Support ghc-8.8.4

- Do not use ImportQualifiedPost so GHC-8.8.4 is supported as well.

Author: qnikst

.github/workflows/haskell.yml

@@ -11,12 +11,19 @@ jobs:
 
     runs-on: ubuntu-latest
 
+    strategy:
+      matrix:
+        cabal: ["3.2"]
+        ghc:
+          - "8.10.2"
+          - "8.8.4"
+
     steps:
     - uses: actions/checkout@v2
     - uses: actions/setup-haskell@v1
       with:
-        ghc-version: '8.10.2'
-        cabal-version: '3.2'
+        ghc-version: ${{ matrics.ghc }}
+        cabal-version: ${{ matrix.cabal }}
 
     - name: Cache
       uses: actions/cache@v1

cheops-logger/cheops-logger.cabal

@@ -52,7 +52,6 @@ library
   exposed-modules:
     Cheops.Logger
   default-extensions:
-    ImportQualifiedPost
     RecordWildCards
     OverloadedStrings
   hs-source-dirs:

co-log-json/co-log-json.cabal

@@ -66,7 +66,6 @@ library
     DerivingStrategies
     FlexibleContexts
     GeneralizedNewtypeDeriving
-    ImportQualifiedPost
     LambdaCase
     OverloadedStrings
     RecordWildCards

co-log-json/src/Colog/Json.hs

@@ -66,8 +66,8 @@ import Colog.Core hiding (Severity)
 import Colog.Json.Internal.Structured
 import Control.Concurrent
 import Control.Monad.IO.Class
-import Data.Sequence qualified as Seq
-import Data.Text qualified as T
+import qualified Data.Sequence as Seq
+import qualified Data.Text as T
 
 -- $logger-env
 --

co-log-json/src/Colog/Json/Action.hs

@@ -10,12 +10,12 @@ import Colog.Core
 import Colog.Json.Internal.Structured
 import Control.Exception
 import Data.Aeson.Encoding as Aeson
-import Data.ByteString.Builder qualified as Builder
+import qualified Data.ByteString.Builder as Builder
 import Data.Coerce
 import Data.Foldable
-import Data.List.NonEmpty qualified as NE
-import Data.Text.Lazy qualified as TL
-import Data.Text.Lazy.Builder qualified as TLB
+import qualified Data.List.NonEmpty as NE
+import qualified Data.Text.Lazy as TL
+import qualified Data.Text.Lazy.Builder as TLB
 import System.IO
 
 -- | Dump logs to the output. On the contrary to the usual co-log functions this one

co-log-json/src/Colog/Json/Internal/Structured.hs

@@ -46,8 +46,8 @@ import Data.Aeson.Encoding as Aeson
 import Data.Sequence
 import Data.String
 import Data.String.Conv
-import Data.Text qualified as T
-import Data.Text.Lazy.Builder qualified as TLB
+import qualified Data.Text as T
+import qualified Data.Text.Lazy.Builder as TLB
 import Foreign.C
 import GHC.Conc
 import GHC.Exts hiding (toList)