Merge branch 'rj/maint-t9700'
[git] / builtin-remote.c
1 #include "cache.h"
2 #include "parse-options.h"
3 #include "transport.h"
4 #include "remote.h"
5 #include "string-list.h"
6 #include "strbuf.h"
7 #include "run-command.h"
8 #include "refs.h"
9
10 static const char * const builtin_remote_usage[] = {
11         "git remote [-v | --verbose]",
12         "git remote add [-t <branch>] [-m <master>] [-f] [--mirror] <name> <url>",
13         "git remote rename <old> <new>",
14         "git remote rm <name>",
15         "git remote set-head <name> (-a | -d | <branch>)",
16         "git remote [-v | --verbose] show [-n] <name>",
17         "git remote prune [-n | --dry-run] <name>",
18         "git remote [-v | --verbose] update [-p | --prune] [group]",
19         NULL
20 };
21
22 static const char * const builtin_remote_add_usage[] = {
23         "git remote add [<options>] <name> <url>",
24         NULL
25 };
26
27 static const char * const builtin_remote_rename_usage[] = {
28         "git remote rename <old> <new>",
29         NULL
30 };
31
32 static const char * const builtin_remote_rm_usage[] = {
33         "git remote rm <name>",
34         NULL
35 };
36
37 static const char * const builtin_remote_sethead_usage[] = {
38         "git remote set-head <name> (-a | -d | <branch>])",
39         NULL
40 };
41
42 static const char * const builtin_remote_show_usage[] = {
43         "git remote show [<options>] <name>",
44         NULL
45 };
46
47 static const char * const builtin_remote_prune_usage[] = {
48         "git remote prune [<options>] <name>",
49         NULL
50 };
51
52 static const char * const builtin_remote_update_usage[] = {
53         "git remote update [<options>] [<group> | <remote>]...",
54         NULL
55 };
56
57 #define GET_REF_STATES (1<<0)
58 #define GET_HEAD_NAMES (1<<1)
59 #define GET_PUSH_REF_STATES (1<<2)
60
61 static int verbose;
62
63 static int show_all(void);
64 static int prune_remote(const char *remote, int dry_run);
65
66 static inline int postfixcmp(const char *string, const char *postfix)
67 {
68         int len1 = strlen(string), len2 = strlen(postfix);
69         if (len1 < len2)
70                 return 1;
71         return strcmp(string + len1 - len2, postfix);
72 }
73
74 static int opt_parse_track(const struct option *opt, const char *arg, int not)
75 {
76         struct string_list *list = opt->value;
77         if (not)
78                 string_list_clear(list, 0);
79         else
80                 string_list_append(arg, list);
81         return 0;
82 }
83
84 static int fetch_remote(const char *name)
85 {
86         const char *argv[] = { "fetch", name, NULL, NULL };
87         if (verbose) {
88                 argv[1] = "-v";
89                 argv[2] = name;
90         }
91         printf("Updating %s\n", name);
92         if (run_command_v_opt(argv, RUN_GIT_CMD))
93                 return error("Could not fetch %s", name);
94         return 0;
95 }
96
97 static int add(int argc, const char **argv)
98 {
99         int fetch = 0, mirror = 0;
100         struct string_list track = { NULL, 0, 0 };
101         const char *master = NULL;
102         struct remote *remote;
103         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
104         const char *name, *url;
105         int i;
106
107         struct option options[] = {
108                 OPT_BOOLEAN('f', "fetch", &fetch, "fetch the remote branches"),
109                 OPT_CALLBACK('t', "track", &track, "branch",
110                         "branch(es) to track", opt_parse_track),
111                 OPT_STRING('m', "master", &master, "branch", "master branch"),
112                 OPT_BOOLEAN(0, "mirror", &mirror, "no separate remotes"),
113                 OPT_END()
114         };
115
116         argc = parse_options(argc, argv, NULL, options, builtin_remote_add_usage,
117                              0);
118
119         if (argc < 2)
120                 usage_with_options(builtin_remote_add_usage, options);
121
122         name = argv[0];
123         url = argv[1];
124
125         remote = remote_get(name);
126         if (remote && (remote->url_nr > 1 || strcmp(name, remote->url[0]) ||
127                         remote->fetch_refspec_nr))
128                 die("remote %s already exists.", name);
129
130         strbuf_addf(&buf2, "refs/heads/test:refs/remotes/%s/test", name);
131         if (!valid_fetch_refspec(buf2.buf))
132                 die("'%s' is not a valid remote name", name);
133
134         strbuf_addf(&buf, "remote.%s.url", name);
135         if (git_config_set(buf.buf, url))
136                 return 1;
137
138         strbuf_reset(&buf);
139         strbuf_addf(&buf, "remote.%s.fetch", name);
140
141         if (track.nr == 0)
142                 string_list_append("*", &track);
143         for (i = 0; i < track.nr; i++) {
144                 struct string_list_item *item = track.items + i;
145
146                 strbuf_reset(&buf2);
147                 strbuf_addch(&buf2, '+');
148                 if (mirror)
149                         strbuf_addf(&buf2, "refs/%s:refs/%s",
150                                         item->string, item->string);
151                 else
152                         strbuf_addf(&buf2, "refs/heads/%s:refs/remotes/%s/%s",
153                                         item->string, name, item->string);
154                 if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
155                         return 1;
156         }
157
158         if (mirror) {
159                 strbuf_reset(&buf);
160                 strbuf_addf(&buf, "remote.%s.mirror", name);
161                 if (git_config_set(buf.buf, "true"))
162                         return 1;
163         }
164
165         if (fetch && fetch_remote(name))
166                 return 1;
167
168         if (master) {
169                 strbuf_reset(&buf);
170                 strbuf_addf(&buf, "refs/remotes/%s/HEAD", name);
171
172                 strbuf_reset(&buf2);
173                 strbuf_addf(&buf2, "refs/remotes/%s/%s", name, master);
174
175                 if (create_symref(buf.buf, buf2.buf, "remote add"))
176                         return error("Could not setup master '%s'", master);
177         }
178
179         strbuf_release(&buf);
180         strbuf_release(&buf2);
181         string_list_clear(&track, 0);
182
183         return 0;
184 }
185
186 struct branch_info {
187         char *remote_name;
188         struct string_list merge;
189         int rebase;
190 };
191
192 static struct string_list branch_list;
193
194 static const char *abbrev_ref(const char *name, const char *prefix)
195 {
196         const char *abbrev = skip_prefix(name, prefix);
197         if (abbrev)
198                 return abbrev;
199         return name;
200 }
201 #define abbrev_branch(name) abbrev_ref((name), "refs/heads/")
202
203 static int config_read_branches(const char *key, const char *value, void *cb)
204 {
205         if (!prefixcmp(key, "branch.")) {
206                 const char *orig_key = key;
207                 char *name;
208                 struct string_list_item *item;
209                 struct branch_info *info;
210                 enum { REMOTE, MERGE, REBASE } type;
211
212                 key += 7;
213                 if (!postfixcmp(key, ".remote")) {
214                         name = xstrndup(key, strlen(key) - 7);
215                         type = REMOTE;
216                 } else if (!postfixcmp(key, ".merge")) {
217                         name = xstrndup(key, strlen(key) - 6);
218                         type = MERGE;
219                 } else if (!postfixcmp(key, ".rebase")) {
220                         name = xstrndup(key, strlen(key) - 7);
221                         type = REBASE;
222                 } else
223                         return 0;
224
225                 item = string_list_insert(name, &branch_list);
226
227                 if (!item->util)
228                         item->util = xcalloc(sizeof(struct branch_info), 1);
229                 info = item->util;
230                 if (type == REMOTE) {
231                         if (info->remote_name)
232                                 warning("more than one %s", orig_key);
233                         info->remote_name = xstrdup(value);
234                 } else if (type == MERGE) {
235                         char *space = strchr(value, ' ');
236                         value = abbrev_branch(value);
237                         while (space) {
238                                 char *merge;
239                                 merge = xstrndup(value, space - value);
240                                 string_list_append(merge, &info->merge);
241                                 value = abbrev_branch(space + 1);
242                                 space = strchr(value, ' ');
243                         }
244                         string_list_append(xstrdup(value), &info->merge);
245                 } else
246                         info->rebase = git_config_bool(orig_key, value);
247         }
248         return 0;
249 }
250
251 static void read_branches(void)
252 {
253         if (branch_list.nr)
254                 return;
255         git_config(config_read_branches, NULL);
256 }
257
258 struct ref_states {
259         struct remote *remote;
260         struct string_list new, stale, tracked, heads, push;
261         int queried;
262 };
263
264 static int handle_one_branch(const char *refname,
265         const unsigned char *sha1, int flags, void *cb_data)
266 {
267         struct ref_states *states = cb_data;
268         struct refspec refspec;
269
270         memset(&refspec, 0, sizeof(refspec));
271         refspec.dst = (char *)refname;
272         if (!remote_find_tracking(states->remote, &refspec)) {
273                 struct string_list_item *item;
274                 const char *name = abbrev_branch(refspec.src);
275                 /* symbolic refs pointing nowhere were handled already */
276                 if ((flags & REF_ISSYMREF) ||
277                     string_list_has_string(&states->tracked, name) ||
278                     string_list_has_string(&states->new, name))
279                         return 0;
280                 item = string_list_append(name, &states->stale);
281                 item->util = xstrdup(refname);
282         }
283         return 0;
284 }
285
286 static int get_ref_states(const struct ref *remote_refs, struct ref_states *states)
287 {
288         struct ref *fetch_map = NULL, **tail = &fetch_map;
289         struct ref *ref;
290         int i;
291
292         for (i = 0; i < states->remote->fetch_refspec_nr; i++)
293                 if (get_fetch_map(remote_refs, states->remote->fetch + i, &tail, 1))
294                         die("Could not get fetch map for refspec %s",
295                                 states->remote->fetch_refspec[i]);
296
297         states->new.strdup_strings = states->tracked.strdup_strings = 1;
298         for (ref = fetch_map; ref; ref = ref->next) {
299                 unsigned char sha1[20];
300                 if (!ref->peer_ref || read_ref(ref->peer_ref->name, sha1))
301                         string_list_append(abbrev_branch(ref->name), &states->new);
302                 else
303                         string_list_append(abbrev_branch(ref->name), &states->tracked);
304         }
305         free_refs(fetch_map);
306
307         sort_string_list(&states->new);
308         sort_string_list(&states->tracked);
309         for_each_ref(handle_one_branch, states);
310         sort_string_list(&states->stale);
311
312         return 0;
313 }
314
315 struct push_info {
316         char *dest;
317         int forced;
318         enum {
319                 PUSH_STATUS_CREATE = 0,
320                 PUSH_STATUS_DELETE,
321                 PUSH_STATUS_UPTODATE,
322                 PUSH_STATUS_FASTFORWARD,
323                 PUSH_STATUS_OUTOFDATE,
324                 PUSH_STATUS_NOTQUERIED,
325         } status;
326 };
327
328 static int get_push_ref_states(const struct ref *remote_refs,
329         struct ref_states *states)
330 {
331         struct remote *remote = states->remote;
332         struct ref *ref, *local_refs, *push_map;
333         if (remote->mirror)
334                 return 0;
335
336         local_refs = get_local_heads();
337         push_map = copy_ref_list(remote_refs);
338
339         match_refs(local_refs, &push_map, remote->push_refspec_nr,
340                    remote->push_refspec, MATCH_REFS_NONE);
341
342         states->push.strdup_strings = 1;
343         for (ref = push_map; ref; ref = ref->next) {
344                 struct string_list_item *item;
345                 struct push_info *info;
346
347                 if (!ref->peer_ref)
348                         continue;
349                 hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
350
351                 item = string_list_append(abbrev_branch(ref->peer_ref->name),
352                                           &states->push);
353                 item->util = xcalloc(sizeof(struct push_info), 1);
354                 info = item->util;
355                 info->forced = ref->force;
356                 info->dest = xstrdup(abbrev_branch(ref->name));
357
358                 if (is_null_sha1(ref->new_sha1)) {
359                         info->status = PUSH_STATUS_DELETE;
360                 } else if (!hashcmp(ref->old_sha1, ref->new_sha1))
361                         info->status = PUSH_STATUS_UPTODATE;
362                 else if (is_null_sha1(ref->old_sha1))
363                         info->status = PUSH_STATUS_CREATE;
364                 else if (has_sha1_file(ref->old_sha1) &&
365                          ref_newer(ref->new_sha1, ref->old_sha1))
366                         info->status = PUSH_STATUS_FASTFORWARD;
367                 else
368                         info->status = PUSH_STATUS_OUTOFDATE;
369         }
370         free_refs(local_refs);
371         free_refs(push_map);
372         return 0;
373 }
374
375 static int get_push_ref_states_noquery(struct ref_states *states)
376 {
377         int i;
378         struct remote *remote = states->remote;
379         struct string_list_item *item;
380         struct push_info *info;
381
382         if (remote->mirror)
383                 return 0;
384
385         states->push.strdup_strings = 1;
386         if (!remote->push_refspec_nr) {
387                 item = string_list_append("(matching)", &states->push);
388                 info = item->util = xcalloc(sizeof(struct push_info), 1);
389                 info->status = PUSH_STATUS_NOTQUERIED;
390                 info->dest = xstrdup(item->string);
391         }
392         for (i = 0; i < remote->push_refspec_nr; i++) {
393                 struct refspec *spec = remote->push + i;
394                 if (spec->matching)
395                         item = string_list_append("(matching)", &states->push);
396                 else if (strlen(spec->src))
397                         item = string_list_append(spec->src, &states->push);
398                 else
399                         item = string_list_append("(delete)", &states->push);
400
401                 info = item->util = xcalloc(sizeof(struct push_info), 1);
402                 info->forced = spec->force;
403                 info->status = PUSH_STATUS_NOTQUERIED;
404                 info->dest = xstrdup(spec->dst ? spec->dst : item->string);
405         }
406         return 0;
407 }
408
409 static int get_head_names(const struct ref *remote_refs, struct ref_states *states)
410 {
411         struct ref *ref, *matches;
412         struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
413         struct refspec refspec;
414
415         refspec.force = 0;
416         refspec.pattern = 1;
417         refspec.src = refspec.dst = "refs/heads/*";
418         states->heads.strdup_strings = 1;
419         get_fetch_map(remote_refs, &refspec, &fetch_map_tail, 0);
420         matches = guess_remote_head(find_ref_by_name(remote_refs, "HEAD"),
421                                     fetch_map, 1);
422         for (ref = matches; ref; ref = ref->next)
423                 string_list_append(abbrev_branch(ref->name), &states->heads);
424
425         free_refs(fetch_map);
426         free_refs(matches);
427
428         return 0;
429 }
430
431 struct known_remote {
432         struct known_remote *next;
433         struct remote *remote;
434 };
435
436 struct known_remotes {
437         struct remote *to_delete;
438         struct known_remote *list;
439 };
440
441 static int add_known_remote(struct remote *remote, void *cb_data)
442 {
443         struct known_remotes *all = cb_data;
444         struct known_remote *r;
445
446         if (!strcmp(all->to_delete->name, remote->name))
447                 return 0;
448
449         r = xmalloc(sizeof(*r));
450         r->remote = remote;
451         r->next = all->list;
452         all->list = r;
453         return 0;
454 }
455
456 struct branches_for_remote {
457         struct remote *remote;
458         struct string_list *branches, *skipped;
459         struct known_remotes *keep;
460 };
461
462 static int add_branch_for_removal(const char *refname,
463         const unsigned char *sha1, int flags, void *cb_data)
464 {
465         struct branches_for_remote *branches = cb_data;
466         struct refspec refspec;
467         struct string_list_item *item;
468         struct known_remote *kr;
469
470         memset(&refspec, 0, sizeof(refspec));
471         refspec.dst = (char *)refname;
472         if (remote_find_tracking(branches->remote, &refspec))
473                 return 0;
474
475         /* don't delete a branch if another remote also uses it */
476         for (kr = branches->keep->list; kr; kr = kr->next) {
477                 memset(&refspec, 0, sizeof(refspec));
478                 refspec.dst = (char *)refname;
479                 if (!remote_find_tracking(kr->remote, &refspec))
480                         return 0;
481         }
482
483         /* don't delete non-remote refs */
484         if (prefixcmp(refname, "refs/remotes")) {
485                 /* advise user how to delete local branches */
486                 if (!prefixcmp(refname, "refs/heads/"))
487                         string_list_append(abbrev_branch(refname),
488                                            branches->skipped);
489                 /* silently skip over other non-remote refs */
490                 return 0;
491         }
492
493         /* make sure that symrefs are deleted */
494         if (flags & REF_ISSYMREF)
495                 return unlink(git_path("%s", refname));
496
497         item = string_list_append(refname, branches->branches);
498         item->util = xmalloc(20);
499         hashcpy(item->util, sha1);
500
501         return 0;
502 }
503
504 struct rename_info {
505         const char *old;
506         const char *new;
507         struct string_list *remote_branches;
508 };
509
510 static int read_remote_branches(const char *refname,
511         const unsigned char *sha1, int flags, void *cb_data)
512 {
513         struct rename_info *rename = cb_data;
514         struct strbuf buf = STRBUF_INIT;
515         struct string_list_item *item;
516         int flag;
517         unsigned char orig_sha1[20];
518         const char *symref;
519
520         strbuf_addf(&buf, "refs/remotes/%s", rename->old);
521         if (!prefixcmp(refname, buf.buf)) {
522                 item = string_list_append(xstrdup(refname), rename->remote_branches);
523                 symref = resolve_ref(refname, orig_sha1, 1, &flag);
524                 if (flag & REF_ISSYMREF)
525                         item->util = xstrdup(symref);
526                 else
527                         item->util = NULL;
528         }
529
530         return 0;
531 }
532
533 static int migrate_file(struct remote *remote)
534 {
535         struct strbuf buf = STRBUF_INIT;
536         int i;
537         char *path = NULL;
538
539         strbuf_addf(&buf, "remote.%s.url", remote->name);
540         for (i = 0; i < remote->url_nr; i++)
541                 if (git_config_set_multivar(buf.buf, remote->url[i], "^$", 0))
542                         return error("Could not append '%s' to '%s'",
543                                         remote->url[i], buf.buf);
544         strbuf_reset(&buf);
545         strbuf_addf(&buf, "remote.%s.push", remote->name);
546         for (i = 0; i < remote->push_refspec_nr; i++)
547                 if (git_config_set_multivar(buf.buf, remote->push_refspec[i], "^$", 0))
548                         return error("Could not append '%s' to '%s'",
549                                         remote->push_refspec[i], buf.buf);
550         strbuf_reset(&buf);
551         strbuf_addf(&buf, "remote.%s.fetch", remote->name);
552         for (i = 0; i < remote->fetch_refspec_nr; i++)
553                 if (git_config_set_multivar(buf.buf, remote->fetch_refspec[i], "^$", 0))
554                         return error("Could not append '%s' to '%s'",
555                                         remote->fetch_refspec[i], buf.buf);
556         if (remote->origin == REMOTE_REMOTES)
557                 path = git_path("remotes/%s", remote->name);
558         else if (remote->origin == REMOTE_BRANCHES)
559                 path = git_path("branches/%s", remote->name);
560         if (path)
561                 unlink_or_warn(path);
562         return 0;
563 }
564
565 static int mv(int argc, const char **argv)
566 {
567         struct option options[] = {
568                 OPT_END()
569         };
570         struct remote *oldremote, *newremote;
571         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT, buf3 = STRBUF_INIT;
572         struct string_list remote_branches = { NULL, 0, 0, 0 };
573         struct rename_info rename;
574         int i;
575
576         if (argc != 3)
577                 usage_with_options(builtin_remote_rename_usage, options);
578
579         rename.old = argv[1];
580         rename.new = argv[2];
581         rename.remote_branches = &remote_branches;
582
583         oldremote = remote_get(rename.old);
584         if (!oldremote)
585                 die("No such remote: %s", rename.old);
586
587         if (!strcmp(rename.old, rename.new) && oldremote->origin != REMOTE_CONFIG)
588                 return migrate_file(oldremote);
589
590         newremote = remote_get(rename.new);
591         if (newremote && (newremote->url_nr > 1 || newremote->fetch_refspec_nr))
592                 die("remote %s already exists.", rename.new);
593
594         strbuf_addf(&buf, "refs/heads/test:refs/remotes/%s/test", rename.new);
595         if (!valid_fetch_refspec(buf.buf))
596                 die("'%s' is not a valid remote name", rename.new);
597
598         strbuf_reset(&buf);
599         strbuf_addf(&buf, "remote.%s", rename.old);
600         strbuf_addf(&buf2, "remote.%s", rename.new);
601         if (git_config_rename_section(buf.buf, buf2.buf) < 1)
602                 return error("Could not rename config section '%s' to '%s'",
603                                 buf.buf, buf2.buf);
604
605         strbuf_reset(&buf);
606         strbuf_addf(&buf, "remote.%s.fetch", rename.new);
607         if (git_config_set_multivar(buf.buf, NULL, NULL, 1))
608                 return error("Could not remove config section '%s'", buf.buf);
609         for (i = 0; i < oldremote->fetch_refspec_nr; i++) {
610                 char *ptr;
611
612                 strbuf_reset(&buf2);
613                 strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
614                 ptr = strstr(buf2.buf, rename.old);
615                 if (ptr)
616                         strbuf_splice(&buf2, ptr-buf2.buf, strlen(rename.old),
617                                         rename.new, strlen(rename.new));
618                 if (git_config_set_multivar(buf.buf, buf2.buf, "^$", 0))
619                         return error("Could not append '%s'", buf.buf);
620         }
621
622         read_branches();
623         for (i = 0; i < branch_list.nr; i++) {
624                 struct string_list_item *item = branch_list.items + i;
625                 struct branch_info *info = item->util;
626                 if (info->remote_name && !strcmp(info->remote_name, rename.old)) {
627                         strbuf_reset(&buf);
628                         strbuf_addf(&buf, "branch.%s.remote", item->string);
629                         if (git_config_set(buf.buf, rename.new)) {
630                                 return error("Could not set '%s'", buf.buf);
631                         }
632                 }
633         }
634
635         /*
636          * First remove symrefs, then rename the rest, finally create
637          * the new symrefs.
638          */
639         for_each_ref(read_remote_branches, &rename);
640         for (i = 0; i < remote_branches.nr; i++) {
641                 struct string_list_item *item = remote_branches.items + i;
642                 int flag = 0;
643                 unsigned char sha1[20];
644
645                 resolve_ref(item->string, sha1, 1, &flag);
646                 if (!(flag & REF_ISSYMREF))
647                         continue;
648                 if (delete_ref(item->string, NULL, REF_NODEREF))
649                         die("deleting '%s' failed", item->string);
650         }
651         for (i = 0; i < remote_branches.nr; i++) {
652                 struct string_list_item *item = remote_branches.items + i;
653
654                 if (item->util)
655                         continue;
656                 strbuf_reset(&buf);
657                 strbuf_addstr(&buf, item->string);
658                 strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
659                                 rename.new, strlen(rename.new));
660                 strbuf_reset(&buf2);
661                 strbuf_addf(&buf2, "remote: renamed %s to %s",
662                                 item->string, buf.buf);
663                 if (rename_ref(item->string, buf.buf, buf2.buf))
664                         die("renaming '%s' failed", item->string);
665         }
666         for (i = 0; i < remote_branches.nr; i++) {
667                 struct string_list_item *item = remote_branches.items + i;
668
669                 if (!item->util)
670                         continue;
671                 strbuf_reset(&buf);
672                 strbuf_addstr(&buf, item->string);
673                 strbuf_splice(&buf, strlen("refs/remotes/"), strlen(rename.old),
674                                 rename.new, strlen(rename.new));
675                 strbuf_reset(&buf2);
676                 strbuf_addstr(&buf2, item->util);
677                 strbuf_splice(&buf2, strlen("refs/remotes/"), strlen(rename.old),
678                                 rename.new, strlen(rename.new));
679                 strbuf_reset(&buf3);
680                 strbuf_addf(&buf3, "remote: renamed %s to %s",
681                                 item->string, buf.buf);
682                 if (create_symref(buf.buf, buf2.buf, buf3.buf))
683                         die("creating '%s' failed", buf.buf);
684         }
685         return 0;
686 }
687
688 static int remove_branches(struct string_list *branches)
689 {
690         int i, result = 0;
691         for (i = 0; i < branches->nr; i++) {
692                 struct string_list_item *item = branches->items + i;
693                 const char *refname = item->string;
694                 unsigned char *sha1 = item->util;
695
696                 if (delete_ref(refname, sha1, 0))
697                         result |= error("Could not remove branch %s", refname);
698         }
699         return result;
700 }
701
702 static int rm(int argc, const char **argv)
703 {
704         struct option options[] = {
705                 OPT_END()
706         };
707         struct remote *remote;
708         struct strbuf buf = STRBUF_INIT;
709         struct known_remotes known_remotes = { NULL, NULL };
710         struct string_list branches = { NULL, 0, 0, 1 };
711         struct string_list skipped = { NULL, 0, 0, 1 };
712         struct branches_for_remote cb_data = {
713                 NULL, &branches, &skipped, &known_remotes
714         };
715         int i, result;
716
717         if (argc != 2)
718                 usage_with_options(builtin_remote_rm_usage, options);
719
720         remote = remote_get(argv[1]);
721         if (!remote)
722                 die("No such remote: %s", argv[1]);
723
724         known_remotes.to_delete = remote;
725         for_each_remote(add_known_remote, &known_remotes);
726
727         strbuf_addf(&buf, "remote.%s", remote->name);
728         if (git_config_rename_section(buf.buf, NULL) < 1)
729                 return error("Could not remove config section '%s'", buf.buf);
730
731         read_branches();
732         for (i = 0; i < branch_list.nr; i++) {
733                 struct string_list_item *item = branch_list.items + i;
734                 struct branch_info *info = item->util;
735                 if (info->remote_name && !strcmp(info->remote_name, remote->name)) {
736                         const char *keys[] = { "remote", "merge", NULL }, **k;
737                         for (k = keys; *k; k++) {
738                                 strbuf_reset(&buf);
739                                 strbuf_addf(&buf, "branch.%s.%s",
740                                                 item->string, *k);
741                                 if (git_config_set(buf.buf, NULL)) {
742                                         strbuf_release(&buf);
743                                         return -1;
744                                 }
745                         }
746                 }
747         }
748
749         /*
750          * We cannot just pass a function to for_each_ref() which deletes
751          * the branches one by one, since for_each_ref() relies on cached
752          * refs, which are invalidated when deleting a branch.
753          */
754         cb_data.remote = remote;
755         result = for_each_ref(add_branch_for_removal, &cb_data);
756         strbuf_release(&buf);
757
758         if (!result)
759                 result = remove_branches(&branches);
760         string_list_clear(&branches, 1);
761
762         if (skipped.nr) {
763                 fprintf(stderr, skipped.nr == 1 ?
764                         "Note: A non-remote branch was not removed; "
765                         "to delete it, use:\n" :
766                         "Note: Non-remote branches were not removed; "
767                         "to delete them, use:\n");
768                 for (i = 0; i < skipped.nr; i++)
769                         fprintf(stderr, "  git branch -d %s\n",
770                                 skipped.items[i].string);
771         }
772         string_list_clear(&skipped, 0);
773
774         return result;
775 }
776
777 static void clear_push_info(void *util, const char *string)
778 {
779         struct push_info *info = util;
780         free(info->dest);
781         free(info);
782 }
783
784 static void free_remote_ref_states(struct ref_states *states)
785 {
786         string_list_clear(&states->new, 0);
787         string_list_clear(&states->stale, 0);
788         string_list_clear(&states->tracked, 0);
789         string_list_clear(&states->heads, 0);
790         string_list_clear_func(&states->push, clear_push_info);
791 }
792
793 static int append_ref_to_tracked_list(const char *refname,
794         const unsigned char *sha1, int flags, void *cb_data)
795 {
796         struct ref_states *states = cb_data;
797         struct refspec refspec;
798
799         if (flags & REF_ISSYMREF)
800                 return 0;
801
802         memset(&refspec, 0, sizeof(refspec));
803         refspec.dst = (char *)refname;
804         if (!remote_find_tracking(states->remote, &refspec))
805                 string_list_append(abbrev_branch(refspec.src), &states->tracked);
806
807         return 0;
808 }
809
810 static int get_remote_ref_states(const char *name,
811                                  struct ref_states *states,
812                                  int query)
813 {
814         struct transport *transport;
815         const struct ref *remote_refs;
816
817         states->remote = remote_get(name);
818         if (!states->remote)
819                 return error("No such remote: %s", name);
820
821         read_branches();
822
823         if (query) {
824                 transport = transport_get(states->remote, states->remote->url_nr > 0 ?
825                         states->remote->url[0] : NULL);
826                 remote_refs = transport_get_remote_refs(transport);
827                 transport_disconnect(transport);
828
829                 states->queried = 1;
830                 if (query & GET_REF_STATES)
831                         get_ref_states(remote_refs, states);
832                 if (query & GET_HEAD_NAMES)
833                         get_head_names(remote_refs, states);
834                 if (query & GET_PUSH_REF_STATES)
835                         get_push_ref_states(remote_refs, states);
836         } else {
837                 for_each_ref(append_ref_to_tracked_list, states);
838                 sort_string_list(&states->tracked);
839                 get_push_ref_states_noquery(states);
840         }
841
842         return 0;
843 }
844
845 struct show_info {
846         struct string_list *list;
847         struct ref_states *states;
848         int width, width2;
849         int any_rebase;
850 };
851
852 static int add_remote_to_show_info(struct string_list_item *item, void *cb_data)
853 {
854         struct show_info *info = cb_data;
855         int n = strlen(item->string);
856         if (n > info->width)
857                 info->width = n;
858         string_list_insert(item->string, info->list);
859         return 0;
860 }
861
862 static int show_remote_info_item(struct string_list_item *item, void *cb_data)
863 {
864         struct show_info *info = cb_data;
865         struct ref_states *states = info->states;
866         const char *name = item->string;
867
868         if (states->queried) {
869                 const char *fmt = "%s";
870                 const char *arg = "";
871                 if (string_list_has_string(&states->new, name)) {
872                         fmt = " new (next fetch will store in remotes/%s)";
873                         arg = states->remote->name;
874                 } else if (string_list_has_string(&states->tracked, name))
875                         arg = " tracked";
876                 else if (string_list_has_string(&states->stale, name))
877                         arg = " stale (use 'git remote prune' to remove)";
878                 else
879                         arg = " ???";
880                 printf("    %-*s", info->width, name);
881                 printf(fmt, arg);
882                 printf("\n");
883         } else
884                 printf("    %s\n", name);
885
886         return 0;
887 }
888
889 static int add_local_to_show_info(struct string_list_item *branch_item, void *cb_data)
890 {
891         struct show_info *show_info = cb_data;
892         struct ref_states *states = show_info->states;
893         struct branch_info *branch_info = branch_item->util;
894         struct string_list_item *item;
895         int n;
896
897         if (!branch_info->merge.nr || !branch_info->remote_name ||
898             strcmp(states->remote->name, branch_info->remote_name))
899                 return 0;
900         if ((n = strlen(branch_item->string)) > show_info->width)
901                 show_info->width = n;
902         if (branch_info->rebase)
903                 show_info->any_rebase = 1;
904
905         item = string_list_insert(branch_item->string, show_info->list);
906         item->util = branch_info;
907
908         return 0;
909 }
910
911 static int show_local_info_item(struct string_list_item *item, void *cb_data)
912 {
913         struct show_info *show_info = cb_data;
914         struct branch_info *branch_info = item->util;
915         struct string_list *merge = &branch_info->merge;
916         const char *also;
917         int i;
918
919         if (branch_info->rebase && branch_info->merge.nr > 1) {
920                 error("invalid branch.%s.merge; cannot rebase onto > 1 branch",
921                         item->string);
922                 return 0;
923         }
924
925         printf("    %-*s ", show_info->width, item->string);
926         if (branch_info->rebase) {
927                 printf("rebases onto remote %s\n", merge->items[0].string);
928                 return 0;
929         } else if (show_info->any_rebase) {
930                 printf(" merges with remote %s\n", merge->items[0].string);
931                 also = "    and with remote";
932         } else {
933                 printf("merges with remote %s\n", merge->items[0].string);
934                 also = "   and with remote";
935         }
936         for (i = 1; i < merge->nr; i++)
937                 printf("    %-*s %s %s\n", show_info->width, "", also,
938                        merge->items[i].string);
939
940         return 0;
941 }
942
943 static int add_push_to_show_info(struct string_list_item *push_item, void *cb_data)
944 {
945         struct show_info *show_info = cb_data;
946         struct push_info *push_info = push_item->util;
947         struct string_list_item *item;
948         int n;
949         if ((n = strlen(push_item->string)) > show_info->width)
950                 show_info->width = n;
951         if ((n = strlen(push_info->dest)) > show_info->width2)
952                 show_info->width2 = n;
953         item = string_list_append(push_item->string, show_info->list);
954         item->util = push_item->util;
955         return 0;
956 }
957
958 /*
959  * Sorting comparison for a string list that has push_info
960  * structs in its util field
961  */
962 static int cmp_string_with_push(const void *va, const void *vb)
963 {
964         const struct string_list_item *a = va;
965         const struct string_list_item *b = vb;
966         const struct push_info *a_push = a->util;
967         const struct push_info *b_push = b->util;
968         int cmp = strcmp(a->string, b->string);
969         return cmp ? cmp : strcmp(a_push->dest, b_push->dest);
970 }
971
972 static int show_push_info_item(struct string_list_item *item, void *cb_data)
973 {
974         struct show_info *show_info = cb_data;
975         struct push_info *push_info = item->util;
976         char *src = item->string, *status = NULL;
977
978         switch (push_info->status) {
979         case PUSH_STATUS_CREATE:
980                 status = "create";
981                 break;
982         case PUSH_STATUS_DELETE:
983                 status = "delete";
984                 src = "(none)";
985                 break;
986         case PUSH_STATUS_UPTODATE:
987                 status = "up to date";
988                 break;
989         case PUSH_STATUS_FASTFORWARD:
990                 status = "fast-forwardable";
991                 break;
992         case PUSH_STATUS_OUTOFDATE:
993                 status = "local out of date";
994                 break;
995         case PUSH_STATUS_NOTQUERIED:
996                 break;
997         }
998         if (status)
999                 printf("    %-*s %s to %-*s (%s)\n", show_info->width, src,
1000                         push_info->forced ? "forces" : "pushes",
1001                         show_info->width2, push_info->dest, status);
1002         else
1003                 printf("    %-*s %s to %s\n", show_info->width, src,
1004                         push_info->forced ? "forces" : "pushes",
1005                         push_info->dest);
1006         return 0;
1007 }
1008
1009 static int show(int argc, const char **argv)
1010 {
1011         int no_query = 0, result = 0, query_flag = 0;
1012         struct option options[] = {
1013                 OPT_BOOLEAN('n', NULL, &no_query, "do not query remotes"),
1014                 OPT_END()
1015         };
1016         struct ref_states states;
1017         struct string_list info_list = { NULL, 0, 0, 0 };
1018         struct show_info info;
1019
1020         argc = parse_options(argc, argv, NULL, options, builtin_remote_show_usage,
1021                              0);
1022
1023         if (argc < 1)
1024                 return show_all();
1025
1026         if (!no_query)
1027                 query_flag = (GET_REF_STATES | GET_HEAD_NAMES | GET_PUSH_REF_STATES);
1028
1029         memset(&states, 0, sizeof(states));
1030         memset(&info, 0, sizeof(info));
1031         info.states = &states;
1032         info.list = &info_list;
1033         for (; argc; argc--, argv++) {
1034                 int i;
1035                 const char **url;
1036                 int url_nr;
1037
1038                 get_remote_ref_states(*argv, &states, query_flag);
1039
1040                 printf("* remote %s\n", *argv);
1041                 printf("  Fetch URL: %s\n", states.remote->url_nr > 0 ?
1042                         states.remote->url[0] : "(no URL)");
1043                 if (states.remote->pushurl_nr) {
1044                         url = states.remote->pushurl;
1045                         url_nr = states.remote->pushurl_nr;
1046                 } else {
1047                         url = states.remote->url;
1048                         url_nr = states.remote->url_nr;
1049                 }
1050                 for (i=0; i < url_nr; i++)
1051                         printf("  Push  URL: %s\n", url[i]);
1052                 if (!i)
1053                         printf("  Push  URL: %s\n", "(no URL)");
1054                 if (no_query)
1055                         printf("  HEAD branch: (not queried)\n");
1056                 else if (!states.heads.nr)
1057                         printf("  HEAD branch: (unknown)\n");
1058                 else if (states.heads.nr == 1)
1059                         printf("  HEAD branch: %s\n", states.heads.items[0].string);
1060                 else {
1061                         printf("  HEAD branch (remote HEAD is ambiguous,"
1062                                " may be one of the following):\n");
1063                         for (i = 0; i < states.heads.nr; i++)
1064                                 printf("    %s\n", states.heads.items[i].string);
1065                 }
1066
1067                 /* remote branch info */
1068                 info.width = 0;
1069                 for_each_string_list(add_remote_to_show_info, &states.new, &info);
1070                 for_each_string_list(add_remote_to_show_info, &states.tracked, &info);
1071                 for_each_string_list(add_remote_to_show_info, &states.stale, &info);
1072                 if (info.list->nr)
1073                         printf("  Remote branch%s:%s\n",
1074                                info.list->nr > 1 ? "es" : "",
1075                                 no_query ? " (status not queried)" : "");
1076                 for_each_string_list(show_remote_info_item, info.list, &info);
1077                 string_list_clear(info.list, 0);
1078
1079                 /* git pull info */
1080                 info.width = 0;
1081                 info.any_rebase = 0;
1082                 for_each_string_list(add_local_to_show_info, &branch_list, &info);
1083                 if (info.list->nr)
1084                         printf("  Local branch%s configured for 'git pull':\n",
1085                                info.list->nr > 1 ? "es" : "");
1086                 for_each_string_list(show_local_info_item, info.list, &info);
1087                 string_list_clear(info.list, 0);
1088
1089                 /* git push info */
1090                 if (states.remote->mirror)
1091                         printf("  Local refs will be mirrored by 'git push'\n");
1092
1093                 info.width = info.width2 = 0;
1094                 for_each_string_list(add_push_to_show_info, &states.push, &info);
1095                 qsort(info.list->items, info.list->nr,
1096                         sizeof(*info.list->items), cmp_string_with_push);
1097                 if (info.list->nr)
1098                         printf("  Local ref%s configured for 'git push'%s:\n",
1099                                 info.list->nr > 1 ? "s" : "",
1100                                 no_query ? " (status not queried)" : "");
1101                 for_each_string_list(show_push_info_item, info.list, &info);
1102                 string_list_clear(info.list, 0);
1103
1104                 free_remote_ref_states(&states);
1105         }
1106
1107         return result;
1108 }
1109
1110 static int set_head(int argc, const char **argv)
1111 {
1112         int i, opt_a = 0, opt_d = 0, result = 0;
1113         struct strbuf buf = STRBUF_INIT, buf2 = STRBUF_INIT;
1114         char *head_name = NULL;
1115
1116         struct option options[] = {
1117                 OPT_BOOLEAN('a', "auto", &opt_a,
1118                             "set refs/remotes/<name>/HEAD according to remote"),
1119                 OPT_BOOLEAN('d', "delete", &opt_d,
1120                             "delete refs/remotes/<name>/HEAD"),
1121                 OPT_END()
1122         };
1123         argc = parse_options(argc, argv, NULL, options, builtin_remote_sethead_usage,
1124                              0);
1125         if (argc)
1126                 strbuf_addf(&buf, "refs/remotes/%s/HEAD", argv[0]);
1127
1128         if (!opt_a && !opt_d && argc == 2) {
1129                 head_name = xstrdup(argv[1]);
1130         } else if (opt_a && !opt_d && argc == 1) {
1131                 struct ref_states states;
1132                 memset(&states, 0, sizeof(states));
1133                 get_remote_ref_states(argv[0], &states, GET_HEAD_NAMES);
1134                 if (!states.heads.nr)
1135                         result |= error("Cannot determine remote HEAD");
1136                 else if (states.heads.nr > 1) {
1137                         result |= error("Multiple remote HEAD branches. "
1138                                         "Please choose one explicitly with:");
1139                         for (i = 0; i < states.heads.nr; i++)
1140                                 fprintf(stderr, "  git remote set-head %s %s\n",
1141                                         argv[0], states.heads.items[i].string);
1142                 } else
1143                         head_name = xstrdup(states.heads.items[0].string);
1144                 free_remote_ref_states(&states);
1145         } else if (opt_d && !opt_a && argc == 1) {
1146                 if (delete_ref(buf.buf, NULL, REF_NODEREF))
1147                         result |= error("Could not delete %s", buf.buf);
1148         } else
1149                 usage_with_options(builtin_remote_sethead_usage, options);
1150
1151         if (head_name) {
1152                 unsigned char sha1[20];
1153                 strbuf_addf(&buf2, "refs/remotes/%s/%s", argv[0], head_name);
1154                 /* make sure it's valid */
1155                 if (!resolve_ref(buf2.buf, sha1, 1, NULL))
1156                         result |= error("Not a valid ref: %s", buf2.buf);
1157                 else if (create_symref(buf.buf, buf2.buf, "remote set-head"))
1158                         result |= error("Could not setup %s", buf.buf);
1159                 if (opt_a)
1160                         printf("%s/HEAD set to %s\n", argv[0], head_name);
1161                 free(head_name);
1162         }
1163
1164         strbuf_release(&buf);
1165         strbuf_release(&buf2);
1166         return result;
1167 }
1168
1169 static int prune(int argc, const char **argv)
1170 {
1171         int dry_run = 0, result = 0;
1172         struct option options[] = {
1173                 OPT__DRY_RUN(&dry_run),
1174                 OPT_END()
1175         };
1176
1177         argc = parse_options(argc, argv, NULL, options, builtin_remote_prune_usage,
1178                              0);
1179
1180         if (argc < 1)
1181                 usage_with_options(builtin_remote_prune_usage, options);
1182
1183         for (; argc; argc--, argv++)
1184                 result |= prune_remote(*argv, dry_run);
1185
1186         return result;
1187 }
1188
1189 static int prune_remote(const char *remote, int dry_run)
1190 {
1191         int result = 0, i;
1192         struct ref_states states;
1193         const char *dangling_msg = dry_run
1194                 ? " %s will become dangling!\n"
1195                 : " %s has become dangling!\n";
1196
1197         memset(&states, 0, sizeof(states));
1198         get_remote_ref_states(remote, &states, GET_REF_STATES);
1199
1200         if (states.stale.nr) {
1201                 printf("Pruning %s\n", remote);
1202                 printf("URL: %s\n",
1203                        states.remote->url_nr
1204                        ? states.remote->url[0]
1205                        : "(no URL)");
1206         }
1207
1208         for (i = 0; i < states.stale.nr; i++) {
1209                 const char *refname = states.stale.items[i].util;
1210
1211                 if (!dry_run)
1212                         result |= delete_ref(refname, NULL, 0);
1213
1214                 printf(" * [%s] %s\n", dry_run ? "would prune" : "pruned",
1215                        abbrev_ref(refname, "refs/remotes/"));
1216                 warn_dangling_symref(dangling_msg, refname);
1217         }
1218
1219         free_remote_ref_states(&states);
1220         return result;
1221 }
1222
1223 static int get_one_remote_for_update(struct remote *remote, void *priv)
1224 {
1225         struct string_list *list = priv;
1226         if (!remote->skip_default_update)
1227                 string_list_append(remote->name, list);
1228         return 0;
1229 }
1230
1231 static struct remote_group {
1232         const char *name;
1233         struct string_list *list;
1234 } remote_group;
1235
1236 static int get_remote_group(const char *key, const char *value, void *num_hits)
1237 {
1238         if (!prefixcmp(key, "remotes.") &&
1239                         !strcmp(key + 8, remote_group.name)) {
1240                 /* split list by white space */
1241                 int space = strcspn(value, " \t\n");
1242                 while (*value) {
1243                         if (space > 1) {
1244                                 string_list_append(xstrndup(value, space),
1245                                                 remote_group.list);
1246                                 ++*((int *)num_hits);
1247                         }
1248                         value += space + (value[space] != '\0');
1249                         space = strcspn(value, " \t\n");
1250                 }
1251         }
1252
1253         return 0;
1254 }
1255
1256 static int update(int argc, const char **argv)
1257 {
1258         int i, result = 0, prune = 0;
1259         struct string_list list = { NULL, 0, 0, 0 };
1260         static const char *default_argv[] = { NULL, "default", NULL };
1261         struct option options[] = {
1262                 OPT_BOOLEAN('p', "prune", &prune,
1263                             "prune remotes after fetching"),
1264                 OPT_END()
1265         };
1266
1267         argc = parse_options(argc, argv, NULL, options, builtin_remote_update_usage,
1268                              PARSE_OPT_KEEP_ARGV0);
1269         if (argc < 2) {
1270                 argc = 2;
1271                 argv = default_argv;
1272         }
1273
1274         remote_group.list = &list;
1275         for (i = 1; i < argc; i++) {
1276                 int groups_found = 0;
1277                 remote_group.name = argv[i];
1278                 result = git_config(get_remote_group, &groups_found);
1279                 if (!groups_found && (i != 1 || strcmp(argv[1], "default"))) {
1280                         struct remote *remote;
1281                         if (!remote_is_configured(argv[i]))
1282                                 die("No such remote or remote group: %s",
1283                                     argv[i]);
1284                         remote = remote_get(argv[i]);
1285                         string_list_append(remote->name, remote_group.list);
1286                 }
1287         }
1288
1289         if (!result && !list.nr  && argc == 2 && !strcmp(argv[1], "default"))
1290                 result = for_each_remote(get_one_remote_for_update, &list);
1291
1292         for (i = 0; i < list.nr; i++) {
1293                 int err = fetch_remote(list.items[i].string);
1294                 result |= err;
1295                 if (!err && prune)
1296                         result |= prune_remote(list.items[i].string, 0);
1297         }
1298
1299         /* all names were strdup()ed or strndup()ed */
1300         list.strdup_strings = 1;
1301         string_list_clear(&list, 0);
1302
1303         return result;
1304 }
1305
1306 static int get_one_entry(struct remote *remote, void *priv)
1307 {
1308         struct string_list *list = priv;
1309         struct strbuf url_buf = STRBUF_INIT;
1310         const char **url;
1311         int i, url_nr;
1312
1313         if (remote->url_nr > 0) {
1314                 strbuf_addf(&url_buf, "%s (fetch)", remote->url[0]);
1315                 string_list_append(remote->name, list)->util =
1316                                 strbuf_detach(&url_buf, NULL);
1317         } else
1318                 string_list_append(remote->name, list)->util = NULL;
1319         if (remote->pushurl_nr) {
1320                 url = remote->pushurl;
1321                 url_nr = remote->pushurl_nr;
1322         } else {
1323                 url = remote->url;
1324                 url_nr = remote->url_nr;
1325         }
1326         for (i = 0; i < url_nr; i++)
1327         {
1328                 strbuf_addf(&url_buf, "%s (push)", url[i]);
1329                 string_list_append(remote->name, list)->util =
1330                                 strbuf_detach(&url_buf, NULL);
1331         }
1332
1333         return 0;
1334 }
1335
1336 static int show_all(void)
1337 {
1338         struct string_list list = { NULL, 0, 0 };
1339         int result;
1340
1341         list.strdup_strings = 1;
1342         result = for_each_remote(get_one_entry, &list);
1343
1344         if (!result) {
1345                 int i;
1346
1347                 sort_string_list(&list);
1348                 for (i = 0; i < list.nr; i++) {
1349                         struct string_list_item *item = list.items + i;
1350                         if (verbose)
1351                                 printf("%s\t%s\n", item->string,
1352                                         item->util ? (const char *)item->util : "");
1353                         else {
1354                                 if (i && !strcmp((item - 1)->string, item->string))
1355                                         continue;
1356                                 printf("%s\n", item->string);
1357                         }
1358                 }
1359         }
1360         string_list_clear(&list, 1);
1361         return result;
1362 }
1363
1364 int cmd_remote(int argc, const char **argv, const char *prefix)
1365 {
1366         struct option options[] = {
1367                 OPT_BOOLEAN('v', "verbose", &verbose, "be verbose; must be placed before a subcommand"),
1368                 OPT_END()
1369         };
1370         int result;
1371
1372         argc = parse_options(argc, argv, prefix, options, builtin_remote_usage,
1373                 PARSE_OPT_STOP_AT_NON_OPTION);
1374
1375         if (argc < 1)
1376                 result = show_all();
1377         else if (!strcmp(argv[0], "add"))
1378                 result = add(argc, argv);
1379         else if (!strcmp(argv[0], "rename"))
1380                 result = mv(argc, argv);
1381         else if (!strcmp(argv[0], "rm"))
1382                 result = rm(argc, argv);
1383         else if (!strcmp(argv[0], "set-head"))
1384                 result = set_head(argc, argv);
1385         else if (!strcmp(argv[0], "show"))
1386                 result = show(argc, argv);
1387         else if (!strcmp(argv[0], "prune"))
1388                 result = prune(argc, argv);
1389         else if (!strcmp(argv[0], "update"))
1390                 result = update(argc, argv);
1391         else {
1392                 error("Unknown subcommand: %s", argv[0]);
1393                 usage_with_options(builtin_remote_usage, options);
1394         }
1395
1396         return result ? 1 : 0;
1397 }