cask 'virtualbox-beta' do
  version '5.2.0_BETA1,117406'
  sha256 'a9585dcae981c542e5f26525a464d2987cf26ecacbd212e598d51ca231513f9f'

  url "http://download.virtualbox.org/virtualbox/#{version.before_comma}/VirtualBox-#{version.before_comma}-#{version.after_comma}-OSX.dmg"
  appcast 'http://download.virtualbox.org/virtualbox/LATEST-BETA.TXT',
          checkpoint: '2af71b046d16a13f3bb3e0e34e668b2acdc6cab8a4041113076d6c705a492546'
  name 'Oracle VirtualBox'
  homepage 'https://www.virtualbox.org/wiki/Testbuilds'

  auto_updates true

  pkg 'VirtualBox.pkg'

  uninstall_preflight do
    if File.exist?("#{HOMEBREW_PREFIX}/Caskroom/virtualbox-extension-pack-beta")
      system_command 'brew', args: ['cask', 'uninstall', 'virtualbox-extension-pack-beta']
    end
  end

  uninstall script:  {
                       executable: 'VirtualBox_Uninstall.tool',
                       args:       ['--unattended'],
                       sudo:       true,
                     },
            pkgutil: 'org.virtualbox.pkg.*'

  zap delete: [
                '/Library/Application Support/VirtualBox',
                '~/Library/VirtualBox',
              ],
      rmdir:  '~/VirtualBox VMs'
end