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.)
32 lines
582 B
Haskell
32 lines
582 B
Haskell
{- git versions
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-
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- Copyright 2011, 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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{-# OPTIONS_GHC -fno-warn-tabs #-}
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module Git.Version (
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installed,
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older,
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normalize,
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GitVersion,
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) where
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import Common
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import Utility.DottedVersion
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type GitVersion = DottedVersion
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installed :: IO GitVersion
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installed = normalize . extract <$> readProcess "git" ["--version"]
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where
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extract s = case lines s of
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[] -> ""
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(l:_) -> unwords $ drop 2 $ words l
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older :: String -> IO Bool
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older n = do
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v <- installed
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return $ v < normalize n
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