Andrew's git / gitweb.git / builtin-remote.c
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builtin-remote.con commit lstat_cache(): print a warning if doing ping-pong between cache types (7734f04)
   1#include "cache.h"
   2#include "parse-options.h"
   3#include "transport.h"
   4#include "remote.h"
   5#include "string-list.h"
   6#include "strbuf.h"
   7#include "run-command.h"
   8#include "refs.h"
   9
  10static const char * const builtin_remote_usage[] = {
  11        "git remote [-v | --verbose]",
  12        "git remote add [-t <branch>] [-m <master>] [-f] [--mirror] <name> <url>",
  13        "git remote rename <old> <new>",
  14        "git remote rm <name>",
  15        "git remote show [-n] <name>",
  16        "git remote prune [-n | --dry-run] <name>",
  17        "git remote [-v | --verbose] update [group]",
  18        NULL
  19};
  20
  21static int verbose;
  22
  23static int show_all(void);
  24
  25static inline int postfixcmp(const char *string, const char *postfix)
  26{
  27        int len1 = strlen(string), len2 = strlen(postfix);
  28        if (len1 < len2)
  29                return 1;
  30        return strcmp(string + len1 - len2, postfix);
  31}
  32
  33static int opt_parse_track(const struct option *opt, const char *arg, int not)
  34{
  35        struct string_list *list = opt->value;
  36        if (not)
  37                string_list_clear(list, 0);
  38        else
  39                string_list_append(arg, list);
  40        return 0;
  41}
  42
  43static int fetch_remote(const char *name)
  44{
  45        const char *argv[] = { "fetch", name, NULL, NULL };
  46        if (verbose) {
  47                argv[1] = "-v";
  48                argv[2] = name;
  49        }
  50        printf("Updating %s\n", name);
  51        if (run_command_v_opt(argv, RUN_GIT_CMD))
  52                return error("Could not fetch %s", name);
  53        return 0;
  54}
  55
  56static int add(int argc, const char **argv)
  57{
  58        int fetch = 0, mirror = 0;
  59        struct string_list track = { NULL, 0, 0 };
  60        const char *master = NULL;
  61        struct remote *remote;
  62        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
  63        const char *name, *url;
  64        int i;
  65
  66        struct option options[] = {
  67                OPT_GROUP("add specific options"),
  68                OPT_BOOLEAN('f', "fetch", &fetch, "fetch the remote branches"),
  69                OPT_CALLBACK('t', "track", &track, "branch",
  70                        "branch(es) to track", opt_parse_track),
  71                OPT_STRING('m', "master", &master, "branch", "master branch"),
  72                OPT_BOOLEAN(0, "mirror", &mirror, "no separate remotes"),
  73                OPT_END()
  74        };
  75
  76        argc = parse_options(argc, argv, options, builtin_remote_usage, 0);
  77
  78        if (argc < 2)
  79                usage_with_options(builtin_remote_usage, options);
  80
  81        name = argv[0];
  82        url = argv[1];
  83
  84        remote = remote_get(name);
  85        if (remote && (remote->url_nr > 1 || strcmp(name, remote->url[0]) ||
  86                        remote->fetch_refspec_nr))
  87                die("remote %s already exists.", name);
  88
  89        strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
  90        if (!valid_fetch_refspec(buf2.buf))
  91                die("'%s' is not a valid remote name", name);
  92
  93        strbuf_addf(&buf, "remote.%s.url", name);
  94        if (git_config_set(buf.buf, url))
  95                return 1;
  96
  97        strbuf_reset(&buf);
  98        strbuf_addf(&buf, "remote.%s.fetch", name);
  99
 100        if (track.nr == 0)
 101                string_list_append("*", &track);
 102        for (i = 0; i < track.nr; i++) {
 103                struct string_list_item *item = track.items + i;
 104
 105                strbuf_reset(&buf2);
 106                strbuf_addch(&buf2, '+');
 107                if (mirror)
 108                        strbuf_addf(&buf2, "refs/%s:refs/%s",
 109                                        item->string, item->string);
 110                else
 111                        strbuf_addf(&buf2, "refs/heads/%s:refs/remotes/%s/%s",
 112                                        item->string, name, item->string);
 113                if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 114                        return 1;
 115        }
 116
 117        if (mirror) {
 118                strbuf_reset(&buf);
 119                strbuf_addf(&buf, "remote.%s.mirror", name);
 120                if (git_config_set(buf.buf, "true"))
 121                        return 1;
 122        }
 123
 124        if (fetch && fetch_remote(name))
 125                return 1;
 126
 127        if (master) {
 128                strbuf_reset(&buf);
 129                strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
 130
 131                strbuf_reset(&buf2);
 132                strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
 133
 134                if (create_symref(buf.buf, buf2.buf, "remote add"))
 135                        return error("Could not setup master '%s'", master);
 136        }
 137
 138        strbuf_release(&buf);
 139        strbuf_release(&buf2);
 140        string_list_clear(&track, 0);
 141
 142        return 0;
 143}
 144
 145struct branch_info {
 146        char *remote;
 147        struct string_list merge;
 148};
 149
 150static struct string_list branch_list;
 151
 152static const char *abbrev_ref(const char *name, const char *prefix)
 153{
 154        const char *abbrev = skip_prefix(name, prefix);
 155        if (abbrev)
 156                return abbrev;
 157        return name;
 158}
 159#define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
 160
 161static int config_read_branches(const char *key, const char *value, void *cb)
 162{
 163        if (!prefixcmp(key, "branch.")) {
 164                char *name;
 165                struct string_list_item *item;
 166                struct branch_info *info;
 167                enum { REMOTE, MERGE } type;
 168
 169                key += 7;
 170                if (!postfixcmp(key, ".remote")) {
 171                        name = xstrndup(key, strlen(key) - 7);
 172                        type = REMOTE;
 173                } else if (!postfixcmp(key, ".merge")) {
 174                        name = xstrndup(key, strlen(key) - 6);
 175                        type = MERGE;
 176                } else
 177                        return 0;
 178
 179                item = string_list_insert(name, &branch_list);
 180
 181                if (!item->util)
 182                        item->util = xcalloc(sizeof(struct branch_info), 1);
 183                info = item->util;
 184                if (type == REMOTE) {
 185                        if (info->remote)
 186                                warning("more than one branch.%s", key);
 187                        info->remote = xstrdup(value);
 188                } else {
 189                        char *space = strchr(value, ' ');
 190                        value = abbrev_branch(value);
 191                        while (space) {
 192                                char *merge;
 193                                merge = xstrndup(value, space - value);
 194                                string_list_append(merge, &info->merge);
 195                                value = abbrev_branch(space + 1);
 196                                space = strchr(value, ' ');
 197                        }
 198                        string_list_append(xstrdup(value), &info->merge);
 199                }
 200        }
 201        return 0;
 202}
 203
 204static void read_branches(void)
 205{
 206        if (branch_list.nr)
 207                return;
 208        git_config(config_read_branches, NULL);
 209        sort_string_list(&branch_list);
 210}
 211
 212struct ref_states {
 213        struct remote *remote;
 214        struct string_list new, stale, tracked;
 215};
 216
 217static int handle_one_branch(const char *refname,
 218        const unsigned char *sha1, int flags, void *cb_data)
 219{
 220        struct ref_states *states = cb_data;
 221        struct refspec refspec;
 222
 223        memset(&refspec, 0, sizeof(refspec));
 224        refspec.dst = (char *)refname;
 225        if (!remote_find_tracking(states->remote, &refspec)) {
 226                struct string_list_item *item;
 227                const char *name = abbrev_branch(refspec.src);
 228                /* symbolic refs pointing nowhere were handled already */
 229                if ((flags & REF_ISSYMREF) ||
 230                                unsorted_string_list_has_string(&states->tracked,
 231                                        name) ||
 232                                unsorted_string_list_has_string(&states->new,
 233                                        name))
 234                        return 0;
 235                item = string_list_append(name, &states->stale);
 236                item->util = xstrdup(refname);
 237        }
 238        return 0;
 239}
 240
 241static int get_ref_states(const struct ref *ref, struct ref_states *states)
 242{
 243        struct ref *fetch_map = NULL, **tail = &fetch_map;
 244        int i;
 245
 246        for (i = 0; i < states->remote->fetch_refspec_nr; i++)
 247                if (get_fetch_map(ref, states->remote->fetch + i, &tail, 1))
 248                        die("Could not get fetch map for refspec %s",
 249                                states->remote->fetch_refspec[i]);
 250
 251        states->new.strdup_strings = states->tracked.strdup_strings = 1;
 252        for (ref = fetch_map; ref; ref = ref->next) {
 253                struct string_list *target = &states->tracked;
 254                unsigned char sha1[20];
 255                void *util = NULL;
 256
 257                if (!ref->peer_ref || read_ref(ref->peer_ref->name, sha1))
 258                        target = &states->new;
 259                else {
 260                        target = &states->tracked;
 261                        if (hashcmp(sha1, ref->new_sha1))
 262                                util = &states;
 263                }
 264                string_list_append(abbrev_branch(ref->name), target)->util = util;
 265        }
 266        free_refs(fetch_map);
 267
 268        for_each_ref(handle_one_branch, states);
 269        sort_string_list(&states->stale);
 270
 271        return 0;
 272}
 273
 274struct known_remote {
 275        struct known_remote *next;
 276        struct remote *remote;
 277};
 278
 279struct known_remotes {
 280        struct remote *to_delete;
 281        struct known_remote *list;
 282};
 283
 284static int add_known_remote(struct remote *remote, void *cb_data)
 285{
 286        struct known_remotes *all = cb_data;
 287        struct known_remote *r;
 288
 289        if (!strcmp(all->to_delete->name, remote->name))
 290                return 0;
 291
 292        r = xmalloc(sizeof(*r));
 293        r->remote = remote;
 294        r->next = all->list;
 295        all->list = r;
 296        return 0;
 297}
 298
 299struct branches_for_remote {
 300        struct remote *remote;
 301        struct string_list *branches, *skipped;
 302        struct known_remotes *keep;
 303};
 304
 305static int add_branch_for_removal(const char *refname,
 306        const unsigned char *sha1, int flags, void *cb_data)
 307{
 308        struct branches_for_remote *branches = cb_data;
 309        struct refspec refspec;
 310        struct string_list_item *item;
 311        struct known_remote *kr;
 312
 313        memset(&refspec, 0, sizeof(refspec));
 314        refspec.dst = (char *)refname;
 315        if (remote_find_tracking(branches->remote, &refspec))
 316                return 0;
 317
 318        /* don't delete a branch if another remote also uses it */
 319        for (kr = branches->keep->list; kr; kr = kr->next) {
 320                memset(&refspec, 0, sizeof(refspec));
 321                refspec.dst = (char *)refname;
 322                if (!remote_find_tracking(kr->remote, &refspec))
 323                        return 0;
 324        }
 325
 326        /* don't delete non-remote refs */
 327        if (prefixcmp(refname, "refs/remotes")) {
 328                /* advise user how to delete local branches */
 329                if (!prefixcmp(refname, "refs/heads/"))
 330                        string_list_append(abbrev_branch(refname),
 331                                           branches->skipped);
 332                /* silently skip over other non-remote refs */
 333                return 0;
 334        }
 335
 336        /* make sure that symrefs are deleted */
 337        if (flags & REF_ISSYMREF)
 338                return unlink(git_path("%s", refname));
 339
 340        item = string_list_append(refname, branches->branches);
 341        item->util = xmalloc(20);
 342        hashcpy(item->util, sha1);
 343
 344        return 0;
 345}
 346
 347struct rename_info {
 348        const char *old;
 349        const char *new;
 350        struct string_list *remote_branches;
 351};
 352
 353static int read_remote_branches(const char *refname,
 354        const unsigned char *sha1, int flags, void *cb_data)
 355{
 356        struct rename_info *rename = cb_data;
 357        struct strbuf buf = STRBUF_INIT;
 358        struct string_list_item *item;
 359        int flag;
 360        unsigned char orig_sha1[20];
 361        const char *symref;
 362
 363        strbuf_addf(&buf, "refs/remotes/%s", rename->old);
 364        if(!prefixcmp(refname, buf.buf)) {
 365                item = string_list_append(xstrdup(refname), rename->remote_branches);
 366                symref = resolve_ref(refname, orig_sha1, 1, &flag);
 367                if (flag & REF_ISSYMREF)
 368                        item->util = xstrdup(symref);
 369                else
 370                        item->util = NULL;
 371        }
 372
 373        return 0;
 374}
 375
 376static int migrate_file(struct remote *remote)
 377{
 378        struct strbuf buf = STRBUF_INIT;
 379        int i;
 380        char *path = NULL;
 381
 382        strbuf_addf(&buf, "remote.%s.url", remote->name);
 383        for (i = 0; i < remote->url_nr; i++)
 384                if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0))
 385                        return error("Could not append '%s' to '%s'",
 386                                        remote->url[i], buf.buf);
 387        strbuf_reset(&buf);
 388        strbuf_addf(&buf, "remote.%s.push", remote->name);
 389        for (i = 0; i < remote->push_refspec_nr; i++)
 390                if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0))
 391                        return error("Could not append '%s' to '%s'",
 392                                        remote->push_refspec[i], buf.buf);
 393        strbuf_reset(&buf);
 394        strbuf_addf(&buf, "remote.%s.fetch", remote->name);
 395        for (i = 0; i < remote->fetch_refspec_nr; i++)
 396                if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0))
 397                        return error("Could not append '%s' to '%s'",
 398                                        remote->fetch_refspec[i], buf.buf);
 399        if (remote->origin == REMOTE_REMOTES)
 400                path = git_path("remotes/%s", remote->name);
 401        else if (remote->origin == REMOTE_BRANCHES)
 402                path = git_path("branches/%s", remote->name);
 403        if (path && unlink(path))
 404                warning("failed to remove '%s'", path);
 405        return 0;
 406}
 407
 408static int mv(int argc, const char **argv)
 409{
 410        struct option options[] = {
 411                OPT_END()
 412        };
 413        struct remote *oldremote, *newremote;
 414        struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT;
 415        struct string_list remote_branches = { NULL, 0, 0, 0 };
 416        struct rename_info rename;
 417        int i;
 418
 419        if (argc != 3)
 420                usage_with_options(builtin_remote_usage, options);
 421
 422        rename.old = argv[1];
 423        rename.new = argv[2];
 424        rename.remote_branches = &remote_branches;
 425
 426        oldremote = remote_get(rename.old);
 427        if (!oldremote)
 428                die("No such remote: %s", rename.old);
 429
 430        if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
 431                return migrate_file(oldremote);
 432
 433        newremote = remote_get(rename.new);
 434        if (newremote && (newremote->url_nr > 1 || newremote->fetch_refspec_nr))
 435                die("remote %s already exists.", rename.new);
 436
 437        strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
 438        if (!valid_fetch_refspec(buf.buf))
 439                die("'%s' is not a valid remote name", rename.new);
 440
 441        strbuf_reset(&buf);
 442        strbuf_addf(&buf, "remote.%s", rename.old);
 443        strbuf_addf(&buf2, "remote.%s", rename.new);
 444        if (git_config_rename_section(buf.buf, buf2.buf) < 1)
 445                return error("Could not rename config section '%s' to '%s'",
 446                                buf.buf, buf2.buf);
 447
 448        strbuf_reset(&buf);
 449        strbuf_addf(&buf, "remote.%s.fetch", rename.new);
 450        if (git_config_set_multivar(buf.buf, NULL, NULL, 1))
 451                return error("Could not remove config section '%s'", buf.buf);
 452        for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
 453                char *ptr;
 454
 455                strbuf_reset(&buf2);
 456                strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
 457                ptr = strstr(buf2.buf, rename.old);
 458                if (ptr)
 459                        strbuf_splice(&buf2, ptr-buf2.buf, strlen(rename.old),
 460                                        rename.new, strlen(rename.new));
 461                if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
 462                        return error("Could not append '%s'", buf.buf);
 463        }
 464
 465        read_branches();
 466        for (i = 0; i < branch_list.nr; i++) {
 467                struct string_list_item *item = branch_list.items + i;
 468                struct branch_info *info = item->util;
 469                if (info->remote && !strcmp(info->remote, rename.old)) {
 470                        strbuf_reset(&buf);
 471                        strbuf_addf(&buf, "branch.%s.remote", item->string);
 472                        if (git_config_set(buf.buf, rename.new)) {
 473                                return error("Could not set '%s'", buf.buf);
 474                        }
 475                }
 476        }
 477
 478        /*
 479         * First remove symrefs, then rename the rest, finally create
 480         * the new symrefs.
 481         */
 482        for_each_ref(read_remote_branches, &rename);
 483        for (i = 0; i < remote_branches.nr; i++) {
 484                struct string_list_item *item = remote_branches.items + i;
 485                int flag = 0;
 486                unsigned char sha1[20];
 487                const char *symref;
 488
 489                symref = resolve_ref(item->string, sha1, 1, &flag);
 490                if (!(flag & REF_ISSYMREF))
 491                        continue;
 492                if (delete_ref(item->string, NULL, REF_NODEREF))
 493                        die("deleting '%s' failed", item->string);
 494        }
 495        for (i = 0; i < remote_branches.nr; i++) {
 496                struct string_list_item *item = remote_branches.items + i;
 497
 498                if (item->util)
 499                        continue;
 500                strbuf_reset(&buf);
 501                strbuf_addstr(&buf, item->string);
 502                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 503                                rename.new, strlen(rename.new));
 504                strbuf_reset(&buf2);
 505                strbuf_addf(&buf2, "remote: renamed %s to %s",
 506                                item->string, buf.buf);
 507                if (rename_ref(item->string, buf.buf, buf2.buf))
 508                        die("renaming '%s' failed", item->string);
 509        }
 510        for (i = 0; i < remote_branches.nr; i++) {
 511                struct string_list_item *item = remote_branches.items + i;
 512
 513                if (!item->util)
 514                        continue;
 515                strbuf_reset(&buf);
 516                strbuf_addstr(&buf, item->string);
 517                strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
 518                                rename.new, strlen(rename.new));
 519                strbuf_reset(&buf2);
 520                strbuf_addstr(&buf2, item->util);
 521                strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
 522                                rename.new, strlen(rename.new));
 523                strbuf_reset(&buf3);
 524                strbuf_addf(&buf3, "remote: renamed %s to %s",
 525                                item->string, buf.buf);
 526                if (create_symref(buf.buf, buf2.buf, buf3.buf))
 527                        die("creating '%s' failed", buf.buf);
 528        }
 529        return 0;
 530}
 531
 532static int remove_branches(struct string_list *branches)
 533{
 534        int i, result = 0;
 535        for (i = 0; i < branches->nr; i++) {
 536                struct string_list_item *item = branches->items + i;
 537                const char *refname = item->string;
 538                unsigned char *sha1 = item->util;
 539
 540                if (delete_ref(refname, sha1, 0))
 541                        result |= error("Could not remove branch %s", refname);
 542        }
 543        return result;
 544}
 545
 546static int rm(int argc, const char **argv)
 547{
 548        struct option options[] = {
 549                OPT_END()
 550        };
 551        struct remote *remote;
 552        struct strbuf buf = STRBUF_INIT;
 553        struct known_remotes known_remotes = { NULL, NULL };
 554        struct string_list branches = { NULL, 0, 0, 1 };
 555        struct string_list skipped = { NULL, 0, 0, 1 };
 556        struct branches_for_remote cb_data = {
 557                NULL, &branches, &skipped, &known_remotes
 558        };
 559        int i, result;
 560
 561        if (argc != 2)
 562                usage_with_options(builtin_remote_usage, options);
 563
 564        remote = remote_get(argv[1]);
 565        if (!remote)
 566                die("No such remote: %s", argv[1]);
 567
 568        known_remotes.to_delete = remote;
 569        for_each_remote(add_known_remote, &known_remotes);
 570
 571        strbuf_addf(&buf, "remote.%s", remote->name);
 572        if (git_config_rename_section(buf.buf, NULL) < 1)
 573                return error("Could not remove config section '%s'", buf.buf);
 574
 575        read_branches();
 576        for (i = 0; i < branch_list.nr; i++) {
 577                struct string_list_item *item = branch_list.items + i;
 578                struct branch_info *info = item->util;
 579                if (info->remote && !strcmp(info->remote, remote->name)) {
 580                        const char *keys[] = { "remote", "merge", NULL }, **k;
 581                        for (k = keys; *k; k++) {
 582                                strbuf_reset(&buf);
 583                                strbuf_addf(&buf, "branch.%s.%s",
 584                                                item->string, *k);
 585                                if (git_config_set(buf.buf, NULL)) {
 586                                        strbuf_release(&buf);
 587                                        return -1;
 588                                }
 589                        }
 590                }
 591        }
 592
 593        /*
 594         * We cannot just pass a function to for_each_ref() which deletes
 595         * the branches one by one, since for_each_ref() relies on cached
 596         * refs, which are invalidated when deleting a branch.
 597         */
 598        cb_data.remote = remote;
 599        result = for_each_ref(add_branch_for_removal, &cb_data);
 600        strbuf_release(&buf);
 601
 602        if (!result)
 603                result = remove_branches(&branches);
 604        string_list_clear(&branches, 1);
 605
 606        if (skipped.nr) {
 607                fprintf(stderr, skipped.nr == 1 ?
 608                        "Note: A non-remote branch was not removed; "
 609                        "to delete it, use:\n" :
 610                        "Note: Non-remote branches were not removed; "
 611                        "to delete them, use:\n");
 612                for (i = 0; i < skipped.nr; i++)
 613                        fprintf(stderr, "  git branch -d %s\n",
 614                                skipped.items[i].string);
 615        }
 616        string_list_clear(&skipped, 0);
 617
 618        return result;
 619}
 620
 621static void show_list(const char *title, struct string_list *list,
 622                      const char *extra_arg)
 623{
 624        int i;
 625
 626        if (!list->nr)
 627                return;
 628
 629        printf(title, list->nr > 1 ? "es" : "", extra_arg);
 630        printf("\n");
 631        for (i = 0; i < list->nr; i++)
 632                printf("    %s\n", list->items[i].string);
 633}
 634
 635static int get_remote_ref_states(const char *name,
 636                                 struct ref_states *states,
 637                                 int query)
 638{
 639        struct transport *transport;
 640        const struct ref *ref;
 641
 642        states->remote = remote_get(name);
 643        if (!states->remote)
 644                return error("No such remote: %s", name);
 645
 646        read_branches();
 647
 648        if (query) {
 649                transport = transport_get(NULL, states->remote->url_nr > 0 ?
 650                        states->remote->url[0] : NULL);
 651                ref = transport_get_remote_refs(transport);
 652                transport_disconnect(transport);
 653
 654                get_ref_states(ref, states);
 655        }
 656
 657        return 0;
 658}
 659
 660static int append_ref_to_tracked_list(const char *refname,
 661        const unsigned char *sha1, int flags, void *cb_data)
 662{
 663        struct ref_states *states = cb_data;
 664        struct refspec refspec;
 665
 666        memset(&refspec, 0, sizeof(refspec));
 667        refspec.dst = (char *)refname;
 668        if (!remote_find_tracking(states->remote, &refspec))
 669                string_list_append(abbrev_branch(refspec.src), &states->tracked);
 670
 671        return 0;
 672}
 673
 674static int show(int argc, const char **argv)
 675{
 676        int no_query = 0, result = 0;
 677        struct option options[] = {
 678                OPT_GROUP("show specific options"),
 679                OPT_BOOLEAN('n', NULL, &no_query, "do not query remotes"),
 680                OPT_END()
 681        };
 682        struct ref_states states;
 683
 684        argc = parse_options(argc, argv, options, builtin_remote_usage, 0);
 685
 686        if (argc < 1)
 687                return show_all();
 688
 689        memset(&states, 0, sizeof(states));
 690        for (; argc; argc--, argv++) {
 691                int i;
 692
 693                get_remote_ref_states(*argv, &states, !no_query);
 694
 695                printf("* remote %s\n  URL: %s\n", *argv,
 696                        states.remote->url_nr > 0 ?
 697                                states.remote->url[0] : "(no URL)");
 698
 699                for (i = 0; i < branch_list.nr; i++) {
 700                        struct string_list_item *branch = branch_list.items + i;
 701                        struct branch_info *info = branch->util;
 702                        int j;
 703
 704                        if (!info->merge.nr || strcmp(*argv, info->remote))
 705                                continue;
 706                        printf("  Remote branch%s merged with 'git pull' "
 707                                "while on branch %s\n   ",
 708                                info->merge.nr > 1 ? "es" : "",
 709                                branch->string);
 710                        for (j = 0; j < info->merge.nr; j++)
 711                                printf(" %s", info->merge.items[j].string);
 712                        printf("\n");
 713                }
 714
 715                if (!no_query) {
 716                        show_list("  New remote branch%s (next fetch "
 717                                "will store in remotes/%s)",
 718                                &states.new, states.remote->name);
 719                        show_list("  Stale tracking branch%s (use 'git remote "
 720                                "prune')", &states.stale, "");
 721                }
 722
 723                if (no_query)
 724                        for_each_ref(append_ref_to_tracked_list, &states);
 725                show_list("  Tracked remote branch%s", &states.tracked, "");
 726
 727                if (states.remote->push_refspec_nr) {
 728                        printf("  Local branch%s pushed with 'git push'\n",
 729                                states.remote->push_refspec_nr > 1 ?
 730                                        "es" : "");
 731                        for (i = 0; i < states.remote->push_refspec_nr; i++) {
 732                                struct refspec *spec = states.remote->push + i;
 733                                printf("    %s%s%s%s\n",
 734                                       spec->force ? "+" : "",
 735                                       abbrev_branch(spec->src),
 736                                       spec->dst ? ":" : "",
 737                                       spec->dst ? abbrev_branch(spec->dst) : "");
 738                        }
 739                }
 740
 741                /* NEEDSWORK: free remote */
 742                string_list_clear(&states.new, 0);
 743                string_list_clear(&states.stale, 0);
 744                string_list_clear(&states.tracked, 0);
 745        }
 746
 747        return result;
 748}
 749
 750static int prune(int argc, const char **argv)
 751{
 752        int dry_run = 0, result = 0;
 753        struct option options[] = {
 754                OPT_GROUP("prune specific options"),
 755                OPT__DRY_RUN(&dry_run),
 756                OPT_END()
 757        };
 758        struct ref_states states;
 759
 760        argc = parse_options(argc, argv, options, builtin_remote_usage, 0);
 761
 762        if (argc < 1)
 763                usage_with_options(builtin_remote_usage, options);
 764
 765        memset(&states, 0, sizeof(states));
 766        for (; argc; argc--, argv++) {
 767                int i;
 768
 769                get_remote_ref_states(*argv, &states, 1);
 770
 771                if (states.stale.nr) {
 772                        printf("Pruning %s\n", *argv);
 773                        printf("URL: %s\n",
 774                               states.remote->url_nr
 775                               ? states.remote->url[0]
 776                               : "(no URL)");
 777                }
 778
 779                for (i = 0; i < states.stale.nr; i++) {
 780                        const char *refname = states.stale.items[i].util;
 781
 782                        if (!dry_run)
 783                                result |= delete_ref(refname, NULL, 0);
 784
 785                        printf(" * [%s] %s\n", dry_run ? "would prune" : "pruned",
 786                               abbrev_ref(refname, "refs/remotes/"));
 787                }
 788
 789                /* NEEDSWORK: free remote */
 790                string_list_clear(&states.new, 0);
 791                string_list_clear(&states.stale, 0);
 792                string_list_clear(&states.tracked, 0);
 793        }
 794
 795        return result;
 796}
 797
 798static int get_one_remote_for_update(struct remote *remote, void *priv)
 799{
 800        struct string_list *list = priv;
 801        if (!remote->skip_default_update)
 802                string_list_append(remote->name, list);
 803        return 0;
 804}
 805
 806struct remote_group {
 807        const char *name;
 808        struct string_list *list;
 809} remote_group;
 810
 811static int get_remote_group(const char *key, const char *value, void *cb)
 812{
 813        if (!prefixcmp(key, "remotes.") &&
 814                        !strcmp(key + 8, remote_group.name)) {
 815                /* split list by white space */
 816                int space = strcspn(value, " \t\n");
 817                while (*value) {
 818                        if (space > 1)
 819                                string_list_append(xstrndup(value, space),
 820                                                remote_group.list);
 821                        value += space + (value[space] != '\0');
 822                        space = strcspn(value, " \t\n");
 823                }
 824        }
 825
 826        return 0;
 827}
 828
 829static int update(int argc, const char **argv)
 830{
 831        int i, result = 0;
 832        struct string_list list = { NULL, 0, 0, 0 };
 833        static const char *default_argv[] = { NULL, "default", NULL };
 834
 835        if (argc < 2) {
 836                argc = 2;
 837                argv = default_argv;
 838        }
 839
 840        remote_group.list = &list;
 841        for (i = 1; i < argc; i++) {
 842                remote_group.name = argv[i];
 843                result = git_config(get_remote_group, NULL);
 844        }
 845
 846        if (!result && !list.nr  && argc == 2 && !strcmp(argv[1], "default"))
 847                result = for_each_remote(get_one_remote_for_update, &list);
 848
 849        for (i = 0; i < list.nr; i++)
 850                result |= fetch_remote(list.items[i].string);
 851
 852        /* all names were strdup()ed or strndup()ed */
 853        list.strdup_strings = 1;
 854        string_list_clear(&list, 0);
 855
 856        return result;
 857}
 858
 859static int get_one_entry(struct remote *remote, void *priv)
 860{
 861        struct string_list *list = priv;
 862
 863        if (remote->url_nr > 0) {
 864                int i;
 865
 866                for (i = 0; i < remote->url_nr; i++)
 867                        string_list_append(remote->name, list)->util = (void *)remote->url[i];
 868        } else
 869                string_list_append(remote->name, list)->util = NULL;
 870
 871        return 0;
 872}
 873
 874static int show_all(void)
 875{
 876        struct string_list list = { NULL, 0, 0 };
 877        int result = for_each_remote(get_one_entry, &list);
 878
 879        if (!result) {
 880                int i;
 881
 882                sort_string_list(&list);
 883                for (i = 0; i < list.nr; i++) {
 884                        struct string_list_item *item = list.items + i;
 885                        if (verbose)
 886                                printf("%s\t%s\n", item->string,
 887                                        item->util ? (const char *)item->util : "");
 888                        else {
 889                                if (i && !strcmp((item - 1)->string, item->string))
 890                                        continue;
 891                                printf("%s\n", item->string);
 892                        }
 893                }
 894        }
 895        return result;
 896}
 897
 898int cmd_remote(int argc, const char **argv, const char *prefix)
 899{
 900        struct option options[] = {
 901                OPT__VERBOSE(&verbose),
 902                OPT_END()
 903        };
 904        int result;
 905
 906        argc = parse_options(argc, argv, options, builtin_remote_usage,
 907                PARSE_OPT_STOP_AT_NON_OPTION);
 908
 909        if (argc < 1)
 910                result = show_all();
 911        else if (!strcmp(argv[0], "add"))
 912                result = add(argc, argv);
 913        else if (!strcmp(argv[0], "rename"))
 914                result = mv(argc, argv);
 915        else if (!strcmp(argv[0], "rm"))
 916                result = rm(argc, argv);
 917        else if (!strcmp(argv[0], "show"))
 918                result = show(argc, argv);
 919        else if (!strcmp(argv[0], "prune"))
 920                result = prune(argc, argv);
 921        else if (!strcmp(argv[0], "update"))
 922                result = update(argc, argv);
 923        else {
 924                error("Unknown subcommand: %s", argv[0]);
 925                usage_with_options(builtin_remote_usage, options);
 926        }
 927
 928        return result ? 1 : 0;
 929}