Setup Magento PHP_Codesniffer

setup.sh

## Use the latest PHP_Codesniffer version
composer require squizlabs/php_codesniffer:^3.5 --dev

## Use the latest versino of Magento Coding Standard
composer require magento/magento-coding-standard:^28 --dev -W

## Make sure phpcs works
vendor/bin/phpcs -i

## Add Magento 2 Coding Standard to PHP_Codesniffer
vendor/bin/phpcs --config-set installed_paths ../../magento/magento-coding-standard/

## PHP_CS should now show "Magento2Framework"
vendor/bin/phpcs -i

## Example usage:
vendor/bin/phpcs --standard=Magento2Framework app/code/Kraken/