update build, add publishing directives

Author: bjornregnell

build.sbt

@@ -2,7 +2,6 @@ lazy val Version = "0.1.4"
 lazy val Name    = "introprog"
 
 name := Name
-organization := "se.lth.cs"
 version := Version
 scalaVersion := "2.12.6"
 fork in (Compile, console) := true
@@ -33,3 +32,38 @@ scalacOptions in (Compile, doc) ++= Seq(
   "-doc-root-content", (baseDirectory in ThisBuild).value.toString + "/src/rootdoc.txt",
   "-doc-source-url", s"https://github.com/lunduniversity/introprog-scalalib/tree/master€{FILE_PATH}.scala"
 )
+
+// Below enables publishing to central.sonatype.org according to
+//  https://www.scala-sbt.org/release/docs/Using-Sonatype.html
+
+ThisBuild / organization := "se.lth.cs"
+ThisBuild / organizationName := "LTH"
+ThisBuild / organizationHomepage := Some(url("http://cs.lth.se/"))
+
+ThisBuild / scmInfo := Some(
+  ScmInfo(
+    url("https://github.com/lunduniversity/introprog-scalalib"),
+    "scm:git@github.com:lunduniversity/introprog-scalalib.git"
+  )
+)
+ThisBuild / developers := List(
+  Developer(
+    id    = "bjornregnell",
+    name  = "Bjorn Regnell",
+    email = "bjorn.regnell@cs.lth.se",
+    url   = url("http://cs.lth.se/bjornregnell")
+  )
+)
+
+ThisBuild / description := "Scala utilities for introductory Computer Science teaching."
+ThisBuild / licenses := List("BSD 2-Clause" -> new URL("https://opensource.org/licenses/BSD-2-Clause"))
+ThisBuild / homepage := Some(url("https://github.com/lunduniversity/introprog-scalalib"))
+
+// Remove all additional repository other than Maven Central from POM
+ThisBuild / pomIncludeRepository := { _ => false }
+ThisBuild / publishTo := {
+  val nexus = "https://oss.sonatype.org/"
+  if (isSnapshot.value) Some("snapshots" at nexus + "content/repositories/snapshots")
+  else Some("releases" at nexus + "service/local/staging/deploy/maven2")
+}
+ThisBuild / publishMavenStyle := true