Browserify helper for Cakefile

Cakefile

###*
 * @param options.watch - set watches on files, see below
 * @param options.cache - turn on caching for AST traversals, see below
 * @param options.debug - turn on source mapping for debugging with //@ sourceURL=... in browsers that support it
 * @param options.exports - an array of the core items to export to the namespace. Available items: 'require', 'process'
 * @param options.require - Require a file or files for inclusion in the bundle.
 * @param options.entry - Append a file to the end of the bundle and execute it without having to require() it.
 * @param options.filter - Transform the source using the filter function fn(src). The return value of fn should be the new source.
 * @param options.handlers - Register a handler to wrap extensions.
###
browserify = (options={}, dest, cb)->
  dest = path.join process.cwd(), dest
  writeFile = (dest, content, cb)->
    fs.writeFile dest, content, (err) ->
      if err?
        console.error "Error: #{err.message}"
      else
        console.log "Browserified #{dest} @ #{new Date().toLocaleTimeString()}"
        cb? dest
  browserify = require('browserify')(options)
  if options.handlers?
    for own ext, handler of options.handlers
      browserify.register(ext, handler)
  browserify.on 'syntaxError', (err)->
    console.error(err)
  writeFile(dest, browserify.bundle(), cb)
  if options.watch == true
    browserify.on 'bundle', ()->
      writeFile(dest, browserify.bundle(), cb)