Merge branch 'maint'
[git/git.git] / environment.c
CommitLineData
e1b10391
LT
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"
11
12char git_default_email[MAX_GITNAME];
13char git_default_name[MAX_GITNAME];
bb1ae3f6 14int user_ident_explicitly_given;
e1b10391 15int trust_executable_bit = 1;
1ce4790b 16int trust_ctime = 1;
78a8d641 17int has_symlinks = 1;
0a9b88b7 18int ignore_case;
96f1e58f
DR
19int assume_unchanged;
20int prefer_symlink_refs;
7d1864ce 21int is_bare_repository_cfg = -1; /* unspecified */
510c5a8e 22int log_all_ref_updates = -1; /* unspecified */
1b371f56 23int warn_ambiguous_refs = 1;
96f1e58f 24int repository_format_version;
1a8f2741 25const char *git_commit_encoding;
3a55602e 26const char *git_log_output_encoding;
94df2506 27int shared_repository = PERM_UMASK;
96f1e58f 28const char *apply_default_whitespace;
86c91f91 29const char *apply_default_ignorewhitespace;
960ccca6
DH
30int zlib_compression_level = Z_BEST_SPEED;
31int core_compression_level;
32int core_compression_seen;
aafe9fba 33int fsync_object_files;
8c82534d
SP
34size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE;
35size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT;
18bdec11 36size_t delta_base_cache_limit = 16 * 1024 * 1024;
872da32d 37const char *pager_program;
aa086eb8 38int pager_use_color = 1;
ee9601e6 39const char *editor_program;
dfb068be 40const char *excludes_file;
fd6cce9e 41enum auto_crlf auto_crlf = AUTO_CRLF_FALSE;
dae556bd 42int read_replace_refs = 1;
942e7747 43enum eol eol = EOL_UNSET;
21e5ad50 44enum safe_crlf safe_crlf = SAFE_CRLF_WARN;
cf1b7869 45unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
9ed36cfa 46enum branch_track git_branch_track = BRANCH_TRACK_REMOTE;
c998ae9b 47enum rebase_setup_type autorebase = AUTOREBASE_NEVER;
bba0fd22 48enum push_default_type push_default = PUSH_DEFAULT_MATCHING;
348df166
JS
49#ifndef OBJECT_CREATION_MODE
50#define OBJECT_CREATION_MODE OBJECT_CREATION_USES_HARDLINKS
be66a6c4 51#endif
348df166 52enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE;
a97a7468 53char *notes_ref_name;
7f3140cd 54int grafts_replace_parents = 1;
08aefc9e 55int core_apply_sparse_checkout;
e1b10391 56
671c9b7e
LT
57/* Parallel index stat data preload? */
58int core_preload_index = 0;
59
e90fdc39
JS
60/* This is set by setup_git_dir_gently() and/or git_default_config() */
61char *git_work_tree_cfg;
19757d80 62static char *work_tree;
e90fdc39 63
c5fba16c
PH
64static const char *git_dir;
65static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file;
66
48a7c1c4
GB
67/*
68 * Repository-local GIT_* environment variables
69 * Remember to update local_repo_env_size in cache.h when
70 * the size of the list changes
71 */
72const char * const local_repo_env[LOCAL_REPO_ENV_SIZE + 1] = {
73 ALTERNATE_DB_ENVIRONMENT,
74 CONFIG_ENVIRONMENT,
75 DB_ENVIRONMENT,
76 GIT_DIR_ENVIRONMENT,
77 GIT_WORK_TREE_ENVIRONMENT,
78 GRAFT_ENVIRONMENT,
79 INDEX_ENVIRONMENT,
80 NO_REPLACE_OBJECTS_ENVIRONMENT,
81 NULL
82};
83
e1b10391
LT
84static void setup_git_env(void)
85{
86 git_dir = getenv(GIT_DIR_ENVIRONMENT);
b44ebb19
LH
87 if (!git_dir)
88 git_dir = read_gitfile_gently(DEFAULT_GIT_DIR_ENVIRONMENT);
e1b10391
LT
89 if (!git_dir)
90 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
91 git_object_dir = getenv(DB_ENVIRONMENT);
92 if (!git_object_dir) {
93 git_object_dir = xmalloc(strlen(git_dir) + 9);
94 sprintf(git_object_dir, "%s/objects", git_dir);
95 }
96 git_refs_dir = xmalloc(strlen(git_dir) + 6);
97 sprintf(git_refs_dir, "%s/refs", git_dir);
98 git_index_file = getenv(INDEX_ENVIRONMENT);
99 if (!git_index_file) {
100 git_index_file = xmalloc(strlen(git_dir) + 7);
101 sprintf(git_index_file, "%s/index", git_dir);
102 }
103 git_graft_file = getenv(GRAFT_ENVIRONMENT);
104 if (!git_graft_file)
a4f34cbb 105 git_graft_file = git_pathdup("info/grafts");
6476b38b
CC
106 if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT))
107 read_replace_refs = 0;
0bee5918
SP
108}
109
7d1864ce 110int is_bare_repository(void)
0bee5918 111{
e90fdc39
JS
112 /* if core.bare is not 'false', let's see if there is a work tree */
113 return is_bare_repository_cfg && !get_git_work_tree();
e1b10391
LT
114}
115
d2b0708e
DP
116int have_git_dir(void)
117{
118 return !!git_dir;
119}
120
c5fba16c 121const char *get_git_dir(void)
e1b10391
LT
122{
123 if (!git_dir)
124 setup_git_env();
125 return git_dir;
126}
127
19757d80
DB
128static int git_work_tree_initialized;
129
130/*
131 * Note. This works only before you used a work tree. This was added
132 * primarily to support git-clone to work in a new repository it just
133 * created, and is not meant to flip between different work trees.
134 */
135void set_git_work_tree(const char *new_work_tree)
136{
137 if (is_bare_repository_cfg >= 0)
138 die("cannot set work tree after initialization");
139 git_work_tree_initialized = 1;
140 free(work_tree);
141 work_tree = xstrdup(make_absolute_path(new_work_tree));
142 is_bare_repository_cfg = 0;
143}
144
e90fdc39
JS
145const char *get_git_work_tree(void)
146{
19757d80 147 if (!git_work_tree_initialized) {
e90fdc39
JS
148 work_tree = getenv(GIT_WORK_TREE_ENVIRONMENT);
149 /* core.bare = true overrides implicit and config work tree */
150 if (!work_tree && is_bare_repository_cfg < 1) {
151 work_tree = git_work_tree_cfg;
152 /* make_absolute_path also normalizes the path */
153 if (work_tree && !is_absolute_path(work_tree))
9db56f71 154 work_tree = xstrdup(make_absolute_path(git_path("%s", work_tree)));
e90fdc39
JS
155 } else if (work_tree)
156 work_tree = xstrdup(make_absolute_path(work_tree));
19757d80 157 git_work_tree_initialized = 1;
e90fdc39
JS
158 if (work_tree)
159 is_bare_repository_cfg = 0;
160 }
161 return work_tree;
162}
163
e1b10391
LT
164char *get_object_directory(void)
165{
166 if (!git_object_dir)
167 setup_git_env();
168 return git_object_dir;
169}
170
e1b10391
LT
171char *get_index_file(void)
172{
173 if (!git_index_file)
174 setup_git_env();
175 return git_index_file;
176}
177
178char *get_graft_file(void)
179{
180 if (!git_graft_file)
181 setup_git_env();
182 return git_graft_file;
183}
d7ac12b2
JS
184
185int set_git_dir(const char *path)
186{
187 if (setenv(GIT_DIR_ENVIRONMENT, path, 1))
188 return error("Could not set GIT_DIR to '%s'", path);
189 setup_git_env();
190 return 0;
191}