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{ config, hostPkgs, lib, ... }:
let
inherit (lib) types mkOption mdDoc;
in
{
options = {
passthru = mkOption {
type = types.lazyAttrsOf types.raw;
description = mdDoc ''
Attributes to add to the returned derivations,
which are not necessarily part of the build.
This is a bit like doing `drv // { myAttr = true; }` (which would be lost by `overrideAttrs`).
It does not change the actual derivation, but adds the attribute nonetheless, so that
consumers of what would be `drv` have more information.
'';
};
test = mkOption {
type = types.package;
# TODO: can the interactive driver be configured to access the network?
description = mdDoc ''
Derivation that runs the test as its "build" process.
This implies that NixOS tests run isolated from the network, making them
more dependable.
'';
};
};
config = {
test = lib.lazyDerivation { # lazyDerivation improves performance when only passthru items and/or meta are used.
derivation = hostPkgs.stdenv.mkDerivation {
name = "vm-test-run-${config.name}";
requiredSystemFeatures = [ "kvm" "nixos-test" ];
buildCommand = ''
mkdir -p $out
# effectively mute the XMLLogger
export LOGFILE=/dev/null
${config.driver}/bin/nixos-test-driver -o $out
'';
passthru = config.passthru;
meta = config.meta;
};
inherit (config) passthru meta;
};
# useful for inspection (debugging / exploration)
passthru.config = config;
};
}
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