3 #include "string-list.h"
5 static int inside_git_dir
= -1;
6 static int inside_work_tree
= -1;
7 static int work_tree_config_is_bogus
;
10 * The input parameter must contain an absolute path, and it must already be
13 * Find the part of an absolute path that lies inside the work tree by
14 * dereferencing symlinks outside the work tree, for example:
15 * /dir1/repo/dir2/file (work tree is /dir1/repo) -> dir2/file
16 * /dir/file (work tree is /) -> dir/file
17 * /dir/symlink1/symlink2 (symlink1 points to work tree) -> symlink2
18 * /dir/repolink/file (repolink points to /dir/repo) -> file
19 * /dir/repo (exactly equal to work tree) -> (empty string)
21 static int abspath_part_inside_repo(char *path
)
27 const char *work_tree
= get_git_work_tree();
31 wtlen
= strlen(work_tree
);
33 off
= offset_1st_component(path
);
35 /* check if work tree is already the prefix */
36 if (wtlen
<= len
&& !strncmp(path
, work_tree
, wtlen
)) {
37 if (path
[wtlen
] == '/') {
38 memmove(path
, path
+ wtlen
+ 1, len
- wtlen
);
40 } else if (path
[wtlen
- 1] == '/' || path
[wtlen
] == '\0') {
41 /* work tree is the root, or the whole path */
42 memmove(path
, path
+ wtlen
, len
- wtlen
+ 1);
45 /* work tree might match beginning of a symlink to work tree */
51 /* check each '/'-terminated level */
56 if (strcmp(real_path(path0
), work_tree
) == 0) {
57 memmove(path0
, path
+ 1, len
- (path
- path0
));
64 /* check whole path */
65 if (strcmp(real_path(path0
), work_tree
) == 0) {
74 * Normalize "path", prepending the "prefix" for relative paths. If
75 * remaining_prefix is not NULL, return the actual prefix still
76 * remains in the path. For example, prefix = sub1/sub2/ and path is
78 * foo -> sub1/sub2/foo (full prefix)
79 * ../foo -> sub1/foo (remaining prefix is sub1/)
80 * ../../bar -> bar (no remaining prefix)
81 * ../../sub1/sub2/foo -> sub1/sub2/foo (but no remaining prefix)
82 * `pwd`/../bar -> sub1/bar (no remaining prefix)
84 char *prefix_path_gently(const char *prefix
, int len
,
85 int *remaining_prefix
, const char *path
)
87 const char *orig
= path
;
89 if (is_absolute_path(orig
)) {
90 sanitized
= xmalloc(strlen(path
) + 1);
92 *remaining_prefix
= 0;
93 if (normalize_path_copy_len(sanitized
, path
, remaining_prefix
)) {
97 if (abspath_part_inside_repo(sanitized
)) {
102 sanitized
= xstrfmt("%.*s%s", len
, len
? prefix
: "", path
);
103 if (remaining_prefix
)
104 *remaining_prefix
= len
;
105 if (normalize_path_copy_len(sanitized
, sanitized
, remaining_prefix
)) {
113 char *prefix_path(const char *prefix
, int len
, const char *path
)
115 char *r
= prefix_path_gently(prefix
, len
, NULL
, path
);
117 die("'%s' is outside repository", path
);
121 int path_inside_repo(const char *prefix
, const char *path
)
123 int len
= prefix
? strlen(prefix
) : 0;
124 char *r
= prefix_path_gently(prefix
, len
, NULL
, path
);
132 int check_filename(const char *prefix
, const char *arg
)
137 if (starts_with(arg
, ":/")) {
138 if (arg
[2] == '\0') /* ":/" is root dir, always exists */
141 } else if (!no_wildcard(arg
))
144 name
= prefix_filename(prefix
, strlen(prefix
), arg
);
147 if (!lstat(name
, &st
))
148 return 1; /* file exists */
149 if (errno
== ENOENT
|| errno
== ENOTDIR
)
150 return 0; /* file does not exist */
151 die_errno("failed to stat '%s'", arg
);
154 static void NORETURN
die_verify_filename(const char *prefix
,
156 int diagnose_misspelt_rev
)
158 if (!diagnose_misspelt_rev
)
159 die("%s: no such path in the working tree.\n"
160 "Use 'git <command> -- <path>...' to specify paths that do not exist locally.",
163 * Saying "'(icase)foo' does not exist in the index" when the
164 * user gave us ":(icase)foo" is just stupid. A magic pathspec
165 * begins with a colon and is followed by a non-alnum; do not
166 * let maybe_die_on_misspelt_object_name() even trigger.
168 if (!(arg
[0] == ':' && !isalnum(arg
[1])))
169 maybe_die_on_misspelt_object_name(arg
, prefix
);
171 /* ... or fall back the most general message. */
172 die("ambiguous argument '%s': unknown revision or path not in the working tree.\n"
173 "Use '--' to separate paths from revisions, like this:\n"
174 "'git <command> [<revision>...] -- [<file>...]'", arg
);
179 * Verify a filename that we got as an argument for a pathspec
180 * entry. Note that a filename that begins with "-" never verifies
181 * as true, because even if such a filename were to exist, we want
182 * it to be preceded by the "--" marker (or we want the user to
183 * use a format like "./-filename")
185 * The "diagnose_misspelt_rev" is used to provide a user-friendly
186 * diagnosis when dying upon finding that "name" is not a pathname.
187 * If set to 1, the diagnosis will try to diagnose "name" as an
188 * invalid object name (e.g. HEAD:foo). If set to 0, the diagnosis
189 * will only complain about an inexisting file.
191 * This function is typically called to check that a "file or rev"
192 * argument is unambiguous. In this case, the caller will want
193 * diagnose_misspelt_rev == 1 when verifying the first non-rev
194 * argument (which could have been a revision), and
195 * diagnose_misspelt_rev == 0 for the next ones (because we already
196 * saw a filename, there's not ambiguity anymore).
198 void verify_filename(const char *prefix
,
200 int diagnose_misspelt_rev
)
203 die("bad flag '%s' used after filename", arg
);
204 if (check_filename(prefix
, arg
))
206 die_verify_filename(prefix
, arg
, diagnose_misspelt_rev
);
210 * Opposite of the above: the command line did not have -- marker
211 * and we parsed the arg as a refname. It should not be interpretable
214 void verify_non_filename(const char *prefix
, const char *arg
)
216 if (!is_inside_work_tree() || is_inside_git_dir())
220 if (!check_filename(prefix
, arg
))
222 die("ambiguous argument '%s': both revision and filename\n"
223 "Use '--' to separate paths from revisions, like this:\n"
224 "'git <command> [<revision>...] -- [<file>...]'", arg
);
227 int get_common_dir(struct strbuf
*sb
, const char *gitdir
)
229 struct strbuf data
= STRBUF_INIT
;
230 struct strbuf path
= STRBUF_INIT
;
231 const char *git_common_dir
= getenv(GIT_COMMON_DIR_ENVIRONMENT
);
233 if (git_common_dir
) {
234 strbuf_addstr(sb
, git_common_dir
);
237 strbuf_addf(&path
, "%s/commondir", gitdir
);
238 if (file_exists(path
.buf
)) {
239 if (strbuf_read_file(&data
, path
.buf
, 0) <= 0)
240 die_errno(_("failed to read %s"), path
.buf
);
241 while (data
.len
&& (data
.buf
[data
.len
- 1] == '\n' ||
242 data
.buf
[data
.len
- 1] == '\r'))
244 data
.buf
[data
.len
] = '\0';
246 if (!is_absolute_path(data
.buf
))
247 strbuf_addf(&path
, "%s/", gitdir
);
248 strbuf_addbuf(&path
, &data
);
249 strbuf_addstr(sb
, real_path(path
.buf
));
252 strbuf_addstr(sb
, gitdir
);
253 strbuf_release(&data
);
254 strbuf_release(&path
);
259 * Test if it looks like we're at a git directory.
262 * - either an objects/ directory _or_ the proper
263 * GIT_OBJECT_DIRECTORY environment variable
264 * - a refs/ directory
265 * - either a HEAD symlink or a HEAD file that is formatted as
266 * a proper "ref:", or a regular file HEAD that has a properly
267 * formatted sha1 object name.
269 int is_git_directory(const char *suspect
)
271 struct strbuf path
= STRBUF_INIT
;
275 /* Check worktree-related signatures */
276 strbuf_addf(&path
, "%s/HEAD", suspect
);
277 if (validate_headref(path
.buf
))
281 get_common_dir(&path
, suspect
);
284 /* Check non-worktree-related signatures */
285 if (getenv(DB_ENVIRONMENT
)) {
286 if (access(getenv(DB_ENVIRONMENT
), X_OK
))
290 strbuf_setlen(&path
, len
);
291 strbuf_addstr(&path
, "/objects");
292 if (access(path
.buf
, X_OK
))
296 strbuf_setlen(&path
, len
);
297 strbuf_addstr(&path
, "/refs");
298 if (access(path
.buf
, X_OK
))
303 strbuf_release(&path
);
307 int is_inside_git_dir(void)
309 if (inside_git_dir
< 0)
310 inside_git_dir
= is_inside_dir(get_git_dir());
311 return inside_git_dir
;
314 int is_inside_work_tree(void)
316 if (inside_work_tree
< 0)
317 inside_work_tree
= is_inside_dir(get_git_work_tree());
318 return inside_work_tree
;
321 void setup_work_tree(void)
323 const char *work_tree
, *git_dir
;
324 static int initialized
= 0;
329 if (work_tree_config_is_bogus
)
330 die("unable to set up work tree using invalid config");
332 work_tree
= get_git_work_tree();
333 git_dir
= get_git_dir();
334 if (!is_absolute_path(git_dir
))
335 git_dir
= real_path(get_git_dir());
336 if (!work_tree
|| chdir(work_tree
))
337 die("This operation must be run in a work tree");
340 * Make sure subsequent git processes find correct worktree
341 * if $GIT_WORK_TREE is set relative
343 if (getenv(GIT_WORK_TREE_ENVIRONMENT
))
344 setenv(GIT_WORK_TREE_ENVIRONMENT
, ".", 1);
346 set_git_dir(remove_leading_path(git_dir
, work_tree
));
350 static int check_repo_format(const char *var
, const char *value
, void *cb
)
352 if (strcmp(var
, "core.repositoryformatversion") == 0)
353 repository_format_version
= git_config_int(var
, value
);
354 else if (strcmp(var
, "core.sharedrepository") == 0)
355 shared_repository
= git_config_perm(var
, value
);
359 static int check_repository_format_gently(const char *gitdir
, int *nongit_ok
)
361 struct strbuf sb
= STRBUF_INIT
;
362 const char *repo_config
;
366 if (get_common_dir(&sb
, gitdir
))
367 fn
= check_repo_format
;
369 fn
= check_repository_format_version
;
370 strbuf_addstr(&sb
, "/config");
371 repo_config
= sb
.buf
;
374 * git_config() can't be used here because it calls git_pathdup()
375 * to get $GIT_CONFIG/config. That call will make setup_git_env()
376 * set git_dir to ".git".
378 * We are in gitdir setup, no git dir has been found useable yet.
379 * Use a gentler version of git_config() to check if this repo
382 git_config_early(fn
, NULL
, repo_config
);
383 if (GIT_REPO_VERSION
< repository_format_version
) {
385 die ("Expected git repo version <= %d, found %d",
386 GIT_REPO_VERSION
, repository_format_version
);
387 warning("Expected git repo version <= %d, found %d",
388 GIT_REPO_VERSION
, repository_format_version
);
389 warning("Please upgrade Git");
397 static void update_linked_gitdir(const char *gitfile
, const char *gitdir
)
399 struct strbuf path
= STRBUF_INIT
;
402 strbuf_addf(&path
, "%s/gitdir", gitdir
);
403 if (stat(path
.buf
, &st
) || st
.st_mtime
+ 24 * 3600 < time(NULL
))
404 write_file(path
.buf
, "%s", gitfile
);
405 strbuf_release(&path
);
409 * Try to read the location of the git directory from the .git file,
410 * return path to git directory if found.
412 * On failure, if return_error_code is not NULL, return_error_code
413 * will be set to an error code and NULL will be returned. If
414 * return_error_code is NULL the function will die instead (for most
417 const char *read_gitfile_gently(const char *path
, int *return_error_code
)
419 const int max_file_size
= 1 << 20; /* 1MB */
428 if (stat(path
, &st
)) {
429 error_code
= READ_GITFILE_ERR_STAT_FAILED
;
432 if (!S_ISREG(st
.st_mode
)) {
433 error_code
= READ_GITFILE_ERR_NOT_A_FILE
;
436 if (st
.st_size
> max_file_size
) {
437 error_code
= READ_GITFILE_ERR_TOO_LARGE
;
440 fd
= open(path
, O_RDONLY
);
442 error_code
= READ_GITFILE_ERR_OPEN_FAILED
;
445 buf
= xmalloc(st
.st_size
+ 1);
446 len
= read_in_full(fd
, buf
, st
.st_size
);
448 if (len
!= st
.st_size
) {
449 error_code
= READ_GITFILE_ERR_READ_FAILED
;
453 if (!starts_with(buf
, "gitdir: ")) {
454 error_code
= READ_GITFILE_ERR_INVALID_FORMAT
;
457 while (buf
[len
- 1] == '\n' || buf
[len
- 1] == '\r')
460 error_code
= READ_GITFILE_ERR_NO_PATH
;
466 if (!is_absolute_path(dir
) && (slash
= strrchr(path
, '/'))) {
467 size_t pathlen
= slash
+1 - path
;
468 dir
= xstrfmt("%.*s%.*s", (int)pathlen
, path
,
469 (int)(len
- 8), buf
+ 8);
473 if (!is_git_directory(dir
)) {
474 error_code
= READ_GITFILE_ERR_NOT_A_REPO
;
477 update_linked_gitdir(path
, dir
);
478 path
= real_path(dir
);
481 if (return_error_code
)
482 *return_error_code
= error_code
;
483 else if (error_code
) {
484 switch (error_code
) {
485 case READ_GITFILE_ERR_STAT_FAILED
:
486 case READ_GITFILE_ERR_NOT_A_FILE
:
487 /* non-fatal; follow return path */
489 case READ_GITFILE_ERR_OPEN_FAILED
:
490 die_errno("Error opening '%s'", path
);
491 case READ_GITFILE_ERR_TOO_LARGE
:
492 die("Too large to be a .git file: '%s'", path
);
493 case READ_GITFILE_ERR_READ_FAILED
:
494 die("Error reading %s", path
);
495 case READ_GITFILE_ERR_INVALID_FORMAT
:
496 die("Invalid gitfile format: %s", path
);
497 case READ_GITFILE_ERR_NO_PATH
:
498 die("No path in gitfile: %s", path
);
499 case READ_GITFILE_ERR_NOT_A_REPO
:
500 die("Not a git repository: %s", dir
);
507 return error_code
? NULL
: path
;
510 static const char *setup_explicit_git_dir(const char *gitdirenv
,
514 const char *work_tree_env
= getenv(GIT_WORK_TREE_ENVIRONMENT
);
515 const char *worktree
;
519 if (PATH_MAX
- 40 < strlen(gitdirenv
))
520 die("'$%s' too big", GIT_DIR_ENVIRONMENT
);
522 gitfile
= (char*)read_gitfile(gitdirenv
);
524 gitfile
= xstrdup(gitfile
);
528 if (!is_git_directory(gitdirenv
)) {
534 die("Not a git repository: '%s'", gitdirenv
);
537 if (check_repository_format_gently(gitdirenv
, nongit_ok
)) {
542 /* #3, #7, #11, #15, #19, #23, #27, #31 (see t1510) */
544 set_git_work_tree(work_tree_env
);
545 else if (is_bare_repository_cfg
> 0) {
546 if (git_work_tree_cfg
) {
548 warning("core.bare and core.worktree do not make sense");
549 work_tree_config_is_bogus
= 1;
553 set_git_dir(gitdirenv
);
557 else if (git_work_tree_cfg
) { /* #6, #14 */
558 if (is_absolute_path(git_work_tree_cfg
))
559 set_git_work_tree(git_work_tree_cfg
);
562 if (chdir(gitdirenv
))
563 die_errno("Could not chdir to '%s'", gitdirenv
);
564 if (chdir(git_work_tree_cfg
))
565 die_errno("Could not chdir to '%s'", git_work_tree_cfg
);
566 core_worktree
= xgetcwd();
568 die_errno("Could not come back to cwd");
569 set_git_work_tree(core_worktree
);
573 else if (!git_env_bool(GIT_IMPLICIT_WORK_TREE_ENVIRONMENT
, 1)) {
575 set_git_dir(gitdirenv
);
580 set_git_work_tree(".");
582 /* set_git_work_tree() must have been called by now */
583 worktree
= get_git_work_tree();
585 /* both get_git_work_tree() and cwd are already normalized */
586 if (!strcmp(cwd
->buf
, worktree
)) { /* cwd == worktree */
587 set_git_dir(gitdirenv
);
592 offset
= dir_inside_of(cwd
->buf
, worktree
);
593 if (offset
>= 0) { /* cwd inside worktree? */
594 set_git_dir(real_path(gitdirenv
));
596 die_errno("Could not chdir to '%s'", worktree
);
597 strbuf_addch(cwd
, '/');
599 return cwd
->buf
+ offset
;
602 /* cwd outside worktree */
603 set_git_dir(gitdirenv
);
608 static const char *setup_discovered_git_dir(const char *gitdir
,
609 struct strbuf
*cwd
, int offset
,
612 if (check_repository_format_gently(gitdir
, nongit_ok
))
615 /* --work-tree is set without --git-dir; use discovered one */
616 if (getenv(GIT_WORK_TREE_ENVIRONMENT
) || git_work_tree_cfg
) {
617 if (offset
!= cwd
->len
&& !is_absolute_path(gitdir
))
618 gitdir
= xstrdup(real_path(gitdir
));
620 die_errno("Could not come back to cwd");
621 return setup_explicit_git_dir(gitdir
, cwd
, nongit_ok
);
624 /* #16.2, #17.2, #20.2, #21.2, #24, #25, #28, #29 (see t1510) */
625 if (is_bare_repository_cfg
> 0) {
626 set_git_dir(offset
== cwd
->len
? gitdir
: real_path(gitdir
));
628 die_errno("Could not come back to cwd");
632 /* #0, #1, #5, #8, #9, #12, #13 */
633 set_git_work_tree(".");
634 if (strcmp(gitdir
, DEFAULT_GIT_DIR_ENVIRONMENT
))
637 inside_work_tree
= 1;
638 if (offset
== cwd
->len
)
641 /* Make "offset" point to past the '/', and add a '/' at the end */
643 strbuf_addch(cwd
, '/');
644 return cwd
->buf
+ offset
;
647 /* #16.1, #17.1, #20.1, #21.1, #22.1 (see t1510) */
648 static const char *setup_bare_git_dir(struct strbuf
*cwd
, int offset
,
653 if (check_repository_format_gently(".", nongit_ok
))
656 setenv(GIT_IMPLICIT_WORK_TREE_ENVIRONMENT
, "0", 1);
658 /* --work-tree is set without --git-dir; use discovered one */
659 if (getenv(GIT_WORK_TREE_ENVIRONMENT
) || git_work_tree_cfg
) {
662 gitdir
= offset
== cwd
->len
? "." : xmemdupz(cwd
->buf
, offset
);
664 die_errno("Could not come back to cwd");
665 return setup_explicit_git_dir(gitdir
, cwd
, nongit_ok
);
669 inside_work_tree
= 0;
670 if (offset
!= cwd
->len
) {
672 die_errno("Cannot come back to cwd");
673 root_len
= offset_1st_component(cwd
->buf
);
674 strbuf_setlen(cwd
, offset
> root_len
? offset
: root_len
);
675 set_git_dir(cwd
->buf
);
682 static const char *setup_nongit(const char *cwd
, int *nongit_ok
)
685 die("Not a git repository (or any of the parent directories): %s", DEFAULT_GIT_DIR_ENVIRONMENT
);
687 die_errno("Cannot come back to cwd");
692 static dev_t
get_device_or_die(const char *path
, const char *prefix
, int prefix_len
)
695 if (stat(path
, &buf
)) {
696 die_errno("failed to stat '%*s%s%s'",
698 prefix
? prefix
: "",
699 prefix
? "/" : "", path
);
705 * A "string_list_each_func_t" function that canonicalizes an entry
706 * from GIT_CEILING_DIRECTORIES using real_path_if_valid(), or
707 * discards it if unusable. The presence of an empty entry in
708 * GIT_CEILING_DIRECTORIES turns off canonicalization for all
709 * subsequent entries.
711 static int canonicalize_ceiling_entry(struct string_list_item
*item
,
714 int *empty_entry_found
= cb_data
;
715 char *ceil
= item
->string
;
718 *empty_entry_found
= 1;
720 } else if (!is_absolute_path(ceil
)) {
722 } else if (*empty_entry_found
) {
723 /* Keep entry but do not canonicalize it */
726 const char *real_path
= real_path_if_valid(ceil
);
730 item
->string
= xstrdup(real_path
);
736 * We cannot decide in this function whether we are in the work tree or
737 * not, since the config can only be read _after_ this function was called.
739 static const char *setup_git_directory_gently_1(int *nongit_ok
)
741 const char *env_ceiling_dirs
= getenv(CEILING_DIRECTORIES_ENVIRONMENT
);
742 struct string_list ceiling_dirs
= STRING_LIST_INIT_DUP
;
743 static struct strbuf cwd
= STRBUF_INIT
;
744 const char *gitdirenv
, *ret
;
746 int offset
, offset_parent
, ceil_offset
= -1;
747 dev_t current_device
= 0;
748 int one_filesystem
= 1;
751 * We may have read an incomplete configuration before
752 * setting-up the git directory. If so, clear the cache so
753 * that the next queries to the configuration reload complete
754 * configuration (including the per-repo config file that we
755 * ignored previously).
760 * Let's assume that we are in a git repository.
761 * If it turns out later that we are somewhere else, the value will be
762 * updated accordingly.
767 if (strbuf_getcwd(&cwd
))
768 die_errno("Unable to read current working directory");
772 * If GIT_DIR is set explicitly, we're not going
773 * to do any discovery, but we still do repository
776 gitdirenv
= getenv(GIT_DIR_ENVIRONMENT
);
778 return setup_explicit_git_dir(gitdirenv
, &cwd
, nongit_ok
);
780 if (env_ceiling_dirs
) {
781 int empty_entry_found
= 0;
783 string_list_split(&ceiling_dirs
, env_ceiling_dirs
, PATH_SEP
, -1);
784 filter_string_list(&ceiling_dirs
, 0,
785 canonicalize_ceiling_entry
, &empty_entry_found
);
786 ceil_offset
= longest_ancestor_length(cwd
.buf
, &ceiling_dirs
);
787 string_list_clear(&ceiling_dirs
, 0);
790 if (ceil_offset
< 0 && has_dos_drive_prefix(cwd
.buf
))
794 * Test in the following order (relative to the cwd):
795 * - .git (file containing "gitdir: <path>")
804 one_filesystem
= !git_env_bool("GIT_DISCOVERY_ACROSS_FILESYSTEM", 0);
806 current_device
= get_device_or_die(".", NULL
, 0);
808 gitfile
= (char*)read_gitfile(DEFAULT_GIT_DIR_ENVIRONMENT
);
810 gitdirenv
= gitfile
= xstrdup(gitfile
);
812 if (is_git_directory(DEFAULT_GIT_DIR_ENVIRONMENT
))
813 gitdirenv
= DEFAULT_GIT_DIR_ENVIRONMENT
;
817 ret
= setup_discovered_git_dir(gitdirenv
,
825 if (is_git_directory("."))
826 return setup_bare_git_dir(&cwd
, offset
, nongit_ok
);
828 offset_parent
= offset
;
829 while (--offset_parent
> ceil_offset
&& cwd
.buf
[offset_parent
] != '/');
830 if (offset_parent
<= ceil_offset
)
831 return setup_nongit(cwd
.buf
, nongit_ok
);
832 if (one_filesystem
) {
833 dev_t parent_device
= get_device_or_die("..", cwd
.buf
,
835 if (parent_device
!= current_device
) {
838 die_errno("Cannot come back to cwd");
842 strbuf_setlen(&cwd
, offset
);
843 die("Not a git repository (or any parent up to mount point %s)\n"
844 "Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).",
849 strbuf_setlen(&cwd
, offset
);
850 die_errno("Cannot change to '%s/..'", cwd
.buf
);
852 offset
= offset_parent
;
856 const char *setup_git_directory_gently(int *nongit_ok
)
860 prefix
= setup_git_directory_gently_1(nongit_ok
);
862 setenv(GIT_PREFIX_ENVIRONMENT
, prefix
, 1);
864 setenv(GIT_PREFIX_ENVIRONMENT
, "", 1);
867 startup_info
->have_repository
= !nongit_ok
|| !*nongit_ok
;
868 startup_info
->prefix
= prefix
;
873 int git_config_perm(const char *var
, const char *value
)
881 if (!strcmp(value
, "umask"))
883 if (!strcmp(value
, "group"))
885 if (!strcmp(value
, "all") ||
886 !strcmp(value
, "world") ||
887 !strcmp(value
, "everybody"))
888 return PERM_EVERYBODY
;
890 /* Parse octal numbers */
891 i
= strtol(value
, &endptr
, 8);
893 /* If not an octal number, maybe true/false? */
895 return git_config_bool(var
, value
) ? PERM_GROUP
: PERM_UMASK
;
898 * Treat values 0, 1 and 2 as compatibility cases, otherwise it is
899 * a chmod value to restrict to.
902 case PERM_UMASK
: /* 0 */
904 case OLD_PERM_GROUP
: /* 1 */
906 case OLD_PERM_EVERYBODY
: /* 2 */
907 return PERM_EVERYBODY
;
910 /* A filemode value was given: 0xxx */
912 if ((i
& 0600) != 0600)
913 die("Problem with core.sharedRepository filemode value "
914 "(0%.3o).\nThe owner of files must always have "
915 "read and write permissions.", i
);
918 * Mask filemode value. Others can not get write permission.
919 * x flags for directories are handled separately.
924 int check_repository_format_version(const char *var
, const char *value
, void *cb
)
926 int ret
= check_repo_format(var
, value
, cb
);
929 if (strcmp(var
, "core.bare") == 0) {
930 is_bare_repository_cfg
= git_config_bool(var
, value
);
931 if (is_bare_repository_cfg
== 1)
932 inside_work_tree
= -1;
933 } else if (strcmp(var
, "core.worktree") == 0) {
935 return config_error_nonbool(var
);
936 free(git_work_tree_cfg
);
937 git_work_tree_cfg
= xstrdup(value
);
938 inside_work_tree
= -1;
943 int check_repository_format(void)
945 return check_repository_format_gently(get_git_dir(), NULL
);
949 * Returns the "prefix", a path to the current working directory
950 * relative to the work tree root, or NULL, if the current working
951 * directory is not a strict subdirectory of the work tree root. The
952 * prefix always ends with a '/' character.
954 const char *setup_git_directory(void)
956 return setup_git_directory_gently(NULL
);
959 const char *resolve_gitdir(const char *suspect
)
961 if (is_git_directory(suspect
))
963 return read_gitfile(suspect
);
966 /* if any standard file descriptor is missing open it to /dev/null */
967 void sanitize_stdfds(void)
969 int fd
= open("/dev/null", O_RDWR
, 0);
970 while (fd
!= -1 && fd
< 2)
973 die_errno("open /dev/null or dup failed");
980 #ifdef NO_POSIX_GOODIES
988 die_errno("fork failed");
993 die_errno("setsid failed");