From 4ce8bdb32c027fbace6bf019f4846b44e899d5cf Mon Sep 17 00:00:00 2001
From: Jack Nagel <jacknagel@gmail.com>
Date: Wed, 1 Feb 2012 22:36:07 -0600
Subject: [PATCH] prune: remove info dir entries for pruned files

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
---
 Library/Homebrew/cmd/prune.rb | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/Library/Homebrew/cmd/prune.rb b/Library/Homebrew/cmd/prune.rb
index 810d5279a1..6c6f51549e 100644
--- a/Library/Homebrew/cmd/prune.rb
+++ b/Library/Homebrew/cmd/prune.rb
@@ -1,3 +1,5 @@
+require 'keg'
+
 module Homebrew extend self
   # $n and $d are used by the ObserverPathnameExtension to keep track of
   # certain filesystem actions.
@@ -11,7 +13,12 @@ module Homebrew extend self
       path.find do |path|
         path.extend ObserverPathnameExtension
         if path.symlink?
-          path.unlink unless path.resolved_path_exists?
+          unless path.resolved_path_exists?
+            if ENV['HOMEBREW_KEEP_INFO'] and path.to_s =~ Keg::INFOFILE_RX
+              path.uninstall_info
+            end
+            path.unlink
+          end
         elsif path.directory?
           dirs << path
         end