51 lines
1 KiB
Haskell
51 lines
1 KiB
Haskell
{- git-annex JSON output
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-
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- Copyright 2011 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 Messages.JSON (
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start,
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end,
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note,
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add,
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complete,
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DualDisp(..),
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) where
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import Text.JSON
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import qualified Utility.JSONStream as Stream
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start :: String -> Maybe String -> IO ()
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start command file =
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putStr $ Stream.start $ ("command", command) : filepart file
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where
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filepart Nothing = []
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filepart (Just f) = [("file", f)]
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end :: Bool -> IO ()
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end b = putStr $ Stream.add [("success", b)] ++ Stream.end
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note :: String -> IO ()
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note s = add [("note", s)]
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add :: JSON a => [(String, a)] -> IO ()
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add v = putStr $ Stream.add v
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complete :: JSON a => [(String, a)] -> IO ()
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complete v = putStr $ Stream.start v ++ Stream.end
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-- A value that can be displayed either normally, or as JSON.
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data DualDisp = DualDisp
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{ dispNormal :: String
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, dispJson :: String
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}
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instance JSON DualDisp where
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showJSON = JSString . toJSString . dispJson
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readJSON _ = Error "stub"
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instance Show DualDisp where
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show = dispNormal
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