I one of the previous versions of my code, stored in a Subversion repository, there is sensitive information. How to erase it while keeping all other versions?
EDIT: The repository is Google Code Project Hosting, so I can't dump and restore the repository =(
Want you want is a SVN feature commonly called "obliterate", which unfortunately still is not implemented.
As a workaround, you will have to dump, filter & reimport your repository. See e.g. the entry in the SVN faq How do I completely remove a file from the repository's history?.
BTW: It's a dupe :-). http://stackoverflow.com/questions/663584/subversion-permanently-remove-incorrectly-checked-in-directory-project
It's a bit of work, but fortunately there are good explanations around, such as this one by Rob Gonda.
You can't remove what's commited to subversion other than completely dump, erase the original, and recreate the repository from the dump.
If you want to completely remove a file/path, you can do that with the svndumpfilter:
svnadmin dump /path/to/repository > svndump
svndumpfilter exclude path/to/sensitivefile > svndump-excluded
svnadmin create /tmp/newrepository
svnadmin load /tmp/newrepository < svndump-excluded
Then backup your /path/to/repository and replace it with /tmp/newrepository after you've verified everything is ok.
If you want to only exclude a single revision, you'd have to do something like
svnadmin dump -r 0:1000 /path/to/repository > svndump1
svnadmin dump -r 1002:HEAD --incremental /path/to/repository > svndump2
svnadmin create /tmp/newrepository
svnadmin load /tmp/newrepository <svndump1
svnadmin load /tmp/newrepository <svndump2
That is, revision 1001 is excluded. You can't do it more fine grained btw, a whole revision have to be excluded. Same deal here, backup your original repository, verify that everything needed in the new repository is there.