builtin / remote.con commit gc: config option for running --auto in background (9f673f9)
   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        const char *abbrev = skip_prefix(name, prefix);
 254        if (abbrev)
 255                return abbrev;
 256        return name;
 257}
 258#define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 259
 260static int config_read_branches(const char *key, const char *value, void *cb)
 261{
 262        if (starts_with(key, "branch.")) {
 263                const char *orig_key = key;
 264                char *name;
 265                struct string_list_item *item;
 266                struct branch_info *info;
 267                enum { REMOTE, MERGE, REBASE } type;
 268
 269                key += 7;
 270                if (ends_with(key, ".remote")) {
 271                        name = xstrndup(key, strlen(key) - 7);
 272                        type = REMOTE;
 273                } else if (ends_with(key, ".merge")) {
 274                        name = xstrndup(key, strlen(key) - 6);
 275                        type = MERGE;
 276                } else if (ends_with(key, ".rebase")) {
 277                        name = xstrndup(key, strlen(key) - 7);
 278                        type = REBASE;
 279                } else
 280                        return 0;
 281
 282                item = string_list_insert(&branch_list, name);
 283
 284                if (!item->util)
 285                        item->util = xcalloc(sizeof(struct branch_info), 1);
 286                info = item->util;
 287                if (type == REMOTE) {
 288                        if (info->remote_name)
 289                                warning(_("more than one %s"), orig_key);
 290                        info->remote_name = xstrdup(value);
 291                } else if (type == MERGE) {
 292                        char *space = strchr(value, ' ');
 293                        value = abbrev_branch(value);
 294                        while (space) {
 295                                char *merge;
 296                                merge = xstrndup(value, space - value);
 297                                string_list_append(&info->merge, merge);
 298                                value = abbrev_branch(space + 1);
 299                                space = strchr(value, ' ');
 300                        }
 301                        string_list_append(&info->merge, xstrdup(value));
 302                } else {
 303                        int v = git_config_maybe_bool(orig_key, value);
 304                        if (v >= 0)
 305                                info->rebase = v;
 306                        else if (!strcmp(value, "preserve"))
 307                                info->rebase = 1;
 308                }
 309        }
 310        return 0;
 311}
 312
 313static void read_branches(void)
 314{
 315        if (branch_list.nr)
 316                return;
 317        git_config(config_read_branches, NULL);
 318}
 319
 320struct ref_states {
 321        struct remote *remote;
 322        struct string_list new, stale, tracked, heads, push;
 323        int queried;
 324};
 325
 326static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 327{
 328        struct ref *fetch_map = NULL, **tail = &fetch_map;
 329        struct ref *ref, *stale_refs;
 330        int i;
 331
 332        for (i = 0; i < states->remote->fetch_refspec_nr; i++)
 333                if (get_fetch_map(remote_refs, states->remote->fetch + i, &tail, 1))
 334                        die(_("Could not get fetch map for refspec %s"),
 335                                states->remote->fetch_refspec[i]);
 336
 337        states->new.strdup_strings = 1;
 338        states->tracked.strdup_strings = 1;
 339        states->stale.strdup_strings = 1;
 340        for (ref = fetch_map; ref; ref = ref->next) {
 341                if (!ref->peer_ref || !ref_exists(ref->peer_ref->name))
 342                        string_list_append(&states->new, abbrev_branch(ref->name));
 343                else
 344                        string_list_append(&states->tracked, abbrev_branch(ref->name));
 345        }
 346        stale_refs = get_stale_heads(states->remote->fetch,
 347                                     states->remote->fetch_refspec_nr, fetch_map);
 348        for (ref = stale_refs; ref; ref = ref->next) {
 349                struct string_list_item *item =
 350                        string_list_append(&states->stale, abbrev_branch(ref->name));
 351                item->util = xstrdup(ref->name);
 352        }
 353        free_refs(stale_refs);
 354        free_refs(fetch_map);
 355
 356        sort_string_list(&states->new);
 357        sort_string_list(&states->tracked);
 358        sort_string_list(&states->stale);
 359
 360        return 0;
 361}
 362
 363struct push_info {
 364        char *dest;
 365        int forced;
 366        enum {
 367                PUSH_STATUS_CREATE = 0,
 368                PUSH_STATUS_DELETE,
 369                PUSH_STATUS_UPTODATE,
 370                PUSH_STATUS_FASTFORWARD,
 371                PUSH_STATUS_OUTOFDATE,
 372                PUSH_STATUS_NOTQUERIED
 373        } status;
 374};
 375
 376static int get_push_ref_states(const struct ref *remote_refs,
 377        struct ref_states *states)
 378{
 379        struct remote *remote = states->remote;
 380        struct ref *ref, *local_refs, *push_map;
 381        if (remote->mirror)
 382                return 0;
 383
 384        local_refs = get_local_heads();
 385        push_map = copy_ref_list(remote_refs);
 386
 387        match_push_refs(local_refs, &push_map, remote->push_refspec_nr,
 388                        remote->push_refspec, MATCH_REFS_NONE);
 389
 390        states->push.strdup_strings = 1;
 391        for (ref = push_map; ref; ref = ref->next) {
 392                struct string_list_item *item;
 393                struct push_info *info;
 394
 395                if (!ref->peer_ref)
 396                        continue;
 397                hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
 398
 399                item = string_list_append(&states->push,
 400                                          abbrev_branch(ref->peer_ref->name));
 401                item->util = xcalloc(sizeof(struct push_info), 1);
 402                info = item->util;
 403                info->forced = ref->force;
 404                info->dest = xstrdup(abbrev_branch(ref->name));
 405
 406                if (is_null_sha1(ref->new_sha1)) {
 407                        info->status = PUSH_STATUS_DELETE;
 408                } else if (!hashcmp(ref->old_sha1, ref->new_sha1))
 409                        info->status = PUSH_STATUS_UPTODATE;
 410                else if (is_null_sha1(ref->old_sha1))
 411                        info->status = PUSH_STATUS_CREATE;
 412                else if (has_sha1_file(ref->old_sha1) &&
 413                         ref_newer(ref->new_sha1, ref->old_sha1))
 414                        info->status = PUSH_STATUS_FASTFORWARD;
 415                else
 416                        info->status = PUSH_STATUS_OUTOFDATE;
 417        }
 418        free_refs(local_refs);
 419        free_refs(push_map);
 420        return 0;
 421}
 422
 423static int get_push_ref_states_noquery(struct ref_states *states)
 424{
 425        int i;
 426        struct remote *remote = states->remote;
 427        struct string_list_item *item;
 428        struct push_info *info;
 429
 430        if (remote->mirror)
 431                return 0;
 432
 433        states->push.strdup_strings = 1;
 434        if (!remote->push_refspec_nr) {
 435                item = string_list_append(&states->push, _("(matching)"));
 436                info = item->util = xcalloc(sizeof(struct push_info), 1);
 437                info->status = PUSH_STATUS_NOTQUERIED;
 438                info->dest = xstrdup(item->string);
 439        }
 440        for (i = 0; i < remote->push_refspec_nr; i++) {
 441                struct refspec *spec = remote->push + i;
 442                if (spec->matching)
 443                        item = string_list_append(&states->push, _("(matching)"));
 444                else if (strlen(spec->src))
 445                        item = string_list_append(&states->push, spec->src);
 446                else
 447                        item = string_list_append(&states->push, _("(delete)"));
 448
 449                info = item->util = xcalloc(sizeof(struct push_info), 1);
 450                info->forced = spec->force;
 451                info->status = PUSH_STATUS_NOTQUERIED;
 452                info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 453        }
 454        return 0;
 455}
 456
 457static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 458{
 459        struct ref *ref, *matches;
 460        struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 461        struct refspec refspec;
 462
 463        refspec.force = 0;
 464        refspec.pattern = 1;
 465        refspec.src = refspec.dst = "refs/heads/*";
 466        states->heads.strdup_strings = 1;
 467        get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 468        matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 469                                    fetch_map, 1);
 470        for (ref = matches; ref; ref = ref->next)
 471                string_list_append(&states->heads, abbrev_branch(ref->name));
 472
 473        free_refs(fetch_map);
 474        free_refs(matches);
 475
 476        return 0;
 477}
 478
 479struct known_remote {
 480        struct known_remote *next;
 481        struct remote *remote;
 482};
 483
 484struct known_remotes {
 485        struct remote *to_delete;
 486        struct known_remote *list;
 487};
 488
 489static int add_known_remote(struct remote *remote, void *cb_data)
 490{
 491        struct known_remotes *all = cb_data;
 492        struct known_remote *r;
 493
 494        if (!strcmp(all->to_delete->name, remote->name))
 495                return 0;
 496
 497        r = xmalloc(sizeof(*r));
 498        r->remote = remote;
 499        r->next = all->list;
 500        all->list = r;
 501        return 0;
 502}
 503
 504struct branches_for_remote {
 505        struct remote *remote;
 506        struct string_list *branches, *skipped;
 507        struct known_remotes *keep;
 508};
 509
 510static int add_branch_for_removal(const char *refname,
 511        const unsigned char *sha1, int flags, void *cb_data)
 512{
 513        struct branches_for_remote *branches = cb_data;
 514        struct refspec refspec;
 515        struct string_list_item *item;
 516        struct known_remote *kr;
 517
 518        memset(&refspec, 0, sizeof(refspec));
 519        refspec.dst = (char *)refname;
 520        if (remote_find_tracking(branches->remote, &refspec))
 521                return 0;
 522
 523        /* don't delete a branch if another remote also uses it */
 524        for (kr = branches->keep->list; kr; kr = kr->next) {
 525                memset(&refspec, 0, sizeof(refspec));
 526                refspec.dst = (char *)refname;
 527                if (!remote_find_tracking(kr->remote, &refspec))
 528                        return 0;
 529        }
 530
 531        /* don't delete non-remote-tracking refs */
 532        if (!starts_with(refname, "refs/remotes/")) {
 533                /* advise user how to delete local branches */
 534                if (starts_with(refname, "refs/heads/"))
 535                        string_list_append(branches->skipped,
 536                                           abbrev_branch(refname));
 537                /* silently skip over other non-remote refs */
 538                return 0;
 539        }
 540
 541        /* make sure that symrefs are deleted */
 542        if (flags & REF_ISSYMREF)
 543                return unlink(git_path("%s", refname));
 544
 545        item = string_list_append(branches->branches, refname);
 546        item->util = xmalloc(20);
 547        hashcpy(item->util, sha1);
 548
 549        return 0;
 550}
 551
 552struct rename_info {
 553        const char *old;
 554        const char *new;
 555        struct string_list *remote_branches;
 556};
 557
 558static int read_remote_branches(const char *refname,
 559        const unsigned char *sha1, int flags, void *cb_data)
 560{
 561        struct rename_info *rename = cb_data;
 562        struct strbuf buf = STRBUF_INIT;
 563        struct string_list_item *item;
 564        int flag;
 565        unsigned char orig_sha1[20];
 566        const char *symref;
 567
 568        strbuf_addf(&buf, "refs/remotes/%s/", rename->old);
 569        if (starts_with(refname, buf.buf)) {
 570                item = string_list_append(rename->remote_branches, xstrdup(refname));
 571                symref = resolve_ref_unsafe(refname, orig_sha1, 1, &flag);
 572                if (flag & REF_ISSYMREF)
 573                        item->util = xstrdup(symref);
 574                else
 575                        item->util = NULL;
 576        }
 577
 578        return 0;
 579}
 580
 581static int migrate_file(struct remote *remote)
 582{
 583        struct strbuf buf = STRBUF_INIT;
 584        int i;
 585        char *path = NULL;
 586
 587        strbuf_addf(&buf, "remote.%s.url", remote->name);
 588        for (i = 0; i < remote->url_nr; i++)
 589                if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0))
 590                        return error(_("Could not append '%s' to '%s'"),
 591                                        remote->url[i], buf.buf);
 592        strbuf_reset(&buf);
 593        strbuf_addf(&buf, "remote.%s.push", remote->name);
 594        for (i = 0; i < remote->push_refspec_nr; i++)
 595                if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0))
 596                        return error(_("Could not append '%s' to '%s'"),
 597                                        remote->push_refspec[i], buf.buf);
 598        strbuf_reset(&buf);
 599        strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 600        for (i = 0; i < remote->fetch_refspec_nr; i++)
 601                if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0))
 602                        return error(_("Could not append '%s' to '%s'"),
 603                                        remote->fetch_refspec[i], buf.buf);
 604        if (remote->origin == REMOTE_REMOTES)
 605                path = git_path("remotes/%s", remote->name);
 606        else if (remote->origin == REMOTE_BRANCHES)
 607                path = git_path("branches/%s", remote->name);
 608        if (path)
 609                unlink_or_warn(path);
 610        return 0;
 611}
 612
 613static int mv(int argc, const char **argv)
 614{
 615        struct option options[] = {
 616                OPT_END()
 617        };
 618        struct remote *oldremote, *newremote;
 619        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT,
 620                old_remote_context = STRBUF_INIT;
 621        struct string_list remote_branches = STRING_LIST_INIT_NODUP;
 622        struct rename_info rename;
 623        int i, refspec_updated = 0;
 624
 625        if (argc != 3)
 626                usage_with_options(builtin_remote_rename_usage, options);
 627
 628        rename.old = argv[1];
 629        rename.new = argv[2];
 630        rename.remote_branches = &remote_branches;
 631
 632        oldremote = remote_get(rename.old);
 633        if (!oldremote)
 634                die(_("No such remote: %s"), rename.old);
 635
 636        if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
 637                return migrate_file(oldremote);
 638
 639        newremote = remote_get(rename.new);
 640        if (newremote && (newremote->url_nr > 1 || newremote->fetch_refspec_nr))
 641                die(_("remote %s already exists."), rename.new);
 642
 643        strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
 644        if (!valid_fetch_refspec(buf.buf))
 645                die(_("'%s' is not a valid remote name"), rename.new);
 646
 647        strbuf_reset(&buf);
 648        strbuf_addf(&buf, "remote.%s", rename.old);
 649        strbuf_addf(&buf2, "remote.%s", rename.new);
 650        if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 651                return error(_("Could not rename config section '%s' to '%s'"),
 652                                buf.buf, buf2.buf);
 653
 654        strbuf_reset(&buf);
 655        strbuf_addf(&buf, "remote.%s.fetch", rename.new);
 656        if (git_config_set_multivar(buf.buf, NULL, NULL, 1))
 657                return error(_("Could not remove config section '%s'"), buf.buf);
 658        strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old);
 659        for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 660                char *ptr;
 661
 662                strbuf_reset(&buf2);
 663                strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 664                ptr = strstr(buf2.buf, old_remote_context.buf);
 665                if (ptr) {
 666                        refspec_updated = 1;
 667                        strbuf_splice(&buf2,
 668                                      ptr-buf2.buf + strlen(":refs/remotes/"),
 669                                      strlen(rename.old), rename.new,
 670                                      strlen(rename.new));
 671                } else
 672                        warning(_("Not updating non-default fetch refspec\n"
 673                                  "\t%s\n"
 674                                  "\tPlease update the configuration manually if necessary."),
 675                                buf2.buf);
 676
 677                if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 678                        return error(_("Could not append '%s'"), buf.buf);
 679        }
 680
 681        read_branches();
 682        for (i = 0; i < branch_list.nr; i++) {
 683                struct string_list_item *item = branch_list.items + i;
 684                struct branch_info *info = item->util;
 685                if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 686                        strbuf_reset(&buf);
 687                        strbuf_addf(&buf, "branch.%s.remote", item->string);
 688                        if (git_config_set(buf.buf, rename.new)) {
 689                                return error(_("Could not set '%s'"), buf.buf);
 690                        }
 691                }
 692        }
 693
 694        if (!refspec_updated)
 695                return 0;
 696
 697        /*
 698         * First remove symrefs, then rename the rest, finally create
 699         * the new symrefs.
 700         */
 701        for_each_ref(read_remote_branches, &rename);
 702        for (i = 0; i < remote_branches.nr; i++) {
 703                struct string_list_item *item = remote_branches.items + i;
 704                int flag = 0;
 705                unsigned char sha1[20];
 706
 707                read_ref_full(item->string, sha1, 1, &flag);
 708                if (!(flag & REF_ISSYMREF))
 709                        continue;
 710                if (delete_ref(item->string, NULL, REF_NODEREF))
 711                        die(_("deleting '%s' failed"), item->string);
 712        }
 713        for (i = 0; i < remote_branches.nr; i++) {
 714                struct string_list_item *item = remote_branches.items + i;
 715
 716                if (item->util)
 717                        continue;
 718                strbuf_reset(&buf);
 719                strbuf_addstr(&buf, item->string);
 720                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 721                                rename.new, strlen(rename.new));
 722                strbuf_reset(&buf2);
 723                strbuf_addf(&buf2, "remote: renamed %s to %s",
 724                                item->string, buf.buf);
 725                if (rename_ref(item->string, buf.buf, buf2.buf))
 726                        die(_("renaming '%s' failed"), item->string);
 727        }
 728        for (i = 0; i < remote_branches.nr; i++) {
 729                struct string_list_item *item = remote_branches.items + i;
 730
 731                if (!item->util)
 732                        continue;
 733                strbuf_reset(&buf);
 734                strbuf_addstr(&buf, item->string);
 735                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 736                                rename.new, strlen(rename.new));
 737                strbuf_reset(&buf2);
 738                strbuf_addstr(&buf2, item->util);
 739                strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
 740                                rename.new, strlen(rename.new));
 741                strbuf_reset(&buf3);
 742                strbuf_addf(&buf3, "remote: renamed %s to %s",
 743                                item->string, buf.buf);
 744                if (create_symref(buf.buf, buf2.buf, buf3.buf))
 745                        die(_("creating '%s' failed"), buf.buf);
 746        }
 747        return 0;
 748}
 749
 750static int remove_branches(struct string_list *branches)
 751{
 752        int i, result = 0;
 753        for (i = 0; i < branches->nr; i++) {
 754                struct string_list_item *item = branches->items + i;
 755                const char *refname = item->string;
 756                unsigned char *sha1 = item->util;
 757
 758                if (delete_ref(refname, sha1, 0))
 759                        result |= error(_("Could not remove branch %s"), refname);
 760        }
 761        return result;
 762}
 763
 764static int rm(int argc, const char **argv)
 765{
 766        struct option options[] = {
 767                OPT_END()
 768        };
 769        struct remote *remote;
 770        struct strbuf buf = STRBUF_INIT;
 771        struct known_remotes known_remotes = { NULL, NULL };
 772        struct string_list branches = STRING_LIST_INIT_DUP;
 773        struct string_list skipped = STRING_LIST_INIT_DUP;
 774        struct branches_for_remote cb_data;
 775        int i, result;
 776
 777        memset(&cb_data, 0, sizeof(cb_data));
 778        cb_data.branches = &branches;
 779        cb_data.skipped = &skipped;
 780        cb_data.keep = &known_remotes;
 781
 782        if (argc != 2)
 783                usage_with_options(builtin_remote_rm_usage, options);
 784
 785        remote = remote_get(argv[1]);
 786        if (!remote)
 787                die(_("No such remote: %s"), argv[1]);
 788
 789        known_remotes.to_delete = remote;
 790        for_each_remote(add_known_remote, &known_remotes);
 791
 792        strbuf_addf(&buf, "remote.%s", remote->name);
 793        if (git_config_rename_section(buf.buf, NULL) < 1)
 794                return error(_("Could not remove config section '%s'"), buf.buf);
 795
 796        read_branches();
 797        for (i = 0; i < branch_list.nr; i++) {
 798                struct string_list_item *item = branch_list.items + i;
 799                struct branch_info *info = item->util;
 800                if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 801                        const char *keys[] = { "remote", "merge", NULL }, **k;
 802                        for (k = keys; *k; k++) {
 803                                strbuf_reset(&buf);
 804                                strbuf_addf(&buf, "branch.%s.%s",
 805                                                item->string, *k);
 806                                if (git_config_set(buf.buf, NULL)) {
 807                                        strbuf_release(&buf);
 808                                        return -1;
 809                                }
 810                        }
 811                }
 812        }
 813
 814        /*
 815         * We cannot just pass a function to for_each_ref() which deletes
 816         * the branches one by one, since for_each_ref() relies on cached
 817         * refs, which are invalidated when deleting a branch.
 818         */
 819        cb_data.remote = remote;
 820        result = for_each_ref(add_branch_for_removal, &cb_data);
 821        strbuf_release(&buf);
 822
 823        if (!result)
 824                result = remove_branches(&branches);
 825        string_list_clear(&branches, 1);
 826
 827        if (skipped.nr) {
 828                fprintf_ln(stderr,
 829                           Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 830                              "to delete it, use:",
 831                              "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 832                              "to delete them, use:",
 833                              skipped.nr));
 834                for (i = 0; i < skipped.nr; i++)
 835                        fprintf(stderr, "  git branch -d %s\n",
 836                                skipped.items[i].string);
 837        }
 838        string_list_clear(&skipped, 0);
 839
 840        return result;
 841}
 842
 843static void clear_push_info(void *util, const char *string)
 844{
 845        struct push_info *info = util;
 846        free(info->dest);
 847        free(info);
 848}
 849
 850static void free_remote_ref_states(struct ref_states *states)
 851{
 852        string_list_clear(&states->new, 0);
 853        string_list_clear(&states->stale, 1);
 854        string_list_clear(&states->tracked, 0);
 855        string_list_clear(&states->heads, 0);
 856        string_list_clear_func(&states->push, clear_push_info);
 857}
 858
 859static int append_ref_to_tracked_list(const char *refname,
 860        const unsigned char *sha1, int flags, void *cb_data)
 861{
 862        struct ref_states *states = cb_data;
 863        struct refspec refspec;
 864
 865        if (flags & REF_ISSYMREF)
 866                return 0;
 867
 868        memset(&refspec, 0, sizeof(refspec));
 869        refspec.dst = (char *)refname;
 870        if (!remote_find_tracking(states->remote, &refspec))
 871                string_list_append(&states->tracked, abbrev_branch(refspec.src));
 872
 873        return 0;
 874}
 875
 876static int get_remote_ref_states(const char *name,
 877                                 struct ref_states *states,
 878                                 int query)
 879{
 880        struct transport *transport;
 881        const struct ref *remote_refs;
 882
 883        states->remote = remote_get(name);
 884        if (!states->remote)
 885                return error(_("No such remote: %s"), name);
 886
 887        read_branches();
 888
 889        if (query) {
 890                transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 891                        states->remote->url[0] : NULL);
 892                remote_refs = transport_get_remote_refs(transport);
 893                transport_disconnect(transport);
 894
 895                states->queried = 1;
 896                if (query & GET_REF_STATES)
 897                        get_ref_states(remote_refs, states);
 898                if (query & GET_HEAD_NAMES)
 899                        get_head_names(remote_refs, states);
 900                if (query & GET_PUSH_REF_STATES)
 901                        get_push_ref_states(remote_refs, states);
 902        } else {
 903                for_each_ref(append_ref_to_tracked_list, states);
 904                sort_string_list(&states->tracked);
 905                get_push_ref_states_noquery(states);
 906        }
 907
 908        return 0;
 909}
 910
 911struct show_info {
 912        struct string_list *list;
 913        struct ref_states *states;
 914        int width, width2;
 915        int any_rebase;
 916};
 917
 918static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 919{
 920        struct show_info *info = cb_data;
 921        int n = strlen(item->string);
 922        if (n > info->width)
 923                info->width = n;
 924        string_list_insert(info->list, item->string);
 925        return 0;
 926}
 927
 928static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 929{
 930        struct show_info *info = cb_data;
 931        struct ref_states *states = info->states;
 932        const char *name = item->string;
 933
 934        if (states->queried) {
 935                const char *fmt = "%s";
 936                const char *arg = "";
 937                if (string_list_has_string(&states->new, name)) {
 938                        fmt = _(" new (next fetch will store in remotes/%s)");
 939                        arg = states->remote->name;
 940                } else if (string_list_has_string(&states->tracked, name))
 941                        arg = _(" tracked");
 942                else if (string_list_has_string(&states->stale, name))
 943                        arg = _(" stale (use 'git remote prune' to remove)");
 944                else
 945                        arg = _(" ???");
 946                printf("    %-*s", info->width, name);
 947                printf(fmt, arg);
 948                printf("\n");
 949        } else
 950                printf("    %s\n", name);
 951
 952        return 0;
 953}
 954
 955static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 956{
 957        struct show_info *show_info = cb_data;
 958        struct ref_states *states = show_info->states;
 959        struct branch_info *branch_info = branch_item->util;
 960        struct string_list_item *item;
 961        int n;
 962
 963        if (!branch_info->merge.nr || !branch_info->remote_name ||
 964            strcmp(states->remote->name, branch_info->remote_name))
 965                return 0;
 966        if ((n = strlen(branch_item->string)) > show_info->width)
 967                show_info->width = n;
 968        if (branch_info->rebase)
 969                show_info->any_rebase = 1;
 970
 971        item = string_list_insert(show_info->list, branch_item->string);
 972        item->util = branch_info;
 973
 974        return 0;
 975}
 976
 977static int show_local_info_item(struct string_list_item *item, void *cb_data)
 978{
 979        struct show_info *show_info = cb_data;
 980        struct branch_info *branch_info = item->util;
 981        struct string_list *merge = &branch_info->merge;
 982        const char *also;
 983        int i;
 984
 985        if (branch_info->rebase && branch_info->merge.nr > 1) {
 986                error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"),
 987                        item->string);
 988                return 0;
 989        }
 990
 991        printf("    %-*s ", show_info->width, item->string);
 992        if (branch_info->rebase) {
 993                printf_ln(_("rebases onto remote %s"), merge->items[0].string);
 994                return 0;
 995        } else if (show_info->any_rebase) {
 996                printf_ln(_(" merges with remote %s"), merge->items[0].string);
 997                also = _("    and with remote");
 998        } else {
 999                printf_ln(_("merges with remote %s"), merge->items[0].string);
1000                also = _("   and with remote");
1001        }
1002        for (i = 1; i < merge->nr; i++)
1003                printf("    %-*s %s %s\n", show_info->width, "", also,
1004                       merge->items[i].string);
1005
1006        return 0;
1007}
1008
1009static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
1010{
1011        struct show_info *show_info = cb_data;
1012        struct push_info *push_info = push_item->util;
1013        struct string_list_item *item;
1014        int n;
1015        if ((n = strlen(push_item->string)) > show_info->width)
1016                show_info->width = n;
1017        if ((n = strlen(push_info->dest)) > show_info->width2)
1018                show_info->width2 = n;
1019        item = string_list_append(show_info->list, push_item->string);
1020        item->util = push_item->util;
1021        return 0;
1022}
1023
1024/*
1025 * Sorting comparison for a string list that has push_info
1026 * structs in its util field
1027 */
1028static int cmp_string_with_push(const void *va, const void *vb)
1029{
1030        const struct string_list_item *a = va;
1031        const struct string_list_item *b = vb;
1032        const struct push_info *a_push = a->util;
1033        const struct push_info *b_push = b->util;
1034        int cmp = strcmp(a->string, b->string);
1035        return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1036}
1037
1038static int show_push_info_item(struct string_list_item *item, void *cb_data)
1039{
1040        struct show_info *show_info = cb_data;
1041        struct push_info *push_info = item->util;
1042        const char *src = item->string, *status = NULL;
1043
1044        switch (push_info->status) {
1045        case PUSH_STATUS_CREATE:
1046                status = _("create");
1047                break;
1048        case PUSH_STATUS_DELETE:
1049                status = _("delete");
1050                src = _("(none)");
1051                break;
1052        case PUSH_STATUS_UPTODATE:
1053                status = _("up to date");
1054                break;
1055        case PUSH_STATUS_FASTFORWARD:
1056                status = _("fast-forwardable");
1057                break;
1058        case PUSH_STATUS_OUTOFDATE:
1059                status = _("local out of date");
1060                break;
1061        case PUSH_STATUS_NOTQUERIED:
1062                break;
1063        }
1064        if (status) {
1065                if (push_info->forced)
1066                        printf_ln(_("    %-*s forces to %-*s (%s)"), show_info->width, src,
1067                               show_info->width2, push_info->dest, status);
1068                else
1069                        printf_ln(_("    %-*s pushes to %-*s (%s)"), show_info->width, src,
1070                               show_info->width2, push_info->dest, status);
1071        } else {
1072                if (push_info->forced)
1073                        printf_ln(_("    %-*s forces to %s"), show_info->width, src,
1074                               push_info->dest);
1075                else
1076                        printf_ln(_("    %-*s pushes to %s"), show_info->width, src,
1077                               push_info->dest);
1078        }
1079        return 0;
1080}
1081
1082static int get_one_entry(struct remote *remote, void *priv)
1083{
1084        struct string_list *list = priv;
1085        struct strbuf url_buf = STRBUF_INIT;
1086        const char **url;
1087        int i, url_nr;
1088
1089        if (remote->url_nr > 0) {
1090                strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1091                string_list_append(list, remote->name)->util =
1092                                strbuf_detach(&url_buf, NULL);
1093        } else
1094                string_list_append(list, remote->name)->util = NULL;
1095        if (remote->pushurl_nr) {
1096                url = remote->pushurl;
1097                url_nr = remote->pushurl_nr;
1098        } else {
1099                url = remote->url;
1100                url_nr = remote->url_nr;
1101        }
1102        for (i = 0; i < url_nr; i++)
1103        {
1104                strbuf_addf(&url_buf, "%s (push)", url[i]);
1105                string_list_append(list, remote->name)->util =
1106                                strbuf_detach(&url_buf, NULL);
1107        }
1108
1109        return 0;
1110}
1111
1112static int show_all(void)
1113{
1114        struct string_list list = STRING_LIST_INIT_NODUP;
1115        int result;
1116
1117        list.strdup_strings = 1;
1118        result = for_each_remote(get_one_entry, &list);
1119
1120        if (!result) {
1121                int i;
1122
1123                sort_string_list(&list);
1124                for (i = 0; i < list.nr; i++) {
1125                        struct string_list_item *item = list.items + i;
1126                        if (verbose)
1127                                printf("%s\t%s\n", item->string,
1128                                        item->util ? (const char *)item->util : "");
1129                        else {
1130                                if (i && !strcmp((item - 1)->string, item->string))
1131                                        continue;
1132                                printf("%s\n", item->string);
1133                        }
1134                }
1135        }
1136        string_list_clear(&list, 1);
1137        return result;
1138}
1139
1140static int show(int argc, const char **argv)
1141{
1142        int no_query = 0, result = 0, query_flag = 0;
1143        struct option options[] = {
1144                OPT_BOOL('n', NULL, &no_query, N_("do not query remotes")),
1145                OPT_END()
1146        };
1147        struct ref_states states;
1148        struct string_list info_list = STRING_LIST_INIT_NODUP;
1149        struct show_info info;
1150
1151        argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1152                             0);
1153
1154        if (argc < 1)
1155                return show_all();
1156
1157        if (!no_query)
1158                query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1159
1160        memset(&states, 0, sizeof(states));
1161        memset(&info, 0, sizeof(info));
1162        info.states = &states;
1163        info.list = &info_list;
1164        for (; argc; argc--, argv++) {
1165                int i;
1166                const char **url;
1167                int url_nr;
1168
1169                get_remote_ref_states(*argv, &states, query_flag);
1170
1171                printf_ln(_("* remote %s"), *argv);
1172                printf_ln(_("  Fetch URL: %s"), states.remote->url_nr > 0 ?
1173                       states.remote->url[0] : _("(no URL)"));
1174                if (states.remote->pushurl_nr) {
1175                        url = states.remote->pushurl;
1176                        url_nr = states.remote->pushurl_nr;
1177                } else {
1178                        url = states.remote->url;
1179                        url_nr = states.remote->url_nr;
1180                }
1181                for (i = 0; i < url_nr; i++)
1182                        printf_ln(_("  Push  URL: %s"), url[i]);
1183                if (!i)
1184                        printf_ln(_("  Push  URL: %s"), "(no URL)");
1185                if (no_query)
1186                        printf_ln(_("  HEAD branch: %s"), "(not queried)");
1187                else if (!states.heads.nr)
1188                        printf_ln(_("  HEAD branch: %s"), "(unknown)");
1189                else if (states.heads.nr == 1)
1190                        printf_ln(_("  HEAD branch: %s"), states.heads.items[0].string);
1191                else {
1192                        printf(_("  HEAD branch (remote HEAD is ambiguous,"
1193                                 " may be one of the following):\n"));
1194                        for (i = 0; i < states.heads.nr; i++)
1195                                printf("    %s\n", states.heads.items[i].string);
1196                }
1197
1198                /* remote branch info */
1199                info.width = 0;
1200                for_each_string_list(&states.new, add_remote_to_show_info, &info);
1201                for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1202                for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1203                if (info.list->nr)
1204                        printf_ln(Q_("  Remote branch:%s",
1205                                     "  Remote branches:%s",
1206                                     info.list->nr),
1207                                  no_query ? _(" (status not queried)") : "");
1208                for_each_string_list(info.list, show_remote_info_item, &info);
1209                string_list_clear(info.list, 0);
1210
1211                /* git pull info */
1212                info.width = 0;
1213                info.any_rebase = 0;
1214                for_each_string_list(&branch_list, add_local_to_show_info, &info);
1215                if (info.list->nr)
1216                        printf_ln(Q_("  Local branch configured for 'git pull':",
1217                                     "  Local branches configured for 'git pull':",
1218                                     info.list->nr));
1219                for_each_string_list(info.list, show_local_info_item, &info);
1220                string_list_clear(info.list, 0);
1221
1222                /* git push info */
1223                if (states.remote->mirror)
1224                        printf_ln(_("  Local refs will be mirrored by 'git push'"));
1225
1226                info.width = info.width2 = 0;
1227                for_each_string_list(&states.push, add_push_to_show_info, &info);
1228                qsort(info.list->items, info.list->nr,
1229                        sizeof(*info.list->items), cmp_string_with_push);
1230                if (info.list->nr)
1231                        printf_ln(Q_("  Local ref configured for 'git push'%s:",
1232                                     "  Local refs configured for 'git push'%s:",
1233                                     info.list->nr),
1234                                  no_query ? _(" (status not queried)") : "");
1235                for_each_string_list(info.list, show_push_info_item, &info);
1236                string_list_clear(info.list, 0);
1237
1238                free_remote_ref_states(&states);
1239        }
1240
1241        return result;
1242}
1243
1244static int set_head(int argc, const char **argv)
1245{
1246        int i, opt_a = 0, opt_d = 0, result = 0;
1247        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1248        char *head_name = NULL;
1249
1250        struct option options[] = {
1251                OPT_BOOL('a', "auto", &opt_a,
1252                         N_("set refs/remotes/<name>/HEAD according to remote")),
1253                OPT_BOOL('d', "delete", &opt_d,
1254                         N_("delete refs/remotes/<name>/HEAD")),
1255                OPT_END()
1256        };
1257        argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1258                             0);
1259        if (argc)
1260                strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1261
1262        if (!opt_a && !opt_d && argc == 2) {
1263                head_name = xstrdup(argv[1]);
1264        } else if (opt_a && !opt_d && argc == 1) {
1265                struct ref_states states;
1266                memset(&states, 0, sizeof(states));
1267                get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1268                if (!states.heads.nr)
1269                        result |= error(_("Cannot determine remote HEAD"));
1270                else if (states.heads.nr > 1) {
1271                        result |= error(_("Multiple remote HEAD branches. "
1272                                          "Please choose one explicitly with:"));
1273                        for (i = 0; i < states.heads.nr; i++)
1274                                fprintf(stderr, "  git remote set-head %s %s\n",
1275                                        argv[0], states.heads.items[i].string);
1276                } else
1277                        head_name = xstrdup(states.heads.items[0].string);
1278                free_remote_ref_states(&states);
1279        } else if (opt_d && !opt_a && argc == 1) {
1280                if (delete_ref(buf.buf, NULL, REF_NODEREF))
1281                        result |= error(_("Could not delete %s"), buf.buf);
1282        } else
1283                usage_with_options(builtin_remote_sethead_usage, options);
1284
1285        if (head_name) {
1286                strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1287                /* make sure it's valid */
1288                if (!ref_exists(buf2.buf))
1289                        result |= error(_("Not a valid ref: %s"), buf2.buf);
1290                else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1291                        result |= error(_("Could not setup %s"), buf.buf);
1292                if (opt_a)
1293                        printf("%s/HEAD set to %s\n", argv[0], head_name);
1294                free(head_name);
1295        }
1296
1297        strbuf_release(&buf);
1298        strbuf_release(&buf2);
1299        return result;
1300}
1301
1302static int prune_remote(const char *remote, int dry_run)
1303{
1304        int result = 0, i;
1305        struct ref_states states;
1306        const char *dangling_msg = dry_run
1307                ? _(" %s will become dangling!")
1308                : _(" %s has become dangling!");
1309
1310        memset(&states, 0, sizeof(states));
1311        get_remote_ref_states(remote, &states, GET_REF_STATES);
1312
1313        if (states.stale.nr) {
1314                printf_ln(_("Pruning %s"), remote);
1315                printf_ln(_("URL: %s"),
1316                       states.remote->url_nr
1317                       ? states.remote->url[0]
1318                       : _("(no URL)"));
1319        }
1320
1321        for (i = 0; i < states.stale.nr; i++) {
1322                const char *refname = states.stale.items[i].util;
1323
1324                if (!dry_run)
1325                        result |= delete_ref(refname, NULL, 0);
1326
1327                if (dry_run)
1328                        printf_ln(_(" * [would prune] %s"),
1329                               abbrev_ref(refname, "refs/remotes/"));
1330                else
1331                        printf_ln(_(" * [pruned] %s"),
1332                               abbrev_ref(refname, "refs/remotes/"));
1333                warn_dangling_symref(stdout, dangling_msg, refname);
1334        }
1335
1336        free_remote_ref_states(&states);
1337        return result;
1338}
1339
1340static int prune(int argc, const char **argv)
1341{
1342        int dry_run = 0, result = 0;
1343        struct option options[] = {
1344                OPT__DRY_RUN(&dry_run, N_("dry run")),
1345                OPT_END()
1346        };
1347
1348        argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1349                             0);
1350
1351        if (argc < 1)
1352                usage_with_options(builtin_remote_prune_usage, options);
1353
1354        for (; argc; argc--, argv++)
1355                result |= prune_remote(*argv, dry_run);
1356
1357        return result;
1358}
1359
1360static int get_remote_default(const char *key, const char *value, void *priv)
1361{
1362        if (strcmp(key, "remotes.default") == 0) {
1363                int *found = priv;
1364                *found = 1;
1365        }
1366        return 0;
1367}
1368
1369static int update(int argc, const char **argv)
1370{
1371        int i, prune = -1;
1372        struct option options[] = {
1373                OPT_BOOL('p', "prune", &prune,
1374                         N_("prune remotes after fetching")),
1375                OPT_END()
1376        };
1377        struct argv_array fetch_argv = ARGV_ARRAY_INIT;
1378        int default_defined = 0;
1379        int retval;
1380
1381        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1382                             PARSE_OPT_KEEP_ARGV0);
1383
1384        argv_array_push(&fetch_argv, "fetch");
1385
1386        if (prune != -1)
1387                argv_array_push(&fetch_argv, prune ? "--prune" : "--no-prune");
1388        if (verbose)
1389                argv_array_push(&fetch_argv, "-v");
1390        argv_array_push(&fetch_argv, "--multiple");
1391        if (argc < 2)
1392                argv_array_push(&fetch_argv, "default");
1393        for (i = 1; i < argc; i++)
1394                argv_array_push(&fetch_argv, argv[i]);
1395
1396        if (strcmp(fetch_argv.argv[fetch_argv.argc-1], "default") == 0) {
1397                git_config(get_remote_default, &default_defined);
1398                if (!default_defined) {
1399                        argv_array_pop(&fetch_argv);
1400                        argv_array_push(&fetch_argv, "--all");
1401                }
1402        }
1403
1404        retval = run_command_v_opt(fetch_argv.argv, RUN_GIT_CMD);
1405        argv_array_clear(&fetch_argv);
1406        return retval;
1407}
1408
1409static int remove_all_fetch_refspecs(const char *remote, const char *key)
1410{
1411        return git_config_set_multivar(key, NULL, NULL, 1);
1412}
1413
1414static int add_branches(struct remote *remote, const char **branches,
1415                        const char *key)
1416{
1417        const char *remotename = remote->name;
1418        int mirror = remote->mirror;
1419        struct strbuf refspec = STRBUF_INIT;
1420
1421        for (; *branches; branches++)
1422                if (add_branch(key, *branches, remotename, mirror, &refspec)) {
1423                        strbuf_release(&refspec);
1424                        return 1;
1425                }
1426
1427        strbuf_release(&refspec);
1428        return 0;
1429}
1430
1431static int set_remote_branches(const char *remotename, const char **branches,
1432                                int add_mode)
1433{
1434        struct strbuf key = STRBUF_INIT;
1435        struct remote *remote;
1436
1437        strbuf_addf(&key, "remote.%s.fetch", remotename);
1438
1439        if (!remote_is_configured(remotename))
1440                die(_("No such remote '%s'"), remotename);
1441        remote = remote_get(remotename);
1442
1443        if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
1444                strbuf_release(&key);
1445                return 1;
1446        }
1447        if (add_branches(remote, branches, key.buf)) {
1448                strbuf_release(&key);
1449                return 1;
1450        }
1451
1452        strbuf_release(&key);
1453        return 0;
1454}
1455
1456static int set_branches(int argc, const char **argv)
1457{
1458        int add_mode = 0;
1459        struct option options[] = {
1460                OPT_BOOL('\0', "add", &add_mode, N_("add branch")),
1461                OPT_END()
1462        };
1463
1464        argc = parse_options(argc, argv, NULL, options,
1465                             builtin_remote_setbranches_usage, 0);
1466        if (argc == 0) {
1467                error(_("no remote specified"));
1468                usage_with_options(builtin_remote_setbranches_usage, options);
1469        }
1470        argv[argc] = NULL;
1471
1472        return set_remote_branches(argv[0], argv + 1, add_mode);
1473}
1474
1475static int set_url(int argc, const char **argv)
1476{
1477        int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1478        int matches = 0, negative_matches = 0;
1479        const char *remotename = NULL;
1480        const char *newurl = NULL;
1481        const char *oldurl = NULL;
1482        struct remote *remote;
1483        regex_t old_regex;
1484        const char **urlset;
1485        int urlset_nr;
1486        struct strbuf name_buf = STRBUF_INIT;
1487        struct option options[] = {
1488                OPT_BOOL('\0', "push", &push_mode,
1489                         N_("manipulate push URLs")),
1490                OPT_BOOL('\0', "add", &add_mode,
1491                         N_("add URL")),
1492                OPT_BOOL('\0', "delete", &delete_mode,
1493                            N_("delete URLs")),
1494                OPT_END()
1495        };
1496        argc = parse_options(argc, argv, NULL, options, builtin_remote_seturl_usage,
1497                             PARSE_OPT_KEEP_ARGV0);
1498
1499        if (add_mode && delete_mode)
1500                die(_("--add --delete doesn't make sense"));
1501
1502        if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1503                usage_with_options(builtin_remote_seturl_usage, options);
1504
1505        remotename = argv[1];
1506        newurl = argv[2];
1507        if (argc > 3)
1508                oldurl = argv[3];
1509
1510        if (delete_mode)
1511                oldurl = newurl;
1512
1513        if (!remote_is_configured(remotename))
1514                die(_("No such remote '%s'"), remotename);
1515        remote = remote_get(remotename);
1516
1517        if (push_mode) {
1518                strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1519                urlset = remote->pushurl;
1520                urlset_nr = remote->pushurl_nr;
1521        } else {
1522                strbuf_addf(&name_buf, "remote.%s.url", remotename);
1523                urlset = remote->url;
1524                urlset_nr = remote->url_nr;
1525        }
1526
1527        /* Special cases that add new entry. */
1528        if ((!oldurl && !delete_mode) || add_mode) {
1529                if (add_mode)
1530                        git_config_set_multivar(name_buf.buf, newurl,
1531                                "^$", 0);
1532                else
1533                        git_config_set(name_buf.buf, newurl);
1534                strbuf_release(&name_buf);
1535                return 0;
1536        }
1537
1538        /* Old URL specified. Demand that one matches. */
1539        if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1540                die(_("Invalid old URL pattern: %s"), oldurl);
1541
1542        for (i = 0; i < urlset_nr; i++)
1543                if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1544                        matches++;
1545                else
1546                        negative_matches++;
1547        if (!delete_mode && !matches)
1548                die(_("No such URL found: %s"), oldurl);
1549        if (delete_mode && !negative_matches && !push_mode)
1550                die(_("Will not delete all non-push URLs"));
1551
1552        regfree(&old_regex);
1553
1554        if (!delete_mode)
1555                git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1556        else
1557                git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1558        return 0;
1559}
1560
1561int cmd_remote(int argc, const char **argv, const char *prefix)
1562{
1563        struct option options[] = {
1564                OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")),
1565                OPT_END()
1566        };
1567        int result;
1568
1569        argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1570                PARSE_OPT_STOP_AT_NON_OPTION);
1571
1572        if (argc < 1)
1573                result = show_all();
1574        else if (!strcmp(argv[0], "add"))
1575                result = add(argc, argv);
1576        else if (!strcmp(argv[0], "rename"))
1577                result = mv(argc, argv);
1578        else if (!strcmp(argv[0], "rm") || !strcmp(argv[0], "remove"))
1579                result = rm(argc, argv);
1580        else if (!strcmp(argv[0], "set-head"))
1581                result = set_head(argc, argv);
1582        else if (!strcmp(argv[0], "set-branches"))
1583                result = set_branches(argc, argv);
1584        else if (!strcmp(argv[0], "set-url"))
1585                result = set_url(argc, argv);
1586        else if (!strcmp(argv[0], "show"))
1587                result = show(argc, argv);
1588        else if (!strcmp(argv[0], "prune"))
1589                result = prune(argc, argv);
1590        else if (!strcmp(argv[0], "update"))
1591                result = update(argc, argv);
1592        else {
1593                error(_("Unknown subcommand: %s"), argv[0]);
1594                usage_with_options(builtin_remote_usage, options);
1595        }
1596
1597        return result ? 1 : 0;
1598}