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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 | |
6ddba5e2 FC |
11 | enum map_direction { FROM_SRC, FROM_DST }; |
12 | ||
e0aaa29f DB |
13 | static struct refspec s_tag_refspec = { |
14 | 0, | |
15 | 1, | |
b84c343c | 16 | 0, |
08fbdb30 DB |
17 | "refs/tags/*", |
18 | "refs/tags/*" | |
e0aaa29f DB |
19 | }; |
20 | ||
21 | const struct refspec *tag_refspec = &s_tag_refspec; | |
22 | ||
844112ca JH |
23 | struct counted_string { |
24 | size_t len; | |
25 | const char *s; | |
26 | }; | |
55029ae4 DB |
27 | struct rewrite { |
28 | const char *base; | |
844112ca JH |
29 | size_t baselen; |
30 | struct counted_string *instead_of; | |
55029ae4 DB |
31 | int instead_of_nr; |
32 | int instead_of_alloc; | |
33 | }; | |
d071d942 JT |
34 | struct rewrites { |
35 | struct rewrite **rewrite; | |
36 | int rewrite_alloc; | |
37 | int rewrite_nr; | |
38 | }; | |
55029ae4 | 39 | |
5751f490 | 40 | static struct remote **remotes; |
2d31347b DB |
41 | static int remotes_alloc; |
42 | static int remotes_nr; | |
5751f490 | 43 | |
cf818348 | 44 | static struct branch **branches; |
2d31347b DB |
45 | static int branches_alloc; |
46 | static int branches_nr; | |
cf818348 DB |
47 | |
48 | static struct branch *current_branch; | |
49 | static const char *default_remote_name; | |
fa685bdf | 50 | static int explicit_default_remote_name; |
cf818348 | 51 | |
d071d942 | 52 | static struct rewrites rewrites; |
1c2eafb8 | 53 | static struct rewrites rewrites_push; |
55029ae4 | 54 | |
5751f490 DB |
55 | #define BUF_SIZE (2048) |
56 | static char buffer[BUF_SIZE]; | |
57 | ||
0a4da29d DB |
58 | static int valid_remote(const struct remote *remote) |
59 | { | |
c578f51d | 60 | return (!!remote->url) || (!!remote->foreign_vcs); |
0a4da29d DB |
61 | } |
62 | ||
d071d942 | 63 | static const char *alias_url(const char *url, struct rewrites *r) |
55029ae4 DB |
64 | { |
65 | int i, j; | |
844112ca JH |
66 | char *ret; |
67 | struct counted_string *longest; | |
68 | int longest_i; | |
69 | ||
70 | longest = NULL; | |
71 | longest_i = -1; | |
d071d942 JT |
72 | for (i = 0; i < r->rewrite_nr; i++) { |
73 | if (!r->rewrite[i]) | |
55029ae4 | 74 | continue; |
d071d942 JT |
75 | for (j = 0; j < r->rewrite[i]->instead_of_nr; j++) { |
76 | if (!prefixcmp(url, r->rewrite[i]->instead_of[j].s) && | |
844112ca | 77 | (!longest || |
d071d942 JT |
78 | longest->len < r->rewrite[i]->instead_of[j].len)) { |
79 | longest = &(r->rewrite[i]->instead_of[j]); | |
844112ca | 80 | longest_i = i; |
55029ae4 DB |
81 | } |
82 | } | |
83 | } | |
844112ca JH |
84 | if (!longest) |
85 | return url; | |
86 | ||
d071d942 | 87 | ret = xmalloc(r->rewrite[longest_i]->baselen + |
844112ca | 88 | (strlen(url) - longest->len) + 1); |
d071d942 JT |
89 | strcpy(ret, r->rewrite[longest_i]->base); |
90 | strcpy(ret + r->rewrite[longest_i]->baselen, url + longest->len); | |
844112ca | 91 | return ret; |
55029ae4 DB |
92 | } |
93 | ||
5751f490 DB |
94 | static void add_push_refspec(struct remote *remote, const char *ref) |
95 | { | |
2d31347b DB |
96 | ALLOC_GROW(remote->push_refspec, |
97 | remote->push_refspec_nr + 1, | |
98 | remote->push_refspec_alloc); | |
99 | remote->push_refspec[remote->push_refspec_nr++] = ref; | |
5751f490 DB |
100 | } |
101 | ||
5d46c9d4 DB |
102 | static void add_fetch_refspec(struct remote *remote, const char *ref) |
103 | { | |
2d31347b DB |
104 | ALLOC_GROW(remote->fetch_refspec, |
105 | remote->fetch_refspec_nr + 1, | |
106 | remote->fetch_refspec_alloc); | |
107 | remote->fetch_refspec[remote->fetch_refspec_nr++] = ref; | |
5d46c9d4 DB |
108 | } |
109 | ||
28b91f8a | 110 | static void add_url(struct remote *remote, const char *url) |
5751f490 | 111 | { |
2d31347b DB |
112 | ALLOC_GROW(remote->url, remote->url_nr + 1, remote->url_alloc); |
113 | remote->url[remote->url_nr++] = url; | |
5751f490 DB |
114 | } |
115 | ||
20346234 MG |
116 | static void add_pushurl(struct remote *remote, const char *pushurl) |
117 | { | |
118 | ALLOC_GROW(remote->pushurl, remote->pushurl_nr + 1, remote->pushurl_alloc); | |
119 | remote->pushurl[remote->pushurl_nr++] = pushurl; | |
120 | } | |
121 | ||
1c2eafb8 JT |
122 | static void add_pushurl_alias(struct remote *remote, const char *url) |
123 | { | |
124 | const char *pushurl = alias_url(url, &rewrites_push); | |
125 | if (pushurl != url) | |
126 | add_pushurl(remote, pushurl); | |
127 | } | |
128 | ||
129 | static void add_url_alias(struct remote *remote, const char *url) | |
130 | { | |
131 | add_url(remote, alias_url(url, &rewrites)); | |
132 | add_pushurl_alias(remote, url); | |
133 | } | |
134 | ||
5751f490 DB |
135 | static struct remote *make_remote(const char *name, int len) |
136 | { | |
2d31347b DB |
137 | struct remote *ret; |
138 | int i; | |
5751f490 | 139 | |
2d31347b DB |
140 | for (i = 0; i < remotes_nr; i++) { |
141 | if (len ? (!strncmp(name, remotes[i]->name, len) && | |
142 | !remotes[i]->name[len]) : | |
143 | !strcmp(name, remotes[i]->name)) | |
144 | return remotes[i]; | |
5751f490 DB |
145 | } |
146 | ||
2d31347b DB |
147 | ret = xcalloc(1, sizeof(struct remote)); |
148 | ALLOC_GROW(remotes, remotes_nr + 1, remotes_alloc); | |
149 | remotes[remotes_nr++] = ret; | |
5751f490 | 150 | if (len) |
2d31347b | 151 | ret->name = xstrndup(name, len); |
5751f490 | 152 | else |
2d31347b DB |
153 | ret->name = xstrdup(name); |
154 | return ret; | |
5751f490 DB |
155 | } |
156 | ||
cf818348 DB |
157 | static void add_merge(struct branch *branch, const char *name) |
158 | { | |
2d31347b DB |
159 | ALLOC_GROW(branch->merge_name, branch->merge_nr + 1, |
160 | branch->merge_alloc); | |
161 | branch->merge_name[branch->merge_nr++] = name; | |
cf818348 DB |
162 | } |
163 | ||
164 | static struct branch *make_branch(const char *name, int len) | |
165 | { | |
2d31347b DB |
166 | struct branch *ret; |
167 | int i; | |
cf818348 DB |
168 | char *refname; |
169 | ||
2d31347b DB |
170 | for (i = 0; i < branches_nr; i++) { |
171 | if (len ? (!strncmp(name, branches[i]->name, len) && | |
172 | !branches[i]->name[len]) : | |
173 | !strcmp(name, branches[i]->name)) | |
174 | return branches[i]; | |
cf818348 DB |
175 | } |
176 | ||
2d31347b DB |
177 | ALLOC_GROW(branches, branches_nr + 1, branches_alloc); |
178 | ret = xcalloc(1, sizeof(struct branch)); | |
179 | branches[branches_nr++] = ret; | |
cf818348 | 180 | if (len) |
2d31347b | 181 | ret->name = xstrndup(name, len); |
cf818348 | 182 | else |
2d31347b | 183 | ret->name = xstrdup(name); |
e8eec71d | 184 | refname = xmalloc(strlen(name) + strlen("refs/heads/") + 1); |
cf818348 | 185 | strcpy(refname, "refs/heads/"); |
2d31347b DB |
186 | strcpy(refname + strlen("refs/heads/"), ret->name); |
187 | ret->refname = refname; | |
cf818348 | 188 | |
2d31347b | 189 | return ret; |
cf818348 DB |
190 | } |
191 | ||
d071d942 | 192 | static struct rewrite *make_rewrite(struct rewrites *r, const char *base, int len) |
55029ae4 DB |
193 | { |
194 | struct rewrite *ret; | |
195 | int i; | |
196 | ||
d071d942 | 197 | for (i = 0; i < r->rewrite_nr; i++) { |
844112ca | 198 | if (len |
d071d942 JT |
199 | ? (len == r->rewrite[i]->baselen && |
200 | !strncmp(base, r->rewrite[i]->base, len)) | |
201 | : !strcmp(base, r->rewrite[i]->base)) | |
202 | return r->rewrite[i]; | |
55029ae4 DB |
203 | } |
204 | ||
d071d942 | 205 | ALLOC_GROW(r->rewrite, r->rewrite_nr + 1, r->rewrite_alloc); |
55029ae4 | 206 | ret = xcalloc(1, sizeof(struct rewrite)); |
d071d942 | 207 | r->rewrite[r->rewrite_nr++] = ret; |
844112ca | 208 | if (len) { |
55029ae4 | 209 | ret->base = xstrndup(base, len); |
844112ca JH |
210 | ret->baselen = len; |
211 | } | |
212 | else { | |
55029ae4 | 213 | ret->base = xstrdup(base); |
844112ca JH |
214 | ret->baselen = strlen(base); |
215 | } | |
55029ae4 DB |
216 | return ret; |
217 | } | |
218 | ||
219 | static void add_instead_of(struct rewrite *rewrite, const char *instead_of) | |
220 | { | |
221 | ALLOC_GROW(rewrite->instead_of, rewrite->instead_of_nr + 1, rewrite->instead_of_alloc); | |
844112ca JH |
222 | rewrite->instead_of[rewrite->instead_of_nr].s = instead_of; |
223 | rewrite->instead_of[rewrite->instead_of_nr].len = strlen(instead_of); | |
224 | rewrite->instead_of_nr++; | |
55029ae4 DB |
225 | } |
226 | ||
5751f490 DB |
227 | static void read_remotes_file(struct remote *remote) |
228 | { | |
229 | FILE *f = fopen(git_path("remotes/%s", remote->name), "r"); | |
230 | ||
231 | if (!f) | |
232 | return; | |
89cf4c70 | 233 | remote->origin = REMOTE_REMOTES; |
5751f490 DB |
234 | while (fgets(buffer, BUF_SIZE, f)) { |
235 | int value_list; | |
236 | char *s, *p; | |
237 | ||
238 | if (!prefixcmp(buffer, "URL:")) { | |
239 | value_list = 0; | |
240 | s = buffer + 4; | |
241 | } else if (!prefixcmp(buffer, "Push:")) { | |
242 | value_list = 1; | |
243 | s = buffer + 5; | |
5d46c9d4 DB |
244 | } else if (!prefixcmp(buffer, "Pull:")) { |
245 | value_list = 2; | |
246 | s = buffer + 5; | |
5751f490 DB |
247 | } else |
248 | continue; | |
249 | ||
250 | while (isspace(*s)) | |
251 | s++; | |
252 | if (!*s) | |
253 | continue; | |
254 | ||
255 | p = s + strlen(s); | |
256 | while (isspace(p[-1])) | |
257 | *--p = 0; | |
258 | ||
259 | switch (value_list) { | |
260 | case 0: | |
55029ae4 | 261 | add_url_alias(remote, xstrdup(s)); |
5751f490 DB |
262 | break; |
263 | case 1: | |
264 | add_push_refspec(remote, xstrdup(s)); | |
265 | break; | |
5d46c9d4 DB |
266 | case 2: |
267 | add_fetch_refspec(remote, xstrdup(s)); | |
268 | break; | |
5751f490 DB |
269 | } |
270 | } | |
271 | fclose(f); | |
272 | } | |
273 | ||
274 | static void read_branches_file(struct remote *remote) | |
275 | { | |
276 | const char *slash = strchr(remote->name, '/'); | |
cf818348 | 277 | char *frag; |
f285a2d7 | 278 | struct strbuf branch = STRBUF_INIT; |
5751f490 DB |
279 | int n = slash ? slash - remote->name : 1000; |
280 | FILE *f = fopen(git_path("branches/%.*s", n, remote->name), "r"); | |
281 | char *s, *p; | |
282 | int len; | |
283 | ||
284 | if (!f) | |
285 | return; | |
286 | s = fgets(buffer, BUF_SIZE, f); | |
287 | fclose(f); | |
288 | if (!s) | |
289 | return; | |
290 | while (isspace(*s)) | |
291 | s++; | |
292 | if (!*s) | |
293 | return; | |
89cf4c70 | 294 | remote->origin = REMOTE_BRANCHES; |
5751f490 DB |
295 | p = s + strlen(s); |
296 | while (isspace(p[-1])) | |
297 | *--p = 0; | |
298 | len = p - s; | |
299 | if (slash) | |
300 | len += strlen(slash); | |
301 | p = xmalloc(len + 1); | |
302 | strcpy(p, s); | |
303 | if (slash) | |
304 | strcat(p, slash); | |
472fa4cd DB |
305 | |
306 | /* | |
307 | * With "slash", e.g. "git fetch jgarzik/netdev-2.6" when | |
308 | * reading from $GIT_DIR/branches/jgarzik fetches "HEAD" from | |
309 | * the partial URL obtained from the branches file plus | |
310 | * "/netdev-2.6" and does not store it in any tracking ref. | |
311 | * #branch specifier in the file is ignored. | |
312 | * | |
313 | * Otherwise, the branches file would have URL and optionally | |
314 | * #branch specified. The "master" (or specified) branch is | |
315 | * fetched and stored in the local branch of the same name. | |
316 | */ | |
cf818348 DB |
317 | frag = strchr(p, '#'); |
318 | if (frag) { | |
319 | *(frag++) = '\0'; | |
472fa4cd DB |
320 | strbuf_addf(&branch, "refs/heads/%s", frag); |
321 | } else | |
322 | strbuf_addstr(&branch, "refs/heads/master"); | |
323 | if (!slash) { | |
324 | strbuf_addf(&branch, ":refs/heads/%s", remote->name); | |
cf818348 | 325 | } else { |
472fa4cd DB |
326 | strbuf_reset(&branch); |
327 | strbuf_addstr(&branch, "HEAD:"); | |
cf818348 | 328 | } |
55029ae4 | 329 | add_url_alias(remote, p); |
2af202be | 330 | add_fetch_refspec(remote, strbuf_detach(&branch, NULL)); |
18afe101 MK |
331 | /* |
332 | * Cogito compatible push: push current HEAD to remote #branch | |
333 | * (master if missing) | |
334 | */ | |
335 | strbuf_init(&branch, 0); | |
336 | strbuf_addstr(&branch, "HEAD"); | |
337 | if (frag) | |
338 | strbuf_addf(&branch, ":refs/heads/%s", frag); | |
339 | else | |
340 | strbuf_addstr(&branch, ":refs/heads/master"); | |
2af202be | 341 | add_push_refspec(remote, strbuf_detach(&branch, NULL)); |
d71ab174 | 342 | remote->fetch_tags = 1; /* always auto-follow */ |
5751f490 DB |
343 | } |
344 | ||
ef90d6d4 | 345 | static int handle_config(const char *key, const char *value, void *cb) |
5751f490 DB |
346 | { |
347 | const char *name; | |
348 | const char *subkey; | |
349 | struct remote *remote; | |
cf818348 DB |
350 | struct branch *branch; |
351 | if (!prefixcmp(key, "branch.")) { | |
352 | name = key + 7; | |
353 | subkey = strrchr(name, '.'); | |
cf818348 DB |
354 | if (!subkey) |
355 | return 0; | |
896c0535 | 356 | branch = make_branch(name, subkey - name); |
cf818348 | 357 | if (!strcmp(subkey, ".remote")) { |
d2370cc2 JH |
358 | if (!value) |
359 | return config_error_nonbool(key); | |
cf818348 | 360 | branch->remote_name = xstrdup(value); |
fa685bdf | 361 | if (branch == current_branch) { |
cf818348 | 362 | default_remote_name = branch->remote_name; |
fa685bdf DB |
363 | explicit_default_remote_name = 1; |
364 | } | |
d2370cc2 JH |
365 | } else if (!strcmp(subkey, ".merge")) { |
366 | if (!value) | |
367 | return config_error_nonbool(key); | |
cf818348 | 368 | add_merge(branch, xstrdup(value)); |
d2370cc2 | 369 | } |
cf818348 | 370 | return 0; |
5751f490 | 371 | } |
55029ae4 DB |
372 | if (!prefixcmp(key, "url.")) { |
373 | struct rewrite *rewrite; | |
60e3aba9 | 374 | name = key + 4; |
55029ae4 DB |
375 | subkey = strrchr(name, '.'); |
376 | if (!subkey) | |
377 | return 0; | |
55029ae4 | 378 | if (!strcmp(subkey, ".insteadof")) { |
1c2eafb8 JT |
379 | rewrite = make_rewrite(&rewrites, name, subkey - name); |
380 | if (!value) | |
381 | return config_error_nonbool(key); | |
382 | add_instead_of(rewrite, xstrdup(value)); | |
383 | } else if (!strcmp(subkey, ".pushinsteadof")) { | |
384 | rewrite = make_rewrite(&rewrites_push, name, subkey - name); | |
55029ae4 DB |
385 | if (!value) |
386 | return config_error_nonbool(key); | |
387 | add_instead_of(rewrite, xstrdup(value)); | |
388 | } | |
389 | } | |
5751f490 DB |
390 | if (prefixcmp(key, "remote.")) |
391 | return 0; | |
392 | name = key + 7; | |
c82efafc BC |
393 | if (*name == '/') { |
394 | warning("Config remote shorthand cannot begin with '/': %s", | |
395 | name); | |
396 | return 0; | |
397 | } | |
5751f490 DB |
398 | subkey = strrchr(name, '.'); |
399 | if (!subkey) | |
cd294bc3 | 400 | return 0; |
5751f490 | 401 | remote = make_remote(name, subkey - name); |
89cf4c70 | 402 | remote->origin = REMOTE_CONFIG; |
84bb2dfd PB |
403 | if (!strcmp(subkey, ".mirror")) |
404 | remote->mirror = git_config_bool(key, value); | |
405 | else if (!strcmp(subkey, ".skipdefaultupdate")) | |
406 | remote->skip_default_update = git_config_bool(key, value); | |
7cc91a2f BG |
407 | else if (!strcmp(subkey, ".skipfetchall")) |
408 | remote->skip_default_update = git_config_bool(key, value); | |
84bb2dfd PB |
409 | else if (!strcmp(subkey, ".url")) { |
410 | const char *v; | |
411 | if (git_config_string(&v, key, value)) | |
412 | return -1; | |
413 | add_url(remote, v); | |
20346234 MG |
414 | } else if (!strcmp(subkey, ".pushurl")) { |
415 | const char *v; | |
416 | if (git_config_string(&v, key, value)) | |
417 | return -1; | |
418 | add_pushurl(remote, v); | |
5751f490 | 419 | } else if (!strcmp(subkey, ".push")) { |
84bb2dfd PB |
420 | const char *v; |
421 | if (git_config_string(&v, key, value)) | |
422 | return -1; | |
423 | add_push_refspec(remote, v); | |
5d46c9d4 | 424 | } else if (!strcmp(subkey, ".fetch")) { |
84bb2dfd PB |
425 | const char *v; |
426 | if (git_config_string(&v, key, value)) | |
427 | return -1; | |
428 | add_fetch_refspec(remote, v); | |
5751f490 | 429 | } else if (!strcmp(subkey, ".receivepack")) { |
84bb2dfd PB |
430 | const char *v; |
431 | if (git_config_string(&v, key, value)) | |
432 | return -1; | |
5751f490 | 433 | if (!remote->receivepack) |
84bb2dfd | 434 | remote->receivepack = v; |
5751f490 DB |
435 | else |
436 | error("more than one receivepack given, using the first"); | |
0012ba21 | 437 | } else if (!strcmp(subkey, ".uploadpack")) { |
84bb2dfd PB |
438 | const char *v; |
439 | if (git_config_string(&v, key, value)) | |
440 | return -1; | |
0012ba21 | 441 | if (!remote->uploadpack) |
84bb2dfd | 442 | remote->uploadpack = v; |
0012ba21 DB |
443 | else |
444 | error("more than one uploadpack given, using the first"); | |
d71ab174 DB |
445 | } else if (!strcmp(subkey, ".tagopt")) { |
446 | if (!strcmp(value, "--no-tags")) | |
447 | remote->fetch_tags = -1; | |
944163a4 ST |
448 | else if (!strcmp(value, "--tags")) |
449 | remote->fetch_tags = 2; | |
14c98218 | 450 | } else if (!strcmp(subkey, ".proxy")) { |
84bb2dfd PB |
451 | return git_config_string((const char **)&remote->http_proxy, |
452 | key, value); | |
c578f51d DB |
453 | } else if (!strcmp(subkey, ".vcs")) { |
454 | return git_config_string(&remote->foreign_vcs, key, value); | |
84bb2dfd | 455 | } |
5751f490 DB |
456 | return 0; |
457 | } | |
458 | ||
55029ae4 DB |
459 | static void alias_all_urls(void) |
460 | { | |
461 | int i, j; | |
462 | for (i = 0; i < remotes_nr; i++) { | |
1c2eafb8 | 463 | int add_pushurl_aliases; |
55029ae4 DB |
464 | if (!remotes[i]) |
465 | continue; | |
20346234 | 466 | for (j = 0; j < remotes[i]->pushurl_nr; j++) { |
d071d942 | 467 | remotes[i]->pushurl[j] = alias_url(remotes[i]->pushurl[j], &rewrites); |
20346234 | 468 | } |
1c2eafb8 JT |
469 | add_pushurl_aliases = remotes[i]->pushurl_nr == 0; |
470 | for (j = 0; j < remotes[i]->url_nr; j++) { | |
471 | if (add_pushurl_aliases) | |
472 | add_pushurl_alias(remotes[i], remotes[i]->url[j]); | |
473 | remotes[i]->url[j] = alias_url(remotes[i]->url[j], &rewrites); | |
474 | } | |
55029ae4 DB |
475 | } |
476 | } | |
477 | ||
5751f490 DB |
478 | static void read_config(void) |
479 | { | |
480 | unsigned char sha1[20]; | |
481 | const char *head_ref; | |
482 | int flag; | |
2543d9b6 | 483 | if (default_remote_name) /* did this already */ |
5751f490 DB |
484 | return; |
485 | default_remote_name = xstrdup("origin"); | |
486 | current_branch = NULL; | |
8cad4744 | 487 | head_ref = resolve_ref_unsafe("HEAD", sha1, 0, &flag); |
5751f490 DB |
488 | if (head_ref && (flag & REF_ISSYMREF) && |
489 | !prefixcmp(head_ref, "refs/heads/")) { | |
cf818348 DB |
490 | current_branch = |
491 | make_branch(head_ref + strlen("refs/heads/"), 0); | |
5751f490 | 492 | } |
ef90d6d4 | 493 | git_config(handle_config, NULL); |
55029ae4 | 494 | alias_all_urls(); |
5751f490 DB |
495 | } |
496 | ||
2cb1f36d BC |
497 | /* |
498 | * This function frees a refspec array. | |
499 | * Warning: code paths should be checked to ensure that the src | |
500 | * and dst pointers are always freeable pointers as well | |
501 | * as the refspec pointer itself. | |
502 | */ | |
697d7f5d | 503 | static void free_refspecs(struct refspec *refspec, int nr_refspec) |
2cb1f36d BC |
504 | { |
505 | int i; | |
506 | ||
507 | if (!refspec) | |
508 | return; | |
509 | ||
510 | for (i = 0; i < nr_refspec; i++) { | |
511 | free(refspec[i].src); | |
512 | free(refspec[i].dst); | |
513 | } | |
514 | free(refspec); | |
515 | } | |
516 | ||
24b6177e | 517 | static struct refspec *parse_refspec_internal(int nr_refspec, const char **refspec, int fetch, int verify) |
6b62816c DB |
518 | { |
519 | int i; | |
520 | struct refspec *rs = xcalloc(sizeof(*rs), nr_refspec); | |
46220ca1 | 521 | |
6b62816c | 522 | for (i = 0; i < nr_refspec; i++) { |
47c6ef1c | 523 | size_t llen; |
46220ca1 JH |
524 | int is_glob; |
525 | const char *lhs, *rhs; | |
8d9c5010 | 526 | int flags; |
46220ca1 | 527 | |
8e76bf3f | 528 | is_glob = 0; |
46220ca1 JH |
529 | |
530 | lhs = refspec[i]; | |
531 | if (*lhs == '+') { | |
6b62816c | 532 | rs[i].force = 1; |
46220ca1 | 533 | lhs++; |
6b62816c | 534 | } |
46220ca1 JH |
535 | |
536 | rhs = strrchr(lhs, ':'); | |
a83619d6 PB |
537 | |
538 | /* | |
539 | * Before going on, special case ":" (or "+:") as a refspec | |
540 | * for matching refs. | |
541 | */ | |
542 | if (!fetch && rhs == lhs && rhs[1] == '\0') { | |
543 | rs[i].matching = 1; | |
544 | continue; | |
545 | } | |
546 | ||
46220ca1 | 547 | if (rhs) { |
47c6ef1c | 548 | size_t rlen = strlen(++rhs); |
abd2bde7 | 549 | is_glob = (1 <= rlen && strchr(rhs, '*')); |
08fbdb30 | 550 | rs[i].dst = xstrndup(rhs, rlen); |
6b62816c | 551 | } |
ef00d150 | 552 | |
46220ca1 | 553 | llen = (rhs ? (rhs - lhs - 1) : strlen(lhs)); |
abd2bde7 | 554 | if (1 <= llen && memchr(lhs, '*', llen)) { |
7d19da46 JH |
555 | if ((rhs && !is_glob) || (!rhs && fetch)) |
556 | goto invalid; | |
557 | is_glob = 1; | |
7d19da46 JH |
558 | } else if (rhs && is_glob) { |
559 | goto invalid; | |
ef00d150 | 560 | } |
7d19da46 | 561 | |
46220ca1 JH |
562 | rs[i].pattern = is_glob; |
563 | rs[i].src = xstrndup(lhs, llen); | |
8d9c5010 | 564 | flags = REFNAME_ALLOW_ONELEVEL | (is_glob ? REFNAME_REFSPEC_PATTERN : 0); |
46220ca1 JH |
565 | |
566 | if (fetch) { | |
567 | /* | |
568 | * LHS | |
569 | * - empty is allowed; it means HEAD. | |
570 | * - otherwise it must be a valid looking ref. | |
571 | */ | |
572 | if (!*rs[i].src) | |
573 | ; /* empty is ok */ | |
8d9c5010 MH |
574 | else if (check_refname_format(rs[i].src, flags)) |
575 | goto invalid; | |
46220ca1 JH |
576 | /* |
577 | * RHS | |
7d19da46 | 578 | * - missing is ok, and is same as empty. |
46220ca1 JH |
579 | * - empty is ok; it means not to store. |
580 | * - otherwise it must be a valid looking ref. | |
581 | */ | |
8d9c5010 | 582 | if (!rs[i].dst) |
46220ca1 | 583 | ; /* ok */ |
8d9c5010 | 584 | else if (!*rs[i].dst) |
46220ca1 | 585 | ; /* ok */ |
8d9c5010 MH |
586 | else if (check_refname_format(rs[i].dst, flags)) |
587 | goto invalid; | |
46220ca1 JH |
588 | } else { |
589 | /* | |
590 | * LHS | |
591 | * - empty is allowed; it means delete. | |
592 | * - when wildcarded, it must be a valid looking ref. | |
593 | * - otherwise, it must be an extended SHA-1, but | |
594 | * there is no existing way to validate this. | |
595 | */ | |
596 | if (!*rs[i].src) | |
597 | ; /* empty is ok */ | |
598 | else if (is_glob) { | |
8d9c5010 | 599 | if (check_refname_format(rs[i].src, flags)) |
46220ca1 JH |
600 | goto invalid; |
601 | } | |
602 | else | |
603 | ; /* anything goes, for now */ | |
604 | /* | |
605 | * RHS | |
606 | * - missing is allowed, but LHS then must be a | |
607 | * valid looking ref. | |
608 | * - empty is not allowed. | |
609 | * - otherwise it must be a valid looking ref. | |
610 | */ | |
611 | if (!rs[i].dst) { | |
8d9c5010 | 612 | if (check_refname_format(rs[i].src, flags)) |
46220ca1 JH |
613 | goto invalid; |
614 | } else if (!*rs[i].dst) { | |
615 | goto invalid; | |
616 | } else { | |
8d9c5010 | 617 | if (check_refname_format(rs[i].dst, flags)) |
46220ca1 JH |
618 | goto invalid; |
619 | } | |
ef00d150 | 620 | } |
6b62816c DB |
621 | } |
622 | return rs; | |
46220ca1 JH |
623 | |
624 | invalid: | |
24b6177e | 625 | if (verify) { |
2cb1f36d BC |
626 | /* |
627 | * nr_refspec must be greater than zero and i must be valid | |
628 | * since it is only possible to reach this point from within | |
629 | * the for loop above. | |
630 | */ | |
631 | free_refspecs(rs, i+1); | |
24b6177e JF |
632 | return NULL; |
633 | } | |
46220ca1 JH |
634 | die("Invalid refspec '%s'", refspec[i]); |
635 | } | |
636 | ||
24b6177e JF |
637 | int valid_fetch_refspec(const char *fetch_refspec_str) |
638 | { | |
24b6177e JF |
639 | struct refspec *refspec; |
640 | ||
66dbfd55 | 641 | refspec = parse_refspec_internal(1, &fetch_refspec_str, 1, 1); |
2cb1f36d | 642 | free_refspecs(refspec, 1); |
24b6177e JF |
643 | return !!refspec; |
644 | } | |
645 | ||
46220ca1 JH |
646 | struct refspec *parse_fetch_refspec(int nr_refspec, const char **refspec) |
647 | { | |
24b6177e | 648 | return parse_refspec_internal(nr_refspec, refspec, 1, 0); |
46220ca1 JH |
649 | } |
650 | ||
697d7f5d | 651 | static struct refspec *parse_push_refspec(int nr_refspec, const char **refspec) |
46220ca1 | 652 | { |
24b6177e | 653 | return parse_refspec_internal(nr_refspec, refspec, 0, 0); |
6b62816c DB |
654 | } |
655 | ||
72ff8943 DB |
656 | void free_refspec(int nr_refspec, struct refspec *refspec) |
657 | { | |
658 | int i; | |
659 | for (i = 0; i < nr_refspec; i++) { | |
660 | free(refspec[i].src); | |
661 | free(refspec[i].dst); | |
662 | } | |
663 | free(refspec); | |
664 | } | |
665 | ||
df93e33c DB |
666 | static int valid_remote_nick(const char *name) |
667 | { | |
8ca12c0d | 668 | if (!name[0] || is_dot_or_dotdot(name)) |
df93e33c DB |
669 | return 0; |
670 | return !strchr(name, '/'); /* no slash */ | |
671 | } | |
672 | ||
5751f490 DB |
673 | struct remote *remote_get(const char *name) |
674 | { | |
675 | struct remote *ret; | |
fa685bdf | 676 | int name_given = 0; |
5751f490 DB |
677 | |
678 | read_config(); | |
fa685bdf DB |
679 | if (name) |
680 | name_given = 1; | |
681 | else { | |
5751f490 | 682 | name = default_remote_name; |
fa685bdf DB |
683 | name_given = explicit_default_remote_name; |
684 | } | |
9326d494 | 685 | |
5751f490 | 686 | ret = make_remote(name, 0); |
df93e33c | 687 | if (valid_remote_nick(name)) { |
0a4da29d | 688 | if (!valid_remote(ret)) |
5751f490 | 689 | read_remotes_file(ret); |
0a4da29d | 690 | if (!valid_remote(ret)) |
5751f490 DB |
691 | read_branches_file(ret); |
692 | } | |
0a4da29d | 693 | if (name_given && !valid_remote(ret)) |
55029ae4 | 694 | add_url_alias(ret, name); |
0a4da29d | 695 | if (!valid_remote(ret)) |
5751f490 | 696 | return NULL; |
46220ca1 JH |
697 | ret->fetch = parse_fetch_refspec(ret->fetch_refspec_nr, ret->fetch_refspec); |
698 | ret->push = parse_push_refspec(ret->push_refspec_nr, ret->push_refspec); | |
5751f490 DB |
699 | return ret; |
700 | } | |
6b62816c | 701 | |
9a23ba33 FAG |
702 | int remote_is_configured(const char *name) |
703 | { | |
704 | int i; | |
705 | read_config(); | |
706 | ||
707 | for (i = 0; i < remotes_nr; i++) | |
708 | if (!strcmp(name, remotes[i]->name)) | |
709 | return 1; | |
710 | return 0; | |
711 | } | |
712 | ||
b42f6927 JS |
713 | int for_each_remote(each_remote_fn fn, void *priv) |
714 | { | |
715 | int i, result = 0; | |
716 | read_config(); | |
2d31347b | 717 | for (i = 0; i < remotes_nr && !result; i++) { |
b42f6927 JS |
718 | struct remote *r = remotes[i]; |
719 | if (!r) | |
720 | continue; | |
721 | if (!r->fetch) | |
46220ca1 JH |
722 | r->fetch = parse_fetch_refspec(r->fetch_refspec_nr, |
723 | r->fetch_refspec); | |
b42f6927 | 724 | if (!r->push) |
46220ca1 JH |
725 | r->push = parse_push_refspec(r->push_refspec_nr, |
726 | r->push_refspec); | |
b42f6927 JS |
727 | result = fn(r, priv); |
728 | } | |
729 | return result; | |
730 | } | |
731 | ||
2467a4fa DB |
732 | void ref_remove_duplicates(struct ref *ref_map) |
733 | { | |
183113a5 | 734 | struct string_list refs = STRING_LIST_INIT_NODUP; |
73cf0822 JP |
735 | struct string_list_item *item = NULL; |
736 | struct ref *prev = NULL, *next = NULL; | |
737 | for (; ref_map; prev = ref_map, ref_map = next) { | |
738 | next = ref_map->next; | |
2467a4fa DB |
739 | if (!ref_map->peer_ref) |
740 | continue; | |
73cf0822 | 741 | |
e8c8b713 | 742 | item = string_list_lookup(&refs, ref_map->peer_ref->name); |
73cf0822 JP |
743 | if (item) { |
744 | if (strcmp(((struct ref *)item->util)->name, | |
745 | ref_map->name)) | |
746 | die("%s tracks both %s and %s", | |
747 | ref_map->peer_ref->name, | |
748 | ((struct ref *)item->util)->name, | |
749 | ref_map->name); | |
750 | prev->next = ref_map->next; | |
751 | free(ref_map->peer_ref); | |
752 | free(ref_map); | |
95c96d48 JP |
753 | ref_map = prev; /* skip this; we freed it */ |
754 | continue; | |
2467a4fa | 755 | } |
73cf0822 | 756 | |
78a395d3 | 757 | item = string_list_insert(&refs, ref_map->peer_ref->name); |
73cf0822 | 758 | item->util = ref_map; |
2467a4fa | 759 | } |
73cf0822 | 760 | string_list_clear(&refs, 0); |
2467a4fa DB |
761 | } |
762 | ||
28b91f8a | 763 | int remote_has_url(struct remote *remote, const char *url) |
5d46c9d4 DB |
764 | { |
765 | int i; | |
28b91f8a SP |
766 | for (i = 0; i < remote->url_nr; i++) { |
767 | if (!strcmp(remote->url[i], url)) | |
5d46c9d4 DB |
768 | return 1; |
769 | } | |
770 | return 0; | |
771 | } | |
772 | ||
e928213f DB |
773 | static int match_name_with_pattern(const char *key, const char *name, |
774 | const char *value, char **result) | |
a3c84239 | 775 | { |
08fbdb30 DB |
776 | const char *kstar = strchr(key, '*'); |
777 | size_t klen; | |
abd2bde7 DB |
778 | size_t ksuffixlen; |
779 | size_t namelen; | |
08fbdb30 DB |
780 | int ret; |
781 | if (!kstar) | |
782 | die("Key '%s' of pattern had no '*'", key); | |
783 | klen = kstar - key; | |
abd2bde7 DB |
784 | ksuffixlen = strlen(kstar + 1); |
785 | namelen = strlen(name); | |
786 | ret = !strncmp(name, key, klen) && namelen >= klen + ksuffixlen && | |
787 | !memcmp(name + namelen - ksuffixlen, kstar + 1, ksuffixlen); | |
e928213f | 788 | if (ret && value) { |
08fbdb30 DB |
789 | const char *vstar = strchr(value, '*'); |
790 | size_t vlen; | |
abd2bde7 | 791 | size_t vsuffixlen; |
08fbdb30 DB |
792 | if (!vstar) |
793 | die("Value '%s' of pattern has no '*'", value); | |
794 | vlen = vstar - value; | |
abd2bde7 DB |
795 | vsuffixlen = strlen(vstar + 1); |
796 | *result = xmalloc(vlen + vsuffixlen + | |
e928213f | 797 | strlen(name) - |
abd2bde7 DB |
798 | klen - ksuffixlen + 1); |
799 | strncpy(*result, value, vlen); | |
800 | strncpy(*result + vlen, | |
801 | name + klen, namelen - klen - ksuffixlen); | |
802 | strcpy(*result + vlen + namelen - klen - ksuffixlen, | |
803 | vstar + 1); | |
e928213f | 804 | } |
a3c84239 DB |
805 | return ret; |
806 | } | |
807 | ||
c500352e | 808 | static int query_refspecs(struct refspec *refs, int ref_count, struct refspec *query) |
72ff8943 DB |
809 | { |
810 | int i; | |
c500352e | 811 | int find_src = !query->src; |
72ff8943 | 812 | |
c500352e CMN |
813 | if (find_src && !query->dst) |
814 | return error("query_refspecs: need either src or dst"); | |
b42f6927 | 815 | |
c500352e CMN |
816 | for (i = 0; i < ref_count; i++) { |
817 | struct refspec *refspec = &refs[i]; | |
818 | const char *key = find_src ? refspec->dst : refspec->src; | |
819 | const char *value = find_src ? refspec->src : refspec->dst; | |
820 | const char *needle = find_src ? query->dst : query->src; | |
821 | char **result = find_src ? &query->src : &query->dst; | |
b42f6927 | 822 | |
c500352e | 823 | if (!refspec->dst) |
5d46c9d4 | 824 | continue; |
c500352e | 825 | if (refspec->pattern) { |
e928213f | 826 | if (match_name_with_pattern(key, needle, value, result)) { |
c500352e | 827 | query->force = refspec->force; |
5d46c9d4 DB |
828 | return 0; |
829 | } | |
b42f6927 JS |
830 | } else if (!strcmp(needle, key)) { |
831 | *result = xstrdup(value); | |
c500352e | 832 | query->force = refspec->force; |
b42f6927 | 833 | return 0; |
5d46c9d4 DB |
834 | } |
835 | } | |
5d46c9d4 DB |
836 | return -1; |
837 | } | |
838 | ||
c500352e CMN |
839 | char *apply_refspecs(struct refspec *refspecs, int nr_refspec, |
840 | const char *name) | |
841 | { | |
842 | struct refspec query; | |
843 | ||
844 | memset(&query, 0, sizeof(struct refspec)); | |
845 | query.src = (char *)name; | |
846 | ||
847 | if (query_refspecs(refspecs, nr_refspec, &query)) | |
848 | return NULL; | |
849 | ||
850 | return query.dst; | |
851 | } | |
852 | ||
853 | int remote_find_tracking(struct remote *remote, struct refspec *refspec) | |
854 | { | |
855 | return query_refspecs(remote->fetch, remote->fetch_refspec_nr, refspec); | |
856 | } | |
857 | ||
8009768e RS |
858 | static struct ref *alloc_ref_with_prefix(const char *prefix, size_t prefixlen, |
859 | const char *name) | |
860 | { | |
861 | size_t len = strlen(name); | |
862 | struct ref *ref = xcalloc(1, sizeof(struct ref) + prefixlen + len + 1); | |
863 | memcpy(ref->name, prefix, prefixlen); | |
864 | memcpy(ref->name + prefixlen, name, len); | |
865 | return ref; | |
866 | } | |
867 | ||
59c69c0c | 868 | struct ref *alloc_ref(const char *name) |
dfd255dd | 869 | { |
59c69c0c | 870 | return alloc_ref_with_prefix("", 0, name); |
737922aa KK |
871 | } |
872 | ||
59a57757 | 873 | struct ref *copy_ref(const struct ref *ref) |
d71ab174 | 874 | { |
7b3db095 JS |
875 | struct ref *cpy; |
876 | size_t len; | |
877 | if (!ref) | |
878 | return NULL; | |
879 | len = strlen(ref->name); | |
880 | cpy = xmalloc(sizeof(struct ref) + len + 1); | |
881 | memcpy(cpy, ref, sizeof(struct ref) + len + 1); | |
882 | cpy->next = NULL; | |
883 | cpy->symref = ref->symref ? xstrdup(ref->symref) : NULL; | |
884 | cpy->remote_status = ref->remote_status ? xstrdup(ref->remote_status) : NULL; | |
885 | cpy->peer_ref = copy_ref(ref->peer_ref); | |
886 | return cpy; | |
d71ab174 DB |
887 | } |
888 | ||
4577370e DB |
889 | struct ref *copy_ref_list(const struct ref *ref) |
890 | { | |
891 | struct ref *ret = NULL; | |
892 | struct ref **tail = &ret; | |
893 | while (ref) { | |
894 | *tail = copy_ref(ref); | |
895 | ref = ref->next; | |
896 | tail = &((*tail)->next); | |
897 | } | |
898 | return ret; | |
899 | } | |
900 | ||
697d7f5d | 901 | static void free_ref(struct ref *ref) |
be885d96 DB |
902 | { |
903 | if (!ref) | |
904 | return; | |
7b3db095 | 905 | free_ref(ref->peer_ref); |
be885d96 DB |
906 | free(ref->remote_status); |
907 | free(ref->symref); | |
908 | free(ref); | |
909 | } | |
910 | ||
dfd255dd DB |
911 | void free_refs(struct ref *ref) |
912 | { | |
913 | struct ref *next; | |
914 | while (ref) { | |
915 | next = ref->next; | |
be885d96 | 916 | free_ref(ref); |
dfd255dd DB |
917 | ref = next; |
918 | } | |
919 | } | |
920 | ||
6b62816c DB |
921 | static int count_refspec_match(const char *pattern, |
922 | struct ref *refs, | |
923 | struct ref **matched_ref) | |
924 | { | |
925 | int patlen = strlen(pattern); | |
926 | struct ref *matched_weak = NULL; | |
927 | struct ref *matched = NULL; | |
928 | int weak_match = 0; | |
929 | int match = 0; | |
930 | ||
931 | for (weak_match = match = 0; refs; refs = refs->next) { | |
932 | char *name = refs->name; | |
933 | int namelen = strlen(name); | |
6b62816c | 934 | |
ae36bdcf | 935 | if (!refname_match(pattern, name, ref_rev_parse_rules)) |
6b62816c DB |
936 | continue; |
937 | ||
938 | /* A match is "weak" if it is with refs outside | |
939 | * heads or tags, and did not specify the pattern | |
940 | * in full (e.g. "refs/remotes/origin/master") or at | |
941 | * least from the toplevel (e.g. "remotes/origin/master"); | |
942 | * otherwise "git push $URL master" would result in | |
943 | * ambiguity between remotes/origin/master and heads/master | |
944 | * at the remote site. | |
945 | */ | |
946 | if (namelen != patlen && | |
947 | patlen != namelen - 5 && | |
948 | prefixcmp(name, "refs/heads/") && | |
949 | prefixcmp(name, "refs/tags/")) { | |
950 | /* We want to catch the case where only weak | |
951 | * matches are found and there are multiple | |
952 | * matches, and where more than one strong | |
953 | * matches are found, as ambiguous. One | |
954 | * strong match with zero or more weak matches | |
955 | * are acceptable as a unique match. | |
956 | */ | |
957 | matched_weak = refs; | |
958 | weak_match++; | |
959 | } | |
960 | else { | |
961 | matched = refs; | |
962 | match++; | |
963 | } | |
964 | } | |
965 | if (!matched) { | |
966 | *matched_ref = matched_weak; | |
967 | return weak_match; | |
968 | } | |
969 | else { | |
970 | *matched_ref = matched; | |
971 | return match; | |
972 | } | |
973 | } | |
974 | ||
1d735267 | 975 | static void tail_link_ref(struct ref *ref, struct ref ***tail) |
6b62816c DB |
976 | { |
977 | **tail = ref; | |
1d735267 DB |
978 | while (ref->next) |
979 | ref = ref->next; | |
6b62816c | 980 | *tail = &ref->next; |
6b62816c DB |
981 | } |
982 | ||
67655246 FC |
983 | static struct ref *alloc_delete_ref(void) |
984 | { | |
985 | struct ref *ref = alloc_ref("(delete)"); | |
986 | hashclr(ref->new_sha1); | |
987 | return ref; | |
988 | } | |
989 | ||
6b62816c DB |
990 | static struct ref *try_explicit_object_name(const char *name) |
991 | { | |
992 | unsigned char sha1[20]; | |
993 | struct ref *ref; | |
6b62816c | 994 | |
67655246 FC |
995 | if (!*name) |
996 | return alloc_delete_ref(); | |
6b62816c DB |
997 | if (get_sha1(name, sha1)) |
998 | return NULL; | |
59c69c0c | 999 | ref = alloc_ref(name); |
6b62816c DB |
1000 | hashcpy(ref->new_sha1, sha1); |
1001 | return ref; | |
1002 | } | |
1003 | ||
1d735267 | 1004 | static struct ref *make_linked_ref(const char *name, struct ref ***tail) |
6b62816c | 1005 | { |
59c69c0c | 1006 | struct ref *ret = alloc_ref(name); |
1d735267 DB |
1007 | tail_link_ref(ret, tail); |
1008 | return ret; | |
163f0ee5 | 1009 | } |
8558fd9e | 1010 | |
f8aae120 JK |
1011 | static char *guess_ref(const char *name, struct ref *peer) |
1012 | { | |
1013 | struct strbuf buf = STRBUF_INIT; | |
1014 | unsigned char sha1[20]; | |
1015 | ||
8cad4744 | 1016 | const char *r = resolve_ref_unsafe(peer->name, sha1, 1, NULL); |
f8aae120 JK |
1017 | if (!r) |
1018 | return NULL; | |
1019 | ||
1020 | if (!prefixcmp(r, "refs/heads/")) | |
1021 | strbuf_addstr(&buf, "refs/heads/"); | |
1022 | else if (!prefixcmp(r, "refs/tags/")) | |
1023 | strbuf_addstr(&buf, "refs/tags/"); | |
1024 | else | |
1025 | return NULL; | |
1026 | ||
1027 | strbuf_addstr(&buf, name); | |
1028 | return strbuf_detach(&buf, NULL); | |
1029 | } | |
1030 | ||
54a8ad92 JH |
1031 | static int match_explicit(struct ref *src, struct ref *dst, |
1032 | struct ref ***dst_tail, | |
9a7bbd1d | 1033 | struct refspec *rs) |
6b62816c | 1034 | { |
54a8ad92 | 1035 | struct ref *matched_src, *matched_dst; |
cdf690e5 | 1036 | int copy_src; |
8558fd9e | 1037 | |
54a8ad92 | 1038 | const char *dst_value = rs->dst; |
f8aae120 | 1039 | char *dst_guess; |
6b62816c | 1040 | |
a83619d6 | 1041 | if (rs->pattern || rs->matching) |
9a7bbd1d | 1042 | return 0; |
8558fd9e | 1043 | |
54a8ad92 JH |
1044 | matched_src = matched_dst = NULL; |
1045 | switch (count_refspec_match(rs->src, src, &matched_src)) { | |
1046 | case 1: | |
cdf690e5 | 1047 | copy_src = 1; |
54a8ad92 JH |
1048 | break; |
1049 | case 0: | |
1050 | /* The source could be in the get_sha1() format | |
1051 | * not a reference name. :refs/other is a | |
1052 | * way to delete 'other' ref at the remote end. | |
1053 | */ | |
1054 | matched_src = try_explicit_object_name(rs->src); | |
7dfee372 | 1055 | if (!matched_src) |
9a7bbd1d | 1056 | return error("src refspec %s does not match any.", rs->src); |
cdf690e5 | 1057 | copy_src = 0; |
54a8ad92 JH |
1058 | break; |
1059 | default: | |
9a7bbd1d | 1060 | return error("src refspec %s matches more than one.", rs->src); |
54a8ad92 | 1061 | } |
3c8b7df1 | 1062 | |
4491e62a | 1063 | if (!dst_value) { |
9f0ea7e8 DB |
1064 | unsigned char sha1[20]; |
1065 | int flag; | |
1066 | ||
8cad4744 | 1067 | dst_value = resolve_ref_unsafe(matched_src->name, sha1, 1, &flag); |
9f0ea7e8 DB |
1068 | if (!dst_value || |
1069 | ((flag & REF_ISSYMREF) && | |
1070 | prefixcmp(dst_value, "refs/heads/"))) | |
1071 | die("%s cannot be resolved to branch.", | |
1072 | matched_src->name); | |
4491e62a | 1073 | } |
3c8b7df1 | 1074 | |
54a8ad92 JH |
1075 | switch (count_refspec_match(dst_value, dst, &matched_dst)) { |
1076 | case 1: | |
1077 | break; | |
1078 | case 0: | |
163f0ee5 | 1079 | if (!memcmp(dst_value, "refs/", 5)) |
1d735267 | 1080 | matched_dst = make_linked_ref(dst_value, dst_tail); |
eeefa7c9 | 1081 | else if ((dst_guess = guess_ref(dst_value, matched_src))) |
f8aae120 | 1082 | matched_dst = make_linked_ref(dst_guess, dst_tail); |
3c8b7df1 | 1083 | else |
f8aae120 JK |
1084 | error("unable to push to unqualified destination: %s\n" |
1085 | "The destination refspec neither matches an " | |
1086 | "existing ref on the remote nor\n" | |
1087 | "begins with refs/, and we are unable to " | |
1088 | "guess a prefix based on the source ref.", | |
1089 | dst_value); | |
54a8ad92 JH |
1090 | break; |
1091 | default: | |
3c8b7df1 | 1092 | matched_dst = NULL; |
54a8ad92 JH |
1093 | error("dst refspec %s matches more than one.", |
1094 | dst_value); | |
1095 | break; | |
1096 | } | |
9a7bbd1d JK |
1097 | if (!matched_dst) |
1098 | return -1; | |
1099 | if (matched_dst->peer_ref) | |
1100 | return error("dst ref %s receives from more than one src.", | |
54a8ad92 | 1101 | matched_dst->name); |
54a8ad92 | 1102 | else { |
cdf690e5 | 1103 | matched_dst->peer_ref = copy_src ? copy_ref(matched_src) : matched_src; |
54a8ad92 | 1104 | matched_dst->force = rs->force; |
6b62816c | 1105 | } |
9a7bbd1d | 1106 | return 0; |
54a8ad92 JH |
1107 | } |
1108 | ||
1109 | static int match_explicit_refs(struct ref *src, struct ref *dst, | |
1110 | struct ref ***dst_tail, struct refspec *rs, | |
1111 | int rs_nr) | |
1112 | { | |
1113 | int i, errs; | |
1114 | for (i = errs = 0; i < rs_nr; i++) | |
9a7bbd1d JK |
1115 | errs += match_explicit(src, dst, dst_tail, &rs[i]); |
1116 | return errs; | |
6b62816c DB |
1117 | } |
1118 | ||
db70a04c | 1119 | static char *get_ref_match(const struct refspec *rs, int rs_nr, const struct ref *ref, |
6ddba5e2 | 1120 | int send_mirror, int direction, const struct refspec **ret_pat) |
8558fd9e | 1121 | { |
db70a04c FC |
1122 | const struct refspec *pat; |
1123 | char *name; | |
8558fd9e | 1124 | int i; |
a83619d6 | 1125 | int matching_refs = -1; |
8558fd9e | 1126 | for (i = 0; i < rs_nr; i++) { |
a83619d6 PB |
1127 | if (rs[i].matching && |
1128 | (matching_refs == -1 || rs[i].force)) { | |
1129 | matching_refs = i; | |
1130 | continue; | |
1131 | } | |
1132 | ||
db70a04c FC |
1133 | if (rs[i].pattern) { |
1134 | const char *dst_side = rs[i].dst ? rs[i].dst : rs[i].src; | |
6ddba5e2 FC |
1135 | int match; |
1136 | if (direction == FROM_SRC) | |
1137 | match = match_name_with_pattern(rs[i].src, ref->name, dst_side, &name); | |
1138 | else | |
1139 | match = match_name_with_pattern(dst_side, ref->name, rs[i].src, &name); | |
1140 | if (match) { | |
db70a04c FC |
1141 | matching_refs = i; |
1142 | break; | |
1143 | } | |
1144 | } | |
8558fd9e | 1145 | } |
db70a04c | 1146 | if (matching_refs == -1) |
a83619d6 | 1147 | return NULL; |
db70a04c FC |
1148 | |
1149 | pat = rs + matching_refs; | |
1150 | if (pat->matching) { | |
1151 | /* | |
1152 | * "matching refs"; traditionally we pushed everything | |
1153 | * including refs outside refs/heads/ hierarchy, but | |
1154 | * that does not make much sense these days. | |
1155 | */ | |
1156 | if (!send_mirror && prefixcmp(ref->name, "refs/heads/")) | |
1157 | return NULL; | |
1158 | name = xstrdup(ref->name); | |
1159 | } | |
1160 | if (ret_pat) | |
1161 | *ret_pat = pat; | |
1162 | return name; | |
8558fd9e DB |
1163 | } |
1164 | ||
6d2bf96e CB |
1165 | static struct ref **tail_ref(struct ref **head) |
1166 | { | |
1167 | struct ref **tail = head; | |
1168 | while (*tail) | |
1169 | tail = &((*tail)->next); | |
1170 | return tail; | |
1171 | } | |
1172 | ||
54a8ad92 | 1173 | /* |
29753cdd JH |
1174 | * Given the set of refs the local repository has, the set of refs the |
1175 | * remote repository has, and the refspec used for push, determine | |
1176 | * what remote refs we will update and with what value by setting | |
1177 | * peer_ref (which object is being pushed) and force (if the push is | |
1178 | * forced) in elements of "dst". The function may add new elements to | |
1179 | * dst (e.g. pushing to a new branch, done in match_explicit_refs). | |
54a8ad92 | 1180 | */ |
29753cdd JH |
1181 | int match_push_refs(struct ref *src, struct ref **dst, |
1182 | int nr_refspec, const char **refspec, int flags) | |
6b62816c | 1183 | { |
a83619d6 | 1184 | struct refspec *rs; |
28b9d6e5 AW |
1185 | int send_all = flags & MATCH_REFS_ALL; |
1186 | int send_mirror = flags & MATCH_REFS_MIRROR; | |
6ddba5e2 | 1187 | int send_prune = flags & MATCH_REFS_PRUNE; |
5f48cb95 | 1188 | int errs; |
2af202be | 1189 | static const char *default_refspec[] = { ":", NULL }; |
b1d8b1f3 | 1190 | struct ref *ref, **dst_tail = tail_ref(dst); |
6b62816c | 1191 | |
a83619d6 PB |
1192 | if (!nr_refspec) { |
1193 | nr_refspec = 1; | |
1194 | refspec = default_refspec; | |
1195 | } | |
1196 | rs = parse_push_refspec(nr_refspec, (const char **) refspec); | |
6d2bf96e | 1197 | errs = match_explicit_refs(src, *dst, &dst_tail, rs, nr_refspec); |
6b62816c DB |
1198 | |
1199 | /* pick the remainder */ | |
b1d8b1f3 | 1200 | for (ref = src; ref; ref = ref->next) { |
6b62816c | 1201 | struct ref *dst_peer; |
6e66bf3c AR |
1202 | const struct refspec *pat = NULL; |
1203 | char *dst_name; | |
db70a04c | 1204 | |
b1d8b1f3 | 1205 | if (ref->peer_ref) |
6b62816c | 1206 | continue; |
a83619d6 | 1207 | |
6ddba5e2 | 1208 | dst_name = get_ref_match(rs, nr_refspec, ref, send_mirror, FROM_SRC, &pat); |
db70a04c | 1209 | if (!dst_name) |
a83619d6 PB |
1210 | continue; |
1211 | ||
6d2bf96e | 1212 | dst_peer = find_ref_by_name(*dst, dst_name); |
a83619d6 PB |
1213 | if (dst_peer) { |
1214 | if (dst_peer->peer_ref) | |
1215 | /* We're already sending something to this ref. */ | |
1216 | goto free_name; | |
a83619d6 PB |
1217 | } else { |
1218 | if (pat->matching && !(send_all || send_mirror)) | |
1219 | /* | |
1220 | * Remote doesn't have it, and we have no | |
1221 | * explicit pattern, and we don't have | |
1222 | * --all nor --mirror. | |
1223 | */ | |
1224 | goto free_name; | |
28b9d6e5 | 1225 | |
6b62816c | 1226 | /* Create a new one and link it */ |
6d2bf96e | 1227 | dst_peer = make_linked_ref(dst_name, &dst_tail); |
b1d8b1f3 | 1228 | hashcpy(dst_peer->new_sha1, ref->new_sha1); |
6b62816c | 1229 | } |
b1d8b1f3 | 1230 | dst_peer->peer_ref = copy_ref(ref); |
a83619d6 | 1231 | dst_peer->force = pat->force; |
6e66bf3c AR |
1232 | free_name: |
1233 | free(dst_name); | |
6b62816c | 1234 | } |
6ddba5e2 FC |
1235 | if (send_prune) { |
1236 | /* check for missing refs on the remote */ | |
1237 | for (ref = *dst; ref; ref = ref->next) { | |
1238 | char *src_name; | |
1239 | ||
1240 | if (ref->peer_ref) | |
1241 | /* We're already sending something to this ref. */ | |
1242 | continue; | |
1243 | ||
1244 | src_name = get_ref_match(rs, nr_refspec, ref, send_mirror, FROM_DST, NULL); | |
1245 | if (src_name) { | |
1246 | if (!find_ref_by_name(src, src_name)) | |
1247 | ref->peer_ref = alloc_delete_ref(); | |
1248 | free(src_name); | |
1249 | } | |
1250 | } | |
1251 | } | |
5f48cb95 JS |
1252 | if (errs) |
1253 | return -1; | |
6b62816c DB |
1254 | return 0; |
1255 | } | |
cf818348 | 1256 | |
20e8b465 TRC |
1257 | void set_ref_status_for_push(struct ref *remote_refs, int send_mirror, |
1258 | int force_update) | |
1259 | { | |
1260 | struct ref *ref; | |
1261 | ||
1262 | for (ref = remote_refs; ref; ref = ref->next) { | |
1263 | if (ref->peer_ref) | |
1264 | hashcpy(ref->new_sha1, ref->peer_ref->new_sha1); | |
1265 | else if (!send_mirror) | |
1266 | continue; | |
1267 | ||
1268 | ref->deletion = is_null_sha1(ref->new_sha1); | |
1269 | if (!ref->deletion && | |
1270 | !hashcmp(ref->old_sha1, ref->new_sha1)) { | |
1271 | ref->status = REF_STATUS_UPTODATE; | |
1272 | continue; | |
1273 | } | |
1274 | ||
1275 | /* This part determines what can overwrite what. | |
1276 | * The rules are: | |
1277 | * | |
1278 | * (0) you can always use --force or +A:B notation to | |
1279 | * selectively force individual ref pairs. | |
1280 | * | |
1281 | * (1) if the old thing does not exist, it is OK. | |
1282 | * | |
1283 | * (2) if you do not have the old thing, you are not allowed | |
1284 | * to overwrite it; you would not know what you are losing | |
1285 | * otherwise. | |
1286 | * | |
1287 | * (3) if both new and old are commit-ish, and new is a | |
1288 | * descendant of old, it is OK. | |
1289 | * | |
1290 | * (4) regardless of all of the above, removing :B is | |
1291 | * always allowed. | |
1292 | */ | |
1293 | ||
1294 | ref->nonfastforward = | |
1295 | !ref->deletion && | |
1296 | !is_null_sha1(ref->old_sha1) && | |
1297 | (!has_sha1_file(ref->old_sha1) | |
1298 | || !ref_newer(ref->new_sha1, ref->old_sha1)); | |
1299 | ||
1300 | if (ref->nonfastforward && !ref->force && !force_update) { | |
1301 | ref->status = REF_STATUS_REJECT_NONFASTFORWARD; | |
1302 | continue; | |
1303 | } | |
1304 | } | |
1305 | } | |
1306 | ||
cf818348 DB |
1307 | struct branch *branch_get(const char *name) |
1308 | { | |
1309 | struct branch *ret; | |
1310 | ||
1311 | read_config(); | |
1312 | if (!name || !*name || !strcmp(name, "HEAD")) | |
1313 | ret = current_branch; | |
1314 | else | |
1315 | ret = make_branch(name, 0); | |
1316 | if (ret && ret->remote_name) { | |
1317 | ret->remote = remote_get(ret->remote_name); | |
1318 | if (ret->merge_nr) { | |
1319 | int i; | |
1320 | ret->merge = xcalloc(sizeof(*ret->merge), | |
1321 | ret->merge_nr); | |
1322 | for (i = 0; i < ret->merge_nr; i++) { | |
1323 | ret->merge[i] = xcalloc(1, sizeof(**ret->merge)); | |
1324 | ret->merge[i]->src = xstrdup(ret->merge_name[i]); | |
5e6e2b48 MG |
1325 | if (remote_find_tracking(ret->remote, ret->merge[i]) |
1326 | && !strcmp(ret->remote_name, ".")) | |
1327 | ret->merge[i]->dst = xstrdup(ret->merge_name[i]); | |
cf818348 DB |
1328 | } |
1329 | } | |
1330 | } | |
1331 | return ret; | |
1332 | } | |
1333 | ||
1334 | int branch_has_merge_config(struct branch *branch) | |
1335 | { | |
1336 | return branch && !!branch->merge; | |
1337 | } | |
1338 | ||
85682c19 SP |
1339 | int branch_merge_matches(struct branch *branch, |
1340 | int i, | |
1341 | const char *refname) | |
cf818348 | 1342 | { |
85682c19 | 1343 | if (!branch || i < 0 || i >= branch->merge_nr) |
cf818348 | 1344 | return 0; |
605b4978 | 1345 | return refname_match(branch->merge[i]->src, refname, ref_fetch_rules); |
cf818348 | 1346 | } |
d71ab174 | 1347 | |
4577370e | 1348 | static struct ref *get_expanded_map(const struct ref *remote_refs, |
d71ab174 DB |
1349 | const struct refspec *refspec) |
1350 | { | |
4577370e | 1351 | const struct ref *ref; |
d71ab174 DB |
1352 | struct ref *ret = NULL; |
1353 | struct ref **tail = &ret; | |
1354 | ||
e928213f | 1355 | char *expn_name; |
d71ab174 DB |
1356 | |
1357 | for (ref = remote_refs; ref; ref = ref->next) { | |
1358 | if (strchr(ref->name, '^')) | |
1359 | continue; /* a dereference item */ | |
e928213f DB |
1360 | if (match_name_with_pattern(refspec->src, ref->name, |
1361 | refspec->dst, &expn_name)) { | |
d71ab174 | 1362 | struct ref *cpy = copy_ref(ref); |
d71ab174 | 1363 | |
e928213f DB |
1364 | cpy->peer_ref = alloc_ref(expn_name); |
1365 | free(expn_name); | |
d71ab174 DB |
1366 | if (refspec->force) |
1367 | cpy->peer_ref->force = 1; | |
1368 | *tail = cpy; | |
1369 | tail = &cpy->next; | |
1370 | } | |
1371 | } | |
1372 | ||
1373 | return ret; | |
1374 | } | |
1375 | ||
4577370e | 1376 | static const struct ref *find_ref_by_name_abbrev(const struct ref *refs, const char *name) |
d71ab174 | 1377 | { |
4577370e | 1378 | const struct ref *ref; |
d71ab174 | 1379 | for (ref = refs; ref; ref = ref->next) { |
605b4978 | 1380 | if (refname_match(name, ref->name, ref_fetch_rules)) |
d71ab174 DB |
1381 | return ref; |
1382 | } | |
1383 | return NULL; | |
1384 | } | |
1385 | ||
4577370e | 1386 | struct ref *get_remote_ref(const struct ref *remote_refs, const char *name) |
d71ab174 | 1387 | { |
4577370e | 1388 | const struct ref *ref = find_ref_by_name_abbrev(remote_refs, name); |
d71ab174 DB |
1389 | |
1390 | if (!ref) | |
9ad7c5ae | 1391 | return NULL; |
d71ab174 DB |
1392 | |
1393 | return copy_ref(ref); | |
1394 | } | |
1395 | ||
1396 | static struct ref *get_local_ref(const char *name) | |
1397 | { | |
3eb96997 | 1398 | if (!name || name[0] == '\0') |
d71ab174 DB |
1399 | return NULL; |
1400 | ||
59c69c0c RS |
1401 | if (!prefixcmp(name, "refs/")) |
1402 | return alloc_ref(name); | |
d71ab174 DB |
1403 | |
1404 | if (!prefixcmp(name, "heads/") || | |
1405 | !prefixcmp(name, "tags/") || | |
8009768e RS |
1406 | !prefixcmp(name, "remotes/")) |
1407 | return alloc_ref_with_prefix("refs/", 5, name); | |
d71ab174 | 1408 | |
8009768e | 1409 | return alloc_ref_with_prefix("refs/heads/", 11, name); |
d71ab174 DB |
1410 | } |
1411 | ||
4577370e | 1412 | int get_fetch_map(const struct ref *remote_refs, |
d71ab174 | 1413 | const struct refspec *refspec, |
9ad7c5ae JH |
1414 | struct ref ***tail, |
1415 | int missing_ok) | |
d71ab174 | 1416 | { |
ef00d150 | 1417 | struct ref *ref_map, **rmp; |
d71ab174 DB |
1418 | |
1419 | if (refspec->pattern) { | |
1420 | ref_map = get_expanded_map(remote_refs, refspec); | |
1421 | } else { | |
9ad7c5ae JH |
1422 | const char *name = refspec->src[0] ? refspec->src : "HEAD"; |
1423 | ||
1424 | ref_map = get_remote_ref(remote_refs, name); | |
1425 | if (!missing_ok && !ref_map) | |
1426 | die("Couldn't find remote ref %s", name); | |
1427 | if (ref_map) { | |
1428 | ref_map->peer_ref = get_local_ref(refspec->dst); | |
1429 | if (ref_map->peer_ref && refspec->force) | |
1430 | ref_map->peer_ref->force = 1; | |
1431 | } | |
d71ab174 DB |
1432 | } |
1433 | ||
ef00d150 DB |
1434 | for (rmp = &ref_map; *rmp; ) { |
1435 | if ((*rmp)->peer_ref) { | |
8d9c5010 MH |
1436 | if (check_refname_format((*rmp)->peer_ref->name + 5, |
1437 | REFNAME_ALLOW_ONELEVEL)) { | |
ef00d150 DB |
1438 | struct ref *ignore = *rmp; |
1439 | error("* Ignoring funny ref '%s' locally", | |
1440 | (*rmp)->peer_ref->name); | |
1441 | *rmp = (*rmp)->next; | |
1442 | free(ignore->peer_ref); | |
1443 | free(ignore); | |
1444 | continue; | |
1445 | } | |
1446 | } | |
1447 | rmp = &((*rmp)->next); | |
d71ab174 DB |
1448 | } |
1449 | ||
8f70a765 AR |
1450 | if (ref_map) |
1451 | tail_link_ref(ref_map, tail); | |
d71ab174 DB |
1452 | |
1453 | return 0; | |
1454 | } | |
be885d96 DB |
1455 | |
1456 | int resolve_remote_symref(struct ref *ref, struct ref *list) | |
1457 | { | |
1458 | if (!ref->symref) | |
1459 | return 0; | |
1460 | for (; list; list = list->next) | |
1461 | if (!strcmp(ref->symref, list->name)) { | |
1462 | hashcpy(ref->old_sha1, list->old_sha1); | |
1463 | return 0; | |
1464 | } | |
1465 | return 1; | |
1466 | } | |
6d21bf96 | 1467 | |
ec8452d5 JS |
1468 | static void unmark_and_free(struct commit_list *list, unsigned int mark) |
1469 | { | |
1470 | while (list) { | |
1471 | struct commit_list *temp = list; | |
1472 | temp->item->object.flags &= ~mark; | |
1473 | list = temp->next; | |
1474 | free(temp); | |
1475 | } | |
1476 | } | |
1477 | ||
1478 | int ref_newer(const unsigned char *new_sha1, const unsigned char *old_sha1) | |
1479 | { | |
1480 | struct object *o; | |
1481 | struct commit *old, *new; | |
1482 | struct commit_list *list, *used; | |
1483 | int found = 0; | |
1484 | ||
1485 | /* Both new and old must be commit-ish and new is descendant of | |
1486 | * old. Otherwise we require --force. | |
1487 | */ | |
1488 | o = deref_tag(parse_object(old_sha1), NULL, 0); | |
1489 | if (!o || o->type != OBJ_COMMIT) | |
1490 | return 0; | |
1491 | old = (struct commit *) o; | |
1492 | ||
1493 | o = deref_tag(parse_object(new_sha1), NULL, 0); | |
1494 | if (!o || o->type != OBJ_COMMIT) | |
1495 | return 0; | |
1496 | new = (struct commit *) o; | |
1497 | ||
1498 | if (parse_commit(new) < 0) | |
1499 | return 0; | |
1500 | ||
1501 | used = list = NULL; | |
1502 | commit_list_insert(new, &list); | |
1503 | while (list) { | |
1504 | new = pop_most_recent_commit(&list, TMP_MARK); | |
1505 | commit_list_insert(new, &used); | |
1506 | if (new == old) { | |
1507 | found = 1; | |
1508 | break; | |
1509 | } | |
1510 | } | |
1511 | unmark_and_free(list, TMP_MARK); | |
1512 | unmark_and_free(used, TMP_MARK); | |
1513 | return found; | |
1514 | } | |
1515 | ||
6d21bf96 JH |
1516 | /* |
1517 | * Return true if there is anything to report, otherwise false. | |
1518 | */ | |
1519 | int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs) | |
1520 | { | |
1521 | unsigned char sha1[20]; | |
1522 | struct commit *ours, *theirs; | |
1523 | char symmetric[84]; | |
1524 | struct rev_info revs; | |
1525 | const char *rev_argv[10], *base; | |
1526 | int rev_argc; | |
1527 | ||
1528 | /* | |
1529 | * Nothing to report unless we are marked to build on top of | |
1530 | * somebody else. | |
1531 | */ | |
1532 | if (!branch || | |
1533 | !branch->merge || !branch->merge[0] || !branch->merge[0]->dst) | |
1534 | return 0; | |
1535 | ||
1536 | /* | |
1537 | * If what we used to build on no longer exists, there is | |
1538 | * nothing to report. | |
1539 | */ | |
1540 | base = branch->merge[0]->dst; | |
c6893323 | 1541 | if (read_ref(base, sha1)) |
6d21bf96 | 1542 | return 0; |
57ffc5f8 | 1543 | theirs = lookup_commit_reference(sha1); |
6d21bf96 JH |
1544 | if (!theirs) |
1545 | return 0; | |
1546 | ||
c6893323 | 1547 | if (read_ref(branch->refname, sha1)) |
6d21bf96 | 1548 | return 0; |
57ffc5f8 | 1549 | ours = lookup_commit_reference(sha1); |
6d21bf96 JH |
1550 | if (!ours) |
1551 | return 0; | |
1552 | ||
1553 | /* are we the same? */ | |
1554 | if (theirs == ours) | |
1555 | return 0; | |
1556 | ||
8fbf879e | 1557 | /* Run "rev-list --left-right ours...theirs" internally... */ |
6d21bf96 JH |
1558 | rev_argc = 0; |
1559 | rev_argv[rev_argc++] = NULL; | |
1560 | rev_argv[rev_argc++] = "--left-right"; | |
1561 | rev_argv[rev_argc++] = symmetric; | |
1562 | rev_argv[rev_argc++] = "--"; | |
1563 | rev_argv[rev_argc] = NULL; | |
1564 | ||
1565 | strcpy(symmetric, sha1_to_hex(ours->object.sha1)); | |
1566 | strcpy(symmetric + 40, "..."); | |
1567 | strcpy(symmetric + 43, sha1_to_hex(theirs->object.sha1)); | |
1568 | ||
1569 | init_revisions(&revs, NULL); | |
1570 | setup_revisions(rev_argc, rev_argv, &revs, NULL); | |
1571 | prepare_revision_walk(&revs); | |
1572 | ||
1573 | /* ... and count the commits on each side. */ | |
1574 | *num_ours = 0; | |
1575 | *num_theirs = 0; | |
1576 | while (1) { | |
1577 | struct commit *c = get_revision(&revs); | |
1578 | if (!c) | |
1579 | break; | |
1580 | if (c->object.flags & SYMMETRIC_LEFT) | |
1581 | (*num_ours)++; | |
1582 | else | |
1583 | (*num_theirs)++; | |
1584 | } | |
c0234b2e JH |
1585 | |
1586 | /* clear object flags smudged by the above traversal */ | |
1587 | clear_commit_marks(ours, ALL_REV_FLAGS); | |
1588 | clear_commit_marks(theirs, ALL_REV_FLAGS); | |
6d21bf96 JH |
1589 | return 1; |
1590 | } | |
1591 | ||
1592 | /* | |
1593 | * Return true when there is anything to report, otherwise false. | |
1594 | */ | |
1595 | int format_tracking_info(struct branch *branch, struct strbuf *sb) | |
1596 | { | |
1597 | int num_ours, num_theirs; | |
4de53ce0 | 1598 | const char *base; |
6d21bf96 JH |
1599 | |
1600 | if (!stat_tracking_info(branch, &num_ours, &num_theirs)) | |
1601 | return 0; | |
1602 | ||
1603 | base = branch->merge[0]->dst; | |
45972ffb | 1604 | base = shorten_unambiguous_ref(base, 0); |
6d21bf96 | 1605 | if (!num_theirs) |
8a5b7494 JX |
1606 | strbuf_addf(sb, |
1607 | Q_("Your branch is ahead of '%s' by %d commit.\n", | |
1608 | "Your branch is ahead of '%s' by %d commits.\n", | |
1609 | num_ours), | |
1610 | base, num_ours); | |
6d21bf96 | 1611 | else if (!num_ours) |
8a5b7494 JX |
1612 | strbuf_addf(sb, |
1613 | Q_("Your branch is behind '%s' by %d commit, " | |
1614 | "and can be fast-forwarded.\n", | |
1615 | "Your branch is behind '%s' by %d commits, " | |
1616 | "and can be fast-forwarded.\n", | |
1617 | num_theirs), | |
1618 | base, num_theirs); | |
6d21bf96 | 1619 | else |
8a5b7494 JX |
1620 | strbuf_addf(sb, |
1621 | Q_("Your branch and '%s' have diverged,\n" | |
1622 | "and have %d and %d different commit each, " | |
1623 | "respectively.\n", | |
1624 | "Your branch and '%s' have diverged,\n" | |
1625 | "and have %d and %d different commits each, " | |
1626 | "respectively.\n", | |
1627 | num_theirs), | |
1628 | base, num_ours, num_theirs); | |
6d21bf96 JH |
1629 | return 1; |
1630 | } | |
454e2025 JS |
1631 | |
1632 | static int one_local_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) | |
1633 | { | |
1634 | struct ref ***local_tail = cb_data; | |
1635 | struct ref *ref; | |
1636 | int len; | |
1637 | ||
1638 | /* we already know it starts with refs/ to get here */ | |
8d9c5010 | 1639 | if (check_refname_format(refname + 5, 0)) |
454e2025 JS |
1640 | return 0; |
1641 | ||
1642 | len = strlen(refname) + 1; | |
1643 | ref = xcalloc(1, sizeof(*ref) + len); | |
1644 | hashcpy(ref->new_sha1, sha1); | |
1645 | memcpy(ref->name, refname, len); | |
1646 | **local_tail = ref; | |
1647 | *local_tail = &ref->next; | |
1648 | return 0; | |
1649 | } | |
1650 | ||
1651 | struct ref *get_local_heads(void) | |
1652 | { | |
55f0566f | 1653 | struct ref *local_refs = NULL, **local_tail = &local_refs; |
454e2025 JS |
1654 | for_each_ref(one_local_ref, &local_tail); |
1655 | return local_refs; | |
1656 | } | |
8ef51733 | 1657 | |
4229f1fa JS |
1658 | struct ref *guess_remote_head(const struct ref *head, |
1659 | const struct ref *refs, | |
1660 | int all) | |
8ef51733 | 1661 | { |
8ef51733 | 1662 | const struct ref *r; |
4229f1fa JS |
1663 | struct ref *list = NULL; |
1664 | struct ref **tail = &list; | |
8ef51733 | 1665 | |
6cb4e6cc | 1666 | if (!head) |
8ef51733 JS |
1667 | return NULL; |
1668 | ||
fbb074c2 JK |
1669 | /* |
1670 | * Some transports support directly peeking at | |
1671 | * where HEAD points; if that is the case, then | |
1672 | * we don't have to guess. | |
1673 | */ | |
1674 | if (head->symref) | |
1675 | return copy_ref(find_ref_by_name(refs, head->symref)); | |
1676 | ||
8ef51733 | 1677 | /* If refs/heads/master could be right, it is. */ |
4229f1fa JS |
1678 | if (!all) { |
1679 | r = find_ref_by_name(refs, "refs/heads/master"); | |
1680 | if (r && !hashcmp(r->old_sha1, head->old_sha1)) | |
1681 | return copy_ref(r); | |
1682 | } | |
8ef51733 JS |
1683 | |
1684 | /* Look for another ref that points there */ | |
4229f1fa | 1685 | for (r = refs; r; r = r->next) { |
61adfd30 JK |
1686 | if (r != head && |
1687 | !prefixcmp(r->name, "refs/heads/") && | |
1688 | !hashcmp(r->old_sha1, head->old_sha1)) { | |
4229f1fa JS |
1689 | *tail = copy_ref(r); |
1690 | tail = &((*tail)->next); | |
1691 | if (!all) | |
1692 | break; | |
1693 | } | |
1694 | } | |
8ef51733 | 1695 | |
4229f1fa | 1696 | return list; |
8ef51733 | 1697 | } |
f2ef6075 JS |
1698 | |
1699 | struct stale_heads_info { | |
f2ef6075 JS |
1700 | struct string_list *ref_names; |
1701 | struct ref **stale_refs_tail; | |
ed43de6e CMN |
1702 | struct refspec *refs; |
1703 | int ref_count; | |
f2ef6075 JS |
1704 | }; |
1705 | ||
1706 | static int get_stale_heads_cb(const char *refname, | |
1707 | const unsigned char *sha1, int flags, void *cb_data) | |
1708 | { | |
1709 | struct stale_heads_info *info = cb_data; | |
ed43de6e CMN |
1710 | struct refspec query; |
1711 | memset(&query, 0, sizeof(struct refspec)); | |
1712 | query.dst = (char *)refname; | |
1713 | ||
1714 | if (query_refspecs(info->refs, info->ref_count, &query)) | |
1715 | return 0; /* No matches */ | |
1716 | ||
1717 | /* | |
1718 | * If we did find a suitable refspec and it's not a symref and | |
1719 | * it's not in the list of refs that currently exist in that | |
1720 | * remote we consider it to be stale. | |
1721 | */ | |
1722 | if (!((flags & REF_ISSYMREF) || | |
1723 | string_list_has_string(info->ref_names, query.src))) { | |
1724 | struct ref *ref = make_linked_ref(refname, &info->stale_refs_tail); | |
1725 | hashcpy(ref->new_sha1, sha1); | |
f2ef6075 | 1726 | } |
ed43de6e CMN |
1727 | |
1728 | free(query.src); | |
f2ef6075 JS |
1729 | return 0; |
1730 | } | |
1731 | ||
ed43de6e | 1732 | struct ref *get_stale_heads(struct refspec *refs, int ref_count, struct ref *fetch_map) |
f2ef6075 JS |
1733 | { |
1734 | struct ref *ref, *stale_refs = NULL; | |
183113a5 | 1735 | struct string_list ref_names = STRING_LIST_INIT_NODUP; |
f2ef6075 | 1736 | struct stale_heads_info info; |
f2ef6075 JS |
1737 | info.ref_names = &ref_names; |
1738 | info.stale_refs_tail = &stale_refs; | |
ed43de6e CMN |
1739 | info.refs = refs; |
1740 | info.ref_count = ref_count; | |
f2ef6075 | 1741 | for (ref = fetch_map; ref; ref = ref->next) |
1d2f80fa | 1742 | string_list_append(&ref_names, ref->name); |
f2ef6075 JS |
1743 | sort_string_list(&ref_names); |
1744 | for_each_ref(get_stale_heads_cb, &info); | |
1745 | string_list_clear(&ref_names, 0); | |
1746 | return stale_refs; | |
1747 | } |