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-rw-r--r--Branch.hs16
1 files changed, 11 insertions, 5 deletions
diff --git a/Branch.hs b/Branch.hs
index 82ae7029f..f1ba97c94 100644
--- a/Branch.hs
+++ b/Branch.hs
@@ -32,6 +32,8 @@ import System.Posix.IO
import System.Posix.Files
import System.Exit
import qualified Data.ByteString.Lazy.Char8 as L
+import Control.Monad.IO.Control (liftIOOp)
+import qualified Control.Exception.Base
import Types.BranchState
import qualified Git
@@ -345,8 +347,12 @@ fileJournal = replace "//" "_" . replace "_" "/"
lockJournal :: Annex a -> Annex a
lockJournal a = do
g <- Annex.gitRepo
- h <- liftIO $ createFile (gitAnnexJournalLock g) stdFileMode
- liftIO $ waitToSetLock h (WriteLock, AbsoluteSeek, 0, 0)
- r <- a
- liftIO $ closeFd h
- return r
+ let file = gitAnnexJournalLock g
+ liftIOOp (Control.Exception.Base.bracket (lock file) unlock) run
+ where
+ lock file = do
+ l <- createFile file stdFileMode
+ waitToSetLock l (WriteLock, AbsoluteSeek, 0, 0)
+ return l
+ unlock = closeFd
+ run _ = a