feat: Add ktlint to project

.editorconfig

@@ -0,0 +1,20 @@
+# Kotlin Ktlint
+root = true
+
+[*.{kt,kts}]
+
+ktlint_code_style = android_studio
+
+ktlint_standard_no-wildcard-imports = disabled
+ktlint_standard_no-empty-first-line-in-class-body = disabled
+ktlint_standard_no-line-break-before-assignment = disabled
+ktlint_standard_multiline-expression-wrapping = disabled
+ktlint_standard_string-template-indent = disabled
+ktlint_standard_trailing-comma-on-call-site = disabled
+ktlint_standard_trailing-comma-on-declaration-site = disabled
+ktlint_standard_no-empty-first-line-in-method-block = disabled
+ktlint_standard_expression-body-wrapping = disabled
+ktlint_standard_function-signature = disabled
+ktlint_standard_spacing-between-declarations-with-annotations = disabled
+
+max_line_length = 130

.github/workflows/android.yml

@@ -8,7 +8,25 @@
   cancel-in-progress: true
 
 jobs:
+
+  ktlint:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout the code
+      uses: actions/checkout@v2
+    - name: Set up JDK 11
+      uses: actions/setup-java@v1
+      with:
+        java-version: 11
+
+    - name: Install ktlint
+      run: curl -sSLO https://github.com/pinterest/ktlint/releases/download/1.7.1/ktlint && chmod a+x ktlint
+
+    - name: Run ktlint
+      run: ./ktlint 'src/**/*.kt' --baseline=config/ktlint/baseline.xml
+
   instrumentation-tests:
     if: github.event.pull_request.draft == false
     runs-on: [ self-hosted, Android ]
 

build.gradle.kts

@@ -1,4 +1,5 @@
-// Top-level build file where you can add configuration options common to all sub-projects/modules.
+import org.jlleitschuh.gradle.ktlint.reporter.ReporterType
+
 buildscript {
 
     extra.apply {
@@ -25,6 +26,21 @@ plugins {
     alias(core.plugins.dagger.hilt) apply false
     alias(core.plugins.ksp) apply false
     alias(core.plugins.navigation.safeargs) apply false
+    alias(core.plugins.ktlint)
+}
+
+ktlint {
+    version.set("1.7.1")
+    android.set(true)
+    ignoreFailures.set(false)
+    reporters {
+        reporter(ReporterType.PLAIN)
+    }
+    baseline.set(file("${projectDir}/config/ktlint/baseline.xml"))
+}
+
+subprojects {
+    apply(plugin = "org.jlleitschuh.gradle.ktlint")
 }
 
 tasks.register<Delete>("clean") {

config/ktlint/baseline.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<baseline version="1.0">
+    <file name="build.gradle.kts">
+        <error line="39" column="25" source="standard:string-template" />
+    </file>
+</baseline>

gradle/libs.versions.toml

@@ -62,5 +62,6 @@ junit-jupiter-engine = { module = "org.junit.jupiter:junit-jupiter-engine", vers
 junit5 = { id = "de.mannodermaus.android-junit5" }
 kotlin-android = { id = "kotlin-android" }
 kotlin-kapt = { id = "kotlin-kapt" }
+ktlint = { id = "org.jlleitschuh.gradle.ktlint" }
 navigation-safeargs = { id = "androidx.navigation.safeargs.kotlin" }
 realm-android = { id = "realm-android" }