deploy-github-pages.yml

on:
  workflow_dispatch:
  push:
    branches: main
  schedule:
    # Every day at 8am
    - cron: "0 8 * * *"

name: Deploy to Github Pages

concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref }}
  cancel-in-progress: true

jobs:
  build-deploy:
    runs-on: ubuntu-latest
    timeout-minutes: 30
    permissions:
      contents: write
    steps:
      - name: Check out repository
        uses: actions/checkout@v6

      - name: Set up R
        uses: r-lib/actions/setup-r@v2
        with:
          use-public-rspm: true

      - name: Install pak
        run: install.packages("pak")
        shell: Rscript {0}

      # Detect every package the site (including the synced modules) depends on,
      # instead of hardcoding a list, so newly added modules using new packages
      # work without editing this workflow. pak installs the system requirements
      # (e.g. those mapgl needs: gdal/geos/proj/...) automatically on this runner.
      - name: Install R dependencies
        run: |
          deps <- pak::scan_deps(".")
          pkgs <- setdiff(unique(deps$package), "R")
          pak::pak(pkgs)
        shell: Rscript {0}

      - name: Set up Quarto
        uses: quarto-dev/quarto-actions/setup@v2

      - name: Render and Publish
        uses: quarto-dev/quarto-actions/publish@v2
        with:
          target: gh-pages
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      # Modules use `freeze: auto`, so the render above re-executes only the
      # modules whose source changed and reuses the committed freeze for the rest.
      # Push that refreshed freeze to main so the next render reuses it
      # instead of recomputing the same modules every time. Pushes made with
      # GITHUB_TOKEN do not trigger workflows, so this does not loop.
      - name: Commit refreshed module freeze
        run: |
          git config user.name  "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add _freeze
          git diff --cached --quiet && echo "No freeze changes" && exit 0
          git commit -m "chore: update module freeze [skip ci]"
          git push