From e0b9991a8c0fa415998a3216249d7cf9dfbc7315 Mon Sep 17 00:00:00 2001
From: Michael Neeley <micneeley14@gmail.com>
Date: Thu, 30 Sep 2021 15:00:27 -0700
Subject: [PATCH] Fixes Global Node Prefix Error (#31740)

Summary:
Some users have `node` installed globally which sets a `PREFIX` by default (so it knows where to put pkgs). We are looking for the "right" node on the next step anyway and if the user is using `nvm`, `PREFIX` breaks it.

closes https://github.com/facebook/react-native/issues/31181

## Changelog

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[General] [Fixed] - Ignores global npm prefix

Pull Request resolved: https://github.com/facebook/react-native/pull/31740

Test Plan:
`yarn ios` now works, even if there's a `usr/local/bin/npm`

<img width="493" alt="Screen Shot 2021-06-17 at 10 14 08 AM" src="https://user-images.githubusercontent.com/2659478/122413946-c2f57200-cf54-11eb-817c-bd3c07ac50bf.png">

Reviewed By: yungsters

Differential Revision: D31237363

Pulled By: charlesbdudley

fbshipit-source-id: 4ee9c04f8b8ab4e815bafbe2d02e589d621577b4
---
 scripts/find-node.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/scripts/find-node.sh b/scripts/find-node.sh
index 69e6ac232576cd..1f7345b61cac34 100755
--- a/scripts/find-node.sh
+++ b/scripts/find-node.sh
@@ -6,6 +6,10 @@
 
 set -e
 
+# remove global prefix if it's already set
+# the running shell process will choose a node binary and a global package directory breaks version managers
+unset PREFIX
+
 # Support Homebrew on M1
 HOMEBREW_M1_BIN=/opt/homebrew/bin
 if [[ -d $HOMEBREW_M1_BIN && ! $PATH =~ $HOMEBREW_M1_BIN ]]; then