# File lib/chef/expander/version.rb, line 28
    def self.version
      @rev ||= begin
        begin
          rev = Open3.popen3("git rev-parse HEAD") {|stdin, stdout, stderr| stdout.read }.strip
        rescue Errno::ENOENT
          rev = ""
        end
        rev.empty? ? nil : " (#{rev})"
      end
      "#{VERSION}#@rev"
    end