[CI] Upload build cache before running tests

This improves turnaround time on large PRs where compilation is
successful but unit testing or similar fails, forcing recompilation of
unchanged code

1 files changed, 17 insertions, 0 deletions

diff --git a/.github/actions/godot-cache-save/action.yml b/.github/actions/godot-cache-save/action.yml
new file mode 100644
index 0000000000..b7cbf91f94
--- /dev/null
+++ b/.github/actions/godot-cache-save/action.yml
@@ -0,0 +1,17 @@
+name: Save Godot build cache
+description: Save Godot build cache.
+inputs:
+  cache-name:
+    description: The cache base name (job name by default).
+    default: "${{github.job}}"
+  scons-cache:
+    description: The SCons cache path.
+    default: "${{github.workspace}}/.scons-cache/"
+runs:
+  using: "composite"
+  steps:
+    - name: Save SCons cache directory
+      uses: actions/cache/save@v4
+      with:
+        path: ${{inputs.scons-cache}}
+        key: ${{inputs.cache-name}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}