From bab72a03d1cf43d2deeba464c5ef3ded5ccf3306 Mon Sep 17 00:00:00 2001
From: Ben Newman <ben@meteor.com>
Date: Sat, 7 May 2016 13:07:36 -0400
Subject: [PATCH] Implement files.exists in terms of file.statOrNull.

The hitherto-underlying fs.exists function has been deprecated in Node v4.

Part of #6921.
---
 tools/fs/files.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tools/fs/files.js b/tools/fs/files.js
index e3fea8ca88..fb0313c911 100644
--- a/tools/fs/files.js
+++ b/tools/fs/files.js
@@ -1425,9 +1425,14 @@ wrapFsFunc("readFile", [0], {
 });
 wrapFsFunc("stat", [0]);
 wrapFsFunc("lstat", [0]);
-wrapFsFunc("exists", [0], {noErr: true});
 wrapFsFunc("rename", [0, 1]);
 
+// The fs.exists method is deprecated in Node v4:
+// https://nodejs.org/api/fs.html#fs_fs_exists_path_callback
+files.exists = function (path) {
+  return !! files.statOrNull(path);
+};
+
 if (process.platform === "win32") {
   var rename = files.rename;