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 user_ident_explicitly_given;
15int trust_executable_bit = 1;
16int quote_path_fully = 1;
17int has_symlinks = 1;
18int ignore_case;
19int assume_unchanged;
20int prefer_symlink_refs;
21int is_bare_repository_cfg = -1; /* unspecified */
22int log_all_ref_updates = -1; /* unspecified */
23int warn_ambiguous_refs = 1;
24int repository_format_version;
25const char *git_commit_encoding;
26const char *git_log_output_encoding;
27int shared_repository = PERM_UMASK;
28const char *apply_default_whitespace;
29int zlib_compression_level = Z_BEST_SPEED;
30int core_compression_level;
31int core_compression_seen;
32size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE;
33size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT;
34size_t delta_base_cache_limit = 16 * 1024 * 1024;
35const char *pager_program;
36int pager_use_color = 1;
37const char *editor_program;
38const char *excludes_file;
39int auto_crlf = 0; /* 1: both ways, -1: only when adding git objects */
40enum safe_crlf safe_crlf = SAFE_CRLF_WARN;
41unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
42enum branch_track git_branch_track = BRANCH_TRACK_REMOTE;
43enum rebase_setup_type autorebase = AUTOREBASE_NEVER;
44/* This is set by setup_git_dir_gently() and/or git_default_config() */
46char *git_work_tree_cfg;
47static char *work_tree;
48static const char *git_dir;
50static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file;
51static void setup_git_env(void)
53{
54 git_dir = getenv(GIT_DIR_ENVIRONMENT);
55 if (!git_dir)
56 git_dir = read_gitfile_gently(DEFAULT_GIT_DIR_ENVIRONMENT);
57 if (!git_dir)
58 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
59 git_object_dir = getenv(DB_ENVIRONMENT);
60 if (!git_object_dir) {
61 git_object_dir = xmalloc(strlen(git_dir) + 9);
62 sprintf(git_object_dir, "%s/objects", git_dir);
63 }
64 git_refs_dir = xmalloc(strlen(git_dir) + 6);
65 sprintf(git_refs_dir, "%s/refs", git_dir);
66 git_index_file = getenv(INDEX_ENVIRONMENT);
67 if (!git_index_file) {
68 git_index_file = xmalloc(strlen(git_dir) + 7);
69 sprintf(git_index_file, "%s/index", git_dir);
70 }
71 git_graft_file = getenv(GRAFT_ENVIRONMENT);
72 if (!git_graft_file)
73 git_graft_file = xstrdup(git_path("info/grafts"));
74}
75int is_bare_repository(void)
77{
78 /* if core.bare is not 'false', let's see if there is a work tree */
79 return is_bare_repository_cfg && !get_git_work_tree();
80}
81const char *get_git_dir(void)
83{
84 if (!git_dir)
85 setup_git_env();
86 return git_dir;
87}
88static int git_work_tree_initialized;
90/*
92 * Note. This works only before you used a work tree. This was added
93 * primarily to support git-clone to work in a new repository it just
94 * created, and is not meant to flip between different work trees.
95 */
96void set_git_work_tree(const char *new_work_tree)
97{
98 if (is_bare_repository_cfg >= 0)
99 die("cannot set work tree after initialization");
100 git_work_tree_initialized = 1;
101 free(work_tree);
102 work_tree = xstrdup(make_absolute_path(new_work_tree));
103 is_bare_repository_cfg = 0;
104}
105const char *get_git_work_tree(void)
107{
108 if (!git_work_tree_initialized) {
109 work_tree = getenv(GIT_WORK_TREE_ENVIRONMENT);
110 /* core.bare = true overrides implicit and config work tree */
111 if (!work_tree && is_bare_repository_cfg < 1) {
112 work_tree = git_work_tree_cfg;
113 /* make_absolute_path also normalizes the path */
114 if (work_tree && !is_absolute_path(work_tree))
115 work_tree = xstrdup(make_absolute_path(git_path(work_tree)));
116 } else if (work_tree)
117 work_tree = xstrdup(make_absolute_path(work_tree));
118 git_work_tree_initialized = 1;
119 if (work_tree)
120 is_bare_repository_cfg = 0;
121 }
122 return work_tree;
123}
124char *get_object_directory(void)
126{
127 if (!git_object_dir)
128 setup_git_env();
129 return git_object_dir;
130}
131char *get_refs_directory(void)
133{
134 if (!git_refs_dir)
135 setup_git_env();
136 return git_refs_dir;
137}
138char *get_index_file(void)
140{
141 if (!git_index_file)
142 setup_git_env();
143 return git_index_file;
144}
145char *get_graft_file(void)
147{
148 if (!git_graft_file)
149 setup_git_env();
150 return git_graft_file;
151}
152int set_git_dir(const char *path)
154{
155 if (setenv(GIT_DIR_ENVIRONMENT, path, 1))
156 return error("Could not set GIT_DIR to '%s'", path);
157 setup_git_env();
158 return 0;
159}