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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.InstallDirs (mandir, bindir, CopyDest (NoCopyDest))
import Distribution.Simple.Utils (copyFiles)
import Control.Exception ( bracket_ )
import Control.Monad ( unless )
import System.Process ( rawSystem, runCommand, runProcess, waitForProcess )
import System.FilePath ( (</>), (<.>) )
import System.Directory
import System.IO ( stderr )
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 = 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/man1/.
makeManPages :: Args -> BuildFlags -> PackageDescription -> LocalBuildInfo -> IO ()
makeManPages _ flags _ bi = do
let pandocPath = (buildDir bi) </> "pandoc" </> "pandoc"
let verbosity = fromFlag $ buildVerbosity flags
-- make markdown2pdf.1 from markdown2pdf.1.md
makeManPage pandocPath verbosity "markdown2pdf.1"
-- make pandoc.1 from README
let pandocpage = manDir </> "pandoc.1"
modifiedDeps <- modifiedDependencies pandocpage ["README"]
unless (null modifiedDeps) $ do
let cmd = "runghc -package-conf=dist/package.conf.inplace MakeManPage.hs"
ec <- runCommand cmd >>= waitForProcess
case ec of
ExitSuccess -> unless (verbosity == silent) $
putStrLn $ "Created " ++ pandocpage
ExitFailure n -> putStrLn ("Error creating " ++ pandocpage ++
". Exit code = " ++ show n) >> exitWith ec
manpages :: [FilePath]
manpages = ["pandoc.1", "markdown2pdf.1"]
manDir :: FilePath
manDir = "man" </> "man1"
-- | Build a man page from markdown source in man/man1.
makeManPage :: FilePath -> Verbosity -> FilePath -> IO ()
makeManPage pandoc verbosity manpage = do
let page = manDir </> manpage
let source = page <.> "md"
modifiedDeps <- modifiedDependencies page [source]
unless (null modifiedDeps) $ do
ec <- runProcess pandoc ["-s", "-S", "-r", "markdown", "-w", "man",
"--template=templates/man.template", "-o", page, source]
Nothing Nothing Nothing Nothing (Just stderr) >>= waitForProcess
case ec of
ExitSuccess -> unless (verbosity == silent) $
putStrLn $ "Created " ++ page
ExitFailure n -> putStrLn ("Error creating " ++ page ++
". Exit code = " ++ show n) >> exitWith ec
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) </> "man1")
(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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