# File lib/appraisal/command.rb, line 17
    def run
      with_clean_env { ensure_bundler_is_available }
      announce

      with_clean_env do
        env.each_pair do |key, value|
          ENV[key] = value
        end

        unless Kernel.system(command_as_string)
          exit(1)
        end
      end
    end