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###############################################################
# Options
###############################################################
=pod

=head2 Options

=over 4

=item -h, -help

Display a brief help message and exit.

=item -l, -list

List all known L<DiaColloDB::Upgrade|DiaColloDB::Upgrade> packages.

=item -w, -which

List upgrades  previously applied to C<DBDIR>.

=item -c, -check

Check applicability of available upgrades to C<DBDIR>.

=item -u, -upgrade

Apply any applicable upgrades to F<DBDIR>;
this is the default mode of operation.
It is safest to make a manual backup of F<DBDIR> before upgrading,
although the L<DiaColloDB::Upgrade::Base|DiaColloDB::Upgrade::Base>
hierarchy should provide backup functionality for changed files.

=item -r, -revert

Revert the most recently applied upgrade to F<DBDIR>;
requires that a backup was auto-created by the L<DiaColloDB::Upgrade::Base|DiaColloDB::Upgrade::Base>
subclass implementing the most recent upgrade.

=item -a, -apply PKGS

Force-apply the comma- or space-separated list of
L<DiaColloDB::Upgrade|DiaColloDB::Upgrade>-compliant packages
C<PKGS> to F<DBDIR>.
Use with caution, no applicability checking is performed in this mode.

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=cut


###############################################################
# Bugs and Limitations
###############################################################
=pod

=head1 BUGS AND LIMITATIONS

Probably many.

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###############################################################
# Footer
###############################################################
=pod

=head1 ACKNOWLEDGEMENTS

Perl by Larry Wall.

=head1 AUTHOR

Bryan Jurish E<lt>moocow@cpan.orgE<gt>

=head1 SEE ALSO

L<DiaColloDB::Upgrade(3pm)|DiaColloDB::Upgrade>,
L<DiaColloDB(3pm)|DiaColloDB>,
L<dcdb-info.perl(1)|dcdb-info.perl>,
perl(1).

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