Another special remote that git-annex can use is a bup repository. Bup stores large file contents in a git repository of its own, with deduplication. Combined with git-annex, you can have git on both the frontend and the backend.
Here's how to create a bup remote, and describe it.
Instead of specifying a remote system, you could choose to make a bup remote that is only accessible on the current system, by passing "buprepo=/big/mybup".
# git annex initremote mybup type=bup encryption=none buprepo=example.com:/big/mybup initremote bup (bup init) Initialized empty Git repository in /big/mybup/ ok # git annex describe mybup "my bup repository at example.com" describe mybup ok
Now the remote can be used like any other remote.
# git annex move my_cool_big_file --to mybup move my_cool_big_file (to mybup...) Receiving index from server: 1100/1100, done. ok
Note that, unlike other remotes, bup does not really support removing content from its git repositories. This is a feature.
# git annex move my_cool_big_file --from mybup move my_cool_big_file (from mybup...) content cannot be removed from bup remote failed git-annex: 1 failed
See bup for details.