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|
{- git-annex repository-global config log
-
- Copyright 2017-2019 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
module Logs.Config (
ConfigKey(..),
ConfigValue(..),
setGlobalConfig,
unsetGlobalConfig,
getGlobalConfig,
loadGlobalConfig,
) where
import Annex.Common
import Logs
import Logs.MapLog
import qualified Annex.Branch
import Git.Types (ConfigKey(..), ConfigValue(..))
import qualified Data.Map as M
import qualified Data.ByteString as S
import qualified Data.ByteString.Lazy as L
import qualified Data.Attoparsec.ByteString.Lazy as A
import Data.ByteString.Builder
setGlobalConfig :: ConfigKey -> ConfigValue -> Annex ()
setGlobalConfig name new = do
curr <- getGlobalConfig name
when (curr /= Just new) $
setGlobalConfig' name new
setGlobalConfig' :: ConfigKey -> ConfigValue -> Annex ()
setGlobalConfig' name new = do
c <- currentVectorClock
Annex.Branch.change (Annex.Branch.RegardingUUID []) configLog $
buildGlobalConfig . changeMapLog c name new . parseGlobalConfig
unsetGlobalConfig :: ConfigKey -> Annex ()
unsetGlobalConfig name = do
curr <- getGlobalConfig name
when (curr /= Nothing) $
-- set to empty string to unset
setGlobalConfig' name (ConfigValue mempty)
-- Reads the global config log every time.
-- It's more efficient to use Config.GitConfig.
getGlobalConfig :: ConfigKey -> Annex (Maybe ConfigValue)
getGlobalConfig name = M.lookup name <$> loadGlobalConfig
buildGlobalConfig :: MapLog ConfigKey ConfigValue -> Builder
buildGlobalConfig = buildMapLog configkeybuilder valuebuilder
where
configkeybuilder (ConfigKey k) = byteString k
valuebuilder (ConfigValue v) = byteString v
valuebuilder NoConfigValue = mempty
parseGlobalConfig :: L.ByteString -> MapLog ConfigKey ConfigValue
parseGlobalConfig = parseMapLog configkeyparser valueparser
where
configkeyparser = ConfigKey <$> A.takeByteString
valueparser = ConfigValue <$> A.takeByteString
loadGlobalConfig :: Annex (M.Map ConfigKey ConfigValue)
loadGlobalConfig = M.filter nonempty
. simpleMap
. parseGlobalConfig
<$> Annex.Branch.get configLog
where
nonempty (ConfigValue v) = not (S.null v)
nonempty NoConfigValue = True
|
