haskell.yml

name: Haskell CI

on:
  push:
    branches:
      - '*'
  pull_request:
    branches: [ "master" ]

permissions:
  contents: read

jobs:
  fourmolu:

    runs-on: ubuntu-latest
  
    steps:
      - uses: actions/checkout@v3
      - uses: haskell-actions/run-fourmolu@v9
        with:
          version: "0.14.0.0"
  build:
    name: GHC ${{ matrix.ghc-version }} on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os: [windows-latest, macos-latest, ubuntu-latest]
        ghc-version: ['9.6', '9.4', '9.2', '9.0']

    steps:
      - uses: actions/checkout@v3

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

      - name: Installed minor versions of GHC, Cabal, and Stack
        shell: bash
        run: |
          GHC_VERSION=$(ghc --numeric-version)
          CABAL_VERSION=$(cabal --numeric-version)
          STACK_VERSION=$(stack --numeric-version)
          echo "GHC_VERSION=${GHC_VERSION}"     >> "${GITHUB_ENV}"
          echo "CABAL_VERSION=${CABAL_VERSION}" >> "${GITHUB_ENV}"
          echo "STACK_VERSION=${STACK_VERSION}" >> "${GITHUB_ENV}"

      - name: Configure the build
        run: |
          # cabal configure --enable-tests --enable-benchmarks --disable-documentation
          # cabal build --dry-run
          stack build --test --bench --no-haddock --dry-run
        # The last step generates dist-newstyle/cache/plan.json for the cache key.

      - name: Restore .stack-work cache
        uses: actions/cache/restore@v3
        id: cache-restore-stack-work
        with:
          path: .stack-work
          key: ${{ runner.os }}-ghc-${{ env.GHC_VERSION }}-stack-${{ env.STACK_VERSION }}-stack-work-${{ hashFiles('stack.yaml') }}-${{ hashFiles('package.yaml') }}-${{ hashFiles('**/*.hs') }}
          restore-keys: |
            ${{ runner.os }}-ghc-${{ env.GHC_VERSION }}-stack-${{ env.STACK_VERSION }}-stack-work-
      
      - name: Restore ~/.stack cache (Unix)
        uses: actions/cache/restore@v3
        id: cache-restore-stack-global-unix
        if: runner.os == 'Linux' || runner.os == 'macOS'
        with:
          path: ~/.stack
          key: ${{ runner.os }}-ghc-${{ env.GHC_VERSION }}-stack-${{ env.STACK_VERSION }}-stack-global-${{ hashFiles('stack.yaml') }}-${{ hashFiles('package.yaml') }}
          restore-keys: |
            ${{ runner.os }}-ghc-${{ env.GHC_VERSION }}-stack-${{ env.STACK_VERSION }}-stack-global-

      - name: Restore %APPDATA%\stack, %LOCALAPPDATA%\Programs\stack cache (Windows)
        uses: actions/cache/restore@v3
        id: cache-restore-stack-global-windows
        if: runner.os == 'Windows'
        with:
          path: |
            ~\AppData\Roaming\stack
            ~\AppData\Local\Programs\stack    
          key: ${{ runner.os }}-ghc-${{ env.GHC_VERSION }}-stack-${{ env.STACK_VERSION }}-stack-global-${{ hashFiles('stack.yaml') }}-${{ hashFiles('package.yaml') }}
          restore-keys: |
            ${{ runner.os }}-ghc-${{ env.GHC_VERSION }}-stack-${{ env.STACK_VERSION }}-stack-global-

      - name: Build dependencies
        run: stack build --only-dependencies

      - name: Build the package
        run: stack build

      - name: Save .stack-work cache
        uses: actions/cache/save@v3
        id: cache-save-stack-work
        if: steps.cache-restore-stack-work.outputs.cache-hit != 'true'
        with:
          path: .stack-work
          key: ${{ steps.cache-restore-stack-work.outputs.cache-primary-key }}
   
      - name: Save %APPDATA%\stack, %LOCALAPPDATA%\Programs\stack cache (Windows)
        uses: actions/cache/save@v3
        if: runner.os == 'Windows'
            && steps.cache-restore-stack-global-windows.outputs.cache-hit != 'true'
        with:
          path: |
            ~\AppData\Roaming\stack
            ~\AppData\Local\Programs\stack    
          key: ${{ steps.cache-restore-stack-global-windows.outputs.cache-primary-key }}
  
      - name: Save ~/.stack cache (Unix)
        uses: actions/cache/save@v3
        id: cache-save-stack-global
        if: (runner.os == 'Linux' || runner.os == 'macOS') 
            && steps.cache-restore-stack-global-unix.outputs.cache-hit != 'true'
        with:
          path: ~/.stack
          key: ${{ steps.cache-restore-stack-global-unix.outputs.cache-primary-key }}

      - name: Run tests
        run: stack test

      - name: Check cabal file
        run: cabal check

      - name: Build documentation
        run: stack haddock