| // Copyright 2016 The Vanadium 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 'dart:io'; |
| import 'dart:convert' show JSON; |
| |
| import 'package:flutter_driver/flutter_driver.dart'; |
| |
| import 'src/base/common.dart'; |
| import 'src/globals.dart'; |
| |
| class DriverUtil { |
| static Future<FlutterDriver> connectByName(String deviceNickname) async { |
| // read the temp spec file to find the device nickname -> observatory port |
| // mapping |
| Directory systemTempDir = Directory.systemTemp; |
| File tempFile = new File('${systemTempDir.path}/$defaultTempSpecsName'); |
| // if temp spec file is not found, report error and exit |
| if(!await tempFile.exists()) { |
| printError('Multi-Drive temporary specs file not found.'); |
| exit(1); |
| } |
| // decode specs |
| dynamic configs = JSON.decode(await tempFile.readAsString()); |
| // report error if nickname is not found |
| if(!configs.containsKey(deviceNickname)) { |
| printError('Device nickname $deviceNickname not found.'); |
| exit(1); |
| } |
| // read device id and observatory port |
| String deviceID = configs[deviceNickname]['device-id']; |
| String observatoryUrl = configs[deviceNickname]['observatory-url']; |
| printInfo('$deviceNickname refers to device $deviceID running on url $observatoryUrl'); |
| // delegate to flutter driver connect method |
| return await FlutterDriver.connect(dartVmServiceUrl: '$observatoryUrl'); |
| } |
| } |