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Setup.hs
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Setup.hs
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import Distribution.PackageDescription (
HookedBuildInfo,
emptyHookedBuildInfo )
import Distribution.Simple (
Args,
UserHooks ( preSDist ),
defaultMainWithHooks,
simpleUserHooks )
import Distribution.Simple.Setup ( SDistFlags )
-- | This requires the process package from,
--
-- https://hackage.haskell.org/package/process
--
import System.Process ( callCommand )
-- | This will use almost the default implementation, except we switch
-- out the default pre-sdist hook with our own, 'myPreSDist'.
--
main = defaultMainWithHooks myHooks
where
myHooks = simpleUserHooks { preSDist = myPreSDist }
-- | This hook will be executed before e.g. @cabal sdist@. It runs
-- pandoc to create the man page from shellcheck.1.md. If the pandoc
-- command is not found, this will fail with an error message:
--
-- /bin/sh: pandoc: command not found
--
-- Since the man page is listed in the Extra-Source-Files section of
-- our cabal file, a failure here should result in a failure to
-- create the distribution tarball (that's a good thing).
--
myPreSDist :: Args -> SDistFlags -> IO HookedBuildInfo
myPreSDist _ _ = do
putStrLn "Building the man page..."
putStrLn pandoc_cmd
callCommand pandoc_cmd
return emptyHookedBuildInfo
where
pandoc_cmd = "pandoc -s -t man shellcheck.1.md -o shellcheck.1"