feat(ip): Complete ip route list options

completions/ip

@@ -249,11 +249,26 @@ _comp_cmd_ip()
         r | route)
             case $subcmd in
                 list | flush | save)
-                    if [[ $prev == proto ]]; then
-                        _comp_cmd_ip__iproute2_etc rt_protos
-                    else
-                        : # TODO
-                    fi
+                    case "$prev" in
+                        proto)
+                            _comp_cmd_ip__iproute2_etc rt_protos
+                            ;;
+                        table)
+                            _comp_compgen -- -W 'local main default all'
+                            ;;
+                        scope)
+                            _comp_cmd_ip__iproute2_etc rt_scopes
+                            ;;
+                        root | match | exact | vrf)
+                            : # TODO: Can we complete vrf?
+                            ;;
+                        type)
+                            _comp_compgen -- -W 'unicast local broadcast multicast throw unreachable prohibit blackhole nat'
+                            ;;
+                        *)
+                            _comp_compgen -- -W 'root match exact table vrf proto type scope'
+                            ;;
+                    esac
                     ;;
                 get)
                     case $prev in