Refactoring to use `ver` command instead of `systeminfo` (#119304)

* refactoring to use `ver` command instead of `systeminfo`

* fix tests to match new approach

* adding another valid validator using brazil locale text

* refactor tests to use generic fake class `ver` arg + showing output from `ver` if unsuccessful

* update reason text in test

* fix reason text to be hard coded

packages/flutter_tools/lib/src/doctor.dart

@@ -132,7 +132,7 @@ class _DefaultDoctorValidatorsProvider implements DoctorValidatorsProvider {
       ),
       if (platform.isWindows)
         WindowsVersionValidator(
-          processManager: globals.processManager,
+          operatingSystemUtils: globals.os,
         ),
       if (androidWorkflow!.appliesToHostPlatform)
         GroupedValidator(<DoctorValidator>[androidValidator!, androidLicenseValidator!]),

packages/flutter_tools/lib/src/windows/windows_version_validator.dart

@@ -2,9 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import 'package:process/process.dart';
-
-import '../base/io.dart';
+import '../base/os.dart';
 import '../doctor_validator.dart';
 
 /// Flutter only supports development on Windows host machines version 10 and greater.
@@ -16,49 +14,36 @@ const List<String> kUnsupportedVersions = <String>[
 
 /// Regex pattern for identifying line from systeminfo stdout with windows version
 /// (ie. 10.5.4123)
-const String kWindowsOSVersionSemVerPattern =
-    r'^(OS )([^:]*:\s*)([0-9]+\.[0-9]+\.[0-9]+)(.*)$';
+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 ProcessManager processManager})
-      : _processManager = processManager,
+  const WindowsVersionValidator({
+    required OperatingSystemUtils operatingSystemUtils,
+  })  : _operatingSystemUtils = operatingSystemUtils,
         super('Windows Version');
 
-  final ProcessManager _processManager;
+  final OperatingSystemUtils _operatingSystemUtils;
 
   @override
   Future<ValidationResult> validate() async {
-    final ProcessResult result =
-        await _processManager.run(<String>['systeminfo']);
-
-    if (result.exitCode != 0) {
-      return const ValidationResult(
-        ValidationType.missing,
-        <ValidationMessage>[],
-        statusInfo: 'Exit status from running `systeminfo` was unsuccessful',
-      );
-    }
-
-    final String resultStdout = result.stdout as String;
-
     final RegExp regex =
         RegExp(kWindowsOSVersionSemVerPattern, multiLine: true);
-    final Iterable<RegExpMatch> matches = regex.allMatches(resultStdout);
+    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(3)?.split('.').elementAt(0))) {
+        !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 confirm if installed Windows version is 10 or greater';
+          'Unable to determine Windows version (command `ver` returned $commandResult)';
     }
 
     return ValidationResult(