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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" | |
6d21bf96 JH |
4 | #include "commit.h" |
5 | #include "diff.h" | |
6 | #include "revision.h" | |
8ca12c0d | 7 | #include "dir.h" |
ec8452d5 | 8 | #include "tag.h" |
73cf0822 | 9 | #include "string-list.h" |
5751f490 | 10 | |
e0aaa29f DB |
11 | static struct refspec s_tag_refspec = { |
12 | 0, | |
13 | 1, | |
b84c343c | 14 | 0, |
08fbdb30 DB |
15 | "refs/tags/*", |
16 | "refs/tags/*" | |
e0aaa29f DB |
17 | }; |
18 | ||
19 | const struct refspec *tag_refspec = &s_tag_refspec; | |
20 | ||
844112ca JH |
21 | struct counted_string { |
22 | size_t len; | |
23 | const char *s; | |
24 | }; | |
55029ae4 DB |
25 | struct rewrite { |
26 | const char *base; | |
844112ca JH |
27 | size_t baselen; |
28 | struct counted_string *instead_of; | |
55029ae4 DB |
29 | int instead_of_nr; |
30 | int instead_of_alloc; | |
31 | }; | |
d071d942 JT |
32 | struct rewrites { |
33 | struct rewrite **rewrite; | |
34 | int rewrite_alloc; | |
35 | int rewrite_nr; | |
36 | }; | |
55029ae4 | 37 | |
5751f490 | 38 | static struct remote **remotes; |
2d31347b DB |
39 | static int remotes_alloc; |
40 | static int remotes_nr; | |
5751f490 | 41 | |
cf818348 | 42 | static struct branch **branches; |
2d31347b DB |
43 | static int branches_alloc; |
44 | static int branches_nr; | |
cf818348 DB |
45 | |
46 | static struct branch *current_branch; | |
47 | static const char *default_remote_name; | |
fa685bdf | 48 | static int explicit_default_remote_name; |
cf818348 | 49 | |
d071d942 | 50 | static struct rewrites rewrites; |
1c2eafb8 | 51 | static struct rewrites rewrites_push; |
55029ae4 | 52 | |
5751f490 DB |
53 | #define BUF_SIZE (2048) |
54 | static char buffer[BUF_SIZE]; | |
55 | ||
d071d942 | 56 | static const char *alias_url(const char *url, struct rewrites *r) |
55029ae4 DB |
57 | { |
58 | int i, j; | |
844112ca JH |
59 | char *ret; |
60 | struct counted_string *longest; | |
61 | int longest_i; | |
62 | ||
63 | longest = NULL; | |
64 | longest_i = -1; | |
d071d942 JT |
65 | for (i = 0; i < r->rewrite_nr; i++) { |
66 | if (!r->rewrite[i]) | |
55029ae4 | 67 | continue; |
d071d942 JT |
68 | for (j = 0; j < r->rewrite[i]->instead_of_nr; j++) { |
69 | if (!prefixcmp(url, r->rewrite[i]->instead_of[j].s) && | |
844112ca | 70 | (!longest || |
d071d942 JT |
71 | longest->len < r->rewrite[i]->instead_of[j].len)) { |
72 | longest = &(r->rewrite[i]->instead_of[j]); | |
844112ca | 73 | longest_i = i; |
55029ae4 DB |
74 | } |
75 | } | |
76 | } | |
844112ca JH |
77 | if (!longest) |
78 | return url; | |
79 | ||
d071d942 | 80 | ret = xmalloc(r->rewrite[longest_i]->baselen + |
844112ca | 81 | (strlen(url) - longest->len) + 1); |
d071d942 JT |
82 | strcpy(ret, r->rewrite[longest_i]->base); |
83 | strcpy(ret + r->rewrite[longest_i]->baselen, url + longest->len); | |
844112ca | 84 | return ret; |
55029ae4 DB |
85 | } |
86 | ||
5751f490 DB |
87 | static void add_push_refspec(struct remote *remote, const char *ref) |
88 | { | |
2d31347b DB |
89 | ALLOC_GROW(remote->push_refspec, |
90 | remote->push_refspec_nr + 1, | |
91 | remote->push_refspec_alloc); | |
92 | remote->push_refspec[remote->push_refspec_nr++] = ref; | |
5751f490 DB |
93 | } |
94 | ||
5d46c9d4 DB |
95 | static void add_fetch_refspec(struct remote *remote, const char *ref) |
96 | { | |
2d31347b DB |
97 | ALLOC_GROW(remote->fetch_refspec, |
98 | remote->fetch_refspec_nr + 1, | |
99 | remote->fetch_refspec_alloc); | |
100 | remote->fetch_refspec[remote->fetch_refspec_nr++] = ref; | |
5d46c9d4 DB |
101 | } |
102 | ||
28b91f8a | 103 | static void add_url(struct remote *remote, const char *url) |
5751f490 | 104 | { |
2d31347b DB |
105 | ALLOC_GROW(remote->url, remote->url_nr + 1, remote->url_alloc); |
106 | remote->url[remote->url_nr++] = url; | |
5751f490 DB |
107 | } |
108 | ||
20346234 MG |
109 | static void add_pushurl(struct remote *remote, const char *pushurl) |
110 | { | |
111 | ALLOC_GROW(remote->pushurl, remote->pushurl_nr + 1, remote->pushurl_alloc); | |
112 | remote->pushurl[remote->pushurl_nr++] = pushurl; | |
113 | } | |
114 | ||
1c2eafb8 JT |
115 | static void add_pushurl_alias(struct remote *remote, const char *url) |
116 | { | |
117 | const char *pushurl = alias_url(url, &rewrites_push); | |
118 | if (pushurl != url) | |
119 | add_pushurl(remote, pushurl); | |
120 | } | |
121 | ||
122 | static void add_url_alias(struct remote *remote, const char *url) | |
123 | { | |
124 | add_url(remote, alias_url(url, &rewrites)); | |
125 | add_pushurl_alias(remote, url); | |
126 | } | |
127 | ||
5751f490 DB |
128 | static struct remote *make_remote(const char *name, int len) |
129 | { | |
2d31347b DB |
130 | struct remote *ret; |
131 | int i; | |
5751f490 | 132 | |
2d31347b DB |
133 | for (i = 0; i < remotes_nr; i++) { |
134 | if (len ? (!strncmp(name, remotes[i]->name, len) && | |
135 | !remotes[i]->name[len]) : | |
136 | !strcmp(name, remotes[i]->name)) | |
137 | return remotes[i]; | |
5751f490 DB |
138 | } |
139 | ||
2d31347b DB |
140 | ret = xcalloc(1, sizeof(struct remote)); |
141 | ALLOC_GROW(remotes, remotes_nr + 1, remotes_alloc); | |
142 | remotes[remotes_nr++] = ret; | |
5751f490 | 143 | if (len) |
2d31347b | 144 | ret->name = xstrndup(name, len); |
5751f490 | 145 | else |
2d31347b DB |
146 | ret->name = xstrdup(name); |
147 | return ret; | |
5751f490 DB |
148 | } |
149 | ||
cf818348 DB |
150 | static void add_merge(struct branch *branch, const char *name) |
151 | { | |
2d31347b DB |
152 | ALLOC_GROW(branch->merge_name, branch->merge_nr + 1, |
153 | branch->merge_alloc); | |
154 | branch->merge_name[branch->merge_nr++] = name; | |
cf818348 DB |
155 | } |
156 | ||
157 | static struct branch *make_branch(const char *name, int len) | |
158 | { | |
2d31347b DB |
159 | struct branch *ret; |
160 | int i; | |
cf818348 DB |
161 | char *refname; |
162 | ||
2d31347b DB |
163 | for (i = 0; i < branches_nr; i++) { |
164 | if (len ? (!strncmp(name, branches[i]->name, len) && | |
165 | !branches[i]->name[len]) : | |
166 | !strcmp(name, branches[i]->name)) | |
167 | return branches[i]; | |
cf818348 DB |
168 | } |
169 | ||
2d31347b DB |
170 | ALLOC_GROW(branches, branches_nr + 1, branches_alloc); |
171 | ret = xcalloc(1, sizeof(struct branch)); | |
172 | branches[branches_nr++] = ret; | |
cf818348 | 173 | if (len) |
2d31347b | 174 | ret->name = xstrndup(name, len); |
cf818348 | 175 | else |
2d31347b | 176 | ret->name = xstrdup(name); |
e8eec71d | 177 | refname = xmalloc(strlen(name) + strlen("refs/heads/") + 1); |
cf818348 | 178 | strcpy(refname, "refs/heads/"); |
2d31347b DB |
179 | strcpy(refname + strlen("refs/heads/"), ret->name); |
180 | ret->refname = refname; | |
cf818348 | 181 | |
2d31347b | 182 | return ret; |
cf818348 DB |
183 | } |
184 | ||
d071d942 | 185 | static struct rewrite *make_rewrite(struct rewrites *r, const char *base, int len) |
55029ae4 DB |
186 | { |
187 | struct rewrite *ret; | |
188 | int i; | |
189 | ||
d071d942 | 190 | for (i = 0; i < r->rewrite_nr; i++) { |
844112ca | 191 | if (len |
d071d942 JT |
192 | ? (len == r->rewrite[i]->baselen && |
193 | !strncmp(base, r->rewrite[i]->base, len)) | |
194 | : !strcmp(base, r->rewrite[i]->base)) | |
195 | return r->rewrite[i]; | |
55029ae4 DB |
196 | } |
197 | ||
d071d942 | 198 | ALLOC_GROW(r->rewrite, r->rewrite_nr + 1, r->rewrite_alloc); |
55029ae4 | 199 | ret = xcalloc(1, sizeof(struct rewrite)); |
d071d942 | 200 | r->rewrite[r->rewrite_nr++] = ret; |
844112ca | 201 | if (len) { |
55029ae4 | 202 | ret->base = xstrndup(base, len); |
844112ca JH |
203 | ret->baselen = len; |
204 | } | |
205 | else { | |
55029ae4 | 206 | ret->base = xstrdup(base); |
844112ca JH |
207 | ret->baselen = strlen(base); |
208 | } | |
55029ae4 DB |
209 | return ret; |
210 | } | |
211 | ||
212 | static void add_instead_of(struct rewrite *rewrite, const char *instead_of) | |
213 | { | |
214 | ALLOC_GROW(rewrite->instead_of, rewrite->instead_of_nr + 1, rewrite->instead_of_alloc); | |
844112ca JH |
215 | rewrite->instead_of[rewrite->instead_of_nr].s = instead_of; |
216 | rewrite->instead_of[rewrite->instead_of_nr].len = strlen(instead_of); | |
217 | rewrite->instead_of_nr++; | |
55029ae4 DB |
218 | } |
219 | ||
5751f490 DB |
220 | static void read_remotes_file(struct remote *remote) |
221 | { | |
222 | FILE *f = fopen(git_path("remotes/%s", remote->name), "r"); | |
223 | ||
224 | if (!f) | |
225 | return; | |
89cf4c70 | 226 | remote->origin = REMOTE_REMOTES; |
5751f490 DB |
227 | while (fgets(buffer, BUF_SIZE, f)) { |
228 | int value_list; | |
229 | char *s, *p; | |
230 | ||
231 | if (!prefixcmp(buffer, "URL:")) { | |
232 | value_list = 0; | |
233 | s = buffer + 4; | |
234 | } else if (!prefixcmp(buffer, "Push:")) { | |
235 | value_list = 1; | |
236 | s = buffer + 5; | |
5d46c9d4 DB |
237 | } else if (!prefixcmp(buffer, "Pull:")) { |
238 | value_list = 2; | |
239 | s = buffer + 5; | |
5751f490 DB |
240 | } else |
241 | continue; | |
242 | ||
243 | while (isspace(*s)) | |
244 | s++; | |
245 | if (!*s) | |
246 | continue; | |
247 | ||
248 | p = s + strlen(s); | |
249 | while (isspace(p[-1])) | |
250 | *--p = 0; | |
251 | ||
252 | switch (value_list) { | |
253 | case 0: | |
55029ae4 | 254 | add_url_alias(remote, xstrdup(s)); |
5751f490 DB |
255 | break; |
256 | case 1: | |
257 | add_push_refspec(remote, xstrdup(s)); | |
258 | break; | |
5d46c9d4 DB |
259 | case 2: |
260 | add_fetch_refspec(remote, xstrdup(s)); | |
261 | break; | |
5751f490 DB |
262 | } |
263 | } | |
264 | fclose(f); | |
265 | } | |
266 | ||
267 | static void read_branches_file(struct remote *remote) | |
268 | { | |
269 | const char *slash = strchr(remote->name, '/'); | |
cf818348 | 270 | char *frag; |
f285a2d7 | 271 | struct strbuf branch = STRBUF_INIT; |
5751f490 DB |
272 | int n = slash ? slash - remote->name : 1000; |
273 | FILE *f = fopen(git_path("branches/%.*s", n, remote->name), "r"); | |
274 | char *s, *p; | |
275 | int len; | |
276 | ||
277 | if (!f) | |
278 | return; | |
279 | s = fgets(buffer, BUF_SIZE, f); | |
280 | fclose(f); | |
281 | if (!s) | |
282 | return; | |
283 | while (isspace(*s)) | |
284 | s++; | |
285 | if (!*s) | |
286 | return; | |
89cf4c70 | 287 | remote->origin = REMOTE_BRANCHES; |
5751f490 DB |
288 | p = s + strlen(s); |
289 | while (isspace(p[-1])) | |
290 | *--p = 0; | |
291 | len = p - s; | |
292 | if (slash) | |
293 | len += strlen(slash); | |
294 | p = xmalloc(len + 1); | |
295 | strcpy(p, s); | |
296 | if (slash) | |
297 | strcat(p, slash); | |
472fa4cd DB |
298 | |
299 | /* | |
300 | * With "slash", e.g. "git fetch jgarzik/netdev-2.6" when | |
301 | * reading from $GIT_DIR/branches/jgarzik fetches "HEAD" from | |
302 | * the partial URL obtained from the branches file plus | |
303 | * "/netdev-2.6" and does not store it in any tracking ref. | |
304 | * #branch specifier in the file is ignored. | |
305 | * | |
306 | * Otherwise, the branches file would have URL and optionally | |
307 | * #branch specified. The "master" (or specified) branch is | |
308 | * fetched and stored in the local branch of the same name. | |
309 | */ | |
cf818348 DB |
310 | frag = strchr(p, '#'); |
311 | if (frag) { | |
312 | *(frag++) = '\0'; | |
472fa4cd DB |
313 | strbuf_addf(&branch, "refs/heads/%s", frag); |
314 | } else | |
315 | strbuf_addstr(&branch, "refs/heads/master"); | |
316 | if (!slash) { | |
317 | strbuf_addf(&branch, ":refs/heads/%s", remote->name); | |
cf818348 | 318 | } else { |
472fa4cd DB |
319 | strbuf_reset(&branch); |
320 | strbuf_addstr(&branch, "HEAD:"); | |
cf818348 | 321 | } |
55029ae4 | 322 | add_url_alias(remote, p); |
2af202be | 323 | add_fetch_refspec(remote, strbuf_detach(&branch, NULL)); |
18afe101 MK |
324 | /* |
325 | * Cogito compatible push: push current HEAD to remote #branch | |
326 | * (master if missing) | |
327 | */ | |
328 | strbuf_init(&branch, 0); | |
329 | strbuf_addstr(&branch, "HEAD"); | |
330 | if (frag) | |
331 | strbuf_addf(&branch, ":refs/heads/%s", frag); | |
332 | else | |
333 | strbuf_addstr(&branch, ":refs/heads/master"); | |
2af202be | 334 | add_push_refspec(remote, strbuf_detach(&branch, NULL)); |
d71ab174 | 335 | remote->fetch_tags = 1; /* always auto-follow */ |
5751f490 DB |
336 | } |
337 | ||
ef90d6d4 | 338 | static int handle_config(const char *key, const char *value, void *cb) |
5751f490 DB |
339 | { |
340 | const char *name; | |
341 | const char *subkey; | |
342 | struct remote *remote; | |
cf818348 DB |
343 | struct branch *branch; |
344 | if (!prefixcmp(key, "branch.")) { | |
345 | name = key + 7; | |
346 | subkey = strrchr(name, '.'); | |
cf818348 DB |
347 | if (!subkey) |
348 | return 0; | |
896c0535 | 349 | branch = make_branch(name, subkey - name); |
cf818348 | 350 | if (!strcmp(subkey, ".remote")) { |
d2370cc2 JH |
351 | if (!value) |
352 | return config_error_nonbool(key); | |
cf818348 | 353 | branch->remote_name = xstrdup(value); |
fa685bdf | 354 | if (branch == current_branch) { |
cf818348 | 355 | default_remote_name = branch->remote_name; |
fa685bdf DB |
356 | explicit_default_remote_name = 1; |
357 | } | |
d2370cc2 JH |
358 | } else if (!strcmp(subkey, ".merge")) { |
359 | if (!value) | |
360 | return config_error_nonbool(key); | |
cf818348 | 361 | add_merge(branch, xstrdup(value)); |
d2370cc2 | 362 | } |
cf818348 | 363 | return 0; |
5751f490 | 364 | } |
55029ae4 DB |
365 | if (!prefixcmp(key, "url.")) { |
366 | struct rewrite *rewrite; | |
60e3aba9 | 367 | name = key + 4; |
55029ae4 DB |
368 | subkey = strrchr(name, '.'); |
369 | if (!subkey) | |
370 | return 0; | |
55029ae4 | 371 | if (!strcmp(subkey, ".insteadof")) { |
1c2eafb8 JT |
372 | rewrite = make_rewrite(&rewrites, name, subkey - name); |
373 | if (!value) | |
374 | return config_error_nonbool(key); | |
375 | add_instead_of(rewrite, xstrdup(value)); | |
376 | } else if (!strcmp(subkey, ".pushinsteadof")) { | |
377 | rewrite = make_rewrite(&rewrites_push, name, subkey - name); | |
55029ae4 DB |
378 | if (!value) |
379 | return config_error_nonbool(key); | |
380 | add_instead_of(rewrite, xstrdup(value)); | |
381 | } | |
382 | } | |
5751f490 DB |
383 | if (prefixcmp(key, "remote.")) |
384 | return 0; | |
385 | name = key + 7; | |
c82efafc BC |
386 | if (*name == '/') { |
387 | warning("Config remote shorthand cannot begin with '/': %s", | |
388 | name); | |
389 | return 0; | |
390 | } | |
5751f490 DB |
391 | subkey = strrchr(name, '.'); |
392 | if (!subkey) | |
cd294bc3 | 393 | return 0; |
5751f490 | 394 | remote = make_remote(name, subkey - name); |
89cf4c70 | 395 | remote->origin = REMOTE_CONFIG; |
84bb2dfd PB |
396 | if (!strcmp(subkey, ".mirror")) |
397 | remote->mirror = git_config_bool(key, value); | |
398 | else if (!strcmp(subkey, ".skipdefaultupdate")) | |
399 | remote->skip_default_update = git_config_bool(key, value); | |
7cc91a2f BG |
400 | else if (!strcmp(subkey, ".skipfetchall")) |
401 | remote->skip_default_update = git_config_bool(key, value); | |
84bb2dfd PB |
402 | else if (!strcmp(subkey, ".url")) { |
403 | const char *v; | |
404 | if (git_config_string(&v, key, value)) | |
405 | return -1; | |
406 | add_url(remote, v); | |
20346234 MG |
407 | } else if (!strcmp(subkey, ".pushurl")) { |
408 | const char *v; | |
409 | if (git_config_string(&v, key, value)) | |
410 | return -1; | |
411 | add_pushurl(remote, v); | |
5751f490 | 412 | } else if (!strcmp(subkey, ".push")) { |
84bb2dfd PB |
413 | const char *v; |
414 | if (git_config_string(&v, key, value)) | |
415 | return -1; | |
416 | add_push_refspec(remote, v); | |
5d46c9d4 | 417 | } else if (!strcmp(subkey, ".fetch")) { |
84bb2dfd PB |
418 | const char *v; |
419 | if (git_config_string(&v, key, value)) | |
420 | return -1; | |
421 | add_fetch_refspec(remote, v); | |
5751f490 | 422 | } else if (!strcmp(subkey, ".receivepack")) { |
84bb2dfd PB |
423 | const char *v; |
424 | if (git_config_string(&v, key, value)) | |
425 | return -1; | |
5751f490 | 426 | if (!remote->receivepack) |
84bb2dfd | 427 | remote->receivepack = v; |
5751f490 DB |
428 | else |
429 | error("more than one receivepack given, using the first"); | |
0012ba21 | 430 | } else if (!strcmp(subkey, ".uploadpack")) { |
84bb2dfd PB |
431 | const char *v; |
432 | if (git_config_string(&v, key, value)) | |
433 | return -1; | |
0012ba21 | 434 | if (!remote->uploadpack) |
84bb2dfd | 435 | remote->uploadpack = v; |
0012ba21 DB |
436 | else |
437 | error("more than one uploadpack given, using the first"); | |
d71ab174 DB |
438 | } else if (!strcmp(subkey, ".tagopt")) { |
439 | if (!strcmp(value, "--no-tags")) | |
440 | remote->fetch_tags = -1; | |
14c98218 | 441 | } else if (!strcmp(subkey, ".proxy")) { |
84bb2dfd PB |
442 | return git_config_string((const char **)&remote->http_proxy, |
443 | key, value); | |
444 | } | |
5751f490 DB |
445 | return 0; |
446 | } | |
447 | ||
55029ae4 DB |
448 | static void alias_all_urls(void) |
449 | { | |
450 | int i, j; | |
451 | for (i = 0; i < remotes_nr; i++) { | |
1c2eafb8 | 452 | int add_pushurl_aliases; |
55029ae4 DB |
453 | if (!remotes[i]) |
454 | continue; | |
20346234 | 455 | for (j = 0; j < remotes[i]->pushurl_nr; j++) { |
d071d942 | 456 | remotes[i]->pushurl[j] = alias_url(remotes[i]->pushurl[j], &rewrites); |
20346234 | 457 | } |
1c2eafb8 JT |
458 | add_pushurl_aliases = remotes[i]->pushurl_nr == 0; |
459 | for (j = 0; j < remotes[i]->url_nr; j++) { | |
460 | if (add_pushurl_aliases) | |
461 | add_pushurl_alias(remotes[i], remotes[i]->url[j]); | |
462 | remotes[i]->url[j] = alias_url(remotes[i]->url[j], &rewrites); | |
463 | } | |
55029ae4 DB |
464 | } |
465 | } | |
466 | ||
5751f490 DB |
467 | static void read_config(void) |
468 | { | |
469 | unsigned char sha1[20]; | |
470 | const char *head_ref; | |
471 | int flag; | |
472 | if (default_remote_name) // did this already | |
473 | return; | |
474 | default_remote_name = xstrdup("origin"); | |
475 | current_branch = NULL; | |
476 | head_ref = resolve_ref("HEAD", sha1, 0, &flag); | |
477 | if (head_ref && (flag & REF_ISSYMREF) && | |
478 | !prefixcmp(head_ref, "refs/heads/")) { | |
cf818348 DB |
479 | current_branch = |
480 | make_branch(head_ref + strlen("refs/heads/"), 0); | |
5751f490 | 481 | } |
ef90d6d4 | 482 | git_config(handle_config, NULL); |
55029ae4 | 483 | alias_all_urls(); |
5751f490 DB |
484 | } |
485 | ||
47c6ef1c JH |
486 | /* |
487 | * We need to make sure the tracking branches are well formed, but a | |
488 | * wildcard refspec in "struct refspec" must have a trailing slash. We | |
489 | * temporarily drop the trailing '/' while calling check_ref_format(), | |
490 | * and put it back. The caller knows that a CHECK_REF_FORMAT_ONELEVEL | |
491 | * error return is Ok for a wildcard refspec. | |
492 | */ | |
493 | static int verify_refname(char *name, int is_glob) | |
494 | { | |
08fbdb30 | 495 | int result; |
47c6ef1c | 496 | |
47c6ef1c | 497 | result = check_ref_format(name); |
08fbdb30 DB |
498 | if (is_glob && result == CHECK_REF_FORMAT_WILDCARD) |
499 | result = CHECK_REF_FORMAT_OK; | |
47c6ef1c JH |
500 | return result; |
501 | } | |
502 | ||
2cb1f36d BC |
503 | /* |
504 | * This function frees a refspec array. | |
505 | * Warning: code paths should be checked to ensure that the src | |
506 | * and dst pointers are always freeable pointers as well | |
507 | * as the refspec pointer itself. | |
508 | */ | |
697d7f5d | 509 | static void free_refspecs(struct refspec *refspec, int nr_refspec) |
2cb1f36d BC |
510 | { |
511 | int i; | |
512 | ||
513 | if (!refspec) | |
514 | return; | |
515 | ||
516 | for (i = 0; i < nr_refspec; i++) { | |
517 | free(refspec[i].src); | |
518 | free(refspec[i].dst); | |
519 | } | |
520 | free(refspec); | |
521 | } | |
522 | ||
24b6177e | 523 | static struct refspec *parse_refspec_internal(int nr_refspec, const char **refspec, int fetch, int verify) |
6b62816c DB |
524 | { |
525 | int i; | |
ef00d150 | 526 | int st; |
6b62816c | 527 | struct refspec *rs = xcalloc(sizeof(*rs), nr_refspec); |
46220ca1 | 528 | |
6b62816c | 529 | for (i = 0; i < nr_refspec; i++) { |
47c6ef1c | 530 | size_t llen; |
46220ca1 JH |
531 | int is_glob; |
532 | const char *lhs, *rhs; | |
533 | ||
8e76bf3f | 534 | is_glob = 0; |
46220ca1 JH |
535 | |
536 | lhs = refspec[i]; | |
537 | if (*lhs == '+') { | |
6b62816c | 538 | rs[i].force = 1; |
46220ca1 | 539 | lhs++; |
6b62816c | 540 | } |
46220ca1 JH |
541 | |
542 | rhs = strrchr(lhs, ':'); | |
a83619d6 PB |
543 | |
544 | /* | |
545 | * Before going on, special case ":" (or "+:") as a refspec | |
546 | * for matching refs. | |
547 | */ | |
548 | if (!fetch && rhs == lhs && rhs[1] == '\0') { | |
549 | rs[i].matching = 1; | |
550 | continue; | |
551 | } | |
552 | ||
46220ca1 | 553 | if (rhs) { |
47c6ef1c | 554 | size_t rlen = strlen(++rhs); |
abd2bde7 | 555 | is_glob = (1 <= rlen && strchr(rhs, '*')); |
08fbdb30 | 556 | rs[i].dst = xstrndup(rhs, rlen); |
6b62816c | 557 | } |
ef00d150 | 558 | |
46220ca1 | 559 | llen = (rhs ? (rhs - lhs - 1) : strlen(lhs)); |
abd2bde7 | 560 | if (1 <= llen && memchr(lhs, '*', llen)) { |
7d19da46 JH |
561 | if ((rhs && !is_glob) || (!rhs && fetch)) |
562 | goto invalid; | |
563 | is_glob = 1; | |
7d19da46 JH |
564 | } else if (rhs && is_glob) { |
565 | goto invalid; | |
ef00d150 | 566 | } |
7d19da46 | 567 | |
46220ca1 JH |
568 | rs[i].pattern = is_glob; |
569 | rs[i].src = xstrndup(lhs, llen); | |
570 | ||
571 | if (fetch) { | |
572 | /* | |
573 | * LHS | |
574 | * - empty is allowed; it means HEAD. | |
575 | * - otherwise it must be a valid looking ref. | |
576 | */ | |
577 | if (!*rs[i].src) | |
578 | ; /* empty is ok */ | |
579 | else { | |
47c6ef1c | 580 | st = verify_refname(rs[i].src, is_glob); |
46220ca1 JH |
581 | if (st && st != CHECK_REF_FORMAT_ONELEVEL) |
582 | goto invalid; | |
583 | } | |
584 | /* | |
585 | * RHS | |
7d19da46 | 586 | * - missing is ok, and is same as empty. |
46220ca1 JH |
587 | * - empty is ok; it means not to store. |
588 | * - otherwise it must be a valid looking ref. | |
589 | */ | |
590 | if (!rs[i].dst) { | |
591 | ; /* ok */ | |
592 | } else if (!*rs[i].dst) { | |
593 | ; /* ok */ | |
594 | } else { | |
47c6ef1c | 595 | st = verify_refname(rs[i].dst, is_glob); |
46220ca1 JH |
596 | if (st && st != CHECK_REF_FORMAT_ONELEVEL) |
597 | goto invalid; | |
598 | } | |
599 | } else { | |
600 | /* | |
601 | * LHS | |
602 | * - empty is allowed; it means delete. | |
603 | * - when wildcarded, it must be a valid looking ref. | |
604 | * - otherwise, it must be an extended SHA-1, but | |
605 | * there is no existing way to validate this. | |
606 | */ | |
607 | if (!*rs[i].src) | |
608 | ; /* empty is ok */ | |
609 | else if (is_glob) { | |
47c6ef1c | 610 | st = verify_refname(rs[i].src, is_glob); |
46220ca1 JH |
611 | if (st && st != CHECK_REF_FORMAT_ONELEVEL) |
612 | goto invalid; | |
613 | } | |
614 | else | |
615 | ; /* anything goes, for now */ | |
616 | /* | |
617 | * RHS | |
618 | * - missing is allowed, but LHS then must be a | |
619 | * valid looking ref. | |
620 | * - empty is not allowed. | |
621 | * - otherwise it must be a valid looking ref. | |
622 | */ | |
623 | if (!rs[i].dst) { | |
47c6ef1c | 624 | st = verify_refname(rs[i].src, is_glob); |
46220ca1 JH |
625 | if (st && st != CHECK_REF_FORMAT_ONELEVEL) |
626 | goto invalid; | |
627 | } else if (!*rs[i].dst) { | |
628 | goto invalid; | |
629 | } else { | |
47c6ef1c | 630 | st = verify_refname(rs[i].dst, is_glob); |
46220ca1 JH |
631 | if (st && st != CHECK_REF_FORMAT_ONELEVEL) |
632 | goto invalid; | |
633 | } | |
ef00d150 | 634 | } |
6b62816c DB |
635 | } |
636 | return rs; | |
46220ca1 JH |
637 | |
638 | invalid: | |
24b6177e | 639 | if (verify) { |
2cb1f36d BC |
640 | /* |
641 | * nr_refspec must be greater than zero and i must be valid | |
642 | * since it is only possible to reach this point from within | |
643 | * the for loop above. | |
644 | */ | |
645 | free_refspecs(rs, i+1); | |
24b6177e JF |
646 | return NULL; |
647 | } | |
46220ca1 JH |
648 | die("Invalid refspec '%s'", refspec[i]); |
649 | } | |
650 | ||
24b6177e JF |
651 | int valid_fetch_refspec(const char *fetch_refspec_str) |
652 | { | |
653 | const char *fetch_refspec[] = { fetch_refspec_str }; | |
654 | struct refspec *refspec; | |
655 | ||
656 | refspec = parse_refspec_internal(1, fetch_refspec, 1, 1); | |
2cb1f36d | 657 | free_refspecs(refspec, 1); |
24b6177e JF |
658 | return !!refspec; |
659 | } | |
660 | ||
46220ca1 JH |
661 | struct refspec *parse_fetch_refspec(int nr_refspec, const char **refspec) |
662 | { | |
24b6177e | 663 | return parse_refspec_internal(nr_refspec, refspec, 1, 0); |
46220ca1 JH |
664 | } |
665 | ||
697d7f5d | 666 | static struct refspec *parse_push_refspec(int nr_refspec, const char **refspec) |
46220ca1 | 667 | { |
24b6177e | 668 | return parse_refspec_internal(nr_refspec, refspec, 0, 0); |
6b62816c DB |
669 | } |
670 | ||
df93e33c DB |
671 | static int valid_remote_nick(const char *name) |
672 | { | |
8ca12c0d | 673 | if (!name[0] || is_dot_or_dotdot(name)) |
df93e33c DB |
674 | return 0; |
675 | return !strchr(name, '/'); /* no slash */ | |
676 | } | |
677 | ||
5751f490 DB |
678 | struct remote *remote_get(const char *name) |
679 | { | |
680 | struct remote *ret; | |
fa685bdf | 681 | int name_given = 0; |
5751f490 DB |
682 | |
683 | read_config(); | |
fa685bdf DB |
684 | if (name) |
685 | name_given = 1; | |
686 | else { | |
5751f490 | 687 | name = default_remote_name; |
fa685bdf DB |
688 | name_given = explicit_default_remote_name; |
689 | } | |
9326d494 | 690 | |
5751f490 | 691 | ret = make_remote(name, 0); |
df93e33c | 692 | if (valid_remote_nick(name)) { |
28b91f8a | 693 | if (!ret->url) |
5751f490 | 694 | read_remotes_file(ret); |
28b91f8a | 695 | if (!ret->url) |
5751f490 DB |
696 | read_branches_file(ret); |
697 | } | |
9326d494 | 698 | if (name_given && !ret->url) |
55029ae4 | 699 | add_url_alias(ret, name); |
28b91f8a | 700 | if (!ret->url) |
5751f490 | 701 | return NULL; |
46220ca1 JH |
702 | ret->fetch = parse_fetch_refspec(ret->fetch_refspec_nr, ret->fetch_refspec); |
703 | ret->push = parse_push_refspec(ret->push_refspec_nr, ret->push_refspec); | |
5751f490 DB |
704 | return ret; |
705 | } | |
6b62816c | 706 | |
9a23ba33 FAG |
707 | int remote_is_configured(const char *name) |
708 | { | |
709 | int i; | |
710 | read_config(); | |
711 | ||
712 | for (i = 0; i < remotes_nr; i++) | |
713 | if (!strcmp(name, remotes[i]->name)) | |
714 | return 1; | |
715 | return 0; | |
716 | } | |
717 | ||
b42f6927 JS |
718 | int for_each_remote(each_remote_fn fn, void *priv) |
719 | { | |
720 | int i, result = 0; | |
721 | read_config(); | |
2d31347b | 722 | for (i = 0; i < remotes_nr && !result; i++) { |
b42f6927 JS |
723 | struct remote *r = remotes[i]; |
724 | if (!r) | |
725 | continue; | |
726 | if (!r->fetch) | |
46220ca1 JH |
727 | r->fetch = parse_fetch_refspec(r->fetch_refspec_nr, |
728 | r->fetch_refspec); | |
b42f6927 | 729 | if (!r->push) |
46220ca1 JH |
730 | r->push = parse_push_refspec(r->push_refspec_nr, |
731 | r->push_refspec); | |
b42f6927 JS |
732 | result = fn(r, priv); |
733 | } | |
734 | return result; | |
735 | } | |
736 | ||
2467a4fa DB |
737 | void ref_remove_duplicates(struct ref *ref_map) |
738 | { | |
73cf0822 JP |
739 | struct string_list refs = { NULL, 0, 0, 0 }; |
740 | struct string_list_item *item = NULL; | |
741 | struct ref *prev = NULL, *next = NULL; | |
742 | for (; ref_map; prev = ref_map, ref_map = next) { | |
743 | next = ref_map->next; | |
2467a4fa DB |
744 | if (!ref_map->peer_ref) |
745 | continue; | |
73cf0822 JP |
746 | |
747 | item = string_list_lookup(ref_map->peer_ref->name, &refs); | |
748 | if (item) { | |
749 | if (strcmp(((struct ref *)item->util)->name, | |
750 | ref_map->name)) | |
751 | die("%s tracks both %s and %s", | |
752 | ref_map->peer_ref->name, | |
753 | ((struct ref *)item->util)->name, | |
754 | ref_map->name); | |
755 | prev->next = ref_map->next; | |
756 | free(ref_map->peer_ref); | |
757 | free(ref_map); | |
95c96d48 JP |
758 | ref_map = prev; /* skip this; we freed it */ |
759 | continue; | |
2467a4fa | 760 | } |
73cf0822 JP |
761 | |
762 | item = string_list_insert(ref_map->peer_ref->name, &refs); | |
763 | item->util = ref_map; | |
2467a4fa | 764 | } |
73cf0822 | 765 | string_list_clear(&refs, 0); |
2467a4fa DB |
766 | } |
767 | ||
28b91f8a | 768 | int remote_has_url(struct remote *remote, const char *url) |
5d46c9d4 DB |
769 | { |
770 | int i; | |
28b91f8a SP |
771 | for (i = 0; i < remote->url_nr; i++) { |
772 | if (!strcmp(remote->url[i], url)) | |
5d46c9d4 DB |
773 | return 1; |
774 | } | |
775 | return 0; | |
776 | } | |
777 | ||
e928213f DB |
778 | static int match_name_with_pattern(const char *key, const char *name, |
779 | const char *value, char **result) | |
a3c84239 | 780 | { |
08fbdb30 DB |
781 | const char *kstar = strchr(key, '*'); |
782 | size_t klen; | |
abd2bde7 DB |
783 | size_t ksuffixlen; |
784 | size_t namelen; | |
08fbdb30 DB |
785 | int ret; |
786 | if (!kstar) | |
787 | die("Key '%s' of pattern had no '*'", key); | |
788 | klen = kstar - key; | |
abd2bde7 DB |
789 | ksuffixlen = strlen(kstar + 1); |
790 | namelen = strlen(name); | |
791 | ret = !strncmp(name, key, klen) && namelen >= klen + ksuffixlen && | |
792 | !memcmp(name + namelen - ksuffixlen, kstar + 1, ksuffixlen); | |
e928213f | 793 | if (ret && value) { |
08fbdb30 DB |
794 | const char *vstar = strchr(value, '*'); |
795 | size_t vlen; | |
abd2bde7 | 796 | size_t vsuffixlen; |
08fbdb30 DB |
797 | if (!vstar) |
798 | die("Value '%s' of pattern has no '*'", value); | |
799 | vlen = vstar - value; | |
abd2bde7 DB |
800 | vsuffixlen = strlen(vstar + 1); |
801 | *result = xmalloc(vlen + vsuffixlen + | |
e928213f | 802 | strlen(name) - |
abd2bde7 DB |
803 | klen - ksuffixlen + 1); |
804 | strncpy(*result, value, vlen); | |
805 | strncpy(*result + vlen, | |
806 | name + klen, namelen - klen - ksuffixlen); | |
807 | strcpy(*result + vlen + namelen - klen - ksuffixlen, | |
808 | vstar + 1); | |
e928213f | 809 | } |
a3c84239 DB |
810 | return ret; |
811 | } | |
812 | ||
5d46c9d4 DB |
813 | int remote_find_tracking(struct remote *remote, struct refspec *refspec) |
814 | { | |
b42f6927 JS |
815 | int find_src = refspec->src == NULL; |
816 | char *needle, **result; | |
5d46c9d4 | 817 | int i; |
b42f6927 JS |
818 | |
819 | if (find_src) { | |
009c5bcd | 820 | if (!refspec->dst) |
b42f6927 JS |
821 | return error("find_tracking: need either src or dst"); |
822 | needle = refspec->dst; | |
823 | result = &refspec->src; | |
824 | } else { | |
825 | needle = refspec->src; | |
826 | result = &refspec->dst; | |
827 | } | |
828 | ||
5d46c9d4 DB |
829 | for (i = 0; i < remote->fetch_refspec_nr; i++) { |
830 | struct refspec *fetch = &remote->fetch[i]; | |
b42f6927 JS |
831 | const char *key = find_src ? fetch->dst : fetch->src; |
832 | const char *value = find_src ? fetch->src : fetch->dst; | |
5d46c9d4 DB |
833 | if (!fetch->dst) |
834 | continue; | |
835 | if (fetch->pattern) { | |
e928213f | 836 | if (match_name_with_pattern(key, needle, value, result)) { |
5d46c9d4 DB |
837 | refspec->force = fetch->force; |
838 | return 0; | |
839 | } | |
b42f6927 JS |
840 | } else if (!strcmp(needle, key)) { |
841 | *result = xstrdup(value); | |
842 | refspec->force = fetch->force; | |
843 | return 0; | |
5d46c9d4 DB |
844 | } |
845 | } | |
5d46c9d4 DB |
846 | return -1; |
847 | } | |
848 | ||
8009768e RS |
849 | static struct ref *alloc_ref_with_prefix(const char *prefix, size_t prefixlen, |
850 | const char *name) | |
851 | { | |
852 | size_t len = strlen(name); | |
853 | struct ref *ref = xcalloc(1, sizeof(struct ref) + prefixlen + len + 1); | |
854 | memcpy(ref->name, prefix, prefixlen); | |
855 | memcpy(ref->name + prefixlen, name, len); | |
856 | return ref; | |
857 | } | |
858 | ||
59c69c0c | 859 | struct ref *alloc_ref(const char *name) |
dfd255dd | 860 | { |
59c69c0c | 861 | return alloc_ref_with_prefix("", 0, name); |
737922aa KK |
862 | } |
863 | ||
4577370e | 864 | static struct ref *copy_ref(const struct ref *ref) |
d71ab174 | 865 | { |
7b3db095 JS |
866 | struct ref *cpy; |
867 | size_t len; | |
868 | if (!ref) | |
869 | return NULL; | |
870 | len = strlen(ref->name); | |
871 | cpy = xmalloc(sizeof(struct ref) + len + 1); | |
872 | memcpy(cpy, ref, sizeof(struct ref) + len + 1); | |
873 | cpy->next = NULL; | |
874 | cpy->symref = ref->symref ? xstrdup(ref->symref) : NULL; | |
875 | cpy->remote_status = ref->remote_status ? xstrdup(ref->remote_status) : NULL; | |
876 | cpy->peer_ref = copy_ref(ref->peer_ref); | |
877 | return cpy; | |
d71ab174 DB |
878 | } |
879 | ||
4577370e DB |
880 | struct ref *copy_ref_list(const struct ref *ref) |
881 | { | |
882 | struct ref *ret = NULL; | |
883 | struct ref **tail = &ret; | |
884 | while (ref) { | |
885 | *tail = copy_ref(ref); | |
886 | ref = ref->next; | |
887 | tail = &((*tail)->next); | |
888 | } | |
889 | return ret; | |
890 | } | |
891 | ||
697d7f5d | 892 | static void free_ref(struct ref *ref) |
be885d96 DB |
893 | { |
894 | if (!ref) | |
895 | return; | |
7b3db095 | 896 | free_ref(ref->peer_ref); |
be885d96 DB |
897 | free(ref->remote_status); |
898 | free(ref->symref); | |
899 | free(ref); | |
900 | } | |
901 | ||
dfd255dd DB |
902 | void free_refs(struct ref *ref) |
903 | { | |
904 | struct ref *next; | |
905 | while (ref) { | |
906 | next = ref->next; | |
be885d96 | 907 | free_ref(ref); |
dfd255dd DB |
908 | ref = next; |
909 | } | |
910 | } | |
911 | ||
6b62816c DB |
912 | static int count_refspec_match(const char *pattern, |
913 | struct ref *refs, | |
914 | struct ref **matched_ref) | |
915 | { | |
916 | int patlen = strlen(pattern); | |
917 | struct ref *matched_weak = NULL; | |
918 | struct ref *matched = NULL; | |
919 | int weak_match = 0; | |
920 | int match = 0; | |
921 | ||
922 | for (weak_match = match = 0; refs; refs = refs->next) { | |
923 | char *name = refs->name; | |
924 | int namelen = strlen(name); | |
6b62816c | 925 | |
ae36bdcf | 926 | if (!refname_match(pattern, name, ref_rev_parse_rules)) |
6b62816c DB |
927 | continue; |
928 | ||
929 | /* A match is "weak" if it is with refs outside | |
930 | * heads or tags, and did not specify the pattern | |
931 | * in full (e.g. "refs/remotes/origin/master") or at | |
932 | * least from the toplevel (e.g. "remotes/origin/master"); | |
933 | * otherwise "git push $URL master" would result in | |
934 | * ambiguity between remotes/origin/master and heads/master | |
935 | * at the remote site. | |
936 | */ | |
937 | if (namelen != patlen && | |
938 | patlen != namelen - 5 && | |
939 | prefixcmp(name, "refs/heads/") && | |
940 | prefixcmp(name, "refs/tags/")) { | |
941 | /* We want to catch the case where only weak | |
942 | * matches are found and there are multiple | |
943 | * matches, and where more than one strong | |
944 | * matches are found, as ambiguous. One | |
945 | * strong match with zero or more weak matches | |
946 | * are acceptable as a unique match. | |
947 | */ | |
948 | matched_weak = refs; | |
949 | weak_match++; | |
950 | } | |
951 | else { | |
952 | matched = refs; | |
953 | match++; | |
954 | } | |
955 | } | |
956 | if (!matched) { | |
957 | *matched_ref = matched_weak; | |
958 | return weak_match; | |
959 | } | |
960 | else { | |
961 | *matched_ref = matched; | |
962 | return match; | |
963 | } | |
964 | } | |
965 | ||
1d735267 | 966 | static void tail_link_ref(struct ref *ref, struct ref ***tail) |
6b62816c DB |
967 | { |
968 | **tail = ref; | |
1d735267 DB |
969 | while (ref->next) |
970 | ref = ref->next; | |
6b62816c | 971 | *tail = &ref->next; |
6b62816c DB |
972 | } |
973 | ||
974 | static struct ref *try_explicit_object_name(const char *name) | |
975 | { | |
976 | unsigned char sha1[20]; | |
977 | struct ref *ref; | |
6b62816c DB |
978 | |
979 | if (!*name) { | |
59c69c0c | 980 | ref = alloc_ref("(delete)"); |
6b62816c DB |
981 | hashclr(ref->new_sha1); |
982 | return ref; | |
983 | } | |
984 | if (get_sha1(name, sha1)) | |
985 | return NULL; | |
59c69c0c | 986 | ref = alloc_ref(name); |
6b62816c DB |
987 | hashcpy(ref->new_sha1, sha1); |
988 | return ref; | |
989 | } | |
990 | ||
1d735267 | 991 | static struct ref *make_linked_ref(const char *name, struct ref ***tail) |
6b62816c | 992 | { |
59c69c0c | 993 | struct ref *ret = alloc_ref(name); |
1d735267 DB |
994 | tail_link_ref(ret, tail); |
995 | return ret; | |
163f0ee5 | 996 | } |
8558fd9e | 997 | |
f8aae120 JK |
998 | static char *guess_ref(const char *name, struct ref *peer) |
999 | { | |
1000 | struct strbuf buf = STRBUF_INIT; | |
1001 | unsigned char sha1[20]; | |
1002 | ||
1003 | const char *r = resolve_ref(peer->name, sha1, 1, NULL); | |
1004 | if (!r) | |
1005 | return NULL; | |
1006 | ||
1007 | if (!prefixcmp(r, "refs/heads/")) | |
1008 | strbuf_addstr(&buf, "refs/heads/"); | |
1009 | else if (!prefixcmp(r, "refs/tags/")) | |
1010 | strbuf_addstr(&buf, "refs/tags/"); | |
1011 | else | |
1012 | return NULL; | |
1013 | ||
1014 | strbuf_addstr(&buf, name); | |
1015 | return strbuf_detach(&buf, NULL); | |
1016 | } | |
1017 | ||
54a8ad92 JH |
1018 | static int match_explicit(struct ref *src, struct ref *dst, |
1019 | struct ref ***dst_tail, | |
9a7bbd1d | 1020 | struct refspec *rs) |
6b62816c | 1021 | { |
54a8ad92 | 1022 | struct ref *matched_src, *matched_dst; |
cdf690e5 | 1023 | int copy_src; |
8558fd9e | 1024 | |
54a8ad92 | 1025 | const char *dst_value = rs->dst; |
f8aae120 | 1026 | char *dst_guess; |
6b62816c | 1027 | |
a83619d6 | 1028 | if (rs->pattern || rs->matching) |
9a7bbd1d | 1029 | return 0; |
8558fd9e | 1030 | |
54a8ad92 JH |
1031 | matched_src = matched_dst = NULL; |
1032 | switch (count_refspec_match(rs->src, src, &matched_src)) { | |
1033 | case 1: | |
cdf690e5 | 1034 | copy_src = 1; |
54a8ad92 JH |
1035 | break; |
1036 | case 0: | |
1037 | /* The source could be in the get_sha1() format | |
1038 | * not a reference name. :refs/other is a | |
1039 | * way to delete 'other' ref at the remote end. | |
1040 | */ | |
1041 | matched_src = try_explicit_object_name(rs->src); | |
7dfee372 | 1042 | if (!matched_src) |
9a7bbd1d | 1043 | return error("src refspec %s does not match any.", rs->src); |
cdf690e5 | 1044 | copy_src = 0; |
54a8ad92 JH |
1045 | break; |
1046 | default: | |
9a7bbd1d | 1047 | return error("src refspec %s matches more than one.", rs->src); |
54a8ad92 | 1048 | } |
3c8b7df1 | 1049 | |
4491e62a | 1050 | if (!dst_value) { |
9f0ea7e8 DB |
1051 | unsigned char sha1[20]; |
1052 | int flag; | |
1053 | ||
9f0ea7e8 DB |
1054 | dst_value = resolve_ref(matched_src->name, sha1, 1, &flag); |
1055 | if (!dst_value || | |
1056 | ((flag & REF_ISSYMREF) && | |
1057 | prefixcmp(dst_value, "refs/heads/"))) | |
1058 | die("%s cannot be resolved to branch.", | |
1059 | matched_src->name); | |
4491e62a | 1060 | } |
3c8b7df1 | 1061 | |
54a8ad92 JH |
1062 | switch (count_refspec_match(dst_value, dst, &matched_dst)) { |
1063 | case 1: | |
1064 | break; | |
1065 | case 0: | |
163f0ee5 | 1066 | if (!memcmp(dst_value, "refs/", 5)) |
1d735267 | 1067 | matched_dst = make_linked_ref(dst_value, dst_tail); |
eeefa7c9 | 1068 | else if ((dst_guess = guess_ref(dst_value, matched_src))) |
f8aae120 | 1069 | matched_dst = make_linked_ref(dst_guess, dst_tail); |
3c8b7df1 | 1070 | else |
f8aae120 JK |
1071 | error("unable to push to unqualified destination: %s\n" |
1072 | "The destination refspec neither matches an " | |
1073 | "existing ref on the remote nor\n" | |
1074 | "begins with refs/, and we are unable to " | |
1075 | "guess a prefix based on the source ref.", | |
1076 | dst_value); | |
54a8ad92 JH |
1077 | break; |
1078 | default: | |
3c8b7df1 | 1079 | matched_dst = NULL; |
54a8ad92 JH |
1080 | error("dst refspec %s matches more than one.", |
1081 | dst_value); | |
1082 | break; | |
1083 | } | |
9a7bbd1d JK |
1084 | if (!matched_dst) |
1085 | return -1; | |
1086 | if (matched_dst->peer_ref) | |
1087 | return error("dst ref %s receives from more than one src.", | |
54a8ad92 | 1088 | matched_dst->name); |
54a8ad92 | 1089 | else { |
cdf690e5 | 1090 | matched_dst->peer_ref = copy_src ? copy_ref(matched_src) : matched_src; |
54a8ad92 | 1091 | matched_dst->force = rs->force; |
6b62816c | 1092 | } |
9a7bbd1d | 1093 | return 0; |
54a8ad92 JH |
1094 | } |
1095 | ||
1096 | static int match_explicit_refs(struct ref *src, struct ref *dst, | |
1097 | struct ref ***dst_tail, struct refspec *rs, | |
1098 | int rs_nr) | |
1099 | { | |
1100 | int i, errs; | |
1101 | for (i = errs = 0; i < rs_nr; i++) | |
9a7bbd1d JK |
1102 | errs += match_explicit(src, dst, dst_tail, &rs[i]); |
1103 | return errs; | |
6b62816c DB |
1104 | } |
1105 | ||
6e66bf3c AR |
1106 | static const struct refspec *check_pattern_match(const struct refspec *rs, |
1107 | int rs_nr, | |
1108 | const struct ref *src) | |
8558fd9e DB |
1109 | { |
1110 | int i; | |
a83619d6 | 1111 | int matching_refs = -1; |
8558fd9e | 1112 | for (i = 0; i < rs_nr; i++) { |
a83619d6 PB |
1113 | if (rs[i].matching && |
1114 | (matching_refs == -1 || rs[i].force)) { | |
1115 | matching_refs = i; | |
1116 | continue; | |
1117 | } | |
1118 | ||
e928213f DB |
1119 | if (rs[i].pattern && match_name_with_pattern(rs[i].src, src->name, |
1120 | NULL, NULL)) | |
6e66bf3c | 1121 | return rs + i; |
8558fd9e | 1122 | } |
a83619d6 PB |
1123 | if (matching_refs != -1) |
1124 | return rs + matching_refs; | |
1125 | else | |
1126 | return NULL; | |
8558fd9e DB |
1127 | } |
1128 | ||
6d2bf96e CB |
1129 | static struct ref **tail_ref(struct ref **head) |
1130 | { | |
1131 | struct ref **tail = head; | |
1132 | while (*tail) | |
1133 | tail = &((*tail)->next); | |
1134 | return tail; | |
1135 | } | |
1136 | ||
54a8ad92 JH |
1137 | /* |
1138 | * Note. This is used only by "push"; refspec matching rules for | |
1139 | * push and fetch are subtly different, so do not try to reuse it | |
1140 | * without thinking. | |
1141 | */ | |
6d2bf96e | 1142 | int match_refs(struct ref *src, struct ref **dst, |
28b9d6e5 | 1143 | int nr_refspec, const char **refspec, int flags) |
6b62816c | 1144 | { |
a83619d6 | 1145 | struct refspec *rs; |
28b9d6e5 AW |
1146 | int send_all = flags & MATCH_REFS_ALL; |
1147 | int send_mirror = flags & MATCH_REFS_MIRROR; | |
5f48cb95 | 1148 | int errs; |
2af202be | 1149 | static const char *default_refspec[] = { ":", NULL }; |
6d2bf96e | 1150 | struct ref **dst_tail = tail_ref(dst); |
6b62816c | 1151 | |
a83619d6 PB |
1152 | if (!nr_refspec) { |
1153 | nr_refspec = 1; | |
1154 | refspec = default_refspec; | |
1155 | } | |
1156 | rs = parse_push_refspec(nr_refspec, (const char **) refspec); | |
6d2bf96e | 1157 | errs = match_explicit_refs(src, *dst, &dst_tail, rs, nr_refspec); |
6b62816c DB |
1158 | |
1159 | /* pick the remainder */ | |
1160 | for ( ; src; src = src->next) { | |
1161 | struct ref *dst_peer; | |
6e66bf3c AR |
1162 | const struct refspec *pat = NULL; |
1163 | char *dst_name; | |
6b62816c DB |
1164 | if (src->peer_ref) |
1165 | continue; | |
a83619d6 PB |
1166 | |
1167 | pat = check_pattern_match(rs, nr_refspec, src); | |
1168 | if (!pat) | |
1169 | continue; | |
1170 | ||
1171 | if (pat->matching) { | |
098e711e JH |
1172 | /* |
1173 | * "matching refs"; traditionally we pushed everything | |
1174 | * including refs outside refs/heads/ hierarchy, but | |
1175 | * that does not make much sense these days. | |
1176 | */ | |
a83619d6 PB |
1177 | if (!send_mirror && prefixcmp(src->name, "refs/heads/")) |
1178 | continue; | |
1179 | dst_name = xstrdup(src->name); | |
8558fd9e | 1180 | |
a83619d6 | 1181 | } else { |
efd8f793 | 1182 | const char *dst_side = pat->dst ? pat->dst : pat->src; |
e928213f DB |
1183 | if (!match_name_with_pattern(pat->src, src->name, |
1184 | dst_side, &dst_name)) | |
1185 | die("Didn't think it matches any more"); | |
a83619d6 | 1186 | } |
6d2bf96e | 1187 | dst_peer = find_ref_by_name(*dst, dst_name); |
a83619d6 PB |
1188 | if (dst_peer) { |
1189 | if (dst_peer->peer_ref) | |
1190 | /* We're already sending something to this ref. */ | |
1191 | goto free_name; | |
1192 | ||
1193 | } else { | |
1194 | if (pat->matching && !(send_all || send_mirror)) | |
1195 | /* | |
1196 | * Remote doesn't have it, and we have no | |
1197 | * explicit pattern, and we don't have | |
1198 | * --all nor --mirror. | |
1199 | */ | |
1200 | goto free_name; | |
28b9d6e5 | 1201 | |
6b62816c | 1202 | /* Create a new one and link it */ |
6d2bf96e | 1203 | dst_peer = make_linked_ref(dst_name, &dst_tail); |
6b62816c | 1204 | hashcpy(dst_peer->new_sha1, src->new_sha1); |
6b62816c | 1205 | } |
cdf690e5 | 1206 | dst_peer->peer_ref = copy_ref(src); |
a83619d6 | 1207 | dst_peer->force = pat->force; |
6e66bf3c AR |
1208 | free_name: |
1209 | free(dst_name); | |
6b62816c | 1210 | } |
5f48cb95 JS |
1211 | if (errs) |
1212 | return -1; | |
6b62816c DB |
1213 | return 0; |
1214 | } | |
cf818348 DB |
1215 | |
1216 | struct branch *branch_get(const char *name) | |
1217 | { | |
1218 | struct branch *ret; | |
1219 | ||
1220 | read_config(); | |
1221 | if (!name || !*name || !strcmp(name, "HEAD")) | |
1222 | ret = current_branch; | |
1223 | else | |
1224 | ret = make_branch(name, 0); | |
1225 | if (ret && ret->remote_name) { | |
1226 | ret->remote = remote_get(ret->remote_name); | |
1227 | if (ret->merge_nr) { | |
1228 | int i; | |
1229 | ret->merge = xcalloc(sizeof(*ret->merge), | |
1230 | ret->merge_nr); | |
1231 | for (i = 0; i < ret->merge_nr; i++) { | |
1232 | ret->merge[i] = xcalloc(1, sizeof(**ret->merge)); | |
1233 | ret->merge[i]->src = xstrdup(ret->merge_name[i]); | |
5e6e2b48 MG |
1234 | if (remote_find_tracking(ret->remote, ret->merge[i]) |
1235 | && !strcmp(ret->remote_name, ".")) | |
1236 | ret->merge[i]->dst = xstrdup(ret->merge_name[i]); | |
cf818348 DB |
1237 | } |
1238 | } | |
1239 | } | |
1240 | return ret; | |
1241 | } | |
1242 | ||
1243 | int branch_has_merge_config(struct branch *branch) | |
1244 | { | |
1245 | return branch && !!branch->merge; | |
1246 | } | |
1247 | ||
85682c19 SP |
1248 | int branch_merge_matches(struct branch *branch, |
1249 | int i, | |
1250 | const char *refname) | |
cf818348 | 1251 | { |
85682c19 | 1252 | if (!branch || i < 0 || i >= branch->merge_nr) |
cf818348 | 1253 | return 0; |
605b4978 | 1254 | return refname_match(branch->merge[i]->src, refname, ref_fetch_rules); |
cf818348 | 1255 | } |
d71ab174 | 1256 | |
4577370e | 1257 | static struct ref *get_expanded_map(const struct ref *remote_refs, |
d71ab174 DB |
1258 | const struct refspec *refspec) |
1259 | { | |
4577370e | 1260 | const struct ref *ref; |
d71ab174 DB |
1261 | struct ref *ret = NULL; |
1262 | struct ref **tail = &ret; | |
1263 | ||
e928213f | 1264 | char *expn_name; |
d71ab174 DB |
1265 | |
1266 | for (ref = remote_refs; ref; ref = ref->next) { | |
1267 | if (strchr(ref->name, '^')) | |
1268 | continue; /* a dereference item */ | |
e928213f DB |
1269 | if (match_name_with_pattern(refspec->src, ref->name, |
1270 | refspec->dst, &expn_name)) { | |
d71ab174 | 1271 | struct ref *cpy = copy_ref(ref); |
d71ab174 | 1272 | |
e928213f DB |
1273 | cpy->peer_ref = alloc_ref(expn_name); |
1274 | free(expn_name); | |
d71ab174 DB |
1275 | if (refspec->force) |
1276 | cpy->peer_ref->force = 1; | |
1277 | *tail = cpy; | |
1278 | tail = &cpy->next; | |
1279 | } | |
1280 | } | |
1281 | ||
1282 | return ret; | |
1283 | } | |
1284 | ||
4577370e | 1285 | static const struct ref *find_ref_by_name_abbrev(const struct ref *refs, const char *name) |
d71ab174 | 1286 | { |
4577370e | 1287 | const struct ref *ref; |
d71ab174 | 1288 | for (ref = refs; ref; ref = ref->next) { |
605b4978 | 1289 | if (refname_match(name, ref->name, ref_fetch_rules)) |
d71ab174 DB |
1290 | return ref; |
1291 | } | |
1292 | return NULL; | |
1293 | } | |
1294 | ||
4577370e | 1295 | struct ref *get_remote_ref(const struct ref *remote_refs, const char *name) |
d71ab174 | 1296 | { |
4577370e | 1297 | const struct ref *ref = find_ref_by_name_abbrev(remote_refs, name); |
d71ab174 DB |
1298 | |
1299 | if (!ref) | |
9ad7c5ae | 1300 | return NULL; |
d71ab174 DB |
1301 | |
1302 | return copy_ref(ref); | |
1303 | } | |
1304 | ||
1305 | static struct ref *get_local_ref(const char *name) | |
1306 | { | |
3eb96997 | 1307 | if (!name || name[0] == '\0') |
d71ab174 DB |
1308 | return NULL; |
1309 | ||
59c69c0c RS |
1310 | if (!prefixcmp(name, "refs/")) |
1311 | return alloc_ref(name); | |
d71ab174 DB |
1312 | |
1313 | if (!prefixcmp(name, "heads/") || | |
1314 | !prefixcmp(name, "tags/") || | |
8009768e RS |
1315 | !prefixcmp(name, "remotes/")) |
1316 | return alloc_ref_with_prefix("refs/", 5, name); | |
d71ab174 | 1317 | |
8009768e | 1318 | return alloc_ref_with_prefix("refs/heads/", 11, name); |
d71ab174 DB |
1319 | } |
1320 | ||
4577370e | 1321 | int get_fetch_map(const struct ref *remote_refs, |
d71ab174 | 1322 | const struct refspec *refspec, |
9ad7c5ae JH |
1323 | struct ref ***tail, |
1324 | int missing_ok) | |
d71ab174 | 1325 | { |
ef00d150 | 1326 | struct ref *ref_map, **rmp; |
d71ab174 DB |
1327 | |
1328 | if (refspec->pattern) { | |
1329 | ref_map = get_expanded_map(remote_refs, refspec); | |
1330 | } else { | |
9ad7c5ae JH |
1331 | const char *name = refspec->src[0] ? refspec->src : "HEAD"; |
1332 | ||
1333 | ref_map = get_remote_ref(remote_refs, name); | |
1334 | if (!missing_ok && !ref_map) | |
1335 | die("Couldn't find remote ref %s", name); | |
1336 | if (ref_map) { | |
1337 | ref_map->peer_ref = get_local_ref(refspec->dst); | |
1338 | if (ref_map->peer_ref && refspec->force) | |
1339 | ref_map->peer_ref->force = 1; | |
1340 | } | |
d71ab174 DB |
1341 | } |
1342 | ||
ef00d150 DB |
1343 | for (rmp = &ref_map; *rmp; ) { |
1344 | if ((*rmp)->peer_ref) { | |
1345 | int st = check_ref_format((*rmp)->peer_ref->name + 5); | |
1346 | if (st && st != CHECK_REF_FORMAT_ONELEVEL) { | |
1347 | struct ref *ignore = *rmp; | |
1348 | error("* Ignoring funny ref '%s' locally", | |
1349 | (*rmp)->peer_ref->name); | |
1350 | *rmp = (*rmp)->next; | |
1351 | free(ignore->peer_ref); | |
1352 | free(ignore); | |
1353 | continue; | |
1354 | } | |
1355 | } | |
1356 | rmp = &((*rmp)->next); | |
d71ab174 DB |
1357 | } |
1358 | ||
8f70a765 AR |
1359 | if (ref_map) |
1360 | tail_link_ref(ref_map, tail); | |
d71ab174 DB |
1361 | |
1362 | return 0; | |
1363 | } | |
be885d96 DB |
1364 | |
1365 | int resolve_remote_symref(struct ref *ref, struct ref *list) | |
1366 | { | |
1367 | if (!ref->symref) | |
1368 | return 0; | |
1369 | for (; list; list = list->next) | |
1370 | if (!strcmp(ref->symref, list->name)) { | |
1371 | hashcpy(ref->old_sha1, list->old_sha1); | |
1372 | return 0; | |
1373 | } | |
1374 | return 1; | |
1375 | } | |
6d21bf96 | 1376 | |
ec8452d5 JS |
1377 | static void unmark_and_free(struct commit_list *list, unsigned int mark) |
1378 | { | |
1379 | while (list) { | |
1380 | struct commit_list *temp = list; | |
1381 | temp->item->object.flags &= ~mark; | |
1382 | list = temp->next; | |
1383 | free(temp); | |
1384 | } | |
1385 | } | |
1386 | ||
1387 | int ref_newer(const unsigned char *new_sha1, const unsigned char *old_sha1) | |
1388 | { | |
1389 | struct object *o; | |
1390 | struct commit *old, *new; | |
1391 | struct commit_list *list, *used; | |
1392 | int found = 0; | |
1393 | ||
1394 | /* Both new and old must be commit-ish and new is descendant of | |
1395 | * old. Otherwise we require --force. | |
1396 | */ | |
1397 | o = deref_tag(parse_object(old_sha1), NULL, 0); | |
1398 | if (!o || o->type != OBJ_COMMIT) | |
1399 | return 0; | |
1400 | old = (struct commit *) o; | |
1401 | ||
1402 | o = deref_tag(parse_object(new_sha1), NULL, 0); | |
1403 | if (!o || o->type != OBJ_COMMIT) | |
1404 | return 0; | |
1405 | new = (struct commit *) o; | |
1406 | ||
1407 | if (parse_commit(new) < 0) | |
1408 | return 0; | |
1409 | ||
1410 | used = list = NULL; | |
1411 | commit_list_insert(new, &list); | |
1412 | while (list) { | |
1413 | new = pop_most_recent_commit(&list, TMP_MARK); | |
1414 | commit_list_insert(new, &used); | |
1415 | if (new == old) { | |
1416 | found = 1; | |
1417 | break; | |
1418 | } | |
1419 | } | |
1420 | unmark_and_free(list, TMP_MARK); | |
1421 | unmark_and_free(used, TMP_MARK); | |
1422 | return found; | |
1423 | } | |
1424 | ||
6d21bf96 JH |
1425 | /* |
1426 | * Return true if there is anything to report, otherwise false. | |
1427 | */ | |
1428 | int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs) | |
1429 | { | |
1430 | unsigned char sha1[20]; | |
1431 | struct commit *ours, *theirs; | |
1432 | char symmetric[84]; | |
1433 | struct rev_info revs; | |
1434 | const char *rev_argv[10], *base; | |
1435 | int rev_argc; | |
1436 | ||
1437 | /* | |
1438 | * Nothing to report unless we are marked to build on top of | |
1439 | * somebody else. | |
1440 | */ | |
1441 | if (!branch || | |
1442 | !branch->merge || !branch->merge[0] || !branch->merge[0]->dst) | |
1443 | return 0; | |
1444 | ||
1445 | /* | |
1446 | * If what we used to build on no longer exists, there is | |
1447 | * nothing to report. | |
1448 | */ | |
1449 | base = branch->merge[0]->dst; | |
1450 | if (!resolve_ref(base, sha1, 1, NULL)) | |
1451 | return 0; | |
57ffc5f8 | 1452 | theirs = lookup_commit_reference(sha1); |
6d21bf96 JH |
1453 | if (!theirs) |
1454 | return 0; | |
1455 | ||
1456 | if (!resolve_ref(branch->refname, sha1, 1, NULL)) | |
1457 | return 0; | |
57ffc5f8 | 1458 | ours = lookup_commit_reference(sha1); |
6d21bf96 JH |
1459 | if (!ours) |
1460 | return 0; | |
1461 | ||
1462 | /* are we the same? */ | |
1463 | if (theirs == ours) | |
1464 | return 0; | |
1465 | ||
8fbf879e | 1466 | /* Run "rev-list --left-right ours...theirs" internally... */ |
6d21bf96 JH |
1467 | rev_argc = 0; |
1468 | rev_argv[rev_argc++] = NULL; | |
1469 | rev_argv[rev_argc++] = "--left-right"; | |
1470 | rev_argv[rev_argc++] = symmetric; | |
1471 | rev_argv[rev_argc++] = "--"; | |
1472 | rev_argv[rev_argc] = NULL; | |
1473 | ||
1474 | strcpy(symmetric, sha1_to_hex(ours->object.sha1)); | |
1475 | strcpy(symmetric + 40, "..."); | |
1476 | strcpy(symmetric + 43, sha1_to_hex(theirs->object.sha1)); | |
1477 | ||
1478 | init_revisions(&revs, NULL); | |
1479 | setup_revisions(rev_argc, rev_argv, &revs, NULL); | |
1480 | prepare_revision_walk(&revs); | |
1481 | ||
1482 | /* ... and count the commits on each side. */ | |
1483 | *num_ours = 0; | |
1484 | *num_theirs = 0; | |
1485 | while (1) { | |
1486 | struct commit *c = get_revision(&revs); | |
1487 | if (!c) | |
1488 | break; | |
1489 | if (c->object.flags & SYMMETRIC_LEFT) | |
1490 | (*num_ours)++; | |
1491 | else | |
1492 | (*num_theirs)++; | |
1493 | } | |
c0234b2e JH |
1494 | |
1495 | /* clear object flags smudged by the above traversal */ | |
1496 | clear_commit_marks(ours, ALL_REV_FLAGS); | |
1497 | clear_commit_marks(theirs, ALL_REV_FLAGS); | |
6d21bf96 JH |
1498 | return 1; |
1499 | } | |
1500 | ||
1501 | /* | |
1502 | * Return true when there is anything to report, otherwise false. | |
1503 | */ | |
1504 | int format_tracking_info(struct branch *branch, struct strbuf *sb) | |
1505 | { | |
1506 | int num_ours, num_theirs; | |
4de53ce0 | 1507 | const char *base; |
6d21bf96 JH |
1508 | |
1509 | if (!stat_tracking_info(branch, &num_ours, &num_theirs)) | |
1510 | return 0; | |
1511 | ||
1512 | base = branch->merge[0]->dst; | |
45972ffb | 1513 | base = shorten_unambiguous_ref(base, 0); |
6d21bf96 | 1514 | if (!num_theirs) |
4de53ce0 | 1515 | strbuf_addf(sb, "Your branch is ahead of '%s' " |
6d21bf96 | 1516 | "by %d commit%s.\n", |
4de53ce0 | 1517 | base, num_ours, (num_ours == 1) ? "" : "s"); |
6d21bf96 | 1518 | else if (!num_ours) |
4de53ce0 AP |
1519 | strbuf_addf(sb, "Your branch is behind '%s' " |
1520 | "by %d commit%s, " | |
6d21bf96 | 1521 | "and can be fast-forwarded.\n", |
4de53ce0 | 1522 | base, num_theirs, (num_theirs == 1) ? "" : "s"); |
6d21bf96 | 1523 | else |
4de53ce0 AP |
1524 | strbuf_addf(sb, "Your branch and '%s' have diverged,\n" |
1525 | "and have %d and %d different commit(s) each, " | |
1526 | "respectively.\n", | |
1527 | base, num_ours, num_theirs); | |
6d21bf96 JH |
1528 | return 1; |
1529 | } | |
454e2025 JS |
1530 | |
1531 | static int one_local_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) | |
1532 | { | |
1533 | struct ref ***local_tail = cb_data; | |
1534 | struct ref *ref; | |
1535 | int len; | |
1536 | ||
1537 | /* we already know it starts with refs/ to get here */ | |
1538 | if (check_ref_format(refname + 5)) | |
1539 | return 0; | |
1540 | ||
1541 | len = strlen(refname) + 1; | |
1542 | ref = xcalloc(1, sizeof(*ref) + len); | |
1543 | hashcpy(ref->new_sha1, sha1); | |
1544 | memcpy(ref->name, refname, len); | |
1545 | **local_tail = ref; | |
1546 | *local_tail = &ref->next; | |
1547 | return 0; | |
1548 | } | |
1549 | ||
1550 | struct ref *get_local_heads(void) | |
1551 | { | |
55f0566f | 1552 | struct ref *local_refs = NULL, **local_tail = &local_refs; |
454e2025 JS |
1553 | for_each_ref(one_local_ref, &local_tail); |
1554 | return local_refs; | |
1555 | } | |
8ef51733 | 1556 | |
4229f1fa JS |
1557 | struct ref *guess_remote_head(const struct ref *head, |
1558 | const struct ref *refs, | |
1559 | int all) | |
8ef51733 | 1560 | { |
8ef51733 | 1561 | const struct ref *r; |
4229f1fa JS |
1562 | struct ref *list = NULL; |
1563 | struct ref **tail = &list; | |
8ef51733 | 1564 | |
6cb4e6cc | 1565 | if (!head) |
8ef51733 JS |
1566 | return NULL; |
1567 | ||
fbb074c2 JK |
1568 | /* |
1569 | * Some transports support directly peeking at | |
1570 | * where HEAD points; if that is the case, then | |
1571 | * we don't have to guess. | |
1572 | */ | |
1573 | if (head->symref) | |
1574 | return copy_ref(find_ref_by_name(refs, head->symref)); | |
1575 | ||
8ef51733 | 1576 | /* If refs/heads/master could be right, it is. */ |
4229f1fa JS |
1577 | if (!all) { |
1578 | r = find_ref_by_name(refs, "refs/heads/master"); | |
1579 | if (r && !hashcmp(r->old_sha1, head->old_sha1)) | |
1580 | return copy_ref(r); | |
1581 | } | |
8ef51733 JS |
1582 | |
1583 | /* Look for another ref that points there */ | |
4229f1fa JS |
1584 | for (r = refs; r; r = r->next) { |
1585 | if (r != head && !hashcmp(r->old_sha1, head->old_sha1)) { | |
1586 | *tail = copy_ref(r); | |
1587 | tail = &((*tail)->next); | |
1588 | if (!all) | |
1589 | break; | |
1590 | } | |
1591 | } | |
8ef51733 | 1592 | |
4229f1fa | 1593 | return list; |
8ef51733 | 1594 | } |
f2ef6075 JS |
1595 | |
1596 | struct stale_heads_info { | |
1597 | struct remote *remote; | |
1598 | struct string_list *ref_names; | |
1599 | struct ref **stale_refs_tail; | |
1600 | }; | |
1601 | ||
1602 | static int get_stale_heads_cb(const char *refname, | |
1603 | const unsigned char *sha1, int flags, void *cb_data) | |
1604 | { | |
1605 | struct stale_heads_info *info = cb_data; | |
1606 | struct refspec refspec; | |
1607 | memset(&refspec, 0, sizeof(refspec)); | |
1608 | refspec.dst = (char *)refname; | |
1609 | if (!remote_find_tracking(info->remote, &refspec)) { | |
1610 | if (!((flags & REF_ISSYMREF) || | |
1611 | string_list_has_string(info->ref_names, refspec.src))) { | |
1612 | struct ref *ref = make_linked_ref(refname, &info->stale_refs_tail); | |
1613 | hashcpy(ref->new_sha1, sha1); | |
1614 | } | |
1615 | } | |
1616 | return 0; | |
1617 | } | |
1618 | ||
1619 | struct ref *get_stale_heads(struct remote *remote, struct ref *fetch_map) | |
1620 | { | |
1621 | struct ref *ref, *stale_refs = NULL; | |
1622 | struct string_list ref_names = { NULL, 0, 0, 0 }; | |
1623 | struct stale_heads_info info; | |
1624 | info.remote = remote; | |
1625 | info.ref_names = &ref_names; | |
1626 | info.stale_refs_tail = &stale_refs; | |
1627 | for (ref = fetch_map; ref; ref = ref->next) | |
1628 | string_list_append(ref->name, &ref_names); | |
1629 | sort_string_list(&ref_names); | |
1630 | for_each_ref(get_stale_heads_cb, &info); | |
1631 | string_list_clear(&ref_names, 0); | |
1632 | return stale_refs; | |
1633 | } |