I have KMP project with android and ios targets, I want to add wasmJs, but Room is in commonMain. An...

# multiplatform

[Fergus Hewson]

I have KMP project with android and ios targets, I want to add wasmJs, but Room is in commonMain. Any ideas on how to extract out the room database and only apply it to android/ios targets?

[jw]

You can make your own groups that encapsulate other groups like this: https://github.com/JakeWharton/mosaic/blob/trunk/mosaic-runtime/build.gradle#L8-L17

[jw]

So you'd do a "mobile" that contained "android" and "ios", and then move the dependency to mobileMain sourceSet declaration

[jw]

And move your code that talks to it to src/mobileMain/kotlin/

[jw]

That DSL works better in kts. I filed an issue to fix it for Groovy

[Fergus Hewson]

Thanks Jake will have a crack at it today!

[Fergus Hewson]

Ended up going with this, works great :)

val mobileMain = create("mobileMain") {
kotlin.srcDir("src/mobileMain/kotlin")
dependsOn(commonMain)
dependencies {
implementation(libs.androidx.data.store.core)
implementation(libs.androidx.room.runtime)
}
}
val androidMain by getting {
dependsOn(mobileMain)
....

val iosMain by getting {
dependsOn(mobileMain)

[jw]

Yeah that's the old, manual API that the hierarchy template was created to replace

[Fergus Hewson]

Ah ok, I'll take a look and see if I can update to what you did in mosaic.