#!/bin/sh
slot=$1

#Audit slot and release names
case $slot in
	*[^a-zA-Z0-9]* ) echo "Non-alphanumeric slot $slot"; exit 1
esac
if [ -z "$slot" ]; then
	echo "Zero-length slot or release"
	exit 1
fi

if [ ! -d /scratch/$slot ]; then
	echo "No file system for slot!"
	exit 1
fi

jail -r $slot
umount -f /scratch/$slot/dev || true
umount -f /scratch/$slot || true
chflags -R noschg /scratch/tmp/$slot
rm -rf /scratch/tmp/$slot /scratch/$slot
exit 0