A Gradle script which conditionally exclude a plugin based on the build variant

app.gradle

// Run with: ./gradlew --build-file build.gradle assembleNoDynatraceDebug
def task = gradle.startParameter.taskNames[0] ?: "" // Get "assembleNoDyntraceDebug"

if (!task.toLowerCase().contains("nodynatrace")) {
    apply plugin: 'com.dynatrace.tools.android'

    dynatrace {
        defaultConfig {
            ...
        }

        productFlavors {
            dynatraceDev {
                ...
            }

            dynatraceProd {
                ...
            }
        }
    }
}