git-annex/Config/Smudge.hs
2018-08-29 09:20:25 -04:00

41 lines
1.4 KiB
Haskell

{- Git smudge filter configuration
-
- Copyright 2011-2018 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Config.Smudge where
import Annex.Common
import qualified Annex
import qualified Git
import qualified Git.Command
import Config
configureSmudgeFilter :: Annex ()
configureSmudgeFilter = unlessM (fromRepo Git.repoIsLocalBare) $ do
-- If this is run in a newly cloned repository, git may not have
-- cached file information in the index yet, and so after
-- configuring the clean filter, the next git status would want to
-- run it on every file. That is expensive and can also result in
-- unexpected changes when the file is checked into git or annex
-- counter to the annex.largefiles configuration.
-- Avoid that problem by running git status now.
inRepo $ Git.Command.runQuiet [Param "status", Param "--porcelain"]
setConfig (ConfigKey "filter.annex.smudge") "git-annex smudge %f"
setConfig (ConfigKey "filter.annex.clean") "git-annex smudge --clean %f"
lf <- Annex.fromRepo Git.attributesLocal
gf <- Annex.fromRepo Git.attributes
lfs <- readattr lf
gfs <- readattr gf
liftIO $ unless ("filter=annex" `isInfixOf` (lfs ++ gfs)) $ do
createDirectoryIfMissing True (takeDirectory lf)
writeFile lf (lfs ++ "\n" ++ stdattr)
where
readattr = liftIO . catchDefaultIO "" . readFileStrict
stdattr = unlines
[ "* filter=annex"
, ".* !filter"
]