# File lib/fileutils.rb, line 444
  def copy_entry(src, dest, preserve = false, dereference_root = false)
    Entry_.new(src, nil, dereference_root).traverse do |ent|
      destent = Entry_.new(dest, ent.rel, false)
      ent.copy destent.path
      ent.copy_metadata destent.path if preserve
    end
  end