mas/MasKit/Commands/Install.swift
2019-01-11 18:06:02 -07:00

65 lines
2 KiB
Swift

//
// Install.swift
// mas-cli
//
// Created by Andrew Naylor on 21/08/2015.
// Copyright (c) 2015 Andrew Naylor. All rights reserved.
//
import Commandant
import Result
import CommerceKit
/// Installs previously purchased apps from the Mac App Store.
public struct InstallCommand: CommandProtocol {
public typealias Options = InstallOptions
public let verb = "install"
public let function = "Install from the Mac App Store"
private let appLibrary: AppLibrary
/// Designated initializer.
///
/// - Parameter appLibrary: AppLibrary manager.
public init(appLibrary: AppLibrary = MasAppLibrary()) {
self.appLibrary = appLibrary
}
public func run(_ options: Options) -> Result<(), MASError> {
// Try to download applications with given identifiers and collect results
let downloadResults = options.appIds.compactMap { (appId) -> MASError? in
if let product = appLibrary.installedApp(forId: appId), !options.forceInstall {
printWarning("\(product.appName) is already installed")
return nil
}
return download(appId)
}
switch downloadResults.count {
case 0:
return .success(())
case 1:
return .failure(downloadResults[0])
default:
return .failure(.downloadFailed(error: nil))
}
}
}
public struct InstallOptions: OptionsProtocol {
let appIds: [UInt64]
let forceInstall: Bool
public static func create(_ appIds: [Int]) -> (_ forceInstall: Bool) -> InstallOptions {
return { forceInstall in
return InstallOptions(appIds: appIds.map {UInt64($0)}, forceInstall: forceInstall)
}
}
public static func evaluate(_ mode: CommandMode) -> Result<InstallOptions, CommandantError<MASError>> {
return create
<*> mode <| Argument(usage: "app ID(s) to install")
<*> mode <| Switch(flag: nil, key: "force", usage: "force reinstall")
}
}