Merge pull request #129 from RichardBradley/multi-project-coverage

#87 Fix 'coverage' command for multi-project builds

Author: sksamuel

Diff for: README.md

@@ -14,7 +14,7 @@ discussion on scoverage.
 
 Add the plugin to your build with the following in project/plugins.sbt:
 ```scala
-addSbtPlugin("org.scoverage" % "sbt-scoverage" % "1.3.0")
+addSbtPlugin("org.scoverage" % "sbt-scoverage" % "1.3.1")
 ```
 
 Then run the your tests with coverage enabled by entering:

Diff for: src/main/scala/scoverage/ScoverageSbtPlugin.scala

@@ -45,8 +45,17 @@ object ScoverageSbtPlugin extends AutoPlugin {
     coverageCleanSubprojectFiles := true
   )
 
-  private def toggleCoverage(status:Boolean): State => State =
-    state => Project.extract(state).append(Seq(coverageEnabled := status), state)
+  /**
+   * The "coverage" command enables or disables instrumentation for all projects
+   * in the build.
+   */
+  private def toggleCoverage(status:Boolean): State => State = { state =>
+    val extracted = Project.extract(state)
+    val newSettings = extracted.structure.allProjectRefs map { proj =>
+      coverageEnabled in proj := status
+    }
+    extracted.append(newSettings, state)
+  }
 
   private lazy val coverageReport0 = Def.task {
     val target = crossTarget.value

Diff for: version.sbt

@@ -1 +1 @@
-version in ThisBuild := "1.3.0"
+version in ThisBuild := "1.3.1"