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/queue.h>
18 133d2798 2019-01-08 stsp #include <sys/tree.h>
19 c48c4a9c 2018-03-11 stsp #include <sys/stat.h>
21 03df25b3 2019-05-11 stsp #include <errno.h>
22 d1f6d47b 2019-02-04 stsp #include <dirent.h>
23 6fc93f37 2019-12-13 stsp #include <fcntl.h>
24 c48c4a9c 2018-03-11 stsp #include <stdio.h>
25 c48c4a9c 2018-03-11 stsp #include <stdlib.h>
26 c48c4a9c 2018-03-11 stsp #include <string.h>
27 c48c4a9c 2018-03-11 stsp #include <sha1.h>
28 69c6accf 2023-02-04 op #include <sha2.h>
29 c34b20a2 2018-03-12 stsp #include <endian.h>
30 133d2798 2019-01-08 stsp #include <limits.h>
31 6fc93f37 2019-12-13 stsp #include <unistd.h>
32 c442a90d 2019-03-10 stsp #include <uuid.h>
34 c48c4a9c 2018-03-11 stsp #include "got_error.h"
35 8da9e5f4 2019-01-12 stsp #include "got_object.h"
36 324d37e7 2019-05-11 stsp #include "got_path.h"
38 718b3ab0 2018-03-17 stsp #include "got_lib_fileindex.h"
39 b25ae4fa 2019-02-04 stsp #include "got_lib_worktree.h"
41 eb983b4b 2019-03-26 stsp /* got_fileindex_entry flags */
42 eb983b4b 2019-03-26 stsp #define GOT_FILEIDX_F_PATH_LEN 0x00000fff
43 83718700 2019-08-03 stsp #define GOT_FILEIDX_F_STAGE 0x0000f000
44 3cd04235 2019-08-03 stsp #define GOT_FILEIDX_F_STAGE_SHIFT 12
45 ddce0520 2019-03-26 stsp #define GOT_FILEIDX_F_NOT_FLUSHED 0x00010000
46 ddce0520 2019-03-26 stsp #define GOT_FILEIDX_F_NO_BLOB 0x00020000
47 ddce0520 2019-03-26 stsp #define GOT_FILEIDX_F_NO_COMMIT 0x00040000
48 2ec1f75b 2019-03-26 stsp #define GOT_FILEIDX_F_NO_FILE_ON_DISK 0x00080000
49 a46b9f33 2020-01-28 stsp #define GOT_FILEIDX_F_REMOVE_ON_FLUSH 0x00100000
50 a769b60b 2021-06-27 stsp #define GOT_FILEIDX_F_SKIPPED 0x00200000
52 133d2798 2019-01-08 stsp struct got_fileindex {
53 133d2798 2019-01-08 stsp struct got_fileindex_tree entries;
54 a46b9f33 2020-01-28 stsp int nentries; /* Does not include entries marked for removal. */
55 133d2798 2019-01-08 stsp #define GOT_FILEIDX_MAX_ENTRIES INT_MAX
59 0aeb8099 2020-07-23 stsp got_fileindex_entry_perms_get(struct got_fileindex_entry *ie)
61 4723f050 2020-07-23 stsp return ((ie->mode & GOT_FILEIDX_MODE_PERMS) >>
62 4723f050 2020-07-23 stsp GOT_FILEIDX_MODE_PERMS_SHIFT);
66 cf34e6e7 2020-07-23 stsp fileindex_entry_perms_set(struct got_fileindex_entry *ie, mode_t mode)
68 4723f050 2020-07-23 stsp ie->mode &= ~GOT_FILEIDX_MODE_PERMS;
69 4723f050 2020-07-23 stsp ie->mode |= ((mode << GOT_FILEIDX_MODE_PERMS_SHIFT) &
70 4723f050 2020-07-23 stsp GOT_FILEIDX_MODE_PERMS);
74 26a7fe28 2019-07-27 stsp got_fileindex_perms_to_st(struct got_fileindex_entry *ie)
76 0aeb8099 2020-07-23 stsp mode_t perms = got_fileindex_entry_perms_get(ie);
77 4723f050 2020-07-23 stsp int type = got_fileindex_entry_filetype_get(ie);
78 4723f050 2020-07-23 stsp uint32_t ftype;
80 4723f050 2020-07-23 stsp if (type == GOT_FILEIDX_MODE_REGULAR_FILE ||
81 4723f050 2020-07-23 stsp type == GOT_FILEIDX_MODE_BAD_SYMLINK)
82 4723f050 2020-07-23 stsp ftype = S_IFREG;
84 4723f050 2020-07-23 stsp ftype = S_IFLNK;
86 4723f050 2020-07-23 stsp return (ftype | (perms & (S_IRWXU | S_IRWXG | S_IRWXO)));
89 c48c4a9c 2018-03-11 stsp const struct got_error *
90 3f762da0 2019-08-03 stsp got_fileindex_entry_update(struct got_fileindex_entry *ie,
91 3093e2d7 2023-02-04 op int wt_fd, const char *ondisk_path, uint8_t *blob_hash,
92 3093e2d7 2023-02-04 op uint8_t *commit_hash, int update_timestamps)
94 c48c4a9c 2018-03-11 stsp struct stat sb;
96 437adc9d 2020-12-10 yzhong if (fstatat(wt_fd, ondisk_path, &sb, AT_SYMLINK_NOFOLLOW) != 0) {
97 b15816dd 2019-08-11 stsp if (!((ie->flags & GOT_FILEIDX_F_NO_FILE_ON_DISK) &&
98 b15816dd 2019-08-11 stsp errno == ENOENT))
99 437adc9d 2020-12-10 yzhong return got_error_from_errno2("fstatat", ondisk_path);
100 aa9ad276 2020-07-25 stsp sb.st_mode = GOT_DEFAULT_FILE_MODE;
102 03df25b3 2019-05-11 stsp if (sb.st_mode & S_IFDIR)
103 03df25b3 2019-05-11 stsp return got_error_set_errno(EISDIR, ondisk_path);
104 3f762da0 2019-08-03 stsp ie->flags &= ~GOT_FILEIDX_F_NO_FILE_ON_DISK;
108 3f762da0 2019-08-03 stsp if ((ie->flags & GOT_FILEIDX_F_NO_FILE_ON_DISK) == 0) {
109 13d9040b 2019-03-27 stsp if (update_timestamps) {
110 0823ffc2 2020-09-10 naddy ie->ctime_sec = sb.st_ctim.tv_sec;
111 0823ffc2 2020-09-10 naddy ie->ctime_nsec = sb.st_ctim.tv_nsec;
112 0823ffc2 2020-09-10 naddy ie->mtime_sec = sb.st_mtim.tv_sec;
113 0823ffc2 2020-09-10 naddy ie->mtime_nsec = sb.st_mtim.tv_nsec;
115 3f762da0 2019-08-03 stsp ie->uid = sb.st_uid;
116 3f762da0 2019-08-03 stsp ie->gid = sb.st_gid;
117 3f762da0 2019-08-03 stsp ie->size = (sb.st_size & 0xffffffff);
118 4723f050 2020-07-23 stsp if (S_ISLNK(sb.st_mode)) {
119 4723f050 2020-07-23 stsp got_fileindex_entry_filetype_set(ie,
120 4723f050 2020-07-23 stsp GOT_FILEIDX_MODE_SYMLINK);
121 cf34e6e7 2020-07-23 stsp fileindex_entry_perms_set(ie, 0);
123 4723f050 2020-07-23 stsp got_fileindex_entry_filetype_set(ie,
124 4723f050 2020-07-23 stsp GOT_FILEIDX_MODE_REGULAR_FILE);
125 cf34e6e7 2020-07-23 stsp fileindex_entry_perms_set(ie,
126 4723f050 2020-07-23 stsp sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO));
130 3093e2d7 2023-02-04 op if (blob_hash) {
131 3093e2d7 2023-02-04 op memcpy(ie->blob_hash, blob_hash, SHA1_DIGEST_LENGTH);
132 3f762da0 2019-08-03 stsp ie->flags &= ~GOT_FILEIDX_F_NO_BLOB;
134 3f762da0 2019-08-03 stsp ie->flags |= GOT_FILEIDX_F_NO_BLOB;
136 3093e2d7 2023-02-04 op if (commit_hash) {
137 3093e2d7 2023-02-04 op memcpy(ie->commit_hash, commit_hash, SHA1_DIGEST_LENGTH);
138 3f762da0 2019-08-03 stsp ie->flags &= ~GOT_FILEIDX_F_NO_COMMIT;
140 3f762da0 2019-08-03 stsp ie->flags |= GOT_FILEIDX_F_NO_COMMIT;
142 51514078 2018-12-25 stsp return NULL;
146 3f762da0 2019-08-03 stsp got_fileindex_entry_mark_deleted_from_disk(struct got_fileindex_entry *ie)
148 3f762da0 2019-08-03 stsp ie->flags |= GOT_FILEIDX_F_NO_FILE_ON_DISK;
152 a769b60b 2021-06-27 stsp got_fileindex_entry_mark_skipped(struct got_fileindex_entry *ie)
154 a769b60b 2021-06-27 stsp ie->flags |= GOT_FILEIDX_F_SKIPPED;
157 51514078 2018-12-25 stsp const struct got_error *
158 3f762da0 2019-08-03 stsp got_fileindex_entry_alloc(struct got_fileindex_entry **ie,
159 3969253a 2020-03-07 stsp const char *relpath)
161 51514078 2018-12-25 stsp size_t len;
163 3f762da0 2019-08-03 stsp *ie = calloc(1, sizeof(**ie));
164 3f762da0 2019-08-03 stsp if (*ie == NULL)
165 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
167 3f762da0 2019-08-03 stsp (*ie)->path = strdup(relpath);
168 3f762da0 2019-08-03 stsp if ((*ie)->path == NULL) {
169 638f9024 2019-05-13 stsp const struct got_error *err = got_error_from_errno("strdup");
171 3f762da0 2019-08-03 stsp *ie = NULL;
172 0a585a0d 2018-03-17 stsp return err;
175 4d555405 2019-08-03 stsp len = strlen(relpath);
176 a7f9d64d 2019-01-13 stsp if (len > GOT_FILEIDX_F_PATH_LEN)
177 a7f9d64d 2019-01-13 stsp len = GOT_FILEIDX_F_PATH_LEN;
178 3f762da0 2019-08-03 stsp (*ie)->flags |= len;
180 3969253a 2020-03-07 stsp return NULL;
184 3f762da0 2019-08-03 stsp got_fileindex_entry_free(struct got_fileindex_entry *ie)
186 3f762da0 2019-08-03 stsp free(ie->path);
191 4d555405 2019-08-03 stsp got_fileindex_entry_path_len(const struct got_fileindex_entry *ie)
193 4d555405 2019-08-03 stsp return (size_t)(ie->flags & GOT_FILEIDX_F_PATH_LEN);
197 0cb83759 2019-08-03 stsp got_fileindex_entry_stage_get(const struct got_fileindex_entry *ie)
199 df335242 2019-08-03 stsp return ((ie->flags & GOT_FILEIDX_F_STAGE) >> GOT_FILEIDX_F_STAGE_SHIFT);
203 0cb83759 2019-08-03 stsp got_fileindex_entry_stage_set(struct got_fileindex_entry *ie, uint32_t stage)
205 0cb83759 2019-08-03 stsp ie->flags &= ~GOT_FILEIDX_F_STAGE;
206 0cb83759 2019-08-03 stsp ie->flags |= ((stage << GOT_FILEIDX_F_STAGE_SHIFT) &
207 0cb83759 2019-08-03 stsp GOT_FILEIDX_F_STAGE);
211 2e1fa222 2020-07-23 stsp got_fileindex_entry_filetype_get(struct got_fileindex_entry *ie)
213 f5f1f9c2 2020-07-23 stsp return (ie->mode & GOT_FILEIDX_MODE_FILE_TYPE_ONDISK);
217 2e1fa222 2020-07-23 stsp got_fileindex_entry_filetype_set(struct got_fileindex_entry *ie, int type)
219 6131ab45 2020-07-23 stsp ie->mode &= ~GOT_FILEIDX_MODE_FILE_TYPE_ONDISK;
220 6131ab45 2020-07-23 stsp ie->mode |= (type & GOT_FILEIDX_MODE_FILE_TYPE_ONDISK);
224 c0df5966 2021-12-31 stsp got_fileindex_entry_staged_filetype_set(struct got_fileindex_entry *ie,
227 984c073d 2020-07-23 stsp ie->mode &= ~GOT_FILEIDX_MODE_FILE_TYPE_STAGED;
228 984c073d 2020-07-23 stsp ie->mode |= ((type << GOT_FILEIDX_MODE_FILE_TYPE_STAGED_SHIFT) &
229 984c073d 2020-07-23 stsp GOT_FILEIDX_MODE_FILE_TYPE_STAGED);
233 984c073d 2020-07-23 stsp got_fileindex_entry_staged_filetype_get(struct got_fileindex_entry *ie)
235 984c073d 2020-07-23 stsp return (ie->mode & GOT_FILEIDX_MODE_FILE_TYPE_STAGED) >>
236 984c073d 2020-07-23 stsp GOT_FILEIDX_MODE_FILE_TYPE_STAGED_SHIFT;
240 d00136be 2019-03-26 stsp got_fileindex_entry_has_blob(struct got_fileindex_entry *ie)
242 d00136be 2019-03-26 stsp return (ie->flags & GOT_FILEIDX_F_NO_BLOB) == 0;
246 d00136be 2019-03-26 stsp got_fileindex_entry_has_commit(struct got_fileindex_entry *ie)
248 d00136be 2019-03-26 stsp return (ie->flags & GOT_FILEIDX_F_NO_COMMIT) == 0;
252 2ec1f75b 2019-03-26 stsp got_fileindex_entry_has_file_on_disk(struct got_fileindex_entry *ie)
254 2ec1f75b 2019-03-26 stsp return (ie->flags & GOT_FILEIDX_F_NO_FILE_ON_DISK) == 0;
258 a769b60b 2021-06-27 stsp got_fileindex_entry_was_skipped(struct got_fileindex_entry *ie)
260 a769b60b 2021-06-27 stsp return (ie->flags & GOT_FILEIDX_F_SKIPPED) != 0;
263 50952927 2019-01-12 stsp static const struct got_error *
264 3f762da0 2019-08-03 stsp add_entry(struct got_fileindex *fileindex, struct got_fileindex_entry *ie)
266 133d2798 2019-01-08 stsp if (fileindex->nentries >= GOT_FILEIDX_MAX_ENTRIES)
267 133d2798 2019-01-08 stsp return got_error(GOT_ERR_NO_SPACE);
269 a7472cb3 2022-04-14 stsp if (RB_INSERT(got_fileindex_tree, &fileindex->entries, ie) != NULL)
270 a7472cb3 2022-04-14 stsp return got_error_path(ie->path, GOT_ERR_FILEIDX_DUP_ENTRY);
272 133d2798 2019-01-08 stsp fileindex->nentries++;
273 133d2798 2019-01-08 stsp return NULL;
276 50952927 2019-01-12 stsp const struct got_error *
277 50952927 2019-01-12 stsp got_fileindex_entry_add(struct got_fileindex *fileindex,
278 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie)
280 50952927 2019-01-12 stsp /* Flag this entry until it gets written out to disk. */
281 3f762da0 2019-08-03 stsp ie->flags |= GOT_FILEIDX_F_NOT_FLUSHED;
283 3f762da0 2019-08-03 stsp return add_entry(fileindex, ie);
287 512f0d0e 2019-01-02 stsp got_fileindex_entry_remove(struct got_fileindex *fileindex,
288 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie)
291 a46b9f33 2020-01-28 stsp * Removing an entry from the RB tree immediately breaks
292 a46b9f33 2020-01-28 stsp * in-progress iterations over file index entries.
293 8bd8568c 2020-04-24 stsp * So flag this entry for removal and remove it once the index
294 8bd8568c 2020-04-24 stsp * is written out to disk. Meanwhile, pretend this entry no longer
295 a46b9f33 2020-01-28 stsp * exists if we get queried for it again before then.
297 a46b9f33 2020-01-28 stsp ie->flags |= GOT_FILEIDX_F_REMOVE_ON_FLUSH;
298 133d2798 2019-01-08 stsp fileindex->nentries--;
301 51514078 2018-12-25 stsp struct got_fileindex_entry *
302 d6c87207 2019-08-02 stsp got_fileindex_entry_get(struct got_fileindex *fileindex, const char *path,
303 d6c87207 2019-08-02 stsp size_t path_len)
305 a46b9f33 2020-01-28 stsp struct got_fileindex_entry *ie;
306 133d2798 2019-01-08 stsp struct got_fileindex_entry key;
307 133d2798 2019-01-08 stsp memset(&key, 0, sizeof(key));
308 133d2798 2019-01-08 stsp key.path = (char *)path;
309 4d555405 2019-08-03 stsp key.flags = (path_len & GOT_FILEIDX_F_PATH_LEN);
310 a46b9f33 2020-01-28 stsp ie = RB_FIND(got_fileindex_tree, &fileindex->entries, &key);
311 a46b9f33 2020-01-28 stsp if (ie && (ie->flags & GOT_FILEIDX_F_REMOVE_ON_FLUSH))
312 a46b9f33 2020-01-28 stsp return NULL;
316 512f0d0e 2019-01-02 stsp const struct got_error *
317 e1ed7f77 2019-01-06 stsp got_fileindex_for_each_entry_safe(struct got_fileindex *fileindex,
318 b504a804 2019-01-08 stsp got_fileindex_cb cb, void *cb_arg)
320 133d2798 2019-01-08 stsp const struct got_error *err;
321 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie, *tmp;
323 3f762da0 2019-08-03 stsp RB_FOREACH_SAFE(ie, got_fileindex_tree, &fileindex->entries, tmp) {
324 a46b9f33 2020-01-28 stsp if (ie->flags & GOT_FILEIDX_F_REMOVE_ON_FLUSH)
326 3f762da0 2019-08-03 stsp err = (*cb)(cb_arg, ie);
328 133d2798 2019-01-08 stsp return err;
330 b504a804 2019-01-08 stsp return NULL;
333 133d2798 2019-01-08 stsp struct got_fileindex *
334 133d2798 2019-01-08 stsp got_fileindex_alloc(void)
336 133d2798 2019-01-08 stsp struct got_fileindex *fileindex;
338 133d2798 2019-01-08 stsp fileindex = calloc(1, sizeof(*fileindex));
339 133d2798 2019-01-08 stsp if (fileindex == NULL)
340 133d2798 2019-01-08 stsp return NULL;
342 133d2798 2019-01-08 stsp RB_INIT(&fileindex->entries);
343 133d2798 2019-01-08 stsp return fileindex;
347 7426bbfd 2018-12-24 stsp got_fileindex_free(struct got_fileindex *fileindex)
349 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie;
351 3f762da0 2019-08-03 stsp while ((ie = RB_MIN(got_fileindex_tree, &fileindex->entries))) {
352 3f762da0 2019-08-03 stsp RB_REMOVE(got_fileindex_tree, &fileindex->entries, ie);
353 3f762da0 2019-08-03 stsp got_fileindex_entry_free(ie);
355 9d31a1d8 2018-03-11 stsp free(fileindex);
358 c34b20a2 2018-03-12 stsp static const struct got_error *
359 c34b20a2 2018-03-12 stsp write_fileindex_val64(SHA1_CTX *ctx, uint64_t val, FILE *outfile)
363 c34b20a2 2018-03-12 stsp val = htobe64(val);
364 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)&val, sizeof(val));
365 3fe2daf1 2018-12-24 stsp n = fwrite(&val, 1, sizeof(val), outfile);
366 c34b20a2 2018-03-12 stsp if (n != sizeof(val))
367 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
368 c34b20a2 2018-03-12 stsp return NULL;
371 c34b20a2 2018-03-12 stsp static const struct got_error *
372 c34b20a2 2018-03-12 stsp write_fileindex_val32(SHA1_CTX *ctx, uint32_t val, FILE *outfile)
376 c34b20a2 2018-03-12 stsp val = htobe32(val);
377 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)&val, sizeof(val));
378 3fe2daf1 2018-12-24 stsp n = fwrite(&val, 1, sizeof(val), outfile);
379 c34b20a2 2018-03-12 stsp if (n != sizeof(val))
380 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
381 c34b20a2 2018-03-12 stsp return NULL;
384 c34b20a2 2018-03-12 stsp static const struct got_error *
385 c34b20a2 2018-03-12 stsp write_fileindex_val16(SHA1_CTX *ctx, uint16_t val, FILE *outfile)
389 c34b20a2 2018-03-12 stsp val = htobe16(val);
390 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)&val, sizeof(val));
391 3fe2daf1 2018-12-24 stsp n = fwrite(&val, 1, sizeof(val), outfile);
392 c34b20a2 2018-03-12 stsp if (n != sizeof(val))
393 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
394 c34b20a2 2018-03-12 stsp return NULL;
397 c34b20a2 2018-03-12 stsp static const struct got_error *
398 c34b20a2 2018-03-12 stsp write_fileindex_path(SHA1_CTX *ctx, const char *path, FILE *outfile)
400 3c5b70f2 2018-12-27 stsp size_t n, len, pad = 0;
401 c34b20a2 2018-03-12 stsp static const uint8_t zero[8] = { 0 };
403 c34b20a2 2018-03-12 stsp len = strlen(path);
404 3c5b70f2 2018-12-27 stsp while ((len + pad) % 8 != 0)
406 3c5b70f2 2018-12-27 stsp if (pad == 0)
407 3c5b70f2 2018-12-27 stsp pad = 8; /* NUL-terminate */
409 c34b20a2 2018-03-12 stsp SHA1Update(ctx, path, len);
410 c34b20a2 2018-03-12 stsp n = fwrite(path, 1, len, outfile);
411 c34b20a2 2018-03-12 stsp if (n != len)
412 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
413 c34b20a2 2018-03-12 stsp SHA1Update(ctx, zero, pad);
414 c34b20a2 2018-03-12 stsp n = fwrite(zero, 1, pad, outfile);
415 c34b20a2 2018-03-12 stsp if (n != pad)
416 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
417 c34b20a2 2018-03-12 stsp return NULL;
420 c34b20a2 2018-03-12 stsp static const struct got_error *
421 3f762da0 2019-08-03 stsp write_fileindex_entry(SHA1_CTX *ctx, struct got_fileindex_entry *ie,
422 c34b20a2 2018-03-12 stsp FILE *outfile)
424 c34b20a2 2018-03-12 stsp const struct got_error *err;
426 df335242 2019-08-03 stsp uint32_t stage;
428 3f762da0 2019-08-03 stsp err = write_fileindex_val64(ctx, ie->ctime_sec, outfile);
430 c34b20a2 2018-03-12 stsp return err;
431 3f762da0 2019-08-03 stsp err = write_fileindex_val64(ctx, ie->ctime_nsec, outfile);
433 c34b20a2 2018-03-12 stsp return err;
434 3f762da0 2019-08-03 stsp err = write_fileindex_val64(ctx, ie->mtime_sec, outfile);
436 c34b20a2 2018-03-12 stsp return err;
437 3f762da0 2019-08-03 stsp err = write_fileindex_val64(ctx, ie->mtime_nsec, outfile);
439 c34b20a2 2018-03-12 stsp return err;
441 3f762da0 2019-08-03 stsp err = write_fileindex_val32(ctx, ie->uid, outfile);
443 c34b20a2 2018-03-12 stsp return err;
444 3f762da0 2019-08-03 stsp err = write_fileindex_val32(ctx, ie->gid, outfile);
446 c34b20a2 2018-03-12 stsp return err;
447 3f762da0 2019-08-03 stsp err = write_fileindex_val32(ctx, ie->size, outfile);
449 c34b20a2 2018-03-12 stsp return err;
451 3f762da0 2019-08-03 stsp err = write_fileindex_val16(ctx, ie->mode, outfile);
453 c34b20a2 2018-03-12 stsp return err;
455 3093e2d7 2023-02-04 op SHA1Update(ctx, ie->blob_hash, SHA1_DIGEST_LENGTH);
456 3093e2d7 2023-02-04 op n = fwrite(ie->blob_hash, 1, SHA1_DIGEST_LENGTH, outfile);
457 fc76cabb 2018-12-25 stsp if (n != SHA1_DIGEST_LENGTH)
458 fc76cabb 2018-12-25 stsp return got_ferror(outfile, GOT_ERR_IO);
460 3093e2d7 2023-02-04 op SHA1Update(ctx, ie->commit_hash, SHA1_DIGEST_LENGTH);
461 3093e2d7 2023-02-04 op n = fwrite(ie->commit_hash, 1, SHA1_DIGEST_LENGTH, outfile);
462 c34b20a2 2018-03-12 stsp if (n != SHA1_DIGEST_LENGTH)
463 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
465 3f762da0 2019-08-03 stsp err = write_fileindex_val32(ctx, ie->flags, outfile);
467 c34b20a2 2018-03-12 stsp return err;
469 3f762da0 2019-08-03 stsp err = write_fileindex_path(ctx, ie->path, outfile);
471 df335242 2019-08-03 stsp return err;
473 0cb83759 2019-08-03 stsp stage = got_fileindex_entry_stage_get(ie);
474 df335242 2019-08-03 stsp if (stage == GOT_FILEIDX_STAGE_MODIFY ||
475 df335242 2019-08-03 stsp stage == GOT_FILEIDX_STAGE_ADD) {
476 3093e2d7 2023-02-04 op SHA1Update(ctx, ie->staged_blob_hash, SHA1_DIGEST_LENGTH);
477 3093e2d7 2023-02-04 op n = fwrite(ie->staged_blob_hash, 1, SHA1_DIGEST_LENGTH,
479 df335242 2019-08-03 stsp if (n != SHA1_DIGEST_LENGTH)
480 df335242 2019-08-03 stsp return got_ferror(outfile, GOT_ERR_IO);
483 df335242 2019-08-03 stsp return NULL;
486 9d31a1d8 2018-03-11 stsp const struct got_error *
487 9d31a1d8 2018-03-11 stsp got_fileindex_write(struct got_fileindex *fileindex, FILE *outfile)
489 b504a804 2019-01-08 stsp const struct got_error *err = NULL;
490 c34b20a2 2018-03-12 stsp struct got_fileindex_hdr hdr;
491 c34b20a2 2018-03-12 stsp SHA1_CTX ctx;
492 3093e2d7 2023-02-04 op uint8_t hash[SHA1_DIGEST_LENGTH];
494 8bd8568c 2020-04-24 stsp struct got_fileindex_entry *ie, *tmp;
496 c34b20a2 2018-03-12 stsp SHA1Init(&ctx);
498 c34b20a2 2018-03-12 stsp hdr.signature = htobe32(GOT_FILE_INDEX_SIGNATURE);
499 c34b20a2 2018-03-12 stsp hdr.version = htobe32(GOT_FILE_INDEX_VERSION);
500 133d2798 2019-01-08 stsp hdr.nentries = htobe32(fileindex->nentries);
502 a5744d71 2019-01-12 stsp SHA1Update(&ctx, (uint8_t *)&hdr.signature, sizeof(hdr.signature));
503 a5744d71 2019-01-12 stsp SHA1Update(&ctx, (uint8_t *)&hdr.version, sizeof(hdr.version));
504 a5744d71 2019-01-12 stsp SHA1Update(&ctx, (uint8_t *)&hdr.nentries, sizeof(hdr.nentries));
505 a5744d71 2019-01-12 stsp n = fwrite(&hdr.signature, 1, sizeof(hdr.signature), outfile);
506 a5744d71 2019-01-12 stsp if (n != sizeof(hdr.signature))
507 a5744d71 2019-01-12 stsp return got_ferror(outfile, GOT_ERR_IO);
508 a5744d71 2019-01-12 stsp n = fwrite(&hdr.version, 1, sizeof(hdr.version), outfile);
509 a5744d71 2019-01-12 stsp if (n != sizeof(hdr.version))
510 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
511 a5744d71 2019-01-12 stsp n = fwrite(&hdr.nentries, 1, sizeof(hdr.nentries), outfile);
512 a5744d71 2019-01-12 stsp if (n != sizeof(hdr.nentries))
513 a5744d71 2019-01-12 stsp return got_ferror(outfile, GOT_ERR_IO);
515 8bd8568c 2020-04-24 stsp RB_FOREACH_SAFE(ie, got_fileindex_tree, &fileindex->entries, tmp) {
516 3f762da0 2019-08-03 stsp ie->flags &= ~GOT_FILEIDX_F_NOT_FLUSHED;
517 a769b60b 2021-06-27 stsp ie->flags &= ~GOT_FILEIDX_F_SKIPPED;
518 8bd8568c 2020-04-24 stsp if (ie->flags & GOT_FILEIDX_F_REMOVE_ON_FLUSH) {
519 8bd8568c 2020-04-24 stsp RB_REMOVE(got_fileindex_tree, &fileindex->entries, ie);
520 8bd8568c 2020-04-24 stsp got_fileindex_entry_free(ie);
523 3f762da0 2019-08-03 stsp err = write_fileindex_entry(&ctx, ie, outfile);
525 133d2798 2019-01-08 stsp return err;
528 3093e2d7 2023-02-04 op SHA1Final(hash, &ctx);
529 3093e2d7 2023-02-04 op n = fwrite(hash, 1, sizeof(hash), outfile);
530 3093e2d7 2023-02-04 op if (n != sizeof(hash))
531 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
533 27d0e5bd 2019-01-12 stsp if (fflush(outfile) != 0)
534 638f9024 2019-05-13 stsp return got_error_from_errno("fflush");
536 52a74475 2018-12-24 stsp return NULL;
539 52a74475 2018-12-24 stsp static const struct got_error *
540 52a74475 2018-12-24 stsp read_fileindex_val64(uint64_t *val, SHA1_CTX *ctx, FILE *infile)
544 3fe2daf1 2018-12-24 stsp n = fread(val, 1, sizeof(*val), infile);
545 3fe2daf1 2018-12-24 stsp if (n != sizeof(*val))
546 27793341 2019-01-12 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
547 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)val, sizeof(*val));
548 9eb6a6b2 2018-12-24 stsp *val = be64toh(*val);
549 52a74475 2018-12-24 stsp return NULL;
552 52a74475 2018-12-24 stsp static const struct got_error *
553 52a74475 2018-12-24 stsp read_fileindex_val32(uint32_t *val, SHA1_CTX *ctx, FILE *infile)
557 3fe2daf1 2018-12-24 stsp n = fread(val, 1, sizeof(*val), infile);
558 3fe2daf1 2018-12-24 stsp if (n != sizeof(*val))
559 27793341 2019-01-12 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
560 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)val, sizeof(*val));
561 9eb6a6b2 2018-12-24 stsp *val = be32toh(*val);
562 52a74475 2018-12-24 stsp return NULL;
565 52a74475 2018-12-24 stsp static const struct got_error *
566 52a74475 2018-12-24 stsp read_fileindex_val16(uint16_t *val, SHA1_CTX *ctx, FILE *infile)
570 3fe2daf1 2018-12-24 stsp n = fread(val, 1, sizeof(*val), infile);
571 3fe2daf1 2018-12-24 stsp if (n != sizeof(*val))
572 27793341 2019-01-12 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
573 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)val, sizeof(*val));
574 9eb6a6b2 2018-12-24 stsp *val = be16toh(*val);
575 52a74475 2018-12-24 stsp return NULL;
578 52a74475 2018-12-24 stsp static const struct got_error *
579 52a74475 2018-12-24 stsp read_fileindex_path(char **path, SHA1_CTX *ctx, FILE *infile)
581 52a74475 2018-12-24 stsp const struct got_error *err = NULL;
582 6bf2c316 2019-08-02 stsp const size_t chunk_size = 8;
583 6bf2c316 2019-08-02 stsp size_t n, len = 0, totlen = chunk_size;
585 52a74475 2018-12-24 stsp *path = malloc(totlen);
586 52a74475 2018-12-24 stsp if (*path == NULL)
587 638f9024 2019-05-13 stsp return got_error_from_errno("malloc");
590 6bf2c316 2019-08-02 stsp if (len + chunk_size > totlen) {
591 6bf2c316 2019-08-02 stsp char *p = reallocarray(*path, totlen + chunk_size, 1);
592 52a74475 2018-12-24 stsp if (p == NULL) {
593 638f9024 2019-05-13 stsp err = got_error_from_errno("reallocarray");
596 6bf2c316 2019-08-02 stsp totlen += chunk_size;
599 6bf2c316 2019-08-02 stsp n = fread(*path + len, 1, chunk_size, infile);
600 6bf2c316 2019-08-02 stsp if (n != chunk_size) {
601 6bf2c316 2019-08-02 stsp err = got_ferror(infile, GOT_ERR_FILEIDX_BAD);
604 6bf2c316 2019-08-02 stsp SHA1Update(ctx, *path + len, chunk_size);
605 6bf2c316 2019-08-02 stsp len += chunk_size;
606 6bf2c316 2019-08-02 stsp } while (memchr(*path + len - chunk_size, '\0', chunk_size) == NULL);
609 52a74475 2018-12-24 stsp free(*path);
610 52a74475 2018-12-24 stsp *path = NULL;
612 52a74475 2018-12-24 stsp return err;
615 52a74475 2018-12-24 stsp static const struct got_error *
616 3f762da0 2019-08-03 stsp read_fileindex_entry(struct got_fileindex_entry **iep, SHA1_CTX *ctx,
617 df335242 2019-08-03 stsp FILE *infile, uint32_t version)
619 52a74475 2018-12-24 stsp const struct got_error *err;
620 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie;
623 3f762da0 2019-08-03 stsp *iep = NULL;
625 3f762da0 2019-08-03 stsp ie = calloc(1, sizeof(*ie));
626 3f762da0 2019-08-03 stsp if (ie == NULL)
627 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
629 3f762da0 2019-08-03 stsp err = read_fileindex_val64(&ie->ctime_sec, ctx, infile);
632 3f762da0 2019-08-03 stsp err = read_fileindex_val64(&ie->ctime_nsec, ctx, infile);
635 3f762da0 2019-08-03 stsp err = read_fileindex_val64(&ie->mtime_sec, ctx, infile);
638 3f762da0 2019-08-03 stsp err = read_fileindex_val64(&ie->mtime_nsec, ctx, infile);
642 3f762da0 2019-08-03 stsp err = read_fileindex_val32(&ie->uid, ctx, infile);
645 3f762da0 2019-08-03 stsp err = read_fileindex_val32(&ie->gid, ctx, infile);
648 3f762da0 2019-08-03 stsp err = read_fileindex_val32(&ie->size, ctx, infile);
652 3f762da0 2019-08-03 stsp err = read_fileindex_val16(&ie->mode, ctx, infile);
656 3093e2d7 2023-02-04 op n = fread(ie->blob_hash, 1, SHA1_DIGEST_LENGTH, infile);
657 52a74475 2018-12-24 stsp if (n != SHA1_DIGEST_LENGTH) {
658 27793341 2019-01-12 stsp err = got_ferror(infile, GOT_ERR_FILEIDX_BAD);
661 3093e2d7 2023-02-04 op SHA1Update(ctx, ie->blob_hash, SHA1_DIGEST_LENGTH);
663 3093e2d7 2023-02-04 op n = fread(ie->commit_hash, 1, SHA1_DIGEST_LENGTH, infile);
664 fc76cabb 2018-12-25 stsp if (n != SHA1_DIGEST_LENGTH) {
665 27793341 2019-01-12 stsp err = got_ferror(infile, GOT_ERR_FILEIDX_BAD);
668 3093e2d7 2023-02-04 op SHA1Update(ctx, ie->commit_hash, SHA1_DIGEST_LENGTH);
670 3f762da0 2019-08-03 stsp err = read_fileindex_val32(&ie->flags, ctx, infile);
674 3f762da0 2019-08-03 stsp err = read_fileindex_path(&ie->path, ctx, infile);
678 df335242 2019-08-03 stsp if (version >= 2) {
679 0cb83759 2019-08-03 stsp uint32_t stage = got_fileindex_entry_stage_get(ie);
680 df335242 2019-08-03 stsp if (stage == GOT_FILEIDX_STAGE_MODIFY ||
681 df335242 2019-08-03 stsp stage == GOT_FILEIDX_STAGE_ADD) {
682 3093e2d7 2023-02-04 op n = fread(ie->staged_blob_hash, 1, SHA1_DIGEST_LENGTH,
684 df335242 2019-08-03 stsp if (n != SHA1_DIGEST_LENGTH) {
685 df335242 2019-08-03 stsp err = got_ferror(infile, GOT_ERR_FILEIDX_BAD);
688 3093e2d7 2023-02-04 op SHA1Update(ctx, ie->staged_blob_hash, SHA1_DIGEST_LENGTH);
691 df335242 2019-08-03 stsp /* GOT_FILE_INDEX_VERSION 1 does not support staging. */
692 df335242 2019-08-03 stsp ie->flags &= ~GOT_FILEIDX_F_STAGE;
697 3f762da0 2019-08-03 stsp got_fileindex_entry_free(ie);
700 52a74475 2018-12-24 stsp return err;
703 52a74475 2018-12-24 stsp const struct got_error *
704 52a74475 2018-12-24 stsp got_fileindex_read(struct got_fileindex *fileindex, FILE *infile)
706 52a74475 2018-12-24 stsp const struct got_error *err = NULL;
707 52a74475 2018-12-24 stsp struct got_fileindex_hdr hdr;
708 52a74475 2018-12-24 stsp SHA1_CTX ctx;
709 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie;
710 3093e2d7 2023-02-04 op uint8_t hash_expected[SHA1_DIGEST_LENGTH];
711 3093e2d7 2023-02-04 op uint8_t hash[SHA1_DIGEST_LENGTH];
715 52a74475 2018-12-24 stsp SHA1Init(&ctx);
717 b6d05318 2019-01-13 stsp n = fread(&hdr.signature, 1, sizeof(hdr.signature), infile);
718 b6d05318 2019-01-13 stsp if (n != sizeof(hdr.signature)) {
719 b6d05318 2019-01-13 stsp if (n == 0) /* EOF */
720 b6d05318 2019-01-13 stsp return NULL;
721 b6d05318 2019-01-13 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
723 b6d05318 2019-01-13 stsp n = fread(&hdr.version, 1, sizeof(hdr.version), infile);
724 b6d05318 2019-01-13 stsp if (n != sizeof(hdr.version)) {
725 51514078 2018-12-25 stsp if (n == 0) /* EOF */
726 51514078 2018-12-25 stsp return NULL;
727 27793341 2019-01-12 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
729 b6d05318 2019-01-13 stsp n = fread(&hdr.nentries, 1, sizeof(hdr.nentries), infile);
730 b6d05318 2019-01-13 stsp if (n != sizeof(hdr.nentries)) {
731 b6d05318 2019-01-13 stsp if (n == 0) /* EOF */
732 b6d05318 2019-01-13 stsp return NULL;
733 b6d05318 2019-01-13 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
736 b6d05318 2019-01-13 stsp SHA1Update(&ctx, (uint8_t *)&hdr.signature, sizeof(hdr.signature));
737 b6d05318 2019-01-13 stsp SHA1Update(&ctx, (uint8_t *)&hdr.version, sizeof(hdr.version));
738 b6d05318 2019-01-13 stsp SHA1Update(&ctx, (uint8_t *)&hdr.nentries, sizeof(hdr.nentries));
740 9eb6a6b2 2018-12-24 stsp hdr.signature = be32toh(hdr.signature);
741 9eb6a6b2 2018-12-24 stsp hdr.version = be32toh(hdr.version);
742 9eb6a6b2 2018-12-24 stsp hdr.nentries = be32toh(hdr.nentries);
744 52a74475 2018-12-24 stsp if (hdr.signature != GOT_FILE_INDEX_SIGNATURE)
745 52a74475 2018-12-24 stsp return got_error(GOT_ERR_FILEIDX_SIG);
746 df335242 2019-08-03 stsp if (hdr.version > GOT_FILE_INDEX_VERSION)
747 52a74475 2018-12-24 stsp return got_error(GOT_ERR_FILEIDX_VER);
749 52a74475 2018-12-24 stsp for (i = 0; i < hdr.nentries; i++) {
750 df335242 2019-08-03 stsp err = read_fileindex_entry(&ie, &ctx, infile, hdr.version);
752 52a74475 2018-12-24 stsp return err;
753 3f762da0 2019-08-03 stsp err = add_entry(fileindex, ie);
755 52a74475 2018-12-24 stsp return err;
758 3093e2d7 2023-02-04 op n = fread(hash_expected, 1, sizeof(hash_expected), infile);
759 3093e2d7 2023-02-04 op if (n != sizeof(hash_expected))
760 27793341 2019-01-12 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
761 3093e2d7 2023-02-04 op SHA1Final(hash, &ctx);
762 3093e2d7 2023-02-04 op if (memcmp(hash, hash_expected, SHA1_DIGEST_LENGTH) != 0)
763 52a74475 2018-12-24 stsp return got_error(GOT_ERR_FILEIDX_CSUM);
765 9d31a1d8 2018-03-11 stsp return NULL;
768 c2ac9456 2019-03-15 stsp static struct got_fileindex_entry *
769 50952927 2019-01-12 stsp walk_fileindex(struct got_fileindex *fileindex, struct got_fileindex_entry *ie)
771 50952927 2019-01-12 stsp struct got_fileindex_entry *next;
773 50952927 2019-01-12 stsp next = RB_NEXT(got_fileindex_tree, &fileindex->entries, ie);
775 a46b9f33 2020-01-28 stsp /* Skip entries which were added or removed by diff callbacks. */
776 a46b9f33 2020-01-28 stsp while (next && (next->flags & (GOT_FILEIDX_F_NOT_FLUSHED |
777 a46b9f33 2020-01-28 stsp GOT_FILEIDX_F_REMOVE_ON_FLUSH)))
778 50952927 2019-01-12 stsp next = RB_NEXT(got_fileindex_tree, &fileindex->entries, next);
780 50952927 2019-01-12 stsp return next;
783 8da9e5f4 2019-01-12 stsp static const struct got_error *
784 56e0773d 2019-11-28 stsp diff_fileindex_tree(struct got_fileindex *, struct got_fileindex_entry **ie,
785 56e0773d 2019-11-28 stsp struct got_tree_object *tree, const char *, const char *,
786 c4cdcb68 2019-04-03 stsp struct got_repository *, struct got_fileindex_diff_tree_cb *, void *);
788 9d2a8e53 2019-01-28 stsp static const struct got_error *
789 8da9e5f4 2019-01-12 stsp walk_tree(struct got_tree_entry **next, struct got_fileindex *fileindex,
790 56e0773d 2019-11-28 stsp struct got_fileindex_entry **ie, struct got_tree_object *tree, int *tidx,
791 c4cdcb68 2019-04-03 stsp const char *path, const char *entry_name, struct got_repository *repo,
792 f44ffd20 2019-02-04 stsp struct got_fileindex_diff_tree_cb *cb, void *cb_arg)
794 8da9e5f4 2019-01-12 stsp const struct got_error *err = NULL;
795 56e0773d 2019-11-28 stsp struct got_tree_entry *te = got_object_tree_get_entry(tree, *tidx);
797 56e0773d 2019-11-28 stsp if (!got_object_tree_entry_is_submodule(te) &&
798 56e0773d 2019-11-28 stsp S_ISDIR(got_tree_entry_get_mode(te))) {
799 8da9e5f4 2019-01-12 stsp char *subpath;
800 8da9e5f4 2019-01-12 stsp struct got_tree_object *subtree;
802 8da9e5f4 2019-01-12 stsp if (asprintf(&subpath, "%s%s%s", path,
803 56e0773d 2019-11-28 stsp path[0] == '\0' ? "" : "/",
804 56e0773d 2019-11-28 stsp got_tree_entry_get_name(te)) == -1)
805 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
807 56e0773d 2019-11-28 stsp err = got_object_open_as_tree(&subtree, repo,
808 56e0773d 2019-11-28 stsp got_tree_entry_get_id(te));
810 8da9e5f4 2019-01-12 stsp free(subpath);
811 8da9e5f4 2019-01-12 stsp return err;
814 56e0773d 2019-11-28 stsp err = diff_fileindex_tree(fileindex, ie, subtree, subpath,
815 56e0773d 2019-11-28 stsp entry_name, repo, cb, cb_arg);
816 8da9e5f4 2019-01-12 stsp free(subpath);
817 8da9e5f4 2019-01-12 stsp got_object_tree_close(subtree);
819 8da9e5f4 2019-01-12 stsp return err;
823 56e0773d 2019-11-28 stsp *next = got_object_tree_get_entry(tree, *tidx);
824 8da9e5f4 2019-01-12 stsp return NULL;
827 8da9e5f4 2019-01-12 stsp static const struct got_error *
828 8da9e5f4 2019-01-12 stsp diff_fileindex_tree(struct got_fileindex *fileindex,
829 56e0773d 2019-11-28 stsp struct got_fileindex_entry **ie, struct got_tree_object *tree,
830 c4cdcb68 2019-04-03 stsp const char *path, const char *entry_name, struct got_repository *repo,
831 f44ffd20 2019-02-04 stsp struct got_fileindex_diff_tree_cb *cb, void *cb_arg)
833 8da9e5f4 2019-01-12 stsp const struct got_error *err = NULL;
834 8da9e5f4 2019-01-12 stsp struct got_tree_entry *te = NULL;
835 8da9e5f4 2019-01-12 stsp size_t path_len = strlen(path);
836 8da9e5f4 2019-01-12 stsp struct got_fileindex_entry *next;
837 56e0773d 2019-11-28 stsp int tidx = 0;
839 56e0773d 2019-11-28 stsp te = got_object_tree_get_entry(tree, tidx);
840 500cd40f 2019-02-04 stsp while ((*ie && got_path_is_child((*ie)->path, path, path_len)) || te) {
841 8da9e5f4 2019-01-12 stsp if (te && *ie) {
842 18831e78 2019-02-10 stsp char *te_path;
843 56e0773d 2019-11-28 stsp const char *te_name = got_tree_entry_get_name(te);
845 56e0773d 2019-11-28 stsp if (asprintf(&te_path, "%s/%s", path, te_name) == -1) {
846 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
849 d572f586 2019-08-02 stsp cmp = got_path_cmp((*ie)->path, te_path,
850 4d555405 2019-08-03 stsp got_fileindex_entry_path_len(*ie), strlen(te_path));
851 18831e78 2019-02-10 stsp free(te_path);
852 8da9e5f4 2019-01-12 stsp if (cmp == 0) {
853 c4cdcb68 2019-04-03 stsp if (got_path_is_child((*ie)->path, path,
854 63c5ca5d 2019-08-24 stsp path_len) &&
855 63c5ca5d 2019-08-24 stsp !got_object_tree_entry_is_submodule(te) &&
856 63c5ca5d 2019-08-24 stsp (entry_name == NULL ||
857 56e0773d 2019-11-28 stsp strcmp(te_name, entry_name) == 0)) {
858 c4cdcb68 2019-04-03 stsp err = cb->diff_old_new(cb_arg, *ie, te,
860 c4cdcb68 2019-04-03 stsp if (err || entry_name)
863 50952927 2019-01-12 stsp *ie = walk_fileindex(fileindex, *ie);
864 56e0773d 2019-11-28 stsp err = walk_tree(&te, fileindex, ie, tree, &tidx,
865 c4cdcb68 2019-04-03 stsp path, entry_name, repo, cb, cb_arg);
866 c4cdcb68 2019-04-03 stsp } else if (cmp < 0) {
867 50952927 2019-01-12 stsp next = walk_fileindex(fileindex, *ie);
868 c4cdcb68 2019-04-03 stsp if (got_path_is_child((*ie)->path, path,
869 194cb7cb 2021-01-19 stsp path_len) && entry_name == NULL) {
870 c4cdcb68 2019-04-03 stsp err = cb->diff_old(cb_arg, *ie, path);
871 c4cdcb68 2019-04-03 stsp if (err || entry_name)
874 8da9e5f4 2019-01-12 stsp *ie = next;
876 c4cdcb68 2019-04-03 stsp if ((entry_name == NULL ||
877 56e0773d 2019-11-28 stsp strcmp(te_name, entry_name) == 0)) {
878 c4cdcb68 2019-04-03 stsp err = cb->diff_new(cb_arg, te, path);
879 c4cdcb68 2019-04-03 stsp if (err || entry_name)
882 56e0773d 2019-11-28 stsp err = walk_tree(&te, fileindex, ie, tree, &tidx,
883 c4cdcb68 2019-04-03 stsp path, entry_name, repo, cb, cb_arg);
887 8da9e5f4 2019-01-12 stsp } else if (*ie) {
888 50952927 2019-01-12 stsp next = walk_fileindex(fileindex, *ie);
889 c4cdcb68 2019-04-03 stsp if (got_path_is_child((*ie)->path, path, path_len) &&
890 c4cdcb68 2019-04-03 stsp (entry_name == NULL ||
891 56e0773d 2019-11-28 stsp (te && strcmp(got_tree_entry_get_name(te),
892 56e0773d 2019-11-28 stsp entry_name) == 0))) {
893 c4cdcb68 2019-04-03 stsp err = cb->diff_old(cb_arg, *ie, path);
894 c4cdcb68 2019-04-03 stsp if (err || entry_name)
897 8da9e5f4 2019-01-12 stsp *ie = next;
898 8da9e5f4 2019-01-12 stsp } else if (te) {
899 63c5ca5d 2019-08-24 stsp if (!got_object_tree_entry_is_submodule(te) &&
900 63c5ca5d 2019-08-24 stsp (entry_name == NULL ||
901 56e0773d 2019-11-28 stsp strcmp(got_tree_entry_get_name(te), entry_name)
903 c4cdcb68 2019-04-03 stsp err = cb->diff_new(cb_arg, te, path);
904 c4cdcb68 2019-04-03 stsp if (err || entry_name)
907 56e0773d 2019-11-28 stsp err = walk_tree(&te, fileindex, ie, tree, &tidx, path,
908 c4cdcb68 2019-04-03 stsp entry_name, repo, cb, cb_arg);
914 8da9e5f4 2019-01-12 stsp return err;
917 8da9e5f4 2019-01-12 stsp const struct got_error *
918 8da9e5f4 2019-01-12 stsp got_fileindex_diff_tree(struct got_fileindex *fileindex,
919 c4cdcb68 2019-04-03 stsp struct got_tree_object *tree, const char *path, const char *entry_name,
920 c4cdcb68 2019-04-03 stsp struct got_repository *repo,
921 f44ffd20 2019-02-04 stsp struct got_fileindex_diff_tree_cb *cb, void *cb_arg)
923 30a076bc 2019-07-27 stsp struct got_fileindex_entry *ie;
924 30a076bc 2019-07-27 stsp ie = RB_MIN(got_fileindex_tree, &fileindex->entries);
925 30a076bc 2019-07-27 stsp while (ie && !got_path_is_child(ie->path, path, strlen(path)))
926 30a076bc 2019-07-27 stsp ie = walk_fileindex(fileindex, ie);
927 56e0773d 2019-11-28 stsp return diff_fileindex_tree(fileindex, &ie, tree, path, entry_name, repo,
928 30a076bc 2019-07-27 stsp cb, cb_arg);
931 d1f6d47b 2019-02-04 stsp static const struct got_error *
932 39beb6da 2019-07-27 stsp diff_fileindex_dir(struct got_fileindex *, struct got_fileindex_entry **,
933 6fc93f37 2019-12-13 stsp struct got_pathlist_head *, int, const char *, const char *,
934 c577a9ce 2019-07-27 stsp struct got_repository *, struct got_fileindex_diff_dir_cb *, void *);
936 c577a9ce 2019-07-27 stsp static const struct got_error *
937 965988c5 2019-12-16 stsp read_dirlist(struct got_pathlist_head *dirlist, DIR *dir, const char *path)
939 c577a9ce 2019-07-27 stsp const struct got_error *err = NULL;
940 c577a9ce 2019-07-27 stsp struct got_pathlist_entry *new = NULL;
941 c577a9ce 2019-07-27 stsp struct dirent *dep = NULL;
942 c577a9ce 2019-07-27 stsp struct dirent *de = NULL;
945 c577a9ce 2019-07-27 stsp de = malloc(sizeof(struct dirent) + NAME_MAX + 1);
946 c577a9ce 2019-07-27 stsp if (de == NULL) {
947 c577a9ce 2019-07-27 stsp err = got_error_from_errno("malloc");
951 c577a9ce 2019-07-27 stsp if (readdir_r(dir, de, &dep) != 0) {
952 c577a9ce 2019-07-27 stsp err = got_error_from_errno("readdir_r");
956 c577a9ce 2019-07-27 stsp if (dep == NULL) {
961 c577a9ce 2019-07-27 stsp if (strcmp(de->d_name, ".") == 0 ||
962 c577a9ce 2019-07-27 stsp strcmp(de->d_name, "..") == 0 ||
963 c577a9ce 2019-07-27 stsp (path[0] == '\0' &&
964 c577a9ce 2019-07-27 stsp strcmp(de->d_name, GOT_WORKTREE_GOT_DIR) == 0)) {
969 c577a9ce 2019-07-27 stsp err = got_pathlist_insert(&new, dirlist, de->d_name, de);
974 c577a9ce 2019-07-27 stsp if (new == NULL) {
975 c577a9ce 2019-07-27 stsp err = got_error(GOT_ERR_DIR_DUP_ENTRY);
981 c577a9ce 2019-07-27 stsp return err;
985 8f2ca62d 2021-10-13 stsp have_tracked_file_in_dir(struct got_fileindex *fileindex, const char *path)
987 8f2ca62d 2021-10-13 stsp struct got_fileindex_entry *ie;
988 8f2ca62d 2021-10-13 stsp size_t path_len = strlen(path);
991 8f2ca62d 2021-10-13 stsp ie = RB_ROOT(&fileindex->entries);
992 8f2ca62d 2021-10-13 stsp while (ie) {
993 8f2ca62d 2021-10-13 stsp if (got_path_is_child(ie->path, path, path_len))
995 8f2ca62d 2021-10-13 stsp cmp = got_path_cmp(path, ie->path, path_len,
996 8f2ca62d 2021-10-13 stsp got_fileindex_entry_path_len(ie));
997 8f2ca62d 2021-10-13 stsp if (cmp < 0)
998 8f2ca62d 2021-10-13 stsp ie = RB_LEFT(ie, entry);
999 8f2ca62d 2021-10-13 stsp else if (cmp > 0)
1000 8f2ca62d 2021-10-13 stsp ie = RB_RIGHT(ie, entry);
1008 d1f6d47b 2019-02-04 stsp static const struct got_error *
1009 f5d3d7af 2019-02-05 stsp walk_dir(struct got_pathlist_entry **next, struct got_fileindex *fileindex,
1010 965988c5 2019-12-16 stsp struct got_fileindex_entry **ie, struct got_pathlist_entry *dle, int fd,
1011 39beb6da 2019-07-27 stsp const char *path, const char *rootpath, struct got_repository *repo,
1012 62da3196 2021-10-01 stsp int ignore, struct got_fileindex_diff_dir_cb *cb, void *cb_arg)
1014 d1f6d47b 2019-02-04 stsp const struct got_error *err = NULL;
1015 f5d3d7af 2019-02-05 stsp struct dirent *de = dle->data;
1016 965988c5 2019-12-16 stsp DIR *subdir = NULL;
1017 6fc93f37 2019-12-13 stsp int subdirfd = -1;
1019 573463cc 2019-04-06 stsp *next = NULL;
1021 8f2ca62d 2021-10-13 stsp /* Must traverse ignored directories if they contain tracked files. */
1022 a47330a2 2022-01-27 stsp if (de->d_type == DT_DIR && ignore &&
1023 8f2ca62d 2021-10-13 stsp have_tracked_file_in_dir(fileindex, path))
1024 8f2ca62d 2021-10-13 stsp ignore = 0;
1026 a47330a2 2022-01-27 stsp if (de->d_type == DT_DIR && !ignore) {
1027 d1f6d47b 2019-02-04 stsp char *subpath;
1028 c7f4312f 2019-02-05 stsp char *subdirpath;
1029 c577a9ce 2019-07-27 stsp struct got_pathlist_head subdirlist;
1031 c577a9ce 2019-07-27 stsp TAILQ_INIT(&subdirlist);
1033 d1f6d47b 2019-02-04 stsp if (asprintf(&subpath, "%s%s%s", path,
1034 f5d3d7af 2019-02-05 stsp path[0] == '\0' ? "" : "/", de->d_name) == -1)
1035 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
1037 c7f4312f 2019-02-05 stsp if (asprintf(&subdirpath, "%s/%s", rootpath, subpath) == -1) {
1038 c7f4312f 2019-02-05 stsp free(subpath);
1039 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
1042 965988c5 2019-12-16 stsp subdirfd = openat(fd, de->d_name,
1043 e7ae0baf 2021-12-31 stsp O_RDONLY | O_NOFOLLOW | O_DIRECTORY | O_CLOEXEC);
1044 6fc93f37 2019-12-13 stsp if (subdirfd == -1) {
1045 40b289d7 2019-09-07 stsp if (errno == EACCES) {
1046 40b289d7 2019-09-07 stsp *next = TAILQ_NEXT(dle, entry);
1047 40b289d7 2019-09-07 stsp return NULL;
1049 965988c5 2019-12-16 stsp err = got_error_from_errno2("openat", subdirpath);
1050 d1f6d47b 2019-02-04 stsp free(subpath);
1051 c7f4312f 2019-02-05 stsp free(subdirpath);
1052 ef5e02fd 2019-08-11 stsp return err;
1055 965988c5 2019-12-16 stsp subdir = fdopendir(subdirfd);
1056 965988c5 2019-12-16 stsp if (subdir == NULL)
1057 965988c5 2019-12-16 stsp return got_error_from_errno2("fdopendir", path);
1058 965988c5 2019-12-16 stsp subdirfd = -1;
1059 965988c5 2019-12-16 stsp err = read_dirlist(&subdirlist, subdir, subdirpath);
1060 c577a9ce 2019-07-27 stsp if (err) {
1061 c577a9ce 2019-07-27 stsp free(subpath);
1062 c577a9ce 2019-07-27 stsp free(subdirpath);
1063 965988c5 2019-12-16 stsp closedir(subdir);
1064 c577a9ce 2019-07-27 stsp return err;
1066 965988c5 2019-12-16 stsp err = diff_fileindex_dir(fileindex, ie, &subdirlist,
1067 965988c5 2019-12-16 stsp dirfd(subdir), rootpath, subpath, repo, cb, cb_arg);
1068 965988c5 2019-12-16 stsp if (subdir && closedir(subdir) == -1 && err == NULL)
1069 965988c5 2019-12-16 stsp err = got_error_from_errno2("closedir", subdirpath);
1070 d1f6d47b 2019-02-04 stsp free(subpath);
1071 c7f4312f 2019-02-05 stsp free(subdirpath);
1072 d8bacb93 2023-01-10 mark got_pathlist_free(&subdirlist, GOT_PATHLIST_FREE_DATA);
1074 d1f6d47b 2019-02-04 stsp return err;
1077 f5d3d7af 2019-02-05 stsp *next = TAILQ_NEXT(dle, entry);
1078 d1f6d47b 2019-02-04 stsp return NULL;
1081 d1f6d47b 2019-02-04 stsp static const struct got_error *
1082 a47330a2 2022-01-27 stsp dirent_type_fixup(struct dirent *de, const char *rootpath, const char *path)
1084 a47330a2 2022-01-27 stsp const struct got_error *err;
1085 a47330a2 2022-01-27 stsp char *dir_path;
1088 a47330a2 2022-01-27 stsp if (de->d_type != DT_UNKNOWN)
1089 a47330a2 2022-01-27 stsp return NULL;
1091 a47330a2 2022-01-27 stsp /* DT_UNKNOWN occurs on NFS mounts without "readdir plus" RPC. */
1092 a47330a2 2022-01-27 stsp if (asprintf(&dir_path, "%s/%s", rootpath, path) == -1)
1093 a47330a2 2022-01-27 stsp return got_error_from_errno("asprintf");
1094 a47330a2 2022-01-27 stsp err = got_path_dirent_type(&type, dir_path, de);
1095 a47330a2 2022-01-27 stsp free(dir_path);
1097 a47330a2 2022-01-27 stsp return err;
1099 a47330a2 2022-01-27 stsp de->d_type = type;
1100 a47330a2 2022-01-27 stsp return NULL;
1103 a47330a2 2022-01-27 stsp static const struct got_error *
1104 d1f6d47b 2019-02-04 stsp diff_fileindex_dir(struct got_fileindex *fileindex,
1105 39beb6da 2019-07-27 stsp struct got_fileindex_entry **ie, struct got_pathlist_head *dirlist,
1106 6fc93f37 2019-12-13 stsp int dirfd, const char *rootpath, const char *path,
1107 6fc93f37 2019-12-13 stsp struct got_repository *repo,
1108 39beb6da 2019-07-27 stsp struct got_fileindex_diff_dir_cb *cb, void *cb_arg)
1110 d1f6d47b 2019-02-04 stsp const struct got_error *err = NULL;
1111 d1f6d47b 2019-02-04 stsp struct dirent *de = NULL;
1112 d1f6d47b 2019-02-04 stsp size_t path_len = strlen(path);
1113 f5d3d7af 2019-02-05 stsp struct got_pathlist_entry *dle;
1114 62da3196 2021-10-01 stsp int ignore;
1116 3143d852 2020-06-25 stsp if (cb->diff_traverse) {
1117 3143d852 2020-06-25 stsp err = cb->diff_traverse(cb_arg, path, dirfd);
1119 3143d852 2020-06-25 stsp return err;
1122 c577a9ce 2019-07-27 stsp dle = TAILQ_FIRST(dirlist);
1123 500cd40f 2019-02-04 stsp while ((*ie && got_path_is_child((*ie)->path, path, path_len)) || dle) {
1124 500cd40f 2019-02-04 stsp if (dle && *ie) {
1125 18831e78 2019-02-10 stsp char *de_path;
1127 f5d3d7af 2019-02-05 stsp de = dle->data;
1128 a47330a2 2022-01-27 stsp err = dirent_type_fixup(de, rootpath, path);
1131 18831e78 2019-02-10 stsp if (asprintf(&de_path, "%s/%s", path,
1132 18831e78 2019-02-10 stsp de->d_name) == -1) {
1133 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
1136 d572f586 2019-08-02 stsp cmp = got_path_cmp((*ie)->path, de_path,
1137 4d555405 2019-08-03 stsp got_fileindex_entry_path_len(*ie),
1138 4d555405 2019-08-03 stsp strlen(path) + 1 + de->d_namlen);
1139 18831e78 2019-02-10 stsp free(de_path);
1140 d1f6d47b 2019-02-04 stsp if (cmp == 0) {
1141 7f91a133 2019-12-13 stsp err = cb->diff_old_new(cb_arg, *ie, de, path,
1145 d1f6d47b 2019-02-04 stsp *ie = walk_fileindex(fileindex, *ie);
1146 6fc93f37 2019-12-13 stsp err = walk_dir(&dle, fileindex, ie, dle, dirfd,
1147 62da3196 2021-10-01 stsp path, rootpath, repo, 0, cb, cb_arg);
1148 d1f6d47b 2019-02-04 stsp } else if (cmp < 0 ) {
1149 d1f6d47b 2019-02-04 stsp err = cb->diff_old(cb_arg, *ie, path);
1152 c577a9ce 2019-07-27 stsp *ie = walk_fileindex(fileindex, *ie);
1154 62da3196 2021-10-01 stsp err = cb->diff_new(&ignore, cb_arg, de, path,
1158 6fc93f37 2019-12-13 stsp err = walk_dir(&dle, fileindex, ie, dle, dirfd,
1159 62da3196 2021-10-01 stsp path, rootpath, repo, ignore, cb, cb_arg);
1163 554b91b1 2019-02-04 stsp } else if (*ie) {
1164 554b91b1 2019-02-04 stsp err = cb->diff_old(cb_arg, *ie, path);
1167 c577a9ce 2019-07-27 stsp *ie = walk_fileindex(fileindex, *ie);
1168 554b91b1 2019-02-04 stsp } else if (dle) {
1169 763e1377 2019-02-05 stsp de = dle->data;
1170 a47330a2 2022-01-27 stsp err = dirent_type_fixup(de, rootpath, path);
1173 62da3196 2021-10-01 stsp err = cb->diff_new(&ignore, cb_arg, de, path, dirfd);
1176 6fc93f37 2019-12-13 stsp err = walk_dir(&dle, fileindex, ie, dle, dirfd, path,
1177 62da3196 2021-10-01 stsp rootpath, repo, ignore, cb, cb_arg);
1183 d1f6d47b 2019-02-04 stsp return err;
1186 d1f6d47b 2019-02-04 stsp const struct got_error *
1187 965988c5 2019-12-16 stsp got_fileindex_diff_dir(struct got_fileindex *fileindex, int fd,
1188 927df6b7 2019-02-10 stsp const char *rootpath, const char *path, struct got_repository *repo,
1189 c7f4312f 2019-02-05 stsp struct got_fileindex_diff_dir_cb *cb, void *cb_arg)
1191 c577a9ce 2019-07-27 stsp const struct got_error *err;
1192 c577a9ce 2019-07-27 stsp struct got_fileindex_entry *ie;
1193 c577a9ce 2019-07-27 stsp struct got_pathlist_head dirlist;
1197 c577a9ce 2019-07-27 stsp TAILQ_INIT(&dirlist);
1200 965988c5 2019-12-16 stsp * Duplicate the file descriptor so we can call closedir() below
1201 965988c5 2019-12-16 stsp * without closing the file descriptor passed in by our caller.
1203 965988c5 2019-12-16 stsp fd2 = dup(fd);
1204 965988c5 2019-12-16 stsp if (fd2 == -1)
1205 965988c5 2019-12-16 stsp return got_error_from_errno2("dup", path);
1206 3dcf3e74 2020-01-28 stsp if (lseek(fd2, 0, SEEK_SET) == -1) {
1207 3dcf3e74 2020-01-28 stsp err = got_error_from_errno2("lseek", path);
1208 3dcf3e74 2020-01-28 stsp close(fd2);
1209 3dcf3e74 2020-01-28 stsp return err;
1211 965988c5 2019-12-16 stsp dir = fdopendir(fd2);
1212 3dcf3e74 2020-01-28 stsp if (dir == NULL) {
1213 3dcf3e74 2020-01-28 stsp err = got_error_from_errno2("fdopendir", path);
1214 3dcf3e74 2020-01-28 stsp close(fd2);
1215 3dcf3e74 2020-01-28 stsp return err;
1217 965988c5 2019-12-16 stsp err = read_dirlist(&dirlist, dir, path);
1218 965988c5 2019-12-16 stsp if (err) {
1219 965988c5 2019-12-16 stsp closedir(dir);
1220 c577a9ce 2019-07-27 stsp return err;
1223 c577a9ce 2019-07-27 stsp ie = RB_MIN(got_fileindex_tree, &fileindex->entries);
1224 c577a9ce 2019-07-27 stsp while (ie && !got_path_is_child(ie->path, path, strlen(path)))
1225 c577a9ce 2019-07-27 stsp ie = walk_fileindex(fileindex, ie);
1226 965988c5 2019-12-16 stsp err = diff_fileindex_dir(fileindex, &ie, &dirlist, dirfd(dir),
1227 965988c5 2019-12-16 stsp rootpath, path, repo, cb, cb_arg);
1229 965988c5 2019-12-16 stsp if (closedir(dir) == -1 && err == NULL)
1230 965988c5 2019-12-16 stsp err = got_error_from_errno2("closedir", path);
1231 d8bacb93 2023-01-10 mark got_pathlist_free(&dirlist, GOT_PATHLIST_FREE_DATA);
1232 c577a9ce 2019-07-27 stsp return err;
1235 7a9df742 2019-01-08 stsp RB_GENERATE(got_fileindex_tree, got_fileindex_entry, entry, got_fileindex_cmp);
