#!/bin/sh

set -e

cleanup() {
    if [ -n "${tmpdir}" ] && [ -d "${tmpdir}" ] && [ / != "${tmpdir}" ]; then
        if mountpoint -q "${tmpdir}"; then
            umount "${tmpdir}"
        fi
        rm -rf "${tmpdir}"
    fi
    unset tmpdir
}

tmpdir=$(TMPDIR=/run mktemp -d)
trap cleanup INT QUIT TERM EXIT

mount -o bind / "${tmpdir}"
cp -a "${tmpdir}"/var/. /var/

if [ -x "$(command -v selinuxenabled)" ] && selinuxenabled; then
    restorecon -RF /var
fi