Re: [egit-dev] Calling Tycho / Maven Ninjas

[Igor Fedorenko <ifedorenko@xxxxxxxxxxxx>]

I think there are couple of problems.

First, <dependencies/> element in org.eclipse.egit.core and other module
pom.xml files tells Tycho to resolve jgit artifacts from *Maven*
repositories, but these artifacts are not available from any configured
repository. As a side note, Tycho 0.6.0 attempts to resolve Maven
artifacts from galileo and jgit p2 repositories. This is a bug and it is
fixed in Tycho 0.7.0-SNAPSHOT already.

Second, jgit p2 repository does not contain org.eclipse.jgit.junit
required by org.eclipse.egit.core.test.

I see two possible ways to fix this.

Either remove <dependencies/> element from all pom.xml files and provide
org.eclipse.jgit.junit via a p2 repo. Or, setup Maven repository (could
be a directory on local filesystem) and use it to share artifacts
between jgit and egit builds.

If you want, I can provide more details or patches for either of these
approaches.

--
Regards,
Igor

Chris Aniszczyk wrote:
> On Tue, Jan 19, 2010 at 11:02 PM, Igor Fedorenko
> <ifedorenko@xxxxxxxxxxxx> wrote:
> > To recap, using org.eclipse.egit.core as an example, here is how
> > Tycho resolves dependencies
> >
> >
> > * generates p2 dependency metadata for the project
> > * collects available installable units from local maven repository.
> > * collects available IUs from galileo p2 repository, as configured
> >  in the parent pom.xml
> > * generates p2 metadata for all org.eclipse.egit.core maven dependencies
> >  (again, configured in the parent pom) and adds to the available IUs
> > * invokes p2 resolver with project dependencies and available IUs
> > * downloads all required artifacts from galileo repo and caches them in
> >  maven local repository
> > * invokes equinox resolver to resolve actual project dependencies
>
> Thanks for the in depth explanation Igor, that makes sense.
>
> Any reason why Tycho wouldn't see IUs (in this case, the JGit
> feature.group and bundle) from a remote p2 repo?
>     https://build.eclipse.org/hudson/job/egit/16/console
>
> ---
> from the specified remote repositories:
>   galileo (http://download.eclipse.org/releases/galileo,
> releases=true, snapshots=true),
>   jgit (https://build.eclipse.org/hudson/job/jgit/lastSuccessfulBuild/artifact/org.eclipse.jgit.packaging/org.eclipse.jgit.updatesite/target/site,
> releases=true, snapshots=true),
>   central (http://repo1.maven.org/maven2, releases=true, snapshots=false)
> ---
>
> I have an inkling it has to deal with version numbers probably, just
> not sure how to debug Tycho.
>
> Cheers,