abstract class Producer extends DefaultTask {
    @OutputFile
    abstract RegularFileProperty getOutputFile()

    @TaskAction
    void produce() {
        String message = 'Hello, World!'
        def output = outputFile.get().asFile
        output.text = message
        logger.quiet("Wrote '${message}' to ${output}")
    }
}

abstract class Consumer extends DefaultTask {
    @Input
    abstract Property<String> getMessage()

val rpmArtifact = artifacts.add("conf", rpmFile.get().asFile) {
    type = "rpm"
    builtBy("rpm")
}
// end::custom-artifact[]

tasks.register("rpm") {
    // Reduce scope of property for compatibility with the configuration cache
    val rpmFile = rpmFile
    outputs.file(rpmFile)
    doLast {
        // produce real RPM here
        rpmFile.get().asFile.writeText("file contents")
    }
}

    version = project.version
    versionInfoFile = layout.buildDirectory.file('generated-resources/currentVersion.properties')
}

sourceSets.main.output.dir(currentVersionInfo.map { it.versionInfoFile.get().asFile.parentFile })

abstract class CurrentVersionInfo extends DefaultTask {
    @Input
    abstract Property<String> getVersion()

    @OutputFile
    abstract RegularFileProperty getVersionInfoFile()

                inFile = file("in.txt")
                outFile = layout.buildDirectory.file("out.txt")
            }
            task transformer(type: InputTask) {
                inValue = producer.outFile.map { f -> f.asFile.text as Integer }.map { i -> i + 2 }
                outFile = file("out.txt")
            }
        """
        def input = file("in.txt")
        def output = file("out.txt")

    version = project.version as String
    versionInfoFile = layout.buildDirectory.file("generated-resources/currentVersion.properties")
}

sourceSets.main.get().output.dir(currentVersionInfo.map { it.versionInfoFile.get().asFile.parentFile })

abstract class CurrentVersionInfo : DefaultTask() {
    @get:Input
    abstract val version: Property<String>

    @get:OutputFile
    abstract val versionInfoFile: RegularFileProperty

    @get:OutputDirectory
    abstract val outputDir: DirectoryProperty

    @TaskAction
    fun compile() {
        val inFile = configFile.get().asFile
        logger.quiet("configuration file = $inFile")
        val dir = outputDir.get().asFile
        logger.quiet("output dir = $dir")
        val className = inFile.readText().trim()
        val srcFile = File(dir, "${className}.java")

                @OutputFile
                val outFile: RegularFileProperty = project.objects.fileProperty()

                @TaskAction
                fun run() {
                    outFile.get().asFile.writeText("content")
                }
            }
        """
    }

    @Override
    void taskWithNestedBeanDefinition() {
        pluginDir.file("src/main/kotlin/ProducerTask.kt") << """

        val message = "Hello, World!"
        val output = outputFile.get().asFile
        output.writeText( message)
        logger.quiet("Wrote '${message}' to ${output}")
    }
}

abstract class Consumer : DefaultTask() {
    @get:InputFile
    abstract val inputFile: RegularFileProperty

    @TaskAction
    fun consume() {
        val input = inputFile.get().asFile
        val message = input.readText()

        if (!distribution.isFile) {
            throw IllegalStateException("${distribution.absolutePath} doesn't exist. Did you set the wrong base version?\n${distribution.parentFile.list()?.joinToString("\n")}")
        }
        distribution.copyTo(commitDistribution.asFile.get(), true)
    }

    private
    fun tryBuildDistribution(checkoutDir: File) {

// end::executableDir-conf[]

// tag::distribution-spec[]
tasks.register('createDocs') {
    def docs = layout.buildDirectory.dir('docs')
    outputs.dir docs
    doLast {
        docs.get().asFile.mkdirs()
        docs.get().file('readme.txt').asFile.write('Read me!')
    }
}

distributions {
    main {
        contents {
            from(createDocs) {
                into 'docs'
            }
        }
    }
}