Snyk for Scala

Snyk supports testing and monitoring Scala Projects that have their dependencies managed by sbt.

Features of Snyk for Scala

Some features might not be available, depending on your pricing plan. See pricing plans for more details.

The following summarizes the features of Snyk for Scala by package manager. In addition to these features, Snyk may offer more functionality related to the specific integration configurations.

Package managers / Features	CLI support	Git support	License scanning	Fix PRs
sbt	✔︎	✔︎	✔︎

How Snyk for Scala works

To scan your dependencies, you must ensure you have first installed the relevant package manager and that your project contains the supported manifest files.

Snyk scans Scala projects by running sbt plugins or examining your build.sbt and compares the versions of every direct and transitive dependency in your project against Snyk's Maven vulnerability database.

Snyk CLI for Scala Projects

The Snyk CLI uses the sbt-dependency-graph plugin, which has been included in sbt as a built-in plugin since sbt 1.4.

However, the recommended method of calling the plugin in sbt 1.4+ is not currently compatible with Snyk. Use the legacy method, addSbtPlugin() instead (see the following).

You will likely want to install sbt-dependency-graph as a global plugin so you can use it in any sbt project.

To do this, add the plugin dependency to ~/.sbt/0.13/plugins/plugins.sbt for sbt 0.13 or ~/.sbt/1.0/plugins/plugins.sbt for sbt 1.0+.

To add the plugin to a single Project only, update the project/plugins.sbt of your Project instead.

Regardless of which sbt version you are using, you must use the following command in the relevant plugins.sbt file:

addSbtPlugin("net.virtual-void" % "sbt-dependency-graph" % "0.10.0-RC1")

Do not use the addDependencyTreePlugin command which the sbt-dependency-graph plugin docs recommend for sbt 1.4+. This is incompatible with the Snyk CLI. Use the addSbtPlugin() command as given above.

For more details on installing sbt-dependency-graph for use with the Snyk CLI, see the article How to install the SBT dependency graph plugin to test Scala projects with Snyk CLI.

Git services for Scala Projects

Scala sbt Projects can be imported from any of the Git repositories that Snyk supports.

To test your Scala Projects using sbt as a package manager, Snyk analyzes your build.sbt file. To ensure that this works properly, you must have this file in your repository before importing your projects.

You can’t declare versions of dependencies in a file that is not accessible to Snyk via a Source Code Manager (SCM) integration, for example, Dependencies.scala.

• To ensure that your Scala dependencies are detected when you import your projects using an SCM integration, your build.sbt dependencies must be declared in a format that Snyk can detect, for example: "commons-io" % "commons-io" % "2.11.0".

• You can use a version declared in a variable if the variable is in the build.sbt file, for example:

  lazy val derbyVersion = "10.4.1.3"
  libraryDependencies ++= Seq(
    "org.apache.derby" % "derby" % derbyVersion
  ) 

For more details, see Scanning a remote repository using the Snyk Web UI.