netserver/Opts.hs
author unc0rr
Wed, 22 Oct 2008 15:45:16 +0000
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child 1473 60e1fad78d58
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module Opts where
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import System
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import System.Console.GetOpt
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import Network
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import Data.Maybe ( fromMaybe )
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import Miscutils
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import System.IO.Unsafe
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data GlobalOptions =
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	GlobalOptions
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	{
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		isDedicated :: Bool,
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		serverMessage :: String,
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		listenPort :: PortNumber
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	}
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defaultMessage = "<h2><p align=center><a href=\"http://www.hedgewars.org/\">http://www.hedgewars.org/</a></p></h2>"
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defaultOptions = (GlobalOptions True defaultMessage 46631)
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options :: [OptDescr (GlobalOptions -> GlobalOptions)]
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options = [
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	Option ['p'] ["port"] (ReqArg readListenPort "PORT") "listen on PORT",
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	Option ['d'] ["dedicated"] (ReqArg readDedicated "BOOL") "start as dedicated (True or False)"
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	]
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readListenPort, readDedicated :: String -> GlobalOptions -> GlobalOptions
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readListenPort str opts = opts{listenPort = readPort}
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	where
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		readPort = fromInteger $ fromMaybe 46631 (maybeRead str :: Maybe Integer)
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readDedicated str opts = opts{isDedicated = readDedicated}
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	where
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		readDedicated = fromMaybe True (maybeRead str :: Maybe Bool)
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opts :: IO GlobalOptions
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opts = do
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	args <- getArgs
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	case getOpt Permute options args of
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		(o, [], []) -> return $ foldr ($) defaultOptions o
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		(_,_,errs) -> ioError (userError (concat errs ++ usageInfo header options))
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	where header = "Usage: newhwserv [OPTION...]"
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{-# NOINLINE globalOptions #-}
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globalOptions = unsafePerformIO opts