Function check_path

src/traffic_layout/engine.cc:63–72

the function for the checking of the yaml file in the passed in path if found return the path, if not return empty string

// the function for the checking of the yaml file in the passed in path
// if found return the path, if not return empty string
std::string
check_path(const std::string &path)
{
  std::string yaml_file = Layout::relative_to(path, "runroot.yaml");
  if (!exists(yaml_file)) {
    ink_warning("Unable to access runroot: '%s' - %s", yaml_file.c_str(), strerror(errno));
    return {};
  }
  return path;
}

// the function for the checking of the yaml file in passed in directory or parent directory
// if found return the parent path containing the yaml file