class Bundler::Source::Rubygems

def installed_specs
  @installed_specs ||= begin
    idx = Index.new
    have_bundler = false
    Bundler.rubygems.all_specs.reverse.each do |spec|
      next if spec.name == 'bundler' && spec.version.to_s != VERSION
      have_bundler = true if spec.name == 'bundler'
      spec.source = self
      idx << spec
    end
    # Always have bundler locally
    unless have_bundler
     # We're running bundler directly from the source
     # so, let's create a fake gemspec for it (it's a path)
     # gemspec
     bundler = Gem::Specification.new do |s|
       s.name     = 'bundler'
       s.version  = VERSION
       s.platform = Gem::Platform::RUBY
       s.source   = self
       s.authors  = ["bundler team"]
       s.loaded_from = File.expand_path("..", __FILE__)
     end
     idx << bundler
    end
    idx
  end
end