let pack-objects do the writing of unreachable objects as loose objects
[git/spearce.git] / environment.c
blobfcd1ee5ef8c0999fce0095a2d6a792e5d221c50a
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.
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"
12 char git_default_email[MAX_GITNAME];
13 char git_default_name[MAX_GITNAME];
14 int trust_executable_bit = 1;
15 int quote_path_fully = 1;
16 int has_symlinks = 1;
17 int assume_unchanged;
18 int prefer_symlink_refs;
19 int is_bare_repository_cfg = -1; /* unspecified */
20 int log_all_ref_updates = -1; /* unspecified */
21 int warn_ambiguous_refs = 1;
22 int repository_format_version;
23 const char *git_commit_encoding;
24 const char *git_log_output_encoding;
25 int shared_repository = PERM_UMASK;
26 const char *apply_default_whitespace;
27 int zlib_compression_level = Z_BEST_SPEED;
28 int core_compression_level;
29 int core_compression_seen;
30 size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE;
31 size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT;
32 size_t delta_base_cache_limit = 16 * 1024 * 1024;
33 const char *pager_program;
34 int pager_use_color = 1;
35 const char *editor_program;
36 const char *excludes_file;
37 int auto_crlf = 0; /* 1: both ways, -1: only when adding git objects */
38 enum safe_crlf safe_crlf = SAFE_CRLF_WARN;
39 unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
40 enum branch_track git_branch_track = BRANCH_TRACK_REMOTE;
42 /* This is set by setup_git_dir_gently() and/or git_default_config() */
43 char *git_work_tree_cfg;
44 static const char *work_tree;
46 static const char *git_dir;
47 static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file;
49 static void setup_git_env(void)
51 git_dir = getenv(GIT_DIR_ENVIRONMENT);
52 if (!git_dir)
53 git_dir = read_gitfile_gently(DEFAULT_GIT_DIR_ENVIRONMENT);
54 if (!git_dir)
55 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
56 git_object_dir = getenv(DB_ENVIRONMENT);
57 if (!git_object_dir) {
58 git_object_dir = xmalloc(strlen(git_dir) + 9);
59 sprintf(git_object_dir, "%s/objects", git_dir);
61 git_refs_dir = xmalloc(strlen(git_dir) + 6);
62 sprintf(git_refs_dir, "%s/refs", git_dir);
63 git_index_file = getenv(INDEX_ENVIRONMENT);
64 if (!git_index_file) {
65 git_index_file = xmalloc(strlen(git_dir) + 7);
66 sprintf(git_index_file, "%s/index", git_dir);
68 git_graft_file = getenv(GRAFT_ENVIRONMENT);
69 if (!git_graft_file)
70 git_graft_file = xstrdup(git_path("info/grafts"));
73 int is_bare_repository(void)
75 /* if core.bare is not 'false', let's see if there is a work tree */
76 return is_bare_repository_cfg && !get_git_work_tree();
79 const char *get_git_dir(void)
81 if (!git_dir)
82 setup_git_env();
83 return git_dir;
86 const char *get_git_work_tree(void)
88 static int initialized = 0;
89 if (!initialized) {
90 work_tree = getenv(GIT_WORK_TREE_ENVIRONMENT);
91 /* core.bare = true overrides implicit and config work tree */
92 if (!work_tree && is_bare_repository_cfg < 1) {
93 work_tree = git_work_tree_cfg;
94 /* make_absolute_path also normalizes the path */
95 if (work_tree && !is_absolute_path(work_tree))
96 work_tree = xstrdup(make_absolute_path(git_path(work_tree)));
97 } else if (work_tree)
98 work_tree = xstrdup(make_absolute_path(work_tree));
99 initialized = 1;
100 if (work_tree)
101 is_bare_repository_cfg = 0;
103 return work_tree;
106 char *get_object_directory(void)
108 if (!git_object_dir)
109 setup_git_env();
110 return git_object_dir;
113 char *get_refs_directory(void)
115 if (!git_refs_dir)
116 setup_git_env();
117 return git_refs_dir;
120 char *get_index_file(void)
122 if (!git_index_file)
123 setup_git_env();
124 return git_index_file;
127 char *get_graft_file(void)
129 if (!git_graft_file)
130 setup_git_env();
131 return git_graft_file;
134 int set_git_dir(const char *path)
136 if (setenv(GIT_DIR_ENVIRONMENT, path, 1))
137 return error("Could not set GIT_DIR to '%s'", path);
138 setup_git_env();
139 return 0;