From 08b0a686edb87275f0d39331a802295b1b5c4587 Mon Sep 17 00:00:00 2001
From: Corey Johnson <cj@github.com>
Date: Tue, 3 Jul 2012 14:43:56 -0700
Subject: [PATCH] fs.directory returns empty string if path has no parent
 directory

---
 spec/stdlib/fs-spec.coffee | 5 +++--
 src/stdlib/fs.coffee       | 4 +++-
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/spec/stdlib/fs-spec.coffee b/spec/stdlib/fs-spec.coffee
index ad7c29bd9..1ee172c8d 100644
--- a/spec/stdlib/fs-spec.coffee
+++ b/spec/stdlib/fs-spec.coffee
@@ -21,8 +21,9 @@ describe "fs", ->
 
     describe "when called with a directory path", ->
       it "return the path it was given", ->
-        expect(fs.directory(require.resolve('fixtures/dir'))).toBe require.resolve('fixtures')
-        expect(fs.directory(require.resolve('fixtures/dir/'))).toBe require.resolve('fixtures')
+        expect(fs.directory("/a/b/c")).toBe "/a/b"
+        expect(fs.directory("/a")).toBe ""
+        expect(fs.directory("a")).toBe ""
 
   describe ".exists(path)", ->
     it "returns true when path exsits", ->
diff --git a/src/stdlib/fs.coffee b/src/stdlib/fs.coffee
index b873e453f..f39dca80b 100644
--- a/src/stdlib/fs.coffee
+++ b/src/stdlib/fs.coffee
@@ -21,7 +21,9 @@ module.exports =
   # parent directory if the file is a directory. A terminal directory
   # separator is ignored.
   directory: (path) ->
-    path.replace(new RegExp("/#{@base(path)}\/?$"), '')
+    parentPath = path.replace(new RegExp("/#{@base(path)}\/?$"), '')
+    return "" if path == parentPath
+    parentPath
 
   # Returns true if the file specified by path exists
   exists: (path) ->