将任务外部化生成.gradle.kts

目前我的生成.gradle.kts看起来有点像:

import org.asciidoctor.gradle.jvm.AsciidoctorTask

val revDate = System.getenv()["revdate"] ?: SimpleDateFormat("yyyy-MM-dd").format(Date())
val revNumber = System.getenv()["revnumber"] ?: "DEV-Version"

plugins {
...
    id("org.asciidoctor.jvm.convert") version "3.1.0"
...
}

tasks.withType<AsciidoctorTask>().configureEach {
    setSourceDir(file("src/docs"))
    setOutputDir(file("$buildDir/docs"))

    attributes(
        mapOf(
            "source-highlighter" to "rouge",
            "toc"                to "left",
            "toclevels"          to 2,
            "idprefix"           to "",
            "idseparator"        to "-",
            "revnumber"          to "$revNumber",
            "revdate"            to "$revDate"
        )
    )
}

以上生成.gradle.kts如果调用asciidctor任务,则生成我的文档。现在,我尝试使用

apply {
    from("gradle/asciidoctor.gradle.kts")
}

在生成.gradle.kts并进一步定义上述使用的文件:

#gradle/asciidoctor.gradle.kts
import org.asciidoctor.gradle.jvm.AsciidoctorTask

buildscript {
    repositories {
        gradlePluginPortal()
    }
    dependencies {
        classpath("org.asciidoctor:asciidoctor-gradle-jvm:3.1.0")
    }
}

apply{
    plugin("org.asciidoctor.jvm.convert")
}

tasks.withType<AsciidoctorTask>().configureEach {
    setSourceDir(file("src/docs"))
    setOutputDir(file("$buildDir/docs"))

    attributes(
        mapOf(
            "source-highlighter" to "rouge",
            "toc"                to "left",
            "toclevels"          to 2,
            "idprefix"           to "",
            "idseparator"        to "-",
            "revnumber"          to "$project.revNumber",
            "revdate"            to "$project.revDate"
        )
    )
}

不幸的是,这不能正常工作,并给我一个例外,即插件与给定的id('org.ascidoctor.jvm.convert')未找到。

我正在使用Gradle6.6.1。

我错过了什么,我应该做些什么?