GNU bug report logs - #43477
[PATCH 0/1] guix: graph: Add 'plain' backend.

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#43477: closed ([PATCH 0/1] guix: graph: Add 'plain' backend.)
Date: Mon, 05 Oct 2020 08:04:01 +0000

[Message part 1 (text/plain, inline)]

Your message dated Mon, 05 Oct 2020 10:03:22 +0200
with message-id <87tuv95cc5.fsf <at> gnu.org>
and subject line Re: [bug#43477] Guix aliases?
has caused the debbugs.gnu.org bug report #43477,
regarding [PATCH 0/1] guix: graph: Add 'plain' backend.
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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43477: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=43477
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From: zimoun <zimon.toutoune <at> gmail.com>
To: guix-patches <at> gnu.org
Cc: zimoun <zimon.toutoune <at> gmail.com>
Subject: [PATCH 0/1] guix: graph: Add 'plain' backend.
Date: Thu, 17 Sep 2020 21:39:31 +0200

Dear,

I am always annoyed when I use "guix graph" because most of the time I run:

  guix graph htop | grep label

or something along these lines.  Instead, the patch avoids the grep part:

--8<---------------cut here---------------start------------->8---
$ ./pre-inst-env guix graph -b plain htop
htop <at> 3.0.2
autoconf <at> 2.69
perl <at> 5.30.2
m4 <at> 1.4.18
automake <at> 1.16.2
autoconf-wrapper <at> 2.69
guile <at> 2.0.14
pkg-config <at> 0.29.2
libffi <at> 3.3
bash-minimal <at> 5.0.16
libunistring <at> 0.9.10
libltdl <at> 2.4.6
libgc <at> 8.0.4
gmp <at> 6.2.0
bash <at> 5.0.16
readline <at> 8.0.4
ncurses <at> 6.2
--8<---------------cut here---------------end--------------->8---


It is then easier to pipe with other Guix commands, for example:

--8<---------------cut here---------------start------------->8---
$ guix build $(./pre-inst-env guix graph -b plain htop | grep bash)
substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
0.9 MB will be downloaded:
   /gnu/store/m4qpxmn9v0jrylgbkzwssh5avzwhqil6-bash-minimal-5.0.16-doc
   /gnu/store/fvhj74pghapbjvsvj27skvkra1by1965-bash-minimal-5.0.16
substituting /gnu/store/m4qpxmn9v0jrylgbkzwssh5avzwhqil6-bash-minimal-5.0.16-doc...
downloading from https://ci.guix.gnu.org/nar/lzip/m4qpxmn9v0jrylgbkzwssh5avzwhqil6-bash-minimal-5.0.16-doc ...
 bash-minimal-5.0.16-doc  290KiB     444KiB/s 00:01 [##################] 100.0%

/gnu/store/vk4r0x7baig8jnmsqrgrqpyq8qxr4gm3-bash-5.0.16-doc
/gnu/store/v1xc4405s7xilmwhhkdj8z55wa2wlr8y-bash-5.0.16-include
/gnu/store/87kif0bpf0anwbsaw0jvg8fyciw4sz67-bash-5.0.16
/gnu/store/m4qpxmn9v0jrylgbkzwssh5avzwhqil6-bash-minimal-5.0.16-doc
/gnu/store/fvhj74pghapbjvsvj27skvkra1by1965-bash-minimal-5.0.16
--8<---------------cut here---------------end--------------->8---


Note that the manual is not updated since, since I do not know how to extend
the relevant section.   Note also that "tests/guix-graph.sh" does not test any
of the backends.


All the best,
simon

zimoun (1):
  guix: graph: Add 'plain' backend.

 guix/graph.scm | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)


base-commit: 8d557d4167ea98dfbc200fd20f64b8da36da35a2
-- 
2.28.0

[Message part 3 (message/rfc822, inline)]

From: Ludovic Courtès <ludo <at> gnu.org>
To: zimoun <zimon.toutoune <at> gmail.com>
Cc: Ricardo Wurmus <rekado <at> elephly.net>, 43477-done <at> debbugs.gnu.org
Subject: Re: [bug#43477] Guix aliases?
Date: Mon, 05 Oct 2020 10:03:22 +0200

Hi,

zimoun <zimon.toutoune <at> gmail.com> skribis:

> On Fri, 25 Sep 2020 at 17:56, Ludovic Courtès <ludo <at> gnu.org> wrote:
>
>> What I meant to say was that, if we have other use cases, we can write
>> new commands or extend existing ones to cater to those needs.  That’s
>> how ‘guix size’, etc. came to life.  “Listing nodes” is not a use case
>> per se, but rather an means to an end; let’s focus on the ends.  :-)
>>
>> (Also, let’s avoid Unix arguments; the primary composition level in Guix
>> is Scheme, not byte streams on stdout.)
>
> Well, I am not sure yet if I agree or disagree with you. :-)
> I understand the arguments and I will not have time to write a v2
> which includes your suggestion; I am interested in listing the nodes
> for some ends, not by visualizing the graph in a non-X environment.
> Therefore, feel free to close this patch submission.

OK so I’m closing for now, but let’s reopen an issue if you or someone
else thinks we really need a list-node feature or something along these
lines.

Thanks,
Ludo’.

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