Merge pull request #5107 from adriadam10/ci/linux-mesa-shader-cache

ci(linux): keep lavapipe's shader cache between builds

.github/workflows/build.yml

@@ -241,6 +241,13 @@ jobs:
           evict-old-files: job
       - name: Install lavapipe and the SDL audio and XRandR development files
         run: sudo apt-get update && sudo apt-get install -y --no-install-recommends libvulkan1 mesa-vulkan-drivers libpipewire-0.3-dev libpulse-dev libasound2-dev libxrandr-dev
+      - id: mesa
+        run: echo "version=$(dpkg-query -W -f='${Version}' mesa-vulkan-drivers)" >> "$GITHUB_OUTPUT"
+      - uses: actions/cache/restore@v6
+        with:
+          path: .mesa-shader-cache
+          key: mesa-${{ steps.mesa.outputs.version }}-${{ github.sha }}
+          restore-keys: mesa-${{ steps.mesa.outputs.version }}-
       - run: cmake -S . -B build $CONFIGURE -DANYPS5_ENABLE_SPIRV_TOOLS=ON
       - name: Check that every test executable is registered with ctest
         run: python3 tools/check_test_registration.py build
@@ -250,6 +257,12 @@ jobs:
         env:
           ANYPS5_REQUIRE_VULKAN: 1
           GALLIUM_OVERRIDE_CPU_CAPS: avx
+          MESA_SHADER_CACHE_DIR: ${{ github.workspace }}/.mesa-shader-cache
+      - if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' && !cancelled() }}
+        uses: actions/cache/save@v6
+        with:
+          path: .mesa-shader-cache
+          key: mesa-${{ steps.mesa.outputs.version }}-${{ github.sha }}
       - run: python3 tools/check_skips.py build/ctest.xml
       - name: Report tests slower than 30 s
         if: ${{ !cancelled() }}