check-js-build.yml

on:
    pull_request:
        paths:
        - 'js/**'
        - 'plotly/labextension/**'

jobs:
  check-js-build:
    name: Check JS build artifacts
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
      with:
        persist-credentials: false
    - name: Set up Python
      uses: actions/setup-python@v5
      with:
        python-version: "3.x"
        
    - name: Install Node
      uses: actions/setup-node@v2
      with:
        node-version: '18'

    - name: Copy current files to a temporary directory
      run: |
        cp -R plotly/labextension/ plotly/labextension-tmp/

    - name: Install dependencies
      run: |
        curl -LsSf https://astral.sh/uv/install.sh | sh
        uv venv
        source .venv/bin/activate
        uv pip install jupyter
        cd js
        npm ci
        npm run build
    - name: Check JupyterLab build artifacts
      run: |
        # 1. Hash contents of all static files, sort by content hash
        find plotly/labextension/static -type f -exec sha256sum {} \; | awk '{print $1}' | sort > new_hashes.txt
        find plotly/labextension-tmp/static -type f -exec sha256sum {} \; | awk '{print $1}' | sort > old_hashes.txt

        # 2. Compare the sorted content hashes
        diff old_hashes.txt new_hashes.txt > content_diff.txt
        cat content_diff.txt

        # Remove the "load" line from both package.json files before comparing
        grep -v '"load": "static/' plotly/labextension/package.json > pkg1.json
        grep -v '"load": "static/' plotly/labextension-tmp/package.json > pkg2.json

        # Compare stripped versions
        diff pkg1.json pkg2.json > package_json_diff.txt

        # 5. Final check
        if [ -s content_diff.txt ] || [ -s package_json_diff.txt ]; then
        echo "❌ Build artifacts differ:"
        echo "--- Unexpected diffs ---"
        cat content_diff.txt
        echo "--- Unexpected package.json diffs ---"
        cat package_json_diff.txt
        echo "Please replace the 'plotly/labextension' directory with the artifacts of this CI run."
        exit 1
        else
        echo "✅ Build artifacts match expected output (ignoring known 'load' hash in package.json)."
        fi

    - name: Store the build artifacts from plotly/labextension
      uses: actions/upload-artifact@v4
      if: failure()
      with:
        name: labextension
        path: plotly/labextension