markdalgleish · steven-haddix · Oct 27, 2016 · Oct 27, 2016 · Oct 27, 2016 · Nov 9, 2016
diff --git a/index.js b/index.js
@@ -2,6 +2,7 @@ var RawSource = require('webpack-sources/lib/RawSource');
 var evaluate = require('eval');
 var path = require('path');
 var Promise = require('bluebird');
+var vm = require('vm');
 
 function StaticSiteGeneratorWebpackPlugin(renderSrc, outputPaths, locals, scope) {
   this.renderSrc = renderSrc;
@@ -27,11 +28,12 @@ StaticSiteGeneratorWebpackPlugin.prototype.apply = function(compiler) {
           throw new Error('Source file not found: "' + self.renderSrc + '"');
         }
 
+        var scope = loadChunkAssetsToScope(self.scope, compilation, webpackStatsJson);
+
         var assets = getAssetsFromCompilation(compilation, webpackStatsJson);
 
         var source = asset.source();
-        var render = evaluate(source, /* filename: */ self.renderSrc, /* scope: */ self.scope, /* includeGlobals: */ true);
-
+        var render = evaluate(source, /* filename: */ self.renderSrc, /* scope: */ scope, /* includeGlobals: */ true);
         if (render.hasOwnProperty('default')) {
           render = render['default'];
         }
@@ -81,6 +83,50 @@ StaticSiteGeneratorWebpackPlugin.prototype.apply = function(compiler) {
   });
 };
 
+function merge (a, b) {
+  if (!a || !b) return a
+  var keys = Object.keys(b)
+  for (var k, i = 0, n = keys.length; i < n; i++) {
+    k = keys[i]
+    a[k] = b[k]
+  }
+  return a
+}
+
+/*
+ * Function to handle commonschunk plugin. Currently only supports a manifest file and single external
+ * library file name vendor.
+ */
+var loadChunkAssetsToScope = function(scope, compilation, webpackStatsJson) {
+  var manifest = findAsset('manifest', compilation, webpackStatsJson);
+  var vendor = findAsset('vendor', compilation, webpackStatsJson);
+
+  if (!manifest || !vendor) {
+    return scope;
+  }
+
+  if(!scope) {
+    scope = {};
+  }
+
+  if (!scope.window) {
+    scope.window = {};
+  }
+
+  var sandbox = {};
+  merge(sandbox, scope);
+
+  var manifestScript = new vm.Script(manifest.source());
+  manifestScript.runInNewContext(sandbox, {});
+
+  merge(sandbox, sandbox.window)
+
+  var vendorScript = new vm.Script(vendor.source());
+  vendorScript.runInNewContext(sandbox, {});
+
+  return sandbox.window;
+}
+
 var findAsset = function(src, compilation, webpackStatsJson) {
   var asset = compilation.assets[src];
 

diff --git a/test/success-cases/commonschunk/expected-output/foo/bar/index.html b/test/success-cases/commonschunk/expected-output/foo/bar/index.html
@@ -0,0 +1,5 @@
+<html>
+  <body>
+    <h1>/foo/bar</h1>
+  </body>
+</html>
diff --git a/test/success-cases/commonschunk/expected-output/foo/index.html b/test/success-cases/commonschunk/expected-output/foo/index.html
@@ -0,0 +1,5 @@
+<html>
+  <body>
+    <h1>/foo</h1>
+  </body>
+</html>
diff --git a/test/success-cases/commonschunk/expected-output/index.html b/test/success-cases/commonschunk/expected-output/index.html
@@ -0,0 +1,5 @@
+<html>
+  <body>
+    <h1>/</h1>
+  </body>
+</html>
diff --git a/test/success-cases/commonschunk/index.js b/test/success-cases/commonschunk/index.js
@@ -0,0 +1,5 @@
+module.exports = function(locals, callback) {
+  setTimeout(function() {
+    callback(null, locals.template({ html: '<h1>' + locals.path + '</h1>' }));
+  }, 10);
+};
diff --git a/test/success-cases/commonschunk/template.ejs b/test/success-cases/commonschunk/template.ejs
@@ -0,0 +1,5 @@
+<html>
+  <body>
+    <%- html %>
+  </body>
+</html>
diff --git a/test/success-cases/commonschunk/webpack.config.js b/test/success-cases/commonschunk/webpack.config.js
@@ -0,0 +1,35 @@
+var StaticSiteGeneratorPlugin = require('../../../');
+var StatsWriterPlugin = require("webpack-stats-plugin").StatsWriterPlugin;
+var webpack = require('webpack');
+var ejs = require('ejs');
+var fs = require('fs');
+
+var template = ejs.compile(fs.readFileSync(__dirname + '/template.ejs', 'utf-8'))
+
+var paths = [
+  '/',
+  '/foo',
+  '/foo/bar'
+];
+
+module.exports = {
+  entry: {
+    index: __dirname + '/index.js',
+    vendor: 'bluebird'
+  },
+
+  output: {
+    filename: '[name].js',
+    path: __dirname + '/actual-output',
+    libraryTarget: 'umd'
+  },
+
+  plugins: [
+    new webpack.optimize.CommonsChunkPlugin({
+      names: ['vendor', 'manifest'],
+      minChunks: Infinity
+    }),
+    new StaticSiteGeneratorPlugin('index.js', paths, { template: template }),
+    new StatsWriterPlugin() // Causes the asset's `size` method to be called
+  ]
+};