help needed with figuring out an odd github source URL

[Perry E. Metzger]

On Sat, 16 Dec 2017 19:05:45 -0500 "Perry E. Metzger"
<perry at piermont.com> wrote:
> Coq has moved to github for releases, and the form of the release
> url I need to produce is:
> 
>    https://github.com/coq/coq/archive/V8.7.1.tar.gz
> 
> What "github.setup" magic do I need for this?
> 
> If I do
> 
>    github.setup        coq coq 8.7.1
> 
> it tries to get
> https://github.com/coq/coq/tarball/8.7.1/coq-8.7.1.tar.gz which
> isn't what I need.
> 
> (And I wish I understood the github portgroup stuff better. :( )

It seems that simply doing

github.setup   coq coq 8.7.1 V

works. Though I wish I understood the magic going on with github's
URLs better.

BTW, does the github portgroup handle "livecheck" automatically or
does one still need to do that "by hand"?

Perry
-- 
Perry E. Metzger		perry at piermont.com