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Commit | Line | Data |
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3315782c | 1 | /* |
359fc2d2 | 2 | * Copyright (C) the libgit2 contributors. All rights reserved. |
3315782c | 3 | * |
bb742ede VM |
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. | |
3315782c | 6 | */ |
e802d8cc | 7 | #include <stdarg.h> |
7784bcbb | 8 | #include <ctype.h> |
3315782c | 9 | |
44908fe7 | 10 | #include "git2/object.h" |
d00d5464 | 11 | #include "git2/refdb.h" |
1384b688 | 12 | #include "git2/sys/repository.h" |
d12299fe | 13 | |
3315782c VM |
14 | #include "common.h" |
15 | #include "repository.h" | |
16 | #include "commit.h" | |
17 | #include "tag.h" | |
237da401 | 18 | #include "blob.h" |
6fd195d7 | 19 | #include "fileops.h" |
b22d1479 | 20 | #include "config.h" |
9282e921 | 21 | #include "refs.h" |
47bfa0be RB |
22 | #include "filter.h" |
23 | #include "odb.h" | |
096d9e94 | 24 | #include "remote.h" |
632d8b23 | 25 | #include "merge.h" |
9282e921 | 26 | |
7784bcbb | 27 | #define GIT_FILE_CONTENT_PREFIX "gitdir:" |
6a01b6bd | 28 | |
28990938 | 29 | #define GIT_BRANCH_MASTER "master" |
30 | ||
29e948de | 31 | #define GIT_REPO_VERSION 0 |
691aa968 | 32 | |
ca1b6e54 RB |
33 | #define GIT_TEMPLATE_DIR "/usr/share/git-core/templates" |
34 | ||
e976b56d | 35 | static void set_odb(git_repository *repo, git_odb *odb) |
9462c471 | 36 | { |
e976b56d RB |
37 | if (odb) { |
38 | GIT_REFCOUNT_OWN(odb, repo); | |
39 | GIT_REFCOUNT_INC(odb); | |
40 | } | |
41 | ||
42 | if ((odb = git__swap(repo->_odb, odb)) != NULL) { | |
43 | GIT_REFCOUNT_OWN(odb, NULL); | |
44 | git_odb_free(odb); | |
eb2f3b47 | 45 | } |
9462c471 | 46 | } |
691aa968 | 47 | |
e976b56d | 48 | static void set_refdb(git_repository *repo, git_refdb *refdb) |
d00d5464 | 49 | { |
e976b56d RB |
50 | if (refdb) { |
51 | GIT_REFCOUNT_OWN(refdb, repo); | |
52 | GIT_REFCOUNT_INC(refdb); | |
53 | } | |
54 | ||
55 | if ((refdb = git__swap(repo->_refdb, refdb)) != NULL) { | |
56 | GIT_REFCOUNT_OWN(refdb, NULL); | |
57 | git_refdb_free(refdb); | |
d00d5464 ET |
58 | } |
59 | } | |
60 | ||
e976b56d | 61 | static void set_config(git_repository *repo, git_config *config) |
9462c471 | 62 | { |
e976b56d RB |
63 | if (config) { |
64 | GIT_REFCOUNT_OWN(config, repo); | |
65 | GIT_REFCOUNT_INC(config); | |
66 | } | |
67 | ||
68 | if ((config = git__swap(repo->_config, config)) != NULL) { | |
69 | GIT_REFCOUNT_OWN(config, NULL); | |
70 | git_config_free(config); | |
eb2f3b47 | 71 | } |
e976b56d RB |
72 | |
73 | git_repository__cvar_cache_clear(repo); | |
691aa968 VM |
74 | } |
75 | ||
e976b56d | 76 | static void set_index(git_repository *repo, git_index *index) |
6fd195d7 | 77 | { |
e976b56d RB |
78 | if (index) { |
79 | GIT_REFCOUNT_OWN(index, repo); | |
80 | GIT_REFCOUNT_INC(index); | |
81 | } | |
82 | ||
83 | if ((index = git__swap(repo->_index, index)) != NULL) { | |
84 | GIT_REFCOUNT_OWN(index, NULL); | |
85 | git_index_free(index); | |
9462c471 | 86 | } |
e0011be3 VM |
87 | } |
88 | ||
879458e7 | 89 | void git_repository__cleanup(git_repository *repo) |
e0011be3 | 90 | { |
879458e7 | 91 | assert(repo); |
6fd195d7 | 92 | |
879458e7 | 93 | git_cache_clear(&repo->objects); |
73b51450 | 94 | git_attr_cache_flush(repo); |
6fd195d7 | 95 | |
e976b56d RB |
96 | set_config(repo, NULL); |
97 | set_index(repo, NULL); | |
98 | set_odb(repo, NULL); | |
99 | set_refdb(repo, NULL); | |
879458e7 VM |
100 | } |
101 | ||
102 | void git_repository_free(git_repository *repo) | |
103 | { | |
104 | if (repo == NULL) | |
105 | return; | |
106 | ||
107 | git_repository__cleanup(repo); | |
108 | ||
109 | git_cache_free(&repo->objects); | |
110 | git_submodule_config_free(repo); | |
9462c471 | 111 | |
53607868 RB |
112 | git__free(repo->path_repository); |
113 | git__free(repo->workdir); | |
bade5194 | 114 | git__free(repo->namespace); |
53607868 | 115 | |
9462c471 | 116 | git__free(repo); |
6fd195d7 VM |
117 | } |
118 | ||
9462c471 VM |
119 | /* |
120 | * Git repository open methods | |
121 | * | |
122 | * Open a repository object from its path | |
123 | */ | |
cb8a7961 | 124 | static bool valid_repository_path(git_buf *repository_path) |
5ad739e8 | 125 | { |
97769280 | 126 | /* Check OBJECTS_DIR first, since it will generate the longest path name */ |
1a481123 | 127 | if (git_path_contains_dir(repository_path, GIT_OBJECTS_DIR) == false) |
cb8a7961 | 128 | return false; |
5ad739e8 | 129 | |
97769280 | 130 | /* Ensure HEAD file exists */ |
1a481123 | 131 | if (git_path_contains_file(repository_path, GIT_HEAD_FILE) == false) |
cb8a7961 | 132 | return false; |
5ad739e8 | 133 | |
1a481123 | 134 | if (git_path_contains_dir(repository_path, GIT_REFS_DIR) == false) |
cb8a7961 | 135 | return false; |
5ad739e8 | 136 | |
cb8a7961 | 137 | return true; |
5ad739e8 VM |
138 | } |
139 | ||
51d00446 | 140 | static git_repository *repository_alloc(void) |
3315782c VM |
141 | { |
142 | git_repository *repo = git__malloc(sizeof(git_repository)); | |
143 | if (!repo) | |
144 | return NULL; | |
145 | ||
146 | memset(repo, 0x0, sizeof(git_repository)); | |
147 | ||
5df18424 | 148 | if (git_cache_init(&repo->objects) < 0) { |
3286c408 | 149 | git__free(repo); |
81201a4c | 150 | return NULL; |
151 | } | |
3315782c | 152 | |
f2c25d18 VM |
153 | /* set all the entries in the cvar cache to `unset` */ |
154 | git_repository__cvar_cache_clear(repo); | |
155 | ||
6fd195d7 VM |
156 | return repo; |
157 | } | |
158 | ||
7cc3c920 JW |
159 | int git_repository_new(git_repository **out) |
160 | { | |
161 | *out = repository_alloc(); | |
162 | return 0; | |
163 | } | |
164 | ||
9462c471 | 165 | static int load_config_data(git_repository *repo) |
ec3c7a16 | 166 | { |
cb8a7961 | 167 | int is_bare; |
9462c471 | 168 | git_config *config; |
ec3c7a16 | 169 | |
cb8a7961 VM |
170 | if (git_repository_config__weakptr(&config, repo) < 0) |
171 | return -1; | |
ec3c7a16 | 172 | |
d3e9c4a5 | 173 | /* Try to figure out if it's bare, default to non-bare if it's not set */ |
29e948de | 174 | if (git_config_get_bool(&is_bare, config, "core.bare") < 0) |
d3e9c4a5 CMN |
175 | repo->is_bare = 0; |
176 | else | |
177 | repo->is_bare = is_bare; | |
c94785a9 | 178 | |
cb8a7961 | 179 | return 0; |
9462c471 | 180 | } |
ec3c7a16 | 181 | |
7784bcbb | 182 | static int load_workdir(git_repository *repo, git_buf *parent_path) |
9462c471 | 183 | { |
7784bcbb RB |
184 | int error; |
185 | git_config *config; | |
186 | const char *worktree; | |
187 | git_buf worktree_buf = GIT_BUF_INIT; | |
ec3c7a16 | 188 | |
97769280 | 189 | if (repo->is_bare) |
cb8a7961 | 190 | return 0; |
ec3c7a16 | 191 | |
7784bcbb | 192 | if (git_repository_config__weakptr(&config, repo) < 0) |
cb8a7961 | 193 | return -1; |
ec3c7a16 | 194 | |
29e948de | 195 | error = git_config_get_string(&worktree, config, "core.worktree"); |
5f4a61ae RB |
196 | if (!error && worktree != NULL) { |
197 | error = git_path_prettify_dir( | |
198 | &worktree_buf, worktree, repo->path_repository); | |
199 | if (error < 0) | |
200 | return error; | |
201 | repo->workdir = git_buf_detach(&worktree_buf); | |
202 | } | |
904b67e6 | 203 | else if (error != GIT_ENOTFOUND) |
7784bcbb RB |
204 | return error; |
205 | else { | |
206 | giterr_clear(); | |
207 | ||
208 | if (parent_path && git_path_isdir(parent_path->ptr)) | |
209 | repo->workdir = git_buf_detach(parent_path); | |
210 | else { | |
211 | git_path_dirname_r(&worktree_buf, repo->path_repository); | |
212 | git_path_to_dir(&worktree_buf); | |
213 | repo->workdir = git_buf_detach(&worktree_buf); | |
214 | } | |
215 | } | |
216 | ||
217 | GITERR_CHECK_ALLOC(repo->workdir); | |
97769280 | 218 | |
cb8a7961 | 219 | return 0; |
ec3c7a16 VM |
220 | } |
221 | ||
7784bcbb RB |
222 | /* |
223 | * This function returns furthest offset into path where a ceiling dir | |
224 | * is found, so we can stop processing the path at that point. | |
225 | * | |
226 | * Note: converting this to use git_bufs instead of GIT_PATH_MAX buffers on | |
227 | * the stack could remove directories name limits, but at the cost of doing | |
228 | * repeated malloc/frees inside the loop below, so let's not do it now. | |
229 | */ | |
230 | static int find_ceiling_dir_offset( | |
231 | const char *path, | |
232 | const char *ceiling_directories) | |
233 | { | |
234 | char buf[GIT_PATH_MAX + 1]; | |
235 | char buf2[GIT_PATH_MAX + 1]; | |
236 | const char *ceil, *sep; | |
44ef8b1b | 237 | size_t len, max_len = 0, min_len; |
7784bcbb RB |
238 | |
239 | assert(path); | |
240 | ||
44ef8b1b | 241 | min_len = (size_t)(git_path_root(path) + 1); |
7784bcbb RB |
242 | |
243 | if (ceiling_directories == NULL || min_len == 0) | |
44ef8b1b | 244 | return (int)min_len; |
7784bcbb RB |
245 | |
246 | for (sep = ceil = ceiling_directories; *sep; ceil = sep + 1) { | |
247 | for (sep = ceil; *sep && *sep != GIT_PATH_LIST_SEPARATOR; sep++); | |
248 | len = sep - ceil; | |
249 | ||
44ef8b1b | 250 | if (len == 0 || len >= sizeof(buf) || git_path_root(ceil) == -1) |
7784bcbb RB |
251 | continue; |
252 | ||
253 | strncpy(buf, ceil, len); | |
254 | buf[len] = '\0'; | |
255 | ||
256 | if (p_realpath(buf, buf2) == NULL) | |
257 | continue; | |
258 | ||
259 | len = strlen(buf2); | |
260 | if (len > 0 && buf2[len-1] == '/') | |
261 | buf[--len] = '\0'; | |
262 | ||
263 | if (!strncmp(path, buf2, len) && | |
264 | path[len] == '/' && | |
265 | len > max_len) | |
266 | { | |
267 | max_len = len; | |
268 | } | |
269 | } | |
270 | ||
44ef8b1b | 271 | return (int)(max_len <= min_len ? min_len : max_len); |
7784bcbb RB |
272 | } |
273 | ||
274 | /* | |
275 | * Read the contents of `file_path` and set `path_out` to the repo dir that | |
276 | * it points to. Before calling, set `path_out` to the base directory that | |
277 | * should be used if the contents of `file_path` are a relative path. | |
278 | */ | |
279 | static int read_gitfile(git_buf *path_out, const char *file_path) | |
280 | { | |
281 | int error = 0; | |
282 | git_buf file = GIT_BUF_INIT; | |
283 | size_t prefix_len = strlen(GIT_FILE_CONTENT_PREFIX); | |
284 | ||
285 | assert(path_out && file_path); | |
286 | ||
287 | if (git_futils_readbuffer(&file, file_path) < 0) | |
288 | return -1; | |
289 | ||
290 | git_buf_rtrim(&file); | |
291 | ||
662880ca RB |
292 | if (git_buf_len(&file) <= prefix_len || |
293 | memcmp(git_buf_cstr(&file), GIT_FILE_CONTENT_PREFIX, prefix_len) != 0) | |
7784bcbb RB |
294 | { |
295 | giterr_set(GITERR_REPOSITORY, "The `.git` file at '%s' is malformed", file_path); | |
296 | error = -1; | |
297 | } | |
298 | else if ((error = git_path_dirname_r(path_out, file_path)) >= 0) { | |
662880ca | 299 | const char *gitlink = git_buf_cstr(&file) + prefix_len; |
0f49200c | 300 | while (*gitlink && git__isspace(*gitlink)) gitlink++; |
662880ca RB |
301 | error = git_path_prettify_dir( |
302 | path_out, gitlink, git_buf_cstr(path_out)); | |
7784bcbb RB |
303 | } |
304 | ||
305 | git_buf_free(&file); | |
306 | return error; | |
307 | } | |
308 | ||
309 | static int find_repo( | |
310 | git_buf *repo_path, | |
311 | git_buf *parent_path, | |
312 | const char *start_path, | |
313 | uint32_t flags, | |
314 | const char *ceiling_dirs) | |
691aa968 | 315 | { |
7784bcbb RB |
316 | int error; |
317 | git_buf path = GIT_BUF_INIT; | |
318 | struct stat st; | |
319 | dev_t initial_device = 0; | |
320 | bool try_with_dot_git = false; | |
321 | int ceiling_offset; | |
322 | ||
323 | git_buf_free(repo_path); | |
324 | ||
325 | if ((error = git_path_prettify_dir(&path, start_path, NULL)) < 0) | |
326 | return error; | |
327 | ||
328 | ceiling_offset = find_ceiling_dir_offset(path.ptr, ceiling_dirs); | |
329 | ||
330 | if ((error = git_buf_joinpath(&path, path.ptr, DOT_GIT)) < 0) | |
331 | return error; | |
332 | ||
fa6420f7 | 333 | while (!error && !git_buf_len(repo_path)) { |
7784bcbb RB |
334 | if (p_stat(path.ptr, &st) == 0) { |
335 | /* check that we have not crossed device boundaries */ | |
336 | if (initial_device == 0) | |
337 | initial_device = st.st_dev; | |
338 | else if (st.st_dev != initial_device && | |
339 | (flags & GIT_REPOSITORY_OPEN_CROSS_FS) == 0) | |
340 | break; | |
341 | ||
342 | if (S_ISDIR(st.st_mode)) { | |
343 | if (valid_repository_path(&path)) { | |
344 | git_path_to_dir(&path); | |
345 | git_buf_set(repo_path, path.ptr, path.size); | |
346 | break; | |
347 | } | |
348 | } | |
349 | else if (S_ISREG(st.st_mode)) { | |
350 | git_buf repo_link = GIT_BUF_INIT; | |
351 | ||
352 | if (!(error = read_gitfile(&repo_link, path.ptr))) { | |
353 | if (valid_repository_path(&repo_link)) | |
354 | git_buf_swap(repo_path, &repo_link); | |
146f5c75 CMN |
355 | |
356 | git_buf_free(&repo_link); | |
7784bcbb RB |
357 | break; |
358 | } | |
359 | git_buf_free(&repo_link); | |
360 | } | |
361 | } | |
362 | ||
363 | /* move up one directory level */ | |
364 | if (git_path_dirname_r(&path, path.ptr) < 0) { | |
365 | error = -1; | |
366 | break; | |
367 | } | |
368 | ||
369 | if (try_with_dot_git) { | |
370 | /* if we tried original dir with and without .git AND either hit | |
371 | * directory ceiling or NO_SEARCH was requested, then be done. | |
372 | */ | |
373 | if (path.ptr[ceiling_offset] == '\0' || | |
374 | (flags & GIT_REPOSITORY_OPEN_NO_SEARCH) != 0) | |
375 | break; | |
376 | /* otherwise look first for .git item */ | |
377 | error = git_buf_joinpath(&path, path.ptr, DOT_GIT); | |
378 | } | |
379 | try_with_dot_git = !try_with_dot_git; | |
380 | } | |
381 | ||
382 | if (!error && parent_path != NULL) { | |
fa6420f7 | 383 | if (!git_buf_len(repo_path)) |
7784bcbb RB |
384 | git_buf_clear(parent_path); |
385 | else { | |
386 | git_path_dirname_r(parent_path, path.ptr); | |
387 | git_path_to_dir(parent_path); | |
388 | } | |
389 | if (git_buf_oom(parent_path)) | |
390 | return -1; | |
391 | } | |
392 | ||
393 | git_buf_free(&path); | |
394 | ||
fa6420f7 | 395 | if (!git_buf_len(repo_path) && !error) { |
cb8a7961 | 396 | giterr_set(GITERR_REPOSITORY, |
7784bcbb | 397 | "Could not find repository from '%s'", start_path); |
904b67e6 | 398 | error = GIT_ENOTFOUND; |
97769280 | 399 | } |
691aa968 | 400 | |
7784bcbb RB |
401 | return error; |
402 | } | |
403 | ||
a442ed68 VM |
404 | int git_repository_open_bare( |
405 | git_repository **repo_ptr, | |
406 | const char *bare_path) | |
407 | { | |
408 | int error; | |
409 | git_buf path = GIT_BUF_INIT; | |
410 | git_repository *repo = NULL; | |
411 | ||
412 | if ((error = git_path_prettify_dir(&path, bare_path, NULL)) < 0) | |
413 | return error; | |
414 | ||
415 | if (!valid_repository_path(&path)) { | |
416 | git_buf_free(&path); | |
417 | giterr_set(GITERR_REPOSITORY, "Path is not a repository: %s", bare_path); | |
418 | return GIT_ENOTFOUND; | |
419 | } | |
420 | ||
421 | repo = repository_alloc(); | |
422 | GITERR_CHECK_ALLOC(repo); | |
423 | ||
424 | repo->path_repository = git_buf_detach(&path); | |
425 | GITERR_CHECK_ALLOC(repo->path_repository); | |
426 | ||
427 | /* of course we're bare! */ | |
428 | repo->is_bare = 1; | |
429 | repo->workdir = NULL; | |
430 | ||
431 | *repo_ptr = repo; | |
432 | return 0; | |
433 | } | |
434 | ||
7784bcbb RB |
435 | int git_repository_open_ext( |
436 | git_repository **repo_ptr, | |
437 | const char *start_path, | |
c9fc4a6f | 438 | unsigned int flags, |
7784bcbb RB |
439 | const char *ceiling_dirs) |
440 | { | |
441 | int error; | |
442 | git_buf path = GIT_BUF_INIT, parent = GIT_BUF_INIT; | |
443 | git_repository *repo; | |
444 | ||
662880ca RB |
445 | if (repo_ptr) |
446 | *repo_ptr = NULL; | |
7784bcbb | 447 | |
662880ca RB |
448 | error = find_repo(&path, &parent, start_path, flags, ceiling_dirs); |
449 | if (error < 0 || !repo_ptr) | |
7784bcbb RB |
450 | return error; |
451 | ||
e52ed7a5 | 452 | repo = repository_alloc(); |
cb8a7961 | 453 | GITERR_CHECK_ALLOC(repo); |
691aa968 | 454 | |
7784bcbb | 455 | repo->path_repository = git_buf_detach(&path); |
cb8a7961 | 456 | GITERR_CHECK_ALLOC(repo->path_repository); |
691aa968 | 457 | |
7784bcbb RB |
458 | if ((error = load_config_data(repo)) < 0 || |
459 | (error = load_workdir(repo, &parent)) < 0) | |
460 | { | |
461 | git_repository_free(repo); | |
462 | return error; | |
463 | } | |
691aa968 | 464 | |
146f5c75 | 465 | git_buf_free(&parent); |
7784bcbb | 466 | *repo_ptr = repo; |
cb8a7961 | 467 | return 0; |
7784bcbb | 468 | } |
97769280 | 469 | |
7784bcbb RB |
470 | int git_repository_open(git_repository **repo_out, const char *path) |
471 | { | |
472 | return git_repository_open_ext( | |
473 | repo_out, path, GIT_REPOSITORY_OPEN_NO_SEARCH, NULL); | |
474 | } | |
475 | ||
6782245e CMN |
476 | int git_repository_wrap_odb(git_repository **repo_out, git_odb *odb) |
477 | { | |
478 | git_repository *repo; | |
479 | ||
480 | repo = repository_alloc(); | |
481 | GITERR_CHECK_ALLOC(repo); | |
482 | ||
483 | git_repository_set_odb(repo, odb); | |
484 | *repo_out = repo; | |
485 | ||
486 | return 0; | |
487 | } | |
488 | ||
7784bcbb RB |
489 | int git_repository_discover( |
490 | char *repository_path, | |
491 | size_t size, | |
492 | const char *start_path, | |
493 | int across_fs, | |
494 | const char *ceiling_dirs) | |
495 | { | |
496 | git_buf path = GIT_BUF_INIT; | |
497 | uint32_t flags = across_fs ? GIT_REPOSITORY_OPEN_CROSS_FS : 0; | |
464cf248 | 498 | int error; |
7784bcbb RB |
499 | |
500 | assert(start_path && repository_path && size > 0); | |
501 | ||
502 | *repository_path = '\0'; | |
503 | ||
464cf248 | 504 | if ((error = find_repo(&path, NULL, start_path, flags, ceiling_dirs)) < 0) |
904b67e6 | 505 | return error != GIT_ENOTFOUND ? -1 : error; |
7784bcbb RB |
506 | |
507 | if (size < (size_t)(path.size + 1)) { | |
508 | giterr_set(GITERR_REPOSITORY, | |
13b554e3 | 509 | "The given buffer is too small to store the discovered path"); |
7784bcbb RB |
510 | git_buf_free(&path); |
511 | return -1; | |
512 | } | |
513 | ||
514 | /* success: we discovered a repository */ | |
515 | git_buf_copy_cstr(repository_path, size, &path); | |
516 | git_buf_free(&path); | |
517 | return 0; | |
691aa968 VM |
518 | } |
519 | ||
9462c471 | 520 | static int load_config( |
7784bcbb RB |
521 | git_config **out, |
522 | git_repository *repo, | |
523 | const char *global_config_path, | |
4258d483 | 524 | const char *xdg_config_path, |
7784bcbb | 525 | const char *system_config_path) |
b22d1479 | 526 | { |
cc6b4162 | 527 | int error; |
97769280 | 528 | git_buf config_path = GIT_BUF_INIT; |
9462c471 | 529 | git_config *cfg = NULL; |
b22d1479 | 530 | |
9462c471 | 531 | assert(repo && out); |
07ff8817 | 532 | |
cc6b4162 RB |
533 | if ((error = git_config_new(&cfg)) < 0) |
534 | return error; | |
b22d1479 | 535 | |
cc6b4162 RB |
536 | error = git_buf_joinpath( |
537 | &config_path, repo->path_repository, GIT_CONFIG_FILENAME_INREPO); | |
538 | if (error < 0) | |
cb8a7961 | 539 | goto on_error; |
97769280 | 540 | |
cc6b4162 RB |
541 | if ((error = git_config_add_file_ondisk( |
542 | cfg, config_path.ptr, GIT_CONFIG_LEVEL_LOCAL, 0)) < 0 && | |
543 | error != GIT_ENOTFOUND) | |
cb8a7961 VM |
544 | goto on_error; |
545 | ||
546 | git_buf_free(&config_path); | |
b22d1479 | 547 | |
cc6b4162 RB |
548 | if (global_config_path != NULL && |
549 | (error = git_config_add_file_ondisk( | |
550 | cfg, global_config_path, GIT_CONFIG_LEVEL_GLOBAL, 0)) < 0 && | |
551 | error != GIT_ENOTFOUND) | |
552 | goto on_error; | |
8b4f9b17 | 553 | |
cc6b4162 RB |
554 | if (xdg_config_path != NULL && |
555 | (error = git_config_add_file_ondisk( | |
556 | cfg, xdg_config_path, GIT_CONFIG_LEVEL_XDG, 0)) < 0 && | |
557 | error != GIT_ENOTFOUND) | |
558 | goto on_error; | |
b22d1479 | 559 | |
cc6b4162 RB |
560 | if (system_config_path != NULL && |
561 | (error = git_config_add_file_ondisk( | |
562 | cfg, system_config_path, GIT_CONFIG_LEVEL_SYSTEM, 0)) < 0 && | |
563 | error != GIT_ENOTFOUND) | |
564 | goto on_error; | |
9ba9e513 | 565 | |
38f7d026 RB |
566 | giterr_clear(); /* clear any lingering ENOTFOUND errors */ |
567 | ||
9462c471 | 568 | *out = cfg; |
cb8a7961 | 569 | return 0; |
b22d1479 | 570 | |
cb8a7961 VM |
571 | on_error: |
572 | git_buf_free(&config_path); | |
9462c471 VM |
573 | git_config_free(cfg); |
574 | *out = NULL; | |
cc6b4162 | 575 | return error; |
b22d1479 CMN |
576 | } |
577 | ||
53607868 | 578 | static const char *path_unless_empty(git_buf *buf) |
40fe5fbe | 579 | { |
53607868 RB |
580 | return git_buf_len(buf) > 0 ? git_buf_cstr(buf) : NULL; |
581 | } | |
8b4f9b17 | 582 | |
53607868 RB |
583 | int git_repository_config__weakptr(git_config **out, git_repository *repo) |
584 | { | |
585 | int error = 0; | |
40fe5fbe | 586 | |
53607868 RB |
587 | if (repo->_config == NULL) { |
588 | git_buf global_buf = GIT_BUF_INIT; | |
589 | git_buf xdg_buf = GIT_BUF_INIT; | |
590 | git_buf system_buf = GIT_BUF_INIT; | |
591 | git_config *config; | |
592 | ||
593 | git_config_find_global_r(&global_buf); | |
594 | git_config_find_xdg_r(&xdg_buf); | |
595 | git_config_find_system_r(&system_buf); | |
596 | ||
a4b75dcf CMN |
597 | /* If there is no global file, open a backend for it anyway */ |
598 | if (git_buf_len(&global_buf) == 0) | |
599 | git_config__global_location(&global_buf); | |
600 | ||
53607868 RB |
601 | error = load_config( |
602 | &config, repo, | |
603 | path_unless_empty(&global_buf), | |
604 | path_unless_empty(&xdg_buf), | |
605 | path_unless_empty(&system_buf)); | |
606 | if (!error) { | |
607 | GIT_REFCOUNT_OWN(config, repo); | |
608 | ||
e976b56d | 609 | config = git__compare_and_swap(&repo->_config, NULL, config); |
53607868 RB |
610 | if (config != NULL) { |
611 | GIT_REFCOUNT_OWN(config, NULL); | |
612 | git_config_free(config); | |
613 | } | |
614 | } | |
97769280 RB |
615 | |
616 | git_buf_free(&global_buf); | |
a8918418 | 617 | git_buf_free(&xdg_buf); |
97769280 | 618 | git_buf_free(&system_buf); |
9462c471 | 619 | } |
40fe5fbe | 620 | |
9462c471 | 621 | *out = repo->_config; |
53607868 | 622 | return error; |
40fe5fbe CMN |
623 | } |
624 | ||
9462c471 | 625 | int git_repository_config(git_config **out, git_repository *repo) |
fd0574e5 | 626 | { |
cb8a7961 VM |
627 | if (git_repository_config__weakptr(out, repo) < 0) |
628 | return -1; | |
fd0574e5 | 629 | |
cb8a7961 VM |
630 | GIT_REFCOUNT_INC(*out); |
631 | return 0; | |
9462c471 VM |
632 | } |
633 | ||
634 | void git_repository_set_config(git_repository *repo, git_config *config) | |
635 | { | |
636 | assert(repo && config); | |
e976b56d | 637 | set_config(repo, config); |
9462c471 VM |
638 | } |
639 | ||
640 | int git_repository_odb__weakptr(git_odb **out, git_repository *repo) | |
641 | { | |
53607868 RB |
642 | int error = 0; |
643 | ||
9462c471 VM |
644 | assert(repo && out); |
645 | ||
646 | if (repo->_odb == NULL) { | |
97769280 | 647 | git_buf odb_path = GIT_BUF_INIT; |
53607868 | 648 | git_odb *odb; |
9462c471 | 649 | |
53607868 | 650 | git_buf_joinpath(&odb_path, repo->path_repository, GIT_OBJECTS_DIR); |
9462c471 | 651 | |
53607868 RB |
652 | error = git_odb_open(&odb, odb_path.ptr); |
653 | if (!error) { | |
654 | GIT_REFCOUNT_OWN(odb, repo); | |
cb8a7961 | 655 | |
e976b56d | 656 | odb = git__compare_and_swap(&repo->_odb, NULL, odb); |
53607868 RB |
657 | if (odb != NULL) { |
658 | GIT_REFCOUNT_OWN(odb, NULL); | |
659 | git_odb_free(odb); | |
660 | } | |
661 | } | |
9462c471 | 662 | |
53607868 | 663 | git_buf_free(&odb_path); |
9462c471 | 664 | } |
fd0574e5 | 665 | |
9462c471 | 666 | *out = repo->_odb; |
53607868 | 667 | return error; |
fd0574e5 RG |
668 | } |
669 | ||
9462c471 | 670 | int git_repository_odb(git_odb **out, git_repository *repo) |
6fd195d7 | 671 | { |
cb8a7961 VM |
672 | if (git_repository_odb__weakptr(out, repo) < 0) |
673 | return -1; | |
1795f879 | 674 | |
cb8a7961 VM |
675 | GIT_REFCOUNT_INC(*out); |
676 | return 0; | |
9462c471 | 677 | } |
6fd195d7 | 678 | |
9462c471 VM |
679 | void git_repository_set_odb(git_repository *repo, git_odb *odb) |
680 | { | |
681 | assert(repo && odb); | |
e976b56d | 682 | set_odb(repo, odb); |
9462c471 VM |
683 | } |
684 | ||
d00d5464 ET |
685 | int git_repository_refdb__weakptr(git_refdb **out, git_repository *repo) |
686 | { | |
53607868 RB |
687 | int error = 0; |
688 | ||
d00d5464 ET |
689 | assert(out && repo); |
690 | ||
691 | if (repo->_refdb == NULL) { | |
53607868 | 692 | git_refdb *refdb; |
d00d5464 | 693 | |
53607868 RB |
694 | error = git_refdb_open(&refdb, repo); |
695 | if (!error) { | |
696 | GIT_REFCOUNT_OWN(refdb, repo); | |
d00d5464 | 697 | |
e976b56d | 698 | refdb = git__compare_and_swap(&repo->_refdb, NULL, refdb); |
53607868 RB |
699 | if (refdb != NULL) { |
700 | GIT_REFCOUNT_OWN(refdb, NULL); | |
701 | git_refdb_free(refdb); | |
702 | } | |
703 | } | |
d00d5464 ET |
704 | } |
705 | ||
706 | *out = repo->_refdb; | |
53607868 | 707 | return error; |
d00d5464 ET |
708 | } |
709 | ||
710 | int git_repository_refdb(git_refdb **out, git_repository *repo) | |
711 | { | |
712 | if (git_repository_refdb__weakptr(out, repo) < 0) | |
713 | return -1; | |
714 | ||
715 | GIT_REFCOUNT_INC(*out); | |
716 | return 0; | |
717 | } | |
718 | ||
719 | void git_repository_set_refdb(git_repository *repo, git_refdb *refdb) | |
720 | { | |
53607868 | 721 | assert(repo && refdb); |
e976b56d | 722 | set_refdb(repo, refdb); |
d00d5464 ET |
723 | } |
724 | ||
9462c471 VM |
725 | int git_repository_index__weakptr(git_index **out, git_repository *repo) |
726 | { | |
53607868 RB |
727 | int error = 0; |
728 | ||
9462c471 VM |
729 | assert(out && repo); |
730 | ||
9462c471 | 731 | if (repo->_index == NULL) { |
97769280 | 732 | git_buf index_path = GIT_BUF_INIT; |
53607868 | 733 | git_index *index; |
9462c471 | 734 | |
53607868 | 735 | git_buf_joinpath(&index_path, repo->path_repository, GIT_INDEX_FILE); |
9462c471 | 736 | |
53607868 RB |
737 | error = git_index_open(&index, index_path.ptr); |
738 | if (!error) { | |
739 | GIT_REFCOUNT_OWN(index, repo); | |
cb8a7961 | 740 | |
e976b56d | 741 | index = git__compare_and_swap(&repo->_index, NULL, index); |
53607868 RB |
742 | if (index != NULL) { |
743 | GIT_REFCOUNT_OWN(index, NULL); | |
744 | git_index_free(index); | |
745 | } | |
9462c471 | 746 | |
53607868 RB |
747 | error = git_index_set_caps(repo->_index, GIT_INDEXCAP_FROM_OWNER); |
748 | } | |
da825c92 | 749 | |
53607868 | 750 | git_buf_free(&index_path); |
9462c471 VM |
751 | } |
752 | ||
9462c471 | 753 | *out = repo->_index; |
53607868 | 754 | return error; |
9462c471 | 755 | } |
1795f879 | 756 | |
9462c471 VM |
757 | int git_repository_index(git_index **out, git_repository *repo) |
758 | { | |
cb8a7961 VM |
759 | if (git_repository_index__weakptr(out, repo) < 0) |
760 | return -1; | |
9462c471 | 761 | |
cb8a7961 VM |
762 | GIT_REFCOUNT_INC(*out); |
763 | return 0; | |
3315782c VM |
764 | } |
765 | ||
9462c471 VM |
766 | void git_repository_set_index(git_repository *repo, git_index *index) |
767 | { | |
768 | assert(repo && index); | |
e976b56d | 769 | set_index(repo, index); |
9462c471 VM |
770 | } |
771 | ||
bade5194 VM |
772 | int git_repository_set_namespace(git_repository *repo, const char *namespace) |
773 | { | |
774 | git__free(repo->namespace); | |
775 | ||
776 | if (namespace == NULL) { | |
777 | repo->namespace = NULL; | |
778 | return 0; | |
779 | } | |
780 | ||
781 | return (repo->namespace = git__strdup(namespace)) ? 0 : -1; | |
782 | } | |
783 | ||
784 | const char *git_repository_get_namespace(git_repository *repo) | |
785 | { | |
786 | return repo->namespace; | |
787 | } | |
788 | ||
2c227b8b | 789 | static int check_repositoryformatversion(git_config *config) |
40c44d2f | 790 | { |
cb8a7961 | 791 | int version; |
5663e61a | 792 | |
29e948de | 793 | if (git_config_get_int32(&version, config, "core.repositoryformatversion") < 0) |
cb8a7961 | 794 | return -1; |
5663e61a | 795 | |
29e948de | 796 | if (GIT_REPO_VERSION < version) { |
cb8a7961 VM |
797 | giterr_set(GITERR_REPOSITORY, |
798 | "Unsupported repository version %d. Only versions up to %d are supported.", | |
29e948de | 799 | version, GIT_REPO_VERSION); |
cb8a7961 VM |
800 | return -1; |
801 | } | |
5663e61a | 802 | |
cb8a7961 | 803 | return 0; |
5663e61a | 804 | } |
805 | ||
662880ca | 806 | static int repo_init_create_head(const char *git_dir, const char *ref_name) |
e1f8cad0 | 807 | { |
97769280 | 808 | git_buf ref_path = GIT_BUF_INIT; |
9462c471 | 809 | git_filebuf ref = GIT_FILEBUF_INIT; |
662880ca | 810 | const char *fmt; |
9462c471 | 811 | |
cb8a7961 | 812 | if (git_buf_joinpath(&ref_path, git_dir, GIT_HEAD_FILE) < 0 || |
662880ca RB |
813 | git_filebuf_open(&ref, ref_path.ptr, 0) < 0) |
814 | goto fail; | |
815 | ||
816 | if (!ref_name) | |
817 | ref_name = GIT_BRANCH_MASTER; | |
818 | ||
74a24005 | 819 | if (git__prefixcmp(ref_name, GIT_REFS_DIR) == 0) |
662880ca RB |
820 | fmt = "ref: %s\n"; |
821 | else | |
74a24005 | 822 | fmt = "ref: " GIT_REFS_HEADS_DIR "%s\n"; |
662880ca RB |
823 | |
824 | if (git_filebuf_printf(&ref, fmt, ref_name) < 0 || | |
cb8a7961 | 825 | git_filebuf_commit(&ref, GIT_REFS_FILE_MODE) < 0) |
662880ca | 826 | goto fail; |
9462c471 | 827 | |
97769280 | 828 | git_buf_free(&ref_path); |
cb8a7961 | 829 | return 0; |
662880ca RB |
830 | |
831 | fail: | |
832 | git_buf_free(&ref_path); | |
833 | git_filebuf_cleanup(&ref); | |
834 | return -1; | |
9462c471 VM |
835 | } |
836 | ||
fac66990 | 837 | static bool is_chmod_supported(const char *file_path) |
838 | { | |
839 | struct stat st1, st2; | |
840 | static int _is_supported = -1; | |
841 | ||
842 | if (_is_supported > -1) | |
843 | return _is_supported; | |
844 | ||
845 | if (p_stat(file_path, &st1) < 0) | |
846 | return false; | |
847 | ||
848 | if (p_chmod(file_path, st1.st_mode ^ S_IXUSR) < 0) | |
849 | return false; | |
850 | ||
851 | if (p_stat(file_path, &st2) < 0) | |
852 | return false; | |
853 | ||
854 | _is_supported = (st1.st_mode != st2.st_mode); | |
ca1b6e54 | 855 | |
fac66990 | 856 | return _is_supported; |
857 | } | |
858 | ||
693b23c0 | 859 | static bool is_filesystem_case_insensitive(const char *gitdir_path) |
860 | { | |
861 | git_buf path = GIT_BUF_INIT; | |
862 | static int _is_insensitive = -1; | |
863 | ||
864 | if (_is_insensitive > -1) | |
865 | return _is_insensitive; | |
866 | ||
867 | if (git_buf_joinpath(&path, gitdir_path, "CoNfIg") < 0) | |
868 | goto cleanup; | |
869 | ||
870 | _is_insensitive = git_path_exists(git_buf_cstr(&path)); | |
871 | ||
872 | cleanup: | |
873 | git_buf_free(&path); | |
874 | return _is_insensitive; | |
875 | } | |
876 | ||
ca1b6e54 RB |
877 | static bool are_symlinks_supported(const char *wd_path) |
878 | { | |
879 | git_buf path = GIT_BUF_INIT; | |
880 | int fd; | |
881 | struct stat st; | |
882 | static int _symlinks_supported = -1; | |
883 | ||
884 | if (_symlinks_supported > -1) | |
885 | return _symlinks_supported; | |
886 | ||
887 | if ((fd = git_futils_mktmp(&path, wd_path)) < 0 || | |
888 | p_close(fd) < 0 || | |
889 | p_unlink(path.ptr) < 0 || | |
890 | p_symlink("testing", path.ptr) < 0 || | |
891 | p_lstat(path.ptr, &st) < 0) | |
892 | _symlinks_supported = false; | |
893 | else | |
894 | _symlinks_supported = (S_ISLNK(st.st_mode) != 0); | |
895 | ||
896 | (void)p_unlink(path.ptr); | |
897 | git_buf_free(&path); | |
898 | ||
899 | return _symlinks_supported; | |
900 | } | |
901 | ||
270160b9 | 902 | static int create_empty_file(const char *path, mode_t mode) |
903 | { | |
904 | int fd; | |
905 | ||
906 | if ((fd = p_creat(path, mode)) < 0) { | |
907 | giterr_set(GITERR_OS, "Error while creating '%s'", path); | |
908 | return -1; | |
909 | } | |
910 | ||
911 | if (p_close(fd) < 0) { | |
912 | giterr_set(GITERR_OS, "Error while closing '%s'", path); | |
913 | return -1; | |
914 | } | |
915 | ||
916 | return 0; | |
917 | } | |
918 | ||
662880ca | 919 | static int repo_init_config( |
ca1b6e54 RB |
920 | const char *repo_dir, |
921 | const char *work_dir, | |
922 | git_repository_init_options *opts) | |
9462c471 | 923 | { |
ca1b6e54 | 924 | int error = 0; |
97769280 RB |
925 | git_buf cfg_path = GIT_BUF_INIT; |
926 | git_config *config = NULL; | |
9462c471 | 927 | |
ca1b6e54 RB |
928 | #define SET_REPO_CONFIG(TYPE, NAME, VAL) do {\ |
929 | if ((error = git_config_set_##TYPE(config, NAME, VAL)) < 0) \ | |
930 | goto cleanup; } while (0) | |
9462c471 | 931 | |
ca1b6e54 | 932 | if (git_buf_joinpath(&cfg_path, repo_dir, GIT_CONFIG_FILENAME_INREPO) < 0) |
cb8a7961 | 933 | return -1; |
9462c471 | 934 | |
270160b9 | 935 | if (!git_path_isfile(git_buf_cstr(&cfg_path)) && |
936 | create_empty_file(git_buf_cstr(&cfg_path), GIT_CONFIG_FILE_MODE) < 0) { | |
937 | git_buf_free(&cfg_path); | |
938 | return -1; | |
939 | } | |
940 | ||
fac66990 | 941 | if (git_config_open_ondisk(&config, git_buf_cstr(&cfg_path)) < 0) { |
cb8a7961 VM |
942 | git_buf_free(&cfg_path); |
943 | return -1; | |
944 | } | |
9462c471 | 945 | |
662880ca | 946 | if ((opts->flags & GIT_REPOSITORY_INIT__IS_REINIT) != 0 && |
ca1b6e54 RB |
947 | (error = check_repositoryformatversion(config)) < 0) |
948 | goto cleanup; | |
2c227b8b | 949 | |
662880ca RB |
950 | SET_REPO_CONFIG( |
951 | bool, "core.bare", (opts->flags & GIT_REPOSITORY_INIT_BARE) != 0); | |
952 | SET_REPO_CONFIG( | |
953 | int32, "core.repositoryformatversion", GIT_REPO_VERSION); | |
954 | SET_REPO_CONFIG( | |
955 | bool, "core.filemode", is_chmod_supported(git_buf_cstr(&cfg_path))); | |
956 | ||
ca1b6e54 | 957 | if (!(opts->flags & GIT_REPOSITORY_INIT_BARE)) { |
7623b1b6 | 958 | SET_REPO_CONFIG(bool, "core.logallrefupdates", true); |
959 | ||
ca1b6e54 RB |
960 | if (!are_symlinks_supported(work_dir)) |
961 | SET_REPO_CONFIG(bool, "core.symlinks", false); | |
962 | ||
963 | if (!(opts->flags & GIT_REPOSITORY_INIT__NATURAL_WD)) { | |
964 | SET_REPO_CONFIG(string, "core.worktree", work_dir); | |
965 | } | |
966 | else if ((opts->flags & GIT_REPOSITORY_INIT__IS_REINIT) != 0) { | |
54b2a37a | 967 | if (git_config_delete_entry(config, "core.worktree") < 0) |
89cd5708 | 968 | giterr_clear(); |
ca1b6e54 RB |
969 | } |
970 | } else { | |
971 | if (!are_symlinks_supported(repo_dir)) | |
972 | SET_REPO_CONFIG(bool, "core.symlinks", false); | |
973 | } | |
974 | ||
662880ca | 975 | if (!(opts->flags & GIT_REPOSITORY_INIT__IS_REINIT) && |
ca1b6e54 | 976 | is_filesystem_case_insensitive(repo_dir)) |
693b23c0 | 977 | SET_REPO_CONFIG(bool, "core.ignorecase", true); |
662880ca | 978 | |
ca1b6e54 | 979 | if (opts->mode == GIT_REPOSITORY_INIT_SHARED_GROUP) { |
662880ca RB |
980 | SET_REPO_CONFIG(int32, "core.sharedrepository", 1); |
981 | SET_REPO_CONFIG(bool, "receive.denyNonFastforwards", true); | |
ca1b6e54 RB |
982 | } |
983 | else if (opts->mode == GIT_REPOSITORY_INIT_SHARED_ALL) { | |
662880ca RB |
984 | SET_REPO_CONFIG(int32, "core.sharedrepository", 2); |
985 | SET_REPO_CONFIG(bool, "receive.denyNonFastforwards", true); | |
986 | } | |
9462c471 | 987 | |
ca1b6e54 | 988 | cleanup: |
97769280 | 989 | git_buf_free(&cfg_path); |
9462c471 | 990 | git_config_free(config); |
662880ca | 991 | |
ca1b6e54 | 992 | return error; |
d2d6912e | 993 | } |
e1f8cad0 | 994 | |
dc34da6e | 995 | static int repo_write_template( |
991a56c7 RB |
996 | const char *git_dir, |
997 | bool allow_overwrite, | |
998 | const char *file, | |
999 | mode_t mode, | |
662880ca | 1000 | bool hidden, |
991a56c7 | 1001 | const char *content) |
dc34da6e RB |
1002 | { |
1003 | git_buf path = GIT_BUF_INIT; | |
991a56c7 | 1004 | int fd, error = 0, flags; |
dc34da6e RB |
1005 | |
1006 | if (git_buf_joinpath(&path, git_dir, file) < 0) | |
1007 | return -1; | |
1008 | ||
991a56c7 RB |
1009 | if (allow_overwrite) |
1010 | flags = O_WRONLY | O_CREAT | O_TRUNC; | |
1011 | else | |
1012 | flags = O_WRONLY | O_CREAT | O_EXCL; | |
1013 | ||
1014 | fd = p_open(git_buf_cstr(&path), flags, mode); | |
dc34da6e | 1015 | |
db628072 RB |
1016 | if (fd >= 0) { |
1017 | error = p_write(fd, content, strlen(content)); | |
dc34da6e | 1018 | |
db628072 RB |
1019 | p_close(fd); |
1020 | } | |
1021 | else if (errno != EEXIST) | |
1022 | error = fd; | |
dc34da6e | 1023 | |
662880ca RB |
1024 | #ifdef GIT_WIN32 |
1025 | if (!error && hidden) { | |
1026 | if (p_hide_directory__w32(path.ptr) < 0) | |
1027 | error = -1; | |
1028 | } | |
1029 | #else | |
1030 | GIT_UNUSED(hidden); | |
1031 | #endif | |
1032 | ||
dc34da6e | 1033 | git_buf_free(&path); |
db628072 RB |
1034 | |
1035 | if (error) | |
1036 | giterr_set(GITERR_OS, | |
1037 | "Failed to initialize repository with template '%s'", file); | |
1038 | ||
1039 | return error; | |
dc34da6e RB |
1040 | } |
1041 | ||
662880ca RB |
1042 | static int repo_write_gitlink( |
1043 | const char *in_dir, const char *to_repo) | |
4b8e27c8 | 1044 | { |
662880ca RB |
1045 | int error; |
1046 | git_buf buf = GIT_BUF_INIT; | |
1047 | struct stat st; | |
1048 | ||
1049 | git_path_dirname_r(&buf, to_repo); | |
1050 | git_path_to_dir(&buf); | |
1051 | if (git_buf_oom(&buf)) | |
cb8a7961 | 1052 | return -1; |
a67a096a | 1053 | |
662880ca RB |
1054 | /* don't write gitlink to natural workdir */ |
1055 | if (git__suffixcmp(to_repo, "/" DOT_GIT "/") == 0 && | |
1056 | strcmp(in_dir, buf.ptr) == 0) | |
1057 | { | |
1058 | error = GIT_PASSTHROUGH; | |
1059 | goto cleanup; | |
1060 | } | |
1061 | ||
1062 | if ((error = git_buf_joinpath(&buf, in_dir, DOT_GIT)) < 0) | |
1063 | goto cleanup; | |
1064 | ||
1065 | if (!p_stat(buf.ptr, &st) && !S_ISREG(st.st_mode)) { | |
1066 | giterr_set(GITERR_REPOSITORY, | |
1067 | "Cannot overwrite gitlink file into path '%s'", in_dir); | |
1068 | error = GIT_EEXISTS; | |
1069 | goto cleanup; | |
1070 | } | |
1071 | ||
1072 | git_buf_clear(&buf); | |
1073 | ||
1074 | error = git_buf_printf(&buf, "%s %s", GIT_FILE_CONTENT_PREFIX, to_repo); | |
1075 | ||
1076 | if (!error) | |
18f08264 | 1077 | error = repo_write_template(in_dir, true, DOT_GIT, 0666, true, buf.ptr); |
662880ca RB |
1078 | |
1079 | cleanup: | |
1080 | git_buf_free(&buf); | |
1081 | return error; | |
1082 | } | |
1083 | ||
ca1b6e54 RB |
1084 | static mode_t pick_dir_mode(git_repository_init_options *opts) |
1085 | { | |
1086 | if (opts->mode == GIT_REPOSITORY_INIT_SHARED_UMASK) | |
18f08264 | 1087 | return 0777; |
ca1b6e54 RB |
1088 | if (opts->mode == GIT_REPOSITORY_INIT_SHARED_GROUP) |
1089 | return (0775 | S_ISGID); | |
1090 | if (opts->mode == GIT_REPOSITORY_INIT_SHARED_ALL) | |
1091 | return (0777 | S_ISGID); | |
1092 | return opts->mode; | |
1093 | } | |
1094 | ||
662880ca RB |
1095 | #include "repo_template.h" |
1096 | ||
1097 | static int repo_init_structure( | |
1098 | const char *repo_dir, | |
1099 | const char *work_dir, | |
1100 | git_repository_init_options *opts) | |
1101 | { | |
ca1b6e54 | 1102 | int error = 0; |
662880ca | 1103 | repo_template_item *tpl; |
ca1b6e54 RB |
1104 | bool external_tpl = |
1105 | ((opts->flags & GIT_REPOSITORY_INIT_EXTERNAL_TEMPLATE) != 0); | |
1106 | mode_t dmode = pick_dir_mode(opts); | |
662880ca RB |
1107 | |
1108 | /* Hide the ".git" directory */ | |
17837602 | 1109 | #ifdef GIT_WIN32 |
2eb4edf5 | 1110 | if ((opts->flags & GIT_REPOSITORY_INIT__HAS_DOTGIT) != 0) { |
662880ca | 1111 | if (p_hide_directory__w32(repo_dir) < 0) { |
cb8a7961 VM |
1112 | giterr_set(GITERR_REPOSITORY, |
1113 | "Failed to mark Git repository folder as hidden"); | |
1114 | return -1; | |
1115 | } | |
17837602 | 1116 | } |
2eb4edf5 RB |
1117 | #endif |
1118 | ||
1119 | /* Create the .git gitlink if appropriate */ | |
1120 | if ((opts->flags & GIT_REPOSITORY_INIT_BARE) == 0 && | |
1121 | (opts->flags & GIT_REPOSITORY_INIT__NATURAL_WD) == 0) | |
1122 | { | |
662880ca | 1123 | if (repo_write_gitlink(work_dir, repo_dir) < 0) |
cb8a7961 | 1124 | return -1; |
97769280 | 1125 | } |
1c2c7c0d | 1126 | |
ca1b6e54 RB |
1127 | /* Copy external template if requested */ |
1128 | if (external_tpl) { | |
1129 | git_config *cfg; | |
1130 | const char *tdir; | |
662880ca | 1131 | |
ca1b6e54 RB |
1132 | if (opts->template_path) |
1133 | tdir = opts->template_path; | |
85bd1746 | 1134 | else if ((error = git_config_open_default(&cfg)) < 0) |
ca1b6e54 RB |
1135 | return error; |
1136 | else { | |
1137 | error = git_config_get_string(&tdir, cfg, "init.templatedir"); | |
662880ca | 1138 | |
ca1b6e54 | 1139 | git_config_free(cfg); |
662880ca | 1140 | |
ca1b6e54 RB |
1141 | if (error && error != GIT_ENOTFOUND) |
1142 | return error; | |
1143 | ||
1144 | giterr_clear(); | |
1145 | tdir = GIT_TEMPLATE_DIR; | |
662880ca | 1146 | } |
ca1b6e54 RB |
1147 | |
1148 | error = git_futils_cp_r(tdir, repo_dir, | |
18f08264 RB |
1149 | GIT_CPDIR_COPY_SYMLINKS | GIT_CPDIR_CHMOD_DIRS | |
1150 | GIT_CPDIR_SIMPLE_TO_MODE, dmode); | |
ca1b6e54 RB |
1151 | |
1152 | if (error < 0) { | |
1153 | if (strcmp(tdir, GIT_TEMPLATE_DIR) != 0) | |
1154 | return error; | |
1155 | ||
1156 | /* if template was default, ignore error and use internal */ | |
1157 | giterr_clear(); | |
1158 | external_tpl = false; | |
b7b1acfd | 1159 | error = 0; |
ca1b6e54 RB |
1160 | } |
1161 | } | |
1162 | ||
1163 | /* Copy internal template | |
1164 | * - always ensure existence of dirs | |
1165 | * - only create files if no external template was specified | |
1166 | */ | |
1167 | for (tpl = repo_template; !error && tpl->path; ++tpl) { | |
1168 | if (!tpl->content) | |
1169 | error = git_futils_mkdir( | |
1170 | tpl->path, repo_dir, dmode, GIT_MKDIR_PATH | GIT_MKDIR_CHMOD); | |
1171 | else if (!external_tpl) { | |
662880ca RB |
1172 | const char *content = tpl->content; |
1173 | ||
1174 | if (opts->description && strcmp(tpl->path, GIT_DESC_FILE) == 0) | |
1175 | content = opts->description; | |
1176 | ||
ca1b6e54 RB |
1177 | error = repo_write_template( |
1178 | repo_dir, false, tpl->path, tpl->mode, false, content); | |
662880ca | 1179 | } |
dc34da6e RB |
1180 | } |
1181 | ||
ca1b6e54 | 1182 | return error; |
4b8e27c8 | 1183 | } |
1184 | ||
3c42e4ef RB |
1185 | static int mkdir_parent(git_buf *buf, uint32_t mode, bool skip2) |
1186 | { | |
0d1b094b RB |
1187 | /* When making parent directories during repository initialization |
1188 | * don't try to set gid or grant world write access | |
1189 | */ | |
3c42e4ef | 1190 | return git_futils_mkdir( |
0d1b094b | 1191 | buf->ptr, NULL, mode & ~(S_ISGID | 0002), |
3c42e4ef RB |
1192 | GIT_MKDIR_PATH | GIT_MKDIR_VERIFY_DIR | |
1193 | (skip2 ? GIT_MKDIR_SKIP_LAST2 : GIT_MKDIR_SKIP_LAST)); | |
1194 | } | |
1195 | ||
662880ca RB |
1196 | static int repo_init_directories( |
1197 | git_buf *repo_path, | |
1198 | git_buf *wd_path, | |
1199 | const char *given_repo, | |
1200 | git_repository_init_options *opts) | |
4b8e27c8 | 1201 | { |
662880ca | 1202 | int error = 0; |
3c42e4ef | 1203 | bool is_bare, add_dotgit, has_dotgit, natural_wd; |
ca1b6e54 | 1204 | mode_t dirmode; |
932d1baf | 1205 | |
3c42e4ef RB |
1206 | /* There are three possible rules for what we are allowed to create: |
1207 | * - MKPATH means anything we need | |
1208 | * - MKDIR means just the .git directory and its parent and the workdir | |
1209 | * - Neither means only the .git directory can be created | |
1210 | * | |
1211 | * There are 5 "segments" of path that we might need to deal with: | |
1212 | * 1. The .git directory | |
1213 | * 2. The parent of the .git directory | |
1214 | * 3. Everything above the parent of the .git directory | |
1215 | * 4. The working directory (often the same as #2) | |
1216 | * 5. Everything above the working directory (often the same as #3) | |
1217 | * | |
1218 | * For all directories created, we start with the init_mode value for | |
1219 | * permissions and then strip off bits in some cases: | |
1220 | * | |
1221 | * For MKPATH, we create #3 (and #5) paths without S_ISGID or S_IWOTH | |
1222 | * For MKPATH and MKDIR, we create #2 (and #4) without S_ISGID | |
1223 | * For all rules, we create #1 using the untouched init_mode | |
1224 | */ | |
1225 | ||
662880ca | 1226 | /* set up repo path */ |
4b8e27c8 | 1227 | |
3c42e4ef RB |
1228 | is_bare = ((opts->flags & GIT_REPOSITORY_INIT_BARE) != 0); |
1229 | ||
662880ca RB |
1230 | add_dotgit = |
1231 | (opts->flags & GIT_REPOSITORY_INIT_NO_DOTGIT_DIR) == 0 && | |
3c42e4ef | 1232 | !is_bare && |
662880ca RB |
1233 | git__suffixcmp(given_repo, "/" DOT_GIT) != 0 && |
1234 | git__suffixcmp(given_repo, "/" GIT_DIR) != 0; | |
4b8e27c8 | 1235 | |
662880ca RB |
1236 | if (git_buf_joinpath(repo_path, given_repo, add_dotgit ? GIT_DIR : "") < 0) |
1237 | return -1; | |
693b23c0 | 1238 | |
662880ca RB |
1239 | has_dotgit = (git__suffixcmp(repo_path->ptr, "/" GIT_DIR) == 0); |
1240 | if (has_dotgit) | |
1241 | opts->flags |= GIT_REPOSITORY_INIT__HAS_DOTGIT; | |
1242 | ||
1243 | /* set up workdir path */ | |
1244 | ||
3c42e4ef | 1245 | if (!is_bare) { |
662880ca | 1246 | if (opts->workdir_path) { |
ca1b6e54 RB |
1247 | if (git_path_join_unrooted( |
1248 | wd_path, opts->workdir_path, repo_path->ptr, NULL) < 0) | |
1249 | return -1; | |
662880ca RB |
1250 | } else if (has_dotgit) { |
1251 | if (git_path_dirname_r(wd_path, repo_path->ptr) < 0) | |
1252 | return -1; | |
1253 | } else { | |
1254 | giterr_set(GITERR_REPOSITORY, "Cannot pick working directory" | |
1255 | " for non-bare repository that isn't a '.git' directory"); | |
1256 | return -1; | |
1257 | } | |
693b23c0 | 1258 | |
662880ca RB |
1259 | if (git_path_to_dir(wd_path) < 0) |
1260 | return -1; | |
1261 | } else { | |
1262 | git_buf_clear(wd_path); | |
1263 | } | |
1264 | ||
1265 | natural_wd = | |
1266 | has_dotgit && | |
1267 | wd_path->size > 0 && | |
1268 | wd_path->size + strlen(GIT_DIR) == repo_path->size && | |
1269 | memcmp(repo_path->ptr, wd_path->ptr, wd_path->size) == 0; | |
1270 | if (natural_wd) | |
1271 | opts->flags |= GIT_REPOSITORY_INIT__NATURAL_WD; | |
1272 | ||
662880ca RB |
1273 | /* create directories as needed / requested */ |
1274 | ||
ca1b6e54 | 1275 | dirmode = pick_dir_mode(opts); |
662880ca | 1276 | |
3c42e4ef RB |
1277 | if ((opts->flags & GIT_REPOSITORY_INIT_MKPATH) != 0) { |
1278 | /* create path #5 */ | |
1279 | if (wd_path->size > 0 && | |
1280 | (error = mkdir_parent(wd_path, dirmode, false)) < 0) | |
1281 | return error; | |
1282 | ||
1283 | /* create path #3 (if not the same as #5) */ | |
1284 | if (!natural_wd && | |
1285 | (error = mkdir_parent(repo_path, dirmode, has_dotgit)) < 0) | |
1286 | return error; | |
1287 | } | |
1288 | ||
1289 | if ((opts->flags & GIT_REPOSITORY_INIT_MKDIR) != 0 || | |
1290 | (opts->flags & GIT_REPOSITORY_INIT_MKPATH) != 0) | |
1291 | { | |
1292 | /* create path #4 */ | |
1293 | if (wd_path->size > 0 && | |
1294 | (error = git_futils_mkdir( | |
1295 | wd_path->ptr, NULL, dirmode & ~S_ISGID, | |
1296 | GIT_MKDIR_VERIFY_DIR)) < 0) | |
1297 | return error; | |
1298 | ||
1299 | /* create path #2 (if not the same as #4) */ | |
1300 | if (!natural_wd && | |
1301 | (error = git_futils_mkdir( | |
1302 | repo_path->ptr, NULL, dirmode & ~S_ISGID, | |
1303 | GIT_MKDIR_VERIFY_DIR | GIT_MKDIR_SKIP_LAST)) < 0) | |
1304 | return error; | |
662880ca | 1305 | } |
662880ca | 1306 | |
ca1b6e54 RB |
1307 | if ((opts->flags & GIT_REPOSITORY_INIT_MKDIR) != 0 || |
1308 | (opts->flags & GIT_REPOSITORY_INIT_MKPATH) != 0 || | |
1309 | has_dotgit) | |
1310 | { | |
3c42e4ef | 1311 | /* create path #1 */ |
18f08264 RB |
1312 | error = git_futils_mkdir(repo_path->ptr, NULL, dirmode, |
1313 | GIT_MKDIR_VERIFY_DIR | ((dirmode & S_ISGID) ? GIT_MKDIR_CHMOD : 0)); | |
662880ca | 1314 | } |
ca1b6e54 | 1315 | |
662880ca RB |
1316 | /* prettify both directories now that they are created */ |
1317 | ||
1318 | if (!error) { | |
1319 | error = git_path_prettify_dir(repo_path, repo_path->ptr, NULL); | |
1320 | ||
1321 | if (!error && wd_path->size > 0) | |
1322 | error = git_path_prettify_dir(wd_path, wd_path->ptr, NULL); | |
1323 | } | |
1324 | ||
1325 | return error; | |
1326 | } | |
1327 | ||
1328 | static int repo_init_create_origin(git_repository *repo, const char *url) | |
1329 | { | |
1330 | int error; | |
1331 | git_remote *remote; | |
1332 | ||
29f27599 | 1333 | if (!(error = git_remote_create(&remote, repo, GIT_REMOTE_ORIGIN, url))) { |
662880ca RB |
1334 | git_remote_free(remote); |
1335 | } | |
1336 | ||
1337 | return error; | |
1338 | } | |
1339 | ||
1340 | int git_repository_init( | |
1341 | git_repository **repo_out, const char *path, unsigned is_bare) | |
1342 | { | |
b4d13652 | 1343 | git_repository_init_options opts = GIT_REPOSITORY_INIT_OPTIONS_INIT; |
662880ca | 1344 | |
662880ca RB |
1345 | opts.flags = GIT_REPOSITORY_INIT_MKPATH; /* don't love this default */ |
1346 | if (is_bare) | |
1347 | opts.flags |= GIT_REPOSITORY_INIT_BARE; | |
1348 | ||
1349 | return git_repository_init_ext(repo_out, path, &opts); | |
1350 | } | |
1351 | ||
1352 | int git_repository_init_ext( | |
c9fc4a6f | 1353 | git_repository **out, |
662880ca RB |
1354 | const char *given_repo, |
1355 | git_repository_init_options *opts) | |
1356 | { | |
1357 | int error; | |
1358 | git_buf repo_path = GIT_BUF_INIT, wd_path = GIT_BUF_INIT; | |
1359 | ||
c9fc4a6f | 1360 | assert(out && given_repo && opts); |
662880ca | 1361 | |
c7231c45 | 1362 | GITERR_CHECK_VERSION(opts, GIT_REPOSITORY_INIT_OPTIONS_VERSION, "git_repository_init_options"); |
b4d13652 | 1363 | |
662880ca RB |
1364 | error = repo_init_directories(&repo_path, &wd_path, given_repo, opts); |
1365 | if (error < 0) | |
693b23c0 | 1366 | goto cleanup; |
662880ca RB |
1367 | |
1368 | if (valid_repository_path(&repo_path)) { | |
1369 | ||
1370 | if ((opts->flags & GIT_REPOSITORY_INIT_NO_REINIT) != 0) { | |
1371 | giterr_set(GITERR_REPOSITORY, | |
1372 | "Attempt to reinitialize '%s'", given_repo); | |
1373 | error = GIT_EEXISTS; | |
1374 | goto cleanup; | |
1375 | } | |
1376 | ||
1377 | opts->flags |= GIT_REPOSITORY_INIT__IS_REINIT; | |
1378 | ||
ca1b6e54 RB |
1379 | error = repo_init_config( |
1380 | git_buf_cstr(&repo_path), git_buf_cstr(&wd_path), opts); | |
662880ca RB |
1381 | |
1382 | /* TODO: reinitialize the templates */ | |
1383 | } | |
1384 | else { | |
1385 | if (!(error = repo_init_structure( | |
1386 | git_buf_cstr(&repo_path), git_buf_cstr(&wd_path), opts)) && | |
ca1b6e54 RB |
1387 | !(error = repo_init_config( |
1388 | git_buf_cstr(&repo_path), git_buf_cstr(&wd_path), opts))) | |
662880ca RB |
1389 | error = repo_init_create_head( |
1390 | git_buf_cstr(&repo_path), opts->initial_head); | |
cb8a7961 | 1391 | } |
662880ca RB |
1392 | if (error < 0) |
1393 | goto cleanup; | |
1394 | ||
c9fc4a6f | 1395 | error = git_repository_open(out, git_buf_cstr(&repo_path)); |
d2d6912e | 1396 | |
662880ca | 1397 | if (!error && opts->origin_url) |
c9fc4a6f | 1398 | error = repo_init_create_origin(*out, opts->origin_url); |
693b23c0 | 1399 | |
1400 | cleanup: | |
662880ca RB |
1401 | git_buf_free(&repo_path); |
1402 | git_buf_free(&wd_path); | |
1403 | ||
1404 | return error; | |
40c44d2f | 1405 | } |
35502d2e | 1406 | |
c682886e | 1407 | int git_repository_head_detached(git_repository *repo) |
35502d2e CMN |
1408 | { |
1409 | git_reference *ref; | |
9462c471 | 1410 | git_odb *odb = NULL; |
cb8a7961 | 1411 | int exists; |
9462c471 | 1412 | |
cb8a7961 VM |
1413 | if (git_repository_odb__weakptr(&odb, repo) < 0) |
1414 | return -1; | |
35502d2e | 1415 | |
cb8a7961 VM |
1416 | if (git_reference_lookup(&ref, repo, GIT_HEAD_FILE) < 0) |
1417 | return -1; | |
35502d2e | 1418 | |
75abd2b9 MS |
1419 | if (git_reference_type(ref) == GIT_REF_SYMBOLIC) { |
1420 | git_reference_free(ref); | |
35502d2e | 1421 | return 0; |
75abd2b9 | 1422 | } |
35502d2e | 1423 | |
2508cc66 | 1424 | exists = git_odb_exists(odb, git_reference_target(ref)); |
75abd2b9 MS |
1425 | |
1426 | git_reference_free(ref); | |
cb8a7961 | 1427 | return exists; |
35502d2e CMN |
1428 | } |
1429 | ||
3601c4bf | 1430 | int git_repository_head(git_reference **head_out, git_repository *repo) |
35502d2e | 1431 | { |
b1a3a70e | 1432 | git_reference *head; |
8b05bea8 | 1433 | int error; |
1434 | ||
b1a3a70e | 1435 | if ((error = git_reference_lookup(&head, repo, GIT_HEAD_FILE)) < 0) |
1436 | return error; | |
1437 | ||
1438 | if (git_reference_type(head) == GIT_REF_OID) { | |
1439 | *head_out = head; | |
1440 | return 0; | |
1441 | } | |
1442 | ||
2508cc66 | 1443 | error = git_reference_lookup_resolved(head_out, repo, git_reference_symbolic_target(head), -1); |
b1a3a70e | 1444 | git_reference_free(head); |
8b05bea8 | 1445 | |
1446 | return error == GIT_ENOTFOUND ? GIT_EORPHANEDHEAD : error; | |
3601c4bf | 1447 | } |
1448 | ||
1449 | int git_repository_head_orphan(git_repository *repo) | |
1450 | { | |
cb8a7961 | 1451 | git_reference *ref = NULL; |
3601c4bf | 1452 | int error; |
1453 | ||
1454 | error = git_repository_head(&ref, repo); | |
cb8a7961 | 1455 | git_reference_free(ref); |
35502d2e | 1456 | |
8b05bea8 | 1457 | if (error == GIT_EORPHANEDHEAD) |
cb8a7961 | 1458 | return 1; |
75abd2b9 | 1459 | |
cb8a7961 VM |
1460 | if (error < 0) |
1461 | return -1; | |
1462 | ||
1463 | return 0; | |
35502d2e | 1464 | } |
e0011be3 | 1465 | |
0066955d | 1466 | static int at_least_one_cb(const char *refname, void *payload) |
41233c40 | 1467 | { |
6091457e | 1468 | GIT_UNUSED(refname); |
1469 | GIT_UNUSED(payload); | |
41233c40 | 1470 | |
6091457e | 1471 | return GIT_EUSER; |
1472 | } | |
41233c40 | 1473 | |
6091457e | 1474 | static int repo_contains_no_reference(git_repository *repo) |
1475 | { | |
2b562c3a | 1476 | int error = git_reference_foreach(repo, at_least_one_cb, NULL); |
0f489fb2 | 1477 | |
6091457e | 1478 | if (error == GIT_EUSER) |
0f489fb2 | 1479 | return 0; |
e976b56d RB |
1480 | if (!error) |
1481 | return 1; | |
1482 | return error; | |
6091457e | 1483 | } |
75abd2b9 | 1484 | |
6091457e | 1485 | int git_repository_is_empty(git_repository *repo) |
1486 | { | |
1487 | git_reference *head = NULL; | |
0066955d | 1488 | int error; |
cb8a7961 | 1489 | |
6091457e | 1490 | if (git_reference_lookup(&head, repo, GIT_HEAD_FILE) < 0) |
cb8a7961 VM |
1491 | return -1; |
1492 | ||
6091457e | 1493 | if (!(error = git_reference_type(head) == GIT_REF_SYMBOLIC)) |
1494 | goto cleanup; | |
1495 | ||
1496 | if (!(error = strcmp( | |
2508cc66 | 1497 | git_reference_symbolic_target(head), |
6091457e | 1498 | GIT_REFS_HEADS_DIR "master") == 0)) |
1499 | goto cleanup; | |
1500 | ||
1501 | error = repo_contains_no_reference(repo); | |
1502 | ||
1503 | cleanup: | |
1504 | git_reference_free(head); | |
1505 | return error < 0 ? -1 : error; | |
41233c40 VM |
1506 | } |
1507 | ||
9462c471 | 1508 | const char *git_repository_path(git_repository *repo) |
4a34b3a9 | 1509 | { |
1510 | assert(repo); | |
9462c471 VM |
1511 | return repo->path_repository; |
1512 | } | |
4a34b3a9 | 1513 | |
9462c471 VM |
1514 | const char *git_repository_workdir(git_repository *repo) |
1515 | { | |
1516 | assert(repo); | |
602ee38b | 1517 | |
9462c471 VM |
1518 | if (repo->is_bare) |
1519 | return NULL; | |
602ee38b | 1520 | |
9462c471 VM |
1521 | return repo->workdir; |
1522 | } | |
602ee38b | 1523 | |
991a56c7 RB |
1524 | int git_repository_set_workdir( |
1525 | git_repository *repo, const char *workdir, int update_gitlink) | |
9462c471 | 1526 | { |
991a56c7 | 1527 | int error = 0; |
b78fb64d | 1528 | git_buf path = GIT_BUF_INIT; |
1529 | ||
9462c471 | 1530 | assert(repo && workdir); |
602ee38b | 1531 | |
b78fb64d | 1532 | if (git_path_prettify_dir(&path, workdir, NULL) < 0) |
1533 | return -1; | |
9462c471 | 1534 | |
991a56c7 RB |
1535 | if (repo->workdir && strcmp(repo->workdir, path.ptr) == 0) |
1536 | return 0; | |
9462c471 | 1537 | |
991a56c7 RB |
1538 | if (update_gitlink) { |
1539 | git_config *config; | |
1540 | ||
1541 | if (git_repository_config__weakptr(&config, repo) < 0) | |
1542 | return -1; | |
1543 | ||
662880ca | 1544 | error = repo_write_gitlink(path.ptr, git_repository_path(repo)); |
991a56c7 RB |
1545 | |
1546 | /* passthrough error means gitlink is unnecessary */ | |
1547 | if (error == GIT_PASSTHROUGH) | |
54b2a37a | 1548 | error = git_config_delete_entry(config, "core.worktree"); |
991a56c7 RB |
1549 | else if (!error) |
1550 | error = git_config_set_string(config, "core.worktree", path.ptr); | |
1551 | ||
1552 | if (!error) | |
1553 | error = git_config_set_bool(config, "core.bare", false); | |
1554 | } | |
1555 | ||
1556 | if (!error) { | |
1557 | char *old_workdir = repo->workdir; | |
1558 | ||
1559 | repo->workdir = git_buf_detach(&path); | |
1560 | repo->is_bare = 0; | |
1561 | ||
1562 | git__free(old_workdir); | |
1563 | } | |
1564 | ||
1565 | return error; | |
4a34b3a9 | 1566 | } |
fa9bcd81 | 1567 | |
1568 | int git_repository_is_bare(git_repository *repo) | |
1569 | { | |
1570 | assert(repo); | |
1571 | return repo->is_bare; | |
1572 | } | |
f917481e RB |
1573 | |
1574 | int git_repository_head_tree(git_tree **tree, git_repository *repo) | |
1575 | { | |
5cec896a | 1576 | git_reference *head; |
1577 | git_object *obj; | |
1578 | int error; | |
f917481e | 1579 | |
5cec896a | 1580 | if ((error = git_repository_head(&head, repo)) < 0) |
1581 | return error; | |
f917481e | 1582 | |
5cec896a | 1583 | if ((error = git_reference_peel(&obj, head, GIT_OBJ_TREE)) < 0) |
1584 | goto cleanup; | |
f917481e RB |
1585 | |
1586 | *tree = (git_tree *)obj; | |
5cec896a | 1587 | |
1588 | cleanup: | |
1589 | git_reference_free(head); | |
1590 | return error; | |
f917481e | 1591 | } |
074841ec | 1592 | |
074841ec CMN |
1593 | int git_repository_message(char *buffer, size_t len, git_repository *repo) |
1594 | { | |
0ac349a9 VM |
1595 | git_buf buf = GIT_BUF_INIT, path = GIT_BUF_INIT; |
1596 | struct stat st; | |
0ac349a9 | 1597 | int error; |
074841ec | 1598 | |
3d1c9f61 RB |
1599 | if (buffer != NULL) |
1600 | *buffer = '\0'; | |
1601 | ||
632d8b23 | 1602 | if (git_buf_joinpath(&path, repo->path_repository, GIT_MERGE_MSG_FILE) < 0) |
0ac349a9 | 1603 | return -1; |
074841ec | 1604 | |
e9ca852e | 1605 | if ((error = p_stat(git_buf_cstr(&path), &st)) < 0) { |
074841ec CMN |
1606 | if (errno == ENOENT) |
1607 | error = GIT_ENOTFOUND; | |
1a9e406c | 1608 | giterr_set(GITERR_OS, "Could not access message file"); |
0ac349a9 | 1609 | } |
e9ca852e RB |
1610 | else if (buffer != NULL) { |
1611 | error = git_futils_readbuffer(&buf, git_buf_cstr(&path)); | |
1612 | git_buf_copy_cstr(buffer, len, &buf); | |
0ac349a9 | 1613 | } |
074841ec | 1614 | |
0ac349a9 VM |
1615 | git_buf_free(&path); |
1616 | git_buf_free(&buf); | |
074841ec | 1617 | |
e9ca852e RB |
1618 | if (!error) |
1619 | error = (int)st.st_size + 1; /* add 1 for NUL byte */ | |
1620 | ||
1621 | return error; | |
074841ec CMN |
1622 | } |
1623 | ||
1624 | int git_repository_message_remove(git_repository *repo) | |
1625 | { | |
0ac349a9 VM |
1626 | git_buf path = GIT_BUF_INIT; |
1627 | int error; | |
074841ec | 1628 | |
632d8b23 | 1629 | if (git_buf_joinpath(&path, repo->path_repository, GIT_MERGE_MSG_FILE) < 0) |
0ac349a9 | 1630 | return -1; |
074841ec CMN |
1631 | |
1632 | error = p_unlink(git_buf_cstr(&path)); | |
1633 | git_buf_free(&path); | |
1634 | ||
1635 | return error; | |
1636 | } | |
47bfa0be RB |
1637 | |
1638 | int git_repository_hashfile( | |
0cb16fe9 L |
1639 | git_oid *out, |
1640 | git_repository *repo, | |
1641 | const char *path, | |
1642 | git_otype type, | |
1643 | const char *as_path) | |
47bfa0be RB |
1644 | { |
1645 | int error; | |
1646 | git_vector filters = GIT_VECTOR_INIT; | |
b1127a30 | 1647 | git_file fd = -1; |
47bfa0be RB |
1648 | git_off_t len; |
1649 | git_buf full_path = GIT_BUF_INIT; | |
1650 | ||
a13fb55a RB |
1651 | assert(out && path && repo); /* as_path can be NULL */ |
1652 | ||
1653 | /* At some point, it would be nice if repo could be NULL to just | |
1654 | * apply filter rules defined in system and global files, but for | |
1655 | * now that is not possible because git_filters_load() needs it. | |
1656 | */ | |
47bfa0be RB |
1657 | |
1658 | error = git_path_join_unrooted( | |
1659 | &full_path, path, repo ? git_repository_workdir(repo) : NULL, NULL); | |
1660 | if (error < 0) | |
1661 | return error; | |
1662 | ||
1663 | if (!as_path) | |
1664 | as_path = path; | |
1665 | ||
1666 | /* passing empty string for "as_path" indicated --no-filters */ | |
1667 | if (strlen(as_path) > 0) { | |
1668 | error = git_filters_load(&filters, repo, as_path, GIT_FILTER_TO_ODB); | |
1669 | if (error < 0) | |
1670 | return error; | |
1671 | } else { | |
1672 | error = 0; | |
1673 | } | |
1674 | ||
1675 | /* at this point, error is a count of the number of loaded filters */ | |
1676 | ||
1677 | fd = git_futils_open_ro(full_path.ptr); | |
1678 | if (fd < 0) { | |
1679 | error = fd; | |
1680 | goto cleanup; | |
1681 | } | |
1682 | ||
1683 | len = git_futils_filesize(fd); | |
1684 | if (len < 0) { | |
75050223 | 1685 | error = (int)len; |
47bfa0be RB |
1686 | goto cleanup; |
1687 | } | |
1688 | ||
1689 | if (!git__is_sizet(len)) { | |
1690 | giterr_set(GITERR_OS, "File size overflow for 32-bit systems"); | |
1691 | error = -1; | |
1692 | goto cleanup; | |
1693 | } | |
1694 | ||
75050223 | 1695 | error = git_odb__hashfd_filtered(out, fd, (size_t)len, type, &filters); |
47bfa0be RB |
1696 | |
1697 | cleanup: | |
b1127a30 SS |
1698 | if (fd >= 0) |
1699 | p_close(fd); | |
47bfa0be RB |
1700 | git_filters_free(&filters); |
1701 | git_buf_free(&full_path); | |
1702 | ||
1703 | return error; | |
1704 | } | |
1705 | ||
44af67a8 | 1706 | static bool looks_like_a_branch(const char *refname) |
1707 | { | |
1708 | return git__prefixcmp(refname, GIT_REFS_HEADS_DIR) == 0; | |
1709 | } | |
1710 | ||
1711 | int git_repository_set_head( | |
1712 | git_repository* repo, | |
1713 | const char* refname) | |
1714 | { | |
1715 | git_reference *ref, | |
1716 | *new_head = NULL; | |
1717 | int error; | |
1718 | ||
1719 | assert(repo && refname); | |
1720 | ||
1721 | error = git_reference_lookup(&ref, repo, refname); | |
1722 | if (error < 0 && error != GIT_ENOTFOUND) | |
1723 | return error; | |
1724 | ||
1725 | if (!error) { | |
1726 | if (git_reference_is_branch(ref)) | |
2508cc66 | 1727 | error = git_reference_symbolic_create(&new_head, repo, GIT_HEAD_FILE, git_reference_name(ref), 1); |
44af67a8 | 1728 | else |
2508cc66 | 1729 | error = git_repository_set_head_detached(repo, git_reference_target(ref)); |
44af67a8 | 1730 | } else if (looks_like_a_branch(refname)) |
2508cc66 | 1731 | error = git_reference_symbolic_create(&new_head, repo, GIT_HEAD_FILE, refname, 1); |
44af67a8 | 1732 | |
1733 | git_reference_free(ref); | |
1734 | git_reference_free(new_head); | |
1735 | return error; | |
1736 | } | |
1737 | ||
4ebe38bd | 1738 | int git_repository_set_head_detached( |
1739 | git_repository* repo, | |
1740 | const git_oid* commitish) | |
1741 | { | |
1742 | int error; | |
1743 | git_object *object, | |
1744 | *peeled = NULL; | |
1745 | git_reference *new_head = NULL; | |
1746 | ||
1747 | assert(repo && commitish); | |
1748 | ||
1749 | if ((error = git_object_lookup(&object, repo, commitish, GIT_OBJ_ANY)) < 0) | |
1750 | return error; | |
1751 | ||
1752 | if ((error = git_object_peel(&peeled, object, GIT_OBJ_COMMIT)) < 0) | |
1753 | goto cleanup; | |
1754 | ||
2508cc66 | 1755 | error = git_reference_create(&new_head, repo, GIT_HEAD_FILE, git_object_id(peeled), 1); |
4ebe38bd | 1756 | |
1757 | cleanup: | |
1758 | git_object_free(object); | |
1759 | git_object_free(peeled); | |
1760 | git_reference_free(new_head); | |
1761 | return error; | |
1762 | } | |
1763 | ||
3f4c3072 | 1764 | int git_repository_detach_head( |
1765 | git_repository* repo) | |
1766 | { | |
1767 | git_reference *old_head = NULL, | |
1768 | *new_head = NULL; | |
1769 | git_object *object = NULL; | |
8b05bea8 | 1770 | int error; |
3f4c3072 | 1771 | |
1772 | assert(repo); | |
1773 | ||
8b05bea8 | 1774 | if ((error = git_repository_head(&old_head, repo)) < 0) |
1775 | return error; | |
3f4c3072 | 1776 | |
2508cc66 | 1777 | if ((error = git_object_lookup(&object, repo, git_reference_target(old_head), GIT_OBJ_COMMIT)) < 0) |
3f4c3072 | 1778 | goto cleanup; |
1779 | ||
2508cc66 | 1780 | error = git_reference_create(&new_head, repo, GIT_HEAD_FILE, git_reference_target(old_head), 1); |
3f4c3072 | 1781 | |
1782 | cleanup: | |
1783 | git_object_free(object); | |
1784 | git_reference_free(old_head); | |
1785 | git_reference_free(new_head); | |
1786 | return error; | |
1787 | } | |
632d8b23 | 1788 | |
31966d20 | 1789 | /** |
1790 | * Loosely ported from git.git | |
1791 | * https://github.com/git/git/blob/master/contrib/completion/git-prompt.sh#L198-289 | |
1792 | */ | |
632d8b23 ET |
1793 | int git_repository_state(git_repository *repo) |
1794 | { | |
1795 | git_buf repo_path = GIT_BUF_INIT; | |
1796 | int state = GIT_REPOSITORY_STATE_NONE; | |
1797 | ||
1798 | assert(repo); | |
1799 | ||
1800 | if (git_buf_puts(&repo_path, repo->path_repository) < 0) | |
1801 | return -1; | |
1802 | ||
31966d20 | 1803 | if (git_path_contains_file(&repo_path, GIT_REBASE_MERGE_INTERACTIVE_FILE)) |
1804 | state = GIT_REPOSITORY_STATE_REBASE_INTERACTIVE; | |
1805 | else if (git_path_contains_dir(&repo_path, GIT_REBASE_MERGE_DIR)) | |
1806 | state = GIT_REPOSITORY_STATE_REBASE_MERGE; | |
1807 | else if (git_path_contains_file(&repo_path, GIT_REBASE_APPLY_REBASING_FILE)) | |
1808 | state = GIT_REPOSITORY_STATE_REBASE; | |
1809 | else if (git_path_contains_file(&repo_path, GIT_REBASE_APPLY_APPLYING_FILE)) | |
1810 | state = GIT_REPOSITORY_STATE_APPLY_MAILBOX; | |
1811 | else if (git_path_contains_dir(&repo_path, GIT_REBASE_APPLY_DIR)) | |
1812 | state = GIT_REPOSITORY_STATE_APPLY_MAILBOX_OR_REBASE; | |
1813 | else if (git_path_contains_file(&repo_path, GIT_MERGE_HEAD_FILE)) | |
632d8b23 ET |
1814 | state = GIT_REPOSITORY_STATE_MERGE; |
1815 | else if(git_path_contains_file(&repo_path, GIT_REVERT_HEAD_FILE)) | |
1816 | state = GIT_REPOSITORY_STATE_REVERT; | |
1817 | else if(git_path_contains_file(&repo_path, GIT_CHERRY_PICK_HEAD_FILE)) | |
1818 | state = GIT_REPOSITORY_STATE_CHERRY_PICK; | |
31966d20 | 1819 | else if(git_path_contains_file(&repo_path, GIT_BISECT_LOG_FILE)) |
1820 | state = GIT_REPOSITORY_STATE_BISECT; | |
632d8b23 ET |
1821 | |
1822 | git_buf_free(&repo_path); | |
1823 | return state; | |
1824 | } | |
93d8f77f BS |
1825 | |
1826 | int git_repository_is_shallow(git_repository *repo) | |
1827 | { | |
1828 | git_buf path = GIT_BUF_INIT; | |
1829 | struct stat st; | |
6f0b8142 | 1830 | int error; |
93d8f77f BS |
1831 | |
1832 | git_buf_joinpath(&path, repo->path_repository, "shallow"); | |
6f0b8142 BS |
1833 | error = git_path_lstat(path.ptr, &st); |
1834 | git_buf_free(&path); | |
93d8f77f | 1835 | |
6f0b8142 | 1836 | if (error == GIT_ENOTFOUND) |
93d8f77f | 1837 | return 0; |
6f0b8142 BS |
1838 | if (error < 0) |
1839 | return -1; | |
93d8f77f BS |
1840 | return st.st_size == 0 ? 0 : 1; |
1841 | } |