Extract application build setup to plugin

build-logic/convention/.gitignore

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+/build
+

build-logic/convention/build.gradle.kts

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+plugins {
+    `kotlin-dsl`
+}
+
+group = "gq.kirmanak.mealient.buildlogic"
+
+dependencies {
+    implementation(libs.jetbrains.kotlinPlugin)
+    implementation(libs.android.gradlePlugin)
+}
+
+gradlePlugin {
+    plugins {
+        register("androidApplication") {
+            id = "gq.kirmanak.mealient.application"
+            implementationClass = "AndroidApplicationConventionPlugin"
+        }
+    }
+}

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

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+import com.android.build.gradle.internal.dsl.BaseAppModuleExtension
+import gq.kirmanak.mealient.Versions
+import gq.kirmanak.mealient.configureKotlinAndroid
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+import org.gradle.kotlin.dsl.configure
+
+class AndroidApplicationConventionPlugin : Plugin<Project> {
+
+    override fun apply(target: Project) {
+        with(target) {
+            with(pluginManager) {
+                apply("com.android.application")
+                apply("org.jetbrains.kotlin.android")
+            }
+
+            extensions.configure<BaseAppModuleExtension> {
+                configureKotlinAndroid(this)
+                defaultConfig.targetSdk = Versions.TARGET_SDK_VERSION
+            }
+        }
+    }
+}

build-logic/convention/src/main/kotlin/gq/kirmanak/mealient/KotlinAndroid.kt

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+@file:Suppress("UnstableApiUsage")
+
+package gq.kirmanak.mealient
+
+import com.android.build.api.dsl.CommonExtension
+import org.gradle.api.Project
+import org.gradle.api.plugins.ExtensionAware
+import org.gradle.kotlin.dsl.dependencies
+import org.jetbrains.kotlin.gradle.dsl.KotlinJvmOptions
+
+internal fun Project.configureKotlinAndroid(
+    commonExtension: CommonExtension<*, *, *, *>,
+) {
+    commonExtension.apply {
+        compileSdk = Versions.COMPILE_SDK_VERSION
+
+        defaultConfig {
+            minSdk = Versions.MIN_SDK_VERSION
+        }
+
+        compileOptions {
+            isCoreLibraryDesugaringEnabled = true
+        }
+
+        kotlinOptions {
+            freeCompilerArgs = freeCompilerArgs + listOf("-opt-in=kotlin.RequiresOptIn")
+        }
+
+        dependencies {
+            add("coreLibraryDesugaring", libs.findLibrary("android-tools-desugar").get())
+        }
+    }
+}
+
+fun CommonExtension<*, *, *, *>.kotlinOptions(block: KotlinJvmOptions.() -> Unit) {
+    (this as ExtensionAware).extensions.configure("kotlinOptions", block)
+}

build-logic/convention/src/main/kotlin/gq/kirmanak/mealient/Versions.kt

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+package gq.kirmanak.mealient
+
+import org.gradle.api.Project
+import org.gradle.api.artifacts.VersionCatalog
+import org.gradle.api.artifacts.VersionCatalogsExtension
+import org.gradle.kotlin.dsl.getByType
+
+object Versions {
+    const val MIN_SDK_VERSION = 23
+    const val TARGET_SDK_VERSION = 32
+    const val COMPILE_SDK_VERSION = 32
+}
+
+val Project.libs: VersionCatalog
+    get() = extensions.getByType<VersionCatalogsExtension>().named("libs")

build-logic/gradle.properties

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+# Gradle properties are not passed to included builds https://github.com/gradle/gradle/issues/2534
+org.gradle.parallel=true
+org.gradle.caching=true
+org.gradle.configureondemand=true

build-logic/settings.gradle.kts

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+@file:Suppress("UnstableApiUsage")
+
+dependencyResolutionManagement {
+    repositories {
+        google()
+        mavenCentral()
+    }
+    versionCatalogs {
+        create("libs") {
+            from(files("../gradle/libs.versions.toml"))
+        }
+    }
+}
+
+include(":convention")