Running a function with Gradle & Kotlin (build.gradle.kts)

ドキュメントの Gradle の例から始め、提供されている build.gradle.kts 設定と比較します。Kotlin DSL 形式と、runFunction.target がない場合のフォールバックを含めるようにドキュメントを更新し、その後、例が記載された Kotlin および Gradle のバージョンと互換性があることを確認します。

Thanks for putting all this together! I was trying to get the local invoker working on my local machine, which is setup using kotlin (1.3.72) and gradle (6.4.1) via the build.gradle.kts file.

The Gradle example in the documentation uses a format that doesn't seem compatible with the build.gradle.kts file, so I'm hoping sharing that particular configuration helps people set up their project.

build.gradle.kts

val invoker by configurations.creating

dependencies {
    implementation("com.google.cloud.functions:functions-framework-api:1.0.1")
    invoker("com.google.cloud.functions.invoker:java-function-invoker:1.0.0-alpha-2-rc5")
}

task<JavaExec>("runFunction") {
    main = "com.google.cloud.functions.invoker.runner.Invoker"
    classpath(invoker)
    inputs.files(configurations.runtimeClasspath, sourceSets["main"].output)
    args(
        "--target", project.findProperty("runFunction.target") ?: "",
        "--port", project.findProperty("runFunction.port") ?: 8080
    )
    doFirst {
        args("--classpath", files(configurations.runtimeClasspath, sourceSets["main"].output).asPath)
    }
}

Apart from the particular formatting for the .kts version, I did have to add one thing:

• I had to add the elvis operator ?: "" for ``--target, otherwise you cannot build the project due to Illegal null value provided in this collection: [--target, null, --port, 8080]`