Add publish settings to sbt build

project/Publish.scala

@@ -0,0 +1,69 @@
+import sbt._
+import Keys._
+import java.io.File
+
+object Publish {
+  final val Snapshot = "-SNAPSHOT"
+
+  lazy val settings = Seq(
+    crossPaths  := false,
+    pomExtra    := akkaPomExtra,
+    publishTo   := akkaPublishTo,
+    credentials ++= akkaCredentials
+  )
+
+  lazy val versionSettings = Seq(
+    commands += stampVersion
+  )
+
+  def akkaPomExtra = {
+    <inceptionYear>2009</inceptionYear>
+    <url>http://akka.io</url>
+    <organization>
+      <name>Scalable Solutions AB</name>
+      <url>http://scalablesolutions.se</url>
+    </organization>
+    <licenses>
+      <license>
+        <name>Apache 2</name>
+        <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
+        <distribution>repo</distribution>
+      </license>
+    </licenses>
+  }
+
+  def akkaPublishTo: Option[Resolver] = {
+    val property = Option(System.getProperty("akka.publish.repository"))
+    val repo = property map { "Akka Publish Repository" at _ }
+    val m2repo = Path.userHome / ".m2" /"repository"
+    repo orElse Some(Resolver.file("Local Maven Repository", m2repo))
+  }
+
+  def akkaCredentials: Seq[Credentials] = {
+    val property = Option(System.getProperty("akka.publish.credentials"))
+    property map (f => Credentials(new File(f))) toSeq
+  }
+
+  def stampVersion = Command.command("stamp-version") { state =>
+    append((version in ThisBuild ~= stamp) :: Nil, state)
+  }
+
+  // TODO: replace with extracted.append when updated to sbt 0.10.1
+  def append(settings: Seq[Setting[_]], state: State): State = {
+    val extracted = Project.extract(state)
+    import extracted._
+    val append = Load.transformSettings(Load.projectScope(currentRef), currentRef.build, rootProject, settings)
+    val newStructure = Load.reapply(session.original ++ append, structure)
+    Project.setProject(session, newStructure, state)
+  }
+
+  def stamp(version: String): String = {
+    if (version endsWith Snapshot) (version stripSuffix Snapshot) + "-" + timestamp(System.currentTimeMillis)
+    else version
+  }
+
+  def timestamp(time: Long): String = {
+    val format = new java.text.SimpleDateFormat("yyyyMMdd-HHmmss")
+    format.format(new java.util.Date(time))
+  }
+}