Autotest.add_hook(:initialize)  do |at|
  %w{.git .svn .hg .swp .DS_Store ._* tmp}.each do |exception|
    at.add_exception(exception)
  end

  at.add_mapping(%r%^lib(/stages)?/(.*).rb$%, true) do |filename, _|
    ['test/test_pipeline.rb', 'test/test_stages.rb']
  end   

end