From 2296c23d921e7b9393b6a65aa2121ac1842112cb Mon Sep 17 00:00:00 2001
From: Ryan Tomayko <rtomayko@gmail.com>
Date: Thu, 9 Dec 2010 01:03:16 -0800
Subject: [PATCH] locate git_binary on PATH at boot

Avoids starting a /bin/sh and /usr/bin/env process on each
native command invocation, and will allow exec'ing the
command directly.
---
 lib/grit/git.rb | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/lib/grit/git.rb b/lib/grit/git.rb
index d5f4627..2e9ee49 100644
--- a/lib/grit/git.rb
+++ b/lib/grit/git.rb
@@ -37,11 +37,9 @@ module Grit
       attr_accessor :git_binary, :git_timeout, :git_max_size
     end
 
-    if RUBY_PLATFORM.downcase =~ /mswin(?!ce)|mingw|bccwin/
-      self.git_binary   = "git" # using search path
-    else
-      self.git_binary   = "/usr/bin/env git"
-    end
+    self.git_binary   = ENV['PATH'].split(':').
+      map  { |p| File.join(p, 'git') }.
+      find { |p| File.exist?(p) }
     self.git_timeout  = 10
     self.git_max_size = 5242880 # 5.megabytes