module Travis::Tools::System

def ruby
  case ruby_engine
  when 'ruby'  then "Ruby #{ruby_version}"
  when 'jruby' then "JRuby #{JRUBY_VERSION} like Ruby #{ruby_version}"
  when 'rbx'   then "Rubinius #{Rubinius.version[/\d\S+/]} like Ruby #{ruby_version}"
  else              "#{ruby_engine} like Ruby #{ruby_version}"
  end
end