Andrew's git / gitweb.git / builtin/remote.c
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builtin / remote.con commit Merge branch 'jn/checkout-doc' into maint (12575b7)
   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        "git remote set-url <name> <newurl> [<oldurl>]",
  20        "git remote set-url --add <name> <newurl>",
  21        "git remote set-url --delete <name> <url>",
  22        NULL
  23};
  24
  25static const char * const builtin_remote_add_usage[] = {
  26        "git remote add [<options>] <name> <url>",
  27        NULL
  28};
  29
  30static const char * const builtin_remote_rename_usage[] = {
  31        "git remote rename <old> <new>",
  32        NULL
  33};
  34
  35static const char * const builtin_remote_rm_usage[] = {
  36        "git remote rm <name>",
  37        NULL
  38};
  39
  40static const char * const builtin_remote_sethead_usage[] = {
  41        "git remote set-head <name> (-a | -d | <branch>])",
  42        NULL
  43};
  44
  45static const char * const builtin_remote_show_usage[] = {
  46        "git remote show [<options>] <name>",
  47        NULL
  48};
  49
  50static const char * const builtin_remote_prune_usage[] = {
  51        "git remote prune [<options>] <name>",
  52        NULL
  53};
  54
  55static const char * const builtin_remote_update_usage[] = {
  56        "git remote update [<options>] [<group> | <remote>]...",
  57        NULL
  58};
  59
  60static const char * const builtin_remote_seturl_usage[] = {
  61        "git remote set-url [--push] <name> <newurl> [<oldurl>]",
  62        "git remote set-url --add <name> <newurl>",
  63        "git remote set-url --delete <name> <url>",
  64        NULL
  65};
  66
  67#define GET_REF_STATES (1<<0)
  68#define GET_HEAD_NAMES (1<<1)
  69#define GET_PUSH_REF_STATES (1<<2)
  70
  71static int verbose;
  72
  73static int show_all(void);
  74static int prune_remote(const char *remote, int dry_run);
  75
  76static inline int postfixcmp(const char *string, const char *postfix)
  77{
  78        int len1 = strlen(string), len2 = strlen(postfix);
  79        if (len1 < len2)
  80                return 1;
  81        return strcmp(string + len1 - len2, postfix);
  82}
  83
  84static int opt_parse_track(const struct option *opt, const char *arg, int not)
  85{
  86        struct string_list *list = opt->value;
  87        if (not)
  88                string_list_clear(list, 0);
  89        else
  90                string_list_append(arg, list);
  91        return 0;
  92}
  93
  94static int fetch_remote(const char *name)
  95{
  96        const char *argv[] = { "fetch", name, NULL, NULL };
  97        if (verbose) {
  98                argv[1] = "-v";
  99                argv[2] = name;
 100        }
 101        printf("Updating %s\n", name);
 102        if (run_command_v_opt(argv, RUN_GIT_CMD))
 103                return error("Could not fetch %s", name);
 104        return 0;
 105}
 106
 107static int add(int argc, const char **argv)
 108{
 109        int fetch = 0, mirror = 0;
 110        struct string_list track = { NULL, 0, 0 };
 111        const char *master = NULL;
 112        struct remote *remote;
 113        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
 114        const char *name, *url;
 115        int i;
 116
 117        struct option options[] = {
 118                OPT_BOOLEAN('f', "fetch", &fetch, "fetch the remote branches"),
 119                OPT_CALLBACK('t', "track", &track, "branch",
 120                        "branch(es) to track", opt_parse_track),
 121                OPT_STRING('m', "master", &master, "branch", "master branch"),
 122                OPT_BOOLEAN(0, "mirror", &mirror, "no separate remotes"),
 123                OPT_END()
 124        };
 125
 126        argc = parse_options(argc, argv, NULL, options, builtin_remote_add_usage,
 127                             0);
 128
 129        if (argc < 2)
 130                usage_with_options(builtin_remote_add_usage, options);
 131
 132        name = argv[0];
 133        url = argv[1];
 134
 135        remote = remote_get(name);
 136        if (remote && (remote->url_nr > 1 || strcmp(name, remote->url[0]) ||
 137                        remote->fetch_refspec_nr))
 138                die("remote %s already exists.", name);
 139
 140        strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
 141        if (!valid_fetch_refspec(buf2.buf))
 142                die("'%s' is not a valid remote name", name);
 143
 144        strbuf_addf(&buf, "remote.%s.url", name);
 145        if (git_config_set(buf.buf, url))
 146                return 1;
 147
 148        strbuf_reset(&buf);
 149        strbuf_addf(&buf, "remote.%s.fetch", name);
 150
 151        if (track.nr == 0)
 152                string_list_append("*", &track);
 153        for (i = 0; i < track.nr; i++) {
 154                struct string_list_item *item = track.items + i;
 155
 156                strbuf_reset(&buf2);
 157                strbuf_addch(&buf2, '+');
 158                if (mirror)
 159                        strbuf_addf(&buf2, "refs/%s:refs/%s",
 160                                        item->string, item->string);
 161                else
 162                        strbuf_addf(&buf2, "refs/heads/%s:refs/remotes/%s/%s",
 163                                        item->string, name, item->string);
 164                if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 165                        return 1;
 166        }
 167
 168        if (mirror) {
 169                strbuf_reset(&buf);
 170                strbuf_addf(&buf, "remote.%s.mirror", name);
 171                if (git_config_set(buf.buf, "true"))
 172                        return 1;
 173        }
 174
 175        if (fetch && fetch_remote(name))
 176                return 1;
 177
 178        if (master) {
 179                strbuf_reset(&buf);
 180                strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
 181
 182                strbuf_reset(&buf2);
 183                strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
 184
 185                if (create_symref(buf.buf, buf2.buf, "remote add"))
 186                        return error("Could not setup master '%s'", master);
 187        }
 188
 189        strbuf_release(&buf);
 190        strbuf_release(&buf2);
 191        string_list_clear(&track, 0);
 192
 193        return 0;
 194}
 195
 196struct branch_info {
 197        char *remote_name;
 198        struct string_list merge;
 199        int rebase;
 200};
 201
 202static struct string_list branch_list;
 203
 204static const char *abbrev_ref(const char *name, const char *prefix)
 205{
 206        const char *abbrev = skip_prefix(name, prefix);
 207        if (abbrev)
 208                return abbrev;
 209        return name;
 210}
 211#define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 212
 213static int config_read_branches(const char *key, const char *value, void *cb)
 214{
 215        if (!prefixcmp(key, "branch.")) {
 216                const char *orig_key = key;
 217                char *name;
 218                struct string_list_item *item;
 219                struct branch_info *info;
 220                enum { REMOTE, MERGE, REBASE } type;
 221
 222                key += 7;
 223                if (!postfixcmp(key, ".remote")) {
 224                        name = xstrndup(key, strlen(key) - 7);
 225                        type = REMOTE;
 226                } else if (!postfixcmp(key, ".merge")) {
 227                        name = xstrndup(key, strlen(key) - 6);
 228                        type = MERGE;
 229                } else if (!postfixcmp(key, ".rebase")) {
 230                        name = xstrndup(key, strlen(key) - 7);
 231                        type = REBASE;
 232                } else
 233                        return 0;
 234
 235                item = string_list_insert(name, &branch_list);
 236
 237                if (!item->util)
 238                        item->util = xcalloc(sizeof(struct branch_info), 1);
 239                info = item->util;
 240                if (type == REMOTE) {
 241                        if (info->remote_name)
 242                                warning("more than one %s", orig_key);
 243                        info->remote_name = xstrdup(value);
 244                } else if (type == MERGE) {
 245                        char *space = strchr(value, ' ');
 246                        value = abbrev_branch(value);
 247                        while (space) {
 248                                char *merge;
 249                                merge = xstrndup(value, space - value);
 250                                string_list_append(merge, &info->merge);
 251                                value = abbrev_branch(space + 1);
 252                                space = strchr(value, ' ');
 253                        }
 254                        string_list_append(xstrdup(value), &info->merge);
 255                } else
 256                        info->rebase = git_config_bool(orig_key, value);
 257        }
 258        return 0;
 259}
 260
 261static void read_branches(void)
 262{
 263        if (branch_list.nr)
 264                return;
 265        git_config(config_read_branches, NULL);
 266}
 267
 268struct ref_states {
 269        struct remote *remote;
 270        struct string_list new, stale, tracked, heads, push;
 271        int queried;
 272};
 273
 274static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 275{
 276        struct ref *fetch_map = NULL, **tail = &fetch_map;
 277        struct ref *ref, *stale_refs;
 278        int i;
 279
 280        for (i = 0; i < states->remote->fetch_refspec_nr; i++)
 281                if (get_fetch_map(remote_refs, states->remote->fetch + i, &tail, 1))
 282                        die("Could not get fetch map for refspec %s",
 283                                states->remote->fetch_refspec[i]);
 284
 285        states->new.strdup_strings = 1;
 286        states->tracked.strdup_strings = 1;
 287        states->stale.strdup_strings = 1;
 288        for (ref = fetch_map; ref; ref = ref->next) {
 289                unsigned char sha1[20];
 290                if (!ref->peer_ref || read_ref(ref->peer_ref->name, sha1))
 291                        string_list_append(abbrev_branch(ref->name), &states->new);
 292                else
 293                        string_list_append(abbrev_branch(ref->name), &states->tracked);
 294        }
 295        stale_refs = get_stale_heads(states->remote, fetch_map);
 296        for (ref = stale_refs; ref; ref = ref->next) {
 297                struct string_list_item *item =
 298                        string_list_append(abbrev_branch(ref->name), &states->stale);
 299                item->util = xstrdup(ref->name);
 300        }
 301        free_refs(stale_refs);
 302        free_refs(fetch_map);
 303
 304        sort_string_list(&states->new);
 305        sort_string_list(&states->tracked);
 306        sort_string_list(&states->stale);
 307
 308        return 0;
 309}
 310
 311struct push_info {
 312        char *dest;
 313        int forced;
 314        enum {
 315                PUSH_STATUS_CREATE = 0,
 316                PUSH_STATUS_DELETE,
 317                PUSH_STATUS_UPTODATE,
 318                PUSH_STATUS_FASTFORWARD,
 319                PUSH_STATUS_OUTOFDATE,
 320                PUSH_STATUS_NOTQUERIED,
 321        } status;
 322};
 323
 324static int get_push_ref_states(const struct ref *remote_refs,
 325        struct ref_states *states)
 326{
 327        struct remote *remote = states->remote;
 328        struct ref *ref, *local_refs, *push_map;
 329        if (remote->mirror)
 330                return 0;
 331
 332        local_refs = get_local_heads();
 333        push_map = copy_ref_list(remote_refs);
 334
 335        match_refs(local_refs, &push_map, remote->push_refspec_nr,
 336                   remote->push_refspec, MATCH_REFS_NONE);
 337
 338        states->push.strdup_strings = 1;
 339        for (ref = push_map; ref; ref = ref->next) {
 340                struct string_list_item *item;
 341                struct push_info *info;
 342
 343                if (!ref->peer_ref)
 344                        continue;
 345                hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
 346
 347                item = string_list_append(abbrev_branch(ref->peer_ref->name),
 348                                          &states->push);
 349                item->util = xcalloc(sizeof(struct push_info), 1);
 350                info = item->util;
 351                info->forced = ref->force;
 352                info->dest = xstrdup(abbrev_branch(ref->name));
 353
 354                if (is_null_sha1(ref->new_sha1)) {
 355                        info->status = PUSH_STATUS_DELETE;
 356                } else if (!hashcmp(ref->old_sha1, ref->new_sha1))
 357                        info->status = PUSH_STATUS_UPTODATE;
 358                else if (is_null_sha1(ref->old_sha1))
 359                        info->status = PUSH_STATUS_CREATE;
 360                else if (has_sha1_file(ref->old_sha1) &&
 361                         ref_newer(ref->new_sha1, ref->old_sha1))
 362                        info->status = PUSH_STATUS_FASTFORWARD;
 363                else
 364                        info->status = PUSH_STATUS_OUTOFDATE;
 365        }
 366        free_refs(local_refs);
 367        free_refs(push_map);
 368        return 0;
 369}
 370
 371static int get_push_ref_states_noquery(struct ref_states *states)
 372{
 373        int i;
 374        struct remote *remote = states->remote;
 375        struct string_list_item *item;
 376        struct push_info *info;
 377
 378        if (remote->mirror)
 379                return 0;
 380
 381        states->push.strdup_strings = 1;
 382        if (!remote->push_refspec_nr) {
 383                item = string_list_append("(matching)", &states->push);
 384                info = item->util = xcalloc(sizeof(struct push_info), 1);
 385                info->status = PUSH_STATUS_NOTQUERIED;
 386                info->dest = xstrdup(item->string);
 387        }
 388        for (i = 0; i < remote->push_refspec_nr; i++) {
 389                struct refspec *spec = remote->push + i;
 390                if (spec->matching)
 391                        item = string_list_append("(matching)", &states->push);
 392                else if (strlen(spec->src))
 393                        item = string_list_append(spec->src, &states->push);
 394                else
 395                        item = string_list_append("(delete)", &states->push);
 396
 397                info = item->util = xcalloc(sizeof(struct push_info), 1);
 398                info->forced = spec->force;
 399                info->status = PUSH_STATUS_NOTQUERIED;
 400                info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 401        }
 402        return 0;
 403}
 404
 405static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 406{
 407        struct ref *ref, *matches;
 408        struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 409        struct refspec refspec;
 410
 411        refspec.force = 0;
 412        refspec.pattern = 1;
 413        refspec.src = refspec.dst = "refs/heads/*";
 414        states->heads.strdup_strings = 1;
 415        get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 416        matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 417                                    fetch_map, 1);
 418        for (ref = matches; ref; ref = ref->next)
 419                string_list_append(abbrev_branch(ref->name), &states->heads);
 420
 421        free_refs(fetch_map);
 422        free_refs(matches);
 423
 424        return 0;
 425}
 426
 427struct known_remote {
 428        struct known_remote *next;
 429        struct remote *remote;
 430};
 431
 432struct known_remotes {
 433        struct remote *to_delete;
 434        struct known_remote *list;
 435};
 436
 437static int add_known_remote(struct remote *remote, void *cb_data)
 438{
 439        struct known_remotes *all = cb_data;
 440        struct known_remote *r;
 441
 442        if (!strcmp(all->to_delete->name, remote->name))
 443                return 0;
 444
 445        r = xmalloc(sizeof(*r));
 446        r->remote = remote;
 447        r->next = all->list;
 448        all->list = r;
 449        return 0;
 450}
 451
 452struct branches_for_remote {
 453        struct remote *remote;
 454        struct string_list *branches, *skipped;
 455        struct known_remotes *keep;
 456};
 457
 458static int add_branch_for_removal(const char *refname,
 459        const unsigned char *sha1, int flags, void *cb_data)
 460{
 461        struct branches_for_remote *branches = cb_data;
 462        struct refspec refspec;
 463        struct string_list_item *item;
 464        struct known_remote *kr;
 465
 466        memset(&refspec, 0, sizeof(refspec));
 467        refspec.dst = (char *)refname;
 468        if (remote_find_tracking(branches->remote, &refspec))
 469                return 0;
 470
 471        /* don't delete a branch if another remote also uses it */
 472        for (kr = branches->keep->list; kr; kr = kr->next) {
 473                memset(&refspec, 0, sizeof(refspec));
 474                refspec.dst = (char *)refname;
 475                if (!remote_find_tracking(kr->remote, &refspec))
 476                        return 0;
 477        }
 478
 479        /* don't delete non-remote refs */
 480        if (prefixcmp(refname, "refs/remotes")) {
 481                /* advise user how to delete local branches */
 482                if (!prefixcmp(refname, "refs/heads/"))
 483                        string_list_append(abbrev_branch(refname),
 484                                           branches->skipped);
 485                /* silently skip over other non-remote refs */
 486                return 0;
 487        }
 488
 489        /* make sure that symrefs are deleted */
 490        if (flags & REF_ISSYMREF)
 491                return unlink(git_path("%s", refname));
 492
 493        item = string_list_append(refname, branches->branches);
 494        item->util = xmalloc(20);
 495        hashcpy(item->util, sha1);
 496
 497        return 0;
 498}
 499
 500struct rename_info {
 501        const char *old;
 502        const char *new;
 503        struct string_list *remote_branches;
 504};
 505
 506static int read_remote_branches(const char *refname,
 507        const unsigned char *sha1, int flags, void *cb_data)
 508{
 509        struct rename_info *rename = cb_data;
 510        struct strbuf buf = STRBUF_INIT;
 511        struct string_list_item *item;
 512        int flag;
 513        unsigned char orig_sha1[20];
 514        const char *symref;
 515
 516        strbuf_addf(&buf, "refs/remotes/%s", rename->old);
 517        if (!prefixcmp(refname, buf.buf)) {
 518                item = string_list_append(xstrdup(refname), rename->remote_branches);
 519                symref = resolve_ref(refname, orig_sha1, 1, &flag);
 520                if (flag & REF_ISSYMREF)
 521                        item->util = xstrdup(symref);
 522                else
 523                        item->util = NULL;
 524        }
 525
 526        return 0;
 527}
 528
 529static int migrate_file(struct remote *remote)
 530{
 531        struct strbuf buf = STRBUF_INIT;
 532        int i;
 533        char *path = NULL;
 534
 535        strbuf_addf(&buf, "remote.%s.url", remote->name);
 536        for (i = 0; i < remote->url_nr; i++)
 537                if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0))
 538                        return error("Could not append '%s' to '%s'",
 539                                        remote->url[i], buf.buf);
 540        strbuf_reset(&buf);
 541        strbuf_addf(&buf, "remote.%s.push", remote->name);
 542        for (i = 0; i < remote->push_refspec_nr; i++)
 543                if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0))
 544                        return error("Could not append '%s' to '%s'",
 545                                        remote->push_refspec[i], buf.buf);
 546        strbuf_reset(&buf);
 547        strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 548        for (i = 0; i < remote->fetch_refspec_nr; i++)
 549                if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0))
 550                        return error("Could not append '%s' to '%s'",
 551                                        remote->fetch_refspec[i], buf.buf);
 552        if (remote->origin == REMOTE_REMOTES)
 553                path = git_path("remotes/%s", remote->name);
 554        else if (remote->origin == REMOTE_BRANCHES)
 555                path = git_path("branches/%s", remote->name);
 556        if (path)
 557                unlink_or_warn(path);
 558        return 0;
 559}
 560
 561static int mv(int argc, const char **argv)
 562{
 563        struct option options[] = {
 564                OPT_END()
 565        };
 566        struct remote *oldremote, *newremote;
 567        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT;
 568        struct string_list remote_branches = { NULL, 0, 0, 0 };
 569        struct rename_info rename;
 570        int i;
 571
 572        if (argc != 3)
 573                usage_with_options(builtin_remote_rename_usage, options);
 574
 575        rename.old = argv[1];
 576        rename.new = argv[2];
 577        rename.remote_branches = &remote_branches;
 578
 579        oldremote = remote_get(rename.old);
 580        if (!oldremote)
 581                die("No such remote: %s", rename.old);
 582
 583        if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
 584                return migrate_file(oldremote);
 585
 586        newremote = remote_get(rename.new);
 587        if (newremote && (newremote->url_nr > 1 || newremote->fetch_refspec_nr))
 588                die("remote %s already exists.", rename.new);
 589
 590        strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
 591        if (!valid_fetch_refspec(buf.buf))
 592                die("'%s' is not a valid remote name", rename.new);
 593
 594        strbuf_reset(&buf);
 595        strbuf_addf(&buf, "remote.%s", rename.old);
 596        strbuf_addf(&buf2, "remote.%s", rename.new);
 597        if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 598                return error("Could not rename config section '%s' to '%s'",
 599                                buf.buf, buf2.buf);
 600
 601        strbuf_reset(&buf);
 602        strbuf_addf(&buf, "remote.%s.fetch", rename.new);
 603        if (git_config_set_multivar(buf.buf, NULL, NULL, 1))
 604                return error("Could not remove config section '%s'", buf.buf);
 605        for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 606                char *ptr;
 607
 608                strbuf_reset(&buf2);
 609                strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 610                ptr = strstr(buf2.buf, rename.old);
 611                if (ptr)
 612                        strbuf_splice(&buf2, ptr-buf2.buf, strlen(rename.old),
 613                                        rename.new, strlen(rename.new));
 614                if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 615                        return error("Could not append '%s'", buf.buf);
 616        }
 617
 618        read_branches();
 619        for (i = 0; i < branch_list.nr; i++) {
 620                struct string_list_item *item = branch_list.items + i;
 621                struct branch_info *info = item->util;
 622                if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 623                        strbuf_reset(&buf);
 624                        strbuf_addf(&buf, "branch.%s.remote", item->string);
 625                        if (git_config_set(buf.buf, rename.new)) {
 626                                return error("Could not set '%s'", buf.buf);
 627                        }
 628                }
 629        }
 630
 631        /*
 632         * First remove symrefs, then rename the rest, finally create
 633         * the new symrefs.
 634         */
 635        for_each_ref(read_remote_branches, &rename);
 636        for (i = 0; i < remote_branches.nr; i++) {
 637                struct string_list_item *item = remote_branches.items + i;
 638                int flag = 0;
 639                unsigned char sha1[20];
 640
 641                resolve_ref(item->string, sha1, 1, &flag);
 642                if (!(flag & REF_ISSYMREF))
 643                        continue;
 644                if (delete_ref(item->string, NULL, REF_NODEREF))
 645                        die("deleting '%s' failed", item->string);
 646        }
 647        for (i = 0; i < remote_branches.nr; i++) {
 648                struct string_list_item *item = remote_branches.items + i;
 649
 650                if (item->util)
 651                        continue;
 652                strbuf_reset(&buf);
 653                strbuf_addstr(&buf, item->string);
 654                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 655                                rename.new, strlen(rename.new));
 656                strbuf_reset(&buf2);
 657                strbuf_addf(&buf2, "remote: renamed %s to %s",
 658                                item->string, buf.buf);
 659                if (rename_ref(item->string, buf.buf, buf2.buf))
 660                        die("renaming '%s' failed", item->string);
 661        }
 662        for (i = 0; i < remote_branches.nr; i++) {
 663                struct string_list_item *item = remote_branches.items + i;
 664
 665                if (!item->util)
 666                        continue;
 667                strbuf_reset(&buf);
 668                strbuf_addstr(&buf, item->string);
 669                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 670                                rename.new, strlen(rename.new));
 671                strbuf_reset(&buf2);
 672                strbuf_addstr(&buf2, item->util);
 673                strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
 674                                rename.new, strlen(rename.new));
 675                strbuf_reset(&buf3);
 676                strbuf_addf(&buf3, "remote: renamed %s to %s",
 677                                item->string, buf.buf);
 678                if (create_symref(buf.buf, buf2.buf, buf3.buf))
 679                        die("creating '%s' failed", buf.buf);
 680        }
 681        return 0;
 682}
 683
 684static int remove_branches(struct string_list *branches)
 685{
 686        int i, result = 0;
 687        for (i = 0; i < branches->nr; i++) {
 688                struct string_list_item *item = branches->items + i;
 689                const char *refname = item->string;
 690                unsigned char *sha1 = item->util;
 691
 692                if (delete_ref(refname, sha1, 0))
 693                        result |= error("Could not remove branch %s", refname);
 694        }
 695        return result;
 696}
 697
 698static int rm(int argc, const char **argv)
 699{
 700        struct option options[] = {
 701                OPT_END()
 702        };
 703        struct remote *remote;
 704        struct strbuf buf = STRBUF_INIT;
 705        struct known_remotes known_remotes = { NULL, NULL };
 706        struct string_list branches = { NULL, 0, 0, 1 };
 707        struct string_list skipped = { NULL, 0, 0, 1 };
 708        struct branches_for_remote cb_data = {
 709                NULL, &branches, &skipped, &known_remotes
 710        };
 711        int i, result;
 712
 713        if (argc != 2)
 714                usage_with_options(builtin_remote_rm_usage, options);
 715
 716        remote = remote_get(argv[1]);
 717        if (!remote)
 718                die("No such remote: %s", argv[1]);
 719
 720        known_remotes.to_delete = remote;
 721        for_each_remote(add_known_remote, &known_remotes);
 722
 723        strbuf_addf(&buf, "remote.%s", remote->name);
 724        if (git_config_rename_section(buf.buf, NULL) < 1)
 725                return error("Could not remove config section '%s'", buf.buf);
 726
 727        read_branches();
 728        for (i = 0; i < branch_list.nr; i++) {
 729                struct string_list_item *item = branch_list.items + i;
 730                struct branch_info *info = item->util;
 731                if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 732                        const char *keys[] = { "remote", "merge", NULL }, **k;
 733                        for (k = keys; *k; k++) {
 734                                strbuf_reset(&buf);
 735                                strbuf_addf(&buf, "branch.%s.%s",
 736                                                item->string, *k);
 737                                if (git_config_set(buf.buf, NULL)) {
 738                                        strbuf_release(&buf);
 739                                        return -1;
 740                                }
 741                        }
 742                }
 743        }
 744
 745        /*
 746         * We cannot just pass a function to for_each_ref() which deletes
 747         * the branches one by one, since for_each_ref() relies on cached
 748         * refs, which are invalidated when deleting a branch.
 749         */
 750        cb_data.remote = remote;
 751        result = for_each_ref(add_branch_for_removal, &cb_data);
 752        strbuf_release(&buf);
 753
 754        if (!result)
 755                result = remove_branches(&branches);
 756        string_list_clear(&branches, 1);
 757
 758        if (skipped.nr) {
 759                fprintf(stderr, skipped.nr == 1 ?
 760                        "Note: A non-remote branch was not removed; "
 761                        "to delete it, use:\n" :
 762                        "Note: Non-remote branches were not removed; "
 763                        "to delete them, use:\n");
 764                for (i = 0; i < skipped.nr; i++)
 765                        fprintf(stderr, "  git branch -d %s\n",
 766                                skipped.items[i].string);
 767        }
 768        string_list_clear(&skipped, 0);
 769
 770        return result;
 771}
 772
 773static void clear_push_info(void *util, const char *string)
 774{
 775        struct push_info *info = util;
 776        free(info->dest);
 777        free(info);
 778}
 779
 780static void free_remote_ref_states(struct ref_states *states)
 781{
 782        string_list_clear(&states->new, 0);
 783        string_list_clear(&states->stale, 1);
 784        string_list_clear(&states->tracked, 0);
 785        string_list_clear(&states->heads, 0);
 786        string_list_clear_func(&states->push, clear_push_info);
 787}
 788
 789static int append_ref_to_tracked_list(const char *refname,
 790        const unsigned char *sha1, int flags, void *cb_data)
 791{
 792        struct ref_states *states = cb_data;
 793        struct refspec refspec;
 794
 795        if (flags & REF_ISSYMREF)
 796                return 0;
 797
 798        memset(&refspec, 0, sizeof(refspec));
 799        refspec.dst = (char *)refname;
 800        if (!remote_find_tracking(states->remote, &refspec))
 801                string_list_append(abbrev_branch(refspec.src), &states->tracked);
 802
 803        return 0;
 804}
 805
 806static int get_remote_ref_states(const char *name,
 807                                 struct ref_states *states,
 808                                 int query)
 809{
 810        struct transport *transport;
 811        const struct ref *remote_refs;
 812
 813        states->remote = remote_get(name);
 814        if (!states->remote)
 815                return error("No such remote: %s", name);
 816
 817        read_branches();
 818
 819        if (query) {
 820                transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 821                        states->remote->url[0] : NULL);
 822                remote_refs = transport_get_remote_refs(transport);
 823                transport_disconnect(transport);
 824
 825                states->queried = 1;
 826                if (query & GET_REF_STATES)
 827                        get_ref_states(remote_refs, states);
 828                if (query & GET_HEAD_NAMES)
 829                        get_head_names(remote_refs, states);
 830                if (query & GET_PUSH_REF_STATES)
 831                        get_push_ref_states(remote_refs, states);
 832        } else {
 833                for_each_ref(append_ref_to_tracked_list, states);
 834                sort_string_list(&states->tracked);
 835                get_push_ref_states_noquery(states);
 836        }
 837
 838        return 0;
 839}
 840
 841struct show_info {
 842        struct string_list *list;
 843        struct ref_states *states;
 844        int width, width2;
 845        int any_rebase;
 846};
 847
 848static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 849{
 850        struct show_info *info = cb_data;
 851        int n = strlen(item->string);
 852        if (n > info->width)
 853                info->width = n;
 854        string_list_insert(item->string, info->list);
 855        return 0;
 856}
 857
 858static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 859{
 860        struct show_info *info = cb_data;
 861        struct ref_states *states = info->states;
 862        const char *name = item->string;
 863
 864        if (states->queried) {
 865                const char *fmt = "%s";
 866                const char *arg = "";
 867                if (string_list_has_string(&states->new, name)) {
 868                        fmt = " new (next fetch will store in remotes/%s)";
 869                        arg = states->remote->name;
 870                } else if (string_list_has_string(&states->tracked, name))
 871                        arg = " tracked";
 872                else if (string_list_has_string(&states->stale, name))
 873                        arg = " stale (use 'git remote prune' to remove)";
 874                else
 875                        arg = " ???";
 876                printf("    %-*s", info->width, name);
 877                printf(fmt, arg);
 878                printf("\n");
 879        } else
 880                printf("    %s\n", name);
 881
 882        return 0;
 883}
 884
 885static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 886{
 887        struct show_info *show_info = cb_data;
 888        struct ref_states *states = show_info->states;
 889        struct branch_info *branch_info = branch_item->util;
 890        struct string_list_item *item;
 891        int n;
 892
 893        if (!branch_info->merge.nr || !branch_info->remote_name ||
 894            strcmp(states->remote->name, branch_info->remote_name))
 895                return 0;
 896        if ((n = strlen(branch_item->string)) > show_info->width)
 897                show_info->width = n;
 898        if (branch_info->rebase)
 899                show_info->any_rebase = 1;
 900
 901        item = string_list_insert(branch_item->string, show_info->list);
 902        item->util = branch_info;
 903
 904        return 0;
 905}
 906
 907static int show_local_info_item(struct string_list_item *item, void *cb_data)
 908{
 909        struct show_info *show_info = cb_data;
 910        struct branch_info *branch_info = item->util;
 911        struct string_list *merge = &branch_info->merge;
 912        const char *also;
 913        int i;
 914
 915        if (branch_info->rebase && branch_info->merge.nr > 1) {
 916                error("invalid branch.%s.merge; cannot rebase onto > 1 branch",
 917                        item->string);
 918                return 0;
 919        }
 920
 921        printf("    %-*s ", show_info->width, item->string);
 922        if (branch_info->rebase) {
 923                printf("rebases onto remote %s\n", merge->items[0].string);
 924                return 0;
 925        } else if (show_info->any_rebase) {
 926                printf(" merges with remote %s\n", merge->items[0].string);
 927                also = "    and with remote";
 928        } else {
 929                printf("merges with remote %s\n", merge->items[0].string);
 930                also = "   and with remote";
 931        }
 932        for (i = 1; i < merge->nr; i++)
 933                printf("    %-*s %s %s\n", show_info->width, "", also,
 934                       merge->items[i].string);
 935
 936        return 0;
 937}
 938
 939static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
 940{
 941        struct show_info *show_info = cb_data;
 942        struct push_info *push_info = push_item->util;
 943        struct string_list_item *item;
 944        int n;
 945        if ((n = strlen(push_item->string)) > show_info->width)
 946                show_info->width = n;
 947        if ((n = strlen(push_info->dest)) > show_info->width2)
 948                show_info->width2 = n;
 949        item = string_list_append(push_item->string, show_info->list);
 950        item->util = push_item->util;
 951        return 0;
 952}
 953
 954/*
 955 * Sorting comparison for a string list that has push_info
 956 * structs in its util field
 957 */
 958static int cmp_string_with_push(const void *va, const void *vb)
 959{
 960        const struct string_list_item *a = va;
 961        const struct string_list_item *b = vb;
 962        const struct push_info *a_push = a->util;
 963        const struct push_info *b_push = b->util;
 964        int cmp = strcmp(a->string, b->string);
 965        return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
 966}
 967
 968static int show_push_info_item(struct string_list_item *item, void *cb_data)
 969{
 970        struct show_info *show_info = cb_data;
 971        struct push_info *push_info = item->util;
 972        char *src = item->string, *status = NULL;
 973
 974        switch (push_info->status) {
 975        case PUSH_STATUS_CREATE:
 976                status = "create";
 977                break;
 978        case PUSH_STATUS_DELETE:
 979                status = "delete";
 980                src = "(none)";
 981                break;
 982        case PUSH_STATUS_UPTODATE:
 983                status = "up to date";
 984                break;
 985        case PUSH_STATUS_FASTFORWARD:
 986                status = "fast-forwardable";
 987                break;
 988        case PUSH_STATUS_OUTOFDATE:
 989                status = "local out of date";
 990                break;
 991        case PUSH_STATUS_NOTQUERIED:
 992                break;
 993        }
 994        if (status)
 995                printf("    %-*s %s to %-*s (%s)\n", show_info->width, src,
 996                        push_info->forced ? "forces" : "pushes",
 997                        show_info->width2, push_info->dest, status);
 998        else
 999                printf("    %-*s %s to %s\n", show_info->width, src,
1000                        push_info->forced ? "forces" : "pushes",
1001                        push_info->dest);
1002        return 0;
1003}
1004
1005static int show(int argc, const char **argv)
1006{
1007        int no_query = 0, result = 0, query_flag = 0;
1008        struct option options[] = {
1009                OPT_BOOLEAN('n', NULL, &no_query, "do not query remotes"),
1010                OPT_END()
1011        };
1012        struct ref_states states;
1013        struct string_list info_list = { NULL, 0, 0, 0 };
1014        struct show_info info;
1015
1016        argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1017                             0);
1018
1019        if (argc < 1)
1020                return show_all();
1021
1022        if (!no_query)
1023                query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1024
1025        memset(&states, 0, sizeof(states));
1026        memset(&info, 0, sizeof(info));
1027        info.states = &states;
1028        info.list = &info_list;
1029        for (; argc; argc--, argv++) {
1030                int i;
1031                const char **url;
1032                int url_nr;
1033
1034                get_remote_ref_states(*argv, &states, query_flag);
1035
1036                printf("* remote %s\n", *argv);
1037                printf("  Fetch URL: %s\n", states.remote->url_nr > 0 ?
1038                        states.remote->url[0] : "(no URL)");
1039                if (states.remote->pushurl_nr) {
1040                        url = states.remote->pushurl;
1041                        url_nr = states.remote->pushurl_nr;
1042                } else {
1043                        url = states.remote->url;
1044                        url_nr = states.remote->url_nr;
1045                }
1046                for (i=0; i < url_nr; i++)
1047                        printf("  Push  URL: %s\n", url[i]);
1048                if (!i)
1049                        printf("  Push  URL: %s\n", "(no URL)");
1050                if (no_query)
1051                        printf("  HEAD branch: (not queried)\n");
1052                else if (!states.heads.nr)
1053                        printf("  HEAD branch: (unknown)\n");
1054                else if (states.heads.nr == 1)
1055                        printf("  HEAD branch: %s\n", states.heads.items[0].string);
1056                else {
1057                        printf("  HEAD branch (remote HEAD is ambiguous,"
1058                               " may be one of the following):\n");
1059                        for (i = 0; i < states.heads.nr; i++)
1060                                printf("    %s\n", states.heads.items[i].string);
1061                }
1062
1063                /* remote branch info */
1064                info.width = 0;
1065                for_each_string_list(add_remote_to_show_info, &states.new, &info);
1066                for_each_string_list(add_remote_to_show_info, &states.tracked, &info);
1067                for_each_string_list(add_remote_to_show_info, &states.stale, &info);
1068                if (info.list->nr)
1069                        printf("  Remote branch%s:%s\n",
1070                               info.list->nr > 1 ? "es" : "",
1071                                no_query ? " (status not queried)" : "");
1072                for_each_string_list(show_remote_info_item, info.list, &info);
1073                string_list_clear(info.list, 0);
1074
1075                /* git pull info */
1076                info.width = 0;
1077                info.any_rebase = 0;
1078                for_each_string_list(add_local_to_show_info, &branch_list, &info);
1079                if (info.list->nr)
1080                        printf("  Local branch%s configured for 'git pull':\n",
1081                               info.list->nr > 1 ? "es" : "");
1082                for_each_string_list(show_local_info_item, info.list, &info);
1083                string_list_clear(info.list, 0);
1084
1085                /* git push info */
1086                if (states.remote->mirror)
1087                        printf("  Local refs will be mirrored by 'git push'\n");
1088
1089                info.width = info.width2 = 0;
1090                for_each_string_list(add_push_to_show_info, &states.push, &info);
1091                qsort(info.list->items, info.list->nr,
1092                        sizeof(*info.list->items), cmp_string_with_push);
1093                if (info.list->nr)
1094                        printf("  Local ref%s configured for 'git push'%s:\n",
1095                                info.list->nr > 1 ? "s" : "",
1096                                no_query ? " (status not queried)" : "");
1097                for_each_string_list(show_push_info_item, info.list, &info);
1098                string_list_clear(info.list, 0);
1099
1100                free_remote_ref_states(&states);
1101        }
1102
1103        return result;
1104}
1105
1106static int set_head(int argc, const char **argv)
1107{
1108        int i, opt_a = 0, opt_d = 0, result = 0;
1109        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1110        char *head_name = NULL;
1111
1112        struct option options[] = {
1113                OPT_BOOLEAN('a', "auto", &opt_a,
1114                            "set refs/remotes/<name>/HEAD according to remote"),
1115                OPT_BOOLEAN('d', "delete", &opt_d,
1116                            "delete refs/remotes/<name>/HEAD"),
1117                OPT_END()
1118        };
1119        argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1120                             0);
1121        if (argc)
1122                strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1123
1124        if (!opt_a && !opt_d && argc == 2) {
1125                head_name = xstrdup(argv[1]);
1126        } else if (opt_a && !opt_d && argc == 1) {
1127                struct ref_states states;
1128                memset(&states, 0, sizeof(states));
1129                get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1130                if (!states.heads.nr)
1131                        result |= error("Cannot determine remote HEAD");
1132                else if (states.heads.nr > 1) {
1133                        result |= error("Multiple remote HEAD branches. "
1134                                        "Please choose one explicitly with:");
1135                        for (i = 0; i < states.heads.nr; i++)
1136                                fprintf(stderr, "  git remote set-head %s %s\n",
1137                                        argv[0], states.heads.items[i].string);
1138                } else
1139                        head_name = xstrdup(states.heads.items[0].string);
1140                free_remote_ref_states(&states);
1141        } else if (opt_d && !opt_a && argc == 1) {
1142                if (delete_ref(buf.buf, NULL, REF_NODEREF))
1143                        result |= error("Could not delete %s", buf.buf);
1144        } else
1145                usage_with_options(builtin_remote_sethead_usage, options);
1146
1147        if (head_name) {
1148                unsigned char sha1[20];
1149                strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1150                /* make sure it's valid */
1151                if (!resolve_ref(buf2.buf, sha1, 1, NULL))
1152                        result |= error("Not a valid ref: %s", buf2.buf);
1153                else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1154                        result |= error("Could not setup %s", buf.buf);
1155                if (opt_a)
1156                        printf("%s/HEAD set to %s\n", argv[0], head_name);
1157                free(head_name);
1158        }
1159
1160        strbuf_release(&buf);
1161        strbuf_release(&buf2);
1162        return result;
1163}
1164
1165static int prune(int argc, const char **argv)
1166{
1167        int dry_run = 0, result = 0;
1168        struct option options[] = {
1169                OPT__DRY_RUN(&dry_run),
1170                OPT_END()
1171        };
1172
1173        argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1174                             0);
1175
1176        if (argc < 1)
1177                usage_with_options(builtin_remote_prune_usage, options);
1178
1179        for (; argc; argc--, argv++)
1180                result |= prune_remote(*argv, dry_run);
1181
1182        return result;
1183}
1184
1185static int prune_remote(const char *remote, int dry_run)
1186{
1187        int result = 0, i;
1188        struct ref_states states;
1189        const char *dangling_msg = dry_run
1190                ? " %s will become dangling!\n"
1191                : " %s has become dangling!\n";
1192
1193        memset(&states, 0, sizeof(states));
1194        get_remote_ref_states(remote, &states, GET_REF_STATES);
1195
1196        if (states.stale.nr) {
1197                printf("Pruning %s\n", remote);
1198                printf("URL: %s\n",
1199                       states.remote->url_nr
1200                       ? states.remote->url[0]
1201                       : "(no URL)");
1202        }
1203
1204        for (i = 0; i < states.stale.nr; i++) {
1205                const char *refname = states.stale.items[i].util;
1206
1207                if (!dry_run)
1208                        result |= delete_ref(refname, NULL, 0);
1209
1210                printf(" * [%s] %s\n", dry_run ? "would prune" : "pruned",
1211                       abbrev_ref(refname, "refs/remotes/"));
1212                warn_dangling_symref(stdout, dangling_msg, refname);
1213        }
1214
1215        free_remote_ref_states(&states);
1216        return result;
1217}
1218
1219static int get_remote_default(const char *key, const char *value, void *priv)
1220{
1221        if (strcmp(key, "remotes.default") == 0) {
1222                int *found = priv;
1223                *found = 1;
1224        }
1225        return 0;
1226}
1227
1228static int update(int argc, const char **argv)
1229{
1230        int i, prune = 0;
1231        struct option options[] = {
1232                OPT_BOOLEAN('p', "prune", &prune,
1233                            "prune remotes after fetching"),
1234                OPT_END()
1235        };
1236        const char **fetch_argv;
1237        int fetch_argc = 0;
1238        int default_defined = 0;
1239
1240        fetch_argv = xmalloc(sizeof(char *) * (argc+5));
1241
1242        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1243                             PARSE_OPT_KEEP_ARGV0);
1244
1245        fetch_argv[fetch_argc++] = "fetch";
1246
1247        if (prune)
1248                fetch_argv[fetch_argc++] = "--prune";
1249        if (verbose)
1250                fetch_argv[fetch_argc++] = "-v";
1251        fetch_argv[fetch_argc++] = "--multiple";
1252        if (argc < 2)
1253                fetch_argv[fetch_argc++] = "default";
1254        for (i = 1; i < argc; i++)
1255                fetch_argv[fetch_argc++] = argv[i];
1256
1257        if (strcmp(fetch_argv[fetch_argc-1], "default") == 0) {
1258                git_config(get_remote_default, &default_defined);
1259                if (!default_defined)
1260                        fetch_argv[fetch_argc-1] = "--all";
1261        }
1262
1263        fetch_argv[fetch_argc] = NULL;
1264
1265        return run_command_v_opt(fetch_argv, RUN_GIT_CMD);
1266}
1267
1268static int set_url(int argc, const char **argv)
1269{
1270        int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1271        int matches = 0, negative_matches = 0;
1272        const char *remotename = NULL;
1273        const char *newurl = NULL;
1274        const char *oldurl = NULL;
1275        struct remote *remote;
1276        regex_t old_regex;
1277        const char **urlset;
1278        int urlset_nr;
1279        struct strbuf name_buf = STRBUF_INIT;
1280        struct option options[] = {
1281                OPT_BOOLEAN('\0', "push", &push_mode,
1282                            "manipulate push URLs"),
1283                OPT_BOOLEAN('\0', "add", &add_mode,
1284                            "add URL"),
1285                OPT_BOOLEAN('\0', "delete", &delete_mode,
1286                            "delete URLs"),
1287                OPT_END()
1288        };
1289        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1290                             PARSE_OPT_KEEP_ARGV0);
1291
1292        if (add_mode && delete_mode)
1293                die("--add --delete doesn't make sense");
1294
1295        if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1296                usage_with_options(builtin_remote_seturl_usage, options);
1297
1298        remotename = argv[1];
1299        newurl = argv[2];
1300        if (argc > 3)
1301                oldurl = argv[3];
1302
1303        if (delete_mode)
1304                oldurl = newurl;
1305
1306        if (!remote_is_configured(remotename))
1307                die("No such remote '%s'", remotename);
1308        remote = remote_get(remotename);
1309
1310        if (push_mode) {
1311                strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1312                urlset = remote->pushurl;
1313                urlset_nr = remote->pushurl_nr;
1314        } else {
1315                strbuf_addf(&name_buf, "remote.%s.url", remotename);
1316                urlset = remote->url;
1317                urlset_nr = remote->url_nr;
1318        }
1319
1320        /* Special cases that add new entry. */
1321        if ((!oldurl && !delete_mode) || add_mode) {
1322                if (add_mode)
1323                        git_config_set_multivar(name_buf.buf, newurl,
1324                                "^$", 0);
1325                else
1326                        git_config_set(name_buf.buf, newurl);
1327                strbuf_release(&name_buf);
1328                return 0;
1329        }
1330
1331        /* Old URL specified. Demand that one matches. */
1332        if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1333                die("Invalid old URL pattern: %s", oldurl);
1334
1335        for (i = 0; i < urlset_nr; i++)
1336                if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1337                        matches++;
1338                else
1339                        negative_matches++;
1340        if (!delete_mode && !matches)
1341                die("No such URL found: %s", oldurl);
1342        if (delete_mode && !negative_matches && !push_mode)
1343                die("Will not delete all non-push URLs");
1344
1345        regfree(&old_regex);
1346
1347        if (!delete_mode)
1348                git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1349        else
1350                git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1351        return 0;
1352}
1353
1354static int get_one_entry(struct remote *remote, void *priv)
1355{
1356        struct string_list *list = priv;
1357        struct strbuf url_buf = STRBUF_INIT;
1358        const char **url;
1359        int i, url_nr;
1360
1361        if (remote->url_nr > 0) {
1362                strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1363                string_list_append(remote->name, list)->util =
1364                                strbuf_detach(&url_buf, NULL);
1365        } else
1366                string_list_append(remote->name, list)->util = NULL;
1367        if (remote->pushurl_nr) {
1368                url = remote->pushurl;
1369                url_nr = remote->pushurl_nr;
1370        } else {
1371                url = remote->url;
1372                url_nr = remote->url_nr;
1373        }
1374        for (i = 0; i < url_nr; i++)
1375        {
1376                strbuf_addf(&url_buf, "%s (push)", url[i]);
1377                string_list_append(remote->name, list)->util =
1378                                strbuf_detach(&url_buf, NULL);
1379        }
1380
1381        return 0;
1382}
1383
1384static int show_all(void)
1385{
1386        struct string_list list = { NULL, 0, 0 };
1387        int result;
1388
1389        list.strdup_strings = 1;
1390        result = for_each_remote(get_one_entry, &list);
1391
1392        if (!result) {
1393                int i;
1394
1395                sort_string_list(&list);
1396                for (i = 0; i < list.nr; i++) {
1397                        struct string_list_item *item = list.items + i;
1398                        if (verbose)
1399                                printf("%s\t%s\n", item->string,
1400                                        item->util ? (const char *)item->util : "");
1401                        else {
1402                                if (i && !strcmp((item - 1)->string, item->string))
1403                                        continue;
1404                                printf("%s\n", item->string);
1405                        }
1406                }
1407        }
1408        string_list_clear(&list, 1);
1409        return result;
1410}
1411
1412int cmd_remote(int argc, const char **argv, const char *prefix)
1413{
1414        struct option options[] = {
1415                OPT_BOOLEAN('v', "verbose", &verbose, "be verbose; must be placed before a subcommand"),
1416                OPT_END()
1417        };
1418        int result;
1419
1420        argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1421                PARSE_OPT_STOP_AT_NON_OPTION);
1422
1423        if (argc < 1)
1424                result = show_all();
1425        else if (!strcmp(argv[0], "add"))
1426                result = add(argc, argv);
1427        else if (!strcmp(argv[0], "rename"))
1428                result = mv(argc, argv);
1429        else if (!strcmp(argv[0], "rm"))
1430                result = rm(argc, argv);
1431        else if (!strcmp(argv[0], "set-head"))
1432                result = set_head(argc, argv);
1433        else if (!strcmp(argv[0], "set-url"))
1434                result = set_url(argc, argv);
1435        else if (!strcmp(argv[0], "show"))
1436                result = show(argc, argv);
1437        else if (!strcmp(argv[0], "prune"))
1438                result = prune(argc, argv);
1439        else if (!strcmp(argv[0], "update"))
1440                result = update(argc, argv);
1441        else {
1442                error("Unknown subcommand: %s", argv[0]);
1443                usage_with_options(builtin_remote_usage, options);
1444        }
1445
1446        return result ? 1 : 0;
1447}