When using the Scala Mill build tool, if you want to create a “fat jar” file that contains all of the classes from your application and all of its dependencies, use the Mill assembly command.
For example, I have a project named RssAtomReader, so to create a fat jar file I use this assembly command:
$ mill RssAtomReader.assembly
While Mill currently doesn’t show the output of that command — hopefully it will in the future — you can find the fat jar file at this location:
./out/RssAtomReader/assembly/dest/out.jar
Resource files
If you have any resource files that your application needs, place them in a resources folder at the same level as your src folder. This tree command shows what I mean:
$ tree . . ├── HelloWorld │ ├── lib │ │ └── stringutils_2.12-1.0.jar │ ├── resources │ │ └── application.conf │ └── src │ └── main │ └── scala │ └── hello │ └── Hello.scala ├── build.sc
This is different than the typical Maven/SBT directory structure, but I just tested it with the Mill assembly command and it places the resource file in the fat jar file it creates.
