Default: C<1>
-=item --indexlevel <basic|medium|full>
+=item -L, --indexlevel <basic|medium|full>
Controls the indexing level for L<public-inbox-index(1)>
Default: C<full>
+=item --ng, --newsgroup NEWSGROUP
+
+The NNTP group name for use with L<public-inbox-nntpd(8)>. This
+may be any newsgroup name with hierarchies delimited by C<.>.
+For example, the newsgroup for L<mailto:meta@public-inbox.org>
+is: C<inbox.comp.mail.public-inbox.meta>
+
+This may be set after-the-fact via C<publicinbox.$NAME.newsgroup>
+in the configuration file. See L<public-inbox-config(5)> for more
+info.
+
+Available in public-inbox 1.6.0+.
+
+Default: none.
+
+=item --skip-artnum
+
+This option allows archivists to publish incomplete archives
+with only new mail while allowing NNTP article numbers
+to be reserved for yet-to-be-archived old mail.
+
+This is mainly intended for users of C<--skip-epoch> (documented below)
+but may be of use to L<public-inbox-v1-format(5)> users.
+
+There is no automatic way to use reserved NNTP article numbers
+when old mail is found, yet.
+
+Available in public-inbox 1.6.0+.
+
+Default: unset, no NNTP article numbers are skipped
+
=item -S, --skip-epoch
For C<-V2> (L<public-inbox-v2-format(5)>) inboxes only, this option
mail while allowing "0.git" (or "1.git" and so on) epochs to be
added-after-the-fact (without affecting "git clone" followers).
+Available since public-inbox 1.2.0.
+
Default: unset, no epochs are skipped
=item -j, --jobs=JOBS
Control the number of Xapian index shards in a
C<-V2> (L<public-inbox-v2-format(5)>) inbox.
-It is useful to use a single shard (C<-j1>) for inboxes on
+It can be useful to use a single shard (C<-j1>) for inboxes on
high-latency storage (e.g. rotational HDD) unless the system has
enough RAM to cache 5-10x the size of the git repository.
-It is generally not useful to specify higher values than the
-default due to contention in the top-level producer process.
+Another approach for HDDs is to use the
+L<public-inbox-index(1)/publicInbox.indexSequentialShard> option
+and many shards, so each shard may fit into the kernel page
+cache. Unfortunately, excessive shards slows down read-only
+query performance.
+
+For fast storage, it is generally not useful to specify higher
+values than the default due to the top-level producer process
+being a bottleneck.
+
+Default: the number of online CPUs, up to 4 (3 shard workers, 1 producer)
-Default: the number of online CPUs, up to 4
+=item --skip-docdata
+
+Do not store document data in Xapian, reducing Xapian storage
+overhead by around 1.5%.
+
+Warning: this option prevents rollbacks to public-inbox 1.5.0
+and earlier.
+
+Available in public-inbox 1.6.0+.
=back
=head1 LIMITATIONS
-This tool predates NNTP support in public-inbox and is missing
-C<newsgroup> and many of the options documented in
-L<public-inbox-config(5)>. See L<public-inbox-config(5)> for all the
-options which may be applied to a given inbox.
+Some of the options documented in L<public-inbox-config(5)>
+require editing the config file. Old versions lack the
+C<--ng>/C<--newsgroup> parameter
+
+See L<public-inbox-config(5)> for all the options which may be applied
+to a given inbox.
=head1 CONTACT
=head1 COPYRIGHT
-Copyright 2019-2020 all contributors L<mailto:meta@public-inbox.org>
+Copyright 2019-2021 all contributors L<mailto:meta@public-inbox.org>
License: AGPL-3.0+ L<https://www.gnu.org/licenses/agpl-3.0.txt>