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 trust_ctime = 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;
32int fsync_object_files;
33size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE;
34size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT;
35size_t delta_base_cache_limit = 16 * 1024 * 1024;
36const char *pager_program;
37int pager_use_color = 1;
38const char *editor_program;
39const char *excludes_file;
40int auto_crlf = 0; /* 1: both ways, -1: only when adding git objects */
41enum safe_crlf safe_crlf = SAFE_CRLF_WARN;
42unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
43enum branch_track git_branch_track = BRANCH_TRACK_REMOTE;
44enum rebase_setup_type autorebase = AUTOREBASE_NEVER;
45enum push_default_type push_default = PUSH_DEFAULT_UNSPECIFIED;
46/* Parallel index stat data preload? */
48int core_preload_index = 0;
49/* This is set by setup_git_dir_gently() and/or git_default_config() */
51char *git_work_tree_cfg;
52static char *work_tree;
53static const char *git_dir;
55static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file;
56static void setup_git_env(void)
58{
59 git_dir = getenv(GIT_DIR_ENVIRONMENT);
60 if (!git_dir)
61 git_dir = read_gitfile_gently(DEFAULT_GIT_DIR_ENVIRONMENT);
62 if (!git_dir)
63 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
64 git_object_dir = getenv(DB_ENVIRONMENT);
65 if (!git_object_dir) {
66 git_object_dir = xmalloc(strlen(git_dir) + 9);
67 sprintf(git_object_dir, "%s/objects", git_dir);
68 }
69 git_refs_dir = xmalloc(strlen(git_dir) + 6);
70 sprintf(git_refs_dir, "%s/refs", git_dir);
71 git_index_file = getenv(INDEX_ENVIRONMENT);
72 if (!git_index_file) {
73 git_index_file = xmalloc(strlen(git_dir) + 7);
74 sprintf(git_index_file, "%s/index", git_dir);
75 }
76 git_graft_file = getenv(GRAFT_ENVIRONMENT);
77 if (!git_graft_file)
78 git_graft_file = git_pathdup("info/grafts");
79}
80int is_bare_repository(void)
82{
83 /* if core.bare is not 'false', let's see if there is a work tree */
84 return is_bare_repository_cfg && !get_git_work_tree();
85}
86int have_git_dir(void)
88{
89 return !!git_dir;
90}
91const char *get_git_dir(void)
93{
94 if (!git_dir)
95 setup_git_env();
96 return git_dir;
97}
98static int git_work_tree_initialized;
100/*
102 * Note. This works only before you used a work tree. This was added
103 * primarily to support git-clone to work in a new repository it just
104 * created, and is not meant to flip between different work trees.
105 */
106void set_git_work_tree(const char *new_work_tree)
107{
108 if (is_bare_repository_cfg >= 0)
109 die("cannot set work tree after initialization");
110 git_work_tree_initialized = 1;
111 free(work_tree);
112 work_tree = xstrdup(make_absolute_path(new_work_tree));
113 is_bare_repository_cfg = 0;
114}
115const char *get_git_work_tree(void)
117{
118 if (!git_work_tree_initialized) {
119 work_tree = getenv(GIT_WORK_TREE_ENVIRONMENT);
120 /* core.bare = true overrides implicit and config work tree */
121 if (!work_tree && is_bare_repository_cfg < 1) {
122 work_tree = git_work_tree_cfg;
123 /* make_absolute_path also normalizes the path */
124 if (work_tree && !is_absolute_path(work_tree))
125 work_tree = xstrdup(make_absolute_path(git_path("%s", work_tree)));
126 } else if (work_tree)
127 work_tree = xstrdup(make_absolute_path(work_tree));
128 git_work_tree_initialized = 1;
129 if (work_tree)
130 is_bare_repository_cfg = 0;
131 }
132 return work_tree;
133}
134char *get_object_directory(void)
136{
137 if (!git_object_dir)
138 setup_git_env();
139 return git_object_dir;
140}
141char *get_index_file(void)
143{
144 if (!git_index_file)
145 setup_git_env();
146 return git_index_file;
147}
148char *get_graft_file(void)
150{
151 if (!git_graft_file)
152 setup_git_env();
153 return git_graft_file;
154}
155int set_git_dir(const char *path)
157{
158 if (setenv(GIT_DIR_ENVIRONMENT, path, 1))
159 return error("Could not set GIT_DIR to '%s'", path);
160 setup_git_env();
161 return 0;
162}