build.gradle

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

buildscript {
    ext.versions = [
            'compileSdk'    : 27,
            'targetSdk'     : 27,
            'buildTools'    : '27.0.3',
            'glide'         : '4.4.0',
            'kotlin'        : '1.2.31',
            'retrofit'      : '2.3.0',
            'supportLibrary': '27.1.0',
            'room'          : '1.0.0',
            'jackson'       : '2.9.1',
            'commonmark'    : '0.10.0'
    ]
    repositories {
        jcenter()
        google()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.1'
        classpath 'com.apollographql.apollo:gradle-plugin:0.4.1'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:${versions.kotlin}"

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        maven { url "https://maven.google.com" }
        maven { url "https://jitpack.io" }
        jcenter()
        google()
    }
}

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