[featrure] Fatjar support

[TobseF]

The application layout with bin, conf and lib is good for developing or using it inside Docker. But I would prefer to have the option for a fat-jar with all dependencies. This makes it easier to handle to just need to download a single file. And execution is simple because I do not need to specify the classpath.

My final goal is to compile it to a native image with GraalVM, so distribution is also independent from the jvm.

I already played around with the config of the maven-assembly-plugin.
I added the jar-with-dependencies to the configuration but was not able to get it working:

<descriptorRefs>
    <descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
<archive>
<manifest>
    <mainClass>com.github.alexisjehan.mvncheck.Application</mainClass>
</manifest>
</archive>

Of course, I can understand that this is not a must-have feature, and It may be additional work to support two assembly modes.

[AlexisJehan]

Hello,
Even if I didn't thought about it, of course this is a great idea.

I had a look, and I identified two problems with it:

• The Maven Resolver implementation is based on Eclipse Sisu (which is based on Google Guice) and that doesn't work well inside the JAR with dependencies.
• The init.gradle file from the classpath couldn't be passed as an argument anymore to Gradle.

Solutions:

• Migrate from Eclipse Sisu to the new Supplier implementation of Maven Resolver (will be compliant with the version 2 in the future)
• Write the content of the init.gradle file to a temporary file that can be passed to Gradle

[AlexisJehan]

Please give it a try and feel free to report me any feedback in case you encounter some issue with it!

[AlexisJehan]

Released in 1.7.0.