From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alex Kost <alezost@gmail.com>
Subject: Re: User-profile search paths should include system-profile
	directories
Date: Tue, 20 Sep 2016 17:25:21 +0300
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In-Reply-To: <7th99b9g0k.fsf@gmail.com> ("Carlos =?utf-8?Q?S=C3=A1nchez?= de
	La Lama"'s message of "Tue, 20 Sep 2016 09:39:23 +0200")
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To: Carlos =?utf-8?Q?S=C3=A1nchez?= de La Lama <csanchezdll@gmail.com>
Cc: guix-devel@gnu.org

Carlos S=C3=A1nchez de La Lama (2016-09-20 09:39 +0200) wrote:

> Hi,
>
>>> Is this the intended behaviour? I am wondering whether packages with
>>> search paths should include both the user-profile directories and the
>>> system-profile ones.
>>
>> I think you=E2=80=99re right.  This was discussed at
>> <http://bugs.gnu.org/20255>, leading to a patch (for GuixSD).
>>
>> However, we failed to build consensus around the approach of this patch,
>> so we did not apply it.  If you have ideas, please email
>> 20255@debbugs.gnu.org.  :-)
>
> what about something like:
>
> - /etc/profile
>   # [...]
>   GUIX_PROFILES=3D"/run/current-system/profile:$HOME/.guix-profile"
>   . /run/current-system/profile/etc/profile
>   # [...]
>   . "$HOME/.guix-profile/etc/profile"
>   # [...]
>
> - /run/current-system/profile/etc/profile
>   profiles=3D"${GUIX_PROFILES:=3D/gnu/store/<hashA>-profile}"
>   export PATH=3D"${profiles//:/\/bin}/bin ${profiles//:/\/sbin}/sbin"
>   # [...]
>
>
> - $HOME/.guix-profile/etc/profile
>   profiles=3D"${GUIX_PROFILES:=3D/gnu/store/<hashB>-profile}"
>   export ACLOCAL_PATH=3D"${profiles//:/\/share/aclocal}/share/aclocal"
>   # [...]
>
> That is, each profile adds all its search paths to all the profile roots
> passed in the colon separated variable GUIX_PROFILES. If GUIX_PROFILES
> is empty, it adds the search paths inside its own directory only (as
> until now).

I think it was mentioned somewhere in the bug discussion: this will not
work for some things.  For example, if a user has 'guile' in a system
profile, and several guile packages (but not 'guile' itself) in
~/.guix-profile, then GUILE_LOAD_PATH will include
"<system-profile>/share/guile/site/2.0" but not
"<user-profile>/share/guile/site/2.0".  That's why combining profiles
inside "guix package --search-paths" command looks like the only
solution.

--=20
Alex