Post receive hook on a Git bare repo for a Laravel project deploy

post_receive

#!/bin/bash
# Adapted from https://gist.github.com/noelboss/3fe13927025b89757f8fb12e9066f2fa

# Changes these variables values
TARGET="/home/poweruser/www/app"
GIT_DIR="/home/poweruser/menufinder.git"
BRANCH="master"

while read oldrev newrev ref
do
        # only checking out the master (or whatever branch you would like to deploy)
        if [[ $ref = refs/heads/$BRANCH ]];
        then
                echo "Ref $ref received. Deploying ${BRANCH} branch to production..."
                # Puts the Laravel application into maintenance mode
                php ${TARGET}/artisan down 2> /dev/null
                # Updates the application (work tree) with the latest changes
                git --work-tree=$TARGET --git-dir=$GIT_DIR checkout -f
                # Updates composer and npm packages
                composer install -d $TARGET --no-progress --no-interaction --prefer-dist --no-suggest --no-dev
                npm --prefix $TARGET install $TARGET --only=prod
                # Builds frontend assets
                npm --prefix $TARGET run prod
                # Brings the Laravel application out of maintenance mode
                php ${TARGET}/artisan up 2> /dev/null
        else
                echo "Ref $ref received. Doing nothing: only the ${BRANCH} branch may be deployed on this server."
        fi
done