stop testing GHC < 8.4 (it's complicated these days)

Author: ulysses4ever

.github/workflows/haskell-ci.yml

@@ -77,16 +77,6 @@ jobs:
             compilerVersion: 8.4.4
             setup-method: ghcup
             allow-failure: false
-          - compiler: ghc-8.2.2
-            compilerKind: ghc
-            compilerVersion: 8.2.2
-            setup-method: ghcup
-            allow-failure: false
-          - compiler: ghc-8.0.2
-            compilerKind: ghc
-            compilerVersion: 8.0.2
-            setup-method: ghcup
-            allow-failure: false
       fail-fast: false
     steps:
       - name: apt
@@ -118,8 +108,8 @@ jobs:
           echo "CABAL=$HOME/.ghcup/bin/cabal-3.10.2.0 -vnormal+nowrap" >> "$GITHUB_ENV"
           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"
-          if [ $((HCNUMVER >= 80400)) -ne 0 ] ; then echo "ARG_TESTS=--enable-tests" >> "$GITHUB_ENV" ; else echo "ARG_TESTS=--disable-tests" >> "$GITHUB_ENV" ; fi
-          if [ $((HCNUMVER >= 80400)) -ne 0 ] ; then echo "ARG_BENCH=--enable-benchmarks" >> "$GITHUB_ENV" ; else echo "ARG_BENCH=--disable-benchmarks" >> "$GITHUB_ENV" ; fi
+          echo "ARG_TESTS=--enable-tests" >> "$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"
@@ -205,8 +195,8 @@ jobs:
           touch cabal.project
           touch cabal.project.local
           echo "packages: ${PKGDIR_rere}" >> cabal.project
-          if [ $((HCNUMVER >= 80200)) -ne 0 ] ; then echo "package rere" >> cabal.project ; fi
-          if [ $((HCNUMVER >= 80200)) -ne 0 ] ; then echo "    ghc-options: -Werror=missing-methods" >> cabal.project ; fi
+          echo "package rere" >> cabal.project
+          echo "    ghc-options: -Werror=missing-methods" >> cabal.project
           cat >> cabal.project <<EOF
           constraints: rere +rere-intersection
           EOF
@@ -235,11 +225,11 @@ jobs:
           $CABAL v2-build $ARG_COMPILER $ARG_TESTS $ARG_BENCH all --write-ghc-environment-files=always
       - name: tests
         run: |
-          if [ $((HCNUMVER >= 80400)) -ne 0 ] ; then $CABAL v2-test $ARG_COMPILER $ARG_TESTS $ARG_BENCH all --test-show-details=direct ; fi
+          $CABAL v2-test $ARG_COMPILER $ARG_TESTS $ARG_BENCH all --test-show-details=direct
       - name: docspec
         run: |
-          if [ $((HCNUMVER >= 80400)) -ne 0 ] ; then $CABAL v2-build $ARG_COMPILER $ARG_TESTS $ARG_BENCH all ; fi
-          if [ $((HCNUMVER >= 80400)) -ne 0 ] ; then cabal-docspec $ARG_COMPILER ; fi
+          $CABAL v2-build $ARG_COMPILER $ARG_TESTS $ARG_BENCH all
+          cabal-docspec $ARG_COMPILER
       - name: cabal check
         run: |
           cd ${PKGDIR_rere} || false
@@ -262,10 +252,10 @@ jobs:
           $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks --constraint='rere +rere-intersection' all
       - name: constraint set no-cfg
         run: |
-          if [ $((HCNUMVER >= 80400)) -ne 0 ] ; then $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks --constraint='rere -rere-cfg' all --dry-run ; fi
-          if [ $((HCNUMVER >= 80400)) -ne 0 ] ; then cabal-plan topo | sort ; fi
-          if [ $((HCNUMVER >= 80400)) -ne 0 ] ; then $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks --constraint='rere -rere-cfg' --dependencies-only -j2 all ; fi
-          if [ $((HCNUMVER >= 80400)) -ne 0 ] ; then $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks --constraint='rere -rere-cfg' all ; fi
+          $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks --constraint='rere -rere-cfg' all --dry-run
+          cabal-plan topo | sort
+          $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks --constraint='rere -rere-cfg' --dependencies-only -j2 all
+          $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks --constraint='rere -rere-cfg' all
       - name: save cache
         uses: actions/cache/save@v4
         if: always()

rere.cabal

@@ -19,15 +19,7 @@ extra-source-files:
   rere.sty
 
 tested-with:
-  GHC ==7.0.4
-   || ==7.2.2
-   || ==7.4.2
-   || ==7.6.3
-   || ==7.8.4
-   || ==7.10.3
-   || ==8.0.2
-   || ==8.2.2
-   || ==8.4.4
+  GHC ==8.4.4
    || ==8.6.5
    || ==8.8.4
    || ==8.10.7