2 3b339b2f 2018-02-12 stsp * Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
4 7b19e0f1 2017-11-05 stsp * Permission to use, copy, modify, and distribute this software for any
5 7b19e0f1 2017-11-05 stsp * purpose with or without fee is hereby granted, provided that the above
6 7b19e0f1 2017-11-05 stsp * copyright notice and this permission notice appear in all copies.
8 7b19e0f1 2017-11-05 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 7b19e0f1 2017-11-05 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 7b19e0f1 2017-11-05 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 7b19e0f1 2017-11-05 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 7b19e0f1 2017-11-05 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 7b19e0f1 2017-11-05 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 7b19e0f1 2017-11-05 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 ad242220 2018-09-08 stsp #include <sys/types.h>
18 79b11c62 2018-03-09 stsp #include <sys/queue.h>
19 ad242220 2018-09-08 stsp #include <sys/uio.h>
20 deeca238 2018-03-12 stsp #include <sys/stat.h>
21 1510f469 2018-09-09 stsp #include <sys/mman.h>
22 876c234b 2018-09-10 stsp #include <sys/syslimits.h>
24 1510f469 2018-09-09 stsp #include <fcntl.h>
25 4027f31a 2017-11-04 stsp #include <limits.h>
26 1510f469 2018-09-09 stsp #include <dirent.h>
27 4027f31a 2017-11-04 stsp #include <stdlib.h>
28 4027f31a 2017-11-04 stsp #include <stdio.h>
29 4027f31a 2017-11-04 stsp #include <sha1.h>
30 4027f31a 2017-11-04 stsp #include <string.h>
31 79b11c62 2018-03-09 stsp #include <zlib.h>
32 85f51bba 2018-07-16 stsp #include <errno.h>
33 85f51bba 2018-07-16 stsp #include <libgen.h>
34 ad242220 2018-09-08 stsp #include <stdint.h>
35 ad242220 2018-09-08 stsp #include <imsg.h>
37 4027f31a 2017-11-04 stsp #include "got_error.h"
38 5261c201 2018-04-01 stsp #include "got_reference.h"
39 4027f31a 2017-11-04 stsp #include "got_repository.h"
40 442a3ddc 2018-04-23 stsp #include "got_worktree.h"
41 7bb0daa1 2018-06-21 stsp #include "got_object.h"
43 718b3ab0 2018-03-17 stsp #include "got_lib_path.h"
44 718b3ab0 2018-03-17 stsp #include "got_lib_delta.h"
45 63581804 2018-07-09 stsp #include "got_lib_inflate.h"
46 718b3ab0 2018-03-17 stsp #include "got_lib_object.h"
47 718b3ab0 2018-03-17 stsp #include "got_lib_pack.h"
48 876c234b 2018-09-10 stsp #include "got_lib_privsep.h"
49 442a3ddc 2018-04-23 stsp #include "got_lib_worktree.h"
50 6bef87be 2018-09-11 stsp #include "got_lib_object_cache.h"
51 6bef87be 2018-09-11 stsp #include "got_lib_repository.h"
53 79b11c62 2018-03-09 stsp #ifndef nitems
54 79b11c62 2018-03-09 stsp #define nitems(_a) (sizeof(_a) / sizeof((_a)[0]))
57 4027f31a 2017-11-04 stsp #define GOT_GIT_DIR ".git"
59 4027f31a 2017-11-04 stsp /* Mandatory files and directories inside the git directory. */
60 4df642d9 2017-11-05 stsp #define GOT_OBJECTS_DIR "objects"
61 4df642d9 2017-11-05 stsp #define GOT_REFS_DIR "refs"
62 4df642d9 2017-11-05 stsp #define GOT_HEAD_FILE "HEAD"
64 a1fd68d8 2018-01-12 stsp /* Other files and directories inside the git directory. */
65 4df642d9 2017-11-05 stsp #define GOT_FETCH_HEAD_FILE "FETCH_HEAD"
66 4df642d9 2017-11-05 stsp #define GOT_ORIG_HEAD_FILE "ORIG_HEAD"
67 a1fd68d8 2018-01-12 stsp #define GOT_OBJECTS_PACK_DIR "objects/pack"
70 86c3caaf 2018-03-09 stsp got_repo_get_path(struct got_repository *repo)
72 86c3caaf 2018-03-09 stsp return strdup(repo->path);
76 11995603 2017-11-05 stsp got_repo_get_path_git_dir(struct got_repository *repo)
78 4986b9d5 2018-03-12 stsp return strdup(repo->path_git_dir);
82 04ca23f4 2018-07-16 stsp got_repo_is_bare(struct got_repository *repo)
84 04ca23f4 2018-07-16 stsp return (strcmp(repo->path, repo->path_git_dir) == 0);
87 4027f31a 2017-11-04 stsp static char *
88 4027f31a 2017-11-04 stsp get_path_git_child(struct got_repository *repo, const char *basename)
90 4027f31a 2017-11-04 stsp char *path_child;
92 4986b9d5 2018-03-12 stsp if (asprintf(&path_child, "%s/%s", repo->path_git_dir,
93 4027f31a 2017-11-04 stsp basename) == -1)
94 4027f31a 2017-11-04 stsp return NULL;
96 4027f31a 2017-11-04 stsp return path_child;
100 11995603 2017-11-05 stsp got_repo_get_path_objects(struct got_repository *repo)
102 4027f31a 2017-11-04 stsp return get_path_git_child(repo, GOT_OBJECTS_DIR);
106 a1fd68d8 2018-01-12 stsp got_repo_get_path_objects_pack(struct got_repository *repo)
108 a1fd68d8 2018-01-12 stsp return get_path_git_child(repo, GOT_OBJECTS_PACK_DIR);
112 11995603 2017-11-05 stsp got_repo_get_path_refs(struct got_repository *repo)
114 4027f31a 2017-11-04 stsp return get_path_git_child(repo, GOT_REFS_DIR);
117 4027f31a 2017-11-04 stsp static char *
118 4027f31a 2017-11-04 stsp get_path_head(struct got_repository *repo)
120 4027f31a 2017-11-04 stsp return get_path_git_child(repo, GOT_HEAD_FILE);
124 4027f31a 2017-11-04 stsp is_git_repo(struct got_repository *repo)
126 11995603 2017-11-05 stsp char *path_git = got_repo_get_path_git_dir(repo);
127 11995603 2017-11-05 stsp char *path_objects = got_repo_get_path_objects(repo);
128 11995603 2017-11-05 stsp char *path_refs = got_repo_get_path_refs(repo);
129 4027f31a 2017-11-04 stsp char *path_head = get_path_head(repo);
130 deeca238 2018-03-12 stsp int ret = 0;
131 deeca238 2018-03-12 stsp struct stat sb;
132 4847cca1 2018-03-12 stsp struct got_reference *head_ref;
134 deeca238 2018-03-12 stsp if (lstat(path_git, &sb) == -1)
136 deeca238 2018-03-12 stsp if (!S_ISDIR(sb.st_mode))
139 deeca238 2018-03-12 stsp if (lstat(path_objects, &sb) == -1)
141 deeca238 2018-03-12 stsp if (!S_ISDIR(sb.st_mode))
144 deeca238 2018-03-12 stsp if (lstat(path_refs, &sb) == -1)
146 deeca238 2018-03-12 stsp if (!S_ISDIR(sb.st_mode))
149 deeca238 2018-03-12 stsp if (lstat(path_head, &sb) == -1)
151 deeca238 2018-03-12 stsp if (!S_ISREG(sb.st_mode))
154 4847cca1 2018-03-12 stsp /* Check if the HEAD reference can be opened. */
155 4847cca1 2018-03-12 stsp if (got_ref_open(&head_ref, repo, GOT_REF_HEAD) != NULL)
157 4847cca1 2018-03-12 stsp got_ref_close(head_ref);
161 4027f31a 2017-11-04 stsp free(path_git);
162 4027f31a 2017-11-04 stsp free(path_objects);
163 4027f31a 2017-11-04 stsp free(path_refs);
164 4027f31a 2017-11-04 stsp free(path_head);
165 4027f31a 2017-11-04 stsp return ret;
169 f6be5c30 2018-06-22 stsp const struct got_error *
170 f6be5c30 2018-06-22 stsp got_repo_cache_object(struct got_repository *repo, struct got_object_id *id,
171 f6be5c30 2018-06-22 stsp struct got_object *obj)
173 ccfe88e6 2018-07-12 stsp #ifndef GOT_NO_OBJ_CACHE
174 f6be5c30 2018-06-22 stsp const struct got_error *err = NULL;
175 6bef87be 2018-09-11 stsp err = got_object_cache_add(&repo->objcache, id, obj);
177 f6be5c30 2018-06-22 stsp return err;
178 f6be5c30 2018-06-22 stsp obj->refcnt++;
180 f6be5c30 2018-06-22 stsp return NULL;
183 7bb0daa1 2018-06-21 stsp struct got_object *
184 7bb0daa1 2018-06-21 stsp got_repo_get_cached_object(struct got_repository *repo,
185 7bb0daa1 2018-06-21 stsp struct got_object_id *id)
187 6bef87be 2018-09-11 stsp return (struct got_object *)got_object_cache_get(&repo->objcache, id);
190 4027f31a 2017-11-04 stsp const struct got_error *
191 f6be5c30 2018-06-22 stsp got_repo_cache_tree(struct got_repository *repo, struct got_object_id *id,
192 f6be5c30 2018-06-22 stsp struct got_tree_object *tree)
194 ccfe88e6 2018-07-12 stsp #ifndef GOT_NO_OBJ_CACHE
195 f6be5c30 2018-06-22 stsp const struct got_error *err = NULL;
196 6bef87be 2018-09-11 stsp err = got_object_cache_add(&repo->treecache, id, tree);
198 f6be5c30 2018-06-22 stsp return err;
199 f6be5c30 2018-06-22 stsp tree->refcnt++;
201 f6be5c30 2018-06-22 stsp return NULL;
204 f6be5c30 2018-06-22 stsp struct got_tree_object *
205 f6be5c30 2018-06-22 stsp got_repo_get_cached_tree(struct got_repository *repo,
206 f6be5c30 2018-06-22 stsp struct got_object_id *id)
208 6bef87be 2018-09-11 stsp return (struct got_tree_object *)got_object_cache_get(
209 6bef87be 2018-09-11 stsp &repo->treecache, id);
212 1943de01 2018-06-22 stsp const struct got_error *
213 1943de01 2018-06-22 stsp got_repo_cache_commit(struct got_repository *repo, struct got_object_id *id,
214 1943de01 2018-06-22 stsp struct got_commit_object *commit)
216 ccfe88e6 2018-07-12 stsp #ifndef GOT_NO_OBJ_CACHE
217 1943de01 2018-06-22 stsp const struct got_error *err = NULL;
218 6bef87be 2018-09-11 stsp err = got_object_cache_add(&repo->commitcache, id, commit);
220 1943de01 2018-06-22 stsp return err;
221 1943de01 2018-06-22 stsp commit->refcnt++;
223 f6be5c30 2018-06-22 stsp return NULL;
226 1943de01 2018-06-22 stsp struct got_commit_object *
227 1943de01 2018-06-22 stsp got_repo_get_cached_commit(struct got_repository *repo,
228 1943de01 2018-06-22 stsp struct got_object_id *id)
230 6bef87be 2018-09-11 stsp return (struct got_commit_object *)got_object_cache_get(
231 6bef87be 2018-09-11 stsp &repo->commitcache, id);
234 f6be5c30 2018-06-22 stsp const struct got_error *
235 85f51bba 2018-07-16 stsp open_repo(struct got_repository *repo, const char *path)
237 85f51bba 2018-07-16 stsp const struct got_error *err = NULL;
238 85f51bba 2018-07-16 stsp struct got_worktree *worktree = NULL;
240 85f51bba 2018-07-16 stsp /* bare git repository? */
241 85f51bba 2018-07-16 stsp repo->path_git_dir = strdup(path);
242 85f51bba 2018-07-16 stsp if (repo->path_git_dir == NULL) {
243 85f51bba 2018-07-16 stsp err = got_error_from_errno();
246 85f51bba 2018-07-16 stsp if (is_git_repo(repo)) {
247 85f51bba 2018-07-16 stsp repo->path = strdup(repo->path_git_dir);
248 85f51bba 2018-07-16 stsp if (repo->path == NULL) {
249 85f51bba 2018-07-16 stsp err = got_error_from_errno();
252 85f51bba 2018-07-16 stsp return NULL;
255 85f51bba 2018-07-16 stsp /* git repository with working tree? */
256 85f51bba 2018-07-16 stsp free(repo->path_git_dir);
257 85f51bba 2018-07-16 stsp if (asprintf(&repo->path_git_dir, "%s/%s", path, GOT_GIT_DIR) == -1) {
258 85f51bba 2018-07-16 stsp err = got_error_from_errno();
261 85f51bba 2018-07-16 stsp if (is_git_repo(repo)) {
262 85f51bba 2018-07-16 stsp repo->path = strdup(path);
263 85f51bba 2018-07-16 stsp if (repo->path == NULL) {
264 85f51bba 2018-07-16 stsp err = got_error_from_errno();
267 85f51bba 2018-07-16 stsp return NULL;
270 85f51bba 2018-07-16 stsp /* got work tree checked out from bare git repository? */
271 85f51bba 2018-07-16 stsp free(repo->path_git_dir);
272 85f51bba 2018-07-16 stsp repo->path_git_dir = NULL;
273 85f51bba 2018-07-16 stsp err = got_worktree_open(&worktree, path);
275 85f51bba 2018-07-16 stsp if (err->code == GOT_ERR_ERRNO && errno == ENOENT)
276 85f51bba 2018-07-16 stsp err = got_error(GOT_ERR_NOT_GIT_REPO);
279 85f51bba 2018-07-16 stsp repo->path_git_dir = strdup(worktree->repo_path);
280 85f51bba 2018-07-16 stsp if (repo->path_git_dir == NULL) {
281 85f51bba 2018-07-16 stsp err = got_error_from_errno();
285 85f51bba 2018-07-16 stsp /* got work tree checked out from git repository with working tree? */
286 85f51bba 2018-07-16 stsp if (!is_git_repo(repo)) {
287 85f51bba 2018-07-16 stsp free(repo->path_git_dir);
288 85f51bba 2018-07-16 stsp if (asprintf(&repo->path_git_dir, "%s/%s", worktree->repo_path,
289 85f51bba 2018-07-16 stsp GOT_GIT_DIR) == -1) {
290 85f51bba 2018-07-16 stsp err = got_error_from_errno();
291 85f51bba 2018-07-16 stsp repo->path_git_dir = NULL;
294 85f51bba 2018-07-16 stsp if (!is_git_repo(repo)) {
295 85f51bba 2018-07-16 stsp err = got_error(GOT_ERR_NOT_GIT_REPO);
298 85f51bba 2018-07-16 stsp repo->path = strdup(worktree->repo_path);
299 85f51bba 2018-07-16 stsp if (repo->path == NULL) {
300 85f51bba 2018-07-16 stsp err = got_error_from_errno();
304 85f51bba 2018-07-16 stsp repo->path = strdup(repo->path_git_dir);
305 85f51bba 2018-07-16 stsp if (repo->path == NULL) {
306 85f51bba 2018-07-16 stsp err = got_error_from_errno();
311 85f51bba 2018-07-16 stsp if (worktree)
312 85f51bba 2018-07-16 stsp got_worktree_close(worktree);
313 85f51bba 2018-07-16 stsp return err;
316 85f51bba 2018-07-16 stsp const struct got_error *
317 85f51bba 2018-07-16 stsp got_repo_open(struct got_repository **repop, const char *path)
319 92af5469 2017-11-05 stsp struct got_repository *repo = NULL;
320 92af5469 2017-11-05 stsp const struct got_error *err = NULL;
321 85f51bba 2018-07-16 stsp char *abspath, *normpath = NULL;
322 ad242220 2018-09-08 stsp int i, tried_root = 0;
324 85f51bba 2018-07-16 stsp *repop = NULL;
326 2393f13b 2018-03-09 stsp if (got_path_is_absolute(path))
327 2393f13b 2018-03-09 stsp abspath = strdup(path);
329 2393f13b 2018-03-09 stsp abspath = got_path_get_absolute(path);
330 92af5469 2017-11-05 stsp if (abspath == NULL)
331 92af5469 2017-11-05 stsp return got_error(GOT_ERR_BAD_PATH);
333 4027f31a 2017-11-04 stsp repo = calloc(1, sizeof(*repo));
334 92af5469 2017-11-05 stsp if (repo == NULL) {
335 0a585a0d 2018-03-17 stsp err = got_error_from_errno();
339 ad242220 2018-09-08 stsp for (i = 0; i < nitems(repo->privsep_children); i++) {
340 3516b818 2018-09-08 stsp memset(&repo->privsep_children[i], 0,
341 3516b818 2018-09-08 stsp sizeof(repo->privsep_children[0]));
342 ad242220 2018-09-08 stsp repo->privsep_children[i].imsg_fd = -1;
345 6bef87be 2018-09-11 stsp err = got_object_cache_init(&repo->objcache,
346 6bef87be 2018-09-11 stsp GOT_OBJECT_CACHE_TYPE_OBJ);
349 6bef87be 2018-09-11 stsp err = got_object_cache_init(&repo->treecache,
350 6bef87be 2018-09-11 stsp GOT_OBJECT_CACHE_TYPE_TREE);
353 6bef87be 2018-09-11 stsp err = got_object_cache_init(&repo->commitcache,
354 6bef87be 2018-09-11 stsp GOT_OBJECT_CACHE_TYPE_COMMIT);
358 85f51bba 2018-07-16 stsp normpath = got_path_normalize(abspath);
359 85f51bba 2018-07-16 stsp if (normpath == NULL) {
360 92af5469 2017-11-05 stsp err = got_error(GOT_ERR_BAD_PATH);
364 85f51bba 2018-07-16 stsp path = normpath;
366 85f51bba 2018-07-16 stsp err = open_repo(repo, path);
367 85f51bba 2018-07-16 stsp if (err == NULL)
369 85f51bba 2018-07-16 stsp if (err->code != GOT_ERR_NOT_GIT_REPO)
371 85f51bba 2018-07-16 stsp if (path[0] == '/' && path[1] == '\0') {
372 85f51bba 2018-07-16 stsp if (tried_root) {
373 85f51bba 2018-07-16 stsp err = got_error(GOT_ERR_NOT_GIT_REPO);
376 85f51bba 2018-07-16 stsp tried_root = 1;
378 85f51bba 2018-07-16 stsp path = dirname(path);
379 85f51bba 2018-07-16 stsp if (path == NULL)
380 85f51bba 2018-07-16 stsp err = got_error_from_errno();
381 85f51bba 2018-07-16 stsp } while (path);
384 5c2f5761 2018-09-19 stsp got_repo_close(repo);
386 85f51bba 2018-07-16 stsp *repop = repo;
387 92af5469 2017-11-05 stsp free(abspath);
388 85f51bba 2018-07-16 stsp free(normpath);
389 92af5469 2017-11-05 stsp return err;
392 ad242220 2018-09-08 stsp const struct got_error *
393 4027f31a 2017-11-04 stsp got_repo_close(struct got_repository *repo)
395 ad242220 2018-09-08 stsp const struct got_error *err = NULL, *child_err;
398 65cf1e80 2018-03-16 stsp for (i = 0; i < nitems(repo->packidx_cache); i++) {
399 65cf1e80 2018-03-16 stsp if (repo->packidx_cache[i] == NULL)
401 65cf1e80 2018-03-16 stsp got_packidx_close(repo->packidx_cache[i]);
404 7e656b93 2018-03-17 stsp for (i = 0; i < nitems(repo->packs); i++) {
405 7e656b93 2018-03-17 stsp if (repo->packs[i].path_packfile == NULL)
407 7e656b93 2018-03-17 stsp got_pack_close(&repo->packs[i]);
410 4027f31a 2017-11-04 stsp free(repo->path);
411 4986b9d5 2018-03-12 stsp free(repo->path_git_dir);
413 6bef87be 2018-09-11 stsp got_object_cache_close(&repo->objcache);
414 6bef87be 2018-09-11 stsp got_object_cache_close(&repo->treecache);
415 6bef87be 2018-09-11 stsp got_object_cache_close(&repo->commitcache);
417 ad242220 2018-09-08 stsp for (i = 0; i < nitems(repo->privsep_children); i++) {
418 ad242220 2018-09-08 stsp if (repo->privsep_children[i].imsg_fd == -1)
420 3516b818 2018-09-08 stsp imsg_clear(repo->privsep_children[i].ibuf);
421 3516b818 2018-09-08 stsp free(repo->privsep_children[i].ibuf);
422 ad242220 2018-09-08 stsp err = got_privsep_send_stop(repo->privsep_children[i].imsg_fd);
423 876c234b 2018-09-10 stsp child_err = got_privsep_wait_for_child(
424 876c234b 2018-09-10 stsp repo->privsep_children[i].pid);
425 ad242220 2018-09-08 stsp if (child_err && err == NULL)
426 ad242220 2018-09-08 stsp err = child_err;
427 ad242220 2018-09-08 stsp close(repo->privsep_children[i].imsg_fd);
429 4027f31a 2017-11-04 stsp free(repo);
431 ad242220 2018-09-08 stsp return err;
434 04ca23f4 2018-07-16 stsp const struct got_error *
435 04ca23f4 2018-07-16 stsp got_repo_map_path(char **in_repo_path, struct got_repository *repo,
436 23721109 2018-10-22 stsp const char *input_path, int check_disk)
438 04ca23f4 2018-07-16 stsp const struct got_error *err = NULL;
439 04ca23f4 2018-07-16 stsp char *repo_abspath = NULL, *cwd = NULL;
440 04ca23f4 2018-07-16 stsp struct stat sb;
441 04ca23f4 2018-07-16 stsp size_t repolen, cwdlen, len;
442 23721109 2018-10-22 stsp char *canonpath, *path = NULL;
444 04ca23f4 2018-07-16 stsp *in_repo_path = NULL;
446 04ca23f4 2018-07-16 stsp cwd = getcwd(NULL, 0);
447 04ca23f4 2018-07-16 stsp if (cwd == NULL)
448 04ca23f4 2018-07-16 stsp return got_error_from_errno();
450 04ca23f4 2018-07-16 stsp canonpath = strdup(input_path);
451 04ca23f4 2018-07-16 stsp if (canonpath == NULL) {
452 04ca23f4 2018-07-16 stsp err = got_error_from_errno();
455 04ca23f4 2018-07-16 stsp err = got_canonpath(input_path, canonpath, strlen(canonpath) + 1);
459 04ca23f4 2018-07-16 stsp repo_abspath = got_repo_get_path(repo);
460 04ca23f4 2018-07-16 stsp if (repo_abspath == NULL) {
461 04ca23f4 2018-07-16 stsp err = got_error_from_errno();
465 04ca23f4 2018-07-16 stsp /* TODO: Call "get in-repository path of work-tree node" API. */
467 23721109 2018-10-22 stsp if (!check_disk)
468 23721109 2018-10-22 stsp path = strdup(canonpath);
469 23721109 2018-10-22 stsp else if (lstat(canonpath, &sb) != 0) {
470 04ca23f4 2018-07-16 stsp if (errno != ENOENT) {
471 04ca23f4 2018-07-16 stsp err = got_error_from_errno();
475 04ca23f4 2018-07-16 stsp * Path is not on disk.
476 04ca23f4 2018-07-16 stsp * Assume it is already relative to repository root.
478 04ca23f4 2018-07-16 stsp path = strdup(canonpath);
480 04ca23f4 2018-07-16 stsp int is_repo_child = 0, is_cwd_child = 0;
482 04ca23f4 2018-07-16 stsp path = realpath(canonpath, NULL);
483 04ca23f4 2018-07-16 stsp if (path == NULL) {
484 04ca23f4 2018-07-16 stsp err = got_error_from_errno();
488 04ca23f4 2018-07-16 stsp repolen = strlen(repo_abspath);
489 04ca23f4 2018-07-16 stsp cwdlen = strlen(cwd);
490 04ca23f4 2018-07-16 stsp len = strlen(path);
492 04ca23f4 2018-07-16 stsp if (len > repolen && strncmp(path, repo_abspath, repolen) == 0)
493 04ca23f4 2018-07-16 stsp is_repo_child = 1;
494 04ca23f4 2018-07-16 stsp if (len > cwdlen && strncmp(path, cwd, cwdlen) == 0)
495 04ca23f4 2018-07-16 stsp is_cwd_child = 1;
497 04ca23f4 2018-07-16 stsp if (strcmp(path, repo_abspath) == 0) {
498 04ca23f4 2018-07-16 stsp free(path);
499 04ca23f4 2018-07-16 stsp path = strdup("");
500 04ca23f4 2018-07-16 stsp if (path == NULL) {
501 04ca23f4 2018-07-16 stsp err = got_error_from_errno();
504 04ca23f4 2018-07-16 stsp } else if (is_repo_child && is_cwd_child) {
505 04ca23f4 2018-07-16 stsp char *child;
506 04ca23f4 2018-07-16 stsp /* TODO: Is path inside a got worktree? */
507 04ca23f4 2018-07-16 stsp /* Strip common prefix with repository path. */
508 04ca23f4 2018-07-16 stsp err = got_path_skip_common_ancestor(&child,
509 04ca23f4 2018-07-16 stsp repo_abspath, path);
512 04ca23f4 2018-07-16 stsp free(path);
513 04ca23f4 2018-07-16 stsp path = child;
514 04ca23f4 2018-07-16 stsp } else if (is_repo_child) {
515 04ca23f4 2018-07-16 stsp /* Matched an on-disk path inside repository. */
516 04ca23f4 2018-07-16 stsp if (got_repo_is_bare(repo)) {
518 04ca23f4 2018-07-16 stsp * Matched an on-disk path inside repository
519 04ca23f4 2018-07-16 stsp * database. Treat as repository-relative.
522 04ca23f4 2018-07-16 stsp char *child;
523 04ca23f4 2018-07-16 stsp /* Strip common prefix with repository path. */
524 04ca23f4 2018-07-16 stsp err = got_path_skip_common_ancestor(&child,
525 04ca23f4 2018-07-16 stsp repo_abspath, path);
528 04ca23f4 2018-07-16 stsp free(path);
529 04ca23f4 2018-07-16 stsp path = child;
531 04ca23f4 2018-07-16 stsp } else if (is_cwd_child) {
532 04ca23f4 2018-07-16 stsp char *child;
533 04ca23f4 2018-07-16 stsp /* TODO: Is path inside a got worktree? */
534 04ca23f4 2018-07-16 stsp /* Strip common prefix with cwd. */
535 04ca23f4 2018-07-16 stsp err = got_path_skip_common_ancestor(&child, cwd,
539 04ca23f4 2018-07-16 stsp free(path);
540 04ca23f4 2018-07-16 stsp path = child;
543 04ca23f4 2018-07-16 stsp * Matched unrelated on-disk path.
544 04ca23f4 2018-07-16 stsp * Treat it as repository-relative.
549 04ca23f4 2018-07-16 stsp /* Make in-repository path absolute */
550 04ca23f4 2018-07-16 stsp if (path[0] != '/') {
551 04ca23f4 2018-07-16 stsp char *abspath;
552 04ca23f4 2018-07-16 stsp if (asprintf(&abspath, "/%s", path) == -1) {
553 04ca23f4 2018-07-16 stsp err = got_error_from_errno();
556 04ca23f4 2018-07-16 stsp free(path);
557 04ca23f4 2018-07-16 stsp path = abspath;
561 04ca23f4 2018-07-16 stsp free(repo_abspath);
563 04ca23f4 2018-07-16 stsp free(canonpath);
565 04ca23f4 2018-07-16 stsp free(path);
567 04ca23f4 2018-07-16 stsp *in_repo_path = path;
568 1510f469 2018-09-09 stsp return err;
571 1510f469 2018-09-09 stsp const struct got_error *
572 1510f469 2018-09-09 stsp got_repo_cache_packidx(struct got_repository *repo, struct got_packidx *packidx)
574 1510f469 2018-09-09 stsp const struct got_error *err = NULL;
577 1510f469 2018-09-09 stsp for (i = 0; i < nitems(repo->packidx_cache); i++) {
578 1510f469 2018-09-09 stsp if (repo->packidx_cache[i] == NULL)
582 1510f469 2018-09-09 stsp if (i == nitems(repo->packidx_cache)) {
583 1510f469 2018-09-09 stsp err = got_packidx_close(repo->packidx_cache[i - 1]);
585 1510f469 2018-09-09 stsp return err;
586 1510f469 2018-09-09 stsp memmove(&repo->packidx_cache[1], &repo->packidx_cache[0],
587 1510f469 2018-09-09 stsp sizeof(repo->packidx_cache) -
588 1510f469 2018-09-09 stsp sizeof(repo->packidx_cache[0]));
592 1510f469 2018-09-09 stsp repo->packidx_cache[i] = packidx;
593 1510f469 2018-09-09 stsp return NULL;
597 1510f469 2018-09-09 stsp is_packidx_filename(const char *name, size_t len)
599 1510f469 2018-09-09 stsp if (len != GOT_PACKIDX_NAMELEN)
602 1510f469 2018-09-09 stsp if (strncmp(name, GOT_PACK_PREFIX, strlen(GOT_PACK_PREFIX)) != 0)
605 1510f469 2018-09-09 stsp if (strcmp(name + strlen(GOT_PACK_PREFIX) +
606 1510f469 2018-09-09 stsp SHA1_DIGEST_STRING_LENGTH - 1, GOT_PACKIDX_SUFFIX) != 0)
612 1510f469 2018-09-09 stsp const struct got_error *
613 1510f469 2018-09-09 stsp got_repo_search_packidx(struct got_packidx **packidx, int *idx,
614 1510f469 2018-09-09 stsp struct got_repository *repo, struct got_object_id *id)
616 1510f469 2018-09-09 stsp const struct got_error *err;
617 1510f469 2018-09-09 stsp char *path_packdir;
618 1510f469 2018-09-09 stsp DIR *packdir;
619 1510f469 2018-09-09 stsp struct dirent *dent;
620 1510f469 2018-09-09 stsp char *path_packidx;
623 1510f469 2018-09-09 stsp /* Search pack index cache. */
624 1510f469 2018-09-09 stsp for (i = 0; i < nitems(repo->packidx_cache); i++) {
625 1510f469 2018-09-09 stsp if (repo->packidx_cache[i] == NULL)
627 1510f469 2018-09-09 stsp *idx = got_packidx_get_object_idx(repo->packidx_cache[i], id);
628 1510f469 2018-09-09 stsp if (*idx != -1) {
629 1510f469 2018-09-09 stsp *packidx = repo->packidx_cache[i];
630 1510f469 2018-09-09 stsp return NULL;
633 1510f469 2018-09-09 stsp /* No luck. Search the filesystem. */
635 1510f469 2018-09-09 stsp path_packdir = got_repo_get_path_objects_pack(repo);
636 1510f469 2018-09-09 stsp if (path_packdir == NULL)
637 1510f469 2018-09-09 stsp return got_error_from_errno();
639 1510f469 2018-09-09 stsp packdir = opendir(path_packdir);
640 1510f469 2018-09-09 stsp if (packdir == NULL) {
641 1510f469 2018-09-09 stsp err = got_error_from_errno();
645 1510f469 2018-09-09 stsp while ((dent = readdir(packdir)) != NULL) {
646 1510f469 2018-09-09 stsp if (!is_packidx_filename(dent->d_name, dent->d_namlen))
649 1510f469 2018-09-09 stsp if (asprintf(&path_packidx, "%s/%s", path_packdir,
650 1510f469 2018-09-09 stsp dent->d_name) == -1) {
651 1510f469 2018-09-09 stsp err = got_error_from_errno();
655 1510f469 2018-09-09 stsp err = got_packidx_open(packidx, path_packidx, 0);
656 1510f469 2018-09-09 stsp free(path_packidx);
660 1510f469 2018-09-09 stsp *idx = got_packidx_get_object_idx(*packidx, id);
661 1510f469 2018-09-09 stsp if (*idx != -1) {
662 1510f469 2018-09-09 stsp err = NULL; /* found the object */
663 1510f469 2018-09-09 stsp err = got_repo_cache_packidx(repo, *packidx);
667 1510f469 2018-09-09 stsp err = got_packidx_close(*packidx);
668 1510f469 2018-09-09 stsp *packidx = NULL;
673 1510f469 2018-09-09 stsp err = got_error(GOT_ERR_NO_OBJ);
675 1510f469 2018-09-09 stsp free(path_packdir);
676 1510f469 2018-09-09 stsp if (packdir && closedir(packdir) != 0 && err == 0)
677 1510f469 2018-09-09 stsp err = got_error_from_errno();
678 04ca23f4 2018-07-16 stsp return err;
681 1510f469 2018-09-09 stsp static const struct got_error *
682 1510f469 2018-09-09 stsp read_packfile_hdr(int fd, struct got_packidx *packidx)
684 1510f469 2018-09-09 stsp const struct got_error *err = NULL;
685 1510f469 2018-09-09 stsp uint32_t totobj = betoh32(packidx->hdr.fanout_table[0xff]);
686 1510f469 2018-09-09 stsp struct got_packfile_hdr hdr;
689 1510f469 2018-09-09 stsp n = read(fd, &hdr, sizeof(hdr));
691 1510f469 2018-09-09 stsp return got_error_from_errno();
692 1510f469 2018-09-09 stsp if (n != sizeof(hdr))
693 1510f469 2018-09-09 stsp return got_error(GOT_ERR_BAD_PACKFILE);
695 1510f469 2018-09-09 stsp if (betoh32(hdr.signature) != GOT_PACKFILE_SIGNATURE ||
696 1510f469 2018-09-09 stsp betoh32(hdr.version) != GOT_PACKFILE_VERSION ||
697 1510f469 2018-09-09 stsp betoh32(hdr.nobjects) != totobj)
698 1510f469 2018-09-09 stsp err = got_error(GOT_ERR_BAD_PACKFILE);
700 1510f469 2018-09-09 stsp return err;
703 1510f469 2018-09-09 stsp static const struct got_error *
704 1510f469 2018-09-09 stsp open_packfile(int *fd, const char *path_packfile, struct got_packidx *packidx)
706 1510f469 2018-09-09 stsp const struct got_error *err = NULL;
708 1510f469 2018-09-09 stsp *fd = open(path_packfile, O_RDONLY | O_NOFOLLOW, GOT_DEFAULT_FILE_MODE);
709 1510f469 2018-09-09 stsp if (*fd == -1)
710 1510f469 2018-09-09 stsp return got_error_from_errno();
712 1510f469 2018-09-09 stsp if (packidx) {
713 1510f469 2018-09-09 stsp err = read_packfile_hdr(*fd, packidx);
715 1510f469 2018-09-09 stsp close(*fd);
720 1510f469 2018-09-09 stsp return err;
723 1510f469 2018-09-09 stsp const struct got_error *
724 1510f469 2018-09-09 stsp got_repo_cache_pack(struct got_pack **packp, struct got_repository *repo,
725 1510f469 2018-09-09 stsp const char *path_packfile, struct got_packidx *packidx)
727 1510f469 2018-09-09 stsp const struct got_error *err = NULL;
728 1510f469 2018-09-09 stsp struct got_pack *pack = NULL;
732 1510f469 2018-09-09 stsp *packp = NULL;
734 1510f469 2018-09-09 stsp for (i = 0; i < nitems(repo->packs); i++) {
735 1510f469 2018-09-09 stsp pack = &repo->packs[i];
736 1510f469 2018-09-09 stsp if (pack->path_packfile == NULL)
738 1510f469 2018-09-09 stsp if (strcmp(pack->path_packfile, path_packfile) == 0)
739 1510f469 2018-09-09 stsp return NULL;
742 1510f469 2018-09-09 stsp if (i == nitems(repo->packs) - 1) {
743 1510f469 2018-09-09 stsp err = got_pack_close(&repo->packs[i - 1]);
745 1510f469 2018-09-09 stsp return err;
746 1510f469 2018-09-09 stsp memmove(&repo->packs[1], &repo->packs[0],
747 1510f469 2018-09-09 stsp sizeof(repo->packs) - sizeof(repo->packs[0]));
751 1510f469 2018-09-09 stsp pack = &repo->packs[i];
753 1510f469 2018-09-09 stsp pack->path_packfile = strdup(path_packfile);
754 1510f469 2018-09-09 stsp if (pack->path_packfile == NULL) {
755 1510f469 2018-09-09 stsp err = got_error_from_errno();
759 1510f469 2018-09-09 stsp err = open_packfile(&pack->fd, path_packfile, packidx);
763 1510f469 2018-09-09 stsp err = got_pack_get_packfile_size(&pack->filesize, path_packfile);
767 90636195 2018-09-11 stsp pack->privsep_child = NULL;
769 1510f469 2018-09-09 stsp #ifndef GOT_PACK_NO_MMAP
770 1510f469 2018-09-09 stsp pack->map = mmap(NULL, pack->filesize, PROT_READ, MAP_PRIVATE,
771 1510f469 2018-09-09 stsp pack->fd, 0);
772 1510f469 2018-09-09 stsp if (pack->map == MAP_FAILED)
773 1510f469 2018-09-09 stsp pack->map = NULL; /* fall back to read(2) */
777 1510f469 2018-09-09 stsp if (pack) {
778 1510f469 2018-09-09 stsp free(pack->path_packfile);
779 1510f469 2018-09-09 stsp memset(pack, 0, sizeof(*pack));
781 1510f469 2018-09-09 stsp } else if (packp)
782 1510f469 2018-09-09 stsp *packp = pack;
783 1510f469 2018-09-09 stsp return err;
786 1510f469 2018-09-09 stsp struct got_pack *
787 1510f469 2018-09-09 stsp got_repo_get_cached_pack(struct got_repository *repo, const char *path_packfile)
789 1510f469 2018-09-09 stsp struct got_pack *pack = NULL;
792 1510f469 2018-09-09 stsp for (i = 0; i < nitems(repo->packs); i++) {
793 1510f469 2018-09-09 stsp pack = &repo->packs[i];
794 1510f469 2018-09-09 stsp if (pack->path_packfile == NULL)
796 1510f469 2018-09-09 stsp if (strcmp(pack->path_packfile, path_packfile) == 0)
797 1510f469 2018-09-09 stsp return pack;
800 1510f469 2018-09-09 stsp return NULL;