How to migrate from Google Code's subversion to another subversion server keeping the history? The problem here is that I don't have access to the repository of Google Code, nor to the one I will migrate.
You can 'svnsync' the data from Google code to a local repository on your pc. You can then use 'svnadmin' to create a dump file from that and send that to your new hosting provider or in some cases you can use svnsync to upload to the repository.
The only public hosting I know that supports svnsync upload is Google code (it requires clearing the repository first), which most likely doesn't help you, but there might be others now.
The svnsync command might be what you need. It allows you to create a copy of an existing repository to which you do not have file level access.
来源：https://stackoverflow.com/questions/1846050/google-code-svn-migration