Read Gradle project/build dirs in config cache compatible way

Author: DSteve595

kt/plugins/godot-gradle-plugin/src/main/kotlin/godot/gradle/tasks/generateGdIgnoreFilesTask.kt

@@ -10,16 +10,15 @@ fun Project.generateGdIgnoreFilesTask(): TaskProvider<Task> {
  group = "godot-kotlin-jvm"
  description = "Generates .gdignore files to hide gradle files, kotlin build files and jre files from the godot editor."
 
- doFirst {
+ // safety check: make sure that the target project has our plugin
+ val hasPlugin = provider { pluginManager.hasPlugin("com.utopia-rise.godot-kotlin-jvm") }
+ onlyIf { hasPlugin.get() }
 
- // safety check: make sure that the target project has our plugin
- if (!this.project.pluginManager.hasPlugin("com.utopia-rise.godot-kotlin-jvm")) {
- // the target project doesn't seem to have our plugin; skip.
- return@doFirst
- }
+ val projectDir = layout.projectDirectory.asFile
+ val buildDirProvider = layout.buildDirectory.asFile
+ doFirst {
 
- val projectDir = this.project.projectDir
- val buildDir = this.project.layout.buildDirectory.asFile.get()
+ val buildDir = buildDirProvider.get()
 
  val targetDirSequence = sequenceOf(
  buildDir,