# File lib/rake/file_utils_ext.rb, line 80
80:     def nowrite(value=nil)
81:       oldvalue = FileUtilsExt.nowrite_flag
82:       FileUtilsExt.nowrite_flag = value unless value.nil?
83:       if block_given?
84:         begin
85:           yield
86:         ensure
87:           FileUtilsExt.nowrite_flag = oldvalue
88:         end
89:       end
90:       oldvalue
91:     end