Add ktlint convention plugin and integrate with build logic

- Create `KtlintConventionPlugin` to configure ktlint with version 1.8.0, console output enabled, and exclusion filters for generated/build directories.
- Register the new `ktlint` convention plugin in `build-logic/convention/build.gradle.kts`.
- Add a task dependency to automatically install the ktlint format git pre-commit hook during the `preBuild` stage.
- Apply the ktlint convention plugin to multiple existing plugins: `CmpFeature`, `CmpLibrary`, `KmpLibrary`, `AndroidApplication`, `AndroidApplicationCompose`, and `CmpApplication`.
- Update `libs.versions.toml` to include the `ktlint-gradle` plugin dependency.

Author: rainxchzed

build-logic/convention/build.gradle.kts

@@ -16,6 +16,8 @@ dependencies {
 
     implementation(libs.buildkonfig.gradlePlugin)
     implementation(libs.buildkonfig.compiler)
+
+    implementation(libs.ktlint.gradlePlugin)
 }
 
 java {
@@ -34,6 +36,11 @@ tasks {
         enableStricterValidation = true
         failOnWarning = true
     }
+    configureEach {
+        if (name == "preBuild") {
+            dependsOn("addKtlintFormatGitPreCommitHook")
+        }
+    }
 }
 
 gradlePlugin {
@@ -70,5 +77,9 @@ gradlePlugin {
             id = "zed.rainxch.convention.room"
             implementationClass = "RoomConventionPlugin"
         }
+        register("ktlint") {
+            id = "zed.rainxch.convention.ktlint"
+            implementationClass = "KtlintConventionPlugin"
+        }
     }
 }

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

@@ -10,6 +10,7 @@ class AndroidApplicationComposeConventionPlugin : Plugin<Project> {
             with(pluginManager) {
                 apply("zed.rainxch.convention.android.application")
                 apply("org.jetbrains.kotlin.plugin.compose")
+                apply("zed.rainxch.convention.ktlint")
             }
 
             val commonExtension = extensions.getByType<ApplicationExtension>()

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

@@ -10,6 +10,7 @@ class AndroidApplicationConventionPlugin : Plugin<Project> {
         with(target) {
             with(pluginManager) {
                 apply("com.android.application")
+                apply("zed.rainxch.convention.ktlint")
             }
 
             extensions.configure<ApplicationExtension> {

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

@@ -13,6 +13,7 @@ class CmpApplicationConventionPlugin : Plugin<Project> {
                 apply("org.jetbrains.kotlin.multiplatform")
                 apply("org.jetbrains.compose")
                 apply("org.jetbrains.kotlin.plugin.compose")
+                apply("zed.rainxch.convention.ktlint")
             }
 
             configureAndroidTarget()

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

@@ -8,6 +8,7 @@ class CmpFeatureConventionPlugin : Plugin<Project> {
         with(target) {
             with(pluginManager) {
                 apply("zed.rainxch.convention.cmp.library")
+                apply("zed.rainxch.convention.ktlint")
             }
 
             dependencies {

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

@@ -11,6 +11,7 @@ class CmpLibraryConventionPlugin : Plugin<Project> {
                 apply("zed.rainxch.convention.kmp.library")
                 apply("org.jetbrains.kotlin.plugin.compose")
                 apply("org.jetbrains.compose")
+                apply("zed.rainxch.convention.ktlint")
             }
 
             dependencies {

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

@@ -15,6 +15,7 @@ class KmpLibraryConventionPlugin : Plugin<Project> {
                 apply("com.android.library")
                 apply("org.jetbrains.kotlin.multiplatform")
                 apply("org.jetbrains.kotlin.plugin.serialization")
+                apply("zed.rainxch.convention.ktlint")
             }
 
             configureKotlinMultiplatform()

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

@@ -0,0 +1,21 @@
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+import org.jlleitschuh.gradle.ktlint.KtlintExtension
+
+class KtlintConventionPlugin : Plugin<Project> {
+    override fun apply(target: Project) {
+        with(target) {
+            pluginManager.apply("org.jlleitschuh.gradle.ktlint")
+
+            extensions.configure(KtlintExtension::class.java) {
+                version.set("1.8.0")
+                outputToConsole.set(true)
+                ignoreFailures.set(false)
+                filter {
+                    exclude("**/generated/**")
+                    exclude("**/build/**")
+                }
+            }
+        }
+    }
+}

gradle/libs.versions.toml

@@ -44,6 +44,8 @@ jsystemthemedetector = "3.9.1"
 work = "2.11.1"
 resources="1.10.1"
 
+ktlint-gradle = "12.1.1"
+
 projectApplicationId = "zed.rainxch.githubstore"
 projectVersionName = "1.6.2"
 projectMinSdkVersion = "26"
@@ -148,6 +150,8 @@ androidx-work-runtime = { module = "androidx.work:work-runtime-ktx", version.ref
 # Liquid effect
 liquid = { module = "io.github.fletchmckee.liquid:liquid", version.ref = "liquid" }
 
+ktlint-gradlePlugin = { group = "org.jlleitschuh.gradle", name="ktlint-gradle", version.ref = "ktlint-gradle" }
+
 [plugins]
 
 convention-cmp-application = { id = "zed.rainxch.convention.cmp.application", version = "unspecified" }