From 436a3d04d213360b71fc6edc45983b192def0f0b Mon Sep 17 00:00:00 2001
From: Sujono <sujonochen91@gmail.com>
Date: Mon, 21 May 2018 14:37:05 +0700
Subject: [PATCH] Show warning console if version.js file is missing (#678)

---
 lib/version.js | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/lib/version.js b/lib/version.js
index 0eefc9834502..875db756bb50 100755
--- a/lib/version.js
+++ b/lib/version.js
@@ -33,6 +33,16 @@ program
   })
   .parse(process.argv);
 
+const hasVersionFile = fs.existsSync(CWD + '/pages/en/versions.js');
+if (!hasVersionFile) {
+  console.error(
+    `${chalk.yellow(
+      'No versions.js file found!'
+    )}\nYou should create your versions.js file in pages/en directory.\nPlease refer to https://docusaurus.io/docs/en/versioning.html.`
+  );
+  process.exit(1);
+}
+
 if (typeof version === 'undefined') {
   console.error(
     `${chalk.yellow(