CODEWITHSUNDEEP
scalasbt
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Reputation: 2826

Is there a way to define the required sbt version in build.sbt?

In the build.sbt definition of a Scala project, is it possible to define the minimum version of sbt that is required to build the project?

Upvotes: 20

Views: 19194

Answers (1)

dk14
dk14

Reputation: 22374

project/build.properties allows you to force sbt to use particular version. If current version of installed sbt is different - sbt itself will download (if needed) the version you've specified there:

sbt.version=0.12.0

See, Hello for instance. So actually you may have installed several versions of sbt in your system - it's just jars, that placed in .sbt/boot/scala-{scala.version required by this sbt}/org.scala-sbt/sbt/{sbt.version} folder. Sbt executable actually looks for version specified in project/build.properties or (if it's not specified) highest version installed in the system.

P.S. From sbt-launcher perspective, sbt is only one dependency with small non-intersecting others like ansi.jar, so specifying the range of versions like [0.13.1, 0.13.8] have no much sense as it would be efective only for conflicting transitive deps. Otherwise it's enough to specify higher possible version (which would compile) - you may even choose some version that you already have (and update project's sbt that way).

Upvotes: 28

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