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
12 #include "environment.h"
13 #include "repository.h"
16 #include "fmt-merge-msg.h"
19 #include "object-store.h"
20 #include "tmp-objdir.h"
21 #include "chdir-notify.h"
24 int trust_executable_bit
= 1;
28 int minimum_abbrev
= 4, default_abbrev
= -1;
31 int prefer_symlink_refs
;
32 int is_bare_repository_cfg
= -1; /* unspecified */
33 int warn_ambiguous_refs
= 1;
34 int warn_on_object_refname_ambiguity
= 1;
35 int repository_format_precious_objects
;
36 int repository_format_worktree_config
;
37 const char *git_commit_encoding
;
38 const char *git_log_output_encoding
;
39 char *apply_default_whitespace
;
40 char *apply_default_ignorewhitespace
;
41 const char *git_attributes_file
;
42 const char *git_hooks_path
;
43 int zlib_compression_level
= Z_BEST_SPEED
;
44 int pack_compression_level
= Z_DEFAULT_COMPRESSION
;
45 int fsync_object_files
;
47 size_t packed_git_window_size
= DEFAULT_PACKED_GIT_WINDOW_SIZE
;
48 size_t packed_git_limit
= DEFAULT_PACKED_GIT_LIMIT
;
49 size_t delta_base_cache_limit
= 96 * 1024 * 1024;
50 unsigned long big_file_threshold
= 512 * 1024 * 1024;
51 int pager_use_color
= 1;
52 const char *editor_program
;
53 const char *askpass_program
;
54 const char *excludes_file
;
55 enum auto_crlf auto_crlf
= AUTO_CRLF_FALSE
;
56 int read_replace_refs
= 1;
57 char *git_replace_ref_base
;
58 enum eol core_eol
= EOL_UNSET
;
59 int global_conv_flags_eol
= CONV_EOL_RNDTRP_WARN
;
60 char *check_roundtrip_encoding
= "SHIFT-JIS";
61 unsigned whitespace_rule_cfg
= WS_DEFAULT_RULE
;
62 enum branch_track git_branch_track
= BRANCH_TRACK_REMOTE
;
63 enum rebase_setup_type autorebase
= AUTOREBASE_NEVER
;
64 enum push_default_type push_default
= PUSH_DEFAULT_UNSPECIFIED
;
65 #ifndef OBJECT_CREATION_MODE
66 #define OBJECT_CREATION_MODE OBJECT_CREATION_USES_HARDLINKS
68 enum object_creation_mode object_creation_mode
= OBJECT_CREATION_MODE
;
70 int grafts_replace_parents
= 1;
71 int core_apply_sparse_checkout
;
72 int core_sparse_checkout_cone
;
73 int sparse_expect_files_outside_of_patterns
;
74 int merge_log_config
= -1;
75 int precomposed_unicode
= -1; /* see probe_utf8_pathname_composition() */
76 unsigned long pack_size_limit_cfg
;
77 enum log_refs_config log_all_ref_updates
= LOG_REFS_UNSET
;
79 #ifndef PROTECT_HFS_DEFAULT
80 #define PROTECT_HFS_DEFAULT 0
82 int protect_hfs
= PROTECT_HFS_DEFAULT
;
84 #ifndef PROTECT_NTFS_DEFAULT
85 #define PROTECT_NTFS_DEFAULT 1
87 int protect_ntfs
= PROTECT_NTFS_DEFAULT
;
88 const char *core_fsmonitor
;
91 * The character that begins a commented line in user-editable file
92 * that is subject to stripspace.
94 char comment_line_char
= '#';
95 int auto_comment_line_char
;
97 /* Parallel index stat data preload? */
98 int core_preload_index
= 1;
100 /* This is set by setup_git_dir_gently() and/or git_default_config() */
101 char *git_work_tree_cfg
;
103 static char *git_namespace
;
105 static char *super_prefix
;
108 * Repository-local GIT_* environment variables; see cache.h for details.
110 const char * const local_repo_env
[] = {
111 ALTERNATE_DB_ENVIRONMENT
,
113 CONFIG_DATA_ENVIRONMENT
,
114 CONFIG_COUNT_ENVIRONMENT
,
117 GIT_WORK_TREE_ENVIRONMENT
,
118 GIT_IMPLICIT_WORK_TREE_ENVIRONMENT
,
121 NO_REPLACE_OBJECTS_ENVIRONMENT
,
122 GIT_REPLACE_REF_BASE_ENVIRONMENT
,
123 GIT_PREFIX_ENVIRONMENT
,
124 GIT_SUPER_PREFIX_ENVIRONMENT
,
125 GIT_SHALLOW_FILE_ENVIRONMENT
,
126 GIT_COMMON_DIR_ENVIRONMENT
,
130 static char *expand_namespace(const char *raw_namespace
)
132 struct strbuf buf
= STRBUF_INIT
;
133 struct strbuf
**components
, **c
;
135 if (!raw_namespace
|| !*raw_namespace
)
138 strbuf_addstr(&buf
, raw_namespace
);
139 components
= strbuf_split(&buf
, '/');
141 for (c
= components
; *c
; c
++)
142 if (strcmp((*c
)->buf
, "/") != 0)
143 strbuf_addf(&buf
, "refs/namespaces/%s", (*c
)->buf
);
144 strbuf_list_free(components
);
145 if (check_refname_format(buf
.buf
, 0))
146 die(_("bad git namespace path \"%s\""), raw_namespace
);
147 strbuf_addch(&buf
, '/');
148 return strbuf_detach(&buf
, NULL
);
151 const char *getenv_safe(struct strvec
*argv
, const char *name
)
153 const char *value
= getenv(name
);
158 strvec_push(argv
, value
);
159 return argv
->v
[argv
->nr
- 1];
162 void setup_git_env(const char *git_dir
)
164 const char *shallow_file
;
165 const char *replace_ref_base
;
166 struct set_gitdir_args args
= { NULL
};
167 struct strvec to_free
= STRVEC_INIT
;
169 args
.commondir
= getenv_safe(&to_free
, GIT_COMMON_DIR_ENVIRONMENT
);
170 args
.object_dir
= getenv_safe(&to_free
, DB_ENVIRONMENT
);
171 args
.graft_file
= getenv_safe(&to_free
, GRAFT_ENVIRONMENT
);
172 args
.index_file
= getenv_safe(&to_free
, INDEX_ENVIRONMENT
);
173 args
.alternate_db
= getenv_safe(&to_free
, ALTERNATE_DB_ENVIRONMENT
);
174 if (getenv(GIT_QUARANTINE_ENVIRONMENT
)) {
175 args
.disable_ref_updates
= 1;
178 repo_set_gitdir(the_repository
, git_dir
, &args
);
179 strvec_clear(&to_free
);
181 if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT
))
182 read_replace_refs
= 0;
183 replace_ref_base
= getenv(GIT_REPLACE_REF_BASE_ENVIRONMENT
);
184 free(git_replace_ref_base
);
185 git_replace_ref_base
= xstrdup(replace_ref_base
? replace_ref_base
188 git_namespace
= expand_namespace(getenv(GIT_NAMESPACE_ENVIRONMENT
));
189 shallow_file
= getenv(GIT_SHALLOW_FILE_ENVIRONMENT
);
191 set_alternate_shallow_file(the_repository
, shallow_file
, 0);
194 int is_bare_repository(void)
196 /* if core.bare is not 'false', let's see if there is a work tree */
197 return is_bare_repository_cfg
&& !get_git_work_tree();
200 int have_git_dir(void)
202 return startup_info
->have_repository
203 || the_repository
->gitdir
;
206 const char *get_git_dir(void)
208 if (!the_repository
->gitdir
)
209 BUG("git environment hasn't been setup");
210 return the_repository
->gitdir
;
213 const char *get_git_common_dir(void)
215 if (!the_repository
->commondir
)
216 BUG("git environment hasn't been setup");
217 return the_repository
->commondir
;
220 const char *get_git_namespace(void)
223 BUG("git environment hasn't been setup");
224 return git_namespace
;
227 const char *strip_namespace(const char *namespaced_ref
)
230 if (skip_prefix(namespaced_ref
, get_git_namespace(), &out
))
235 const char *get_super_prefix(void)
237 static int initialized
;
239 super_prefix
= xstrdup_or_null(getenv(GIT_SUPER_PREFIX_ENVIRONMENT
));
245 static int git_work_tree_initialized
;
248 * Note. This works only before you used a work tree. This was added
249 * primarily to support git-clone to work in a new repository it just
250 * created, and is not meant to flip between different work trees.
252 void set_git_work_tree(const char *new_work_tree
)
254 if (git_work_tree_initialized
) {
255 struct strbuf realpath
= STRBUF_INIT
;
257 strbuf_realpath(&realpath
, new_work_tree
, 1);
258 new_work_tree
= realpath
.buf
;
259 if (strcmp(new_work_tree
, the_repository
->worktree
))
260 die("internal error: work tree has already been set\n"
261 "Current worktree: %s\nNew worktree: %s",
262 the_repository
->worktree
, new_work_tree
);
263 strbuf_release(&realpath
);
266 git_work_tree_initialized
= 1;
267 repo_set_worktree(the_repository
, new_work_tree
);
270 const char *get_git_work_tree(void)
272 return the_repository
->worktree
;
275 char *get_object_directory(void)
277 if (!the_repository
->objects
->odb
)
278 BUG("git environment hasn't been setup");
279 return the_repository
->objects
->odb
->path
;
282 int odb_mkstemp(struct strbuf
*temp_filename
, const char *pattern
)
286 * we let the umask do its job, don't try to be more
287 * restrictive except to remove write permission.
290 git_path_buf(temp_filename
, "objects/%s", pattern
);
291 fd
= git_mkstemp_mode(temp_filename
->buf
, mode
);
296 /* some mkstemp implementations erase temp_filename on failure */
297 git_path_buf(temp_filename
, "objects/%s", pattern
);
298 safe_create_leading_directories(temp_filename
->buf
);
299 return xmkstemp_mode(temp_filename
->buf
, mode
);
302 int odb_pack_keep(const char *name
)
306 fd
= open(name
, O_RDWR
|O_CREAT
|O_EXCL
, 0600);
311 safe_create_leading_directories_const(name
);
312 return open(name
, O_RDWR
|O_CREAT
|O_EXCL
, 0600);
315 char *get_index_file(void)
317 if (!the_repository
->index_file
)
318 BUG("git environment hasn't been setup");
319 return the_repository
->index_file
;
322 char *get_graft_file(struct repository
*r
)
325 BUG("git environment hasn't been setup");
326 return r
->graft_file
;
329 static void set_git_dir_1(const char *path
)
331 xsetenv(GIT_DIR_ENVIRONMENT
, path
, 1);
335 static void update_relative_gitdir(const char *name
,
340 char *path
= reparent_relative_path(old_cwd
, new_cwd
, get_git_dir());
341 struct tmp_objdir
*tmp_objdir
= tmp_objdir_unapply_primary_odb();
343 trace_printf_key(&trace_setup_key
,
344 "setup: move $GIT_DIR to '%s'",
348 tmp_objdir_reapply_primary_odb(tmp_objdir
, old_cwd
, new_cwd
);
352 void set_git_dir(const char *path
, int make_realpath
)
354 struct strbuf realpath
= STRBUF_INIT
;
357 strbuf_realpath(&realpath
, path
, 1);
362 if (!is_absolute_path(path
))
363 chdir_notify_register(NULL
, update_relative_gitdir
, NULL
);
365 strbuf_release(&realpath
);
368 const char *get_log_output_encoding(void)
370 return git_log_output_encoding
? git_log_output_encoding
371 : get_commit_output_encoding();
374 const char *get_commit_output_encoding(void)
376 return git_commit_encoding
? git_commit_encoding
: "UTF-8";
379 static int the_shared_repository
= PERM_UMASK
;
380 static int need_shared_repository_from_config
= 1;
382 void set_shared_repository(int value
)
384 the_shared_repository
= value
;
385 need_shared_repository_from_config
= 0;
388 int get_shared_repository(void)
390 if (need_shared_repository_from_config
) {
391 const char *var
= "core.sharedrepository";
393 if (!git_config_get_value(var
, &value
))
394 the_shared_repository
= git_config_perm(var
, value
);
395 need_shared_repository_from_config
= 0;
397 return the_shared_repository
;
400 void reset_shared_repository(void)
402 need_shared_repository_from_config
= 1;
405 int use_optional_locks(void)
407 return git_env_bool(GIT_OPTIONAL_LOCKS_ENVIRONMENT
, 1);
410 int print_sha1_ellipsis(void)
413 * Determine if the calling environment contains the variable
414 * GIT_PRINT_SHA1_ELLIPSIS set to "yes".
416 static int cached_result
= -1; /* unknown */
418 if (cached_result
< 0) {
419 const char *v
= getenv("GIT_PRINT_SHA1_ELLIPSIS");
420 cached_result
= (v
&& !strcasecmp(v
, "yes"));
422 return cached_result
;