gistfile1.rb

r = gem_package "chef-deploy" do
  source "http://gems.engineyard.com"
  action :nothing
end

r.run_action(:install)

Gem.clear_paths
require "chef-deploy"

node[:gems].each do |gem|
  gem_package gem[:name] do
    if gem[:version] && !gem[:version].empty?
      version gem[:version]
    end
    if gem[:source]
      source gem[:source]
    end
    action :install
  end
end