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 51514078 2018-12-25 stsp const char *ondisk_path, const char *relpath, uint8_t *blob_sha1,
129 51514078 2018-12-25 stsp uint8_t *commit_sha1)
131 51514078 2018-12-25 stsp size_t len;
133 3f762da0 2019-08-03 stsp *ie = calloc(1, sizeof(**ie));
134 3f762da0 2019-08-03 stsp if (*ie == NULL)
135 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
137 3f762da0 2019-08-03 stsp (*ie)->path = strdup(relpath);
138 3f762da0 2019-08-03 stsp if ((*ie)->path == NULL) {
139 638f9024 2019-05-13 stsp const struct got_error *err = got_error_from_errno("strdup");
141 3f762da0 2019-08-03 stsp *ie = NULL;
142 0a585a0d 2018-03-17 stsp return err;
145 4d555405 2019-08-03 stsp len = strlen(relpath);
146 a7f9d64d 2019-01-13 stsp if (len > GOT_FILEIDX_F_PATH_LEN)
147 a7f9d64d 2019-01-13 stsp len = GOT_FILEIDX_F_PATH_LEN;
148 3f762da0 2019-08-03 stsp (*ie)->flags |= len;
150 3f762da0 2019-08-03 stsp return got_fileindex_entry_update(*ie, ondisk_path, blob_sha1,
151 02c07007 2019-02-10 stsp commit_sha1, 1);
155 3f762da0 2019-08-03 stsp got_fileindex_entry_free(struct got_fileindex_entry *ie)
157 3f762da0 2019-08-03 stsp free(ie->path);
162 4d555405 2019-08-03 stsp got_fileindex_entry_path_len(const struct got_fileindex_entry *ie)
164 4d555405 2019-08-03 stsp return (size_t)(ie->flags & GOT_FILEIDX_F_PATH_LEN);
168 0cb83759 2019-08-03 stsp got_fileindex_entry_stage_get(const struct got_fileindex_entry *ie)
170 df335242 2019-08-03 stsp return ((ie->flags & GOT_FILEIDX_F_STAGE) >> GOT_FILEIDX_F_STAGE_SHIFT);
174 0cb83759 2019-08-03 stsp got_fileindex_entry_stage_set(struct got_fileindex_entry *ie, uint32_t stage)
176 0cb83759 2019-08-03 stsp ie->flags &= ~GOT_FILEIDX_F_STAGE;
177 0cb83759 2019-08-03 stsp ie->flags |= ((stage << GOT_FILEIDX_F_STAGE_SHIFT) &
178 0cb83759 2019-08-03 stsp GOT_FILEIDX_F_STAGE);
182 d00136be 2019-03-26 stsp got_fileindex_entry_has_blob(struct got_fileindex_entry *ie)
184 d00136be 2019-03-26 stsp return (ie->flags & GOT_FILEIDX_F_NO_BLOB) == 0;
188 d00136be 2019-03-26 stsp got_fileindex_entry_has_commit(struct got_fileindex_entry *ie)
190 d00136be 2019-03-26 stsp return (ie->flags & GOT_FILEIDX_F_NO_COMMIT) == 0;
194 2ec1f75b 2019-03-26 stsp got_fileindex_entry_has_file_on_disk(struct got_fileindex_entry *ie)
196 2ec1f75b 2019-03-26 stsp return (ie->flags & GOT_FILEIDX_F_NO_FILE_ON_DISK) == 0;
199 50952927 2019-01-12 stsp static const struct got_error *
200 3f762da0 2019-08-03 stsp add_entry(struct got_fileindex *fileindex, struct got_fileindex_entry *ie)
202 133d2798 2019-01-08 stsp if (fileindex->nentries >= GOT_FILEIDX_MAX_ENTRIES)
203 133d2798 2019-01-08 stsp return got_error(GOT_ERR_NO_SPACE);
205 3f762da0 2019-08-03 stsp RB_INSERT(got_fileindex_tree, &fileindex->entries, ie);
206 133d2798 2019-01-08 stsp fileindex->nentries++;
207 133d2798 2019-01-08 stsp return NULL;
210 50952927 2019-01-12 stsp const struct got_error *
211 50952927 2019-01-12 stsp got_fileindex_entry_add(struct got_fileindex *fileindex,
212 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie)
214 50952927 2019-01-12 stsp /* Flag this entry until it gets written out to disk. */
215 3f762da0 2019-08-03 stsp ie->flags |= GOT_FILEIDX_F_NOT_FLUSHED;
217 3f762da0 2019-08-03 stsp return add_entry(fileindex, ie);
221 512f0d0e 2019-01-02 stsp got_fileindex_entry_remove(struct got_fileindex *fileindex,
222 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie)
225 a46b9f33 2020-01-28 stsp * Removing an entry from the RB tree immediately breaks
226 a46b9f33 2020-01-28 stsp * in-progress iterations over file index entries.
227 a46b9f33 2020-01-28 stsp * So flag this entry for removal and skip it once the index
228 a46b9f33 2020-01-28 stsp * is written out to disk, and pretend this entry no longer
229 a46b9f33 2020-01-28 stsp * exists if we get queried for it again before then.
231 a46b9f33 2020-01-28 stsp ie->flags |= GOT_FILEIDX_F_REMOVE_ON_FLUSH;
232 133d2798 2019-01-08 stsp fileindex->nentries--;
235 51514078 2018-12-25 stsp struct got_fileindex_entry *
236 d6c87207 2019-08-02 stsp got_fileindex_entry_get(struct got_fileindex *fileindex, const char *path,
237 d6c87207 2019-08-02 stsp size_t path_len)
239 a46b9f33 2020-01-28 stsp struct got_fileindex_entry *ie;
240 133d2798 2019-01-08 stsp struct got_fileindex_entry key;
241 133d2798 2019-01-08 stsp memset(&key, 0, sizeof(key));
242 133d2798 2019-01-08 stsp key.path = (char *)path;
243 4d555405 2019-08-03 stsp key.flags = (path_len & GOT_FILEIDX_F_PATH_LEN);
244 a46b9f33 2020-01-28 stsp ie = RB_FIND(got_fileindex_tree, &fileindex->entries, &key);
245 a46b9f33 2020-01-28 stsp if (ie && (ie->flags & GOT_FILEIDX_F_REMOVE_ON_FLUSH))
246 a46b9f33 2020-01-28 stsp return NULL;
250 512f0d0e 2019-01-02 stsp const struct got_error *
251 e1ed7f77 2019-01-06 stsp got_fileindex_for_each_entry_safe(struct got_fileindex *fileindex,
252 b504a804 2019-01-08 stsp got_fileindex_cb cb, void *cb_arg)
254 133d2798 2019-01-08 stsp const struct got_error *err;
255 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie, *tmp;
257 3f762da0 2019-08-03 stsp RB_FOREACH_SAFE(ie, got_fileindex_tree, &fileindex->entries, tmp) {
258 a46b9f33 2020-01-28 stsp if (ie->flags & GOT_FILEIDX_F_REMOVE_ON_FLUSH)
260 3f762da0 2019-08-03 stsp err = (*cb)(cb_arg, ie);
262 133d2798 2019-01-08 stsp return err;
264 b504a804 2019-01-08 stsp return NULL;
267 133d2798 2019-01-08 stsp struct got_fileindex *
268 133d2798 2019-01-08 stsp got_fileindex_alloc(void)
270 133d2798 2019-01-08 stsp struct got_fileindex *fileindex;
272 133d2798 2019-01-08 stsp fileindex = calloc(1, sizeof(*fileindex));
273 133d2798 2019-01-08 stsp if (fileindex == NULL)
274 133d2798 2019-01-08 stsp return NULL;
276 133d2798 2019-01-08 stsp RB_INIT(&fileindex->entries);
277 133d2798 2019-01-08 stsp return fileindex;
281 7426bbfd 2018-12-24 stsp got_fileindex_free(struct got_fileindex *fileindex)
283 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie;
285 3f762da0 2019-08-03 stsp while ((ie = RB_MIN(got_fileindex_tree, &fileindex->entries))) {
286 3f762da0 2019-08-03 stsp RB_REMOVE(got_fileindex_tree, &fileindex->entries, ie);
287 3f762da0 2019-08-03 stsp got_fileindex_entry_free(ie);
289 9d31a1d8 2018-03-11 stsp free(fileindex);
292 c34b20a2 2018-03-12 stsp static const struct got_error *
293 c34b20a2 2018-03-12 stsp write_fileindex_val64(SHA1_CTX *ctx, uint64_t val, FILE *outfile)
297 c34b20a2 2018-03-12 stsp val = htobe64(val);
298 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)&val, sizeof(val));
299 3fe2daf1 2018-12-24 stsp n = fwrite(&val, 1, sizeof(val), outfile);
300 c34b20a2 2018-03-12 stsp if (n != sizeof(val))
301 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
302 c34b20a2 2018-03-12 stsp return NULL;
305 c34b20a2 2018-03-12 stsp static const struct got_error *
306 c34b20a2 2018-03-12 stsp write_fileindex_val32(SHA1_CTX *ctx, uint32_t val, FILE *outfile)
310 c34b20a2 2018-03-12 stsp val = htobe32(val);
311 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)&val, sizeof(val));
312 3fe2daf1 2018-12-24 stsp n = fwrite(&val, 1, sizeof(val), outfile);
313 c34b20a2 2018-03-12 stsp if (n != sizeof(val))
314 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
315 c34b20a2 2018-03-12 stsp return NULL;
318 c34b20a2 2018-03-12 stsp static const struct got_error *
319 c34b20a2 2018-03-12 stsp write_fileindex_val16(SHA1_CTX *ctx, uint16_t val, FILE *outfile)
323 c34b20a2 2018-03-12 stsp val = htobe16(val);
324 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)&val, sizeof(val));
325 3fe2daf1 2018-12-24 stsp n = fwrite(&val, 1, sizeof(val), outfile);
326 c34b20a2 2018-03-12 stsp if (n != sizeof(val))
327 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
328 c34b20a2 2018-03-12 stsp return NULL;
331 c34b20a2 2018-03-12 stsp static const struct got_error *
332 c34b20a2 2018-03-12 stsp write_fileindex_path(SHA1_CTX *ctx, const char *path, FILE *outfile)
334 3c5b70f2 2018-12-27 stsp size_t n, len, pad = 0;
335 c34b20a2 2018-03-12 stsp static const uint8_t zero[8] = { 0 };
337 c34b20a2 2018-03-12 stsp len = strlen(path);
338 3c5b70f2 2018-12-27 stsp while ((len + pad) % 8 != 0)
340 3c5b70f2 2018-12-27 stsp if (pad == 0)
341 3c5b70f2 2018-12-27 stsp pad = 8; /* NUL-terminate */
343 c34b20a2 2018-03-12 stsp SHA1Update(ctx, path, len);
344 c34b20a2 2018-03-12 stsp n = fwrite(path, 1, len, outfile);
345 c34b20a2 2018-03-12 stsp if (n != len)
346 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
347 c34b20a2 2018-03-12 stsp SHA1Update(ctx, zero, pad);
348 c34b20a2 2018-03-12 stsp n = fwrite(zero, 1, pad, outfile);
349 c34b20a2 2018-03-12 stsp if (n != pad)
350 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
351 c34b20a2 2018-03-12 stsp return NULL;
354 c34b20a2 2018-03-12 stsp static const struct got_error *
355 3f762da0 2019-08-03 stsp write_fileindex_entry(SHA1_CTX *ctx, struct got_fileindex_entry *ie,
356 c34b20a2 2018-03-12 stsp FILE *outfile)
358 c34b20a2 2018-03-12 stsp const struct got_error *err;
360 df335242 2019-08-03 stsp uint32_t stage;
362 3f762da0 2019-08-03 stsp err = write_fileindex_val64(ctx, ie->ctime_sec, outfile);
364 c34b20a2 2018-03-12 stsp return err;
365 3f762da0 2019-08-03 stsp err = write_fileindex_val64(ctx, ie->ctime_nsec, outfile);
367 c34b20a2 2018-03-12 stsp return err;
368 3f762da0 2019-08-03 stsp err = write_fileindex_val64(ctx, ie->mtime_sec, outfile);
370 c34b20a2 2018-03-12 stsp return err;
371 3f762da0 2019-08-03 stsp err = write_fileindex_val64(ctx, ie->mtime_nsec, outfile);
373 c34b20a2 2018-03-12 stsp return err;
375 3f762da0 2019-08-03 stsp err = write_fileindex_val32(ctx, ie->uid, outfile);
377 c34b20a2 2018-03-12 stsp return err;
378 3f762da0 2019-08-03 stsp err = write_fileindex_val32(ctx, ie->gid, outfile);
380 c34b20a2 2018-03-12 stsp return err;
381 3f762da0 2019-08-03 stsp err = write_fileindex_val32(ctx, ie->size, outfile);
383 c34b20a2 2018-03-12 stsp return err;
385 3f762da0 2019-08-03 stsp err = write_fileindex_val16(ctx, ie->mode, outfile);
387 c34b20a2 2018-03-12 stsp return err;
389 3f762da0 2019-08-03 stsp SHA1Update(ctx, ie->blob_sha1, SHA1_DIGEST_LENGTH);
390 3f762da0 2019-08-03 stsp n = fwrite(ie->blob_sha1, 1, SHA1_DIGEST_LENGTH, outfile);
391 fc76cabb 2018-12-25 stsp if (n != SHA1_DIGEST_LENGTH)
392 fc76cabb 2018-12-25 stsp return got_ferror(outfile, GOT_ERR_IO);
394 3f762da0 2019-08-03 stsp SHA1Update(ctx, ie->commit_sha1, SHA1_DIGEST_LENGTH);
395 3f762da0 2019-08-03 stsp n = fwrite(ie->commit_sha1, 1, SHA1_DIGEST_LENGTH, outfile);
396 c34b20a2 2018-03-12 stsp if (n != SHA1_DIGEST_LENGTH)
397 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
399 3f762da0 2019-08-03 stsp err = write_fileindex_val32(ctx, ie->flags, outfile);
401 c34b20a2 2018-03-12 stsp return err;
403 3f762da0 2019-08-03 stsp err = write_fileindex_path(ctx, ie->path, outfile);
405 df335242 2019-08-03 stsp return err;
407 0cb83759 2019-08-03 stsp stage = got_fileindex_entry_stage_get(ie);
408 df335242 2019-08-03 stsp if (stage == GOT_FILEIDX_STAGE_MODIFY ||
409 df335242 2019-08-03 stsp stage == GOT_FILEIDX_STAGE_ADD) {
410 df335242 2019-08-03 stsp SHA1Update(ctx, ie->staged_blob_sha1, SHA1_DIGEST_LENGTH);
411 df335242 2019-08-03 stsp n = fwrite(ie->staged_blob_sha1, 1, SHA1_DIGEST_LENGTH,
413 df335242 2019-08-03 stsp if (n != SHA1_DIGEST_LENGTH)
414 df335242 2019-08-03 stsp return got_ferror(outfile, GOT_ERR_IO);
417 df335242 2019-08-03 stsp return NULL;
420 9d31a1d8 2018-03-11 stsp const struct got_error *
421 9d31a1d8 2018-03-11 stsp got_fileindex_write(struct got_fileindex *fileindex, FILE *outfile)
423 b504a804 2019-01-08 stsp const struct got_error *err = NULL;
424 c34b20a2 2018-03-12 stsp struct got_fileindex_hdr hdr;
425 c34b20a2 2018-03-12 stsp SHA1_CTX ctx;
426 c34b20a2 2018-03-12 stsp uint8_t sha1[SHA1_DIGEST_LENGTH];
428 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie;
430 c34b20a2 2018-03-12 stsp SHA1Init(&ctx);
432 c34b20a2 2018-03-12 stsp hdr.signature = htobe32(GOT_FILE_INDEX_SIGNATURE);
433 c34b20a2 2018-03-12 stsp hdr.version = htobe32(GOT_FILE_INDEX_VERSION);
434 133d2798 2019-01-08 stsp hdr.nentries = htobe32(fileindex->nentries);
436 a5744d71 2019-01-12 stsp SHA1Update(&ctx, (uint8_t *)&hdr.signature, sizeof(hdr.signature));
437 a5744d71 2019-01-12 stsp SHA1Update(&ctx, (uint8_t *)&hdr.version, sizeof(hdr.version));
438 a5744d71 2019-01-12 stsp SHA1Update(&ctx, (uint8_t *)&hdr.nentries, sizeof(hdr.nentries));
439 a5744d71 2019-01-12 stsp n = fwrite(&hdr.signature, 1, sizeof(hdr.signature), outfile);
440 a5744d71 2019-01-12 stsp if (n != sizeof(hdr.signature))
441 a5744d71 2019-01-12 stsp return got_ferror(outfile, GOT_ERR_IO);
442 a5744d71 2019-01-12 stsp n = fwrite(&hdr.version, 1, sizeof(hdr.version), outfile);
443 a5744d71 2019-01-12 stsp if (n != sizeof(hdr.version))
444 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
445 a5744d71 2019-01-12 stsp n = fwrite(&hdr.nentries, 1, sizeof(hdr.nentries), outfile);
446 a5744d71 2019-01-12 stsp if (n != sizeof(hdr.nentries))
447 a5744d71 2019-01-12 stsp return got_ferror(outfile, GOT_ERR_IO);
449 3f762da0 2019-08-03 stsp RB_FOREACH(ie, got_fileindex_tree, &fileindex->entries) {
450 3f762da0 2019-08-03 stsp ie->flags &= ~GOT_FILEIDX_F_NOT_FLUSHED;
451 a46b9f33 2020-01-28 stsp if (ie->flags & GOT_FILEIDX_F_REMOVE_ON_FLUSH)
453 3f762da0 2019-08-03 stsp err = write_fileindex_entry(&ctx, ie, outfile);
455 133d2798 2019-01-08 stsp return err;
458 c34b20a2 2018-03-12 stsp SHA1Final(sha1, &ctx);
459 c34b20a2 2018-03-12 stsp n = fwrite(sha1, 1, sizeof(sha1), outfile);
460 c34b20a2 2018-03-12 stsp if (n != sizeof(sha1))
461 c34b20a2 2018-03-12 stsp return got_ferror(outfile, GOT_ERR_IO);
463 27d0e5bd 2019-01-12 stsp if (fflush(outfile) != 0)
464 638f9024 2019-05-13 stsp return got_error_from_errno("fflush");
466 52a74475 2018-12-24 stsp return NULL;
469 52a74475 2018-12-24 stsp static const struct got_error *
470 52a74475 2018-12-24 stsp read_fileindex_val64(uint64_t *val, SHA1_CTX *ctx, FILE *infile)
474 3fe2daf1 2018-12-24 stsp n = fread(val, 1, sizeof(*val), infile);
475 3fe2daf1 2018-12-24 stsp if (n != sizeof(*val))
476 27793341 2019-01-12 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
477 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)val, sizeof(*val));
478 9eb6a6b2 2018-12-24 stsp *val = be64toh(*val);
479 52a74475 2018-12-24 stsp return NULL;
482 52a74475 2018-12-24 stsp static const struct got_error *
483 52a74475 2018-12-24 stsp read_fileindex_val32(uint32_t *val, SHA1_CTX *ctx, FILE *infile)
487 3fe2daf1 2018-12-24 stsp n = fread(val, 1, sizeof(*val), infile);
488 3fe2daf1 2018-12-24 stsp if (n != sizeof(*val))
489 27793341 2019-01-12 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
490 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)val, sizeof(*val));
491 9eb6a6b2 2018-12-24 stsp *val = be32toh(*val);
492 52a74475 2018-12-24 stsp return NULL;
495 52a74475 2018-12-24 stsp static const struct got_error *
496 52a74475 2018-12-24 stsp read_fileindex_val16(uint16_t *val, SHA1_CTX *ctx, FILE *infile)
500 3fe2daf1 2018-12-24 stsp n = fread(val, 1, sizeof(*val), infile);
501 3fe2daf1 2018-12-24 stsp if (n != sizeof(*val))
502 27793341 2019-01-12 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
503 3fe2daf1 2018-12-24 stsp SHA1Update(ctx, (uint8_t *)val, sizeof(*val));
504 9eb6a6b2 2018-12-24 stsp *val = be16toh(*val);
505 52a74475 2018-12-24 stsp return NULL;
508 52a74475 2018-12-24 stsp static const struct got_error *
509 52a74475 2018-12-24 stsp read_fileindex_path(char **path, SHA1_CTX *ctx, FILE *infile)
511 52a74475 2018-12-24 stsp const struct got_error *err = NULL;
512 6bf2c316 2019-08-02 stsp const size_t chunk_size = 8;
513 6bf2c316 2019-08-02 stsp size_t n, len = 0, totlen = chunk_size;
515 52a74475 2018-12-24 stsp *path = malloc(totlen);
516 52a74475 2018-12-24 stsp if (*path == NULL)
517 638f9024 2019-05-13 stsp return got_error_from_errno("malloc");
520 6bf2c316 2019-08-02 stsp if (len + chunk_size > totlen) {
521 6bf2c316 2019-08-02 stsp char *p = reallocarray(*path, totlen + chunk_size, 1);
522 52a74475 2018-12-24 stsp if (p == NULL) {
523 638f9024 2019-05-13 stsp err = got_error_from_errno("reallocarray");
526 6bf2c316 2019-08-02 stsp totlen += chunk_size;
529 6bf2c316 2019-08-02 stsp n = fread(*path + len, 1, chunk_size, infile);
530 6bf2c316 2019-08-02 stsp if (n != chunk_size) {
531 6bf2c316 2019-08-02 stsp err = got_ferror(infile, GOT_ERR_FILEIDX_BAD);
534 6bf2c316 2019-08-02 stsp SHA1Update(ctx, *path + len, chunk_size);
535 6bf2c316 2019-08-02 stsp len += chunk_size;
536 6bf2c316 2019-08-02 stsp } while (memchr(*path + len - chunk_size, '\0', chunk_size) == NULL);
539 52a74475 2018-12-24 stsp free(*path);
540 52a74475 2018-12-24 stsp *path = NULL;
542 52a74475 2018-12-24 stsp return err;
545 52a74475 2018-12-24 stsp static const struct got_error *
546 3f762da0 2019-08-03 stsp read_fileindex_entry(struct got_fileindex_entry **iep, SHA1_CTX *ctx,
547 df335242 2019-08-03 stsp FILE *infile, uint32_t version)
549 52a74475 2018-12-24 stsp const struct got_error *err;
550 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie;
553 3f762da0 2019-08-03 stsp *iep = NULL;
555 3f762da0 2019-08-03 stsp ie = calloc(1, sizeof(*ie));
556 3f762da0 2019-08-03 stsp if (ie == NULL)
557 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
559 3f762da0 2019-08-03 stsp err = read_fileindex_val64(&ie->ctime_sec, ctx, infile);
562 3f762da0 2019-08-03 stsp err = read_fileindex_val64(&ie->ctime_nsec, ctx, infile);
565 3f762da0 2019-08-03 stsp err = read_fileindex_val64(&ie->mtime_sec, ctx, infile);
568 3f762da0 2019-08-03 stsp err = read_fileindex_val64(&ie->mtime_nsec, ctx, infile);
572 3f762da0 2019-08-03 stsp err = read_fileindex_val32(&ie->uid, ctx, infile);
575 3f762da0 2019-08-03 stsp err = read_fileindex_val32(&ie->gid, ctx, infile);
578 3f762da0 2019-08-03 stsp err = read_fileindex_val32(&ie->size, ctx, infile);
582 3f762da0 2019-08-03 stsp err = read_fileindex_val16(&ie->mode, ctx, infile);
586 3f762da0 2019-08-03 stsp n = fread(ie->blob_sha1, 1, SHA1_DIGEST_LENGTH, infile);
587 52a74475 2018-12-24 stsp if (n != SHA1_DIGEST_LENGTH) {
588 27793341 2019-01-12 stsp err = got_ferror(infile, GOT_ERR_FILEIDX_BAD);
591 3f762da0 2019-08-03 stsp SHA1Update(ctx, ie->blob_sha1, SHA1_DIGEST_LENGTH);
593 3f762da0 2019-08-03 stsp n = fread(ie->commit_sha1, 1, SHA1_DIGEST_LENGTH, infile);
594 fc76cabb 2018-12-25 stsp if (n != SHA1_DIGEST_LENGTH) {
595 27793341 2019-01-12 stsp err = got_ferror(infile, GOT_ERR_FILEIDX_BAD);
598 3f762da0 2019-08-03 stsp SHA1Update(ctx, ie->commit_sha1, SHA1_DIGEST_LENGTH);
600 3f762da0 2019-08-03 stsp err = read_fileindex_val32(&ie->flags, ctx, infile);
604 3f762da0 2019-08-03 stsp err = read_fileindex_path(&ie->path, ctx, infile);
608 df335242 2019-08-03 stsp if (version >= 2) {
609 0cb83759 2019-08-03 stsp uint32_t stage = got_fileindex_entry_stage_get(ie);
610 df335242 2019-08-03 stsp if (stage == GOT_FILEIDX_STAGE_MODIFY ||
611 df335242 2019-08-03 stsp stage == GOT_FILEIDX_STAGE_ADD) {
612 df335242 2019-08-03 stsp n = fread(ie->staged_blob_sha1, 1, SHA1_DIGEST_LENGTH,
614 df335242 2019-08-03 stsp if (n != SHA1_DIGEST_LENGTH) {
615 df335242 2019-08-03 stsp err = got_ferror(infile, GOT_ERR_FILEIDX_BAD);
618 df335242 2019-08-03 stsp SHA1Update(ctx, ie->staged_blob_sha1, SHA1_DIGEST_LENGTH);
621 df335242 2019-08-03 stsp /* GOT_FILE_INDEX_VERSION 1 does not support staging. */
622 df335242 2019-08-03 stsp ie->flags &= ~GOT_FILEIDX_F_STAGE;
627 3f762da0 2019-08-03 stsp got_fileindex_entry_free(ie);
630 52a74475 2018-12-24 stsp return err;
633 52a74475 2018-12-24 stsp const struct got_error *
634 52a74475 2018-12-24 stsp got_fileindex_read(struct got_fileindex *fileindex, FILE *infile)
636 52a74475 2018-12-24 stsp const struct got_error *err = NULL;
637 52a74475 2018-12-24 stsp struct got_fileindex_hdr hdr;
638 52a74475 2018-12-24 stsp SHA1_CTX ctx;
639 3f762da0 2019-08-03 stsp struct got_fileindex_entry *ie;
640 52a74475 2018-12-24 stsp uint8_t sha1_expected[SHA1_DIGEST_LENGTH];
641 52a74475 2018-12-24 stsp uint8_t sha1[SHA1_DIGEST_LENGTH];
645 52a74475 2018-12-24 stsp SHA1Init(&ctx);
647 b6d05318 2019-01-13 stsp n = fread(&hdr.signature, 1, sizeof(hdr.signature), infile);
648 b6d05318 2019-01-13 stsp if (n != sizeof(hdr.signature)) {
649 b6d05318 2019-01-13 stsp if (n == 0) /* EOF */
650 b6d05318 2019-01-13 stsp return NULL;
651 b6d05318 2019-01-13 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
653 b6d05318 2019-01-13 stsp n = fread(&hdr.version, 1, sizeof(hdr.version), infile);
654 b6d05318 2019-01-13 stsp if (n != sizeof(hdr.version)) {
655 51514078 2018-12-25 stsp if (n == 0) /* EOF */
656 51514078 2018-12-25 stsp return NULL;
657 27793341 2019-01-12 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
659 b6d05318 2019-01-13 stsp n = fread(&hdr.nentries, 1, sizeof(hdr.nentries), infile);
660 b6d05318 2019-01-13 stsp if (n != sizeof(hdr.nentries)) {
661 b6d05318 2019-01-13 stsp if (n == 0) /* EOF */
662 b6d05318 2019-01-13 stsp return NULL;
663 b6d05318 2019-01-13 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
666 b6d05318 2019-01-13 stsp SHA1Update(&ctx, (uint8_t *)&hdr.signature, sizeof(hdr.signature));
667 b6d05318 2019-01-13 stsp SHA1Update(&ctx, (uint8_t *)&hdr.version, sizeof(hdr.version));
668 b6d05318 2019-01-13 stsp SHA1Update(&ctx, (uint8_t *)&hdr.nentries, sizeof(hdr.nentries));
670 9eb6a6b2 2018-12-24 stsp hdr.signature = be32toh(hdr.signature);
671 9eb6a6b2 2018-12-24 stsp hdr.version = be32toh(hdr.version);
672 9eb6a6b2 2018-12-24 stsp hdr.nentries = be32toh(hdr.nentries);
674 52a74475 2018-12-24 stsp if (hdr.signature != GOT_FILE_INDEX_SIGNATURE)
675 52a74475 2018-12-24 stsp return got_error(GOT_ERR_FILEIDX_SIG);
676 df335242 2019-08-03 stsp if (hdr.version > GOT_FILE_INDEX_VERSION)
677 52a74475 2018-12-24 stsp return got_error(GOT_ERR_FILEIDX_VER);
679 52a74475 2018-12-24 stsp for (i = 0; i < hdr.nentries; i++) {
680 df335242 2019-08-03 stsp err = read_fileindex_entry(&ie, &ctx, infile, hdr.version);
682 52a74475 2018-12-24 stsp return err;
683 3f762da0 2019-08-03 stsp err = add_entry(fileindex, ie);
685 52a74475 2018-12-24 stsp return err;
688 52a74475 2018-12-24 stsp n = fread(sha1_expected, 1, sizeof(sha1_expected), infile);
689 52a74475 2018-12-24 stsp if (n != sizeof(sha1_expected))
690 27793341 2019-01-12 stsp return got_ferror(infile, GOT_ERR_FILEIDX_BAD);
691 52a74475 2018-12-24 stsp SHA1Final(sha1, &ctx);
692 52a74475 2018-12-24 stsp if (memcmp(sha1, sha1_expected, SHA1_DIGEST_LENGTH) != 0)
693 52a74475 2018-12-24 stsp return got_error(GOT_ERR_FILEIDX_CSUM);
695 9d31a1d8 2018-03-11 stsp return NULL;
698 c2ac9456 2019-03-15 stsp static struct got_fileindex_entry *
699 50952927 2019-01-12 stsp walk_fileindex(struct got_fileindex *fileindex, struct got_fileindex_entry *ie)
701 50952927 2019-01-12 stsp struct got_fileindex_entry *next;
703 50952927 2019-01-12 stsp next = RB_NEXT(got_fileindex_tree, &fileindex->entries, ie);
705 a46b9f33 2020-01-28 stsp /* Skip entries which were added or removed by diff callbacks. */
706 a46b9f33 2020-01-28 stsp while (next && (next->flags & (GOT_FILEIDX_F_NOT_FLUSHED |
707 a46b9f33 2020-01-28 stsp GOT_FILEIDX_F_REMOVE_ON_FLUSH)))
708 50952927 2019-01-12 stsp next = RB_NEXT(got_fileindex_tree, &fileindex->entries, next);
710 50952927 2019-01-12 stsp return next;
713 8da9e5f4 2019-01-12 stsp static const struct got_error *
714 56e0773d 2019-11-28 stsp diff_fileindex_tree(struct got_fileindex *, struct got_fileindex_entry **ie,
715 56e0773d 2019-11-28 stsp struct got_tree_object *tree, const char *, const char *,
716 c4cdcb68 2019-04-03 stsp struct got_repository *, struct got_fileindex_diff_tree_cb *, void *);
718 9d2a8e53 2019-01-28 stsp static const struct got_error *
719 8da9e5f4 2019-01-12 stsp walk_tree(struct got_tree_entry **next, struct got_fileindex *fileindex,
720 56e0773d 2019-11-28 stsp struct got_fileindex_entry **ie, struct got_tree_object *tree, int *tidx,
721 c4cdcb68 2019-04-03 stsp const char *path, const char *entry_name, struct got_repository *repo,
722 f44ffd20 2019-02-04 stsp struct got_fileindex_diff_tree_cb *cb, void *cb_arg)
724 8da9e5f4 2019-01-12 stsp const struct got_error *err = NULL;
725 56e0773d 2019-11-28 stsp struct got_tree_entry *te = got_object_tree_get_entry(tree, *tidx);
727 56e0773d 2019-11-28 stsp if (!got_object_tree_entry_is_submodule(te) &&
728 56e0773d 2019-11-28 stsp S_ISDIR(got_tree_entry_get_mode(te))) {
729 8da9e5f4 2019-01-12 stsp char *subpath;
730 8da9e5f4 2019-01-12 stsp struct got_tree_object *subtree;
732 8da9e5f4 2019-01-12 stsp if (asprintf(&subpath, "%s%s%s", path,
733 56e0773d 2019-11-28 stsp path[0] == '\0' ? "" : "/",
734 56e0773d 2019-11-28 stsp got_tree_entry_get_name(te)) == -1)
735 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
737 56e0773d 2019-11-28 stsp err = got_object_open_as_tree(&subtree, repo,
738 56e0773d 2019-11-28 stsp got_tree_entry_get_id(te));
740 8da9e5f4 2019-01-12 stsp free(subpath);
741 8da9e5f4 2019-01-12 stsp return err;
744 56e0773d 2019-11-28 stsp err = diff_fileindex_tree(fileindex, ie, subtree, subpath,
745 56e0773d 2019-11-28 stsp entry_name, repo, cb, cb_arg);
746 8da9e5f4 2019-01-12 stsp free(subpath);
747 8da9e5f4 2019-01-12 stsp got_object_tree_close(subtree);
749 8da9e5f4 2019-01-12 stsp return err;
753 56e0773d 2019-11-28 stsp *next = got_object_tree_get_entry(tree, *tidx);
754 8da9e5f4 2019-01-12 stsp return NULL;
757 8da9e5f4 2019-01-12 stsp static const struct got_error *
758 8da9e5f4 2019-01-12 stsp diff_fileindex_tree(struct got_fileindex *fileindex,
759 56e0773d 2019-11-28 stsp struct got_fileindex_entry **ie, struct got_tree_object *tree,
760 c4cdcb68 2019-04-03 stsp const char *path, const char *entry_name, struct got_repository *repo,
761 f44ffd20 2019-02-04 stsp struct got_fileindex_diff_tree_cb *cb, void *cb_arg)
763 8da9e5f4 2019-01-12 stsp const struct got_error *err = NULL;
764 8da9e5f4 2019-01-12 stsp struct got_tree_entry *te = NULL;
765 8da9e5f4 2019-01-12 stsp size_t path_len = strlen(path);
766 8da9e5f4 2019-01-12 stsp struct got_fileindex_entry *next;
767 56e0773d 2019-11-28 stsp int tidx = 0;
769 56e0773d 2019-11-28 stsp te = got_object_tree_get_entry(tree, tidx);
770 500cd40f 2019-02-04 stsp while ((*ie && got_path_is_child((*ie)->path, path, path_len)) || te) {
771 8da9e5f4 2019-01-12 stsp if (te && *ie) {
772 18831e78 2019-02-10 stsp char *te_path;
773 56e0773d 2019-11-28 stsp const char *te_name = got_tree_entry_get_name(te);
775 56e0773d 2019-11-28 stsp if (asprintf(&te_path, "%s/%s", path, te_name) == -1) {
776 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
779 d572f586 2019-08-02 stsp cmp = got_path_cmp((*ie)->path, te_path,
780 4d555405 2019-08-03 stsp got_fileindex_entry_path_len(*ie), strlen(te_path));
781 18831e78 2019-02-10 stsp free(te_path);
782 8da9e5f4 2019-01-12 stsp if (cmp == 0) {
783 c4cdcb68 2019-04-03 stsp if (got_path_is_child((*ie)->path, path,
784 63c5ca5d 2019-08-24 stsp path_len) &&
785 63c5ca5d 2019-08-24 stsp !got_object_tree_entry_is_submodule(te) &&
786 63c5ca5d 2019-08-24 stsp (entry_name == NULL ||
787 56e0773d 2019-11-28 stsp strcmp(te_name, entry_name) == 0)) {
788 c4cdcb68 2019-04-03 stsp err = cb->diff_old_new(cb_arg, *ie, te,
790 c4cdcb68 2019-04-03 stsp if (err || entry_name)
793 50952927 2019-01-12 stsp *ie = walk_fileindex(fileindex, *ie);
794 56e0773d 2019-11-28 stsp err = walk_tree(&te, fileindex, ie, tree, &tidx,
795 c4cdcb68 2019-04-03 stsp path, entry_name, repo, cb, cb_arg);
796 c4cdcb68 2019-04-03 stsp } else if (cmp < 0) {
797 50952927 2019-01-12 stsp next = walk_fileindex(fileindex, *ie);
798 c4cdcb68 2019-04-03 stsp if (got_path_is_child((*ie)->path, path,
799 c4cdcb68 2019-04-03 stsp path_len) && (entry_name == NULL ||
800 56e0773d 2019-11-28 stsp strcmp(te_name, entry_name) == 0)) {
801 c4cdcb68 2019-04-03 stsp err = cb->diff_old(cb_arg, *ie, path);
802 c4cdcb68 2019-04-03 stsp if (err || entry_name)
805 8da9e5f4 2019-01-12 stsp *ie = next;
807 c4cdcb68 2019-04-03 stsp if ((entry_name == NULL ||
808 56e0773d 2019-11-28 stsp strcmp(te_name, entry_name) == 0)) {
809 c4cdcb68 2019-04-03 stsp err = cb->diff_new(cb_arg, te, path);
810 c4cdcb68 2019-04-03 stsp if (err || entry_name)
813 56e0773d 2019-11-28 stsp err = walk_tree(&te, fileindex, ie, tree, &tidx,
814 c4cdcb68 2019-04-03 stsp path, entry_name, repo, cb, cb_arg);
818 8da9e5f4 2019-01-12 stsp } else if (*ie) {
819 50952927 2019-01-12 stsp next = walk_fileindex(fileindex, *ie);
820 c4cdcb68 2019-04-03 stsp if (got_path_is_child((*ie)->path, path, path_len) &&
821 c4cdcb68 2019-04-03 stsp (entry_name == NULL ||
822 56e0773d 2019-11-28 stsp (te && strcmp(got_tree_entry_get_name(te),
823 56e0773d 2019-11-28 stsp entry_name) == 0))) {
824 c4cdcb68 2019-04-03 stsp err = cb->diff_old(cb_arg, *ie, path);
825 c4cdcb68 2019-04-03 stsp if (err || entry_name)
828 8da9e5f4 2019-01-12 stsp *ie = next;
829 8da9e5f4 2019-01-12 stsp } else if (te) {
830 63c5ca5d 2019-08-24 stsp if (!got_object_tree_entry_is_submodule(te) &&
831 63c5ca5d 2019-08-24 stsp (entry_name == NULL ||
832 56e0773d 2019-11-28 stsp strcmp(got_tree_entry_get_name(te), entry_name)
834 c4cdcb68 2019-04-03 stsp err = cb->diff_new(cb_arg, te, path);
835 c4cdcb68 2019-04-03 stsp if (err || entry_name)
838 56e0773d 2019-11-28 stsp err = walk_tree(&te, fileindex, ie, tree, &tidx, path,
839 c4cdcb68 2019-04-03 stsp entry_name, repo, cb, cb_arg);
845 8da9e5f4 2019-01-12 stsp return err;
848 8da9e5f4 2019-01-12 stsp const struct got_error *
849 8da9e5f4 2019-01-12 stsp got_fileindex_diff_tree(struct got_fileindex *fileindex,
850 c4cdcb68 2019-04-03 stsp struct got_tree_object *tree, const char *path, const char *entry_name,
851 c4cdcb68 2019-04-03 stsp struct got_repository *repo,
852 f44ffd20 2019-02-04 stsp struct got_fileindex_diff_tree_cb *cb, void *cb_arg)
854 30a076bc 2019-07-27 stsp struct got_fileindex_entry *ie;
855 30a076bc 2019-07-27 stsp ie = RB_MIN(got_fileindex_tree, &fileindex->entries);
856 30a076bc 2019-07-27 stsp while (ie && !got_path_is_child(ie->path, path, strlen(path)))
857 30a076bc 2019-07-27 stsp ie = walk_fileindex(fileindex, ie);
858 56e0773d 2019-11-28 stsp return diff_fileindex_tree(fileindex, &ie, tree, path, entry_name, repo,
859 30a076bc 2019-07-27 stsp cb, cb_arg);
862 d1f6d47b 2019-02-04 stsp static const struct got_error *
863 39beb6da 2019-07-27 stsp diff_fileindex_dir(struct got_fileindex *, struct got_fileindex_entry **,
864 6fc93f37 2019-12-13 stsp struct got_pathlist_head *, int, const char *, const char *,
865 c577a9ce 2019-07-27 stsp struct got_repository *, struct got_fileindex_diff_dir_cb *, void *);
867 c577a9ce 2019-07-27 stsp static const struct got_error *
868 965988c5 2019-12-16 stsp read_dirlist(struct got_pathlist_head *dirlist, DIR *dir, const char *path)
870 c577a9ce 2019-07-27 stsp const struct got_error *err = NULL;
871 c577a9ce 2019-07-27 stsp struct got_pathlist_entry *new = NULL;
872 c577a9ce 2019-07-27 stsp struct dirent *dep = NULL;
873 c577a9ce 2019-07-27 stsp struct dirent *de = NULL;
876 c577a9ce 2019-07-27 stsp de = malloc(sizeof(struct dirent) + NAME_MAX + 1);
877 c577a9ce 2019-07-27 stsp if (de == NULL) {
878 c577a9ce 2019-07-27 stsp err = got_error_from_errno("malloc");
882 c577a9ce 2019-07-27 stsp if (readdir_r(dir, de, &dep) != 0) {
883 c577a9ce 2019-07-27 stsp err = got_error_from_errno("readdir_r");
887 c577a9ce 2019-07-27 stsp if (dep == NULL) {
892 c577a9ce 2019-07-27 stsp if (strcmp(de->d_name, ".") == 0 ||
893 c577a9ce 2019-07-27 stsp strcmp(de->d_name, "..") == 0 ||
894 c577a9ce 2019-07-27 stsp (path[0] == '\0' &&
895 c577a9ce 2019-07-27 stsp strcmp(de->d_name, GOT_WORKTREE_GOT_DIR) == 0)) {
900 c577a9ce 2019-07-27 stsp err = got_pathlist_insert(&new, dirlist, de->d_name, de);
905 c577a9ce 2019-07-27 stsp if (new == NULL) {
906 c577a9ce 2019-07-27 stsp err = got_error(GOT_ERR_DIR_DUP_ENTRY);
912 c577a9ce 2019-07-27 stsp return err;
916 c577a9ce 2019-07-27 stsp free_dirlist(struct got_pathlist_head *dirlist)
918 c577a9ce 2019-07-27 stsp struct got_pathlist_entry *dle;
920 c577a9ce 2019-07-27 stsp TAILQ_FOREACH(dle, dirlist, entry)
921 c577a9ce 2019-07-27 stsp free(dle->data);
922 c577a9ce 2019-07-27 stsp got_pathlist_free(dirlist);
925 d1f6d47b 2019-02-04 stsp static const struct got_error *
926 f5d3d7af 2019-02-05 stsp walk_dir(struct got_pathlist_entry **next, struct got_fileindex *fileindex,
927 965988c5 2019-12-16 stsp struct got_fileindex_entry **ie, struct got_pathlist_entry *dle, int fd,
928 39beb6da 2019-07-27 stsp const char *path, const char *rootpath, struct got_repository *repo,
929 39beb6da 2019-07-27 stsp struct got_fileindex_diff_dir_cb *cb, void *cb_arg)
931 d1f6d47b 2019-02-04 stsp const struct got_error *err = NULL;
932 f5d3d7af 2019-02-05 stsp struct dirent *de = dle->data;
933 965988c5 2019-12-16 stsp DIR *subdir = NULL;
934 6fc93f37 2019-12-13 stsp int subdirfd = -1;
936 573463cc 2019-04-06 stsp *next = NULL;
938 f5d3d7af 2019-02-05 stsp if (de->d_type == DT_DIR) {
939 d1f6d47b 2019-02-04 stsp char *subpath;
940 c7f4312f 2019-02-05 stsp char *subdirpath;
941 c577a9ce 2019-07-27 stsp struct got_pathlist_head subdirlist;
943 c577a9ce 2019-07-27 stsp TAILQ_INIT(&subdirlist);
945 d1f6d47b 2019-02-04 stsp if (asprintf(&subpath, "%s%s%s", path,
946 f5d3d7af 2019-02-05 stsp path[0] == '\0' ? "" : "/", de->d_name) == -1)
947 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
949 c7f4312f 2019-02-05 stsp if (asprintf(&subdirpath, "%s/%s", rootpath, subpath) == -1) {
950 c7f4312f 2019-02-05 stsp free(subpath);
951 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
954 965988c5 2019-12-16 stsp subdirfd = openat(fd, de->d_name,
955 6fc93f37 2019-12-13 stsp O_RDONLY | O_NOFOLLOW | O_DIRECTORY);
956 6fc93f37 2019-12-13 stsp if (subdirfd == -1) {
957 40b289d7 2019-09-07 stsp if (errno == EACCES) {
958 40b289d7 2019-09-07 stsp *next = TAILQ_NEXT(dle, entry);
959 40b289d7 2019-09-07 stsp return NULL;
961 965988c5 2019-12-16 stsp err = got_error_from_errno2("openat", subdirpath);
962 d1f6d47b 2019-02-04 stsp free(subpath);
963 c7f4312f 2019-02-05 stsp free(subdirpath);
964 ef5e02fd 2019-08-11 stsp return err;
967 965988c5 2019-12-16 stsp subdir = fdopendir(subdirfd);
968 965988c5 2019-12-16 stsp if (subdir == NULL)
969 965988c5 2019-12-16 stsp return got_error_from_errno2("fdopendir", path);
970 965988c5 2019-12-16 stsp subdirfd = -1;
971 965988c5 2019-12-16 stsp err = read_dirlist(&subdirlist, subdir, subdirpath);
973 c577a9ce 2019-07-27 stsp free(subpath);
974 c577a9ce 2019-07-27 stsp free(subdirpath);
975 965988c5 2019-12-16 stsp closedir(subdir);
976 c577a9ce 2019-07-27 stsp return err;
978 965988c5 2019-12-16 stsp err = diff_fileindex_dir(fileindex, ie, &subdirlist,
979 965988c5 2019-12-16 stsp dirfd(subdir), rootpath, subpath, repo, cb, cb_arg);
980 965988c5 2019-12-16 stsp if (subdir && closedir(subdir) == -1 && err == NULL)
981 965988c5 2019-12-16 stsp err = got_error_from_errno2("closedir", subdirpath);
982 d1f6d47b 2019-02-04 stsp free(subpath);
983 c7f4312f 2019-02-05 stsp free(subdirpath);
984 c577a9ce 2019-07-27 stsp free_dirlist(&subdirlist);
986 d1f6d47b 2019-02-04 stsp return err;
989 f5d3d7af 2019-02-05 stsp *next = TAILQ_NEXT(dle, entry);
990 d1f6d47b 2019-02-04 stsp return NULL;
993 d1f6d47b 2019-02-04 stsp static const struct got_error *
994 d1f6d47b 2019-02-04 stsp diff_fileindex_dir(struct got_fileindex *fileindex,
995 39beb6da 2019-07-27 stsp struct got_fileindex_entry **ie, struct got_pathlist_head *dirlist,
996 6fc93f37 2019-12-13 stsp int dirfd, const char *rootpath, const char *path,
997 6fc93f37 2019-12-13 stsp struct got_repository *repo,
998 39beb6da 2019-07-27 stsp struct got_fileindex_diff_dir_cb *cb, void *cb_arg)
1000 d1f6d47b 2019-02-04 stsp const struct got_error *err = NULL;
1001 d1f6d47b 2019-02-04 stsp struct dirent *de = NULL;
1002 d1f6d47b 2019-02-04 stsp size_t path_len = strlen(path);
1003 f5d3d7af 2019-02-05 stsp struct got_pathlist_entry *dle;
1005 c577a9ce 2019-07-27 stsp dle = TAILQ_FIRST(dirlist);
1006 500cd40f 2019-02-04 stsp while ((*ie && got_path_is_child((*ie)->path, path, path_len)) || dle) {
1007 500cd40f 2019-02-04 stsp if (dle && *ie) {
1008 18831e78 2019-02-10 stsp char *de_path;
1010 f5d3d7af 2019-02-05 stsp de = dle->data;
1011 18831e78 2019-02-10 stsp if (asprintf(&de_path, "%s/%s", path,
1012 18831e78 2019-02-10 stsp de->d_name) == -1) {
1013 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
1016 d572f586 2019-08-02 stsp cmp = got_path_cmp((*ie)->path, de_path,
1017 4d555405 2019-08-03 stsp got_fileindex_entry_path_len(*ie),
1018 4d555405 2019-08-03 stsp strlen(path) + 1 + de->d_namlen);
1019 18831e78 2019-02-10 stsp free(de_path);
1020 d1f6d47b 2019-02-04 stsp if (cmp == 0) {
1021 7f91a133 2019-12-13 stsp err = cb->diff_old_new(cb_arg, *ie, de, path,
1025 d1f6d47b 2019-02-04 stsp *ie = walk_fileindex(fileindex, *ie);
1026 6fc93f37 2019-12-13 stsp err = walk_dir(&dle, fileindex, ie, dle, dirfd,
1027 6fc93f37 2019-12-13 stsp path, rootpath, repo, cb, cb_arg);
1028 d1f6d47b 2019-02-04 stsp } else if (cmp < 0 ) {
1029 d1f6d47b 2019-02-04 stsp err = cb->diff_old(cb_arg, *ie, path);
1032 c577a9ce 2019-07-27 stsp *ie = walk_fileindex(fileindex, *ie);
1034 7f91a133 2019-12-13 stsp err = cb->diff_new(cb_arg, de, path, dirfd);
1037 6fc93f37 2019-12-13 stsp err = walk_dir(&dle, fileindex, ie, dle, dirfd,
1038 6fc93f37 2019-12-13 stsp path, rootpath, repo, cb, cb_arg);
1042 554b91b1 2019-02-04 stsp } else if (*ie) {
1043 554b91b1 2019-02-04 stsp err = cb->diff_old(cb_arg, *ie, path);
1046 c577a9ce 2019-07-27 stsp *ie = walk_fileindex(fileindex, *ie);
1047 554b91b1 2019-02-04 stsp } else if (dle) {
1048 763e1377 2019-02-05 stsp de = dle->data;
1049 7f91a133 2019-12-13 stsp err = cb->diff_new(cb_arg, de, path, dirfd);
1052 6fc93f37 2019-12-13 stsp err = walk_dir(&dle, fileindex, ie, dle, dirfd, path,
1053 c7f4312f 2019-02-05 stsp rootpath, repo, cb, cb_arg);
1059 d1f6d47b 2019-02-04 stsp return err;
1062 d1f6d47b 2019-02-04 stsp const struct got_error *
1063 965988c5 2019-12-16 stsp got_fileindex_diff_dir(struct got_fileindex *fileindex, int fd,
1064 927df6b7 2019-02-10 stsp const char *rootpath, const char *path, struct got_repository *repo,
1065 c7f4312f 2019-02-05 stsp struct got_fileindex_diff_dir_cb *cb, void *cb_arg)
1067 c577a9ce 2019-07-27 stsp const struct got_error *err;
1068 c577a9ce 2019-07-27 stsp struct got_fileindex_entry *ie;
1069 c577a9ce 2019-07-27 stsp struct got_pathlist_head dirlist;
1073 c577a9ce 2019-07-27 stsp TAILQ_INIT(&dirlist);
1076 965988c5 2019-12-16 stsp * Duplicate the file descriptor so we can call closedir() below
1077 965988c5 2019-12-16 stsp * without closing the file descriptor passed in by our caller.
1079 965988c5 2019-12-16 stsp fd2 = dup(fd);
1080 965988c5 2019-12-16 stsp if (fd2 == -1)
1081 965988c5 2019-12-16 stsp return got_error_from_errno2("dup", path);
1082 3dcf3e74 2020-01-28 stsp if (lseek(fd2, 0, SEEK_SET) == -1) {
1083 3dcf3e74 2020-01-28 stsp err = got_error_from_errno2("lseek", path);
1084 3dcf3e74 2020-01-28 stsp close(fd2);
1085 3dcf3e74 2020-01-28 stsp return err;
1087 965988c5 2019-12-16 stsp dir = fdopendir(fd2);
1088 3dcf3e74 2020-01-28 stsp if (dir == NULL) {
1089 3dcf3e74 2020-01-28 stsp err = got_error_from_errno2("fdopendir", path);
1090 3dcf3e74 2020-01-28 stsp close(fd2);
1091 3dcf3e74 2020-01-28 stsp return err;
1093 965988c5 2019-12-16 stsp err = read_dirlist(&dirlist, dir, path);
1094 965988c5 2019-12-16 stsp if (err) {
1095 965988c5 2019-12-16 stsp closedir(dir);
1096 c577a9ce 2019-07-27 stsp return err;
1099 c577a9ce 2019-07-27 stsp ie = RB_MIN(got_fileindex_tree, &fileindex->entries);
1100 c577a9ce 2019-07-27 stsp while (ie && !got_path_is_child(ie->path, path, strlen(path)))
1101 c577a9ce 2019-07-27 stsp ie = walk_fileindex(fileindex, ie);
1102 965988c5 2019-12-16 stsp err = diff_fileindex_dir(fileindex, &ie, &dirlist, dirfd(dir),
1103 965988c5 2019-12-16 stsp rootpath, path, repo, cb, cb_arg);
1105 965988c5 2019-12-16 stsp if (closedir(dir) == -1 && err == NULL)
1106 965988c5 2019-12-16 stsp err = got_error_from_errno2("closedir", path);
1107 c577a9ce 2019-07-27 stsp free_dirlist(&dirlist);
1108 c577a9ce 2019-07-27 stsp return err;
1111 7a9df742 2019-01-08 stsp RB_GENERATE(got_fileindex_tree, got_fileindex_entry, entry, got_fileindex_cmp);
