Add support for Maven profiles from the SBT plugin

plugin/src/main/scala-2.10/coursier/CoursierPlugin.scala

@@ -18,6 +18,7 @@ object CoursierPlugin extends AutoPlugin {
     val coursierCachePolicies = Keys.coursierCachePolicies
     val coursierTtl = Keys.coursierTtl
     val coursierVerbosity = Keys.coursierVerbosity
+    val mavenProfiles = Keys.mavenProfiles
     val coursierSourceRepositories = Keys.coursierSourceRepositories
     val coursierResolvers = Keys.coursierResolvers
     val coursierSbtResolvers = Keys.coursierSbtResolvers
@@ -64,6 +65,7 @@ object CoursierPlugin extends AutoPlugin {
     coursierCachePolicies := CachePolicy.default,
     coursierTtl := Cache.defaultTtl,
     coursierVerbosity := Settings.defaultVerbosityLevel,
+    mavenProfiles := Set.empty,
     coursierSourceRepositories := Nil,
     coursierResolvers <<= Tasks.coursierResolversTask,
     coursierSbtResolvers <<= externalResolvers in updateSbtClassifiers,

plugin/src/main/scala-2.10/coursier/Keys.scala

@@ -20,6 +20,8 @@ object Keys {
 
   val coursierVerbosity = SettingKey[Int]("coursier-verbosity")
 
+  val mavenProfiles = SettingKey[Set[String]]("maven-profiles")
+
   val coursierSourceRepositories = SettingKey[Seq[File]]("coursier-source-repositories")
   val coursierResolvers = TaskKey[Seq[Resolver]]("coursier-resolvers")
   val coursierSbtResolvers = TaskKey[Seq[Resolver]]("coursier-sbt-resolvers")

plugin/src/main/scala-2.10/coursier/Tasks.scala

@@ -374,6 +374,7 @@ object Tasks {
 
       val verbosityLevel = coursierVerbosity.value
 
+      val userEnabledProfiles = mavenProfiles.value
 
       val startRes = Resolution(
         currentProject.dependencies.map {
@@ -381,6 +382,7 @@ object Tasks {
             dep.copy(exclusions = dep.exclusions ++ exclusions)
         }.toSet,
         filter = Some(dep => !dep.optional),
+        profileActivation = Some(core.Resolution.userProfileActivation(userEnabledProfiles)),
         forceVersions =
           // order matters here
           userForceVersions ++

plugin/src/sbt-test/sbt-coursier/profiles/build.sbt

@@ -0,0 +1,12 @@
+scalaVersion := "2.11.8"
+
+libraryDependencies += "org.apache.spark" %% "spark-sql" % "1.6.2"
+
+mavenProfiles += "hadoop-2.6"
+
+coursierCachePolicies := {
+  if (sys.props("os.name").startsWith("Windows"))
+    coursierCachePolicies.value
+  else
+    Seq(coursier.CachePolicy.ForceDownload)
+}

plugin/src/sbt-test/sbt-coursier/profiles/output

@@ -0,0 +1 @@
+OK

plugin/src/sbt-test/sbt-coursier/profiles/project/plugins.sbt

@@ -0,0 +1,11 @@
+{
+  val pluginVersion = sys.props.getOrElse(
+    "plugin.version",
+    throw new RuntimeException(
+      """|The system property 'plugin.version' is not defined.
+         |Specify this property using the scriptedLaunchOpts -D.""".stripMargin
+    )
+  )
+
+  addSbtPlugin("io.get-coursier" % "sbt-coursier" % pluginVersion)
+}

plugin/src/sbt-test/sbt-coursier/profiles/src/main/scala/Main.scala

@@ -0,0 +1,19 @@
+import java.io.File
+import java.nio.file.Files
+
+object Main extends App {
+  val p = new java.util.Properties
+  p.load(
+    Thread.currentThread()
+      .getContextClassLoader
+      .getResource("common-version-info.properties")
+      .openStream()
+  )
+
+  val hadoopVersion = p.getProperty("version")
+  Console.err.println(s"Found hadoop version $hadoopVersion")
+
+  assert(hadoopVersion == "2.6.0")
+
+  Files.write(new File("output").toPath, "OK".getBytes("UTF-8"))
+}

plugin/src/sbt-test/sbt-coursier/profiles/test

@@ -0,0 +1,3 @@
+$ delete output
+> run
+$ exists output