ci.yml

name: aeson-pretty-ci
on:
  push:
    branches:
      - master
  pull_request:

concurrency:
  group: ${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

jobs:
  ghcs:
    name: GHC ${{ matrix.ghc }} / Aeson latest
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: ["ubuntu-22.04"]
        ghc: ["9.6.2", "9.4.3", "9.2.8", "9.0.2", "8.10.7", "8.8.4", "8.6.5", "8.4.4", "8.2.2"]
      fail-fast: false
    steps:
      - name: Checkout
        uses: actions/checkout@v3

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

      - name: Setup CI
        run: |
          sed -i 's/-Wall/-Wall -Werror/g' aeson-pretty.cabal
          cabal v2-freeze
          mv cabal.project.freeze frozen

      - name: Cache dependencies
        uses: actions/cache@v3
        with:
          path: ${{ steps.setup-haskell.outputs.cabal-store }}
          key: ${{ runner.os }}-ghc-${{ matrix.ghc }}-${{ hashFiles('frozen') }}
          restore-keys: |
            ${{ runner.os }}-ghc-${{ matrix.ghc }}-${{ hashFiles('frozen') }}
            ${{ runner.os }}-ghc-${{ matrix.ghc }}-

      - name: Build
        run: |
          cabal v2-update
          cabal v2-build all --enable-tests

  aesons:
    name: GHC ${{ matrix.ghc }} / Aeson ${{ matrix.aeson }}
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: ["ubuntu-22.04"]
        ghc: ["8.2.2"]
        aeson: ["1.1", "1.2", "1.3", "1.4", "1.5", "2.0", "2.1", "2.2"]
      fail-fast: false
    steps:
      - name: Checkout
        uses: actions/checkout@v3

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

      - name: Setup CI
        run: |
          sed -i 's/-Wall/-Wall -Werror/g' aeson-pretty.cabal
          cabal v2-freeze --constraint="aeson ^>= ${{ matrix.aeson }}"
          mv cabal.project.freeze frozen

      - name: Cache dependencies
        uses: actions/cache@v3
        with:
          path: ${{ steps.setup-haskell.outputs.cabal-store }}
          key: ${{ runner.os }}-aeson-${{ matrix.aeson }}-${{ hashFiles('frozen') }}
          restore-keys: |
            ${{ runner.os }}-aeson-${{ matrix.aeson }}-${{ hashFiles('frozen') }}
            ${{ runner.os }}-aeson-${{ matrix.aeson }}-

      - name: Build
        run: |
          cabal v2-update
          cabal v2-build all --enable-tests --constraint="aeson ^>= ${{ matrix.aeson }}"

  # Mandatory check on GitHub
  all:
    name: All jobs finished
    if: always()
    needs: [
        aesons,
        ghcs
      ]
    runs-on: ubuntu-22.04
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Check dependencies for failures
        run: |
          # Test all dependencies for success/failure
          set -x
          success="${{ contains(needs.*.result, 'success') }}"
          fail="${{ contains(needs.*.result, 'failure') }}"
          set +x

          # Test whether success/fail variables contain sane values
          if [[ "${success}" != "true" && "${success}" != "false" ]]; then exit 1; fi
          if [[ "${fail}"    != "true" && "${fail}"    != "false" ]]; then exit 1; fi

          # We want to fail if one or more dependencies fail. For safety, we introduce
          # a second check: if no dependencies succeeded something weird is going on.
          if [[ "${fail}" == "true" || "${success}" == "false" ]]; then
            echo "One or more dependency failed, or no dependency succeeded."
            exit 1
          fi

      - name: Install dependencies
        run: |
          sudo apt-get update
          sudo apt-get -y install python3-yaml

      - name: Check that the 'all' job depends on all other jobs
        run: |
          .github/scripts/all_check.py