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Home » Eclipse Projects » P2 » How is installFeature action supposed to work?
How is installFeature action supposed to work? [message #899135] Mon, 30 July 2012 15:53 Go to next message
Thorsten Meinl is currently offline Thorsten MeinlFriend
Messages: 85
Registered: July 2009
Member
Hi all,

We are currently facing the problem of turning an implicitly installed
feature (from a feature dependency) into a root feature via an update to
the RCP application. I though that could be accomplished with the
installFeature touchpoint action, but this does not work, because the
feature to be installed by this action must be among the artifacts of
the current feature. This is obviously not the case, I have never seen
an feature.group being the artifact of another feature (is this even
possible?). This is a bit disappointing since this seemed to be the only
way of accomplishing the task. Two question:

1. Why is installFeature restricted to artifacts of the current IU
(which in almost all cases does not make sense I believe)?
2. Is there another way of turning a non-root IU into a root IU without
explicitly installing the IU?

The overall goal is to make the non-root IU uninstallable, which isn't
possible if it isn't a root IU (only).

Cheers,

Thorsten
Re: How is installFeature action supposed to work? [message #899306 is a reply to message #899135] Tue, 31 July 2012 12:30 Go to previous messageGo to next message
Henrik Lindberg is currently offline Henrik LindbergFriend
Messages: 2509
Registered: July 2009
Senior Member
We had the same/similar issue in cloudsmith / geppetto @ github. Our
solution was to ship a "run once" bundle that used the p2 API to make
the modifications.

Regards
- henrik

On 2012-30-07 17:53, Thorsten Meinl wrote:
> Hi all,
>
> We are currently facing the problem of turning an implicitly installed
> feature (from a feature dependency) into a root feature via an update to
> the RCP application. I though that could be accomplished with the
> installFeature touchpoint action, but this does not work, because the
> feature to be installed by this action must be among the artifacts of
> the current feature. This is obviously not the case, I have never seen
> an feature.group being the artifact of another feature (is this even
> possible?). This is a bit disappointing since this seemed to be the only
> way of accomplishing the task. Two question:
>
> 1. Why is installFeature restricted to artifacts of the current IU
> (which in almost all cases does not make sense I believe)?
> 2. Is there another way of turning a non-root IU into a root IU without
> explicitly installing the IU?
>
> The overall goal is to make the non-root IU uninstallable, which isn't
> possible if it isn't a root IU (only).
>
> Cheers,
>
> Thorsten
>
Re: How is installFeature action supposed to work? [message #899357 is a reply to message #899306] Tue, 31 July 2012 14:24 Go to previous messageGo to next message
Thorsten Meinl is currently offline Thorsten MeinlFriend
Messages: 85
Registered: July 2009
Member
Hi Hendrik,

Could you point me to or send me more details on how you did this?

Thanks,

Thorsten

Am 31.07.2012 14:30, schrieb Henrik Lindberg:
> We had the same/similar issue in cloudsmith / geppetto @ github. Our
> solution was to ship a "run once" bundle that used the p2 API to make
> the modifications.
>
> Regards
> - henrik
>
> On 2012-30-07 17:53, Thorsten Meinl wrote:
>> Hi all,
>>
>> We are currently facing the problem of turning an implicitly installed
>> feature (from a feature dependency) into a root feature via an update to
>> the RCP application. I though that could be accomplished with the
>> installFeature touchpoint action, but this does not work, because the
>> feature to be installed by this action must be among the artifacts of
>> the current feature. This is obviously not the case, I have never seen
>> an feature.group being the artifact of another feature (is this even
>> possible?). This is a bit disappointing since this seemed to be the only
>> way of accomplishing the task. Two question:
>>
>> 1. Why is installFeature restricted to artifacts of the current IU
>> (which in almost all cases does not make sense I believe)?
>> 2. Is there another way of turning a non-root IU into a root IU without
>> explicitly installing the IU?
>>
>> The overall goal is to make the non-root IU uninstallable, which isn't
>> possible if it isn't a root IU (only).
>>
>> Cheers,
>>
>> Thorsten
>>
>
Re: How is installFeature action supposed to work? [message #899586 is a reply to message #899357] Wed, 01 August 2012 14:08 Go to previous message
Henrik Lindberg is currently offline Henrik LindbergFriend
Messages: 2509
Registered: July 2009
Senior Member
On 2012-31-07 16:24, Thorsten Meinl wrote:
> Hi Hendrik,
>
> Could you point me to or send me more details on how you did this?
>

The code for the "run once" is here:

https://github.com/cloudsmith/geppetto/blob/master/org.cloudsmith.geppetto.onetimeinstall/src/org/cloudsmith/geppetto/onetimeinstall/Activator.java

Hope that helps you.
- henrik

> Thanks,
>
> Thorsten
>
> Am 31.07.2012 14:30, schrieb Henrik Lindberg:
>> We had the same/similar issue in cloudsmith / geppetto @ github. Our
>> solution was to ship a "run once" bundle that used the p2 API to make
>> the modifications.
>>
>> Regards
>> - henrik
>>
>> On 2012-30-07 17:53, Thorsten Meinl wrote:
>>> Hi all,
>>>
>>> We are currently facing the problem of turning an implicitly installed
>>> feature (from a feature dependency) into a root feature via an update to
>>> the RCP application. I though that could be accomplished with the
>>> installFeature touchpoint action, but this does not work, because the
>>> feature to be installed by this action must be among the artifacts of
>>> the current feature. This is obviously not the case, I have never seen
>>> an feature.group being the artifact of another feature (is this even
>>> possible?). This is a bit disappointing since this seemed to be the only
>>> way of accomplishing the task. Two question:
>>>
>>> 1. Why is installFeature restricted to artifacts of the current IU
>>> (which in almost all cases does not make sense I believe)?
>>> 2. Is there another way of turning a non-root IU into a root IU without
>>> explicitly installing the IU?
>>>
>>> The overall goal is to make the non-root IU uninstallable, which isn't
>>> possible if it isn't a root IU (only).
>>>
>>> Cheers,
>>>
>>> Thorsten
>>>
>>
>
>
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