cache vulkan sdk

Author: netrunnereve

.github/workflows/build.yml

@@ -408,19 +408,31 @@ jobs:
           sudo apt-get update -y
           sudo apt-get install -y build-essential mesa-vulkan-drivers libxcb-xinput0 libxcb-xinerama0 libxcb-cursor-dev libcurl4-openssl-dev
 
+      - name: Get latest Vulkan SDK version
+        id: vulkan_sdk_version
+        run: |
+          echo "VULKAN_SDK_VERSION=$(curl https://vulkan.lunarg.com/sdk/latest/linux.txt)" >> "$GITHUB_ENV"
+
+      - name: Cache Vulkan SDK
+        id: cache_vulkan_sdk
+        uses: actions/cache@v4
+        with:
+          path: /tmp/vulkan_sdk/${{ env.VULKAN_SDK_VERSION }}
+          key: vulkan-sdk-${{ env.VULKAN_SDK_VERSION }}-${{ runner.os }}
+
       - name: Install Vulkan SDK
-        id: vulkan_sdk
+        if: steps.cache_vulkan_sdk.outputs.cache-hit != 'true'
+        id: vulkan_sdk_install
         run: |
-          mkdir vulkan_sdk
-          cd vulkan_sdk
-          wget https://sdk.lunarg.com/sdk/download/latest/linux/vulkan_sdk.tar.xz
+          mkdir -p /tmp/vulkan_sdk
+          cd /tmp/vulkan_sdk
+          wget https://sdk.lunarg.com/sdk/download/${VULKAN_SDK_VERSION}/linux/vulkan_sdk.tar.xz
           tar -xf vulkan_sdk.tar.xz
-          echo "VULKAN_SETUP=$(readlink -f ./*/setup-env.sh)" >> "$GITHUB_ENV"
 
       - name: Build
         id: cmake_build
         run: |
-          source $VULKAN_SETUP
+          source /tmp/vulkan_sdk/${VULKAN_SDK_VERSION}/setup-env.sh
           cmake -B build \
             -DGGML_VULKAN=ON
           cmake --build build --config Release -j $(nproc)