name: Cabal CI
on:
  pull_request:
    types:
      - opened
      - synchronize
jobs:
  build:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        ghc: ['9.4.4', '9.2.6', '9.0.2', '8.10.7', '8.8.4', '8.6.5', '8.4.4', '8.2.2', '8.0.2']
        cabal: ['latest', 3.2]
      fail-fast: false
    env:
      CONFIG: "--enable-tests --enable-benchmarks"
    steps:
      - uses: actions/checkout@v2
      # https://github.com/haskell/actions/tree/main/setup
      - uses: haskell/actions/setup@v2
        id: setup-haskell-cabal
        with:
          ghc-version: ${{ matrix.ghc }}
          cabal-version: ${{ matrix.cabal }}
      - run: cabal v2-update
      - run: cabal v2-freeze $CONFIG
      - uses: actions/cache@v2
        with:
          path: |
            ${{ steps.setup-haskell-cabal.outputs.cabal-store }}
            dist-newstyle
          key: ${{ runner.os }}-${{ matrix.ghc }}-${{ hashFiles('cabal.project.freeze') }}
          restore-keys: |
            ${{ runner.os }}-${{ matrix.ghc }}-
      - run: cabal v2-build $CONFIG
      - run: cabal v2-test $CONFIG
      - run: cabal v2-haddock $CONFIG
      - run: cabal v2-sdist