dmitriy-kiriyenko/soprano

Capistrano::Configuration.instance(:must_exist).load do
  namespace :soprano do
    namespace :nginx do
      desc <<-DESC
      Enable virtual host.
      DESC
      task :enable_vhost, :roles => :web do
        sudo "ln -fs #{current_path}/config/nginx.conf /etc/nginx/sites-enabled/#{application}"
        sudo "/etc/init.d/nginx reload"
      end

      desc <<-DESC
      Disable virtual host.
      DESC
      task :disable_vhost, :roles => :web do
        sudo "rm /etc/nginx/sites-enabled/#{application}"
        sudo "/etc/init.d/nginx reload"
      end

      desc <<-DESC
      Reload nginx configuration if the application nginx virtual host config file was changed.
      DESC
      task :reload_if_config_file_changed, :roles => :web do
        run "bash -c \"if ! cmp #{previous_release}/config/nginx.conf #{current_path}/config/nginx.conf; then #{sudo} /etc/init.d/nginx reload; fi\""
      end
    end
  end

  on :load do
    if fetch(:link_vhost_from_app, true)
      before "deploy:start",   "soprano:nginx:enable_vhost"
      after  "deploy:stop",    "soprano:nginx:disable_vhost"
      after  "deploy:restart", "soprano:nginx:reload_if_config_file_changed"
    end
  end
end