48 lines
1.1 KiB
Haskell
48 lines
1.1 KiB
Haskell
{- git-annex repository versioning
|
|
-
|
|
- Copyright 2010 Joey Hess <joey@kitenet.net>
|
|
-
|
|
- Licensed under the GNU GPL version 3 or higher.
|
|
-}
|
|
|
|
module Version where
|
|
|
|
import Control.Monad.State (liftIO)
|
|
import System.Directory
|
|
|
|
import Types
|
|
import qualified Annex
|
|
import qualified GitRepo as Git
|
|
import Locations
|
|
|
|
currentVersion :: String
|
|
currentVersion = "2"
|
|
|
|
versionField :: String
|
|
versionField = "annex.version"
|
|
|
|
getVersion :: Annex String
|
|
getVersion = do
|
|
g <- Annex.gitRepo
|
|
let v = Git.configGet g versionField ""
|
|
if not $ null v
|
|
then return v
|
|
else do
|
|
-- version 0 was not recorded in .git/config;
|
|
-- such a repo should have an gitAnnexDir but no
|
|
-- gitAnnexObjectDir.
|
|
--
|
|
-- version 1 may not be recorded if the user
|
|
-- forgot to init. Such a repo should have a
|
|
-- gitAnnexObjectDir already.
|
|
d <- liftIO $ doesDirectoryExist $ gitAnnexDir g
|
|
o <- liftIO $ doesDirectoryExist $ gitAnnexObjectDir g
|
|
case (d, o) of
|
|
(True, False) -> return "0"
|
|
(True, True) -> return "1"
|
|
_ -> do
|
|
setVersion
|
|
return currentVersion
|
|
|
|
setVersion :: Annex ()
|
|
setVersion = Annex.setConfig versionField currentVersion
|