railties/lib/rails/dev_caching.rb


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require 'fileutils'

module Rails
  module DevCaching # :nodoc:
    class << self
      FILE = 'tmp/caching-dev.txt'

      def enable_by_file
        FileUtils.mkdir_p('tmp')

        if File.exist?(FILE)
          delete_cache_file
          puts 'Development mode is no longer being cached.'
        else
          create_cache_file
          puts 'Development mode is now being cached.'
        end

        FileUtils.touch 'tmp/restart.txt'
        FileUtils.rm_f('tmp/pids/server.pid')
      end

      def enable_by_argument(caching)
        FileUtils.mkdir_p('tmp')

        if caching
          create_cache_file
        elsif caching == false && File.exist?(FILE)
          delete_cache_file
        end
      end

      private
        def create_cache_file
          FileUtils.touch FILE
        end

        def delete_cache_file
          File.delete FILE
        end
    end
  end
end