test-config: setup git directory
[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"
a1bea2c1 11#include "refs.h"
273c7032 12#include "fmt-merge-msg.h"
069c0532 13#include "commit.h"
e1b10391 14
e1b10391 15int trust_executable_bit = 1;
1ce4790b 16int trust_ctime = 1;
c08e4d5b 17int check_stat = 1;
78a8d641 18int has_symlinks = 1;
dce96489 19int minimum_abbrev = 4, default_abbrev = 7;
0a9b88b7 20int ignore_case;
96f1e58f
DR
21int assume_unchanged;
22int prefer_symlink_refs;
7d1864ce 23int is_bare_repository_cfg = -1; /* unspecified */
510c5a8e 24int log_all_ref_updates = -1; /* unspecified */
1b371f56 25int warn_ambiguous_refs = 1;
25fba78d 26int warn_on_object_refname_ambiguity = 1;
49672f26 27int ref_paranoia = -1;
067fbd41 28int repository_format_precious_objects;
1a8f2741 29const char *git_commit_encoding;
3a55602e 30const char *git_log_output_encoding;
96f1e58f 31const char *apply_default_whitespace;
86c91f91 32const char *apply_default_ignorewhitespace;
64589a03 33const char *git_attributes_file;
960ccca6
DH
34int zlib_compression_level = Z_BEST_SPEED;
35int core_compression_level;
36int core_compression_seen;
aafe9fba 37int fsync_object_files;
8c82534d
SP
38size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE;
39size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT;
4874f544 40size_t delta_base_cache_limit = 96 * 1024 * 1024;
15366280 41unsigned long big_file_threshold = 512 * 1024 * 1024;
aa086eb8 42int pager_use_color = 1;
ee9601e6 43const char *editor_program;
d3e7da89 44const char *askpass_program;
dfb068be 45const char *excludes_file;
fd6cce9e 46enum auto_crlf auto_crlf = AUTO_CRLF_FALSE;
afc711b8 47int check_replace_refs = 1;
58d121b2 48char *git_replace_ref_base;
ec70f52f 49enum eol core_eol = EOL_UNSET;
21e5ad50 50enum safe_crlf safe_crlf = SAFE_CRLF_WARN;
cf1b7869 51unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
9ed36cfa 52enum branch_track git_branch_track = BRANCH_TRACK_REMOTE;
c998ae9b 53enum rebase_setup_type autorebase = AUTOREBASE_NEVER;
f25950f3 54enum push_default_type push_default = PUSH_DEFAULT_UNSPECIFIED;
348df166
JS
55#ifndef OBJECT_CREATION_MODE
56#define OBJECT_CREATION_MODE OBJECT_CREATION_USES_HARDLINKS
be66a6c4 57#endif
348df166 58enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE;
a97a7468 59char *notes_ref_name;
7f3140cd 60int grafts_replace_parents = 1;
08aefc9e 61int core_apply_sparse_checkout;
898eacd8 62int merge_log_config = -1;
76759c7d 63int precomposed_unicode = -1; /* see probe_utf8_pathname_composition() */
568508e7 64unsigned long pack_size_limit_cfg;
f30afdab 65enum hide_dotfiles_type hide_dotfiles = HIDE_DOTFILES_DOTGITONLY;
e1b10391 66
a42643aa
JK
67#ifndef PROTECT_HFS_DEFAULT
68#define PROTECT_HFS_DEFAULT 0
69#endif
70int protect_hfs = PROTECT_HFS_DEFAULT;
71
2b4c6efc
JS
72#ifndef PROTECT_NTFS_DEFAULT
73#define PROTECT_NTFS_DEFAULT 0
74#endif
75int protect_ntfs = PROTECT_NTFS_DEFAULT;
76
eff80a9f
JH
77/*
78 * The character that begins a commented line in user-editable file
79 * that is subject to stripspace.
80 */
81char comment_line_char = '#';
84c9dc2c 82int auto_comment_line_char;
eff80a9f 83
671c9b7e 84/* Parallel index stat data preload? */
299e2987 85int core_preload_index = 1;
671c9b7e 86
dae6c322
CC
87/*
88 * This is a hack for test programs like test-dump-untracked-cache to
89 * ensure that they do not modify the untracked cache when reading it.
90 * Do not use it otherwise!
91 */
92int ignore_untracked_cache_config;
93
e90fdc39
JS
94/* This is set by setup_git_dir_gently() and/or git_default_config() */
95char *git_work_tree_cfg;
19757d80 96static char *work_tree;
e90fdc39 97
a1bea2c1
JT
98static const char *namespace;
99static size_t namespace_len;
100
c7b3a3d2 101static const char *git_dir, *git_common_dir;
7f7868ea 102static char *git_object_dir, *git_index_file, *git_graft_file;
c7b3a3d2 103int git_db_env, git_index_env, git_graft_env, git_common_dir_env;
c5fba16c 104
48a7c1c4 105/*
2163e5db 106 * Repository-local GIT_* environment variables; see cache.h for details.
48a7c1c4 107 */
2163e5db 108const char * const local_repo_env[] = {
48a7c1c4
GB
109 ALTERNATE_DB_ENVIRONMENT,
110 CONFIG_ENVIRONMENT,
655e8d9c 111 CONFIG_DATA_ENVIRONMENT,
48a7c1c4
GB
112 DB_ENVIRONMENT,
113 GIT_DIR_ENVIRONMENT,
114 GIT_WORK_TREE_ENVIRONMENT,
2cd83d10 115 GIT_IMPLICIT_WORK_TREE_ENVIRONMENT,
48a7c1c4
GB
116 GRAFT_ENVIRONMENT,
117 INDEX_ENVIRONMENT,
118 NO_REPLACE_OBJECTS_ENVIRONMENT,
58d121b2 119 GIT_REPLACE_REF_BASE_ENVIRONMENT,
a6f7f9a3 120 GIT_PREFIX_ENVIRONMENT,
069c0532 121 GIT_SHALLOW_FILE_ENVIRONMENT,
c7b3a3d2 122 GIT_COMMON_DIR_ENVIRONMENT,
48a7c1c4
GB
123 NULL
124};
125
a1bea2c1
JT
126static char *expand_namespace(const char *raw_namespace)
127{
128 struct strbuf buf = STRBUF_INIT;
129 struct strbuf **components, **c;
130
131 if (!raw_namespace || !*raw_namespace)
132 return xstrdup("");
133
134 strbuf_addstr(&buf, raw_namespace);
135 components = strbuf_split(&buf, '/');
136 strbuf_reset(&buf);
137 for (c = components; *c; c++)
138 if (strcmp((*c)->buf, "/") != 0)
139 strbuf_addf(&buf, "refs/namespaces/%s", (*c)->buf);
140 strbuf_list_free(components);
8d9c5010 141 if (check_refname_format(buf.buf, 0))
a1bea2c1
JT
142 die("bad git namespace path \"%s\"", raw_namespace);
143 strbuf_addch(&buf, '/');
144 return strbuf_detach(&buf, NULL);
145}
146
c7b3a3d2
NTND
147static char *git_path_from_env(const char *envvar, const char *git_dir,
148 const char *path, int *fromenv)
cb6c38d5
JK
149{
150 const char *value = getenv(envvar);
75faa45a
JK
151 if (!value)
152 return xstrfmt("%s/%s", git_dir, path);
557bd833
NTND
153 if (fromenv)
154 *fromenv = 1;
155 return xstrdup(value);
cb6c38d5
JK
156}
157
e1b10391
LT
158static void setup_git_env(void)
159{
31e26ebc 160 struct strbuf sb = STRBUF_INIT;
487a2b73 161 const char *gitfile;
069c0532 162 const char *shallow_file;
58d121b2 163 const char *replace_ref_base;
487a2b73 164
e1b10391
LT
165 git_dir = getenv(GIT_DIR_ENVIRONMENT);
166 if (!git_dir)
167 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
487a2b73
NTND
168 gitfile = read_gitfile(git_dir);
169 git_dir = xstrdup(gitfile ? gitfile : git_dir);
31e26ebc 170 if (get_common_dir(&sb, git_dir))
c7b3a3d2 171 git_common_dir_env = 1;
31e26ebc 172 git_common_dir = strbuf_detach(&sb, NULL);
c7b3a3d2
NTND
173 git_object_dir = git_path_from_env(DB_ENVIRONMENT, git_common_dir,
174 "objects", &git_db_env);
175 git_index_file = git_path_from_env(INDEX_ENVIRONMENT, git_dir,
176 "index", &git_index_env);
177 git_graft_file = git_path_from_env(GRAFT_ENVIRONMENT, git_common_dir,
178 "info/grafts", &git_graft_env);
6476b38b 179 if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT))
afc711b8 180 check_replace_refs = 0;
58d121b2
MH
181 replace_ref_base = getenv(GIT_REPLACE_REF_BASE_ENVIRONMENT);
182 git_replace_ref_base = xstrdup(replace_ref_base ? replace_ref_base
183 : "refs/replace/");
a1bea2c1
JT
184 namespace = expand_namespace(getenv(GIT_NAMESPACE_ENVIRONMENT));
185 namespace_len = strlen(namespace);
069c0532
NTND
186 shallow_file = getenv(GIT_SHALLOW_FILE_ENVIRONMENT);
187 if (shallow_file)
188 set_alternate_shallow_file(shallow_file, 0);
0bee5918
SP
189}
190
7d1864ce 191int is_bare_repository(void)
0bee5918 192{
e90fdc39
JS
193 /* if core.bare is not 'false', let's see if there is a work tree */
194 return is_bare_repository_cfg && !get_git_work_tree();
e1b10391
LT
195}
196
c5fba16c 197const char *get_git_dir(void)
e1b10391
LT
198{
199 if (!git_dir)
200 setup_git_env();
201 return git_dir;
202}
203
c7b3a3d2
NTND
204const char *get_git_common_dir(void)
205{
206 return git_common_dir;
207}
208
a1bea2c1
JT
209const char *get_git_namespace(void)
210{
211 if (!namespace)
212 setup_git_env();
213 return namespace;
214}
215
216const char *strip_namespace(const char *namespaced_ref)
217{
59556548 218 if (!starts_with(namespaced_ref, get_git_namespace()))
a1bea2c1
JT
219 return NULL;
220 return namespaced_ref + namespace_len;
221}
222
19757d80
DB
223static int git_work_tree_initialized;
224
225/*
226 * Note. This works only before you used a work tree. This was added
227 * primarily to support git-clone to work in a new repository it just
228 * created, and is not meant to flip between different work trees.
229 */
230void set_git_work_tree(const char *new_work_tree)
231{
83518360 232 if (git_work_tree_initialized) {
e2a57aac 233 new_work_tree = real_path(new_work_tree);
83518360
NTND
234 if (strcmp(new_work_tree, work_tree))
235 die("internal error: work tree has already been set\n"
236 "Current worktree: %s\nNew worktree: %s",
237 work_tree, new_work_tree);
238 return;
239 }
19757d80 240 git_work_tree_initialized = 1;
e2a57aac 241 work_tree = xstrdup(real_path(new_work_tree));
19757d80
DB
242}
243
e90fdc39
JS
244const char *get_git_work_tree(void)
245{
e90fdc39
JS
246 return work_tree;
247}
248
e1b10391
LT
249char *get_object_directory(void)
250{
251 if (!git_object_dir)
252 setup_git_env();
253 return git_object_dir;
254}
255
463db9b1
JN
256int odb_mkstemp(char *template, size_t limit, const char *pattern)
257{
258 int fd;
259 /*
260 * we let the umask do its job, don't try to be more
261 * restrictive except to remove write permission.
262 */
263 int mode = 0444;
264 snprintf(template, limit, "%s/%s",
265 get_object_directory(), pattern);
266 fd = git_mkstemp_mode(template, mode);
267 if (0 <= fd)
268 return fd;
269
270 /* slow path */
271 /* some mkstemp implementations erase template on failure */
272 snprintf(template, limit, "%s/%s",
273 get_object_directory(), pattern);
274 safe_create_leading_directories(template);
275 return xmkstemp_mode(template, mode);
276}
277
8640d496 278int odb_pack_keep(char *name, size_t namesz, const unsigned char *sha1)
463db9b1
JN
279{
280 int fd;
281
282 snprintf(name, namesz, "%s/pack/pack-%s.keep",
283 get_object_directory(), sha1_to_hex(sha1));
284 fd = open(name, O_RDWR|O_CREAT|O_EXCL, 0600);
285 if (0 <= fd)
286 return fd;
287
288 /* slow path */
289 safe_create_leading_directories(name);
290 return open(name, O_RDWR|O_CREAT|O_EXCL, 0600);
291}
292
e1b10391
LT
293char *get_index_file(void)
294{
295 if (!git_index_file)
296 setup_git_env();
297 return git_index_file;
298}
299
300char *get_graft_file(void)
301{
302 if (!git_graft_file)
303 setup_git_env();
304 return git_graft_file;
305}
d7ac12b2
JS
306
307int set_git_dir(const char *path)
308{
309 if (setenv(GIT_DIR_ENVIRONMENT, path, 1))
310 return error("Could not set GIT_DIR to '%s'", path);
311 setup_git_env();
312 return 0;
313}
a6fa5992
PN
314
315const char *get_log_output_encoding(void)
316{
317 return git_log_output_encoding ? git_log_output_encoding
318 : get_commit_output_encoding();
319}
320
321const char *get_commit_output_encoding(void)
322{
323 return git_commit_encoding ? git_commit_encoding : "UTF-8";
324}
7875acb6
JK
325
326static int the_shared_repository = PERM_UMASK;
ae5f6776 327static int need_shared_repository_from_config = 1;
7875acb6
JK
328
329void set_shared_repository(int value)
330{
331 the_shared_repository = value;
ae5f6776 332 need_shared_repository_from_config = 0;
7875acb6
JK
333}
334
335int get_shared_repository(void)
336{
ae5f6776
JK
337 if (need_shared_repository_from_config) {
338 const char *var = "core.sharedrepository";
339 const char *value;
340 if (!git_config_get_value(var, &value))
341 the_shared_repository = git_config_perm(var, value);
342 need_shared_repository_from_config = 0;
343 }
7875acb6
JK
344 return the_shared_repository;
345}