cleanup method
void
cleanup()
Implementation
void cleanup() async {
/// wrapup cleanup
/// build
if (onlyFile == null) {
await BuildScript(['build', '--delete-conflicting-outputs']).build();
} else {
var dotSplit = path.join(srcDir, onlyFile).split('.');
await BuildScript(['run', (dotSplit..removeLast()).join('.') + '.dart'])
.build();
}
}