sbt 0.13.16-M1 ScriptedPlugin does not support sbt 1.0.0-RC1 or later

[xuwei-k]

steps

build.sbt

ScriptedPlugin.scriptedSettings

sbtPlugin := true

project/plugin.sbt

libraryDependencies += "org.scala-sbt" % "scripted-plugin" % sbtVersion.value

project/build.properties

sbt.version=0.13.16-M1

execute sbt "^^ 1.0.0-RC1" scrpted

problem

[info] Setting `sbtVersion in pluginCrossBuild` to 1.0.0-RC1
scala.MatchError: 1.0 (of class java.lang.String)
    at sbt.ScriptedPlugin$$anonfun$15.apply(ScriptedPlugin.scala:105)
    at sbt.ScriptedPlugin$$anonfun$15.apply(ScriptedPlugin.scala:104)
    at sbt.EvaluateSettings$MixedNode.evaluate0(INode.scala:175)
    at sbt.EvaluateSettings$INode.evaluate(INode.scala:135)
    at sbt.EvaluateSettings$$anonfun$sbt$EvaluateSettings$$submitEvaluate$1.apply$mcV$sp(INode.scala:69)
    at sbt.EvaluateSettings.sbt$EvaluateSettings$$run0(INode.scala:78)
    at sbt.EvaluateSettings$$anon$3.run(INode.scala:74)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:748)
[error] scala.MatchError: 1.0 (of class java.lang.String)
[error] Use 'last' for the full log.

notes

• sbt.CrossVersion.binarySbtVersion("1.0.0-RC1") returns "1.0" (in sbt 0.13.16-M1 and sbt 1.0.0-RC2) https://github.com/sbt/sbt/blob/v0.13.16-M1/util/cross/src/main/input_sources/CrossVersionUtil.scala
• https://github.com/sbt/sbt/blob/v0.13.16-M1/scripted/plugin/src/main/scala/sbt/ScriptedPlugin.scala#L105-L116

[xuwei-k]

workaround

build.sbt

ScriptedPlugin.scriptedSettings.filterNot(_.key.key.label == libraryDependencies.key.label)

sbtPlugin := true

libraryDependencies ++= {
  CrossVersion.binarySbtVersion(scriptedSbt.value) match {
    case "0.13" =>
      Seq(
        "org.scala-sbt" % "scripted-sbt" % scriptedSbt.value % scriptedConf.toString,
        "org.scala-sbt" % "sbt-launch" % scriptedSbt.value % scriptedLaunchConf.toString
      )
    case _ =>
      Seq(
        "org.scala-sbt" %% "scripted-sbt" % scriptedSbt.value % scriptedConf.toString,
        "org.scala-sbt" % "sbt-launch" % scriptedSbt.value % scriptedLaunchConf.toString
      )
  }
}

[xuwei-k]

sbt.CrossVersion.binarySbtVersion("1.0.0-RC1") returns "1.0" (in sbt 0.13.16-M1 and sbt 1.0.0-RC2)

sbt 1.0.0-RC2 will keep binary compatibility with 1.0.0 final? if not, sbt plugin authers should not publish any sbt plugins use sbt 0.13.16-M1, 1.0.0-RC2 for prevent binary compatibility issue. sbt generate following pom.xml in target/scala-2.12/sbt-1.0/foo-0.1-SNAPSHOT.pom if set ^^ 1.0.0-RC2

    <properties>
        <scalaVersion>2.12</scalaVersion>
        <sbtVersion>1.0</sbtVersion>
    </properties>

[xuwei-k]

https://gitter.im/sbt/sbt-contrib?at=596c57230de4d2545e352519

we intend to keep 1.0.0-RC2 bincompat with 1.0.0 final
that's how Mark Harrah shipped previous versions of sbt
and that's how CrossUtil is coded for sbt