git-annex/Types/Group.hs
Joey Hess 52891711d2
git-annex sim command is working
Had to add Read instances to Key and NumCopies and some other similar
types. I only expect to use those in serializing a sim. Of course, this
risks that implementation changes break reading old data. For a sim,
that would not be a big problem.
2024-09-12 16:10:52 -04:00

40 lines
840 B
Haskell

{- git-annex repo groups
-
- Copyright 2012-2024 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
module Types.Group (
Group(..),
fromGroup,
toGroup,
GroupMap(..),
emptyGroupMap
) where
import Types.UUID
import Utility.FileSystemEncoding
import Annex.Balanced
import qualified Data.Map as M
import qualified Data.Set as S
import qualified Data.ByteString as S
newtype Group = Group S.ByteString
deriving (Eq, Ord, Show, Read)
fromGroup :: Group -> String
fromGroup (Group g) = decodeBS g
toGroup :: String -> Group
toGroup = Group . encodeBS
data GroupMap = GroupMap
{ groupsByUUID :: M.Map UUID (S.Set Group)
, uuidsByGroup :: M.Map Group (S.Set UUID)
, balancedPickerByGroup :: M.Map Group BalancedPicker
}
emptyGroupMap :: GroupMap
emptyGroupMap = GroupMap M.empty M.empty M.empty