From 8dfb75cfe811b8741218c19f56bd9ff5d1425daa Mon Sep 17 00:00:00 2001
From: Andrew Bradley <cspotcode@gmail.com>
Date: Tue, 4 Aug 2020 17:57:32 -0400
Subject: [PATCH] NODE_NO_READLINE support (#1090)

* NODE_NO_READLINE support

https://nodejs.org/api/repl.html#repl_using_the_node_js_repl_with_advanced_line_editors

* Update bin.ts

* Update bin.ts

* Update bin.ts

* Update bin.ts
---
 src/bin.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/bin.ts b/src/bin.ts
index ee3380ffc..13c19c38a 100644
--- a/src/bin.ts
+++ b/src/bin.ts
@@ -363,7 +363,8 @@ function startRepl (service: Register, state: EvalState, code?: string) {
     prompt: '> ',
     input: process.stdin,
     output: process.stdout,
-    terminal: process.stdout.isTTY,
+    // Mimicking node's REPL implementation: https://github.com/nodejs/node/blob/168b22ba073ee1cbf8d0bcb4ded7ff3099335d04/lib/internal/repl.js#L28-L30
+    terminal: process.stdout.isTTY && !parseInt(process.env.NODE_NO_READLINE!, 10),
     eval: replEval,
     useGlobal: true
   })