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Joey Hess 2010-11-01 19:11:06 -04:00
parent 2926cc64fb
commit f1f4bdcd60
1 changed files with 17 additions and 2 deletions
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doc/backends.mdwn
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@ -6,8 +6,8 @@ When a file is annexed, a key is generated from its content and/or metadata.
The file checked into git symlinks to the key. This key can later be used
to retrieve the file's content (its value).
Multiple pluggable backends are supported, and more than one can be used
to store different files' contents in a given repository.
Multiple pluggable backends are supported, and a single repository
can use different backends for different files.
* `WORM` ("Write Once, Read Many") This backend stores the file's content
only in `.git/annex/`, and assumes that any file with the same basename,
@ -20,3 +20,18 @@ to store different files' contents in a given repository.
can make it slower for large files. **Warning** this backend is not ready
for use.
* `URL` -- This backend downloads the file's content from an external URL.
The `annex.backends` git-config setting can be used to list the backends
git-annex should use. The first one listed will be used by default when
new files are added.
For finer control of what backend is used when adding different types of
files, the `.gitattributes` file can be used. The `git-annex-backend`
attribute can be set to the name of the backend to use for matching files.
For example, to use the SHA1 backend for sound files, which tend to be
smallish and might be modified over time, you could set in
`.gitattributes`:
*.mp3 git-annex-backend=SHA1
*.ogg git-annex-backend=SHA1