Applying ksp after evaluation

[jakoss]

I'm trying to replicate applying ksp conditionally, but i encountered a strange issue. I have something like that in my plugin (composite build):

target.afterEvaluate {
    if (myExtension.ksp) {
        target.pluginManager.apply("com.google.devtools.ksp")
        target.dependencies.add("ksp", project(":core:processor"))
    }
}

The issue is that the :core:processor does not run. There is completely nothing in logs, no errors or warnings. The ksp just does not generate code.

Doing the same code directly in target build.gradle.kts results with properly generated code. Is that something with afterEvaluate? Do i have to trigger processor compiler manually again? I cannot find anything like that in your plugin.

Anothing things, like dagger, implementation dependencies works fine, but the ksp is just not running for me.

I also tried to apply plugin in proper build.gradle.kts and then just add ksp dependencies in plugin. That does not work either. So it seems like doing target.dependencies.add("ksp", project(":core:processor")) in plugin does not trigger ksp.

UPDATE: Doing a SINGLE target.dependencies.add("ksp", project(":core:processor")) before the afterEvaluate triggers ksp even for ksp dependencies later on (so i can do single ksp before evaluation and then add other ksp depenendencies after that. But that still does not solve the issue for me, so i'm wondering how slack dealed with that

[ZacSweers]

We track whether or not the plugin is needed and then apply it IFF it hasn't been already applied.

The relevant functions are

• "mark" functions like this. These track if we need to apply the plugin or no-op if already applied
• we look through our extension in afterEvaluate and configure KSP accordingly, like this example with autoservice

Anything beyond that though then I think you'll just need to make a repro project and file an issue on the KSP repo

[jakoss]

Ok thanks, I'll try to take this up with the ksp. Your approach is great and I learned a lot from the plugin
Thanks!