From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mathieu Lirzin <mthl@openmailbox.org>
Subject: Re: New =?utf-8?B?4oCYZ3VpeCBncmFwaOKAmQ==?= command
Date: Thu, 27 Aug 2015 12:58:08 +0200
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In-Reply-To: <87io8164s0.fsf@gnu.org> ("Ludovic
	\=\?utf-8\?Q\?Court\=C3\=A8s\=22'\?\=
	\=\?utf-8\?Q\?s\?\= message of "Thu, 27 Aug 2015 00:53:03 +0200")
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To: Ludovic =?utf-8?Q?Court=C3=A8s?= <ludo@gnu.org>
Cc: Guix-devel <Guix-devel@gnu.org>

Nice job, It is really convenient to have such utility.

Does it sound feasible to produce different edge colors depending of the ty=
pe
of inputs?

ludo@gnu.org (Ludovic Court=C3=A8s) writes:

> =E2=80=98bag-emerged=E2=80=99
>      This is the package DAG, _including_ implicit inputs.
>
>      For instance, the following command:
>
>           guix graph --type=3Dbag-emerged coreutils | dot -Tpdf > dag.pdf
>
>      ...  yields this bigger graph:
>
>
>
>      At the bottom of the graph, we see all the implicit inputs of
>      GNU-BUILD-SYSTEM (*note =E2=80=98gnu-build-system=E2=80=99: Build Sy=
stems.).
>
>      Now, note that the dependencies of those implicit inputs=E2=80=94tha=
t is,
>      the =E2=80=9Cbootstrap dependencies=E2=80=9D (*note Bootstrapping::)=
=E2=80=94are not shown
>      here, for conciseness.
>
> =E2=80=98bag=E2=80=99
>      Similar to =E2=80=98bag-emerged=E2=80=99, but this time including al=
l the bootstrap
>      dependencies.

Not really important, but IMO it would be clearer to define bag-emerged
in terms of what bag is doing with something like this.

--8<---------------cut here---------------start------------->8---
=E2=80=98bag=E2=80=99=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20
     This is the package DAG, _including_ implicit inputs.=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20
=E2=80=98bag-emerged=E2=80=99=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20
     Similar to =E2=80=98bag=E2=80=99, but this time without all the bootst=
rap
     dependencies.

     For instance, the following command:=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20
          guix graph --type=3Dbag-emerged coreutils | dot -Tpdf > dag.pdf=20
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20
     [...]
--8<---------------cut here---------------end--------------->8---

What do you think?

--
Mathieu Lirzin