link processor task to compilation via output

Author: hauner

src/main/kotlin/io/openapiprocessor/gradle/OpenApiProcessorPlugin.kt

@@ -122,8 +122,8 @@ class OpenApiProcessorPlugin: Plugin<Project> {
                 task.description = "process openapi with openapi-processor-${processor.name}"
 
                 copyApiPath (task)
-                task.getApiDir().set(getInputDirectory())
-                task.getTargetDir().set(getOutputDirectory())
+                task.getApiDir().set(project.layout.projectDirectory.dir(getInputDirectory()))
+                task.getTargetDir().set(project.layout.projectDirectory.dir(getOutputDirectory()))
 
                 val handler = project.dependencies
                 val dependencies = ArrayList<Dependency>()

src/main/kotlin/io/openapiprocessor/gradle/OpenApiProcessorTask.kt

@@ -7,6 +7,7 @@ package io.openapiprocessor.gradle
 
 import org.gradle.api.DefaultTask
 import org.gradle.api.file.ConfigurableFileCollection
+import org.gradle.api.file.DirectoryProperty
 import org.gradle.api.provider.MapProperty
 import org.gradle.api.provider.Property
 import org.gradle.api.tasks.Classpath
@@ -30,15 +31,15 @@ abstract class OpenApiProcessorTask: DefaultTask() {
      * @return parent directory of the openapi.yaml
      */
     @InputDirectory
-    abstract fun getApiDir(): Property<String>
+    abstract fun getApiDir(): DirectoryProperty
 
     /**
      * Target directory for the sources generated by the processor. Used by gradle for the up-to-date check.
      *
      * @return target directory
      */
     @OutputDirectory
-    abstract fun getTargetDir(): Property<String>
+    abstract fun getTargetDir(): DirectoryProperty
 
     /**
      * The dependencies of the processor.