gist.rake

task :run_gist => :environment do
  url = ENV['url']
  raise "usage: rake run_gist url=https://gist.github.com/asdfasdfasdfasdf" unless url.present?

  dir = Dir.mktmpdir

  system("git clone #{url} #{dir}")
  
  Dir.chdir(dir) do
    raise "Gist does not have a script.rb file to execute" unless File.exists?('script.rb')

    $0 = 'script.rb'
    Kernel.load 'script.rb'
  end
end