optional.coffee

# ****
# Needs to be before the optional dependency
# ****
optional = (name) ->
  try
    require name
  catch err
    console.log " * optional dependency not found: #{name}"
    false

usage.coffee

# !!! include optional.coffee somehow !!!!

path   = require 'path'
open   = optional 'open'
lodash = optional 'lodash'

url = 'http://localhost:3000/'
open url if open