core.whitespace: documentation updates.
[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];
14int trust_executable_bit = 1;
9378c161 15int quote_path_fully = 1;
78a8d641 16int has_symlinks = 1;
96f1e58f
DR
17int assume_unchanged;
18int prefer_symlink_refs;
7d1864ce 19int is_bare_repository_cfg = -1; /* unspecified */
510c5a8e 20int log_all_ref_updates = -1; /* unspecified */
1b371f56 21int warn_ambiguous_refs = 1;
96f1e58f 22int repository_format_version;
1a8f2741 23const char *git_commit_encoding;
3a55602e 24const char *git_log_output_encoding;
94df2506 25int shared_repository = PERM_UMASK;
96f1e58f 26const char *apply_default_whitespace;
960ccca6
DH
27int zlib_compression_level = Z_BEST_SPEED;
28int core_compression_level;
29int core_compression_seen;
8c82534d
SP
30size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE;
31size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT;
18bdec11 32size_t delta_base_cache_limit = 16 * 1024 * 1024;
54adf370 33char *pager_program;
b75a82b7 34int pager_in_use;
aa086eb8 35int pager_use_color = 1;
4d87b9c5 36char *editor_program;
d7f46334 37int auto_crlf = 0; /* 1: both ways, -1: only when adding git objects */
a9cc857a 38unsigned whitespace_rule = WS_DEFAULT_RULE;
e1b10391 39
e90fdc39
JS
40/* This is set by setup_git_dir_gently() and/or git_default_config() */
41char *git_work_tree_cfg;
42static const char *work_tree;
43
c5fba16c
PH
44static const char *git_dir;
45static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file;
46
e1b10391
LT
47static void setup_git_env(void)
48{
49 git_dir = getenv(GIT_DIR_ENVIRONMENT);
50 if (!git_dir)
51 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
52 git_object_dir = getenv(DB_ENVIRONMENT);
53 if (!git_object_dir) {
54 git_object_dir = xmalloc(strlen(git_dir) + 9);
55 sprintf(git_object_dir, "%s/objects", git_dir);
56 }
57 git_refs_dir = xmalloc(strlen(git_dir) + 6);
58 sprintf(git_refs_dir, "%s/refs", git_dir);
59 git_index_file = getenv(INDEX_ENVIRONMENT);
60 if (!git_index_file) {
61 git_index_file = xmalloc(strlen(git_dir) + 7);
62 sprintf(git_index_file, "%s/index", git_dir);
63 }
64 git_graft_file = getenv(GRAFT_ENVIRONMENT);
65 if (!git_graft_file)
9befac47 66 git_graft_file = xstrdup(git_path("info/grafts"));
0bee5918
SP
67}
68
7d1864ce 69int is_bare_repository(void)
0bee5918 70{
e90fdc39
JS
71 /* if core.bare is not 'false', let's see if there is a work tree */
72 return is_bare_repository_cfg && !get_git_work_tree();
e1b10391
LT
73}
74
c5fba16c 75const char *get_git_dir(void)
e1b10391
LT
76{
77 if (!git_dir)
78 setup_git_env();
79 return git_dir;
80}
81
e90fdc39
JS
82const char *get_git_work_tree(void)
83{
84 static int initialized = 0;
85 if (!initialized) {
86 work_tree = getenv(GIT_WORK_TREE_ENVIRONMENT);
87 /* core.bare = true overrides implicit and config work tree */
88 if (!work_tree && is_bare_repository_cfg < 1) {
89 work_tree = git_work_tree_cfg;
90 /* make_absolute_path also normalizes the path */
91 if (work_tree && !is_absolute_path(work_tree))
92 work_tree = xstrdup(make_absolute_path(git_path(work_tree)));
93 } else if (work_tree)
94 work_tree = xstrdup(make_absolute_path(work_tree));
95 initialized = 1;
96 if (work_tree)
97 is_bare_repository_cfg = 0;
98 }
99 return work_tree;
100}
101
e1b10391
LT
102char *get_object_directory(void)
103{
104 if (!git_object_dir)
105 setup_git_env();
106 return git_object_dir;
107}
108
109char *get_refs_directory(void)
110{
111 if (!git_refs_dir)
112 setup_git_env();
113 return git_refs_dir;
114}
115
116char *get_index_file(void)
117{
118 if (!git_index_file)
119 setup_git_env();
120 return git_index_file;
121}
122
123char *get_graft_file(void)
124{
125 if (!git_graft_file)
126 setup_git_env();
127 return git_graft_file;
128}
d7ac12b2
JS
129
130int set_git_dir(const char *path)
131{
132 if (setenv(GIT_DIR_ENVIRONMENT, path, 1))
133 return error("Could not set GIT_DIR to '%s'", path);
134 setup_git_env();
135 return 0;
136}