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| Re: Using headless Buckminster to create p2 reporsitory with multiple versions [message #517244 is a reply to message #517228] |
Fri, 26 February 2010 16:26   |
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Hi John,
On 02/26/2010 05:11 PM, John wrote:
> Hi!
>
> In the Eclipse IDE from the popup of a feature I can select
> Export... -> Plug-in Development -> Deployable features.
> Then I can select the features (and plug-ins) I want to deploy and a
> destination directory.
> The I get a work p2 repository, than I can use as an update site.
> If I go ahead and change the version on some of the features selected
> earlier
> and possibly push the version number to the contained plug-ins,
> I can repeat the above procedure, use the same destination directory
> and I will now have a p2 repository containing both the old and the new
> versions.
>
> How can I accomplish this using headless Buckminster?
>
Not at present and I consider this a weakness. Can you please enter an enhancement request for this?
> I have created a my.site.feature representing the features I want in my
> p2 repository,
> which is what I'm effectively doing in the dialog as described above.
> I then execute headless the action site.p2 and get a working p2 repository.
> But I can't see that I can use an old destination for the headless build.
> The only part of the destination I have influence on is
> buckminster.output.root.
> But the actual site is created in
> ${buckminster.output.root}/my.site.feature_version-eclipse.f
> eature/site.p2.
> This is the folder that equivalates to the destination directory
> mentioned above.
>
> Is it possible to get headless Buckminster to generate a p2 repository
> containg also older versions?
> Or must it be done in some other way?
> Could somebody please help me out with hao to achieve this?
>
One way of doing this is to create an additional layer of directories and add composites:
<repository root>
compositeContent.xml
compositeArtifacts.xml
/build-a
content.jar
artifacts.jar
/plugins
/features
/binaries
/build-b
content.jar
artifacts.jar
/plugins
/features
/binaries
This is actually very common at eclipse.org. If you point to /eclipse/updates/3.6milestones for instance, you get a
composite that in turn contains all milestones.
A compositeContent.xml can look something like this:
<?xml version='1.0' encoding='UTF-8'?>
<?compositeMetadataRepository version='1.0.0'?>
<repository name='"My Update Site"'
type='org.eclipse.equinox.internal.p2.metadata.repository.Co mpositeMetadataRepository' version='1.0.0'>
<properties size='1'>
<property name='p2.timestamp' value='1267159479207'/>
</properties>
<children size='2'>
<child location='build-a'/>
<child location='build-b'/>
</children>
</repository>
The compositeArtifacts.xml is almost identical. Just replace "Metadata" with "Artifact"
HTH,
- thomas
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| Re: Using headless Buckminster to create p2 reporsitory with multiple versions [message #519716 is a reply to message #519445] |
Tue, 09 March 2010 18:24 |
 Carsten Reckord
Messages: 139
Registered: July 2009 |
Senior Member |
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Hi Bernhard and John,
I'm currently in the process of modularizing my build process to something more akin to maven, i.e. build a single plugin, test it, then
publish it to an integration site from where the other plugins can pick it up for their build.
The small ant snippet I use to publish the plugin to the site from a buckminster action should be easily adaptable to push a whole local
single-version site as produced by buckminster to a main site containing other versions.
The script currently has one noteworthy limitation: It will only publish the first fileset of the input path group since the p2 task I use
cannot handle Buckminster's path groups (hence the 2 actions grouped together in my cspex). I don't think that's a problem in your case
though, because the site.p2 action should return a single path.
HTH,
Carsten
On 08.03.2010 21:36, Bernhard Merkle wrote:
> Thanks John,
>
> today i stumbled exactly over the same problem :-)
>
> Bernhard.
>
> On 26.02.2010 18:46, John wrote:
>> Hi Thomas!
>>
>>
>> Thanks for the response. The enhancement request is here:
>>
>> https://bugs.eclipse.org/bugs/show_bug.cgi?id=304063
>>
>>
>> If I understand you correctly you suggest something in the line of
>> creating an aggregated repository. I've seen that suggested in the p2
>> documentation somewhere as a way to manage large update sites.
>>
>> I can of course create this using the Aggregator. But is it possible to
>> do it without manual intervention? I can only see this happen by running
>> a headless job creating the new p2 repository using the site.p2 action.
>> Then edit the Aggregator model to include the new site and trigger a
>> headless build of the aggregated site.
>>
>> This is of course doable, but are there some secret commands I can use
>> to update an exisiting p2 repository with the conents of the newly
>> generated p2 repository?
>>
>> I've found some commands in the p2 documentation, but they seem to be
>> more focuse on generating p2 metadata from other sources or install from
>> p2 repositories into an Eclipse target.
>>
>> Is there anything I can do to make this automated, without generating
>> the metadata files myself?
>>
>> Thanks.
>>
>> /John
>
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