image: emscripten/emsdk:3.1.42

        key: 3.1.42-${{ runner.os }}

name: Preview build

on:

  workflow_call:

    secrets:

      PREVIEW_CLOUDFLARE_API_TOKEN:

        description: API token to upload a preview to Cloudflare Pages

        required: true

      PREVIEW_CLOUDFLARE_ACCOUNT_ID:

        description: Account ID to upload a preview to Cloudflare Pages

        required: true

concurrency:

  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}

  cancel-in-progress: true

jobs:

  preview:

    name: Build preview

    environment:

      name: preview

      url: https://preview.openttd.org/pr${{ github.event.pull_request.number }}/

    runs-on: ubuntu-latest

    container:

      # If you change this version, change the number in the cache step too.

      image: emscripten/emsdk:3.1.42

    steps:

    - name: Checkout

      uses: actions/checkout@v3

      with:

        ref: ${{ github.event.pull_request.head.sha }}

    - name: Name branch

      run: |

        git config --global --add safe.directory ${GITHUB_WORKSPACE}

        git checkout -b pr${{ github.event.pull_request.number }}

    - name: Setup cache

      uses: actions/cache@v3

      with:

        path: /emsdk/upstream/emscripten/cache

        key: 3.1.42-${{ runner.os }}

    - name: Patch Emscripten to support LZMA and nlohmann_json

      run: |

        cd /emsdk/upstream/emscripten

        patch -p1 < ${GITHUB_WORKSPACE}/os/emscripten/emsdk-liblzma.patch

        patch -p1 < ${GITHUB_WORKSPACE}/os/emscripten/emsdk-nlohmann-json.patch

    - name: Build (host tools)

      run: |

        mkdir build-host

        cd build-host

        echo "::group::CMake"

        cmake .. -DOPTION_TOOLS_ONLY=ON

        echo "::endgroup::"

        echo "::group::Build"

        echo "Running on $(nproc) cores"

        make -j$(nproc) tools

        echo "::endgroup::"

    - name: Install GCC problem matcher

      uses: ammaraskar/gcc-problem-matcher@master

    - name: Build

      run: |

        mkdir build

        cd build

        echo "::group::CMake"

        emcmake cmake .. \

          -DHOST_BINARY_DIR=../build-host \

          -DCMAKE_BUILD_TYPE=Release \

          # EOF

        echo "::endgroup::"

        echo "::group::Build"

        echo "Running on $(nproc) cores"

        cmake --build . -j $(nproc) --target openttd

        echo "::endgroup::"

    - name: Prepare preview

      run: |

        mkdir public

        cp build/openttd.data public/

        cp build/openttd.html public/

        cp build/openttd.js public/

        cp build/openttd.wasm public/

        # Ensure we use the latest version of npm; the one we get with current

        # emscripten doesn't allow running "npx wrangler" as root.

        npm install -g npm

    - name: Publish preview

      uses: cloudflare/pages-action@v1

      with:

        apiToken: ${{ secrets.PREVIEW_CLOUDFLARE_API_TOKEN }}

        accountId: ${{ secrets.PREVIEW_CLOUDFLARE_ACCOUNT_ID }}

        projectName: ${{ vars.PREVIEW_CLOUDFLARE_PROJECT_NAME }}

        directory: public

        branch: pr${{ github.event.pull_request.number }}

name: Preview

on:

  pull_request_target:

    types:

    - labeled

    - synchronize

    branches:

    - master

jobs:

  preview:

    if: ${{ (github.event.action == 'labeled' && github.event.label.name == 'preview') || (github.event.action != 'labeled' && contains(github.event.pull_request.labels.*.name, 'preview')) }}

    name: Preview

    uses: ./.github/workflows/preview-build.yml

    secrets: inherit

FROM emscripten/emsdk:3.1.42