feat(shorebird_cli): shorebird run support --flavor and --target (#416)

packages/shorebird_cli/lib/src/commands/run_command.dart

@@ -19,11 +19,21 @@ class RunCommand extends ShorebirdCommand
     super.buildCodePushClient,
     super.validators,
   }) {
-    argParser.addOption(
-      'device-id',
-      abbr: 'd',
-      help: 'Target device id or name.',
-    );
+    argParser
+      ..addOption(
+        'device-id',
+        abbr: 'd',
+        help: 'Target device id or name.',
+      )
+      ..addOption(
+        'target',
+        abbr: 't',
+        help: 'The main entrypoint file of the application.',
+      )
+      ..addOption(
+        'flavor',
+        help: 'The product flavor to use when building the app.',
+      );
   }
 
   @override
@@ -44,13 +54,17 @@ class RunCommand extends ShorebirdCommand
     logger.info('Running app...');
 
     final deviceId = results['device-id'] as String?;
+    final flavor = results['flavor'] as String?;
+    final target = results['target'] as String?;
     final flutter = await process.start(
       'flutter',
       [
         'run',
         // Eventually we should support running in both debug and release mode.
         '--release',
-        if (deviceId != null) ...['-d', deviceId],
+        if (deviceId != null) '--device-id=$deviceId',
+        if (flavor != null) '--flavor=$flavor',
+        if (target != null) '--target=$target',
         ...results.rest
       ],
       runInShell: true,

packages/shorebird_cli/test/src/commands/run_command_test.dart

@@ -157,14 +157,18 @@ void main() {
       verify(() => logger.info(output)).called(1);
     });
 
-    test('passes device-id when specified', () async {
+    test('passes additional args when specified', () async {
       final tempDir = Directory.systemTemp.createTempSync();
 
       final progress = _MockProgress();
       when(() => logger.progress(any())).thenReturn(progress);
 
       const deviceId = 'test-device-id';
+      const flavor = 'development';
+      const target = './lib/main_development.dart';
       when(() => argResults['device-id']).thenReturn(deviceId);
+      when(() => argResults['flavor']).thenReturn(flavor);
+      when(() => argResults['target']).thenReturn(target);
 
       when(() => process.stdout).thenAnswer((_) => const Stream.empty());
       when(() => process.stderr).thenAnswer((_) => const Stream.empty());
@@ -186,7 +190,13 @@ void main() {
       ).captured.first as List<String>;
       expect(
         args,
-        equals(['run', '--release', '-d', deviceId]),
+        equals([
+          'run',
+          '--release',
+          '--device-id=$deviceId',
+          '--flavor=$flavor',
+          '--target=$target',
+        ]),
       );
 
       await expectLater(result, equals(ExitCode.success.code));