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
11 #include "repository.h"
14 #include "fmt-merge-msg.h"
16 #include "argv-array.h"
18 int trust_executable_bit = 1;
22 int minimum_abbrev = 4, default_abbrev = -1;
25 int prefer_symlink_refs;
26 int is_bare_repository_cfg = -1; /* unspecified */
27 int warn_ambiguous_refs = 1;
28 int warn_on_object_refname_ambiguity = 1;
29 int ref_paranoia = -1;
30 int repository_format_precious_objects;
31 char *repository_format_partial_clone;
32 const char *core_partial_clone_filter_default;
33 const char *git_commit_encoding;
34 const char *git_log_output_encoding;
35 const char *apply_default_whitespace;
36 const char *apply_default_ignorewhitespace;
37 const char *git_attributes_file;
38 const char *git_hooks_path;
39 int zlib_compression_level = Z_BEST_SPEED;
40 int core_compression_level;
41 int pack_compression_level = Z_DEFAULT_COMPRESSION;
42 int fsync_object_files;
43 size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE;
44 size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT;
45 size_t delta_base_cache_limit = 96 * 1024 * 1024;
46 unsigned long big_file_threshold = 512 * 1024 * 1024;
47 int pager_use_color = 1;
48 const char *editor_program;
49 const char *askpass_program;
50 const char *excludes_file;
51 enum auto_crlf auto_crlf = AUTO_CRLF_FALSE;
52 int check_replace_refs = 1;
53 char *git_replace_ref_base;
54 enum eol core_eol = EOL_UNSET;
55 int global_conv_flags_eol = CONV_EOL_RNDTRP_WARN;
56 unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
57 enum branch_track git_branch_track = BRANCH_TRACK_REMOTE;
58 enum rebase_setup_type autorebase = AUTOREBASE_NEVER;
59 enum push_default_type push_default = PUSH_DEFAULT_UNSPECIFIED;
60 #ifndef OBJECT_CREATION_MODE
61 #define OBJECT_CREATION_MODE OBJECT_CREATION_USES_HARDLINKS
63 enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE;
65 int grafts_replace_parents = 1;
66 int core_apply_sparse_checkout;
67 int merge_log_config = -1;
68 int precomposed_unicode = -1; /* see probe_utf8_pathname_composition() */
69 unsigned long pack_size_limit_cfg;
70 enum hide_dotfiles_type hide_dotfiles = HIDE_DOTFILES_DOTGITONLY;
71 enum log_refs_config log_all_ref_updates = LOG_REFS_UNSET;
73 #ifndef PROTECT_HFS_DEFAULT
74 #define PROTECT_HFS_DEFAULT 0
76 int protect_hfs = PROTECT_HFS_DEFAULT;
78 #ifndef PROTECT_NTFS_DEFAULT
79 #define PROTECT_NTFS_DEFAULT 0
81 int protect_ntfs = PROTECT_NTFS_DEFAULT;
82 const char *core_fsmonitor;
85 * The character that begins a commented line in user-editable file
86 * that is subject to stripspace.
88 char comment_line_char = '#';
89 int auto_comment_line_char;
91 /* Parallel index stat data preload? */
92 int core_preload_index = 1;
95 * This is a hack for test programs like test-dump-untracked-cache to
96 * ensure that they do not modify the untracked cache when reading it.
97 * Do not use it otherwise!
99 int ignore_untracked_cache_config;
101 /* This is set by setup_git_dir_gently() and/or git_default_config() */
102 char *git_work_tree_cfg;
104 static char *namespace;
106 static const char *super_prefix;
109 * Repository-local GIT_* environment variables; see cache.h for details.
111 const char * const local_repo_env[] = {
112 ALTERNATE_DB_ENVIRONMENT,
114 CONFIG_DATA_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);
152 * Wrapper of getenv() that returns a strdup value. This value is kept
153 * in argv to be freed later.
155 static const char *getenv_safe(struct argv_array *argv, const char *name)
157 const char *value = getenv(name);
162 argv_array_push(argv, value);
163 return argv->argv[argv->argc - 1];
166 void setup_git_env(const char *git_dir)
168 const char *shallow_file;
169 const char *replace_ref_base;
170 struct set_gitdir_args args = { NULL };
171 struct argv_array to_free = ARGV_ARRAY_INIT;
173 args.commondir = getenv_safe(&to_free, GIT_COMMON_DIR_ENVIRONMENT);
174 args.object_dir = getenv_safe(&to_free, DB_ENVIRONMENT);
175 args.graft_file = getenv_safe(&to_free, GRAFT_ENVIRONMENT);
176 args.index_file = getenv_safe(&to_free, INDEX_ENVIRONMENT);
177 repo_set_gitdir(the_repository, git_dir, &args);
178 argv_array_clear(&to_free);
180 if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT))
181 check_replace_refs = 0;
182 replace_ref_base = getenv(GIT_REPLACE_REF_BASE_ENVIRONMENT);
183 free(git_replace_ref_base);
184 git_replace_ref_base = xstrdup(replace_ref_base ? replace_ref_base
187 namespace = expand_namespace(getenv(GIT_NAMESPACE_ENVIRONMENT));
188 shallow_file = getenv(GIT_SHALLOW_FILE_ENVIRONMENT);
190 set_alternate_shallow_file(shallow_file, 0);
193 int is_bare_repository(void)
195 /* if core.bare is not 'false', let's see if there is a work tree */
196 return is_bare_repository_cfg && !get_git_work_tree();
199 int have_git_dir(void)
201 return startup_info->have_repository
202 || the_repository->gitdir;
205 const char *get_git_dir(void)
207 if (!the_repository->gitdir)
208 BUG("git environment hasn't been setup");
209 return the_repository->gitdir;
212 const char *get_git_common_dir(void)
214 if (!the_repository->commondir)
215 BUG("git environment hasn't been setup");
216 return the_repository->commondir;
219 const char *get_git_namespace(void)
222 BUG("git environment hasn't been setup");
226 const char *strip_namespace(const char *namespaced_ref)
229 if (skip_prefix(namespaced_ref, get_git_namespace(), &out))
234 const char *get_super_prefix(void)
236 static int initialized;
238 super_prefix = getenv(GIT_SUPER_PREFIX_ENVIRONMENT);
244 static int git_work_tree_initialized;
247 * Note. This works only before you used a work tree. This was added
248 * primarily to support git-clone to work in a new repository it just
249 * created, and is not meant to flip between different work trees.
251 void set_git_work_tree(const char *new_work_tree)
253 if (git_work_tree_initialized) {
254 new_work_tree = real_path(new_work_tree);
255 if (strcmp(new_work_tree, the_repository->worktree))
256 die("internal error: work tree has already been set\n"
257 "Current worktree: %s\nNew worktree: %s",
258 the_repository->worktree, new_work_tree);
261 git_work_tree_initialized = 1;
262 repo_set_worktree(the_repository, new_work_tree);
265 const char *get_git_work_tree(void)
267 return the_repository->worktree;
270 char *get_object_directory(void)
272 if (!the_repository->objectdir)
273 BUG("git environment hasn't been setup");
274 return the_repository->objectdir;
277 int odb_mkstemp(struct strbuf *template, const char *pattern)
281 * we let the umask do its job, don't try to be more
282 * restrictive except to remove write permission.
285 git_path_buf(template, "objects/%s", pattern);
286 fd = git_mkstemp_mode(template->buf, mode);
291 /* some mkstemp implementations erase template on failure */
292 git_path_buf(template, "objects/%s", pattern);
293 safe_create_leading_directories(template->buf);
294 return xmkstemp_mode(template->buf, mode);
297 int odb_pack_keep(const char *name)
301 fd = open(name, O_RDWR|O_CREAT|O_EXCL, 0600);
306 safe_create_leading_directories_const(name);
307 return open(name, O_RDWR|O_CREAT|O_EXCL, 0600);
310 char *get_index_file(void)
312 if (!the_repository->index_file)
313 BUG("git environment hasn't been setup");
314 return the_repository->index_file;
317 char *get_graft_file(void)
319 if (!the_repository->graft_file)
320 BUG("git environment hasn't been setup");
321 return the_repository->graft_file;
324 int set_git_dir(const char *path)
326 if (setenv(GIT_DIR_ENVIRONMENT, path, 1))
327 return error("Could not set GIT_DIR to '%s'", path);
332 const char *get_log_output_encoding(void)
334 return git_log_output_encoding ? git_log_output_encoding
335 : get_commit_output_encoding();
338 const char *get_commit_output_encoding(void)
340 return git_commit_encoding ? git_commit_encoding : "UTF-8";
343 static int the_shared_repository = PERM_UMASK;
344 static int need_shared_repository_from_config = 1;
346 void set_shared_repository(int value)
348 the_shared_repository = value;
349 need_shared_repository_from_config = 0;
352 int get_shared_repository(void)
354 if (need_shared_repository_from_config) {
355 const char *var = "core.sharedrepository";
357 if (!git_config_get_value(var, &value))
358 the_shared_repository = git_config_perm(var, value);
359 need_shared_repository_from_config = 0;
361 return the_shared_repository;
364 void reset_shared_repository(void)
366 need_shared_repository_from_config = 1;
369 int use_optional_locks(void)
371 return git_env_bool(GIT_OPTIONAL_LOCKS_ENVIRONMENT, 1);
374 int print_sha1_ellipsis(void)
377 * Determine if the calling environment contains the variable
378 * GIT_PRINT_SHA1_ELLIPSIS set to "yes".
380 static int cached_result = -1; /* unknown */
382 if (cached_result < 0) {
383 const char *v = getenv("GIT_PRINT_SHA1_ELLIPSIS");
384 cached_result = (v && !strcasecmp(v, "yes"));
386 return cached_result;