From 61272e69e935fd96029c922487d1fac0c463c5af Mon Sep 17 00:00:00 2001
From: Sam Swarr <swarr@fb.com>
Date: Mon, 7 Dec 2015 19:22:52 -0800
Subject: [PATCH] Fix race condition in packager list dependencies

Reviewed By: martinbigio

Differential Revision: D2732655

fb-gh-sync-id: 6d3d730b499c183d3f6977a30ec37a799cc17c33
---
 local-cli/dependencies/dependencies.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/local-cli/dependencies/dependencies.js b/local-cli/dependencies/dependencies.js
index 54c1b004f..6a8fbb310 100644
--- a/local-cli/dependencies/dependencies.js
+++ b/local-cli/dependencies/dependencies.js
@@ -104,7 +104,9 @@ function _dependencies(argv, config, resolve, reject) {
             outStream.write(modulePath + '\n');
           }
         });
-        writeToFile && outStream.end();
+        return writeToFile
+          ? Promise.denodeify(outStream.end).bind(outStream)()
+          : Promise.resolve();
         // log('Wrote dependencies to output file');
       });
   }));