How to apply plugin to only one flavor in gradle?

Use this code:

if (!getGradle().getStartParameter().getTaskRequests()
        .toString().contains("Develop")){
    apply plugin: 'com.google.gms.google-services'
}

getGradle().getStartParameter().getTaskRequests().toString() returns something like [DefaultTaskExecutionRequest{args=[:app:generateDevelopDebugSources],projectPath='null'}] so as stated in the comments Develop must start with an uppercase.

Tried different solutions, but none of them worked for me. This is what I came up with and seems to work as far as I tested:

build.gradle

productFlavors {
    someFlavorWithGoogleGcm {
        dimension "type"
        applicationId "com.example.withGcm"
        ext.useGoogleGcm = true
    }
    someFlavorWithoutGoogleGcm {
        dimension "type"
        applicationId "com.example.withoutGcm"
    }
}

And outside the configuration, inside the build.gradle file:

android.productFlavors.each { flavor ->
    if (getGradle().getStartParameter().getTaskRequests().toString().toLowerCase().contains(flavor.name) && flavor.ext.useGoogleGcm) {
        println("Building flavor with Google GCM [${flavor.name}] - applying plugin")
        apply plugin: 'com.google.gms.google-services'
    }
}