3 #include "repository.h"
6 #include "string-list.h"
7 #include "chdir-notify.h"
8 #include "promisor-remote.h"
11 static int inside_git_dir
= -1;
12 static int inside_work_tree
= -1;
13 static int work_tree_config_is_bogus
;
14 enum allowed_bare_repo
{
15 ALLOWED_BARE_REPO_EXPLICIT
= 0,
16 ALLOWED_BARE_REPO_ALL
,
19 static struct startup_info the_startup_info
;
20 struct startup_info
*startup_info
= &the_startup_info
;
21 const char *tmp_original_cwd
;
24 * The input parameter must contain an absolute path, and it must already be
27 * Find the part of an absolute path that lies inside the work tree by
28 * dereferencing symlinks outside the work tree, for example:
29 * /dir1/repo/dir2/file (work tree is /dir1/repo) -> dir2/file
30 * /dir/file (work tree is /) -> dir/file
31 * /dir/symlink1/symlink2 (symlink1 points to work tree) -> symlink2
32 * /dir/repolink/file (repolink points to /dir/repo) -> file
33 * /dir/repo (exactly equal to work tree) -> (empty string)
35 static int abspath_part_inside_repo(char *path
)
41 const char *work_tree
= get_git_work_tree();
42 struct strbuf realpath
= STRBUF_INIT
;
46 wtlen
= strlen(work_tree
);
48 off
= offset_1st_component(path
);
50 /* check if work tree is already the prefix */
51 if (wtlen
<= len
&& !fspathncmp(path
, work_tree
, wtlen
)) {
52 if (path
[wtlen
] == '/') {
53 memmove(path
, path
+ wtlen
+ 1, len
- wtlen
);
55 } else if (path
[wtlen
- 1] == '/' || path
[wtlen
] == '\0') {
56 /* work tree is the root, or the whole path */
57 memmove(path
, path
+ wtlen
, len
- wtlen
+ 1);
60 /* work tree might match beginning of a symlink to work tree */
66 /* check each '/'-terminated level */
71 strbuf_realpath(&realpath
, path0
, 1);
72 if (fspathcmp(realpath
.buf
, work_tree
) == 0) {
73 memmove(path0
, path
+ 1, len
- (path
- path0
));
74 strbuf_release(&realpath
);
81 /* check whole path */
82 strbuf_realpath(&realpath
, path0
, 1);
83 if (fspathcmp(realpath
.buf
, work_tree
) == 0) {
85 strbuf_release(&realpath
);
89 strbuf_release(&realpath
);
94 * Normalize "path", prepending the "prefix" for relative paths. If
95 * remaining_prefix is not NULL, return the actual prefix still
96 * remains in the path. For example, prefix = sub1/sub2/ and path is
98 * foo -> sub1/sub2/foo (full prefix)
99 * ../foo -> sub1/foo (remaining prefix is sub1/)
100 * ../../bar -> bar (no remaining prefix)
101 * ../../sub1/sub2/foo -> sub1/sub2/foo (but no remaining prefix)
102 * `pwd`/../bar -> sub1/bar (no remaining prefix)
104 char *prefix_path_gently(const char *prefix
, int len
,
105 int *remaining_prefix
, const char *path
)
107 const char *orig
= path
;
109 if (is_absolute_path(orig
)) {
110 sanitized
= xmallocz(strlen(path
));
111 if (remaining_prefix
)
112 *remaining_prefix
= 0;
113 if (normalize_path_copy_len(sanitized
, path
, remaining_prefix
)) {
117 if (abspath_part_inside_repo(sanitized
)) {
122 sanitized
= xstrfmt("%.*s%s", len
, len
? prefix
: "", path
);
123 if (remaining_prefix
)
124 *remaining_prefix
= len
;
125 if (normalize_path_copy_len(sanitized
, sanitized
, remaining_prefix
)) {
133 char *prefix_path(const char *prefix
, int len
, const char *path
)
135 char *r
= prefix_path_gently(prefix
, len
, NULL
, path
);
137 const char *hint_path
= get_git_work_tree();
139 hint_path
= get_git_dir();
140 die(_("'%s' is outside repository at '%s'"), path
,
141 absolute_path(hint_path
));
146 int path_inside_repo(const char *prefix
, const char *path
)
148 int len
= prefix
? strlen(prefix
) : 0;
149 char *r
= prefix_path_gently(prefix
, len
, NULL
, path
);
157 int check_filename(const char *prefix
, const char *arg
)
159 char *to_free
= NULL
;
162 if (skip_prefix(arg
, ":/", &arg
)) {
163 if (!*arg
) /* ":/" is root dir, always exists */
166 } else if (skip_prefix(arg
, ":!", &arg
) ||
167 skip_prefix(arg
, ":^", &arg
)) {
168 if (!*arg
) /* excluding everything is silly, but allowed */
173 arg
= to_free
= prefix_filename(prefix
, arg
);
175 if (!lstat(arg
, &st
)) {
177 return 1; /* file exists */
179 if (is_missing_file_error(errno
)) {
181 return 0; /* file does not exist */
183 die_errno(_("failed to stat '%s'"), arg
);
186 static void NORETURN
die_verify_filename(struct repository
*r
,
189 int diagnose_misspelt_rev
)
191 if (!diagnose_misspelt_rev
)
192 die(_("%s: no such path in the working tree.\n"
193 "Use 'git <command> -- <path>...' to specify paths that do not exist locally."),
196 * Saying "'(icase)foo' does not exist in the index" when the
197 * user gave us ":(icase)foo" is just stupid. A magic pathspec
198 * begins with a colon and is followed by a non-alnum; do not
199 * let maybe_die_on_misspelt_object_name() even trigger.
201 if (!(arg
[0] == ':' && !isalnum(arg
[1])))
202 maybe_die_on_misspelt_object_name(r
, arg
, prefix
);
204 /* ... or fall back the most general message. */
205 die(_("ambiguous argument '%s': unknown revision or path not in the working tree.\n"
206 "Use '--' to separate paths from revisions, like this:\n"
207 "'git <command> [<revision>...] -- [<file>...]'"), arg
);
212 * Check for arguments that don't resolve as actual files,
213 * but which look sufficiently like pathspecs that we'll consider
214 * them such for the purposes of rev/pathspec DWIM parsing.
216 static int looks_like_pathspec(const char *arg
)
222 * Wildcard characters imply the user is looking to match pathspecs
223 * that aren't in the filesystem. Note that this doesn't include
224 * backslash even though it's a glob special; by itself it doesn't
225 * cause any increase in the match. Likewise ignore backslash-escaped
226 * wildcard characters.
228 for (p
= arg
; *p
; p
++) {
231 } else if (is_glob_special(*p
)) {
239 /* long-form pathspec magic */
240 if (starts_with(arg
, ":("))
247 * Verify a filename that we got as an argument for a pathspec
248 * entry. Note that a filename that begins with "-" never verifies
249 * as true, because even if such a filename were to exist, we want
250 * it to be preceded by the "--" marker (or we want the user to
251 * use a format like "./-filename")
253 * The "diagnose_misspelt_rev" is used to provide a user-friendly
254 * diagnosis when dying upon finding that "name" is not a pathname.
255 * If set to 1, the diagnosis will try to diagnose "name" as an
256 * invalid object name (e.g. HEAD:foo). If set to 0, the diagnosis
257 * will only complain about an inexisting file.
259 * This function is typically called to check that a "file or rev"
260 * argument is unambiguous. In this case, the caller will want
261 * diagnose_misspelt_rev == 1 when verifying the first non-rev
262 * argument (which could have been a revision), and
263 * diagnose_misspelt_rev == 0 for the next ones (because we already
264 * saw a filename, there's not ambiguity anymore).
266 void verify_filename(const char *prefix
,
268 int diagnose_misspelt_rev
)
271 die(_("option '%s' must come before non-option arguments"), arg
);
272 if (looks_like_pathspec(arg
) || check_filename(prefix
, arg
))
274 die_verify_filename(the_repository
, prefix
, arg
, diagnose_misspelt_rev
);
278 * Opposite of the above: the command line did not have -- marker
279 * and we parsed the arg as a refname. It should not be interpretable
282 void verify_non_filename(const char *prefix
, const char *arg
)
284 if (!is_inside_work_tree() || is_inside_git_dir())
288 if (!check_filename(prefix
, arg
))
290 die(_("ambiguous argument '%s': both revision and filename\n"
291 "Use '--' to separate paths from revisions, like this:\n"
292 "'git <command> [<revision>...] -- [<file>...]'"), arg
);
295 int get_common_dir(struct strbuf
*sb
, const char *gitdir
)
297 const char *git_env_common_dir
= getenv(GIT_COMMON_DIR_ENVIRONMENT
);
298 if (git_env_common_dir
) {
299 strbuf_addstr(sb
, git_env_common_dir
);
302 return get_common_dir_noenv(sb
, gitdir
);
306 int get_common_dir_noenv(struct strbuf
*sb
, const char *gitdir
)
308 struct strbuf data
= STRBUF_INIT
;
309 struct strbuf path
= STRBUF_INIT
;
312 strbuf_addf(&path
, "%s/commondir", gitdir
);
313 if (file_exists(path
.buf
)) {
314 if (strbuf_read_file(&data
, path
.buf
, 0) <= 0)
315 die_errno(_("failed to read %s"), path
.buf
);
316 while (data
.len
&& (data
.buf
[data
.len
- 1] == '\n' ||
317 data
.buf
[data
.len
- 1] == '\r'))
319 data
.buf
[data
.len
] = '\0';
321 if (!is_absolute_path(data
.buf
))
322 strbuf_addf(&path
, "%s/", gitdir
);
323 strbuf_addbuf(&path
, &data
);
324 strbuf_add_real_path(sb
, path
.buf
);
327 strbuf_addstr(sb
, gitdir
);
330 strbuf_release(&data
);
331 strbuf_release(&path
);
336 * Test if it looks like we're at a git directory.
339 * - either an objects/ directory _or_ the proper
340 * GIT_OBJECT_DIRECTORY environment variable
341 * - a refs/ directory
342 * - either a HEAD symlink or a HEAD file that is formatted as
343 * a proper "ref:", or a regular file HEAD that has a properly
344 * formatted sha1 object name.
346 int is_git_directory(const char *suspect
)
348 struct strbuf path
= STRBUF_INIT
;
352 /* Check worktree-related signatures */
353 strbuf_addstr(&path
, suspect
);
354 strbuf_complete(&path
, '/');
355 strbuf_addstr(&path
, "HEAD");
356 if (validate_headref(path
.buf
))
360 get_common_dir(&path
, suspect
);
363 /* Check non-worktree-related signatures */
364 if (getenv(DB_ENVIRONMENT
)) {
365 if (access(getenv(DB_ENVIRONMENT
), X_OK
))
369 strbuf_setlen(&path
, len
);
370 strbuf_addstr(&path
, "/objects");
371 if (access(path
.buf
, X_OK
))
375 strbuf_setlen(&path
, len
);
376 strbuf_addstr(&path
, "/refs");
377 if (access(path
.buf
, X_OK
))
382 strbuf_release(&path
);
386 int is_nonbare_repository_dir(struct strbuf
*path
)
390 size_t orig_path_len
= path
->len
;
391 assert(orig_path_len
!= 0);
392 strbuf_complete(path
, '/');
393 strbuf_addstr(path
, ".git");
394 if (read_gitfile_gently(path
->buf
, &gitfile_error
) || is_git_directory(path
->buf
))
396 if (gitfile_error
== READ_GITFILE_ERR_OPEN_FAILED
||
397 gitfile_error
== READ_GITFILE_ERR_READ_FAILED
)
399 strbuf_setlen(path
, orig_path_len
);
403 int is_inside_git_dir(void)
405 if (inside_git_dir
< 0)
406 inside_git_dir
= is_inside_dir(get_git_dir());
407 return inside_git_dir
;
410 int is_inside_work_tree(void)
412 if (inside_work_tree
< 0)
413 inside_work_tree
= is_inside_dir(get_git_work_tree());
414 return inside_work_tree
;
417 void setup_work_tree(void)
419 const char *work_tree
;
420 static int initialized
= 0;
425 if (work_tree_config_is_bogus
)
426 die(_("unable to set up work tree using invalid config"));
428 work_tree
= get_git_work_tree();
429 if (!work_tree
|| chdir_notify(work_tree
))
430 die(_("this operation must be run in a work tree"));
433 * Make sure subsequent git processes find correct worktree
434 * if $GIT_WORK_TREE is set relative
436 if (getenv(GIT_WORK_TREE_ENVIRONMENT
))
437 setenv(GIT_WORK_TREE_ENVIRONMENT
, ".", 1);
442 static void setup_original_cwd(void)
444 struct strbuf tmp
= STRBUF_INIT
;
445 const char *worktree
= NULL
;
448 if (!tmp_original_cwd
)
452 * startup_info->original_cwd points to the current working
453 * directory we inherited from our parent process, which is a
454 * directory we want to avoid removing.
456 * For convience, we would like to have the path relative to the
457 * worktree instead of an absolute path.
459 * Yes, startup_info->original_cwd is usually the same as 'prefix',
460 * but differs in two ways:
461 * - prefix has a trailing '/'
462 * - if the user passes '-C' to git, that modifies the prefix but
463 * not startup_info->original_cwd.
466 /* Normalize the directory */
467 if (!strbuf_realpath(&tmp
, tmp_original_cwd
, 0)) {
468 trace2_data_string("setup", the_repository
,
469 "realpath-path", tmp_original_cwd
);
470 trace2_data_string("setup", the_repository
,
471 "realpath-failure", strerror(errno
));
472 free((char*)tmp_original_cwd
);
473 tmp_original_cwd
= NULL
;
477 free((char*)tmp_original_cwd
);
478 tmp_original_cwd
= NULL
;
479 startup_info
->original_cwd
= strbuf_detach(&tmp
, NULL
);
482 * Get our worktree; we only protect the current working directory
483 * if it's in the worktree.
485 worktree
= get_git_work_tree();
487 goto no_prevention_needed
;
489 offset
= dir_inside_of(startup_info
->original_cwd
, worktree
);
492 * If startup_info->original_cwd == worktree, that is already
493 * protected and we don't need original_cwd as a secondary
494 * protection measure.
496 if (!*(startup_info
->original_cwd
+ offset
))
497 goto no_prevention_needed
;
500 * original_cwd was inside worktree; precompose it just as
501 * we do prefix so that built up paths will match
503 startup_info
->original_cwd
= \
504 precompose_string_if_needed(startup_info
->original_cwd
509 no_prevention_needed
:
510 free((char*)startup_info
->original_cwd
);
511 startup_info
->original_cwd
= NULL
;
514 static int read_worktree_config(const char *var
, const char *value
, void *vdata
)
516 struct repository_format
*data
= vdata
;
518 if (strcmp(var
, "core.bare") == 0) {
519 data
->is_bare
= git_config_bool(var
, value
);
520 } else if (strcmp(var
, "core.worktree") == 0) {
522 return config_error_nonbool(var
);
523 free(data
->work_tree
);
524 data
->work_tree
= xstrdup(value
);
529 enum extension_result
{
530 EXTENSION_ERROR
= -1, /* compatible with error(), etc */
531 EXTENSION_UNKNOWN
= 0,
536 * Do not add new extensions to this function. It handles extensions which are
537 * respected even in v0-format repositories for historical compatibility.
539 static enum extension_result
handle_extension_v0(const char *var
,
542 struct repository_format
*data
)
544 if (!strcmp(ext
, "noop")) {
546 } else if (!strcmp(ext
, "preciousobjects")) {
547 data
->precious_objects
= git_config_bool(var
, value
);
549 } else if (!strcmp(ext
, "partialclone")) {
550 data
->partial_clone
= xstrdup(value
);
552 } else if (!strcmp(ext
, "worktreeconfig")) {
553 data
->worktree_config
= git_config_bool(var
, value
);
557 return EXTENSION_UNKNOWN
;
561 * Record any new extensions in this function.
563 static enum extension_result
handle_extension(const char *var
,
566 struct repository_format
*data
)
568 if (!strcmp(ext
, "noop-v1")) {
570 } else if (!strcmp(ext
, "objectformat")) {
574 return config_error_nonbool(var
);
575 format
= hash_algo_by_name(value
);
576 if (format
== GIT_HASH_UNKNOWN
)
577 return error(_("invalid value for '%s': '%s'"),
578 "extensions.objectformat", value
);
579 data
->hash_algo
= format
;
582 return EXTENSION_UNKNOWN
;
585 static int check_repo_format(const char *var
, const char *value
, void *vdata
)
587 struct repository_format
*data
= vdata
;
590 if (strcmp(var
, "core.repositoryformatversion") == 0)
591 data
->version
= git_config_int(var
, value
);
592 else if (skip_prefix(var
, "extensions.", &ext
)) {
593 switch (handle_extension_v0(var
, value
, ext
, data
)) {
594 case EXTENSION_ERROR
:
598 case EXTENSION_UNKNOWN
:
602 switch (handle_extension(var
, value
, ext
, data
)) {
603 case EXTENSION_ERROR
:
606 string_list_append(&data
->v1_only_extensions
, ext
);
608 case EXTENSION_UNKNOWN
:
609 string_list_append(&data
->unknown_extensions
, ext
);
614 return read_worktree_config(var
, value
, vdata
);
617 static int check_repository_format_gently(const char *gitdir
, struct repository_format
*candidate
, int *nongit_ok
)
619 struct strbuf sb
= STRBUF_INIT
;
620 struct strbuf err
= STRBUF_INIT
;
623 has_common
= get_common_dir(&sb
, gitdir
);
624 strbuf_addstr(&sb
, "/config");
625 read_repository_format(candidate
, sb
.buf
);
629 * For historical use of check_repository_format() in git-init,
630 * we treat a missing config as a silent "ok", even when nongit_ok
633 if (candidate
->version
< 0)
636 if (verify_repository_format(candidate
, &err
) < 0) {
638 warning("%s", err
.buf
);
639 strbuf_release(&err
);
646 repository_format_precious_objects
= candidate
->precious_objects
;
647 repository_format_worktree_config
= candidate
->worktree_config
;
648 string_list_clear(&candidate
->unknown_extensions
, 0);
649 string_list_clear(&candidate
->v1_only_extensions
, 0);
651 if (repository_format_worktree_config
) {
653 * pick up core.bare and core.worktree from per-worktree
656 strbuf_addf(&sb
, "%s/config.worktree", gitdir
);
657 git_config_from_file(read_worktree_config
, sb
.buf
, candidate
);
663 if (candidate
->is_bare
!= -1) {
664 is_bare_repository_cfg
= candidate
->is_bare
;
665 if (is_bare_repository_cfg
== 1)
666 inside_work_tree
= -1;
668 if (candidate
->work_tree
) {
669 free(git_work_tree_cfg
);
670 git_work_tree_cfg
= xstrdup(candidate
->work_tree
);
671 inside_work_tree
= -1;
678 int upgrade_repository_format(int target_version
)
680 struct strbuf sb
= STRBUF_INIT
;
681 struct strbuf err
= STRBUF_INIT
;
682 struct strbuf repo_version
= STRBUF_INIT
;
683 struct repository_format repo_fmt
= REPOSITORY_FORMAT_INIT
;
685 strbuf_git_common_path(&sb
, the_repository
, "config");
686 read_repository_format(&repo_fmt
, sb
.buf
);
689 if (repo_fmt
.version
>= target_version
)
692 if (verify_repository_format(&repo_fmt
, &err
) < 0) {
693 error("cannot upgrade repository format from %d to %d: %s",
694 repo_fmt
.version
, target_version
, err
.buf
);
695 strbuf_release(&err
);
698 if (!repo_fmt
.version
&& repo_fmt
.unknown_extensions
.nr
)
699 return error("cannot upgrade repository format: "
700 "unknown extension %s",
701 repo_fmt
.unknown_extensions
.items
[0].string
);
703 strbuf_addf(&repo_version
, "%d", target_version
);
704 git_config_set("core.repositoryformatversion", repo_version
.buf
);
705 strbuf_release(&repo_version
);
709 static void init_repository_format(struct repository_format
*format
)
711 const struct repository_format fresh
= REPOSITORY_FORMAT_INIT
;
713 memcpy(format
, &fresh
, sizeof(fresh
));
716 int read_repository_format(struct repository_format
*format
, const char *path
)
718 clear_repository_format(format
);
719 git_config_from_file(check_repo_format
, path
, format
);
720 if (format
->version
== -1)
721 clear_repository_format(format
);
722 return format
->version
;
725 void clear_repository_format(struct repository_format
*format
)
727 string_list_clear(&format
->unknown_extensions
, 0);
728 string_list_clear(&format
->v1_only_extensions
, 0);
729 free(format
->work_tree
);
730 free(format
->partial_clone
);
731 init_repository_format(format
);
734 int verify_repository_format(const struct repository_format
*format
,
737 if (GIT_REPO_VERSION_READ
< format
->version
) {
738 strbuf_addf(err
, _("Expected git repo version <= %d, found %d"),
739 GIT_REPO_VERSION_READ
, format
->version
);
743 if (format
->version
>= 1 && format
->unknown_extensions
.nr
) {
746 strbuf_addstr(err
, Q_("unknown repository extension found:",
747 "unknown repository extensions found:",
748 format
->unknown_extensions
.nr
));
750 for (i
= 0; i
< format
->unknown_extensions
.nr
; i
++)
751 strbuf_addf(err
, "\n\t%s",
752 format
->unknown_extensions
.items
[i
].string
);
756 if (format
->version
== 0 && format
->v1_only_extensions
.nr
) {
760 Q_("repo version is 0, but v1-only extension found:",
761 "repo version is 0, but v1-only extensions found:",
762 format
->v1_only_extensions
.nr
));
764 for (i
= 0; i
< format
->v1_only_extensions
.nr
; i
++)
765 strbuf_addf(err
, "\n\t%s",
766 format
->v1_only_extensions
.items
[i
].string
);
773 void read_gitfile_error_die(int error_code
, const char *path
, const char *dir
)
775 switch (error_code
) {
776 case READ_GITFILE_ERR_STAT_FAILED
:
777 case READ_GITFILE_ERR_NOT_A_FILE
:
778 /* non-fatal; follow return path */
780 case READ_GITFILE_ERR_OPEN_FAILED
:
781 die_errno(_("error opening '%s'"), path
);
782 case READ_GITFILE_ERR_TOO_LARGE
:
783 die(_("too large to be a .git file: '%s'"), path
);
784 case READ_GITFILE_ERR_READ_FAILED
:
785 die(_("error reading %s"), path
);
786 case READ_GITFILE_ERR_INVALID_FORMAT
:
787 die(_("invalid gitfile format: %s"), path
);
788 case READ_GITFILE_ERR_NO_PATH
:
789 die(_("no path in gitfile: %s"), path
);
790 case READ_GITFILE_ERR_NOT_A_REPO
:
791 die(_("not a git repository: %s"), dir
);
793 BUG("unknown error code");
798 * Try to read the location of the git directory from the .git file,
799 * return path to git directory if found. The return value comes from
802 * On failure, if return_error_code is not NULL, return_error_code
803 * will be set to an error code and NULL will be returned. If
804 * return_error_code is NULL the function will die instead (for most
807 const char *read_gitfile_gently(const char *path
, int *return_error_code
)
809 const int max_file_size
= 1 << 20; /* 1MB */
817 static struct strbuf realpath
= STRBUF_INIT
;
819 if (stat(path
, &st
)) {
820 /* NEEDSWORK: discern between ENOENT vs other errors */
821 error_code
= READ_GITFILE_ERR_STAT_FAILED
;
824 if (!S_ISREG(st
.st_mode
)) {
825 error_code
= READ_GITFILE_ERR_NOT_A_FILE
;
828 if (st
.st_size
> max_file_size
) {
829 error_code
= READ_GITFILE_ERR_TOO_LARGE
;
832 fd
= open(path
, O_RDONLY
);
834 error_code
= READ_GITFILE_ERR_OPEN_FAILED
;
837 buf
= xmallocz(st
.st_size
);
838 len
= read_in_full(fd
, buf
, st
.st_size
);
840 if (len
!= st
.st_size
) {
841 error_code
= READ_GITFILE_ERR_READ_FAILED
;
844 if (!starts_with(buf
, "gitdir: ")) {
845 error_code
= READ_GITFILE_ERR_INVALID_FORMAT
;
848 while (buf
[len
- 1] == '\n' || buf
[len
- 1] == '\r')
851 error_code
= READ_GITFILE_ERR_NO_PATH
;
857 if (!is_absolute_path(dir
) && (slash
= strrchr(path
, '/'))) {
858 size_t pathlen
= slash
+1 - path
;
859 dir
= xstrfmt("%.*s%.*s", (int)pathlen
, path
,
860 (int)(len
- 8), buf
+ 8);
864 if (!is_git_directory(dir
)) {
865 error_code
= READ_GITFILE_ERR_NOT_A_REPO
;
869 strbuf_realpath(&realpath
, dir
, 1);
873 if (return_error_code
)
874 *return_error_code
= error_code
;
876 read_gitfile_error_die(error_code
, path
, dir
);
879 return error_code
? NULL
: path
;
882 static const char *setup_explicit_git_dir(const char *gitdirenv
,
884 struct repository_format
*repo_fmt
,
887 const char *work_tree_env
= getenv(GIT_WORK_TREE_ENVIRONMENT
);
888 const char *worktree
;
892 if (PATH_MAX
- 40 < strlen(gitdirenv
))
893 die(_("'$%s' too big"), GIT_DIR_ENVIRONMENT
);
895 gitfile
= (char*)read_gitfile(gitdirenv
);
897 gitfile
= xstrdup(gitfile
);
901 if (!is_git_directory(gitdirenv
)) {
907 die(_("not a git repository: '%s'"), gitdirenv
);
910 if (check_repository_format_gently(gitdirenv
, repo_fmt
, nongit_ok
)) {
915 /* #3, #7, #11, #15, #19, #23, #27, #31 (see t1510) */
917 set_git_work_tree(work_tree_env
);
918 else if (is_bare_repository_cfg
> 0) {
919 if (git_work_tree_cfg
) {
921 warning("core.bare and core.worktree do not make sense");
922 work_tree_config_is_bogus
= 1;
926 set_git_dir(gitdirenv
, 0);
930 else if (git_work_tree_cfg
) { /* #6, #14 */
931 if (is_absolute_path(git_work_tree_cfg
))
932 set_git_work_tree(git_work_tree_cfg
);
935 if (chdir(gitdirenv
))
936 die_errno(_("cannot chdir to '%s'"), gitdirenv
);
937 if (chdir(git_work_tree_cfg
))
938 die_errno(_("cannot chdir to '%s'"), git_work_tree_cfg
);
939 core_worktree
= xgetcwd();
941 die_errno(_("cannot come back to cwd"));
942 set_git_work_tree(core_worktree
);
946 else if (!git_env_bool(GIT_IMPLICIT_WORK_TREE_ENVIRONMENT
, 1)) {
948 set_git_dir(gitdirenv
, 0);
953 set_git_work_tree(".");
955 /* set_git_work_tree() must have been called by now */
956 worktree
= get_git_work_tree();
958 /* both get_git_work_tree() and cwd are already normalized */
959 if (!strcmp(cwd
->buf
, worktree
)) { /* cwd == worktree */
960 set_git_dir(gitdirenv
, 0);
965 offset
= dir_inside_of(cwd
->buf
, worktree
);
966 if (offset
>= 0) { /* cwd inside worktree? */
967 set_git_dir(gitdirenv
, 1);
969 die_errno(_("cannot chdir to '%s'"), worktree
);
970 strbuf_addch(cwd
, '/');
972 return cwd
->buf
+ offset
;
975 /* cwd outside worktree */
976 set_git_dir(gitdirenv
, 0);
981 static const char *setup_discovered_git_dir(const char *gitdir
,
982 struct strbuf
*cwd
, int offset
,
983 struct repository_format
*repo_fmt
,
986 if (check_repository_format_gently(gitdir
, repo_fmt
, nongit_ok
))
989 /* --work-tree is set without --git-dir; use discovered one */
990 if (getenv(GIT_WORK_TREE_ENVIRONMENT
) || git_work_tree_cfg
) {
991 char *to_free
= NULL
;
994 if (offset
!= cwd
->len
&& !is_absolute_path(gitdir
))
995 gitdir
= to_free
= real_pathdup(gitdir
, 1);
997 die_errno(_("cannot come back to cwd"));
998 ret
= setup_explicit_git_dir(gitdir
, cwd
, repo_fmt
, nongit_ok
);
1003 /* #16.2, #17.2, #20.2, #21.2, #24, #25, #28, #29 (see t1510) */
1004 if (is_bare_repository_cfg
> 0) {
1005 set_git_dir(gitdir
, (offset
!= cwd
->len
));
1006 if (chdir(cwd
->buf
))
1007 die_errno(_("cannot come back to cwd"));
1011 /* #0, #1, #5, #8, #9, #12, #13 */
1012 set_git_work_tree(".");
1013 if (strcmp(gitdir
, DEFAULT_GIT_DIR_ENVIRONMENT
))
1014 set_git_dir(gitdir
, 0);
1016 inside_work_tree
= 1;
1017 if (offset
>= cwd
->len
)
1020 /* Make "offset" point past the '/' (already the case for root dirs) */
1021 if (offset
!= offset_1st_component(cwd
->buf
))
1023 /* Add a '/' at the end */
1024 strbuf_addch(cwd
, '/');
1025 return cwd
->buf
+ offset
;
1028 /* #16.1, #17.1, #20.1, #21.1, #22.1 (see t1510) */
1029 static const char *setup_bare_git_dir(struct strbuf
*cwd
, int offset
,
1030 struct repository_format
*repo_fmt
,
1035 if (check_repository_format_gently(".", repo_fmt
, nongit_ok
))
1038 setenv(GIT_IMPLICIT_WORK_TREE_ENVIRONMENT
, "0", 1);
1040 /* --work-tree is set without --git-dir; use discovered one */
1041 if (getenv(GIT_WORK_TREE_ENVIRONMENT
) || git_work_tree_cfg
) {
1042 static const char *gitdir
;
1044 gitdir
= offset
== cwd
->len
? "." : xmemdupz(cwd
->buf
, offset
);
1045 if (chdir(cwd
->buf
))
1046 die_errno(_("cannot come back to cwd"));
1047 return setup_explicit_git_dir(gitdir
, cwd
, repo_fmt
, nongit_ok
);
1051 inside_work_tree
= 0;
1052 if (offset
!= cwd
->len
) {
1053 if (chdir(cwd
->buf
))
1054 die_errno(_("cannot come back to cwd"));
1055 root_len
= offset_1st_component(cwd
->buf
);
1056 strbuf_setlen(cwd
, offset
> root_len
? offset
: root_len
);
1057 set_git_dir(cwd
->buf
, 0);
1060 set_git_dir(".", 0);
1064 static dev_t
get_device_or_die(const char *path
, const char *prefix
, int prefix_len
)
1067 if (stat(path
, &buf
)) {
1068 die_errno(_("failed to stat '%*s%s%s'"),
1070 prefix
? prefix
: "",
1071 prefix
? "/" : "", path
);
1077 * A "string_list_each_func_t" function that canonicalizes an entry
1078 * from GIT_CEILING_DIRECTORIES using real_pathdup(), or
1079 * discards it if unusable. The presence of an empty entry in
1080 * GIT_CEILING_DIRECTORIES turns off canonicalization for all
1081 * subsequent entries.
1083 static int canonicalize_ceiling_entry(struct string_list_item
*item
,
1086 int *empty_entry_found
= cb_data
;
1087 char *ceil
= item
->string
;
1090 *empty_entry_found
= 1;
1092 } else if (!is_absolute_path(ceil
)) {
1094 } else if (*empty_entry_found
) {
1095 /* Keep entry but do not canonicalize it */
1098 char *real_path
= real_pathdup(ceil
, 0);
1103 item
->string
= real_path
;
1108 struct safe_directory_data
{
1113 static int safe_directory_cb(const char *key
, const char *value
, void *d
)
1115 struct safe_directory_data
*data
= d
;
1117 if (strcmp(key
, "safe.directory"))
1120 if (!value
|| !*value
) {
1122 } else if (!strcmp(value
, "*")) {
1125 const char *interpolated
= NULL
;
1127 if (!git_config_pathname(&interpolated
, key
, value
) &&
1128 !fspathcmp(data
->path
, interpolated
? interpolated
: value
))
1131 free((char *)interpolated
);
1138 * Check if a repository is safe, by verifying the ownership of the
1139 * worktree (if any), the git directory, and the gitfile (if any).
1141 * Exemptions for known-safe repositories can be added via `safe.directory`
1142 * config settings; for non-bare repositories, their worktree needs to be
1143 * added, for bare ones their git directory.
1145 static int ensure_valid_ownership(const char *gitfile
,
1146 const char *worktree
, const char *gitdir
,
1147 struct strbuf
*report
)
1149 struct safe_directory_data data
= {
1150 .path
= worktree
? worktree
: gitdir
1153 if (!git_env_bool("GIT_TEST_ASSUME_DIFFERENT_OWNER", 0) &&
1154 (!gitfile
|| is_path_owned_by_current_user(gitfile
, report
)) &&
1155 (!worktree
|| is_path_owned_by_current_user(worktree
, report
)) &&
1156 (!gitdir
|| is_path_owned_by_current_user(gitdir
, report
)))
1160 * data.path is the "path" that identifies the repository and it is
1161 * constant regardless of what failed above. data.is_safe should be
1162 * initialized to false, and might be changed by the callback.
1164 git_protected_config(safe_directory_cb
, &data
);
1166 return data
.is_safe
;
1169 static int allowed_bare_repo_cb(const char *key
, const char *value
, void *d
)
1171 enum allowed_bare_repo
*allowed_bare_repo
= d
;
1173 if (strcasecmp(key
, "safe.bareRepository"))
1176 if (!strcmp(value
, "explicit")) {
1177 *allowed_bare_repo
= ALLOWED_BARE_REPO_EXPLICIT
;
1180 if (!strcmp(value
, "all")) {
1181 *allowed_bare_repo
= ALLOWED_BARE_REPO_ALL
;
1187 static enum allowed_bare_repo
get_allowed_bare_repo(void)
1189 enum allowed_bare_repo result
= ALLOWED_BARE_REPO_ALL
;
1190 git_protected_config(allowed_bare_repo_cb
, &result
);
1194 static const char *allowed_bare_repo_to_string(
1195 enum allowed_bare_repo allowed_bare_repo
)
1197 switch (allowed_bare_repo
) {
1198 case ALLOWED_BARE_REPO_EXPLICIT
:
1200 case ALLOWED_BARE_REPO_ALL
:
1203 BUG("invalid allowed_bare_repo %d",
1209 enum discovery_result
{
1214 /* these are errors */
1215 GIT_DIR_HIT_CEILING
= -1,
1216 GIT_DIR_HIT_MOUNT_POINT
= -2,
1217 GIT_DIR_INVALID_GITFILE
= -3,
1218 GIT_DIR_INVALID_OWNERSHIP
= -4,
1219 GIT_DIR_DISALLOWED_BARE
= -5,
1223 * We cannot decide in this function whether we are in the work tree or
1224 * not, since the config can only be read _after_ this function was called.
1226 * Also, we avoid changing any global state (such as the current working
1227 * directory) to allow early callers.
1229 * The directory where the search should start needs to be passed in via the
1230 * `dir` parameter; upon return, the `dir` buffer will contain the path of
1231 * the directory where the search ended, and `gitdir` will contain the path of
1232 * the discovered .git/ directory, if any. If `gitdir` is not absolute, it
1233 * is relative to `dir` (i.e. *not* necessarily the cwd).
1235 static enum discovery_result
setup_git_directory_gently_1(struct strbuf
*dir
,
1236 struct strbuf
*gitdir
,
1237 struct strbuf
*report
,
1240 const char *env_ceiling_dirs
= getenv(CEILING_DIRECTORIES_ENVIRONMENT
);
1241 struct string_list ceiling_dirs
= STRING_LIST_INIT_DUP
;
1242 const char *gitdirenv
;
1243 int ceil_offset
= -1, min_offset
= offset_1st_component(dir
->buf
);
1244 dev_t current_device
= 0;
1245 int one_filesystem
= 1;
1248 * If GIT_DIR is set explicitly, we're not going
1249 * to do any discovery, but we still do repository
1252 gitdirenv
= getenv(GIT_DIR_ENVIRONMENT
);
1254 strbuf_addstr(gitdir
, gitdirenv
);
1255 return GIT_DIR_EXPLICIT
;
1258 if (env_ceiling_dirs
) {
1259 int empty_entry_found
= 0;
1261 string_list_split(&ceiling_dirs
, env_ceiling_dirs
, PATH_SEP
, -1);
1262 filter_string_list(&ceiling_dirs
, 0,
1263 canonicalize_ceiling_entry
, &empty_entry_found
);
1264 ceil_offset
= longest_ancestor_length(dir
->buf
, &ceiling_dirs
);
1265 string_list_clear(&ceiling_dirs
, 0);
1268 if (ceil_offset
< 0)
1269 ceil_offset
= min_offset
- 2;
1271 if (min_offset
&& min_offset
== dir
->len
&&
1272 !is_dir_sep(dir
->buf
[min_offset
- 1])) {
1273 strbuf_addch(dir
, '/');
1278 * Test in the following order (relative to the dir):
1279 * - .git (file containing "gitdir: <path>")
1288 one_filesystem
= !git_env_bool("GIT_DISCOVERY_ACROSS_FILESYSTEM", 0);
1290 current_device
= get_device_or_die(dir
->buf
, NULL
, 0);
1292 int offset
= dir
->len
, error_code
= 0;
1293 char *gitdir_path
= NULL
;
1294 char *gitfile
= NULL
;
1296 if (offset
> min_offset
)
1297 strbuf_addch(dir
, '/');
1298 strbuf_addstr(dir
, DEFAULT_GIT_DIR_ENVIRONMENT
);
1299 gitdirenv
= read_gitfile_gently(dir
->buf
, die_on_error
?
1300 NULL
: &error_code
);
1303 error_code
== READ_GITFILE_ERR_NOT_A_FILE
) {
1304 /* NEEDSWORK: fail if .git is not file nor dir */
1305 if (is_git_directory(dir
->buf
)) {
1306 gitdirenv
= DEFAULT_GIT_DIR_ENVIRONMENT
;
1307 gitdir_path
= xstrdup(dir
->buf
);
1309 } else if (error_code
!= READ_GITFILE_ERR_STAT_FAILED
)
1310 return GIT_DIR_INVALID_GITFILE
;
1312 gitfile
= xstrdup(dir
->buf
);
1314 * Earlier, we tentatively added DEFAULT_GIT_DIR_ENVIRONMENT
1315 * to check that directory for a repository.
1316 * Now trim that tentative addition away, because we want to
1317 * focus on the real directory we are in.
1319 strbuf_setlen(dir
, offset
);
1321 enum discovery_result ret
;
1322 const char *gitdir_candidate
=
1323 gitdir_path
? gitdir_path
: gitdirenv
;
1325 if (ensure_valid_ownership(gitfile
, dir
->buf
,
1326 gitdir_candidate
, report
)) {
1327 strbuf_addstr(gitdir
, gitdirenv
);
1328 ret
= GIT_DIR_DISCOVERED
;
1330 ret
= GIT_DIR_INVALID_OWNERSHIP
;
1333 * Earlier, during discovery, we might have allocated
1334 * string copies for gitdir_path or gitfile so make
1335 * sure we don't leak by freeing them now, before
1336 * leaving the loop and function.
1338 * Note: gitdirenv will be non-NULL whenever these are
1339 * allocated, therefore we need not take care of releasing
1340 * them outside of this conditional block.
1348 if (is_git_directory(dir
->buf
)) {
1349 if (get_allowed_bare_repo() == ALLOWED_BARE_REPO_EXPLICIT
)
1350 return GIT_DIR_DISALLOWED_BARE
;
1351 if (!ensure_valid_ownership(NULL
, NULL
, dir
->buf
, report
))
1352 return GIT_DIR_INVALID_OWNERSHIP
;
1353 strbuf_addstr(gitdir
, ".");
1354 return GIT_DIR_BARE
;
1357 if (offset
<= min_offset
)
1358 return GIT_DIR_HIT_CEILING
;
1360 while (--offset
> ceil_offset
&& !is_dir_sep(dir
->buf
[offset
]))
1362 if (offset
<= ceil_offset
)
1363 return GIT_DIR_HIT_CEILING
;
1365 strbuf_setlen(dir
, offset
> min_offset
? offset
: min_offset
);
1366 if (one_filesystem
&&
1367 current_device
!= get_device_or_die(dir
->buf
, NULL
, offset
))
1368 return GIT_DIR_HIT_MOUNT_POINT
;
1372 int discover_git_directory(struct strbuf
*commondir
,
1373 struct strbuf
*gitdir
)
1375 struct strbuf dir
= STRBUF_INIT
, err
= STRBUF_INIT
;
1376 size_t gitdir_offset
= gitdir
->len
, cwd_len
;
1377 size_t commondir_offset
= commondir
->len
;
1378 struct repository_format candidate
= REPOSITORY_FORMAT_INIT
;
1380 if (strbuf_getcwd(&dir
))
1384 if (setup_git_directory_gently_1(&dir
, gitdir
, NULL
, 0) <= 0) {
1385 strbuf_release(&dir
);
1390 * The returned gitdir is relative to dir, and if dir does not reflect
1391 * the current working directory, we simply make the gitdir absolute.
1393 if (dir
.len
< cwd_len
&& !is_absolute_path(gitdir
->buf
+ gitdir_offset
)) {
1394 /* Avoid a trailing "/." */
1395 if (!strcmp(".", gitdir
->buf
+ gitdir_offset
))
1396 strbuf_setlen(gitdir
, gitdir_offset
);
1398 strbuf_addch(&dir
, '/');
1399 strbuf_insert(gitdir
, gitdir_offset
, dir
.buf
, dir
.len
);
1402 get_common_dir(commondir
, gitdir
->buf
+ gitdir_offset
);
1405 strbuf_addf(&dir
, "%s/config", commondir
->buf
+ commondir_offset
);
1406 read_repository_format(&candidate
, dir
.buf
);
1407 strbuf_release(&dir
);
1409 if (verify_repository_format(&candidate
, &err
) < 0) {
1410 warning("ignoring git dir '%s': %s",
1411 gitdir
->buf
+ gitdir_offset
, err
.buf
);
1412 strbuf_release(&err
);
1413 strbuf_setlen(commondir
, commondir_offset
);
1414 strbuf_setlen(gitdir
, gitdir_offset
);
1415 clear_repository_format(&candidate
);
1419 /* take ownership of candidate.partial_clone */
1420 the_repository
->repository_format_partial_clone
=
1421 candidate
.partial_clone
;
1422 candidate
.partial_clone
= NULL
;
1424 clear_repository_format(&candidate
);
1428 const char *setup_git_directory_gently(int *nongit_ok
)
1430 static struct strbuf cwd
= STRBUF_INIT
;
1431 struct strbuf dir
= STRBUF_INIT
, gitdir
= STRBUF_INIT
, report
= STRBUF_INIT
;
1432 const char *prefix
= NULL
;
1433 struct repository_format repo_fmt
= REPOSITORY_FORMAT_INIT
;
1436 * We may have read an incomplete configuration before
1437 * setting-up the git directory. If so, clear the cache so
1438 * that the next queries to the configuration reload complete
1439 * configuration (including the per-repo config file that we
1440 * ignored previously).
1445 * Let's assume that we are in a git repository.
1446 * If it turns out later that we are somewhere else, the value will be
1447 * updated accordingly.
1452 if (strbuf_getcwd(&cwd
))
1453 die_errno(_("Unable to read current working directory"));
1454 strbuf_addbuf(&dir
, &cwd
);
1456 switch (setup_git_directory_gently_1(&dir
, &gitdir
, &report
, 1)) {
1457 case GIT_DIR_EXPLICIT
:
1458 prefix
= setup_explicit_git_dir(gitdir
.buf
, &cwd
, &repo_fmt
, nongit_ok
);
1460 case GIT_DIR_DISCOVERED
:
1461 if (dir
.len
< cwd
.len
&& chdir(dir
.buf
))
1462 die(_("cannot change to '%s'"), dir
.buf
);
1463 prefix
= setup_discovered_git_dir(gitdir
.buf
, &cwd
, dir
.len
,
1464 &repo_fmt
, nongit_ok
);
1467 if (dir
.len
< cwd
.len
&& chdir(dir
.buf
))
1468 die(_("cannot change to '%s'"), dir
.buf
);
1469 prefix
= setup_bare_git_dir(&cwd
, dir
.len
, &repo_fmt
, nongit_ok
);
1471 case GIT_DIR_HIT_CEILING
:
1473 die(_("not a git repository (or any of the parent directories): %s"),
1474 DEFAULT_GIT_DIR_ENVIRONMENT
);
1477 case GIT_DIR_HIT_MOUNT_POINT
:
1479 die(_("not a git repository (or any parent up to mount point %s)\n"
1480 "Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set)."),
1484 case GIT_DIR_INVALID_OWNERSHIP
:
1486 struct strbuf quoted
= STRBUF_INIT
;
1488 strbuf_complete(&report
, '\n');
1489 sq_quote_buf_pretty("ed
, dir
.buf
);
1490 die(_("detected dubious ownership in repository at '%s'\n"
1492 "To add an exception for this directory, call:\n"
1494 "\tgit config --global --add safe.directory %s"),
1495 dir
.buf
, report
.buf
, quoted
.buf
);
1499 case GIT_DIR_DISALLOWED_BARE
:
1501 die(_("cannot use bare repository '%s' (safe.bareRepository is '%s')"),
1503 allowed_bare_repo_to_string(get_allowed_bare_repo()));
1509 * As a safeguard against setup_git_directory_gently_1 returning
1510 * this value, fallthrough to BUG. Otherwise it is possible to
1511 * set startup_info->have_repository to 1 when we did nothing to
1512 * find a repository.
1515 BUG("unhandled setup_git_directory_gently_1() result");
1519 * At this point, nongit_ok is stable. If it is non-NULL and points
1520 * to a non-zero value, then this means that we haven't found a
1521 * repository and that the caller expects startup_info to reflect
1524 * Regardless of the state of nongit_ok, startup_info->prefix and
1525 * the GIT_PREFIX environment variable must always match. For details
1526 * see Documentation/config/alias.txt.
1528 if (nongit_ok
&& *nongit_ok
)
1529 startup_info
->have_repository
= 0;
1531 startup_info
->have_repository
= 1;
1534 * Not all paths through the setup code will call 'set_git_dir()' (which
1535 * directly sets up the environment) so in order to guarantee that the
1536 * environment is in a consistent state after setup, explicitly setup
1537 * the environment if we have a repository.
1539 * NEEDSWORK: currently we allow bogus GIT_DIR values to be set in some
1540 * code paths so we also need to explicitly setup the environment if
1541 * the user has set GIT_DIR. It may be beneficial to disallow bogus
1542 * GIT_DIR values at some point in the future.
1544 if (/* GIT_DIR_EXPLICIT, GIT_DIR_DISCOVERED, GIT_DIR_BARE */
1545 startup_info
->have_repository
||
1546 /* GIT_DIR_EXPLICIT */
1547 getenv(GIT_DIR_ENVIRONMENT
)) {
1548 if (!the_repository
->gitdir
) {
1549 const char *gitdir
= getenv(GIT_DIR_ENVIRONMENT
);
1551 gitdir
= DEFAULT_GIT_DIR_ENVIRONMENT
;
1552 setup_git_env(gitdir
);
1554 if (startup_info
->have_repository
) {
1555 repo_set_hash_algo(the_repository
, repo_fmt
.hash_algo
);
1556 /* take ownership of repo_fmt.partial_clone */
1557 the_repository
->repository_format_partial_clone
=
1558 repo_fmt
.partial_clone
;
1559 repo_fmt
.partial_clone
= NULL
;
1563 * Since precompose_string_if_needed() needs to look at
1564 * the core.precomposeunicode configuration, this
1565 * has to happen after the above block that finds
1566 * out where the repository is, i.e. a preparation
1567 * for calling git_config_get_bool().
1570 prefix
= precompose_string_if_needed(prefix
);
1571 startup_info
->prefix
= prefix
;
1572 setenv(GIT_PREFIX_ENVIRONMENT
, prefix
, 1);
1574 startup_info
->prefix
= NULL
;
1575 setenv(GIT_PREFIX_ENVIRONMENT
, "", 1);
1578 setup_original_cwd();
1580 strbuf_release(&dir
);
1581 strbuf_release(&gitdir
);
1582 strbuf_release(&report
);
1583 clear_repository_format(&repo_fmt
);
1588 int git_config_perm(const char *var
, const char *value
)
1596 if (!strcmp(value
, "umask"))
1598 if (!strcmp(value
, "group"))
1600 if (!strcmp(value
, "all") ||
1601 !strcmp(value
, "world") ||
1602 !strcmp(value
, "everybody"))
1603 return PERM_EVERYBODY
;
1605 /* Parse octal numbers */
1606 i
= strtol(value
, &endptr
, 8);
1608 /* If not an octal number, maybe true/false? */
1610 return git_config_bool(var
, value
) ? PERM_GROUP
: PERM_UMASK
;
1613 * Treat values 0, 1 and 2 as compatibility cases, otherwise it is
1614 * a chmod value to restrict to.
1617 case PERM_UMASK
: /* 0 */
1619 case OLD_PERM_GROUP
: /* 1 */
1621 case OLD_PERM_EVERYBODY
: /* 2 */
1622 return PERM_EVERYBODY
;
1625 /* A filemode value was given: 0xxx */
1627 if ((i
& 0600) != 0600)
1628 die(_("problem with core.sharedRepository filemode value "
1629 "(0%.3o).\nThe owner of files must always have "
1630 "read and write permissions."), i
);
1633 * Mask filemode value. Others can not get write permission.
1634 * x flags for directories are handled separately.
1639 void check_repository_format(struct repository_format
*fmt
)
1641 struct repository_format repo_fmt
= REPOSITORY_FORMAT_INIT
;
1644 check_repository_format_gently(get_git_dir(), fmt
, NULL
);
1645 startup_info
->have_repository
= 1;
1646 repo_set_hash_algo(the_repository
, fmt
->hash_algo
);
1647 the_repository
->repository_format_partial_clone
=
1648 xstrdup_or_null(fmt
->partial_clone
);
1649 clear_repository_format(&repo_fmt
);
1653 * Returns the "prefix", a path to the current working directory
1654 * relative to the work tree root, or NULL, if the current working
1655 * directory is not a strict subdirectory of the work tree root. The
1656 * prefix always ends with a '/' character.
1658 const char *setup_git_directory(void)
1660 return setup_git_directory_gently(NULL
);
1663 const char *resolve_gitdir_gently(const char *suspect
, int *return_error_code
)
1665 if (is_git_directory(suspect
))
1667 return read_gitfile_gently(suspect
, return_error_code
);
1670 /* if any standard file descriptor is missing open it to /dev/null */
1671 void sanitize_stdfds(void)
1673 int fd
= xopen("/dev/null", O_RDWR
);
1682 #ifdef NO_POSIX_GOODIES
1690 die_errno(_("fork failed"));
1695 die_errno(_("setsid failed"));