git-annex/Git/Version.hs
Joey Hess 40ecf58d4b
update licenses from GPL to AGPL
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.)
2019-03-13 15:48:14 -04:00

32 lines
582 B
Haskell

{- git versions
-
- Copyright 2011, 2013 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
{-# OPTIONS_GHC -fno-warn-tabs #-}
module Git.Version (
installed,
older,
normalize,
GitVersion,
) where
import Common
import Utility.DottedVersion
type GitVersion = DottedVersion
installed :: IO GitVersion
installed = normalize . extract <$> readProcess "git" ["--version"]
where
extract s = case lines s of
[] -> ""
(l:_) -> unwords $ drop 2 $ words l
older :: String -> IO Bool
older n = do
v <- installed
return $ v < normalize n