Enable project isolation

Fixes https://github.com/android/nowinandroid/issues/1842

.github/workflows/Build.yaml

@@ -47,9 +47,6 @@ jobs:
       - name: Check build-logic
         run: ./gradlew :build-logic:convention:check
 
-      - name: Check spotless
-        run: ./gradlew spotlessCheck --init-script gradle/init.gradle.kts --no-configuration-cache
-
       - name: Check Dependency Guard
         id: dependencyguard_verify
         continue-on-error: true

build-logic/convention/src/main/kotlin/RootPlugin.kt

@@ -17,10 +17,16 @@
 import com.google.samples.apps.nowinandroid.configureGraphTasks
 import org.gradle.api.Plugin
 import org.gradle.api.Project
+import org.gradle.api.configuration.BuildFeatures
+import javax.inject.Inject
+
+abstract class RootPlugin : Plugin<Project> {
+    @get:Inject abstract val buildFeatures: BuildFeatures
 
-class RootPlugin : Plugin<Project> {
     override fun apply(target: Project) {
         require(target.path == ":")
-        target.subprojects { configureGraphTasks() }
+        if (!buildFeatures.isolatedProjects.active.orElse(false).get()) {
+            target.subprojects { configureGraphTasks() }
+        }
     }
 }

gradle.properties

@@ -17,7 +17,7 @@
 # - CodeCache normally defaults to a very small size. Increasing it from platform defaults of 32-48m
 #   because of how many classes can be loaded into memory and then cached as native compiled code
 #   for a small speed boost.
-org.gradle.jvmargs=-Dfile.encoding=UTF-8 -XX:+UseG1GC -XX:SoftRefLRUPolicyMSPerMB=1 -XX:ReservedCodeCacheSize=256m -XX:+HeapDumpOnOutOfMemoryError -Xmx4g -Xms4g
+org.gradle.jvmargs=-Dfile.encoding=UTF-8 -XX:+UseG1GC -XX:SoftRefLRUPolicyMSPerMB=1 -XX:ReservedCodeCacheSize=256m -XX:+HeapDumpOnOutOfMemoryError -Xmx4g -Xms4g -Dorg.gradle.internal.isolated-projects.parallel=false
 
 # For more information about how Kotlin Daemon memory options were chosen:
 # - Kotlin JVM args only inherit Xmx, ReservedCodeCache, and MaxMetaspace. Since we are specifying
@@ -44,6 +44,8 @@ org.gradle.configuration-cache.parallel=true
 # to generate the Configuration Cache regardless of incompatible tasks.
 # See https://github.com/android/nowinandroid/issues/1022 before using it.
 org.gradle.configuration-cache.problems=warn
+org.gradle.unsafe.isolated-projects=true
+ksp.project.isolation.enabled=true
 
 # AndroidX package structure to make it clearer which packages are bundled with the
 # Android operating system, and which are packaged with your app"s APK