1#ifndef REPOSITORY_H
2#define REPOSITORY_H
3
4#include "path.h"
5
6struct config_set;
7struct git_hash_algo;
8struct index_state;
9struct raw_object_store;
10struct submodule_cache;
11
12struct repository {
13 /* Environment */
14 /*
15 * Path to the git directory.
16 * Cannot be NULL after initialization.
17 */
18 char *gitdir;
19
20 /*
21 * Path to the common git directory.
22 * Cannot be NULL after initialization.
23 */
24 char *commondir;
25
26 /*
27 * Holds any information related to accessing the raw object content.
28 */
29 struct raw_object_store *objects;
30
31 /*
32 * All objects in this repository that have been parsed. This structure
33 * owns all objects it references, so users of "struct object *"
34 * generally do not need to free them; instead, when a repository is no
35 * longer used, call parsed_object_pool_clear() on this structure, which
36 * is called by the repositories repo_clear on its desconstruction.
37 */
38 struct parsed_object_pool *parsed_objects;
39
40 /* The store in which the refs are held. */
41 struct ref_store *refs;
42
43 /*
44 * Contains path to often used file names.
45 */
46 struct path_cache cached_paths;
47
48 /*
49 * Path to the repository's graft file.
50 * Cannot be NULL after initialization.
51 */
52 char *graft_file;
53
54 /*
55 * Path to the current worktree's index file.
56 * Cannot be NULL after initialization.
57 */
58 char *index_file;
59
60 /*
61 * Path to the working directory.
62 * A NULL value indicates that there is no working directory.
63 */
64 char *worktree;
65
66 /*
67 * Path from the root of the top-level superproject down to this
68 * repository. This is only non-NULL if the repository is initialized
69 * as a submodule of another repository.
70 */
71 char *submodule_prefix;
72
73 /* Subsystems */
74 /*
75 * Repository's config which contains key-value pairs from the usual
76 * set of config files (i.e. repo specific .git/config, user wide
77 * ~/.gitconfig, XDG config file and the global /etc/gitconfig)
78 */
79 struct config_set *config;
80
81 /* Repository's submodule config as defined by '.gitmodules' */
82 struct submodule_cache *submodule_cache;
83
84 /*
85 * Repository's in-memory index.
86 * 'repo_read_index()' can be used to populate 'index'.
87 */
88 struct index_state *index;
89
90 /* Repository's current hash algorithm, as serialized on disk. */
91 const struct git_hash_algo *hash_algo;
92
93 /* Configurations */
94
95 /* Indicate if a repository has a different 'commondir' from 'gitdir' */
96 unsigned different_commondir:1;
97};
98
99extern struct repository *the_repository;
100
101/*
102 * Define a custom repository layout. Any field can be NULL, which
103 * will default back to the path according to the default layout.
104 */
105struct set_gitdir_args {
106 const char *commondir;
107 const char *object_dir;
108 const char *graft_file;
109 const char *index_file;
110 const char *alternate_db;
111};
112
113void repo_set_gitdir(struct repository *repo, const char *root,
114 const struct set_gitdir_args *extra_args);
115void repo_set_worktree(struct repository *repo, const char *path);
116void repo_set_hash_algo(struct repository *repo, int algo);
117void initialize_the_repository(void);
118int repo_init(struct repository *r, const char *gitdir, const char *worktree);
119int repo_submodule_init(struct repository *submodule,
120 struct repository *superproject,
121 const char *path);
122void repo_clear(struct repository *repo);
123
124/*
125 * Populates the repository's index from its index_file, an index struct will
126 * be allocated if needed.
127 *
128 * Return the number of index entries in the populated index or a value less
129 * than zero if an error occured. If the repository's index has already been
130 * populated then the number of entries will simply be returned.
131 */
132int repo_read_index(struct repository *repo);
133
134#endif /* REPOSITORY_H */
135