From 8b9733d7358f22409c86f8849faabab7f5c53881 Mon Sep 17 00:00:00 2001
From: Aaron Patterson <aaron.patterson@gmail.com>
Date: Tue, 22 Oct 2013 10:35:32 -0700
Subject: use the provided block to filter lists

---
 railties/lib/rails/paths.rb | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

(limited to 'railties/lib/rails')

diff --git a/railties/lib/rails/paths.rb b/railties/lib/rails/paths.rb
index 88f1dbba05..bfac24d0c3 100644
--- a/railties/lib/rails/paths.rb
+++ b/railties/lib/rails/paths.rb
@@ -98,17 +98,11 @@ module Rails
 
     protected
 
-      def filter_by
-        all = []
-        all_paths.each do |path|
-          if yield(path)
-            paths  = path.existent
-            paths -= path.children.map { |p| yield(p) ? [] : p.existent }.flatten
-            all.concat(paths)
-          end
-        end
-        all.uniq!
-        all
+      def filter_by(&block)
+        all_paths.find_all(&block).flat_map { |path|
+          paths = path.existent
+          paths - path.children.map { |p| yield(p) ? [] : p.existent }.flatten
+        }.uniq
       end
     end
 
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