Flush FCGI opcache during capistrano deployment using cachetool

cachetool.rake

namespace :cachetool do

  task :run, :command do |t, args|
    args.with_defaults(:command => :list)
    on release_roles(fetch(:cachetool_roles)) do
      within fetch(:cachetool_working_dir) do
        execute :cachetool, args[:command], *args.extras
      end
    end
  end

  desc 'Flush the FCGI opcache'
  task :flush do
    fcgi_socket = fetch(:fcgi_socket)
    invoke 'cachetool:run', 'opcache:reset', fcgi_socket ? "--fcgi=#{fcgi_socket}" : ''
  end

end

after 'deploy:published', 'cachetool:flush'
after 'deploy:reverted', 'cachetool:flush'


namespace :load do
  task :defaults do
    set :cachetool_roles, :all
    set :cachetool_working_dir, -> { fetch(:release_path) }
    set :cachetool_download_url, "http://gordalina.github.io/cachetool/downloads/cachetool.phar"
  end
end