From b87dfb964cd8121e551009f24a95aeb4afa3f017 Mon Sep 17 00:00:00 2001
From: Cheng Zhao <zcbenz@gmail.com>
Date: Tue, 30 Sep 2014 14:57:49 +0800
Subject: [PATCH] asar: Add support in fs.realpath

---
 atom/common/lib/asar.coffee | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/atom/common/lib/asar.coffee b/atom/common/lib/asar.coffee
index 665e759b34..114e1942f1 100644
--- a/atom/common/lib/asar.coffee
+++ b/atom/common/lib/asar.coffee
@@ -122,6 +122,25 @@ fs.realpathSync = (p) ->
 
   path.join realpathSync(asarPath), real
 
+realpath = fs.realpath
+fs.realpath = (p, cache, callback) ->
+  [isAsar, asarPath, filePath] = splitPath p
+  return realpath.apply this, arguments unless isAsar
+
+  if typeof cache is 'function'
+    callback = cache
+    cache = undefined
+
+  archive = getOrCreateArchive asarPath
+  return callback new Error("Invalid package #{asarPath}") unless archive
+
+  real = archive.realpath filePath
+  return callback createNotFoundError(asarPath, filePath) unless real
+
+  realpath asarPath, (err, p) ->
+    return callback err if err
+    callback null, path.join(p, real)
+
 exists = fs.exists
 fs.exists = (p, callback) ->
   [isAsar, asarPath, filePath] = splitPath p