Re: hard dependency on Git? (was bug#65866: [PATCH 0/8] Add built-in builder for Git checkouts)

[wolf]

On 2023-09-12 08:56:15 -0400, Maxim Cournoyer wrote:
> Hi,
> 
> Josselin Poiret <dev@jpoiret.xyz> writes:
> 
> > Hi,
> >
> > Maxim Cournoyer <maxim.cournoyer@gmail.com> writes:
> >
> >> That's no longer true, as of libgit2 v1.7.0 [0].  I already have it
> >> packaged in a branch, but I need to iron out dependent breakages.
> >>
> >> [0]  https://github.com/libgit2/libgit2/releases/tag/v1.7.0
> >>
> >> So given there's no technical reasons not to use libgit2, I'd use that
> >> and keep the closure size down.
> >
> > There's still the `git gc` problem though.
> 
> It's klunky, but a workaround is to locally clone the checkout anew using
> libgit2, as suggested here [0].

While the comment does suggest a workaround, I would recommend to read the
comment right below it before using it.  I am not sure if Guix would be affected
by those mentioned concurrency issues, but sounds like something that needs to
be understood in detail.

> We could also try to contribute to libgit2 toward adding proper support for a
> 'gc' action.
> 
> [0]  https://github.com/libgit2/libgit2/issues/3247#issuecomment-486585944
> 
> -- 
> Thanks,
> Maxim
> 

-- 
There are only two hard things in Computer Science:
cache invalidation, naming things and off-by-one errors.

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