From 31d5a5a6996bb99b2107f3aeb18748c3146550e2 Mon Sep 17 00:00:00 2001
From: Chandler Prall <chandler.prall@gmail.com>
Date: Mon, 25 Jun 2018 14:12:46 -0600
Subject: [PATCH] Add check to release script to run only within npm

---
 scripts/release.js | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/scripts/release.js b/scripts/release.js
index 7c117cadf855..e5f0b141c5ff 100644
--- a/scripts/release.js
+++ b/scripts/release.js
@@ -19,6 +19,14 @@ const humanReadableTypes = {
 };
 
 (async function () {
+  // make sure the release script is being run by npm (required for `npm publish` step)
+  // https://github.com/yarnpkg/yarn/issues/5063
+  const packageManagerScript = path.basename(process.env.npm_execpath);
+  if (packageManagerScript !== 'npm-cli.js') {
+    console.error('The release script must be run with npm: npm run release');
+    process.exit(1);
+  }
+
   // ensure git is on the master branch
   await ensureMasterBranch();