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import System.Environment
import System.Directory
import Codec.Archive.Zip
import qualified Data.ByteString.Lazy as BS
import qualified Control.Exception as E
import System.IO.Error (isDoesNotExistError)
import System.FilePath
mkzip :: String -> IO ()
mkzip fmt = do
let dir = "data" </> fmt
output = "data" </> "reference" <.> fmt
cd <- getCurrentDirectory
setCurrentDirectory dir
archive <- addFilesToArchive [OptRecursive] emptyArchive ["."]
setCurrentDirectory cd
removeIfExists output
BS.writeFile output $ fromArchive archive
removeIfExists :: FilePath -> IO ()
removeIfExists fileName = removeFile fileName `E.catch` handleExists
where handleExists e
| isDoesNotExistError e = return ()
| otherwise = E.throwIO e
main :: IO ()
main = getArgs >>= mkzip . (!!0)
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