1 files changed, 28 insertions, 0 deletions
diff --git a/ci.nix b/ci.nix
new file mode 100644
index 0000000..f05fbed
--- /dev/null
+++ b/ci.nix
@@ -0,0 +1,28 @@
+{self, ...}: {
+  perSystem = {
+    lib,
+    pkgs,
+    system,
+    config,
+    ...
+  }: let
+    # get applicable system configurations
+    configurations = lib.getAttrs ["darwinConfigurations" "homeConfigurations" "nixosConfigurations"] self;
+
+    systems = lib.pipe (builtins.attrValues configurations) [
+      (builtins.foldl' (acc: attr: acc // attr) {})
+      (lib.filterAttrs (_: v: v.pkgs.system == system))
+      (lib.mapAttrsToList (_: v: v.config.system.build.toplevel or v.activationPackage))
+    ];
+  in {
+    checks = {
+      ciGate = pkgs.runCommand "ci-gate" {
+        nativeBuildInputs = lib.concatLists [
+          systems
+          # and other checks
+          (builtins.attrValues (builtins.removeAttrs config.checks ["ciGate"]))
+        ];
+      } "touch $out";
+    };
+  };
+}