If on some environment you do not want to trigger any scripts, you can prevent this using the --no-scripts
flag.
composer update --no-scripts
composer dump-autoload
php composer.phar update --dev
$ sudo -H composer self-update
$ composer update --ignore-platform-reqs
$ composer self-update --rollback
$ composer install
php artisan clear-compiled
composer dump-autoload
php artisan optimize
composer diagnose