Scala is officially supported on Scalingo.
It uses sbt 0.11.0+.
$ ls Procfile build.sbt project src $ scalingo create scala-app $ git push scalingo master ... -----> Scala app detected -----> Building app with sbt -----> Running: sbt compile stage
The buildpack will detect your app as Scala if it has the project/build.properties and either .sbt or .scala based build config. It vendors a version of sbt and your popluated .ivy/cache into your container. The .ivy2 directory will be cached between builds to allow for faster build times.
In some cases, builds need to clean artifacts before compiling. If a clean build is necessary, configure builds to perform clean by setting
$ scalingo env-set SBT_CLEAN=true SBT_CLEAN has been set to true.
All subsequent deploys will use the clean task. To remove the clean task, unset
$ scalingo env-unset SBT_CLEAN SBT_CLEAN has been unset.
More details at https://github.com/Scalingo/scala-buildpack.