Merge branch 'nixpkgs-update' into master

1 files changed, 12 insertions, 7 deletions

diff --git a/nixos/lib/build-vms.nix b/nixos/lib/build-vms.nix
index 1bad63b9194..f0a58628c68 100644
--- a/nixos/lib/build-vms.nix
+++ b/nixos/lib/build-vms.nix
@@ -3,8 +3,10 @@
   minimal ? false
 , # Ignored
   config ? null
-  # Nixpkgs, for qemu, lib and more
-, pkgs
+, # Nixpkgs, for qemu, lib and more
+  pkgs
+, # !!! See comment about args in lib/modules.nix
+  specialArgs ? {}
 , # NixOS configuration to add to the VMs
   extraConfigurations ? []
 }:
@@ -16,9 +18,6 @@ rec {
 
   inherit pkgs;
 
-  qemu = pkgs.qemu_test;
-
-
   # Build a virtual network from an attribute set `{ machine1 =
   # config1; ... machineN = configN; }', where `machineX' is the
   # hostname and `configX' is a NixOS system configuration.  Each
@@ -31,13 +30,19 @@ rec {
     nodes: configurations:
 
     import ./eval-config.nix {
-      inherit system;
+      inherit system specialArgs;
       modules = configurations ++ extraConfigurations;
       baseModules =  (import ../modules/module-list.nix) ++
         [ ../modules/virtualisation/qemu-vm.nix
           ../modules/testing/test-instrumentation.nix # !!! should only get added for automated test runs
           { key = "no-manual"; documentation.nixos.enable = false; }
-          { key = "qemu"; system.build.qemu = qemu; }
+          { key = "no-revision";
+            # Make the revision metadata constant, in order to avoid needless retesting.
+            # The human version (e.g. 21.05-pre) is left as is, because it is useful
+            # for external modules that test with e.g. nixosTest and rely on that
+            # version number.
+            config.system.nixos.revision = mkForce "constant-nixos-revision";
+          }
           { key = "nodes"; _module.args.nodes = nodes; }
         ] ++ optional minimal ../modules/testing/minimal-kernel.nix;
     };