GNU bug report logs - #78758
shepherd: 'herd graph' shows root node

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Package: guix; Reported by: burban@HIDDEN; dated Wed, 11 Jun 2025 14:55:03 UTC; Maintainer for guix is bug-guix@HIDDEN.

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From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN>
To: burban@HIDDEN
Subject: Re: bug#78758: shepherd: herd graph issue
In-Reply-To: <87ikkygm9e.fsf@HIDDEN> (burban@HIDDEN's message of "Sat, 
 14 Jun 2025 19:23:57 +0000")
References: <87wm9jpdnx.fsf@HIDDEN> <87tt4j5k9v.fsf@HIDDEN>
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Hi,

burban@HIDDEN writes:

> It would perhaps make everyone happy to add the root service in the
> graph only if #:requirement is empty.

I think it would be confusing.  It should either always show the =E2=80=98r=
oot=E2=80=99
node, or never show it.

Ludo=E2=80=99.
Information forwarded to bug-guix@HIDDEN:
bug#78758; Package guix. Full text available.
Changed bug title to 'shepherd: 'herd graph' shows root node' from 'shepherd: herd graph issue' Request was from Ludovic Courtès <ludo@HIDDEN> to control <at> debbugs.gnu.org. Full text available.

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From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN>
To: burban--- via Bug reports for GNU Guix <bug-guix@HIDDEN>
Subject: Re: bug#78758: shepherd: herd graph issue
In-Reply-To: <87wm9jpdnx.fsf@HIDDEN> (burban's message of "Tue, 10 Jun
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Hi,

burban--- via Bug reports for GNU Guix <bug-guix@HIDDEN> writes:

> I noticed that "herd graph" always creates a link to root, which IMO
> clobbers the picture (I can send pictures if that is allowed on this
> list or their source)

Yeah I wondered about that at the time but found that not having a clear
source node on the graph looked weird (and inaccurate).

So hmm, I don=E2=80=99t know!

Ludo=E2=80=99.
Information forwarded to bug-guix@HIDDEN:
bug#78758; Package guix. Full text available.

Message received at submit <at> debbugs.gnu.org:


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From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN>
To: burban--- via Bug reports for GNU Guix <bug-guix@HIDDEN>
Subject: Re: bug#78758: shepherd: herd graph issue
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Hi,

burban--- via Bug reports for GNU Guix <bug-guix@HIDDEN> writes:

> I noticed that "herd graph" always creates a link to root, which IMO
> clobbers the picture (I can send pictures if that is allowed on this
> list or their source)

Yeah I wondered about that at the time but found that not having a clear
source node on the graph looked weird (and inaccurate).

So hmm, I don=E2=80=99t know!

Ludo=E2=80=99.
Information forwarded to bug-guix@HIDDEN:
bug#78758; Package guix. Full text available.

Message received at submit <at> debbugs.gnu.org:


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From: burban@HIDDEN
To: bug-guix@HIDDEN
Subject: shepherd: herd graph issue
Date: Tue, 10 Jun 2025 20:03:30 +0000
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Hello,

I noticed that "herd graph" always creates a link to root, which IMO
clobbers the picture (I can send pictures if that is allowed on this
list or their source)

This is due to these lines in herd.scm (around line 782):

                          (if (memq 'root (live-service-provision service))
                              (live-service-requirement service)
                              (cons 'root (live-service-requirement service)))))

The line (live-service-requirement service) is enough to produce
an understandable dependency graph.

Sincerely.

-- 

Bernard
Acknowledgement sent to burban@HIDDEN:
New bug report received and forwarded. Copy sent to bug-guix@HIDDEN. Full text available.
Report forwarded to bug-guix@HIDDEN:
bug#78758; Package guix. Full text available.
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