# File lib/rake.rb, line 849 849: def nowrite(value=nil) 850: oldvalue = RakeFileUtils.nowrite_flag 851: RakeFileUtils.nowrite_flag = value unless value.nil? 852: if block_given? 853: begin 854: yield 855: ensure 856: RakeFileUtils.nowrite_flag = oldvalue 857: end 858: end 859: oldvalue 860: end