Truncate a file

truncFile.groovy

import java.nio.channels.*
    
def truncFile(File file, long newSize) {
    FileChannel fileChannel;
    try {
        fileChannel = new FileOutputStream(file, true).getChannel();
        fileChannel.truncate(newSize);
    } finally {
        fileChannel?.close()
    }
    
}

Very elegant! Thank you both.

Thanks. Great snippet.