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UTMScriptingCreateCommand.swift
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//
// Copyright © 2023 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
@MainActor
@objc(UTMScriptingCreateCommand)
class UTMScriptingCreateCommand: NSCreateCommand, UTMScriptable {
private var bytesInMib: Int {
1048576
}
private var bytesInGib: Int {
1073741824
}
private var data: UTMData? {
(NSApp.scriptingDelegate as? AppDelegate)?.data
}
@objc override func performDefaultImplementation() -> Any? {
if createClassDescription.implementationClassName == "UTMScriptingVirtualMachineImpl" {
withScriptCommand(self) { [self] in
guard let backend = resolvedKeyDictionary["backend"] as? AEKeyword, let backend = UTMScriptingBackend(rawValue: backend) else {
throw ScriptingError.backendNotFound
}
guard let configuration = resolvedKeyDictionary["configuration"] as? [AnyHashable : Any] else {
throw ScriptingError.configurationNotFound
}
if backend == .qemu {
return try await createQemuVirtualMachine(from: configuration).objectSpecifier
} else if backend == .apple {
return try await createAppleVirtualMachine(from: configuration).objectSpecifier
} else {
throw ScriptingError.backendNotFound
}
}
return nil
} else {
return super.performDefaultImplementation()
}
}
private func createQemuVirtualMachine(from record: [AnyHashable : Any]) async throws -> UTMScriptingVirtualMachineImpl {
guard let data = data else {
throw ScriptingError.notReady
}
guard record["name"] as? String != nil else {
throw ScriptingError.nameNotSpecified
}
guard let architecture = record["architecture"] as? String, let architecture = QEMUArchitecture(rawValue: architecture) else {
throw ScriptingError.architectureNotSpecified
}
let machine = record["machine"] as? String
let target = architecture.targetType.init(rawValue: machine ?? "") ?? architecture.targetType.default
let config = UTMQemuConfiguration()
config.system.architecture = architecture
config.system.target = target
config.reset(forArchitecture: architecture, target: target)
config.qemu.hasHypervisor = true
config.qemu.hasUefiBoot = true
// add default drives
config.drives.append(UTMQemuConfigurationDrive(forArchitecture: architecture, target: target, isExternal: true))
var fixed = UTMQemuConfigurationDrive(forArchitecture: architecture, target: target)
fixed.sizeMib = 64 * bytesInGib / bytesInMib
config.drives.append(fixed)
// add a default serial device
var serial = UTMQemuConfigurationSerial()
serial.mode = .ptty
config.serials = [serial]
// remove GUI devices
config.displays = []
config.sound = []
// parse the remaining config
let wrapper = UTMScriptingConfigImpl(config)
try wrapper.updateConfiguration(from: record)
// create the vm
let vm = try await data.create(config: config)
return UTMScriptingVirtualMachineImpl(for: vm, data: data)
}
private func createAppleVirtualMachine(from record: [AnyHashable : Any]) async throws -> UTMScriptingVirtualMachineImpl {
guard let data = data else {
throw ScriptingError.notReady
}
guard #available(macOS 13, *) else {
throw ScriptingError.backendNotSupported
}
guard record["name"] as? String != nil else {
throw ScriptingError.nameNotSpecified
}
let config = UTMAppleConfiguration()
config.system.boot = try UTMAppleConfigurationBoot(for: .linux)
config.virtualization.hasBalloon = true
config.virtualization.hasEntropy = true
config.networks = [UTMAppleConfigurationNetwork()]
// remove any display devices
config.displays = []
// add a default serial device
var serial = UTMAppleConfigurationSerial()
serial.mode = .ptty
config.serials = [serial]
// add default drives
config.drives.append(UTMAppleConfigurationDrive(existingURL: nil, isExternal: true))
config.drives.append(UTMAppleConfigurationDrive(newSize: 64 * bytesInGib / bytesInMib))
// parse the remaining config
let wrapper = UTMScriptingConfigImpl(config)
try wrapper.updateConfiguration(from: record)
// create the vm
let vm = try await data.create(config: config)
return UTMScriptingVirtualMachineImpl(for: vm, data: data)
}
enum ScriptingError: Error, LocalizedError {
case notReady
case backendNotFound
case backendNotSupported
case configurationNotFound
case nameNotSpecified
case architectureNotSpecified
var errorDescription: String? {
switch self {
case .notReady: return NSLocalizedString("UTM is not ready to accept commands.", comment: "UTMScriptingAppDelegate")
case .backendNotFound: return NSLocalizedString("A valid backend must be specified.", comment: "UTMScriptingAppDelegate")
case .backendNotSupported: return NSLocalizedString("This backend is not supported on your machine.", comment: "UTMScriptingAppDelegate")
case .configurationNotFound: return NSLocalizedString("A valid configuration must be specified.", comment: "UTMScriptingAppDelegate")
case .nameNotSpecified: return NSLocalizedString("No name specified in the configuration.", comment: "UTMScriptingAppDelegate")
case .architectureNotSpecified: return NSLocalizedString("No architecture specified in the configuration.", comment: "UTMScriptingAppDelegate")
}
}
}
}