From 7a09640b20c45cb5a38ec52fd5b47b76a7d6488f Mon Sep 17 00:00:00 2001
From: Sebastian McKenzie <sebmck@gmail.com>
Date: Fri, 15 May 2015 17:34:06 +0100
Subject: [PATCH] add environment to register cache key

---
 src/babel/api/register/node.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/babel/api/register/node.js b/src/babel/api/register/node.js
index 340cfb2a0d..bb8622250b 100644
--- a/src/babel/api/register/node.js
+++ b/src/babel/api/register/node.js
@@ -53,6 +53,9 @@ var compile = function (filename) {
 
   var cacheKey = `${filename}:${JSON.stringify(opts)}:${babel.version}`;
 
+  var env = process.env.BABEL_ENV || process.env.NODE_ENV;
+  if (env) cacheKey += `:${env}`;
+
   if (cache) {
     var cached = cache[cacheKey];
     if (cached && cached.mtime === mtime(filename)) {