class Zip::StreamableStream

def clean_up
  @temp_file.unlink
end

def get_input_stream
  unless @temp_file.closed?
    raise StandardError, "cannot open entry for reading while its open for writing - #{name}"
  end
  @temp_file.open # reopens tempfile from top
  @temp_file.binmode
  if block_given?
    begin
      yield(@temp_file)
    ensure
      @temp_file.close
    end
  else
    @temp_file
  end
end

def get_output_stream
  if block_given?
    begin
      yield(@temp_file)
    ensure
      @temp_file.close
    end
  else
    @temp_file
  end
end

def initialize(entry)
  super(entry)
  @temp_file = Tempfile.new(::File.basename(name))
  @temp_file.binmode
end

def write_to_zip_output_stream(output_stream)
  output_stream.put_next_entry(self)
  get_input_stream { |is| ::Zip::IOExtras.copy_stream(output_stream, is) }
end