[Opensim-users] Mucking around with IAR asset UUIDs outside OpenSim: Will anything bad happen?

[Chris]

I believe this is happening due to a semi-recent change to how IARs 
handle asset loading. The new way of doing it is to not overwrite 
existing assets if the asset to be loaded shares the same UUID with an 
asset that already exists in the database (please correct me on this if 
I am wrong).

As for manually changing ID's in the IAR itself, I can't attest for the 
safeness of doing it that way. But I would imagine it would be 
relatively safe provided that the ID's are changed in all the spots that 
they are referenced since the IAR loader should be rejecting duplicate 
UUID load attempts if the situation should arise. Opensim devs, please 
correct me on this as well if I am incorrect =) I would be curious 
myself to know if this is a safe thing to do.


On 6/29/2012 1:43 AM, Edmund Edgar wrote:
> I have some situations where I want to export an object as an IAR,
> faff with the LSL code, and reimport it.
>
> This is working fine, except that sometimes the UUIDs of the scripts
> I've faffed with already exist in OpenSim, resulting in the new
> version not being imported.
> (I'm pretty sure that's what's happening - I've tried clearing the
> viewer cache and deleting stuff under bin/ScriptEngines and so forth.)
>
> To avoid this, I want to change the UUIDs of the scripts I've faffed
> with in my IAR every time I make a change to their content. I've tried
> this and it seems to work, but I as I don't understand the internals
> of this stuff I just wanted to check if there's some important thing
> I'm overlooking that will cause death and devastation to rain down on
> me and the unlucky people who use my IAR.
>
> Specifically what I do is:
> 1) Export IAR, untar it.
> 2) Faff with scripts.
> 3) For each script that's changed, make a new UUID by taking the md5
> sum of the contents, and sticking in some hyphens where they appear to
> belong.
> 4) Rename the <old UUID>_script.lsl under assets/ to use the new UUID.
> 4) Run sed on anything called ".xml" in the archive to change any
> reference to the old UUID to the new UUID.
> 5) Retar the IAR.
> 6) Reimport.
>
> This is the script I run to do it:
> https://github.com/sloodle/sloodle_development_tools/blob/master/opensim_sync/fixuuid.sh
>
> This seems to be working OK, but can anyone think of anything bad
> that's going to happen?
>


-- 
OpenSim: 9 Region Standalone on 0.7.4 Dev
Physics: Open Dynamics Engine
OS: Windows 7 (x64)
CPU: AMD Phenom II X4 840 3.2 GHz
Memory: 11 GB DDR3
Database: MySQL 5.1.11