From 2069e8ac43c4765f1698091d3985ecb70ba88089 Mon Sep 17 00:00:00 2001
From: Dan Abramov <dan.abramov@gmail.com>
Date: Sat, 27 May 2017 12:37:07 +0100
Subject: [PATCH] Consistently set environment variables (#2382)

---
 packages/react-scripts/scripts/build.js | 1 +
 packages/react-scripts/scripts/start.js | 6 ++++--
 packages/react-scripts/scripts/test.js  | 2 ++
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/packages/react-scripts/scripts/build.js b/packages/react-scripts/scripts/build.js
index bc46c71d6da..a83d287ded4 100644
--- a/packages/react-scripts/scripts/build.js
+++ b/packages/react-scripts/scripts/build.js
@@ -11,6 +11,7 @@
 'use strict';
 
 // Do this as the first thing so that any code reading it knows the right env.
+process.env.BABEL_ENV = 'production';
 process.env.NODE_ENV = 'production';
 
 // Makes the script crash on unhandled rejections instead of silently
diff --git a/packages/react-scripts/scripts/start.js b/packages/react-scripts/scripts/start.js
index a451228df8b..b86943b4d9d 100644
--- a/packages/react-scripts/scripts/start.js
+++ b/packages/react-scripts/scripts/start.js
@@ -10,6 +10,10 @@
 // @remove-on-eject-end
 'use strict';
 
+// Do this as the first thing so that any code reading it knows the right env.
+process.env.BABEL_ENV = 'development';
+process.env.NODE_ENV = 'development';
+
 // Makes the script crash on unhandled rejections instead of silently
 // ignoring them. In the future, promise rejections that are not handled will
 // terminate the Node.js process with a non-zero exit code.
@@ -17,8 +21,6 @@ process.on('unhandledRejection', err => {
   throw err;
 });
 
-process.env.NODE_ENV = 'development';
-
 // Ensure environment variables are read.
 require('../config/env');
 
diff --git a/packages/react-scripts/scripts/test.js b/packages/react-scripts/scripts/test.js
index ef333e6c004..e9adb48f0b5 100644
--- a/packages/react-scripts/scripts/test.js
+++ b/packages/react-scripts/scripts/test.js
@@ -10,6 +10,8 @@
 // @remove-on-eject-end
 'use strict';
 
+// Do this as the first thing so that any code reading it knows the right env.
+process.env.BABEL_ENV = 'test';
 process.env.NODE_ENV = 'test';
 process.env.PUBLIC_URL = '';