# File lib/selenium/webdriver/common/zipper.rb, line 28
      def self.zip(path)
        # can't use Tempfile here since it doesn't support File::BINARY mode on 1.8
        # can't use Dir.mktmpdir(&blk) because of http://jira.codehaus.org/browse/JRUBY-4082
        tmp_dir = Dir.mktmpdir
        begin
          zip_path = File.join(tmp_dir, "webdriver-zip")

          Zip::ZipFile.open(zip_path, Zip::ZipFile::CREATE) { |zip|
            ::Find.find(path) do |file|
              next if File.directory?(file)
              entry = file.sub("#{path}/", '')

              zip.add entry, file
            end
          }

          File.open(zip_path, "rb") { |io| Base64.strict_encode64 io.read }
        ensure
          FileUtils.rm_rf tmp_dir
        end
      end