Handle env vars set to "0"

[lsp-test.git] / src / Language / Haskell / LSP / Test.hs

diff --git a/src/Language/Haskell/LSP/Test.hs b/src/Language/Haskell/LSP/Test.hs
index b098bf723ec559763951fd3bde1e991837661751..bca640f532c712ea051c28ad34f506bf3c501238 100644 (file)
--- a/src/Language/Haskell/LSP/Test.hs
+++ b/src/Language/Haskell/LSP/Test.hs
@@ -37,6 +37,7 @@ module Language.Haskell.LSP.Test
   , module Language.Haskell.LSP.Test.Parsing
   -- * Utilities
   -- | Quick helper functions for common tasks.
+
   -- ** Initialization
   , initializeResponse
   -- ** Documents
@@ -109,6 +110,7 @@ import Language.Haskell.LSP.Test.Exceptions
 import Language.Haskell.LSP.Test.Parsing
 import Language.Haskell.LSP.Test.Session
 import Language.Haskell.LSP.Test.Server
+import System.Environment
 import System.IO
 import System.Directory
 import System.FilePath
@@ -136,10 +138,12 @@ runSessionWithConfig :: SessionConfig -- ^ Configuration options for the session
                      -> FilePath -- ^ The filepath to the root directory for the session.
                      -> Session a -- ^ The session to run.
                      -> IO a
-runSessionWithConfig config serverExe caps rootDir session = do
+runSessionWithConfig config' serverExe caps rootDir session = do
   pid <- getCurrentProcessID
   absRootDir <- canonicalizePath rootDir
 
+  config <- envOverrideConfig config'
+
   let initializeParams = InitializeParams (Just pid)
                                           (Just $ T.pack absRootDir)
                                           (Just $ filePathToUri absRootDir)
@@ -184,6 +188,17 @@ runSessionWithConfig config serverExe caps rootDir session = do
       (RspShutdown _) -> return ()
       _               -> listenServer serverOut context
 
+  -- | Check environment variables to override the config
+  envOverrideConfig :: SessionConfig -> IO SessionConfig
+  envOverrideConfig cfg = do
+    logMessages' <- fromMaybe (logMessages cfg) <$> checkEnv "LSP_TEST_LOG_MESSAGES"
+    logStdErr' <- fromMaybe (logStdErr cfg) <$> checkEnv "LSP_TEST_LOG_STDERR"
+    return $ cfg { logMessages = logMessages', logStdErr = logStdErr' }
+    where checkEnv :: String -> IO (Maybe Bool)
+          checkEnv s = fmap convertVal <$> lookupEnv s
+          convertVal "0" = False
+          convertVal _ = True
+
 -- | The current text contents of a document.
 documentContents :: TextDocumentIdentifier -> Session T.Text
 documentContents doc = do
@@ -273,7 +288,7 @@ sendNotification TextDocumentDidOpen params = do
       n :: DidOpenTextDocumentNotification
       n = NotificationMessage "2.0" TextDocumentDidOpen params'
   oldVFS <- vfs <$> get
-  newVFS <- liftIO $ openVFS oldVFS n
+  let (newVFS,_) = openVFS oldVFS n
   modify (\s -> s { vfs = newVFS })
   sendMessage n
 
@@ -283,7 +298,7 @@ sendNotification TextDocumentDidClose params = do
       n :: DidCloseTextDocumentNotification
       n = NotificationMessage "2.0" TextDocumentDidClose params'
   oldVFS <- vfs <$> get
-  newVFS <- liftIO $ closeVFS oldVFS n
+  let (newVFS,_) = closeVFS oldVFS n
   modify (\s -> s { vfs = newVFS })
   sendMessage n
 
@@ -292,7 +307,7 @@ sendNotification TextDocumentDidChange params = do
         n :: DidChangeTextDocumentNotification
         n = NotificationMessage "2.0" TextDocumentDidChange params'
     oldVFS <- vfs <$> get
-    newVFS <- liftIO $ changeFromClientVFS oldVFS n
+    let (newVFS,_) = changeFromClientVFS oldVFS n
     modify (\s -> s { vfs = newVFS })
     sendMessage n
 
@@ -452,7 +467,7 @@ getVersionedDoc (TextDocumentIdentifier uri) = do
   fs <- vfsMap . vfs <$> get
   let ver =
         case fs Map.!? toNormalizedUri uri of
-          Just (VirtualFile v _) -> Just v
+          Just vf -> Just (virtualFileVersion vf)
           _ -> Nothing
   return (VersionedTextDocumentIdentifier uri ver)