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{- Logs listing keys that are equivalent to a key.
-
- Copyright 2024-2025 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
{-# LANGUAGE BangPatterns #-}
module Logs.EquivilantKeys (
getEquivilantKeys,
setEquivilantKey,
updateEquivilantKeys,
addEquivilantKey,
generateEquivilantKey,
) where
import Annex.Common
import qualified Annex
import Logs
import Logs.Presence
import qualified Annex.Branch
import qualified Backend.Hash
import Types.KeySource
import Types.Backend
import Types.Remote (Verification(..))
import Utility.Metered
getEquivilantKeys :: Key -> Annex [Key]
getEquivilantKeys key = do
config <- Annex.getGitConfig
nub . mapMaybe (deserializeKey' . fromLogInfo)
<$> presentLogInfo (equivilantKeysLogFile config key)
setEquivilantKey :: Key -> Key -> Annex ()
setEquivilantKey key equivkey = do
config <- Annex.getGitConfig
addLog (Annex.Branch.RegardingUUID []) (equivilantKeysLogFile config key)
InfoPresent (LogInfo (serializeKey' equivkey))
-- This returns Verified when when an equivilant key has been added to the
-- log (or was already in the log). This is to avoid hashing the object
-- again later.
updateEquivilantKeys :: Backend -> OsPath -> Key -> [Key] -> Annex (Maybe Verification)
updateEquivilantKeys b obj key eks = generateEquivilantKey b obj >>= \case
Nothing -> return Nothing
Just ek -> do
unless (ek `elem` eks) $
setEquivilantKey key ek
return (Just Verified)
addEquivilantKey :: Backend -> Key -> OsPath -> Annex (Maybe Verification)
addEquivilantKey b key obj =
updateEquivilantKeys b obj key
=<< getEquivilantKeys key
-- The Backend must use a cryptographically secure hash.
generateEquivilantKey :: Backend -> OsPath -> Annex (Maybe Key)
generateEquivilantKey b obj =
case genKey b of
Just genkey -> do
showSideAction (UnquotedString Backend.Hash.descChecksum)
Just <$> genkey source nullMeterUpdate
Nothing -> return Nothing
where
source = KeySource
{ keyFilename = mempty -- avoid adding any extension
, contentLocation = obj
, inodeCache = Nothing
}
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