builtin / remote.con commit commit: allow lookup_commit_graft to handle arbitrary repositories (b9dbddf)
   1#include "builtin.h"
   2#include "config.h"
   3#include "parse-options.h"
   4#include "transport.h"
   5#include "remote.h"
   6#include "string-list.h"
   7#include "strbuf.h"
   8#include "run-command.h"
   9#include "refs.h"
  10#include "object-store.h"
  11#include "argv-array.h"
  12
  13static const char * const builtin_remote_usage[] = {
  14        N_("git remote [-v | --verbose]"),
  15        N_("git remote add [-t <branch>] [-m <master>] [-f] [--tags | --no-tags] [--mirror=<fetch|push>] <name> <url>"),
  16        N_("git remote rename <old> <new>"),
  17        N_("git remote remove <name>"),
  18        N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
  19        N_("git remote [-v | --verbose] show [-n] <name>"),
  20        N_("git remote prune [-n | --dry-run] <name>"),
  21        N_("git remote [-v | --verbose] update [-p | --prune] [(<group> | <remote>)...]"),
  22        N_("git remote set-branches [--add] <name> <branch>..."),
  23        N_("git remote get-url [--push] [--all] <name>"),
  24        N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
  25        N_("git remote set-url --add <name> <newurl>"),
  26        N_("git remote set-url --delete <name> <url>"),
  27        NULL
  28};
  29
  30static const char * const builtin_remote_add_usage[] = {
  31        N_("git remote add [<options>] <name> <url>"),
  32        NULL
  33};
  34
  35static const char * const builtin_remote_rename_usage[] = {
  36        N_("git remote rename <old> <new>"),
  37        NULL
  38};
  39
  40static const char * const builtin_remote_rm_usage[] = {
  41        N_("git remote remove <name>"),
  42        NULL
  43};
  44
  45static const char * const builtin_remote_sethead_usage[] = {
  46        N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
  47        NULL
  48};
  49
  50static const char * const builtin_remote_setbranches_usage[] = {
  51        N_("git remote set-branches <name> <branch>..."),
  52        N_("git remote set-branches --add <name> <branch>..."),
  53        NULL
  54};
  55
  56static const char * const builtin_remote_show_usage[] = {
  57        N_("git remote show [<options>] <name>"),
  58        NULL
  59};
  60
  61static const char * const builtin_remote_prune_usage[] = {
  62        N_("git remote prune [<options>] <name>"),
  63        NULL
  64};
  65
  66static const char * const builtin_remote_update_usage[] = {
  67        N_("git remote update [<options>] [<group> | <remote>]..."),
  68        NULL
  69};
  70
  71static const char * const builtin_remote_geturl_usage[] = {
  72        N_("git remote get-url [--push] [--all] <name>"),
  73        NULL
  74};
  75
  76static const char * const builtin_remote_seturl_usage[] = {
  77        N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
  78        N_("git remote set-url --add <name> <newurl>"),
  79        N_("git remote set-url --delete <name> <url>"),
  80        NULL
  81};
  82
  83#define GET_REF_STATES (1<<0)
  84#define GET_HEAD_NAMES (1<<1)
  85#define GET_PUSH_REF_STATES (1<<2)
  86
  87static int verbose;
  88
  89static int fetch_remote(const char *name)
  90{
  91        const char *argv[] = { "fetch", name, NULL, NULL };
  92        if (verbose) {
  93                argv[1] = "-v";
  94                argv[2] = name;
  95        }
  96        printf_ln(_("Updating %s"), name);
  97        if (run_command_v_opt(argv, RUN_GIT_CMD))
  98                return error(_("Could not fetch %s"), name);
  99        return 0;
 100}
 101
 102enum {
 103        TAGS_UNSET = 0,
 104        TAGS_DEFAULT = 1,
 105        TAGS_SET = 2
 106};
 107
 108#define MIRROR_NONE 0
 109#define MIRROR_FETCH 1
 110#define MIRROR_PUSH 2
 111#define MIRROR_BOTH (MIRROR_FETCH|MIRROR_PUSH)
 112
 113static void add_branch(const char *key, const char *branchname,
 114                       const char *remotename, int mirror, struct strbuf *tmp)
 115{
 116        strbuf_reset(tmp);
 117        strbuf_addch(tmp, '+');
 118        if (mirror)
 119                strbuf_addf(tmp, "refs/%s:refs/%s",
 120                                branchname, branchname);
 121        else
 122                strbuf_addf(tmp, "refs/heads/%s:refs/remotes/%s/%s",
 123                                branchname, remotename, branchname);
 124        git_config_set_multivar(key, tmp->buf, "^$", 0);
 125}
 126
 127static const char mirror_advice[] =
 128N_("--mirror is dangerous and deprecated; please\n"
 129   "\t use --mirror=fetch or --mirror=push instead");
 130
 131static int parse_mirror_opt(const struct option *opt, const char *arg, int not)
 132{
 133        unsigned *mirror = opt->value;
 134        if (not)
 135                *mirror = MIRROR_NONE;
 136        else if (!arg) {
 137                warning("%s", _(mirror_advice));
 138                *mirror = MIRROR_BOTH;
 139        }
 140        else if (!strcmp(arg, "fetch"))
 141                *mirror = MIRROR_FETCH;
 142        else if (!strcmp(arg, "push"))
 143                *mirror = MIRROR_PUSH;
 144        else
 145                return error(_("unknown mirror argument: %s"), arg);
 146        return 0;
 147}
 148
 149static int add(int argc, const char **argv)
 150{
 151        int fetch = 0, fetch_tags = TAGS_DEFAULT;
 152        unsigned mirror = MIRROR_NONE;
 153        struct string_list track = STRING_LIST_INIT_NODUP;
 154        const char *master = NULL;
 155        struct remote *remote;
 156        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
 157        const char *name, *url;
 158        int i;
 159
 160        struct option options[] = {
 161                OPT_BOOL('f', "fetch", &fetch, N_("fetch the remote branches")),
 162                OPT_SET_INT(0, "tags", &fetch_tags,
 163                            N_("import all tags and associated objects when fetching"),
 164                            TAGS_SET),
 165                OPT_SET_INT(0, NULL, &fetch_tags,
 166                            N_("or do not fetch any tag at all (--no-tags)"), TAGS_UNSET),
 167                OPT_STRING_LIST('t', "track", &track, N_("branch"),
 168                                N_("branch(es) to track")),
 169                OPT_STRING('m', "master", &master, N_("branch"), N_("master branch")),
 170                { OPTION_CALLBACK, 0, "mirror", &mirror, N_("push|fetch"),
 171                        N_("set up remote as a mirror to push to or fetch from"),
 172                        PARSE_OPT_OPTARG | PARSE_OPT_COMP_ARG, parse_mirror_opt },
 173                OPT_END()
 174        };
 175
 176        argc = parse_options(argc, argv, NULL, options, builtin_remote_add_usage,
 177                             0);
 178
 179        if (argc != 2)
 180                usage_with_options(builtin_remote_add_usage, options);
 181
 182        if (mirror && master)
 183                die(_("specifying a master branch makes no sense with --mirror"));
 184        if (mirror && !(mirror & MIRROR_FETCH) && track.nr)
 185                die(_("specifying branches to track makes sense only with fetch mirrors"));
 186
 187        name = argv[0];
 188        url = argv[1];
 189
 190        remote = remote_get(name);
 191        if (remote_is_configured(remote, 1))
 192                die(_("remote %s already exists."), name);
 193
 194        strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
 195        if (!valid_fetch_refspec(buf2.buf))
 196                die(_("'%s' is not a valid remote name"), name);
 197
 198        strbuf_addf(&buf, "remote.%s.url", name);
 199        git_config_set(buf.buf, url);
 200
 201        if (!mirror || mirror & MIRROR_FETCH) {
 202                strbuf_reset(&buf);
 203                strbuf_addf(&buf, "remote.%s.fetch", name);
 204                if (track.nr == 0)
 205                        string_list_append(&track, "*");
 206                for (i = 0; i < track.nr; i++) {
 207                        add_branch(buf.buf, track.items[i].string,
 208                                   name, mirror, &buf2);
 209                }
 210        }
 211
 212        if (mirror & MIRROR_PUSH) {
 213                strbuf_reset(&buf);
 214                strbuf_addf(&buf, "remote.%s.mirror", name);
 215                git_config_set(buf.buf, "true");
 216        }
 217
 218        if (fetch_tags != TAGS_DEFAULT) {
 219                strbuf_reset(&buf);
 220                strbuf_addf(&buf, "remote.%s.tagopt", name);
 221                git_config_set(buf.buf,
 222                               fetch_tags == TAGS_SET ? "--tags" : "--no-tags");
 223        }
 224
 225        if (fetch && fetch_remote(name))
 226                return 1;
 227
 228        if (master) {
 229                strbuf_reset(&buf);
 230                strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
 231
 232                strbuf_reset(&buf2);
 233                strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
 234
 235                if (create_symref(buf.buf, buf2.buf, "remote add"))
 236                        return error(_("Could not setup master '%s'"), master);
 237        }
 238
 239        strbuf_release(&buf);
 240        strbuf_release(&buf2);
 241        string_list_clear(&track, 0);
 242
 243        return 0;
 244}
 245
 246struct branch_info {
 247        char *remote_name;
 248        struct string_list merge;
 249        enum { NO_REBASE, NORMAL_REBASE, INTERACTIVE_REBASE } rebase;
 250};
 251
 252static struct string_list branch_list = STRING_LIST_INIT_NODUP;
 253
 254static const char *abbrev_ref(const char *name, const char *prefix)
 255{
 256        skip_prefix(name, prefix, &name);
 257        return name;
 258}
 259#define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 260
 261static int config_read_branches(const char *key, const char *value, void *cb)
 262{
 263        if (starts_with(key, "branch.")) {
 264                const char *orig_key = key;
 265                char *name;
 266                struct string_list_item *item;
 267                struct branch_info *info;
 268                enum { REMOTE, MERGE, REBASE } type;
 269                size_t key_len;
 270
 271                key += 7;
 272                if (strip_suffix(key, ".remote", &key_len)) {
 273                        name = xmemdupz(key, key_len);
 274                        type = REMOTE;
 275                } else if (strip_suffix(key, ".merge", &key_len)) {
 276                        name = xmemdupz(key, key_len);
 277                        type = MERGE;
 278                } else if (strip_suffix(key, ".rebase", &key_len)) {
 279                        name = xmemdupz(key, key_len);
 280                        type = REBASE;
 281                } else
 282                        return 0;
 283
 284                item = string_list_insert(&branch_list, name);
 285
 286                if (!item->util)
 287                        item->util = xcalloc(1, sizeof(struct branch_info));
 288                info = item->util;
 289                if (type == REMOTE) {
 290                        if (info->remote_name)
 291                                warning(_("more than one %s"), orig_key);
 292                        info->remote_name = xstrdup(value);
 293                } else if (type == MERGE) {
 294                        char *space = strchr(value, ' ');
 295                        value = abbrev_branch(value);
 296                        while (space) {
 297                                char *merge;
 298                                merge = xstrndup(value, space - value);
 299                                string_list_append(&info->merge, merge);
 300                                value = abbrev_branch(space + 1);
 301                                space = strchr(value, ' ');
 302                        }
 303                        string_list_append(&info->merge, xstrdup(value));
 304                } else {
 305                        int v = git_parse_maybe_bool(value);
 306                        if (v >= 0)
 307                                info->rebase = v;
 308                        else if (!strcmp(value, "preserve"))
 309                                info->rebase = NORMAL_REBASE;
 310                        else if (!strcmp(value, "interactive"))
 311                                info->rebase = INTERACTIVE_REBASE;
 312                }
 313        }
 314        return 0;
 315}
 316
 317static void read_branches(void)
 318{
 319        if (branch_list.nr)
 320                return;
 321        git_config(config_read_branches, NULL);
 322}
 323
 324struct ref_states {
 325        struct remote *remote;
 326        struct string_list new_refs, stale, tracked, heads, push;
 327        int queried;
 328};
 329
 330static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 331{
 332        struct ref *fetch_map = NULL, **tail = &fetch_map;
 333        struct ref *ref, *stale_refs;
 334        int i;
 335
 336        for (i = 0; i < states->remote->fetch_refspec_nr; i++)
 337                if (get_fetch_map(remote_refs, states->remote->fetch + i, &tail, 1))
 338                        die(_("Could not get fetch map for refspec %s"),
 339                                states->remote->fetch_refspec[i]);
 340
 341        states->new_refs.strdup_strings = 1;
 342        states->tracked.strdup_strings = 1;
 343        states->stale.strdup_strings = 1;
 344        for (ref = fetch_map; ref; ref = ref->next) {
 345                if (!ref->peer_ref || !ref_exists(ref->peer_ref->name))
 346                        string_list_append(&states->new_refs, abbrev_branch(ref->name));
 347                else
 348                        string_list_append(&states->tracked, abbrev_branch(ref->name));
 349        }
 350        stale_refs = get_stale_heads(states->remote->fetch,
 351                                     states->remote->fetch_refspec_nr, fetch_map);
 352        for (ref = stale_refs; ref; ref = ref->next) {
 353                struct string_list_item *item =
 354                        string_list_append(&states->stale, abbrev_branch(ref->name));
 355                item->util = xstrdup(ref->name);
 356        }
 357        free_refs(stale_refs);
 358        free_refs(fetch_map);
 359
 360        string_list_sort(&states->new_refs);
 361        string_list_sort(&states->tracked);
 362        string_list_sort(&states->stale);
 363
 364        return 0;
 365}
 366
 367struct push_info {
 368        char *dest;
 369        int forced;
 370        enum {
 371                PUSH_STATUS_CREATE = 0,
 372                PUSH_STATUS_DELETE,
 373                PUSH_STATUS_UPTODATE,
 374                PUSH_STATUS_FASTFORWARD,
 375                PUSH_STATUS_OUTOFDATE,
 376                PUSH_STATUS_NOTQUERIED
 377        } status;
 378};
 379
 380static int get_push_ref_states(const struct ref *remote_refs,
 381        struct ref_states *states)
 382{
 383        struct remote *remote = states->remote;
 384        struct ref *ref, *local_refs, *push_map;
 385        if (remote->mirror)
 386                return 0;
 387
 388        local_refs = get_local_heads();
 389        push_map = copy_ref_list(remote_refs);
 390
 391        match_push_refs(local_refs, &push_map, remote->push_refspec_nr,
 392                        remote->push_refspec, MATCH_REFS_NONE);
 393
 394        states->push.strdup_strings = 1;
 395        for (ref = push_map; ref; ref = ref->next) {
 396                struct string_list_item *item;
 397                struct push_info *info;
 398
 399                if (!ref->peer_ref)
 400                        continue;
 401                oidcpy(&ref->new_oid, &ref->peer_ref->new_oid);
 402
 403                item = string_list_append(&states->push,
 404                                          abbrev_branch(ref->peer_ref->name));
 405                item->util = xcalloc(1, sizeof(struct push_info));
 406                info = item->util;
 407                info->forced = ref->force;
 408                info->dest = xstrdup(abbrev_branch(ref->name));
 409
 410                if (is_null_oid(&ref->new_oid)) {
 411                        info->status = PUSH_STATUS_DELETE;
 412                } else if (!oidcmp(&ref->old_oid, &ref->new_oid))
 413                        info->status = PUSH_STATUS_UPTODATE;
 414                else if (is_null_oid(&ref->old_oid))
 415                        info->status = PUSH_STATUS_CREATE;
 416                else if (has_object_file(&ref->old_oid) &&
 417                         ref_newer(&ref->new_oid, &ref->old_oid))
 418                        info->status = PUSH_STATUS_FASTFORWARD;
 419                else
 420                        info->status = PUSH_STATUS_OUTOFDATE;
 421        }
 422        free_refs(local_refs);
 423        free_refs(push_map);
 424        return 0;
 425}
 426
 427static int get_push_ref_states_noquery(struct ref_states *states)
 428{
 429        int i;
 430        struct remote *remote = states->remote;
 431        struct string_list_item *item;
 432        struct push_info *info;
 433
 434        if (remote->mirror)
 435                return 0;
 436
 437        states->push.strdup_strings = 1;
 438        if (!remote->push_refspec_nr) {
 439                item = string_list_append(&states->push, _("(matching)"));
 440                info = item->util = xcalloc(1, sizeof(struct push_info));
 441                info->status = PUSH_STATUS_NOTQUERIED;
 442                info->dest = xstrdup(item->string);
 443        }
 444        for (i = 0; i < remote->push_refspec_nr; i++) {
 445                struct refspec *spec = remote->push + i;
 446                if (spec->matching)
 447                        item = string_list_append(&states->push, _("(matching)"));
 448                else if (strlen(spec->src))
 449                        item = string_list_append(&states->push, spec->src);
 450                else
 451                        item = string_list_append(&states->push, _("(delete)"));
 452
 453                info = item->util = xcalloc(1, sizeof(struct push_info));
 454                info->forced = spec->force;
 455                info->status = PUSH_STATUS_NOTQUERIED;
 456                info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 457        }
 458        return 0;
 459}
 460
 461static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 462{
 463        struct ref *ref, *matches;
 464        struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 465        struct refspec refspec;
 466
 467        refspec.force = 0;
 468        refspec.pattern = 1;
 469        refspec.src = refspec.dst = "refs/heads/*";
 470        states->heads.strdup_strings = 1;
 471        get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 472        matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 473                                    fetch_map, 1);
 474        for (ref = matches; ref; ref = ref->next)
 475                string_list_append(&states->heads, abbrev_branch(ref->name));
 476
 477        free_refs(fetch_map);
 478        free_refs(matches);
 479
 480        return 0;
 481}
 482
 483struct known_remote {
 484        struct known_remote *next;
 485        struct remote *remote;
 486};
 487
 488struct known_remotes {
 489        struct remote *to_delete;
 490        struct known_remote *list;
 491};
 492
 493static int add_known_remote(struct remote *remote, void *cb_data)
 494{
 495        struct known_remotes *all = cb_data;
 496        struct known_remote *r;
 497
 498        if (!strcmp(all->to_delete->name, remote->name))
 499                return 0;
 500
 501        r = xmalloc(sizeof(*r));
 502        r->remote = remote;
 503        r->next = all->list;
 504        all->list = r;
 505        return 0;
 506}
 507
 508struct branches_for_remote {
 509        struct remote *remote;
 510        struct string_list *branches, *skipped;
 511        struct known_remotes *keep;
 512};
 513
 514static int add_branch_for_removal(const char *refname,
 515        const struct object_id *oid, int flags, void *cb_data)
 516{
 517        struct branches_for_remote *branches = cb_data;
 518        struct refspec refspec;
 519        struct known_remote *kr;
 520
 521        memset(&refspec, 0, sizeof(refspec));
 522        refspec.dst = (char *)refname;
 523        if (remote_find_tracking(branches->remote, &refspec))
 524                return 0;
 525
 526        /* don't delete a branch if another remote also uses it */
 527        for (kr = branches->keep->list; kr; kr = kr->next) {
 528                memset(&refspec, 0, sizeof(refspec));
 529                refspec.dst = (char *)refname;
 530                if (!remote_find_tracking(kr->remote, &refspec))
 531                        return 0;
 532        }
 533
 534        /* don't delete non-remote-tracking refs */
 535        if (!starts_with(refname, "refs/remotes/")) {
 536                /* advise user how to delete local branches */
 537                if (starts_with(refname, "refs/heads/"))
 538                        string_list_append(branches->skipped,
 539                                           abbrev_branch(refname));
 540                /* silently skip over other non-remote refs */
 541                return 0;
 542        }
 543
 544        string_list_append(branches->branches, refname);
 545
 546        return 0;
 547}
 548
 549struct rename_info {
 550        const char *old_name;
 551        const char *new_name;
 552        struct string_list *remote_branches;
 553};
 554
 555static int read_remote_branches(const char *refname,
 556        const struct object_id *oid, int flags, void *cb_data)
 557{
 558        struct rename_info *rename = cb_data;
 559        struct strbuf buf = STRBUF_INIT;
 560        struct string_list_item *item;
 561        int flag;
 562        const char *symref;
 563
 564        strbuf_addf(&buf, "refs/remotes/%s/", rename->old_name);
 565        if (starts_with(refname, buf.buf)) {
 566                item = string_list_append(rename->remote_branches, xstrdup(refname));
 567                symref = resolve_ref_unsafe(refname, RESOLVE_REF_READING,
 568                                            NULL, &flag);
 569                if (symref && (flag & REF_ISSYMREF))
 570                        item->util = xstrdup(symref);
 571                else
 572                        item->util = NULL;
 573        }
 574        strbuf_release(&buf);
 575
 576        return 0;
 577}
 578
 579static int migrate_file(struct remote *remote)
 580{
 581        struct strbuf buf = STRBUF_INIT;
 582        int i;
 583
 584        strbuf_addf(&buf, "remote.%s.url", remote->name);
 585        for (i = 0; i < remote->url_nr; i++)
 586                git_config_set_multivar(buf.buf, remote->url[i], "^$", 0);
 587        strbuf_reset(&buf);
 588        strbuf_addf(&buf, "remote.%s.push", remote->name);
 589        for (i = 0; i < remote->push_refspec_nr; i++)
 590                git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0);
 591        strbuf_reset(&buf);
 592        strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 593        for (i = 0; i < remote->fetch_refspec_nr; i++)
 594                git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0);
 595        if (remote->origin == REMOTE_REMOTES)
 596                unlink_or_warn(git_path("remotes/%s", remote->name));
 597        else if (remote->origin == REMOTE_BRANCHES)
 598                unlink_or_warn(git_path("branches/%s", remote->name));
 599        strbuf_release(&buf);
 600
 601        return 0;
 602}
 603
 604static int mv(int argc, const char **argv)
 605{
 606        struct option options[] = {
 607                OPT_END()
 608        };
 609        struct remote *oldremote, *newremote;
 610        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT,
 611                old_remote_context = STRBUF_INIT;
 612        struct string_list remote_branches = STRING_LIST_INIT_NODUP;
 613        struct rename_info rename;
 614        int i, refspec_updated = 0;
 615
 616        if (argc != 3)
 617                usage_with_options(builtin_remote_rename_usage, options);
 618
 619        rename.old_name = argv[1];
 620        rename.new_name = argv[2];
 621        rename.remote_branches = &remote_branches;
 622
 623        oldremote = remote_get(rename.old_name);
 624        if (!remote_is_configured(oldremote, 1))
 625                die(_("No such remote: %s"), rename.old_name);
 626
 627        if (!strcmp(rename.old_name, rename.new_name) && oldremote->origin != REMOTE_CONFIG)
 628                return migrate_file(oldremote);
 629
 630        newremote = remote_get(rename.new_name);
 631        if (remote_is_configured(newremote, 1))
 632                die(_("remote %s already exists."), rename.new_name);
 633
 634        strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new_name);
 635        if (!valid_fetch_refspec(buf.buf))
 636                die(_("'%s' is not a valid remote name"), rename.new_name);
 637
 638        strbuf_reset(&buf);
 639        strbuf_addf(&buf, "remote.%s", rename.old_name);
 640        strbuf_addf(&buf2, "remote.%s", rename.new_name);
 641        if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 642                return error(_("Could not rename config section '%s' to '%s'"),
 643                                buf.buf, buf2.buf);
 644
 645        strbuf_reset(&buf);
 646        strbuf_addf(&buf, "remote.%s.fetch", rename.new_name);
 647        git_config_set_multivar(buf.buf, NULL, NULL, 1);
 648        strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old_name);
 649        for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 650                char *ptr;
 651
 652                strbuf_reset(&buf2);
 653                strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 654                ptr = strstr(buf2.buf, old_remote_context.buf);
 655                if (ptr) {
 656                        refspec_updated = 1;
 657                        strbuf_splice(&buf2,
 658                                      ptr-buf2.buf + strlen(":refs/remotes/"),
 659                                      strlen(rename.old_name), rename.new_name,
 660                                      strlen(rename.new_name));
 661                } else
 662                        warning(_("Not updating non-default fetch refspec\n"
 663                                  "\t%s\n"
 664                                  "\tPlease update the configuration manually if necessary."),
 665                                buf2.buf);
 666
 667                git_config_set_multivar(buf.buf, buf2.buf, "^$", 0);
 668        }
 669
 670        read_branches();
 671        for (i = 0; i < branch_list.nr; i++) {
 672                struct string_list_item *item = branch_list.items + i;
 673                struct branch_info *info = item->util;
 674                if (info->remote_name && !strcmp(info->remote_name, rename.old_name)) {
 675                        strbuf_reset(&buf);
 676                        strbuf_addf(&buf, "branch.%s.remote", item->string);
 677                        git_config_set(buf.buf, rename.new_name);
 678                }
 679        }
 680
 681        if (!refspec_updated)
 682                return 0;
 683
 684        /*
 685         * First remove symrefs, then rename the rest, finally create
 686         * the new symrefs.
 687         */
 688        for_each_ref(read_remote_branches, &rename);
 689        for (i = 0; i < remote_branches.nr; i++) {
 690                struct string_list_item *item = remote_branches.items + i;
 691                int flag = 0;
 692                struct object_id oid;
 693
 694                read_ref_full(item->string, RESOLVE_REF_READING, &oid, &flag);
 695                if (!(flag & REF_ISSYMREF))
 696                        continue;
 697                if (delete_ref(NULL, item->string, NULL, REF_NO_DEREF))
 698                        die(_("deleting '%s' failed"), item->string);
 699        }
 700        for (i = 0; i < remote_branches.nr; i++) {
 701                struct string_list_item *item = remote_branches.items + i;
 702
 703                if (item->util)
 704                        continue;
 705                strbuf_reset(&buf);
 706                strbuf_addstr(&buf, item->string);
 707                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old_name),
 708                                rename.new_name, strlen(rename.new_name));
 709                strbuf_reset(&buf2);
 710                strbuf_addf(&buf2, "remote: renamed %s to %s",
 711                                item->string, buf.buf);
 712                if (rename_ref(item->string, buf.buf, buf2.buf))
 713                        die(_("renaming '%s' failed"), item->string);
 714        }
 715        for (i = 0; i < remote_branches.nr; i++) {
 716                struct string_list_item *item = remote_branches.items + i;
 717
 718                if (!item->util)
 719                        continue;
 720                strbuf_reset(&buf);
 721                strbuf_addstr(&buf, item->string);
 722                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old_name),
 723                                rename.new_name, strlen(rename.new_name));
 724                strbuf_reset(&buf2);
 725                strbuf_addstr(&buf2, item->util);
 726                strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old_name),
 727                                rename.new_name, strlen(rename.new_name));
 728                strbuf_reset(&buf3);
 729                strbuf_addf(&buf3, "remote: renamed %s to %s",
 730                                item->string, buf.buf);
 731                if (create_symref(buf.buf, buf2.buf, buf3.buf))
 732                        die(_("creating '%s' failed"), buf.buf);
 733        }
 734        return 0;
 735}
 736
 737static int rm(int argc, const char **argv)
 738{
 739        struct option options[] = {
 740                OPT_END()
 741        };
 742        struct remote *remote;
 743        struct strbuf buf = STRBUF_INIT;
 744        struct known_remotes known_remotes = { NULL, NULL };
 745        struct string_list branches = STRING_LIST_INIT_DUP;
 746        struct string_list skipped = STRING_LIST_INIT_DUP;
 747        struct branches_for_remote cb_data;
 748        int i, result;
 749
 750        memset(&cb_data, 0, sizeof(cb_data));
 751        cb_data.branches = &branches;
 752        cb_data.skipped = &skipped;
 753        cb_data.keep = &known_remotes;
 754
 755        if (argc != 2)
 756                usage_with_options(builtin_remote_rm_usage, options);
 757
 758        remote = remote_get(argv[1]);
 759        if (!remote_is_configured(remote, 1))
 760                die(_("No such remote: %s"), argv[1]);
 761
 762        known_remotes.to_delete = remote;
 763        for_each_remote(add_known_remote, &known_remotes);
 764
 765        read_branches();
 766        for (i = 0; i < branch_list.nr; i++) {
 767                struct string_list_item *item = branch_list.items + i;
 768                struct branch_info *info = item->util;
 769                if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 770                        const char *keys[] = { "remote", "merge", NULL }, **k;
 771                        for (k = keys; *k; k++) {
 772                                strbuf_reset(&buf);
 773                                strbuf_addf(&buf, "branch.%s.%s",
 774                                                item->string, *k);
 775                                result = git_config_set_gently(buf.buf, NULL);
 776                                if (result && result != CONFIG_NOTHING_SET)
 777                                        die(_("could not unset '%s'"), buf.buf);
 778                        }
 779                }
 780        }
 781
 782        /*
 783         * We cannot just pass a function to for_each_ref() which deletes
 784         * the branches one by one, since for_each_ref() relies on cached
 785         * refs, which are invalidated when deleting a branch.
 786         */
 787        cb_data.remote = remote;
 788        result = for_each_ref(add_branch_for_removal, &cb_data);
 789        strbuf_release(&buf);
 790
 791        if (!result)
 792                result = delete_refs("remote: remove", &branches, REF_NO_DEREF);
 793        string_list_clear(&branches, 0);
 794
 795        if (skipped.nr) {
 796                fprintf_ln(stderr,
 797                           Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 798                              "to delete it, use:",
 799                              "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 800                              "to delete them, use:",
 801                              skipped.nr));
 802                for (i = 0; i < skipped.nr; i++)
 803                        fprintf(stderr, "  git branch -d %s\n",
 804                                skipped.items[i].string);
 805        }
 806        string_list_clear(&skipped, 0);
 807
 808        if (!result) {
 809                strbuf_addf(&buf, "remote.%s", remote->name);
 810                if (git_config_rename_section(buf.buf, NULL) < 1)
 811                        return error(_("Could not remove config section '%s'"), buf.buf);
 812        }
 813
 814        return result;
 815}
 816
 817static void clear_push_info(void *util, const char *string)
 818{
 819        struct push_info *info = util;
 820        free(info->dest);
 821        free(info);
 822}
 823
 824static void free_remote_ref_states(struct ref_states *states)
 825{
 826        string_list_clear(&states->new_refs, 0);
 827        string_list_clear(&states->stale, 1);
 828        string_list_clear(&states->tracked, 0);
 829        string_list_clear(&states->heads, 0);
 830        string_list_clear_func(&states->push, clear_push_info);
 831}
 832
 833static int append_ref_to_tracked_list(const char *refname,
 834        const struct object_id *oid, int flags, void *cb_data)
 835{
 836        struct ref_states *states = cb_data;
 837        struct refspec refspec;
 838
 839        if (flags & REF_ISSYMREF)
 840                return 0;
 841
 842        memset(&refspec, 0, sizeof(refspec));
 843        refspec.dst = (char *)refname;
 844        if (!remote_find_tracking(states->remote, &refspec))
 845                string_list_append(&states->tracked, abbrev_branch(refspec.src));
 846
 847        return 0;
 848}
 849
 850static int get_remote_ref_states(const char *name,
 851                                 struct ref_states *states,
 852                                 int query)
 853{
 854        struct transport *transport;
 855        const struct ref *remote_refs;
 856
 857        states->remote = remote_get(name);
 858        if (!states->remote)
 859                return error(_("No such remote: %s"), name);
 860
 861        read_branches();
 862
 863        if (query) {
 864                transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 865                        states->remote->url[0] : NULL);
 866                remote_refs = transport_get_remote_refs(transport);
 867                transport_disconnect(transport);
 868
 869                states->queried = 1;
 870                if (query & GET_REF_STATES)
 871                        get_ref_states(remote_refs, states);
 872                if (query & GET_HEAD_NAMES)
 873                        get_head_names(remote_refs, states);
 874                if (query & GET_PUSH_REF_STATES)
 875                        get_push_ref_states(remote_refs, states);
 876        } else {
 877                for_each_ref(append_ref_to_tracked_list, states);
 878                string_list_sort(&states->tracked);
 879                get_push_ref_states_noquery(states);
 880        }
 881
 882        return 0;
 883}
 884
 885struct show_info {
 886        struct string_list *list;
 887        struct ref_states *states;
 888        int width, width2;
 889        int any_rebase;
 890};
 891
 892static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 893{
 894        struct show_info *info = cb_data;
 895        int n = strlen(item->string);
 896        if (n > info->width)
 897                info->width = n;
 898        string_list_insert(info->list, item->string);
 899        return 0;
 900}
 901
 902static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 903{
 904        struct show_info *info = cb_data;
 905        struct ref_states *states = info->states;
 906        const char *name = item->string;
 907
 908        if (states->queried) {
 909                const char *fmt = "%s";
 910                const char *arg = "";
 911                if (string_list_has_string(&states->new_refs, name)) {
 912                        fmt = _(" new (next fetch will store in remotes/%s)");
 913                        arg = states->remote->name;
 914                } else if (string_list_has_string(&states->tracked, name))
 915                        arg = _(" tracked");
 916                else if (string_list_has_string(&states->stale, name))
 917                        arg = _(" stale (use 'git remote prune' to remove)");
 918                else
 919                        arg = _(" ???");
 920                printf("    %-*s", info->width, name);
 921                printf(fmt, arg);
 922                printf("\n");
 923        } else
 924                printf("    %s\n", name);
 925
 926        return 0;
 927}
 928
 929static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 930{
 931        struct show_info *show_info = cb_data;
 932        struct ref_states *states = show_info->states;
 933        struct branch_info *branch_info = branch_item->util;
 934        struct string_list_item *item;
 935        int n;
 936
 937        if (!branch_info->merge.nr || !branch_info->remote_name ||
 938            strcmp(states->remote->name, branch_info->remote_name))
 939                return 0;
 940        if ((n = strlen(branch_item->string)) > show_info->width)
 941                show_info->width = n;
 942        if (branch_info->rebase)
 943                show_info->any_rebase = 1;
 944
 945        item = string_list_insert(show_info->list, branch_item->string);
 946        item->util = branch_info;
 947
 948        return 0;
 949}
 950
 951static int show_local_info_item(struct string_list_item *item, void *cb_data)
 952{
 953        struct show_info *show_info = cb_data;
 954        struct branch_info *branch_info = item->util;
 955        struct string_list *merge = &branch_info->merge;
 956        int width = show_info->width + 4;
 957        int i;
 958
 959        if (branch_info->rebase && branch_info->merge.nr > 1) {
 960                error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"),
 961                        item->string);
 962                return 0;
 963        }
 964
 965        printf("    %-*s ", show_info->width, item->string);
 966        if (branch_info->rebase) {
 967                printf_ln(branch_info->rebase == INTERACTIVE_REBASE
 968                          ? _("rebases interactively onto remote %s")
 969                          : _("rebases onto remote %s"), merge->items[0].string);
 970                return 0;
 971        } else if (show_info->any_rebase) {
 972                printf_ln(_(" merges with remote %s"), merge->items[0].string);
 973                width++;
 974        } else {
 975                printf_ln(_("merges with remote %s"), merge->items[0].string);
 976        }
 977        for (i = 1; i < merge->nr; i++)
 978                printf(_("%-*s    and with remote %s\n"), width, "",
 979                       merge->items[i].string);
 980
 981        return 0;
 982}
 983
 984static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
 985{
 986        struct show_info *show_info = cb_data;
 987        struct push_info *push_info = push_item->util;
 988        struct string_list_item *item;
 989        int n;
 990        if ((n = strlen(push_item->string)) > show_info->width)
 991                show_info->width = n;
 992        if ((n = strlen(push_info->dest)) > show_info->width2)
 993                show_info->width2 = n;
 994        item = string_list_append(show_info->list, push_item->string);
 995        item->util = push_item->util;
 996        return 0;
 997}
 998
 999/*
1000 * Sorting comparison for a string list that has push_info
1001 * structs in its util field
1002 */
1003static int cmp_string_with_push(const void *va, const void *vb)
1004{
1005        const struct string_list_item *a = va;
1006        const struct string_list_item *b = vb;
1007        const struct push_info *a_push = a->util;
1008        const struct push_info *b_push = b->util;
1009        int cmp = strcmp(a->string, b->string);
1010        return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1011}
1012
1013static int show_push_info_item(struct string_list_item *item, void *cb_data)
1014{
1015        struct show_info *show_info = cb_data;
1016        struct push_info *push_info = item->util;
1017        const char *src = item->string, *status = NULL;
1018
1019        switch (push_info->status) {
1020        case PUSH_STATUS_CREATE:
1021                status = _("create");
1022                break;
1023        case PUSH_STATUS_DELETE:
1024                status = _("delete");
1025                src = _("(none)");
1026                break;
1027        case PUSH_STATUS_UPTODATE:
1028                status = _("up to date");
1029                break;
1030        case PUSH_STATUS_FASTFORWARD:
1031                status = _("fast-forwardable");
1032                break;
1033        case PUSH_STATUS_OUTOFDATE:
1034                status = _("local out of date");
1035                break;
1036        case PUSH_STATUS_NOTQUERIED:
1037                break;
1038        }
1039        if (status) {
1040                if (push_info->forced)
1041                        printf_ln(_("    %-*s forces to %-*s (%s)"), show_info->width, src,
1042                               show_info->width2, push_info->dest, status);
1043                else
1044                        printf_ln(_("    %-*s pushes to %-*s (%s)"), show_info->width, src,
1045                               show_info->width2, push_info->dest, status);
1046        } else {
1047                if (push_info->forced)
1048                        printf_ln(_("    %-*s forces to %s"), show_info->width, src,
1049                               push_info->dest);
1050                else
1051                        printf_ln(_("    %-*s pushes to %s"), show_info->width, src,
1052                               push_info->dest);
1053        }
1054        return 0;
1055}
1056
1057static int get_one_entry(struct remote *remote, void *priv)
1058{
1059        struct string_list *list = priv;
1060        struct strbuf url_buf = STRBUF_INIT;
1061        const char **url;
1062        int i, url_nr;
1063
1064        if (remote->url_nr > 0) {
1065                strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1066                string_list_append(list, remote->name)->util =
1067                                strbuf_detach(&url_buf, NULL);
1068        } else
1069                string_list_append(list, remote->name)->util = NULL;
1070        if (remote->pushurl_nr) {
1071                url = remote->pushurl;
1072                url_nr = remote->pushurl_nr;
1073        } else {
1074                url = remote->url;
1075                url_nr = remote->url_nr;
1076        }
1077        for (i = 0; i < url_nr; i++)
1078        {
1079                strbuf_addf(&url_buf, "%s (push)", url[i]);
1080                string_list_append(list, remote->name)->util =
1081                                strbuf_detach(&url_buf, NULL);
1082        }
1083
1084        return 0;
1085}
1086
1087static int show_all(void)
1088{
1089        struct string_list list = STRING_LIST_INIT_NODUP;
1090        int result;
1091
1092        list.strdup_strings = 1;
1093        result = for_each_remote(get_one_entry, &list);
1094
1095        if (!result) {
1096                int i;
1097
1098                string_list_sort(&list);
1099                for (i = 0; i < list.nr; i++) {
1100                        struct string_list_item *item = list.items + i;
1101                        if (verbose)
1102                                printf("%s\t%s\n", item->string,
1103                                        item->util ? (const char *)item->util : "");
1104                        else {
1105                                if (i && !strcmp((item - 1)->string, item->string))
1106                                        continue;
1107                                printf("%s\n", item->string);
1108                        }
1109                }
1110        }
1111        string_list_clear(&list, 1);
1112        return result;
1113}
1114
1115static int show(int argc, const char **argv)
1116{
1117        int no_query = 0, result = 0, query_flag = 0;
1118        struct option options[] = {
1119                OPT_BOOL('n', NULL, &no_query, N_("do not query remotes")),
1120                OPT_END()
1121        };
1122        struct ref_states states;
1123        struct string_list info_list = STRING_LIST_INIT_NODUP;
1124        struct show_info info;
1125
1126        argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1127                             0);
1128
1129        if (argc < 1)
1130                return show_all();
1131
1132        if (!no_query)
1133                query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1134
1135        memset(&states, 0, sizeof(states));
1136        memset(&info, 0, sizeof(info));
1137        info.states = &states;
1138        info.list = &info_list;
1139        for (; argc; argc--, argv++) {
1140                int i;
1141                const char **url;
1142                int url_nr;
1143
1144                get_remote_ref_states(*argv, &states, query_flag);
1145
1146                printf_ln(_("* remote %s"), *argv);
1147                printf_ln(_("  Fetch URL: %s"), states.remote->url_nr > 0 ?
1148                       states.remote->url[0] : _("(no URL)"));
1149                if (states.remote->pushurl_nr) {
1150                        url = states.remote->pushurl;
1151                        url_nr = states.remote->pushurl_nr;
1152                } else {
1153                        url = states.remote->url;
1154                        url_nr = states.remote->url_nr;
1155                }
1156                for (i = 0; i < url_nr; i++)
1157                        /*
1158                         * TRANSLATORS: the colon ':' should align
1159                         * with the one in " Fetch URL: %s"
1160                         * translation.
1161                         */
1162                        printf_ln(_("  Push  URL: %s"), url[i]);
1163                if (!i)
1164                        printf_ln(_("  Push  URL: %s"), _("(no URL)"));
1165                if (no_query)
1166                        printf_ln(_("  HEAD branch: %s"), _("(not queried)"));
1167                else if (!states.heads.nr)
1168                        printf_ln(_("  HEAD branch: %s"), _("(unknown)"));
1169                else if (states.heads.nr == 1)
1170                        printf_ln(_("  HEAD branch: %s"), states.heads.items[0].string);
1171                else {
1172                        printf(_("  HEAD branch (remote HEAD is ambiguous,"
1173                                 " may be one of the following):\n"));
1174                        for (i = 0; i < states.heads.nr; i++)
1175                                printf("    %s\n", states.heads.items[i].string);
1176                }
1177
1178                /* remote branch info */
1179                info.width = 0;
1180                for_each_string_list(&states.new_refs, add_remote_to_show_info, &info);
1181                for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1182                for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1183                if (info.list->nr)
1184                        printf_ln(Q_("  Remote branch:%s",
1185                                     "  Remote branches:%s",
1186                                     info.list->nr),
1187                                  no_query ? _(" (status not queried)") : "");
1188                for_each_string_list(info.list, show_remote_info_item, &info);
1189                string_list_clear(info.list, 0);
1190
1191                /* git pull info */
1192                info.width = 0;
1193                info.any_rebase = 0;
1194                for_each_string_list(&branch_list, add_local_to_show_info, &info);
1195                if (info.list->nr)
1196                        printf_ln(Q_("  Local branch configured for 'git pull':",
1197                                     "  Local branches configured for 'git pull':",
1198                                     info.list->nr));
1199                for_each_string_list(info.list, show_local_info_item, &info);
1200                string_list_clear(info.list, 0);
1201
1202                /* git push info */
1203                if (states.remote->mirror)
1204                        printf_ln(_("  Local refs will be mirrored by 'git push'"));
1205
1206                info.width = info.width2 = 0;
1207                for_each_string_list(&states.push, add_push_to_show_info, &info);
1208                QSORT(info.list->items, info.list->nr, cmp_string_with_push);
1209                if (info.list->nr)
1210                        printf_ln(Q_("  Local ref configured for 'git push'%s:",
1211                                     "  Local refs configured for 'git push'%s:",
1212                                     info.list->nr),
1213                                  no_query ? _(" (status not queried)") : "");
1214                for_each_string_list(info.list, show_push_info_item, &info);
1215                string_list_clear(info.list, 0);
1216
1217                free_remote_ref_states(&states);
1218        }
1219
1220        return result;
1221}
1222
1223static int set_head(int argc, const char **argv)
1224{
1225        int i, opt_a = 0, opt_d = 0, result = 0;
1226        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1227        char *head_name = NULL;
1228
1229        struct option options[] = {
1230                OPT_BOOL('a', "auto", &opt_a,
1231                         N_("set refs/remotes/<name>/HEAD according to remote")),
1232                OPT_BOOL('d', "delete", &opt_d,
1233                         N_("delete refs/remotes/<name>/HEAD")),
1234                OPT_END()
1235        };
1236        argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1237                             0);
1238        if (argc)
1239                strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1240
1241        if (!opt_a && !opt_d && argc == 2) {
1242                head_name = xstrdup(argv[1]);
1243        } else if (opt_a && !opt_d && argc == 1) {
1244                struct ref_states states;
1245                memset(&states, 0, sizeof(states));
1246                get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1247                if (!states.heads.nr)
1248                        result |= error(_("Cannot determine remote HEAD"));
1249                else if (states.heads.nr > 1) {
1250                        result |= error(_("Multiple remote HEAD branches. "
1251                                          "Please choose one explicitly with:"));
1252                        for (i = 0; i < states.heads.nr; i++)
1253                                fprintf(stderr, "  git remote set-head %s %s\n",
1254                                        argv[0], states.heads.items[i].string);
1255                } else
1256                        head_name = xstrdup(states.heads.items[0].string);
1257                free_remote_ref_states(&states);
1258        } else if (opt_d && !opt_a && argc == 1) {
1259                if (delete_ref(NULL, buf.buf, NULL, REF_NO_DEREF))
1260                        result |= error(_("Could not delete %s"), buf.buf);
1261        } else
1262                usage_with_options(builtin_remote_sethead_usage, options);
1263
1264        if (head_name) {
1265                strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1266                /* make sure it's valid */
1267                if (!ref_exists(buf2.buf))
1268                        result |= error(_("Not a valid ref: %s"), buf2.buf);
1269                else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1270                        result |= error(_("Could not setup %s"), buf.buf);
1271                if (opt_a)
1272                        printf("%s/HEAD set to %s\n", argv[0], head_name);
1273                free(head_name);
1274        }
1275
1276        strbuf_release(&buf);
1277        strbuf_release(&buf2);
1278        return result;
1279}
1280
1281static int prune_remote(const char *remote, int dry_run)
1282{
1283        int result = 0;
1284        struct ref_states states;
1285        struct string_list refs_to_prune = STRING_LIST_INIT_NODUP;
1286        struct string_list_item *item;
1287        const char *dangling_msg = dry_run
1288                ? _(" %s will become dangling!")
1289                : _(" %s has become dangling!");
1290
1291        memset(&states, 0, sizeof(states));
1292        get_remote_ref_states(remote, &states, GET_REF_STATES);
1293
1294        if (!states.stale.nr) {
1295                free_remote_ref_states(&states);
1296                return 0;
1297        }
1298
1299        printf_ln(_("Pruning %s"), remote);
1300        printf_ln(_("URL: %s"),
1301                  states.remote->url_nr
1302                  ? states.remote->url[0]
1303                  : _("(no URL)"));
1304
1305        for_each_string_list_item(item, &states.stale)
1306                string_list_append(&refs_to_prune, item->util);
1307        string_list_sort(&refs_to_prune);
1308
1309        if (!dry_run)
1310                result |= delete_refs("remote: prune", &refs_to_prune, 0);
1311
1312        for_each_string_list_item(item, &states.stale) {
1313                const char *refname = item->util;
1314
1315                if (dry_run)
1316                        printf_ln(_(" * [would prune] %s"),
1317                               abbrev_ref(refname, "refs/remotes/"));
1318                else
1319                        printf_ln(_(" * [pruned] %s"),
1320                               abbrev_ref(refname, "refs/remotes/"));
1321        }
1322
1323        warn_dangling_symrefs(stdout, dangling_msg, &refs_to_prune);
1324
1325        string_list_clear(&refs_to_prune, 0);
1326        free_remote_ref_states(&states);
1327        return result;
1328}
1329
1330static int prune(int argc, const char **argv)
1331{
1332        int dry_run = 0, result = 0;
1333        struct option options[] = {
1334                OPT__DRY_RUN(&dry_run, N_("dry run")),
1335                OPT_END()
1336        };
1337
1338        argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1339                             0);
1340
1341        if (argc < 1)
1342                usage_with_options(builtin_remote_prune_usage, options);
1343
1344        for (; argc; argc--, argv++)
1345                result |= prune_remote(*argv, dry_run);
1346
1347        return result;
1348}
1349
1350static int get_remote_default(const char *key, const char *value, void *priv)
1351{
1352        if (strcmp(key, "remotes.default") == 0) {
1353                int *found = priv;
1354                *found = 1;
1355        }
1356        return 0;
1357}
1358
1359static int update(int argc, const char **argv)
1360{
1361        int i, prune = -1;
1362        struct option options[] = {
1363                OPT_BOOL('p', "prune", &prune,
1364                         N_("prune remotes after fetching")),
1365                OPT_END()
1366        };
1367        struct argv_array fetch_argv = ARGV_ARRAY_INIT;
1368        int default_defined = 0;
1369        int retval;
1370
1371        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1372                             PARSE_OPT_KEEP_ARGV0);
1373
1374        argv_array_push(&fetch_argv, "fetch");
1375
1376        if (prune != -1)
1377                argv_array_push(&fetch_argv, prune ? "--prune" : "--no-prune");
1378        if (verbose)
1379                argv_array_push(&fetch_argv, "-v");
1380        argv_array_push(&fetch_argv, "--multiple");
1381        if (argc < 2)
1382                argv_array_push(&fetch_argv, "default");
1383        for (i = 1; i < argc; i++)
1384                argv_array_push(&fetch_argv, argv[i]);
1385
1386        if (strcmp(fetch_argv.argv[fetch_argv.argc-1], "default") == 0) {
1387                git_config(get_remote_default, &default_defined);
1388                if (!default_defined) {
1389                        argv_array_pop(&fetch_argv);
1390                        argv_array_push(&fetch_argv, "--all");
1391                }
1392        }
1393
1394        retval = run_command_v_opt(fetch_argv.argv, RUN_GIT_CMD);
1395        argv_array_clear(&fetch_argv);
1396        return retval;
1397}
1398
1399static int remove_all_fetch_refspecs(const char *remote, const char *key)
1400{
1401        return git_config_set_multivar_gently(key, NULL, NULL, 1);
1402}
1403
1404static void add_branches(struct remote *remote, const char **branches,
1405                         const char *key)
1406{
1407        const char *remotename = remote->name;
1408        int mirror = remote->mirror;
1409        struct strbuf refspec = STRBUF_INIT;
1410
1411        for (; *branches; branches++)
1412                add_branch(key, *branches, remotename, mirror, &refspec);
1413
1414        strbuf_release(&refspec);
1415}
1416
1417static int set_remote_branches(const char *remotename, const char **branches,
1418                                int add_mode)
1419{
1420        struct strbuf key = STRBUF_INIT;
1421        struct remote *remote;
1422
1423        strbuf_addf(&key, "remote.%s.fetch", remotename);
1424
1425        remote = remote_get(remotename);
1426        if (!remote_is_configured(remote, 1))
1427                die(_("No such remote '%s'"), remotename);
1428
1429        if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
1430                strbuf_release(&key);
1431                return 1;
1432        }
1433        add_branches(remote, branches, key.buf);
1434
1435        strbuf_release(&key);
1436        return 0;
1437}
1438
1439static int set_branches(int argc, const char **argv)
1440{
1441        int add_mode = 0;
1442        struct option options[] = {
1443                OPT_BOOL('\0', "add", &add_mode, N_("add branch")),
1444                OPT_END()
1445        };
1446
1447        argc = parse_options(argc, argv, NULL, options,
1448                             builtin_remote_setbranches_usage, 0);
1449        if (argc == 0) {
1450                error(_("no remote specified"));
1451                usage_with_options(builtin_remote_setbranches_usage, options);
1452        }
1453        argv[argc] = NULL;
1454
1455        return set_remote_branches(argv[0], argv + 1, add_mode);
1456}
1457
1458static int get_url(int argc, const char **argv)
1459{
1460        int i, push_mode = 0, all_mode = 0;
1461        const char *remotename = NULL;
1462        struct remote *remote;
1463        const char **url;
1464        int url_nr;
1465        struct option options[] = {
1466                OPT_BOOL('\0', "push", &push_mode,
1467                         N_("query push URLs rather than fetch URLs")),
1468                OPT_BOOL('\0', "all", &all_mode,
1469                         N_("return all URLs")),
1470                OPT_END()
1471        };
1472        argc = parse_options(argc, argv, NULL, options, builtin_remote_geturl_usage, 0);
1473
1474        if (argc != 1)
1475                usage_with_options(builtin_remote_geturl_usage, options);
1476
1477        remotename = argv[0];
1478
1479        remote = remote_get(remotename);
1480        if (!remote_is_configured(remote, 1))
1481                die(_("No such remote '%s'"), remotename);
1482
1483        url_nr = 0;
1484        if (push_mode) {
1485                url = remote->pushurl;
1486                url_nr = remote->pushurl_nr;
1487        }
1488        /* else fetch mode */
1489
1490        /* Use the fetch URL when no push URLs were found or requested. */
1491        if (!url_nr) {
1492                url = remote->url;
1493                url_nr = remote->url_nr;
1494        }
1495
1496        if (!url_nr)
1497                die(_("no URLs configured for remote '%s'"), remotename);
1498
1499        if (all_mode) {
1500                for (i = 0; i < url_nr; i++)
1501                        printf_ln("%s", url[i]);
1502        } else {
1503                printf_ln("%s", *url);
1504        }
1505
1506        return 0;
1507}
1508
1509static int set_url(int argc, const char **argv)
1510{
1511        int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1512        int matches = 0, negative_matches = 0;
1513        const char *remotename = NULL;
1514        const char *newurl = NULL;
1515        const char *oldurl = NULL;
1516        struct remote *remote;
1517        regex_t old_regex;
1518        const char **urlset;
1519        int urlset_nr;
1520        struct strbuf name_buf = STRBUF_INIT;
1521        struct option options[] = {
1522                OPT_BOOL('\0', "push", &push_mode,
1523                         N_("manipulate push URLs")),
1524                OPT_BOOL('\0', "add", &add_mode,
1525                         N_("add URL")),
1526                OPT_BOOL('\0', "delete", &delete_mode,
1527                            N_("delete URLs")),
1528                OPT_END()
1529        };
1530        argc = parse_options(argc, argv, NULL, options, builtin_remote_seturl_usage,
1531                             PARSE_OPT_KEEP_ARGV0);
1532
1533        if (add_mode && delete_mode)
1534                die(_("--add --delete doesn't make sense"));
1535
1536        if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1537                usage_with_options(builtin_remote_seturl_usage, options);
1538
1539        remotename = argv[1];
1540        newurl = argv[2];
1541        if (argc > 3)
1542                oldurl = argv[3];
1543
1544        if (delete_mode)
1545                oldurl = newurl;
1546
1547        remote = remote_get(remotename);
1548        if (!remote_is_configured(remote, 1))
1549                die(_("No such remote '%s'"), remotename);
1550
1551        if (push_mode) {
1552                strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1553                urlset = remote->pushurl;
1554                urlset_nr = remote->pushurl_nr;
1555        } else {
1556                strbuf_addf(&name_buf, "remote.%s.url", remotename);
1557                urlset = remote->url;
1558                urlset_nr = remote->url_nr;
1559        }
1560
1561        /* Special cases that add new entry. */
1562        if ((!oldurl && !delete_mode) || add_mode) {
1563                if (add_mode)
1564                        git_config_set_multivar(name_buf.buf, newurl,
1565                                                       "^$", 0);
1566                else
1567                        git_config_set(name_buf.buf, newurl);
1568                goto out;
1569        }
1570
1571        /* Old URL specified. Demand that one matches. */
1572        if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1573                die(_("Invalid old URL pattern: %s"), oldurl);
1574
1575        for (i = 0; i < urlset_nr; i++)
1576                if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1577                        matches++;
1578                else
1579                        negative_matches++;
1580        if (!delete_mode && !matches)
1581                die(_("No such URL found: %s"), oldurl);
1582        if (delete_mode && !negative_matches && !push_mode)
1583                die(_("Will not delete all non-push URLs"));
1584
1585        regfree(&old_regex);
1586
1587        if (!delete_mode)
1588                git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1589        else
1590                git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1591out:
1592        strbuf_release(&name_buf);
1593        return 0;
1594}
1595
1596int cmd_remote(int argc, const char **argv, const char *prefix)
1597{
1598        struct option options[] = {
1599                OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")),
1600                OPT_END()
1601        };
1602        int result;
1603
1604        argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1605                PARSE_OPT_STOP_AT_NON_OPTION);
1606
1607        if (argc < 1)
1608                result = show_all();
1609        else if (!strcmp(argv[0], "add"))
1610                result = add(argc, argv);
1611        else if (!strcmp(argv[0], "rename"))
1612                result = mv(argc, argv);
1613        else if (!strcmp(argv[0], "rm") || !strcmp(argv[0], "remove"))
1614                result = rm(argc, argv);
1615        else if (!strcmp(argv[0], "set-head"))
1616                result = set_head(argc, argv);
1617        else if (!strcmp(argv[0], "set-branches"))
1618                result = set_branches(argc, argv);
1619        else if (!strcmp(argv[0], "get-url"))
1620                result = get_url(argc, argv);
1621        else if (!strcmp(argv[0], "set-url"))
1622                result = set_url(argc, argv);
1623        else if (!strcmp(argv[0], "show"))
1624                result = show(argc, argv);
1625        else if (!strcmp(argv[0], "prune"))
1626                result = prune(argc, argv);
1627        else if (!strcmp(argv[0], "update"))
1628                result = update(argc, argv);
1629        else {
1630                error(_("Unknown subcommand: %s"), argv[0]);
1631                usage_with_options(builtin_remote_usage, options);
1632        }
1633
1634        return result ? 1 : 0;
1635}