Kotlin-dsl-samples: Gradle wrapper configuration

[deeprim]

Gradle Wrapper Configuration

Expected Behavior

Ability to configure default gradle wrapper via kotlin DSL

Current Behavior

task<Wrapper>("wrapper") { /**...*/ }

above code spawns warning:
Creating a custom task named 'wrapper' has been deprecated and is scheduled to be removed in Gradle 5.0. You can configure the existing task using the 'wrapper { }' syntax or create your custom task under a different name.'.

wrapper { } 

above doesn't compile with following errors:
Line 45: wrapper {
^ Expression 'wrapper' cannot be invoked as a function. The function 'invoke()' is not found

Line 45: wrapper {
^ Unresolved reference. None of the following candidates is applicable because of receiver type mismatch:
public val PluginDependenciesSpec.wrapper: PluginDependencySpec defined in org.gradle.kotlin.dsl

wrapper task with different name (e.g. gradleWrapper) doesn't work well with IntelliJ IDEA. IDEA doesn't not use it to configure the wrapper

Your Environment

Gradle 4.8.1

[mkobit]

Accessors aren't generated for tasks, so just doing wrapper {} will fail to compile. The accessors for tasks may be done in https://github.com/gradle/kotlin-dsl/issues/879

To configure an existing task with type do something like the following:

tasks {
  "wrapper"(Wrapper::class) {
    // configuration here
  }
}

[JLLeitschuh]

This should be documented here:
https://docs.gradle.org/current/userguide/gradle_wrapper.html

[tadfisher]

tasks.withType<Wrapper> {
    gradleVersion = "4.9"
    // anything else
}

[eskatos]

Superseded by https://github.com/gradle/gradle/pull/5923