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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 | */ | |
5e3f94df | 10 | #include "git-compat-util.h" |
0b027f6c | 11 | #include "abspath.h" |
e730b81d | 12 | #include "branch.h" |
73359a9b | 13 | #include "convert.h" |
b9d147fb | 14 | #include "environment.h" |
f394e093 | 15 | #include "gettext.h" |
c14c234f | 16 | #include "repository.h" |
b2141fc1 | 17 | #include "config.h" |
a1bea2c1 | 18 | #include "refs.h" |
273c7032 | 19 | #include "fmt-merge-msg.h" |
069c0532 | 20 | #include "commit.h" |
dbbcd44f | 21 | #include "strvec.h" |
87bed179 | 22 | #include "object-file.h" |
a034e910 | 23 | #include "object-store-ll.h" |
c339932b | 24 | #include "path.h" |
cbeab747 | 25 | #include "replace-object.h" |
b3cecf49 | 26 | #include "tmp-objdir.h" |
8500e0de | 27 | #include "chdir-notify.h" |
e38da487 | 28 | #include "setup.h" |
120ad2b0 | 29 | #include "shallow.h" |
74ea5c95 | 30 | #include "trace.h" |
d48be35c | 31 | #include "write-or-die.h" |
e1b10391 | 32 | |
e1b10391 | 33 | int trust_executable_bit = 1; |
1ce4790b | 34 | int trust_ctime = 1; |
c08e4d5b | 35 | int check_stat = 1; |
78a8d641 | 36 | int has_symlinks = 1; |
e6c587c7 | 37 | int minimum_abbrev = 4, default_abbrev = -1; |
0a9b88b7 | 38 | int ignore_case; |
96f1e58f DR |
39 | int assume_unchanged; |
40 | int prefer_symlink_refs; | |
7d1864ce | 41 | int is_bare_repository_cfg = -1; /* unspecified */ |
1b371f56 | 42 | int warn_ambiguous_refs = 1; |
25fba78d | 43 | int warn_on_object_refname_ambiguity = 1; |
067fbd41 | 44 | int repository_format_precious_objects; |
1a8f2741 | 45 | const char *git_commit_encoding; |
3a55602e | 46 | const char *git_log_output_encoding; |
9a53219f JK |
47 | char *apply_default_whitespace; |
48 | char *apply_default_ignorewhitespace; | |
64589a03 | 49 | const char *git_attributes_file; |
867ad08a | 50 | const char *git_hooks_path; |
960ccca6 | 51 | int zlib_compression_level = Z_BEST_SPEED; |
8de7eeb5 | 52 | int pack_compression_level = Z_DEFAULT_COMPRESSION; |
844a8ad4 | 53 | int fsync_object_files = -1; |
412e4cae | 54 | int use_fsync = -1; |
abf38abe | 55 | enum fsync_method fsync_method = FSYNC_METHOD_DEFAULT; |
020406ea | 56 | enum fsync_component fsync_components = FSYNC_COMPONENTS_DEFAULT; |
8c82534d SP |
57 | size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE; |
58 | size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT; | |
4874f544 | 59 | size_t delta_base_cache_limit = 96 * 1024 * 1024; |
15366280 | 60 | unsigned long big_file_threshold = 512 * 1024 * 1024; |
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; |
ec70f52f | 65 | enum eol core_eol = EOL_UNSET; |
8462ff43 | 66 | int global_conv_flags_eol = CONV_EOL_RNDTRP_WARN; |
be6bc048 | 67 | const char *check_roundtrip_encoding = "SHIFT-JIS"; |
9ed36cfa | 68 | enum branch_track git_branch_track = BRANCH_TRACK_REMOTE; |
c998ae9b | 69 | enum rebase_setup_type autorebase = AUTOREBASE_NEVER; |
f25950f3 | 70 | enum push_default_type push_default = PUSH_DEFAULT_UNSPECIFIED; |
348df166 JS |
71 | #ifndef OBJECT_CREATION_MODE |
72 | #define OBJECT_CREATION_MODE OBJECT_CREATION_USES_HARDLINKS | |
be66a6c4 | 73 | #endif |
348df166 | 74 | enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE; |
a97a7468 | 75 | char *notes_ref_name; |
3a5f3087 | 76 | int grafts_keep_true_parents; |
08aefc9e | 77 | int core_apply_sparse_checkout; |
879321eb | 78 | int core_sparse_checkout_cone; |
ecc7c884 | 79 | int sparse_expect_files_outside_of_patterns; |
898eacd8 | 80 | int merge_log_config = -1; |
76759c7d | 81 | int precomposed_unicode = -1; /* see probe_utf8_pathname_composition() */ |
568508e7 | 82 | unsigned long pack_size_limit_cfg; |
341fb286 | 83 | enum log_refs_config log_all_ref_updates = LOG_REFS_UNSET; |
b64d78ad JS |
84 | int max_allowed_tree_depth = |
85 | #ifdef _MSC_VER | |
86 | /* | |
87 | * When traversing into too-deep trees, Visual C-compiled Git seems to | |
88 | * run into some internal stack overflow detection in the | |
89 | * `RtlpAllocateHeap()` function that is called from within | |
90 | * `git_inflate_init()`'s call tree. The following value seems to be | |
91 | * low enough to avoid that by letting Git exit with an error before | |
92 | * the stack overflow can occur. | |
93 | */ | |
94 | 512; | |
95 | #else | |
96 | 2048; | |
97 | #endif | |
e1b10391 | 98 | |
a42643aa JK |
99 | #ifndef PROTECT_HFS_DEFAULT |
100 | #define PROTECT_HFS_DEFAULT 0 | |
101 | #endif | |
102 | int protect_hfs = PROTECT_HFS_DEFAULT; | |
103 | ||
2b4c6efc | 104 | #ifndef PROTECT_NTFS_DEFAULT |
9102f958 | 105 | #define PROTECT_NTFS_DEFAULT 1 |
2b4c6efc JS |
106 | #endif |
107 | int protect_ntfs = PROTECT_NTFS_DEFAULT; | |
108 | ||
eff80a9f JH |
109 | /* |
110 | * The character that begins a commented line in user-editable file | |
111 | * that is subject to stripspace. | |
112 | */ | |
113 | char comment_line_char = '#'; | |
84c9dc2c | 114 | int auto_comment_line_char; |
eff80a9f | 115 | |
671c9b7e | 116 | /* Parallel index stat data preload? */ |
299e2987 | 117 | int core_preload_index = 1; |
671c9b7e | 118 | |
e90fdc39 JS |
119 | /* This is set by setup_git_dir_gently() and/or git_default_config() */ |
120 | char *git_work_tree_cfg; | |
e90fdc39 | 121 | |
38f3f094 | 122 | static char *git_namespace; |
a1bea2c1 | 123 | |
48a7c1c4 | 124 | /* |
bc5c5ec0 | 125 | * Repository-local GIT_* environment variables; see environment.h for details. |
48a7c1c4 | 126 | */ |
2163e5db | 127 | const char * const local_repo_env[] = { |
48a7c1c4 GB |
128 | ALTERNATE_DB_ENVIRONMENT, |
129 | CONFIG_ENVIRONMENT, | |
655e8d9c | 130 | CONFIG_DATA_ENVIRONMENT, |
d8d77153 | 131 | CONFIG_COUNT_ENVIRONMENT, |
48a7c1c4 GB |
132 | DB_ENVIRONMENT, |
133 | GIT_DIR_ENVIRONMENT, | |
134 | GIT_WORK_TREE_ENVIRONMENT, | |
2cd83d10 | 135 | GIT_IMPLICIT_WORK_TREE_ENVIRONMENT, |
48a7c1c4 GB |
136 | GRAFT_ENVIRONMENT, |
137 | INDEX_ENVIRONMENT, | |
138 | NO_REPLACE_OBJECTS_ENVIRONMENT, | |
58d121b2 | 139 | GIT_REPLACE_REF_BASE_ENVIRONMENT, |
a6f7f9a3 | 140 | GIT_PREFIX_ENVIRONMENT, |
069c0532 | 141 | GIT_SHALLOW_FILE_ENVIRONMENT, |
c7b3a3d2 | 142 | GIT_COMMON_DIR_ENVIRONMENT, |
48a7c1c4 GB |
143 | NULL |
144 | }; | |
145 | ||
a1bea2c1 JT |
146 | static char *expand_namespace(const char *raw_namespace) |
147 | { | |
148 | struct strbuf buf = STRBUF_INIT; | |
149 | struct strbuf **components, **c; | |
150 | ||
151 | if (!raw_namespace || !*raw_namespace) | |
152 | return xstrdup(""); | |
153 | ||
154 | strbuf_addstr(&buf, raw_namespace); | |
155 | components = strbuf_split(&buf, '/'); | |
156 | strbuf_reset(&buf); | |
157 | for (c = components; *c; c++) | |
158 | if (strcmp((*c)->buf, "/") != 0) | |
159 | strbuf_addf(&buf, "refs/namespaces/%s", (*c)->buf); | |
160 | strbuf_list_free(components); | |
8d9c5010 | 161 | if (check_refname_format(buf.buf, 0)) |
cbb46ca7 | 162 | die(_("bad git namespace path \"%s\""), raw_namespace); |
a1bea2c1 JT |
163 | strbuf_addch(&buf, '/'); |
164 | return strbuf_detach(&buf, NULL); | |
165 | } | |
166 | ||
b9d147fb | 167 | const char *getenv_safe(struct strvec *argv, const char *name) |
357a03eb NTND |
168 | { |
169 | const char *value = getenv(name); | |
170 | ||
171 | if (!value) | |
172 | return NULL; | |
173 | ||
ef8d7ac4 | 174 | strvec_push(argv, value); |
d70a9eb6 | 175 | return argv->v[argv->nr - 1]; |
357a03eb NTND |
176 | } |
177 | ||
178 | void setup_git_env(const char *git_dir) | |
e1b10391 | 179 | { |
97e61e0f | 180 | char *git_replace_ref_base; |
069c0532 | 181 | const char *shallow_file; |
58d121b2 | 182 | const char *replace_ref_base; |
357a03eb | 183 | struct set_gitdir_args args = { NULL }; |
ef8d7ac4 | 184 | struct strvec to_free = STRVEC_INIT; |
357a03eb NTND |
185 | |
186 | args.commondir = getenv_safe(&to_free, GIT_COMMON_DIR_ENVIRONMENT); | |
187 | args.object_dir = getenv_safe(&to_free, DB_ENVIRONMENT); | |
188 | args.graft_file = getenv_safe(&to_free, GRAFT_ENVIRONMENT); | |
189 | args.index_file = getenv_safe(&to_free, INDEX_ENVIRONMENT); | |
7bc0dcaa | 190 | args.alternate_db = getenv_safe(&to_free, ALTERNATE_DB_ENVIRONMENT); |
ecd81dfc NS |
191 | if (getenv(GIT_QUARANTINE_ENVIRONMENT)) { |
192 | args.disable_ref_updates = 1; | |
193 | } | |
194 | ||
357a03eb | 195 | repo_set_gitdir(the_repository, git_dir, &args); |
ef8d7ac4 | 196 | strvec_clear(&to_free); |
487a2b73 | 197 | |
6476b38b | 198 | if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT)) |
d24eda4e | 199 | disable_replace_refs(); |
58d121b2 MH |
200 | replace_ref_base = getenv(GIT_REPLACE_REF_BASE_ENVIRONMENT); |
201 | git_replace_ref_base = xstrdup(replace_ref_base ? replace_ref_base | |
202 | : "refs/replace/"); | |
b9342b3f DS |
203 | update_ref_namespace(NAMESPACE_REPLACE, git_replace_ref_base); |
204 | ||
38f3f094 BW |
205 | free(git_namespace); |
206 | git_namespace = expand_namespace(getenv(GIT_NAMESPACE_ENVIRONMENT)); | |
069c0532 NTND |
207 | shallow_file = getenv(GIT_SHALLOW_FILE_ENVIRONMENT); |
208 | if (shallow_file) | |
6a2df51c | 209 | set_alternate_shallow_file(the_repository, shallow_file, 0); |
0bee5918 SP |
210 | } |
211 | ||
7d1864ce | 212 | int is_bare_repository(void) |
0bee5918 | 213 | { |
e90fdc39 JS |
214 | /* if core.bare is not 'false', let's see if there is a work tree */ |
215 | return is_bare_repository_cfg && !get_git_work_tree(); | |
e1b10391 LT |
216 | } |
217 | ||
b9605bc4 JK |
218 | int have_git_dir(void) |
219 | { | |
220 | return startup_info->have_repository | |
c14c234f | 221 | || the_repository->gitdir; |
b9605bc4 JK |
222 | } |
223 | ||
c5fba16c | 224 | const char *get_git_dir(void) |
e1b10391 | 225 | { |
c14c234f | 226 | if (!the_repository->gitdir) |
73f192c9 | 227 | BUG("git environment hasn't been setup"); |
c14c234f | 228 | return the_repository->gitdir; |
e1b10391 LT |
229 | } |
230 | ||
c7b3a3d2 NTND |
231 | const char *get_git_common_dir(void) |
232 | { | |
c14c234f | 233 | if (!the_repository->commondir) |
73f192c9 | 234 | BUG("git environment hasn't been setup"); |
c14c234f | 235 | return the_repository->commondir; |
c7b3a3d2 NTND |
236 | } |
237 | ||
a1bea2c1 JT |
238 | const char *get_git_namespace(void) |
239 | { | |
38f3f094 | 240 | if (!git_namespace) |
73f192c9 | 241 | BUG("git environment hasn't been setup"); |
38f3f094 | 242 | return git_namespace; |
a1bea2c1 JT |
243 | } |
244 | ||
245 | const char *strip_namespace(const char *namespaced_ref) | |
246 | { | |
bf08c8cf BW |
247 | const char *out; |
248 | if (skip_prefix(namespaced_ref, get_git_namespace(), &out)) | |
249 | return out; | |
250 | return NULL; | |
a1bea2c1 JT |
251 | } |
252 | ||
19757d80 DB |
253 | static int git_work_tree_initialized; |
254 | ||
255 | /* | |
256 | * Note. This works only before you used a work tree. This was added | |
257 | * primarily to support git-clone to work in a new repository it just | |
258 | * created, and is not meant to flip between different work trees. | |
259 | */ | |
260 | void set_git_work_tree(const char *new_work_tree) | |
261 | { | |
83518360 | 262 | if (git_work_tree_initialized) { |
14c3dd81 AH |
263 | struct strbuf realpath = STRBUF_INIT; |
264 | ||
3d7747e3 AM |
265 | strbuf_realpath(&realpath, new_work_tree, 1); |
266 | new_work_tree = realpath.buf; | |
b4158732 | 267 | if (strcmp(new_work_tree, the_repository->worktree)) |
83518360 NTND |
268 | die("internal error: work tree has already been set\n" |
269 | "Current worktree: %s\nNew worktree: %s", | |
b4158732 | 270 | the_repository->worktree, new_work_tree); |
14c3dd81 | 271 | strbuf_release(&realpath); |
83518360 NTND |
272 | return; |
273 | } | |
19757d80 | 274 | git_work_tree_initialized = 1; |
b4158732 | 275 | repo_set_worktree(the_repository, new_work_tree); |
19757d80 DB |
276 | } |
277 | ||
e90fdc39 JS |
278 | const char *get_git_work_tree(void) |
279 | { | |
b4158732 | 280 | return the_repository->worktree; |
e90fdc39 JS |
281 | } |
282 | ||
11f9e8de | 283 | const char *get_object_directory(void) |
e1b10391 | 284 | { |
f0eaf638 | 285 | if (!the_repository->objects->odb) |
73f192c9 | 286 | BUG("git environment hasn't been setup"); |
f0eaf638 | 287 | return the_repository->objects->odb->path; |
e1b10391 LT |
288 | } |
289 | ||
a63b5fca | 290 | int odb_mkstemp(struct strbuf *temp_filename, const char *pattern) |
463db9b1 JN |
291 | { |
292 | int fd; | |
293 | /* | |
294 | * we let the umask do its job, don't try to be more | |
295 | * restrictive except to remove write permission. | |
296 | */ | |
297 | int mode = 0444; | |
a63b5fca BW |
298 | git_path_buf(temp_filename, "objects/%s", pattern); |
299 | fd = git_mkstemp_mode(temp_filename->buf, mode); | |
463db9b1 JN |
300 | if (0 <= fd) |
301 | return fd; | |
302 | ||
303 | /* slow path */ | |
a63b5fca BW |
304 | /* some mkstemp implementations erase temp_filename on failure */ |
305 | git_path_buf(temp_filename, "objects/%s", pattern); | |
306 | safe_create_leading_directories(temp_filename->buf); | |
307 | return xmkstemp_mode(temp_filename->buf, mode); | |
463db9b1 JN |
308 | } |
309 | ||
eaeefc32 | 310 | int odb_pack_keep(const char *name) |
463db9b1 JN |
311 | { |
312 | int fd; | |
313 | ||
463db9b1 JN |
314 | fd = open(name, O_RDWR|O_CREAT|O_EXCL, 0600); |
315 | if (0 <= fd) | |
316 | return fd; | |
317 | ||
318 | /* slow path */ | |
eaeefc32 | 319 | safe_create_leading_directories_const(name); |
463db9b1 JN |
320 | return open(name, O_RDWR|O_CREAT|O_EXCL, 0600); |
321 | } | |
322 | ||
e1b10391 LT |
323 | char *get_index_file(void) |
324 | { | |
c14c234f | 325 | if (!the_repository->index_file) |
73f192c9 | 326 | BUG("git environment hasn't been setup"); |
c14c234f | 327 | return the_repository->index_file; |
e1b10391 LT |
328 | } |
329 | ||
0437a2e3 | 330 | char *get_graft_file(struct repository *r) |
e1b10391 | 331 | { |
0437a2e3 | 332 | if (!r->graft_file) |
73f192c9 | 333 | BUG("git environment hasn't been setup"); |
0437a2e3 | 334 | return r->graft_file; |
e1b10391 | 335 | } |
d7ac12b2 | 336 | |
8500e0de | 337 | static void set_git_dir_1(const char *path) |
d7ac12b2 | 338 | { |
3540c71e | 339 | xsetenv(GIT_DIR_ENVIRONMENT, path, 1); |
357a03eb | 340 | setup_git_env(path); |
d7ac12b2 | 341 | } |
a6fa5992 | 342 | |
5cf88fd8 | 343 | static void update_relative_gitdir(const char *name UNUSED, |
8500e0de JK |
344 | const char *old_cwd, |
345 | const char *new_cwd, | |
5cf88fd8 | 346 | void *data UNUSED) |
8500e0de JK |
347 | { |
348 | char *path = reparent_relative_path(old_cwd, new_cwd, get_git_dir()); | |
b3cecf49 NS |
349 | struct tmp_objdir *tmp_objdir = tmp_objdir_unapply_primary_odb(); |
350 | ||
8500e0de JK |
351 | trace_printf_key(&trace_setup_key, |
352 | "setup: move $GIT_DIR to '%s'", | |
353 | path); | |
354 | set_git_dir_1(path); | |
b3cecf49 NS |
355 | if (tmp_objdir) |
356 | tmp_objdir_reapply_primary_odb(tmp_objdir, old_cwd, new_cwd); | |
8500e0de JK |
357 | free(path); |
358 | } | |
359 | ||
0915a5b4 | 360 | void set_git_dir(const char *path, int make_realpath) |
8500e0de | 361 | { |
0915a5b4 AM |
362 | struct strbuf realpath = STRBUF_INIT; |
363 | ||
364 | if (make_realpath) { | |
365 | strbuf_realpath(&realpath, path, 1); | |
366 | path = realpath.buf; | |
367 | } | |
368 | ||
8500e0de JK |
369 | set_git_dir_1(path); |
370 | if (!is_absolute_path(path)) | |
371 | chdir_notify_register(NULL, update_relative_gitdir, NULL); | |
0915a5b4 AM |
372 | |
373 | strbuf_release(&realpath); | |
d7ac12b2 | 374 | } |
a6fa5992 PN |
375 | |
376 | const char *get_log_output_encoding(void) | |
377 | { | |
378 | return git_log_output_encoding ? git_log_output_encoding | |
379 | : get_commit_output_encoding(); | |
380 | } | |
381 | ||
382 | const char *get_commit_output_encoding(void) | |
383 | { | |
384 | return git_commit_encoding ? git_commit_encoding : "UTF-8"; | |
385 | } | |
7875acb6 JK |
386 | |
387 | static int the_shared_repository = PERM_UMASK; | |
ae5f6776 | 388 | static int need_shared_repository_from_config = 1; |
7875acb6 JK |
389 | |
390 | void set_shared_repository(int value) | |
391 | { | |
392 | the_shared_repository = value; | |
ae5f6776 | 393 | need_shared_repository_from_config = 0; |
7875acb6 JK |
394 | } |
395 | ||
396 | int get_shared_repository(void) | |
397 | { | |
ae5f6776 JK |
398 | if (need_shared_repository_from_config) { |
399 | const char *var = "core.sharedrepository"; | |
400 | const char *value; | |
401 | if (!git_config_get_value(var, &value)) | |
402 | the_shared_repository = git_config_perm(var, value); | |
403 | need_shared_repository_from_config = 0; | |
404 | } | |
7875acb6 JK |
405 | return the_shared_repository; |
406 | } | |
4543926b JK |
407 | |
408 | void reset_shared_repository(void) | |
409 | { | |
410 | need_shared_repository_from_config = 1; | |
411 | } | |
27344d6a JK |
412 | |
413 | int use_optional_locks(void) | |
414 | { | |
415 | return git_env_bool(GIT_OPTIONAL_LOCKS_ENVIRONMENT, 1); | |
416 | } | |
a2cd709d AR |
417 | |
418 | int print_sha1_ellipsis(void) | |
419 | { | |
420 | /* | |
421 | * Determine if the calling environment contains the variable | |
422 | * GIT_PRINT_SHA1_ELLIPSIS set to "yes". | |
423 | */ | |
424 | static int cached_result = -1; /* unknown */ | |
425 | ||
426 | if (cached_result < 0) { | |
427 | const char *v = getenv("GIT_PRINT_SHA1_ELLIPSIS"); | |
428 | cached_result = (v && !strcasecmp(v, "yes")); | |
429 | } | |
430 | return cached_result; | |
431 | } |