Modernized Haskell CI toolchain

Author: jchia

.github/workflows/haskell-ci.yml

@@ -12,6 +12,15 @@
 #
 # REGENDATA ("0.19.20260624",["github","--distribution","jammy","direct-sqlite.cabal"])
 #
+# Manually updated to:
+# - use Ubuntu 26.04 (Resolute)
+# - use GHCup 0.2.6.2
+# - use cabal-install 3.16.1.0
+# - use unprefixed Cabal commands without 'v2-' prefix
+# - exclude libtinfo5, which is unavailable on Resolute
+# - locate GHC tools via the GHCup installation directory
+# - configure hsc2hs to use the BFD linker, since Gold is unavailable on Resolute
+#
 name: Haskell-CI
 on:
   - push
@@ -21,11 +30,11 @@ on:
 jobs:
   linux:
     name: Haskell-CI - Linux - ${{ matrix.compiler }}
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     timeout-minutes:
       60
     container:
-      image: buildpack-deps:noble
+      image: buildpack-deps:resolute
     continue-on-error: ${{ matrix.allow-failure }}
     strategy:
       matrix:
@@ -84,19 +93,20 @@ jobs:
       - name: Install GHCup
         run: |
           mkdir -p "$HOME/.ghcup/bin"
-          curl -sL https://downloads.haskell.org/ghcup/0.1.50.1/x86_64-linux-ghcup-0.1.50.1 > "$HOME/.ghcup/bin/ghcup"
+          curl -sL https://downloads.haskell.org/ghcup/0.2.6.2/x86_64-linux-ghcup-0.2.6.2 > "$HOME/.ghcup/bin/ghcup"
           chmod a+x "$HOME/.ghcup/bin/ghcup"
       - name: Install cabal-install
         run: |
-          "$HOME/.ghcup/bin/ghcup" install cabal 3.16.0.0 || (cat "$HOME"/.ghcup/logs/*.* && false)
-          echo "CABAL=$HOME/.ghcup/bin/cabal-3.16.0.0 -vnormal+nowrap" >> "$GITHUB_ENV"
+          "$HOME/.ghcup/bin/ghcup" install cabal 3.16.1.0 || (cat "$HOME"/.ghcup/logs/*.* && false)
+          echo "CABAL=$HOME/.ghcup/bin/cabal-3.16.1.0 -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$#haddock#')
+          HCDIR=$("$HOME/.ghcup/bin/ghcup" whereis --directory ghc "$HCVER")
+          HC="${HCDIR%/}/ghc"
+          HCPKG="${HCDIR%/}/ghc-pkg"
+          HADDOCK="${HCDIR%/}/haddock"
           echo "HC=$HC" >> "$GITHUB_ENV"
           echo "HCPKG=$HCPKG" >> "$GITHUB_ENV"
           echo "HADDOCK=$HADDOCK" >> "$GITHUB_ENV"
@@ -145,6 +155,7 @@ jobs:
           cat >> $CABAL_CONFIG <<EOF
           program-default-options
             ghc-options: $GHCJOBS +RTS -M3G -RTS
+            hsc2hs-options: --lflag=-fuse-ld=bfd
           EOF
           cat $CABAL_CONFIG
       - name: versions
@@ -154,7 +165,7 @@ jobs:
           $CABAL --version || true
       - name: update cabal index
         run: |
-          $CABAL v2-update -v
+          $CABAL update -v
       - name: install cabal-plan
         run: |
           mkdir -p $HOME/.cabal/bin
@@ -202,7 +213,7 @@ jobs:
           cat cabal.project.local
       - name: dump install plan
         run: |
-          $CABAL v2-build $ARG_COMPILER $ARG_TESTS $ARG_BENCH --dry-run all
+          $CABAL build $ARG_COMPILER $ARG_TESTS $ARG_BENCH --dry-run all
           cabal-plan
       - name: restore cache
         uses: actions/cache/restore@v6
@@ -212,28 +223,28 @@ jobs:
           restore-keys: ${{ runner.os }}-${{ matrix.compiler }}-
       - name: install dependencies
         run: |
-          $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks --dependencies-only -j2 all
-          $CABAL v2-build $ARG_COMPILER $ARG_TESTS $ARG_BENCH --dependencies-only -j2 all
+          $CABAL build $ARG_COMPILER --disable-tests --disable-benchmarks --dependencies-only -j2 all
+          $CABAL build $ARG_COMPILER $ARG_TESTS $ARG_BENCH --dependencies-only -j2 all
       - name: build w/o tests
         run: |
-          $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks all
+          $CABAL build $ARG_COMPILER --disable-tests --disable-benchmarks all
       - name: build
         run: |
-          $CABAL v2-build $ARG_COMPILER $ARG_TESTS $ARG_BENCH all --write-ghc-environment-files=always
+          $CABAL build $ARG_COMPILER $ARG_TESTS $ARG_BENCH all --write-ghc-environment-files=always
       - name: tests
         run: |
-          $CABAL v2-test $ARG_COMPILER $ARG_TESTS $ARG_BENCH all --test-show-details=direct
+          $CABAL test $ARG_COMPILER $ARG_TESTS $ARG_BENCH all --test-show-details=direct
       - name: cabal check
         run: |
           cd ${PKGDIR_direct_sqlite} || false
           ${CABAL} -vnormal check
       - name: haddock
         run: |
-          $CABAL v2-haddock --disable-documentation --haddock-all $ARG_COMPILER --with-haddock $HADDOCK $ARG_TESTS $ARG_BENCH all
+          $CABAL haddock --disable-documentation --haddock-all $ARG_COMPILER --with-haddock $HADDOCK $ARG_TESTS $ARG_BENCH all
       - name: unconstrained build
         run: |
           rm -f cabal.project.local
-          $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks all
+          $CABAL build $ARG_COMPILER --disable-tests --disable-benchmarks all
       - name: save cache
         if: always()
         uses: actions/cache/save@v6