git config -f .gitmodules --get-regexp '^submodule\..*\.path$' | 
	while read -r KEY MODULE_PATH; do
		[ -d "${MODULE_PATH}" ] && rm -rf "${MODULE_PATH}"
		NAME="$(echo "${KEY}" | sed 's/^submodule\.\(.*\)\.path$/\1/')"
		url_key="$(echo "${KEY}" | sed 's/\.path$/.url/')"
		branch_key="$(echo "${KEY}" | sed 's/\.path$/.branch/')"
		required_key="$(echo "${KEY}" | sed 's/\.path$/.required/')"
		commit_key="$(echo "${KEY}" | sed 's/\.path$/.commit/')"
		URL="$(git config -f .gitmodules --get "${url_key}")"
		BRANCH="$(git config -f .gitmodules --default "$(git config -f .gitmodules --get "${branch_key}")" --get "${commit_key}")"
		REQUIRED="$(git config -f .gitmodules --get "${required_key}")"
		if [ -n "$BRANCH" ]; then
			BRANCH=( "-b" "${BRANCH}" )
		else
			BRANCH=( )
		fi
		if [ ! "$REQUIRED" = "false" ]; then
			git clone ${BRANCH[@]} --recursive --depth 1 -- "${URL}" "${MODULE_PATH}" || continue
		fi
done