From 00d94046fe717660f2f4ebd79df1f38646ee82bf Mon Sep 17 00:00:00 2001
From: Johannes Herchen <34076797+jherchen@users.noreply.github.com>
Date: Mon, 8 Nov 2021 09:50:56 +0100
Subject: [PATCH] fix preinstall script (#136638)

detect yarn with .cjs extensions
---
 build/npm/preinstall.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build/npm/preinstall.js b/build/npm/preinstall.js
index 6319e5d1279..34618a58b68 100644
--- a/build/npm/preinstall.js
+++ b/build/npm/preinstall.js
@@ -23,7 +23,7 @@ if (majorYarnVersion < 1 || minorYarnVersion < 10) {
 	err = true;
 }
 
-if (!/yarn[\w-.]*\.js$|yarnpkg$/.test(process.env['npm_execpath'])) {
+if (!/yarn[\w-.]*\.c?js$|yarnpkg$/.test(process.env['npm_execpath'])) {
 	console.error('\033[1;31m*** Please use yarn to install dependencies.\033[0;0m');
 	err = true;
 }