Available in public-inbox 1.6.0+.
+=item --update-extindex=EXTINDEX, -E
+
+Update the given external index (L<public-inbox-extindex-format(5)>.
+Either the configured section name (e.g. C<all>) or a directory name
+may be specified.
+
+Defaults to C<all> if C<[extindex "all"]> is configured,
+otherwise no external indices are updated.
+
+May be specified multiple times in rare cases where multiple
+external indices are configured.
+
+=item --no-update-extindex
+
+Do not update the C<all> external index by default. This negates
+all uses of C<-E> / C<--update-extindex=> on the command-line.
+
=back
=head1 FILES
=head1 COPYRIGHT
-Copyright 2016-2020 all contributors L<mailto:meta@public-inbox.org>
+Copyright 2016-2021 all contributors L<mailto:meta@public-inbox.org>
License: AGPL-3.0+ L<https://www.gnu.org/licenses/agpl-3.0.txt>
=head1 SEE ALSO
-L<Search::Xapian>, L<DBD::SQLite>
+L<Search::Xapian>, L<DBD::SQLite>, L<public-inbox-extindex-format(5)>