34 lines
816 B
Haskell
34 lines
816 B
Haskell
{- git-annex program path
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-
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- Copyright 2013 Joey Hess <id@joeyh.name>
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-
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- Licensed under the GNU GPL version 3 or higher.
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-}
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{-# LANGUAGE CPP #-}
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module Annex.Path where
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import Common
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import Config.Files
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import System.Environment
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{- A fully qualified path to the currently running git-annex program.
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-
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- getExecutablePath is available since ghc 7.4.2. On OSs it supports
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- well, it returns the complete path to the program. But, on other OSs,
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- it might return just the basename.
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-}
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programPath :: IO (Maybe FilePath)
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programPath = do
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#if MIN_VERSION_base(4,6,0)
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exe <- getExecutablePath
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p <- if isAbsolute exe
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then return exe
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else readProgramFile
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#else
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p <- readProgramFile
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#endif
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-- In case readProgramFile returned just the command name,
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-- fall back to finding it in PATH.
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searchPath p
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