Kotlin DSL extension

build.gradle.kts

repository {
    google()
    github("kubode/some-repo")
    mavenCentral()
}

RepositoryHandler.github.kt

import java.net.URI
import org.gradle.api.Project
import org.gradle.api.artifacts.dsl.RepositoryHandler
import org.gradle.api.artifacts.repositories.MavenArtifactRepository
import org.gradle.kotlin.dsl.provideDelegate

val RepositoryHandler.github: Project.(repo: String) -> MavenArtifactRepository get() = { repo ->
    maven {
        url = URI("https://maven.pkg.github.com/$repo")
        credentials {
            val githubToken: String by project
            username = "unused"
            password = githubToken
        }
    }
}