From 20661ca0685953580255d8fcf70a5f89691eceee Mon Sep 17 00:00:00 2001
From: Stan Chang Khin Boon <khinboon@gmail.com>
Date: Tue, 28 Apr 2020 22:38:32 +0800
Subject: [PATCH] fix(babel): Make babel to recognize TypeScript extensions in
 dev mode

This is to fix an issue with child process not inheriting the extensions
option passed to the babel cli.
---
 lib/process/master.js | 5 +++++
 package.json          | 1 +
 2 files changed, 6 insertions(+)

diff --git a/lib/process/master.js b/lib/process/master.js
index bf5899d63..0c7712dbd 100644
--- a/lib/process/master.js
+++ b/lib/process/master.js
@@ -27,6 +27,11 @@ if (!('toJSON' in Error.prototype)) {
 process.on('message', function(msg) {
   switch (msg.cmd) {
     case 'init':
+      if (process.env.NODE_ENV !== 'production') {
+        require('@babel/register').default({
+          extensions: ['.js', '.jsx', '.ts', '.tsx']
+        });
+      }
       processor = require(msg.value);
       if (processor.default) {
         // support es2015 module.
diff --git a/package.json b/package.json
index 0c13b87b1..cabe7e0c5 100644
--- a/package.json
+++ b/package.json
@@ -17,6 +17,7 @@
   "license": "MIT",
   "readmeFilename": "README.md",
   "dependencies": {
+    "@babel/register": "^7.7.7",
     "bluebird": "^3.5.3",
     "cron-parser": "^2.5.0",
     "debuglog": "^1.0.0",