bug#48111: tilde in Go package names (eg. sourcehut hosted packages)

[raingloom]

On Fri, 30 Apr 2021 11:53:40 +0200
Leo Prikler <leo.prikler@student.tugraz.at> wrote:

> Am Donnerstag, den 29.04.2021, 19:54 +0200 schrieb raingloom:
> > Trying to import kineto and getting this error when building it:
> > 
> > guix build: error: invalid character `~' in name
> > `go-git-sr-ht-~sircmpwn-kineto-0.0.0-20210225135222-edd4fe31f16f-
> > checkout.drv'
> > 
> > I know the names are significant in go-build-system so I'm not sure
> > how
> > to work around the issue without breaking anything.  
> The way Go works, I would hazard a guess, that 
>   module git.sr.ht/~sircmpwn/kineto
> and 
>   module git.sr.ht/sircmpwn/kineto
> name two different modules.  However, as the latter can't exist since
> sr.ht prefixes user names with ~, I think a name transformation, that
> maps the former to the latter should be safe.  On the other hand,
> since this just affects store file names, we might instead want to
> map "~" to "-" in the general case of it appearing anywhere.  WDYT? 
> 
> Regards,
> Leo
> 

It turns out that it's okay to change the names, only the input alist
keys are significant. So it was relatively quick to fix this by hand.
Not sure how the importer should handle it. I've been meaning to look
at importers for a while, because I wanna tackle either a Chicken or an
Akku importer, so, I'll try something Eventually (TM), but can't
promise a deadline.