#!/usr/bin/env bash
if ! [ -e deploy_key ] || ! [ -e secrets.nix ]
then
  git crypt unlock
	sudo chgrp nixbld deploy_key
	chmod 640 deploy_key
fi
export NIX_PATH="ssh-id-file=`pwd`/deploy_key":secrets=`pwd`/secrets.nix
case $1 in
git)
	export NIX_PATH="nixpkgs=https://github.com/NixOS/nixpkgs/archive/master.tar.gz:nixos-config=`pwd`/logical/$2.nix:$NIX_PATH"
	eval ${@:3}
	;;
stable)
	export NIX_PATH="nixpkgs=https://nixos.org/channels/nixos-17.03/nixexprs.tar.xz:nixos-config=`pwd`/logical/$2.nix:$NIX_PATH"
	eval ${@:3}
	;;
checkout)
    export NIX_PATH="nixpkgs=`pwd`/../nixpkgs:nixos-config=`pwd`/logical/$2.nix:$NIX_PATH"
    eval ${@:3}
    ;;
channel)
	export NIX_PATH="/nix/var/nix/profiles/per-user/root/channels/nixos:nixos-config=`pwd`/logical/$2.nix:$NIX_PATH"
	eval ${@:3}
	;;
esac