Enable partial fields warning (#179)

- Updates exported type `EventMessage` - so avoid exporting partial
functions.

CHANGELOG.md

@@ -1,6 +1,10 @@
 Changelog
 ==========
 
+## Version 1.7.0 -- Unreleased
+
+* Fix data type `EventMessage` to not export partial fields
+
 ## Version 1.6.0
 
 * HLint fixes - some types were changed to newtype (#173)

Setup.hs

@@ -1,19 +0,0 @@
---
--- MinIO Haskell SDK, (C) 2017 MinIO, Inc.
---
--- Licensed under the Apache License, Version 2.0 (the "License");
--- you may not use this file except in compliance with the License.
--- You may obtain a copy of the License at
---
---     http://www.apache.org/licenses/LICENSE-2.0
---
--- Unless required by applicable law or agreed to in writing, software
--- distributed under the License is distributed on an "AS IS" BASIS,
--- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
--- See the License for the specific language governing permissions and
--- limitations under the License.
---
-
-import Distribution.Simple
-
-main = defaultMain

minio-hs.cabal

@@ -1,4 +1,4 @@
-cabal-version:       2.2
+cabal-version:       2.4
 name:                minio-hs
 version:             1.6.0
 synopsis:            A MinIO Haskell Library for Amazon S3 compatible cloud
@@ -44,9 +44,9 @@ common base-settings
 
   -- Add this when we have time. Fixing partial-fields requires major version
   -- bump at this time.
-  -- if impl(ghc >= 8.4)
-  --   ghc-options:       -Wpartial-fields
-  --                      -Wmissing-export-lists
+  if impl(ghc >= 8.4)
+    ghc-options:       -Wpartial-fields
+  --                     -Wmissing-export-lists
 
   if impl(ghc >= 8.8)
     ghc-options:       -Wmissing-deriving-strategies

src/Network/Minio/Data.hs

@@ -963,13 +963,14 @@ outputJSONFromRecordDelimiter t =
 
 -- | An EventMessage represents each kind of message received from the server.
 data EventMessage
-  = ProgressEventMessage {emProgress :: Progress}
-  | StatsEventMessage {emStats :: Stats}
+  = ProgressEventMessage Progress
+  | StatsEventMessage Stats
   | RequestLevelErrorMessage
-      { emErrorCode :: Text,
-        emErrorMessage :: Text
-      }
-  | RecordPayloadEventMessage {emPayloadBytes :: ByteString}
+      Text
+      -- ^ Error code
+      Text
+      -- ^ Error message
+  | RecordPayloadEventMessage ByteString
   deriving stock (Show, Eq)
 
 data MsgHeaderName