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{-
Copyright (C) 2006-2014 John MacFarlane <jgm@berkeley.edu>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-}
import Distribution.Simple
import Distribution.Simple.PreProcess
import Distribution.PackageDescription (PackageDescription(..), Executable(..))
import System.Process ( rawSystem )
import System.FilePath ( (</>) )
import System.Directory ( findExecutable )
import Distribution.Simple.Utils (info)
main :: IO ()
main = defaultMainWithHooks $ simpleUserHooks {
-- enable hsb2hs preprocessor for .hsb files
hookedPreProcessors = [ppBlobSuffixHandler]
-- ensure that make-pandoc-man-pages doesn't get installed to bindir
, copyHook = \pkgdescr ->
(copyHook simpleUserHooks) pkgdescr{ executables =
[x | x <- executables pkgdescr, exeName x /= "make-pandoc-man-pages"] }
, instHook = \pkgdescr ->
(instHook simpleUserHooks) pkgdescr{ executables =
[x | x <- executables pkgdescr, exeName x /= "make-pandoc-man-pages"] }
}
ppBlobSuffixHandler :: PPSuffixHandler
ppBlobSuffixHandler = ("hsb", \_ _ ->
PreProcessor {
platformIndependent = True,
runPreProcessor = mkSimplePreProcessor $ \infile outfile verbosity ->
do info verbosity $ "Preprocessing " ++ infile ++ " to " ++ outfile
hsb2hsPath <- findExecutable "hsb2hs"
case hsb2hsPath of
Just p -> rawSystem p [infile, infile, outfile]
Nothing -> error "hsb2hs is needed to build this program: cabal install hsb2hs"
return ()
})
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