Speed up build (#1852)

* single build webpack

* fix demo shell test

ng2-components/config/webpack.test.js

@@ -0,0 +1,85 @@
+const webpack = require('webpack');
+const helpers = require('./helpers');
+
+const ENV = process.env.NODE_ENV = process.env.ENV = 'production';
+
+module.exports = {
+
+    module: {
+        rules: [
+            {
+                test: /\.ts$/,
+                loaders: ['ts-loader', 'angular2-template-loader']
+            },
+            {
+                test: /\.html$/,
+                loader: 'html-loader',
+                exclude: [/node_modules/, /bundles/, /dist/, /demo/]
+            },
+            {
+                test: /\.css$/,
+                loader: ['to-string-loader', 'css-loader'],
+                exclude: [/node_modules/, /bundles/, /dist/, /demo/]
+            },
+            {
+                test: /\.(png|jpe?g|gif|svg|woff|woff2|ttf|eot|ico|pdf)$/,
+                loader: 'file-loader',
+                query: {
+                    name: '[path][name].[ext]',
+                    outputPath: (url)=> {
+                        console.log
+                        return url.replace('src', 'dist');
+                    }
+                }
+            },
+            {
+                enforce: 'post',
+                test: /\.ts$/,
+                loader: 'istanbul-instrumenter-loader',
+                exclude: [
+                    /node_modules/,
+                    /test/,
+                    /spec\.ts$/
+                ]
+            }
+        ]
+    },
+
+    resolve: {
+        extensions: ['.ts', '.js'],
+        symlinks: false,
+        modules: [
+            '../ng2-components', 'node_modules'
+        ]
+    },
+
+    plugins: [
+        new webpack.NoEmitOnErrorsPlugin(),
+
+        // Workaround for angular/angular#11580
+        new webpack.ContextReplacementPlugin(
+            // The (\\|\/) piece accounts for path separators in *nix and Windows
+            /angular(\\|\/)core(\\|\/)(esm(\\|\/)src|src)(\\|\/)linker/,
+            helpers.root('src'), // location of your src
+            {} // a map of your routes
+        ),
+        new webpack.DefinePlugin({
+            'process.env': {
+                'ENV': JSON.stringify(ENV)
+            }
+        }),
+        new webpack.LoaderOptionsPlugin({
+            htmlLoader: {
+                minimize: false // workaround for ng2
+            }
+        })
+
+    ],
+
+    devtool: 'inline-source-map',
+
+    node: {
+        fs: 'empty',
+        module: false
+    }
+};