Safe Haskell	Safe-Inferred
Language	Haskell98

System.Environment.Executable

Description

The documentation of "System.Environment.getProgName" says that

"However, this is hard-to-impossible to implement on some non-Unix OSes, so instead, for maximum portability, we just return the leafname of the program as invoked. Even then there are some differences between platforms: on Windows, for example, a program invoked as foo is probably really FOO.EXE, and that is what "getProgName" will return."

This library tries to fix this issue. It also provides some platform-specific functions (most notably getting the path of the application bundle on OSX). Supported operating systems:

Win32 (tested on Windows 7)
Mac OS X
Linux
FreeBSD (tested on FreeBSD 6.4)
*BSD (with procfs mounted, plus fallback for certain shells; untested)
Solaris (untested, and probably works on Solaris 10 only)

Synopsis

getExecutablePath :: IO FilePath
splitExecutablePath :: IO (FilePath, FilePath)
data ScriptPath
- = Executable FilePath
- | RunGHC FilePath
- | Interactive
getScriptPath :: IO ScriptPath

Documentation

getExecutablePath :: IO FilePath Source #

splitExecutablePath :: IO (FilePath, FilePath) Source #

data ScriptPath Source #

Constructors

Executable FilePath	it was (probably) a proper compiled executable
RunGHC FilePath	it was a script run by runghc/runhaskell
Interactive	we are in GHCi

Instances

Instances details

Show ScriptPath Source #
Instance details Defined in System.Environment.Executable Methods showsPrec :: Int -> ScriptPath -> ShowS Source # show :: ScriptPath -> String Source # showList :: [ScriptPath] -> ShowS Source #

getScriptPath :: IO ScriptPath Source #

An experimental hack which tries to figure out if the program was run with runghc or runhaskell or ghci, and then tries to find out the directory of the source (or object file).

GHC only.