tmuxp pass args to tmux

[JBKahn]

Is there a way (can't find any) to pass an arbitrary arg to tmux? I want to pass -CC but I don't see an easy way to do that and I'm not familiar with the packages you're using so I'm not sure where in the code this would have to be.

[tony]

I need to know what behavior you're looking to get to be sure.

I believe load_workspace and command_load

I can add a -C and -CC option to pass those arguments after the building is complete and you attach the session. Is that what you're looking for?

[JBKahn]

This is the integration I'd like to make use of, but it seems somewhat complicated. I don't know if it matters that it launches a new terminal to do this: https://gitlab.com/gnachman/iterm2/wikis/TmuxIntegration

[JBKahn]

not necessary, I can just create it with -d then attach and all works.

[maxekman]

It would be nice to be able to pass flags to tmux on startup. I would like to use it for iTerm integration like @JBKahn. I think it is reasonable for tmuxp to allow it as one of its purposes is to make it easy to start and use sessions. tmuxp load -d file.yaml && tmux attatch -t session is a bit too long when it could be done like tmuxp -CC load file.yaml for example.

[nomasprime]

Has anyone got this working?

tmuxp load -d … outputs tmux: unknown option -- d

[tony]

The commands aren't pass-thru at of now, but I think it makes sense for us to use tmux(1)'s args wherever possible

We recently introduced window appending, which overlaps with tmux's -a. I assume since attach is default we're in the clear in that regard

[tony]

I added a pinned label so the cleanup bot won't close this

[nomasprime]

Thanks @tony.

I'm fairly new to tmux so still stumbling around in the dark quite a lot.

Thought iTermocil might be better for iTerm but ironically it blows up when using its tmux integration.

Found a comment proposing tmuxinator and a sample config. Can tmuxp be configured similarly, my impression is pass-thru commands would be required or did I misunderstand?

[tony]

I never heard of itermocil - and it's cool you bring it up

I'd need to take a peek at it, but unfortunately I don't have a mac to try it with

And... they use python, kind of interesting why they don't use tmuxp / libtmux.

So if we have a mac user that can test, maybe it'd be possible for an integration to happen

I think in the mean time if you want to use iTerm, you mean want to use teamocil / tmuxinator / etc in the meantime, unless someone else with macOS can step into help us (Any takers?)

[leeand00]

I found this thread trying to look for how to launch tmuxp passing argument to it; the way that you could in tmuxinator. But it seems like that is rather ruby-specific.

In the mean time I guess I can just use environment variables.

[tony]

@leeand00 Do either of these help?

https://tmuxp.git-pull.com/configuration/examples.html#environment-variable-replacing, https://tmuxp.git-pull.com/configuration/examples.html#environment-variables

Assume test_env_vars.yaml:

session_name: ${SESSION_NAME}
windows:
- window_name: ${WINDOW_NAME}
  panes:
  -

$ env SESSION_NAME='my session' WINDOW_NAME='a window' tmuxp load ./test_env_vars.yaml

[leeand00]

That works great except I can't pass any of the env cars to my shell cmds.

[tony]

@leeand00 That may be the case - not sure. It could be something we could add

Can you give an example config file so I can try?

[leeand00]

session_name: ${SESS_TITLE}
windows:
- window_name: ${BOX}
  panes:
    - shell_command:
      - echo ${BOX}

echos ${BOX} as opposed to what I passed into it.

Also it's not an available environment variable either within the shell that opens.

[tony]

I was able to do it here, slightly different syntax:

session_name: ${SESSION_NAME}
windows:
- window_name: ${WINDOW_NAME}
  panes:
  - echo ${WINDOW_NAME}

env SESSION_NAME='my session' WINDOW_NAME='a window' tmuxp load ./test_env_vars.yaml

That work?

[tony]

Also I was able to do it with this too:

session_name: ${SESSION_NAME}
windows:
- window_name: ${WINDOW_NAME}
  panes:
  - shell_command:
    - echo ${WINDOW_NAME}

echos ${BOX} as opposed to what I passed into it.

What command are you running?

[tony]

@leeand00 Forgot to tag you ^

[leeand00]

@tony

Also I was able to do it with this too:

session_name: ${SESSION_NAME}
windows:
- window_name: ${WINDOW_NAME}
  panes:
  - shell_command:
    - echo ${WINDOW_NAME}

echos ${BOX} as opposed to what I passed into it.

What command are you running?

env SESSION_NAME='my session' BOX='CMPNAMEPOS1' tmuxp load ./me-yml-file.yml -d

[tony]

@leeand00 This works for me. I think you can do it.

Maybe there's a typo somewhere? Try on a new shell / terminal without other stuff running? (e.g. kill tmux and have a new terminal window)

tmuxp -V, tmux -V, python -V? What shell are you using? tmuxp debug-info?

[leeand00]

@tony

tmuxp 1.5.4 tmux 3.0a Python 3.8.2 (had to run python3, not python)

tmuxp debug-info Usage: tmuxp [OPTIONS] COMMAND [ARGS]... Try "tmuxp --help" for help.

Error: No such command "debug-info".

[tony]

@leeand00 Where did you install tmuxp from?

Current version is 1.13.1, here's the changelog since 1.5.4: https://github.com/tmux-python/tmuxp/blob/v1.13.1/CHANGES

Any chance you can update?

[leeand00]

@tony from apt-get WSL2, Ubuntu 20.04 LTS

Is there a dpkg? Or pip?

[tony]

@tony from apt-get WSL2, Ubuntu 20.04 LTS

Is there a dpkg? Or pip?

Think you could try to use pipx to get a more recent tmuxp version?

What shell are you using? Bash? zsh? fish? dash? echo $SHELL may tell.

[leeand00]

@tony I'm using bash. I never heard of pipx.

Why would I have to use it to install the latest version?

[leeand00]

@tony Okay I installed pipx 0.12.3.1.

The command for installation I found on the main page doesn't appear to work (for me at least)

# pipx install --suffix=@next 'tmuxp' --pip-args '\--pre' --force
usage: pipx [-h] [--version] {install,inject,upgrade,upgrade-all,uninstall,uninstall-all,reinstall-all,list,run,ensurepath} ...
pipx: error: unrecognized arguments: --suffix=@next

[tony]

@leeand00 Hmm.

It seems pipx's argument signature may change

pip install --user -U tmuxp

~/.local/bin/tmuxp

Does that work?

You may need to add ~/.local/bin to PATH:

if [ -d "$HOME/.local/bin" ]
then
    export PATH=$PATH:$HOME/.local/bin
fi

In lieu of all the above: I think it depends what fits your style. I would encourage searching online for whichever angle you would like to get caught up with pip install --user and pipx.

My only hesitation is, if I sent more commands on their own, I'm afraid it could bork your python installation.

It may be a prerequisite to familiarize pip and pipx and shell configuration (e.g. ~/.bashrc, ~/.zshrc, depending on your shell) - since those are needed in order to reason about the above.

[m-faith]

Tmuxinator can pass args to tmux like so...

tmux_options: -f ~/.tmux.mac.conf.

I thought Tmuxp could do this just as well as Tmuxinator. Am I mistaken about the method for this?

Related: https://github.com/tmux-python/tmuxp/issues/867