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Commit | Line | Data |
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5751f490 DB |
1 | #include "cache.h" |
2 | #include "remote.h" | |
3 | #include "refs.h" | |
4 | ||
e0aaa29f DB |
5 | static struct refspec s_tag_refspec = { |
6 | 0, | |
7 | 1, | |
b84c343c | 8 | 0, |
e0aaa29f DB |
9 | "refs/tags/", |
10 | "refs/tags/" | |
11 | }; | |
12 | ||
13 | const struct refspec *tag_refspec = &s_tag_refspec; | |
14 | ||
844112ca JH |
15 | struct counted_string { |
16 | size_t len; | |
17 | const char *s; | |
18 | }; | |
55029ae4 DB |
19 | struct rewrite { |
20 | const char *base; | |
844112ca JH |
21 | size_t baselen; |
22 | struct counted_string *instead_of; | |
55029ae4 DB |
23 | int instead_of_nr; |
24 | int instead_of_alloc; | |
25 | }; | |
26 | ||
5751f490 | 27 | static struct remote **remotes; |
2d31347b DB |
28 | static int remotes_alloc; |
29 | static int remotes_nr; | |
5751f490 | 30 | |
cf818348 | 31 | static struct branch **branches; |
2d31347b DB |
32 | static int branches_alloc; |
33 | static int branches_nr; | |
cf818348 DB |
34 | |
35 | static struct branch *current_branch; | |
36 | static const char *default_remote_name; | |
37 | ||
55029ae4 DB |
38 | static struct rewrite **rewrite; |
39 | static int rewrite_alloc; | |
40 | static int rewrite_nr; | |
41 | ||
5751f490 DB |
42 | #define BUF_SIZE (2048) |
43 | static char buffer[BUF_SIZE]; | |
44 | ||
55029ae4 DB |
45 | static const char *alias_url(const char *url) |
46 | { | |
47 | int i, j; | |
844112ca JH |
48 | char *ret; |
49 | struct counted_string *longest; | |
50 | int longest_i; | |
51 | ||
52 | longest = NULL; | |
53 | longest_i = -1; | |
55029ae4 DB |
54 | for (i = 0; i < rewrite_nr; i++) { |
55 | if (!rewrite[i]) | |
56 | continue; | |
57 | for (j = 0; j < rewrite[i]->instead_of_nr; j++) { | |
844112ca JH |
58 | if (!prefixcmp(url, rewrite[i]->instead_of[j].s) && |
59 | (!longest || | |
60 | longest->len < rewrite[i]->instead_of[j].len)) { | |
61 | longest = &(rewrite[i]->instead_of[j]); | |
62 | longest_i = i; | |
55029ae4 DB |
63 | } |
64 | } | |
65 | } | |
844112ca JH |
66 | if (!longest) |
67 | return url; | |
68 | ||
69 | ret = malloc(rewrite[longest_i]->baselen + | |
70 | (strlen(url) - longest->len) + 1); | |
71 | strcpy(ret, rewrite[longest_i]->base); | |
72 | strcpy(ret + rewrite[longest_i]->baselen, url + longest->len); | |
73 | return ret; | |
55029ae4 DB |
74 | } |
75 | ||
5751f490 DB |
76 | static void add_push_refspec(struct remote *remote, const char *ref) |
77 | { | |
2d31347b DB |
78 | ALLOC_GROW(remote->push_refspec, |
79 | remote->push_refspec_nr + 1, | |
80 | remote->push_refspec_alloc); | |
81 | remote->push_refspec[remote->push_refspec_nr++] = ref; | |
5751f490 DB |
82 | } |
83 | ||
5d46c9d4 DB |
84 | static void add_fetch_refspec(struct remote *remote, const char *ref) |
85 | { | |
2d31347b DB |
86 | ALLOC_GROW(remote->fetch_refspec, |
87 | remote->fetch_refspec_nr + 1, | |
88 | remote->fetch_refspec_alloc); | |
89 | remote->fetch_refspec[remote->fetch_refspec_nr++] = ref; | |
5d46c9d4 DB |
90 | } |
91 | ||
28b91f8a | 92 | static void add_url(struct remote *remote, const char *url) |
5751f490 | 93 | { |
2d31347b DB |
94 | ALLOC_GROW(remote->url, remote->url_nr + 1, remote->url_alloc); |
95 | remote->url[remote->url_nr++] = url; | |
5751f490 DB |
96 | } |
97 | ||
55029ae4 DB |
98 | static void add_url_alias(struct remote *remote, const char *url) |
99 | { | |
100 | add_url(remote, alias_url(url)); | |
101 | } | |
102 | ||
5751f490 DB |
103 | static struct remote *make_remote(const char *name, int len) |
104 | { | |
2d31347b DB |
105 | struct remote *ret; |
106 | int i; | |
5751f490 | 107 | |
2d31347b DB |
108 | for (i = 0; i < remotes_nr; i++) { |
109 | if (len ? (!strncmp(name, remotes[i]->name, len) && | |
110 | !remotes[i]->name[len]) : | |
111 | !strcmp(name, remotes[i]->name)) | |
112 | return remotes[i]; | |
5751f490 DB |
113 | } |
114 | ||
2d31347b DB |
115 | ret = xcalloc(1, sizeof(struct remote)); |
116 | ALLOC_GROW(remotes, remotes_nr + 1, remotes_alloc); | |
117 | remotes[remotes_nr++] = ret; | |
5751f490 | 118 | if (len) |
2d31347b | 119 | ret->name = xstrndup(name, len); |
5751f490 | 120 | else |
2d31347b DB |
121 | ret->name = xstrdup(name); |
122 | return ret; | |
5751f490 DB |
123 | } |
124 | ||
cf818348 DB |
125 | static void add_merge(struct branch *branch, const char *name) |
126 | { | |
2d31347b DB |
127 | ALLOC_GROW(branch->merge_name, branch->merge_nr + 1, |
128 | branch->merge_alloc); | |
129 | branch->merge_name[branch->merge_nr++] = name; | |
cf818348 DB |
130 | } |
131 | ||
132 | static struct branch *make_branch(const char *name, int len) | |
133 | { | |
2d31347b DB |
134 | struct branch *ret; |
135 | int i; | |
cf818348 DB |
136 | char *refname; |
137 | ||
2d31347b DB |
138 | for (i = 0; i < branches_nr; i++) { |
139 | if (len ? (!strncmp(name, branches[i]->name, len) && | |
140 | !branches[i]->name[len]) : | |
141 | !strcmp(name, branches[i]->name)) | |
142 | return branches[i]; | |
cf818348 DB |
143 | } |
144 | ||
2d31347b DB |
145 | ALLOC_GROW(branches, branches_nr + 1, branches_alloc); |
146 | ret = xcalloc(1, sizeof(struct branch)); | |
147 | branches[branches_nr++] = ret; | |
cf818348 | 148 | if (len) |
2d31347b | 149 | ret->name = xstrndup(name, len); |
cf818348 | 150 | else |
2d31347b | 151 | ret->name = xstrdup(name); |
cf818348 DB |
152 | refname = malloc(strlen(name) + strlen("refs/heads/") + 1); |
153 | strcpy(refname, "refs/heads/"); | |
2d31347b DB |
154 | strcpy(refname + strlen("refs/heads/"), ret->name); |
155 | ret->refname = refname; | |
cf818348 | 156 | |
2d31347b | 157 | return ret; |
cf818348 DB |
158 | } |
159 | ||
55029ae4 DB |
160 | static struct rewrite *make_rewrite(const char *base, int len) |
161 | { | |
162 | struct rewrite *ret; | |
163 | int i; | |
164 | ||
165 | for (i = 0; i < rewrite_nr; i++) { | |
844112ca JH |
166 | if (len |
167 | ? (len == rewrite[i]->baselen && | |
168 | !strncmp(base, rewrite[i]->base, len)) | |
169 | : !strcmp(base, rewrite[i]->base)) | |
55029ae4 DB |
170 | return rewrite[i]; |
171 | } | |
172 | ||
173 | ALLOC_GROW(rewrite, rewrite_nr + 1, rewrite_alloc); | |
174 | ret = xcalloc(1, sizeof(struct rewrite)); | |
175 | rewrite[rewrite_nr++] = ret; | |
844112ca | 176 | if (len) { |
55029ae4 | 177 | ret->base = xstrndup(base, len); |
844112ca JH |
178 | ret->baselen = len; |
179 | } | |
180 | else { | |
55029ae4 | 181 | ret->base = xstrdup(base); |
844112ca JH |
182 | ret->baselen = strlen(base); |
183 | } | |
55029ae4 DB |
184 | return ret; |
185 | } | |
186 | ||
187 | static void add_instead_of(struct rewrite *rewrite, const char *instead_of) | |
188 | { | |
189 | ALLOC_GROW(rewrite->instead_of, rewrite->instead_of_nr + 1, rewrite->instead_of_alloc); | |
844112ca JH |
190 | rewrite->instead_of[rewrite->instead_of_nr].s = instead_of; |
191 | rewrite->instead_of[rewrite->instead_of_nr].len = strlen(instead_of); | |
192 | rewrite->instead_of_nr++; | |
55029ae4 DB |
193 | } |
194 | ||
5751f490 DB |
195 | static void read_remotes_file(struct remote *remote) |
196 | { | |
197 | FILE *f = fopen(git_path("remotes/%s", remote->name), "r"); | |
198 | ||
199 | if (!f) | |
200 | return; | |
201 | while (fgets(buffer, BUF_SIZE, f)) { | |
202 | int value_list; | |
203 | char *s, *p; | |
204 | ||
205 | if (!prefixcmp(buffer, "URL:")) { | |
206 | value_list = 0; | |
207 | s = buffer + 4; | |
208 | } else if (!prefixcmp(buffer, "Push:")) { | |
209 | value_list = 1; | |
210 | s = buffer + 5; | |
5d46c9d4 DB |
211 | } else if (!prefixcmp(buffer, "Pull:")) { |
212 | value_list = 2; | |
213 | s = buffer + 5; | |
5751f490 DB |
214 | } else |
215 | continue; | |
216 | ||
217 | while (isspace(*s)) | |
218 | s++; | |
219 | if (!*s) | |
220 | continue; | |
221 | ||
222 | p = s + strlen(s); | |
223 | while (isspace(p[-1])) | |
224 | *--p = 0; | |
225 | ||
226 | switch (value_list) { | |
227 | case 0: | |
55029ae4 | 228 | add_url_alias(remote, xstrdup(s)); |
5751f490 DB |
229 | break; |
230 | case 1: | |
231 | add_push_refspec(remote, xstrdup(s)); | |
232 | break; | |
5d46c9d4 DB |
233 | case 2: |
234 | add_fetch_refspec(remote, xstrdup(s)); | |
235 | break; | |
5751f490 DB |
236 | } |
237 | } | |
238 | fclose(f); | |
239 | } | |
240 | ||
241 | static void read_branches_file(struct remote *remote) | |
242 | { | |
243 | const char *slash = strchr(remote->name, '/'); | |
cf818348 | 244 | char *frag; |
472fa4cd | 245 | struct strbuf branch; |
5751f490 DB |
246 | int n = slash ? slash - remote->name : 1000; |
247 | FILE *f = fopen(git_path("branches/%.*s", n, remote->name), "r"); | |
248 | char *s, *p; | |
249 | int len; | |
250 | ||
251 | if (!f) | |
252 | return; | |
253 | s = fgets(buffer, BUF_SIZE, f); | |
254 | fclose(f); | |
255 | if (!s) | |
256 | return; | |
257 | while (isspace(*s)) | |
258 | s++; | |
259 | if (!*s) | |
260 | return; | |
261 | p = s + strlen(s); | |
262 | while (isspace(p[-1])) | |
263 | *--p = 0; | |
264 | len = p - s; | |
265 | if (slash) | |
266 | len += strlen(slash); | |
267 | p = xmalloc(len + 1); | |
268 | strcpy(p, s); | |
269 | if (slash) | |
270 | strcat(p, slash); | |
472fa4cd DB |
271 | |
272 | /* | |
273 | * With "slash", e.g. "git fetch jgarzik/netdev-2.6" when | |
274 | * reading from $GIT_DIR/branches/jgarzik fetches "HEAD" from | |
275 | * the partial URL obtained from the branches file plus | |
276 | * "/netdev-2.6" and does not store it in any tracking ref. | |
277 | * #branch specifier in the file is ignored. | |
278 | * | |
279 | * Otherwise, the branches file would have URL and optionally | |
280 | * #branch specified. The "master" (or specified) branch is | |
281 | * fetched and stored in the local branch of the same name. | |
282 | */ | |
283 | strbuf_init(&branch, 0); | |
cf818348 DB |
284 | frag = strchr(p, '#'); |
285 | if (frag) { | |
286 | *(frag++) = '\0'; | |
472fa4cd DB |
287 | strbuf_addf(&branch, "refs/heads/%s", frag); |
288 | } else | |
289 | strbuf_addstr(&branch, "refs/heads/master"); | |
290 | if (!slash) { | |
291 | strbuf_addf(&branch, ":refs/heads/%s", remote->name); | |
cf818348 | 292 | } else { |
472fa4cd DB |
293 | strbuf_reset(&branch); |
294 | strbuf_addstr(&branch, "HEAD:"); | |
cf818348 | 295 | } |
55029ae4 | 296 | add_url_alias(remote, p); |
472fa4cd | 297 | add_fetch_refspec(remote, strbuf_detach(&branch, 0)); |
d71ab174 | 298 | remote->fetch_tags = 1; /* always auto-follow */ |
5751f490 DB |
299 | } |
300 | ||
ef90d6d4 | 301 | static int handle_config(const char *key, const char *value, void *cb) |
5751f490 DB |
302 | { |
303 | const char *name; | |
304 | const char *subkey; | |
305 | struct remote *remote; | |
cf818348 DB |
306 | struct branch *branch; |
307 | if (!prefixcmp(key, "branch.")) { | |
308 | name = key + 7; | |
309 | subkey = strrchr(name, '.'); | |
cf818348 DB |
310 | if (!subkey) |
311 | return 0; | |
896c0535 | 312 | branch = make_branch(name, subkey - name); |
cf818348 | 313 | if (!strcmp(subkey, ".remote")) { |
d2370cc2 JH |
314 | if (!value) |
315 | return config_error_nonbool(key); | |
cf818348 DB |
316 | branch->remote_name = xstrdup(value); |
317 | if (branch == current_branch) | |
318 | default_remote_name = branch->remote_name; | |
d2370cc2 JH |
319 | } else if (!strcmp(subkey, ".merge")) { |
320 | if (!value) | |
321 | return config_error_nonbool(key); | |
cf818348 | 322 | add_merge(branch, xstrdup(value)); |
d2370cc2 | 323 | } |
cf818348 | 324 | return 0; |
5751f490 | 325 | } |
55029ae4 DB |
326 | if (!prefixcmp(key, "url.")) { |
327 | struct rewrite *rewrite; | |
60e3aba9 | 328 | name = key + 4; |
55029ae4 DB |
329 | subkey = strrchr(name, '.'); |
330 | if (!subkey) | |
331 | return 0; | |
332 | rewrite = make_rewrite(name, subkey - name); | |
333 | if (!strcmp(subkey, ".insteadof")) { | |
334 | if (!value) | |
335 | return config_error_nonbool(key); | |
336 | add_instead_of(rewrite, xstrdup(value)); | |
337 | } | |
338 | } | |
5751f490 DB |
339 | if (prefixcmp(key, "remote.")) |
340 | return 0; | |
341 | name = key + 7; | |
342 | subkey = strrchr(name, '.'); | |
343 | if (!subkey) | |
344 | return error("Config with no key for remote %s", name); | |
345 | if (*subkey == '/') { | |
346 | warning("Config remote shorthand cannot begin with '/': %s", name); | |
347 | return 0; | |
348 | } | |
349 | remote = make_remote(name, subkey - name); | |
84bb2dfd PB |
350 | if (!strcmp(subkey, ".mirror")) |
351 | remote->mirror = git_config_bool(key, value); | |
352 | else if (!strcmp(subkey, ".skipdefaultupdate")) | |
353 | remote->skip_default_update = git_config_bool(key, value); | |
354 | ||
355 | else if (!strcmp(subkey, ".url")) { | |
356 | const char *v; | |
357 | if (git_config_string(&v, key, value)) | |
358 | return -1; | |
359 | add_url(remote, v); | |
5751f490 | 360 | } else if (!strcmp(subkey, ".push")) { |
84bb2dfd PB |
361 | const char *v; |
362 | if (git_config_string(&v, key, value)) | |
363 | return -1; | |
364 | add_push_refspec(remote, v); | |
5d46c9d4 | 365 | } else if (!strcmp(subkey, ".fetch")) { |
84bb2dfd PB |
366 | const char *v; |
367 | if (git_config_string(&v, key, value)) | |
368 | return -1; | |
369 | add_fetch_refspec(remote, v); | |
5751f490 | 370 | } else if (!strcmp(subkey, ".receivepack")) { |
84bb2dfd PB |
371 | const char *v; |
372 | if (git_config_string(&v, key, value)) | |
373 | return -1; | |
5751f490 | 374 | if (!remote->receivepack) |
84bb2dfd | 375 | remote->receivepack = v; |
5751f490 DB |
376 | else |
377 | error("more than one receivepack given, using the first"); | |
0012ba21 | 378 | } else if (!strcmp(subkey, ".uploadpack")) { |
84bb2dfd PB |
379 | const char *v; |
380 | if (git_config_string(&v, key, value)) | |
381 | return -1; | |
0012ba21 | 382 | if (!remote->uploadpack) |
84bb2dfd | 383 | remote->uploadpack = v; |
0012ba21 DB |
384 | else |
385 | error("more than one uploadpack given, using the first"); | |
d71ab174 DB |
386 | } else if (!strcmp(subkey, ".tagopt")) { |
387 | if (!strcmp(value, "--no-tags")) | |
388 | remote->fetch_tags = -1; | |
14c98218 | 389 | } else if (!strcmp(subkey, ".proxy")) { |
84bb2dfd PB |
390 | return git_config_string((const char **)&remote->http_proxy, |
391 | key, value); | |
392 | } | |
5751f490 DB |
393 | return 0; |
394 | } | |
395 | ||
55029ae4 DB |
396 | static void alias_all_urls(void) |
397 | { | |
398 | int i, j; | |
399 | for (i = 0; i < remotes_nr; i++) { | |
400 | if (!remotes[i]) | |
401 | continue; | |
402 | for (j = 0; j < remotes[i]->url_nr; j++) { | |
403 | remotes[i]->url[j] = alias_url(remotes[i]->url[j]); | |
404 | } | |
405 | } | |
406 | } | |
407 | ||
5751f490 DB |
408 | static void read_config(void) |
409 | { | |
410 | unsigned char sha1[20]; | |
411 | const char *head_ref; | |
412 | int flag; | |
413 | if (default_remote_name) // did this already | |
414 | return; | |
415 | default_remote_name = xstrdup("origin"); | |
416 | current_branch = NULL; | |
417 | head_ref = resolve_ref("HEAD", sha1, 0, &flag); | |
418 | if (head_ref && (flag & REF_ISSYMREF) && | |
419 | !prefixcmp(head_ref, "refs/heads/")) { | |
cf818348 DB |
420 | current_branch = |
421 | make_branch(head_ref + strlen("refs/heads/"), 0); | |
5751f490 | 422 | } |
ef90d6d4 | 423 | git_config(handle_config, NULL); |
55029ae4 | 424 | alias_all_urls(); |
5751f490 DB |
425 | } |
426 | ||
b2a56276 JH |
427 | /* |
428 | * We need to make sure the tracking branches are well formed, but a | |
429 | * wildcard refspec in "struct refspec" must have a trailing slash. We | |
430 | * temporarily drop the trailing '/' while calling check_ref_format(), | |
431 | * and put it back. The caller knows that a CHECK_REF_FORMAT_ONELEVEL | |
432 | * error return is Ok for a wildcard refspec. | |
433 | */ | |
434 | static int verify_refname(char *name, int is_glob) | |
435 | { | |
436 | int result, len = -1; | |
437 | ||
438 | if (is_glob) { | |
439 | len = strlen(name); | |
440 | assert(name[len - 1] == '/'); | |
441 | name[len - 1] = '\0'; | |
442 | } | |
443 | result = check_ref_format(name); | |
444 | if (is_glob) | |
445 | name[len - 1] = '/'; | |
446 | return result; | |
447 | } | |
448 | ||
24b6177e | 449 | static struct refspec *parse_refspec_internal(int nr_refspec, const char **refspec, int fetch, int verify) |
6b62816c DB |
450 | { |
451 | int i; | |
ef00d150 | 452 | int st; |
6b62816c | 453 | struct refspec *rs = xcalloc(sizeof(*rs), nr_refspec); |
46220ca1 | 454 | |
6b62816c | 455 | for (i = 0; i < nr_refspec; i++) { |
b2a56276 | 456 | size_t llen; |
46220ca1 JH |
457 | int is_glob; |
458 | const char *lhs, *rhs; | |
459 | ||
b2a56276 | 460 | llen = is_glob = 0; |
46220ca1 JH |
461 | |
462 | lhs = refspec[i]; | |
463 | if (*lhs == '+') { | |
6b62816c | 464 | rs[i].force = 1; |
46220ca1 | 465 | lhs++; |
6b62816c | 466 | } |
46220ca1 JH |
467 | |
468 | rhs = strrchr(lhs, ':'); | |
a83619d6 PB |
469 | |
470 | /* | |
471 | * Before going on, special case ":" (or "+:") as a refspec | |
472 | * for matching refs. | |
473 | */ | |
474 | if (!fetch && rhs == lhs && rhs[1] == '\0') { | |
475 | rs[i].matching = 1; | |
476 | continue; | |
477 | } | |
478 | ||
46220ca1 | 479 | if (rhs) { |
b2a56276 | 480 | size_t rlen = strlen(++rhs); |
46220ca1 | 481 | is_glob = (2 <= rlen && !strcmp(rhs + rlen - 2, "/*")); |
b2a56276 | 482 | rs[i].dst = xstrndup(rhs, rlen - is_glob); |
6b62816c | 483 | } |
ef00d150 | 484 | |
46220ca1 | 485 | llen = (rhs ? (rhs - lhs - 1) : strlen(lhs)); |
7d19da46 JH |
486 | if (2 <= llen && !memcmp(lhs + llen - 2, "/*", 2)) { |
487 | if ((rhs && !is_glob) || (!rhs && fetch)) | |
488 | goto invalid; | |
489 | is_glob = 1; | |
b2a56276 | 490 | llen--; |
7d19da46 JH |
491 | } else if (rhs && is_glob) { |
492 | goto invalid; | |
ef00d150 | 493 | } |
7d19da46 | 494 | |
46220ca1 JH |
495 | rs[i].pattern = is_glob; |
496 | rs[i].src = xstrndup(lhs, llen); | |
497 | ||
498 | if (fetch) { | |
499 | /* | |
500 | * LHS | |
501 | * - empty is allowed; it means HEAD. | |
502 | * - otherwise it must be a valid looking ref. | |
503 | */ | |
504 | if (!*rs[i].src) | |
505 | ; /* empty is ok */ | |
506 | else { | |
b2a56276 | 507 | st = verify_refname(rs[i].src, is_glob); |
46220ca1 JH |
508 | if (st && st != CHECK_REF_FORMAT_ONELEVEL) |
509 | goto invalid; | |
510 | } | |
511 | /* | |
512 | * RHS | |
7d19da46 | 513 | * - missing is ok, and is same as empty. |
46220ca1 JH |
514 | * - empty is ok; it means not to store. |
515 | * - otherwise it must be a valid looking ref. | |
516 | */ | |
517 | if (!rs[i].dst) { | |
518 | ; /* ok */ | |
519 | } else if (!*rs[i].dst) { | |
520 | ; /* ok */ | |
521 | } else { | |
b2a56276 | 522 | st = verify_refname(rs[i].dst, is_glob); |
46220ca1 JH |
523 | if (st && st != CHECK_REF_FORMAT_ONELEVEL) |
524 | goto invalid; | |
525 | } | |
526 | } else { | |
527 | /* | |
528 | * LHS | |
529 | * - empty is allowed; it means delete. | |
530 | * - when wildcarded, it must be a valid looking ref. | |
531 | * - otherwise, it must be an extended SHA-1, but | |
532 | * there is no existing way to validate this. | |
533 | */ | |
534 | if (!*rs[i].src) | |
535 | ; /* empty is ok */ | |
536 | else if (is_glob) { | |
b2a56276 | 537 | st = verify_refname(rs[i].src, is_glob); |
46220ca1 JH |
538 | if (st && st != CHECK_REF_FORMAT_ONELEVEL) |
539 | goto invalid; | |
540 | } | |
541 | else | |
542 | ; /* anything goes, for now */ | |
543 | /* | |
544 | * RHS | |
545 | * - missing is allowed, but LHS then must be a | |
546 | * valid looking ref. | |
547 | * - empty is not allowed. | |
548 | * - otherwise it must be a valid looking ref. | |
549 | */ | |
550 | if (!rs[i].dst) { | |
b2a56276 | 551 | st = verify_refname(rs[i].src, is_glob); |
46220ca1 JH |
552 | if (st && st != CHECK_REF_FORMAT_ONELEVEL) |
553 | goto invalid; | |
554 | } else if (!*rs[i].dst) { | |
555 | goto invalid; | |
556 | } else { | |
b2a56276 | 557 | st = verify_refname(rs[i].dst, is_glob); |
46220ca1 JH |
558 | if (st && st != CHECK_REF_FORMAT_ONELEVEL) |
559 | goto invalid; | |
560 | } | |
ef00d150 | 561 | } |
6b62816c DB |
562 | } |
563 | return rs; | |
46220ca1 JH |
564 | |
565 | invalid: | |
24b6177e JF |
566 | if (verify) { |
567 | free(rs); | |
568 | return NULL; | |
569 | } | |
46220ca1 JH |
570 | die("Invalid refspec '%s'", refspec[i]); |
571 | } | |
572 | ||
24b6177e JF |
573 | int valid_fetch_refspec(const char *fetch_refspec_str) |
574 | { | |
575 | const char *fetch_refspec[] = { fetch_refspec_str }; | |
576 | struct refspec *refspec; | |
577 | ||
578 | refspec = parse_refspec_internal(1, fetch_refspec, 1, 1); | |
579 | if (refspec) | |
580 | free(refspec); | |
581 | return !!refspec; | |
582 | } | |
583 | ||
46220ca1 JH |
584 | struct refspec *parse_fetch_refspec(int nr_refspec, const char **refspec) |
585 | { | |
24b6177e | 586 | return parse_refspec_internal(nr_refspec, refspec, 1, 0); |
46220ca1 JH |
587 | } |
588 | ||
589 | struct refspec *parse_push_refspec(int nr_refspec, const char **refspec) | |
590 | { | |
24b6177e | 591 | return parse_refspec_internal(nr_refspec, refspec, 0, 0); |
6b62816c DB |
592 | } |
593 | ||
df93e33c DB |
594 | static int valid_remote_nick(const char *name) |
595 | { | |
596 | if (!name[0] || /* not empty */ | |
597 | (name[0] == '.' && /* not "." */ | |
598 | (!name[1] || /* not ".." */ | |
599 | (name[1] == '.' && !name[2])))) | |
600 | return 0; | |
601 | return !strchr(name, '/'); /* no slash */ | |
602 | } | |
603 | ||
5751f490 DB |
604 | struct remote *remote_get(const char *name) |
605 | { | |
606 | struct remote *ret; | |
607 | ||
608 | read_config(); | |
609 | if (!name) | |
610 | name = default_remote_name; | |
611 | ret = make_remote(name, 0); | |
df93e33c | 612 | if (valid_remote_nick(name)) { |
28b91f8a | 613 | if (!ret->url) |
5751f490 | 614 | read_remotes_file(ret); |
28b91f8a | 615 | if (!ret->url) |
5751f490 DB |
616 | read_branches_file(ret); |
617 | } | |
28b91f8a | 618 | if (!ret->url) |
55029ae4 | 619 | add_url_alias(ret, name); |
28b91f8a | 620 | if (!ret->url) |
5751f490 | 621 | return NULL; |
46220ca1 JH |
622 | ret->fetch = parse_fetch_refspec(ret->fetch_refspec_nr, ret->fetch_refspec); |
623 | ret->push = parse_push_refspec(ret->push_refspec_nr, ret->push_refspec); | |
5751f490 DB |
624 | return ret; |
625 | } | |
6b62816c | 626 | |
b42f6927 JS |
627 | int for_each_remote(each_remote_fn fn, void *priv) |
628 | { | |
629 | int i, result = 0; | |
630 | read_config(); | |
2d31347b | 631 | for (i = 0; i < remotes_nr && !result; i++) { |
b42f6927 JS |
632 | struct remote *r = remotes[i]; |
633 | if (!r) | |
634 | continue; | |
635 | if (!r->fetch) | |
46220ca1 JH |
636 | r->fetch = parse_fetch_refspec(r->fetch_refspec_nr, |
637 | r->fetch_refspec); | |
b42f6927 | 638 | if (!r->push) |
46220ca1 JH |
639 | r->push = parse_push_refspec(r->push_refspec_nr, |
640 | r->push_refspec); | |
b42f6927 JS |
641 | result = fn(r, priv); |
642 | } | |
643 | return result; | |
644 | } | |
645 | ||
2467a4fa DB |
646 | void ref_remove_duplicates(struct ref *ref_map) |
647 | { | |
648 | struct ref **posn; | |
649 | struct ref *next; | |
650 | for (; ref_map; ref_map = ref_map->next) { | |
651 | if (!ref_map->peer_ref) | |
652 | continue; | |
653 | posn = &ref_map->next; | |
654 | while (*posn) { | |
655 | if ((*posn)->peer_ref && | |
656 | !strcmp((*posn)->peer_ref->name, | |
657 | ref_map->peer_ref->name)) { | |
658 | if (strcmp((*posn)->name, ref_map->name)) | |
659 | die("%s tracks both %s and %s", | |
660 | ref_map->peer_ref->name, | |
661 | (*posn)->name, ref_map->name); | |
662 | next = (*posn)->next; | |
663 | free((*posn)->peer_ref); | |
664 | free(*posn); | |
665 | *posn = next; | |
666 | } else { | |
667 | posn = &(*posn)->next; | |
668 | } | |
669 | } | |
670 | } | |
671 | } | |
672 | ||
28b91f8a | 673 | int remote_has_url(struct remote *remote, const char *url) |
5d46c9d4 DB |
674 | { |
675 | int i; | |
28b91f8a SP |
676 | for (i = 0; i < remote->url_nr; i++) { |
677 | if (!strcmp(remote->url[i], url)) | |
5d46c9d4 DB |
678 | return 1; |
679 | } | |
680 | return 0; | |
681 | } | |
682 | ||
683 | int remote_find_tracking(struct remote *remote, struct refspec *refspec) | |
684 | { | |
b42f6927 JS |
685 | int find_src = refspec->src == NULL; |
686 | char *needle, **result; | |
5d46c9d4 | 687 | int i; |
b42f6927 JS |
688 | |
689 | if (find_src) { | |
009c5bcd | 690 | if (!refspec->dst) |
b42f6927 JS |
691 | return error("find_tracking: need either src or dst"); |
692 | needle = refspec->dst; | |
693 | result = &refspec->src; | |
694 | } else { | |
695 | needle = refspec->src; | |
696 | result = &refspec->dst; | |
697 | } | |
698 | ||
5d46c9d4 DB |
699 | for (i = 0; i < remote->fetch_refspec_nr; i++) { |
700 | struct refspec *fetch = &remote->fetch[i]; | |
b42f6927 JS |
701 | const char *key = find_src ? fetch->dst : fetch->src; |
702 | const char *value = find_src ? fetch->src : fetch->dst; | |
5d46c9d4 DB |
703 | if (!fetch->dst) |
704 | continue; | |
705 | if (fetch->pattern) { | |
b2a56276 | 706 | if (!prefixcmp(needle, key)) { |
b42f6927 JS |
707 | *result = xmalloc(strlen(value) + |
708 | strlen(needle) - | |
709 | strlen(key) + 1); | |
710 | strcpy(*result, value); | |
711 | strcpy(*result + strlen(value), | |
712 | needle + strlen(key)); | |
5d46c9d4 DB |
713 | refspec->force = fetch->force; |
714 | return 0; | |
715 | } | |
b42f6927 JS |
716 | } else if (!strcmp(needle, key)) { |
717 | *result = xstrdup(value); | |
718 | refspec->force = fetch->force; | |
719 | return 0; | |
5d46c9d4 DB |
720 | } |
721 | } | |
5d46c9d4 DB |
722 | return -1; |
723 | } | |
724 | ||
dfd255dd DB |
725 | struct ref *alloc_ref(unsigned namelen) |
726 | { | |
727 | struct ref *ret = xmalloc(sizeof(struct ref) + namelen); | |
728 | memset(ret, 0, sizeof(struct ref) + namelen); | |
729 | return ret; | |
730 | } | |
731 | ||
737922aa KK |
732 | struct ref *alloc_ref_from_str(const char* str) |
733 | { | |
734 | struct ref *ret = alloc_ref(strlen(str) + 1); | |
735 | strcpy(ret->name, str); | |
736 | return ret; | |
737 | } | |
738 | ||
4577370e | 739 | static struct ref *copy_ref(const struct ref *ref) |
d71ab174 DB |
740 | { |
741 | struct ref *ret = xmalloc(sizeof(struct ref) + strlen(ref->name) + 1); | |
742 | memcpy(ret, ref, sizeof(struct ref) + strlen(ref->name) + 1); | |
743 | ret->next = NULL; | |
744 | return ret; | |
745 | } | |
746 | ||
4577370e DB |
747 | struct ref *copy_ref_list(const struct ref *ref) |
748 | { | |
749 | struct ref *ret = NULL; | |
750 | struct ref **tail = &ret; | |
751 | while (ref) { | |
752 | *tail = copy_ref(ref); | |
753 | ref = ref->next; | |
754 | tail = &((*tail)->next); | |
755 | } | |
756 | return ret; | |
757 | } | |
758 | ||
be885d96 DB |
759 | void free_ref(struct ref *ref) |
760 | { | |
761 | if (!ref) | |
762 | return; | |
763 | free(ref->remote_status); | |
764 | free(ref->symref); | |
765 | free(ref); | |
766 | } | |
767 | ||
dfd255dd DB |
768 | void free_refs(struct ref *ref) |
769 | { | |
770 | struct ref *next; | |
771 | while (ref) { | |
772 | next = ref->next; | |
8e0f7003 | 773 | free(ref->peer_ref); |
be885d96 | 774 | free_ref(ref); |
dfd255dd DB |
775 | ref = next; |
776 | } | |
777 | } | |
778 | ||
6b62816c DB |
779 | static int count_refspec_match(const char *pattern, |
780 | struct ref *refs, | |
781 | struct ref **matched_ref) | |
782 | { | |
783 | int patlen = strlen(pattern); | |
784 | struct ref *matched_weak = NULL; | |
785 | struct ref *matched = NULL; | |
786 | int weak_match = 0; | |
787 | int match = 0; | |
788 | ||
789 | for (weak_match = match = 0; refs; refs = refs->next) { | |
790 | char *name = refs->name; | |
791 | int namelen = strlen(name); | |
6b62816c | 792 | |
ae36bdcf | 793 | if (!refname_match(pattern, name, ref_rev_parse_rules)) |
6b62816c DB |
794 | continue; |
795 | ||
796 | /* A match is "weak" if it is with refs outside | |
797 | * heads or tags, and did not specify the pattern | |
798 | * in full (e.g. "refs/remotes/origin/master") or at | |
799 | * least from the toplevel (e.g. "remotes/origin/master"); | |
800 | * otherwise "git push $URL master" would result in | |
801 | * ambiguity between remotes/origin/master and heads/master | |
802 | * at the remote site. | |
803 | */ | |
804 | if (namelen != patlen && | |
805 | patlen != namelen - 5 && | |
806 | prefixcmp(name, "refs/heads/") && | |
807 | prefixcmp(name, "refs/tags/")) { | |
808 | /* We want to catch the case where only weak | |
809 | * matches are found and there are multiple | |
810 | * matches, and where more than one strong | |
811 | * matches are found, as ambiguous. One | |
812 | * strong match with zero or more weak matches | |
813 | * are acceptable as a unique match. | |
814 | */ | |
815 | matched_weak = refs; | |
816 | weak_match++; | |
817 | } | |
818 | else { | |
819 | matched = refs; | |
820 | match++; | |
821 | } | |
822 | } | |
823 | if (!matched) { | |
824 | *matched_ref = matched_weak; | |
825 | return weak_match; | |
826 | } | |
827 | else { | |
828 | *matched_ref = matched; | |
829 | return match; | |
830 | } | |
831 | } | |
832 | ||
1d735267 | 833 | static void tail_link_ref(struct ref *ref, struct ref ***tail) |
6b62816c DB |
834 | { |
835 | **tail = ref; | |
1d735267 DB |
836 | while (ref->next) |
837 | ref = ref->next; | |
6b62816c | 838 | *tail = &ref->next; |
6b62816c DB |
839 | } |
840 | ||
841 | static struct ref *try_explicit_object_name(const char *name) | |
842 | { | |
843 | unsigned char sha1[20]; | |
844 | struct ref *ref; | |
6b62816c DB |
845 | |
846 | if (!*name) { | |
dfd255dd | 847 | ref = alloc_ref(20); |
6b62816c DB |
848 | strcpy(ref->name, "(delete)"); |
849 | hashclr(ref->new_sha1); | |
850 | return ref; | |
851 | } | |
852 | if (get_sha1(name, sha1)) | |
853 | return NULL; | |
737922aa | 854 | ref = alloc_ref_from_str(name); |
6b62816c DB |
855 | hashcpy(ref->new_sha1, sha1); |
856 | return ref; | |
857 | } | |
858 | ||
1d735267 | 859 | static struct ref *make_linked_ref(const char *name, struct ref ***tail) |
6b62816c | 860 | { |
737922aa | 861 | struct ref *ret = alloc_ref_from_str(name); |
1d735267 DB |
862 | tail_link_ref(ret, tail); |
863 | return ret; | |
163f0ee5 | 864 | } |
8558fd9e | 865 | |
f8aae120 JK |
866 | static char *guess_ref(const char *name, struct ref *peer) |
867 | { | |
868 | struct strbuf buf = STRBUF_INIT; | |
869 | unsigned char sha1[20]; | |
870 | ||
871 | const char *r = resolve_ref(peer->name, sha1, 1, NULL); | |
872 | if (!r) | |
873 | return NULL; | |
874 | ||
875 | if (!prefixcmp(r, "refs/heads/")) | |
876 | strbuf_addstr(&buf, "refs/heads/"); | |
877 | else if (!prefixcmp(r, "refs/tags/")) | |
878 | strbuf_addstr(&buf, "refs/tags/"); | |
879 | else | |
880 | return NULL; | |
881 | ||
882 | strbuf_addstr(&buf, name); | |
883 | return strbuf_detach(&buf, NULL); | |
884 | } | |
885 | ||
54a8ad92 JH |
886 | static int match_explicit(struct ref *src, struct ref *dst, |
887 | struct ref ***dst_tail, | |
9a7bbd1d | 888 | struct refspec *rs) |
6b62816c | 889 | { |
54a8ad92 | 890 | struct ref *matched_src, *matched_dst; |
8558fd9e | 891 | |
54a8ad92 | 892 | const char *dst_value = rs->dst; |
f8aae120 | 893 | char *dst_guess; |
6b62816c | 894 | |
a83619d6 | 895 | if (rs->pattern || rs->matching) |
9a7bbd1d | 896 | return 0; |
8558fd9e | 897 | |
54a8ad92 JH |
898 | matched_src = matched_dst = NULL; |
899 | switch (count_refspec_match(rs->src, src, &matched_src)) { | |
900 | case 1: | |
901 | break; | |
902 | case 0: | |
903 | /* The source could be in the get_sha1() format | |
904 | * not a reference name. :refs/other is a | |
905 | * way to delete 'other' ref at the remote end. | |
906 | */ | |
907 | matched_src = try_explicit_object_name(rs->src); | |
7dfee372 | 908 | if (!matched_src) |
9a7bbd1d | 909 | return error("src refspec %s does not match any.", rs->src); |
54a8ad92 JH |
910 | break; |
911 | default: | |
9a7bbd1d | 912 | return error("src refspec %s matches more than one.", rs->src); |
54a8ad92 | 913 | } |
3c8b7df1 | 914 | |
4491e62a | 915 | if (!dst_value) { |
9f0ea7e8 DB |
916 | unsigned char sha1[20]; |
917 | int flag; | |
918 | ||
9f0ea7e8 DB |
919 | dst_value = resolve_ref(matched_src->name, sha1, 1, &flag); |
920 | if (!dst_value || | |
921 | ((flag & REF_ISSYMREF) && | |
922 | prefixcmp(dst_value, "refs/heads/"))) | |
923 | die("%s cannot be resolved to branch.", | |
924 | matched_src->name); | |
4491e62a | 925 | } |
3c8b7df1 | 926 | |
54a8ad92 JH |
927 | switch (count_refspec_match(dst_value, dst, &matched_dst)) { |
928 | case 1: | |
929 | break; | |
930 | case 0: | |
163f0ee5 | 931 | if (!memcmp(dst_value, "refs/", 5)) |
1d735267 | 932 | matched_dst = make_linked_ref(dst_value, dst_tail); |
f8aae120 JK |
933 | else if((dst_guess = guess_ref(dst_value, matched_src))) |
934 | matched_dst = make_linked_ref(dst_guess, dst_tail); | |
3c8b7df1 | 935 | else |
f8aae120 JK |
936 | error("unable to push to unqualified destination: %s\n" |
937 | "The destination refspec neither matches an " | |
938 | "existing ref on the remote nor\n" | |
939 | "begins with refs/, and we are unable to " | |
940 | "guess a prefix based on the source ref.", | |
941 | dst_value); | |
54a8ad92 JH |
942 | break; |
943 | default: | |
3c8b7df1 | 944 | matched_dst = NULL; |
54a8ad92 JH |
945 | error("dst refspec %s matches more than one.", |
946 | dst_value); | |
947 | break; | |
948 | } | |
9a7bbd1d JK |
949 | if (!matched_dst) |
950 | return -1; | |
951 | if (matched_dst->peer_ref) | |
952 | return error("dst ref %s receives from more than one src.", | |
54a8ad92 | 953 | matched_dst->name); |
54a8ad92 JH |
954 | else { |
955 | matched_dst->peer_ref = matched_src; | |
956 | matched_dst->force = rs->force; | |
6b62816c | 957 | } |
9a7bbd1d | 958 | return 0; |
54a8ad92 JH |
959 | } |
960 | ||
961 | static int match_explicit_refs(struct ref *src, struct ref *dst, | |
962 | struct ref ***dst_tail, struct refspec *rs, | |
963 | int rs_nr) | |
964 | { | |
965 | int i, errs; | |
966 | for (i = errs = 0; i < rs_nr; i++) | |
9a7bbd1d JK |
967 | errs += match_explicit(src, dst, dst_tail, &rs[i]); |
968 | return errs; | |
6b62816c DB |
969 | } |
970 | ||
6e66bf3c AR |
971 | static const struct refspec *check_pattern_match(const struct refspec *rs, |
972 | int rs_nr, | |
973 | const struct ref *src) | |
8558fd9e DB |
974 | { |
975 | int i; | |
a83619d6 | 976 | int matching_refs = -1; |
8558fd9e | 977 | for (i = 0; i < rs_nr; i++) { |
a83619d6 PB |
978 | if (rs[i].matching && |
979 | (matching_refs == -1 || rs[i].force)) { | |
980 | matching_refs = i; | |
981 | continue; | |
982 | } | |
983 | ||
b2a56276 | 984 | if (rs[i].pattern && !prefixcmp(src->name, rs[i].src)) |
6e66bf3c | 985 | return rs + i; |
8558fd9e | 986 | } |
a83619d6 PB |
987 | if (matching_refs != -1) |
988 | return rs + matching_refs; | |
989 | else | |
990 | return NULL; | |
8558fd9e DB |
991 | } |
992 | ||
54a8ad92 JH |
993 | /* |
994 | * Note. This is used only by "push"; refspec matching rules for | |
995 | * push and fetch are subtly different, so do not try to reuse it | |
996 | * without thinking. | |
997 | */ | |
6b62816c | 998 | int match_refs(struct ref *src, struct ref *dst, struct ref ***dst_tail, |
28b9d6e5 | 999 | int nr_refspec, const char **refspec, int flags) |
6b62816c | 1000 | { |
a83619d6 | 1001 | struct refspec *rs; |
28b9d6e5 AW |
1002 | int send_all = flags & MATCH_REFS_ALL; |
1003 | int send_mirror = flags & MATCH_REFS_MIRROR; | |
a83619d6 | 1004 | static const char *default_refspec[] = { ":", 0 }; |
6b62816c | 1005 | |
a83619d6 PB |
1006 | if (!nr_refspec) { |
1007 | nr_refspec = 1; | |
1008 | refspec = default_refspec; | |
1009 | } | |
1010 | rs = parse_push_refspec(nr_refspec, (const char **) refspec); | |
8558fd9e DB |
1011 | if (match_explicit_refs(src, dst, dst_tail, rs, nr_refspec)) |
1012 | return -1; | |
6b62816c DB |
1013 | |
1014 | /* pick the remainder */ | |
1015 | for ( ; src; src = src->next) { | |
1016 | struct ref *dst_peer; | |
6e66bf3c AR |
1017 | const struct refspec *pat = NULL; |
1018 | char *dst_name; | |
6b62816c DB |
1019 | if (src->peer_ref) |
1020 | continue; | |
a83619d6 PB |
1021 | |
1022 | pat = check_pattern_match(rs, nr_refspec, src); | |
1023 | if (!pat) | |
1024 | continue; | |
1025 | ||
1026 | if (pat->matching) { | |
098e711e JH |
1027 | /* |
1028 | * "matching refs"; traditionally we pushed everything | |
1029 | * including refs outside refs/heads/ hierarchy, but | |
1030 | * that does not make much sense these days. | |
1031 | */ | |
a83619d6 PB |
1032 | if (!send_mirror && prefixcmp(src->name, "refs/heads/")) |
1033 | continue; | |
1034 | dst_name = xstrdup(src->name); | |
8558fd9e | 1035 | |
a83619d6 | 1036 | } else { |
efd8f793 DB |
1037 | const char *dst_side = pat->dst ? pat->dst : pat->src; |
1038 | dst_name = xmalloc(strlen(dst_side) + | |
6e66bf3c AR |
1039 | strlen(src->name) - |
1040 | strlen(pat->src) + 2); | |
efd8f793 | 1041 | strcpy(dst_name, dst_side); |
6e66bf3c | 1042 | strcat(dst_name, src->name + strlen(pat->src)); |
a83619d6 | 1043 | } |
6e66bf3c | 1044 | dst_peer = find_ref_by_name(dst, dst_name); |
a83619d6 PB |
1045 | if (dst_peer) { |
1046 | if (dst_peer->peer_ref) | |
1047 | /* We're already sending something to this ref. */ | |
1048 | goto free_name; | |
1049 | ||
1050 | } else { | |
1051 | if (pat->matching && !(send_all || send_mirror)) | |
1052 | /* | |
1053 | * Remote doesn't have it, and we have no | |
1054 | * explicit pattern, and we don't have | |
1055 | * --all nor --mirror. | |
1056 | */ | |
1057 | goto free_name; | |
28b9d6e5 | 1058 | |
6b62816c | 1059 | /* Create a new one and link it */ |
1d735267 | 1060 | dst_peer = make_linked_ref(dst_name, dst_tail); |
6b62816c | 1061 | hashcpy(dst_peer->new_sha1, src->new_sha1); |
6b62816c DB |
1062 | } |
1063 | dst_peer->peer_ref = src; | |
a83619d6 | 1064 | dst_peer->force = pat->force; |
6e66bf3c AR |
1065 | free_name: |
1066 | free(dst_name); | |
6b62816c DB |
1067 | } |
1068 | return 0; | |
1069 | } | |
cf818348 DB |
1070 | |
1071 | struct branch *branch_get(const char *name) | |
1072 | { | |
1073 | struct branch *ret; | |
1074 | ||
1075 | read_config(); | |
1076 | if (!name || !*name || !strcmp(name, "HEAD")) | |
1077 | ret = current_branch; | |
1078 | else | |
1079 | ret = make_branch(name, 0); | |
1080 | if (ret && ret->remote_name) { | |
1081 | ret->remote = remote_get(ret->remote_name); | |
1082 | if (ret->merge_nr) { | |
1083 | int i; | |
1084 | ret->merge = xcalloc(sizeof(*ret->merge), | |
1085 | ret->merge_nr); | |
1086 | for (i = 0; i < ret->merge_nr; i++) { | |
1087 | ret->merge[i] = xcalloc(1, sizeof(**ret->merge)); | |
1088 | ret->merge[i]->src = xstrdup(ret->merge_name[i]); | |
1089 | remote_find_tracking(ret->remote, | |
1090 | ret->merge[i]); | |
1091 | } | |
1092 | } | |
1093 | } | |
1094 | return ret; | |
1095 | } | |
1096 | ||
1097 | int branch_has_merge_config(struct branch *branch) | |
1098 | { | |
1099 | return branch && !!branch->merge; | |
1100 | } | |
1101 | ||
85682c19 SP |
1102 | int branch_merge_matches(struct branch *branch, |
1103 | int i, | |
1104 | const char *refname) | |
cf818348 | 1105 | { |
85682c19 | 1106 | if (!branch || i < 0 || i >= branch->merge_nr) |
cf818348 | 1107 | return 0; |
605b4978 | 1108 | return refname_match(branch->merge[i]->src, refname, ref_fetch_rules); |
cf818348 | 1109 | } |
d71ab174 | 1110 | |
4577370e | 1111 | static struct ref *get_expanded_map(const struct ref *remote_refs, |
d71ab174 DB |
1112 | const struct refspec *refspec) |
1113 | { | |
4577370e | 1114 | const struct ref *ref; |
d71ab174 DB |
1115 | struct ref *ret = NULL; |
1116 | struct ref **tail = &ret; | |
1117 | ||
1118 | int remote_prefix_len = strlen(refspec->src); | |
1119 | int local_prefix_len = strlen(refspec->dst); | |
1120 | ||
1121 | for (ref = remote_refs; ref; ref = ref->next) { | |
1122 | if (strchr(ref->name, '^')) | |
1123 | continue; /* a dereference item */ | |
1124 | if (!prefixcmp(ref->name, refspec->src)) { | |
4577370e | 1125 | const char *match; |
d71ab174 DB |
1126 | struct ref *cpy = copy_ref(ref); |
1127 | match = ref->name + remote_prefix_len; | |
1128 | ||
1129 | cpy->peer_ref = alloc_ref(local_prefix_len + | |
1130 | strlen(match) + 1); | |
1131 | sprintf(cpy->peer_ref->name, "%s%s", | |
1132 | refspec->dst, match); | |
1133 | if (refspec->force) | |
1134 | cpy->peer_ref->force = 1; | |
1135 | *tail = cpy; | |
1136 | tail = &cpy->next; | |
1137 | } | |
1138 | } | |
1139 | ||
1140 | return ret; | |
1141 | } | |
1142 | ||
4577370e | 1143 | static const struct ref *find_ref_by_name_abbrev(const struct ref *refs, const char *name) |
d71ab174 | 1144 | { |
4577370e | 1145 | const struct ref *ref; |
d71ab174 | 1146 | for (ref = refs; ref; ref = ref->next) { |
605b4978 | 1147 | if (refname_match(name, ref->name, ref_fetch_rules)) |
d71ab174 DB |
1148 | return ref; |
1149 | } | |
1150 | return NULL; | |
1151 | } | |
1152 | ||
4577370e | 1153 | struct ref *get_remote_ref(const struct ref *remote_refs, const char *name) |
d71ab174 | 1154 | { |
4577370e | 1155 | const struct ref *ref = find_ref_by_name_abbrev(remote_refs, name); |
d71ab174 DB |
1156 | |
1157 | if (!ref) | |
9ad7c5ae | 1158 | return NULL; |
d71ab174 DB |
1159 | |
1160 | return copy_ref(ref); | |
1161 | } | |
1162 | ||
1163 | static struct ref *get_local_ref(const char *name) | |
1164 | { | |
1165 | struct ref *ret; | |
1166 | if (!name) | |
1167 | return NULL; | |
1168 | ||
1169 | if (!prefixcmp(name, "refs/")) { | |
737922aa | 1170 | return alloc_ref_from_str(name); |
d71ab174 DB |
1171 | } |
1172 | ||
1173 | if (!prefixcmp(name, "heads/") || | |
1174 | !prefixcmp(name, "tags/") || | |
1175 | !prefixcmp(name, "remotes/")) { | |
1176 | ret = alloc_ref(strlen(name) + 6); | |
1177 | sprintf(ret->name, "refs/%s", name); | |
1178 | return ret; | |
1179 | } | |
1180 | ||
1181 | ret = alloc_ref(strlen(name) + 12); | |
1182 | sprintf(ret->name, "refs/heads/%s", name); | |
1183 | return ret; | |
1184 | } | |
1185 | ||
4577370e | 1186 | int get_fetch_map(const struct ref *remote_refs, |
d71ab174 | 1187 | const struct refspec *refspec, |
9ad7c5ae JH |
1188 | struct ref ***tail, |
1189 | int missing_ok) | |
d71ab174 | 1190 | { |
ef00d150 | 1191 | struct ref *ref_map, **rmp; |
d71ab174 DB |
1192 | |
1193 | if (refspec->pattern) { | |
1194 | ref_map = get_expanded_map(remote_refs, refspec); | |
1195 | } else { | |
9ad7c5ae JH |
1196 | const char *name = refspec->src[0] ? refspec->src : "HEAD"; |
1197 | ||
1198 | ref_map = get_remote_ref(remote_refs, name); | |
1199 | if (!missing_ok && !ref_map) | |
1200 | die("Couldn't find remote ref %s", name); | |
1201 | if (ref_map) { | |
1202 | ref_map->peer_ref = get_local_ref(refspec->dst); | |
1203 | if (ref_map->peer_ref && refspec->force) | |
1204 | ref_map->peer_ref->force = 1; | |
1205 | } | |
d71ab174 DB |
1206 | } |
1207 | ||
ef00d150 DB |
1208 | for (rmp = &ref_map; *rmp; ) { |
1209 | if ((*rmp)->peer_ref) { | |
1210 | int st = check_ref_format((*rmp)->peer_ref->name + 5); | |
1211 | if (st && st != CHECK_REF_FORMAT_ONELEVEL) { | |
1212 | struct ref *ignore = *rmp; | |
1213 | error("* Ignoring funny ref '%s' locally", | |
1214 | (*rmp)->peer_ref->name); | |
1215 | *rmp = (*rmp)->next; | |
1216 | free(ignore->peer_ref); | |
1217 | free(ignore); | |
1218 | continue; | |
1219 | } | |
1220 | } | |
1221 | rmp = &((*rmp)->next); | |
d71ab174 DB |
1222 | } |
1223 | ||
8f70a765 AR |
1224 | if (ref_map) |
1225 | tail_link_ref(ref_map, tail); | |
d71ab174 DB |
1226 | |
1227 | return 0; | |
1228 | } | |
be885d96 DB |
1229 | |
1230 | int resolve_remote_symref(struct ref *ref, struct ref *list) | |
1231 | { | |
1232 | if (!ref->symref) | |
1233 | return 0; | |
1234 | for (; list; list = list->next) | |
1235 | if (!strcmp(ref->symref, list->name)) { | |
1236 | hashcpy(ref->old_sha1, list->old_sha1); | |
1237 | return 0; | |
1238 | } | |
1239 | return 1; | |
1240 | } |