Development.Shake.FilePath

A module for FilePath operations exposing System.FilePath plus some additional operations.

Windows note: The extension methods (<.>, takeExtension etc) use the Posix variants since on Windows "//*" <.> "txt" produces "//*\\.txt" (which is bad for FilePattern values).

Documentation

module System.FilePath

module System.FilePath.Posix

dropDirectory1 :: FilePath -> FilePath

Drop the first directory from a FilePath. Should only be used on relative paths.

dropDirectory1 "aaa/bbb" == "bbb"
dropDirectory1 "aaa/" == ""
dropDirectory1 "aaa" == ""
dropDirectory1 "" == ""

takeDirectory1 :: FilePath -> FilePath

Take the first component of a FilePath. Should only be used on relative paths.

takeDirectory1 "aaa/bbb" == "aaa"
takeDirectory1 "aaa/" == "aaa"
takeDirectory1 "aaa" == "aaa"

normaliseEx :: FilePath -> FilePath

Normalise a FilePath, applying the rules:

• All pathSeparators become pathSeparator (/ on Linux, \ on Windows)
• foo/bar/../baz becomes foo/baz (not universally true in the presence of symlinks)
• foo/./bar becomes foo/bar
• foo//bar becomes foo/bar

This function is not based on the normalise function from the filepath library, as that function is quite broken.

toNative :: FilePath -> FilePath

Convert to native path separators, namely \ on Windows.

toStandard :: FilePath -> FilePath

Convert all path separators to /, even on Windows.

exe :: String

The extension of executables, "exe" on Windows and "" otherwise.