replace (Key, Backend) with Key

Only fsck and reinject and the test suite used the Backend, and they can
look it up as needed from the Key. This simplifies the code and also speeds
it up.

There is a small behavior change here. Before, all commands would warn when
acting on an annexed file with an unknown backend. Now, only fsck and
reinject show that warning.

1 files changed, 2 insertions, 2 deletions

diff --git a/Command/Unused.hs b/Command/Unused.hs
index 3e844e5a8..5815bbf29 100644
--- a/Command/Unused.hs
+++ b/Command/Unused.hs
@@ -250,7 +250,7 @@ withKeysReferenced' mdir initial a = do
 		x <- Backend.lookupFile f
 		case x of
 			Nothing -> go v fs
-			Just (k, _) -> do
+			Just k -> do
 				!v' <- a k f v
 				go v' fs
 
@@ -294,7 +294,7 @@ withKeysReferencedInGitRef a ref = do
 	forM_ ts $ tKey lookAtWorkingTree >=> maybe noop a
 	liftIO $ void clean
   where
-	tKey True = fmap fst <$$> Backend.lookupFile . getTopFilePath . DiffTree.file
+	tKey True = Backend.lookupFile . getTopFilePath . DiffTree.file
 	tKey False = fileKey . takeFileName . decodeBS <$$>
 		catFile ref . getTopFilePath . DiffTree.file