Fix multiplatform projects in IDEA / Android Studio

Fixes:
- https://github.com/JetBrains/compose-jb/issues/21
We need to move buildscript from settings.gradle.kts to build.gradle.kts
See also https://youtrack.jetbrains.com/issue/KT-36331

- https://github.com/JetBrains/compose-jb/issues/22
kotlin("jvm") plugin doesn't work well with MPP modules.
To fix this issue we need to use kotlin("multiplatform") even if we targeting single platform.
See also https://youtrack.jetbrains.com/issue/KT-42823

examples/imageviewer/build.gradle.kts

@@ -1,3 +1,17 @@
+buildscript {
+    repositories {
+        google()
+        jcenter()
+        maven("https://maven.pkg.jetbrains.space/public/p/compose/dev")
+    }
+
+    dependencies {
+        classpath("org.jetbrains.compose:compose-gradle-plugin:0.1.0-dev97")
+        classpath("com.android.tools.build:gradle:4.0.1")
+        classpath(kotlin("gradle-plugin", version = "1.4.0"))
+    }
+}
+
 allprojects {
     repositories {
         mavenLocal()

examples/imageviewer/desktop/build.gradle.kts

@@ -1,15 +1,24 @@
 import org.jetbrains.compose.compose
 
 plugins {
-    kotlin("jvm")
+    kotlin("multiplatform")
     id("org.jetbrains.compose")
     java
     application
 }
 
-dependencies {
-    implementation(compose.desktop.all)
-    implementation(project(":common"))
+kotlin {
+    jvm {
+        withJava()
+    }
+    sourceSets {
+        named("jvmMain") {
+            dependencies {
+                implementation(compose.desktop.all)
+                implementation(project(":common"))
+            }
+        }
+    }
 }
 
 application {

examples/imageviewer/settings.gradle.kts

@@ -1,15 +1 @@
-buildscript {
-    repositories {
-        google()
-        jcenter()
-        maven("https://maven.pkg.jetbrains.space/public/p/compose/dev")
-    }
-
-    dependencies {
-        classpath("org.jetbrains.compose:compose-gradle-plugin:0.1.0-dev97")
-        classpath("com.android.tools.build:gradle:4.0.1")
-        classpath(kotlin("gradle-plugin", version = "1.4.0"))
-    }
-}
-
 include(":common", ":android", ":desktop")

examples/issues/build.gradle.kts

@@ -1,3 +1,17 @@
+buildscript {
+    repositories {
+        google()
+        jcenter()
+        maven("https://maven.pkg.jetbrains.space/public/p/compose/dev")
+    }
+
+    dependencies {
+        classpath("org.jetbrains.compose:compose-gradle-plugin:0.1.0-dev97")
+        classpath("com.android.tools.build:gradle:4.0.1")
+        classpath(kotlin("gradle-plugin", version = "1.4.0"))
+    }
+}
+
 allprojects {
     repositories {
         mavenLocal()

examples/issues/desktop/build.gradle.kts

@@ -1,15 +1,24 @@
 import org.jetbrains.compose.compose
 
 plugins {
-    kotlin("jvm")
+    kotlin("multiplatform")
     id("org.jetbrains.compose")
     java
     application
 }
 
-dependencies {
-    implementation(compose.desktop.all)
-    implementation(project(":common"))
+kotlin {
+    jvm {
+        withJava()
+    }
+    sourceSets {
+        named("jvmMain") {
+            dependencies {
+                implementation(compose.desktop.all)
+                implementation(project(":common"))
+            }
+        }
+    }
 }
 
 application {

examples/issues/settings.gradle.kts

@@ -1,15 +1 @@
-buildscript {
-    repositories {
-        google()
-        jcenter()
-        maven("https://maven.pkg.jetbrains.space/public/p/compose/dev")
-    }
-
-    dependencies {
-        classpath("org.jetbrains.compose:compose-gradle-plugin:0.1.0-dev97")
-        classpath("com.android.tools.build:gradle:4.0.1")
-        classpath(kotlin("gradle-plugin", version = "1.4.0"))
-    }
-}
-
 include(":common", ":android", ":desktop")

examples/todoapp/desktop/build.gradle.kts

@@ -1,22 +1,32 @@
 import org.jetbrains.compose.compose
 
 plugins {
-    kotlin("jvm")
+    kotlin("multiplatform")
     id("org.jetbrains.compose")
     java
     application
 }
 
-dependencies {
-    implementation(compose.desktop.all)
-    implementation(project(":common:utils"))
-    implementation(project(":common:database"))
-    implementation(project(":common:root"))
-    implementation(Deps.ArkIvanov.Decompose.decompose)
-    implementation(Deps.ArkIvanov.MVIKotlin.mvikotlin)
-    implementation(Deps.ArkIvanov.MVIKotlin.mvikotlinMain)
-    implementation(Deps.Badoo.Reaktive.reaktive)
-    implementation(Deps.Badoo.Reaktive.coroutinesInterop)
+kotlin {
+    jvm {
+        withJava()
+    }
+
+    sourceSets {
+        named("jvmMain") {
+            dependencies {
+                implementation(compose.desktop.all)
+                implementation(project(":common:utils"))
+                implementation(project(":common:database"))
+                implementation(project(":common:root"))
+                implementation(Deps.ArkIvanov.Decompose.decompose)
+                implementation(Deps.ArkIvanov.MVIKotlin.mvikotlin)
+                implementation(Deps.ArkIvanov.MVIKotlin.mvikotlinMain)
+                implementation(Deps.Badoo.Reaktive.reaktive)
+                implementation(Deps.Badoo.Reaktive.coroutinesInterop)
+            }
+        }
+    }
 }
 
 application {

templates/multiplatform-template/build.gradle.kts

@@ -1,3 +1,19 @@
+buildscript {
+    val composeVersion = System.getenv("COMPOSE_TEMPLATE_COMPOSE_VERSION") ?: "0.1.0-dev97"
+
+    repositories {
+        google()
+        jcenter()
+        maven("https://maven.pkg.jetbrains.space/public/p/compose/dev")
+    }
+
+    dependencies {
+        classpath("org.jetbrains.compose:compose-gradle-plugin:$composeVersion")
+        classpath("com.android.tools.build:gradle:4.0.1")
+        classpath(kotlin("gradle-plugin", version = "1.4.0"))
+    }
+}
+
 allprojects {
     repositories {
         google()

templates/multiplatform-template/desktop/build.gradle.kts

@@ -1,15 +1,24 @@
 import org.jetbrains.compose.compose
 
 plugins {
-    kotlin("jvm")
+    kotlin("multiplatform")
     id("org.jetbrains.compose")
     java
     application
 }
 
-dependencies {
-    implementation(compose.desktop.all)
-    implementation(project(":common"))
+kotlin {
+    jvm {
+        withJava()
+    }
+    sourceSets {
+        named("jvmMain") {
+            dependencies {
+                implementation(compose.desktop.all)
+                implementation(project(":common"))
+            }
+        }
+    }
 }
 
 application {

templates/multiplatform-template/settings.gradle.kts

@@ -1,17 +1 @@
-buildscript {
-    val composeVersion = System.getenv("COMPOSE_TEMPLATE_COMPOSE_VERSION") ?: "0.1.0-dev97"
-
-    repositories {
-        google()
-        jcenter()
-        maven("https://maven.pkg.jetbrains.space/public/p/compose/dev")
-    }
-
-    dependencies {
-        classpath("org.jetbrains.compose:compose-gradle-plugin:$composeVersion")
-        classpath("com.android.tools.build:gradle:4.0.1")
-        classpath(kotlin("gradle-plugin", version = "1.4.0"))
-    }
-}
-
 include(":common", ":android", ":desktop")