I don't mind if you want to keep the conversation here. But you chose not to, 
it would be great if you could keep this ML posted of the progress / new 
functionalities added. Thx.

On 2011-06-04, at 10:16 AM, Henrik Lindberg wrote:

> I don't think the features (save as ecore, or compare) are available in the 
> aggregator UI.
> 
> It is not difficult to do this in code though.
> 
> As you can see in https://bugs.eclipse.org/bugs/show_bug.cgi?id=304345 - the 
> p2 model is available as a separate bundle. In code you can load repositories 
> into the model, and then do what you want with the result (in your case -  
> save it in xmi format for comparison).
> 
> The issue https://bugs.eclipse.org/bugs/show_bug.cgi?id=306980 is about being 
> able to write a p2 ecore model as a p2 repo (i.e. the p2 meta data format). 
> This feature is great for performing manipulations of p2 repositories - load 
> them into a model, transform and write back as p2, but I don't think this is 
> required in your use case.
> 
> Adding the end-user operation to save as ecore, or indeed to perform the 
> comparison would be a great contribution to the aggregator project ;-)
> If you choose to go ahead and solve this in code (either just a quick and 
> dirty utility for your own use, or as a contribution), you can ask questions 
> on the b3 forum/newsgroup. I may have some example code to look at etc. (not 
> sure this is of interest to all on the p2-dev mailing list).
> 
> Regards
> Henrik Lindberg
> [email protected]
> 
> 
> 
> On Jun 3, 2011, at 9:41 PM, Henrich Kraemer wrote:
> 
>> Hi Henrik,
>> 
>> Thank you for your suggestion. This seems very promising and so I went for 
>> it:
>> 
>> 1. Starting with Eclipse 3.6.2 and installed additions for EMF-Compare and 
>> b3 aggregator via update sites mentioned on the Eclipse wiki. 
>> 
>> 2. Create a simple aggregator model in the Aggregator Model Editor:
>> 
>> <?xml version="1.0" encoding="UTF-8"?>
>> <aggregator:Aggregator xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI"; 
>> xmlns:aggregator="http://www.eclipse.org/b3/2010/aggregator/1.0.0"; 
>> label="first-test" buildRoot="build">
>> <configurations/>
>> <configurations operatingSystem="linux" windowSystem="gtk"/>
>> <contributions label="test">
>> <repositories location="C:\Components\Eclipse" mirrorArtifacts="false"/>
>> <repositories location="C:\Components\Equinox" mirrorArtifacts="false"/>
>> </contributions>
>> </aggregator:Aggregator>
>> 
>> 3. This model builds fine and when it is opened with the Aggregator Model 
>> Editor I see two p2 repos and their contents as a tree which is very cool.
>> 
>> --- 
>> 
>> This is were I got stuck as I could not figure out how to get an EMF file of 
>> the p2 repositories.
>> 
>> Message http://www.eclipse.org/forums/index.php/m/521750/ mentions the ecore 
>> model for p2 and the need to supporting saving these files. However I did 
>> not find a way to save these so that I can use the EMF compare on it. 
>> 
>> I tried selecting both p2 repo nodes in the Aggregator Model Editor and then 
>> compare via context menu entry 'Compare with -> Each Other' but that wasn't 
>> enabled. While this was not unexpected, that would be a great feature. 
>> 
>> From https://bugs.eclipse.org/bugs/show_bug.cgi?id=306980 it appears I may 
>> need a newer version of the aggregator and to write code. 
>> Is there an end user feature available in some newer version supporting this?
>> 
>> Thank you
>> 
>> Henrich
>> _______________________________________________
>> p2-dev mailing list
>> [email protected]
>> https://dev.eclipse.org/mailman/listinfo/p2-dev
> 
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