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import Distribution.Simple
import Distribution.Simple.Setup
(copyDest, copyVerbosity, fromFlag, installVerbosity, BuildFlags(..))
import Distribution.PackageDescription
(PackageDescription(..), Executable(..), BuildInfo(..))
import Distribution.Simple.LocalBuildInfo
(LocalBuildInfo(..), absoluteInstallDirs)
import Distribution.Verbosity ( Verbosity, silent )
import Distribution.Simple.GHC (ghcPackageDbOptions)
import Distribution.Simple.InstallDirs (mandir, bindir, CopyDest (NoCopyDest))
import Distribution.Simple.Utils (copyFiles)
import Control.Exception ( bracket_ )
import Control.Monad ( unless )
import System.Process ( rawSystem, runCommand, waitForProcess )
import System.FilePath ( (</>) )
import System.Directory
import System.Exit
import System.Time
import System.IO.Error ( isDoesNotExistError )
import Data.Maybe ( catMaybes )
import Data.List ( (\\) )
main :: IO ()
main = do
defaultMainWithHooks $ simpleUserHooks {
runTests = runTestSuite
, postBuild = makeManPages
, postCopy = \ _ flags pkg lbi -> do
installManpages pkg lbi (fromFlag $ copyVerbosity flags)
(fromFlag $ copyDest flags)
installScripts pkg lbi (fromFlag $ copyVerbosity flags)
(fromFlag $ copyDest flags)
, postInst = \ _ flags pkg lbi -> do
installManpages pkg lbi (fromFlag $ installVerbosity flags) NoCopyDest
installScripts pkg lbi (fromFlag $ installVerbosity flags) NoCopyDest
}
exitWith ExitSuccess
-- | Run test suite.
runTestSuite :: Args -> Bool -> PackageDescription -> LocalBuildInfo -> IO a
runTestSuite args _ pkg lbi = do
let testDir = buildDir lbi </> "test-pandoc"
testDir' <- canonicalizePath testDir
let testArgs = "--timeout=5" : concatMap (\arg -> ["-t",arg]) args
if any id [buildable (buildInfo exe) | exe <- executables pkg, exeName exe == "test-pandoc"]
then inDirectory "tests" $ rawSystem (testDir' </> "test-pandoc") testArgs >>= exitWith
else do
putStrLn "Build pandoc with the 'tests' flag to run tests"
exitWith $ ExitFailure 3
-- | Build man pages from markdown sources in man/
makeManPages :: Args -> BuildFlags -> PackageDescription -> LocalBuildInfo -> IO ()
makeManPages _ flags _ lbi = do
ds1 <- modifiedDependencies (manDir </> "man1" </> "pandoc.1")
["README", manDir </> "man1" </> "pandoc.1.template"]
ds2 <- modifiedDependencies (manDir </> "man1" </> "markdown2pdf.1")
[manDir </> "man1" </> "markdown2pdf.1.md"]
ds3 <- modifiedDependencies (manDir </> "man5" </> "pandoc_markdown.5")
["README", manDir </> "man5" </> "pandoc_markdown.5.template"]
let distPref = fromFlag (buildDistPref flags)
packageDB =
withPackageDB lbi
++ [SpecificPackageDB $ distPref </> "package.conf.inplace"]
verbosity = fromFlag $ buildVerbosity flags
args = makeGhcArgs (ghcPackageDbOptions packageDB)
++ ["MakeManPage.hs"]
args' = if verbosity == silent
then args
else args ++ ["--verbose"]
-- Don't run MakeManPage.hs unless we have to
unless (null ds1 && null ds2 && null ds3) $ do
rawSystem "runghc" args' >>= exitWith
-- format arguments to runghc that we wish to pass to ghc
-- normally runghc gets it right, unless the argument does
-- not begin with a '-' charecter, so we need to give clear
-- directions.
makeGhcArgs :: [String] -> [String]
makeGhcArgs = map ("--ghc-arg="++)
manpages :: [FilePath]
manpages = ["man1" </> "pandoc.1"
,"man1" </> "markdown2pdf.1"
,"man5" </> "pandoc_markdown.5"]
manDir :: FilePath
manDir = "man"
installScripts :: PackageDescription -> LocalBuildInfo
-> Verbosity -> CopyDest -> IO ()
installScripts pkg lbi verbosity copy =
copyFiles verbosity (bindir (absoluteInstallDirs pkg lbi copy))
(zip (repeat ".") (wrappers \\ exes))
where exes = map exeName $ filter isBuildable $ executables pkg
isBuildable = buildable . buildInfo
wrappers = ["markdown2pdf"]
installManpages :: PackageDescription -> LocalBuildInfo
-> Verbosity -> CopyDest -> IO ()
installManpages pkg lbi verbosity copy =
copyFiles verbosity (mandir (absoluteInstallDirs pkg lbi copy))
(zip (repeat manDir) manpages)
-- | Returns a list of 'dependencies' that have been modified after 'file'.
modifiedDependencies :: FilePath -> [FilePath] -> IO [FilePath]
modifiedDependencies file dependencies = do
fileModTime <- catch (getModificationTime file) $
\e -> if isDoesNotExistError e
then return (TOD 0 0) -- the minimum ClockTime
else ioError e
depModTimes <- mapM getModificationTime dependencies
let modified = zipWith (\dep time -> if time > fileModTime then Just dep else Nothing) dependencies depModTimes
return $ catMaybes modified
-- | Perform an IO action in a directory.
inDirectory :: FilePath -> IO a -> IO a
inDirectory dir action = do
oldDir <- getCurrentDirectory
bracket_ (setCurrentDirectory dir) (setCurrentDirectory oldDir) action
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