post_install() {
    if ! getent passwd bip > /dev/null; then
        echo "==> Creating bip user"
        usr/bin/useradd --comment "Bip IRC Proxy" --shell /bin/sh --home /var/lib/bip --system --user-group bip
    fi
    
    mkdir -p /var/run/bip 2 > /dev/null
    chown -R bip:bip /var/run/bip
    
    mkdir -p /var/log/bip 2 > /dev/null
    chown -R bip:bip /var/log/bip
    systemctl daemon-reload
}

post_upgrade() {
    post_install
}

pre_remove() {
    systemctl stop bip
    echo "==> Removing bip user and group"
    userdel bip
    if getent group bip > /dev/null; then
        groupdel bip
    fi
    rm -rf /var/run/bip
}