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Commit | Line | Data |
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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" | |
0b027f6c | 11 | #include "abspath.h" |
e730b81d | 12 | #include "branch.h" |
b9d147fb | 13 | #include "environment.h" |
f394e093 | 14 | #include "gettext.h" |
c14c234f | 15 | #include "repository.h" |
b2141fc1 | 16 | #include "config.h" |
a1bea2c1 | 17 | #include "refs.h" |
273c7032 | 18 | #include "fmt-merge-msg.h" |
069c0532 | 19 | #include "commit.h" |
dbbcd44f | 20 | #include "strvec.h" |
90c62155 | 21 | #include "object-store.h" |
cbeab747 | 22 | #include "replace-object.h" |
b3cecf49 | 23 | #include "tmp-objdir.h" |
8500e0de | 24 | #include "chdir-notify.h" |
e38da487 | 25 | #include "setup.h" |
120ad2b0 | 26 | #include "shallow.h" |
74ea5c95 | 27 | #include "trace.h" |
d5ebb50d | 28 | #include "wrapper.h" |
d48be35c | 29 | #include "write-or-die.h" |
e1b10391 | 30 | |
e1b10391 | 31 | int trust_executable_bit = 1; |
1ce4790b | 32 | int trust_ctime = 1; |
c08e4d5b | 33 | int check_stat = 1; |
78a8d641 | 34 | int has_symlinks = 1; |
e6c587c7 | 35 | int minimum_abbrev = 4, default_abbrev = -1; |
0a9b88b7 | 36 | int ignore_case; |
96f1e58f DR |
37 | int assume_unchanged; |
38 | int prefer_symlink_refs; | |
7d1864ce | 39 | int is_bare_repository_cfg = -1; /* unspecified */ |
1b371f56 | 40 | int warn_ambiguous_refs = 1; |
25fba78d | 41 | int warn_on_object_refname_ambiguity = 1; |
067fbd41 | 42 | int repository_format_precious_objects; |
58b284a2 | 43 | int repository_format_worktree_config; |
1a8f2741 | 44 | const char *git_commit_encoding; |
3a55602e | 45 | const char *git_log_output_encoding; |
9a53219f JK |
46 | char *apply_default_whitespace; |
47 | char *apply_default_ignorewhitespace; | |
64589a03 | 48 | const char *git_attributes_file; |
867ad08a | 49 | const char *git_hooks_path; |
960ccca6 | 50 | int zlib_compression_level = Z_BEST_SPEED; |
8de7eeb5 | 51 | int pack_compression_level = Z_DEFAULT_COMPRESSION; |
844a8ad4 | 52 | int fsync_object_files = -1; |
412e4cae | 53 | int use_fsync = -1; |
abf38abe | 54 | enum fsync_method fsync_method = FSYNC_METHOD_DEFAULT; |
020406ea | 55 | enum fsync_component fsync_components = FSYNC_COMPONENTS_DEFAULT; |
8c82534d SP |
56 | size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE; |
57 | size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT; | |
4874f544 | 58 | size_t delta_base_cache_limit = 96 * 1024 * 1024; |
15366280 | 59 | unsigned long big_file_threshold = 512 * 1024 * 1024; |
aa086eb8 | 60 | int pager_use_color = 1; |
ee9601e6 | 61 | const char *editor_program; |
d3e7da89 | 62 | const char *askpass_program; |
dfb068be | 63 | const char *excludes_file; |
fd6cce9e | 64 | enum auto_crlf auto_crlf = AUTO_CRLF_FALSE; |
6ebd1caf | 65 | int read_replace_refs = 1; |
ec70f52f | 66 | enum eol core_eol = EOL_UNSET; |
8462ff43 | 67 | int global_conv_flags_eol = CONV_EOL_RNDTRP_WARN; |
e92d6225 | 68 | char *check_roundtrip_encoding = "SHIFT-JIS"; |
cf1b7869 | 69 | unsigned whitespace_rule_cfg = WS_DEFAULT_RULE; |
9ed36cfa | 70 | enum branch_track git_branch_track = BRANCH_TRACK_REMOTE; |
c998ae9b | 71 | enum rebase_setup_type autorebase = AUTOREBASE_NEVER; |
f25950f3 | 72 | enum push_default_type push_default = PUSH_DEFAULT_UNSPECIFIED; |
348df166 JS |
73 | #ifndef OBJECT_CREATION_MODE |
74 | #define OBJECT_CREATION_MODE OBJECT_CREATION_USES_HARDLINKS | |
be66a6c4 | 75 | #endif |
348df166 | 76 | enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE; |
a97a7468 | 77 | char *notes_ref_name; |
7f3140cd | 78 | int grafts_replace_parents = 1; |
08aefc9e | 79 | int core_apply_sparse_checkout; |
879321eb | 80 | int core_sparse_checkout_cone; |
ecc7c884 | 81 | int sparse_expect_files_outside_of_patterns; |
898eacd8 | 82 | int merge_log_config = -1; |
76759c7d | 83 | int precomposed_unicode = -1; /* see probe_utf8_pathname_composition() */ |
568508e7 | 84 | unsigned long pack_size_limit_cfg; |
341fb286 | 85 | enum log_refs_config log_all_ref_updates = LOG_REFS_UNSET; |
e1b10391 | 86 | |
a42643aa JK |
87 | #ifndef PROTECT_HFS_DEFAULT |
88 | #define PROTECT_HFS_DEFAULT 0 | |
89 | #endif | |
90 | int protect_hfs = PROTECT_HFS_DEFAULT; | |
91 | ||
2b4c6efc | 92 | #ifndef PROTECT_NTFS_DEFAULT |
9102f958 | 93 | #define PROTECT_NTFS_DEFAULT 1 |
2b4c6efc JS |
94 | #endif |
95 | int protect_ntfs = PROTECT_NTFS_DEFAULT; | |
96 | ||
eff80a9f JH |
97 | /* |
98 | * The character that begins a commented line in user-editable file | |
99 | * that is subject to stripspace. | |
100 | */ | |
101 | char comment_line_char = '#'; | |
84c9dc2c | 102 | int auto_comment_line_char; |
eff80a9f | 103 | |
671c9b7e | 104 | /* Parallel index stat data preload? */ |
299e2987 | 105 | int core_preload_index = 1; |
671c9b7e | 106 | |
e90fdc39 JS |
107 | /* This is set by setup_git_dir_gently() and/or git_default_config() */ |
108 | char *git_work_tree_cfg; | |
e90fdc39 | 109 | |
38f3f094 | 110 | static char *git_namespace; |
a1bea2c1 | 111 | |
48a7c1c4 | 112 | /* |
2163e5db | 113 | * Repository-local GIT_* environment variables; see cache.h for details. |
48a7c1c4 | 114 | */ |
2163e5db | 115 | const char * const local_repo_env[] = { |
48a7c1c4 GB |
116 | ALTERNATE_DB_ENVIRONMENT, |
117 | CONFIG_ENVIRONMENT, | |
655e8d9c | 118 | CONFIG_DATA_ENVIRONMENT, |
d8d77153 | 119 | CONFIG_COUNT_ENVIRONMENT, |
48a7c1c4 GB |
120 | DB_ENVIRONMENT, |
121 | GIT_DIR_ENVIRONMENT, | |
122 | GIT_WORK_TREE_ENVIRONMENT, | |
2cd83d10 | 123 | GIT_IMPLICIT_WORK_TREE_ENVIRONMENT, |
48a7c1c4 GB |
124 | GRAFT_ENVIRONMENT, |
125 | INDEX_ENVIRONMENT, | |
126 | NO_REPLACE_OBJECTS_ENVIRONMENT, | |
58d121b2 | 127 | GIT_REPLACE_REF_BASE_ENVIRONMENT, |
a6f7f9a3 | 128 | GIT_PREFIX_ENVIRONMENT, |
069c0532 | 129 | GIT_SHALLOW_FILE_ENVIRONMENT, |
c7b3a3d2 | 130 | GIT_COMMON_DIR_ENVIRONMENT, |
48a7c1c4 GB |
131 | NULL |
132 | }; | |
133 | ||
a1bea2c1 JT |
134 | static char *expand_namespace(const char *raw_namespace) |
135 | { | |
136 | struct strbuf buf = STRBUF_INIT; | |
137 | struct strbuf **components, **c; | |
138 | ||
139 | if (!raw_namespace || !*raw_namespace) | |
140 | return xstrdup(""); | |
141 | ||
142 | strbuf_addstr(&buf, raw_namespace); | |
143 | components = strbuf_split(&buf, '/'); | |
144 | strbuf_reset(&buf); | |
145 | for (c = components; *c; c++) | |
146 | if (strcmp((*c)->buf, "/") != 0) | |
147 | strbuf_addf(&buf, "refs/namespaces/%s", (*c)->buf); | |
148 | strbuf_list_free(components); | |
8d9c5010 | 149 | if (check_refname_format(buf.buf, 0)) |
cbb46ca7 | 150 | die(_("bad git namespace path \"%s\""), raw_namespace); |
a1bea2c1 JT |
151 | strbuf_addch(&buf, '/'); |
152 | return strbuf_detach(&buf, NULL); | |
153 | } | |
154 | ||
b9d147fb | 155 | const char *getenv_safe(struct strvec *argv, const char *name) |
357a03eb NTND |
156 | { |
157 | const char *value = getenv(name); | |
158 | ||
159 | if (!value) | |
160 | return NULL; | |
161 | ||
ef8d7ac4 | 162 | strvec_push(argv, value); |
d70a9eb6 | 163 | return argv->v[argv->nr - 1]; |
357a03eb NTND |
164 | } |
165 | ||
166 | void setup_git_env(const char *git_dir) | |
e1b10391 | 167 | { |
97e61e0f | 168 | char *git_replace_ref_base; |
069c0532 | 169 | const char *shallow_file; |
58d121b2 | 170 | const char *replace_ref_base; |
357a03eb | 171 | struct set_gitdir_args args = { NULL }; |
ef8d7ac4 | 172 | struct strvec to_free = STRVEC_INIT; |
357a03eb NTND |
173 | |
174 | args.commondir = getenv_safe(&to_free, GIT_COMMON_DIR_ENVIRONMENT); | |
175 | args.object_dir = getenv_safe(&to_free, DB_ENVIRONMENT); | |
176 | args.graft_file = getenv_safe(&to_free, GRAFT_ENVIRONMENT); | |
177 | args.index_file = getenv_safe(&to_free, INDEX_ENVIRONMENT); | |
7bc0dcaa | 178 | args.alternate_db = getenv_safe(&to_free, ALTERNATE_DB_ENVIRONMENT); |
ecd81dfc NS |
179 | if (getenv(GIT_QUARANTINE_ENVIRONMENT)) { |
180 | args.disable_ref_updates = 1; | |
181 | } | |
182 | ||
357a03eb | 183 | repo_set_gitdir(the_repository, git_dir, &args); |
ef8d7ac4 | 184 | strvec_clear(&to_free); |
487a2b73 | 185 | |
6476b38b | 186 | if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT)) |
6ebd1caf | 187 | read_replace_refs = 0; |
58d121b2 MH |
188 | replace_ref_base = getenv(GIT_REPLACE_REF_BASE_ENVIRONMENT); |
189 | git_replace_ref_base = xstrdup(replace_ref_base ? replace_ref_base | |
190 | : "refs/replace/"); | |
b9342b3f DS |
191 | update_ref_namespace(NAMESPACE_REPLACE, git_replace_ref_base); |
192 | ||
38f3f094 BW |
193 | free(git_namespace); |
194 | git_namespace = expand_namespace(getenv(GIT_NAMESPACE_ENVIRONMENT)); | |
069c0532 NTND |
195 | shallow_file = getenv(GIT_SHALLOW_FILE_ENVIRONMENT); |
196 | if (shallow_file) | |
6a2df51c | 197 | set_alternate_shallow_file(the_repository, shallow_file, 0); |
0bee5918 SP |
198 | } |
199 | ||
7d1864ce | 200 | int is_bare_repository(void) |
0bee5918 | 201 | { |
e90fdc39 JS |
202 | /* if core.bare is not 'false', let's see if there is a work tree */ |
203 | return is_bare_repository_cfg && !get_git_work_tree(); | |
e1b10391 LT |
204 | } |
205 | ||
b9605bc4 JK |
206 | int have_git_dir(void) |
207 | { | |
208 | return startup_info->have_repository | |
c14c234f | 209 | || the_repository->gitdir; |
b9605bc4 JK |
210 | } |
211 | ||
c5fba16c | 212 | const char *get_git_dir(void) |
e1b10391 | 213 | { |
c14c234f | 214 | if (!the_repository->gitdir) |
73f192c9 | 215 | BUG("git environment hasn't been setup"); |
c14c234f | 216 | return the_repository->gitdir; |
e1b10391 LT |
217 | } |
218 | ||
c7b3a3d2 NTND |
219 | const char *get_git_common_dir(void) |
220 | { | |
c14c234f | 221 | if (!the_repository->commondir) |
73f192c9 | 222 | BUG("git environment hasn't been setup"); |
c14c234f | 223 | return the_repository->commondir; |
c7b3a3d2 NTND |
224 | } |
225 | ||
a1bea2c1 JT |
226 | const char *get_git_namespace(void) |
227 | { | |
38f3f094 | 228 | if (!git_namespace) |
73f192c9 | 229 | BUG("git environment hasn't been setup"); |
38f3f094 | 230 | return git_namespace; |
a1bea2c1 JT |
231 | } |
232 | ||
233 | const char *strip_namespace(const char *namespaced_ref) | |
234 | { | |
bf08c8cf BW |
235 | const char *out; |
236 | if (skip_prefix(namespaced_ref, get_git_namespace(), &out)) | |
237 | return out; | |
238 | return NULL; | |
a1bea2c1 JT |
239 | } |
240 | ||
19757d80 DB |
241 | static int git_work_tree_initialized; |
242 | ||
243 | /* | |
244 | * Note. This works only before you used a work tree. This was added | |
245 | * primarily to support git-clone to work in a new repository it just | |
246 | * created, and is not meant to flip between different work trees. | |
247 | */ | |
248 | void set_git_work_tree(const char *new_work_tree) | |
249 | { | |
83518360 | 250 | if (git_work_tree_initialized) { |
14c3dd81 AH |
251 | struct strbuf realpath = STRBUF_INIT; |
252 | ||
3d7747e3 AM |
253 | strbuf_realpath(&realpath, new_work_tree, 1); |
254 | new_work_tree = realpath.buf; | |
b4158732 | 255 | if (strcmp(new_work_tree, the_repository->worktree)) |
83518360 NTND |
256 | die("internal error: work tree has already been set\n" |
257 | "Current worktree: %s\nNew worktree: %s", | |
b4158732 | 258 | the_repository->worktree, new_work_tree); |
14c3dd81 | 259 | strbuf_release(&realpath); |
83518360 NTND |
260 | return; |
261 | } | |
19757d80 | 262 | git_work_tree_initialized = 1; |
b4158732 | 263 | repo_set_worktree(the_repository, new_work_tree); |
19757d80 DB |
264 | } |
265 | ||
e90fdc39 JS |
266 | const char *get_git_work_tree(void) |
267 | { | |
b4158732 | 268 | return the_repository->worktree; |
e90fdc39 JS |
269 | } |
270 | ||
11f9e8de | 271 | const char *get_object_directory(void) |
e1b10391 | 272 | { |
f0eaf638 | 273 | if (!the_repository->objects->odb) |
73f192c9 | 274 | BUG("git environment hasn't been setup"); |
f0eaf638 | 275 | return the_repository->objects->odb->path; |
e1b10391 LT |
276 | } |
277 | ||
a63b5fca | 278 | int odb_mkstemp(struct strbuf *temp_filename, const char *pattern) |
463db9b1 JN |
279 | { |
280 | int fd; | |
281 | /* | |
282 | * we let the umask do its job, don't try to be more | |
283 | * restrictive except to remove write permission. | |
284 | */ | |
285 | int mode = 0444; | |
a63b5fca BW |
286 | git_path_buf(temp_filename, "objects/%s", pattern); |
287 | fd = git_mkstemp_mode(temp_filename->buf, mode); | |
463db9b1 JN |
288 | if (0 <= fd) |
289 | return fd; | |
290 | ||
291 | /* slow path */ | |
a63b5fca BW |
292 | /* some mkstemp implementations erase temp_filename on failure */ |
293 | git_path_buf(temp_filename, "objects/%s", pattern); | |
294 | safe_create_leading_directories(temp_filename->buf); | |
295 | return xmkstemp_mode(temp_filename->buf, mode); | |
463db9b1 JN |
296 | } |
297 | ||
eaeefc32 | 298 | int odb_pack_keep(const char *name) |
463db9b1 JN |
299 | { |
300 | int fd; | |
301 | ||
463db9b1 JN |
302 | fd = open(name, O_RDWR|O_CREAT|O_EXCL, 0600); |
303 | if (0 <= fd) | |
304 | return fd; | |
305 | ||
306 | /* slow path */ | |
eaeefc32 | 307 | safe_create_leading_directories_const(name); |
463db9b1 JN |
308 | return open(name, O_RDWR|O_CREAT|O_EXCL, 0600); |
309 | } | |
310 | ||
e1b10391 LT |
311 | char *get_index_file(void) |
312 | { | |
c14c234f | 313 | if (!the_repository->index_file) |
73f192c9 | 314 | BUG("git environment hasn't been setup"); |
c14c234f | 315 | return the_repository->index_file; |
e1b10391 LT |
316 | } |
317 | ||
0437a2e3 | 318 | char *get_graft_file(struct repository *r) |
e1b10391 | 319 | { |
0437a2e3 | 320 | if (!r->graft_file) |
73f192c9 | 321 | BUG("git environment hasn't been setup"); |
0437a2e3 | 322 | return r->graft_file; |
e1b10391 | 323 | } |
d7ac12b2 | 324 | |
8500e0de | 325 | static void set_git_dir_1(const char *path) |
d7ac12b2 | 326 | { |
3540c71e | 327 | xsetenv(GIT_DIR_ENVIRONMENT, path, 1); |
357a03eb | 328 | setup_git_env(path); |
d7ac12b2 | 329 | } |
a6fa5992 | 330 | |
5cf88fd8 | 331 | static void update_relative_gitdir(const char *name UNUSED, |
8500e0de JK |
332 | const char *old_cwd, |
333 | const char *new_cwd, | |
5cf88fd8 | 334 | void *data UNUSED) |
8500e0de JK |
335 | { |
336 | char *path = reparent_relative_path(old_cwd, new_cwd, get_git_dir()); | |
b3cecf49 NS |
337 | struct tmp_objdir *tmp_objdir = tmp_objdir_unapply_primary_odb(); |
338 | ||
8500e0de JK |
339 | trace_printf_key(&trace_setup_key, |
340 | "setup: move $GIT_DIR to '%s'", | |
341 | path); | |
342 | set_git_dir_1(path); | |
b3cecf49 NS |
343 | if (tmp_objdir) |
344 | tmp_objdir_reapply_primary_odb(tmp_objdir, old_cwd, new_cwd); | |
8500e0de JK |
345 | free(path); |
346 | } | |
347 | ||
0915a5b4 | 348 | void set_git_dir(const char *path, int make_realpath) |
8500e0de | 349 | { |
0915a5b4 AM |
350 | struct strbuf realpath = STRBUF_INIT; |
351 | ||
352 | if (make_realpath) { | |
353 | strbuf_realpath(&realpath, path, 1); | |
354 | path = realpath.buf; | |
355 | } | |
356 | ||
8500e0de JK |
357 | set_git_dir_1(path); |
358 | if (!is_absolute_path(path)) | |
359 | chdir_notify_register(NULL, update_relative_gitdir, NULL); | |
0915a5b4 AM |
360 | |
361 | strbuf_release(&realpath); | |
d7ac12b2 | 362 | } |
a6fa5992 PN |
363 | |
364 | const char *get_log_output_encoding(void) | |
365 | { | |
366 | return git_log_output_encoding ? git_log_output_encoding | |
367 | : get_commit_output_encoding(); | |
368 | } | |
369 | ||
370 | const char *get_commit_output_encoding(void) | |
371 | { | |
372 | return git_commit_encoding ? git_commit_encoding : "UTF-8"; | |
373 | } | |
7875acb6 JK |
374 | |
375 | static int the_shared_repository = PERM_UMASK; | |
ae5f6776 | 376 | static int need_shared_repository_from_config = 1; |
7875acb6 JK |
377 | |
378 | void set_shared_repository(int value) | |
379 | { | |
380 | the_shared_repository = value; | |
ae5f6776 | 381 | need_shared_repository_from_config = 0; |
7875acb6 JK |
382 | } |
383 | ||
384 | int get_shared_repository(void) | |
385 | { | |
ae5f6776 JK |
386 | if (need_shared_repository_from_config) { |
387 | const char *var = "core.sharedrepository"; | |
388 | const char *value; | |
389 | if (!git_config_get_value(var, &value)) | |
390 | the_shared_repository = git_config_perm(var, value); | |
391 | need_shared_repository_from_config = 0; | |
392 | } | |
7875acb6 JK |
393 | return the_shared_repository; |
394 | } | |
4543926b JK |
395 | |
396 | void reset_shared_repository(void) | |
397 | { | |
398 | need_shared_repository_from_config = 1; | |
399 | } | |
27344d6a JK |
400 | |
401 | int use_optional_locks(void) | |
402 | { | |
403 | return git_env_bool(GIT_OPTIONAL_LOCKS_ENVIRONMENT, 1); | |
404 | } | |
a2cd709d AR |
405 | |
406 | int print_sha1_ellipsis(void) | |
407 | { | |
408 | /* | |
409 | * Determine if the calling environment contains the variable | |
410 | * GIT_PRINT_SHA1_ELLIPSIS set to "yes". | |
411 | */ | |
412 | static int cached_result = -1; /* unknown */ | |
413 | ||
414 | if (cached_result < 0) { | |
415 | const char *v = getenv("GIT_PRINT_SHA1_ELLIPSIS"); | |
416 | cached_result = (v && !strcasecmp(v, "yes")); | |
417 | } | |
418 | return cached_result; | |
419 | } |