| // Copyright 2014 The Flutter 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 '../base/os.dart'; |
| import '../doctor_validator.dart'; |
| |
| /// Flutter only supports development on Windows host machines version 10 and greater. |
| const List<String> kUnsupportedVersions = <String>[ |
| '6', |
| '7', |
| '8', |
| ]; |
| |
| /// Regex pattern for identifying line from systeminfo stdout with windows version |
| /// (ie. 10.5.4123) |
| const String kWindowsOSVersionSemVerPattern = r'([0-9]+)\.([0-9]+)\.([0-9\.]+)'; |
| |
| /// Validator for supported Windows host machine operating system version. |
| class WindowsVersionValidator extends DoctorValidator { |
| const WindowsVersionValidator({ |
| required OperatingSystemUtils operatingSystemUtils, |
| }) : _operatingSystemUtils = operatingSystemUtils, |
| super('Windows Version'); |
| |
| final OperatingSystemUtils _operatingSystemUtils; |
| |
| @override |
| Future<ValidationResult> validate() async { |
| final RegExp regex = |
| RegExp(kWindowsOSVersionSemVerPattern, multiLine: true); |
| final String commandResult = _operatingSystemUtils.name; |
| final Iterable<RegExpMatch> matches = regex.allMatches(commandResult); |
| |
| // Use the string split method to extract the major version |
| // and check against the [kUnsupportedVersions] list |
| final ValidationType windowsVersionStatus; |
| final String statusInfo; |
| if (matches.length == 1 && |
| !kUnsupportedVersions.contains(matches.elementAt(0).group(1))) { |
| windowsVersionStatus = ValidationType.success; |
| statusInfo = 'Installed version of Windows is version 10 or higher'; |
| } else { |
| windowsVersionStatus = ValidationType.missing; |
| statusInfo = |
| 'Unable to determine Windows version (command `ver` returned $commandResult)'; |
| } |
| |
| return ValidationResult( |
| windowsVersionStatus, |
| const <ValidationMessage>[], |
| statusInfo: statusInfo, |
| ); |
| } |
| } |