module Selenium::WebDriver::Zipper

def zip(path)
  with_tmp_zip do |zip|
    ::Find.find(path) do |file|
      unless File.directory?(file)
        add_zip_entry zip, file, file.sub("#{path}/", '')
      end
    end
    zip.commit
    File.open(zip.name, 'rb') { |io| Base64.strict_encode64 io.read }
  end
end