Remove all whitespaces from Rails project: Run the script in Rails console

stripspace.rb

Dir.glob("app/**/*").select { |filename| ["rb", "js", "css", "scss", "erb", "haml", "yml"].include? filename.split(".").last }.each { |filename| 
  stripped = `git stripspace < #{filename}`
  File.open(filename, 'w') { |file| file.write(stripped) }
}