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;
29const char *apply_default_ignorewhitespace;
30int zlib_compression_level = Z_BEST_SPEED;
31int core_compression_level;
32int core_compression_seen;
33int fsync_object_files;
34size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE;
35size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT;
36size_t delta_base_cache_limit = 16 * 1024 * 1024;
37const char *pager_program;
38int pager_use_color = 1;
39const char *editor_program;
40const char *excludes_file;
41enum auto_crlf auto_crlf = AUTO_CRLF_FALSE;
42int read_replace_refs = 1;
43enum eol eol = EOL_UNSET;
44enum safe_crlf safe_crlf = SAFE_CRLF_WARN;
45unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
46enum branch_track git_branch_track = BRANCH_TRACK_REMOTE;
47enum rebase_setup_type autorebase = AUTOREBASE_NEVER;
48enum push_default_type push_default = PUSH_DEFAULT_MATCHING;
49#ifndef OBJECT_CREATION_MODE
50#define OBJECT_CREATION_MODE OBJECT_CREATION_USES_HARDLINKS
51#endif
52enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE;
53char *notes_ref_name;
54int grafts_replace_parents = 1;
55int core_apply_sparse_checkout;
56struct startup_info *startup_info;
57/* Parallel index stat data preload? */
59int core_preload_index = 0;
60/* This is set by setup_git_dir_gently() and/or git_default_config() */
62char *git_work_tree_cfg;
63static char *work_tree;
64static const char *git_dir;
66static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file;
67/*
69 * Repository-local GIT_* environment variables
70 * Remember to update local_repo_env_size in cache.h when
71 * the size of the list changes
72 */
73const char * const local_repo_env[LOCAL_REPO_ENV_SIZE + 1] = {
74 ALTERNATE_DB_ENVIRONMENT,
75 CONFIG_ENVIRONMENT,
76 DB_ENVIRONMENT,
77 GIT_DIR_ENVIRONMENT,
78 GIT_WORK_TREE_ENVIRONMENT,
79 GRAFT_ENVIRONMENT,
80 INDEX_ENVIRONMENT,
81 NO_REPLACE_OBJECTS_ENVIRONMENT,
82 NULL
83};
84static void setup_git_env(void)
86{
87 git_dir = getenv(GIT_DIR_ENVIRONMENT);
88 if (!git_dir)
89 git_dir = read_gitfile_gently(DEFAULT_GIT_DIR_ENVIRONMENT);
90 if (!git_dir)
91 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
92 git_object_dir = getenv(DB_ENVIRONMENT);
93 if (!git_object_dir) {
94 git_object_dir = xmalloc(strlen(git_dir) + 9);
95 sprintf(git_object_dir, "%s/objects", git_dir);
96 }
97 git_refs_dir = xmalloc(strlen(git_dir) + 6);
98 sprintf(git_refs_dir, "%s/refs", git_dir);
99 git_index_file = getenv(INDEX_ENVIRONMENT);
100 if (!git_index_file) {
101 git_index_file = xmalloc(strlen(git_dir) + 7);
102 sprintf(git_index_file, "%s/index", git_dir);
103 }
104 git_graft_file = getenv(GRAFT_ENVIRONMENT);
105 if (!git_graft_file)
106 git_graft_file = git_pathdup("info/grafts");
107 if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT))
108 read_replace_refs = 0;
109}
110int is_bare_repository(void)
112{
113 /* if core.bare is not 'false', let's see if there is a work tree */
114 return is_bare_repository_cfg && !get_git_work_tree();
115}
116int have_git_dir(void)
118{
119 return !!git_dir;
120}
121const char *get_git_dir(void)
123{
124 if (!git_dir)
125 setup_git_env();
126 return git_dir;
127}
128static int git_work_tree_initialized;
130/*
132 * Note. This works only before you used a work tree. This was added
133 * primarily to support git-clone to work in a new repository it just
134 * created, and is not meant to flip between different work trees.
135 */
136void set_git_work_tree(const char *new_work_tree)
137{
138 if (is_bare_repository_cfg >= 0)
139 die("cannot set work tree after initialization");
140 git_work_tree_initialized = 1;
141 free(work_tree);
142 work_tree = xstrdup(make_absolute_path(new_work_tree));
143 is_bare_repository_cfg = 0;
144}
145const char *get_git_work_tree(void)
147{
148 if (!git_work_tree_initialized) {
149 work_tree = getenv(GIT_WORK_TREE_ENVIRONMENT);
150 /* core.bare = true overrides implicit and config work tree */
151 if (!work_tree && is_bare_repository_cfg < 1) {
152 work_tree = git_work_tree_cfg;
153 /* make_absolute_path also normalizes the path */
154 if (work_tree && !is_absolute_path(work_tree))
155 work_tree = xstrdup(make_absolute_path(git_path("%s", work_tree)));
156 } else if (work_tree)
157 work_tree = xstrdup(make_absolute_path(work_tree));
158 git_work_tree_initialized = 1;
159 if (work_tree)
160 is_bare_repository_cfg = 0;
161 }
162 return work_tree;
163}
164char *get_object_directory(void)
166{
167 if (!git_object_dir)
168 setup_git_env();
169 return git_object_dir;
170}
171char *get_index_file(void)
173{
174 if (!git_index_file)
175 setup_git_env();
176 return git_index_file;
177}
178char *get_graft_file(void)
180{
181 if (!git_graft_file)
182 setup_git_env();
183 return git_graft_file;
184}
185int set_git_dir(const char *path)
187{
188 if (setenv(GIT_DIR_ENVIRONMENT, path, 1))
189 return error("Could not set GIT_DIR to '%s'", path);
190 setup_git_env();
191 return 0;
192}