Upgrade to haskell-lsp 0.19 (haskell/ghcide#254)

* Upgrade to haskell-lsp 0.19

* Clarify version handling

ghcide.cabal

@@ -41,8 +41,8 @@ library
         extra,
         filepath,
         hashable,
-        haskell-lsp-types >= 0.18,
-        haskell-lsp >= 0.18,
+        haskell-lsp-types == 0.19.*,
+        haskell-lsp == 0.19.*,
         mtl,
         network-uri,
         prettyprinter-ansi-terminal,

src/Development/IDE/Core/FileStore.hs

@@ -76,7 +76,8 @@ makeVFSHandle = do
               modifyVar_ vfsVar $ \(nextVersion, vfs) -> pure $ (nextVersion + 1, ) $
                   case content of
                     Nothing -> Map.delete uri vfs
-                    Just content -> Map.insert uri (VirtualFile nextVersion (Rope.fromText content)) vfs
+                    -- The second version number is only used in persistFileVFS which we do not use so we set it to 0.
+                    Just content -> Map.insert uri (VirtualFile nextVersion 0 (Rope.fromText content)) vfs
         }
 
 makeLSPVFSHandle :: LspFuncs c -> VFSHandle
@@ -139,7 +140,7 @@ getModificationTimeRule vfs =
         alwaysRerun
         mbVirtual <- liftIO $ getVirtualFile vfs $ filePathToUri' file
         case mbVirtual of
-            Just (VirtualFile ver _) -> pure (Just $ BS.pack $ show ver, ([], Just $ VFSVersion ver))
+            Just (virtualFileVersion -> ver) -> pure (Just $ BS.pack $ show ver, ([], Just $ VFSVersion ver))
             Nothing -> liftIO $ fmap wrap (getModTime file')
               `catch` \(e :: IOException) -> do
                 let err | isDoesNotExistError e = "File does not exist: " ++ file'

stack-ghc-lib.yaml

@@ -2,9 +2,9 @@ resolver: nightly-2019-09-16
 packages:
 - .
 extra-deps:
-- haskell-lsp-0.18.0.0
-- haskell-lsp-types-0.18.0.0
-- lsp-test-0.8.2.0
+- haskell-lsp-0.19.0.0
+- haskell-lsp-types-0.19.0.0
+- lsp-test-0.9.0.0
 - hie-bios-0.3.0
 - ghc-lib-parser-8.8.1
 - ghc-lib-8.8.1

stack.yaml

@@ -2,9 +2,9 @@ resolver: nightly-2019-09-16
 packages:
 - .
 extra-deps:
-- haskell-lsp-0.18.0.0
-- haskell-lsp-types-0.18.0.0
-- lsp-test-0.8.2.0
+- haskell-lsp-0.19.0.0
+- haskell-lsp-types-0.19.0.0
+- lsp-test-0.9.0.0
 - hie-bios-0.3.0
 nix:
   packages: [zlib]

stack84.yaml

@@ -3,9 +3,9 @@ packages:
 - .
 
 extra-deps:
-- haskell-lsp-0.18.0.0
-- haskell-lsp-types-0.18.0.0
-- lsp-test-0.8.2.0
+- haskell-lsp-0.19.0.0
+- haskell-lsp-types-0.19.0.0
+- lsp-test-0.9.0.0
 - rope-utf16-splay-0.3.1.0
 - shake-0.18.3
 - filepattern-0.1.1

stack88.yaml

@@ -2,6 +2,9 @@ resolver: nightly-2019-12-06
 packages:
 - .
 extra-deps:
+- haskell-lsp-0.19.0.0
+- haskell-lsp-types-0.19.0.0
+- lsp-test-0.9.0.0
 - hie-bios-0.3.0
 allow-newer: true
 nix: