diff options
Diffstat (limited to 'Backend.hs')
| -rw-r--r-- | Backend.hs | 41 |
1 files changed, 4 insertions, 37 deletions
diff --git a/Backend.hs b/Backend.hs index 076f7c2ce..6bbf3f75e 100644 --- a/Backend.hs +++ b/Backend.hs @@ -17,12 +17,11 @@ module Backend ( maybeLookupBackendName ) where -import System.Posix.Files - import Common.Annex import qualified Annex import Annex.CheckAttr import Annex.CatFile +import Annex.Link import Types.Key import Types.KeySource import qualified Types.Backend as B @@ -77,15 +76,12 @@ genKey' (b:bs) source = do | otherwise = c {- Looks up the key and backend corresponding to an annexed file, - - by examining what the file symlinks to. + - by examining what the file links to. - - - In direct mode, there is often no symlink on disk, in which case - - the symlink is looked up in git instead. However, a real symlink + - In direct mode, there is often no link on disk, in which case + - the symlink is looked up in git instead. However, a real link - on disk still takes precedence over what was committed to git in direct - mode. - - - - On a filesystem that does not support symlinks, git will instead store - - the symlink target in a regular file. -} lookupFile :: FilePath -> Annex (Maybe (Key, Backend)) lookupFile file = do @@ -107,35 +103,6 @@ lookupFile file = do " (unknown backend " ++ bname ++ ")" return Nothing -{- Checks if a file is a symlink to a key. - - - - On a filesystem that does not support symlinks, git will instead store - - the symlink target in a regular file. (Only look at first 8k of file, - - more than enough for any symlink target.) - -} -isAnnexLink :: FilePath -> Annex (Maybe Key) -isAnnexLink file = maybe Nothing makekey <$> gettarget - where - gettarget = ifM (coreSymlinks <$> Annex.getGitConfig) - ( liftIO $ catchMaybeIO $ readSymbolicLink file - , liftIO $ catchMaybeIO $ take 8192 <$> readFile file - ) - makekey l - | isLinkToAnnex l = fileKey $ takeFileName l - | otherwise = Nothing - -{- Creates a symlink on disk. - - - - On a filesystem that does not support symlinks, writes the link target - - to a file. Note that git will only treat the file as a symlink if - - it's staged as such. - -} -makeAnnexLink :: String -> FilePath -> Annex () -makeAnnexLink linktarget file = ifM (coreSymlinks <$> Annex.getGitConfig) - ( liftIO $ createSymbolicLink linktarget file - , liftIO $ writeFile file linktarget - ) - {- Looks up the backend that should be used for a file. - That can be configured on a per-file basis in the gitattributes file. -} chooseBackend :: FilePath -> Annex (Maybe Backend) |