1// Copyright 2016 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5import 'dart:async'; 6 7import '../cache.dart'; 8import '../globals.dart'; 9import '../runner/flutter_command.dart'; 10import '../version.dart'; 11 12class PrecacheCommand extends FlutterCommand { 13 PrecacheCommand() { 14 argParser.addFlag('all-platforms', abbr: 'a', negatable: false, 15 help: 'Precache artifacts for all host platforms.'); 16 argParser.addFlag('force', abbr: 'f', negatable: false, 17 help: 'Force downloading of artifacts.'); 18 argParser.addFlag('android', negatable: true, defaultsTo: true, 19 help: 'Precache artifacts for Android development.'); 20 argParser.addFlag('ios', negatable: true, defaultsTo: true, 21 help: 'Precache artifacts for iOS development.'); 22 argParser.addFlag('web', negatable: true, defaultsTo: false, 23 help: 'Precache artifacts for web development.'); 24 argParser.addFlag('linux', negatable: true, defaultsTo: false, 25 help: 'Precache artifacts for Linux desktop development.'); 26 argParser.addFlag('windows', negatable: true, defaultsTo: false, 27 help: 'Precache artifacts for Windows desktop development.'); 28 argParser.addFlag('macos', negatable: true, defaultsTo: false, 29 help: 'Precache artifacts for macOS desktop development.'); 30 argParser.addFlag('fuchsia', negatable: true, defaultsTo: false, 31 help: 'Precache artifacts for Fuchsia development.'); 32 argParser.addFlag('universal', negatable: true, defaultsTo: true, 33 help: 'Precache artifacts required for any development platform.'); 34 argParser.addFlag('flutter_runner', negatable: true, defaultsTo: false, 35 help: 'Precache the flutter runner artifacts.', hide: true); 36 } 37 38 @override 39 final String name = 'precache'; 40 41 @override 42 final String description = 'Populates the Flutter tool\'s cache of binary artifacts.'; 43 44 @override 45 bool get shouldUpdateCache => false; 46 47 @override 48 Future<FlutterCommandResult> runCommand() async { 49 if (argResults['all-platforms']) { 50 cache.includeAllPlatforms = true; 51 } 52 final Set<DevelopmentArtifact> requiredArtifacts = <DevelopmentArtifact>{}; 53 for (DevelopmentArtifact artifact in DevelopmentArtifact.values) { 54 // Don't include unstable artifacts on stable branches. 55 if (!FlutterVersion.instance.isMaster && artifact.unstable) { 56 continue; 57 } 58 if (argResults[artifact.name]) { 59 requiredArtifacts.add(artifact); 60 } 61 } 62 final bool forceUpdate = argResults['force']; 63 if (forceUpdate || !cache.isUpToDate()) { 64 await cache.updateAll(requiredArtifacts); 65 } else { 66 printStatus('Already up-to-date.'); 67 } 68 return null; 69 } 70} 71