git-annex/Messages/JSON.hs
2011-12-23 01:08:19 -04:00

40 lines
773 B
Haskell

{- git-annex JSON output
-
- Copyright 2011 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Messages.JSON (
start,
end,
note,
add,
complete
) where
import Text.JSON
import qualified Utility.JSONStream as Stream
start :: String -> Maybe String -> IO ()
start command file =
putStr $ Stream.start $ ("command", command) : filepart file
where
filepart Nothing = []
filepart (Just f) = [("file", f)]
end :: Bool -> IO ()
end b = putStr $ Stream.add [("success", b)] ++ Stream.end
note :: String -> IO ()
note s = add [("note", s)]
add :: JSON a => [(String, a)] -> IO ()
add v = putStr $ Stream.add v
complete :: JSON a => [(String, a)] -> IO ()
complete v = putStr $ concat
[ Stream.start v
, Stream.end
]