Kotlin 2.0

androidApp/src/main/java/com/jithub/app/android/MainActivity.kt

@@ -42,13 +42,13 @@ class MainActivity : ComponentActivity() {
 }
 
 @Composable
-fun GreetingView(text: String) {
+fun GreetingView(text: String, modifier: Modifier = Modifier) {
   Text(text = text)
 }
 
 @Preview
 @Composable
-fun DefaultPreview() {
+private fun DefaultPreview() {
   AppTheme {
   }
 }

androidApp/src/main/res/drawable-v24/ic_launcher_foreground.xml

@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:aapt="http://schemas.android.com/aapt"
   android:width="108dp"

androidApp/src/main/res/values/strings.xml

@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
 <resources>
   <string name="app_name">kmp-app</string>
 </resources>

androidApp/src/main/res/values/styles.xml

@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
 <resources>
   <style name="AppTheme" parent="android:style/Theme.Material.Light.NoActionBar" />
 </resources>

androidApp/src/main/res/xml/data_extraction_rules.xml

@@ -1,11 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-
-<!--
-   Sample data extraction rules file; uncomment and customize as necessary.
-   See https://developer.android.com/about/versions/12/backup-restore#xml-changes
-   for details.
--->
-
 <data-extraction-rules>
   <cloud-backup>
     <exclude domain="root" />

build.gradle.kts

@@ -28,7 +28,8 @@ plugins {
   alias(libs.plugins.kotlin.cocoapods) apply false
   // alias(libs.plugins.jetbrains.compose) apply false
   alias(libs.plugins.compose.compiler) apply false
-  id("com.jithub.build.logic") apply false
+  alias(libs.plugins.spotless) apply false
+  id("com.jithub.build.logic")
 }
 
 allprojects {
@@ -46,6 +47,15 @@ allprojects {
   configureCommonKotlin()
 }
 
+subprojects {
+  apply(from = rootProject.file("spotless/spotless.gradle"))
+  afterEvaluate {
+    tasks.withType(JavaCompile::class.java) {
+      dependsOn(tasks.getByName("spotlessApply"))
+    }
+  }
+}
+
 gradle.taskGraph.whenReady {
   tasks.forEach {
     /* Encountering the “Unable to make progress running work” Error in Gradle? */

gradle.properties

@@ -24,9 +24,6 @@ kotlin.mpp.androidGradlePluginCompatibility.nowarn=true
 # https://kotl.in/issue
 kotlin.apple.xcodeCompatibility.nowarn=true
 
-# Kotlin code style for this project: "official" or "obsolete":
-kotlin.code.style=official
-
 # Android
 android.useAndroidX=true
 android.enableJetifier=true

gradle/libs.versions.toml

@@ -70,5 +70,7 @@ jetbrains-compose = { id = "org.jetbrains.compose", version.ref = "jbr-compose"
 
 compose-compiler = { id = "org.jetbrains.kotlin.plugin.compose", version.ref = "kotlin" }
 
+spotless = "com.diffplug.spotless:6.25.0"
+
 [bundles]
 asm = []

redwood/schema/src/main/kotlin/com/jithub/app/shared/redwood/schema.kt

@@ -21,9 +21,7 @@ import app.cash.redwood.schema.Widget
 interface Schema
 
 @Widget(2)
-data class Text(
-  @Property(1) val text: String?
-)
+data class Text(@Property(1) val text: String?)
 
 @Widget(3)
 data class Button(

shared/src/commonMain/kotlin/com/jithub/app/shared/Counter.kt

@@ -15,11 +15,7 @@ import com.jithub.app.shared.redwood.compose.Button
 import com.jithub.app.shared.redwood.compose.Text
 
 @Composable
-fun Counter(
-  modifier: Modifier = Modifier,
-  value: Int = 0,
-  labels: StringList? = StringList(listOf())
-) {
+fun Counter(modifier: Modifier = Modifier, value: Int = 0, labels: StringList? = StringList(listOf())) {
   var count by rememberSaveable { mutableIntStateOf(value) }
   Column(
     width = Constraint.Fill,

spotless/copyright.xml

@@ -0,0 +1 @@
+<?xml version="1.0" encoding="utf-8"?>

spotless/greclipse.properties

@@ -0,0 +1,6 @@
+org.eclipse.jdt.core.formatter.tabulation.char=space
+org.eclipse.jdt.core.formatter.tabulation.size=2
+org.eclipse.jdt.core.formatter.indentation.size=2
+groovy.formatter.longListLength=110
+# Remove unnecessary semicolons.
+groovy.formatter.remove.unnecessary.semicolons=true

spotless/spotless.gradle

@@ -0,0 +1,49 @@
+apply plugin: "com.diffplug.spotless"
+
+// https://github.com/pinterest/ktlint
+def ktlintVersion = "1.3.1"
+
+spotless {
+  java {
+    target '**/*.java'
+    targetExclude("**/build/**/*.java", "${rootProject.rootDir}/spotless/**")
+    toggleOffOn('@formatter:off', '@formatter:on')
+    // https://github.com/palantir/palantir-java-format
+    palantirJavaFormat("2.47.0").style("GOOGLE").formatJavadoc(true)
+    removeUnusedImports()
+  }
+
+  kotlin {
+    target "**/*.kt"
+    targetExclude("**/build/**/*.kt", "${rootProject.rootDir}/spotless/**")
+    ktlint(ktlintVersion).setEditorConfigPath(
+      "${rootProject.rootDir}/.editorconfig"
+    ).editorConfigOverride(
+      [
+        "android"                                          : "true",
+        "continuation_indent_size"                         : "2",
+        // Lowercase names are great for grouping multiple functions and/or types.
+        "ktlint_standard_filename"                         : "disabled",
+        // Making something an expression body should be a choice around readability.
+        "ktlint_standard_function-expression-body"         : "disabled",
+        "ktlint_function_naming_ignore_when_annotated_with": "Composable",
+        "ktlint_compose_compositionlocal-allowlist"        : "disabled"
+      ]
+    ).customRuleSets(
+      // https://github.com/mrmans0n/compose-rules
+      ["io.nlopez.compose.rules:ktlint:0.4.5"]
+    )
+  }
+
+  kotlinGradle {
+    target("**/*.gradle.kts")
+    ktlint(ktlintVersion).setEditorConfigPath("${rootProject.rootDir}/.editorconfig")
+  }
+
+  format("xml") {
+    target("**/*.xml")
+    targetExclude("**/build/**/*.xml", "**/lint-config/**/*.xml", "${rootProject.rootDir}/spotless/**")
+    // Look for the first XML tag that isn't a comment (<!--) or the xml declaration (<?xml)
+    licenseHeaderFile(rootProject.file("spotless/copyright.xml"), "(<[^!?])")
+  }
+}