build: configure flavors for all modules

app/build.gradle.kts

@@ -14,8 +14,6 @@ plugins {
   id("androidx.navigation.safeargs.kotlin")
 }
 
-val flavorsAbis = arrayOf("arm64-v8a", "armeabi-v7a")
-
 android {
   namespace = BuildConfig.packageName
 
@@ -26,33 +24,6 @@ android {
 
   compileOptions { isCoreLibraryDesugaringEnabled = true }
 
-  flavorDimensions.add("default")
-  productFlavors {
-    flavorsAbis.forEach(this::create)
-
-    forEach {
-      defaultConfig.buildConfigField("String", "FLAVOR_${it.name.uppercase()}", "\"${it.name}\"")
-    }
-  }
-
-  splits {
-    abi {
-      reset()
-
-      isEnable = true
-      isUniversalApk = false
-
-      // TODO: Find a way to enable split APKs in product flavors. If this is possible, we can configure
-      //       each flavor to include only a single ABI. For example, for the 'arm64-v8a' flavor,
-      //       we can configure it to include only 'arm64-v8a' libraries. Size of APK can further be
-      //       reduced by 10-15MB once this is achieved.
-      //
-      //  See the contribution guidelines for more information.
-      @Suppress("ChromeOsAbiSupport")
-      include(*flavorsAbis)
-    }
-  }
-
   downloadSigningKey()
 
   // Keystore credentials

build.gradle.kts

@@ -19,6 +19,7 @@
 
 import com.android.build.gradle.BaseExtension
 import com.itsaky.androidide.plugins.AndroidIDEPlugin
+import com.vanniktech.maven.publish.AndroidMultiVariantLibrary
 import com.vanniktech.maven.publish.AndroidSingleVariantLibrary
 import com.vanniktech.maven.publish.GradlePlugin
 import com.vanniktech.maven.publish.JavaLibrary
@@ -45,6 +46,8 @@ buildscript {
   }
 }
 
+val flavorsAbis = arrayOf("arm64-v8a", "armeabi-v7a")
+
 fun Project.configureBaseExtension() {
   extensions.findByType(BaseExtension::class)?.run {
     compileSdkVersion(BuildConfig.compileSdk)
@@ -62,6 +65,42 @@ fun Project.configureBaseExtension() {
       targetCompatibility = BuildConfig.javaVersion
     }
 
+//    // ':common' module is configured to use product flavors as it uses the BuildConfig fields to
+//    // determine asset paths
+//    if (arrayOf(":app", ":common").contains(project.path)) {
+//    }
+    flavorDimensions("default")
+
+    productFlavors {
+      flavorsAbis.forEach(this::create)
+
+      forEach {
+        defaultConfig.buildConfigField("String",
+          "FLAVOR_${it.name.replace('-', '_').uppercase()}",
+          "\"${it.name}\"")
+      }
+    }
+
+    // configure split APKs for ':app' module only
+    if (this@configureBaseExtension == rootProject.findProject(":app")) {
+      splits {
+        abi {
+          reset()
+
+          isEnable = true
+          isUniversalApk = false
+
+          // TODO: Find a way to enable split APKs in product flavors. If this is possible, we can configure
+          //       each flavor to include only a single ABI. For example, for the 'arm64-v8a' flavor,
+          //       we can configure it to generate APK only for 'arm64-v8a'.
+          //
+          //  See the contribution guidelines for more information.
+          @Suppress("ChromeOsAbiSupport")
+          include(*flavorsAbis)
+        }
+      }
+    }
+
     buildTypes.getByName("debug") { isMinifyEnabled = false }
     buildTypes.getByName("release") {
       isMinifyEnabled = true
@@ -126,7 +165,7 @@ subprojects {
       signAllPublications()
 
       if (plugins.hasPlugin("com.android.library")) {
-        configure(AndroidSingleVariantLibrary())
+        configure(AndroidMultiVariantLibrary())
       } else if (plugins.hasPlugin("java-gradle-plugin")) {
         configure(GradlePlugin(javadocJar = JavadocJar.Javadoc()))
       } else if (plugins.hasPlugin("java-library")) {