tmate-shell

#!/usr/bin/env bash

YP_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." >/dev/null && pwd)"
source ${YP_DIR}/sh/common.inc.sh

echo_info "Install 'tmate' via 'brew install tmate'."

TMP_TMATE_SOCKET=$(mktemp -t yplatform.XXXXXXXXXX)
echo_info "tmate socket: ${TMP_TMATE_SOCKET}"

AUTHENTICATED_KEYS=${1:-}
AUTHENTICATED_KEYS_ARG="-a ${AUTHENTICATED_KEYS}"
[[ -n "${AUTHENTICATED_KEYS}" ]] || {
    AUTHENTICATED_KEYS_ARG=
    echo_warn "No authenticated keys given, thus this session is unrestricted."
    echo_info "Consider running"
    echo_info "mkdir -p ${HOME}/.ssh"
    echo_info "chmod 700 ${HOME}/.ssh"
    echo_info "ssh-keygen -q -t ed25519 -a 100 -N '' -C '$(whoami)@$(hostname)' -f ${HOME}/.ssh/id_ed25519"
    echo_info "and calling 'tmate-shell ${HOME}/.ssh/id_ed25519.pub' instead."
}
echo_info "authenticated keys: ${AUTHENTICATED_KEYS:-none}"

rm -rf ${TMP_TMATE_SOCKET}
exe tmate -S ${TMP_TMATE_SOCKET} ${AUTHENTICATED_KEYS_ARG} new-session -d "${SHELL} -l"
tmate -S ${TMP_TMATE_SOCKET} wait tmate-ready

while [[ -e ${TMP_TMATE_SOCKET} ]] && tmate -S ${TMP_TMATE_SOCKET} has-session; do
    echo
    tmate -S ${TMP_TMATE_SOCKET} display -p "#{tmate_ssh}"
    # NOTE skip web interface. it's convenient but buggy
    # tmate -S ${TMP_TMATE_SOCKET} display -p "#{tmate_web}"
    sleep 60
done