How to tell if caelestia shell is active?

[PowerUser64]

I would like to incorporate awareness of caelestia into my shell config, so I can apply the terminal colorscheme (cat ~/.local/state/caelestia/sequences.txt), and the like when it's active. Is there a recommended way to do that?

(I suppose a simple solution would be to set an environment variable like HYPRLAND_SHELL to caelestia and put it in my hyprland config, but I feel like there should be a way to do this without that.)

[soramanew]

You can check whether the shell is active by looking for the qs -c caelestia process (if on arch, if on nix check for caelestia-shell)

[PowerUser64]

Thank you!

[PowerUser64]

Hmm, after testing this, it appears that this also launches the shell, which isn't exactly what I was hoping to do. Is there a command that can tell whether caelestia is running that doesn't also launch it?

[nuknes]

you can just query the currently active processes for it?

pgrep -f "qs -c caelestia"

ps aux | grep '[q]s -c caelestia'

These commands only check the process table and do not launch any new processes

I would like to incorporate awareness of caelestia into my shell config, so I can apply the terminal colorscheme (cat ~/.local/state/caelestia/sequences.txt), and the like when it's active.

if pgrep -f "qs -c caelestia" > /dev/null
    # Caelestia is running, apply colorscheme from sequences.txt
    source ~/.local/state/caelestia/sequences.txt
    # Or execute commands to apply colorscheme
end

you can drop something like that into config.fish to tailor environment settings dynamically based on caelestia’s status

[PowerUser64]

Thanks! I think this is the best way we can do do this for now.