unikernel/duniverse/ocaml-h2/nix/shell.nix

@@ -0,0 +1,40 @@
+{ packages
+, mkShell
+, stdenv
+, lib
+, cacert
+, curl
+, ocamlPackages
+, git
+, h2spec
+, release-mode ? false
+}:
+
+let
+  h2Drvs = lib.filterAttrs (_: value: lib.isDerivation value) packages;
+
+in
+
+
+(mkShell {
+  inputsFrom = lib.attrValues h2Drvs;
+  buildInputs =
+    (if release-mode then [
+      cacert
+      curl
+      ocamlPackages.dune-release
+      git
+    ] else [ ])
+    ++ (with ocamlPackages; [
+      merlin
+      ocamlformat
+      utop
+      h2spec
+      httpun-lwt-unix
+      tls-lwt
+    ]);
+}).overrideAttrs (o: {
+  propagatedBuildInputs = lib.filter
+    (drv: drv.pname == null || !(lib.any (name: name == drv.pname) (lib.attrNames h2Drvs)))
+    o.propagatedBuildInputs;
+})