2 5d56da81 2019-01-13 stsp * Copyright (c) 2018, 2019 Stefan Sperling <stsp@openbsd.org>
4 d71d75ad 2017-11-05 stsp * Permission to use, copy, modify, and distribute this software for any
5 d71d75ad 2017-11-05 stsp * purpose with or without fee is hereby granted, provided that the above
6 d71d75ad 2017-11-05 stsp * copyright notice and this permission notice appear in all copies.
8 d71d75ad 2017-11-05 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 d71d75ad 2017-11-05 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 d71d75ad 2017-11-05 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 d71d75ad 2017-11-05 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 d71d75ad 2017-11-05 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 d71d75ad 2017-11-05 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 d71d75ad 2017-11-05 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 2178c42e 2018-04-22 stsp #include <sys/types.h>
18 0ffeb3c2 2017-11-26 stsp #include <sys/stat.h>
19 8b925c6c 2022-07-16 thomas #include <sys/queue.h>
20 2178c42e 2018-04-22 stsp #include <sys/uio.h>
21 2b0ae357 2022-01-10 thomas #include <sys/mman.h>
23 a1fd68d8 2018-01-12 stsp #include <errno.h>
24 2178c42e 2018-04-22 stsp #include <fcntl.h>
25 d71d75ad 2017-11-05 stsp #include <stdio.h>
26 ab9a70b2 2017-11-06 stsp #include <stdlib.h>
27 ab9a70b2 2017-11-06 stsp #include <string.h>
28 b61ceafc 2022-10-13 thomas #include <sha1.h>
29 81a12da5 2020-09-09 naddy #include <unistd.h>
30 ab9a70b2 2017-11-06 stsp #include <zlib.h>
31 e40622f4 2020-07-23 stsp #include <libgen.h>
32 ab9a70b2 2017-11-06 stsp #include <limits.h>
33 b61ceafc 2022-10-13 thomas #include <imsg.h>
35 dd038bc6 2021-09-21 thomas.ad #include "got_compat.h"
37 ab9a70b2 2017-11-06 stsp #include "got_error.h"
38 d71d75ad 2017-11-05 stsp #include "got_object.h"
39 ab9a70b2 2017-11-06 stsp #include "got_repository.h"
40 511a516b 2018-05-19 stsp #include "got_opentemp.h"
41 324d37e7 2019-05-11 stsp #include "got_path.h"
43 718b3ab0 2018-03-17 stsp #include "got_lib_sha1.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 6bef87be 2018-09-11 stsp #include "got_lib_object_idcache.h"
48 6bef87be 2018-09-11 stsp #include "got_lib_object_cache.h"
49 ad242220 2018-09-08 stsp #include "got_lib_object_parse.h"
50 15a94983 2018-12-23 stsp #include "got_lib_pack.h"
51 7bb0daa1 2018-06-21 stsp #include "got_lib_repository.h"
54 ab9a70b2 2017-11-06 stsp #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
57 63915ee5 2022-06-23 thomas #ifndef nitems
58 63915ee5 2022-06-23 thomas #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
61 3235492e 2018-04-01 stsp struct got_object_id *
62 3235492e 2018-04-01 stsp got_object_get_id(struct got_object *obj)
64 6402fb3c 2018-09-15 stsp return &obj->id;
67 bacc9935 2018-05-20 stsp const struct got_error *
68 bacc9935 2018-05-20 stsp got_object_get_id_str(char **outbuf, struct got_object *obj)
70 bacc9935 2018-05-20 stsp return got_object_id_str(outbuf, &obj->id);
73 15a94983 2018-12-23 stsp const struct got_error *
74 15a94983 2018-12-23 stsp got_object_get_type(int *type, struct got_repository *repo,
75 15a94983 2018-12-23 stsp struct got_object_id *id)
77 15a94983 2018-12-23 stsp const struct got_error *err = NULL;
78 15a94983 2018-12-23 stsp struct got_object *obj;
80 15a94983 2018-12-23 stsp err = got_object_open(&obj, repo, id);
84 b107e67f 2018-01-19 stsp switch (obj->type) {
85 a1fd68d8 2018-01-12 stsp case GOT_OBJ_TYPE_COMMIT:
86 a1fd68d8 2018-01-12 stsp case GOT_OBJ_TYPE_TREE:
87 a1fd68d8 2018-01-12 stsp case GOT_OBJ_TYPE_BLOB:
88 b107e67f 2018-01-19 stsp case GOT_OBJ_TYPE_TAG:
89 15a94983 2018-12-23 stsp *type = obj->type;
92 15a94983 2018-12-23 stsp err = got_error(GOT_ERR_OBJ_TYPE);
96 15a94983 2018-12-23 stsp got_object_close(obj);
100 90bdb554 2019-04-11 stsp const struct got_error *
101 90bdb554 2019-04-11 stsp got_object_get_path(char **path, struct got_object_id *id,
102 90bdb554 2019-04-11 stsp struct got_repository *repo)
104 ab9a70b2 2017-11-06 stsp const struct got_error *err = NULL;
105 7a132809 2018-07-23 stsp char *hex = NULL;
106 41d2888b 2019-08-11 stsp char *path_objects;
108 e6b1056e 2018-04-22 stsp *path = NULL;
110 41d2888b 2019-08-11 stsp path_objects = got_repo_get_path_objects(repo);
111 ab9a70b2 2017-11-06 stsp if (path_objects == NULL)
112 638f9024 2019-05-13 stsp return got_error_from_errno("got_repo_get_path_objects");
114 ef0981d5 2018-02-12 stsp err = got_object_id_str(&hex, id);
118 d1cda826 2017-11-06 stsp if (asprintf(path, "%s/%.2x/%s", path_objects,
119 d1cda826 2017-11-06 stsp id->sha1[0], hex + 2) == -1)
120 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
124 d1cda826 2017-11-06 stsp free(path_objects);
125 d1cda826 2017-11-06 stsp return err;
128 762d73f4 2021-04-10 stsp const struct got_error *
129 762d73f4 2021-04-10 stsp got_object_open_loose_fd(int *fd, struct got_object_id *id,
130 4796fb13 2018-12-23 stsp struct got_repository *repo)
132 d1cda826 2017-11-06 stsp const struct got_error *err = NULL;
133 a1fd68d8 2018-01-12 stsp char *path;
135 90bdb554 2019-04-11 stsp err = got_object_get_path(&path, id, repo);
137 d1cda826 2017-11-06 stsp return err;
138 06340621 2021-12-31 thomas *fd = open(path, O_RDONLY | O_NOFOLLOW | O_CLOEXEC);
139 d5003b79 2018-04-22 stsp if (*fd == -1) {
140 e82b1d81 2019-07-27 stsp err = got_error_from_errno2("open", path);
144 4558fcd4 2018-01-14 stsp free(path);
145 2090a03d 2018-09-09 stsp return err;
148 b3d68e7f 2021-07-03 stsp const struct got_error *
149 6dfa2fd3 2018-02-12 stsp got_object_open_by_id_str(struct got_object **obj, struct got_repository *repo,
150 6dfa2fd3 2018-02-12 stsp const char *id_str)
152 6dfa2fd3 2018-02-12 stsp struct got_object_id id;
154 6dfa2fd3 2018-02-12 stsp if (!got_parse_sha1_digest(id.sha1, id_str))
155 6dd1ece6 2019-11-10 stsp return got_error_path(id_str, GOT_ERR_BAD_OBJ_ID_STR);
157 6dfa2fd3 2018-02-12 stsp return got_object_open(obj, repo, &id);
160 15a94983 2018-12-23 stsp const struct got_error *
161 15a94983 2018-12-23 stsp got_object_resolve_id_str(struct got_object_id **id,
162 15a94983 2018-12-23 stsp struct got_repository *repo, const char *id_str)
164 15a94983 2018-12-23 stsp const struct got_error *err = NULL;
165 15a94983 2018-12-23 stsp struct got_object *obj;
167 15a94983 2018-12-23 stsp err = got_object_open_by_id_str(&obj, repo, id_str);
169 15a94983 2018-12-23 stsp return err;
171 15a94983 2018-12-23 stsp *id = got_object_id_dup(got_object_get_id(obj));
172 15a94983 2018-12-23 stsp got_object_close(obj);
173 15a94983 2018-12-23 stsp if (*id == NULL)
174 638f9024 2019-05-13 stsp return got_error_from_errno("got_object_id_dup");
176 15a94983 2018-12-23 stsp return NULL;
179 e32baab7 2018-11-05 stsp const struct got_error *
180 dbc6a6b6 2018-07-12 stsp got_object_qid_alloc(struct got_object_qid **qid, struct got_object_id *id)
182 dbc6a6b6 2018-07-12 stsp *qid = calloc(1, sizeof(**qid));
183 dbc6a6b6 2018-07-12 stsp if (*qid == NULL)
184 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
186 ec242592 2022-04-22 thomas memcpy(&(*qid)->id, id, sizeof((*qid)->id));
187 9ca9aafb 2021-06-18 stsp return NULL;
190 9ca9aafb 2021-06-18 stsp const struct got_error *
191 9ca9aafb 2021-06-18 stsp got_object_id_queue_copy(const struct got_object_id_queue *src,
192 9ca9aafb 2021-06-18 stsp struct got_object_id_queue *dest)
194 9ca9aafb 2021-06-18 stsp const struct got_error *err;
195 9ca9aafb 2021-06-18 stsp struct got_object_qid *qid;
197 dbdddfee 2021-06-23 naddy STAILQ_FOREACH(qid, src, entry) {
198 9ca9aafb 2021-06-18 stsp struct got_object_qid *new;
200 9ca9aafb 2021-06-18 stsp * Deep-copy the object ID only. Let the caller deal
201 9ca9aafb 2021-06-18 stsp * with setting up the new->data pointer if needed.
203 b6b86fd1 2022-08-30 thomas err = got_object_qid_alloc(&new, &qid->id);
205 9ca9aafb 2021-06-18 stsp got_object_id_queue_free(dest);
206 9ca9aafb 2021-06-18 stsp return err;
208 dbdddfee 2021-06-23 naddy STAILQ_INSERT_TAIL(dest, new, entry);
211 dbc6a6b6 2018-07-12 stsp return NULL;
215 56e0773d 2019-11-28 stsp got_object_tree_get_nentries(struct got_tree_object *tree)
217 56e0773d 2019-11-28 stsp return tree->nentries;
220 56e0773d 2019-11-28 stsp struct got_tree_entry *
221 56e0773d 2019-11-28 stsp got_object_tree_get_first_entry(struct got_tree_object *tree)
223 56e0773d 2019-11-28 stsp return got_object_tree_get_entry(tree, 0);
226 56e0773d 2019-11-28 stsp struct got_tree_entry *
227 56e0773d 2019-11-28 stsp got_object_tree_get_last_entry(struct got_tree_object *tree)
229 56e0773d 2019-11-28 stsp return got_object_tree_get_entry(tree, tree->nentries - 1);
232 56e0773d 2019-11-28 stsp struct got_tree_entry *
233 56e0773d 2019-11-28 stsp got_object_tree_get_entry(struct got_tree_object *tree, int i)
235 56e0773d 2019-11-28 stsp if (i < 0 || i >= tree->nentries)
236 56e0773d 2019-11-28 stsp return NULL;
237 56e0773d 2019-11-28 stsp return &tree->entries[i];
241 56e0773d 2019-11-28 stsp got_tree_entry_get_mode(struct got_tree_entry *te)
243 56e0773d 2019-11-28 stsp return te->mode;
246 56e0773d 2019-11-28 stsp const char *
247 56e0773d 2019-11-28 stsp got_tree_entry_get_name(struct got_tree_entry *te)
249 56e0773d 2019-11-28 stsp return &te->name[0];
252 56e0773d 2019-11-28 stsp struct got_object_id *
253 56e0773d 2019-11-28 stsp got_tree_entry_get_id(struct got_tree_entry *te)
255 56e0773d 2019-11-28 stsp return &te->id;
258 0d6c6ee3 2020-05-20 stsp const struct got_error *
259 af57b12a 2020-07-23 stsp got_object_blob_read_to_str(char **s, struct got_blob_object *blob)
261 0d6c6ee3 2020-05-20 stsp const struct got_error *err = NULL;
262 32596e16 2020-07-23 stsp size_t len, totlen, hdrlen, offset;
266 659dc16e 2020-07-23 stsp hdrlen = got_object_blob_get_hdrlen(blob);
267 659dc16e 2020-07-23 stsp totlen = 0;
268 32596e16 2020-07-23 stsp offset = 0;
272 659dc16e 2020-07-23 stsp err = got_object_blob_read_block(&len, blob);
274 af57b12a 2020-07-23 stsp return err;
276 659dc16e 2020-07-23 stsp if (len == 0)
279 659dc16e 2020-07-23 stsp totlen += len - hdrlen;
280 af57b12a 2020-07-23 stsp p = realloc(*s, totlen + 1);
281 659dc16e 2020-07-23 stsp if (p == NULL) {
282 659dc16e 2020-07-23 stsp err = got_error_from_errno("realloc");
285 af57b12a 2020-07-23 stsp return err;
288 659dc16e 2020-07-23 stsp /* Skip blob object header first time around. */
289 af57b12a 2020-07-23 stsp memcpy(*s + offset,
290 f8f7c882 2020-07-23 stsp got_object_blob_get_read_buf(blob) + hdrlen, len - hdrlen);
291 659dc16e 2020-07-23 stsp hdrlen = 0;
292 32596e16 2020-07-23 stsp offset = totlen;
293 659dc16e 2020-07-23 stsp } while (len > 0);
295 af57b12a 2020-07-23 stsp (*s)[totlen] = '\0';
296 af57b12a 2020-07-23 stsp return NULL;
299 af57b12a 2020-07-23 stsp const struct got_error *
300 af57b12a 2020-07-23 stsp got_tree_entry_get_symlink_target(char **link_target, struct got_tree_entry *te,
301 af57b12a 2020-07-23 stsp struct got_repository *repo)
303 af57b12a 2020-07-23 stsp const struct got_error *err = NULL;
304 af57b12a 2020-07-23 stsp struct got_blob_object *blob = NULL;
305 f4ae6ddb 2022-07-01 thomas int fd = -1;
307 af57b12a 2020-07-23 stsp *link_target = NULL;
309 af57b12a 2020-07-23 stsp if (!got_object_tree_entry_is_symlink(te))
310 af57b12a 2020-07-23 stsp return got_error(GOT_ERR_TREE_ENTRY_TYPE);
312 f4ae6ddb 2022-07-01 thomas fd = got_opentempfd();
313 f4ae6ddb 2022-07-01 thomas if (fd == -1) {
314 f4ae6ddb 2022-07-01 thomas err = got_error_from_errno("got_opentempfd");
315 f4ae6ddb 2022-07-01 thomas goto done;
318 f4ae6ddb 2022-07-01 thomas err = got_object_open_as_blob(&blob, repo,
319 f4ae6ddb 2022-07-01 thomas got_tree_entry_get_id(te), PATH_MAX, fd);
321 f4ae6ddb 2022-07-01 thomas goto done;
323 af57b12a 2020-07-23 stsp err = got_object_blob_read_to_str(link_target, blob);
325 f4ae6ddb 2022-07-01 thomas if (fd != -1 && close(fd) == -1 && err == NULL)
326 f4ae6ddb 2022-07-01 thomas err = got_error_from_errno("close");
327 f4ae6ddb 2022-07-01 thomas if (blob)
328 f4ae6ddb 2022-07-01 thomas got_object_blob_close(blob);
330 659dc16e 2020-07-23 stsp free(*link_target);
331 659dc16e 2020-07-23 stsp *link_target = NULL;
333 0d6c6ee3 2020-05-20 stsp return err;
337 56e0773d 2019-11-28 stsp got_tree_entry_get_index(struct got_tree_entry *te)
339 56e0773d 2019-11-28 stsp return te->idx;
342 56e0773d 2019-11-28 stsp struct got_tree_entry *
343 56e0773d 2019-11-28 stsp got_tree_entry_get_next(struct got_tree_object *tree,
344 56e0773d 2019-11-28 stsp struct got_tree_entry *te)
346 56e0773d 2019-11-28 stsp return got_object_tree_get_entry(tree, te->idx + 1);
349 56e0773d 2019-11-28 stsp struct got_tree_entry *
350 56e0773d 2019-11-28 stsp got_tree_entry_get_prev(struct got_tree_object *tree,
351 56e0773d 2019-11-28 stsp struct got_tree_entry *te)
353 56e0773d 2019-11-28 stsp return got_object_tree_get_entry(tree, te->idx - 1);
356 a19581a2 2018-06-21 stsp const struct got_error *
357 68482ea3 2017-11-27 stsp got_object_blob_close(struct got_blob_object *blob)
359 fb43ecf1 2019-02-11 stsp const struct got_error *err = NULL;
360 15c8b0e6 2018-04-24 stsp free(blob->read_buf);
361 56b63ca4 2021-01-22 stsp if (blob->f && fclose(blob->f) == EOF)
362 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
363 ac544f8c 2019-01-13 stsp free(blob->data);
364 68482ea3 2017-11-27 stsp free(blob);
365 fb43ecf1 2019-02-11 stsp return err;
369 8ba819a3 2020-07-23 stsp got_object_blob_rewind(struct got_blob_object *blob)
371 8ba819a3 2020-07-23 stsp if (blob->f)
372 8ba819a3 2020-07-23 stsp rewind(blob->f);
376 f934cf2c 2018-02-12 stsp got_object_blob_id_str(struct got_blob_object *blob, char *buf, size_t size)
378 f934cf2c 2018-02-12 stsp return got_sha1_digest_to_str(blob->id.sha1, buf, size);
382 f934cf2c 2018-02-12 stsp got_object_blob_get_hdrlen(struct got_blob_object *blob)
384 f934cf2c 2018-02-12 stsp return blob->hdrlen;
387 f934cf2c 2018-02-12 stsp const uint8_t *
388 f934cf2c 2018-02-12 stsp got_object_blob_get_read_buf(struct got_blob_object *blob)
390 f934cf2c 2018-02-12 stsp return blob->read_buf;
393 68482ea3 2017-11-27 stsp const struct got_error *
394 eb651edf 2018-02-11 stsp got_object_blob_read_block(size_t *outlenp, struct got_blob_object *blob)
398 eb651edf 2018-02-11 stsp n = fread(blob->read_buf, 1, blob->blocksize, blob->f);
399 eb651edf 2018-02-11 stsp if (n == 0 && ferror(blob->f))
400 eb651edf 2018-02-11 stsp return got_ferror(blob->f, GOT_ERR_IO);
401 eb651edf 2018-02-11 stsp *outlenp = n;
402 35e9ba5d 2018-06-21 stsp return NULL;
405 35e9ba5d 2018-06-21 stsp const struct got_error *
406 be659d10 2020-11-18 stsp got_object_blob_dump_to_file(off_t *filesize, int *nlines,
407 6c4c42e0 2019-06-24 stsp off_t **line_offsets, FILE *outfile, struct got_blob_object *blob)
409 35e9ba5d 2018-06-21 stsp const struct got_error *err = NULL;
410 b6752625 2018-12-24 stsp size_t n, len, hdrlen;
411 84451b3e 2018-07-10 stsp const uint8_t *buf;
413 c33ebc60 2020-11-18 stsp const int alloc_chunksz = 512;
414 c33ebc60 2020-11-18 stsp size_t nalloc = 0;
415 f595d9bd 2019-08-14 stsp off_t off = 0, total_len = 0;
417 6c4c42e0 2019-06-24 stsp if (line_offsets)
418 6c4c42e0 2019-06-24 stsp *line_offsets = NULL;
419 f595d9bd 2019-08-14 stsp if (filesize)
420 f595d9bd 2019-08-14 stsp *filesize = 0;
421 84451b3e 2018-07-10 stsp if (nlines)
422 84451b3e 2018-07-10 stsp *nlines = 0;
424 35e9ba5d 2018-06-21 stsp hdrlen = got_object_blob_get_hdrlen(blob);
426 35e9ba5d 2018-06-21 stsp err = got_object_blob_read_block(&len, blob);
428 35e9ba5d 2018-06-21 stsp return err;
429 35e9ba5d 2018-06-21 stsp if (len == 0)
431 84451b3e 2018-07-10 stsp buf = got_object_blob_get_read_buf(blob);
432 b02560ec 2019-08-19 stsp i = hdrlen;
433 f1cbc3bc 2020-11-18 stsp if (nlines) {
434 f1cbc3bc 2020-11-18 stsp if (line_offsets && *line_offsets == NULL) {
435 78695fb7 2019-08-12 stsp /* Have some data but perhaps no '\n'. */
436 78695fb7 2019-08-12 stsp *nlines = 1;
437 c33ebc60 2020-11-18 stsp nalloc = alloc_chunksz;
438 c33ebc60 2020-11-18 stsp *line_offsets = calloc(nalloc,
439 c33ebc60 2020-11-18 stsp sizeof(**line_offsets));
440 78695fb7 2019-08-12 stsp if (*line_offsets == NULL)
441 845785d4 2020-02-02 tracey return got_error_from_errno("calloc");
443 b02560ec 2019-08-19 stsp /* Skip forward over end of first line. */
444 b02560ec 2019-08-19 stsp while (i < len) {
445 b02560ec 2019-08-19 stsp if (buf[i] == '\n')
450 b02560ec 2019-08-19 stsp /* Scan '\n' offsets in remaining chunk of data. */
451 b02560ec 2019-08-19 stsp while (i < len) {
452 b02560ec 2019-08-19 stsp if (buf[i] != '\n') {
456 f595d9bd 2019-08-14 stsp (*nlines)++;
457 c33ebc60 2020-11-18 stsp if (line_offsets && nalloc < *nlines) {
458 c33ebc60 2020-11-18 stsp size_t n = *nlines + alloc_chunksz;
459 78695fb7 2019-08-12 stsp off_t *o = recallocarray(*line_offsets,
460 c33ebc60 2020-11-18 stsp nalloc, n, sizeof(**line_offsets));
461 78695fb7 2019-08-12 stsp if (o == NULL) {
462 78695fb7 2019-08-12 stsp free(*line_offsets);
463 78695fb7 2019-08-12 stsp *line_offsets = NULL;
464 78695fb7 2019-08-12 stsp return got_error_from_errno(
465 78695fb7 2019-08-12 stsp "recallocarray");
467 78695fb7 2019-08-12 stsp *line_offsets = o;
468 c33ebc60 2020-11-18 stsp nalloc = n;
470 f1cbc3bc 2020-11-18 stsp if (line_offsets) {
471 f1cbc3bc 2020-11-18 stsp off = total_len + i - hdrlen + 1;
472 f1cbc3bc 2020-11-18 stsp (*line_offsets)[*nlines - 1] = off;
477 35e9ba5d 2018-06-21 stsp /* Skip blob object header first time around. */
478 454a6b59 2018-12-24 stsp n = fwrite(buf + hdrlen, 1, len - hdrlen, outfile);
479 b6752625 2018-12-24 stsp if (n != len - hdrlen)
480 b6752625 2018-12-24 stsp return got_ferror(outfile, GOT_ERR_IO);
481 f595d9bd 2019-08-14 stsp total_len += len - hdrlen;
482 35e9ba5d 2018-06-21 stsp hdrlen = 0;
483 35e9ba5d 2018-06-21 stsp } while (len != 0);
485 cbe7f848 2019-02-11 stsp if (fflush(outfile) != 0)
486 638f9024 2019-05-13 stsp return got_error_from_errno("fflush");
487 35e9ba5d 2018-06-21 stsp rewind(outfile);
489 f595d9bd 2019-08-14 stsp if (filesize)
490 f595d9bd 2019-08-14 stsp *filesize = total_len;
492 776d4d29 2018-06-17 stsp return NULL;
495 d24820bf 2019-08-11 stsp const char *
496 d24820bf 2019-08-11 stsp got_object_tag_get_name(struct got_tag_object *tag)
498 d24820bf 2019-08-11 stsp return tag->tag;
502 0bd18d37 2019-02-01 stsp got_object_tag_get_object_type(struct got_tag_object *tag)
504 0bd18d37 2019-02-01 stsp return tag->obj_type;
507 0bd18d37 2019-02-01 stsp struct got_object_id *
508 0bd18d37 2019-02-01 stsp got_object_tag_get_object_id(struct got_tag_object *tag)
510 0bd18d37 2019-02-01 stsp return &tag->id;
514 01073a5d 2019-08-22 stsp got_object_tag_get_tagger_time(struct got_tag_object *tag)
516 01073a5d 2019-08-22 stsp return tag->tagger_time;
520 01073a5d 2019-08-22 stsp got_object_tag_get_tagger_gmtoff(struct got_tag_object *tag)
522 01073a5d 2019-08-22 stsp return tag->tagger_gmtoff;
525 01073a5d 2019-08-22 stsp const char *
526 01073a5d 2019-08-22 stsp got_object_tag_get_tagger(struct got_tag_object *tag)
528 01073a5d 2019-08-22 stsp return tag->tagger;
531 01073a5d 2019-08-22 stsp const char *
532 01073a5d 2019-08-22 stsp got_object_tag_get_message(struct got_tag_object *tag)
534 01073a5d 2019-08-22 stsp return tag->tagmsg;
537 776d4d29 2018-06-17 stsp static struct got_tree_entry *
538 65a9bbe9 2018-09-15 stsp find_entry_by_name(struct got_tree_object *tree, const char *name, size_t len)
542 63da309a 2018-11-07 stsp /* Note that tree entries are sorted in strncmp() order. */
543 56e0773d 2019-11-28 stsp for (i = 0; i < tree->nentries; i++) {
544 56e0773d 2019-11-28 stsp struct got_tree_entry *te = &tree->entries[i];
545 63da309a 2018-11-07 stsp int cmp = strncmp(te->name, name, len);
546 63da309a 2018-11-07 stsp if (cmp < 0)
548 63da309a 2018-11-07 stsp if (cmp > 0)
550 63da309a 2018-11-07 stsp if (te->name[len] == '\0')
553 eb651edf 2018-02-11 stsp return NULL;
556 56e0773d 2019-11-28 stsp struct got_tree_entry *
557 a129376b 2019-03-28 stsp got_object_tree_find_entry(struct got_tree_object *tree, const char *name)
559 a129376b 2019-03-28 stsp return find_entry_by_name(tree, name, strlen(name));
562 776d4d29 2018-06-17 stsp const struct got_error *
563 cc8021af 2021-10-12 thomas got_object_tree_find_path(struct got_object_id **id, mode_t *mode,
564 cc8021af 2021-10-12 thomas struct got_repository *repo, struct got_tree_object *tree,
565 cc8021af 2021-10-12 thomas const char *path)
567 776d4d29 2018-06-17 stsp const struct got_error *err = NULL;
568 cc8021af 2021-10-12 thomas struct got_tree_object *subtree = NULL;
569 db37e2c0 2018-06-21 stsp struct got_tree_entry *te = NULL;
570 65a9bbe9 2018-09-15 stsp const char *seg, *s;
571 b7cd37e5 2018-11-18 stsp size_t seglen;
573 27d434c2 2018-09-15 stsp *id = NULL;
576 5e54fb30 2019-05-31 stsp while (s[0] == '/')
579 65a9bbe9 2018-09-15 stsp seglen = 0;
580 cc8021af 2021-10-12 thomas subtree = tree;
581 b7cd37e5 2018-11-18 stsp while (*s) {
582 776d4d29 2018-06-17 stsp struct got_tree_object *next_tree;
584 776d4d29 2018-06-17 stsp if (*s != '/') {
591 cc8021af 2021-10-12 thomas te = find_entry_by_name(subtree, seg, seglen);
592 db37e2c0 2018-06-21 stsp if (te == NULL) {
593 b66cd6f3 2020-07-31 stsp err = got_error_path(path, GOT_ERR_NO_TREE_ENTRY);
597 b7cd37e5 2018-11-18 stsp if (*s == '\0')
600 776d4d29 2018-06-17 stsp seg = s + 1;
601 65a9bbe9 2018-09-15 stsp seglen = 0;
604 776d4d29 2018-06-17 stsp err = got_object_open_as_tree(&next_tree, repo,
609 cc8021af 2021-10-12 thomas if (subtree != tree)
610 cc8021af 2021-10-12 thomas got_object_tree_close(subtree);
611 cc8021af 2021-10-12 thomas subtree = next_tree;
616 56e0773d 2019-11-28 stsp *id = got_object_id_dup(&te->id);
617 27d434c2 2018-09-15 stsp if (*id == NULL)
618 638f9024 2019-05-13 stsp return got_error_from_errno("got_object_id_dup");
619 cc8021af 2021-10-12 thomas if (mode)
620 cc8021af 2021-10-12 thomas *mode = te->mode;
622 b66cd6f3 2020-07-31 stsp err = got_error_path(path, GOT_ERR_NO_TREE_ENTRY);
624 cc8021af 2021-10-12 thomas if (subtree && subtree != tree)
625 cc8021af 2021-10-12 thomas got_object_tree_close(subtree);
626 cc8021af 2021-10-12 thomas return err;
629 cc8021af 2021-10-12 thomas const struct got_error *
630 cc8021af 2021-10-12 thomas got_object_id_by_path(struct got_object_id **id, struct got_repository *repo,
631 945f9229 2022-04-16 thomas struct got_commit_object *commit, const char *path)
633 cc8021af 2021-10-12 thomas const struct got_error *err = NULL;
634 cc8021af 2021-10-12 thomas struct got_tree_object *tree = NULL;
636 cc8021af 2021-10-12 thomas *id = NULL;
638 cc8021af 2021-10-12 thomas /* Handle opening of root of commit's tree. */
639 cc8021af 2021-10-12 thomas if (got_path_is_root_dir(path)) {
640 cc8021af 2021-10-12 thomas *id = got_object_id_dup(commit->tree_id);
641 cc8021af 2021-10-12 thomas if (*id == NULL)
642 cc8021af 2021-10-12 thomas err = got_error_from_errno("got_object_id_dup");
644 cc8021af 2021-10-12 thomas err = got_object_open_as_tree(&tree, repo, commit->tree_id);
646 cc8021af 2021-10-12 thomas goto done;
647 cc8021af 2021-10-12 thomas err = got_object_tree_find_path(id, NULL, repo, tree, path);
651 776d4d29 2018-06-17 stsp got_object_tree_close(tree);
652 776d4d29 2018-06-17 stsp return err;
656 ac5f2b26 2020-05-05 stsp * Normalize file mode bits to avoid false positive tree entry differences
657 ac5f2b26 2020-05-05 stsp * in case tree entries have unexpected mode bits set.
659 ac5f2b26 2020-05-05 stsp static mode_t
660 ac5f2b26 2020-05-05 stsp normalize_mode_for_comparison(mode_t mode)
663 ac5f2b26 2020-05-05 stsp * For directories, the only relevant bit is the IFDIR bit.
664 ac5f2b26 2020-05-05 stsp * This allows us to detect paths changing from a directory
665 ac5f2b26 2020-05-05 stsp * to a file and vice versa.
667 ac5f2b26 2020-05-05 stsp if (S_ISDIR(mode))
668 ac5f2b26 2020-05-05 stsp return mode & S_IFDIR;
671 40dde666 2020-07-23 stsp * For symlinks, the only relevant bit is the IFLNK bit.
672 40dde666 2020-07-23 stsp * This allows us to detect paths changing from a symlinks
673 40dde666 2020-07-23 stsp * to a file or directory and vice versa.
675 40dde666 2020-07-23 stsp if (S_ISLNK(mode))
676 40dde666 2020-07-23 stsp return mode & S_IFLNK;
678 ac5f2b26 2020-05-05 stsp /* For files, the only change we care about is the executable bit. */
679 ac5f2b26 2020-05-05 stsp return mode & S_IXUSR;
682 07862c20 2018-09-15 stsp const struct got_error *
683 07862c20 2018-09-15 stsp got_object_tree_path_changed(int *changed,
684 07862c20 2018-09-15 stsp struct got_tree_object *tree01, struct got_tree_object *tree02,
685 07862c20 2018-09-15 stsp const char *path, struct got_repository *repo)
687 07862c20 2018-09-15 stsp const struct got_error *err = NULL;
688 07862c20 2018-09-15 stsp struct got_tree_object *tree1 = NULL, *tree2 = NULL;
689 07862c20 2018-09-15 stsp struct got_tree_entry *te1 = NULL, *te2 = NULL;
690 65a9bbe9 2018-09-15 stsp const char *seg, *s;
691 3b7f9878 2018-11-18 stsp size_t seglen;
693 07862c20 2018-09-15 stsp *changed = 0;
695 07862c20 2018-09-15 stsp /* We not do support comparing the root path. */
696 61a7d79f 2020-02-29 stsp if (got_path_is_root_dir(path))
697 63f810e6 2020-02-29 stsp return got_error_path(path, GOT_ERR_BAD_PATH);
699 07862c20 2018-09-15 stsp tree1 = tree01;
700 07862c20 2018-09-15 stsp tree2 = tree02;
702 61a7d79f 2020-02-29 stsp while (*s == '/')
705 65a9bbe9 2018-09-15 stsp seglen = 0;
706 3b7f9878 2018-11-18 stsp while (*s) {
707 07862c20 2018-09-15 stsp struct got_tree_object *next_tree1, *next_tree2;
708 ac5f2b26 2020-05-05 stsp mode_t mode1, mode2;
710 07862c20 2018-09-15 stsp if (*s != '/') {
717 65a9bbe9 2018-09-15 stsp te1 = find_entry_by_name(tree1, seg, seglen);
718 07862c20 2018-09-15 stsp if (te1 == NULL) {
719 07862c20 2018-09-15 stsp err = got_error(GOT_ERR_NO_OBJ);
724 e8bfb8f3 2020-12-18 stsp te2 = find_entry_by_name(tree2, seg, seglen);
727 e8bfb8f3 2020-12-18 stsp mode1 = normalize_mode_for_comparison(te1->mode);
728 e8bfb8f3 2020-12-18 stsp mode2 = normalize_mode_for_comparison(te2->mode);
729 e8bfb8f3 2020-12-18 stsp if (mode1 != mode2) {
730 e8bfb8f3 2020-12-18 stsp *changed = 1;
734 e8bfb8f3 2020-12-18 stsp if (got_object_id_cmp(&te1->id, &te2->id) == 0) {
735 e8bfb8f3 2020-12-18 stsp *changed = 0;
740 3b7f9878 2018-11-18 stsp if (*s == '\0') { /* final path element */
741 07862c20 2018-09-15 stsp *changed = 1;
745 07862c20 2018-09-15 stsp seg = s + 1;
747 65a9bbe9 2018-09-15 stsp seglen = 0;
749 07862c20 2018-09-15 stsp err = got_object_open_as_tree(&next_tree1, repo,
751 07862c20 2018-09-15 stsp te1 = NULL;
754 a31cea73 2018-09-15 stsp if (tree1 != tree01)
755 a31cea73 2018-09-15 stsp got_object_tree_close(tree1);
756 07862c20 2018-09-15 stsp tree1 = next_tree1;
759 e8bfb8f3 2020-12-18 stsp err = got_object_open_as_tree(&next_tree2, repo,
761 e8bfb8f3 2020-12-18 stsp te2 = NULL;
764 e8bfb8f3 2020-12-18 stsp if (tree2 != tree02)
765 e8bfb8f3 2020-12-18 stsp got_object_tree_close(tree2);
766 e8bfb8f3 2020-12-18 stsp tree2 = next_tree2;
767 e8bfb8f3 2020-12-18 stsp } else if (tree2) {
768 e8bfb8f3 2020-12-18 stsp if (tree2 != tree02)
769 e8bfb8f3 2020-12-18 stsp got_object_tree_close(tree2);
770 e8bfb8f3 2020-12-18 stsp tree2 = NULL;
775 a31cea73 2018-09-15 stsp if (tree1 && tree1 != tree01)
776 07862c20 2018-09-15 stsp got_object_tree_close(tree1);
777 a31cea73 2018-09-15 stsp if (tree2 && tree2 != tree02)
778 07862c20 2018-09-15 stsp got_object_tree_close(tree2);
779 77880158 2018-11-04 stsp return err;
782 ed175427 2019-05-09 stsp const struct got_error *
783 ed175427 2019-05-09 stsp got_object_tree_entry_dup(struct got_tree_entry **new_te,
784 ed175427 2019-05-09 stsp struct got_tree_entry *te)
786 ed175427 2019-05-09 stsp const struct got_error *err = NULL;
788 ed175427 2019-05-09 stsp *new_te = calloc(1, sizeof(**new_te));
789 ed175427 2019-05-09 stsp if (*new_te == NULL)
790 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
792 ed175427 2019-05-09 stsp (*new_te)->mode = te->mode;
793 56e0773d 2019-11-28 stsp memcpy((*new_te)->name, te->name, sizeof((*new_te)->name));
794 56e0773d 2019-11-28 stsp memcpy(&(*new_te)->id, &te->id, sizeof((*new_te)->id));
795 8c4eabf2 2019-05-10 stsp return err;
799 56e0773d 2019-11-28 stsp got_object_tree_entry_is_submodule(struct got_tree_entry *te)
801 63c5ca5d 2019-08-24 stsp return (te->mode & S_IFMT) == (S_IFDIR | S_IFLNK);
805 e40622f4 2020-07-23 stsp got_object_tree_entry_is_symlink(struct got_tree_entry *te)
807 e40622f4 2020-07-23 stsp /* S_IFDIR check avoids confusing symlinks with submodules. */
808 e40622f4 2020-07-23 stsp return ((te->mode & (S_IFDIR | S_IFLNK)) == S_IFLNK);
811 e40622f4 2020-07-23 stsp static const struct got_error *
812 e40622f4 2020-07-23 stsp resolve_symlink(char **link_target, const char *path,
813 945f9229 2022-04-16 thomas struct got_commit_object *commit, struct got_repository *repo)
815 e40622f4 2020-07-23 stsp const struct got_error *err = NULL;
816 dbdd6209 2020-10-19 stsp char buf[PATH_MAX];
817 e40622f4 2020-07-23 stsp char *name, *parent_path = NULL;
818 e40622f4 2020-07-23 stsp struct got_object_id *tree_obj_id = NULL;
819 e40622f4 2020-07-23 stsp struct got_tree_object *tree = NULL;
820 e40622f4 2020-07-23 stsp struct got_tree_entry *te = NULL;
822 e40622f4 2020-07-23 stsp *link_target = NULL;
824 dbdd6209 2020-10-19 stsp if (strlcpy(buf, path, sizeof(buf)) >= sizeof(buf))
825 dbdd6209 2020-10-19 stsp return got_error(GOT_ERR_NO_SPACE);
827 dbdd6209 2020-10-19 stsp name = basename(buf);
828 e40622f4 2020-07-23 stsp if (name == NULL)
829 e40622f4 2020-07-23 stsp return got_error_from_errno2("basename", path);
831 e40622f4 2020-07-23 stsp err = got_path_dirname(&parent_path, path);
833 e40622f4 2020-07-23 stsp return err;
835 945f9229 2022-04-16 thomas err = got_object_id_by_path(&tree_obj_id, repo, commit,
836 e40622f4 2020-07-23 stsp parent_path);
838 e40622f4 2020-07-23 stsp if (err->code == GOT_ERR_NO_TREE_ENTRY) {
839 e40622f4 2020-07-23 stsp /* Display the complete path in error message. */
840 e40622f4 2020-07-23 stsp err = got_error_path(path, err->code);
845 e40622f4 2020-07-23 stsp err = got_object_open_as_tree(&tree, repo, tree_obj_id);
849 e40622f4 2020-07-23 stsp te = got_object_tree_find_entry(tree, name);
850 e40622f4 2020-07-23 stsp if (te == NULL) {
851 e40622f4 2020-07-23 stsp err = got_error_path(path, GOT_ERR_NO_TREE_ENTRY);
855 e40622f4 2020-07-23 stsp if (got_object_tree_entry_is_symlink(te)) {
856 e40622f4 2020-07-23 stsp err = got_tree_entry_get_symlink_target(link_target, te, repo);
859 e40622f4 2020-07-23 stsp if (!got_path_is_absolute(*link_target)) {
860 e40622f4 2020-07-23 stsp char *abspath;
861 e40622f4 2020-07-23 stsp if (asprintf(&abspath, "%s/%s", parent_path,
862 e40622f4 2020-07-23 stsp *link_target) == -1) {
863 e40622f4 2020-07-23 stsp err = got_error_from_errno("asprintf");
866 e40622f4 2020-07-23 stsp free(*link_target);
867 e40622f4 2020-07-23 stsp *link_target = malloc(PATH_MAX);
868 e40622f4 2020-07-23 stsp if (*link_target == NULL) {
869 e40622f4 2020-07-23 stsp err = got_error_from_errno("malloc");
872 e40622f4 2020-07-23 stsp err = got_canonpath(abspath, *link_target, PATH_MAX);
873 e40622f4 2020-07-23 stsp free(abspath);
879 35eabca9 2022-09-03 thomas free(parent_path);
880 e40622f4 2020-07-23 stsp free(tree_obj_id);
882 e40622f4 2020-07-23 stsp got_object_tree_close(tree);
884 e40622f4 2020-07-23 stsp free(*link_target);
885 e40622f4 2020-07-23 stsp *link_target = NULL;
887 e40622f4 2020-07-23 stsp return err;
890 ca6e02ac 2020-01-07 stsp const struct got_error *
891 e40622f4 2020-07-23 stsp got_object_resolve_symlinks(char **link_target, const char *path,
892 945f9229 2022-04-16 thomas struct got_commit_object *commit, struct got_repository *repo)
894 e40622f4 2020-07-23 stsp const struct got_error *err = NULL;
895 e40622f4 2020-07-23 stsp char *next_target = NULL;
896 e40622f4 2020-07-23 stsp int max_recursion = 40; /* matches Git */
898 e40622f4 2020-07-23 stsp *link_target = NULL;
901 e40622f4 2020-07-23 stsp err = resolve_symlink(&next_target,
902 945f9229 2022-04-16 thomas *link_target ? *link_target : path, commit, repo);
905 e40622f4 2020-07-23 stsp if (next_target) {
906 e40622f4 2020-07-23 stsp free(*link_target);
907 e40622f4 2020-07-23 stsp if (--max_recursion == 0) {
908 e40622f4 2020-07-23 stsp err = got_error_path(path, GOT_ERR_RECURSION);
909 e40622f4 2020-07-23 stsp *link_target = NULL;
912 e40622f4 2020-07-23 stsp *link_target = next_target;
914 e40622f4 2020-07-23 stsp } while (next_target);
916 e40622f4 2020-07-23 stsp return err;
920 6f6c25d6 2022-09-18 thomas got_object_commit_retain(struct got_commit_object *commit)
922 7e8004ba 2022-09-11 thomas commit->refcnt++;