Build and test

Stackage/LoadDatabase.hs

@@ -12,8 +12,7 @@ import           Data.Monoid                           (Monoid (..))
 import           Data.Set                              (member)
 import qualified Data.Set                              as Set
 import           Distribution.Package                  (Dependency (Dependency))
-import           Distribution.PackageDescription       (condBenchmarks,
-                                                        condExecutables,
+import           Distribution.PackageDescription       (condExecutables,
                                                         condLibrary,
                                                         condTestSuites,
                                                         condTreeConstraints)

app/gen-install-line.hs

@@ -1,3 +1,5 @@
+import           Control.Monad            (when, unless, foldM)
+import           Data.List                (sort)
 import qualified Data.Map                 as Map
 import qualified Data.Set                 as Set
 import           Data.Version             (showVersion)
@@ -7,13 +9,112 @@ import           Stackage.NarrowDatabase
 import           Stackage.PackageList
 import           Stackage.Types
 import           Stackage.Util
+import           System.Directory         (doesDirectoryExist, removeDirectoryRecursive, removeFile, createDirectory)
+import           System.Process           (readProcess, waitForProcess, runProcess)
+import System.Exit (ExitCode (ExitSuccess), exitWith)
+import System.FilePath ((</>), (<.>))
+import System.IO (IOMode (WriteMode, AppendMode), withBinaryFile)
+
+data Mismatch = OnlyDryRun String | OnlySimpleList String
+    deriving Show
+
+extraCore :: Set PackageName
+extraCore = Set.singleton $ PackageName "binary"
+
+-- Test suites which are expected to fail for some reason. The test suite
+-- will still be run and logs kept, but a failure will not indicate an
+-- error in our package combination.
+expectedFailures :: Set PackageName
+expectedFailures = Set.fromList $ map PackageName
+    [ -- Requires an old version of WAI and Warp for tests
+      "HTTP"
+      -- Requires a special hspec-meta which is not yet available from
+      -- Hackage.
+    , "hspec"
+    ]
 
 main :: IO ()
 main = do
     userPackages <- loadPackageList "package-list.txt"
     hp <- loadHaskellPlatform
     let allPackages = Map.union userPackages $ identsToRanges (hplibs hp)
-    pdb <- loadPackageDB (Set.map (\(PackageIdentifier p _) -> p) (hpcore hp)) allPackages
+    pdb <- loadPackageDB (extraCore `Set.union` Set.map (\(PackageIdentifier p _) -> p) (hpcore hp)) allPackages
     final <- narrowPackageDB pdb $ Set.fromList $ Map.keys allPackages
-    putStr "cabal-dev install -fnetwork23 --enable-tests "
-    mapM_ (\(PackageName p, v) -> putStr $ p ++ "-" ++ showVersion v ++ " ") $ Map.toList final
+    let simpleList = map (\(PackageName p, v) -> p ++ "-" ++ showVersion v) $ Map.toList final
+    writeFile "to-install.txt" $ unlines simpleList
+
+    rm_r "cabal-dev"
+
+    dryRun' <- readProcess "cabal-dev" ("install":"--dry-run":"-fnetwork23":simpleList) ""
+    writeFile "dry-run.txt" dryRun'
+    let dryRun = sort $ drop 2 $ lines dryRun'
+    let mismatches = getMismatches dryRun simpleList
+    if null mismatches
+        then do
+            putStrLn "No mismatches, good to go!"
+            ph <- withBinaryFile "build.log" WriteMode $ \handle -> runProcess "cabal-dev" ("install":"-fnetwork23":simpleList) Nothing Nothing Nothing (Just handle) (Just handle)
+            ec <- waitForProcess ph
+            unless (ec == ExitSuccess) $ exitWith ec
+            putStrLn "Environment built, beginning individual test suites"
+            let testdir = "runtests"
+            rm_r testdir
+            createDirectory testdir
+            allPass <- foldM (runTestSuite testdir) True $ zip simpleList $ Map.toList final
+            if allPass
+                then putStrLn "All test suites pass"
+                else putStrLn "There were failures, please see the logs in runtests"
+        else do
+            putStrLn "Found the following mismtaches"
+            mapM_ print mismatches
+
+rm_r :: FilePath -> IO ()
+rm_r fp = do
+    exists <- doesDirectoryExist fp
+    when exists $ removeDirectoryRecursive fp
+
+runTestSuite :: FilePath -> Bool -> (String, (PackageName, Version)) -> IO Bool
+runTestSuite testdir prevPassed (package, (packageName, _)) = do
+    passed <- do
+        ph1 <- getHandle WriteMode $ \handle -> runProcess "cabal-dev" ["unpack", package] (Just testdir) Nothing Nothing (Just handle) (Just handle)
+        ec1 <- waitForProcess ph1
+        if (ec1 /= ExitSuccess)
+            then return False
+            else do
+                putStrLn dir
+                ph2 <- getHandle AppendMode $ \handle -> runProcess "cabal-dev" ["-s", "../../cabal-dev", "configure", "--enable-tests"] (Just dir) Nothing Nothing (Just handle) (Just handle)
+                ec2 <- waitForProcess ph2
+                if (ec2 /= ExitSuccess)
+                    then return False
+                    else do
+                        ph3 <- getHandle AppendMode $ \handle -> runProcess "cabal-dev" ["build"] (Just dir) Nothing Nothing (Just handle) (Just handle)
+                        ec3 <- waitForProcess ph3
+                        if (ec3 /= ExitSuccess)
+                            then return False
+                            else do
+                                ph4 <- getHandle AppendMode $ \handle -> runProcess "cabal-dev" ["test"] (Just dir) Nothing Nothing (Just handle) (Just handle)
+                                ec4 <- waitForProcess ph4
+                                return $ ec4 == ExitSuccess
+    let expectedFailure = packageName `Set.member` expectedFailures
+    if passed
+        then do
+            removeFile logfile
+            when expectedFailure $ putStrLn $ package ++ " passed, but I didn't think it would."
+        else putStrLn $ "Test suite failed: " ++ package
+    rm_r dir
+    return $! prevPassed && (passed || expectedFailure)
+  where
+    logfile = testdir </> package <.> "log"
+    dir = testdir </> package
+    getHandle mode = withBinaryFile logfile mode
+
+getMismatches :: [String] -> [String] -> [Mismatch]
+getMismatches =
+    go
+  where
+    go [] y = map OnlySimpleList y
+    go x [] = map OnlyDryRun x
+    go (x:xs) (y:ys) =
+        case compare x y of
+            EQ -> go xs ys
+            LT -> OnlyDryRun x     : go xs (y:ys)
+            GT -> OnlySimpleList y : go (x:xs) ys

package-list.txt

@@ -4,5 +4,7 @@ yesod-newsfeed
 yesod-sitemap
 yesod-static
 
--- Constraints
-binary == 0.5.1.0
+-- Extra dependencies not caught otherwise
+cipher-aes
+hinotify
+unix-time

stackage.cabal

@@ -35,3 +35,6 @@ executable stackage-gen-install-line
   build-depends:       base
                      , stackage
                      , containers
+                     , filepath
+                     , process
+                     , directory