From 5b9bc086ac86b42f7a970e4fe7c3d65ae188f9d7 Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Tue, 5 Oct 2010 13:40:09 -0700
Subject: [PATCH] Fix plugin loading in a Rails 2.3.x project [closes GH-176]

---
 CHANGELOG.md          |  2 +-
 lib/vagrant/plugin.rb | 15 +++++++++++----
 2 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 98644c1a1..53dc978a7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 ## 0.6.5 (unreleased)
 
-
+  - Fix plugin loading in a Rails 2.3.x project. [GH-176]
 
 ## 0.6.4 (October 4, 2010)
 
diff --git a/lib/vagrant/plugin.rb b/lib/vagrant/plugin.rb
index a33686748..5df4e89d0 100644
--- a/lib/vagrant/plugin.rb
+++ b/lib/vagrant/plugin.rb
@@ -21,13 +21,20 @@ module Vagrant
     # load path. This file is loaded to kick off the load sequence
     # for that plugin.
     def self.load!
+      # Stupid hack since Rails 2.3.x overrides Gem.source_index with their
+      # own incomplete replacement which causes issues.
+      index = Gem.source_index
+      index = [index.installed_source_index, index.vendor_source_index] if defined?(Rails::VendorGemSourceIndex) && index.is_a?(Rails::VendorGemSourceIndex)
+
       # Look for a vagrant_init.rb in all the gems, but only the
       # latest version of the gems.
-      Gem.source_index.latest_specs.each do |spec|
-        file = Gem.searcher.matching_files(spec, "vagrant_init.rb").first
-        next if !file
+      [index].flatten.each do |source|
+        source.latest_specs.each do |spec|
+          file = Gem.searcher.matching_files(spec, "vagrant_init.rb").first
+          next if !file
 
-        @@plugins << new(spec, file)
+          @@plugins << new(spec, file)
+        end
       end
     end