Thread:Project:Support desk/Wiki revisions history -- SVN/Git/Hg?

Is it possible to export MediaWiki history into Subversion (Git, Hg, whatever) so later all newer MediaWiki-based wiki revisions could be updated (pulled) into that copy? I would expect that copy to be read-only without committing and pushing back to the wiki, that does not really matter. But is it possible? Thanks!