Merge pull request #290 from GSA/sc_add-uswds

* Update to USWDS v2.0.3

* don't lint uswds imported files

* switch to full import of uswds

* add optimize-css-assets-webpack-plugin

Author: saracope

.eslintignore

@@ -4,4 +4,5 @@ src/components/plugins
 # Ignore dist and docs files
 dist/*
 docs/*
-src/**/**/*.json
+src/**/**/*.json
+styles/uswds/*

config/webpack/webpack.shared.js

@@ -5,6 +5,7 @@ const CopyWebpackPlugin = require('copy-webpack-plugin')
 const DefinePlugin = require('webpack/lib/DefinePlugin')
 const EnvironmentPlugin = require('webpack/lib/EnvironmentPlugin')
 const HtmlWebpackPlugin = require('html-webpack-plugin')
+const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin')
 const sass = require('sass')
 const autoprefixer = require('autoprefixer')
 const mqpacker = require('css-mqpacker')
@@ -55,6 +56,18 @@ const patterns = [
     from: './assets/img',
     to: join(OUTPUT_PATH, '/assets/img')
   },
+  {
+    from: './styles/uswds/img',
+    to: join(OUTPUT_PATH, '/uswds/img')
+  },
+  {
+    from: './styles/uswds/js',
+    to: join(OUTPUT_PATH, '/uswds/js')
+  },
+  {
+    from: './styles/uswds/fonts',
+    to: join(OUTPUT_PATH, '/uswds/fonts')
+  },
   {
     from: './src/components/about-page/html',
     to: join(OUTPUT_PATH, '/src/components/about-page/html')
@@ -236,6 +249,13 @@ module.exports = {
         removeScriptTypeAttributes: true
       }
     }),
+    new OptimizeCSSAssetsPlugin({
+      assetNameRegExp: /\.optimize\.css$/g,
+      cssProcessorPluginOptions: {
+        preset: ['default', { discardComments: { removeAll: true } }]
+      },
+      canPrint: true
+    }),
     new AppManifestWebpackPlugin({
       emitStats: true,
       logo: './assets/img/favicon.png',