builtin/remote.c

   1 #include "builtin.h"
   2 #include "parse-options.h"
   3 #include "transport.h"
   4 #include "remote.h"
   5 #include "string-list.h"
   6 #include "strbuf.h"
   7 #include "run-command.h"
   8 #include "refs.h"
   9
  10 static const char * const builtin_remote_usage[] = {
  11         "git remote [-v | --verbose]",
  12         "git remote add [-t <branch>] [-m <master>] [-f] [--tags|--no-tags] [--mirror=<fetch|push>] <name> <url>",
  13         "git remote rename <old> <new>",
  14         "git remote rm <name>",
  15         "git remote set-head <name> (-a | -d | <branch>)",
  16         "git remote [-v | --verbose] show [-n] <name>",
  17         "git remote prune [-n | --dry-run] <name>",
  18         "git remote [-v | --verbose] update [-p | --prune] [(<group> | <remote>)...]",
  19         "git remote set-branches [--add] <name> <branch>...",
  20         "git remote set-url [--push] <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 fetch_remote(const char *name)
  92 {
  93         const char *argv[] = { "fetch", name, NULL, NULL };
  94         if (verbose) {
  95                 argv[1] = "-v";
  96                 argv[2] = name;
  97         }
  98         printf_ln(_("Updating %s"), name);
  99         if (run_command_v_opt(argv, RUN_GIT_CMD))
 100                 return error(_("Could not fetch %s"), name);
 101         return 0;
 102 }
 103
 104 enum {
 105         TAGS_UNSET = 0,
 106         TAGS_DEFAULT = 1,
 107         TAGS_SET = 2
 108 };
 109
 110 #define MIRROR_NONE 0
 111 #define MIRROR_FETCH 1
 112 #define MIRROR_PUSH 2
 113 #define MIRROR_BOTH (MIRROR_FETCH|MIRROR_PUSH)
 114
 115 static int add_branch(const char *key, const char *branchname,
 116                 const char *remotename, int mirror, struct strbuf *tmp)
 117 {
 118         strbuf_reset(tmp);
 119         strbuf_addch(tmp, '+');
 120         if (mirror)
 121                 strbuf_addf(tmp, "refs/%s:refs/%s",
 122                                 branchname, branchname);
 123         else
 124                 strbuf_addf(tmp, "refs/heads/%s:refs/remotes/%s/%s",
 125                                 branchname, remotename, branchname);
 126         return git_config_set_multivar(key, tmp->buf, "^$", 0);
 127 }
 128
 129 static const char mirror_advice[] =
 130 N_("--mirror is dangerous and deprecated; please\n"
 131    "\t use --mirror=fetch or --mirror=push instead");
 132
 133 static int parse_mirror_opt(const struct option *opt, const char *arg, int not)
 134 {
 135         unsigned *mirror = opt->value;
 136         if (not)
 137                 *mirror = MIRROR_NONE;
 138         else if (!arg) {
 139                 warning("%s", _(mirror_advice));
 140                 *mirror = MIRROR_BOTH;
 141         }
 142         else if (!strcmp(arg, "fetch"))
 143                 *mirror = MIRROR_FETCH;
 144         else if (!strcmp(arg, "push"))
 145                 *mirror = MIRROR_PUSH;
 146         else
 147                 return error(_("unknown mirror argument: %s"), arg);
 148         return 0;
 149 }
 150
 151 static int add(int argc, const char **argv)
 152 {
 153         int fetch = 0, fetch_tags = TAGS_DEFAULT;
 154         unsigned mirror = MIRROR_NONE;
 155         struct string_list track = STRING_LIST_INIT_NODUP;
 156         const char *master = NULL;
 157         struct remote *remote;
 158         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
 159         const char *name, *url;
 160         int i;
 161
 162         struct option options[] = {
 163                 OPT_BOOLEAN('f', "fetch", &fetch, "fetch the remote branches"),
 164                 OPT_SET_INT(0, "tags", &fetch_tags,
 165                             "import all tags and associated objects when fetching",
 166                             TAGS_SET),
 167                 OPT_SET_INT(0, NULL, &fetch_tags,
 168                             "or do not fetch any tag at all (--no-tags)", TAGS_UNSET),
 169                 OPT_STRING_LIST('t', "track", &track, "branch",
 170                                 "branch(es) to track"),
 171                 OPT_STRING('m', "master", &master, "branch", "master branch"),
 172                 { OPTION_CALLBACK, 0, "mirror", &mirror, "push|fetch",
 173                         "set up remote as a mirror to push to or fetch from",
 174                         PARSE_OPT_OPTARG, parse_mirror_opt },
 175                 OPT_END()
 176         };
 177
 178         argc = parse_options(argc, argv, NULL, options, builtin_remote_add_usage,
 179                              0);
 180
 181         if (argc < 2)
 182                 usage_with_options(builtin_remote_add_usage, options);
 183
 184         if (mirror && master)
 185                 die(_("specifying a master branch makes no sense with --mirror"));
 186         if (mirror && !(mirror & MIRROR_FETCH) && track.nr)
 187                 die(_("specifying branches to track makes sense only with fetch mirrors"));
 188
 189         name = argv[0];
 190         url = argv[1];
 191
 192         remote = remote_get(name);
 193         if (remote && (remote->url_nr > 1 || strcmp(name, remote->url[0]) ||
 194                         remote->fetch_refspec_nr))
 195                 die(_("remote %s already exists."), name);
 196
 197         strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
 198         if (!valid_fetch_refspec(buf2.buf))
 199                 die(_("'%s' is not a valid remote name"), name);
 200
 201         strbuf_addf(&buf, "remote.%s.url", name);
 202         if (git_config_set(buf.buf, url))
 203                 return 1;
 204
 205         if (!mirror || mirror & MIRROR_FETCH) {
 206                 strbuf_reset(&buf);
 207                 strbuf_addf(&buf, "remote.%s.fetch", name);
 208                 if (track.nr == 0)
 209                         string_list_append(&track, "*");
 210                 for (i = 0; i < track.nr; i++) {
 211                         if (add_branch(buf.buf, track.items[i].string,
 212                                        name, mirror, &buf2))
 213                                 return 1;
 214                 }
 215         }
 216
 217         if (mirror & MIRROR_PUSH) {
 218                 strbuf_reset(&buf);
 219                 strbuf_addf(&buf, "remote.%s.mirror", name);
 220                 if (git_config_set(buf.buf, "true"))
 221                         return 1;
 222         }
 223
 224         if (fetch_tags != TAGS_DEFAULT) {
 225                 strbuf_reset(&buf);
 226                 strbuf_addf(&buf, "remote.%s.tagopt", name);
 227                 if (git_config_set(buf.buf,
 228                         fetch_tags == TAGS_SET ? "--tags" : "--no-tags"))
 229                         return 1;
 230         }
 231
 232         if (fetch && fetch_remote(name))
 233                 return 1;
 234
 235         if (master) {
 236                 strbuf_reset(&buf);
 237                 strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
 238
 239                 strbuf_reset(&buf2);
 240                 strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
 241
 242                 if (create_symref(buf.buf, buf2.buf, "remote add"))
 243                         return error(_("Could not setup master '%s'"), master);
 244         }
 245
 246         strbuf_release(&buf);
 247         strbuf_release(&buf2);
 248         string_list_clear(&track, 0);
 249
 250         return 0;
 251 }
 252
 253 struct branch_info {
 254         char *remote_name;
 255         struct string_list merge;
 256         enum { NO_REBASE, NORMAL_REBASE, INTERACTIVE_REBASE } rebase;
 257 };
 258
 259 static struct string_list branch_list;
 260
 261 static const char *abbrev_ref(const char *name, const char *prefix)
 262 {
 263         const char *abbrev = skip_prefix(name, prefix);
 264         if (abbrev)
 265                 return abbrev;
 266         return name;
 267 }
 268 #define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 269
 270 static int config_read_branches(const char *key, const char *value, void *cb)
 271 {
 272         if (!prefixcmp(key, "branch.")) {
 273                 const char *orig_key = key;
 274                 char *name;
 275                 struct string_list_item *item;
 276                 struct branch_info *info;
 277                 enum { REMOTE, MERGE, REBASE } type;
 278
 279                 key += 7;
 280                 if (!postfixcmp(key, ".remote")) {
 281                         name = xstrndup(key, strlen(key) - 7);
 282                         type = REMOTE;
 283                 } else if (!postfixcmp(key, ".merge")) {
 284                         name = xstrndup(key, strlen(key) - 6);
 285                         type = MERGE;
 286                 } else if (!postfixcmp(key, ".rebase")) {
 287                         name = xstrndup(key, strlen(key) - 7);
 288                         type = REBASE;
 289                 } else
 290                         return 0;
 291
 292                 item = string_list_insert(&branch_list, name);
 293
 294                 if (!item->util)
 295                         item->util = xcalloc(sizeof(struct branch_info), 1);
 296                 info = item->util;
 297                 if (type == REMOTE) {
 298                         if (info->remote_name)
 299                                 warning(_("more than one %s"), orig_key);
 300                         info->remote_name = xstrdup(value);
 301                 } else if (type == MERGE) {
 302                         char *space = strchr(value, ' ');
 303                         value = abbrev_branch(value);
 304                         while (space) {
 305                                 char *merge;
 306                                 merge = xstrndup(value, space - value);
 307                                 string_list_append(&info->merge, merge);
 308                                 value = abbrev_branch(space + 1);
 309                                 space = strchr(value, ' ');
 310                         }
 311                         string_list_append(&info->merge, xstrdup(value));
 312                 } else
 313                         info->rebase = value && *value == 'i' ?
 314                                 INTERACTIVE_REBASE :
 315                                 (git_config_bool(orig_key, value) ?
 316                                  NORMAL_REBASE : NO_REBASE);
 317         }
 318         return 0;
 319 }
 320
 321 static void read_branches(void)
 322 {
 323         if (branch_list.nr)
 324                 return;
 325         git_config(config_read_branches, NULL);
 326 }
 327
 328 struct ref_states {
 329         struct remote *remote;
 330         struct string_list new, stale, tracked, heads, push;
 331         int queried;
 332 };
 333
 334 static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
 335 {
 336         struct ref *fetch_map = NULL, **tail = &fetch_map;
 337         struct ref *ref, *stale_refs;
 338         int i;
 339
 340         for (i = 0; i < states->remote->fetch_refspec_nr; i++)
 341                 if (get_fetch_map(remote_refs, states->remote->fetch + i, &tail, 1))
 342                         die(_("Could not get fetch map for refspec %s"),
 343                                 states->remote->fetch_refspec[i]);
 344
 345         states->new.strdup_strings = 1;
 346         states->tracked.strdup_strings = 1;
 347         states->stale.strdup_strings = 1;
 348         for (ref = fetch_map; ref; ref = ref->next) {
 349                 if (!ref->peer_ref || !ref_exists(ref->peer_ref->name))
 350                         string_list_append(&states->new, abbrev_branch(ref->name));
 351                 else
 352                         string_list_append(&states->tracked, abbrev_branch(ref->name));
 353         }
 354         stale_refs = get_stale_heads(states->remote->fetch,
 355                                      states->remote->fetch_refspec_nr, fetch_map);
 356         for (ref = stale_refs; ref; ref = ref->next) {
 357                 struct string_list_item *item =
 358                         string_list_append(&states->stale, abbrev_branch(ref->name));
 359                 item->util = xstrdup(ref->name);
 360         }
 361         free_refs(stale_refs);
 362         free_refs(fetch_map);
 363
 364         sort_string_list(&states->new);
 365         sort_string_list(&states->tracked);
 366         sort_string_list(&states->stale);
 367
 368         return 0;
 369 }
 370
 371 struct push_info {
 372         char *dest;
 373         int forced;
 374         enum {
 375                 PUSH_STATUS_CREATE = 0,
 376                 PUSH_STATUS_DELETE,
 377                 PUSH_STATUS_UPTODATE,
 378                 PUSH_STATUS_FASTFORWARD,
 379                 PUSH_STATUS_OUTOFDATE,
 380                 PUSH_STATUS_NOTQUERIED
 381         } status;
 382 };
 383
 384 static int get_push_ref_states(const struct ref *remote_refs,
 385         struct ref_states *states)
 386 {
 387         struct remote *remote = states->remote;
 388         struct ref *ref, *local_refs, *push_map;
 389         if (remote->mirror)
 390                 return 0;
 391
 392         local_refs = get_local_heads();
 393         push_map = copy_ref_list(remote_refs);
 394
 395         match_push_refs(local_refs, &push_map, remote->push_refspec_nr,
 396                         remote->push_refspec, MATCH_REFS_NONE);
 397
 398         states->push.strdup_strings = 1;
 399         for (ref = push_map; ref; ref = ref->next) {
 400                 struct string_list_item *item;
 401                 struct push_info *info;
 402
 403                 if (!ref->peer_ref)
 404                         continue;
 405                 hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
 406
 407                 item = string_list_append(&states->push,
 408                                           abbrev_branch(ref->peer_ref->name));
 409                 item->util = xcalloc(sizeof(struct push_info), 1);
 410                 info = item->util;
 411                 info->forced = ref->force;
 412                 info->dest = xstrdup(abbrev_branch(ref->name));
 413
 414                 if (is_null_sha1(ref->new_sha1)) {
 415                         info->status = PUSH_STATUS_DELETE;
 416                 } else if (!hashcmp(ref->old_sha1, ref->new_sha1))
 417                         info->status = PUSH_STATUS_UPTODATE;
 418                 else if (is_null_sha1(ref->old_sha1))
 419                         info->status = PUSH_STATUS_CREATE;
 420                 else if (has_sha1_file(ref->old_sha1) &&
 421                          ref_newer(ref->new_sha1, ref->old_sha1))
 422                         info->status = PUSH_STATUS_FASTFORWARD;
 423                 else
 424                         info->status = PUSH_STATUS_OUTOFDATE;
 425         }
 426         free_refs(local_refs);
 427         free_refs(push_map);
 428         return 0;
 429 }
 430
 431 static int get_push_ref_states_noquery(struct ref_states *states)
 432 {
 433         int i;
 434         struct remote *remote = states->remote;
 435         struct string_list_item *item;
 436         struct push_info *info;
 437
 438         if (remote->mirror)
 439                 return 0;
 440
 441         states->push.strdup_strings = 1;
 442         if (!remote->push_refspec_nr) {
 443                 item = string_list_append(&states->push, _("(matching)"));
 444                 info = item->util = xcalloc(sizeof(struct push_info), 1);
 445                 info->status = PUSH_STATUS_NOTQUERIED;
 446                 info->dest = xstrdup(item->string);
 447         }
 448         for (i = 0; i < remote->push_refspec_nr; i++) {
 449                 struct refspec *spec = remote->push + i;
 450                 if (spec->matching)
 451                         item = string_list_append(&states->push, _("(matching)"));
 452                 else if (strlen(spec->src))
 453                         item = string_list_append(&states->push, spec->src);
 454                 else
 455                         item = string_list_append(&states->push, _("(delete)"));
 456
 457                 info = item->util = xcalloc(sizeof(struct push_info), 1);
 458                 info->forced = spec->force;
 459                 info->status = PUSH_STATUS_NOTQUERIED;
 460                 info->dest = xstrdup(spec->dst ? spec->dst : item->string);
 461         }
 462         return 0;
 463 }
 464
 465 static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
 466 {
 467         struct ref *ref, *matches;
 468         struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 469         struct refspec refspec;
 470
 471         refspec.force = 0;
 472         refspec.pattern = 1;
 473         refspec.src = refspec.dst = "refs/heads/*";
 474         states->heads.strdup_strings = 1;
 475         get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
 476         matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
 477                                     fetch_map, 1);
 478         for (ref = matches; ref; ref = ref->next)
 479                 string_list_append(&states->heads, abbrev_branch(ref->name));
 480
 481         free_refs(fetch_map);
 482         free_refs(matches);
 483
 484         return 0;
 485 }
 486
 487 struct known_remote {
 488         struct known_remote *next;
 489         struct remote *remote;
 490 };
 491
 492 struct known_remotes {
 493         struct remote *to_delete;
 494         struct known_remote *list;
 495 };
 496
 497 static int add_known_remote(struct remote *remote, void *cb_data)
 498 {
 499         struct known_remotes *all = cb_data;
 500         struct known_remote *r;
 501
 502         if (!strcmp(all->to_delete->name, remote->name))
 503                 return 0;
 504
 505         r = xmalloc(sizeof(*r));
 506         r->remote = remote;
 507         r->next = all->list;
 508         all->list = r;
 509         return 0;
 510 }
 511
 512 struct branches_for_remote {
 513         struct remote *remote;
 514         struct string_list *branches, *skipped;
 515         struct known_remotes *keep;
 516 };
 517
 518 static int add_branch_for_removal(const char *refname,
 519         const unsigned char *sha1, int flags, void *cb_data)
 520 {
 521         struct branches_for_remote *branches = cb_data;
 522         struct refspec refspec;
 523         struct string_list_item *item;
 524         struct known_remote *kr;
 525
 526         memset(&refspec, 0, sizeof(refspec));
 527         refspec.dst = (char *)refname;
 528         if (remote_find_tracking(branches->remote, &refspec))
 529                 return 0;
 530
 531         /* don't delete a branch if another remote also uses it */
 532         for (kr = branches->keep->list; kr; kr = kr->next) {
 533                 memset(&refspec, 0, sizeof(refspec));
 534                 refspec.dst = (char *)refname;
 535                 if (!remote_find_tracking(kr->remote, &refspec))
 536                         return 0;
 537         }
 538
 539         /* don't delete non-remote-tracking refs */
 540         if (prefixcmp(refname, "refs/remotes/")) {
 541                 /* advise user how to delete local branches */
 542                 if (!prefixcmp(refname, "refs/heads/"))
 543                         string_list_append(branches->skipped,
 544                                            abbrev_branch(refname));
 545                 /* silently skip over other non-remote refs */
 546                 return 0;
 547         }
 548
 549         /* make sure that symrefs are deleted */
 550         if (flags & REF_ISSYMREF)
 551                 return unlink(git_path("%s", refname));
 552
 553         item = string_list_append(branches->branches, refname);
 554         item->util = xmalloc(20);
 555         hashcpy(item->util, sha1);
 556
 557         return 0;
 558 }
 559
 560 struct rename_info {
 561         const char *old;
 562         const char *new;
 563         struct string_list *remote_branches;
 564 };
 565
 566 static int read_remote_branches(const char *refname,
 567         const unsigned char *sha1, int flags, void *cb_data)
 568 {
 569         struct rename_info *rename = cb_data;
 570         struct strbuf buf = STRBUF_INIT;
 571         struct string_list_item *item;
 572         int flag;
 573         unsigned char orig_sha1[20];
 574         const char *symref;
 575
 576         strbuf_addf(&buf, "refs/remotes/%s/", rename->old);
 577         if (!prefixcmp(refname, buf.buf)) {
 578                 item = string_list_append(rename->remote_branches, xstrdup(refname));
 579                 symref = resolve_ref_unsafe(refname, orig_sha1, 1, &flag);
 580                 if (flag & REF_ISSYMREF)
 581                         item->util = xstrdup(symref);
 582                 else
 583                         item->util = NULL;
 584         }
 585
 586         return 0;
 587 }
 588
 589 static int migrate_file(struct remote *remote)
 590 {
 591         struct strbuf buf = STRBUF_INIT;
 592         int i;
 593         char *path = NULL;
 594
 595         strbuf_addf(&buf, "remote.%s.url", remote->name);
 596         for (i = 0; i < remote->url_nr; i++)
 597                 if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0))
 598                         return error(_("Could not append '%s' to '%s'"),
 599                                         remote->url[i], buf.buf);
 600         strbuf_reset(&buf);
 601         strbuf_addf(&buf, "remote.%s.push", remote->name);
 602         for (i = 0; i < remote->push_refspec_nr; i++)
 603                 if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0))
 604                         return error(_("Could not append '%s' to '%s'"),
 605                                         remote->push_refspec[i], buf.buf);
 606         strbuf_reset(&buf);
 607         strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 608         for (i = 0; i < remote->fetch_refspec_nr; i++)
 609                 if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0))
 610                         return error(_("Could not append '%s' to '%s'"),
 611                                         remote->fetch_refspec[i], buf.buf);
 612         if (remote->origin == REMOTE_REMOTES)
 613                 path = git_path("remotes/%s", remote->name);
 614         else if (remote->origin == REMOTE_BRANCHES)
 615                 path = git_path("branches/%s", remote->name);
 616         if (path)
 617                 unlink_or_warn(path);
 618         return 0;
 619 }
 620
 621 static int mv(int argc, const char **argv)
 622 {
 623         struct option options[] = {
 624                 OPT_END()
 625         };
 626         struct remote *oldremote, *newremote;
 627         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT,
 628                 old_remote_context = STRBUF_INIT;
 629         struct string_list remote_branches = STRING_LIST_INIT_NODUP;
 630         struct rename_info rename;
 631         int i, refspec_updated = 0;
 632
 633         if (argc != 3)
 634                 usage_with_options(builtin_remote_rename_usage, options);
 635
 636         rename.old = argv[1];
 637         rename.new = argv[2];
 638         rename.remote_branches = &remote_branches;
 639
 640         oldremote = remote_get(rename.old);
 641         if (!oldremote)
 642                 die(_("No such remote: %s"), rename.old);
 643
 644         if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
 645                 return migrate_file(oldremote);
 646
 647         newremote = remote_get(rename.new);
 648         if (newremote && (newremote->url_nr > 1 || newremote->fetch_refspec_nr))
 649                 die(_("remote %s already exists."), rename.new);
 650
 651         strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
 652         if (!valid_fetch_refspec(buf.buf))
 653                 die(_("'%s' is not a valid remote name"), rename.new);
 654
 655         strbuf_reset(&buf);
 656         strbuf_addf(&buf, "remote.%s", rename.old);
 657         strbuf_addf(&buf2, "remote.%s", rename.new);
 658         if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 659                 return error(_("Could not rename config section '%s' to '%s'"),
 660                                 buf.buf, buf2.buf);
 661
 662         strbuf_reset(&buf);
 663         strbuf_addf(&buf, "remote.%s.fetch", rename.new);
 664         if (git_config_set_multivar(buf.buf, NULL, NULL, 1))
 665                 return error(_("Could not remove config section '%s'"), buf.buf);
 666         strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old);
 667         for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 668                 char *ptr;
 669
 670                 strbuf_reset(&buf2);
 671                 strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 672                 ptr = strstr(buf2.buf, old_remote_context.buf);
 673                 if (ptr) {
 674                         refspec_updated = 1;
 675                         strbuf_splice(&buf2,
 676                                       ptr-buf2.buf + strlen(":refs/remotes/"),
 677                                       strlen(rename.old), rename.new,
 678                                       strlen(rename.new));
 679                 } else
 680                         warning(_("Not updating non-default fetch respec\n"
 681                                   "\t%s\n"
 682                                   "\tPlease update the configuration manually if necessary."),
 683                                 buf2.buf);
 684
 685                 if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 686                         return error(_("Could not append '%s'"), buf.buf);
 687         }
 688
 689         read_branches();
 690         for (i = 0; i < branch_list.nr; i++) {
 691                 struct string_list_item *item = branch_list.items + i;
 692                 struct branch_info *info = item->util;
 693                 if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
 694                         strbuf_reset(&buf);
 695                         strbuf_addf(&buf, "branch.%s.remote", item->string);
 696                         if (git_config_set(buf.buf, rename.new)) {
 697                                 return error(_("Could not set '%s'"), buf.buf);
 698                         }
 699                 }
 700         }
 701
 702         if (!refspec_updated)
 703                 return 0;
 704
 705         /*
 706          * First remove symrefs, then rename the rest, finally create
 707          * the new symrefs.
 708          */
 709         for_each_ref(read_remote_branches, &rename);
 710         for (i = 0; i < remote_branches.nr; i++) {
 711                 struct string_list_item *item = remote_branches.items + i;
 712                 int flag = 0;
 713                 unsigned char sha1[20];
 714
 715                 read_ref_full(item->string, sha1, 1, &flag);
 716                 if (!(flag & REF_ISSYMREF))
 717                         continue;
 718                 if (delete_ref(item->string, NULL, REF_NODEREF))
 719                         die(_("deleting '%s' failed"), item->string);
 720         }
 721         for (i = 0; i < remote_branches.nr; i++) {
 722                 struct string_list_item *item = remote_branches.items + i;
 723
 724                 if (item->util)
 725                         continue;
 726                 strbuf_reset(&buf);
 727                 strbuf_addstr(&buf, item->string);
 728                 strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 729                                 rename.new, strlen(rename.new));
 730                 strbuf_reset(&buf2);
 731                 strbuf_addf(&buf2, "remote: renamed %s to %s",
 732                                 item->string, buf.buf);
 733                 if (rename_ref(item->string, buf.buf, buf2.buf))
 734                         die(_("renaming '%s' failed"), item->string);
 735         }
 736         for (i = 0; i < remote_branches.nr; i++) {
 737                 struct string_list_item *item = remote_branches.items + i;
 738
 739                 if (!item->util)
 740                         continue;
 741                 strbuf_reset(&buf);
 742                 strbuf_addstr(&buf, item->string);
 743                 strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 744                                 rename.new, strlen(rename.new));
 745                 strbuf_reset(&buf2);
 746                 strbuf_addstr(&buf2, item->util);
 747                 strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
 748                                 rename.new, strlen(rename.new));
 749                 strbuf_reset(&buf3);
 750                 strbuf_addf(&buf3, "remote: renamed %s to %s",
 751                                 item->string, buf.buf);
 752                 if (create_symref(buf.buf, buf2.buf, buf3.buf))
 753                         die(_("creating '%s' failed"), buf.buf);
 754         }
 755         return 0;
 756 }
 757
 758 static int remove_branches(struct string_list *branches)
 759 {
 760         int i, result = 0;
 761         for (i = 0; i < branches->nr; i++) {
 762                 struct string_list_item *item = branches->items + i;
 763                 const char *refname = item->string;
 764                 unsigned char *sha1 = item->util;
 765
 766                 if (delete_ref(refname, sha1, 0))
 767                         result |= error(_("Could not remove branch %s"), refname);
 768         }
 769         return result;
 770 }
 771
 772 static int rm(int argc, const char **argv)
 773 {
 774         struct option options[] = {
 775                 OPT_END()
 776         };
 777         struct remote *remote;
 778         struct strbuf buf = STRBUF_INIT;
 779         struct known_remotes known_remotes = { NULL, NULL };
 780         struct string_list branches = STRING_LIST_INIT_DUP;
 781         struct string_list skipped = STRING_LIST_INIT_DUP;
 782         struct branches_for_remote cb_data;
 783         int i, result;
 784
 785         memset(&cb_data, 0, sizeof(cb_data));
 786         cb_data.branches = &branches;
 787         cb_data.skipped = &skipped;
 788         cb_data.keep = &known_remotes;
 789
 790         if (argc != 2)
 791                 usage_with_options(builtin_remote_rm_usage, options);
 792
 793         remote = remote_get(argv[1]);
 794         if (!remote)
 795                 die(_("No such remote: %s"), argv[1]);
 796
 797         known_remotes.to_delete = remote;
 798         for_each_remote(add_known_remote, &known_remotes);
 799
 800         strbuf_addf(&buf, "remote.%s", remote->name);
 801         if (git_config_rename_section(buf.buf, NULL) < 1)
 802                 return error(_("Could not remove config section '%s'"), buf.buf);
 803
 804         read_branches();
 805         for (i = 0; i < branch_list.nr; i++) {
 806                 struct string_list_item *item = branch_list.items + i;
 807                 struct branch_info *info = item->util;
 808                 if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
 809                         const char *keys[] = { "remote", "merge", NULL }, **k;
 810                         for (k = keys; *k; k++) {
 811                                 strbuf_reset(&buf);
 812                                 strbuf_addf(&buf, "branch.%s.%s",
 813                                                 item->string, *k);
 814                                 if (git_config_set(buf.buf, NULL)) {
 815                                         strbuf_release(&buf);
 816                                         return -1;
 817                                 }
 818                         }
 819                 }
 820         }
 821
 822         /*
 823          * We cannot just pass a function to for_each_ref() which deletes
 824          * the branches one by one, since for_each_ref() relies on cached
 825          * refs, which are invalidated when deleting a branch.
 826          */
 827         cb_data.remote = remote;
 828         result = for_each_ref(add_branch_for_removal, &cb_data);
 829         strbuf_release(&buf);
 830
 831         if (!result)
 832                 result = remove_branches(&branches);
 833         string_list_clear(&branches, 1);
 834
 835         if (skipped.nr) {
 836                 fprintf_ln(stderr,
 837                            Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
 838                               "to delete it, use:",
 839                               "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
 840                               "to delete them, use:",
 841                               skipped.nr));
 842                 for (i = 0; i < skipped.nr; i++)
 843                         fprintf(stderr, "  git branch -d %s\n",
 844                                 skipped.items[i].string);
 845         }
 846         string_list_clear(&skipped, 0);
 847
 848         return result;
 849 }
 850
 851 static void clear_push_info(void *util, const char *string)
 852 {
 853         struct push_info *info = util;
 854         free(info->dest);
 855         free(info);
 856 }
 857
 858 static void free_remote_ref_states(struct ref_states *states)
 859 {
 860         string_list_clear(&states->new, 0);
 861         string_list_clear(&states->stale, 1);
 862         string_list_clear(&states->tracked, 0);
 863         string_list_clear(&states->heads, 0);
 864         string_list_clear_func(&states->push, clear_push_info);
 865 }
 866
 867 static int append_ref_to_tracked_list(const char *refname,
 868         const unsigned char *sha1, int flags, void *cb_data)
 869 {
 870         struct ref_states *states = cb_data;
 871         struct refspec refspec;
 872
 873         if (flags & REF_ISSYMREF)
 874                 return 0;
 875
 876         memset(&refspec, 0, sizeof(refspec));
 877         refspec.dst = (char *)refname;
 878         if (!remote_find_tracking(states->remote, &refspec))
 879                 string_list_append(&states->tracked, abbrev_branch(refspec.src));
 880
 881         return 0;
 882 }
 883
 884 static int get_remote_ref_states(const char *name,
 885                                  struct ref_states *states,
 886                                  int query)
 887 {
 888         struct transport *transport;
 889         const struct ref *remote_refs;
 890
 891         states->remote = remote_get(name);
 892         if (!states->remote)
 893                 return error(_("No such remote: %s"), name);
 894
 895         read_branches();
 896
 897         if (query) {
 898                 transport = transport_get(states->remote, states->remote->url_nr > 0 ?
 899                         states->remote->url[0] : NULL);
 900                 remote_refs = transport_get_remote_refs(transport);
 901                 transport_disconnect(transport);
 902
 903                 states->queried = 1;
 904                 if (query & GET_REF_STATES)
 905                         get_ref_states(remote_refs, states);
 906                 if (query & GET_HEAD_NAMES)
 907                         get_head_names(remote_refs, states);
 908                 if (query & GET_PUSH_REF_STATES)
 909                         get_push_ref_states(remote_refs, states);
 910         } else {
 911                 for_each_ref(append_ref_to_tracked_list, states);
 912                 sort_string_list(&states->tracked);
 913                 get_push_ref_states_noquery(states);
 914         }
 915
 916         return 0;
 917 }
 918
 919 struct show_info {
 920         struct string_list *list;
 921         struct ref_states *states;
 922         int width, width2;
 923         int any_rebase;
 924 };
 925
 926 static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
 927 {
 928         struct show_info *info = cb_data;
 929         int n = strlen(item->string);
 930         if (n > info->width)
 931                 info->width = n;
 932         string_list_insert(info->list, item->string);
 933         return 0;
 934 }
 935
 936 static int show_remote_info_item(struct string_list_item *item, void *cb_data)
 937 {
 938         struct show_info *info = cb_data;
 939         struct ref_states *states = info->states;
 940         const char *name = item->string;
 941
 942         if (states->queried) {
 943                 const char *fmt = "%s";
 944                 const char *arg = "";
 945                 if (string_list_has_string(&states->new, name)) {
 946                         fmt = _(" new (next fetch will store in remotes/%s)");
 947                         arg = states->remote->name;
 948                 } else if (string_list_has_string(&states->tracked, name))
 949                         arg = _(" tracked");
 950                 else if (string_list_has_string(&states->stale, name))
 951                         arg = _(" stale (use 'git remote prune' to remove)");
 952                 else
 953                         arg = _(" ???");
 954                 printf("    %-*s", info->width, name);
 955                 printf(fmt, arg);
 956                 printf("\n");
 957         } else
 958                 printf("    %s\n", name);
 959
 960         return 0;
 961 }
 962
 963 static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
 964 {
 965         struct show_info *show_info = cb_data;
 966         struct ref_states *states = show_info->states;
 967         struct branch_info *branch_info = branch_item->util;
 968         struct string_list_item *item;
 969         int n;
 970
 971         if (!branch_info->merge.nr || !branch_info->remote_name ||
 972             strcmp(states->remote->name, branch_info->remote_name))
 973                 return 0;
 974         if ((n = strlen(branch_item->string)) > show_info->width)
 975                 show_info->width = n;
 976         if (branch_info->rebase)
 977                 show_info->any_rebase = 1;
 978
 979         item = string_list_insert(show_info->list, branch_item->string);
 980         item->util = branch_info;
 981
 982         return 0;
 983 }
 984
 985 static int show_local_info_item(struct string_list_item *item, void *cb_data)
 986 {
 987         struct show_info *show_info = cb_data;
 988         struct branch_info *branch_info = item->util;
 989         struct string_list *merge = &branch_info->merge;
 990         const char *also;
 991         int i;
 992
 993         if (branch_info->rebase && branch_info->merge.nr > 1) {
 994                 error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"),
 995                         item->string);
 996                 return 0;
 997         }
 998
 999         printf("    %-*s ", show_info->width, item->string);
1000         if (branch_info->rebase) {
1001                 printf_ln(_(branch_info->rebase == INTERACTIVE_REBASE ?
1002                         "rebases interactively onto remote %s" :
1003                         "rebases onto remote %s"), merge->items[0].string);
1004                 return 0;
1005         } else if (show_info->any_rebase) {
1006                 printf_ln(_(" merges with remote %s"), merge->items[0].string);
1007                 also = _("    and with remote");
1008         } else {
1009                 printf_ln(_("merges with remote %s"), merge->items[0].string);
1010                 also = _("   and with remote");
1011         }
1012         for (i = 1; i < merge->nr; i++)
1013                 printf("    %-*s %s %s\n", show_info->width, "", also,
1014                        merge->items[i].string);
1015
1016         return 0;
1017 }
1018
1019 static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
1020 {
1021         struct show_info *show_info = cb_data;
1022         struct push_info *push_info = push_item->util;
1023         struct string_list_item *item;
1024         int n;
1025         if ((n = strlen(push_item->string)) > show_info->width)
1026                 show_info->width = n;
1027         if ((n = strlen(push_info->dest)) > show_info->width2)
1028                 show_info->width2 = n;
1029         item = string_list_append(show_info->list, push_item->string);
1030         item->util = push_item->util;
1031         return 0;
1032 }
1033
1034 /*
1035  * Sorting comparison for a string list that has push_info
1036  * structs in its util field
1037  */
1038 static int cmp_string_with_push(const void *va, const void *vb)
1039 {
1040         const struct string_list_item *a = va;
1041         const struct string_list_item *b = vb;
1042         const struct push_info *a_push = a->util;
1043         const struct push_info *b_push = b->util;
1044         int cmp = strcmp(a->string, b->string);
1045         return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1046 }
1047
1048 static int show_push_info_item(struct string_list_item *item, void *cb_data)
1049 {
1050         struct show_info *show_info = cb_data;
1051         struct push_info *push_info = item->util;
1052         const char *src = item->string, *status = NULL;
1053
1054         switch (push_info->status) {
1055         case PUSH_STATUS_CREATE:
1056                 status = _("create");
1057                 break;
1058         case PUSH_STATUS_DELETE:
1059                 status = _("delete");
1060                 src = _("(none)");
1061                 break;
1062         case PUSH_STATUS_UPTODATE:
1063                 status = _("up to date");
1064                 break;
1065         case PUSH_STATUS_FASTFORWARD:
1066                 status = _("fast-forwardable");
1067                 break;
1068         case PUSH_STATUS_OUTOFDATE:
1069                 status = _("local out of date");
1070                 break;
1071         case PUSH_STATUS_NOTQUERIED:
1072                 break;
1073         }
1074         if (status) {
1075                 if (push_info->forced)
1076                         printf_ln(_("    %-*s forces to %-*s (%s)"), show_info->width, src,
1077                                show_info->width2, push_info->dest, status);
1078                 else
1079                         printf_ln(_("    %-*s pushes to %-*s (%s)"), show_info->width, src,
1080                                show_info->width2, push_info->dest, status);
1081         } else {
1082                 if (push_info->forced)
1083                         printf_ln(_("    %-*s forces to %s"), show_info->width, src,
1084                                push_info->dest);
1085                 else
1086                         printf_ln(_("    %-*s pushes to %s"), show_info->width, src,
1087                                push_info->dest);
1088         }
1089         return 0;
1090 }
1091
1092 static int show(int argc, const char **argv)
1093 {
1094         int no_query = 0, result = 0, query_flag = 0;
1095         struct option options[] = {
1096                 OPT_BOOLEAN('n', NULL, &no_query, "do not query remotes"),
1097                 OPT_END()
1098         };
1099         struct ref_states states;
1100         struct string_list info_list = STRING_LIST_INIT_NODUP;
1101         struct show_info info;
1102
1103         argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1104                              0);
1105
1106         if (argc < 1)
1107                 return show_all();
1108
1109         if (!no_query)
1110                 query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1111
1112         memset(&states, 0, sizeof(states));
1113         memset(&info, 0, sizeof(info));
1114         info.states = &states;
1115         info.list = &info_list;
1116         for (; argc; argc--, argv++) {
1117                 int i;
1118                 const char **url;
1119                 int url_nr;
1120
1121                 get_remote_ref_states(*argv, &states, query_flag);
1122
1123                 printf_ln(_("* remote %s"), *argv);
1124                 printf_ln(_("  Fetch URL: %s"), states.remote->url_nr > 0 ?
1125                        states.remote->url[0] : _("(no URL)"));
1126                 if (states.remote->pushurl_nr) {
1127                         url = states.remote->pushurl;
1128                         url_nr = states.remote->pushurl_nr;
1129                 } else {
1130                         url = states.remote->url;
1131                         url_nr = states.remote->url_nr;
1132                 }
1133                 for (i = 0; i < url_nr; i++)
1134                         printf_ln(_("  Push  URL: %s"), url[i]);
1135                 if (!i)
1136                         printf_ln(_("  Push  URL: %s"), "(no URL)");
1137                 if (no_query)
1138                         printf_ln(_("  HEAD branch: %s"), "(not queried)");
1139                 else if (!states.heads.nr)
1140                         printf_ln(_("  HEAD branch: %s"), "(unknown)");
1141                 else if (states.heads.nr == 1)
1142                         printf_ln(_("  HEAD branch: %s"), states.heads.items[0].string);
1143                 else {
1144                         printf(_("  HEAD branch (remote HEAD is ambiguous,"
1145                                  " may be one of the following):\n"));
1146                         for (i = 0; i < states.heads.nr; i++)
1147                                 printf("    %s\n", states.heads.items[i].string);
1148                 }
1149
1150                 /* remote branch info */
1151                 info.width = 0;
1152                 for_each_string_list(&states.new, add_remote_to_show_info, &info);
1153                 for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1154                 for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1155                 if (info.list->nr)
1156                         printf_ln(Q_("  Remote branch:%s",
1157                                      "  Remote branches:%s",
1158                                      info.list->nr),
1159                                   no_query ? _(" (status not queried)") : "");
1160                 for_each_string_list(info.list, show_remote_info_item, &info);
1161                 string_list_clear(info.list, 0);
1162
1163                 /* git pull info */
1164                 info.width = 0;
1165                 info.any_rebase = 0;
1166                 for_each_string_list(&branch_list, add_local_to_show_info, &info);
1167                 if (info.list->nr)
1168                         printf_ln(Q_("  Local branch configured for 'git pull':",
1169                                      "  Local branches configured for 'git pull':",
1170                                      info.list->nr));
1171                 for_each_string_list(info.list, show_local_info_item, &info);
1172                 string_list_clear(info.list, 0);
1173
1174                 /* git push info */
1175                 if (states.remote->mirror)
1176                         printf_ln(_("  Local refs will be mirrored by 'git push'"));
1177
1178                 info.width = info.width2 = 0;
1179                 for_each_string_list(&states.push, add_push_to_show_info, &info);
1180                 qsort(info.list->items, info.list->nr,
1181                         sizeof(*info.list->items), cmp_string_with_push);
1182                 if (info.list->nr)
1183                         printf_ln(Q_("  Local ref configured for 'git push'%s:",
1184                                      "  Local refs configured for 'git push'%s:",
1185                                      info.list->nr),
1186                                   no_query ? _(" (status not queried)") : "");
1187                 for_each_string_list(info.list, show_push_info_item, &info);
1188                 string_list_clear(info.list, 0);
1189
1190                 free_remote_ref_states(&states);
1191         }
1192
1193         return result;
1194 }
1195
1196 static int set_head(int argc, const char **argv)
1197 {
1198         int i, opt_a = 0, opt_d = 0, result = 0;
1199         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1200         char *head_name = NULL;
1201
1202         struct option options[] = {
1203                 OPT_BOOLEAN('a', "auto", &opt_a,
1204                             "set refs/remotes/<name>/HEAD according to remote"),
1205                 OPT_BOOLEAN('d', "delete", &opt_d,
1206                             "delete refs/remotes/<name>/HEAD"),
1207                 OPT_END()
1208         };
1209         argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1210                              0);
1211         if (argc)
1212                 strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1213
1214         if (!opt_a && !opt_d && argc == 2) {
1215                 head_name = xstrdup(argv[1]);
1216         } else if (opt_a && !opt_d && argc == 1) {
1217                 struct ref_states states;
1218                 memset(&states, 0, sizeof(states));
1219                 get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1220                 if (!states.heads.nr)
1221                         result |= error(_("Cannot determine remote HEAD"));
1222                 else if (states.heads.nr > 1) {
1223                         result |= error(_("Multiple remote HEAD branches. "
1224                                           "Please choose one explicitly with:"));
1225                         for (i = 0; i < states.heads.nr; i++)
1226                                 fprintf(stderr, "  git remote set-head %s %s\n",
1227                                         argv[0], states.heads.items[i].string);
1228                 } else
1229                         head_name = xstrdup(states.heads.items[0].string);
1230                 free_remote_ref_states(&states);
1231         } else if (opt_d && !opt_a && argc == 1) {
1232                 if (delete_ref(buf.buf, NULL, REF_NODEREF))
1233                         result |= error(_("Could not delete %s"), buf.buf);
1234         } else
1235                 usage_with_options(builtin_remote_sethead_usage, options);
1236
1237         if (head_name) {
1238                 strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1239                 /* make sure it's valid */
1240                 if (!ref_exists(buf2.buf))
1241                         result |= error(_("Not a valid ref: %s"), buf2.buf);
1242                 else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1243                         result |= error(_("Could not setup %s"), buf.buf);
1244                 if (opt_a)
1245                         printf("%s/HEAD set to %s\n", argv[0], head_name);
1246                 free(head_name);
1247         }
1248
1249         strbuf_release(&buf);
1250         strbuf_release(&buf2);
1251         return result;
1252 }
1253
1254 static int prune(int argc, const char **argv)
1255 {
1256         int dry_run = 0, result = 0;
1257         struct option options[] = {
1258                 OPT__DRY_RUN(&dry_run, "dry run"),
1259                 OPT_END()
1260         };
1261
1262         argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1263                              0);
1264
1265         if (argc < 1)
1266                 usage_with_options(builtin_remote_prune_usage, options);
1267
1268         for (; argc; argc--, argv++)
1269                 result |= prune_remote(*argv, dry_run);
1270
1271         return result;
1272 }
1273
1274 static int prune_remote(const char *remote, int dry_run)
1275 {
1276         int result = 0, i;
1277         struct ref_states states;
1278         const char *dangling_msg = dry_run
1279                 ? _(" %s will become dangling!")
1280                 : _(" %s has become dangling!");
1281
1282         memset(&states, 0, sizeof(states));
1283         get_remote_ref_states(remote, &states, GET_REF_STATES);
1284
1285         if (states.stale.nr) {
1286                 printf_ln(_("Pruning %s"), remote);
1287                 printf_ln(_("URL: %s"),
1288                        states.remote->url_nr
1289                        ? states.remote->url[0]
1290                        : _("(no URL)"));
1291         }
1292
1293         for (i = 0; i < states.stale.nr; i++) {
1294                 const char *refname = states.stale.items[i].util;
1295
1296                 if (!dry_run)
1297                         result |= delete_ref(refname, NULL, 0);
1298
1299                 if (dry_run)
1300                         printf_ln(_(" * [would prune] %s"),
1301                                abbrev_ref(refname, "refs/remotes/"));
1302                 else
1303                         printf_ln(_(" * [pruned] %s"),
1304                                abbrev_ref(refname, "refs/remotes/"));
1305                 warn_dangling_symref(stdout, dangling_msg, refname);
1306         }
1307
1308         free_remote_ref_states(&states);
1309         return result;
1310 }
1311
1312 static int get_remote_default(const char *key, const char *value, void *priv)
1313 {
1314         if (strcmp(key, "remotes.default") == 0) {
1315                 int *found = priv;
1316                 *found = 1;
1317         }
1318         return 0;
1319 }
1320
1321 static int update(int argc, const char **argv)
1322 {
1323         int i, prune = 0;
1324         struct option options[] = {
1325                 OPT_BOOLEAN('p', "prune", &prune,
1326                             "prune remotes after fetching"),
1327                 OPT_END()
1328         };
1329         const char **fetch_argv;
1330         int fetch_argc = 0;
1331         int default_defined = 0;
1332
1333         fetch_argv = xmalloc(sizeof(char *) * (argc+5));
1334
1335         argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1336                              PARSE_OPT_KEEP_ARGV0);
1337
1338         fetch_argv[fetch_argc++] = "fetch";
1339
1340         if (prune)
1341                 fetch_argv[fetch_argc++] = "--prune";
1342         if (verbose)
1343                 fetch_argv[fetch_argc++] = "-v";
1344         fetch_argv[fetch_argc++] = "--multiple";
1345         if (argc < 2)
1346                 fetch_argv[fetch_argc++] = "default";
1347         for (i = 1; i < argc; i++)
1348                 fetch_argv[fetch_argc++] = argv[i];
1349
1350         if (strcmp(fetch_argv[fetch_argc-1], "default") == 0) {
1351                 git_config(get_remote_default, &default_defined);
1352                 if (!default_defined)
1353                         fetch_argv[fetch_argc-1] = "--all";
1354         }
1355
1356         fetch_argv[fetch_argc] = NULL;
1357
1358         return run_command_v_opt(fetch_argv, RUN_GIT_CMD);
1359 }
1360
1361 static int remove_all_fetch_refspecs(const char *remote, const char *key)
1362 {
1363         return git_config_set_multivar(key, NULL, NULL, 1);
1364 }
1365
1366 static int add_branches(struct remote *remote, const char **branches,
1367                         const char *key)
1368 {
1369         const char *remotename = remote->name;
1370         int mirror = remote->mirror;
1371         struct strbuf refspec = STRBUF_INIT;
1372
1373         for (; *branches; branches++)
1374                 if (add_branch(key, *branches, remotename, mirror, &refspec)) {
1375                         strbuf_release(&refspec);
1376                         return 1;
1377                 }
1378
1379         strbuf_release(&refspec);
1380         return 0;
1381 }
1382
1383 static int set_remote_branches(const char *remotename, const char **branches,
1384                                 int add_mode)
1385 {
1386         struct strbuf key = STRBUF_INIT;
1387         struct remote *remote;
1388
1389         strbuf_addf(&key, "remote.%s.fetch", remotename);
1390
1391         if (!remote_is_configured(remotename))
1392                 die(_("No such remote '%s'"), remotename);
1393         remote = remote_get(remotename);
1394
1395         if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
1396                 strbuf_release(&key);
1397                 return 1;
1398         }
1399         if (add_branches(remote, branches, key.buf)) {
1400                 strbuf_release(&key);
1401                 return 1;
1402         }
1403
1404         strbuf_release(&key);
1405         return 0;
1406 }
1407
1408 static int set_branches(int argc, const char **argv)
1409 {
1410         int add_mode = 0;
1411         struct option options[] = {
1412                 OPT_BOOLEAN('\0', "add", &add_mode, "add branch"),
1413                 OPT_END()
1414         };
1415
1416         argc = parse_options(argc, argv, NULL, options,
1417                              builtin_remote_setbranches_usage, 0);
1418         if (argc == 0) {
1419                 error(_("no remote specified"));
1420                 usage_with_options(builtin_remote_setbranches_usage, options);
1421         }
1422         argv[argc] = NULL;
1423
1424         return set_remote_branches(argv[0], argv + 1, add_mode);
1425 }
1426
1427 static int set_url(int argc, const char **argv)
1428 {
1429         int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1430         int matches = 0, negative_matches = 0;
1431         const char *remotename = NULL;
1432         const char *newurl = NULL;
1433         const char *oldurl = NULL;
1434         struct remote *remote;
1435         regex_t old_regex;
1436         const char **urlset;
1437         int urlset_nr;
1438         struct strbuf name_buf = STRBUF_INIT;
1439         struct option options[] = {
1440                 OPT_BOOLEAN('\0', "push", &push_mode,
1441                             "manipulate push URLs"),
1442                 OPT_BOOLEAN('\0', "add", &add_mode,
1443                             "add URL"),
1444                 OPT_BOOLEAN('\0', "delete", &delete_mode,
1445                             "delete URLs"),
1446                 OPT_END()
1447         };
1448         argc = parse_options(argc, argv, NULL, options, builtin_remote_seturl_usage,
1449                              PARSE_OPT_KEEP_ARGV0);
1450
1451         if (add_mode && delete_mode)
1452                 die(_("--add --delete doesn't make sense"));
1453
1454         if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1455                 usage_with_options(builtin_remote_seturl_usage, options);
1456
1457         remotename = argv[1];
1458         newurl = argv[2];
1459         if (argc > 3)
1460                 oldurl = argv[3];
1461
1462         if (delete_mode)
1463                 oldurl = newurl;
1464
1465         if (!remote_is_configured(remotename))
1466                 die(_("No such remote '%s'"), remotename);
1467         remote = remote_get(remotename);
1468
1469         if (push_mode) {
1470                 strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1471                 urlset = remote->pushurl;
1472                 urlset_nr = remote->pushurl_nr;
1473         } else {
1474                 strbuf_addf(&name_buf, "remote.%s.url", remotename);
1475                 urlset = remote->url;
1476                 urlset_nr = remote->url_nr;
1477         }
1478
1479         /* Special cases that add new entry. */
1480         if ((!oldurl && !delete_mode) || add_mode) {
1481                 if (add_mode)
1482                         git_config_set_multivar(name_buf.buf, newurl,
1483                                 "^$", 0);
1484                 else
1485                         git_config_set(name_buf.buf, newurl);
1486                 strbuf_release(&name_buf);
1487                 return 0;
1488         }
1489
1490         /* Old URL specified. Demand that one matches. */
1491         if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1492                 die(_("Invalid old URL pattern: %s"), oldurl);
1493
1494         for (i = 0; i < urlset_nr; i++)
1495                 if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1496                         matches++;
1497                 else
1498                         negative_matches++;
1499         if (!delete_mode && !matches)
1500                 die(_("No such URL found: %s"), oldurl);
1501         if (delete_mode && !negative_matches && !push_mode)
1502                 die(_("Will not delete all non-push URLs"));
1503
1504         regfree(&old_regex);
1505
1506         if (!delete_mode)
1507                 git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1508         else
1509                 git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1510         return 0;
1511 }
1512
1513 static int get_one_entry(struct remote *remote, void *priv)
1514 {
1515         struct string_list *list = priv;
1516         struct strbuf url_buf = STRBUF_INIT;
1517         const char **url;
1518         int i, url_nr;
1519
1520         if (remote->url_nr > 0) {
1521                 strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1522                 string_list_append(list, remote->name)->util =
1523                                 strbuf_detach(&url_buf, NULL);
1524         } else
1525                 string_list_append(list, remote->name)->util = NULL;
1526         if (remote->pushurl_nr) {
1527                 url = remote->pushurl;
1528                 url_nr = remote->pushurl_nr;
1529         } else {
1530                 url = remote->url;
1531                 url_nr = remote->url_nr;
1532         }
1533         for (i = 0; i < url_nr; i++)
1534         {
1535                 strbuf_addf(&url_buf, "%s (push)", url[i]);
1536                 string_list_append(list, remote->name)->util =
1537                                 strbuf_detach(&url_buf, NULL);
1538         }
1539
1540         return 0;
1541 }
1542
1543 static int show_all(void)
1544 {
1545         struct string_list list = STRING_LIST_INIT_NODUP;
1546         int result;
1547
1548         list.strdup_strings = 1;
1549         result = for_each_remote(get_one_entry, &list);
1550
1551         if (!result) {
1552                 int i;
1553
1554                 sort_string_list(&list);
1555                 for (i = 0; i < list.nr; i++) {
1556                         struct string_list_item *item = list.items + i;
1557                         if (verbose)
1558                                 printf("%s\t%s\n", item->string,
1559                                         item->util ? (const char *)item->util : "");
1560                         else {
1561                                 if (i && !strcmp((item - 1)->string, item->string))
1562                                         continue;
1563                                 printf("%s\n", item->string);
1564                         }
1565                 }
1566         }
1567         string_list_clear(&list, 1);
1568         return result;
1569 }
1570
1571 int cmd_remote(int argc, const char **argv, const char *prefix)
1572 {
1573         struct option options[] = {
1574                 OPT__VERBOSE(&verbose, "be verbose; must be placed before a subcommand"),
1575                 OPT_END()
1576         };
1577         int result;
1578
1579         argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1580                 PARSE_OPT_STOP_AT_NON_OPTION);
1581
1582         if (argc < 1)
1583                 result = show_all();
1584         else if (!strcmp(argv[0], "add"))
1585                 result = add(argc, argv);
1586         else if (!strcmp(argv[0], "rename"))
1587                 result = mv(argc, argv);
1588         else if (!strcmp(argv[0], "rm"))
1589                 result = rm(argc, argv);
1590         else if (!strcmp(argv[0], "set-head"))
1591                 result = set_head(argc, argv);
1592         else if (!strcmp(argv[0], "set-branches"))
1593                 result = set_branches(argc, argv);
1594         else if (!strcmp(argv[0], "set-url"))
1595                 result = set_url(argc, argv);
1596         else if (!strcmp(argv[0], "show"))
1597                 result = show(argc, argv);
1598         else if (!strcmp(argv[0], "prune"))
1599                 result = prune(argc, argv);
1600         else if (!strcmp(argv[0], "update"))
1601                 result = update(argc, argv);
1602         else {
1603                 error(_("Unknown subcommand: %s"), argv[0]);
1604                 usage_with_options(builtin_remote_usage, options);
1605         }
1606
1607         return result ? 1 : 0;
1608 }