Pre-commit script that checks php parse, phpcs (+auto-fix) and phpmd for the committing files

pre-commit.sh

#!/bin/bash

DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )/../../" && pwd )"
PROJECT=`php -r "echo 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=PSR12 --encoding=utf-8 -n -p ./app ./routes ./config
    if [ $? != 0 ]
    then
        echo "Coding standards errors have been detected. Running phpcbf..."
        phpcbf --standard=PSR12 --encoding=utf-8 -n -p ./app ./routes ./config
        git add $FILES
        echo "Running Code Sniffer again..."
        phpcs --standard=PSR12 --encoding=utf-8 -n -p ./app ./routes ./config
        if [ $? != 0 ]
        then
            echo "Errors found not fixable automatically"
            exit 1
        fi
    fi
fi

echo "Running PHP Mess Detector..."
for FILE in $SFILES
do
    if [[ $FILE == app* ]] ;
    then
        echo " - Checking $FILE"
        phpmd $FILE text $DIR/phpmd.xml
        if [ $? != 0 ]
        then
            echo "Fix the error(s) before commit."
            exit 1
        fi
    fi
    FILES="$FILES $PROJECT/$FILE"
done

exit $?