protected function getAliasInfo() {
    $alias_length = NULL;
    $alias = NULL;
    $config_file = $this->getInspector()->getCliConfigFile();
    $contents = file_get_contents($config_file);
    $needle = 'function blt() {';
    $begin_alias_pos = strpos($contents, $needle);
    $end_alias_pos = $this->getClosingBracketPosition($contents, $begin_alias_pos + strlen($needle));
    $canonical_alias = file_get_contents($this->getConfigValue('blt.root') . '/scripts/blt/alias');

    if (!is_null($end_alias_pos)) {
      $alias_length = $end_alias_pos - $begin_alias_pos + 1;
      $alias = substr($contents, $begin_alias_pos, $alias_length);
    }

    return [
      'config_file' => $config_file,
      'contents' => $contents,
      'start_pos' => $begin_alias_pos,
      'end_pos' => $end_alias_pos,
      'length' => $alias_length,
      'alias' => $alias,
      'canonical_alias' => $canonical_alias,
    ];
  }