Re: GUIX_EXTENSIONS_PATH error?

[zimoun <zimon.toutoune@gmail.com>]

Re,

On Fri, 15 Jan 2021 at 23:42, Ricardo Wurmus <rekado@elephly.net> wrote:
> zimoun <zimon.toutoune@gmail.com> writes:
>
> >> So if the file is at /tmp/foo/guix/extensions/bar.scm then
> >> $GUIX_EXTENSIONS_PATH should be /tmp/foo/guix/extensions.
> >
> > Well, I will propose to have the thing as you said before.  Because
> > fixing (guix extensions bar) and the path $GUIX_EXTENSIONS_PATH/foo
> > seems reasonable but $GUIX_EXTENSIONS_PATH/foo/guix/extensions is too
> > redundant.
>
> It does seem so, but the idea was to reduce the number of files that
> Guix will have to parse before finding an extension.
>
> Extensions would be installed to the same prefix /share/guix/extensions,
> so Guix can set GUIX_EXTENSIONS_PATH to $profile/share/guix/extensions
> and not worry about having to parse all the Scheme files in
> $profile/share, which may be a lot — for example Guix’s own commands are
> defined in files under $profile/share, so they would end up as
> extensions…

Ah I see.

> We can change this, but we’d need to agree on an as yet unused directory
> as the root for extensions.

Well, I have to rehash a bit and then see what could be "user
friendly" without typing redundancy.

> > Moreover, it could nice to have GUIX_EXTENSIONS_PATH look by default
> > in ~/.config/guix/extensions, i.e., by default
> > GUIX_EXTENSIONS_PATH=~/.config.
>
> The last part of this sentence is what I meant above: we need to avoid
> that, because that would cause
> ~/.config/guix/current/share/guile/site/3.0/guix/scripts/ to be included
> in the search for extensions.

Ah I see.  But we could filter out this "current" from the path.  In
the case of default to "~/.config/guix/extensions/".

Well, need some thoughts...

> I have added a search path specification to the “guix” package itself,
> so that it will set GUIX_EXTENSIONS_PATH to
> $profile/share/guix/extensions automatically.  The idea is to update the
> format of the “channels.scm” file to allow for the installation of extra
> packages into the “guix pull” profile (by default that’s
> ~/.config/guix/current).

...because yeah that's the aim. :-)  Provide extensions as channels.


Cheers,
simon