Update from upstream script updated

update_from_upstream.sh

@@ -1,4 +1,32 @@
 #!/bin/bash
 
-git fetch https://github.com/flathub/net.rpcs3.RPCS3 master  # Fetch the latest changes from the remote master branch
+target_branch="master"
-git merge FETCH_HEAD  # Merge the fetched changes into your current branch
+update_submodules="true"
+
+# Get the repository name
+repo_url=$(git remote get-url origin)
+repo_name=$(basename -s .git "$repo_url")
+
+echo "Fetching https://github.com/flathub/$repo_name $target_branch"
+if [ "$update_submodules" = "true" ]; then
+    echo "And updating submodules also"
+fi
+echo ""
+
+# Fetch the latest changes from the remote master branch
+git fetch https://github.com/flathub/"$repo_name" "$target_branch"
+
+# Merge the fetched changes into your current branch
+git merge FETCH_HEAD
+
+if [ "$update_submodules" = "true" ]; then
+    # Update submodules to the versions specified in the repo
+    git submodule update --init --recursive
+
+    # Update submodules to the versions specified in the fetched repo
+    git submodule update --remote
+    git add shared-modules
+    git commit -m "Update shared modules"
+fi
+
+