Workflows: Download and cache Godot Engine for build

.github/workflows/github-pages.yml

@@ -46,23 +46,51 @@ jobs:
       - check
     if: ${{ needs.check.outputs.enabled }}
     runs-on: ubuntu-latest
-    container:
-      image: barichello/godot-ci:4.3
     steps:
       - name: Checkout
         uses: actions/checkout@v4
         with:
           lfs: true
 
-      - name: Set up export templates
+      - 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 -v -p ~/.local/share/godot/export_templates/
-          mv /root/.local/share/godot/export_templates/${GODOT_VERSION}.stable ~/.local/share/godot/export_templates/${GODOT_VERSION}.stable
+          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
-          godot --headless --verbose --export-release "Web" ./build/web/index.html
+          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

.gitignore

@@ -1,2 +1,5 @@
 # Godot 4+ specific ignores
 .godot/
+
+# Working directory
+build/