feat(git): enhance git folder scripts with validation and error handling for missing submodules and existing directories

bin/pull-git-folder

@@ -12,11 +12,18 @@ pull-git-folder() {
 
     local git_folders=$(ls-git-folder "$2")
     for git_folder in $git_folders; do
+        git_folder="${git_folder#./}"
+
+        local git_folder_path=$(git config --file .gitmodules --get submodule."$git_folder".path)
+        local git_folder_url=$(git config --file .gitmodules --get submodule."$git_folder".url)
+        
+        if [[ -z "$git_folder_path" ]] || [[ -z "$git_folder_url" ]]; then
+            echo "Skipping: '$git_folder' not defined in .gitmodules."
+            continue
+        fi
+
         echo "Pull git folder $git_folder."
         git -C "$git_folder" stash
-        local update=$(git config submodule."$git_folder".update)
-        if [[ -z "$update" ]]; then
-            git -C "$git_folder" pull origin "$1"
-        fi;
+        git -C "$git_folder" pull origin "$1"
     done
 }