builtin / remote.con commit Merge branch 'mg/verify-commit' (39177c7)
   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 set-url [--push] <name> <newurl> [<oldurl>]"),
  22        N_("git remote set-url --add <name> <newurl>"),
  23        N_("git remote set-url --delete <name> <url>"),
  24        NULL
  25};
  26
  27static const char * const builtin_remote_add_usage[] = {
  28        N_("git remote add [<options>] <name> <url>"),
  29        NULL
  30};
  31
  32static const char * const builtin_remote_rename_usage[] = {
  33        N_("git remote rename <old> <new>"),
  34        NULL
  35};
  36
  37static const char * const builtin_remote_rm_usage[] = {
  38        N_("git remote remove <name>"),
  39        NULL
  40};
  41
  42static const char * const builtin_remote_sethead_usage[] = {
  43        N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
  44        NULL
  45};
  46
  47static const char * const builtin_remote_setbranches_usage[] = {
  48        N_("git remote set-branches <name> <branch>..."),
  49        N_("git remote set-branches --add <name> <branch>..."),
  50        NULL
  51};
  52
  53static const char * const builtin_remote_show_usage[] = {
  54        N_("git remote show [<options>] <name>"),
  55        NULL
  56};
  57
  58static const char * const builtin_remote_prune_usage[] = {
  59        N_("git remote prune [<options>] <name>"),
  60        NULL
  61};
  62
  63static const char * const builtin_remote_update_usage[] = {
  64        N_("git remote update [<options>] [<group> | <remote>]..."),
  65        NULL
  66};
  67
  68static const char * const builtin_remote_seturl_usage[] = {
  69        N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
  70        N_("git remote set-url --add <name> <newurl>"),
  71        N_("git remote set-url --delete <name> <url>"),
  72        NULL
  73};
  74
  75#define GET_REF_STATES (1<<0)
  76#define GET_HEAD_NAMES (1<<1)
  77#define GET_PUSH_REF_STATES (1<<2)
  78
  79static int verbose;
  80
  81static int fetch_remote(const char *name)
  82{
  83        const char *argv[] = { "fetch", name, NULL, NULL };
  84        if (verbose) {
  85                argv[1] = "-v";
  86                argv[2] = name;
  87        }
  88        printf_ln(_("Updating %s"), name);
  89        if (run_command_v_opt(argv, RUN_GIT_CMD))
  90                return error(_("Could not fetch %s"), name);
  91        return 0;
  92}
  93
  94enum {
  95        TAGS_UNSET = 0,
  96        TAGS_DEFAULT = 1,
  97        TAGS_SET = 2
  98};
  99
 100#define MIRROR_NONE 0
 101#define MIRROR_FETCH 1
 102#define MIRROR_PUSH 2
 103#define MIRROR_BOTH (MIRROR_FETCH|MIRROR_PUSH)
 104
 105static int add_branch(const char *key, const char *branchname,
 106                const char *remotename, int mirror, struct strbuf *tmp)
 107{
 108        strbuf_reset(tmp);
 109        strbuf_addch(tmp, '+');
 110        if (mirror)
 111                strbuf_addf(tmp, "refs/%s:refs/%s",
 112                                branchname, branchname);
 113        else
 114                strbuf_addf(tmp, "refs/heads/%s:refs/remotes/%s/%s",
 115                                branchname, remotename, branchname);
 116        return git_config_set_multivar(key, tmp->buf, "^$", 0);
 117}
 118
 119static const char mirror_advice[] =
 120N_("--mirror is dangerous and deprecated; please\n"
 121   "\t use --mirror=fetch or --mirror=push instead");
 122
 123static int parse_mirror_opt(const struct option *opt, const char *arg, int not)
 124{
 125        unsigned *mirror = opt->value;
 126        if (not)
 127                *mirror = MIRROR_NONE;
 128        else if (!arg) {
 129                warning("%s", _(mirror_advice));
 130                *mirror = MIRROR_BOTH;
 131        }
 132        else if (!strcmp(arg, "fetch"))
 133                *mirror = MIRROR_FETCH;
 134        else if (!strcmp(arg, "push"))
 135                *mirror = MIRROR_PUSH;
 136        else
 137                return error(_("unknown mirror argument: %s"), arg);
 138        return 0;
 139}
 140
 141static int add(int argc, const char **argv)
 142{
 143        int fetch = 0, fetch_tags = TAGS_DEFAULT;
 144        unsigned mirror = MIRROR_NONE;
 145        struct string_list track = STRING_LIST_INIT_NODUP;
 146        const char *master = NULL;
 147        struct remote *remote;
 148        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
 149        const char *name, *url;
 150        int i;
 151
 152        struct option options[] = {
 153                OPT_BOOL('f', "fetch", &fetch, N_("fetch the remote branches")),
 154                OPT_SET_INT(0, "tags", &fetch_tags,
 155                            N_("import all tags and associated objects when fetching"),
 156                            TAGS_SET),
 157                OPT_SET_INT(0, NULL, &fetch_tags,
 158                            N_("or do not fetch any tag at all (--no-tags)"), TAGS_UNSET),
 159                OPT_STRING_LIST('t', "track", &track, N_("branch"),
 160                                N_("branch(es) to track")),
 161                OPT_STRING('m', "master", &master, N_("branch"), N_("master branch")),
 162                { OPTION_CALLBACK, 0, "mirror", &mirror, N_("push|fetch"),
 163                        N_("set up remote as a mirror to push to or fetch from"),
 164                        PARSE_OPT_OPTARG, parse_mirror_opt },
 165                OPT_END()
 166        };
 167
 168        argc = parse_options(argc, argv, NULL, options, builtin_remote_add_usage,
 169                             0);
 170
 171        if (argc != 2)
 172                usage_with_options(builtin_remote_add_usage, options);
 173
 174        if (mirror && master)
 175                die(_("specifying a master branch makes no sense with --mirror"));
 176        if (mirror && !(mirror & MIRROR_FETCH) && track.nr)
 177                die(_("specifying branches to track makes sense only with fetch mirrors"));
 178
 179        name = argv[0];
 180        url = argv[1];
 181
 182        remote = remote_get(name);
 183        if (remote && (remote->url_nr > 1 || strcmp(name, remote->url[0]) ||
 184                        remote->fetch_refspec_nr))
 185                die(_("remote %s already exists."), name);
 186
 187        strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
 188        if (!valid_fetch_refspec(buf2.buf))
 189                die(_("'%s' is not a valid remote name"), name);
 190
 191        strbuf_addf(&buf, "remote.%s.url", name);
 192        if (git_config_set(buf.buf, url))
 193                return 1;
 194
 195        if (!mirror || mirror & MIRROR_FETCH) {
 196                strbuf_reset(&buf);
 197                strbuf_addf(&buf, "remote.%s.fetch", name);
 198                if (track.nr == 0)
 199                        string_list_append(&track, "*");
 200                for (i = 0; i < track.nr; i++) {
 201                        if (add_branch(buf.buf, track.items[i].string,
 202                                       name, mirror, &buf2))
 203                                return 1;
 204                }
 205        }
 206
 207        if (mirror & MIRROR_PUSH) {
 208                strbuf_reset(&buf);
 209                strbuf_addf(&buf, "remote.%s.mirror", name);
 210                if (git_config_set(buf.buf, "true"))
 211                        return 1;
 212        }
 213
 214        if (fetch_tags != TAGS_DEFAULT) {
 215                strbuf_reset(&buf);
 216                strbuf_addf(&buf, "remote.%s.tagopt", name);
 217                if (git_config_set(buf.buf,
 218                        fetch_tags == TAGS_SET ? "--tags" : "--no-tags"))
 219                        return 1;
 220        }
 221
 222        if (fetch && fetch_remote(name))
 223                return 1;
 224
 225        if (master) {
 226                strbuf_reset(&buf);
 227                strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
 228
 229                strbuf_reset(&buf2);
 230                strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
 231
 232                if (create_symref(buf.buf, buf2.buf, "remote add"))
 233                        return error(_("Could not setup master '%s'"), master);
 234        }
 235
 236        strbuf_release(&buf);
 237        strbuf_release(&buf2);
 238        string_list_clear(&track, 0);
 239
 240        return 0;
 241}
 242
 243struct branch_info {
 244        char *remote_name;
 245        struct string_list merge;
 246        int rebase;
 247};
 248
 249static struct string_list branch_list;
 250
 251static const char *abbrev_ref(const char *name, const char *prefix)
 252{
 253        skip_prefix(name, prefix, &name);
 254        return name;
 255}
 256#define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 257
 258static int config_read_branches(const char *key, const char *value, void *cb)
 259{
 260        if (starts_with(key, "branch.")) {
 261                const char *orig_key = key;
 262                char *name;
 263                struct string_list_item *item;
 264                struct branch_info *info;
 265                enum { REMOTE, MERGE, REBASE } type;
 266
 267                key += 7;
 268                if (ends_with(key, ".remote")) {
 269                        name = xstrndup(key, strlen(key) - 7);
 270                        type = REMOTE;
 271                } else if (ends_with(key, ".merge")) {
 272                        name = xstrndup(key, strlen(key) - 6);
 273                        type = MERGE;
 274                } else if (ends_with(key, ".rebase")) {
 275                        name = xstrndup(key, strlen(key) - 7);
 276                        type = REBASE;
 277                } else
 278                        return 0;
 279
 280                item = string_list_insert(&branch_list, name);
 281
 282                if (!item->util)
 283                        item->util = xcalloc(1, sizeof(struct branch_info));
 284                info = item->util;
 285                if (type == REMOTE) {
 286                        if (info->remote_name)
 287                                warning(_("more than one %s"), orig_key);
 288                        info->remote_name = xstrdup(value);
 289                } else if (type == MERGE) {
 290                        char *space = strchr(value, ' ');
 291                        value = abbrev_branch(value);
 292                        while (space) {
 293                                char *merge;
 294                                merge = xstrndup(value, space - value);
 295                                string_list_append(&info->merge, merge);
 296                                value = abbrev_branch(space + 1);
 297                                space = strchr(value, ' ');
 298                        }
 299                        string_list_append(&info->merge, xstrdup(value));
 300                } else {
 301                        int v = git_config_maybe_bool(orig_key, value);
 302                        if (v >= 0)
 303                                info->rebase = v;
 304                        else if (!strcmp(value, "preserve"))
 305                                info->rebase = 1;
 306                }
 307        }
 308        return 0;
 309}
 310
 311static void read_branches(void)
 312{
 313        if (branch_list.nr)
 314                return;
 315        git_config(config_read_branches, NULL);
 316}
 317
 318struct ref_states {
 319        struct remote *remote;
 320        struct string_list new, stale, tracked, heads, push;
 321        int queried;
 322};
 323
 324static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 325{
 326        struct ref *fetch_map = NULL, **tail = &fetch_map;
 327        struct ref *ref, *stale_refs;
 328        int i;
 329
 330        for (i = 0; i < states->remote->fetch_refspec_nr; i++)
 331                if (get_fetch_map(remote_refs, states->remote->fetch + i, &tail, 1))
 332                        die(_("Could not get fetch map for refspec %s"),
 333                                states->remote->fetch_refspec[i]);
 334
 335        states->new.strdup_strings = 1;
 336        states->tracked.strdup_strings = 1;
 337        states->stale.strdup_strings = 1;
 338        for (ref = fetch_map; ref; ref = ref->next) {
 339                if (!ref->peer_ref || !ref_exists(ref->peer_ref->name))
 340                        string_list_append(&states->new, abbrev_branch(ref->name));
 341                else
 342                        string_list_append(&states->tracked, abbrev_branch(ref->name));
 343        }
 344        stale_refs = get_stale_heads(states->remote->fetch,
 345                                     states->remote->fetch_refspec_nr, fetch_map);
 346        for (ref = stale_refs; ref; ref = ref->next) {
 347                struct string_list_item *item =
 348                        string_list_append(&states->stale, abbrev_branch(ref->name));
 349                item->util = xstrdup(ref->name);
 350        }
 351        free_refs(stale_refs);
 352        free_refs(fetch_map);
 353
 354        sort_string_list(&states->new);
 355        sort_string_list(&states->tracked);
 356        sort_string_list(&states->stale);
 357
 358        return 0;
 359}
 360
 361struct push_info {
 362        char *dest;
 363        int forced;
 364        enum {
 365                PUSH_STATUS_CREATE = 0,
 366                PUSH_STATUS_DELETE,
 367                PUSH_STATUS_UPTODATE,
 368                PUSH_STATUS_FASTFORWARD,
 369                PUSH_STATUS_OUTOFDATE,
 370                PUSH_STATUS_NOTQUERIED
 371        } status;
 372};
 373
 374static int get_push_ref_states(const struct ref *remote_refs,
 375        struct ref_states *states)
 376{
 377        struct remote *remote = states->remote;
 378        struct ref *ref, *local_refs, *push_map;
 379        if (remote->mirror)
 380                return 0;
 381
 382        local_refs = get_local_heads();
 383        push_map = copy_ref_list(remote_refs);
 384
 385        match_push_refs(local_refs, &push_map, remote->push_refspec_nr,
 386                        remote->push_refspec, MATCH_REFS_NONE);
 387
 388        states->push.strdup_strings = 1;
 389        for (ref = push_map; ref; ref = ref->next) {
 390                struct string_list_item *item;
 391                struct push_info *info;
 392
 393                if (!ref->peer_ref)
 394                        continue;
 395                hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
 396
 397                item = string_list_append(&states->push,
 398                                          abbrev_branch(ref->peer_ref->name));
 399                item->util = xcalloc(1, sizeof(struct push_info));
 400                info = item->util;
 401                info->forced = ref->force;
 402                info->dest = xstrdup(abbrev_branch(ref->name));
 403
 404                if (is_null_sha1(ref->new_sha1)) {
 405                        info->status = PUSH_STATUS_DELETE;
 406                } else if (!hashcmp(ref->old_sha1, ref->new_sha1))
 407                        info->status = PUSH_STATUS_UPTODATE;
 408                else if (is_null_sha1(ref->old_sha1))
 409                        info->status = PUSH_STATUS_CREATE;
 410                else if (has_sha1_file(ref->old_sha1) &&
 411                         ref_newer(ref->new_sha1, ref->old_sha1))
 412                        info->status = PUSH_STATUS_FASTFORWARD;
 413                else
 414                        info->status = PUSH_STATUS_OUTOFDATE;
 415        }
 416        free_refs(local_refs);
 417        free_refs(push_map);
 418        return 0;
 419}
 420
 421static int get_push_ref_states_noquery(struct ref_states *states)
 422{
 423        int i;
 424        struct remote *remote = states->remote;
 425        struct string_list_item *item;
 426        struct push_info *info;
 427
 428        if (remote->mirror)
 429                return 0;
 430
 431        states->push.strdup_strings = 1;
 432        if (!remote->push_refspec_nr) {
 433                item = string_list_append(&states->push, _("(matching)"));
 434                info = item->util = xcalloc(1, sizeof(struct push_info));
 435                info->status = PUSH_STATUS_NOTQUERIED;
 436                info->dest = xstrdup(item->string);
 437        }
 438        for (i = 0; i < remote->push_refspec_nr; i++) {
 439                struct refspec *spec = remote->push + i;
 440                if (spec->matching)
 441                        item = string_list_append(&states->push, _("(matching)"));
 442                else if (strlen(spec->src))
 443                        item = string_list_append(&states->push, spec->src);
 444                else
 445                        item = string_list_append(&states->push, _("(delete)"));
 446
 447                info = item->util = xcalloc(1, sizeof(struct push_info));
 448                info->forced = spec->force;
 449                info->status = PUSH_STATUS_NOTQUERIED;
 450                info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 451        }
 452        return 0;
 453}
 454
 455static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 456{
 457        struct ref *ref, *matches;
 458        struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 459        struct refspec refspec;
 460
 461        refspec.force = 0;
 462        refspec.pattern = 1;
 463        refspec.src = refspec.dst = "refs/heads/*";
 464        states->heads.strdup_strings = 1;
 465        get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 466        matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 467                                    fetch_map, 1);
 468        for (ref = matches; ref; ref = ref->next)
 469                string_list_append(&states->heads, abbrev_branch(ref->name));
 470
 471        free_refs(fetch_map);
 472        free_refs(matches);
 473
 474        return 0;
 475}
 476
 477struct known_remote {
 478        struct known_remote *next;
 479        struct remote *remote;
 480};
 481
 482struct known_remotes {
 483        struct remote *to_delete;
 484        struct known_remote *list;
 485};
 486
 487static int add_known_remote(struct remote *remote, void *cb_data)
 488{
 489        struct known_remotes *all = cb_data;
 490        struct known_remote *r;
 491
 492        if (!strcmp(all->to_delete->name, remote->name))
 493                return 0;
 494
 495        r = xmalloc(sizeof(*r));
 496        r->remote = remote;
 497        r->next = all->list;
 498        all->list = r;
 499        return 0;
 500}
 501
 502struct branches_for_remote {
 503        struct remote *remote;
 504        struct string_list *branches, *skipped;
 505        struct known_remotes *keep;
 506};
 507
 508static int add_branch_for_removal(const char *refname,
 509        const unsigned char *sha1, int flags, void *cb_data)
 510{
 511        struct branches_for_remote *branches = cb_data;
 512        struct refspec refspec;
 513        struct string_list_item *item;
 514        struct known_remote *kr;
 515
 516        memset(&refspec, 0, sizeof(refspec));
 517        refspec.dst = (char *)refname;
 518        if (remote_find_tracking(branches->remote, &refspec))
 519                return 0;
 520
 521        /* don't delete a branch if another remote also uses it */
 522        for (kr = branches->keep->list; kr; kr = kr->next) {
 523                memset(&refspec, 0, sizeof(refspec));
 524                refspec.dst = (char *)refname;
 525                if (!remote_find_tracking(kr->remote, &refspec))
 526                        return 0;
 527        }
 528
 529        /* don't delete non-remote-tracking refs */
 530        if (!starts_with(refname, "refs/remotes/")) {
 531                /* advise user how to delete local branches */
 532                if (starts_with(refname, "refs/heads/"))
 533                        string_list_append(branches->skipped,
 534                                           abbrev_branch(refname));
 535                /* silently skip over other non-remote refs */
 536                return 0;
 537        }
 538
 539        /* make sure that symrefs are deleted */
 540        if (flags & REF_ISSYMREF)
 541                return unlink(git_path("%s", refname));
 542
 543        item = string_list_append(branches->branches, refname);
 544        item->util = xmalloc(20);
 545        hashcpy(item->util, sha1);
 546
 547        return 0;
 548}
 549
 550struct rename_info {
 551        const char *old;
 552        const char *new;
 553        struct string_list *remote_branches;
 554};
 555
 556static int read_remote_branches(const char *refname,
 557        const unsigned char *sha1, int flags, void *cb_data)
 558{
 559        struct rename_info *rename = cb_data;
 560        struct strbuf buf = STRBUF_INIT;
 561        struct string_list_item *item;
 562        int flag;
 563        unsigned char orig_sha1[20];
 564        const char *symref;
 565
 566        strbuf_addf(&buf, "refs/remotes/%s/", rename->old);
 567        if (starts_with(refname, buf.buf)) {
 568                item = string_list_append(rename->remote_branches, xstrdup(refname));
 569                symref = resolve_ref_unsafe(refname, orig_sha1, 1, &flag);
 570                if (flag & REF_ISSYMREF)
 571                        item->util = xstrdup(symref);
 572                else
 573                        item->util = NULL;
 574        }
 575
 576        return 0;
 577}
 578
 579static int migrate_file(struct remote *remote)
 580{
 581        struct strbuf buf = STRBUF_INIT;
 582        int i;
 583        char *path = NULL;
 584
 585        strbuf_addf(&buf, "remote.%s.url", remote->name);
 586        for (i = 0; i < remote->url_nr; i++)
 587                if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0))
 588                        return error(_("Could not append '%s' to '%s'"),
 589                                        remote->url[i], buf.buf);
 590        strbuf_reset(&buf);
 591        strbuf_addf(&buf, "remote.%s.push", remote->name);
 592        for (i = 0; i < remote->push_refspec_nr; i++)
 593                if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0))
 594                        return error(_("Could not append '%s' to '%s'"),
 595                                        remote->push_refspec[i], buf.buf);
 596        strbuf_reset(&buf);
 597        strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 598        for (i = 0; i < remote->fetch_refspec_nr; i++)
 599                if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0))
 600                        return error(_("Could not append '%s' to '%s'"),
 601                                        remote->fetch_refspec[i], buf.buf);
 602        if (remote->origin == REMOTE_REMOTES)
 603                path = git_path("remotes/%s", remote->name);
 604        else if (remote->origin == REMOTE_BRANCHES)
 605                path = git_path("branches/%s", remote->name);
 606        if (path)
 607                unlink_or_warn(path);
 608        return 0;
 609}
 610
 611static int mv(int argc, const char **argv)
 612{
 613        struct option options[] = {
 614                OPT_END()
 615        };
 616        struct remote *oldremote, *newremote;
 617        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT,
 618                old_remote_context = STRBUF_INIT;
 619        struct string_list remote_branches = STRING_LIST_INIT_NODUP;
 620        struct rename_info rename;
 621        int i, refspec_updated = 0;
 622
 623        if (argc != 3)
 624                usage_with_options(builtin_remote_rename_usage, options);
 625
 626        rename.old = argv[1];
 627        rename.new = argv[2];
 628        rename.remote_branches = &remote_branches;
 629
 630        oldremote = remote_get(rename.old);
 631        if (!oldremote)
 632                die(_("No such remote: %s"), rename.old);
 633
 634        if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
 635                return migrate_file(oldremote);
 636
 637        newremote = remote_get(rename.new);
 638        if (newremote && (newremote->url_nr > 1 || newremote->fetch_refspec_nr))
 639                die(_("remote %s already exists."), rename.new);
 640
 641        strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
 642        if (!valid_fetch_refspec(buf.buf))
 643                die(_("'%s' is not a valid remote name"), rename.new);
 644
 645        strbuf_reset(&buf);
 646        strbuf_addf(&buf, "remote.%s", rename.old);
 647        strbuf_addf(&buf2, "remote.%s", rename.new);
 648        if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 649                return error(_("Could not rename config section '%s' to '%s'"),
 650                                buf.buf, buf2.buf);
 651
 652        strbuf_reset(&buf);
 653        strbuf_addf(&buf, "remote.%s.fetch", rename.new);
 654        if (git_config_set_multivar(buf.buf, NULL, NULL, 1))
 655                return error(_("Could not remove config section '%s'"), buf.buf);
 656        strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old);
 657        for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 658                char *ptr;
 659
 660                strbuf_reset(&buf2);
 661                strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 662                ptr = strstr(buf2.buf, old_remote_context.buf);
 663                if (ptr) {
 664                        refspec_updated = 1;
 665                        strbuf_splice(&buf2,
 666                                      ptr-buf2.buf + strlen(":refs/remotes/"),
 667                                      strlen(rename.old), rename.new,
 668                                      strlen(rename.new));
 669                } else
 670                        warning(_("Not updating non-default fetch refspec\n"
 671                                  "\t%s\n"
 672                                  "\tPlease update the configuration manually if necessary."),
 673                                buf2.buf);
 674
 675                if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 676                        return error(_("Could not append '%s'"), buf.buf);
 677        }
 678
 679        read_branches();
 680        for (i = 0; i < branch_list.nr; i++) {
 681                struct string_list_item *item = branch_list.items + i;
 682                struct branch_info *info = item->util;
 683                if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 684                        strbuf_reset(&buf);
 685                        strbuf_addf(&buf, "branch.%s.remote", item->string);
 686                        if (git_config_set(buf.buf, rename.new)) {
 687                                return error(_("Could not set '%s'"), buf.buf);
 688                        }
 689                }
 690        }
 691
 692        if (!refspec_updated)
 693                return 0;
 694
 695        /*
 696         * First remove symrefs, then rename the rest, finally create
 697         * the new symrefs.
 698         */
 699        for_each_ref(read_remote_branches, &rename);
 700        for (i = 0; i < remote_branches.nr; i++) {
 701                struct string_list_item *item = remote_branches.items + i;
 702                int flag = 0;
 703                unsigned char sha1[20];
 704
 705                read_ref_full(item->string, sha1, 1, &flag);
 706                if (!(flag & REF_ISSYMREF))
 707                        continue;
 708                if (delete_ref(item->string, NULL, REF_NODEREF))
 709                        die(_("deleting '%s' failed"), item->string);
 710        }
 711        for (i = 0; i < remote_branches.nr; i++) {
 712                struct string_list_item *item = remote_branches.items + i;
 713
 714                if (item->util)
 715                        continue;
 716                strbuf_reset(&buf);
 717                strbuf_addstr(&buf, item->string);
 718                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 719                                rename.new, strlen(rename.new));
 720                strbuf_reset(&buf2);
 721                strbuf_addf(&buf2, "remote: renamed %s to %s",
 722                                item->string, buf.buf);
 723                if (rename_ref(item->string, buf.buf, buf2.buf))
 724                        die(_("renaming '%s' failed"), item->string);
 725        }
 726        for (i = 0; i < remote_branches.nr; i++) {
 727                struct string_list_item *item = remote_branches.items + i;
 728
 729                if (!item->util)
 730                        continue;
 731                strbuf_reset(&buf);
 732                strbuf_addstr(&buf, item->string);
 733                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 734                                rename.new, strlen(rename.new));
 735                strbuf_reset(&buf2);
 736                strbuf_addstr(&buf2, item->util);
 737                strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
 738                                rename.new, strlen(rename.new));
 739                strbuf_reset(&buf3);
 740                strbuf_addf(&buf3, "remote: renamed %s to %s",
 741                                item->string, buf.buf);
 742                if (create_symref(buf.buf, buf2.buf, buf3.buf))
 743                        die(_("creating '%s' failed"), buf.buf);
 744        }
 745        return 0;
 746}
 747
 748static int remove_branches(struct string_list *branches)
 749{
 750        const char **branch_names;
 751        int i, result = 0;
 752
 753        branch_names = xmalloc(branches->nr * sizeof(*branch_names));
 754        for (i = 0; i < branches->nr; i++)
 755                branch_names[i] = branches->items[i].string;
 756        result |= repack_without_refs(branch_names, branches->nr);
 757        free(branch_names);
 758
 759        for (i = 0; i < branches->nr; i++) {
 760                struct string_list_item *item = branches->items + i;
 761                const char *refname = item->string;
 762
 763                if (delete_ref(refname, NULL, 0))
 764                        result |= error(_("Could not remove branch %s"), refname);
 765        }
 766
 767        return result;
 768}
 769
 770static int rm(int argc, const char **argv)
 771{
 772        struct option options[] = {
 773                OPT_END()
 774        };
 775        struct remote *remote;
 776        struct strbuf buf = STRBUF_INIT;
 777        struct known_remotes known_remotes = { NULL, NULL };
 778        struct string_list branches = STRING_LIST_INIT_DUP;
 779        struct string_list skipped = STRING_LIST_INIT_DUP;
 780        struct branches_for_remote cb_data;
 781        int i, result;
 782
 783        memset(&cb_data, 0, sizeof(cb_data));
 784        cb_data.branches = &branches;
 785        cb_data.skipped = &skipped;
 786        cb_data.keep = &known_remotes;
 787
 788        if (argc != 2)
 789                usage_with_options(builtin_remote_rm_usage, options);
 790
 791        remote = remote_get(argv[1]);
 792        if (!remote)
 793                die(_("No such remote: %s"), argv[1]);
 794
 795        known_remotes.to_delete = remote;
 796        for_each_remote(add_known_remote, &known_remotes);
 797
 798        read_branches();
 799        for (i = 0; i < branch_list.nr; i++) {
 800                struct string_list_item *item = branch_list.items + i;
 801                struct branch_info *info = item->util;
 802                if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 803                        const char *keys[] = { "remote", "merge", NULL }, **k;
 804                        for (k = keys; *k; k++) {
 805                                strbuf_reset(&buf);
 806                                strbuf_addf(&buf, "branch.%s.%s",
 807                                                item->string, *k);
 808                                if (git_config_set(buf.buf, NULL)) {
 809                                        strbuf_release(&buf);
 810                                        return -1;
 811                                }
 812                        }
 813                }
 814        }
 815
 816        /*
 817         * We cannot just pass a function to for_each_ref() which deletes
 818         * the branches one by one, since for_each_ref() relies on cached
 819         * refs, which are invalidated when deleting a branch.
 820         */
 821        cb_data.remote = remote;
 822        result = for_each_ref(add_branch_for_removal, &cb_data);
 823        strbuf_release(&buf);
 824
 825        if (!result)
 826                result = remove_branches(&branches);
 827        string_list_clear(&branches, 1);
 828
 829        if (skipped.nr) {
 830                fprintf_ln(stderr,
 831                           Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 832                              "to delete it, use:",
 833                              "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 834                              "to delete them, use:",
 835                              skipped.nr));
 836                for (i = 0; i < skipped.nr; i++)
 837                        fprintf(stderr, "  git branch -d %s\n",
 838                                skipped.items[i].string);
 839        }
 840        string_list_clear(&skipped, 0);
 841
 842        if (!result) {
 843                strbuf_addf(&buf, "remote.%s", remote->name);
 844                if (git_config_rename_section(buf.buf, NULL) < 1)
 845                        return error(_("Could not remove config section '%s'"), buf.buf);
 846        }
 847
 848        return result;
 849}
 850
 851static void clear_push_info(void *util, const char *string)
 852{
 853        struct push_info *info = util;
 854        free(info->dest);
 855        free(info);
 856}
 857
 858static void free_remote_ref_states(struct ref_states *states)
 859{
 860        string_list_clear(&states->new, 0);
 861        string_list_clear(&states->stale, 1);
 862        string_list_clear(&states->tracked, 0);
 863        string_list_clear(&states->heads, 0);
 864        string_list_clear_func(&states->push, clear_push_info);
 865}
 866
 867static int append_ref_to_tracked_list(const char *refname,
 868        const unsigned char *sha1, int flags, void *cb_data)
 869{
 870        struct ref_states *states = cb_data;
 871        struct refspec refspec;
 872
 873        if (flags & REF_ISSYMREF)
 874                return 0;
 875
 876        memset(&refspec, 0, sizeof(refspec));
 877        refspec.dst = (char *)refname;
 878        if (!remote_find_tracking(states->remote, &refspec))
 879                string_list_append(&states->tracked, abbrev_branch(refspec.src));
 880
 881        return 0;
 882}
 883
 884static int get_remote_ref_states(const char *name,
 885                                 struct ref_states *states,
 886                                 int query)
 887{
 888        struct transport *transport;
 889        const struct ref *remote_refs;
 890
 891        states->remote = remote_get(name);
 892        if (!states->remote)
 893                return error(_("No such remote: %s"), name);
 894
 895        read_branches();
 896
 897        if (query) {
 898                transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 899                        states->remote->url[0] : NULL);
 900                remote_refs = transport_get_remote_refs(transport);
 901                transport_disconnect(transport);
 902
 903                states->queried = 1;
 904                if (query & GET_REF_STATES)
 905                        get_ref_states(remote_refs, states);
 906                if (query & GET_HEAD_NAMES)
 907                        get_head_names(remote_refs, states);
 908                if (query & GET_PUSH_REF_STATES)
 909                        get_push_ref_states(remote_refs, states);
 910        } else {
 911                for_each_ref(append_ref_to_tracked_list, states);
 912                sort_string_list(&states->tracked);
 913                get_push_ref_states_noquery(states);
 914        }
 915
 916        return 0;
 917}
 918
 919struct show_info {
 920        struct string_list *list;
 921        struct ref_states *states;
 922        int width, width2;
 923        int any_rebase;
 924};
 925
 926static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 927{
 928        struct show_info *info = cb_data;
 929        int n = strlen(item->string);
 930        if (n > info->width)
 931                info->width = n;
 932        string_list_insert(info->list, item->string);
 933        return 0;
 934}
 935
 936static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 937{
 938        struct show_info *info = cb_data;
 939        struct ref_states *states = info->states;
 940        const char *name = item->string;
 941
 942        if (states->queried) {
 943                const char *fmt = "%s";
 944                const char *arg = "";
 945                if (string_list_has_string(&states->new, name)) {
 946                        fmt = _(" new (next fetch will store in remotes/%s)");
 947                        arg = states->remote->name;
 948                } else if (string_list_has_string(&states->tracked, name))
 949                        arg = _(" tracked");
 950                else if (string_list_has_string(&states->stale, name))
 951                        arg = _(" stale (use 'git remote prune' to remove)");
 952                else
 953                        arg = _(" ???");
 954                printf("    %-*s", info->width, name);
 955                printf(fmt, arg);
 956                printf("\n");
 957        } else
 958                printf("    %s\n", name);
 959
 960        return 0;
 961}
 962
 963static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 964{
 965        struct show_info *show_info = cb_data;
 966        struct ref_states *states = show_info->states;
 967        struct branch_info *branch_info = branch_item->util;
 968        struct string_list_item *item;
 969        int n;
 970
 971        if (!branch_info->merge.nr || !branch_info->remote_name ||
 972            strcmp(states->remote->name, branch_info->remote_name))
 973                return 0;
 974        if ((n = strlen(branch_item->string)) > show_info->width)
 975                show_info->width = n;
 976        if (branch_info->rebase)
 977                show_info->any_rebase = 1;
 978
 979        item = string_list_insert(show_info->list, branch_item->string);
 980        item->util = branch_info;
 981
 982        return 0;
 983}
 984
 985static int show_local_info_item(struct string_list_item *item, void *cb_data)
 986{
 987        struct show_info *show_info = cb_data;
 988        struct branch_info *branch_info = item->util;
 989        struct string_list *merge = &branch_info->merge;
 990        const char *also;
 991        int i;
 992
 993        if (branch_info->rebase && branch_info->merge.nr > 1) {
 994                error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"),
 995                        item->string);
 996                return 0;
 997        }
 998
 999        printf("    %-*s ", show_info->width, item->string);
1000        if (branch_info->rebase) {
1001                printf_ln(_("rebases onto remote %s"), merge->items[0].string);
1002                return 0;
1003        } else if (show_info->any_rebase) {
1004                printf_ln(_(" merges with remote %s"), merge->items[0].string);
1005                also = _("    and with remote");
1006        } else {
1007                printf_ln(_("merges with remote %s"), merge->items[0].string);
1008                also = _("   and with remote");
1009        }
1010        for (i = 1; i < merge->nr; i++)
1011                printf("    %-*s %s %s\n", show_info->width, "", also,
1012                       merge->items[i].string);
1013
1014        return 0;
1015}
1016
1017static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
1018{
1019        struct show_info *show_info = cb_data;
1020        struct push_info *push_info = push_item->util;
1021        struct string_list_item *item;
1022        int n;
1023        if ((n = strlen(push_item->string)) > show_info->width)
1024                show_info->width = n;
1025        if ((n = strlen(push_info->dest)) > show_info->width2)
1026                show_info->width2 = n;
1027        item = string_list_append(show_info->list, push_item->string);
1028        item->util = push_item->util;
1029        return 0;
1030}
1031
1032/*
1033 * Sorting comparison for a string list that has push_info
1034 * structs in its util field
1035 */
1036static int cmp_string_with_push(const void *va, const void *vb)
1037{
1038        const struct string_list_item *a = va;
1039        const struct string_list_item *b = vb;
1040        const struct push_info *a_push = a->util;
1041        const struct push_info *b_push = b->util;
1042        int cmp = strcmp(a->string, b->string);
1043        return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1044}
1045
1046static int show_push_info_item(struct string_list_item *item, void *cb_data)
1047{
1048        struct show_info *show_info = cb_data;
1049        struct push_info *push_info = item->util;
1050        const char *src = item->string, *status = NULL;
1051
1052        switch (push_info->status) {
1053        case PUSH_STATUS_CREATE:
1054                status = _("create");
1055                break;
1056        case PUSH_STATUS_DELETE:
1057                status = _("delete");
1058                src = _("(none)");
1059                break;
1060        case PUSH_STATUS_UPTODATE:
1061                status = _("up to date");
1062                break;
1063        case PUSH_STATUS_FASTFORWARD:
1064                status = _("fast-forwardable");
1065                break;
1066        case PUSH_STATUS_OUTOFDATE:
1067                status = _("local out of date");
1068                break;
1069        case PUSH_STATUS_NOTQUERIED:
1070                break;
1071        }
1072        if (status) {
1073                if (push_info->forced)
1074                        printf_ln(_("    %-*s forces to %-*s (%s)"), show_info->width, src,
1075                               show_info->width2, push_info->dest, status);
1076                else
1077                        printf_ln(_("    %-*s pushes to %-*s (%s)"), show_info->width, src,
1078                               show_info->width2, push_info->dest, status);
1079        } else {
1080                if (push_info->forced)
1081                        printf_ln(_("    %-*s forces to %s"), show_info->width, src,
1082                               push_info->dest);
1083                else
1084                        printf_ln(_("    %-*s pushes to %s"), show_info->width, src,
1085                               push_info->dest);
1086        }
1087        return 0;
1088}
1089
1090static int get_one_entry(struct remote *remote, void *priv)
1091{
1092        struct string_list *list = priv;
1093        struct strbuf url_buf = STRBUF_INIT;
1094        const char **url;
1095        int i, url_nr;
1096
1097        if (remote->url_nr > 0) {
1098                strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1099                string_list_append(list, remote->name)->util =
1100                                strbuf_detach(&url_buf, NULL);
1101        } else
1102                string_list_append(list, remote->name)->util = NULL;
1103        if (remote->pushurl_nr) {
1104                url = remote->pushurl;
1105                url_nr = remote->pushurl_nr;
1106        } else {
1107                url = remote->url;
1108                url_nr = remote->url_nr;
1109        }
1110        for (i = 0; i < url_nr; i++)
1111        {
1112                strbuf_addf(&url_buf, "%s (push)", url[i]);
1113                string_list_append(list, remote->name)->util =
1114                                strbuf_detach(&url_buf, NULL);
1115        }
1116
1117        return 0;
1118}
1119
1120static int show_all(void)
1121{
1122        struct string_list list = STRING_LIST_INIT_NODUP;
1123        int result;
1124
1125        list.strdup_strings = 1;
1126        result = for_each_remote(get_one_entry, &list);
1127
1128        if (!result) {
1129                int i;
1130
1131                sort_string_list(&list);
1132                for (i = 0; i < list.nr; i++) {
1133                        struct string_list_item *item = list.items + i;
1134                        if (verbose)
1135                                printf("%s\t%s\n", item->string,
1136                                        item->util ? (const char *)item->util : "");
1137                        else {
1138                                if (i && !strcmp((item - 1)->string, item->string))
1139                                        continue;
1140                                printf("%s\n", item->string);
1141                        }
1142                }
1143        }
1144        string_list_clear(&list, 1);
1145        return result;
1146}
1147
1148static int show(int argc, const char **argv)
1149{
1150        int no_query = 0, result = 0, query_flag = 0;
1151        struct option options[] = {
1152                OPT_BOOL('n', NULL, &no_query, N_("do not query remotes")),
1153                OPT_END()
1154        };
1155        struct ref_states states;
1156        struct string_list info_list = STRING_LIST_INIT_NODUP;
1157        struct show_info info;
1158
1159        argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1160                             0);
1161
1162        if (argc < 1)
1163                return show_all();
1164
1165        if (!no_query)
1166                query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1167
1168        memset(&states, 0, sizeof(states));
1169        memset(&info, 0, sizeof(info));
1170        info.states = &states;
1171        info.list = &info_list;
1172        for (; argc; argc--, argv++) {
1173                int i;
1174                const char **url;
1175                int url_nr;
1176
1177                get_remote_ref_states(*argv, &states, query_flag);
1178
1179                printf_ln(_("* remote %s"), *argv);
1180                printf_ln(_("  Fetch URL: %s"), states.remote->url_nr > 0 ?
1181                       states.remote->url[0] : _("(no URL)"));
1182                if (states.remote->pushurl_nr) {
1183                        url = states.remote->pushurl;
1184                        url_nr = states.remote->pushurl_nr;
1185                } else {
1186                        url = states.remote->url;
1187                        url_nr = states.remote->url_nr;
1188                }
1189                for (i = 0; i < url_nr; i++)
1190                        printf_ln(_("  Push  URL: %s"), url[i]);
1191                if (!i)
1192                        printf_ln(_("  Push  URL: %s"), "(no URL)");
1193                if (no_query)
1194                        printf_ln(_("  HEAD branch: %s"), "(not queried)");
1195                else if (!states.heads.nr)
1196                        printf_ln(_("  HEAD branch: %s"), "(unknown)");
1197                else if (states.heads.nr == 1)
1198                        printf_ln(_("  HEAD branch: %s"), states.heads.items[0].string);
1199                else {
1200                        printf(_("  HEAD branch (remote HEAD is ambiguous,"
1201                                 " may be one of the following):\n"));
1202                        for (i = 0; i < states.heads.nr; i++)
1203                                printf("    %s\n", states.heads.items[i].string);
1204                }
1205
1206                /* remote branch info */
1207                info.width = 0;
1208                for_each_string_list(&states.new, add_remote_to_show_info, &info);
1209                for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1210                for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1211                if (info.list->nr)
1212                        printf_ln(Q_("  Remote branch:%s",
1213                                     "  Remote branches:%s",
1214                                     info.list->nr),
1215                                  no_query ? _(" (status not queried)") : "");
1216                for_each_string_list(info.list, show_remote_info_item, &info);
1217                string_list_clear(info.list, 0);
1218
1219                /* git pull info */
1220                info.width = 0;
1221                info.any_rebase = 0;
1222                for_each_string_list(&branch_list, add_local_to_show_info, &info);
1223                if (info.list->nr)
1224                        printf_ln(Q_("  Local branch configured for 'git pull':",
1225                                     "  Local branches configured for 'git pull':",
1226                                     info.list->nr));
1227                for_each_string_list(info.list, show_local_info_item, &info);
1228                string_list_clear(info.list, 0);
1229
1230                /* git push info */
1231                if (states.remote->mirror)
1232                        printf_ln(_("  Local refs will be mirrored by 'git push'"));
1233
1234                info.width = info.width2 = 0;
1235                for_each_string_list(&states.push, add_push_to_show_info, &info);
1236                qsort(info.list->items, info.list->nr,
1237                        sizeof(*info.list->items), cmp_string_with_push);
1238                if (info.list->nr)
1239                        printf_ln(Q_("  Local ref configured for 'git push'%s:",
1240                                     "  Local refs configured for 'git push'%s:",
1241                                     info.list->nr),
1242                                  no_query ? _(" (status not queried)") : "");
1243                for_each_string_list(info.list, show_push_info_item, &info);
1244                string_list_clear(info.list, 0);
1245
1246                free_remote_ref_states(&states);
1247        }
1248
1249        return result;
1250}
1251
1252static int set_head(int argc, const char **argv)
1253{
1254        int i, opt_a = 0, opt_d = 0, result = 0;
1255        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1256        char *head_name = NULL;
1257
1258        struct option options[] = {
1259                OPT_BOOL('a', "auto", &opt_a,
1260                         N_("set refs/remotes/<name>/HEAD according to remote")),
1261                OPT_BOOL('d', "delete", &opt_d,
1262                         N_("delete refs/remotes/<name>/HEAD")),
1263                OPT_END()
1264        };
1265        argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1266                             0);
1267        if (argc)
1268                strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1269
1270        if (!opt_a && !opt_d && argc == 2) {
1271                head_name = xstrdup(argv[1]);
1272        } else if (opt_a && !opt_d && argc == 1) {
1273                struct ref_states states;
1274                memset(&states, 0, sizeof(states));
1275                get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1276                if (!states.heads.nr)
1277                        result |= error(_("Cannot determine remote HEAD"));
1278                else if (states.heads.nr > 1) {
1279                        result |= error(_("Multiple remote HEAD branches. "
1280                                          "Please choose one explicitly with:"));
1281                        for (i = 0; i < states.heads.nr; i++)
1282                                fprintf(stderr, "  git remote set-head %s %s\n",
1283                                        argv[0], states.heads.items[i].string);
1284                } else
1285                        head_name = xstrdup(states.heads.items[0].string);
1286                free_remote_ref_states(&states);
1287        } else if (opt_d && !opt_a && argc == 1) {
1288                if (delete_ref(buf.buf, NULL, REF_NODEREF))
1289                        result |= error(_("Could not delete %s"), buf.buf);
1290        } else
1291                usage_with_options(builtin_remote_sethead_usage, options);
1292
1293        if (head_name) {
1294                strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1295                /* make sure it's valid */
1296                if (!ref_exists(buf2.buf))
1297                        result |= error(_("Not a valid ref: %s"), buf2.buf);
1298                else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1299                        result |= error(_("Could not setup %s"), buf.buf);
1300                if (opt_a)
1301                        printf("%s/HEAD set to %s\n", argv[0], head_name);
1302                free(head_name);
1303        }
1304
1305        strbuf_release(&buf);
1306        strbuf_release(&buf2);
1307        return result;
1308}
1309
1310static int prune_remote(const char *remote, int dry_run)
1311{
1312        int result = 0, i;
1313        struct ref_states states;
1314        struct string_list delete_refs_list = STRING_LIST_INIT_NODUP;
1315        const char **delete_refs;
1316        const char *dangling_msg = dry_run
1317                ? _(" %s will become dangling!")
1318                : _(" %s has become dangling!");
1319
1320        memset(&states, 0, sizeof(states));
1321        get_remote_ref_states(remote, &states, GET_REF_STATES);
1322
1323        if (states.stale.nr) {
1324                printf_ln(_("Pruning %s"), remote);
1325                printf_ln(_("URL: %s"),
1326                       states.remote->url_nr
1327                       ? states.remote->url[0]
1328                       : _("(no URL)"));
1329
1330                delete_refs = xmalloc(states.stale.nr * sizeof(*delete_refs));
1331                for (i = 0; i < states.stale.nr; i++)
1332                        delete_refs[i] = states.stale.items[i].util;
1333                if (!dry_run)
1334                        result |= repack_without_refs(delete_refs, states.stale.nr);
1335                free(delete_refs);
1336        }
1337
1338        for (i = 0; i < states.stale.nr; i++) {
1339                const char *refname = states.stale.items[i].util;
1340
1341                string_list_insert(&delete_refs_list, refname);
1342
1343                if (!dry_run)
1344                        result |= delete_ref(refname, NULL, 0);
1345
1346                if (dry_run)
1347                        printf_ln(_(" * [would prune] %s"),
1348                               abbrev_ref(refname, "refs/remotes/"));
1349                else
1350                        printf_ln(_(" * [pruned] %s"),
1351                               abbrev_ref(refname, "refs/remotes/"));
1352        }
1353
1354        warn_dangling_symrefs(stdout, dangling_msg, &delete_refs_list);
1355        string_list_clear(&delete_refs_list, 0);
1356
1357        free_remote_ref_states(&states);
1358        return result;
1359}
1360
1361static int prune(int argc, const char **argv)
1362{
1363        int dry_run = 0, result = 0;
1364        struct option options[] = {
1365                OPT__DRY_RUN(&dry_run, N_("dry run")),
1366                OPT_END()
1367        };
1368
1369        argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1370                             0);
1371
1372        if (argc < 1)
1373                usage_with_options(builtin_remote_prune_usage, options);
1374
1375        for (; argc; argc--, argv++)
1376                result |= prune_remote(*argv, dry_run);
1377
1378        return result;
1379}
1380
1381static int get_remote_default(const char *key, const char *value, void *priv)
1382{
1383        if (strcmp(key, "remotes.default") == 0) {
1384                int *found = priv;
1385                *found = 1;
1386        }
1387        return 0;
1388}
1389
1390static int update(int argc, const char **argv)
1391{
1392        int i, prune = -1;
1393        struct option options[] = {
1394                OPT_BOOL('p', "prune", &prune,
1395                         N_("prune remotes after fetching")),
1396                OPT_END()
1397        };
1398        struct argv_array fetch_argv = ARGV_ARRAY_INIT;
1399        int default_defined = 0;
1400        int retval;
1401
1402        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1403                             PARSE_OPT_KEEP_ARGV0);
1404
1405        argv_array_push(&fetch_argv, "fetch");
1406
1407        if (prune != -1)
1408                argv_array_push(&fetch_argv, prune ? "--prune" : "--no-prune");
1409        if (verbose)
1410                argv_array_push(&fetch_argv, "-v");
1411        argv_array_push(&fetch_argv, "--multiple");
1412        if (argc < 2)
1413                argv_array_push(&fetch_argv, "default");
1414        for (i = 1; i < argc; i++)
1415                argv_array_push(&fetch_argv, argv[i]);
1416
1417        if (strcmp(fetch_argv.argv[fetch_argv.argc-1], "default") == 0) {
1418                git_config(get_remote_default, &default_defined);
1419                if (!default_defined) {
1420                        argv_array_pop(&fetch_argv);
1421                        argv_array_push(&fetch_argv, "--all");
1422                }
1423        }
1424
1425        retval = run_command_v_opt(fetch_argv.argv, RUN_GIT_CMD);
1426        argv_array_clear(&fetch_argv);
1427        return retval;
1428}
1429
1430static int remove_all_fetch_refspecs(const char *remote, const char *key)
1431{
1432        return git_config_set_multivar(key, NULL, NULL, 1);
1433}
1434
1435static int add_branches(struct remote *remote, const char **branches,
1436                        const char *key)
1437{
1438        const char *remotename = remote->name;
1439        int mirror = remote->mirror;
1440        struct strbuf refspec = STRBUF_INIT;
1441
1442        for (; *branches; branches++)
1443                if (add_branch(key, *branches, remotename, mirror, &refspec)) {
1444                        strbuf_release(&refspec);
1445                        return 1;
1446                }
1447
1448        strbuf_release(&refspec);
1449        return 0;
1450}
1451
1452static int set_remote_branches(const char *remotename, const char **branches,
1453                                int add_mode)
1454{
1455        struct strbuf key = STRBUF_INIT;
1456        struct remote *remote;
1457
1458        strbuf_addf(&key, "remote.%s.fetch", remotename);
1459
1460        if (!remote_is_configured(remotename))
1461                die(_("No such remote '%s'"), remotename);
1462        remote = remote_get(remotename);
1463
1464        if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
1465                strbuf_release(&key);
1466                return 1;
1467        }
1468        if (add_branches(remote, branches, key.buf)) {
1469                strbuf_release(&key);
1470                return 1;
1471        }
1472
1473        strbuf_release(&key);
1474        return 0;
1475}
1476
1477static int set_branches(int argc, const char **argv)
1478{
1479        int add_mode = 0;
1480        struct option options[] = {
1481                OPT_BOOL('\0', "add", &add_mode, N_("add branch")),
1482                OPT_END()
1483        };
1484
1485        argc = parse_options(argc, argv, NULL, options,
1486                             builtin_remote_setbranches_usage, 0);
1487        if (argc == 0) {
1488                error(_("no remote specified"));
1489                usage_with_options(builtin_remote_setbranches_usage, options);
1490        }
1491        argv[argc] = NULL;
1492
1493        return set_remote_branches(argv[0], argv + 1, add_mode);
1494}
1495
1496static int set_url(int argc, const char **argv)
1497{
1498        int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1499        int matches = 0, negative_matches = 0;
1500        const char *remotename = NULL;
1501        const char *newurl = NULL;
1502        const char *oldurl = NULL;
1503        struct remote *remote;
1504        regex_t old_regex;
1505        const char **urlset;
1506        int urlset_nr;
1507        struct strbuf name_buf = STRBUF_INIT;
1508        struct option options[] = {
1509                OPT_BOOL('\0', "push", &push_mode,
1510                         N_("manipulate push URLs")),
1511                OPT_BOOL('\0', "add", &add_mode,
1512                         N_("add URL")),
1513                OPT_BOOL('\0', "delete", &delete_mode,
1514                            N_("delete URLs")),
1515                OPT_END()
1516        };
1517        argc = parse_options(argc, argv, NULL, options, builtin_remote_seturl_usage,
1518                             PARSE_OPT_KEEP_ARGV0);
1519
1520        if (add_mode && delete_mode)
1521                die(_("--add --delete doesn't make sense"));
1522
1523        if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1524                usage_with_options(builtin_remote_seturl_usage, options);
1525
1526        remotename = argv[1];
1527        newurl = argv[2];
1528        if (argc > 3)
1529                oldurl = argv[3];
1530
1531        if (delete_mode)
1532                oldurl = newurl;
1533
1534        if (!remote_is_configured(remotename))
1535                die(_("No such remote '%s'"), remotename);
1536        remote = remote_get(remotename);
1537
1538        if (push_mode) {
1539                strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1540                urlset = remote->pushurl;
1541                urlset_nr = remote->pushurl_nr;
1542        } else {
1543                strbuf_addf(&name_buf, "remote.%s.url", remotename);
1544                urlset = remote->url;
1545                urlset_nr = remote->url_nr;
1546        }
1547
1548        /* Special cases that add new entry. */
1549        if ((!oldurl && !delete_mode) || add_mode) {
1550                if (add_mode)
1551                        git_config_set_multivar(name_buf.buf, newurl,
1552                                "^$", 0);
1553                else
1554                        git_config_set(name_buf.buf, newurl);
1555                strbuf_release(&name_buf);
1556                return 0;
1557        }
1558
1559        /* Old URL specified. Demand that one matches. */
1560        if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1561                die(_("Invalid old URL pattern: %s"), oldurl);
1562
1563        for (i = 0; i < urlset_nr; i++)
1564                if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1565                        matches++;
1566                else
1567                        negative_matches++;
1568        if (!delete_mode && !matches)
1569                die(_("No such URL found: %s"), oldurl);
1570        if (delete_mode && !negative_matches && !push_mode)
1571                die(_("Will not delete all non-push URLs"));
1572
1573        regfree(&old_regex);
1574
1575        if (!delete_mode)
1576                git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1577        else
1578                git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1579        return 0;
1580}
1581
1582int cmd_remote(int argc, const char **argv, const char *prefix)
1583{
1584        struct option options[] = {
1585                OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")),
1586                OPT_END()
1587        };
1588        int result;
1589
1590        argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1591                PARSE_OPT_STOP_AT_NON_OPTION);
1592
1593        if (argc < 1)
1594                result = show_all();
1595        else if (!strcmp(argv[0], "add"))
1596                result = add(argc, argv);
1597        else if (!strcmp(argv[0], "rename"))
1598                result = mv(argc, argv);
1599        else if (!strcmp(argv[0], "rm") || !strcmp(argv[0], "remove"))
1600                result = rm(argc, argv);
1601        else if (!strcmp(argv[0], "set-head"))
1602                result = set_head(argc, argv);
1603        else if (!strcmp(argv[0], "set-branches"))
1604                result = set_branches(argc, argv);
1605        else if (!strcmp(argv[0], "set-url"))
1606                result = set_url(argc, argv);
1607        else if (!strcmp(argv[0], "show"))
1608                result = show(argc, argv);
1609        else if (!strcmp(argv[0], "prune"))
1610                result = prune(argc, argv);
1611        else if (!strcmp(argv[0], "update"))
1612                result = update(argc, argv);
1613        else {
1614                error(_("Unknown subcommand: %s"), argv[0]);
1615                usage_with_options(builtin_remote_usage, options);
1616        }
1617
1618        return result ? 1 : 0;
1619}