GNU bug report logs - #27907
[PATCH] graph: Provide access to the package record in the emit

Previous Next

Full log

View this message in rfc822 format

From: ludo <at> gnu.org (Ludovic Courtès)
To: Roel Janssen <roel <at> gnu.org>
Cc: 27907 <at> debbugs.gnu.org
Subject: [bug#27907] [PATCH] graph: Provide access to the package record in the emit
Date: Sat, 26 Aug 2017 10:02:53 +0200

Roel Janssen <roel <at> gnu.org> skribis:

> Ludovic Courtès writes:
>
>> Roel Janssen <roel <at> gnu.org> skribis:
>>
>>> Oops!  I am sorry about this.  Would it not break if we include a check for whether
>>> the node type is a package or not.  Then, non-package node types are
>>> handled the “old way” and packages are handled the “new way”.
>>>
>>> I think we cannot have a generic way of exposing the specifics of a node
>>> type, so if we need to expose more information for the other node types,
>>> we have to add a type-specific implementation.
>>
>> Actually, we might need to discuss the specifics of why you wanted to do
>> it in the first place.  :-)
>>
>> It is to pass extra rendering info to the backends?  (It would be
>> helpful for instance to adjust the node color or size depending on
>> certain parameters such as its size or number of dependents.)
>
> Not necessarily rendering information, even though it could improve the
> displayment of packages like you say.  I'd like to export more
> information to a graph database, so that the packages can be searched,
> explored and linked to in a graph that also contains stuff like how
> programs were run and what files that run produced.
>
> So, this is essentially an interoperability thing for communicating with
> other systems.

So I think an option would be to pass an extra property alist to the
‘emit-node’ and ‘emit-edge’ procedures of the backend.  The node type
would produce that alist and it would be up to the backend to make sense
of it.  Something along these lines.  WDYT?

Ludo’.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.