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P2 director and update sites used for provisioning [message #1783788]

Sat, 17 March 2018 11:19

Alex Mising name

Messages: 149
Registered: March 2010

Senior Member

Can P2 director pre-configure repositories used for provisioning into the installation? When I run the org.eclipse.equinox.p2.director application and use for instance:

-repository http://download.eclipse.org/releases/oxygen,http://download.eclipse.org/tools/cdt/releases/9.4,http://download.eclipse.org/modeling/tmf/xtext/updates/composite/releases

...to install:

-installIU org.eclipse.platform.ide,org.eclipse.jdt.feature.group,org.eclipse.cdt.feature.group,org.eclipse.m2e.feature.feature.group,org.eclipse.egit.feature.group,org.eclipse.xtext.sdk.feature.group,org.eclipse.xtend.sdk.feature.group

...this is all fine and gets the new CDT 9.4.2 and the newer Xtext/Xtend 2.13 (from the added update site). But when I launch eclipse the update sites used (http://download.eclipse.org/tools/cdt/releases/9.4,http://download.eclipse.org/modeling/tmf/xtext/updates/composite/releases) are treated inconsistently. When I go to "Preferences --> Install/Update --> Available Software Sites" I see:

- the CDT repository is present but disabled
- the Xtext/Xtend repository is missing altogether

Is it possible to get P2 director to have them both present and enabled? What controls this behaviour?

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Re: P2 director and update sites used for provisioning [message #1784027 is a reply to message #1783788]

Wed, 21 March 2018 17:46

Eclipse User

Those values are stored in the p2 profile settings, found in your installation under p2/org.eclipse.equinox.p2.engine/profileRegistry/<<PROFILE>>.profile/.data/.settings. There are two pref files, one for artifact repositories and the other for metadata repositories.

The p2 director doesn't seed these preferences from the provided repositories: I installed an IU from a local `file:`-based p2 repository and that location was not written out. Rather these values are seeded by p2 `addRepository()` touchpoints.

Any update sites added via the p2 UIs (like Install New Software) are added to these lists too.

If you're interested, you could submit a patch to the p2 director to add the repositories to the list. For example, with an argument like "-remember".

Brian.

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Re: P2 director and update sites used for provisioning [message #1784197 is a reply to message #1784027]

Fri, 23 March 2018 12:09

Alex Mising name

Messages: 149
Registered: March 2010

Senior Member

Hi Brian, thank you for your reply.

It seems like a reasonable feature and an easy-enough thing to do. I will take a jab at it when I'm ready.

I'll need to check if I need to re-certify my CLA as I haven't contributed in a while. I should also set up my development workspace as I no longer have it, there used to be a document describing how to do that for the Eclipse platform.

Either way I recall I had to find a sponsor to review/pull the change at some point. Would you be able to do that? What would be the proper developer mailing list to reach out to when I'm ready to work?

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Re: P2 director and update sites used for provisioning [message #1784324 is a reply to message #1784197]

Mon, 26 March 2018 18:56

Eclipse User

I'm not a committer on p2, so I can't help. I'd suggest posting to the p2-dev mailing list.

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