/**
  * Build the command string from the configuration
  *
  * @return string
  */
 public function build(ConversionConfig $config)
 {
     $command = [$config->converterExecutable()];
     $command[] = '-h ' . $config->host();
     $command[] = '-u ' . $config->username();
     $command[] = '-p' . $config->password();
     $command[] = '-P ' . $config->port();
     $command[] = $config->database();
     if ($config->hasConfiguredTables()) {
         $command[] = implode(' ', $config->tables());
     }
     // append any additional mysqldump options
     foreach ($config->extraOptions() as $option => $value) {
         // determine if it's an option or a key/value pair
         if (is_numeric($option)) {
             $command[] = $value;
         } else {
             $command[] = $option . '="' . addslashes($value) . '"';
         }
     }
     $command[] = '| sqlite3 ' . $config->outputPath();
     return implode(' ', $command);
 }