Plumber + vt: accessing remote Unix files

It’s possible to use OSC 7 extension for easier plumbing of paths displayed in vt(1). First, for each machine you’re planning to ssh+vt into, set up sshfs(4). Example:

   sshfs -s myhost -r / myhost
   plumb 'Local mount -c /srv/myhost /n/myhost'

The name in “/n/myhost” path MUST be the hostname of the remote machine - run hostname there to check.

For the remote shell to start sending OSC 7 messages, follow these instructions. You might want to replace ${HOSTNAME} with ${HOSTNAME%.lan} to get rid of .lan suffix, depending on how your hosts are shown in /n/....

If you intend to use tmux, it’s required to pass OSC 7 message to vt explicitely, by adding the following at the end of osc7_cwd():

   if [ -n "$TMUX" ]; then
          printf '\e]7;file://%s%s\e\\' "${HOSTNAME%.lan}" "${encoded}" > `tmux display-message -p '#{client_tty}'`
   fi

The full (confirmed to be working) strip from .bash_profile:

   osc7_cwd() {
       local strlen=${#PWD}
       local encoded=""
       local pos c o
       for (( pos=0; pos<strlen; pos++ )); do
           c=${PWD:$pos:1}
           case "$c" in
               [-/:_.!\'\(\)~[:alnum:]] ) o="${c}" ;;
               * ) printf -v o '%%%02X' "'${c}" ;;
           esac
           encoded+="${o}"
       done
       printf '\e]7;file://%s%s\e\\' "${HOSTNAME%.lan}" "${encoded}"
       if [ -n "$TMUX" ]; then
           printf '\e]7;file://%s%s\e\\' "${HOSTNAME%.lan}" "${encoded}" > `tmux display-message -p '#{client_tty}'`
       fi
   }
   export PROMPT_COMMAND=${PROMPT_COMMAND:+$PROMPT_COMMAND; }osc7_cwd