gameServer/Opts.hs
author unc0rr
Mon, 14 Mar 2011 20:04:51 +0300
changeset 5011 73c5839d4447
parent 4989 4771fed9272e
child 5210 a5329e52a71b
permissions -rw-r--r--
I must have been on drugs when wrote it

{-# LANGUAGE CPP #-}
module Opts
(
    getOpts,
) where

import System.Environment
import System.Console.GetOpt
import Data.Maybe ( fromMaybe )
-------------------
import CoreTypes
import Utils

options :: [OptDescr (ServerInfo -> ServerInfo)]
options = [
    Option "p" ["port"] (ReqArg readListenPort "PORT") "listen on PORT",
    Option "d" ["dedicated"] (ReqArg readDedicated "BOOL") "start as dedicated (True or False)"
    ]

readListenPort
    , readDedicated
    :: String -> ServerInfo -> ServerInfo


readListenPort str opts = opts{listenPort = readPort}
    where
        readPort = fromInteger $ fromMaybe 46631 (maybeRead str :: Maybe Integer)

readDedicated str opts = opts{isDedicated = readDed}
    where
        readDed = fromMaybe True (maybeRead str :: Maybe Bool)

getOpts :: ServerInfo -> IO ServerInfo
getOpts opts = do
    args <- getArgs
    case getOpt Permute options args of
        (o, [], []) -> return $ foldr ($) opts o
        (_,_,errs) -> ioError (userError (concat errs ++ usageInfo header options))
    where header = "Usage: hedgewars-server [OPTION...]"