Convert .js files to .coffee files in batch.

coffify

#!/usr/bin/env ruby

# Usage:
# $ coffify app/*/*

# Depends on http://js2coffee.org/
# npm install js2coffee

ARGV.each{|filepath|
  # skip this file if it's not a .js file
  next unless filepath.index(/\.js$/)

  # compute the destination .coffee filepath
  # perhaps overly verbose.
  dir         = File.dirname(filepath)
  coffeename  = File.basename(filepath).sub(/\.js$/, '.coffee')
  destination = File.join(dir, coffeename)


  if File.exists?(destination)
    print "\"#{destination}\" already exists. Overwrite? (y/n) "
    answer = $stdin.gets.downcase
    next unless answer.index('y')
  end

  if system("js2coffee #{filepath} > #{destination}")
    system("rm #{filepath}")
  end
}