Re: git guix checkout automation for contributors

[Maxime Devos]

On 25-09-2022 17:04, Danny Milosavljevic wrote:
> Also, this doesn't work:
>
> On Sun, 25 Sep 2022 16:06:06 +0200
> Danny Milosavljevic<dannym@scratchpost.org>  wrote:
>
> (1) install the guix system
> (2) log in as regular user
> (3c) git clone --depth=1https://git.savannah.gnu.org/git/guix.git  guix \
>     && cd guix \
>     && guix shell

This issue had been reported in <https://issues.guix.gnu.org/50960#13>:

Liliana Marie Prikler wrote:
> What would happen on the top-level of the Guix source tree or deep
> inside the tree of a guile package that deals with manifests, that
> aren't necessarily related to Guix?  I think we should try searching
> for something less ambiguous first (".guix-shell/manifest" perhaps?)
> and maybe also provide further options after manifest.scm (e.g. build-
> aux/guix.scm or etc/guix.scm)

This issue was considered unlikely:

Ludovic Courtès wrote:
> You mean a directory that contains a file named ‘guix.scm’ or
> ‘manifest.scm’ but that happens to do something completely unrelated?
>
> We can never rule this out, but I’d say it’s unlikely (these two
> conventions are rather well established) and it’s up to the user to pay
> attention.
>
> WDYT?

Later shown to be incorrect on the top-level of the Guix source tree 
more explicitly:

Maxime Devos wrote:
> Guix itself doesn't follow this convention: the guix source tree has an 
> unrelated
> "guix.scm" file, that doesn't evaluate to a package.  I'd expect that running
> "guix shell" within the guix source tree would be equivalent to
> "guix environment guix", but currently this doesn't seem to be the case.

As such, it was proposed to leave out auto-detection of ‘guix.scm’:

Liliana Marie Prikler wrote: > Leaving out the auto-detection of 
‘guix.scm’ and ‘manifest.scm’ for now
> is a good idea, given that Guix itself would be an edge-case for that.
> [ proposed alternative solution ]

It was agreed that auto-detection fails here:

Ludovic Courtès wrote:
> > Guix itself doesn't follow this convention: the guix source tree has an 
> > unrelated
> > "guix.scm" file, that doesn't evaluate to a package.
>
> Indeed, but that’s because Guix predates the convention.  :-)
>
> Toggle quote (4 lines)
> > I'd expect that running "guix shell" within the guix source tree would
> > be equivalent to "guix environment guix", but currently this doesn't
> > seem to be the case.
>
> Right, it would fail poorly in this particular case.

... and then ignored, AFAICT.

Greetings,
Maxime.

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