tmux inherits environment variables causing __VFOX_CURTMPPATH to be reused

[jan-bar]

          a bit better screen that may give you some additional hints

Originally posted by @ZuBB in https://github.com/version-fox/vfox/issues/364#issuecomment-2443873158

[jan-bar]

@ZuBB

Use the following tmux configuration to see if there is any problem with my verification.

cat ~/.tmux.conf 

set-option -g default-command "env -u __VFOX_CURTMPPATH -u __VFOX_PID -u __VFOX_SHELL fish"

[ZuBB]

this config/option did the trick @jan-bar

[jan-bar]

@ZuBB I'm glad to solve this problem. The reason for the problem is that tmux will inherit environment variables when creating a new terminal, and the __VFOX_XXX environment variables have special uses.

[ZuBB]

So is there a fix for this issue on your side, or I have to tweak config of tmux?

[jan-bar]

I don’t have a good solution, and many people are troubled by this feature of tmux, which can be avoided by modifying the tmux configuration, so I don’t think it’s necessary to fix it.

[ZuBB]

Then maybe adding a note to the docs would be nice?

[jan-bar]

Yes, you can submit a PR. I haven't submitted a PR related to documentation yet. :smile:

[AliveNeko]

I don’t have a good solution, and many people are troubled by this feature of tmux, which can be avoided by modifying the tmux configuration, so I don’t think it’s necessary to fix it.

I encountered a similar problem when using fish + tmux + vfox: when I reconnect to an existing tmux, my vfox environment is often lost(dotnet, node). And I find this issue. Could you give me a sample tmux configuration to avoid this problem? Thanks a lot~

[jan-bar]

@AliveNeko You can use this solution https://github.com/version-fox/vfox/issues/375#issuecomment-2445725062 ,The principle is to remove those environment variables through the subprocess started by tmux.

[AliveNeko]

@AliveNeko You can use this solution #375 (comment) ,The principle is to remove those environment variables through the subprocess started by tmux.

My bad, I didn't see the above configuration. Thank you very much!❤️

[breno-villa]

I would like to add that this also happens if you launch the system from the tty in linux. I solved it by adding an script to my .zshrc to only activate vfox when the terminal is not the tty. I think that this also should be added to the docs.