Andrew's git / gitweb.git / builtin/remote.c
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builtin / remote.con commit remote: disallow some nonsensical option combinations (13fc2c1)
   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        if (mirror && master)
 165                die("specifying a master branch makes no sense with --mirror");
 166        if (mirror && track.nr)
 167                die("specifying branches to track makes no sense with --mirror");
 168
 169        name = argv[0];
 170        url = argv[1];
 171
 172        remote = remote_get(name);
 173        if (remote && (remote->url_nr > 1 || strcmp(name, remote->url[0]) ||
 174                        remote->fetch_refspec_nr))
 175                die("remote %s already exists.", name);
 176
 177        strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
 178        if (!valid_fetch_refspec(buf2.buf))
 179                die("'%s' is not a valid remote name", name);
 180
 181        strbuf_addf(&buf, "remote.%s.url", name);
 182        if (git_config_set(buf.buf, url))
 183                return 1;
 184
 185        strbuf_reset(&buf);
 186        strbuf_addf(&buf, "remote.%s.fetch", name);
 187
 188        if (track.nr == 0)
 189                string_list_append(&track, "*");
 190        for (i = 0; i < track.nr; i++) {
 191                if (add_branch(buf.buf, track.items[i].string,
 192                                name, mirror, &buf2))
 193                        return 1;
 194        }
 195
 196        if (mirror) {
 197                strbuf_reset(&buf);
 198                strbuf_addf(&buf, "remote.%s.mirror", name);
 199                if (git_config_set(buf.buf, "true"))
 200                        return 1;
 201        }
 202
 203        if (fetch_tags != TAGS_DEFAULT) {
 204                strbuf_reset(&buf);
 205                strbuf_addf(&buf, "remote.%s.tagopt", name);
 206                if (git_config_set(buf.buf,
 207                        fetch_tags == TAGS_SET ? "--tags" : "--no-tags"))
 208                        return 1;
 209        }
 210
 211        if (fetch && fetch_remote(name))
 212                return 1;
 213
 214        if (master) {
 215                strbuf_reset(&buf);
 216                strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
 217
 218                strbuf_reset(&buf2);
 219                strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
 220
 221                if (create_symref(buf.buf, buf2.buf, "remote add"))
 222                        return error("Could not setup master '%s'", master);
 223        }
 224
 225        strbuf_release(&buf);
 226        strbuf_release(&buf2);
 227        string_list_clear(&track, 0);
 228
 229        return 0;
 230}
 231
 232struct branch_info {
 233        char *remote_name;
 234        struct string_list merge;
 235        int rebase;
 236};
 237
 238static struct string_list branch_list;
 239
 240static const char *abbrev_ref(const char *name, const char *prefix)
 241{
 242        const char *abbrev = skip_prefix(name, prefix);
 243        if (abbrev)
 244                return abbrev;
 245        return name;
 246}
 247#define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 248
 249static int config_read_branches(const char *key, const char *value, void *cb)
 250{
 251        if (!prefixcmp(key, "branch.")) {
 252                const char *orig_key = key;
 253                char *name;
 254                struct string_list_item *item;
 255                struct branch_info *info;
 256                enum { REMOTE, MERGE, REBASE } type;
 257
 258                key += 7;
 259                if (!postfixcmp(key, ".remote")) {
 260                        name = xstrndup(key, strlen(key) - 7);
 261                        type = REMOTE;
 262                } else if (!postfixcmp(key, ".merge")) {
 263                        name = xstrndup(key, strlen(key) - 6);
 264                        type = MERGE;
 265                } else if (!postfixcmp(key, ".rebase")) {
 266                        name = xstrndup(key, strlen(key) - 7);
 267                        type = REBASE;
 268                } else
 269                        return 0;
 270
 271                item = string_list_insert(&branch_list, name);
 272
 273                if (!item->util)
 274                        item->util = xcalloc(sizeof(struct branch_info), 1);
 275                info = item->util;
 276                if (type == REMOTE) {
 277                        if (info->remote_name)
 278                                warning("more than one %s", orig_key);
 279                        info->remote_name = xstrdup(value);
 280                } else if (type == MERGE) {
 281                        char *space = strchr(value, ' ');
 282                        value = abbrev_branch(value);
 283                        while (space) {
 284                                char *merge;
 285                                merge = xstrndup(value, space - value);
 286                                string_list_append(&info->merge, merge);
 287                                value = abbrev_branch(space + 1);
 288                                space = strchr(value, ' ');
 289                        }
 290                        string_list_append(&info->merge, xstrdup(value));
 291                } else
 292                        info->rebase = git_config_bool(orig_key, value);
 293        }
 294        return 0;
 295}
 296
 297static void read_branches(void)
 298{
 299        if (branch_list.nr)
 300                return;
 301        git_config(config_read_branches, NULL);
 302}
 303
 304struct ref_states {
 305        struct remote *remote;
 306        struct string_list new, stale, tracked, heads, push;
 307        int queried;
 308};
 309
 310static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 311{
 312        struct ref *fetch_map = NULL, **tail = &fetch_map;
 313        struct ref *ref, *stale_refs;
 314        int i;
 315
 316        for (i = 0; i < states->remote->fetch_refspec_nr; i++)
 317                if (get_fetch_map(remote_refs, states->remote->fetch + i, &tail, 1))
 318                        die("Could not get fetch map for refspec %s",
 319                                states->remote->fetch_refspec[i]);
 320
 321        states->new.strdup_strings = 1;
 322        states->tracked.strdup_strings = 1;
 323        states->stale.strdup_strings = 1;
 324        for (ref = fetch_map; ref; ref = ref->next) {
 325                unsigned char sha1[20];
 326                if (!ref->peer_ref || read_ref(ref->peer_ref->name, sha1))
 327                        string_list_append(&states->new, abbrev_branch(ref->name));
 328                else
 329                        string_list_append(&states->tracked, abbrev_branch(ref->name));
 330        }
 331        stale_refs = get_stale_heads(states->remote, fetch_map);
 332        for (ref = stale_refs; ref; ref = ref->next) {
 333                struct string_list_item *item =
 334                        string_list_append(&states->stale, abbrev_branch(ref->name));
 335                item->util = xstrdup(ref->name);
 336        }
 337        free_refs(stale_refs);
 338        free_refs(fetch_map);
 339
 340        sort_string_list(&states->new);
 341        sort_string_list(&states->tracked);
 342        sort_string_list(&states->stale);
 343
 344        return 0;
 345}
 346
 347struct push_info {
 348        char *dest;
 349        int forced;
 350        enum {
 351                PUSH_STATUS_CREATE = 0,
 352                PUSH_STATUS_DELETE,
 353                PUSH_STATUS_UPTODATE,
 354                PUSH_STATUS_FASTFORWARD,
 355                PUSH_STATUS_OUTOFDATE,
 356                PUSH_STATUS_NOTQUERIED
 357        } status;
 358};
 359
 360static int get_push_ref_states(const struct ref *remote_refs,
 361        struct ref_states *states)
 362{
 363        struct remote *remote = states->remote;
 364        struct ref *ref, *local_refs, *push_map;
 365        if (remote->mirror)
 366                return 0;
 367
 368        local_refs = get_local_heads();
 369        push_map = copy_ref_list(remote_refs);
 370
 371        match_refs(local_refs, &push_map, remote->push_refspec_nr,
 372                   remote->push_refspec, MATCH_REFS_NONE);
 373
 374        states->push.strdup_strings = 1;
 375        for (ref = push_map; ref; ref = ref->next) {
 376                struct string_list_item *item;
 377                struct push_info *info;
 378
 379                if (!ref->peer_ref)
 380                        continue;
 381                hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
 382
 383                item = string_list_append(&states->push,
 384                                          abbrev_branch(ref->peer_ref->name));
 385                item->util = xcalloc(sizeof(struct push_info), 1);
 386                info = item->util;
 387                info->forced = ref->force;
 388                info->dest = xstrdup(abbrev_branch(ref->name));
 389
 390                if (is_null_sha1(ref->new_sha1)) {
 391                        info->status = PUSH_STATUS_DELETE;
 392                } else if (!hashcmp(ref->old_sha1, ref->new_sha1))
 393                        info->status = PUSH_STATUS_UPTODATE;
 394                else if (is_null_sha1(ref->old_sha1))
 395                        info->status = PUSH_STATUS_CREATE;
 396                else if (has_sha1_file(ref->old_sha1) &&
 397                         ref_newer(ref->new_sha1, ref->old_sha1))
 398                        info->status = PUSH_STATUS_FASTFORWARD;
 399                else
 400                        info->status = PUSH_STATUS_OUTOFDATE;
 401        }
 402        free_refs(local_refs);
 403        free_refs(push_map);
 404        return 0;
 405}
 406
 407static int get_push_ref_states_noquery(struct ref_states *states)
 408{
 409        int i;
 410        struct remote *remote = states->remote;
 411        struct string_list_item *item;
 412        struct push_info *info;
 413
 414        if (remote->mirror)
 415                return 0;
 416
 417        states->push.strdup_strings = 1;
 418        if (!remote->push_refspec_nr) {
 419                item = string_list_append(&states->push, "(matching)");
 420                info = item->util = xcalloc(sizeof(struct push_info), 1);
 421                info->status = PUSH_STATUS_NOTQUERIED;
 422                info->dest = xstrdup(item->string);
 423        }
 424        for (i = 0; i < remote->push_refspec_nr; i++) {
 425                struct refspec *spec = remote->push + i;
 426                if (spec->matching)
 427                        item = string_list_append(&states->push, "(matching)");
 428                else if (strlen(spec->src))
 429                        item = string_list_append(&states->push, spec->src);
 430                else
 431                        item = string_list_append(&states->push, "(delete)");
 432
 433                info = item->util = xcalloc(sizeof(struct push_info), 1);
 434                info->forced = spec->force;
 435                info->status = PUSH_STATUS_NOTQUERIED;
 436                info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 437        }
 438        return 0;
 439}
 440
 441static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 442{
 443        struct ref *ref, *matches;
 444        struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 445        struct refspec refspec;
 446
 447        refspec.force = 0;
 448        refspec.pattern = 1;
 449        refspec.src = refspec.dst = "refs/heads/*";
 450        states->heads.strdup_strings = 1;
 451        get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 452        matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 453                                    fetch_map, 1);
 454        for (ref = matches; ref; ref = ref->next)
 455                string_list_append(&states->heads, abbrev_branch(ref->name));
 456
 457        free_refs(fetch_map);
 458        free_refs(matches);
 459
 460        return 0;
 461}
 462
 463struct known_remote {
 464        struct known_remote *next;
 465        struct remote *remote;
 466};
 467
 468struct known_remotes {
 469        struct remote *to_delete;
 470        struct known_remote *list;
 471};
 472
 473static int add_known_remote(struct remote *remote, void *cb_data)
 474{
 475        struct known_remotes *all = cb_data;
 476        struct known_remote *r;
 477
 478        if (!strcmp(all->to_delete->name, remote->name))
 479                return 0;
 480
 481        r = xmalloc(sizeof(*r));
 482        r->remote = remote;
 483        r->next = all->list;
 484        all->list = r;
 485        return 0;
 486}
 487
 488struct branches_for_remote {
 489        struct remote *remote;
 490        struct string_list *branches, *skipped;
 491        struct known_remotes *keep;
 492};
 493
 494static int add_branch_for_removal(const char *refname,
 495        const unsigned char *sha1, int flags, void *cb_data)
 496{
 497        struct branches_for_remote *branches = cb_data;
 498        struct refspec refspec;
 499        struct string_list_item *item;
 500        struct known_remote *kr;
 501
 502        memset(&refspec, 0, sizeof(refspec));
 503        refspec.dst = (char *)refname;
 504        if (remote_find_tracking(branches->remote, &refspec))
 505                return 0;
 506
 507        /* don't delete a branch if another remote also uses it */
 508        for (kr = branches->keep->list; kr; kr = kr->next) {
 509                memset(&refspec, 0, sizeof(refspec));
 510                refspec.dst = (char *)refname;
 511                if (!remote_find_tracking(kr->remote, &refspec))
 512                        return 0;
 513        }
 514
 515        /* don't delete non-remote-tracking refs */
 516        if (prefixcmp(refname, "refs/remotes")) {
 517                /* advise user how to delete local branches */
 518                if (!prefixcmp(refname, "refs/heads/"))
 519                        string_list_append(branches->skipped,
 520                                           abbrev_branch(refname));
 521                /* silently skip over other non-remote refs */
 522                return 0;
 523        }
 524
 525        /* make sure that symrefs are deleted */
 526        if (flags & REF_ISSYMREF)
 527                return unlink(git_path("%s", refname));
 528
 529        item = string_list_append(branches->branches, refname);
 530        item->util = xmalloc(20);
 531        hashcpy(item->util, sha1);
 532
 533        return 0;
 534}
 535
 536struct rename_info {
 537        const char *old;
 538        const char *new;
 539        struct string_list *remote_branches;
 540};
 541
 542static int read_remote_branches(const char *refname,
 543        const unsigned char *sha1, int flags, void *cb_data)
 544{
 545        struct rename_info *rename = cb_data;
 546        struct strbuf buf = STRBUF_INIT;
 547        struct string_list_item *item;
 548        int flag;
 549        unsigned char orig_sha1[20];
 550        const char *symref;
 551
 552        strbuf_addf(&buf, "refs/remotes/%s", rename->old);
 553        if (!prefixcmp(refname, buf.buf)) {
 554                item = string_list_append(rename->remote_branches, xstrdup(refname));
 555                symref = resolve_ref(refname, orig_sha1, 1, &flag);
 556                if (flag & REF_ISSYMREF)
 557                        item->util = xstrdup(symref);
 558                else
 559                        item->util = NULL;
 560        }
 561
 562        return 0;
 563}
 564
 565static int migrate_file(struct remote *remote)
 566{
 567        struct strbuf buf = STRBUF_INIT;
 568        int i;
 569        char *path = NULL;
 570
 571        strbuf_addf(&buf, "remote.%s.url", remote->name);
 572        for (i = 0; i < remote->url_nr; i++)
 573                if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0))
 574                        return error("Could not append '%s' to '%s'",
 575                                        remote->url[i], buf.buf);
 576        strbuf_reset(&buf);
 577        strbuf_addf(&buf, "remote.%s.push", remote->name);
 578        for (i = 0; i < remote->push_refspec_nr; i++)
 579                if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0))
 580                        return error("Could not append '%s' to '%s'",
 581                                        remote->push_refspec[i], buf.buf);
 582        strbuf_reset(&buf);
 583        strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 584        for (i = 0; i < remote->fetch_refspec_nr; i++)
 585                if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0))
 586                        return error("Could not append '%s' to '%s'",
 587                                        remote->fetch_refspec[i], buf.buf);
 588        if (remote->origin == REMOTE_REMOTES)
 589                path = git_path("remotes/%s", remote->name);
 590        else if (remote->origin == REMOTE_BRANCHES)
 591                path = git_path("branches/%s", remote->name);
 592        if (path)
 593                unlink_or_warn(path);
 594        return 0;
 595}
 596
 597static int mv(int argc, const char **argv)
 598{
 599        struct option options[] = {
 600                OPT_END()
 601        };
 602        struct remote *oldremote, *newremote;
 603        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT;
 604        struct string_list remote_branches = STRING_LIST_INIT_NODUP;
 605        struct rename_info rename;
 606        int i;
 607
 608        if (argc != 3)
 609                usage_with_options(builtin_remote_rename_usage, options);
 610
 611        rename.old = argv[1];
 612        rename.new = argv[2];
 613        rename.remote_branches = &remote_branches;
 614
 615        oldremote = remote_get(rename.old);
 616        if (!oldremote)
 617                die("No such remote: %s", rename.old);
 618
 619        if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
 620                return migrate_file(oldremote);
 621
 622        newremote = remote_get(rename.new);
 623        if (newremote && (newremote->url_nr > 1 || newremote->fetch_refspec_nr))
 624                die("remote %s already exists.", rename.new);
 625
 626        strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
 627        if (!valid_fetch_refspec(buf.buf))
 628                die("'%s' is not a valid remote name", rename.new);
 629
 630        strbuf_reset(&buf);
 631        strbuf_addf(&buf, "remote.%s", rename.old);
 632        strbuf_addf(&buf2, "remote.%s", rename.new);
 633        if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 634                return error("Could not rename config section '%s' to '%s'",
 635                                buf.buf, buf2.buf);
 636
 637        strbuf_reset(&buf);
 638        strbuf_addf(&buf, "remote.%s.fetch", rename.new);
 639        if (git_config_set_multivar(buf.buf, NULL, NULL, 1))
 640                return error("Could not remove config section '%s'", buf.buf);
 641        for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 642                char *ptr;
 643
 644                strbuf_reset(&buf2);
 645                strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 646                ptr = strstr(buf2.buf, rename.old);
 647                if (ptr)
 648                        strbuf_splice(&buf2, ptr-buf2.buf, strlen(rename.old),
 649                                        rename.new, strlen(rename.new));
 650                if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 651                        return error("Could not append '%s'", buf.buf);
 652        }
 653
 654        read_branches();
 655        for (i = 0; i < branch_list.nr; i++) {
 656                struct string_list_item *item = branch_list.items + i;
 657                struct branch_info *info = item->util;
 658                if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 659                        strbuf_reset(&buf);
 660                        strbuf_addf(&buf, "branch.%s.remote", item->string);
 661                        if (git_config_set(buf.buf, rename.new)) {
 662                                return error("Could not set '%s'", buf.buf);
 663                        }
 664                }
 665        }
 666
 667        /*
 668         * First remove symrefs, then rename the rest, finally create
 669         * the new symrefs.
 670         */
 671        for_each_ref(read_remote_branches, &rename);
 672        for (i = 0; i < remote_branches.nr; i++) {
 673                struct string_list_item *item = remote_branches.items + i;
 674                int flag = 0;
 675                unsigned char sha1[20];
 676
 677                resolve_ref(item->string, sha1, 1, &flag);
 678                if (!(flag & REF_ISSYMREF))
 679                        continue;
 680                if (delete_ref(item->string, NULL, REF_NODEREF))
 681                        die("deleting '%s' failed", item->string);
 682        }
 683        for (i = 0; i < remote_branches.nr; i++) {
 684                struct string_list_item *item = remote_branches.items + i;
 685
 686                if (item->util)
 687                        continue;
 688                strbuf_reset(&buf);
 689                strbuf_addstr(&buf, item->string);
 690                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 691                                rename.new, strlen(rename.new));
 692                strbuf_reset(&buf2);
 693                strbuf_addf(&buf2, "remote: renamed %s to %s",
 694                                item->string, buf.buf);
 695                if (rename_ref(item->string, buf.buf, buf2.buf))
 696                        die("renaming '%s' failed", item->string);
 697        }
 698        for (i = 0; i < remote_branches.nr; i++) {
 699                struct string_list_item *item = remote_branches.items + i;
 700
 701                if (!item->util)
 702                        continue;
 703                strbuf_reset(&buf);
 704                strbuf_addstr(&buf, item->string);
 705                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 706                                rename.new, strlen(rename.new));
 707                strbuf_reset(&buf2);
 708                strbuf_addstr(&buf2, item->util);
 709                strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
 710                                rename.new, strlen(rename.new));
 711                strbuf_reset(&buf3);
 712                strbuf_addf(&buf3, "remote: renamed %s to %s",
 713                                item->string, buf.buf);
 714                if (create_symref(buf.buf, buf2.buf, buf3.buf))
 715                        die("creating '%s' failed", buf.buf);
 716        }
 717        return 0;
 718}
 719
 720static int remove_branches(struct string_list *branches)
 721{
 722        int i, result = 0;
 723        for (i = 0; i < branches->nr; i++) {
 724                struct string_list_item *item = branches->items + i;
 725                const char *refname = item->string;
 726                unsigned char *sha1 = item->util;
 727
 728                if (delete_ref(refname, sha1, 0))
 729                        result |= error("Could not remove branch %s", refname);
 730        }
 731        return result;
 732}
 733
 734static int rm(int argc, const char **argv)
 735{
 736        struct option options[] = {
 737                OPT_END()
 738        };
 739        struct remote *remote;
 740        struct strbuf buf = STRBUF_INIT;
 741        struct known_remotes known_remotes = { NULL, NULL };
 742        struct string_list branches = STRING_LIST_INIT_DUP;
 743        struct string_list skipped = STRING_LIST_INIT_DUP;
 744        struct branches_for_remote cb_data;
 745        int i, result;
 746
 747        memset(&cb_data, 0, sizeof(cb_data));
 748        cb_data.branches = &branches;
 749        cb_data.skipped = &skipped;
 750        cb_data.keep = &known_remotes;
 751
 752        if (argc != 2)
 753                usage_with_options(builtin_remote_rm_usage, options);
 754
 755        remote = remote_get(argv[1]);
 756        if (!remote)
 757                die("No such remote: %s", argv[1]);
 758
 759        known_remotes.to_delete = remote;
 760        for_each_remote(add_known_remote, &known_remotes);
 761
 762        strbuf_addf(&buf, "remote.%s", remote->name);
 763        if (git_config_rename_section(buf.buf, NULL) < 1)
 764                return error("Could not remove config section '%s'", buf.buf);
 765
 766        read_branches();
 767        for (i = 0; i < branch_list.nr; i++) {
 768                struct string_list_item *item = branch_list.items + i;
 769                struct branch_info *info = item->util;
 770                if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 771                        const char *keys[] = { "remote", "merge", NULL }, **k;
 772                        for (k = keys; *k; k++) {
 773                                strbuf_reset(&buf);
 774                                strbuf_addf(&buf, "branch.%s.%s",
 775                                                item->string, *k);
 776                                if (git_config_set(buf.buf, NULL)) {
 777                                        strbuf_release(&buf);
 778                                        return -1;
 779                                }
 780                        }
 781                }
 782        }
 783
 784        /*
 785         * We cannot just pass a function to for_each_ref() which deletes
 786         * the branches one by one, since for_each_ref() relies on cached
 787         * refs, which are invalidated when deleting a branch.
 788         */
 789        cb_data.remote = remote;
 790        result = for_each_ref(add_branch_for_removal, &cb_data);
 791        strbuf_release(&buf);
 792
 793        if (!result)
 794                result = remove_branches(&branches);
 795        string_list_clear(&branches, 1);
 796
 797        if (skipped.nr) {
 798                fprintf(stderr, skipped.nr == 1 ?
 799                        "Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 800                        "to delete it, use:\n" :
 801                        "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 802                        "to delete them, use:\n");
 803                for (i = 0; i < skipped.nr; i++)
 804                        fprintf(stderr, "  git branch -d %s\n",
 805                                skipped.items[i].string);
 806        }
 807        string_list_clear(&skipped, 0);
 808
 809        return result;
 810}
 811
 812static void clear_push_info(void *util, const char *string)
 813{
 814        struct push_info *info = util;
 815        free(info->dest);
 816        free(info);
 817}
 818
 819static void free_remote_ref_states(struct ref_states *states)
 820{
 821        string_list_clear(&states->new, 0);
 822        string_list_clear(&states->stale, 1);
 823        string_list_clear(&states->tracked, 0);
 824        string_list_clear(&states->heads, 0);
 825        string_list_clear_func(&states->push, clear_push_info);
 826}
 827
 828static int append_ref_to_tracked_list(const char *refname,
 829        const unsigned char *sha1, int flags, void *cb_data)
 830{
 831        struct ref_states *states = cb_data;
 832        struct refspec refspec;
 833
 834        if (flags & REF_ISSYMREF)
 835                return 0;
 836
 837        memset(&refspec, 0, sizeof(refspec));
 838        refspec.dst = (char *)refname;
 839        if (!remote_find_tracking(states->remote, &refspec))
 840                string_list_append(&states->tracked, abbrev_branch(refspec.src));
 841
 842        return 0;
 843}
 844
 845static int get_remote_ref_states(const char *name,
 846                                 struct ref_states *states,
 847                                 int query)
 848{
 849        struct transport *transport;
 850        const struct ref *remote_refs;
 851
 852        states->remote = remote_get(name);
 853        if (!states->remote)
 854                return error("No such remote: %s", name);
 855
 856        read_branches();
 857
 858        if (query) {
 859                transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 860                        states->remote->url[0] : NULL);
 861                remote_refs = transport_get_remote_refs(transport);
 862                transport_disconnect(transport);
 863
 864                states->queried = 1;
 865                if (query & GET_REF_STATES)
 866                        get_ref_states(remote_refs, states);
 867                if (query & GET_HEAD_NAMES)
 868                        get_head_names(remote_refs, states);
 869                if (query & GET_PUSH_REF_STATES)
 870                        get_push_ref_states(remote_refs, states);
 871        } else {
 872                for_each_ref(append_ref_to_tracked_list, states);
 873                sort_string_list(&states->tracked);
 874                get_push_ref_states_noquery(states);
 875        }
 876
 877        return 0;
 878}
 879
 880struct show_info {
 881        struct string_list *list;
 882        struct ref_states *states;
 883        int width, width2;
 884        int any_rebase;
 885};
 886
 887static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 888{
 889        struct show_info *info = cb_data;
 890        int n = strlen(item->string);
 891        if (n > info->width)
 892                info->width = n;
 893        string_list_insert(info->list, item->string);
 894        return 0;
 895}
 896
 897static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 898{
 899        struct show_info *info = cb_data;
 900        struct ref_states *states = info->states;
 901        const char *name = item->string;
 902
 903        if (states->queried) {
 904                const char *fmt = "%s";
 905                const char *arg = "";
 906                if (string_list_has_string(&states->new, name)) {
 907                        fmt = " new (next fetch will store in remotes/%s)";
 908                        arg = states->remote->name;
 909                } else if (string_list_has_string(&states->tracked, name))
 910                        arg = " tracked";
 911                else if (string_list_has_string(&states->stale, name))
 912                        arg = " stale (use 'git remote prune' to remove)";
 913                else
 914                        arg = " ???";
 915                printf("    %-*s", info->width, name);
 916                printf(fmt, arg);
 917                printf("\n");
 918        } else
 919                printf("    %s\n", name);
 920
 921        return 0;
 922}
 923
 924static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 925{
 926        struct show_info *show_info = cb_data;
 927        struct ref_states *states = show_info->states;
 928        struct branch_info *branch_info = branch_item->util;
 929        struct string_list_item *item;
 930        int n;
 931
 932        if (!branch_info->merge.nr || !branch_info->remote_name ||
 933            strcmp(states->remote->name, branch_info->remote_name))
 934                return 0;
 935        if ((n = strlen(branch_item->string)) > show_info->width)
 936                show_info->width = n;
 937        if (branch_info->rebase)
 938                show_info->any_rebase = 1;
 939
 940        item = string_list_insert(show_info->list, branch_item->string);
 941        item->util = branch_info;
 942
 943        return 0;
 944}
 945
 946static int show_local_info_item(struct string_list_item *item, void *cb_data)
 947{
 948        struct show_info *show_info = cb_data;
 949        struct branch_info *branch_info = item->util;
 950        struct string_list *merge = &branch_info->merge;
 951        const char *also;
 952        int i;
 953
 954        if (branch_info->rebase && branch_info->merge.nr > 1) {
 955                error("invalid branch.%s.merge; cannot rebase onto > 1 branch",
 956                        item->string);
 957                return 0;
 958        }
 959
 960        printf("    %-*s ", show_info->width, item->string);
 961        if (branch_info->rebase) {
 962                printf("rebases onto remote %s\n", merge->items[0].string);
 963                return 0;
 964        } else if (show_info->any_rebase) {
 965                printf(" merges with remote %s\n", merge->items[0].string);
 966                also = "    and with remote";
 967        } else {
 968                printf("merges with remote %s\n", merge->items[0].string);
 969                also = "   and with remote";
 970        }
 971        for (i = 1; i < merge->nr; i++)
 972                printf("    %-*s %s %s\n", show_info->width, "", also,
 973                       merge->items[i].string);
 974
 975        return 0;
 976}
 977
 978static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
 979{
 980        struct show_info *show_info = cb_data;
 981        struct push_info *push_info = push_item->util;
 982        struct string_list_item *item;
 983        int n;
 984        if ((n = strlen(push_item->string)) > show_info->width)
 985                show_info->width = n;
 986        if ((n = strlen(push_info->dest)) > show_info->width2)
 987                show_info->width2 = n;
 988        item = string_list_append(show_info->list, push_item->string);
 989        item->util = push_item->util;
 990        return 0;
 991}
 992
 993/*
 994 * Sorting comparison for a string list that has push_info
 995 * structs in its util field
 996 */
 997static int cmp_string_with_push(const void *va, const void *vb)
 998{
 999        const struct string_list_item *a = va;
1000        const struct string_list_item *b = vb;
1001        const struct push_info *a_push = a->util;
1002        const struct push_info *b_push = b->util;
1003        int cmp = strcmp(a->string, b->string);
1004        return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1005}
1006
1007static int show_push_info_item(struct string_list_item *item, void *cb_data)
1008{
1009        struct show_info *show_info = cb_data;
1010        struct push_info *push_info = item->util;
1011        char *src = item->string, *status = NULL;
1012
1013        switch (push_info->status) {
1014        case PUSH_STATUS_CREATE:
1015                status = "create";
1016                break;
1017        case PUSH_STATUS_DELETE:
1018                status = "delete";
1019                src = "(none)";
1020                break;
1021        case PUSH_STATUS_UPTODATE:
1022                status = "up to date";
1023                break;
1024        case PUSH_STATUS_FASTFORWARD:
1025                status = "fast-forwardable";
1026                break;
1027        case PUSH_STATUS_OUTOFDATE:
1028                status = "local out of date";
1029                break;
1030        case PUSH_STATUS_NOTQUERIED:
1031                break;
1032        }
1033        if (status)
1034                printf("    %-*s %s to %-*s (%s)\n", show_info->width, src,
1035                        push_info->forced ? "forces" : "pushes",
1036                        show_info->width2, push_info->dest, status);
1037        else
1038                printf("    %-*s %s to %s\n", show_info->width, src,
1039                        push_info->forced ? "forces" : "pushes",
1040                        push_info->dest);
1041        return 0;
1042}
1043
1044static int show(int argc, const char **argv)
1045{
1046        int no_query = 0, result = 0, query_flag = 0;
1047        struct option options[] = {
1048                OPT_BOOLEAN('n', NULL, &no_query, "do not query remotes"),
1049                OPT_END()
1050        };
1051        struct ref_states states;
1052        struct string_list info_list = STRING_LIST_INIT_NODUP;
1053        struct show_info info;
1054
1055        argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1056                             0);
1057
1058        if (argc < 1)
1059                return show_all();
1060
1061        if (!no_query)
1062                query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1063
1064        memset(&states, 0, sizeof(states));
1065        memset(&info, 0, sizeof(info));
1066        info.states = &states;
1067        info.list = &info_list;
1068        for (; argc; argc--, argv++) {
1069                int i;
1070                const char **url;
1071                int url_nr;
1072
1073                get_remote_ref_states(*argv, &states, query_flag);
1074
1075                printf("* remote %s\n", *argv);
1076                printf("  Fetch URL: %s\n", states.remote->url_nr > 0 ?
1077                        states.remote->url[0] : "(no URL)");
1078                if (states.remote->pushurl_nr) {
1079                        url = states.remote->pushurl;
1080                        url_nr = states.remote->pushurl_nr;
1081                } else {
1082                        url = states.remote->url;
1083                        url_nr = states.remote->url_nr;
1084                }
1085                for (i=0; i < url_nr; i++)
1086                        printf("  Push  URL: %s\n", url[i]);
1087                if (!i)
1088                        printf("  Push  URL: %s\n", "(no URL)");
1089                if (no_query)
1090                        printf("  HEAD branch: (not queried)\n");
1091                else if (!states.heads.nr)
1092                        printf("  HEAD branch: (unknown)\n");
1093                else if (states.heads.nr == 1)
1094                        printf("  HEAD branch: %s\n", states.heads.items[0].string);
1095                else {
1096                        printf("  HEAD branch (remote HEAD is ambiguous,"
1097                               " may be one of the following):\n");
1098                        for (i = 0; i < states.heads.nr; i++)
1099                                printf("    %s\n", states.heads.items[i].string);
1100                }
1101
1102                /* remote branch info */
1103                info.width = 0;
1104                for_each_string_list(&states.new, add_remote_to_show_info, &info);
1105                for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1106                for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1107                if (info.list->nr)
1108                        printf("  Remote branch%s:%s\n",
1109                               info.list->nr > 1 ? "es" : "",
1110                                no_query ? " (status not queried)" : "");
1111                for_each_string_list(info.list, show_remote_info_item, &info);
1112                string_list_clear(info.list, 0);
1113
1114                /* git pull info */
1115                info.width = 0;
1116                info.any_rebase = 0;
1117                for_each_string_list(&branch_list, add_local_to_show_info, &info);
1118                if (info.list->nr)
1119                        printf("  Local branch%s configured for 'git pull':\n",
1120                               info.list->nr > 1 ? "es" : "");
1121                for_each_string_list(info.list, show_local_info_item, &info);
1122                string_list_clear(info.list, 0);
1123
1124                /* git push info */
1125                if (states.remote->mirror)
1126                        printf("  Local refs will be mirrored by 'git push'\n");
1127
1128                info.width = info.width2 = 0;
1129                for_each_string_list(&states.push, add_push_to_show_info, &info);
1130                qsort(info.list->items, info.list->nr,
1131                        sizeof(*info.list->items), cmp_string_with_push);
1132                if (info.list->nr)
1133                        printf("  Local ref%s configured for 'git push'%s:\n",
1134                                info.list->nr > 1 ? "s" : "",
1135                                no_query ? " (status not queried)" : "");
1136                for_each_string_list(info.list, show_push_info_item, &info);
1137                string_list_clear(info.list, 0);
1138
1139                free_remote_ref_states(&states);
1140        }
1141
1142        return result;
1143}
1144
1145static int set_head(int argc, const char **argv)
1146{
1147        int i, opt_a = 0, opt_d = 0, result = 0;
1148        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1149        char *head_name = NULL;
1150
1151        struct option options[] = {
1152                OPT_BOOLEAN('a', "auto", &opt_a,
1153                            "set refs/remotes/<name>/HEAD according to remote"),
1154                OPT_BOOLEAN('d', "delete", &opt_d,
1155                            "delete refs/remotes/<name>/HEAD"),
1156                OPT_END()
1157        };
1158        argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1159                             0);
1160        if (argc)
1161                strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1162
1163        if (!opt_a && !opt_d && argc == 2) {
1164                head_name = xstrdup(argv[1]);
1165        } else if (opt_a && !opt_d && argc == 1) {
1166                struct ref_states states;
1167                memset(&states, 0, sizeof(states));
1168                get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1169                if (!states.heads.nr)
1170                        result |= error("Cannot determine remote HEAD");
1171                else if (states.heads.nr > 1) {
1172                        result |= error("Multiple remote HEAD branches. "
1173                                        "Please choose one explicitly with:");
1174                        for (i = 0; i < states.heads.nr; i++)
1175                                fprintf(stderr, "  git remote set-head %s %s\n",
1176                                        argv[0], states.heads.items[i].string);
1177                } else
1178                        head_name = xstrdup(states.heads.items[0].string);
1179                free_remote_ref_states(&states);
1180        } else if (opt_d && !opt_a && argc == 1) {
1181                if (delete_ref(buf.buf, NULL, REF_NODEREF))
1182                        result |= error("Could not delete %s", buf.buf);
1183        } else
1184                usage_with_options(builtin_remote_sethead_usage, options);
1185
1186        if (head_name) {
1187                unsigned char sha1[20];
1188                strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1189                /* make sure it's valid */
1190                if (!resolve_ref(buf2.buf, sha1, 1, NULL))
1191                        result |= error("Not a valid ref: %s", buf2.buf);
1192                else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1193                        result |= error("Could not setup %s", buf.buf);
1194                if (opt_a)
1195                        printf("%s/HEAD set to %s\n", argv[0], head_name);
1196                free(head_name);
1197        }
1198
1199        strbuf_release(&buf);
1200        strbuf_release(&buf2);
1201        return result;
1202}
1203
1204static int prune(int argc, const char **argv)
1205{
1206        int dry_run = 0, result = 0;
1207        struct option options[] = {
1208                OPT__DRY_RUN(&dry_run, "dry run"),
1209                OPT_END()
1210        };
1211
1212        argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1213                             0);
1214
1215        if (argc < 1)
1216                usage_with_options(builtin_remote_prune_usage, options);
1217
1218        for (; argc; argc--, argv++)
1219                result |= prune_remote(*argv, dry_run);
1220
1221        return result;
1222}
1223
1224static int prune_remote(const char *remote, int dry_run)
1225{
1226        int result = 0, i;
1227        struct ref_states states;
1228        const char *dangling_msg = dry_run
1229                ? " %s will become dangling!\n"
1230                : " %s has become dangling!\n";
1231
1232        memset(&states, 0, sizeof(states));
1233        get_remote_ref_states(remote, &states, GET_REF_STATES);
1234
1235        if (states.stale.nr) {
1236                printf("Pruning %s\n", remote);
1237                printf("URL: %s\n",
1238                       states.remote->url_nr
1239                       ? states.remote->url[0]
1240                       : "(no URL)");
1241        }
1242
1243        for (i = 0; i < states.stale.nr; i++) {
1244                const char *refname = states.stale.items[i].util;
1245
1246                if (!dry_run)
1247                        result |= delete_ref(refname, NULL, 0);
1248
1249                printf(" * [%s] %s\n", dry_run ? "would prune" : "pruned",
1250                       abbrev_ref(refname, "refs/remotes/"));
1251                warn_dangling_symref(stdout, dangling_msg, refname);
1252        }
1253
1254        free_remote_ref_states(&states);
1255        return result;
1256}
1257
1258static int get_remote_default(const char *key, const char *value, void *priv)
1259{
1260        if (strcmp(key, "remotes.default") == 0) {
1261                int *found = priv;
1262                *found = 1;
1263        }
1264        return 0;
1265}
1266
1267static int update(int argc, const char **argv)
1268{
1269        int i, prune = 0;
1270        struct option options[] = {
1271                OPT_BOOLEAN('p', "prune", &prune,
1272                            "prune remotes after fetching"),
1273                OPT_END()
1274        };
1275        const char **fetch_argv;
1276        int fetch_argc = 0;
1277        int default_defined = 0;
1278
1279        fetch_argv = xmalloc(sizeof(char *) * (argc+5));
1280
1281        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1282                             PARSE_OPT_KEEP_ARGV0);
1283
1284        fetch_argv[fetch_argc++] = "fetch";
1285
1286        if (prune)
1287                fetch_argv[fetch_argc++] = "--prune";
1288        if (verbose)
1289                fetch_argv[fetch_argc++] = "-v";
1290        fetch_argv[fetch_argc++] = "--multiple";
1291        if (argc < 2)
1292                fetch_argv[fetch_argc++] = "default";
1293        for (i = 1; i < argc; i++)
1294                fetch_argv[fetch_argc++] = argv[i];
1295
1296        if (strcmp(fetch_argv[fetch_argc-1], "default") == 0) {
1297                git_config(get_remote_default, &default_defined);
1298                if (!default_defined)
1299                        fetch_argv[fetch_argc-1] = "--all";
1300        }
1301
1302        fetch_argv[fetch_argc] = NULL;
1303
1304        return run_command_v_opt(fetch_argv, RUN_GIT_CMD);
1305}
1306
1307static int remove_all_fetch_refspecs(const char *remote, const char *key)
1308{
1309        return git_config_set_multivar(key, NULL, NULL, 1);
1310}
1311
1312static int add_branches(struct remote *remote, const char **branches,
1313                        const char *key)
1314{
1315        const char *remotename = remote->name;
1316        int mirror = remote->mirror;
1317        struct strbuf refspec = STRBUF_INIT;
1318
1319        for (; *branches; branches++)
1320                if (add_branch(key, *branches, remotename, mirror, &refspec)) {
1321                        strbuf_release(&refspec);
1322                        return 1;
1323                }
1324
1325        strbuf_release(&refspec);
1326        return 0;
1327}
1328
1329static int set_remote_branches(const char *remotename, const char **branches,
1330                                int add_mode)
1331{
1332        struct strbuf key = STRBUF_INIT;
1333        struct remote *remote;
1334
1335        strbuf_addf(&key, "remote.%s.fetch", remotename);
1336
1337        if (!remote_is_configured(remotename))
1338                die("No such remote '%s'", remotename);
1339        remote = remote_get(remotename);
1340
1341        if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
1342                strbuf_release(&key);
1343                return 1;
1344        }
1345        if (add_branches(remote, branches, key.buf)) {
1346                strbuf_release(&key);
1347                return 1;
1348        }
1349
1350        strbuf_release(&key);
1351        return 0;
1352}
1353
1354static int set_branches(int argc, const char **argv)
1355{
1356        int add_mode = 0;
1357        struct option options[] = {
1358                OPT_BOOLEAN('\0', "add", &add_mode, "add branch"),
1359                OPT_END()
1360        };
1361
1362        argc = parse_options(argc, argv, NULL, options,
1363                             builtin_remote_setbranches_usage, 0);
1364        if (argc == 0) {
1365                error("no remote specified");
1366                usage_with_options(builtin_remote_seturl_usage, options);
1367        }
1368        argv[argc] = NULL;
1369
1370        return set_remote_branches(argv[0], argv + 1, add_mode);
1371}
1372
1373static int set_url(int argc, const char **argv)
1374{
1375        int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1376        int matches = 0, negative_matches = 0;
1377        const char *remotename = NULL;
1378        const char *newurl = NULL;
1379        const char *oldurl = NULL;
1380        struct remote *remote;
1381        regex_t old_regex;
1382        const char **urlset;
1383        int urlset_nr;
1384        struct strbuf name_buf = STRBUF_INIT;
1385        struct option options[] = {
1386                OPT_BOOLEAN('\0', "push", &push_mode,
1387                            "manipulate push URLs"),
1388                OPT_BOOLEAN('\0', "add", &add_mode,
1389                            "add URL"),
1390                OPT_BOOLEAN('\0', "delete", &delete_mode,
1391                            "delete URLs"),
1392                OPT_END()
1393        };
1394        argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1395                             PARSE_OPT_KEEP_ARGV0);
1396
1397        if (add_mode && delete_mode)
1398                die("--add --delete doesn't make sense");
1399
1400        if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1401                usage_with_options(builtin_remote_seturl_usage, options);
1402
1403        remotename = argv[1];
1404        newurl = argv[2];
1405        if (argc > 3)
1406                oldurl = argv[3];
1407
1408        if (delete_mode)
1409                oldurl = newurl;
1410
1411        if (!remote_is_configured(remotename))
1412                die("No such remote '%s'", remotename);
1413        remote = remote_get(remotename);
1414
1415        if (push_mode) {
1416                strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1417                urlset = remote->pushurl;
1418                urlset_nr = remote->pushurl_nr;
1419        } else {
1420                strbuf_addf(&name_buf, "remote.%s.url", remotename);
1421                urlset = remote->url;
1422                urlset_nr = remote->url_nr;
1423        }
1424
1425        /* Special cases that add new entry. */
1426        if ((!oldurl && !delete_mode) || add_mode) {
1427                if (add_mode)
1428                        git_config_set_multivar(name_buf.buf, newurl,
1429                                "^$", 0);
1430                else
1431                        git_config_set(name_buf.buf, newurl);
1432                strbuf_release(&name_buf);
1433                return 0;
1434        }
1435
1436        /* Old URL specified. Demand that one matches. */
1437        if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1438                die("Invalid old URL pattern: %s", oldurl);
1439
1440        for (i = 0; i < urlset_nr; i++)
1441                if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1442                        matches++;
1443                else
1444                        negative_matches++;
1445        if (!delete_mode && !matches)
1446                die("No such URL found: %s", oldurl);
1447        if (delete_mode && !negative_matches && !push_mode)
1448                die("Will not delete all non-push URLs");
1449
1450        regfree(&old_regex);
1451
1452        if (!delete_mode)
1453                git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1454        else
1455                git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1456        return 0;
1457}
1458
1459static int get_one_entry(struct remote *remote, void *priv)
1460{
1461        struct string_list *list = priv;
1462        struct strbuf url_buf = STRBUF_INIT;
1463        const char **url;
1464        int i, url_nr;
1465
1466        if (remote->url_nr > 0) {
1467                strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1468                string_list_append(list, remote->name)->util =
1469                                strbuf_detach(&url_buf, NULL);
1470        } else
1471                string_list_append(list, remote->name)->util = NULL;
1472        if (remote->pushurl_nr) {
1473                url = remote->pushurl;
1474                url_nr = remote->pushurl_nr;
1475        } else {
1476                url = remote->url;
1477                url_nr = remote->url_nr;
1478        }
1479        for (i = 0; i < url_nr; i++)
1480        {
1481                strbuf_addf(&url_buf, "%s (push)", url[i]);
1482                string_list_append(list, remote->name)->util =
1483                                strbuf_detach(&url_buf, NULL);
1484        }
1485
1486        return 0;
1487}
1488
1489static int show_all(void)
1490{
1491        struct string_list list = STRING_LIST_INIT_NODUP;
1492        int result;
1493
1494        list.strdup_strings = 1;
1495        result = for_each_remote(get_one_entry, &list);
1496
1497        if (!result) {
1498                int i;
1499
1500                sort_string_list(&list);
1501                for (i = 0; i < list.nr; i++) {
1502                        struct string_list_item *item = list.items + i;
1503                        if (verbose)
1504                                printf("%s\t%s\n", item->string,
1505                                        item->util ? (const char *)item->util : "");
1506                        else {
1507                                if (i && !strcmp((item - 1)->string, item->string))
1508                                        continue;
1509                                printf("%s\n", item->string);
1510                        }
1511                }
1512        }
1513        string_list_clear(&list, 1);
1514        return result;
1515}
1516
1517int cmd_remote(int argc, const char **argv, const char *prefix)
1518{
1519        struct option options[] = {
1520                OPT__VERBOSE(&verbose, "be verbose; must be placed before a subcommand"),
1521                OPT_END()
1522        };
1523        int result;
1524
1525        argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1526                PARSE_OPT_STOP_AT_NON_OPTION);
1527
1528        if (argc < 1)
1529                result = show_all();
1530        else if (!strcmp(argv[0], "add"))
1531                result = add(argc, argv);
1532        else if (!strcmp(argv[0], "rename"))
1533                result = mv(argc, argv);
1534        else if (!strcmp(argv[0], "rm"))
1535                result = rm(argc, argv);
1536        else if (!strcmp(argv[0], "set-head"))
1537                result = set_head(argc, argv);
1538        else if (!strcmp(argv[0], "set-branches"))
1539                result = set_branches(argc, argv);
1540        else if (!strcmp(argv[0], "set-url"))
1541                result = set_url(argc, argv);
1542        else if (!strcmp(argv[0], "show"))
1543                result = show(argc, argv);
1544        else if (!strcmp(argv[0], "prune"))
1545                result = prune(argc, argv);
1546        else if (!strcmp(argv[0], "update"))
1547                result = update(argc, argv);
1548        else {
1549                error("Unknown subcommand: %s", argv[0]);
1550                usage_with_options(builtin_remote_usage, options);
1551        }
1552
1553        return result ? 1 : 0;
1554}