text: function filterByOptions(filename, opts){
    if (opts.include) {
      return (opts.include instanceof Array)
        ? opts.include.indexOf(filename) >= 0
        : filename == opts.include
    }
  
    if (opts.exclude){
      return (opts.exclude instanceof Array)
        ? !(opts.exclude.indexOf(filename) >= 0)
        : filename != opts.exclude
    }
    return true
  }
  
  module.exports = filterByOptions
  