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{- Allows linking haskell programs too big for all the files to fit in a
- command line.
-
-
- Copyright 2013 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Main where
import Data.Maybe
import Data.Either
import Data.List
import Text.Parsec
import Text.Parsec.String
import Control.Applicative ((<$>))
import Control.Monad
import Utility.Monad
import Utility.Process
data CmdParams = CmdParams String String
deriving (Show)
parseGhcLink :: Parser CmdParams
parseGhcLink = do
many prelinklines
linkheaderline
char '"'
gcccmd <- many1 (noneOf "\"")
string "\" "
gccparams <- restOfLine
return $ CmdParams gcccmd gccparams
where
linkheaderline = do
string "*** Linker"
restOfLine
prelinklines = do
notFollowedBy linkheaderline
restOfLine
restOfLine :: Parser String
restOfLine = newline `after` many (noneOf "\n")
getOutput :: String -> [String] -> IO String
getOutput cmd params = do
putStrLn $ unwords [cmd, show params]
(log, ok) <- processTranscript cmd params Nothing
unless ok $
error $ cmd ++ " failed:\n\n" ++ log
return log
runParser' :: Parser a -> String -> a
runParser' p s = either (error . show) id (parse p "" s)
main = do
ghcout <- getOutput "cabal"
["build", "--ghc-options=-v -keep-tmp-files"]
print $ runParser' parseGhcLink ghcout
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