Test with Gradle 8-RC-1 (#2621)

* Test with Gradle 8-RC-1

* Fix Gradle tests for 8.0-rc-1

gradle-plugins/buildSrc/src/main/kotlin/osUtils.kt

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2020-2023 JetBrains s.r.o. and respective authors and developers.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE.txt file.
+ */
+
+enum class OS(val id: String) {
+    Linux("linux"),
+    Windows("windows"),
+    MacOS("macos")
+}
+
+val hostOS: OS by lazy {
+    val osName = System.getProperty("os.name")
+    when {
+        osName == "Mac OS X" -> OS.MacOS
+        osName == "Linux" -> OS.Linux
+        osName.startsWith("Win") -> OS.Windows
+        else -> throw Error("Unknown OS $osName")
+    }
+}

gradle-plugins/compose/build.gradle.kts

@@ -1,4 +1,5 @@
 import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
+import de.undercouch.gradle.tasks.download.Download
 
 plugins {
     kotlin("jvm")
@@ -7,6 +8,7 @@ plugins {
     id("java-gradle-plugin")
     id("maven-publish")
     id("com.github.johnrengelman.shadow") version "7.0.0"
+    id("de.undercouch.download") version "5.3.0"
 }
 
 gradlePluginConfig {
@@ -107,10 +109,46 @@ tasks.test {
     }
 }
 
+/**
+ * Gradle 8.0 removed auto downloading of requested toolchains unless a toolchain repository is configured.
+ * For now, the only option to enable auto downloading out-of-the-box is to use Foojay Disco resolver,
+ * which uses api.foojay.io service.
+ * It is not desirable to depend on little known service for provisioning JDK distributions, even for tests.
+ * Thus, the only option is to download the necessary JDK distributions ourselves.
+ */
+val jdkVersionsForTests = listOf(11, 15, 18, 19)
+val jdkForTestsRoot = project.rootProject.layout.buildDirectory.dir("jdks").get().asFile
+val downloadJdksForTests = tasks.register("downloadJdksForTests") {}
+for (jdkVersion in jdkVersionsForTests) {
+    val ext = if (hostOS == OS.Windows) ".zip" else ".tar.gz"
+    val archive = jdkForTestsRoot.resolve("$jdkVersion$ext")
+    val unpackDir = jdkForTestsRoot.resolve("$jdkVersion").apply { mkdirs() }
+    val downloadJdkTask = tasks.register("downloadJdk$jdkVersion", Download::class) {
+        src("https://corretto.aws/downloads/latest/amazon-corretto-$jdkVersion-x64-${hostOS.id}-jdk$ext")
+        dest(archive)
+        onlyIf { !dest.exists() }
+    }
+    val unpackJdkTask = tasks.register("unpackJdk$jdkVersion", Copy::class) {
+        dependsOn(downloadJdkTask)
+        val archive = archive
+        val archiveTree = when {
+            archive.name.endsWith(".tar.gz") -> tarTree(archive)
+            archive.name.endsWith(".zip") -> zipTree(archive)
+            else -> error("Unsupported archive format: ${archive.name}")
+        }
+        from(archiveTree)
+        into(unpackDir)
+        onlyIf { (unpackDir.listFiles()?.size ?: 0) == 0 }
+    }
+    downloadJdksForTests.dependsOn(unpackJdkTask)
+}
+
 for (gradleVersion in supportedGradleVersions) {
     tasks.registerVerificationTask<Test>("testGradle-${gradleVersion.version}") {
         classpath = tasks.test.get().classpath
 
+        dependsOn(downloadJdksForTests)
+        systemProperty("compose.tests.gradle.test.jdks.root", jdkForTestsRoot.absolutePath)
         if (gradleVersion >= GradleVersion.version("7.6")) {
             systemProperty("compose.tests.gradle.configuration.cache", "true")
         }

gradle-plugins/compose/src/test/kotlin/org/jetbrains/compose/test/utils/TestProject.kt

@@ -38,15 +38,24 @@ data class TestEnvironment(
     }
 }
 
+private val testJdks = TestProperties
+    .testJdksRoot?.let { listTestJdks(it) }.orEmpty()
+
 class TestProject(
     private val name: String,
     private val testEnvironment: TestEnvironment
 ) {
     private val testProjectsRootDir = File("src/test/test-projects")
-    private val additionalArgs = listOf(
+
+    private val additionalArgs = listOfNotNull(
         "--stacktrace",
         "--init-script", testProjectsRootDir.resolve("init.gradle").absolutePath,
-        "-P${ComposeProperties.VERBOSE}=${testEnvironment.composeVerbose}"
+        "-P${ComposeProperties.VERBOSE}=${testEnvironment.composeVerbose}",
+        if (GradleVersion.version(TestProperties.gradleVersionForTests).baseVersion < GradleVersion.version("8.0")) {
+            null
+        } else {
+            "-Porg.gradle.java.installations.paths=${testJdks.joinToString(",")}"
+        }
     )
 
     init {
@@ -68,7 +77,7 @@ class TestProject(
 
     internal fun gradle(vararg args: String): BuildResult {
         if (TestProperties.gradleConfigurationCache) {
-            if (GradleVersion.version(TestProperties.gradleVersionForTests) < GradleVersion.version("8.0-rc-1")) {
+            if (GradleVersion.version(TestProperties.gradleVersionForTests).baseVersion < GradleVersion.version("8.0")) {
                 // Gradle 7.* does not use the configuration cache in the same build.
                 // In other words, if cache misses, Gradle performs configuration,
                 // but does not, use the serialized task graph.

gradle-plugins/compose/src/test/kotlin/org/jetbrains/compose/test/utils/TestProperties.kt

@@ -29,6 +29,8 @@ object TestProperties {
     val summaryFile: File?
         get() = System.getProperty("compose.tests.summary.file")?.let { File(it) }
 
+    val testJdksRoot: File?
+        get() = System.getProperty("compose.tests.gradle.test.jdks.root")?.let { File(it) }
 
     private fun notNullSystemProperty(property: String): String =
         System.getProperty(property) ?: error("The '$property' system property is not set")

gradle-plugins/compose/src/test/kotlin/org/jetbrains/compose/test/utils/jdkUtls.kt

@@ -6,6 +6,7 @@
 package org.jetbrains.compose.test.utils
 
 import java.io.File
+import kotlin.io.path.isExecutable
 
 const val JDK_11_BYTECODE_VERSION = 55
 
@@ -22,10 +23,38 @@ fun readClassFileVersion(classFile: File): Int {
     return match.groupValues[1].toInt()
 }
 
-fun runJavaTool(toolName: String, vararg args: String): ProcessRunResult {
+internal fun javaToolExecutableName(name: String): String =
+    if (isWindows) "$name.exe" else name
+
+internal fun runJavaTool(toolName: String, vararg args: String): ProcessRunResult {
     val javaHome = File(System.getProperty("java.home"))
-    val toolExecutableName = if (isWindows) "$toolName.exe" else toolName
-    val executable = javaHome.resolve("bin/$toolExecutableName")
+    val executable = javaHome.resolve("bin/${javaToolExecutableName(toolName)}")
     check(executable.isFile) { "Could not find tool '$toolName' at specified path: $executable" }
     return runProcess(executable, args.toList())
+}
+
+/**
+ * Expects the following structure:
+ * [rootDir]
+ * -- JDK_VERSION_1
+ *    -- UNPACKED_JDK_1_DISTRIBUTION_ARCHIVE
+ * -- JDK_VERSION_2
+ *    -- UNPACKED_JDK_2_DISTRIBUTION_ARCHIVE
+ *
+ * where JDK_VERSION_* is an integer corresponding to the major version of JDK distribution
+ */
+internal fun listTestJdks(rootDir: File): List<String> {
+    if (!rootDir.isDirectory) return emptyList()
+
+    return rootDir.listFiles()!!
+        .filter { it.isDirectory }
+        .map { findJavaHome(it).absolutePath }
+}
+
+private fun findJavaHome(dir: File): File {
+    val javaExecutableName = javaToolExecutableName("java")
+    val javaExecutable = dir.walk()
+        .firstOrNull { it.isFile && it.name == javaExecutableName && it.toPath().isExecutable() }
+        ?: error("Could not find executable '$javaExecutableName' in '$dir' directory")
+    return javaExecutable.parentFile.parentFile.absoluteFile
 }

gradle-plugins/compose/src/test/test-projects/application/mpp/build.gradle

@@ -16,9 +16,9 @@ kotlin {
     // like https://github.com/JetBrains/compose-jb/issues/2345
     android()
 
-    jvm("desktop")
+    jvm()
     sourceSets {
-        desktopMain {
+        jvmMain {
             dependsOn(commonMain)
 
             dependencies {

gradle-plugins/gradle.properties

@@ -10,7 +10,7 @@ compose.tests.compiler.compatible.kotlin.version=1.7.20
 # The latest version of Kotlin compatible with compose.tests.compiler.version for JS target. Used only on CI.
 compose.tests.js.compiler.compatible.kotlin.version=1.7.20
 # __SUPPORTED_GRADLE_VERSIONS__
-compose.tests.gradle.versions=7.0.2, 7.6
+compose.tests.gradle.versions=7.0.2, 8.0-rc-1
 
 # A version of Gradle plugin, that will be published,
 # unless overridden by COMPOSE_GRADLE_PLUGIN_VERSION env var.