builtin / remote.con commit builtin/remote.c:update(): use struct argv_array (8607590)
   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 inline int postfixcmp(const char *string, const char *postfix)
  82{
  83        int len1 = strlen(string), len2 = strlen(postfix);
  84        if (len1 < len2)
  85                return 1;
  86        return strcmp(string + len1 - len2, postfix);
  87}
  88
  89static int fetch_remote(const char *name)
  90{
  91        const char *argv[] = { "fetch", name, NULL, NULL };
  92        if (verbose) {
  93                argv[1] = "-v";
  94                argv[2] = name;
  95        }
  96        printf_ln(_("Updating %s"), name);
  97        if (run_command_v_opt(argv, RUN_GIT_CMD))
  98                return error(_("Could not fetch %s"), name);
  99        return 0;
 100}
 101
 102enum {
 103        TAGS_UNSET = 0,
 104        TAGS_DEFAULT = 1,
 105        TAGS_SET = 2
 106};
 107
 108#define MIRROR_NONE 0
 109#define MIRROR_FETCH 1
 110#define MIRROR_PUSH 2
 111#define MIRROR_BOTH (MIRROR_FETCH|MIRROR_PUSH)
 112
 113static int add_branch(const char *key, const char *branchname,
 114                const char *remotename, int mirror, struct strbuf *tmp)
 115{
 116        strbuf_reset(tmp);
 117        strbuf_addch(tmp, '+');
 118        if (mirror)
 119                strbuf_addf(tmp, "refs/%s:refs/%s",
 120                                branchname, branchname);
 121        else
 122                strbuf_addf(tmp, "refs/heads/%s:refs/remotes/%s/%s",
 123                                branchname, remotename, branchname);
 124        return git_config_set_multivar(key, tmp->buf, "^$", 0);
 125}
 126
 127static const char mirror_advice[] =
 128N_("--mirror is dangerous and deprecated; please\n"
 129   "\t use --mirror=fetch or --mirror=push instead");
 130
 131static int parse_mirror_opt(const struct option *opt, const char *arg, int not)
 132{
 133        unsigned *mirror = opt->value;
 134        if (not)
 135                *mirror = MIRROR_NONE;
 136        else if (!arg) {
 137                warning("%s", _(mirror_advice));
 138                *mirror = MIRROR_BOTH;
 139        }
 140        else if (!strcmp(arg, "fetch"))
 141                *mirror = MIRROR_FETCH;
 142        else if (!strcmp(arg, "push"))
 143                *mirror = MIRROR_PUSH;
 144        else
 145                return error(_("unknown mirror argument: %s"), arg);
 146        return 0;
 147}
 148
 149static int add(int argc, const char **argv)
 150{
 151        int fetch = 0, fetch_tags = TAGS_DEFAULT;
 152        unsigned mirror = MIRROR_NONE;
 153        struct string_list track = STRING_LIST_INIT_NODUP;
 154        const char *master = NULL;
 155        struct remote *remote;
 156        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
 157        const char *name, *url;
 158        int i;
 159
 160        struct option options[] = {
 161                OPT_BOOL('f', "fetch", &fetch, N_("fetch the remote branches")),
 162                OPT_SET_INT(0, "tags", &fetch_tags,
 163                            N_("import all tags and associated objects when fetching"),
 164                            TAGS_SET),
 165                OPT_SET_INT(0, NULL, &fetch_tags,
 166                            N_("or do not fetch any tag at all (--no-tags)"), TAGS_UNSET),
 167                OPT_STRING_LIST('t', "track", &track, N_("branch"),
 168                                N_("branch(es) to track")),
 169                OPT_STRING('m', "master", &master, N_("branch"), N_("master branch")),
 170                { OPTION_CALLBACK, 0, "mirror", &mirror, N_("push|fetch"),
 171                        N_("set up remote as a mirror to push to or fetch from"),
 172                        PARSE_OPT_OPTARG, parse_mirror_opt },
 173                OPT_END()
 174        };
 175
 176        argc = parse_options(argc, argv, NULL, options, builtin_remote_add_usage,
 177                             0);
 178
 179        if (argc != 2)
 180                usage_with_options(builtin_remote_add_usage, options);
 181
 182        if (mirror && master)
 183                die(_("specifying a master branch makes no sense with --mirror"));
 184        if (mirror && !(mirror & MIRROR_FETCH) && track.nr)
 185                die(_("specifying branches to track makes sense only with fetch mirrors"));
 186
 187        name = argv[0];
 188        url = argv[1];
 189
 190        remote = remote_get(name);
 191        if (remote && (remote->url_nr > 1 || strcmp(name, remote->url[0]) ||
 192                        remote->fetch_refspec_nr))
 193                die(_("remote %s already exists."), name);
 194
 195        strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
 196        if (!valid_fetch_refspec(buf2.buf))
 197                die(_("'%s' is not a valid remote name"), name);
 198
 199        strbuf_addf(&buf, "remote.%s.url", name);
 200        if (git_config_set(buf.buf, url))
 201                return 1;
 202
 203        if (!mirror || mirror & MIRROR_FETCH) {
 204                strbuf_reset(&buf);
 205                strbuf_addf(&buf, "remote.%s.fetch", name);
 206                if (track.nr == 0)
 207                        string_list_append(&track, "*");
 208                for (i = 0; i < track.nr; i++) {
 209                        if (add_branch(buf.buf, track.items[i].string,
 210                                       name, mirror, &buf2))
 211                                return 1;
 212                }
 213        }
 214
 215        if (mirror & MIRROR_PUSH) {
 216                strbuf_reset(&buf);
 217                strbuf_addf(&buf, "remote.%s.mirror", name);
 218                if (git_config_set(buf.buf, "true"))
 219                        return 1;
 220        }
 221
 222        if (fetch_tags != TAGS_DEFAULT) {
 223                strbuf_reset(&buf);
 224                strbuf_addf(&buf, "remote.%s.tagopt", name);
 225                if (git_config_set(buf.buf,
 226                        fetch_tags == TAGS_SET ? "--tags" : "--no-tags"))
 227                        return 1;
 228        }
 229
 230        if (fetch && fetch_remote(name))
 231                return 1;
 232
 233        if (master) {
 234                strbuf_reset(&buf);
 235                strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
 236
 237                strbuf_reset(&buf2);
 238                strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
 239
 240                if (create_symref(buf.buf, buf2.buf, "remote add"))
 241                        return error(_("Could not setup master '%s'"), master);
 242        }
 243
 244        strbuf_release(&buf);
 245        strbuf_release(&buf2);
 246        string_list_clear(&track, 0);
 247
 248        return 0;
 249}
 250
 251struct branch_info {
 252        char *remote_name;
 253        struct string_list merge;
 254        int rebase;
 255};
 256
 257static struct string_list branch_list;
 258
 259static const char *abbrev_ref(const char *name, const char *prefix)
 260{
 261        const char *abbrev = skip_prefix(name, prefix);
 262        if (abbrev)
 263                return abbrev;
 264        return name;
 265}
 266#define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 267
 268static int config_read_branches(const char *key, const char *value, void *cb)
 269{
 270        if (!prefixcmp(key, "branch.")) {
 271                const char *orig_key = key;
 272                char *name;
 273                struct string_list_item *item;
 274                struct branch_info *info;
 275                enum { REMOTE, MERGE, REBASE } type;
 276
 277                key += 7;
 278                if (!postfixcmp(key, ".remote")) {
 279                        name = xstrndup(key, strlen(key) - 7);
 280                        type = REMOTE;
 281                } else if (!postfixcmp(key, ".merge")) {
 282                        name = xstrndup(key, strlen(key) - 6);
 283                        type = MERGE;
 284                } else if (!postfixcmp(key, ".rebase")) {
 285                        name = xstrndup(key, strlen(key) - 7);
 286                        type = REBASE;
 287                } else
 288                        return 0;
 289
 290                item = string_list_insert(&branch_list, name);
 291
 292                if (!item->util)
 293                        item->util = xcalloc(sizeof(struct branch_info), 1);
 294                info = item->util;
 295                if (type == REMOTE) {
 296                        if (info->remote_name)
 297                                warning(_("more than one %s"), orig_key);
 298                        info->remote_name = xstrdup(value);
 299                } else if (type == MERGE) {
 300                        char *space = strchr(value, ' ');
 301                        value = abbrev_branch(value);
 302                        while (space) {
 303                                char *merge;
 304                                merge = xstrndup(value, space - value);
 305                                string_list_append(&info->merge, merge);
 306                                value = abbrev_branch(space + 1);
 307                                space = strchr(value, ' ');
 308                        }
 309                        string_list_append(&info->merge, xstrdup(value));
 310                } else
 311                        info->rebase = git_config_bool(orig_key, value);
 312        }
 313        return 0;
 314}
 315
 316static void read_branches(void)
 317{
 318        if (branch_list.nr)
 319                return;
 320        git_config(config_read_branches, NULL);
 321}
 322
 323struct ref_states {
 324        struct remote *remote;
 325        struct string_list new, stale, tracked, heads, push;
 326        int queried;
 327};
 328
 329static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 330{
 331        struct ref *fetch_map = NULL, **tail = &fetch_map;
 332        struct ref *ref, *stale_refs;
 333        int i;
 334
 335        for (i = 0; i < states->remote->fetch_refspec_nr; i++)
 336                if (get_fetch_map(remote_refs, states->remote->fetch + i, &tail, 1))
 337                        die(_("Could not get fetch map for refspec %s"),
 338                                states->remote->fetch_refspec[i]);
 339
 340        states->new.strdup_strings = 1;
 341        states->tracked.strdup_strings = 1;
 342        states->stale.strdup_strings = 1;
 343        for (ref = fetch_map; ref; ref = ref->next) {
 344                if (!ref->peer_ref || !ref_exists(ref->peer_ref->name))
 345                        string_list_append(&states->new, abbrev_branch(ref->name));
 346                else
 347                        string_list_append(&states->tracked, abbrev_branch(ref->name));
 348        }
 349        stale_refs = get_stale_heads(states->remote->fetch,
 350                                     states->remote->fetch_refspec_nr, fetch_map);
 351        for (ref = stale_refs; ref; ref = ref->next) {
 352                struct string_list_item *item =
 353                        string_list_append(&states->stale, abbrev_branch(ref->name));
 354                item->util = xstrdup(ref->name);
 355        }
 356        free_refs(stale_refs);
 357        free_refs(fetch_map);
 358
 359        sort_string_list(&states->new);
 360        sort_string_list(&states->tracked);
 361        sort_string_list(&states->stale);
 362
 363        return 0;
 364}
 365
 366struct push_info {
 367        char *dest;
 368        int forced;
 369        enum {
 370                PUSH_STATUS_CREATE = 0,
 371                PUSH_STATUS_DELETE,
 372                PUSH_STATUS_UPTODATE,
 373                PUSH_STATUS_FASTFORWARD,
 374                PUSH_STATUS_OUTOFDATE,
 375                PUSH_STATUS_NOTQUERIED
 376        } status;
 377};
 378
 379static int get_push_ref_states(const struct ref *remote_refs,
 380        struct ref_states *states)
 381{
 382        struct remote *remote = states->remote;
 383        struct ref *ref, *local_refs, *push_map;
 384        if (remote->mirror)
 385                return 0;
 386
 387        local_refs = get_local_heads();
 388        push_map = copy_ref_list(remote_refs);
 389
 390        match_push_refs(local_refs, &push_map, remote->push_refspec_nr,
 391                        remote->push_refspec, MATCH_REFS_NONE);
 392
 393        states->push.strdup_strings = 1;
 394        for (ref = push_map; ref; ref = ref->next) {
 395                struct string_list_item *item;
 396                struct push_info *info;
 397
 398                if (!ref->peer_ref)
 399                        continue;
 400                hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
 401
 402                item = string_list_append(&states->push,
 403                                          abbrev_branch(ref->peer_ref->name));
 404                item->util = xcalloc(sizeof(struct push_info), 1);
 405                info = item->util;
 406                info->forced = ref->force;
 407                info->dest = xstrdup(abbrev_branch(ref->name));
 408
 409                if (is_null_sha1(ref->new_sha1)) {
 410                        info->status = PUSH_STATUS_DELETE;
 411                } else if (!hashcmp(ref->old_sha1, ref->new_sha1))
 412                        info->status = PUSH_STATUS_UPTODATE;
 413                else if (is_null_sha1(ref->old_sha1))
 414                        info->status = PUSH_STATUS_CREATE;
 415                else if (has_sha1_file(ref->old_sha1) &&
 416                         ref_newer(ref->new_sha1, ref->old_sha1))
 417                        info->status = PUSH_STATUS_FASTFORWARD;
 418                else
 419                        info->status = PUSH_STATUS_OUTOFDATE;
 420        }
 421        free_refs(local_refs);
 422        free_refs(push_map);
 423        return 0;
 424}
 425
 426static int get_push_ref_states_noquery(struct ref_states *states)
 427{
 428        int i;
 429        struct remote *remote = states->remote;
 430        struct string_list_item *item;
 431        struct push_info *info;
 432
 433        if (remote->mirror)
 434                return 0;
 435
 436        states->push.strdup_strings = 1;
 437        if (!remote->push_refspec_nr) {
 438                item = string_list_append(&states->push, _("(matching)"));
 439                info = item->util = xcalloc(sizeof(struct push_info), 1);
 440                info->status = PUSH_STATUS_NOTQUERIED;
 441                info->dest = xstrdup(item->string);
 442        }
 443        for (i = 0; i < remote->push_refspec_nr; i++) {
 444                struct refspec *spec = remote->push + i;
 445                if (spec->matching)
 446                        item = string_list_append(&states->push, _("(matching)"));
 447                else if (strlen(spec->src))
 448                        item = string_list_append(&states->push, spec->src);
 449                else
 450                        item = string_list_append(&states->push, _("(delete)"));
 451
 452                info = item->util = xcalloc(sizeof(struct push_info), 1);
 453                info->forced = spec->force;
 454                info->status = PUSH_STATUS_NOTQUERIED;
 455                info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 456        }
 457        return 0;
 458}
 459
 460static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 461{
 462        struct ref *ref, *matches;
 463        struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 464        struct refspec refspec;
 465
 466        refspec.force = 0;
 467        refspec.pattern = 1;
 468        refspec.src = refspec.dst = "refs/heads/*";
 469        states->heads.strdup_strings = 1;
 470        get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 471        matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 472                                    fetch_map, 1);
 473        for (ref = matches; ref; ref = ref->next)
 474                string_list_append(&states->heads, abbrev_branch(ref->name));
 475
 476        free_refs(fetch_map);
 477        free_refs(matches);
 478
 479        return 0;
 480}
 481
 482struct known_remote {
 483        struct known_remote *next;
 484        struct remote *remote;
 485};
 486
 487struct known_remotes {
 488        struct remote *to_delete;
 489        struct known_remote *list;
 490};
 491
 492static int add_known_remote(struct remote *remote, void *cb_data)
 493{
 494        struct known_remotes *all = cb_data;
 495        struct known_remote *r;
 496
 497        if (!strcmp(all->to_delete->name, remote->name))
 498                return 0;
 499
 500        r = xmalloc(sizeof(*r));
 501        r->remote = remote;
 502        r->next = all->list;
 503        all->list = r;
 504        return 0;
 505}
 506
 507struct branches_for_remote {
 508        struct remote *remote;
 509        struct string_list *branches, *skipped;
 510        struct known_remotes *keep;
 511};
 512
 513static int add_branch_for_removal(const char *refname,
 514        const unsigned char *sha1, int flags, void *cb_data)
 515{
 516        struct branches_for_remote *branches = cb_data;
 517        struct refspec refspec;
 518        struct string_list_item *item;
 519        struct known_remote *kr;
 520
 521        memset(&refspec, 0, sizeof(refspec));
 522        refspec.dst = (char *)refname;
 523        if (remote_find_tracking(branches->remote, &refspec))
 524                return 0;
 525
 526        /* don't delete a branch if another remote also uses it */
 527        for (kr = branches->keep->list; kr; kr = kr->next) {
 528                memset(&refspec, 0, sizeof(refspec));
 529                refspec.dst = (char *)refname;
 530                if (!remote_find_tracking(kr->remote, &refspec))
 531                        return 0;
 532        }
 533
 534        /* don't delete non-remote-tracking refs */
 535        if (prefixcmp(refname, "refs/remotes/")) {
 536                /* advise user how to delete local branches */
 537                if (!prefixcmp(refname, "refs/heads/"))
 538                        string_list_append(branches->skipped,
 539                                           abbrev_branch(refname));
 540                /* silently skip over other non-remote refs */
 541                return 0;
 542        }
 543
 544        /* make sure that symrefs are deleted */
 545        if (flags & REF_ISSYMREF)
 546                return unlink(git_path("%s", refname));
 547
 548        item = string_list_append(branches->branches, refname);
 549        item->util = xmalloc(20);
 550        hashcpy(item->util, sha1);
 551
 552        return 0;
 553}
 554
 555struct rename_info {
 556        const char *old;
 557        const char *new;
 558        struct string_list *remote_branches;
 559};
 560
 561static int read_remote_branches(const char *refname,
 562        const unsigned char *sha1, int flags, void *cb_data)
 563{
 564        struct rename_info *rename = cb_data;
 565        struct strbuf buf = STRBUF_INIT;
 566        struct string_list_item *item;
 567        int flag;
 568        unsigned char orig_sha1[20];
 569        const char *symref;
 570
 571        strbuf_addf(&buf, "refs/remotes/%s/", rename->old);
 572        if (!prefixcmp(refname, buf.buf)) {
 573                item = string_list_append(rename->remote_branches, xstrdup(refname));
 574                symref = resolve_ref_unsafe(refname, orig_sha1, 1, &flag);
 575                if (flag & REF_ISSYMREF)
 576                        item->util = xstrdup(symref);
 577                else
 578                        item->util = NULL;
 579        }
 580
 581        return 0;
 582}
 583
 584static int migrate_file(struct remote *remote)
 585{
 586        struct strbuf buf = STRBUF_INIT;
 587        int i;
 588        char *path = NULL;
 589
 590        strbuf_addf(&buf, "remote.%s.url", remote->name);
 591        for (i = 0; i < remote->url_nr; i++)
 592                if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0))
 593                        return error(_("Could not append '%s' to '%s'"),
 594                                        remote->url[i], buf.buf);
 595        strbuf_reset(&buf);
 596        strbuf_addf(&buf, "remote.%s.push", remote->name);
 597        for (i = 0; i < remote->push_refspec_nr; i++)
 598                if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0))
 599                        return error(_("Could not append '%s' to '%s'"),
 600                                        remote->push_refspec[i], buf.buf);
 601        strbuf_reset(&buf);
 602        strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 603        for (i = 0; i < remote->fetch_refspec_nr; i++)
 604                if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0))
 605                        return error(_("Could not append '%s' to '%s'"),
 606                                        remote->fetch_refspec[i], buf.buf);
 607        if (remote->origin == REMOTE_REMOTES)
 608                path = git_path("remotes/%s", remote->name);
 609        else if (remote->origin == REMOTE_BRANCHES)
 610                path = git_path("branches/%s", remote->name);
 611        if (path)
 612                unlink_or_warn(path);
 613        return 0;
 614}
 615
 616static int mv(int argc, const char **argv)
 617{
 618        struct option options[] = {
 619                OPT_END()
 620        };
 621        struct remote *oldremote, *newremote;
 622        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT,
 623                old_remote_context = STRBUF_INIT;
 624        struct string_list remote_branches = STRING_LIST_INIT_NODUP;
 625        struct rename_info rename;
 626        int i, refspec_updated = 0;
 627
 628        if (argc != 3)
 629                usage_with_options(builtin_remote_rename_usage, options);
 630
 631        rename.old = argv[1];
 632        rename.new = argv[2];
 633        rename.remote_branches = &remote_branches;
 634
 635        oldremote = remote_get(rename.old);
 636        if (!oldremote)
 637                die(_("No such remote: %s"), rename.old);
 638
 639        if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
 640                return migrate_file(oldremote);
 641
 642        newremote = remote_get(rename.new);
 643        if (newremote && (newremote->url_nr > 1 || newremote->fetch_refspec_nr))
 644                die(_("remote %s already exists."), rename.new);
 645
 646        strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
 647        if (!valid_fetch_refspec(buf.buf))
 648                die(_("'%s' is not a valid remote name"), rename.new);
 649
 650        strbuf_reset(&buf);
 651        strbuf_addf(&buf, "remote.%s", rename.old);
 652        strbuf_addf(&buf2, "remote.%s", rename.new);
 653        if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 654                return error(_("Could not rename config section '%s' to '%s'"),
 655                                buf.buf, buf2.buf);
 656
 657        strbuf_reset(&buf);
 658        strbuf_addf(&buf, "remote.%s.fetch", rename.new);
 659        if (git_config_set_multivar(buf.buf, NULL, NULL, 1))
 660                return error(_("Could not remove config section '%s'"), buf.buf);
 661        strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old);
 662        for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 663                char *ptr;
 664
 665                strbuf_reset(&buf2);
 666                strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 667                ptr = strstr(buf2.buf, old_remote_context.buf);
 668                if (ptr) {
 669                        refspec_updated = 1;
 670                        strbuf_splice(&buf2,
 671                                      ptr-buf2.buf + strlen(":refs/remotes/"),
 672                                      strlen(rename.old), rename.new,
 673                                      strlen(rename.new));
 674                } else
 675                        warning(_("Not updating non-default fetch refspec\n"
 676                                  "\t%s\n"
 677                                  "\tPlease update the configuration manually if necessary."),
 678                                buf2.buf);
 679
 680                if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 681                        return error(_("Could not append '%s'"), buf.buf);
 682        }
 683
 684        read_branches();
 685        for (i = 0; i < branch_list.nr; i++) {
 686                struct string_list_item *item = branch_list.items + i;
 687                struct branch_info *info = item->util;
 688                if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 689                        strbuf_reset(&buf);
 690                        strbuf_addf(&buf, "branch.%s.remote", item->string);
 691                        if (git_config_set(buf.buf, rename.new)) {
 692                                return error(_("Could not set '%s'"), buf.buf);
 693                        }
 694                }
 695        }
 696
 697        if (!refspec_updated)
 698                return 0;
 699
 700        /*
 701         * First remove symrefs, then rename the rest, finally create
 702         * the new symrefs.
 703         */
 704        for_each_ref(read_remote_branches, &rename);
 705        for (i = 0; i < remote_branches.nr; i++) {
 706                struct string_list_item *item = remote_branches.items + i;
 707                int flag = 0;
 708                unsigned char sha1[20];
 709
 710                read_ref_full(item->string, sha1, 1, &flag);
 711                if (!(flag & REF_ISSYMREF))
 712                        continue;
 713                if (delete_ref(item->string, NULL, REF_NODEREF))
 714                        die(_("deleting '%s' failed"), item->string);
 715        }
 716        for (i = 0; i < remote_branches.nr; i++) {
 717                struct string_list_item *item = remote_branches.items + i;
 718
 719                if (item->util)
 720                        continue;
 721                strbuf_reset(&buf);
 722                strbuf_addstr(&buf, item->string);
 723                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 724                                rename.new, strlen(rename.new));
 725                strbuf_reset(&buf2);
 726                strbuf_addf(&buf2, "remote: renamed %s to %s",
 727                                item->string, buf.buf);
 728                if (rename_ref(item->string, buf.buf, buf2.buf))
 729                        die(_("renaming '%s' failed"), item->string);
 730        }
 731        for (i = 0; i < remote_branches.nr; i++) {
 732                struct string_list_item *item = remote_branches.items + i;
 733
 734                if (!item->util)
 735                        continue;
 736                strbuf_reset(&buf);
 737                strbuf_addstr(&buf, item->string);
 738                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 739                                rename.new, strlen(rename.new));
 740                strbuf_reset(&buf2);
 741                strbuf_addstr(&buf2, item->util);
 742                strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
 743                                rename.new, strlen(rename.new));
 744                strbuf_reset(&buf3);
 745                strbuf_addf(&buf3, "remote: renamed %s to %s",
 746                                item->string, buf.buf);
 747                if (create_symref(buf.buf, buf2.buf, buf3.buf))
 748                        die(_("creating '%s' failed"), buf.buf);
 749        }
 750        return 0;
 751}
 752
 753static int remove_branches(struct string_list *branches)
 754{
 755        int i, result = 0;
 756        for (i = 0; i < branches->nr; i++) {
 757                struct string_list_item *item = branches->items + i;
 758                const char *refname = item->string;
 759                unsigned char *sha1 = item->util;
 760
 761                if (delete_ref(refname, sha1, 0))
 762                        result |= error(_("Could not remove branch %s"), refname);
 763        }
 764        return result;
 765}
 766
 767static int rm(int argc, const char **argv)
 768{
 769        struct option options[] = {
 770                OPT_END()
 771        };
 772        struct remote *remote;
 773        struct strbuf buf = STRBUF_INIT;
 774        struct known_remotes known_remotes = { NULL, NULL };
 775        struct string_list branches = STRING_LIST_INIT_DUP;
 776        struct string_list skipped = STRING_LIST_INIT_DUP;
 777        struct branches_for_remote cb_data;
 778        int i, result;
 779
 780        memset(&cb_data, 0, sizeof(cb_data));
 781        cb_data.branches = &branches;
 782        cb_data.skipped = &skipped;
 783        cb_data.keep = &known_remotes;
 784
 785        if (argc != 2)
 786                usage_with_options(builtin_remote_rm_usage, options);
 787
 788        remote = remote_get(argv[1]);
 789        if (!remote)
 790                die(_("No such remote: %s"), argv[1]);
 791
 792        known_remotes.to_delete = remote;
 793        for_each_remote(add_known_remote, &known_remotes);
 794
 795        strbuf_addf(&buf, "remote.%s", remote->name);
 796        if (git_config_rename_section(buf.buf, NULL) < 1)
 797                return error(_("Could not remove config section '%s'"), buf.buf);
 798
 799        read_branches();
 800        for (i = 0; i < branch_list.nr; i++) {
 801                struct string_list_item *item = branch_list.items + i;
 802                struct branch_info *info = item->util;
 803                if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 804                        const char *keys[] = { "remote", "merge", NULL }, **k;
 805                        for (k = keys; *k; k++) {
 806                                strbuf_reset(&buf);
 807                                strbuf_addf(&buf, "branch.%s.%s",
 808                                                item->string, *k);
 809                                if (git_config_set(buf.buf, NULL)) {
 810                                        strbuf_release(&buf);
 811                                        return -1;
 812                                }
 813                        }
 814                }
 815        }
 816
 817        /*
 818         * We cannot just pass a function to for_each_ref() which deletes
 819         * the branches one by one, since for_each_ref() relies on cached
 820         * refs, which are invalidated when deleting a branch.
 821         */
 822        cb_data.remote = remote;
 823        result = for_each_ref(add_branch_for_removal, &cb_data);
 824        strbuf_release(&buf);
 825
 826        if (!result)
 827                result = remove_branches(&branches);
 828        string_list_clear(&branches, 1);
 829
 830        if (skipped.nr) {
 831                fprintf_ln(stderr,
 832                           Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 833                              "to delete it, use:",
 834                              "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 835                              "to delete them, use:",
 836                              skipped.nr));
 837                for (i = 0; i < skipped.nr; i++)
 838                        fprintf(stderr, "  git branch -d %s\n",
 839                                skipped.items[i].string);
 840        }
 841        string_list_clear(&skipped, 0);
 842
 843        return result;
 844}
 845
 846static void clear_push_info(void *util, const char *string)
 847{
 848        struct push_info *info = util;
 849        free(info->dest);
 850        free(info);
 851}
 852
 853static void free_remote_ref_states(struct ref_states *states)
 854{
 855        string_list_clear(&states->new, 0);
 856        string_list_clear(&states->stale, 1);
 857        string_list_clear(&states->tracked, 0);
 858        string_list_clear(&states->heads, 0);
 859        string_list_clear_func(&states->push, clear_push_info);
 860}
 861
 862static int append_ref_to_tracked_list(const char *refname,
 863        const unsigned char *sha1, int flags, void *cb_data)
 864{
 865        struct ref_states *states = cb_data;
 866        struct refspec refspec;
 867
 868        if (flags & REF_ISSYMREF)
 869                return 0;
 870
 871        memset(&refspec, 0, sizeof(refspec));
 872        refspec.dst = (char *)refname;
 873        if (!remote_find_tracking(states->remote, &refspec))
 874                string_list_append(&states->tracked, abbrev_branch(refspec.src));
 875
 876        return 0;
 877}
 878
 879static int get_remote_ref_states(const char *name,
 880                                 struct ref_states *states,
 881                                 int query)
 882{
 883        struct transport *transport;
 884        const struct ref *remote_refs;
 885
 886        states->remote = remote_get(name);
 887        if (!states->remote)
 888                return error(_("No such remote: %s"), name);
 889
 890        read_branches();
 891
 892        if (query) {
 893                transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 894                        states->remote->url[0] : NULL);
 895                remote_refs = transport_get_remote_refs(transport);
 896                transport_disconnect(transport);
 897
 898                states->queried = 1;
 899                if (query & GET_REF_STATES)
 900                        get_ref_states(remote_refs, states);
 901                if (query & GET_HEAD_NAMES)
 902                        get_head_names(remote_refs, states);
 903                if (query & GET_PUSH_REF_STATES)
 904                        get_push_ref_states(remote_refs, states);
 905        } else {
 906                for_each_ref(append_ref_to_tracked_list, states);
 907                sort_string_list(&states->tracked);
 908                get_push_ref_states_noquery(states);
 909        }
 910
 911        return 0;
 912}
 913
 914struct show_info {
 915        struct string_list *list;
 916        struct ref_states *states;
 917        int width, width2;
 918        int any_rebase;
 919};
 920
 921static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 922{
 923        struct show_info *info = cb_data;
 924        int n = strlen(item->string);
 925        if (n > info->width)
 926                info->width = n;
 927        string_list_insert(info->list, item->string);
 928        return 0;
 929}
 930
 931static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 932{
 933        struct show_info *info = cb_data;
 934        struct ref_states *states = info->states;
 935        const char *name = item->string;
 936
 937        if (states->queried) {
 938                const char *fmt = "%s";
 939                const char *arg = "";
 940                if (string_list_has_string(&states->new, name)) {
 941                        fmt = _(" new (next fetch will store in remotes/%s)");
 942                        arg = states->remote->name;
 943                } else if (string_list_has_string(&states->tracked, name))
 944                        arg = _(" tracked");
 945                else if (string_list_has_string(&states->stale, name))
 946                        arg = _(" stale (use 'git remote prune' to remove)");
 947                else
 948                        arg = _(" ???");
 949                printf("    %-*s", info->width, name);
 950                printf(fmt, arg);
 951                printf("\n");
 952        } else
 953                printf("    %s\n", name);
 954
 955        return 0;
 956}
 957
 958static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 959{
 960        struct show_info *show_info = cb_data;
 961        struct ref_states *states = show_info->states;
 962        struct branch_info *branch_info = branch_item->util;
 963        struct string_list_item *item;
 964        int n;
 965
 966        if (!branch_info->merge.nr || !branch_info->remote_name ||
 967            strcmp(states->remote->name, branch_info->remote_name))
 968                return 0;
 969        if ((n = strlen(branch_item->string)) > show_info->width)
 970                show_info->width = n;
 971        if (branch_info->rebase)
 972                show_info->any_rebase = 1;
 973
 974        item = string_list_insert(show_info->list, branch_item->string);
 975        item->util = branch_info;
 976
 977        return 0;
 978}
 979
 980static int show_local_info_item(struct string_list_item *item, void *cb_data)
 981{
 982        struct show_info *show_info = cb_data;
 983        struct branch_info *branch_info = item->util;
 984        struct string_list *merge = &branch_info->merge;
 985        const char *also;
 986        int i;
 987
 988        if (branch_info->rebase && branch_info->merge.nr > 1) {
 989                error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"),
 990                        item->string);
 991                return 0;
 992        }
 993
 994        printf("    %-*s ", show_info->width, item->string);
 995        if (branch_info->rebase) {
 996                printf_ln(_("rebases onto remote %s"), merge->items[0].string);
 997                return 0;
 998        } else if (show_info->any_rebase) {
 999                printf_ln(_(" merges with remote %s"), merge->items[0].string);
1000                also = _("    and with remote");
1001        } else {
1002                printf_ln(_("merges with remote %s"), merge->items[0].string);
1003                also = _("   and with remote");
1004        }
1005        for (i = 1; i < merge->nr; i++)
1006                printf("    %-*s %s %s\n", show_info->width, "", also,
1007                       merge->items[i].string);
1008
1009        return 0;
1010}
1011
1012static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
1013{
1014        struct show_info *show_info = cb_data;
1015        struct push_info *push_info = push_item->util;
1016        struct string_list_item *item;
1017        int n;
1018        if ((n = strlen(push_item->string)) > show_info->width)
1019                show_info->width = n;
1020        if ((n = strlen(push_info->dest)) > show_info->width2)
1021                show_info->width2 = n;
1022        item = string_list_append(show_info->list, push_item->string);
1023        item->util = push_item->util;
1024        return 0;
1025}
1026
1027/*
1028 * Sorting comparison for a string list that has push_info
1029 * structs in its util field
1030 */
1031static int cmp_string_with_push(const void *va, const void *vb)
1032{
1033        const struct string_list_item *a = va;
1034        const struct string_list_item *b = vb;
1035        const struct push_info *a_push = a->util;
1036        const struct push_info *b_push = b->util;
1037        int cmp = strcmp(a->string, b->string);
1038        return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1039}
1040
1041static int show_push_info_item(struct string_list_item *item, void *cb_data)
1042{
1043        struct show_info *show_info = cb_data;
1044        struct push_info *push_info = item->util;
1045        const char *src = item->string, *status = NULL;
1046
1047        switch (push_info->status) {
1048        case PUSH_STATUS_CREATE:
1049                status = _("create");
1050                break;
1051        case PUSH_STATUS_DELETE:
1052                status = _("delete");
1053                src = _("(none)");
1054                break;
1055        case PUSH_STATUS_UPTODATE:
1056                status = _("up to date");
1057                break;
1058        case PUSH_STATUS_FASTFORWARD:
1059                status = _("fast-forwardable");
1060                break;
1061        case PUSH_STATUS_OUTOFDATE:
1062                status = _("local out of date");
1063                break;
1064        case PUSH_STATUS_NOTQUERIED:
1065                break;
1066        }
1067        if (status) {
1068                if (push_info->forced)
1069                        printf_ln(_("    %-*s forces to %-*s (%s)"), show_info->width, src,
1070                               show_info->width2, push_info->dest, status);
1071                else
1072                        printf_ln(_("    %-*s pushes to %-*s (%s)"), show_info->width, src,
1073                               show_info->width2, push_info->dest, status);
1074        } else {
1075                if (push_info->forced)
1076                        printf_ln(_("    %-*s forces to %s"), show_info->width, src,
1077                               push_info->dest);
1078                else
1079                        printf_ln(_("    %-*s pushes to %s"), show_info->width, src,
1080                               push_info->dest);
1081        }
1082        return 0;
1083}
1084
1085static int get_one_entry(struct remote *remote, void *priv)
1086{
1087        struct string_list *list = priv;
1088        struct strbuf url_buf = STRBUF_INIT;
1089        const char **url;
1090        int i, url_nr;
1091
1092        if (remote->url_nr > 0) {
1093                strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1094                string_list_append(list, remote->name)->util =
1095                                strbuf_detach(&url_buf, NULL);
1096        } else
1097                string_list_append(list, remote->name)->util = NULL;
1098        if (remote->pushurl_nr) {
1099                url = remote->pushurl;
1100                url_nr = remote->pushurl_nr;
1101        } else {
1102                url = remote->url;
1103                url_nr = remote->url_nr;
1104        }
1105        for (i = 0; i < url_nr; i++)
1106        {
1107                strbuf_addf(&url_buf, "%s (push)", url[i]);
1108                string_list_append(list, remote->name)->util =
1109                                strbuf_detach(&url_buf, NULL);
1110        }
1111
1112        return 0;
1113}
1114
1115static int show_all(void)
1116{
1117        struct string_list list = STRING_LIST_INIT_NODUP;
1118        int result;
1119
1120        list.strdup_strings = 1;
1121        result = for_each_remote(get_one_entry, &list);
1122
1123        if (!result) {
1124                int i;
1125
1126                sort_string_list(&list);
1127                for (i = 0; i < list.nr; i++) {
1128                        struct string_list_item *item = list.items + i;
1129                        if (verbose)
1130                                printf("%s\t%s\n", item->string,
1131                                        item->util ? (const char *)item->util : "");
1132                        else {
1133                                if (i && !strcmp((item - 1)->string, item->string))
1134                                        continue;
1135                                printf("%s\n", item->string);
1136                        }
1137                }
1138        }
1139        string_list_clear(&list, 1);
1140        return result;
1141}
1142
1143static int show(int argc, const char **argv)
1144{
1145        int no_query = 0, result = 0, query_flag = 0;
1146        struct option options[] = {
1147                OPT_BOOL('n', NULL, &no_query, N_("do not query remotes")),
1148                OPT_END()
1149        };
1150        struct ref_states states;
1151        struct string_list info_list = STRING_LIST_INIT_NODUP;
1152        struct show_info info;
1153
1154        argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1155                             0);
1156
1157        if (argc < 1)
1158                return show_all();
1159
1160        if (!no_query)
1161                query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1162
1163        memset(&states, 0, sizeof(states));
1164        memset(&info, 0, sizeof(info));
1165        info.states = &states;
1166        info.list = &info_list;
1167        for (; argc; argc--, argv++) {
1168                int i;
1169                const char **url;
1170                int url_nr;
1171
1172                get_remote_ref_states(*argv, &states, query_flag);
1173
1174                printf_ln(_("* remote %s"), *argv);
1175                printf_ln(_("  Fetch URL: %s"), states.remote->url_nr > 0 ?
1176                       states.remote->url[0] : _("(no URL)"));
1177                if (states.remote->pushurl_nr) {
1178                        url = states.remote->pushurl;
1179                        url_nr = states.remote->pushurl_nr;
1180                } else {
1181                        url = states.remote->url;
1182                        url_nr = states.remote->url_nr;
1183                }
1184                for (i = 0; i < url_nr; i++)
1185                        printf_ln(_("  Push  URL: %s"), url[i]);
1186                if (!i)
1187                        printf_ln(_("  Push  URL: %s"), "(no URL)");
1188                if (no_query)
1189                        printf_ln(_("  HEAD branch: %s"), "(not queried)");
1190                else if (!states.heads.nr)
1191                        printf_ln(_("  HEAD branch: %s"), "(unknown)");
1192                else if (states.heads.nr == 1)
1193                        printf_ln(_("  HEAD branch: %s"), states.heads.items[0].string);
1194                else {
1195                        printf(_("  HEAD branch (remote HEAD is ambiguous,"
1196                                 " may be one of the following):\n"));
1197                        for (i = 0; i < states.heads.nr; i++)
1198                                printf("    %s\n", states.heads.items[i].string);
1199                }
1200
1201                /* remote branch info */
1202                info.width = 0;
1203                for_each_string_list(&states.new, add_remote_to_show_info, &info);
1204                for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1205                for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1206                if (info.list->nr)
1207                        printf_ln(Q_("  Remote branch:%s",
1208                                     "  Remote branches:%s",
1209                                     info.list->nr),
1210                                  no_query ? _(" (status not queried)") : "");
1211                for_each_string_list(info.list, show_remote_info_item, &info);
1212                string_list_clear(info.list, 0);
1213
1214                /* git pull info */
1215                info.width = 0;
1216                info.any_rebase = 0;
1217                for_each_string_list(&branch_list, add_local_to_show_info, &info);
1218                if (info.list->nr)
1219                        printf_ln(Q_("  Local branch configured for 'git pull':",
1220                                     "  Local branches configured for 'git pull':",
1221                                     info.list->nr));
1222                for_each_string_list(info.list, show_local_info_item, &info);
1223                string_list_clear(info.list, 0);
1224
1225                /* git push info */
1226                if (states.remote->mirror)
1227                        printf_ln(_("  Local refs will be mirrored by 'git push'"));
1228
1229                info.width = info.width2 = 0;
1230                for_each_string_list(&states.push, add_push_to_show_info, &info);
1231                qsort(info.list->items, info.list->nr,
1232                        sizeof(*info.list->items), cmp_string_with_push);
1233                if (info.list->nr)
1234                        printf_ln(Q_("  Local ref configured for 'git push'%s:",
1235                                     "  Local refs configured for 'git push'%s:",
1236                                     info.list->nr),
1237                                  no_query ? _(" (status not queried)") : "");
1238                for_each_string_list(info.list, show_push_info_item, &info);
1239                string_list_clear(info.list, 0);
1240
1241                free_remote_ref_states(&states);
1242        }
1243
1244        return result;
1245}
1246
1247static int set_head(int argc, const char **argv)
1248{
1249        int i, opt_a = 0, opt_d = 0, result = 0;
1250        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1251        char *head_name = NULL;
1252
1253        struct option options[] = {
1254                OPT_BOOL('a', "auto", &opt_a,
1255                         N_("set refs/remotes/<name>/HEAD according to remote")),
1256                OPT_BOOL('d', "delete", &opt_d,
1257                         N_("delete refs/remotes/<name>/HEAD")),
1258                OPT_END()
1259        };
1260        argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1261                             0);
1262        if (argc)
1263                strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1264
1265        if (!opt_a && !opt_d && argc == 2) {
1266                head_name = xstrdup(argv[1]);
1267        } else if (opt_a && !opt_d && argc == 1) {
1268                struct ref_states states;
1269                memset(&states, 0, sizeof(states));
1270                get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1271                if (!states.heads.nr)
1272                        result |= error(_("Cannot determine remote HEAD"));
1273                else if (states.heads.nr > 1) {
1274                        result |= error(_("Multiple remote HEAD branches. "
1275                                          "Please choose one explicitly with:"));
1276                        for (i = 0; i < states.heads.nr; i++)
1277                                fprintf(stderr, "  git remote set-head %s %s\n",
1278                                        argv[0], states.heads.items[i].string);
1279                } else
1280                        head_name = xstrdup(states.heads.items[0].string);
1281                free_remote_ref_states(&states);
1282        } else if (opt_d && !opt_a && argc == 1) {
1283                if (delete_ref(buf.buf, NULL, REF_NODEREF))
1284                        result |= error(_("Could not delete %s"), buf.buf);
1285        } else
1286                usage_with_options(builtin_remote_sethead_usage, options);
1287
1288        if (head_name) {
1289                strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1290                /* make sure it's valid */
1291                if (!ref_exists(buf2.buf))
1292                        result |= error(_("Not a valid ref: %s"), buf2.buf);
1293                else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1294                        result |= error(_("Could not setup %s"), buf.buf);
1295                if (opt_a)
1296                        printf("%s/HEAD set to %s\n", argv[0], head_name);
1297                free(head_name);
1298        }
1299
1300        strbuf_release(&buf);
1301        strbuf_release(&buf2);
1302        return result;
1303}
1304
1305static int prune_remote(const char *remote, int dry_run)
1306{
1307        int result = 0, i;
1308        struct ref_states states;
1309        const char *dangling_msg = dry_run
1310                ? _(" %s will become dangling!")
1311                : _(" %s has become dangling!");
1312
1313        memset(&states, 0, sizeof(states));
1314        get_remote_ref_states(remote, &states, GET_REF_STATES);
1315
1316        if (states.stale.nr) {
1317                printf_ln(_("Pruning %s"), remote);
1318                printf_ln(_("URL: %s"),
1319                       states.remote->url_nr
1320                       ? states.remote->url[0]
1321                       : _("(no URL)"));
1322        }
1323
1324        for (i = 0; i < states.stale.nr; i++) {
1325                const char *refname = states.stale.items[i].util;
1326
1327                if (!dry_run)
1328                        result |= delete_ref(refname, NULL, 0);
1329
1330                if (dry_run)
1331                        printf_ln(_(" * [would prune] %s"),
1332                               abbrev_ref(refname, "refs/remotes/"));
1333                else
1334                        printf_ln(_(" * [pruned] %s"),
1335                               abbrev_ref(refname, "refs/remotes/"));
1336                warn_dangling_symref(stdout, dangling_msg, refname);
1337        }
1338
1339        free_remote_ref_states(&states);
1340        return result;
1341}
1342
1343static int prune(int argc, const char **argv)
1344{
1345        int dry_run = 0, result = 0;
1346        struct option options[] = {
1347                OPT__DRY_RUN(&dry_run, N_("dry run")),
1348                OPT_END()
1349        };
1350
1351        argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1352                             0);
1353
1354        if (argc < 1)
1355                usage_with_options(builtin_remote_prune_usage, options);
1356
1357        for (; argc; argc--, argv++)
1358                result |= prune_remote(*argv, dry_run);
1359
1360        return result;
1361}
1362
1363static int get_remote_default(const char *key, const char *value, void *priv)
1364{
1365        if (strcmp(key, "remotes.default") == 0) {
1366                int *found = priv;
1367                *found = 1;
1368        }
1369        return 0;
1370}
1371
1372static int update(int argc, const char **argv)
1373{
1374        int i, prune = 0;
1375        struct option options[] = {
1376                OPT_BOOL('p', "prune", &prune,
1377                         N_("prune remotes after fetching")),
1378                OPT_END()
1379        };
1380        struct argv_array fetch_argv = ARGV_ARRAY_INIT;
1381        int default_defined = 0;
1382        int retval;
1383
1384        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1385                             PARSE_OPT_KEEP_ARGV0);
1386
1387        argv_array_push(&fetch_argv, "fetch");
1388
1389        if (prune)
1390                argv_array_push(&fetch_argv, "--prune");
1391        if (verbose)
1392                argv_array_push(&fetch_argv, "-v");
1393        argv_array_push(&fetch_argv, "--multiple");
1394        if (argc < 2)
1395                argv_array_push(&fetch_argv, "default");
1396        for (i = 1; i < argc; i++)
1397                argv_array_push(&fetch_argv, argv[i]);
1398
1399        if (strcmp(fetch_argv.argv[fetch_argv.argc-1], "default") == 0) {
1400                git_config(get_remote_default, &default_defined);
1401                if (!default_defined) {
1402                        argv_array_pop(&fetch_argv);
1403                        argv_array_push(&fetch_argv, "--all");
1404                }
1405        }
1406
1407        retval = run_command_v_opt(fetch_argv.argv, RUN_GIT_CMD);
1408        argv_array_clear(&fetch_argv);
1409        return retval;
1410}
1411
1412static int remove_all_fetch_refspecs(const char *remote, const char *key)
1413{
1414        return git_config_set_multivar(key, NULL, NULL, 1);
1415}
1416
1417static int add_branches(struct remote *remote, const char **branches,
1418                        const char *key)
1419{
1420        const char *remotename = remote->name;
1421        int mirror = remote->mirror;
1422        struct strbuf refspec = STRBUF_INIT;
1423
1424        for (; *branches; branches++)
1425                if (add_branch(key, *branches, remotename, mirror, &refspec)) {
1426                        strbuf_release(&refspec);
1427                        return 1;
1428                }
1429
1430        strbuf_release(&refspec);
1431        return 0;
1432}
1433
1434static int set_remote_branches(const char *remotename, const char **branches,
1435                                int add_mode)
1436{
1437        struct strbuf key = STRBUF_INIT;
1438        struct remote *remote;
1439
1440        strbuf_addf(&key, "remote.%s.fetch", remotename);
1441
1442        if (!remote_is_configured(remotename))
1443                die(_("No such remote '%s'"), remotename);
1444        remote = remote_get(remotename);
1445
1446        if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
1447                strbuf_release(&key);
1448                return 1;
1449        }
1450        if (add_branches(remote, branches, key.buf)) {
1451                strbuf_release(&key);
1452                return 1;
1453        }
1454
1455        strbuf_release(&key);
1456        return 0;
1457}
1458
1459static int set_branches(int argc, const char **argv)
1460{
1461        int add_mode = 0;
1462        struct option options[] = {
1463                OPT_BOOL('\0', "add", &add_mode, N_("add branch")),
1464                OPT_END()
1465        };
1466
1467        argc = parse_options(argc, argv, NULL, options,
1468                             builtin_remote_setbranches_usage, 0);
1469        if (argc == 0) {
1470                error(_("no remote specified"));
1471                usage_with_options(builtin_remote_setbranches_usage, options);
1472        }
1473        argv[argc] = NULL;
1474
1475        return set_remote_branches(argv[0], argv + 1, add_mode);
1476}
1477
1478static int set_url(int argc, const char **argv)
1479{
1480        int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1481        int matches = 0, negative_matches = 0;
1482        const char *remotename = NULL;
1483        const char *newurl = NULL;
1484        const char *oldurl = NULL;
1485        struct remote *remote;
1486        regex_t old_regex;
1487        const char **urlset;
1488        int urlset_nr;
1489        struct strbuf name_buf = STRBUF_INIT;
1490        struct option options[] = {
1491                OPT_BOOL('\0', "push", &push_mode,
1492                         N_("manipulate push URLs")),
1493                OPT_BOOL('\0', "add", &add_mode,
1494                         N_("add URL")),
1495                OPT_BOOL('\0', "delete", &delete_mode,
1496                            N_("delete URLs")),
1497                OPT_END()
1498        };
1499        argc = parse_options(argc, argv, NULL, options, builtin_remote_seturl_usage,
1500                             PARSE_OPT_KEEP_ARGV0);
1501
1502        if (add_mode && delete_mode)
1503                die(_("--add --delete doesn't make sense"));
1504
1505        if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1506                usage_with_options(builtin_remote_seturl_usage, options);
1507
1508        remotename = argv[1];
1509        newurl = argv[2];
1510        if (argc > 3)
1511                oldurl = argv[3];
1512
1513        if (delete_mode)
1514                oldurl = newurl;
1515
1516        if (!remote_is_configured(remotename))
1517                die(_("No such remote '%s'"), remotename);
1518        remote = remote_get(remotename);
1519
1520        if (push_mode) {
1521                strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1522                urlset = remote->pushurl;
1523                urlset_nr = remote->pushurl_nr;
1524        } else {
1525                strbuf_addf(&name_buf, "remote.%s.url", remotename);
1526                urlset = remote->url;
1527                urlset_nr = remote->url_nr;
1528        }
1529
1530        /* Special cases that add new entry. */
1531        if ((!oldurl && !delete_mode) || add_mode) {
1532                if (add_mode)
1533                        git_config_set_multivar(name_buf.buf, newurl,
1534                                "^$", 0);
1535                else
1536                        git_config_set(name_buf.buf, newurl);
1537                strbuf_release(&name_buf);
1538                return 0;
1539        }
1540
1541        /* Old URL specified. Demand that one matches. */
1542        if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1543                die(_("Invalid old URL pattern: %s"), oldurl);
1544
1545        for (i = 0; i < urlset_nr; i++)
1546                if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1547                        matches++;
1548                else
1549                        negative_matches++;
1550        if (!delete_mode && !matches)
1551                die(_("No such URL found: %s"), oldurl);
1552        if (delete_mode && !negative_matches && !push_mode)
1553                die(_("Will not delete all non-push URLs"));
1554
1555        regfree(&old_regex);
1556
1557        if (!delete_mode)
1558                git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1559        else
1560                git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1561        return 0;
1562}
1563
1564int cmd_remote(int argc, const char **argv, const char *prefix)
1565{
1566        struct option options[] = {
1567                OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")),
1568                OPT_END()
1569        };
1570        int result;
1571
1572        argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1573                PARSE_OPT_STOP_AT_NON_OPTION);
1574
1575        if (argc < 1)
1576                result = show_all();
1577        else if (!strcmp(argv[0], "add"))
1578                result = add(argc, argv);
1579        else if (!strcmp(argv[0], "rename"))
1580                result = mv(argc, argv);
1581        else if (!strcmp(argv[0], "rm") || !strcmp(argv[0], "remove"))
1582                result = rm(argc, argv);
1583        else if (!strcmp(argv[0], "set-head"))
1584                result = set_head(argc, argv);
1585        else if (!strcmp(argv[0], "set-branches"))
1586                result = set_branches(argc, argv);
1587        else if (!strcmp(argv[0], "set-url"))
1588                result = set_url(argc, argv);
1589        else if (!strcmp(argv[0], "show"))
1590                result = show(argc, argv);
1591        else if (!strcmp(argv[0], "prune"))
1592                result = prune(argc, argv);
1593        else if (!strcmp(argv[0], "update"))
1594                result = update(argc, argv);
1595        else {
1596                error(_("Unknown subcommand: %s"), argv[0]);
1597                usage_with_options(builtin_remote_usage, options);
1598        }
1599
1600        return result ? 1 : 0;
1601}