Listener for plugin install/removal/etc?

James Dumay

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Nov 9, 2016, 4:12:14 PM11/9/16

to Jenkins Developers, Vivek Pandey

Hi all,

Is there a Listener we could use to listen for install/remove/etc events from the PluginManager? We have a cache that we'd like to invalidate every time the state of the plugin system changes.

Thanks,

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James Dumay

Product Manager

CloudBees, Inc.

Skype: jdumaycb Twitter: i386

Stephen Connolly

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Nov 9, 2016, 4:29:33 PM11/9/16

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There is a listener for addition, there is currently no removal or update without a restart

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Daniel Beck

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Nov 9, 2016, 5:20:50 PM11/9/16

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> On 09.11.2016, at 22:29, Stephen Connolly <stephen.al...@gmail.com> wrote:
>
> there is currently no removal or update without a restart

And those events could not be trusted anyway, as users could just disable or remove plugins manually by modifying the file system.

James Dumay

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Nov 9, 2016, 5:38:45 PM11/9/16

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Do you know what it is called?

James Dumay

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Nov 9, 2016, 5:39:13 PM11/9/16

to Jenkins Developers, m...@beckweb.net

From my understanding removing from the FS would break a bunch of things right?

Daniel Beck

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Nov 9, 2016, 5:57:07 PM11/9/16

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> On 09.11.2016, at 23:39, James Dumay <jdu...@cloudbees.com> wrote:
>
> From my understanding removing from the FS would break a bunch of things right?

No. Shut down Jenkins, remove a plugin .jpi file, or create a plugin .jpi.disabled file, and start Jenkins again. Not really listenable (unless you want Jenkins to record plugins and compare, sending delayed notifications, but that's something your plugin can easily do itself).

James Dumay

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Nov 9, 2016, 6:29:53 PM11/9/16

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Right. We just needed to invalidate a cache that wouldn't survive restart anyway. Stephen pointed us to hudson.ExtensionListListener which seems to do the trick in this case (we need to invalidate when the list of extensions changes).

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