5be536e523
This was introduced by commit 450ee53ab6
However, the same problem could affect other calls to programPath,
specifically some on the assistant. So, I fixed it at a deeper level.
42 lines
1.1 KiB
Haskell
42 lines
1.1 KiB
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 Utility.Env
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import System.Environment (getExecutablePath)
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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. Fall back to reading the programFile,
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- or searching for the command name in PATH.
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-
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- The standalone build runs git-annex via ld.so, and defeats
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- getExecutablePath. It sets GIT_ANNEX_PROGRAMPATH to the correct path
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- to the wrapper script to use.
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-}
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programPath :: IO FilePath
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programPath = go =<< getEnv "GIT_ANNEX_PROGRAMPATH"
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where
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go (Just p) = return p
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go Nothing = 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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maybe cannotFindProgram return =<< searchPath p
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