update to mdns_lite 0.8

[petermm]

updating mdns_lite (mix deps.update) currently fails as 0.8 had a breaking change with *_mdns_services going singular..
https://hexdocs.pm/mdns_lite/MdnsLite.html#add_mdns_service/1

thus fixing this AND locking the mdns_lite dep to the 0.8.x versions for future proofing..

tests not affected.

note: mdns_lite brings in vintage_net since 0.7, thus the extra deps in mix.lock - https://hexdocs.pm/mdns_lite/0.8.1/changelog.html

[mtrudel]

You're braver than me; mDNS has been the bane of my existence on this project (i've gone through all the libraries and they all come up short in one way or another. DNS is a tricky thing I guess). Once you manage to sort out CI on here I'll pull it down and kick the tires locally.

[mtrudel]

@petermm just to make sure your hard work gets put to good use, please do ping me if this is ready for review / merge and I'm not being timely. There's a lot of (necessary) noise here and I want to make sure I don't miss anything.

[mtrudel]

@petermm tests are green - is this ready for review?

[petermm]

@mtrudel while CI is green - I've come to realise that mdns_lite 0.8 removes support for named services, and they are now all back to being advertised under the hostname (you added named services in the past nerves-networking/mdns_lite#10)

one can change the hostname to "My lightbulb" or similar - but unsure if one might run multiple HapServer from same device and that is a limit..

So something for you to consider, on how to proceed, potentially named services can be added to mdns_lite again..

It does have it's advantages going to 0.8 (say working out of the box on latest nerves, and things like nerves livebooks etc). - but staying behind might also be good - your decision..

[mtrudel]

Thanks for the research @petermm - the ability to add named services is a bit of a big deal for HAP (which is why nerves-networking/mdns_lite#10 was submitted in the first place). This puts us in a bit of a hard place here as being able to run on the latest Nerves is also kind of a big deal for HAP. Ultimately this PR (or something very close to it) should land, but I'd like to see what can be done about preserving name-based mDNS as well.

Going through the mdns_lite changelog I don't see anything indicating that the feature's removal was intentional; perhaps this is a regression. I'm booked solid for the next few weeks getting my ElixirConf talk ready, but I'll come back to this and try to get to a resolution once I'm past that. Thanks for your patience.

[mtrudel]

Merged! As soon as I get green CI on main I'll cut a new hex release. Thanks again!