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{- git-annex command-line JSON output and input
-
- Copyright 2011-2016 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Messages.JSON (
start,
end,
note,
add,
complete,
DualDisp(..),
) where
import Text.JSON
import qualified Utility.JSONStream as Stream
import Types.Key
import Data.Maybe
start :: String -> Maybe FilePath -> Maybe Key -> IO ()
start command file key = putStr $ Stream.start $ Stream.JSONObject $ catMaybes
[ part "command" (Just command)
, part "file" file
, part "key" (fmap key2file key)
]
where
part _ Nothing = Nothing
part l (Just v) = Just (l, v)
end :: Bool -> IO ()
end b = putStr $ Stream.add (Stream.JSONObject [("success", b)]) ++ Stream.end
note :: String -> IO ()
note s = add (Stream.JSONObject [("note", s)])
add :: Stream.JSONChunk a -> IO ()
add = putStr . Stream.add
complete :: Stream.JSONChunk a -> IO ()
complete v = putStr $ Stream.start v ++ Stream.end
-- A value that can be displayed either normally, or as JSON.
data DualDisp = DualDisp
{ dispNormal :: String
, dispJson :: String
}
instance JSON DualDisp where
showJSON = JSString . toJSString . dispJson
readJSON _ = Error "stub"
instance Show DualDisp where
show = dispNormal
|
