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Re: [tycho-user] Building a documentation index with Tycho 
I think there is still a room for improvement there. For example, I
think it would be useful to be able to resolve content of the
application to run from p2, similar to how this is done in TestMojo.
I am not sure we have direct way to implement this right now, i.e. the
code to create eclipse installation needs to be refactored out of
TestMojo to make this possible.

--
Regards,
Igor

On 11-12-01 3:45 AM, Sievers, Jan wrote:

the building blocks for creating a mojo which calls a (forked)
eclipse application should already be there (P2ApplicationLauncher).

For example see
https://github.com/sonatype/tycho-extras/blob/master/tycho-p2-extras-plugin/src/main/java/org/eclipse/tycho/plugins/p2/extras/PublishFeaturesAndBundlesMojo.java

 Extending the OSGi runtime with additonal bundles should also be
possible be registering a plexus component implementing

http://git.eclipse.org/c/tycho/org.eclipse.tycho.git/tree/tycho-p2/tycho-p2-facade/src/main/java/org/eclipse/tycho/p2/facade/internal/TychoP2RuntimeMetadata.java

 Regards Jan



-----Original Message-----
From: tycho-user-bounces@xxxxxxxxxxx [mailto:tycho-user-bounces@xxxxxxxxxxx] On Behalf Of Marc-Andre Laperle
Sent: Donnerstag, 1. Dezember 2011 07:46
To: Tycho user list
Subject: Re: [tycho-user] Building a documentation index with Tycho

Hi Igor,

Thank you for the quick response. Yes I was able to make it work. It
works either by making the plugin part of Tycho (using tycho group id
and parent) or as a "separate/external" plugin. It's basically a
stripped down version of the TestMojo class and the code is quite
simple. So, making this kind of extension seems easy enough to me. The
hardest part really was to learn about Maven, Tycho, PDE Build and the
Equinox Launcher all at the same time.

I think providing a generic mojo to execute eclipse applications would
great! But one problem I see with this approach is that the user would
have to manually configure the dependencies of the application. For
example, antRunner needs org.apache.ant and org.eclipse.help.base so the
user would have to configure the plugin in the POM in a way to include
the dependencies. The user would just "have to know" which bundles are
needed for each Eclipse application. That or the mojo could just add
everything in p2/bundles... but I'm not sure how efficient that would
be. So the way I see it, making a generic mojo will certainly allow
other use cases (applications) in the future but it also puts more
burden on the configuration the user has to do. Having a very specific
mojo to build a documentation index makes it very easy to use since it
can make some assumptions for the user, for example it can have the ant
dependencies hard-coded inside the mojo. Also, with the specific mojo,
we could get rid of the user-provided ant build file
(customBuildCallbacks.xml) and move the two simple parameters (manifest
and destination) to the plugin configuration then create the ant file on
the fly. So I guess this is about great flexibility versus ease of use.
I'd like to hear your thoughts on that before creating a bugzilla and
contributing code.

Regards,

Marc-Andre

On 11/29/2011 4:30 PM, Igor Fedorenko wrote:

Yes, this sounds about right. I am curious to know if you were able to
make it work and if there is anything we can provide in Tycho code to
make this sort of extensions easier to implement. Or maybe we can
provide generic mojo to execution eclipse applications...

--
Regards,
Igor

On 11-11-29 1:16 PM, Marc-Andre Laperle wrote:

Hi everyone,

I'm new to Maven and Tycho. I would like to build the index for
documentation using Tycho (for CDT). The steps for doing this with PDE
build are described here:
http://help.eclipse.org/indigo/index.jsp?topic=%2Forg.eclipse.platform.doc.isv%2Fguide%2Fua_help_setup_preindex.htm



Basically Eclipse's antRunner application needs to be used to execute a
Ant task, build.index. Has anyone tried to achieve something similar
with Tycho?

I attempted to wrap the execution of the application in a simple Ant
task that would then execute antRunner but this doesn't work since the
launcher can't find the dependencies. Instead, I created a Mojo that
works similarly to the TestMojo in tycho-surefire-plugin. It creates an
"Eclipse Installation" (including creating the config.ini) then executes
antRunner successfully.

Is this the right approach? If so, would the Tycho project be interested
in including this Mojo/plugin?

Thanks!

Marc-Andre

For reference, the bug I'm trying to fix:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=350828
and the Egit equivalent
https://bugs.eclipse.org/bugs/show_bug.cgi?id=350861
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