1 files changed, 23 insertions, 0 deletions
diff --git a/tvix/utils.nix b/tvix/utils.nix
new file mode 100644
index 000000000000..ed751566bd9c
--- /dev/null
+++ b/tvix/utils.nix
@@ -0,0 +1,23 @@
+{ lib, depot, ... }:
+
+{
+  mkFeaturePowerset = { crateName, features, override ? { } }:
+    let
+      powerset = xs:
+        let
+          addElement = set: element:
+            set ++ map (e: [ element ] ++ e) set;
+        in
+        lib.foldl' addElement [ [ ] ] xs;
+    in
+    lib.listToAttrs (map
+      (featuresPowerset: {
+        name = if featuresPowerset != [ ] then "with-features-${lib.concatStringsSep "-" featuresPowerset}" else "no-features";
+        value = depot.tvix.crates.workspaceMembers.${crateName}.build.override (old: {
+          runTests = true;
+          features = featuresPowerset;
+        } // (if lib.isFunction override then override old else override)
+        );
+      })
+      (powerset features));
+}