nixos/syncthing: match stale ids by subtracting in jq

      the Nix configured list of IDs

      */

      + lib.optionalString s.override ''

        old_conf_${conf_type}_ids="$(curl -X GET ${s.baseAddress} | ${jq} --raw-output '.[].${s.GET_IdAttrName}')"

        for id in ''${old_conf_${conf_type}_ids}; do

          if echo ${lib.concatStringsSep " " s.new_conf_IDs} | grep -q $id; then

            continue

          else

        stale_${conf_type}_ids="$(curl -X GET ${s.baseAddress} | ${jq} \

          --argjson new_ids ${lib.escapeShellArg (builtins.toJSON s.new_conf_IDs)} \

          --raw-output \

          '[.[].${s.GET_IdAttrName}] - $new_ids | .[]'

        )"

        for id in ''${stale_${conf_type}_ids}; do

          curl -X DELETE ${s.baseAddress}/$id

          fi

        done

      ''

    ))