protected function execute(InputInterface $input, OutputInterface $output)
 {
     $container = $this->getContainer();
     $filesystem = new Filesystem();
     $locator = $container->get("agit.common.filecollector");
     $bundles = $container->getParameter("kernel.bundles");
     $catalogPath = $container->getParameter("kernel.root_dir") . "/{$this->catalogSubdir}";
     $this->getContainer()->get("event_dispatcher")->dispatch("agit.intl.global.translations", new TranslationsEvent($this));
     foreach ($container->getParameter("agit.intl.locales") as $locale) {
         $catalog = new Translations();
         $messagesPath = "{$catalogPath}/{$locale}/LC_MESSAGES";
         $catalogFile = "{$messagesPath}/agit.po";
         $oldCatalog = $filesystem->exists($catalogFile) ? Translations::fromPoFile($catalogFile) : new Translations();
         foreach ($oldCatalog as $translation) {
             $translation->deleteReferences();
         }
         $catalog->mergeWith($oldCatalog, 0);
         foreach ($bundles as $alias => $namespace) {
             $bundlePath = $locator->resolve($alias);
             $bundleCatalogFile = "{$bundlePath}/{$this->catalogSubdir}/bundle.{$locale}.po";
             $bundleCatalog = $filesystem->exists($bundleCatalogFile) ? Translations::fromPoFile($bundleCatalogFile) : new Translations();
             $catalog->mergeWith($bundleCatalog, Merge::ADD);
         }
         if (isset($this->extraTranslations[$locale])) {
             foreach ($this->extraTranslations[$locale] as $translation) {
                 $catalog[] = $translation;
             }
         }
         // NOTE: we delete all headers and only set language in order to avoid garbage commits
         $catalog->deleteHeaders();
         $catalog->setLanguage($locale);
         $catalog->setHeader("Content-Type", "text/plain; charset=UTF-8");
         $filesystem->dumpFile($catalogFile, $catalog->toPoString());
         $filesystem->dumpFile("{$messagesPath}/agit.mo", $catalog->toMoString());
     }
 }