Document using the autoplugins version in a .scala build

[paddymahoney]

We are using a .scala build with many subprojects. Currently using the java_server archetype. I attempted to move to the autoplugin version 1.0.1-M1, but just couldn't find the right combination of imports to add the JavaServerAppPackaging, ie. enablePlugins(JavaServerAppPackaging).

The java_server archetype mentions "Use enablePlugins(JavaServerAppPackaging)" in the deprecation warning. I wasn't able to hit this warning due to the missing and broken imports.

If some handholding could be provided, I would submit a pull request to the README.md with some import guidelines (for the plugins and maybe the keys) in a .scala based build.

[muuki88]

• Can you provide a small sample project to reproduce the errors?
• Can you post the errors you get?

[paddymahoney]

https://github.com/paddymahoney/sbt-native-packager-autoplugins-dot-scala-build

Thanks for the push, I was able to figure it out in the sample project above. It will mostly be a good example of the imports to use in a .scala build. Let me know if I could have done the imports better.