Code

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