name: CI
on:
  pull_request:
    branches:
      - master
  push:
    branches:
      - master
jobs:
  build:
    strategy:
      matrix:
        os:
          - macos-10.15
          - ubuntu-18.04
          - windows-2019
        ghc:
          - 8.8.4
        cabal:
          - 3.2.0.0
        include:
          - os: ubuntu-18.04
            ghc: 8.6.5
            cabal: 3.2.0.0
          - os: ubuntu-18.04
            ghc: 8.4.4
            cabal: 3.2.0.0
          - os: ubuntu-18.04
            ghc: 8.2.2
            cabal: 3.2.0.0
    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/checkout@v2
      - id: setup-haskell
        uses: actions/setup-haskell@v1
        with:
          ghc-version: ${{ matrix.ghc }}
          cabal-version: ${{ matrix.cabal }}
      - run: cabal freeze
      - run: cat cabal.project.freeze
      - uses: actions/cache@v2
        with:
          path: ${{ steps.setup-haskell.outputs.cabal-store }}
          key: ${{ matrix.os }}-${{ matrix.ghc }}-${{ matrix.cabal }}-${{ hashFiles('cabal.project.freeze') }}
          restore-keys: |
            ${{ matrix.os }}-${{ matrix.ghc }}-${{ matrix.cabal }}-
            ${{ matrix.os }}-${{ matrix.ghc }}-
      - run: cabal test --test-show-details direct
      - run: cabal install --installdir output --install-method copy
      - run: strip output/brittany*
      - uses: actions/upload-artifact@v2
        with:
          path: output/brittany*
          name: brittany-${{ matrix.os }}-ghc-${{ matrix.ghc }}-${{ github.sha }}
      - run: cabal sdist
      - if: matrix.os == 'ubuntu-18.04' && matrix.ghc == '8.8.4'
        uses: actions/upload-artifact@v2
        with:
          path: dist-newstyle/sdist/brittany-*.tar.gz
          name: brittany-${{ github.sha }}.tar.gz
      - run: cabal check