/// Holds keys associated with environment values.
public enum EnvironmentKey {
  public static let xdgConfigHomeKey = "XDG_CONFIG_HOME"
  public static let hpaConfigDirKey = "HPA_CONFIG_DIR"
  public static let hpaConfigFileKey = "HPA_CONFIG_FILE"
}

/// Holds keys associated with hpa configuration files.
public enum HPAKey {
  public static let defaultConfigHome = "~/.config/\(Self.hpaConfigDirectoryName)/\(Self.defaultConfigFileName)"
  public static let defaultConfigFileName = "config.toml"
  public static let hpaConfigDirectoryName = "hpa"
}