From deb68c29a7124ca67fbe0988f27e8dfc50bef328 Mon Sep 17 00:00:00 2001
From: Thomas Reynolds <me@tdreyno.com>
Date: Mon, 29 Aug 2011 11:53:11 -0700
Subject: [PATCH] try to make extension loading generic

---
 lib/middleman.rb | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/lib/middleman.rb b/lib/middleman.rb
index 4b00b5ea..2997afd8 100755
--- a/lib/middleman.rb
+++ b/lib/middleman.rb
@@ -159,13 +159,8 @@ module Middleman
   
   EXTENSION_FILE = "middleman_init.rb"
   def self.load_extensions_in_path
-    # If newer Rubygems
-    extensions = if Gem::Specification.respond_to? :latest_specs
-      ::Gem::Specification.latest_specs.select do |spec| 
-        spec.contains_requirable_file?(EXTENSION_FILE)
-      end
-    else
-      ::Gem::GemPathSearcher.new.find_all(EXTENSION_FILE)
+    extensions = rubygems_latest_specs.select do |spec|
+      spec_has_file?(spec, EXTENSION_FILE)
     end
     
     extensions.each do |spec|
@@ -174,6 +169,20 @@ module Middleman
     end
   end
   
+  def self.rubygems_latest_specs
+    # If newer Rubygems
+    if Gem::Specification.respond_to? :latest_specs
+      Gem::Specification.latest_specs
+    else
+      Gem.source_index.latest_specs
+    end
+  end
+  
+  def self.spec_has_file?(spec, path)
+    full_path = File.join(spec.full_gem_path, path)
+    File.exists?(full_path)
+  end
+  
   def self.server(&block)
     sandbox = Class.new(Sinatra::Base)
     sandbox.register Base