How can i make an SBT key see settings for the current configuration? - scala

Question

I have the following build.sbt file:
version := "0.0.1"
version in Test := "0.0.1-DEBUG"
name <<= (version) apply { v:String => "demo-%s".format(v) }
and while the version seems to be right in the "test" configuration,
> show test:version
[info] 0.0.1-DEBUG
the name doesn't seem to look at the more-specific setting.
> show name
[info] demo-0.0.1
> show test:name
[info] demo-0.0.1
This is obviously a greatly-simplified example of what i'm really trying to do, but i think it illustrates the problem/misunderstanding.
EDIT (2013-07-04): What i'm really trying to do is change javaOptions in the IntegrationTest configuration (b/c we spin up a service and then run testing code against it, and i'd like the service being tested to run in a slightly sandboxed mode). Setting javaOptions in IntegrationTest is easy enough (and show it:java-options confirms), but doesn't actually get used by runner unless i go to the trouble of explicitly defining it:runner to use it:java-options. I would have expected *:runner to prefer the most-specific dependent vars.

Answer 1

Here's your Build.scala translated to use inConfig as suggested by #MarkHarrah:
import sbt._
import sbt.Keys._
object DemoBuild extends Build {
val mySettings = Seq(
name <<= version { v => "demo-%s".format(v) }
)
lazy val demo = Project(
id = "demo",
base = file("."),
settings = Project.defaultSettings ++ Seq(
organization := "com.demo",
scalaVersion := "2.10.0",
version := "0.0.1",
version in Test <<= version { v => "%s-DEBUG".format(v) }
) ++ mySettings
++ inConfig(Test)(mySettings)
)
}

Answer 2

I tried this in sbt 0.11 and 0.12.1 and it worked:
version := "0.0.1"
version in Test := "0.0.1-DEBUG"
name <<= (version) apply { v:String => "demo-%s".format(v) }
name in Test <<= (version in Test) apply { v:String => "demo-%s".format(v) }
UPDATE
If you're using a Build.scala file you can generalize this task across projects. Here's an example:
import sbt._
import sbt.Keys._
object DemoBuild extends Build {
lazy val demo = Project(
id = "demo",
base = file("."),
settings = Project.defaultSettings ++ Seq(
organization := "com.demo",
scalaVersion := "2.10.0"
) ++ addNameAndVersion("0.0.1", "demo")
)
def addNameAndVersion(projectVersion:String, projectName:String):Seq[sbt.Project.Setting[_]] = {
Seq(
version := projectVersion,
version in Test := projectVersion + "-DEBUG",
name <<= version.apply(s => "%s-%s".format(projectName, s)),
name in Test <<= (version in Test).apply(s => "%s-%s".format(projectName, s))
)
}
}