1 /*
2  * Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
3  *
4  * Permission to use, copy, modify, and distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 struct got_object_id {
18 	u_int8_t sha1[SHA1_DIGEST_LENGTH];
19 };
20 
21 struct got_object {
22 	int type;
23 	int flags;
24 #define GOT_OBJ_FLAG_PACKED		0x01
25 #define GOT_OBJ_FLAG_DELTIFIED		0x02
26 
27 	size_t hdrlen;
28 	size_t size;
29 	struct got_object_id id;
30 
31 	char *path_packfile;	/* if packed */
32 	int pack_idx;		/* if packed */
33 	off_t pack_offset;	/* if packed */
34 	struct got_delta_chain deltas; /* if deltified */
35 	int refcnt;		/* > 0 if open and/or cached */
36 };
37 
38 struct got_tree_object {
39 	struct got_tree_entries entries;
40 	int refcnt;
41 };
42 
43 struct got_blob_object {
44 	FILE *f;
45 	struct got_zstream_buf zb;
46 	size_t hdrlen;
47 	size_t blocksize;
48 	uint8_t *read_buf;
49 	struct got_object_id id;
50 };
51 
52 /* Small version of got_commit_object. Used by commit graph. */
53 struct got_mini_commit_object {
54 	struct got_object_id *tree_id;
55 	unsigned int nparents;
56 	struct got_object_id_queue parent_ids;
57 	struct tm tm_committer;	/* UTC */
58 	int refcnt;		/* > 0 if open and/or cached */
59 };
60 
61 const struct got_error *
62 got_object_mini_commit_open(struct got_mini_commit_object **,
63     struct got_repository *, struct got_object *);
64 void got_object_mini_commit_close(struct got_mini_commit_object *);
65 const struct got_error *got_object_open_as_mini_commit(
66     struct got_mini_commit_object **, struct got_repository *,
67     struct got_object_id *);