[Opensim-dev] Should the core OpenSim distribution carrymanyscripting languages?

Tue Jun 3 10:02:15 UTC 2008

I think setting up a CPAN is the way to go then.

It would be nice if we could distribute applications as well as modules
via this if possible (ie the Rex server, Tribal server, etc), or have it
setup  so those applications could utilise it.

Maybe a package manager ala apt may be the way to go - that gives us
flexibility to have multiple repositories (ie subscribe to the Rex repo,
DeepThink repo, etc)

Hrrrrrrm.

Adam

From: opensim-dev-bounces at lists.berlios.de
[mailto:opensim-dev-bounces at lists.berlios.de] On Behalf Of Michael
Wright
Sent: Tuesday, 3 June 2008 5:31 AM
To: opensim-dev at lists.berlios.de
Subject: Re: [Opensim-dev] Should the core OpenSim distribution
carrymanyscripting languages?

+1 too, I think we need to expand this to a more general "rule". And
when new modules etc are added, ask ourselves do they really belong in
the core. Or would they be better placed in a CPAN type repository. 

After our experience of trying adding custom features to the backend
commuincations/servers. I'm actually leaning towards questioning if the
backend servers should really even be part of the core. Or if we really
should just have a "framework" for creating backend systems in core. I
know this is most likely more extreme than most people's thoughts. But I
do believe its going to come up more and more in the future, unless we
only are ever going to support SL clone type applications. 

Dr Scofield <DrScofield at xyzzyxyzzy.net> wrote:

Chris Down wrote:
> +1 here.
>
> I agree with everything Justin has said.
> 
+1 here. particularly the python bit :-D

cheers,
dr scofield
> Regards
>
> Chris Down
> 
> 
>> -----Original Message-----
>> From: opensim-dev-bounces at lists.berlios.de [mailto:opensim-dev-
>> bounces at lists.berlios.de] On Behalf Of Justin Clark-Casey
>> Sent: 02 June 2008 01:44
>> To: opensim-dev at lists.berlios.de
>> Subject: [Opensim-dev] Should the core OpenSim distribution carry
>> manyscripting languages?
>>
>> Hi there,
>>
>> Last week, Kinoc was kind enough to write an implementation of Yield
>> Prolog where YP is translated into underlying C# for compilation (in
the
>> same manner as our current LSL support). This patch was included in
>> OpenSim in r4927.
>>
>> I have nothing against Prolog (admittedly I have never had the chance
to
>> pick up) and certainly nothing against Kinoc. However, I am concerned
>> that by including many scripting languages in the OpenSim core
>> distribution (if Prolog, why not Javascript, Ruby, Python, etc, etc.)
we
>> incur more negatives than positives. Firstly, I'm concerned that a
>> proportion of this code (particularly that which no core committer
has
>> an interest in) will at some point slip into decay, particularly if
the
>> original contributor has moved on to other things. We've already seen
>> this happen with other areas of the code, such as the MSSQL database
>> support.
>>
>> Secondly, if individual language modules do need to change in
response
>> to other OpenSim changes without a decay option (for example, in
order
>> that they can still compile), this places a higher burden on the core
>> committers and makes it more costly to enhance the codebase in
general.
>>
>> Thirdly, I'm concerned that the more code we have of this nature
>> (particular code which compiles script into c#), the more potential
>> security holes we have. This isn't too much of a concern right now
but
>> will be come more of an issue in the future.
>>
>> Therefore, I would argue that OpenSimulator should only include in
its
>> core distribution support for a few scripting languages. In my
opinion
>> these would be LSL, maybe C# and possibly one other (maybe Python).
>> Support for other languages would come as optional plugins, available
>> either directly from the author or from some satellite repository
>> (perhaps similar to Perl's CPAN or PHP's PEAR). I would personally
>> prefer to see the core OpenSim distribution kept relatively lean and
mean.
>>
>> If necessary, I am happy to make any necessary infrastructure changes
to
>> make language plugins possible/easier (which probably also means
making
>> much needed enhancements to the plugin system).
>>
>> What do other people think?
>>
>> Regards,
>>
>> --
>> justincc
>> Justin Clark-Casey
>> http://justincc.wordpress.com
>> _______________________________________________
>> Opensim-dev mailing list
>> Opensim-dev at lists.berlios.de
>> https://lists.berlios.de/mailman/listinfo/opensim-dev
>> 
>
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> 

-- 
dr dirk husemann ---- virtual worlds research ---- ibm zurich research
lab
SL: dr scofield ---- drscofield at xyzzyxyzzy.net ----
http://xyzzyxyzzy.net/
RL: hud at zurich.ibm.com - +41 44 724 8573 -
http://www.zurich.ibm.com/~hud/

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