How to load setting values from a Java properties file?

Question

Is there a way for me to dynamically load a setting value from a properties file?

I mean, instead of hardcoding into build.sbt

name := "helloWorld"

Have some application.properties file with

name=helloWorld

And then, in the build.sbt file, have name := application.properties["name"] (last example is purely schematic, but I hope the idea was clear)

Answer 1

You can create a setting key which holds properties read from a file.

import java.util.Properties

val appProperties = settingKey[Properties]("The application properties")

appProperties := {
  val prop = new Properties()
  IO.load(prop, new File("application.properties"))
  prop
}

name := appProperties.value.getProperty("name")