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