Re: [tycho-user] Creating a shaded/"uber-jar?"

[Matthias Schoettle <eclipse@xxxxxxxxxxx>]

Hello,

We are trying to create an "uber-jar" as well (for a standalone 
application that uses EMF, i.e., there are a lot of dependencies to 
Eclipse plugins that are not in any Maven repository) and based on my 
understanding Tycho uses a system scope [1] for dependencies that it 
resolves through p2. The maven-shade plugin can't find those. The 
maven-dependency plugin, however, is able to resolve the dependencies 
found by Tycho, so it is possible to use the copy-dependencies goal for 
example. But it's not ideal.

What is the best way to handle a case like this?
Is the spring-boot-maven-plugin able to resolve those plugins?

Thanks,
Matthias

[1] https://stackoverflow.com/a/42420648

On 07.06.2019 21:47, Jay Jay Billings wrote:
> Matthias,
>
> Excellent! Thanks! I think this will help with some of our next steps.
>
> Jay
>
> On Fri, Jun 7, 2019 at 9:25 PM Matthias Sohn <matthias.sohn@xxxxxxxxx>
> wrote:
>
> > We used the maven-shade-plugin to build the jgit command line app:
> >
> > https://git.eclipse.org/r/plugins/gitiles/jgit/jgit/+/refs/changes/43/135143/2/org.eclipse.jgit.pgm/pom.xml#175
> >
> > We switched to the spring-boot-maven-plugin and now use nested jars
> > since we added Bouncycastle for signing support which is JCE and Eclipse
> > signed.
> > These signatures would break during shading and we didn't want to re-sign
> > the shaded jar
> > since the JCE signature is meant to be used for JCE providers only.
> >
> > See change https://git.eclipse.org/r/#/c/133417
> > <https://git.eclipse.org/r/#/c/133417/31/org.eclipse.jgit.pgm/pom.xml>
> > especially
> > https://git.eclipse.org/r/#/c/133417/31/org.eclipse.jgit.pgm/pom.xml
> >
> > here are the complete sources of the  pom.xml
> >
> > https://git.eclipse.org/r/plugins/gitiles/jgit/jgit/+/master/org.eclipse.jgit.pgm/pom.xml
> > and the shell script we use to start the command line application
> >
> > https://git.eclipse.org/r/plugins/gitiles/jgit/jgit/+/master/org.eclipse.jgit.pgm/jgit.sh
> >
> > -Matthias
> >
> > On Fri, Jun 7, 2019 at 11:03 PM Jay Jay Billings <jayjaybillings@xxxxxxxxx>
> > wrote:
> >
> > > FYI - Greg and I looked at this more. Something like this appears to work:
> > >
> > >              <plugin>
> > >                  <groupId>org.eclipse.tycho</groupId>
> > >                  <artifactId>tycho-p2-repository-plugin</artifactId>
> > >                  <version>${tycho-version}</version>
> > >                  <configuration>
> > >              <!--
> > >   <createArtifactRepository>false</createArtifactRepository>-->
> > >                      <includeAllDependencies>true</includeAllDependencies>
> > >                  </configuration>
> > >              </plugin>
> > >
> > >        <plugin>
> > >          <groupId>org.apache.maven.plugins</groupId>
> > >          <artifactId>maven-shade-plugin</artifactId>
> > >          <version>2.4.3</version>
> > >          <configuration>
> > >            <!-- put your configurations here -->
> > >          </configuration>
> > >          <executions>
> > >            <execution>
> > >              <phase>package</phase>
> > >              <goals>
> > >                <goal>shade</goal>
> > >              </goals>
> > >            </execution>
> > >          </executions>
> > >        </plugin>
> > >
> > > This produces a single shaded jar that appears to be correct, but I
> > > haven't tried it in a program yet.
> > >
> > > Jay
> > >
> > > On Fri, Jun 7, 2019 at 3:43 PM Jay Jay Billings <jayjaybillings@xxxxxxxxx>
> > > wrote:
> > >
> > > > Hello Tycho team!
> > > >
> > > > Does anyone have a suggestion for how to create a shaded/uber-jar of a
> > > > project and all of its dependencies? This would be comparable to using the
> > > > maven-shaded plugin. I have found one good reference for it on the mailing
> > > > list:
> > > >
> > > > https://www.eclipse.org/lists/tycho-user/msg05978.html
> > > >
> > > > Is that still the best way to do it?
> > > >
> > > > Here's our use case. Greg Watson and I are looking taking some of the
> > > > backend bundles from Eclipse PTP and Eclipse ICE to use in some new web
> > > > services we are building. These are Spring+Vaadin web applications, so it
> > > > would be easiest for us to just put a gigantic jar on the classpath.
> > > >
> > > > Any thoughts or suggestions?
> > > >
> > > > Best,
> > > > Jay
> > > >
> > > > --
> > > > Jay Jay Billings
> > > > Twitter Handle: @jayjaybillings
> > >
> > >
> > > --
> > > Jay Jay Billings
> > > Twitter Handle: @jayjaybillings
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>
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