require 'formula' class Tkdiff < Formula homepage 'http://tkdiff.sourceforge.net/' url 'http://downloads.sourceforge.net/project/tkdiff/tkdiff/4.2/tkdiff-4.2.tar.gz' md5 'efc19226416afe3e98e4a29c112cfc3e' def install bin.install 'tkdiff' end def test system "#{bin}/tkdiff --help" end end