Dart 3.9 / Flutter 3.35 [first LLM release] (#2714)

I got carried away with Gemini and basically rewrote CI and the release
process for the new LLM reality. This work was largely completed by
Gemini.

- Bump all SDK versions to the current beta (3.9.0-0)
- Run `flutter channel beta`
- Wrote `ci_script.dart` to replace the bash scripts
- Converted repository to pub workspace #2499 
- Added llm.md and release.md
- Added redirect for deprecated Samples Index

## Pre-launch Checklist

- [x] I read the [Flutter Style Guide] _recently_, and have followed its
advice.
- [x] I signed the [CLA].
- [x] I read the [Contributors Guide].
- [x] I have added sample code updates to the [changelog].
- [x] I updated/added relevant documentation (doc comments with `///`).

game_template/lib/main.dart

@@ -129,19 +129,16 @@ class MyApp extends StatelessWidget {
     routes: [
       GoRoute(
         path: '/',
-        builder:
-            (context, state) => const MainMenuScreen(key: Key('main menu')),
+        builder: (context, state) =>
+            const MainMenuScreen(key: Key('main menu')),
         routes: [
           GoRoute(
             path: 'play',
-            pageBuilder:
-                (context, state) => buildMyTransition<void>(
-                  key: ValueKey('play'),
-                  child: const LevelSelectionScreen(
-                    key: Key('level selection'),
-                  ),
-                  color: context.watch<Palette>().backgroundLevelSelection,
-                ),
+            pageBuilder: (context, state) => buildMyTransition<void>(
+              key: ValueKey('play'),
+              child: const LevelSelectionScreen(key: Key('level selection')),
+              color: context.watch<Palette>().backgroundLevelSelection,
+            ),
             routes: [
               GoRoute(
                 path: 'session/:level',
@@ -190,8 +187,8 @@ class MyApp extends StatelessWidget {
           ),
           GoRoute(
             path: 'settings',
-            builder:
-                (context, state) => const SettingsScreen(key: Key('settings')),
+            builder: (context, state) =>
+                const SettingsScreen(key: Key('settings')),
           ),
         ],
       ),
@@ -238,10 +235,9 @@ class MyApp extends StatelessWidget {
           ),
           Provider<SettingsController>(
             lazy: false,
-            create:
-                (context) =>
-                    SettingsController(persistence: settingsPersistence)
-                      ..loadStateFromPersistence(),
+            create: (context) =>
+                SettingsController(persistence: settingsPersistence)
+                  ..loadStateFromPersistence(),
           ),
           ProxyProvider2<
             SettingsController,

game_template/lib/src/ads/ads_controller.dart

@@ -36,11 +36,10 @@ class AdsController {
   void preloadAd() {
     // TODO: When ready, change this to the Ad Unit IDs provided by AdMob.
     //       The current values are AdMob's sample IDs.
-    final adUnitId =
-        defaultTargetPlatform == TargetPlatform.android
-            ? 'ca-app-pub-3940256099942544/6300978111'
-            // iOS
-            : 'ca-app-pub-3940256099942544/2934735716';
+    final adUnitId = defaultTargetPlatform == TargetPlatform.android
+        ? 'ca-app-pub-3940256099942544/6300978111'
+        // iOS
+        : 'ca-app-pub-3940256099942544/2934735716';
     _preloadedAd = PreloadedBannerAd(
       size: AdSize.mediumRectangle,
       adUnitId: adUnitId,

game_template/lib/src/ads/banner_ad_widget.dart

@@ -150,10 +150,9 @@ class _BannerAdWidgetState extends State<BannerAdWidget> {
       // https://developers.google.com/admob/android/test-ads. When ready,
       // you replace this with your own, production ad unit ID,
       // created in https://apps.admob.com/.
-      adUnitId:
-          Theme.of(context).platform == TargetPlatform.android
-              ? 'ca-app-pub-3940256099942544/6300978111'
-              : 'ca-app-pub-3940256099942544/2934735716',
+      adUnitId: Theme.of(context).platform == TargetPlatform.android
+          ? 'ca-app-pub-3940256099942544/6300978111'
+          : 'ca-app-pub-3940256099942544/2934735716',
       size: size,
       request: const AdRequest(),
       listener: BannerAdListener(

game_template/lib/src/play_session/play_session_screen.dart

@@ -48,9 +48,8 @@ class _PlaySessionScreenState extends State<PlaySessionScreen> {
     return MultiProvider(
       providers: [
         ChangeNotifierProvider(
-          create:
-              (context) =>
-                  LevelState(goal: widget.level.difficulty, onWin: _playerWon),
+          create: (context) =>
+              LevelState(goal: widget.level.difficulty, onWin: _playerWon),
         ),
       ],
       child: IgnorePointer(
@@ -80,17 +79,14 @@ class _PlaySessionScreenState extends State<PlaySessionScreen> {
                       ' or above!',
                     ),
                     Consumer<LevelState>(
-                      builder:
-                          (context, levelState, child) => Slider(
-                            label: 'Level Progress',
-                            autofocus: true,
-                            value: levelState.progress / 100,
-                            onChanged:
-                                (value) => levelState.setProgress(
-                                  (value * 100).round(),
-                                ),
-                            onChangeEnd: (value) => levelState.evaluate(),
-                          ),
+                      builder: (context, levelState, child) => Slider(
+                        label: 'Level Progress',
+                        autofocus: true,
+                        value: levelState.progress / 100,
+                        onChanged: (value) =>
+                            levelState.setProgress((value * 100).round()),
+                        onChangeEnd: (value) => levelState.evaluate(),
+                      ),
                     ),
                     const Spacer(),
                     Padding(

game_template/lib/src/settings/custom_name_dialog.dart

@@ -10,9 +10,8 @@ import 'settings.dart';
 void showCustomNameDialog(BuildContext context) {
   showGeneralDialog(
     context: context,
-    pageBuilder:
-        (context, animation, secondaryAnimation) =>
-            CustomNameDialog(animation: animation),
+    pageBuilder: (context, animation, secondaryAnimation) =>
+        CustomNameDialog(animation: animation),
   );
 }
 

game_template/lib/src/settings/settings_screen.dart

@@ -42,21 +42,19 @@ class SettingsScreen extends StatelessWidget {
             const _NameChangeLine('Name'),
             ValueListenableBuilder<bool>(
               valueListenable: settings.soundsOn,
-              builder:
-                  (context, soundsOn, child) => _SettingsLine(
-                    'Sound FX',
-                    Icon(soundsOn ? Icons.graphic_eq : Icons.volume_off),
-                    onSelected: () => settings.toggleSoundsOn(),
-                  ),
+              builder: (context, soundsOn, child) => _SettingsLine(
+                'Sound FX',
+                Icon(soundsOn ? Icons.graphic_eq : Icons.volume_off),
+                onSelected: () => settings.toggleSoundsOn(),
+              ),
             ),
             ValueListenableBuilder<bool>(
               valueListenable: settings.musicOn,
-              builder:
-                  (context, musicOn, child) => _SettingsLine(
-                    'Music',
-                    Icon(musicOn ? Icons.music_note : Icons.music_off),
-                    onSelected: () => settings.toggleMusicOn(),
-                  ),
+              builder: (context, musicOn, child) => _SettingsLine(
+                'Music',
+                Icon(musicOn ? Icons.music_note : Icons.music_off),
+                onSelected: () => settings.toggleMusicOn(),
+              ),
             ),
             Consumer<InAppPurchaseController?>(
               builder: (context, inAppPurchase, child) {
@@ -137,14 +135,13 @@ class _NameChangeLine extends StatelessWidget {
             const Spacer(),
             ValueListenableBuilder(
               valueListenable: settings.playerName,
-              builder:
-                  (context, name, child) => Text(
-                    '‘$name’',
-                    style: const TextStyle(
-                      fontFamily: 'Permanent Marker',
-                      fontSize: 30,
-                    ),
-                  ),
+              builder: (context, name, child) => Text(
+                '‘$name’',
+                style: const TextStyle(
+                  fontFamily: 'Permanent Marker',
+                  fontSize: 30,
+                ),
+              ),
             ),
           ],
         ),

game_template/lib/src/style/confetti.dart

@@ -188,17 +188,17 @@ class _PaperSnipping {
       paint.color = backColor;
     }
 
-    final path =
-        Path()..addPolygon(
-          List.generate(
-            4,
-            (index) => Offset(
-              position.x + corners[index].x * size,
-              position.y + corners[index].y * size * cosA,
-            ),
+    final path = Path()
+      ..addPolygon(
+        List.generate(
+          4,
+          (index) => Offset(
+            position.x + corners[index].x * size,
+            position.y + corners[index].y * size * cosA,
           ),
-          true,
-        );
+        ),
+        true,
+      );
     canvas.drawPath(path, paint);
   }