Docker v0.8.0 Fomula for HomeBrew

docker.rb

require 'formula'

class Docker < Formula
    homepage 'http://docker.io/'
    url 'https://github.com/dotcloud/docker/archive/v0.8.0.tar.gz'
    sha1 '1e9362dab2ac2ecb4a1f193a7e72d060000438c3'

    depends_on 'go' => :build
    depends_on 'mercurial' => :build

  def install
    ENV['GOPATH'] = buildpath/'vendor'
    ENV['DOCKER_GITCOMMIT'] = 'cc3a8c8d8ec57e15b7b7316797132d770408ab1a'
    ENV['DOCKER_CROSSPLATFORMS'] = 'darwin/amd64 darwin/386'
    system './hack/vendor.sh'
    system './hack/make.sh'
    system 'cp', 'builds/Darwin/x86_64/docker-0.8.0', 'builds/Darwin/x86_64/docker'
    bin.install 'builds/Darwin/x86_64/docker'
  end

  test do
    system bin'/docker', '-v'
    (testpath/'Test.file').write <<-EOS.undent
      Docker version 0.8.0, build cc3a8c8
    EOS
    assert_equal 'OK', ` test.file`.strip
  end
end