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#! /usr/bin/env sh
set -eu
build_system() {
host="$1"
show_trace_arg=""
if [ "$show_trace" = true ]; then
show_trace_arg="--show-trace"
fi
_val="$(nix build ".#nixosConfigurations.$host.config.system.build.toplevel" --print-out-paths --no-link --option max-jobs 1 $show_trace_arg)"
exit_val="$?"
if [ "$exit_val" -ne 0 ]; then
echo "ERROR: Failed to build you system config for host: '$host'" 1>&2
printf 1
else
printf "%s" "$_val"
fi
}
remove_symlink() {
link="$1"
if [ -L "$link" ]; then
rm "$link"
else
echo "ERROR: '$link' is not a symlink. Not removing it." 1>&2
exit 1
fi
}
root="$(git rev-parse --show-toplevel)"
use_dirty=true
show_trace=false
while [ "$#" -ne 0 ]; do
case "$1" in
--dirty)
use_dirty=true
;;
--clean)
use_dirty=false
;;
--show-trace)
show_trace=true
;;
--* | -*)
echo "arg '$1' is not known."
exit 2
;;
*)
# We reached the hosts
break
;;
esac
shift 1
done
if [ "$#" -eq 0 ]; then
# shellcheck disable=SC2046
set -- $(ls "$root/hosts/by-name")
fi
if [ "$use_dirty" = "false" ]; then
tmp="$(mktemp -d -t "server_build_script_XXXXX")"
trap 'rm -r "$tmp"' EXIT
git archive --format=tar.gz HEAD | {
cd "$tmp"
tar -xz
}
cd "$tmp"
fi
for host in "$@"; do
system="$(build_system "$host")"
[ "$system" = "1" ] && exit 1
result_link="$root/result-$host"
remove_symlink "$result_link"
nix-store --add-root "$result_link" --realise "$(readlink -f "$system")"
# Try to also provide an easy link for potential home manager outputs.
fd "home-manager-\w*.service" "$result_link/etc/systemd/system" | while read -r hm; do
home_generation_link="$(grep ExecStart= "$hm" | awk '{print $2}')"
user_name="$(basename "$hm" | sed 's/home-manager-\(.*\)\.service/\1/')"
home_link="$root/result-$host-hm-$user_name"
remove_symlink "$home_link"
ln --symbolic "$home_generation_link" "$home_link"
done
if [ "$host" = "$(hostname)" ]; then
nvd diff /run/current-system "$result_link"
fi
done
# vim: ft=sh
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