From 472322af24e87e60bcdb341383bf8915d222079d Mon Sep 17 00:00:00 2001
From: Jack Nagel <jacknagel@gmail.com>
Date: Tue, 17 Apr 2012 17:08:36 -0500
Subject: [PATCH] Don't attempt to walk nonexistent directories

Fixes Homebrew/homebrew#11298.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
---
 Library/Homebrew/cmd/doctor.rb | 1 +
 Library/Homebrew/cmd/prune.rb  | 1 +
 2 files changed, 2 insertions(+)

diff --git a/Library/Homebrew/cmd/doctor.rb b/Library/Homebrew/cmd/doctor.rb
index bef15affff..a529f74029 100644
--- a/Library/Homebrew/cmd/doctor.rb
+++ b/Library/Homebrew/cmd/doctor.rb
@@ -183,6 +183,7 @@ def check_for_broken_symlinks
   broken_symlinks = []
   %w[lib include sbin bin etc share].each do |d|
     d = HOMEBREW_PREFIX/d
+    next unless d.directory?
     d.find do |pn|
       broken_symlinks << pn if pn.symlink? and pn.readlink.expand_path.to_s =~ /^#{HOMEBREW_PREFIX}/ and not pn.exist?
     end
diff --git a/Library/Homebrew/cmd/prune.rb b/Library/Homebrew/cmd/prune.rb
index 6c6f51549e..75e6026df8 100644
--- a/Library/Homebrew/cmd/prune.rb
+++ b/Library/Homebrew/cmd/prune.rb
@@ -10,6 +10,7 @@ module Homebrew extend self
     dirs = []
 
     %w[bin sbin etc lib include share Library/LinkedKegs].map{ |d| HOMEBREW_PREFIX+d }.each do |path|
+      next unless path.directory?
       path.find do |path|
         path.extend ObserverPathnameExtension
         if path.symlink?