From ccc9b2dc6dc27026673db3c8871c691be9541342 Mon Sep 17 00:00:00 2001
From: Naoto Kaneko <naoty.k@gmail.com>
Date: Fri, 24 Feb 2017 17:44:27 +0900
Subject: [PATCH] Check for metafiles only in the root directory

---
 Library/Homebrew/keg.rb           | 5 ++---
 Library/Homebrew/test/keg_test.rb | 4 ++++
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/Library/Homebrew/keg.rb b/Library/Homebrew/keg.rb
index 9849a291ee..9ebfc3bc32 100644
--- a/Library/Homebrew/keg.rb
+++ b/Library/Homebrew/keg.rb
@@ -207,9 +207,8 @@ class Keg
   alias eql? ==
 
   def empty_installation?
-    Pathname.glob("#{path}/**/*") do |file|
-      return false if file.executable?
-      next if file.directory?
+    Pathname.glob("#{path}/*") do |file|
+      return false if file.directory? && !file.children.reject(&:ds_store?).empty?
       basename = file.basename.to_s
       next if Metafiles.copy?(basename)
       next if %w[.DS_Store INSTALL_RECEIPT.json].include?(basename)
diff --git a/Library/Homebrew/test/keg_test.rb b/Library/Homebrew/test/keg_test.rb
index bd42320383..e8f99b7772 100644
--- a/Library/Homebrew/test/keg_test.rb
+++ b/Library/Homebrew/test/keg_test.rb
@@ -59,6 +59,10 @@ class LinkTests < LinkTestCase
 
     (@keg/"bin").rmtree
     assert_predicate @keg, :empty_installation?
+
+    (@keg/"bin").mkpath
+    touch @keg.join("bin", "todo")
+    refute_predicate @keg, :empty_installation?
   end
 
   def test_linking_keg