I try to set up a Gradle Android Plugin to create buildTypes dynamically. The plugin is applied, I see it in the logs, but the finalizeDsl part is not triggered. Anyone knows why is that and how to fix it ?

I have followed https://github.com/android/gradle-recipes/tree/agp-9.0/addBuildTypeUsingDslFinalize to create the plugin.

Here is the plugin code:

import com.android.build.api.variant.ApplicationAndroidComponentsExtension
import com.android.build.gradle.AppPlugin
import org.gradle.api.Plugin
import org.gradle.api.Project
import org.gradle.api.logging.LogLevel
import org.gradle.internal.cc.base.logger

class CustomPlugin : Plugin<Project> {
    override fun apply(project: Project) {

        logger.log(LogLevel.INFO, "Logger CustomPlugin applied")
        println("CustomPlugin applied")

        project.afterEvaluate {
            // Registers a callback on the application of the Android Application plugin.
            // This allows the CustomPlugin to work whether it's applied before or after
            // the Android Application plugin.
            project.plugins.withType(AppPlugin::class.java) {

                // Queries for the extension set by the Android Application plugin.
                // This is the second of two entry points into the Android Gradle plugin
                val androidComponents =
                    project.extensions.getByType(ApplicationAndroidComponentsExtension::class.java)

                androidComponents.finalizeDsl { extension ->
                    val stagingBuildType = extension.buildTypes.create("staging")
                    stagingBuildType.initWith(extension.buildTypes.getByName("debug"))
                    stagingBuildType.isDefault = true

                    val preprodBuildType = extension.buildTypes.create("preprod")
                    preprodBuildType.initWith(extension.buildTypes.getByName("release"))
                    logger.lifecycle("🔧 finalizeDsl running!") // Should appear in logs
                    println("CustomPlugin finalize called")
                }
            }
        }
    }
}

My build.gradle.kts:

plugins {
    `java-gradle-plugin`
    alias(libs.plugins.kotlin.jvm)
}

java {
    toolchain {
        languageVersion.set(JavaLanguageVersion.of(17))
    }
}

dependencies {
    compileOnly(libs.android.gradlePlugin.api)
    implementation(gradleKotlinDsl())
}

gradlePlugin {
    plugins {
        create("addBuildTypeUsingDslFinalize") {
            id = "android.recipes.addBuildTypeUsingDslFinalize"
            implementationClass = "CustomPlugin"
        }
    }
}

and the libs.versions.toml:

[versions]

androidGradlePlugin = "8.13.2"

kotlin = "2.1.20"

[libraries]

android-gradlePlugin-api = { group = "com.android.tools.build", name = "gradle-api", version.ref = "androidGradlePlugin" }

[plugins]

kotlin-jvm = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }

override fun apply(project: Project) {
    project.plugins.withType(AppPlugin::class.java) {
        val androidComponents =
            project.extensions.getByType(ApplicationAndroidComponentsExtension::class.java)

        androidComponents.finalizeDsl { extension ->
            // your buildTypes code
        }
    }
}