build.gradle

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

buildscript {
    ext.kotlin_version = '1.4.10'
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:4.1.1'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

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

ext {
    supportlib_version = '27.1.1'
    appcompat_version = supportlib_version
    design_version = supportlib_version
    constraintlayout_version = '1.1.0'
    junit_version = '4.12'
    testrunner_version = '1.0.2'
    espresso_version = '3.0.2'
}

ext.deps = [
        'kotlin' : "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version",
        'android': [
                'support': [
                        'core'            : "com.android.support:support-v4:$supportlib_version",
                        'appcompat'       : "com.android.support:appcompat-v7:$appcompat_version",
                        'constraintlayout': "com.android.support.constraint:constraint-layout:$constraintlayout_version",
                        'design'          : "com.android.support:design:$design_version"
                ]
        ],
        'test'   : [
                'junit'   : "junit:junit:$junit_version",
                'runner'  : "com.android.support.test:runner:$testrunner_version",
                'espresso': "com.android.support.test.espresso:espresso-core:$espresso_version"
        ]
]

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