Enviroments.swift

  /// Indicates whether the app is running from Xcode  or
  /// the debugger had been attached to a running app from Finder
  static var isDebuggerAttached: Bool {
    var debuggerIsAttached = false

    var name: [Int32] = [CTL_KERN, KERN_PROC, KERN_PROC_PID, getpid()]
    var info = kinfo_proc()
    var info_size = MemoryLayout<kinfo_proc>.size

    let success = name.withUnsafeMutableBytes { (nameBytePtr: UnsafeMutableRawBufferPointer)
      -> Bool in
      guard let nameBytesBlindMemory = nameBytePtr
        .bindMemory(to: Int32.self)
        .baseAddress else { return false }
      return sysctl(
        nameBytesBlindMemory,
        4,
        &info /* UnsafeMutableRawPointer! */,
        &info_size /* UnsafeMutablePointer<Int>! */,
        nil,
        0
      ) != -1
    }

    // The original HockeyApp code checks for this
    if !success {
      debuggerIsAttached = false
    }

    if !debuggerIsAttached, (info.kp_proc.p_flag & P_TRACED) != 0 {
      debuggerIsAttached = true
    }

    return debuggerIsAttached
  }