Update install_vulkan_sdk_macos.sh

Fix macos Vulkan SDK download

Author: CedNaru

install_vulkan_sdk_macos.sh

@@ -1,19 +1,45 @@
+
 #!/usr/bin/env sh
 
 set -euo pipefail
 IFS=$'\n\t'
+new_ver_full=''
+
+# Check currently installed and latest available Vulkan SDK versions.
+if command -v jq 2>&1 >/dev/null; then
+	curl -L "https://sdk.lunarg.com/sdk/download/latest/mac/config.json" -o /tmp/vulkan-sdk.json
+
+	new_ver_full=`jq -r '.version' /tmp/vulkan-sdk.json`
+	new_ver=`echo "$new_ver_full" | awk -F. '{ printf("%d%02d%04d%02d\n", $1,$2,$3,$4); }';`
+
+	rm -f /tmp/vulkan-sdk.json
+
+	for f in $HOME/VulkanSDK/*; do
+		if [ -d "$f" ]; then
+			f=`echo "${f##*/}" | awk -F. '{ printf("%d%02d%04d%02d\n", $1,$2,$3,$4); }';`
+			if [ $f -ge $new_ver ]; then
+				echo 'Latest or newer Vulkan SDK is already installed. Skipping installation.'
+				exit 0
+			fi
+		fi
+	done
+else
+	echo 'Error: Could not find 'jq' command. Is jq installed? Try running "brew install jq" or "port install jq" and rerunning this script.'
+	exit 1
+fi
 
 # Download and install the Vulkan SDK.
 curl -L "https://sdk.lunarg.com/sdk/download/latest/mac/vulkan-sdk.zip" -o /tmp/vulkan-sdk.zip
-unzip -l /tmp/vulkan-sdk.zip | grep 'InstallVulkan.*\.app' | head -n 1 | awk '{print $4}' | tr -d '/' > /tmp/install_app_name
-
 unzip /tmp/vulkan-sdk.zip -d /tmp
-install_app_name=$(cat /tmp/install_app_name)
-/tmp/$install_app_name/Contents/MacOS/${install_app_name%\.app} \
-    --accept-licenses --default-answer --confirm-command install
 
-rm -rf /tmp/$install_app_name
+if [ -d "/tmp/vulkansdk-macOS-$new_ver_full.app" ]; then
+	/tmp/vulkansdk-macOS-$new_ver_full.app/Contents/MacOS/vulkansdk-macOS-$new_ver_full --accept-licenses --default-answer --confirm-command install
+	rm -rf /tmp/vulkansdk-macOS-$new_ver_full.app
+else
+	echo "Couldn't install the Vulkan SDK, the unzipped contents may no longer match what this script expects."
+	exit 1
+fi
+
 rm -f /tmp/vulkan-sdk.zip
-rm -f /tmp/install_app_name
 
-echo 'Vulkan SDK installed successfully! You can now build Godot by running "scons".'
+echo 'Vulkan SDK installed successfully! You can now build Godot by running "scons".'