gRPC Gradle: Android Source Sets

docs/environment.md

@@ -61,6 +61,12 @@ Go to `Settings` -> `Build, Execution, Deployment` -> `Build Tools` -> `Gradle`
 - `Distribution` is set to `Wrapper`
 - `Gradle JVM` is set to `JAVA_HOME` and the value is correct
 
+## Android SDK
+In the root of the project you should create a `local.properties` file with the location of the Android SDK:
+```properties
+sdk.dir=/Users/<user>/Library/Android/sdk
+```
+
 ## Git and GitHub
 
 Make sure your commit signing is set up. Check the

gradle-plugin/api/gradle-plugin.api

@@ -66,7 +66,6 @@ public final class kotlinx/rpc/buf/BufExtension$LogFormat : java/lang/Enum {
 }
 
 public class kotlinx/rpc/buf/BufGenerateExtension {
-	public final fun allTasks ()Lkotlinx/rpc/buf/tasks/BufTasks;
 	public final fun comments (Lorg/gradle/api/Action;)V
 	public final fun getComments ()Lkotlinx/rpc/buf/BufCommentsExtension;
 	public final fun getErrorFormat ()Lorg/gradle/api/provider/Property;
@@ -88,9 +87,8 @@ public final class kotlinx/rpc/buf/BufGenerateExtension$ErrorFormat : java/lang/
 }
 
 public class kotlinx/rpc/buf/BufTasksExtension {
-	public final fun all ()Lkotlinx/rpc/buf/tasks/BufAllTasks;
-	public final fun registerWorkspaceTask (Lkotlin/reflect/KClass;Ljava/lang/String;Lorg/gradle/api/Action;)Lkotlinx/rpc/buf/tasks/BufTasks;
-	public static synthetic fun registerWorkspaceTask$default (Lkotlinx/rpc/buf/BufTasksExtension;Lkotlin/reflect/KClass;Ljava/lang/String;Lorg/gradle/api/Action;ILjava/lang/Object;)Lkotlinx/rpc/buf/tasks/BufTasks;
+	public final fun registerWorkspaceTask (Lkotlin/reflect/KClass;Ljava/lang/String;Lorg/gradle/api/Action;)Lkotlinx/rpc/protoc/ProtoTasks;
+	public static synthetic fun registerWorkspaceTask$default (Lkotlinx/rpc/buf/BufTasksExtension;Lkotlin/reflect/KClass;Ljava/lang/String;Lorg/gradle/api/Action;ILjava/lang/Object;)Lkotlinx/rpc/protoc/ProtoTasks;
 }
 
 public final class kotlinx/rpc/buf/ConstsKt {
@@ -99,35 +97,20 @@ public final class kotlinx/rpc/buf/ConstsKt {
 	public static final field BUF_YAML Ljava/lang/String;
 }
 
-public abstract interface class kotlinx/rpc/buf/tasks/BufAllTasks : kotlinx/rpc/buf/tasks/BufTasks {
-	public abstract fun matchingType (Lkotlin/reflect/KClass;)Lkotlinx/rpc/buf/tasks/BufTasks;
-}
-
-public abstract class kotlinx/rpc/buf/tasks/BufExecTask : org/gradle/api/DefaultTask {
-	public fun <init> (Lkotlinx/rpc/buf/tasks/BufExecTask$Properties;)V
+public abstract class kotlinx/rpc/buf/tasks/BufExecTask : kotlinx/rpc/protoc/DefaultProtoTask {
+	public fun <init> (Lkotlinx/rpc/protoc/ProtoTask$Properties;)V
 	public abstract fun getArgs ()Lorg/gradle/api/provider/ListProperty;
 	public abstract fun getBufTimeoutInWholeSeconds ()Lorg/gradle/api/provider/Property;
 	public abstract fun getCommand ()Lorg/gradle/api/provider/Property;
 	public abstract fun getConfigFile ()Lorg/gradle/api/provider/Property;
+	public abstract fun getDebug ()Lorg/gradle/api/provider/Property;
 	public abstract fun getLogFormat ()Lorg/gradle/api/provider/Property;
-	public final fun getProperties ()Lkotlinx/rpc/buf/tasks/BufExecTask$Properties;
 	public abstract fun getWorkingDir ()Lorg/gradle/api/provider/Property;
 }
 
-public final class kotlinx/rpc/buf/tasks/BufExecTask$AndroidProperties : kotlinx/rpc/buf/tasks/BufExecTask$Properties {
-	public final fun getBuildType ()Ljava/lang/String;
-	public final fun getFlavor ()Ljava/lang/String;
-	public final fun getVariant ()Ljava/lang/String;
-}
-
-public class kotlinx/rpc/buf/tasks/BufExecTask$Properties {
-	public final fun getSourceSetName ()Ljava/lang/String;
-	public final fun isTest ()Z
-}
-
 public final class kotlinx/rpc/buf/tasks/BufExecTaskKt {
-	public static final fun registerBufExecTask (Lorg/gradle/api/Project;Lkotlin/reflect/KClass;Ljava/lang/String;Lorg/gradle/api/provider/Provider;Lkotlinx/rpc/buf/tasks/BufExecTask$Properties;Lkotlin/jvm/functions/Function1;)Lorg/gradle/api/tasks/TaskProvider;
-	public static synthetic fun registerBufExecTask$default (Lorg/gradle/api/Project;Lkotlin/reflect/KClass;Ljava/lang/String;Lorg/gradle/api/provider/Provider;Lkotlinx/rpc/buf/tasks/BufExecTask$Properties;Lkotlin/jvm/functions/Function1;ILjava/lang/Object;)Lorg/gradle/api/tasks/TaskProvider;
+	public static final fun registerBufExecTask (Lorg/gradle/api/Project;Lkotlin/reflect/KClass;Ljava/lang/String;Lorg/gradle/api/provider/Provider;Lkotlinx/rpc/protoc/ProtoTask$Properties;Lkotlin/jvm/functions/Function1;)Lorg/gradle/api/tasks/TaskProvider;
+	public static synthetic fun registerBufExecTask$default (Lorg/gradle/api/Project;Lkotlin/reflect/KClass;Ljava/lang/String;Lorg/gradle/api/provider/Provider;Lkotlinx/rpc/protoc/ProtoTask$Properties;Lkotlin/jvm/functions/Function1;ILjava/lang/Object;)Lorg/gradle/api/tasks/TaskProvider;
 }
 
 public abstract class kotlinx/rpc/buf/tasks/BufGenerateTask : kotlinx/rpc/buf/tasks/BufExecTask {
@@ -138,36 +121,16 @@ public abstract class kotlinx/rpc/buf/tasks/BufGenerateTask : kotlinx/rpc/buf/ta
 	public abstract fun getIncludeImports ()Lorg/gradle/api/provider/Property;
 	public abstract fun getIncludeWkt ()Lorg/gradle/api/provider/Property;
 	public abstract fun getOutputDirectory ()Lorg/gradle/api/provider/Property;
+	public final fun getOutputSourceDirectories ()Lorg/gradle/api/provider/Provider;
+	public abstract fun getPluginNames ()Lorg/gradle/api/provider/ListProperty;
 }
 
-public abstract interface class kotlinx/rpc/buf/tasks/BufTasks : org/gradle/api/tasks/TaskCollection {
-	public abstract fun executedForKotlinSourceSet (Lorg/gradle/api/NamedDomainObjectProvider;)Lkotlinx/rpc/buf/tasks/BufTasks;
-	public abstract fun executedForKotlinSourceSet (Lorg/jetbrains/kotlin/gradle/plugin/KotlinSourceSet;)Lkotlinx/rpc/buf/tasks/BufTasks;
-	public abstract fun executedForSourceSet (Ljava/lang/String;)Lkotlinx/rpc/buf/tasks/BufTasks;
-	public abstract fun executedForSourceSet (Lorg/gradle/api/NamedDomainObjectProvider;)Lkotlinx/rpc/buf/tasks/BufTasks;
-	public abstract fun executedForSourceSet (Lorg/gradle/api/tasks/SourceSet;)Lkotlinx/rpc/buf/tasks/BufTasks;
-	public abstract fun matchingBuildType (Ljava/lang/String;)Lkotlinx/rpc/buf/tasks/BufTasks;
-	public abstract fun matchingFlavor (Ljava/lang/String;)Lkotlinx/rpc/buf/tasks/BufTasks;
-	public abstract fun matchingKotlinSourceSet (Lorg/gradle/api/NamedDomainObjectProvider;)Lkotlinx/rpc/buf/tasks/BufTasks;
-	public abstract fun matchingKotlinSourceSet (Lorg/jetbrains/kotlin/gradle/plugin/KotlinSourceSet;)Lkotlinx/rpc/buf/tasks/BufTasks;
-	public abstract fun matchingSourceSet (Ljava/lang/String;)Lkotlinx/rpc/buf/tasks/BufTasks;
-	public abstract fun matchingSourceSet (Lorg/gradle/api/NamedDomainObjectProvider;)Lkotlinx/rpc/buf/tasks/BufTasks;
-	public abstract fun matchingSourceSet (Lorg/gradle/api/tasks/SourceSet;)Lkotlinx/rpc/buf/tasks/BufTasks;
-	public abstract fun matchingVariant (Ljava/lang/String;)Lkotlinx/rpc/buf/tasks/BufTasks;
-	public abstract fun nonTestTasks ()Lkotlinx/rpc/buf/tasks/BufTasks;
-	public abstract fun testTasks ()Lkotlinx/rpc/buf/tasks/BufTasks;
-}
-
-public final class kotlinx/rpc/buf/tasks/BufTasksKt {
-	public static final fun bufDependsOn (Lkotlinx/rpc/buf/tasks/BufExecTask;Lkotlin/reflect/KClass;)Lkotlinx/rpc/buf/tasks/BufTasks;
-}
-
-public abstract class kotlinx/rpc/buf/tasks/GenerateBufGenYaml : org/gradle/api/DefaultTask {
+public abstract class kotlinx/rpc/buf/tasks/GenerateBufGenYaml : kotlinx/rpc/protoc/DefaultProtoTask {
 	public static final field NAME_PREFIX Ljava/lang/String;
 	public abstract fun getBufGenFile ()Lorg/gradle/api/provider/Property;
 }
 
-public abstract class kotlinx/rpc/buf/tasks/GenerateBufYaml : org/gradle/api/DefaultTask {
+public abstract class kotlinx/rpc/buf/tasks/GenerateBufYaml : kotlinx/rpc/protoc/DefaultProtoTask {
 	public static final field NAME_PREFIX Ljava/lang/String;
 	public abstract fun getBufFile ()Lorg/gradle/api/provider/Property;
 }
@@ -186,15 +149,29 @@ public final class kotlinx/rpc/protoc/ConstsKt {
 	public static final field PROTO_SOURCE_SET_EXTENSION_NAME Ljava/lang/String;
 }
 
+public abstract class kotlinx/rpc/protoc/DefaultProtoTask : org/gradle/api/DefaultTask, kotlinx/rpc/protoc/ProtoTask {
+	public fun <init> (Lkotlinx/rpc/protoc/ProtoTask$Properties;)V
+	public final fun getProperties ()Lkotlinx/rpc/protoc/ProtoTask$Properties;
+}
+
 public final class kotlinx/rpc/protoc/PluginJarsKt {
 	public static final fun getGrpcKotlinMultiplatformProtocPluginJarPath (Lorg/gradle/api/Project;)Lorg/gradle/api/provider/Provider;
 	public static final fun getKotlinMultiplatformProtocPluginJarPath (Lorg/gradle/api/Project;)Lorg/gradle/api/provider/Provider;
 }
 
-public abstract class kotlinx/rpc/protoc/ProcessProtoFiles : org/gradle/api/tasks/Copy {
+public abstract class kotlinx/rpc/protoc/ProcessProtoFiles : org/gradle/api/tasks/Sync, kotlinx/rpc/protoc/ProtoTask {
+	public fun getProperties ()Lkotlinx/rpc/protoc/ProtoTask$Properties;
 }
 
 public abstract interface class kotlinx/rpc/protoc/ProtoSourceSet : org/gradle/api/file/SourceDirectorySet {
+	public abstract fun extendsFrom (Lkotlinx/rpc/protoc/ProtoSourceSet;)V
+	public abstract fun getFileImports ()Lorg/gradle/api/file/ConfigurableFileCollection;
+	public abstract fun getImports ()Lorg/gradle/api/provider/SetProperty;
+	public abstract fun getPlugins ()Lorg/gradle/api/provider/SetProperty;
+	public abstract fun importsAllFrom (Lorg/gradle/api/provider/Provider;)V
+	public abstract fun importsFrom (Lkotlinx/rpc/protoc/ProtoSourceSet;)V
+	public abstract fun importsFrom (Lorg/gradle/api/NamedDomainObjectProvider;)V
+	public abstract fun importsFrom (Lorg/gradle/api/provider/Provider;)V
 	public abstract fun plugin (Lkotlinx/rpc/protoc/ProtocPlugin;Lorg/gradle/api/Action;)V
 	public abstract fun plugin (Lorg/gradle/api/Action;Lkotlin/jvm/functions/Function1;)V
 	public abstract fun plugin (Lorg/gradle/api/NamedDomainObjectProvider;Lorg/gradle/api/Action;)V
@@ -216,6 +193,49 @@ public final class kotlinx/rpc/protoc/ProtoSourceSetKt {
 	public static final fun proto_kotlin (Lorg/gradle/api/NamedDomainObjectProvider;Lorg/gradle/api/Action;)V
 }
 
+public abstract interface class kotlinx/rpc/protoc/ProtoTask : org/gradle/api/Task {
+	public abstract fun getProperties ()Lkotlinx/rpc/protoc/ProtoTask$Properties;
+}
+
+public final class kotlinx/rpc/protoc/ProtoTask$AndroidProperties : kotlinx/rpc/protoc/ProtoTask$Properties {
+	public fun <init> (ZLjava/util/Set;Ljava/util/List;Ljava/lang/String;Ljava/lang/String;ZZ)V
+	public final fun getBuildType ()Ljava/lang/String;
+	public final fun getFlavors ()Ljava/util/List;
+	public final fun getVariant ()Ljava/lang/String;
+	public final fun isInstrumentedTest ()Z
+	public final fun isUnitTest ()Z
+}
+
+public class kotlinx/rpc/protoc/ProtoTask$Properties {
+	public fun <init> (ZLjava/util/Set;)V
+	public final fun getSourceSetNames ()Ljava/util/Set;
+	public final fun isTest ()Z
+}
+
+public abstract interface class kotlinx/rpc/protoc/ProtoTasks : org/gradle/api/tasks/TaskCollection {
+	public abstract fun androidInstrumentedTestTasks ()Lkotlinx/rpc/protoc/ProtoTasks;
+	public abstract fun androidTasks (Lkotlin/jvm/functions/Function2;)Lkotlinx/rpc/protoc/ProtoTasks;
+	public static synthetic fun androidTasks$default (Lkotlinx/rpc/protoc/ProtoTasks;Lkotlin/jvm/functions/Function2;ILjava/lang/Object;)Lkotlinx/rpc/protoc/ProtoTasks;
+	public abstract fun androidUnitTestTasks ()Lkotlinx/rpc/protoc/ProtoTasks;
+	public abstract fun matchingAndroidBuildType (Ljava/lang/String;)Lkotlinx/rpc/protoc/ProtoTasks;
+	public abstract fun matchingAndroidFlavor (Ljava/lang/String;)Lkotlinx/rpc/protoc/ProtoTasks;
+	public abstract fun matchingAndroidVariant (Ljava/lang/String;)Lkotlinx/rpc/protoc/ProtoTasks;
+	public abstract fun matchingKotlinSourceSet (Lorg/gradle/api/NamedDomainObjectProvider;)Lkotlinx/rpc/protoc/ProtoTasks;
+	public abstract fun matchingKotlinSourceSet (Lorg/jetbrains/kotlin/gradle/plugin/KotlinSourceSet;)Lkotlinx/rpc/protoc/ProtoTasks;
+	public abstract fun matchingSourceSet (Ljava/lang/String;)Lkotlinx/rpc/protoc/ProtoTasks;
+	public abstract fun matchingSourceSet (Lorg/gradle/api/NamedDomainObjectProvider;)Lkotlinx/rpc/protoc/ProtoTasks;
+	public abstract fun matchingSourceSet (Lorg/gradle/api/tasks/SourceSet;)Lkotlinx/rpc/protoc/ProtoTasks;
+	public abstract fun matchingType (Lkotlin/reflect/KClass;)Lkotlinx/rpc/protoc/ProtoTasks;
+	public abstract fun nonTestTasks ()Lkotlinx/rpc/protoc/ProtoTasks;
+	public abstract fun testTasks ()Lkotlinx/rpc/protoc/ProtoTasks;
+}
+
+public final class kotlinx/rpc/protoc/ProtoTasksKt {
+	public static final fun getBuf (Lkotlinx/rpc/protoc/ProtoTasks;)Lkotlinx/rpc/protoc/ProtoTasks;
+	public static final fun getGenerate (Lkotlinx/rpc/protoc/ProtoTasks;)Lkotlinx/rpc/protoc/ProtoTasks;
+	public static final fun getProtoTasks (Lorg/gradle/api/Project;)Lkotlinx/rpc/protoc/ProtoTasks;
+}
+
 public abstract interface class kotlinx/rpc/protoc/ProtocExtension {
 	public abstract fun buf (Lorg/gradle/api/Action;)V
 	public abstract fun getBuf ()Lkotlinx/rpc/buf/BufExtension;
@@ -227,6 +247,7 @@ public class kotlinx/rpc/protoc/ProtocPlugin {
 	public static final field Companion Lkotlinx/rpc/protoc/ProtocPlugin$Companion;
 	public static final field GRPC_KOTLIN_MULTIPLATFORM Ljava/lang/String;
 	public static final field KOTLIN_MULTIPLATFORM Ljava/lang/String;
+	public fun equals (Ljava/lang/Object;)Z
 	public final fun getArtifact ()Lorg/gradle/api/provider/Property;
 	public final fun getExcludeTypes ()Lorg/gradle/api/provider/ListProperty;
 	public final fun getIncludeImports ()Lorg/gradle/api/provider/Property;
@@ -235,7 +256,9 @@ public class kotlinx/rpc/protoc/ProtocPlugin {
 	public final fun getOptions ()Lorg/gradle/api/provider/MapProperty;
 	public final fun getStrategy ()Lorg/gradle/api/provider/Property;
 	public final fun getTypes ()Lorg/gradle/api/provider/ListProperty;
+	public fun hashCode ()I
 	public final fun isJava ()Lorg/gradle/api/provider/Property;
+	public final fun isKotlin ()Lorg/gradle/api/provider/Property;
 	public final fun local (Lorg/gradle/api/Action;)V
 	public final fun remote (Lorg/gradle/api/Action;)V
 }

gradle-plugin/build.gradle.kts

@@ -4,6 +4,10 @@
 
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 import util.other.generateSource
+import kotlin.io.path.Path
+import kotlin.io.path.absolutePathString
+import kotlin.io.path.exists
+import kotlin.io.path.readLines
 
 plugins {
     `kotlin-dsl`
@@ -19,6 +23,8 @@ kotlin {
     explicitApi()
 
     jvmToolchain(17)
+
+    compilerOptions.optIn.add("kotlinx.rpc.internal.InternalRpcApi")
 }
 
 tasks.withType<KotlinCompile>().configureEach {
@@ -29,7 +35,9 @@ tasks.withType<KotlinCompile>().configureEach {
 }
 
 dependencies {
-    implementation(libs.kotlin.gradle.plugin)
+    compileOnly(libs.kotlin.gradle.plugin)
+    compileOnly(libs.android.gradle.plugin)
+    compileOnly(libs.android.gradle.plugin.api)
 
     testImplementation(libs.kotlin.gradle.plugin)
     testImplementation(gradleTestKit())
@@ -43,16 +51,19 @@ dependencies {
 }
 
 tasks.test {
-    val forwardOutput: Boolean = (properties.getOrDefault("gradle.test.forward.output", "false")
-         as String).toBooleanStrictOrNull() ?: false
+    useJUnitPlatform()
 
-    systemProperty("gradle.test.forward.output", forwardOutput)
+    val protocGen = gradle.includedBuild("protoc-gen")
+    dependsOn(protocGen.task(":grpc:publishAllPublicationsToBuildRepoRepository"))
+    dependsOn(protocGen.task(":protobuf:publishAllPublicationsToBuildRepoRepository"))
 
-    useJUnitPlatform()
+    val compilerPlugin = gradle.includedBuild("compiler-plugin")
+    dependsOn(compilerPlugin.task(":compiler-plugin-cli:publishAllPublicationsToBuildRepoRepository"))
+    dependsOn(compilerPlugin.task(":compiler-plugin-k2:publishAllPublicationsToBuildRepoRepository"))
+    dependsOn(compilerPlugin.task(":compiler-plugin-backend:publishAllPublicationsToBuildRepoRepository"))
+    dependsOn(compilerPlugin.task(":compiler-plugin-common:publishAllPublicationsToBuildRepoRepository"))
 
-    val includedBuild = gradle.includedBuild("protoc-gen")
-    dependsOn(includedBuild.task(":grpc:publishAllPublicationsToBuildRepoRepository"))
-    dependsOn(includedBuild.task(":protobuf:publishAllPublicationsToBuildRepoRepository"))
+    dependsOn(":publishAllPublicationsToBuildRepoRepository")
 }
 
 // This block is needed to show plugin tasks on --dry-run
@@ -98,14 +109,26 @@ generateSource(
 
 val globalRootDir: String by extra
 
+val androidHome = System.getenv("ANDROID_HOME")
+    ?: System.getProperty("ANDROID_SDK_HOME")
+    ?: Path(globalRootDir, "local.properties")
+        .takeIf { it.exists() }
+        ?.readLines()
+        ?.find { it.startsWith("sdk.dir=") }
+        ?.substringAfter("=")
+        ?.trim()
+    ?: error("ANDROID_HOME is not set")
+
 generateSource(
     name = "TestVersions",
     text = """
         package kotlinx.rpc
 
-        const val KOTLIN_VERSION: String = "${libs.versions.kotlin.lang.get()}"
+        const val RPC_VERSION: String = "${libs.versions.kotlinx.rpc.get()}"
+
+        const val ANDROID_HOME_DIR: String = "$androidHome"
 
-        const val BUILD_REPO: String = "${File(globalRootDir).resolve("build/repo").absolutePath}"
+        const val BUILD_REPO: String = "${Path(globalRootDir, "build", "repo").absolutePathString()}"
     """.trimIndent(),
     chooseSourceSet = { test }
 )

gradle-plugin/src/main/kotlin/kotlinx/rpc/Extensions.kt

@@ -83,14 +83,13 @@ public open class RpcExtension @Inject internal constructor(objects: ObjectFacto
     internal val protocApplied = AtomicBoolean(false)
 
     internal val protocInternal by lazy {
-        if (protocApplied.get()) {
+        if (protocApplied.compareAndSet(false, true)) {
+            objects.newInstance<DefaultProtocExtension>().apply {
+                callbacks.forEach { it.execute(this) }
+            }
+        } else {
             error("Illegal access to protoc extension during DefaultProtocExtension.init")
         }
-
-        protocApplied.set(true)
-        objects.newInstance<DefaultProtocExtension>().apply {
-            callbacks.forEach { it.execute(this) }
-        }
     }
 
     private val callbacks = mutableListOf<Action<ProtocExtension>>()

gradle-plugin/src/main/kotlin/kotlinx/rpc/RpcGradlePlugin.kt

@@ -6,13 +6,16 @@ package kotlinx.rpc
 
 import kotlinx.rpc.protoc.configurePluginProtections
 import kotlinx.rpc.protoc.createProtoExtensions
+import org.gradle.api.GradleException
 import org.gradle.api.Plugin
 import org.gradle.api.Project
 import org.gradle.kotlin.dsl.create
 
 @Suppress("unused")
 public class RpcGradlePlugin : Plugin<Project> {
     override fun apply(target: Project) {
+        checkKGPIsInTheClasspath()
+
         target.extensions.create<RpcExtension>("rpc")
 
         applyCompilerPlugin(target)
@@ -28,3 +31,22 @@ public class RpcGradlePlugin : Plugin<Project> {
         target.plugins.apply(CompilerPluginCli::class.java)
     }
 }
+
+private fun checkKGPIsInTheClasspath() {
+    try {
+        Class.forName("org.jetbrains.kotlin.gradle.plugin.KotlinCompilerPluginSupportPlugin")
+    } catch (_: ClassNotFoundException) {
+        throw GradleException(
+            """
+                Kotlin Gradle plugin is not applied to the project.
+                Please ensure that Kotlin Gradle plugin is applied to the project in the plugins block:
+
+                  plugins {
+                      kotlin("jvm") version "..." // or
+                      kotlin("multiplatform") version "..." // or
+                      kotlin("android") version "..."
+                  }
+            """.trimIndent()
+        )
+    }
+}