ubuntuCI.yml

name: ubuntu-ci
on: [push, pull_request]

jobs:
  build:
    name: Build on ubuntu-18.04:ghc-${{ matrix.ghc }}:cabal-${{ matrix.cabal }}
    runs-on: ubuntu-18.04
    strategy:
      matrix:
        ghc: ['8.6', '8.8', '8.10']
        cabal: ['2.4', '3.2']
        exclude:
          # GHC 8.8+ only works with cabal v3+
          - ghc: 8.8
            cabal: 2.4
          - ghc: 8.10
            cabal: 2.4
    steps:
      - uses: actions/checkout@v2
        with:
          submodules: 'recursive'

      - uses: actions/cache@v2
        with:
          path: |
            ~/.cabal/packages
            ~/.cabal/store
            dist-newstyle
          key: ${{ runner.os }}-${{ matrix.ghc }}-${{ matrix.cabal }}-v1-${{ hashFiles('**/*.cabal') }}-${{ hashFiles('**/cabal.project') }}
          restore-keys: |
            ${{ runner.os }}-${{ matrix.ghc }}-${{ matrix.cabal }}-v1-

      - name: Setup Haskell
        uses: haskell/actions/setup@v1
        with:
          ghc-version: ${{ matrix.ghc }}
          cabal-version: ${{ matrix.cabal }}

      - run: cabal v2-update

      - name: sdist
        run: |
          mkdir -p $HOME/sdist
          cabal v2-sdist --output-dir $HOME/sdist

      - name: unpack
        run: |
          rm -rf $GITHUB_WORKSPACE/*
          find $HOME/sdist -maxdepth 1 -type f -name '*.tar.gz' -exec tar -C $GITHUB_WORKSPACE -xzvf {} --strip 1 \;

      - name: build
        run: cabal v2-build --upgrade-dependencies --enable-tests --enable-benchmarks

      - if: "matrix.cabal < '3'"
        run: cabal v2-test
      - if: "matrix.cabal >= '3'"
        run: cabal v2-test --test-show-details=direct

      - run: cabal check
      - run: cabal v2-haddock