Don't import plugins that don't support android in settings.gradle (#54407)

dev/benchmarks/macrobenchmarks/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

dev/benchmarks/test_apps/stocks/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withInputStream { stream -> plugins.load(stream) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

dev/bots/test.dart

@@ -917,6 +917,7 @@ Future<void> _runHostOnlyDeviceLabTests() async {
     // TODO(ianh): Fails on macOS looking for "dexdump", https://github.com/flutter/flutter/issues/42494
     if (!Platform.isMacOS) () => _runDevicelabTest('gradle_jetifier_test', environment: gradleEnvironment),
     () => _runDevicelabTest('gradle_non_android_plugin_test', environment: gradleEnvironment),
+    () => _runDevicelabTest('gradle_deprecated_settings_test', environment: gradleEnvironment),
     () => _runDevicelabTest('gradle_plugin_bundle_test', environment: gradleEnvironment),
     () => _runDevicelabTest('gradle_plugin_fat_apk_test', environment: gradleEnvironment),
     () => _runDevicelabTest('gradle_plugin_light_apk_test', environment: gradleEnvironment),

dev/devicelab/bin/tasks/gradle_deprecated_settings_test.dart

@@ -0,0 +1,57 @@
+// 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.
+
+import 'dart:async';
+import 'dart:io';
+
+import 'package:flutter_devicelab/framework/framework.dart';
+import 'package:flutter_devicelab/framework/utils.dart';
+import 'package:path/path.dart' as path;
+
+/// Tests that apps can be built using the deprecated `android/settings.gradle` file.
+/// This test should be removed once apps have been migrated to this new file.
+// TODO(egarciad): Migrate existing files, https://github.com/flutter/flutter/issues/54566
+Future<void> main() async {
+  await task(() async {
+
+    section('Find Java');
+
+    final String javaHome = await findJavaHome();
+    if (javaHome == null)
+      return TaskResult.failure('Could not find Java');
+    print('\nUsing JAVA_HOME=$javaHome');
+
+    final Directory projectDirectory =
+        dir('${flutterDirectory.path}/dev/integration_tests/gradle_deprecated_settings');
+    try {
+      section('Build debug APK using deprecated settings.gradle');
+      await inDirectory(projectDirectory, () async {
+        await flutter(
+          'build',
+          options: <String>[
+            'apk',
+            '--debug',
+            '--target-platform', 'android-arm',
+            '--no-shrink',
+            '--verbose',
+          ],
+        );
+      });
+      final File debugApk = File(path.join(
+        projectDirectory.path,
+        'build',
+        'app',
+        'outputs',
+        'flutter-apk',
+        'app-debug.apk',
+      ));
+      if (!exists(debugApk)) {
+        return TaskResult.failure('Failed to build debug APK.');
+      }
+      return TaskResult.success(null);
+    } catch (e) {
+      return TaskResult.failure(e.toString());
+    }
+  });
+}

dev/devicelab/bin/tasks/gradle_migrate_settings_test.dart

@@ -117,7 +117,7 @@ plugins.each { name, path ->
 
       section('Override settings.gradle with custom logic');
 
-      const String customDeprecatedFileContent = '''
+      const String customDeprecatedFileContent = r'''
 include ':app'
 
 def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
@@ -130,8 +130,8 @@ if (pluginsFile.exists()) {
 
 plugins.each { name, path ->
     def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
-    include ":\$name"
+    include ":$name"
-    project(":\$name").projectDir = pluginDirectory
+    project(":$name").projectDir = pluginDirectory
 }
 // some custom logic
 ''';

dev/integration_tests/abstract_method_smoke_test/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

dev/integration_tests/android_embedding_v2_smoke_test/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

dev/integration_tests/android_semantics_testing/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withInputStream { stream -> plugins.load(stream) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

dev/integration_tests/android_splash_screens/splash_screen_kitchen_sink/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

dev/integration_tests/android_splash_screens/splash_screen_load_rotate/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

dev/integration_tests/android_splash_screens/splash_screen_trans_rotate/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

dev/integration_tests/android_views/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

dev/integration_tests/channels/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withInputStream { stream -> plugins.load(stream) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

dev/integration_tests/codegen/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withInputStream { stream -> plugins.load(stream) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

dev/integration_tests/external_ui/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withInputStream { stream -> plugins.load(stream) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

dev/integration_tests/flavors/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withInputStream { stream -> plugins.load(stream) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

dev/integration_tests/flutter_driver_screenshot_test/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

dev/integration_tests/flutter_gallery/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withInputStream { stream -> plugins.load(stream) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

dev/integration_tests/gradle_deprecated_settings/README.md

@@ -0,0 +1,7 @@
+# Deprecated settings.gradle
+
+This project is meant to test that apps using the current `android/settings.gradle`
+can still be built. This project can be removed once apps have been migrated to
+this new file.
+
+Issue: https://github.com/flutter/flutter/issues/54566

dev/integration_tests/gradle_deprecated_settings/android/app/build.gradle

@@ -0,0 +1,45 @@
+// 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.
+
+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file('local.properties')
+if (localPropertiesFile.exists()) {
+    localPropertiesFile.withInputStream { stream ->
+        localProperties.load(stream)
+    }
+}
+
+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.")
+}
+
+apply plugin: 'com.android.application'
+apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+
+android {
+    compileSdkVersion 28
+
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+
+    defaultConfig {
+        applicationId "com.yourcompany.flavors"
+        minSdkVersion 21
+        targetSdkVersion 28
+        versionCode 1
+        versionName "1.0"
+    }
+
+    buildTypes {
+        release {
+            signingConfig signingConfigs.debug
+        }
+    }
+}
+
+flutter {
+    source '../..'
+}

dev/integration_tests/gradle_deprecated_settings/android/app/src/main/AndroidManifest.xml

@@ -0,0 +1,25 @@
+<!-- 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. -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.yourcompany.flavors">
+
+    <uses-permission android:name="android.permission.INTERNET"/>
+
+    <application
+        android:name="io.flutter.app.FlutterApplication"
+        android:label="flavors">
+        <activity
+            android:name=".MainActivity"
+            android:launchMode="singleTop"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+    </application>
+</manifest>

dev/integration_tests/gradle_deprecated_settings/android/app/src/main/java/com/yourcompany/flavors/MainActivity.java

@@ -0,0 +1,26 @@
+// 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.
+
+package com.yourcompany.flavors;
+
+import android.os.Bundle;
+
+import io.flutter.app.FlutterActivity;
+import io.flutter.plugin.common.MethodCall;
+import io.flutter.plugin.common.MethodChannel;
+import io.flutter.plugins.GeneratedPluginRegistrant;
+
+public class MainActivity extends FlutterActivity {
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    GeneratedPluginRegistrant.registerWith(this);
+    new MethodChannel(getFlutterView(), "flavor").setMethodCallHandler(new MethodChannel.MethodCallHandler() {
+      @Override
+      public void onMethodCall(MethodCall methodCall, MethodChannel.Result result) {
+        result.success(BuildConfig.FLAVOR);
+      }
+    });
+  }
+}

dev/integration_tests/gradle_deprecated_settings/android/build.gradle

@@ -0,0 +1,33 @@
+// 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.
+
+buildscript {
+    repositories {
+        google()
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.5.0'
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+rootProject.buildDir = '../build'
+subprojects {
+    project.buildDir = "${rootProject.buildDir}/${project.name}"
+}
+subprojects {
+    project.evaluationDependsOn(':app')
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

dev/integration_tests/gradle_deprecated_settings/android/gradle.properties

@@ -0,0 +1,4 @@
+org.gradle.jvmargs=-Xmx1536M
+android.useAndroidX=true
+android.enableJetifier=true
+android.enableR8=true

dev/integration_tests/gradle_deprecated_settings/android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Fri Jun 23 08:50:38 CEST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip

dev/integration_tests/gradle_deprecated_settings/android/settings.gradle

@@ -0,0 +1,24 @@
+// 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.
+
+// This is the `settings.gradle` file that apps currently use.
+// This file has changed, so it must be migrated in existing projects.
+
+include ':app'
+
+def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
+
+def plugins = new Properties()
+def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+if (pluginsFile.exists()) {
+    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
+}
+
+plugins.each { name, path ->
+    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+    include ":$name"
+    project(":$name").projectDir = pluginDirectory
+}

dev/integration_tests/gradle_deprecated_settings/lib/main.dart

@@ -0,0 +1,9 @@
+// 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.
+
+import 'package:flutter/material.dart';
+
+void main() {
+  runApp(const Text('Nothing to show'));
+}

dev/integration_tests/gradle_deprecated_settings/pubspec.yaml

@@ -0,0 +1,21 @@
+name: gradle_deprecated_settings
+description: Integration test for the current settings.gradle.
+
+environment:
+  # The pub client defaults to an <2.0.0 sdk constraint which we need to explicitly overwrite.
+  sdk: ">=2.0.0-dev.68.0 <3.0.0"
+
+dependencies:
+  flutter:
+    sdk: flutter
+  camera: 0.5.7+4
+
+  collection: 1.14.12 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  meta: 1.1.8 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  typed_data: 1.1.6 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+  vector_math: 2.0.8 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
+
+flutter:
+  uses-material-design: true
+
+# PUBSPEC CHECKSUM: 185d

dev/integration_tests/image_loading/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withInputStream { stream -> plugins.load(stream) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

dev/integration_tests/named_isolates/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withInputStream { stream -> plugins.load(stream) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

dev/integration_tests/platform_interaction/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withInputStream { stream -> plugins.load(stream) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

dev/integration_tests/release_smoke_test/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

dev/integration_tests/ui/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withInputStream { stream -> plugins.load(stream) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

dev/manual_tests/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

examples/catalog/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withInputStream { stream -> plugins.load(stream) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

examples/flutter_view/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withInputStream { stream -> plugins.load(stream) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

examples/hello_world/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withInputStream { stream -> plugins.load(stream) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

examples/image_list/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

examples/layers/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withInputStream { stream -> plugins.load(stream) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

examples/platform_channel/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withInputStream { stream -> plugins.load(stream) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

examples/platform_view/android/settings.gradle

@@ -4,16 +4,12 @@
 
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withInputStream { stream -> plugins.load(stream) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

packages/flutter_tools/gradle/app_plugin_loader.gradle

@@ -0,0 +1,30 @@
+// 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.
+
+// This file is included from `<app>/android/settings.gradle`,
+// so it can be versioned with the Flutter SDK.
+
+import groovy.json.JsonSlurper
+
+def flutterProjectRoot = rootProject.projectDir.parentFile
+
+// Note: if this logic is changed, also change the logic in module_plugin_loader.gradle.
+def pluginsFile = new File(flutterProjectRoot, '.flutter-plugins-dependencies')
+if (!pluginsFile.exists()) {
+  return
+}
+
+def object = new JsonSlurper().parseText(pluginsFile.text)
+assert object instanceof Map
+assert object.plugins instanceof Map
+assert object.plugins.android instanceof List
+// Includes the Flutter plugins that support the Android platform.
+object.plugins.android.each { androidPlugin ->
+  assert androidPlugin.name instanceof String
+  assert androidPlugin.path instanceof String
+  def pluginDirectory = new File(androidPlugin.path, 'android')
+  assert pluginDirectory.exists()
+  include ":${androidPlugin.name}"
+  project(":${androidPlugin.name}").projectDir = pluginDirectory
+}

packages/flutter_tools/gradle/deprecated_settings.gradle

@@ -29,3 +29,19 @@ plugins.each { name, path ->
     include ":$name"
     project(":$name").projectDir = pluginDirectory
 }
+;EOF
+// 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.
+
+include ':app'
+
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
+
+assert localPropertiesFile.exists()
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
+
+def flutterSdkPath = properties.getProperty("flutter.sdk")
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"

packages/flutter_tools/gradle/manual_migration_settings.gradle.md

@@ -3,17 +3,12 @@ To manually update `settings.gradle`, follow these steps:
     1. Copy `settings.gradle` as `settings_aar.gradle`
     2. Remove the following code from `settings_aar.gradle`:
 
-            def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+        def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+        def properties = new Properties()
 
-            def plugins = new Properties()
+        assert localPropertiesFile.exists()
-            def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+        localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-            if (pluginsFile.exists()) {
-                pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
-            }
-
-            plugins.each { name, path ->
-                def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
-                include ":$name"
-                project(":$name").projectDir = pluginDirectory
-            }
 
+        def flutterSdkPath = properties.getProperty("flutter.sdk")
+        assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+        apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"

packages/flutter_tools/gradle/module_plugin_loader.gradle

@@ -0,0 +1,44 @@
+// 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.
+
+// This file is included from `<module>/.android/include_flutter.groovy`,
+// so it can be versioned with the Flutter SDK.
+
+import groovy.json.JsonSlurper
+
+def moduleProjectRoot = project(':flutter').projectDir.parentFile.parentFile
+
+// Note: if this logic is changed, also change the logic in app_plugin_loader.gradle.
+def pluginsFile = new File(moduleProjectRoot, '.flutter-plugins-dependencies')
+if (pluginsFile.exists()) {
+    def object = new JsonSlurper().parseText(pluginsFile.text)
+    assert object instanceof Map
+    assert object.plugins instanceof Map
+    assert object.plugins.android instanceof List
+    // Includes the Flutter plugins that support the Android platform.
+    object.plugins.android.each { androidPlugin ->
+        assert androidPlugin.name instanceof String
+        assert androidPlugin.path instanceof String
+        def pluginDirectory = new File(androidPlugin.path, 'android')
+        assert pluginDirectory.exists()
+        include ":${androidPlugin.name}"
+        project(":${androidPlugin.name}").projectDir = pluginDirectory
+    }
+}
+
+gradle.getGradle().projectsLoaded { g ->
+    g.rootProject.beforeEvaluate { p ->
+        def _mainModuleName = binding.variables['mainModuleName']
+        if (_mainModuleName != null && !_mainModuleName.empty) {
+            p.ext.mainModuleName = _mainModuleName
+        }
+    }
+    g.rootProject.afterEvaluate { p ->
+        p.subprojects { sp ->
+            if (sp.name != 'flutter') {
+                sp.evaluationDependsOn(':flutter')
+            }
+        }
+    }
+}

packages/flutter_tools/templates/app/android.tmpl/settings.gradle

@@ -1,15 +1,15 @@
+// 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.
+
 include ':app'
 
-def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-def plugins = new Properties()
+assert localPropertiesFile.exists()
-def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-if (pluginsFile.exists()) {
-    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
-}
 
-plugins.each { name, path ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-    include ":$name"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
-    project(":$name").projectDir = pluginDirectory
-}

packages/flutter_tools/templates/module/android/library/include_flutter.groovy.copy.tmpl

@@ -1,35 +1,20 @@
-// Generated file. Do not edit.
+// 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.
 
 def scriptFile = getClass().protectionDomain.codeSource.location.toURI()
 def flutterProjectRoot = new File(scriptFile).parentFile.parentFile
 
-gradle.include ':flutter'
+gradle.include ":flutter"
-gradle.project(':flutter').projectDir = new File(flutterProjectRoot, '.android/Flutter')
+gradle.project(":flutter").projectDir = new File(flutterProjectRoot, ".android/Flutter")
 
-def plugins = new Properties()
+def localPropertiesFile = new File(flutterProjectRoot, ".android/local.properties")
-def pluginsFile = new File(flutterProjectRoot, '.flutter-plugins')
+def properties = new Properties()
-if (pluginsFile.exists()) {
-    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
-}
 
-plugins.each { name, path ->
+assert localPropertiesFile.exists(), "❗️The Flutter module doesn't have a `$localPropertiesFile` file." +
-    def pluginDirectory = flutterProjectRoot.toPath().resolve(path).resolve('android').toFile()
+                                     "\nYou must run `flutter pub get` in `$flutterProjectRoot`."
-    gradle.include ":$name"
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-    gradle.project(":$name").projectDir = pluginDirectory
-}
 
-gradle.getGradle().projectsLoaded { g ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    g.rootProject.beforeEvaluate { p ->
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-        _mainModuleName = binding.variables['mainModuleName']
+gradle.apply from: "$flutterSdkPath/packages/flutter_tools/gradle/module_plugin_loader.gradle"
-        if (_mainModuleName != null && !_mainModuleName.empty) {
-            p.ext.mainModuleName = _mainModuleName
-        }
-    }
-    g.rootProject.afterEvaluate { p ->
-        p.subprojects { sp ->
-            if (sp.name != 'flutter') {
-                sp.evaluationDependsOn(':flutter')
-            }
-        }
-    }
-}

packages/flutter_tools/templates/module/android/library_new_embedding/include_flutter.groovy.copy.tmpl

@@ -1,35 +1,20 @@
-// Generated file. Do not edit.
+// 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.
 
 def scriptFile = getClass().protectionDomain.codeSource.location.toURI()
 def flutterProjectRoot = new File(scriptFile).parentFile.parentFile
 
-gradle.include ':flutter'
+gradle.include ":flutter"
-gradle.project(':flutter').projectDir = new File(flutterProjectRoot, '.android/Flutter')
+gradle.project(":flutter").projectDir = new File(flutterProjectRoot, ".android/Flutter")
 
-def plugins = new Properties()
+def localPropertiesFile = new File(flutterProjectRoot, ".android/local.properties")
-def pluginsFile = new File(flutterProjectRoot, '.flutter-plugins')
+def properties = new Properties()
-if (pluginsFile.exists()) {
-    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
-}
 
-plugins.each { name, path ->
+assert localPropertiesFile.exists(), "❗️The Flutter module doesn't have a `$localPropertiesFile` file." +
-    def pluginDirectory = flutterProjectRoot.toPath().resolve(path).resolve('android').toFile()
+                                     "\nYou must run `flutter pub get` in `$flutterProjectRoot`."
-    gradle.include ":$name"
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
-    gradle.project(":$name").projectDir = pluginDirectory
-}
 
-gradle.getGradle().projectsLoaded { g ->
+def flutterSdkPath = properties.getProperty("flutter.sdk")
-    g.rootProject.beforeEvaluate { p ->
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-        _mainModuleName = binding.variables['mainModuleName']
+gradle.apply from: "$flutterSdkPath/packages/flutter_tools/gradle/module_plugin_loader.gradle"
-        if (_mainModuleName != null && !_mainModuleName.empty) {
-            p.ext.mainModuleName = _mainModuleName
-        }
-    }
-    g.rootProject.afterEvaluate { p ->
-        p.subprojects { sp ->
-            if (sp.name != 'flutter') {
-                sp.evaluationDependsOn(':flutter')
-            }
-        }
-    }
-}

packages/flutter_tools/test/general.shard/android/gradle_test.dart

@@ -470,8 +470,10 @@ if (pluginsFile.exists()) {
 
 plugins.each { name, path ->
     def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
-    include ":$name"
+    if (pluginDirectory.exists()) {
-    project(":$name").projectDir = pluginDirectory
+        include ":$name"
+        project(":$name").projectDir = pluginDirectory
+    }
 }
 ''';