GIT 1.6.5
[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;
d7f46334 41int auto_crlf = 0; /* 1: both ways, -1: only when adding git objects */
dae556bd 42int read_replace_refs = 1;
21e5ad50 43enum safe_crlf safe_crlf = SAFE_CRLF_WARN;
cf1b7869 44unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
9ed36cfa 45enum branch_track git_branch_track = BRANCH_TRACK_REMOTE;
c998ae9b 46enum rebase_setup_type autorebase = AUTOREBASE_NEVER;
bba0fd22 47enum push_default_type push_default = PUSH_DEFAULT_MATCHING;
348df166
JS
48#ifndef OBJECT_CREATION_MODE
49#define OBJECT_CREATION_MODE OBJECT_CREATION_USES_HARDLINKS
be66a6c4 50#endif
348df166 51enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE;
7f3140cd 52int grafts_replace_parents = 1;
e1b10391 53
671c9b7e
LT
54/* Parallel index stat data preload? */
55int core_preload_index = 0;
56
e90fdc39
JS
57/* This is set by setup_git_dir_gently() and/or git_default_config() */
58char *git_work_tree_cfg;
19757d80 59static char *work_tree;
e90fdc39 60
c5fba16c
PH
61static const char *git_dir;
62static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file;
63
e1b10391
LT
64static void setup_git_env(void)
65{
66 git_dir = getenv(GIT_DIR_ENVIRONMENT);
b44ebb19
LH
67 if (!git_dir)
68 git_dir = read_gitfile_gently(DEFAULT_GIT_DIR_ENVIRONMENT);
e1b10391
LT
69 if (!git_dir)
70 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
71 git_object_dir = getenv(DB_ENVIRONMENT);
72 if (!git_object_dir) {
73 git_object_dir = xmalloc(strlen(git_dir) + 9);
74 sprintf(git_object_dir, "%s/objects", git_dir);
75 }
76 git_refs_dir = xmalloc(strlen(git_dir) + 6);
77 sprintf(git_refs_dir, "%s/refs", git_dir);
78 git_index_file = getenv(INDEX_ENVIRONMENT);
79 if (!git_index_file) {
80 git_index_file = xmalloc(strlen(git_dir) + 7);
81 sprintf(git_index_file, "%s/index", git_dir);
82 }
83 git_graft_file = getenv(GRAFT_ENVIRONMENT);
84 if (!git_graft_file)
a4f34cbb 85 git_graft_file = git_pathdup("info/grafts");
0bee5918
SP
86}
87
7d1864ce 88int is_bare_repository(void)
0bee5918 89{
e90fdc39
JS
90 /* if core.bare is not 'false', let's see if there is a work tree */
91 return is_bare_repository_cfg && !get_git_work_tree();
e1b10391
LT
92}
93
d2b0708e
DP
94int have_git_dir(void)
95{
96 return !!git_dir;
97}
98
c5fba16c 99const char *get_git_dir(void)
e1b10391
LT
100{
101 if (!git_dir)
102 setup_git_env();
103 return git_dir;
104}
105
19757d80
DB
106static int git_work_tree_initialized;
107
108/*
109 * Note. This works only before you used a work tree. This was added
110 * primarily to support git-clone to work in a new repository it just
111 * created, and is not meant to flip between different work trees.
112 */
113void set_git_work_tree(const char *new_work_tree)
114{
115 if (is_bare_repository_cfg >= 0)
116 die("cannot set work tree after initialization");
117 git_work_tree_initialized = 1;
118 free(work_tree);
119 work_tree = xstrdup(make_absolute_path(new_work_tree));
120 is_bare_repository_cfg = 0;
121}
122
e90fdc39
JS
123const char *get_git_work_tree(void)
124{
19757d80 125 if (!git_work_tree_initialized) {
e90fdc39
JS
126 work_tree = getenv(GIT_WORK_TREE_ENVIRONMENT);
127 /* core.bare = true overrides implicit and config work tree */
128 if (!work_tree && is_bare_repository_cfg < 1) {
129 work_tree = git_work_tree_cfg;
130 /* make_absolute_path also normalizes the path */
131 if (work_tree && !is_absolute_path(work_tree))
9db56f71 132 work_tree = xstrdup(make_absolute_path(git_path("%s", work_tree)));
e90fdc39
JS
133 } else if (work_tree)
134 work_tree = xstrdup(make_absolute_path(work_tree));
19757d80 135 git_work_tree_initialized = 1;
e90fdc39
JS
136 if (work_tree)
137 is_bare_repository_cfg = 0;
138 }
139 return work_tree;
140}
141
e1b10391
LT
142char *get_object_directory(void)
143{
144 if (!git_object_dir)
145 setup_git_env();
146 return git_object_dir;
147}
148
e1b10391
LT
149char *get_index_file(void)
150{
151 if (!git_index_file)
152 setup_git_env();
153 return git_index_file;
154}
155
156char *get_graft_file(void)
157{
158 if (!git_graft_file)
159 setup_git_env();
160 return git_graft_file;
161}
d7ac12b2
JS
162
163int set_git_dir(const char *path)
164{
165 if (setenv(GIT_DIR_ENVIRONMENT, path, 1))
166 return error("Could not set GIT_DIR to '%s'", path);
167 setup_git_env();
168 return 0;
169}