Merge branch 'jk/git-dir-lookup' into maint

* jk/git-dir-lookup:
  standardize and improve lookup rules for external local repos

1 files changed, 1 insertions, 0 deletions

diff --git a/cache.h b/cache.h
index c07f54e9cf..3a8e1258e7 100644
--- a/cache.h
+++ b/cache.h
@@ -432,6 +432,7 @@ extern char *git_work_tree_cfg;
 extern int is_inside_work_tree(void);
 extern int have_git_dir(void);
 extern const char *get_git_dir(void);
+extern int is_git_directory(const char *path);
 extern char *get_object_directory(void);
 extern char *get_index_file(void);
 extern char *get_graft_file(void);