With 0.7.0, I tried using the publishing plugin like this:

val publishing: NamedDomainObjectContainer<Publication> by extensions
publishing {
     "Module"(MavenPublication::class) {
        // more code here
    }
}

but I get this error:

Element 'publishing' of type 'org.gradle.api.publish.internal.DefaultPublishingExtension_Decorated' from container 'org.gradle.api.internal.plugins.DefaultConvention@260e45a' cannot be cast to 'org.gradle.api.NamedDomainObjectContainer'

Am I doing something wrong, or is this not supported yet?

The extension is of type

PublishingExtension

so the following should give you access to it:

val publishing: PublishingExtension by extensions

But cannot apply a closure to

publishing

so I have to write two lines

`
val publishing: PublishingExtension by extensions
val publications: NamedDomainObjectContainer<Publication> = publishing.publications

in that case.

you can use Kotlin’s

apply

as in

publishing.apply { …

but there’s nothing wrong with your solution

Thanks for the tips