Re: [ANN] Emacs-Guix 0.4

[Alex Kost]

Ludovic Courtès (2018-05-23 17:30 +0200) wrote:

> Hello!
>
> Maxim Cournoyer <address@hidden> skribis:
>
>> Alex Kost <address@hidden> writes:
>>
>>> Hello, Emacs-Guix (Emacs interface for GNU Guix) version 0.4 has been
>>> released.  If you are not familiar with it yet, you may start with:
>>> ‘guix package -i emacs-guix’ and "M-x guix-about".
>>
>> Just wanted to say thank you for this new feature packed release! I look
>> forward to trying it out :)
>
> +1  I just tried it out and these new features are awesome, as usual!
>
> ‘guix-all-services’ is very cool!  (It shows that we lack descriptions
> for roughly a third of the services; if you’re reading along, consider
> helping out.  :-))
>
> I think ‘guix-dependent-packages’ is going to be very useful.  I wonder
> if we could have ‘C-u guix-dependent-packages’ list only packages that
> are direct dependents?  That would be helpful in some situations.

I agree!  Is there a shell command for this?  I mean I'd like to know
what Guile code can do this :-)

Currently, the following code is used to get dependent packages:

    (with-store store
      (run-with-store store
        (mlet %store-monad ((edges (node-back-edges %bag-node-type
                                                    (all-packages))))
          (return (node-transitive-edges packages edges)))))

-- 
Alex