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 c34b20a2 2018-03-12 stsp #include <endian.h>
29 133d2798 2019-01-08 stsp #include <limits.h>
30 6fc93f37 2019-12-13 stsp #include <unistd.h>
31 c442a90d 2019-03-10 stsp #include <uuid.h>
33 c48c4a9c 2018-03-11 stsp #include "got_error.h"
34 8da9e5f4 2019-01-12 stsp #include "got_object.h"
35 324d37e7 2019-05-11 stsp #include "got_path.h"
37 718b3ab0 2018-03-17 stsp #include "got_lib_fileindex.h"
38 b25ae4fa 2019-02-04 stsp #include "got_lib_worktree.h"
40 eb983b4b 2019-03-26 stsp /* got_fileindex_entry flags */
41 eb983b4b 2019-03-26 stsp #define GOT_FILEIDX_F_PATH_LEN 0x00000fff
42 83718700 2019-08-03 stsp #define GOT_FILEIDX_F_STAGE 0x0000f000
43 3cd04235 2019-08-03 stsp #define GOT_FILEIDX_F_STAGE_SHIFT 12
44 ddce0520 2019-03-26 stsp #define GOT_FILEIDX_F_NOT_FLUSHED 0x00010000
45 ddce0520 2019-03-26 stsp #define GOT_FILEIDX_F_NO_BLOB 0x00020000
46 ddce0520 2019-03-26 stsp #define GOT_FILEIDX_F_NO_COMMIT 0x00040000
47 2ec1f75b 2019-03-26 stsp #define GOT_FILEIDX_F_NO_FILE_ON_DISK 0x00080000
48 a46b9f33 2020-01-28 stsp #define GOT_FILEIDX_F_REMOVE_ON_FLUSH 0x00100000
50 133d2798 2019-01-08 stsp struct got_fileindex {
51 133d2798 2019-01-08 stsp struct got_fileindex_tree entries;
52 a46b9f33 2020-01-28 stsp int nentries; /* Does not include entries marked for removal. */
53 133d2798 2019-01-08 stsp #define GOT_FILEIDX_MAX_ENTRIES INT_MAX
57 26a7fe28 2019-07-27 stsp got_fileindex_perms_from_st(struct stat *sb)
59 26a7fe28 2019-07-27 stsp uint16_t perms = (sb->st_mode & (S_IRWXU | S_IRWXG | S_IRWXO));
60 26a7fe28 2019-07-27 stsp return (perms << GOT_FILEIDX_MODE_PERMS_SHIFT);
64 26a7fe28 2019-07-27 stsp got_fileindex_perms_to_st(struct got_fileindex_entry *ie)
66 26a7fe28 2019-07-27 stsp mode_t perms = (ie->mode >> GOT_FILEIDX_MODE_PERMS_SHIFT);
67 8957ae76 2019-08-08 stsp return (S_IFREG | (perms & (S_IRWXU | S_IRWXG | S_IRWXO)));
70 c48c4a9c 2018-03-11 stsp const struct got_error *
71 3f762da0 2019-08-03 stsp got_fileindex_entry_update(struct got_fileindex_entry *ie,
72 02c07007 2019-02-10 stsp const char *ondisk_path, uint8_t *blob_sha1, uint8_t *commit_sha1,
73 02c07007 2019-02-10 stsp int update_timestamps)
75 c48c4a9c 2018-03-11 stsp struct stat sb;
77 13d9040b 2019-03-27 stsp if (lstat(ondisk_path, &sb) != 0) {
78 b15816dd 2019-08-11 stsp if (!((ie->flags & GOT_FILEIDX_F_NO_FILE_ON_DISK) &&
79 b15816dd 2019-08-11 stsp errno == ENOENT))
80 638f9024 2019-05-13 stsp return got_error_from_errno2("lstat", ondisk_path);
82 03df25b3 2019-05-11 stsp if (sb.st_mode & S_IFDIR)
83 03df25b3 2019-05-11 stsp return got_error_set_errno(EISDIR, ondisk_path);
84 3f762da0 2019-08-03 stsp ie->flags &= ~GOT_FILEIDX_F_NO_FILE_ON_DISK;
88 3f762da0 2019-08-03 stsp if ((ie->flags & GOT_FILEIDX_F_NO_FILE_ON_DISK) == 0) {
89 13d9040b 2019-03-27 stsp if (update_timestamps) {
90 3f762da0 2019-08-03 stsp ie->ctime_sec = sb.st_ctime;
91 3f762da0 2019-08-03 stsp ie->ctime_nsec = sb.st_ctimensec;
92 3f762da0 2019-08-03 stsp ie->mtime_sec = sb.st_mtime;
93 3f762da0 2019-08-03 stsp ie->mtime_nsec = sb.st_mtimensec;
95 3f762da0 2019-08-03 stsp ie->uid = sb.st_uid;
96 3f762da0 2019-08-03 stsp ie->gid = sb.st_gid;
97 3f762da0 2019-08-03 stsp ie->size = (sb.st_size & 0xffffffff);
98 13d9040b 2019-03-27 stsp if (sb.st_mode & S_IFLNK)
99 3f762da0 2019-08-03 stsp ie->mode = GOT_FILEIDX_MODE_SYMLINK;
101 3f762da0 2019-08-03 stsp ie->mode = GOT_FILEIDX_MODE_REGULAR_FILE;
102 3f762da0 2019-08-03 stsp ie->mode |= got_fileindex_perms_from_st(&sb);
105 ddce0520 2019-03-26 stsp if (blob_sha1) {
106 3f762da0 2019-08-03 stsp memcpy(ie->blob_sha1, blob_sha1, SHA1_DIGEST_LENGTH);
107 3f762da0 2019-08-03 stsp ie->flags &= ~GOT_FILEIDX_F_NO_BLOB;
109 3f762da0 2019-08-03 stsp ie->flags |= GOT_FILEIDX_F_NO_BLOB;
111 ddce0520 2019-03-26 stsp if (commit_sha1) {
112 3f762da0 2019-08-03 stsp memcpy(ie->commit_sha1, commit_sha1, SHA1_DIGEST_LENGTH);
113 3f762da0 2019-08-03 stsp ie->flags &= ~GOT_FILEIDX_F_NO_COMMIT;
115 3f762da0 2019-08-03 stsp ie->flags |= GOT_FILEIDX_F_NO_COMMIT;
117 51514078 2018-12-25 stsp return NULL;
121 3f762da0 2019-08-03 stsp got_fileindex_entry_mark_deleted_from_disk(struct got_fileindex_entry *ie)
123 3f762da0 2019-08-03 stsp ie->flags |= GOT_FILEIDX_F_NO_FILE_ON_DISK;
126 51514078 2018-12-25 stsp const struct got_error *
127 3f762da0 2019-08-03 stsp got_fileindex_entry_alloc(struct got_fileindex_entry **ie,
128 3969253a 2020-03-07 stsp const char *relpath)
130 51514078 2018-12-25 stsp size_t len;
132 3f762da0 2019-08-03 stsp *ie = calloc(1, sizeof(**ie));
133 3f762da0 2019-08-03 stsp if (*ie == NULL)
134 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
136 3f762da0 2019-08-03 stsp (*ie)->path = strdup(relpath);
137 3f762da0 2019-08-03 stsp if ((*ie)->path == NULL) {
138 638f9024 2019-05-13 stsp const struct got_error *err = got_error_from_errno("strdup");
140 3f762da0 2019-08-03 stsp *ie = NULL;
141 0a585a0d 2018-03-17 stsp return err;
144 4d555405 2019-08-03 stsp len = strlen(relpath);
145 a7f9d64d 2019-01-13 stsp if (len > GOT_FILEIDX_F_PATH_LEN)
146 a7f9d64d 2019-01-13 stsp len = GOT_FILEIDX_F_PATH_LEN;
147 3f762da0 2019-08-03 stsp (*ie)->flags |= len;
149 3969253a 2020-03-07 stsp return NULL;
153 3f762da0 2019-08-03 stsp got_fileindex_entry_free(struct got_fileindex_entry *ie)
155 3f762da0 2019-08-03 stsp free(ie->path);
160 4d555405 2019-08-03 stsp got_fileindex_entry_path_len(const struct got_fileindex_entry *ie)
162 4d555405 2019-08-03 stsp return (size_t)(ie->flags & GOT_FILEIDX_F_PATH_LEN);
166 0cb83759 2019-08-03 stsp got_fileindex_entry_stage_get(const struct got_fileindex_entry *ie)
168 df335242 2019-08-03 stsp return ((ie->flags & GOT_FILEIDX_F_STAGE) >> GOT_FILEIDX_F_STAGE_SHIFT);
172 0cb83759 2019-08-03 stsp got_fileindex_entry_stage_set(struct got_fileindex_entry *ie, uint32_t stage)
174 0cb83759 2019-08-03 stsp ie->flags &= ~GOT_FILEIDX_F_STAGE;
175 0cb83759 2019-08-03 stsp ie->flags |= ((stage << GOT_FILEIDX_F_STAGE_SHIFT) &
176 0cb83759 2019-08-03 stsp GOT_FILEIDX_F_STAGE);
180 d00136be 2019-03-26 stsp got_fileindex_entry_has_blob(struct got_fileindex_entry *ie)
182 d00136be 2019-03-26 stsp return (ie->flags & GOT_FILEIDX_F_NO_BLOB) == 0;
186 d00136be 2019-03-26 stsp got_fileindex_entry_has_commit(struct got_fileindex_entry *ie)
188 d00136be 2019-03-26 stsp return (ie->flags & GOT_FILEIDX_F_NO_COMMIT) == 0;
192 2ec1f75b 2019-03-26 stsp got_fileindex_entry_has_file_on_disk(struct got_fileindex_entry *ie)
194 2ec1f75b 2019-03-26 stsp return (ie->flags & GOT_FILEIDX_F_NO_FILE_ON_DISK) == 0;
197 50952927 2019-01-12 stsp static const struct got_error *
198 3f762da0 2019-08-03 stsp add_entry(struct got_fileindex *fileindex, struct got_fileindex_entry *ie)
200 133d2798 2019-01-08 stsp if (fileindex->nentries >= GOT_FILEIDX_MAX_ENTRIES)
201 133d2798 2019-01-08 stsp return got_error(GOT_ERR_NO_SPACE);
203 3f762da0 2019-08-03 stsp RB_INSERT(got_fileindex_tree, &fileindex->entries, ie);
204 133d2798 2019-01-08 stsp fileindex->nentries++;
205 133d2798 2019-01-08 stsp return NULL;
208 50952927 2019-01-12 stsp const struct got_error *
209 50952927 2019-01-12 stsp got_fileindex_entry_add(struct got_fileindex *fileindex,
210 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie)
212 50952927 2019-01-12 stsp /* Flag this entry until it gets written out to disk. */
213 3f762da0 2019-08-03 stsp ie->flags |= GOT_FILEIDX_F_NOT_FLUSHED;
215 3f762da0 2019-08-03 stsp return add_entry(fileindex, ie);
219 512f0d0e 2019-01-02 stsp got_fileindex_entry_remove(struct got_fileindex *fileindex,
220 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie)
223 a46b9f33 2020-01-28 stsp * Removing an entry from the RB tree immediately breaks
224 a46b9f33 2020-01-28 stsp * in-progress iterations over file index entries.
225 a46b9f33 2020-01-28 stsp * So flag this entry for removal and skip it once the index
226 a46b9f33 2020-01-28 stsp * is written out to disk, and pretend this entry no longer
227 a46b9f33 2020-01-28 stsp * exists if we get queried for it again before then.
229 a46b9f33 2020-01-28 stsp ie->flags |= GOT_FILEIDX_F_REMOVE_ON_FLUSH;
230 133d2798 2019-01-08 stsp fileindex->nentries--;
233 51514078 2018-12-25 stsp struct got_fileindex_entry *
234 d6c87207 2019-08-02 stsp got_fileindex_entry_get(struct got_fileindex *fileindex, const char *path,
235 d6c87207 2019-08-02 stsp size_t path_len)
237 a46b9f33 2020-01-28 stsp struct got_fileindex_entry *ie;
238 133d2798 2019-01-08 stsp struct got_fileindex_entry key;
239 133d2798 2019-01-08 stsp memset(&key, 0, sizeof(key));
240 133d2798 2019-01-08 stsp key.path = (char *)path;
241 4d555405 2019-08-03 stsp key.flags = (path_len & GOT_FILEIDX_F_PATH_LEN);
242 a46b9f33 2020-01-28 stsp ie = RB_FIND(got_fileindex_tree, &fileindex->entries, &key);
243 a46b9f33 2020-01-28 stsp if (ie && (ie->flags & GOT_FILEIDX_F_REMOVE_ON_FLUSH))
244 a46b9f33 2020-01-28 stsp return NULL;
248 512f0d0e 2019-01-02 stsp const struct got_error *
249 e1ed7f77 2019-01-06 stsp got_fileindex_for_each_entry_safe(struct got_fileindex *fileindex,
250 b504a804 2019-01-08 stsp got_fileindex_cb cb, void *cb_arg)
252 133d2798 2019-01-08 stsp const struct got_error *err;
253 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie, *tmp;
255 3f762da0 2019-08-03 stsp RB_FOREACH_SAFE(ie, got_fileindex_tree, &fileindex->entries, tmp) {
256 a46b9f33 2020-01-28 stsp if (ie->flags & GOT_FILEIDX_F_REMOVE_ON_FLUSH)
258 3f762da0 2019-08-03 stsp err = (*cb)(cb_arg, ie);
260 133d2798 2019-01-08 stsp return err;
262 b504a804 2019-01-08 stsp return NULL;
265 133d2798 2019-01-08 stsp struct got_fileindex *
266 133d2798 2019-01-08 stsp got_fileindex_alloc(void)
268 133d2798 2019-01-08 stsp struct got_fileindex *fileindex;
270 133d2798 2019-01-08 stsp fileindex = calloc(1, sizeof(*fileindex));
271 133d2798 2019-01-08 stsp if (fileindex == NULL)
272 133d2798 2019-01-08 stsp return NULL;
274 133d2798 2019-01-08 stsp RB_INIT(&fileindex->entries);
275 133d2798 2019-01-08 stsp return fileindex;
279 7426bbfd 2018-12-24 stsp got_fileindex_free(struct got_fileindex *fileindex)
281 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie;
283 3f762da0 2019-08-03 stsp while ((ie = RB_MIN(got_fileindex_tree, &fileindex->entries))) {
284 3f762da0 2019-08-03 stsp RB_REMOVE(got_fileindex_tree, &fileindex->entries, ie);
285 3f762da0 2019-08-03 stsp got_fileindex_entry_free(ie);
287 9d31a1d8 2018-03-11 stsp free(fileindex);
290 c34b20a2 2018-03-12 stsp static const struct got_error *
291 c34b20a2 2018-03-12 stsp write_fileindex_val64(SHA1_CTX *ctx, uint64_t val, FILE *outfile)
295 c34b20a2 2018-03-12 stsp val = htobe64(val);
296 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)&val, sizeof(val));
297 3fe2daf1 2018-12-24 stsp n = fwrite(&val, 1, sizeof(val), outfile);
298 c34b20a2 2018-03-12 stsp if (n != sizeof(val))
299 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
300 c34b20a2 2018-03-12 stsp return NULL;
303 c34b20a2 2018-03-12 stsp static const struct got_error *
304 c34b20a2 2018-03-12 stsp write_fileindex_val32(SHA1_CTX *ctx, uint32_t val, FILE *outfile)
308 c34b20a2 2018-03-12 stsp val = htobe32(val);
309 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)&val, sizeof(val));
310 3fe2daf1 2018-12-24 stsp n = fwrite(&val, 1, sizeof(val), outfile);
311 c34b20a2 2018-03-12 stsp if (n != sizeof(val))
312 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
313 c34b20a2 2018-03-12 stsp return NULL;
316 c34b20a2 2018-03-12 stsp static const struct got_error *
317 c34b20a2 2018-03-12 stsp write_fileindex_val16(SHA1_CTX *ctx, uint16_t val, FILE *outfile)
321 c34b20a2 2018-03-12 stsp val = htobe16(val);
322 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)&val, sizeof(val));
323 3fe2daf1 2018-12-24 stsp n = fwrite(&val, 1, sizeof(val), outfile);
324 c34b20a2 2018-03-12 stsp if (n != sizeof(val))
325 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
326 c34b20a2 2018-03-12 stsp return NULL;
329 c34b20a2 2018-03-12 stsp static const struct got_error *
330 c34b20a2 2018-03-12 stsp write_fileindex_path(SHA1_CTX *ctx, const char *path, FILE *outfile)
332 3c5b70f2 2018-12-27 stsp size_t n, len, pad = 0;
333 c34b20a2 2018-03-12 stsp static const uint8_t zero[8] = { 0 };
335 c34b20a2 2018-03-12 stsp len = strlen(path);
336 3c5b70f2 2018-12-27 stsp while ((len + pad) % 8 != 0)
338 3c5b70f2 2018-12-27 stsp if (pad == 0)
339 3c5b70f2 2018-12-27 stsp pad = 8; /* NUL-terminate */
341 c34b20a2 2018-03-12 stsp SHA1Update(ctx, path, len);
342 c34b20a2 2018-03-12 stsp n = fwrite(path, 1, len, outfile);
343 c34b20a2 2018-03-12 stsp if (n != len)
344 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
345 c34b20a2 2018-03-12 stsp SHA1Update(ctx, zero, pad);
346 c34b20a2 2018-03-12 stsp n = fwrite(zero, 1, pad, outfile);
347 c34b20a2 2018-03-12 stsp if (n != pad)
348 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
349 c34b20a2 2018-03-12 stsp return NULL;
352 c34b20a2 2018-03-12 stsp static const struct got_error *
353 3f762da0 2019-08-03 stsp write_fileindex_entry(SHA1_CTX *ctx, struct got_fileindex_entry *ie,
354 c34b20a2 2018-03-12 stsp FILE *outfile)
356 c34b20a2 2018-03-12 stsp const struct got_error *err;
358 df335242 2019-08-03 stsp uint32_t stage;
360 3f762da0 2019-08-03 stsp err = write_fileindex_val64(ctx, ie->ctime_sec, outfile);
362 c34b20a2 2018-03-12 stsp return err;
363 3f762da0 2019-08-03 stsp err = write_fileindex_val64(ctx, ie->ctime_nsec, outfile);
365 c34b20a2 2018-03-12 stsp return err;
366 3f762da0 2019-08-03 stsp err = write_fileindex_val64(ctx, ie->mtime_sec, outfile);
368 c34b20a2 2018-03-12 stsp return err;
369 3f762da0 2019-08-03 stsp err = write_fileindex_val64(ctx, ie->mtime_nsec, outfile);
371 c34b20a2 2018-03-12 stsp return err;
373 3f762da0 2019-08-03 stsp err = write_fileindex_val32(ctx, ie->uid, outfile);
375 c34b20a2 2018-03-12 stsp return err;
376 3f762da0 2019-08-03 stsp err = write_fileindex_val32(ctx, ie->gid, outfile);
378 c34b20a2 2018-03-12 stsp return err;
379 3f762da0 2019-08-03 stsp err = write_fileindex_val32(ctx, ie->size, outfile);
381 c34b20a2 2018-03-12 stsp return err;
383 3f762da0 2019-08-03 stsp err = write_fileindex_val16(ctx, ie->mode, outfile);
385 c34b20a2 2018-03-12 stsp return err;
387 3f762da0 2019-08-03 stsp SHA1Update(ctx, ie->blob_sha1, SHA1_DIGEST_LENGTH);
388 3f762da0 2019-08-03 stsp n = fwrite(ie->blob_sha1, 1, SHA1_DIGEST_LENGTH, outfile);
389 fc76cabb 2018-12-25 stsp if (n != SHA1_DIGEST_LENGTH)
390 fc76cabb 2018-12-25 stsp return got_ferror(outfile, GOT_ERR_IO);
392 3f762da0 2019-08-03 stsp SHA1Update(ctx, ie->commit_sha1, SHA1_DIGEST_LENGTH);
393 3f762da0 2019-08-03 stsp n = fwrite(ie->commit_sha1, 1, SHA1_DIGEST_LENGTH, outfile);
394 c34b20a2 2018-03-12 stsp if (n != SHA1_DIGEST_LENGTH)
395 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
397 3f762da0 2019-08-03 stsp err = write_fileindex_val32(ctx, ie->flags, outfile);
399 c34b20a2 2018-03-12 stsp return err;
401 3f762da0 2019-08-03 stsp err = write_fileindex_path(ctx, ie->path, outfile);
403 df335242 2019-08-03 stsp return err;
405 0cb83759 2019-08-03 stsp stage = got_fileindex_entry_stage_get(ie);
406 df335242 2019-08-03 stsp if (stage == GOT_FILEIDX_STAGE_MODIFY ||
407 df335242 2019-08-03 stsp stage == GOT_FILEIDX_STAGE_ADD) {
408 df335242 2019-08-03 stsp SHA1Update(ctx, ie->staged_blob_sha1, SHA1_DIGEST_LENGTH);
409 df335242 2019-08-03 stsp n = fwrite(ie->staged_blob_sha1, 1, SHA1_DIGEST_LENGTH,
411 df335242 2019-08-03 stsp if (n != SHA1_DIGEST_LENGTH)
412 df335242 2019-08-03 stsp return got_ferror(outfile, GOT_ERR_IO);
415 df335242 2019-08-03 stsp return NULL;
418 9d31a1d8 2018-03-11 stsp const struct got_error *
419 9d31a1d8 2018-03-11 stsp got_fileindex_write(struct got_fileindex *fileindex, FILE *outfile)
421 b504a804 2019-01-08 stsp const struct got_error *err = NULL;
422 c34b20a2 2018-03-12 stsp struct got_fileindex_hdr hdr;
423 c34b20a2 2018-03-12 stsp SHA1_CTX ctx;
424 c34b20a2 2018-03-12 stsp uint8_t sha1[SHA1_DIGEST_LENGTH];
426 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie;
428 c34b20a2 2018-03-12 stsp SHA1Init(&ctx);
430 c34b20a2 2018-03-12 stsp hdr.signature = htobe32(GOT_FILE_INDEX_SIGNATURE);
431 c34b20a2 2018-03-12 stsp hdr.version = htobe32(GOT_FILE_INDEX_VERSION);
432 133d2798 2019-01-08 stsp hdr.nentries = htobe32(fileindex->nentries);
434 a5744d71 2019-01-12 stsp SHA1Update(&ctx, (uint8_t *)&hdr.signature, sizeof(hdr.signature));
435 a5744d71 2019-01-12 stsp SHA1Update(&ctx, (uint8_t *)&hdr.version, sizeof(hdr.version));
436 a5744d71 2019-01-12 stsp SHA1Update(&ctx, (uint8_t *)&hdr.nentries, sizeof(hdr.nentries));
437 a5744d71 2019-01-12 stsp n = fwrite(&hdr.signature, 1, sizeof(hdr.signature), outfile);
438 a5744d71 2019-01-12 stsp if (n != sizeof(hdr.signature))
439 a5744d71 2019-01-12 stsp return got_ferror(outfile, GOT_ERR_IO);
440 a5744d71 2019-01-12 stsp n = fwrite(&hdr.version, 1, sizeof(hdr.version), outfile);
441 a5744d71 2019-01-12 stsp if (n != sizeof(hdr.version))
442 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
443 a5744d71 2019-01-12 stsp n = fwrite(&hdr.nentries, 1, sizeof(hdr.nentries), outfile);
444 a5744d71 2019-01-12 stsp if (n != sizeof(hdr.nentries))
445 a5744d71 2019-01-12 stsp return got_ferror(outfile, GOT_ERR_IO);
447 3f762da0 2019-08-03 stsp RB_FOREACH(ie, got_fileindex_tree, &fileindex->entries) {
448 3f762da0 2019-08-03 stsp ie->flags &= ~GOT_FILEIDX_F_NOT_FLUSHED;
449 a46b9f33 2020-01-28 stsp if (ie->flags & GOT_FILEIDX_F_REMOVE_ON_FLUSH)
451 3f762da0 2019-08-03 stsp err = write_fileindex_entry(&ctx, ie, outfile);
453 133d2798 2019-01-08 stsp return err;
456 c34b20a2 2018-03-12 stsp SHA1Final(sha1, &ctx);
457 c34b20a2 2018-03-12 stsp n = fwrite(sha1, 1, sizeof(sha1), outfile);
458 c34b20a2 2018-03-12 stsp if (n != sizeof(sha1))
459 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
461 27d0e5bd 2019-01-12 stsp if (fflush(outfile) != 0)
462 638f9024 2019-05-13 stsp return got_error_from_errno("fflush");
464 52a74475 2018-12-24 stsp return NULL;
467 52a74475 2018-12-24 stsp static const struct got_error *
468 52a74475 2018-12-24 stsp read_fileindex_val64(uint64_t *val, SHA1_CTX *ctx, FILE *infile)
472 3fe2daf1 2018-12-24 stsp n = fread(val, 1, sizeof(*val), infile);
473 3fe2daf1 2018-12-24 stsp if (n != sizeof(*val))
474 27793341 2019-01-12 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
475 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)val, sizeof(*val));
476 9eb6a6b2 2018-12-24 stsp *val = be64toh(*val);
477 52a74475 2018-12-24 stsp return NULL;
480 52a74475 2018-12-24 stsp static const struct got_error *
481 52a74475 2018-12-24 stsp read_fileindex_val32(uint32_t *val, SHA1_CTX *ctx, FILE *infile)
485 3fe2daf1 2018-12-24 stsp n = fread(val, 1, sizeof(*val), infile);
486 3fe2daf1 2018-12-24 stsp if (n != sizeof(*val))
487 27793341 2019-01-12 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
488 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)val, sizeof(*val));
489 9eb6a6b2 2018-12-24 stsp *val = be32toh(*val);
490 52a74475 2018-12-24 stsp return NULL;
493 52a74475 2018-12-24 stsp static const struct got_error *
494 52a74475 2018-12-24 stsp read_fileindex_val16(uint16_t *val, SHA1_CTX *ctx, FILE *infile)
498 3fe2daf1 2018-12-24 stsp n = fread(val, 1, sizeof(*val), infile);
499 3fe2daf1 2018-12-24 stsp if (n != sizeof(*val))
500 27793341 2019-01-12 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
501 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)val, sizeof(*val));
502 9eb6a6b2 2018-12-24 stsp *val = be16toh(*val);
503 52a74475 2018-12-24 stsp return NULL;
506 52a74475 2018-12-24 stsp static const struct got_error *
507 52a74475 2018-12-24 stsp read_fileindex_path(char **path, SHA1_CTX *ctx, FILE *infile)
509 52a74475 2018-12-24 stsp const struct got_error *err = NULL;
510 6bf2c316 2019-08-02 stsp const size_t chunk_size = 8;
511 6bf2c316 2019-08-02 stsp size_t n, len = 0, totlen = chunk_size;
513 52a74475 2018-12-24 stsp *path = malloc(totlen);
514 52a74475 2018-12-24 stsp if (*path == NULL)
515 638f9024 2019-05-13 stsp return got_error_from_errno("malloc");
518 6bf2c316 2019-08-02 stsp if (len + chunk_size > totlen) {
519 6bf2c316 2019-08-02 stsp char *p = reallocarray(*path, totlen + chunk_size, 1);
520 52a74475 2018-12-24 stsp if (p == NULL) {
521 638f9024 2019-05-13 stsp err = got_error_from_errno("reallocarray");
524 6bf2c316 2019-08-02 stsp totlen += chunk_size;
527 6bf2c316 2019-08-02 stsp n = fread(*path + len, 1, chunk_size, infile);
528 6bf2c316 2019-08-02 stsp if (n != chunk_size) {
529 6bf2c316 2019-08-02 stsp err = got_ferror(infile, GOT_ERR_FILEIDX_BAD);
532 6bf2c316 2019-08-02 stsp SHA1Update(ctx, *path + len, chunk_size);
533 6bf2c316 2019-08-02 stsp len += chunk_size;
534 6bf2c316 2019-08-02 stsp } while (memchr(*path + len - chunk_size, '\0', chunk_size) == NULL);
537 52a74475 2018-12-24 stsp free(*path);
538 52a74475 2018-12-24 stsp *path = NULL;
540 52a74475 2018-12-24 stsp return err;
543 52a74475 2018-12-24 stsp static const struct got_error *
544 3f762da0 2019-08-03 stsp read_fileindex_entry(struct got_fileindex_entry **iep, SHA1_CTX *ctx,
545 df335242 2019-08-03 stsp FILE *infile, uint32_t version)
547 52a74475 2018-12-24 stsp const struct got_error *err;
548 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie;
551 3f762da0 2019-08-03 stsp *iep = NULL;
553 3f762da0 2019-08-03 stsp ie = calloc(1, sizeof(*ie));
554 3f762da0 2019-08-03 stsp if (ie == NULL)
555 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
557 3f762da0 2019-08-03 stsp err = read_fileindex_val64(&ie->ctime_sec, ctx, infile);
560 3f762da0 2019-08-03 stsp err = read_fileindex_val64(&ie->ctime_nsec, ctx, infile);
563 3f762da0 2019-08-03 stsp err = read_fileindex_val64(&ie->mtime_sec, ctx, infile);
566 3f762da0 2019-08-03 stsp err = read_fileindex_val64(&ie->mtime_nsec, ctx, infile);
570 3f762da0 2019-08-03 stsp err = read_fileindex_val32(&ie->uid, ctx, infile);
573 3f762da0 2019-08-03 stsp err = read_fileindex_val32(&ie->gid, ctx, infile);
576 3f762da0 2019-08-03 stsp err = read_fileindex_val32(&ie->size, ctx, infile);
580 3f762da0 2019-08-03 stsp err = read_fileindex_val16(&ie->mode, ctx, infile);
584 3f762da0 2019-08-03 stsp n = fread(ie->blob_sha1, 1, SHA1_DIGEST_LENGTH, infile);
585 52a74475 2018-12-24 stsp if (n != SHA1_DIGEST_LENGTH) {
586 27793341 2019-01-12 stsp err = got_ferror(infile, GOT_ERR_FILEIDX_BAD);
589 3f762da0 2019-08-03 stsp SHA1Update(ctx, ie->blob_sha1, SHA1_DIGEST_LENGTH);
591 3f762da0 2019-08-03 stsp n = fread(ie->commit_sha1, 1, SHA1_DIGEST_LENGTH, infile);
592 fc76cabb 2018-12-25 stsp if (n != SHA1_DIGEST_LENGTH) {
593 27793341 2019-01-12 stsp err = got_ferror(infile, GOT_ERR_FILEIDX_BAD);
596 3f762da0 2019-08-03 stsp SHA1Update(ctx, ie->commit_sha1, SHA1_DIGEST_LENGTH);
598 3f762da0 2019-08-03 stsp err = read_fileindex_val32(&ie->flags, ctx, infile);
602 3f762da0 2019-08-03 stsp err = read_fileindex_path(&ie->path, ctx, infile);
606 df335242 2019-08-03 stsp if (version >= 2) {
607 0cb83759 2019-08-03 stsp uint32_t stage = got_fileindex_entry_stage_get(ie);
608 df335242 2019-08-03 stsp if (stage == GOT_FILEIDX_STAGE_MODIFY ||
609 df335242 2019-08-03 stsp stage == GOT_FILEIDX_STAGE_ADD) {
610 df335242 2019-08-03 stsp n = fread(ie->staged_blob_sha1, 1, SHA1_DIGEST_LENGTH,
612 df335242 2019-08-03 stsp if (n != SHA1_DIGEST_LENGTH) {
613 df335242 2019-08-03 stsp err = got_ferror(infile, GOT_ERR_FILEIDX_BAD);
616 df335242 2019-08-03 stsp SHA1Update(ctx, ie->staged_blob_sha1, SHA1_DIGEST_LENGTH);
619 df335242 2019-08-03 stsp /* GOT_FILE_INDEX_VERSION 1 does not support staging. */
620 df335242 2019-08-03 stsp ie->flags &= ~GOT_FILEIDX_F_STAGE;
625 3f762da0 2019-08-03 stsp got_fileindex_entry_free(ie);
628 52a74475 2018-12-24 stsp return err;
631 52a74475 2018-12-24 stsp const struct got_error *
632 52a74475 2018-12-24 stsp got_fileindex_read(struct got_fileindex *fileindex, FILE *infile)
634 52a74475 2018-12-24 stsp const struct got_error *err = NULL;
635 52a74475 2018-12-24 stsp struct got_fileindex_hdr hdr;
636 52a74475 2018-12-24 stsp SHA1_CTX ctx;
637 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie;
638 52a74475 2018-12-24 stsp uint8_t sha1_expected[SHA1_DIGEST_LENGTH];
639 52a74475 2018-12-24 stsp uint8_t sha1[SHA1_DIGEST_LENGTH];
643 52a74475 2018-12-24 stsp SHA1Init(&ctx);
645 b6d05318 2019-01-13 stsp n = fread(&hdr.signature, 1, sizeof(hdr.signature), infile);
646 b6d05318 2019-01-13 stsp if (n != sizeof(hdr.signature)) {
647 b6d05318 2019-01-13 stsp if (n == 0) /* EOF */
648 b6d05318 2019-01-13 stsp return NULL;
649 b6d05318 2019-01-13 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
651 b6d05318 2019-01-13 stsp n = fread(&hdr.version, 1, sizeof(hdr.version), infile);
652 b6d05318 2019-01-13 stsp if (n != sizeof(hdr.version)) {
653 51514078 2018-12-25 stsp if (n == 0) /* EOF */
654 51514078 2018-12-25 stsp return NULL;
655 27793341 2019-01-12 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
657 b6d05318 2019-01-13 stsp n = fread(&hdr.nentries, 1, sizeof(hdr.nentries), infile);
658 b6d05318 2019-01-13 stsp if (n != sizeof(hdr.nentries)) {
659 b6d05318 2019-01-13 stsp if (n == 0) /* EOF */
660 b6d05318 2019-01-13 stsp return NULL;
661 b6d05318 2019-01-13 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
664 b6d05318 2019-01-13 stsp SHA1Update(&ctx, (uint8_t *)&hdr.signature, sizeof(hdr.signature));
665 b6d05318 2019-01-13 stsp SHA1Update(&ctx, (uint8_t *)&hdr.version, sizeof(hdr.version));
666 b6d05318 2019-01-13 stsp SHA1Update(&ctx, (uint8_t *)&hdr.nentries, sizeof(hdr.nentries));
668 9eb6a6b2 2018-12-24 stsp hdr.signature = be32toh(hdr.signature);
669 9eb6a6b2 2018-12-24 stsp hdr.version = be32toh(hdr.version);
670 9eb6a6b2 2018-12-24 stsp hdr.nentries = be32toh(hdr.nentries);
672 52a74475 2018-12-24 stsp if (hdr.signature != GOT_FILE_INDEX_SIGNATURE)
673 52a74475 2018-12-24 stsp return got_error(GOT_ERR_FILEIDX_SIG);
674 df335242 2019-08-03 stsp if (hdr.version > GOT_FILE_INDEX_VERSION)
675 52a74475 2018-12-24 stsp return got_error(GOT_ERR_FILEIDX_VER);
677 52a74475 2018-12-24 stsp for (i = 0; i < hdr.nentries; i++) {
678 df335242 2019-08-03 stsp err = read_fileindex_entry(&ie, &ctx, infile, hdr.version);
680 52a74475 2018-12-24 stsp return err;
681 3f762da0 2019-08-03 stsp err = add_entry(fileindex, ie);
683 52a74475 2018-12-24 stsp return err;
686 52a74475 2018-12-24 stsp n = fread(sha1_expected, 1, sizeof(sha1_expected), infile);
687 52a74475 2018-12-24 stsp if (n != sizeof(sha1_expected))
688 27793341 2019-01-12 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
689 52a74475 2018-12-24 stsp SHA1Final(sha1, &ctx);
690 52a74475 2018-12-24 stsp if (memcmp(sha1, sha1_expected, SHA1_DIGEST_LENGTH) != 0)
691 52a74475 2018-12-24 stsp return got_error(GOT_ERR_FILEIDX_CSUM);
693 9d31a1d8 2018-03-11 stsp return NULL;
696 c2ac9456 2019-03-15 stsp static struct got_fileindex_entry *
697 50952927 2019-01-12 stsp walk_fileindex(struct got_fileindex *fileindex, struct got_fileindex_entry *ie)
699 50952927 2019-01-12 stsp struct got_fileindex_entry *next;
701 50952927 2019-01-12 stsp next = RB_NEXT(got_fileindex_tree, &fileindex->entries, ie);
703 a46b9f33 2020-01-28 stsp /* Skip entries which were added or removed by diff callbacks. */
704 a46b9f33 2020-01-28 stsp while (next && (next->flags & (GOT_FILEIDX_F_NOT_FLUSHED |
705 a46b9f33 2020-01-28 stsp GOT_FILEIDX_F_REMOVE_ON_FLUSH)))
706 50952927 2019-01-12 stsp next = RB_NEXT(got_fileindex_tree, &fileindex->entries, next);
708 50952927 2019-01-12 stsp return next;
711 8da9e5f4 2019-01-12 stsp static const struct got_error *
712 56e0773d 2019-11-28 stsp diff_fileindex_tree(struct got_fileindex *, struct got_fileindex_entry **ie,
713 56e0773d 2019-11-28 stsp struct got_tree_object *tree, const char *, const char *,
714 c4cdcb68 2019-04-03 stsp struct got_repository *, struct got_fileindex_diff_tree_cb *, void *);
716 9d2a8e53 2019-01-28 stsp static const struct got_error *
717 8da9e5f4 2019-01-12 stsp walk_tree(struct got_tree_entry **next, struct got_fileindex *fileindex,
718 56e0773d 2019-11-28 stsp struct got_fileindex_entry **ie, struct got_tree_object *tree, int *tidx,
719 c4cdcb68 2019-04-03 stsp const char *path, const char *entry_name, struct got_repository *repo,
720 f44ffd20 2019-02-04 stsp struct got_fileindex_diff_tree_cb *cb, void *cb_arg)
722 8da9e5f4 2019-01-12 stsp const struct got_error *err = NULL;
723 56e0773d 2019-11-28 stsp struct got_tree_entry *te = got_object_tree_get_entry(tree, *tidx);
725 56e0773d 2019-11-28 stsp if (!got_object_tree_entry_is_submodule(te) &&
726 56e0773d 2019-11-28 stsp S_ISDIR(got_tree_entry_get_mode(te))) {
727 8da9e5f4 2019-01-12 stsp char *subpath;
728 8da9e5f4 2019-01-12 stsp struct got_tree_object *subtree;
730 8da9e5f4 2019-01-12 stsp if (asprintf(&subpath, "%s%s%s", path,
731 56e0773d 2019-11-28 stsp path[0] == '\0' ? "" : "/",
732 56e0773d 2019-11-28 stsp got_tree_entry_get_name(te)) == -1)
733 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
735 56e0773d 2019-11-28 stsp err = got_object_open_as_tree(&subtree, repo,
736 56e0773d 2019-11-28 stsp got_tree_entry_get_id(te));
738 8da9e5f4 2019-01-12 stsp free(subpath);
739 8da9e5f4 2019-01-12 stsp return err;
742 56e0773d 2019-11-28 stsp err = diff_fileindex_tree(fileindex, ie, subtree, subpath,
743 56e0773d 2019-11-28 stsp entry_name, repo, cb, cb_arg);
744 8da9e5f4 2019-01-12 stsp free(subpath);
745 8da9e5f4 2019-01-12 stsp got_object_tree_close(subtree);
747 8da9e5f4 2019-01-12 stsp return err;
751 56e0773d 2019-11-28 stsp *next = got_object_tree_get_entry(tree, *tidx);
752 8da9e5f4 2019-01-12 stsp return NULL;
755 8da9e5f4 2019-01-12 stsp static const struct got_error *
756 8da9e5f4 2019-01-12 stsp diff_fileindex_tree(struct got_fileindex *fileindex,
757 56e0773d 2019-11-28 stsp struct got_fileindex_entry **ie, struct got_tree_object *tree,
758 c4cdcb68 2019-04-03 stsp const char *path, const char *entry_name, struct got_repository *repo,
759 f44ffd20 2019-02-04 stsp struct got_fileindex_diff_tree_cb *cb, void *cb_arg)
761 8da9e5f4 2019-01-12 stsp const struct got_error *err = NULL;
762 8da9e5f4 2019-01-12 stsp struct got_tree_entry *te = NULL;
763 8da9e5f4 2019-01-12 stsp size_t path_len = strlen(path);
764 8da9e5f4 2019-01-12 stsp struct got_fileindex_entry *next;
765 56e0773d 2019-11-28 stsp int tidx = 0;
767 56e0773d 2019-11-28 stsp te = got_object_tree_get_entry(tree, tidx);
768 500cd40f 2019-02-04 stsp while ((*ie && got_path_is_child((*ie)->path, path, path_len)) || te) {
769 8da9e5f4 2019-01-12 stsp if (te && *ie) {
770 18831e78 2019-02-10 stsp char *te_path;
771 56e0773d 2019-11-28 stsp const char *te_name = got_tree_entry_get_name(te);
773 56e0773d 2019-11-28 stsp if (asprintf(&te_path, "%s/%s", path, te_name) == -1) {
774 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
777 d572f586 2019-08-02 stsp cmp = got_path_cmp((*ie)->path, te_path,
778 4d555405 2019-08-03 stsp got_fileindex_entry_path_len(*ie), strlen(te_path));
779 18831e78 2019-02-10 stsp free(te_path);
780 8da9e5f4 2019-01-12 stsp if (cmp == 0) {
781 c4cdcb68 2019-04-03 stsp if (got_path_is_child((*ie)->path, path,
782 63c5ca5d 2019-08-24 stsp path_len) &&
783 63c5ca5d 2019-08-24 stsp !got_object_tree_entry_is_submodule(te) &&
784 63c5ca5d 2019-08-24 stsp (entry_name == NULL ||
785 56e0773d 2019-11-28 stsp strcmp(te_name, entry_name) == 0)) {
786 c4cdcb68 2019-04-03 stsp err = cb->diff_old_new(cb_arg, *ie, te,
788 c4cdcb68 2019-04-03 stsp if (err || entry_name)
791 50952927 2019-01-12 stsp *ie = walk_fileindex(fileindex, *ie);
792 56e0773d 2019-11-28 stsp err = walk_tree(&te, fileindex, ie, tree, &tidx,
793 c4cdcb68 2019-04-03 stsp path, entry_name, repo, cb, cb_arg);
794 c4cdcb68 2019-04-03 stsp } else if (cmp < 0) {
795 50952927 2019-01-12 stsp next = walk_fileindex(fileindex, *ie);
796 c4cdcb68 2019-04-03 stsp if (got_path_is_child((*ie)->path, path,
797 c4cdcb68 2019-04-03 stsp path_len) && (entry_name == NULL ||
798 56e0773d 2019-11-28 stsp strcmp(te_name, entry_name) == 0)) {
799 c4cdcb68 2019-04-03 stsp err = cb->diff_old(cb_arg, *ie, path);
800 c4cdcb68 2019-04-03 stsp if (err || entry_name)
803 8da9e5f4 2019-01-12 stsp *ie = next;
805 c4cdcb68 2019-04-03 stsp if ((entry_name == NULL ||
806 56e0773d 2019-11-28 stsp strcmp(te_name, entry_name) == 0)) {
807 c4cdcb68 2019-04-03 stsp err = cb->diff_new(cb_arg, te, path);
808 c4cdcb68 2019-04-03 stsp if (err || entry_name)
811 56e0773d 2019-11-28 stsp err = walk_tree(&te, fileindex, ie, tree, &tidx,
812 c4cdcb68 2019-04-03 stsp path, entry_name, repo, cb, cb_arg);
816 8da9e5f4 2019-01-12 stsp } else if (*ie) {
817 50952927 2019-01-12 stsp next = walk_fileindex(fileindex, *ie);
818 c4cdcb68 2019-04-03 stsp if (got_path_is_child((*ie)->path, path, path_len) &&
819 c4cdcb68 2019-04-03 stsp (entry_name == NULL ||
820 56e0773d 2019-11-28 stsp (te && strcmp(got_tree_entry_get_name(te),
821 56e0773d 2019-11-28 stsp entry_name) == 0))) {
822 c4cdcb68 2019-04-03 stsp err = cb->diff_old(cb_arg, *ie, path);
823 c4cdcb68 2019-04-03 stsp if (err || entry_name)
826 8da9e5f4 2019-01-12 stsp *ie = next;
827 8da9e5f4 2019-01-12 stsp } else if (te) {
828 63c5ca5d 2019-08-24 stsp if (!got_object_tree_entry_is_submodule(te) &&
829 63c5ca5d 2019-08-24 stsp (entry_name == NULL ||
830 56e0773d 2019-11-28 stsp strcmp(got_tree_entry_get_name(te), entry_name)
832 c4cdcb68 2019-04-03 stsp err = cb->diff_new(cb_arg, te, path);
833 c4cdcb68 2019-04-03 stsp if (err || entry_name)
836 56e0773d 2019-11-28 stsp err = walk_tree(&te, fileindex, ie, tree, &tidx, path,
837 c4cdcb68 2019-04-03 stsp entry_name, repo, cb, cb_arg);
843 8da9e5f4 2019-01-12 stsp return err;
846 8da9e5f4 2019-01-12 stsp const struct got_error *
847 8da9e5f4 2019-01-12 stsp got_fileindex_diff_tree(struct got_fileindex *fileindex,
848 c4cdcb68 2019-04-03 stsp struct got_tree_object *tree, const char *path, const char *entry_name,
849 c4cdcb68 2019-04-03 stsp struct got_repository *repo,
850 f44ffd20 2019-02-04 stsp struct got_fileindex_diff_tree_cb *cb, void *cb_arg)
852 30a076bc 2019-07-27 stsp struct got_fileindex_entry *ie;
853 30a076bc 2019-07-27 stsp ie = RB_MIN(got_fileindex_tree, &fileindex->entries);
854 30a076bc 2019-07-27 stsp while (ie && !got_path_is_child(ie->path, path, strlen(path)))
855 30a076bc 2019-07-27 stsp ie = walk_fileindex(fileindex, ie);
856 56e0773d 2019-11-28 stsp return diff_fileindex_tree(fileindex, &ie, tree, path, entry_name, repo,
857 30a076bc 2019-07-27 stsp cb, cb_arg);
860 d1f6d47b 2019-02-04 stsp static const struct got_error *
861 39beb6da 2019-07-27 stsp diff_fileindex_dir(struct got_fileindex *, struct got_fileindex_entry **,
862 6fc93f37 2019-12-13 stsp struct got_pathlist_head *, int, const char *, const char *,
863 c577a9ce 2019-07-27 stsp struct got_repository *, struct got_fileindex_diff_dir_cb *, void *);
865 c577a9ce 2019-07-27 stsp static const struct got_error *
866 965988c5 2019-12-16 stsp read_dirlist(struct got_pathlist_head *dirlist, DIR *dir, const char *path)
868 c577a9ce 2019-07-27 stsp const struct got_error *err = NULL;
869 c577a9ce 2019-07-27 stsp struct got_pathlist_entry *new = NULL;
870 c577a9ce 2019-07-27 stsp struct dirent *dep = NULL;
871 c577a9ce 2019-07-27 stsp struct dirent *de = NULL;
874 c577a9ce 2019-07-27 stsp de = malloc(sizeof(struct dirent) + NAME_MAX + 1);
875 c577a9ce 2019-07-27 stsp if (de == NULL) {
876 c577a9ce 2019-07-27 stsp err = got_error_from_errno("malloc");
880 c577a9ce 2019-07-27 stsp if (readdir_r(dir, de, &dep) != 0) {
881 c577a9ce 2019-07-27 stsp err = got_error_from_errno("readdir_r");
885 c577a9ce 2019-07-27 stsp if (dep == NULL) {
890 c577a9ce 2019-07-27 stsp if (strcmp(de->d_name, ".") == 0 ||
891 c577a9ce 2019-07-27 stsp strcmp(de->d_name, "..") == 0 ||
892 c577a9ce 2019-07-27 stsp (path[0] == '\0' &&
893 c577a9ce 2019-07-27 stsp strcmp(de->d_name, GOT_WORKTREE_GOT_DIR) == 0)) {
898 c577a9ce 2019-07-27 stsp err = got_pathlist_insert(&new, dirlist, de->d_name, de);
903 c577a9ce 2019-07-27 stsp if (new == NULL) {
904 c577a9ce 2019-07-27 stsp err = got_error(GOT_ERR_DIR_DUP_ENTRY);
910 c577a9ce 2019-07-27 stsp return err;
914 c577a9ce 2019-07-27 stsp free_dirlist(struct got_pathlist_head *dirlist)
916 c577a9ce 2019-07-27 stsp struct got_pathlist_entry *dle;
918 c577a9ce 2019-07-27 stsp TAILQ_FOREACH(dle, dirlist, entry)
919 c577a9ce 2019-07-27 stsp free(dle->data);
920 c577a9ce 2019-07-27 stsp got_pathlist_free(dirlist);
923 d1f6d47b 2019-02-04 stsp static const struct got_error *
924 f5d3d7af 2019-02-05 stsp walk_dir(struct got_pathlist_entry **next, struct got_fileindex *fileindex,
925 965988c5 2019-12-16 stsp struct got_fileindex_entry **ie, struct got_pathlist_entry *dle, int fd,
926 39beb6da 2019-07-27 stsp const char *path, const char *rootpath, struct got_repository *repo,
927 39beb6da 2019-07-27 stsp struct got_fileindex_diff_dir_cb *cb, void *cb_arg)
929 d1f6d47b 2019-02-04 stsp const struct got_error *err = NULL;
930 f5d3d7af 2019-02-05 stsp struct dirent *de = dle->data;
931 965988c5 2019-12-16 stsp DIR *subdir = NULL;
932 6fc93f37 2019-12-13 stsp int subdirfd = -1;
934 573463cc 2019-04-06 stsp *next = NULL;
936 f5d3d7af 2019-02-05 stsp if (de->d_type == DT_DIR) {
937 d1f6d47b 2019-02-04 stsp char *subpath;
938 c7f4312f 2019-02-05 stsp char *subdirpath;
939 c577a9ce 2019-07-27 stsp struct got_pathlist_head subdirlist;
941 c577a9ce 2019-07-27 stsp TAILQ_INIT(&subdirlist);
943 d1f6d47b 2019-02-04 stsp if (asprintf(&subpath, "%s%s%s", path,
944 f5d3d7af 2019-02-05 stsp path[0] == '\0' ? "" : "/", de->d_name) == -1)
945 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
947 c7f4312f 2019-02-05 stsp if (asprintf(&subdirpath, "%s/%s", rootpath, subpath) == -1) {
948 c7f4312f 2019-02-05 stsp free(subpath);
949 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
952 965988c5 2019-12-16 stsp subdirfd = openat(fd, de->d_name,
953 6fc93f37 2019-12-13 stsp O_RDONLY | O_NOFOLLOW | O_DIRECTORY);
954 6fc93f37 2019-12-13 stsp if (subdirfd == -1) {
955 40b289d7 2019-09-07 stsp if (errno == EACCES) {
956 40b289d7 2019-09-07 stsp *next = TAILQ_NEXT(dle, entry);
957 40b289d7 2019-09-07 stsp return NULL;
959 965988c5 2019-12-16 stsp err = got_error_from_errno2("openat", subdirpath);
960 d1f6d47b 2019-02-04 stsp free(subpath);
961 c7f4312f 2019-02-05 stsp free(subdirpath);
962 ef5e02fd 2019-08-11 stsp return err;
965 965988c5 2019-12-16 stsp subdir = fdopendir(subdirfd);
966 965988c5 2019-12-16 stsp if (subdir == NULL)
967 965988c5 2019-12-16 stsp return got_error_from_errno2("fdopendir", path);
968 965988c5 2019-12-16 stsp subdirfd = -1;
969 965988c5 2019-12-16 stsp err = read_dirlist(&subdirlist, subdir, subdirpath);
971 c577a9ce 2019-07-27 stsp free(subpath);
972 c577a9ce 2019-07-27 stsp free(subdirpath);
973 965988c5 2019-12-16 stsp closedir(subdir);
974 c577a9ce 2019-07-27 stsp return err;
976 965988c5 2019-12-16 stsp err = diff_fileindex_dir(fileindex, ie, &subdirlist,
977 965988c5 2019-12-16 stsp dirfd(subdir), rootpath, subpath, repo, cb, cb_arg);
978 965988c5 2019-12-16 stsp if (subdir && closedir(subdir) == -1 && err == NULL)
979 965988c5 2019-12-16 stsp err = got_error_from_errno2("closedir", subdirpath);
980 d1f6d47b 2019-02-04 stsp free(subpath);
981 c7f4312f 2019-02-05 stsp free(subdirpath);
982 c577a9ce 2019-07-27 stsp free_dirlist(&subdirlist);
984 d1f6d47b 2019-02-04 stsp return err;
987 f5d3d7af 2019-02-05 stsp *next = TAILQ_NEXT(dle, entry);
988 d1f6d47b 2019-02-04 stsp return NULL;
991 d1f6d47b 2019-02-04 stsp static const struct got_error *
992 d1f6d47b 2019-02-04 stsp diff_fileindex_dir(struct got_fileindex *fileindex,
993 39beb6da 2019-07-27 stsp struct got_fileindex_entry **ie, struct got_pathlist_head *dirlist,
994 6fc93f37 2019-12-13 stsp int dirfd, const char *rootpath, const char *path,
995 6fc93f37 2019-12-13 stsp struct got_repository *repo,
996 39beb6da 2019-07-27 stsp struct got_fileindex_diff_dir_cb *cb, void *cb_arg)
998 d1f6d47b 2019-02-04 stsp const struct got_error *err = NULL;
999 d1f6d47b 2019-02-04 stsp struct dirent *de = NULL;
1000 d1f6d47b 2019-02-04 stsp size_t path_len = strlen(path);
1001 f5d3d7af 2019-02-05 stsp struct got_pathlist_entry *dle;
1003 c577a9ce 2019-07-27 stsp dle = TAILQ_FIRST(dirlist);
1004 500cd40f 2019-02-04 stsp while ((*ie && got_path_is_child((*ie)->path, path, path_len)) || dle) {
1005 500cd40f 2019-02-04 stsp if (dle && *ie) {
1006 18831e78 2019-02-10 stsp char *de_path;
1008 f5d3d7af 2019-02-05 stsp de = dle->data;
1009 18831e78 2019-02-10 stsp if (asprintf(&de_path, "%s/%s", path,
1010 18831e78 2019-02-10 stsp de->d_name) == -1) {
1011 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
1014 d572f586 2019-08-02 stsp cmp = got_path_cmp((*ie)->path, de_path,
1015 4d555405 2019-08-03 stsp got_fileindex_entry_path_len(*ie),
1016 4d555405 2019-08-03 stsp strlen(path) + 1 + de->d_namlen);
1017 18831e78 2019-02-10 stsp free(de_path);
1018 d1f6d47b 2019-02-04 stsp if (cmp == 0) {
1019 7f91a133 2019-12-13 stsp err = cb->diff_old_new(cb_arg, *ie, de, path,
1023 d1f6d47b 2019-02-04 stsp *ie = walk_fileindex(fileindex, *ie);
1024 6fc93f37 2019-12-13 stsp err = walk_dir(&dle, fileindex, ie, dle, dirfd,
1025 6fc93f37 2019-12-13 stsp path, rootpath, repo, cb, cb_arg);
1026 d1f6d47b 2019-02-04 stsp } else if (cmp < 0 ) {
1027 d1f6d47b 2019-02-04 stsp err = cb->diff_old(cb_arg, *ie, path);
1030 c577a9ce 2019-07-27 stsp *ie = walk_fileindex(fileindex, *ie);
1032 7f91a133 2019-12-13 stsp err = cb->diff_new(cb_arg, de, path, dirfd);
1035 6fc93f37 2019-12-13 stsp err = walk_dir(&dle, fileindex, ie, dle, dirfd,
1036 6fc93f37 2019-12-13 stsp path, rootpath, repo, cb, cb_arg);
1040 554b91b1 2019-02-04 stsp } else if (*ie) {
1041 554b91b1 2019-02-04 stsp err = cb->diff_old(cb_arg, *ie, path);
1044 c577a9ce 2019-07-27 stsp *ie = walk_fileindex(fileindex, *ie);
1045 554b91b1 2019-02-04 stsp } else if (dle) {
1046 763e1377 2019-02-05 stsp de = dle->data;
1047 7f91a133 2019-12-13 stsp err = cb->diff_new(cb_arg, de, path, dirfd);
1050 6fc93f37 2019-12-13 stsp err = walk_dir(&dle, fileindex, ie, dle, dirfd, path,
1051 c7f4312f 2019-02-05 stsp rootpath, repo, cb, cb_arg);
1057 d1f6d47b 2019-02-04 stsp return err;
1060 d1f6d47b 2019-02-04 stsp const struct got_error *
1061 965988c5 2019-12-16 stsp got_fileindex_diff_dir(struct got_fileindex *fileindex, int fd,
1062 927df6b7 2019-02-10 stsp const char *rootpath, const char *path, struct got_repository *repo,
1063 c7f4312f 2019-02-05 stsp struct got_fileindex_diff_dir_cb *cb, void *cb_arg)
1065 c577a9ce 2019-07-27 stsp const struct got_error *err;
1066 c577a9ce 2019-07-27 stsp struct got_fileindex_entry *ie;
1067 c577a9ce 2019-07-27 stsp struct got_pathlist_head dirlist;
1071 c577a9ce 2019-07-27 stsp TAILQ_INIT(&dirlist);
1074 965988c5 2019-12-16 stsp * Duplicate the file descriptor so we can call closedir() below
1075 965988c5 2019-12-16 stsp * without closing the file descriptor passed in by our caller.
1077 965988c5 2019-12-16 stsp fd2 = dup(fd);
1078 965988c5 2019-12-16 stsp if (fd2 == -1)
1079 965988c5 2019-12-16 stsp return got_error_from_errno2("dup", path);
1080 3dcf3e74 2020-01-28 stsp if (lseek(fd2, 0, SEEK_SET) == -1) {
1081 3dcf3e74 2020-01-28 stsp err = got_error_from_errno2("lseek", path);
1082 3dcf3e74 2020-01-28 stsp close(fd2);
1083 3dcf3e74 2020-01-28 stsp return err;
1085 965988c5 2019-12-16 stsp dir = fdopendir(fd2);
1086 3dcf3e74 2020-01-28 stsp if (dir == NULL) {
1087 3dcf3e74 2020-01-28 stsp err = got_error_from_errno2("fdopendir", path);
1088 3dcf3e74 2020-01-28 stsp close(fd2);
1089 3dcf3e74 2020-01-28 stsp return err;
1091 965988c5 2019-12-16 stsp err = read_dirlist(&dirlist, dir, path);
1092 965988c5 2019-12-16 stsp if (err) {
1093 965988c5 2019-12-16 stsp closedir(dir);
1094 c577a9ce 2019-07-27 stsp return err;
1097 c577a9ce 2019-07-27 stsp ie = RB_MIN(got_fileindex_tree, &fileindex->entries);
1098 c577a9ce 2019-07-27 stsp while (ie && !got_path_is_child(ie->path, path, strlen(path)))
1099 c577a9ce 2019-07-27 stsp ie = walk_fileindex(fileindex, ie);
1100 965988c5 2019-12-16 stsp err = diff_fileindex_dir(fileindex, &ie, &dirlist, dirfd(dir),
1101 965988c5 2019-12-16 stsp rootpath, path, repo, cb, cb_arg);
1103 965988c5 2019-12-16 stsp if (closedir(dir) == -1 && err == NULL)
1104 965988c5 2019-12-16 stsp err = got_error_from_errno2("closedir", path);
1105 c577a9ce 2019-07-27 stsp free_dirlist(&dirlist);
1106 c577a9ce 2019-07-27 stsp return err;
1109 7a9df742 2019-01-08 stsp RB_GENERATE(got_fileindex_tree, got_fileindex_entry, entry, got_fileindex_cmp);
