1 files changed, 32 insertions, 0 deletions
diff --git a/ci.nix b/ci.nix
new file mode 100644
index 0000000..f3ec82a
--- /dev/null
+++ b/ci.nix
@@ -0,0 +1,32 @@
+{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
+      );
+  };
+}