# File lib/rake.rb, line 840 840: def nowrite(value=nil) 841: oldvalue = RakeFileUtils.nowrite_flag 842: RakeFileUtils.nowrite_flag = value unless value.nil? 843: if block_given? 844: begin 845: yield 846: ensure 847: RakeFileUtils.nowrite_flag = oldvalue 848: end 849: end 850: oldvalue 851: end