60c5ffc1a9
`adb` can sometimes hang, which will in turn hang the Dart isolate if we're using `Process.runSync()`. This changes many of the `Device` methods to return `Future<T>` in order to allow them to use the async process methods. A future change will add timeouts to the associated calls so that we can properly alert the user to the hung `adb` process. This is work towards #7102, #9567
43 lines
1.3 KiB
Dart
43 lines
1.3 KiB
Dart
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:async';
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import '../base/common.dart';
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import '../base/utils.dart';
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import '../device.dart';
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import '../doctor.dart';
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import '../globals.dart';
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import '../runner/flutter_command.dart';
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class DevicesCommand extends FlutterCommand {
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@override
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final String name = 'devices';
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@override
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final String description = 'List all connected devices.';
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@override
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Future<Null> runCommand() async {
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if (!doctor.canListAnything) {
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throwToolExit(
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"Unable to locate a development device; please run 'flutter doctor' for "
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"information about installing additional components.",
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exitCode: 1);
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}
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final List<Device> devices = await deviceManager.getAllConnectedDevices().toList();
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if (devices.isEmpty) {
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printStatus(
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'No devices detected.\n\n'
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'If you expected your device to be detected, please run "flutter doctor" to diagnose\n'
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'potential issues, or visit https://flutter.io/setup/ for troubleshooting tips.');
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} else {
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printStatus('${devices.length} connected ${pluralize('device', devices.length)}:\n');
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await Device.printDevices(devices);
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}
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}
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}
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