sanitizes config before build

src/bin/build.js

@@ -4,12 +4,14 @@
 const webpack = require('webpack');
 const getWebpackProdConfig = require('../webpack/getWebpackProdConfig');
 const findConfig = require('../utilities/findConfig');
+const sanitizeConfig = require('../utilities/sanitizeConfig');
 
 module.exports = () => {
   const configPath = findConfig();
 
   try {
-    const config = require(configPath);
+    const unsanitizedConfig = require(configPath);
+    const config = sanitizeConfig(unsanitizedConfig);
 
     const webpackProdConfig = getWebpackProdConfig({
       ...config,

src/client/components/customComponents.js

@@ -24,7 +24,7 @@ function recursivelyAddFieldComponents(fields) {
         };
       }
 
-      if (field.components || field.fields) {
+      if (field.admin.components || field.fields) {
         const fieldComponents = {
           ...(field.admin.components || {}),
         };

src/utilities/sanitizeConfig.js

@@ -38,6 +38,7 @@ const sanitizeConfig = (config) => {
 
   sanitizedConfig.components = { ...(config.components || {}) };
   sanitizedConfig.hooks = { ...(config.hooks || {}) };
+  sanitizedConfig.admin = { ...(config.admin || {}) };
 
   return sanitizedConfig;
 };

src/webpack/getWebpackProdConfig.js

@@ -2,6 +2,7 @@ const HtmlWebpackPlugin = require('html-webpack-plugin');
 const Dotenv = require('dotenv-webpack');
 // const { BundleAnalyzerPlugin } = require('webpack-bundle-analyzer');
 const webpack = require('webpack');
+const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
 const path = require('path');
 const getStyleLoaders = require('./getStyleLoaders');
 
@@ -15,6 +16,9 @@ module.exports = (config) => {
       publicPath: `${config.routes.admin}/`,
       filename: '[name].[chunkhash].js',
     },
+    optimization: {
+      minimizer: [new UglifyJsPlugin()],
+    },
     mode: 'production',
     resolveLoader: { modules: ['node_modules', path.join(__dirname, '../../node_modules')] },
     module: {
@@ -124,7 +128,6 @@ module.exports = (config) => {
     new Dotenv({
       silent: true,
     }),
-    new webpack.optimize.UglifyJSPlugin(),
   ];
 
   if (config.webpackIgnorePlugin instanceof RegExp) {