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{- git-annex core functions -}
module Core where
import System.IO
import System.Directory
import Control.Monad.State (liftIO)
import Types
import Locations
import UUID
import qualified GitRepo as Git
import qualified Annex
{- Sets up a git repo for git-annex. May be called repeatedly. -}
gitSetup :: Annex ()
gitSetup = do
g <- Annex.gitRepo
liftIO $ setupattributes g
prepUUID
where
-- configure git to use union merge driver on state files
setupattributes repo = do
exists <- doesFileExist attributes
if (not exists)
then do
writeFile attributes $ attrLine ++ "\n"
commit
else do
content <- readFile attributes
if (all (/= attrLine) (lines content))
then do
appendFile attributes $ attrLine ++ "\n"
commit
else return ()
where
attrLine = stateLoc ++ "/*.log merge=union"
attributes = Git.attributes repo
commit = do
Git.run repo ["add", attributes]
Git.run repo ["commit", "-m", "git-annex setup",
attributes]
{- Checks if a given key is currently present in the annexLocation -}
inAnnex :: Backend -> Key -> Annex Bool
inAnnex backend key = do
g <- Annex.gitRepo
liftIO $ doesFileExist $ annexLocation g backend key
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