Classpath resources inside one-jar packaged via sbt

Question

I have a project that is build using SBT which packages a single jar using the one-jar plugin. That project contains a bunch of json files in src/main/resources/fixture whic

Answer 1

one-jar packages your resources under the main dir in the output jar. when using sbt, I find it best to configure the packaging of resources myself. usually, I would do something like this:

unmanagedResources in Compile := Seq() //we don't want to add resources from "src/main/resources" to inner jar

mappings in oneJar += (file("src/main/resources/filename.json"),"path/to/resource/in/onejar")

so your resource filename.json will be packaged where you want it in the one-jar jar. when you want the resource at runtime, simply use:

Thread.currentThread.getContextClassLoader.getResourceAsStream("path/to/your/resource")

have a look at this post. it may help with how to package all the resources under src/main/resources...