Safe Haskell	None
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 XP / x86 only)
Mac OS X (tested on Leopard / x86 only)
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

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

Show ScriptPath

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.