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| Re: Cleanest way to allow plugin version ranges [message #496881 is a reply to message #496401] |
Wed, 11 November 2009 16:03   |
 Andrew Niefer
Messages: 990
Registered: July 2009 |
Senior Member |
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There are two approaches, the first is to change the feature to require
the plug-in instead of include it. This gets you the old update style
ranges of equivalent[1.2.3, 1.3.0), compatible[1.2.3, 2.0.0), or
greaterOrEqual. However, PDE/Build currently only builds included
plug-ins, not required ones. So you would need to build the bundles
separately and then have them (and their metadata) available to the
product build.
The other and perhaps simpler option is for the feature to have a p2.inf
beside the feature.xml. The p2.inf can add requirements to the feature,
and they replace the generated requirements that came from included
plug-ins if the name and namespace are the same.
feature: include org.eclipse.foo 0.0.0
p2.inf:
requires.1.namespace = org.eclipse.equinox.p2.iu
requires.1.name = org.eclipse.foo
requires.1.range = [1.0.0, 2.0.0)
If you are changing the requirement ranges for include features,
remember that the name for a feature's IU has ".feature.group" appended
to it.
http://wiki.eclipse.org/Equinox/p2/Customizing_Metadata
-Andrew
michael.sacarny@analog.com wrote:
> We have a 3.5 product built headlessly with PDE and p2.gathering=true
> that includes our Feature. The Feature includes several of our plugins,
> with version set to "0.0.0".
>
> The Product runs well, but I found that I could not update individual
> plugins via the Dropins folder. The updated plugins just seemed to be
> ignored. Making an update site of the plugins and then updating fails
> with error messages such as "Only one of the following can be installed
> at once" and "Can not satisfy dependency from <our Feature> to <updated
> plugins>.
>
> My conclusion is that the Feature.xml file (and subsequent metadata)
> specify exactly the version of the plugins created at build time, rather
> than allowing a range.
> What is the easiest, correct way to allow a range of plugin versions to
> be allowed in our Feature, so that the plugins in the Dropins folder
> would be accepted?
>
> Thanks,
> MSacarny
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