From 2ef79d1387745945e8bb06c98f4407bccf52f859 Mon Sep 17 00:00:00 2001
From: Jack Nagel <jacknagel@gmail.com>
Date: Thu, 14 Feb 2013 17:29:59 -0600
Subject: [PATCH] GitDownloadStrategy: default to remote HEAD during checkout

---
 Library/Homebrew/download_strategy.rb | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/Library/Homebrew/download_strategy.rb b/Library/Homebrew/download_strategy.rb
index 05937b1656..cbfb002542 100644
--- a/Library/Homebrew/download_strategy.rb
+++ b/Library/Homebrew/download_strategy.rb
@@ -377,7 +377,7 @@ class GitDownloadStrategy < AbstractDownloadStrategy
   end
 
   def clone_args
-    args = %w{clone --no-checkout}
+    args = %w{clone}
     args << '--depth' << '1' if support_depth?
 
     case @spec
@@ -408,16 +408,13 @@ class GitDownloadStrategy < AbstractDownloadStrategy
 
   def clone_repo
     safe_system @@git, *clone_args
-    @clone.cd do
-      checkout
-      update_submodules if submodules?
-    end
+    @clone.cd { update_submodules } if submodules?
   end
 
   def checkout
     ref = case @spec
-          when :branch         then "origin/#@ref"
-          when :tag, :revision then @ref
+          when :branch, :tag, :revision then @ref
+          else `git symbolic-ref refs/remotes/origin/HEAD`.strip.split("/").last
           end
 
     nostdout do