Add a generic task to get the major and minor scala version

build/src/main/scala/org/codeoverflow/chatoverflow/build/BuildUtils.scala

@@ -2,6 +2,8 @@ package org.codeoverflow.chatoverflow.build
 
 import java.io.File
 
+import sbt.{Def, Task}
+import sbt.Keys.scalaVersion
 import sbt.internal.util.ManagedLogger
 
 object BuildUtils {
@@ -64,4 +66,11 @@ object BuildUtils {
     else
       Seq("--release", "8") // please compile against Java 8
   }
+
+  /**
+   * A task that returns the major and minor version of the currently used version of scala, e.g. 2.12.
+   */
+  lazy val scalaMajorVersion: Def.Initialize[Task[String]] = Def.task {
+    scalaVersion.value.split('.').dropRight(1).mkString(".")
+  }
 }

keys.sbt

@@ -27,18 +27,16 @@ lazy val gui = TaskKey[Unit]("gui", "Installs GUI dependencies and builds it usi
 // Tasks
 
 import org.codeoverflow.chatoverflow.build.GUIUtility
+import org.codeoverflow.chatoverflow.build.BuildUtils.scalaMajorVersion
 import org.codeoverflow.chatoverflow.build.deployment.DeploymentUtility
 import org.codeoverflow.chatoverflow.build.plugins.{PluginCreateWizard, PluginUtility}
 
 create := new PluginCreateWizard(streams.value.log).createPluginTask(pluginFolderNames.value, PluginCreateWizard.getApiVersion.value)
 fetch := new PluginUtility(streams.value.log).fetchPluginsTask(pluginFolderNames.value, pluginBuildFileName.value,
   pluginTargetFolderNames.value, apiProjectPath.value)
-copy := new PluginUtility(streams.value.log).copyPluginsTask(pluginFolderNames.value, pluginTargetFolderNames.value,
-  scalaVersion.value.split('.').dropRight(1).mkString("."))
-deploy := DeploymentUtility.prepareDeploymentTask(streams.value.log,
-  scalaVersion.value.split('.').dropRight(1).mkString("."))
-deployDev := DeploymentUtility.prepareDevDeploymentTask(streams.value.log,
-  scalaVersion.value.split('.').dropRight(1).mkString("."), apiProjectPath.value)
+copy := new PluginUtility(streams.value.log).copyPluginsTask(pluginFolderNames.value, pluginTargetFolderNames.value, scalaMajorVersion.value)
+deploy := DeploymentUtility.prepareDeploymentTask(streams.value.log, scalaMajorVersion.value)
+deployDev := DeploymentUtility.prepareDevDeploymentTask(streams.value.log, scalaMajorVersion.value, apiProjectPath.value)
 gui := new GUIUtility(streams.value.log).guiTask(guiProjectPath.value, streams.value.cacheDirectory / "gui")