def ensure_file_exists(basepath, filepath)
      path = File.join(basepath, filepath)
      [file_match(path)] unless File.exist?(path)
    end
def ensure_file_exists(basepath, filepath)
      path = File.join(basepath, filepath)
      [file_match(path)] unless File.exist?(path)
    end
Match unless a file exists using the basepath of the cookbook and the filepath

 @author Joseph Holsten - joseph@josephholsten.com
 @since 10.3
 @param basepath [String] base path of the cookbook
 @param filepath [String] path to the file within the cookbook
 @return [String] the absolute path to the base of the cookbook