tvl-depot/ops/nixos/default.nix

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# TODO(tazjin): rename 'pkgs' -> 'depot'?
{ pkgs, ... }:
let
inherit (pkgs) lib;
inherit (builtins) foldl';
systemFor = configs: (pkgs.third_party.nixos {
configuration = lib.fix(config:
foldl' lib.recursiveUpdate {} (map (c: c config) configs)
);
}).system;
nuggetSystem = systemFor [ pkgs.ops.nixos.nugget ];
rebuilder = pkgs.third_party.writeShellScriptBin "rebuilder" ''
set -ue
if [[ $EUID -ne 0 ]]; then
echo "Oh no! Only root is allowed to rebuild the system!" >&2
exit 1
fi
case $HOSTNAME in
nugget)
echo "Rebuilding NixOS for //ops/nixos/nugget"
system=$(nix-build -E '(import <depot> {}).ops.nixos.nuggetSystem' --no-out-link)
;;
*)
echo "$HOSTNAME is not a known NixOS host!" >&2
exit 1
;;
esac
nix-env -p /nix/var/nix/profiles/system --set $system
$system/bin/switch-to-configuration switch
'';
in {
inherit nuggetSystem rebuilder;
}