Hello Joey!
I found this patch set that you created few years ago: https://lore.kernel.org/git/1466195481-23209-1-git-send-email-joeyh@joeyh.name/
I need the exact same feature 
What is your take on it? Any interest in collaborating to try to merge this upstream?
Since filter.foo.process was being developed at the same time, they had a good reason to not accept the patch.
This page tracks ways that the current git interface limits git-annex: git smudge clean interface suboptiomal
Since I've been able to work around most of the problems with the interface, the main consequences are slightly slower
git addof large files and lack of integration with commands likegit stashthat update the working tree without running any hook. This is minor enough that most people won't be bothered by it, so implementing a better interface is not a priority for me.I would support git's smudge/clean interface being improved, but the benefits to git-annex are too small to make me want to dive back into implementing it myself.
(Adding a git hook that runs after
git stash,git reset --hardetc would interestingly fix the biggest remaining issue in a way that avoids the issue of improving the interface. Adding hooks is comparatively easy...)Thank you for the reference!
I may try to use this trick, but I doubt it would be sufficient for me:
I will keep you updated on the progress in this direction.