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Commit | Line | Data |
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bfc9ca59 RB |
1 | /* |
2 | * Copyright (C) 2012 the libgit2 contributors | |
3 | * | |
4 | * This file is part of libgit2, distributed under the GNU GPL v2 with | |
5 | * a Linking Exception. For full terms see the included COPYING file. | |
6 | */ | |
7 | ||
8 | #include "common.h" | |
9 | #include "git2/config.h" | |
10 | #include "git2/types.h" | |
11 | #include "git2/repository.h" | |
12 | #include "git2/index.h" | |
13 | #include "git2/submodule.h" | |
14 | #include "buffer.h" | |
bfc9ca59 RB |
15 | #include "vector.h" |
16 | #include "posix.h" | |
17 | #include "config_file.h" | |
18 | #include "config.h" | |
19 | #include "repository.h" | |
aa13bf05 RB |
20 | #include "submodule.h" |
21 | #include "tree.h" | |
22 | #include "iterator.h" | |
23 | ||
24 | #define GIT_MODULES_FILE ".gitmodules" | |
bfc9ca59 | 25 | |
95dfb031 RB |
26 | static git_cvar_map _sm_update_map[] = { |
27 | {GIT_CVAR_STRING, "checkout", GIT_SUBMODULE_UPDATE_CHECKOUT}, | |
28 | {GIT_CVAR_STRING, "rebase", GIT_SUBMODULE_UPDATE_REBASE}, | |
aa13bf05 RB |
29 | {GIT_CVAR_STRING, "merge", GIT_SUBMODULE_UPDATE_MERGE}, |
30 | {GIT_CVAR_STRING, "none", GIT_SUBMODULE_UPDATE_NONE}, | |
bfc9ca59 RB |
31 | }; |
32 | ||
95dfb031 | 33 | static git_cvar_map _sm_ignore_map[] = { |
aa13bf05 | 34 | {GIT_CVAR_STRING, "none", GIT_SUBMODULE_IGNORE_NONE}, |
95dfb031 | 35 | {GIT_CVAR_STRING, "untracked", GIT_SUBMODULE_IGNORE_UNTRACKED}, |
aa13bf05 RB |
36 | {GIT_CVAR_STRING, "dirty", GIT_SUBMODULE_IGNORE_DIRTY}, |
37 | {GIT_CVAR_STRING, "all", GIT_SUBMODULE_IGNORE_ALL}, | |
bfc9ca59 RB |
38 | }; |
39 | ||
72ee0787 | 40 | static kh_inline khint_t str_hash_no_trailing_slash(const char *s) |
bfc9ca59 | 41 | { |
01fed0a8 | 42 | khint_t h; |
bfc9ca59 | 43 | |
01fed0a8 | 44 | for (h = 0; *s; ++s) |
5f4a61ae | 45 | if (s[1] != '\0' || *s != '/') |
01fed0a8 | 46 | h = (h << 5) - h + *s; |
bfc9ca59 | 47 | |
01fed0a8 | 48 | return h; |
bfc9ca59 RB |
49 | } |
50 | ||
72ee0787 | 51 | static kh_inline int str_equal_no_trailing_slash(const char *a, const char *b) |
bfc9ca59 | 52 | { |
01fed0a8 RB |
53 | size_t alen = a ? strlen(a) : 0; |
54 | size_t blen = b ? strlen(b) : 0; | |
bfc9ca59 | 55 | |
5f4a61ae | 56 | if (alen > 0 && a[alen - 1] == '/') |
bfc9ca59 | 57 | alen--; |
5f4a61ae | 58 | if (blen > 0 && b[blen - 1] == '/') |
bfc9ca59 RB |
59 | blen--; |
60 | ||
01fed0a8 | 61 | return (alen == blen && strncmp(a, b, alen) == 0); |
bfc9ca59 RB |
62 | } |
63 | ||
aa13bf05 RB |
64 | __KHASH_IMPL( |
65 | str, static kh_inline, const char *, void *, 1, | |
66 | str_hash_no_trailing_slash, str_equal_no_trailing_slash); | |
67 | ||
5f4a61ae RB |
68 | static int load_submodule_config(git_repository *repo, bool force); |
69 | static git_config_file *open_gitmodules(git_repository *, bool, const git_oid *); | |
70 | static int lookup_head_remote(git_buf *url, git_repository *repo); | |
71 | static int submodule_get(git_submodule **, git_repository *, const char *, const char *); | |
72 | static void submodule_release(git_submodule *sm, int decr); | |
73 | static int submodule_load_from_index(git_repository *, const git_index_entry *); | |
74 | static int submodule_load_from_head(git_repository*, const char*, const git_oid*); | |
75 | static int submodule_load_from_config(const char *, const char *, void *); | |
76 | static int submodule_load_from_wd_lite(git_submodule *, const char *, void *); | |
77 | static int submodule_update_config(git_submodule *, const char *, const char *, bool, bool); | |
78 | static void submodule_mode_mismatch(git_repository *, const char *, unsigned int); | |
79 | static int submodule_index_status(unsigned int *status, git_submodule *sm); | |
80 | static int submodule_wd_status(unsigned int *status, git_submodule *sm); | |
aa13bf05 RB |
81 | |
82 | static int submodule_cmp(const void *a, const void *b) | |
83 | { | |
84 | return strcmp(((git_submodule *)a)->name, ((git_submodule *)b)->name); | |
85 | } | |
86 | ||
87 | static int submodule_config_key_trunc_puts(git_buf *key, const char *suffix) | |
88 | { | |
89 | ssize_t idx = git_buf_rfind(key, '.'); | |
90 | git_buf_truncate(key, (size_t)(idx + 1)); | |
91 | return git_buf_puts(key, suffix); | |
92 | } | |
93 | ||
94 | /* | |
95 | * PUBLIC APIS | |
96 | */ | |
97 | ||
98 | int git_submodule_lookup( | |
99 | git_submodule **sm_ptr, /* NULL if user only wants to test existence */ | |
100 | git_repository *repo, | |
101 | const char *name) /* trailing slash is allowed */ | |
102 | { | |
103 | int error; | |
104 | khiter_t pos; | |
105 | ||
106 | assert(repo && name); | |
107 | ||
108 | if ((error = load_submodule_config(repo, false)) < 0) | |
109 | return error; | |
110 | ||
111 | pos = git_strmap_lookup_index(repo->submodules, name); | |
112 | ||
113 | if (!git_strmap_valid_index(repo->submodules, pos)) { | |
114 | error = GIT_ENOTFOUND; | |
115 | ||
116 | /* check if a plausible submodule exists at path */ | |
117 | if (git_repository_workdir(repo)) { | |
118 | git_buf path = GIT_BUF_INIT; | |
119 | ||
120 | if (git_buf_joinpath(&path, git_repository_workdir(repo), name) < 0) | |
121 | return -1; | |
122 | ||
123 | if (git_path_contains_dir(&path, DOT_GIT)) | |
124 | error = GIT_EEXISTS; | |
125 | ||
126 | git_buf_free(&path); | |
127 | } | |
128 | ||
129 | return error; | |
130 | } | |
131 | ||
132 | if (sm_ptr) | |
133 | *sm_ptr = git_strmap_value_at(repo->submodules, pos); | |
134 | ||
135 | return 0; | |
136 | } | |
01fed0a8 | 137 | |
aa13bf05 RB |
138 | int git_submodule_foreach( |
139 | git_repository *repo, | |
140 | int (*callback)(git_submodule *sm, const char *name, void *payload), | |
141 | void *payload) | |
142 | { | |
143 | int error; | |
144 | git_submodule *sm; | |
145 | git_vector seen = GIT_VECTOR_INIT; | |
146 | seen._cmp = submodule_cmp; | |
147 | ||
148 | assert(repo && callback); | |
149 | ||
150 | if ((error = load_submodule_config(repo, false)) < 0) | |
151 | return error; | |
152 | ||
153 | git_strmap_foreach_value(repo->submodules, sm, { | |
154 | /* Usually the following will not come into play - it just prevents | |
155 | * us from issuing a callback twice for a submodule where the name | |
156 | * and path are not the same. | |
157 | */ | |
158 | if (sm->refcount > 1) { | |
159 | if (git_vector_bsearch(&seen, sm) != GIT_ENOTFOUND) | |
160 | continue; | |
161 | if ((error = git_vector_insert(&seen, sm)) < 0) | |
162 | break; | |
163 | } | |
164 | ||
5f4a61ae | 165 | if (callback(sm, sm->name, payload)) { |
f335ecd6 | 166 | giterr_clear(); |
5f4a61ae | 167 | error = GIT_EUSER; |
aa13bf05 | 168 | break; |
5f4a61ae | 169 | } |
aa13bf05 RB |
170 | }); |
171 | ||
172 | git_vector_free(&seen); | |
173 | ||
174 | return error; | |
175 | } | |
176 | ||
177 | void git_submodule_config_free(git_repository *repo) | |
178 | { | |
179 | git_strmap *smcfg; | |
180 | git_submodule *sm; | |
181 | ||
182 | assert(repo); | |
183 | ||
184 | smcfg = repo->submodules; | |
185 | repo->submodules = NULL; | |
186 | ||
187 | if (smcfg == NULL) | |
188 | return; | |
189 | ||
190 | git_strmap_foreach_value(smcfg, sm, { | |
191 | submodule_release(sm,1); | |
192 | }); | |
193 | git_strmap_free(smcfg); | |
194 | } | |
195 | ||
196 | int git_submodule_add_setup( | |
197 | git_submodule **submodule, | |
198 | git_repository *repo, | |
199 | const char *url, | |
200 | const char *path, | |
201 | int use_gitlink) | |
202 | { | |
203 | int error = 0; | |
204 | git_config_file *mods = NULL; | |
205 | git_submodule *sm; | |
206 | git_buf name = GIT_BUF_INIT, real_url = GIT_BUF_INIT; | |
207 | git_repository_init_options initopt; | |
208 | git_repository *subrepo = NULL; | |
209 | ||
210 | assert(repo && url && path); | |
211 | ||
212 | /* see if there is already an entry for this submodule */ | |
213 | ||
214 | if (git_submodule_lookup(&sm, repo, path) < 0) | |
215 | giterr_clear(); | |
216 | else { | |
217 | giterr_set(GITERR_SUBMODULE, | |
218 | "Attempt to add a submodule that already exists"); | |
219 | return GIT_EEXISTS; | |
220 | } | |
221 | ||
222 | /* resolve parameters */ | |
223 | ||
224 | if (url[0] == '.' && (url[1] == '/' || (url[1] == '.' && url[2] == '/'))) { | |
225 | if (!(error = lookup_head_remote(&real_url, repo))) | |
226 | error = git_path_apply_relative(&real_url, url); | |
227 | } else if (strchr(url, ':') != NULL || url[0] == '/') { | |
228 | error = git_buf_sets(&real_url, url); | |
229 | } else { | |
230 | giterr_set(GITERR_SUBMODULE, "Invalid format for submodule URL"); | |
231 | error = -1; | |
232 | } | |
233 | if (error) | |
234 | goto cleanup; | |
235 | ||
236 | /* validate and normalize path */ | |
237 | ||
238 | if (git__prefixcmp(path, git_repository_workdir(repo)) == 0) | |
239 | path += strlen(git_repository_workdir(repo)); | |
240 | ||
241 | if (git_path_root(path) >= 0) { | |
242 | giterr_set(GITERR_SUBMODULE, "Submodule path must be a relative path"); | |
243 | error = -1; | |
244 | goto cleanup; | |
245 | } | |
246 | ||
247 | /* update .gitmodules */ | |
248 | ||
249 | if ((mods = open_gitmodules(repo, true, NULL)) == NULL) { | |
250 | giterr_set(GITERR_SUBMODULE, | |
251 | "Adding submodules to a bare repository is not supported (for now)"); | |
252 | return -1; | |
253 | } | |
254 | ||
255 | if ((error = git_buf_printf(&name, "submodule.%s.path", path)) < 0 || | |
256 | (error = git_config_file_set_string(mods, name.ptr, path)) < 0) | |
257 | goto cleanup; | |
258 | ||
259 | if ((error = submodule_config_key_trunc_puts(&name, "url")) < 0 || | |
260 | (error = git_config_file_set_string(mods, name.ptr, real_url.ptr)) < 0) | |
261 | goto cleanup; | |
262 | ||
263 | git_buf_clear(&name); | |
264 | ||
265 | /* init submodule repository and add origin remote as needed */ | |
266 | ||
267 | error = git_buf_joinpath(&name, git_repository_workdir(repo), path); | |
268 | if (error < 0) | |
269 | goto cleanup; | |
270 | ||
271 | /* New style: sub-repo goes in <repo-dir>/modules/<name>/ with a | |
272 | * gitlink in the sub-repo workdir directory to that repository | |
273 | * | |
274 | * Old style: sub-repo goes directly into repo/<name>/.git/ | |
275 | */ | |
276 | ||
277 | memset(&initopt, 0, sizeof(initopt)); | |
278 | initopt.flags = GIT_REPOSITORY_INIT_MKPATH | | |
279 | GIT_REPOSITORY_INIT_NO_REINIT; | |
280 | initopt.origin_url = real_url.ptr; | |
281 | ||
282 | if (git_path_exists(name.ptr) && | |
283 | git_path_contains(&name, DOT_GIT)) | |
284 | { | |
285 | /* repo appears to already exist - reinit? */ | |
286 | } | |
287 | else if (use_gitlink) { | |
288 | git_buf repodir = GIT_BUF_INIT; | |
289 | ||
290 | error = git_buf_join_n( | |
291 | &repodir, '/', 3, git_repository_path(repo), "modules", path); | |
292 | if (error < 0) | |
293 | goto cleanup; | |
294 | ||
295 | initopt.workdir_path = name.ptr; | |
296 | initopt.flags |= GIT_REPOSITORY_INIT_NO_DOTGIT_DIR; | |
297 | ||
298 | error = git_repository_init_ext(&subrepo, repodir.ptr, &initopt); | |
299 | ||
300 | git_buf_free(&repodir); | |
301 | } | |
302 | else { | |
303 | error = git_repository_init_ext(&subrepo, name.ptr, &initopt); | |
304 | } | |
305 | if (error < 0) | |
306 | goto cleanup; | |
307 | ||
308 | /* add submodule to hash and "reload" it */ | |
309 | ||
0c8858de RB |
310 | if (!(error = submodule_get(&sm, repo, path, NULL)) && |
311 | !(error = git_submodule_reload(sm))) | |
312 | error = git_submodule_init(sm, false); | |
aa13bf05 RB |
313 | |
314 | cleanup: | |
315 | if (submodule != NULL) | |
316 | *submodule = !error ? sm : NULL; | |
317 | ||
318 | if (mods != NULL) | |
319 | git_config_file_free(mods); | |
320 | git_repository_free(subrepo); | |
321 | git_buf_free(&real_url); | |
322 | git_buf_free(&name); | |
323 | ||
324 | return error; | |
325 | } | |
326 | ||
327 | int git_submodule_add_finalize(git_submodule *sm) | |
328 | { | |
329 | int error; | |
330 | git_index *index; | |
331 | ||
332 | assert(sm); | |
333 | ||
334 | if ((error = git_repository_index__weakptr(&index, sm->owner)) < 0 || | |
335 | (error = git_index_add(index, GIT_MODULES_FILE, 0)) < 0) | |
336 | return error; | |
337 | ||
5f4a61ae | 338 | return git_submodule_add_to_index(sm, true); |
aa13bf05 RB |
339 | } |
340 | ||
5f4a61ae | 341 | int git_submodule_add_to_index(git_submodule *sm, int write_index) |
aa13bf05 RB |
342 | { |
343 | int error; | |
344 | git_repository *repo, *sm_repo; | |
345 | git_index *index; | |
346 | git_buf path = GIT_BUF_INIT; | |
347 | git_commit *head; | |
348 | git_index_entry entry; | |
349 | struct stat st; | |
350 | ||
351 | assert(sm); | |
352 | ||
353 | repo = sm->owner; | |
354 | ||
5f4a61ae RB |
355 | /* force reload of wd OID by git_submodule_open */ |
356 | sm->flags = sm->flags & ~GIT_SUBMODULE_STATUS__WD_OID_VALID; | |
357 | ||
aa13bf05 RB |
358 | if ((error = git_repository_index__weakptr(&index, repo)) < 0 || |
359 | (error = git_buf_joinpath( | |
360 | &path, git_repository_workdir(repo), sm->path)) < 0 || | |
361 | (error = git_submodule_open(&sm_repo, sm)) < 0) | |
362 | goto cleanup; | |
363 | ||
364 | /* read stat information for submodule working directory */ | |
365 | if (p_stat(path.ptr, &st) < 0) { | |
366 | giterr_set(GITERR_SUBMODULE, | |
367 | "Cannot add submodule without working directory"); | |
368 | error = -1; | |
369 | goto cleanup; | |
370 | } | |
97a17e4e RB |
371 | |
372 | memset(&entry, 0, sizeof(entry)); | |
5f4a61ae | 373 | entry.path = sm->path; |
aa13bf05 RB |
374 | git_index__init_entry_from_stat(&st, &entry); |
375 | ||
376 | /* calling git_submodule_open will have set sm->wd_oid if possible */ | |
377 | if ((sm->flags & GIT_SUBMODULE_STATUS__WD_OID_VALID) == 0) { | |
378 | giterr_set(GITERR_SUBMODULE, | |
379 | "Cannot add submodule without HEAD to index"); | |
380 | error = -1; | |
381 | goto cleanup; | |
382 | } | |
383 | git_oid_cpy(&entry.oid, &sm->wd_oid); | |
384 | ||
385 | if ((error = git_commit_lookup(&head, sm_repo, &sm->wd_oid)) < 0) | |
386 | goto cleanup; | |
387 | ||
388 | entry.ctime.seconds = git_commit_time(head); | |
389 | entry.ctime.nanoseconds = 0; | |
390 | entry.mtime.seconds = git_commit_time(head); | |
391 | entry.mtime.nanoseconds = 0; | |
392 | ||
393 | git_commit_free(head); | |
394 | ||
5f4a61ae | 395 | /* add it */ |
aa13bf05 RB |
396 | error = git_index_add2(index, &entry); |
397 | ||
5f4a61ae RB |
398 | /* write it, if requested */ |
399 | if (!error && write_index) { | |
400 | error = git_index_write(index); | |
401 | ||
402 | if (!error) | |
403 | git_oid_cpy(&sm->index_oid, &sm->wd_oid); | |
404 | } | |
405 | ||
aa13bf05 RB |
406 | cleanup: |
407 | git_repository_free(sm_repo); | |
408 | git_buf_free(&path); | |
409 | return error; | |
410 | } | |
411 | ||
412 | int git_submodule_save(git_submodule *submodule) | |
413 | { | |
414 | int error = 0; | |
415 | git_config_file *mods; | |
416 | git_buf key = GIT_BUF_INIT; | |
417 | ||
418 | assert(submodule); | |
419 | ||
420 | mods = open_gitmodules(submodule->owner, true, NULL); | |
421 | if (!mods) { | |
422 | giterr_set(GITERR_SUBMODULE, | |
423 | "Adding submodules to a bare repository is not supported (for now)"); | |
424 | return -1; | |
425 | } | |
426 | ||
427 | if ((error = git_buf_printf(&key, "submodule.%s.", submodule->name)) < 0) | |
428 | goto cleanup; | |
429 | ||
430 | /* save values for path, url, update, ignore, fetchRecurseSubmodules */ | |
431 | ||
432 | if ((error = submodule_config_key_trunc_puts(&key, "path")) < 0 || | |
433 | (error = git_config_file_set_string(mods, key.ptr, submodule->path)) < 0) | |
434 | goto cleanup; | |
435 | ||
436 | if ((error = submodule_config_key_trunc_puts(&key, "url")) < 0 || | |
437 | (error = git_config_file_set_string(mods, key.ptr, submodule->url)) < 0) | |
438 | goto cleanup; | |
439 | ||
440 | if (!(error = submodule_config_key_trunc_puts(&key, "update")) && | |
441 | submodule->update != GIT_SUBMODULE_UPDATE_DEFAULT) | |
442 | { | |
443 | const char *val = (submodule->update == GIT_SUBMODULE_UPDATE_CHECKOUT) ? | |
444 | NULL : _sm_update_map[submodule->update].str_match; | |
445 | error = git_config_file_set_string(mods, key.ptr, val); | |
446 | } | |
447 | if (error < 0) | |
448 | goto cleanup; | |
449 | ||
450 | if (!(error = submodule_config_key_trunc_puts(&key, "ignore")) && | |
451 | submodule->ignore != GIT_SUBMODULE_IGNORE_DEFAULT) | |
452 | { | |
453 | const char *val = (submodule->ignore == GIT_SUBMODULE_IGNORE_NONE) ? | |
454 | NULL : _sm_ignore_map[submodule->ignore].str_match; | |
455 | error = git_config_file_set_string(mods, key.ptr, val); | |
456 | } | |
457 | if (error < 0) | |
458 | goto cleanup; | |
459 | ||
460 | if ((error = submodule_config_key_trunc_puts( | |
461 | &key, "fetchRecurseSubmodules")) < 0 || | |
462 | (error = git_config_file_set_string( | |
463 | mods, key.ptr, submodule->fetch_recurse ? "true" : "false")) < 0) | |
464 | goto cleanup; | |
465 | ||
466 | /* update internal defaults */ | |
467 | ||
468 | submodule->ignore_default = submodule->ignore; | |
469 | submodule->update_default = submodule->update; | |
470 | submodule->flags |= GIT_SUBMODULE_STATUS_IN_CONFIG; | |
471 | ||
472 | cleanup: | |
473 | if (mods != NULL) | |
474 | git_config_file_free(mods); | |
475 | git_buf_free(&key); | |
476 | ||
477 | return error; | |
478 | } | |
479 | ||
480 | git_repository *git_submodule_owner(git_submodule *submodule) | |
481 | { | |
482 | assert(submodule); | |
483 | return submodule->owner; | |
484 | } | |
485 | ||
486 | const char *git_submodule_name(git_submodule *submodule) | |
487 | { | |
488 | assert(submodule); | |
489 | return submodule->name; | |
490 | } | |
491 | ||
492 | const char *git_submodule_path(git_submodule *submodule) | |
493 | { | |
494 | assert(submodule); | |
495 | return submodule->path; | |
496 | } | |
497 | ||
498 | const char *git_submodule_url(git_submodule *submodule) | |
499 | { | |
500 | assert(submodule); | |
501 | return submodule->url; | |
502 | } | |
503 | ||
504 | int git_submodule_set_url(git_submodule *submodule, const char *url) | |
505 | { | |
506 | assert(submodule && url); | |
507 | ||
508 | git__free(submodule->url); | |
509 | ||
510 | submodule->url = git__strdup(url); | |
511 | GITERR_CHECK_ALLOC(submodule->url); | |
512 | ||
513 | return 0; | |
514 | } | |
515 | ||
5f4a61ae | 516 | const git_oid *git_submodule_index_oid(git_submodule *submodule) |
aa13bf05 RB |
517 | { |
518 | assert(submodule); | |
519 | ||
520 | if (submodule->flags & GIT_SUBMODULE_STATUS__INDEX_OID_VALID) | |
521 | return &submodule->index_oid; | |
522 | else | |
523 | return NULL; | |
524 | } | |
525 | ||
526 | const git_oid *git_submodule_head_oid(git_submodule *submodule) | |
527 | { | |
528 | assert(submodule); | |
529 | ||
530 | if (submodule->flags & GIT_SUBMODULE_STATUS__HEAD_OID_VALID) | |
531 | return &submodule->head_oid; | |
532 | else | |
533 | return NULL; | |
534 | } | |
535 | ||
536 | const git_oid *git_submodule_wd_oid(git_submodule *submodule) | |
537 | { | |
538 | assert(submodule); | |
539 | ||
540 | if (!(submodule->flags & GIT_SUBMODULE_STATUS__WD_OID_VALID)) { | |
541 | git_repository *subrepo; | |
542 | ||
543 | /* calling submodule open grabs the HEAD OID if possible */ | |
544 | if (!git_submodule_open(&subrepo, submodule)) | |
545 | git_repository_free(subrepo); | |
5f4a61ae RB |
546 | else |
547 | giterr_clear(); | |
aa13bf05 RB |
548 | } |
549 | ||
550 | if (submodule->flags & GIT_SUBMODULE_STATUS__WD_OID_VALID) | |
551 | return &submodule->wd_oid; | |
552 | else | |
553 | return NULL; | |
554 | } | |
555 | ||
556 | git_submodule_ignore_t git_submodule_ignore(git_submodule *submodule) | |
557 | { | |
558 | assert(submodule); | |
559 | return submodule->ignore; | |
560 | } | |
561 | ||
562 | git_submodule_ignore_t git_submodule_set_ignore( | |
563 | git_submodule *submodule, git_submodule_ignore_t ignore) | |
564 | { | |
565 | git_submodule_ignore_t old; | |
566 | ||
567 | assert(submodule); | |
568 | ||
569 | if (ignore == GIT_SUBMODULE_IGNORE_DEFAULT) | |
570 | ignore = submodule->ignore_default; | |
571 | ||
572 | old = submodule->ignore; | |
573 | submodule->ignore = ignore; | |
574 | return old; | |
575 | } | |
576 | ||
577 | git_submodule_update_t git_submodule_update(git_submodule *submodule) | |
578 | { | |
579 | assert(submodule); | |
580 | return submodule->update; | |
581 | } | |
582 | ||
583 | git_submodule_update_t git_submodule_set_update( | |
584 | git_submodule *submodule, git_submodule_update_t update) | |
585 | { | |
586 | git_submodule_update_t old; | |
587 | ||
588 | assert(submodule); | |
589 | ||
590 | if (update == GIT_SUBMODULE_UPDATE_DEFAULT) | |
591 | update = submodule->update_default; | |
592 | ||
593 | old = submodule->update; | |
594 | submodule->update = update; | |
595 | return old; | |
596 | } | |
597 | ||
17b06f4d RB |
598 | int git_submodule_fetch_recurse_submodules( |
599 | git_submodule *submodule) | |
600 | { | |
601 | assert(submodule); | |
602 | return submodule->fetch_recurse; | |
603 | } | |
604 | ||
605 | int git_submodule_set_fetch_recurse_submodules( | |
606 | git_submodule *submodule, | |
607 | int fetch_recurse_submodules) | |
608 | { | |
609 | int old; | |
610 | ||
611 | assert(submodule); | |
612 | ||
613 | old = submodule->fetch_recurse; | |
614 | submodule->fetch_recurse = (fetch_recurse_submodules != 0); | |
615 | return old; | |
616 | } | |
617 | ||
aa13bf05 RB |
618 | int git_submodule_init(git_submodule *submodule, int overwrite) |
619 | { | |
620 | int error; | |
621 | ||
622 | /* write "submodule.NAME.url" */ | |
623 | ||
624 | if (!submodule->url) { | |
625 | giterr_set(GITERR_SUBMODULE, | |
626 | "No URL configured for submodule '%s'", submodule->name); | |
627 | return -1; | |
628 | } | |
629 | ||
630 | error = submodule_update_config( | |
631 | submodule, "url", submodule->url, overwrite != 0, false); | |
632 | if (error < 0) | |
633 | return error; | |
634 | ||
635 | /* write "submodule.NAME.update" if not default */ | |
636 | ||
637 | if (submodule->update == GIT_SUBMODULE_UPDATE_CHECKOUT) | |
638 | error = submodule_update_config( | |
639 | submodule, "update", NULL, (overwrite != 0), false); | |
640 | else if (submodule->update != GIT_SUBMODULE_UPDATE_DEFAULT) | |
641 | error = submodule_update_config( | |
642 | submodule, "update", | |
643 | _sm_update_map[submodule->update].str_match, | |
644 | (overwrite != 0), false); | |
645 | ||
646 | return error; | |
647 | } | |
648 | ||
649 | int git_submodule_sync(git_submodule *submodule) | |
650 | { | |
651 | if (!submodule->url) { | |
652 | giterr_set(GITERR_SUBMODULE, | |
653 | "No URL configured for submodule '%s'", submodule->name); | |
654 | return -1; | |
655 | } | |
656 | ||
657 | /* copy URL over to config only if it already exists */ | |
658 | ||
659 | return submodule_update_config( | |
660 | submodule, "url", submodule->url, true, true); | |
661 | } | |
662 | ||
663 | int git_submodule_open( | |
664 | git_repository **subrepo, | |
665 | git_submodule *submodule) | |
666 | { | |
667 | int error; | |
668 | git_buf path = GIT_BUF_INIT; | |
669 | git_repository *repo; | |
670 | const char *workdir; | |
671 | ||
672 | assert(submodule && subrepo); | |
673 | ||
674 | repo = submodule->owner; | |
675 | workdir = git_repository_workdir(repo); | |
676 | ||
677 | if (!workdir) { | |
678 | giterr_set(GITERR_REPOSITORY, | |
679 | "Cannot open submodule repository in a bare repo"); | |
680 | return GIT_ENOTFOUND; | |
681 | } | |
682 | ||
683 | if ((submodule->flags & GIT_SUBMODULE_STATUS_IN_WD) == 0) { | |
684 | giterr_set(GITERR_REPOSITORY, | |
685 | "Cannot open submodule repository that is not checked out"); | |
686 | return GIT_ENOTFOUND; | |
687 | } | |
688 | ||
689 | if (git_buf_joinpath(&path, workdir, submodule->path) < 0) | |
690 | return -1; | |
691 | ||
692 | error = git_repository_open(subrepo, path.ptr); | |
693 | ||
694 | git_buf_free(&path); | |
695 | ||
696 | /* if we have opened the submodule successfully, let's grab the HEAD OID */ | |
697 | if (!error && !(submodule->flags & GIT_SUBMODULE_STATUS__WD_OID_VALID)) { | |
698 | if (!git_reference_name_to_oid( | |
699 | &submodule->wd_oid, *subrepo, GIT_HEAD_FILE)) | |
700 | submodule->flags |= GIT_SUBMODULE_STATUS__WD_OID_VALID; | |
701 | else | |
702 | giterr_clear(); | |
703 | } | |
704 | ||
705 | return error; | |
706 | } | |
707 | ||
708 | int git_submodule_reload_all(git_repository *repo) | |
709 | { | |
710 | assert(repo); | |
711 | return load_submodule_config(repo, true); | |
712 | } | |
713 | ||
714 | int git_submodule_reload(git_submodule *submodule) | |
715 | { | |
716 | git_repository *repo; | |
717 | git_index *index; | |
718 | int pos, error; | |
719 | git_tree *head; | |
720 | git_config_file *mods; | |
721 | ||
722 | assert(submodule); | |
723 | ||
724 | /* refresh index data */ | |
725 | ||
726 | repo = submodule->owner; | |
727 | if (git_repository_index__weakptr(&index, repo) < 0) | |
728 | return -1; | |
729 | ||
5f4a61ae RB |
730 | submodule->flags = submodule->flags & |
731 | ~(GIT_SUBMODULE_STATUS_IN_INDEX | | |
732 | GIT_SUBMODULE_STATUS__INDEX_OID_VALID); | |
733 | ||
aa13bf05 RB |
734 | pos = git_index_find(index, submodule->path); |
735 | if (pos >= 0) { | |
736 | git_index_entry *entry = git_index_get(index, pos); | |
737 | ||
5f4a61ae RB |
738 | if (S_ISGITLINK(entry->mode)) { |
739 | if ((error = submodule_load_from_index(repo, entry)) < 0) | |
740 | return error; | |
741 | } else { | |
742 | submodule_mode_mismatch( | |
743 | repo, entry->path, GIT_SUBMODULE_STATUS__INDEX_NOT_SUBMODULE); | |
744 | } | |
aa13bf05 RB |
745 | } |
746 | ||
747 | /* refresh HEAD tree data */ | |
748 | ||
749 | if (!(error = git_repository_head_tree(&head, repo))) { | |
750 | git_tree_entry *te; | |
751 | ||
752 | submodule->flags = submodule->flags & | |
753 | ~(GIT_SUBMODULE_STATUS_IN_HEAD | | |
754 | GIT_SUBMODULE_STATUS__HEAD_OID_VALID); | |
755 | ||
756 | if (!(error = git_tree_entry_bypath(&te, head, submodule->path))) { | |
5f4a61ae RB |
757 | |
758 | if (S_ISGITLINK(te->attr)) { | |
759 | error = submodule_load_from_head(repo, submodule->path, &te->oid); | |
760 | } else { | |
761 | submodule_mode_mismatch( | |
762 | repo, submodule->path, | |
763 | GIT_SUBMODULE_STATUS__HEAD_NOT_SUBMODULE); | |
764 | } | |
aa13bf05 RB |
765 | |
766 | git_tree_entry_free(te); | |
767 | } | |
768 | else if (error == GIT_ENOTFOUND) { | |
769 | giterr_clear(); | |
770 | error = 0; | |
771 | } | |
772 | ||
773 | git_tree_free(head); | |
774 | } | |
775 | ||
776 | if (error < 0) | |
777 | return error; | |
778 | ||
779 | /* refresh config data */ | |
780 | ||
781 | if ((mods = open_gitmodules(repo, false, NULL)) != NULL) { | |
782 | git_buf path = GIT_BUF_INIT; | |
783 | ||
784 | git_buf_sets(&path, "submodule\\."); | |
785 | git_buf_puts_escape_regex(&path, submodule->name); | |
786 | git_buf_puts(&path, ".*"); | |
787 | ||
788 | if (git_buf_oom(&path)) | |
789 | error = -1; | |
790 | else | |
791 | error = git_config_file_foreach_match( | |
792 | mods, path.ptr, submodule_load_from_config, repo); | |
793 | ||
794 | git_buf_free(&path); | |
0c8858de | 795 | git_config_file_free(mods); |
aa13bf05 RB |
796 | } |
797 | ||
5f4a61ae RB |
798 | if (error < 0) |
799 | return error; | |
800 | ||
801 | /* refresh wd data */ | |
802 | ||
803 | submodule->flags = submodule->flags & | |
804 | ~(GIT_SUBMODULE_STATUS_IN_WD | GIT_SUBMODULE_STATUS__WD_OID_VALID); | |
805 | ||
806 | error = submodule_load_from_wd_lite(submodule, submodule->path, NULL); | |
807 | ||
aa13bf05 RB |
808 | return error; |
809 | } | |
810 | ||
811 | int git_submodule_status( | |
812 | unsigned int *status, | |
813 | git_submodule *submodule) | |
814 | { | |
5f4a61ae RB |
815 | int error = 0; |
816 | unsigned int status_val; | |
817 | ||
aa13bf05 RB |
818 | assert(status && submodule); |
819 | ||
5f4a61ae | 820 | status_val = GIT_SUBMODULE_STATUS__CLEAR_INTERNAL(submodule->flags); |
0c8858de | 821 | |
5f4a61ae RB |
822 | if (submodule->ignore != GIT_SUBMODULE_IGNORE_ALL) { |
823 | if (!(error = submodule_index_status(&status_val, submodule))) | |
824 | error = submodule_wd_status(&status_val, submodule); | |
825 | } | |
aa13bf05 | 826 | |
5f4a61ae | 827 | *status = status_val; |
aa13bf05 | 828 | |
5f4a61ae | 829 | return error; |
aa13bf05 RB |
830 | } |
831 | ||
832 | /* | |
833 | * INTERNAL FUNCTIONS | |
834 | */ | |
835 | ||
836 | static git_submodule *submodule_alloc(git_repository *repo, const char *name) | |
bfc9ca59 | 837 | { |
0c8858de | 838 | git_submodule *sm; |
bfc9ca59 | 839 | |
0c8858de RB |
840 | if (!name || !strlen(name)) { |
841 | giterr_set(GITERR_SUBMODULE, "Invalid submodule name"); | |
bfc9ca59 RB |
842 | return NULL; |
843 | } | |
844 | ||
0c8858de RB |
845 | sm = git__calloc(1, sizeof(git_submodule)); |
846 | if (sm == NULL) | |
847 | goto fail; | |
848 | ||
849 | sm->path = sm->name = git__strdup(name); | |
850 | if (!sm->name) | |
851 | goto fail; | |
852 | ||
aa13bf05 | 853 | sm->owner = repo; |
0c8858de | 854 | sm->refcount = 1; |
aa13bf05 RB |
855 | |
856 | return sm; | |
0c8858de RB |
857 | |
858 | fail: | |
859 | submodule_release(sm, 0); | |
860 | return NULL; | |
aa13bf05 RB |
861 | } |
862 | ||
863 | static void submodule_release(git_submodule *sm, int decr) | |
864 | { | |
865 | if (!sm) | |
866 | return; | |
867 | ||
868 | sm->refcount -= decr; | |
869 | ||
870 | if (sm->refcount == 0) { | |
871 | if (sm->name != sm->path) { | |
872 | git__free(sm->path); | |
873 | sm->path = NULL; | |
874 | } | |
875 | ||
876 | git__free(sm->name); | |
877 | sm->name = NULL; | |
878 | ||
879 | git__free(sm->url); | |
880 | sm->url = NULL; | |
881 | ||
882 | sm->owner = NULL; | |
883 | ||
884 | git__free(sm); | |
885 | } | |
886 | } | |
887 | ||
0c8858de RB |
888 | static int submodule_get( |
889 | git_submodule **sm_ptr, | |
890 | git_repository *repo, | |
891 | const char *name, | |
892 | const char *alternate) | |
aa13bf05 RB |
893 | { |
894 | git_strmap *smcfg = repo->submodules; | |
895 | khiter_t pos; | |
896 | git_submodule *sm; | |
0c8858de | 897 | int error; |
aa13bf05 | 898 | |
0c8858de | 899 | assert(repo && name); |
aa13bf05 | 900 | |
0c8858de | 901 | pos = git_strmap_lookup_index(smcfg, name); |
aa13bf05 | 902 | |
0c8858de RB |
903 | if (!git_strmap_valid_index(smcfg, pos) && alternate) |
904 | pos = git_strmap_lookup_index(smcfg, alternate); | |
aa13bf05 | 905 | |
0c8858de RB |
906 | if (!git_strmap_valid_index(smcfg, pos)) { |
907 | sm = submodule_alloc(repo, name); | |
aa13bf05 | 908 | |
0c8858de RB |
909 | /* insert value at name - if another thread beats us to it, then use |
910 | * their record and release our own. | |
911 | */ | |
5f4a61ae | 912 | pos = kh_put(str, smcfg, sm->name, &error); |
0c8858de RB |
913 | |
914 | if (error < 0) { | |
915 | submodule_release(sm, 1); | |
916 | sm = NULL; | |
917 | } else if (error == 0) { | |
918 | submodule_release(sm, 1); | |
919 | sm = git_strmap_value_at(smcfg, pos); | |
920 | } else { | |
921 | git_strmap_set_value_at(smcfg, pos, sm); | |
922 | } | |
923 | } else { | |
924 | sm = git_strmap_value_at(smcfg, pos); | |
aa13bf05 RB |
925 | } |
926 | ||
0c8858de | 927 | *sm_ptr = sm; |
aa13bf05 | 928 | |
0c8858de | 929 | return (sm != NULL) ? 0 : -1; |
bfc9ca59 RB |
930 | } |
931 | ||
aa13bf05 RB |
932 | static int submodule_load_from_index( |
933 | git_repository *repo, const git_index_entry *entry) | |
bfc9ca59 | 934 | { |
0c8858de | 935 | git_submodule *sm; |
bfc9ca59 | 936 | |
0c8858de | 937 | if (submodule_get(&sm, repo, entry->path, NULL) < 0) |
aa13bf05 | 938 | return -1; |
bfc9ca59 | 939 | |
aa13bf05 RB |
940 | if (sm->flags & GIT_SUBMODULE_STATUS_IN_INDEX) { |
941 | sm->flags |= GIT_SUBMODULE_STATUS__INDEX_MULTIPLE_ENTRIES; | |
942 | return 0; | |
bfc9ca59 | 943 | } |
bfc9ca59 | 944 | |
aa13bf05 | 945 | sm->flags |= GIT_SUBMODULE_STATUS_IN_INDEX; |
01fed0a8 | 946 | |
aa13bf05 RB |
947 | git_oid_cpy(&sm->index_oid, &entry->oid); |
948 | sm->flags |= GIT_SUBMODULE_STATUS__INDEX_OID_VALID; | |
bfc9ca59 | 949 | |
0c8858de | 950 | return 0; |
aa13bf05 | 951 | } |
bfc9ca59 | 952 | |
aa13bf05 RB |
953 | static int submodule_load_from_head( |
954 | git_repository *repo, const char *path, const git_oid *oid) | |
955 | { | |
0c8858de | 956 | git_submodule *sm; |
bfc9ca59 | 957 | |
0c8858de | 958 | if (submodule_get(&sm, repo, path, NULL) < 0) |
aa13bf05 | 959 | return -1; |
bfc9ca59 | 960 | |
aa13bf05 | 961 | sm->flags |= GIT_SUBMODULE_STATUS_IN_HEAD; |
bfc9ca59 | 962 | |
aa13bf05 RB |
963 | git_oid_cpy(&sm->head_oid, oid); |
964 | sm->flags |= GIT_SUBMODULE_STATUS__HEAD_OID_VALID; | |
bfc9ca59 | 965 | |
0c8858de RB |
966 | return 0; |
967 | } | |
968 | ||
969 | static int submodule_config_error(const char *property, const char *value) | |
970 | { | |
971 | giterr_set(GITERR_INVALID, | |
972 | "Invalid value for submodule '%s' property: '%s'", property, value); | |
973 | return -1; | |
bfc9ca59 RB |
974 | } |
975 | ||
aa13bf05 | 976 | static int submodule_load_from_config( |
bfc9ca59 RB |
977 | const char *key, const char *value, void *data) |
978 | { | |
aa13bf05 RB |
979 | git_repository *repo = data; |
980 | git_strmap *smcfg = repo->submodules; | |
0c8858de | 981 | const char *namestart, *property, *alternate = NULL; |
bfc9ca59 RB |
982 | git_buf name = GIT_BUF_INIT; |
983 | git_submodule *sm; | |
bfc9ca59 | 984 | bool is_path; |
0c8858de | 985 | int error = 0; |
bfc9ca59 RB |
986 | |
987 | if (git__prefixcmp(key, "submodule.") != 0) | |
988 | return 0; | |
989 | ||
990 | namestart = key + strlen("submodule."); | |
991 | property = strrchr(namestart, '.'); | |
992 | if (property == NULL) | |
993 | return 0; | |
994 | property++; | |
aa13bf05 | 995 | is_path = (strcasecmp(property, "path") == 0); |
bfc9ca59 RB |
996 | |
997 | if (git_buf_set(&name, namestart, property - namestart - 1) < 0) | |
998 | return -1; | |
999 | ||
0c8858de RB |
1000 | if (submodule_get(&sm, repo, name.ptr, is_path ? value : NULL) < 0) { |
1001 | git_buf_free(&name); | |
1002 | return -1; | |
1003 | } | |
bfc9ca59 | 1004 | |
aa13bf05 RB |
1005 | sm->flags |= GIT_SUBMODULE_STATUS_IN_CONFIG; |
1006 | ||
0c8858de RB |
1007 | /* Only from config might we get differing names & paths. If so, then |
1008 | * update the submodule and insert under the alternative key. | |
1009 | */ | |
01fed0a8 | 1010 | |
0c8858de RB |
1011 | /* TODO: if case insensitive filesystem, then the following strcmps |
1012 | * should be strcasecmp | |
1013 | */ | |
01fed0a8 | 1014 | |
0c8858de RB |
1015 | if (strcmp(sm->name, name.ptr) != 0) { |
1016 | alternate = sm->name = git_buf_detach(&name); | |
1017 | } else if (is_path && value && strcmp(sm->path, value) != 0) { | |
1018 | alternate = sm->path = git__strdup(value); | |
1019 | if (!sm->path) | |
1020 | error = -1; | |
bfc9ca59 | 1021 | } |
0c8858de RB |
1022 | if (alternate) { |
1023 | void *old_sm = NULL; | |
1024 | git_strmap_insert2(smcfg, alternate, sm, old_sm, error); | |
bfc9ca59 | 1025 | |
0c8858de RB |
1026 | if (error >= 0) |
1027 | sm->refcount++; /* inserted under a new key */ | |
1028 | ||
1029 | /* if we replaced an old module under this key, release the old one */ | |
1030 | if (old_sm && ((git_submodule *)old_sm) != sm) { | |
1031 | submodule_release(old_sm, 1); | |
1032 | /* TODO: log warning about multiple submodules with same path */ | |
1033 | } | |
bfc9ca59 RB |
1034 | } |
1035 | ||
0c8858de RB |
1036 | git_buf_free(&name); |
1037 | if (error < 0) | |
1038 | return error; | |
1039 | ||
aa13bf05 RB |
1040 | /* TODO: Look up path in index and if it is present but not a GITLINK |
1041 | * then this should be deleted (at least to match git's behavior) | |
1042 | */ | |
1043 | ||
bfc9ca59 RB |
1044 | if (is_path) |
1045 | return 0; | |
1046 | ||
1047 | /* copy other properties into submodule entry */ | |
aa13bf05 | 1048 | if (strcasecmp(property, "url") == 0) { |
0c8858de RB |
1049 | git__free(sm->url); |
1050 | sm->url = NULL; | |
1051 | ||
aa13bf05 | 1052 | if (value != NULL && (sm->url = git__strdup(value)) == NULL) |
0c8858de | 1053 | return -1; |
bfc9ca59 | 1054 | } |
aa13bf05 | 1055 | else if (strcasecmp(property, "update") == 0) { |
95dfb031 RB |
1056 | int val; |
1057 | if (git_config_lookup_map_value( | |
0c8858de RB |
1058 | _sm_update_map, ARRAY_SIZE(_sm_update_map), value, &val) < 0) |
1059 | return submodule_config_error("update", value); | |
aa13bf05 | 1060 | sm->update_default = sm->update = (git_submodule_update_t)val; |
bfc9ca59 | 1061 | } |
aa13bf05 | 1062 | else if (strcasecmp(property, "fetchRecurseSubmodules") == 0) { |
0c8858de RB |
1063 | if (git__parse_bool(&sm->fetch_recurse, value) < 0) |
1064 | return submodule_config_error("fetchRecurseSubmodules", value); | |
bfc9ca59 | 1065 | } |
aa13bf05 | 1066 | else if (strcasecmp(property, "ignore") == 0) { |
95dfb031 RB |
1067 | int val; |
1068 | if (git_config_lookup_map_value( | |
0c8858de RB |
1069 | _sm_ignore_map, ARRAY_SIZE(_sm_ignore_map), value, &val) < 0) |
1070 | return submodule_config_error("ignore", value); | |
aa13bf05 | 1071 | sm->ignore_default = sm->ignore = (git_submodule_ignore_t)val; |
bfc9ca59 RB |
1072 | } |
1073 | /* ignore other unknown submodule properties */ | |
1074 | ||
1075 | return 0; | |
bfc9ca59 RB |
1076 | } |
1077 | ||
aa13bf05 RB |
1078 | static int submodule_load_from_wd_lite( |
1079 | git_submodule *sm, const char *name, void *payload) | |
1080 | { | |
1081 | git_repository *repo = git_submodule_owner(sm); | |
1082 | git_buf path = GIT_BUF_INIT; | |
1083 | ||
1084 | GIT_UNUSED(name); | |
1085 | GIT_UNUSED(payload); | |
1086 | ||
1087 | if (git_buf_joinpath(&path, git_repository_workdir(repo), sm->path) < 0) | |
1088 | return -1; | |
1089 | ||
1090 | if (git_path_isdir(path.ptr)) | |
1091 | sm->flags |= GIT_SUBMODULE_STATUS__WD_SCANNED; | |
1092 | ||
1093 | if (git_path_contains(&path, DOT_GIT)) | |
1094 | sm->flags |= GIT_SUBMODULE_STATUS_IN_WD; | |
1095 | ||
1096 | git_buf_free(&path); | |
1097 | ||
1098 | return 0; | |
1099 | } | |
1100 | ||
5f4a61ae RB |
1101 | static void submodule_mode_mismatch( |
1102 | git_repository *repo, const char *path, unsigned int flag) | |
1103 | { | |
1104 | khiter_t pos = git_strmap_lookup_index(repo->submodules, path); | |
1105 | ||
1106 | if (git_strmap_valid_index(repo->submodules, pos)) { | |
1107 | git_submodule *sm = git_strmap_value_at(repo->submodules, pos); | |
1108 | ||
1109 | sm->flags |= flag; | |
1110 | } | |
1111 | } | |
1112 | ||
aa13bf05 RB |
1113 | static int load_submodule_config_from_index( |
1114 | git_repository *repo, git_oid *gitmodules_oid) | |
bfc9ca59 RB |
1115 | { |
1116 | int error; | |
aa13bf05 RB |
1117 | git_iterator *i; |
1118 | const git_index_entry *entry; | |
bfc9ca59 | 1119 | |
aa13bf05 RB |
1120 | if ((error = git_iterator_for_index(&i, repo)) < 0) |
1121 | return error; | |
bfc9ca59 | 1122 | |
aa13bf05 | 1123 | error = git_iterator_current(i, &entry); |
bfc9ca59 | 1124 | |
aa13bf05 | 1125 | while (!error && entry != NULL) { |
bfc9ca59 | 1126 | |
bfc9ca59 | 1127 | if (S_ISGITLINK(entry->mode)) { |
aa13bf05 RB |
1128 | error = submodule_load_from_index(repo, entry); |
1129 | if (error < 0) | |
1130 | break; | |
5f4a61ae RB |
1131 | } else { |
1132 | submodule_mode_mismatch( | |
1133 | repo, entry->path, GIT_SUBMODULE_STATUS__INDEX_NOT_SUBMODULE); | |
1134 | ||
1135 | if (strcmp(entry->path, GIT_MODULES_FILE) == 0) | |
1136 | git_oid_cpy(gitmodules_oid, &entry->oid); | |
1137 | } | |
aa13bf05 RB |
1138 | |
1139 | error = git_iterator_advance(i, &entry); | |
bfc9ca59 RB |
1140 | } |
1141 | ||
aa13bf05 RB |
1142 | git_iterator_free(i); |
1143 | ||
1144 | return error; | |
1145 | } | |
1146 | ||
1147 | static int load_submodule_config_from_head( | |
1148 | git_repository *repo, git_oid *gitmodules_oid) | |
1149 | { | |
1150 | int error; | |
1151 | git_tree *head; | |
1152 | git_iterator *i; | |
1153 | const git_index_entry *entry; | |
1154 | ||
1155 | if ((error = git_repository_head_tree(&head, repo)) < 0) | |
1156 | return error; | |
1157 | ||
1158 | if ((error = git_iterator_for_tree(&i, repo, head)) < 0) { | |
1159 | git_tree_free(head); | |
1160 | return error; | |
1161 | } | |
1162 | ||
1163 | error = git_iterator_current(i, &entry); | |
1164 | ||
1165 | while (!error && entry != NULL) { | |
1166 | ||
1167 | if (S_ISGITLINK(entry->mode)) { | |
1168 | error = submodule_load_from_head(repo, entry->path, &entry->oid); | |
1169 | if (error < 0) | |
1170 | break; | |
5f4a61ae RB |
1171 | } else { |
1172 | submodule_mode_mismatch( | |
1173 | repo, entry->path, GIT_SUBMODULE_STATUS__HEAD_NOT_SUBMODULE); | |
1174 | ||
1175 | if (strcmp(entry->path, GIT_MODULES_FILE) == 0 && | |
1176 | git_oid_iszero(gitmodules_oid)) | |
1177 | git_oid_cpy(gitmodules_oid, &entry->oid); | |
1178 | } | |
aa13bf05 RB |
1179 | |
1180 | error = git_iterator_advance(i, &entry); | |
1181 | } | |
1182 | ||
1183 | git_iterator_free(i); | |
1184 | git_tree_free(head); | |
1185 | ||
1186 | return error; | |
1187 | } | |
1188 | ||
1189 | static git_config_file *open_gitmodules( | |
1190 | git_repository *repo, | |
1191 | bool okay_to_create, | |
1192 | const git_oid *gitmodules_oid) | |
1193 | { | |
1194 | const char *workdir = git_repository_workdir(repo); | |
1195 | git_buf path = GIT_BUF_INIT; | |
1196 | git_config_file *mods = NULL; | |
1197 | ||
1198 | if (workdir != NULL) { | |
1199 | if (git_buf_joinpath(&path, workdir, GIT_MODULES_FILE) != 0) | |
1200 | return NULL; | |
1201 | ||
1202 | if (okay_to_create || git_path_isfile(path.ptr)) { | |
1203 | /* git_config_file__ondisk should only fail if OOM */ | |
1204 | if (git_config_file__ondisk(&mods, path.ptr) < 0) | |
0c8858de | 1205 | mods = NULL; |
aa13bf05 | 1206 | /* open should only fail here if the file is malformed */ |
0c8858de | 1207 | else if (git_config_file_open(mods) < 0) { |
aa13bf05 RB |
1208 | git_config_file_free(mods); |
1209 | mods = NULL; | |
1210 | } | |
bfc9ca59 | 1211 | } |
bfc9ca59 RB |
1212 | } |
1213 | ||
aa13bf05 RB |
1214 | if (!mods && gitmodules_oid && !git_oid_iszero(gitmodules_oid)) { |
1215 | /* TODO: Retrieve .gitmodules content from ODB */ | |
1216 | ||
1217 | /* Should we actually do this? Core git does not, but it means you | |
1218 | * can't really get much information about submodules on bare repos. | |
1219 | */ | |
1220 | } | |
1221 | ||
0c8858de RB |
1222 | git_buf_free(&path); |
1223 | ||
aa13bf05 RB |
1224 | return mods; |
1225 | } | |
1226 | ||
1227 | static int load_submodule_config(git_repository *repo, bool force) | |
1228 | { | |
1229 | int error; | |
1230 | git_oid gitmodules_oid; | |
1231 | git_buf path = GIT_BUF_INIT; | |
1232 | git_config_file *mods = NULL; | |
1233 | ||
1234 | if (repo->submodules && !force) | |
1235 | return 0; | |
1236 | ||
1237 | memset(&gitmodules_oid, 0, sizeof(gitmodules_oid)); | |
1238 | ||
1239 | /* Submodule data is kept in a hashtable keyed by both name and path. | |
1240 | * These are usually the same, but that is not guaranteed. | |
1241 | */ | |
1242 | if (!repo->submodules) { | |
1243 | repo->submodules = git_strmap_alloc(); | |
1244 | GITERR_CHECK_ALLOC(repo->submodules); | |
bfc9ca59 RB |
1245 | } |
1246 | ||
aa13bf05 RB |
1247 | /* add submodule information from index */ |
1248 | ||
1249 | if ((error = load_submodule_config_from_index(repo, &gitmodules_oid)) < 0) | |
1250 | goto cleanup; | |
1251 | ||
1252 | /* add submodule information from HEAD */ | |
1253 | ||
1254 | if ((error = load_submodule_config_from_head(repo, &gitmodules_oid)) < 0) | |
1255 | goto cleanup; | |
1256 | ||
1257 | /* add submodule information from .gitmodules */ | |
1258 | ||
1259 | if ((mods = open_gitmodules(repo, false, &gitmodules_oid)) != NULL) | |
1260 | error = git_config_file_foreach(mods, submodule_load_from_config, repo); | |
1261 | ||
1262 | if (error != 0) | |
1263 | goto cleanup; | |
1264 | ||
1265 | /* shallow scan submodules in work tree */ | |
bfc9ca59 | 1266 | |
aa13bf05 RB |
1267 | if (!git_repository_is_bare(repo)) |
1268 | error = git_submodule_foreach(repo, submodule_load_from_wd_lite, NULL); | |
bfc9ca59 RB |
1269 | |
1270 | cleanup: | |
aa13bf05 RB |
1271 | git_buf_free(&path); |
1272 | ||
bfc9ca59 RB |
1273 | if (mods != NULL) |
1274 | git_config_file_free(mods); | |
aa13bf05 | 1275 | |
bfc9ca59 | 1276 | if (error) |
aa13bf05 RB |
1277 | git_submodule_config_free(repo); |
1278 | ||
bfc9ca59 RB |
1279 | return error; |
1280 | } | |
1281 | ||
aa13bf05 | 1282 | static int lookup_head_remote(git_buf *url, git_repository *repo) |
bfc9ca59 | 1283 | { |
aa13bf05 RB |
1284 | int error; |
1285 | git_config *cfg; | |
1286 | git_reference *head = NULL, *remote = NULL; | |
1287 | const char *tgt, *scan; | |
1288 | git_buf key = GIT_BUF_INIT; | |
1289 | ||
1290 | /* 1. resolve HEAD -> refs/heads/BRANCH | |
1291 | * 2. lookup config branch.BRANCH.remote -> ORIGIN | |
1292 | * 3. lookup remote.ORIGIN.url | |
1293 | */ | |
bfc9ca59 | 1294 | |
aa13bf05 RB |
1295 | if ((error = git_repository_config__weakptr(&cfg, repo)) < 0) |
1296 | return error; | |
bfc9ca59 | 1297 | |
aa13bf05 RB |
1298 | if (git_reference_lookup(&head, repo, GIT_HEAD_FILE) < 0) { |
1299 | giterr_set(GITERR_SUBMODULE, | |
1300 | "Cannot resolve relative URL when HEAD cannot be resolved"); | |
1301 | error = GIT_ENOTFOUND; | |
1302 | goto cleanup; | |
1303 | } | |
bfc9ca59 | 1304 | |
aa13bf05 RB |
1305 | if (git_reference_type(head) != GIT_REF_SYMBOLIC) { |
1306 | giterr_set(GITERR_SUBMODULE, | |
1307 | "Cannot resolve relative URL when HEAD is not symbolic"); | |
1308 | error = GIT_ENOTFOUND; | |
1309 | goto cleanup; | |
1310 | } | |
1311 | ||
1312 | if ((error = git_branch_tracking(&remote, head)) < 0) | |
1313 | goto cleanup; | |
1314 | ||
1315 | /* remote should refer to something like refs/remotes/ORIGIN/BRANCH */ | |
1316 | ||
1317 | if (git_reference_type(remote) != GIT_REF_SYMBOLIC || | |
1318 | git__prefixcmp(git_reference_target(remote), "refs/remotes/") != 0) | |
1319 | { | |
1320 | giterr_set(GITERR_SUBMODULE, | |
1321 | "Cannot resolve relative URL when HEAD is not symbolic"); | |
1322 | error = GIT_ENOTFOUND; | |
1323 | goto cleanup; | |
1324 | } | |
1325 | ||
1326 | scan = tgt = git_reference_target(remote) + strlen("refs/remotes/"); | |
1327 | while (*scan && (*scan != '/' || (scan > tgt && scan[-1] != '\\'))) | |
1328 | scan++; /* find non-escaped slash to end ORIGIN name */ | |
1329 | ||
1330 | error = git_buf_printf(&key, "remote.%.*s.url", (int)(scan - tgt), tgt); | |
1331 | if (error < 0) | |
1332 | goto cleanup; | |
1333 | ||
1334 | if ((error = git_config_get_string(&tgt, cfg, key.ptr)) < 0) | |
1335 | goto cleanup; | |
1336 | ||
1337 | error = git_buf_sets(url, tgt); | |
1338 | ||
1339 | cleanup: | |
1340 | git_buf_free(&key); | |
1341 | git_reference_free(head); | |
1342 | git_reference_free(remote); | |
1343 | ||
1344 | return error; | |
bfc9ca59 RB |
1345 | } |
1346 | ||
aa13bf05 RB |
1347 | static int submodule_update_config( |
1348 | git_submodule *submodule, | |
1349 | const char *attr, | |
1350 | const char *value, | |
1351 | bool overwrite, | |
1352 | bool only_existing) | |
bfc9ca59 | 1353 | { |
aa13bf05 RB |
1354 | int error; |
1355 | git_config *config; | |
1356 | git_buf key = GIT_BUF_INIT; | |
1357 | const char *old = NULL; | |
1358 | ||
1359 | assert(submodule); | |
1360 | ||
1361 | error = git_repository_config__weakptr(&config, submodule->owner); | |
1362 | if (error < 0) | |
1363 | return error; | |
1364 | ||
1365 | error = git_buf_printf(&key, "submodule.%s.%s", submodule->name, attr); | |
1366 | if (error < 0) | |
1367 | goto cleanup; | |
1368 | ||
1369 | if (git_config_get_string(&old, config, key.ptr) < 0) | |
1370 | giterr_clear(); | |
1371 | ||
1372 | if (!old && only_existing) | |
1373 | goto cleanup; | |
1374 | if (old && !overwrite) | |
1375 | goto cleanup; | |
1376 | if ((!old && !value) || (old && value && strcmp(old, value) == 0)) | |
1377 | goto cleanup; | |
1378 | ||
1379 | if (!value) | |
1380 | error = git_config_delete(config, key.ptr); | |
1381 | else | |
1382 | error = git_config_set_string(config, key.ptr, value); | |
1383 | ||
1384 | cleanup: | |
1385 | git_buf_free(&key); | |
1386 | return error; | |
bfc9ca59 RB |
1387 | } |
1388 | ||
5f4a61ae | 1389 | static int submodule_index_status(unsigned int *status, git_submodule *sm) |
aa13bf05 | 1390 | { |
5f4a61ae RB |
1391 | const git_oid *head_oid = git_submodule_head_oid(sm); |
1392 | const git_oid *index_oid = git_submodule_index_oid(sm); | |
aa13bf05 | 1393 | |
5f4a61ae RB |
1394 | if (!head_oid) { |
1395 | if (index_oid) | |
1396 | *status |= GIT_SUBMODULE_STATUS_INDEX_ADDED; | |
1397 | } | |
1398 | else if (!index_oid) | |
1399 | *status |= GIT_SUBMODULE_STATUS_INDEX_DELETED; | |
1400 | else if (!git_oid_equal(head_oid, index_oid)) | |
1401 | *status |= GIT_SUBMODULE_STATUS_INDEX_MODIFIED; | |
aa13bf05 | 1402 | |
5f4a61ae | 1403 | return 0; |
aa13bf05 RB |
1404 | } |
1405 | ||
5f4a61ae | 1406 | static int submodule_wd_status(unsigned int *status, git_submodule *sm) |
bfc9ca59 | 1407 | { |
5f4a61ae RB |
1408 | int error = 0; |
1409 | const git_oid *wd_oid, *index_oid; | |
1410 | git_repository *sm_repo = NULL; | |
01fed0a8 | 1411 | |
5f4a61ae RB |
1412 | /* open repo now if we need it (so wd_oid() call won't reopen) */ |
1413 | if ((sm->ignore == GIT_SUBMODULE_IGNORE_NONE || | |
1414 | sm->ignore == GIT_SUBMODULE_IGNORE_UNTRACKED) && | |
1415 | (sm->flags & GIT_SUBMODULE_STATUS_IN_WD) != 0) | |
1416 | { | |
1417 | if ((error = git_submodule_open(&sm_repo, sm)) < 0) | |
1418 | return error; | |
aa13bf05 | 1419 | } |
bfc9ca59 | 1420 | |
5f4a61ae RB |
1421 | index_oid = git_submodule_index_oid(sm); |
1422 | wd_oid = git_submodule_wd_oid(sm); | |
aa13bf05 | 1423 | |
5f4a61ae RB |
1424 | if (!index_oid) { |
1425 | if (wd_oid) | |
1426 | *status |= GIT_SUBMODULE_STATUS_WD_ADDED; | |
aa13bf05 | 1427 | } |
5f4a61ae RB |
1428 | else if (!wd_oid) { |
1429 | if ((sm->flags & GIT_SUBMODULE_STATUS__WD_SCANNED) != 0 && | |
1430 | (sm->flags & GIT_SUBMODULE_STATUS_IN_WD) == 0) | |
1431 | *status |= GIT_SUBMODULE_STATUS_WD_UNINITIALIZED; | |
1432 | else | |
1433 | *status |= GIT_SUBMODULE_STATUS_WD_DELETED; | |
aa13bf05 | 1434 | } |
5f4a61ae RB |
1435 | else if (!git_oid_equal(index_oid, wd_oid)) |
1436 | *status |= GIT_SUBMODULE_STATUS_WD_MODIFIED; | |
aa13bf05 | 1437 | |
5f4a61ae RB |
1438 | if (sm_repo != NULL) { |
1439 | git_tree *sm_head; | |
1440 | git_diff_options opt; | |
1441 | git_diff_list *diff; | |
aa13bf05 | 1442 | |
5f4a61ae RB |
1443 | /* the diffs below could be optimized with an early termination |
1444 | * option to the git_diff functions, but for now this is sufficient | |
1445 | * (and certainly no worse that what core git does). | |
1446 | */ | |
aa13bf05 | 1447 | |
5f4a61ae | 1448 | /* perform head-to-index diff on submodule */ |
aa13bf05 | 1449 | |
5f4a61ae RB |
1450 | if ((error = git_repository_head_tree(&sm_head, sm_repo)) < 0) |
1451 | return error; | |
bfc9ca59 | 1452 | |
5f4a61ae RB |
1453 | memset(&opt, 0, sizeof(opt)); |
1454 | if (sm->ignore == GIT_SUBMODULE_IGNORE_NONE) | |
1455 | opt.flags |= GIT_DIFF_INCLUDE_UNTRACKED; | |
bfc9ca59 | 1456 | |
5f4a61ae | 1457 | error = git_diff_index_to_tree(sm_repo, &opt, sm_head, &diff); |
aa13bf05 | 1458 | |
5f4a61ae | 1459 | if (!error) { |
5f69a31f | 1460 | if (git_diff_num_deltas(diff) > 0) |
5f4a61ae | 1461 | *status |= GIT_SUBMODULE_STATUS_WD_INDEX_MODIFIED; |
aa13bf05 | 1462 | |
5f4a61ae RB |
1463 | git_diff_list_free(diff); |
1464 | diff = NULL; | |
1465 | } | |
aa13bf05 | 1466 | |
5f4a61ae | 1467 | git_tree_free(sm_head); |
bfc9ca59 | 1468 | |
5f4a61ae RB |
1469 | if (error < 0) |
1470 | return error; | |
aa13bf05 | 1471 | |
5f4a61ae | 1472 | /* perform index-to-workdir diff on submodule */ |
aa13bf05 | 1473 | |
5f4a61ae | 1474 | error = git_diff_workdir_to_index(sm_repo, &opt, &diff); |
aa13bf05 | 1475 | |
5f4a61ae | 1476 | if (!error) { |
5f69a31f RB |
1477 | int untracked = |
1478 | git_diff_num_deltas_of_type(diff, GIT_DELTA_UNTRACKED); | |
bfc9ca59 | 1479 | |
5f4a61ae RB |
1480 | if (untracked > 0) |
1481 | *status |= GIT_SUBMODULE_STATUS_WD_UNTRACKED; | |
bfc9ca59 | 1482 | |
5f69a31f | 1483 | if ((git_diff_num_deltas(diff) - untracked) > 0) |
5f4a61ae | 1484 | *status |= GIT_SUBMODULE_STATUS_WD_WD_MODIFIED; |
bfc9ca59 | 1485 | |
5f4a61ae RB |
1486 | git_diff_list_free(diff); |
1487 | diff = NULL; | |
aa13bf05 | 1488 | } |
aa13bf05 | 1489 | |
5f4a61ae RB |
1490 | git_repository_free(sm_repo); |
1491 | } | |
aa13bf05 RB |
1492 | |
1493 | return error; | |
bfc9ca59 | 1494 | } |