ref: 72b42514510e85ad3e5406adc5502b83d95a4bc4
dir: /plumber-vt.md/
# 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](https://codeberg.org/dnkl/foot/wiki#user-content-spawning-new-terminal-instances-in-the-current-working-directory). 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 p
for (( pos=0; pos<strlen; pos++ )); do
c=${PWD:$pos:1}
case "$c" in
[-/:_.!\'\(\)~[:alnum:]] ) o="${c}" ;;
* ) printf -v o '%%%02X' "'${c}" ;;
esac
encoded+="${o}"
done
p=`printf '\e]7;file://%s%s\e\\' "${HOSTNAME%.lan}" "${encoded}"`
if [ -n "$TMUX" ]; then
printf "%s" "$p" >`tmux display-message -p '#{client_tty}'`
else
printf "%s" "$p"
fi
}
export PROMPT_COMMAND=${PROMPT_COMMAND:+$PROMPT_COMMAND; }osc7_cwd