Andrew's git / gitweb.git / builtin-remote.c
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builtin-remote.con commit rerere: don't segfault on failure to open rr-cache (e5f5917)
   1#include "cache.h"
   2#include "parse-options.h"
   3#include "transport.h"
   4#include "remote.h"
   5#include "string-list.h"
   6#include "strbuf.h"
   7#include "run-command.h"
   8#include "refs.h"
   9
  10static const char * const builtin_remote_usage[] = {
  11        "git remote [-v | --verbose]",
  12        "git remote add [-t <branch>] [-m <master>] [-f] [--mirror] <name> <url>",
  13        "git remote rename <old> <new>",
  14        "git remote rm <name>",
  15        "git remote set-head <name> (-a | -d | <branch>)",
  16        "git remote [-v | --verbose] show [-n] <name>",
  17        "git remote prune [-n | --dry-run] <name>",
  18        "git remote [-v | --verbose] update [-p | --prune] [group | remote]",
  19        NULL
  20};
  21
  22static const char * const builtin_remote_add_usage[] = {
  23        "git remote add [<options>] <name> <url>",
  24        NULL
  25};
  26
  27static const char * const builtin_remote_rename_usage[] = {
  28        "git remote rename <old> <new>",
  29        NULL
  30};
  31
  32static const char * const builtin_remote_rm_usage[] = {
  33        "git remote rm <name>",
  34        NULL
  35};
  36
  37static const char * const builtin_remote_sethead_usage[] = {
  38        "git remote set-head <name> (-a | -d | <branch>])",
  39        NULL
  40};
  41
  42static const char * const builtin_remote_show_usage[] = {
  43        "git remote show [<options>] <name>",
  44        NULL
  45};
  46
  47static const char * const builtin_remote_prune_usage[] = {
  48        "git remote prune [<options>] <name>",
  49        NULL
  50};
  51
  52static const char * const builtin_remote_update_usage[] = {
  53        "git remote update [<options>] [<group> | <remote>]...",
  54        NULL
  55};
  56
  57#define GET_REF_STATES (1<<0)
  58#define GET_HEAD_NAMES (1<<1)
  59#define GET_PUSH_REF_STATES (1<<2)
  60
  61static int verbose;
  62
  63static int show_all(void);
  64static int prune_remote(const char *remote, int dry_run);
  65
  66static inline int postfixcmp(const char *string, const char *postfix)
  67{
  68        int len1 = strlen(string), len2 = strlen(postfix);
  69        if (len1 < len2)
  70                return 1;
  71        return strcmp(string + len1 - len2, postfix);
  72}
  73
  74static int opt_parse_track(const struct option *opt, const char *arg, int not)
  75{
  76        struct string_list *list = opt->value;
  77        if (not)
  78                string_list_clear(list, 0);
  79        else
  80                string_list_append(arg, list);
  81        return 0;
  82}
  83
  84static int fetch_remote(const char *name)
  85{
  86        const char *argv[] = { "fetch", name, NULL, NULL };
  87        if (verbose) {
  88                argv[1] = "-v";
  89                argv[2] = name;
  90        }
  91        printf("Updating %s\n", name);
  92        if (run_command_v_opt(argv, RUN_GIT_CMD))
  93                return error("Could not fetch %s", name);
  94        return 0;
  95}
  96
  97static int add(int argc, const char **argv)
  98{
  99        int fetch = 0, mirror = 0;
 100        struct string_list track = { NULL, 0, 0 };
 101        const char *master = NULL;
 102        struct remote *remote;
 103        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
 104        const char *name, *url;
 105        int i;
 106
 107        struct option options[] = {
 108                OPT_BOOLEAN('f', "fetch", &fetch, "fetch the remote branches"),
 109                OPT_CALLBACK('t', "track", &track, "branch",
 110                        "branch(es) to track", opt_parse_track),
 111                OPT_STRING('m', "master", &master, "branch", "master branch"),
 112                OPT_BOOLEAN(0, "mirror", &mirror, "no separate remotes"),
 113                OPT_END()
 114        };
 115
 116        argc = parse_options(argc, argv, NULL, options, builtin_remote_add_usage,
 117                             0);
 118
 119        if (argc < 2)
 120                usage_with_options(builtin_remote_add_usage, options);
 121
 122        name = argv[0];
 123        url = argv[1];
 124
 125        remote = remote_get(name);
 126        if (remote && (remote->url_nr > 1 || strcmp(name, remote->url[0]) ||
 127                        remote->fetch_refspec_nr))
 128                die("remote %s already exists.", name);
 129
 130        strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
 131        if (!valid_fetch_refspec(buf2.buf))
 132                die("'%s' is not a valid remote name", name);
 133
 134        strbuf_addf(&buf, "remote.%s.url", name);
 135        if (git_config_set(buf.buf, url))
 136                return 1;
 137
 138        strbuf_reset(&buf);
 139        strbuf_addf(&buf, "remote.%s.fetch", name);
 140
 141        if (track.nr == 0)
 142                string_list_append("*", &track);
 143        for (i = 0; i < track.nr; i++) {
 144                struct string_list_item *item = track.items + i;
 145
 146                strbuf_reset(&buf2);
 147                strbuf_addch(&buf2, '+');
 148                if (mirror)
 149                        strbuf_addf(&buf2, "refs/%s:refs/%s",
 150                                        item->string, item->string);
 151                else
 152                        strbuf_addf(&buf2, "refs/heads/%s:refs/remotes/%s/%s",
 153                                        item->string, name, item->string);
 154                if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 155                        return 1;
 156        }
 157
 158        if (mirror) {
 159                strbuf_reset(&buf);
 160                strbuf_addf(&buf, "remote.%s.mirror", name);
 161                if (git_config_set(buf.buf, "true"))
 162                        return 1;
 163        }
 164
 165        if (fetch && fetch_remote(name))
 166                return 1;
 167
 168        if (master) {
 169                strbuf_reset(&buf);
 170                strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
 171
 172                strbuf_reset(&buf2);
 173                strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
 174
 175                if (create_symref(buf.buf, buf2.buf, "remote add"))
 176                        return error("Could not setup master '%s'", master);
 177        }
 178
 179        strbuf_release(&buf);
 180        strbuf_release(&buf2);
 181        string_list_clear(&track, 0);
 182
 183        return 0;
 184}
 185
 186struct branch_info {
 187        char *remote_name;
 188        struct string_list merge;
 189        int rebase;
 190};
 191
 192static struct string_list branch_list;
 193
 194static const char *abbrev_ref(const char *name, const char *prefix)
 195{
 196        const char *abbrev = skip_prefix(name, prefix);
 197        if (abbrev)
 198                return abbrev;
 199        return name;
 200}
 201#define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 202
 203static int config_read_branches(const char *key, const char *value, void *cb)
 204{
 205        if (!prefixcmp(key, "branch.")) {
 206                const char *orig_key = key;
 207                char *name;
 208                struct string_list_item *item;
 209                struct branch_info *info;
 210                enum { REMOTE, MERGE, REBASE } type;
 211
 212                key += 7;
 213                if (!postfixcmp(key, ".remote")) {
 214                        name = xstrndup(key, strlen(key) - 7);
 215                        type = REMOTE;
 216                } else if (!postfixcmp(key, ".merge")) {
 217                        name = xstrndup(key, strlen(key) - 6);
 218                        type = MERGE;
 219                } else if (!postfixcmp(key, ".rebase")) {
 220                        name = xstrndup(key, strlen(key) - 7);
 221                        type = REBASE;
 222                } else
 223                        return 0;
 224
 225                item = string_list_insert(name, &branch_list);
 226
 227                if (!item->util)
 228                        item->util = xcalloc(sizeof(struct branch_info), 1);
 229                info = item->util;
 230                if (type == REMOTE) {
 231                        if (info->remote_name)
 232                                warning("more than one %s", orig_key);
 233                        info->remote_name = xstrdup(value);
 234                } else if (type == MERGE) {
 235                        char *space = strchr(value, ' ');
 236                        value = abbrev_branch(value);
 237                        while (space) {
 238                                char *merge;
 239                                merge = xstrndup(value, space - value);
 240                                string_list_append(merge, &info->merge);
 241                                value = abbrev_branch(space + 1);
 242                                space = strchr(value, ' ');
 243                        }
 244                        string_list_append(xstrdup(value), &info->merge);
 245                } else
 246                        info->rebase = git_config_bool(orig_key, value);
 247        }
 248        return 0;
 249}
 250
 251static void read_branches(void)
 252{
 253        if (branch_list.nr)
 254                return;
 255        git_config(config_read_branches, NULL);
 256}
 257
 258struct ref_states {
 259        struct remote *remote;
 260        struct string_list new, stale, tracked, heads, push;
 261        int queried;
 262};
 263
 264static int handle_one_branch(const char *refname,
 265        const unsigned char *sha1, int flags, void *cb_data)
 266{
 267        struct ref_states *states = cb_data;
 268        struct refspec refspec;
 269
 270        memset(&refspec, 0, sizeof(refspec));
 271        refspec.dst = (char *)refname;
 272        if (!remote_find_tracking(states->remote, &refspec)) {
 273                struct string_list_item *item;
 274                const char *name = abbrev_branch(refspec.src);
 275                /* symbolic refs pointing nowhere were handled already */
 276                if ((flags & REF_ISSYMREF) ||
 277                    string_list_has_string(&states->tracked, name) ||
 278                    string_list_has_string(&states->new, name))
 279                        return 0;
 280                item = string_list_append(name, &states->stale);
 281                item->util = xstrdup(refname);
 282        }
 283        return 0;
 284}
 285
 286static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 287{
 288        struct ref *fetch_map = NULL, **tail = &fetch_map;
 289        struct ref *ref;
 290        int i;
 291
 292        for (i = 0; i < states->remote->fetch_refspec_nr; i++)
 293                if (get_fetch_map(remote_refs, states->remote->fetch + i, &tail, 1))
 294                        die("Could not get fetch map for refspec %s",
 295                                states->remote->fetch_refspec[i]);
 296
 297        states->new.strdup_strings = states->tracked.strdup_strings = 1;
 298        for (ref = fetch_map; ref; ref = ref->next) {
 299                unsigned char sha1[20];
 300                if (!ref->peer_ref || read_ref(ref->peer_ref->name, sha1))
 301                        string_list_append(abbrev_branch(ref->name), &states->new);
 302                else
 303                        string_list_append(abbrev_branch(ref->name), &states->tracked);
 304        }
 305        free_refs(fetch_map);
 306
 307        sort_string_list(&states->new);
 308        sort_string_list(&states->tracked);
 309        for_each_ref(handle_one_branch, states);
 310        sort_string_list(&states->stale);
 311
 312        return 0;
 313}
 314
 315struct push_info {
 316        char *dest;
 317        int forced;
 318        enum {
 319                PUSH_STATUS_CREATE = 0,
 320                PUSH_STATUS_DELETE,
 321                PUSH_STATUS_UPTODATE,
 322                PUSH_STATUS_FASTFORWARD,
 323                PUSH_STATUS_OUTOFDATE,
 324                PUSH_STATUS_NOTQUERIED,
 325        } status;
 326};
 327
 328static int get_push_ref_states(const struct ref *remote_refs,
 329        struct ref_states *states)
 330{
 331        struct remote *remote = states->remote;
 332        struct ref *ref, *local_refs, *push_map;
 333        if (remote->mirror)
 334                return 0;
 335
 336        local_refs = get_local_heads();
 337        push_map = copy_ref_list(remote_refs);
 338
 339        match_refs(local_refs, &push_map, remote->push_refspec_nr,
 340                   remote->push_refspec, MATCH_REFS_NONE);
 341
 342        states->push.strdup_strings = 1;
 343        for (ref = push_map; ref; ref = ref->next) {
 344                struct string_list_item *item;
 345                struct push_info *info;
 346
 347                if (!ref->peer_ref)
 348                        continue;
 349                hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
 350
 351                item = string_list_append(abbrev_branch(ref->peer_ref->name),
 352                                          &states->push);
 353                item->util = xcalloc(sizeof(struct push_info), 1);
 354                info = item->util;
 355                info->forced = ref->force;
 356                info->dest = xstrdup(abbrev_branch(ref->name));
 357
 358                if (is_null_sha1(ref->new_sha1)) {
 359                        info->status = PUSH_STATUS_DELETE;
 360                } else if (!hashcmp(ref->old_sha1, ref->new_sha1))
 361                        info->status = PUSH_STATUS_UPTODATE;
 362                else if (is_null_sha1(ref->old_sha1))
 363                        info->status = PUSH_STATUS_CREATE;
 364                else if (has_sha1_file(ref->old_sha1) &&
 365                         ref_newer(ref->new_sha1, ref->old_sha1))
 366                        info->status = PUSH_STATUS_FASTFORWARD;
 367                else
 368                        info->status = PUSH_STATUS_OUTOFDATE;
 369        }
 370        free_refs(local_refs);
 371        free_refs(push_map);
 372        return 0;
 373}
 374
 375static int get_push_ref_states_noquery(struct ref_states *states)
 376{
 377        int i;
 378        struct remote *remote = states->remote;
 379        struct string_list_item *item;
 380        struct push_info *info;
 381
 382        if (remote->mirror)
 383                return 0;
 384
 385        states->push.strdup_strings = 1;
 386        if (!remote->push_refspec_nr) {
 387                item = string_list_append("(matching)", &states->push);
 388                info = item->util = xcalloc(sizeof(struct push_info), 1);
 389                info->status = PUSH_STATUS_NOTQUERIED;
 390                info->dest = xstrdup(item->string);
 391        }
 392        for (i = 0; i < remote->push_refspec_nr; i++) {
 393                struct refspec *spec = remote->push + i;
 394                if (spec->matching)
 395                        item = string_list_append("(matching)", &states->push);
 396                else if (strlen(spec->src))
 397                        item = string_list_append(spec->src, &states->push);
 398                else
 399                        item = string_list_append("(delete)", &states->push);
 400
 401                info = item->util = xcalloc(sizeof(struct push_info), 1);
 402                info->forced = spec->force;
 403                info->status = PUSH_STATUS_NOTQUERIED;
 404                info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 405        }
 406        return 0;
 407}
 408
 409static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 410{
 411        struct ref *ref, *matches;
 412        struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 413        struct refspec refspec;
 414
 415        refspec.force = 0;
 416        refspec.pattern = 1;
 417        refspec.src = refspec.dst = "refs/heads/*";
 418        states->heads.strdup_strings = 1;
 419        get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 420        matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 421                                    fetch_map, 1);
 422        for (ref = matches; ref; ref = ref->next)
 423                string_list_append(abbrev_branch(ref->name), &states->heads);
 424
 425        free_refs(fetch_map);
 426        free_refs(matches);
 427
 428        return 0;
 429}
 430
 431struct known_remote {
 432        struct known_remote *next;
 433        struct remote *remote;
 434};
 435
 436struct known_remotes {
 437        struct remote *to_delete;
 438        struct known_remote *list;
 439};
 440
 441static int add_known_remote(struct remote *remote, void *cb_data)
 442{
 443        struct known_remotes *all = cb_data;
 444        struct known_remote *r;
 445
 446        if (!strcmp(all->to_delete->name, remote->name))
 447                return 0;
 448
 449        r = xmalloc(sizeof(*r));
 450        r->remote = remote;
 451        r->next = all->list;
 452        all->list = r;
 453        return 0;
 454}
 455
 456struct branches_for_remote {
 457        struct remote *remote;
 458        struct string_list *branches, *skipped;
 459        struct known_remotes *keep;
 460};
 461
 462static int add_branch_for_removal(const char *refname,
 463        const unsigned char *sha1, int flags, void *cb_data)
 464{
 465        struct branches_for_remote *branches = cb_data;
 466        struct refspec refspec;
 467        struct string_list_item *item;
 468        struct known_remote *kr;
 469
 470        memset(&refspec, 0, sizeof(refspec));
 471        refspec.dst = (char *)refname;
 472        if (remote_find_tracking(branches->remote, &refspec))
 473                return 0;
 474
 475        /* don't delete a branch if another remote also uses it */
 476        for (kr = branches->keep->list; kr; kr = kr->next) {
 477                memset(&refspec, 0, sizeof(refspec));
 478                refspec.dst = (char *)refname;
 479                if (!remote_find_tracking(kr->remote, &refspec))
 480                        return 0;
 481        }
 482
 483        /* don't delete non-remote refs */
 484        if (prefixcmp(refname, "refs/remotes")) {
 485                /* advise user how to delete local branches */
 486                if (!prefixcmp(refname, "refs/heads/"))
 487                        string_list_append(abbrev_branch(refname),
 488                                           branches->skipped);
 489                /* silently skip over other non-remote refs */
 490                return 0;
 491        }
 492
 493        /* make sure that symrefs are deleted */
 494        if (flags & REF_ISSYMREF)
 495                return unlink(git_path("%s", refname));
 496
 497        item = string_list_append(refname, branches->branches);
 498        item->util = xmalloc(20);
 499        hashcpy(item->util, sha1);
 500
 501        return 0;
 502}
 503
 504struct rename_info {
 505        const char *old;
 506        const char *new;
 507        struct string_list *remote_branches;
 508};
 509
 510static int read_remote_branches(const char *refname,
 511        const unsigned char *sha1, int flags, void *cb_data)
 512{
 513        struct rename_info *rename = cb_data;
 514        struct strbuf buf = STRBUF_INIT;
 515        struct string_list_item *item;
 516        int flag;
 517        unsigned char orig_sha1[20];
 518        const char *symref;
 519
 520        strbuf_addf(&buf, "refs/remotes/%s", rename->old);
 521        if (!prefixcmp(refname, buf.buf)) {
 522                item = string_list_append(xstrdup(refname), rename->remote_branches);
 523                symref = resolve_ref(refname, orig_sha1, 1, &flag);
 524                if (flag & REF_ISSYMREF)
 525                        item->util = xstrdup(symref);
 526                else
 527                        item->util = NULL;
 528        }
 529
 530        return 0;
 531}
 532
 533static int migrate_file(struct remote *remote)
 534{
 535        struct strbuf buf = STRBUF_INIT;
 536        int i;
 537        char *path = NULL;
 538
 539        strbuf_addf(&buf, "remote.%s.url", remote->name);
 540        for (i = 0; i < remote->url_nr; i++)
 541                if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0))
 542                        return error("Could not append '%s' to '%s'",
 543                                        remote->url[i], buf.buf);
 544        strbuf_reset(&buf);
 545        strbuf_addf(&buf, "remote.%s.push", remote->name);
 546        for (i = 0; i < remote->push_refspec_nr; i++)
 547                if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0))
 548                        return error("Could not append '%s' to '%s'",
 549                                        remote->push_refspec[i], buf.buf);
 550        strbuf_reset(&buf);
 551        strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 552        for (i = 0; i < remote->fetch_refspec_nr; i++)
 553                if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0))
 554                        return error("Could not append '%s' to '%s'",
 555                                        remote->fetch_refspec[i], buf.buf);
 556        if (remote->origin == REMOTE_REMOTES)
 557                path = git_path("remotes/%s", remote->name);
 558        else if (remote->origin == REMOTE_BRANCHES)
 559                path = git_path("branches/%s", remote->name);
 560        if (path)
 561                unlink_or_warn(path);
 562        return 0;
 563}
 564
 565static int mv(int argc, const char **argv)
 566{
 567        struct option options[] = {
 568                OPT_END()
 569        };
 570        struct remote *oldremote, *newremote;
 571        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT;
 572        struct string_list remote_branches = { NULL, 0, 0, 0 };
 573        struct rename_info rename;
 574        int i;
 575
 576        if (argc != 3)
 577                usage_with_options(builtin_remote_rename_usage, options);
 578
 579        rename.old = argv[1];
 580        rename.new = argv[2];
 581        rename.remote_branches = &remote_branches;
 582
 583        oldremote = remote_get(rename.old);
 584        if (!oldremote)
 585                die("No such remote: %s", rename.old);
 586
 587        if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
 588                return migrate_file(oldremote);
 589
 590        newremote = remote_get(rename.new);
 591        if (newremote && (newremote->url_nr > 1 || newremote->fetch_refspec_nr))
 592                die("remote %s already exists.", rename.new);
 593
 594        strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
 595        if (!valid_fetch_refspec(buf.buf))
 596                die("'%s' is not a valid remote name", rename.new);
 597
 598        strbuf_reset(&buf);
 599        strbuf_addf(&buf, "remote.%s", rename.old);
 600        strbuf_addf(&buf2, "remote.%s", rename.new);
 601        if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 602                return error("Could not rename config section '%s' to '%s'",
 603                                buf.buf, buf2.buf);
 604
 605        strbuf_reset(&buf);
 606        strbuf_addf(&buf, "remote.%s.fetch", rename.new);
 607        if (git_config_set_multivar(buf.buf, NULL, NULL, 1))
 608                return error("Could not remove config section '%s'", buf.buf);
 609        for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 610                char *ptr;
 611
 612                strbuf_reset(&buf2);
 613                strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 614                ptr = strstr(buf2.buf, rename.old);
 615                if (ptr)
 616                        strbuf_splice(&buf2, ptr-buf2.buf, strlen(rename.old),
 617                                        rename.new, strlen(rename.new));
 618                if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 619                        return error("Could not append '%s'", buf.buf);
 620        }
 621
 622        read_branches();
 623        for (i = 0; i < branch_list.nr; i++) {
 624                struct string_list_item *item = branch_list.items + i;
 625                struct branch_info *info = item->util;
 626                if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 627                        strbuf_reset(&buf);
 628                        strbuf_addf(&buf, "branch.%s.remote", item->string);
 629                        if (git_config_set(buf.buf, rename.new)) {
 630                                return error("Could not set '%s'", buf.buf);
 631                        }
 632                }
 633        }
 634
 635        /*
 636         * First remove symrefs, then rename the rest, finally create
 637         * the new symrefs.
 638         */
 639        for_each_ref(read_remote_branches, &rename);
 640        for (i = 0; i < remote_branches.nr; i++) {
 641                struct string_list_item *item = remote_branches.items + i;
 642                int flag = 0;
 643                unsigned char sha1[20];
 644
 645                resolve_ref(item->string, sha1, 1, &flag);
 646                if (!(flag & REF_ISSYMREF))
 647                        continue;
 648                if (delete_ref(item->string, NULL, REF_NODEREF))
 649                        die("deleting '%s' failed", item->string);
 650        }
 651        for (i = 0; i < remote_branches.nr; i++) {
 652                struct string_list_item *item = remote_branches.items + i;
 653
 654                if (item->util)
 655                        continue;
 656                strbuf_reset(&buf);
 657                strbuf_addstr(&buf, item->string);
 658                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 659                                rename.new, strlen(rename.new));
 660                strbuf_reset(&buf2);
 661                strbuf_addf(&buf2, "remote: renamed %s to %s",
 662                                item->string, buf.buf);
 663                if (rename_ref(item->string, buf.buf, buf2.buf))
 664                        die("renaming '%s' failed", item->string);
 665        }
 666        for (i = 0; i < remote_branches.nr; i++) {
 667                struct string_list_item *item = remote_branches.items + i;
 668
 669                if (!item->util)
 670                        continue;
 671                strbuf_reset(&buf);
 672                strbuf_addstr(&buf, item->string);
 673                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 674                                rename.new, strlen(rename.new));
 675                strbuf_reset(&buf2);
 676                strbuf_addstr(&buf2, item->util);
 677                strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
 678                                rename.new, strlen(rename.new));
 679                strbuf_reset(&buf3);
 680                strbuf_addf(&buf3, "remote: renamed %s to %s",
 681                                item->string, buf.buf);
 682                if (create_symref(buf.buf, buf2.buf, buf3.buf))
 683                        die("creating '%s' failed", buf.buf);
 684        }
 685        return 0;
 686}
 687
 688static int remove_branches(struct string_list *branches)
 689{
 690        int i, result = 0;
 691        for (i = 0; i < branches->nr; i++) {
 692                struct string_list_item *item = branches->items + i;
 693                const char *refname = item->string;
 694                unsigned char *sha1 = item->util;
 695
 696                if (delete_ref(refname, sha1, 0))
 697                        result |= error("Could not remove branch %s", refname);
 698        }
 699        return result;
 700}
 701
 702static int rm(int argc, const char **argv)
 703{
 704        struct option options[] = {
 705                OPT_END()
 706        };
 707        struct remote *remote;
 708        struct strbuf buf = STRBUF_INIT;
 709        struct known_remotes known_remotes = { NULL, NULL };
 710        struct string_list branches = { NULL, 0, 0, 1 };
 711        struct string_list skipped = { NULL, 0, 0, 1 };
 712        struct branches_for_remote cb_data = {
 713                NULL, &branches, &skipped, &known_remotes
 714        };
 715        int i, result;
 716
 717        if (argc != 2)
 718                usage_with_options(builtin_remote_rm_usage, options);
 719
 720        remote = remote_get(argv[1]);
 721        if (!remote)
 722                die("No such remote: %s", argv[1]);
 723
 724        known_remotes.to_delete = remote;
 725        for_each_remote(add_known_remote, &known_remotes);
 726
 727        strbuf_addf(&buf, "remote.%s", remote->name);
 728        if (git_config_rename_section(buf.buf, NULL) < 1)
 729                return error("Could not remove config section '%s'", buf.buf);
 730
 731        read_branches();
 732        for (i = 0; i < branch_list.nr; i++) {
 733                struct string_list_item *item = branch_list.items + i;
 734                struct branch_info *info = item->util;
 735                if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 736                        const char *keys[] = { "remote", "merge", NULL }, **k;
 737                        for (k = keys; *k; k++) {
 738                                strbuf_reset(&buf);
 739                                strbuf_addf(&buf, "branch.%s.%s",
 740                                                item->string, *k);
 741                                if (git_config_set(buf.buf, NULL)) {
 742                                        strbuf_release(&buf);
 743                                        return -1;
 744                                }
 745                        }
 746                }
 747        }
 748
 749        /*
 750         * We cannot just pass a function to for_each_ref() which deletes
 751         * the branches one by one, since for_each_ref() relies on cached
 752         * refs, which are invalidated when deleting a branch.
 753         */
 754        cb_data.remote = remote;
 755        result = for_each_ref(add_branch_for_removal, &cb_data);
 756        strbuf_release(&buf);
 757
 758        if (!result)
 759                result = remove_branches(&branches);
 760        string_list_clear(&branches, 1);
 761
 762        if (skipped.nr) {
 763                fprintf(stderr, skipped.nr == 1 ?
 764                        "Note: A non-remote branch was not removed; "
 765                        "to delete it, use:\n" :
 766                        "Note: Non-remote branches were not removed; "
 767                        "to delete them, use:\n");
 768                for (i = 0; i < skipped.nr; i++)
 769                        fprintf(stderr, "  git branch -d %s\n",
 770                                skipped.items[i].string);
 771        }
 772        string_list_clear(&skipped, 0);
 773
 774        return result;
 775}
 776
 777static void clear_push_info(void *util, const char *string)
 778{
 779        struct push_info *info = util;
 780        free(info->dest);
 781        free(info);
 782}
 783
 784static void free_remote_ref_states(struct ref_states *states)
 785{
 786        string_list_clear(&states->new, 0);
 787        string_list_clear(&states->stale, 0);
 788        string_list_clear(&states->tracked, 0);
 789        string_list_clear(&states->heads, 0);
 790        string_list_clear_func(&states->push, clear_push_info);
 791}
 792
 793static int append_ref_to_tracked_list(const char *refname,
 794        const unsigned char *sha1, int flags, void *cb_data)
 795{
 796        struct ref_states *states = cb_data;
 797        struct refspec refspec;
 798
 799        if (flags & REF_ISSYMREF)
 800                return 0;
 801
 802        memset(&refspec, 0, sizeof(refspec));
 803        refspec.dst = (char *)refname;
 804        if (!remote_find_tracking(states->remote, &refspec))
 805                string_list_append(abbrev_branch(refspec.src), &states->tracked);
 806
 807        return 0;
 808}
 809
 810static int get_remote_ref_states(const char *name,
 811                                 struct ref_states *states,
 812                                 int query)
 813{
 814        struct transport *transport;
 815        const struct ref *remote_refs;
 816
 817        states->remote = remote_get(name);
 818        if (!states->remote)
 819                return error("No such remote: %s", name);
 820
 821        read_branches();
 822
 823        if (query) {
 824                transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 825                        states->remote->url[0] : NULL);
 826                remote_refs = transport_get_remote_refs(transport);
 827                transport_disconnect(transport);
 828
 829                states->queried = 1;
 830                if (query & GET_REF_STATES)
 831                        get_ref_states(remote_refs, states);
 832                if (query & GET_HEAD_NAMES)
 833                        get_head_names(remote_refs, states);
 834                if (query & GET_PUSH_REF_STATES)
 835                        get_push_ref_states(remote_refs, states);
 836        } else {
 837                for_each_ref(append_ref_to_tracked_list, states);
 838                sort_string_list(&states->tracked);
 839                get_push_ref_states_noquery(states);
 840        }
 841
 842        return 0;
 843}
 844
 845struct show_info {
 846        struct string_list *list;
 847        struct ref_states *states;
 848        int width, width2;
 849        int any_rebase;
 850};
 851
 852static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 853{
 854        struct show_info *info = cb_data;
 855        int n = strlen(item->string);
 856        if (n > info->width)
 857                info->width = n;
 858        string_list_insert(item->string, info->list);
 859        return 0;
 860}
 861
 862static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 863{
 864        struct show_info *info = cb_data;
 865        struct ref_states *states = info->states;
 866        const char *name = item->string;
 867
 868        if (states->queried) {
 869                const char *fmt = "%s";
 870                const char *arg = "";
 871                if (string_list_has_string(&states->new, name)) {
 872                        fmt = " new (next fetch will store in remotes/%s)";
 873                        arg = states->remote->name;
 874                } else if (string_list_has_string(&states->tracked, name))
 875                        arg = " tracked";
 876                else if (string_list_has_string(&states->stale, name))
 877                        arg = " stale (use 'git remote prune' to remove)";
 878                else
 879                        arg = " ???";
 880                printf("    %-*s", info->width, name);
 881                printf(fmt, arg);
 882                printf("\n");
 883        } else
 884                printf("    %s\n", name);
 885
 886        return 0;
 887}
 888
 889static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 890{
 891        struct show_info *show_info = cb_data;
 892        struct ref_states *states = show_info->states;
 893        struct branch_info *branch_info = branch_item->util;
 894        struct string_list_item *item;
 895        int n;
 896
 897        if (!branch_info->merge.nr || !branch_info->remote_name ||
 898            strcmp(states->remote->name, branch_info->remote_name))
 899                return 0;
 900        if ((n = strlen(branch_item->string)) > show_info->width)
 901                show_info->width = n;
 902        if (branch_info->rebase)
 903                show_info->any_rebase = 1;
 904
 905        item = string_list_insert(branch_item->string, show_info->list);
 906        item->util = branch_info;
 907
 908        return 0;
 909}
 910
 911static int show_local_info_item(struct string_list_item *item, void *cb_data)
 912{
 913        struct show_info *show_info = cb_data;
 914        struct branch_info *branch_info = item->util;
 915        struct string_list *merge = &branch_info->merge;
 916        const char *also;
 917        int i;
 918
 919        if (branch_info->rebase && branch_info->merge.nr > 1) {
 920                error("invalid branch.%s.merge; cannot rebase onto > 1 branch",
 921                        item->string);
 922                return 0;
 923        }
 924
 925        printf("    %-*s ", show_info->width, item->string);
 926        if (branch_info->rebase) {
 927                printf("rebases onto remote %s\n", merge->items[0].string);
 928                return 0;
 929        } else if (show_info->any_rebase) {
 930                printf(" merges with remote %s\n", merge->items[0].string);
 931                also = "    and with remote";
 932        } else {
 933                printf("merges with remote %s\n", merge->items[0].string);
 934                also = "   and with remote";
 935        }
 936        for (i = 1; i < merge->nr; i++)
 937                printf("    %-*s %s %s\n", show_info->width, "", also,
 938                       merge->items[i].string);
 939
 940        return 0;
 941}
 942
 943static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
 944{
 945        struct show_info *show_info = cb_data;
 946        struct push_info *push_info = push_item->util;
 947        struct string_list_item *item;
 948        int n;
 949        if ((n = strlen(push_item->string)) > show_info->width)
 950                show_info->width = n;
 951        if ((n = strlen(push_info->dest)) > show_info->width2)
 952                show_info->width2 = n;
 953        item = string_list_append(push_item->string, show_info->list);
 954        item->util = push_item->util;
 955        return 0;
 956}
 957
 958/*
 959 * Sorting comparison for a string list that has push_info
 960 * structs in its util field
 961 */
 962static int cmp_string_with_push(const void *va, const void *vb)
 963{
 964        const struct string_list_item *a = va;
 965        const struct string_list_item *b = vb;
 966        const struct push_info *a_push = a->util;
 967        const struct push_info *b_push = b->util;
 968        int cmp = strcmp(a->string, b->string);
 969        return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
 970}
 971
 972static int show_push_info_item(struct string_list_item *item, void *cb_data)
 973{
 974        struct show_info *show_info = cb_data;
 975        struct push_info *push_info = item->util;
 976        char *src = item->string, *status = NULL;
 977
 978        switch (push_info->status) {
 979        case PUSH_STATUS_CREATE:
 980                status = "create";
 981                break;
 982        case PUSH_STATUS_DELETE:
 983                status = "delete";
 984                src = "(none)";
 985                break;
 986        case PUSH_STATUS_UPTODATE:
 987                status = "up to date";
 988                break;
 989        case PUSH_STATUS_FASTFORWARD:
 990                status = "fast forwardable";
 991                break;
 992        case PUSH_STATUS_OUTOFDATE:
 993                status = "local out of date";
 994                break;
 995        case PUSH_STATUS_NOTQUERIED:
 996                break;
 997        }
 998        if (status)
 999                printf("    %-*s %s to %-*s (%s)\n", show_info->width, src,
1000                        push_info->forced ? "forces" : "pushes",
1001                        show_info->width2, push_info->dest, status);
1002        else
1003                printf("    %-*s %s to %s\n", show_info->width, src,
1004                        push_info->forced ? "forces" : "pushes",
1005                        push_info->dest);
1006        return 0;
1007}
1008
1009static int show(int argc, const char **argv)
1010{
1011        int no_query = 0, result = 0, query_flag = 0;
1012        struct option options[] = {
1013                OPT_BOOLEAN('n', NULL, &no_query, "do not query remotes"),
1014                OPT_END()
1015        };
1016        struct ref_states states;
1017        struct string_list info_list = { NULL, 0, 0, 0 };
1018        struct show_info info;
1019
1020        argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1021                             0);
1022
1023        if (argc < 1)
1024                return show_all();
1025
1026        if (!no_query)
1027                query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1028
1029        memset(&states, 0, sizeof(states));
1030        memset(&info, 0, sizeof(info));
1031        info.states = &states;
1032        info.list = &info_list;
1033        for (; argc; argc--, argv++) {
1034                int i;
1035                const char **url;
1036                int url_nr;
1037
1038                get_remote_ref_states(*argv, &states, query_flag);
1039
1040                printf("* remote %s\n", *argv);
1041                printf("  Fetch URL: %s\n", states.remote->url_nr > 0 ?
1042                        states.remote->url[0] : "(no URL)");
1043                if (states.remote->pushurl_nr) {
1044                        url = states.remote->pushurl;
1045                        url_nr = states.remote->pushurl_nr;
1046                } else {
1047                        url = states.remote->url;
1048                        url_nr = states.remote->url_nr;
1049                }
1050                for (i=0; i < url_nr; i++)
1051                        printf("  Push  URL: %s\n", url[i]);
1052                if (!i)
1053                        printf("  Push  URL: %s\n", "(no URL)");
1054                if (no_query)
1055                        printf("  HEAD branch: (not queried)\n");
1056                else if (!states.heads.nr)
1057                        printf("  HEAD branch: (unknown)\n");
1058                else if (states.heads.nr == 1)
1059                        printf("  HEAD branch: %s\n", states.heads.items[0].string);
1060                else {
1061                        printf("  HEAD branch (remote HEAD is ambiguous,"
1062                               " may be one of the following):\n");
1063                        for (i = 0; i < states.heads.nr; i++)
1064                                printf("    %s\n", states.heads.items[i].string);
1065                }
1066
1067                /* remote branch info */
1068                info.width = 0;
1069                for_each_string_list(add_remote_to_show_info, &states.new, &info);
1070                for_each_string_list(add_remote_to_show_info, &states.tracked, &info);
1071                for_each_string_list(add_remote_to_show_info, &states.stale, &info);
1072                if (info.list->nr)
1073                        printf("  Remote branch%s:%s\n",
1074                               info.list->nr > 1 ? "es" : "",
1075                                no_query ? " (status not queried)" : "");
1076                for_each_string_list(show_remote_info_item, info.list, &info);
1077                string_list_clear(info.list, 0);
1078
1079                /* git pull info */
1080                info.width = 0;
1081                info.any_rebase = 0;
1082                for_each_string_list(add_local_to_show_info, &branch_list, &info);
1083                if (info.list->nr)
1084                        printf("  Local branch%s configured for 'git pull':\n",
1085                               info.list->nr > 1 ? "es" : "");
1086                for_each_string_list(show_local_info_item, info.list, &info);
1087                string_list_clear(info.list, 0);
1088
1089                /* git push info */
1090                if (states.remote->mirror)
1091                        printf("  Local refs will be mirrored by 'git push'\n");
1092
1093                info.width = info.width2 = 0;
1094                for_each_string_list(add_push_to_show_info, &states.push, &info);
1095                qsort(info.list->items, info.list->nr,
1096                        sizeof(*info.list->items), cmp_string_with_push);
1097                if (info.list->nr)
1098                        printf("  Local ref%s configured for 'git push'%s:\n",
1099                                info.list->nr > 1 ? "s" : "",
1100                                no_query ? " (status not queried)" : "");
1101                for_each_string_list(show_push_info_item, info.list, &info);
1102                string_list_clear(info.list, 0);
1103
1104                free_remote_ref_states(&states);
1105        }
1106
1107        return result;
1108}
1109
1110static int set_head(int argc, const char **argv)
1111{
1112        int i, opt_a = 0, opt_d = 0, result = 0;
1113        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1114        char *head_name = NULL;
1115
1116        struct option options[] = {
1117                OPT_BOOLEAN('a', "auto", &opt_a,
1118                            "set refs/remotes/<name>/HEAD according to remote"),
1119                OPT_BOOLEAN('d', "delete", &opt_d,
1120                            "delete refs/remotes/<name>/HEAD"),
1121                OPT_END()
1122        };
1123        argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1124                             0);
1125        if (argc)
1126                strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1127
1128        if (!opt_a && !opt_d && argc == 2) {
1129                head_name = xstrdup(argv[1]);
1130        } else if (opt_a && !opt_d && argc == 1) {
1131                struct ref_states states;
1132                memset(&states, 0, sizeof(states));
1133                get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1134                if (!states.heads.nr)
1135                        result |= error("Cannot determine remote HEAD");
1136                else if (states.heads.nr > 1) {
1137                        result |= error("Multiple remote HEAD branches. "
1138                                        "Please choose one explicitly with:");
1139                        for (i = 0; i < states.heads.nr; i++)
1140                                fprintf(stderr, "  git remote set-head %s %s\n",
1141                                        argv[0], states.heads.items[i].string);
1142                } else
1143                        head_name = xstrdup(states.heads.items[0].string);
1144                free_remote_ref_states(&states);
1145        } else if (opt_d && !opt_a && argc == 1) {
1146                if (delete_ref(buf.buf, NULL, REF_NODEREF))
1147                        result |= error("Could not delete %s", buf.buf);
1148        } else
1149                usage_with_options(builtin_remote_sethead_usage, options);
1150
1151        if (head_name) {
1152                unsigned char sha1[20];
1153                strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1154                /* make sure it's valid */
1155                if (!resolve_ref(buf2.buf, sha1, 1, NULL))
1156                        result |= error("Not a valid ref: %s", buf2.buf);
1157                else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1158                        result |= error("Could not setup %s", buf.buf);
1159                if (opt_a)
1160                        printf("%s/HEAD set to %s\n", argv[0], head_name);
1161                free(head_name);
1162        }
1163
1164        strbuf_release(&buf);
1165        strbuf_release(&buf2);
1166        return result;
1167}
1168
1169static int prune(int argc, const char **argv)
1170{
1171        int dry_run = 0, result = 0;
1172        struct option options[] = {
1173                OPT__DRY_RUN(&dry_run),
1174                OPT_END()
1175        };
1176
1177        argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1178                             0);
1179
1180        if (argc < 1)
1181                usage_with_options(builtin_remote_prune_usage, options);
1182
1183        for (; argc; argc--, argv++)
1184                result |= prune_remote(*argv, dry_run);
1185
1186        return result;
1187}
1188
1189static int prune_remote(const char *remote, int dry_run)
1190{
1191        int result = 0, i;
1192        struct ref_states states;
1193        const char *dangling_msg = dry_run
1194                ? " %s will become dangling!\n"
1195                : " %s has become dangling!\n";
1196
1197        memset(&states, 0, sizeof(states));
1198        get_remote_ref_states(remote, &states, GET_REF_STATES);
1199
1200        if (states.stale.nr) {
1201                printf("Pruning %s\n", remote);
1202                printf("URL: %s\n",
1203                       states.remote->url_nr
1204                       ? states.remote->url[0]
1205                       : "(no URL)");
1206        }
1207
1208        for (i = 0; i < states.stale.nr; i++) {
1209                const char *refname = states.stale.items[i].util;
1210
1211                if (!dry_run)
1212                        result |= delete_ref(refname, NULL, 0);
1213
1214                printf(" * [%s] %s\n", dry_run ? "would prune" : "pruned",
1215                       abbrev_ref(refname, "refs/remotes/"));
1216                warn_dangling_symref(dangling_msg, refname);
1217        }
1218
1219        free_remote_ref_states(&states);
1220        return result;
1221}
1222
1223static int get_one_remote_for_update(struct remote *remote, void *priv)
1224{
1225        struct string_list *list = priv;
1226        if (!remote->skip_default_update)
1227                string_list_append(remote->name, list);
1228        return 0;
1229}
1230
1231static struct remote_group {
1232        const char *name;
1233        struct string_list *list;
1234} remote_group;
1235
1236static int get_remote_group(const char *key, const char *value, void *num_hits)
1237{
1238        if (!prefixcmp(key, "remotes.") &&
1239                        !strcmp(key + 8, remote_group.name)) {
1240                /* split list by white space */
1241                int space = strcspn(value, " \t\n");
1242                while (*value) {
1243                        if (space > 1) {
1244                                string_list_append(xstrndup(value, space),
1245                                                remote_group.list);
1246                                ++*((int *)num_hits);
1247                        }
1248                        value += space + (value[space] != '\0');
1249                        space = strcspn(value, " \t\n");
1250                }
1251        }
1252
1253        return 0;
1254}
1255
1256static int update(int argc, const char **argv)
1257{
1258        int i, result = 0, prune = 0;
1259        struct string_list list = { NULL, 0, 0, 0 };
1260        static const char *default_argv[] = { NULL, "default", NULL };
1261        struct option options[] = {
1262                OPT_BOOLEAN('p', "prune", &prune,
1263                            "prune remotes after fetching"),
1264                OPT_END()
1265        };
1266
1267        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1268                             PARSE_OPT_KEEP_ARGV0);
1269        if (argc < 2) {
1270                argc = 2;
1271                argv = default_argv;
1272        }
1273
1274        remote_group.list = &list;
1275        for (i = 1; i < argc; i++) {
1276                int groups_found = 0;
1277                remote_group.name = argv[i];
1278                result = git_config(get_remote_group, &groups_found);
1279                if (!groups_found && (i != 1 || strcmp(argv[1], "default"))) {
1280                        struct remote *remote;
1281                        if (!remote_is_configured(argv[i]))
1282                                die("No such remote or remote group: %s",
1283                                    argv[i]);
1284                        remote = remote_get(argv[i]);
1285                        string_list_append(remote->name, remote_group.list);
1286                }
1287        }
1288
1289        if (!result && !list.nr  && argc == 2 && !strcmp(argv[1], "default"))
1290                result = for_each_remote(get_one_remote_for_update, &list);
1291
1292        for (i = 0; i < list.nr; i++) {
1293                int err = fetch_remote(list.items[i].string);
1294                result |= err;
1295                if (!err && prune)
1296                        result |= prune_remote(list.items[i].string, 0);
1297        }
1298
1299        /* all names were strdup()ed or strndup()ed */
1300        list.strdup_strings = 1;
1301        string_list_clear(&list, 0);
1302
1303        return result;
1304}
1305
1306static int get_one_entry(struct remote *remote, void *priv)
1307{
1308        struct string_list *list = priv;
1309        struct strbuf url_buf = STRBUF_INIT;
1310        const char **url;
1311        int i, url_nr;
1312
1313        if (remote->url_nr > 0) {
1314                strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1315                string_list_append(remote->name, list)->util =
1316                                strbuf_detach(&url_buf, NULL);
1317        } else
1318                string_list_append(remote->name, list)->util = NULL;
1319        if (remote->pushurl_nr) {
1320                url = remote->pushurl;
1321                url_nr = remote->pushurl_nr;
1322        } else {
1323                url = remote->url;
1324                url_nr = remote->url_nr;
1325        }
1326        for (i = 0; i < url_nr; i++)
1327        {
1328                strbuf_addf(&url_buf, "%s (push)", url[i]);
1329                string_list_append(remote->name, list)->util =
1330                                strbuf_detach(&url_buf, NULL);
1331        }
1332
1333        return 0;
1334}
1335
1336static int show_all(void)
1337{
1338        struct string_list list = { NULL, 0, 0 };
1339        int result;
1340
1341        list.strdup_strings = 1;
1342        result = for_each_remote(get_one_entry, &list);
1343
1344        if (!result) {
1345                int i;
1346
1347                sort_string_list(&list);
1348                for (i = 0; i < list.nr; i++) {
1349                        struct string_list_item *item = list.items + i;
1350                        if (verbose)
1351                                printf("%s\t%s\n", item->string,
1352                                        item->util ? (const char *)item->util : "");
1353                        else {
1354                                if (i && !strcmp((item - 1)->string, item->string))
1355                                        continue;
1356                                printf("%s\n", item->string);
1357                        }
1358                }
1359        }
1360        string_list_clear(&list, 1);
1361        return result;
1362}
1363
1364int cmd_remote(int argc, const char **argv, const char *prefix)
1365{
1366        struct option options[] = {
1367                OPT_BOOLEAN('v', "verbose", &verbose, "be verbose; must be placed before a subcommand"),
1368                OPT_END()
1369        };
1370        int result;
1371
1372        argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1373                PARSE_OPT_STOP_AT_NON_OPTION);
1374
1375        if (argc < 1)
1376                result = show_all();
1377        else if (!strcmp(argv[0], "add"))
1378                result = add(argc, argv);
1379        else if (!strcmp(argv[0], "rename"))
1380                result = mv(argc, argv);
1381        else if (!strcmp(argv[0], "rm"))
1382                result = rm(argc, argv);
1383        else if (!strcmp(argv[0], "set-head"))
1384                result = set_head(argc, argv);
1385        else if (!strcmp(argv[0], "show"))
1386                result = show(argc, argv);
1387        else if (!strcmp(argv[0], "prune"))
1388                result = prune(argc, argv);
1389        else if (!strcmp(argv[0], "update"))
1390                result = update(argc, argv);
1391        else {
1392                error("Unknown subcommand: %s", argv[0]);
1393                usage_with_options(builtin_remote_usage, options);
1394        }
1395
1396        return result ? 1 : 0;
1397}