# File lib/thor/actions/file_manipulation.rb, line 22
    def copy_file(source, *args, &block)
      config = args.last.is_a?(Hash) ? args.pop : {}
      destination = args.first || source
      source = File.expand_path(find_in_source_paths(source.to_s))

      create_file destination, nil, config do
        content = File.binread(source)
        content = yield(content) if block
        content
      end
      if config[:mode] == :preserve
        mode = File.stat(source).mode
        chmod(destination, mode, config)
      end
    end