Print with file and function name

func log(message: String = "", file: String = #file, line: Int = #line, function: String = #function) {
    var logString = ""

    if let encoded = file.addingPercentEncoding(withAllowedCharacters: .urlHostAllowed), let url = NSURL(string: encoded), let lastPathComponent = url.lastPathComponent {
        logString += "\(lastPathComponent)"
    } else {
        logString += "\(file)"
    }

    logString += ":\(line) - \(function)"

    if message != "" {
        logString += "\n>>> \(message)"
    }

    print(logString)
}