There is 'svn commit --with-revprop' in >=1.5, does that help?
David Weintraub wrote on Tue, 22 Jun 2010 at 07:36 -0000: > I know this sounds strange, but can you set a revision property before > a revision is created? > > For example, I make some file changes, and want to mark that my > changes fixed bug # 1001. To do this, I'll set a revision property > "corp:bugbix" to "1001". Then, I'll check in my changes with the new > revision property. > > There are several revision properties that are set before the revision > is committed: svn:log, svn:date, and svn:author. However, these are > special revision properties used by Subversion. I'd like to have a > pre-commit trigger to force users to set a particular custom revision > property before checking in their code. > > I know older versions of Subversion could not do this, but I thought > 1.5 or 1.6 could. > > Just working on a new pre-commit trigger, and want to know if this is > something I can do. > >