move to sbt 1. don't support or publish for 0.13 anymore

.travis.yml

@@ -1,34 +1,19 @@
 language: scala
 
-# Needed for openjdk6
-dist: precise
-sudo: required
-addons:
-  hosts:
-    - localhost
-  hostname: localhost.local
-
 jdk:
-  - openjdk6
-
-# cache stuff, hopefully shortening build times
-cache:
-  directories:
-  - $HOME/.ivy2
-  - $HOME/.sbt/boot
-  - $HOME/.sbt/launchers
+  - oraclejdk8
 
 script:
-  # work around https://github.com/travis-ci/travis-ci/issues/9713
-  - if [[ $JAVA_HOME = *java-6* ]]; then jdk_switcher use openjdk6; fi
-  - java -version
-  # also, Maven Central and Bintray are unreachable over HTTPS
-  - if [[ $JAVA_HOME = *java-6* ]]; then SBTOPTS="-Dsbt.override.build.repos=true -Dsbt.repository.config=./.sbtrepos"; fi
-  - sbt $SBTOPTS test
+  - sbt test
 
 before_cache:
   - find $HOME/.sbt -name "*.lock" | xargs rm
   - find $HOME/.ivy2 -name "ivydata-*.properties" | xargs rm
+cache:
+  directories:
+  - $HOME/.ivy2
+  - $HOME/.sbt/boot
+  - $HOME/.sbt/launchers
 
 notifications:
   email:

README.md

@@ -1,19 +1,44 @@
 # Scala modules sbt plugin
 
-This is an sbt plugin for building Scala modules (scala-xml,
-scala-parser-combinators, and so on).
+This is an sbt plugin for building Scala modules.
 
-The major benefit of the plugin is to provide automated tag-based
-publishing.  A release is made by pushing a tag to GitHub.  Travis
-then stages artifacts on Sonatype.  Pressing "Close" and "Release" in
-the Sonatype web UI will then send the artifacts to Maven Central.
+## What modules use it?
+
+* [scala-async](https://github.com/scala/scala-async)
+* [scala-collection-compat](https://github.com/scala/scala-collection-compat)
+* [scala-java8-compat](https://github.com/scala/scala-java8-compat)
+* [scala-parallel-collections](https://github.com/scala/scala-parallel-collections)
+* [scala-parser-combinators](https://github.com/scala/scala-parser-combinators)
+* [scala-partest](https://github.com/scala/scala-partest)
+* [scala-swing](https://github.com/scala/scala-swing)
+* [scala-xml](https://github.com/scala/scala-xml)
+
+## Why this plugin?
+
+Having a shared plugin reduces duplication between the above
+repositories.  Reducing duplication makes maintenance easier and
+helps ensure consistency.
+
+A major feature of the plugin is automated tag-based publishing.  A
+release is made by pushing a tag to GitHub.  Travis-CI then stages
+artifacts on Sonatype.  Pressing "Close" and "Release" in the Sonatype
+web UI will then send the artifacts to Maven Central.
+
+## Branches and versions
+
+The main development branch is 2.x; only sbt 1 is supported there.
+
+sbt 0.13 support is on the legacy 1.x branch.
+
+Scala modules are encouraged to move to sbt 1 on their primary
+development branches as soon as reasonably possible.
 
 ## Usage
 
 Add the plugin to the `project/plugins.sbt` file:
 
 ```
-addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module" % "1.0.14")
+addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module" % "2.0.0")
 ```
 
 Then, in your `build.sbt` add:
@@ -22,7 +47,7 @@ Then, in your `build.sbt` add:
 import ScalaModulePlugin._
 
 scalaModuleSettings // in a multi-project build, you might want to apply these settings only to the
-                    // main project (example: scala-parallel-collections)
+                    // main project (see e.g. scala-parallel-collections)
 
 name         := "<module name>"
 repoName     := "<GitHub repo name>" // the repo under github.com/scala/, only required if different from name
@@ -35,13 +60,10 @@ scalaVersionsByJvm in ThisBuild := {
   val v211 = "2.11.12"
   val v212 = "2.12.8"
   val v213 = "2.13.0-M5"
-
   // Map[JvmMajorVersion, List[(ScalaVersion, UseForPublishing)]]
   Map(
-    6 -> List(v211 -> true),
-    7 -> List(v211 -> false),
-    8 -> List(v212 -> true, v213 -> true, v211 -> false),
-    9 -> List(v212, v213, v211).map(_ -> false))
+    8 -> List(v211 -> true, v212 -> true, v213 -> true),
+    9 -> List(v211, v212, v213).map(_ -> false))
 }
 
 mimaPreviousVersion := Some("1.0.0") // enables MiMa (`None` by default, which disables it)

build.sbt

@@ -1,31 +1,11 @@
-git.baseVersion   := "1.0.0"
+enablePlugins(SbtPlugin)
 
+git.baseVersion   := "2.0.0"
 versionWithGit
 
-name              := "sbt-scala-module"
-
-organization      := "org.scala-lang.modules"
-
-sbtPlugin         := true
-
-// sbtVersion in Global := "0.13.1"
-
-// scalaVersion in Global := "2.10.3"
-
-// publishTo         := Some(if (version.value.trim.endsWith("SNAPSHOT")) Classpaths.sbtPluginSnapshots else Classpaths.sbtPluginReleases)
-
-publishMavenStyle := false
-
-resolvers         += Classpaths.sbtPluginReleases
-
-licenses          := Seq(("Apache-2.0", url("https://www.apache.org/licenses/LICENSE-2.0")))
-
-bintrayRepository := "sbt-plugins"
-
-bintrayOrganization := None
-
-// Version 0.9.1 requires Java 8 (on 6 we get NoClassDefFoundError: java/util/function/Predicate).
-// We still run our plugin builds for 2.11 on Java 6, so we cannot upgrade.
-addSbtPlugin("com.typesafe.sbt" % "sbt-osgi" % "0.8.0")
+name                := "sbt-scala-module"
+organization        := "org.scala-lang.modules"
+licenses            := Seq(("Apache-2.0", url("https://www.apache.org/licenses/LICENSE-2.0")))
 
+addSbtPlugin("com.typesafe.sbt" % "sbt-osgi" % "0.9.4")
 addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.3.0")

project/build.properties

@@ -1 +1 @@
-sbt.version=0.13.18
+sbt.version=1.2.8

project/plugins.sbt

@@ -1,5 +1,2 @@
-// careful upgrading this; we can't move to a version that doesn't
-// work on Java 6
-addSbtPlugin("com.typesafe.sbt" % "sbt-git" % "0.6.4")
-
+addSbtPlugin("com.typesafe.sbt" % "sbt-git" % "1.0.0")
 addSbtPlugin("org.foundweekends" % "sbt-bintray" % "0.5.4")

src/main/scala/ScalaModulePlugin.scala

@@ -3,8 +3,12 @@ package com.lightbend.tools.scalamoduleplugin
 import com.typesafe.sbt.osgi.{OsgiKeys, SbtOsgi}
 import com.typesafe.tools.mima.plugin.MimaKeys._
 import com.typesafe.tools.mima.plugin.MimaPlugin
+
 import sbt.Keys._
-import sbt.{Def, _}
+import sbt._
+import sbt.internal.librarymanagement.IvySbt
+import sbt.librarymanagement.ivy.IvyDependencyResolution
+import sbt.librarymanagement.{ UnresolvedWarningConfiguration, UpdateConfiguration }
 
 object ScalaModulePlugin extends AutoPlugin {
   val repoName            = settingKey[String]("The name of the repository under github.com/scala/.")
@@ -150,26 +154,18 @@ object ScalaModulePlugin extends AutoPlugin {
 
   lazy val scalaModuleSettingsJVM: Seq[Setting[_]] = scalaModuleOsgiSettings
 
-  // adapted from https://github.com/typesafehub/migration-manager/blob/0.1.6/sbtplugin/src/main/scala/com/typesafe/tools/mima/plugin/SbtMima.scala#L69
+  // adapted from https://github.com/lightbend/migration-manager/blob/0.3.0/sbtplugin/src/main/scala/com/typesafe/tools/mima/plugin/SbtMima.scala#L112
   private def artifactExists(organization: String, name: String, scalaBinaryVersion: String, version: String, ivy: IvySbt, s: TaskStreams): Boolean = {
-    val moduleId = new ModuleID(organization, s"${name}_$scalaBinaryVersion", version)
-    val moduleSettings = InlineConfiguration(
-      "dummy" % "test" % "version",
-      ModuleInfo("dummy-test-project-for-resolving"),
-      dependencies = Seq(moduleId))
-    val ivyModule = new ivy.Module(moduleSettings)
-    try {
-      IvyActions.update(
-        ivyModule,
-        new UpdateConfiguration(
-          retrieve = None,
-          missingOk = false,
-          logging = UpdateLogging.DownloadOnly),
-        s.log)
-      true
-    } catch {
-      case _: ResolveException => false
-    }
+    val moduleId = ModuleID(organization, s"${name}_$scalaBinaryVersion", version)
+    val depRes = IvyDependencyResolution(ivy.configuration)
+    val module = depRes.wrapDependencyInModule(moduleId)
+    val reportEither = depRes.update(
+      module,
+      UpdateConfiguration() withLogging UpdateLogging.DownloadOnly,
+      UnresolvedWarningConfiguration(),
+      s.log
+    )
+    reportEither.fold(_ => false, _ => true)
   }
 
   // Internal task keys for the MiMa settings
@@ -185,10 +181,11 @@ object ScalaModulePlugin extends AutoPlugin {
     canRunMima := {
       val mimaVer = mimaPreviousVersion.value
       val s = streams.value
+      val ivySbt = Keys.ivySbt.value
       if (mimaVer.isEmpty) {
         s.log.warn("MiMa will NOT run because no mimaPreviousVersion is provided.")
         false
-      } else if (!artifactExists(organization.value, name.value, scalaBinaryVersion.value, mimaVer.get, ivySbt.value, s)) {
+      } else if (!artifactExists(organization.value, name.value, scalaBinaryVersion.value, mimaVer.get, ivySbt, s)) {
         s.log.warn(s"""MiMa will NOT run because the previous artifact "${organization.value}" % "${name.value}_${scalaBinaryVersion.value}" % "${mimaVer.get}" could not be resolved (note the binary Scala version).""")
         false
       } else {