Add stylish haskell import grouping rules

Author: carbolymer

.github/workflows/stylish-haskell.yml

@@ -26,22 +26,19 @@ jobs:
       fail-fast: false
 
     env:
-      # Modify this value to "invalidate" the cabal cache.
-      CABAL_CACHE_VERSION: "2023-11-20-3"
-
-      STYLISH_HASKELL_VERSION: "0.14.4.0"
+      STYLISH_HASKELL_VERSION: "0.14.6.0"
 
       STYLISH_HASKELL_PATHS: >
-        cardano-testnet
         cardano-git-rev
         cardano-node
+        cardano-node-capi
         cardano-node-chairman
+        cardano-submit-api
+        cardano-testnet
         cardano-tracer
-        trace-resources
-        cardano-node-capi
         trace-dispatcher
         trace-forward
-        cardano-submit-api
+        trace-resources
 
     steps:
     - name: Download stylish-haskell

.stylish-haskell.yaml

@@ -41,6 +41,18 @@ steps:
 
       space_surround: false
 
+      # Principle 10
+      group_imports: true
+
+      group_rules:
+        - match: ^Cardano.Api\>
+        - match: ^(Cardano|Ouroboros|PlutusCore|PlutusLedgerApi)\>
+        - match: ^Prelude\>
+        - match: ^(Control|Codec|Data|Formatting|GHC|Lens|Network|Numeric|Options|Prettyprinter|System|Text)\>
+        - match: ^(Test.Gen.Cardano.Api)\>
+        - match: ^(Test.Cardano|Test.Gen.Cardano|Testnet)\>
+        - match: ^(Hedgehog|HaskellWorks.Hspec|Test)\>
+
   - language_pragmas:
       style: vertical