if [ -f ~/.agent.env ] ; then
    . ~/.agent.env > /dev/null
    if ! kill -0 $SSH_AGENT_PID > /dev/null 2>&1; then
        #echo "Stale agent file found. Spawning new agent… "
        eval `ssh-agent | tee ~/.agent.env` >/dev/null
    fi 
else
    #echo "Starting ssh-agent"
    eval `ssh-agent | tee ~/.agent.env` >/dev/null
fi