How can we enable compose metrics and `@Stable` inference in multiplatform modules with android sou...

# compose

[Saiedmomen]

How can we enable compose metrics and @Stable inference in multiplatform modules with android soucesets? There are no composables in the module.
I have tried adding the following to the android block but doesn't seem to work
and metrics report isn't generated for the module
I am following Chris Banes blogpost on the issue and reports are generated for the main app module

android {    
    ...
    buildFeatures {
        compose = true
    }
    composeOptions {
        kotlinCompilerExtensionVersion = libs.versions.compose.get()
    }
}

[Albert Chang]

The lines you are showing are applying compose compiler plugin again and have nothing to do with compiler metrics.
Add the compiler arguments as shown in the blog post.

[Saiedmomen]

I have added the arguments like the article and it is working for the app module.
I run:

./gradlew assembleRelease -Pappname.android.enableComposeCompilerReports=true --rerun-tasks

and the reports are generated for the app module in the app/build/compose_metrics directory.
Even though the gradle task from the article that sets the compiler flags is for all subprojects, it is only working for the app module.
Also inference isn't working as I see in the app module report but there is a chance that it might be because of some gotcha in the inference rules. I need the report to debug it.

[Albert Chang]

Are you adding the arguments to the root build.gradle file? Looks like you are adding them to the build.gradle of app module.

[Saiedmomen]

yes I'm adding it to the root build.gradle

[Saiedmomen]

I will create a minimum working example later

[Zoltan Demant]

Are you specifying different files for the output? It might be that each report overwrites the previous one?

[Saiedmomen]

It should be created in a path relative to each module.
The app module report is indeed created at
app/build/compose_metrics
so I expect the shared module report to be created at
shared/build/compose_metrics

[Arkadii Ivanov]

Here is an example - https://github.com/JetBrains/compose-jb/tree/master/examples/todoapp

Also please note that compose doesn't officially support iOS yet.

[Albert Chang]

You are using multiplatform plugin in the shared module so you should apply jetbrains compose plugin. I’m not sure whether AGP’s feature to apply compose compiler plugin works well with kotlin multiplatform plugin.

[Saiedmomen]

@Albert Chang
yeah it seems to have issues at the moment

[Landry Norris]

When you say multiplatform, do you mean Android/desktop, or Android/iOS?

[Saiedmomen]

android/iOS but doesn't work even for class specific to android sourceset