#!/bin/sh

if test `id -u` -ne 0
then
    echo "$0 must be run as root."
    return
fi

ROOT=test_environment

cleanup_mount() {
    if mountpoint "$1" > /dev/null
    then
        echo "Unmounting $1"
        umount "$1"
    fi
}

if test -e "$ROOT"
then
    cleanup_mount "$ROOT/proc"
    cleanup_mount "$ROOT/sys"
    echo "Removing $ROOT"
    rm -r "$ROOT"
else
    echo "No environment found at $ROOT. Doing nothing."
fi