config.action_controller.asset_host = Proc.new do |source, request|
  non_ssl_host = "http://assets#{source.hash % 4}.github.com"
  ssl_host = "https://assets#{source.hash % 4}.github.com"

  if request.ssl?
    if source =~ /\.js$/
      ssl_host
    elsif request.headers["USER_AGENT"] =~ /(Safari)/
      non_ssl_host
    else
      ssl_host
    end
  else
    non_ssl_host
  end
end

repo = Grit::Repo.new(RAILS_ROOT)
js  = repo.log('master', 'public/javascripts', :max_count => 1).first
css = repo.log('master', 'public/stylesheets', :max_count => 1).first

ENV['RAILS_ASSET_ID'] = js.committed_date > css.committed_date ? js.id : css.id