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-- Tests for the compiler's handling of incremental builds, i.e. the code in
-- Language.PureScript.Make.
module TestMake where
import Prelude ()
import Prelude.Compat
import qualified Language.PureScript as P
import qualified Language.PureScript.CST as CST
import Control.Monad
import Control.Exception (tryJust)
import Control.Monad.IO.Class (liftIO)
import Control.Concurrent.MVar (readMVar, newMVar, modifyMVar_)
import Data.Time.Calendar
import Data.Time.Clock
import qualified Data.Text as T
import Data.Set (Set)
import qualified Data.Set as Set
import qualified Data.Map as M
import System.FilePath
import System.Directory
import System.IO.Error (isDoesNotExistError)
import System.IO.UTF8 (readUTF8FilesT, writeUTF8FileT)
import Test.Tasty
import Test.Tasty.Hspec
utcMidnightOnDate :: Integer -> Int -> Int -> UTCTime
utcMidnightOnDate day month year = UTCTime (fromGregorian day month year) (secondsToDiffTime 0)
timestampA, timestampB, timestampC, timestampD, timestampE, timestampF :: UTCTime
timestampA = utcMidnightOnDate 2019 1 1
timestampB = utcMidnightOnDate 2019 1 2
timestampC = utcMidnightOnDate 2019 1 3
timestampD = utcMidnightOnDate 2019 1 4
timestampE = utcMidnightOnDate 2019 1 5
timestampF = utcMidnightOnDate 2019 1 6
main :: IO TestTree
main = testSpec "make" spec
spec :: Spec
spec = do
let sourcesDir = "tests/purs/make"
let moduleNames = Set.fromList . map P.moduleNameFromString
before_ (rimraf modulesDir >> rimraf sourcesDir >> createDirectory sourcesDir) $ do
it "does not recompile if there are no changes" $ do
let modulePath = sourcesDir </> "Module.purs"
writeFileWithTimestamp modulePath timestampA "module Module where\nfoo = 0\n"
compile [modulePath] `shouldReturn` moduleNames ["Module"]
compile [modulePath] `shouldReturn` moduleNames []
it "recompiles if files have changed" $ do
let modulePath = sourcesDir </> "Module.purs"
writeFileWithTimestamp modulePath timestampA "module Module where\nfoo = 0\n"
compile [modulePath] `shouldReturn` moduleNames ["Module"]
writeFileWithTimestamp modulePath timestampB "module Module where\nfoo = 1\n"
compile [modulePath] `shouldReturn` moduleNames ["Module"]
it "does not recompile if hashes have not changed" $ do
let modulePath = sourcesDir </> "Module.purs"
moduleContent = "module Module where\nfoo = 0\n"
writeFileWithTimestamp modulePath timestampA moduleContent
compile [modulePath] `shouldReturn` moduleNames ["Module"]
writeFileWithTimestamp modulePath timestampB moduleContent
compile [modulePath] `shouldReturn` moduleNames []
it "recompiles if the file path for a module has changed" $ do
let modulePath1 = sourcesDir </> "Module1.purs"
modulePath2 = sourcesDir </> "Module2.purs"
moduleContent = "module Module where\nfoo = 0\n"
writeFileWithTimestamp modulePath1 timestampA moduleContent
writeFileWithTimestamp modulePath2 timestampA moduleContent
compile [modulePath1] `shouldReturn` moduleNames ["Module"]
compile [modulePath2] `shouldReturn` moduleNames ["Module"]
it "recompiles if an FFI file was added" $ do
let moduleBasePath = sourcesDir </> "Module"
modulePath = moduleBasePath ++ ".purs"
moduleFFIPath = moduleBasePath ++ ".js"
moduleContent = "module Module where\nfoo = 0\n"
writeFileWithTimestamp modulePath timestampA moduleContent
compile [modulePath] `shouldReturn` moduleNames ["Module"]
writeFileWithTimestamp moduleFFIPath timestampB "exports.bar = 1;\n"
compile [modulePath] `shouldReturn` moduleNames ["Module"]
it "recompiles if an FFI file was removed" $ do
let moduleBasePath = sourcesDir </> "Module"
modulePath = moduleBasePath ++ ".purs"
moduleFFIPath = moduleBasePath ++ ".js"
moduleContent = "module Module where\nfoo = 0\n"
writeFileWithTimestamp modulePath timestampA moduleContent
writeFileWithTimestamp moduleFFIPath timestampB "exports.bar = 1;\n"
compile [modulePath] `shouldReturn` moduleNames ["Module"]
removeFile moduleFFIPath
compile [modulePath] `shouldReturn` moduleNames ["Module"]
it "recompiles downstream modules when a module is rebuilt" $ do
let moduleAPath = sourcesDir </> "A.purs"
moduleBPath = sourcesDir </> "B.purs"
moduleAContent1 = "module A where\nfoo = 0\n"
moduleAContent2 = "module A where\nfoo = 1\n"
moduleBContent = "module B where\nimport A (foo)\nbar = foo\n"
writeFileWithTimestamp moduleAPath timestampA moduleAContent1
writeFileWithTimestamp moduleBPath timestampB moduleBContent
compile [moduleAPath, moduleBPath] `shouldReturn` moduleNames ["A", "B"]
writeFileWithTimestamp moduleAPath timestampC moduleAContent2
compile [moduleAPath, moduleBPath] `shouldReturn` moduleNames ["A", "B"]
it "only recompiles downstream modules when a module is rebuilt" $ do
let moduleAPath = sourcesDir </> "A.purs"
moduleBPath = sourcesDir </> "B.purs"
moduleCPath = sourcesDir </> "C.purs"
modulePaths = [moduleAPath, moduleBPath, moduleCPath]
moduleAContent1 = "module A where\nfoo = 0\n"
moduleAContent2 = "module A where\nfoo = 1\n"
moduleBContent = "module B where\nimport A (foo)\nbar = foo\n"
moduleCContent = "module C where\nbaz = 3\n"
writeFileWithTimestamp moduleAPath timestampA moduleAContent1
writeFileWithTimestamp moduleBPath timestampB moduleBContent
writeFileWithTimestamp moduleCPath timestampC moduleCContent
compile modulePaths `shouldReturn` moduleNames ["A", "B", "C"]
writeFileWithTimestamp moduleAPath timestampD moduleAContent2
compile modulePaths `shouldReturn` moduleNames ["A", "B"]
it "does not necessarily recompile modules which were not part of the previous batch" $ do
let moduleAPath = sourcesDir </> "A.purs"
moduleBPath = sourcesDir </> "B.purs"
moduleCPath = sourcesDir </> "C.purs"
modulePaths = [moduleAPath, moduleBPath, moduleCPath]
batch1 = [moduleAPath, moduleBPath]
batch2 = [moduleAPath, moduleCPath]
moduleAContent = "module A where\nfoo = 0\n"
moduleBContent = "module B where\nimport A (foo)\nbar = foo\n"
moduleCContent = "module C where\nbaz = 3\n"
writeFileWithTimestamp moduleAPath timestampA moduleAContent
writeFileWithTimestamp moduleBPath timestampB moduleBContent
writeFileWithTimestamp moduleCPath timestampC moduleCContent
compile modulePaths `shouldReturn` moduleNames ["A", "B", "C"]
compile batch1 `shouldReturn` moduleNames []
compile batch2 `shouldReturn` moduleNames []
it "recompiles if a module fails to compile" $ do
let modulePath = sourcesDir </> "Module.purs"
moduleContent = "module Module where\nfoo :: Int\nfoo = \"not an int\"\n"
writeFileWithTimestamp modulePath timestampA moduleContent
compileAllowingFailures [modulePath] `shouldReturn` moduleNames ["Module"]
compileAllowingFailures [modulePath] `shouldReturn` moduleNames ["Module"]
rimraf :: FilePath -> IO ()
rimraf =
void . tryJust (guard . isDoesNotExistError) . removeDirectoryRecursive
-- | Returns a set of the modules for which a rebuild was attempted, including
-- the make result.
compileWithResult :: [FilePath] -> IO (Either P.MultipleErrors [P.ExternsFile], Set P.ModuleName)
compileWithResult input = do
recompiled <- newMVar Set.empty
moduleFiles <- readUTF8FilesT input
(makeResult, _) <- P.runMake P.defaultOptions $ do
ms <- CST.parseModulesFromFiles id moduleFiles
let filePathMap = M.fromList $ map (\(fp, pm) -> (P.getModuleName $ CST.resPartial pm, Right fp)) ms
foreigns <- P.inferForeignModules filePathMap
let makeActions =
(P.buildMakeActions modulesDir filePathMap foreigns True)
{ P.progress = \(P.CompilingModule mn) ->
liftIO $ modifyMVar_ recompiled (return . Set.insert mn)
}
P.make makeActions (map snd ms)
recompiledModules <- readMVar recompiled
pure (makeResult, recompiledModules)
-- | Compile, returning the set of modules which were rebuilt, and failing if
-- any errors occurred.
compile :: [FilePath] -> IO (Set P.ModuleName)
compile input = do
(result, recompiled) <- compileWithResult input
case result of
Left errs ->
fail (P.prettyPrintMultipleErrors P.defaultPPEOptions errs)
Right _ ->
pure recompiled
compileAllowingFailures :: [FilePath] -> IO (Set P.ModuleName)
compileAllowingFailures input = fmap snd (compileWithResult input)
writeFileWithTimestamp :: FilePath -> UTCTime -> T.Text -> IO ()
writeFileWithTimestamp path mtime contents = do
writeUTF8FileT path contents
setModificationTime path mtime
-- | Use a different output directory to ensure that we don't get interference
-- from other test results
modulesDir :: FilePath
modulesDir = ".test_modules" </> "make"
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