Merge pull request #1409 from haskell-servant/maksbotan/ghc-9

Update for GHC 9.0.1

.github/workflows/master.yml

@@ -13,14 +13,15 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        cabal: ["3.2"]
+        cabal: ["3.4"]
         ghc:
           - "8.0.2"
           - "8.2.2"
           - "8.4.4"
           - "8.6.5"
           - "8.8.4"
-          - "8.10.2"
+          - "8.10.4"
+          - "9.0.1"
 
     steps:
     - uses: actions/checkout@v2
@@ -49,7 +50,10 @@ jobs:
 
     - name: Configure
       run: |
-        cabal install --ignore-project -j2 doctest --constraint='doctest ^>=0.17'
+        # Using separate store-dir because default one already has 'ghc-paths' package installed
+        # with hardcoded path to ghcup's GHC path (which it was built with). This leads to failure in
+        # doctest, as it tries to invoke that GHC, and it doesn't exist here.
+        cabal --store-dir /tmp/cabal-store install --ignore-project -j2 doctest --constraint='doctest ^>=0.18'
 
     - name: Build
       run: |
@@ -60,6 +64,9 @@ jobs:
         cabal test all
 
     - name: Run doctests
+      # doctests are broken on GHC 9 due to compiler bug:
+      # https://gitlab.haskell.org/ghc/ghc/-/issues/19460
+      continue-on-error: ${{ matrix.ghc == '9.0.1' }}
       run: |
         # Necessary for doctest to be found in $PATH
         export PATH="$HOME/.cabal/bin:$PATH"

cabal.project

@@ -3,8 +3,7 @@ packages:
   servant-client/
   servant-client-core/
   servant-http-streams/
--- Tests failing with Cabal (TODO: investigate)
+  servant-docs/
---  servant-docs/
   servant-foreign/
   servant-server/
   doc/tutorial/
@@ -26,7 +25,8 @@ packages:
   doc/cookbook/custom-errors
   doc/cookbook/basic-streaming
   doc/cookbook/db-postgres-pool
-  doc/cookbook/db-sqlite-simple
+  --doc/cookbook/db-sqlite-simple
+  -- ^ BROKEN blaze-textual
   doc/cookbook/file-upload
   doc/cookbook/generic
   doc/cookbook/hoist-server-with-context
@@ -36,7 +36,8 @@ packages:
   -- doc/cookbook/sentry
   -- Commented out because servant-quickcheck currently doesn't build.
   -- doc/cookbook/testing
-  doc/cookbook/uverb
+  --doc/cookbook/uverb
+  -- ^ BROKEN servant-swagger -> optics-th
   doc/cookbook/structuring-apis
   doc/cookbook/using-custom-monad
   doc/cookbook/using-free-client
@@ -64,8 +65,7 @@ write-ghc-environment-files: always
 allow-newer: servant-pagination-2.2.2:servant
 allow-newer: servant-pagination-2.2.2:servant-server
 
--- https://github.com/haskell-servant/servant-multipart/pull/41
-allow-newer: servant-multipart:servant
-allow-newer: servant-multipart:servant-server
-allow-newer: servant-multipart:servant-client-core
 allow-newer: servant-js:servant
+
+-- ghc 9
+allow-newer: tdigest:base

doc/tutorial/tutorial.cabal

@@ -68,9 +68,9 @@ library
     , cookie       >= 0.4.3   && < 0.5
     , js-jquery    >= 3.3.1   && < 3.4
     , lucid        >= 2.9.11  && < 2.10
-    , random       >= 1.1     && < 1.2
+    , random       >= 1.1     && < 1.3
     , servant-js   >= 0.9     && < 0.10
-    , time         >= 1.6.0.1 && < 1.10
+    , time         >= 1.6.0.1 && < 1.13
 
   -- For legacy tools, we need to specify build-depends too
   build-depends: markdown-unlit >= 0.5.0 && <0.6

servant-client-core/servant-client-core.cabal

@@ -16,7 +16,7 @@ author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 copyright:           2014-2016 Zalora South East Asia Pte Ltd, 2016-2019 Servant Contributors
 build-type:          Simple
-tested-with: GHC ==8.0.2 || ==8.2.2 || ==8.4.4 || ==8.6.5 || ==8.8.4 || ==8.10.2
+tested-with: GHC ==8.0.2 || ==8.2.2 || ==8.4.4 || ==8.6.5 || ==8.8.4 || ==8.10.2 || ==9.0.1
            , GHCJS == 8.4
 
 extra-source-files:
@@ -50,13 +50,13 @@ library
   --
   -- note: mtl lower bound is so low because of GHC-7.8
   build-depends:
-      base                  >= 4.9      && < 4.15
+      base                  >= 4.9      && < 4.16
     , bytestring            >= 0.10.8.1 && < 0.12
     , containers            >= 0.5.7.1  && < 0.7
     , deepseq               >= 1.4.2.0  && < 1.5
     , text                  >= 1.2.3.0  && < 1.3
     , transformers          >= 0.5.2.0  && < 0.6
-    , template-haskell      >= 2.11.1.0 && < 2.17
+    , template-haskell      >= 2.11.1.0 && < 2.18
 
   if !impl(ghc >= 8.2)
     build-depends:

servant-client/servant-client.cabal

@@ -20,7 +20,7 @@ author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 copyright:           2014-2016 Zalora South East Asia Pte Ltd, 2016-2019 Servant Contributors
 build-type:          Simple
-tested-with: GHC ==8.0.2 || ==8.2.2 || ==8.4.4 || ==8.6.5 || ==8.8.4 || ==8.10.2
+tested-with: GHC ==8.0.2 || ==8.2.2 || ==8.4.4 || ==8.6.5 || ==8.8.4 || ==8.10.2 || ==9.0.1
 
 extra-source-files:
   CHANGELOG.md
@@ -40,7 +40,7 @@ library
   -- Bundled with GHC: Lower bound to not force re-installs
   -- text and mtl are bundled starting with GHC-8.4
   build-depends:
-      base                  >= 4.9      && < 4.15
+      base                  >= 4.9      && < 4.16
     , bytestring            >= 0.10.8.1 && < 0.12
     , containers            >= 0.5.7.1  && < 0.7
     , deepseq               >= 1.4.2.0  && < 1.5

servant-docs/servant-docs.cabal

@@ -19,7 +19,7 @@ author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 copyright:           2014-2016 Zalora South East Asia Pte Ltd, 2016-2019 Servant Contributors
 build-type:          Simple
-tested-with: GHC ==8.0.2 || ==8.2.2 || ==8.4.4 || ==8.6.5 || ==8.8.4 || ==8.10.2
+tested-with: GHC ==8.0.2 || ==8.2.2 || ==8.4.4 || ==8.6.5 || ==8.8.4 || ==8.10.2 || ==9.0.1
 
 extra-source-files:
   CHANGELOG.md
@@ -41,7 +41,7 @@ library
   --
   -- note: mtl lower bound is so low because of GHC-7.8
   build-depends:
-      base       >= 4.9      && < 4.15
+      base       >= 4.9      && < 4.16
     , bytestring >= 0.10.8.1 && < 0.12
     , text       >= 1.2.3.0  && < 1.3
 

servant-foreign/servant-foreign.cabal

@@ -21,7 +21,7 @@ author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 copyright:           2015-2019 Servant Contributors
 build-type:          Simple
-tested-with: GHC ==8.0.2 || ==8.2.2 || ==8.4.4 || ==8.6.5 || ==8.8.4 || ==8.10.2
+tested-with: GHC ==8.0.2 || ==8.2.2 || ==8.4.4 || ==8.6.5 || ==8.8.4 || ==8.10.2 || ==9.0.1
 
 extra-source-files:
   CHANGELOG.md
@@ -41,7 +41,7 @@ library
   --
   -- note: mtl lower bound is so low because of GHC-7.8
   build-depends:
-      base        >= 4.9     && < 4.15
+      base        >= 4.9     && < 4.16
     , text        >= 1.2.3.0 && < 1.3
 
   -- Servant dependencies

servant-http-streams/servant-http-streams.cabal

@@ -20,7 +20,7 @@ author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 copyright:           2019 Servant Contributors
 build-type:          Simple
-tested-with: GHC ==8.0.2 || ==8.2.2 || ==8.4.4 || ==8.6.5 || ==8.8.4 || ==8.10.2
+tested-with: GHC ==8.0.2 || ==8.2.2 || ==8.4.4 || ==8.6.5 || ==8.8.4 || ==8.10.2 || ==9.0.1
 
 extra-source-files:
   CHANGELOG.md
@@ -38,7 +38,7 @@ library
   -- Bundled with GHC: Lower bound to not force re-installs
   -- text and mtl are bundled starting with GHC-8.4
   build-depends:
-      base                  >= 4.9      && < 4.15
+      base                  >= 4.9      && < 4.16
     , bytestring            >= 0.10.8.1 && < 0.12
     , containers            >= 0.5.7.1  && < 0.7
     , deepseq               >= 1.4.2.0  && < 1.5

servant-pipes/example/Main.hs

@@ -64,7 +64,7 @@ server = fast :<|> slow :<|> readme :<|> proxy
 
     readme = liftIO $ do
         putStrLn "/readme"
-        return $ P.withFile "README.md" ReadMode PBS.fromHandle
+        return $ P.withFile "README.md" ReadMode $ \h -> PBS.fromHandle h
 
     proxy c = liftIO $ do
         putStrLn "/proxy"

servant-server/servant-server.cabal

@@ -23,7 +23,7 @@ author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 copyright:           2014-2016 Zalora South East Asia Pte Ltd, 2016-2019 Servant Contributors
 build-type:          Simple
-tested-with: GHC ==8.0.2 || ==8.2.2 || ==8.4.4 || ==8.6.5 || ==8.8.4 || ==8.10.2
+tested-with: GHC ==8.0.2 || ==8.2.2 || ==8.4.4 || ==8.6.5 || ==8.8.4 || ==8.10.2 || ==9.0.1
 
 extra-source-files:
   CHANGELOG.md
@@ -60,7 +60,7 @@ library
   -- Bundled with GHC: Lower bound to not force re-installs
   -- text and mtl are bundled starting with GHC-8.4
   build-depends:
-      base                >= 4.9      && < 4.15
+      base                >= 4.9      && < 4.16
     , bytestring          >= 0.10.8.1 && < 0.12
     , containers          >= 0.5.7.1  && < 0.7
     , mtl                 >= 2.2.2    && < 2.3
@@ -72,7 +72,7 @@ library
   -- strict dependency as we re-export 'servant' things.
   build-depends:
       servant             >= 0.18.2   && < 0.18.3
-    , http-api-data       >= 0.4.1    && < 0.4.3
+    , http-api-data       >= 0.4.1    && < 0.4.4
 
   -- Other dependencies: Lower bound around what is in the latest Stackage LTS.
   -- Here can be exceptions if we really need features from the newer versions.

servant/servant.cabal

@@ -1,6 +1,6 @@
 cabal-version:       >=1.10
 name:                servant
-version:             0.18.2
+version:             0.18.2.1
 
 synopsis:            A family of combinators for defining webservices APIs
 category:            Servant, Web
@@ -20,7 +20,7 @@ maintainer:          haskell-servant-maintainers@googlegroups.com
 copyright:           2014-2016 Zalora South East Asia Pte Ltd, 2016-2019 Servant Contributors
 build-type:          Simple
 
-tested-with: GHC ==8.0.2 || ==8.2.2 || ==8.4.4 || ==8.6.5 || ==8.8.4 || ==8.10.2
+tested-with: GHC ==8.0.2 || ==8.2.2 || ==8.4.4 || ==8.6.5 || ==8.8.4 || ==8.10.2 || ==9.0.1
            , GHCJS == 8.4
 
 extra-source-files:
@@ -78,7 +78,7 @@ library
   --
   -- note: mtl lower bound is so low because of GHC-7.8
   build-depends:
-      base                   >= 4.9      && < 4.15
+      base                   >= 4.9      && < 4.16
     , bytestring             >= 0.10.8.1 && < 0.12
     , mtl                    >= 2.2.2    && < 2.3
     , sop-core               >= 0.4.0.0  && < 0.6
@@ -89,7 +89,7 @@ library
   -- We depend (heavily) on the API of these packages:
   -- i.e. re-export, or allow using without direct dependency
   build-depends:
-      http-api-data          >= 0.4.1    && < 0.4.3
+      http-api-data          >= 0.4.1    && < 0.4.4
     , singleton-bool         >= 0.1.4    && < 0.1.7
 
   -- Other dependencies: Lower bound around what is in the latest Stackage LTS.

servant/src/Servant/API/UVerb/Union.hs

@@ -144,4 +144,4 @@ _testNubbed :: ( ( Nubbed '[Bool, Int, Int] ~ 'False
                  , Nubbed '[Int, Bool] ~ 'True
                  )
                => a) -> a
-_testNubbed = id
+_testNubbed a = a

servant/test/Servant/API/StreamSpec.hs

@@ -90,7 +90,7 @@ runRenderFrames :: (SourceT Identity a -> SourceT Identity LBS.ByteString) -> [a
 runRenderFrames f = fmap mconcat . runExcept . runSourceT . f . source
 
 runUnrenderFrames :: (SourceT Identity b -> SourceT Identity a) -> [b] -> [Either String a]
-runUnrenderFrames f = go . Effect . flip unSourceT return . f . source where
+runUnrenderFrames f = go . Effect . (\x -> unSourceT x return) . f . source where
     go :: StepT Identity a -> [Either String a]
     go Stop        = []
     go (Error err) = [Left err]