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{- git-annex transfer types
-
- Copyright 2012 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
{-# LANGUAGE FlexibleInstances #-}
module Types.Transfer where
import Types
import Types.Remote (Verification(..))
import Utility.PID
import Utility.QuickCheck
import Utility.Url
import Data.Time.Clock.POSIX
import Control.Concurrent
import Control.Applicative
import Prelude
{- Enough information to uniquely identify a transfer. -}
data Transfer = Transfer
{ transferDirection :: Direction
, transferUUID :: UUID
, transferKey :: Key
}
deriving (Eq, Ord, Read, Show)
{- Information about a Transfer, stored in the transfer information file.
-
- Note that the associatedFile may not correspond to a file in the local
- git repository. It's some file, possibly relative to some directory,
- of some repository, that was acted on to initiate the transfer.
-}
data TransferInfo = TransferInfo
{ startedTime :: Maybe POSIXTime
, transferPid :: Maybe PID
, transferTid :: Maybe ThreadId
, transferRemote :: Maybe Remote
, bytesComplete :: Maybe Integer
, associatedFile :: AssociatedFile
, transferPaused :: Bool
}
deriving (Show, Eq, Ord)
stubTransferInfo :: TransferInfo
stubTransferInfo = TransferInfo Nothing Nothing Nothing Nothing Nothing (AssociatedFile Nothing) False
data Direction = Upload | Download
deriving (Eq, Ord, Show, Read)
formatDirection :: Direction -> String
formatDirection Upload = "upload"
formatDirection Download = "download"
parseDirection :: String -> Maybe Direction
parseDirection "upload" = Just Upload
parseDirection "download" = Just Download
parseDirection _ = Nothing
instance Arbitrary TransferInfo where
arbitrary = TransferInfo
<$> arbitrary
<*> arbitrary
<*> pure Nothing -- cannot generate a ThreadID
<*> pure Nothing -- remote not needed
<*> arbitrary
-- associated file cannot be empty (but can be Nothing)
<*> (AssociatedFile <$> arbitrary `suchThat` (/= Just ""))
<*> arbitrary
class Observable a where
observeBool :: a -> Bool
observeFailure :: a
instance Observable Bool where
observeBool = id
observeFailure = False
instance Observable (Bool, Verification) where
observeBool = fst
observeFailure = (False, UnVerified)
instance Observable (Either e Bool) where
observeBool (Left _) = False
observeBool (Right b) = b
observeFailure = Right False
instance Observable (Maybe a) where
observeBool (Just _) = True
observeBool Nothing = False
observeFailure = Nothing
class Transferrable t where
descTransfrerrable :: t -> Maybe String
instance Transferrable AssociatedFile where
descTransfrerrable (AssociatedFile af) = af
instance Transferrable URLString where
descTransfrerrable = Just
|
