gameServer/Opts.hs
author nemo
Thu, 02 Jun 2011 18:39:35 -0400
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permissions -rw-r--r--
oops.
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{-# LANGUAGE CPP #-}
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module Opts
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(
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    getOpts,
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) where
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import System.Environment
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import System.Console.GetOpt
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import Data.Maybe ( fromMaybe )
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-------------------
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import CoreTypes
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import Utils
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options :: [OptDescr (ServerInfo -> ServerInfo)]
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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
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    , readDedicated
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    :: String -> ServerInfo -> ServerInfo
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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 = readDed}
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    where
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        readDed = fromMaybe True (maybeRead str :: Maybe Bool)
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getOpts :: ServerInfo -> IO ServerInfo
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getOpts 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 ($) opts{runArgs = args} o
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        (_,_,errs) -> ioError (userError (concat errs ++ usageInfo header options))
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    where header = "Usage: hedgewars-server [OPTION...]"