better command name

Command/Reinject.hs

@@ -0,0 +1,51 @@
+{- git-annex command
+ -
+ - Copyright 2011 Joey Hess <joey@kitenet.net>
+ -
+ - Licensed under the GNU GPL version 3 or higher.
+ -}
+
+module Command.Reinject where
+
+import Common.Annex
+import Command
+import Logs.Location
+import Annex.Content
+import qualified Command.Fsck
+
+def :: [Command]
+def = [command "reinject" (paramPair paramPath paramPath) seek
+	"sets content of annexed file"]
+
+seek :: [CommandSeek]
+seek = [withWords start]
+
+start :: [FilePath] -> CommandStart
+start (src:dest:[]) = do
+	showStart "reinject" dest
+	next $ perform src dest
+start _ = error "specify a src file and a dest file"
+
+perform :: FilePath -> FilePath -> CommandPerform
+perform src dest = isAnnexed dest $ \(key, backend) -> do
+	unlessM (move key) $ error "mv failed!"
+	next $ cleanup key backend
+	where
+		-- the file might be on a different filesystem,
+		-- so mv is used rather than simply calling
+		-- moveToObjectDir; disk space is also
+		-- checked this way.
+		move key = getViaTmp key $ \tmp ->
+			if dest /= src
+			then liftIO $ boolSystem "mv" [File src, File tmp]
+			else return True
+
+cleanup :: Key -> Backend Annex -> CommandCleanup
+cleanup key backend = do
+	logStatus key InfoPresent
+
+	-- fsck the new content
+	size_ok <- Command.Fsck.checkKeySize key
+	backend_ok <- Command.Fsck.checkBackend backend key
+
+	return $ size_ok && backend_ok