1 aeabcaee 2018-03-09 stsp /*
 2 aeabcaee 2018-03-09 stsp  * Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
 3 aeabcaee 2018-03-09 stsp  *
 4 aeabcaee 2018-03-09 stsp  * Permission to use, copy, modify, and distribute this software for any
 5 aeabcaee 2018-03-09 stsp  * purpose with or without fee is hereby granted, provided that the above
 6 aeabcaee 2018-03-09 stsp  * copyright notice and this permission notice appear in all copies.
 7 aeabcaee 2018-03-09 stsp  *
 8 aeabcaee 2018-03-09 stsp  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 9 aeabcaee 2018-03-09 stsp  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 aeabcaee 2018-03-09 stsp  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 aeabcaee 2018-03-09 stsp  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 aeabcaee 2018-03-09 stsp  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 aeabcaee 2018-03-09 stsp  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 aeabcaee 2018-03-09 stsp  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 aeabcaee 2018-03-09 stsp  */
16 aeabcaee 2018-03-09 stsp 
17 aeabcaee 2018-03-09 stsp /*
18 aeabcaee 2018-03-09 stsp  * State information for a tracked file in a work tree.
19 aeabcaee 2018-03-09 stsp  * When written to disk, multi-byte fields are written in big-endian.
20 aeabcaee 2018-03-09 stsp  * Some fields are based on results from stat(2). These are only used in
21 aeabcaee 2018-03-09 stsp  * order to detect modifications made to on-disk files, they are never
22 aeabcaee 2018-03-09 stsp  * applied back to the filesystem.
23 aeabcaee 2018-03-09 stsp  */
24 aeabcaee 2018-03-09 stsp struct got_file_index_entry {
25 aeabcaee 2018-03-09 stsp 	uint64_t ctime_sec;
26 aeabcaee 2018-03-09 stsp 	uint64_t ctime_nsec;
27 aeabcaee 2018-03-09 stsp 	uint64_t mtime_sec;
28 aeabcaee 2018-03-09 stsp 	uint64_t mtime_nsec;
29 aeabcaee 2018-03-09 stsp 	uint32_t uid;
30 aeabcaee 2018-03-09 stsp 	uint32_t gid;
31 aeabcaee 2018-03-09 stsp 	/*
32 aeabcaee 2018-03-09 stsp 	 * On-disk size is truncated to the lower 32 bits.
33 aeabcaee 2018-03-09 stsp 	 * The value is only used to check for modifications anyway.
34 aeabcaee 2018-03-09 stsp 	 */
35 aeabcaee 2018-03-09 stsp 	uint32_t size;
36 aeabcaee 2018-03-09 stsp 	uint16_t mode;
37 aeabcaee 2018-03-09 stsp #define GOT_INDEX_ENTRY_MODE_OBJ_TYPE	0x000f
38 aeabcaee 2018-03-09 stsp #define GOT_INDEX_ENTRY_MODE_PERMS	0xff10
39 aeabcaee 2018-03-09 stsp 
40 aeabcaee 2018-03-09 stsp 	/* SHA1 of corresponding blob in repository. */
41 aeabcaee 2018-03-09 stsp 	uint8_t blob_sha1[SHA1_DIGEST_LENGTH];
42 aeabcaee 2018-03-09 stsp 
43 aeabcaee 2018-03-09 stsp 	uint32_t flags;
44 aeabcaee 2018-03-09 stsp #define GOT_INDEX_ENTRY_F_PATH_LEN	0x00000fff
45 aeabcaee 2018-03-09 stsp #define GOT_INDEX_ENTRY_F_STAGE		0x00003000
46 aeabcaee 2018-03-09 stsp #define GOT_INDEX_ENTRY_F_EXTENDED	0x00004000
47 aeabcaee 2018-03-09 stsp #define GOT_INDEX_ENTRY_F_ASSUME_VALID	0x00008000
48 aeabcaee 2018-03-09 stsp 
49 aeabcaee 2018-03-09 stsp 	/*
50 aeabcaee 2018-03-09 stsp 	 * UNIX-style path, relative to work tree root.
51 aeabcaee 2018-03-09 stsp 	 * Variable length and NUL-padded to a multiple of 8.
52 aeabcaee 2018-03-09 stsp 	 */
53 aeabcaee 2018-03-09 stsp 	const char *path;
54 aeabcaee 2018-03-09 stsp };
55 aeabcaee 2018-03-09 stsp 
56 aeabcaee 2018-03-09 stsp /* "Stages" of a file which is afflicted by a 3-way merge conflict. */
57 aeabcaee 2018-03-09 stsp #define GOT_INDEX_ENTRY_STAGE_MERGED	0
58 aeabcaee 2018-03-09 stsp #define GOT_INDEX_ENTRY_STAGE_ANCESTOR	1
59 aeabcaee 2018-03-09 stsp #define GOT_INDEX_ENTRY_STAGE_OURS	2
60 aeabcaee 2018-03-09 stsp #define GOT_INDEX_ENTRY_STAGE_THEIRS	3
61 aeabcaee 2018-03-09 stsp 
62 aeabcaee 2018-03-09 stsp /* On-disk file index header structure. */
63 aeabcaee 2018-03-09 stsp struct got_file_index_hdr {
64 aeabcaee 2018-03-09 stsp 	uint32_t signature;	/* big-endian on disk */
65 aeabcaee 2018-03-09 stsp 	uint32_t version;	/* big-endian on disk */
66 aeabcaee 2018-03-09 stsp 	uint32_t nentries;	/* big-endian on disk */
67 aeabcaee 2018-03-09 stsp 	struct got_index_entry *entries; /* big-endian on disk */
68 aeabcaee 2018-03-09 stsp 	uint8_t sha1[SHA1_DIGEST_LENGTH]; /* checksum of above data */
69 aeabcaee 2018-03-09 stsp };