Hello everyone!! I was wondering, is there any way I can create a “Pure Kotlin” module? That is a mu...

# multiplatform

[Vinícius Santos]

Hello everyone!!
I was wondering, is there any way I can create a “Pure Kotlin” module?
That is a multiplatform module, that contains only kotlin code, without Ios, Android or even JVM source sets.
The main goal is to avoid unnecessary configuration overhead caused by the android library plugin

[mbonnin]

Android can consume JVM libraries. If you don't need anything Android (resources, Context, etc...) then you can skip the Android plugin and publish a Java8 .jar

[mbonnin]

Use org.jetbrain.kotlin.multiplatform with a jvm() target (and iOS, etc...) and put all your code in commonMain

[Vinícius Santos]

Yeah I gess that will do the trick, thank you!

[Vinícius Santos]

It would also be possible to configure a module without any source set at all ?
So I could import it inside another multiplatform module.

[mbonnin]

Not sure I'm following here. As soon as you add targets, the Kotlin Gradle Plugin will create source sets automatically

[mbonnin]

(commonMain is a sourceSet, you'll always have this one)

[Jacob Ras]

I think what you mean is without a target, not without a sourceSet 🙂

[Vinícius Santos]

Oh I see, what I mean is something like this.

plugins {
    kotlin("multiplatform")
}

kotlin {
    sourceSets {
        val commonMain by getting {
            dependencies {

            }
        }
        val commonTest by getting {
            dependencies {

            }
        }
    }
}

[mbonnin]

You always need a target. KGP will complain else

[mbonnin]

Targets define what is published/exported from your module, if you add none, nothing will be published/exported

[ephemient]

currently it is not possible to publish a backend-agnostic klib, you must target each possible consuming platform (except that Android can consume JVM publications)

[ephemient]

https://youtrack.jetbrains.com/issue/KT-52666/Kotlin-Multiplatform-libraries-without-platform-specific-code-a.k.a.-Pure-Kotlin-libraries-Universal-libraries

[Vinícius Santos]

Okay, I think now I got It, thank you all for the help!!