Drop support of GHC < 8

Bodigrim · Bodigrim · commit fc766cd8774c · 2025-06-09T20:32:35.000+01:00
diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
@@ -8,9 +8,9 @@
 #
 # For more information, see https://github.com/haskell-CI/haskell-ci
 #
-# version: 0.18.1
+# version: 0.19.20250605
 #
-# REGENDATA ("0.18.1",["github","bzlib.cabal"])
+# REGENDATA ("0.19.20250605",["github","bzlib.cabal"])
 #
 name: Haskell-CI
 on:
@@ -19,23 +19,33 @@ on:
 jobs:
   linux:
     name: Haskell-CI - Linux - ${{ matrix.compiler }}
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     timeout-minutes:
       60
     container:
-      image: buildpack-deps:bionic
+      image: buildpack-deps:jammy
     continue-on-error: ${{ matrix.allow-failure }}
     strategy:
       matrix:
         include:
-          - compiler: ghc-9.8.2
+          - compiler: ghc-9.12.2
             compilerKind: ghc
-            compilerVersion: 9.8.2
+            compilerVersion: 9.12.2
             setup-method: ghcup
             allow-failure: false
-          - compiler: ghc-9.6.4
+          - compiler: ghc-9.10.2
             compilerKind: ghc
-            compilerVersion: 9.6.4
+            compilerVersion: 9.10.2
+            setup-method: ghcup
+            allow-failure: false
+          - compiler: ghc-9.8.4
+            compilerKind: ghc
+            compilerVersion: 9.8.4
+            setup-method: ghcup
+            allow-failure: false
+          - compiler: ghc-9.6.7
+            compilerKind: ghc
+            compilerVersion: 9.6.7
             setup-method: ghcup
             allow-failure: false
           - compiler: ghc-9.4.8
@@ -61,79 +71,53 @@ jobs:
           - compiler: ghc-8.8.4
             compilerKind: ghc
             compilerVersion: 8.8.4
-            setup-method: hvr-ppa
+            setup-method: ghcup
             allow-failure: false
           - compiler: ghc-8.6.5
             compilerKind: ghc
             compilerVersion: 8.6.5
-            setup-method: hvr-ppa
+            setup-method: ghcup
             allow-failure: false
           - compiler: ghc-8.4.4
             compilerKind: ghc
             compilerVersion: 8.4.4
-            setup-method: hvr-ppa
+            setup-method: ghcup
             allow-failure: false
           - compiler: ghc-8.2.2
             compilerKind: ghc
             compilerVersion: 8.2.2
-            setup-method: hvr-ppa
+            setup-method: ghcup
             allow-failure: false
           - compiler: ghc-8.0.2
             compilerKind: ghc
             compilerVersion: 8.0.2
-            setup-method: hvr-ppa
-            allow-failure: false
-          - compiler: ghc-7.10.3
-            compilerKind: ghc
-            compilerVersion: 7.10.3
-            setup-method: hvr-ppa
-            allow-failure: false
-          - compiler: ghc-7.8.4
-            compilerKind: ghc
-            compilerVersion: 7.8.4
-            setup-method: hvr-ppa
-            allow-failure: false
-          - compiler: ghc-7.6.3
-            compilerKind: ghc
-            compilerVersion: 7.6.3
-            setup-method: hvr-ppa
-            allow-failure: false
-          - compiler: ghc-7.4.2
-            compilerKind: ghc
-            compilerVersion: 7.4.2
-            setup-method: hvr-ppa
-            allow-failure: false
-          - compiler: ghc-7.2.2
-            compilerKind: ghc
-            compilerVersion: 7.2.2
-            setup-method: hvr-ppa
-            allow-failure: false
-          - compiler: ghc-7.0.4
-            compilerKind: ghc
-            compilerVersion: 7.0.4
-            setup-method: hvr-ppa
+            setup-method: ghcup
             allow-failure: false
       fail-fast: false
     steps:
-      - name: apt
+      - name: apt-get install
         run: |
           apt-get update
-          apt-get install -y --no-install-recommends gnupg ca-certificates dirmngr curl git software-properties-common libtinfo5
-          if [ "${{ matrix.setup-method }}" = ghcup ]; then
-            mkdir -p "$HOME/.ghcup/bin"
-            curl -sL https://downloads.haskell.org/ghcup/0.1.20.0/x86_64-linux-ghcup-0.1.20.0 > "$HOME/.ghcup/bin/ghcup"
-            chmod a+x "$HOME/.ghcup/bin/ghcup"
-            "$HOME/.ghcup/bin/ghcup" install ghc "$HCVER" || (cat "$HOME"/.ghcup/logs/*.* && false)
-            "$HOME/.ghcup/bin/ghcup" install cabal 3.10.2.0 || (cat "$HOME"/.ghcup/logs/*.* && false)
-          else
-            apt-add-repository -y 'ppa:hvr/ghc'
-            apt-get update
-            apt-get install -y "$HCNAME"
-            mkdir -p "$HOME/.ghcup/bin"
-            curl -sL https://downloads.haskell.org/ghcup/0.1.20.0/x86_64-linux-ghcup-0.1.20.0 > "$HOME/.ghcup/bin/ghcup"
-            chmod a+x "$HOME/.ghcup/bin/ghcup"
-            "$HOME/.ghcup/bin/ghcup" install cabal 3.10.2.0 || (cat "$HOME"/.ghcup/logs/*.* && false)
-          fi
+          apt-get install -y --no-install-recommends gnupg ca-certificates dirmngr curl git software-properties-common libtinfo5 libnuma-dev
+      - name: Install GHCup
+        run: |
+          mkdir -p "$HOME/.ghcup/bin"
+          curl -sL https://downloads.haskell.org/ghcup/0.1.50.1/x86_64-linux-ghcup-0.1.50.1 > "$HOME/.ghcup/bin/ghcup"
+          chmod a+x "$HOME/.ghcup/bin/ghcup"
+      - name: Install cabal-install
+        run: |
+          "$HOME/.ghcup/bin/ghcup" install cabal 3.14.2.0 || (cat "$HOME"/.ghcup/logs/*.* && false)
+          echo "CABAL=$HOME/.ghcup/bin/cabal-3.14.2.0 -vnormal+nowrap" >> "$GITHUB_ENV"
+      - name: Install GHC (GHCup)
+        if: matrix.setup-method == 'ghcup'
+        run: |
+          "$HOME/.ghcup/bin/ghcup" install ghc "$HCVER" || (cat "$HOME"/.ghcup/logs/*.* && false)
+          HC=$("$HOME/.ghcup/bin/ghcup" whereis ghc "$HCVER")
+          HCPKG=$(echo "$HC" | sed 's#ghc$#ghc-pkg#')
+          HADDOCK=$(echo "$HC" | sed 's#ghc$#haddock#')
+          echo "HC=$HC" >> "$GITHUB_ENV"
+          echo "HCPKG=$HCPKG" >> "$GITHUB_ENV"
+          echo "HADDOCK=$HADDOCK" >> "$GITHUB_ENV"
         env:
           HCKIND: ${{ matrix.compilerKind }}
           HCNAME: ${{ matrix.compiler }}
@@ -144,30 +128,12 @@ jobs:
           echo "LANG=C.UTF-8" >> "$GITHUB_ENV"
           echo "CABAL_DIR=$HOME/.cabal" >> "$GITHUB_ENV"
           echo "CABAL_CONFIG=$HOME/.cabal/config" >> "$GITHUB_ENV"
-          HCDIR=/opt/$HCKIND/$HCVER
-          if [ "${{ matrix.setup-method }}" = ghcup ]; then
-            HC=$("$HOME/.ghcup/bin/ghcup" whereis ghc "$HCVER")
-            HCPKG=$(echo "$HC" | sed 's#ghc$#ghc-pkg#')
-            HADDOCK=$(echo "$HC" | sed 's#ghc$#haddock#')
-            echo "HC=$HC" >> "$GITHUB_ENV"
-            echo "HCPKG=$HCPKG" >> "$GITHUB_ENV"
-            echo "HADDOCK=$HADDOCK" >> "$GITHUB_ENV"
-            echo "CABAL=$HOME/.ghcup/bin/cabal-3.10.2.0 -vnormal+nowrap" >> "$GITHUB_ENV"
-          else
-            HC=$HCDIR/bin/$HCKIND
-            echo "HC=$HC" >> "$GITHUB_ENV"
-            echo "HCPKG=$HCDIR/bin/$HCKIND-pkg" >> "$GITHUB_ENV"
-            echo "HADDOCK=$HCDIR/bin/haddock" >> "$GITHUB_ENV"
-            echo "CABAL=$HOME/.ghcup/bin/cabal-3.10.2.0 -vnormal+nowrap" >> "$GITHUB_ENV"
-          fi
-
           HCNUMVER=$(${HC} --numeric-version|perl -ne '/^(\d+)\.(\d+)\.(\d+)(\.(\d+))?$/; print(10000 * $1 + 100 * $2 + ($3 == 0 ? $5 != 1 : $3))')
           echo "HCNUMVER=$HCNUMVER" >> "$GITHUB_ENV"
           echo "ARG_TESTS=--enable-tests" >> "$GITHUB_ENV"
           echo "ARG_BENCH=--enable-benchmarks" >> "$GITHUB_ENV"
           echo "HEADHACKAGE=false" >> "$GITHUB_ENV"
           echo "ARG_COMPILER=--$HCKIND --with-compiler=$HC" >> "$GITHUB_ENV"
-          echo "GHCJSARITH=0" >> "$GITHUB_ENV"
         env:
           HCKIND: ${{ matrix.compilerKind }}
           HCNAME: ${{ matrix.compiler }}
@@ -217,7 +183,7 @@ jobs:
           chmod a+x $HOME/.cabal/bin/cabal-plan
           cabal-plan --version
       - name: checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           path: source
       - name: initial cabal.project for sdist
@@ -245,15 +211,15 @@ jobs:
           if [ $((HCNUMVER >= 80200)) -ne 0 ] ; then echo "    ghc-options: -Werror=missing-methods" >> cabal.project ; fi
           cat >> cabal.project <<EOF
           EOF
-          $HCPKG list --simple-output --names-only | perl -ne 'for (split /\s+/) { print "constraints: $_ installed\n" unless /^(bzlib)$/; }' >> cabal.project.local
+          $HCPKG list --simple-output --names-only | perl -ne 'for (split /\s+/) { print "constraints: any.$_ installed\n" unless /^(bzlib)$/; }' >> cabal.project.local
           cat cabal.project
           cat cabal.project.local
       - name: dump install plan
         run: |
           $CABAL v2-build $ARG_COMPILER $ARG_TESTS $ARG_BENCH --dry-run all
           cabal-plan
       - name: restore cache
-        uses: actions/cache/restore@v3
+        uses: actions/cache/restore@v4
         with:
           key: ${{ runner.os }}-${{ matrix.compiler }}-${{ github.sha }}
           path: ~/.cabal/store
@@ -283,8 +249,8 @@ jobs:
           rm -f cabal.project.local
           $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks all
       - name: save cache
-        uses: actions/cache/save@v3
         if: always()
+        uses: actions/cache/save@v4
         with:
           key: ${{ runner.os }}-${{ matrix.compiler }}-${{ github.sha }}
           path: ~/.cabal/store
diff --git a/.github/workflows/other.yml b/.github/workflows/other.yml
@@ -13,14 +13,12 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        os: [windows-latest, macOS-latest]
+        os: [windows-latest, macOS-14]
         ghc: ['8.4', '9.2', 'latest']
         include:
-          - os: macOS-latest
-            ghc: '7.10'
-          - os: macOS-latest
+          - os: macOS-14
             ghc: '8.0'
-          - os: macOS-latest
+          - os: macOS-14
             ghc: '8.2'
     steps:
     - uses: actions/checkout@v4
@@ -47,7 +45,7 @@ jobs:
         cd bzlib-*/
         cabal test
     - name: Haddock
-      if: matrix.ghc != '7.10' && matrix.ghc != '8.0'
+      if: matrix.ghc != '8.0'
       run: |
         cd bzlib-*/
         cabal haddock
diff --git a/Codec/Compression/BZip/Internal.hs b/Codec/Compression/BZip/Internal.hs
@@ -46,11 +46,7 @@ import Control.Monad (when)
 import Control.Exception (Exception, throw, assert)
 import Control.Monad.ST.Lazy hiding (stToIO)
 import Control.Monad.ST.Strict (stToIO)
-#if __GLASGOW_HASKELL__ >= 702
 import qualified Control.Monad.ST.Unsafe as Unsafe (unsafeIOToST)
-#else
-import qualified Control.Monad.ST.Strict as Unsafe (unsafeIOToST)
-#endif
 import qualified Data.ByteString.Lazy as L
 import qualified Data.ByteString.Lazy.Internal as L
 import qualified Data.ByteString as S
diff --git a/Codec/Compression/BZip/Stream.hsc b/Codec/Compression/BZip/Stream.hsc
@@ -62,27 +62,15 @@ import Foreign
          ( Word8, Ptr, nullPtr, plusPtr, peekByteOff, pokeByteOff
          , ForeignPtr, FinalizerPtr, mallocForeignPtrBytes, addForeignPtrFinalizer
          , finalizeForeignPtr, withForeignPtr, touchForeignPtr, minusPtr )
-#if __GLASGOW_HASKELL__ >= 702
 import Foreign.ForeignPtr.Unsafe ( unsafeForeignPtrToPtr )
-#else
-import Foreign ( unsafeForeignPtrToPtr )
-#endif
 import Foreign.C
 import Data.ByteString.Internal (nullForeignPtr)
 import System.IO (hPutStrLn, stderr)
 import Control.Applicative (Applicative(..))
 import Control.Monad (liftM, ap)
 import qualified Control.Monad.Fail as Fail
-#if __GLASGOW_HASKELL__ >= 702
-#if __GLASGOW_HASKELL__ >= 708
 import Control.Monad.ST.Strict
-#else
-import Control.Monad.ST.Strict hiding (unsafeIOToST)
-#endif
 import Control.Monad.ST.Unsafe
-#else
-import Control.Monad.ST.Strict
-#endif
 import Control.Exception (assert)
 
 import Prelude (Int, IO, Bool, String, Functor, Monad(..), Show(..), return, (>>), (>>=), fmap, (.), ($), fromIntegral, error, otherwise, (<=), (&&), (>=), show, (++), (+), (==), (-), (>))
@@ -257,12 +245,8 @@ instance Applicative Stream where
 
 instance Monad Stream where
   (>>=)  = thenZ
---  m >>= f = (m `thenZ` \a -> consistencyCheck `thenZ_` returnZ a) `thenZ` f
   (>>)   = (*>)
   return = pure
-#if !MIN_VERSION_base(4,13,0)
-  fail = Fail.fail
-#endif
 
 instance Fail.MonadFail Stream where
   fail   = (finalise >>) . failZ
diff --git a/bzlib.cabal b/bzlib.cabal
@@ -21,7 +21,7 @@ cabal-version:   2.0
 extra-doc-files: README.md CHANGELOG.md
 extra-source-files: cbits-extra/hs-bzlib.h
 
-tested-with: GHC==9.8.2, GHC==9.6.4, GHC==9.4.8, GHC==9.2.8, GHC==9.0.2, GHC==8.10.7, GHC==8.8.4, GHC==8.6.5, GHC==8.4.4, GHC==8.2.2, GHC==8.0.2, GHC==7.10.3, GHC==7.8.4, GHC==7.6.3, GHC==7.4.2, GHC==7.2.2, GHC==7.0.4
+tested-with: GHC==9.12.2, GHC==9.10.2, GHC==9.8.4, GHC==9.6.7, GHC==9.4.8, GHC==9.2.8, GHC==9.0.2, GHC==8.10.7, GHC==8.8.4, GHC==8.6.5, GHC==8.4.4, GHC==8.2.2, GHC==8.0.2
 
 source-repository head
   type: git
@@ -32,10 +32,8 @@ library
   exposed-modules: Codec.Compression.BZip,
                    Codec.Compression.BZip.Internal
   other-modules:   Codec.Compression.BZip.Stream
-  build-depends:   base >= 3 && < 5,
+  build-depends:   base >= 4.9 && < 5,
                    bytestring >= 0.9 && < 0.13
-  if impl(ghc < 8.0)
-    build-depends: fail < 5
   if os(windows)
     build-depends: base >= 4.11
   includes:        bzlib.h
