#!/bin/sh -eux
cd "${0%/*}"
host=$1
shift
chmod -R g-rwx,o-rwx private/root "$PWD"/private/hosts/*/root
trap 'git reset private/root private/hosts' EXIT
# prevent copying to /nix/store
git rm -rf --cached --ignore-unmatch private/root private/hosts/*
git reset private/hosts/"$host"/credentials private/hosts/"$host"/root/machine-id
time nix -L build "$@" -o hosts/"$host".root .\#nixosConfigurations."$host".config.system.build.toplevel