fa62c98910
This eliminates the distinction between decodeBS and decodeBS', encodeBS and encodeBS', etc. The old implementation truncated at NUL, and the primed versions had to do extra work to avoid that problem. The new implementation does not truncate at NUL, and is also a lot faster. (Benchmarked at 2x faster for decodeBS and 3x for encodeBS; more for the primed versions.) Note that filepath-bytestring 1.4.2.1.8 contains the same optimisation, and upgrading to it will speed up to/fromRawFilePath. AFAIK, nothing relied on the old behavior of truncating at NUL. Some code used the faster versions in places where I was sure there would not be a NUL. So this change is unlikely to break anything. Also, moved s2w8 and w82s out of the module, as they do not involve filesystem encoding really. Sponsored-by: Shae Erisson on Patreon
92 lines
2.4 KiB
Haskell
92 lines
2.4 KiB
Haskell
{- git-annex command
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-
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- Copyright 2017-2020 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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{-# LANGUAGE OverloadedStrings #-}
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module Command.Config where
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import Command
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import Logs.Config
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import Config
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import Types.GitConfig (globalConfigs)
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import Git.Types (fromConfigValue)
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import qualified Data.ByteString.Char8 as S8
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cmd :: Command
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cmd = noMessages $ command "config" SectionSetup
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"configuration stored in git-annex branch"
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paramNothing (seek <$$> optParser)
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data Action
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= SetConfig ConfigKey ConfigValue
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| GetConfig ConfigKey
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| UnsetConfig ConfigKey
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type Name = String
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type Value = String
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optParser :: CmdParamsDesc -> Parser Action
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optParser _ = setconfig <|> getconfig <|> unsetconfig
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where
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setconfig = SetConfig
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<$> strOption
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( long "set"
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<> help "set configuration"
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<> metavar paramName
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)
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<*> strArgument
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( metavar paramValue
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)
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getconfig = GetConfig <$> strOption
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( long "get"
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<> help "get configuration"
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<> metavar paramName
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)
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unsetconfig = UnsetConfig <$> strOption
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( long "unset"
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<> help "unset configuration"
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<> metavar paramName
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)
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seek :: Action -> CommandSeek
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seek (SetConfig ck@(ConfigKey name) val) = checkIsGlobalConfig ck $ commandAction $
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startingUsualMessages (decodeBS name) ai si $ do
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setGlobalConfig ck val
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when (needLocalUpdate ck) $
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setConfig ck (fromConfigValue val)
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next $ return True
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where
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ai = ActionItemOther (Just (fromConfigValue val))
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si = SeekInput [decodeBS name]
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seek (UnsetConfig ck@(ConfigKey name)) = checkIsGlobalConfig ck $ commandAction $
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startingUsualMessages (decodeBS name) ai si $ do
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unsetGlobalConfig ck
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when (needLocalUpdate ck) $
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unsetConfig ck
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next $ return True
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where
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ai = ActionItemOther (Just "unset")
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si = SeekInput [decodeBS name]
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seek (GetConfig ck) = checkIsGlobalConfig ck $ commandAction $
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startingCustomOutput ai $ do
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getGlobalConfig ck >>= \case
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Just (ConfigValue v) -> liftIO $ S8.putStrLn v
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Just NoConfigValue -> return ()
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Nothing -> return ()
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next $ return True
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where
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ai = ActionItemOther Nothing
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checkIsGlobalConfig :: ConfigKey -> Annex a -> Annex a
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checkIsGlobalConfig ck@(ConfigKey name) a
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| elem ck globalConfigs = a
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| otherwise = giveup $ decodeBS name ++ " is not a configuration setting that can be stored in the git-annex branch"
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needLocalUpdate :: ConfigKey -> Bool
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needLocalUpdate (ConfigKey "annex.securehashesonly") = True
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needLocalUpdate _ = False
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