We’re merging design.trac and unit-tests.trac into core.trac (but keeping separate SVN repos), taking advantage of Trac 0.12’s multi-repository support.

Everything is set up on Trac’s end, I just need two commands run:

trac-admin $ENV repository resync "tests"
trac-admin $ENV repository resync "design"

… where $ENV would be the path to trac-environs/wp-core.

I then need two post-commit hooks, one on the unit-tests.svn repo, and the other on design.svn, both pointing to the wp-core environment:

trac-admin $ENV changeset added "design" $REV
trac-admin $ENV changeset added "tests" $REV