docs: function writeJs(source, js, base) {
    var filename = path.basename(source, path.extname(source)) + '.js'
    var srcDir   = path.dirname(source)
    var baseDir  = srcDir.substring(base.length)
    var dir      = options.output ? path.join(options.output, baseDir) : srcDir
    var jsPath   = path.join(dir, filename)
    var compile  = function() {
      fs.writeFile(jsPath, js, function(err) {
        if(options.compile && options.watch) console.log("Compiled " + source)
      })
    }
    fs.exists(dir, function(exists) {
      exists ? compile() : exec("mkdir -p " + dir, compile)
    })
  }