// 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, ); } }