pre-commit hook to block the commit other than svnsync

Question

I need to maintain a mirrored repository for users(read-only). I need to block all commits except the commit from svnsync. I think I can use a pre-commit hook to block commits other than the svnsync?

How can I do this?

Answer 1

Why use a hook? Can't you just use the authz file to set appropriate permissions?

E.g.

[/]
svnsync = rw
* = r