Checking if tmpfs is already mounted

[niklasravnsborg]

I'm trying to use this file to check if the tmpfs is mounted on sops-nix for darwin: https://github.com/Mic92/sops-nix/blob/3433ea14fbd9e6671d0ff0dd45ed15ee4c156ffa/pkgs/sops-install-secrets/darwin.go#L85

But as far as I can see this file is created in the tmpfs itself which makes it immune to file watchers. This doesn't trigger, when the secrets.d/ is first mounted.

${pkgs.fswatch}/bin/fswatch -1 -L /run/secrets.d/sops-nix-secretfs

How was this intended to be used? Might it make sense to create this file outside of the tmpfs to allow a file watcher to detect it?

Best :)