mirrors/git-annex
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
git-annex/Utility/FileSize.hs

46 lines
1.1 KiB
Haskell
Raw Normal View History

add getFileSize, which can get the real size of a large file on Windows Avoid using fileSize which maxes out at just 2 gb on Windows. Instead, use hFileSize, which doesn't have a bounded size. Fixes support for files > 2 gb on Windows. Note that the InodeCache code only needs to compare a file size, so it doesn't matter it the file size wraps. So it has been left as-is. This was necessary both to avoid invalidating existing inode caches, and because the code passed FileStatus around and would have become more expensive if it called getFileSize. This commit was sponsored by Christian Dietrich.
2015-01-20 20:58:48 +00:00
{- File size.
-
- License: BSD-2-clause
-}
{-# LANGUAGE CPP #-}
squelch tab warnings
2019-11-22 16:49:41 +00:00
{-# OPTIONS_GHC -fno-warn-tabs #-}
add getFileSize, which can get the real size of a large file on Windows Avoid using fileSize which maxes out at just 2 gb on Windows. Instead, use hFileSize, which doesn't have a bounded size. Fixes support for files > 2 gb on Windows. Note that the InodeCache code only needs to compare a file size, so it doesn't matter it the file size wraps. So it has been left as-is. This was necessary both to avoid invalidating existing inode caches, and because the code passed FileStatus around and would have become more expensive if it called getFileSize. This commit was sponsored by Christian Dietrich.
2015-01-20 20:58:48 +00:00
explict export lists Eliminated some dead code. In other cases, exported a currently unused function, since it was a logical part of the API. Of course this improves the API documentation. It may also sometimes let ghc optimize code better, since it can know a function is internal to a module. 364 modules still to go, according to git grep -E 'module [A-Za-z.]+ where'
2019-11-21 19:38:06 +00:00
module Utility.FileSize (
FileSize,
getFileSize,
getFileSize',
) where
add getFileSize, which can get the real size of a large file on Windows Avoid using fileSize which maxes out at just 2 gb on Windows. Instead, use hFileSize, which doesn't have a bounded size. Fixes support for files > 2 gb on Windows. Note that the InodeCache code only needs to compare a file size, so it doesn't matter it the file size wraps. So it has been left as-is. This was necessary both to avoid invalidating existing inode caches, and because the code passed FileStatus around and would have become more expensive if it called getFileSize. This commit was sponsored by Christian Dietrich.
2015-01-20 20:58:48 +00:00
import System.PosixCompat.Files
build fix
2015-01-20 21:27:42 +00:00
#ifdef mingw32_HOST_OS
add getFileSize, which can get the real size of a large file on Windows Avoid using fileSize which maxes out at just 2 gb on Windows. Instead, use hFileSize, which doesn't have a bounded size. Fixes support for files > 2 gb on Windows. Note that the InodeCache code only needs to compare a file size, so it doesn't matter it the file size wraps. So it has been left as-is. This was necessary both to avoid invalidating existing inode caches, and because the code passed FileStatus around and would have become more expensive if it called getFileSize. This commit was sponsored by Christian Dietrich.
2015-01-20 20:58:48 +00:00
import Control.Exception (bracket)
import System.IO
build fix
2015-01-20 21:27:42 +00:00
#endif
add getFileSize, which can get the real size of a large file on Windows Avoid using fileSize which maxes out at just 2 gb on Windows. Instead, use hFileSize, which doesn't have a bounded size. Fixes support for files > 2 gb on Windows. Note that the InodeCache code only needs to compare a file size, so it doesn't matter it the file size wraps. So it has been left as-is. This was necessary both to avoid invalidating existing inode caches, and because the code passed FileStatus around and would have become more expensive if it called getFileSize. This commit was sponsored by Christian Dietrich.
2015-01-20 20:58:48 +00:00
matchexpression: New plumbing command to check if a preferred content expression matches some data.
2016-01-25 20:16:18 +00:00
type FileSize = Integer
add getFileSize, which can get the real size of a large file on Windows Avoid using fileSize which maxes out at just 2 gb on Windows. Instead, use hFileSize, which doesn't have a bounded size. Fixes support for files > 2 gb on Windows. Note that the InodeCache code only needs to compare a file size, so it doesn't matter it the file size wraps. So it has been left as-is. This was necessary both to avoid invalidating existing inode caches, and because the code passed FileStatus around and would have become more expensive if it called getFileSize. This commit was sponsored by Christian Dietrich.
2015-01-20 20:58:48 +00:00
{- 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
-}
matchexpression: New plumbing command to check if a preferred content expression matches some data.
2016-01-25 20:16:18 +00:00
getFileSize :: FilePath -> IO FileSize
add getFileSize, which can get the real size of a large file on Windows Avoid using fileSize which maxes out at just 2 gb on Windows. Instead, use hFileSize, which doesn't have a bounded size. Fixes support for files > 2 gb on Windows. Note that the InodeCache code only needs to compare a file size, so it doesn't matter it the file size wraps. So it has been left as-is. This was necessary both to avoid invalidating existing inode caches, and because the code passed FileStatus around and would have become more expensive if it called getFileSize. This commit was sponsored by Christian Dietrich.
2015-01-20 20:58:48 +00:00
#ifndef mingw32_HOST_OS
build fix
2015-01-20 21:27:42 +00:00
getFileSize f = fmap (fromIntegral . fileSize) (getFileStatus f)
add getFileSize, which can get the real size of a large file on Windows Avoid using fileSize which maxes out at just 2 gb on Windows. Instead, use hFileSize, which doesn't have a bounded size. Fixes support for files > 2 gb on Windows. Note that the InodeCache code only needs to compare a file size, so it doesn't matter it the file size wraps. So it has been left as-is. This was necessary both to avoid invalidating existing inode caches, and because the code passed FileStatus around and would have become more expensive if it called getFileSize. This commit was sponsored by Christian Dietrich.
2015-01-20 20:58:48 +00:00
#else
getFileSize f = bracket (openFile f ReadMode) hClose hFileSize
#endif
use RawFilePath getFileStatus for speed Only done on those calls to getFileStatus that had a RawFilePath, not a FilePath. The others would probably be just as fast if converted to use it with toRawFilePath, but I'm not 100% sure. Note that genInodeCache' uses fromRawFilePath, but that value only gets used on Windows, so on unix the thunk will never be evaluated.
2019-12-06 18:44:42 +00:00
{- 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. -}
matchexpression: New plumbing command to check if a preferred content expression matches some data.
2016-01-25 20:16:18 +00:00
getFileSize' :: FilePath -> FileStatus -> IO FileSize
add getFileSize, which can get the real size of a large file on Windows Avoid using fileSize which maxes out at just 2 gb on Windows. Instead, use hFileSize, which doesn't have a bounded size. Fixes support for files > 2 gb on Windows. Note that the InodeCache code only needs to compare a file size, so it doesn't matter it the file size wraps. So it has been left as-is. This was necessary both to avoid invalidating existing inode caches, and because the code passed FileStatus around and would have become more expensive if it called getFileSize. This commit was sponsored by Christian Dietrich.
2015-01-20 20:58:48 +00:00
#ifndef mingw32_HOST_OS
getFileSize' _ s = return $ fromIntegral $ fileSize s
#else
getFileSize' f _ = getFileSize f
#endif
Reference in a new issue Copy permalink