From 40d5ddde5b1139119c9114951a086f74d4554a18 Mon Sep 17 00:00:00 2001
From: Cassidy James Blaede <c@ssidyjam.es>
Date: Mon, 16 Dec 2024 11:28:34 -0700
Subject: [PATCH] Workflows: Download and cache Godot Engine for build

Rather than relying on downloading and executing in a third-party container, we can just grab Godot Engine and the export templates directly from the upstream release page.

We cache these downloads so future runs have the binaries and templates (the latter of which are quite large) available right away for the run.
---
 .github/workflows/github-pages.yml | 42 +++++++++++++++++++++++++-----
 .gitignore                         |  3 +++
 2 files changed, 38 insertions(+), 7 deletions(-)

diff --git a/.github/workflows/github-pages.yml b/.github/workflows/github-pages.yml
index 1106ad9..3270782 100644
--- a/.github/workflows/github-pages.yml
+++ b/.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
diff --git a/.gitignore b/.gitignore
index 4709183..c845ee5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,5 @@
 # Godot 4+ specific ignores
 .godot/
+
+# Working directory
+build/