build.gradle

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

// Build a number linked to the date to use as version.
def YEAR_WEEK   = new Date().format("yyww").toInteger()
def DAY         = new Date().format("u").toInteger()
def HOUR_MINUTE = new Date().format("HHmm").toInteger()

// The build time
def BUILD_TIMESTAMP = 100000 * YEAR_WEEK + 10000 * DAY + HOUR_MINUTE
// The build version
def BUILD_VERSION = "version ${YEAR_WEEK}:${DAY}:${HOUR_MINUTE}"


// Plugin to check for the latest libraries version.
apply plugin: "com.github.ben-manes.versions"

buildscript {

    repositories {
        google()
        jcenter()
        maven { url 'https://dl.bintray.com/kotlin/kotlin-eap'}

    }
    dependencies {
        classpath 'com.android.tools.build:gradle:4.0.0-alpha09'
        classpath "com.github.ben-manes:gradle-versions-plugin:0.27.0"


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

allprojects {
    ext.buildTimestamp = BUILD_TIMESTAMP
    ext.buildVersion = BUILD_VERSION

    // Use the temp directory to build temporals
    buildDir = "${System.env.TEMP}//gradle-build//${rootProject.name}//${project.name}"
    logger.lifecycle("BuildDir: ${buildDir}")

    repositories {
        google()
        jcenter()
        maven { url 'https://dl.bintray.com/kotlin/kotlin-eap' }
        maven { url 'https://jitpack.io' }
        maven { url "https://jcenter.bintray.com/" }
    }
}

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