Update gradle lockfiles template (#140115)

This PR updates almost* all Gradle buildscripts in the Flutter repo the `example` and `dev` (in particular, in `dev/integration_tests` and in `dev/benchmarks`) directories to apply Flutter's Gradle plugins using the declarative `plugins {}` block.

*almost, because:
- add-to-app (aka hybrid) apps are not migrated (related flutter/flutter#138756)
- apps that purposefully use build files to ensure backward compatibility (e.g. [`gradle_deprecated_settings`](https://github.com/flutter/flutter/tree/3.16.0/dev/integration_tests/gradle_deprecated_settings))

Author: bartekpacia

dev/a11y_assessments/android/build.gradle

@@ -6,23 +6,6 @@
 // To update all the build.gradle files in the Flutter repo,
 // See dev/tools/bin/generate_gradle_lockfiles.dart.
 
-buildscript {
-    ext.kotlin_version = '1.7.10'
-    repositories {
-        google()
-        mavenCentral()
-    }
-
-    dependencies {
-        classpath 'com.android.tools.build:gradle:7.3.0'
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-    }
-
-    configurations.classpath {
-        resolutionStrategy.activateDependencyLocking()
-    }
-}
-
 allprojects {
     repositories {
         google()

dev/a11y_assessments/android/settings.gradle

@@ -17,8 +17,18 @@ pluginManagement {
     settings.ext.flutterSdkPath = flutterSdkPath()
 
     includeBuild("${settings.ext.flutterSdkPath}/packages/flutter_tools/gradle")
+
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
 }
 
-include ":app"
+plugins {
+    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
+    id "com.android.application" version "7.3.0" apply false
+    id "org.jetbrains.kotlin.android" version "1.7.10" apply false
+}
 
-apply from: "${settings.ext.flutterSdkPath}/packages/flutter_tools/gradle/app_plugin_loader.gradle"
+include ":app"

dev/benchmarks/complex_layout/android/app/build.gradle

@@ -2,6 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+plugins {
+    id "com.android.application"
+    id "dev.flutter.flutter-gradle-plugin"
+}
+
 def localProperties = new Properties()
 def localPropertiesFile = rootProject.file('local.properties')
 if (localPropertiesFile.exists()) {
@@ -10,13 +15,15 @@ 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'
 }
 
-apply plugin: 'com.android.application'
-apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+def flutterVersionName = localProperties.getProperty('flutter.versionName')
+if (flutterVersionName == null) {
+    flutterVersionName = '1.0'
+}
 
 android {
     namespace "com.yourcompany.complexLayout"

dev/benchmarks/complex_layout/android/build.gradle

@@ -6,23 +6,6 @@
 // To update all the build.gradle files in the Flutter repo,
 // See dev/tools/bin/generate_gradle_lockfiles.dart.
 
-buildscript {
-    ext.kotlin_version = '1.7.10'
-    repositories {
-        google()
-        mavenCentral()
-    }
-
-    dependencies {
-        classpath 'com.android.tools.build:gradle:7.3.0'
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-    }
-
-    configurations.classpath {
-        resolutionStrategy.activateDependencyLocking()
-    }
-}
-
 allprojects {
     repositories {
         google()

dev/benchmarks/complex_layout/android/buildscript-gradle.lockfile

@@ -3,6 +3,7 @@
 # This file is expected to be part of source control.
 androidx.databinding:databinding-common:7.3.0=classpath
 androidx.databinding:databinding-compiler-common:7.3.0=classpath
+com.android.application:com.android.application.gradle.plugin:7.3.0=classpath
 com.android.databinding:baseLibrary:7.3.0=classpath
 com.android.tools.analytics-library:crash:30.3.0=classpath
 com.android.tools.analytics-library:protos:30.3.0=classpath
@@ -109,6 +110,7 @@ org.glassfish.jaxb:jaxb-runtime:2.3.2=classpath
 org.glassfish.jaxb:txw2:2.3.2=classpath
 org.jdom:jdom2:2.0.6=classpath
 org.jetbrains.intellij.deps:trove4j:1.0.20200330=classpath
+org.jetbrains.kotlin.android:org.jetbrains.kotlin.android.gradle.plugin:1.7.10=classpath
 org.jetbrains.kotlin:kotlin-android-extensions:1.7.10=classpath
 org.jetbrains.kotlin:kotlin-annotation-processing-gradle:1.7.10=classpath
 org.jetbrains.kotlin:kotlin-build-common:1.7.10=classpath

dev/benchmarks/complex_layout/android/settings.gradle

@@ -18,11 +18,24 @@ pluginManagement {
 
     includeBuild("${settings.ext.flutterSdkPath}/packages/flutter_tools/gradle")
 
-    plugins {
-        id "dev.flutter.flutter-gradle-plugin" version "1.0.0" apply false
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
     }
 }
 
-include ":app"
+buildscript {
+    dependencyLocking {
+        lockFile = file("${rootProject.projectDir}/buildscript-gradle.lockfile")
+        lockAllConfigurations()
+    }
+}
 
-apply from: "${settings.ext.flutterSdkPath}/packages/flutter_tools/gradle/app_plugin_loader.gradle"
+plugins {
+    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
+    id "com.android.application" version "7.3.0" apply false
+    id "org.jetbrains.kotlin.android" version "1.7.10" apply false
+}
+
+include ":app"

dev/benchmarks/macrobenchmarks/android/app/build.gradle

@@ -2,6 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+plugins {
+    id "com.android.application"
+    id "dev.flutter.flutter-gradle-plugin"
+}
+
 def localProperties = new Properties()
 def localPropertiesFile = rootProject.file('local.properties')
 if (localPropertiesFile.exists()) {
@@ -10,11 +15,6 @@ 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'
@@ -25,9 +25,6 @@ if (flutterVersionName == null) {
     flutterVersionName = '1.0'
 }
 
-apply plugin: 'com.android.application'
-apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
-
 android {
     namespace "com.example.macrobenchmarks"
     compileSdk flutter.compileSdkVersion

dev/benchmarks/macrobenchmarks/android/build.gradle

@@ -6,23 +6,6 @@
 // To update all the build.gradle files in the Flutter repo,
 // See dev/tools/bin/generate_gradle_lockfiles.dart.
 
-buildscript {
-    ext.kotlin_version = '1.7.10'
-    repositories {
-        google()
-        mavenCentral()
-    }
-
-    dependencies {
-        classpath 'com.android.tools.build:gradle:7.3.0'
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-    }
-
-    configurations.classpath {
-        resolutionStrategy.activateDependencyLocking()
-    }
-}
-
 allprojects {
     repositories {
         google()

dev/benchmarks/macrobenchmarks/android/buildscript-gradle.lockfile

@@ -3,6 +3,7 @@
 # This file is expected to be part of source control.
 androidx.databinding:databinding-common:7.3.0=classpath
 androidx.databinding:databinding-compiler-common:7.3.0=classpath
+com.android.application:com.android.application.gradle.plugin:7.3.0=classpath
 com.android.databinding:baseLibrary:7.3.0=classpath
 com.android.tools.analytics-library:crash:30.3.0=classpath
 com.android.tools.analytics-library:protos:30.3.0=classpath
@@ -109,6 +110,7 @@ org.glassfish.jaxb:jaxb-runtime:2.3.2=classpath
 org.glassfish.jaxb:txw2:2.3.2=classpath
 org.jdom:jdom2:2.0.6=classpath
 org.jetbrains.intellij.deps:trove4j:1.0.20200330=classpath
+org.jetbrains.kotlin.android:org.jetbrains.kotlin.android.gradle.plugin:1.7.10=classpath
 org.jetbrains.kotlin:kotlin-android-extensions:1.7.10=classpath
 org.jetbrains.kotlin:kotlin-annotation-processing-gradle:1.7.10=classpath
 org.jetbrains.kotlin:kotlin-build-common:1.7.10=classpath

dev/benchmarks/macrobenchmarks/android/settings.gradle

@@ -18,11 +18,24 @@ pluginManagement {
 
     includeBuild("${settings.ext.flutterSdkPath}/packages/flutter_tools/gradle")
 
-    plugins {
-        id "dev.flutter.flutter-gradle-plugin" version "1.0.0" apply false
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
     }
 }
 
-include ":app"
+buildscript {
+    dependencyLocking {
+        lockFile = file("${rootProject.projectDir}/buildscript-gradle.lockfile")
+        lockAllConfigurations()
+    }
+}
 
-apply from: "${settings.ext.flutterSdkPath}/packages/flutter_tools/gradle/app_plugin_loader.gradle"
+plugins {
+    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
+    id "com.android.application" version "7.3.0" apply false
+    id "org.jetbrains.kotlin.android" version "1.7.10" apply false
+}
+
+include ":app"

dev/benchmarks/microbenchmarks/android/app/build.gradle

@@ -2,6 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+plugins {
+    id "com.android.application"
+    id "dev.flutter.flutter-gradle-plugin"
+}
+
 def localProperties = new Properties()
 def localPropertiesFile = rootProject.file('local.properties')
 if (localPropertiesFile.exists()) {
@@ -10,13 +15,15 @@ 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'
 }
 
-apply plugin: 'com.android.application'
-apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+def flutterVersionName = localProperties.getProperty('flutter.versionName')
+if (flutterVersionName == null) {
+    flutterVersionName = '1.0'
+}
 
 android {
     namespace "com.yourcompany.microbenchmarks"
@@ -30,8 +37,8 @@ android {
     defaultConfig {
         minSdkVersion flutter.minSdkVersion
         targetSdkVersion flutter.targetSdkVersion
-        versionCode 1
-        versionName "0.0.1"
+        versionCode flutterVersionCode.toInteger()
+        versionName flutterVersionName
     }
 
     buildTypes {

dev/benchmarks/microbenchmarks/android/build.gradle

@@ -2,27 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// This file is auto generated.
-// To update all the build.gradle files in the Flutter repo,
-// See dev/tools/bin/generate_gradle_lockfiles.dart.
-
-buildscript {
-    ext.kotlin_version = '1.7.10'
-    repositories {
-        google()
-        mavenCentral()
-    }
-
-    dependencies {
-        classpath 'com.android.tools.build:gradle:7.3.0'
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-    }
-
-    configurations.classpath {
-        resolutionStrategy.activateDependencyLocking()
-    }
-}
-
 allprojects {
     repositories {
         google()

dev/benchmarks/microbenchmarks/android/settings.gradle

@@ -2,20 +2,29 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// This file is auto generated.
-// To update all the build.gradle files in the Flutter repo,
-// See dev/tools/bin/generate_gradle_lockfiles.dart.
+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
+    }
+    settings.ext.flutterSdkPath = flutterSdkPath()
 
-include ':app'
+    includeBuild("${settings.ext.flutterSdkPath}/packages/flutter_tools/gradle")
 
-enableFeaturePreview('ONE_LOCKFILE_PER_PROJECT')
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
 
-def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
-def properties = new Properties()
+plugins {
+    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
+    id "com.android.application" version "7.3.0" apply false
+    id "org.jetbrains.kotlin.android" version "1.7.10" apply false
+}
 
-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"
+include ":app"