#!/bin/bash

if [ "$UID" -ne 0 ]; then
    >&2 echo 'Must be run as root'
    exit 1
fi

echo 'Syncing...'

rsync -a --delete --force --info=progress2 /media/embassy/embassyfs/current/ /media/embassy/next

mkdir -p /media/embassy/next/run
mkdir -p /media/embassy/next/dev
mkdir -p /media/embassy/next/sys
mkdir -p /media/embassy/next/proc
mkdir -p /media/embassy/next/boot
mount --bind /run /media/embassy/next/run
mount --bind /dev /media/embassy/next/dev
mount --bind /sys /media/embassy/next/sys
mount --bind /proc /media/embassy/next/proc
mount --bind /boot /media/embassy/next/boot

if [ -z "$*" ]; then
    chroot /media/embassy/next
    CHROOT_RES=$?
else
    chroot /media/embassy/next "$SHELL" -c "$*"
    CHROOT_RES=$?
fi

umount /media/embassy/next/run
umount /media/embassy/next/dev
umount /media/embassy/next/sys
umount /media/embassy/next/proc
umount /media/embassy/next/boot

if [ "$CHROOT_RES" -eq 0 ]; then
    echo 'Upgrading...'

    touch /media/embassy/config/upgrade

    sync

    reboot
fi