How to access Kotlin DSL extensions from non-build-gradle file? - maven

Question

There are few Kotlin Extensions that come along with org.gradle.kotlin.dsl like
android or publishing etc. Say, for publishing, the extension is defined as below
fun org.gradle.api.Project.`publishing`(configure: org.gradle.api.publish.PublishingExtension.() -> Unit): Unit =
(this as org.gradle.api.plugins.ExtensionAware).extensions.configure("publishing", configure)
That means within mybuild.gradle.kts I can call
publishing {
// blablabla
}
In my case, I have a separate file that handles publishing defined as random.gradle.kts and is located at totally random directory.
Here, I want to access this publishing extension but not able to do it.
Any suggestions are welcomed.
To give another example android is also not accessible.
In my build.gradle.kts I can access android but in my random.gradle.kts I am not able to do it.
android extension is defined as below
val org.gradle.api.Project.`android`: com.android.build.gradle.LibraryExtension get() =
(this as org.gradle.api.plugins.ExtensionAware).extensions.getByName("android") as com.android.build.gradle.LibraryExtension
In fact, LibraryExtension is also not accessible.
So, how to pass or import those extensions to my random.gradle.kts?

Answer 1

//build.gradle.kts tested with gradle 6.7
subprojects {
afterEvaluate {
(extensions.findByType(com.android.build.gradle.LibraryExtension::class)
?: extensions.findByType(com.android.build.gradle.AppExtension::class))?.apply {
println("Found android subproject $name")
lintOptions.isAbortOnError = false
compileSdkVersion(30)
if (this is com.android.build.gradle.AppExtension)
println("$name is an application")
if (this is com.android.build.gradle.LibraryExtension) {
val publishing =
extensions.findByType(PublishingExtension::class.java) ?: return#afterEvaluate
val sourcesJar by tasks.registering(Jar::class) {
archiveClassifier.set("sources")
from(sourceSets.getByName("main").java.srcDirs)
}
afterEvaluate {
publishing.apply {
val projectName = name
publications {
val release by registering(MavenPublication::class) {
components.forEach {
println("Publication component: ${it.name}")
}
from(components["release"])
artifact(sourcesJar.get())
artifactId = projectName
groupId = ProjectVersions.GROUP_ID
version = ProjectVersions.VERSION_NAME
}
}
}
}
}
}
}
}