如何将目录结构导入SVN，保持文件和文件夹修改日期相同？

I've got a large source tree (> 2 GB, WINCE build tree) that I would like to start managing with Subversion. Up to this point, 'versioning' has been managed through keeping multiple copies of the tree, and using Beyond Compare to find differences.I've got a large source tree (> 2 GB, WINCE bui