Multiplatform Gradle configuration

Compose for desktop target build.gradle.kts

plugins {
  kotlin(Plugins.KotlinJvm)
  kotlin(Plugins.KotlinSerialization)
  id("org.jetbrains.compose") version "0.4.0"
}

repositories {
  jcenter()
  maven("https://maven.pkg.jetbrains.space/public/p/compose/dev")
}

kotlin {
  dependencies {
    implementation(project(":shared"))
    implementation(compose.desktop.currentOs)
    // ...
  }
}

compose.desktop {
  application { mainClass = "io.github.alexandrepiveteau.echo.samples.drawing.Main" }
}

JS target build.gradle.kts

plugins { kotlin(Plugins.KotlinJs) }

repositories {
  jcenter()
  mavenCentral()
}

dependencies {
  implementation(kotlin("stdlib-js"))

  implementation(project(":shared"))
  // JS-specific dependencies
}

kotlin { js(IR) { browser { binaries.executable() } } }

Shared module build.gradle.kts

plugins {
  kotlin(Plugins.KotlinMultiplatform)
  kotlin(Plugins.KotlinSerialization)
}

kotlin {
  jvm {
    compilations.all { kotlinOptions.jvmTarget = "1.8" }
    testRuns["test"].executionTask.configure { useJUnit() }
    withJava()
  }

  js(IR) { browser() }

  sourceSets { /**/ }
}

Top level build.gradle.kts

buildscript {
  repositories {
    mavenCentral()
    maven("https://maven.pkg.jetbrains.space/public/p/compose/dev")
  }
  dependencies {
    classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:${Versions.Kotlin}")
    classpath("org.jetbrains.kotlin:kotlin-serialization:${Versions.KotlinxSerialization}")
  }
}

allprojects {
  repositories {
    mavenCentral()
    maven("https://maven.pkg.jetbrains.space/public/p/compose/dev")
    maven("https://maven.pkg.jetbrains.space/public/p/ktor/eap")
  }
}