From e0849878dd248de8988c2ef3fc941054625712ca Mon Sep 17 00:00:00 2001
From: Mike Sherov <mike.sherov@gmail.com>
Date: Mon, 26 Jun 2017 10:24:17 -0400
Subject: [PATCH] lifecycle: avoid building environment for empty lifecycle
 scripts

Credit: @mikesherov
Reviewed-By: @iarna
PR-URL: https://github.com/npm/npm/pull/17441
---
 lib/utils/lifecycle.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/utils/lifecycle.js b/lib/utils/lifecycle.js
index f8b34d7befada..02ba485aee145 100644
--- a/lib/utils/lifecycle.js
+++ b/lib/utils/lifecycle.js
@@ -60,6 +60,8 @@ function lifecycle (pkg, stage, wd, unsafe, failOk, cb) {
     delete pkg.scripts.prepublish
   }
 
+  if (!pkg.scripts[stage]) return cb()
+
   validWd(wd || path.resolve(npm.dir, pkg.name), function (er, wd) {
     if (er) return cb(er)