Introduce coroutines platform to have all the dependencies aligned (K…

…otlin#2952)

* Introduce coroutines platform to have all the dependencies aligned

Fixes Kotlin#2865

build.gradle

@@ -2,20 +2,14 @@
  * Copyright 2016-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
  */
 
+
 import org.jetbrains.kotlin.gradle.plugin.KotlinPlatformType
 import org.jetbrains.kotlin.konan.target.HostManager
 import org.jetbrains.dokka.gradle.DokkaTaskPartial
 
-apply plugin: 'jdk-convention'
+import static Projects.*
 
-def coreModule = "kotlinx-coroutines-core"
-def testModule = "kotlinx-coroutines-test"
-def multiplatform = [coreModule, testModule]
-// Not applicable for Kotlin plugin
-def sourceless = ['kotlinx.coroutines', 'kotlinx-coroutines-bom', 'integration-testing']
-def internal = ['kotlinx.coroutines', 'benchmarks', 'integration-testing']
-// Not published
-def unpublished = internal + ['example-frontend-js', 'android-unit-tests']
+apply plugin: 'jdk-convention'
 
 buildscript {
     /*
@@ -160,6 +154,8 @@ configure(subprojects.findAll { !sourceless.contains(it.name) && it.name != core
     }
 }
 
+apply plugin: "bom-conventions"
+
 // Configure subprojects with Kotlin sources
 configure(subprojects.findAll { !sourceless.contains(it.name) }) {
     // Use atomicfu plugin, it also adds all the necessary dependencies

buildSrc/src/main/kotlin/Projects.kt

@@ -1,8 +1,20 @@
 /*
  * Copyright 2016-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
  */
-
+@file:JvmName("Projects")
 import org.gradle.api.Project
 
 fun Project.version(target: String): String =
     property("${target}_version") as String
+
+val coreModule = "kotlinx-coroutines-core"
+val testModule = "kotlinx-coroutines-test"
+
+val multiplatform = setOf(coreModule, testModule)
+// Not applicable for Kotlin plugin
+val sourceless = setOf("kotlinx.coroutines", "kotlinx-coroutines-bom", "integration-testing")
+val internal = setOf("kotlinx.coroutines", "benchmarks", "integration-testing")
+// Not published
+val unpublished = internal + setOf("example-frontend-js", "android-unit-tests")
+
+val Project.isMultiplatform: Boolean get() = name in multiplatform

buildSrc/src/main/kotlin/bom-conventions.gradle.kts

@@ -0,0 +1,19 @@
+/*
+ * Copyright 2016-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
+ */
+import org.gradle.kotlin.dsl.*
+import org.jetbrains.kotlin.gradle.dsl.*
+
+
+configure(subprojects.filter { it.name !in unpublished }) {
+    if (name == "kotlinx-coroutines-bom" || name == "kotlinx.coroutines") return@configure
+    if (isMultiplatform) {
+        kotlinExtension.sourceSets.getByName("jvmMain").dependencies {
+            api(project.dependencies.platform(project(":kotlinx-coroutines-bom")))
+        }
+    } else {
+        dependencies {
+            "api"(platform(project(":kotlinx-coroutines-bom")))
+        }
+    }
+}