FileList, list all files recursive in a directory that matches the expression

FileList.coffee

fs = require('fs')
class FileList
  constructor: (dir,exp = '') ->
    @fileList = []
    @pattern = new RegExp(exp)
    @getFiles(dir)
  getFiles: (dir) ->
    files = fs.readdirSync(dir)
    for file in files
      name = "#{dir}/#{file}"
      if fs.statSync(name).isDirectory()
        @getFiles(name)
      else
        if @pattern.test(name)
          @fileList.push(name)
          

files = new FileList('source','.coffee') #All .coffee files in the source dir