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"
11char git_default_email[MAX_GITNAME];
13char git_default_name[MAX_GITNAME];
14int trust_executable_bit = 1;
15int quote_path_fully = 1;
16int has_symlinks = 1;
17int assume_unchanged;
18int prefer_symlink_refs;
19int is_bare_repository_cfg = -1; /* unspecified */
20int log_all_ref_updates = -1; /* unspecified */
21int warn_ambiguous_refs = 1;
22int repository_format_version;
23const char *git_commit_encoding;
24const char *git_log_output_encoding;
25int shared_repository = PERM_UMASK;
26const char *apply_default_whitespace;
27int zlib_compression_level = Z_BEST_SPEED;
28int core_compression_level;
29int core_compression_seen;
30size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE;
31size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT;
32size_t delta_base_cache_limit = 16 * 1024 * 1024;
33const char *pager_program;
34int pager_use_color = 1;
35const char *editor_program;
36const char *excludes_file;
37int auto_crlf = 0; /* 1: both ways, -1: only when adding git objects */
38enum safe_crlf safe_crlf = SAFE_CRLF_WARN;
39unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
40/* This is set by setup_git_dir_gently() and/or git_default_config() */
42char *git_work_tree_cfg;
43static const char *work_tree;
44static const char *git_dir;
46static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file;
47static void setup_git_env(void)
49{
50 git_dir = getenv(GIT_DIR_ENVIRONMENT);
51 if (!git_dir)
52 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
53 git_object_dir = getenv(DB_ENVIRONMENT);
54 if (!git_object_dir) {
55 git_object_dir = xmalloc(strlen(git_dir) + 9);
56 sprintf(git_object_dir, "%s/objects", git_dir);
57 }
58 git_refs_dir = xmalloc(strlen(git_dir) + 6);
59 sprintf(git_refs_dir, "%s/refs", git_dir);
60 git_index_file = getenv(INDEX_ENVIRONMENT);
61 if (!git_index_file) {
62 git_index_file = xmalloc(strlen(git_dir) + 7);
63 sprintf(git_index_file, "%s/index", git_dir);
64 }
65 git_graft_file = getenv(GRAFT_ENVIRONMENT);
66 if (!git_graft_file)
67 git_graft_file = xstrdup(git_path("info/grafts"));
68}
69int is_bare_repository(void)
71{
72 /* if core.bare is not 'false', let's see if there is a work tree */
73 return is_bare_repository_cfg && !get_git_work_tree();
74}
75const char *get_git_dir(void)
77{
78 if (!git_dir)
79 setup_git_env();
80 return git_dir;
81}
82const char *get_git_work_tree(void)
84{
85 static int initialized = 0;
86 if (!initialized) {
87 work_tree = getenv(GIT_WORK_TREE_ENVIRONMENT);
88 /* core.bare = true overrides implicit and config work tree */
89 if (!work_tree && is_bare_repository_cfg < 1) {
90 work_tree = git_work_tree_cfg;
91 /* make_absolute_path also normalizes the path */
92 if (work_tree && !is_absolute_path(work_tree))
93 work_tree = xstrdup(make_absolute_path(git_path(work_tree)));
94 } else if (work_tree)
95 work_tree = xstrdup(make_absolute_path(work_tree));
96 initialized = 1;
97 if (work_tree)
98 is_bare_repository_cfg = 0;
99 }
100 return work_tree;
101}
102char *get_object_directory(void)
104{
105 if (!git_object_dir)
106 setup_git_env();
107 return git_object_dir;
108}
109char *get_refs_directory(void)
111{
112 if (!git_refs_dir)
113 setup_git_env();
114 return git_refs_dir;
115}
116char *get_index_file(void)
118{
119 if (!git_index_file)
120 setup_git_env();
121 return git_index_file;
122}
123char *get_graft_file(void)
125{
126 if (!git_graft_file)
127 setup_git_env();
128 return git_graft_file;
129}
130int set_git_dir(const char *path)
132{
133 if (setenv(GIT_DIR_ENVIRONMENT, path, 1))
134 return error("Could not set GIT_DIR to '%s'", path);
135 setup_git_env();
136 return 0;
137}