[flutter_tools] add --uninstall-first flag and pipe it through to ios-deploy (#102948)

dev/devicelab/lib/tasks/hot_mode_tests.dart

@@ -33,7 +33,15 @@ TaskFunction createHotModeTest({String? deviceIdOverride, Map<String, String>? e
     final File benchmarkFile = file(path.join(_editedFlutterGalleryDir.path, 'hot_benchmark.json'));
     rm(benchmarkFile);
     final List<String> options = <String>[
-      '--hot', '-d', deviceIdOverride!, '--benchmark', '--resident',  '--no-android-gradle-daemon', '--no-publish-port', '--verbose',
+      '--hot',
+      '-d',
+      deviceIdOverride!,
+      '--benchmark',
+      '--resident',
+      '--no-android-gradle-daemon',
+      '--no-publish-port',
+      '--verbose',
+      '--uninstall-first',
     ];
     int hotReloadCount = 0;
     late Map<String, dynamic> smallReloadData;

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

@@ -140,6 +140,11 @@ abstract class RunCommandBase extends FlutterCommand with DeviceBasedDevelopment
               'this option multiple times each with one argument to pass '
               'multiple arguments to the Dart entrypoint. Currently this is '
               'only supported on desktop platforms.',
+      )
+      ..addFlag('uninstall-first',
+        hide: !verboseHelp,
+        help: 'Uninstall previous versions of the app on the device '
+              'before reinstalling. Currently only supported on iOS.',
     );
     usesWebOptions(verboseHelp: verboseHelp);
     usesTargetOption();
@@ -166,6 +171,7 @@ abstract class RunCommandBase extends FlutterCommand with DeviceBasedDevelopment
   bool get runningWithPrebuiltApplication => argResults[FlutterOptions.kUseApplicationBinary] != null;
   bool get trackWidgetCreation => boolArg('track-widget-creation');
   bool get enableImpeller => boolArg('enable-impeller');
+  bool get uninstallFirst => boolArg('uninstall-first');
 
   @override
   bool get reportNullSafety => true;
@@ -196,6 +202,7 @@ abstract class RunCommandBase extends FlutterCommand with DeviceBasedDevelopment
         webRunHeadless: featureFlags.isWebEnabled && boolArg('web-run-headless'),
         webBrowserDebugPort: browserDebugPort,
         enableImpeller: enableImpeller,
+        uninstallFirst: uninstallFirst,
       );
     } else {
       return DebuggingOptions.enabled(
@@ -240,6 +247,7 @@ abstract class RunCommandBase extends FlutterCommand with DeviceBasedDevelopment
         nullAssertions: boolArg('null-assertions'),
         nativeNullAssertions: boolArg('native-null-assertions'),
         enableImpeller: enableImpeller,
+        uninstallFirst: uninstallFirst,
       );
     }
   }

packages/flutter_tools/lib/src/device.dart

@@ -792,6 +792,7 @@ class DebuggingOptions {
     this.nullAssertions = false,
     this.nativeNullAssertions = false,
     this.enableImpeller = false,
+    this.uninstallFirst = false,
    }) : debuggingEnabled = true;
 
   DebuggingOptions.disabled(this.buildInfo, {
@@ -808,6 +809,7 @@ class DebuggingOptions {
       this.cacheSkSL = false,
       this.traceAllowlist,
       this.enableImpeller = false,
+      this.uninstallFirst = false,
     }) : debuggingEnabled = false,
       useTestFonts = false,
       startPaused = false,
@@ -876,6 +878,7 @@ class DebuggingOptions {
     required this.nullAssertions,
     required this.nativeNullAssertions,
     required this.enableImpeller,
+    required this.uninstallFirst,
   });
 
   final bool debuggingEnabled;
@@ -912,6 +915,11 @@ class DebuggingOptions {
   final bool webUseSseForInjectedClient;
   final bool enableImpeller;
 
+  /// Whether the tool should try to uninstall a previously installed version of the app.
+  ///
+  /// This is not implemented for every platform.
+  final bool uninstallFirst;
+
   /// Whether to run the browser in headless mode.
   ///
   /// Some CI environments do not provide a display and fail to launch the
@@ -1026,6 +1034,7 @@ class DebuggingOptions {
       nullAssertions: (json['nullAssertions'] as bool?)!,
       nativeNullAssertions: (json['nativeNullAssertions'] as bool?)!,
       enableImpeller: (json['enableImpeller'] as bool?) ?? false,
+      uninstallFirst: (json['uninstallFirst'] as bool?) ?? false,
     );
 }
 

packages/flutter_tools/lib/src/ios/devices.dart

@@ -394,6 +394,7 @@ class IOSDevice extends Device {
             appDeltaDirectory: package.appDeltaDirectory,
             launchArguments: launchArguments,
             interfaceType: interfaceType,
+            uninstallFirst: debuggingOptions.uninstallFirst,
           );
           if (deviceLogReader is IOSDeviceLogReader) {
             deviceLogReader.debuggerStream = iosDeployDebugger;
@@ -415,6 +416,7 @@ class IOSDevice extends Device {
           appDeltaDirectory: package.appDeltaDirectory,
           launchArguments: launchArguments,
           interfaceType: interfaceType,
+          uninstallFirst: debuggingOptions.uninstallFirst,
         );
       } else {
         installationResult = await iosDeployDebugger!.launchAndAttach() ? 0 : 1;

packages/flutter_tools/lib/src/ios/ios_deploy.dart

@@ -127,6 +127,7 @@ class IOSDeploy {
     required List<String> launchArguments,
     required IOSDeviceConnectionInterface interfaceType,
     Directory? appDeltaDirectory,
+    required bool uninstallFirst,
   }) {
     appDeltaDirectory?.createSync(recursive: true);
     // Interactive debug session to support sending the lldb detach command.
@@ -144,6 +145,8 @@ class IOSDeploy {
         '--app_deltas',
         appDeltaDirectory.path,
       ],
+      if (uninstallFirst)
+        '--uninstall',
       '--debug',
       if (interfaceType != IOSDeviceConnectionInterface.network)
         '--no-wifi',
@@ -168,6 +171,7 @@ class IOSDeploy {
     required String bundlePath,
     required List<String> launchArguments,
     required IOSDeviceConnectionInterface interfaceType,
+    required bool uninstallFirst,
     Directory? appDeltaDirectory,
   }) async {
     appDeltaDirectory?.createSync(recursive: true);
@@ -183,6 +187,8 @@ class IOSDeploy {
       ],
       if (interfaceType != IOSDeviceConnectionInterface.network)
         '--no-wifi',
+      if (uninstallFirst)
+        '--uninstall',
       '--justlaunch',
       if (launchArguments.isNotEmpty) ...<String>[
         '--args',

packages/flutter_tools/test/commands.shard/hermetic/run_test.dart

@@ -369,6 +369,42 @@ void main() {
         Cache: () => Cache.test(processManager: FakeProcessManager.any()),
       });
 
+      testUsingContext('forwards --uninstall-only to DebuggingOptions', () async {
+        final RunCommand command = RunCommand();
+        final FakeDevice mockDevice = FakeDevice(
+          sdkNameAndVersion: 'iOS 13',
+        )..startAppSuccess = false;
+
+        mockDeviceManager
+          ..devices = <Device>[
+            mockDevice,
+          ]
+          ..targetDevices = <Device>[
+            mockDevice,
+          ];
+
+        // Causes swift to be detected in the analytics.
+        fs.currentDirectory.childDirectory('ios').childFile('AppDelegate.swift').createSync(recursive: true);
+
+        await expectToolExitLater(createTestCommandRunner(command).run(<String>[
+          'run',
+          '--no-pub',
+          '--no-hot',
+          '--uninstall-first',
+        ]), isNull);
+
+        final DebuggingOptions options = await command.createDebuggingOptions(false);
+        expect(options.uninstallFirst, isTrue);
+      }, overrides: <Type, Generator>{
+        Artifacts: () => artifacts,
+        Cache: () => Cache.test(processManager: FakeProcessManager.any()),
+        DeviceManager: () => mockDeviceManager,
+        FileSystem: () => fs,
+        ProcessManager: () => FakeProcessManager.any(),
+        Usage: () => usage,
+      });
+
+
       testUsingContext('passes device target platform to usage', () async {
         final RunCommand command = RunCommand();
         final FakeDevice mockDevice = FakeDevice(sdkNameAndVersion: 'iOS 13')

packages/flutter_tools/test/general.shard/ios/ios_deploy_test.dart

@@ -53,6 +53,7 @@ void main () {
             '/',
             '--app_deltas',
             'app-delta',
+            '--uninstall',
             '--debug',
             '--args',
             <String>[
@@ -73,6 +74,7 @@ void main () {
         appDeltaDirectory: appDeltaDirectory,
         launchArguments: <String>['--enable-dart-profiling'],
         interfaceType: IOSDeviceConnectionInterface.network,
+        uninstallFirst: true,
       );
 
       expect(iosDeployDebugger.logLines, emits('Did finish launching.'));