Add flutter build macos-framework command (#105242)

dev/devicelab/lib/framework/utils.dart

@@ -753,6 +753,13 @@ void checkDirectoryNotExists(String directory) {
   }
 }
 
+/// Checks that the symlink exists, otherwise throws a [FileSystemException].
+void checkSymlinkExists(String file) {
+  if (!exists(Link(file))) {
+    throw FileSystemException('Expected symlink to exist.', file);
+  }
+}
+
 /// Check that `collection` contains all entries in `values`.
 void checkCollectionContains<T>(Iterable<T> values, Iterable<T> collection) {
   for (final T value in values) {

packages/flutter_tools/lib/src/commands/build.dart

@@ -17,6 +17,7 @@ import 'build_bundle.dart';
 import 'build_fuchsia.dart';
 import 'build_ios.dart';
 import 'build_ios_framework.dart';
+import 'build_macos_framework.dart';
 import 'build_web.dart';
 
 class BuildCommand extends FlutterCommand {
@@ -29,6 +30,10 @@ class BuildCommand extends FlutterCommand {
       buildSystem: globals.buildSystem,
       verboseHelp: verboseHelp,
     ));
+    _addSubcommand(BuildMacOSFrameworkCommand(
+      buildSystem: globals.buildSystem,
+      verboseHelp: verboseHelp,
+    ));
     _addSubcommand(BuildIOSArchiveCommand(verboseHelp: verboseHelp));
     _addSubcommand(BuildBundleCommand(verboseHelp: verboseHelp));
     _addSubcommand(BuildWebCommand(verboseHelp: verboseHelp));

packages/flutter_tools/lib/src/xcode_project.dart

@@ -518,6 +518,8 @@ class MacOSProject extends XcodeBasedProject {
   @override
   File get generatedXcodePropertiesFile => ephemeralDirectory.childFile('Flutter-Generated.xcconfig');
 
+  File get pluginRegistrantImplementation => managedDirectory.childFile('GeneratedPluginRegistrant.swift');
+
   @override
   File xcodeConfigFor(String mode) => managedDirectory.childFile('Flutter-$mode.xcconfig');
 

packages/flutter_tools/test/general.shard/project_test.dart

@@ -251,7 +251,7 @@ void main() {
         final FlutterProject project = await someProject();
         project.macos.managedDirectory.createSync(recursive: true);
         await project.regeneratePlatformSpecificTooling();
-        expectExists(project.macos.managedDirectory.childFile('GeneratedPluginRegistrant.swift'));
+        expectExists(project.macos.pluginRegistrantImplementation);
       }, overrides: <Type, Generator>{
         FileSystem: () => MemoryFileSystem.test(),
         ProcessManager: () => FakeProcessManager.any(),