Merge pull request #694 from valpinkman/fix/uglify-mangling

remove mangling when building rendered in production

package.json

@@ -156,6 +156,7 @@
     "prettier": "^1.13.5",
     "react-hot-loader": "^4.3.2",
     "react-test-renderer": "^16.4.1",
+    "uglifyjs-webpack-plugin": "^1.2.6",
     "webpack": "^4.6.0",
     "webpack-bundle-analyzer": "^2.11.1",
     "webpack-cli": "^2.0.14",

scripts/compile.sh

@@ -7,6 +7,6 @@ SENTRY_URL=https://db8f5b9b021048d4a401f045371701cb@sentry.io/274561
 NODE_ENV=production
 
 rm -rf ./node_modules/.cache dist
-yarn
+JOBS=max yarn
 yarn run webpack-cli --mode production --config webpack/internals.config.js
 yarn run electron-webpack

webpack/renderer.config.js

@@ -1,9 +1,29 @@
 const HardSourceWebpackPlugin = require('hard-source-webpack-plugin')
+const UglifyJsPlugin = require('uglifyjs-webpack-plugin')
 
 const plugins = require('./plugins')
 const resolve = require('./resolve')
 const rules = require('./rules')
 
+const getOptimization = env => {
+  const optimization = {
+    minimizer: [
+      // Default Config without mangling
+      new UglifyJsPlugin({
+        parallel: true,
+        sourceMap: true,
+        uglifyOptions: {
+          mangle: false,
+          compress: {
+            ecma: 7,
+          },
+        },
+      }),
+    ],
+  }
+  return env === 'production' ? optimization : undefined
+}
+
 const config = {
   mode: __ENV__,
   plugins: [...plugins('renderer'), new HardSourceWebpackPlugin()],
@@ -14,6 +34,9 @@ const config = {
   devServer: {
     historyApiFallback: true,
   },
+  optimization: {
+    ...getOptimization(__ENV__),
+  },
 }
 
 if (__DEV__) {

yarn.lock

@@ -13797,6 +13797,19 @@ uglifyjs-webpack-plugin@^1.2.4, uglifyjs-webpack-plugin@^1.2.5:
     webpack-sources "^1.1.0"
     worker-farm "^1.5.2"
 
+uglifyjs-webpack-plugin@^1.2.6:
+  version "1.2.6"
+  resolved "https://registry.yarnpkg.com/uglifyjs-webpack-plugin/-/uglifyjs-webpack-plugin-1.2.6.tgz#f4bb44f02431e82b301d8d4624330a6a35729381"
+  dependencies:
+    cacache "^10.0.4"
+    find-cache-dir "^1.0.0"
+    schema-utils "^0.4.5"
+    serialize-javascript "^1.4.0"
+    source-map "^0.6.1"
+    uglify-es "^3.3.4"
+    webpack-sources "^1.1.0"
+    worker-farm "^1.5.2"
+
 uid-number@0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/uid-number/-/uid-number-0.0.6.tgz#0ea10e8035e8eb5b8e4449f06da1c730663baa81"