build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    apply from: 'versions.gradle'
    ext {
        kotlin_version = '1.3.71'
    }

    repositories {
        google()
        jcenter()
        maven { url 'https://jitpack.io' }
    }
    dependencies {
        classpath "com.android.tools.build:gradle:$versions.android_gradle_plugin"
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        maven { url 'https://jitpack.io' }
    }
    gradle.projectsEvaluated {
        tasks.withType(JavaCompile) {
            options.compilerArgs << "-Xlint:unchecked" << "-Xlint:deprecation"
        }
    }

    tasks.withType(Javadoc) {
        options.addStringOption('Xdoclint:none', '-quiet')
        options.addStringOption('encoding', 'UTF-8')
        options.addStringOption('charSet', 'UTF-8')
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}