remote tmux init

remote.sh

# Remote

# in case the remote has no session called my-session
RemoteCommand=$(cat << _EOT
"
tmux new -d -s my-session -n e-mail \"mutt\";
tmux new-window -d -n irc \"weechat-curses\";
tmux new-window -d;
tmux new-window -d;
tmux new-window -d;
tmux attach -t my-session:2;
"
_EOT
)

# what really is to do
remote_tmux(){
    local tld=$1
    echo -e "[ using '${tld}' as top level domain ]\n"

    ssh remote.${tld} tmux has-session -t my-session &> /dev/null
    if [[ $? == 0 ]]
    then
        ssh -t remote.${tld} tmux attach-session -t my-session
    else
        ssh -t remote.${tld} bash -c ${RemoteCommand}
    fi
    unset tld
}

# checks if alternative tld can be used
remote_alttld(){
    echo -e "[ looking for alternative nameserver ]\n"
    ping -c 2 192.168.0.2
    if [[ $? != 0 ]]
    then
        echo -e "\n[ not available ]\n"
        return 1
    fi

    echo -e "\n[ checking DNS for 'remote.tld' ]"
    dig remote.tld @192.168.0.2 | tee - | grep "192\.168\.0\.1" &> /dev/null
    if [[ $? != 0 ]]
    then
        echo -e "\n[ seems not to be the alternative network ]\n"
        return 1
    fi
    return 0
}

# default checks
remote_default(){
    echo -e "[ looking for a network connection ]\n"
    local gateway=$(ip r | grep default | cut -d" " -f3)
    if [[ ${gateway} = "" ]]
    then
        echo -e "[ you not seem to be connected to a network ]\n"
        return 1
    fi

    ping -c 2 ${gateway}
    if [[ $? != 0 ]]
    then
        echo -e "\n[ the gateway seems not to be reachable ]\n"
        return 1
    fi

    dig ANY remote.com | tee - | grep "\(10\.0\.0\.1\|2001:abcd:ef01:234::5\)" &> /dev/null
    if [[ $? != 0 ]]
    then
        echo -e "[ it seems the remote cannot be resolved here ]\n"
        return 1
    fi
    echo -e "[ having network ]\n"
    unset gateway
    return 0
}

remote(){
    remote_default
    if [[ $? != 0 ]]
    then
        exit 1
    fi

    remote_alttld
    if [[ $? != 0 ]]
    then
        remote_tmux com
        exit 0
    else
        remote_tmux local
        exit 0
    fi
}

## Main

case "$1" in
    "remote"  ) remote;;
    "")
        echo -e "configured sessions are:\n  remote";
        ;;
    *)
        echo -e "usage: muxxer [session-name]" >2;
        echo -e "configured sessions are:\n  remote";
        ;;
esac