duplicity 0.6.17 uses paramiko backend.
Thus, it does not support limiting bandwidth anymore.
Let's use trickle to support bandwidth shaping anyway.

... and warn about unsupported options.

Thanks to Yuval Kogman <nothingmuch@woobling.org> for the patch.

Thanks to Olivier Berger <oberger@ouvaton.org> for the patch.
(Closes Redmine bug #3443)
(Closes: #641120)

Now that there's some removal of increments for old fulls, we can keep fulls for a longer time, for instance 1Y which becomes default

Closes Roundup bug #598.

This breaks support of Debian etch.

... instead of previous /var/backups/duplicity.

This is the only way to securely transmit the FTP password from backupninja
to duplicity.

I'd love to use "dpkg --compare-versions" but we don't want backupninja to be
Debian-specific. Any similar tool?

Signed-off-by: intrigeri <intrigeri@boum.org>

This is necessary to get rid of unnecessary old cache files when cleaning up,
when using duplicity >=0.6.01 that depends on local caching.

Closes: #572721

Thanks to stefan <s.freudenberg@jpberlin.de> for the patch.
This fixes Redmine bug #658.

This also fixes Redmine bug #1021.

Thanks to Ian Beckwith <ianb@erislabs.net> for the patch.

The modelines added match the emacs lines already present and also set
the filetype to sh (just like the emacs lines).

Previously, there were many indentation styles in use: Real tabs, 2, 3
or 4 spaces, mixing these within the same file, function or even within
a single line.

This commit changes all bash scripts in the handlers, src and lib dirs
to use consistent indentation: three spaces are now used everywhere.
Other files (e.g. Makefiles) are left untouched.

Additionally, this commit removes all trailing whitespace.

dup: added option --force to cleanup and remove-older-than commands, else they actually do not do anything

dup: support every duplicity-supported transport with new configuration option desturl (Closes: #483712, #346040, Trac#2)

 - general cleanup of dup handler
 - support remove-older-than command
 - also run "duplicity cleanup" before anything else, for safety reasons
 - migrated full/incremental backup switch to new syntax
ChangeLog: removed trailing space