Rake task for cleaning header comments from objc files

Rakefile

namespace :housekeeping do
  desc "Remove all header-comments"
  task :remove_header_comments do
    ["Classes", "Tests"].each do |directory|
      files = Dir["./#{directory}/**/*"].select { |value| File.file?(value) }
      files.each do |file|
        lines_array = File.open(file).readlines
        if lines_array.first.match(/^\/\//) && !lines_array.first.match(/^\/\/ DO NOT EDIT/)
          text = lines_array.drop_while { |line| line.match(/^\/\/|^\n/) }
          File.open(file, 'w') do |f|
            f.puts text
          end
        end
      end
    end
  end
end