To simplify things it's common to place different projects under the same repository, and this can also come handy when different projects share a common one. But this is not always convenient, and sometimes even possible. To mitigate an increased management complexity of multiple repositories SVN offers a special property called svn:externals. We can then define that when checking a directory A under the repoX, the directory B from repoY will be pulled in as well. more »