From 39d9a42c359df5dbf37c5000af8192f14a280b94 Mon Sep 17 00:00:00 2001
From: Jordan Harband <ljharb@gmail.com>
Date: Tue, 8 Feb 2022 10:40:11 -0800
Subject: [PATCH] [Fix] `install.sh`: error out if the install instructions are
 not followed

---
 install.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/install.sh b/install.sh
index 359d2de..2bf513a 100755
--- a/install.sh
+++ b/install.sh
@@ -10,6 +10,12 @@ nvm_echo() {
   command printf %s\\n "$*" 2>/dev/null
 }
 
+if [ -z "${BASH_VERSION}" ] || [ -n "${ZSH_VERSION}" ]; then
+  # shellcheck disable=SC2016
+  nvm_echo >&2 'Error: the install instructions explicitly say to pipe the install script to `bash`; please follow them'
+  exit 1
+fi
+
 nvm_grep() {
   GREP_OPTIONS='' command grep "$@"
 }