1 files changed, 34 insertions, 0 deletions
diff --git a/parts/ci.nix b/parts/ci.nix
new file mode 100644
index 0000000..5ddc81c
--- /dev/null
+++ b/parts/ci.nix
@@ -0,0 +1,34 @@
+{self, ...}: {
+  perSystem = {
+    lib,
+    pkgs,
+    system,
+    self',
+    ...
+  }: {
+    packages = {
+      ciGate = let
+        toTopLevel = cfg: cfg.config.system.build.toplevel or cfg.activationPackage;
+        isCompatible = cfg: cfg.pkgs.system == system;
+
+        configurations =
+          map
+          (type:
+            lib.mapAttrs (lib.const toTopLevel)
+            (lib.filterAttrs (lib.const isCompatible) self.${type}))
+          [
+            "nixosConfigurations"
+            "darwinConfigurations"
+            "homeConfigurations"
+          ];
+
+        required = lib.concatMap lib.attrValues (
+          lib.flatten [self'.checks self'.devShells configurations]
+        );
+      in
+        pkgs.writeText "ci-gate" (
+          lib.concatMapStringsSep "\n" toString required
+        );
+    };
+  };
+}