78 lines
2.2 KiB
Haskell
78 lines
2.2 KiB
Haskell
{- Data type for a distribution of git-annex
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-
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- Copyright 2013, 2017 Joey Hess <id@joeyh.name>
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-
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- Licensed under the GNU GPL version 3 or higher.
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-}
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module Types.Distribution where
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import Utility.PartialPrelude
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import Types.Key
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import Key
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import Data.Time.Clock
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import Git.Config (isTrue, boolConfig)
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import Data.String.Utils
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import Control.Applicative
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import Prelude
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type GitAnnexVersion = String
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data GitAnnexDistribution = GitAnnexDistribution
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{ distributionUrl :: String
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, distributionKey :: Key
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, distributionVersion :: GitAnnexVersion
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, distributionReleasedate :: UTCTime
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, distributionUrgentUpgrade :: Maybe GitAnnexVersion
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}
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deriving (Read, Show, Eq)
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{- The first line of the info file is in the format old versions of
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- git-annex expect to read a GitAnnexDistribution.
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- The remainder of the file is in the new format.
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- This works because old versions of git-annex used readish to parse
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- the file, and that ignores the second line.
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-}
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formatInfoFile :: GitAnnexDistribution -> String
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formatInfoFile d = replace "keyVariant = " "keyBackendName = " (show d) ++
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"\n" ++ formatGitAnnexDistribution d
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parseInfoFile :: String -> Maybe GitAnnexDistribution
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parseInfoFile s = case lines s of
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(_oldformat:rest) -> parseGitAnnexDistribution (unlines rest)
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_ -> Nothing
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formatGitAnnexDistribution :: GitAnnexDistribution -> String
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formatGitAnnexDistribution d = unlines
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[ distributionUrl d
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, key2file (distributionKey d)
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, distributionVersion d
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, show (distributionReleasedate d)
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, maybe "" show (distributionUrgentUpgrade d)
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]
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parseGitAnnexDistribution :: String -> Maybe GitAnnexDistribution
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parseGitAnnexDistribution s = case lines s of
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(u:k:v:d:uu:_) -> GitAnnexDistribution
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<$> pure u
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<*> file2key k
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<*> pure v
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<*> readish d
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<*> pure (readish uu)
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_ -> Nothing
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data AutoUpgrade = AskUpgrade | AutoUpgrade | NoAutoUpgrade
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deriving (Eq)
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toAutoUpgrade :: Maybe String -> AutoUpgrade
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toAutoUpgrade Nothing = AskUpgrade
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toAutoUpgrade (Just s)
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| s == "ask" = AskUpgrade
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| isTrue s == Just True = AutoUpgrade
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| otherwise = NoAutoUpgrade
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fromAutoUpgrade :: AutoUpgrade -> String
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fromAutoUpgrade AskUpgrade = "ask"
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fromAutoUpgrade AutoUpgrade = boolConfig True
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fromAutoUpgrade NoAutoUpgrade = boolConfig False
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