From 90c7029144d6441bd8594c7e5c843e3aee583ffb Mon Sep 17 00:00:00 2001
From: Max Howell <max@methylblue.com>
Date: Wed, 29 Jul 2009 00:56:22 +0100
Subject: [PATCH] Fix brew rm

---
 Library/Homebrew/keg.rb | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Library/Homebrew/keg.rb b/Library/Homebrew/keg.rb
index 8330c650f2..f724a068ed 100644
--- a/Library/Homebrew/keg.rb
+++ b/Library/Homebrew/keg.rb
@@ -80,9 +80,13 @@ class Keg
   end
 
   def rm
+    # don't rmtree shit if we aren't positive about our location!
+    raise "Bad stuff!" unless path.parent.parent == $cellar
+
     if path.directory?
       FileUtils.chmod_R 0777, path # ensure we have permission to delete
-      path.rmtree
+      path.rmtree # $cellar/foo/1.2.0
+      path.parent.rmdir if path.parent.children.length == 0 # $cellar/foo
     end
   end