Migrate tests to stutter; bring compat down to 4.4.1

app/build.gradle.kts

@@ -40,7 +40,7 @@ application {
 }
 
 tasks {
-    named<CreateStartScripts>("startScripts") {
+    startScripts {
         doLast {
             unixScript.writeText(unixScript.readText().replace("@APP_HOME@", "\$APP_HOME"))
             windowsScript.writeText(windowsScript.readText().replace("@APP_HOME@", "%APP_HOME%"))

plugin/.stutter/java11.lock

@@ -0,0 +1,7 @@
+# DO NOT MODIFY: Generated by Stutter plugin.
+5.0
+5.1.1
+5.2.1
+5.3.1
+5.4.1
+5.5-rc-1

plugin/.stutter/java8.lock

@@ -1,4 +1,5 @@
 # DO NOT MODIFY: Generated by Stutter plugin.
+4.4.1
 4.5.1
 4.6
 4.7
@@ -10,3 +11,4 @@
 5.2.1
 5.3.1
 5.4.1
+5.5-rc-1

plugin/build.gradle.kts

@@ -25,8 +25,15 @@ dependencyLocking {
     lockAllConfigurations()
 }
 
+configurations {
+    compile {
+        dependencies.remove(project.dependencies.gradleApi())
+    }
+}
+
 dependencies {
     implementation(project(":model"))
+    shadow(gradleApi())
     compileOnly("org.gradle:gradle-tooling-api:${gradle.gradleVersion}")
     implementation("org.apache.maven:maven-model:latest.release")
     implementation("org.apache.maven:maven-model-builder:latest.release")
@@ -56,7 +63,7 @@ kotlinDslPluginOptions {
 
 stutter {
     java(8) {
-        compatibleRange("4.5")
+        compatibleRange("4.4")
     }
     java(11) {
         compatibleRange("5.0")
@@ -64,26 +71,11 @@ stutter {
 }
 
 tasks {
+    pluginUnderTestMetadata {
+        pluginClasspath.setFrom(files(shadowJar))
+    }
+
     withType<Test> {
         useJUnitPlatform()
     }
-
-//    gradleTestGenerator {
-//        dependsOn(shadowJar)
-//        doLast {
-//            file(gradleTest.get().initScript).bufferedWriter().use { out ->
-//                out.append("""
-//                    initscript {
-//                        dependencies {
-//                            classpath fileTree('file:${buildDir.absolutePath}/libs'.toURI()) {
-//                                include '*.jar'
-//                            }
-//                        }
-//                    }
-//
-//                    apply plugin: org.nixos.gradle2nix.Gradle2NixPlugin
-//                """.trimIndent())
-//            }
-//        }
-//    }
 }

plugin/src/compatTest/kotlin/org/nixos/gradle2nix/BasicTest.kt

@@ -1,9 +1,5 @@
 package org.nixos.gradle2nix
 
-import org.gradle.internal.classpath.DefaultClassPath
-import org.gradle.testkit.runner.internal.PluginUnderTestMetadataReading
-import org.gradle.tooling.GradleConnector
-import org.gradle.tooling.internal.consumer.DefaultModelBuilder
 import org.junit.jupiter.api.Test
 import org.junit.jupiter.api.io.TempDir
 import java.io.File
@@ -11,32 +7,11 @@ import kotlin.test.assertEquals
 
 
 class BasicTest {
-    companion object {
-        @JvmStatic @TempDir lateinit var projectDir: File
-
-        val initScript: File by lazy {
-            projectDir.resolve("init.gradle").also {
-                it.writer().use { out ->
-//                    val classpath = DefaultClassPath.of(PluginUnderTestMetadataReading.readImplementationClasspath())
-//                        .asFiles.joinToString(prefix = "'", postfix = "'")
-//                    out.appendln("""
-//                        initscript {
-//                            dependencies {
-//                                classpath files($classpath)
-//                            }
-//                        }
-//
-//                        apply plugin: org.nixos.gradle2nix.Gradle2NixPlugin
-//                    """.trimIndent())
-                    out.appendln("apply plugin: org.nixos.gradle2nix.Gradle2NixPlugin")
-                }
-            }
-        }
-    }
+    @TempDir lateinit var projectDir: File
 
     @Test
     fun `builds basic project with kotlin dsl`() {
-        projectDir.resolve("build.gradle.kts").writeText("""
+        val model = projectDir.buildKotlin("""
             plugins {
                 java
             }
@@ -51,20 +26,48 @@ class BasicTest {
             }
         """.trimIndent())
 
-        val connection = GradleConnector.newConnector()
-            .useGradleVersion(System.getProperty("compat.gradle.version"))
-            .forProjectDirectory(projectDir)
-            .connect()
+        assertEquals(model.gradle.version, System.getProperty("compat.gradle.version"))
 
-        val model = (connection.model(Build::class.java) as DefaultModelBuilder<Build>)
-            .withArguments(
-                "--init-script=$initScript",
-                "--stacktrace"
+        with(model.rootProject.projectDependencies) {
+            with(repositories) {
+                assertEquals(1, maven.size)
+                assertEquals(maven[0].urls[0], "https://jcenter.bintray.com/")
+            }
+
+            assertArtifacts(
+                pom("com.squareup.moshi:moshi-parent:1.8.0"),
+                jar("com.squareup.moshi:moshi:1.8.0"),
+                pom("com.squareup.moshi:moshi:1.8.0"),
+                jar("com.squareup.okio:okio:2.2.2"),
+                pom("com.squareup.okio:okio:2.2.2"),
+                jar("org.jetbrains.kotlin:kotlin-stdlib-common:1.2.60"),
+                pom("org.jetbrains.kotlin:kotlin-stdlib-common:1.2.60"),
+                jar("org.jetbrains.kotlin:kotlin-stdlib:1.2.60"),
+                pom("org.jetbrains.kotlin:kotlin-stdlib:1.2.60"),
+                jar("org.jetbrains:annotations:13.0"),
+                pom("org.jetbrains:annotations:13.0"),
+                pom("org.sonatype.oss:oss-parent:7"),
+                actual = artifacts
             )
-            .withInjectedClassPath(DefaultClassPath.of(PluginUnderTestMetadataReading.readImplementationClasspath()))
-            .setStandardOutput(System.out)
-            .setStandardError(System.out)
-            .get()
+        }
+    }
+
+    @Test
+    fun `builds basic project with groovy dsl`() {
+        val model = projectDir.buildGroovy("""
+            plugins {
+                id("java")
+            }
+
+            repositories {
+                jcenter()
+            }
+
+            dependencies {
+                implementation 'com.squareup.okio:okio:2.2.2'
+                implementation 'com.squareup.moshi:moshi:1.8.0'
+            }
+        """.trimIndent())
 
         assertEquals(model.gradle.version, System.getProperty("compat.gradle.version"))
 
@@ -73,6 +76,22 @@ class BasicTest {
                 assertEquals(1, maven.size)
                 assertEquals(maven[0].urls[0], "https://jcenter.bintray.com/")
             }
+
+            assertArtifacts(
+                pom("com.squareup.moshi:moshi-parent:1.8.0"),
+                jar("com.squareup.moshi:moshi:1.8.0"),
+                pom("com.squareup.moshi:moshi:1.8.0"),
+                jar("com.squareup.okio:okio:2.2.2"),
+                pom("com.squareup.okio:okio:2.2.2"),
+                jar("org.jetbrains.kotlin:kotlin-stdlib-common:1.2.60"),
+                pom("org.jetbrains.kotlin:kotlin-stdlib-common:1.2.60"),
+                jar("org.jetbrains.kotlin:kotlin-stdlib:1.2.60"),
+                pom("org.jetbrains.kotlin:kotlin-stdlib:1.2.60"),
+                jar("org.jetbrains:annotations:13.0"),
+                pom("org.jetbrains:annotations:13.0"),
+                pom("org.sonatype.oss:oss-parent:7"),
+                actual = artifacts
+            )
         }
     }
 }

plugin/src/compatTest/kotlin/org/nixos/gradle2nix/SubprojectsTest.kt

@@ -0,0 +1,226 @@
+package org.nixos.gradle2nix
+
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.io.TempDir
+import java.io.File
+import kotlin.test.assertEquals
+
+class SubprojectsTest {
+    @TempDir
+    lateinit var root: File
+
+    @Test
+    fun `builds multi-module project with kotlin dsl`() {
+        root.resolve("child-a").also { it.mkdirs() }
+            .resolve("build.gradle.kts").writeText("""
+                plugins {
+                    java
+                }
+
+                dependencies {
+                    implementation("com.squareup.okio:okio:2.2.2")
+                }
+            """.trimIndent())
+
+        root.resolve("child-b").also { it.mkdirs() }
+            .resolve("build.gradle.kts").writeText("""
+                plugins {
+                    java
+                }
+
+                dependencies {
+                    implementation("com.squareup.moshi:moshi:1.8.0")
+                }
+            """.trimIndent())
+
+        root.resolve("settings.gradle.kts").writeText("""
+            include(":child-a", ":child-b")
+        """.trimIndent())
+
+        val model = root.buildKotlin("""
+            plugins {
+                java
+            }
+
+            allprojects {
+                repositories {
+                    jcenter()
+                }
+            }
+
+            dependencies {
+                testImplementation("junit:junit:4.12")
+            }
+        """.trimIndent())
+
+        with(model.rootProject) {
+            with(projectDependencies) {
+                assertEquals(listOf(DefaultMaven(urls = listOf("https://jcenter.bintray.com/"))),
+                    repositories.maven)
+
+                assertArtifacts(
+                    jar("junit:junit:4.12"),
+                    pom("junit:junit:4.12"),
+                    jar("org.hamcrest:hamcrest-core:1.3"),
+                    pom("org.hamcrest:hamcrest-core:1.3"),
+                    pom("org.hamcrest:hamcrest-parent:1.3"),
+                    actual = artifacts)
+            }
+
+            assertEquals(2, children.size)
+
+            with(children[0]) {
+                assertEquals("child-a", name)
+                assertEquals(root.resolve("child-a").toRelativeString(root), projectDir)
+
+                with(projectDependencies) {
+                    assertEquals(
+                        listOf(DefaultMaven(urls = listOf("https://jcenter.bintray.com/"))),
+                        repositories.maven
+                    )
+
+                    assertArtifacts(
+                        jar("com.squareup.okio:okio:2.2.2"),
+                        pom("com.squareup.okio:okio:2.2.2"),
+                        jar("org.jetbrains.kotlin:kotlin-stdlib-common:1.2.60"),
+                        pom("org.jetbrains.kotlin:kotlin-stdlib-common:1.2.60"),
+                        jar("org.jetbrains.kotlin:kotlin-stdlib:1.2.60"),
+                        pom("org.jetbrains.kotlin:kotlin-stdlib:1.2.60"),
+                        jar("org.jetbrains:annotations:13.0"),
+                        pom("org.jetbrains:annotations:13.0"),
+                        actual = artifacts
+                    )
+                }
+            }
+
+            with(children[1]) {
+                assertEquals("child-b", name)
+                assertEquals(root.resolve("child-b").toRelativeString(root), projectDir)
+
+                with(projectDependencies) {
+                    assertEquals(
+                        listOf(DefaultMaven(urls = listOf("https://jcenter.bintray.com/"))),
+                        repositories.maven
+                    )
+
+                    assertArtifacts(
+                        pom("com.squareup.moshi:moshi-parent:1.8.0"),
+                        jar("com.squareup.moshi:moshi:1.8.0"),
+                        pom("com.squareup.moshi:moshi:1.8.0"),
+                        pom("com.squareup.okio:okio-parent:1.16.0"),
+                        jar("com.squareup.okio:okio:1.16.0"),
+                        pom("com.squareup.okio:okio:1.16.0"),
+                        pom("org.sonatype.oss:oss-parent:7"),
+                        actual = artifacts
+                    )
+                }
+            }
+        }
+    }
+
+    @Test
+    fun `builds multi-module project with groovy dsl`() {
+        root.resolve("child-a").also { it.mkdirs() }
+            .resolve("build.gradle").writeText("""
+                plugins {
+                    id 'java'
+                }
+
+                dependencies {
+                    implementation 'com.squareup.okio:okio:2.2.2'
+                }
+            """.trimIndent())
+
+        root.resolve("child-b").also { it.mkdirs() }
+            .resolve("build.gradle").writeText("""
+                plugins {
+                    id 'java'
+                }
+
+                dependencies {
+                    implementation 'com.squareup.moshi:moshi:1.8.0'
+                }
+            """.trimIndent())
+
+        root.resolve("settings.gradle").writeText("""
+            include ':child-a', ':child-b'
+        """.trimIndent())
+
+        val model = root.buildGroovy("""
+            plugins {
+                id 'java'
+            }
+
+            allprojects {
+                repositories {
+                    jcenter()
+                }
+            }
+
+            dependencies {
+                testImplementation 'junit:junit:4.12'
+            }
+        """.trimIndent())
+
+        with(model.rootProject) {
+            with(projectDependencies) {
+                assertEquals(listOf(DefaultMaven(urls = listOf("https://jcenter.bintray.com/"))),
+                    repositories.maven)
+
+                assertArtifacts(
+                    jar("junit:junit:4.12"),
+                    pom("junit:junit:4.12"),
+                    jar("org.hamcrest:hamcrest-core:1.3"),
+                    pom("org.hamcrest:hamcrest-core:1.3"),
+                    pom("org.hamcrest:hamcrest-parent:1.3"),
+                    actual = artifacts)
+            }
+
+            assertEquals(2, children.size)
+
+            with(children[0]) {
+                assertEquals("child-a", name)
+                assertEquals(root.resolve("child-a").toRelativeString(root), projectDir)
+
+                with(projectDependencies) {
+                    assertEquals(
+                        listOf(DefaultMaven(urls = listOf("https://jcenter.bintray.com/"))),
+                        repositories.maven
+                    )
+
+                    assertArtifacts(
+                        jar("com.squareup.okio:okio:2.2.2"),
+                        pom("com.squareup.okio:okio:2.2.2"),
+                        jar("org.jetbrains.kotlin:kotlin-stdlib-common:1.2.60"),
+                        pom("org.jetbrains.kotlin:kotlin-stdlib-common:1.2.60"),
+                        jar("org.jetbrains.kotlin:kotlin-stdlib:1.2.60"),
+                        pom("org.jetbrains.kotlin:kotlin-stdlib:1.2.60"),
+                        jar("org.jetbrains:annotations:13.0"),
+                        pom("org.jetbrains:annotations:13.0"),
+                        actual = artifacts
+                    )
+                }
+            }
+
+            with(children[1]) {
+                assertEquals("child-b", name)
+                assertEquals(root.resolve("child-b").toRelativeString(root), projectDir)
+
+                with(projectDependencies) {
+                    assertEquals(listOf(DefaultMaven(urls = listOf("https://jcenter.bintray.com/"))),
+                        repositories.maven)
+
+                    assertArtifacts(
+                        pom("com.squareup.moshi:moshi-parent:1.8.0"),
+                        jar("com.squareup.moshi:moshi:1.8.0"),
+                        pom("com.squareup.moshi:moshi:1.8.0"),
+                        pom("com.squareup.okio:okio-parent:1.16.0"),
+                        jar("com.squareup.okio:okio:1.16.0"),
+                        pom("com.squareup.okio:okio:1.16.0"),
+                        pom("org.sonatype.oss:oss-parent:7"),
+                        actual = artifacts)
+                }
+            }
+        }
+    }
+}

plugin/src/compatTest/kotlin/org/nixos/gradle2nix/TestUtil.kt

@@ -0,0 +1,105 @@
+package org.nixos.gradle2nix
+
+import org.gradle.api.internal.artifacts.dsl.ParsedModuleStringNotation
+import org.gradle.internal.classpath.DefaultClassPath
+import org.gradle.testkit.runner.internal.PluginUnderTestMetadataReading
+import org.gradle.tooling.GradleConnector
+import java.io.File
+import kotlin.test.assertTrue
+
+private fun File.initscript() = resolve("init.gradle").also {
+    it.writer().use { out ->
+        val classpath = DefaultClassPath.of(PluginUnderTestMetadataReading.readImplementationClasspath())
+            .asFiles.joinToString(prefix = "'", postfix = "'")
+        out.appendln("""
+                        initscript {
+                            dependencies {
+                                classpath files($classpath)
+                            }
+                        }
+
+                        apply plugin: org.nixos.gradle2nix.Gradle2NixPlugin
+                    """.trimIndent())
+     }
+}
+
+fun File.buildGroovy(script: String): DefaultBuild {
+    resolve("build.gradle").writeText(script)
+    return build()
+}
+
+fun File.buildKotlin(script: String): DefaultBuild {
+    resolve("build.gradle.kts").writeText(script)
+    return build()
+}
+
+private fun File.build(): DefaultBuild {
+    return GradleConnector.newConnector()
+        .useGradleVersion(System.getProperty("compat.gradle.version"))
+        .forProjectDirectory(this)
+        .connect()
+        .model(Build::class.java)
+        .withArguments(
+            "--init-script=${initscript()}",
+            "--stacktrace"
+        )
+        .setStandardOutput(System.out)
+        .setStandardError(System.out)
+        .get()
+        .let { DefaultBuild(it) }
+}
+
+fun jar(notation: String, sha256: String = ""): DefaultArtifact =
+        artifact(notation, sha256, "jar")
+
+fun pom(notation: String, sha256: String = ""): DefaultArtifact =
+        artifact(notation, sha256, "pom")
+
+private fun artifact(notation: String, sha256: String, type: String): DefaultArtifact {
+    val parsed = ParsedModuleStringNotation(notation, type)
+    return DefaultArtifact(
+        groupId = parsed.group ?: "",
+        artifactId = parsed.name ?: "",
+        version = parsed.version ?: "",
+        classifier = parsed.classifier ?: "",
+        extension = type,
+        sha256 = sha256
+    )
+}
+
+private fun artifactEquals(expected: DefaultArtifact, actual: DefaultArtifact): Boolean {
+    return with (expected) {
+        groupId == actual.groupId &&
+                artifactId == actual.artifactId &&
+                version == actual.version &&
+                classifier == actual.classifier &&
+                extension == actual.extension &&
+                (sha256.takeIf { it.isNotEmpty() }?.equals(actual.sha256) ?: true)
+    }
+}
+
+fun assertArtifacts(vararg expected: DefaultArtifact, actual: List<DefaultArtifact>) {
+    val mismatches = mutableListOf<Mismatch>()
+    val remaining = mutableListOf<DefaultArtifact>().also { it.addAll(actual) }
+    expected.forEachIndexed { i: Int, exp: DefaultArtifact ->
+        val act = actual[i]
+        if (!artifactEquals(exp, act)) {
+            mismatches += Mismatch(i, exp, act)
+        } else {
+            remaining -= act
+        }
+    }
+    assertTrue(mismatches.isEmpty() && remaining.isEmpty(), """
+        Artifact mismatches:
+        ${mismatches.joinToString("\n            ", prefix = "            ")}
+
+        Missing artifacts:
+        ${remaining.joinToString("\n            ", prefix = "            ")}
+    """)
+}
+
+data class Mismatch(
+    val index: Int,
+    val expected: DefaultArtifact,
+    val actual: DefaultArtifact
+)

plugin/src/main/kotlin/org/nixos/gradle2nix/Gradle2NixPlugin.kt

@@ -4,14 +4,15 @@ import org.gradle.api.Plugin
 import org.gradle.api.Project
 import org.gradle.api.artifacts.dsl.RepositoryHandler
 import org.gradle.api.artifacts.repositories.MavenArtifactRepository
+import org.gradle.api.internal.GradleInternal
 import org.gradle.api.invocation.Gradle
 import org.gradle.api.tasks.wrapper.Wrapper
-import org.gradle.kotlin.dsl.named
-import org.gradle.kotlin.dsl.newInstance
+import org.gradle.kotlin.dsl.getByName
 import org.gradle.kotlin.dsl.support.serviceOf
 import org.gradle.plugin.management.PluginRequest
 import org.gradle.tooling.provider.model.ToolingModelBuilder
 import org.gradle.tooling.provider.model.ToolingModelBuilderRegistry
+import org.gradle.util.GradleVersion
 import java.net.URL
 import java.util.*
 import org.nixos.gradle2nix.Gradle as NixGradle
@@ -64,12 +65,12 @@ private class NixToolingModelBuilder(
 }
 
 private fun Project.buildGradle(): DefaultGradle =
-    with(tasks.named<Wrapper>("wrapper").get()) {
+    with(tasks.getByName<Wrapper>("wrapper")) {
         DefaultGradle(
             version = gradleVersion,
             type = distributionType.name.toLowerCase(Locale.US),
             url = distributionUrl,
-            sha256 = distributionSha256Sum ?: fetchDistSha256(distributionUrl),
+            sha256 = sha256,
             nativeVersion = gradle.gradleHomeDir?.resolve("lib")?.listFiles()
                 ?.firstOrNull { f -> nativePlatformJarRegex matches f.name }?.let { nf ->
                     nativePlatformJarRegex.find(nf.name)?.groupValues?.get(1)
@@ -85,7 +86,7 @@ private fun Project.buildGradle(): DefaultGradle =
     }
 
 private fun Project.buildPlugins(pluginRequests: List<PluginRequest>): DefaultDependencies =
-    with(objects.newInstance<PluginResolver>(pluginRequests)) {
+    with(PluginResolver(gradle as GradleInternal, pluginRequests)) {
         DefaultDependencies(repositories.repositories(), artifacts())
     }
 
@@ -151,3 +152,12 @@ internal fun RepositoryHandler.repositories() = DefaultRepositories(
             DefaultMaven(listOf(repo.url.toString()) + repo.artifactUrls.map { it.toString() })
         }
 )
+
+private val Wrapper.sha256: String
+    get() {
+        return if (GradleVersion.current() < GradleVersion.version("4.5")) {
+            fetchDistSha256(distributionUrl)
+        } else {
+            distributionSha256Sum ?: fetchDistSha256(distributionUrl)
+        }
+    }

plugin/src/main/kotlin/org/nixos/gradle2nix/PluginResolver.kt

@@ -1,8 +1,10 @@
 package org.nixos.gradle2nix
 
 import org.gradle.api.artifacts.ExternalModuleDependency
+import org.gradle.api.internal.GradleInternal
 import org.gradle.api.internal.artifacts.ivyservice.ivyresolve.strategy.VersionSelectorScheme
 import org.gradle.api.internal.plugins.PluginImplementation
+import org.gradle.kotlin.dsl.support.serviceOf
 import org.gradle.plugin.management.PluginRequest
 import org.gradle.plugin.management.internal.PluginRequestInternal
 import org.gradle.plugin.use.PluginId
@@ -11,22 +13,21 @@ import org.gradle.plugin.use.resolve.internal.ArtifactRepositoriesPluginResolver
 import org.gradle.plugin.use.resolve.internal.PluginResolution
 import org.gradle.plugin.use.resolve.internal.PluginResolutionResult
 import org.gradle.plugin.use.resolve.internal.PluginResolveContext
-import javax.inject.Inject
 
-open class PluginResolver @Inject constructor(
-    private val pluginDependencyResolutionServices: PluginDependencyResolutionServices,
-    versionSelectorScheme: VersionSelectorScheme,
+internal class PluginResolver(
+    gradle: GradleInternal,
     private val pluginRequests: Collection<PluginRequest>
 ) {
-    val repositories by lazy {
-        pluginDependencyResolutionServices.resolveRepositoryHandler
-    }
+    private val pluginDependencyResolutionServices = gradle.serviceOf<PluginDependencyResolutionServices>()
+    private val versionSelectorScheme = gradle.serviceOf<VersionSelectorScheme>()
 
     private val artifactRepositoriesPluginResolver = ArtifactRepositoriesPluginResolver(
         pluginDependencyResolutionServices,
         versionSelectorScheme
     )
 
+    val repositories = pluginDependencyResolutionServices.resolveRepositoryHandler
+
     private val resolver by lazy {
         DependencyResolver(
             pluginDependencyResolutionServices.configurationContainer,