| Copyright | (c) The University of Glasgow 2002 |
|---|---|
| License | BSD-style (see the file libraries/base/LICENSE) |
| Maintainer | libraries@haskell.org |
| Stability | provisional |
| Portability | non-portable (requires POSIX) |
| Safe Haskell | Safe |
| Language | Haskell2010 |
System.Posix.Directory
Description
String-based POSIX directory support
Synopsis
- createDirectory :: FilePath -> FileMode -> IO ()
- removeDirectory :: FilePath -> IO ()
- data DirStream
- openDirStream :: FilePath -> IO DirStream
- readDirStream :: DirStream -> IO FilePath
- readDirStreamMaybe :: DirStream -> IO (Maybe FilePath)
- rewindDirStream :: DirStream -> IO ()
- closeDirStream :: DirStream -> IO ()
- data DirStreamOffset
- tellDirStream :: DirStream -> IO DirStreamOffset
- seekDirStream :: DirStream -> DirStreamOffset -> IO ()
- getWorkingDirectory :: IO FilePath
- changeWorkingDirectory :: FilePath -> IO ()
- changeWorkingDirectoryFd :: Fd -> IO ()
Creating and removing directories
createDirectory :: FilePath -> FileMode -> IO () Source #
createDirectory dir mode calls mkdir to
create a new directory, dir, with permissions based on
mode.
removeDirectory :: FilePath -> IO () Source #
Reading directories
openDirStream :: FilePath -> IO DirStream Source #
openDirStream dir calls opendir to obtain a
directory stream for dir.
readDirStream :: DirStream -> IO FilePath Source #
readDirStream dp calls readdir to obtain the
next directory entry (struct dirent) for the open directory
stream dp, and returns the d_name member of that
structure.
Note that this function returns an empty filepath if the end of the
directory stream is reached. For a safer alternative use
readDirStreamMaybe.
readDirStreamMaybe :: DirStream -> IO (Maybe FilePath) Source #
readDirStreamMaybe dp calls readdir to obtain the
next directory entry (struct dirent) for the open directory
stream dp. It returns the d_name member of that
structure wrapped in a Just d_name if an entry was read and Nothing if
the end of the directory stream was reached.
rewindDirStream :: DirStream -> IO () Source #
rewindDirStream dp calls rewinddir to reposition
the directory stream dp at the beginning of the directory.
closeDirStream :: DirStream -> IO () Source #
closeDirStream dp calls closedir to close
the directory stream dp.
data DirStreamOffset Source #
seekDirStream :: DirStream -> DirStreamOffset -> IO () Source #
The working dirctory
getWorkingDirectory :: IO FilePath Source #
getWorkingDirectory calls getcwd to obtain the name
of the current working directory.
changeWorkingDirectory :: FilePath -> IO () Source #
changeWorkingDirectory dir calls chdir to change
the current working directory to dir.
changeWorkingDirectoryFd :: Fd -> IO () Source #