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Re: [p2-dev] Question about deleting a downloaded p2 plugin

Keep in mind that a plugin *may* exist in more than one 'parent feature'. So if you uninstall a feature and plugin doesn't (eventually) get removed, it might still be referenced from elsewhere. The p2 profile is the best place to look for these types of dependencies.

cheers,
ian


On Tue, Jan 15, 2013 at 7:31 AM, Mikhail Kalkov <mikhail.kalkov@xxxxxxxxxxxxxx> wrote:
Is it even possible to "install its parent feature again" without uninstalling the feature first?

Unless the plug-in in question was installed manually, uninstalling the parent feature should uninstall the plug-in too. Installing the parent feature again will install the plug-in again too. Right?

/Mikhail


From: "Pascal Rapicault" <pascal.rapicault@xxxxxxxxxxxx>
To: "P2 developer discussions" <p2-dev@xxxxxxxxxxx>
Sent: Tuesday, January 15, 2013 4:03:52 PM
Subject: Re: [p2-dev] Question about deleting a downloaded p2 plugin


If a plugin is deleted from disk, p2 will not download it again, nor will it check for its presence or validity.

As you guessed this is because the setup of p2 in Eclipse is taking a metadata-first approach to provisioning. What I mean here is that p2 knows from the content of the profile that the IU for the plugin is installed and it won’t question this.

There is no tool available to check the validity of an install, but it could be written as a side application.

 

HTH

 

From: p2-dev-bounces@xxxxxxxxxxx [mailto:p2-dev-bounces@xxxxxxxxxxx] On Behalf Of Josh Hester
Sent: January-15-13 9:23 AM
To: p2-dev@xxxxxxxxxxx
Subject: [p2-dev] Question about deleting a downloaded p2 plugin

 

If I delete a plugin from my plugins folder, and then go to install its parent feature again, will p2 download the plugin again?  Does it check to make sure a plugin actually exists or does it just rely on its metadata?  If it’s the latter is there any way to force it to check?

 

Thanks,

 

-Josh


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R. Ian Bull | EclipseSource Victoria | +1 250 477 7484
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