From 22365f2f6d268113ed48a168389e7339df68c956 Mon Sep 17 00:00:00 2001
From: Jack Nagel
Date: Tue, 13 Aug 2013 15:40:48 -0500
Subject: Improve checksum perf by providing an output buffer

---
 Library/Homebrew/extend/pathname.rb | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

(limited to 'Library')

diff --git a/Library/Homebrew/extend/pathname.rb b/Library/Homebrew/extend/pathname.rb
index fc2df4407..fedb30ef8 100644
--- a/Library/Homebrew/extend/pathname.rb
+++ b/Library/Homebrew/extend/pathname.rb
@@ -211,11 +211,8 @@ class Pathname
 
   def incremental_hash(hasher)
     incr_hash = hasher.new
-    self.open('r') do |f|
-      while(buf = f.read(1024))
-        incr_hash << buf
-      end
-    end
+    buf = ""
+    open('r') { |f| incr_hash << buf while f.read(1024, buf) }
     incr_hash.hexdigest
   end
 
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