# File lib/rb-inotify/notifier.rb, line 189
    def watch(path, *flags, &callback)
      return Watcher.new(self, path, *flags, &callback) unless flags.include?(:recursive)

      dir = Dir.new(path)

      dir.each do |base|
        d = File.join(path, base)
        binary_d = d.respond_to?(:force_encoding) ? d.dup.force_encoding('BINARY') : d
        next if binary_d =~ /\/\.\.?$/ # Current or parent directory
        next if RECURSIVE_BLACKLIST.include?(d)
        next if flags.include?(:dont_follow) && File.symlink?(d)
        next if !File.directory?(d)

        watch(d, *flags, &callback)
      end

      dir.close

      rec_flags = [:create, :moved_to]
      return watch(path, *((flags - [:recursive]) | rec_flags)) do |event|
        callback.call(event) if flags.include?(:all_events) || !(flags & event.flags).empty?
        next if (rec_flags & event.flags).empty? || !event.flags.include?(:isdir)
        begin
          watch(event.absolute_name, *flags, &callback)
        rescue Errno::ENOENT
          # If the file has been deleted since the glob was run, we don't want to error out.
        end
      end
    end