From c4cb95f2d75eee27267e9936d3c56cfbe0c16f92 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mart=C3=ADn=20Bigio?= <martinb@fb.com>
Date: Tue, 22 Sep 2015 15:18:34 -0700
Subject: [PATCH] Add logging information when client's socket gets closed
 unexpetedly

Reviewed By: @amasad

Differential Revision: D2468293
---
 .../react-packager/src/SocketInterface/SocketClient.js    | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/packager/react-packager/src/SocketInterface/SocketClient.js b/packager/react-packager/src/SocketInterface/SocketClient.js
index 837e7a2c2..ca34150e2 100644
--- a/packager/react-packager/src/SocketInterface/SocketClient.js
+++ b/packager/react-packager/src/SocketInterface/SocketClient.js
@@ -46,7 +46,13 @@ class SocketClient {
 
     this._sock.on('close', () => {
       if (!this._closing) {
-        throw new Error('Server closed unexpectedly' + getServerLogs());
+        const sockPathExists = fs.existsSync(sockPath);
+        throw new Error(
+          'Server closed unexpectedly.\n' +
+          'Socket path: `' + sockPath + '` ' +
+          (sockPathExists ? ' exists.' : 'doesn\'t exist') + '\n' +
+          getServerLogs()
+        );
       }
     });
   }