Using duplicity with gzip max compression but without encryption

Question

I would like to use duplicity in order to perform local back-up of one USB external HD (let's call it hd1) to another USB external HD (let's call it hd2).

I already use deja-dup (which is based on duplicity) to back-up my home dir to hd2. I have noticed that deja-dup creates sigtar.gz files which (according to the file command) are gzip compressed (to the maximum level), non-GPG-encrypted files. This seems like a good trade-off (saving disk space without wasting time to encrypt files which is not needed in my case).

Apparently, playing with both compression and encryption at the same time with duplicity can be a bit tricky.

Does any know how to reproduce this setting (max compression, no encryption) with duplicity?

Answer 1

After a more careful reading of the man page, I have found the --no-encryption which according to the man page: "Do not use GnuPG to encrypt files on remote system. Instead just write gzipped volumes.". That seems exactly what is needed.