40ecf58d4b
This does not change the overall license of the git-annex program, which was already AGPL due to a number of sources files being AGPL already. Legally speaking, I'm adding a new license under which these files are now available; I already released their current contents under the GPL license. Now they're dual licensed GPL and AGPL. However, I intend for all my future changes to these files to only be released under the AGPL license, and I won't be tracking the dual licensing status, so I'm simply changing the license statement to say it's AGPL. (In some cases, others wrote parts of the code of a file and released it under the GPL; but in all cases I have contributed a significant portion of the code in each file and it's that code that is getting the AGPL license; the GPL license of other contributors allows combining with AGPL code.)
36 lines
1 KiB
Haskell
36 lines
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 AGPL version 3 or higher.
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-}
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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 used when possible. 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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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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maybe cannotFindProgram return =<< searchPath p
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