How to run a script over a file when it was (user-)updated

[halloleo]

I sync my personal spell files (like .aspell or .hunspell) via chezmoi. However I like to have words in these files in alphabetical order.

I have a little script sort-spell.sh which I can run on .aspell or .hunspell and it sort the file (in place). At the moment I run this script manually every time before I sync (i.e. re-add) the file to the chezmoi repo.

Is there way to do this automatically? I.e. run sort-spell.sh when I re-add the spell file? I have read Run a script when the contents of another file changes (Use scripts to perform actions), but I think this could end in an endless loop here...

Any suggestions are very much appreciated!

[halostatue]

Hooks. I don't use them myself, but this should work.

https://chezmoi.io/reference/configuration-file/hooks/

[halloleo]

Interesting! Thanks!

From the documentation I conclude I need to add a hook for every command which can change the file .aspell in the source directory. What commands can change the source file? Only re-add?

Does anybody have experience with hooks for changing dot files?