Get human readable name for Mac model on Ventura - swift

Question

I have used the following code for get the model identifier of a Mac computer:
public static var modelIdentifier: String {
var size = 0
sysctlbyname("hw.model", nil, &size, nil, 0)
var machine = [CChar](repeating: 0, count: Int(size))
sysctlbyname("hw.model", &machine, &size, nil, 0)
return String(cString: machine)
}
This model identifier is used in this variable to get a human readable name of the device:
public static var marketingModel: String {
guard let currentIdentifier = NSLocale.current.languageCode else { return String.hyphen }
let modelIdentifier = self.modelIdentifier
var path = "/System/Library/PrivateFrameworks/ServerInformation.framework/Versions/A/Resources/"
path += currentIdentifier + ".lproj"
path += "/SIMachineAttributes.plist"
if let fileData = FileManager.default.contents(atPath: path) {
if let plistContents = try? PropertyListSerialization.propertyList(from: fileData, format: nil)
as? [String: Any]
{
if let contents = plistContents[modelIdentifier] as? [String: Any],
let localizable = contents["_LOCALIZABLE_"] as? [String: String]
{
let marketingModel = localizable["marketingModel"] ?? String.hyphen
return marketingModel
}
}
}
return String.hyphen
}
This returned strings like MacBook Pro (16-inch, 2019). However, on the latest MacOS Ventura build, no string is returned for Mac Mac Studio (Mac13,1).
Is there another way to get this string? Do I have to look in a different plist?

Answer 1

I have used the IORegistryExplorer and found a key that contains this information.
By running the following code in a playground, you can extract the name:
import Cocoa
import IOKit
let mainEntry = IORegistryEntryFromPath(kIOMainPortDefault, "IOService:/AppleARMPE/product")
let property = IORegistryEntryCreateCFProperty(mainEntry, "product-description" as CFString, kCFAllocatorDefault, 0)
if let bytes = property?.takeRetainedValue() as? Data
{
let array = [UInt8](bytes)
let terminatedModelString = String(cString: array)
Swift.print(terminatedModelString)
}
IOObjectRelease(mainEntry)
The key suggests that this will only work for Apple Silicon based machines. For Intel based machines, you can still use the code from my initial question.