diff options
Diffstat (limited to 'Utility/FileSize.hs')
| -rw-r--r-- | Utility/FileSize.hs | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/Utility/FileSize.hs b/Utility/FileSize.hs index 1055754..8544ad4 100644 --- a/Utility/FileSize.hs +++ b/Utility/FileSize.hs @@ -4,8 +4,13 @@ -} {-# LANGUAGE CPP #-} +{-# OPTIONS_GHC -fno-warn-tabs #-} -module Utility.FileSize where +module Utility.FileSize ( + FileSize, + getFileSize, + getFileSize', +) where import System.PosixCompat.Files #ifdef mingw32_HOST_OS @@ -13,21 +18,26 @@ import Control.Exception (bracket) import System.IO #endif +type FileSize = Integer + {- Gets the size of a file. - - This is better than using fileSize, because on Windows that returns a - FileOffset which maxes out at 2 gb. - See https://github.com/jystic/unix-compat/issues/16 -} -getFileSize :: FilePath -> IO Integer +getFileSize :: FilePath -> IO FileSize #ifndef mingw32_HOST_OS getFileSize f = fmap (fromIntegral . fileSize) (getFileStatus f) #else getFileSize f = bracket (openFile f ReadMode) hClose hFileSize #endif -{- Gets the size of the file, when its FileStatus is already known. -} -getFileSize' :: FilePath -> FileStatus -> IO Integer +{- Gets the size of the file, when its FileStatus is already known. + - + - On windows, uses getFileSize. Otherwise, the FileStatus contains the + - size, so this does not do any work. -} +getFileSize' :: FilePath -> FileStatus -> IO FileSize #ifndef mingw32_HOST_OS getFileSize' _ s = return $ fromIntegral $ fileSize s #else |