From 802775078c2d91f231eb4b0f64685c01d998dee8 Mon Sep 17 00:00:00 2001
From: Jack Nagel
Date: Sat, 26 Jul 2014 20:11:53 -0500
Subject: Separate reading and parsing the diff

---
 Library/Homebrew/cmd/update.rb | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'Library/Homebrew/cmd')

diff --git a/Library/Homebrew/cmd/update.rb b/Library/Homebrew/cmd/update.rb
index 5addb4375..85cc3014b 100644
--- a/Library/Homebrew/cmd/update.rb
+++ b/Library/Homebrew/cmd/update.rb
@@ -172,7 +172,7 @@ class Updater
     map = Hash.new{ |h,k| h[k] = [] }
 
     if initial_revision && initial_revision != current_revision
-      `git diff-tree -r --name-status --diff-filter=AMD #{initial_revision} #{current_revision}`.each_line do |line|
+      diff.each_line do |line|
         status, path = line.split
         map[status.to_sym] << repository.join(path)
       end
@@ -187,6 +187,10 @@ class Updater
     `git rev-parse -q --verify HEAD`.chomp
   end
 
+  def diff
+    `git diff-tree -r --name-status --diff-filter=AMD #{initial_revision} #{current_revision}`
+  end
+
   def `(cmd)
     out = super
     if $? && !$?.success?
-- 
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