84 lines
2.2 KiB
Haskell
84 lines
2.2 KiB
Haskell
{- git-annex Messages data types
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-
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- Copyright 2012-2020 Joey Hess <id@joeyh.name>
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-
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- Licensed under the GNU AGPL version 3 or higher.
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-}
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module Types.Messages where
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import qualified Utility.Aeson as Aeson
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import Utility.Metered
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import Control.Concurrent
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import System.Console.Regions (ConsoleRegion)
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import qualified Data.ByteString as S
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import qualified Data.ByteString.Lazy as L
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data OutputType
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= NormalOutput
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| QuietOutput
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| JSONOutput JSONOptions
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| SerializedOutput
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(SerializedOutput -> IO ())
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(IO (Maybe SerializedOutputResponse))
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data JSONOptions = JSONOptions
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{ jsonProgress :: Bool
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, jsonErrorMessages :: Bool
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}
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deriving (Show)
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adjustOutputType :: OutputType -> OutputType -> OutputType
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adjustOutputType (JSONOutput old) (JSONOutput new) = JSONOutput $ JSONOptions
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{ jsonProgress = jsonProgress old || jsonProgress new
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, jsonErrorMessages = jsonErrorMessages old || jsonErrorMessages new
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}
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adjustOutputType _old new = new
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data SideActionBlock = NoBlock | StartBlock | InBlock
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deriving (Eq)
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data MessageState = MessageState
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{ outputType :: OutputType
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, concurrentOutputEnabled :: Bool
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, sideActionBlock :: SideActionBlock
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, consoleRegion :: Maybe ConsoleRegion
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, consoleRegionErrFlag :: Bool
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, jsonBuffer :: Maybe Aeson.Object
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, promptLock :: MVar () -- left full when not prompting
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}
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newMessageState :: IO MessageState
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newMessageState = do
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promptlock <- newMVar ()
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return $ MessageState
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{ outputType = NormalOutput
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, concurrentOutputEnabled = False
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, sideActionBlock = NoBlock
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, consoleRegion = Nothing
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, consoleRegionErrFlag = False
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, jsonBuffer = Nothing
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, promptLock = promptlock
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}
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-- | When communicating with a child process over a pipe while it is
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-- performing some action, this is used to pass back output that the child
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-- would normally display to the console.
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data SerializedOutput
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= OutputMessage S.ByteString
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| OutputError String
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| BeginProgressMeter
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| UpdateProgressMeterTotalSize TotalSize
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| UpdateProgressMeter BytesProcessed
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| EndProgressMeter
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| BeginPrompt
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| EndPrompt
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| JSONObject L.ByteString
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-- ^ This is always sent, it's up to the consumer to decide if it
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-- wants to display JSON, or human-readable messages.
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deriving (Show)
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data SerializedOutputResponse
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= ReadyPrompt
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deriving (Eq, Show)
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