Twiggle bit to exclude dev and beta from desktop and web (#35221)

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

@@ -103,7 +103,7 @@ class BuildBundleCommand extends BuildSubCommand {
       case TargetPlatform.darwin_x64:
       case TargetPlatform.windows_x64:
       case TargetPlatform.linux_x64:
-        if (FlutterVersion.instance.isStable) {
+        if (!FlutterVersion.instance.isMaster) {
           throwToolExit('$targetPlatform is not supported on stable Flutter.');
         }
         break;

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

@@ -613,7 +613,7 @@ To edit platform code in an IDE see https://flutter.dev/developing-packages/#edi
       'iosLanguage': iosLanguage,
       'flutterRevision': FlutterVersion.instance.frameworkRevision,
       'flutterChannel': FlutterVersion.instance.channel,
-      'web': web && !FlutterVersion.instance.isStable,
+      'web': web && FlutterVersion.instance.isMaster
     };
   }
 

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

@@ -50,7 +50,7 @@ class PrecacheCommand extends FlutterCommand {
     final Set<DevelopmentArtifact> requiredArtifacts = <DevelopmentArtifact>{};
     for (DevelopmentArtifact artifact in DevelopmentArtifact.values) {
       // Don't include unstable artifacts on stable branches.
-      if (FlutterVersion.instance.isStable && artifact.unstable) {
+      if (!FlutterVersion.instance.isMaster && artifact.unstable) {
         continue;
       }
       if (argResults[artifact.name]) {

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

@@ -352,7 +352,7 @@ class RunCommand extends RunCommandBase {
       );
     }
 
-    if (argResults['dart-flags'] != null && FlutterVersion.instance.isStable) {
+    if (argResults['dart-flags'] != null && !FlutterVersion.instance.isMaster) {
       throw UsageException('--dart-flags is not available on the stable '
                            'channel.', null);
     }
@@ -411,7 +411,7 @@ class RunCommand extends RunCommandBase {
     }
     // Only support "web mode" on non-stable branches with a single web device
     // in a "hot mode".
-    final bool webMode = !FlutterVersion.instance.isStable
+    final bool webMode = FlutterVersion.instance.isMaster
       && devices.length == 1
       && await devices.single.targetPlatform == TargetPlatform.web_javascript;
 

packages/flutter_tools/lib/src/desktop.dart

@@ -26,9 +26,9 @@ bool get flutterDesktopEnabled {
   if (isRunningFromDaemon) {
     final bool platformEnabled = platform
         .environment['ENABLE_FLUTTER_DESKTOP']?.toLowerCase() == 'true';
-    return platformEnabled && !FlutterVersion.instance.isStable;
+    return platformEnabled && FlutterVersion.instance.isMaster;
   }
-  return !FlutterVersion.instance.isStable;
+  return FlutterVersion.instance.isMaster;
 }
 
 /// Kills a process on linux or macOS.

packages/flutter_tools/lib/src/runner/flutter_command.dart

@@ -555,7 +555,7 @@ abstract class FlutterCommand extends Command<void> {
   Future<void> validateCommand() async {
     // If we're on a stable branch, then don't allow the usage of
     // "experimental" features.
-    if (isExperimental && FlutterVersion.instance.isStable) {
+    if (isExperimental && !FlutterVersion.instance.isMaster) {
       throwToolExit('Experimental feature $name is not supported on stable branches');
     }
 
@@ -651,17 +651,17 @@ DevelopmentArtifact _artifactFromTargetPlatform(TargetPlatform targetPlatform) {
     case TargetPlatform.ios:
       return DevelopmentArtifact.iOS;
     case TargetPlatform.darwin_x64:
-      if (!FlutterVersion.instance.isStable) {
+      if (FlutterVersion.instance.isMaster) {
         return DevelopmentArtifact.macOS;
       }
       return null;
     case TargetPlatform.windows_x64:
-      if (!FlutterVersion.instance.isStable) {
+      if (!FlutterVersion.instance.isMaster) {
         return DevelopmentArtifact.windows;
       }
       return null;
     case TargetPlatform.linux_x64:
-      if (!FlutterVersion.instance.isStable) {
+      if (!FlutterVersion.instance.isMaster) {
         return DevelopmentArtifact.linux;
       }
       return null;

packages/flutter_tools/lib/src/version.dart

@@ -32,9 +32,10 @@ class FlutterVersion {
     return _repositoryUrl;
   }
 
-  /// Whether we are currently on the stable branch.
-  bool get isStable {
-    return getBranchName() == 'stable';
+  /// Whether we are currently on the master branch.
+  bool get isMaster {
+    final String branchName = getBranchName();
+    return !<String>['dev', 'beta', 'stable'].contains(branchName);
   }
 
   static const Set<String> officialChannels = <String>{

packages/flutter_tools/lib/src/web/workflow.dart

@@ -24,9 +24,9 @@ bool get flutterWebEnabled {
   if (isRunningFromDaemon) {
     final bool platformEnabled = platform
         .environment['FLUTTER_WEB']?.toLowerCase() == 'true';
-    return platformEnabled && !FlutterVersion.instance.isStable;
+    return platformEnabled && FlutterVersion.instance.isMaster;
   }
-  return !FlutterVersion.instance.isStable;
+  return FlutterVersion.instance.isMaster;
 }
 
 /// The  web workflow instance.

packages/flutter_tools/test/commands/build_web_test.dart

@@ -93,5 +93,5 @@ class MockPlatform extends Mock implements Platform {
 }
 class MockFlutterVersion extends Mock implements FlutterVersion {
   @override
-  bool get isStable => false;
+  bool get isMaster => true;
 }

packages/flutter_tools/test/commands/precache_test.dart

@@ -44,7 +44,7 @@ void main() {
     });
 
     final MockFlutterVersion flutterVersion = MockFlutterVersion();
-    when(flutterVersion.isStable).thenReturn(true);
+    when(flutterVersion.isMaster).thenReturn(false);
 
     testUsingContext('Adds artifact flags to requested artifacts on stable', () async {
       // Release lock between test cases.

packages/flutter_tools/test/commands/run_test.dart

@@ -201,7 +201,7 @@ class TestRunCommand extends RunCommand {
 
 class MockStableFlutterVersion extends MockFlutterVersion {
   @override
-  bool get isStable => true;
+  bool get isMaster => false;
 }
 
 class FakeDevice extends Fake implements Device {

packages/flutter_tools/test/runner/flutter_command_test.dart

@@ -274,8 +274,8 @@ void main() {
     final MockVersion stableVersion = MockVersion();
     final MockVersion betaVersion = MockVersion();
     final FakeCommand fakeCommand = FakeCommand();
-    when(stableVersion.isStable).thenReturn(true);
-    when(betaVersion.isStable).thenReturn(false);
+    when(stableVersion.isMaster).thenReturn(false);
+    when(betaVersion.isMaster).thenReturn(true);
 
     testUsingContext('Can be disabled on stable branch', () async {
       expect(() => fakeCommand.run(), throwsA(isA<ToolExit>()));

packages/flutter_tools/test/src/context.dart

@@ -348,7 +348,7 @@ class MockFlutterVersion extends Mock implements FlutterVersion {
   final bool _isStable;
 
   @override
-  bool get isStable => _isStable;
+  bool get isMaster => !_isStable;
 }
 
 class MockClock extends Mock implements SystemClock {}

packages/flutter_tools/test/web/workflow_test.dart

@@ -96,8 +96,10 @@ void main() {
 class MockFlutterVersion extends Mock implements FlutterVersion {
   MockFlutterVersion(this.isStable);
 
-  @override
   final bool isStable;
+
+  @override
+  bool get isMaster => !isStable;
 }
 
 class MockProcessManager extends Mock implements ProcessManager {}