Optimize webpack build

package.json

@@ -17,6 +17,9 @@
     "codecov": "codecov -F js",
     "postinstall": "rimraf node_modules/jest-runtime/node_modules/babel-core node_modules/jest-config/node_modules/babel-core"
   },
+  "resolutions": {
+    "uglify-es": "npm:terser"
+  },
   "dependencies": {
     "@babel/runtime": "^7.0.0-beta.55",
     "admin-lte": "^2.4.2",
@@ -52,6 +55,7 @@
     "babel-eslint": "^8.2.6",
     "babel-loader": "^8.0.0-beta.4",
     "babel-plugin-dynamic-import-node": "^2.0.0",
+    "cache-loader": "^1.2.2",
     "codecov": "^3.0.0",
     "copy-webpack-plugin": "^4.5.2",
     "css-loader": "^1.0.0",

webpack.config.js

@@ -1,6 +1,7 @@
 const VueLoaderPlugin = require('vue-loader/lib/plugin');
 const MiniCssExtractPlugin = require('mini-css-extract-plugin');
 const CopyWebpackPlugin = require('copy-webpack-plugin');
+const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
 const WebpackBar = require('webpackbar');
 
 const devMode = !process.argv.includes('-p');
@@ -34,14 +35,17 @@ module.exports = [{
             {
                 test: /\.js$/,
                 exclude: /node_modules/,
-                loader: 'babel-loader',
-                options: {
-                    cacheDirectory: true
-                }
+                use: [
+                    'cache-loader',
+                    'babel-loader'
+                ]
             },
             {
                 test: /\.vue$/,
-                loader: 'vue-loader'
+                use: [
+                    'cache-loader',
+                    'vue-loader'
+                ]
             },
             {
                 test: /\.(css|styl(us)?)$/,
@@ -91,6 +95,15 @@ module.exports = [{
             },
         ]),
     ],
+    optimization: {
+        minimizer: [
+          new UglifyJsPlugin({
+              cache: true,
+              parallel: 4,
+              extractComments: 'lib-license.txt'
+          })
+        ]
+    },
     resolve: {
         extensions: ['.js', '.vue', '.json']
     },

yarn.lock

@@ -1724,6 +1724,15 @@ cache-base@^1.0.1:
     union-value "^1.0.0"
     unset-value "^1.0.0"
 
+cache-loader@^1.2.2:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/cache-loader/-/cache-loader-1.2.2.tgz#6d5c38ded959a09cc5d58190ab5af6f73bd353f5"
+  dependencies:
+    loader-utils "^1.1.0"
+    mkdirp "^0.5.1"
+    neo-async "^2.5.0"
+    schema-utils "^0.4.2"
+
 cached-path-relative@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/cached-path-relative/-/cached-path-relative-1.0.1.tgz#d09c4b52800aa4c078e2dd81a869aac90d2e54e7"
@@ -2034,14 +2043,10 @@ combined-stream@1.0.6, combined-stream@^1.0.5, combined-stream@~1.0.5:
   dependencies:
     delayed-stream "~1.0.0"
 
-commander@^2.9.0:
+commander@^2.9.0, commander@~2.16.0:
   version "2.16.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.16.0.tgz#f16390593996ceb4f3eeb020b31d78528f7f8a50"
 
-commander@~2.13.0:
-  version "2.13.0"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-2.13.0.tgz#6964bca67685df7c1f1430c584f07d7597885b9c"
-
 commondir@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/commondir/-/commondir-1.0.1.tgz#ddd800da0c66127393cca5950ea968a3aaf1253b"
@@ -6526,7 +6531,7 @@ sax@^1.2.4, sax@~1.2.4:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
 
-schema-utils@^0.4.0, schema-utils@^0.4.3, schema-utils@^0.4.4, schema-utils@^0.4.5:
+schema-utils@^0.4.0, schema-utils@^0.4.2, schema-utils@^0.4.3, schema-utils@^0.4.4, schema-utils@^0.4.5:
   version "0.4.5"
   resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-0.4.5.tgz#21836f0608aac17b78f9e3e24daff14a5ca13a3e"
   dependencies:
@@ -6727,7 +6732,7 @@ source-map-support@^0.4.15:
   dependencies:
     source-map "^0.5.6"
 
-source-map-support@^0.5.6:
+source-map-support@^0.5.6, source-map-support@~0.5.6:
   version "0.5.6"
   resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.6.tgz#4435cee46b1aab62b8e8610ce60f788091c51c13"
   dependencies:
@@ -7266,12 +7271,13 @@ typeface-ubuntu@^0.0.54:
   version "0.0.54"
   resolved "https://registry.yarnpkg.com/typeface-ubuntu/-/typeface-ubuntu-0.0.54.tgz#1219d28be0a86b9a2d779e53d8b89d13de911ac3"
 
-uglify-es@^3.3.4:
-  version "3.3.9"
-  resolved "https://registry.yarnpkg.com/uglify-es/-/uglify-es-3.3.9.tgz#0c1c4f0700bed8dbc124cdb304d2592ca203e677"
+uglify-es@^3.3.4, "uglify-es@npm:terser":
+  version "3.8.1"
+  resolved "https://registry.yarnpkg.com/terser/-/terser-3.8.1.tgz#cb70070ac9e0a71add169dfb63c0a64fca2738ac"
   dependencies:
-    commander "~2.13.0"
+    commander "~2.16.0"
     source-map "~0.6.1"
+    source-map-support "~0.5.6"
 
 uglify-js@^2.6:
   version "2.8.29"