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Joey Hess 2013-02-18 02:35:38 -04:00
parent 169712fc9a
commit 9aa979edbd
1 changed files with 6 additions and 4 deletions
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Annex/Link.hs
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@ -19,6 +19,8 @@ import qualified Git.UpdateIndex
import qualified Annex.Queue import qualified Annex.Queue
import Git.Types import Git.Types
type LinkTarget = String
{- Checks if a file is a link to a key. -} {- Checks if a file is a link to a key. -}
isAnnexLink :: FilePath -> Annex (Maybe Key) isAnnexLink :: FilePath -> Annex (Maybe Key)
isAnnexLink file = maybe Nothing (fileKey . takeFileName) <$> getAnnexLinkTarget file isAnnexLink file = maybe Nothing (fileKey . takeFileName) <$> getAnnexLinkTarget file
@ -32,7 +34,7 @@ isAnnexLink file = maybe Nothing (fileKey . takeFileName) <$> getAnnexLinkTarget
- Returns Nothing if the file is not a symlink, or not a link to annex - Returns Nothing if the file is not a symlink, or not a link to annex
- content. - content.
-} -}
getAnnexLinkTarget :: FilePath -> Annex (Maybe String) getAnnexLinkTarget :: FilePath -> Annex (Maybe LinkTarget)
getAnnexLinkTarget file = do getAnnexLinkTarget file = do
v <- ifM (coreSymlinks <$> Annex.getGitConfig) v <- ifM (coreSymlinks <$> Annex.getGitConfig)
( liftIO $ catchMaybeIO $ readSymbolicLink file ( liftIO $ catchMaybeIO $ readSymbolicLink file
@ -51,20 +53,20 @@ getAnnexLinkTarget file = do
- it's staged as such, so use addAnnexLink when adding a new file or - it's staged as such, so use addAnnexLink when adding a new file or
- modified link to git. - modified link to git.
-} -}
makeAnnexLink :: String -> FilePath -> Annex () makeAnnexLink :: LinkTarget -> FilePath -> Annex ()
makeAnnexLink linktarget file = ifM (coreSymlinks <$> Annex.getGitConfig) makeAnnexLink linktarget file = ifM (coreSymlinks <$> Annex.getGitConfig)
( liftIO $ createSymbolicLink linktarget file ( liftIO $ createSymbolicLink linktarget file
, liftIO $ writeFile file linktarget , liftIO $ writeFile file linktarget
) )
{- Creates a link on disk, and additionally stages it in git. -} {- Creates a link on disk, and additionally stages it in git. -}
addAnnexLink :: String -> FilePath -> Annex () addAnnexLink :: LinkTarget -> FilePath -> Annex ()
addAnnexLink linktarget file = do addAnnexLink linktarget file = do
makeAnnexLink linktarget file makeAnnexLink linktarget file
stageSymlink file =<< hashSymlink linktarget stageSymlink file =<< hashSymlink linktarget
{- Injects a symlink target into git, returning its Sha. -} {- Injects a symlink target into git, returning its Sha. -}
hashSymlink :: String -> Annex Sha hashSymlink :: LinkTarget -> Annex Sha
hashSymlink linktarget = inRepo $ Git.HashObject.hashObject BlobObject linktarget hashSymlink linktarget = inRepo $ Git.HashObject.hashObject BlobObject linktarget
{- Stages a symlink to the annex, using a Sha of its target. -} {- Stages a symlink to the annex, using a Sha of its target. -}