cask 'webkit-nightly' do version :latest sha256 :no_check url do require 'open-uri' open('https://webkit.org/downloads/') { |landing_page| landing_page.read[%r{https:\/\/builds-nightly.webkit.org\/files\/trunk\/mac\/WebKit-SVN-r\d+.dmg}] } end name 'WebKit Nightly' homepage 'https://webkit.org/downloads/' app 'WebKit.app' end