workflow.yaml

name: Continuous integration
on:
  - push
  - pull_request

jobs:
  build:
    name: Build - Windows
    runs-on: windows-latest
    steps:
      - name: Install dependencies
        run: |
          choco install -y haskell-stack
          choco install -y r --version 4.0.0
      - uses: actions/checkout@v4
      - name: Get Stack snapshot install directory
        id: stack-snapshot
        # NOTE: `stack path` must run at least once prior to caching to ensure the directory
        # exists and is populated.
        run: |
          stack path --snapshot-install-root
          "dir=$(stack path --snapshot-install-root)" | Out-File -FilePath $env:GITHUB_OUTPUT -Append
      - uses: actions/cache@v3
        with:
          path: ${{ steps.stack-snapshot.outputs.dir }}
          key: ${{ runner.os }}-stack-${{ hashFiles('**/*.cabal') }}
          restore-keys: ${{ runner.os }}-stack-
      - name: Build
        run: |
          stack build inline-r H `
            --extra-lib-dirs="C:/Program files/R/R-4.0.0/bin/x64" `
            --extra-include-dirs="C:/Program files/R/R-4.0.0/include"
  test:
    name: Build & Test - ${{ matrix.os }} - ${{ matrix.stack_yaml }}
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, macos-latest]
        stack_yaml: [stack.yaml, stack-lts-18.yaml, stack-lts-19.yaml]
    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/checkout@v4
      - uses: cachix/install-nix-action@v24
        with:
          nix_path: nixpkgs=./nixpkgs.nix
      - name: Install Stack
        run: |
          nix-env -f. -iA nixpkgs.stack
      - name: Get Stack snapshot install directory
        id: stack-snapshot
        # NOTE: `stack path` must run at least once prior to caching to ensure the directory
        # exists and is populated.
        # NOTE: The renaming of the stack.yaml file is a workaround for
        # https://github.com/commercialhaskell/stack/issues/5028.
        run: |
          [ ${{ matrix.stack_yaml }} = stack.yaml ] || mv ${{ matrix.stack_yaml }} stack.yaml
          stack --nix path --snapshot-install-root
          echo "dir=$(stack --nix path --snapshot-install-root)" > "${GITHUB_OUTPUT}"
      - uses: actions/cache@v3
        with:
          path: ${{ steps.stack-snapshot.outputs.dir }}
          key: ${{ runner.os }}-stack-${{ hashFiles('**/*.cabal') }}
          restore-keys: ${{ runner.os }}-stack-
      - name: Build
        run: |
          stack --nix build
      - name: Test
        if: ${{ runner.os == 'Linux' }}
        run: |
          stack --nix test
      - name: Test IHaskell jupyter notebook example
        if: ${{ runner.os == 'Linux' }}
        run: |
          stack --nix install
          export PATH=~/.local/bin:$PATH
          stack --nix exec -- ihaskell install
          stack --nix exec -- jupyter nbconvert --to notebook --execute --inplace ./IHaskell/examples/tutorial-ihaskell-inline-r.ipynb