Script to compare retina and non-retina images to test if there are correctly sized

bad_images.rb

#!/usr/bin/env ruby

require 'fastimage'


if ARGV.count != 1
	puts "Use command: \n$ ruby #{__FILE__} <.xcassets>"
	exit()
end


def test_if_retina_is_par file_path
	size_array = FastImage.size(file_path)
	width = size_array[0]
	height = size_array[1]

 	if (width.to_i % 2) != 0 || (height.to_i % 2) != 0
 		puts "#{file_path} :: (#{width}, #{height})"
 	end
end


def find_coincidences(current_path, file_pattern)
	Dir.foreach(current_path).each do |file|
		next if file == "." || file == ".."

		file_expanded = File.join current_path, file

		if File.directory? file_expanded
			find_coincidences file_expanded, file_pattern
			next
		end

		if file_expanded.end_with? file_pattern
			test_if_retina_is_par file_expanded
		end
	end
end



assets_path = File.expand_path(ARGV[0])
find_coincidences assets_path, "@2x.png"