def create_file_name(file, base_dir)
      file_name = file.split("/").delete_if { |f| f.include?(".") }.first
      unless File.exists?(File.join(base_dir, file_name))
        Dir.mkdir(File.join(base_dir, file_name))
      end
      file_name
    end
def create_file_name(file, base_dir)
      file_name = file.split("/").delete_if { |f| f.include?(".") }.first
      unless File.exists?(File.join(base_dir, file_name))
        Dir.mkdir(File.join(base_dir, file_name))
      end
      file_name
    end
Create directories per tarball and return tarball file name
 minus the file extension.