task copy(type: Copy) {
                from 'files'
                into 'dest'
                filter(SubstitutingFilter)
            }

            class SubstitutingFilter extends FilterReader {
                SubstitutingFilter(Reader reader) {
                    super(new StringReader(reader.text.replaceAll("one", "1").replaceAll("two", "2")))
                }
            }
        """