From e76b2945c59727ed69edcdb5d2830af96c630b07 Mon Sep 17 00:00:00 2001
From: Jordan Harband <ljharb@gmail.com>
Date: Mon, 21 Dec 2020 23:03:30 -0800
Subject: [PATCH] [Fix] relax `$PREFIX` checking, to accomodate `npm exec`

Fixes #2379.
---
 nvm.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/nvm.sh b/nvm.sh
index 2e85e6a..4646dd9 100644
--- a/nvm.sh
+++ b/nvm.sh
@@ -2338,7 +2338,8 @@ nvm_die_on_prefix() {
 
   # npm first looks at $PREFIX (case-sensitive)
   # we do not bother to test the value here; if this env var is set, unset it to continue.
-  if [ -n "${PREFIX-}" ]; then
+  # however, `npm exec` in npm v7.2+ sets $PREFIX; if set, inherit it
+  if [ -n "${PREFIX-}" ] && [ "$(nvm_version_path $(node -v))" != "${PREFIX}" ]; then
     nvm deactivate >/dev/null 2>&1
     nvm_err "nvm is not compatible with the \"PREFIX\" environment variable: currently set to \"${PREFIX}\""
     nvm_err 'Run `unset PREFIX` to unset it.'