From a475e24473555d4feec7ed01b55f1c8c35fd6571 Mon Sep 17 00:00:00 2001
From: ZHAO Jinxiang <xiaoxiangmoe@gmail.com>
Date: Sun, 7 Apr 2019 23:11:24 +0800
Subject: [PATCH] change NODE_ENV and PUBLIC_URL into readonly

---
 packages/react-scripts/lib/react-app.d.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/react-scripts/lib/react-app.d.ts b/packages/react-scripts/lib/react-app.d.ts
index e384accba5b..8e1752555a7 100644
--- a/packages/react-scripts/lib/react-app.d.ts
+++ b/packages/react-scripts/lib/react-app.d.ts
@@ -4,8 +4,8 @@
 
 declare namespace NodeJS {
   interface ProcessEnv {
-    NODE_ENV: 'development' | 'production' | 'test';
-    PUBLIC_URL: string;
+    readonly NODE_ENV: 'development' | 'production' | 'test';
+    readonly PUBLIC_URL: string;
   }
 }