I just did something dumb with my SVN repository, I accidentally imported a load of stuff into the root instead of into a subfolder. It will take me ages to clean up.... unless there is an easy way to do a global revert on the repo? The help file talks about reverting working copies but there is no working copy for a newly-imported item. Is there a way to undo an import?
Duplicate: Roll back or revert entire svn repository to an older revision
See this question: Roll back or revert entire svn repository to an older revision
One way would be to do an backup only up to the desired version and then restore the repository.
svnadm dump /path/to/repo -r 0:desired_max
should give you the backup you want.
Make a checkout of the complete repository, merge the change out and then commit.
$ svn checkout https://server/repro temp
$ cd temp
$ svn merge -c -[revision] https://server/repro
Check your working copy is correct
$ svn commit -m "Revert of botched import."