Pre-commit hook for git with phpcs and phpcbf (auto-correct obvious violations)

pre-commit

#!/bin/sh

PHPCS=`which phpcs`
PHPCBF=`which phpcbf`

if [ -z $PHPCS ] || [ -z $PHPCBF ]
then
	printf "\n\e[38;5;255,255,255m"
	printf "💥 Error: The required tools 'phpcs' and/or 'phpcbf' could not be found in your path.\n\n"
	printf "You can install both tools globally by running:\n\n"
	printf "✅ composer global require squizlabs/php_codesniffer\n\n"
	exit 1;
fi

printf "Detected phpcs at: {$PHPCS}"
printf "Detected phpcbf at: {$PHPCBF}"

PROJECT=`php -r "echo dirname(dirname(dirname(realpath('$0'))));"`
STAGED_FILES_CMD=`git diff --cached --name-only --diff-filter=ACMR HEAD | grep \\\\.php`

# Determine if a file list is passed
if [ "$#" -eq 1 ]
then
	oIFS=$IFS
	IFS='
	'
	SFILES="$1"
	IFS=$oIFS
fi
SFILES=${SFILES:-$STAGED_FILES_CMD}

echo "Checking PHP Lint..."
for FILE in $SFILES
do
	php -l -d display_errors=0 $PROJECT/$FILE
	if [ $? != 0 ]
	then
		echo "Fix the error before commit."
		exit 1
	fi
	FILES="$FILES $PROJECT/$FILE"
done

if [ "$FILES" != "" ]
then
	echo "Running Code Sniffer..."
	$PHPCS --standard=PSR2 --encoding=utf-8 -n -p $FILES
	if [ $? != 0 ]
	then
		echo "Coding standards errors have been detected. Running phpcbf..."
		$PHPCBF --standard=PSR2 --encoding=utf-8 -n -p $FILES
		git add $FILES
		echo "Running Code Sniffer again..."
		$PHPCS --standard=PSR2 --encoding=utf-8 -n -p $FILES
		if [ $? != 0 ]
		then
			echo "Errors found not fixable automatically. You need to manually fix them."
			exit 1
		fi
	fi
fi

exit $?