build.gradle

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

buildscript {
    ext.kotlin_version = '1.2.40'
    ext.ktx_version = '0.3'
    ext.support_library_version = '27.1.1'
    ext.rx_version = '2.1.12'
    ext.arch_version = '1.1.1'
    ext.retrofit_version = '2.4.0'
    ext.timber_version = '4.7.0'

    repositories {
        google()
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.1'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
        classpath 'com.github.ben-manes:gradle-versions-plugin:0.17.0'
    }
}

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

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

apply plugin: 'com.github.ben-manes.versions'

dependencyUpdates.resolutionStrategy = {
    componentSelection { rules ->
        rules.all { ComponentSelection selection ->
            boolean rejected = ['alpha', 'beta', 'rc', 'cr', 'm'].any { qualifier ->
                selection.candidate.version ==~ /(?i).*[.-]${qualifier}[.\d-]*/
            }
            if (rejected) {
                selection.reject('Release candidate')
            }
        }
    }
}