re-enabling Cabal-3.12

Author: GuillaumedeVolpiano

.github/workflows/ci.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macOS-latest]
-        ghc: ["9.6.6", "9.8", "9.10"]
+        ghc: ["9.6", "9.8", "9.10"]
 
     steps:
     - uses: actions/checkout@v4

lib/Language/Haskell/Stylish/Config/Cabal.hs

@@ -1,3 +1,4 @@
+{-# LANGUAGE CPP #-}
 --------------------------------------------------------------------------------
 module Language.Haskell.Stylish.Config.Cabal
     ( findLanguageExtensions
@@ -50,11 +51,20 @@ findCabalFile verbose configSearchStrategy = case configSearchStrategy of
     verbose $ "Stylish Haskell will work basing on LANGUAGE pragmas in source files."
     return Nothing
   go searched (p : ps) = do
-    let projectRoot = Just $ Cabal.makeSymbolicPath p
+
+#if MIN_VERSION_Cabal(3,14,0)
+    let projectRoot = Just $ makeSymbolicPath p
     potentialCabalFile <- Cabal.findPackageDesc projectRoot
+#else
+    potentialCabalFile <- Cabal.findPackageDesc p
+#endif
     case potentialCabalFile of
       Right cabalFile -> pure $ Just $
+#if MIN_VERSION_Cabal(3,14,0)
         Cabal.interpretSymbolicPath projectRoot cabalFile
+#else
+        cabalFile
+#endif
       _ -> go (p : searched) ps
 
 

src/Main.hs

@@ -22,6 +22,20 @@ import           Data.Monoid              ((<>))
 --------------------------------------------------------------------------------
 import           Language.Haskell.Stylish
 
+#if MIN_VERSION_GLASGOW_HASKELL(9,9,0,0)
+-- Unique64 patch was present in 9.10 and later
+#define HAVE_UNIQUE64 1
+#elif !MIN_VERSION_GLASGOW_HASKELL(9,9,0,0) && MIN_VERSION_GLASGOW_HASKELL(9,8,4,0)
+-- Unique64 patch was backported to 9.8.4
+#define HAVE_UNIQUE64 1
+#elif !MIN_VERSION_GLASGOW_HASKELL(9,7,0,0) && MIN_VERSION_GLASGOW_HASKELL(9,6,7,0)
+-- Unique64 patch was backported to 9.6.7
+#define HAVE_UNIQUE64 1
+#endif
+
+#if !defined(HAVE_UNIQUE64)
+HsWord64 ghc_unique_counter64 = 0;
+#endif
 
 --------------------------------------------------------------------------------
 data StylishArgs = StylishArgs

stylish-haskell.cabal

@@ -39,7 +39,7 @@ Common depends
     aeson             >= 0.6    && < 2.3,
     base              >= 4.8    && < 5,
     bytestring        >= 0.9    && < 0.13,
-    Cabal             >= 3.14   && < 4.0,
+    Cabal             >= 3.10   && < 4.0,
     containers        >= 0.3    && < 0.9,
     directory         >= 1.2.3  && < 1.4,
     filepath          >= 1.1    && < 1.6,