From bea5cd182778bca5f46f1cede277369f50998c20 Mon Sep 17 00:00:00 2001
From: Luke Sampson <me@lukesampson.com>
Date: Fri, 24 Mar 2017 19:09:28 +1100
Subject: [PATCH] Persistence: prevent NPM from overwriting node_modules by
 setting read-only attribute on the persisted directory junction.

---
 nodejs.json | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/nodejs.json b/nodejs.json
index 74e4a84b3c..4368445c66 100644
--- a/nodejs.json
+++ b/nodejs.json
@@ -13,9 +13,10 @@
         }
     },
     "env_add_path": "nodejs",
+    "persist": "nodejs/node_modules",
     "post_install": "
 # Remove npmrc that makes global modules get installed in AppData\\Roaming\\npm
-rm $dir\\nodejs\\node_modules\\npm\\npmrc
+if(test-path $dir\\nodejs\\node_modules\\npm\\npmrc) { rm $dir\\nodejs\\node_modules\\npm\\npmrc }
 npm update -g",
     "checkver": {
         "url": "https://nodejs.org/en/download/current/",