t/t1411: test reflog with formats
[git/dscho.git] / environment.c
blobc3efbb96084de04465f7eff45376cadc3ab2526b
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 user_ident_explicitly_given;
15 int trust_executable_bit = 1;
16 int trust_ctime = 1;
17 int has_symlinks = 1;
18 int ignore_case;
19 int assume_unchanged;
20 int prefer_symlink_refs;
21 int is_bare_repository_cfg = -1; /* unspecified */
22 int log_all_ref_updates = -1; /* unspecified */
23 int warn_ambiguous_refs = 1;
24 int repository_format_version;
25 const char *git_commit_encoding;
26 const char *git_log_output_encoding;
27 int shared_repository = PERM_UMASK;
28 const char *apply_default_whitespace;
29 const char *apply_default_ignorewhitespace;
30 int zlib_compression_level = Z_BEST_SPEED;
31 int core_compression_level;
32 int core_compression_seen;
33 int fsync_object_files;
34 size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE;
35 size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT;
36 size_t delta_base_cache_limit = 16 * 1024 * 1024;
37 const char *pager_program;
38 int pager_use_color = 1;
39 const char *editor_program;
40 const char *askpass_program;
41 const char *excludes_file;
42 enum auto_crlf auto_crlf = AUTO_CRLF_FALSE;
43 int read_replace_refs = 1;
44 enum eol eol = EOL_UNSET;
45 enum safe_crlf safe_crlf = SAFE_CRLF_WARN;
46 unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
47 enum branch_track git_branch_track = BRANCH_TRACK_REMOTE;
48 enum rebase_setup_type autorebase = AUTOREBASE_NEVER;
49 enum push_default_type push_default = PUSH_DEFAULT_MATCHING;
50 #ifndef OBJECT_CREATION_MODE
51 #define OBJECT_CREATION_MODE OBJECT_CREATION_USES_HARDLINKS
52 #endif
53 enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE;
54 char *notes_ref_name;
55 int grafts_replace_parents = 1;
56 int core_apply_sparse_checkout;
57 struct startup_info *startup_info;
59 /* Parallel index stat data preload? */
60 int core_preload_index = 0;
62 /* This is set by setup_git_dir_gently() and/or git_default_config() */
63 char *git_work_tree_cfg;
64 static char *work_tree;
66 static const char *git_dir;
67 static char *git_object_dir, *git_index_file, *git_graft_file;
70 * Repository-local GIT_* environment variables
71 * Remember to update local_repo_env_size in cache.h when
72 * the size of the list changes
74 const char * const local_repo_env[LOCAL_REPO_ENV_SIZE + 1] = {
75 ALTERNATE_DB_ENVIRONMENT,
76 CONFIG_ENVIRONMENT,
77 CONFIG_DATA_ENVIRONMENT,
78 DB_ENVIRONMENT,
79 GIT_DIR_ENVIRONMENT,
80 GIT_WORK_TREE_ENVIRONMENT,
81 GRAFT_ENVIRONMENT,
82 INDEX_ENVIRONMENT,
83 NO_REPLACE_OBJECTS_ENVIRONMENT,
84 NULL
87 static void setup_git_env(void)
89 git_dir = getenv(GIT_DIR_ENVIRONMENT);
90 git_dir = git_dir ? xstrdup(git_dir) : NULL;
91 if (!git_dir) {
92 git_dir = read_gitfile_gently(DEFAULT_GIT_DIR_ENVIRONMENT);
93 git_dir = git_dir ? xstrdup(git_dir) : NULL;
95 if (!git_dir)
96 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
97 git_object_dir = getenv(DB_ENVIRONMENT);
98 if (!git_object_dir) {
99 git_object_dir = xmalloc(strlen(git_dir) + 9);
100 sprintf(git_object_dir, "%s/objects", git_dir);
102 git_index_file = getenv(INDEX_ENVIRONMENT);
103 if (!git_index_file) {
104 git_index_file = xmalloc(strlen(git_dir) + 7);
105 sprintf(git_index_file, "%s/index", git_dir);
107 git_graft_file = getenv(GRAFT_ENVIRONMENT);
108 if (!git_graft_file)
109 git_graft_file = git_pathdup("info/grafts");
110 if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT))
111 read_replace_refs = 0;
114 int is_bare_repository(void)
116 /* if core.bare is not 'false', let's see if there is a work tree */
117 return is_bare_repository_cfg && !get_git_work_tree();
120 int have_git_dir(void)
122 return !!git_dir;
125 const char *get_git_dir(void)
127 if (!git_dir)
128 setup_git_env();
129 return git_dir;
132 static int git_work_tree_initialized;
135 * Note. This works only before you used a work tree. This was added
136 * primarily to support git-clone to work in a new repository it just
137 * created, and is not meant to flip between different work trees.
139 void set_git_work_tree(const char *new_work_tree)
141 if (git_work_tree_initialized) {
142 new_work_tree = make_absolute_path(new_work_tree);
143 if (strcmp(new_work_tree, work_tree))
144 die("internal error: work tree has already been set\n"
145 "Current worktree: %s\nNew worktree: %s",
146 work_tree, new_work_tree);
147 return;
149 git_work_tree_initialized = 1;
150 work_tree = xstrdup(make_absolute_path(new_work_tree));
153 const char *get_git_work_tree(void)
155 return work_tree;
158 char *get_object_directory(void)
160 if (!git_object_dir)
161 setup_git_env();
162 return git_object_dir;
165 int odb_mkstemp(char *template, size_t limit, const char *pattern)
167 int fd;
169 * we let the umask do its job, don't try to be more
170 * restrictive except to remove write permission.
172 int mode = 0444;
173 snprintf(template, limit, "%s/%s",
174 get_object_directory(), pattern);
175 fd = git_mkstemp_mode(template, mode);
176 if (0 <= fd)
177 return fd;
179 /* slow path */
180 /* some mkstemp implementations erase template on failure */
181 snprintf(template, limit, "%s/%s",
182 get_object_directory(), pattern);
183 safe_create_leading_directories(template);
184 return xmkstemp_mode(template, mode);
187 int odb_pack_keep(char *name, size_t namesz, unsigned char *sha1)
189 int fd;
191 snprintf(name, namesz, "%s/pack/pack-%s.keep",
192 get_object_directory(), sha1_to_hex(sha1));
193 fd = open(name, O_RDWR|O_CREAT|O_EXCL, 0600);
194 if (0 <= fd)
195 return fd;
197 /* slow path */
198 safe_create_leading_directories(name);
199 return open(name, O_RDWR|O_CREAT|O_EXCL, 0600);
202 char *get_index_file(void)
204 if (!git_index_file)
205 setup_git_env();
206 return git_index_file;
209 char *get_graft_file(void)
211 if (!git_graft_file)
212 setup_git_env();
213 return git_graft_file;
216 int set_git_dir(const char *path)
218 if (setenv(GIT_DIR_ENVIRONMENT, path, 1))
219 return error("Could not set GIT_DIR to '%s'", path);
220 setup_git_env();
221 return 0;
224 const char *get_log_output_encoding(void)
226 return git_log_output_encoding ? git_log_output_encoding
227 : get_commit_output_encoding();
230 const char *get_commit_output_encoding(void)
232 return git_commit_encoding ? git_commit_encoding : "UTF-8";