[flutter_tools] General info project validator (#103653)

packages/flutter_tools/lib/src/flutter_manifest.dart

@@ -69,6 +69,8 @@ class FlutterManifest {
   /// A map representation of the `flutter` section in the `pubspec.yaml` file.
   Map<String, Object?> _flutterDescriptor = <String, Object?>{};
 
+  Map<String, Object?> get flutterDescriptor => _flutterDescriptor;
+
   /// True if the `pubspec.yaml` file does not exist.
   bool get isEmpty => _descriptor.isEmpty;
 

packages/flutter_tools/lib/src/project_validator.dart

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'flutter_manifest.dart';
 import 'project.dart';
 import 'project_validator_result.dart';
 
@@ -11,7 +12,100 @@ abstract class ProjectValidator {
   /// Can return more than one result in case a file/command have a lot of info to share to the user
   Future<List<ProjectValidatorResult>> start(FlutterProject project);
   /// new ProjectValidators should be added here for the ValidateProjectCommand to run
-  static const List <ProjectValidator> allProjectValidators = <ProjectValidator>[
-    // TODO(jasguerrero): add validators
+  static List <ProjectValidator> allProjectValidators = <ProjectValidator>[
+    GeneralInfoProjectValidator(),
   ];
 }
+
+/// Validator run for all platforms that extract information from the pubspec.yaml.
+///
+/// Specific info from different platforms should be written in their own ProjectValidator.
+class GeneralInfoProjectValidator extends ProjectValidator{
+  @override
+  Future<List<ProjectValidatorResult>> start(FlutterProject project) async {
+    final FlutterManifest flutterManifest = project.manifest;
+    final List<ProjectValidatorResult> result = <ProjectValidatorResult>[];
+    final ProjectValidatorResult appNameValidatorResult = _getAppNameResult(flutterManifest);
+    result.add(appNameValidatorResult);
+    final String supportedPlatforms = _getSupportedPlatforms(project);
+    if (supportedPlatforms.isEmpty) {
+      return result;
+    }
+    final ProjectValidatorResult supportedPlatformsResult = ProjectValidatorResult(
+        name: 'Supported Platforms',
+        value: supportedPlatforms,
+        status: StatusProjectValidator.success
+    );
+    final ProjectValidatorResult isFlutterPackage = _isFlutterPackageValidatorResult(flutterManifest);
+    result.addAll(<ProjectValidatorResult>[supportedPlatformsResult, isFlutterPackage]);
+    if (flutterManifest.flutterDescriptor.isNotEmpty) {
+      result.add(_materialDesignResult(flutterManifest));
+      result.add(_pluginValidatorResult(flutterManifest));
+    }
+    return result;
+  }
+
+  ProjectValidatorResult _getAppNameResult(FlutterManifest flutterManifest) {
+    final String appName = flutterManifest.appName;
+    const String name = 'App Name';
+    if (appName.isEmpty) {
+      return const ProjectValidatorResult(
+          name: name,
+          value: 'name not found',
+          status: StatusProjectValidator.error
+      );
+    }
+    return ProjectValidatorResult(
+        name: name,
+        value: appName,
+        status: StatusProjectValidator.success
+    );
+  }
+
+  ProjectValidatorResult _isFlutterPackageValidatorResult(FlutterManifest flutterManifest) {
+    final String value;
+    final StatusProjectValidator status;
+    if (flutterManifest.flutterDescriptor.isNotEmpty) {
+      value = 'yes';
+      status = StatusProjectValidator.success;
+    } else {
+      value = 'no';
+      status = StatusProjectValidator.warning;
+    }
+
+    return ProjectValidatorResult(
+        name: 'Is Flutter Package',
+        value: value,
+        status: status
+    );
+  }
+
+  ProjectValidatorResult _materialDesignResult(FlutterManifest flutterManifest) {
+    return ProjectValidatorResult(
+      name: 'Uses Material Design',
+      value: flutterManifest.usesMaterialDesign? 'yes' : 'no',
+      status: StatusProjectValidator.success
+    );
+  }
+
+  String _getSupportedPlatforms(FlutterProject project) {
+    return project.getSupportedPlatforms().map((SupportedPlatform platform) => platform.name).join(', ');
+  }
+
+  ProjectValidatorResult _pluginValidatorResult(FlutterManifest flutterManifest) {
+    return ProjectValidatorResult(
+      name: 'Is Plugin',
+      value: flutterManifest.isPlugin? 'yes' : 'no',
+      status: StatusProjectValidator.success
+    );
+  }
+
+  @override
+  bool supportsProject(FlutterProject project) {
+    // this validator will run for any type of project
+    return true;
+  }
+
+  @override
+  String get title => 'General Info';
+}

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

@@ -18,7 +18,7 @@ import '../../src/test_flutter_command_runner.dart';
 
 class ProjectValidatorDummy extends ProjectValidator {
   @override
-  Future<List<ProjectValidatorResult>> start(FlutterProject project) async{
+  Future<List<ProjectValidatorResult>> start(FlutterProject project, {Logger logger, FileSystem fileSystem}) async{
     return <ProjectValidatorResult>[
       const ProjectValidatorResult(name: 'pass', value: 'value', status: StatusProjectValidator.success),
       const ProjectValidatorResult(name: 'fail', value: 'my error', status: StatusProjectValidator.error),
@@ -37,7 +37,7 @@ class ProjectValidatorDummy extends ProjectValidator {
 
 class ProjectValidatorSecondDummy extends ProjectValidator {
   @override
-  Future<List<ProjectValidatorResult>> start(FlutterProject project) async{
+  Future<List<ProjectValidatorResult>> start(FlutterProject project, {Logger logger, FileSystem fileSystem}) async{
     return <ProjectValidatorResult>[
       const ProjectValidatorResult(name: 'second', value: 'pass', status: StatusProjectValidator.success),
       const ProjectValidatorResult(name: 'other fail', value: 'second fail', status: StatusProjectValidator.error),
@@ -55,7 +55,7 @@ class ProjectValidatorSecondDummy extends ProjectValidator {
 
 class ProjectValidatorCrash extends ProjectValidator {
   @override
-  Future<List<ProjectValidatorResult>> start(FlutterProject project) async{
+  Future<List<ProjectValidatorResult>> start(FlutterProject project, {Logger logger, FileSystem fileSystem}) async{
     throw Exception('my exception');
   }
 

packages/flutter_tools/test/integration.shard/project_validator_integration_test.dart

@@ -0,0 +1,50 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// @dart = 2.8
+
+import 'package:args/command_runner.dart';
+import 'package:flutter_tools/src/base/file_system.dart';
+import 'package:flutter_tools/src/base/logger.dart';
+import 'package:flutter_tools/src/commands/validate_project.dart';
+import 'package:flutter_tools/src/globals.dart' as globals;
+import 'package:flutter_tools/src/project_validator.dart';
+
+import '../src/context.dart';
+import '../src/test_flutter_command_runner.dart';
+
+void main() {
+  FileSystem fileSystem;
+
+  group('analyze project command', () {
+
+    setUp(() {
+      fileSystem = globals.localFileSystem;
+    });
+
+    testUsingContext('General Info Project Validator', () async {
+      final BufferLogger loggerTest = BufferLogger.test();
+      final ValidateProjectCommand command = ValidateProjectCommand(
+          fileSystem: fileSystem,
+          logger: loggerTest,
+          allProjectValidators: <ProjectValidator>[GeneralInfoProjectValidator()]
+      );
+      final CommandRunner<void> runner = createTestCommandRunner(command);
+
+      await runner.run(<String>['validate-project', '../../dev/integration_tests/flutter_gallery']);
+
+      const String expected = '\n'
+      '┌────────────────────────────────────────────────────────────────────────────┐\n'
+      '│ General Info                                                               │\n'
+      '│ [✓] App Name: flutter_gallery                                              │\n'
+      '│ [✓] Supported Platforms: android, ios, web, macos, linux, windows, fuchsia │\n'
+      '│ [✓] Is Flutter Package: yes                                                │\n'
+      '│ [✓] Uses Material Design: yes                                              │\n'
+      '│ [✓] Is Plugin: no                                                          │\n'
+      '└────────────────────────────────────────────────────────────────────────────┘\n';
+
+      expect(loggerTest.statusText, contains(expected));
+    });
+  });
+}