ci: add github workflow

[x1ddos]

Alternative to Travis CI.
Runs the same scripts except SSH for nightly builds.

[x1ddos]

The spurious trailing slash was causing macdeployqt to fail on github macos runner.
Not sure where it was coming from but it doesn't seem to be required according to https://doc.qt.io/qt-5/macos-deployment.html.

[benma]

Can you explain again what is going on with the vendoring?

Cause make go-vendor does not change anything when I run it locally.

Is Go 1.14 forcing a dep update?

If so, let's update Go properly in the Dockerfile?

[benma]

If so, let's update Go properly in the Dockerfile?

Tried doing that here (might be independent, but was about time anyway):

#850

[x1ddos]

I remember there was a change in Go 1.14 which was not backported to 1.13. The change made go mod vendor add all transitive deps where 1.13 would sometimes skip it. This results in 1.14 arriving at different deps versions where 1.13 just wouldn't care and skip. This is my understanding. It's buried somewhere in golang/go#33848 (comment). Release notes https://golang.org/doc/go1.14#tools don't mention this inconsistency either.

Cause make go-vendor does not change anything when I run it locally.

Yeah, I would expect exactly that on 1.13.

Is Go 1.14 forcing a dep update?

Yes. It complains otherwise,

If so, let's update Go properly in the Dockerfile?

Right, it's independent. I would expect updated deps to work with both 1.13 and 1.14.

[benma]

👏

[x1ddos]

I'll wait for #850 and then rebase. Feels like deps sync belongs more to that than this PR.

[x1ddos]

Ok. Removed the sync deps commit but forgot to sign.