From 05bc41389f5306c8d3ee090b8db4e8799b11e855 Mon Sep 17 00:00:00 2001
From: Christopher Willis-Ford <cwillisf@media.mit.edu>
Date: Tue, 8 Jan 2019 14:35:50 -0800
Subject: [PATCH] Autodetect electron version for @babel/preset-env

---
 webpack.makeConfig.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/webpack.makeConfig.js b/webpack.makeConfig.js
index 2b80475..5399438 100644
--- a/webpack.makeConfig.js
+++ b/webpack.makeConfig.js
@@ -1,8 +1,14 @@
+const childProcess = require('child_process');
+
+const electronPath = require('electron');
 const webpack = require('webpack');
 const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
 
 const isProduction = (process.env.NODE_ENV === 'production');
 
+const electronVersion = childProcess.execSync(`${electronPath} --version`, {encoding: 'utf8'}).trim();
+console.log(`Targeting Electron ${electronVersion}`);
+
 const makeConfig = function (options) {
     // eslint-disable-next-line no-console
     console.log(`Module "${options.name}" building in production mode? ${isProduction}`);
@@ -16,7 +22,7 @@ const makeConfig = function (options) {
             '@babel/plugin-proposal-object-rest-spread'
         ],
         presets: [
-            ['@babel/preset-env', {targets: {electron: '3.0.13'}}]
+            ['@babel/preset-env', {targets: {electron: electronVersion}}]
         ]
     };