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#!/usr/bin/env runhaskell
{-# LANGUAGE CPP #-}
import Control.Monad
import Data.List
import Data.Maybe
import System.Directory
import System.Environment
import System.Exit
import System.FilePath
import System.Process
import Distribution.Verbosity
import Distribution.Simple.Utils hiding (die)
import Utils
main :: IO ()
main = do
haddockAvailable <- doesFileExist haddockPath
unless haddockAvailable $ die "Haddock exectuable not available"
(args, mods) <- partition ("-" `isPrefixOf`) <$> getArgs
let args' = filter (\arg -> not $ arg == "--all" || arg == "-a") args
mods' <- map (srcDir </>) <$> case args of
[] -> getAllSrcModules
_ -> return $ map (++ ".hs") mods
putHaddockVersion
putGhcVersion
putStrLn "Running tests..."
runHaddock $
[ "--odir=" ++ outDir
, "--no-warnings"
, "--hyperlinked-source"
, "--pretty-html"
] ++ args' ++ mods'
forM_ mods' $ check True
check :: Bool -> FilePath -> IO ()
check strict mdl = do
hasReference <- doesFileExist refFile
if hasReference
then do
ref <- readFile refFile
out <- readFile outFile
compareOutput strict mdl ref out
else do
putStrLn $ "Pass: " ++ mdl ++ " (no reference file)"
where
refFile = refDir' </> takeBaseName mdl ++ ".html"
outFile = outDir' </> takeBaseName mdl ++ ".html"
compareOutput :: Bool -> FilePath -> String -> String -> IO ()
compareOutput strict mdl ref out = do
if ref' == out'
then putStrLn $ "Pass: " ++ mdl
else do
putStrLn $ "Fail: " ++ mdl
diff mdl ref' out'
when strict $ die "Aborting further tests."
where
ref' = stripLocalReferences ref
out' = stripLocalReferences out
diff :: FilePath -> String -> String -> IO ()
diff mdl ref out = do
colorDiffPath <- findProgramLocation silent "colordiff"
let cmd = fromMaybe "diff" colorDiffPath
writeFile refFile ref
writeFile outFile out
result <- system $ cmd ++ " " ++ refFile ++ " " ++ outFile
unless (result == ExitSuccess) $ die "Failed to run `diff` command."
where
refFile = outDir </> takeBaseName mdl ++ ".ref.nolinks"
outFile = outDir </> takeBaseName mdl ++ ".nolinks"
getAllSrcModules :: IO [FilePath]
getAllSrcModules =
filter isHaskellFile <$> getDirectoryContents srcDir
where
isHaskellFile = (== ".hs") . takeExtension
putHaddockVersion :: IO ()
putHaddockVersion = do
putStrLn "Haddock version:"
runHaddock ["--version"]
putStrLn ""
putGhcVersion :: IO ()
putGhcVersion = do
putStrLn "GHC version:"
runHaddock ["--ghc-version"]
putStrLn ""
runHaddock :: [String] -> IO ()
runHaddock args = do
menv <- Just <$> getEnvironment
handle <- runProcess haddockPath args Nothing menv Nothing Nothing Nothing
waitForSuccess handle $ "Failed to invoke haddock with " ++ show args
waitForSuccess :: ProcessHandle -> String -> IO ()
waitForSuccess handle msg = do
result <- waitForProcess handle
unless (result == ExitSuccess) $ die msg
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