Import a repository into another repository.

1. First dump the first repository.

svnadmin dump repo1 > repo1.dumpfile

2. Filter if necessary (see svndumpfilter). Not necessary for me.

3. Create a directory in your repository for the project.

svn mkdir projectdir
svn commit -m "getting ready to import new project"

4. Load the project into the repository.

svnadmin load --parent-dir relative/path/to/projectdir repo2 < repo1.dumpfile

5. Now update your working copies.

svn update