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 "repository.h"
15 #include "fmt-merge-msg.h"
17 #include "argv-array.h"
18 #include "object-store.h"
19 #include "chdir-notify.h"
21 int trust_executable_bit = 1;
25 int minimum_abbrev = 4, default_abbrev = -1;
28 int prefer_symlink_refs;
29 int is_bare_repository_cfg = -1; /* unspecified */
30 int warn_ambiguous_refs = 1;
31 int warn_on_object_refname_ambiguity = 1;
32 int ref_paranoia = -1;
33 int repository_format_precious_objects;
34 int repository_format_worktree_config;
35 const char *git_commit_encoding;
36 const char *git_log_output_encoding;
37 const char *apply_default_whitespace;
38 const char *apply_default_ignorewhitespace;
39 const char *git_attributes_file;
40 const char *git_hooks_path;
41 int zlib_compression_level = Z_BEST_SPEED;
42 int core_compression_level;
43 int pack_compression_level = Z_DEFAULT_COMPRESSION;
44 int fsync_object_files;
45 size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE;
46 size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT;
47 size_t delta_base_cache_limit = 96 * 1024 * 1024;
48 unsigned long big_file_threshold = 512 * 1024 * 1024;
49 int pager_use_color = 1;
50 const char *editor_program;
51 const char *askpass_program;
52 const char *excludes_file;
53 enum auto_crlf auto_crlf = AUTO_CRLF_FALSE;
54 int read_replace_refs = 1;
55 char *git_replace_ref_base;
56 enum eol core_eol = EOL_UNSET;
57 int global_conv_flags_eol = CONV_EOL_RNDTRP_WARN;
58 char *check_roundtrip_encoding = "SHIFT-JIS";
59 unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
60 enum branch_track git_branch_track = BRANCH_TRACK_REMOTE;
61 enum rebase_setup_type autorebase = AUTOREBASE_NEVER;
62 enum push_default_type push_default = PUSH_DEFAULT_UNSPECIFIED;
63 #ifndef OBJECT_CREATION_MODE
64 #define OBJECT_CREATION_MODE OBJECT_CREATION_USES_HARDLINKS
66 enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE;
68 int grafts_replace_parents = 1;
69 int core_apply_sparse_checkout;
70 int core_sparse_checkout_cone;
71 int merge_log_config = -1;
72 int precomposed_unicode = -1; /* see probe_utf8_pathname_composition() */
73 unsigned long pack_size_limit_cfg;
74 enum log_refs_config log_all_ref_updates = LOG_REFS_UNSET;
76 #ifndef PROTECT_HFS_DEFAULT
77 #define PROTECT_HFS_DEFAULT 0
79 int protect_hfs = PROTECT_HFS_DEFAULT;
81 #ifndef PROTECT_NTFS_DEFAULT
82 #define PROTECT_NTFS_DEFAULT 1
84 int protect_ntfs = PROTECT_NTFS_DEFAULT;
85 const char *core_fsmonitor;
88 * The character that begins a commented line in user-editable file
89 * that is subject to stripspace.
91 char comment_line_char = '#';
92 int auto_comment_line_char;
94 /* Parallel index stat data preload? */
95 int core_preload_index = 1;
98 * This is a hack for test programs like test-dump-untracked-cache to
99 * ensure that they do not modify the untracked cache when reading it.
100 * Do not use it otherwise!
102 int ignore_untracked_cache_config;
104 /* This is set by setup_git_dir_gently() and/or git_default_config() */
105 char *git_work_tree_cfg;
107 static char *git_namespace;
109 static char *super_prefix;
112 * Repository-local GIT_* environment variables; see cache.h for details.
114 const char * const local_repo_env[] = {
115 ALTERNATE_DB_ENVIRONMENT,
117 CONFIG_DATA_ENVIRONMENT,
120 GIT_WORK_TREE_ENVIRONMENT,
121 GIT_IMPLICIT_WORK_TREE_ENVIRONMENT,
124 NO_REPLACE_OBJECTS_ENVIRONMENT,
125 GIT_REPLACE_REF_BASE_ENVIRONMENT,
126 GIT_PREFIX_ENVIRONMENT,
127 GIT_SUPER_PREFIX_ENVIRONMENT,
128 GIT_SHALLOW_FILE_ENVIRONMENT,
129 GIT_COMMON_DIR_ENVIRONMENT,
133 static char *expand_namespace(const char *raw_namespace)
135 struct strbuf buf = STRBUF_INIT;
136 struct strbuf **components, **c;
138 if (!raw_namespace || !*raw_namespace)
141 strbuf_addstr(&buf, raw_namespace);
142 components = strbuf_split(&buf, '/');
144 for (c = components; *c; c++)
145 if (strcmp((*c)->buf, "/") != 0)
146 strbuf_addf(&buf, "refs/namespaces/%s", (*c)->buf);
147 strbuf_list_free(components);
148 if (check_refname_format(buf.buf, 0))
149 die(_("bad git namespace path \"%s\""), raw_namespace);
150 strbuf_addch(&buf, '/');
151 return strbuf_detach(&buf, NULL);
155 * Wrapper of getenv() that returns a strdup value. This value is kept
156 * in argv to be freed later.
158 static const char *getenv_safe(struct argv_array *argv, const char *name)
160 const char *value = getenv(name);
165 argv_array_push(argv, value);
166 return argv->argv[argv->argc - 1];
169 void setup_git_env(const char *git_dir)
171 const char *shallow_file;
172 const char *replace_ref_base;
173 struct set_gitdir_args args = { NULL };
174 struct argv_array to_free = ARGV_ARRAY_INIT;
176 args.commondir = getenv_safe(&to_free, GIT_COMMON_DIR_ENVIRONMENT);
177 args.object_dir = getenv_safe(&to_free, DB_ENVIRONMENT);
178 args.graft_file = getenv_safe(&to_free, GRAFT_ENVIRONMENT);
179 args.index_file = getenv_safe(&to_free, INDEX_ENVIRONMENT);
180 args.alternate_db = getenv_safe(&to_free, ALTERNATE_DB_ENVIRONMENT);
181 repo_set_gitdir(the_repository, git_dir, &args);
182 argv_array_clear(&to_free);
184 if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT))
185 read_replace_refs = 0;
186 replace_ref_base = getenv(GIT_REPLACE_REF_BASE_ENVIRONMENT);
187 free(git_replace_ref_base);
188 git_replace_ref_base = xstrdup(replace_ref_base ? replace_ref_base
191 git_namespace = expand_namespace(getenv(GIT_NAMESPACE_ENVIRONMENT));
192 shallow_file = getenv(GIT_SHALLOW_FILE_ENVIRONMENT);
194 set_alternate_shallow_file(the_repository, shallow_file, 0);
197 int is_bare_repository(void)
199 /* if core.bare is not 'false', let's see if there is a work tree */
200 return is_bare_repository_cfg && !get_git_work_tree();
203 int have_git_dir(void)
205 return startup_info->have_repository
206 || the_repository->gitdir;
209 const char *get_git_dir(void)
211 if (!the_repository->gitdir)
212 BUG("git environment hasn't been setup");
213 return the_repository->gitdir;
216 const char *get_git_common_dir(void)
218 if (!the_repository->commondir)
219 BUG("git environment hasn't been setup");
220 return the_repository->commondir;
223 const char *get_git_namespace(void)
226 BUG("git environment hasn't been setup");
227 return git_namespace;
230 const char *strip_namespace(const char *namespaced_ref)
233 if (skip_prefix(namespaced_ref, get_git_namespace(), &out))
238 const char *get_super_prefix(void)
240 static int initialized;
242 super_prefix = xstrdup_or_null(getenv(GIT_SUPER_PREFIX_ENVIRONMENT));
248 static int git_work_tree_initialized;
251 * Note. This works only before you used a work tree. This was added
252 * primarily to support git-clone to work in a new repository it just
253 * created, and is not meant to flip between different work trees.
255 void set_git_work_tree(const char *new_work_tree)
257 struct strbuf realpath = STRBUF_INIT;
259 if (git_work_tree_initialized) {
260 strbuf_realpath(&realpath, new_work_tree, 1);
261 new_work_tree = realpath.buf;
262 if (strcmp(new_work_tree, the_repository->worktree))
263 die("internal error: work tree has already been set\n"
264 "Current worktree: %s\nNew worktree: %s",
265 the_repository->worktree, new_work_tree);
268 git_work_tree_initialized = 1;
269 repo_set_worktree(the_repository, new_work_tree);
271 strbuf_release(&realpath);
274 const char *get_git_work_tree(void)
276 return the_repository->worktree;
279 char *get_object_directory(void)
281 if (!the_repository->objects->odb)
282 BUG("git environment hasn't been setup");
283 return the_repository->objects->odb->path;
286 int odb_mkstemp(struct strbuf *temp_filename, const char *pattern)
290 * we let the umask do its job, don't try to be more
291 * restrictive except to remove write permission.
294 git_path_buf(temp_filename, "objects/%s", pattern);
295 fd = git_mkstemp_mode(temp_filename->buf, mode);
300 /* some mkstemp implementations erase temp_filename on failure */
301 git_path_buf(temp_filename, "objects/%s", pattern);
302 safe_create_leading_directories(temp_filename->buf);
303 return xmkstemp_mode(temp_filename->buf, mode);
306 int odb_pack_keep(const char *name)
310 fd = open(name, O_RDWR|O_CREAT|O_EXCL, 0600);
315 safe_create_leading_directories_const(name);
316 return open(name, O_RDWR|O_CREAT|O_EXCL, 0600);
319 char *get_index_file(void)
321 if (!the_repository->index_file)
322 BUG("git environment hasn't been setup");
323 return the_repository->index_file;
326 char *get_graft_file(struct repository *r)
329 BUG("git environment hasn't been setup");
330 return r->graft_file;
333 static void set_git_dir_1(const char *path)
335 if (setenv(GIT_DIR_ENVIRONMENT, path, 1))
336 die(_("could not set GIT_DIR to '%s'"), path);
340 static void update_relative_gitdir(const char *name,
345 char *path = reparent_relative_path(old_cwd, new_cwd, get_git_dir());
346 trace_printf_key(&trace_setup_key,
347 "setup: move $GIT_DIR to '%s'",
353 void set_git_dir(const char *path, int make_realpath)
355 struct strbuf realpath = STRBUF_INIT;
358 strbuf_realpath(&realpath, path, 1);
363 if (!is_absolute_path(path))
364 chdir_notify_register(NULL, update_relative_gitdir, NULL);
366 strbuf_release(&realpath);
369 const char *get_log_output_encoding(void)
371 return git_log_output_encoding ? git_log_output_encoding
372 : get_commit_output_encoding();
375 const char *get_commit_output_encoding(void)
377 return git_commit_encoding ? git_commit_encoding : "UTF-8";
380 static int the_shared_repository = PERM_UMASK;
381 static int need_shared_repository_from_config = 1;
383 void set_shared_repository(int value)
385 the_shared_repository = value;
386 need_shared_repository_from_config = 0;
389 int get_shared_repository(void)
391 if (need_shared_repository_from_config) {
392 const char *var = "core.sharedrepository";
394 if (!git_config_get_value(var, &value))
395 the_shared_repository = git_config_perm(var, value);
396 need_shared_repository_from_config = 0;
398 return the_shared_repository;
401 void reset_shared_repository(void)
403 need_shared_repository_from_config = 1;
406 int use_optional_locks(void)
408 return git_env_bool(GIT_OPTIONAL_LOCKS_ENVIRONMENT, 1);
411 int print_sha1_ellipsis(void)
414 * Determine if the calling environment contains the variable
415 * GIT_PRINT_SHA1_ELLIPSIS set to "yes".
417 static int cached_result = -1; /* unknown */
419 if (cached_result < 0) {
420 const char *v = getenv("GIT_PRINT_SHA1_ELLIPSIS");
421 cached_result = (v && !strcasecmp(v, "yes"));
423 return cached_result;