git-annex/Config/Smudge.hs
Joey Hess 53da7f1cf8
update uninit to handle all the v7 stuff
* uninit: Remove several git hooks that git-annex init sets up.
* uninit: Remove the smudge and clean filters that git-annex init sets up.
2019-10-08 14:34:00 -04:00

56 lines
2 KiB
Haskell

{- Git smudge filter configuration
-
- Copyright 2011-2019 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL 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" ++ unlines stdattr)
where
readattr = liftIO . catchDefaultIO "" . readFileStrict
stdattr :: [String]
stdattr =
[ "* filter=annex"
, ".* !filter"
]
-- Note that this removes the local git attributes for filtering,
-- which is what git-annex installed, but it does not change anything
-- that may have been committed to a .gitattributes in the repository.
-- git-annex does not commit that.
deconfigureSmudgeFilter :: Annex ()
deconfigureSmudgeFilter = do
lf <- Annex.fromRepo Git.attributesLocal
ls <- liftIO $ catchDefaultIO [] $ lines <$> readFileStrict lf
liftIO $ writeFile lf $ unlines $
filter (\l -> l `notElem` stdattr && not (null l)) ls
unsetConfig (ConfigKey "filter.annex.smudge")
unsetConfig (ConfigKey "filter.annex.clean")