From b115f26870fe128294a4662f017fe28be69cf7d5 Mon Sep 17 00:00:00 2001
From: Max Howell <max@methylblue.com>
Date: Fri, 21 Aug 2009 19:50:20 +0100
Subject: [PATCH] GitDownloadStrategy

Untested
---
 Library/Homebrew/formula.rb | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index 80b2d6a282..577ea0f0a3 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -89,6 +89,26 @@ class SubversionDownloadStrategy <AbstractDownloadStrategy
   end
 end
 
+class GitDownloadStrategy <AbstractDownloadStrategy
+  def fetch
+    ohai "Cloning #{@url}"
+    @clone=HOMEBREW_CACHE+@unique_token
+    unless @clone.exist?
+      safe_system 'git', 'clone', @url, @clone
+    else
+      # TODO git pull?
+      puts "Repository already cloned"
+    end
+  end
+  def stage
+    dst=Dir.getwd
+    Dir.chdir @clone do
+      # http://stackoverflow.com/questions/160608/how-to-do-a-git-export-like-svn-export
+      safe_system 'git', 'checkout-index', '-af', "--prefix=#{dst}"
+    end
+  end
+end
+
 
 class ExecutionError <RuntimeError
   def initialize cmd, args=[]