git-annex/doc/special_remotes.mdwn
Joey Hess 25b13673f0 improve unused command's output
Display the name of the remote being checked, with "." for the current
remote, echoing the way describe takes that to change its description.
2011-05-28 22:20:22 -04:00

37 lines
1.6 KiB
Markdown

Most [[backends]] can transfer data to and from configured git remotes.
Normally those remotes are normal git repositories (bare and non-bare),
that store the file contents in their own git annex directory.
But, git-annex also extends git's concept of remotes, with these special
types of remotes. These can be used just like any normal remote by git-annex.
They cannot be used by other git commands though.
* [[S3]] (Amazon S3, and other compatible services)
* [[bup]]
* [[directory]]
* [[rsync]]
* [[hook]]
* [[tahoe-lafs|forum/tips:_special__95__remotes__47__hook_with_tahoe-lafs]] - limited testing
## Unused content on special remotes
Over time, special remotes can accumulate file content that is no longer
referred to by files in git. Normally, unused content in the current
repository is found by running `git annex unused`. To detect unused content
on special remotes, instead use `git annex unused --from`. Example:
$ git annex unused --from mys3
unused mys3 (checking for unused data...)
Some annexed data on mys3 is not used by any files in this repository.
NUMBER KEY
1 WORM-s3-m1301674316--foo
(To see where data was previously used, try: git log --stat -S'KEY')
(To remove unwanted data: git-annex dropunused --from mys3 NUMBER)
Please be cautious -- are you sure that the remote repository
does not use this data?
$ git annex dropunused --from mys3 1
dropunused 12948 (from mys3...) ok
Do be cautious when using this; it cannot detect if content in a remote
is used by that remote, or is the last copy of data that is used by
some *other* remote.