def initialize spec, generate_rdoc = true, generate_ri = true
    @doc_dir   = spec.doc_dir
    @file_info = nil
    @force     = false
    @rdoc      = nil
    @spec      = spec

    @generate_rdoc = generate_rdoc
    @generate_ri   = generate_ri

    @rdoc_dir = spec.doc_dir 'rdoc'
    @ri_dir   = spec.doc_dir 'ri'
  end
#
Creates a new documentation generator for +spec+.  RDoc and ri data
generation can be disabled through +generate_rdoc+ and +generate_ri+
respectively.