SVN pre-commit hook for avoiding changes to tags subdirectories

Question

Is there anybody who has clear instructions on how to add a pre-commit hook that avoids changes to tags subdirectories?

I already searched the internet quite a bit.

Answer 1

This anwser is a lot after date, but I discovered the --copy-info parameter for the svnlook changed command.

The output of this command adds a '+' in the third column, so you know it is a copy. You can check for commits to the tags directory, and only allow commits with a '+' present.

I've added some output in my blog post.