stack.yml

name: Stack build

on:
  push:
    branches: [master]
  pull_request:
    branches: [master]

jobs:
  build:
    name: Stack ${{ matrix.ghc }} ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os:  [ubuntu-latest]
        ghc: ['9.8', '9.6', '9.4', '9.2', '9.0', '8.10', '8.8', '8.6', '8.4']
        include:
          - os: macos-latest
            ghc: '9.8'
          - os: windows-latest
            ghc: '9.8'

    steps:
    - uses: actions/checkout@v4

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

    - name: Restore cache
      uses: actions/cache/restore@v4
      id: cache
      env:
        key: ${{ runner.os }}-stack-${{ steps.setup.outputs.stack-version }}-ghc-${{ steps.setup.outputs.ghc-version }}
      with:
        key: ${{ env.key }}-commit-${{ github.sha }}
        restore-keys: ${{ env.key }}-
        path: |
          ${{ steps.setup.outputs.stack-root }}
          .stack-work

    - name: Build dependencies
      run:  stack build --stack-yaml=stack-${{ matrix.ghc }}.yaml --system-ghc --only-dependencies

    - name: Build
      run:  stack build --stack-yaml=stack-${{ matrix.ghc }}.yaml --system-ghc

    - name: Build tests
      run:  stack test --stack-yaml=stack-${{ matrix.ghc }}.yaml --system-ghc --no-run-tests

    - name: Run tests
      run:  stack test --stack-yaml=stack-${{ matrix.ghc }}.yaml --system-ghc

    - name: Save cache
      uses: actions/cache/save@v4
      if: always()
      with:
        key: ${{ steps.cache.outputs.cache-primary-key }}
        path: |
          ${{ steps.setup.outputs.stack-root }}
          .stack-work