rvm_gem.rb

require 'rubygems/format'

define :rvm_cookbook_gem, :action => :install do
	remote_file params[:name] do
		action :create_if_missing
		backup false
	end

	ruby_block "Load gemspec and install gem" do
		block do
			gemspec = Gem::Format.from_file_by_path(params[:name]).spec

			p = Chef::Resource::GemPackage.new(gemspec.name, collection, node)
			p.source "file://#{params[:name]}"
			p.version gemspec.version.version
			p.gem_binary "rvm $(rvm alias show default) gem"
			p.run_action(params[:action])
		end
	end

	file params[:name] do
		action :delete
	end
end