From 00e2d628471e8641c3a6bb11b16c405446a85131 Mon Sep 17 00:00:00 2001
From: isaacs <i@izs.me>
Date: Thu, 28 Oct 2010 15:46:06 -0700
Subject: [PATCH] Add a helpful message for when someone does "node npm.js"

---
 npm.js | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/npm.js b/npm.js
index 2fc8c15b39e..b56d19d77b3 100644
--- a/npm.js
+++ b/npm.js
@@ -1,6 +1,14 @@
 
 process.title = "npm"
 
+if (require.main === module) {
+  console.error(["It looks like you're doing 'node npm.js'."
+                ,"Don't do that.  Instead, run 'make install'"
+                ,"and then use the 'npm' command line utility."
+                ].join("\n"))
+  process.exit(1)
+}
+
 var npm = exports
   , config = require("./lib/config")
   , set = require("./lib/utils/set")