2 5d56da81 2019-01-13 stsp * Copyright (c) 2018, 2019 Stefan Sperling <stsp@openbsd.org>
4 c48c4a9c 2018-03-11 stsp * Permission to use, copy, modify, and distribute this software for any
5 c48c4a9c 2018-03-11 stsp * purpose with or without fee is hereby granted, provided that the above
6 c48c4a9c 2018-03-11 stsp * copyright notice and this permission notice appear in all copies.
8 c48c4a9c 2018-03-11 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 c48c4a9c 2018-03-11 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 c48c4a9c 2018-03-11 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 c48c4a9c 2018-03-11 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 c48c4a9c 2018-03-11 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 c48c4a9c 2018-03-11 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 c48c4a9c 2018-03-11 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 c48c4a9c 2018-03-11 stsp #include <sys/stat.h>
19 03df25b3 2019-05-11 stsp #include <errno.h>
20 d1f6d47b 2019-02-04 stsp #include <dirent.h>
21 6fc93f37 2019-12-13 stsp #include <fcntl.h>
22 c48c4a9c 2018-03-11 stsp #include <stdio.h>
23 c48c4a9c 2018-03-11 stsp #include <stdlib.h>
24 c48c4a9c 2018-03-11 stsp #include <string.h>
25 133d2798 2019-01-08 stsp #include <limits.h>
26 6fc93f37 2019-12-13 stsp #include <unistd.h>
28 dd038bc6 2021-09-21 thomas.ad #include "got_compat.h"
30 c48c4a9c 2018-03-11 stsp #include "got_error.h"
31 8da9e5f4 2019-01-12 stsp #include "got_object.h"
32 324d37e7 2019-05-11 stsp #include "got_path.h"
34 718b3ab0 2018-03-17 stsp #include "got_lib_fileindex.h"
35 b25ae4fa 2019-02-04 stsp #include "got_lib_worktree.h"
37 eb983b4b 2019-03-26 stsp /* got_fileindex_entry flags */
38 eb983b4b 2019-03-26 stsp #define GOT_FILEIDX_F_PATH_LEN 0x00000fff
39 83718700 2019-08-03 stsp #define GOT_FILEIDX_F_STAGE 0x0000f000
40 3cd04235 2019-08-03 stsp #define GOT_FILEIDX_F_STAGE_SHIFT 12
41 ddce0520 2019-03-26 stsp #define GOT_FILEIDX_F_NOT_FLUSHED 0x00010000
42 ddce0520 2019-03-26 stsp #define GOT_FILEIDX_F_NO_BLOB 0x00020000
43 ddce0520 2019-03-26 stsp #define GOT_FILEIDX_F_NO_COMMIT 0x00040000
44 2ec1f75b 2019-03-26 stsp #define GOT_FILEIDX_F_NO_FILE_ON_DISK 0x00080000
45 a46b9f33 2020-01-28 stsp #define GOT_FILEIDX_F_REMOVE_ON_FLUSH 0x00100000
46 a769b60b 2021-06-27 stsp #define GOT_FILEIDX_F_SKIPPED 0x00200000
48 133d2798 2019-01-08 stsp struct got_fileindex {
49 133d2798 2019-01-08 stsp struct got_fileindex_tree entries;
50 a46b9f33 2020-01-28 stsp int nentries; /* Does not include entries marked for removal. */
51 133d2798 2019-01-08 stsp #define GOT_FILEIDX_MAX_ENTRIES INT_MAX
55 0aeb8099 2020-07-23 stsp got_fileindex_entry_perms_get(struct got_fileindex_entry *ie)
57 4723f050 2020-07-23 stsp return ((ie->mode & GOT_FILEIDX_MODE_PERMS) >>
58 4723f050 2020-07-23 stsp GOT_FILEIDX_MODE_PERMS_SHIFT);
62 cf34e6e7 2020-07-23 stsp fileindex_entry_perms_set(struct got_fileindex_entry *ie, mode_t mode)
64 4723f050 2020-07-23 stsp ie->mode &= ~GOT_FILEIDX_MODE_PERMS;
65 4723f050 2020-07-23 stsp ie->mode |= ((mode << GOT_FILEIDX_MODE_PERMS_SHIFT) &
66 4723f050 2020-07-23 stsp GOT_FILEIDX_MODE_PERMS);
70 26a7fe28 2019-07-27 stsp got_fileindex_perms_to_st(struct got_fileindex_entry *ie)
72 0aeb8099 2020-07-23 stsp mode_t perms = got_fileindex_entry_perms_get(ie);
73 4723f050 2020-07-23 stsp int type = got_fileindex_entry_filetype_get(ie);
74 4723f050 2020-07-23 stsp uint32_t ftype;
76 4723f050 2020-07-23 stsp if (type == GOT_FILEIDX_MODE_REGULAR_FILE ||
77 4723f050 2020-07-23 stsp type == GOT_FILEIDX_MODE_BAD_SYMLINK)
78 4723f050 2020-07-23 stsp ftype = S_IFREG;
80 4723f050 2020-07-23 stsp ftype = S_IFLNK;
82 4723f050 2020-07-23 stsp return (ftype | (perms & (S_IRWXU | S_IRWXG | S_IRWXO)));
85 c48c4a9c 2018-03-11 stsp const struct got_error *
86 3f762da0 2019-08-03 stsp got_fileindex_entry_update(struct got_fileindex_entry *ie,
87 437adc9d 2020-12-10 yzhong int wt_fd, const char *ondisk_path, uint8_t *blob_sha1,
88 437adc9d 2020-12-10 yzhong uint8_t *commit_sha1, int update_timestamps)
90 c48c4a9c 2018-03-11 stsp struct stat sb;
92 437adc9d 2020-12-10 yzhong if (fstatat(wt_fd, ondisk_path, &sb, AT_SYMLINK_NOFOLLOW) != 0) {
93 b15816dd 2019-08-11 stsp if (!((ie->flags & GOT_FILEIDX_F_NO_FILE_ON_DISK) &&
94 b15816dd 2019-08-11 stsp errno == ENOENT))
95 437adc9d 2020-12-10 yzhong return got_error_from_errno2("fstatat", ondisk_path);
96 aa9ad276 2020-07-25 stsp sb.st_mode = GOT_DEFAULT_FILE_MODE;
98 03df25b3 2019-05-11 stsp if (sb.st_mode & S_IFDIR)
99 03df25b3 2019-05-11 stsp return got_error_set_errno(EISDIR, ondisk_path);
100 3f762da0 2019-08-03 stsp ie->flags &= ~GOT_FILEIDX_F_NO_FILE_ON_DISK;
104 3f762da0 2019-08-03 stsp if ((ie->flags & GOT_FILEIDX_F_NO_FILE_ON_DISK) == 0) {
105 13d9040b 2019-03-27 stsp if (update_timestamps) {
106 0823ffc2 2020-09-10 naddy ie->ctime_sec = sb.st_ctim.tv_sec;
107 0823ffc2 2020-09-10 naddy ie->ctime_nsec = sb.st_ctim.tv_nsec;
108 0823ffc2 2020-09-10 naddy ie->mtime_sec = sb.st_mtim.tv_sec;
109 0823ffc2 2020-09-10 naddy ie->mtime_nsec = sb.st_mtim.tv_nsec;
111 3f762da0 2019-08-03 stsp ie->uid = sb.st_uid;
112 3f762da0 2019-08-03 stsp ie->gid = sb.st_gid;
113 3f762da0 2019-08-03 stsp ie->size = (sb.st_size & 0xffffffff);
114 4723f050 2020-07-23 stsp if (S_ISLNK(sb.st_mode)) {
115 4723f050 2020-07-23 stsp got_fileindex_entry_filetype_set(ie,
116 4723f050 2020-07-23 stsp GOT_FILEIDX_MODE_SYMLINK);
117 cf34e6e7 2020-07-23 stsp fileindex_entry_perms_set(ie, 0);
119 4723f050 2020-07-23 stsp got_fileindex_entry_filetype_set(ie,
120 4723f050 2020-07-23 stsp GOT_FILEIDX_MODE_REGULAR_FILE);
121 cf34e6e7 2020-07-23 stsp fileindex_entry_perms_set(ie,
122 4723f050 2020-07-23 stsp sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO));
126 ddce0520 2019-03-26 stsp if (blob_sha1) {
127 3f762da0 2019-08-03 stsp memcpy(ie->blob_sha1, blob_sha1, SHA1_DIGEST_LENGTH);
128 3f762da0 2019-08-03 stsp ie->flags &= ~GOT_FILEIDX_F_NO_BLOB;
130 3f762da0 2019-08-03 stsp ie->flags |= GOT_FILEIDX_F_NO_BLOB;
132 ddce0520 2019-03-26 stsp if (commit_sha1) {
133 3f762da0 2019-08-03 stsp memcpy(ie->commit_sha1, commit_sha1, SHA1_DIGEST_LENGTH);
134 3f762da0 2019-08-03 stsp ie->flags &= ~GOT_FILEIDX_F_NO_COMMIT;
136 3f762da0 2019-08-03 stsp ie->flags |= GOT_FILEIDX_F_NO_COMMIT;
138 51514078 2018-12-25 stsp return NULL;
142 3f762da0 2019-08-03 stsp got_fileindex_entry_mark_deleted_from_disk(struct got_fileindex_entry *ie)
144 3f762da0 2019-08-03 stsp ie->flags |= GOT_FILEIDX_F_NO_FILE_ON_DISK;
148 a769b60b 2021-06-27 stsp got_fileindex_entry_mark_skipped(struct got_fileindex_entry *ie)
150 a769b60b 2021-06-27 stsp ie->flags |= GOT_FILEIDX_F_SKIPPED;
153 51514078 2018-12-25 stsp const struct got_error *
154 3f762da0 2019-08-03 stsp got_fileindex_entry_alloc(struct got_fileindex_entry **ie,
155 3969253a 2020-03-07 stsp const char *relpath)
157 51514078 2018-12-25 stsp size_t len;
159 3f762da0 2019-08-03 stsp *ie = calloc(1, sizeof(**ie));
160 3f762da0 2019-08-03 stsp if (*ie == NULL)
161 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
163 3f762da0 2019-08-03 stsp (*ie)->path = strdup(relpath);
164 3f762da0 2019-08-03 stsp if ((*ie)->path == NULL) {
165 638f9024 2019-05-13 stsp const struct got_error *err = got_error_from_errno("strdup");
167 3f762da0 2019-08-03 stsp *ie = NULL;
168 0a585a0d 2018-03-17 stsp return err;
171 4d555405 2019-08-03 stsp len = strlen(relpath);
172 a7f9d64d 2019-01-13 stsp if (len > GOT_FILEIDX_F_PATH_LEN)
173 a7f9d64d 2019-01-13 stsp len = GOT_FILEIDX_F_PATH_LEN;
174 3f762da0 2019-08-03 stsp (*ie)->flags |= len;
176 3969253a 2020-03-07 stsp return NULL;
180 3f762da0 2019-08-03 stsp got_fileindex_entry_free(struct got_fileindex_entry *ie)
182 3f762da0 2019-08-03 stsp free(ie->path);
187 4d555405 2019-08-03 stsp got_fileindex_entry_path_len(const struct got_fileindex_entry *ie)
189 4d555405 2019-08-03 stsp return (size_t)(ie->flags & GOT_FILEIDX_F_PATH_LEN);
193 0cb83759 2019-08-03 stsp got_fileindex_entry_stage_get(const struct got_fileindex_entry *ie)
195 df335242 2019-08-03 stsp return ((ie->flags & GOT_FILEIDX_F_STAGE) >> GOT_FILEIDX_F_STAGE_SHIFT);
199 0cb83759 2019-08-03 stsp got_fileindex_entry_stage_set(struct got_fileindex_entry *ie, uint32_t stage)
201 0cb83759 2019-08-03 stsp ie->flags &= ~GOT_FILEIDX_F_STAGE;
202 0cb83759 2019-08-03 stsp ie->flags |= ((stage << GOT_FILEIDX_F_STAGE_SHIFT) &
203 0cb83759 2019-08-03 stsp GOT_FILEIDX_F_STAGE);
207 2e1fa222 2020-07-23 stsp got_fileindex_entry_filetype_get(struct got_fileindex_entry *ie)
209 f5f1f9c2 2020-07-23 stsp return (ie->mode & GOT_FILEIDX_MODE_FILE_TYPE_ONDISK);
213 2e1fa222 2020-07-23 stsp got_fileindex_entry_filetype_set(struct got_fileindex_entry *ie, int type)
215 6131ab45 2020-07-23 stsp ie->mode &= ~GOT_FILEIDX_MODE_FILE_TYPE_ONDISK;
216 6131ab45 2020-07-23 stsp ie->mode |= (type & GOT_FILEIDX_MODE_FILE_TYPE_ONDISK);
220 48b4f239 2021-12-31 thomas got_fileindex_entry_staged_filetype_set(struct got_fileindex_entry *ie,
221 48b4f239 2021-12-31 thomas int type)
223 984c073d 2020-07-23 stsp ie->mode &= ~GOT_FILEIDX_MODE_FILE_TYPE_STAGED;
224 984c073d 2020-07-23 stsp ie->mode |= ((type << GOT_FILEIDX_MODE_FILE_TYPE_STAGED_SHIFT) &
225 984c073d 2020-07-23 stsp GOT_FILEIDX_MODE_FILE_TYPE_STAGED);
229 984c073d 2020-07-23 stsp got_fileindex_entry_staged_filetype_get(struct got_fileindex_entry *ie)
231 984c073d 2020-07-23 stsp return (ie->mode & GOT_FILEIDX_MODE_FILE_TYPE_STAGED) >>
232 984c073d 2020-07-23 stsp GOT_FILEIDX_MODE_FILE_TYPE_STAGED_SHIFT;
236 d00136be 2019-03-26 stsp got_fileindex_entry_has_blob(struct got_fileindex_entry *ie)
238 d00136be 2019-03-26 stsp return (ie->flags & GOT_FILEIDX_F_NO_BLOB) == 0;
242 d00136be 2019-03-26 stsp got_fileindex_entry_has_commit(struct got_fileindex_entry *ie)
244 d00136be 2019-03-26 stsp return (ie->flags & GOT_FILEIDX_F_NO_COMMIT) == 0;
248 2ec1f75b 2019-03-26 stsp got_fileindex_entry_has_file_on_disk(struct got_fileindex_entry *ie)
250 2ec1f75b 2019-03-26 stsp return (ie->flags & GOT_FILEIDX_F_NO_FILE_ON_DISK) == 0;
254 a769b60b 2021-06-27 stsp got_fileindex_entry_was_skipped(struct got_fileindex_entry *ie)
256 a769b60b 2021-06-27 stsp return (ie->flags & GOT_FILEIDX_F_SKIPPED) != 0;
259 50952927 2019-01-12 stsp static const struct got_error *
260 3f762da0 2019-08-03 stsp add_entry(struct got_fileindex *fileindex, struct got_fileindex_entry *ie)
262 133d2798 2019-01-08 stsp if (fileindex->nentries >= GOT_FILEIDX_MAX_ENTRIES)
263 133d2798 2019-01-08 stsp return got_error(GOT_ERR_NO_SPACE);
265 9fad5d8c 2022-04-16 thomas if (RB_INSERT(got_fileindex_tree, &fileindex->entries, ie) != NULL)
266 9fad5d8c 2022-04-16 thomas return got_error_path(ie->path, GOT_ERR_FILEIDX_DUP_ENTRY);
268 133d2798 2019-01-08 stsp fileindex->nentries++;
269 133d2798 2019-01-08 stsp return NULL;
272 50952927 2019-01-12 stsp const struct got_error *
273 50952927 2019-01-12 stsp got_fileindex_entry_add(struct got_fileindex *fileindex,
274 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie)
276 50952927 2019-01-12 stsp /* Flag this entry until it gets written out to disk. */
277 3f762da0 2019-08-03 stsp ie->flags |= GOT_FILEIDX_F_NOT_FLUSHED;
279 3f762da0 2019-08-03 stsp return add_entry(fileindex, ie);
283 512f0d0e 2019-01-02 stsp got_fileindex_entry_remove(struct got_fileindex *fileindex,
284 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie)
287 a46b9f33 2020-01-28 stsp * Removing an entry from the RB tree immediately breaks
288 a46b9f33 2020-01-28 stsp * in-progress iterations over file index entries.
289 8bd8568c 2020-04-24 stsp * So flag this entry for removal and remove it once the index
290 8bd8568c 2020-04-24 stsp * is written out to disk. Meanwhile, pretend this entry no longer
291 a46b9f33 2020-01-28 stsp * exists if we get queried for it again before then.
293 a46b9f33 2020-01-28 stsp ie->flags |= GOT_FILEIDX_F_REMOVE_ON_FLUSH;
294 133d2798 2019-01-08 stsp fileindex->nentries--;
297 51514078 2018-12-25 stsp struct got_fileindex_entry *
298 d6c87207 2019-08-02 stsp got_fileindex_entry_get(struct got_fileindex *fileindex, const char *path,
299 d6c87207 2019-08-02 stsp size_t path_len)
301 a46b9f33 2020-01-28 stsp struct got_fileindex_entry *ie;
302 133d2798 2019-01-08 stsp struct got_fileindex_entry key;
303 133d2798 2019-01-08 stsp memset(&key, 0, sizeof(key));
304 133d2798 2019-01-08 stsp key.path = (char *)path;
305 4d555405 2019-08-03 stsp key.flags = (path_len & GOT_FILEIDX_F_PATH_LEN);
306 a46b9f33 2020-01-28 stsp ie = RB_FIND(got_fileindex_tree, &fileindex->entries, &key);
307 a46b9f33 2020-01-28 stsp if (ie && (ie->flags & GOT_FILEIDX_F_REMOVE_ON_FLUSH))
308 a46b9f33 2020-01-28 stsp return NULL;
312 512f0d0e 2019-01-02 stsp const struct got_error *
313 e1ed7f77 2019-01-06 stsp got_fileindex_for_each_entry_safe(struct got_fileindex *fileindex,
314 b504a804 2019-01-08 stsp got_fileindex_cb cb, void *cb_arg)
316 133d2798 2019-01-08 stsp const struct got_error *err;
317 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie, *tmp;
319 3f762da0 2019-08-03 stsp RB_FOREACH_SAFE(ie, got_fileindex_tree, &fileindex->entries, tmp) {
320 a46b9f33 2020-01-28 stsp if (ie->flags & GOT_FILEIDX_F_REMOVE_ON_FLUSH)
322 3f762da0 2019-08-03 stsp err = (*cb)(cb_arg, ie);
324 133d2798 2019-01-08 stsp return err;
326 b504a804 2019-01-08 stsp return NULL;
329 133d2798 2019-01-08 stsp struct got_fileindex *
330 133d2798 2019-01-08 stsp got_fileindex_alloc(void)
332 133d2798 2019-01-08 stsp struct got_fileindex *fileindex;
334 133d2798 2019-01-08 stsp fileindex = calloc(1, sizeof(*fileindex));
335 133d2798 2019-01-08 stsp if (fileindex == NULL)
336 133d2798 2019-01-08 stsp return NULL;
338 133d2798 2019-01-08 stsp RB_INIT(&fileindex->entries);
339 133d2798 2019-01-08 stsp return fileindex;
343 7426bbfd 2018-12-24 stsp got_fileindex_free(struct got_fileindex *fileindex)
345 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie;
347 3f762da0 2019-08-03 stsp while ((ie = RB_MIN(got_fileindex_tree, &fileindex->entries))) {
348 3f762da0 2019-08-03 stsp RB_REMOVE(got_fileindex_tree, &fileindex->entries, ie);
349 3f762da0 2019-08-03 stsp got_fileindex_entry_free(ie);
351 9d31a1d8 2018-03-11 stsp free(fileindex);
354 c34b20a2 2018-03-12 stsp static const struct got_error *
355 c34b20a2 2018-03-12 stsp write_fileindex_val64(SHA1_CTX *ctx, uint64_t val, FILE *outfile)
359 c34b20a2 2018-03-12 stsp val = htobe64(val);
360 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)&val, sizeof(val));
361 3fe2daf1 2018-12-24 stsp n = fwrite(&val, 1, sizeof(val), outfile);
362 c34b20a2 2018-03-12 stsp if (n != sizeof(val))
363 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
364 c34b20a2 2018-03-12 stsp return NULL;
367 c34b20a2 2018-03-12 stsp static const struct got_error *
368 c34b20a2 2018-03-12 stsp write_fileindex_val32(SHA1_CTX *ctx, uint32_t val, FILE *outfile)
372 c34b20a2 2018-03-12 stsp val = htobe32(val);
373 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)&val, sizeof(val));
374 3fe2daf1 2018-12-24 stsp n = fwrite(&val, 1, sizeof(val), outfile);
375 c34b20a2 2018-03-12 stsp if (n != sizeof(val))
376 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
377 c34b20a2 2018-03-12 stsp return NULL;
380 c34b20a2 2018-03-12 stsp static const struct got_error *
381 c34b20a2 2018-03-12 stsp write_fileindex_val16(SHA1_CTX *ctx, uint16_t val, FILE *outfile)
385 c34b20a2 2018-03-12 stsp val = htobe16(val);
386 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)&val, sizeof(val));
387 3fe2daf1 2018-12-24 stsp n = fwrite(&val, 1, sizeof(val), outfile);
388 c34b20a2 2018-03-12 stsp if (n != sizeof(val))
389 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
390 c34b20a2 2018-03-12 stsp return NULL;
393 c34b20a2 2018-03-12 stsp static const struct got_error *
394 c34b20a2 2018-03-12 stsp write_fileindex_path(SHA1_CTX *ctx, const char *path, FILE *outfile)
396 3c5b70f2 2018-12-27 stsp size_t n, len, pad = 0;
397 c34b20a2 2018-03-12 stsp static const uint8_t zero[8] = { 0 };
399 c34b20a2 2018-03-12 stsp len = strlen(path);
400 3c5b70f2 2018-12-27 stsp while ((len + pad) % 8 != 0)
402 3c5b70f2 2018-12-27 stsp if (pad == 0)
403 3c5b70f2 2018-12-27 stsp pad = 8; /* NUL-terminate */
405 c34b20a2 2018-03-12 stsp SHA1Update(ctx, path, len);
406 c34b20a2 2018-03-12 stsp n = fwrite(path, 1, len, outfile);
407 c34b20a2 2018-03-12 stsp if (n != len)
408 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
409 c34b20a2 2018-03-12 stsp SHA1Update(ctx, zero, pad);
410 c34b20a2 2018-03-12 stsp n = fwrite(zero, 1, pad, outfile);
411 c34b20a2 2018-03-12 stsp if (n != pad)
412 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
413 c34b20a2 2018-03-12 stsp return NULL;
416 c34b20a2 2018-03-12 stsp static const struct got_error *
417 3f762da0 2019-08-03 stsp write_fileindex_entry(SHA1_CTX *ctx, struct got_fileindex_entry *ie,
418 c34b20a2 2018-03-12 stsp FILE *outfile)
420 c34b20a2 2018-03-12 stsp const struct got_error *err;
422 df335242 2019-08-03 stsp uint32_t stage;
424 3f762da0 2019-08-03 stsp err = write_fileindex_val64(ctx, ie->ctime_sec, outfile);
426 c34b20a2 2018-03-12 stsp return err;
427 3f762da0 2019-08-03 stsp err = write_fileindex_val64(ctx, ie->ctime_nsec, outfile);
429 c34b20a2 2018-03-12 stsp return err;
430 3f762da0 2019-08-03 stsp err = write_fileindex_val64(ctx, ie->mtime_sec, outfile);
432 c34b20a2 2018-03-12 stsp return err;
433 3f762da0 2019-08-03 stsp err = write_fileindex_val64(ctx, ie->mtime_nsec, outfile);
435 c34b20a2 2018-03-12 stsp return err;
437 3f762da0 2019-08-03 stsp err = write_fileindex_val32(ctx, ie->uid, outfile);
439 c34b20a2 2018-03-12 stsp return err;
440 3f762da0 2019-08-03 stsp err = write_fileindex_val32(ctx, ie->gid, outfile);
442 c34b20a2 2018-03-12 stsp return err;
443 3f762da0 2019-08-03 stsp err = write_fileindex_val32(ctx, ie->size, outfile);
445 c34b20a2 2018-03-12 stsp return err;
447 3f762da0 2019-08-03 stsp err = write_fileindex_val16(ctx, ie->mode, outfile);
449 c34b20a2 2018-03-12 stsp return err;
451 3f762da0 2019-08-03 stsp SHA1Update(ctx, ie->blob_sha1, SHA1_DIGEST_LENGTH);
452 3f762da0 2019-08-03 stsp n = fwrite(ie->blob_sha1, 1, SHA1_DIGEST_LENGTH, outfile);
453 fc76cabb 2018-12-25 stsp if (n != SHA1_DIGEST_LENGTH)
454 fc76cabb 2018-12-25 stsp return got_ferror(outfile, GOT_ERR_IO);
456 3f762da0 2019-08-03 stsp SHA1Update(ctx, ie->commit_sha1, SHA1_DIGEST_LENGTH);
457 3f762da0 2019-08-03 stsp n = fwrite(ie->commit_sha1, 1, SHA1_DIGEST_LENGTH, outfile);
458 c34b20a2 2018-03-12 stsp if (n != SHA1_DIGEST_LENGTH)
459 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
461 3f762da0 2019-08-03 stsp err = write_fileindex_val32(ctx, ie->flags, outfile);
463 c34b20a2 2018-03-12 stsp return err;
465 3f762da0 2019-08-03 stsp err = write_fileindex_path(ctx, ie->path, outfile);
467 df335242 2019-08-03 stsp return err;
469 0cb83759 2019-08-03 stsp stage = got_fileindex_entry_stage_get(ie);
470 df335242 2019-08-03 stsp if (stage == GOT_FILEIDX_STAGE_MODIFY ||
471 df335242 2019-08-03 stsp stage == GOT_FILEIDX_STAGE_ADD) {
472 df335242 2019-08-03 stsp SHA1Update(ctx, ie->staged_blob_sha1, SHA1_DIGEST_LENGTH);
473 df335242 2019-08-03 stsp n = fwrite(ie->staged_blob_sha1, 1, SHA1_DIGEST_LENGTH,
475 df335242 2019-08-03 stsp if (n != SHA1_DIGEST_LENGTH)
476 df335242 2019-08-03 stsp return got_ferror(outfile, GOT_ERR_IO);
479 df335242 2019-08-03 stsp return NULL;
482 9d31a1d8 2018-03-11 stsp const struct got_error *
483 9d31a1d8 2018-03-11 stsp got_fileindex_write(struct got_fileindex *fileindex, FILE *outfile)
485 b504a804 2019-01-08 stsp const struct got_error *err = NULL;
486 c34b20a2 2018-03-12 stsp struct got_fileindex_hdr hdr;
487 c34b20a2 2018-03-12 stsp SHA1_CTX ctx;
488 c34b20a2 2018-03-12 stsp uint8_t sha1[SHA1_DIGEST_LENGTH];
490 8bd8568c 2020-04-24 stsp struct got_fileindex_entry *ie, *tmp;
492 c34b20a2 2018-03-12 stsp SHA1Init(&ctx);
494 c34b20a2 2018-03-12 stsp hdr.signature = htobe32(GOT_FILE_INDEX_SIGNATURE);
495 c34b20a2 2018-03-12 stsp hdr.version = htobe32(GOT_FILE_INDEX_VERSION);
496 133d2798 2019-01-08 stsp hdr.nentries = htobe32(fileindex->nentries);
498 a5744d71 2019-01-12 stsp SHA1Update(&ctx, (uint8_t *)&hdr.signature, sizeof(hdr.signature));
499 a5744d71 2019-01-12 stsp SHA1Update(&ctx, (uint8_t *)&hdr.version, sizeof(hdr.version));
500 a5744d71 2019-01-12 stsp SHA1Update(&ctx, (uint8_t *)&hdr.nentries, sizeof(hdr.nentries));
501 a5744d71 2019-01-12 stsp n = fwrite(&hdr.signature, 1, sizeof(hdr.signature), outfile);
502 a5744d71 2019-01-12 stsp if (n != sizeof(hdr.signature))
503 a5744d71 2019-01-12 stsp return got_ferror(outfile, GOT_ERR_IO);
504 a5744d71 2019-01-12 stsp n = fwrite(&hdr.version, 1, sizeof(hdr.version), outfile);
505 a5744d71 2019-01-12 stsp if (n != sizeof(hdr.version))
506 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
507 a5744d71 2019-01-12 stsp n = fwrite(&hdr.nentries, 1, sizeof(hdr.nentries), outfile);
508 a5744d71 2019-01-12 stsp if (n != sizeof(hdr.nentries))
509 a5744d71 2019-01-12 stsp return got_ferror(outfile, GOT_ERR_IO);
511 8bd8568c 2020-04-24 stsp RB_FOREACH_SAFE(ie, got_fileindex_tree, &fileindex->entries, tmp) {
512 3f762da0 2019-08-03 stsp ie->flags &= ~GOT_FILEIDX_F_NOT_FLUSHED;
513 a769b60b 2021-06-27 stsp ie->flags &= ~GOT_FILEIDX_F_SKIPPED;
514 8bd8568c 2020-04-24 stsp if (ie->flags & GOT_FILEIDX_F_REMOVE_ON_FLUSH) {
515 8bd8568c 2020-04-24 stsp RB_REMOVE(got_fileindex_tree, &fileindex->entries, ie);
516 8bd8568c 2020-04-24 stsp got_fileindex_entry_free(ie);
519 3f762da0 2019-08-03 stsp err = write_fileindex_entry(&ctx, ie, outfile);
521 133d2798 2019-01-08 stsp return err;
524 c34b20a2 2018-03-12 stsp SHA1Final(sha1, &ctx);
525 c34b20a2 2018-03-12 stsp n = fwrite(sha1, 1, sizeof(sha1), outfile);
526 c34b20a2 2018-03-12 stsp if (n != sizeof(sha1))
527 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
529 27d0e5bd 2019-01-12 stsp if (fflush(outfile) != 0)
530 638f9024 2019-05-13 stsp return got_error_from_errno("fflush");
532 52a74475 2018-12-24 stsp return NULL;
535 52a74475 2018-12-24 stsp static const struct got_error *
536 52a74475 2018-12-24 stsp read_fileindex_val64(uint64_t *val, SHA1_CTX *ctx, FILE *infile)
540 3fe2daf1 2018-12-24 stsp n = fread(val, 1, sizeof(*val), infile);
541 3fe2daf1 2018-12-24 stsp if (n != sizeof(*val))
542 27793341 2019-01-12 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
543 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)val, sizeof(*val));
544 9eb6a6b2 2018-12-24 stsp *val = be64toh(*val);
545 52a74475 2018-12-24 stsp return NULL;
548 52a74475 2018-12-24 stsp static const struct got_error *
549 52a74475 2018-12-24 stsp read_fileindex_val32(uint32_t *val, SHA1_CTX *ctx, FILE *infile)
553 3fe2daf1 2018-12-24 stsp n = fread(val, 1, sizeof(*val), infile);
554 3fe2daf1 2018-12-24 stsp if (n != sizeof(*val))
555 27793341 2019-01-12 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
556 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)val, sizeof(*val));
557 9eb6a6b2 2018-12-24 stsp *val = be32toh(*val);
558 52a74475 2018-12-24 stsp return NULL;
561 52a74475 2018-12-24 stsp static const struct got_error *
562 52a74475 2018-12-24 stsp read_fileindex_val16(uint16_t *val, SHA1_CTX *ctx, FILE *infile)
566 3fe2daf1 2018-12-24 stsp n = fread(val, 1, sizeof(*val), infile);
567 3fe2daf1 2018-12-24 stsp if (n != sizeof(*val))
568 27793341 2019-01-12 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
569 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)val, sizeof(*val));
570 9eb6a6b2 2018-12-24 stsp *val = be16toh(*val);
571 52a74475 2018-12-24 stsp return NULL;
574 52a74475 2018-12-24 stsp static const struct got_error *
575 52a74475 2018-12-24 stsp read_fileindex_path(char **path, SHA1_CTX *ctx, FILE *infile)
577 52a74475 2018-12-24 stsp const struct got_error *err = NULL;
578 6bf2c316 2019-08-02 stsp const size_t chunk_size = 8;
579 6bf2c316 2019-08-02 stsp size_t n, len = 0, totlen = chunk_size;
581 52a74475 2018-12-24 stsp *path = malloc(totlen);
582 52a74475 2018-12-24 stsp if (*path == NULL)
583 638f9024 2019-05-13 stsp return got_error_from_errno("malloc");
586 6bf2c316 2019-08-02 stsp if (len + chunk_size > totlen) {
587 6bf2c316 2019-08-02 stsp char *p = reallocarray(*path, totlen + chunk_size, 1);
588 52a74475 2018-12-24 stsp if (p == NULL) {
589 638f9024 2019-05-13 stsp err = got_error_from_errno("reallocarray");
592 6bf2c316 2019-08-02 stsp totlen += chunk_size;
595 6bf2c316 2019-08-02 stsp n = fread(*path + len, 1, chunk_size, infile);
596 6bf2c316 2019-08-02 stsp if (n != chunk_size) {
597 6bf2c316 2019-08-02 stsp err = got_ferror(infile, GOT_ERR_FILEIDX_BAD);
600 6bf2c316 2019-08-02 stsp SHA1Update(ctx, *path + len, chunk_size);
601 6bf2c316 2019-08-02 stsp len += chunk_size;
602 6bf2c316 2019-08-02 stsp } while (memchr(*path + len - chunk_size, '\0', chunk_size) == NULL);
605 52a74475 2018-12-24 stsp free(*path);
606 52a74475 2018-12-24 stsp *path = NULL;
608 52a74475 2018-12-24 stsp return err;
611 52a74475 2018-12-24 stsp static const struct got_error *
612 3f762da0 2019-08-03 stsp read_fileindex_entry(struct got_fileindex_entry **iep, SHA1_CTX *ctx,
613 df335242 2019-08-03 stsp FILE *infile, uint32_t version)
615 52a74475 2018-12-24 stsp const struct got_error *err;
616 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie;
619 3f762da0 2019-08-03 stsp *iep = NULL;
621 3f762da0 2019-08-03 stsp ie = calloc(1, sizeof(*ie));
622 3f762da0 2019-08-03 stsp if (ie == NULL)
623 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
625 3f762da0 2019-08-03 stsp err = read_fileindex_val64(&ie->ctime_sec, ctx, infile);
628 3f762da0 2019-08-03 stsp err = read_fileindex_val64(&ie->ctime_nsec, ctx, infile);
631 3f762da0 2019-08-03 stsp err = read_fileindex_val64(&ie->mtime_sec, ctx, infile);
634 3f762da0 2019-08-03 stsp err = read_fileindex_val64(&ie->mtime_nsec, ctx, infile);
638 3f762da0 2019-08-03 stsp err = read_fileindex_val32(&ie->uid, ctx, infile);
641 3f762da0 2019-08-03 stsp err = read_fileindex_val32(&ie->gid, ctx, infile);
644 3f762da0 2019-08-03 stsp err = read_fileindex_val32(&ie->size, ctx, infile);
648 3f762da0 2019-08-03 stsp err = read_fileindex_val16(&ie->mode, ctx, infile);
652 3f762da0 2019-08-03 stsp n = fread(ie->blob_sha1, 1, SHA1_DIGEST_LENGTH, infile);
653 52a74475 2018-12-24 stsp if (n != SHA1_DIGEST_LENGTH) {
654 27793341 2019-01-12 stsp err = got_ferror(infile, GOT_ERR_FILEIDX_BAD);
657 3f762da0 2019-08-03 stsp SHA1Update(ctx, ie->blob_sha1, SHA1_DIGEST_LENGTH);
659 3f762da0 2019-08-03 stsp n = fread(ie->commit_sha1, 1, SHA1_DIGEST_LENGTH, infile);
660 fc76cabb 2018-12-25 stsp if (n != SHA1_DIGEST_LENGTH) {
661 27793341 2019-01-12 stsp err = got_ferror(infile, GOT_ERR_FILEIDX_BAD);
664 3f762da0 2019-08-03 stsp SHA1Update(ctx, ie->commit_sha1, SHA1_DIGEST_LENGTH);
666 3f762da0 2019-08-03 stsp err = read_fileindex_val32(&ie->flags, ctx, infile);
670 3f762da0 2019-08-03 stsp err = read_fileindex_path(&ie->path, ctx, infile);
674 df335242 2019-08-03 stsp if (version >= 2) {
675 0cb83759 2019-08-03 stsp uint32_t stage = got_fileindex_entry_stage_get(ie);
676 df335242 2019-08-03 stsp if (stage == GOT_FILEIDX_STAGE_MODIFY ||
677 df335242 2019-08-03 stsp stage == GOT_FILEIDX_STAGE_ADD) {
678 df335242 2019-08-03 stsp n = fread(ie->staged_blob_sha1, 1, SHA1_DIGEST_LENGTH,
680 df335242 2019-08-03 stsp if (n != SHA1_DIGEST_LENGTH) {
681 df335242 2019-08-03 stsp err = got_ferror(infile, GOT_ERR_FILEIDX_BAD);
684 df335242 2019-08-03 stsp SHA1Update(ctx, ie->staged_blob_sha1, SHA1_DIGEST_LENGTH);
687 df335242 2019-08-03 stsp /* GOT_FILE_INDEX_VERSION 1 does not support staging. */
688 df335242 2019-08-03 stsp ie->flags &= ~GOT_FILEIDX_F_STAGE;
693 3f762da0 2019-08-03 stsp got_fileindex_entry_free(ie);
696 52a74475 2018-12-24 stsp return err;
699 52a74475 2018-12-24 stsp const struct got_error *
700 52a74475 2018-12-24 stsp got_fileindex_read(struct got_fileindex *fileindex, FILE *infile)
702 52a74475 2018-12-24 stsp const struct got_error *err = NULL;
703 52a74475 2018-12-24 stsp struct got_fileindex_hdr hdr;
704 52a74475 2018-12-24 stsp SHA1_CTX ctx;
705 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie;
706 52a74475 2018-12-24 stsp uint8_t sha1_expected[SHA1_DIGEST_LENGTH];
707 52a74475 2018-12-24 stsp uint8_t sha1[SHA1_DIGEST_LENGTH];
711 52a74475 2018-12-24 stsp SHA1Init(&ctx);
713 b6d05318 2019-01-13 stsp n = fread(&hdr.signature, 1, sizeof(hdr.signature), infile);
714 b6d05318 2019-01-13 stsp if (n != sizeof(hdr.signature)) {
715 b6d05318 2019-01-13 stsp if (n == 0) /* EOF */
716 b6d05318 2019-01-13 stsp return NULL;
717 b6d05318 2019-01-13 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
719 b6d05318 2019-01-13 stsp n = fread(&hdr.version, 1, sizeof(hdr.version), infile);
720 b6d05318 2019-01-13 stsp if (n != sizeof(hdr.version)) {
721 51514078 2018-12-25 stsp if (n == 0) /* EOF */
722 51514078 2018-12-25 stsp return NULL;
723 27793341 2019-01-12 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
725 b6d05318 2019-01-13 stsp n = fread(&hdr.nentries, 1, sizeof(hdr.nentries), infile);
726 b6d05318 2019-01-13 stsp if (n != sizeof(hdr.nentries)) {
727 b6d05318 2019-01-13 stsp if (n == 0) /* EOF */
728 b6d05318 2019-01-13 stsp return NULL;
729 b6d05318 2019-01-13 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
732 b6d05318 2019-01-13 stsp SHA1Update(&ctx, (uint8_t *)&hdr.signature, sizeof(hdr.signature));
733 b6d05318 2019-01-13 stsp SHA1Update(&ctx, (uint8_t *)&hdr.version, sizeof(hdr.version));
734 b6d05318 2019-01-13 stsp SHA1Update(&ctx, (uint8_t *)&hdr.nentries, sizeof(hdr.nentries));
736 9eb6a6b2 2018-12-24 stsp hdr.signature = be32toh(hdr.signature);
737 9eb6a6b2 2018-12-24 stsp hdr.version = be32toh(hdr.version);
738 9eb6a6b2 2018-12-24 stsp hdr.nentries = be32toh(hdr.nentries);
740 52a74475 2018-12-24 stsp if (hdr.signature != GOT_FILE_INDEX_SIGNATURE)
741 52a74475 2018-12-24 stsp return got_error(GOT_ERR_FILEIDX_SIG);
742 df335242 2019-08-03 stsp if (hdr.version > GOT_FILE_INDEX_VERSION)
743 52a74475 2018-12-24 stsp return got_error(GOT_ERR_FILEIDX_VER);
745 52a74475 2018-12-24 stsp for (i = 0; i < hdr.nentries; i++) {
746 df335242 2019-08-03 stsp err = read_fileindex_entry(&ie, &ctx, infile, hdr.version);
748 52a74475 2018-12-24 stsp return err;
749 3f762da0 2019-08-03 stsp err = add_entry(fileindex, ie);
751 52a74475 2018-12-24 stsp return err;
754 52a74475 2018-12-24 stsp n = fread(sha1_expected, 1, sizeof(sha1_expected), infile);
755 52a74475 2018-12-24 stsp if (n != sizeof(sha1_expected))
756 27793341 2019-01-12 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
757 52a74475 2018-12-24 stsp SHA1Final(sha1, &ctx);
758 52a74475 2018-12-24 stsp if (memcmp(sha1, sha1_expected, SHA1_DIGEST_LENGTH) != 0)
759 52a74475 2018-12-24 stsp return got_error(GOT_ERR_FILEIDX_CSUM);
761 9d31a1d8 2018-03-11 stsp return NULL;
764 c2ac9456 2019-03-15 stsp static struct got_fileindex_entry *
765 50952927 2019-01-12 stsp walk_fileindex(struct got_fileindex *fileindex, struct got_fileindex_entry *ie)
767 50952927 2019-01-12 stsp struct got_fileindex_entry *next;
769 50952927 2019-01-12 stsp next = RB_NEXT(got_fileindex_tree, &fileindex->entries, ie);
771 a46b9f33 2020-01-28 stsp /* Skip entries which were added or removed by diff callbacks. */
772 a46b9f33 2020-01-28 stsp while (next && (next->flags & (GOT_FILEIDX_F_NOT_FLUSHED |
773 a46b9f33 2020-01-28 stsp GOT_FILEIDX_F_REMOVE_ON_FLUSH)))
774 50952927 2019-01-12 stsp next = RB_NEXT(got_fileindex_tree, &fileindex->entries, next);
776 50952927 2019-01-12 stsp return next;
779 8da9e5f4 2019-01-12 stsp static const struct got_error *
780 56e0773d 2019-11-28 stsp diff_fileindex_tree(struct got_fileindex *, struct got_fileindex_entry **ie,
781 56e0773d 2019-11-28 stsp struct got_tree_object *tree, const char *, const char *,
782 c4cdcb68 2019-04-03 stsp struct got_repository *, struct got_fileindex_diff_tree_cb *, void *);
784 9d2a8e53 2019-01-28 stsp static const struct got_error *
785 8da9e5f4 2019-01-12 stsp walk_tree(struct got_tree_entry **next, struct got_fileindex *fileindex,
786 56e0773d 2019-11-28 stsp struct got_fileindex_entry **ie, struct got_tree_object *tree, int *tidx,
787 c4cdcb68 2019-04-03 stsp const char *path, const char *entry_name, struct got_repository *repo,
788 f44ffd20 2019-02-04 stsp struct got_fileindex_diff_tree_cb *cb, void *cb_arg)
790 8da9e5f4 2019-01-12 stsp const struct got_error *err = NULL;
791 56e0773d 2019-11-28 stsp struct got_tree_entry *te = got_object_tree_get_entry(tree, *tidx);
793 56e0773d 2019-11-28 stsp if (!got_object_tree_entry_is_submodule(te) &&
794 56e0773d 2019-11-28 stsp S_ISDIR(got_tree_entry_get_mode(te))) {
795 8da9e5f4 2019-01-12 stsp char *subpath;
796 8da9e5f4 2019-01-12 stsp struct got_tree_object *subtree;
798 8da9e5f4 2019-01-12 stsp if (asprintf(&subpath, "%s%s%s", path,
799 56e0773d 2019-11-28 stsp path[0] == '\0' ? "" : "/",
800 56e0773d 2019-11-28 stsp got_tree_entry_get_name(te)) == -1)
801 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
803 56e0773d 2019-11-28 stsp err = got_object_open_as_tree(&subtree, repo,
804 56e0773d 2019-11-28 stsp got_tree_entry_get_id(te));
806 8da9e5f4 2019-01-12 stsp free(subpath);
807 8da9e5f4 2019-01-12 stsp return err;
810 56e0773d 2019-11-28 stsp err = diff_fileindex_tree(fileindex, ie, subtree, subpath,
811 56e0773d 2019-11-28 stsp entry_name, repo, cb, cb_arg);
812 8da9e5f4 2019-01-12 stsp free(subpath);
813 8da9e5f4 2019-01-12 stsp got_object_tree_close(subtree);
815 8da9e5f4 2019-01-12 stsp return err;
819 56e0773d 2019-11-28 stsp *next = got_object_tree_get_entry(tree, *tidx);
820 8da9e5f4 2019-01-12 stsp return NULL;
823 8da9e5f4 2019-01-12 stsp static const struct got_error *
824 8da9e5f4 2019-01-12 stsp diff_fileindex_tree(struct got_fileindex *fileindex,
825 56e0773d 2019-11-28 stsp struct got_fileindex_entry **ie, struct got_tree_object *tree,
826 c4cdcb68 2019-04-03 stsp const char *path, const char *entry_name, struct got_repository *repo,
827 f44ffd20 2019-02-04 stsp struct got_fileindex_diff_tree_cb *cb, void *cb_arg)
829 8da9e5f4 2019-01-12 stsp const struct got_error *err = NULL;
830 8da9e5f4 2019-01-12 stsp struct got_tree_entry *te = NULL;
831 8da9e5f4 2019-01-12 stsp size_t path_len = strlen(path);
832 8da9e5f4 2019-01-12 stsp struct got_fileindex_entry *next;
833 56e0773d 2019-11-28 stsp int tidx = 0;
835 56e0773d 2019-11-28 stsp te = got_object_tree_get_entry(tree, tidx);
836 500cd40f 2019-02-04 stsp while ((*ie && got_path_is_child((*ie)->path, path, path_len)) || te) {
837 8da9e5f4 2019-01-12 stsp if (te && *ie) {
838 18831e78 2019-02-10 stsp char *te_path;
839 56e0773d 2019-11-28 stsp const char *te_name = got_tree_entry_get_name(te);
841 56e0773d 2019-11-28 stsp if (asprintf(&te_path, "%s/%s", path, te_name) == -1) {
842 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
845 d572f586 2019-08-02 stsp cmp = got_path_cmp((*ie)->path, te_path,
846 4d555405 2019-08-03 stsp got_fileindex_entry_path_len(*ie), strlen(te_path));
847 18831e78 2019-02-10 stsp free(te_path);
848 8da9e5f4 2019-01-12 stsp if (cmp == 0) {
849 c4cdcb68 2019-04-03 stsp if (got_path_is_child((*ie)->path, path,
850 63c5ca5d 2019-08-24 stsp path_len) &&
851 63c5ca5d 2019-08-24 stsp !got_object_tree_entry_is_submodule(te) &&
852 63c5ca5d 2019-08-24 stsp (entry_name == NULL ||
853 56e0773d 2019-11-28 stsp strcmp(te_name, entry_name) == 0)) {
854 c4cdcb68 2019-04-03 stsp err = cb->diff_old_new(cb_arg, *ie, te,
856 c4cdcb68 2019-04-03 stsp if (err || entry_name)
859 50952927 2019-01-12 stsp *ie = walk_fileindex(fileindex, *ie);
860 56e0773d 2019-11-28 stsp err = walk_tree(&te, fileindex, ie, tree, &tidx,
861 c4cdcb68 2019-04-03 stsp path, entry_name, repo, cb, cb_arg);
862 c4cdcb68 2019-04-03 stsp } else if (cmp < 0) {
863 50952927 2019-01-12 stsp next = walk_fileindex(fileindex, *ie);
864 c4cdcb68 2019-04-03 stsp if (got_path_is_child((*ie)->path, path,
865 194cb7cb 2021-01-19 stsp path_len) && entry_name == NULL) {
866 c4cdcb68 2019-04-03 stsp err = cb->diff_old(cb_arg, *ie, path);
867 c4cdcb68 2019-04-03 stsp if (err || entry_name)
870 8da9e5f4 2019-01-12 stsp *ie = next;
872 c4cdcb68 2019-04-03 stsp if ((entry_name == NULL ||
873 56e0773d 2019-11-28 stsp strcmp(te_name, entry_name) == 0)) {
874 c4cdcb68 2019-04-03 stsp err = cb->diff_new(cb_arg, te, path);
875 c4cdcb68 2019-04-03 stsp if (err || entry_name)
878 56e0773d 2019-11-28 stsp err = walk_tree(&te, fileindex, ie, tree, &tidx,
879 c4cdcb68 2019-04-03 stsp path, entry_name, repo, cb, cb_arg);
883 8da9e5f4 2019-01-12 stsp } else if (*ie) {
884 50952927 2019-01-12 stsp next = walk_fileindex(fileindex, *ie);
885 c4cdcb68 2019-04-03 stsp if (got_path_is_child((*ie)->path, path, path_len) &&
886 c4cdcb68 2019-04-03 stsp (entry_name == NULL ||
887 56e0773d 2019-11-28 stsp (te && strcmp(got_tree_entry_get_name(te),
888 56e0773d 2019-11-28 stsp entry_name) == 0))) {
889 c4cdcb68 2019-04-03 stsp err = cb->diff_old(cb_arg, *ie, path);
890 c4cdcb68 2019-04-03 stsp if (err || entry_name)
893 8da9e5f4 2019-01-12 stsp *ie = next;
894 8da9e5f4 2019-01-12 stsp } else if (te) {
895 63c5ca5d 2019-08-24 stsp if (!got_object_tree_entry_is_submodule(te) &&
896 63c5ca5d 2019-08-24 stsp (entry_name == NULL ||
897 56e0773d 2019-11-28 stsp strcmp(got_tree_entry_get_name(te), entry_name)
899 c4cdcb68 2019-04-03 stsp err = cb->diff_new(cb_arg, te, path);
900 c4cdcb68 2019-04-03 stsp if (err || entry_name)
903 56e0773d 2019-11-28 stsp err = walk_tree(&te, fileindex, ie, tree, &tidx, path,
904 c4cdcb68 2019-04-03 stsp entry_name, repo, cb, cb_arg);
910 8da9e5f4 2019-01-12 stsp return err;
913 8da9e5f4 2019-01-12 stsp const struct got_error *
914 8da9e5f4 2019-01-12 stsp got_fileindex_diff_tree(struct got_fileindex *fileindex,
915 c4cdcb68 2019-04-03 stsp struct got_tree_object *tree, const char *path, const char *entry_name,
916 c4cdcb68 2019-04-03 stsp struct got_repository *repo,
917 f44ffd20 2019-02-04 stsp struct got_fileindex_diff_tree_cb *cb, void *cb_arg)
919 30a076bc 2019-07-27 stsp struct got_fileindex_entry *ie;
920 30a076bc 2019-07-27 stsp ie = RB_MIN(got_fileindex_tree, &fileindex->entries);
921 30a076bc 2019-07-27 stsp while (ie && !got_path_is_child(ie->path, path, strlen(path)))
922 30a076bc 2019-07-27 stsp ie = walk_fileindex(fileindex, ie);
923 56e0773d 2019-11-28 stsp return diff_fileindex_tree(fileindex, &ie, tree, path, entry_name, repo,
924 30a076bc 2019-07-27 stsp cb, cb_arg);
927 d1f6d47b 2019-02-04 stsp static const struct got_error *
928 39beb6da 2019-07-27 stsp diff_fileindex_dir(struct got_fileindex *, struct got_fileindex_entry **,
929 6fc93f37 2019-12-13 stsp struct got_pathlist_head *, int, const char *, const char *,
930 c577a9ce 2019-07-27 stsp struct got_repository *, struct got_fileindex_diff_dir_cb *, void *);
932 c577a9ce 2019-07-27 stsp static const struct got_error *
933 965988c5 2019-12-16 stsp read_dirlist(struct got_pathlist_head *dirlist, DIR *dir, const char *path)
935 c577a9ce 2019-07-27 stsp const struct got_error *err = NULL;
936 c577a9ce 2019-07-27 stsp struct got_pathlist_entry *new = NULL;
937 c577a9ce 2019-07-27 stsp struct dirent *dep = NULL;
938 c577a9ce 2019-07-27 stsp struct dirent *de = NULL;
941 c577a9ce 2019-07-27 stsp de = malloc(sizeof(struct dirent) + NAME_MAX + 1);
942 c577a9ce 2019-07-27 stsp if (de == NULL) {
943 c577a9ce 2019-07-27 stsp err = got_error_from_errno("malloc");
947 c577a9ce 2019-07-27 stsp if (readdir_r(dir, de, &dep) != 0) {
948 c577a9ce 2019-07-27 stsp err = got_error_from_errno("readdir_r");
952 c577a9ce 2019-07-27 stsp if (dep == NULL) {
957 c577a9ce 2019-07-27 stsp if (strcmp(de->d_name, ".") == 0 ||
958 c577a9ce 2019-07-27 stsp strcmp(de->d_name, "..") == 0 ||
959 c577a9ce 2019-07-27 stsp (path[0] == '\0' &&
960 c577a9ce 2019-07-27 stsp strcmp(de->d_name, GOT_WORKTREE_GOT_DIR) == 0)) {
965 c577a9ce 2019-07-27 stsp err = got_pathlist_insert(&new, dirlist, de->d_name, de);
970 c577a9ce 2019-07-27 stsp if (new == NULL) {
971 c577a9ce 2019-07-27 stsp err = got_error(GOT_ERR_DIR_DUP_ENTRY);
977 c577a9ce 2019-07-27 stsp return err;
980 ef20f542 2022-06-26 thomas static void
981 c577a9ce 2019-07-27 stsp free_dirlist(struct got_pathlist_head *dirlist)
983 c577a9ce 2019-07-27 stsp struct got_pathlist_entry *dle;
985 c577a9ce 2019-07-27 stsp TAILQ_FOREACH(dle, dirlist, entry)
986 c577a9ce 2019-07-27 stsp free(dle->data);
987 c577a9ce 2019-07-27 stsp got_pathlist_free(dirlist);
990 8528beef 2021-10-15 thomas static int
991 8528beef 2021-10-15 thomas have_tracked_file_in_dir(struct got_fileindex *fileindex, const char *path)
993 8528beef 2021-10-15 thomas struct got_fileindex_entry *ie;
994 8528beef 2021-10-15 thomas size_t path_len = strlen(path);
997 8528beef 2021-10-15 thomas ie = RB_ROOT(&fileindex->entries);
998 8528beef 2021-10-15 thomas while (ie) {
999 8528beef 2021-10-15 thomas if (got_path_is_child(ie->path, path, path_len))
1000 8528beef 2021-10-15 thomas return 1;
1001 8528beef 2021-10-15 thomas cmp = got_path_cmp(path, ie->path, path_len,
1002 8528beef 2021-10-15 thomas got_fileindex_entry_path_len(ie));
1003 8528beef 2021-10-15 thomas if (cmp < 0)
1004 8528beef 2021-10-15 thomas ie = RB_LEFT(ie, entry);
1005 8528beef 2021-10-15 thomas else if (cmp > 0)
1006 8528beef 2021-10-15 thomas ie = RB_RIGHT(ie, entry);
1011 8528beef 2021-10-15 thomas return 0;
1014 d1f6d47b 2019-02-04 stsp static const struct got_error *
1015 f5d3d7af 2019-02-05 stsp walk_dir(struct got_pathlist_entry **next, struct got_fileindex *fileindex,
1016 965988c5 2019-12-16 stsp struct got_fileindex_entry **ie, struct got_pathlist_entry *dle, int fd,
1017 39beb6da 2019-07-27 stsp const char *path, const char *rootpath, struct got_repository *repo,
1018 6092c299 2021-10-04 thomas int ignore, struct got_fileindex_diff_dir_cb *cb, void *cb_arg)
1020 d1f6d47b 2019-02-04 stsp const struct got_error *err = NULL;
1021 f5d3d7af 2019-02-05 stsp struct dirent *de = dle->data;
1022 965988c5 2019-12-16 stsp DIR *subdir = NULL;
1023 6fc93f37 2019-12-13 stsp int subdirfd = -1;
1025 573463cc 2019-04-06 stsp *next = NULL;
1027 8528beef 2021-10-15 thomas /* Must traverse ignored directories if they contain tracked files. */
1028 1f480907 2022-01-27 thomas if (de->d_type == DT_DIR && ignore &&
1029 8528beef 2021-10-15 thomas have_tracked_file_in_dir(fileindex, path))
1030 8528beef 2021-10-15 thomas ignore = 0;
1032 1f480907 2022-01-27 thomas if (de->d_type == DT_DIR && !ignore) {
1033 d1f6d47b 2019-02-04 stsp char *subpath;
1034 c7f4312f 2019-02-05 stsp char *subdirpath;
1035 c577a9ce 2019-07-27 stsp struct got_pathlist_head subdirlist;
1037 c577a9ce 2019-07-27 stsp TAILQ_INIT(&subdirlist);
1039 d1f6d47b 2019-02-04 stsp if (asprintf(&subpath, "%s%s%s", path,
1040 f5d3d7af 2019-02-05 stsp path[0] == '\0' ? "" : "/", de->d_name) == -1)
1041 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
1043 c7f4312f 2019-02-05 stsp if (asprintf(&subdirpath, "%s/%s", rootpath, subpath) == -1) {
1044 c7f4312f 2019-02-05 stsp free(subpath);
1045 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
1048 965988c5 2019-12-16 stsp subdirfd = openat(fd, de->d_name,
1049 fc63f50d 2021-12-31 thomas O_RDONLY | O_NOFOLLOW | O_DIRECTORY | O_CLOEXEC);
1050 6fc93f37 2019-12-13 stsp if (subdirfd == -1) {
1051 40b289d7 2019-09-07 stsp if (errno == EACCES) {
1052 40b289d7 2019-09-07 stsp *next = TAILQ_NEXT(dle, entry);
1053 40b289d7 2019-09-07 stsp return NULL;
1055 965988c5 2019-12-16 stsp err = got_error_from_errno2("openat", subdirpath);
1056 d1f6d47b 2019-02-04 stsp free(subpath);
1057 c7f4312f 2019-02-05 stsp free(subdirpath);
1058 ef5e02fd 2019-08-11 stsp return err;
1061 965988c5 2019-12-16 stsp subdir = fdopendir(subdirfd);
1062 965988c5 2019-12-16 stsp if (subdir == NULL)
1063 965988c5 2019-12-16 stsp return got_error_from_errno2("fdopendir", path);
1064 965988c5 2019-12-16 stsp subdirfd = -1;
1065 965988c5 2019-12-16 stsp err = read_dirlist(&subdirlist, subdir, subdirpath);
1066 c577a9ce 2019-07-27 stsp if (err) {
1067 c577a9ce 2019-07-27 stsp free(subpath);
1068 c577a9ce 2019-07-27 stsp free(subdirpath);
1069 965988c5 2019-12-16 stsp closedir(subdir);
1070 c577a9ce 2019-07-27 stsp return err;
1072 965988c5 2019-12-16 stsp err = diff_fileindex_dir(fileindex, ie, &subdirlist,
1073 965988c5 2019-12-16 stsp dirfd(subdir), rootpath, subpath, repo, cb, cb_arg);
1074 965988c5 2019-12-16 stsp if (subdir && closedir(subdir) == -1 && err == NULL)
1075 965988c5 2019-12-16 stsp err = got_error_from_errno2("closedir", subdirpath);
1076 d1f6d47b 2019-02-04 stsp free(subpath);
1077 c7f4312f 2019-02-05 stsp free(subdirpath);
1078 c577a9ce 2019-07-27 stsp free_dirlist(&subdirlist);
1080 d1f6d47b 2019-02-04 stsp return err;
1083 f5d3d7af 2019-02-05 stsp *next = TAILQ_NEXT(dle, entry);
1084 d1f6d47b 2019-02-04 stsp return NULL;
1087 d1f6d47b 2019-02-04 stsp static const struct got_error *
1088 1f480907 2022-01-27 thomas dirent_type_fixup(struct dirent *de, const char *rootpath, const char *path)
1090 1f480907 2022-01-27 thomas const struct got_error *err;
1091 1f480907 2022-01-27 thomas char *dir_path;
1092 1f480907 2022-01-27 thomas int type;
1094 1f480907 2022-01-27 thomas if (de->d_type != DT_UNKNOWN)
1095 1f480907 2022-01-27 thomas return NULL;
1097 1f480907 2022-01-27 thomas /* DT_UNKNOWN occurs on NFS mounts without "readdir plus" RPC. */
1098 1f480907 2022-01-27 thomas if (asprintf(&dir_path, "%s/%s", rootpath, path) == -1)
1099 1f480907 2022-01-27 thomas return got_error_from_errno("asprintf");
1100 1f480907 2022-01-27 thomas err = got_path_dirent_type(&type, dir_path, de);
1101 1f480907 2022-01-27 thomas free(dir_path);
1102 1f480907 2022-01-27 thomas if (err)
1103 1f480907 2022-01-27 thomas return err;
1105 1f480907 2022-01-27 thomas de->d_type = type;
1106 1f480907 2022-01-27 thomas return NULL;
1109 1f480907 2022-01-27 thomas static const struct got_error *
1110 d1f6d47b 2019-02-04 stsp diff_fileindex_dir(struct got_fileindex *fileindex,
1111 39beb6da 2019-07-27 stsp struct got_fileindex_entry **ie, struct got_pathlist_head *dirlist,
1112 6fc93f37 2019-12-13 stsp int dirfd, const char *rootpath, const char *path,
1113 6fc93f37 2019-12-13 stsp struct got_repository *repo,
1114 39beb6da 2019-07-27 stsp struct got_fileindex_diff_dir_cb *cb, void *cb_arg)
1116 d1f6d47b 2019-02-04 stsp const struct got_error *err = NULL;
1117 d1f6d47b 2019-02-04 stsp struct dirent *de = NULL;
1118 d1f6d47b 2019-02-04 stsp size_t path_len = strlen(path);
1119 f5d3d7af 2019-02-05 stsp struct got_pathlist_entry *dle;
1120 6092c299 2021-10-04 thomas int ignore;
1122 3143d852 2020-06-25 stsp if (cb->diff_traverse) {
1123 3143d852 2020-06-25 stsp err = cb->diff_traverse(cb_arg, path, dirfd);
1125 3143d852 2020-06-25 stsp return err;
1128 c577a9ce 2019-07-27 stsp dle = TAILQ_FIRST(dirlist);
1129 500cd40f 2019-02-04 stsp while ((*ie && got_path_is_child((*ie)->path, path, path_len)) || dle) {
1130 500cd40f 2019-02-04 stsp if (dle && *ie) {
1131 18831e78 2019-02-10 stsp char *de_path;
1133 f5d3d7af 2019-02-05 stsp de = dle->data;
1134 1f480907 2022-01-27 thomas err = dirent_type_fixup(de, rootpath, path);
1135 1f480907 2022-01-27 thomas if (err)
1137 18831e78 2019-02-10 stsp if (asprintf(&de_path, "%s/%s", path,
1138 18831e78 2019-02-10 stsp de->d_name) == -1) {
1139 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
1142 d572f586 2019-08-02 stsp cmp = got_path_cmp((*ie)->path, de_path,
1143 4d555405 2019-08-03 stsp got_fileindex_entry_path_len(*ie),
1144 dd038bc6 2021-09-21 thomas.ad strlen(path) + 1 + strlen(de->d_name));
1145 18831e78 2019-02-10 stsp free(de_path);
1146 d1f6d47b 2019-02-04 stsp if (cmp == 0) {
1147 7f91a133 2019-12-13 stsp err = cb->diff_old_new(cb_arg, *ie, de, path,
1151 d1f6d47b 2019-02-04 stsp *ie = walk_fileindex(fileindex, *ie);
1152 6fc93f37 2019-12-13 stsp err = walk_dir(&dle, fileindex, ie, dle, dirfd,
1153 6092c299 2021-10-04 thomas path, rootpath, repo, 0, cb, cb_arg);
1154 d1f6d47b 2019-02-04 stsp } else if (cmp < 0 ) {
1155 d1f6d47b 2019-02-04 stsp err = cb->diff_old(cb_arg, *ie, path);
1158 c577a9ce 2019-07-27 stsp *ie = walk_fileindex(fileindex, *ie);
1160 6092c299 2021-10-04 thomas err = cb->diff_new(&ignore, cb_arg, de, path,
1164 6fc93f37 2019-12-13 stsp err = walk_dir(&dle, fileindex, ie, dle, dirfd,
1165 6092c299 2021-10-04 thomas path, rootpath, repo, ignore, cb, cb_arg);
1169 554b91b1 2019-02-04 stsp } else if (*ie) {
1170 554b91b1 2019-02-04 stsp err = cb->diff_old(cb_arg, *ie, path);
1173 c577a9ce 2019-07-27 stsp *ie = walk_fileindex(fileindex, *ie);
1174 554b91b1 2019-02-04 stsp } else if (dle) {
1175 763e1377 2019-02-05 stsp de = dle->data;
1176 1f480907 2022-01-27 thomas err = dirent_type_fixup(de, rootpath, path);
1177 1f480907 2022-01-27 thomas if (err)
1179 6092c299 2021-10-04 thomas err = cb->diff_new(&ignore, cb_arg, de, path, dirfd);
1182 6fc93f37 2019-12-13 stsp err = walk_dir(&dle, fileindex, ie, dle, dirfd, path,
1183 6092c299 2021-10-04 thomas rootpath, repo, ignore, cb, cb_arg);
1189 d1f6d47b 2019-02-04 stsp return err;
1192 d1f6d47b 2019-02-04 stsp const struct got_error *
1193 965988c5 2019-12-16 stsp got_fileindex_diff_dir(struct got_fileindex *fileindex, int fd,
1194 927df6b7 2019-02-10 stsp const char *rootpath, const char *path, struct got_repository *repo,
1195 c7f4312f 2019-02-05 stsp struct got_fileindex_diff_dir_cb *cb, void *cb_arg)
1197 c577a9ce 2019-07-27 stsp const struct got_error *err;
1198 c577a9ce 2019-07-27 stsp struct got_fileindex_entry *ie;
1199 c577a9ce 2019-07-27 stsp struct got_pathlist_head dirlist;
1203 c577a9ce 2019-07-27 stsp TAILQ_INIT(&dirlist);
1206 965988c5 2019-12-16 stsp * Duplicate the file descriptor so we can call closedir() below
1207 965988c5 2019-12-16 stsp * without closing the file descriptor passed in by our caller.
1209 965988c5 2019-12-16 stsp fd2 = dup(fd);
1210 965988c5 2019-12-16 stsp if (fd2 == -1)
1211 965988c5 2019-12-16 stsp return got_error_from_errno2("dup", path);
1212 3dcf3e74 2020-01-28 stsp if (lseek(fd2, 0, SEEK_SET) == -1) {
1213 3dcf3e74 2020-01-28 stsp err = got_error_from_errno2("lseek", path);
1214 3dcf3e74 2020-01-28 stsp close(fd2);
1215 3dcf3e74 2020-01-28 stsp return err;
1217 965988c5 2019-12-16 stsp dir = fdopendir(fd2);
1218 3dcf3e74 2020-01-28 stsp if (dir == NULL) {
1219 3dcf3e74 2020-01-28 stsp err = got_error_from_errno2("fdopendir", path);
1220 3dcf3e74 2020-01-28 stsp close(fd2);
1221 3dcf3e74 2020-01-28 stsp return err;
1223 965988c5 2019-12-16 stsp err = read_dirlist(&dirlist, dir, path);
1224 965988c5 2019-12-16 stsp if (err) {
1225 965988c5 2019-12-16 stsp closedir(dir);
1226 c577a9ce 2019-07-27 stsp return err;
1229 c577a9ce 2019-07-27 stsp ie = RB_MIN(got_fileindex_tree, &fileindex->entries);
1230 c577a9ce 2019-07-27 stsp while (ie && !got_path_is_child(ie->path, path, strlen(path)))
1231 c577a9ce 2019-07-27 stsp ie = walk_fileindex(fileindex, ie);
1232 965988c5 2019-12-16 stsp err = diff_fileindex_dir(fileindex, &ie, &dirlist, dirfd(dir),
1233 965988c5 2019-12-16 stsp rootpath, path, repo, cb, cb_arg);
1235 965988c5 2019-12-16 stsp if (closedir(dir) == -1 && err == NULL)
1236 965988c5 2019-12-16 stsp err = got_error_from_errno2("closedir", path);
1237 c577a9ce 2019-07-27 stsp free_dirlist(&dirlist);
1238 c577a9ce 2019-07-27 stsp return err;
1241 7a9df742 2019-01-08 stsp RB_GENERATE(got_fileindex_tree, got_fileindex_entry, entry, got_fileindex_cmp);
