3 #include "string-list.h"
5 static int inside_git_dir
= -1;
6 static int inside_work_tree
= -1;
9 * The input parameter must contain an absolute path, and it must already be
12 * Find the part of an absolute path that lies inside the work tree by
13 * dereferencing symlinks outside the work tree, for example:
14 * /dir1/repo/dir2/file (work tree is /dir1/repo) -> dir2/file
15 * /dir/file (work tree is /) -> dir/file
16 * /dir/symlink1/symlink2 (symlink1 points to work tree) -> symlink2
17 * /dir/repolink/file (repolink points to /dir/repo) -> file
18 * /dir/repo (exactly equal to work tree) -> (empty string)
20 static int abspath_part_inside_repo(char *path
)
26 const char *work_tree
= get_git_work_tree();
30 wtlen
= strlen(work_tree
);
32 off
= offset_1st_component(path
);
34 /* check if work tree is already the prefix */
35 if (wtlen
<= len
&& !strncmp(path
, work_tree
, wtlen
)) {
36 if (path
[wtlen
] == '/') {
37 memmove(path
, path
+ wtlen
+ 1, len
- wtlen
);
39 } else if (path
[wtlen
- 1] == '/' || path
[wtlen
] == '\0') {
40 /* work tree is the root, or the whole path */
41 memmove(path
, path
+ wtlen
, len
- wtlen
+ 1);
44 /* work tree might match beginning of a symlink to work tree */
50 /* check each '/'-terminated level */
55 if (strcmp(real_path(path0
), work_tree
) == 0) {
56 memmove(path0
, path
+ 1, len
- (path
- path0
));
63 /* check whole path */
64 if (strcmp(real_path(path0
), work_tree
) == 0) {
73 * Normalize "path", prepending the "prefix" for relative paths. If
74 * remaining_prefix is not NULL, return the actual prefix still
75 * remains in the path. For example, prefix = sub1/sub2/ and path is
77 * foo -> sub1/sub2/foo (full prefix)
78 * ../foo -> sub1/foo (remaining prefix is sub1/)
79 * ../../bar -> bar (no remaining prefix)
80 * ../../sub1/sub2/foo -> sub1/sub2/foo (but no remaining prefix)
81 * `pwd`/../bar -> sub1/bar (no remaining prefix)
83 char *prefix_path_gently(const char *prefix
, int len
,
84 int *remaining_prefix
, const char *path
)
86 const char *orig
= path
;
88 if (is_absolute_path(orig
)) {
89 sanitized
= xmalloc(strlen(path
) + 1);
91 *remaining_prefix
= 0;
92 if (normalize_path_copy_len(sanitized
, path
, remaining_prefix
)) {
96 if (abspath_part_inside_repo(sanitized
)) {
101 sanitized
= xmalloc(len
+ strlen(path
) + 1);
103 memcpy(sanitized
, prefix
, len
);
104 strcpy(sanitized
+ len
, path
);
105 if (remaining_prefix
)
106 *remaining_prefix
= len
;
107 if (normalize_path_copy_len(sanitized
, sanitized
, remaining_prefix
)) {
115 char *prefix_path(const char *prefix
, int len
, const char *path
)
117 char *r
= prefix_path_gently(prefix
, len
, NULL
, path
);
119 die("'%s' is outside repository", path
);
123 int path_inside_repo(const char *prefix
, const char *path
)
125 int len
= prefix
? strlen(prefix
) : 0;
126 char *r
= prefix_path_gently(prefix
, len
, NULL
, path
);
134 int check_filename(const char *prefix
, const char *arg
)
139 if (starts_with(arg
, ":/")) {
140 if (arg
[2] == '\0') /* ":/" is root dir, always exists */
143 } else if (!no_wildcard(arg
))
146 name
= prefix_filename(prefix
, strlen(prefix
), arg
);
149 if (!lstat(name
, &st
))
150 return 1; /* file exists */
151 if (errno
== ENOENT
|| errno
== ENOTDIR
)
152 return 0; /* file does not exist */
153 die_errno("failed to stat '%s'", arg
);
156 static void NORETURN
die_verify_filename(const char *prefix
,
158 int diagnose_misspelt_rev
)
160 if (!diagnose_misspelt_rev
)
161 die("%s: no such path in the working tree.\n"
162 "Use 'git <command> -- <path>...' to specify paths that do not exist locally.",
165 * Saying "'(icase)foo' does not exist in the index" when the
166 * user gave us ":(icase)foo" is just stupid. A magic pathspec
167 * begins with a colon and is followed by a non-alnum; do not
168 * let maybe_die_on_misspelt_object_name() even trigger.
170 if (!(arg
[0] == ':' && !isalnum(arg
[1])))
171 maybe_die_on_misspelt_object_name(arg
, prefix
);
173 /* ... or fall back the most general message. */
174 die("ambiguous argument '%s': unknown revision or path not in the working tree.\n"
175 "Use '--' to separate paths from revisions, like this:\n"
176 "'git <command> [<revision>...] -- [<file>...]'", arg
);
181 * Verify a filename that we got as an argument for a pathspec
182 * entry. Note that a filename that begins with "-" never verifies
183 * as true, because even if such a filename were to exist, we want
184 * it to be preceded by the "--" marker (or we want the user to
185 * use a format like "./-filename")
187 * The "diagnose_misspelt_rev" is used to provide a user-friendly
188 * diagnosis when dying upon finding that "name" is not a pathname.
189 * If set to 1, the diagnosis will try to diagnose "name" as an
190 * invalid object name (e.g. HEAD:foo). If set to 0, the diagnosis
191 * will only complain about an inexisting file.
193 * This function is typically called to check that a "file or rev"
194 * argument is unambiguous. In this case, the caller will want
195 * diagnose_misspelt_rev == 1 when verifying the first non-rev
196 * argument (which could have been a revision), and
197 * diagnose_misspelt_rev == 0 for the next ones (because we already
198 * saw a filename, there's not ambiguity anymore).
200 void verify_filename(const char *prefix
,
202 int diagnose_misspelt_rev
)
205 die("bad flag '%s' used after filename", arg
);
206 if (check_filename(prefix
, arg
))
208 die_verify_filename(prefix
, arg
, diagnose_misspelt_rev
);
212 * Opposite of the above: the command line did not have -- marker
213 * and we parsed the arg as a refname. It should not be interpretable
216 void verify_non_filename(const char *prefix
, const char *arg
)
218 if (!is_inside_work_tree() || is_inside_git_dir())
222 if (!check_filename(prefix
, arg
))
224 die("ambiguous argument '%s': both revision and filename\n"
225 "Use '--' to separate paths from revisions, like this:\n"
226 "'git <command> [<revision>...] -- [<file>...]'", arg
);
229 int get_common_dir(struct strbuf
*sb
, const char *gitdir
)
231 struct strbuf data
= STRBUF_INIT
;
232 struct strbuf path
= STRBUF_INIT
;
233 const char *git_common_dir
= getenv(GIT_COMMON_DIR_ENVIRONMENT
);
235 if (git_common_dir
) {
236 strbuf_addstr(sb
, git_common_dir
);
239 strbuf_addf(&path
, "%s/commondir", gitdir
);
240 if (file_exists(path
.buf
)) {
241 if (strbuf_read_file(&data
, path
.buf
, 0) <= 0)
242 die_errno(_("failed to read %s"), path
.buf
);
243 while (data
.len
&& (data
.buf
[data
.len
- 1] == '\n' ||
244 data
.buf
[data
.len
- 1] == '\r'))
246 data
.buf
[data
.len
] = '\0';
248 if (!is_absolute_path(data
.buf
))
249 strbuf_addf(&path
, "%s/", gitdir
);
250 strbuf_addbuf(&path
, &data
);
251 strbuf_addstr(sb
, real_path(path
.buf
));
254 strbuf_addstr(sb
, gitdir
);
255 strbuf_release(&data
);
256 strbuf_release(&path
);
261 * Test if it looks like we're at a git directory.
264 * - either an objects/ directory _or_ the proper
265 * GIT_OBJECT_DIRECTORY environment variable
266 * - a refs/ directory
267 * - either a HEAD symlink or a HEAD file that is formatted as
268 * a proper "ref:", or a regular file HEAD that has a properly
269 * formatted sha1 object name.
271 int is_git_directory(const char *suspect
)
273 struct strbuf path
= STRBUF_INIT
;
277 /* Check worktree-related signatures */
278 strbuf_addf(&path
, "%s/HEAD", suspect
);
279 if (validate_headref(path
.buf
))
283 get_common_dir(&path
, suspect
);
286 /* Check non-worktree-related signatures */
287 if (getenv(DB_ENVIRONMENT
)) {
288 if (access(getenv(DB_ENVIRONMENT
), X_OK
))
292 strbuf_setlen(&path
, len
);
293 strbuf_addstr(&path
, "/objects");
294 if (access(path
.buf
, X_OK
))
298 strbuf_setlen(&path
, len
);
299 strbuf_addstr(&path
, "/refs");
300 if (access(path
.buf
, X_OK
))
305 strbuf_release(&path
);
309 int is_inside_git_dir(void)
311 if (inside_git_dir
< 0)
312 inside_git_dir
= is_inside_dir(get_git_dir());
313 return inside_git_dir
;
316 int is_inside_work_tree(void)
318 if (inside_work_tree
< 0)
319 inside_work_tree
= is_inside_dir(get_git_work_tree());
320 return inside_work_tree
;
323 void setup_work_tree(void)
325 const char *work_tree
, *git_dir
;
326 static int initialized
= 0;
330 work_tree
= get_git_work_tree();
331 git_dir
= get_git_dir();
332 if (!is_absolute_path(git_dir
))
333 git_dir
= real_path(get_git_dir());
334 if (!work_tree
|| chdir(work_tree
))
335 die("This operation must be run in a work tree");
338 * Make sure subsequent git processes find correct worktree
339 * if $GIT_WORK_TREE is set relative
341 if (getenv(GIT_WORK_TREE_ENVIRONMENT
))
342 setenv(GIT_WORK_TREE_ENVIRONMENT
, ".", 1);
344 set_git_dir(remove_leading_path(git_dir
, work_tree
));
348 static int check_repo_format(const char *var
, const char *value
, void *cb
)
350 if (strcmp(var
, "core.repositoryformatversion") == 0)
351 repository_format_version
= git_config_int(var
, value
);
352 else if (strcmp(var
, "core.sharedrepository") == 0)
353 shared_repository
= git_config_perm(var
, value
);
357 static int check_repository_format_gently(const char *gitdir
, int *nongit_ok
)
359 struct strbuf sb
= STRBUF_INIT
;
360 const char *repo_config
;
364 if (get_common_dir(&sb
, gitdir
))
365 fn
= check_repo_format
;
367 fn
= check_repository_format_version
;
368 strbuf_addstr(&sb
, "/config");
369 repo_config
= sb
.buf
;
372 * git_config() can't be used here because it calls git_pathdup()
373 * to get $GIT_CONFIG/config. That call will make setup_git_env()
374 * set git_dir to ".git".
376 * We are in gitdir setup, no git dir has been found useable yet.
377 * Use a gentler version of git_config() to check if this repo
380 git_config_early(fn
, NULL
, repo_config
);
381 if (GIT_REPO_VERSION
< repository_format_version
) {
383 die ("Expected git repo version <= %d, found %d",
384 GIT_REPO_VERSION
, repository_format_version
);
385 warning("Expected git repo version <= %d, found %d",
386 GIT_REPO_VERSION
, repository_format_version
);
387 warning("Please upgrade Git");
395 static void update_linked_gitdir(const char *gitfile
, const char *gitdir
)
397 struct strbuf path
= STRBUF_INIT
;
400 strbuf_addf(&path
, "%s/gitfile", gitdir
);
401 if (stat(path
.buf
, &st
) || st
.st_mtime
+ 24 * 3600 < time(NULL
))
402 write_file(path
.buf
, 0, "%s\n", gitfile
);
403 strbuf_release(&path
);
407 * Try to read the location of the git directory from the .git file,
408 * return path to git directory if found.
410 * On failure, if return_error_code is not NULL, return_error_code
411 * will be set to an error code and NULL will be returned. If
412 * return_error_code is NULL the function will die instead (for most
415 const char *read_gitfile_gently(const char *path
, int *return_error_code
)
425 if (stat(path
, &st
)) {
426 error_code
= READ_GITFILE_ERR_STAT_FAILED
;
429 if (!S_ISREG(st
.st_mode
)) {
430 error_code
= READ_GITFILE_ERR_NOT_A_FILE
;
433 fd
= open(path
, O_RDONLY
);
435 error_code
= READ_GITFILE_ERR_OPEN_FAILED
;
438 buf
= xmalloc(st
.st_size
+ 1);
439 len
= read_in_full(fd
, buf
, st
.st_size
);
441 if (len
!= st
.st_size
) {
442 error_code
= READ_GITFILE_ERR_READ_FAILED
;
446 if (!starts_with(buf
, "gitdir: ")) {
447 error_code
= READ_GITFILE_ERR_INVALID_FORMAT
;
450 while (buf
[len
- 1] == '\n' || buf
[len
- 1] == '\r')
453 error_code
= READ_GITFILE_ERR_NO_PATH
;
459 if (!is_absolute_path(dir
) && (slash
= strrchr(path
, '/'))) {
460 size_t pathlen
= slash
+1 - path
;
461 size_t dirlen
= pathlen
+ len
- 8;
462 dir
= xmalloc(dirlen
+ 1);
463 strncpy(dir
, path
, pathlen
);
464 strncpy(dir
+ pathlen
, buf
+ 8, len
- 8);
469 if (!is_git_directory(dir
)) {
470 error_code
= READ_GITFILE_ERR_NOT_A_REPO
;
473 update_linked_gitdir(path
, dir
);
474 path
= real_path(dir
);
479 if (return_error_code
)
480 *return_error_code
= error_code
;
483 if (return_error_code
)
486 switch (error_code
) {
487 case READ_GITFILE_ERR_STAT_FAILED
:
488 case READ_GITFILE_ERR_NOT_A_FILE
:
490 case READ_GITFILE_ERR_OPEN_FAILED
:
491 die_errno("Error opening '%s'", path
);
492 case READ_GITFILE_ERR_READ_FAILED
:
493 die("Error reading %s", path
);
494 case READ_GITFILE_ERR_INVALID_FORMAT
:
495 die("Invalid gitfile format: %s", path
);
496 case READ_GITFILE_ERR_NO_PATH
:
497 die("No path in gitfile: %s", path
);
498 case READ_GITFILE_ERR_NOT_A_REPO
:
499 die("Not a git repository: %s", dir
);
508 static const char *setup_explicit_git_dir(const char *gitdirenv
,
512 const char *work_tree_env
= getenv(GIT_WORK_TREE_ENVIRONMENT
);
513 const char *worktree
;
517 if (PATH_MAX
- 40 < strlen(gitdirenv
))
518 die("'$%s' too big", GIT_DIR_ENVIRONMENT
);
520 gitfile
= (char*)read_gitfile(gitdirenv
);
522 gitfile
= xstrdup(gitfile
);
526 if (!is_git_directory(gitdirenv
)) {
532 die("Not a git repository: '%s'", gitdirenv
);
535 if (check_repository_format_gently(gitdirenv
, nongit_ok
)) {
540 /* #3, #7, #11, #15, #19, #23, #27, #31 (see t1510) */
542 set_git_work_tree(work_tree_env
);
543 else if (is_bare_repository_cfg
> 0) {
544 if (git_work_tree_cfg
) /* #22.2, #30 */
545 die("core.bare and core.worktree do not make sense");
548 set_git_dir(gitdirenv
);
552 else if (git_work_tree_cfg
) { /* #6, #14 */
553 if (is_absolute_path(git_work_tree_cfg
))
554 set_git_work_tree(git_work_tree_cfg
);
557 if (chdir(gitdirenv
))
558 die_errno("Could not chdir to '%s'", gitdirenv
);
559 if (chdir(git_work_tree_cfg
))
560 die_errno("Could not chdir to '%s'", git_work_tree_cfg
);
561 core_worktree
= xgetcwd();
563 die_errno("Could not come back to cwd");
564 set_git_work_tree(core_worktree
);
568 else if (!git_env_bool(GIT_IMPLICIT_WORK_TREE_ENVIRONMENT
, 1)) {
570 set_git_dir(gitdirenv
);
575 set_git_work_tree(".");
577 /* set_git_work_tree() must have been called by now */
578 worktree
= get_git_work_tree();
580 /* both get_git_work_tree() and cwd are already normalized */
581 if (!strcmp(cwd
->buf
, worktree
)) { /* cwd == worktree */
582 set_git_dir(gitdirenv
);
587 offset
= dir_inside_of(cwd
->buf
, worktree
);
588 if (offset
>= 0) { /* cwd inside worktree? */
589 set_git_dir(real_path(gitdirenv
));
591 die_errno("Could not chdir to '%s'", worktree
);
592 strbuf_addch(cwd
, '/');
594 return cwd
->buf
+ offset
;
597 /* cwd outside worktree */
598 set_git_dir(gitdirenv
);
603 static const char *setup_discovered_git_dir(const char *gitdir
,
604 struct strbuf
*cwd
, int offset
,
607 if (check_repository_format_gently(gitdir
, nongit_ok
))
610 /* --work-tree is set without --git-dir; use discovered one */
611 if (getenv(GIT_WORK_TREE_ENVIRONMENT
) || git_work_tree_cfg
) {
612 if (offset
!= cwd
->len
&& !is_absolute_path(gitdir
))
613 gitdir
= xstrdup(real_path(gitdir
));
615 die_errno("Could not come back to cwd");
616 return setup_explicit_git_dir(gitdir
, cwd
, nongit_ok
);
619 /* #16.2, #17.2, #20.2, #21.2, #24, #25, #28, #29 (see t1510) */
620 if (is_bare_repository_cfg
> 0) {
621 set_git_dir(offset
== cwd
->len
? gitdir
: real_path(gitdir
));
623 die_errno("Could not come back to cwd");
627 /* #0, #1, #5, #8, #9, #12, #13 */
628 set_git_work_tree(".");
629 if (strcmp(gitdir
, DEFAULT_GIT_DIR_ENVIRONMENT
))
632 inside_work_tree
= 1;
633 if (offset
== cwd
->len
)
636 /* Make "offset" point to past the '/', and add a '/' at the end */
638 strbuf_addch(cwd
, '/');
639 return cwd
->buf
+ offset
;
642 /* #16.1, #17.1, #20.1, #21.1, #22.1 (see t1510) */
643 static const char *setup_bare_git_dir(struct strbuf
*cwd
, int offset
,
648 if (check_repository_format_gently(".", nongit_ok
))
651 setenv(GIT_IMPLICIT_WORK_TREE_ENVIRONMENT
, "0", 1);
653 /* --work-tree is set without --git-dir; use discovered one */
654 if (getenv(GIT_WORK_TREE_ENVIRONMENT
) || git_work_tree_cfg
) {
657 gitdir
= offset
== cwd
->len
? "." : xmemdupz(cwd
->buf
, offset
);
659 die_errno("Could not come back to cwd");
660 return setup_explicit_git_dir(gitdir
, cwd
, nongit_ok
);
664 inside_work_tree
= 0;
665 if (offset
!= cwd
->len
) {
667 die_errno("Cannot come back to cwd");
668 root_len
= offset_1st_component(cwd
->buf
);
669 strbuf_setlen(cwd
, offset
> root_len
? offset
: root_len
);
670 set_git_dir(cwd
->buf
);
677 static const char *setup_nongit(const char *cwd
, int *nongit_ok
)
680 die("Not a git repository (or any of the parent directories): %s", DEFAULT_GIT_DIR_ENVIRONMENT
);
682 die_errno("Cannot come back to cwd");
687 static dev_t
get_device_or_die(const char *path
, const char *prefix
, int prefix_len
)
690 if (stat(path
, &buf
)) {
691 die_errno("failed to stat '%*s%s%s'",
693 prefix
? prefix
: "",
694 prefix
? "/" : "", path
);
700 * A "string_list_each_func_t" function that canonicalizes an entry
701 * from GIT_CEILING_DIRECTORIES using real_path_if_valid(), or
702 * discards it if unusable. The presence of an empty entry in
703 * GIT_CEILING_DIRECTORIES turns off canonicalization for all
704 * subsequent entries.
706 static int canonicalize_ceiling_entry(struct string_list_item
*item
,
709 int *empty_entry_found
= cb_data
;
710 char *ceil
= item
->string
;
713 *empty_entry_found
= 1;
715 } else if (!is_absolute_path(ceil
)) {
717 } else if (*empty_entry_found
) {
718 /* Keep entry but do not canonicalize it */
721 const char *real_path
= real_path_if_valid(ceil
);
725 item
->string
= xstrdup(real_path
);
731 * We cannot decide in this function whether we are in the work tree or
732 * not, since the config can only be read _after_ this function was called.
734 static const char *setup_git_directory_gently_1(int *nongit_ok
)
736 const char *env_ceiling_dirs
= getenv(CEILING_DIRECTORIES_ENVIRONMENT
);
737 struct string_list ceiling_dirs
= STRING_LIST_INIT_DUP
;
738 static struct strbuf cwd
= STRBUF_INIT
;
739 const char *gitdirenv
, *ret
;
741 int offset
, offset_parent
, ceil_offset
= -1;
742 dev_t current_device
= 0;
743 int one_filesystem
= 1;
746 * We may have read an incomplete configuration before
747 * setting-up the git directory. If so, clear the cache so
748 * that the next queries to the configuration reload complete
749 * configuration (including the per-repo config file that we
750 * ignored previously).
755 * Let's assume that we are in a git repository.
756 * If it turns out later that we are somewhere else, the value will be
757 * updated accordingly.
762 if (strbuf_getcwd(&cwd
))
763 die_errno("Unable to read current working directory");
767 * If GIT_DIR is set explicitly, we're not going
768 * to do any discovery, but we still do repository
771 gitdirenv
= getenv(GIT_DIR_ENVIRONMENT
);
773 return setup_explicit_git_dir(gitdirenv
, &cwd
, nongit_ok
);
775 if (env_ceiling_dirs
) {
776 int empty_entry_found
= 0;
778 string_list_split(&ceiling_dirs
, env_ceiling_dirs
, PATH_SEP
, -1);
779 filter_string_list(&ceiling_dirs
, 0,
780 canonicalize_ceiling_entry
, &empty_entry_found
);
781 ceil_offset
= longest_ancestor_length(cwd
.buf
, &ceiling_dirs
);
782 string_list_clear(&ceiling_dirs
, 0);
785 if (ceil_offset
< 0 && has_dos_drive_prefix(cwd
.buf
))
789 * Test in the following order (relative to the cwd):
790 * - .git (file containing "gitdir: <path>")
799 one_filesystem
= !git_env_bool("GIT_DISCOVERY_ACROSS_FILESYSTEM", 0);
801 current_device
= get_device_or_die(".", NULL
, 0);
803 gitfile
= (char*)read_gitfile(DEFAULT_GIT_DIR_ENVIRONMENT
);
805 gitdirenv
= gitfile
= xstrdup(gitfile
);
807 if (is_git_directory(DEFAULT_GIT_DIR_ENVIRONMENT
))
808 gitdirenv
= DEFAULT_GIT_DIR_ENVIRONMENT
;
812 ret
= setup_discovered_git_dir(gitdirenv
,
820 if (is_git_directory("."))
821 return setup_bare_git_dir(&cwd
, offset
, nongit_ok
);
823 offset_parent
= offset
;
824 while (--offset_parent
> ceil_offset
&& cwd
.buf
[offset_parent
] != '/');
825 if (offset_parent
<= ceil_offset
)
826 return setup_nongit(cwd
.buf
, nongit_ok
);
827 if (one_filesystem
) {
828 dev_t parent_device
= get_device_or_die("..", cwd
.buf
,
830 if (parent_device
!= current_device
) {
833 die_errno("Cannot come back to cwd");
837 strbuf_setlen(&cwd
, offset
);
838 die("Not a git repository (or any parent up to mount point %s)\n"
839 "Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).",
844 strbuf_setlen(&cwd
, offset
);
845 die_errno("Cannot change to '%s/..'", cwd
.buf
);
847 offset
= offset_parent
;
851 const char *setup_git_directory_gently(int *nongit_ok
)
855 prefix
= setup_git_directory_gently_1(nongit_ok
);
857 setenv(GIT_PREFIX_ENVIRONMENT
, prefix
, 1);
859 setenv(GIT_PREFIX_ENVIRONMENT
, "", 1);
862 startup_info
->have_repository
= !nongit_ok
|| !*nongit_ok
;
863 startup_info
->prefix
= prefix
;
868 int git_config_perm(const char *var
, const char *value
)
876 if (!strcmp(value
, "umask"))
878 if (!strcmp(value
, "group"))
880 if (!strcmp(value
, "all") ||
881 !strcmp(value
, "world") ||
882 !strcmp(value
, "everybody"))
883 return PERM_EVERYBODY
;
885 /* Parse octal numbers */
886 i
= strtol(value
, &endptr
, 8);
888 /* If not an octal number, maybe true/false? */
890 return git_config_bool(var
, value
) ? PERM_GROUP
: PERM_UMASK
;
893 * Treat values 0, 1 and 2 as compatibility cases, otherwise it is
894 * a chmod value to restrict to.
897 case PERM_UMASK
: /* 0 */
899 case OLD_PERM_GROUP
: /* 1 */
901 case OLD_PERM_EVERYBODY
: /* 2 */
902 return PERM_EVERYBODY
;
905 /* A filemode value was given: 0xxx */
907 if ((i
& 0600) != 0600)
908 die("Problem with core.sharedRepository filemode value "
909 "(0%.3o).\nThe owner of files must always have "
910 "read and write permissions.", i
);
913 * Mask filemode value. Others can not get write permission.
914 * x flags for directories are handled separately.
919 int check_repository_format_version(const char *var
, const char *value
, void *cb
)
921 int ret
= check_repo_format(var
, value
, cb
);
924 if (strcmp(var
, "core.bare") == 0) {
925 is_bare_repository_cfg
= git_config_bool(var
, value
);
926 if (is_bare_repository_cfg
== 1)
927 inside_work_tree
= -1;
928 } else if (strcmp(var
, "core.worktree") == 0) {
930 return config_error_nonbool(var
);
931 free(git_work_tree_cfg
);
932 git_work_tree_cfg
= xstrdup(value
);
933 inside_work_tree
= -1;
938 int check_repository_format(void)
940 return check_repository_format_gently(get_git_dir(), NULL
);
944 * Returns the "prefix", a path to the current working directory
945 * relative to the work tree root, or NULL, if the current working
946 * directory is not a strict subdirectory of the work tree root. The
947 * prefix always ends with a '/' character.
949 const char *setup_git_directory(void)
951 return setup_git_directory_gently(NULL
);
954 const char *resolve_gitdir(const char *suspect
)
956 if (is_git_directory(suspect
))
958 return read_gitfile(suspect
);
961 /* if any standard file descriptor is missing open it to /dev/null */
962 void sanitize_stdfds(void)
964 int fd
= open("/dev/null", O_RDWR
, 0);
965 while (fd
!= -1 && fd
< 2)
968 die_errno("open /dev/null or dup failed");
975 #ifdef NO_POSIX_GOODIES
983 die_errno("fork failed");
988 die_errno("setsid failed");