How can I listen to console events in symfony? -

i'm trying hook symfonys console events symfony standard edition (2.3), won't work.

i created listener according example , follow guides on event registration:

namespace acme\demobundle\eventlistener;  use symfony\component\console\event\consolecommandevent; use symfony\component\console\consoleevents;  class acmecommandlistener {     public function onconsolecommand(consolecommandevent $event) {         // output instance         $output = $event->getoutput();          // command executed         $command = $event->getcommand();          // write command         $output->writeln(sprintf('before running command <info>%s</info>', $command->getname()));     } } 

and on mailing list told me register event in service container. did this:

services:     kernel.listener.command_dispatch:         class: acme\demobundle\eventlistener\acmecommandlistener         tags:             - { name: kernel.event_listener, event: console.command } 

but tagging not correct , can't find correct names that. how that?

so, got it. above code in original post ist working, defined services.yml within bundle not in application config app/config.yml. means, configuration never loaded. had import configuration via container extensions:

# acme/demobundle/dependencyinjection/acmedemoextension.php namespace acme\demobundle\dependencyinjection;  use symfony\component\dependencyinjection\containerbuilder; use symfony\component\config\filelocator; use symfony\component\httpkernel\dependencyinjection\extension; use symfony\component\dependencyinjection\loader;  class acmedemoextension extends extension {     public function load(array $configs, containerbuilder $container)     {         $configuration = new configuration();         $config = $this->processconfiguration($configuration, $configs);          $loader = new loader\yamlfileloader($container, new filelocator(__dir__.'/../resources/config'));         $loader->load('services.yml');     } } 

and

# acme/demobundle/dependencyinjection/configuration.php namespace acme\demobundle\dependencyinjection;  use symfony\component\config\definition\builder\treebuilder; use symfony\component\config\definition\configurationinterface;  class configuration implements configurationinterface {     public function getconfigtreebuilder()     {         $treebuilder = new treebuilder();         $rootnode = $treebuilder->root('headwork_legacy');         return $treebuilder;     } } 

though guess can leave out $configuration = new configuration(); part , configuration class.