func getConfigParam()

in SourceKitStressTester/Package.swift [16:41]

• 21 lines of code
• 4 McCabe index (conditional complexity)

func getConfigParam(_ name: String) -> String? {
  if let envValue = ProcessInfo.processInfo.environment[name] {
    return envValue
  }

  let configFile = URL(fileURLWithPath: #filePath)
    .deletingLastPathComponent()
    .appendingPathComponent("Package-config.json")

  let configData: Data
  do {
    configData = try Data(contentsOf: configFile)
  } catch {
    // Config file not found. That's fine. Return `nil` without complaining.
    return nil
  }
  do {
    let config = try JSONDecoder().decode([String: String].self, from: configData)
    return config[name]
  } catch {
    // We couldn't parse the Package-config.json, probably malformatted JSON.
    // Print the error, which shows up as a warning in Xcode.
    print("Loading Package-config.json failed with error: \(error)")
    return nil
  }
}