From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alex Sassmannshausen <alex.sassmannshausen@gmail.com>
Subject: Re: Graphs are cool
Date: Thu, 15 Oct 2015 10:28:10 +0200
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To: Ludovic =?utf-8?Q?Court=C3=A8s?= <ludo@gnu.org>
Cc: guix-devel <guix-devel@gnu.org>

That's… just insanely cool.

Alex

Ludovic Courtès writes:

> Hello!
>
> The ‘guix system’ command now supports two new sub-commands:
> ‘extension-graph’ and ‘dmd-graph’.  The former produces a Dot
> representation of the service extension graph, while the latter produces
> a Dot representation of the graph of dmd services (part of the
> documentation pasted below.)
>
> Comments welcome!
>
> Personally I think it’s pretty neat.  :-)
>
> Ludo’.
>
>
>    The ‘guix system’ command has even more to offer!  The following
> sub-commands allow you to visualize how your system services relate to
> each other:
>
> ‘extension-graph’
>      Emit in Dot/Graphviz format to standard output the “service
>      extension graph” of the operating system defined in FILE (*note
>      Service Composition::, for more information on service extensions.)
>
>      The command:
>
>           $ guix system extension-graph FILE | dot -Tpdf > services.pdf
>
>      produces a PDF file showing the extension relations among services.
>
> ‘dmd-graph’
>      Emit in Dot/Graphviz format to standard output the “dependency
>      graph” of dmd services of the operating system defined in FILE.
>      *Note dmd Services::, for more information and for an example
>      graph.