50 lines
1.3 KiB
Haskell
50 lines
1.3 KiB
Haskell
{- git-annex uuids
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-
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- Each git repository used by git-annex has an annex.uuid setting that
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- uniquely identifies that repository.
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-
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- UUIDs of remotes are cached in git config, using keys named
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- remote.<name>.annex-uuid
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-
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- uuid.log stores a list of known uuids, and their descriptions.
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-
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- Copyright 2010-2011 Joey Hess <joey@kitenet.net>
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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 Logs.UUID (
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describeUUID,
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uuidMap
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) where
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import qualified Data.Map as M
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import Data.Time.Clock.POSIX
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import Common.Annex
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import qualified Annex.Branch
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import Logs.UUIDBased
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import qualified Annex.UUID
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{- Filename of uuid.log. -}
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logfile :: FilePath
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logfile = "uuid.log"
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{- Records a description for a uuid in the log. -}
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describeUUID :: UUID -> String -> Annex ()
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describeUUID uuid desc = do
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ts <- liftIO $ getPOSIXTime
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Annex.Branch.change logfile $
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showLog id . changeLog ts uuid desc . parseLog Just
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{- Read the uuidLog into a simple Map.
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-
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- The UUID of the current repository is included explicitly, since
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- it may not have been described and so otherwise would not appear. -}
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uuidMap :: Annex (M.Map UUID String)
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uuidMap = do
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m <- (simpleMap . parseLog Just) <$> Annex.Branch.get logfile
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u <- Annex.UUID.getUUID
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return $ M.insertWith' preferold u "" m
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where
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preferold = flip const
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