I'm attempting to add some configuration to all Ko...

# gradle

[rnett]

I'm attempting to add some configuration to all Kotlin source sets based on my Plugin's extension (to add a dependency, or not based on the extension property). This seems pretty straightforward, just use KotlinBaseExtension.sourceSets.configureEach { ... }. However, the source sets appear to be configured/resolved before the build script is ran, meaning setting properties in my extension isn't reflected in the configuration since the added configuration runs first. Is this known or expected behaviour? I can probably slap an afterEvaluate on it but I'd prefer to avoid that if possible since it's a whole can of worms.

[rnett]

I found a workaround by moving the provider into the dependency declaration itself (i.e. implementation(myProperty.map{ ifIit) REAL_DEPENDENCY else null }) but this still seems pretty ugly and I'm surprised it's necessary

[Vampire]

Yes, fully expected, not at all surprising or ugly, and using a provider is exactly the right thing to do. 🙂

[Vampire]

afterEvaluates is almost never the way to go. The main benefits of using it are timing problems, ordering problems, and race conditions as you seem to know. 🙂

If you would not have been able to use a Provider to add the dependency, for example because you wanted to register a task based on the property, there would be other tactics, like always registering the task but skipping it in onlyIf { ... } checking the property, or not using a property in the extension, but instead have a function which your user calls and which then uses the argument and does the necessary logic in its body.