Applied Gradle Plugins Declaratively for path_provider

packages/path_provider/path_provider/example/android/app/build.gradle

@@ -1,3 +1,9 @@
+plugins {
+    id "com.android.application"
+    id "org.jetbrains.kotlin.android"
+    id "dev.flutter.flutter-gradle-plugin"
+}
+
 def localProperties = new Properties()
 def localPropertiesFile = rootProject.file('local.properties')
 if (localPropertiesFile.exists()) {
@@ -6,11 +12,6 @@ if (localPropertiesFile.exists()) {
     }
 }
 
-def flutterRoot = localProperties.getProperty('flutter.sdk')
-if (flutterRoot == null) {
-    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
-}
-
 def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
 if (flutterVersionCode == null) {
     flutterVersionCode = '1'
@@ -21,9 +22,6 @@ if (flutterVersionName == null) {
     flutterVersionName = '1.0'
 }
 
-apply plugin: 'com.android.application'
-apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
-
 android {
     namespace 'io.flutter.plugins.pathproviderexample'
     compileSdk flutter.compileSdkVersion
@@ -32,7 +30,7 @@ android {
     defaultConfig {
         applicationId "io.flutter.plugins.pathproviderexample"
         minSdkVersion flutter.minSdkVersion
-        targetSdkVersion 28
+        targetSdkVersion 35
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

packages/path_provider/path_provider/example/android/app/gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.8-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

packages/path_provider/path_provider/example/android/app/src/main/AndroidManifest.xml

@@ -6,6 +6,7 @@
     <application android:label="path_provider_example" android:icon="@mipmap/ic_launcher">
         <activity android:name="io.flutter.embedding.android.FlutterActivity"
                   android:launchMode="singleTop"
+                  android:exported="true"
                   android:theme="@android:style/Theme.Black.NoTitleBar"
                   android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection"
                   android:hardwareAccelerated="true"

packages/path_provider/path_provider/example/android/build.gradle

@@ -1,14 +1,3 @@
-buildscript {
-    repositories {
-        google()
-        mavenCentral()
-    }
-
-    dependencies {
-        classpath 'com.android.tools.build:gradle:8.5.2'
-    }
-}
-
 allprojects {
     repositories {
         // See https://github.com/flutter/flutter/blob/master/docs/ecosystem/Plugins-and-Packages-repository-structure.md#gradle-structure for more info.

packages/path_provider/path_provider/example/android/settings.gradle

@@ -1,28 +1,27 @@
-include ':app'
+pluginManagement {
+    def flutterSdkPath = {
+        def properties = new Properties()
+        file("local.properties").withInputStream { properties.load(it) }
+        def flutterSdkPath = properties.getProperty("flutter.sdk")
+        assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+        return flutterSdkPath
+    }()
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+    includeBuild("$flutterSdkPath/packages/flutter_tools/gradle")
 
-def plugins = new Properties()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
-if (pluginsFile.exists()) {
-    pluginsFile.withInputStream { stream -> plugins.load(stream) }
-}
-
-plugins.each { name, path ->
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
-    include ":$name"
-    project(":$name").projectDir = pluginDirectory
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
 }
 
 // See https://github.com/flutter/flutter/blob/master/docs/ecosystem/Plugins-and-Packages-repository-structure.md#gradle-structure for more info.
-buildscript {
-  repositories {
-    maven {
-      url "https://plugins.gradle.org/m2/"
-    }
-  }
-  dependencies {
-    classpath "gradle.plugin.com.google.cloud.artifactregistry:artifactregistry-gradle-plugin:2.2.1"
-  }
+plugins {
+    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
+    id "com.android.application" version "8.6.0" apply false
+    id "org.jetbrains.kotlin.android" version "1.7.10" apply false
+    id "com.google.cloud.artifactregistry.gradle-plugin" version "2.2.1"
 }
-apply plugin: "com.google.cloud.artifactregistry.gradle-plugin"
+
+include ":app"

script/tool/lib/src/gradle_check_command.dart

@@ -216,6 +216,19 @@ buildscript {
 apply plugin: "com.google.cloud.artifactregistry.gradle-plugin"
 ''';
 
+  /// String printed as a valid example of settings.gradle repository
+  /// configuration that enables artifact hub env variable.
+  /// GP stands for the gradle plugin method of flutter tooling inclusion.
+  @visibleForTesting
+  static String exampleSettingsArtifactHubStringGP = '''
+// See $artifactHubDocumentationString for more info.
+plugins {
+    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
+    // ...other plugins
+    id "com.google.cloud.artifactregistry.gradle-plugin" version "2.2.1"
+}
+  ''';
+
   /// Validates that [gradleLines] reads and uses a artifiact hub repository
   /// when ARTIFACT_HUB_REPOSITORY is set.
   ///
@@ -228,24 +241,31 @@ apply plugin: "com.google.cloud.artifactregistry.gradle-plugin"
         r'classpath.*gradle\.plugin\.com\.google\.cloud\.artifactregistry:artifactregistry-gradle-plugin');
     final RegExp artifactRegistryPluginApplyRegex = RegExp(
         r'apply.*plugin.*com\.google\.cloud\.artifactregistry\.gradle-plugin');
+    final RegExp artifactRegistryPluginApplyRegexGP = RegExp(
+        r'id.*com\.google\.cloud\.artifactregistry\.gradle-plugin.*version.*\b\d+\.\d+\.\d+\b');
+
 
     final bool documentationPresent = gradleLines
         .any((String line) => documentationPresentRegex.hasMatch(line));
     final bool artifactRegistryDefined = gradleLines
         .any((String line) => artifactRegistryDefinitionRegex.hasMatch(line));
     final bool artifactRegistryPluginApplied = gradleLines
         .any((String line) => artifactRegistryPluginApplyRegex.hasMatch(line));
+    final bool artifactRegistryPluginAppliedGP = gradleLines
+        .any((String line) => artifactRegistryPluginApplyRegexGP.hasMatch(line));
+
+    final bool validArtifactConfiguration = documentationPresent &&
+        ((artifactRegistryDefined && artifactRegistryPluginApplied) || artifactRegistryPluginAppliedGP);
 
-    if (!(documentationPresent &&
-        artifactRegistryDefined &&
-        artifactRegistryPluginApplied)) {
+    if (!validArtifactConfiguration && !artifactRegistryPluginAppliedGP) {
+      printError('Failed Artifact Hub validation. Include the following in '
+          'example root settings.gradle:\n$exampleSettingsArtifactHubStringGP');
+    }
+    if (!validArtifactConfiguration && !(artifactRegistryDefined && artifactRegistryPluginApplied)) {
       printError('Failed Artifact Hub validation. Include the following in '
           'example root settings.gradle:\n$exampleRootSettingsArtifactHubString');
     }
-
-    return documentationPresent &&
-        artifactRegistryDefined &&
-        artifactRegistryPluginApplied;
+    return validArtifactConfiguration;
   }
 
   /// Validates the top-level build.gradle for an example app (e.g.,

script/tool/test/gradle_check_command_test.dart

@@ -200,6 +200,51 @@ ${includeArtifactHub ? GradleCheckCommand.exampleRootSettingsArtifactHubString :
 ''');
   }
 
+  /// Writes a fake android/build.gradle file for an example [package] with the
+  /// given options.
+  void writeFakeExampleSettingsGradle(
+      RepositoryPackage package, {
+        bool includeArtifactHub = true,
+      }) {
+    final File settingsGradle = package
+        .platformDirectory(FlutterPlatform.android)
+        .childFile('settings.gradle');
+    settingsGradle.createSync(recursive: true);
+
+    /// String printed as a valid example of settings.gradle repository
+    /// configuration without the artifact hub env variable.
+    /// GP stands for the gradle plugin method of flutter tooling inclusion.
+    const String exampleSettingsWithoutArtifactHubStringGP = '''
+// See ${GradleCheckCommand.artifactHubDocumentationString} for more info.
+plugins {
+    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
+    // ...other plugins
+}
+  ''';
+
+    settingsGradle.writeAsStringSync('''
+pluginManagement {
+  def flutterSdkPath = {
+    def properties = new Properties()
+    file("local.properties").withInputStream { properties.load(it) }
+    def flutterSdkPath = properties.getProperty("flutter.sdk")
+    assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+    return flutterSdkPath
+  }()
+
+  includeBuild("\$flutterSdkPath/packages/flutter_tools/gradle")
+
+  repositories {
+    google()
+    mavenCentral()
+    gradlePluginPortal()
+  }
+}
+${includeArtifactHub ? GradleCheckCommand.exampleSettingsArtifactHubStringGP : exampleSettingsWithoutArtifactHubStringGP}
+include ":app"
+''');
+  }
+
   /// Writes a fake android/app/build.gradle file for an example [package] with
   /// the given options.
   void writeFakeExampleAppBuildGradle(
@@ -274,6 +319,31 @@ dependencies {
     );
   }
 
+  void writeFakeExampleBuildGradleGP(
+      RepositoryPackage package, {
+        required String pluginName,
+        bool includeNamespace = true,
+        bool commentNamespace = false,
+        bool warningsConfigured = true,
+        String? kotlinVersion,
+        bool includeBuildArtifactHub = true,
+        bool includeSettingsArtifactHub = true,
+      }) {
+    writeFakeExampleTopLevelBuildGradle(
+      package,
+      pluginName: pluginName,
+      warningsConfigured: warningsConfigured,
+      kotlinVersion: kotlinVersion,
+      includeArtifactHub: includeBuildArtifactHub,
+    );
+    writeFakeExampleAppBuildGradle(package,
+        includeNamespace: includeNamespace, commentNamespace: commentNamespace);
+    writeFakeExampleSettingsGradle(
+      package,
+      includeArtifactHub: includeSettingsArtifactHub,
+    );
+  }
+
   void writeFakeManifest(
     RepositoryPackage package, {
     bool isApp = false,
@@ -788,6 +858,43 @@ dependencies {
         output,
         isNot(contains(GradleCheckCommand.exampleRootGradleArtifactHubString)),
       );
+      expect(
+        output,
+        isNot(contains(GradleCheckCommand.exampleSettingsArtifactHubStringGP)),
+      );
+    });
+
+    test('contains declarative method of applying gradle plugins', () async {
+      const String packageName = 'a_package';
+      final RepositoryPackage package =
+      createFakePackage('a_package', packagesDir);
+      writeFakePluginBuildGradle(package, includeLanguageVersion: true);
+      writeFakeManifest(package);
+      final RepositoryPackage example = package.getExamples().first;
+      writeFakeExampleBuildGradleGP(example,
+          pluginName: packageName,
+          // ignore: avoid_redundant_argument_values
+          includeBuildArtifactHub: true,
+          includeSettingsArtifactHub: false);
+      writeFakeManifest(example, isApp: true);
+
+      Error? commandError;
+      final List<String> output = await runCapturingPrint(
+          runner, <String>['gradle-check'], errorHandler: (Error e) {
+        commandError = e;
+      });
+
+      expect(commandError, isA<ToolExit>());
+      expect(
+        output,
+        containsAllInOrder(<Matcher>[
+          contains(GradleCheckCommand.exampleSettingsArtifactHubStringGP),
+        ]),
+      );
+      expect(
+        output,
+        isNot(contains(GradleCheckCommand.exampleRootSettingsArtifactHubString)),
+      );
     });
   });