watching?

# File activesupport/lib/active_support/evented_file_update_checker.rb, line 150
      def watching?(file)
        file = Pathname(file)

        if @files.member?(file)
          true
        elsif file.directory?
          false
        else
          ext = file.extname

          file.dirname.ascend do |dir|
            matching = @dirs[dir]

            if matching && (matching.empty? || matching.include?(ext))
              break true
            elsif dir == @common_path || dir.root?
              break false
            end
          end
        end
      end