How to force composer to automatically ignore warrning?

Question

I'm making shell script which will install symfony 4 on ubuntu automatically. Since I'm using apache I have to execute:

composer require symfony/apache-pack

However, that command asks me to confirm:

composer require symfony/apache-pack

The recipe for this package comes from the "contrib" repository, which is open to community contributions.
    Review the recipe at https://github.com/symfony/recipes-contrib/tree/master/symfony/apache-pack/1.0

Do you want to execute this recipe?
    [y] Yes
    [n] No
    [a] Yes for all packages, only for the current installation session
    [p] Yes permanently, never ask again for this project
    (defaults to n): y

And I can't use --no-interaction options since default value is "n". How can I change this command not to ask me to confirm this action, but to automatically installs this apache pack?

Answer 1

This does not answer the question per se, but you can get rid of your specific warning per project if you add the following to your composer.json:

"extra": {
    "symfony": {
        "allow-contrib": true
    }
}

or, even better, you can use Composer itself to set the flag before installing symfony/apache-pack:

composer config extra.symfony.allow-contrib true

This will make possible for Flex to install contrib recipes (i.e. recipes provided by the community) automatically, without asking for permission.