module Hoe::Travis

def travis_yml_generate
  travis_yml = {
    'after_script'  => travis_after_script,
    'before_script' => travis_before_script,
    'language'      => 'ruby',
    'notifications' => travis_notifications,
    'rvm'           => travis_versions,
    'script'        => travis_script,
  }
  travis_yml.each do |key, value|
    travis_yml.delete key unless value
  end
  YAML.dump travis_yml
end