flutter/packages/flutter_tools/lib/src/commands/install.dart

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Dart

// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'dart:async';
import '../application_package.dart';
import '../cache.dart';
import '../device.dart';
import '../globals.dart';
import '../runner/flutter_command.dart';
class InstallCommand extends FlutterCommand {
@override
final String name = 'install';
@override
final String description = 'Install a Flutter app on an attached device.';
@override
bool get requiresDevice => true;
@override
Future<int> runInProject() async {
Device device = deviceForCommand;
ApplicationPackage package = applicationPackages.getPackageForPlatform(device.platform);
Cache.releaseLockEarly();
printStatus('Installing $package to $device...');
return installApp(device, package) ? 0 : 2;
}
}
bool installApp(Device device, ApplicationPackage package, { bool uninstall: true }) {
if (package == null)
return false;
if (uninstall && device.isAppInstalled(package)) {
printStatus('Uninstalling old version...');
if (!device.uninstallApp(package))
printError('Warning: uninstalling old version failed');
}
return device.installApp(package);
}