bug#27261: guix package -u should warn about non-existent packages

[Ludovic Courtès]

Marius Bakke <address@hidden> skribis:

> Leo Famulari <address@hidden> writes:
>
>> On Mon, Jun 26, 2017 at 10:01:03AM +0200, Ludovic Courtès wrote:
>>> Could you check whether “guix package -A syncthing” shows it there?  The
>>> warning should appear as soon as we’re upgrading a package that’s
>>> missing.
>>
>> I get no results when I do `./pre-inst-env guix package -A syncthing`
>> from the repo where I removed qsyncthingtray.
>
> I just came across this today too on a GuixSD system. `guix package -u`
> warned that my not-yet-upstream "icedtea-web" package does not exist,
> but had no problem with "chromium" installed the same way.
>
> No GUIX_PACKAGE_PATH, and ~/.config/guix/latest is a symlink to a `guix
> pull` build. The packages were installed through `./pre-inst-env`.

Hmm it all depends on whether the packages are visible to Guix via
GUIX_PACKAGE_PATH.  Are you using the same Guix in both cases?  No
‘sudo’?

Ludo’.