added ktlint

app/build.gradle.kts

@@ -12,6 +12,8 @@ plugins {
     id("kotlin-parcelize")
 }
 
+apply(from = "../ktlint.gradle.kts")
+
 android {
     compileSdk = 30
     buildToolsVersion = "30.0.3"

install-git-hook.gradle

@@ -0,0 +1,7 @@
+
+task installGitHook(type: Copy) {
+    from new File(rootProject.rootDir, 'pre-commit')
+    into { new File(rootProject.rootDir, '.git/hooks') }
+    fileMode 0777
+}
+preBuild.dependsOn installGitHook

ktlint.gradle.kts

@@ -0,0 +1,28 @@
+val ktlint: Configuration by configurations.creating
+
+dependencies {
+    ktlint("com.pinterest:ktlint:0.41.0")
+    // additional 3rd party ruleset(s) can be specified here
+    // just add them to the classpath (e.g. ktlint 'groupId:artifactId:version') and
+    // ktlint will pick them up
+}
+
+tasks.register<JavaExec>("ktlint") {
+    group = "verification"
+    description = "Check Kotlin code style."
+    classpath = ktlint
+    main = "com.pinterest.ktlint.Main"
+    args("src/**/*.kt")
+}
+
+tasks.named("check") {
+    dependsOn(ktlint)
+}
+
+tasks.register<JavaExec>("ktlintFormat") {
+    group = "formatting"
+    description = "Fix Kotlin code style deviations."
+    classpath = ktlint
+    main = "com.pinterest.ktlint.Main"
+    args("-F", "src/**/*.kt")
+}

pre-commit

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+echo "Running git pre-commit hook"
+
+./gradlew ktlintFormat
+
+RESULT=$?
+
+# return 1 exit code if running checks fails
+[ $RESULT -ne 0 ] && exit 1
+exit 0