For Kotlin Multimodule Multiplatform projects, how does one configure the plugin block? Currently doing it per sub project

plugins {
	val kotlinVersion = "1.4.10"
	kotlin("multiplatform") version kotlinVersion
	kotlin("plugin.serialization") version kotlinVersion
}

but it no longer compiles complaining that i'm redefining the Kotlin plugin i guess this now needs to move to the

allprojects {

block in the root build.gradle.kts i'm trying

allprojects {
  	plugins.apply(kotlin("multiplatform"))
}

but that's not compiling any ideas?

What you can do is define the version in the root project without applyting them:

//root/build.gradle.kts
plugins {
  kotlin("multiplatform").version("1.4.10").apply(false)
}

Then in your individual modules apply them without version:

//root/module/build.gradle.kts
plugins {
  kotlin("multiplatform")
}

that's nifty! i take it i can just apply(true) to have it applied to all submodules as well, all modules are Kotlin

plugins {
  kotlin("multiplatform")
}

is the same as

plugins {
  kotlin("multiplatform").apply(true)
}

is the plugin definition required in teh submodules if apply(true) is in the root ?

You don't want to

apply(true)

from the root project since there's no kotlin file to compile there

this is brilliant, you just saved me from having to redefine versions all over the place, thanks for this! can the same be done with dependencies ?

You can look into java platforms for dependencies

i see dependencies block works in allprojects, so i guess the answer is yes

Basically you define a "platform" module that centralizes all the different versions and that all your other modules depend on https://docs.gradle.org/current/userguide/java_platform_plugin.html

thanks for the help Martin!

you can use

allprojects {}

too

yeah, i've got a build.finished block which loops through all projects and it contains the root project which i currently have to exclude

gradle.buildFinished {

		allprojects.forEach { subproject ->
		val lib = "$buildDir/library/${project.name}-${subproject.name}"

subprojects might be a better solution here too thanks for the help Martin, this is going to make my KMMMP setup much cleaner 😄