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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" | |
11 | #include "repository.h" | |
12 | #include "config.h" | |
13 | #include "refs.h" | |
14 | #include "fmt-merge-msg.h" | |
15 | #include "commit.h" | |
16 | ||
17 | int trust_executable_bit = 1; | |
18 | int trust_ctime = 1; | |
19 | int check_stat = 1; | |
20 | int has_symlinks = 1; | |
21 | int minimum_abbrev = 4, default_abbrev = -1; | |
22 | int ignore_case; | |
23 | int assume_unchanged; | |
24 | int prefer_symlink_refs; | |
25 | int is_bare_repository_cfg = -1; /* unspecified */ | |
26 | int warn_ambiguous_refs = 1; | |
27 | int warn_on_object_refname_ambiguity = 1; | |
28 | int ref_paranoia = -1; | |
29 | int repository_format_precious_objects; | |
30 | char *repository_format_partial_clone; | |
31 | const char *core_partial_clone_filter_default; | |
32 | const char *git_commit_encoding; | |
33 | const char *git_log_output_encoding; | |
34 | const char *apply_default_whitespace; | |
35 | const char *apply_default_ignorewhitespace; | |
36 | const char *git_attributes_file; | |
37 | const char *git_hooks_path; | |
38 | int zlib_compression_level = Z_BEST_SPEED; | |
39 | int core_compression_level; | |
40 | int pack_compression_level = Z_DEFAULT_COMPRESSION; | |
41 | int fsync_object_files; | |
42 | size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE; | |
43 | size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT; | |
44 | size_t delta_base_cache_limit = 96 * 1024 * 1024; | |
45 | unsigned long big_file_threshold = 512 * 1024 * 1024; | |
46 | int pager_use_color = 1; | |
47 | const char *editor_program; | |
48 | const char *askpass_program; | |
49 | const char *excludes_file; | |
50 | enum auto_crlf auto_crlf = AUTO_CRLF_FALSE; | |
51 | int check_replace_refs = 1; | |
52 | char *git_replace_ref_base; | |
53 | enum eol core_eol = EOL_UNSET; | |
54 | int global_conv_flags_eol = CONV_EOL_RNDTRP_WARN; | |
55 | unsigned whitespace_rule_cfg = WS_DEFAULT_RULE; | |
56 | enum branch_track git_branch_track = BRANCH_TRACK_REMOTE; | |
57 | enum rebase_setup_type autorebase = AUTOREBASE_NEVER; | |
58 | enum push_default_type push_default = PUSH_DEFAULT_UNSPECIFIED; | |
59 | #ifndef OBJECT_CREATION_MODE | |
60 | #define OBJECT_CREATION_MODE OBJECT_CREATION_USES_HARDLINKS | |
61 | #endif | |
62 | enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE; | |
63 | char *notes_ref_name; | |
64 | int grafts_replace_parents = 1; | |
65 | int core_apply_sparse_checkout; | |
66 | int merge_log_config = -1; | |
67 | int precomposed_unicode = -1; /* see probe_utf8_pathname_composition() */ | |
68 | unsigned long pack_size_limit_cfg; | |
69 | enum hide_dotfiles_type hide_dotfiles = HIDE_DOTFILES_DOTGITONLY; | |
70 | enum log_refs_config log_all_ref_updates = LOG_REFS_UNSET; | |
71 | ||
72 | #ifndef PROTECT_HFS_DEFAULT | |
73 | #define PROTECT_HFS_DEFAULT 0 | |
74 | #endif | |
75 | int protect_hfs = PROTECT_HFS_DEFAULT; | |
76 | ||
77 | #ifndef PROTECT_NTFS_DEFAULT | |
78 | #define PROTECT_NTFS_DEFAULT 0 | |
79 | #endif | |
80 | int protect_ntfs = PROTECT_NTFS_DEFAULT; | |
81 | const char *core_fsmonitor; | |
82 | ||
83 | /* | |
84 | * The character that begins a commented line in user-editable file | |
85 | * that is subject to stripspace. | |
86 | */ | |
87 | char comment_line_char = '#'; | |
88 | int auto_comment_line_char; | |
89 | ||
90 | /* Parallel index stat data preload? */ | |
91 | int core_preload_index = 1; | |
92 | ||
93 | /* | |
94 | * This is a hack for test programs like test-dump-untracked-cache to | |
95 | * ensure that they do not modify the untracked cache when reading it. | |
96 | * Do not use it otherwise! | |
97 | */ | |
98 | int ignore_untracked_cache_config; | |
99 | ||
100 | /* This is set by setup_git_dir_gently() and/or git_default_config() */ | |
101 | char *git_work_tree_cfg; | |
102 | ||
103 | static char *git_namespace; | |
104 | ||
105 | static const char *super_prefix; | |
106 | ||
107 | /* | |
108 | * Repository-local GIT_* environment variables; see cache.h for details. | |
109 | */ | |
110 | const char * const local_repo_env[] = { | |
111 | ALTERNATE_DB_ENVIRONMENT, | |
112 | CONFIG_ENVIRONMENT, | |
113 | CONFIG_DATA_ENVIRONMENT, | |
114 | DB_ENVIRONMENT, | |
115 | GIT_DIR_ENVIRONMENT, | |
116 | GIT_WORK_TREE_ENVIRONMENT, | |
117 | GIT_IMPLICIT_WORK_TREE_ENVIRONMENT, | |
118 | GRAFT_ENVIRONMENT, | |
119 | INDEX_ENVIRONMENT, | |
120 | NO_REPLACE_OBJECTS_ENVIRONMENT, | |
121 | GIT_REPLACE_REF_BASE_ENVIRONMENT, | |
122 | GIT_PREFIX_ENVIRONMENT, | |
123 | GIT_SUPER_PREFIX_ENVIRONMENT, | |
124 | GIT_SHALLOW_FILE_ENVIRONMENT, | |
125 | GIT_COMMON_DIR_ENVIRONMENT, | |
126 | NULL | |
127 | }; | |
128 | ||
129 | static char *expand_namespace(const char *raw_namespace) | |
130 | { | |
131 | struct strbuf buf = STRBUF_INIT; | |
132 | struct strbuf **components, **c; | |
133 | ||
134 | if (!raw_namespace || !*raw_namespace) | |
135 | return xstrdup(""); | |
136 | ||
137 | strbuf_addstr(&buf, raw_namespace); | |
138 | components = strbuf_split(&buf, '/'); | |
139 | strbuf_reset(&buf); | |
140 | for (c = components; *c; c++) | |
141 | if (strcmp((*c)->buf, "/") != 0) | |
142 | strbuf_addf(&buf, "refs/namespaces/%s", (*c)->buf); | |
143 | strbuf_list_free(components); | |
144 | if (check_refname_format(buf.buf, 0)) | |
145 | die("bad git namespace path \"%s\"", raw_namespace); | |
146 | strbuf_addch(&buf, '/'); | |
147 | return strbuf_detach(&buf, NULL); | |
148 | } | |
149 | ||
150 | void setup_git_env(void) | |
151 | { | |
152 | const char *shallow_file; | |
153 | const char *replace_ref_base; | |
154 | ||
155 | if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT)) | |
156 | check_replace_refs = 0; | |
157 | replace_ref_base = getenv(GIT_REPLACE_REF_BASE_ENVIRONMENT); | |
158 | free(git_replace_ref_base); | |
159 | git_replace_ref_base = xstrdup(replace_ref_base ? replace_ref_base | |
160 | : "refs/replace/"); | |
161 | free(git_namespace); | |
162 | git_namespace = expand_namespace(getenv(GIT_NAMESPACE_ENVIRONMENT)); | |
163 | shallow_file = getenv(GIT_SHALLOW_FILE_ENVIRONMENT); | |
164 | if (shallow_file) | |
165 | set_alternate_shallow_file(shallow_file, 0); | |
166 | } | |
167 | ||
168 | int is_bare_repository(void) | |
169 | { | |
170 | /* if core.bare is not 'false', let's see if there is a work tree */ | |
171 | return is_bare_repository_cfg && !get_git_work_tree(); | |
172 | } | |
173 | ||
174 | int have_git_dir(void) | |
175 | { | |
176 | return startup_info->have_repository | |
177 | || the_repository->gitdir; | |
178 | } | |
179 | ||
180 | const char *get_git_dir(void) | |
181 | { | |
182 | if (!the_repository->gitdir) | |
183 | BUG("git environment hasn't been setup"); | |
184 | return the_repository->gitdir; | |
185 | } | |
186 | ||
187 | const char *get_git_common_dir(void) | |
188 | { | |
189 | if (!the_repository->commondir) | |
190 | BUG("git environment hasn't been setup"); | |
191 | return the_repository->commondir; | |
192 | } | |
193 | ||
194 | const char *get_git_namespace(void) | |
195 | { | |
196 | if (!git_namespace) | |
197 | BUG("git environment hasn't been setup"); | |
198 | return git_namespace; | |
199 | } | |
200 | ||
201 | const char *strip_namespace(const char *namespaced_ref) | |
202 | { | |
203 | const char *out; | |
204 | if (skip_prefix(namespaced_ref, get_git_namespace(), &out)) | |
205 | return out; | |
206 | return NULL; | |
207 | } | |
208 | ||
209 | const char *get_super_prefix(void) | |
210 | { | |
211 | static int initialized; | |
212 | if (!initialized) { | |
213 | super_prefix = getenv(GIT_SUPER_PREFIX_ENVIRONMENT); | |
214 | initialized = 1; | |
215 | } | |
216 | return super_prefix; | |
217 | } | |
218 | ||
219 | static int git_work_tree_initialized; | |
220 | ||
221 | /* | |
222 | * Note. This works only before you used a work tree. This was added | |
223 | * primarily to support git-clone to work in a new repository it just | |
224 | * created, and is not meant to flip between different work trees. | |
225 | */ | |
226 | void set_git_work_tree(const char *new_work_tree) | |
227 | { | |
228 | if (git_work_tree_initialized) { | |
229 | new_work_tree = real_path(new_work_tree); | |
230 | if (strcmp(new_work_tree, the_repository->worktree)) | |
231 | die("internal error: work tree has already been set\n" | |
232 | "Current worktree: %s\nNew worktree: %s", | |
233 | the_repository->worktree, new_work_tree); | |
234 | return; | |
235 | } | |
236 | git_work_tree_initialized = 1; | |
237 | repo_set_worktree(the_repository, new_work_tree); | |
238 | } | |
239 | ||
240 | const char *get_git_work_tree(void) | |
241 | { | |
242 | return the_repository->worktree; | |
243 | } | |
244 | ||
245 | char *get_object_directory(void) | |
246 | { | |
247 | if (!the_repository->objectdir) | |
248 | BUG("git environment hasn't been setup"); | |
249 | return the_repository->objectdir; | |
250 | } | |
251 | ||
252 | int odb_mkstemp(struct strbuf *temp_filename, const char *pattern) | |
253 | { | |
254 | int fd; | |
255 | /* | |
256 | * we let the umask do its job, don't try to be more | |
257 | * restrictive except to remove write permission. | |
258 | */ | |
259 | int mode = 0444; | |
260 | git_path_buf(temp_filename, "objects/%s", pattern); | |
261 | fd = git_mkstemp_mode(temp_filename->buf, mode); | |
262 | if (0 <= fd) | |
263 | return fd; | |
264 | ||
265 | /* slow path */ | |
266 | /* some mkstemp implementations erase temp_filename on failure */ | |
267 | git_path_buf(temp_filename, "objects/%s", pattern); | |
268 | safe_create_leading_directories(temp_filename->buf); | |
269 | return xmkstemp_mode(temp_filename->buf, mode); | |
270 | } | |
271 | ||
272 | int odb_pack_keep(const char *name) | |
273 | { | |
274 | int fd; | |
275 | ||
276 | fd = open(name, O_RDWR|O_CREAT|O_EXCL, 0600); | |
277 | if (0 <= fd) | |
278 | return fd; | |
279 | ||
280 | /* slow path */ | |
281 | safe_create_leading_directories_const(name); | |
282 | return open(name, O_RDWR|O_CREAT|O_EXCL, 0600); | |
283 | } | |
284 | ||
285 | char *get_index_file(void) | |
286 | { | |
287 | if (!the_repository->index_file) | |
288 | BUG("git environment hasn't been setup"); | |
289 | return the_repository->index_file; | |
290 | } | |
291 | ||
292 | char *get_graft_file(void) | |
293 | { | |
294 | if (!the_repository->graft_file) | |
295 | BUG("git environment hasn't been setup"); | |
296 | return the_repository->graft_file; | |
297 | } | |
298 | ||
299 | int set_git_dir(const char *path) | |
300 | { | |
301 | if (setenv(GIT_DIR_ENVIRONMENT, path, 1)) | |
302 | return error("Could not set GIT_DIR to '%s'", path); | |
303 | repo_set_gitdir(the_repository, path); | |
304 | setup_git_env(); | |
305 | return 0; | |
306 | } | |
307 | ||
308 | const char *get_log_output_encoding(void) | |
309 | { | |
310 | return git_log_output_encoding ? git_log_output_encoding | |
311 | : get_commit_output_encoding(); | |
312 | } | |
313 | ||
314 | const char *get_commit_output_encoding(void) | |
315 | { | |
316 | return git_commit_encoding ? git_commit_encoding : "UTF-8"; | |
317 | } | |
318 | ||
319 | static int the_shared_repository = PERM_UMASK; | |
320 | static int need_shared_repository_from_config = 1; | |
321 | ||
322 | void set_shared_repository(int value) | |
323 | { | |
324 | the_shared_repository = value; | |
325 | need_shared_repository_from_config = 0; | |
326 | } | |
327 | ||
328 | int get_shared_repository(void) | |
329 | { | |
330 | if (need_shared_repository_from_config) { | |
331 | const char *var = "core.sharedrepository"; | |
332 | const char *value; | |
333 | if (!git_config_get_value(var, &value)) | |
334 | the_shared_repository = git_config_perm(var, value); | |
335 | need_shared_repository_from_config = 0; | |
336 | } | |
337 | return the_shared_repository; | |
338 | } | |
339 | ||
340 | void reset_shared_repository(void) | |
341 | { | |
342 | need_shared_repository_from_config = 1; | |
343 | } | |
344 | ||
345 | int use_optional_locks(void) | |
346 | { | |
347 | return git_env_bool(GIT_OPTIONAL_LOCKS_ENVIRONMENT, 1); | |
348 | } | |
349 | ||
350 | int print_sha1_ellipsis(void) | |
351 | { | |
352 | /* | |
353 | * Determine if the calling environment contains the variable | |
354 | * GIT_PRINT_SHA1_ELLIPSIS set to "yes". | |
355 | */ | |
356 | static int cached_result = -1; /* unknown */ | |
357 | ||
358 | if (cached_result < 0) { | |
359 | const char *v = getenv("GIT_PRINT_SHA1_ELLIPSIS"); | |
360 | cached_result = (v && !strcasecmp(v, "yes")); | |
361 | } | |
362 | return cached_result; | |
363 | } |