Add a coverageOff task to turn off coverage instrumentation

Author: gregsymons

src/main/scala/scoverage/ScoverageSbtPlugin.scala

@@ -15,6 +15,7 @@ class ScoverageSbtPlugin extends sbt.AutoPlugin {
 
   object ScoverageKeys {
     lazy val coverage = taskKey[Unit]("enable compiled code with instrumentation")
+    lazy val coverageOff = taskKey[Unit]("disable compiled code with instrumentation")
     lazy val coverageReport = taskKey[Unit]("run report generation")
     lazy val coverageAggregate = taskKey[Unit]("aggregate reports from subprojects")
     val coverageExcludedPackages = settingKey[String]("regex for excluded packages")
@@ -42,6 +43,10 @@ class ScoverageSbtPlugin extends sbt.AutoPlugin {
       enabled = true
     },
 
+    coverageOff := {
+      enabled = false
+    },
+
     coverageReport := {
       val target = crossTarget.value
       val s = (streams in Global).value

src/sbt-test/scoverage/coverage-off/build.sbt

@@ -0,0 +1,9 @@
+version := "0.1"
+
+scalaVersion := "2.10.4"
+
+libraryDependencies += "org.specs2" %% "specs2" % "2.3.13" % "test"
+
+ScoverageSbtPlugin.ScoverageKeys.coverageMinimum := 80
+
+ScoverageSbtPlugin.ScoverageKeys.coverageFailOnMinimum := true

src/sbt-test/scoverage/coverage-off/project/plugins.sbt

@@ -0,0 +1,15 @@
+// The Typesafe repository
+resolvers += "Typesafe repository" at "http://repo.typesafe.com/typesafe/releases/"
+
+//scoverage needs this
+resolvers += Classpaths.sbtPluginReleases
+
+{
+  val pluginVersion = System.getProperty("plugin.version")
+  if(pluginVersion == null)
+    throw new RuntimeException("""|The system property 'plugin.version' is not defined.
+                                 |Specify this property using the scriptedLaunchOpts -D.""".stripMargin)
+  else addSbtPlugin("org.scoverage" %% "sbt-scoverage" % pluginVersion)
+}
+
+

src/sbt-test/scoverage/coverage-off/src/main/scala/GoodCoverage.scala

@@ -0,0 +1,6 @@
+object GoodCoverage {
+
+  def sum(num1: Int, num2: Int) = {
+    num1 + num2
+  }
+}

src/sbt-test/scoverage/coverage-off/src/test/scala/GoodCoverageSpec.scala

@@ -0,0 +1,13 @@
+import org.specs2.mutable._
+
+/**
+ * Created by tbarke001c on 7/8/14.
+ */
+class GoodCoverageSpec extends Specification {
+
+  "GoodCoverage" should {
+    "sum two numbers" in {
+      GoodCoverage.sum(1, 2) mustEqual 3
+    }
+  }
+}

src/sbt-test/scoverage/coverage-off/test

@@ -0,0 +1,10 @@
+# run scoverage using the coverage task
+> clean
+> coverage
+> test
+# turn off coverage using the coverage-off task and recompile
+> clean
+> coverageOff
+> test
+# There should be no scoverage-data directory
+-$ exists target/scala-2.10/scoverage-data