require 'formula' class Chromedriver < Formula homepage 'http://code.google.com/p/chromedriver/' url 'http://chromedriver.googlecode.com/files/chromedriver_mac_21.0.1180.4.zip' sha1 'ea6f2f45c835d3413fde3a7b08e5e3e4db6dc3f9' def install bin.install 'chromedriver' end end