def entry_lines(file)
      entries = []
      ::Zip::ZipFile.foreach(file) do |zentry|
        entries << zentry
      end
      entries
    end
def entry_lines(file)
      entries = []
      ::Zip::ZipFile.foreach(file) do |zentry|
        entries << zentry
      end
      entries
    end
Get the entries in the zip file. Returns an array of the entire
 contents, recursively (not just top-level).