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Commit | Line | Data |
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5751f490 | 1 | #include "cache.h" |
b2141fc1 | 2 | #include "config.h" |
5751f490 DB |
3 | #include "remote.h" |
4 | #include "refs.h" | |
ec0cb496 | 5 | #include "refspec.h" |
cbd53a21 | 6 | #include "object-store.h" |
6d21bf96 JH |
7 | #include "commit.h" |
8 | #include "diff.h" | |
9 | #include "revision.h" | |
8ca12c0d | 10 | #include "dir.h" |
ec8452d5 | 11 | #include "tag.h" |
73cf0822 | 12 | #include "string-list.h" |
ed81c76b | 13 | #include "mergesort.h" |
0b282cc4 | 14 | #include "argv-array.h" |
5751f490 | 15 | |
6ddba5e2 FC |
16 | enum map_direction { FROM_SRC, FROM_DST }; |
17 | ||
844112ca JH |
18 | struct counted_string { |
19 | size_t len; | |
20 | const char *s; | |
21 | }; | |
55029ae4 DB |
22 | struct rewrite { |
23 | const char *base; | |
844112ca JH |
24 | size_t baselen; |
25 | struct counted_string *instead_of; | |
55029ae4 DB |
26 | int instead_of_nr; |
27 | int instead_of_alloc; | |
28 | }; | |
d071d942 JT |
29 | struct rewrites { |
30 | struct rewrite **rewrite; | |
31 | int rewrite_alloc; | |
32 | int rewrite_nr; | |
33 | }; | |
55029ae4 | 34 | |
5751f490 | 35 | static struct remote **remotes; |
2d31347b DB |
36 | static int remotes_alloc; |
37 | static int remotes_nr; | |
d0da003d | 38 | static struct hashmap remotes_hash; |
5751f490 | 39 | |
cf818348 | 40 | static struct branch **branches; |
2d31347b DB |
41 | static int branches_alloc; |
42 | static int branches_nr; | |
cf818348 DB |
43 | |
44 | static struct branch *current_branch; | |
f24f715e | 45 | static const char *pushremote_name; |
cf818348 | 46 | |
d071d942 | 47 | static struct rewrites rewrites; |
1c2eafb8 | 48 | static struct rewrites rewrites_push; |
55029ae4 | 49 | |
0a4da29d DB |
50 | static int valid_remote(const struct remote *remote) |
51 | { | |
c578f51d | 52 | return (!!remote->url) || (!!remote->foreign_vcs); |
0a4da29d DB |
53 | } |
54 | ||
d071d942 | 55 | static const char *alias_url(const char *url, struct rewrites *r) |
55029ae4 DB |
56 | { |
57 | int i, j; | |
844112ca JH |
58 | struct counted_string *longest; |
59 | int longest_i; | |
60 | ||
61 | longest = NULL; | |
62 | longest_i = -1; | |
d071d942 JT |
63 | for (i = 0; i < r->rewrite_nr; i++) { |
64 | if (!r->rewrite[i]) | |
55029ae4 | 65 | continue; |
d071d942 | 66 | for (j = 0; j < r->rewrite[i]->instead_of_nr; j++) { |
59556548 | 67 | if (starts_with(url, r->rewrite[i]->instead_of[j].s) && |
844112ca | 68 | (!longest || |
d071d942 JT |
69 | longest->len < r->rewrite[i]->instead_of[j].len)) { |
70 | longest = &(r->rewrite[i]->instead_of[j]); | |
844112ca | 71 | longest_i = i; |
55029ae4 DB |
72 | } |
73 | } | |
74 | } | |
844112ca JH |
75 | if (!longest) |
76 | return url; | |
77 | ||
75faa45a | 78 | return xstrfmt("%s%s", r->rewrite[longest_i]->base, url + longest->len); |
55029ae4 DB |
79 | } |
80 | ||
28b91f8a | 81 | static void add_url(struct remote *remote, const char *url) |
5751f490 | 82 | { |
2d31347b DB |
83 | ALLOC_GROW(remote->url, remote->url_nr + 1, remote->url_alloc); |
84 | remote->url[remote->url_nr++] = url; | |
5751f490 DB |
85 | } |
86 | ||
20346234 MG |
87 | static void add_pushurl(struct remote *remote, const char *pushurl) |
88 | { | |
89 | ALLOC_GROW(remote->pushurl, remote->pushurl_nr + 1, remote->pushurl_alloc); | |
90 | remote->pushurl[remote->pushurl_nr++] = pushurl; | |
91 | } | |
92 | ||
1c2eafb8 JT |
93 | static void add_pushurl_alias(struct remote *remote, const char *url) |
94 | { | |
95 | const char *pushurl = alias_url(url, &rewrites_push); | |
96 | if (pushurl != url) | |
97 | add_pushurl(remote, pushurl); | |
98 | } | |
99 | ||
100 | static void add_url_alias(struct remote *remote, const char *url) | |
101 | { | |
102 | add_url(remote, alias_url(url, &rewrites)); | |
103 | add_pushurl_alias(remote, url); | |
104 | } | |
105 | ||
d0da003d PR |
106 | struct remotes_hash_key { |
107 | const char *str; | |
108 | int len; | |
109 | }; | |
110 | ||
7663cdc8 | 111 | static int remotes_hash_cmp(const void *unused_cmp_data, |
45dcb35f SB |
112 | const void *entry, |
113 | const void *entry_or_key, | |
114 | const void *keydata) | |
d0da003d | 115 | { |
45dcb35f SB |
116 | const struct remote *a = entry; |
117 | const struct remote *b = entry_or_key; | |
118 | const struct remotes_hash_key *key = keydata; | |
119 | ||
d0da003d PR |
120 | if (key) |
121 | return strncmp(a->name, key->str, key->len) || a->name[key->len]; | |
122 | else | |
123 | return strcmp(a->name, b->name); | |
124 | } | |
125 | ||
126 | static inline void init_remotes_hash(void) | |
127 | { | |
128 | if (!remotes_hash.cmpfn) | |
45dcb35f | 129 | hashmap_init(&remotes_hash, remotes_hash_cmp, NULL, 0); |
d0da003d PR |
130 | } |
131 | ||
5751f490 DB |
132 | static struct remote *make_remote(const char *name, int len) |
133 | { | |
d0da003d PR |
134 | struct remote *ret, *replaced; |
135 | struct remotes_hash_key lookup; | |
136 | struct hashmap_entry lookup_entry; | |
5751f490 | 137 | |
d0da003d PR |
138 | if (!len) |
139 | len = strlen(name); | |
140 | ||
141 | init_remotes_hash(); | |
142 | lookup.str = name; | |
143 | lookup.len = len; | |
144 | hashmap_entry_init(&lookup_entry, memhash(name, len)); | |
145 | ||
146 | if ((ret = hashmap_get(&remotes_hash, &lookup_entry, &lookup)) != NULL) | |
147 | return ret; | |
5751f490 | 148 | |
2d31347b | 149 | ret = xcalloc(1, sizeof(struct remote)); |
737c5a9c | 150 | ret->prune = -1; /* unspecified */ |
97716d21 | 151 | ret->prune_tags = -1; /* unspecified */ |
6bdb304b BW |
152 | ret->name = xstrndup(name, len); |
153 | refspec_init(&ret->push, REFSPEC_PUSH); | |
e5349abf | 154 | refspec_init(&ret->fetch, REFSPEC_FETCH); |
6bdb304b | 155 | |
2d31347b DB |
156 | ALLOC_GROW(remotes, remotes_nr + 1, remotes_alloc); |
157 | remotes[remotes_nr++] = ret; | |
d0da003d PR |
158 | |
159 | hashmap_entry_init(ret, lookup_entry.hash); | |
160 | replaced = hashmap_put(&remotes_hash, ret); | |
161 | assert(replaced == NULL); /* no previous entry overwritten */ | |
2d31347b | 162 | return ret; |
5751f490 DB |
163 | } |
164 | ||
cf818348 DB |
165 | static void add_merge(struct branch *branch, const char *name) |
166 | { | |
2d31347b DB |
167 | ALLOC_GROW(branch->merge_name, branch->merge_nr + 1, |
168 | branch->merge_alloc); | |
169 | branch->merge_name[branch->merge_nr++] = name; | |
cf818348 DB |
170 | } |
171 | ||
172 | static struct branch *make_branch(const char *name, int len) | |
173 | { | |
2d31347b DB |
174 | struct branch *ret; |
175 | int i; | |
cf818348 | 176 | |
2d31347b DB |
177 | for (i = 0; i < branches_nr; i++) { |
178 | if (len ? (!strncmp(name, branches[i]->name, len) && | |
179 | !branches[i]->name[len]) : | |
180 | !strcmp(name, branches[i]->name)) | |
181 | return branches[i]; | |
cf818348 DB |
182 | } |
183 | ||
2d31347b DB |
184 | ALLOC_GROW(branches, branches_nr + 1, branches_alloc); |
185 | ret = xcalloc(1, sizeof(struct branch)); | |
186 | branches[branches_nr++] = ret; | |
cf818348 | 187 | if (len) |
2d31347b | 188 | ret->name = xstrndup(name, len); |
cf818348 | 189 | else |
2d31347b | 190 | ret->name = xstrdup(name); |
fa3f60b7 | 191 | ret->refname = xstrfmt("refs/heads/%s", ret->name); |
cf818348 | 192 | |
2d31347b | 193 | return ret; |
cf818348 DB |
194 | } |
195 | ||
d071d942 | 196 | static struct rewrite *make_rewrite(struct rewrites *r, const char *base, int len) |
55029ae4 DB |
197 | { |
198 | struct rewrite *ret; | |
199 | int i; | |
200 | ||
d071d942 | 201 | for (i = 0; i < r->rewrite_nr; i++) { |
844112ca | 202 | if (len |
d071d942 JT |
203 | ? (len == r->rewrite[i]->baselen && |
204 | !strncmp(base, r->rewrite[i]->base, len)) | |
205 | : !strcmp(base, r->rewrite[i]->base)) | |
206 | return r->rewrite[i]; | |
55029ae4 DB |
207 | } |
208 | ||
d071d942 | 209 | ALLOC_GROW(r->rewrite, r->rewrite_nr + 1, r->rewrite_alloc); |
55029ae4 | 210 | ret = xcalloc(1, sizeof(struct rewrite)); |
d071d942 | 211 | r->rewrite[r->rewrite_nr++] = ret; |
844112ca | 212 | if (len) { |
55029ae4 | 213 | ret->base = xstrndup(base, len); |
844112ca JH |
214 | ret->baselen = len; |
215 | } | |
216 | else { | |
55029ae4 | 217 | ret->base = xstrdup(base); |
844112ca JH |
218 | ret->baselen = strlen(base); |
219 | } | |
55029ae4 DB |
220 | return ret; |
221 | } | |
222 | ||
223 | static void add_instead_of(struct rewrite *rewrite, const char *instead_of) | |
224 | { | |
225 | ALLOC_GROW(rewrite->instead_of, rewrite->instead_of_nr + 1, rewrite->instead_of_alloc); | |
844112ca JH |
226 | rewrite->instead_of[rewrite->instead_of_nr].s = instead_of; |
227 | rewrite->instead_of[rewrite->instead_of_nr].len = strlen(instead_of); | |
228 | rewrite->instead_of_nr++; | |
55029ae4 DB |
229 | } |
230 | ||
0e265a92 JK |
231 | static const char *skip_spaces(const char *s) |
232 | { | |
233 | while (isspace(*s)) | |
234 | s++; | |
235 | return s; | |
236 | } | |
237 | ||
5751f490 DB |
238 | static void read_remotes_file(struct remote *remote) |
239 | { | |
0e265a92 | 240 | struct strbuf buf = STRBUF_INIT; |
e9d983f1 | 241 | FILE *f = fopen_or_warn(git_path("remotes/%s", remote->name), "r"); |
5751f490 DB |
242 | |
243 | if (!f) | |
244 | return; | |
e459b073 | 245 | remote->configured_in_repo = 1; |
89cf4c70 | 246 | remote->origin = REMOTE_REMOTES; |
18814d0e | 247 | while (strbuf_getline(&buf, f) != EOF) { |
0e265a92 | 248 | const char *v; |
5751f490 | 249 | |
0e265a92 | 250 | strbuf_rtrim(&buf); |
5751f490 | 251 | |
0e265a92 JK |
252 | if (skip_prefix(buf.buf, "URL:", &v)) |
253 | add_url_alias(remote, xstrdup(skip_spaces(v))); | |
254 | else if (skip_prefix(buf.buf, "Push:", &v)) | |
6bdb304b | 255 | refspec_append(&remote->push, skip_spaces(v)); |
0e265a92 | 256 | else if (skip_prefix(buf.buf, "Pull:", &v)) |
e5349abf | 257 | refspec_append(&remote->fetch, skip_spaces(v)); |
5751f490 | 258 | } |
0e265a92 | 259 | strbuf_release(&buf); |
5751f490 DB |
260 | fclose(f); |
261 | } | |
262 | ||
263 | static void read_branches_file(struct remote *remote) | |
264 | { | |
cf818348 | 265 | char *frag; |
f28e3ab2 | 266 | struct strbuf buf = STRBUF_INIT; |
e9d983f1 | 267 | FILE *f = fopen_or_warn(git_path("branches/%s", remote->name), "r"); |
5751f490 DB |
268 | |
269 | if (!f) | |
270 | return; | |
f28e3ab2 | 271 | |
8f309aeb | 272 | strbuf_getline_lf(&buf, f); |
0fb19906 | 273 | fclose(f); |
f28e3ab2 JK |
274 | strbuf_trim(&buf); |
275 | if (!buf.len) { | |
276 | strbuf_release(&buf); | |
5751f490 | 277 | return; |
f28e3ab2 JK |
278 | } |
279 | ||
e459b073 | 280 | remote->configured_in_repo = 1; |
89cf4c70 | 281 | remote->origin = REMOTE_BRANCHES; |
472fa4cd DB |
282 | |
283 | /* | |
55cfde25 | 284 | * The branches file would have URL and optionally |
472fa4cd | 285 | * #branch specified. The "master" (or specified) branch is |
f28e3ab2 JK |
286 | * fetched and stored in the local branch matching the |
287 | * remote name. | |
472fa4cd | 288 | */ |
f28e3ab2 JK |
289 | frag = strchr(buf.buf, '#'); |
290 | if (frag) | |
cf818348 | 291 | *(frag++) = '\0'; |
f28e3ab2 JK |
292 | else |
293 | frag = "master"; | |
294 | ||
295 | add_url_alias(remote, strbuf_detach(&buf, NULL)); | |
e5349abf BW |
296 | strbuf_addf(&buf, "refs/heads/%s:refs/heads/%s", |
297 | frag, remote->name); | |
298 | refspec_append(&remote->fetch, buf.buf); | |
55cfde25 | 299 | |
18afe101 MK |
300 | /* |
301 | * Cogito compatible push: push current HEAD to remote #branch | |
302 | * (master if missing) | |
303 | */ | |
e5349abf | 304 | strbuf_reset(&buf); |
6bdb304b BW |
305 | strbuf_addf(&buf, "HEAD:refs/heads/%s", frag); |
306 | refspec_append(&remote->push, buf.buf); | |
d71ab174 | 307 | remote->fetch_tags = 1; /* always auto-follow */ |
6bdb304b | 308 | strbuf_release(&buf); |
5751f490 DB |
309 | } |
310 | ||
ef90d6d4 | 311 | static int handle_config(const char *key, const char *value, void *cb) |
5751f490 DB |
312 | { |
313 | const char *name; | |
bc60f8a7 | 314 | int namelen; |
5751f490 DB |
315 | const char *subkey; |
316 | struct remote *remote; | |
cf818348 | 317 | struct branch *branch; |
bc60f8a7 TG |
318 | if (parse_config_key(key, "branch", &name, &namelen, &subkey) >= 0) { |
319 | if (!name) | |
cf818348 | 320 | return 0; |
bc60f8a7 TG |
321 | branch = make_branch(name, namelen); |
322 | if (!strcmp(subkey, "remote")) { | |
e41bf352 | 323 | return git_config_string(&branch->remote_name, key, value); |
bc60f8a7 | 324 | } else if (!strcmp(subkey, "pushremote")) { |
da66b274 | 325 | return git_config_string(&branch->pushremote_name, key, value); |
bc60f8a7 | 326 | } else if (!strcmp(subkey, "merge")) { |
d2370cc2 JH |
327 | if (!value) |
328 | return config_error_nonbool(key); | |
cf818348 | 329 | add_merge(branch, xstrdup(value)); |
d2370cc2 | 330 | } |
cf818348 | 331 | return 0; |
5751f490 | 332 | } |
bc60f8a7 | 333 | if (parse_config_key(key, "url", &name, &namelen, &subkey) >= 0) { |
55029ae4 | 334 | struct rewrite *rewrite; |
bc60f8a7 | 335 | if (!name) |
55029ae4 | 336 | return 0; |
bc60f8a7 TG |
337 | if (!strcmp(subkey, "insteadof")) { |
338 | rewrite = make_rewrite(&rewrites, name, namelen); | |
1c2eafb8 JT |
339 | if (!value) |
340 | return config_error_nonbool(key); | |
341 | add_instead_of(rewrite, xstrdup(value)); | |
bc60f8a7 TG |
342 | } else if (!strcmp(subkey, "pushinsteadof")) { |
343 | rewrite = make_rewrite(&rewrites_push, name, namelen); | |
55029ae4 DB |
344 | if (!value) |
345 | return config_error_nonbool(key); | |
346 | add_instead_of(rewrite, xstrdup(value)); | |
347 | } | |
348 | } | |
224c2171 | 349 | |
bc60f8a7 | 350 | if (parse_config_key(key, "remote", &name, &namelen, &subkey) < 0) |
5751f490 | 351 | return 0; |
224c2171 RR |
352 | |
353 | /* Handle remote.* variables */ | |
bc60f8a7 | 354 | if (!name && !strcmp(subkey, "pushdefault")) |
224c2171 RR |
355 | return git_config_string(&pushremote_name, key, value); |
356 | ||
bc60f8a7 TG |
357 | if (!name) |
358 | return 0; | |
224c2171 | 359 | /* Handle remote.<name>.* variables */ |
c82efafc BC |
360 | if (*name == '/') { |
361 | warning("Config remote shorthand cannot begin with '/': %s", | |
362 | name); | |
363 | return 0; | |
364 | } | |
bc60f8a7 | 365 | remote = make_remote(name, namelen); |
89cf4c70 | 366 | remote->origin = REMOTE_CONFIG; |
e459b073 JS |
367 | if (current_config_scope() == CONFIG_SCOPE_REPO) |
368 | remote->configured_in_repo = 1; | |
bc60f8a7 | 369 | if (!strcmp(subkey, "mirror")) |
84bb2dfd | 370 | remote->mirror = git_config_bool(key, value); |
bc60f8a7 | 371 | else if (!strcmp(subkey, "skipdefaultupdate")) |
84bb2dfd | 372 | remote->skip_default_update = git_config_bool(key, value); |
bc60f8a7 | 373 | else if (!strcmp(subkey, "skipfetchall")) |
7cc91a2f | 374 | remote->skip_default_update = git_config_bool(key, value); |
bc60f8a7 | 375 | else if (!strcmp(subkey, "prune")) |
737c5a9c | 376 | remote->prune = git_config_bool(key, value); |
97716d21 ÆAB |
377 | else if (!strcmp(subkey, "prunetags")) |
378 | remote->prune_tags = git_config_bool(key, value); | |
bc60f8a7 | 379 | else if (!strcmp(subkey, "url")) { |
84bb2dfd PB |
380 | const char *v; |
381 | if (git_config_string(&v, key, value)) | |
382 | return -1; | |
383 | add_url(remote, v); | |
bc60f8a7 | 384 | } else if (!strcmp(subkey, "pushurl")) { |
20346234 MG |
385 | const char *v; |
386 | if (git_config_string(&v, key, value)) | |
387 | return -1; | |
388 | add_pushurl(remote, v); | |
bc60f8a7 | 389 | } else if (!strcmp(subkey, "push")) { |
84bb2dfd PB |
390 | const char *v; |
391 | if (git_config_string(&v, key, value)) | |
392 | return -1; | |
6bdb304b BW |
393 | refspec_append(&remote->push, v); |
394 | free((char *)v); | |
bc60f8a7 | 395 | } else if (!strcmp(subkey, "fetch")) { |
84bb2dfd PB |
396 | const char *v; |
397 | if (git_config_string(&v, key, value)) | |
398 | return -1; | |
e5349abf BW |
399 | refspec_append(&remote->fetch, v); |
400 | free((char *)v); | |
bc60f8a7 | 401 | } else if (!strcmp(subkey, "receivepack")) { |
84bb2dfd PB |
402 | const char *v; |
403 | if (git_config_string(&v, key, value)) | |
404 | return -1; | |
5751f490 | 405 | if (!remote->receivepack) |
84bb2dfd | 406 | remote->receivepack = v; |
5751f490 DB |
407 | else |
408 | error("more than one receivepack given, using the first"); | |
bc60f8a7 | 409 | } else if (!strcmp(subkey, "uploadpack")) { |
84bb2dfd PB |
410 | const char *v; |
411 | if (git_config_string(&v, key, value)) | |
412 | return -1; | |
0012ba21 | 413 | if (!remote->uploadpack) |
84bb2dfd | 414 | remote->uploadpack = v; |
0012ba21 DB |
415 | else |
416 | error("more than one uploadpack given, using the first"); | |
bc60f8a7 | 417 | } else if (!strcmp(subkey, "tagopt")) { |
d71ab174 DB |
418 | if (!strcmp(value, "--no-tags")) |
419 | remote->fetch_tags = -1; | |
944163a4 ST |
420 | else if (!strcmp(value, "--tags")) |
421 | remote->fetch_tags = 2; | |
bc60f8a7 | 422 | } else if (!strcmp(subkey, "proxy")) { |
84bb2dfd PB |
423 | return git_config_string((const char **)&remote->http_proxy, |
424 | key, value); | |
bc60f8a7 | 425 | } else if (!strcmp(subkey, "proxyauthmethod")) { |
ef976395 KF |
426 | return git_config_string((const char **)&remote->http_proxy_authmethod, |
427 | key, value); | |
bc60f8a7 | 428 | } else if (!strcmp(subkey, "vcs")) { |
c578f51d | 429 | return git_config_string(&remote->foreign_vcs, key, value); |
84bb2dfd | 430 | } |
5751f490 DB |
431 | return 0; |
432 | } | |
433 | ||
55029ae4 DB |
434 | static void alias_all_urls(void) |
435 | { | |
436 | int i, j; | |
437 | for (i = 0; i < remotes_nr; i++) { | |
1c2eafb8 | 438 | int add_pushurl_aliases; |
55029ae4 DB |
439 | if (!remotes[i]) |
440 | continue; | |
20346234 | 441 | for (j = 0; j < remotes[i]->pushurl_nr; j++) { |
d071d942 | 442 | remotes[i]->pushurl[j] = alias_url(remotes[i]->pushurl[j], &rewrites); |
20346234 | 443 | } |
1c2eafb8 JT |
444 | add_pushurl_aliases = remotes[i]->pushurl_nr == 0; |
445 | for (j = 0; j < remotes[i]->url_nr; j++) { | |
446 | if (add_pushurl_aliases) | |
447 | add_pushurl_alias(remotes[i], remotes[i]->url[j]); | |
448 | remotes[i]->url[j] = alias_url(remotes[i]->url[j], &rewrites); | |
449 | } | |
55029ae4 DB |
450 | } |
451 | } | |
452 | ||
5751f490 DB |
453 | static void read_config(void) |
454 | { | |
e41bf352 | 455 | static int loaded; |
5751f490 | 456 | int flag; |
e41bf352 JK |
457 | |
458 | if (loaded) | |
5751f490 | 459 | return; |
e41bf352 JK |
460 | loaded = 1; |
461 | ||
5751f490 | 462 | current_branch = NULL; |
f2f12d16 | 463 | if (startup_info->have_repository) { |
744c040b | 464 | const char *head_ref = resolve_ref_unsafe("HEAD", 0, NULL, &flag); |
f2f12d16 JK |
465 | if (head_ref && (flag & REF_ISSYMREF) && |
466 | skip_prefix(head_ref, "refs/heads/", &head_ref)) { | |
467 | current_branch = make_branch(head_ref, 0); | |
468 | } | |
5751f490 | 469 | } |
ef90d6d4 | 470 | git_config(handle_config, NULL); |
55029ae4 | 471 | alias_all_urls(); |
5751f490 DB |
472 | } |
473 | ||
df93e33c DB |
474 | static int valid_remote_nick(const char *name) |
475 | { | |
8ca12c0d | 476 | if (!name[0] || is_dot_or_dotdot(name)) |
df93e33c | 477 | return 0; |
d9244ecf JS |
478 | |
479 | /* remote nicknames cannot contain slashes */ | |
480 | while (*name) | |
481 | if (is_dir_sep(*name++)) | |
482 | return 0; | |
483 | return 1; | |
df93e33c DB |
484 | } |
485 | ||
f052154d JK |
486 | const char *remote_for_branch(struct branch *branch, int *explicit) |
487 | { | |
488 | if (branch && branch->remote_name) { | |
489 | if (explicit) | |
490 | *explicit = 1; | |
491 | return branch->remote_name; | |
492 | } | |
493 | if (explicit) | |
494 | *explicit = 0; | |
495 | return "origin"; | |
496 | } | |
497 | ||
da66b274 JK |
498 | const char *pushremote_for_branch(struct branch *branch, int *explicit) |
499 | { | |
500 | if (branch && branch->pushremote_name) { | |
501 | if (explicit) | |
502 | *explicit = 1; | |
503 | return branch->pushremote_name; | |
504 | } | |
505 | if (pushremote_name) { | |
506 | if (explicit) | |
507 | *explicit = 1; | |
508 | return pushremote_name; | |
509 | } | |
510 | return remote_for_branch(branch, explicit); | |
511 | } | |
512 | ||
9700fae5 W |
513 | const char *remote_ref_for_branch(struct branch *branch, int for_push, |
514 | int *explicit) | |
515 | { | |
516 | if (branch) { | |
517 | if (!for_push) { | |
518 | if (branch->merge_nr) { | |
519 | if (explicit) | |
520 | *explicit = 1; | |
521 | return branch->merge_name[0]; | |
522 | } | |
523 | } else { | |
524 | const char *dst, *remote_name = | |
525 | pushremote_for_branch(branch, NULL); | |
526 | struct remote *remote = remote_get(remote_name); | |
527 | ||
6bdb304b | 528 | if (remote && remote->push.nr && |
d000414e | 529 | (dst = apply_refspecs(&remote->push, |
9700fae5 W |
530 | branch->refname))) { |
531 | if (explicit) | |
532 | *explicit = 1; | |
533 | return dst; | |
534 | } | |
535 | } | |
536 | } | |
537 | if (explicit) | |
538 | *explicit = 0; | |
539 | return ""; | |
540 | } | |
541 | ||
da66b274 JK |
542 | static struct remote *remote_get_1(const char *name, |
543 | const char *(*get_default)(struct branch *, int *)) | |
5751f490 DB |
544 | { |
545 | struct remote *ret; | |
fa685bdf | 546 | int name_given = 0; |
5751f490 | 547 | |
8770e6fb JK |
548 | read_config(); |
549 | ||
fa685bdf DB |
550 | if (name) |
551 | name_given = 1; | |
da66b274 JK |
552 | else |
553 | name = get_default(current_branch, &name_given); | |
9326d494 | 554 | |
5751f490 | 555 | ret = make_remote(name, 0); |
4539c218 | 556 | if (valid_remote_nick(name) && have_git_dir()) { |
0a4da29d | 557 | if (!valid_remote(ret)) |
5751f490 | 558 | read_remotes_file(ret); |
0a4da29d | 559 | if (!valid_remote(ret)) |
5751f490 DB |
560 | read_branches_file(ret); |
561 | } | |
0a4da29d | 562 | if (name_given && !valid_remote(ret)) |
55029ae4 | 563 | add_url_alias(ret, name); |
0a4da29d | 564 | if (!valid_remote(ret)) |
5751f490 DB |
565 | return NULL; |
566 | return ret; | |
567 | } | |
6b62816c | 568 | |
f24f715e RR |
569 | struct remote *remote_get(const char *name) |
570 | { | |
da66b274 | 571 | return remote_get_1(name, remote_for_branch); |
f24f715e RR |
572 | } |
573 | ||
574 | struct remote *pushremote_get(const char *name) | |
575 | { | |
da66b274 | 576 | return remote_get_1(name, pushremote_for_branch); |
f24f715e RR |
577 | } |
578 | ||
e459b073 | 579 | int remote_is_configured(struct remote *remote, int in_repo) |
9a23ba33 | 580 | { |
e459b073 JS |
581 | if (!remote) |
582 | return 0; | |
583 | if (in_repo) | |
584 | return remote->configured_in_repo; | |
585 | return !!remote->origin; | |
9a23ba33 FAG |
586 | } |
587 | ||
b42f6927 JS |
588 | int for_each_remote(each_remote_fn fn, void *priv) |
589 | { | |
590 | int i, result = 0; | |
591 | read_config(); | |
2d31347b | 592 | for (i = 0; i < remotes_nr && !result; i++) { |
b42f6927 JS |
593 | struct remote *r = remotes[i]; |
594 | if (!r) | |
595 | continue; | |
b42f6927 JS |
596 | result = fn(r, priv); |
597 | } | |
598 | return result; | |
599 | } | |
600 | ||
df02ebda MH |
601 | static void handle_duplicate(struct ref *ref1, struct ref *ref2) |
602 | { | |
f096e6e8 MH |
603 | if (strcmp(ref1->name, ref2->name)) { |
604 | if (ref1->fetch_head_status != FETCH_HEAD_IGNORE && | |
605 | ref2->fetch_head_status != FETCH_HEAD_IGNORE) { | |
606 | die(_("Cannot fetch both %s and %s to %s"), | |
607 | ref1->name, ref2->name, ref2->peer_ref->name); | |
608 | } else if (ref1->fetch_head_status != FETCH_HEAD_IGNORE && | |
609 | ref2->fetch_head_status == FETCH_HEAD_IGNORE) { | |
610 | warning(_("%s usually tracks %s, not %s"), | |
611 | ref2->peer_ref->name, ref2->name, ref1->name); | |
612 | } else if (ref1->fetch_head_status == FETCH_HEAD_IGNORE && | |
613 | ref2->fetch_head_status == FETCH_HEAD_IGNORE) { | |
614 | die(_("%s tracks both %s and %s"), | |
615 | ref2->peer_ref->name, ref1->name, ref2->name); | |
616 | } else { | |
617 | /* | |
618 | * This last possibility doesn't occur because | |
619 | * FETCH_HEAD_IGNORE entries always appear at | |
620 | * the end of the list. | |
621 | */ | |
622 | die(_("Internal error")); | |
623 | } | |
624 | } | |
df02ebda MH |
625 | free(ref2->peer_ref); |
626 | free(ref2); | |
627 | } | |
628 | ||
b9afe665 | 629 | struct ref *ref_remove_duplicates(struct ref *ref_map) |
2467a4fa | 630 | { |
183113a5 | 631 | struct string_list refs = STRING_LIST_INIT_NODUP; |
b9afe665 MH |
632 | struct ref *retval = NULL; |
633 | struct ref **p = &retval; | |
73cf0822 | 634 | |
b9afe665 MH |
635 | while (ref_map) { |
636 | struct ref *ref = ref_map; | |
637 | ||
638 | ref_map = ref_map->next; | |
639 | ref->next = NULL; | |
73cf0822 | 640 | |
b9afe665 MH |
641 | if (!ref->peer_ref) { |
642 | *p = ref; | |
643 | p = &ref->next; | |
09ea1f8e | 644 | } else { |
b9afe665 MH |
645 | struct string_list_item *item = |
646 | string_list_insert(&refs, ref->peer_ref->name); | |
647 | ||
648 | if (item->util) { | |
649 | /* Entry already existed */ | |
df02ebda | 650 | handle_duplicate((struct ref *)item->util, ref); |
b9afe665 MH |
651 | } else { |
652 | *p = ref; | |
653 | p = &ref->next; | |
654 | item->util = ref; | |
655 | } | |
2467a4fa DB |
656 | } |
657 | } | |
b9afe665 | 658 | |
73cf0822 | 659 | string_list_clear(&refs, 0); |
b9afe665 | 660 | return retval; |
2467a4fa DB |
661 | } |
662 | ||
28b91f8a | 663 | int remote_has_url(struct remote *remote, const char *url) |
5d46c9d4 DB |
664 | { |
665 | int i; | |
28b91f8a SP |
666 | for (i = 0; i < remote->url_nr; i++) { |
667 | if (!strcmp(remote->url[i], url)) | |
5d46c9d4 DB |
668 | return 1; |
669 | } | |
670 | return 0; | |
671 | } | |
672 | ||
e928213f DB |
673 | static int match_name_with_pattern(const char *key, const char *name, |
674 | const char *value, char **result) | |
a3c84239 | 675 | { |
08fbdb30 DB |
676 | const char *kstar = strchr(key, '*'); |
677 | size_t klen; | |
abd2bde7 DB |
678 | size_t ksuffixlen; |
679 | size_t namelen; | |
08fbdb30 DB |
680 | int ret; |
681 | if (!kstar) | |
682 | die("Key '%s' of pattern had no '*'", key); | |
683 | klen = kstar - key; | |
abd2bde7 DB |
684 | ksuffixlen = strlen(kstar + 1); |
685 | namelen = strlen(name); | |
686 | ret = !strncmp(name, key, klen) && namelen >= klen + ksuffixlen && | |
687 | !memcmp(name + namelen - ksuffixlen, kstar + 1, ksuffixlen); | |
e928213f | 688 | if (ret && value) { |
07bfa575 | 689 | struct strbuf sb = STRBUF_INIT; |
08fbdb30 | 690 | const char *vstar = strchr(value, '*'); |
08fbdb30 DB |
691 | if (!vstar) |
692 | die("Value '%s' of pattern has no '*'", value); | |
07bfa575 RS |
693 | strbuf_add(&sb, value, vstar - value); |
694 | strbuf_add(&sb, name + klen, namelen - klen - ksuffixlen); | |
695 | strbuf_addstr(&sb, vstar + 1); | |
696 | *result = strbuf_detach(&sb, NULL); | |
e928213f | 697 | } |
a3c84239 DB |
698 | return ret; |
699 | } | |
700 | ||
a2ac50cb BW |
701 | static void query_refspecs_multiple(struct refspec *rs, |
702 | struct refspec_item *query, | |
703 | struct string_list *results) | |
e6f63712 CMN |
704 | { |
705 | int i; | |
706 | int find_src = !query->src; | |
707 | ||
708 | if (find_src && !query->dst) | |
709 | error("query_refspecs_multiple: need either src or dst"); | |
710 | ||
a2ac50cb BW |
711 | for (i = 0; i < rs->nr; i++) { |
712 | struct refspec_item *refspec = &rs->items[i]; | |
e6f63712 CMN |
713 | const char *key = find_src ? refspec->dst : refspec->src; |
714 | const char *value = find_src ? refspec->src : refspec->dst; | |
715 | const char *needle = find_src ? query->dst : query->src; | |
716 | char **result = find_src ? &query->src : &query->dst; | |
717 | ||
718 | if (!refspec->dst) | |
719 | continue; | |
720 | if (refspec->pattern) { | |
721 | if (match_name_with_pattern(key, needle, value, result)) | |
722 | string_list_append_nodup(results, *result); | |
723 | } else if (!strcmp(needle, key)) { | |
724 | string_list_append(results, value); | |
725 | } | |
726 | } | |
727 | } | |
728 | ||
86baf825 | 729 | int query_refspecs(struct refspec *rs, struct refspec_item *query) |
72ff8943 DB |
730 | { |
731 | int i; | |
c500352e | 732 | int find_src = !query->src; |
049bff8f MH |
733 | const char *needle = find_src ? query->dst : query->src; |
734 | char **result = find_src ? &query->src : &query->dst; | |
72ff8943 | 735 | |
c500352e CMN |
736 | if (find_src && !query->dst) |
737 | return error("query_refspecs: need either src or dst"); | |
b42f6927 | 738 | |
86baf825 BW |
739 | for (i = 0; i < rs->nr; i++) { |
740 | struct refspec_item *refspec = &rs->items[i]; | |
c500352e CMN |
741 | const char *key = find_src ? refspec->dst : refspec->src; |
742 | const char *value = find_src ? refspec->src : refspec->dst; | |
b42f6927 | 743 | |
c500352e | 744 | if (!refspec->dst) |
5d46c9d4 | 745 | continue; |
c500352e | 746 | if (refspec->pattern) { |
e928213f | 747 | if (match_name_with_pattern(key, needle, value, result)) { |
c500352e | 748 | query->force = refspec->force; |
5d46c9d4 DB |
749 | return 0; |
750 | } | |
b42f6927 JS |
751 | } else if (!strcmp(needle, key)) { |
752 | *result = xstrdup(value); | |
c500352e | 753 | query->force = refspec->force; |
b42f6927 | 754 | return 0; |
5d46c9d4 DB |
755 | } |
756 | } | |
5d46c9d4 DB |
757 | return -1; |
758 | } | |
759 | ||
d000414e | 760 | char *apply_refspecs(struct refspec *rs, const char *name) |
c500352e | 761 | { |
0ad4a5ff | 762 | struct refspec_item query; |
c500352e | 763 | |
0ad4a5ff | 764 | memset(&query, 0, sizeof(struct refspec_item)); |
c500352e CMN |
765 | query.src = (char *)name; |
766 | ||
86baf825 | 767 | if (query_refspecs(rs, &query)) |
c500352e CMN |
768 | return NULL; |
769 | ||
770 | return query.dst; | |
771 | } | |
772 | ||
0ad4a5ff | 773 | int remote_find_tracking(struct remote *remote, struct refspec_item *refspec) |
c500352e | 774 | { |
86baf825 | 775 | return query_refspecs(&remote->fetch, refspec); |
c500352e CMN |
776 | } |
777 | ||
8009768e RS |
778 | static struct ref *alloc_ref_with_prefix(const char *prefix, size_t prefixlen, |
779 | const char *name) | |
780 | { | |
781 | size_t len = strlen(name); | |
50a6c8ef | 782 | struct ref *ref = xcalloc(1, st_add4(sizeof(*ref), prefixlen, len, 1)); |
8009768e RS |
783 | memcpy(ref->name, prefix, prefixlen); |
784 | memcpy(ref->name + prefixlen, name, len); | |
785 | return ref; | |
786 | } | |
787 | ||
59c69c0c | 788 | struct ref *alloc_ref(const char *name) |
dfd255dd | 789 | { |
59c69c0c | 790 | return alloc_ref_with_prefix("", 0, name); |
737922aa KK |
791 | } |
792 | ||
59a57757 | 793 | struct ref *copy_ref(const struct ref *ref) |
d71ab174 | 794 | { |
7b3db095 JS |
795 | struct ref *cpy; |
796 | size_t len; | |
797 | if (!ref) | |
798 | return NULL; | |
50a6c8ef JK |
799 | len = st_add3(sizeof(struct ref), strlen(ref->name), 1); |
800 | cpy = xmalloc(len); | |
801 | memcpy(cpy, ref, len); | |
7b3db095 | 802 | cpy->next = NULL; |
8c53f071 JK |
803 | cpy->symref = xstrdup_or_null(ref->symref); |
804 | cpy->remote_status = xstrdup_or_null(ref->remote_status); | |
7b3db095 JS |
805 | cpy->peer_ref = copy_ref(ref->peer_ref); |
806 | return cpy; | |
d71ab174 DB |
807 | } |
808 | ||
4577370e DB |
809 | struct ref *copy_ref_list(const struct ref *ref) |
810 | { | |
811 | struct ref *ret = NULL; | |
812 | struct ref **tail = &ret; | |
813 | while (ref) { | |
814 | *tail = copy_ref(ref); | |
815 | ref = ref->next; | |
816 | tail = &((*tail)->next); | |
817 | } | |
818 | return ret; | |
819 | } | |
820 | ||
697d7f5d | 821 | static void free_ref(struct ref *ref) |
be885d96 DB |
822 | { |
823 | if (!ref) | |
824 | return; | |
7b3db095 | 825 | free_ref(ref->peer_ref); |
be885d96 DB |
826 | free(ref->remote_status); |
827 | free(ref->symref); | |
828 | free(ref); | |
829 | } | |
830 | ||
dfd255dd DB |
831 | void free_refs(struct ref *ref) |
832 | { | |
833 | struct ref *next; | |
834 | while (ref) { | |
835 | next = ref->next; | |
be885d96 | 836 | free_ref(ref); |
dfd255dd DB |
837 | ref = next; |
838 | } | |
839 | } | |
840 | ||
ed81c76b JK |
841 | int ref_compare_name(const void *va, const void *vb) |
842 | { | |
843 | const struct ref *a = va, *b = vb; | |
844 | return strcmp(a->name, b->name); | |
845 | } | |
846 | ||
847 | static void *ref_list_get_next(const void *a) | |
848 | { | |
849 | return ((const struct ref *)a)->next; | |
850 | } | |
851 | ||
852 | static void ref_list_set_next(void *a, void *next) | |
853 | { | |
854 | ((struct ref *)a)->next = next; | |
855 | } | |
856 | ||
857 | void sort_ref_list(struct ref **l, int (*cmp)(const void *, const void *)) | |
858 | { | |
859 | *l = llist_mergesort(*l, ref_list_get_next, ref_list_set_next, cmp); | |
860 | } | |
861 | ||
ca02465b JH |
862 | int count_refspec_match(const char *pattern, |
863 | struct ref *refs, | |
864 | struct ref **matched_ref) | |
6b62816c DB |
865 | { |
866 | int patlen = strlen(pattern); | |
867 | struct ref *matched_weak = NULL; | |
868 | struct ref *matched = NULL; | |
869 | int weak_match = 0; | |
870 | int match = 0; | |
871 | ||
872 | for (weak_match = match = 0; refs; refs = refs->next) { | |
873 | char *name = refs->name; | |
874 | int namelen = strlen(name); | |
6b62816c | 875 | |
54457fe5 | 876 | if (!refname_match(pattern, name)) |
6b62816c DB |
877 | continue; |
878 | ||
879 | /* A match is "weak" if it is with refs outside | |
880 | * heads or tags, and did not specify the pattern | |
881 | * in full (e.g. "refs/remotes/origin/master") or at | |
882 | * least from the toplevel (e.g. "remotes/origin/master"); | |
883 | * otherwise "git push $URL master" would result in | |
884 | * ambiguity between remotes/origin/master and heads/master | |
885 | * at the remote site. | |
886 | */ | |
887 | if (namelen != patlen && | |
888 | patlen != namelen - 5 && | |
59556548 CC |
889 | !starts_with(name, "refs/heads/") && |
890 | !starts_with(name, "refs/tags/")) { | |
6b62816c DB |
891 | /* We want to catch the case where only weak |
892 | * matches are found and there are multiple | |
893 | * matches, and where more than one strong | |
894 | * matches are found, as ambiguous. One | |
895 | * strong match with zero or more weak matches | |
896 | * are acceptable as a unique match. | |
897 | */ | |
898 | matched_weak = refs; | |
899 | weak_match++; | |
900 | } | |
901 | else { | |
902 | matched = refs; | |
903 | match++; | |
904 | } | |
905 | } | |
906 | if (!matched) { | |
471fd3fe JK |
907 | if (matched_ref) |
908 | *matched_ref = matched_weak; | |
6b62816c DB |
909 | return weak_match; |
910 | } | |
911 | else { | |
471fd3fe JK |
912 | if (matched_ref) |
913 | *matched_ref = matched; | |
6b62816c DB |
914 | return match; |
915 | } | |
916 | } | |
917 | ||
1d735267 | 918 | static void tail_link_ref(struct ref *ref, struct ref ***tail) |
6b62816c DB |
919 | { |
920 | **tail = ref; | |
1d735267 DB |
921 | while (ref->next) |
922 | ref = ref->next; | |
6b62816c | 923 | *tail = &ref->next; |
6b62816c DB |
924 | } |
925 | ||
67655246 FC |
926 | static struct ref *alloc_delete_ref(void) |
927 | { | |
928 | struct ref *ref = alloc_ref("(delete)"); | |
f4e54d02 | 929 | oidclr(&ref->new_oid); |
67655246 FC |
930 | return ref; |
931 | } | |
932 | ||
471fd3fe JK |
933 | static int try_explicit_object_name(const char *name, |
934 | struct ref **match) | |
6b62816c | 935 | { |
fcd30b13 | 936 | struct object_id oid; |
6b62816c | 937 | |
471fd3fe JK |
938 | if (!*name) { |
939 | if (match) | |
940 | *match = alloc_delete_ref(); | |
941 | return 0; | |
942 | } | |
943 | ||
e82caf38 | 944 | if (get_oid(name, &oid)) |
471fd3fe JK |
945 | return -1; |
946 | ||
947 | if (match) { | |
948 | *match = alloc_ref(name); | |
fcd30b13 | 949 | oidcpy(&(*match)->new_oid, &oid); |
471fd3fe JK |
950 | } |
951 | return 0; | |
6b62816c DB |
952 | } |
953 | ||
1d735267 | 954 | static struct ref *make_linked_ref(const char *name, struct ref ***tail) |
6b62816c | 955 | { |
59c69c0c | 956 | struct ref *ret = alloc_ref(name); |
1d735267 DB |
957 | tail_link_ref(ret, tail); |
958 | return ret; | |
163f0ee5 | 959 | } |
8558fd9e | 960 | |
f8aae120 JK |
961 | static char *guess_ref(const char *name, struct ref *peer) |
962 | { | |
963 | struct strbuf buf = STRBUF_INIT; | |
f8aae120 | 964 | |
7695d118 | 965 | const char *r = resolve_ref_unsafe(peer->name, RESOLVE_REF_READING, |
744c040b | 966 | NULL, NULL); |
f8aae120 JK |
967 | if (!r) |
968 | return NULL; | |
969 | ||
59556548 | 970 | if (starts_with(r, "refs/heads/")) |
f8aae120 | 971 | strbuf_addstr(&buf, "refs/heads/"); |
59556548 | 972 | else if (starts_with(r, "refs/tags/")) |
f8aae120 JK |
973 | strbuf_addstr(&buf, "refs/tags/"); |
974 | else | |
975 | return NULL; | |
976 | ||
977 | strbuf_addstr(&buf, name); | |
978 | return strbuf_detach(&buf, NULL); | |
979 | } | |
980 | ||
f7ade3d3 | 981 | static int match_explicit_lhs(struct ref *src, |
0ad4a5ff | 982 | struct refspec_item *rs, |
f7ade3d3 JK |
983 | struct ref **match, |
984 | int *allocated_match) | |
985 | { | |
986 | switch (count_refspec_match(rs->src, src, match)) { | |
987 | case 1: | |
471fd3fe JK |
988 | if (allocated_match) |
989 | *allocated_match = 0; | |
f7ade3d3 JK |
990 | return 0; |
991 | case 0: | |
992 | /* The source could be in the get_sha1() format | |
993 | * not a reference name. :refs/other is a | |
994 | * way to delete 'other' ref at the remote end. | |
995 | */ | |
471fd3fe | 996 | if (try_explicit_object_name(rs->src, match) < 0) |
f7ade3d3 | 997 | return error("src refspec %s does not match any.", rs->src); |
471fd3fe JK |
998 | if (allocated_match) |
999 | *allocated_match = 1; | |
f7ade3d3 JK |
1000 | return 0; |
1001 | default: | |
1002 | return error("src refspec %s matches more than one.", rs->src); | |
1003 | } | |
1004 | } | |
1005 | ||
54a8ad92 JH |
1006 | static int match_explicit(struct ref *src, struct ref *dst, |
1007 | struct ref ***dst_tail, | |
0ad4a5ff | 1008 | struct refspec_item *rs) |
6b62816c | 1009 | { |
54a8ad92 | 1010 | struct ref *matched_src, *matched_dst; |
f7ade3d3 | 1011 | int allocated_src; |
8558fd9e | 1012 | |
54a8ad92 | 1013 | const char *dst_value = rs->dst; |
f8aae120 | 1014 | char *dst_guess; |
6b62816c | 1015 | |
a83619d6 | 1016 | if (rs->pattern || rs->matching) |
9a7bbd1d | 1017 | return 0; |
8558fd9e | 1018 | |
54a8ad92 | 1019 | matched_src = matched_dst = NULL; |
f7ade3d3 JK |
1020 | if (match_explicit_lhs(src, rs, &matched_src, &allocated_src) < 0) |
1021 | return -1; | |
3c8b7df1 | 1022 | |
4491e62a | 1023 | if (!dst_value) { |
9f0ea7e8 DB |
1024 | int flag; |
1025 | ||
7695d118 RS |
1026 | dst_value = resolve_ref_unsafe(matched_src->name, |
1027 | RESOLVE_REF_READING, | |
744c040b | 1028 | NULL, &flag); |
9f0ea7e8 DB |
1029 | if (!dst_value || |
1030 | ((flag & REF_ISSYMREF) && | |
59556548 | 1031 | !starts_with(dst_value, "refs/heads/"))) |
9f0ea7e8 DB |
1032 | die("%s cannot be resolved to branch.", |
1033 | matched_src->name); | |
4491e62a | 1034 | } |
3c8b7df1 | 1035 | |
54a8ad92 JH |
1036 | switch (count_refspec_match(dst_value, dst, &matched_dst)) { |
1037 | case 1: | |
1038 | break; | |
1039 | case 0: | |
50e19a83 | 1040 | if (starts_with(dst_value, "refs/")) |
1d735267 | 1041 | matched_dst = make_linked_ref(dst_value, dst_tail); |
f4e54d02 | 1042 | else if (is_null_oid(&matched_src->new_oid)) |
5742c82b JK |
1043 | error("unable to delete '%s': remote ref does not exist", |
1044 | dst_value); | |
3dc7ea91 | 1045 | else if ((dst_guess = guess_ref(dst_value, matched_src))) { |
f8aae120 | 1046 | matched_dst = make_linked_ref(dst_guess, dst_tail); |
3dc7ea91 JS |
1047 | free(dst_guess); |
1048 | } else | |
f8aae120 JK |
1049 | error("unable to push to unqualified destination: %s\n" |
1050 | "The destination refspec neither matches an " | |
1051 | "existing ref on the remote nor\n" | |
1052 | "begins with refs/, and we are unable to " | |
1053 | "guess a prefix based on the source ref.", | |
1054 | dst_value); | |
54a8ad92 JH |
1055 | break; |
1056 | default: | |
3c8b7df1 | 1057 | matched_dst = NULL; |
54a8ad92 JH |
1058 | error("dst refspec %s matches more than one.", |
1059 | dst_value); | |
1060 | break; | |
1061 | } | |
9a7bbd1d JK |
1062 | if (!matched_dst) |
1063 | return -1; | |
1064 | if (matched_dst->peer_ref) | |
1065 | return error("dst ref %s receives from more than one src.", | |
54a8ad92 | 1066 | matched_dst->name); |
54a8ad92 | 1067 | else { |
f7ade3d3 JK |
1068 | matched_dst->peer_ref = allocated_src ? |
1069 | matched_src : | |
1070 | copy_ref(matched_src); | |
54a8ad92 | 1071 | matched_dst->force = rs->force; |
6b62816c | 1072 | } |
9a7bbd1d | 1073 | return 0; |
54a8ad92 JH |
1074 | } |
1075 | ||
1076 | static int match_explicit_refs(struct ref *src, struct ref *dst, | |
9fa2e5e8 | 1077 | struct ref ***dst_tail, struct refspec *rs) |
54a8ad92 JH |
1078 | { |
1079 | int i, errs; | |
9fa2e5e8 BW |
1080 | for (i = errs = 0; i < rs->nr; i++) |
1081 | errs += match_explicit(src, dst, dst_tail, &rs->items[i]); | |
9a7bbd1d | 1082 | return errs; |
6b62816c DB |
1083 | } |
1084 | ||
f3acb830 BW |
1085 | static char *get_ref_match(const struct refspec *rs, const struct ref *ref, |
1086 | int send_mirror, int direction, | |
1087 | const struct refspec_item **ret_pat) | |
8558fd9e | 1088 | { |
0ad4a5ff | 1089 | const struct refspec_item *pat; |
db70a04c | 1090 | char *name; |
8558fd9e | 1091 | int i; |
a83619d6 | 1092 | int matching_refs = -1; |
f3acb830 BW |
1093 | for (i = 0; i < rs->nr; i++) { |
1094 | const struct refspec_item *item = &rs->items[i]; | |
1095 | if (item->matching && | |
1096 | (matching_refs == -1 || item->force)) { | |
a83619d6 PB |
1097 | matching_refs = i; |
1098 | continue; | |
1099 | } | |
1100 | ||
f3acb830 BW |
1101 | if (item->pattern) { |
1102 | const char *dst_side = item->dst ? item->dst : item->src; | |
6ddba5e2 FC |
1103 | int match; |
1104 | if (direction == FROM_SRC) | |
f3acb830 | 1105 | match = match_name_with_pattern(item->src, ref->name, dst_side, &name); |
6ddba5e2 | 1106 | else |
f3acb830 | 1107 | match = match_name_with_pattern(dst_side, ref->name, item->src, &name); |
6ddba5e2 | 1108 | if (match) { |
db70a04c FC |
1109 | matching_refs = i; |
1110 | break; | |
1111 | } | |
1112 | } | |
8558fd9e | 1113 | } |
db70a04c | 1114 | if (matching_refs == -1) |
a83619d6 | 1115 | return NULL; |
db70a04c | 1116 | |
f3acb830 | 1117 | pat = &rs->items[matching_refs]; |
db70a04c FC |
1118 | if (pat->matching) { |
1119 | /* | |
1120 | * "matching refs"; traditionally we pushed everything | |
1121 | * including refs outside refs/heads/ hierarchy, but | |
1122 | * that does not make much sense these days. | |
1123 | */ | |
59556548 | 1124 | if (!send_mirror && !starts_with(ref->name, "refs/heads/")) |
db70a04c FC |
1125 | return NULL; |
1126 | name = xstrdup(ref->name); | |
1127 | } | |
1128 | if (ret_pat) | |
1129 | *ret_pat = pat; | |
1130 | return name; | |
8558fd9e DB |
1131 | } |
1132 | ||
6d2bf96e CB |
1133 | static struct ref **tail_ref(struct ref **head) |
1134 | { | |
1135 | struct ref **tail = head; | |
1136 | while (*tail) | |
1137 | tail = &((*tail)->next); | |
1138 | return tail; | |
1139 | } | |
1140 | ||
c2aba155 JH |
1141 | struct tips { |
1142 | struct commit **tip; | |
1143 | int nr, alloc; | |
1144 | }; | |
1145 | ||
fcd30b13 | 1146 | static void add_to_tips(struct tips *tips, const struct object_id *oid) |
c2aba155 JH |
1147 | { |
1148 | struct commit *commit; | |
1149 | ||
fcd30b13 | 1150 | if (is_null_oid(oid)) |
c2aba155 | 1151 | return; |
21e1ee8f | 1152 | commit = lookup_commit_reference_gently(the_repository, oid, 1); |
c2aba155 JH |
1153 | if (!commit || (commit->object.flags & TMP_MARK)) |
1154 | return; | |
1155 | commit->object.flags |= TMP_MARK; | |
1156 | ALLOC_GROW(tips->tip, tips->nr + 1, tips->alloc); | |
1157 | tips->tip[tips->nr++] = commit; | |
1158 | } | |
1159 | ||
1160 | static void add_missing_tags(struct ref *src, struct ref **dst, struct ref ***dst_tail) | |
1161 | { | |
1162 | struct string_list dst_tag = STRING_LIST_INIT_NODUP; | |
1163 | struct string_list src_tag = STRING_LIST_INIT_NODUP; | |
1164 | struct string_list_item *item; | |
1165 | struct ref *ref; | |
1166 | struct tips sent_tips; | |
1167 | ||
1168 | /* | |
1169 | * Collect everything we know they would have at the end of | |
1170 | * this push, and collect all tags they have. | |
1171 | */ | |
1172 | memset(&sent_tips, 0, sizeof(sent_tips)); | |
1173 | for (ref = *dst; ref; ref = ref->next) { | |
1174 | if (ref->peer_ref && | |
f4e54d02 | 1175 | !is_null_oid(&ref->peer_ref->new_oid)) |
fcd30b13 | 1176 | add_to_tips(&sent_tips, &ref->peer_ref->new_oid); |
c2aba155 | 1177 | else |
fcd30b13 | 1178 | add_to_tips(&sent_tips, &ref->old_oid); |
59556548 | 1179 | if (starts_with(ref->name, "refs/tags/")) |
c2aba155 JH |
1180 | string_list_append(&dst_tag, ref->name); |
1181 | } | |
1182 | clear_commit_marks_many(sent_tips.nr, sent_tips.tip, TMP_MARK); | |
1183 | ||
3383e199 | 1184 | string_list_sort(&dst_tag); |
c2aba155 JH |
1185 | |
1186 | /* Collect tags they do not have. */ | |
1187 | for (ref = src; ref; ref = ref->next) { | |
59556548 | 1188 | if (!starts_with(ref->name, "refs/tags/")) |
c2aba155 JH |
1189 | continue; /* not a tag */ |
1190 | if (string_list_has_string(&dst_tag, ref->name)) | |
1191 | continue; /* they already have it */ | |
0df8e965 | 1192 | if (oid_object_info(the_repository, &ref->new_oid, NULL) != OBJ_TAG) |
c2aba155 JH |
1193 | continue; /* be conservative */ |
1194 | item = string_list_append(&src_tag, ref->name); | |
1195 | item->util = ref; | |
1196 | } | |
1197 | string_list_clear(&dst_tag, 0); | |
1198 | ||
1199 | /* | |
1200 | * At this point, src_tag lists tags that are missing from | |
1201 | * dst, and sent_tips lists the tips we are pushing or those | |
1202 | * that we know they already have. An element in the src_tag | |
1203 | * that is an ancestor of any of the sent_tips needs to be | |
1204 | * sent to the other side. | |
1205 | */ | |
1206 | if (sent_tips.nr) { | |
1207 | for_each_string_list_item(item, &src_tag) { | |
1208 | struct ref *ref = item->util; | |
1209 | struct ref *dst_ref; | |
1210 | struct commit *commit; | |
1211 | ||
f4e54d02 | 1212 | if (is_null_oid(&ref->new_oid)) |
c2aba155 | 1213 | continue; |
21e1ee8f SB |
1214 | commit = lookup_commit_reference_gently(the_repository, |
1215 | &ref->new_oid, | |
bc83266a | 1216 | 1); |
c2aba155 JH |
1217 | if (!commit) |
1218 | /* not pushing a commit, which is not an error */ | |
1219 | continue; | |
1220 | ||
1221 | /* | |
1222 | * Is this tag, which they do not have, reachable from | |
1223 | * any of the commits we are sending? | |
1224 | */ | |
1225 | if (!in_merge_bases_many(commit, sent_tips.nr, sent_tips.tip)) | |
1226 | continue; | |
1227 | ||
1228 | /* Add it in */ | |
1229 | dst_ref = make_linked_ref(ref->name, dst_tail); | |
f4e54d02 | 1230 | oidcpy(&dst_ref->new_oid, &ref->new_oid); |
c2aba155 JH |
1231 | dst_ref->peer_ref = copy_ref(ref); |
1232 | } | |
1233 | } | |
1234 | string_list_clear(&src_tag, 0); | |
1235 | free(sent_tips.tip); | |
1236 | } | |
1237 | ||
47a59185 JH |
1238 | struct ref *find_ref_by_name(const struct ref *list, const char *name) |
1239 | { | |
1240 | for ( ; list; list = list->next) | |
1241 | if (!strcmp(list->name, name)) | |
1242 | return (struct ref *)list; | |
1243 | return NULL; | |
1244 | } | |
1245 | ||
f1bd15ab BC |
1246 | static void prepare_ref_index(struct string_list *ref_index, struct ref *ref) |
1247 | { | |
1248 | for ( ; ref; ref = ref->next) | |
1249 | string_list_append_nodup(ref_index, ref->name)->util = ref; | |
1250 | ||
3383e199 | 1251 | string_list_sort(ref_index); |
f1bd15ab BC |
1252 | } |
1253 | ||
ba928c13 JK |
1254 | /* |
1255 | * Given only the set of local refs, sanity-check the set of push | |
1256 | * refspecs. We can't catch all errors that match_push_refs would, | |
1257 | * but we can catch some errors early before even talking to the | |
1258 | * remote side. | |
1259 | */ | |
afb1aed4 | 1260 | int check_push_refs(struct ref *src, struct refspec *rs) |
ba928c13 | 1261 | { |
ba928c13 JK |
1262 | int ret = 0; |
1263 | int i; | |
1264 | ||
afb1aed4 BW |
1265 | for (i = 0; i < rs->nr; i++) { |
1266 | struct refspec_item *item = &rs->items[i]; | |
ba928c13 | 1267 | |
afb1aed4 | 1268 | if (item->pattern || item->matching) |
ba928c13 JK |
1269 | continue; |
1270 | ||
afb1aed4 | 1271 | ret |= match_explicit_lhs(src, item, NULL, NULL); |
ba928c13 JK |
1272 | } |
1273 | ||
ba928c13 JK |
1274 | return ret; |
1275 | } | |
1276 | ||
54a8ad92 | 1277 | /* |
29753cdd JH |
1278 | * Given the set of refs the local repository has, the set of refs the |
1279 | * remote repository has, and the refspec used for push, determine | |
1280 | * what remote refs we will update and with what value by setting | |
1281 | * peer_ref (which object is being pushed) and force (if the push is | |
1282 | * forced) in elements of "dst". The function may add new elements to | |
1283 | * dst (e.g. pushing to a new branch, done in match_explicit_refs). | |
54a8ad92 | 1284 | */ |
29753cdd | 1285 | int match_push_refs(struct ref *src, struct ref **dst, |
5c7ec846 | 1286 | struct refspec *rs, int flags) |
6b62816c | 1287 | { |
28b9d6e5 AW |
1288 | int send_all = flags & MATCH_REFS_ALL; |
1289 | int send_mirror = flags & MATCH_REFS_MIRROR; | |
6ddba5e2 | 1290 | int send_prune = flags & MATCH_REFS_PRUNE; |
5f48cb95 | 1291 | int errs; |
b1d8b1f3 | 1292 | struct ref *ref, **dst_tail = tail_ref(dst); |
f1bd15ab | 1293 | struct string_list dst_ref_index = STRING_LIST_INIT_NODUP; |
6b62816c | 1294 | |
5c7ec846 BW |
1295 | /* If no refspec is provided, use the default ":" */ |
1296 | if (!rs->nr) | |
1297 | refspec_append(rs, ":"); | |
1298 | ||
1299 | errs = match_explicit_refs(src, *dst, &dst_tail, rs); | |
6b62816c DB |
1300 | |
1301 | /* pick the remainder */ | |
b1d8b1f3 | 1302 | for (ref = src; ref; ref = ref->next) { |
f1bd15ab | 1303 | struct string_list_item *dst_item; |
6b62816c | 1304 | struct ref *dst_peer; |
0ad4a5ff | 1305 | const struct refspec_item *pat = NULL; |
6e66bf3c | 1306 | char *dst_name; |
db70a04c | 1307 | |
5c7ec846 | 1308 | dst_name = get_ref_match(rs, ref, send_mirror, FROM_SRC, &pat); |
db70a04c | 1309 | if (!dst_name) |
a83619d6 PB |
1310 | continue; |
1311 | ||
f1bd15ab BC |
1312 | if (!dst_ref_index.nr) |
1313 | prepare_ref_index(&dst_ref_index, *dst); | |
1314 | ||
1315 | dst_item = string_list_lookup(&dst_ref_index, dst_name); | |
1316 | dst_peer = dst_item ? dst_item->util : NULL; | |
a83619d6 PB |
1317 | if (dst_peer) { |
1318 | if (dst_peer->peer_ref) | |
1319 | /* We're already sending something to this ref. */ | |
1320 | goto free_name; | |
a83619d6 PB |
1321 | } else { |
1322 | if (pat->matching && !(send_all || send_mirror)) | |
1323 | /* | |
1324 | * Remote doesn't have it, and we have no | |
1325 | * explicit pattern, and we don't have | |
01689909 | 1326 | * --all or --mirror. |
a83619d6 PB |
1327 | */ |
1328 | goto free_name; | |
28b9d6e5 | 1329 | |
6b62816c | 1330 | /* Create a new one and link it */ |
6d2bf96e | 1331 | dst_peer = make_linked_ref(dst_name, &dst_tail); |
f4e54d02 | 1332 | oidcpy(&dst_peer->new_oid, &ref->new_oid); |
f1bd15ab BC |
1333 | string_list_insert(&dst_ref_index, |
1334 | dst_peer->name)->util = dst_peer; | |
6b62816c | 1335 | } |
b1d8b1f3 | 1336 | dst_peer->peer_ref = copy_ref(ref); |
a83619d6 | 1337 | dst_peer->force = pat->force; |
6e66bf3c AR |
1338 | free_name: |
1339 | free(dst_name); | |
6b62816c | 1340 | } |
c2aba155 | 1341 | |
f1bd15ab BC |
1342 | string_list_clear(&dst_ref_index, 0); |
1343 | ||
c2aba155 JH |
1344 | if (flags & MATCH_REFS_FOLLOW_TAGS) |
1345 | add_missing_tags(src, dst, &dst_tail); | |
1346 | ||
6ddba5e2 | 1347 | if (send_prune) { |
f1bd15ab | 1348 | struct string_list src_ref_index = STRING_LIST_INIT_NODUP; |
6ddba5e2 FC |
1349 | /* check for missing refs on the remote */ |
1350 | for (ref = *dst; ref; ref = ref->next) { | |
1351 | char *src_name; | |
1352 | ||
1353 | if (ref->peer_ref) | |
1354 | /* We're already sending something to this ref. */ | |
1355 | continue; | |
1356 | ||
5c7ec846 | 1357 | src_name = get_ref_match(rs, ref, send_mirror, FROM_DST, NULL); |
6ddba5e2 | 1358 | if (src_name) { |
f1bd15ab BC |
1359 | if (!src_ref_index.nr) |
1360 | prepare_ref_index(&src_ref_index, src); | |
1361 | if (!string_list_has_string(&src_ref_index, | |
1362 | src_name)) | |
6ddba5e2 FC |
1363 | ref->peer_ref = alloc_delete_ref(); |
1364 | free(src_name); | |
1365 | } | |
1366 | } | |
f1bd15ab | 1367 | string_list_clear(&src_ref_index, 0); |
6ddba5e2 | 1368 | } |
8ca69370 | 1369 | |
5f48cb95 JS |
1370 | if (errs) |
1371 | return -1; | |
6b62816c DB |
1372 | return 0; |
1373 | } | |
cf818348 | 1374 | |
20e8b465 | 1375 | void set_ref_status_for_push(struct ref *remote_refs, int send_mirror, |
631b5ef2 | 1376 | int force_update) |
20e8b465 TRC |
1377 | { |
1378 | struct ref *ref; | |
1379 | ||
1380 | for (ref = remote_refs; ref; ref = ref->next) { | |
8c5f6f71 | 1381 | int force_ref_update = ref->force || force_update; |
631b5ef2 | 1382 | int reject_reason = 0; |
8c5f6f71 | 1383 | |
20e8b465 | 1384 | if (ref->peer_ref) |
f4e54d02 | 1385 | oidcpy(&ref->new_oid, &ref->peer_ref->new_oid); |
20e8b465 TRC |
1386 | else if (!send_mirror) |
1387 | continue; | |
1388 | ||
f4e54d02 | 1389 | ref->deletion = is_null_oid(&ref->new_oid); |
20e8b465 | 1390 | if (!ref->deletion && |
f4e54d02 | 1391 | !oidcmp(&ref->old_oid, &ref->new_oid)) { |
20e8b465 TRC |
1392 | ref->status = REF_STATUS_UPTODATE; |
1393 | continue; | |
1394 | } | |
1395 | ||
a272b289 | 1396 | /* |
b2e93f88 AW |
1397 | * If the remote ref has moved and is now different |
1398 | * from what we expect, reject any push. | |
631b5ef2 JH |
1399 | * |
1400 | * It also is an error if the user told us to check | |
1401 | * with the remote-tracking branch to find the value | |
1402 | * to expect, but we did not have such a tracking | |
1403 | * branch. | |
1404 | */ | |
1405 | if (ref->expect_old_sha1) { | |
64ac39af | 1406 | if (oidcmp(&ref->old_oid, &ref->old_oid_expect)) |
631b5ef2 | 1407 | reject_reason = REF_STATUS_REJECT_STALE; |
b2e93f88 AW |
1408 | else |
1409 | /* If the ref isn't stale then force the update. */ | |
1410 | force_ref_update = 1; | |
631b5ef2 JH |
1411 | } |
1412 | ||
1413 | /* | |
b2e93f88 AW |
1414 | * If the update isn't already rejected then check |
1415 | * the usual "must fast-forward" rules. | |
631b5ef2 | 1416 | * |
256b9d70 JH |
1417 | * Decide whether an individual refspec A:B can be |
1418 | * pushed. The push will succeed if any of the | |
1419 | * following are true: | |
20e8b465 | 1420 | * |
a272b289 | 1421 | * (1) the remote reference B does not exist |
20e8b465 | 1422 | * |
a272b289 CR |
1423 | * (2) the remote reference B is being removed (i.e., |
1424 | * pushing :B where no source is specified) | |
20e8b465 | 1425 | * |
256b9d70 JH |
1426 | * (3) the destination is not under refs/tags/, and |
1427 | * if the old and new value is a commit, the new | |
1428 | * is a descendant of the old. | |
20e8b465 | 1429 | * |
a272b289 CR |
1430 | * (4) it is forced using the +A:B notation, or by |
1431 | * passing the --force argument | |
20e8b465 TRC |
1432 | */ |
1433 | ||
b2e93f88 | 1434 | if (!reject_reason && !ref->deletion && !is_null_oid(&ref->old_oid)) { |
59556548 | 1435 | if (starts_with(ref->name, "refs/tags/")) |
631b5ef2 | 1436 | reject_reason = REF_STATUS_REJECT_ALREADY_EXISTS; |
f4e54d02 | 1437 | else if (!has_object_file(&ref->old_oid)) |
631b5ef2 | 1438 | reject_reason = REF_STATUS_REJECT_FETCH_FIRST; |
21e1ee8f SB |
1439 | else if (!lookup_commit_reference_gently(the_repository, &ref->old_oid, 1) || |
1440 | !lookup_commit_reference_gently(the_repository, &ref->new_oid, 1)) | |
631b5ef2 | 1441 | reject_reason = REF_STATUS_REJECT_NEEDS_FORCE; |
6f3d57b6 | 1442 | else if (!ref_newer(&ref->new_oid, &ref->old_oid)) |
631b5ef2 | 1443 | reject_reason = REF_STATUS_REJECT_NONFASTFORWARD; |
20e8b465 | 1444 | } |
631b5ef2 JH |
1445 | |
1446 | /* | |
1447 | * "--force" will defeat any rejection implemented | |
1448 | * by the rules above. | |
1449 | */ | |
1450 | if (!force_ref_update) | |
1451 | ref->status = reject_reason; | |
1452 | else if (reject_reason) | |
1453 | ref->forced_update = 1; | |
20e8b465 TRC |
1454 | } |
1455 | } | |
1456 | ||
05e73682 JH |
1457 | static void set_merge(struct branch *ret) |
1458 | { | |
9e3751d4 | 1459 | struct remote *remote; |
05e73682 | 1460 | char *ref; |
fcd30b13 | 1461 | struct object_id oid; |
05e73682 JH |
1462 | int i; |
1463 | ||
ee2499fe JK |
1464 | if (!ret) |
1465 | return; /* no branch */ | |
1466 | if (ret->merge) | |
1467 | return; /* already run */ | |
1468 | if (!ret->remote_name || !ret->merge_nr) { | |
1469 | /* | |
1470 | * no merge config; let's make sure we don't confuse callers | |
1471 | * with a non-zero merge_nr but a NULL merge | |
1472 | */ | |
1473 | ret->merge_nr = 0; | |
1474 | return; | |
1475 | } | |
1476 | ||
9e3751d4 JK |
1477 | remote = remote_get(ret->remote_name); |
1478 | ||
05e73682 JH |
1479 | ret->merge = xcalloc(ret->merge_nr, sizeof(*ret->merge)); |
1480 | for (i = 0; i < ret->merge_nr; i++) { | |
1481 | ret->merge[i] = xcalloc(1, sizeof(**ret->merge)); | |
1482 | ret->merge[i]->src = xstrdup(ret->merge_name[i]); | |
9e3751d4 | 1483 | if (!remote_find_tracking(remote, ret->merge[i]) || |
05e73682 JH |
1484 | strcmp(ret->remote_name, ".")) |
1485 | continue; | |
1486 | if (dwim_ref(ret->merge_name[i], strlen(ret->merge_name[i]), | |
cca5fa64 | 1487 | &oid, &ref) == 1) |
05e73682 JH |
1488 | ret->merge[i]->dst = ref; |
1489 | else | |
1490 | ret->merge[i]->dst = xstrdup(ret->merge_name[i]); | |
1491 | } | |
1492 | } | |
1493 | ||
cf818348 DB |
1494 | struct branch *branch_get(const char *name) |
1495 | { | |
1496 | struct branch *ret; | |
1497 | ||
1498 | read_config(); | |
1499 | if (!name || !*name || !strcmp(name, "HEAD")) | |
1500 | ret = current_branch; | |
1501 | else | |
1502 | ret = make_branch(name, 0); | |
ee2499fe | 1503 | set_merge(ret); |
cf818348 DB |
1504 | return ret; |
1505 | } | |
1506 | ||
1507 | int branch_has_merge_config(struct branch *branch) | |
1508 | { | |
1509 | return branch && !!branch->merge; | |
1510 | } | |
1511 | ||
85682c19 SP |
1512 | int branch_merge_matches(struct branch *branch, |
1513 | int i, | |
1514 | const char *refname) | |
cf818348 | 1515 | { |
85682c19 | 1516 | if (!branch || i < 0 || i >= branch->merge_nr) |
cf818348 | 1517 | return 0; |
54457fe5 | 1518 | return refname_match(branch->merge[i]->src, refname); |
cf818348 | 1519 | } |
d71ab174 | 1520 | |
060e7766 | 1521 | __attribute__((format (printf,2,3))) |
3a429d0a JK |
1522 | static const char *error_buf(struct strbuf *err, const char *fmt, ...) |
1523 | { | |
1524 | if (err) { | |
1525 | va_list ap; | |
1526 | va_start(ap, fmt); | |
1527 | strbuf_vaddf(err, fmt, ap); | |
1528 | va_end(ap); | |
1529 | } | |
1530 | return NULL; | |
1531 | } | |
1532 | ||
1533 | const char *branch_get_upstream(struct branch *branch, struct strbuf *err) | |
1534 | { | |
1535 | if (!branch) | |
1536 | return error_buf(err, _("HEAD does not point to a branch")); | |
1ca41a19 JK |
1537 | |
1538 | if (!branch->merge || !branch->merge[0]) { | |
1539 | /* | |
1540 | * no merge config; is it because the user didn't define any, | |
1541 | * or because it is not a real branch, and get_branch | |
1542 | * auto-vivified it? | |
1543 | */ | |
3a429d0a JK |
1544 | if (!ref_exists(branch->refname)) |
1545 | return error_buf(err, _("no such branch: '%s'"), | |
1546 | branch->name); | |
1ca41a19 JK |
1547 | return error_buf(err, |
1548 | _("no upstream configured for branch '%s'"), | |
1549 | branch->name); | |
1550 | } | |
1551 | ||
1552 | if (!branch->merge[0]->dst) | |
3a429d0a JK |
1553 | return error_buf(err, |
1554 | _("upstream branch '%s' not stored as a remote-tracking branch"), | |
1555 | branch->merge[0]->src); | |
3a429d0a | 1556 | |
a9f9f8cc JK |
1557 | return branch->merge[0]->dst; |
1558 | } | |
1559 | ||
e291c75a JK |
1560 | static const char *tracking_for_push_dest(struct remote *remote, |
1561 | const char *refname, | |
1562 | struct strbuf *err) | |
1563 | { | |
1564 | char *ret; | |
1565 | ||
d000414e | 1566 | ret = apply_refspecs(&remote->fetch, refname); |
e291c75a JK |
1567 | if (!ret) |
1568 | return error_buf(err, | |
1569 | _("push destination '%s' on remote '%s' has no local tracking branch"), | |
1570 | refname, remote->name); | |
1571 | return ret; | |
1572 | } | |
1573 | ||
1574 | static const char *branch_get_push_1(struct branch *branch, struct strbuf *err) | |
1575 | { | |
1576 | struct remote *remote; | |
1577 | ||
e291c75a JK |
1578 | remote = remote_get(pushremote_for_branch(branch, NULL)); |
1579 | if (!remote) | |
1580 | return error_buf(err, | |
1581 | _("branch '%s' has no remote for pushing"), | |
1582 | branch->name); | |
1583 | ||
6bdb304b | 1584 | if (remote->push.nr) { |
e291c75a JK |
1585 | char *dst; |
1586 | const char *ret; | |
1587 | ||
d000414e | 1588 | dst = apply_refspecs(&remote->push, branch->refname); |
e291c75a JK |
1589 | if (!dst) |
1590 | return error_buf(err, | |
1591 | _("push refspecs for '%s' do not include '%s'"), | |
1592 | remote->name, branch->name); | |
1593 | ||
1594 | ret = tracking_for_push_dest(remote, dst, err); | |
1595 | free(dst); | |
1596 | return ret; | |
1597 | } | |
1598 | ||
1599 | if (remote->mirror) | |
1600 | return tracking_for_push_dest(remote, branch->refname, err); | |
1601 | ||
1602 | switch (push_default) { | |
1603 | case PUSH_DEFAULT_NOTHING: | |
1604 | return error_buf(err, _("push has no destination (push.default is 'nothing')")); | |
1605 | ||
1606 | case PUSH_DEFAULT_MATCHING: | |
1607 | case PUSH_DEFAULT_CURRENT: | |
1608 | return tracking_for_push_dest(remote, branch->refname, err); | |
1609 | ||
1610 | case PUSH_DEFAULT_UPSTREAM: | |
1611 | return branch_get_upstream(branch, err); | |
1612 | ||
1613 | case PUSH_DEFAULT_UNSPECIFIED: | |
1614 | case PUSH_DEFAULT_SIMPLE: | |
1615 | { | |
1616 | const char *up, *cur; | |
1617 | ||
1618 | up = branch_get_upstream(branch, err); | |
1619 | if (!up) | |
1620 | return NULL; | |
1621 | cur = tracking_for_push_dest(remote, branch->refname, err); | |
1622 | if (!cur) | |
1623 | return NULL; | |
1624 | if (strcmp(cur, up)) | |
1625 | return error_buf(err, | |
1626 | _("cannot resolve 'simple' push to a single destination")); | |
1627 | return cur; | |
1628 | } | |
1629 | } | |
1630 | ||
033abf97 | 1631 | BUG("unhandled push situation"); |
e291c75a JK |
1632 | } |
1633 | ||
1634 | const char *branch_get_push(struct branch *branch, struct strbuf *err) | |
1635 | { | |
b10731f4 KM |
1636 | if (!branch) |
1637 | return error_buf(err, _("HEAD does not point to a branch")); | |
1638 | ||
e291c75a JK |
1639 | if (!branch->push_tracking_ref) |
1640 | branch->push_tracking_ref = branch_get_push_1(branch, err); | |
1641 | return branch->push_tracking_ref; | |
1642 | } | |
1643 | ||
f8fb971e JH |
1644 | static int ignore_symref_update(const char *refname) |
1645 | { | |
f8fb971e JH |
1646 | int flag; |
1647 | ||
744c040b | 1648 | if (!resolve_ref_unsafe(refname, 0, NULL, &flag)) |
f8fb971e JH |
1649 | return 0; /* non-existing refs are OK */ |
1650 | return (flag & REF_ISSYMREF); | |
1651 | } | |
1652 | ||
f166db26 MH |
1653 | /* |
1654 | * Create and return a list of (struct ref) consisting of copies of | |
1655 | * each remote_ref that matches refspec. refspec must be a pattern. | |
1656 | * Fill in the copies' peer_ref to describe the local tracking refs to | |
1657 | * which they map. Omit any references that would map to an existing | |
1658 | * local symbolic ref. | |
1659 | */ | |
4577370e | 1660 | static struct ref *get_expanded_map(const struct ref *remote_refs, |
0ad4a5ff | 1661 | const struct refspec_item *refspec) |
d71ab174 | 1662 | { |
4577370e | 1663 | const struct ref *ref; |
d71ab174 DB |
1664 | struct ref *ret = NULL; |
1665 | struct ref **tail = &ret; | |
1666 | ||
d71ab174 | 1667 | for (ref = remote_refs; ref; ref = ref->next) { |
e31a17f7 MH |
1668 | char *expn_name = NULL; |
1669 | ||
d71ab174 DB |
1670 | if (strchr(ref->name, '^')) |
1671 | continue; /* a dereference item */ | |
e928213f | 1672 | if (match_name_with_pattern(refspec->src, ref->name, |
f8fb971e JH |
1673 | refspec->dst, &expn_name) && |
1674 | !ignore_symref_update(expn_name)) { | |
d71ab174 | 1675 | struct ref *cpy = copy_ref(ref); |
d71ab174 | 1676 | |
e928213f | 1677 | cpy->peer_ref = alloc_ref(expn_name); |
d71ab174 DB |
1678 | if (refspec->force) |
1679 | cpy->peer_ref->force = 1; | |
1680 | *tail = cpy; | |
1681 | tail = &cpy->next; | |
1682 | } | |
e31a17f7 | 1683 | free(expn_name); |
d71ab174 DB |
1684 | } |
1685 | ||
1686 | return ret; | |
1687 | } | |
1688 | ||
4577370e | 1689 | static const struct ref *find_ref_by_name_abbrev(const struct ref *refs, const char *name) |
d71ab174 | 1690 | { |
4577370e | 1691 | const struct ref *ref; |
d71ab174 | 1692 | for (ref = refs; ref; ref = ref->next) { |
54457fe5 | 1693 | if (refname_match(name, ref->name)) |
d71ab174 DB |
1694 | return ref; |
1695 | } | |
1696 | return NULL; | |
1697 | } | |
1698 | ||
4577370e | 1699 | struct ref *get_remote_ref(const struct ref *remote_refs, const char *name) |
d71ab174 | 1700 | { |
4577370e | 1701 | const struct ref *ref = find_ref_by_name_abbrev(remote_refs, name); |
d71ab174 DB |
1702 | |
1703 | if (!ref) | |
9ad7c5ae | 1704 | return NULL; |
d71ab174 DB |
1705 | |
1706 | return copy_ref(ref); | |
1707 | } | |
1708 | ||
1709 | static struct ref *get_local_ref(const char *name) | |
1710 | { | |
3eb96997 | 1711 | if (!name || name[0] == '\0') |
d71ab174 DB |
1712 | return NULL; |
1713 | ||
59556548 | 1714 | if (starts_with(name, "refs/")) |
59c69c0c | 1715 | return alloc_ref(name); |
d71ab174 | 1716 | |
59556548 CC |
1717 | if (starts_with(name, "heads/") || |
1718 | starts_with(name, "tags/") || | |
1719 | starts_with(name, "remotes/")) | |
8009768e | 1720 | return alloc_ref_with_prefix("refs/", 5, name); |
d71ab174 | 1721 | |
8009768e | 1722 | return alloc_ref_with_prefix("refs/heads/", 11, name); |
d71ab174 DB |
1723 | } |
1724 | ||
4577370e | 1725 | int get_fetch_map(const struct ref *remote_refs, |
0ad4a5ff | 1726 | const struct refspec_item *refspec, |
9ad7c5ae JH |
1727 | struct ref ***tail, |
1728 | int missing_ok) | |
d71ab174 | 1729 | { |
ef00d150 | 1730 | struct ref *ref_map, **rmp; |
d71ab174 DB |
1731 | |
1732 | if (refspec->pattern) { | |
1733 | ref_map = get_expanded_map(remote_refs, refspec); | |
1734 | } else { | |
9ad7c5ae JH |
1735 | const char *name = refspec->src[0] ? refspec->src : "HEAD"; |
1736 | ||
6e7b66ee JH |
1737 | if (refspec->exact_sha1) { |
1738 | ref_map = alloc_ref(name); | |
f4e54d02 | 1739 | get_oid_hex(name, &ref_map->old_oid); |
73302051 | 1740 | ref_map->exact_oid = 1; |
6e7b66ee JH |
1741 | } else { |
1742 | ref_map = get_remote_ref(remote_refs, name); | |
1743 | } | |
9ad7c5ae JH |
1744 | if (!missing_ok && !ref_map) |
1745 | die("Couldn't find remote ref %s", name); | |
1746 | if (ref_map) { | |
1747 | ref_map->peer_ref = get_local_ref(refspec->dst); | |
1748 | if (ref_map->peer_ref && refspec->force) | |
1749 | ref_map->peer_ref->force = 1; | |
1750 | } | |
d71ab174 DB |
1751 | } |
1752 | ||
ef00d150 DB |
1753 | for (rmp = &ref_map; *rmp; ) { |
1754 | if ((*rmp)->peer_ref) { | |
59556548 | 1755 | if (!starts_with((*rmp)->peer_ref->name, "refs/") || |
5c08c1f2 | 1756 | check_refname_format((*rmp)->peer_ref->name, 0)) { |
ef00d150 DB |
1757 | struct ref *ignore = *rmp; |
1758 | error("* Ignoring funny ref '%s' locally", | |
1759 | (*rmp)->peer_ref->name); | |
1760 | *rmp = (*rmp)->next; | |
1761 | free(ignore->peer_ref); | |
1762 | free(ignore); | |
1763 | continue; | |
1764 | } | |
1765 | } | |
1766 | rmp = &((*rmp)->next); | |
d71ab174 DB |
1767 | } |
1768 | ||
8f70a765 AR |
1769 | if (ref_map) |
1770 | tail_link_ref(ref_map, tail); | |
d71ab174 DB |
1771 | |
1772 | return 0; | |
1773 | } | |
be885d96 DB |
1774 | |
1775 | int resolve_remote_symref(struct ref *ref, struct ref *list) | |
1776 | { | |
1777 | if (!ref->symref) | |
1778 | return 0; | |
1779 | for (; list; list = list->next) | |
1780 | if (!strcmp(ref->symref, list->name)) { | |
f4e54d02 | 1781 | oidcpy(&ref->old_oid, &list->old_oid); |
be885d96 DB |
1782 | return 0; |
1783 | } | |
1784 | return 1; | |
1785 | } | |
6d21bf96 | 1786 | |
ec8452d5 JS |
1787 | static void unmark_and_free(struct commit_list *list, unsigned int mark) |
1788 | { | |
1789 | while (list) { | |
e510ab89 RS |
1790 | struct commit *commit = pop_commit(&list); |
1791 | commit->object.flags &= ~mark; | |
ec8452d5 JS |
1792 | } |
1793 | } | |
1794 | ||
6f3d57b6 | 1795 | int ref_newer(const struct object_id *new_oid, const struct object_id *old_oid) |
ec8452d5 JS |
1796 | { |
1797 | struct object *o; | |
f3bbe630 | 1798 | struct commit *old_commit, *new_commit; |
ec8452d5 JS |
1799 | struct commit_list *list, *used; |
1800 | int found = 0; | |
1801 | ||
75e5c0dc | 1802 | /* |
f3bbe630 BW |
1803 | * Both new_commit and old_commit must be commit-ish and new_commit is descendant of |
1804 | * old_commit. Otherwise we require --force. | |
ec8452d5 | 1805 | */ |
a74093da SB |
1806 | o = deref_tag(the_repository, parse_object(the_repository, old_oid), |
1807 | NULL, 0); | |
ec8452d5 JS |
1808 | if (!o || o->type != OBJ_COMMIT) |
1809 | return 0; | |
f3bbe630 | 1810 | old_commit = (struct commit *) o; |
ec8452d5 | 1811 | |
a74093da SB |
1812 | o = deref_tag(the_repository, parse_object(the_repository, new_oid), |
1813 | NULL, 0); | |
ec8452d5 JS |
1814 | if (!o || o->type != OBJ_COMMIT) |
1815 | return 0; | |
f3bbe630 | 1816 | new_commit = (struct commit *) o; |
ec8452d5 | 1817 | |
f3bbe630 | 1818 | if (parse_commit(new_commit) < 0) |
ec8452d5 JS |
1819 | return 0; |
1820 | ||
1821 | used = list = NULL; | |
f3bbe630 | 1822 | commit_list_insert(new_commit, &list); |
ec8452d5 | 1823 | while (list) { |
f3bbe630 BW |
1824 | new_commit = pop_most_recent_commit(&list, TMP_MARK); |
1825 | commit_list_insert(new_commit, &used); | |
1826 | if (new_commit == old_commit) { | |
ec8452d5 JS |
1827 | found = 1; |
1828 | break; | |
1829 | } | |
1830 | } | |
1831 | unmark_and_free(list, TMP_MARK); | |
1832 | unmark_and_free(used, TMP_MARK); | |
1833 | return found; | |
1834 | } | |
1835 | ||
6d21bf96 | 1836 | /* |
d7d1b496 JH |
1837 | * Lookup the upstream branch for the given branch and if present, optionally |
1838 | * compute the commit ahead/behind values for the pair. | |
1839 | * | |
1840 | * If abf is AHEAD_BEHIND_FULL, compute the full ahead/behind and return the | |
1841 | * counts in *num_ours and *num_theirs. If abf is AHEAD_BEHIND_QUICK, skip | |
1842 | * the (potentially expensive) a/b computation (*num_ours and *num_theirs are | |
1843 | * set to zero). | |
1844 | * | |
1845 | * The name of the upstream branch (or NULL if no upstream is defined) is | |
1846 | * returned via *upstream_name, if it is not itself NULL. | |
f2e08739 | 1847 | * |
979cb245 | 1848 | * Returns -1 if num_ours and num_theirs could not be filled in (e.g., no |
d7d1b496 JH |
1849 | * upstream defined, or ref does not exist). Returns 0 if the commits are |
1850 | * identical. Returns 1 if commits are different. | |
6d21bf96 | 1851 | */ |
979cb245 | 1852 | int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs, |
d7d1b496 | 1853 | const char **upstream_name, enum ahead_behind_flags abf) |
6d21bf96 | 1854 | { |
fcd30b13 | 1855 | struct object_id oid; |
6d21bf96 | 1856 | struct commit *ours, *theirs; |
6d21bf96 | 1857 | struct rev_info revs; |
0b282cc4 JK |
1858 | const char *base; |
1859 | struct argv_array argv = ARGV_ARRAY_INIT; | |
6d21bf96 | 1860 | |
f2e08739 | 1861 | /* Cannot stat unless we are marked to build on top of somebody else. */ |
3a429d0a | 1862 | base = branch_get_upstream(branch, NULL); |
979cb245 JK |
1863 | if (upstream_name) |
1864 | *upstream_name = base; | |
a9f9f8cc | 1865 | if (!base) |
979cb245 | 1866 | return -1; |
6d21bf96 | 1867 | |
f2e08739 | 1868 | /* Cannot stat if what we used to build on no longer exists */ |
34c290a6 | 1869 | if (read_ref(base, &oid)) |
f2e08739 | 1870 | return -1; |
2122f675 | 1871 | theirs = lookup_commit_reference(the_repository, &oid); |
6d21bf96 | 1872 | if (!theirs) |
f2e08739 | 1873 | return -1; |
6d21bf96 | 1874 | |
34c290a6 | 1875 | if (read_ref(branch->refname, &oid)) |
f2e08739 | 1876 | return -1; |
2122f675 | 1877 | ours = lookup_commit_reference(the_repository, &oid); |
6d21bf96 | 1878 | if (!ours) |
f2e08739 | 1879 | return -1; |
6d21bf96 | 1880 | |
d7d1b496 JH |
1881 | *num_theirs = *num_ours = 0; |
1882 | ||
6d21bf96 | 1883 | /* are we the same? */ |
d7d1b496 | 1884 | if (theirs == ours) |
979cb245 | 1885 | return 0; |
d7d1b496 JH |
1886 | if (abf == AHEAD_BEHIND_QUICK) |
1887 | return 1; | |
fd9b544a JH |
1888 | if (abf != AHEAD_BEHIND_FULL) |
1889 | BUG("stat_tracking_info: invalid abf '%d'", abf); | |
6d21bf96 | 1890 | |
8fbf879e | 1891 | /* Run "rev-list --left-right ours...theirs" internally... */ |
0b282cc4 JK |
1892 | argv_array_push(&argv, ""); /* ignored */ |
1893 | argv_array_push(&argv, "--left-right"); | |
1894 | argv_array_pushf(&argv, "%s...%s", | |
f2fd0760 | 1895 | oid_to_hex(&ours->object.oid), |
1896 | oid_to_hex(&theirs->object.oid)); | |
0b282cc4 | 1897 | argv_array_push(&argv, "--"); |
6d21bf96 JH |
1898 | |
1899 | init_revisions(&revs, NULL); | |
0b282cc4 | 1900 | setup_revisions(argv.argc, argv.argv, &revs, NULL); |
81c3ce3c SB |
1901 | if (prepare_revision_walk(&revs)) |
1902 | die("revision walk setup failed"); | |
6d21bf96 JH |
1903 | |
1904 | /* ... and count the commits on each side. */ | |
6d21bf96 JH |
1905 | while (1) { |
1906 | struct commit *c = get_revision(&revs); | |
1907 | if (!c) | |
1908 | break; | |
1909 | if (c->object.flags & SYMMETRIC_LEFT) | |
1910 | (*num_ours)++; | |
1911 | else | |
1912 | (*num_theirs)++; | |
1913 | } | |
c0234b2e JH |
1914 | |
1915 | /* clear object flags smudged by the above traversal */ | |
1916 | clear_commit_marks(ours, ALL_REV_FLAGS); | |
1917 | clear_commit_marks(theirs, ALL_REV_FLAGS); | |
0b282cc4 JK |
1918 | |
1919 | argv_array_clear(&argv); | |
d7d1b496 | 1920 | return 1; |
6d21bf96 JH |
1921 | } |
1922 | ||
1923 | /* | |
1924 | * Return true when there is anything to report, otherwise false. | |
1925 | */ | |
f39a757d JH |
1926 | int format_tracking_info(struct branch *branch, struct strbuf *sb, |
1927 | enum ahead_behind_flags abf) | |
6d21bf96 | 1928 | { |
f39a757d | 1929 | int ours, theirs, sti; |
979cb245 | 1930 | const char *full_base; |
2f50babe | 1931 | char *base; |
f2e08739 | 1932 | int upstream_is_gone = 0; |
6d21bf96 | 1933 | |
f39a757d JH |
1934 | sti = stat_tracking_info(branch, &ours, &theirs, &full_base, abf); |
1935 | if (sti < 0) { | |
979cb245 JK |
1936 | if (!full_base) |
1937 | return 0; | |
f2e08739 | 1938 | upstream_is_gone = 1; |
f2e08739 | 1939 | } |
6d21bf96 | 1940 | |
979cb245 | 1941 | base = shorten_unambiguous_ref(full_base, 0); |
f2e08739 JX |
1942 | if (upstream_is_gone) { |
1943 | strbuf_addf(sb, | |
1944 | _("Your branch is based on '%s', but the upstream is gone.\n"), | |
1945 | base); | |
1946 | if (advice_status_hints) | |
a22ae753 | 1947 | strbuf_addstr(sb, |
f2e08739 | 1948 | _(" (use \"git branch --unset-upstream\" to fixup)\n")); |
f39a757d | 1949 | } else if (!sti) { |
f223459b | 1950 | strbuf_addf(sb, |
7560f547 | 1951 | _("Your branch is up to date with '%s'.\n"), |
f223459b | 1952 | base); |
f39a757d JH |
1953 | } else if (abf == AHEAD_BEHIND_QUICK) { |
1954 | strbuf_addf(sb, | |
1955 | _("Your branch and '%s' refer to different commits.\n"), | |
1956 | base); | |
1957 | if (advice_status_hints) | |
1958 | strbuf_addf(sb, _(" (use \"%s\" for details)\n"), | |
1959 | "git status --ahead-behind"); | |
f2e08739 | 1960 | } else if (!theirs) { |
8a5b7494 JX |
1961 | strbuf_addf(sb, |
1962 | Q_("Your branch is ahead of '%s' by %d commit.\n", | |
1963 | "Your branch is ahead of '%s' by %d commits.\n", | |
f2e08739 JX |
1964 | ours), |
1965 | base, ours); | |
491e3075 | 1966 | if (advice_status_hints) |
a22ae753 | 1967 | strbuf_addstr(sb, |
491e3075 | 1968 | _(" (use \"git push\" to publish your local commits)\n")); |
f2e08739 | 1969 | } else if (!ours) { |
8a5b7494 JX |
1970 | strbuf_addf(sb, |
1971 | Q_("Your branch is behind '%s' by %d commit, " | |
1972 | "and can be fast-forwarded.\n", | |
1973 | "Your branch is behind '%s' by %d commits, " | |
1974 | "and can be fast-forwarded.\n", | |
f2e08739 JX |
1975 | theirs), |
1976 | base, theirs); | |
491e3075 | 1977 | if (advice_status_hints) |
a22ae753 | 1978 | strbuf_addstr(sb, |
491e3075 | 1979 | _(" (use \"git pull\" to update your local branch)\n")); |
c190ced6 | 1980 | } else { |
8a5b7494 JX |
1981 | strbuf_addf(sb, |
1982 | Q_("Your branch and '%s' have diverged,\n" | |
1983 | "and have %d and %d different commit each, " | |
1984 | "respectively.\n", | |
1985 | "Your branch and '%s' have diverged,\n" | |
1986 | "and have %d and %d different commits each, " | |
1987 | "respectively.\n", | |
f54bea44 | 1988 | ours + theirs), |
f2e08739 | 1989 | base, ours, theirs); |
491e3075 | 1990 | if (advice_status_hints) |
a22ae753 | 1991 | strbuf_addstr(sb, |
491e3075 | 1992 | _(" (use \"git pull\" to merge the remote branch into yours)\n")); |
c190ced6 | 1993 | } |
2f50babe | 1994 | free(base); |
6d21bf96 JH |
1995 | return 1; |
1996 | } | |
454e2025 | 1997 | |
455ade65 MH |
1998 | static int one_local_ref(const char *refname, const struct object_id *oid, |
1999 | int flag, void *cb_data) | |
454e2025 JS |
2000 | { |
2001 | struct ref ***local_tail = cb_data; | |
2002 | struct ref *ref; | |
454e2025 JS |
2003 | |
2004 | /* we already know it starts with refs/ to get here */ | |
8d9c5010 | 2005 | if (check_refname_format(refname + 5, 0)) |
454e2025 JS |
2006 | return 0; |
2007 | ||
96ffc06f | 2008 | ref = alloc_ref(refname); |
f4e54d02 | 2009 | oidcpy(&ref->new_oid, oid); |
454e2025 JS |
2010 | **local_tail = ref; |
2011 | *local_tail = &ref->next; | |
2012 | return 0; | |
2013 | } | |
2014 | ||
2015 | struct ref *get_local_heads(void) | |
2016 | { | |
55f0566f | 2017 | struct ref *local_refs = NULL, **local_tail = &local_refs; |
2b2a5be3 | 2018 | |
454e2025 JS |
2019 | for_each_ref(one_local_ref, &local_tail); |
2020 | return local_refs; | |
2021 | } | |
8ef51733 | 2022 | |
4229f1fa JS |
2023 | struct ref *guess_remote_head(const struct ref *head, |
2024 | const struct ref *refs, | |
2025 | int all) | |
8ef51733 | 2026 | { |
8ef51733 | 2027 | const struct ref *r; |
4229f1fa JS |
2028 | struct ref *list = NULL; |
2029 | struct ref **tail = &list; | |
8ef51733 | 2030 | |
6cb4e6cc | 2031 | if (!head) |
8ef51733 JS |
2032 | return NULL; |
2033 | ||
fbb074c2 JK |
2034 | /* |
2035 | * Some transports support directly peeking at | |
2036 | * where HEAD points; if that is the case, then | |
2037 | * we don't have to guess. | |
2038 | */ | |
2039 | if (head->symref) | |
2040 | return copy_ref(find_ref_by_name(refs, head->symref)); | |
2041 | ||
8ef51733 | 2042 | /* If refs/heads/master could be right, it is. */ |
4229f1fa JS |
2043 | if (!all) { |
2044 | r = find_ref_by_name(refs, "refs/heads/master"); | |
f4e54d02 | 2045 | if (r && !oidcmp(&r->old_oid, &head->old_oid)) |
4229f1fa JS |
2046 | return copy_ref(r); |
2047 | } | |
8ef51733 JS |
2048 | |
2049 | /* Look for another ref that points there */ | |
4229f1fa | 2050 | for (r = refs; r; r = r->next) { |
61adfd30 | 2051 | if (r != head && |
59556548 | 2052 | starts_with(r->name, "refs/heads/") && |
f4e54d02 | 2053 | !oidcmp(&r->old_oid, &head->old_oid)) { |
4229f1fa JS |
2054 | *tail = copy_ref(r); |
2055 | tail = &((*tail)->next); | |
2056 | if (!all) | |
2057 | break; | |
2058 | } | |
2059 | } | |
8ef51733 | 2060 | |
4229f1fa | 2061 | return list; |
8ef51733 | 2062 | } |
f2ef6075 JS |
2063 | |
2064 | struct stale_heads_info { | |
f2ef6075 JS |
2065 | struct string_list *ref_names; |
2066 | struct ref **stale_refs_tail; | |
a2ac50cb | 2067 | struct refspec *rs; |
f2ef6075 JS |
2068 | }; |
2069 | ||
455ade65 MH |
2070 | static int get_stale_heads_cb(const char *refname, const struct object_id *oid, |
2071 | int flags, void *cb_data) | |
f2ef6075 JS |
2072 | { |
2073 | struct stale_heads_info *info = cb_data; | |
e6f63712 | 2074 | struct string_list matches = STRING_LIST_INIT_DUP; |
0ad4a5ff | 2075 | struct refspec_item query; |
e6f63712 | 2076 | int i, stale = 1; |
0ad4a5ff | 2077 | memset(&query, 0, sizeof(struct refspec_item)); |
ed43de6e CMN |
2078 | query.dst = (char *)refname; |
2079 | ||
a2ac50cb | 2080 | query_refspecs_multiple(info->rs, &query, &matches); |
e6f63712 CMN |
2081 | if (matches.nr == 0) |
2082 | goto clean_exit; /* No matches */ | |
ed43de6e CMN |
2083 | |
2084 | /* | |
2085 | * If we did find a suitable refspec and it's not a symref and | |
2086 | * it's not in the list of refs that currently exist in that | |
e6f63712 CMN |
2087 | * remote, we consider it to be stale. In order to deal with |
2088 | * overlapping refspecs, we need to go over all of the | |
2089 | * matching refs. | |
ed43de6e | 2090 | */ |
e6f63712 CMN |
2091 | if (flags & REF_ISSYMREF) |
2092 | goto clean_exit; | |
2093 | ||
2094 | for (i = 0; stale && i < matches.nr; i++) | |
2095 | if (string_list_has_string(info->ref_names, matches.items[i].string)) | |
2096 | stale = 0; | |
2097 | ||
2098 | if (stale) { | |
ed43de6e | 2099 | struct ref *ref = make_linked_ref(refname, &info->stale_refs_tail); |
f4e54d02 | 2100 | oidcpy(&ref->new_oid, oid); |
f2ef6075 | 2101 | } |
ed43de6e | 2102 | |
e6f63712 CMN |
2103 | clean_exit: |
2104 | string_list_clear(&matches, 0); | |
f2ef6075 JS |
2105 | return 0; |
2106 | } | |
2107 | ||
a2ac50cb | 2108 | struct ref *get_stale_heads(struct refspec *rs, struct ref *fetch_map) |
f2ef6075 JS |
2109 | { |
2110 | struct ref *ref, *stale_refs = NULL; | |
183113a5 | 2111 | struct string_list ref_names = STRING_LIST_INIT_NODUP; |
f2ef6075 | 2112 | struct stale_heads_info info; |
2b2a5be3 | 2113 | |
f2ef6075 JS |
2114 | info.ref_names = &ref_names; |
2115 | info.stale_refs_tail = &stale_refs; | |
a2ac50cb | 2116 | info.rs = rs; |
f2ef6075 | 2117 | for (ref = fetch_map; ref; ref = ref->next) |
1d2f80fa | 2118 | string_list_append(&ref_names, ref->name); |
3383e199 | 2119 | string_list_sort(&ref_names); |
f2ef6075 JS |
2120 | for_each_ref(get_stale_heads_cb, &info); |
2121 | string_list_clear(&ref_names, 0); | |
2122 | return stale_refs; | |
2123 | } | |
28f5d176 JH |
2124 | |
2125 | /* | |
2126 | * Compare-and-swap | |
2127 | */ | |
a355b11d | 2128 | static void clear_cas_option(struct push_cas_option *cas) |
28f5d176 JH |
2129 | { |
2130 | int i; | |
2131 | ||
2132 | for (i = 0; i < cas->nr; i++) | |
2133 | free(cas->entry[i].refname); | |
2134 | free(cas->entry); | |
2135 | memset(cas, 0, sizeof(*cas)); | |
2136 | } | |
2137 | ||
2138 | static struct push_cas *add_cas_entry(struct push_cas_option *cas, | |
2139 | const char *refname, | |
2140 | size_t refnamelen) | |
2141 | { | |
2142 | struct push_cas *entry; | |
2143 | ALLOC_GROW(cas->entry, cas->nr + 1, cas->alloc); | |
2144 | entry = &cas->entry[cas->nr++]; | |
2145 | memset(entry, 0, sizeof(*entry)); | |
2146 | entry->refname = xmemdupz(refname, refnamelen); | |
2147 | return entry; | |
2148 | } | |
2149 | ||
8668976b | 2150 | static int parse_push_cas_option(struct push_cas_option *cas, const char *arg, int unset) |
28f5d176 JH |
2151 | { |
2152 | const char *colon; | |
2153 | struct push_cas *entry; | |
2154 | ||
2155 | if (unset) { | |
2156 | /* "--no-<option>" */ | |
2157 | clear_cas_option(cas); | |
2158 | return 0; | |
2159 | } | |
2160 | ||
2161 | if (!arg) { | |
2162 | /* just "--<option>" */ | |
2163 | cas->use_tracking_for_rest = 1; | |
2164 | return 0; | |
2165 | } | |
2166 | ||
2167 | /* "--<option>=refname" or "--<option>=refname:value" */ | |
2168 | colon = strchrnul(arg, ':'); | |
2169 | entry = add_cas_entry(cas, arg, colon - arg); | |
2170 | if (!*colon) | |
2171 | entry->use_tracking = 1; | |
eee98e74 | 2172 | else if (!colon[1]) |
b8566f8f | 2173 | oidclr(&entry->expect); |
2174 | else if (get_oid(colon + 1, &entry->expect)) | |
28f5d176 JH |
2175 | return error("cannot parse expected object name '%s'", colon + 1); |
2176 | return 0; | |
2177 | } | |
2178 | ||
2179 | int parseopt_push_cas_option(const struct option *opt, const char *arg, int unset) | |
2180 | { | |
2181 | return parse_push_cas_option(opt->value, arg, unset); | |
2182 | } | |
91048a95 JH |
2183 | |
2184 | int is_empty_cas(const struct push_cas_option *cas) | |
2185 | { | |
2186 | return !cas->use_tracking_for_rest && !cas->nr; | |
2187 | } | |
2188 | ||
2189 | /* | |
2190 | * Look at remote.fetch refspec and see if we have a remote | |
2191 | * tracking branch for the refname there. Fill its current | |
2192 | * value in sha1[]. | |
2193 | * If we cannot do so, return negative to signal an error. | |
2194 | */ | |
2195 | static int remote_tracking(struct remote *remote, const char *refname, | |
fcd30b13 | 2196 | struct object_id *oid) |
91048a95 JH |
2197 | { |
2198 | char *dst; | |
2199 | ||
d000414e | 2200 | dst = apply_refspecs(&remote->fetch, refname); |
91048a95 JH |
2201 | if (!dst) |
2202 | return -1; /* no tracking ref for refname at remote */ | |
34c290a6 | 2203 | if (read_ref(dst, oid)) |
91048a95 JH |
2204 | return -1; /* we know what the tracking ref is but we cannot read it */ |
2205 | return 0; | |
2206 | } | |
2207 | ||
2208 | static void apply_cas(struct push_cas_option *cas, | |
2209 | struct remote *remote, | |
2210 | struct ref *ref) | |
2211 | { | |
2212 | int i; | |
2213 | ||
2214 | /* Find an explicit --<option>=<name>[:<value>] entry */ | |
2215 | for (i = 0; i < cas->nr; i++) { | |
2216 | struct push_cas *entry = &cas->entry[i]; | |
54457fe5 | 2217 | if (!refname_match(entry->refname, ref->name)) |
91048a95 JH |
2218 | continue; |
2219 | ref->expect_old_sha1 = 1; | |
2220 | if (!entry->use_tracking) | |
b8566f8f | 2221 | oidcpy(&ref->old_oid_expect, &entry->expect); |
fcd30b13 | 2222 | else if (remote_tracking(remote, ref->name, &ref->old_oid_expect)) |
64ac39af | 2223 | oidclr(&ref->old_oid_expect); |
91048a95 JH |
2224 | return; |
2225 | } | |
2226 | ||
2227 | /* Are we using "--<option>" to cover all? */ | |
2228 | if (!cas->use_tracking_for_rest) | |
2229 | return; | |
2230 | ||
2231 | ref->expect_old_sha1 = 1; | |
fcd30b13 | 2232 | if (remote_tracking(remote, ref->name, &ref->old_oid_expect)) |
64ac39af | 2233 | oidclr(&ref->old_oid_expect); |
91048a95 JH |
2234 | } |
2235 | ||
2236 | void apply_push_cas(struct push_cas_option *cas, | |
2237 | struct remote *remote, | |
2238 | struct ref *remote_refs) | |
2239 | { | |
2240 | struct ref *ref; | |
2241 | for (ref = remote_refs; ref; ref = ref->next) | |
2242 | apply_cas(cas, remote, ref); | |
2243 | } |