Ask all the "optional" questions before beginning to install plugins

[Guldoman]

For example at the moment if someone leaves the terminal while a download is in progress, they might get back to a prompt that will trigger another download.

[adamharrison]

This is complicated, as there could be a chain of these, and I'd have to rearchitect how it fetches things. Realistically, we don't know whether we need to fetch the dependencies of something until you ask to install it. If those dependencies have optional dependencies, we have to recursively fetch all that. We can do it, but it'd likely mean huge chains of downloads for not necessarily a good reason.

[Guldoman]

Can we get the ones for the already fetched repos in a reasonable manner?

[adamharrison]

Probably a lot easier, yeah. I'd be OK with that, I suppose.

[Guldoman]

I was thinking, what if you only delay files downloads?