From 2a354a804868f36dafd645429675b4ba3247b413 Mon Sep 17 00:00:00 2001
From: Matt Saladna <msaladna@apisnetworks.com>
Date: Thu, 21 Jun 2018 16:38:15 -0400
Subject: [PATCH] Add test for NVM_DIR outside nvm.sh Fix symlink traversal

---
 nvm-exec                                        |  3 ++-
 ... exec --lts\" when NVM_DIR differs from nvm" | 17 +++++++++++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)
 create mode 100755 "test/slow/nvm exec/Running \"nvm exec --lts\" when NVM_DIR differs from nvm"

diff --git a/nvm-exec b/nvm-exec
index d95c25c95c6..b806656495e 100755
--- a/nvm-exec
+++ b/nvm-exec
@@ -1,7 +1,8 @@
 #!/usr/bin/env bash
 
 SOURCE=${BASH_SOURCE[0]}
-test -L "$SOURCE" && SOURCE=$(readlink "$SOURCE")
+test -L "$SOURCE" && command cd "$( dirname "$SOURCE" )" && \
+	SOURCE=$(readlink "$SOURCE")
 DIR="$(command cd "$( dirname "$SOURCE" )" && pwd )"
 
 # shellcheck disable=SC1090
diff --git "a/test/slow/nvm exec/Running \"nvm exec --lts\" when NVM_DIR differs from nvm" "b/test/slow/nvm exec/Running \"nvm exec --lts\" when NVM_DIR differs from nvm"
new file mode 100755
index 00000000000..e76f89cace6
--- /dev/null
+++ "b/test/slow/nvm exec/Running \"nvm exec --lts\" when NVM_DIR differs from nvm"	
@@ -0,0 +1,17 @@
+#!/bin/sh
+
+set -ex
+
+die () { echo "$@" ; exit 1; }
+
+INSTPATH="$(mktemp -p "$(pwd)" -d)"
+trap 'test ! -z "${INSTPATH-}" && test -d "$INSTPATH" && rm -rf "$INSTPATH"' EXIT
+declare -x NVM_DIR=$INSTPATH
+\. ../../../nvm.sh
+
+nvm install --lts || die 'nvm install --lts failed'
+nvm exec --lts npm --version || die "`nvm exec` failed to run"
+declare -x NODE_VERSION="$(nvm exec --lts --silent node --version)"
+
+ln -s ../../../../nvm-exec "$INSTPATH/nvm-exec" || die "failed to create a symlink to $INSTPATH/"
+"$INSTPATH/nvm-exec" npm ls > /dev/null || die "`nvm exec` failed to run using nvm-exec helper"
\ No newline at end of file