add airfield, a web-interface for hipache-proxy

pkgs/tools/networking/airfield/default.nix

@@ -0,0 +1,38 @@
+{ stdenv, fetchgit, callPackage, python, utillinux }:
+
+with stdenv.lib;
+
+let 
+  nodePackages = callPackage (import <nixpkgs/pkgs/top-level/node-packages.nix>) {
+    neededNatives = [python] ++ optional (stdenv.isLinux) utillinux;
+    self = nodePackages;
+    generated = ./package.nix;
+  };
+
+in nodePackages.buildNodePackage rec {
+  name = "airfield-${version}";
+  version = "5ae816562a";
+
+  src = [(fetchgit {
+    url = https://github.com/emblica/airfield.git;
+    rev = version;
+    sha256 = "0rv05pq0xdm0d977dc3hg6dam78acymzrdvkxs8ga8xj4vfs5npk";
+  })];
+
+  deps = (filter (v: nixType v == "derivation") (attrValues nodePackages));
+
+  preInstall = ''
+    substituteInPlace node_modules/Airfield/airfield.js \
+        --replace "'./settings'" "process.env.NODE_CONFIG"
+  '';
+
+  passthru.names = ["Airfield"];
+
+  meta = {
+    description = "Airfield is a web-interface for hipache-proxy";
+    license = licenses.mit;
+    homepage = https://github.com/emblica/airfield;
+    maintainers = with maintainers; [offline];
+    platforms = with platforms; linux;
+  };
+}