Export/import DB from commandline

[jeanpommier]

Hi, First and foremost, many thank for this nice piece of software. I've been trying to synchronize my Charm db between 2 laptops running different versions (1.11 on a debian Stretch and 1.12 on a Debian Buster) and it occurs the DB schema has changed a little bit. The simplest solution will be to upgrade my Stretch system, but this is not the point here.

I was thinking, it would be nice to have more commandline actions available, for instance export and import DB. This would allow, for instance, running a cron task to backup the Charm db. and of course, would have been handy for my sync problems, I could have scripted all the db sync and transformations. Have a nice week end !