CODEWITHSUNDEEP
scalajarsbt
Powers
Powers

Reputation: 19308

Using SBT to generate a JAR file name that doesn't include the Scala patch version

Here are the relevant lines from the build.sbt file:

sparkVersion := "2.2.0"
scalaVersion := "2.11.8"
version := "0.10.0"
artifactName := { (sv: ScalaVersion, module: ModuleID, artifact: Artifact) =>
  artifact.name + "_" + sv.full + "-" + sparkVersion.value + "_" + module.revision + "." + artifact.extension
}

The $ sbt package command generates a JAR file named spark-daria_2.11.8-2.2.0_0.10.0.jar.

I don't want the Scala patch version to be displayed in the generated JAR file. How can I update the artifactName code to generate a file named spark-daria_2.11-2.2.0_0.10.0.jar?

I don't want to hardcode it like this:

artifact.name + "_2.11-" + sparkVersion.value + "_" + module.revision + "." + artifact.extension

Upvotes: 3

Views: 3142

Answers (2)

Powers
Powers

Reputation: 19308

If you're using sbt assembly, you can use scalaBinaryVersion.value.

Here's an example.

assemblyJarName in assembly := s"${name.value}_${scalaBinaryVersion.value}-${sparkVersion.value}_${version.value}.jar"

You don't need to define the scalaBinaryVersion variable anywhere, it's magically available in your build.sbt file.

Upvotes: 1

Oleg Pyzhcov
Oleg Pyzhcov

Reputation: 7353

ScalaVersion#binary has up-to-minor version string.

The (somewhat unintuitive) name refers to Scala versions with a binary compatible guarantee and is commonly seen in scripts that do cross-building

Upvotes: 3

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