Gradle - Support loading of environment variables from a custom .env file prior to run (works in IDE and CLI)

gistfile1.txt

// Loads environments variables from files contained in .env located in the CWD'
// See: https://stackoverflow.com/questions/36322536/how-to-set-an-environment-variable-from-a-gradle-build
run.doFirst {
    if (project.file('.env').exists()) {
        file('.env').readLines().each() {
            if (!it.isEmpty() && !it.startsWith("#")) {
                def (key, value) = it.tokenize('=')
                if (System.getenv(key) == null) {
                    println "Setting environment variable for ${key}"
                    environment key, value
                }
            }
        }
    } else {
        println "No custom environment variables set"
    }
}