Adjust for 2.19.x series
[git] / builtin / remote.c
1 #include "builtin.h"
2 #include "config.h"
3 #include "parse-options.h"
4 #include "transport.h"
5 #include "remote.h"
6 #include "string-list.h"
7 #include "strbuf.h"
8 #include "run-command.h"
9 #include "refs.h"
10 #include "refspec.h"
11 #include "object-store.h"
12 #include "argv-array.h"
13
14 static const char * const builtin_remote_usage[] = {
15         N_("git remote [-v | --verbose]"),
16         N_("git remote add [-t <branch>] [-m <master>] [-f] [--tags | --no-tags] [--mirror=<fetch|push>] <name> <url>"),
17         N_("git remote rename <old> <new>"),
18         N_("git remote remove <name>"),
19         N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
20         N_("git remote [-v | --verbose] show [-n] <name>"),
21         N_("git remote prune [-n | --dry-run] <name>"),
22         N_("git remote [-v | --verbose] update [-p | --prune] [(<group> | <remote>)...]"),
23         N_("git remote set-branches [--add] <name> <branch>..."),
24         N_("git remote get-url [--push] [--all] <name>"),
25         N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
26         N_("git remote set-url --add <name> <newurl>"),
27         N_("git remote set-url --delete <name> <url>"),
28         NULL
29 };
30
31 static const char * const builtin_remote_add_usage[] = {
32         N_("git remote add [<options>] <name> <url>"),
33         NULL
34 };
35
36 static const char * const builtin_remote_rename_usage[] = {
37         N_("git remote rename <old> <new>"),
38         NULL
39 };
40
41 static const char * const builtin_remote_rm_usage[] = {
42         N_("git remote remove <name>"),
43         NULL
44 };
45
46 static const char * const builtin_remote_sethead_usage[] = {
47         N_("git remote set-head <name> (-a | --auto | -d | --delete | <branch>)"),
48         NULL
49 };
50
51 static const char * const builtin_remote_setbranches_usage[] = {
52         N_("git remote set-branches <name> <branch>..."),
53         N_("git remote set-branches --add <name> <branch>..."),
54         NULL
55 };
56
57 static const char * const builtin_remote_show_usage[] = {
58         N_("git remote show [<options>] <name>"),
59         NULL
60 };
61
62 static const char * const builtin_remote_prune_usage[] = {
63         N_("git remote prune [<options>] <name>"),
64         NULL
65 };
66
67 static const char * const builtin_remote_update_usage[] = {
68         N_("git remote update [<options>] [<group> | <remote>]..."),
69         NULL
70 };
71
72 static const char * const builtin_remote_geturl_usage[] = {
73         N_("git remote get-url [--push] [--all] <name>"),
74         NULL
75 };
76
77 static const char * const builtin_remote_seturl_usage[] = {
78         N_("git remote set-url [--push] <name> <newurl> [<oldurl>]"),
79         N_("git remote set-url --add <name> <newurl>"),
80         N_("git remote set-url --delete <name> <url>"),
81         NULL
82 };
83
84 #define GET_REF_STATES (1<<0)
85 #define GET_HEAD_NAMES (1<<1)
86 #define GET_PUSH_REF_STATES (1<<2)
87
88 static int verbose;
89
90 static int fetch_remote(const char *name)
91 {
92         const char *argv[] = { "fetch", name, NULL, NULL };
93         if (verbose) {
94                 argv[1] = "-v";
95                 argv[2] = name;
96         }
97         printf_ln(_("Updating %s"), name);
98         if (run_command_v_opt(argv, RUN_GIT_CMD))
99                 return error(_("Could not fetch %s"), name);
100         return 0;
101 }
102
103 enum {
104         TAGS_UNSET = 0,
105         TAGS_DEFAULT = 1,
106         TAGS_SET = 2
107 };
108
109 #define MIRROR_NONE 0
110 #define MIRROR_FETCH 1
111 #define MIRROR_PUSH 2
112 #define MIRROR_BOTH (MIRROR_FETCH|MIRROR_PUSH)
113
114 static void add_branch(const char *key, const char *branchname,
115                        const char *remotename, int mirror, struct strbuf *tmp)
116 {
117         strbuf_reset(tmp);
118         strbuf_addch(tmp, '+');
119         if (mirror)
120                 strbuf_addf(tmp, "refs/%s:refs/%s",
121                                 branchname, branchname);
122         else
123                 strbuf_addf(tmp, "refs/heads/%s:refs/remotes/%s/%s",
124                                 branchname, remotename, branchname);
125         git_config_set_multivar(key, tmp->buf, "^$", 0);
126 }
127
128 static const char mirror_advice[] =
129 N_("--mirror is dangerous and deprecated; please\n"
130    "\t use --mirror=fetch or --mirror=push instead");
131
132 static int parse_mirror_opt(const struct option *opt, const char *arg, int not)
133 {
134         unsigned *mirror = opt->value;
135         if (not)
136                 *mirror = MIRROR_NONE;
137         else if (!arg) {
138                 warning("%s", _(mirror_advice));
139                 *mirror = MIRROR_BOTH;
140         }
141         else if (!strcmp(arg, "fetch"))
142                 *mirror = MIRROR_FETCH;
143         else if (!strcmp(arg, "push"))
144                 *mirror = MIRROR_PUSH;
145         else
146                 return error(_("unknown mirror argument: %s"), arg);
147         return 0;
148 }
149
150 static int add(int argc, const char **argv)
151 {
152         int fetch = 0, fetch_tags = TAGS_DEFAULT;
153         unsigned mirror = MIRROR_NONE;
154         struct string_list track = STRING_LIST_INIT_NODUP;
155         const char *master = NULL;
156         struct remote *remote;
157         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
158         const char *name, *url;
159         int i;
160
161         struct option options[] = {
162                 OPT_BOOL('f', "fetch", &fetch, N_("fetch the remote branches")),
163                 OPT_SET_INT(0, "tags", &fetch_tags,
164                             N_("import all tags and associated objects when fetching"),
165                             TAGS_SET),
166                 OPT_SET_INT(0, NULL, &fetch_tags,
167                             N_("or do not fetch any tag at all (--no-tags)"), TAGS_UNSET),
168                 OPT_STRING_LIST('t', "track", &track, N_("branch"),
169                                 N_("branch(es) to track")),
170                 OPT_STRING('m', "master", &master, N_("branch"), N_("master branch")),
171                 { OPTION_CALLBACK, 0, "mirror", &mirror, "(push|fetch)",
172                         N_("set up remote as a mirror to push to or fetch from"),
173                         PARSE_OPT_OPTARG | PARSE_OPT_COMP_ARG, parse_mirror_opt },
174                 OPT_END()
175         };
176
177         argc = parse_options(argc, argv, NULL, options, builtin_remote_add_usage,
178                              0);
179
180         if (argc != 2)
181                 usage_with_options(builtin_remote_add_usage, options);
182
183         if (mirror && master)
184                 die(_("specifying a master branch makes no sense with --mirror"));
185         if (mirror && !(mirror & MIRROR_FETCH) && track.nr)
186                 die(_("specifying branches to track makes sense only with fetch mirrors"));
187
188         name = argv[0];
189         url = argv[1];
190
191         remote = remote_get(name);
192         if (remote_is_configured(remote, 1))
193                 die(_("remote %s already exists."), name);
194
195         strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
196         if (!valid_fetch_refspec(buf2.buf))
197                 die(_("'%s' is not a valid remote name"), name);
198
199         strbuf_addf(&buf, "remote.%s.url", name);
200         git_config_set(buf.buf, url);
201
202         if (!mirror || mirror & MIRROR_FETCH) {
203                 strbuf_reset(&buf);
204                 strbuf_addf(&buf, "remote.%s.fetch", name);
205                 if (track.nr == 0)
206                         string_list_append(&track, "*");
207                 for (i = 0; i < track.nr; i++) {
208                         add_branch(buf.buf, track.items[i].string,
209                                    name, mirror, &buf2);
210                 }
211         }
212
213         if (mirror & MIRROR_PUSH) {
214                 strbuf_reset(&buf);
215                 strbuf_addf(&buf, "remote.%s.mirror", name);
216                 git_config_set(buf.buf, "true");
217         }
218
219         if (fetch_tags != TAGS_DEFAULT) {
220                 strbuf_reset(&buf);
221                 strbuf_addf(&buf, "remote.%s.tagopt", name);
222                 git_config_set(buf.buf,
223                                fetch_tags == TAGS_SET ? "--tags" : "--no-tags");
224         }
225
226         if (fetch && fetch_remote(name))
227                 return 1;
228
229         if (master) {
230                 strbuf_reset(&buf);
231                 strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
232
233                 strbuf_reset(&buf2);
234                 strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
235
236                 if (create_symref(buf.buf, buf2.buf, "remote add"))
237                         return error(_("Could not setup master '%s'"), master);
238         }
239
240         strbuf_release(&buf);
241         strbuf_release(&buf2);
242         string_list_clear(&track, 0);
243
244         return 0;
245 }
246
247 struct branch_info {
248         char *remote_name;
249         struct string_list merge;
250         enum {
251                 NO_REBASE, NORMAL_REBASE, INTERACTIVE_REBASE, REBASE_MERGES
252         } rebase;
253 };
254
255 static struct string_list branch_list = STRING_LIST_INIT_NODUP;
256
257 static const char *abbrev_ref(const char *name, const char *prefix)
258 {
259         skip_prefix(name, prefix, &name);
260         return name;
261 }
262 #define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
263
264 static int config_read_branches(const char *key, const char *value, void *cb)
265 {
266         if (starts_with(key, "branch.")) {
267                 const char *orig_key = key;
268                 char *name;
269                 struct string_list_item *item;
270                 struct branch_info *info;
271                 enum { REMOTE, MERGE, REBASE } type;
272                 size_t key_len;
273
274                 key += 7;
275                 if (strip_suffix(key, ".remote", &key_len)) {
276                         name = xmemdupz(key, key_len);
277                         type = REMOTE;
278                 } else if (strip_suffix(key, ".merge", &key_len)) {
279                         name = xmemdupz(key, key_len);
280                         type = MERGE;
281                 } else if (strip_suffix(key, ".rebase", &key_len)) {
282                         name = xmemdupz(key, key_len);
283                         type = REBASE;
284                 } else
285                         return 0;
286
287                 item = string_list_insert(&branch_list, name);
288
289                 if (!item->util)
290                         item->util = xcalloc(1, sizeof(struct branch_info));
291                 info = item->util;
292                 if (type == REMOTE) {
293                         if (info->remote_name)
294                                 warning(_("more than one %s"), orig_key);
295                         info->remote_name = xstrdup(value);
296                 } else if (type == MERGE) {
297                         char *space = strchr(value, ' ');
298                         value = abbrev_branch(value);
299                         while (space) {
300                                 char *merge;
301                                 merge = xstrndup(value, space - value);
302                                 string_list_append(&info->merge, merge);
303                                 value = abbrev_branch(space + 1);
304                                 space = strchr(value, ' ');
305                         }
306                         string_list_append(&info->merge, xstrdup(value));
307                 } else {
308                         int v = git_parse_maybe_bool(value);
309                         if (v >= 0)
310                                 info->rebase = v;
311                         else if (!strcmp(value, "preserve"))
312                                 info->rebase = NORMAL_REBASE;
313                         else if (!strcmp(value, "merges"))
314                                 info->rebase = REBASE_MERGES;
315                         else if (!strcmp(value, "interactive"))
316                                 info->rebase = INTERACTIVE_REBASE;
317                 }
318         }
319         return 0;
320 }
321
322 static void read_branches(void)
323 {
324         if (branch_list.nr)
325                 return;
326         git_config(config_read_branches, NULL);
327 }
328
329 struct ref_states {
330         struct remote *remote;
331         struct string_list new_refs, stale, tracked, heads, push;
332         int queried;
333 };
334
335 static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
336 {
337         struct ref *fetch_map = NULL, **tail = &fetch_map;
338         struct ref *ref, *stale_refs;
339         int i;
340
341         for (i = 0; i < states->remote->fetch.nr; i++)
342                 if (get_fetch_map(remote_refs, &states->remote->fetch.items[i], &tail, 1))
343                         die(_("Could not get fetch map for refspec %s"),
344                                 states->remote->fetch.raw[i]);
345
346         states->new_refs.strdup_strings = 1;
347         states->tracked.strdup_strings = 1;
348         states->stale.strdup_strings = 1;
349         for (ref = fetch_map; ref; ref = ref->next) {
350                 if (!ref->peer_ref || !ref_exists(ref->peer_ref->name))
351                         string_list_append(&states->new_refs, abbrev_branch(ref->name));
352                 else
353                         string_list_append(&states->tracked, abbrev_branch(ref->name));
354         }
355         stale_refs = get_stale_heads(&states->remote->fetch, 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         string_list_sort(&states->new_refs);
365         string_list_sort(&states->tracked);
366         string_list_sort(&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, MATCH_REFS_NONE);
396
397         states->push.strdup_strings = 1;
398         for (ref = push_map; ref; ref = ref->next) {
399                 struct string_list_item *item;
400                 struct push_info *info;
401
402                 if (!ref->peer_ref)
403                         continue;
404                 oidcpy(&ref->new_oid, &ref->peer_ref->new_oid);
405
406                 item = string_list_append(&states->push,
407                                           abbrev_branch(ref->peer_ref->name));
408                 item->util = xcalloc(1, sizeof(struct push_info));
409                 info = item->util;
410                 info->forced = ref->force;
411                 info->dest = xstrdup(abbrev_branch(ref->name));
412
413                 if (is_null_oid(&ref->new_oid)) {
414                         info->status = PUSH_STATUS_DELETE;
415                 } else if (!oidcmp(&ref->old_oid, &ref->new_oid))
416                         info->status = PUSH_STATUS_UPTODATE;
417                 else if (is_null_oid(&ref->old_oid))
418                         info->status = PUSH_STATUS_CREATE;
419                 else if (has_object_file(&ref->old_oid) &&
420                          ref_newer(&ref->new_oid, &ref->old_oid))
421                         info->status = PUSH_STATUS_FASTFORWARD;
422                 else
423                         info->status = PUSH_STATUS_OUTOFDATE;
424         }
425         free_refs(local_refs);
426         free_refs(push_map);
427         return 0;
428 }
429
430 static int get_push_ref_states_noquery(struct ref_states *states)
431 {
432         int i;
433         struct remote *remote = states->remote;
434         struct string_list_item *item;
435         struct push_info *info;
436
437         if (remote->mirror)
438                 return 0;
439
440         states->push.strdup_strings = 1;
441         if (!remote->push.nr) {
442                 item = string_list_append(&states->push, _("(matching)"));
443                 info = item->util = xcalloc(1, sizeof(struct push_info));
444                 info->status = PUSH_STATUS_NOTQUERIED;
445                 info->dest = xstrdup(item->string);
446         }
447         for (i = 0; i < remote->push.nr; i++) {
448                 const struct refspec_item *spec = &remote->push.items[i];
449                 if (spec->matching)
450                         item = string_list_append(&states->push, _("(matching)"));
451                 else if (strlen(spec->src))
452                         item = string_list_append(&states->push, spec->src);
453                 else
454                         item = string_list_append(&states->push, _("(delete)"));
455
456                 info = item->util = xcalloc(1, sizeof(struct push_info));
457                 info->forced = spec->force;
458                 info->status = PUSH_STATUS_NOTQUERIED;
459                 info->dest = xstrdup(spec->dst ? spec->dst : item->string);
460         }
461         return 0;
462 }
463
464 static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
465 {
466         struct ref *ref, *matches;
467         struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
468         struct refspec_item refspec;
469
470         refspec.force = 0;
471         refspec.pattern = 1;
472         refspec.src = refspec.dst = "refs/heads/*";
473         states->heads.strdup_strings = 1;
474         get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
475         matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
476                                     fetch_map, 1);
477         for (ref = matches; ref; ref = ref->next)
478                 string_list_append(&states->heads, abbrev_branch(ref->name));
479
480         free_refs(fetch_map);
481         free_refs(matches);
482
483         return 0;
484 }
485
486 struct known_remote {
487         struct known_remote *next;
488         struct remote *remote;
489 };
490
491 struct known_remotes {
492         struct remote *to_delete;
493         struct known_remote *list;
494 };
495
496 static int add_known_remote(struct remote *remote, void *cb_data)
497 {
498         struct known_remotes *all = cb_data;
499         struct known_remote *r;
500
501         if (!strcmp(all->to_delete->name, remote->name))
502                 return 0;
503
504         r = xmalloc(sizeof(*r));
505         r->remote = remote;
506         r->next = all->list;
507         all->list = r;
508         return 0;
509 }
510
511 struct branches_for_remote {
512         struct remote *remote;
513         struct string_list *branches, *skipped;
514         struct known_remotes *keep;
515 };
516
517 static int add_branch_for_removal(const char *refname,
518         const struct object_id *oid, int flags, void *cb_data)
519 {
520         struct branches_for_remote *branches = cb_data;
521         struct refspec_item refspec;
522         struct known_remote *kr;
523
524         memset(&refspec, 0, sizeof(refspec));
525         refspec.dst = (char *)refname;
526         if (remote_find_tracking(branches->remote, &refspec))
527                 return 0;
528
529         /* don't delete a branch if another remote also uses it */
530         for (kr = branches->keep->list; kr; kr = kr->next) {
531                 memset(&refspec, 0, sizeof(refspec));
532                 refspec.dst = (char *)refname;
533                 if (!remote_find_tracking(kr->remote, &refspec))
534                         return 0;
535         }
536
537         /* don't delete non-remote-tracking refs */
538         if (!starts_with(refname, "refs/remotes/")) {
539                 /* advise user how to delete local branches */
540                 if (starts_with(refname, "refs/heads/"))
541                         string_list_append(branches->skipped,
542                                            abbrev_branch(refname));
543                 /* silently skip over other non-remote refs */
544                 return 0;
545         }
546
547         string_list_append(branches->branches, refname);
548
549         return 0;
550 }
551
552 struct rename_info {
553         const char *old_name;
554         const char *new_name;
555         struct string_list *remote_branches;
556 };
557
558 static int read_remote_branches(const char *refname,
559         const struct object_id *oid, int flags, void *cb_data)
560 {
561         struct rename_info *rename = cb_data;
562         struct strbuf buf = STRBUF_INIT;
563         struct string_list_item *item;
564         int flag;
565         const char *symref;
566
567         strbuf_addf(&buf, "refs/remotes/%s/", rename->old_name);
568         if (starts_with(refname, buf.buf)) {
569                 item = string_list_append(rename->remote_branches, refname);
570                 symref = resolve_ref_unsafe(refname, RESOLVE_REF_READING,
571                                             NULL, &flag);
572                 if (symref && (flag & REF_ISSYMREF))
573                         item->util = xstrdup(symref);
574                 else
575                         item->util = NULL;
576         }
577         strbuf_release(&buf);
578
579         return 0;
580 }
581
582 static int migrate_file(struct remote *remote)
583 {
584         struct strbuf buf = STRBUF_INIT;
585         int i;
586
587         strbuf_addf(&buf, "remote.%s.url", remote->name);
588         for (i = 0; i < remote->url_nr; i++)
589                 git_config_set_multivar(buf.buf, remote->url[i], "^$", 0);
590         strbuf_reset(&buf);
591         strbuf_addf(&buf, "remote.%s.push", remote->name);
592         for (i = 0; i < remote->push.raw_nr; i++)
593                 git_config_set_multivar(buf.buf, remote->push.raw[i], "^$", 0);
594         strbuf_reset(&buf);
595         strbuf_addf(&buf, "remote.%s.fetch", remote->name);
596         for (i = 0; i < remote->fetch.raw_nr; i++)
597                 git_config_set_multivar(buf.buf, remote->fetch.raw[i], "^$", 0);
598         if (remote->origin == REMOTE_REMOTES)
599                 unlink_or_warn(git_path("remotes/%s", remote->name));
600         else if (remote->origin == REMOTE_BRANCHES)
601                 unlink_or_warn(git_path("branches/%s", remote->name));
602         strbuf_release(&buf);
603
604         return 0;
605 }
606
607 static int mv(int argc, const char **argv)
608 {
609         struct option options[] = {
610                 OPT_END()
611         };
612         struct remote *oldremote, *newremote;
613         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT,
614                 old_remote_context = STRBUF_INIT;
615         struct string_list remote_branches = STRING_LIST_INIT_DUP;
616         struct rename_info rename;
617         int i, refspec_updated = 0;
618
619         if (argc != 3)
620                 usage_with_options(builtin_remote_rename_usage, options);
621
622         rename.old_name = argv[1];
623         rename.new_name = argv[2];
624         rename.remote_branches = &remote_branches;
625
626         oldremote = remote_get(rename.old_name);
627         if (!remote_is_configured(oldremote, 1))
628                 die(_("No such remote: %s"), rename.old_name);
629
630         if (!strcmp(rename.old_name, rename.new_name) && oldremote->origin != REMOTE_CONFIG)
631                 return migrate_file(oldremote);
632
633         newremote = remote_get(rename.new_name);
634         if (remote_is_configured(newremote, 1))
635                 die(_("remote %s already exists."), rename.new_name);
636
637         strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new_name);
638         if (!valid_fetch_refspec(buf.buf))
639                 die(_("'%s' is not a valid remote name"), rename.new_name);
640
641         strbuf_reset(&buf);
642         strbuf_addf(&buf, "remote.%s", rename.old_name);
643         strbuf_addf(&buf2, "remote.%s", rename.new_name);
644         if (git_config_rename_section(buf.buf, buf2.buf) < 1)
645                 return error(_("Could not rename config section '%s' to '%s'"),
646                                 buf.buf, buf2.buf);
647
648         strbuf_reset(&buf);
649         strbuf_addf(&buf, "remote.%s.fetch", rename.new_name);
650         git_config_set_multivar(buf.buf, NULL, NULL, 1);
651         strbuf_addf(&old_remote_context, ":refs/remotes/%s/", rename.old_name);
652         for (i = 0; i < oldremote->fetch.raw_nr; i++) {
653                 char *ptr;
654
655                 strbuf_reset(&buf2);
656                 strbuf_addstr(&buf2, oldremote->fetch.raw[i]);
657                 ptr = strstr(buf2.buf, old_remote_context.buf);
658                 if (ptr) {
659                         refspec_updated = 1;
660                         strbuf_splice(&buf2,
661                                       ptr-buf2.buf + strlen(":refs/remotes/"),
662                                       strlen(rename.old_name), rename.new_name,
663                                       strlen(rename.new_name));
664                 } else
665                         warning(_("Not updating non-default fetch refspec\n"
666                                   "\t%s\n"
667                                   "\tPlease update the configuration manually if necessary."),
668                                 buf2.buf);
669
670                 git_config_set_multivar(buf.buf, buf2.buf, "^$", 0);
671         }
672
673         read_branches();
674         for (i = 0; i < branch_list.nr; i++) {
675                 struct string_list_item *item = branch_list.items + i;
676                 struct branch_info *info = item->util;
677                 if (info->remote_name && !strcmp(info->remote_name, rename.old_name)) {
678                         strbuf_reset(&buf);
679                         strbuf_addf(&buf, "branch.%s.remote", item->string);
680                         git_config_set(buf.buf, rename.new_name);
681                 }
682         }
683
684         if (!refspec_updated)
685                 return 0;
686
687         /*
688          * First remove symrefs, then rename the rest, finally create
689          * the new symrefs.
690          */
691         for_each_ref(read_remote_branches, &rename);
692         for (i = 0; i < remote_branches.nr; i++) {
693                 struct string_list_item *item = remote_branches.items + i;
694                 int flag = 0;
695                 struct object_id oid;
696
697                 read_ref_full(item->string, RESOLVE_REF_READING, &oid, &flag);
698                 if (!(flag & REF_ISSYMREF))
699                         continue;
700                 if (delete_ref(NULL, item->string, NULL, REF_NO_DEREF))
701                         die(_("deleting '%s' failed"), item->string);
702         }
703         for (i = 0; i < remote_branches.nr; i++) {
704                 struct string_list_item *item = remote_branches.items + i;
705
706                 if (item->util)
707                         continue;
708                 strbuf_reset(&buf);
709                 strbuf_addstr(&buf, item->string);
710                 strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old_name),
711                                 rename.new_name, strlen(rename.new_name));
712                 strbuf_reset(&buf2);
713                 strbuf_addf(&buf2, "remote: renamed %s to %s",
714                                 item->string, buf.buf);
715                 if (rename_ref(item->string, buf.buf, buf2.buf))
716                         die(_("renaming '%s' failed"), item->string);
717         }
718         for (i = 0; i < remote_branches.nr; i++) {
719                 struct string_list_item *item = remote_branches.items + i;
720
721                 if (!item->util)
722                         continue;
723                 strbuf_reset(&buf);
724                 strbuf_addstr(&buf, item->string);
725                 strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old_name),
726                                 rename.new_name, strlen(rename.new_name));
727                 strbuf_reset(&buf2);
728                 strbuf_addstr(&buf2, item->util);
729                 strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old_name),
730                                 rename.new_name, strlen(rename.new_name));
731                 strbuf_reset(&buf3);
732                 strbuf_addf(&buf3, "remote: renamed %s to %s",
733                                 item->string, buf.buf);
734                 if (create_symref(buf.buf, buf2.buf, buf3.buf))
735                         die(_("creating '%s' failed"), buf.buf);
736         }
737         string_list_clear(&remote_branches, 1);
738         return 0;
739 }
740
741 static int rm(int argc, const char **argv)
742 {
743         struct option options[] = {
744                 OPT_END()
745         };
746         struct remote *remote;
747         struct strbuf buf = STRBUF_INIT;
748         struct known_remotes known_remotes = { NULL, NULL };
749         struct string_list branches = STRING_LIST_INIT_DUP;
750         struct string_list skipped = STRING_LIST_INIT_DUP;
751         struct branches_for_remote cb_data;
752         int i, result;
753
754         memset(&cb_data, 0, sizeof(cb_data));
755         cb_data.branches = &branches;
756         cb_data.skipped = &skipped;
757         cb_data.keep = &known_remotes;
758
759         if (argc != 2)
760                 usage_with_options(builtin_remote_rm_usage, options);
761
762         remote = remote_get(argv[1]);
763         if (!remote_is_configured(remote, 1))
764                 die(_("No such remote: %s"), argv[1]);
765
766         known_remotes.to_delete = remote;
767         for_each_remote(add_known_remote, &known_remotes);
768
769         read_branches();
770         for (i = 0; i < branch_list.nr; i++) {
771                 struct string_list_item *item = branch_list.items + i;
772                 struct branch_info *info = item->util;
773                 if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
774                         const char *keys[] = { "remote", "merge", NULL }, **k;
775                         for (k = keys; *k; k++) {
776                                 strbuf_reset(&buf);
777                                 strbuf_addf(&buf, "branch.%s.%s",
778                                                 item->string, *k);
779                                 result = git_config_set_gently(buf.buf, NULL);
780                                 if (result && result != CONFIG_NOTHING_SET)
781                                         die(_("could not unset '%s'"), buf.buf);
782                         }
783                 }
784         }
785
786         /*
787          * We cannot just pass a function to for_each_ref() which deletes
788          * the branches one by one, since for_each_ref() relies on cached
789          * refs, which are invalidated when deleting a branch.
790          */
791         cb_data.remote = remote;
792         result = for_each_ref(add_branch_for_removal, &cb_data);
793         strbuf_release(&buf);
794
795         if (!result)
796                 result = delete_refs("remote: remove", &branches, REF_NO_DEREF);
797         string_list_clear(&branches, 0);
798
799         if (skipped.nr) {
800                 fprintf_ln(stderr,
801                            Q_("Note: A branch outside the refs/remotes/ hierarchy was not removed;\n"
802                               "to delete it, use:",
803                               "Note: Some branches outside the refs/remotes/ hierarchy were not removed;\n"
804                               "to delete them, use:",
805                               skipped.nr));
806                 for (i = 0; i < skipped.nr; i++)
807                         fprintf(stderr, "  git branch -d %s\n",
808                                 skipped.items[i].string);
809         }
810         string_list_clear(&skipped, 0);
811
812         if (!result) {
813                 strbuf_addf(&buf, "remote.%s", remote->name);
814                 if (git_config_rename_section(buf.buf, NULL) < 1)
815                         return error(_("Could not remove config section '%s'"), buf.buf);
816         }
817
818         return result;
819 }
820
821 static void clear_push_info(void *util, const char *string)
822 {
823         struct push_info *info = util;
824         free(info->dest);
825         free(info);
826 }
827
828 static void free_remote_ref_states(struct ref_states *states)
829 {
830         string_list_clear(&states->new_refs, 0);
831         string_list_clear(&states->stale, 1);
832         string_list_clear(&states->tracked, 0);
833         string_list_clear(&states->heads, 0);
834         string_list_clear_func(&states->push, clear_push_info);
835 }
836
837 static int append_ref_to_tracked_list(const char *refname,
838         const struct object_id *oid, int flags, void *cb_data)
839 {
840         struct ref_states *states = cb_data;
841         struct refspec_item refspec;
842
843         if (flags & REF_ISSYMREF)
844                 return 0;
845
846         memset(&refspec, 0, sizeof(refspec));
847         refspec.dst = (char *)refname;
848         if (!remote_find_tracking(states->remote, &refspec))
849                 string_list_append(&states->tracked, abbrev_branch(refspec.src));
850
851         return 0;
852 }
853
854 static int get_remote_ref_states(const char *name,
855                                  struct ref_states *states,
856                                  int query)
857 {
858         struct transport *transport;
859         const struct ref *remote_refs;
860
861         states->remote = remote_get(name);
862         if (!states->remote)
863                 return error(_("No such remote: %s"), name);
864
865         read_branches();
866
867         if (query) {
868                 transport = transport_get(states->remote, states->remote->url_nr > 0 ?
869                         states->remote->url[0] : NULL);
870                 remote_refs = transport_get_remote_refs(transport, NULL);
871                 transport_disconnect(transport);
872
873                 states->queried = 1;
874                 if (query & GET_REF_STATES)
875                         get_ref_states(remote_refs, states);
876                 if (query & GET_HEAD_NAMES)
877                         get_head_names(remote_refs, states);
878                 if (query & GET_PUSH_REF_STATES)
879                         get_push_ref_states(remote_refs, states);
880         } else {
881                 for_each_ref(append_ref_to_tracked_list, states);
882                 string_list_sort(&states->tracked);
883                 get_push_ref_states_noquery(states);
884         }
885
886         return 0;
887 }
888
889 struct show_info {
890         struct string_list *list;
891         struct ref_states *states;
892         int width, width2;
893         int any_rebase;
894 };
895
896 static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
897 {
898         struct show_info *info = cb_data;
899         int n = strlen(item->string);
900         if (n > info->width)
901                 info->width = n;
902         string_list_insert(info->list, item->string);
903         return 0;
904 }
905
906 static int show_remote_info_item(struct string_list_item *item, void *cb_data)
907 {
908         struct show_info *info = cb_data;
909         struct ref_states *states = info->states;
910         const char *name = item->string;
911
912         if (states->queried) {
913                 const char *fmt = "%s";
914                 const char *arg = "";
915                 if (string_list_has_string(&states->new_refs, name)) {
916                         fmt = _(" new (next fetch will store in remotes/%s)");
917                         arg = states->remote->name;
918                 } else if (string_list_has_string(&states->tracked, name))
919                         arg = _(" tracked");
920                 else if (string_list_has_string(&states->stale, name))
921                         arg = _(" stale (use 'git remote prune' to remove)");
922                 else
923                         arg = _(" ???");
924                 printf("    %-*s", info->width, name);
925                 printf(fmt, arg);
926                 printf("\n");
927         } else
928                 printf("    %s\n", name);
929
930         return 0;
931 }
932
933 static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
934 {
935         struct show_info *show_info = cb_data;
936         struct ref_states *states = show_info->states;
937         struct branch_info *branch_info = branch_item->util;
938         struct string_list_item *item;
939         int n;
940
941         if (!branch_info->merge.nr || !branch_info->remote_name ||
942             strcmp(states->remote->name, branch_info->remote_name))
943                 return 0;
944         if ((n = strlen(branch_item->string)) > show_info->width)
945                 show_info->width = n;
946         if (branch_info->rebase)
947                 show_info->any_rebase = 1;
948
949         item = string_list_insert(show_info->list, branch_item->string);
950         item->util = branch_info;
951
952         return 0;
953 }
954
955 static int show_local_info_item(struct string_list_item *item, void *cb_data)
956 {
957         struct show_info *show_info = cb_data;
958         struct branch_info *branch_info = item->util;
959         struct string_list *merge = &branch_info->merge;
960         int width = show_info->width + 4;
961         int i;
962
963         if (branch_info->rebase && branch_info->merge.nr > 1) {
964                 error(_("invalid branch.%s.merge; cannot rebase onto > 1 branch"),
965                         item->string);
966                 return 0;
967         }
968
969         printf("    %-*s ", show_info->width, item->string);
970         if (branch_info->rebase) {
971                 const char *msg;
972                 if (branch_info->rebase == INTERACTIVE_REBASE)
973                         msg = _("rebases interactively onto remote %s");
974                 else if (branch_info->rebase == REBASE_MERGES)
975                         msg = _("rebases interactively (with merges) onto "
976                                 "remote %s");
977                 else
978                         msg = _("rebases onto remote %s");
979                 printf_ln(msg, merge->items[0].string);
980                 return 0;
981         } else if (show_info->any_rebase) {
982                 printf_ln(_(" merges with remote %s"), merge->items[0].string);
983                 width++;
984         } else {
985                 printf_ln(_("merges with remote %s"), merge->items[0].string);
986         }
987         for (i = 1; i < merge->nr; i++)
988                 printf(_("%-*s    and with remote %s\n"), width, "",
989                        merge->items[i].string);
990
991         return 0;
992 }
993
994 static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
995 {
996         struct show_info *show_info = cb_data;
997         struct push_info *push_info = push_item->util;
998         struct string_list_item *item;
999         int n;
1000         if ((n = strlen(push_item->string)) > show_info->width)
1001                 show_info->width = n;
1002         if ((n = strlen(push_info->dest)) > show_info->width2)
1003                 show_info->width2 = n;
1004         item = string_list_append(show_info->list, push_item->string);
1005         item->util = push_item->util;
1006         return 0;
1007 }
1008
1009 /*
1010  * Sorting comparison for a string list that has push_info
1011  * structs in its util field
1012  */
1013 static int cmp_string_with_push(const void *va, const void *vb)
1014 {
1015         const struct string_list_item *a = va;
1016         const struct string_list_item *b = vb;
1017         const struct push_info *a_push = a->util;
1018         const struct push_info *b_push = b->util;
1019         int cmp = strcmp(a->string, b->string);
1020         return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
1021 }
1022
1023 static int show_push_info_item(struct string_list_item *item, void *cb_data)
1024 {
1025         struct show_info *show_info = cb_data;
1026         struct push_info *push_info = item->util;
1027         const char *src = item->string, *status = NULL;
1028
1029         switch (push_info->status) {
1030         case PUSH_STATUS_CREATE:
1031                 status = _("create");
1032                 break;
1033         case PUSH_STATUS_DELETE:
1034                 status = _("delete");
1035                 src = _("(none)");
1036                 break;
1037         case PUSH_STATUS_UPTODATE:
1038                 status = _("up to date");
1039                 break;
1040         case PUSH_STATUS_FASTFORWARD:
1041                 status = _("fast-forwardable");
1042                 break;
1043         case PUSH_STATUS_OUTOFDATE:
1044                 status = _("local out of date");
1045                 break;
1046         case PUSH_STATUS_NOTQUERIED:
1047                 break;
1048         }
1049         if (status) {
1050                 if (push_info->forced)
1051                         printf_ln(_("    %-*s forces to %-*s (%s)"), show_info->width, src,
1052                                show_info->width2, push_info->dest, status);
1053                 else
1054                         printf_ln(_("    %-*s pushes to %-*s (%s)"), show_info->width, src,
1055                                show_info->width2, push_info->dest, status);
1056         } else {
1057                 if (push_info->forced)
1058                         printf_ln(_("    %-*s forces to %s"), show_info->width, src,
1059                                push_info->dest);
1060                 else
1061                         printf_ln(_("    %-*s pushes to %s"), show_info->width, src,
1062                                push_info->dest);
1063         }
1064         return 0;
1065 }
1066
1067 static int get_one_entry(struct remote *remote, void *priv)
1068 {
1069         struct string_list *list = priv;
1070         struct strbuf url_buf = STRBUF_INIT;
1071         const char **url;
1072         int i, url_nr;
1073
1074         if (remote->url_nr > 0) {
1075                 strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1076                 string_list_append(list, remote->name)->util =
1077                                 strbuf_detach(&url_buf, NULL);
1078         } else
1079                 string_list_append(list, remote->name)->util = NULL;
1080         if (remote->pushurl_nr) {
1081                 url = remote->pushurl;
1082                 url_nr = remote->pushurl_nr;
1083         } else {
1084                 url = remote->url;
1085                 url_nr = remote->url_nr;
1086         }
1087         for (i = 0; i < url_nr; i++)
1088         {
1089                 strbuf_addf(&url_buf, "%s (push)", url[i]);
1090                 string_list_append(list, remote->name)->util =
1091                                 strbuf_detach(&url_buf, NULL);
1092         }
1093
1094         return 0;
1095 }
1096
1097 static int show_all(void)
1098 {
1099         struct string_list list = STRING_LIST_INIT_NODUP;
1100         int result;
1101
1102         list.strdup_strings = 1;
1103         result = for_each_remote(get_one_entry, &list);
1104
1105         if (!result) {
1106                 int i;
1107
1108                 string_list_sort(&list);
1109                 for (i = 0; i < list.nr; i++) {
1110                         struct string_list_item *item = list.items + i;
1111                         if (verbose)
1112                                 printf("%s\t%s\n", item->string,
1113                                         item->util ? (const char *)item->util : "");
1114                         else {
1115                                 if (i && !strcmp((item - 1)->string, item->string))
1116                                         continue;
1117                                 printf("%s\n", item->string);
1118                         }
1119                 }
1120         }
1121         string_list_clear(&list, 1);
1122         return result;
1123 }
1124
1125 static int show(int argc, const char **argv)
1126 {
1127         int no_query = 0, result = 0, query_flag = 0;
1128         struct option options[] = {
1129                 OPT_BOOL('n', NULL, &no_query, N_("do not query remotes")),
1130                 OPT_END()
1131         };
1132         struct ref_states states;
1133         struct string_list info_list = STRING_LIST_INIT_NODUP;
1134         struct show_info info;
1135
1136         argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1137                              0);
1138
1139         if (argc < 1)
1140                 return show_all();
1141
1142         if (!no_query)
1143                 query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1144
1145         memset(&states, 0, sizeof(states));
1146         memset(&info, 0, sizeof(info));
1147         info.states = &states;
1148         info.list = &info_list;
1149         for (; argc; argc--, argv++) {
1150                 int i;
1151                 const char **url;
1152                 int url_nr;
1153
1154                 get_remote_ref_states(*argv, &states, query_flag);
1155
1156                 printf_ln(_("* remote %s"), *argv);
1157                 printf_ln(_("  Fetch URL: %s"), states.remote->url_nr > 0 ?
1158                        states.remote->url[0] : _("(no URL)"));
1159                 if (states.remote->pushurl_nr) {
1160                         url = states.remote->pushurl;
1161                         url_nr = states.remote->pushurl_nr;
1162                 } else {
1163                         url = states.remote->url;
1164                         url_nr = states.remote->url_nr;
1165                 }
1166                 for (i = 0; i < url_nr; i++)
1167                         /*
1168                          * TRANSLATORS: the colon ':' should align
1169                          * with the one in " Fetch URL: %s"
1170                          * translation.
1171                          */
1172                         printf_ln(_("  Push  URL: %s"), url[i]);
1173                 if (!i)
1174                         printf_ln(_("  Push  URL: %s"), _("(no URL)"));
1175                 if (no_query)
1176                         printf_ln(_("  HEAD branch: %s"), _("(not queried)"));
1177                 else if (!states.heads.nr)
1178                         printf_ln(_("  HEAD branch: %s"), _("(unknown)"));
1179                 else if (states.heads.nr == 1)
1180                         printf_ln(_("  HEAD branch: %s"), states.heads.items[0].string);
1181                 else {
1182                         printf(_("  HEAD branch (remote HEAD is ambiguous,"
1183                                  " may be one of the following):\n"));
1184                         for (i = 0; i < states.heads.nr; i++)
1185                                 printf("    %s\n", states.heads.items[i].string);
1186                 }
1187
1188                 /* remote branch info */
1189                 info.width = 0;
1190                 for_each_string_list(&states.new_refs, add_remote_to_show_info, &info);
1191                 for_each_string_list(&states.tracked, add_remote_to_show_info, &info);
1192                 for_each_string_list(&states.stale, add_remote_to_show_info, &info);
1193                 if (info.list->nr)
1194                         printf_ln(Q_("  Remote branch:%s",
1195                                      "  Remote branches:%s",
1196                                      info.list->nr),
1197                                   no_query ? _(" (status not queried)") : "");
1198                 for_each_string_list(info.list, show_remote_info_item, &info);
1199                 string_list_clear(info.list, 0);
1200
1201                 /* git pull info */
1202                 info.width = 0;
1203                 info.any_rebase = 0;
1204                 for_each_string_list(&branch_list, add_local_to_show_info, &info);
1205                 if (info.list->nr)
1206                         printf_ln(Q_("  Local branch configured for 'git pull':",
1207                                      "  Local branches configured for 'git pull':",
1208                                      info.list->nr));
1209                 for_each_string_list(info.list, show_local_info_item, &info);
1210                 string_list_clear(info.list, 0);
1211
1212                 /* git push info */
1213                 if (states.remote->mirror)
1214                         printf_ln(_("  Local refs will be mirrored by 'git push'"));
1215
1216                 info.width = info.width2 = 0;
1217                 for_each_string_list(&states.push, add_push_to_show_info, &info);
1218                 QSORT(info.list->items, info.list->nr, cmp_string_with_push);
1219                 if (info.list->nr)
1220                         printf_ln(Q_("  Local ref configured for 'git push'%s:",
1221                                      "  Local refs configured for 'git push'%s:",
1222                                      info.list->nr),
1223                                   no_query ? _(" (status not queried)") : "");
1224                 for_each_string_list(info.list, show_push_info_item, &info);
1225                 string_list_clear(info.list, 0);
1226
1227                 free_remote_ref_states(&states);
1228         }
1229
1230         return result;
1231 }
1232
1233 static int set_head(int argc, const char **argv)
1234 {
1235         int i, opt_a = 0, opt_d = 0, result = 0;
1236         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1237         char *head_name = NULL;
1238
1239         struct option options[] = {
1240                 OPT_BOOL('a', "auto", &opt_a,
1241                          N_("set refs/remotes/<name>/HEAD according to remote")),
1242                 OPT_BOOL('d', "delete", &opt_d,
1243                          N_("delete refs/remotes/<name>/HEAD")),
1244                 OPT_END()
1245         };
1246         argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1247                              0);
1248         if (argc)
1249                 strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1250
1251         if (!opt_a && !opt_d && argc == 2) {
1252                 head_name = xstrdup(argv[1]);
1253         } else if (opt_a && !opt_d && argc == 1) {
1254                 struct ref_states states;
1255                 memset(&states, 0, sizeof(states));
1256                 get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1257                 if (!states.heads.nr)
1258                         result |= error(_("Cannot determine remote HEAD"));
1259                 else if (states.heads.nr > 1) {
1260                         result |= error(_("Multiple remote HEAD branches. "
1261                                           "Please choose one explicitly with:"));
1262                         for (i = 0; i < states.heads.nr; i++)
1263                                 fprintf(stderr, "  git remote set-head %s %s\n",
1264                                         argv[0], states.heads.items[i].string);
1265                 } else
1266                         head_name = xstrdup(states.heads.items[0].string);
1267                 free_remote_ref_states(&states);
1268         } else if (opt_d && !opt_a && argc == 1) {
1269                 if (delete_ref(NULL, buf.buf, NULL, REF_NO_DEREF))
1270                         result |= error(_("Could not delete %s"), buf.buf);
1271         } else
1272                 usage_with_options(builtin_remote_sethead_usage, options);
1273
1274         if (head_name) {
1275                 strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1276                 /* make sure it's valid */
1277                 if (!ref_exists(buf2.buf))
1278                         result |= error(_("Not a valid ref: %s"), buf2.buf);
1279                 else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1280                         result |= error(_("Could not setup %s"), buf.buf);
1281                 if (opt_a)
1282                         printf("%s/HEAD set to %s\n", argv[0], head_name);
1283                 free(head_name);
1284         }
1285
1286         strbuf_release(&buf);
1287         strbuf_release(&buf2);
1288         return result;
1289 }
1290
1291 static int prune_remote(const char *remote, int dry_run)
1292 {
1293         int result = 0;
1294         struct ref_states states;
1295         struct string_list refs_to_prune = STRING_LIST_INIT_NODUP;
1296         struct string_list_item *item;
1297         const char *dangling_msg = dry_run
1298                 ? _(" %s will become dangling!")
1299                 : _(" %s has become dangling!");
1300
1301         memset(&states, 0, sizeof(states));
1302         get_remote_ref_states(remote, &states, GET_REF_STATES);
1303
1304         if (!states.stale.nr) {
1305                 free_remote_ref_states(&states);
1306                 return 0;
1307         }
1308
1309         printf_ln(_("Pruning %s"), remote);
1310         printf_ln(_("URL: %s"),
1311                   states.remote->url_nr
1312                   ? states.remote->url[0]
1313                   : _("(no URL)"));
1314
1315         for_each_string_list_item(item, &states.stale)
1316                 string_list_append(&refs_to_prune, item->util);
1317         string_list_sort(&refs_to_prune);
1318
1319         if (!dry_run)
1320                 result |= delete_refs("remote: prune", &refs_to_prune, 0);
1321
1322         for_each_string_list_item(item, &states.stale) {
1323                 const char *refname = item->util;
1324
1325                 if (dry_run)
1326                         printf_ln(_(" * [would prune] %s"),
1327                                abbrev_ref(refname, "refs/remotes/"));
1328                 else
1329                         printf_ln(_(" * [pruned] %s"),
1330                                abbrev_ref(refname, "refs/remotes/"));
1331         }
1332
1333         warn_dangling_symrefs(stdout, dangling_msg, &refs_to_prune);
1334
1335         string_list_clear(&refs_to_prune, 0);
1336         free_remote_ref_states(&states);
1337         return result;
1338 }
1339
1340 static int prune(int argc, const char **argv)
1341 {
1342         int dry_run = 0, result = 0;
1343         struct option options[] = {
1344                 OPT__DRY_RUN(&dry_run, N_("dry run")),
1345                 OPT_END()
1346         };
1347
1348         argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1349                              0);
1350
1351         if (argc < 1)
1352                 usage_with_options(builtin_remote_prune_usage, options);
1353
1354         for (; argc; argc--, argv++)
1355                 result |= prune_remote(*argv, dry_run);
1356
1357         return result;
1358 }
1359
1360 static int get_remote_default(const char *key, const char *value, void *priv)
1361 {
1362         if (strcmp(key, "remotes.default") == 0) {
1363                 int *found = priv;
1364                 *found = 1;
1365         }
1366         return 0;
1367 }
1368
1369 static int update(int argc, const char **argv)
1370 {
1371         int i, prune = -1;
1372         struct option options[] = {
1373                 OPT_BOOL('p', "prune", &prune,
1374                          N_("prune remotes after fetching")),
1375                 OPT_END()
1376         };
1377         struct argv_array fetch_argv = ARGV_ARRAY_INIT;
1378         int default_defined = 0;
1379         int retval;
1380
1381         argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1382                              PARSE_OPT_KEEP_ARGV0);
1383
1384         argv_array_push(&fetch_argv, "fetch");
1385
1386         if (prune != -1)
1387                 argv_array_push(&fetch_argv, prune ? "--prune" : "--no-prune");
1388         if (verbose)
1389                 argv_array_push(&fetch_argv, "-v");
1390         argv_array_push(&fetch_argv, "--multiple");
1391         if (argc < 2)
1392                 argv_array_push(&fetch_argv, "default");
1393         for (i = 1; i < argc; i++)
1394                 argv_array_push(&fetch_argv, argv[i]);
1395
1396         if (strcmp(fetch_argv.argv[fetch_argv.argc-1], "default") == 0) {
1397                 git_config(get_remote_default, &default_defined);
1398                 if (!default_defined) {
1399                         argv_array_pop(&fetch_argv);
1400                         argv_array_push(&fetch_argv, "--all");
1401                 }
1402         }
1403
1404         retval = run_command_v_opt(fetch_argv.argv, RUN_GIT_CMD);
1405         argv_array_clear(&fetch_argv);
1406         return retval;
1407 }
1408
1409 static int remove_all_fetch_refspecs(const char *remote, const char *key)
1410 {
1411         return git_config_set_multivar_gently(key, NULL, NULL, 1);
1412 }
1413
1414 static void add_branches(struct remote *remote, const char **branches,
1415                          const char *key)
1416 {
1417         const char *remotename = remote->name;
1418         int mirror = remote->mirror;
1419         struct strbuf refspec = STRBUF_INIT;
1420
1421         for (; *branches; branches++)
1422                 add_branch(key, *branches, remotename, mirror, &refspec);
1423
1424         strbuf_release(&refspec);
1425 }
1426
1427 static int set_remote_branches(const char *remotename, const char **branches,
1428                                 int add_mode)
1429 {
1430         struct strbuf key = STRBUF_INIT;
1431         struct remote *remote;
1432
1433         strbuf_addf(&key, "remote.%s.fetch", remotename);
1434
1435         remote = remote_get(remotename);
1436         if (!remote_is_configured(remote, 1))
1437                 die(_("No such remote '%s'"), remotename);
1438
1439         if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
1440                 strbuf_release(&key);
1441                 return 1;
1442         }
1443         add_branches(remote, branches, key.buf);
1444
1445         strbuf_release(&key);
1446         return 0;
1447 }
1448
1449 static int set_branches(int argc, const char **argv)
1450 {
1451         int add_mode = 0;
1452         struct option options[] = {
1453                 OPT_BOOL('\0', "add", &add_mode, N_("add branch")),
1454                 OPT_END()
1455         };
1456
1457         argc = parse_options(argc, argv, NULL, options,
1458                              builtin_remote_setbranches_usage, 0);
1459         if (argc == 0) {
1460                 error(_("no remote specified"));
1461                 usage_with_options(builtin_remote_setbranches_usage, options);
1462         }
1463         argv[argc] = NULL;
1464
1465         return set_remote_branches(argv[0], argv + 1, add_mode);
1466 }
1467
1468 static int get_url(int argc, const char **argv)
1469 {
1470         int i, push_mode = 0, all_mode = 0;
1471         const char *remotename = NULL;
1472         struct remote *remote;
1473         const char **url;
1474         int url_nr;
1475         struct option options[] = {
1476                 OPT_BOOL('\0', "push", &push_mode,
1477                          N_("query push URLs rather than fetch URLs")),
1478                 OPT_BOOL('\0', "all", &all_mode,
1479                          N_("return all URLs")),
1480                 OPT_END()
1481         };
1482         argc = parse_options(argc, argv, NULL, options, builtin_remote_geturl_usage, 0);
1483
1484         if (argc != 1)
1485                 usage_with_options(builtin_remote_geturl_usage, options);
1486
1487         remotename = argv[0];
1488
1489         remote = remote_get(remotename);
1490         if (!remote_is_configured(remote, 1))
1491                 die(_("No such remote '%s'"), remotename);
1492
1493         url_nr = 0;
1494         if (push_mode) {
1495                 url = remote->pushurl;
1496                 url_nr = remote->pushurl_nr;
1497         }
1498         /* else fetch mode */
1499
1500         /* Use the fetch URL when no push URLs were found or requested. */
1501         if (!url_nr) {
1502                 url = remote->url;
1503                 url_nr = remote->url_nr;
1504         }
1505
1506         if (!url_nr)
1507                 die(_("no URLs configured for remote '%s'"), remotename);
1508
1509         if (all_mode) {
1510                 for (i = 0; i < url_nr; i++)
1511                         printf_ln("%s", url[i]);
1512         } else {
1513                 printf_ln("%s", *url);
1514         }
1515
1516         return 0;
1517 }
1518
1519 static int set_url(int argc, const char **argv)
1520 {
1521         int i, push_mode = 0, add_mode = 0, delete_mode = 0;
1522         int matches = 0, negative_matches = 0;
1523         const char *remotename = NULL;
1524         const char *newurl = NULL;
1525         const char *oldurl = NULL;
1526         struct remote *remote;
1527         regex_t old_regex;
1528         const char **urlset;
1529         int urlset_nr;
1530         struct strbuf name_buf = STRBUF_INIT;
1531         struct option options[] = {
1532                 OPT_BOOL('\0', "push", &push_mode,
1533                          N_("manipulate push URLs")),
1534                 OPT_BOOL('\0', "add", &add_mode,
1535                          N_("add URL")),
1536                 OPT_BOOL('\0', "delete", &delete_mode,
1537                             N_("delete URLs")),
1538                 OPT_END()
1539         };
1540         argc = parse_options(argc, argv, NULL, options, builtin_remote_seturl_usage,
1541                              PARSE_OPT_KEEP_ARGV0);
1542
1543         if (add_mode && delete_mode)
1544                 die(_("--add --delete doesn't make sense"));
1545
1546         if (argc < 3 || argc > 4 || ((add_mode || delete_mode) && argc != 3))
1547                 usage_with_options(builtin_remote_seturl_usage, options);
1548
1549         remotename = argv[1];
1550         newurl = argv[2];
1551         if (argc > 3)
1552                 oldurl = argv[3];
1553
1554         if (delete_mode)
1555                 oldurl = newurl;
1556
1557         remote = remote_get(remotename);
1558         if (!remote_is_configured(remote, 1))
1559                 die(_("No such remote '%s'"), remotename);
1560
1561         if (push_mode) {
1562                 strbuf_addf(&name_buf, "remote.%s.pushurl", remotename);
1563                 urlset = remote->pushurl;
1564                 urlset_nr = remote->pushurl_nr;
1565         } else {
1566                 strbuf_addf(&name_buf, "remote.%s.url", remotename);
1567                 urlset = remote->url;
1568                 urlset_nr = remote->url_nr;
1569         }
1570
1571         /* Special cases that add new entry. */
1572         if ((!oldurl && !delete_mode) || add_mode) {
1573                 if (add_mode)
1574                         git_config_set_multivar(name_buf.buf, newurl,
1575                                                        "^$", 0);
1576                 else
1577                         git_config_set(name_buf.buf, newurl);
1578                 goto out;
1579         }
1580
1581         /* Old URL specified. Demand that one matches. */
1582         if (regcomp(&old_regex, oldurl, REG_EXTENDED))
1583                 die(_("Invalid old URL pattern: %s"), oldurl);
1584
1585         for (i = 0; i < urlset_nr; i++)
1586                 if (!regexec(&old_regex, urlset[i], 0, NULL, 0))
1587                         matches++;
1588                 else
1589                         negative_matches++;
1590         if (!delete_mode && !matches)
1591                 die(_("No such URL found: %s"), oldurl);
1592         if (delete_mode && !negative_matches && !push_mode)
1593                 die(_("Will not delete all non-push URLs"));
1594
1595         regfree(&old_regex);
1596
1597         if (!delete_mode)
1598                 git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1599         else
1600                 git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1601 out:
1602         strbuf_release(&name_buf);
1603         return 0;
1604 }
1605
1606 int cmd_remote(int argc, const char **argv, const char *prefix)
1607 {
1608         struct option options[] = {
1609                 OPT__VERBOSE(&verbose, N_("be verbose; must be placed before a subcommand")),
1610                 OPT_END()
1611         };
1612         int result;
1613
1614         argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1615                 PARSE_OPT_STOP_AT_NON_OPTION);
1616
1617         if (argc < 1)
1618                 result = show_all();
1619         else if (!strcmp(argv[0], "add"))
1620                 result = add(argc, argv);
1621         else if (!strcmp(argv[0], "rename"))
1622                 result = mv(argc, argv);
1623         else if (!strcmp(argv[0], "rm") || !strcmp(argv[0], "remove"))
1624                 result = rm(argc, argv);
1625         else if (!strcmp(argv[0], "set-head"))
1626                 result = set_head(argc, argv);
1627         else if (!strcmp(argv[0], "set-branches"))
1628                 result = set_branches(argc, argv);
1629         else if (!strcmp(argv[0], "get-url"))
1630                 result = get_url(argc, argv);
1631         else if (!strcmp(argv[0], "set-url"))
1632                 result = set_url(argc, argv);
1633         else if (!strcmp(argv[0], "show"))
1634                 result = show(argc, argv);
1635         else if (!strcmp(argv[0], "prune"))
1636                 result = prune(argc, argv);
1637         else if (!strcmp(argv[0], "update"))
1638                 result = update(argc, argv);
1639         else {
1640                 error(_("Unknown subcommand: %s"), argv[0]);
1641                 usage_with_options(builtin_remote_usage, options);
1642         }
1643
1644         return result ? 1 : 0;
1645 }