gtfs-scorecard/.github/workflows/tiles.yml at main · ghzhost/gtfs-scorecard · GitHub

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name: National route tiles

# Rebuild the national all-routes PMTiles archive (web/tiles/national-routes.pmtiles).
#
# tippecanoe is NOT in the daily render image, so this is deliberately a manual,
# on-demand workflow: it never runs on the daily cron and so cannot break the
# daily Pages deploy. Trigger it from the Actions tab after the per-agency route
# geometry has changed enough to be worth re-tiling. See docs/decisions/0023.

on:
  workflow_dispatch:
    inputs:
      commit:
        description: "Commit the rebuilt archive back to the branch"
        type: boolean
        default: true

permissions:
  contents: write

jobs:
  build-tiles:
    runs-on: ubuntu-latest
    steps:
      # zizmor(artipacked): this checkout's persisted credential is what the
      # later `git push` (committing the rebuilt PMTiles archive) uses.
      # Needs to stay persisted.
      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1

      - name: Build tippecanoe from a pinned source tag
        run: |
          set -euo pipefail
          git clone --depth 1 --branch 2.78.0 https://github.com/felt/tippecanoe.git /tmp/tippecanoe
          make -C /tmp/tippecanoe -j2
          sudo make -C /tmp/tippecanoe install
          tippecanoe --version

      - uses: astral-sh/setup-uv@eb1897b8dc4b5d5bfe39a428a8f2304605e0983c # v7.0.0
        with:
          python-version: "3.12"

      - name: Install the pipeline
        working-directory: pipeline
        run: uv sync --locked

      - name: Aggregate routes and build the PMTiles archive
        working-directory: pipeline
        run: uv run python scripts/build_national_pmtiles.py

      - name: Report archive size
        run: |
          ls -lh web/tiles/national-routes.pmtiles
          SIZE=$(stat -c%s web/tiles/national-routes.pmtiles)
          echo "Archive is $SIZE bytes. Threshold for committing to web/ is 25 MB (ADR 0023)."
          if [ "$SIZE" -gt 26214400 ]; then
            echo "::warning title=tiles too large::Archive exceeds 25 MB; move it to S3+CloudFront per ADR 0023 instead of committing."
          fi

      - name: Upload archive as a workflow artifact
        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
        with:
          name: national-routes-pmtiles
          path: web/tiles/national-routes.pmtiles

      - name: Commit the rebuilt archive
        if: ${{ inputs.commit }}
        run: |
          set -euo pipefail
          if git diff --quiet -- web/tiles/national-routes.pmtiles; then
            echo "Archive unchanged; nothing to commit."
            exit 0
          fi
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add web/tiles/national-routes.pmtiles
          git commit -m "chore(tiles): rebuild national-routes PMTiles archive"
          git push