Fixes the clear focus task.

focus-gradle-plugin/api/focus-gradle-plugin.api

@@ -2,7 +2,7 @@ public abstract class com/dropbox/focus/ClearFocusTask : org/gradle/api/DefaultT
 	public static final field Companion Lcom/dropbox/focus/ClearFocusTask$Companion;
 	public fun <init> ()V
 	public final fun clearFocus ()V
-	public abstract fun getFocusFile ()Lorg/gradle/api/file/RegularFileProperty;
+	public abstract fun getFocusFilePath ()Lorg/gradle/api/provider/Property;
 }
 
 public final class com/dropbox/focus/ClearFocusTask$Companion {
@@ -32,6 +32,16 @@ public final class com/dropbox/focus/FocusPlugin : org/gradle/api/Plugin {
 	public fun apply (Lorg/gradle/api/initialization/Settings;)V
 }
 
+public final class com/dropbox/focus/FocusPlugin$apply$1$1$1$1$inlined$sam$i$org_gradle_api_Action$0 : org/gradle/api/Action {
+	public fun <init> (Lkotlin/jvm/functions/Function1;)V
+	public final synthetic fun execute (Ljava/lang/Object;)V
+}
+
+public final class com/dropbox/focus/FocusPlugin$apply$1$1$1$inlined$sam$i$org_gradle_api_Action$0 : org/gradle/api/Action {
+	public fun <init> (Lkotlin/jvm/functions/Function1;)V
+	public final synthetic fun execute (Ljava/lang/Object;)V
+}
+
 public abstract class com/dropbox/focus/FocusSubExtension {
 	public fun <init> (Lorg/gradle/api/file/ProjectLayout;Lorg/gradle/api/model/ObjectFactory;)V
 	public final fun getFocusSettingsFile ()Lorg/gradle/api/file/RegularFileProperty;

focus-gradle-plugin/build.gradle.kts

@@ -28,12 +28,6 @@ tasks.withType<KotlinCompile>().configureEach {
     // Because Gradle's Kotlin handling is stupid, this falls out of date quickly
     apiVersion = "1.5"
     languageVersion = "1.5"
-
-    // We use class SAM conversions because lambdas compiled into invokedynamic are not
-    // Serializable, which causes accidental headaches with Gradle configuration caching. It's
-    // easier for us to just use the previous anonymous classes behavior
-    @Suppress("SuspiciousCollectionReassignment")
-    freeCompilerArgs += "-Xsam-conversion=class"
   }
 }
 

focus-gradle-plugin/src/main/kotlin/com/dropbox/focus/ClearFocusTask.kt

@@ -3,25 +3,23 @@ package com.dropbox.focus
 import java.io.File
 import org.gradle.api.DefaultTask
 import org.gradle.api.file.RegularFileProperty
+import org.gradle.api.provider.Property
 import org.gradle.api.provider.Provider
 import org.gradle.api.tasks.CacheableTask
 import org.gradle.api.tasks.Input
-import org.gradle.api.tasks.InputFile
-import org.gradle.api.tasks.PathSensitive
-import org.gradle.api.tasks.PathSensitivity
 import org.gradle.api.tasks.TaskAction
 
 @CacheableTask
 public abstract class ClearFocusTask : DefaultTask() {
 
-  @get:PathSensitive(PathSensitivity.RELATIVE)
-  @get:InputFile
-  public abstract val focusFile: RegularFileProperty
+  @get:Input
+  public abstract val focusFilePath: Property<String>
 
   @TaskAction
   public fun clearFocus() {
-    if (focusFile.isPresent) {
-      focusFile.asFile.get().delete()
+    val focusFile = File(focusFilePath.get())
+    if (focusFile.exists()) {
+      focusFile.delete()
     }
   }
 
@@ -30,7 +28,9 @@ public abstract class ClearFocusTask : DefaultTask() {
       focusFileName: Provider<String>
     ): ClearFocusTask.() -> Unit = {
       group = FOCUS_TASK_GROUP
-      this.focusFile.set(project.rootProject.layout.file(focusFileName.map { File(it) }))
+      this.focusFilePath.set(
+        project.rootProject.layout.file(focusFileName.map { File(it) }).map { it.asFile.absolutePath }
+      )
     }
   }
 }

focus-gradle-plugin/src/test/kotlin/com/dropbox/focus/FocusPluginTest.kt

@@ -2,17 +2,22 @@ package com.dropbox.focus
 
 import com.google.common.truth.Truth.assertThat
 import java.io.File
+import java.time.temporal.Temporal
 import org.gradle.testkit.runner.BuildResult
 import org.gradle.testkit.runner.GradleRunner
 import org.junit.Before
+import org.junit.Rule
 import org.junit.Test
+import org.junit.rules.TemporaryFolder
 
 class FocusPluginTest {
+  @get:Rule val buildDir = TemporaryFolder()
   private lateinit var gradleRunner: GradleRunner
 
   @Before
   fun setup() {
     gradleRunner = GradleRunner.create()
+      .withTestKitDir(buildDir.root)
       .withPluginClasspath()
   }
 
@@ -21,8 +26,16 @@ class FocusPluginTest {
     val fixtureRoot = File("src/test/projects/configuration-cache-compatible")
 
     gradleRunner
-      .withArguments("clearFocus", "--configuration-cache", "--stacktrace")
-      .runFixture(fixtureRoot) { build() }
+      .withArguments("--configuration-cache", "clearFocus")
+      .withProjectDir(fixtureRoot)
+      .build()
+
+    val result = gradleRunner
+      .withArguments("--configuration-cache", "clearFocus")
+      .withProjectDir(fixtureRoot)
+      .build()
+
+    assertThat(result.output).contains("Reusing configuration cache.")
   }
 
   @Test

gradle/libs.versions.toml

@@ -2,7 +2,7 @@
 kotlin = "1.6.10"
 
 [libraries]
-junit = "junit:junit:4.12"
+junit = "junit:junit:4.13"
 truth = "com.google.truth:truth:1.1.3"
 kotlin-bom = { module = "org.jetbrains.kotlin:kotlin-bom", version.ref = "kotlin" }
 kotlin-plugin = { module = "org.jetbrains.kotlin:kotlin-gradle-plugin", version.ref = "kotlin" }
@@ -11,5 +11,5 @@ kotlin-plugin = { module = "org.jetbrains.kotlin:kotlin-gradle-plugin", version.
 dokka = { id = "org.jetbrains.dokka", version.ref = "kotlin" }
 kotlin-jvm = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }
 mavenPublish = { id = "com.vanniktech.maven.publish", version = "0.18.0" }
-binaryCompatibilityValidator = { id = "org.jetbrains.kotlinx.binary-compatibility-validator", version = "0.8.0" }
+binaryCompatibilityValidator = { id = "org.jetbrains.kotlinx.binary-compatibility-validator", version = "0.14.0" }
 

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.4.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.8-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists