[gradle] Support new AGP with androidLibrary target (#5157)

Since AGP `8.8.0-alpha08` there was added support generated assets in
the new `androidLibrary` target.
We have to support a new target configuration and work with compose
multiplatform resources

Fixes https://youtrack.jetbrains.com/issue/CMP-6982

## Testing
- Added gradle tests

## Release Notes
### Features - Gradle Plugin
- Support compose resources in `androidLibrary` target

.github/workflows/gradle-plugin.yml

@@ -17,8 +17,8 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-20.04, macos-14, windows-2022]
-        gradle: [7.4, 8.8]
-        agp: [8.1.0, 8.5.0]
+        gradle: [7.4, 8.10.2]
+        agp: [8.1.0, 8.5.0, 8.8.0-alpha08]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3

gradle-plugins/build.gradle.kts

@@ -1,4 +1,5 @@
-import com.gradle.publish.PluginBundleExtension
+import org.jetbrains.kotlin.gradle.dsl.JvmTarget
+import org.jetbrains.kotlin.gradle.dsl.KotlinVersion
 import org.jetbrains.kotlin.gradle.tasks.KotlinJvmCompile
 
 plugins {
@@ -20,8 +21,8 @@ subprojects {
 
     plugins.withId("java") {
         configureIfExists<JavaPluginExtension> {
-            sourceCompatibility = JavaVersion.VERSION_1_8
-            targetCompatibility = JavaVersion.VERSION_1_8
+            sourceCompatibility = JavaVersion.VERSION_11
+            targetCompatibility = JavaVersion.VERSION_11
 
             withJavadocJar()
             withSourcesJar()
@@ -30,11 +31,13 @@ subprojects {
 
     plugins.withId("org.jetbrains.kotlin.jvm") {
         tasks.withType(KotlinJvmCompile::class).configureEach {
-            // must be set to a language version of the kotlin compiler & runtime,
-            // which is bundled to the oldest supported Gradle
-            kotlinOptions.languageVersion = "1.5"
-            kotlinOptions.apiVersion = "1.5"
-            kotlinOptions.jvmTarget = "1.8"
+            compilerOptions {
+                // must be set to a language version of the kotlin compiler & runtime,
+                // which is bundled to the oldest supported Gradle
+                languageVersion.set(KotlinVersion.KOTLIN_1_5)
+                apiVersion.set(KotlinVersion.KOTLIN_1_5)
+                jvmTarget.set(JvmTarget.JVM_11)
+            }
         }
     }
 

gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/resources/AndroidResources.kt

@@ -1,8 +1,10 @@
 package org.jetbrains.compose.resources
 
+import com.android.build.api.dsl.KotlinMultiplatformAndroidTarget
 import com.android.build.api.variant.AndroidComponentsExtension
-import com.android.build.api.variant.Component
 import com.android.build.api.variant.HasAndroidTest
+import com.android.build.api.variant.KotlinMultiplatformAndroidComponentsExtension
+import com.android.build.api.variant.Sources
 import com.android.build.gradle.internal.lint.AndroidLintAnalysisTask
 import com.android.build.gradle.internal.lint.LintModelWriterTask
 import org.gradle.api.DefaultTask
@@ -25,29 +27,122 @@ import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinAndroidTarget
 import java.io.File
 import javax.inject.Inject
 
-internal fun Project.configureAndroidComposeResources(moduleResourceDir: Provider<File>? = null) {
-    //copy all compose resources to android assets
-    val androidComponents = project.extensions.findByType(AndroidComponentsExtension::class.java) ?: return
+//copy all compose resources to android assets
+internal fun Project.configureAndroidComposeResources(
+    agpPluginId: String,
+    moduleResourceDir: Provider<File>? = null
+) {
+    val kotlinExtension = extensions.findByType(KotlinMultiplatformExtension::class.java) ?: return
+
+    if (agpPluginId != AGP_KMP_LIB_ID) {
+        extensions.findByType(AndroidComponentsExtension::class.java)?.let { androidComponents ->
+            configureAndroidComposeResources(kotlinExtension, androidComponents, moduleResourceDir)
+        }
+    } else {
+        @Suppress("UnstableApiUsage")
+        extensions.findByType(KotlinMultiplatformAndroidComponentsExtension::class.java)?.let { androidComponents ->
+            configureAndroidComposeResources(kotlinExtension, androidComponents, moduleResourceDir)
+        }
+    }
+}
+
+private fun Project.configureAndroidComposeResources(
+    kotlinExtension: KotlinMultiplatformExtension,
+    androidComponents: AndroidComponentsExtension<*, *, *>,
+    moduleResourceDir: Provider<File>?
+) {
+    logger.info("Configure compose resources with AndroidComponentsExtension")
     androidComponents.onVariants { variant ->
-        configureGeneratedAndroidComponentAssets(variant, moduleResourceDir)
+        val componentAssets = getAndroidComponentComposeResources(kotlinExtension, variant.name)
+        configureGeneratedAndroidComponentAssets(
+            variant.name,
+            variant.sources,
+            componentAssets,
+            moduleResourceDir
+        )
 
         if (variant is HasAndroidTest) {
             variant.androidTest?.let { androidTest ->
-                configureGeneratedAndroidComponentAssets(androidTest, moduleResourceDir)
+                val androidTestAssets = getAndroidComponentComposeResources(kotlinExtension, androidTest.name)
+                configureGeneratedAndroidComponentAssets(
+                    androidTest.name,
+                    androidTest.sources,
+                    androidTestAssets,
+                    moduleResourceDir
+                )
             }
         }
     }
 }
 
+private fun Project.getAndroidComponentComposeResources(
+    kotlinExtension: KotlinMultiplatformExtension,
+    componentName: String
+): FileCollection = project.files({
+    kotlinExtension.targets.withType(KotlinAndroidTarget::class.java).flatMap { androidTarget ->
+        androidTarget.compilations.flatMap { compilation ->
+            if (compilation.androidVariant.name == componentName) {
+                compilation.allKotlinSourceSets.map { kotlinSourceSet ->
+                    getPreparedComposeResourcesDir(kotlinSourceSet)
+                }
+            } else emptyList()
+        }
+    }
+})
+
+@Suppress("UnstableApiUsage")
+private fun Project.configureAndroidComposeResources(
+    kotlinExtension: KotlinMultiplatformExtension,
+    androidComponents: KotlinMultiplatformAndroidComponentsExtension,
+    moduleResourceDir: Provider<File>?
+) {
+    logger.info("Configure compose resources with KotlinMultiplatformAndroidComponentsExtension")
+    androidComponents.onVariant { variant ->
+        val variantAssets = getAndroidKmpComponentComposeResources(kotlinExtension, variant.name)
+        configureGeneratedAndroidComponentAssets(
+            variant.name,
+            variant.sources,
+            variantAssets,
+            moduleResourceDir
+        )
+
+        variant.androidTest?.let { androidTest ->
+            val androidTestAssets = getAndroidKmpComponentComposeResources(kotlinExtension, androidTest.name)
+            configureGeneratedAndroidComponentAssets(
+                androidTest.name,
+                androidTest.sources,
+                androidTestAssets,
+                moduleResourceDir
+            )
+        }
+    }
+}
+
+@Suppress("UnstableApiUsage")
+private fun Project.getAndroidKmpComponentComposeResources(
+    kotlinExtension: KotlinMultiplatformExtension,
+    componentName: String
+): FileCollection = project.files({
+    kotlinExtension.targets.withType(KotlinMultiplatformAndroidTarget::class.java).flatMap { androidTarget ->
+        androidTarget.compilations.flatMap { compilation ->
+            if (compilation.componentName == componentName) {
+                compilation.allKotlinSourceSets.map { kotlinSourceSet ->
+                    getPreparedComposeResourcesDir(kotlinSourceSet)
+                }
+            } else emptyList()
+        }
+    }
+})
+
 private fun Project.configureGeneratedAndroidComponentAssets(
-    component: Component,
+    componentName: String,
+    componentSources: Sources,
+    componentAssets: FileCollection,
     moduleResourceDir: Provider<File>?
 ) {
-    val kotlinExtension = project.extensions.findByType(KotlinMultiplatformExtension::class.java) ?: return
-    val camelComponentName = component.name.uppercaseFirstChar()
-    val componentAssets = getAndroidComponentComposeResources(kotlinExtension, component.name)
-    logger.info("Configure ${component.name} resources for 'android' target")
+    logger.info("Configure $componentName resources for 'android' target")
 
+    val camelComponentName = componentName.uppercaseFirstChar()
     val copyComponentAssets = registerTask<CopyResourcesToAndroidAssetsTask>(
         "copy${camelComponentName}ComposeResourcesToAndroidAssets"
     ) {
@@ -55,7 +150,7 @@ private fun Project.configureGeneratedAndroidComponentAssets(
         moduleResourceDir?.let { relativeResourcePlacement.set(it) }
     }
 
-    component.sources.assets?.addGeneratedSourceDirectory(
+    componentSources.assets?.addGeneratedSourceDirectory(
         copyComponentAssets,
         CopyResourcesToAndroidAssetsTask::outputDirectory
     )
@@ -71,21 +166,6 @@ private fun Project.configureGeneratedAndroidComponentAssets(
     }
 }
 
-private fun Project.getAndroidComponentComposeResources(
-    kotlinExtension: KotlinMultiplatformExtension,
-    componentName: String
-): FileCollection = project.files({
-    kotlinExtension.targets.withType(KotlinAndroidTarget::class.java).flatMap { androidTarget ->
-        androidTarget.compilations.flatMap { compilation ->
-            if (compilation.androidVariant.name == componentName) {
-                compilation.allKotlinSourceSets.map { kotlinSourceSet ->
-                    getPreparedComposeResourcesDir(kotlinSourceSet)
-                }
-            } else emptyList()
-        }
-    }
-})
-
 //Copy task doesn't work with 'variant.sources?.assets?.addGeneratedSourceDirectory' API
 internal abstract class CopyResourcesToAndroidAssetsTask : DefaultTask() {
     @get:Inject

gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/resources/ComposeResources.kt

@@ -15,10 +15,9 @@ internal const val COMPOSE_RESOURCES_DIR = "composeResources"
 internal const val RES_GEN_DIR = "generated/compose/resourceGenerator"
 internal const val KMP_RES_EXT = "multiplatformResourcesPublication"
 private const val MIN_GRADLE_VERSION_FOR_KMP_RESOURCES = "7.6"
-private val androidPluginIds = listOf(
-    "com.android.application",
-    "com.android.library"
-)
+private const val AGP_APP_ID = "com.android.application"
+private const val AGP_LIB_ID = "com.android.library"
+internal const val AGP_KMP_LIB_ID = "com.android.kotlin.multiplatform.library"
 
 internal fun Project.configureComposeResources(extension: ResourcesExtension) {
     val config = provider { extension }
@@ -64,10 +63,8 @@ internal fun Project.onKotlinJvmApplied(config: Provider<ResourcesExtension>) {
     configureJvmOnlyResources(kotlinExtension, config)
 }
 
-internal fun Project.onAgpApplied(block: () -> Unit) {
-    androidPluginIds.forEach { pluginId ->
-        plugins.withId(pluginId) {
-            block()
-        }
+internal fun Project.onAgpApplied(block: (pluginId: String) -> Unit) {
+    listOf(AGP_APP_ID, AGP_LIB_ID, AGP_KMP_LIB_ID).forEach { pluginId ->
+        plugins.withId(pluginId) { block(pluginId) }
     }
 }

gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/resources/MultimoduleResources.kt

@@ -37,8 +37,8 @@ internal fun Project.configureMultimoduleResources(
         .all { target -> configureTargetResources(target, moduleIsolationDirectory) }
 
     //configure ANDROID resources
-    onAgpApplied {
-        configureAndroidComposeResources(moduleIsolationDirectory)
+    onAgpApplied { agpId ->
+        configureAndroidComposeResources(agpId, moduleIsolationDirectory)
         fixAndroidLintTaskDependencies()
     }
 }

gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/resources/SinglemoduleResources.kt

@@ -27,8 +27,8 @@ internal fun Project.configureSinglemoduleResources(
         }
     }
 
-    onAgpApplied {
-        configureAndroidComposeResources()
+    onAgpApplied { agpId ->
+        configureAndroidComposeResources(agpId)
         fixAndroidLintTaskDependencies()
     }
 }

gradle-plugins/compose/src/test/kotlin/org/jetbrains/compose/test/tests/integration/GradlePluginTest.kt

@@ -11,6 +11,7 @@ import org.gradle.util.GradleVersion
 import org.jetbrains.compose.desktop.ui.tooling.preview.rpc.PreviewLogger
 import org.jetbrains.compose.desktop.ui.tooling.preview.rpc.RemoteConnection
 import org.jetbrains.compose.desktop.ui.tooling.preview.rpc.receiveConfigFromGradle
+import org.jetbrains.compose.internal.Version
 import org.jetbrains.compose.test.utils.GradlePluginTestBase
 import org.jetbrains.compose.test.utils.checkExists
 import org.jetbrains.compose.test.utils.checks
@@ -77,7 +78,8 @@ class GradlePluginTest : GradlePluginTestBase() {
 
     @Test
     fun newAndroidTarget() {
-        Assumptions.assumeTrue(defaultTestEnvironment.parsedGradleVersion >= GradleVersion.version("8.0.0"))
+        Assumptions.assumeTrue(defaultTestEnvironment.parsedGradleVersion >= GradleVersion.version("8.10.2"))
+        Assumptions.assumeTrue(Version.fromString(defaultTestEnvironment.agpVersion) >= Version.fromString("8.8.0-alpha08"))
         with(testProject("application/newAndroidTarget")) {
             gradle("build", "--dry-run").checks {
             }

gradle-plugins/compose/src/test/kotlin/org/jetbrains/compose/test/tests/integration/ResourcesTest.kt

@@ -2,6 +2,7 @@ package org.jetbrains.compose.test.tests.integration
 
 import org.gradle.util.GradleVersion
 import org.jetbrains.compose.desktop.application.internal.ComposeProperties
+import org.jetbrains.compose.internal.Version
 import org.jetbrains.compose.internal.utils.Arch
 import org.jetbrains.compose.internal.utils.OS
 import org.jetbrains.compose.internal.utils.currentArch
@@ -315,6 +316,27 @@ class ResourcesTest : GradlePluginTestBase() {
         }
     }
 
+    @Test
+    fun testNewAgpResources() {
+        Assumptions.assumeTrue(defaultTestEnvironment.parsedGradleVersion >= GradleVersion.version("8.10.2"))
+        Assumptions.assumeTrue(Version.fromString(defaultTestEnvironment.agpVersion) >= Version.fromString("8.8.0-alpha08"))
+
+        with(testProject("misc/newAgpResources", defaultTestEnvironment)) {
+            gradle(":appModule:assembleDebug").checks {
+                check.logContains("Configure compose resources with KotlinMultiplatformAndroidComponentsExtension")
+
+                val resourcesFiles = sequenceOf(
+                    "assets/composeResources/newagpresources.appmodule.generated.resources/values/strings.commonMain.cvr",
+                    "assets/composeResources/newagpresources.featuremodule.generated.resources/values/strings.commonMain.cvr"
+                )
+                val apk = file("appModule/build/outputs/apk/debug/appModule-debug.apk")
+
+                //isAndroid = false, because the new AGP has an issue with duplicate resources for now
+                checkResourcesZip(apk, resourcesFiles, false)
+            }
+        }
+    }
+
     @Test
     fun testDisableMultimoduleResourcesWithNewKotlin() {
         with(testProject("misc/kmpResourcePublication")) {

gradle-plugins/compose/src/test/test-projects/application/newAndroidTarget/settings.gradle

@@ -3,7 +3,7 @@ pluginManagement {
         id 'org.jetbrains.kotlin.multiplatform' version 'KOTLIN_VERSION_PLACEHOLDER'
         id 'org.jetbrains.kotlin.plugin.compose' version 'KOTLIN_VERSION_PLACEHOLDER'
         id 'org.jetbrains.compose' version 'COMPOSE_GRADLE_PLUGIN_VERSION_PLACEHOLDER'
-        id 'com.android.kotlin.multiplatform.library' version '8.2.0-alpha13'
+        id 'com.android.kotlin.multiplatform.library' version 'AGP_VERSION_PLACEHOLDER'
     }
     repositories {
         mavenLocal()

gradle-plugins/compose/src/test/test-projects/misc/newAgpResources/appModule/build.gradle.kts

@@ -0,0 +1,37 @@
+plugins {
+    id("org.jetbrains.compose")
+    kotlin("multiplatform")
+    kotlin("plugin.compose")
+    id("com.android.application")
+}
+
+kotlin {
+    jvmToolchain(11)
+    androidTarget()
+    jvm()
+
+    sourceSets {
+        commonMain.dependencies {
+            implementation(compose.runtime)
+            implementation(compose.material3)
+            implementation(compose.components.resources)
+            implementation(project(":featureModule"))
+        }
+
+        jvmMain.dependencies {
+            implementation(compose.desktop.currentOs)
+        }
+    }
+}
+
+android {
+    namespace = "me.sample.app"
+    compileSdk = 35
+    defaultConfig {
+        applicationId = "org.example.project"
+        minSdk = 24
+        targetSdk = 35
+        versionCode = 1
+        versionName = "1.0"
+    }
+}

gradle-plugins/compose/src/test/test-projects/misc/newAgpResources/appModule/src/androidMain/AndroidManifest.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest>
+    <application/>
+</manifest>

gradle-plugins/compose/src/test/test-projects/misc/newAgpResources/appModule/src/commonMain/composeResources/values/strings.xml

@@ -0,0 +1,3 @@
+<resources>
+    <string name="str_1">App text str_1</string>
+</resources>

gradle-plugins/compose/src/test/test-projects/misc/newAgpResources/appModule/src/commonMain/kotlin/me/sample/app/App.kt

@@ -0,0 +1,17 @@
+package me.sample.app
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import newagpresources.appmodule.generated.resources.*
+import org.jetbrains.compose.resources.stringResource
+
+@Composable
+fun App() {
+    Column {
+        val txt = "text: "
+        Text(txt + stringResource(Res.string.str_1))
+        MyFeatureText(txt = txt)
+    }
+}

gradle-plugins/compose/src/test/test-projects/misc/newAgpResources/build.gradle.kts

@@ -0,0 +1,7 @@
+plugins {
+    id("org.jetbrains.compose").apply(false)
+    kotlin("multiplatform").apply(false)
+    kotlin("plugin.compose").apply(false)
+    id("com.android.kotlin.multiplatform.library").apply(false)
+    id("com.android.application").apply(false)
+}

gradle-plugins/compose/src/test/test-projects/misc/newAgpResources/featureModule/build.gradle.kts

@@ -0,0 +1,26 @@
+plugins {
+    id("org.jetbrains.compose")
+    kotlin("multiplatform")
+    kotlin("plugin.compose")
+    id("com.android.kotlin.multiplatform.library")
+}
+
+kotlin {
+    jvmToolchain(11)
+    jvm()
+
+    androidLibrary {
+        experimentalProperties["android.experimental.kmp.enableAndroidResources"] = true
+        namespace = "me.sample.feature"
+        compileSdk = 35
+        minSdk = 24
+    }
+
+    sourceSets {
+        commonMain.dependencies {
+            implementation(compose.runtime)
+            implementation(compose.material3)
+            implementation(compose.components.resources)
+        }
+    }
+}

gradle-plugins/compose/src/test/test-projects/misc/newAgpResources/featureModule/src/commonMain/composeResources/values/strings.xml

@@ -0,0 +1,3 @@
+<resources>
+    <string name="str_1">Feature text str_1</string>
+</resources>

gradle-plugins/compose/src/test/test-projects/misc/newAgpResources/featureModule/src/commonMain/kotlin/me/sample/app/Feature.kt

@@ -0,0 +1,12 @@
+package me.sample.app
+
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import org.jetbrains.compose.resources.stringResource
+import newagpresources.featuremodule.generated.resources.*
+
+@Composable
+fun MyFeatureText(modifier: Modifier = Modifier, txt: String) {
+    Text(txt + stringResource(Res.string.str_1), modifier)
+}

gradle-plugins/compose/src/test/test-projects/misc/newAgpResources/gradle.properties

@@ -0,0 +1,3 @@
+org.gradle.jvmargs=-Xmx2048M -Dfile.encoding=UTF-8 -Dkotlin.daemon.jvm.options\="-Xmx2048M"
+kotlin.code.style=official
+android.useAndroidX=true

gradle-plugins/compose/src/test/test-projects/misc/newAgpResources/settings.gradle.kts

@@ -0,0 +1,29 @@
+rootProject.name = "newAgpResources"
+include(":featureModule")
+include(":appModule")
+pluginManagement {
+    repositories {
+        mavenLocal()
+        gradlePluginPortal()
+        mavenCentral()
+        google()
+        maven("https://maven.pkg.jetbrains.space/public/p/compose/dev")
+        maven("https://maven.pkg.jetbrains.space/kotlin/p/kotlin/dev/")
+    }
+    plugins {
+        id("org.jetbrains.kotlin.multiplatform").version("KOTLIN_VERSION_PLACEHOLDER")
+        id("org.jetbrains.kotlin.plugin.compose").version("KOTLIN_VERSION_PLACEHOLDER")
+        id("org.jetbrains.compose").version("COMPOSE_GRADLE_PLUGIN_VERSION_PLACEHOLDER")
+        id("com.android.kotlin.multiplatform.library").version("AGP_VERSION_PLACEHOLDER")
+        id("com.android.application").version("AGP_VERSION_PLACEHOLDER")
+    }
+}
+dependencyResolutionManagement {
+    repositories {
+        mavenCentral()
+        google()
+        maven("https://maven.pkg.jetbrains.space/public/p/compose/dev")
+        maven("https://maven.pkg.jetbrains.space/kotlin/p/kotlin/dev/")
+        mavenLocal()
+    }
+}

gradle-plugins/gradle.properties

@@ -15,8 +15,8 @@ compose.tests.kotlin.version=2.0.0
 # Don't forget to edit versions in .github/workflows/gradle-plugin.yml as well
 # and Publish.Subtasks.buildTypes.gradle.GradlePluginTestKt#gradleVersions in the TC config
 # minimal and current gradle version
-compose.tests.gradle.versions=7.4, 8.8
-compose.tests.agp.versions=8.1.0, 8.5.0
+compose.tests.gradle.versions=7.4, 8.10.2
+compose.tests.agp.versions=8.1.0, 8.5.0, 8.8.0-alpha08
 
 # A version of Gradle plugin, that will be published,
 # unless overridden by COMPOSE_GRADLE_PLUGIN_VERSION env var.

gradle-plugins/gradle/libs.versions.toml

@@ -2,7 +2,7 @@
 kotlin = "2.0.0"
 gradle-download-plugin = "5.5.0"
 kotlin-poet = "1.16.0"
-plugin-android = "7.3.0"
+plugin-android = "8.8.0-alpha08"
 shadow-jar = "8.1.1"
 publish-plugin = "1.2.1"