builtin / remote.con commit Merge branch 'rs/notes-merge-no-toctou' (d0b6966)
   1#include "builtin.h"
   2#include "parse-options.h"
   3#include "transport.h"
   4#include "remote.h"
   5#include "string-list.h"
   6#include "strbuf.h"
   7#include "run-command.h"
   8#include "refs.h"
   9#include "argv-array.h"
  10
  11static const char * const builtin_remote_usage[] = {
  12        N_("git remote [-v | --verbose]"),
  13        N_("git remote add [-t <branch>] [-m <master>] [-f] [--tags | --no-tags] [--mirror=<fetch|push>] <name> <url>"),
  14        N_("git remote rename <old> <new>"),
  15        N_("git remote remove <name>"),
  16        N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
  17        N_("git remote [-v | --verbose] show [-n] <name>"),
  18        N_("git remote prune [-n | --dry-run] <name>"),
  19        N_("git remote [-v | --verbose] update [-p | --prune] [(<group> | <remote>)...]"),
  20        N_("git remote set-branches [--add] <name> <branch>..."),
  21        N_("git remote get-url [--push] [--all] <name>"),
  22        N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
  23        N_("git remote set-url --add <name> <newurl>"),
  24        N_("git remote set-url --delete <name> <url>"),
  25        NULL
  26};
  27
  28static const char * const builtin_remote_add_usage[] = {
  29        N_("git remote add [<options>] <name> <url>"),
  30        NULL
  31};
  32
  33static const char * const builtin_remote_rename_usage[] = {
  34        N_("git remote rename <old> <new>"),
  35        NULL
  36};
  37
  38static const char * const builtin_remote_rm_usage[] = {
  39        N_("git remote remove <name>"),
  40        NULL
  41};
  42
  43static const char * const builtin_remote_sethead_usage[] = {
  44        N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
  45        NULL
  46};
  47
  48static const char * const builtin_remote_setbranches_usage[] = {
  49        N_("git remote set-branches <name> <branch>..."),
  50        N_("git remote set-branches --add <name> <branch>..."),
  51        NULL
  52};
  53
  54static const char * const builtin_remote_show_usage[] = {
  55        N_("git remote show [<options>] <name>"),
  56        NULL
  57};
  58
  59static const char * const builtin_remote_prune_usage[] = {
  60        N_("git remote prune [<options>] <name>"),
  61        NULL
  62};
  63
  64static const char * const builtin_remote_update_usage[] = {
  65        N_("git remote update [<options>] [<group> | <remote>]..."),
  66        NULL
  67};
  68
  69static const char * const builtin_remote_geturl_usage[] = {
  70        N_("git remote get-url [--push] [--all] <name>"),
  71        NULL
  72};
  73
  74static const char * const builtin_remote_seturl_usage[] = {
  75        N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
  76        N_("git remote set-url --add <name> <newurl>"),
  77        N_("git remote set-url --delete <name> <url>"),
  78        NULL
  79};
  80
  81#define GET_REF_STATES (1<<0)
  82#define GET_HEAD_NAMES (1<<1)
  83#define GET_PUSH_REF_STATES (1<<2)
  84
  85static int verbose;
  86
  87static int fetch_remote(const char *name)
  88{
  89        const char *argv[] = { "fetch", name, NULL, NULL };
  90        if (verbose) {
  91                argv[1] = "-v";
  92                argv[2] = name;
  93        }
  94        printf_ln(_("Updating %s"), name);
  95        if (run_command_v_opt(argv, RUN_GIT_CMD))
  96                return error(_("Could not fetch %s"), name);
  97        return 0;
  98}
  99
 100enum {
 101        TAGS_UNSET = 0,
 102        TAGS_DEFAULT = 1,
 103        TAGS_SET = 2
 104};
 105
 106#define MIRROR_NONE 0
 107#define MIRROR_FETCH 1
 108#define MIRROR_PUSH 2
 109#define MIRROR_BOTH (MIRROR_FETCH|MIRROR_PUSH)
 110
 111static void add_branch(const char *key, const char *branchname,
 112                       const char *remotename, int mirror, struct strbuf *tmp)
 113{
 114        strbuf_reset(tmp);
 115        strbuf_addch(tmp, '+');
 116        if (mirror)
 117                strbuf_addf(tmp, "refs/%s:refs/%s",
 118                                branchname, branchname);
 119        else
 120                strbuf_addf(tmp, "refs/heads/%s:refs/remotes/%s/%s",
 121                                branchname, remotename, branchname);
 122        git_config_set_multivar(key, tmp->buf, "^$", 0);
 123}
 124
 125static const char mirror_advice[] =
 126N_("--mirror is dangerous and deprecated; please\n"
 127   "\t use --mirror=fetch or --mirror=push instead");
 128
 129static int parse_mirror_opt(const struct option *opt, const char *arg, int not)
 130{
 131        unsigned *mirror = opt->value;
 132        if (not)
 133                *mirror = MIRROR_NONE;
 134        else if (!arg) {
 135                warning("%s", _(mirror_advice));
 136                *mirror = MIRROR_BOTH;
 137        }
 138        else if (!strcmp(arg, "fetch"))
 139                *mirror = MIRROR_FETCH;
 140        else if (!strcmp(arg, "push"))
 141                *mirror = MIRROR_PUSH;
 142        else
 143                return error(_("unknown mirror argument: %s"), arg);
 144        return 0;
 145}
 146
 147static int add(int argc, const char **argv)
 148{
 149        int fetch = 0, fetch_tags = TAGS_DEFAULT;
 150        unsigned mirror = MIRROR_NONE;
 151        struct string_list track = STRING_LIST_INIT_NODUP;
 152        const char *master = NULL;
 153        struct remote *remote;
 154        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
 155        const char *name, *url;
 156        int i;
 157
 158        struct option options[] = {
 159                OPT_BOOL('f', "fetch", &fetch, N_("fetch the remote branches")),
 160                OPT_SET_INT(0, "tags", &fetch_tags,
 161                            N_("import all tags and associated objects when fetching"),
 162                            TAGS_SET),
 163                OPT_SET_INT(0, NULL, &fetch_tags,
 164                            N_("or do not fetch any tag at all (--no-tags)"), TAGS_UNSET),
 165                OPT_STRING_LIST('t', "track", &track, N_("branch"),
 166                                N_("branch(es) to track")),
 167                OPT_STRING('m', "master", &master, N_("branch"), N_("master branch")),
 168                { OPTION_CALLBACK, 0, "mirror", &mirror, N_("push|fetch"),
 169                        N_("set up remote as a mirror to push to or fetch from"),
 170                        PARSE_OPT_OPTARG, parse_mirror_opt },
 171                OPT_END()
 172        };
 173
 174        argc = parse_options(argc, argv, NULL, options, builtin_remote_add_usage,
 175                             0);
 176
 177        if (argc != 2)
 178                usage_with_options(builtin_remote_add_usage, options);
 179
 180        if (mirror && master)
 181                die(_("specifying a master branch makes no sense with --mirror"));
 182        if (mirror && !(mirror & MIRROR_FETCH) && track.nr)
 183                die(_("specifying branches to track makes sense only with fetch mirrors"));
 184
 185        name = argv[0];
 186        url = argv[1];
 187
 188        remote = remote_get(name);
 189        if (remote_is_configured(remote))
 190                die(_("remote %s already exists."), name);
 191
 192        strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
 193        if (!valid_fetch_refspec(buf2.buf))
 194                die(_("'%s' is not a valid remote name"), name);
 195
 196        strbuf_addf(&buf, "remote.%s.url", name);
 197        git_config_set(buf.buf, url);
 198
 199        if (!mirror || mirror & MIRROR_FETCH) {
 200                strbuf_reset(&buf);
 201                strbuf_addf(&buf, "remote.%s.fetch", name);
 202                if (track.nr == 0)
 203                        string_list_append(&track, "*");
 204                for (i = 0; i < track.nr; i++) {
 205                        add_branch(buf.buf, track.items[i].string,
 206                                   name, mirror, &buf2);
 207                }
 208        }
 209
 210        if (mirror & MIRROR_PUSH) {
 211                strbuf_reset(&buf);
 212                strbuf_addf(&buf, "remote.%s.mirror", name);
 213                git_config_set(buf.buf, "true");
 214        }
 215
 216        if (fetch_tags != TAGS_DEFAULT) {
 217                strbuf_reset(&buf);
 218                strbuf_addf(&buf, "remote.%s.tagopt", name);
 219                git_config_set(buf.buf,
 220                               fetch_tags == TAGS_SET ? "--tags" : "--no-tags");
 221        }
 222
 223        if (fetch && fetch_remote(name))
 224                return 1;
 225
 226        if (master) {
 227                strbuf_reset(&buf);
 228                strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
 229
 230                strbuf_reset(&buf2);
 231                strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
 232
 233                if (create_symref(buf.buf, buf2.buf, "remote add"))
 234                        return error(_("Could not setup master '%s'"), master);
 235        }
 236
 237        strbuf_release(&buf);
 238        strbuf_release(&buf2);
 239        string_list_clear(&track, 0);
 240
 241        return 0;
 242}
 243
 244struct branch_info {
 245        char *remote_name;
 246        struct string_list merge;
 247        enum { NO_REBASE, NORMAL_REBASE, INTERACTIVE_REBASE } rebase;
 248};
 249
 250static struct string_list branch_list = STRING_LIST_INIT_NODUP;
 251
 252static const char *abbrev_ref(const char *name, const char *prefix)
 253{
 254        skip_prefix(name, prefix, &name);
 255        return name;
 256}
 257#define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 258
 259static int config_read_branches(const char *key, const char *value, void *cb)
 260{
 261        if (starts_with(key, "branch.")) {
 262                const char *orig_key = key;
 263                char *name;
 264                struct string_list_item *item;
 265                struct branch_info *info;
 266                enum { REMOTE, MERGE, REBASE } type;
 267                size_t key_len;
 268
 269                key += 7;
 270                if (strip_suffix(key, ".remote", &key_len)) {
 271                        name = xmemdupz(key, key_len);
 272                        type = REMOTE;
 273                } else if (strip_suffix(key, ".merge", &key_len)) {
 274                        name = xmemdupz(key, key_len);
 275                        type = MERGE;
 276                } else if (strip_suffix(key, ".rebase", &key_len)) {
 277                        name = xmemdupz(key, key_len);
 278                        type = REBASE;
 279                } else
 280                        return 0;
 281
 282                item = string_list_insert(&branch_list, name);
 283
 284                if (!item->util)
 285                        item->util = xcalloc(1, sizeof(struct branch_info));
 286                info = item->util;
 287                if (type == REMOTE) {
 288                        if (info->remote_name)
 289                                warning(_("more than one %s"), orig_key);
 290                        info->remote_name = xstrdup(value);
 291                } else if (type == MERGE) {
 292                        char *space = strchr(value, ' ');
 293                        value = abbrev_branch(value);
 294                        while (space) {
 295                                char *merge;
 296                                merge = xstrndup(value, space - value);
 297                                string_list_append(&info->merge, merge);
 298                                value = abbrev_branch(space + 1);
 299                                space = strchr(value, ' ');
 300                        }
 301                        string_list_append(&info->merge, xstrdup(value));
 302                } else {
 303                        int v = git_config_maybe_bool(orig_key, value);
 304                        if (v >= 0)
 305                                info->rebase = v;
 306                        else if (!strcmp(value, "preserve"))
 307                                info->rebase = NORMAL_REBASE;
 308                        else if (!strcmp(value, "interactive"))
 309                                info->rebase = INTERACTIVE_REBASE;
 310                }
 311        }
 312        return 0;
 313}
 314
 315static void read_branches(void)
 316{
 317        if (branch_list.nr)
 318                return;
 319        git_config(config_read_branches, NULL);
 320}
 321
 322struct ref_states {
 323        struct remote *remote;
 324        struct string_list new, stale, tracked, heads, push;
 325        int queried;
 326};
 327
 328static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 329{
 330        struct ref *fetch_map = NULL, **tail = &fetch_map;
 331        struct ref *ref, *stale_refs;
 332        int i;
 333
 334        for (i = 0; i < states->remote->fetch_refspec_nr; i++)
 335                if (get_fetch_map(remote_refs, states->remote->fetch + i, &tail, 1))
 336                        die(_("Could not get fetch map for refspec %s"),
 337                                states->remote->fetch_refspec[i]);
 338
 339        states->new.strdup_strings = 1;
 340        states->tracked.strdup_strings = 1;
 341        states->stale.strdup_strings = 1;
 342        for (ref = fetch_map; ref; ref = ref->next) {
 343                if (!ref->peer_ref || !ref_exists(ref->peer_ref->name))
 344                        string_list_append(&states->new, abbrev_branch(ref->name));
 345                else
 346                        string_list_append(&states->tracked, abbrev_branch(ref->name));
 347        }
 348        stale_refs = get_stale_heads(states->remote->fetch,
 349                                     states->remote->fetch_refspec_nr, fetch_map);
 350        for (ref = stale_refs; ref; ref = ref->next) {
 351                struct string_list_item *item =
 352                        string_list_append(&states->stale, abbrev_branch(ref->name));
 353                item->util = xstrdup(ref->name);
 354        }
 355        free_refs(stale_refs);
 356        free_refs(fetch_map);
 357
 358        string_list_sort(&states->new);
 359        string_list_sort(&states->tracked);
 360        string_list_sort(&states->stale);
 361
 362        return 0;
 363}
 364
 365struct push_info {
 366        char *dest;
 367        int forced;
 368        enum {
 369                PUSH_STATUS_CREATE = 0,
 370                PUSH_STATUS_DELETE,
 371                PUSH_STATUS_UPTODATE,
 372                PUSH_STATUS_FASTFORWARD,
 373                PUSH_STATUS_OUTOFDATE,
 374                PUSH_STATUS_NOTQUERIED
 375        } status;
 376};
 377
 378static int get_push_ref_states(const struct ref *remote_refs,
 379        struct ref_states *states)
 380{
 381        struct remote *remote = states->remote;
 382        struct ref *ref, *local_refs, *push_map;
 383        if (remote->mirror)
 384                return 0;
 385
 386        local_refs = get_local_heads();
 387        push_map = copy_ref_list(remote_refs);
 388
 389        match_push_refs(local_refs, &push_map, remote->push_refspec_nr,
 390                        remote->push_refspec, MATCH_REFS_NONE);
 391
 392        states->push.strdup_strings = 1;
 393        for (ref = push_map; ref; ref = ref->next) {
 394                struct string_list_item *item;
 395                struct push_info *info;
 396
 397                if (!ref->peer_ref)
 398                        continue;
 399                oidcpy(&ref->new_oid, &ref->peer_ref->new_oid);
 400
 401                item = string_list_append(&states->push,
 402                                          abbrev_branch(ref->peer_ref->name));
 403                item->util = xcalloc(1, sizeof(struct push_info));
 404                info = item->util;
 405                info->forced = ref->force;
 406                info->dest = xstrdup(abbrev_branch(ref->name));
 407
 408                if (is_null_oid(&ref->new_oid)) {
 409                        info->status = PUSH_STATUS_DELETE;
 410                } else if (!oidcmp(&ref->old_oid, &ref->new_oid))
 411                        info->status = PUSH_STATUS_UPTODATE;
 412                else if (is_null_oid(&ref->old_oid))
 413                        info->status = PUSH_STATUS_CREATE;
 414                else if (has_object_file(&ref->old_oid) &&
 415                         ref_newer(&ref->new_oid, &ref->old_oid))
 416                        info->status = PUSH_STATUS_FASTFORWARD;
 417                else
 418                        info->status = PUSH_STATUS_OUTOFDATE;
 419        }
 420        free_refs(local_refs);
 421        free_refs(push_map);
 422        return 0;
 423}
 424
 425static int get_push_ref_states_noquery(struct ref_states *states)
 426{
 427        int i;
 428        struct remote *remote = states->remote;
 429        struct string_list_item *item;
 430        struct push_info *info;
 431
 432        if (remote->mirror)
 433                return 0;
 434
 435        states->push.strdup_strings = 1;
 436        if (!remote->push_refspec_nr) {
 437                item = string_list_append(&states->push, _("(matching)"));
 438                info = item->util = xcalloc(1, sizeof(struct push_info));
 439                info->status = PUSH_STATUS_NOTQUERIED;
 440                info->dest = xstrdup(item->string);
 441        }
 442        for (i = 0; i < remote->push_refspec_nr; i++) {
 443                struct refspec *spec = remote->push + i;
 444                if (spec->matching)
 445                        item = string_list_append(&states->push, _("(matching)"));
 446                else if (strlen(spec->src))
 447                        item = string_list_append(&states->push, spec->src);
 448                else
 449                        item = string_list_append(&states->push, _("(delete)"));
 450
 451                info = item->util = xcalloc(1, sizeof(struct push_info));
 452                info->forced = spec->force;
 453                info->status = PUSH_STATUS_NOTQUERIED;
 454                info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 455        }
 456        return 0;
 457}
 458
 459static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 460{
 461        struct ref *ref, *matches;
 462        struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 463        struct refspec refspec;
 464
 465        refspec.force = 0;
 466        refspec.pattern = 1;
 467        refspec.src = refspec.dst = "refs/heads/*";
 468        states->heads.strdup_strings = 1;
 469        get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 470        matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 471                                    fetch_map, 1);
 472        for (ref = matches; ref; ref = ref->next)
 473                string_list_append(&states->heads, abbrev_branch(ref->name));
 474
 475        free_refs(fetch_map);
 476        free_refs(matches);
 477
 478        return 0;
 479}
 480
 481struct known_remote {
 482        struct known_remote *next;
 483        struct remote *remote;
 484};
 485
 486struct known_remotes {
 487        struct remote *to_delete;
 488        struct known_remote *list;
 489};
 490
 491static int add_known_remote(struct remote *remote, void *cb_data)
 492{
 493        struct known_remotes *all = cb_data;
 494        struct known_remote *r;
 495
 496        if (!strcmp(all->to_delete->name, remote->name))
 497                return 0;
 498
 499        r = xmalloc(sizeof(*r));
 500        r->remote = remote;
 501        r->next = all->list;
 502        all->list = r;
 503        return 0;
 504}
 505
 506struct branches_for_remote {
 507        struct remote *remote;
 508        struct string_list *branches, *skipped;
 509        struct known_remotes *keep;
 510};
 511
 512static int add_branch_for_removal(const char *refname,
 513        const struct object_id *oid, int flags, void *cb_data)
 514{
 515        struct branches_for_remote *branches = cb_data;
 516        struct refspec refspec;
 517        struct known_remote *kr;
 518
 519        memset(&refspec, 0, sizeof(refspec));
 520        refspec.dst = (char *)refname;
 521        if (remote_find_tracking(branches->remote, &refspec))
 522                return 0;
 523
 524        /* don't delete a branch if another remote also uses it */
 525        for (kr = branches->keep->list; kr; kr = kr->next) {
 526                memset(&refspec, 0, sizeof(refspec));
 527                refspec.dst = (char *)refname;
 528                if (!remote_find_tracking(kr->remote, &refspec))
 529                        return 0;
 530        }
 531
 532        /* don't delete non-remote-tracking refs */
 533        if (!starts_with(refname, "refs/remotes/")) {
 534                /* advise user how to delete local branches */
 535                if (starts_with(refname, "refs/heads/"))
 536                        string_list_append(branches->skipped,
 537                                           abbrev_branch(refname));
 538                /* silently skip over other non-remote refs */
 539                return 0;
 540        }
 541
 542        string_list_append(branches->branches, refname);
 543
 544        return 0;
 545}
 546
 547struct rename_info {
 548        const char *old;
 549        const char *new;
 550        struct string_list *remote_branches;
 551};
 552
 553static int read_remote_branches(const char *refname,
 554        const struct object_id *oid, int flags, void *cb_data)
 555{
 556        struct rename_info *rename = cb_data;
 557        struct strbuf buf = STRBUF_INIT;
 558        struct string_list_item *item;
 559        int flag;
 560        struct object_id orig_oid;
 561        const char *symref;
 562
 563        strbuf_addf(&buf, "refs/remotes/%s/", rename->old);
 564        if (starts_with(refname, buf.buf)) {
 565                item = string_list_append(rename->remote_branches, xstrdup(refname));
 566                symref = resolve_ref_unsafe(refname, RESOLVE_REF_READING,
 567                                            orig_oid.hash, &flag);
 568                if (flag & REF_ISSYMREF)
 569                        item->util = xstrdup(symref);
 570                else
 571                        item->util = NULL;
 572        }
 573
 574        return 0;
 575}
 576
 577static int migrate_file(struct remote *remote)
 578{
 579        struct strbuf buf = STRBUF_INIT;
 580        int i;
 581
 582        strbuf_addf(&buf, "remote.%s.url", remote->name);
 583        for (i = 0; i < remote->url_nr; i++)
 584                git_config_set_multivar(buf.buf, remote->url[i], "^$", 0);
 585        strbuf_reset(&buf);
 586        strbuf_addf(&buf, "remote.%s.push", remote->name);
 587        for (i = 0; i < remote->push_refspec_nr; i++)
 588                git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0);
 589        strbuf_reset(&buf);
 590        strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 591        for (i = 0; i < remote->fetch_refspec_nr; i++)
 592                git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0);
 593        if (remote->origin == REMOTE_REMOTES)
 594                unlink_or_warn(git_path("remotes/%s", remote->name));
 595        else if (remote->origin == REMOTE_BRANCHES)
 596                unlink_or_warn(git_path("branches/%s", remote->name));
 597
 598        return 0;
 599}
 600
 601static int mv(int argc, const char **argv)
 602{
 603        struct option options[] = {
 604                OPT_END()
 605        };
 606        struct remote *oldremote, *newremote;
 607        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT,
 608                old_remote_context = STRBUF_INIT;
 609        struct string_list remote_branches = STRING_LIST_INIT_NODUP;
 610        struct rename_info rename;
 611        int i, refspec_updated = 0;
 612
 613        if (argc != 3)
 614                usage_with_options(builtin_remote_rename_usage, options);
 615
 616        rename.old = argv[1];
 617        rename.new = argv[2];
 618        rename.remote_branches = &remote_branches;
 619
 620        oldremote = remote_get(rename.old);
 621        if (!remote_is_configured(oldremote))
 622                die(_("No such remote: %s"), rename.old);
 623
 624        if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
 625                return migrate_file(oldremote);
 626
 627        newremote = remote_get(rename.new);
 628        if (remote_is_configured(newremote))
 629                die(_("remote %s already exists."), rename.new);
 630
 631        strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
 632        if (!valid_fetch_refspec(buf.buf))
 633                die(_("'%s' is not a valid remote name"), rename.new);
 634
 635        strbuf_reset(&buf);
 636        strbuf_addf(&buf, "remote.%s", rename.old);
 637        strbuf_addf(&buf2, "remote.%s", rename.new);
 638        if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 639                return error(_("Could not rename config section '%s' to '%s'"),
 640                                buf.buf, buf2.buf);
 641
 642        strbuf_reset(&buf);
 643        strbuf_addf(&buf, "remote.%s.fetch", rename.new);
 644        git_config_set_multivar(buf.buf, NULL, NULL, 1);
 645        strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old);
 646        for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 647                char *ptr;
 648
 649                strbuf_reset(&buf2);
 650                strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 651                ptr = strstr(buf2.buf, old_remote_context.buf);
 652                if (ptr) {
 653                        refspec_updated = 1;
 654                        strbuf_splice(&buf2,
 655                                      ptr-buf2.buf + strlen(":refs/remotes/"),
 656                                      strlen(rename.old), rename.new,
 657                                      strlen(rename.new));
 658                } else
 659                        warning(_("Not updating non-default fetch refspec\n"
 660                                  "\t%s\n"
 661                                  "\tPlease update the configuration manually if necessary."),
 662                                buf2.buf);
 663
 664                git_config_set_multivar(buf.buf, buf2.buf, "^$", 0);
 665        }
 666
 667        read_branches();
 668        for (i = 0; i < branch_list.nr; i++) {
 669                struct string_list_item *item = branch_list.items + i;
 670                struct branch_info *info = item->util;
 671                if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 672                        strbuf_reset(&buf);
 673                        strbuf_addf(&buf, "branch.%s.remote", item->string);
 674                        git_config_set(buf.buf, rename.new);
 675                }
 676        }
 677
 678        if (!refspec_updated)
 679                return 0;
 680
 681        /*
 682         * First remove symrefs, then rename the rest, finally create
 683         * the new symrefs.
 684         */
 685        for_each_ref(read_remote_branches, &rename);
 686        for (i = 0; i < remote_branches.nr; i++) {
 687                struct string_list_item *item = remote_branches.items + i;
 688                int flag = 0;
 689                struct object_id oid;
 690
 691                read_ref_full(item->string, RESOLVE_REF_READING, oid.hash, &flag);
 692                if (!(flag & REF_ISSYMREF))
 693                        continue;
 694                if (delete_ref(item->string, NULL, REF_NODEREF))
 695                        die(_("deleting '%s' failed"), item->string);
 696        }
 697        for (i = 0; i < remote_branches.nr; i++) {
 698                struct string_list_item *item = remote_branches.items + i;
 699
 700                if (item->util)
 701                        continue;
 702                strbuf_reset(&buf);
 703                strbuf_addstr(&buf, item->string);
 704                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 705                                rename.new, strlen(rename.new));
 706                strbuf_reset(&buf2);
 707                strbuf_addf(&buf2, "remote: renamed %s to %s",
 708                                item->string, buf.buf);
 709                if (rename_ref(item->string, buf.buf, buf2.buf))
 710                        die(_("renaming '%s' failed"), item->string);
 711        }
 712        for (i = 0; i < remote_branches.nr; i++) {
 713                struct string_list_item *item = remote_branches.items + i;
 714
 715                if (!item->util)
 716                        continue;
 717                strbuf_reset(&buf);
 718                strbuf_addstr(&buf, item->string);
 719                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 720                                rename.new, strlen(rename.new));
 721                strbuf_reset(&buf2);
 722                strbuf_addstr(&buf2, item->util);
 723                strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
 724                                rename.new, strlen(rename.new));
 725                strbuf_reset(&buf3);
 726                strbuf_addf(&buf3, "remote: renamed %s to %s",
 727                                item->string, buf.buf);
 728                if (create_symref(buf.buf, buf2.buf, buf3.buf))
 729                        die(_("creating '%s' failed"), buf.buf);
 730        }
 731        return 0;
 732}
 733
 734static int rm(int argc, const char **argv)
 735{
 736        struct option options[] = {
 737                OPT_END()
 738        };
 739        struct remote *remote;
 740        struct strbuf buf = STRBUF_INIT;
 741        struct known_remotes known_remotes = { NULL, NULL };
 742        struct string_list branches = STRING_LIST_INIT_DUP;
 743        struct string_list skipped = STRING_LIST_INIT_DUP;
 744        struct branches_for_remote cb_data;
 745        int i, result;
 746
 747        memset(&cb_data, 0, sizeof(cb_data));
 748        cb_data.branches = &branches;
 749        cb_data.skipped = &skipped;
 750        cb_data.keep = &known_remotes;
 751
 752        if (argc != 2)
 753                usage_with_options(builtin_remote_rm_usage, options);
 754
 755        remote = remote_get(argv[1]);
 756        if (!remote_is_configured(remote))
 757                die(_("No such remote: %s"), argv[1]);
 758
 759        known_remotes.to_delete = remote;
 760        for_each_remote(add_known_remote, &known_remotes);
 761
 762        read_branches();
 763        for (i = 0; i < branch_list.nr; i++) {
 764                struct string_list_item *item = branch_list.items + i;
 765                struct branch_info *info = item->util;
 766                if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 767                        const char *keys[] = { "remote", "merge", NULL }, **k;
 768                        for (k = keys; *k; k++) {
 769                                strbuf_reset(&buf);
 770                                strbuf_addf(&buf, "branch.%s.%s",
 771                                                item->string, *k);
 772                                git_config_set(buf.buf, NULL);
 773                        }
 774                }
 775        }
 776
 777        /*
 778         * We cannot just pass a function to for_each_ref() which deletes
 779         * the branches one by one, since for_each_ref() relies on cached
 780         * refs, which are invalidated when deleting a branch.
 781         */
 782        cb_data.remote = remote;
 783        result = for_each_ref(add_branch_for_removal, &cb_data);
 784        strbuf_release(&buf);
 785
 786        if (!result)
 787                result = delete_refs(&branches, REF_NODEREF);
 788        string_list_clear(&branches, 0);
 789
 790        if (skipped.nr) {
 791                fprintf_ln(stderr,
 792                           Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 793                              "to delete it, use:",
 794                              "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 795                              "to delete them, use:",
 796                              skipped.nr));
 797                for (i = 0; i < skipped.nr; i++)
 798                        fprintf(stderr, "  git branch -d %s\n",
 799                                skipped.items[i].string);
 800        }
 801        string_list_clear(&skipped, 0);
 802
 803        if (!result) {
 804                strbuf_addf(&buf, "remote.%s", remote->name);
 805                if (git_config_rename_section(buf.buf, NULL) < 1)
 806                        return error(_("Could not remove config section '%s'"), buf.buf);
 807        }
 808
 809        return result;
 810}
 811
 812static void clear_push_info(void *util, const char *string)
 813{
 814        struct push_info *info = util;
 815        free(info->dest);
 816        free(info);
 817}
 818
 819static void free_remote_ref_states(struct ref_states *states)
 820{
 821        string_list_clear(&states->new, 0);
 822        string_list_clear(&states->stale, 1);
 823        string_list_clear(&states->tracked, 0);
 824        string_list_clear(&states->heads, 0);
 825        string_list_clear_func(&states->push, clear_push_info);
 826}
 827
 828static int append_ref_to_tracked_list(const char *refname,
 829        const struct object_id *oid, int flags, void *cb_data)
 830{
 831        struct ref_states *states = cb_data;
 832        struct refspec refspec;
 833
 834        if (flags & REF_ISSYMREF)
 835                return 0;
 836
 837        memset(&refspec, 0, sizeof(refspec));
 838        refspec.dst = (char *)refname;
 839        if (!remote_find_tracking(states->remote, &refspec))
 840                string_list_append(&states->tracked, abbrev_branch(refspec.src));
 841
 842        return 0;
 843}
 844
 845static int get_remote_ref_states(const char *name,
 846                                 struct ref_states *states,
 847                                 int query)
 848{
 849        struct transport *transport;
 850        const struct ref *remote_refs;
 851
 852        states->remote = remote_get(name);
 853        if (!states->remote)
 854                return error(_("No such remote: %s"), name);
 855
 856        read_branches();
 857
 858        if (query) {
 859                transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 860                        states->remote->url[0] : NULL);
 861                remote_refs = transport_get_remote_refs(transport);
 862                transport_disconnect(transport);
 863
 864                states->queried = 1;
 865                if (query & GET_REF_STATES)
 866                        get_ref_states(remote_refs, states);
 867                if (query & GET_HEAD_NAMES)
 868                        get_head_names(remote_refs, states);
 869                if (query & GET_PUSH_REF_STATES)
 870                        get_push_ref_states(remote_refs, states);
 871        } else {
 872                for_each_ref(append_ref_to_tracked_list, states);
 873                string_list_sort(&states->tracked);
 874                get_push_ref_states_noquery(states);
 875        }
 876
 877        return 0;
 878}
 879
 880struct show_info {
 881        struct string_list *list;
 882        struct ref_states *states;
 883        int width, width2;
 884        int any_rebase;
 885};
 886
 887static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 888{
 889        struct show_info *info = cb_data;
 890        int n = strlen(item->string);
 891        if (n > info->width)
 892                info->width = n;
 893        string_list_insert(info->list, item->string);
 894        return 0;
 895}
 896
 897static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 898{
 899        struct show_info *info = cb_data;
 900        struct ref_states *states = info->states;
 901        const char *name = item->string;
 902
 903        if (states->queried) {
 904                const char *fmt = "%s";
 905                const char *arg = "";
 906                if (string_list_has_string(&states->new, name)) {
 907                        fmt = _(" new (next fetch will store in remotes/%s)");
 908                        arg = states->remote->name;
 909                } else if (string_list_has_string(&states->tracked, name))
 910                        arg = _(" tracked");
 911                else if (string_list_has_string(&states->stale, name))
 912                        arg = _(" stale (use 'git remote prune' to remove)");
 913                else
 914                        arg = _(" ???");
 915                printf("    %-*s", info->width, name);
 916                printf(fmt, arg);
 917                printf("\n");
 918        } else
 919                printf("    %s\n", name);
 920
 921        return 0;
 922}
 923
 924static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 925{
 926        struct show_info *show_info = cb_data;
 927        struct ref_states *states = show_info->states;
 928        struct branch_info *branch_info = branch_item->util;
 929        struct string_list_item *item;
 930        int n;
 931
 932        if (!branch_info->merge.nr || !branch_info->remote_name ||
 933            strcmp(states->remote->name, branch_info->remote_name))
 934                return 0;
 935        if ((n = strlen(branch_item->string)) > show_info->width)
 936                show_info->width = n;
 937        if (branch_info->rebase)
 938                show_info->any_rebase = 1;
 939
 940        item = string_list_insert(show_info->list, branch_item->string);
 941        item->util = branch_info;
 942
 943        return 0;
 944}
 945
 946static int show_local_info_item(struct string_list_item *item, void *cb_data)
 947{
 948        struct show_info *show_info = cb_data;
 949        struct branch_info *branch_info = item->util;
 950        struct string_list *merge = &branch_info->merge;
 951        int width = show_info->width + 4;
 952        int i;
 953
 954        if (branch_info->rebase && branch_info->merge.nr > 1) {
 955                error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"),
 956                        item->string);
 957                return 0;
 958        }
 959
 960        printf("    %-*s ", show_info->width, item->string);
 961        if (branch_info->rebase) {
 962                printf_ln(branch_info->rebase == INTERACTIVE_REBASE
 963                          ? _("rebases interactively onto remote %s")
 964                          : _("rebases onto remote %s"), merge->items[0].string);
 965                return 0;
 966        } else if (show_info->any_rebase) {
 967                printf_ln(_(" merges with remote %s"), merge->items[0].string);
 968                width++;
 969        } else {
 970                printf_ln(_("merges with remote %s"), merge->items[0].string);
 971        }
 972        for (i = 1; i < merge->nr; i++)
 973                printf(_("%-*s    and with remote %s\n"), width, "",
 974                       merge->items[i].string);
 975
 976        return 0;
 977}
 978
 979static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
 980{
 981        struct show_info *show_info = cb_data;
 982        struct push_info *push_info = push_item->util;
 983        struct string_list_item *item;
 984        int n;
 985        if ((n = strlen(push_item->string)) > show_info->width)
 986                show_info->width = n;
 987        if ((n = strlen(push_info->dest)) > show_info->width2)
 988                show_info->width2 = n;
 989        item = string_list_append(show_info->list, push_item->string);
 990        item->util = push_item->util;
 991        return 0;
 992}
 993
 994/*
 995 * Sorting comparison for a string list that has push_info
 996 * structs in its util field
 997 */
 998static int cmp_string_with_push(const void *va, const void *vb)
 999{
1000        const struct string_list_item *a = va;
1001        const struct string_list_item *b = vb;
1002        const struct push_info *a_push = a->util;
1003        const struct push_info *b_push = b->util;
1004        int cmp = strcmp(a->string, b->string);
1005        return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1006}
1007
1008static int show_push_info_item(struct string_list_item *item, void *cb_data)
1009{
1010        struct show_info *show_info = cb_data;
1011        struct push_info *push_info = item->util;
1012        const char *src = item->string, *status = NULL;
1013
1014        switch (push_info->status) {
1015        case PUSH_STATUS_CREATE:
1016                status = _("create");
1017                break;
1018        case PUSH_STATUS_DELETE:
1019                status = _("delete");
1020                src = _("(none)");
1021                break;
1022        case PUSH_STATUS_UPTODATE:
1023                status = _("up to date");
1024                break;
1025        case PUSH_STATUS_FASTFORWARD:
1026                status = _("fast-forwardable");
1027                break;
1028        case PUSH_STATUS_OUTOFDATE:
1029                status = _("local out of date");
1030                break;
1031        case PUSH_STATUS_NOTQUERIED:
1032                break;
1033        }
1034        if (status) {
1035                if (push_info->forced)
1036                        printf_ln(_("    %-*s forces to %-*s (%s)"), show_info->width, src,
1037                               show_info->width2, push_info->dest, status);
1038                else
1039                        printf_ln(_("    %-*s pushes to %-*s (%s)"), show_info->width, src,
1040                               show_info->width2, push_info->dest, status);
1041        } else {
1042                if (push_info->forced)
1043                        printf_ln(_("    %-*s forces to %s"), show_info->width, src,
1044                               push_info->dest);
1045                else
1046                        printf_ln(_("    %-*s pushes to %s"), show_info->width, src,
1047                               push_info->dest);
1048        }
1049        return 0;
1050}
1051
1052static int get_one_entry(struct remote *remote, void *priv)
1053{
1054        struct string_list *list = priv;
1055        struct strbuf url_buf = STRBUF_INIT;
1056        const char **url;
1057        int i, url_nr;
1058
1059        if (remote->url_nr > 0) {
1060                strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1061                string_list_append(list, remote->name)->util =
1062                                strbuf_detach(&url_buf, NULL);
1063        } else
1064                string_list_append(list, remote->name)->util = NULL;
1065        if (remote->pushurl_nr) {
1066                url = remote->pushurl;
1067                url_nr = remote->pushurl_nr;
1068        } else {
1069                url = remote->url;
1070                url_nr = remote->url_nr;
1071        }
1072        for (i = 0; i < url_nr; i++)
1073        {
1074                strbuf_addf(&url_buf, "%s (push)", url[i]);
1075                string_list_append(list, remote->name)->util =
1076                                strbuf_detach(&url_buf, NULL);
1077        }
1078
1079        return 0;
1080}
1081
1082static int show_all(void)
1083{
1084        struct string_list list = STRING_LIST_INIT_NODUP;
1085        int result;
1086
1087        list.strdup_strings = 1;
1088        result = for_each_remote(get_one_entry, &list);
1089
1090        if (!result) {
1091                int i;
1092
1093                string_list_sort(&list);
1094                for (i = 0; i < list.nr; i++) {
1095                        struct string_list_item *item = list.items + i;
1096                        if (verbose)
1097                                printf("%s\t%s\n", item->string,
1098                                        item->util ? (const char *)item->util : "");
1099                        else {
1100                                if (i && !strcmp((item - 1)->string, item->string))
1101                                        continue;
1102                                printf("%s\n", item->string);
1103                        }
1104                }
1105        }
1106        string_list_clear(&list, 1);
1107        return result;
1108}
1109
1110static int show(int argc, const char **argv)
1111{
1112        int no_query = 0, result = 0, query_flag = 0;
1113        struct option options[] = {
1114                OPT_BOOL('n', NULL, &no_query, N_("do not query remotes")),
1115                OPT_END()
1116        };
1117        struct ref_states states;
1118        struct string_list info_list = STRING_LIST_INIT_NODUP;
1119        struct show_info info;
1120
1121        argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1122                             0);
1123
1124        if (argc < 1)
1125                return show_all();
1126
1127        if (!no_query)
1128                query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1129
1130        memset(&states, 0, sizeof(states));
1131        memset(&info, 0, sizeof(info));
1132        info.states = &states;
1133        info.list = &info_list;
1134        for (; argc; argc--, argv++) {
1135                int i;
1136                const char **url;
1137                int url_nr;
1138
1139                get_remote_ref_states(*argv, &states, query_flag);
1140
1141                printf_ln(_("* remote %s"), *argv);
1142                printf_ln(_("  Fetch URL: %s"), states.remote->url_nr > 0 ?
1143                       states.remote->url[0] : _("(no URL)"));
1144                if (states.remote->pushurl_nr) {
1145                        url = states.remote->pushurl;
1146                        url_nr = states.remote->pushurl_nr;
1147                } else {
1148                        url = states.remote->url;
1149                        url_nr = states.remote->url_nr;
1150                }
1151                for (i = 0; i < url_nr; i++)
1152                        /* TRANSLATORS: the colon ':' should align with
1153                           the one in "  Fetch URL: %s" translation */
1154                        printf_ln(_("  Push  URL: %s"), url[i]);
1155                if (!i)
1156                        printf_ln(_("  Push  URL: %s"), _("(no URL)"));
1157                if (no_query)
1158                        printf_ln(_("  HEAD branch: %s"), _("(not queried)"));
1159                else if (!states.heads.nr)
1160                        printf_ln(_("  HEAD branch: %s"), _("(unknown)"));
1161                else if (states.heads.nr == 1)
1162                        printf_ln(_("  HEAD branch: %s"), states.heads.items[0].string);
1163                else {
1164                        printf(_("  HEAD branch (remote HEAD is ambiguous,"
1165                                 " may be one of the following):\n"));
1166                        for (i = 0; i < states.heads.nr; i++)
1167                                printf("    %s\n", states.heads.items[i].string);
1168                }
1169
1170                /* remote branch info */
1171                info.width = 0;
1172                for_each_string_list(&states.new, add_remote_to_show_info, &info);
1173                for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1174                for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1175                if (info.list->nr)
1176                        printf_ln(Q_("  Remote branch:%s",
1177                                     "  Remote branches:%s",
1178                                     info.list->nr),
1179                                  no_query ? _(" (status not queried)") : "");
1180                for_each_string_list(info.list, show_remote_info_item, &info);
1181                string_list_clear(info.list, 0);
1182
1183                /* git pull info */
1184                info.width = 0;
1185                info.any_rebase = 0;
1186                for_each_string_list(&branch_list, add_local_to_show_info, &info);
1187                if (info.list->nr)
1188                        printf_ln(Q_("  Local branch configured for 'git pull':",
1189                                     "  Local branches configured for 'git pull':",
1190                                     info.list->nr));
1191                for_each_string_list(info.list, show_local_info_item, &info);
1192                string_list_clear(info.list, 0);
1193
1194                /* git push info */
1195                if (states.remote->mirror)
1196                        printf_ln(_("  Local refs will be mirrored by 'git push'"));
1197
1198                info.width = info.width2 = 0;
1199                for_each_string_list(&states.push, add_push_to_show_info, &info);
1200                qsort(info.list->items, info.list->nr,
1201                        sizeof(*info.list->items), cmp_string_with_push);
1202                if (info.list->nr)
1203                        printf_ln(Q_("  Local ref configured for 'git push'%s:",
1204                                     "  Local refs configured for 'git push'%s:",
1205                                     info.list->nr),
1206                                  no_query ? _(" (status not queried)") : "");
1207                for_each_string_list(info.list, show_push_info_item, &info);
1208                string_list_clear(info.list, 0);
1209
1210                free_remote_ref_states(&states);
1211        }
1212
1213        return result;
1214}
1215
1216static int set_head(int argc, const char **argv)
1217{
1218        int i, opt_a = 0, opt_d = 0, result = 0;
1219        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1220        char *head_name = NULL;
1221
1222        struct option options[] = {
1223                OPT_BOOL('a', "auto", &opt_a,
1224                         N_("set refs/remotes/<name>/HEAD according to remote")),
1225                OPT_BOOL('d', "delete", &opt_d,
1226                         N_("delete refs/remotes/<name>/HEAD")),
1227                OPT_END()
1228        };
1229        argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1230                             0);
1231        if (argc)
1232                strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1233
1234        if (!opt_a && !opt_d && argc == 2) {
1235                head_name = xstrdup(argv[1]);
1236        } else if (opt_a && !opt_d && argc == 1) {
1237                struct ref_states states;
1238                memset(&states, 0, sizeof(states));
1239                get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1240                if (!states.heads.nr)
1241                        result |= error(_("Cannot determine remote HEAD"));
1242                else if (states.heads.nr > 1) {
1243                        result |= error(_("Multiple remote HEAD branches. "
1244                                          "Please choose one explicitly with:"));
1245                        for (i = 0; i < states.heads.nr; i++)
1246                                fprintf(stderr, "  git remote set-head %s %s\n",
1247                                        argv[0], states.heads.items[i].string);
1248                } else
1249                        head_name = xstrdup(states.heads.items[0].string);
1250                free_remote_ref_states(&states);
1251        } else if (opt_d && !opt_a && argc == 1) {
1252                if (delete_ref(buf.buf, NULL, REF_NODEREF))
1253                        result |= error(_("Could not delete %s"), buf.buf);
1254        } else
1255                usage_with_options(builtin_remote_sethead_usage, options);
1256
1257        if (head_name) {
1258                strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1259                /* make sure it's valid */
1260                if (!ref_exists(buf2.buf))
1261                        result |= error(_("Not a valid ref: %s"), buf2.buf);
1262                else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1263                        result |= error(_("Could not setup %s"), buf.buf);
1264                if (opt_a)
1265                        printf("%s/HEAD set to %s\n", argv[0], head_name);
1266                free(head_name);
1267        }
1268
1269        strbuf_release(&buf);
1270        strbuf_release(&buf2);
1271        return result;
1272}
1273
1274static int prune_remote(const char *remote, int dry_run)
1275{
1276        int result = 0;
1277        struct ref_states states;
1278        struct string_list refs_to_prune = STRING_LIST_INIT_NODUP;
1279        struct string_list_item *item;
1280        const char *dangling_msg = dry_run
1281                ? _(" %s will become dangling!")
1282                : _(" %s has become dangling!");
1283
1284        memset(&states, 0, sizeof(states));
1285        get_remote_ref_states(remote, &states, GET_REF_STATES);
1286
1287        if (!states.stale.nr) {
1288                free_remote_ref_states(&states);
1289                return 0;
1290        }
1291
1292        printf_ln(_("Pruning %s"), remote);
1293        printf_ln(_("URL: %s"),
1294                  states.remote->url_nr
1295                  ? states.remote->url[0]
1296                  : _("(no URL)"));
1297
1298        for_each_string_list_item(item, &states.stale)
1299                string_list_append(&refs_to_prune, item->util);
1300        string_list_sort(&refs_to_prune);
1301
1302        if (!dry_run)
1303                result |= delete_refs(&refs_to_prune, 0);
1304
1305        for_each_string_list_item(item, &states.stale) {
1306                const char *refname = item->util;
1307
1308                if (dry_run)
1309                        printf_ln(_(" * [would prune] %s"),
1310                               abbrev_ref(refname, "refs/remotes/"));
1311                else
1312                        printf_ln(_(" * [pruned] %s"),
1313                               abbrev_ref(refname, "refs/remotes/"));
1314        }
1315
1316        warn_dangling_symrefs(stdout, dangling_msg, &refs_to_prune);
1317
1318        string_list_clear(&refs_to_prune, 0);
1319        free_remote_ref_states(&states);
1320        return result;
1321}
1322
1323static int prune(int argc, const char **argv)
1324{
1325        int dry_run = 0, result = 0;
1326        struct option options[] = {
1327                OPT__DRY_RUN(&dry_run, N_("dry run")),
1328                OPT_END()
1329        };
1330
1331        argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1332                             0);
1333
1334        if (argc < 1)
1335                usage_with_options(builtin_remote_prune_usage, options);
1336
1337        for (; argc; argc--, argv++)
1338                result |= prune_remote(*argv, dry_run);
1339
1340        return result;
1341}
1342
1343static int get_remote_default(const char *key, const char *value, void *priv)
1344{
1345        if (strcmp(key, "remotes.default") == 0) {
1346                int *found = priv;
1347                *found = 1;
1348        }
1349        return 0;
1350}
1351
1352static int update(int argc, const char **argv)
1353{
1354        int i, prune = -1;
1355        struct option options[] = {
1356                OPT_BOOL('p', "prune", &prune,
1357                         N_("prune remotes after fetching")),
1358                OPT_END()
1359        };
1360        struct argv_array fetch_argv = ARGV_ARRAY_INIT;
1361        int default_defined = 0;
1362        int retval;
1363
1364        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1365                             PARSE_OPT_KEEP_ARGV0);
1366
1367        argv_array_push(&fetch_argv, "fetch");
1368
1369        if (prune != -1)
1370                argv_array_push(&fetch_argv, prune ? "--prune" : "--no-prune");
1371        if (verbose)
1372                argv_array_push(&fetch_argv, "-v");
1373        argv_array_push(&fetch_argv, "--multiple");
1374        if (argc < 2)
1375                argv_array_push(&fetch_argv, "default");
1376        for (i = 1; i < argc; i++)
1377                argv_array_push(&fetch_argv, argv[i]);
1378
1379        if (strcmp(fetch_argv.argv[fetch_argv.argc-1], "default") == 0) {
1380                git_config(get_remote_default, &default_defined);
1381                if (!default_defined) {
1382                        argv_array_pop(&fetch_argv);
1383                        argv_array_push(&fetch_argv, "--all");
1384                }
1385        }
1386
1387        retval = run_command_v_opt(fetch_argv.argv, RUN_GIT_CMD);
1388        argv_array_clear(&fetch_argv);
1389        return retval;
1390}
1391
1392static int remove_all_fetch_refspecs(const char *remote, const char *key)
1393{
1394        return git_config_set_multivar_gently(key, NULL, NULL, 1);
1395}
1396
1397static void add_branches(struct remote *remote, const char **branches,
1398                         const char *key)
1399{
1400        const char *remotename = remote->name;
1401        int mirror = remote->mirror;
1402        struct strbuf refspec = STRBUF_INIT;
1403
1404        for (; *branches; branches++)
1405                add_branch(key, *branches, remotename, mirror, &refspec);
1406
1407        strbuf_release(&refspec);
1408}
1409
1410static int set_remote_branches(const char *remotename, const char **branches,
1411                                int add_mode)
1412{
1413        struct strbuf key = STRBUF_INIT;
1414        struct remote *remote;
1415
1416        strbuf_addf(&key, "remote.%s.fetch", remotename);
1417
1418        remote = remote_get(remotename);
1419        if (!remote_is_configured(remote))
1420                die(_("No such remote '%s'"), remotename);
1421
1422        if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
1423                strbuf_release(&key);
1424                return 1;
1425        }
1426        add_branches(remote, branches, key.buf);
1427
1428        strbuf_release(&key);
1429        return 0;
1430}
1431
1432static int set_branches(int argc, const char **argv)
1433{
1434        int add_mode = 0;
1435        struct option options[] = {
1436                OPT_BOOL('\0', "add", &add_mode, N_("add branch")),
1437                OPT_END()
1438        };
1439
1440        argc = parse_options(argc, argv, NULL, options,
1441                             builtin_remote_setbranches_usage, 0);
1442        if (argc == 0) {
1443                error(_("no remote specified"));
1444                usage_with_options(builtin_remote_setbranches_usage, options);
1445        }
1446        argv[argc] = NULL;
1447
1448        return set_remote_branches(argv[0], argv + 1, add_mode);
1449}
1450
1451static int get_url(int argc, const char **argv)
1452{
1453        int i, push_mode = 0, all_mode = 0;
1454        const char *remotename = NULL;
1455        struct remote *remote;
1456        const char **url;
1457        int url_nr;
1458        struct option options[] = {
1459                OPT_BOOL('\0', "push", &push_mode,
1460                         N_("query push URLs rather than fetch URLs")),
1461                OPT_BOOL('\0', "all", &all_mode,
1462                         N_("return all URLs")),
1463                OPT_END()
1464        };
1465        argc = parse_options(argc, argv, NULL, options, builtin_remote_geturl_usage, 0);
1466
1467        if (argc != 1)
1468                usage_with_options(builtin_remote_geturl_usage, options);
1469
1470        remotename = argv[0];
1471
1472        remote = remote_get(remotename);
1473        if (!remote_is_configured(remote))
1474                die(_("No such remote '%s'"), remotename);
1475
1476        url_nr = 0;
1477        if (push_mode) {
1478                url = remote->pushurl;
1479                url_nr = remote->pushurl_nr;
1480        }
1481        /* else fetch mode */
1482
1483        /* Use the fetch URL when no push URLs were found or requested. */
1484        if (!url_nr) {
1485                url = remote->url;
1486                url_nr = remote->url_nr;
1487        }
1488
1489        if (!url_nr)
1490                die(_("no URLs configured for remote '%s'"), remotename);
1491
1492        if (all_mode) {
1493                for (i = 0; i < url_nr; i++)
1494                        printf_ln("%s", url[i]);
1495        } else {
1496                printf_ln("%s", *url);
1497        }
1498
1499        return 0;
1500}
1501
1502static int set_url(int argc, const char **argv)
1503{
1504        int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1505        int matches = 0, negative_matches = 0;
1506        const char *remotename = NULL;
1507        const char *newurl = NULL;
1508        const char *oldurl = NULL;
1509        struct remote *remote;
1510        regex_t old_regex;
1511        const char **urlset;
1512        int urlset_nr;
1513        struct strbuf name_buf = STRBUF_INIT;
1514        struct option options[] = {
1515                OPT_BOOL('\0', "push", &push_mode,
1516                         N_("manipulate push URLs")),
1517                OPT_BOOL('\0', "add", &add_mode,
1518                         N_("add URL")),
1519                OPT_BOOL('\0', "delete", &delete_mode,
1520                            N_("delete URLs")),
1521                OPT_END()
1522        };
1523        argc = parse_options(argc, argv, NULL, options, builtin_remote_seturl_usage,
1524                             PARSE_OPT_KEEP_ARGV0);
1525
1526        if (add_mode && delete_mode)
1527                die(_("--add --delete doesn't make sense"));
1528
1529        if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1530                usage_with_options(builtin_remote_seturl_usage, options);
1531
1532        remotename = argv[1];
1533        newurl = argv[2];
1534        if (argc > 3)
1535                oldurl = argv[3];
1536
1537        if (delete_mode)
1538                oldurl = newurl;
1539
1540        remote = remote_get(remotename);
1541        if (!remote_is_configured(remote))
1542                die(_("No such remote '%s'"), remotename);
1543
1544        if (push_mode) {
1545                strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1546                urlset = remote->pushurl;
1547                urlset_nr = remote->pushurl_nr;
1548        } else {
1549                strbuf_addf(&name_buf, "remote.%s.url", remotename);
1550                urlset = remote->url;
1551                urlset_nr = remote->url_nr;
1552        }
1553
1554        /* Special cases that add new entry. */
1555        if ((!oldurl && !delete_mode) || add_mode) {
1556                if (add_mode)
1557                        git_config_set_multivar(name_buf.buf, newurl,
1558                                                       "^$", 0);
1559                else
1560                        git_config_set(name_buf.buf, newurl);
1561                strbuf_release(&name_buf);
1562
1563                return 0;
1564        }
1565
1566        /* Old URL specified. Demand that one matches. */
1567        if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1568                die(_("Invalid old URL pattern: %s"), oldurl);
1569
1570        for (i = 0; i < urlset_nr; i++)
1571                if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1572                        matches++;
1573                else
1574                        negative_matches++;
1575        if (!delete_mode && !matches)
1576                die(_("No such URL found: %s"), oldurl);
1577        if (delete_mode && !negative_matches && !push_mode)
1578                die(_("Will not delete all non-push URLs"));
1579
1580        regfree(&old_regex);
1581
1582        if (!delete_mode)
1583                git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1584        else
1585                git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1586        return 0;
1587}
1588
1589int cmd_remote(int argc, const char **argv, const char *prefix)
1590{
1591        struct option options[] = {
1592                OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")),
1593                OPT_END()
1594        };
1595        int result;
1596
1597        argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1598                PARSE_OPT_STOP_AT_NON_OPTION);
1599
1600        if (argc < 1)
1601                result = show_all();
1602        else if (!strcmp(argv[0], "add"))
1603                result = add(argc, argv);
1604        else if (!strcmp(argv[0], "rename"))
1605                result = mv(argc, argv);
1606        else if (!strcmp(argv[0], "rm") || !strcmp(argv[0], "remove"))
1607                result = rm(argc, argv);
1608        else if (!strcmp(argv[0], "set-head"))
1609                result = set_head(argc, argv);
1610        else if (!strcmp(argv[0], "set-branches"))
1611                result = set_branches(argc, argv);
1612        else if (!strcmp(argv[0], "get-url"))
1613                result = get_url(argc, argv);
1614        else if (!strcmp(argv[0], "set-url"))
1615                result = set_url(argc, argv);
1616        else if (!strcmp(argv[0], "show"))
1617                result = show(argc, argv);
1618        else if (!strcmp(argv[0], "prune"))
1619                result = prune(argc, argv);
1620        else if (!strcmp(argv[0], "update"))
1621                result = update(argc, argv);
1622        else {
1623                error(_("Unknown subcommand: %s"), argv[0]);
1624                usage_with_options(builtin_remote_usage, options);
1625        }
1626
1627        return result ? 1 : 0;
1628}