unikernel/duniverse/httpun/nix/shell.nix

@@ -0,0 +1,32 @@
+{ pkgs
+, packages
+, stdenv
+, lib
+, release-mode ? false
+}:
+
+let
+  httpunDrvs = lib.filterAttrs (_: value: lib.isDerivation value) packages;
+
+in
+with pkgs;
+
+(mkShell {
+  OCAMLRUNPARAM = "b";
+  nativeBuildInputs =
+    lib.optionals release-mode [
+      cacert
+      curl
+      ocamlPackages.dune-release
+      git
+    ];
+  inputsFrom = lib.attrValues httpunDrvs;
+  buildInputs = with ocamlPackages; [ merlin utop ];
+}).overrideAttrs (o: {
+  propagatedBuildInputs = lib.filter
+    (drv:
+      !(lib.hasAttr "pname" drv) ||
+      drv.pname == null ||
+      !(lib.any (name: name == drv.pname) (lib.attrNames httpunDrvs)))
+    o.propagatedBuildInputs;
+})