[GSoC] migration

[Bradley Giesbrecht]

> On Jul 27, 2017, at 2:10 PM, db <iamsudo at gmail.com> wrote:
> 
> On 27 Jul 2017, at 21:21, Bradley Giesbrecht <pixilla at macports.org> wrote:
>> Migration will uninstall all installed ports and then install all the ports from the snapshot
> 
> Yes, but I'm talking about using snapshot and restore at different times with ports being updated between them, likely resulting in different outcomes.

We are not keeping track of port versions so restore would deactivate all ports and then install the snap shot ports with variants. At least that is what I imagine.

—
Brad