pre-rebase, post-rewrite, ...

Hi all,

I am using the pre-rebase hook to generate a tag. I am using this tag
to check if my rebase lost any commits or content when i'm cleaning up
my local commit history.
What i now want to do is using a post-rebase hook to make a diff check
and remove my generated tag in case there is no difference.

I use the post-rewrite hook to make this check, but this only triggers
in case of a rewrite happening (which is understandable). But the
pre-rebase hook triggers on every git rebase call and so i generate
tags which could be removed automatically.

Is there any other hook i could use or why is there no post-rebase hook?

An older post mentions ( http://marc.info/?l=git&m=120796177421283&w=2
) point 5 which i think applies to my problem, but as i can't alias
real git commands (which is ok) i would need to use a new command.

Best regards,
Uwe