simplify runInLinuxVM test

pkgs/distro-packages/flake-module.nix

@@ -3,109 +3,25 @@
   perSystem =
     {
       self',
-      inputs',
       lib,
+      pkgs,
       ...
     }:
-    let
-      pkgs = inputs'.nixpkgs.legacyPackages;
-
-      images = {
-        "ubuntu-22-04" = {
-          image = import <nix/fetchurl.nix> {
-            url = "https://app.vagrantup.com/generic/boxes/ubuntu2204/versions/4.1.12/providers/libvirt.box";
-            hash = "sha256-HNll0Qikw/xGIcogni5lz01vUv+R3o8xowP2EtqjuUQ=";
-          };
-          rootDisk = "box.img";
-          system = "x86_64-linux";
-          package = self'.checks.package-gui-installer-deb;
-          installCmd = "dpkg -i package/*.deb";
-        };
-      };
-
-      makeTest =
-        imageName: testName:
-        let
-          image = images.${imageName};
-        in
-        pkgs.runCommand "package-${testName}-install-test-${imageName}"
-          {
-            buildInputs = [
-              pkgs.qemu_kvm
-              pkgs.openssh
-            ];
-            image = image.image;
-            postBoot = image.postBoot or "";
-            installCmd = image.installCmd;
-            package = image.package;
-          }
-          ''
-            shopt -s nullglob
-
-            echo "Unpacking Vagrant box $image..."
-            tar xvf $image
-
-            image_type=$(qemu-img info ${image.rootDisk} | sed 's/file format: \(.*\)/\1/; t; d')
-
-            qemu-img create -b ./${image.rootDisk} -F "$image_type" -f qcow2 ./disk.qcow2
-
-            extra_qemu_opts="${image.extraQemuOpts or ""}"
-
-            # Add the config disk, required by the Ubuntu images.
-            config_drive=$(echo *configdrive.vmdk || true)
-            if [[ -n $config_drive ]]; then
-              extra_qemu_opts+=" -drive id=disk2,file=$config_drive,if=virtio"
-            fi
-
-            echo "Starting qemu..."
-            qemu-kvm -m 4096 -nographic \
-              -drive id=disk1,file=./disk.qcow2,if=virtio \
-              -netdev user,id=net0,restrict=yes,hostfwd=tcp::20022-:22 -device virtio-net-pci,netdev=net0 \
-              $extra_qemu_opts &
-            qemu_pid=$!
-            trap "kill $qemu_pid" EXIT
-
-            if ! [ -e ./vagrant_insecure_key ]; then
-              cp ${./vagrant_insecure_key} vagrant_insecure_key
-            fi
-
-            chmod 0400 ./vagrant_insecure_key
-
-            ssh_opts="-o StrictHostKeyChecking=no -o HostKeyAlgorithms=+ssh-rsa -o PubkeyAcceptedKeyTypes=+ssh-rsa -i ./vagrant_insecure_key"
-            ssh="ssh -p 20022 -q $ssh_opts vagrant@localhost"
-
-            echo "Waiting for SSH..."
-            for ((i = 0; i < 120; i++)); do
-              echo "[ssh] Trying to connect..."
-              if $ssh -- true; then
-                echo "[ssh] Connected!"
-                break
-              fi
-              if ! kill -0 $qemu_pid; then
-                echo "qemu died unexpectedly"
-                exit 1
-              fi
-              sleep 1
-            done
-
-            if [[ -n $postBoot ]]; then
-              echo "Running post-boot commands..."
-              $ssh "set -ex; $postBoot"
-            fi
-
-            echo "Copying package..."
-            scp -r -P 20022 $ssh_opts $package vagrant@localhost:package
-
-            echo "Installing Package..."
-            $ssh "set -eux; $installScript"
-
-            touch $out
-          '';
-    in
     {
-      checks = lib.mapAttrs' (imageName: _image: {
-        name = "package-gui-install-test-${imageName}";
-        value = makeTest imageName "gui";
-      }) images;
+      checks = lib.mkIf (pkgs.hostPlatform.system == "x86_64-linux") {
+        deb-gui-install-test = pkgs.vmTools.runInLinuxVM (
+          pkgs.runCommand "deb-gui-install-test" { } ''
+            ${pkgs.dpkg}/bin/dpkg -i ${self'.checks.package-gui-installer-deb}/*.deb
+            ls -la /usr/bin/clan-app
+            ${pkgs.expect}/bin/expect -c '
+              spawn /usr/bin/clan-app
+              expect "Clan requires Nix to be installed. Would you like to install it now? (y/n)"
+              send "n"
+              expect "Clan cannot run without Nix. Exiting."
+            '
+            touch $out
+          ''
+        );
+      };
     };
 }