Andrew's git / gitweb.git / builtin/remote.c
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builtin / remote.con commit clone: accept config options on the command line (84054f7)
   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
  10static const char * const builtin_remote_usage[] = {
  11        "git remote [-v | --verbose]",
  12        "git remote add [-t <branch>] [-m <master>] [-f] [--mirror=<fetch|push>] <name> <url>",
  13        "git remote rename <old> <new>",
  14        "git remote rm <name>",
  15        "git remote set-head <name> (-a | -d | <branch>)",
  16        "git remote [-v | --verbose] show [-n] <name>",
  17        "git remote prune [-n | --dry-run] <name>",
  18        "git remote [-v | --verbose] update [-p | --prune] [(<group> | <remote>)...]",
  19        "git remote set-branches <name> [--add] <branch>...",
  20        "git remote set-url <name> <newurl> [<oldurl>]",
  21        "git remote set-url --add <name> <newurl>",
  22        "git remote set-url --delete <name> <url>",
  23        NULL
  24};
  25
  26static const char * const builtin_remote_add_usage[] = {
  27        "git remote add [<options>] <name> <url>",
  28        NULL
  29};
  30
  31static const char * const builtin_remote_rename_usage[] = {
  32        "git remote rename <old> <new>",
  33        NULL
  34};
  35
  36static const char * const builtin_remote_rm_usage[] = {
  37        "git remote rm <name>",
  38        NULL
  39};
  40
  41static const char * const builtin_remote_sethead_usage[] = {
  42        "git remote set-head <name> (-a | -d | <branch>])",
  43        NULL
  44};
  45
  46static const char * const builtin_remote_setbranches_usage[] = {
  47        "git remote set-branches <name> <branch>...",
  48        "git remote set-branches --add <name> <branch>...",
  49        NULL
  50};
  51
  52static const char * const builtin_remote_show_usage[] = {
  53        "git remote show [<options>] <name>",
  54        NULL
  55};
  56
  57static const char * const builtin_remote_prune_usage[] = {
  58        "git remote prune [<options>] <name>",
  59        NULL
  60};
  61
  62static const char * const builtin_remote_update_usage[] = {
  63        "git remote update [<options>] [<group> | <remote>]...",
  64        NULL
  65};
  66
  67static const char * const builtin_remote_seturl_usage[] = {
  68        "git remote set-url [--push] <name> <newurl> [<oldurl>]",
  69        "git remote set-url --add <name> <newurl>",
  70        "git remote set-url --delete <name> <url>",
  71        NULL
  72};
  73
  74#define GET_REF_STATES (1<<0)
  75#define GET_HEAD_NAMES (1<<1)
  76#define GET_PUSH_REF_STATES (1<<2)
  77
  78static int verbose;
  79
  80static int show_all(void);
  81static int prune_remote(const char *remote, int dry_run);
  82
  83static inline int postfixcmp(const char *string, const char *postfix)
  84{
  85        int len1 = strlen(string), len2 = strlen(postfix);
  86        if (len1 < len2)
  87                return 1;
  88        return strcmp(string + len1 - len2, postfix);
  89}
  90
  91static int fetch_remote(const char *name)
  92{
  93        const char *argv[] = { "fetch", name, NULL, NULL };
  94        if (verbose) {
  95                argv[1] = "-v";
  96                argv[2] = name;
  97        }
  98        printf("Updating %s\n", name);
  99        if (run_command_v_opt(argv, RUN_GIT_CMD))
 100                return error("Could not fetch %s", name);
 101        return 0;
 102}
 103
 104enum {
 105        TAGS_UNSET = 0,
 106        TAGS_DEFAULT = 1,
 107        TAGS_SET = 2
 108};
 109
 110#define MIRROR_NONE 0
 111#define MIRROR_FETCH 1
 112#define MIRROR_PUSH 2
 113#define MIRROR_BOTH (MIRROR_FETCH|MIRROR_PUSH)
 114
 115static int add_branch(const char *key, const char *branchname,
 116                const char *remotename, int mirror, struct strbuf *tmp)
 117{
 118        strbuf_reset(tmp);
 119        strbuf_addch(tmp, '+');
 120        if (mirror)
 121                strbuf_addf(tmp, "refs/%s:refs/%s",
 122                                branchname, branchname);
 123        else
 124                strbuf_addf(tmp, "refs/heads/%s:refs/remotes/%s/%s",
 125                                branchname, remotename, branchname);
 126        return git_config_set_multivar(key, tmp->buf, "^$", 0);
 127}
 128
 129static const char mirror_advice[] =
 130"--mirror is dangerous and deprecated; please\n"
 131"\t use --mirror=fetch or --mirror=push instead";
 132
 133static int parse_mirror_opt(const struct option *opt, const char *arg, int not)
 134{
 135        unsigned *mirror = opt->value;
 136        if (not)
 137                *mirror = MIRROR_NONE;
 138        else if (!arg) {
 139                warning("%s", mirror_advice);
 140                *mirror = MIRROR_BOTH;
 141        }
 142        else if (!strcmp(arg, "fetch"))
 143                *mirror = MIRROR_FETCH;
 144        else if (!strcmp(arg, "push"))
 145                *mirror = MIRROR_PUSH;
 146        else
 147                return error("unknown mirror argument: %s", arg);
 148        return 0;
 149}
 150
 151static int add(int argc, const char **argv)
 152{
 153        int fetch = 0, fetch_tags = TAGS_DEFAULT;
 154        unsigned mirror = MIRROR_NONE;
 155        struct string_list track = STRING_LIST_INIT_NODUP;
 156        const char *master = NULL;
 157        struct remote *remote;
 158        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
 159        const char *name, *url;
 160        int i;
 161
 162        struct option options[] = {
 163                OPT_BOOLEAN('f', "fetch", &fetch, "fetch the remote branches"),
 164                OPT_SET_INT(0, "tags", &fetch_tags,
 165                            "import all tags and associated objects when fetching",
 166                            TAGS_SET),
 167                OPT_SET_INT(0, NULL, &fetch_tags,
 168                            "or do not fetch any tag at all (--no-tags)", TAGS_UNSET),
 169                OPT_STRING_LIST('t', "track", &track, "branch",
 170                                "branch(es) to track"),
 171                OPT_STRING('m', "master", &master, "branch", "master branch"),
 172                { OPTION_CALLBACK, 0, "mirror", &mirror, "push|fetch",
 173                        "set up remote as a mirror to push to or fetch from",
 174                        PARSE_OPT_OPTARG, parse_mirror_opt },
 175                OPT_END()
 176        };
 177
 178        argc = parse_options(argc, argv, NULL, options, builtin_remote_add_usage,
 179                             0);
 180
 181        if (argc < 2)
 182                usage_with_options(builtin_remote_add_usage, options);
 183
 184        if (mirror && master)
 185                die("specifying a master branch makes no sense with --mirror");
 186        if (mirror && track.nr)
 187                die("specifying branches to track makes no sense with --mirror");
 188
 189        name = argv[0];
 190        url = argv[1];
 191
 192        remote = remote_get(name);
 193        if (remote && (remote->url_nr > 1 || strcmp(name, remote->url[0]) ||
 194                        remote->fetch_refspec_nr))
 195                die("remote %s already exists.", name);
 196
 197        strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
 198        if (!valid_fetch_refspec(buf2.buf))
 199                die("'%s' is not a valid remote name", name);
 200
 201        strbuf_addf(&buf, "remote.%s.url", name);
 202        if (git_config_set(buf.buf, url))
 203                return 1;
 204
 205        if (!mirror || mirror & MIRROR_FETCH) {
 206                strbuf_reset(&buf);
 207                strbuf_addf(&buf, "remote.%s.fetch", name);
 208                if (track.nr == 0)
 209                        string_list_append(&track, "*");
 210                for (i = 0; i < track.nr; i++) {
 211                        if (add_branch(buf.buf, track.items[i].string,
 212                                       name, mirror, &buf2))
 213                                return 1;
 214                }
 215        }
 216
 217        if (mirror & MIRROR_PUSH) {
 218                strbuf_reset(&buf);
 219                strbuf_addf(&buf, "remote.%s.mirror", name);
 220                if (git_config_set(buf.buf, "true"))
 221                        return 1;
 222        }
 223
 224        if (fetch_tags != TAGS_DEFAULT) {
 225                strbuf_reset(&buf);
 226                strbuf_addf(&buf, "remote.%s.tagopt", name);
 227                if (git_config_set(buf.buf,
 228                        fetch_tags == TAGS_SET ? "--tags" : "--no-tags"))
 229                        return 1;
 230        }
 231
 232        if (fetch && fetch_remote(name))
 233                return 1;
 234
 235        if (master) {
 236                strbuf_reset(&buf);
 237                strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
 238
 239                strbuf_reset(&buf2);
 240                strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
 241
 242                if (create_symref(buf.buf, buf2.buf, "remote add"))
 243                        return error("Could not setup master '%s'", master);
 244        }
 245
 246        strbuf_release(&buf);
 247        strbuf_release(&buf2);
 248        string_list_clear(&track, 0);
 249
 250        return 0;
 251}
 252
 253struct branch_info {
 254        char *remote_name;
 255        struct string_list merge;
 256        int rebase;
 257};
 258
 259static struct string_list branch_list;
 260
 261static const char *abbrev_ref(const char *name, const char *prefix)
 262{
 263        const char *abbrev = skip_prefix(name, prefix);
 264        if (abbrev)
 265                return abbrev;
 266        return name;
 267}
 268#define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 269
 270static int config_read_branches(const char *key, const char *value, void *cb)
 271{
 272        if (!prefixcmp(key, "branch.")) {
 273                const char *orig_key = key;
 274                char *name;
 275                struct string_list_item *item;
 276                struct branch_info *info;
 277                enum { REMOTE, MERGE, REBASE } type;
 278
 279                key += 7;
 280                if (!postfixcmp(key, ".remote")) {
 281                        name = xstrndup(key, strlen(key) - 7);
 282                        type = REMOTE;
 283                } else if (!postfixcmp(key, ".merge")) {
 284                        name = xstrndup(key, strlen(key) - 6);
 285                        type = MERGE;
 286                } else if (!postfixcmp(key, ".rebase")) {
 287                        name = xstrndup(key, strlen(key) - 7);
 288                        type = REBASE;
 289                } else
 290                        return 0;
 291
 292                item = string_list_insert(&branch_list, name);
 293
 294                if (!item->util)
 295                        item->util = xcalloc(sizeof(struct branch_info), 1);
 296                info = item->util;
 297                if (type == REMOTE) {
 298                        if (info->remote_name)
 299                                warning("more than one %s", orig_key);
 300                        info->remote_name = xstrdup(value);
 301                } else if (type == MERGE) {
 302                        char *space = strchr(value, ' ');
 303                        value = abbrev_branch(value);
 304                        while (space) {
 305                                char *merge;
 306                                merge = xstrndup(value, space - value);
 307                                string_list_append(&info->merge, merge);
 308                                value = abbrev_branch(space + 1);
 309                                space = strchr(value, ' ');
 310                        }
 311                        string_list_append(&info->merge, xstrdup(value));
 312                } else
 313                        info->rebase = git_config_bool(orig_key, value);
 314        }
 315        return 0;
 316}
 317
 318static void read_branches(void)
 319{
 320        if (branch_list.nr)
 321                return;
 322        git_config(config_read_branches, NULL);
 323}
 324
 325struct ref_states {
 326        struct remote *remote;
 327        struct string_list new, stale, tracked, heads, push;
 328        int queried;
 329};
 330
 331static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 332{
 333        struct ref *fetch_map = NULL, **tail = &fetch_map;
 334        struct ref *ref, *stale_refs;
 335        int i;
 336
 337        for (i = 0; i < states->remote->fetch_refspec_nr; i++)
 338                if (get_fetch_map(remote_refs, states->remote->fetch + i, &tail, 1))
 339                        die("Could not get fetch map for refspec %s",
 340                                states->remote->fetch_refspec[i]);
 341
 342        states->new.strdup_strings = 1;
 343        states->tracked.strdup_strings = 1;
 344        states->stale.strdup_strings = 1;
 345        for (ref = fetch_map; ref; ref = ref->next) {
 346                unsigned char sha1[20];
 347                if (!ref->peer_ref || read_ref(ref->peer_ref->name, sha1))
 348                        string_list_append(&states->new, abbrev_branch(ref->name));
 349                else
 350                        string_list_append(&states->tracked, abbrev_branch(ref->name));
 351        }
 352        stale_refs = get_stale_heads(states->remote, fetch_map);
 353        for (ref = stale_refs; ref; ref = ref->next) {
 354                struct string_list_item *item =
 355                        string_list_append(&states->stale, abbrev_branch(ref->name));
 356                item->util = xstrdup(ref->name);
 357        }
 358        free_refs(stale_refs);
 359        free_refs(fetch_map);
 360
 361        sort_string_list(&states->new);
 362        sort_string_list(&states->tracked);
 363        sort_string_list(&states->stale);
 364
 365        return 0;
 366}
 367
 368struct push_info {
 369        char *dest;
 370        int forced;
 371        enum {
 372                PUSH_STATUS_CREATE = 0,
 373                PUSH_STATUS_DELETE,
 374                PUSH_STATUS_UPTODATE,
 375                PUSH_STATUS_FASTFORWARD,
 376                PUSH_STATUS_OUTOFDATE,
 377                PUSH_STATUS_NOTQUERIED
 378        } status;
 379};
 380
 381static int get_push_ref_states(const struct ref *remote_refs,
 382        struct ref_states *states)
 383{
 384        struct remote *remote = states->remote;
 385        struct ref *ref, *local_refs, *push_map;
 386        if (remote->mirror)
 387                return 0;
 388
 389        local_refs = get_local_heads();
 390        push_map = copy_ref_list(remote_refs);
 391
 392        match_refs(local_refs, &push_map, remote->push_refspec_nr,
 393                   remote->push_refspec, MATCH_REFS_NONE);
 394
 395        states->push.strdup_strings = 1;
 396        for (ref = push_map; ref; ref = ref->next) {
 397                struct string_list_item *item;
 398                struct push_info *info;
 399
 400                if (!ref->peer_ref)
 401                        continue;
 402                hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
 403
 404                item = string_list_append(&states->push,
 405                                          abbrev_branch(ref->peer_ref->name));
 406                item->util = xcalloc(sizeof(struct push_info), 1);
 407                info = item->util;
 408                info->forced = ref->force;
 409                info->dest = xstrdup(abbrev_branch(ref->name));
 410
 411                if (is_null_sha1(ref->new_sha1)) {
 412                        info->status = PUSH_STATUS_DELETE;
 413                } else if (!hashcmp(ref->old_sha1, ref->new_sha1))
 414                        info->status = PUSH_STATUS_UPTODATE;
 415                else if (is_null_sha1(ref->old_sha1))
 416                        info->status = PUSH_STATUS_CREATE;
 417                else if (has_sha1_file(ref->old_sha1) &&
 418                         ref_newer(ref->new_sha1, ref->old_sha1))
 419                        info->status = PUSH_STATUS_FASTFORWARD;
 420                else
 421                        info->status = PUSH_STATUS_OUTOFDATE;
 422        }
 423        free_refs(local_refs);
 424        free_refs(push_map);
 425        return 0;
 426}
 427
 428static int get_push_ref_states_noquery(struct ref_states *states)
 429{
 430        int i;
 431        struct remote *remote = states->remote;
 432        struct string_list_item *item;
 433        struct push_info *info;
 434
 435        if (remote->mirror)
 436                return 0;
 437
 438        states->push.strdup_strings = 1;
 439        if (!remote->push_refspec_nr) {
 440                item = string_list_append(&states->push, "(matching)");
 441                info = item->util = xcalloc(sizeof(struct push_info), 1);
 442                info->status = PUSH_STATUS_NOTQUERIED;
 443                info->dest = xstrdup(item->string);
 444        }
 445        for (i = 0; i < remote->push_refspec_nr; i++) {
 446                struct refspec *spec = remote->push + i;
 447                if (spec->matching)
 448                        item = string_list_append(&states->push, "(matching)");
 449                else if (strlen(spec->src))
 450                        item = string_list_append(&states->push, spec->src);
 451                else
 452                        item = string_list_append(&states->push, "(delete)");
 453
 454                info = item->util = xcalloc(sizeof(struct push_info), 1);
 455                info->forced = spec->force;
 456                info->status = PUSH_STATUS_NOTQUERIED;
 457                info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 458        }
 459        return 0;
 460}
 461
 462static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 463{
 464        struct ref *ref, *matches;
 465        struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 466        struct refspec refspec;
 467
 468        refspec.force = 0;
 469        refspec.pattern = 1;
 470        refspec.src = refspec.dst = "refs/heads/*";
 471        states->heads.strdup_strings = 1;
 472        get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 473        matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 474                                    fetch_map, 1);
 475        for (ref = matches; ref; ref = ref->next)
 476                string_list_append(&states->heads, abbrev_branch(ref->name));
 477
 478        free_refs(fetch_map);
 479        free_refs(matches);
 480
 481        return 0;
 482}
 483
 484struct known_remote {
 485        struct known_remote *next;
 486        struct remote *remote;
 487};
 488
 489struct known_remotes {
 490        struct remote *to_delete;
 491        struct known_remote *list;
 492};
 493
 494static int add_known_remote(struct remote *remote, void *cb_data)
 495{
 496        struct known_remotes *all = cb_data;
 497        struct known_remote *r;
 498
 499        if (!strcmp(all->to_delete->name, remote->name))
 500                return 0;
 501
 502        r = xmalloc(sizeof(*r));
 503        r->remote = remote;
 504        r->next = all->list;
 505        all->list = r;
 506        return 0;
 507}
 508
 509struct branches_for_remote {
 510        struct remote *remote;
 511        struct string_list *branches, *skipped;
 512        struct known_remotes *keep;
 513};
 514
 515static int add_branch_for_removal(const char *refname,
 516        const unsigned char *sha1, int flags, void *cb_data)
 517{
 518        struct branches_for_remote *branches = cb_data;
 519        struct refspec refspec;
 520        struct string_list_item *item;
 521        struct known_remote *kr;
 522
 523        memset(&refspec, 0, sizeof(refspec));
 524        refspec.dst = (char *)refname;
 525        if (remote_find_tracking(branches->remote, &refspec))
 526                return 0;
 527
 528        /* don't delete a branch if another remote also uses it */
 529        for (kr = branches->keep->list; kr; kr = kr->next) {
 530                memset(&refspec, 0, sizeof(refspec));
 531                refspec.dst = (char *)refname;
 532                if (!remote_find_tracking(kr->remote, &refspec))
 533                        return 0;
 534        }
 535
 536        /* don't delete non-remote-tracking refs */
 537        if (prefixcmp(refname, "refs/remotes")) {
 538                /* advise user how to delete local branches */
 539                if (!prefixcmp(refname, "refs/heads/"))
 540                        string_list_append(branches->skipped,
 541                                           abbrev_branch(refname));
 542                /* silently skip over other non-remote refs */
 543                return 0;
 544        }
 545
 546        /* make sure that symrefs are deleted */
 547        if (flags & REF_ISSYMREF)
 548                return unlink(git_path("%s", refname));
 549
 550        item = string_list_append(branches->branches, refname);
 551        item->util = xmalloc(20);
 552        hashcpy(item->util, sha1);
 553
 554        return 0;
 555}
 556
 557struct rename_info {
 558        const char *old;
 559        const char *new;
 560        struct string_list *remote_branches;
 561};
 562
 563static int read_remote_branches(const char *refname,
 564        const unsigned char *sha1, int flags, void *cb_data)
 565{
 566        struct rename_info *rename = cb_data;
 567        struct strbuf buf = STRBUF_INIT;
 568        struct string_list_item *item;
 569        int flag;
 570        unsigned char orig_sha1[20];
 571        const char *symref;
 572
 573        strbuf_addf(&buf, "refs/remotes/%s", rename->old);
 574        if (!prefixcmp(refname, buf.buf)) {
 575                item = string_list_append(rename->remote_branches, xstrdup(refname));
 576                symref = resolve_ref(refname, orig_sha1, 1, &flag);
 577                if (flag & REF_ISSYMREF)
 578                        item->util = xstrdup(symref);
 579                else
 580                        item->util = NULL;
 581        }
 582
 583        return 0;
 584}
 585
 586static int migrate_file(struct remote *remote)
 587{
 588        struct strbuf buf = STRBUF_INIT;
 589        int i;
 590        char *path = NULL;
 591
 592        strbuf_addf(&buf, "remote.%s.url", remote->name);
 593        for (i = 0; i < remote->url_nr; i++)
 594                if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0))
 595                        return error("Could not append '%s' to '%s'",
 596                                        remote->url[i], buf.buf);
 597        strbuf_reset(&buf);
 598        strbuf_addf(&buf, "remote.%s.push", remote->name);
 599        for (i = 0; i < remote->push_refspec_nr; i++)
 600                if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0))
 601                        return error("Could not append '%s' to '%s'",
 602                                        remote->push_refspec[i], buf.buf);
 603        strbuf_reset(&buf);
 604        strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 605        for (i = 0; i < remote->fetch_refspec_nr; i++)
 606                if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0))
 607                        return error("Could not append '%s' to '%s'",
 608                                        remote->fetch_refspec[i], buf.buf);
 609        if (remote->origin == REMOTE_REMOTES)
 610                path = git_path("remotes/%s", remote->name);
 611        else if (remote->origin == REMOTE_BRANCHES)
 612                path = git_path("branches/%s", remote->name);
 613        if (path)
 614                unlink_or_warn(path);
 615        return 0;
 616}
 617
 618static int mv(int argc, const char **argv)
 619{
 620        struct option options[] = {
 621                OPT_END()
 622        };
 623        struct remote *oldremote, *newremote;
 624        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT;
 625        struct string_list remote_branches = STRING_LIST_INIT_NODUP;
 626        struct rename_info rename;
 627        int i;
 628
 629        if (argc != 3)
 630                usage_with_options(builtin_remote_rename_usage, options);
 631
 632        rename.old = argv[1];
 633        rename.new = argv[2];
 634        rename.remote_branches = &remote_branches;
 635
 636        oldremote = remote_get(rename.old);
 637        if (!oldremote)
 638                die("No such remote: %s", rename.old);
 639
 640        if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
 641                return migrate_file(oldremote);
 642
 643        newremote = remote_get(rename.new);
 644        if (newremote && (newremote->url_nr > 1 || newremote->fetch_refspec_nr))
 645                die("remote %s already exists.", rename.new);
 646
 647        strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
 648        if (!valid_fetch_refspec(buf.buf))
 649                die("'%s' is not a valid remote name", rename.new);
 650
 651        strbuf_reset(&buf);
 652        strbuf_addf(&buf, "remote.%s", rename.old);
 653        strbuf_addf(&buf2, "remote.%s", rename.new);
 654        if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 655                return error("Could not rename config section '%s' to '%s'",
 656                                buf.buf, buf2.buf);
 657
 658        strbuf_reset(&buf);
 659        strbuf_addf(&buf, "remote.%s.fetch", rename.new);
 660        if (git_config_set_multivar(buf.buf, NULL, NULL, 1))
 661                return error("Could not remove config section '%s'", buf.buf);
 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, rename.old);
 668                if (ptr)
 669                        strbuf_splice(&buf2, ptr-buf2.buf, strlen(rename.old),
 670                                        rename.new, strlen(rename.new));
 671                if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 672                        return error("Could not append '%s'", buf.buf);
 673        }
 674
 675        read_branches();
 676        for (i = 0; i < branch_list.nr; i++) {
 677                struct string_list_item *item = branch_list.items + i;
 678                struct branch_info *info = item->util;
 679                if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 680                        strbuf_reset(&buf);
 681                        strbuf_addf(&buf, "branch.%s.remote", item->string);
 682                        if (git_config_set(buf.buf, rename.new)) {
 683                                return error("Could not set '%s'", buf.buf);
 684                        }
 685                }
 686        }
 687
 688        /*
 689         * First remove symrefs, then rename the rest, finally create
 690         * the new symrefs.
 691         */
 692        for_each_ref(read_remote_branches, &rename);
 693        for (i = 0; i < remote_branches.nr; i++) {
 694                struct string_list_item *item = remote_branches.items + i;
 695                int flag = 0;
 696                unsigned char sha1[20];
 697
 698                resolve_ref(item->string, sha1, 1, &flag);
 699                if (!(flag & REF_ISSYMREF))
 700                        continue;
 701                if (delete_ref(item->string, NULL, REF_NODEREF))
 702                        die("deleting '%s' failed", item->string);
 703        }
 704        for (i = 0; i < remote_branches.nr; i++) {
 705                struct string_list_item *item = remote_branches.items + i;
 706
 707                if (item->util)
 708                        continue;
 709                strbuf_reset(&buf);
 710                strbuf_addstr(&buf, item->string);
 711                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 712                                rename.new, strlen(rename.new));
 713                strbuf_reset(&buf2);
 714                strbuf_addf(&buf2, "remote: renamed %s to %s",
 715                                item->string, buf.buf);
 716                if (rename_ref(item->string, buf.buf, buf2.buf))
 717                        die("renaming '%s' failed", item->string);
 718        }
 719        for (i = 0; i < remote_branches.nr; i++) {
 720                struct string_list_item *item = remote_branches.items + i;
 721
 722                if (!item->util)
 723                        continue;
 724                strbuf_reset(&buf);
 725                strbuf_addstr(&buf, item->string);
 726                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 727                                rename.new, strlen(rename.new));
 728                strbuf_reset(&buf2);
 729                strbuf_addstr(&buf2, item->util);
 730                strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
 731                                rename.new, strlen(rename.new));
 732                strbuf_reset(&buf3);
 733                strbuf_addf(&buf3, "remote: renamed %s to %s",
 734                                item->string, buf.buf);
 735                if (create_symref(buf.buf, buf2.buf, buf3.buf))
 736                        die("creating '%s' failed", buf.buf);
 737        }
 738        return 0;
 739}
 740
 741static int remove_branches(struct string_list *branches)
 742{
 743        int i, result = 0;
 744        for (i = 0; i < branches->nr; i++) {
 745                struct string_list_item *item = branches->items + i;
 746                const char *refname = item->string;
 747                unsigned char *sha1 = item->util;
 748
 749                if (delete_ref(refname, sha1, 0))
 750                        result |= error("Could not remove branch %s", refname);
 751        }
 752        return result;
 753}
 754
 755static int rm(int argc, const char **argv)
 756{
 757        struct option options[] = {
 758                OPT_END()
 759        };
 760        struct remote *remote;
 761        struct strbuf buf = STRBUF_INIT;
 762        struct known_remotes known_remotes = { NULL, NULL };
 763        struct string_list branches = STRING_LIST_INIT_DUP;
 764        struct string_list skipped = STRING_LIST_INIT_DUP;
 765        struct branches_for_remote cb_data;
 766        int i, result;
 767
 768        memset(&cb_data, 0, sizeof(cb_data));
 769        cb_data.branches = &branches;
 770        cb_data.skipped = &skipped;
 771        cb_data.keep = &known_remotes;
 772
 773        if (argc != 2)
 774                usage_with_options(builtin_remote_rm_usage, options);
 775
 776        remote = remote_get(argv[1]);
 777        if (!remote)
 778                die("No such remote: %s", argv[1]);
 779
 780        known_remotes.to_delete = remote;
 781        for_each_remote(add_known_remote, &known_remotes);
 782
 783        strbuf_addf(&buf, "remote.%s", remote->name);
 784        if (git_config_rename_section(buf.buf, NULL) < 1)
 785                return error("Could not remove config section '%s'", buf.buf);
 786
 787        read_branches();
 788        for (i = 0; i < branch_list.nr; i++) {
 789                struct string_list_item *item = branch_list.items + i;
 790                struct branch_info *info = item->util;
 791                if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 792                        const char *keys[] = { "remote", "merge", NULL }, **k;
 793                        for (k = keys; *k; k++) {
 794                                strbuf_reset(&buf);
 795                                strbuf_addf(&buf, "branch.%s.%s",
 796                                                item->string, *k);
 797                                if (git_config_set(buf.buf, NULL)) {
 798                                        strbuf_release(&buf);
 799                                        return -1;
 800                                }
 801                        }
 802                }
 803        }
 804
 805        /*
 806         * We cannot just pass a function to for_each_ref() which deletes
 807         * the branches one by one, since for_each_ref() relies on cached
 808         * refs, which are invalidated when deleting a branch.
 809         */
 810        cb_data.remote = remote;
 811        result = for_each_ref(add_branch_for_removal, &cb_data);
 812        strbuf_release(&buf);
 813
 814        if (!result)
 815                result = remove_branches(&branches);
 816        string_list_clear(&branches, 1);
 817
 818        if (skipped.nr) {
 819                fprintf(stderr, skipped.nr == 1 ?
 820                        "Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 821                        "to delete it, use:\n" :
 822                        "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 823                        "to delete them, use:\n");
 824                for (i = 0; i < skipped.nr; i++)
 825                        fprintf(stderr, "  git branch -d %s\n",
 826                                skipped.items[i].string);
 827        }
 828        string_list_clear(&skipped, 0);
 829
 830        return result;
 831}
 832
 833static void clear_push_info(void *util, const char *string)
 834{
 835        struct push_info *info = util;
 836        free(info->dest);
 837        free(info);
 838}
 839
 840static void free_remote_ref_states(struct ref_states *states)
 841{
 842        string_list_clear(&states->new, 0);
 843        string_list_clear(&states->stale, 1);
 844        string_list_clear(&states->tracked, 0);
 845        string_list_clear(&states->heads, 0);
 846        string_list_clear_func(&states->push, clear_push_info);
 847}
 848
 849static int append_ref_to_tracked_list(const char *refname,
 850        const unsigned char *sha1, int flags, void *cb_data)
 851{
 852        struct ref_states *states = cb_data;
 853        struct refspec refspec;
 854
 855        if (flags & REF_ISSYMREF)
 856                return 0;
 857
 858        memset(&refspec, 0, sizeof(refspec));
 859        refspec.dst = (char *)refname;
 860        if (!remote_find_tracking(states->remote, &refspec))
 861                string_list_append(&states->tracked, abbrev_branch(refspec.src));
 862
 863        return 0;
 864}
 865
 866static int get_remote_ref_states(const char *name,
 867                                 struct ref_states *states,
 868                                 int query)
 869{
 870        struct transport *transport;
 871        const struct ref *remote_refs;
 872
 873        states->remote = remote_get(name);
 874        if (!states->remote)
 875                return error("No such remote: %s", name);
 876
 877        read_branches();
 878
 879        if (query) {
 880                transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 881                        states->remote->url[0] : NULL);
 882                remote_refs = transport_get_remote_refs(transport);
 883                transport_disconnect(transport);
 884
 885                states->queried = 1;
 886                if (query & GET_REF_STATES)
 887                        get_ref_states(remote_refs, states);
 888                if (query & GET_HEAD_NAMES)
 889                        get_head_names(remote_refs, states);
 890                if (query & GET_PUSH_REF_STATES)
 891                        get_push_ref_states(remote_refs, states);
 892        } else {
 893                for_each_ref(append_ref_to_tracked_list, states);
 894                sort_string_list(&states->tracked);
 895                get_push_ref_states_noquery(states);
 896        }
 897
 898        return 0;
 899}
 900
 901struct show_info {
 902        struct string_list *list;
 903        struct ref_states *states;
 904        int width, width2;
 905        int any_rebase;
 906};
 907
 908static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 909{
 910        struct show_info *info = cb_data;
 911        int n = strlen(item->string);
 912        if (n > info->width)
 913                info->width = n;
 914        string_list_insert(info->list, item->string);
 915        return 0;
 916}
 917
 918static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 919{
 920        struct show_info *info = cb_data;
 921        struct ref_states *states = info->states;
 922        const char *name = item->string;
 923
 924        if (states->queried) {
 925                const char *fmt = "%s";
 926                const char *arg = "";
 927                if (string_list_has_string(&states->new, name)) {
 928                        fmt = " new (next fetch will store in remotes/%s)";
 929                        arg = states->remote->name;
 930                } else if (string_list_has_string(&states->tracked, name))
 931                        arg = " tracked";
 932                else if (string_list_has_string(&states->stale, name))
 933                        arg = " stale (use 'git remote prune' to remove)";
 934                else
 935                        arg = " ???";
 936                printf("    %-*s", info->width, name);
 937                printf(fmt, arg);
 938                printf("\n");
 939        } else
 940                printf("    %s\n", name);
 941
 942        return 0;
 943}
 944
 945static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 946{
 947        struct show_info *show_info = cb_data;
 948        struct ref_states *states = show_info->states;
 949        struct branch_info *branch_info = branch_item->util;
 950        struct string_list_item *item;
 951        int n;
 952
 953        if (!branch_info->merge.nr || !branch_info->remote_name ||
 954            strcmp(states->remote->name, branch_info->remote_name))
 955                return 0;
 956        if ((n = strlen(branch_item->string)) > show_info->width)
 957                show_info->width = n;
 958        if (branch_info->rebase)
 959                show_info->any_rebase = 1;
 960
 961        item = string_list_insert(show_info->list, branch_item->string);
 962        item->util = branch_info;
 963
 964        return 0;
 965}
 966
 967static int show_local_info_item(struct string_list_item *item, void *cb_data)
 968{
 969        struct show_info *show_info = cb_data;
 970        struct branch_info *branch_info = item->util;
 971        struct string_list *merge = &branch_info->merge;
 972        const char *also;
 973        int i;
 974
 975        if (branch_info->rebase && branch_info->merge.nr > 1) {
 976                error("invalid branch.%s.merge; cannot rebase onto > 1 branch",
 977                        item->string);
 978                return 0;
 979        }
 980
 981        printf("    %-*s ", show_info->width, item->string);
 982        if (branch_info->rebase) {
 983                printf("rebases onto remote %s\n", merge->items[0].string);
 984                return 0;
 985        } else if (show_info->any_rebase) {
 986                printf(" merges with remote %s\n", merge->items[0].string);
 987                also = "    and with remote";
 988        } else {
 989                printf("merges with remote %s\n", merge->items[0].string);
 990                also = "   and with remote";
 991        }
 992        for (i = 1; i < merge->nr; i++)
 993                printf("    %-*s %s %s\n", show_info->width, "", also,
 994                       merge->items[i].string);
 995
 996        return 0;
 997}
 998
 999static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
1000{
1001        struct show_info *show_info = cb_data;
1002        struct push_info *push_info = push_item->util;
1003        struct string_list_item *item;
1004        int n;
1005        if ((n = strlen(push_item->string)) > show_info->width)
1006                show_info->width = n;
1007        if ((n = strlen(push_info->dest)) > show_info->width2)
1008                show_info->width2 = n;
1009        item = string_list_append(show_info->list, push_item->string);
1010        item->util = push_item->util;
1011        return 0;
1012}
1013
1014/*
1015 * Sorting comparison for a string list that has push_info
1016 * structs in its util field
1017 */
1018static int cmp_string_with_push(const void *va, const void *vb)
1019{
1020        const struct string_list_item *a = va;
1021        const struct string_list_item *b = vb;
1022        const struct push_info *a_push = a->util;
1023        const struct push_info *b_push = b->util;
1024        int cmp = strcmp(a->string, b->string);
1025        return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1026}
1027
1028static int show_push_info_item(struct string_list_item *item, void *cb_data)
1029{
1030        struct show_info *show_info = cb_data;
1031        struct push_info *push_info = item->util;
1032        char *src = item->string, *status = NULL;
1033
1034        switch (push_info->status) {
1035        case PUSH_STATUS_CREATE:
1036                status = "create";
1037                break;
1038        case PUSH_STATUS_DELETE:
1039                status = "delete";
1040                src = "(none)";
1041                break;
1042        case PUSH_STATUS_UPTODATE:
1043                status = "up to date";
1044                break;
1045        case PUSH_STATUS_FASTFORWARD:
1046                status = "fast-forwardable";
1047                break;
1048        case PUSH_STATUS_OUTOFDATE:
1049                status = "local out of date";
1050                break;
1051        case PUSH_STATUS_NOTQUERIED:
1052                break;
1053        }
1054        if (status)
1055                printf("    %-*s %s to %-*s (%s)\n", show_info->width, src,
1056                        push_info->forced ? "forces" : "pushes",
1057                        show_info->width2, push_info->dest, status);
1058        else
1059                printf("    %-*s %s to %s\n", show_info->width, src,
1060                        push_info->forced ? "forces" : "pushes",
1061                        push_info->dest);
1062        return 0;
1063}
1064
1065static int show(int argc, const char **argv)
1066{
1067        int no_query = 0, result = 0, query_flag = 0;
1068        struct option options[] = {
1069                OPT_BOOLEAN('n', NULL, &no_query, "do not query remotes"),
1070                OPT_END()
1071        };
1072        struct ref_states states;
1073        struct string_list info_list = STRING_LIST_INIT_NODUP;
1074        struct show_info info;
1075
1076        argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1077                             0);
1078
1079        if (argc < 1)
1080                return show_all();
1081
1082        if (!no_query)
1083                query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1084
1085        memset(&states, 0, sizeof(states));
1086        memset(&info, 0, sizeof(info));
1087        info.states = &states;
1088        info.list = &info_list;
1089        for (; argc; argc--, argv++) {
1090                int i;
1091                const char **url;
1092                int url_nr;
1093
1094                get_remote_ref_states(*argv, &states, query_flag);
1095
1096                printf("* remote %s\n", *argv);
1097                printf("  Fetch URL: %s\n", states.remote->url_nr > 0 ?
1098                        states.remote->url[0] : "(no URL)");
1099                if (states.remote->pushurl_nr) {
1100                        url = states.remote->pushurl;
1101                        url_nr = states.remote->pushurl_nr;
1102                } else {
1103                        url = states.remote->url;
1104                        url_nr = states.remote->url_nr;
1105                }
1106                for (i=0; i < url_nr; i++)
1107                        printf("  Push  URL: %s\n", url[i]);
1108                if (!i)
1109                        printf("  Push  URL: %s\n", "(no URL)");
1110                if (no_query)
1111                        printf("  HEAD branch: (not queried)\n");
1112                else if (!states.heads.nr)
1113                        printf("  HEAD branch: (unknown)\n");
1114                else if (states.heads.nr == 1)
1115                        printf("  HEAD branch: %s\n", states.heads.items[0].string);
1116                else {
1117                        printf("  HEAD branch (remote HEAD is ambiguous,"
1118                               " may be one of the following):\n");
1119                        for (i = 0; i < states.heads.nr; i++)
1120                                printf("    %s\n", states.heads.items[i].string);
1121                }
1122
1123                /* remote branch info */
1124                info.width = 0;
1125                for_each_string_list(&states.new, add_remote_to_show_info, &info);
1126                for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1127                for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1128                if (info.list->nr)
1129                        printf("  Remote branch%s:%s\n",
1130                               info.list->nr > 1 ? "es" : "",
1131                                no_query ? " (status not queried)" : "");
1132                for_each_string_list(info.list, show_remote_info_item, &info);
1133                string_list_clear(info.list, 0);
1134
1135                /* git pull info */
1136                info.width = 0;
1137                info.any_rebase = 0;
1138                for_each_string_list(&branch_list, add_local_to_show_info, &info);
1139                if (info.list->nr)
1140                        printf("  Local branch%s configured for 'git pull':\n",
1141                               info.list->nr > 1 ? "es" : "");
1142                for_each_string_list(info.list, show_local_info_item, &info);
1143                string_list_clear(info.list, 0);
1144
1145                /* git push info */
1146                if (states.remote->mirror)
1147                        printf("  Local refs will be mirrored by 'git push'\n");
1148
1149                info.width = info.width2 = 0;
1150                for_each_string_list(&states.push, add_push_to_show_info, &info);
1151                qsort(info.list->items, info.list->nr,
1152                        sizeof(*info.list->items), cmp_string_with_push);
1153                if (info.list->nr)
1154                        printf("  Local ref%s configured for 'git push'%s:\n",
1155                                info.list->nr > 1 ? "s" : "",
1156                                no_query ? " (status not queried)" : "");
1157                for_each_string_list(info.list, show_push_info_item, &info);
1158                string_list_clear(info.list, 0);
1159
1160                free_remote_ref_states(&states);
1161        }
1162
1163        return result;
1164}
1165
1166static int set_head(int argc, const char **argv)
1167{
1168        int i, opt_a = 0, opt_d = 0, result = 0;
1169        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1170        char *head_name = NULL;
1171
1172        struct option options[] = {
1173                OPT_BOOLEAN('a', "auto", &opt_a,
1174                            "set refs/remotes/<name>/HEAD according to remote"),
1175                OPT_BOOLEAN('d', "delete", &opt_d,
1176                            "delete refs/remotes/<name>/HEAD"),
1177                OPT_END()
1178        };
1179        argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1180                             0);
1181        if (argc)
1182                strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1183
1184        if (!opt_a && !opt_d && argc == 2) {
1185                head_name = xstrdup(argv[1]);
1186        } else if (opt_a && !opt_d && argc == 1) {
1187                struct ref_states states;
1188                memset(&states, 0, sizeof(states));
1189                get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1190                if (!states.heads.nr)
1191                        result |= error("Cannot determine remote HEAD");
1192                else if (states.heads.nr > 1) {
1193                        result |= error("Multiple remote HEAD branches. "
1194                                        "Please choose one explicitly with:");
1195                        for (i = 0; i < states.heads.nr; i++)
1196                                fprintf(stderr, "  git remote set-head %s %s\n",
1197                                        argv[0], states.heads.items[i].string);
1198                } else
1199                        head_name = xstrdup(states.heads.items[0].string);
1200                free_remote_ref_states(&states);
1201        } else if (opt_d && !opt_a && argc == 1) {
1202                if (delete_ref(buf.buf, NULL, REF_NODEREF))
1203                        result |= error("Could not delete %s", buf.buf);
1204        } else
1205                usage_with_options(builtin_remote_sethead_usage, options);
1206
1207        if (head_name) {
1208                unsigned char sha1[20];
1209                strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1210                /* make sure it's valid */
1211                if (!resolve_ref(buf2.buf, sha1, 1, NULL))
1212                        result |= error("Not a valid ref: %s", buf2.buf);
1213                else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1214                        result |= error("Could not setup %s", buf.buf);
1215                if (opt_a)
1216                        printf("%s/HEAD set to %s\n", argv[0], head_name);
1217                free(head_name);
1218        }
1219
1220        strbuf_release(&buf);
1221        strbuf_release(&buf2);
1222        return result;
1223}
1224
1225static int prune(int argc, const char **argv)
1226{
1227        int dry_run = 0, result = 0;
1228        struct option options[] = {
1229                OPT__DRY_RUN(&dry_run, "dry run"),
1230                OPT_END()
1231        };
1232
1233        argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1234                             0);
1235
1236        if (argc < 1)
1237                usage_with_options(builtin_remote_prune_usage, options);
1238
1239        for (; argc; argc--, argv++)
1240                result |= prune_remote(*argv, dry_run);
1241
1242        return result;
1243}
1244
1245static int prune_remote(const char *remote, int dry_run)
1246{
1247        int result = 0, i;
1248        struct ref_states states;
1249        const char *dangling_msg = dry_run
1250                ? " %s will become dangling!\n"
1251                : " %s has become dangling!\n";
1252
1253        memset(&states, 0, sizeof(states));
1254        get_remote_ref_states(remote, &states, GET_REF_STATES);
1255
1256        if (states.stale.nr) {
1257                printf("Pruning %s\n", remote);
1258                printf("URL: %s\n",
1259                       states.remote->url_nr
1260                       ? states.remote->url[0]
1261                       : "(no URL)");
1262        }
1263
1264        for (i = 0; i < states.stale.nr; i++) {
1265                const char *refname = states.stale.items[i].util;
1266
1267                if (!dry_run)
1268                        result |= delete_ref(refname, NULL, 0);
1269
1270                printf(" * [%s] %s\n", dry_run ? "would prune" : "pruned",
1271                       abbrev_ref(refname, "refs/remotes/"));
1272                warn_dangling_symref(stdout, dangling_msg, refname);
1273        }
1274
1275        free_remote_ref_states(&states);
1276        return result;
1277}
1278
1279static int get_remote_default(const char *key, const char *value, void *priv)
1280{
1281        if (strcmp(key, "remotes.default") == 0) {
1282                int *found = priv;
1283                *found = 1;
1284        }
1285        return 0;
1286}
1287
1288static int update(int argc, const char **argv)
1289{
1290        int i, prune = 0;
1291        struct option options[] = {
1292                OPT_BOOLEAN('p', "prune", &prune,
1293                            "prune remotes after fetching"),
1294                OPT_END()
1295        };
1296        const char **fetch_argv;
1297        int fetch_argc = 0;
1298        int default_defined = 0;
1299
1300        fetch_argv = xmalloc(sizeof(char *) * (argc+5));
1301
1302        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1303                             PARSE_OPT_KEEP_ARGV0);
1304
1305        fetch_argv[fetch_argc++] = "fetch";
1306
1307        if (prune)
1308                fetch_argv[fetch_argc++] = "--prune";
1309        if (verbose)
1310                fetch_argv[fetch_argc++] = "-v";
1311        fetch_argv[fetch_argc++] = "--multiple";
1312        if (argc < 2)
1313                fetch_argv[fetch_argc++] = "default";
1314        for (i = 1; i < argc; i++)
1315                fetch_argv[fetch_argc++] = argv[i];
1316
1317        if (strcmp(fetch_argv[fetch_argc-1], "default") == 0) {
1318                git_config(get_remote_default, &default_defined);
1319                if (!default_defined)
1320                        fetch_argv[fetch_argc-1] = "--all";
1321        }
1322
1323        fetch_argv[fetch_argc] = NULL;
1324
1325        return run_command_v_opt(fetch_argv, RUN_GIT_CMD);
1326}
1327
1328static int remove_all_fetch_refspecs(const char *remote, const char *key)
1329{
1330        return git_config_set_multivar(key, NULL, NULL, 1);
1331}
1332
1333static int add_branches(struct remote *remote, const char **branches,
1334                        const char *key)
1335{
1336        const char *remotename = remote->name;
1337        int mirror = remote->mirror;
1338        struct strbuf refspec = STRBUF_INIT;
1339
1340        for (; *branches; branches++)
1341                if (add_branch(key, *branches, remotename, mirror, &refspec)) {
1342                        strbuf_release(&refspec);
1343                        return 1;
1344                }
1345
1346        strbuf_release(&refspec);
1347        return 0;
1348}
1349
1350static int set_remote_branches(const char *remotename, const char **branches,
1351                                int add_mode)
1352{
1353        struct strbuf key = STRBUF_INIT;
1354        struct remote *remote;
1355
1356        strbuf_addf(&key, "remote.%s.fetch", remotename);
1357
1358        if (!remote_is_configured(remotename))
1359                die("No such remote '%s'", remotename);
1360        remote = remote_get(remotename);
1361
1362        if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
1363                strbuf_release(&key);
1364                return 1;
1365        }
1366        if (add_branches(remote, branches, key.buf)) {
1367                strbuf_release(&key);
1368                return 1;
1369        }
1370
1371        strbuf_release(&key);
1372        return 0;
1373}
1374
1375static int set_branches(int argc, const char **argv)
1376{
1377        int add_mode = 0;
1378        struct option options[] = {
1379                OPT_BOOLEAN('\0', "add", &add_mode, "add branch"),
1380                OPT_END()
1381        };
1382
1383        argc = parse_options(argc, argv, NULL, options,
1384                             builtin_remote_setbranches_usage, 0);
1385        if (argc == 0) {
1386                error("no remote specified");
1387                usage_with_options(builtin_remote_seturl_usage, options);
1388        }
1389        argv[argc] = NULL;
1390
1391        return set_remote_branches(argv[0], argv + 1, add_mode);
1392}
1393
1394static int set_url(int argc, const char **argv)
1395{
1396        int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1397        int matches = 0, negative_matches = 0;
1398        const char *remotename = NULL;
1399        const char *newurl = NULL;
1400        const char *oldurl = NULL;
1401        struct remote *remote;
1402        regex_t old_regex;
1403        const char **urlset;
1404        int urlset_nr;
1405        struct strbuf name_buf = STRBUF_INIT;
1406        struct option options[] = {
1407                OPT_BOOLEAN('\0', "push", &push_mode,
1408                            "manipulate push URLs"),
1409                OPT_BOOLEAN('\0', "add", &add_mode,
1410                            "add URL"),
1411                OPT_BOOLEAN('\0', "delete", &delete_mode,
1412                            "delete URLs"),
1413                OPT_END()
1414        };
1415        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1416                             PARSE_OPT_KEEP_ARGV0);
1417
1418        if (add_mode && delete_mode)
1419                die("--add --delete doesn't make sense");
1420
1421        if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1422                usage_with_options(builtin_remote_seturl_usage, options);
1423
1424        remotename = argv[1];
1425        newurl = argv[2];
1426        if (argc > 3)
1427                oldurl = argv[3];
1428
1429        if (delete_mode)
1430                oldurl = newurl;
1431
1432        if (!remote_is_configured(remotename))
1433                die("No such remote '%s'", remotename);
1434        remote = remote_get(remotename);
1435
1436        if (push_mode) {
1437                strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1438                urlset = remote->pushurl;
1439                urlset_nr = remote->pushurl_nr;
1440        } else {
1441                strbuf_addf(&name_buf, "remote.%s.url", remotename);
1442                urlset = remote->url;
1443                urlset_nr = remote->url_nr;
1444        }
1445
1446        /* Special cases that add new entry. */
1447        if ((!oldurl && !delete_mode) || add_mode) {
1448                if (add_mode)
1449                        git_config_set_multivar(name_buf.buf, newurl,
1450                                "^$", 0);
1451                else
1452                        git_config_set(name_buf.buf, newurl);
1453                strbuf_release(&name_buf);
1454                return 0;
1455        }
1456
1457        /* Old URL specified. Demand that one matches. */
1458        if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1459                die("Invalid old URL pattern: %s", oldurl);
1460
1461        for (i = 0; i < urlset_nr; i++)
1462                if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1463                        matches++;
1464                else
1465                        negative_matches++;
1466        if (!delete_mode && !matches)
1467                die("No such URL found: %s", oldurl);
1468        if (delete_mode && !negative_matches && !push_mode)
1469                die("Will not delete all non-push URLs");
1470
1471        regfree(&old_regex);
1472
1473        if (!delete_mode)
1474                git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1475        else
1476                git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1477        return 0;
1478}
1479
1480static int get_one_entry(struct remote *remote, void *priv)
1481{
1482        struct string_list *list = priv;
1483        struct strbuf url_buf = STRBUF_INIT;
1484        const char **url;
1485        int i, url_nr;
1486
1487        if (remote->url_nr > 0) {
1488                strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1489                string_list_append(list, remote->name)->util =
1490                                strbuf_detach(&url_buf, NULL);
1491        } else
1492                string_list_append(list, remote->name)->util = NULL;
1493        if (remote->pushurl_nr) {
1494                url = remote->pushurl;
1495                url_nr = remote->pushurl_nr;
1496        } else {
1497                url = remote->url;
1498                url_nr = remote->url_nr;
1499        }
1500        for (i = 0; i < url_nr; i++)
1501        {
1502                strbuf_addf(&url_buf, "%s (push)", url[i]);
1503                string_list_append(list, remote->name)->util =
1504                                strbuf_detach(&url_buf, NULL);
1505        }
1506
1507        return 0;
1508}
1509
1510static int show_all(void)
1511{
1512        struct string_list list = STRING_LIST_INIT_NODUP;
1513        int result;
1514
1515        list.strdup_strings = 1;
1516        result = for_each_remote(get_one_entry, &list);
1517
1518        if (!result) {
1519                int i;
1520
1521                sort_string_list(&list);
1522                for (i = 0; i < list.nr; i++) {
1523                        struct string_list_item *item = list.items + i;
1524                        if (verbose)
1525                                printf("%s\t%s\n", item->string,
1526                                        item->util ? (const char *)item->util : "");
1527                        else {
1528                                if (i && !strcmp((item - 1)->string, item->string))
1529                                        continue;
1530                                printf("%s\n", item->string);
1531                        }
1532                }
1533        }
1534        string_list_clear(&list, 1);
1535        return result;
1536}
1537
1538int cmd_remote(int argc, const char **argv, const char *prefix)
1539{
1540        struct option options[] = {
1541                OPT__VERBOSE(&verbose, "be verbose; must be placed before a subcommand"),
1542                OPT_END()
1543        };
1544        int result;
1545
1546        argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1547                PARSE_OPT_STOP_AT_NON_OPTION);
1548
1549        if (argc < 1)
1550                result = show_all();
1551        else if (!strcmp(argv[0], "add"))
1552                result = add(argc, argv);
1553        else if (!strcmp(argv[0], "rename"))
1554                result = mv(argc, argv);
1555        else if (!strcmp(argv[0], "rm"))
1556                result = rm(argc, argv);
1557        else if (!strcmp(argv[0], "set-head"))
1558                result = set_head(argc, argv);
1559        else if (!strcmp(argv[0], "set-branches"))
1560                result = set_branches(argc, argv);
1561        else if (!strcmp(argv[0], "set-url"))
1562                result = set_url(argc, argv);
1563        else if (!strcmp(argv[0], "show"))
1564                result = show(argc, argv);
1565        else if (!strcmp(argv[0], "prune"))
1566                result = prune(argc, argv);
1567        else if (!strcmp(argv[0], "update"))
1568                result = update(argc, argv);
1569        else {
1570                error("Unknown subcommand: %s", argv[0]);
1571                usage_with_options(builtin_remote_usage, options);
1572        }
1573
1574        return result ? 1 : 0;
1575}