Line | Count | Source (jump to first uncovered line) |
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 | | |
11 | | #define USE_THE_REPOSITORY_VARIABLE |
12 | | |
13 | | #include "git-compat-util.h" |
14 | | #include "abspath.h" |
15 | | #include "branch.h" |
16 | | #include "convert.h" |
17 | | #include "environment.h" |
18 | | #include "gettext.h" |
19 | | #include "repository.h" |
20 | | #include "config.h" |
21 | | #include "refs.h" |
22 | | #include "fmt-merge-msg.h" |
23 | | #include "commit.h" |
24 | | #include "strvec.h" |
25 | | #include "object-file.h" |
26 | | #include "object-store-ll.h" |
27 | | #include "path.h" |
28 | | #include "replace-object.h" |
29 | | #include "tmp-objdir.h" |
30 | | #include "chdir-notify.h" |
31 | | #include "setup.h" |
32 | | #include "shallow.h" |
33 | | #include "trace.h" |
34 | | #include "write-or-die.h" |
35 | | |
36 | | int trust_executable_bit = 1; |
37 | | int trust_ctime = 1; |
38 | | int check_stat = 1; |
39 | | int has_symlinks = 1; |
40 | | int minimum_abbrev = 4, default_abbrev = -1; |
41 | | int ignore_case; |
42 | | int assume_unchanged; |
43 | | int prefer_symlink_refs; |
44 | | int is_bare_repository_cfg = -1; /* unspecified */ |
45 | | int warn_ambiguous_refs = 1; |
46 | | int warn_on_object_refname_ambiguity = 1; |
47 | | int repository_format_precious_objects; |
48 | | char *git_commit_encoding; |
49 | | char *git_log_output_encoding; |
50 | | char *apply_default_whitespace; |
51 | | char *apply_default_ignorewhitespace; |
52 | | char *git_attributes_file; |
53 | | char *git_hooks_path; |
54 | | int zlib_compression_level = Z_BEST_SPEED; |
55 | | int pack_compression_level = Z_DEFAULT_COMPRESSION; |
56 | | int fsync_object_files = -1; |
57 | | int use_fsync = -1; |
58 | | enum fsync_method fsync_method = FSYNC_METHOD_DEFAULT; |
59 | | enum fsync_component fsync_components = FSYNC_COMPONENTS_DEFAULT; |
60 | | size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE; |
61 | | size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT; |
62 | | size_t delta_base_cache_limit = 96 * 1024 * 1024; |
63 | | unsigned long big_file_threshold = 512 * 1024 * 1024; |
64 | | char *editor_program; |
65 | | char *askpass_program; |
66 | | char *excludes_file; |
67 | | enum auto_crlf auto_crlf = AUTO_CRLF_FALSE; |
68 | | enum eol core_eol = EOL_UNSET; |
69 | | int global_conv_flags_eol = CONV_EOL_RNDTRP_WARN; |
70 | | char *check_roundtrip_encoding; |
71 | | enum branch_track git_branch_track = BRANCH_TRACK_REMOTE; |
72 | | enum rebase_setup_type autorebase = AUTOREBASE_NEVER; |
73 | | enum push_default_type push_default = PUSH_DEFAULT_UNSPECIFIED; |
74 | | #ifndef OBJECT_CREATION_MODE |
75 | | #define OBJECT_CREATION_MODE OBJECT_CREATION_USES_HARDLINKS |
76 | | #endif |
77 | | enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE; |
78 | | char *notes_ref_name; |
79 | | int grafts_keep_true_parents; |
80 | | int core_apply_sparse_checkout; |
81 | | int core_sparse_checkout_cone; |
82 | | int sparse_expect_files_outside_of_patterns; |
83 | | int merge_log_config = -1; |
84 | | int precomposed_unicode = -1; /* see probe_utf8_pathname_composition() */ |
85 | | unsigned long pack_size_limit_cfg; |
86 | | enum log_refs_config log_all_ref_updates = LOG_REFS_UNSET; |
87 | | int max_allowed_tree_depth = |
88 | | #ifdef _MSC_VER |
89 | | /* |
90 | | * When traversing into too-deep trees, Visual C-compiled Git seems to |
91 | | * run into some internal stack overflow detection in the |
92 | | * `RtlpAllocateHeap()` function that is called from within |
93 | | * `git_inflate_init()`'s call tree. The following value seems to be |
94 | | * low enough to avoid that by letting Git exit with an error before |
95 | | * the stack overflow can occur. |
96 | | */ |
97 | | 512; |
98 | | #else |
99 | | 2048; |
100 | | #endif |
101 | | |
102 | | #ifndef PROTECT_HFS_DEFAULT |
103 | | #define PROTECT_HFS_DEFAULT 0 |
104 | | #endif |
105 | | int protect_hfs = PROTECT_HFS_DEFAULT; |
106 | | |
107 | | #ifndef PROTECT_NTFS_DEFAULT |
108 | | #define PROTECT_NTFS_DEFAULT 1 |
109 | | #endif |
110 | | int protect_ntfs = PROTECT_NTFS_DEFAULT; |
111 | | |
112 | | /* |
113 | | * The character that begins a commented line in user-editable file |
114 | | * that is subject to stripspace. |
115 | | */ |
116 | | const char *comment_line_str = "#"; |
117 | | char *comment_line_str_to_free; |
118 | | int auto_comment_line_char; |
119 | | |
120 | | /* Parallel index stat data preload? */ |
121 | | int core_preload_index = 1; |
122 | | |
123 | | /* This is set by setup_git_dir_gently() and/or git_default_config() */ |
124 | | char *git_work_tree_cfg; |
125 | | |
126 | | static char *git_namespace; |
127 | | |
128 | | /* |
129 | | * Repository-local GIT_* environment variables; see environment.h for details. |
130 | | */ |
131 | | const char * const local_repo_env[] = { |
132 | | ALTERNATE_DB_ENVIRONMENT, |
133 | | CONFIG_ENVIRONMENT, |
134 | | CONFIG_DATA_ENVIRONMENT, |
135 | | CONFIG_COUNT_ENVIRONMENT, |
136 | | DB_ENVIRONMENT, |
137 | | GIT_DIR_ENVIRONMENT, |
138 | | GIT_WORK_TREE_ENVIRONMENT, |
139 | | GIT_IMPLICIT_WORK_TREE_ENVIRONMENT, |
140 | | GRAFT_ENVIRONMENT, |
141 | | INDEX_ENVIRONMENT, |
142 | | NO_REPLACE_OBJECTS_ENVIRONMENT, |
143 | | GIT_REPLACE_REF_BASE_ENVIRONMENT, |
144 | | GIT_PREFIX_ENVIRONMENT, |
145 | | GIT_SHALLOW_FILE_ENVIRONMENT, |
146 | | GIT_COMMON_DIR_ENVIRONMENT, |
147 | | NULL |
148 | | }; |
149 | | |
150 | | static char *expand_namespace(const char *raw_namespace) |
151 | 14.1k | { |
152 | 14.1k | struct strbuf buf = STRBUF_INIT; |
153 | 14.1k | struct strbuf **components, **c; |
154 | | |
155 | 14.1k | if (!raw_namespace || !*raw_namespace) |
156 | 14.1k | return xstrdup(""); |
157 | | |
158 | 0 | strbuf_addstr(&buf, raw_namespace); |
159 | 0 | components = strbuf_split(&buf, '/'); |
160 | 0 | strbuf_reset(&buf); |
161 | 0 | for (c = components; *c; c++) |
162 | 0 | if (strcmp((*c)->buf, "/") != 0) |
163 | 0 | strbuf_addf(&buf, "refs/namespaces/%s", (*c)->buf); |
164 | 0 | strbuf_list_free(components); |
165 | 0 | if (check_refname_format(buf.buf, 0)) |
166 | 0 | die(_("bad git namespace path \"%s\""), raw_namespace); |
167 | 0 | strbuf_addch(&buf, '/'); |
168 | 0 | return strbuf_detach(&buf, NULL); |
169 | 0 | } |
170 | | |
171 | | const char *getenv_safe(struct strvec *argv, const char *name) |
172 | 70.5k | { |
173 | 70.5k | const char *value = getenv(name); |
174 | | |
175 | 70.5k | if (!value) |
176 | 70.5k | return NULL; |
177 | | |
178 | 0 | strvec_push(argv, value); |
179 | 0 | return argv->v[argv->nr - 1]; |
180 | 70.5k | } |
181 | | |
182 | | void setup_git_env(const char *git_dir) |
183 | 14.1k | { |
184 | 14.1k | char *git_replace_ref_base; |
185 | 14.1k | const char *shallow_file; |
186 | 14.1k | const char *replace_ref_base; |
187 | 14.1k | struct set_gitdir_args args = { NULL }; |
188 | 14.1k | struct strvec to_free = STRVEC_INIT; |
189 | | |
190 | 14.1k | args.commondir = getenv_safe(&to_free, GIT_COMMON_DIR_ENVIRONMENT); |
191 | 14.1k | args.object_dir = getenv_safe(&to_free, DB_ENVIRONMENT); |
192 | 14.1k | args.graft_file = getenv_safe(&to_free, GRAFT_ENVIRONMENT); |
193 | 14.1k | args.index_file = getenv_safe(&to_free, INDEX_ENVIRONMENT); |
194 | 14.1k | args.alternate_db = getenv_safe(&to_free, ALTERNATE_DB_ENVIRONMENT); |
195 | 14.1k | if (getenv(GIT_QUARANTINE_ENVIRONMENT)) { |
196 | 0 | args.disable_ref_updates = 1; |
197 | 0 | } |
198 | | |
199 | 14.1k | repo_set_gitdir(the_repository, git_dir, &args); |
200 | 14.1k | strvec_clear(&to_free); |
201 | | |
202 | 14.1k | if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT)) |
203 | 0 | disable_replace_refs(); |
204 | 14.1k | replace_ref_base = getenv(GIT_REPLACE_REF_BASE_ENVIRONMENT); |
205 | 14.1k | git_replace_ref_base = xstrdup(replace_ref_base ? replace_ref_base |
206 | 14.1k | : "refs/replace/"); |
207 | 14.1k | update_ref_namespace(NAMESPACE_REPLACE, git_replace_ref_base); |
208 | | |
209 | 14.1k | free(git_namespace); |
210 | 14.1k | git_namespace = expand_namespace(getenv(GIT_NAMESPACE_ENVIRONMENT)); |
211 | 14.1k | shallow_file = getenv(GIT_SHALLOW_FILE_ENVIRONMENT); |
212 | 14.1k | if (shallow_file) |
213 | 0 | set_alternate_shallow_file(the_repository, shallow_file, 0); |
214 | | |
215 | 14.1k | if (git_env_bool(NO_LAZY_FETCH_ENVIRONMENT, 0)) |
216 | 0 | fetch_if_missing = 0; |
217 | 14.1k | } |
218 | | |
219 | | int is_bare_repository(void) |
220 | 1.65k | { |
221 | | /* if core.bare is not 'false', let's see if there is a work tree */ |
222 | 1.65k | return is_bare_repository_cfg && !get_git_work_tree(); |
223 | 1.65k | } |
224 | | |
225 | | int have_git_dir(void) |
226 | 12.4k | { |
227 | 12.4k | return startup_info->have_repository |
228 | 12.4k | || the_repository->gitdir; |
229 | 12.4k | } |
230 | | |
231 | | const char *get_git_dir(void) |
232 | 25.0k | { |
233 | 25.0k | if (!the_repository->gitdir) |
234 | 0 | BUG("git environment hasn't been setup"); |
235 | 25.0k | return the_repository->gitdir; |
236 | 25.0k | } |
237 | | |
238 | | const char *get_git_common_dir(void) |
239 | 14.1k | { |
240 | 14.1k | if (!the_repository->commondir) |
241 | 0 | BUG("git environment hasn't been setup"); |
242 | 14.1k | return the_repository->commondir; |
243 | 14.1k | } |
244 | | |
245 | | const char *get_git_namespace(void) |
246 | 0 | { |
247 | 0 | if (!git_namespace) |
248 | 0 | BUG("git environment hasn't been setup"); |
249 | 0 | return git_namespace; |
250 | 0 | } |
251 | | |
252 | | const char *strip_namespace(const char *namespaced_ref) |
253 | 0 | { |
254 | 0 | const char *out; |
255 | 0 | if (skip_prefix(namespaced_ref, get_git_namespace(), &out)) |
256 | 0 | return out; |
257 | 0 | return NULL; |
258 | 0 | } |
259 | | |
260 | | static int git_work_tree_initialized; |
261 | | |
262 | | /* |
263 | | * Note. This works only before you used a work tree. This was added |
264 | | * primarily to support git-clone to work in a new repository it just |
265 | | * created, and is not meant to flip between different work trees. |
266 | | */ |
267 | | void set_git_work_tree(const char *new_work_tree) |
268 | 14.1k | { |
269 | 14.1k | if (git_work_tree_initialized) { |
270 | 0 | struct strbuf realpath = STRBUF_INIT; |
271 | |
|
272 | 0 | strbuf_realpath(&realpath, new_work_tree, 1); |
273 | 0 | new_work_tree = realpath.buf; |
274 | 0 | if (strcmp(new_work_tree, the_repository->worktree)) |
275 | 0 | die("internal error: work tree has already been set\n" |
276 | 0 | "Current worktree: %s\nNew worktree: %s", |
277 | 0 | the_repository->worktree, new_work_tree); |
278 | 0 | strbuf_release(&realpath); |
279 | 0 | return; |
280 | 0 | } |
281 | 14.1k | git_work_tree_initialized = 0; |
282 | 14.1k | repo_set_worktree(the_repository, new_work_tree); |
283 | 14.1k | } |
284 | | |
285 | | const char *get_git_work_tree(void) |
286 | 15.7k | { |
287 | 15.7k | return the_repository->worktree; |
288 | 15.7k | } |
289 | | |
290 | | const char *get_object_directory(void) |
291 | 1.65k | { |
292 | 1.65k | if (!the_repository->objects->odb) |
293 | 0 | BUG("git environment hasn't been setup"); |
294 | 1.65k | return the_repository->objects->odb->path; |
295 | 1.65k | } |
296 | | |
297 | | int odb_mkstemp(struct strbuf *temp_filename, const char *pattern) |
298 | 0 | { |
299 | 0 | int fd; |
300 | | /* |
301 | | * we let the umask do its job, don't try to be more |
302 | | * restrictive except to remove write permission. |
303 | | */ |
304 | 0 | int mode = 0444; |
305 | 0 | git_path_buf(temp_filename, "objects/%s", pattern); |
306 | 0 | fd = git_mkstemp_mode(temp_filename->buf, mode); |
307 | 0 | if (0 <= fd) |
308 | 0 | return fd; |
309 | | |
310 | | /* slow path */ |
311 | | /* some mkstemp implementations erase temp_filename on failure */ |
312 | 0 | git_path_buf(temp_filename, "objects/%s", pattern); |
313 | 0 | safe_create_leading_directories(temp_filename->buf); |
314 | 0 | return xmkstemp_mode(temp_filename->buf, mode); |
315 | 0 | } |
316 | | |
317 | | int odb_pack_keep(const char *name) |
318 | 0 | { |
319 | 0 | int fd; |
320 | |
|
321 | 0 | fd = open(name, O_RDWR|O_CREAT|O_EXCL, 0600); |
322 | 0 | if (0 <= fd) |
323 | 0 | return fd; |
324 | | |
325 | | /* slow path */ |
326 | 0 | safe_create_leading_directories_const(name); |
327 | 0 | return open(name, O_RDWR|O_CREAT|O_EXCL, 0600); |
328 | 0 | } |
329 | | |
330 | | char *get_index_file(void) |
331 | 28.0k | { |
332 | 28.0k | if (!the_repository->index_file) |
333 | 0 | BUG("git environment hasn't been setup"); |
334 | 28.0k | return the_repository->index_file; |
335 | 28.0k | } |
336 | | |
337 | | char *get_graft_file(struct repository *r) |
338 | 1.46k | { |
339 | 1.46k | if (!r->graft_file) |
340 | 0 | BUG("git environment hasn't been setup"); |
341 | 1.46k | return r->graft_file; |
342 | 1.46k | } |
343 | | |
344 | | static void set_git_dir_1(const char *path) |
345 | 14.1k | { |
346 | 14.1k | xsetenv(GIT_DIR_ENVIRONMENT, path, 1); |
347 | 14.1k | setup_git_env(path); |
348 | 14.1k | } |
349 | | |
350 | | static void update_relative_gitdir(const char *name UNUSED, |
351 | | const char *old_cwd, |
352 | | const char *new_cwd, |
353 | | void *data UNUSED) |
354 | 0 | { |
355 | 0 | char *path = reparent_relative_path(old_cwd, new_cwd, get_git_dir()); |
356 | 0 | struct tmp_objdir *tmp_objdir = tmp_objdir_unapply_primary_odb(); |
357 | |
|
358 | 0 | trace_printf_key(&trace_setup_key, |
359 | 0 | "setup: move $GIT_DIR to '%s'", |
360 | 0 | path); |
361 | 0 | set_git_dir_1(path); |
362 | 0 | if (tmp_objdir) |
363 | 0 | tmp_objdir_reapply_primary_odb(tmp_objdir, old_cwd, new_cwd); |
364 | 0 | free(path); |
365 | 0 | } |
366 | | |
367 | | void set_git_dir(const char *path, int make_realpath) |
368 | 14.1k | { |
369 | 14.1k | struct strbuf realpath = STRBUF_INIT; |
370 | | |
371 | 14.1k | if (make_realpath) { |
372 | 1.65k | strbuf_realpath(&realpath, path, 1); |
373 | 1.65k | path = realpath.buf; |
374 | 1.65k | } |
375 | | |
376 | 14.1k | set_git_dir_1(path); |
377 | 14.1k | if (!is_absolute_path(path)) |
378 | 0 | chdir_notify_register(NULL, update_relative_gitdir, NULL); |
379 | | |
380 | 14.1k | strbuf_release(&realpath); |
381 | 14.1k | } |
382 | | |
383 | | const char *get_log_output_encoding(void) |
384 | 59.5k | { |
385 | 59.5k | return git_log_output_encoding ? git_log_output_encoding |
386 | 59.5k | : get_commit_output_encoding(); |
387 | 59.5k | } |
388 | | |
389 | | const char *get_commit_output_encoding(void) |
390 | 59.5k | { |
391 | 59.5k | return git_commit_encoding ? git_commit_encoding : "UTF-8"; |
392 | 59.5k | } |
393 | | |
394 | | static int the_shared_repository = PERM_UMASK; |
395 | | static int need_shared_repository_from_config = 1; |
396 | | |
397 | | void set_shared_repository(int value) |
398 | 0 | { |
399 | 0 | the_shared_repository = value; |
400 | 0 | need_shared_repository_from_config = 0; |
401 | 0 | } |
402 | | |
403 | | int get_shared_repository(void) |
404 | 155k | { |
405 | 155k | if (need_shared_repository_from_config) { |
406 | 1.65k | const char *var = "core.sharedrepository"; |
407 | 1.65k | const char *value; |
408 | 1.65k | if (!git_config_get_value(var, &value)) |
409 | 0 | the_shared_repository = git_config_perm(var, value); |
410 | 1.65k | need_shared_repository_from_config = 0; |
411 | 1.65k | } |
412 | 155k | return the_shared_repository; |
413 | 155k | } |
414 | | |
415 | | void reset_shared_repository(void) |
416 | 1.65k | { |
417 | 1.65k | need_shared_repository_from_config = 1; |
418 | 1.65k | } |
419 | | |
420 | | int use_optional_locks(void) |
421 | 0 | { |
422 | 0 | return git_env_bool(GIT_OPTIONAL_LOCKS_ENVIRONMENT, 1); |
423 | 0 | } |
424 | | |
425 | | int print_sha1_ellipsis(void) |
426 | 2.73k | { |
427 | | /* |
428 | | * Determine if the calling environment contains the variable |
429 | | * GIT_PRINT_SHA1_ELLIPSIS set to "yes". |
430 | | */ |
431 | 2.73k | static int cached_result = -1; /* unknown */ |
432 | | |
433 | 2.73k | if (cached_result < 0) { |
434 | 1 | const char *v = getenv("GIT_PRINT_SHA1_ELLIPSIS"); |
435 | 1 | cached_result = (v && !strcasecmp(v, "yes")); |
436 | 1 | } |
437 | 2.73k | return cached_result; |
438 | 2.73k | } |