traccar-manager-android/app/build.gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 27
    buildToolsVersion "27.0.3"

    defaultConfig {
        applicationId "org.traccar.manager"
        minSdkVersion 19
        targetSdkVersion 27
        versionCode 15
        versionName "2.5"
    }

    flavorDimensions "default"
    productFlavors {
        regular
        google
    }
}

dependencies {
    compile 'com.android.support:design:27.1.0'
    testCompile 'junit:junit:4.12'
    testCompile 'org.robolectric:robolectric:3.6.1'
    googleCompile 'com.google.firebase:firebase-core:11.8.0'
    googleCompile 'com.crashlytics.sdk.android:crashlytics:2.9.1'
}

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
    }
}