encode_all_the_fucking_files.rb

files = Dir.glob("app/**/*.rb")
files.concat Dir.glob("lib/**/*.rb")
files.each do |file_name|
  lines = File.readlines(file_name)

  if !["#encoding: utf-8\n", "# encoding: utf-8\n"].include?(lines.first)
    puts "Rewriting #{file_name}"
    lines = ["#encoding: utf-8\n"].concat lines
    new_file = File.new(file_name, "w")
    lines.each { |line| new_file.write line }
    new_file.close
  end
end