Confirmation message Spring shell

Question

Is there an way for a spring-shell command to first ask for a confirmation message. For example

command

Do you want to proceed [y/n]

y

executing command

I did some research on internet but I don't find example of this type of command.

Answer 1

I am using jline.console.ConsoleReader (which spring-shell currently uses as well) for this, so the code looks something like:

public static boolean askYesNo(String question) {
    while (true) {
        String backup = ask(String.format("%s (y/n): ", question));
        if ("y".equals(backup)) {
            return true;
        }
        if ("n".equals(backup)) {
            return false;
        }
    }
}

public static String ask(String question) {
    question = "\n" + question + " > ";

    try {
        ConsoleReader consolereader = new ConsoleReader();
        return consolereader.readLine(question);
    } catch (IOException e) {
        e.printStackTrace();
    }

    return null;
}