add fetch option to return early if already run

Author: eritbh

bin/op-ssh-fetch

@@ -3,6 +3,17 @@
 dirname="$(dirname "$(realpath $0)")"
 source "$dirname/../common.sh"
 
+OPTIND=1
+while getopts "hn" opt; do
+	case "$opt" in
+	n)
+		if [ -f "$temp_storage_root/ssh_config" ]; then
+			exit 0
+		fi
+		;;
+	esac
+done
+
 op_signin $@
 
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