[RFC] optionally set GOPROXY, GOSUMDB when building go packages

[hazen2215]

• I tested the changes in this PR: YES

This will allow xbps-src to set environment variable GOPROXY and GOSUMDB when building go packages.
When GOPROXY is set to direct, it pulls modules from source repositories like github and git and mercurial needs to be in hostmakedepends.

[classabbyamp]

cc: @the-maldridge

[hazen2215]

According to go help vcs, go will only use git and mercurial to download code from public servers.

edit: spammed comment by accident, sorry

[classabbyamp]

what's your use-case for this?

[ahesford]

Adding magic to XBPS really only makes sense if it impacts more than a couple of templates. If you have a template that would benefit from this (and, if so, why isn't it being modified to use these features here?), you might as well just export the variables directly and add the dependencies you require.

[hazen2215]

I use xbps-src to build a lot of my own local packages because of its advantages (like building on chroot and similarity to BSD ports).
Also I often rebuild packages with custom FLAGS, and when building go package I prefer these varaibles to be set for some reasons like privacy.

Related blog post:
https://drewdevault.com/2022/05/25/Google-has-been-DDoSing-sourcehut.html
https://drewdevault.com/2021/08/06/goproxy-breaks-go.html

[hazen2215]

Adding magic to XBPS really only makes sense if it impacts more than a couple of templates. If you have a template that would benefit from this (and, if so, why isn't it being modified to use these features here?), you might as well just export the variables directly and add the dependencies you require.

It impacts when building any go package locally.

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[github-actions]

Pull Requests become stale 90 days after last activity and are closed 14 days after that. If this pull request is still relevant bump it or assign it.

[github-actions]

Pull Requests become stale 90 days after last activity and are closed 14 days after that. If this pull request is still relevant bump it or assign it.