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1 | /* | |
2 | * We put all the git config variables in this same object | |
3 | * file, so that programs can link against the config parser | |
4 | * without having to link against all the rest of git. | |
5 | * | |
6 | * In particular, no need to bring in libz etc unless needed, | |
7 | * even if you might want to know where the git directory etc | |
8 | * are. | |
9 | */ | |
10 | #include "cache.h" | |
11 | ||
12 | char git_default_email[MAX_GITNAME]; | |
13 | char git_default_name[MAX_GITNAME]; | |
14 | int user_ident_explicitly_given; | |
15 | int trust_executable_bit = 1; | |
16 | int trust_ctime = 1; | |
17 | int has_symlinks = 1; | |
18 | int ignore_case; | |
19 | int assume_unchanged; | |
20 | int prefer_symlink_refs; | |
21 | int is_bare_repository_cfg = -1; /* unspecified */ | |
22 | int log_all_ref_updates = -1; /* unspecified */ | |
23 | int warn_ambiguous_refs = 1; | |
24 | int repository_format_version; | |
25 | const char *git_commit_encoding; | |
26 | const char *git_log_output_encoding; | |
27 | int shared_repository = PERM_UMASK; | |
28 | const char *apply_default_whitespace; | |
29 | const char *apply_default_ignorewhitespace; | |
30 | int zlib_compression_level = Z_BEST_SPEED; | |
31 | int core_compression_level; | |
32 | int core_compression_seen; | |
33 | int fsync_object_files; | |
34 | size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE; | |
35 | size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT; | |
36 | size_t delta_base_cache_limit = 16 * 1024 * 1024; | |
37 | const char *pager_program; | |
38 | int pager_use_color = 1; | |
39 | const char *editor_program; | |
40 | const char *excludes_file; | |
41 | int auto_crlf = 0; /* 1: both ways, -1: only when adding git objects */ | |
42 | int read_replace_refs = 1; | |
43 | enum safe_crlf safe_crlf = SAFE_CRLF_WARN; | |
44 | unsigned whitespace_rule_cfg = WS_DEFAULT_RULE; | |
45 | enum branch_track git_branch_track = BRANCH_TRACK_REMOTE; | |
46 | enum rebase_setup_type autorebase = AUTOREBASE_NEVER; | |
47 | enum push_default_type push_default = PUSH_DEFAULT_MATCHING; | |
48 | #ifndef OBJECT_CREATION_MODE | |
49 | #define OBJECT_CREATION_MODE OBJECT_CREATION_USES_HARDLINKS | |
50 | #endif | |
51 | enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE; | |
52 | char *notes_ref_name; | |
53 | int grafts_replace_parents = 1; | |
54 | int core_apply_sparse_checkout; | |
55 | ||
56 | /* Parallel index stat data preload? */ | |
57 | int core_preload_index = 0; | |
58 | ||
59 | /* This is set by setup_git_dir_gently() and/or git_default_config() */ | |
60 | char *git_work_tree_cfg; | |
61 | static char *work_tree; | |
62 | ||
63 | static const char *git_dir; | |
64 | static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file; | |
65 | ||
66 | static void setup_git_env(void) | |
67 | { | |
68 | git_dir = getenv(GIT_DIR_ENVIRONMENT); | |
69 | if (!git_dir) | |
70 | git_dir = read_gitfile_gently(DEFAULT_GIT_DIR_ENVIRONMENT); | |
71 | if (!git_dir) | |
72 | git_dir = DEFAULT_GIT_DIR_ENVIRONMENT; | |
73 | git_object_dir = getenv(DB_ENVIRONMENT); | |
74 | if (!git_object_dir) { | |
75 | git_object_dir = xmalloc(strlen(git_dir) + 9); | |
76 | sprintf(git_object_dir, "%s/objects", git_dir); | |
77 | } | |
78 | git_refs_dir = xmalloc(strlen(git_dir) + 6); | |
79 | sprintf(git_refs_dir, "%s/refs", git_dir); | |
80 | git_index_file = getenv(INDEX_ENVIRONMENT); | |
81 | if (!git_index_file) { | |
82 | git_index_file = xmalloc(strlen(git_dir) + 7); | |
83 | sprintf(git_index_file, "%s/index", git_dir); | |
84 | } | |
85 | git_graft_file = getenv(GRAFT_ENVIRONMENT); | |
86 | if (!git_graft_file) | |
87 | git_graft_file = git_pathdup("info/grafts"); | |
88 | if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT)) | |
89 | read_replace_refs = 0; | |
90 | } | |
91 | ||
92 | int is_bare_repository(void) | |
93 | { | |
94 | /* if core.bare is not 'false', let's see if there is a work tree */ | |
95 | return is_bare_repository_cfg && !get_git_work_tree(); | |
96 | } | |
97 | ||
98 | int have_git_dir(void) | |
99 | { | |
100 | return !!git_dir; | |
101 | } | |
102 | ||
103 | const char *get_git_dir(void) | |
104 | { | |
105 | if (!git_dir) | |
106 | setup_git_env(); | |
107 | return git_dir; | |
108 | } | |
109 | ||
110 | static int git_work_tree_initialized; | |
111 | ||
112 | /* | |
113 | * Note. This works only before you used a work tree. This was added | |
114 | * primarily to support git-clone to work in a new repository it just | |
115 | * created, and is not meant to flip between different work trees. | |
116 | */ | |
117 | void set_git_work_tree(const char *new_work_tree) | |
118 | { | |
119 | if (is_bare_repository_cfg >= 0) | |
120 | die("cannot set work tree after initialization"); | |
121 | git_work_tree_initialized = 1; | |
122 | free(work_tree); | |
123 | work_tree = xstrdup(make_absolute_path(new_work_tree)); | |
124 | is_bare_repository_cfg = 0; | |
125 | } | |
126 | ||
127 | const char *get_git_work_tree(void) | |
128 | { | |
129 | if (!git_work_tree_initialized) { | |
130 | work_tree = getenv(GIT_WORK_TREE_ENVIRONMENT); | |
131 | /* core.bare = true overrides implicit and config work tree */ | |
132 | if (!work_tree && is_bare_repository_cfg < 1) { | |
133 | work_tree = git_work_tree_cfg; | |
134 | /* make_absolute_path also normalizes the path */ | |
135 | if (work_tree && !is_absolute_path(work_tree)) | |
136 | work_tree = xstrdup(make_absolute_path(git_path("%s", work_tree))); | |
137 | } else if (work_tree) | |
138 | work_tree = xstrdup(make_absolute_path(work_tree)); | |
139 | git_work_tree_initialized = 1; | |
140 | if (work_tree) | |
141 | is_bare_repository_cfg = 0; | |
142 | } | |
143 | return work_tree; | |
144 | } | |
145 | ||
146 | char *get_object_directory(void) | |
147 | { | |
148 | if (!git_object_dir) | |
149 | setup_git_env(); | |
150 | return git_object_dir; | |
151 | } | |
152 | ||
153 | char *get_index_file(void) | |
154 | { | |
155 | if (!git_index_file) | |
156 | setup_git_env(); | |
157 | return git_index_file; | |
158 | } | |
159 | ||
160 | char *get_graft_file(void) | |
161 | { | |
162 | if (!git_graft_file) | |
163 | setup_git_env(); | |
164 | return git_graft_file; | |
165 | } | |
166 | ||
167 | int set_git_dir(const char *path) | |
168 | { | |
169 | if (setenv(GIT_DIR_ENVIRONMENT, path, 1)) | |
170 | return error("Could not set GIT_DIR to '%s'", path); | |
171 | setup_git_env(); | |
172 | return 0; | |
173 | } |