#!/bin/bash -xe
set -o pipefail

# remove everything from dev
rm -rvf "${root:?}"/dev/*

# add sysroot mountpoint and ostree link to root
mkdir -p "${root:?}"/sysroot
ln -s /sysroot/ostree "${root:?}"/ostree

# add tmpfiles config to create expected directory structure
cat > "${root:?}"/etc/tmpfiles.d/var.conf << EOF
d /var/log/journal 0755 root root -
L /var/home - - - - ../sysroot/home
d /var/opt 0755 root root -
d /var/srv 0755 root root -
d /var/roothome 0700 root root -
d /var/usrlocal 0755 root root -
d /var/usrlocal/bin 0755 root root -
d /var/usrlocal/etc 0755 root root -
d /var/usrlocal/games 0755 root root -
d /var/usrlocal/include 0755 root root -
d /var/usrlocal/lib 0755 root root -
d /var/usrlocal/man 0755 root root -
d /var/usrlocal/sbin 0755 root root -
d /var/usrlocal/share 0755 root root -
d /var/usrlocal/src 0755 root root -
d /var/mnt 0755 root root -
d /run/media 0755 root root -
d /var/games 0755 root root -
EOF

# move /etc to /usr/etc
mv "${root:?}"/etc "${root:?}"/usr/etc
mkdir "${root:?}"/etc #TODO: do we need this?

# link persistent directories to /var
for dir in home opt srv mnt tmp; do
	rmdir "${root:?}"/"$dir"
	ln -s /var/"$dir" "${root:?}"/"$dir"
done

rm -rf "${root:?}"/root
ln -s /var/roothome "${root:?}"/root

rm -rf "${root:?}"/usr/local
ln -s /var/usrlocal "${root:?}"/usr/local