From 87e875b8bdc84015b38f44bb6d45bbd70d94663b Mon Sep 17 00:00:00 2001
From: Joshua Peek <josh@joshpeek.com>
Date: Tue, 31 Jul 2012 01:52:57 -0500
Subject: [PATCH] Ensure brew exists before running outdated check

---
 homebrew/recipes/upgrade.rb | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/homebrew/recipes/upgrade.rb b/homebrew/recipes/upgrade.rb
index eee524b..ebff30a 100644
--- a/homebrew/recipes/upgrade.rb
+++ b/homebrew/recipes/upgrade.rb
@@ -1,8 +1,10 @@
 include_recipe "homebrew"
 
-`#{node[:homebrew][:prefix]}/bin/brew outdated`.lines.each do |line|
-  package line.chomp do
-    action :upgrade
-    notifies :run, resources(:execute => "brew cleanup"), :delayed
+if File.exist?("#{node[:homebrew][:prefix]}/bin/brew")
+  `#{node[:homebrew][:prefix]}/bin/brew outdated`.lines.each do |line|
+    package line.chomp do
+      action :upgrade
+      notifies :run, resources(:execute => "brew cleanup"), :delayed
+    end
   end
 end