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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 | ||
844112ca JH |
5 | struct counted_string { |
6 | size_t len; | |
7 | const char *s; | |
8 | }; | |
55029ae4 DB |
9 | struct rewrite { |
10 | const char *base; | |
844112ca JH |
11 | size_t baselen; |
12 | struct counted_string *instead_of; | |
55029ae4 DB |
13 | int instead_of_nr; |
14 | int instead_of_alloc; | |
15 | }; | |
16 | ||
5751f490 | 17 | static struct remote **remotes; |
2d31347b DB |
18 | static int remotes_alloc; |
19 | static int remotes_nr; | |
5751f490 | 20 | |
cf818348 | 21 | static struct branch **branches; |
2d31347b DB |
22 | static int branches_alloc; |
23 | static int branches_nr; | |
cf818348 DB |
24 | |
25 | static struct branch *current_branch; | |
26 | static const char *default_remote_name; | |
27 | ||
55029ae4 DB |
28 | static struct rewrite **rewrite; |
29 | static int rewrite_alloc; | |
30 | static int rewrite_nr; | |
31 | ||
5751f490 DB |
32 | #define BUF_SIZE (2048) |
33 | static char buffer[BUF_SIZE]; | |
34 | ||
55029ae4 DB |
35 | static const char *alias_url(const char *url) |
36 | { | |
37 | int i, j; | |
844112ca JH |
38 | char *ret; |
39 | struct counted_string *longest; | |
40 | int longest_i; | |
41 | ||
42 | longest = NULL; | |
43 | longest_i = -1; | |
55029ae4 DB |
44 | for (i = 0; i < rewrite_nr; i++) { |
45 | if (!rewrite[i]) | |
46 | continue; | |
47 | for (j = 0; j < rewrite[i]->instead_of_nr; j++) { | |
844112ca JH |
48 | if (!prefixcmp(url, rewrite[i]->instead_of[j].s) && |
49 | (!longest || | |
50 | longest->len < rewrite[i]->instead_of[j].len)) { | |
51 | longest = &(rewrite[i]->instead_of[j]); | |
52 | longest_i = i; | |
55029ae4 DB |
53 | } |
54 | } | |
55 | } | |
844112ca JH |
56 | if (!longest) |
57 | return url; | |
58 | ||
59 | ret = malloc(rewrite[longest_i]->baselen + | |
60 | (strlen(url) - longest->len) + 1); | |
61 | strcpy(ret, rewrite[longest_i]->base); | |
62 | strcpy(ret + rewrite[longest_i]->baselen, url + longest->len); | |
63 | return ret; | |
55029ae4 DB |
64 | } |
65 | ||
5751f490 DB |
66 | static void add_push_refspec(struct remote *remote, const char *ref) |
67 | { | |
2d31347b DB |
68 | ALLOC_GROW(remote->push_refspec, |
69 | remote->push_refspec_nr + 1, | |
70 | remote->push_refspec_alloc); | |
71 | remote->push_refspec[remote->push_refspec_nr++] = ref; | |
5751f490 DB |
72 | } |
73 | ||
5d46c9d4 DB |
74 | static void add_fetch_refspec(struct remote *remote, const char *ref) |
75 | { | |
2d31347b DB |
76 | ALLOC_GROW(remote->fetch_refspec, |
77 | remote->fetch_refspec_nr + 1, | |
78 | remote->fetch_refspec_alloc); | |
79 | remote->fetch_refspec[remote->fetch_refspec_nr++] = ref; | |
5d46c9d4 DB |
80 | } |
81 | ||
28b91f8a | 82 | static void add_url(struct remote *remote, const char *url) |
5751f490 | 83 | { |
2d31347b DB |
84 | ALLOC_GROW(remote->url, remote->url_nr + 1, remote->url_alloc); |
85 | remote->url[remote->url_nr++] = url; | |
5751f490 DB |
86 | } |
87 | ||
55029ae4 DB |
88 | static void add_url_alias(struct remote *remote, const char *url) |
89 | { | |
90 | add_url(remote, alias_url(url)); | |
91 | } | |
92 | ||
5751f490 DB |
93 | static struct remote *make_remote(const char *name, int len) |
94 | { | |
2d31347b DB |
95 | struct remote *ret; |
96 | int i; | |
5751f490 | 97 | |
2d31347b DB |
98 | for (i = 0; i < remotes_nr; i++) { |
99 | if (len ? (!strncmp(name, remotes[i]->name, len) && | |
100 | !remotes[i]->name[len]) : | |
101 | !strcmp(name, remotes[i]->name)) | |
102 | return remotes[i]; | |
5751f490 DB |
103 | } |
104 | ||
2d31347b DB |
105 | ret = xcalloc(1, sizeof(struct remote)); |
106 | ALLOC_GROW(remotes, remotes_nr + 1, remotes_alloc); | |
107 | remotes[remotes_nr++] = ret; | |
5751f490 | 108 | if (len) |
2d31347b | 109 | ret->name = xstrndup(name, len); |
5751f490 | 110 | else |
2d31347b DB |
111 | ret->name = xstrdup(name); |
112 | return ret; | |
5751f490 DB |
113 | } |
114 | ||
cf818348 DB |
115 | static void add_merge(struct branch *branch, const char *name) |
116 | { | |
2d31347b DB |
117 | ALLOC_GROW(branch->merge_name, branch->merge_nr + 1, |
118 | branch->merge_alloc); | |
119 | branch->merge_name[branch->merge_nr++] = name; | |
cf818348 DB |
120 | } |
121 | ||
122 | static struct branch *make_branch(const char *name, int len) | |
123 | { | |
2d31347b DB |
124 | struct branch *ret; |
125 | int i; | |
cf818348 DB |
126 | char *refname; |
127 | ||
2d31347b DB |
128 | for (i = 0; i < branches_nr; i++) { |
129 | if (len ? (!strncmp(name, branches[i]->name, len) && | |
130 | !branches[i]->name[len]) : | |
131 | !strcmp(name, branches[i]->name)) | |
132 | return branches[i]; | |
cf818348 DB |
133 | } |
134 | ||
2d31347b DB |
135 | ALLOC_GROW(branches, branches_nr + 1, branches_alloc); |
136 | ret = xcalloc(1, sizeof(struct branch)); | |
137 | branches[branches_nr++] = ret; | |
cf818348 | 138 | if (len) |
2d31347b | 139 | ret->name = xstrndup(name, len); |
cf818348 | 140 | else |
2d31347b | 141 | ret->name = xstrdup(name); |
cf818348 DB |
142 | refname = malloc(strlen(name) + strlen("refs/heads/") + 1); |
143 | strcpy(refname, "refs/heads/"); | |
2d31347b DB |
144 | strcpy(refname + strlen("refs/heads/"), ret->name); |
145 | ret->refname = refname; | |
cf818348 | 146 | |
2d31347b | 147 | return ret; |
cf818348 DB |
148 | } |
149 | ||
55029ae4 DB |
150 | static struct rewrite *make_rewrite(const char *base, int len) |
151 | { | |
152 | struct rewrite *ret; | |
153 | int i; | |
154 | ||
155 | for (i = 0; i < rewrite_nr; i++) { | |
844112ca JH |
156 | if (len |
157 | ? (len == rewrite[i]->baselen && | |
158 | !strncmp(base, rewrite[i]->base, len)) | |
159 | : !strcmp(base, rewrite[i]->base)) | |
55029ae4 DB |
160 | return rewrite[i]; |
161 | } | |
162 | ||
163 | ALLOC_GROW(rewrite, rewrite_nr + 1, rewrite_alloc); | |
164 | ret = xcalloc(1, sizeof(struct rewrite)); | |
165 | rewrite[rewrite_nr++] = ret; | |
844112ca | 166 | if (len) { |
55029ae4 | 167 | ret->base = xstrndup(base, len); |
844112ca JH |
168 | ret->baselen = len; |
169 | } | |
170 | else { | |
55029ae4 | 171 | ret->base = xstrdup(base); |
844112ca JH |
172 | ret->baselen = strlen(base); |
173 | } | |
55029ae4 DB |
174 | return ret; |
175 | } | |
176 | ||
177 | static void add_instead_of(struct rewrite *rewrite, const char *instead_of) | |
178 | { | |
179 | ALLOC_GROW(rewrite->instead_of, rewrite->instead_of_nr + 1, rewrite->instead_of_alloc); | |
844112ca JH |
180 | rewrite->instead_of[rewrite->instead_of_nr].s = instead_of; |
181 | rewrite->instead_of[rewrite->instead_of_nr].len = strlen(instead_of); | |
182 | rewrite->instead_of_nr++; | |
55029ae4 DB |
183 | } |
184 | ||
5751f490 DB |
185 | static void read_remotes_file(struct remote *remote) |
186 | { | |
187 | FILE *f = fopen(git_path("remotes/%s", remote->name), "r"); | |
188 | ||
189 | if (!f) | |
190 | return; | |
191 | while (fgets(buffer, BUF_SIZE, f)) { | |
192 | int value_list; | |
193 | char *s, *p; | |
194 | ||
195 | if (!prefixcmp(buffer, "URL:")) { | |
196 | value_list = 0; | |
197 | s = buffer + 4; | |
198 | } else if (!prefixcmp(buffer, "Push:")) { | |
199 | value_list = 1; | |
200 | s = buffer + 5; | |
5d46c9d4 DB |
201 | } else if (!prefixcmp(buffer, "Pull:")) { |
202 | value_list = 2; | |
203 | s = buffer + 5; | |
5751f490 DB |
204 | } else |
205 | continue; | |
206 | ||
207 | while (isspace(*s)) | |
208 | s++; | |
209 | if (!*s) | |
210 | continue; | |
211 | ||
212 | p = s + strlen(s); | |
213 | while (isspace(p[-1])) | |
214 | *--p = 0; | |
215 | ||
216 | switch (value_list) { | |
217 | case 0: | |
55029ae4 | 218 | add_url_alias(remote, xstrdup(s)); |
5751f490 DB |
219 | break; |
220 | case 1: | |
221 | add_push_refspec(remote, xstrdup(s)); | |
222 | break; | |
5d46c9d4 DB |
223 | case 2: |
224 | add_fetch_refspec(remote, xstrdup(s)); | |
225 | break; | |
5751f490 DB |
226 | } |
227 | } | |
228 | fclose(f); | |
229 | } | |
230 | ||
231 | static void read_branches_file(struct remote *remote) | |
232 | { | |
233 | const char *slash = strchr(remote->name, '/'); | |
cf818348 | 234 | char *frag; |
472fa4cd | 235 | struct strbuf branch; |
5751f490 DB |
236 | int n = slash ? slash - remote->name : 1000; |
237 | FILE *f = fopen(git_path("branches/%.*s", n, remote->name), "r"); | |
238 | char *s, *p; | |
239 | int len; | |
240 | ||
241 | if (!f) | |
242 | return; | |
243 | s = fgets(buffer, BUF_SIZE, f); | |
244 | fclose(f); | |
245 | if (!s) | |
246 | return; | |
247 | while (isspace(*s)) | |
248 | s++; | |
249 | if (!*s) | |
250 | return; | |
251 | p = s + strlen(s); | |
252 | while (isspace(p[-1])) | |
253 | *--p = 0; | |
254 | len = p - s; | |
255 | if (slash) | |
256 | len += strlen(slash); | |
257 | p = xmalloc(len + 1); | |
258 | strcpy(p, s); | |
259 | if (slash) | |
260 | strcat(p, slash); | |
472fa4cd DB |
261 | |
262 | /* | |
263 | * With "slash", e.g. "git fetch jgarzik/netdev-2.6" when | |
264 | * reading from $GIT_DIR/branches/jgarzik fetches "HEAD" from | |
265 | * the partial URL obtained from the branches file plus | |
266 | * "/netdev-2.6" and does not store it in any tracking ref. | |
267 | * #branch specifier in the file is ignored. | |
268 | * | |
269 | * Otherwise, the branches file would have URL and optionally | |
270 | * #branch specified. The "master" (or specified) branch is | |
271 | * fetched and stored in the local branch of the same name. | |
272 | */ | |
273 | strbuf_init(&branch, 0); | |
cf818348 DB |
274 | frag = strchr(p, '#'); |
275 | if (frag) { | |
276 | *(frag++) = '\0'; | |
472fa4cd DB |
277 | strbuf_addf(&branch, "refs/heads/%s", frag); |
278 | } else | |
279 | strbuf_addstr(&branch, "refs/heads/master"); | |
280 | if (!slash) { | |
281 | strbuf_addf(&branch, ":refs/heads/%s", remote->name); | |
cf818348 | 282 | } else { |
472fa4cd DB |
283 | strbuf_reset(&branch); |
284 | strbuf_addstr(&branch, "HEAD:"); | |
cf818348 | 285 | } |
55029ae4 | 286 | add_url_alias(remote, p); |
472fa4cd | 287 | add_fetch_refspec(remote, strbuf_detach(&branch, 0)); |
d71ab174 | 288 | remote->fetch_tags = 1; /* always auto-follow */ |
5751f490 DB |
289 | } |
290 | ||
5751f490 DB |
291 | static int handle_config(const char *key, const char *value) |
292 | { | |
293 | const char *name; | |
294 | const char *subkey; | |
295 | struct remote *remote; | |
cf818348 DB |
296 | struct branch *branch; |
297 | if (!prefixcmp(key, "branch.")) { | |
298 | name = key + 7; | |
299 | subkey = strrchr(name, '.'); | |
cf818348 DB |
300 | if (!subkey) |
301 | return 0; | |
896c0535 | 302 | branch = make_branch(name, subkey - name); |
cf818348 | 303 | if (!strcmp(subkey, ".remote")) { |
d2370cc2 JH |
304 | if (!value) |
305 | return config_error_nonbool(key); | |
cf818348 DB |
306 | branch->remote_name = xstrdup(value); |
307 | if (branch == current_branch) | |
308 | default_remote_name = branch->remote_name; | |
d2370cc2 JH |
309 | } else if (!strcmp(subkey, ".merge")) { |
310 | if (!value) | |
311 | return config_error_nonbool(key); | |
cf818348 | 312 | add_merge(branch, xstrdup(value)); |
d2370cc2 | 313 | } |
cf818348 | 314 | return 0; |
5751f490 | 315 | } |
55029ae4 DB |
316 | if (!prefixcmp(key, "url.")) { |
317 | struct rewrite *rewrite; | |
60e3aba9 | 318 | name = key + 4; |
55029ae4 DB |
319 | subkey = strrchr(name, '.'); |
320 | if (!subkey) | |
321 | return 0; | |
322 | rewrite = make_rewrite(name, subkey - name); | |
323 | if (!strcmp(subkey, ".insteadof")) { | |
324 | if (!value) | |
325 | return config_error_nonbool(key); | |
326 | add_instead_of(rewrite, xstrdup(value)); | |
327 | } | |
328 | } | |
5751f490 DB |
329 | if (prefixcmp(key, "remote.")) |
330 | return 0; | |
331 | name = key + 7; | |
332 | subkey = strrchr(name, '.'); | |
333 | if (!subkey) | |
334 | return error("Config with no key for remote %s", name); | |
335 | if (*subkey == '/') { | |
336 | warning("Config remote shorthand cannot begin with '/': %s", name); | |
337 | return 0; | |
338 | } | |
339 | remote = make_remote(name, subkey - name); | |
84bb2dfd PB |
340 | if (!strcmp(subkey, ".mirror")) |
341 | remote->mirror = git_config_bool(key, value); | |
342 | else if (!strcmp(subkey, ".skipdefaultupdate")) | |
343 | remote->skip_default_update = git_config_bool(key, value); | |
344 | ||
345 | else if (!strcmp(subkey, ".url")) { | |
346 | const char *v; | |
347 | if (git_config_string(&v, key, value)) | |
348 | return -1; | |
349 | add_url(remote, v); | |
5751f490 | 350 | } else if (!strcmp(subkey, ".push")) { |
84bb2dfd PB |
351 | const char *v; |
352 | if (git_config_string(&v, key, value)) | |
353 | return -1; | |
354 | add_push_refspec(remote, v); | |
5d46c9d4 | 355 | } else if (!strcmp(subkey, ".fetch")) { |
84bb2dfd PB |
356 | const char *v; |
357 | if (git_config_string(&v, key, value)) | |
358 | return -1; | |
359 | add_fetch_refspec(remote, v); | |
5751f490 | 360 | } else if (!strcmp(subkey, ".receivepack")) { |
84bb2dfd PB |
361 | const char *v; |
362 | if (git_config_string(&v, key, value)) | |
363 | return -1; | |
5751f490 | 364 | if (!remote->receivepack) |
84bb2dfd | 365 | remote->receivepack = v; |
5751f490 DB |
366 | else |
367 | error("more than one receivepack given, using the first"); | |
0012ba21 | 368 | } else if (!strcmp(subkey, ".uploadpack")) { |
84bb2dfd PB |
369 | const char *v; |
370 | if (git_config_string(&v, key, value)) | |
371 | return -1; | |
0012ba21 | 372 | if (!remote->uploadpack) |
84bb2dfd | 373 | remote->uploadpack = v; |
0012ba21 DB |
374 | else |
375 | error("more than one uploadpack given, using the first"); | |
d71ab174 DB |
376 | } else if (!strcmp(subkey, ".tagopt")) { |
377 | if (!strcmp(value, "--no-tags")) | |
378 | remote->fetch_tags = -1; | |
14c98218 | 379 | } else if (!strcmp(subkey, ".proxy")) { |
84bb2dfd PB |
380 | return git_config_string((const char **)&remote->http_proxy, |
381 | key, value); | |
382 | } | |
5751f490 DB |
383 | return 0; |
384 | } | |
385 | ||
55029ae4 DB |
386 | static void alias_all_urls(void) |
387 | { | |
388 | int i, j; | |
389 | for (i = 0; i < remotes_nr; i++) { | |
390 | if (!remotes[i]) | |
391 | continue; | |
392 | for (j = 0; j < remotes[i]->url_nr; j++) { | |
393 | remotes[i]->url[j] = alias_url(remotes[i]->url[j]); | |
394 | } | |
395 | } | |
396 | } | |
397 | ||
5751f490 DB |
398 | static void read_config(void) |
399 | { | |
400 | unsigned char sha1[20]; | |
401 | const char *head_ref; | |
402 | int flag; | |
403 | if (default_remote_name) // did this already | |
404 | return; | |
405 | default_remote_name = xstrdup("origin"); | |
406 | current_branch = NULL; | |
407 | head_ref = resolve_ref("HEAD", sha1, 0, &flag); | |
408 | if (head_ref && (flag & REF_ISSYMREF) && | |
409 | !prefixcmp(head_ref, "refs/heads/")) { | |
cf818348 DB |
410 | current_branch = |
411 | make_branch(head_ref + strlen("refs/heads/"), 0); | |
5751f490 DB |
412 | } |
413 | git_config(handle_config); | |
55029ae4 | 414 | alias_all_urls(); |
5751f490 DB |
415 | } |
416 | ||
24b6177e | 417 | static struct refspec *parse_refspec_internal(int nr_refspec, const char **refspec, int fetch, int verify) |
6b62816c DB |
418 | { |
419 | int i; | |
ef00d150 | 420 | int st; |
6b62816c | 421 | struct refspec *rs = xcalloc(sizeof(*rs), nr_refspec); |
46220ca1 | 422 | |
6b62816c | 423 | for (i = 0; i < nr_refspec; i++) { |
46220ca1 JH |
424 | size_t llen, rlen; |
425 | int is_glob; | |
426 | const char *lhs, *rhs; | |
427 | ||
428 | llen = rlen = is_glob = 0; | |
429 | ||
430 | lhs = refspec[i]; | |
431 | if (*lhs == '+') { | |
6b62816c | 432 | rs[i].force = 1; |
46220ca1 | 433 | lhs++; |
6b62816c | 434 | } |
46220ca1 JH |
435 | |
436 | rhs = strrchr(lhs, ':'); | |
437 | if (rhs) { | |
438 | rhs++; | |
439 | rlen = strlen(rhs); | |
440 | is_glob = (2 <= rlen && !strcmp(rhs + rlen - 2, "/*")); | |
7d19da46 JH |
441 | if (is_glob) |
442 | rlen -= 2; | |
443 | rs[i].dst = xstrndup(rhs, rlen); | |
6b62816c | 444 | } |
ef00d150 | 445 | |
46220ca1 | 446 | llen = (rhs ? (rhs - lhs - 1) : strlen(lhs)); |
7d19da46 JH |
447 | if (2 <= llen && !memcmp(lhs + llen - 2, "/*", 2)) { |
448 | if ((rhs && !is_glob) || (!rhs && fetch)) | |
449 | goto invalid; | |
450 | is_glob = 1; | |
46220ca1 | 451 | llen -= 2; |
7d19da46 JH |
452 | } else if (rhs && is_glob) { |
453 | goto invalid; | |
ef00d150 | 454 | } |
7d19da46 | 455 | |
46220ca1 JH |
456 | rs[i].pattern = is_glob; |
457 | rs[i].src = xstrndup(lhs, llen); | |
458 | ||
459 | if (fetch) { | |
460 | /* | |
461 | * LHS | |
462 | * - empty is allowed; it means HEAD. | |
463 | * - otherwise it must be a valid looking ref. | |
464 | */ | |
465 | if (!*rs[i].src) | |
466 | ; /* empty is ok */ | |
467 | else { | |
468 | st = check_ref_format(rs[i].src); | |
469 | if (st && st != CHECK_REF_FORMAT_ONELEVEL) | |
470 | goto invalid; | |
471 | } | |
472 | /* | |
473 | * RHS | |
7d19da46 | 474 | * - missing is ok, and is same as empty. |
46220ca1 JH |
475 | * - empty is ok; it means not to store. |
476 | * - otherwise it must be a valid looking ref. | |
477 | */ | |
478 | if (!rs[i].dst) { | |
479 | ; /* ok */ | |
480 | } else if (!*rs[i].dst) { | |
481 | ; /* ok */ | |
482 | } else { | |
483 | st = check_ref_format(rs[i].dst); | |
484 | if (st && st != CHECK_REF_FORMAT_ONELEVEL) | |
485 | goto invalid; | |
486 | } | |
487 | } else { | |
488 | /* | |
489 | * LHS | |
490 | * - empty is allowed; it means delete. | |
491 | * - when wildcarded, it must be a valid looking ref. | |
492 | * - otherwise, it must be an extended SHA-1, but | |
493 | * there is no existing way to validate this. | |
494 | */ | |
495 | if (!*rs[i].src) | |
496 | ; /* empty is ok */ | |
497 | else if (is_glob) { | |
498 | st = check_ref_format(rs[i].src); | |
499 | if (st && st != CHECK_REF_FORMAT_ONELEVEL) | |
500 | goto invalid; | |
501 | } | |
502 | else | |
503 | ; /* anything goes, for now */ | |
504 | /* | |
505 | * RHS | |
506 | * - missing is allowed, but LHS then must be a | |
507 | * valid looking ref. | |
508 | * - empty is not allowed. | |
509 | * - otherwise it must be a valid looking ref. | |
510 | */ | |
511 | if (!rs[i].dst) { | |
512 | st = check_ref_format(rs[i].src); | |
513 | if (st && st != CHECK_REF_FORMAT_ONELEVEL) | |
514 | goto invalid; | |
515 | } else if (!*rs[i].dst) { | |
516 | goto invalid; | |
517 | } else { | |
518 | st = check_ref_format(rs[i].dst); | |
519 | if (st && st != CHECK_REF_FORMAT_ONELEVEL) | |
520 | goto invalid; | |
521 | } | |
ef00d150 | 522 | } |
6b62816c DB |
523 | } |
524 | return rs; | |
46220ca1 JH |
525 | |
526 | invalid: | |
24b6177e JF |
527 | if (verify) { |
528 | free(rs); | |
529 | return NULL; | |
530 | } | |
46220ca1 JH |
531 | die("Invalid refspec '%s'", refspec[i]); |
532 | } | |
533 | ||
24b6177e JF |
534 | int valid_fetch_refspec(const char *fetch_refspec_str) |
535 | { | |
536 | const char *fetch_refspec[] = { fetch_refspec_str }; | |
537 | struct refspec *refspec; | |
538 | ||
539 | refspec = parse_refspec_internal(1, fetch_refspec, 1, 1); | |
540 | if (refspec) | |
541 | free(refspec); | |
542 | return !!refspec; | |
543 | } | |
544 | ||
46220ca1 JH |
545 | struct refspec *parse_fetch_refspec(int nr_refspec, const char **refspec) |
546 | { | |
24b6177e | 547 | return parse_refspec_internal(nr_refspec, refspec, 1, 0); |
46220ca1 JH |
548 | } |
549 | ||
550 | struct refspec *parse_push_refspec(int nr_refspec, const char **refspec) | |
551 | { | |
24b6177e | 552 | return parse_refspec_internal(nr_refspec, refspec, 0, 0); |
6b62816c DB |
553 | } |
554 | ||
df93e33c DB |
555 | static int valid_remote_nick(const char *name) |
556 | { | |
557 | if (!name[0] || /* not empty */ | |
558 | (name[0] == '.' && /* not "." */ | |
559 | (!name[1] || /* not ".." */ | |
560 | (name[1] == '.' && !name[2])))) | |
561 | return 0; | |
562 | return !strchr(name, '/'); /* no slash */ | |
563 | } | |
564 | ||
5751f490 DB |
565 | struct remote *remote_get(const char *name) |
566 | { | |
567 | struct remote *ret; | |
568 | ||
569 | read_config(); | |
570 | if (!name) | |
571 | name = default_remote_name; | |
572 | ret = make_remote(name, 0); | |
df93e33c | 573 | if (valid_remote_nick(name)) { |
28b91f8a | 574 | if (!ret->url) |
5751f490 | 575 | read_remotes_file(ret); |
28b91f8a | 576 | if (!ret->url) |
5751f490 DB |
577 | read_branches_file(ret); |
578 | } | |
28b91f8a | 579 | if (!ret->url) |
55029ae4 | 580 | add_url_alias(ret, name); |
28b91f8a | 581 | if (!ret->url) |
5751f490 | 582 | return NULL; |
46220ca1 JH |
583 | ret->fetch = parse_fetch_refspec(ret->fetch_refspec_nr, ret->fetch_refspec); |
584 | ret->push = parse_push_refspec(ret->push_refspec_nr, ret->push_refspec); | |
5751f490 DB |
585 | return ret; |
586 | } | |
6b62816c | 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; | |
596 | if (!r->fetch) | |
46220ca1 JH |
597 | r->fetch = parse_fetch_refspec(r->fetch_refspec_nr, |
598 | r->fetch_refspec); | |
b42f6927 | 599 | if (!r->push) |
46220ca1 JH |
600 | r->push = parse_push_refspec(r->push_refspec_nr, |
601 | r->push_refspec); | |
b42f6927 JS |
602 | result = fn(r, priv); |
603 | } | |
604 | return result; | |
605 | } | |
606 | ||
2467a4fa DB |
607 | void ref_remove_duplicates(struct ref *ref_map) |
608 | { | |
609 | struct ref **posn; | |
610 | struct ref *next; | |
611 | for (; ref_map; ref_map = ref_map->next) { | |
612 | if (!ref_map->peer_ref) | |
613 | continue; | |
614 | posn = &ref_map->next; | |
615 | while (*posn) { | |
616 | if ((*posn)->peer_ref && | |
617 | !strcmp((*posn)->peer_ref->name, | |
618 | ref_map->peer_ref->name)) { | |
619 | if (strcmp((*posn)->name, ref_map->name)) | |
620 | die("%s tracks both %s and %s", | |
621 | ref_map->peer_ref->name, | |
622 | (*posn)->name, ref_map->name); | |
623 | next = (*posn)->next; | |
624 | free((*posn)->peer_ref); | |
625 | free(*posn); | |
626 | *posn = next; | |
627 | } else { | |
628 | posn = &(*posn)->next; | |
629 | } | |
630 | } | |
631 | } | |
632 | } | |
633 | ||
28b91f8a | 634 | int remote_has_url(struct remote *remote, const char *url) |
5d46c9d4 DB |
635 | { |
636 | int i; | |
28b91f8a SP |
637 | for (i = 0; i < remote->url_nr; i++) { |
638 | if (!strcmp(remote->url[i], url)) | |
5d46c9d4 DB |
639 | return 1; |
640 | } | |
641 | return 0; | |
642 | } | |
643 | ||
644 | int remote_find_tracking(struct remote *remote, struct refspec *refspec) | |
645 | { | |
b42f6927 JS |
646 | int find_src = refspec->src == NULL; |
647 | char *needle, **result; | |
5d46c9d4 | 648 | int i; |
b42f6927 JS |
649 | |
650 | if (find_src) { | |
009c5bcd | 651 | if (!refspec->dst) |
b42f6927 JS |
652 | return error("find_tracking: need either src or dst"); |
653 | needle = refspec->dst; | |
654 | result = &refspec->src; | |
655 | } else { | |
656 | needle = refspec->src; | |
657 | result = &refspec->dst; | |
658 | } | |
659 | ||
5d46c9d4 DB |
660 | for (i = 0; i < remote->fetch_refspec_nr; i++) { |
661 | struct refspec *fetch = &remote->fetch[i]; | |
b42f6927 JS |
662 | const char *key = find_src ? fetch->dst : fetch->src; |
663 | const char *value = find_src ? fetch->src : fetch->dst; | |
5d46c9d4 DB |
664 | if (!fetch->dst) |
665 | continue; | |
666 | if (fetch->pattern) { | |
ef00d150 DB |
667 | if (!prefixcmp(needle, key) && |
668 | needle[strlen(key)] == '/') { | |
b42f6927 JS |
669 | *result = xmalloc(strlen(value) + |
670 | strlen(needle) - | |
671 | strlen(key) + 1); | |
672 | strcpy(*result, value); | |
673 | strcpy(*result + strlen(value), | |
674 | needle + strlen(key)); | |
5d46c9d4 DB |
675 | refspec->force = fetch->force; |
676 | return 0; | |
677 | } | |
b42f6927 JS |
678 | } else if (!strcmp(needle, key)) { |
679 | *result = xstrdup(value); | |
680 | refspec->force = fetch->force; | |
681 | return 0; | |
5d46c9d4 DB |
682 | } |
683 | } | |
5d46c9d4 DB |
684 | return -1; |
685 | } | |
686 | ||
dfd255dd DB |
687 | struct ref *alloc_ref(unsigned namelen) |
688 | { | |
689 | struct ref *ret = xmalloc(sizeof(struct ref) + namelen); | |
690 | memset(ret, 0, sizeof(struct ref) + namelen); | |
691 | return ret; | |
692 | } | |
693 | ||
737922aa KK |
694 | struct ref *alloc_ref_from_str(const char* str) |
695 | { | |
696 | struct ref *ret = alloc_ref(strlen(str) + 1); | |
697 | strcpy(ret->name, str); | |
698 | return ret; | |
699 | } | |
700 | ||
4577370e | 701 | static struct ref *copy_ref(const struct ref *ref) |
d71ab174 DB |
702 | { |
703 | struct ref *ret = xmalloc(sizeof(struct ref) + strlen(ref->name) + 1); | |
704 | memcpy(ret, ref, sizeof(struct ref) + strlen(ref->name) + 1); | |
705 | ret->next = NULL; | |
706 | return ret; | |
707 | } | |
708 | ||
4577370e DB |
709 | struct ref *copy_ref_list(const struct ref *ref) |
710 | { | |
711 | struct ref *ret = NULL; | |
712 | struct ref **tail = &ret; | |
713 | while (ref) { | |
714 | *tail = copy_ref(ref); | |
715 | ref = ref->next; | |
716 | tail = &((*tail)->next); | |
717 | } | |
718 | return ret; | |
719 | } | |
720 | ||
be885d96 DB |
721 | void free_ref(struct ref *ref) |
722 | { | |
723 | if (!ref) | |
724 | return; | |
725 | free(ref->remote_status); | |
726 | free(ref->symref); | |
727 | free(ref); | |
728 | } | |
729 | ||
dfd255dd DB |
730 | void free_refs(struct ref *ref) |
731 | { | |
732 | struct ref *next; | |
733 | while (ref) { | |
734 | next = ref->next; | |
8e0f7003 | 735 | free(ref->peer_ref); |
be885d96 | 736 | free_ref(ref); |
dfd255dd DB |
737 | ref = next; |
738 | } | |
739 | } | |
740 | ||
6b62816c DB |
741 | static int count_refspec_match(const char *pattern, |
742 | struct ref *refs, | |
743 | struct ref **matched_ref) | |
744 | { | |
745 | int patlen = strlen(pattern); | |
746 | struct ref *matched_weak = NULL; | |
747 | struct ref *matched = NULL; | |
748 | int weak_match = 0; | |
749 | int match = 0; | |
750 | ||
751 | for (weak_match = match = 0; refs; refs = refs->next) { | |
752 | char *name = refs->name; | |
753 | int namelen = strlen(name); | |
6b62816c | 754 | |
ae36bdcf | 755 | if (!refname_match(pattern, name, ref_rev_parse_rules)) |
6b62816c DB |
756 | continue; |
757 | ||
758 | /* A match is "weak" if it is with refs outside | |
759 | * heads or tags, and did not specify the pattern | |
760 | * in full (e.g. "refs/remotes/origin/master") or at | |
761 | * least from the toplevel (e.g. "remotes/origin/master"); | |
762 | * otherwise "git push $URL master" would result in | |
763 | * ambiguity between remotes/origin/master and heads/master | |
764 | * at the remote site. | |
765 | */ | |
766 | if (namelen != patlen && | |
767 | patlen != namelen - 5 && | |
768 | prefixcmp(name, "refs/heads/") && | |
769 | prefixcmp(name, "refs/tags/")) { | |
770 | /* We want to catch the case where only weak | |
771 | * matches are found and there are multiple | |
772 | * matches, and where more than one strong | |
773 | * matches are found, as ambiguous. One | |
774 | * strong match with zero or more weak matches | |
775 | * are acceptable as a unique match. | |
776 | */ | |
777 | matched_weak = refs; | |
778 | weak_match++; | |
779 | } | |
780 | else { | |
781 | matched = refs; | |
782 | match++; | |
783 | } | |
784 | } | |
785 | if (!matched) { | |
786 | *matched_ref = matched_weak; | |
787 | return weak_match; | |
788 | } | |
789 | else { | |
790 | *matched_ref = matched; | |
791 | return match; | |
792 | } | |
793 | } | |
794 | ||
1d735267 | 795 | static void tail_link_ref(struct ref *ref, struct ref ***tail) |
6b62816c DB |
796 | { |
797 | **tail = ref; | |
1d735267 DB |
798 | while (ref->next) |
799 | ref = ref->next; | |
6b62816c | 800 | *tail = &ref->next; |
6b62816c DB |
801 | } |
802 | ||
803 | static struct ref *try_explicit_object_name(const char *name) | |
804 | { | |
805 | unsigned char sha1[20]; | |
806 | struct ref *ref; | |
6b62816c DB |
807 | |
808 | if (!*name) { | |
dfd255dd | 809 | ref = alloc_ref(20); |
6b62816c DB |
810 | strcpy(ref->name, "(delete)"); |
811 | hashclr(ref->new_sha1); | |
812 | return ref; | |
813 | } | |
814 | if (get_sha1(name, sha1)) | |
815 | return NULL; | |
737922aa | 816 | ref = alloc_ref_from_str(name); |
6b62816c DB |
817 | hashcpy(ref->new_sha1, sha1); |
818 | return ref; | |
819 | } | |
820 | ||
1d735267 | 821 | static struct ref *make_linked_ref(const char *name, struct ref ***tail) |
6b62816c | 822 | { |
737922aa | 823 | struct ref *ret = alloc_ref_from_str(name); |
1d735267 DB |
824 | tail_link_ref(ret, tail); |
825 | return ret; | |
163f0ee5 | 826 | } |
8558fd9e | 827 | |
f8aae120 JK |
828 | static char *guess_ref(const char *name, struct ref *peer) |
829 | { | |
830 | struct strbuf buf = STRBUF_INIT; | |
831 | unsigned char sha1[20]; | |
832 | ||
833 | const char *r = resolve_ref(peer->name, sha1, 1, NULL); | |
834 | if (!r) | |
835 | return NULL; | |
836 | ||
837 | if (!prefixcmp(r, "refs/heads/")) | |
838 | strbuf_addstr(&buf, "refs/heads/"); | |
839 | else if (!prefixcmp(r, "refs/tags/")) | |
840 | strbuf_addstr(&buf, "refs/tags/"); | |
841 | else | |
842 | return NULL; | |
843 | ||
844 | strbuf_addstr(&buf, name); | |
845 | return strbuf_detach(&buf, NULL); | |
846 | } | |
847 | ||
54a8ad92 JH |
848 | static int match_explicit(struct ref *src, struct ref *dst, |
849 | struct ref ***dst_tail, | |
850 | struct refspec *rs, | |
851 | int errs) | |
6b62816c | 852 | { |
54a8ad92 | 853 | struct ref *matched_src, *matched_dst; |
8558fd9e | 854 | |
54a8ad92 | 855 | const char *dst_value = rs->dst; |
f8aae120 | 856 | char *dst_guess; |
6b62816c | 857 | |
54a8ad92 JH |
858 | if (rs->pattern) |
859 | return errs; | |
8558fd9e | 860 | |
54a8ad92 JH |
861 | matched_src = matched_dst = NULL; |
862 | switch (count_refspec_match(rs->src, src, &matched_src)) { | |
863 | case 1: | |
864 | break; | |
865 | case 0: | |
866 | /* The source could be in the get_sha1() format | |
867 | * not a reference name. :refs/other is a | |
868 | * way to delete 'other' ref at the remote end. | |
869 | */ | |
870 | matched_src = try_explicit_object_name(rs->src); | |
7dfee372 SP |
871 | if (!matched_src) |
872 | error("src refspec %s does not match any.", rs->src); | |
54a8ad92 JH |
873 | break; |
874 | default: | |
3c8b7df1 | 875 | matched_src = NULL; |
7dfee372 | 876 | error("src refspec %s matches more than one.", rs->src); |
54a8ad92 JH |
877 | break; |
878 | } | |
3c8b7df1 JH |
879 | |
880 | if (!matched_src) | |
881 | errs = 1; | |
882 | ||
4491e62a | 883 | if (!dst_value) { |
9f0ea7e8 DB |
884 | unsigned char sha1[20]; |
885 | int flag; | |
886 | ||
4491e62a SP |
887 | if (!matched_src) |
888 | return errs; | |
9f0ea7e8 DB |
889 | dst_value = resolve_ref(matched_src->name, sha1, 1, &flag); |
890 | if (!dst_value || | |
891 | ((flag & REF_ISSYMREF) && | |
892 | prefixcmp(dst_value, "refs/heads/"))) | |
893 | die("%s cannot be resolved to branch.", | |
894 | matched_src->name); | |
4491e62a | 895 | } |
3c8b7df1 | 896 | |
54a8ad92 JH |
897 | switch (count_refspec_match(dst_value, dst, &matched_dst)) { |
898 | case 1: | |
899 | break; | |
900 | case 0: | |
163f0ee5 | 901 | if (!memcmp(dst_value, "refs/", 5)) |
1d735267 | 902 | matched_dst = make_linked_ref(dst_value, dst_tail); |
f8aae120 JK |
903 | else if((dst_guess = guess_ref(dst_value, matched_src))) |
904 | matched_dst = make_linked_ref(dst_guess, dst_tail); | |
3c8b7df1 | 905 | else |
f8aae120 JK |
906 | error("unable to push to unqualified destination: %s\n" |
907 | "The destination refspec neither matches an " | |
908 | "existing ref on the remote nor\n" | |
909 | "begins with refs/, and we are unable to " | |
910 | "guess a prefix based on the source ref.", | |
911 | dst_value); | |
54a8ad92 JH |
912 | break; |
913 | default: | |
3c8b7df1 | 914 | matched_dst = NULL; |
54a8ad92 JH |
915 | error("dst refspec %s matches more than one.", |
916 | dst_value); | |
917 | break; | |
918 | } | |
009c5bcd | 919 | if (errs || !matched_dst) |
3c8b7df1 | 920 | return 1; |
54a8ad92 JH |
921 | if (matched_dst->peer_ref) { |
922 | errs = 1; | |
923 | error("dst ref %s receives from more than one src.", | |
924 | matched_dst->name); | |
6b62816c | 925 | } |
54a8ad92 JH |
926 | else { |
927 | matched_dst->peer_ref = matched_src; | |
928 | matched_dst->force = rs->force; | |
6b62816c | 929 | } |
54a8ad92 JH |
930 | return errs; |
931 | } | |
932 | ||
933 | static int match_explicit_refs(struct ref *src, struct ref *dst, | |
934 | struct ref ***dst_tail, struct refspec *rs, | |
935 | int rs_nr) | |
936 | { | |
937 | int i, errs; | |
938 | for (i = errs = 0; i < rs_nr; i++) | |
939 | errs |= match_explicit(src, dst, dst_tail, &rs[i], errs); | |
6b62816c DB |
940 | return -errs; |
941 | } | |
942 | ||
6e66bf3c AR |
943 | static const struct refspec *check_pattern_match(const struct refspec *rs, |
944 | int rs_nr, | |
945 | const struct ref *src) | |
8558fd9e DB |
946 | { |
947 | int i; | |
8558fd9e | 948 | for (i = 0; i < rs_nr; i++) { |
ef00d150 DB |
949 | if (rs[i].pattern && |
950 | !prefixcmp(src->name, rs[i].src) && | |
951 | src->name[strlen(rs[i].src)] == '/') | |
6e66bf3c | 952 | return rs + i; |
8558fd9e | 953 | } |
6e66bf3c | 954 | return NULL; |
8558fd9e DB |
955 | } |
956 | ||
54a8ad92 JH |
957 | /* |
958 | * Note. This is used only by "push"; refspec matching rules for | |
959 | * push and fetch are subtly different, so do not try to reuse it | |
960 | * without thinking. | |
961 | */ | |
6b62816c | 962 | int match_refs(struct ref *src, struct ref *dst, struct ref ***dst_tail, |
28b9d6e5 | 963 | int nr_refspec, const char **refspec, int flags) |
6b62816c DB |
964 | { |
965 | struct refspec *rs = | |
46220ca1 | 966 | parse_push_refspec(nr_refspec, (const char **) refspec); |
28b9d6e5 AW |
967 | int send_all = flags & MATCH_REFS_ALL; |
968 | int send_mirror = flags & MATCH_REFS_MIRROR; | |
6b62816c | 969 | |
8558fd9e DB |
970 | if (match_explicit_refs(src, dst, dst_tail, rs, nr_refspec)) |
971 | return -1; | |
6b62816c DB |
972 | |
973 | /* pick the remainder */ | |
974 | for ( ; src; src = src->next) { | |
975 | struct ref *dst_peer; | |
6e66bf3c AR |
976 | const struct refspec *pat = NULL; |
977 | char *dst_name; | |
6b62816c DB |
978 | if (src->peer_ref) |
979 | continue; | |
6e66bf3c AR |
980 | if (nr_refspec) { |
981 | pat = check_pattern_match(rs, nr_refspec, src); | |
982 | if (!pat) | |
983 | continue; | |
984 | } | |
28b9d6e5 | 985 | else if (!send_mirror && prefixcmp(src->name, "refs/heads/")) |
098e711e JH |
986 | /* |
987 | * "matching refs"; traditionally we pushed everything | |
988 | * including refs outside refs/heads/ hierarchy, but | |
989 | * that does not make much sense these days. | |
990 | */ | |
991 | continue; | |
8558fd9e | 992 | |
6e66bf3c | 993 | if (pat) { |
efd8f793 DB |
994 | const char *dst_side = pat->dst ? pat->dst : pat->src; |
995 | dst_name = xmalloc(strlen(dst_side) + | |
6e66bf3c AR |
996 | strlen(src->name) - |
997 | strlen(pat->src) + 2); | |
efd8f793 | 998 | strcpy(dst_name, dst_side); |
6e66bf3c AR |
999 | strcat(dst_name, src->name + strlen(pat->src)); |
1000 | } else | |
aa32eedc | 1001 | dst_name = xstrdup(src->name); |
6e66bf3c | 1002 | dst_peer = find_ref_by_name(dst, dst_name); |
8558fd9e DB |
1003 | if (dst_peer && dst_peer->peer_ref) |
1004 | /* We're already sending something to this ref. */ | |
6e66bf3c | 1005 | goto free_name; |
28b9d6e5 AW |
1006 | |
1007 | if (!dst_peer && !nr_refspec && !(send_all || send_mirror)) | |
1008 | /* | |
1009 | * Remote doesn't have it, and we have no | |
8558fd9e | 1010 | * explicit pattern, and we don't have |
28b9d6e5 AW |
1011 | * --all nor --mirror. |
1012 | */ | |
6e66bf3c | 1013 | goto free_name; |
6b62816c DB |
1014 | if (!dst_peer) { |
1015 | /* Create a new one and link it */ | |
1d735267 | 1016 | dst_peer = make_linked_ref(dst_name, dst_tail); |
6b62816c | 1017 | hashcpy(dst_peer->new_sha1, src->new_sha1); |
6b62816c DB |
1018 | } |
1019 | dst_peer->peer_ref = src; | |
5eb73581 JK |
1020 | if (pat) |
1021 | dst_peer->force = pat->force; | |
6e66bf3c AR |
1022 | free_name: |
1023 | free(dst_name); | |
6b62816c DB |
1024 | } |
1025 | return 0; | |
1026 | } | |
cf818348 DB |
1027 | |
1028 | struct branch *branch_get(const char *name) | |
1029 | { | |
1030 | struct branch *ret; | |
1031 | ||
1032 | read_config(); | |
1033 | if (!name || !*name || !strcmp(name, "HEAD")) | |
1034 | ret = current_branch; | |
1035 | else | |
1036 | ret = make_branch(name, 0); | |
1037 | if (ret && ret->remote_name) { | |
1038 | ret->remote = remote_get(ret->remote_name); | |
1039 | if (ret->merge_nr) { | |
1040 | int i; | |
1041 | ret->merge = xcalloc(sizeof(*ret->merge), | |
1042 | ret->merge_nr); | |
1043 | for (i = 0; i < ret->merge_nr; i++) { | |
1044 | ret->merge[i] = xcalloc(1, sizeof(**ret->merge)); | |
1045 | ret->merge[i]->src = xstrdup(ret->merge_name[i]); | |
1046 | remote_find_tracking(ret->remote, | |
1047 | ret->merge[i]); | |
1048 | } | |
1049 | } | |
1050 | } | |
1051 | return ret; | |
1052 | } | |
1053 | ||
1054 | int branch_has_merge_config(struct branch *branch) | |
1055 | { | |
1056 | return branch && !!branch->merge; | |
1057 | } | |
1058 | ||
85682c19 SP |
1059 | int branch_merge_matches(struct branch *branch, |
1060 | int i, | |
1061 | const char *refname) | |
cf818348 | 1062 | { |
85682c19 | 1063 | if (!branch || i < 0 || i >= branch->merge_nr) |
cf818348 | 1064 | return 0; |
605b4978 | 1065 | return refname_match(branch->merge[i]->src, refname, ref_fetch_rules); |
cf818348 | 1066 | } |
d71ab174 | 1067 | |
4577370e | 1068 | static struct ref *get_expanded_map(const struct ref *remote_refs, |
d71ab174 DB |
1069 | const struct refspec *refspec) |
1070 | { | |
4577370e | 1071 | const struct ref *ref; |
d71ab174 DB |
1072 | struct ref *ret = NULL; |
1073 | struct ref **tail = &ret; | |
1074 | ||
1075 | int remote_prefix_len = strlen(refspec->src); | |
1076 | int local_prefix_len = strlen(refspec->dst); | |
1077 | ||
1078 | for (ref = remote_refs; ref; ref = ref->next) { | |
1079 | if (strchr(ref->name, '^')) | |
1080 | continue; /* a dereference item */ | |
1081 | if (!prefixcmp(ref->name, refspec->src)) { | |
4577370e | 1082 | const char *match; |
d71ab174 DB |
1083 | struct ref *cpy = copy_ref(ref); |
1084 | match = ref->name + remote_prefix_len; | |
1085 | ||
1086 | cpy->peer_ref = alloc_ref(local_prefix_len + | |
1087 | strlen(match) + 1); | |
1088 | sprintf(cpy->peer_ref->name, "%s%s", | |
1089 | refspec->dst, match); | |
1090 | if (refspec->force) | |
1091 | cpy->peer_ref->force = 1; | |
1092 | *tail = cpy; | |
1093 | tail = &cpy->next; | |
1094 | } | |
1095 | } | |
1096 | ||
1097 | return ret; | |
1098 | } | |
1099 | ||
4577370e | 1100 | static const struct ref *find_ref_by_name_abbrev(const struct ref *refs, const char *name) |
d71ab174 | 1101 | { |
4577370e | 1102 | const struct ref *ref; |
d71ab174 | 1103 | for (ref = refs; ref; ref = ref->next) { |
605b4978 | 1104 | if (refname_match(name, ref->name, ref_fetch_rules)) |
d71ab174 DB |
1105 | return ref; |
1106 | } | |
1107 | return NULL; | |
1108 | } | |
1109 | ||
4577370e | 1110 | struct ref *get_remote_ref(const struct ref *remote_refs, const char *name) |
d71ab174 | 1111 | { |
4577370e | 1112 | const struct ref *ref = find_ref_by_name_abbrev(remote_refs, name); |
d71ab174 DB |
1113 | |
1114 | if (!ref) | |
9ad7c5ae | 1115 | return NULL; |
d71ab174 DB |
1116 | |
1117 | return copy_ref(ref); | |
1118 | } | |
1119 | ||
1120 | static struct ref *get_local_ref(const char *name) | |
1121 | { | |
1122 | struct ref *ret; | |
1123 | if (!name) | |
1124 | return NULL; | |
1125 | ||
1126 | if (!prefixcmp(name, "refs/")) { | |
737922aa | 1127 | return alloc_ref_from_str(name); |
d71ab174 DB |
1128 | } |
1129 | ||
1130 | if (!prefixcmp(name, "heads/") || | |
1131 | !prefixcmp(name, "tags/") || | |
1132 | !prefixcmp(name, "remotes/")) { | |
1133 | ret = alloc_ref(strlen(name) + 6); | |
1134 | sprintf(ret->name, "refs/%s", name); | |
1135 | return ret; | |
1136 | } | |
1137 | ||
1138 | ret = alloc_ref(strlen(name) + 12); | |
1139 | sprintf(ret->name, "refs/heads/%s", name); | |
1140 | return ret; | |
1141 | } | |
1142 | ||
4577370e | 1143 | int get_fetch_map(const struct ref *remote_refs, |
d71ab174 | 1144 | const struct refspec *refspec, |
9ad7c5ae JH |
1145 | struct ref ***tail, |
1146 | int missing_ok) | |
d71ab174 | 1147 | { |
ef00d150 | 1148 | struct ref *ref_map, **rmp; |
d71ab174 DB |
1149 | |
1150 | if (refspec->pattern) { | |
1151 | ref_map = get_expanded_map(remote_refs, refspec); | |
1152 | } else { | |
9ad7c5ae JH |
1153 | const char *name = refspec->src[0] ? refspec->src : "HEAD"; |
1154 | ||
1155 | ref_map = get_remote_ref(remote_refs, name); | |
1156 | if (!missing_ok && !ref_map) | |
1157 | die("Couldn't find remote ref %s", name); | |
1158 | if (ref_map) { | |
1159 | ref_map->peer_ref = get_local_ref(refspec->dst); | |
1160 | if (ref_map->peer_ref && refspec->force) | |
1161 | ref_map->peer_ref->force = 1; | |
1162 | } | |
d71ab174 DB |
1163 | } |
1164 | ||
ef00d150 DB |
1165 | for (rmp = &ref_map; *rmp; ) { |
1166 | if ((*rmp)->peer_ref) { | |
1167 | int st = check_ref_format((*rmp)->peer_ref->name + 5); | |
1168 | if (st && st != CHECK_REF_FORMAT_ONELEVEL) { | |
1169 | struct ref *ignore = *rmp; | |
1170 | error("* Ignoring funny ref '%s' locally", | |
1171 | (*rmp)->peer_ref->name); | |
1172 | *rmp = (*rmp)->next; | |
1173 | free(ignore->peer_ref); | |
1174 | free(ignore); | |
1175 | continue; | |
1176 | } | |
1177 | } | |
1178 | rmp = &((*rmp)->next); | |
d71ab174 DB |
1179 | } |
1180 | ||
8f70a765 AR |
1181 | if (ref_map) |
1182 | tail_link_ref(ref_map, tail); | |
d71ab174 DB |
1183 | |
1184 | return 0; | |
1185 | } | |
be885d96 DB |
1186 | |
1187 | int resolve_remote_symref(struct ref *ref, struct ref *list) | |
1188 | { | |
1189 | if (!ref->symref) | |
1190 | return 0; | |
1191 | for (; list; list = list->next) | |
1192 | if (!strcmp(ref->symref, list->name)) { | |
1193 | hashcpy(ref->old_sha1, list->old_sha1); | |
1194 | return 0; | |
1195 | } | |
1196 | return 1; | |
1197 | } |