From 627b11d21b4aadcf277f67c536d99177009e466c Mon Sep 17 00:00:00 2001
From: Erik Arvstedt <erik.arvstedt@gmail.com>
Date: Tue, 7 Dec 2021 15:28:09 +0100
Subject: [PATCH] makeShell: use old nix tooling

The `nix` command is an experimental feature and should be avoided in
user-facing code.

I recently saw `nix eval` failing for a user who was asking for help
via Matrix.
---
 helper/makeShell.nix | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/helper/makeShell.nix b/helper/makeShell.nix
index 933ecb4..7dd93fb 100644
--- a/helper/makeShell.nix
+++ b/helper/makeShell.nix
@@ -106,7 +106,8 @@ pkgs.stdenv.mkDerivation {
     )}
 
     eval-config() {
-      NIXOS_CONFIG="${cfgDir}/krops/krops-configuration.nix" nix eval --raw -f ${nixpkgs}/nixos system.outPath
+      NIXOS_CONFIG="${cfgDir}/krops/krops-configuration.nix" \
+        nix-instantiate --eval ${nixpkgs}/nixos -A system.outPath | tr -d '"'
       echo
     }