git-annex/Remote/Helper/ReadOnly.hs

46 lines
1.1 KiB
Haskell

{- Adds readonly support to remotes.
-
- Copyright 2013, 2015 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Remote.Helper.ReadOnly
( adjustReadOnly
, readonlyStoreKey
, readonlyStorer
, readonlyRemoveKey
) where
import Common.Annex
import Types.Remote
import Types.StoreRetrieve
import Utility.Metered
{- Adds support for read-only remotes, by replacing the
- methods that write to a remote with dummies that fail.
-
- Note that disabling git pushes to remotes is not handled here.
-}
adjustReadOnly :: Remote -> Remote
adjustReadOnly r
| remoteAnnexReadOnly (gitconfig r) = r
{ storeKey = readonlyStoreKey
, removeKey = readonlyRemoveKey
, repairRepo = Nothing
}
| otherwise = r
readonlyStoreKey :: Key -> AssociatedFile -> MeterUpdate -> Annex Bool
readonlyStoreKey _ _ _ = readonlyFail
readonlyRemoveKey :: Key -> Annex Bool
readonlyRemoveKey _ = readonlyFail
readonlyStorer :: Storer
readonlyStorer _ _ _ = readonlyFail
readonlyFail :: Annex Bool
readonlyFail = do
warning "this remote is readonly"
return False