builtin / remote.con commit commit: add short-circuit to paint_down_to_common() (d7c1ec3)
   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 "argv-array.h"
  11
  12static const char * const builtin_remote_usage[] = {
  13        N_("git remote [-v | --verbose]"),
  14        N_("git remote add [-t <branch>] [-m <master>] [-f] [--tags | --no-tags] [--mirror=<fetch|push>] <name> <url>"),
  15        N_("git remote rename <old> <new>"),
  16        N_("git remote remove <name>"),
  17        N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
  18        N_("git remote [-v | --verbose] show [-n] <name>"),
  19        N_("git remote prune [-n | --dry-run] <name>"),
  20        N_("git remote [-v | --verbose] update [-p | --prune] [(<group> | <remote>)...]"),
  21        N_("git remote set-branches [--add] <name> <branch>..."),
  22        N_("git remote get-url [--push] [--all] <name>"),
  23        N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
  24        N_("git remote set-url --add <name> <newurl>"),
  25        N_("git remote set-url --delete <name> <url>"),
  26        NULL
  27};
  28
  29static const char * const builtin_remote_add_usage[] = {
  30        N_("git remote add [<options>] <name> <url>"),
  31        NULL
  32};
  33
  34static const char * const builtin_remote_rename_usage[] = {
  35        N_("git remote rename <old> <new>"),
  36        NULL
  37};
  38
  39static const char * const builtin_remote_rm_usage[] = {
  40        N_("git remote remove <name>"),
  41        NULL
  42};
  43
  44static const char * const builtin_remote_sethead_usage[] = {
  45        N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
  46        NULL
  47};
  48
  49static const char * const builtin_remote_setbranches_usage[] = {
  50        N_("git remote set-branches <name> <branch>..."),
  51        N_("git remote set-branches --add <name> <branch>..."),
  52        NULL
  53};
  54
  55static const char * const builtin_remote_show_usage[] = {
  56        N_("git remote show [<options>] <name>"),
  57        NULL
  58};
  59
  60static const char * const builtin_remote_prune_usage[] = {
  61        N_("git remote prune [<options>] <name>"),
  62        NULL
  63};
  64
  65static const char * const builtin_remote_update_usage[] = {
  66        N_("git remote update [<options>] [<group> | <remote>]..."),
  67        NULL
  68};
  69
  70static const char * const builtin_remote_geturl_usage[] = {
  71        N_("git remote get-url [--push] [--all] <name>"),
  72        NULL
  73};
  74
  75static const char * const builtin_remote_seturl_usage[] = {
  76        N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
  77        N_("git remote set-url --add <name> <newurl>"),
  78        N_("git remote set-url --delete <name> <url>"),
  79        NULL
  80};
  81
  82#define GET_REF_STATES (1<<0)
  83#define GET_HEAD_NAMES (1<<1)
  84#define GET_PUSH_REF_STATES (1<<2)
  85
  86static int verbose;
  87
  88static int fetch_remote(const char *name)
  89{
  90        const char *argv[] = { "fetch", name, NULL, NULL };
  91        if (verbose) {
  92                argv[1] = "-v";
  93                argv[2] = name;
  94        }
  95        printf_ln(_("Updating %s"), name);
  96        if (run_command_v_opt(argv, RUN_GIT_CMD))
  97                return error(_("Could not fetch %s"), name);
  98        return 0;
  99}
 100
 101enum {
 102        TAGS_UNSET = 0,
 103        TAGS_DEFAULT = 1,
 104        TAGS_SET = 2
 105};
 106
 107#define MIRROR_NONE 0
 108#define MIRROR_FETCH 1
 109#define MIRROR_PUSH 2
 110#define MIRROR_BOTH (MIRROR_FETCH|MIRROR_PUSH)
 111
 112static void add_branch(const char *key, const char *branchname,
 113                       const char *remotename, int mirror, struct strbuf *tmp)
 114{
 115        strbuf_reset(tmp);
 116        strbuf_addch(tmp, '+');
 117        if (mirror)
 118                strbuf_addf(tmp, "refs/%s:refs/%s",
 119                                branchname, branchname);
 120        else
 121                strbuf_addf(tmp, "refs/heads/%s:refs/remotes/%s/%s",
 122                                branchname, remotename, branchname);
 123        git_config_set_multivar(key, tmp->buf, "^$", 0);
 124}
 125
 126static const char mirror_advice[] =
 127N_("--mirror is dangerous and deprecated; please\n"
 128   "\t use --mirror=fetch or --mirror=push instead");
 129
 130static int parse_mirror_opt(const struct option *opt, const char *arg, int not)
 131{
 132        unsigned *mirror = opt->value;
 133        if (not)
 134                *mirror = MIRROR_NONE;
 135        else if (!arg) {
 136                warning("%s", _(mirror_advice));
 137                *mirror = MIRROR_BOTH;
 138        }
 139        else if (!strcmp(arg, "fetch"))
 140                *mirror = MIRROR_FETCH;
 141        else if (!strcmp(arg, "push"))
 142                *mirror = MIRROR_PUSH;
 143        else
 144                return error(_("unknown mirror argument: %s"), arg);
 145        return 0;
 146}
 147
 148static int add(int argc, const char **argv)
 149{
 150        int fetch = 0, fetch_tags = TAGS_DEFAULT;
 151        unsigned mirror = MIRROR_NONE;
 152        struct string_list track = STRING_LIST_INIT_NODUP;
 153        const char *master = NULL;
 154        struct remote *remote;
 155        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
 156        const char *name, *url;
 157        int i;
 158
 159        struct option options[] = {
 160                OPT_BOOL('f', "fetch", &fetch, N_("fetch the remote branches")),
 161                OPT_SET_INT(0, "tags", &fetch_tags,
 162                            N_("import all tags and associated objects when fetching"),
 163                            TAGS_SET),
 164                OPT_SET_INT(0, NULL, &fetch_tags,
 165                            N_("or do not fetch any tag at all (--no-tags)"), TAGS_UNSET),
 166                OPT_STRING_LIST('t', "track", &track, N_("branch"),
 167                                N_("branch(es) to track")),
 168                OPT_STRING('m', "master", &master, N_("branch"), N_("master branch")),
 169                { OPTION_CALLBACK, 0, "mirror", &mirror, N_("push|fetch"),
 170                        N_("set up remote as a mirror to push to or fetch from"),
 171                        PARSE_OPT_OPTARG, parse_mirror_opt },
 172                OPT_END()
 173        };
 174
 175        argc = parse_options(argc, argv, NULL, options, builtin_remote_add_usage,
 176                             0);
 177
 178        if (argc != 2)
 179                usage_with_options(builtin_remote_add_usage, options);
 180
 181        if (mirror && master)
 182                die(_("specifying a master branch makes no sense with --mirror"));
 183        if (mirror && !(mirror & MIRROR_FETCH) && track.nr)
 184                die(_("specifying branches to track makes sense only with fetch mirrors"));
 185
 186        name = argv[0];
 187        url = argv[1];
 188
 189        remote = remote_get(name);
 190        if (remote_is_configured(remote, 1))
 191                die(_("remote %s already exists."), name);
 192
 193        strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
 194        if (!valid_fetch_refspec(buf2.buf))
 195                die(_("'%s' is not a valid remote name"), name);
 196
 197        strbuf_addf(&buf, "remote.%s.url", name);
 198        git_config_set(buf.buf, url);
 199
 200        if (!mirror || mirror & MIRROR_FETCH) {
 201                strbuf_reset(&buf);
 202                strbuf_addf(&buf, "remote.%s.fetch", name);
 203                if (track.nr == 0)
 204                        string_list_append(&track, "*");
 205                for (i = 0; i < track.nr; i++) {
 206                        add_branch(buf.buf, track.items[i].string,
 207                                   name, mirror, &buf2);
 208                }
 209        }
 210
 211        if (mirror & MIRROR_PUSH) {
 212                strbuf_reset(&buf);
 213                strbuf_addf(&buf, "remote.%s.mirror", name);
 214                git_config_set(buf.buf, "true");
 215        }
 216
 217        if (fetch_tags != TAGS_DEFAULT) {
 218                strbuf_reset(&buf);
 219                strbuf_addf(&buf, "remote.%s.tagopt", name);
 220                git_config_set(buf.buf,
 221                               fetch_tags == TAGS_SET ? "--tags" : "--no-tags");
 222        }
 223
 224        if (fetch && fetch_remote(name))
 225                return 1;
 226
 227        if (master) {
 228                strbuf_reset(&buf);
 229                strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
 230
 231                strbuf_reset(&buf2);
 232                strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
 233
 234                if (create_symref(buf.buf, buf2.buf, "remote add"))
 235                        return error(_("Could not setup master '%s'"), master);
 236        }
 237
 238        strbuf_release(&buf);
 239        strbuf_release(&buf2);
 240        string_list_clear(&track, 0);
 241
 242        return 0;
 243}
 244
 245struct branch_info {
 246        char *remote_name;
 247        struct string_list merge;
 248        enum { NO_REBASE, NORMAL_REBASE, INTERACTIVE_REBASE } rebase;
 249};
 250
 251static struct string_list branch_list = STRING_LIST_INIT_NODUP;
 252
 253static const char *abbrev_ref(const char *name, const char *prefix)
 254{
 255        skip_prefix(name, prefix, &name);
 256        return name;
 257}
 258#define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 259
 260static int config_read_branches(const char *key, const char *value, void *cb)
 261{
 262        if (starts_with(key, "branch.")) {
 263                const char *orig_key = key;
 264                char *name;
 265                struct string_list_item *item;
 266                struct branch_info *info;
 267                enum { REMOTE, MERGE, REBASE } type;
 268                size_t key_len;
 269
 270                key += 7;
 271                if (strip_suffix(key, ".remote", &key_len)) {
 272                        name = xmemdupz(key, key_len);
 273                        type = REMOTE;
 274                } else if (strip_suffix(key, ".merge", &key_len)) {
 275                        name = xmemdupz(key, key_len);
 276                        type = MERGE;
 277                } else if (strip_suffix(key, ".rebase", &key_len)) {
 278                        name = xmemdupz(key, key_len);
 279                        type = REBASE;
 280                } else
 281                        return 0;
 282
 283                item = string_list_insert(&branch_list, name);
 284
 285                if (!item->util)
 286                        item->util = xcalloc(1, sizeof(struct branch_info));
 287                info = item->util;
 288                if (type == REMOTE) {
 289                        if (info->remote_name)
 290                                warning(_("more than one %s"), orig_key);
 291                        info->remote_name = xstrdup(value);
 292                } else if (type == MERGE) {
 293                        char *space = strchr(value, ' ');
 294                        value = abbrev_branch(value);
 295                        while (space) {
 296                                char *merge;
 297                                merge = xstrndup(value, space - value);
 298                                string_list_append(&info->merge, merge);
 299                                value = abbrev_branch(space + 1);
 300                                space = strchr(value, ' ');
 301                        }
 302                        string_list_append(&info->merge, xstrdup(value));
 303                } else {
 304                        int v = git_parse_maybe_bool(value);
 305                        if (v >= 0)
 306                                info->rebase = v;
 307                        else if (!strcmp(value, "preserve"))
 308                                info->rebase = NORMAL_REBASE;
 309                        else if (!strcmp(value, "interactive"))
 310                                info->rebase = INTERACTIVE_REBASE;
 311                }
 312        }
 313        return 0;
 314}
 315
 316static void read_branches(void)
 317{
 318        if (branch_list.nr)
 319                return;
 320        git_config(config_read_branches, NULL);
 321}
 322
 323struct ref_states {
 324        struct remote *remote;
 325        struct string_list new_refs, stale, tracked, heads, push;
 326        int queried;
 327};
 328
 329static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 330{
 331        struct ref *fetch_map = NULL, **tail = &fetch_map;
 332        struct ref *ref, *stale_refs;
 333        int i;
 334
 335        for (i = 0; i < states->remote->fetch_refspec_nr; i++)
 336                if (get_fetch_map(remote_refs, states->remote->fetch + i, &tail, 1))
 337                        die(_("Could not get fetch map for refspec %s"),
 338                                states->remote->fetch_refspec[i]);
 339
 340        states->new_refs.strdup_strings = 1;
 341        states->tracked.strdup_strings = 1;
 342        states->stale.strdup_strings = 1;
 343        for (ref = fetch_map; ref; ref = ref->next) {
 344                if (!ref->peer_ref || !ref_exists(ref->peer_ref->name))
 345                        string_list_append(&states->new_refs, abbrev_branch(ref->name));
 346                else
 347                        string_list_append(&states->tracked, abbrev_branch(ref->name));
 348        }
 349        stale_refs = get_stale_heads(states->remote->fetch,
 350                                     states->remote->fetch_refspec_nr, fetch_map);
 351        for (ref = stale_refs; ref; ref = ref->next) {
 352                struct string_list_item *item =
 353                        string_list_append(&states->stale, abbrev_branch(ref->name));
 354                item->util = xstrdup(ref->name);
 355        }
 356        free_refs(stale_refs);
 357        free_refs(fetch_map);
 358
 359        string_list_sort(&states->new_refs);
 360        string_list_sort(&states->tracked);
 361        string_list_sort(&states->stale);
 362
 363        return 0;
 364}
 365
 366struct push_info {
 367        char *dest;
 368        int forced;
 369        enum {
 370                PUSH_STATUS_CREATE = 0,
 371                PUSH_STATUS_DELETE,
 372                PUSH_STATUS_UPTODATE,
 373                PUSH_STATUS_FASTFORWARD,
 374                PUSH_STATUS_OUTOFDATE,
 375                PUSH_STATUS_NOTQUERIED
 376        } status;
 377};
 378
 379static int get_push_ref_states(const struct ref *remote_refs,
 380        struct ref_states *states)
 381{
 382        struct remote *remote = states->remote;
 383        struct ref *ref, *local_refs, *push_map;
 384        if (remote->mirror)
 385                return 0;
 386
 387        local_refs = get_local_heads();
 388        push_map = copy_ref_list(remote_refs);
 389
 390        match_push_refs(local_refs, &push_map, remote->push_refspec_nr,
 391                        remote->push_refspec, MATCH_REFS_NONE);
 392
 393        states->push.strdup_strings = 1;
 394        for (ref = push_map; ref; ref = ref->next) {
 395                struct string_list_item *item;
 396                struct push_info *info;
 397
 398                if (!ref->peer_ref)
 399                        continue;
 400                oidcpy(&ref->new_oid, &ref->peer_ref->new_oid);
 401
 402                item = string_list_append(&states->push,
 403                                          abbrev_branch(ref->peer_ref->name));
 404                item->util = xcalloc(1, sizeof(struct push_info));
 405                info = item->util;
 406                info->forced = ref->force;
 407                info->dest = xstrdup(abbrev_branch(ref->name));
 408
 409                if (is_null_oid(&ref->new_oid)) {
 410                        info->status = PUSH_STATUS_DELETE;
 411                } else if (!oidcmp(&ref->old_oid, &ref->new_oid))
 412                        info->status = PUSH_STATUS_UPTODATE;
 413                else if (is_null_oid(&ref->old_oid))
 414                        info->status = PUSH_STATUS_CREATE;
 415                else if (has_object_file(&ref->old_oid) &&
 416                         ref_newer(&ref->new_oid, &ref->old_oid))
 417                        info->status = PUSH_STATUS_FASTFORWARD;
 418                else
 419                        info->status = PUSH_STATUS_OUTOFDATE;
 420        }
 421        free_refs(local_refs);
 422        free_refs(push_map);
 423        return 0;
 424}
 425
 426static int get_push_ref_states_noquery(struct ref_states *states)
 427{
 428        int i;
 429        struct remote *remote = states->remote;
 430        struct string_list_item *item;
 431        struct push_info *info;
 432
 433        if (remote->mirror)
 434                return 0;
 435
 436        states->push.strdup_strings = 1;
 437        if (!remote->push_refspec_nr) {
 438                item = string_list_append(&states->push, _("(matching)"));
 439                info = item->util = xcalloc(1, sizeof(struct push_info));
 440                info->status = PUSH_STATUS_NOTQUERIED;
 441                info->dest = xstrdup(item->string);
 442        }
 443        for (i = 0; i < remote->push_refspec_nr; i++) {
 444                struct refspec *spec = remote->push + i;
 445                if (spec->matching)
 446                        item = string_list_append(&states->push, _("(matching)"));
 447                else if (strlen(spec->src))
 448                        item = string_list_append(&states->push, spec->src);
 449                else
 450                        item = string_list_append(&states->push, _("(delete)"));
 451
 452                info = item->util = xcalloc(1, sizeof(struct push_info));
 453                info->forced = spec->force;
 454                info->status = PUSH_STATUS_NOTQUERIED;
 455                info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 456        }
 457        return 0;
 458}
 459
 460static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 461{
 462        struct ref *ref, *matches;
 463        struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 464        struct refspec refspec;
 465
 466        refspec.force = 0;
 467        refspec.pattern = 1;
 468        refspec.src = refspec.dst = "refs/heads/*";
 469        states->heads.strdup_strings = 1;
 470        get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 471        matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 472                                    fetch_map, 1);
 473        for (ref = matches; ref; ref = ref->next)
 474                string_list_append(&states->heads, abbrev_branch(ref->name));
 475
 476        free_refs(fetch_map);
 477        free_refs(matches);
 478
 479        return 0;
 480}
 481
 482struct known_remote {
 483        struct known_remote *next;
 484        struct remote *remote;
 485};
 486
 487struct known_remotes {
 488        struct remote *to_delete;
 489        struct known_remote *list;
 490};
 491
 492static int add_known_remote(struct remote *remote, void *cb_data)
 493{
 494        struct known_remotes *all = cb_data;
 495        struct known_remote *r;
 496
 497        if (!strcmp(all->to_delete->name, remote->name))
 498                return 0;
 499
 500        r = xmalloc(sizeof(*r));
 501        r->remote = remote;
 502        r->next = all->list;
 503        all->list = r;
 504        return 0;
 505}
 506
 507struct branches_for_remote {
 508        struct remote *remote;
 509        struct string_list *branches, *skipped;
 510        struct known_remotes *keep;
 511};
 512
 513static int add_branch_for_removal(const char *refname,
 514        const struct object_id *oid, int flags, void *cb_data)
 515{
 516        struct branches_for_remote *branches = cb_data;
 517        struct refspec refspec;
 518        struct known_remote *kr;
 519
 520        memset(&refspec, 0, sizeof(refspec));
 521        refspec.dst = (char *)refname;
 522        if (remote_find_tracking(branches->remote, &refspec))
 523                return 0;
 524
 525        /* don't delete a branch if another remote also uses it */
 526        for (kr = branches->keep->list; kr; kr = kr->next) {
 527                memset(&refspec, 0, sizeof(refspec));
 528                refspec.dst = (char *)refname;
 529                if (!remote_find_tracking(kr->remote, &refspec))
 530                        return 0;
 531        }
 532
 533        /* don't delete non-remote-tracking refs */
 534        if (!starts_with(refname, "refs/remotes/")) {
 535                /* advise user how to delete local branches */
 536                if (starts_with(refname, "refs/heads/"))
 537                        string_list_append(branches->skipped,
 538                                           abbrev_branch(refname));
 539                /* silently skip over other non-remote refs */
 540                return 0;
 541        }
 542
 543        string_list_append(branches->branches, refname);
 544
 545        return 0;
 546}
 547
 548struct rename_info {
 549        const char *old_name;
 550        const char *new_name;
 551        struct string_list *remote_branches;
 552};
 553
 554static int read_remote_branches(const char *refname,
 555        const struct object_id *oid, int flags, void *cb_data)
 556{
 557        struct rename_info *rename = cb_data;
 558        struct strbuf buf = STRBUF_INIT;
 559        struct string_list_item *item;
 560        int flag;
 561        const char *symref;
 562
 563        strbuf_addf(&buf, "refs/remotes/%s/", rename->old_name);
 564        if (starts_with(refname, buf.buf)) {
 565                item = string_list_append(rename->remote_branches, xstrdup(refname));
 566                symref = resolve_ref_unsafe(refname, RESOLVE_REF_READING,
 567                                            NULL, &flag);
 568                if (symref && (flag & REF_ISSYMREF))
 569                        item->util = xstrdup(symref);
 570                else
 571                        item->util = NULL;
 572        }
 573        strbuf_release(&buf);
 574
 575        return 0;
 576}
 577
 578static int migrate_file(struct remote *remote)
 579{
 580        struct strbuf buf = STRBUF_INIT;
 581        int i;
 582
 583        strbuf_addf(&buf, "remote.%s.url", remote->name);
 584        for (i = 0; i < remote->url_nr; i++)
 585                git_config_set_multivar(buf.buf, remote->url[i], "^$", 0);
 586        strbuf_reset(&buf);
 587        strbuf_addf(&buf, "remote.%s.push", remote->name);
 588        for (i = 0; i < remote->push_refspec_nr; i++)
 589                git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0);
 590        strbuf_reset(&buf);
 591        strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 592        for (i = 0; i < remote->fetch_refspec_nr; i++)
 593                git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0);
 594        if (remote->origin == REMOTE_REMOTES)
 595                unlink_or_warn(git_path("remotes/%s", remote->name));
 596        else if (remote->origin == REMOTE_BRANCHES)
 597                unlink_or_warn(git_path("branches/%s", remote->name));
 598        strbuf_release(&buf);
 599
 600        return 0;
 601}
 602
 603static int mv(int argc, const char **argv)
 604{
 605        struct option options[] = {
 606                OPT_END()
 607        };
 608        struct remote *oldremote, *newremote;
 609        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT,
 610                old_remote_context = STRBUF_INIT;
 611        struct string_list remote_branches = STRING_LIST_INIT_NODUP;
 612        struct rename_info rename;
 613        int i, refspec_updated = 0;
 614
 615        if (argc != 3)
 616                usage_with_options(builtin_remote_rename_usage, options);
 617
 618        rename.old_name = argv[1];
 619        rename.new_name = argv[2];
 620        rename.remote_branches = &remote_branches;
 621
 622        oldremote = remote_get(rename.old_name);
 623        if (!remote_is_configured(oldremote, 1))
 624                die(_("No such remote: %s"), rename.old_name);
 625
 626        if (!strcmp(rename.old_name, rename.new_name) && oldremote->origin != REMOTE_CONFIG)
 627                return migrate_file(oldremote);
 628
 629        newremote = remote_get(rename.new_name);
 630        if (remote_is_configured(newremote, 1))
 631                die(_("remote %s already exists."), rename.new_name);
 632
 633        strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new_name);
 634        if (!valid_fetch_refspec(buf.buf))
 635                die(_("'%s' is not a valid remote name"), rename.new_name);
 636
 637        strbuf_reset(&buf);
 638        strbuf_addf(&buf, "remote.%s", rename.old_name);
 639        strbuf_addf(&buf2, "remote.%s", rename.new_name);
 640        if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 641                return error(_("Could not rename config section '%s' to '%s'"),
 642                                buf.buf, buf2.buf);
 643
 644        strbuf_reset(&buf);
 645        strbuf_addf(&buf, "remote.%s.fetch", rename.new_name);
 646        git_config_set_multivar(buf.buf, NULL, NULL, 1);
 647        strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old_name);
 648        for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 649                char *ptr;
 650
 651                strbuf_reset(&buf2);
 652                strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 653                ptr = strstr(buf2.buf, old_remote_context.buf);
 654                if (ptr) {
 655                        refspec_updated = 1;
 656                        strbuf_splice(&buf2,
 657                                      ptr-buf2.buf + strlen(":refs/remotes/"),
 658                                      strlen(rename.old_name), rename.new_name,
 659                                      strlen(rename.new_name));
 660                } else
 661                        warning(_("Not updating non-default fetch refspec\n"
 662                                  "\t%s\n"
 663                                  "\tPlease update the configuration manually if necessary."),
 664                                buf2.buf);
 665
 666                git_config_set_multivar(buf.buf, buf2.buf, "^$", 0);
 667        }
 668
 669        read_branches();
 670        for (i = 0; i < branch_list.nr; i++) {
 671                struct string_list_item *item = branch_list.items + i;
 672                struct branch_info *info = item->util;
 673                if (info->remote_name && !strcmp(info->remote_name, rename.old_name)) {
 674                        strbuf_reset(&buf);
 675                        strbuf_addf(&buf, "branch.%s.remote", item->string);
 676                        git_config_set(buf.buf, rename.new_name);
 677                }
 678        }
 679
 680        if (!refspec_updated)
 681                return 0;
 682
 683        /*
 684         * First remove symrefs, then rename the rest, finally create
 685         * the new symrefs.
 686         */
 687        for_each_ref(read_remote_branches, &rename);
 688        for (i = 0; i < remote_branches.nr; i++) {
 689                struct string_list_item *item = remote_branches.items + i;
 690                int flag = 0;
 691                struct object_id oid;
 692
 693                read_ref_full(item->string, RESOLVE_REF_READING, &oid, &flag);
 694                if (!(flag & REF_ISSYMREF))
 695                        continue;
 696                if (delete_ref(NULL, item->string, NULL, REF_NO_DEREF))
 697                        die(_("deleting '%s' failed"), item->string);
 698        }
 699        for (i = 0; i < remote_branches.nr; i++) {
 700                struct string_list_item *item = remote_branches.items + i;
 701
 702                if (item->util)
 703                        continue;
 704                strbuf_reset(&buf);
 705                strbuf_addstr(&buf, item->string);
 706                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old_name),
 707                                rename.new_name, strlen(rename.new_name));
 708                strbuf_reset(&buf2);
 709                strbuf_addf(&buf2, "remote: renamed %s to %s",
 710                                item->string, buf.buf);
 711                if (rename_ref(item->string, buf.buf, buf2.buf))
 712                        die(_("renaming '%s' failed"), item->string);
 713        }
 714        for (i = 0; i < remote_branches.nr; i++) {
 715                struct string_list_item *item = remote_branches.items + i;
 716
 717                if (!item->util)
 718                        continue;
 719                strbuf_reset(&buf);
 720                strbuf_addstr(&buf, item->string);
 721                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old_name),
 722                                rename.new_name, strlen(rename.new_name));
 723                strbuf_reset(&buf2);
 724                strbuf_addstr(&buf2, item->util);
 725                strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old_name),
 726                                rename.new_name, strlen(rename.new_name));
 727                strbuf_reset(&buf3);
 728                strbuf_addf(&buf3, "remote: renamed %s to %s",
 729                                item->string, buf.buf);
 730                if (create_symref(buf.buf, buf2.buf, buf3.buf))
 731                        die(_("creating '%s' failed"), buf.buf);
 732        }
 733        return 0;
 734}
 735
 736static int rm(int argc, const char **argv)
 737{
 738        struct option options[] = {
 739                OPT_END()
 740        };
 741        struct remote *remote;
 742        struct strbuf buf = STRBUF_INIT;
 743        struct known_remotes known_remotes = { NULL, NULL };
 744        struct string_list branches = STRING_LIST_INIT_DUP;
 745        struct string_list skipped = STRING_LIST_INIT_DUP;
 746        struct branches_for_remote cb_data;
 747        int i, result;
 748
 749        memset(&cb_data, 0, sizeof(cb_data));
 750        cb_data.branches = &branches;
 751        cb_data.skipped = &skipped;
 752        cb_data.keep = &known_remotes;
 753
 754        if (argc != 2)
 755                usage_with_options(builtin_remote_rm_usage, options);
 756
 757        remote = remote_get(argv[1]);
 758        if (!remote_is_configured(remote, 1))
 759                die(_("No such remote: %s"), argv[1]);
 760
 761        known_remotes.to_delete = remote;
 762        for_each_remote(add_known_remote, &known_remotes);
 763
 764        read_branches();
 765        for (i = 0; i < branch_list.nr; i++) {
 766                struct string_list_item *item = branch_list.items + i;
 767                struct branch_info *info = item->util;
 768                if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 769                        const char *keys[] = { "remote", "merge", NULL }, **k;
 770                        for (k = keys; *k; k++) {
 771                                strbuf_reset(&buf);
 772                                strbuf_addf(&buf, "branch.%s.%s",
 773                                                item->string, *k);
 774                                result = git_config_set_gently(buf.buf, NULL);
 775                                if (result && result != CONFIG_NOTHING_SET)
 776                                        die(_("could not unset '%s'"), buf.buf);
 777                        }
 778                }
 779        }
 780
 781        /*
 782         * We cannot just pass a function to for_each_ref() which deletes
 783         * the branches one by one, since for_each_ref() relies on cached
 784         * refs, which are invalidated when deleting a branch.
 785         */
 786        cb_data.remote = remote;
 787        result = for_each_ref(add_branch_for_removal, &cb_data);
 788        strbuf_release(&buf);
 789
 790        if (!result)
 791                result = delete_refs("remote: remove", &branches, REF_NO_DEREF);
 792        string_list_clear(&branches, 0);
 793
 794        if (skipped.nr) {
 795                fprintf_ln(stderr,
 796                           Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 797                              "to delete it, use:",
 798                              "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 799                              "to delete them, use:",
 800                              skipped.nr));
 801                for (i = 0; i < skipped.nr; i++)
 802                        fprintf(stderr, "  git branch -d %s\n",
 803                                skipped.items[i].string);
 804        }
 805        string_list_clear(&skipped, 0);
 806
 807        if (!result) {
 808                strbuf_addf(&buf, "remote.%s", remote->name);
 809                if (git_config_rename_section(buf.buf, NULL) < 1)
 810                        return error(_("Could not remove config section '%s'"), buf.buf);
 811        }
 812
 813        return result;
 814}
 815
 816static void clear_push_info(void *util, const char *string)
 817{
 818        struct push_info *info = util;
 819        free(info->dest);
 820        free(info);
 821}
 822
 823static void free_remote_ref_states(struct ref_states *states)
 824{
 825        string_list_clear(&states->new_refs, 0);
 826        string_list_clear(&states->stale, 1);
 827        string_list_clear(&states->tracked, 0);
 828        string_list_clear(&states->heads, 0);
 829        string_list_clear_func(&states->push, clear_push_info);
 830}
 831
 832static int append_ref_to_tracked_list(const char *refname,
 833        const struct object_id *oid, int flags, void *cb_data)
 834{
 835        struct ref_states *states = cb_data;
 836        struct refspec refspec;
 837
 838        if (flags & REF_ISSYMREF)
 839                return 0;
 840
 841        memset(&refspec, 0, sizeof(refspec));
 842        refspec.dst = (char *)refname;
 843        if (!remote_find_tracking(states->remote, &refspec))
 844                string_list_append(&states->tracked, abbrev_branch(refspec.src));
 845
 846        return 0;
 847}
 848
 849static int get_remote_ref_states(const char *name,
 850                                 struct ref_states *states,
 851                                 int query)
 852{
 853        struct transport *transport;
 854        const struct ref *remote_refs;
 855
 856        states->remote = remote_get(name);
 857        if (!states->remote)
 858                return error(_("No such remote: %s"), name);
 859
 860        read_branches();
 861
 862        if (query) {
 863                transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 864                        states->remote->url[0] : NULL);
 865                remote_refs = transport_get_remote_refs(transport);
 866                transport_disconnect(transport);
 867
 868                states->queried = 1;
 869                if (query & GET_REF_STATES)
 870                        get_ref_states(remote_refs, states);
 871                if (query & GET_HEAD_NAMES)
 872                        get_head_names(remote_refs, states);
 873                if (query & GET_PUSH_REF_STATES)
 874                        get_push_ref_states(remote_refs, states);
 875        } else {
 876                for_each_ref(append_ref_to_tracked_list, states);
 877                string_list_sort(&states->tracked);
 878                get_push_ref_states_noquery(states);
 879        }
 880
 881        return 0;
 882}
 883
 884struct show_info {
 885        struct string_list *list;
 886        struct ref_states *states;
 887        int width, width2;
 888        int any_rebase;
 889};
 890
 891static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 892{
 893        struct show_info *info = cb_data;
 894        int n = strlen(item->string);
 895        if (n > info->width)
 896                info->width = n;
 897        string_list_insert(info->list, item->string);
 898        return 0;
 899}
 900
 901static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 902{
 903        struct show_info *info = cb_data;
 904        struct ref_states *states = info->states;
 905        const char *name = item->string;
 906
 907        if (states->queried) {
 908                const char *fmt = "%s";
 909                const char *arg = "";
 910                if (string_list_has_string(&states->new_refs, name)) {
 911                        fmt = _(" new (next fetch will store in remotes/%s)");
 912                        arg = states->remote->name;
 913                } else if (string_list_has_string(&states->tracked, name))
 914                        arg = _(" tracked");
 915                else if (string_list_has_string(&states->stale, name))
 916                        arg = _(" stale (use 'git remote prune' to remove)");
 917                else
 918                        arg = _(" ???");
 919                printf("    %-*s", info->width, name);
 920                printf(fmt, arg);
 921                printf("\n");
 922        } else
 923                printf("    %s\n", name);
 924
 925        return 0;
 926}
 927
 928static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 929{
 930        struct show_info *show_info = cb_data;
 931        struct ref_states *states = show_info->states;
 932        struct branch_info *branch_info = branch_item->util;
 933        struct string_list_item *item;
 934        int n;
 935
 936        if (!branch_info->merge.nr || !branch_info->remote_name ||
 937            strcmp(states->remote->name, branch_info->remote_name))
 938                return 0;
 939        if ((n = strlen(branch_item->string)) > show_info->width)
 940                show_info->width = n;
 941        if (branch_info->rebase)
 942                show_info->any_rebase = 1;
 943
 944        item = string_list_insert(show_info->list, branch_item->string);
 945        item->util = branch_info;
 946
 947        return 0;
 948}
 949
 950static int show_local_info_item(struct string_list_item *item, void *cb_data)
 951{
 952        struct show_info *show_info = cb_data;
 953        struct branch_info *branch_info = item->util;
 954        struct string_list *merge = &branch_info->merge;
 955        int width = show_info->width + 4;
 956        int i;
 957
 958        if (branch_info->rebase && branch_info->merge.nr > 1) {
 959                error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"),
 960                        item->string);
 961                return 0;
 962        }
 963
 964        printf("    %-*s ", show_info->width, item->string);
 965        if (branch_info->rebase) {
 966                printf_ln(branch_info->rebase == INTERACTIVE_REBASE
 967                          ? _("rebases interactively onto remote %s")
 968                          : _("rebases onto remote %s"), merge->items[0].string);
 969                return 0;
 970        } else if (show_info->any_rebase) {
 971                printf_ln(_(" merges with remote %s"), merge->items[0].string);
 972                width++;
 973        } else {
 974                printf_ln(_("merges with remote %s"), merge->items[0].string);
 975        }
 976        for (i = 1; i < merge->nr; i++)
 977                printf(_("%-*s    and with remote %s\n"), width, "",
 978                       merge->items[i].string);
 979
 980        return 0;
 981}
 982
 983static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
 984{
 985        struct show_info *show_info = cb_data;
 986        struct push_info *push_info = push_item->util;
 987        struct string_list_item *item;
 988        int n;
 989        if ((n = strlen(push_item->string)) > show_info->width)
 990                show_info->width = n;
 991        if ((n = strlen(push_info->dest)) > show_info->width2)
 992                show_info->width2 = n;
 993        item = string_list_append(show_info->list, push_item->string);
 994        item->util = push_item->util;
 995        return 0;
 996}
 997
 998/*
 999 * Sorting comparison for a string list that has push_info
1000 * structs in its util field
1001 */
1002static int cmp_string_with_push(const void *va, const void *vb)
1003{
1004        const struct string_list_item *a = va;
1005        const struct string_list_item *b = vb;
1006        const struct push_info *a_push = a->util;
1007        const struct push_info *b_push = b->util;
1008        int cmp = strcmp(a->string, b->string);
1009        return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1010}
1011
1012static int show_push_info_item(struct string_list_item *item, void *cb_data)
1013{
1014        struct show_info *show_info = cb_data;
1015        struct push_info *push_info = item->util;
1016        const char *src = item->string, *status = NULL;
1017
1018        switch (push_info->status) {
1019        case PUSH_STATUS_CREATE:
1020                status = _("create");
1021                break;
1022        case PUSH_STATUS_DELETE:
1023                status = _("delete");
1024                src = _("(none)");
1025                break;
1026        case PUSH_STATUS_UPTODATE:
1027                status = _("up to date");
1028                break;
1029        case PUSH_STATUS_FASTFORWARD:
1030                status = _("fast-forwardable");
1031                break;
1032        case PUSH_STATUS_OUTOFDATE:
1033                status = _("local out of date");
1034                break;
1035        case PUSH_STATUS_NOTQUERIED:
1036                break;
1037        }
1038        if (status) {
1039                if (push_info->forced)
1040                        printf_ln(_("    %-*s forces to %-*s (%s)"), show_info->width, src,
1041                               show_info->width2, push_info->dest, status);
1042                else
1043                        printf_ln(_("    %-*s pushes to %-*s (%s)"), show_info->width, src,
1044                               show_info->width2, push_info->dest, status);
1045        } else {
1046                if (push_info->forced)
1047                        printf_ln(_("    %-*s forces to %s"), show_info->width, src,
1048                               push_info->dest);
1049                else
1050                        printf_ln(_("    %-*s pushes to %s"), show_info->width, src,
1051                               push_info->dest);
1052        }
1053        return 0;
1054}
1055
1056static int get_one_entry(struct remote *remote, void *priv)
1057{
1058        struct string_list *list = priv;
1059        struct strbuf url_buf = STRBUF_INIT;
1060        const char **url;
1061        int i, url_nr;
1062
1063        if (remote->url_nr > 0) {
1064                strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1065                string_list_append(list, remote->name)->util =
1066                                strbuf_detach(&url_buf, NULL);
1067        } else
1068                string_list_append(list, remote->name)->util = NULL;
1069        if (remote->pushurl_nr) {
1070                url = remote->pushurl;
1071                url_nr = remote->pushurl_nr;
1072        } else {
1073                url = remote->url;
1074                url_nr = remote->url_nr;
1075        }
1076        for (i = 0; i < url_nr; i++)
1077        {
1078                strbuf_addf(&url_buf, "%s (push)", url[i]);
1079                string_list_append(list, remote->name)->util =
1080                                strbuf_detach(&url_buf, NULL);
1081        }
1082
1083        return 0;
1084}
1085
1086static int show_all(void)
1087{
1088        struct string_list list = STRING_LIST_INIT_NODUP;
1089        int result;
1090
1091        list.strdup_strings = 1;
1092        result = for_each_remote(get_one_entry, &list);
1093
1094        if (!result) {
1095                int i;
1096
1097                string_list_sort(&list);
1098                for (i = 0; i < list.nr; i++) {
1099                        struct string_list_item *item = list.items + i;
1100                        if (verbose)
1101                                printf("%s\t%s\n", item->string,
1102                                        item->util ? (const char *)item->util : "");
1103                        else {
1104                                if (i && !strcmp((item - 1)->string, item->string))
1105                                        continue;
1106                                printf("%s\n", item->string);
1107                        }
1108                }
1109        }
1110        string_list_clear(&list, 1);
1111        return result;
1112}
1113
1114static int show(int argc, const char **argv)
1115{
1116        int no_query = 0, result = 0, query_flag = 0;
1117        struct option options[] = {
1118                OPT_BOOL('n', NULL, &no_query, N_("do not query remotes")),
1119                OPT_END()
1120        };
1121        struct ref_states states;
1122        struct string_list info_list = STRING_LIST_INIT_NODUP;
1123        struct show_info info;
1124
1125        argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1126                             0);
1127
1128        if (argc < 1)
1129                return show_all();
1130
1131        if (!no_query)
1132                query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1133
1134        memset(&states, 0, sizeof(states));
1135        memset(&info, 0, sizeof(info));
1136        info.states = &states;
1137        info.list = &info_list;
1138        for (; argc; argc--, argv++) {
1139                int i;
1140                const char **url;
1141                int url_nr;
1142
1143                get_remote_ref_states(*argv, &states, query_flag);
1144
1145                printf_ln(_("* remote %s"), *argv);
1146                printf_ln(_("  Fetch URL: %s"), states.remote->url_nr > 0 ?
1147                       states.remote->url[0] : _("(no URL)"));
1148                if (states.remote->pushurl_nr) {
1149                        url = states.remote->pushurl;
1150                        url_nr = states.remote->pushurl_nr;
1151                } else {
1152                        url = states.remote->url;
1153                        url_nr = states.remote->url_nr;
1154                }
1155                for (i = 0; i < url_nr; i++)
1156                        /*
1157                         * TRANSLATORS: the colon ':' should align
1158                         * with the one in " Fetch URL: %s"
1159                         * translation.
1160                         */
1161                        printf_ln(_("  Push  URL: %s"), url[i]);
1162                if (!i)
1163                        printf_ln(_("  Push  URL: %s"), _("(no URL)"));
1164                if (no_query)
1165                        printf_ln(_("  HEAD branch: %s"), _("(not queried)"));
1166                else if (!states.heads.nr)
1167                        printf_ln(_("  HEAD branch: %s"), _("(unknown)"));
1168                else if (states.heads.nr == 1)
1169                        printf_ln(_("  HEAD branch: %s"), states.heads.items[0].string);
1170                else {
1171                        printf(_("  HEAD branch (remote HEAD is ambiguous,"
1172                                 " may be one of the following):\n"));
1173                        for (i = 0; i < states.heads.nr; i++)
1174                                printf("    %s\n", states.heads.items[i].string);
1175                }
1176
1177                /* remote branch info */
1178                info.width = 0;
1179                for_each_string_list(&states.new_refs, add_remote_to_show_info, &info);
1180                for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1181                for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1182                if (info.list->nr)
1183                        printf_ln(Q_("  Remote branch:%s",
1184                                     "  Remote branches:%s",
1185                                     info.list->nr),
1186                                  no_query ? _(" (status not queried)") : "");
1187                for_each_string_list(info.list, show_remote_info_item, &info);
1188                string_list_clear(info.list, 0);
1189
1190                /* git pull info */
1191                info.width = 0;
1192                info.any_rebase = 0;
1193                for_each_string_list(&branch_list, add_local_to_show_info, &info);
1194                if (info.list->nr)
1195                        printf_ln(Q_("  Local branch configured for 'git pull':",
1196                                     "  Local branches configured for 'git pull':",
1197                                     info.list->nr));
1198                for_each_string_list(info.list, show_local_info_item, &info);
1199                string_list_clear(info.list, 0);
1200
1201                /* git push info */
1202                if (states.remote->mirror)
1203                        printf_ln(_("  Local refs will be mirrored by 'git push'"));
1204
1205                info.width = info.width2 = 0;
1206                for_each_string_list(&states.push, add_push_to_show_info, &info);
1207                QSORT(info.list->items, info.list->nr, cmp_string_with_push);
1208                if (info.list->nr)
1209                        printf_ln(Q_("  Local ref configured for 'git push'%s:",
1210                                     "  Local refs configured for 'git push'%s:",
1211                                     info.list->nr),
1212                                  no_query ? _(" (status not queried)") : "");
1213                for_each_string_list(info.list, show_push_info_item, &info);
1214                string_list_clear(info.list, 0);
1215
1216                free_remote_ref_states(&states);
1217        }
1218
1219        return result;
1220}
1221
1222static int set_head(int argc, const char **argv)
1223{
1224        int i, opt_a = 0, opt_d = 0, result = 0;
1225        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1226        char *head_name = NULL;
1227
1228        struct option options[] = {
1229                OPT_BOOL('a', "auto", &opt_a,
1230                         N_("set refs/remotes/<name>/HEAD according to remote")),
1231                OPT_BOOL('d', "delete", &opt_d,
1232                         N_("delete refs/remotes/<name>/HEAD")),
1233                OPT_END()
1234        };
1235        argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1236                             0);
1237        if (argc)
1238                strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1239
1240        if (!opt_a && !opt_d && argc == 2) {
1241                head_name = xstrdup(argv[1]);
1242        } else if (opt_a && !opt_d && argc == 1) {
1243                struct ref_states states;
1244                memset(&states, 0, sizeof(states));
1245                get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1246                if (!states.heads.nr)
1247                        result |= error(_("Cannot determine remote HEAD"));
1248                else if (states.heads.nr > 1) {
1249                        result |= error(_("Multiple remote HEAD branches. "
1250                                          "Please choose one explicitly with:"));
1251                        for (i = 0; i < states.heads.nr; i++)
1252                                fprintf(stderr, "  git remote set-head %s %s\n",
1253                                        argv[0], states.heads.items[i].string);
1254                } else
1255                        head_name = xstrdup(states.heads.items[0].string);
1256                free_remote_ref_states(&states);
1257        } else if (opt_d && !opt_a && argc == 1) {
1258                if (delete_ref(NULL, buf.buf, NULL, REF_NO_DEREF))
1259                        result |= error(_("Could not delete %s"), buf.buf);
1260        } else
1261                usage_with_options(builtin_remote_sethead_usage, options);
1262
1263        if (head_name) {
1264                strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1265                /* make sure it's valid */
1266                if (!ref_exists(buf2.buf))
1267                        result |= error(_("Not a valid ref: %s"), buf2.buf);
1268                else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1269                        result |= error(_("Could not setup %s"), buf.buf);
1270                if (opt_a)
1271                        printf("%s/HEAD set to %s\n", argv[0], head_name);
1272                free(head_name);
1273        }
1274
1275        strbuf_release(&buf);
1276        strbuf_release(&buf2);
1277        return result;
1278}
1279
1280static int prune_remote(const char *remote, int dry_run)
1281{
1282        int result = 0;
1283        struct ref_states states;
1284        struct string_list refs_to_prune = STRING_LIST_INIT_NODUP;
1285        struct string_list_item *item;
1286        const char *dangling_msg = dry_run
1287                ? _(" %s will become dangling!")
1288                : _(" %s has become dangling!");
1289
1290        memset(&states, 0, sizeof(states));
1291        get_remote_ref_states(remote, &states, GET_REF_STATES);
1292
1293        if (!states.stale.nr) {
1294                free_remote_ref_states(&states);
1295                return 0;
1296        }
1297
1298        printf_ln(_("Pruning %s"), remote);
1299        printf_ln(_("URL: %s"),
1300                  states.remote->url_nr
1301                  ? states.remote->url[0]
1302                  : _("(no URL)"));
1303
1304        for_each_string_list_item(item, &states.stale)
1305                string_list_append(&refs_to_prune, item->util);
1306        string_list_sort(&refs_to_prune);
1307
1308        if (!dry_run)
1309                result |= delete_refs("remote: prune", &refs_to_prune, 0);
1310
1311        for_each_string_list_item(item, &states.stale) {
1312                const char *refname = item->util;
1313
1314                if (dry_run)
1315                        printf_ln(_(" * [would prune] %s"),
1316                               abbrev_ref(refname, "refs/remotes/"));
1317                else
1318                        printf_ln(_(" * [pruned] %s"),
1319                               abbrev_ref(refname, "refs/remotes/"));
1320        }
1321
1322        warn_dangling_symrefs(stdout, dangling_msg, &refs_to_prune);
1323
1324        string_list_clear(&refs_to_prune, 0);
1325        free_remote_ref_states(&states);
1326        return result;
1327}
1328
1329static int prune(int argc, const char **argv)
1330{
1331        int dry_run = 0, result = 0;
1332        struct option options[] = {
1333                OPT__DRY_RUN(&dry_run, N_("dry run")),
1334                OPT_END()
1335        };
1336
1337        argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1338                             0);
1339
1340        if (argc < 1)
1341                usage_with_options(builtin_remote_prune_usage, options);
1342
1343        for (; argc; argc--, argv++)
1344                result |= prune_remote(*argv, dry_run);
1345
1346        return result;
1347}
1348
1349static int get_remote_default(const char *key, const char *value, void *priv)
1350{
1351        if (strcmp(key, "remotes.default") == 0) {
1352                int *found = priv;
1353                *found = 1;
1354        }
1355        return 0;
1356}
1357
1358static int update(int argc, const char **argv)
1359{
1360        int i, prune = -1;
1361        struct option options[] = {
1362                OPT_BOOL('p', "prune", &prune,
1363                         N_("prune remotes after fetching")),
1364                OPT_END()
1365        };
1366        struct argv_array fetch_argv = ARGV_ARRAY_INIT;
1367        int default_defined = 0;
1368        int retval;
1369
1370        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1371                             PARSE_OPT_KEEP_ARGV0);
1372
1373        argv_array_push(&fetch_argv, "fetch");
1374
1375        if (prune != -1)
1376                argv_array_push(&fetch_argv, prune ? "--prune" : "--no-prune");
1377        if (verbose)
1378                argv_array_push(&fetch_argv, "-v");
1379        argv_array_push(&fetch_argv, "--multiple");
1380        if (argc < 2)
1381                argv_array_push(&fetch_argv, "default");
1382        for (i = 1; i < argc; i++)
1383                argv_array_push(&fetch_argv, argv[i]);
1384
1385        if (strcmp(fetch_argv.argv[fetch_argv.argc-1], "default") == 0) {
1386                git_config(get_remote_default, &default_defined);
1387                if (!default_defined) {
1388                        argv_array_pop(&fetch_argv);
1389                        argv_array_push(&fetch_argv, "--all");
1390                }
1391        }
1392
1393        retval = run_command_v_opt(fetch_argv.argv, RUN_GIT_CMD);
1394        argv_array_clear(&fetch_argv);
1395        return retval;
1396}
1397
1398static int remove_all_fetch_refspecs(const char *remote, const char *key)
1399{
1400        return git_config_set_multivar_gently(key, NULL, NULL, 1);
1401}
1402
1403static void add_branches(struct remote *remote, const char **branches,
1404                         const char *key)
1405{
1406        const char *remotename = remote->name;
1407        int mirror = remote->mirror;
1408        struct strbuf refspec = STRBUF_INIT;
1409
1410        for (; *branches; branches++)
1411                add_branch(key, *branches, remotename, mirror, &refspec);
1412
1413        strbuf_release(&refspec);
1414}
1415
1416static int set_remote_branches(const char *remotename, const char **branches,
1417                                int add_mode)
1418{
1419        struct strbuf key = STRBUF_INIT;
1420        struct remote *remote;
1421
1422        strbuf_addf(&key, "remote.%s.fetch", remotename);
1423
1424        remote = remote_get(remotename);
1425        if (!remote_is_configured(remote, 1))
1426                die(_("No such remote '%s'"), remotename);
1427
1428        if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
1429                strbuf_release(&key);
1430                return 1;
1431        }
1432        add_branches(remote, branches, key.buf);
1433
1434        strbuf_release(&key);
1435        return 0;
1436}
1437
1438static int set_branches(int argc, const char **argv)
1439{
1440        int add_mode = 0;
1441        struct option options[] = {
1442                OPT_BOOL('\0', "add", &add_mode, N_("add branch")),
1443                OPT_END()
1444        };
1445
1446        argc = parse_options(argc, argv, NULL, options,
1447                             builtin_remote_setbranches_usage, 0);
1448        if (argc == 0) {
1449                error(_("no remote specified"));
1450                usage_with_options(builtin_remote_setbranches_usage, options);
1451        }
1452        argv[argc] = NULL;
1453
1454        return set_remote_branches(argv[0], argv + 1, add_mode);
1455}
1456
1457static int get_url(int argc, const char **argv)
1458{
1459        int i, push_mode = 0, all_mode = 0;
1460        const char *remotename = NULL;
1461        struct remote *remote;
1462        const char **url;
1463        int url_nr;
1464        struct option options[] = {
1465                OPT_BOOL('\0', "push", &push_mode,
1466                         N_("query push URLs rather than fetch URLs")),
1467                OPT_BOOL('\0', "all", &all_mode,
1468                         N_("return all URLs")),
1469                OPT_END()
1470        };
1471        argc = parse_options(argc, argv, NULL, options, builtin_remote_geturl_usage, 0);
1472
1473        if (argc != 1)
1474                usage_with_options(builtin_remote_geturl_usage, options);
1475
1476        remotename = argv[0];
1477
1478        remote = remote_get(remotename);
1479        if (!remote_is_configured(remote, 1))
1480                die(_("No such remote '%s'"), remotename);
1481
1482        url_nr = 0;
1483        if (push_mode) {
1484                url = remote->pushurl;
1485                url_nr = remote->pushurl_nr;
1486        }
1487        /* else fetch mode */
1488
1489        /* Use the fetch URL when no push URLs were found or requested. */
1490        if (!url_nr) {
1491                url = remote->url;
1492                url_nr = remote->url_nr;
1493        }
1494
1495        if (!url_nr)
1496                die(_("no URLs configured for remote '%s'"), remotename);
1497
1498        if (all_mode) {
1499                for (i = 0; i < url_nr; i++)
1500                        printf_ln("%s", url[i]);
1501        } else {
1502                printf_ln("%s", *url);
1503        }
1504
1505        return 0;
1506}
1507
1508static int set_url(int argc, const char **argv)
1509{
1510        int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1511        int matches = 0, negative_matches = 0;
1512        const char *remotename = NULL;
1513        const char *newurl = NULL;
1514        const char *oldurl = NULL;
1515        struct remote *remote;
1516        regex_t old_regex;
1517        const char **urlset;
1518        int urlset_nr;
1519        struct strbuf name_buf = STRBUF_INIT;
1520        struct option options[] = {
1521                OPT_BOOL('\0', "push", &push_mode,
1522                         N_("manipulate push URLs")),
1523                OPT_BOOL('\0', "add", &add_mode,
1524                         N_("add URL")),
1525                OPT_BOOL('\0', "delete", &delete_mode,
1526                            N_("delete URLs")),
1527                OPT_END()
1528        };
1529        argc = parse_options(argc, argv, NULL, options, builtin_remote_seturl_usage,
1530                             PARSE_OPT_KEEP_ARGV0);
1531
1532        if (add_mode && delete_mode)
1533                die(_("--add --delete doesn't make sense"));
1534
1535        if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1536                usage_with_options(builtin_remote_seturl_usage, options);
1537
1538        remotename = argv[1];
1539        newurl = argv[2];
1540        if (argc > 3)
1541                oldurl = argv[3];
1542
1543        if (delete_mode)
1544                oldurl = newurl;
1545
1546        remote = remote_get(remotename);
1547        if (!remote_is_configured(remote, 1))
1548                die(_("No such remote '%s'"), remotename);
1549
1550        if (push_mode) {
1551                strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1552                urlset = remote->pushurl;
1553                urlset_nr = remote->pushurl_nr;
1554        } else {
1555                strbuf_addf(&name_buf, "remote.%s.url", remotename);
1556                urlset = remote->url;
1557                urlset_nr = remote->url_nr;
1558        }
1559
1560        /* Special cases that add new entry. */
1561        if ((!oldurl && !delete_mode) || add_mode) {
1562                if (add_mode)
1563                        git_config_set_multivar(name_buf.buf, newurl,
1564                                                       "^$", 0);
1565                else
1566                        git_config_set(name_buf.buf, newurl);
1567                goto out;
1568        }
1569
1570        /* Old URL specified. Demand that one matches. */
1571        if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1572                die(_("Invalid old URL pattern: %s"), oldurl);
1573
1574        for (i = 0; i < urlset_nr; i++)
1575                if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1576                        matches++;
1577                else
1578                        negative_matches++;
1579        if (!delete_mode && !matches)
1580                die(_("No such URL found: %s"), oldurl);
1581        if (delete_mode && !negative_matches && !push_mode)
1582                die(_("Will not delete all non-push URLs"));
1583
1584        regfree(&old_regex);
1585
1586        if (!delete_mode)
1587                git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1588        else
1589                git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1590out:
1591        strbuf_release(&name_buf);
1592        return 0;
1593}
1594
1595int cmd_remote(int argc, const char **argv, const char *prefix)
1596{
1597        struct option options[] = {
1598                OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")),
1599                OPT_END()
1600        };
1601        int result;
1602
1603        argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1604                PARSE_OPT_STOP_AT_NON_OPTION);
1605
1606        if (argc < 1)
1607                result = show_all();
1608        else if (!strcmp(argv[0], "add"))
1609                result = add(argc, argv);
1610        else if (!strcmp(argv[0], "rename"))
1611                result = mv(argc, argv);
1612        else if (!strcmp(argv[0], "rm") || !strcmp(argv[0], "remove"))
1613                result = rm(argc, argv);
1614        else if (!strcmp(argv[0], "set-head"))
1615                result = set_head(argc, argv);
1616        else if (!strcmp(argv[0], "set-branches"))
1617                result = set_branches(argc, argv);
1618        else if (!strcmp(argv[0], "get-url"))
1619                result = get_url(argc, argv);
1620        else if (!strcmp(argv[0], "set-url"))
1621                result = set_url(argc, argv);
1622        else if (!strcmp(argv[0], "show"))
1623                result = show(argc, argv);
1624        else if (!strcmp(argv[0], "prune"))
1625                result = prune(argc, argv);
1626        else if (!strcmp(argv[0], "update"))
1627                result = update(argc, argv);
1628        else {
1629                error(_("Unknown subcommand: %s"), argv[0]);
1630                usage_with_options(builtin_remote_usage, options);
1631        }
1632
1633        return result ? 1 : 0;
1634}