Restore remote vim sessions over ssh inside local tmux?

[hq6]

I do not know if this is possible, but currently, if I ssh into a server (while running tmux locally) and then start vim on the remote server, tmux-resurrect will save the fact that I sshed into a remote server, but not the fact that I started vim there.

I'm not sure if this is out of scope, but it would be even more awesome if one could restore programs executed after ssh is executed locally, perhaps by recording keystrokes.

[aayoubi]

Most of my tmux sessions are used while being sshed into different remote servers. One thing I've done, which was quite useful to me, is to tweak tmux-resurrect to add the prompt command of my panes while saving my sessions, the prompt contains the directory I was in, and then during the restore, I ssh back to the server and pushd into the directory I was last in. I still haven't found a generic way to implement this as a strategy.

What you want is certainly feasible, you just have to find a way to save the vim command you've been executing in those ssh sessions, and re-execute them during the restore.

These are the scripts to look at:

• ./tmux-resurrect/scripts/save.sh
• ./tmux-resurrect/scripts/restore.sh
• ./tmux-resurrect/scripts/process_restore_helpers.sh

[falzard]

Same problem but with virtual machines. I don't know how to do what @aayoubi said

[bruno-]

It would be pretty amazing if we could do this, but I'm not sure there's a reliable way to do this. Heck, there are sometimes problems with properly detecting local commands.

Here are other solutions to this problem:

1. invoke vim directly from the ssh command
   
   Example: ssh yourserver "cd /path; vim some_file.txt". Now, when your ssh command is restored, it should execute the command on the server.

2. Use tmux on the server and make ssh command automatically attach to tmux
   
   Always ssh to tmux on the server. I use this script I call ssht to do that:

#!/usr/bin/env bash

ssh $* -t 'tmux attach || tmux'

You use it ssht youruser@yourserver instead of ssh ...

When you connect to the server in this way you should automatically have your server environment ready (eg vim opened etc). Locally, you just need to ensure your ssht program is restored. The instructions for that are here, but long story short, this option in tmux.conf should do the trick: set -g @resurrect-processes 'ssht'

[abouteiller]

You may want to run mosh inside your tmux instead of ssh, so that the disconnect does not kill your vim at the remote end. Then the mosh issued by your local tmux would reconnect to the still running vim at the remote.

[aiguofer]

@abouteiller have you found a way to get tmux-resurrect to work with mosh? It tries to call mosh-client on resurrect, which fails...

I ended up adding this to my .tmux.conf but I feel it's kinda hacky:

# replace mosh-client with mosh command
run-shell "sed -i -E 's/mosh-client( (-# )?([^ |]+) \\|[0-9. ]+)?/mosh \\3/g' ~/.tmux/resurrect/last"