Method doExecute

/**
 * Internal function to execute the command.
 *
 * @param   InputInterface   $input   The input to inject into the command.
 * @param   OutputInterface  $output  The output to inject into the command.
 *
 * @return  integer  The command exit code
 *
 * @since   4.0.0
 */
protected function doExecute(InputInterface $input, OutputInterface $output) : int
{
    $this->configureIO($input, $output);
    $extensions = $this->getExtensions();
    $type = $this->cliInput->getOption('type');
    if ($type) {
        $extensions = $this->filterExtensionsBasedOn($type);
    }
    if (empty($extensions)) {
        $this->ioStyle->error("Cannot find extensions of the type '{$type}' specified.");
        return Command::SUCCESS;
    }
    $extensions = $this->getExtensionsNameAndId($extensions);
    $this->ioStyle->title('Installed extensions.');
    $this->ioStyle->table(['Name', 'Extension ID', 'Version', 'Type', 'Active'], $extensions);
    return Command::SUCCESS;
}