haskell-ci-0.12, update CONTRIBUTING

Author: phadej

.github/workflows/haskell-ci.yml

@@ -8,9 +8,9 @@
 #
 # For more information, see https://github.com/haskell-CI/haskell-ci
 #
-# version: 0.11.20210222
+# version: 0.12
 #
-# REGENDATA ("0.11.20210222",["github","cabal.project"])
+# REGENDATA ("0.12",["github","cabal.project"])
 #
 name: Haskell-CI
 on:
@@ -22,39 +22,39 @@ on:
       - master
 jobs:
   linux:
-    name: Haskell-CI - Linux - GHC ${{ matrix.ghc }}
+    name: Haskell-CI - Linux - ${{ matrix.compiler }}
     runs-on: ubuntu-18.04
     container:
       image: buildpack-deps:bionic
     continue-on-error: ${{ matrix.allow-failure }}
     strategy:
       matrix:
         include:
-          - ghc: 9.0.1
+          - compiler: ghc-9.0.1
             allow-failure: false
-          - ghc: 8.10.4
+          - compiler: ghc-8.10.4
             allow-failure: false
-          - ghc: 8.8.4
+          - compiler: ghc-8.8.4
             allow-failure: false
-          - ghc: 8.6.5
+          - compiler: ghc-8.6.5
             allow-failure: false
-          - ghc: 8.4.4
+          - compiler: ghc-8.4.4
             allow-failure: false
-          - ghc: 8.2.2
+          - compiler: ghc-8.2.2
             allow-failure: false
-          - ghc: 8.0.2
+          - compiler: ghc-8.0.2
             allow-failure: false
-          - ghc: 7.10.3
+          - compiler: ghc-7.10.3
             allow-failure: false
-          - ghc: 7.8.4
+          - compiler: ghc-7.8.4
             allow-failure: false
-          - ghc: 7.6.3
+          - compiler: ghc-7.6.3
             allow-failure: false
-          - ghc: 7.4.2
+          - compiler: ghc-7.4.2
             allow-failure: false
-          - ghc: 7.2.2
+          - compiler: ghc-7.2.2
             allow-failure: false
-          - ghc: 7.0.4
+          - compiler: ghc-7.0.4
             allow-failure: false
       fail-fast: false
     steps:
@@ -64,29 +64,31 @@ jobs:
           apt-get install -y --no-install-recommends gnupg ca-certificates dirmngr curl git software-properties-common
           apt-add-repository -y 'ppa:hvr/ghc'
           apt-get update
-          apt-get install -y ghc-$GHC_VERSION cabal-install-3.4
+          apt-get install -y $CC cabal-install-3.4
         env:
-          GHC_VERSION: ${{ matrix.ghc }}
+          CC: ${{ matrix.compiler }}
       - name: Set PATH and environment variables
         run: |
           echo "$HOME/.cabal/bin" >> $GITHUB_PATH
           echo "LANG=C.UTF-8" >> $GITHUB_ENV
           echo "CABAL_DIR=$HOME/.cabal" >> $GITHUB_ENV
           echo "CABAL_CONFIG=$HOME/.cabal/config" >> $GITHUB_ENV
-          HC=/opt/ghc/$GHC_VERSION/bin/ghc
+          HCDIR=$(echo "/opt/$CC" | sed 's/-/\//')
+          HCNAME=ghc
+          HC=$HCDIR/bin/$HCNAME
           echo "HC=$HC" >> $GITHUB_ENV
-          echo "HCPKG=/opt/ghc/$GHC_VERSION/bin/ghc-pkg" >> $GITHUB_ENV
-          echo "HADDOCK=/opt/ghc/$GHC_VERSION/bin/haddock" >> $GITHUB_ENV
+          echo "HCPKG=$HCDIR/bin/$HCNAME-pkg" >> $GITHUB_ENV
+          echo "HADDOCK=$HCDIR/bin/haddock" >> $GITHUB_ENV
           echo "CABAL=/opt/cabal/3.4/bin/cabal -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 >= 70400)) -ne 0 ] ; then echo "ARG_TESTS=--enable-tests" >> $GITHUB_ENV ; else echo "ARG_TESTS=--disable-tests" >> $GITHUB_ENV ; fi
           if [ $((HCNUMVER >= 70400)) -ne 0 ] ; then echo "ARG_BENCH=--enable-benchmarks" >> $GITHUB_ENV ; else echo "ARG_BENCH=--disable-benchmarks" >> $GITHUB_ENV ; fi
           echo "HEADHACKAGE=false" >> $GITHUB_ENV
-          echo "ARG_COMPILER=--ghc --with-compiler=$HC" >> $GITHUB_ENV
+          echo "ARG_COMPILER=--$HCNAME --with-compiler=$HC" >> $GITHUB_ENV
           echo "GHCJSARITH=0" >> $GITHUB_ENV
         env:
-          GHC_VERSION: ${{ matrix.ghc }}
+          CC: ${{ matrix.compiler }}
       - name: env
         run: |
           env
@@ -175,9 +177,9 @@ jobs:
       - name: cache
         uses: actions/cache@v2
         with:
-          key: ${{ runner.os }}-${{ matrix.ghc }}-${{ github.sha }}
+          key: ${{ runner.os }}-${{ matrix.compiler }}-${{ github.sha }}
           path: ~/.cabal/store
-          restore-keys: ${{ runner.os }}-${{ matrix.ghc }}-
+          restore-keys: ${{ runner.os }}-${{ matrix.compiler }}-
       - name: install dependencies
         run: |
           $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks --dependencies-only -j2 all

.stylish-haskell.yaml

@@ -11,6 +11,7 @@ steps:
   - trailing_whitespace: {}
 columns: 80
 language_extensions:
+  - DataKinds
   - EmptyCase
   - ExplicitForAll
   - FlexibleContexts