Attempt to detect the installer layout on Mac

Author: FiniteReality

action.yml

@@ -38,8 +38,21 @@ runs:
         mkdir -p "$RUNNER_TOOL_CACHE/vulkan/$sdkVersion"
         mkdir -p "$RUNNER_TEMP/vulkan_sdk"
         ditto -xk "$RUNNER_TEMP/vulkan_sdk.zip" "$RUNNER_TEMP/vulkan_sdk"
-        appRoot="$RUNNER_TEMP/vulkan_sdk/vulkansdk-macOS-$sdkVersion.app"
-        installer="$appRoot/Contents/MacOS/vulkansdk-macOS-$sdkVersion"
+
+        installer=""
+        if [[ -d "$RUNNER_TEMP/vulkan_sdk/InstallVulkan.app" ]]; then
+          # This version uses the "old" SDK installer layout
+          appRoot="$RUNNER_TEMP/vulkan_sdk/InstallVulkan.app"
+          installer="$appRoot/Contents/MacOS/InstallVulkan"
+        elif [[ -d "$RUNNER_TEMP/vulkan_sdk/vulkansdk-macOS-$sdkVersion.app" ]]; then
+          # This version uses the "new" SDK installer layout
+          appRoot="$RUNNER_TEMP/vulkan_sdk/vulkansdk-macOS-$sdkVersion.app"
+          installer="$appRoot/Contents/MacOS/vulkansdk-macOS-$sdkVersion"
+        else
+          echo "::error::Failed to determine Vulkan SDK installer layout"
+          echo "unknown SDK layout" && exit 1
+        fi
+        
         $installer --root "$RUNNER_TOOL_CACHE/vulkan/$sdkVersion" --accept-licenses --default-answer --auto-answer OverwriteTargetDirectory=Yes --confirm-command install copy_only=1
       shell: bash
       if: ${{ steps.cache-restore.outputs.cache-hit != 'true' && runner.os == 'macOS' }}