auto ssh agent

.bashrc

function addkey() {
    autoagent
    ssh-add ~/.ssh/id_rsa
    export_ssh_agent
}

function autoagent() {
    # cache file
    ssh_auth_sock_cache="/tmp/ssh_auth_sock.cache"
    ssh_agent_pid_cache="/tmp/ssh_agent_pid.cache"
    if [ ! -e "${ssh_auth_sock_cache}" ] || [ ! -d "${ssh_agent_pid_cache}" ]; then
        # if sock file or pid file does not exist, create a new ssh agent
        # echo "removing ssh caddache"
        rm "${ssh_auth_sock_cache}" -f
        rm "${ssh_agent_pid_cache}" -f
        eval $(ssh-agent -s)
        ln -s "${SSH_AUTH_SOCK}" "${ssh_auth_sock_cache}"
        ln -s "/proc/${SSH_AGENT_PID}" "${ssh_agent_pid_cache}"
    fi
    SSH_AUTH_SOCK=${ssh_auth_sock_cache}
    SSH_AGENT_PID=$(cat -- "${ssh_agent_pid_cache}/pgid")
    export SSH_AUTH_SOCK
    export SSH_AGENT_PID
}

function export_ssh_agent(){
    setx SSH_AUTH_SOCK $SSH_AUTH_SOCK
    setx SSH_AGENT_PID $SSH_AGENT_PID
}

autoagent