fff4a4da50d1054dd3989d40ec5310ea7258f97c
[git/git.git] / environment.c
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 use_legacy_headers = 1;
15 int trust_executable_bit = 1;
16 int has_symlinks = 1;
17 int assume_unchanged;
18 int prefer_symlink_refs;
19 int is_bare_repository_cfg = -1; /* unspecified */
20 int log_all_ref_updates = -1; /* unspecified */
21 int warn_ambiguous_refs = 1;
22 int repository_format_version;
23 const char *git_commit_encoding;
24 const char *git_log_output_encoding;
25 int shared_repository = PERM_UMASK;
26 const char *apply_default_whitespace;
27 int zlib_compression_level = Z_DEFAULT_COMPRESSION;
28 size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE;
29 size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT;
30 int pager_in_use;
31 int pager_use_color = 1;
32 int auto_crlf = 0; /* 1: both ways, -1: only when adding git objects */
33
34 static const char *git_dir;
35 static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file;
36
37 static void setup_git_env(void)
38 {
39 git_dir = getenv(GIT_DIR_ENVIRONMENT);
40 if (!git_dir)
41 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
42 git_object_dir = getenv(DB_ENVIRONMENT);
43 if (!git_object_dir) {
44 git_object_dir = xmalloc(strlen(git_dir) + 9);
45 sprintf(git_object_dir, "%s/objects", git_dir);
46 }
47 git_refs_dir = xmalloc(strlen(git_dir) + 6);
48 sprintf(git_refs_dir, "%s/refs", git_dir);
49 git_index_file = getenv(INDEX_ENVIRONMENT);
50 if (!git_index_file) {
51 git_index_file = xmalloc(strlen(git_dir) + 7);
52 sprintf(git_index_file, "%s/index", git_dir);
53 }
54 git_graft_file = getenv(GRAFT_ENVIRONMENT);
55 if (!git_graft_file)
56 git_graft_file = xstrdup(git_path("info/grafts"));
57 }
58
59 int is_bare_repository(void)
60 {
61 const char *dir, *s;
62 if (0 <= is_bare_repository_cfg)
63 return is_bare_repository_cfg;
64
65 dir = get_git_dir();
66 if (!strcmp(dir, DEFAULT_GIT_DIR_ENVIRONMENT))
67 return 0;
68 s = strrchr(dir, '/');
69 return !s || strcmp(s + 1, DEFAULT_GIT_DIR_ENVIRONMENT);
70 }
71
72 const char *get_git_dir(void)
73 {
74 if (!git_dir)
75 setup_git_env();
76 return git_dir;
77 }
78
79 char *get_object_directory(void)
80 {
81 if (!git_object_dir)
82 setup_git_env();
83 return git_object_dir;
84 }
85
86 char *get_refs_directory(void)
87 {
88 if (!git_refs_dir)
89 setup_git_env();
90 return git_refs_dir;
91 }
92
93 char *get_index_file(void)
94 {
95 if (!git_index_file)
96 setup_git_env();
97 return git_index_file;
98 }
99
100 char *get_graft_file(void)
101 {
102 if (!git_graft_file)
103 setup_git_env();
104 return git_graft_file;
105 }
106
107