name: CI

# Trigger the workflow on push or pull request, but only for the master branch
on:
  pull_request:
  push:
    branches: [master]

jobs:
  cabal:
    name: ${{ matrix.os }} / ghc ${{ matrix.ghc }}
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest, macOS-latest, windows-latest]
        cabal: ["3.2"]
        ghc:
          - "8.6"
          - "8.8"
          - "8.10"
          - "9.0"
          - "9.2"
          - "9.4"
          - "latest"
        exclude:
          - os: macOS-latest
            ghc: 9.0
          - os: macOS-latest
            ghc: 8.10
          - os: macOS-latest
            ghc: 8.8
          - os: macOS-latest
            ghc: 8.6
          - os: macOS-latest
            ghc: 8.4
          - os: macOS-latest
            ghc: 8.2
          - os: macOS-latest
            ghc: 8.0
          - os: windows-latest
            ghc: 9.0
          - os: windows-latest
            ghc: 8.10
          - os: windows-latest
            ghc: 8.8
          - os: windows-latest
            ghc: 8.6
          - os: windows-latest
            ghc: 8.4
          - os: windows-latest
            ghc: 8.2
          - os: windows-latest
            ghc: 8.0

    steps:
    - uses: actions/checkout@v3
      if: github.event.action == 'opened' || github.event.action == 'synchronize' || github.event.ref == 'refs/heads/master'

    - uses: haskell/actions/setup@v2
      id: setup-haskell-cabal
      name: Setup Haskell
      with:
        ghc-version: ${{ matrix.ghc }}
        cabal-version: ${{ matrix.cabal }}

    - name: Configure
      run: |
        cabal configure --enable-tests --enable-benchmarks --test-show-details=direct

    - name: Freeze
      run: |
        cabal freeze

    - uses: actions/cache@v2
      name: Cache ~/.cabal/store
      with:
        path: ${{ steps.setup-haskell-cabal.outputs.cabal-store }}
        key: ${{ runner.os }}-${{ matrix.ghc }}-${{ hashFiles('cabal.project.freeze') }}

    - name: Install dependencies
      run: |
        cabal build all --only-dependencies

    - name: Build
      run: |
        cabal build all --enable-tests --enable-benchmarks --write-ghc-environment-files=always

    - name: Test
      run: |
        cabal test all

    - name: Test inspect
      if: matrix.ghc == '8.10'
      run: |
        rm cabal.project.freeze
        cabal test .:inspect --flags="enable-inspect"

  stack:
    name: stack / ghc ${{ matrix.ghc }}
    runs-on: ubuntu-latest
    strategy:
      matrix:
        stack: ["latest"]
        ghc: ["9.2"]

    steps:
    - uses: actions/checkout@v2
      if: github.event.action == 'opened' || github.event.action == 'synchronize' || github.event.ref == 'refs/heads/master'

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

    - uses: actions/cache@v2
      name: Cache ~/.stack
      with:
        path: ~/.stack
        key: ${{ runner.os }}-${{ matrix.ghc }}-stack

    - name: Install dependencies
      run: |
        stack build --system-ghc --test --bench --no-run-tests --no-run-benchmarks --only-dependencies

    - name: Build
      run: |
        stack build --system-ghc --test --bench --no-run-tests --no-run-benchmarks

    - name: Test
      run: |
        stack test --system-ghc