mas/mas-cli/Commands/Install.swift
2016-09-25 22:13:23 +01:00

58 lines
1.8 KiB
Swift

//
// Install.swift
// mas-cli
//
// Created by Andrew Naylor on 21/08/2015.
// Copyright (c) 2015 Andrew Naylor. All rights reserved.
//
struct InstallCommand: CommandProtocol {
typealias Options = InstallOptions
let verb = "install"
let function = "Install from the Mac App Store"
func run(_ options: Options) -> Result<(), MASError> {
// Try to download applications with given identifiers and collect results
let downloadResults = options.appIds.flatMap { (appId) -> MASError? in
if let product = installedApp(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))
}
}
fileprivate func installedApp(_ appId: UInt64) -> CKSoftwareProduct? {
let appId = NSNumber(value: appId)
let softwareMap = CKSoftwareMap.shared()
return softwareMap.allProducts()?.filter { $0.itemIdentifier == appId }.first
}
}
struct InstallOptions: OptionsProtocol {
let appIds: [UInt64]
let forceInstall: Bool
static func create(_ appIds: [Int]) -> (_ forceInstall: Bool) -> InstallOptions {
return { forceInstall in
return InstallOptions(appIds: appIds.map{UInt64($0)}, forceInstall: forceInstall)
}
}
static func evaluate(_ m: CommandMode) -> Result<InstallOptions, CommandantError<MASError>> {
return create
<*> m <| Argument(usage: "app ID(s) to install")
<*> m <| Switch(flag: nil, key: "force", usage: "force reinstall")
}
}