Merge branch 'rs/archive'
[git/builtin-gsoc.git] / environment.c
blobb5a6c69f7c1d214daa2556d04dd35e0976fc6e5e
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.
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"
12 char git_default_email[MAX_GITNAME];
13 char git_default_name[MAX_GITNAME];
14 int trust_executable_bit = 1;
15 int quote_path_fully = 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_BEST_SPEED;
28 int core_compression_level;
29 int core_compression_seen;
30 size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE;
31 size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT;
32 size_t delta_base_cache_limit = 16 * 1024 * 1024;
33 char *pager_program;
34 int pager_in_use;
35 int pager_use_color = 1;
36 char *editor_program;
37 int auto_crlf = 0; /* 1: both ways, -1: only when adding git objects */
39 /* This is set by setup_git_dir_gently() and/or git_default_config() */
40 char *git_work_tree_cfg;
41 static const char *work_tree;
43 static const char *git_dir;
44 static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file;
46 static void setup_git_env(void)
48 git_dir = getenv(GIT_DIR_ENVIRONMENT);
49 if (!git_dir)
50 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
51 git_object_dir = getenv(DB_ENVIRONMENT);
52 if (!git_object_dir) {
53 git_object_dir = xmalloc(strlen(git_dir) + 9);
54 sprintf(git_object_dir, "%s/objects", git_dir);
56 git_refs_dir = xmalloc(strlen(git_dir) + 6);
57 sprintf(git_refs_dir, "%s/refs", git_dir);
58 git_index_file = getenv(INDEX_ENVIRONMENT);
59 if (!git_index_file) {
60 git_index_file = xmalloc(strlen(git_dir) + 7);
61 sprintf(git_index_file, "%s/index", git_dir);
63 git_graft_file = getenv(GRAFT_ENVIRONMENT);
64 if (!git_graft_file)
65 git_graft_file = xstrdup(git_path("info/grafts"));
68 int is_bare_repository(void)
70 /* if core.bare is not 'false', let's see if there is a work tree */
71 return is_bare_repository_cfg && !get_git_work_tree();
74 const char *get_git_dir(void)
76 if (!git_dir)
77 setup_git_env();
78 return git_dir;
81 const char *get_git_work_tree(void)
83 static int initialized = 0;
84 if (!initialized) {
85 work_tree = getenv(GIT_WORK_TREE_ENVIRONMENT);
86 /* core.bare = true overrides implicit and config work tree */
87 if (!work_tree && is_bare_repository_cfg < 1) {
88 work_tree = git_work_tree_cfg;
89 /* make_absolute_path also normalizes the path */
90 if (work_tree && !is_absolute_path(work_tree))
91 work_tree = xstrdup(make_absolute_path(git_path(work_tree)));
92 } else if (work_tree)
93 work_tree = xstrdup(make_absolute_path(work_tree));
94 initialized = 1;
95 if (work_tree)
96 is_bare_repository_cfg = 0;
98 return work_tree;
101 char *get_object_directory(void)
103 if (!git_object_dir)
104 setup_git_env();
105 return git_object_dir;
108 char *get_refs_directory(void)
110 if (!git_refs_dir)
111 setup_git_env();
112 return git_refs_dir;
115 char *get_index_file(void)
117 if (!git_index_file)
118 setup_git_env();
119 return git_index_file;
122 char *get_graft_file(void)
124 if (!git_graft_file)
125 setup_git_env();
126 return git_graft_file;
129 int set_git_dir(const char *path)
131 if (setenv(GIT_DIR_ENVIRONMENT, path, 1))
132 return error("Could not set GIT_DIR to '%s'", path);
133 setup_git_env();
134 return 0;