From 5f13457a8e31f424d797f721e93434e09bc9140a Mon Sep 17 00:00:00 2001
From: Łukasz Hanuszczak <lukasz.hanuszczak@gmail.com>
Date: Tue, 30 Jun 2015 19:38:21 +0200
Subject: Create simple test runner for hyperlinker tests.

---
 hypsrc-test/run.hs | 119 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100755 hypsrc-test/run.hs

(limited to 'hypsrc-test/run.hs')

diff --git a/hypsrc-test/run.hs b/hypsrc-test/run.hs
new file mode 100755
index 00000000..0b97a075
--- /dev/null
+++ b/hypsrc-test/run.hs
@@ -0,0 +1,119 @@
+#!/usr/bin/env runhaskell
+{-# LANGUAGE CPP #-}
+
+
+import Control.Applicative
+import Control.Monad
+
+import Data.List
+import Data.Maybe
+
+import System.IO
+import System.Directory
+import System.Environment
+import System.Exit
+import System.FilePath
+import System.Process
+
+import Distribution.Verbosity
+import Distribution.Simple.Utils hiding (die)
+
+
+baseDir, rootDir :: FilePath
+baseDir = takeDirectory __FILE__ 
+rootDir = baseDir </> ".."
+
+srcDir, refDir, outDir :: FilePath
+srcDir = baseDir </> "src"
+refDir = baseDir </> "ref"
+outDir = baseDir </> "out"
+
+haddockPath :: FilePath
+haddockPath = rootDir </> "dist" </> "build" </> "haddock" </> "haddock"
+
+
+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 </>) <$> if "--all" `elem` args || "-a" `elem` args
+        then getAllSrcModules
+        else return mods
+
+    putHaddockVersion
+    putGhcVersion
+
+    putStrLn "Running tests..."
+    runHaddock $
+        [ "--odir=" ++ outDir
+        , "--no-warnings"
+        , "--hyperlinked-source"
+        ] ++ args' ++ mods'
+
+    forM_ mods' $ check True
+
+
+check :: Bool -> FilePath -> IO ()
+check strict mdl = do
+    hasReference <- doesFileExist refFile
+    if hasReference
+    then do
+        out <- readFile outFile
+        ref <- readFile refFile
+        if out == ref
+        then putStrLn $ "Pass: " ++ mdl
+        else do
+            putStrLn $ "Fail: " ++ mdl
+            diff refFile outFile
+            when strict $ die "Aborting further tests."
+    else do
+        putStrLn $ "Pass: " ++ mdl ++ " (no reference file)"
+  where
+    refFile = refDir </> takeBaseName mdl ++ ".html"
+    outFile = outDir </> takeBaseName mdl ++ ".html"
+
+
+diff :: FilePath -> FilePath -> IO ()
+diff fileA fileB = do
+    colorDiffPath <- findProgramLocation silent "colordiff"
+    let cmd = fromMaybe "diff" colorDiffPath
+
+    result <- system $ cmd ++ " " ++ fileA ++ " " ++ fileB
+    unless (result == ExitSuccess) $ die "Failed to run `diff` command."
+
+
+getAllSrcModules :: IO [FilePath]
+getAllSrcModules =
+    filter isValid <$> getDirectoryContents srcDir
+  where
+    isValid = (== ".hs") . takeExtension
+
+
+putHaddockVersion :: IO ()
+putHaddockVersion = do
+    putStrLn "Haddock version:"
+    runHaddock ["--version"]
+    putStrLn ""
+
+
+putGhcVersion :: IO ()
+putGhcVersion = do
+    putStrLn "GHC version:"
+    runHaddock ["--ghc-version"]
+    putStrLn ""
+
+
+runHaddock :: [String] -> IO ()
+runHaddock args = do
+    env <- Just <$> getEnvironment
+    handle <- runProcess haddockPath args Nothing env 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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