gradle.allprojects {
    ext.getCurrentProductVariant = {
        def taskName = project.gradle.startParameter.taskNames.find { it.contains("assemble") }
        if (taskName != null) {
            def variantParts = taskName.split(/(?<!^)(?=[A-Z])/)[-2..-1].collect { it.toLowerCase() }
            return new ProductVariant(buildType: variantParts[1], productFlavor: variantParts[0])
        }
        return null
    }
}

class ProductVariant {
    String buildType
    String productFlavor
}