Helper for publishing artifact to maven

publishing.kt

fun Project.configurePublishing(artifactId: String, android: Boolean = false) {
    var publishingExtension: PublishingExtension? = null
    apply<MavenPublishPlugin>()
    apply<SigningPlugin>()
    configure<PublishingExtension> {
        publishingExtension = this
        publications {
            create<MavenPublication>("mavenRelease") {
                this.artifactId = artifactId
                if (android) {
                    from(components["release"])
                } else {
                    from(components["kotlin"])
                }
            }
            repositories {
                maven {
                    url = uri("$buildDir/repos/releases")
                }
            }
        }
    }
    configure<SigningExtension> {
        sign(publishingExtension!!.publications["mavenRelease"])
    }

}