From 4e3c99d96ffea3eb8d791b583de7a820a4f26e1e Mon Sep 17 00:00:00 2001
From: Max Howell <max@methylblue.com>
Date: Wed, 7 Mar 2012 17:13:37 +0000
Subject: [PATCH] Don't attempt to cleanup source checkouts

Fixes Homebrew/homebrew#10751.
---
 Library/Homebrew/cmd/cleanup.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Library/Homebrew/cmd/cleanup.rb b/Library/Homebrew/cmd/cleanup.rb
index 0f2a1875d3..ba9745f1aa 100644
--- a/Library/Homebrew/cmd/cleanup.rb
+++ b/Library/Homebrew/cmd/cleanup.rb
@@ -50,6 +50,7 @@ module Homebrew extend self
 
   def clean_cache
     HOMEBREW_CACHE.children.each do |pn|
+      next unless pn.file?
       pn.stem =~ /^(.+)-(.+)$/ # greedy so works even if formula-name has hyphens in it
       if $1 and $2
         f = Formula.factory($1) rescue nil