git-annex/Config.hs
Joey Hess b40df4f0d0 reorganize numcopies code (no behavior changes)
Move stuff into Logs.NumCopies. Add a NumCopies newtype.

Better names for various serialization classes that are specific to one
thing or another.
2014-01-21 16:08:59 -04:00

89 lines
3 KiB
Haskell

{- Git configuration
-
- Copyright 2011-2014 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Config where
import Common.Annex
import qualified Git
import qualified Git.Config
import qualified Git.Command
import qualified Annex
import Config.Cost
import Types.Availability
type UnqualifiedConfigKey = String
data ConfigKey = ConfigKey String
instance Show ConfigKey where
show (ConfigKey s) = s
{- Looks up a setting in git config. -}
getConfig :: ConfigKey -> String -> Annex String
getConfig (ConfigKey key) def = fromRepo $ Git.Config.get key def
getConfigMaybe :: ConfigKey -> Annex (Maybe String)
getConfigMaybe (ConfigKey key) = fromRepo $ Git.Config.getMaybe key
{- Changes a git config setting in both internal state and .git/config -}
setConfig :: ConfigKey -> String -> Annex ()
setConfig (ConfigKey key) value = do
inRepo $ Git.Command.run [Param "config", Param key, Param value]
Annex.changeGitRepo =<< inRepo Git.Config.reRead
{- Unsets a git config setting. (Leaves it in state currently.) -}
unsetConfig :: ConfigKey -> Annex ()
unsetConfig ck@(ConfigKey key) = ifM (isJust <$> getConfigMaybe ck)
( inRepo $ Git.Command.run
[Param "config", Param "--unset", Param key]
, noop -- avoid unsetting something not set; that would fail
)
{- A per-remote config setting in git config. -}
remoteConfig :: Git.Repo -> UnqualifiedConfigKey -> ConfigKey
remoteConfig r key = ConfigKey $
"remote." ++ fromMaybe "" (Git.remoteName r) ++ ".annex-" ++ key
{- A global annex setting in git config. -}
annexConfig :: UnqualifiedConfigKey -> ConfigKey
annexConfig key = ConfigKey $ "annex." ++ key
{- Calculates cost for a remote. Either the specific default, or as configured
- by remote.<name>.annex-cost, or if remote.<name>.annex-cost-command
- is set and prints a number, that is used. -}
remoteCost :: RemoteGitConfig -> Cost -> Annex Cost
remoteCost c def = fromMaybe def <$> remoteCost' c
remoteCost' :: RemoteGitConfig -> Annex (Maybe Cost)
remoteCost' c = case remoteAnnexCostCommand c of
Just cmd | not (null cmd) -> liftIO $
readish <$> readProcess "sh" ["-c", cmd]
_ -> return $ remoteAnnexCost c
setRemoteCost :: Git.Repo -> Cost -> Annex ()
setRemoteCost r c = setConfig (remoteConfig r "cost") (show c)
setRemoteAvailability :: Git.Repo -> Availability -> Annex ()
setRemoteAvailability r c = setConfig (remoteConfig r "availability") (show c)
isDirect :: Annex Bool
isDirect = annexDirect <$> Annex.getGitConfig
crippledFileSystem :: Annex Bool
crippledFileSystem = annexCrippledFileSystem <$> Annex.getGitConfig
setCrippledFileSystem :: Bool -> Annex ()
setCrippledFileSystem b = do
setConfig (annexConfig "crippledfilesystem") (Git.Config.boolConfig b)
Annex.changeGitConfig $ \c -> c { annexCrippledFileSystem = b }
{- Gets the http headers to use. -}
getHttpHeaders :: Annex [String]
getHttpHeaders = do
v <- annexHttpHeadersCommand <$> Annex.getGitConfig
case v of
Just cmd -> lines <$> liftIO (readProcess "sh" ["-c", cmd])
Nothing -> annexHttpHeaders <$> Annex.getGitConfig