require 'formula' class GitExtras < Formula homepage 'https://github.com/visionmedia/git-extras' url 'https://github.com/visionmedia/git-extras/tarball/1.5.0' sha1 '60e0ad00b046d76b3c111d9cc3d02aa4191e450a' head 'https://github.com/visionmedia/git-extras.git', :branch => 'master' def install system "make", "PREFIX=#{prefix}", "install" end end