source $stdenv/setup

set -o pipefail

# basic file system layout
mkdir -p $out/etc $out/proc $out/sys $out/dev $out/run $out/tmp $out/var/tmp $out/var/lib/private/$serviceName $out/var/log $out/var/cache/private/$serviceName

ln -sf /var/cache/private/$serviceName $out/var/cache/$serviceName
ln -sf /var/lib/private/$serviceName $out/var/lib/$serviceName 

# empty files to mount over with host's version
touch $out/etc/resolv.conf $out/etc/machine-id

# required for portable services
cp ${osRelease} $out/etc/os-release


# units must be copied to /etc/…
mkdir -p $out/etc/systemd/system
units=($units)
unitNames=($unitNames)
for ((n = 0; n < ${#units[*]}; n++)); do
    unit=${units[$n]}
    unitName=${unitNames[$n]}
    cp $unit $out/etc/systemd/system/$unitName
done


# symlinks
objects=($objects)
targets=($targets)
for ((n = 0; n < ${#objects[*]}; n++)); do
    object=${objects[$n]}
    target=${targets[$n]}

    mkdir -p $(dirname $out/$target)
    ln -s $object $out/$target
done