shared: export is_dir

src/shared/mkdir.c

@@ -58,7 +58,7 @@ int mkdir_safe(const char *path, mode_t mode, uid_t uid, gid_t gid) {
         return mkdir_safe_internal(path, mode, uid, gid, mkdir);
 }
 
-static int is_dir(const char* path) {
+int is_dir(const char* path) {
         struct stat st;
 
         if (stat(path, &st) < 0)

src/shared/mkdir.h

@@ -41,3 +41,4 @@ typedef int (*mkdir_func_t)(const char *pathname, mode_t mode);
 int mkdir_safe_internal(const char *path, mode_t mode, uid_t uid, gid_t gid, mkdir_func_t _mkdir);
 int mkdir_parents_internal(const char *prefix, const char *path, mode_t mode, mkdir_func_t _mkdir);
 int mkdir_p_internal(const char *prefix, const char *path, mode_t mode, mkdir_func_t _mkdir);
+int is_dir(const char *path);