titaniumsdk: Replace deprecated python build tools by the new NodeJS based tool

pkgs/development/mobile/titaniumenv/default.nix

@@ -1,5 +1,25 @@
 {pkgs, pkgs_i686, xcodeVersion ? "5.0"}:
 
+let
+  # We have to use Oracle's JDK. On Darwin, just simply expose the host system's
+  # JDK. According to their docs, OpenJDK is not supported.
+  
+  jdkWrapper = pkgs.stdenv.mkDerivation {
+    name = "jdk-wrapper";
+    buildCommand = ''
+      mkdir -p $out/bin
+      cd $out/bin
+      ln -s /usr/bin/javac
+      ln -s /usr/bin/java
+      ln -s /usr/bin/jarsigner
+      ln -s /usr/bin/jar
+      ln -s /usr/bin/keytool
+    '';
+    setupHook = ''
+      export JAVA_HOME=/usr
+    '';
+  };
+in
 rec {
   androidenv = pkgs.androidenv;
 
@@ -12,7 +32,11 @@ rec {
   };
   
   buildApp = import ./build-app.nix {
-    inherit (pkgs) stdenv jdk;
+    inherit (pkgs) stdenv python;
+    jdk = if pkgs.stdenv.isLinux then pkgs.oraclejdk7
+      else if pkgs.stdenv.isDarwin then jdkWrapper
+      else throw "Platform not supported: ${pkgs.stdenv.system}";
+    inherit (pkgs.nodePackages) titanium;
     inherit (androidenv) androidsdk;
     inherit (xcodeenv) xcodewrapper;
     inherit titaniumsdk;