Package org.gradle.api.tasks

Interface SourceSetOutput

All Superinterfaces:
AntBuilderAware, Buildable, FileCollection, Iterable<File>
public interface SourceSetOutput extends FileCollection
A collection of all output directories (compiled classes, processed resources, etc.) - notice that SourceSetOutput extends FileCollection.

Provides output information of the source set. Allows configuring the default output dirs and specify additional output dirs. 

 plugins {
     id 'java'
 }

 sourceSets {
   main {
     //if you truly want to override the defaults:
     output.resourcesDir = file('out/bin')
     // Compiled Java classes should use this directory
     java.destinationDirectory.set(file('out/bin'))
   }
 }
Working with generated resources.

In general, we recommend generating resources into folders different than the regular resourcesDir and classesDirs. Usually, it makes the build easier to understand and maintain. Also it gives some additional benefits because other Gradle plugins can take advantage of the output dirs 'registered' in the SourceSet.output. For example: Java plugin will use those dirs in calculating class paths and for jarring the content; IDEA and Eclipse plugins will put those folders on relevant classpath.

An example how to work with generated resources: 

 plugins {
   id 'java'
 }

 def generateResourcesTask = tasks.register("generate-resources", GenerateResourcesTask) {
   resourcesDir.set(layout.buildDirectory.dir("generated-resources/main"))
 }

 // Include all outputs of the `generate-resources` task as outputs of the main sourceSet.
 sourceSets {
   main {
     output.dir(generateResourcesTask)
   }
 }

 abstract class GenerateResourcesTask extends DefaultTask {
   @OutputDirectory
   abstract DirectoryProperty getResourcesDir()

   @TaskAction
   def generateResources() {
     def generated = resourcesDir.file("myGeneratedResource.properties").get().asFile
     generated.text = "message=Stay happy!"
   }
 }
Find more information in dir(Object) and getDirs()

  • Method Details

    • getClassesDirs

      FileCollection getClassesDirs()
      Returns the directories containing compiled classes.
      Returns:
      The classes directories. This value may safely be cast to a ConfigurableFileCollection.
      Since:
      4.0

    • getResourcesDir

      @Nullable File getResourcesDir()
      Returns the output directory for resources

      See example at SourceSetOutput

      Returns:
      The dir resources are copied to.

    • setResourcesDir

      void setResourcesDir(File resourcesDir)
      Sets the output directory for resources

      See example at SourceSetOutput

      Parameters:
      resourcesDir - the resources dir. Should not be null.
      Since:
      4.0

    • setResourcesDir

      void setResourcesDir(Object resourcesDir)
      Sets the output directory for resources

      See example at SourceSetOutput

      Parameters:
      resourcesDir - the resources dir. Should not be null.

    • dir

      void dir(Map<String,Object> options, Object dir)
      Registers an extra output dir and the builtBy information. Useful for generated resources.

      See example at SourceSetOutput

      Parameters:
      options - - use 'builtBy' key to configure the 'builtBy' task of the dir
      dir - - will be resolved as Project.file(Object)

    • dir

      void dir(Object dir)
      Registers an extra output dir. Useful for generated resources.

      See example at SourceSetOutput

      Parameters:
      dir - - will be resolved as Project.file(Object)

    • getDirs

      FileCollection getDirs()
      Returns all dirs registered with #dir method. Each file is resolved as Project.file(Object)

      See example at SourceSetOutput

      Returns:
      a new instance of registered dirs with resolved files

    • getGeneratedSourcesDirs

      FileCollection getGeneratedSourcesDirs()
      Returns the directories containing generated source files (e.g. by annotation processors during compilation).
      Returns:
      The generated sources directories. Never returns null.
      Since:
      5.2