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Support hot-swapping of removable drives containing gcrypt repositories.

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To support this, a core.gcrypt-id is stored by git-annex inside the git
config of a local gcrypt repository, when setting it up.

That is compared with the remote's cached gcrypt-id. When different, a
drive has been changed. git-annex then looks up the remote config for
the uuid mapped from the core.gcrypt-id, and tweaks the configuration
appropriately. When there is no known config for the uuid, it will refuse to
use the remote.
This commit is contained in:
Joey Hess 2013-09-12 15:54:35 -04:00
parent 5aecf2b42d
commit 5fe49b98f8
15 changed files with 85 additions and 42 deletions
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4
Remote/Git.hs
View file

@ -92,13 +92,13 @@ configRead r = do
(False, _, NoUUID) -> tryGitConfigRead r
_ -> return r
gen :: Git.Repo -> UUID -> RemoteConfig -> RemoteGitConfig -> Annex Remote
gen :: Git.Repo -> UUID -> RemoteConfig -> RemoteGitConfig -> Annex (Maybe Remote)
gen r u c gc
| Git.GCrypt.isEncrypted r = Remote.GCrypt.gen r u c gc
| otherwise = go <$> remoteCost gc defcst
where
defcst = if repoCheap r then cheapRemoteCost else expensiveRemoteCost
go cst = new
go cst = Just new
where
new = Remote
{ uuid = u