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|
{- Data type for a distribution of git-annex
-
- Copyright 2013, 2017 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
module Types.Distribution where
import Utility.PartialPrelude
import Utility.Split
import Types.Key
import Key
import Data.Time.Clock
import Git.Config (isTrueFalse, boolConfig)
type GitAnnexVersion = String
data GitAnnexDistribution = GitAnnexDistribution
{ distributionUrl :: String
, distributionKey :: KeyData
-- ^ This used to be a Key, but now KeyData serializes
-- to Key { ... }, so back-compat for Read and Show is preserved.
, distributionVersion :: GitAnnexVersion
, distributionReleasedate :: UTCTime
, distributionUrgentUpgrade :: Maybe GitAnnexVersion
}
deriving (Read, Show, Eq)
{- The first line of the info file is in the format old versions of
- git-annex expect to read a GitAnnexDistribution.
- The remainder of the file is in the new format.
- This works because old versions of git-annex used readish to parse
- the file, and that ignores the second line.
-}
formatInfoFile :: GitAnnexDistribution -> String
formatInfoFile d = replace "keyVariant = " "keyBackendName = " (show d) ++
"\n" ++ formatGitAnnexDistribution d
parseInfoFile :: [String] -> Maybe GitAnnexDistribution
parseInfoFile (_oldformat:rest) = parseGitAnnexDistribution (unlines rest)
parseInfoFile _ = Nothing
formatGitAnnexDistribution :: GitAnnexDistribution -> String
formatGitAnnexDistribution d = unlines
[ distributionUrl d
, serializeKey $ mkKey $ const $ distributionKey d
, distributionVersion d
, show (distributionReleasedate d)
, maybe "" show (distributionUrgentUpgrade d)
]
parseGitAnnexDistribution :: String -> Maybe GitAnnexDistribution
parseGitAnnexDistribution s = case lines s of
(u:k:v:d:uu:_) -> GitAnnexDistribution
<$> pure u
<*> fmap (fromKey id) (deserializeKey k)
<*> pure v
<*> readish d
<*> pure (readish uu)
_ -> Nothing
data AutoUpgrade = AskUpgrade | AutoUpgrade | NoAutoUpgrade
deriving (Eq)
toAutoUpgrade :: Maybe String -> AutoUpgrade
toAutoUpgrade Nothing = AskUpgrade
toAutoUpgrade (Just s)
| s == "ask" = AskUpgrade
| isTrueFalse s == Just True = AutoUpgrade
| otherwise = NoAutoUpgrade
fromAutoUpgrade :: AutoUpgrade -> String
fromAutoUpgrade AskUpgrade = "ask"
fromAutoUpgrade AutoUpgrade = boolConfig True
fromAutoUpgrade NoAutoUpgrade = boolConfig False
|
