Invoke startup hook just once

[ghost]

I use the dwl:hook-startup in my configuration to manually start the Shepherd daemon so that home services like kanshi are initialized after the compositor. However, doing this causes the dwl-guile daemon to break upon reconfiguration. My first thought was to get the PID, persist it in a variable and check if this exists in further reconfigurations, but I'm not sure how to go about this via dwl:spawn. AFAICT, you work around this in your config by using custom Shepherd services that have a requirement of dwl-guile, but tackling this would be useful for people that don't use RDE/don't want to override features.

[Frewacom]

Hi,

The startup hook is only called once during startup, and will not be called again, even if you reload the config (from what I can see).

Are you sure that your startup hook callbacks are called again on reconfigure?

[ghost]

Yes, my bad, apologies. It seems that using a program-file inside the callback caused some weird quirks. I've now reworked it to use dwl:spawn and it works as expected.

[Frewacom]

No worries!