use lodash merge instead of ... to support deep merging

Author: nklayman

index.js

@@ -1,6 +1,7 @@
 const UglifyJSPlugin = require('uglifyjs-webpack-plugin')
 const webpack = require('webpack')
 const Config = require('webpack-chain')
+const merge = require('lodash.merge')
 
 module.exports = (api, options) => {
   // If plugin options are provided in vue.config.js, those will be used. Otherwise it is empty object
@@ -163,11 +164,11 @@ module.exports = (api, options) => {
           .build({
             //   Args parsed with yargs
             ...builderArgs,
-            config: {
-              ...defaultBuildConfig,
+            config: merge(
+              defaultBuildConfig,
               //   User-defined config overwrites defaults
-              ...userBuildConfig
-            }
+              userBuildConfig
+            )
           })
           .then(() => {
             // handle result
@@ -290,7 +291,7 @@ module.exports = (api, options) => {
           if (args.debug) {
             //   Do not launch electron and provide instructions on launching through debugger
             console.log(
-              'Not launching electron as debug argument was passed. You must launch electron though your debugger.'
+              '\nNot launching electron as debug argument was passed. You must launch electron though your debugger.'
             )
             console.log(
               `If you are using Spectron, make sure to set the IS_TEST env variable to true.`

lib/testWithSpectron.js

@@ -1,6 +1,7 @@
 const execa = require('execa')
 const Application = require('spectron').Application
 const electronPath = require('electron')
+const merge = require('lodash.merge')
 const portfinder = require('portfinder')
 
 portfinder.basePort = 9515
@@ -32,18 +33,19 @@ module.exports = (options = {}) =>
         const url = urlMatch[0].split('=')[1]
         let app
         if (!options.noSpectron) {
-          const spectronOptions = {
-            path: electronPath,
-            args: [`${outputDir}/background.js`],
-            env: {
-              IS_TEST: true
+          const spectronOptions = merge(
+            {
+              path: electronPath,
+              args: [`${outputDir}/background.js`],
+              env: {
+                IS_TEST: true
+              },
+              //   Make sure tests do not interfere with each other
+              port: await portfinder.getPortPromise()
             },
-            //   Make sure tests do not interfere with each other
-            port: await portfinder.getPortPromise(),
             // Apply user options
-            ...options.spectronOptions
-          }
-
+            options.spectronOptions
+          )
           // Launch app with spectron
           app = new Application(spectronOptions)
           if (!options.noStart) {

package.json

@@ -27,6 +27,7 @@
     "electron-builder": "^20.18.0",
     "execa": "^0.10.0",
     "fs-extra": "^6.0.1",
+    "lodash.merge": "^4.6.1",
     "spectron": "^3.8.0",
     "uglifyjs-webpack-plugin": "^1.2.5",
     "webpack": "^4.12.0",