# File lib/rake/file_utils_ext.rb, line 81
81:     def nowrite(value=nil)
82:       oldvalue = FileUtilsExt.nowrite_flag
83:       FileUtilsExt.nowrite_flag = value unless value.nil?
84:       if block_given?
85:         begin
86:           yield
87:         ensure
88:           FileUtilsExt.nowrite_flag = oldvalue
89:         end
90:       end
91:       oldvalue
92:     end