build.gradle

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

buildscript {

    ext.versions = [
            'compileSdk': 28,
            'buildTools': '27.0.3',
            'minSdk': 23,
            'targetSdk': 28,
            'supportLibrary': '26.1.0',
            'firebase': '10.0.1',
            'retrofit': '2.0.0-beta4',
            'okhttp': '3.6.0',
            'ion': '2.1.7',
            'videoAndroid': '2.2.1'
    ]

    ext.getSecretProperty = { key, defaultValue ->
        def value = System.getenv(key)

        if (value == null) {
            Properties properties = new Properties()
            if (project.rootProject.file('local.properties').exists()) {
                properties.load(project.rootProject.file('local.properties').newDataInputStream())
                value = properties.getProperty(key)
            }
        }

        if (value == null) {
            value = defaultValue
        }

        return value
    }
    
    repositories {
        google()
        jcenter()

        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.1'
        

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
        classpath 'com.google.gms:google-services:4.0.1'
    }
}

allprojects {
    repositories {
        google()
        jcenter()

        mavenCentral()
    }
}

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