nixos/github-runners: only override pkg if it has a `nodeRuntimes` arg

Older versions of the github-runner package might not have the
`nodeRuntimes` argument yet causing an error as the NixOS module always
tries to override the argument.

The commit makes sure we only override `nodeRuntimes` if the configured
package has a `nodeRuntimes` argument.

1 files changed, 2 insertions, 1 deletions

diff --git a/nixos/modules/services/continuous-integration/github-runner/service.nix b/nixos/modules/services/continuous-integration/github-runner/service.nix
index 535df7f68e07..784aea0edea7 100644
--- a/nixos/modules/services/continuous-integration/github-runner/service.nix
+++ b/nixos/modules/services/continuous-integration/github-runner/service.nix
@@ -22,7 +22,8 @@ with lib;
 
 let
   workDir = if cfg.workDir == null then runtimeDir else cfg.workDir;
-  package = cfg.package.override { inherit (cfg) nodeRuntimes; };
+  # Support old github-runner versions which don't have the `nodeRuntimes` arg yet.
+  package = cfg.package.override (old: optionalAttrs (hasAttr "nodeRuntimes" old) { inherit (cfg) nodeRuntimes; });
 in
 {
   description = "GitHub Actions runner";