Is there a Subversion Checkout Hook or something similar?

I'm using a subversion repository and I want to know whenever somebody asks my repository for a checkout; like a 'svn co' or an 'svn up'. Is there a hook or some other method that I can use so that a script is run, or email sent, whenever somebody requests information from my svn server? How can I achieve this without relying on apache logs?

BTW it is a pretty simple repository just meant for Educational purposes.

(If you need more information then just ask. Thanks in advance.)

The following are all the supported hooks in Subversion 1.5, from the Version Control with Subversion book:

• start-commit
• pre-commit
• post-commit
• pre-revprop-change
• post-revprop-change
• pre-lock
• post-lock
• pre-unlock
• post-unlock

There is no pre-checkout or pre-update hook like you describe.