binary-task-not-showing-source-sets.gradle

import org.gradle.platform.*

interface CustomLanguageSourceSet extends LanguageSourceSet {}
interface SampleComponent extends ComponentSpec {}
interface SampleBinary extends BinarySpec {}

class DefaultCustomLanguageSourceSet extends BaseLanguageSourceSet implements CustomLanguageSourceSet {}
class DefaultSampleBinary extends BaseBinarySpec implements SampleBinary {}
class DefaultSampleComponent extends BaseComponentSpec implements SampleComponent {}

class MyTask extends DefaultTask {

  def sourceSets = [] as Set

  @TaskAction
  void printSources() {
    println sourceSets
  }
}

class MyCustomBinariesPlugin extends RuleSource {
  @LanguageType
  void declareCustomLanguage(LanguageTypeBuilder<CustomLanguageSourceSet> builder) {
    builder.setLanguageName("custom");
    builder.defaultImplementation(DefaultCustomLanguageSourceSet)
  }

  @ComponentType
  public void register(ComponentTypeBuilder<SampleComponent> builder) {
    builder.defaultImplementation(DefaultSampleComponent.class);
  }

  @BinaryType
  void register(BinaryTypeBuilder<SampleBinary> builder) {
    builder.defaultImplementation(DefaultSampleBinary)
  }

  @BinaryTasks
  public void createSourceDistTask(ModelMap<Task> tasks, final SampleBinary spec) {
    String postFix = GUtil.toCamelCase(spec.getName());
    tasks.create("generate" + spec.getName(), MyTask.class, new Action<MyTask>() {
      void execute(MyTask t) {
        spec.getSources().each { it
          t.sourceSets << it
        }
      }
    });
  }
}

apply plugin: MyCustomBinariesPlugin

model {
  components {
    t(SampleComponent) {
      sources {
        ss(CustomLanguageSourceSet) {
          source {
            srcDir 'src/main/foo'
          }
        }
      }
      binaries {
        bin(SampleBinary) { }
      }
    }
  }
}