builtin/remote.c

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