build.yml

name: build

on:
  push:
    branches: [main]
  pull_request:

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: "20"
      - name: Install dependencies
        run: npm ci
      - name: Build & validate dataset
        run: node scripts/build.js
      - name: Generate docs
        run: node scripts/gen-docs.js
      - name: Fail if generated files are stale
        run: |
          if [ -n "$(git status --porcelain data/ docs/cameras.json docs/glossary.md)" ]; then
            echo "::error::Generated files are out of date. Run 'npm run build' and commit the result."
            git status --porcelain data/ docs/cameras.json docs/glossary.md
            exit 1
          fi

  pages:
    runs-on: ubuntu-latest
    needs: build
    if: github.ref == 'refs/heads/main' && github.event_name == 'push'
    permissions:
      contents: read
      pages: write
      id-token: write
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: "20"
      - name: Install dependencies
        run: npm ci
      - name: Build dataset
        run: node scripts/build.js
      - name: Copy data into docs for Pages
        run: cp data/cameras.json docs/cameras.json
      - name: Upload Pages artifact
        uses: actions/upload-pages-artifact@v3
        with:
          path: docs/
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4