System.IO.HVFS.InstanceHelpers

Utilities for creating instances of the items defined in System.IO.HVFS.

HVFSStat objects

data SimpleStat

A simple System.IO.HVFS.HVFSStat class that assumes that everything is either a file or a directory.

Constructors

SimpleStat

Fields

isFile :: Bool

True if file, False if directory

fileSize :: FileOffset

Set to 0 if unknown or a directory

Instances

Eq SimpleStat

Show SimpleStat

HVFSStat SimpleStat

HVFS objects & types

MemoryVFS

data MemoryVFS

An in-memory read/write filesystem. Think of it as a dynamically resizable ramdisk written in Haskell.

Instances

Show MemoryVFS

HVFSOpenable MemoryVFS

HVFS MemoryVFS

newMemoryVFS :: [MemoryNode] -> IO MemoryVFS

Create a new MemoryVFS object from an existing tree. An empty filesystem may be created by using [] for the parameter.

newMemoryVFSRef :: IORef [MemoryNode] -> IO MemoryVFS

Create a new MemoryVFS object using an IORef to an existing tree.

type MemoryNode = (String, MemoryEntry)

The basic node of a MemoryVFS. The String corresponds to the filename, and the entry to the contents.

data MemoryEntry

The content of a file or directory in a MemoryVFS.

Constructors

MemoryDirectory [MemoryNode]

MemoryFile String

Instances

Eq MemoryEntry

Show MemoryEntry

Utilities

nice_slice :: String -> [String]

Similar to NameManip but the first element won't be /.

nice_slice "/" -> []
nice_slice "/foo/bar" -> ["foo", "bar"]

getFullPath :: HVFS a => a -> String -> IO String

Gets a full path, after investigating the cwd.

getFullSlice :: HVFS a => a -> String -> IO [String]

Gets the full path via getFullPath, then splits it via nice_slice.