build.gradle

buildscript {

    ext.kotlinVersion = "1.3.41"
    ext.gradleVersion = "3.4.1"

    repositories {
        jcenter()
        google()
    }

    dependencies {
        classpath "com.android.tools.build:gradle:$gradleVersion"
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion"
        classpath "org.jetbrains.kotlin:kotlin-android-extensions:$kotlinVersion"
    }
}

ext {
    minApiVersion = 19
    maxApiVersion = 28
    aptVersion = "28.0.3"

    appVersionName = "1.0.0"
    appVersionCode = 1

    timberVersion = "4.6.1"

    junitVersion = "4.12"

    appcompatVersion = "1.1.0"
    materialVersion = "1.0.0"
    constraintVersion = "1.1.3"

    gsonVersion = "2.8.5"
}

allprojects {
    repositories {
        jcenter()
        google()
    }
}

subprojects {

    if (project.name == 'app') {
        apply plugin: 'com.android.application'
    } else {
        apply plugin: 'com.android.library'
    }
    apply plugin: 'kotlin-android'
    apply plugin: 'kotlin-android-extensions'
    apply plugin: 'kotlin-kapt'

    android {

        compileSdkVersion maxApiVersion
        buildToolsVersion aptVersion

        defaultConfig {

            minSdkVersion minApiVersion
            targetSdkVersion maxApiVersion

            if (project.name == 'app') {
                applicationVariants.all { variant ->
                    variant.outputs.all {
                        outputFileName = "app-${variant.name}-${variant.versionName}.apk"
                    }
                }
            }
        }

    }

    dependencies {

        // Kotlin
        implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlinVersion"

        // Logging
        implementation "com.jakewharton.timber:timber:$timberVersion"

        // Unit tests
        testImplementation "junit:junit:$junitVersion"
    }
}

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