bool ExpandAndCreateDir()

in rosbag_cloud_recorders/src/utils/file_utils.cpp [57:91]

• 29 lines of code
• 7 McCabe index (conditional complexity)

bool ExpandAndCreateDir(const std::string & dir, std::string & expanded_dir)
{
  wordexp_t wordexp_result{};

  int expand_result = wordexp_ros(dir.c_str(), &wordexp_result, 0);
  // Directory was successfully read and expanded
  if (0 == expand_result && 1 == wordexp_result.we_wordc) {
    expanded_dir = *(wordexp_result.we_wordv);
  } else {
    std::array<char, kMaxErrStrSize> err_msg{};
    (void) strerror_r(errno, err_msg.data(), err_msg.max_size());
    AWS_LOGSTREAM_ERROR(__func__, "Failed to expand write directory " << expanded_dir << " with error " << err_msg.data());
    wordfree(&wordexp_result);
    return false;
  }

  if (!boost::filesystem::exists(expanded_dir)) {
    AWS_LOGSTREAM_INFO(__func__, "Provided write directory " << expanded_dir << " doesn't exist, creating.");
    boost::filesystem::create_directories(expanded_dir);
    if (!boost::filesystem::exists(expanded_dir)) {
      AWS_LOGSTREAM_ERROR(__func__, "Failed to create write directory " << expanded_dir);
      wordfree(&wordexp_result);
      return false;
    }
  }

  wordfree(&wordexp_result);

  int writeable_result = access(expanded_dir.c_str(), W_OK);  // test for writeability
  if (0 != writeable_result) {
    AWS_LOGSTREAM_WARN(__func__, "Provided write directory " << expanded_dir << " is not writeable");
  }

  return boost::filesystem::is_directory(expanded_dir) && 0 == writeable_result;
}