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-----------------------------------------------------------------------------
-- |
-- Module : Hadrian.Builder.Tar
-- Copyright : (c) Andrey Mokhov 2014-2017
-- License : MIT (see the file LICENSE)
-- Maintainer : andrey.mokhov@gmail.com
-- Stability : experimental
--
-- Support for invoking the archiving utility @tar@.
-----------------------------------------------------------------------------
module Hadrian.Builder.Tar (TarMode (..), args) where
import Development.Shake
import Development.Shake.Classes
import GHC.Generics
import Hadrian.Expression
-- | Tar can be used to 'Create' an archive or 'Extract' from it.
data TarMode = Create | Extract deriving (Eq, Generic, Show)
instance Binary TarMode
instance Hashable TarMode
instance NFData TarMode
-- | Default command line arguments for invoking the archiving utility @tar@.
args :: (ShakeValue c, ShakeValue b) => TarMode -> Args c b
args Create = mconcat
[ arg "-c"
, output "//*.gz" ? arg "--gzip"
, output "//*.bz2" ? arg "--bzip2"
, output "//*.xz" ? arg "--xz"
, arg "-f", arg =<< getOutput
, getInputs ]
args Extract = mconcat
[ arg "-x"
, input "*.gz" ? arg "--gzip"
, input "*.bz2" ? arg "--bzip2"
, input "*.xz" ? arg "--xz"
, arg "-f", arg =<< getInput
, arg "-C", arg =<< getOutput ]
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