Add Android library build plugin

.editorconfig

@@ -9,5 +9,5 @@ insert_final_newline = true
 [*.{kt,kts}]
 ij_kotlin_imports_layout = *,^*
 
-[*.{yml,yaml,json}]
+[*.{yml,yaml,json,toml}]
 indent_size = 2

build-plugin/build.gradle.kts

@@ -6,12 +6,12 @@ dependencies {
     implementation(files(libs.javaClass.superclass.protectionDomain.codeSource.location))
 
     implementation(plugin(libs.plugins.kotlin.jvm))
-
-    implementation(plugin(libs.plugins.spotless))
-
     implementation(plugin(libs.plugins.kotlin.android))
 
     implementation(plugin(libs.plugins.android.application))
+    implementation(plugin(libs.plugins.android.library))
+
+    implementation(plugin(libs.plugins.spotless))
 }
 
 fun plugin(provider: Provider<PluginDependency>) = with(provider.get()) {

build-plugin/src/main/kotlin/AndroidExtension.kt

@@ -0,0 +1,33 @@
+import com.android.build.api.dsl.CommonExtension
+
+fun CommonExtension<*, *, *, *>.configureSharedConfig() {
+    compileSdk = ThunderbirdProjectConfig.androidSdkCompile
+
+    defaultConfig {
+        compileSdk = ThunderbirdProjectConfig.androidSdkCompile
+        minSdk = ThunderbirdProjectConfig.androidSdkMin
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        vectorDrawables.useSupportLibrary = true
+    }
+
+    buildFeatures {
+        buildConfig = true
+    }
+
+    compileOptions {
+        sourceCompatibility = ThunderbirdProjectConfig.javaVersion
+        targetCompatibility = ThunderbirdProjectConfig.javaVersion
+    }
+
+    lint {
+        checkDependencies = true
+        abortOnError = false
+    }
+
+    testOptions {
+        unitTests {
+            isIncludeAndroidResources = true
+        }
+    }
+}

build-plugin/src/main/kotlin/ThunderbirdPlugins.kt

@@ -5,5 +5,6 @@ object ThunderbirdPlugins {
     }
     object Library {
         const val jvm = "thunderbird.library.jvm"
+        const val android = "thunderbird.library.android"
     }
 }

build-plugin/src/main/kotlin/thunderbird.app.android.default.gradle.kts

@@ -4,25 +4,14 @@ plugins {
 }
 
 android {
-    compileSdk = ThunderbirdProjectConfig.androidSdkCompile
+    configureSharedConfig()
 
     defaultConfig {
-        minSdk = ThunderbirdProjectConfig.androidSdkMin
         targetSdk = ThunderbirdProjectConfig.androidSdkTarget
-
-        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
-        vectorDrawables.useSupportLibrary = true
-    }
-
-    buildFeatures {
-        buildConfig = true
     }
 
     compileOptions {
         isCoreLibraryDesugaringEnabled = true
-
-        sourceCompatibility = ThunderbirdProjectConfig.javaVersion
-        targetCompatibility = ThunderbirdProjectConfig.javaVersion
     }
 
     kotlinOptions {
@@ -30,18 +19,9 @@ android {
     }
 
     lint {
-        checkDependencies = true
-
-        abortOnError = false
         lintConfig = file("${rootProject.projectDir}/config/lint/lint.xml")
     }
 
-    testOptions {
-        unitTests {
-            isIncludeAndroidResources = true
-        }
-    }
-
     dependenciesInfo {
         includeInApk = false
         includeInBundle = false

build-plugin/src/main/kotlin/thunderbird.library.android.gradle.kts

@@ -0,0 +1,26 @@
+plugins {
+    id("com.android.library")
+    id("org.jetbrains.kotlin.android")
+}
+
+android {
+    configureSharedConfig()
+
+    kotlinOptions {
+        jvmTarget = ThunderbirdProjectConfig.javaVersion.toString()
+    }
+
+    lint {
+        lintConfig = file("${rootProject.projectDir}/config/lint/lint.xml")
+    }
+
+    testOptions {
+        unitTests {
+            isIncludeAndroidResources = true
+        }
+    }
+}
+
+dependencies {
+    testImplementation(libs.bundles.shared.jvm.test)
+}

gradle/libs.versions.toml

@@ -134,4 +134,6 @@ shared-jvm-test = [
   "truth",
   "mockito-inline",
   "mockito-kotlin",
+  "koin-test",
+  "koin-test-junit4",
 ]