.old);
 639
 640        if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
 641                return migrate_file(oldremote);
 642
 643        newremote = remote_get(rename.new);
 644        if (newremote && (newremote->url_nr > 1 || newremote->fetch_refspec_nr))
 645                die(_("remote %s already exists."), rename.new);
 646
 647        strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
 648        if (!valid_fetch_refspec(buf.buf))
 649                die(_("'%s' is not a valid remote name"), rename.new);
 650
 651        strbuf_reset(&buf);
 652        strbuf_addf(&buf, "remote.%s", rename.old);
 653        strbuf_addf(&buf2, "remote.%s", rename.new);
 654        if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 655                return error(_("Could not rename config section '%s' to '%s'"),
 656                                buf.buf, buf2.buf);
 657
 658        strbuf_reset(&buf);
 659        strbuf_addf(&buf, "remote.%s.fetch", rename.new);
 660        if (git_config_set_multivar(buf.buf, NULL, NULL, 1))
 661                return error(_("Could not remove config section '%s'"), buf.buf);
 662        strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old);
 663        for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 664                char *ptr;
 665
 666                strbuf_reset(&buf2);
 667                strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 668                ptr = strstr(buf2.buf, old_remote_context.buf);
 669                if (ptr) {
 670                        refspec_updated = 1;
 671                        strbuf_splice(&buf2,
 672                                      ptr-buf2.buf + strlen(":refs/remotes/"),
 673                                      strlen(rename.old), rename.new,
 674                                      strlen(rename.new));
 675                } else
 676                        warning(_("Not updating non-default fetch refspec\n"
 677                                  "\t%s\n"
 678                                  "\tPlease update the configuration manually if necessary."),
 679                                buf2.buf);
 680
 681                if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 682                        return error(_("Could not append '%s'"), buf.buf);
 683        }
 684
 685        read_branches();
 686        for (i = 0; i < branch_list.nr; i++) {
 687                struct string_list_item *item = branch_list.items + i;
 688                struct branch_info *info = item->util;
 689                if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 690                        strbuf_reset(&buf);
 691                        strbuf_addf(&buf, "branch.%s.remote", item->string);
 692                        if (git_config_set(buf.buf, rename.new)) {
 693                                return error(_("Could not set '%s'"), buf.buf);
 694                        }
 695                }
 696        }
 697
 698        if (!refspec_updated)
 699                return 0;
 700
 701        /*
 702         * First remove symrefs, then rename the rest, finally create
 703         * the new symrefs.
 704         */
 705        for_each_ref(read_remote_branches, &rename);
 706        for (i = 0; i < remote_branches.nr; i++) {
 707                struct string_list_item *item = remote_branches.items + i;
 708                int flag = 0;
 709                struct object_id oid;
 710
 711                read_ref_full(item->string, RESOLVE_REF_READING, oid.hash, &flag);
 712                if (!(flag & REF_ISSYMREF))
 713                        continue;
 714                if (delete_ref(item->string, NULL, REF_NODEREF))
 715                        die(_("deleting '%s' failed"), item->string);
 716        }
 717        for (i = 0; i < remote_branches.nr; i++) {
 718                struct string_list_item *item = remote_branches.items + i;
 719
 720                if (item->util)
 721                        continue;
 722                strbuf_reset(&buf);
 723                strbuf_addstr(&buf, item->string);
 724                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 725                                rename.new, strlen(rename.new));
 726                strbuf_reset(&buf2);
 727                strbuf_addf(&buf2, "remote: renamed %s to %s",
 728                                item->string, buf.buf);
 729                if (rename_ref(item->string, buf.buf, buf2.buf))
 730                        die(_("renaming '%s' failed"), item->string);
 731        }
 732        for (i = 0; i < remote_branches.nr; i++) {
 733                struct string_list_item *item = remote_branches.items + i;
 734
 735                if (!item->util)
 736                        continue;
 737                strbuf_reset(&buf);
 738                strbuf_addstr(&buf, item->string);
 739                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 740                                rename.new, strlen(rename.new));
 741                strbuf_reset(&buf2);
 742                strbuf_addstr(&buf2, item->util);
 743                strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
 744                                rename.new, strlen(rename.new));
 745                strbuf_reset(&buf3);
 746                strbuf_addf(&buf3, "remote: renamed %s to %s",
 747                                item->string, buf.buf);
 748                if (create_symref(buf.buf, buf2.buf, buf3.buf))
 749                        die(_("creating '%s' failed"), buf.buf);
 750        }
 751        return 0;
 752}
 753
 754static int rm(int argc, const char **argv)
 755{
 756        struct option options[] = {
 757                OPT_END()
 758        };
 759        struct remote *remote;
 760        struct strbuf buf = STRBUF_INIT;
 761        struct known_remotes known_remotes = { NULL, NULL };
 762        struct string_list branches = STRING_LIST_INIT_DUP;
 763        struct string_list skipped = STRING_LIST_INIT_DUP;
 764        struct branches_for_remote cb_data;
 765        int i, result;
 766
 767        memset(&cb_data, 0, sizeof(cb_data));
 768        cb_data.branches = &branches;
 769        cb_data.skipped = &skipped;
 770        cb_data.keep = &known_remotes;
 771
 772        if (argc != 2)
 773                usage_with_options(builtin_remote_rm_usage, options);
 774
 775        remote = remote_get(argv[1]);
 776        if (!remote)
 777                die(_("No such remote: %s"), argv[1]);
 778
 779        known_remotes.to_delete = remote;
 780        for_each_remote(add_known_remote, &known_remotes);
 781
 782        read_branches();
 783        for (i = 0; i < branch_list.nr; i++) {
 784                struct string_list_item *item = branch_list.items + i;
 785                struct branch_info *info = item->util;
 786                if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 787                        const char *keys[] = { "remote", "merge", NULL }, **k;
 788                        for (k = keys; *k; k++) {
 789                                strbuf_reset(&buf);
 790                                strbuf_addf(&buf, "branch.%s.%s",
 791                                                item->string, *k);
 792                                if (git_config_set(buf.buf, NULL)) {
 793                                        strbuf_release(&buf);
 794                                        return -1;
 795                                }
 796                        }
 797                }
 798        }
 799
 800        /*
 801         * We cannot just pass a function to for_each_ref() which deletes
 802         * the branches one by one, since for_each_ref() relies on cached
 803         * refs, which are invalidated when deleting a branch.
 804         */
 805        cb_data.remote = remote;
 806        result = for_each_ref(add_branch_for_removal, &cb_data);
 807        strbuf_release(&buf);
 808
 809        if (!result)
 810                result = delete_refs(&branches);
 811        string_list_clear(&branches, 0);
 812
 813        if (skipped.nr) {
 814                fprintf_ln(stderr,
 815                           Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 816                              "to delete it, use:",
 817                              "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 818                              "to delete them, use:",
 819                              skipped.nr));
 820                for (i = 0; i < skipped.nr; i++)
 821                        fprintf(stderr, "  git branch -d %s\n",
 822                                skipped.items[i].string);
 823        }
 824        string_list_clear(&skipped, 0);
 825
 826        if (!result) {
 827                strbuf_addf(&buf, "remote.%s", remote->name);
 828                if (git_config_rename_section(buf.buf, NULL) < 1)
 829                        return error(_("Could not remove config section '%s'"), buf.buf);
 830        }
 831
 832        return result;
 833}
 834
 835static void clear_push_info(void *util, const char *string)
 836{
 837        struct push_info *info = util;
 838        free(info->dest);
 839        free(info);
 840}
 841
 842static void free_remote_ref_states(struct ref_states *states)
 843{
 844        string_list_clear(&states->new, 0);
 845        string_list_clear(&states->stale, 1);
 846        string_list_clear(&states->tracked, 0);
 847        string_list_clear(&states->heads, 0);
 848        string_list_clear_func(&states->push, clear_push_info);
 849}
 850
 851static int append_ref_to_tracked_list(const char *refname,
 852        const struct object_id *oid, int flags, void *cb_data)
 853{
 854        struct ref_states *states = cb_data;
 855        struct refspec refspec;
 856
 857        if (flags & REF_ISSYMREF)
 858                return 0;
 859
 860        memset(&refspec, 0, sizeof(refspec));
 861        refspec.dst = (char *)refname;
 862        if (!remote_find_tracking(states->remote, &refspec))
 863                string_list_append(&states->tracked, abbrev_branch(refspec.src));
 864
 865        return 0;
 866}
 867
 868static int get_remote_ref_states(const char *name,
 869                                 struct ref_states *states,
 870                                 int query)
 871{
 872        struct transport *transport;
 873        const struct ref *remote_refs;
 874
 875        states->remote = remote_get(name);
 876        if (!states->remote)
 877                return error(_("No such remote: %s"), name);
 878
 879        read_branches();
 880
 881        if (query) {
 882                transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 883                        states->remote->url[0] : NULL);
 884                remote_refs = transport_get_remote_refs(transport);
 885                transport_disconnect(transport);
 886
 887                states->queried = 1;
 888                if (query & GET_REF_STATES)
 889                        get_ref_states(remote_refs, states);
 890                if (query & GET_HEAD_NAMES)
 891                        get_head_names(remote_refs, states);
 892                if (query & GET_PUSH_REF_STATES)
 893                        get_push_ref_states(remote_refs, states);
 894        } else {
 895                for_each_ref(append_ref_to_tracked_list, states);
 896                string_list_sort(&states->tracked);
 897                get_push_ref_states_noquery(states);
 898        }
 899
 900        return 0;
 901}
 902
 903struct show_info {
 904        struct string_list *list;
 905        struct ref_states *states;
 906        int width, width2;
 907        int any_rebase;
 908};
 909
 910static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 911{
 912        struct show_info *info = cb_data;
 913        int n = strlen(item->string);
 914        if (n > info->width)
 915                info->width = n;
 916        string_list_insert(info->list, item->string);
 917        return 0;
 918}
 919
 920static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 921{
 922        struct show_info *info = cb_data;
 923        struct ref_states *states = info->states;
 924        const char *name = item->string;
 925
 926        if (states->queried) {
 927                const char *fmt = "%s";
 928                const char *arg = "";
 929                if (string_list_has_string(&states->new, name)) {
 930                        fmt = _(" new (next fetch will store in remotes/%s)");
 931                        arg = states->remote->name;
 932                } else if (string_list_has_string(&states->tracked, name))
 933                        arg = _(" tracked");
 934                else if (string_list_has_string(&states->stale, name))
 935                        arg = _(" stale (use 'git remote prune' to remove)");
 936                else
 937                        arg = _(" ???");
 938                printf("    %-*s", info->width, name);
 939                printf(fmt, arg);
 940                printf("\n");
 941        } else
 942                printf("    %s\n", name);
 943
 944        return 0;
 945}
 946
 947static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 948{
 949        struct show_info *show_info = cb_data;
 950        struct ref_states *states = show_info->states;
 951        struct branch_info *branch_info = branch_item->util;
 952        struct string_list_item *item;
 953        int n;
 954
 955        if (!branch_info->merge.nr || !branch_info->remote_name ||
 956            strcmp(states->remote->name, branch_info->remote_name))
 957                return 0;
 958        if ((n = strlen(branch_item->string)) > show_info->width)
 959                show_info->width = n;
 960        if (branch_info->rebase)
 961                show_info->any_rebase = 1;
 962
 963        item = string_list_insert(show_info->list, branch_item->string);
 964        item->util = branch_info;
 965
 966        return 0;
 967}
 968
 969static int show_local_info_item(struct string_list_item *item, void *cb_data)
 970{
 971        struct show_info *show_info = cb_data;
 972        struct branch_info *branch_info = item->util;
 973        struct string_list *merge = &branch_info->merge;
 974        const char *also;
 975        int i;
 976
 977        if (branch_info->rebase && branch_info->merge.nr > 1) {
 978                error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"),
 979                        item->string);
 980                return 0;
 981        }
 982
 983        printf("    %-*s ", show_info->width, item->string);
 984        if (branch_info->rebase) {
 985                printf_ln(_(branch_info->rebase == INTERACTIVE_REBASE ?
 986                        "rebases interactively onto remote %s" :
 987                        "rebases onto remote %s"), merge->items[0].string);
 988                return 0;
 989        } else if (show_info->any_rebase) {
 990                printf_ln(_(" merges with remote %s"), merge->items[0].string);
 991                also = _("    and with remote");
 992        } else {
 993                printf_ln(_("merges with remote %s"), merge->items[0].string);
 994                also = _("   and with remote");
 995        }
 996        for (i = 1; i < merge->nr; i++)
 997                printf("    %-*s %s %s\n", show_info->width, "", also,
 998                       merge->items[i].string);
 999
1000        return 0;
1001}
1002
1003static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
1004{
1005        struct show_info *show_info = cb_data;
1006        struct push_info *push_info = push_item->util;
1007        struct string_list_item *item;
1008        int n;
1009        if ((n = strlen(push_item->string)) > show_info->width)
1010                show_info->width = n;
1011        if ((n = strlen(push_info->dest)) > show_info->width2)
1012                show_info->width2 = n;
1013        item = string_list_append(show_info->list, push_item->string);
1014        item->util = push_item->util;
1015        return 0;
1016}
1017
1018/*
1019 * Sorting comparison for a string list that has push_info
1020 * structs in its util field
1021 */
1022static int cmp_string_with_push(const void *va, const void *vb)
1023{
1024        const struct string_list_item *a = va;
1025        const struct string_list_item *b = vb;
1026        const struct push_info *a_push = a->util;
1027        const struct push_info *b_push = b->util;
1028        int cmp = strcmp(a->string, b->string);
1029        return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1030}
1031
1032static int show_push_info_item(struct string_list_item *item, void *cb_data)
1033{
1034        struct show_info *show_info = cb_data;
1035        struct push_info *push_info = item->util;
1036        const char *src = item->string, *status = NULL;
1037
1038        switch (push_info->status) {
1039        case PUSH_STATUS_CREATE:
1040                status = _("create");
1041                break;
1042        case PUSH_STATUS_DELETE:
1043                status = _("delete");
1044                src = _("(none)");
1045                break;
1046        case PUSH_STATUS_UPTODATE:
1047                status = _("up to date");
1048                break;
1049        case PUSH_STATUS_FASTFORWARD:
1050                status = _("fast-forwardable");
1051                break;
1052        case PUSH_STATUS_OUTOFDATE:
1053                status = _("local out of date");
1054                break;
1055        case PUSH_STATUS_NOTQUERIED:
1056                break;
1057        }
1058        if (status) {
1059                if (push_info->forced)
1060                        printf_ln(_("    %-*s forces to %-*s (%s)"), show_info->width, src,
1061                               show_info->width2, push_info->dest, status);
1062                else
1063                        printf_ln(_("    %-*s pushes to %-*s (%s)"), show_info->width, src,
1064                               show_info->width2, push_info->dest, status);
1065        } else {
1066                if (push_info->forced)
1067                        printf_ln(_("    %-*s forces to %s"), show_info->width, src,
1068                               push_info->dest);
1069                else
1070                        printf_ln(_("    %-*s pushes to %s"), show_info->width, src,
1071                               push_info->dest);
1072        }
1073        return 0;
1074}
1075
1076static int get_one_entry(struct remote *remote, void *priv)
1077{
1078        struct string_list *list = priv;
1079        struct strbuf url_buf = STRBUF_INIT;
1080        const char **url;
1081        int i, url_nr;
1082
1083        if (remote->url_nr > 0) {
1084                strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1085                string_list_append(list, remote->name)->util =
1086                                strbuf_detach(&url_buf, NULL);
1087        } else
1088                string_list_append(list, remote->name)->util = NULL;
1089        if (remote->pushurl_nr) {
1090                url = remote->pushurl;
1091                url_nr = remote->pushurl_nr;
1092        } else {
1093                url = remote->url;
1094                url_nr = remote->url_nr;
1095        }
1096        for (i = 0; i < url_nr; i++)
1097        {
1098                strbuf_addf(&url_buf, "%s (push)", url[i]);
1099                string_list_append(list, remote->name)->util =
1100                                strbuf_detach(&url_buf, NULL);
1101        }
1102
1103        return 0;
1104}
1105
1106static int show_all(void)
1107{
1108        struct string_list list = STRING_LIST_INIT_NODUP;
1109        int result;
1110
1111        list.strdup_strings = 1;
1112        result = for_each_remote(get_one_entry, &list);
1113
1114        if (!result) {
1115                int i;
1116
1117                string_list_sort(&list);
1118                for (i = 0; i < list.nr; i++) {
1119                        struct string_list_item *item = list.items + i;
1120                        if (verbose)
1121                                printf("%s\t%s\n", item->string,
1122                                        item->util ? (const char *)item->util : "");
1123                        else {
1124                                if (i && !strcmp((item - 1)->string, item->string))
1125                                        continue;
1126                                printf("%s\n", item->string);
1127                        }
1128                }
1129        }
1130        string_list_clear(&list, 1);
1131        return result;
1132}
1133
1134static int show(int argc, const char **argv)
1135{
1136        int no_query = 0, result = 0, query_flag = 0;
1137        struct option options[] = {
1138                OPT_BOOL('n', NULL, &no_query, N_("do not query remotes")),
1139                OPT_END()
1140        };
1141        struct ref_states states;
1142        struct string_list info_list = STRING_LIST_INIT_NODUP;
1143        struct show_info info;
1144
1145        argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1146                             0);
1147
1148        if (argc < 1)
1149                return show_all();
1150
1151        if (!no_query)
1152                query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1153
1154        memset(&states, 0, sizeof(states));
1155        memset(&info, 0, sizeof(info));
1156        info.states = &states;
1157        info.list = &info_list;
1158        for (; argc; argc--, argv++) {
1159                int i;
1160                const char **url;
1161                int url_nr;
1162
1163                get_remote_ref_states(*argv, &states, query_flag);
1164
1165                printf_ln(_("* remote %s"), *argv);
1166                printf_ln(_("  Fetch URL: %s"), states.remote->url_nr > 0 ?
1167                       states.remote->url[0] : _("(no URL)"));
1168                if (states.remote->pushurl_nr) {
1169                        url = states.remote->pushurl;
1170                        url_nr = states.remote->pushurl_nr;
1171                } else {
1172                        url = states.remote->url;
1173                        url_nr = states.remote->url_nr;
1174                }
1175                for (i = 0; i < url_nr; i++)
1176                        printf_ln(_("  Push  URL: %s"), url[i]);
1177                if (!i)
1178                        printf_ln(_("  Push  URL: %s"), "(no URL)");
1179                if (no_query)
1180                        printf_ln(_("  HEAD branch: %s"), "(not queried)");
1181                else if (!states.heads.nr)
1182                        printf_ln(_("  HEAD branch: %s"), "(unknown)");
1183                else if (states.heads.nr == 1)
1184                        printf_ln(_("  HEAD branch: %s"), states.heads.items[0].string);
1185                else {
1186                        printf(_("  HEAD branch (remote HEAD is ambiguous,"
1187                                 " may be one of the following):\n"));
1188                        for (i = 0; i < states.heads.nr; i++)
1189                                printf("    %s\n", states.heads.items[i].string);
1190                }
1191
1192                /* remote branch info */
1193                info.width = 0;
1194                for_each_string_list(&states.new, add_remote_to_show_info, &info);
1195                for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1196                for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1197                if (info.list->nr)
1198                        printf_ln(Q_("  Remote branch:%s",
1199                                     "  Remote branches:%s",
1200                                     info.list->nr),
1201                                  no_query ? _(" (status not queried)") : "");
1202                for_each_string_list(info.list, show_remote_info_item, &info);
1203                string_list_clear(info.list, 0);
1204
1205                /* git pull info */
1206                info.width = 0;
1207                info.any_rebase = 0;
1208                for_each_string_list(&branch_list, add_local_to_show_info, &info);
1209                if (info.list->nr)
1210                        printf_ln(Q_("  Local branch configured for 'git pull':",
1211                                     "  Local branches configured for 'git pull':",
1212                                     info.list->nr));
1213                for_each_string_list(info.list, show_local_info_item, &info);
1214                string_list_clear(info.list, 0);
1215
1216                /* git push info */
1217                if (states.remote->mirror)
1218                        printf_ln(_("  Local refs will be mirrored by 'git push'"));
1219
1220                info.width = info.width2 = 0;
1221                for_each_string_list(&states.push, add_push_to_show_info, &info);
1222                qsort(info.list->items, info.list->nr,
1223                        sizeof(*info.list->items), cmp_string_with_push);
1224                if (info.list->nr)
1225                        printf_ln(Q_("  Local ref configured for 'git push'%s:",
1226                                     "  Local refs configured for 'git push'%s:",
1227                                     info.list->nr),
1228                                  no_query ? _(" (status not queried)") : "");
1229                for_each_string_list(info.list, show_push_info_item, &info);
1230                string_list_clear(info.list, 0);
1231
1232                free_remote_ref_states(&states);
1233        }
1234
1235        return result;
1236}
1237
1238static int set_head(int argc, const char **argv)
1239{
1240        int i, opt_a = 0, opt_d = 0, result = 0;
1241        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1242        char *head_name = NULL;
1243
1244        struct option options[] = {
1245                OPT_BOOL('a', "auto", &opt_a,
1246                         N_("set refs/remotes/<name>/HEAD according to remote")),
1247                OPT_BOOL('d', "delete", &opt_d,
1248                         N_("delete refs/remotes/<name>/HEAD")),
1249                OPT_END()
1250        };
1251        argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1252                             0);
1253        if (argc)
1254                strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1255
1256        if (!opt_a && !opt_d && argc == 2) {
1257                head_name = xstrdup(argv[1]);
1258        } else if (opt_a && !opt_d && argc == 1) {
1259                struct ref_states states;
1260                memset(&states, 0, sizeof(states));
1261                get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1262                if (!states.heads.nr)
1263                        result |= error(_("Cannot determine remote HEAD"));
1264                else if (states.heads.nr > 1) {
1265                        result |= error(_("Multiple remote HEAD branches. "
1266                                          "Please choose one explicitly with:"));
1267                        for (i = 0; i < states.heads.nr; i++)
1268                                fprintf(stderr, "  git remote set-head %s %s\n",
1269                                        argv[0], states.heads.items[i].string);
1270                } else
1271                        head_name = xstrdup(states.heads.items[0].string);
1272                free_remote_ref_states(&states);
1273        } else if (opt_d && !opt_a && argc == 1) {
1274                if (delete_ref(buf.buf, NULL, REF_NODEREF))
1275                        result |= error(_("Could not delete %s"), buf.buf);
1276        } else
1277                usage_with_options(builtin_remote_sethead_usage, options);
1278
1279        if (head_name) {
1280                strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1281                /* make sure it's valid */
1282                if (!ref_exists(buf2.buf))
1283                        result |= error(_("Not a valid ref: %s"), buf2.buf);
1284                else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1285                        result |= error(_("Could not setup %s"), buf.buf);
1286                if (opt_a)
1287                        printf("%s/HEAD set to %s\n", argv[0], head_name);
1288                free(head_name);
1289        }
1290
1291        strbuf_release(&buf);
1292        strbuf_release(&buf2);
1293        return result;
1294}
1295
1296static int prune_remote(const char *remote, int dry_run)
1297{
1298        int result = 0;
1299        struct ref_states states;
1300        struct string_list refs_to_prune = STRING_LIST_INIT_NODUP;
1301        struct string_list_item *item;
1302        const char *dangling_msg = dry_run
1303                ? _(" %s will become dangling!")
1304                : _(" %s has become dangling!");
1305
1306        memset(&states, 0, sizeof(states));
1307        get_remote_ref_states(remote, &states, GET_REF_STATES);
1308
1309        if (!states.stale.nr) {
1310                free_remote_ref_states(&states);
1311                return 0;
1312        }
1313
1314        printf_ln(_("Pruning %s"), remote);
1315        printf_ln(_("URL: %s"),
1316                  states.remote->url_nr
1317                  ? states.remote->url[0]
1318                  : _("(no URL)"));
1319
1320        for_each_string_list_item(item, &states.stale)
1321                string_list_append(&refs_to_prune, item->util);
1322        string_list_sort(&refs_to_prune);
1323
1324        if (!dry_run)
1325                result |= delete_refs(&refs_to_prune);
1326
1327        for_each_string_list_item(item, &states.stale) {
1328                const char *refname = item->util;
1329
1330                if (dry_run)
1331                        printf_ln(_(" * [would prune] %s"),
1332                               abbrev_ref(refname, "refs/remotes/"));
1333                else
1334                        printf_ln(_(" * [pruned] %s"),
1335                               abbrev_ref(refname, "refs/remotes/"));
1336        }
1337
1338        warn_dangling_symrefs(stdout, dangling_msg, &refs_to_prune);
1339
1340        string_list_clear(&refs_to_prune, 0);
1341        free_remote_ref_states(&states);
1342        return result;
1343}
1344
1345static int prune(int argc, const char **argv)
1346{
1347        int dry_run = 0, result = 0;
1348        struct option options[] = {
1349                OPT__DRY_RUN(&dry_run, N_("dry run")),
1350                OPT_END()
1351        };
1352
1353        argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1354                             0);
1355
1356        if (argc < 1)
1357                usage_with_options(builtin_remote_prune_usage, options);
1358
1359        for (; argc; argc--, argv++)
1360                result |= prune_remote(*argv, dry_run);
1361
1362        return result;
1363}
1364
1365static int get_remote_default(const char *key, const char *value, void *priv)
1366{
1367        if (strcmp(key, "remotes.default") == 0) {
1368                int *found = priv;
1369                *found = 1;
1370        }
1371        return 0;
1372}
1373
1374static int update(int argc, const char **argv)
1375{
1376        int i, prune = -1;
1377        struct option options[] = {
1378                OPT_BOOL('p', "prune", &prune,
1379                         N_("prune remotes after fetching")),
1380                OPT_END()
1381        };
1382        struct argv_array fetch_argv = ARGV_ARRAY_INIT;
1383        int default_defined = 0;
1384        int retval;
1385
1386        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1387                             PARSE_OPT_KEEP_ARGV0);
1388
1389        argv_array_push(&fetch_argv, "fetch");
1390
1391        if (prune != -1)
1392                argv_array_push(&fetch_argv, prune ? "--prune" : "--no-prune");
1393        if (verbose)
1394                argv_array_push(&fetch_argv, "-v");
1395        argv_array_push(&fetch_argv, "--multiple");
1396        if (argc < 2)
1397                argv_array_push(&fetch_argv, "default");
1398        for (i = 1; i < argc; i++)
1399                argv_array_push(&fetch_argv, argv[i]);
1400
1401        if (strcmp(fetch_argv.argv[fetch_argv.argc-1], "default") == 0) {
1402                git_config(get_remote_default, &default_defined);
1403                if (!default_defined) {
1404                        argv_array_pop(&fetch_argv);
1405                        argv_array_push(&fetch_argv, "--all");
1406                }
1407        }
1408
1409        retval = run_command_v_opt(fetch_argv.argv, RUN_GIT_CMD);
1410        argv_array_clear(&fetch_argv);
1411        return retval;
1412}
1413
1414static int remove_all_fetch_refspecs(const char *remote, const char *key)
1415{
1416        return git_config_set_multivar(key, NULL, NULL, 1);
1417}
1418
1419static int add_branches(struct remote *remote, const char **branches,
1420                        const char *key)
1421{
1422        const char *remotename = remote->name;
1423        int mirror = remote->mirror;
1424        struct strbuf refspec = STRBUF_INIT;
1425
1426        for (; *branches; branches++)
1427                if (add_branch(key, *branches, remotename, mirror, &refspec)) {
1428                        strbuf_release(&refspec);
1429                        return 1;
1430                }
1431
1432        strbuf_release(&refspec);
1433        return 0;
1434}
1435
1436static int set_remote_branches(const char *remotename, const char **branches,
1437                                int add_mode)
1438{
1439        struct strbuf key = STRBUF_INIT;
1440        struct remote *remote;
1441
1442        strbuf_addf(&key, "remote.%s.fetch", remotename);
1443
1444        if (!remote_is_configured(remotename))
1445                die(_("No such remote '%s'"), remotename);
1446        remote = remote_get(remotename);
1447
1448        if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
1449                strbuf_release(&key);
1450                return 1;
1451        }
1452        if (add_branches(remote, branches, key.buf)) {
1453                strbuf_release(&key);
1454                return 1;
1455        }
1456
1457        strbuf_release(&key);
1458        return 0;
1459}
1460
1461static int set_branches(int argc, const char **argv)
1462{
1463        int add_mode = 0;
1464        struct option options[] = {
1465                OPT_BOOL('\0', "add", &add_mode, N_("add branch")),
1466                OPT_END()
1467        };
1468
1469        argc = parse_options(argc, argv, NULL, options,
1470                             builtin_remote_setbranches_usage, 0);
1471        if (argc == 0) {
1472                error(_("no remote specified"));
1473                usage_with_options(builtin_remote_setbranches_usage, options);
1474        }
1475        argv[argc] = NULL;
1476
1477        return set_remote_branches(argv[0], argv + 1, add_mode);
1478}
1479
1480static int get_url(int argc, const char **argv)
1481{
1482        int i, push_mode = 0, all_mode = 0;
1483        const char *remotename = NULL;
1484        struct remote *remote;
1485        const char **url;
1486        int url_nr;
1487        struct option options[] = {
1488                OPT_BOOL('\0', "push", &push_mode,
1489                         N_("query push URLs rather than fetch URLs")),
1490                OPT_BOOL('\0', "all", &all_mode,
1491                         N_("return all URLs")),
1492                OPT_END()
1493        };
1494        argc = parse_options(argc, argv, NULL, options, builtin_remote_geturl_usage, 0);
1495
1496        if (argc != 1)
1497                usage_with_options(builtin_remote_geturl_usage, options);
1498
1499        remotename = argv[0];
1500
1501        if (!remote_is_configured(remotename))
1502                die(_("No such remote '%s'"), remotename);
1503        remote = remote_get(remotename);
1504
1505        url_nr = 0;
1506        if (push_mode) {
1507                url = remote->pushurl;
1508                url_nr = remote->pushurl_nr;
1509        }
1510        /* else fetch mode */
1511
1512        /* Use the fetch URL when no push URLs were found or requested. */
1513        if (!url_nr) {
1514                url = remote->url;
1515                url_nr = remote->url_nr;
1516        }
1517
1518        if (!url_nr)
1519                die(_("no URLs configured for remote '%s'"), remotename);
1520
1521        if (all_mode) {
1522                for (i = 0; i < url_nr; i++)
1523                        printf_ln("%s", url[i]);
1524        } else {
1525                printf_ln("%s", *url);
1526        }
1527
1528        return 0;
1529}
1530
1531static int set_url(int argc, const char **argv)
1532{
1533        int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1534        int matches = 0, negative_matches = 0;
1535        const char *remotename = NULL;
1536        const char *newurl = NULL;
1537        const char *oldurl = NULL;
1538        struct remote *remote;
1539        regex_t old_regex;
1540        const char **urlset;
1541        int urlset_nr;
1542        struct strbuf name_buf = STRBUF_INIT;
1543        struct option options[] = {
1544                OPT_BOOL('\0', "push", &push_mode,
1545                         N_("manipulate push URLs")),
1546                OPT_BOOL('\0', "add", &add_mode,
1547                         N_("add URL")),
1548                OPT_BOOL('\0', "delete", &delete_mode,
1549                            N_("delete URLs")),
1550                OPT_END()
1551        };
1552        argc = parse_options(argc, argv, NULL, options, builtin_remote_seturl_usage,
1553                             PARSE_OPT_KEEP_ARGV0);
1554
1555        if (add_mode && delete_mode)
1556                die(_("--add --delete doesn't make sense"));
1557
1558        if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1559                usage_with_options(builtin_remote_seturl_usage, options);
1560
1561        remotename = argv[1];
1562        newurl = argv[2];
1563        if (argc > 3)
1564                oldurl = argv[3];
1565
1566        if (delete_mode)
1567                oldurl = newurl;
1568
1569        if (!remote_is_configured(remotename))
1570                die(_("No such remote '%s'"), remotename);
1571        remote = remote_get(remotename);
1572
1573        if (push_mode) {
1574                strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1575                urlset = remote->pushurl;
1576                urlset_nr = remote->pushurl_nr;
1577        } else {
1578                strbuf_addf(&name_buf, "remote.%s.url", remotename);
1579                urlset = remote->url;
1580                urlset_nr = remote->url_nr;
1581        }
1582
1583        /* Special cases that add new entry. */
1584        if ((!oldurl && !delete_mode) || add_mode) {
1585                if (add_mode)
1586                        git_config_set_multivar(name_buf.buf, newurl,
1587                                "^$", 0);
1588                else
1589                        git_config_set(name_buf.buf, newurl);
1590                strbuf_release(&name_buf);
1591                return 0;
1592        }
1593
1594        /* Old URL specified. Demand that one matches. */
1595        if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1596                die(_("Invalid old URL pattern: %s"), oldurl);
1597
1598        for (i = 0; i < urlset_nr; i++)
1599                if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1600                        matches++;
1601                else
1602                        negative_matches++;
1603        if (!delete_mode && !matches)
1604                die(_("No such URL found: %s"), oldurl);
1605        if (delete_mode && !negative_matches && !push_mode)
1606                die(_("Will not delete all non-push URLs"));
1607
1608        regfree(&old_regex);
1609
1610        if (!delete_mode)
1611                git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1612        else
1613                git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1614        return 0;
1615}
1616
1617int cmd_remote(int argc, const char **argv, const char *prefix)
1618{
1619        struct option options[] = {
1620                OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")),
1621                OPT_END()
1622        };
1623        int result;
1624
1625        argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1626                PARSE_OPT_STOP_AT_NON_OPTION);
1627
1628        if (argc < 1)
1629                result = show_all();
1630        else if (!strcmp(argv[0], "add"))
1631                result = add(argc, argv);
1632        else if (!strcmp(argv[0], "rename"))
1633                result = mv(argc, argv);
1634        else if (!strcmp(argv[0], "rm") || !strcmp(argv[0], "remove"))
1635                result = rm(argc, argv);
1636        else if (!strcmp(argv[0], "set-head"))
1637                result = set_head(argc, argv);
1638        else if (!strcmp(argv[0], "set-branches"))
1639                result = set_branches(argc, argv);
1640        else if (!strcmp(argv[0], "get-url"))
1641                result = get_url(argc, argv);
1642        else if (!strcmp(argv[0], "set-url"))
1643                result = set_url(argc, argv);
1644        else if (!strcmp(argv[0], "show"))
1645                result = show(argc, argv);
1646        else if (!strcmp(argv[0], "prune"))
1647                result = prune(argc, argv);
1648        else if (!strcmp(argv[0], "update"))
1649                result = update(argc, argv);
1650        else {
1651                error(_("Unknown subcommand: %s"), argv[0]);
1652                usage_with_options(builtin_remote_usage, options);
1653        }
1654
1655        return result ? 1 : 0;
1656}