git pull - with .env & laravel

.env

GIT_DIR="/dir"
GIT_KEY="key"
GIT_BRANCH="refs/heads/master"

githook.php

<?php

if (file_exists('../githook.sh')) {
    $json   = file_get_contents('php://input');
    $jsarr  = json_decode($json, true);
    $branch = $jsarr["ref"];

    if (!$branch || !isset($_GET['key'])) {
        header("HTTP/1.0 500 Internal Server Error");
        print_r($json);
        die('Error');
    }

    echo shell_exec('sh ../githook.sh ' . $_GET['key'] . ' ' . $branch);
} else {
    header("HTTP/1.0 500 Internal Server Error");
    die('No file');
}

githook.sh

#!/bin/sh

if [ $# -eq 0 ]; then
    echo "No arguments supplied"
    exit 1
fi

. ../.env
HOME=$(cd ~ && pwd)
export HOME=$(cd ~ && pwd)

#alias php='/usr/bin/php-cli'

if [ -z ${GIT_DIR+x} ]; then 
   echo "No GIT_DIR on .env"
   exit 1
fi

if [ -z ${GIT_KEY+x} ]; then 
   echo "No GIT_KEY on .env"
   exit 1
fi

if [ "$1" != "${GIT_KEY}" ]; then
    echo 'Wrong KEY'
    exit 1
fi



#App directories
GIT_LOG="${GIT_DIR}/git.log"

echo "Checking out" >> ${GIT_LOG}
cd ${GIT_DIR}
git pull origin ${GIT_BRANCH} >> ${GIT_LOG}

echo "Composer install & Dumpautoload & Running optimizations" >> ${GIT_LOG}
php-cli -d allow_url_fopen=1 -d detect_unicode=0 composer.phar install >> ${GIT_LOG}

echo "Laravel Clearing Cache" >> ${GIT_LOG}
php-cli artisan cache:clear >> ${GIT_LOG}
   
echo "Chmoding Storage" >> ${GIT_LOG}
chmod -R g+w storage

exit 1