Added highlighting as explicit option

Author: sksamuel

build.sbt

@@ -2,7 +2,7 @@ name := "sbt-scoverage"
 
 organization := "org.scoverage"
 
-version := "0.99.2.1"
+version := "0.99.2.2"
 
 scalaVersion := "2.10.4"
 

src/main/scala/scoverage/ScoverageSbtPlugin.scala

@@ -16,6 +16,7 @@ class ScoverageSbtPlugin extends sbt.Plugin {
     val excludedPackages = SettingKey[String]("scoverage-excluded-packages")
     val minimumCoverage = SettingKey[Int]("scoverage-minimum-coverage")
     val failOnMinimumCoverage = SettingKey[Boolean]("scoverage-fail-on-minimum-coverage")
+    val highlighting = SettingKey[Boolean]("scoverage-highlighting", "enables range positioning for highlighting")
   }
 
   import ScoverageKeys._
@@ -41,6 +42,7 @@ class ScoverageSbtPlugin extends sbt.Plugin {
 
         minimumCoverage := 0, // default is no minimum
         failOnMinimumCoverage := false,
+        highlighting := true,
 
         scalacOptions in ScoverageCompile <++= (crossTarget in ScoverageTest, update, excludedPackages in ScoverageCompile) map {
           (target, report, excluded) =>
@@ -50,13 +52,14 @@ class ScoverageSbtPlugin extends sbt.Plugin {
               case Some(classpath) =>
                 Seq(
                   "-Xplugin:" + classpath.getAbsolutePath,
-                  "-Yrangepos",
                   "-P:scoverage:excludedPackages:" + Option(excluded).getOrElse(""),
                   "-P:scoverage:dataDir:" + target.getAbsolutePath + "/scoverage-data"
                 )
             }
         },
 
+        scalacOptions in ScoverageCompile ++= (if (highlighting.value) List("-Yrangepos") else Nil),
+
         sources in ScoverageTest <<= (sources in Test),
         sourceDirectory in ScoverageTest <<= (sourceDirectory in Test),
         resourceDirectory in ScoverageTest <<= (resourceDirectory in Test),