fix: uglifyjs-webpack-plugin repeat and open cache

Author: hubcarl

config/config.js

@@ -15,7 +15,10 @@ exports.config = {
     check: false
   },
   loaders: {},
-  plugins: {}
+  plugins: {},
+  optimization: {
+    minimize: false
+  }
 };
 
 exports.devConfig = {

config/plugin.js

@@ -98,10 +98,14 @@ exports.runtime = {
 };
 
 exports.uglifyJs = {
-  enable: true,
+  enable() {
+    const config = this.config;
+    return !(config.optimization && config.optimization.minimize);
+  },
   env: ['prod'],
   name: 'uglifyjs-webpack-plugin',
   args: {
+    cache: true,
     parallel: UGLIFYJS_WORKERS,
     uglifyOptions: {
       warnings: false,