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diff --git a/Command/Add.hs b/Command/Add.hs
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+++ b/Command/Add.hs
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+{- git-annex command
+ -
+ - Copyright 2010 Joey Hess <joey@kitenet.net>
+ -
+ - Licensed under the GNU GPL version 3 or higher.
+ -}
+
+module Command.Add where
+
+import Control.Monad.State (liftIO)
+import System.Posix.Files
+import System.Directory
+
+import Command
+import qualified Annex
+import Utility
+import Locations
+import qualified Backend
+import LocationLog
+import Types
+import Core
+
+{- The add subcommand annexes a file, storing it in a backend, and then
+ - moving it into the annex directory and setting up the symlink pointing
+ - to its content. -}
+start :: SubCmdStartBackendFile
+start pair@(file, _) = notAnnexed file $ do
+	s <- liftIO $ getSymbolicLinkStatus file
+	if ((isSymbolicLink s) || (not $ isRegularFile s))
+		then return Nothing
+		else do
+			showStart "add" file
+			return $ Just $ perform pair
+
+perform :: (FilePath, Maybe Backend) -> SubCmdPerform
+perform (file, backend) = do
+	stored <- Backend.storeFileKey file backend
+	case (stored) of
+		Nothing -> return Nothing
+		Just (key, _) -> return $ Just $ cleanup file key
+
+cleanup :: FilePath -> Key -> SubCmdCleanup
+cleanup file key = do
+	logStatus key ValuePresent
+	g <- Annex.gitRepo
+	let dest = annexLocation g key
+	liftIO $ createDirectoryIfMissing True (parentDir dest)
+	liftIO $ renameFile file dest
+	link <- calcGitLink file key
+	liftIO $ createSymbolicLink link file
+	Annex.queue "add" [] file
+	return True