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import Distribution.Simple
import Distribution.PackageDescription ( emptyHookedBuildInfo )
import Control.Exception ( bracket_ )
import System.Process ( 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 ( fromJust, isNothing, catMaybes )
main = defaultMainWithHooks $
simpleUserHooks { runTests = runTestSuite
, preConf = checkReferenceODT
, postBuild = makeManPages }
-- | Run test suite.
runTestSuite _ _ _ _ = do
inDirectory "tests" $ runCommand "runhaskell RunTests.hs" >>= waitForProcess
return ()
-- | If reference.odt needs rebuilding, build it.
checkReferenceODT _ _ = inDirectory "odt-styles" $ do
let refodt = "reference.odt"
let deps = [ "meta.xml", "content.xml", "settings.xml", "META-INF/manifest.xml",
"Thumbnails/thumbnail.png", "styles.xml", "mimetype" ]
modifiedDeps <- modifiedDependencies refodt deps
if null modifiedDeps
then return ()
else makeReferenceODT modifiedDeps
return emptyHookedBuildInfo
-- | Create reference.odt by zipping up sources in odt-styles directory.
makeReferenceODT :: [FilePath] -> IO ()
makeReferenceODT sources = do
zipPathMaybe <- findExecutable "zip"
if isNothing zipPathMaybe
then error $ "The 'zip' command, which is needed to build reference.odt\n" ++
"from sources in the odt-styles directory, was not found.\n" ++
"Try again after installing zip (http://www.info-zip.org/Zip.html).\n" ++
"Or use the pandoc source tarball, which contains a prebuilt reference.odt."
else do
putStrLn "Creating reference.odt:"
ec <- runProcess (fromJust zipPathMaybe) (["-9", "-r", "reference.odt"] ++ sources)
Nothing Nothing Nothing Nothing (Just stderr) >>= waitForProcess
case ec of
ExitSuccess -> return ()
_ -> error "Error creating ODT."
-- | Build man pages from markdown sources in man/man1/.
makeManPages _ _ _ _ = do
mapM makeManPage ["pandoc.1", "hsmarkdown.1", "markdown2pdf.1", "html2markdown.1"]
return ()
-- | Build a man page from markdown source in man/man1.
makeManPage manpage = do
let manDir = "man" </> "man1"
let pandoc = "dist" </> "build" </> "pandoc" </> "pandoc"
let page = manDir </> manpage
let source = manDir </> manpage <.> "md"
modifiedDeps <- modifiedDependencies page [source]
if null modifiedDeps
then return ()
else do
ec <- runProcess pandoc ["-s", "-r", "markdown", "-w", "man", "-o", page, source]
Nothing Nothing Nothing Nothing (Just stderr) >>= waitForProcess
case ec of
ExitSuccess -> putStrLn $ "Created " ++ manDir </> manpage
_ -> error $ "Error creating " ++ manDir </> manpage
-- | 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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