github-pages.yml

name: "Publish to GitHub Pages"
on:
  workflow_dispatch:
  release:
    types:
      - published

# Cancel any ongoing previous run if the job is re-triggered
concurrency:
  group: ${{ github.workflow }}
  cancel-in-progress: true

permissions:
  contents: read
  pages: write
  id-token: write

env:
  GODOT_VERSION: 4.3

jobs:
  check:
    name: Check if GitHub Pages is enabled
    runs-on: ubuntu-latest
    steps:
      - name: Check
        id: check
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          if gh api "repos/${{ github.repository }}/pages" | jq --exit-status '.build_type == "workflow"'
          then
              echo "enabled=true" >> "$GITHUB_OUTPUT"
          else
              echo "# Not published to GitHub Pages" >> "$GITHUB_STEP_SUMMARY"
              echo "" >> "$GITHUB_STEP_SUMMARY"
              echo -n "Check that Pages is enabled, with the source set to GitHub Actions, in the " >> "$GITHUB_STEP_SUMMARY"
              echo "[repository settings](https://github.com/${{ github.repository }}/settings/pages)." >> "$GITHUB_STEP_SUMMARY"
          fi
    outputs:
      enabled: ${{ steps.check.outputs.enabled }}

  build:
    name: Build for web
    needs:
      - check
    if: ${{ needs.check.outputs.enabled }}
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          lfs: true

      - name: Cache Godot Engine downloads
        id: cache-godot
        uses: actions/cache@v4
        with:
          path: |
            build/godot
            build/._sc_
            build/editor_data/export_templates/${{ env.GODOT_VERSION }}.stable
          key: godot-${{ env.GODOT_VERSION }}

      - name: Download Godot Engine from GitHub release
        id: download
        if: steps.cache-godot.outputs.cache-hit != 'true'
        run: |
          mkdir -p build && cd build

          # Download Godot Engine itself
          wget https://github.com/godotengine/godot/releases/download/${GODOT_VERSION}-stable/Godot_v${GODOT_VERSION}-stable_linux.x86_64.zip && \
          unzip Godot_v${GODOT_VERSION}-stable_linux.x86_64.zip && \
          mv Godot_v${GODOT_VERSION}-stable_linux.x86_64 godot

          # Download export templates
          mkdir -p editor_data/export_templates
          wget https://github.com/godotengine/godot/releases/download/${GODOT_VERSION}-stable/Godot_v${GODOT_VERSION}-stable_export_templates.tpz && \
          unzip Godot_v${GODOT_VERSION}-stable_export_templates.tpz && \
          mv templates editor_data/export_templates/${GODOT_VERSION}.stable

          # Tell Godot Engine to run in "self-contained" mode so it looks for
          # templates here instead of in ~/.local/share/godot/
          touch ._sc_

      - name: Web Build
        run: |
          mkdir -v -p build/web && cd build

          # Note that the export path can be confusing; it's relative to the
          # Godot project path, NOT necessarily the current directory or Godot
          # binary location
          ./godot --headless --verbose --path ../ --export-release "Web" ./build/web/index.html

      - name: Upload Artifact
        uses: actions/upload-pages-artifact@v3
        with:
          name: web
          path: build/web

  publish:
    name: Publish to GitHub Pages
    needs:
      - build
    runs-on: ubuntu-latest
    steps:
      - id: deploy
        name: Deploy to GitHub Pages
        uses: actions/deploy-pages@v4
        with:
          artifact_name: web

      - name: Show URL in summary
        if: ${{ steps.deploy.outcome == 'success' }}
        run: |
          echo "Game published to: <${{ steps.deploy.outputs.page_url }}>" >> "$GITHUB_STEP_SUMMARY"