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1 718b3ab0 2018-03-17 stsp /*
2 718b3ab0 2018-03-17 stsp * Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
3 718b3ab0 2018-03-17 stsp *
4 718b3ab0 2018-03-17 stsp * Permission to use, copy, modify, and distribute this software for any
5 718b3ab0 2018-03-17 stsp * purpose with or without fee is hereby granted, provided that the above
6 718b3ab0 2018-03-17 stsp * copyright notice and this permission notice appear in all copies.
7 718b3ab0 2018-03-17 stsp *
8 718b3ab0 2018-03-17 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 718b3ab0 2018-03-17 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 718b3ab0 2018-03-17 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 718b3ab0 2018-03-17 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 718b3ab0 2018-03-17 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 718b3ab0 2018-03-17 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 718b3ab0 2018-03-17 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 718b3ab0 2018-03-17 stsp */
16 718b3ab0 2018-03-17 stsp
17 66cba96f 2020-03-18 stsp #define GOT_GIT_DIR ".git"
18 66cba96f 2020-03-18 stsp
19 66cba96f 2020-03-18 stsp /* Mandatory files and directories inside the git directory. */
20 66cba96f 2020-03-18 stsp #define GOT_OBJECTS_DIR "objects"
21 66cba96f 2020-03-18 stsp #define GOT_REFS_DIR "refs"
22 66cba96f 2020-03-18 stsp #define GOT_HEAD_FILE "HEAD"
23 66cba96f 2020-03-18 stsp #define GOT_GITCONFIG "config"
24 66cba96f 2020-03-18 stsp
25 66cba96f 2020-03-18 stsp /* Other files and directories inside the git directory. */
26 66cba96f 2020-03-18 stsp #define GOT_FETCH_HEAD_FILE "FETCH_HEAD"
27 66cba96f 2020-03-18 stsp #define GOT_ORIG_HEAD_FILE "ORIG_HEAD"
28 66cba96f 2020-03-18 stsp #define GOT_OBJECTS_PACK_DIR "objects/pack"
29 66cba96f 2020-03-18 stsp #define GOT_PACKED_REFS_FILE "packed-refs"
30 66cba96f 2020-03-18 stsp
31 cfcf1cbc 2022-05-31 stsp #define GOT_PACK_CACHE_SIZE 32
32 718b3ab0 2018-03-17 stsp
33 b343c297 2021-10-11 stsp struct got_packidx_bloom_filter {
34 f8b19efd 2021-10-13 stsp RB_ENTRY(got_packidx_bloom_filter) entry;
35 f8b19efd 2021-10-13 stsp char path[PATH_MAX]; /* on-disk path */
36 f8b19efd 2021-10-13 stsp size_t path_len;
37 b343c297 2021-10-11 stsp struct bloom *bloom;
38 b343c297 2021-10-11 stsp };
39 b343c297 2021-10-11 stsp
40 f8b19efd 2021-10-13 stsp RB_HEAD(got_packidx_bloom_filter_tree, got_packidx_bloom_filter);
41 b343c297 2021-10-11 stsp
42 f8b19efd 2021-10-13 stsp static inline int
43 f8b19efd 2021-10-13 stsp got_packidx_bloom_filter_cmp(const struct got_packidx_bloom_filter *f1,
44 f8b19efd 2021-10-13 stsp const struct got_packidx_bloom_filter *f2)
45 f8b19efd 2021-10-13 stsp {
46 f8b19efd 2021-10-13 stsp return got_path_cmp(f1->path, f2->path, f1->path_len, f2->path_len);
47 f8b19efd 2021-10-13 stsp }
48 f8b19efd 2021-10-13 stsp
49 718b3ab0 2018-03-17 stsp struct got_repository {
50 718b3ab0 2018-03-17 stsp char *path;
51 718b3ab0 2018-03-17 stsp char *path_git_dir;
52 6d5a9006 2020-12-16 yzhong int gitdir_fd;
53 718b3ab0 2018-03-17 stsp
54 9b576444 2022-03-14 stsp struct got_pathlist_head packidx_paths;
55 9b576444 2022-03-14 stsp
56 718b3ab0 2018-03-17 stsp /* The pack index cache speeds up search for packed objects. */
57 6c414261 2021-03-30 stsp struct got_packidx *packidx_cache[GOT_PACK_CACHE_SIZE];
58 718b3ab0 2018-03-17 stsp
59 b343c297 2021-10-11 stsp /*
60 b343c297 2021-10-11 stsp * List of bloom filters for pack index files.
61 b343c297 2021-10-11 stsp * Used to avoid opening a pack index in search of an
62 b343c297 2021-10-11 stsp * object ID which is not contained in this pack index.
63 b343c297 2021-10-11 stsp */
64 f8b19efd 2021-10-13 stsp struct got_packidx_bloom_filter_tree packidx_bloom_filters;
65 b343c297 2021-10-11 stsp
66 6c6d3ed3 2018-04-02 stsp /* Open file handles for pack files. */
67 718b3ab0 2018-03-17 stsp struct got_pack packs[GOT_PACK_CACHE_SIZE];
68 7bb0daa1 2018-06-21 stsp
69 6c414261 2021-03-30 stsp /*
70 6c414261 2021-03-30 stsp * The cache size limit may be lower than GOT_PACK_CACHE_SIZE,
71 6c414261 2021-03-30 stsp * depending on resource limits.
72 6c414261 2021-03-30 stsp */
73 6c414261 2021-03-30 stsp int pack_cache_size;
74 6c414261 2021-03-30 stsp
75 ad242220 2018-09-08 stsp /* Handles to child processes for reading loose objects. */
76 abc59930 2021-09-05 naddy struct got_privsep_child privsep_children[5];
77 ad242220 2018-09-08 stsp #define GOT_REPO_PRIVSEP_CHILD_OBJECT 0
78 ad242220 2018-09-08 stsp #define GOT_REPO_PRIVSEP_CHILD_COMMIT 1
79 ad242220 2018-09-08 stsp #define GOT_REPO_PRIVSEP_CHILD_TREE 2
80 ad242220 2018-09-08 stsp #define GOT_REPO_PRIVSEP_CHILD_BLOB 3
81 f4a881ce 2018-11-17 stsp #define GOT_REPO_PRIVSEP_CHILD_TAG 4
82 ad242220 2018-09-08 stsp
83 ad242220 2018-09-08 stsp /* Caches for open objects. */
84 54f20211 2018-06-22 stsp struct got_object_cache objcache;
85 f6be5c30 2018-06-22 stsp struct got_object_cache treecache;
86 1943de01 2018-06-22 stsp struct got_object_cache commitcache;
87 f4a881ce 2018-11-17 stsp struct got_object_cache tagcache;
88 d3c116bf 2021-10-15 stsp struct got_object_cache rawcache;
89 1d126e2d 2019-08-24 stsp
90 1d126e2d 2019-08-24 stsp /* Settings read from Git configuration files. */
91 aba9c984 2019-09-08 stsp int gitconfig_repository_format_version;
92 aba9c984 2019-09-08 stsp char *gitconfig_author_name;
93 aba9c984 2019-09-08 stsp char *gitconfig_author_email;
94 c9956ddf 2019-09-08 stsp char *global_gitconfig_author_name;
95 c9956ddf 2019-09-08 stsp char *global_gitconfig_author_email;
96 cd95becd 2019-11-29 stsp int ngitconfig_remotes;
97 cd95becd 2019-11-29 stsp struct got_remote_repo *gitconfig_remotes;
98 9a1cc63f 2020-02-03 stsp char *gitconfig_owner;
99 20b7abb3 2020-10-22 stsp char **extensions;
100 20b7abb3 2020-10-22 stsp int nextensions;
101 257add31 2020-09-09 stsp
102 257add31 2020-09-09 stsp /* Settings read from got.conf. */
103 50b0790e 2020-09-11 stsp struct got_gotconfig *gotconfig;
104 718b3ab0 2018-03-17 stsp };
105 7bb0daa1 2018-06-21 stsp
106 f6be5c30 2018-06-22 stsp const struct got_error*got_repo_cache_object(struct got_repository *,
107 f6be5c30 2018-06-22 stsp struct got_object_id *, struct got_object *);
108 7bb0daa1 2018-06-21 stsp struct got_object *got_repo_get_cached_object(struct got_repository *,
109 7bb0daa1 2018-06-21 stsp struct got_object_id *);
110 f6be5c30 2018-06-22 stsp const struct got_error*got_repo_cache_tree(struct got_repository *,
111 f6be5c30 2018-06-22 stsp struct got_object_id *, struct got_tree_object *);
112 f6be5c30 2018-06-22 stsp struct got_tree_object *got_repo_get_cached_tree(struct got_repository *,
113 f6be5c30 2018-06-22 stsp struct got_object_id *);
114 1943de01 2018-06-22 stsp const struct got_error*got_repo_cache_commit(struct got_repository *,
115 1943de01 2018-06-22 stsp struct got_object_id *, struct got_commit_object *);
116 1943de01 2018-06-22 stsp struct got_commit_object *got_repo_get_cached_commit(struct got_repository *,
117 1943de01 2018-06-22 stsp struct got_object_id *);
118 f4a881ce 2018-11-17 stsp const struct got_error*got_repo_cache_tag(struct got_repository *,
119 f4a881ce 2018-11-17 stsp struct got_object_id *, struct got_tag_object *);
120 f4a881ce 2018-11-17 stsp struct got_tag_object *got_repo_get_cached_tag(struct got_repository *,
121 f4a881ce 2018-11-17 stsp struct got_object_id *);
122 d3c116bf 2021-10-15 stsp const struct got_error*got_repo_cache_raw_object(struct got_repository *,
123 d3c116bf 2021-10-15 stsp struct got_object_id *, struct got_raw_object *);
124 d3c116bf 2021-10-15 stsp struct got_raw_object *got_repo_get_cached_raw_object(struct got_repository *,
125 d3c116bf 2021-10-15 stsp struct got_object_id *);
126 1124fe40 2021-07-07 stsp int got_repo_is_packidx_filename(const char *, size_t);
127 67fd6849 2022-02-13 stsp int got_repo_check_packidx_bloom_filter(struct got_repository *,
128 67fd6849 2022-02-13 stsp const char *, struct got_object_id *);
129 1510f469 2018-09-09 stsp const struct got_error *got_repo_search_packidx(struct got_packidx **, int *,
130 1510f469 2018-09-09 stsp struct got_repository *, struct got_object_id *);
131 67fd6849 2022-02-13 stsp const struct got_error *got_repo_list_packidx(struct got_pathlist_head *,
132 67fd6849 2022-02-13 stsp struct got_repository *);
133 67fd6849 2022-02-13 stsp const struct got_error *got_repo_get_packidx(struct got_packidx **, const char *,
134 67fd6849 2022-02-13 stsp struct got_repository *);
135 1510f469 2018-09-09 stsp const struct got_error *got_repo_cache_pack(struct got_pack **,
136 1510f469 2018-09-09 stsp struct got_repository *, const char *, struct got_packidx *);