How to prevent rake from polluting global namespace

prevent.rb

class Module
  def with_rake_pollution_prevention_append_features(klass)
    unless caller.first.match(/rake/) && self.name == "Rake::DeprecatedObjectDSL"
      without_rake_pollution_prevention_append_features(klass)
    end
  end
  alias without_rake_pollution_prevention_append_features append_features
  alias append_features with_rake_pollution_prevention_append_features
end