Andrew's git / gitweb.git / builtin/remote.c
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builtin / remote.con commit i18n: git-fetch split up "(non-fast-forward)" message (321a153)
   1#include "cache.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] <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 opt_parse_track(const struct option *opt, const char *arg, int not)
  92{
  93        struct string_list *list = opt->value;
  94        if (not)
  95                string_list_clear(list, 0);
  96        else
  97                string_list_append(list, arg);
  98        return 0;
  99}
 100
 101static int fetch_remote(const char *name)
 102{
 103        const char *argv[] = { "fetch", name, NULL, NULL };
 104        if (verbose) {
 105                argv[1] = "-v";
 106                argv[2] = name;
 107        }
 108        printf("Updating %s\n", name);
 109        if (run_command_v_opt(argv, RUN_GIT_CMD))
 110                return error("Could not fetch %s", name);
 111        return 0;
 112}
 113
 114enum {
 115        TAGS_UNSET = 0,
 116        TAGS_DEFAULT = 1,
 117        TAGS_SET = 2
 118};
 119
 120static int add_branch(const char *key, const char *branchname,
 121                const char *remotename, int mirror, struct strbuf *tmp)
 122{
 123        strbuf_reset(tmp);
 124        strbuf_addch(tmp, '+');
 125        if (mirror)
 126                strbuf_addf(tmp, "refs/%s:refs/%s",
 127                                branchname, branchname);
 128        else
 129                strbuf_addf(tmp, "refs/heads/%s:refs/remotes/%s/%s",
 130                                branchname, remotename, branchname);
 131        return git_config_set_multivar(key, tmp->buf, "^$", 0);
 132}
 133
 134static int add(int argc, const char **argv)
 135{
 136        int fetch = 0, mirror = 0, fetch_tags = TAGS_DEFAULT;
 137        struct string_list track = STRING_LIST_INIT_NODUP;
 138        const char *master = NULL;
 139        struct remote *remote;
 140        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
 141        const char *name, *url;
 142        int i;
 143
 144        struct option options[] = {
 145                OPT_BOOLEAN('f', "fetch", &fetch, "fetch the remote branches"),
 146                OPT_SET_INT(0, "tags", &fetch_tags,
 147                            "import all tags and associated objects when fetching",
 148                            TAGS_SET),
 149                OPT_SET_INT(0, NULL, &fetch_tags,
 150                            "or do not fetch any tag at all (--no-tags)", TAGS_UNSET),
 151                OPT_CALLBACK('t', "track", &track, "branch",
 152                        "branch(es) to track", opt_parse_track),
 153                OPT_STRING('m', "master", &master, "branch", "master branch"),
 154                OPT_BOOLEAN(0, "mirror", &mirror, "no separate remotes"),
 155                OPT_END()
 156        };
 157
 158        argc = parse_options(argc, argv, NULL, options, builtin_remote_add_usage,
 159                             0);
 160
 161        if (argc < 2)
 162                usage_with_options(builtin_remote_add_usage, options);
 163
 164        name = argv[0];
 165        url = argv[1];
 166
 167        remote = remote_get(name);
 168        if (remote && (remote->url_nr > 1 || strcmp(name, remote->url[0]) ||
 169                        remote->fetch_refspec_nr))
 170                die("remote %s already exists.", name);
 171
 172        strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
 173        if (!valid_fetch_refspec(buf2.buf))
 174                die("'%s' is not a valid remote name", name);
 175
 176        strbuf_addf(&buf, "remote.%s.url", name);
 177        if (git_config_set(buf.buf, url))
 178                return 1;
 179
 180        strbuf_reset(&buf);
 181        strbuf_addf(&buf, "remote.%s.fetch", name);
 182
 183        if (track.nr == 0)
 184                string_list_append(&track, "*");
 185        for (i = 0; i < track.nr; i++) {
 186                if (add_branch(buf.buf, track.items[i].string,
 187                                name, mirror, &buf2))
 188                        return 1;
 189        }
 190
 191        if (mirror) {
 192                strbuf_reset(&buf);
 193                strbuf_addf(&buf, "remote.%s.mirror", name);
 194                if (git_config_set(buf.buf, "true"))
 195                        return 1;
 196        }
 197
 198        if (fetch_tags != TAGS_DEFAULT) {
 199                strbuf_reset(&buf);
 200                strbuf_addf(&buf, "remote.%s.tagopt", name);
 201                if (git_config_set(buf.buf,
 202                        fetch_tags == TAGS_SET ? "--tags" : "--no-tags"))
 203                        return 1;
 204        }
 205
 206        if (fetch && fetch_remote(name))
 207                return 1;
 208
 209        if (master) {
 210                strbuf_reset(&buf);
 211                strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
 212
 213                strbuf_reset(&buf2);
 214                strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
 215
 216                if (create_symref(buf.buf, buf2.buf, "remote add"))
 217                        return error("Could not setup master '%s'", master);
 218        }
 219
 220        strbuf_release(&buf);
 221        strbuf_release(&buf2);
 222        string_list_clear(&track, 0);
 223
 224        return 0;
 225}
 226
 227struct branch_info {
 228        char *remote_name;
 229        struct string_list merge;
 230        int rebase;
 231};
 232
 233static struct string_list branch_list;
 234
 235static const char *abbrev_ref(const char *name, const char *prefix)
 236{
 237        const char *abbrev = skip_prefix(name, prefix);
 238        if (abbrev)
 239                return abbrev;
 240        return name;
 241}
 242#define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 243
 244static int config_read_branches(const char *key, const char *value, void *cb)
 245{
 246        if (!prefixcmp(key, "branch.")) {
 247                const char *orig_key = key;
 248                char *name;
 249                struct string_list_item *item;
 250                struct branch_info *info;
 251                enum { REMOTE, MERGE, REBASE } type;
 252
 253                key += 7;
 254                if (!postfixcmp(key, ".remote")) {
 255                        name = xstrndup(key, strlen(key) - 7);
 256                        type = REMOTE;
 257                } else if (!postfixcmp(key, ".merge")) {
 258                        name = xstrndup(key, strlen(key) - 6);
 259                        type = MERGE;
 260                } else if (!postfixcmp(key, ".rebase")) {
 261                        name = xstrndup(key, strlen(key) - 7);
 262                        type = REBASE;
 263                } else
 264                        return 0;
 265
 266                item = string_list_insert(&branch_list, name);
 267
 268                if (!item->util)
 269                        item->util = xcalloc(sizeof(struct branch_info), 1);
 270                info = item->util;
 271                if (type == REMOTE) {
 272                        if (info->remote_name)
 273                                warning("more than one %s", orig_key);
 274                        info->remote_name = xstrdup(value);
 275                } else if (type == MERGE) {
 276                        char *space = strchr(value, ' ');
 277                        value = abbrev_branch(value);
 278                        while (space) {
 279                                char *merge;
 280                                merge = xstrndup(value, space - value);
 281                                string_list_append(&info->merge, merge);
 282                                value = abbrev_branch(space + 1);
 283                                space = strchr(value, ' ');
 284                        }
 285                        string_list_append(&info->merge, xstrdup(value));
 286                } else
 287                        info->rebase = git_config_bool(orig_key, value);
 288        }
 289        return 0;
 290}
 291
 292static void read_branches(void)
 293{
 294        if (branch_list.nr)
 295                return;
 296        git_config(config_read_branches, NULL);
 297}
 298
 299struct ref_states {
 300        struct remote *remote;
 301        struct string_list new, stale, tracked, heads, push;
 302        int queried;
 303};
 304
 305static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 306{
 307        struct ref *fetch_map = NULL, **tail = &fetch_map;
 308        struct ref *ref, *stale_refs;
 309        int i;
 310
 311        for (i = 0; i < states->remote->fetch_refspec_nr; i++)
 312                if (get_fetch_map(remote_refs, states->remote->fetch + i, &tail, 1))
 313                        die("Could not get fetch map for refspec %s",
 314                                states->remote->fetch_refspec[i]);
 315
 316        states->new.strdup_strings = 1;
 317        states->tracked.strdup_strings = 1;
 318        states->stale.strdup_strings = 1;
 319        for (ref = fetch_map; ref; ref = ref->next) {
 320                unsigned char sha1[20];
 321                if (!ref->peer_ref || read_ref(ref->peer_ref->name, sha1))
 322                        string_list_append(&states->new, abbrev_branch(ref->name));
 323                else
 324                        string_list_append(&states->tracked, abbrev_branch(ref->name));
 325        }
 326        stale_refs = get_stale_heads(states->remote, fetch_map);
 327        for (ref = stale_refs; ref; ref = ref->next) {
 328                struct string_list_item *item =
 329                        string_list_append(&states->stale, abbrev_branch(ref->name));
 330                item->util = xstrdup(ref->name);
 331        }
 332        free_refs(stale_refs);
 333        free_refs(fetch_map);
 334
 335        sort_string_list(&states->new);
 336        sort_string_list(&states->tracked);
 337        sort_string_list(&states->stale);
 338
 339        return 0;
 340}
 341
 342struct push_info {
 343        char *dest;
 344        int forced;
 345        enum {
 346                PUSH_STATUS_CREATE = 0,
 347                PUSH_STATUS_DELETE,
 348                PUSH_STATUS_UPTODATE,
 349                PUSH_STATUS_FASTFORWARD,
 350                PUSH_STATUS_OUTOFDATE,
 351                PUSH_STATUS_NOTQUERIED
 352        } status;
 353};
 354
 355static int get_push_ref_states(const struct ref *remote_refs,
 356        struct ref_states *states)
 357{
 358        struct remote *remote = states->remote;
 359        struct ref *ref, *local_refs, *push_map;
 360        if (remote->mirror)
 361                return 0;
 362
 363        local_refs = get_local_heads();
 364        push_map = copy_ref_list(remote_refs);
 365
 366        match_refs(local_refs, &push_map, remote->push_refspec_nr,
 367                   remote->push_refspec, MATCH_REFS_NONE);
 368
 369        states->push.strdup_strings = 1;
 370        for (ref = push_map; ref; ref = ref->next) {
 371                struct string_list_item *item;
 372                struct push_info *info;
 373
 374                if (!ref->peer_ref)
 375                        continue;
 376                hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
 377
 378                item = string_list_append(&states->push,
 379                                          abbrev_branch(ref->peer_ref->name));
 380                item->util = xcalloc(sizeof(struct push_info), 1);
 381                info = item->util;
 382                info->forced = ref->force;
 383                info->dest = xstrdup(abbrev_branch(ref->name));
 384
 385                if (is_null_sha1(ref->new_sha1)) {
 386                        info->status = PUSH_STATUS_DELETE;
 387                } else if (!hashcmp(ref->old_sha1, ref->new_sha1))
 388                        info->status = PUSH_STATUS_UPTODATE;
 389                else if (is_null_sha1(ref->old_sha1))
 390                        info->status = PUSH_STATUS_CREATE;
 391                else if (has_sha1_file(ref->old_sha1) &&
 392                         ref_newer(ref->new_sha1, ref->old_sha1))
 393                        info->status = PUSH_STATUS_FASTFORWARD;
 394                else
 395                        info->status = PUSH_STATUS_OUTOFDATE;
 396        }
 397        free_refs(local_refs);
 398        free_refs(push_map);
 399        return 0;
 400}
 401
 402static int get_push_ref_states_noquery(struct ref_states *states)
 403{
 404        int i;
 405        struct remote *remote = states->remote;
 406        struct string_list_item *item;
 407        struct push_info *info;
 408
 409        if (remote->mirror)
 410                return 0;
 411
 412        states->push.strdup_strings = 1;
 413        if (!remote->push_refspec_nr) {
 414                item = string_list_append(&states->push, "(matching)");
 415                info = item->util = xcalloc(sizeof(struct push_info), 1);
 416                info->status = PUSH_STATUS_NOTQUERIED;
 417                info->dest = xstrdup(item->string);
 418        }
 419        for (i = 0; i < remote->push_refspec_nr; i++) {
 420                struct refspec *spec = remote->push + i;
 421                if (spec->matching)
 422                        item = string_list_append(&states->push, "(matching)");
 423                else if (strlen(spec->src))
 424                        item = string_list_append(&states->push, spec->src);
 425                else
 426                        item = string_list_append(&states->push, "(delete)");
 427
 428                info = item->util = xcalloc(sizeof(struct push_info), 1);
 429                info->forced = spec->force;
 430                info->status = PUSH_STATUS_NOTQUERIED;
 431                info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 432        }
 433        return 0;
 434}
 435
 436static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 437{
 438        struct ref *ref, *matches;
 439        struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 440        struct refspec refspec;
 441
 442        refspec.force = 0;
 443        refspec.pattern = 1;
 444        refspec.src = refspec.dst = "refs/heads/*";
 445        states->heads.strdup_strings = 1;
 446        get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 447        matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 448                                    fetch_map, 1);
 449        for (ref = matches; ref; ref = ref->next)
 450                string_list_append(&states->heads, abbrev_branch(ref->name));
 451
 452        free_refs(fetch_map);
 453        free_refs(matches);
 454
 455        return 0;
 456}
 457
 458struct known_remote {
 459        struct known_remote *next;
 460        struct remote *remote;
 461};
 462
 463struct known_remotes {
 464        struct remote *to_delete;
 465        struct known_remote *list;
 466};
 467
 468static int add_known_remote(struct remote *remote, void *cb_data)
 469{
 470        struct known_remotes *all = cb_data;
 471        struct known_remote *r;
 472
 473        if (!strcmp(all->to_delete->name, remote->name))
 474                return 0;
 475
 476        r = xmalloc(sizeof(*r));
 477        r->remote = remote;
 478        r->next = all->list;
 479        all->list = r;
 480        return 0;
 481}
 482
 483struct branches_for_remote {
 484        struct remote *remote;
 485        struct string_list *branches, *skipped;
 486        struct known_remotes *keep;
 487};
 488
 489static int add_branch_for_removal(const char *refname,
 490        const unsigned char *sha1, int flags, void *cb_data)
 491{
 492        struct branches_for_remote *branches = cb_data;
 493        struct refspec refspec;
 494        struct string_list_item *item;
 495        struct known_remote *kr;
 496
 497        memset(&refspec, 0, sizeof(refspec));
 498        refspec.dst = (char *)refname;
 499        if (remote_find_tracking(branches->remote, &refspec))
 500                return 0;
 501
 502        /* don't delete a branch if another remote also uses it */
 503        for (kr = branches->keep->list; kr; kr = kr->next) {
 504                memset(&refspec, 0, sizeof(refspec));
 505                refspec.dst = (char *)refname;
 506                if (!remote_find_tracking(kr->remote, &refspec))
 507                        return 0;
 508        }
 509
 510        /* don't delete non-remote-tracking refs */
 511        if (prefixcmp(refname, "refs/remotes")) {
 512                /* advise user how to delete local branches */
 513                if (!prefixcmp(refname, "refs/heads/"))
 514                        string_list_append(branches->skipped,
 515                                           abbrev_branch(refname));
 516                /* silently skip over other non-remote refs */
 517                return 0;
 518        }
 519
 520        /* make sure that symrefs are deleted */
 521        if (flags & REF_ISSYMREF)
 522                return unlink(git_path("%s", refname));
 523
 524        item = string_list_append(branches->branches, refname);
 525        item->util = xmalloc(20);
 526        hashcpy(item->util, sha1);
 527
 528        return 0;
 529}
 530
 531struct rename_info {
 532        const char *old;
 533        const char *new;
 534        struct string_list *remote_branches;
 535};
 536
 537static int read_remote_branches(const char *refname,
 538        const unsigned char *sha1, int flags, void *cb_data)
 539{
 540        struct rename_info *rename = cb_data;
 541        struct strbuf buf = STRBUF_INIT;
 542        struct string_list_item *item;
 543        int flag;
 544        unsigned char orig_sha1[20];
 545        const char *symref;
 546
 547        strbuf_addf(&buf, "refs/remotes/%s", rename->old);
 548        if (!prefixcmp(refname, buf.buf)) {
 549                item = string_list_append(rename->remote_branches, xstrdup(refname));
 550                symref = resolve_ref(refname, orig_sha1, 1, &flag);
 551                if (flag & REF_ISSYMREF)
 552                        item->util = xstrdup(symref);
 553                else
 554                        item->util = NULL;
 555        }
 556
 557        return 0;
 558}
 559
 560static int migrate_file(struct remote *remote)
 561{
 562        struct strbuf buf = STRBUF_INIT;
 563        int i;
 564        char *path = NULL;
 565
 566        strbuf_addf(&buf, "remote.%s.url", remote->name);
 567        for (i = 0; i < remote->url_nr; i++)
 568                if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0))
 569                        return error("Could not append '%s' to '%s'",
 570                                        remote->url[i], buf.buf);
 571        strbuf_reset(&buf);
 572        strbuf_addf(&buf, "remote.%s.push", remote->name);
 573        for (i = 0; i < remote->push_refspec_nr; i++)
 574                if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0))
 575                        return error("Could not append '%s' to '%s'",
 576                                        remote->push_refspec[i], buf.buf);
 577        strbuf_reset(&buf);
 578        strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 579        for (i = 0; i < remote->fetch_refspec_nr; i++)
 580                if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0))
 581                        return error("Could not append '%s' to '%s'",
 582                                        remote->fetch_refspec[i], buf.buf);
 583        if (remote->origin == REMOTE_REMOTES)
 584                path = git_path("remotes/%s", remote->name);
 585        else if (remote->origin == REMOTE_BRANCHES)
 586                path = git_path("branches/%s", remote->name);
 587        if (path)
 588                unlink_or_warn(path);
 589        return 0;
 590}
 591
 592static int mv(int argc, const char **argv)
 593{
 594        struct option options[] = {
 595                OPT_END()
 596        };
 597        struct remote *oldremote, *newremote;
 598        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT;
 599        struct string_list remote_branches = STRING_LIST_INIT_NODUP;
 600        struct rename_info rename;
 601        int i;
 602
 603        if (argc != 3)
 604                usage_with_options(builtin_remote_rename_usage, options);
 605
 606        rename.old = argv[1];
 607        rename.new = argv[2];
 608        rename.remote_branches = &remote_branches;
 609
 610        oldremote = remote_get(rename.old);
 611        if (!oldremote)
 612                die("No such remote: %s", rename.old);
 613
 614        if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
 615                return migrate_file(oldremote);
 616
 617        newremote = remote_get(rename.new);
 618        if (newremote && (newremote->url_nr > 1 || newremote->fetch_refspec_nr))
 619                die("remote %s already exists.", rename.new);
 620
 621        strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
 622        if (!valid_fetch_refspec(buf.buf))
 623                die("'%s' is not a valid remote name", rename.new);
 624
 625        strbuf_reset(&buf);
 626        strbuf_addf(&buf, "remote.%s", rename.old);
 627        strbuf_addf(&buf2, "remote.%s", rename.new);
 628        if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 629                return error("Could not rename config section '%s' to '%s'",
 630                                buf.buf, buf2.buf);
 631
 632        strbuf_reset(&buf);
 633        strbuf_addf(&buf, "remote.%s.fetch", rename.new);
 634        if (git_config_set_multivar(buf.buf, NULL, NULL, 1))
 635                return error("Could not remove config section '%s'", buf.buf);
 636        for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 637                char *ptr;
 638
 639                strbuf_reset(&buf2);
 640                strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 641                ptr = strstr(buf2.buf, rename.old);
 642                if (ptr)
 643                        strbuf_splice(&buf2, ptr-buf2.buf, strlen(rename.old),
 644                                        rename.new, strlen(rename.new));
 645                if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 646                        return error("Could not append '%s'", buf.buf);
 647        }
 648
 649        read_branches();
 650        for (i = 0; i < branch_list.nr; i++) {
 651                struct string_list_item *item = branch_list.items + i;
 652                struct branch_info *info = item->util;
 653                if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 654                        strbuf_reset(&buf);
 655                        strbuf_addf(&buf, "branch.%s.remote", item->string);
 656                        if (git_config_set(buf.buf, rename.new)) {
 657                                return error("Could not set '%s'", buf.buf);
 658                        }
 659                }
 660        }
 661
 662        /*
 663         * First remove symrefs, then rename the rest, finally create
 664         * the new symrefs.
 665         */
 666        for_each_ref(read_remote_branches, &rename);
 667        for (i = 0; i < remote_branches.nr; i++) {
 668                struct string_list_item *item = remote_branches.items + i;
 669                int flag = 0;
 670                unsigned char sha1[20];
 671
 672                resolve_ref(item->string, sha1, 1, &flag);
 673                if (!(flag & REF_ISSYMREF))
 674                        continue;
 675                if (delete_ref(item->string, NULL, REF_NODEREF))
 676                        die("deleting '%s' failed", item->string);
 677        }
 678        for (i = 0; i < remote_branches.nr; i++) {
 679                struct string_list_item *item = remote_branches.items + i;
 680
 681                if (item->util)
 682                        continue;
 683                strbuf_reset(&buf);
 684                strbuf_addstr(&buf, item->string);
 685                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 686                                rename.new, strlen(rename.new));
 687                strbuf_reset(&buf2);
 688                strbuf_addf(&buf2, "remote: renamed %s to %s",
 689                                item->string, buf.buf);
 690                if (rename_ref(item->string, buf.buf, buf2.buf))
 691                        die("renaming '%s' failed", item->string);
 692        }
 693        for (i = 0; i < remote_branches.nr; i++) {
 694                struct string_list_item *item = remote_branches.items + i;
 695
 696                if (!item->util)
 697                        continue;
 698                strbuf_reset(&buf);
 699                strbuf_addstr(&buf, item->string);
 700                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 701                                rename.new, strlen(rename.new));
 702                strbuf_reset(&buf2);
 703                strbuf_addstr(&buf2, item->util);
 704                strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
 705                                rename.new, strlen(rename.new));
 706                strbuf_reset(&buf3);
 707                strbuf_addf(&buf3, "remote: renamed %s to %s",
 708                                item->string, buf.buf);
 709                if (create_symref(buf.buf, buf2.buf, buf3.buf))
 710                        die("creating '%s' failed", buf.buf);
 711        }
 712        return 0;
 713}
 714
 715static int remove_branches(struct string_list *branches)
 716{
 717        int i, result = 0;
 718        for (i = 0; i < branches->nr; i++) {
 719                struct string_list_item *item = branches->items + i;
 720                const char *refname = item->string;
 721                unsigned char *sha1 = item->util;
 722
 723                if (delete_ref(refname, sha1, 0))
 724                        result |= error("Could not remove branch %s", refname);
 725        }
 726        return result;
 727}
 728
 729static int rm(int argc, const char **argv)
 730{
 731        struct option options[] = {
 732                OPT_END()
 733        };
 734        struct remote *remote;
 735        struct strbuf buf = STRBUF_INIT;
 736        struct known_remotes known_remotes = { NULL, NULL };
 737        struct string_list branches = STRING_LIST_INIT_DUP;
 738        struct string_list skipped = STRING_LIST_INIT_DUP;
 739        struct branches_for_remote cb_data;
 740        int i, result;
 741
 742        memset(&cb_data, 0, sizeof(cb_data));
 743        cb_data.branches = &branches;
 744        cb_data.skipped = &skipped;
 745        cb_data.keep = &known_remotes;
 746
 747        if (argc != 2)
 748                usage_with_options(builtin_remote_rm_usage, options);
 749
 750        remote = remote_get(argv[1]);
 751        if (!remote)
 752                die("No such remote: %s", argv[1]);
 753
 754        known_remotes.to_delete = remote;
 755        for_each_remote(add_known_remote, &known_remotes);
 756
 757        strbuf_addf(&buf, "remote.%s", remote->name);
 758        if (git_config_rename_section(buf.buf, NULL) < 1)
 759                return error("Could not remove config section '%s'", buf.buf);
 760
 761        read_branches();
 762        for (i = 0; i < branch_list.nr; i++) {
 763                struct string_list_item *item = branch_list.items + i;
 764                struct branch_info *info = item->util;
 765                if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 766                        const char *keys[] = { "remote", "merge", NULL }, **k;
 767                        for (k = keys; *k; k++) {
 768                                strbuf_reset(&buf);
 769                                strbuf_addf(&buf, "branch.%s.%s",
 770                                                item->string, *k);
 771                                if (git_config_set(buf.buf, NULL)) {
 772                                        strbuf_release(&buf);
 773                                        return -1;
 774                                }
 775                        }
 776                }
 777        }
 778
 779        /*
 780         * We cannot just pass a function to for_each_ref() which deletes
 781         * the branches one by one, since for_each_ref() relies on cached
 782         * refs, which are invalidated when deleting a branch.
 783         */
 784        cb_data.remote = remote;
 785        result = for_each_ref(add_branch_for_removal, &cb_data);
 786        strbuf_release(&buf);
 787
 788        if (!result)
 789                result = remove_branches(&branches);
 790        string_list_clear(&branches, 1);
 791
 792        if (skipped.nr) {
 793                fprintf(stderr, skipped.nr == 1 ?
 794                        "Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 795                        "to delete it, use:\n" :
 796                        "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 797                        "to delete them, use:\n");
 798                for (i = 0; i < skipped.nr; i++)
 799                        fprintf(stderr, "  git branch -d %s\n",
 800                                skipped.items[i].string);
 801        }
 802        string_list_clear(&skipped, 0);
 803
 804        return result;
 805}
 806
 807static void clear_push_info(void *util, const char *string)
 808{
 809        struct push_info *info = util;
 810        free(info->dest);
 811        free(info);
 812}
 813
 814static void free_remote_ref_states(struct ref_states *states)
 815{
 816        string_list_clear(&states->new, 0);
 817        string_list_clear(&states->stale, 1);
 818        string_list_clear(&states->tracked, 0);
 819        string_list_clear(&states->heads, 0);
 820        string_list_clear_func(&states->push, clear_push_info);
 821}
 822
 823static int append_ref_to_tracked_list(const char *refname,
 824        const unsigned char *sha1, int flags, void *cb_data)
 825{
 826        struct ref_states *states = cb_data;
 827        struct refspec refspec;
 828
 829        if (flags & REF_ISSYMREF)
 830                return 0;
 831
 832        memset(&refspec, 0, sizeof(refspec));
 833        refspec.dst = (char *)refname;
 834        if (!remote_find_tracking(states->remote, &refspec))
 835                string_list_append(&states->tracked, abbrev_branch(refspec.src));
 836
 837        return 0;
 838}
 839
 840static int get_remote_ref_states(const char *name,
 841                                 struct ref_states *states,
 842                                 int query)
 843{
 844        struct transport *transport;
 845        const struct ref *remote_refs;
 846
 847        states->remote = remote_get(name);
 848        if (!states->remote)
 849                return error("No such remote: %s", name);
 850
 851        read_branches();
 852
 853        if (query) {
 854                transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 855                        states->remote->url[0] : NULL);
 856                remote_refs = transport_get_remote_refs(transport);
 857                transport_disconnect(transport);
 858
 859                states->queried = 1;
 860                if (query & GET_REF_STATES)
 861                        get_ref_states(remote_refs, states);
 862                if (query & GET_HEAD_NAMES)
 863                        get_head_names(remote_refs, states);
 864                if (query & GET_PUSH_REF_STATES)
 865                        get_push_ref_states(remote_refs, states);
 866        } else {
 867                for_each_ref(append_ref_to_tracked_list, states);
 868                sort_string_list(&states->tracked);
 869                get_push_ref_states_noquery(states);
 870        }
 871
 872        return 0;
 873}
 874
 875struct show_info {
 876        struct string_list *list;
 877        struct ref_states *states;
 878        int width, width2;
 879        int any_rebase;
 880};
 881
 882static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 883{
 884        struct show_info *info = cb_data;
 885        int n = strlen(item->string);
 886        if (n > info->width)
 887                info->width = n;
 888        string_list_insert(info->list, item->string);
 889        return 0;
 890}
 891
 892static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 893{
 894        struct show_info *info = cb_data;
 895        struct ref_states *states = info->states;
 896        const char *name = item->string;
 897
 898        if (states->queried) {
 899                const char *fmt = "%s";
 900                const char *arg = "";
 901                if (string_list_has_string(&states->new, name)) {
 902                        fmt = " new (next fetch will store in remotes/%s)";
 903                        arg = states->remote->name;
 904                } else if (string_list_has_string(&states->tracked, name))
 905                        arg = " tracked";
 906                else if (string_list_has_string(&states->stale, name))
 907                        arg = " stale (use 'git remote prune' to remove)";
 908                else
 909                        arg = " ???";
 910                printf("    %-*s", info->width, name);
 911                printf(fmt, arg);
 912                printf("\n");
 913        } else
 914                printf("    %s\n", name);
 915
 916        return 0;
 917}
 918
 919static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 920{
 921        struct show_info *show_info = cb_data;
 922        struct ref_states *states = show_info->states;
 923        struct branch_info *branch_info = branch_item->util;
 924        struct string_list_item *item;
 925        int n;
 926
 927        if (!branch_info->merge.nr || !branch_info->remote_name ||
 928            strcmp(states->remote->name, branch_info->remote_name))
 929                return 0;
 930        if ((n = strlen(branch_item->string)) > show_info->width)
 931                show_info->width = n;
 932        if (branch_info->rebase)
 933                show_info->any_rebase = 1;
 934
 935        item = string_list_insert(show_info->list, branch_item->string);
 936        item->util = branch_info;
 937
 938        return 0;
 939}
 940
 941static int show_local_info_item(struct string_list_item *item, void *cb_data)
 942{
 943        struct show_info *show_info = cb_data;
 944        struct branch_info *branch_info = item->util;
 945        struct string_list *merge = &branch_info->merge;
 946        const char *also;
 947        int i;
 948
 949        if (branch_info->rebase && branch_info->merge.nr > 1) {
 950                error("invalid branch.%s.merge; cannot rebase onto > 1 branch",
 951                        item->string);
 952                return 0;
 953        }
 954
 955        printf("    %-*s ", show_info->width, item->string);
 956        if (branch_info->rebase) {
 957                printf("rebases onto remote %s\n", merge->items[0].string);
 958                return 0;
 959        } else if (show_info->any_rebase) {
 960                printf(" merges with remote %s\n", merge->items[0].string);
 961                also = "    and with remote";
 962        } else {
 963                printf("merges with remote %s\n", merge->items[0].string);
 964                also = "   and with remote";
 965        }
 966        for (i = 1; i < merge->nr; i++)
 967                printf("    %-*s %s %s\n", show_info->width, "", also,
 968                       merge->items[i].string);
 969
 970        return 0;
 971}
 972
 973static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
 974{
 975        struct show_info *show_info = cb_data;
 976        struct push_info *push_info = push_item->util;
 977        struct string_list_item *item;
 978        int n;
 979        if ((n = strlen(push_item->string)) > show_info->width)
 980                show_info->width = n;
 981        if ((n = strlen(push_info->dest)) > show_info->width2)
 982                show_info->width2 = n;
 983        item = string_list_append(show_info->list, push_item->string);
 984        item->util = push_item->util;
 985        return 0;
 986}
 987
 988/*
 989 * Sorting comparison for a string list that has push_info
 990 * structs in its util field
 991 */
 992static int cmp_string_with_push(const void *va, const void *vb)
 993{
 994        const struct string_list_item *a = va;
 995        const struct string_list_item *b = vb;
 996        const struct push_info *a_push = a->util;
 997        const struct push_info *b_push = b->util;
 998        int cmp = strcmp(a->string, b->string);
 999        return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1000}
1001
1002static int show_push_info_item(struct string_list_item *item, void *cb_data)
1003{
1004        struct show_info *show_info = cb_data;
1005        struct push_info *push_info = item->util;
1006        char *src = item->string, *status = NULL;
1007
1008        switch (push_info->status) {
1009        case PUSH_STATUS_CREATE:
1010                status = "create";
1011                break;
1012        case PUSH_STATUS_DELETE:
1013                status = "delete";
1014                src = "(none)";
1015                break;
1016        case PUSH_STATUS_UPTODATE:
1017                status = "up to date";
1018                break;
1019        case PUSH_STATUS_FASTFORWARD:
1020                status = "fast-forwardable";
1021                break;
1022        case PUSH_STATUS_OUTOFDATE:
1023                status = "local out of date";
1024                break;
1025        case PUSH_STATUS_NOTQUERIED:
1026                break;
1027        }
1028        if (status)
1029                printf("    %-*s %s to %-*s (%s)\n", show_info->width, src,
1030                        push_info->forced ? "forces" : "pushes",
1031                        show_info->width2, push_info->dest, status);
1032        else
1033                printf("    %-*s %s to %s\n", show_info->width, src,
1034                        push_info->forced ? "forces" : "pushes",
1035                        push_info->dest);
1036        return 0;
1037}
1038
1039static int show(int argc, const char **argv)
1040{
1041        int no_query = 0, result = 0, query_flag = 0;
1042        struct option options[] = {
1043                OPT_BOOLEAN('n', NULL, &no_query, "do not query remotes"),
1044                OPT_END()
1045        };
1046        struct ref_states states;
1047        struct string_list info_list = STRING_LIST_INIT_NODUP;
1048        struct show_info info;
1049
1050        argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1051                             0);
1052
1053        if (argc < 1)
1054                return show_all();
1055
1056        if (!no_query)
1057                query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1058
1059        memset(&states, 0, sizeof(states));
1060        memset(&info, 0, sizeof(info));
1061        info.states = &states;
1062        info.list = &info_list;
1063        for (; argc; argc--, argv++) {
1064                int i;
1065                const char **url;
1066                int url_nr;
1067
1068                get_remote_ref_states(*argv, &states, query_flag);
1069
1070                printf("* remote %s\n", *argv);
1071                printf("  Fetch URL: %s\n", states.remote->url_nr > 0 ?
1072                        states.remote->url[0] : "(no URL)");
1073                if (states.remote->pushurl_nr) {
1074                        url = states.remote->pushurl;
1075                        url_nr = states.remote->pushurl_nr;
1076                } else {
1077                        url = states.remote->url;
1078                        url_nr = states.remote->url_nr;
1079                }
1080                for (i=0; i < url_nr; i++)
1081                        printf("  Push  URL: %s\n", url[i]);
1082                if (!i)
1083                        printf("  Push  URL: %s\n", "(no URL)");
1084                if (no_query)
1085                        printf("  HEAD branch: (not queried)\n");
1086                else if (!states.heads.nr)
1087                        printf("  HEAD branch: (unknown)\n");
1088                else if (states.heads.nr == 1)
1089                        printf("  HEAD branch: %s\n", states.heads.items[0].string);
1090                else {
1091                        printf("  HEAD branch (remote HEAD is ambiguous,"
1092                               " may be one of the following):\n");
1093                        for (i = 0; i < states.heads.nr; i++)
1094                                printf("    %s\n", states.heads.items[i].string);
1095                }
1096
1097                /* remote branch info */
1098                info.width = 0;
1099                for_each_string_list(&states.new, add_remote_to_show_info, &info);
1100                for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1101                for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1102                if (info.list->nr)
1103                        printf("  Remote branch%s:%s\n",
1104                               info.list->nr > 1 ? "es" : "",
1105                                no_query ? " (status not queried)" : "");
1106                for_each_string_list(info.list, show_remote_info_item, &info);
1107                string_list_clear(info.list, 0);
1108
1109                /* git pull info */
1110                info.width = 0;
1111                info.any_rebase = 0;
1112                for_each_string_list(&branch_list, add_local_to_show_info, &info);
1113                if (info.list->nr)
1114                        printf("  Local branch%s configured for 'git pull':\n",
1115                               info.list->nr > 1 ? "es" : "");
1116                for_each_string_list(info.list, show_local_info_item, &info);
1117                string_list_clear(info.list, 0);
1118
1119                /* git push info */
1120                if (states.remote->mirror)
1121                        printf("  Local refs will be mirrored by 'git push'\n");
1122
1123                info.width = info.width2 = 0;
1124                for_each_string_list(&states.push, add_push_to_show_info, &info);
1125                qsort(info.list->items, info.list->nr,
1126                        sizeof(*info.list->items), cmp_string_with_push);
1127                if (info.list->nr)
1128                        printf("  Local ref%s configured for 'git push'%s:\n",
1129                                info.list->nr > 1 ? "s" : "",
1130                                no_query ? " (status not queried)" : "");
1131                for_each_string_list(info.list, show_push_info_item, &info);
1132                string_list_clear(info.list, 0);
1133
1134                free_remote_ref_states(&states);
1135        }
1136
1137        return result;
1138}
1139
1140static int set_head(int argc, const char **argv)
1141{
1142        int i, opt_a = 0, opt_d = 0, result = 0;
1143        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1144        char *head_name = NULL;
1145
1146        struct option options[] = {
1147                OPT_BOOLEAN('a', "auto", &opt_a,
1148                            "set refs/remotes/<name>/HEAD according to remote"),
1149                OPT_BOOLEAN('d', "delete", &opt_d,
1150                            "delete refs/remotes/<name>/HEAD"),
1151                OPT_END()
1152        };
1153        argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1154                             0);
1155        if (argc)
1156                strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1157
1158        if (!opt_a && !opt_d && argc == 2) {
1159                head_name = xstrdup(argv[1]);
1160        } else if (opt_a && !opt_d && argc == 1) {
1161                struct ref_states states;
1162                memset(&states, 0, sizeof(states));
1163                get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1164                if (!states.heads.nr)
1165                        result |= error("Cannot determine remote HEAD");
1166                else if (states.heads.nr > 1) {
1167                        result |= error("Multiple remote HEAD branches. "
1168                                        "Please choose one explicitly with:");
1169                        for (i = 0; i < states.heads.nr; i++)
1170                                fprintf(stderr, "  git remote set-head %s %s\n",
1171                                        argv[0], states.heads.items[i].string);
1172                } else
1173                        head_name = xstrdup(states.heads.items[0].string);
1174                free_remote_ref_states(&states);
1175        } else if (opt_d && !opt_a && argc == 1) {
1176                if (delete_ref(buf.buf, NULL, REF_NODEREF))
1177                        result |= error("Could not delete %s", buf.buf);
1178        } else
1179                usage_with_options(builtin_remote_sethead_usage, options);
1180
1181        if (head_name) {
1182                unsigned char sha1[20];
1183                strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1184                /* make sure it's valid */
1185                if (!resolve_ref(buf2.buf, sha1, 1, NULL))
1186                        result |= error("Not a valid ref: %s", buf2.buf);
1187                else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1188                        result |= error("Could not setup %s", buf.buf);
1189                if (opt_a)
1190                        printf("%s/HEAD set to %s\n", argv[0], head_name);
1191                free(head_name);
1192        }
1193
1194        strbuf_release(&buf);
1195        strbuf_release(&buf2);
1196        return result;
1197}
1198
1199static int prune(int argc, const char **argv)
1200{
1201        int dry_run = 0, result = 0;
1202        struct option options[] = {
1203                OPT__DRY_RUN(&dry_run, "dry run"),
1204                OPT_END()
1205        };
1206
1207        argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1208                             0);
1209
1210        if (argc < 1)
1211                usage_with_options(builtin_remote_prune_usage, options);
1212
1213        for (; argc; argc--, argv++)
1214                result |= prune_remote(*argv, dry_run);
1215
1216        return result;
1217}
1218
1219static int prune_remote(const char *remote, int dry_run)
1220{
1221        int result = 0, i;
1222        struct ref_states states;
1223        const char *dangling_msg = dry_run
1224                ? " %s will become dangling!\n"
1225                : " %s has become dangling!\n";
1226
1227        memset(&states, 0, sizeof(states));
1228        get_remote_ref_states(remote, &states, GET_REF_STATES);
1229
1230        if (states.stale.nr) {
1231                printf("Pruning %s\n", remote);
1232                printf("URL: %s\n",
1233                       states.remote->url_nr
1234                       ? states.remote->url[0]
1235                       : "(no URL)");
1236        }
1237
1238        for (i = 0; i < states.stale.nr; i++) {
1239                const char *refname = states.stale.items[i].util;
1240
1241                if (!dry_run)
1242                        result |= delete_ref(refname, NULL, 0);
1243
1244                printf(" * [%s] %s\n", dry_run ? "would prune" : "pruned",
1245                       abbrev_ref(refname, "refs/remotes/"));
1246                warn_dangling_symref(stdout, dangling_msg, refname);
1247        }
1248
1249        free_remote_ref_states(&states);
1250        return result;
1251}
1252
1253static int get_remote_default(const char *key, const char *value, void *priv)
1254{
1255        if (strcmp(key, "remotes.default") == 0) {
1256                int *found = priv;
1257                *found = 1;
1258        }
1259        return 0;
1260}
1261
1262static int update(int argc, const char **argv)
1263{
1264        int i, prune = 0;
1265        struct option options[] = {
1266                OPT_BOOLEAN('p', "prune", &prune,
1267                            "prune remotes after fetching"),
1268                OPT_END()
1269        };
1270        const char **fetch_argv;
1271        int fetch_argc = 0;
1272        int default_defined = 0;
1273
1274        fetch_argv = xmalloc(sizeof(char *) * (argc+5));
1275
1276        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1277                             PARSE_OPT_KEEP_ARGV0);
1278
1279        fetch_argv[fetch_argc++] = "fetch";
1280
1281        if (prune)
1282                fetch_argv[fetch_argc++] = "--prune";
1283        if (verbose)
1284                fetch_argv[fetch_argc++] = "-v";
1285        fetch_argv[fetch_argc++] = "--multiple";
1286        if (argc < 2)
1287                fetch_argv[fetch_argc++] = "default";
1288        for (i = 1; i < argc; i++)
1289                fetch_argv[fetch_argc++] = argv[i];
1290
1291        if (strcmp(fetch_argv[fetch_argc-1], "default") == 0) {
1292                git_config(get_remote_default, &default_defined);
1293                if (!default_defined)
1294                        fetch_argv[fetch_argc-1] = "--all";
1295        }
1296
1297        fetch_argv[fetch_argc] = NULL;
1298
1299        return run_command_v_opt(fetch_argv, RUN_GIT_CMD);
1300}
1301
1302static int remove_all_fetch_refspecs(const char *remote, const char *key)
1303{
1304        return git_config_set_multivar(key, NULL, NULL, 1);
1305}
1306
1307static int add_branches(struct remote *remote, const char **branches,
1308                        const char *key)
1309{
1310        const char *remotename = remote->name;
1311        int mirror = remote->mirror;
1312        struct strbuf refspec = STRBUF_INIT;
1313
1314        for (; *branches; branches++)
1315                if (add_branch(key, *branches, remotename, mirror, &refspec)) {
1316                        strbuf_release(&refspec);
1317                        return 1;
1318                }
1319
1320        strbuf_release(&refspec);
1321        return 0;
1322}
1323
1324static int set_remote_branches(const char *remotename, const char **branches,
1325                                int add_mode)
1326{
1327        struct strbuf key = STRBUF_INIT;
1328        struct remote *remote;
1329
1330        strbuf_addf(&key, "remote.%s.fetch", remotename);
1331
1332        if (!remote_is_configured(remotename))
1333                die("No such remote '%s'", remotename);
1334        remote = remote_get(remotename);
1335
1336        if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
1337                strbuf_release(&key);
1338                return 1;
1339        }
1340        if (add_branches(remote, branches, key.buf)) {
1341                strbuf_release(&key);
1342                return 1;
1343        }
1344
1345        strbuf_release(&key);
1346        return 0;
1347}
1348
1349static int set_branches(int argc, const char **argv)
1350{
1351        int add_mode = 0;
1352        struct option options[] = {
1353                OPT_BOOLEAN('\0', "add", &add_mode, "add branch"),
1354                OPT_END()
1355        };
1356
1357        argc = parse_options(argc, argv, NULL, options,
1358                             builtin_remote_setbranches_usage, 0);
1359        if (argc == 0) {
1360                error("no remote specified");
1361                usage_with_options(builtin_remote_seturl_usage, options);
1362        }
1363        argv[argc] = NULL;
1364
1365        return set_remote_branches(argv[0], argv + 1, add_mode);
1366}
1367
1368static int set_url(int argc, const char **argv)
1369{
1370        int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1371        int matches = 0, negative_matches = 0;
1372        const char *remotename = NULL;
1373        const char *newurl = NULL;
1374        const char *oldurl = NULL;
1375        struct remote *remote;
1376        regex_t old_regex;
1377        const char **urlset;
1378        int urlset_nr;
1379        struct strbuf name_buf = STRBUF_INIT;
1380        struct option options[] = {
1381                OPT_BOOLEAN('\0', "push", &push_mode,
1382                            "manipulate push URLs"),
1383                OPT_BOOLEAN('\0', "add", &add_mode,
1384                            "add URL"),
1385                OPT_BOOLEAN('\0', "delete", &delete_mode,
1386                            "delete URLs"),
1387                OPT_END()
1388        };
1389        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1390                             PARSE_OPT_KEEP_ARGV0);
1391
1392        if (add_mode && delete_mode)
1393                die("--add --delete doesn't make sense");
1394
1395        if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1396                usage_with_options(builtin_remote_seturl_usage, options);
1397
1398        remotename = argv[1];
1399        newurl = argv[2];
1400        if (argc > 3)
1401                oldurl = argv[3];
1402
1403        if (delete_mode)
1404                oldurl = newurl;
1405
1406        if (!remote_is_configured(remotename))
1407                die("No such remote '%s'", remotename);
1408        remote = remote_get(remotename);
1409
1410        if (push_mode) {
1411                strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1412                urlset = remote->pushurl;
1413                urlset_nr = remote->pushurl_nr;
1414        } else {
1415                strbuf_addf(&name_buf, "remote.%s.url", remotename);
1416                urlset = remote->url;
1417                urlset_nr = remote->url_nr;
1418        }
1419
1420        /* Special cases that add new entry. */
1421        if ((!oldurl && !delete_mode) || add_mode) {
1422                if (add_mode)
1423                        git_config_set_multivar(name_buf.buf, newurl,
1424                                "^$", 0);
1425                else
1426                        git_config_set(name_buf.buf, newurl);
1427                strbuf_release(&name_buf);
1428                return 0;
1429        }
1430
1431        /* Old URL specified. Demand that one matches. */
1432        if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1433                die("Invalid old URL pattern: %s", oldurl);
1434
1435        for (i = 0; i < urlset_nr; i++)
1436                if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1437                        matches++;
1438                else
1439                        negative_matches++;
1440        if (!delete_mode && !matches)
1441                die("No such URL found: %s", oldurl);
1442        if (delete_mode && !negative_matches && !push_mode)
1443                die("Will not delete all non-push URLs");
1444
1445        regfree(&old_regex);
1446
1447        if (!delete_mode)
1448                git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1449        else
1450                git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1451        return 0;
1452}
1453
1454static int get_one_entry(struct remote *remote, void *priv)
1455{
1456        struct string_list *list = priv;
1457        struct strbuf url_buf = STRBUF_INIT;
1458        const char **url;
1459        int i, url_nr;
1460
1461        if (remote->url_nr > 0) {
1462                strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1463                string_list_append(list, remote->name)->util =
1464                                strbuf_detach(&url_buf, NULL);
1465        } else
1466                string_list_append(list, remote->name)->util = NULL;
1467        if (remote->pushurl_nr) {
1468                url = remote->pushurl;
1469                url_nr = remote->pushurl_nr;
1470        } else {
1471                url = remote->url;
1472                url_nr = remote->url_nr;
1473        }
1474        for (i = 0; i < url_nr; i++)
1475        {
1476                strbuf_addf(&url_buf, "%s (push)", url[i]);
1477                string_list_append(list, remote->name)->util =
1478                                strbuf_detach(&url_buf, NULL);
1479        }
1480
1481        return 0;
1482}
1483
1484static int show_all(void)
1485{
1486        struct string_list list = STRING_LIST_INIT_NODUP;
1487        int result;
1488
1489        list.strdup_strings = 1;
1490        result = for_each_remote(get_one_entry, &list);
1491
1492        if (!result) {
1493                int i;
1494
1495                sort_string_list(&list);
1496                for (i = 0; i < list.nr; i++) {
1497                        struct string_list_item *item = list.items + i;
1498                        if (verbose)
1499                                printf("%s\t%s\n", item->string,
1500                                        item->util ? (const char *)item->util : "");
1501                        else {
1502                                if (i && !strcmp((item - 1)->string, item->string))
1503                                        continue;
1504                                printf("%s\n", item->string);
1505                        }
1506                }
1507        }
1508        string_list_clear(&list, 1);
1509        return result;
1510}
1511
1512int cmd_remote(int argc, const char **argv, const char *prefix)
1513{
1514        struct option options[] = {
1515                OPT__VERBOSE(&verbose, "be verbose; must be placed before a subcommand"),
1516                OPT_END()
1517        };
1518        int result;
1519
1520        argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1521                PARSE_OPT_STOP_AT_NON_OPTION);
1522
1523        if (argc < 1)
1524                result = show_all();
1525        else if (!strcmp(argv[0], "add"))
1526                result = add(argc, argv);
1527        else if (!strcmp(argv[0], "rename"))
1528                result = mv(argc, argv);
1529        else if (!strcmp(argv[0], "rm"))
1530                result = rm(argc, argv);
1531        else if (!strcmp(argv[0], "set-head"))
1532                result = set_head(argc, argv);
1533        else if (!strcmp(argv[0], "set-branches"))
1534                result = set_branches(argc, argv);
1535        else if (!strcmp(argv[0], "set-url"))
1536                result = set_url(argc, argv);
1537        else if (!strcmp(argv[0], "show"))
1538                result = show(argc, argv);
1539        else if (!strcmp(argv[0], "prune"))
1540                result = prune(argc, argv);
1541        else if (!strcmp(argv[0], "update"))
1542                result = update(argc, argv);
1543        else {
1544                error("Unknown subcommand: %s", argv[0]);
1545                usage_with_options(builtin_remote_usage, options);
1546        }
1547
1548        return result ? 1 : 0;
1549}