ssh pane splits

[Smithx10]

While working in tmux I will often be ssh'd into another computer and would love to open a split or new workspace / window and have it automatically be ssh'd into the current panes computer. There is a plugin for this in tmux called https://github.com/pschmitt/tmux-ssh-split.

Demo: https://asciinema.org/a/VEdwjfYOJ3pfU2r9

[Gaurav-Gosain]

Great idea, and thanks for the demo! tuios does not do this yet, so I am building it now:

• New actions split_ssh_horizontal, split_ssh_vertical and new_window_ssh. When the focused pane is in an ssh session, even one started from a shell, the new pane runs the same ssh with the same destination and options. When it is not, you get an ordinary split.
• An option, new_window_follow_ssh, that makes the normal split and new-window keys do this automatically, like tmux-ssh-split's replace mode.
• If the remote shell reports its directory (OSC 7), the new pane starts in that same directory on the remote machine.

I will post here when it is on main.

[Gaurav-Gosain]

Ssh-aware splits are on main now (#471). There are three new actions: split_ssh_vertical, split_ssh_horizontal and new_window_ssh. When the focused pane runs ssh, the new pane runs ssh to the same host as the same user. The remote command is not run again. When the pane does not run ssh, you get an ordinary pane, so the keys are safe to use everywhere.

They have no default keys. For example:

[keybindings.layout]
split_ssh_vertical = ["alt+v"]
split_ssh_horizontal = ["alt+s"]
new_window_ssh = ["alt+w"]

If you want the normal split and new-window keys to do this, like tmux-ssh-split's replace mode, set:

[appearance]
new_window_follow_ssh = true

The new ssh keeps the connection options (host, user, port, key, jump hosts and auth settings). Options that could run a local program, such as ProxyCommand, give you an ordinary pane instead. Your ~/.ssh/config still applies as usual.

mosh works too. Eternal Terminal is not covered yet.

If the remote shell reports its folder with OSC 7, the new pane opens in the same remote folder. fish does this out of the box, and the configuration docs show a one-line setup for bash and zsh.

Thanks for the idea!