# File lib/rake/file_utils_ext.rb, line 77
77:     def nowrite(value=nil)
78:       oldvalue = FileUtilsExt.nowrite_flag
79:       FileUtilsExt.nowrite_flag = value unless value.nil?
80:       if block_given?
81:         begin
82:           yield
83:         ensure
84:           FileUtilsExt.nowrite_flag = oldvalue
85:         end
86:       end
87:       oldvalue
88:     end