registry backup (and upgrade --force)

[Rainer Müller]

On 2016-04-03 16:02, Clemens Lang wrote:
> On Sun, Apr 03, 2016 at 11:19:33PM +1000, Joshua Root wrote:
>> Not if they have outdated dependencies. Upgrade without -n is a
>> recursive operation.
> 
> Good point.
> 
>> Not passing the --force flag on to the deps by default would be ok I
>> guess, but what if the user wants that?
> 
> Doesn't the global -f option achieve the same, then?

The global -f enables force on all phases. For example, this would also
let the port activation overwrite existing files. The action-specific
--force only forces the upgrade.

Rainer