1.29.0: Change classpath construction order to avoid Kotlin incompatibilities

Author: sergej-koscejev

CHANGELOG.md

@@ -2,6 +2,12 @@
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 1.29.0
+
+- `MpsCheck`, `MpsGenerate`, `MpsExecute`: put MPS jars at the beginning of the classpath of the corresponding backends,
+  in an attempt to solve incompatibility between the Kotlin version that the backends are built against and the Kotlin
+  version included in newer MPS versions (2024.1+).
+
 ## 1.28.0
 
 ### Added

build.gradle.kts

@@ -24,7 +24,7 @@ plugins {
     id("org.jetbrains.kotlinx.binary-compatibility-validator") version "0.13.2"
 }
 
-val baseVersion = "1.28.0"
+val baseVersion = "1.29.0"
 
 group = "de.itemis.mps"
 

src/main/kotlin/de/itemis/mps/gradle/tasks/MpsCheck.kt

@@ -1,28 +1,24 @@
 package de.itemis.mps.gradle.tasks
 
 import de.itemis.mps.gradle.BackendConfigurations
-import de.itemis.mps.gradle.ErrorMessages
 import de.itemis.mps.gradle.TaskGroups
 import de.itemis.mps.gradle.launcher.MpsBackendBuilder
 import de.itemis.mps.gradle.launcher.MpsVersionDetection
-import org.gradle.api.GradleException
 import org.gradle.api.Incubating
 import org.gradle.api.file.*
-import org.gradle.api.logging.LogLevel
 import org.gradle.api.provider.ListProperty
 import org.gradle.api.provider.MapProperty
 import org.gradle.api.provider.Property
 import org.gradle.api.provider.SetProperty
 import org.gradle.api.tasks.*
 import org.gradle.kotlin.dsl.*
-import org.gradle.language.base.plugins.LifecycleBasePlugin
 import org.gradle.process.CommandLineArgumentProvider
 
 @CacheableTask
 @Incubating
 abstract class MpsCheck : JavaExec(), VerificationTask {
 
-    @get:Internal("covered by mpsVersion, initialModelcheckBackendClasspath()")
+    @get:Internal("covered by mpsVersion, classpath")
     val mpsHome: DirectoryProperty = objectFactory.directoryProperty()
 
     @get:Input
@@ -69,8 +65,7 @@ abstract class MpsCheck : JavaExec(), VerificationTask {
     val parallel: Property<Boolean> = objectFactory.property<Boolean>().convention(false)
 
     @get:Internal("covered by classpath")
-    val additionalModelcheckBackendClasspath: ConfigurableFileCollection =
-        objectFactory.fileCollection().from(initialModelcheckBackendClasspath())
+    val additionalModelcheckBackendClasspath: ConfigurableFileCollection = objectFactory.fileCollection()
 
     @Suppress("unused")
     @get:InputFiles
@@ -142,6 +137,7 @@ abstract class MpsCheck : JavaExec(), VerificationTask {
 
         group = TaskGroups.VERIFICATION
 
+        classpath(mpsAndPluginJars())
         classpath(project.configurations.named(BackendConfigurations.MODELCHECK_BACKEND_CONFIGURATION_NAME))
         classpath(additionalModelcheckBackendClasspath)
 
@@ -153,7 +149,7 @@ abstract class MpsCheck : JavaExec(), VerificationTask {
         super.exec()
     }
 
-    private fun initialModelcheckBackendClasspath() = mpsHome.asFileTree.matching {
+    private fun mpsAndPluginJars() = mpsHome.asFileTree.matching {
         include("lib/**/*.jar")
 
         // add only minimal number of plugins jars that are required by the modelcheck code

src/main/kotlin/de/itemis/mps/gradle/tasks/MpsExecute.kt

@@ -1,15 +1,12 @@
 package de.itemis.mps.gradle.tasks
 
 import de.itemis.mps.gradle.BackendConfigurations
-import de.itemis.mps.gradle.ErrorMessages
 import de.itemis.mps.gradle.launcher.MpsBackendBuilder
 import de.itemis.mps.gradle.launcher.MpsVersionDetection
-import org.gradle.api.GradleException
 import org.gradle.api.Incubating
 import org.gradle.api.file.ConfigurableFileCollection
 import org.gradle.api.file.Directory
 import org.gradle.api.file.DirectoryProperty
-import org.gradle.api.logging.LogLevel
 import org.gradle.api.provider.ListProperty
 import org.gradle.api.provider.MapProperty
 import org.gradle.api.provider.Property
@@ -51,8 +48,7 @@ abstract class MpsExecute : JavaExec() {
     abstract val methodArguments: ListProperty<String>
 
     @get:Internal
-    val additionalExecuteBackendClasspath: ConfigurableFileCollection =
-        objectFactory.fileCollection().from(initialExecuteBackendClasspath())
+    val additionalExecuteBackendClasspath: ConfigurableFileCollection = objectFactory.fileCollection()
 
     init {
         mpsVersion.convention(MpsVersionDetection.fromMpsHome(project.layout, providerFactory, mpsHome.asFile))
@@ -82,6 +78,7 @@ abstract class MpsExecute : JavaExec() {
         description = "Execute specified method from a generated class to modify the MPS project"
         group = "execute"
 
+        classpath(mpsJars())
         classpath(project.configurations.named(BackendConfigurations.EXECUTE_BACKEND_CONFIGURATION_NAME))
         classpath(additionalExecuteBackendClasspath)
 
@@ -95,7 +92,7 @@ abstract class MpsExecute : JavaExec() {
         super.exec()
     }
 
-    private fun initialExecuteBackendClasspath() = mpsHome.asFileTree.matching {
+    private fun mpsJars() = mpsHome.asFileTree.matching {
         include("lib/**/*.jar")
     }
 }

src/main/kotlin/de/itemis/mps/gradle/tasks/MpsGenerate.kt

@@ -10,7 +10,6 @@ import org.gradle.api.file.ConfigurableFileCollection
 import org.gradle.api.file.Directory
 import org.gradle.api.file.DirectoryProperty
 import org.gradle.api.file.FileTree
-import org.gradle.api.logging.LogLevel
 import org.gradle.api.provider.ListProperty
 import org.gradle.api.provider.MapProperty
 import org.gradle.api.provider.Property
@@ -25,7 +24,7 @@ import org.gradle.process.CommandLineArgumentProvider
 @Incubating
 abstract class MpsGenerate : JavaExec() {
 
-    @get:Internal("covered by mpsVersion, initialGenerateBackendClasspath()")
+    @get:Internal("covered by mpsVersion, classpath")
     val mpsHome: DirectoryProperty = objectFactory.directoryProperty()
 
     @get:Input
@@ -69,8 +68,7 @@ abstract class MpsGenerate : JavaExec() {
     val parallelGenerationThreads: Property<Int> = objectFactory.property<Int>().convention(0)
 
     @get:Internal("covered by classpath")
-    val additionalGenerateBackendClasspath: ConfigurableFileCollection =
-        objectFactory.fileCollection().from(initialGenerateBackendClasspath())
+    val additionalGenerateBackendClasspath: ConfigurableFileCollection = objectFactory.fileCollection()
 
     @Suppress("unused")
     @get:InputFiles
@@ -127,8 +125,9 @@ abstract class MpsGenerate : JavaExec() {
 
         group = TaskGroups.GENERATION
 
-        classpath(project.configurations.named(BackendConfigurations.GENERATE_BACKEND_CONFIGURATION_NAME))
+        classpath(mpsJars())
         classpath(additionalGenerateBackendClasspath)
+        classpath(project.configurations.named(BackendConfigurations.GENERATE_BACKEND_CONFIGURATION_NAME))
 
         mainClass.set("de.itemis.mps.gradle.generate.MainKt")
     }
@@ -139,7 +138,7 @@ abstract class MpsGenerate : JavaExec() {
         super.exec()
     }
 
-    private fun initialGenerateBackendClasspath() = mpsHome.asFileTree.matching {
+    private fun mpsJars() = mpsHome.asFileTree.matching {
         include("lib/**/*.jar")
     }
 }