git-svn: pass an unambiguous ref to rev-list when grafting-branches
[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];
93821bd9 14int use_legacy_headers = 1;
e1b10391 15int trust_executable_bit = 1;
96f1e58f
DR
16int assume_unchanged;
17int prefer_symlink_refs;
18int log_all_ref_updates;
1b371f56 19int warn_ambiguous_refs = 1;
96f1e58f 20int repository_format_version;
d2c11a38
JH
21char *git_commit_encoding;
22char *git_log_output_encoding;
94df2506 23int shared_repository = PERM_UMASK;
96f1e58f 24const char *apply_default_whitespace;
12f6c308 25int zlib_compression_level = Z_DEFAULT_COMPRESSION;
8c82534d
SP
26size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE;
27size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT;
b75a82b7 28int pager_in_use;
aa086eb8 29int pager_use_color = 1;
e1b10391 30
c5fba16c
PH
31static const char *git_dir;
32static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file;
33
e1b10391
LT
34static void setup_git_env(void)
35{
36 git_dir = getenv(GIT_DIR_ENVIRONMENT);
37 if (!git_dir)
38 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
39 git_object_dir = getenv(DB_ENVIRONMENT);
40 if (!git_object_dir) {
41 git_object_dir = xmalloc(strlen(git_dir) + 9);
42 sprintf(git_object_dir, "%s/objects", git_dir);
43 }
44 git_refs_dir = xmalloc(strlen(git_dir) + 6);
45 sprintf(git_refs_dir, "%s/refs", git_dir);
46 git_index_file = getenv(INDEX_ENVIRONMENT);
47 if (!git_index_file) {
48 git_index_file = xmalloc(strlen(git_dir) + 7);
49 sprintf(git_index_file, "%s/index", git_dir);
50 }
51 git_graft_file = getenv(GRAFT_ENVIRONMENT);
52 if (!git_graft_file)
9befac47 53 git_graft_file = xstrdup(git_path("info/grafts"));
0bee5918
SP
54 log_all_ref_updates = !is_bare_git_dir(git_dir);
55}
56
57int is_bare_git_dir (const char *dir)
58{
59 const char *s;
60 if (!strcmp(dir, DEFAULT_GIT_DIR_ENVIRONMENT))
61 return 0;
62 s = strrchr(dir, '/');
63 return !s || strcmp(s + 1, DEFAULT_GIT_DIR_ENVIRONMENT);
e1b10391
LT
64}
65
c5fba16c 66const char *get_git_dir(void)
e1b10391
LT
67{
68 if (!git_dir)
69 setup_git_env();
70 return git_dir;
71}
72
73char *get_object_directory(void)
74{
75 if (!git_object_dir)
76 setup_git_env();
77 return git_object_dir;
78}
79
80char *get_refs_directory(void)
81{
82 if (!git_refs_dir)
83 setup_git_env();
84 return git_refs_dir;
85}
86
87char *get_index_file(void)
88{
89 if (!git_index_file)
90 setup_git_env();
91 return git_index_file;
92}
93
94char *get_graft_file(void)
95{
96 if (!git_graft_file)
97 setup_git_env();
98 return git_graft_file;
99}
100
101