Now that we're well on our way to managing coding standards in a reproducible way:
...let's just add the tools to core's
composer.json dev requirements.
That way we don't have to instruct people how to install them beyond saying "run
composer install --dev"
core/composer.json to add
squizlabs/php_codesniffer as a dev requirement.
Add an install script to
composer.json which adds coder's
code_sniffer as an
User interface changes
Data model changes