2 * Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
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.
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.
17 #define GOT_GIT_DIR ".git"
19 /* Mandatory files and directories inside the git directory. */
20 #define GOT_OBJECTS_DIR "objects"
21 #define GOT_REFS_DIR "refs"
22 #define GOT_HEAD_FILE "HEAD"
23 #define GOT_GITCONFIG "config"
25 /* Other files and directories inside the git directory. */
26 #define GOT_FETCH_HEAD_FILE "FETCH_HEAD"
27 #define GOT_ORIG_HEAD_FILE "ORIG_HEAD"
28 #define GOT_OBJECTS_PACK_DIR "objects/pack"
29 #define GOT_PACKED_REFS_FILE "packed-refs"
31 #define GOT_PACK_CACHE_SIZE 64
33 struct got_packidx_bloom_filter
{
34 RB_ENTRY(got_packidx_bloom_filter
) entry
;
35 char path
[PATH_MAX
]; /* on-disk path */
40 RB_HEAD(got_packidx_bloom_filter_tree
, got_packidx_bloom_filter
);
43 got_packidx_bloom_filter_cmp(const struct got_packidx_bloom_filter
*f1
,
44 const struct got_packidx_bloom_filter
*f2
)
46 return got_path_cmp(f1
->path
, f2
->path
, f1
->path_len
, f2
->path_len
);
49 struct got_repository
{
54 /* The pack index cache speeds up search for packed objects. */
55 struct got_packidx
*packidx_cache
[GOT_PACK_CACHE_SIZE
];
58 * List of bloom filters for pack index files.
59 * Used to avoid opening a pack index in search of an
60 * object ID which is not contained in this pack index.
62 struct got_packidx_bloom_filter_tree packidx_bloom_filters
;
64 /* Open file handles for pack files. */
65 struct got_pack packs
[GOT_PACK_CACHE_SIZE
];
68 * The cache size limit may be lower than GOT_PACK_CACHE_SIZE,
69 * depending on resource limits.
73 /* Handles to child processes for reading loose objects. */
74 struct got_privsep_child privsep_children
[5];
75 #define GOT_REPO_PRIVSEP_CHILD_OBJECT 0
76 #define GOT_REPO_PRIVSEP_CHILD_COMMIT 1
77 #define GOT_REPO_PRIVSEP_CHILD_TREE 2
78 #define GOT_REPO_PRIVSEP_CHILD_BLOB 3
79 #define GOT_REPO_PRIVSEP_CHILD_TAG 4
81 /* Caches for open objects. */
82 struct got_object_cache objcache
;
83 struct got_object_cache treecache
;
84 struct got_object_cache commitcache
;
85 struct got_object_cache tagcache
;
86 struct got_object_cache rawcache
;
88 /* Settings read from Git configuration files. */
89 int gitconfig_repository_format_version
;
90 char *gitconfig_author_name
;
91 char *gitconfig_author_email
;
92 char *global_gitconfig_author_name
;
93 char *global_gitconfig_author_email
;
94 int ngitconfig_remotes
;
95 struct got_remote_repo
*gitconfig_remotes
;
96 char *gitconfig_owner
;
100 /* Settings read from got.conf. */
101 struct got_gotconfig
*gotconfig
;
104 const struct got_error
*got_repo_cache_object(struct got_repository
*,
105 struct got_object_id
*, struct got_object
*);
106 struct got_object
*got_repo_get_cached_object(struct got_repository
*,
107 struct got_object_id
*);
108 const struct got_error
*got_repo_cache_tree(struct got_repository
*,
109 struct got_object_id
*, struct got_tree_object
*);
110 struct got_tree_object
*got_repo_get_cached_tree(struct got_repository
*,
111 struct got_object_id
*);
112 const struct got_error
*got_repo_cache_commit(struct got_repository
*,
113 struct got_object_id
*, struct got_commit_object
*);
114 struct got_commit_object
*got_repo_get_cached_commit(struct got_repository
*,
115 struct got_object_id
*);
116 const struct got_error
*got_repo_cache_tag(struct got_repository
*,
117 struct got_object_id
*, struct got_tag_object
*);
118 struct got_tag_object
*got_repo_get_cached_tag(struct got_repository
*,
119 struct got_object_id
*);
120 const struct got_error
*got_repo_cache_raw_object(struct got_repository
*,
121 struct got_object_id
*, struct got_raw_object
*);
122 struct got_raw_object
*got_repo_get_cached_raw_object(struct got_repository
*,
123 struct got_object_id
*);
124 int got_repo_is_packidx_filename(const char *, size_t);
125 const struct got_error
*got_repo_search_packidx(struct got_packidx
**, int *,
126 struct got_repository
*, struct got_object_id
*);
127 const struct got_error
*got_repo_cache_pack(struct got_pack
**,
128 struct got_repository
*, const char *, struct got_packidx
*);