2 13b2bc37 2022-10-23 stsp * Copyright (c) 2022 Stefan Sperling <stsp@openbsd.org>
4 13b2bc37 2022-10-23 stsp * Permission to use, copy, modify, and distribute this software for any
5 13b2bc37 2022-10-23 stsp * purpose with or without fee is hereby granted, provided that the above
6 13b2bc37 2022-10-23 stsp * copyright notice and this permission notice appear in all copies.
8 13b2bc37 2022-10-23 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 13b2bc37 2022-10-23 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 13b2bc37 2022-10-23 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 13b2bc37 2022-10-23 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 13b2bc37 2022-10-23 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 13b2bc37 2022-10-23 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 13b2bc37 2022-10-23 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 13b2bc37 2022-10-23 stsp #include <sys/queue.h>
18 13b2bc37 2022-10-23 stsp #include <sys/tree.h>
19 13b2bc37 2022-10-23 stsp #include <sys/stat.h>
21 13b2bc37 2022-10-23 stsp #include <errno.h>
22 13b2bc37 2022-10-23 stsp #include <limits.h>
23 13b2bc37 2022-10-23 stsp #include <sha1.h>
24 13b2bc37 2022-10-23 stsp #include <stdio.h>
25 13b2bc37 2022-10-23 stsp #include <stdlib.h>
26 13b2bc37 2022-10-23 stsp #include <string.h>
27 13b2bc37 2022-10-23 stsp #include <unistd.h>
29 13b2bc37 2022-10-23 stsp #include "got_error.h"
30 13b2bc37 2022-10-23 stsp #include "got_object.h"
31 13b2bc37 2022-10-23 stsp #include "got_repository.h"
32 13b2bc37 2022-10-23 stsp #include "got_path.h"
34 13b2bc37 2022-10-23 stsp #include "got_lib_delta.h"
35 13b2bc37 2022-10-23 stsp #include "got_lib_object.h"
36 13b2bc37 2022-10-23 stsp #include "got_lib_object_cache.h"
37 13b2bc37 2022-10-23 stsp #include "got_lib_object_parse.h"
38 13b2bc37 2022-10-23 stsp #include "got_lib_pack.h"
39 13b2bc37 2022-10-23 stsp #include "got_lib_repository.h"
41 13b2bc37 2022-10-23 stsp const struct got_error *
42 13b2bc37 2022-10-23 stsp got_object_open_packed(struct got_object **obj, struct got_object_id *id,
43 13b2bc37 2022-10-23 stsp struct got_repository *repo)
45 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
46 13b2bc37 2022-10-23 stsp struct got_pack *pack = NULL;
47 13b2bc37 2022-10-23 stsp struct got_packidx *packidx = NULL;
49 13b2bc37 2022-10-23 stsp char *path_packfile;
51 13b2bc37 2022-10-23 stsp err = got_repo_search_packidx(&packidx, &idx, repo, id);
55 13b2bc37 2022-10-23 stsp err = got_packidx_get_packfile_path(&path_packfile,
56 13b2bc37 2022-10-23 stsp packidx->path_packidx);
60 13b2bc37 2022-10-23 stsp pack = got_repo_get_cached_pack(repo, path_packfile);
61 13b2bc37 2022-10-23 stsp if (pack == NULL) {
62 13b2bc37 2022-10-23 stsp err = got_repo_cache_pack(&pack, repo, path_packfile, packidx);
67 13b2bc37 2022-10-23 stsp err = got_packfile_open_object(obj, pack, packidx, idx, id);
70 13b2bc37 2022-10-23 stsp (*obj)->refcnt++;
72 13b2bc37 2022-10-23 stsp err = got_repo_cache_object(repo, id, *obj);
74 13b2bc37 2022-10-23 stsp if (err->code == GOT_ERR_OBJ_EXISTS ||
75 13b2bc37 2022-10-23 stsp err->code == GOT_ERR_OBJ_TOO_LARGE)
79 13b2bc37 2022-10-23 stsp free(path_packfile);
83 13b2bc37 2022-10-23 stsp const struct got_error *
84 13b2bc37 2022-10-23 stsp got_object_open_from_packfile(struct got_object **obj, struct got_object_id *id,
85 13b2bc37 2022-10-23 stsp struct got_pack *pack, struct got_packidx *packidx, int obj_idx,
86 13b2bc37 2022-10-23 stsp struct got_repository *repo)
88 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_NOT_IMPL);
91 13b2bc37 2022-10-23 stsp const struct got_error *
92 13b2bc37 2022-10-23 stsp got_object_read_raw_delta(uint64_t *base_size, uint64_t *result_size,
93 13b2bc37 2022-10-23 stsp off_t *delta_size, off_t *delta_compressed_size, off_t *delta_offset,
94 13b2bc37 2022-10-23 stsp off_t *delta_out_offset, struct got_object_id **base_id, int delta_cache_fd,
95 13b2bc37 2022-10-23 stsp struct got_packidx *packidx, int obj_idx, struct got_object_id *id,
96 13b2bc37 2022-10-23 stsp struct got_repository *repo)
98 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_NOT_IMPL);
101 13b2bc37 2022-10-23 stsp const struct got_error *
102 13b2bc37 2022-10-23 stsp got_object_open(struct got_object **obj, struct got_repository *repo,
103 13b2bc37 2022-10-23 stsp struct got_object_id *id)
105 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
108 13b2bc37 2022-10-23 stsp *obj = got_repo_get_cached_object(repo, id);
109 13b2bc37 2022-10-23 stsp if (*obj != NULL) {
110 13b2bc37 2022-10-23 stsp (*obj)->refcnt++;
111 13b2bc37 2022-10-23 stsp return NULL;
114 13b2bc37 2022-10-23 stsp err = got_object_open_packed(obj, id, repo);
116 13b2bc37 2022-10-23 stsp if (err->code != GOT_ERR_NO_OBJ)
117 13b2bc37 2022-10-23 stsp return err;
119 13b2bc37 2022-10-23 stsp return NULL;
121 13b2bc37 2022-10-23 stsp err = got_object_open_loose_fd(&fd, id, repo);
123 13b2bc37 2022-10-23 stsp if (err->code == GOT_ERR_ERRNO && errno == ENOENT)
124 13b2bc37 2022-10-23 stsp err = got_error_no_obj(id);
125 13b2bc37 2022-10-23 stsp return err;
128 13b2bc37 2022-10-23 stsp err = got_object_read_header(obj, fd);
132 13b2bc37 2022-10-23 stsp memcpy(&(*obj)->id, id, sizeof((*obj)->id));
133 13b2bc37 2022-10-23 stsp (*obj)->refcnt++;
135 13b2bc37 2022-10-23 stsp err = got_repo_cache_object(repo, id, *obj);
137 13b2bc37 2022-10-23 stsp if (err->code == GOT_ERR_OBJ_EXISTS ||
138 13b2bc37 2022-10-23 stsp err->code == GOT_ERR_OBJ_TOO_LARGE)
139 13b2bc37 2022-10-23 stsp err = NULL;
142 13b2bc37 2022-10-23 stsp if (close(fd) == -1 && err == NULL)
143 13b2bc37 2022-10-23 stsp err = got_error_from_errno("close");
144 13b2bc37 2022-10-23 stsp return err;
147 13b2bc37 2022-10-23 stsp static const struct got_error *
148 13b2bc37 2022-10-23 stsp wrap_fd(FILE **f, int wrapped_fd)
150 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
153 13b2bc37 2022-10-23 stsp if (ftruncate(wrapped_fd, 0L) == -1)
154 13b2bc37 2022-10-23 stsp return got_error_from_errno("ftruncate");
156 13b2bc37 2022-10-23 stsp if (lseek(wrapped_fd, 0L, SEEK_SET) == -1)
157 13b2bc37 2022-10-23 stsp return got_error_from_errno("lseek");
159 13b2bc37 2022-10-23 stsp fd = dup(wrapped_fd);
160 13b2bc37 2022-10-23 stsp if (fd == -1)
161 13b2bc37 2022-10-23 stsp return got_error_from_errno("dup");
163 13b2bc37 2022-10-23 stsp *f = fdopen(fd, "w+");
164 13b2bc37 2022-10-23 stsp if (*f == NULL) {
165 13b2bc37 2022-10-23 stsp err = got_error_from_errno("fdopen");
168 13b2bc37 2022-10-23 stsp return err;
171 13b2bc37 2022-10-23 stsp static const struct got_error *
172 13b2bc37 2022-10-23 stsp read_packed_object_raw(uint8_t **outbuf, off_t *size, size_t *hdrlen,
173 13b2bc37 2022-10-23 stsp int outfd, struct got_pack *pack, struct got_packidx *packidx, int idx,
174 13b2bc37 2022-10-23 stsp struct got_object_id *id)
176 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
177 13b2bc37 2022-10-23 stsp uint64_t raw_size = 0;
178 13b2bc37 2022-10-23 stsp struct got_object *obj;
179 13b2bc37 2022-10-23 stsp FILE *outfile = NULL, *basefile = NULL, *accumfile = NULL;
181 13b2bc37 2022-10-23 stsp *outbuf = NULL;
183 13b2bc37 2022-10-23 stsp *hdrlen = 0;
185 13b2bc37 2022-10-23 stsp err = got_packfile_open_object(&obj, pack, packidx, idx, id);
187 13b2bc37 2022-10-23 stsp return err;
189 13b2bc37 2022-10-23 stsp if (obj->flags & GOT_OBJ_FLAG_DELTIFIED) {
190 13b2bc37 2022-10-23 stsp err = got_pack_get_max_delta_object_size(&raw_size, obj, pack);
194 13b2bc37 2022-10-23 stsp raw_size = obj->size;
196 13b2bc37 2022-10-23 stsp if (raw_size <= GOT_DELTA_RESULT_SIZE_CACHED_MAX) {
197 13b2bc37 2022-10-23 stsp size_t len;
198 13b2bc37 2022-10-23 stsp err = got_packfile_extract_object_to_mem(outbuf, &len,
199 13b2bc37 2022-10-23 stsp obj, pack);
202 13b2bc37 2022-10-23 stsp *size = (off_t)len;
205 13b2bc37 2022-10-23 stsp * XXX This uses 3 file extra descriptors for no good reason.
206 13b2bc37 2022-10-23 stsp * We should have got_packfile_extract_object_to_fd().
208 13b2bc37 2022-10-23 stsp err = wrap_fd(&outfile, outfd);
211 13b2bc37 2022-10-23 stsp err = wrap_fd(&basefile, pack->basefd);
214 13b2bc37 2022-10-23 stsp err = wrap_fd(&accumfile, pack->accumfd);
217 13b2bc37 2022-10-23 stsp err = got_packfile_extract_object(pack, obj, outfile, basefile,
218 13b2bc37 2022-10-23 stsp accumfile);
223 13b2bc37 2022-10-23 stsp *hdrlen = obj->hdrlen;
225 13b2bc37 2022-10-23 stsp got_object_close(obj);
226 13b2bc37 2022-10-23 stsp if (outfile && fclose(outfile) == EOF && err == NULL)
227 13b2bc37 2022-10-23 stsp err = got_error_from_errno("fclose");
228 13b2bc37 2022-10-23 stsp if (basefile && fclose(basefile) == EOF && err == NULL)
229 13b2bc37 2022-10-23 stsp err = got_error_from_errno("fclose");
230 13b2bc37 2022-10-23 stsp if (accumfile && fclose(accumfile) == EOF && err == NULL)
231 13b2bc37 2022-10-23 stsp err = got_error_from_errno("fclose");
232 13b2bc37 2022-10-23 stsp return err;
236 13b2bc37 2022-10-23 stsp static void
237 13b2bc37 2022-10-23 stsp put_raw_object_tempfile(struct got_raw_object *obj)
239 13b2bc37 2022-10-23 stsp struct got_repository *repo = obj->close_arg;
241 13b2bc37 2022-10-23 stsp if (obj->tempfile_idx != -1)
242 13b2bc37 2022-10-23 stsp got_repo_temp_fds_put(obj->tempfile_idx, repo);
245 13b2bc37 2022-10-23 stsp /* *outfd must be initialized to -1 by caller */
246 13b2bc37 2022-10-23 stsp const struct got_error *
247 13b2bc37 2022-10-23 stsp got_object_raw_open(struct got_raw_object **obj, int *outfd,
248 13b2bc37 2022-10-23 stsp struct got_repository *repo, struct got_object_id *id)
250 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
251 13b2bc37 2022-10-23 stsp struct got_packidx *packidx = NULL;
252 13b2bc37 2022-10-23 stsp int idx, tempfile_idx = -1;
253 13b2bc37 2022-10-23 stsp uint8_t *outbuf = NULL;
254 13b2bc37 2022-10-23 stsp off_t size = 0;
255 13b2bc37 2022-10-23 stsp size_t hdrlen = 0;
256 13b2bc37 2022-10-23 stsp char *path_packfile = NULL;
258 13b2bc37 2022-10-23 stsp *obj = got_repo_get_cached_raw_object(repo, id);
259 13b2bc37 2022-10-23 stsp if (*obj != NULL) {
260 13b2bc37 2022-10-23 stsp (*obj)->refcnt++;
261 13b2bc37 2022-10-23 stsp return NULL;
264 13b2bc37 2022-10-23 stsp if (*outfd == -1) {
265 13b2bc37 2022-10-23 stsp int tempfd;
267 13b2bc37 2022-10-23 stsp err = got_repo_temp_fds_get(&tempfd, &tempfile_idx, repo);
269 13b2bc37 2022-10-23 stsp return err;
271 13b2bc37 2022-10-23 stsp /* Duplicate tempfile descriptor to allow use of fdopen(3). */
272 13b2bc37 2022-10-23 stsp *outfd = dup(tempfd);
273 13b2bc37 2022-10-23 stsp if (*outfd == -1) {
274 13b2bc37 2022-10-23 stsp got_repo_temp_fds_put(tempfile_idx, repo);
275 13b2bc37 2022-10-23 stsp return got_error_from_errno("dup");
279 13b2bc37 2022-10-23 stsp err = got_repo_search_packidx(&packidx, &idx, repo, id);
280 13b2bc37 2022-10-23 stsp if (err == NULL) {
281 13b2bc37 2022-10-23 stsp struct got_pack *pack = NULL;
283 13b2bc37 2022-10-23 stsp err = got_packidx_get_packfile_path(&path_packfile,
284 13b2bc37 2022-10-23 stsp packidx->path_packidx);
288 13b2bc37 2022-10-23 stsp pack = got_repo_get_cached_pack(repo, path_packfile);
289 13b2bc37 2022-10-23 stsp if (pack == NULL) {
290 13b2bc37 2022-10-23 stsp err = got_repo_cache_pack(&pack, repo, path_packfile,
295 13b2bc37 2022-10-23 stsp err = read_packed_object_raw(&outbuf, &size, &hdrlen,
296 13b2bc37 2022-10-23 stsp *outfd, pack, packidx, idx, id);
299 13b2bc37 2022-10-23 stsp } else if (err->code == GOT_ERR_NO_OBJ) {
302 13b2bc37 2022-10-23 stsp err = got_object_open_loose_fd(&fd, id, repo);
305 13b2bc37 2022-10-23 stsp err = got_object_read_raw(&outbuf, &size, &hdrlen,
306 13b2bc37 2022-10-23 stsp GOT_DELTA_RESULT_SIZE_CACHED_MAX, *outfd, id, fd);
307 13b2bc37 2022-10-23 stsp if (close(fd) == -1 && err == NULL)
308 13b2bc37 2022-10-23 stsp err = got_error_from_errno("close");
313 13b2bc37 2022-10-23 stsp err = got_object_raw_alloc(obj, outbuf, outfd, hdrlen, size);
317 13b2bc37 2022-10-23 stsp err = got_repo_cache_raw_object(repo, id, *obj);
319 13b2bc37 2022-10-23 stsp if (err->code == GOT_ERR_OBJ_EXISTS ||
320 13b2bc37 2022-10-23 stsp err->code == GOT_ERR_OBJ_TOO_LARGE)
321 13b2bc37 2022-10-23 stsp err = NULL;
324 13b2bc37 2022-10-23 stsp free(path_packfile);
326 13b2bc37 2022-10-23 stsp if (*obj) {
327 13b2bc37 2022-10-23 stsp got_object_raw_close(*obj);
328 13b2bc37 2022-10-23 stsp *obj = NULL;
330 13b2bc37 2022-10-23 stsp free(outbuf);
331 13b2bc37 2022-10-23 stsp if (tempfile_idx != -1)
332 13b2bc37 2022-10-23 stsp got_repo_temp_fds_put(tempfile_idx, repo);
334 13b2bc37 2022-10-23 stsp (*obj)->tempfile_idx = tempfile_idx;
335 13b2bc37 2022-10-23 stsp (*obj)->close_cb = put_raw_object_tempfile;
336 13b2bc37 2022-10-23 stsp (*obj)->close_arg = repo;
338 13b2bc37 2022-10-23 stsp return err;
341 13b2bc37 2022-10-23 stsp static const struct got_error *
342 13b2bc37 2022-10-23 stsp open_commit(struct got_commit_object **commit,
343 13b2bc37 2022-10-23 stsp struct got_repository *repo, struct got_object_id *id, int check_cache)
345 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
346 13b2bc37 2022-10-23 stsp struct got_packidx *packidx = NULL;
348 13b2bc37 2022-10-23 stsp char *path_packfile = NULL;
350 13b2bc37 2022-10-23 stsp if (check_cache) {
351 13b2bc37 2022-10-23 stsp *commit = got_repo_get_cached_commit(repo, id);
352 13b2bc37 2022-10-23 stsp if (*commit != NULL) {
353 13b2bc37 2022-10-23 stsp (*commit)->refcnt++;
354 13b2bc37 2022-10-23 stsp return NULL;
357 13b2bc37 2022-10-23 stsp *commit = NULL;
359 13b2bc37 2022-10-23 stsp err = got_repo_search_packidx(&packidx, &idx, repo, id);
360 13b2bc37 2022-10-23 stsp if (err == NULL) {
361 13b2bc37 2022-10-23 stsp struct got_pack *pack = NULL;
362 13b2bc37 2022-10-23 stsp struct got_object *obj;
363 13b2bc37 2022-10-23 stsp uint8_t *buf;
364 13b2bc37 2022-10-23 stsp size_t len;
366 13b2bc37 2022-10-23 stsp err = got_packidx_get_packfile_path(&path_packfile,
367 13b2bc37 2022-10-23 stsp packidx->path_packidx);
369 13b2bc37 2022-10-23 stsp return err;
371 13b2bc37 2022-10-23 stsp pack = got_repo_get_cached_pack(repo, path_packfile);
372 13b2bc37 2022-10-23 stsp if (pack == NULL) {
373 13b2bc37 2022-10-23 stsp err = got_repo_cache_pack(&pack, repo, path_packfile,
378 13b2bc37 2022-10-23 stsp err = got_packfile_open_object(&obj, pack, packidx, idx, id);
381 13b2bc37 2022-10-23 stsp err = got_packfile_extract_object_to_mem(&buf, &len,
382 13b2bc37 2022-10-23 stsp obj, pack);
383 13b2bc37 2022-10-23 stsp got_object_close(obj);
386 13b2bc37 2022-10-23 stsp err = got_object_parse_commit(commit, buf, len);
388 13b2bc37 2022-10-23 stsp } else if (err->code == GOT_ERR_NO_OBJ) {
391 13b2bc37 2022-10-23 stsp err = got_object_open_loose_fd(&fd, id, repo);
393 13b2bc37 2022-10-23 stsp return err;
394 13b2bc37 2022-10-23 stsp err = got_object_read_commit(commit, fd, id, 0);
395 13b2bc37 2022-10-23 stsp if (close(fd) == -1 && err == NULL)
396 13b2bc37 2022-10-23 stsp err = got_error_from_errno("close");
398 13b2bc37 2022-10-23 stsp return err;
401 13b2bc37 2022-10-23 stsp if (err == NULL) {
402 13b2bc37 2022-10-23 stsp (*commit)->refcnt++;
403 13b2bc37 2022-10-23 stsp err = got_repo_cache_commit(repo, id, *commit);
405 13b2bc37 2022-10-23 stsp if (err->code == GOT_ERR_OBJ_EXISTS ||
406 13b2bc37 2022-10-23 stsp err->code == GOT_ERR_OBJ_TOO_LARGE)
407 13b2bc37 2022-10-23 stsp err = NULL;
411 13b2bc37 2022-10-23 stsp free(path_packfile);
412 13b2bc37 2022-10-23 stsp return err;
415 13b2bc37 2022-10-23 stsp const struct got_error *
416 13b2bc37 2022-10-23 stsp got_object_open_as_commit(struct got_commit_object **commit,
417 13b2bc37 2022-10-23 stsp struct got_repository *repo, struct got_object_id *id)
419 13b2bc37 2022-10-23 stsp *commit = got_repo_get_cached_commit(repo, id);
420 13b2bc37 2022-10-23 stsp if (*commit != NULL) {
421 13b2bc37 2022-10-23 stsp (*commit)->refcnt++;
422 13b2bc37 2022-10-23 stsp return NULL;
425 13b2bc37 2022-10-23 stsp return open_commit(commit, repo, id, 0);
428 13b2bc37 2022-10-23 stsp const struct got_error *
429 13b2bc37 2022-10-23 stsp got_object_commit_open(struct got_commit_object **commit,
430 13b2bc37 2022-10-23 stsp struct got_repository *repo, struct got_object *obj)
432 13b2bc37 2022-10-23 stsp return open_commit(commit, repo, got_object_get_id(obj), 1);
435 13b2bc37 2022-10-23 stsp static const struct got_error *
436 13b2bc37 2022-10-23 stsp open_tree(struct got_tree_object **tree,
437 13b2bc37 2022-10-23 stsp struct got_repository *repo, struct got_object_id *id, int check_cache)
439 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
440 13b2bc37 2022-10-23 stsp struct got_packidx *packidx = NULL;
442 13b2bc37 2022-10-23 stsp char *path_packfile = NULL;
443 13b2bc37 2022-10-23 stsp struct got_parsed_tree_entry *entries = NULL;
444 13b2bc37 2022-10-23 stsp size_t nentries = 0, nentries_alloc = 0, i;
445 13b2bc37 2022-10-23 stsp uint8_t *buf = NULL;
447 13b2bc37 2022-10-23 stsp if (check_cache) {
448 13b2bc37 2022-10-23 stsp *tree = got_repo_get_cached_tree(repo, id);
449 13b2bc37 2022-10-23 stsp if (*tree != NULL) {
450 13b2bc37 2022-10-23 stsp (*tree)->refcnt++;
451 13b2bc37 2022-10-23 stsp return NULL;
454 13b2bc37 2022-10-23 stsp *tree = NULL;
456 13b2bc37 2022-10-23 stsp err = got_repo_search_packidx(&packidx, &idx, repo, id);
457 13b2bc37 2022-10-23 stsp if (err == NULL) {
458 13b2bc37 2022-10-23 stsp struct got_pack *pack = NULL;
459 13b2bc37 2022-10-23 stsp struct got_object *obj;
460 13b2bc37 2022-10-23 stsp size_t len;
462 13b2bc37 2022-10-23 stsp err = got_packidx_get_packfile_path(&path_packfile,
463 13b2bc37 2022-10-23 stsp packidx->path_packidx);
465 13b2bc37 2022-10-23 stsp return err;
467 13b2bc37 2022-10-23 stsp pack = got_repo_get_cached_pack(repo, path_packfile);
468 13b2bc37 2022-10-23 stsp if (pack == NULL) {
469 13b2bc37 2022-10-23 stsp err = got_repo_cache_pack(&pack, repo, path_packfile,
474 13b2bc37 2022-10-23 stsp err = got_packfile_open_object(&obj, pack, packidx, idx, id);
477 13b2bc37 2022-10-23 stsp err = got_packfile_extract_object_to_mem(&buf, &len,
478 13b2bc37 2022-10-23 stsp obj, pack);
479 13b2bc37 2022-10-23 stsp got_object_close(obj);
482 13b2bc37 2022-10-23 stsp err = got_object_parse_tree(&entries, &nentries,
483 13b2bc37 2022-10-23 stsp &nentries_alloc, buf, len);
486 13b2bc37 2022-10-23 stsp } else if (err->code == GOT_ERR_NO_OBJ) {
489 13b2bc37 2022-10-23 stsp err = got_object_open_loose_fd(&fd, id, repo);
491 13b2bc37 2022-10-23 stsp return err;
492 13b2bc37 2022-10-23 stsp err = got_object_read_tree(&entries, &nentries,
493 13b2bc37 2022-10-23 stsp &nentries_alloc, &buf, fd, id);
494 13b2bc37 2022-10-23 stsp if (close(fd) == -1 && err == NULL)
495 13b2bc37 2022-10-23 stsp err = got_error_from_errno("close");
501 13b2bc37 2022-10-23 stsp *tree = malloc(sizeof(**tree));
502 13b2bc37 2022-10-23 stsp if (*tree == NULL) {
503 13b2bc37 2022-10-23 stsp err = got_error_from_errno("malloc");
506 13b2bc37 2022-10-23 stsp (*tree)->entries = calloc(nentries, sizeof(struct got_tree_entry));
507 13b2bc37 2022-10-23 stsp if ((*tree)->entries == NULL) {
508 13b2bc37 2022-10-23 stsp err = got_error_from_errno("malloc");
511 13b2bc37 2022-10-23 stsp (*tree)->nentries = nentries;
512 13b2bc37 2022-10-23 stsp (*tree)->refcnt = 0;
514 13b2bc37 2022-10-23 stsp for (i = 0; i < nentries; i++) {
515 13b2bc37 2022-10-23 stsp struct got_parsed_tree_entry *pe = &entries[i];
516 13b2bc37 2022-10-23 stsp struct got_tree_entry *te = &(*tree)->entries[i];
518 13b2bc37 2022-10-23 stsp if (strlcpy(te->name, pe->name,
519 13b2bc37 2022-10-23 stsp sizeof(te->name)) >= sizeof(te->name)) {
520 13b2bc37 2022-10-23 stsp err = got_error(GOT_ERR_NO_SPACE);
523 13b2bc37 2022-10-23 stsp memcpy(te->id.sha1, pe->id, SHA1_DIGEST_LENGTH);
524 13b2bc37 2022-10-23 stsp te->mode = pe->mode;
525 13b2bc37 2022-10-23 stsp te->idx = i;
528 13b2bc37 2022-10-23 stsp free(path_packfile);
529 13b2bc37 2022-10-23 stsp free(entries);
531 13b2bc37 2022-10-23 stsp if (err == NULL) {
532 13b2bc37 2022-10-23 stsp (*tree)->refcnt++;
533 13b2bc37 2022-10-23 stsp err = got_repo_cache_tree(repo, id, *tree);
535 13b2bc37 2022-10-23 stsp if (err->code == GOT_ERR_OBJ_EXISTS ||
536 13b2bc37 2022-10-23 stsp err->code == GOT_ERR_OBJ_TOO_LARGE)
537 13b2bc37 2022-10-23 stsp err = NULL;
542 13b2bc37 2022-10-23 stsp free((*tree)->entries);
543 13b2bc37 2022-10-23 stsp free(*tree);
544 13b2bc37 2022-10-23 stsp *tree = NULL;
546 13b2bc37 2022-10-23 stsp return err;
549 13b2bc37 2022-10-23 stsp const struct got_error *
550 13b2bc37 2022-10-23 stsp got_object_open_as_tree(struct got_tree_object **tree,
551 13b2bc37 2022-10-23 stsp struct got_repository *repo, struct got_object_id *id)
553 13b2bc37 2022-10-23 stsp *tree = got_repo_get_cached_tree(repo, id);
554 13b2bc37 2022-10-23 stsp if (*tree != NULL) {
555 13b2bc37 2022-10-23 stsp (*tree)->refcnt++;
556 13b2bc37 2022-10-23 stsp return NULL;
559 13b2bc37 2022-10-23 stsp return open_tree(tree, repo, id, 0);
562 13b2bc37 2022-10-23 stsp const struct got_error *
563 13b2bc37 2022-10-23 stsp got_object_tree_open(struct got_tree_object **tree,
564 13b2bc37 2022-10-23 stsp struct got_repository *repo, struct got_object *obj)
566 13b2bc37 2022-10-23 stsp return open_tree(tree, repo, got_object_get_id(obj), 1);
569 13b2bc37 2022-10-23 stsp const struct got_error *
570 13b2bc37 2022-10-23 stsp got_object_open_as_blob(struct got_blob_object **blob,
571 13b2bc37 2022-10-23 stsp struct got_repository *repo, struct got_object_id *id, size_t blocksize,
574 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_NOT_IMPL);
577 13b2bc37 2022-10-23 stsp const struct got_error *
578 13b2bc37 2022-10-23 stsp got_object_blob_open(struct got_blob_object **blob,
579 13b2bc37 2022-10-23 stsp struct got_repository *repo, struct got_object *obj, size_t blocksize,
582 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_NOT_IMPL);
585 13b2bc37 2022-10-23 stsp static const struct got_error *
586 13b2bc37 2022-10-23 stsp open_tag(struct got_tag_object **tag, struct got_repository *repo,
587 13b2bc37 2022-10-23 stsp struct got_object_id *id, int check_cache)
589 13b2bc37 2022-10-23 stsp const struct got_error *err = NULL;
590 13b2bc37 2022-10-23 stsp struct got_packidx *packidx = NULL;
592 13b2bc37 2022-10-23 stsp char *path_packfile = NULL;
593 13b2bc37 2022-10-23 stsp struct got_object *obj = NULL;
594 13b2bc37 2022-10-23 stsp int obj_type = GOT_OBJ_TYPE_ANY;
596 13b2bc37 2022-10-23 stsp if (check_cache) {
597 13b2bc37 2022-10-23 stsp *tag = got_repo_get_cached_tag(repo, id);
598 13b2bc37 2022-10-23 stsp if (*tag != NULL) {
599 13b2bc37 2022-10-23 stsp (*tag)->refcnt++;
600 13b2bc37 2022-10-23 stsp return NULL;
603 13b2bc37 2022-10-23 stsp *tag = NULL;
605 13b2bc37 2022-10-23 stsp err = got_repo_search_packidx(&packidx, &idx, repo, id);
606 13b2bc37 2022-10-23 stsp if (err == NULL) {
607 13b2bc37 2022-10-23 stsp struct got_pack *pack = NULL;
608 13b2bc37 2022-10-23 stsp uint8_t *buf = NULL;
609 13b2bc37 2022-10-23 stsp size_t len;
611 13b2bc37 2022-10-23 stsp err = got_packidx_get_packfile_path(&path_packfile,
612 13b2bc37 2022-10-23 stsp packidx->path_packidx);
614 13b2bc37 2022-10-23 stsp return err;
616 13b2bc37 2022-10-23 stsp pack = got_repo_get_cached_pack(repo, path_packfile);
617 13b2bc37 2022-10-23 stsp if (pack == NULL) {
618 13b2bc37 2022-10-23 stsp err = got_repo_cache_pack(&pack, repo, path_packfile,
624 13b2bc37 2022-10-23 stsp /* Beware of "lightweight" tags: Check object type first. */
625 13b2bc37 2022-10-23 stsp err = got_packfile_open_object(&obj, pack, packidx, idx, id);
628 13b2bc37 2022-10-23 stsp obj_type = obj->type;
629 13b2bc37 2022-10-23 stsp if (obj_type != GOT_OBJ_TYPE_TAG) {
630 13b2bc37 2022-10-23 stsp err = got_error(GOT_ERR_OBJ_TYPE);
631 13b2bc37 2022-10-23 stsp got_object_close(obj);
634 13b2bc37 2022-10-23 stsp err = got_packfile_extract_object_to_mem(&buf, &len,
635 13b2bc37 2022-10-23 stsp obj, pack);
636 13b2bc37 2022-10-23 stsp got_object_close(obj);
639 13b2bc37 2022-10-23 stsp err = got_object_parse_tag(tag, buf, len);
641 13b2bc37 2022-10-23 stsp } else if (err->code == GOT_ERR_NO_OBJ) {
644 13b2bc37 2022-10-23 stsp err = got_object_open_loose_fd(&fd, id, repo);
646 13b2bc37 2022-10-23 stsp return err;
647 13b2bc37 2022-10-23 stsp err = got_object_read_header(&obj, fd);
648 13b2bc37 2022-10-23 stsp if (close(fd) == -1 && err == NULL)
649 13b2bc37 2022-10-23 stsp err = got_error_from_errno("close");
651 13b2bc37 2022-10-23 stsp return err;
652 13b2bc37 2022-10-23 stsp obj_type = obj->type;
653 13b2bc37 2022-10-23 stsp got_object_close(obj);
654 13b2bc37 2022-10-23 stsp if (obj_type != GOT_OBJ_TYPE_TAG)
655 13b2bc37 2022-10-23 stsp return got_error(GOT_ERR_OBJ_TYPE);
657 13b2bc37 2022-10-23 stsp err = got_object_open_loose_fd(&fd, id, repo);
659 13b2bc37 2022-10-23 stsp return err;
660 13b2bc37 2022-10-23 stsp err = got_object_read_tag(tag, fd, id, 0);
661 13b2bc37 2022-10-23 stsp if (close(fd) == -1 && err == NULL)
662 13b2bc37 2022-10-23 stsp err = got_error_from_errno("close");
664 13b2bc37 2022-10-23 stsp return err;
667 13b2bc37 2022-10-23 stsp if (err == NULL) {
668 13b2bc37 2022-10-23 stsp (*tag)->refcnt++;
669 13b2bc37 2022-10-23 stsp err = got_repo_cache_tag(repo, id, *tag);
671 13b2bc37 2022-10-23 stsp if (err->code == GOT_ERR_OBJ_EXISTS ||
672 13b2bc37 2022-10-23 stsp err->code == GOT_ERR_OBJ_TOO_LARGE)
673 13b2bc37 2022-10-23 stsp err = NULL;
677 13b2bc37 2022-10-23 stsp free(path_packfile);
678 13b2bc37 2022-10-23 stsp return err;
681 13b2bc37 2022-10-23 stsp const struct got_error *
682 13b2bc37 2022-10-23 stsp got_object_open_as_tag(struct got_tag_object **tag,
683 13b2bc37 2022-10-23 stsp struct got_repository *repo, struct got_object_id *id)
685 13b2bc37 2022-10-23 stsp *tag = got_repo_get_cached_tag(repo, id);
686 13b2bc37 2022-10-23 stsp if (*tag != NULL) {
687 13b2bc37 2022-10-23 stsp (*tag)->refcnt++;
688 13b2bc37 2022-10-23 stsp return NULL;
691 13b2bc37 2022-10-23 stsp return open_tag(tag, repo, id, 0);
694 13b2bc37 2022-10-23 stsp const struct got_error *
695 13b2bc37 2022-10-23 stsp got_object_tag_open(struct got_tag_object **tag,
696 13b2bc37 2022-10-23 stsp struct got_repository *repo, struct got_object *obj)
698 13b2bc37 2022-10-23 stsp return open_tag(tag, repo, got_object_get_id(obj), 1);