Cleanup rolled-back-release archives created by capistrano

rolled_back_releases.rake

namespace :deploy do
  desc "List rolled-back-release archives"
  task :rolled_back_releases do
    on release_roles(:all) do
      within deploy_path do
        archives = capture(:ls, "-xt").split.select do |path|
          path.start_with?("rolled-back-release-")
        end

        if archives.any?
          archives_str = archives.join(" ")
          info "rolled back releases: #{archives_str}"
        end
      end
    end
  end

  namespace :rolled_back_releases do
    desc "Remove rolled-back-release archives"
    task :cleanup do
      on release_roles(:all) do
        within deploy_path do
          archives = capture(:ls, "-xt").split.select do |path|
            path.start_with?("rolled-back-release-")
          end

          if archives.any?
            archives_str = archives.join(" ")
            execute :rm, archives_str                                                                    
          end
        end
      end
    end
  end
end