Add support for Visual Studio 2022 (#93426)

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

@@ -20,11 +20,6 @@ import '../migrations/cmake_custom_command_migration.dart';
 import 'install_manifest.dart';
 import 'visual_studio.dart';
 
-// From https://cmake.org/cmake/help/v3.14/manual/cmake-generators.7.html#visual-studio-generators
-// This may need to become a getter on VisualStudio in the future to support
-// future major versions of Visual Studio.
-const String _cmakeVisualStudioGeneratorIdentifier = 'Visual Studio 16 2019';
-
 /// Update the string when non-backwards compatible changes are made to the UWP template.
 const int kCurrentUwpTemplateVersion = 0;
 
@@ -61,7 +56,8 @@ Future<void> buildWindows(WindowsProject windowsProject, BuildInfo buildInfo, {
     processManager: globals.processManager,
   );
   final String? cmakePath = visualStudio.cmakePath;
-  if (cmakePath == null) {
+  final String? cmakeGenerator = visualStudio.cmakeGenerator;
+  if (cmakePath == null || cmakeGenerator == null) {
     throwToolExit('Unable to find suitable Visual Studio toolchain. '
         'Please run `flutter doctor` for more details.');
   }
@@ -72,7 +68,12 @@ Future<void> buildWindows(WindowsProject windowsProject, BuildInfo buildInfo, {
     'Building Windows application...',
   );
   try {
-    await _runCmakeGeneration(cmakePath, buildDirectory, windowsProject.cmakeFile.parent);
+    await _runCmakeGeneration(
+      cmakePath: cmakePath,
+      generator: cmakeGenerator,
+      buildDir: buildDirectory,
+      sourceDir: windowsProject.cmakeFile.parent,
+    );
     await _runBuild(cmakePath, buildDirectory, buildModeName);
   } finally {
     status.cancel();
@@ -152,7 +153,8 @@ Future<void> buildWindowsUwp(WindowsUwpProject windowsProject, BuildInfo buildIn
     processManager: globals.processManager,
   );
   final String? cmakePath = visualStudio.cmakePath;
-  if (cmakePath == null) {
+  final String? cmakeGenerator = visualStudio.cmakeGenerator;
+  if (cmakePath == null || cmakeGenerator == null) {
     throwToolExit('Unable to find suitable Visual Studio toolchain. '
         'Please run `flutter doctor` for more details.');
   }
@@ -165,7 +167,12 @@ Future<void> buildWindowsUwp(WindowsUwpProject windowsProject, BuildInfo buildIn
     // The Cmake re-entrant build does not work for UWP, so the flutter build is
     // run in advance.
     await _runFlutterBuild(buildDirectory, buildInfo, target);
-    await _runCmakeGeneration(cmakePath, buildDirectory, windowsProject.cmakeFile.parent);
+    await _runCmakeGeneration(
+      cmakePath: cmakePath,
+      generator: cmakeGenerator,
+      buildDir: buildDirectory,
+      sourceDir: windowsProject.cmakeFile.parent,
+    );
     await _runBuild(cmakePath, buildDirectory, buildModeName, install: false);
   } finally {
     status.cancel();
@@ -232,7 +239,12 @@ Future<void> _runFlutterBuild(Directory buildDirectory, BuildInfo buildInfo, Str
   }
 }
 
-Future<void> _runCmakeGeneration(String cmakePath, Directory buildDir, Directory sourceDir) async {
+Future<void> _runCmakeGeneration({
+  required String cmakePath,
+  required String generator,
+  required Directory buildDir,
+  required Directory sourceDir,
+}) async {
   final Stopwatch sw = Stopwatch()..start();
 
   await buildDir.create(recursive: true);
@@ -246,7 +258,7 @@ Future<void> _runCmakeGeneration(String cmakePath, Directory buildDir, Directory
         '-B',
         buildDir.path,
         '-G',
-        _cmakeVisualStudioGeneratorIdentifier,
+        generator,
       ],
       trace: true,
     );

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

@@ -167,6 +167,19 @@ class VisualStudio {
     ]);
   }
 
+  /// The generator string to pass to CMake to select this Visual Studio
+  /// version.
+  String? get cmakeGenerator {
+    // From https://cmake.org/cmake/help/v3.22/manual/cmake-generators.7.html#visual-studio-generators
+    switch (_majorVersion) {
+      case 17:
+        return 'Visual Studio 17 2022';
+      case 16:
+      default:
+        return 'Visual Studio 16 2019';
+    }
+  }
+
   /// The major version of the Visual Studio install, as an integer.
   int? get _majorVersion => fullVersion != null ? int.tryParse(fullVersion!.split('.')[0]) : null;
 

packages/flutter_tools/test/general.shard/windows/visual_studio_test.dart

@@ -39,6 +39,20 @@ const Map<String, dynamic> _defaultResponse = <String, dynamic>{
   },
 };
 
+// A minimum version of a response where a VS 2022 installation was found.
+const Map<String, dynamic> _vs2022Response = <String, dynamic>{
+  'installationPath': visualStudioPath,
+  'displayName': 'Visual Studio Community 2022',
+  'installationVersion': '17.0.31903.59',
+  'isRebootRequired': false,
+  'isComplete': true,
+  'isLaunchable': true,
+  'isPrerelease': false,
+  'catalog': <String, dynamic>{
+    'productDisplayVersion': '17.0.0',
+  },
+};
+
 // A minimum version of a response where a Build Tools installation was found.
 const Map<String, dynamic> _defaultBuildToolsResponse = <String, dynamic>{
   'installationPath': visualStudioPath,
@@ -732,6 +746,7 @@ void main() {
       expect(visualStudio.isAtLeastMinimumVersion, true);
       expect(visualStudio.hasNecessaryComponents, true);
       expect(visualStudio.cmakePath, equals(cmakePath));
+      expect(visualStudio.cmakeGenerator, equals('Visual Studio 16 2019'));
     });
 
     testWithoutContext('Everything returns good values when Build Tools is present with all components', () {
@@ -755,6 +770,23 @@ void main() {
       expect(visualStudio.cmakePath, equals(cmakePath));
     });
 
+    testWithoutContext('properties return the right value for Visual Studio 2022', () {
+      final VisualStudioFixture fixture = setUpVisualStudio();
+      final VisualStudio visualStudio = fixture.visualStudio;
+
+      setMockCompatibleVisualStudioInstallation(
+        _vs2022Response,
+        fixture.fileSystem,
+        fixture.processManager,
+      );
+
+      expect(visualStudio.isInstalled, true);
+      expect(visualStudio.isAtLeastMinimumVersion, true);
+      expect(visualStudio.hasNecessaryComponents, true);
+      expect(visualStudio.cmakePath, equals(cmakePath));
+      expect(visualStudio.cmakeGenerator, equals('Visual Studio 17 2022'));
+    });
+
     testWithoutContext('Metadata is for compatible version when latest is missing components', () {
       final VisualStudioFixture fixture = setUpVisualStudio();
       final VisualStudio visualStudio = fixture.visualStudio;