Add spotless (with ktlint) (#1136)

.github/workflows/build_pull_request.yml

@@ -38,7 +38,7 @@ jobs:
         uses: gradle/actions/setup-gradle@af1da67850ed9a4cedd57bfd976089dd991e2582 # v4.0.0
 
       - name: Build app and run unit tests
-        run: ./gradlew assembleStandardRelease testReleaseUnitTest testStandardReleaseUnitTest
+        run: ./gradlew spotlessCheck assembleStandardRelease testReleaseUnitTest testStandardReleaseUnitTest
 
       - name: Upload APK
         uses: actions/upload-artifact@v4

.github/workflows/build_push.yml

@@ -36,7 +36,7 @@ jobs:
         uses: gradle/actions/setup-gradle@af1da67850ed9a4cedd57bfd976089dd991e2582 # v4.0.0
 
       - name: Build app and run unit tests
-        run: ./gradlew assembleStandardRelease testReleaseUnitTest testStandardReleaseUnitTest
+        run: ./gradlew spotlessCheck assembleStandardRelease testReleaseUnitTest testStandardReleaseUnitTest
 
       - name: Upload APK
         uses: actions/upload-artifact@v4

buildSrc/build.gradle.kts

@@ -6,6 +6,7 @@ dependencies {
     implementation(androidx.gradle)
     implementation(kotlinx.gradle)
     implementation(kotlinx.compose.compiler.gradle)
+    implementation(libs.spotless.gradle)
     implementation(gradleApi())
 
     implementation(files(libs.javaClass.superclass.protectionDomain.codeSource.location))

buildSrc/src/main/kotlin/mihon.android.application.compose.gradle.kts

@@ -3,6 +3,8 @@ import mihon.buildlogic.configureCompose
 plugins {
     id("com.android.application")
     kotlin("android")
+
+    id("mihon.code.lint")
 }
 
 android {

buildSrc/src/main/kotlin/mihon.android.application.gradle.kts

@@ -5,6 +5,8 @@ import mihon.buildlogic.configureTest
 plugins {
     id("com.android.application")
     kotlin("android")
+
+    id("mihon.code.lint")
 }
 
 android {

buildSrc/src/main/kotlin/mihon.benchmark.gradle.kts

@@ -4,6 +4,8 @@ import mihon.buildlogic.configureTest
 plugins {
     id("com.android.test")
     kotlin("android")
+
+    id("mihon.code.lint")
 }
 
 android {

buildSrc/src/main/kotlin/mihon.code.lint.gradle.kts

@@ -0,0 +1,30 @@
+import org.gradle.accessors.dm.LibrariesForLibs
+
+plugins {
+    id("com.diffplug.spotless")
+}
+
+val libs = the<LibrariesForLibs>()
+
+spotless {
+    kotlin {
+        target("**/*.kt", "**/*.kts")
+        targetExclude("**/build/**/*.kt")
+        ktlint(libs.ktlint.core.get().version)
+            .editorConfigOverride(mapOf(
+                "ktlint_function_naming_ignore_when_annotated_with" to "Composable",
+                "ktlint_standard_class-signature" to "disabled",
+                "ktlint_standard_discouraged-comment-location" to "disabled",
+                "ktlint_standard_function-expression-body" to "disabled",
+                "ktlint_standard_function-signature" to "disabled",
+            ))
+        trimTrailingWhitespace()
+        endWithNewline()
+    }
+    format("xml") {
+        target("**/*.xml")
+        targetExclude("**/build/**/*.xml")
+        trimTrailingWhitespace()
+        endWithNewline()
+    }
+}

buildSrc/src/main/kotlin/mihon.library.compose.gradle.kts

@@ -2,6 +2,8 @@ import mihon.buildlogic.configureCompose
 
 plugins {
     id("com.android.library")
+
+    id("mihon.code.lint")
 }
 
 android {

buildSrc/src/main/kotlin/mihon.library.gradle.kts

@@ -3,6 +3,8 @@ import mihon.buildlogic.configureTest
 
 plugins {
     id("com.android.library")
+
+    id("mihon.code.lint")
 }
 
 android {

gradle/libs.versions.toml

@@ -8,6 +8,8 @@ shizuku_version = "12.2.0"
 sqldelight = "2.0.2"
 sqlite = "2.4.0"
 voyager = "1.0.0"
+spotless = "6.25.0"
+ktlint-core = "1.3.1"
 
 [libraries]
 desugar = "com.android.tools:desugar_jdk_libs:2.0.4"
@@ -96,6 +98,9 @@ voyager-screenmodel = { module = "cafe.adriel.voyager:voyager-screenmodel", vers
 voyager-tab-navigator = { module = "cafe.adriel.voyager:voyager-tab-navigator", version.ref = "voyager" }
 voyager-transitions = { module = "cafe.adriel.voyager:voyager-transitions", version.ref = "voyager" }
 
+spotless-gradle = { group = "com.diffplug.spotless", name = "spotless-plugin-gradle", version.ref = "spotless" }
+ktlint-core = { module = "com.pinterest.ktlint:ktlint-cli", version.ref = "ktlint-core" }
+
 [bundles]
 okhttp = ["okhttp-core", "okhttp-logging", "okhttp-brotli", "okhttp-dnsoverhttps"]
 js-engine = ["quickjs-android"]