#171 Migrate ScoverageReport from Groovy to Kotlin

Author: eyalroth

src/main/groovy/org/scoverage/ScoverageAggregate.groovy

@@ -51,7 +51,7 @@ class ScoverageAggregate extends DefaultTask {
 
     @TaskAction
     def aggregate() {
-        runner.run {
+        runner.runGroovy {
             reportDir.get().deleteDir()
             reportDir.get().mkdirs()
 

src/main/groovy/org/scoverage/ScoverageReport.groovy renamed to src/main/kotlin/org/scoverage/ScoverageReport.kt

@@ -13,49 +13,50 @@ import org.gradle.api.tasks.PathSensitive
 import org.gradle.api.tasks.TaskAction
 import scoverage.report.CoverageAggregator
 
-import static org.gradle.api.tasks.PathSensitivity.RELATIVE
+import org.gradle.api.tasks.PathSensitivity.RELATIVE
+import java.io.File
 
 @CacheableTask
-class ScoverageReport extends DefaultTask {
+abstract class ScoverageReport: DefaultTask() {
 
     @Nested
-    ScoverageRunner runner
+    var runner: ScoverageRunner? = null
 
     @InputDirectory
     @PathSensitive(RELATIVE)
-    final Property<File> dataDir = project.objects.property(File)
+    val dataDir: Property<File> = project.objects.property(File::class.java)
 
     @InputFiles
     @PathSensitive(RELATIVE)
-    final Property<FileCollection> sources = project.objects.property(FileCollection)
+    val sources: Property<FileCollection> = project.objects.property(FileCollection::class.java)
 
     @OutputDirectory
-    final Property<File> reportDir = project.objects.property(File)
+    val reportDir: Property<File> = project.objects.property(File::class.java)
 
     @Input
-    final Property<String> sourceEncoding = project.objects.property(String)
+    val sourceEncoding: Property<String> = project.objects.property(String::class.java)
 
     @Input
-    final Property<Boolean> coverageOutputCobertura = project.objects.property(Boolean)
+    val coverageOutputCobertura: Property<Boolean> = project.objects.property(Boolean::class.java)
     @Input
-    final Property<Boolean> coverageOutputXML = project.objects.property(Boolean)
+    val coverageOutputXML: Property<Boolean> = project.objects.property(Boolean::class.java)
     @Input
-    final Property<Boolean> coverageOutputHTML = project.objects.property(Boolean)
+    val coverageOutputHTML: Property<Boolean> = project.objects.property(Boolean::class.java)
     @Input
-    final Property<Boolean> coverageDebug = project.objects.property(Boolean)
+    val coverageDebug: Property<Boolean> = project.objects.property(Boolean::class.java)
 
     @TaskAction
-    def report() {
-        runner.run {
+    fun report() {
+        runner?.run {
             reportDir.get().delete()
             reportDir.get().mkdirs()
 
-            def coverage = CoverageAggregator.aggregate([dataDir.get()] as File[])
+            val coverage = CoverageAggregator.aggregate(arrayOf(dataDir.get()))
 
-            if (coverage.isEmpty()) {
+            if (coverage.isEmpty) {
                 project.logger.info("[scoverage] Could not find coverage file, skipping...")
             } else {
-                new ScoverageWriter(project.logger).write(
+                ScoverageWriter(project.logger).write(
                         sources.get().getFiles(),
                         reportDir.get(),
                         coverage.get(),

src/main/kotlin/org/scoverage/ScoverageRunner.kt

@@ -8,8 +8,7 @@ import java.net.URLClassLoader
 
 class ScoverageRunner(@Classpath val runtimeClasspath: FileCollection) {
 
-    fun run(action: Closure<*>) {
-
+    fun run(action: () -> Unit) {
         val cloader = Thread.currentThread().getContextClassLoader() as URLClassLoader
 
         val method = URLClassLoader::class.java.getDeclaredMethod("addURL", URL::class.java)
@@ -22,6 +21,11 @@ class ScoverageRunner(@Classpath val runtimeClasspath: FileCollection) {
             }
         }
 
-        action.call()
+        action()
+    }
+
+    // TODO delete when no longer used by groovy code
+    fun runGroovy(action: Closure<*>) {
+        run { action.call() }
     }
 }