2 5d56da81 2019-01-13 stsp * Copyright (c) 2018, 2019 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"
68 fb79db15 2019-02-01 stsp #define GOT_PACKED_REFS_FILE "packed-refs"
70 7839bc15 2019-01-06 stsp const char *
71 86c3caaf 2018-03-09 stsp got_repo_get_path(struct got_repository *repo)
73 7839bc15 2019-01-06 stsp return repo->path;
76 6e9da951 2019-01-06 stsp const char *
77 11995603 2017-11-05 stsp got_repo_get_path_git_dir(struct got_repository *repo)
79 6e9da951 2019-01-06 stsp return repo->path_git_dir;
83 04ca23f4 2018-07-16 stsp got_repo_is_bare(struct got_repository *repo)
85 04ca23f4 2018-07-16 stsp return (strcmp(repo->path, repo->path_git_dir) == 0);
88 4027f31a 2017-11-04 stsp static char *
89 4027f31a 2017-11-04 stsp get_path_git_child(struct got_repository *repo, const char *basename)
91 4027f31a 2017-11-04 stsp char *path_child;
93 4986b9d5 2018-03-12 stsp if (asprintf(&path_child, "%s/%s", repo->path_git_dir,
94 4027f31a 2017-11-04 stsp basename) == -1)
95 4027f31a 2017-11-04 stsp return NULL;
97 4027f31a 2017-11-04 stsp return path_child;
101 11995603 2017-11-05 stsp got_repo_get_path_objects(struct got_repository *repo)
103 4027f31a 2017-11-04 stsp return get_path_git_child(repo, GOT_OBJECTS_DIR);
107 a1fd68d8 2018-01-12 stsp got_repo_get_path_objects_pack(struct got_repository *repo)
109 a1fd68d8 2018-01-12 stsp return get_path_git_child(repo, GOT_OBJECTS_PACK_DIR);
113 11995603 2017-11-05 stsp got_repo_get_path_refs(struct got_repository *repo)
115 4027f31a 2017-11-04 stsp return get_path_git_child(repo, GOT_REFS_DIR);
119 fb79db15 2019-02-01 stsp got_repo_get_path_packed_refs(struct got_repository *repo)
121 fb79db15 2019-02-01 stsp return get_path_git_child(repo, GOT_PACKED_REFS_FILE);
124 4027f31a 2017-11-04 stsp static char *
125 4027f31a 2017-11-04 stsp get_path_head(struct got_repository *repo)
127 4027f31a 2017-11-04 stsp return get_path_git_child(repo, GOT_HEAD_FILE);
131 4027f31a 2017-11-04 stsp is_git_repo(struct got_repository *repo)
133 6e9da951 2019-01-06 stsp const char *path_git = got_repo_get_path_git_dir(repo);
134 11995603 2017-11-05 stsp char *path_objects = got_repo_get_path_objects(repo);
135 11995603 2017-11-05 stsp char *path_refs = got_repo_get_path_refs(repo);
136 4027f31a 2017-11-04 stsp char *path_head = get_path_head(repo);
137 deeca238 2018-03-12 stsp int ret = 0;
138 deeca238 2018-03-12 stsp struct stat sb;
139 4847cca1 2018-03-12 stsp struct got_reference *head_ref;
141 deeca238 2018-03-12 stsp if (lstat(path_git, &sb) == -1)
143 deeca238 2018-03-12 stsp if (!S_ISDIR(sb.st_mode))
146 deeca238 2018-03-12 stsp if (lstat(path_objects, &sb) == -1)
148 deeca238 2018-03-12 stsp if (!S_ISDIR(sb.st_mode))
151 deeca238 2018-03-12 stsp if (lstat(path_refs, &sb) == -1)
153 deeca238 2018-03-12 stsp if (!S_ISDIR(sb.st_mode))
156 deeca238 2018-03-12 stsp if (lstat(path_head, &sb) == -1)
158 deeca238 2018-03-12 stsp if (!S_ISREG(sb.st_mode))
161 4847cca1 2018-03-12 stsp /* Check if the HEAD reference can be opened. */
162 4847cca1 2018-03-12 stsp if (got_ref_open(&head_ref, repo, GOT_REF_HEAD) != NULL)
164 4847cca1 2018-03-12 stsp got_ref_close(head_ref);
168 4027f31a 2017-11-04 stsp free(path_objects);
169 4027f31a 2017-11-04 stsp free(path_refs);
170 4027f31a 2017-11-04 stsp free(path_head);
171 4027f31a 2017-11-04 stsp return ret;
175 f6be5c30 2018-06-22 stsp const struct got_error *
176 f6be5c30 2018-06-22 stsp got_repo_cache_object(struct got_repository *repo, struct got_object_id *id,
177 f6be5c30 2018-06-22 stsp struct got_object *obj)
179 ccfe88e6 2018-07-12 stsp #ifndef GOT_NO_OBJ_CACHE
180 f6be5c30 2018-06-22 stsp const struct got_error *err = NULL;
181 6bef87be 2018-09-11 stsp err = got_object_cache_add(&repo->objcache, id, obj);
183 f6be5c30 2018-06-22 stsp return err;
184 f6be5c30 2018-06-22 stsp obj->refcnt++;
186 f6be5c30 2018-06-22 stsp return NULL;
189 7bb0daa1 2018-06-21 stsp struct got_object *
190 7bb0daa1 2018-06-21 stsp got_repo_get_cached_object(struct got_repository *repo,
191 7bb0daa1 2018-06-21 stsp struct got_object_id *id)
193 6bef87be 2018-09-11 stsp return (struct got_object *)got_object_cache_get(&repo->objcache, id);
196 4027f31a 2017-11-04 stsp const struct got_error *
197 f6be5c30 2018-06-22 stsp got_repo_cache_tree(struct got_repository *repo, struct got_object_id *id,
198 f6be5c30 2018-06-22 stsp struct got_tree_object *tree)
200 ccfe88e6 2018-07-12 stsp #ifndef GOT_NO_OBJ_CACHE
201 f6be5c30 2018-06-22 stsp const struct got_error *err = NULL;
202 6bef87be 2018-09-11 stsp err = got_object_cache_add(&repo->treecache, id, tree);
204 f6be5c30 2018-06-22 stsp return err;
205 f6be5c30 2018-06-22 stsp tree->refcnt++;
207 f6be5c30 2018-06-22 stsp return NULL;
210 f6be5c30 2018-06-22 stsp struct got_tree_object *
211 f6be5c30 2018-06-22 stsp got_repo_get_cached_tree(struct got_repository *repo,
212 f6be5c30 2018-06-22 stsp struct got_object_id *id)
214 6bef87be 2018-09-11 stsp return (struct got_tree_object *)got_object_cache_get(
215 6bef87be 2018-09-11 stsp &repo->treecache, id);
218 1943de01 2018-06-22 stsp const struct got_error *
219 1943de01 2018-06-22 stsp got_repo_cache_commit(struct got_repository *repo, struct got_object_id *id,
220 1943de01 2018-06-22 stsp struct got_commit_object *commit)
222 ccfe88e6 2018-07-12 stsp #ifndef GOT_NO_OBJ_CACHE
223 1943de01 2018-06-22 stsp const struct got_error *err = NULL;
224 6bef87be 2018-09-11 stsp err = got_object_cache_add(&repo->commitcache, id, commit);
226 1943de01 2018-06-22 stsp return err;
227 1943de01 2018-06-22 stsp commit->refcnt++;
229 f6be5c30 2018-06-22 stsp return NULL;
232 1943de01 2018-06-22 stsp struct got_commit_object *
233 1943de01 2018-06-22 stsp got_repo_get_cached_commit(struct got_repository *repo,
234 1943de01 2018-06-22 stsp struct got_object_id *id)
236 6bef87be 2018-09-11 stsp return (struct got_commit_object *)got_object_cache_get(
237 6bef87be 2018-09-11 stsp &repo->commitcache, id);
240 f4a881ce 2018-11-17 stsp const struct got_error *
241 f4a881ce 2018-11-17 stsp got_repo_cache_tag(struct got_repository *repo, struct got_object_id *id,
242 f4a881ce 2018-11-17 stsp struct got_tag_object *tag)
244 f4a881ce 2018-11-17 stsp #ifndef GOT_NO_OBJ_CACHE
245 f4a881ce 2018-11-17 stsp const struct got_error *err = NULL;
246 f4a881ce 2018-11-17 stsp err = got_object_cache_add(&repo->tagcache, id, tag);
248 f4a881ce 2018-11-17 stsp return err;
249 f4a881ce 2018-11-17 stsp tag->refcnt++;
251 f4a881ce 2018-11-17 stsp return NULL;
254 f4a881ce 2018-11-17 stsp struct got_tag_object *
255 f4a881ce 2018-11-17 stsp got_repo_get_cached_tag(struct got_repository *repo, struct got_object_id *id)
257 f4a881ce 2018-11-17 stsp return (struct got_tag_object *)got_object_cache_get(
258 f4a881ce 2018-11-17 stsp &repo->tagcache, id);
261 f6be5c30 2018-06-22 stsp const struct got_error *
262 85f51bba 2018-07-16 stsp open_repo(struct got_repository *repo, const char *path)
264 85f51bba 2018-07-16 stsp const struct got_error *err = NULL;
266 85f51bba 2018-07-16 stsp /* bare git repository? */
267 85f51bba 2018-07-16 stsp repo->path_git_dir = strdup(path);
268 ee645855 2019-02-05 stsp if (repo->path_git_dir == NULL)
269 ee645855 2019-02-05 stsp return got_error_from_errno();
270 85f51bba 2018-07-16 stsp if (is_git_repo(repo)) {
271 85f51bba 2018-07-16 stsp repo->path = strdup(repo->path_git_dir);
272 85f51bba 2018-07-16 stsp if (repo->path == NULL) {
273 85f51bba 2018-07-16 stsp err = got_error_from_errno();
276 85f51bba 2018-07-16 stsp return NULL;
279 85f51bba 2018-07-16 stsp /* git repository with working tree? */
280 85f51bba 2018-07-16 stsp free(repo->path_git_dir);
281 85f51bba 2018-07-16 stsp if (asprintf(&repo->path_git_dir, "%s/%s", path, GOT_GIT_DIR) == -1) {
282 85f51bba 2018-07-16 stsp err = got_error_from_errno();
285 85f51bba 2018-07-16 stsp if (is_git_repo(repo)) {
286 85f51bba 2018-07-16 stsp repo->path = strdup(path);
287 85f51bba 2018-07-16 stsp if (repo->path == NULL) {
288 85f51bba 2018-07-16 stsp err = got_error_from_errno();
291 85f51bba 2018-07-16 stsp return NULL;
294 ee645855 2019-02-05 stsp err = got_error(GOT_ERR_NOT_GIT_REPO);
297 ee645855 2019-02-05 stsp free(repo->path);
298 ee645855 2019-02-05 stsp repo->path = NULL;
299 85f51bba 2018-07-16 stsp free(repo->path_git_dir);
300 ee645855 2019-02-05 stsp repo->path_git_dir = NULL;
302 85f51bba 2018-07-16 stsp return err;
305 85f51bba 2018-07-16 stsp const struct got_error *
306 85f51bba 2018-07-16 stsp got_repo_open(struct got_repository **repop, const char *path)
308 92af5469 2017-11-05 stsp struct got_repository *repo = NULL;
309 92af5469 2017-11-05 stsp const struct got_error *err = NULL;
310 85f51bba 2018-07-16 stsp char *abspath, *normpath = NULL;
311 ad242220 2018-09-08 stsp int i, tried_root = 0;
313 85f51bba 2018-07-16 stsp *repop = NULL;
315 2393f13b 2018-03-09 stsp if (got_path_is_absolute(path))
316 2393f13b 2018-03-09 stsp abspath = strdup(path);
318 2393f13b 2018-03-09 stsp abspath = got_path_get_absolute(path);
319 92af5469 2017-11-05 stsp if (abspath == NULL)
320 92af5469 2017-11-05 stsp return got_error(GOT_ERR_BAD_PATH);
322 4027f31a 2017-11-04 stsp repo = calloc(1, sizeof(*repo));
323 92af5469 2017-11-05 stsp if (repo == NULL) {
324 0a585a0d 2018-03-17 stsp err = got_error_from_errno();
328 ad242220 2018-09-08 stsp for (i = 0; i < nitems(repo->privsep_children); i++) {
329 3516b818 2018-09-08 stsp memset(&repo->privsep_children[i], 0,
330 3516b818 2018-09-08 stsp sizeof(repo->privsep_children[0]));
331 ad242220 2018-09-08 stsp repo->privsep_children[i].imsg_fd = -1;
334 6bef87be 2018-09-11 stsp err = got_object_cache_init(&repo->objcache,
335 6bef87be 2018-09-11 stsp GOT_OBJECT_CACHE_TYPE_OBJ);
338 6bef87be 2018-09-11 stsp err = got_object_cache_init(&repo->treecache,
339 6bef87be 2018-09-11 stsp GOT_OBJECT_CACHE_TYPE_TREE);
342 6bef87be 2018-09-11 stsp err = got_object_cache_init(&repo->commitcache,
343 6bef87be 2018-09-11 stsp GOT_OBJECT_CACHE_TYPE_COMMIT);
346 f4a881ce 2018-11-17 stsp err = got_object_cache_init(&repo->tagcache,
347 f4a881ce 2018-11-17 stsp GOT_OBJECT_CACHE_TYPE_TAG);
351 85f51bba 2018-07-16 stsp normpath = got_path_normalize(abspath);
352 85f51bba 2018-07-16 stsp if (normpath == NULL) {
353 92af5469 2017-11-05 stsp err = got_error(GOT_ERR_BAD_PATH);
357 85f51bba 2018-07-16 stsp path = normpath;
359 85f51bba 2018-07-16 stsp err = open_repo(repo, path);
360 85f51bba 2018-07-16 stsp if (err == NULL)
362 85f51bba 2018-07-16 stsp if (err->code != GOT_ERR_NOT_GIT_REPO)
364 85f51bba 2018-07-16 stsp if (path[0] == '/' && path[1] == '\0') {
365 85f51bba 2018-07-16 stsp if (tried_root) {
366 85f51bba 2018-07-16 stsp err = got_error(GOT_ERR_NOT_GIT_REPO);
369 85f51bba 2018-07-16 stsp tried_root = 1;
371 85f51bba 2018-07-16 stsp path = dirname(path);
372 85f51bba 2018-07-16 stsp if (path == NULL)
373 85f51bba 2018-07-16 stsp err = got_error_from_errno();
374 85f51bba 2018-07-16 stsp } while (path);
377 5c2f5761 2018-09-19 stsp got_repo_close(repo);
379 85f51bba 2018-07-16 stsp *repop = repo;
380 92af5469 2017-11-05 stsp free(abspath);
381 85f51bba 2018-07-16 stsp free(normpath);
382 92af5469 2017-11-05 stsp return err;
385 ad242220 2018-09-08 stsp const struct got_error *
386 4027f31a 2017-11-04 stsp got_repo_close(struct got_repository *repo)
388 ad242220 2018-09-08 stsp const struct got_error *err = NULL, *child_err;
391 65cf1e80 2018-03-16 stsp for (i = 0; i < nitems(repo->packidx_cache); i++) {
392 65cf1e80 2018-03-16 stsp if (repo->packidx_cache[i] == NULL)
394 65cf1e80 2018-03-16 stsp got_packidx_close(repo->packidx_cache[i]);
397 7e656b93 2018-03-17 stsp for (i = 0; i < nitems(repo->packs); i++) {
398 7e656b93 2018-03-17 stsp if (repo->packs[i].path_packfile == NULL)
400 7e656b93 2018-03-17 stsp got_pack_close(&repo->packs[i]);
403 4027f31a 2017-11-04 stsp free(repo->path);
404 4986b9d5 2018-03-12 stsp free(repo->path_git_dir);
406 6bef87be 2018-09-11 stsp got_object_cache_close(&repo->objcache);
407 6bef87be 2018-09-11 stsp got_object_cache_close(&repo->treecache);
408 6bef87be 2018-09-11 stsp got_object_cache_close(&repo->commitcache);
409 f4a881ce 2018-11-17 stsp got_object_cache_close(&repo->tagcache);
411 ad242220 2018-09-08 stsp for (i = 0; i < nitems(repo->privsep_children); i++) {
412 ad242220 2018-09-08 stsp if (repo->privsep_children[i].imsg_fd == -1)
414 3516b818 2018-09-08 stsp imsg_clear(repo->privsep_children[i].ibuf);
415 3516b818 2018-09-08 stsp free(repo->privsep_children[i].ibuf);
416 ad242220 2018-09-08 stsp err = got_privsep_send_stop(repo->privsep_children[i].imsg_fd);
417 876c234b 2018-09-10 stsp child_err = got_privsep_wait_for_child(
418 876c234b 2018-09-10 stsp repo->privsep_children[i].pid);
419 ad242220 2018-09-08 stsp if (child_err && err == NULL)
420 ad242220 2018-09-08 stsp err = child_err;
421 3a6ce05a 2019-02-11 stsp if (close(repo->privsep_children[i].imsg_fd) != 0 &&
422 3a6ce05a 2019-02-11 stsp err == NULL)
423 3a6ce05a 2019-02-11 stsp err = got_error_from_errno();
425 4027f31a 2017-11-04 stsp free(repo);
427 ad242220 2018-09-08 stsp return err;
430 04ca23f4 2018-07-16 stsp const struct got_error *
431 04ca23f4 2018-07-16 stsp got_repo_map_path(char **in_repo_path, struct got_repository *repo,
432 23721109 2018-10-22 stsp const char *input_path, int check_disk)
434 04ca23f4 2018-07-16 stsp const struct got_error *err = NULL;
435 7839bc15 2019-01-06 stsp const char *repo_abspath = NULL;
436 04ca23f4 2018-07-16 stsp struct stat sb;
437 04ca23f4 2018-07-16 stsp size_t repolen, cwdlen, len;
438 7839bc15 2019-01-06 stsp char *cwd, *canonpath, *path = NULL;
440 04ca23f4 2018-07-16 stsp *in_repo_path = NULL;
442 04ca23f4 2018-07-16 stsp cwd = getcwd(NULL, 0);
443 04ca23f4 2018-07-16 stsp if (cwd == NULL)
444 04ca23f4 2018-07-16 stsp return got_error_from_errno();
446 04ca23f4 2018-07-16 stsp canonpath = strdup(input_path);
447 04ca23f4 2018-07-16 stsp if (canonpath == NULL) {
448 04ca23f4 2018-07-16 stsp err = got_error_from_errno();
451 04ca23f4 2018-07-16 stsp err = got_canonpath(input_path, canonpath, strlen(canonpath) + 1);
455 04ca23f4 2018-07-16 stsp repo_abspath = got_repo_get_path(repo);
457 04ca23f4 2018-07-16 stsp /* TODO: Call "get in-repository path of work-tree node" API. */
459 23721109 2018-10-22 stsp if (!check_disk)
460 23721109 2018-10-22 stsp path = strdup(canonpath);
461 23721109 2018-10-22 stsp else if (lstat(canonpath, &sb) != 0) {
462 04ca23f4 2018-07-16 stsp if (errno != ENOENT) {
463 04ca23f4 2018-07-16 stsp err = got_error_from_errno();
467 04ca23f4 2018-07-16 stsp * Path is not on disk.
468 04ca23f4 2018-07-16 stsp * Assume it is already relative to repository root.
470 04ca23f4 2018-07-16 stsp path = strdup(canonpath);
472 04ca23f4 2018-07-16 stsp int is_repo_child = 0, is_cwd_child = 0;
474 04ca23f4 2018-07-16 stsp path = realpath(canonpath, NULL);
475 04ca23f4 2018-07-16 stsp if (path == NULL) {
476 04ca23f4 2018-07-16 stsp err = got_error_from_errno();
480 04ca23f4 2018-07-16 stsp repolen = strlen(repo_abspath);
481 04ca23f4 2018-07-16 stsp cwdlen = strlen(cwd);
482 04ca23f4 2018-07-16 stsp len = strlen(path);
484 04ca23f4 2018-07-16 stsp if (len > repolen && strncmp(path, repo_abspath, repolen) == 0)
485 04ca23f4 2018-07-16 stsp is_repo_child = 1;
486 04ca23f4 2018-07-16 stsp if (len > cwdlen && strncmp(path, cwd, cwdlen) == 0)
487 04ca23f4 2018-07-16 stsp is_cwd_child = 1;
489 04ca23f4 2018-07-16 stsp if (strcmp(path, repo_abspath) == 0) {
490 04ca23f4 2018-07-16 stsp free(path);
491 04ca23f4 2018-07-16 stsp path = strdup("");
492 04ca23f4 2018-07-16 stsp if (path == NULL) {
493 04ca23f4 2018-07-16 stsp err = got_error_from_errno();
496 04ca23f4 2018-07-16 stsp } else if (is_repo_child && is_cwd_child) {
497 04ca23f4 2018-07-16 stsp char *child;
498 04ca23f4 2018-07-16 stsp /* TODO: Is path inside a got worktree? */
499 04ca23f4 2018-07-16 stsp /* Strip common prefix with repository path. */
500 04ca23f4 2018-07-16 stsp err = got_path_skip_common_ancestor(&child,
501 04ca23f4 2018-07-16 stsp repo_abspath, path);
504 04ca23f4 2018-07-16 stsp free(path);
505 04ca23f4 2018-07-16 stsp path = child;
506 04ca23f4 2018-07-16 stsp } else if (is_repo_child) {
507 04ca23f4 2018-07-16 stsp /* Matched an on-disk path inside repository. */
508 04ca23f4 2018-07-16 stsp if (got_repo_is_bare(repo)) {
510 04ca23f4 2018-07-16 stsp * Matched an on-disk path inside repository
511 04ca23f4 2018-07-16 stsp * database. Treat as repository-relative.
514 04ca23f4 2018-07-16 stsp char *child;
515 04ca23f4 2018-07-16 stsp /* Strip common prefix with repository path. */
516 04ca23f4 2018-07-16 stsp err = got_path_skip_common_ancestor(&child,
517 04ca23f4 2018-07-16 stsp repo_abspath, path);
520 04ca23f4 2018-07-16 stsp free(path);
521 04ca23f4 2018-07-16 stsp path = child;
523 04ca23f4 2018-07-16 stsp } else if (is_cwd_child) {
524 04ca23f4 2018-07-16 stsp char *child;
525 04ca23f4 2018-07-16 stsp /* TODO: Is path inside a got worktree? */
526 04ca23f4 2018-07-16 stsp /* Strip common prefix with cwd. */
527 04ca23f4 2018-07-16 stsp err = got_path_skip_common_ancestor(&child, cwd,
531 04ca23f4 2018-07-16 stsp free(path);
532 04ca23f4 2018-07-16 stsp path = child;
535 04ca23f4 2018-07-16 stsp * Matched unrelated on-disk path.
536 04ca23f4 2018-07-16 stsp * Treat it as repository-relative.
541 04ca23f4 2018-07-16 stsp /* Make in-repository path absolute */
542 04ca23f4 2018-07-16 stsp if (path[0] != '/') {
543 04ca23f4 2018-07-16 stsp char *abspath;
544 04ca23f4 2018-07-16 stsp if (asprintf(&abspath, "/%s", path) == -1) {
545 04ca23f4 2018-07-16 stsp err = got_error_from_errno();
548 04ca23f4 2018-07-16 stsp free(path);
549 04ca23f4 2018-07-16 stsp path = abspath;
554 04ca23f4 2018-07-16 stsp free(canonpath);
556 04ca23f4 2018-07-16 stsp free(path);
558 04ca23f4 2018-07-16 stsp *in_repo_path = path;
559 1510f469 2018-09-09 stsp return err;
562 1510f469 2018-09-09 stsp const struct got_error *
563 1510f469 2018-09-09 stsp got_repo_cache_packidx(struct got_repository *repo, struct got_packidx *packidx)
565 1510f469 2018-09-09 stsp const struct got_error *err = NULL;
568 1510f469 2018-09-09 stsp for (i = 0; i < nitems(repo->packidx_cache); i++) {
569 1510f469 2018-09-09 stsp if (repo->packidx_cache[i] == NULL)
572 1510f469 2018-09-09 stsp if (i == nitems(repo->packidx_cache)) {
573 1510f469 2018-09-09 stsp err = got_packidx_close(repo->packidx_cache[i - 1]);
575 1510f469 2018-09-09 stsp return err;
579 15fe583f 2018-11-05 stsp * Insert the new pack index at the front so it will
580 15fe583f 2018-11-05 stsp * be searched first in the future.
582 15fe583f 2018-11-05 stsp memmove(&repo->packidx_cache[1], &repo->packidx_cache[0],
583 15fe583f 2018-11-05 stsp sizeof(repo->packidx_cache) -
584 15fe583f 2018-11-05 stsp sizeof(repo->packidx_cache[0]));
585 15fe583f 2018-11-05 stsp repo->packidx_cache[0] = packidx;
587 1510f469 2018-09-09 stsp return NULL;
591 1510f469 2018-09-09 stsp is_packidx_filename(const char *name, size_t len)
593 1510f469 2018-09-09 stsp if (len != GOT_PACKIDX_NAMELEN)
596 1510f469 2018-09-09 stsp if (strncmp(name, GOT_PACK_PREFIX, strlen(GOT_PACK_PREFIX)) != 0)
599 1510f469 2018-09-09 stsp if (strcmp(name + strlen(GOT_PACK_PREFIX) +
600 1510f469 2018-09-09 stsp SHA1_DIGEST_STRING_LENGTH - 1, GOT_PACKIDX_SUFFIX) != 0)
606 1510f469 2018-09-09 stsp const struct got_error *
607 1510f469 2018-09-09 stsp got_repo_search_packidx(struct got_packidx **packidx, int *idx,
608 1510f469 2018-09-09 stsp struct got_repository *repo, struct got_object_id *id)
610 1510f469 2018-09-09 stsp const struct got_error *err;
611 1510f469 2018-09-09 stsp char *path_packdir;
612 1510f469 2018-09-09 stsp DIR *packdir;
613 1510f469 2018-09-09 stsp struct dirent *dent;
614 1510f469 2018-09-09 stsp char *path_packidx;
617 1510f469 2018-09-09 stsp /* Search pack index cache. */
618 1510f469 2018-09-09 stsp for (i = 0; i < nitems(repo->packidx_cache); i++) {
619 1510f469 2018-09-09 stsp if (repo->packidx_cache[i] == NULL)
621 1510f469 2018-09-09 stsp *idx = got_packidx_get_object_idx(repo->packidx_cache[i], id);
622 1510f469 2018-09-09 stsp if (*idx != -1) {
623 1510f469 2018-09-09 stsp *packidx = repo->packidx_cache[i];
624 1510f469 2018-09-09 stsp return NULL;
627 1510f469 2018-09-09 stsp /* No luck. Search the filesystem. */
629 1510f469 2018-09-09 stsp path_packdir = got_repo_get_path_objects_pack(repo);
630 1510f469 2018-09-09 stsp if (path_packdir == NULL)
631 1510f469 2018-09-09 stsp return got_error_from_errno();
633 1510f469 2018-09-09 stsp packdir = opendir(path_packdir);
634 1510f469 2018-09-09 stsp if (packdir == NULL) {
635 1510f469 2018-09-09 stsp err = got_error_from_errno();
639 1510f469 2018-09-09 stsp while ((dent = readdir(packdir)) != NULL) {
640 1510f469 2018-09-09 stsp if (!is_packidx_filename(dent->d_name, dent->d_namlen))
643 1510f469 2018-09-09 stsp if (asprintf(&path_packidx, "%s/%s", path_packdir,
644 1510f469 2018-09-09 stsp dent->d_name) == -1) {
645 1510f469 2018-09-09 stsp err = got_error_from_errno();
649 1510f469 2018-09-09 stsp err = got_packidx_open(packidx, path_packidx, 0);
650 1510f469 2018-09-09 stsp free(path_packidx);
654 1510f469 2018-09-09 stsp *idx = got_packidx_get_object_idx(*packidx, id);
655 1510f469 2018-09-09 stsp if (*idx != -1) {
656 1510f469 2018-09-09 stsp err = NULL; /* found the object */
657 1510f469 2018-09-09 stsp err = got_repo_cache_packidx(repo, *packidx);
661 1510f469 2018-09-09 stsp err = got_packidx_close(*packidx);
662 1510f469 2018-09-09 stsp *packidx = NULL;
667 91a3d81f 2018-11-11 stsp err = got_error_no_obj(id);
669 1510f469 2018-09-09 stsp free(path_packdir);
670 1510f469 2018-09-09 stsp if (packdir && closedir(packdir) != 0 && err == 0)
671 1510f469 2018-09-09 stsp err = got_error_from_errno();
672 04ca23f4 2018-07-16 stsp return err;
675 1510f469 2018-09-09 stsp static const struct got_error *
676 1510f469 2018-09-09 stsp read_packfile_hdr(int fd, struct got_packidx *packidx)
678 1510f469 2018-09-09 stsp const struct got_error *err = NULL;
679 1510f469 2018-09-09 stsp uint32_t totobj = betoh32(packidx->hdr.fanout_table[0xff]);
680 1510f469 2018-09-09 stsp struct got_packfile_hdr hdr;
683 1510f469 2018-09-09 stsp n = read(fd, &hdr, sizeof(hdr));
685 1510f469 2018-09-09 stsp return got_error_from_errno();
686 1510f469 2018-09-09 stsp if (n != sizeof(hdr))
687 1510f469 2018-09-09 stsp return got_error(GOT_ERR_BAD_PACKFILE);
689 1510f469 2018-09-09 stsp if (betoh32(hdr.signature) != GOT_PACKFILE_SIGNATURE ||
690 1510f469 2018-09-09 stsp betoh32(hdr.version) != GOT_PACKFILE_VERSION ||
691 1510f469 2018-09-09 stsp betoh32(hdr.nobjects) != totobj)
692 1510f469 2018-09-09 stsp err = got_error(GOT_ERR_BAD_PACKFILE);
694 1510f469 2018-09-09 stsp return err;
697 1510f469 2018-09-09 stsp static const struct got_error *
698 1510f469 2018-09-09 stsp open_packfile(int *fd, const char *path_packfile, struct got_packidx *packidx)
700 1510f469 2018-09-09 stsp const struct got_error *err = NULL;
702 1510f469 2018-09-09 stsp *fd = open(path_packfile, O_RDONLY | O_NOFOLLOW, GOT_DEFAULT_FILE_MODE);
703 1510f469 2018-09-09 stsp if (*fd == -1)
704 1510f469 2018-09-09 stsp return got_error_from_errno();
706 1510f469 2018-09-09 stsp if (packidx) {
707 1510f469 2018-09-09 stsp err = read_packfile_hdr(*fd, packidx);
709 1510f469 2018-09-09 stsp close(*fd);
714 1510f469 2018-09-09 stsp return err;
717 1510f469 2018-09-09 stsp const struct got_error *
718 1510f469 2018-09-09 stsp got_repo_cache_pack(struct got_pack **packp, struct got_repository *repo,
719 1510f469 2018-09-09 stsp const char *path_packfile, struct got_packidx *packidx)
721 1510f469 2018-09-09 stsp const struct got_error *err = NULL;
722 1510f469 2018-09-09 stsp struct got_pack *pack = NULL;
726 1510f469 2018-09-09 stsp *packp = NULL;
728 1510f469 2018-09-09 stsp for (i = 0; i < nitems(repo->packs); i++) {
729 1510f469 2018-09-09 stsp pack = &repo->packs[i];
730 1510f469 2018-09-09 stsp if (pack->path_packfile == NULL)
732 1510f469 2018-09-09 stsp if (strcmp(pack->path_packfile, path_packfile) == 0)
733 1510f469 2018-09-09 stsp return NULL;
736 1510f469 2018-09-09 stsp if (i == nitems(repo->packs) - 1) {
737 1510f469 2018-09-09 stsp err = got_pack_close(&repo->packs[i - 1]);
739 1510f469 2018-09-09 stsp return err;
740 1510f469 2018-09-09 stsp memmove(&repo->packs[1], &repo->packs[0],
741 1510f469 2018-09-09 stsp sizeof(repo->packs) - sizeof(repo->packs[0]));
745 1510f469 2018-09-09 stsp pack = &repo->packs[i];
747 1510f469 2018-09-09 stsp pack->path_packfile = strdup(path_packfile);
748 1510f469 2018-09-09 stsp if (pack->path_packfile == NULL) {
749 1510f469 2018-09-09 stsp err = got_error_from_errno();
753 1510f469 2018-09-09 stsp err = open_packfile(&pack->fd, path_packfile, packidx);
757 1510f469 2018-09-09 stsp err = got_pack_get_packfile_size(&pack->filesize, path_packfile);
761 90636195 2018-09-11 stsp pack->privsep_child = NULL;
763 1510f469 2018-09-09 stsp #ifndef GOT_PACK_NO_MMAP
764 1510f469 2018-09-09 stsp pack->map = mmap(NULL, pack->filesize, PROT_READ, MAP_PRIVATE,
765 1510f469 2018-09-09 stsp pack->fd, 0);
766 1510f469 2018-09-09 stsp if (pack->map == MAP_FAILED)
767 1510f469 2018-09-09 stsp pack->map = NULL; /* fall back to read(2) */
771 1510f469 2018-09-09 stsp if (pack) {
772 1510f469 2018-09-09 stsp free(pack->path_packfile);
773 1510f469 2018-09-09 stsp memset(pack, 0, sizeof(*pack));
775 1510f469 2018-09-09 stsp } else if (packp)
776 1510f469 2018-09-09 stsp *packp = pack;
777 1510f469 2018-09-09 stsp return err;
780 1510f469 2018-09-09 stsp struct got_pack *
781 1510f469 2018-09-09 stsp got_repo_get_cached_pack(struct got_repository *repo, const char *path_packfile)
783 1510f469 2018-09-09 stsp struct got_pack *pack = NULL;
786 1510f469 2018-09-09 stsp for (i = 0; i < nitems(repo->packs); i++) {
787 1510f469 2018-09-09 stsp pack = &repo->packs[i];
788 1510f469 2018-09-09 stsp if (pack->path_packfile == NULL)
790 1510f469 2018-09-09 stsp if (strcmp(pack->path_packfile, path_packfile) == 0)
791 1510f469 2018-09-09 stsp return pack;
794 1510f469 2018-09-09 stsp return NULL;