[Duplicity-talk] Restart duplicity without private key

[Radomir Cernoch]

Dear all,

I would like to use duplicity (v0.6.23 from Debian) without saving the
private key or its passphrase on the computer. After having abandoned
signing and started using encryption only, there is still an issue.

If a backup is interrupted, the local metadata go out of sync with
remote metadata. A subsequent backup needs to synchronize and
decrypt them from the remote server. However, this  procedure fails,
because of the missing private key. The result is undesirable: Every
interrupted backup requires a human intervention.

As a compromise, I hoped to use "cleanup" before every backup, which
would have enforced a full backup after an interrupted one.
Nevertheless, even the "cleanup" command requires the passphrase.

Why is it the case? A cleanup should only delete remote files,
shouldn't it? Is there a way to escape the "interrupted backup" trap?

Thanks in advance for your advice and help,
Radek Černoch