@get:Input
    @get:Optional
    abstract val commitId: Property<String>

    @get:Input
    abstract val snapshot: Property<Boolean>

    @get:Input
    abstract val promotionBuild: Property<Boolean>

    @get:Input
    @get:Optional
    abstract val buildTimestamp: Property<Date>

    @get:OutputDirectory
    abstract val receiptFolder: DirectoryProperty

}

interface ModuleIdentity {

    val version: Property<GradleVersion>

    val baseName: Property<String>

    val buildTimestamp: Property<String>

    val snapshot: Property<Boolean>

    val promotionBuild: Property<Boolean>

    val releasedVersions: Property<ReleasedVersionsDetails>

}

interface ModuleTargetRuntimes {

    /**
     * Declare that this Gradle module runs as part of worker process.

    // compute these at the settings-level instead of the project-level.
    identity {
        baseName = "gradle-$name"
        buildTimestamp = buildTimestamp()
        promotionBuild = isPromotionBuild

        val finalReleaseSuffix = buildFinalRelease.map { "" }
        val rcSuffix = buildRcNumber.map { "-rc-$it" }
        val milestoneSuffix = buildMilestoneNumber.map { "-milestone-$it" }

            dependsOn("signGradleDistributionPublication")
        }
    }
}

/**
 * Tasks that are called by the (currently separate) promotion build running on CI.
 */
tasks.register("promotionBuild") {
    description = "Build production distros, smoke test them and publish"
    group = "publishing"
    dependsOn(":packageBuild", "publish")