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