gistfile1.rb

namespace :myapp do
  desc 'Captures a heroku bundle and downloads it.  The downloaded files are stored in backups/'
  task :backup do
    app_name =  RAILS_ROOT.split('/').last
    timestamp = `date -u '+%Y-%m-%d-%H-%M'`.chomp
    bundle_name = "#{app_name}-#{timestamp}"
    puts "Capturing bundle #{bundle_name}..."
    `heroku bundles:capture --app #{app_name} '#{bundle_name}'`
    # poll for completion (warning, a little hacky)
    begin
      bundles = `heroku bundles --app #{app_name}`
    end while bundles.match(/complete/).nil?
    # download & destroy the bundle we just captured
    %w(download destroy).each do | action |
      `heroku bundles:#{action} --app #{app_name} '#{bundle_name}'`
    end

    `mv #{app_name}.tar.gz backups/#{bundle_name}.tar.gz`
    puts "Bundle captured and stored in backups/#{bundle_name}.tar.gz"
  end
end