outputs.file 'build/out.txt'
                doLast {
                    file('build/out.txt').text = 'some content'
                }
            }
            def dirProducer = tasks.register("dirProducer") {
                outputs.dir 'build/outdir'
                doLast {
                    file('build/outdir').mkdirs()
                    file('build/outdir/file1.txt').text = 'some content'