A tiny utility to help you copy files:

• Always cleans up file descriptors
• mkdir -p support
• Promise support
• No half-written files
• Insusceptible to race conditions, meaning you can do multiple copies fine

varcp=require('fs-cp')// file to filecp('package.json','package2.json').then(function(){})// stream to filecp(res,'response.json').then(function(){})