Re: org-babel-execute:dot -- why doesn't this work?

[Éibhear <eibhear.geo@gmail.com>]

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On 23/10/15 18:43, Matt Price wrote:
> 
> 
> On Fri, Oct 23, 2015 at 8:27 AM, Éibhear <eibhear.geo@gmail.com 
> <mailto:eibhear.geo@gmail.com>> wrote:
> 
> Matt Price <moptop99 <at> gmail.com <http://gmail.com>> writes:
> 
>> 
>> 
>> 
>> On Thu, Sep 24, 2015 at 7:10 AM, Matt Price <moptop99 <at>
> gmail.com <http://gmail.com>> wrote:
>> 
>> 
>> On Thu, Sep 24, 2015 at 12:00 AM, Nick Dokos <ndokos <at>
>> gmail.com <http://gmail.com>> wrote: Matt Price <moptop99 <at>
>> gmail.com <http://gmail.com>> writes:
>> 
>> 
>> 
>> -----
>> 
>> it looks about right until the very end; Manually running "dot
> /tmp/babel-2749DTL/dot-2749Nkt -Tpng -o 
> /home/matt/example-diagram.png" from a shell works fine. However,
> the result of:(org-babel-eval     (concat cmd         " "
> (org-babel-process-file-name in-file)         " " cmdline " -o "
> (org-babel-process-file-name out-file)) "")
>> 
>> is "nil".  Any idea why that might be?
>> 
>> 
>> 
>> Just a quick addendum.  Pausing during debugging and running
> (with-temp-file in-file )(org-babel-eval  "dot 
> /tmp/babel-2749DTL/dot-2749Nkt -Tpng -o 
> /home/matt/example-diagram.png"  "")
>> 
>> from a scratch buffer also works.  So I am really confused --
>> maybe there
> is something wrong with ob-dot itself?
>> 
>> 
>> 
>> 
>> Again, many thanks,
>> 
>> Matt
>> 
>> 
>> 
>> 
>> 
>> 
>> 
> 
> Hi Matt,
> 
> Did you get this worked out?
> 
> Thanks,
> 
> Éibhear
> 
> 
> hmm.  It looks like maybe I didn't -- I confess I'd forgotten about
> this old email.  Looks like I just generated the diagram from a
> scratch buffer, as described in my email.  Sorry I didn't get
> further!
> 
> Matt
> 

No problems.

I've determined tonight that it was working fine in org 8.2.10, but
the problem you report is in org 8.3.1. There are many changes in
ob-core.el, but little in ob-dot.el or ob-eval.el, so further
investigation is required. I'll continue plugging. I really like
building graphs using dot through org-mode, so I'd love to see this
fixed (e.g. I had to revert to LibreOffice Draw today!).

Thanks,

Éibhear

- -- 
Éibhear Ó hAnluain
Dublin, Ireland.
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