UTM/Platform/UTMDownloadSupportToolsTask...

90 lines
3.5 KiB
Swift

//
// Copyright © 2022 osy. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
import Foundation
/// Downloads support tools ISO
class UTMDownloadSupportToolsTask: UTMDownloadTask {
private let vm: any UTMSpiceVirtualMachine
private static let supportToolsDownloadUrl = URL(string: "https://getutm.app/downloads/utm-guest-tools-latest.iso")!
private var toolsUrl: URL {
fileManager.urls(for: .applicationSupportDirectory, in: .userDomainMask).first!.appendingPathComponent("GuestSupportTools")
}
private var supportToolsLocalUrl: URL {
toolsUrl.appendingPathComponent(Self.supportToolsDownloadUrl.lastPathComponent)
}
@Setting("LastDownloadedGuestTools")
private var lastDownloadGuestTools: Int = 0
var hasExistingSupportTools: Bool {
get async {
guard fileManager.fileExists(atPath: supportToolsLocalUrl.path) else {
return false
}
return await lastModifiedTimestamp <= lastDownloadGuestTools
}
}
init(for vm: any UTMSpiceVirtualMachine) {
self.vm = vm
let name = NSLocalizedString("Windows Guest Support Tools", comment: "UTMDownloadSupportToolsTask")
super.init(for: Self.supportToolsDownloadUrl, named: name)
}
override func processCompletedDownload(at location: URL, response: URLResponse?) async throws -> any UTMVirtualMachine {
if !fileManager.fileExists(atPath: toolsUrl.path) {
try fileManager.createDirectory(at: toolsUrl, withIntermediateDirectories: true)
}
if fileManager.fileExists(atPath: supportToolsLocalUrl.path) {
try fileManager.removeItem(at: supportToolsLocalUrl)
}
try fileManager.moveItem(at: location, to: supportToolsLocalUrl)
lastDownloadGuestTools = lastModifiedTimestamp(for: response) ?? 0
return try await mountTools()
}
func mountTools() async throws -> any UTMVirtualMachine {
for file in await vm.registryEntry.externalDrives.values {
if file.path == supportToolsLocalUrl.path {
throw UTMDownloadSupportToolsTaskError.alreadyMounted
}
}
guard let drive = await vm.config.drives.last(where: { $0.isExternal && $0.imageURL == nil }) else {
throw UTMDownloadSupportToolsTaskError.driveUnavailable
}
try await vm.changeMedium(drive, to: supportToolsLocalUrl)
return vm
}
}
enum UTMDownloadSupportToolsTaskError: Error {
case driveUnavailable
case alreadyMounted
}
extension UTMDownloadSupportToolsTaskError: LocalizedError {
var errorDescription: String? {
switch self {
case .driveUnavailable: return NSLocalizedString("No empty removable drive found. Make sure you have at least one removable drive that is not in use.", comment: "UTMDownloadSupportToolsTaskError")
case .alreadyMounted: return NSLocalizedString("The guest support tools have already been mounted.", comment: "UTMDownloadSupportToolsTaskError")
}
}
}