Add webpack to nix shell

shell.nix

@@ -17,23 +17,21 @@
 
   withHoogle = true;
 
-  nativeBuildInputs = pkgs.lib.attrValues
-    (import sources.hs-nix-tools { inherit ghc; })
-  ++ [
-    hsPkgs.ahc-pkg.components.exes.ahc-pkg
-    pkgs.binaryen
-    pkgs.cacert
-    pkgs.git
-    pkgs.nodejs_latest
-    pkgs.util-linux
-    pkgs.wabt
-    pkgs.wasmtime
-    pkgs.wizer
-  ];
+  nativeBuildInputs =
+    pkgs.lib.attrValues (import sources.hs-nix-tools { inherit ghc; }) ++ [
+      hsPkgs.ahc-pkg.components.exes.ahc-pkg
+      pkgs.binaryen
+      pkgs.cacert
+      pkgs.git
+      pkgs.nodejs_latest
+      pkgs.util-linux
+      pkgs.wabt
+      pkgs.wasmtime
+      (import ./webpack/default.nix { inherit pkgs; })
+      pkgs.wizer
+    ];
 
-  buildInputs = [
-    pkgs.libffi
-  ];
+  buildInputs = [ pkgs.libffi ];
 
   exactDeps = true;
 

webpack/default.nix

@@ -0,0 +1,26 @@
+{ pkgs ? import <nixpkgs> { } }:
+pkgs.callPackage
+  ({ nodePackages, stdenvNoCC }:
+    let
+      src = ./.;
+      src_configured = stdenvNoCC.mkDerivation {
+        name = "asdf-src-configured";
+        inherit src;
+        nativeBuildInputs = [ nodePackages.node2nix ];
+        buildPhase = "node2nix -l package-lock.json -d -14";
+        installPhase = ''
+          mkdir $out
+          cp \
+            default.nix \
+            node-env.nix \
+            node-packages.nix \
+            package.json \
+            package-lock.json \
+            $out
+        '';
+      };
+      node_dependencies =
+        (import src_configured { inherit pkgs; }).nodeDependencies;
+    in
+    node_dependencies)
+{ }