From 612230a7051c5b16b8be55d559afe230b921e387 Mon Sep 17 00:00:00 2001
From: Mike McQuaid <mike@mikemcquaid.com>
Date: Sun, 14 Dec 2014 10:17:29 +0000
Subject: [PATCH] doctor: check cache directory is writable.

Fixes Homebrew/homebrew#32304.
Fixes Homebrew/homebrew#34933.
---
 Library/Homebrew/cmd/doctor.rb | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Library/Homebrew/cmd/doctor.rb b/Library/Homebrew/cmd/doctor.rb
index 820dd88973..eef6282450 100644
--- a/Library/Homebrew/cmd/doctor.rb
+++ b/Library/Homebrew/cmd/doctor.rb
@@ -462,6 +462,19 @@ def check_access_logs
   end
 end
 
+def check_access_cache
+  if HOMEBREW_CACHE.exist? && !HOMEBREW_CACHE.writable_real?
+    <<-EOS.undent
+      #{HOMEBREW_CACHE} isn't writable.
+      This can happen if you ran `brew install` or `brew fetch` as another user.
+
+      Homebrew caches downloaded files to this location.
+
+      You should probably `chown` #{HOMEBREW_CACHE}
+    EOS
+  end
+end
+
 def check_ruby_version
   ruby_version = MacOS.version >= "10.9" ? "2.0" : "1.8"
   if RUBY_VERSION[/\d\.\d/] != ruby_version then <<-EOS.undent