on second thought, InodeCache should use getFileSize

This is necessary for interop between inode caches created on unix and
windows. Which is more important than supporting inodecaches for large keys
with the wrong size, which are broken anyway.

There should be no slowdown from this change, except on Windows.

Annex/Content/Direct.hs

@@ -174,10 +174,10 @@ sameInodeCache file old = go =<< withTSDelta (liftIO . genInodeCache file)
 	go (Just curr) = elemInodeCaches curr old
 
 {- Checks if a FileStatus matches the recorded InodeCache of a file. -}
-sameFileStatus :: Key -> FileStatus -> Annex Bool
-sameFileStatus key status = do
+sameFileStatus :: Key -> FilePath -> FileStatus -> Annex Bool
+sameFileStatus key f status = do
 	old <- recordedInodeCache key
-	curr <- withTSDelta $ \delta -> liftIO $ toInodeCache delta status
+	curr <- withTSDelta $ \delta -> liftIO $ toInodeCache delta f status
 	case (old, curr) of
 		(_, Just c) -> elemInodeCaches c old
 		([], Nothing) -> return True

Annex/Direct.hs

@@ -56,7 +56,7 @@ stageDirect = do
 	go (file, Just sha, Just mode) = withTSDelta $ \delta -> do
 		shakey <- catKey sha mode
 		mstat <- liftIO $ catchMaybeIO $ getSymbolicLinkStatus file
-		mcache <- liftIO $ maybe (pure Nothing) (toInodeCache delta) mstat
+		mcache <- liftIO $ maybe (pure Nothing) (toInodeCache delta file) mstat
 		filekey <- isAnnexLink file
 		case (shakey, filekey, mstat, mcache) of
 			(_, Just key, _, _)

Assistant/Threads/Watcher.hs

@@ -224,7 +224,7 @@ onAddDirect symlinkssupported matcher file fs = do
 	v <- liftAnnex $ catKeyFile file
 	case (v, fs) of
 		(Just key, Just filestatus) ->
-			ifM (liftAnnex $ sameFileStatus key filestatus)
+			ifM (liftAnnex $ sameFileStatus key file filestatus)
 				{- It's possible to get an add event for
 				 - an existing file that is not
 				 - really modified, but it might have

Command/Add.hs

@@ -160,8 +160,9 @@ ingest Nothing = return (Nothing, Nothing)
 ingest (Just source) = withTSDelta $ \delta -> do
 	backend <- chooseBackend $ keyFilename source
 	k <- genKey source backend
-	ms <- liftIO $ catchMaybeIO $ getFileStatus $ contentLocation source
-	mcache <- maybe (pure Nothing) (liftIO . toInodeCache delta) ms
+	let src = contentLocation source
+	ms <- liftIO $ catchMaybeIO $ getFileStatus src
+	mcache <- maybe (pure Nothing) (liftIO . toInodeCache delta src) ms
 	case (mcache, inodeCache source) of
 		(_, Nothing) -> go k mcache ms
 		(Just newc, Just c) | compareStrong c newc -> go k mcache ms

Command/Status.hs

@@ -70,7 +70,7 @@ statusDirect f = checkstatus =<< liftIO (catchMaybeIO $ getFileStatus f)
 		| not (isSymbolicLink s) = checkkey s =<< catKeyFile f
 		| otherwise = Just <$> checkNew f
 	
-	checkkey s (Just k) = ifM (sameFileStatus k s)
+	checkkey s (Just k) = ifM (sameFileStatus k f s)
 		( return Nothing
 		, return $ Just ModifiedFile
 		)

Utility/InodeCache.hs

@@ -40,15 +40,12 @@ module Utility.InodeCache (
 import Common
 import System.PosixCompat.Types
 import Utility.QuickCheck
--- While fileSize overflows and wraps at 2gb on Windows,
--- it's ok for purposes of comparison.
-import System.PosixCompat.Files (fileSize)
 
 #ifdef mingw32_HOST_OS
 import Data.Word (Word64)
 #endif
 
-data InodeCachePrim = InodeCachePrim FileID FileOffset EpochTime
+data InodeCachePrim = InodeCachePrim FileID Integer EpochTime
 	deriving (Show, Eq, Ord)
 
 newtype InodeCache = InodeCache InodeCachePrim
@@ -115,15 +112,16 @@ readInodeCache s = case words s of
 
 genInodeCache :: FilePath -> TSDelta -> IO (Maybe InodeCache)
 genInodeCache f delta = catchDefaultIO Nothing $
-	toInodeCache delta =<< getFileStatus f
+	toInodeCache delta f =<< getFileStatus f
 
-toInodeCache :: TSDelta -> FileStatus -> IO (Maybe InodeCache)
-toInodeCache (TSDelta getdelta) s
+toInodeCache :: TSDelta -> FilePath -> FileStatus -> IO (Maybe InodeCache)
+toInodeCache (TSDelta getdelta) f s
 	| isRegularFile s = do
 		delta <- getdelta
+		sz <- getFileSize' f s
 		return $ Just $ InodeCache $ InodeCachePrim
 			(fileID s)
-			(fileSize s)
+			sz
 			(modificationTime s + delta)
 	| otherwise = pure Nothing