post-receive hook for git deploy (Laravel 4)

post-receive.sh

#!/bin/sh
WEBROOT=/var/www/domain.com/project
GIT_WORK_TREE=$WEBROOT git checkout -f
#change directory to the project dir
cd $WEBROOT
rm -f storage/cache/*
echo 'cache cleared'
rm -f storage/views/*
echo 'views cleared'
# Check if a composer.json file is present
if [ -f composer.json ]; then

    # Detect composer binary
    if which composer >/dev/null; then
        composer='composer'
    elif which composer.phar >/dev/null; then
        composer='composer.phar'
    else
        # Install composer
        curl -s http://getcomposer.org/installer | php >/dev/null
        composer='php composer.phar'
    fi

    # Install or update packages specified in the lock file
    $composer install

fi
# migrate database if required
php artisan migrate