Andrew's git / gitweb.git / builtin/remote.c
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builtin / remote.con commit revert: prettify fatal messages (5e1e6b9)
   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 && !(mirror & MIRROR_FETCH) && track.nr)
 187                die("specifying branches to track makes sense only with fetch mirrors");
 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,
 353                                     states->remote->fetch_refspec_nr, fetch_map);
 354        for (ref = stale_refs; ref; ref = ref->next) {
 355                struct string_list_item *item =
 356                        string_list_append(&states->stale, abbrev_branch(ref->name));
 357                item->util = xstrdup(ref->name);
 358        }
 359        free_refs(stale_refs);
 360        free_refs(fetch_map);
 361
 362        sort_string_list(&states->new);
 363        sort_string_list(&states->tracked);
 364        sort_string_list(&states->stale);
 365
 366        return 0;
 367}
 368
 369struct push_info {
 370        char *dest;
 371        int forced;
 372        enum {
 373                PUSH_STATUS_CREATE = 0,
 374                PUSH_STATUS_DELETE,
 375                PUSH_STATUS_UPTODATE,
 376                PUSH_STATUS_FASTFORWARD,
 377                PUSH_STATUS_OUTOFDATE,
 378                PUSH_STATUS_NOTQUERIED
 379        } status;
 380};
 381
 382static int get_push_ref_states(const struct ref *remote_refs,
 383        struct ref_states *states)
 384{
 385        struct remote *remote = states->remote;
 386        struct ref *ref, *local_refs, *push_map;
 387        if (remote->mirror)
 388                return 0;
 389
 390        local_refs = get_local_heads();
 391        push_map = copy_ref_list(remote_refs);
 392
 393        match_push_refs(local_refs, &push_map, remote->push_refspec_nr,
 394                        remote->push_refspec, MATCH_REFS_NONE);
 395
 396        states->push.strdup_strings = 1;
 397        for (ref = push_map; ref; ref = ref->next) {
 398                struct string_list_item *item;
 399                struct push_info *info;
 400
 401                if (!ref->peer_ref)
 402                        continue;
 403                hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
 404
 405                item = string_list_append(&states->push,
 406                                          abbrev_branch(ref->peer_ref->name));
 407                item->util = xcalloc(sizeof(struct push_info), 1);
 408                info = item->util;
 409                info->forced = ref->force;
 410                info->dest = xstrdup(abbrev_branch(ref->name));
 411
 412                if (is_null_sha1(ref->new_sha1)) {
 413                        info->status = PUSH_STATUS_DELETE;
 414                } else if (!hashcmp(ref->old_sha1, ref->new_sha1))
 415                        info->status = PUSH_STATUS_UPTODATE;
 416                else if (is_null_sha1(ref->old_sha1))
 417                        info->status = PUSH_STATUS_CREATE;
 418                else if (has_sha1_file(ref->old_sha1) &&
 419                         ref_newer(ref->new_sha1, ref->old_sha1))
 420                        info->status = PUSH_STATUS_FASTFORWARD;
 421                else
 422                        info->status = PUSH_STATUS_OUTOFDATE;
 423        }
 424        free_refs(local_refs);
 425        free_refs(push_map);
 426        return 0;
 427}
 428
 429static int get_push_ref_states_noquery(struct ref_states *states)
 430{
 431        int i;
 432        struct remote *remote = states->remote;
 433        struct string_list_item *item;
 434        struct push_info *info;
 435
 436        if (remote->mirror)
 437                return 0;
 438
 439        states->push.strdup_strings = 1;
 440        if (!remote->push_refspec_nr) {
 441                item = string_list_append(&states->push, "(matching)");
 442                info = item->util = xcalloc(sizeof(struct push_info), 1);
 443                info->status = PUSH_STATUS_NOTQUERIED;
 444                info->dest = xstrdup(item->string);
 445        }
 446        for (i = 0; i < remote->push_refspec_nr; i++) {
 447                struct refspec *spec = remote->push + i;
 448                if (spec->matching)
 449                        item = string_list_append(&states->push, "(matching)");
 450                else if (strlen(spec->src))
 451                        item = string_list_append(&states->push, spec->src);
 452                else
 453                        item = string_list_append(&states->push, "(delete)");
 454
 455                info = item->util = xcalloc(sizeof(struct push_info), 1);
 456                info->forced = spec->force;
 457                info->status = PUSH_STATUS_NOTQUERIED;
 458                info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 459        }
 460        return 0;
 461}
 462
 463static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 464{
 465        struct ref *ref, *matches;
 466        struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 467        struct refspec refspec;
 468
 469        refspec.force = 0;
 470        refspec.pattern = 1;
 471        refspec.src = refspec.dst = "refs/heads/*";
 472        states->heads.strdup_strings = 1;
 473        get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 474        matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 475                                    fetch_map, 1);
 476        for (ref = matches; ref; ref = ref->next)
 477                string_list_append(&states->heads, abbrev_branch(ref->name));
 478
 479        free_refs(fetch_map);
 480        free_refs(matches);
 481
 482        return 0;
 483}
 484
 485struct known_remote {
 486        struct known_remote *next;
 487        struct remote *remote;
 488};
 489
 490struct known_remotes {
 491        struct remote *to_delete;
 492        struct known_remote *list;
 493};
 494
 495static int add_known_remote(struct remote *remote, void *cb_data)
 496{
 497        struct known_remotes *all = cb_data;
 498        struct known_remote *r;
 499
 500        if (!strcmp(all->to_delete->name, remote->name))
 501                return 0;
 502
 503        r = xmalloc(sizeof(*r));
 504        r->remote = remote;
 505        r->next = all->list;
 506        all->list = r;
 507        return 0;
 508}
 509
 510struct branches_for_remote {
 511        struct remote *remote;
 512        struct string_list *branches, *skipped;
 513        struct known_remotes *keep;
 514};
 515
 516static int add_branch_for_removal(const char *refname,
 517        const unsigned char *sha1, int flags, void *cb_data)
 518{
 519        struct branches_for_remote *branches = cb_data;
 520        struct refspec refspec;
 521        struct string_list_item *item;
 522        struct known_remote *kr;
 523
 524        memset(&refspec, 0, sizeof(refspec));
 525        refspec.dst = (char *)refname;
 526        if (remote_find_tracking(branches->remote, &refspec))
 527                return 0;
 528
 529        /* don't delete a branch if another remote also uses it */
 530        for (kr = branches->keep->list; kr; kr = kr->next) {
 531                memset(&refspec, 0, sizeof(refspec));
 532                refspec.dst = (char *)refname;
 533                if (!remote_find_tracking(kr->remote, &refspec))
 534                        return 0;
 535        }
 536
 537        /* don't delete non-remote-tracking refs */
 538        if (prefixcmp(refname, "refs/remotes")) {
 539                /* advise user how to delete local branches */
 540                if (!prefixcmp(refname, "refs/heads/"))
 541                        string_list_append(branches->skipped,
 542                                           abbrev_branch(refname));
 543                /* silently skip over other non-remote refs */
 544                return 0;
 545        }
 546
 547        /* make sure that symrefs are deleted */
 548        if (flags & REF_ISSYMREF)
 549                return unlink(git_path("%s", refname));
 550
 551        item = string_list_append(branches->branches, refname);
 552        item->util = xmalloc(20);
 553        hashcpy(item->util, sha1);
 554
 555        return 0;
 556}
 557
 558struct rename_info {
 559        const char *old;
 560        const char *new;
 561        struct string_list *remote_branches;
 562};
 563
 564static int read_remote_branches(const char *refname,
 565        const unsigned char *sha1, int flags, void *cb_data)
 566{
 567        struct rename_info *rename = cb_data;
 568        struct strbuf buf = STRBUF_INIT;
 569        struct string_list_item *item;
 570        int flag;
 571        unsigned char orig_sha1[20];
 572        const char *symref;
 573
 574        strbuf_addf(&buf, "refs/remotes/%s/", rename->old);
 575        if (!prefixcmp(refname, buf.buf)) {
 576                item = string_list_append(rename->remote_branches, xstrdup(refname));
 577                symref = resolve_ref(refname, orig_sha1, 1, &flag);
 578                if (flag & REF_ISSYMREF)
 579                        item->util = xstrdup(symref);
 580                else
 581                        item->util = NULL;
 582        }
 583
 584        return 0;
 585}
 586
 587static int migrate_file(struct remote *remote)
 588{
 589        struct strbuf buf = STRBUF_INIT;
 590        int i;
 591        char *path = NULL;
 592
 593        strbuf_addf(&buf, "remote.%s.url", remote->name);
 594        for (i = 0; i < remote->url_nr; i++)
 595                if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0))
 596                        return error("Could not append '%s' to '%s'",
 597                                        remote->url[i], buf.buf);
 598        strbuf_reset(&buf);
 599        strbuf_addf(&buf, "remote.%s.push", remote->name);
 600        for (i = 0; i < remote->push_refspec_nr; i++)
 601                if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0))
 602                        return error("Could not append '%s' to '%s'",
 603                                        remote->push_refspec[i], buf.buf);
 604        strbuf_reset(&buf);
 605        strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 606        for (i = 0; i < remote->fetch_refspec_nr; i++)
 607                if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0))
 608                        return error("Could not append '%s' to '%s'",
 609                                        remote->fetch_refspec[i], buf.buf);
 610        if (remote->origin == REMOTE_REMOTES)
 611                path = git_path("remotes/%s", remote->name);
 612        else if (remote->origin == REMOTE_BRANCHES)
 613                path = git_path("branches/%s", remote->name);
 614        if (path)
 615                unlink_or_warn(path);
 616        return 0;
 617}
 618
 619static int mv(int argc, const char **argv)
 620{
 621        struct option options[] = {
 622                OPT_END()
 623        };
 624        struct remote *oldremote, *newremote;
 625        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT,
 626                old_remote_context = STRBUF_INIT;
 627        struct string_list remote_branches = STRING_LIST_INIT_NODUP;
 628        struct rename_info rename;
 629        int i, refspec_updated = 0;
 630
 631        if (argc != 3)
 632                usage_with_options(builtin_remote_rename_usage, options);
 633
 634        rename.old = argv[1];
 635        rename.new = argv[2];
 636        rename.remote_branches = &remote_branches;
 637
 638        oldremote = remote_get(rename.old);
 639        if (!oldremote)
 640                die("No such remote: %s", rename.old);
 641
 642        if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
 643                return migrate_file(oldremote);
 644
 645        newremote = remote_get(rename.new);
 646        if (newremote && (newremote->url_nr > 1 || newremote->fetch_refspec_nr))
 647                die("remote %s already exists.", rename.new);
 648
 649        strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
 650        if (!valid_fetch_refspec(buf.buf))
 651                die("'%s' is not a valid remote name", rename.new);
 652
 653        strbuf_reset(&buf);
 654        strbuf_addf(&buf, "remote.%s", rename.old);
 655        strbuf_addf(&buf2, "remote.%s", rename.new);
 656        if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 657                return error("Could not rename config section '%s' to '%s'",
 658                                buf.buf, buf2.buf);
 659
 660        strbuf_reset(&buf);
 661        strbuf_addf(&buf, "remote.%s.fetch", rename.new);
 662        if (git_config_set_multivar(buf.buf, NULL, NULL, 1))
 663                return error("Could not remove config section '%s'", buf.buf);
 664        strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old);
 665        for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 666                char *ptr;
 667
 668                strbuf_reset(&buf2);
 669                strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 670                ptr = strstr(buf2.buf, old_remote_context.buf);
 671                if (ptr) {
 672                        refspec_updated = 1;
 673                        strbuf_splice(&buf2,
 674                                      ptr-buf2.buf + strlen(":refs/remotes/"),
 675                                      strlen(rename.old), rename.new,
 676                                      strlen(rename.new));
 677                } else
 678                        warning("Not updating non-default fetch respec\n"
 679                                "\t%s\n"
 680                                "\tPlease update the configuration manually if necessary.",
 681                                buf2.buf);
 682
 683                if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 684                        return error("Could not append '%s'", buf.buf);
 685        }
 686
 687        read_branches();
 688        for (i = 0; i < branch_list.nr; i++) {
 689                struct string_list_item *item = branch_list.items + i;
 690                struct branch_info *info = item->util;
 691                if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 692                        strbuf_reset(&buf);
 693                        strbuf_addf(&buf, "branch.%s.remote", item->string);
 694                        if (git_config_set(buf.buf, rename.new)) {
 695                                return error("Could not set '%s'", buf.buf);
 696                        }
 697                }
 698        }
 699
 700        if (!refspec_updated)
 701                return 0;
 702
 703        /*
 704         * First remove symrefs, then rename the rest, finally create
 705         * the new symrefs.
 706         */
 707        for_each_ref(read_remote_branches, &rename);
 708        for (i = 0; i < remote_branches.nr; i++) {
 709                struct string_list_item *item = remote_branches.items + i;
 710                int flag = 0;
 711                unsigned char sha1[20];
 712
 713                resolve_ref(item->string, sha1, 1, &flag);
 714                if (!(flag & REF_ISSYMREF))
 715                        continue;
 716                if (delete_ref(item->string, NULL, REF_NODEREF))
 717                        die("deleting '%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_addf(&buf2, "remote: renamed %s to %s",
 730                                item->string, buf.buf);
 731                if (rename_ref(item->string, buf.buf, buf2.buf))
 732                        die("renaming '%s' failed", item->string);
 733        }
 734        for (i = 0; i < remote_branches.nr; i++) {
 735                struct string_list_item *item = remote_branches.items + i;
 736
 737                if (!item->util)
 738                        continue;
 739                strbuf_reset(&buf);
 740                strbuf_addstr(&buf, item->string);
 741                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 742                                rename.new, strlen(rename.new));
 743                strbuf_reset(&buf2);
 744                strbuf_addstr(&buf2, item->util);
 745                strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
 746                                rename.new, strlen(rename.new));
 747                strbuf_reset(&buf3);
 748                strbuf_addf(&buf3, "remote: renamed %s to %s",
 749                                item->string, buf.buf);
 750                if (create_symref(buf.buf, buf2.buf, buf3.buf))
 751                        die("creating '%s' failed", buf.buf);
 752        }
 753        return 0;
 754}
 755
 756static int remove_branches(struct string_list *branches)
 757{
 758        int i, result = 0;
 759        for (i = 0; i < branches->nr; i++) {
 760                struct string_list_item *item = branches->items + i;
 761                const char *refname = item->string;
 762                unsigned char *sha1 = item->util;
 763
 764                if (delete_ref(refname, sha1, 0))
 765                        result |= error("Could not remove branch %s", refname);
 766        }
 767        return result;
 768}
 769
 770static int rm(int argc, const char **argv)
 771{
 772        struct option options[] = {
 773                OPT_END()
 774        };
 775        struct remote *remote;
 776        struct strbuf buf = STRBUF_INIT;
 777        struct known_remotes known_remotes = { NULL, NULL };
 778        struct string_list branches = STRING_LIST_INIT_DUP;
 779        struct string_list skipped = STRING_LIST_INIT_DUP;
 780        struct branches_for_remote cb_data;
 781        int i, result;
 782
 783        memset(&cb_data, 0, sizeof(cb_data));
 784        cb_data.branches = &branches;
 785        cb_data.skipped = &skipped;
 786        cb_data.keep = &known_remotes;
 787
 788        if (argc != 2)
 789                usage_with_options(builtin_remote_rm_usage, options);
 790
 791        remote = remote_get(argv[1]);
 792        if (!remote)
 793                die("No such remote: %s", argv[1]);
 794
 795        known_remotes.to_delete = remote;
 796        for_each_remote(add_known_remote, &known_remotes);
 797
 798        strbuf_addf(&buf, "remote.%s", remote->name);
 799        if (git_config_rename_section(buf.buf, NULL) < 1)
 800                return error("Could not remove config section '%s'", buf.buf);
 801
 802        read_branches();
 803        for (i = 0; i < branch_list.nr; i++) {
 804                struct string_list_item *item = branch_list.items + i;
 805                struct branch_info *info = item->util;
 806                if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 807                        const char *keys[] = { "remote", "merge", NULL }, **k;
 808                        for (k = keys; *k; k++) {
 809                                strbuf_reset(&buf);
 810                                strbuf_addf(&buf, "branch.%s.%s",
 811                                                item->string, *k);
 812                                if (git_config_set(buf.buf, NULL)) {
 813                                        strbuf_release(&buf);
 814                                        return -1;
 815                                }
 816                        }
 817                }
 818        }
 819
 820        /*
 821         * We cannot just pass a function to for_each_ref() which deletes
 822         * the branches one by one, since for_each_ref() relies on cached
 823         * refs, which are invalidated when deleting a branch.
 824         */
 825        cb_data.remote = remote;
 826        result = for_each_ref(add_branch_for_removal, &cb_data);
 827        strbuf_release(&buf);
 828
 829        if (!result)
 830                result = remove_branches(&branches);
 831        string_list_clear(&branches, 1);
 832
 833        if (skipped.nr) {
 834                fprintf(stderr, skipped.nr == 1 ?
 835                        "Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 836                        "to delete it, use:\n" :
 837                        "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 838                        "to delete them, use:\n");
 839                for (i = 0; i < skipped.nr; i++)
 840                        fprintf(stderr, "  git branch -d %s\n",
 841                                skipped.items[i].string);
 842        }
 843        string_list_clear(&skipped, 0);
 844
 845        return result;
 846}
 847
 848static void clear_push_info(void *util, const char *string)
 849{
 850        struct push_info *info = util;
 851        free(info->dest);
 852        free(info);
 853}
 854
 855static void free_remote_ref_states(struct ref_states *states)
 856{
 857        string_list_clear(&states->new, 0);
 858        string_list_clear(&states->stale, 1);
 859        string_list_clear(&states->tracked, 0);
 860        string_list_clear(&states->heads, 0);
 861        string_list_clear_func(&states->push, clear_push_info);
 862}
 863
 864static int append_ref_to_tracked_list(const char *refname,
 865        const unsigned char *sha1, int flags, void *cb_data)
 866{
 867        struct ref_states *states = cb_data;
 868        struct refspec refspec;
 869
 870        if (flags & REF_ISSYMREF)
 871                return 0;
 872
 873        memset(&refspec, 0, sizeof(refspec));
 874        refspec.dst = (char *)refname;
 875        if (!remote_find_tracking(states->remote, &refspec))
 876                string_list_append(&states->tracked, abbrev_branch(refspec.src));
 877
 878        return 0;
 879}
 880
 881static int get_remote_ref_states(const char *name,
 882                                 struct ref_states *states,
 883                                 int query)
 884{
 885        struct transport *transport;
 886        const struct ref *remote_refs;
 887
 888        states->remote = remote_get(name);
 889        if (!states->remote)
 890                return error("No such remote: %s", name);
 891
 892        read_branches();
 893
 894        if (query) {
 895                transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 896                        states->remote->url[0] : NULL);
 897                remote_refs = transport_get_remote_refs(transport);
 898                transport_disconnect(transport);
 899
 900                states->queried = 1;
 901                if (query & GET_REF_STATES)
 902                        get_ref_states(remote_refs, states);
 903                if (query & GET_HEAD_NAMES)
 904                        get_head_names(remote_refs, states);
 905                if (query & GET_PUSH_REF_STATES)
 906                        get_push_ref_states(remote_refs, states);
 907        } else {
 908                for_each_ref(append_ref_to_tracked_list, states);
 909                sort_string_list(&states->tracked);
 910                get_push_ref_states_noquery(states);
 911        }
 912
 913        return 0;
 914}
 915
 916struct show_info {
 917        struct string_list *list;
 918        struct ref_states *states;
 919        int width, width2;
 920        int any_rebase;
 921};
 922
 923static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 924{
 925        struct show_info *info = cb_data;
 926        int n = strlen(item->string);
 927        if (n > info->width)
 928                info->width = n;
 929        string_list_insert(info->list, item->string);
 930        return 0;
 931}
 932
 933static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 934{
 935        struct show_info *info = cb_data;
 936        struct ref_states *states = info->states;
 937        const char *name = item->string;
 938
 939        if (states->queried) {
 940                const char *fmt = "%s";
 941                const char *arg = "";
 942                if (string_list_has_string(&states->new, name)) {
 943                        fmt = " new (next fetch will store in remotes/%s)";
 944                        arg = states->remote->name;
 945                } else if (string_list_has_string(&states->tracked, name))
 946                        arg = " tracked";
 947                else if (string_list_has_string(&states->stale, name))
 948                        arg = " stale (use 'git remote prune' to remove)";
 949                else
 950                        arg = " ???";
 951                printf("    %-*s", info->width, name);
 952                printf(fmt, arg);
 953                printf("\n");
 954        } else
 955                printf("    %s\n", name);
 956
 957        return 0;
 958}
 959
 960static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 961{
 962        struct show_info *show_info = cb_data;
 963        struct ref_states *states = show_info->states;
 964        struct branch_info *branch_info = branch_item->util;
 965        struct string_list_item *item;
 966        int n;
 967
 968        if (!branch_info->merge.nr || !branch_info->remote_name ||
 969            strcmp(states->remote->name, branch_info->remote_name))
 970                return 0;
 971        if ((n = strlen(branch_item->string)) > show_info->width)
 972                show_info->width = n;
 973        if (branch_info->rebase)
 974                show_info->any_rebase = 1;
 975
 976        item = string_list_insert(show_info->list, branch_item->string);
 977        item->util = branch_info;
 978
 979        return 0;
 980}
 981
 982static int show_local_info_item(struct string_list_item *item, void *cb_data)
 983{
 984        struct show_info *show_info = cb_data;
 985        struct branch_info *branch_info = item->util;
 986        struct string_list *merge = &branch_info->merge;
 987        const char *also;
 988        int i;
 989
 990        if (branch_info->rebase && branch_info->merge.nr > 1) {
 991                error("invalid branch.%s.merge; cannot rebase onto > 1 branch",
 992                        item->string);
 993                return 0;
 994        }
 995
 996        printf("    %-*s ", show_info->width, item->string);
 997        if (branch_info->rebase) {
 998                printf("rebases onto remote %s\n", merge->items[0].string);
 999                return 0;
1000        } else if (show_info->any_rebase) {
1001                printf(" merges with remote %s\n", merge->items[0].string);
1002                also = "    and with remote";
1003        } else {
1004                printf("merges with remote %s\n", merge->items[0].string);
1005                also = "   and with remote";
1006        }
1007        for (i = 1; i < merge->nr; i++)
1008                printf("    %-*s %s %s\n", show_info->width, "", also,
1009                       merge->items[i].string);
1010
1011        return 0;
1012}
1013
1014static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
1015{
1016        struct show_info *show_info = cb_data;
1017        struct push_info *push_info = push_item->util;
1018        struct string_list_item *item;
1019        int n;
1020        if ((n = strlen(push_item->string)) > show_info->width)
1021                show_info->width = n;
1022        if ((n = strlen(push_info->dest)) > show_info->width2)
1023                show_info->width2 = n;
1024        item = string_list_append(show_info->list, push_item->string);
1025        item->util = push_item->util;
1026        return 0;
1027}
1028
1029/*
1030 * Sorting comparison for a string list that has push_info
1031 * structs in its util field
1032 */
1033static int cmp_string_with_push(const void *va, const void *vb)
1034{
1035        const struct string_list_item *a = va;
1036        const struct string_list_item *b = vb;
1037        const struct push_info *a_push = a->util;
1038        const struct push_info *b_push = b->util;
1039        int cmp = strcmp(a->string, b->string);
1040        return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1041}
1042
1043static int show_push_info_item(struct string_list_item *item, void *cb_data)
1044{
1045        struct show_info *show_info = cb_data;
1046        struct push_info *push_info = item->util;
1047        char *src = item->string, *status = NULL;
1048
1049        switch (push_info->status) {
1050        case PUSH_STATUS_CREATE:
1051                status = "create";
1052                break;
1053        case PUSH_STATUS_DELETE:
1054                status = "delete";
1055                src = "(none)";
1056                break;
1057        case PUSH_STATUS_UPTODATE:
1058                status = "up to date";
1059                break;
1060        case PUSH_STATUS_FASTFORWARD:
1061                status = "fast-forwardable";
1062                break;
1063        case PUSH_STATUS_OUTOFDATE:
1064                status = "local out of date";
1065                break;
1066        case PUSH_STATUS_NOTQUERIED:
1067                break;
1068        }
1069        if (status)
1070                printf("    %-*s %s to %-*s (%s)\n", show_info->width, src,
1071                        push_info->forced ? "forces" : "pushes",
1072                        show_info->width2, push_info->dest, status);
1073        else
1074                printf("    %-*s %s to %s\n", show_info->width, src,
1075                        push_info->forced ? "forces" : "pushes",
1076                        push_info->dest);
1077        return 0;
1078}
1079
1080static int show(int argc, const char **argv)
1081{
1082        int no_query = 0, result = 0, query_flag = 0;
1083        struct option options[] = {
1084                OPT_BOOLEAN('n', NULL, &no_query, "do not query remotes"),
1085                OPT_END()
1086        };
1087        struct ref_states states;
1088        struct string_list info_list = STRING_LIST_INIT_NODUP;
1089        struct show_info info;
1090
1091        argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1092                             0);
1093
1094        if (argc < 1)
1095                return show_all();
1096
1097        if (!no_query)
1098                query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1099
1100        memset(&states, 0, sizeof(states));
1101        memset(&info, 0, sizeof(info));
1102        info.states = &states;
1103        info.list = &info_list;
1104        for (; argc; argc--, argv++) {
1105                int i;
1106                const char **url;
1107                int url_nr;
1108
1109                get_remote_ref_states(*argv, &states, query_flag);
1110
1111                printf("* remote %s\n", *argv);
1112                printf("  Fetch URL: %s\n", states.remote->url_nr > 0 ?
1113                        states.remote->url[0] : "(no URL)");
1114                if (states.remote->pushurl_nr) {
1115                        url = states.remote->pushurl;
1116                        url_nr = states.remote->pushurl_nr;
1117                } else {
1118                        url = states.remote->url;
1119                        url_nr = states.remote->url_nr;
1120                }
1121                for (i = 0; i < url_nr; i++)
1122                        printf("  Push  URL: %s\n", url[i]);
1123                if (!i)
1124                        printf("  Push  URL: %s\n", "(no URL)");
1125                if (no_query)
1126                        printf("  HEAD branch: (not queried)\n");
1127                else if (!states.heads.nr)
1128                        printf("  HEAD branch: (unknown)\n");
1129                else if (states.heads.nr == 1)
1130                        printf("  HEAD branch: %s\n", states.heads.items[0].string);
1131                else {
1132                        printf("  HEAD branch (remote HEAD is ambiguous,"
1133                               " may be one of the following):\n");
1134                        for (i = 0; i < states.heads.nr; i++)
1135                                printf("    %s\n", states.heads.items[i].string);
1136                }
1137
1138                /* remote branch info */
1139                info.width = 0;
1140                for_each_string_list(&states.new, add_remote_to_show_info, &info);
1141                for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1142                for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1143                if (info.list->nr)
1144                        printf("  Remote branch%s:%s\n",
1145                               info.list->nr > 1 ? "es" : "",
1146                                no_query ? " (status not queried)" : "");
1147                for_each_string_list(info.list, show_remote_info_item, &info);
1148                string_list_clear(info.list, 0);
1149
1150                /* git pull info */
1151                info.width = 0;
1152                info.any_rebase = 0;
1153                for_each_string_list(&branch_list, add_local_to_show_info, &info);
1154                if (info.list->nr)
1155                        printf("  Local branch%s configured for 'git pull':\n",
1156                               info.list->nr > 1 ? "es" : "");
1157                for_each_string_list(info.list, show_local_info_item, &info);
1158                string_list_clear(info.list, 0);
1159
1160                /* git push info */
1161                if (states.remote->mirror)
1162                        printf("  Local refs will be mirrored by 'git push'\n");
1163
1164                info.width = info.width2 = 0;
1165                for_each_string_list(&states.push, add_push_to_show_info, &info);
1166                qsort(info.list->items, info.list->nr,
1167                        sizeof(*info.list->items), cmp_string_with_push);
1168                if (info.list->nr)
1169                        printf("  Local ref%s configured for 'git push'%s:\n",
1170                                info.list->nr > 1 ? "s" : "",
1171                                no_query ? " (status not queried)" : "");
1172                for_each_string_list(info.list, show_push_info_item, &info);
1173                string_list_clear(info.list, 0);
1174
1175                free_remote_ref_states(&states);
1176        }
1177
1178        return result;
1179}
1180
1181static int set_head(int argc, const char **argv)
1182{
1183        int i, opt_a = 0, opt_d = 0, result = 0;
1184        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1185        char *head_name = NULL;
1186
1187        struct option options[] = {
1188                OPT_BOOLEAN('a', "auto", &opt_a,
1189                            "set refs/remotes/<name>/HEAD according to remote"),
1190                OPT_BOOLEAN('d', "delete", &opt_d,
1191                            "delete refs/remotes/<name>/HEAD"),
1192                OPT_END()
1193        };
1194        argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1195                             0);
1196        if (argc)
1197                strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1198
1199        if (!opt_a && !opt_d && argc == 2) {
1200                head_name = xstrdup(argv[1]);
1201        } else if (opt_a && !opt_d && argc == 1) {
1202                struct ref_states states;
1203                memset(&states, 0, sizeof(states));
1204                get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1205                if (!states.heads.nr)
1206                        result |= error("Cannot determine remote HEAD");
1207                else if (states.heads.nr > 1) {
1208                        result |= error("Multiple remote HEAD branches. "
1209                                        "Please choose one explicitly with:");
1210                        for (i = 0; i < states.heads.nr; i++)
1211                                fprintf(stderr, "  git remote set-head %s %s\n",
1212                                        argv[0], states.heads.items[i].string);
1213                } else
1214                        head_name = xstrdup(states.heads.items[0].string);
1215                free_remote_ref_states(&states);
1216        } else if (opt_d && !opt_a && argc == 1) {
1217                if (delete_ref(buf.buf, NULL, REF_NODEREF))
1218                        result |= error("Could not delete %s", buf.buf);
1219        } else
1220                usage_with_options(builtin_remote_sethead_usage, options);
1221
1222        if (head_name) {
1223                unsigned char sha1[20];
1224                strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1225                /* make sure it's valid */
1226                if (!resolve_ref(buf2.buf, sha1, 1, NULL))
1227                        result |= error("Not a valid ref: %s", buf2.buf);
1228                else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1229                        result |= error("Could not setup %s", buf.buf);
1230                if (opt_a)
1231                        printf("%s/HEAD set to %s\n", argv[0], head_name);
1232                free(head_name);
1233        }
1234
1235        strbuf_release(&buf);
1236        strbuf_release(&buf2);
1237        return result;
1238}
1239
1240static int prune(int argc, const char **argv)
1241{
1242        int dry_run = 0, result = 0;
1243        struct option options[] = {
1244                OPT__DRY_RUN(&dry_run, "dry run"),
1245                OPT_END()
1246        };
1247
1248        argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1249                             0);
1250
1251        if (argc < 1)
1252                usage_with_options(builtin_remote_prune_usage, options);
1253
1254        for (; argc; argc--, argv++)
1255                result |= prune_remote(*argv, dry_run);
1256
1257        return result;
1258}
1259
1260static int prune_remote(const char *remote, int dry_run)
1261{
1262        int result = 0, i;
1263        struct ref_states states;
1264        const char *dangling_msg = dry_run
1265                ? " %s will become dangling!\n"
1266                : " %s has become dangling!\n";
1267
1268        memset(&states, 0, sizeof(states));
1269        get_remote_ref_states(remote, &states, GET_REF_STATES);
1270
1271        if (states.stale.nr) {
1272                printf("Pruning %s\n", remote);
1273                printf("URL: %s\n",
1274                       states.remote->url_nr
1275                       ? states.remote->url[0]
1276                       : "(no URL)");
1277        }
1278
1279        for (i = 0; i < states.stale.nr; i++) {
1280                const char *refname = states.stale.items[i].util;
1281
1282                if (!dry_run)
1283                        result |= delete_ref(refname, NULL, 0);
1284
1285                printf(" * [%s] %s\n", dry_run ? "would prune" : "pruned",
1286                       abbrev_ref(refname, "refs/remotes/"));
1287                warn_dangling_symref(stdout, dangling_msg, refname);
1288        }
1289
1290        free_remote_ref_states(&states);
1291        return result;
1292}
1293
1294static int get_remote_default(const char *key, const char *value, void *priv)
1295{
1296        if (strcmp(key, "remotes.default") == 0) {
1297                int *found = priv;
1298                *found = 1;
1299        }
1300        return 0;
1301}
1302
1303static int update(int argc, const char **argv)
1304{
1305        int i, prune = 0;
1306        struct option options[] = {
1307                OPT_BOOLEAN('p', "prune", &prune,
1308                            "prune remotes after fetching"),
1309                OPT_END()
1310        };
1311        const char **fetch_argv;
1312        int fetch_argc = 0;
1313        int default_defined = 0;
1314
1315        fetch_argv = xmalloc(sizeof(char *) * (argc+5));
1316
1317        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1318                             PARSE_OPT_KEEP_ARGV0);
1319
1320        fetch_argv[fetch_argc++] = "fetch";
1321
1322        if (prune)
1323                fetch_argv[fetch_argc++] = "--prune";
1324        if (verbose)
1325                fetch_argv[fetch_argc++] = "-v";
1326        fetch_argv[fetch_argc++] = "--multiple";
1327        if (argc < 2)
1328                fetch_argv[fetch_argc++] = "default";
1329        for (i = 1; i < argc; i++)
1330                fetch_argv[fetch_argc++] = argv[i];
1331
1332        if (strcmp(fetch_argv[fetch_argc-1], "default") == 0) {
1333                git_config(get_remote_default, &default_defined);
1334                if (!default_defined)
1335                        fetch_argv[fetch_argc-1] = "--all";
1336        }
1337
1338        fetch_argv[fetch_argc] = NULL;
1339
1340        return run_command_v_opt(fetch_argv, RUN_GIT_CMD);
1341}
1342
1343static int remove_all_fetch_refspecs(const char *remote, const char *key)
1344{
1345        return git_config_set_multivar(key, NULL, NULL, 1);
1346}
1347
1348static int add_branches(struct remote *remote, const char **branches,
1349                        const char *key)
1350{
1351        const char *remotename = remote->name;
1352        int mirror = remote->mirror;
1353        struct strbuf refspec = STRBUF_INIT;
1354
1355        for (; *branches; branches++)
1356                if (add_branch(key, *branches, remotename, mirror, &refspec)) {
1357                        strbuf_release(&refspec);
1358                        return 1;
1359                }
1360
1361        strbuf_release(&refspec);
1362        return 0;
1363}
1364
1365static int set_remote_branches(const char *remotename, const char **branches,
1366                                int add_mode)
1367{
1368        struct strbuf key = STRBUF_INIT;
1369        struct remote *remote;
1370
1371        strbuf_addf(&key, "remote.%s.fetch", remotename);
1372
1373        if (!remote_is_configured(remotename))
1374                die("No such remote '%s'", remotename);
1375        remote = remote_get(remotename);
1376
1377        if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
1378                strbuf_release(&key);
1379                return 1;
1380        }
1381        if (add_branches(remote, branches, key.buf)) {
1382                strbuf_release(&key);
1383                return 1;
1384        }
1385
1386        strbuf_release(&key);
1387        return 0;
1388}
1389
1390static int set_branches(int argc, const char **argv)
1391{
1392        int add_mode = 0;
1393        struct option options[] = {
1394                OPT_BOOLEAN('\0', "add", &add_mode, "add branch"),
1395                OPT_END()
1396        };
1397
1398        argc = parse_options(argc, argv, NULL, options,
1399                             builtin_remote_setbranches_usage, 0);
1400        if (argc == 0) {
1401                error("no remote specified");
1402                usage_with_options(builtin_remote_setbranches_usage, options);
1403        }
1404        argv[argc] = NULL;
1405
1406        return set_remote_branches(argv[0], argv + 1, add_mode);
1407}
1408
1409static int set_url(int argc, const char **argv)
1410{
1411        int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1412        int matches = 0, negative_matches = 0;
1413        const char *remotename = NULL;
1414        const char *newurl = NULL;
1415        const char *oldurl = NULL;
1416        struct remote *remote;
1417        regex_t old_regex;
1418        const char **urlset;
1419        int urlset_nr;
1420        struct strbuf name_buf = STRBUF_INIT;
1421        struct option options[] = {
1422                OPT_BOOLEAN('\0', "push", &push_mode,
1423                            "manipulate push URLs"),
1424                OPT_BOOLEAN('\0', "add", &add_mode,
1425                            "add URL"),
1426                OPT_BOOLEAN('\0', "delete", &delete_mode,
1427                            "delete URLs"),
1428                OPT_END()
1429        };
1430        argc = parse_options(argc, argv, NULL, options, builtin_remote_seturl_usage,
1431                             PARSE_OPT_KEEP_ARGV0);
1432
1433        if (add_mode && delete_mode)
1434                die("--add --delete doesn't make sense");
1435
1436        if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1437                usage_with_options(builtin_remote_seturl_usage, options);
1438
1439        remotename = argv[1];
1440        newurl = argv[2];
1441        if (argc > 3)
1442                oldurl = argv[3];
1443
1444        if (delete_mode)
1445                oldurl = newurl;
1446
1447        if (!remote_is_configured(remotename))
1448                die("No such remote '%s'", remotename);
1449        remote = remote_get(remotename);
1450
1451        if (push_mode) {
1452                strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1453                urlset = remote->pushurl;
1454                urlset_nr = remote->pushurl_nr;
1455        } else {
1456                strbuf_addf(&name_buf, "remote.%s.url", remotename);
1457                urlset = remote->url;
1458                urlset_nr = remote->url_nr;
1459        }
1460
1461        /* Special cases that add new entry. */
1462        if ((!oldurl && !delete_mode) || add_mode) {
1463                if (add_mode)
1464                        git_config_set_multivar(name_buf.buf, newurl,
1465                                "^$", 0);
1466                else
1467                        git_config_set(name_buf.buf, newurl);
1468                strbuf_release(&name_buf);
1469                return 0;
1470        }
1471
1472        /* Old URL specified. Demand that one matches. */
1473        if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1474                die("Invalid old URL pattern: %s", oldurl);
1475
1476        for (i = 0; i < urlset_nr; i++)
1477                if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1478                        matches++;
1479                else
1480                        negative_matches++;
1481        if (!delete_mode && !matches)
1482                die("No such URL found: %s", oldurl);
1483        if (delete_mode && !negative_matches && !push_mode)
1484                die("Will not delete all non-push URLs");
1485
1486        regfree(&old_regex);
1487
1488        if (!delete_mode)
1489                git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1490        else
1491                git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1492        return 0;
1493}
1494
1495static int get_one_entry(struct remote *remote, void *priv)
1496{
1497        struct string_list *list = priv;
1498        struct strbuf url_buf = STRBUF_INIT;
1499        const char **url;
1500        int i, url_nr;
1501
1502        if (remote->url_nr > 0) {
1503                strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1504                string_list_append(list, remote->name)->util =
1505                                strbuf_detach(&url_buf, NULL);
1506        } else
1507                string_list_append(list, remote->name)->util = NULL;
1508        if (remote->pushurl_nr) {
1509                url = remote->pushurl;
1510                url_nr = remote->pushurl_nr;
1511        } else {
1512                url = remote->url;
1513                url_nr = remote->url_nr;
1514        }
1515        for (i = 0; i < url_nr; i++)
1516        {
1517                strbuf_addf(&url_buf, "%s (push)", url[i]);
1518                string_list_append(list, remote->name)->util =
1519                                strbuf_detach(&url_buf, NULL);
1520        }
1521
1522        return 0;
1523}
1524
1525static int show_all(void)
1526{
1527        struct string_list list = STRING_LIST_INIT_NODUP;
1528        int result;
1529
1530        list.strdup_strings = 1;
1531        result = for_each_remote(get_one_entry, &list);
1532
1533        if (!result) {
1534                int i;
1535
1536                sort_string_list(&list);
1537                for (i = 0; i < list.nr; i++) {
1538                        struct string_list_item *item = list.items + i;
1539                        if (verbose)
1540                                printf("%s\t%s\n", item->string,
1541                                        item->util ? (const char *)item->util : "");
1542                        else {
1543                                if (i && !strcmp((item - 1)->string, item->string))
1544                                        continue;
1545                                printf("%s\n", item->string);
1546                        }
1547                }
1548        }
1549        string_list_clear(&list, 1);
1550        return result;
1551}
1552
1553int cmd_remote(int argc, const char **argv, const char *prefix)
1554{
1555        struct option options[] = {
1556                OPT__VERBOSE(&verbose, "be verbose; must be placed before a subcommand"),
1557                OPT_END()
1558        };
1559        int result;
1560
1561        argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1562                PARSE_OPT_STOP_AT_NON_OPTION);
1563
1564        if (argc < 1)
1565                result = show_all();
1566        else if (!strcmp(argv[0], "add"))
1567                result = add(argc, argv);
1568        else if (!strcmp(argv[0], "rename"))
1569                result = mv(argc, argv);
1570        else if (!strcmp(argv[0], "rm"))
1571                result = rm(argc, argv);
1572        else if (!strcmp(argv[0], "set-head"))
1573                result = set_head(argc, argv);
1574        else if (!strcmp(argv[0], "set-branches"))
1575                result = set_branches(argc, argv);
1576        else if (!strcmp(argv[0], "set-url"))
1577                result = set_url(argc, argv);
1578        else if (!strcmp(argv[0], "show"))
1579                result = show(argc, argv);
1580        else if (!strcmp(argv[0], "prune"))
1581                result = prune(argc, argv);
1582        else if (!strcmp(argv[0], "update"))
1583                result = update(argc, argv);
1584        else {
1585                error("Unknown subcommand: %s", argv[0]);
1586                usage_with_options(builtin_remote_usage, options);
1587        }
1588
1589        return result ? 1 : 0;
1590}