4ca3d1d584and one tail Removed head from Utility.PartialPrelude in order to avoid the build warning with recent ghc versions as well.
41 lines
1.2 KiB
Haskell
41 lines
1.2 KiB
Haskell
{- git-annex backend varieties
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-
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- Copyright 2012-2024 Joey Hess <id@joeyh.name>
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-
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- Licensed under the GNU AGPL version 3 or higher.
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-}
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module Backend.Variety where
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import qualified Data.Map as M
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import Annex.Common
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import Types.Key
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import Types.Backend
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import qualified Backend.External
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-- When adding a new backend, import it here and add it to the builtinList.
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import qualified Backend.Hash
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import qualified Backend.WORM
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import qualified Backend.URL
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import qualified Backend.GitRemoteAnnex
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{- Regular backends. Does not include externals or VURL. -}
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regularBackendList :: [Backend]
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regularBackendList = Backend.Hash.backends
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++ Backend.WORM.backends
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++ Backend.URL.backends
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++ Backend.GitRemoteAnnex.backends
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{- The default hashing backend. -}
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defaultHashBackend :: Backend
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defaultHashBackend = fromMaybe (error "internal") $ headMaybe regularBackendList
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makeVarietyMap :: [Backend] -> M.Map KeyVariety Backend
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makeVarietyMap l = M.fromList $ zip (map backendVariety l) l
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maybeLookupBackendVarietyMap :: KeyVariety -> M.Map KeyVariety Backend -> Annex (Maybe Backend)
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maybeLookupBackendVarietyMap (ExternalKey s hasext) _varitymap =
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Just <$> Backend.External.makeBackend s hasext
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maybeLookupBackendVarietyMap v varietymap =
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pure $ M.lookup v varietymap
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