Change webpack mode config

- #11

package.json

@@ -4,8 +4,8 @@
   "license": "MIT",
   "scripts": {
     "start": "npm run build:server && npm run build:client && node ./static/server.bundle.js",
-    "build:server": "webpack --mode=production --config ./webpack.server.js",
-    "build:client": "webpack --mode=production --config ./webpack.client.js"
+    "build:server": "webpack --config ./webpack.server.js",
+    "build:client": "webpack --config ./webpack.client.js"
   },
   "devDependencies": {
     "@babel/core": "7.4.5",

webpack.client.js

@@ -6,6 +6,11 @@ const CompressionWebpackPlugin = require('compression-webpack-plugin');
 const moduleRules = require('./webpack.module');  
 const MiniCssExtractPlugin = require('mini-css-extract-plugin');
 const hotMiddlewareScript = `webpack-hot-middleware/client?path=/__webpack_hmr&timeout=20000&reload=true`;
+const IS_PRODUCTION = process.env.NODE_ENV === 'production'
+
+const getMode = () => (
+  IS_PRODUCTION ? 'production' : 'development'
+)
 
 const getOutputConfig = (name) => ({
   filename: '[name].bundle.js',
@@ -27,6 +32,7 @@ const clientConfig = {
   entry: [hotMiddlewareScript,'./client/src/index.tsx'],
   target: 'web',
   name: 'web',
+  mode: getMode(),
   output: getOutputConfig('web'),
   module: {
     rules: moduleRules
@@ -65,6 +71,7 @@ const nodeRenderConfig = {
   name: 'node',
   entry: [pathResolve( './client/src/routes/index.tsx')],
   output: getOutputConfig('node'),
+  mode: getMode(),
   externals: ['@loadable/component', nodeExternals()],
   module: {
     rules: moduleRules