diff options
Diffstat (limited to 'nixos/lib/testing-python.nix')
| -rw-r--r-- | nixos/lib/testing-python.nix | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/nixos/lib/testing-python.nix b/nixos/lib/testing-python.nix index b1e9bed4a5c11..cce017a6441db 100644 --- a/nixos/lib/testing-python.nix +++ b/nixos/lib/testing-python.nix @@ -218,6 +218,7 @@ rec { build-vms = import ./build-vms.nix { inherit system lib pkgs minimal specialArgs; extraConfigurations = extraConfigurations ++ [( + { config, ... }: { virtualisation.qemu.package = qemu_pkg; @@ -230,7 +231,17 @@ rec { # copied to the image. virtualisation.additionalPaths = lib.optional - (builtins.hasContext testScript') + # A testScript may evaluate nodes, which has caused + # infinite recursions. The demand cycle involves: + # testScript --> + # nodes --> + # toplevel --> + # additionalPaths --> + # hasContext testScript' --> + # testScript (ad infinitum) + # If we don't need to build an image, we can break this + # cycle by short-circuiting when useNixStoreImage is false. + (config.virtualisation.useNixStoreImage && builtins.hasContext testScript') (pkgs.writeStringReferencesToFile testScript'); # Ensure we do not use aliases. Ideally this is only set |