Ludovic Courtès (2015-10-16 11:16 +0300) wrote:

> Alex Kost <alezost@gmail.com> skribis:
>
>> From 79027171c9be2cececde951caf54758c4e1bb8f5 Mon Sep 17 00:00:00 2001
>> From: Alex Kost <alezost@gmail.com>
>> Date: Thu, 15 Oct 2015 22:10:32 +0300
>> Subject: [PATCH] emacs: Add "View graph" actions to system graph commands.
>>
>> * emacs/guix-command.el (guix-command-additional-execute-arguments,
>>   guix-command-special-executors): Add "View graph" actions for
>>   'dmd-graph' and 'extension-graph' commands.
>> * doc/emacs.texi (Emacs Popup Interface): Document "View graph" action.
>
> Excellent!
>
> Perhaps the documentation part should go in a separate commit since it’s
> not strictly related to the new commands?

Yes, I agree.  I have split it and pushed the part to add "View graph"
actions.

>> +Several commands (@command{guix graph}, @command{guix system dmd-graph}
>> +and @command{guix system extension-graph}) also have a ``View graph''
>> +action, which allows to view a generated graph using @command{dot}
>                       ^^^
> “which allows you to view”

Fixed.

>> +command (specified by @code{guix-dot-program} variable).  By default a
>> +PNG file will be saved in @file{/tmp} directory and will be opened
>
> Not directly related to this patch, but I wonder if this would work with
> a PDF opened with DocView?  That would allow people to zoom in etc.

Sure, you can generate any type of graph and open it inside or outside
emacs, whatever you want.  I have added an example for this case (in the
attached patch), so please report if it's not clear.  Thanks!