stack.yml

name: Build with Stack
on:
  push:
    branches:
      - master
  pull_request:
    branches:
      - master

jobs:
  check:
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os:      [ubuntu-latest]
        ghc-ver: [9.8.1, 9.6.4]
          # Snapshots for 9.4.8, 9.2.8, 9.0.2, 8.10.7 do not have a recent enough base-compat; 0.13 is needed.
          # On ubuntu-22.04 the old versions 8.8.4, 8.6.5, 8.4.4, 8.2.2 fail due to HsOpenSSL linking errors.
          # They used to work under ubuntu-20.04, but it is not worth the trouble maintaining them.
          # Apparently, HsOpenSSL-0.11.6 and older are too old for ubuntu-22.04.
        include:
          - os: macos-latest
            ghc-ver: 9.8.1
          - os: windows-latest
            ghc-ver: 9.8.1
    env:
      ARGS: "--stack-yaml=stack-${{ matrix.ghc-ver }}.yaml --no-terminal --system-ghc"

    # Needed for Windows to make piping (... >> ...) and evaluation ( $(...) ) work.
    defaults:
      run:
        shell: bash
    steps:
    - uses: actions/checkout@v4

    - uses: haskell-actions/setup@v2
      id: haskell-setup
      with:
        ghc-version: ${{ matrix.ghc-ver }}
        enable-stack: true

    - name: Install the brotli library (Windows)
      if: ${{ runner.os == 'Windows' }}
        # Andreas Abel, 2022-02-15:
        # Stack is packing an old version of MSYS2.
        # To work around certification problems, we need to update msys2-keyring.
      run: |
        stack exec ${{ env.ARGS }} -- pacman --noconfirm -Sy msys2-keyring
        stack exec ${{ env.ARGS }} -- pacman --noconfirm -S mingw-w64-x86_64-pkgconf
        stack exec ${{ env.ARGS }} -- pacman --noconfirm -S mingw-w64-x86_64-brotli
        stack exec ${{ env.ARGS }} -- pacman --noconfirm -S mingw-w64-x86_64-openssl

    - name: Install the brotli library (Ubuntu)
      if: ${{ runner.os == 'Linux' }}
      run: |
        sudo apt-get update
        sudo apt-get install libbrotli-dev -qq

    - name: Set environment variables based on Haskell setup
      run: |
        STACK_VER=$(stack --numeric-version)
        echo "STACK_VER=${STACK_VER}" >> "${GITHUB_ENV}"

    - name: Cache dependencies (restore)
      uses: actions/cache/restore@v4
      id: cache
      with:
        path: ${{ steps.haskell-setup.outputs.stack-root }}
        # Use a unique primary key (always save new cache); works if caches aren't to big or too many...
        key:          ${{ runner.os }}-stack-${{ env.STACK_VER }}-ghc-${{ matrix.ghc-ver }}-commit-${{ github.sha }}
        restore-keys: ${{ runner.os }}-stack-${{ env.STACK_VER }}-ghc-${{ matrix.ghc-ver }}-

    - name: Install dependencies
      # if: ${{ steps.cache.outputs.cache-hit != 'true' }}
      run: |
        stack build ${{ env.ARGS }} --test --only-dependencies

    - name: Build hackage-cli
      run: |
        stack build ${{ env.ARGS }}

    - name: Test hackage-cli
      run: |
        stack test ${{ env.ARGS }}

    - name: Cache dependencies (save)
      uses: actions/cache/save@v4
      if: always()
      # # Will fail if we already have a cache with this key (in this case, cache-hit is true).
      # if: ${{ steps.cache.outputs.cache-hit != 'true' }}
      with:
        path: ${{ steps.haskell-setup.outputs.stack-root }}
        key:  ${{ steps.cache.outputs.cache-primary-key }}