Initial commit

flake/den/templates/examples/modules/_example/ci/user-host-conditional-os.nix

@@ -0,0 +1,38 @@
+{ lib, ... }:
+let
+
+  # Example: configuration that depends on both host and user. provides anytime { user, host } is in context.
+  user-to-host-conditional =
+    { user, host, ... }:
+    if user.userName == "alice" && !lib.hasSuffix "darwin" host.system then
+      {
+        nixos.programs.tmux.enable = true;
+      }
+    else
+      { };
+in
+{
+
+  # Example: user provides parametric host configuration.
+  den.aspects.alice.includes = [
+    user-to-host-conditional
+  ];
+
+  perSystem =
+    {
+      checkCond,
+      rockhopper,
+      honeycrisp,
+      ...
+    }:
+    {
+      checks.alice-os-tmux-enabled-on = checkCond "os tmux for hosts having alice" (
+        rockhopper.config.programs.tmux.enable
+      );
+      checks.alice-os-tmux-enabled-off = checkCond "os tmux for hosts having alice" (
+        !honeycrisp.config.programs.tmux.enable
+      );
+
+    };
+
+}