Include unbundled build in gulpfile

generators/app/gulpfile.js

@@ -21,6 +21,8 @@ const swPrecacheConfig = require('./sw-precache-config.js');
 const polymerJson = require('./polymer.json');
 const polymerProject = new polymerBuild.PolymerProject(polymerJson);
 const buildDirectory = 'build';
+const bundledDirectory =  buildDirectory + '/bundled';
+const unbundledDirectory =  buildDirectory + '/unbundled';
 
 /**
  * Waits for the given ReadableStream
@@ -63,23 +65,36 @@ function build() {
             console.log('Analyzing build dependencies...');
           });
 
-        // If you want bundling, pass the stream to polymerProject.bundler.
+        // Pipe the unbundled build to the unbundled directory
+        buildStream = buildStream.pipe(gulp.dest(unbundledDirectory));
+
+        // Pass the stream to polymerProject.bundler.
         // This will bundle dependencies into your fragments so you can lazy
         // load them.
         buildStream = buildStream.pipe(polymerProject.bundler);
 
-        // Okay, time to pipe to the build directory
-        buildStream = buildStream.pipe(gulp.dest(buildDirectory));
+        // Okay, time to pipe to bundled build the bundled directory
+        buildStream = buildStream.pipe(gulp.dest(bundledDirectory));
 
         // waitFor the buildStream to complete
         return waitFor(buildStream);
       })
       .then(() => {
-        // Okay, now let's generate the Service Worker
-        console.log('Generating the Service Worker...');
+        // Okay, now let's generate the unbundled Service Worker
+        console.log(`Generating the ${unbundledDirectory} Service Worker...`);
+        return polymerBuild.addServiceWorker({
+          project: polymerProject,
+          buildRoot: unbundledDirectory,
+          bundled: false,
+          swPrecacheConfig: swPrecacheConfig
+        });
+      })
+      .then(() => {
+        // Okay, now let's generate the bundled Service Worker
+        console.log(`Generating the ${bundledDirectory} Service Worker...`);
         return polymerBuild.addServiceWorker({
           project: polymerProject,
-          buildRoot: buildDirectory,
+          buildRoot: bundledDirectory,
           bundled: true,
           swPrecacheConfig: swPrecacheConfig
         });