traccar-manager-android/app/build.gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 28
    buildToolsVersion '28.0.2'

    defaultConfig {
        applicationId 'org.traccar.manager'
        minSdkVersion 19
        targetSdkVersion 28
        versionCode 17
        versionName '2.7'
    }

    flavorDimensions 'default'
    productFlavors {
        regular
        google
    }
}

dependencies {
    implementation 'com.android.support:design:28.0.0-rc02'
    googleImplementation 'com.google.firebase:firebase-core:16.0.1'
    googleImplementation 'com.crashlytics.sdk.android:crashlytics:2.9.4'
}

if (getGradle().getStartParameter().getTaskRequests().toString().contains('Google')) {
    apply plugin: 'com.google.gms.google-services'
    apply plugin: 'io.fabric'

    task copyJson(type: Copy) {
        from '../../traccar-shared/google-services'
        into '.'
        include 'traccar-manager-android.json'
        rename('traccar-manager-android.json', 'google-services.json')
    }

    afterEvaluate {
        preBuild.dependsOn copyJson
    }
}