git-annex/Annex/Version.hs

59 lines
1.2 KiB
Haskell

{- git-annex repository versioning
-
- Copyright 2010,2013 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
{-# LANGUAGE CPP #-}
module Annex.Version where
import Annex.Common
import Config
import qualified Annex
type Version = String
defaultVersion :: Version
defaultVersion = "5"
latestVersion :: Version
latestVersion = "6"
supportedVersions :: [Version]
supportedVersions = ["5", "6"]
upgradableVersions :: [Version]
#ifndef mingw32_HOST_OS
upgradableVersions = ["0", "1", "2", "4", "5"]
#else
upgradableVersions = ["2", "3", "4", "5"]
#endif
autoUpgradeableVersions :: [Version]
autoUpgradeableVersions = ["3", "4"]
versionField :: ConfigKey
versionField = annexConfig "version"
getVersion :: Annex (Maybe Version)
getVersion = annexVersion <$> Annex.getGitConfig
versionSupportsDirectMode :: Annex Bool
versionSupportsDirectMode = go <$> getVersion
where
go (Just "6") = False
go _ = True
versionSupportsUnlockedPointers :: Annex Bool
versionSupportsUnlockedPointers = go <$> getVersion
where
go (Just "6") = True
go _ = False
setVersion :: Version -> Annex ()
setVersion = setConfig versionField
removeVersion :: Annex ()
removeVersion = unsetConfig versionField