import: Fix failure of cross-device import on Windows.

As well as import, 2 other places ran "mv" manually, so changed them to use
moveFile as well.

Command/Reinject.hs

@@ -50,11 +50,13 @@ perform src dest key = do
 				)
   where
 	-- the file might be on a different filesystem,
-	-- so mv is used rather than simply calling
+	-- so moveFile is used rather than simply calling
 	-- moveToObjectDir; disk space is also
 	-- checked this way.
 	move = getViaTmp key $ \tmp ->
-		liftIO $ boolSystem "mv" [File src, File tmp]
+		liftIO $ catchBoolIO $ do
+			moveFile src tmp
+			return True
 	reject = const $ return "wrong file?"
 
 cleanup :: Key -> CommandCleanup

Command/SetKey.hs

@@ -31,13 +31,14 @@ mkKey = fromMaybe (error "bad key") . file2key
 
 perform :: FilePath -> Key -> CommandPerform
 perform file key = do
-	-- the file might be on a different filesystem, so mv is used
+	-- the file might be on a different filesystem, so moveFile is used
 	-- rather than simply calling moveAnnex; disk space is also
 	-- checked this way.
 	ok <- getViaTmp key $ \dest ->
 		if dest /= file
-			then liftIO $
-				boolSystem "mv" [File file, File dest]
+			then liftIO $ catchBoolIO $ do
+				moveFile file dest
+				return True
 		else return True
 	if ok
 		then next $ cleanup key

Utility/Directory.hs

@@ -107,21 +107,32 @@ moveFile src dest = tryIO (rename src dest) >>= onrename
 	onrename (Left e)
 		| isPermissionError e = rethrow
 		| isDoesNotExistError e = rethrow
-		| otherwise = do
-			-- copyFile is likely not as optimised as
-			-- the mv command, so we'll use the latter.
-			-- But, mv will move into a directory if
-			-- dest is one, which is not desired.
-			whenM (isdir dest) rethrow
-			viaTmp mv dest ""
+		| otherwise = viaTmp mv dest ""
 	  where
 		rethrow = throwM e
+
 		mv tmp _ = do
+		-- copyFile is likely not as optimised as
+		-- the mv command, so we'll use the command.
+		--
+		-- But, while Windows has a "mv", it does not seem very
+		-- reliable, so use copyFile there.
+#ifndef mingw32_HOST_OS	
+			-- If dest is a directory, mv would move the file
+			-- into it, which is not desired.
+			whenM (isdir dest) rethrow
 			ok <- boolSystem "mv" [Param "-f", Param src, Param tmp]
+			let e' = e
+#else
+			r <- tryIO $ copyFile src tmp
+			let (ok, e') = case r of
+				Left e' -> (False, e')
+				Right _ -> (True, e)
+#endif
 			unless ok $ do
 				-- delete any partial
 				_ <- tryIO $ removeFile tmp
-				rethrow
+				throwM e'
 
 	isdir f = do
 		r <- tryIO $ getFileStatus f

debian/changelog

@@ -21,6 +21,7 @@ git-annex (5.20150618) UNRELEASED; urgency=medium
     git init --shared=world.
   * On linux, pass --as-needed to linker to avoid linking with unused
     shared libraries including libyaml.
+  * import: Fix failure of cross-device import on Windows.
 
  -- Joey Hess <id@joeyh.name>  Thu, 02 Jul 2015 12:31:14 -0400