Package for your app – it allows your app to check himself has consistent vendor dir (direct API, no CLI).

composer.json <== (synchronized) ==> /vendor

For small teams can be difficult to cooperate and keep /vendor directory synchronized with requirements in composer.json. Your colleagues can be a junior or can be not accustomed to right use the Composer.

You can force refresh Composer via git-hooks, or push all /vendor into your repo, but it's very dirty way. Don't do it!

Or… just add this package to you project. It checks if you /vendor is consistent with project and can notify you and your colleagues to forgotten refresh.

Add this package to project as dev dependency:

composer require --dev jakubboucek/composer-vendor-checker

In your app just call validateReqs() method:

\JakubBoucek\ComposerVendorChecker\Checker::validateReqs(__DIR__);

When /vendor is not consistent with composer.json, checker throws an Exception.