79 lines
2.3 KiB
Haskell
79 lines
2.3 KiB
Haskell
{- git-annex command-line options
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-
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- Copyright 2010-2011 Joey Hess <joey@kitenet.net>
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-
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- Licensed under the GNU GPL version 3 or higher.
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-}
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module Option (
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common,
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matcher,
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flag,
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field,
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name,
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ArgDescr(..),
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OptDescr(..),
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) where
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import System.Console.GetOpt
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import System.Log.Logger
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import Common.Annex
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import qualified Annex
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import Limit
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import Usage
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common :: [Option]
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common =
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[ Option [] ["force"] (NoArg (setforce True))
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"allow actions that may lose annexed data"
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, Option ['F'] ["fast"] (NoArg (setfast True))
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"avoid slow operations"
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, Option ['a'] ["auto"] (NoArg (setauto True))
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"automatic mode"
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, Option ['q'] ["quiet"] (NoArg (setoutput Annex.QuietOutput))
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"avoid verbose output"
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, Option ['v'] ["verbose"] (NoArg (setoutput Annex.NormalOutput))
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"allow verbose output (default)"
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, Option ['j'] ["json"] (NoArg (setoutput Annex.JSONOutput))
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"enable JSON output"
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, Option ['d'] ["debug"] (NoArg setdebug)
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"show debug messages"
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, Option ['b'] ["backend"] (ReqArg setforcebackend paramName)
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"specify key-value backend to use"
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]
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where
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setforce v = Annex.changeState $ \s -> s { Annex.force = v }
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setfast v = Annex.changeState $ \s -> s { Annex.fast = v }
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setauto v = Annex.changeState $ \s -> s { Annex.auto = v }
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setoutput v = Annex.changeState $ \s -> s { Annex.output = v }
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setforcebackend v = Annex.changeState $ \s -> s { Annex.forcebackend = Just v }
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setdebug = liftIO $ updateGlobalLogger rootLoggerName $
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setLevel DEBUG
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matcher :: [Option]
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matcher =
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[ longopt "not" "negate next option"
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, longopt "and" "both previous and next option must match"
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, longopt "or" "either previous or next option must match"
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, shortopt "(" "open group of options"
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, shortopt ")" "close group of options"
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]
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where
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longopt o = Option [] [o] $ NoArg $ addToken o
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shortopt o = Option o [] $ NoArg $ addToken o
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{- An option that sets a flag. -}
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flag :: String -> String -> String -> Option
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flag short opt description =
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Option short [opt] (NoArg (Annex.setFlag opt)) description
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{- An option that sets a field. -}
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field :: String -> String -> String -> String -> Option
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field short opt paramdesc description =
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Option short [opt] (ReqArg (Annex.setField opt) paramdesc) description
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{- The flag or field name used for an option. -}
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name :: Option -> String
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name (Option _ o _ _) = Prelude.head o
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