Add sbt-mima-plugin

docs/build.sbt

@@ -2,6 +2,7 @@ import com.typesafe.sbt.SbtSite.SiteKeys._
 import com.typesafe.sbt.SbtGhPages.GhPagesKeys._
 
 enablePlugins(DisablePublishingPlugin)
+disablePlugins(BinCompatPlugin)
 
 site.settings
 
@@ -16,3 +17,4 @@ ghpagesNoJekyll := false
 includeFilter in makeSite := "*.yml" | "*.md" | "*.html" | "*.css" | "*.png" | "*.jpg" | "*.gif" | "*.js" | "*.swf"
 
 git.remoteRepo := "[email protected]:Verizon/knobs.git"
+

project.sbt

@@ -30,10 +30,15 @@ lazy val zookeeper = project.dependsOn(core)
 
 lazy val docs = project.dependsOn(core, zookeeper)
 
+(binCompatVersion in ThisBuild) := Some(scalazCrossVersioner.value("4.0.30"))
+
 enablePlugins(DisablePublishingPlugin)
+binCompatVersion := None
 
 // Some tests set system properties, which results in a
 // ConcurrentModificationException while other tests are iterating
 // over sys.props.  For a stable build, we need to reduce test
 // concurrency to 1 across modules.
 concurrentRestrictions in Global += Tags.limit(Tags.Test, 1)
+
+

project/BinCompatPlugin.scala

@@ -0,0 +1,36 @@
+//: ----------------------------------------------------------------------------
+//: Copyright (C) 2017 Verizon.  All Rights Reserved.
+//:
+//:   Licensed under the Apache License, Version 2.0 (the "License");
+//:   you may not use this file except in compliance with the License.
+//:   You may obtain a copy of the License at
+//:
+//:       http://www.apache.org/licenses/LICENSE-2.0
+//:
+//:   Unless required by applicable law or agreed to in writing, software
+//:   distributed under the License is distributed on an "AS IS" BASIS,
+//:   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//:   See the License for the specific language governing permissions and
+//:   limitations under the License.
+//:
+//: ----------------------------------------------------------------------------
+import sbt._, Keys._
+import com.typesafe.tools.mima.plugin.MimaPlugin
+
+object BinCompatPlugin extends AutoPlugin {
+  object autoImport {
+    val binCompatVersion = settingKey[Option[String]]("version to check binary compatibility against")
+  }
+
+  import autoImport._
+  import MimaPlugin.autoImport._
+
+  override def requires = MimaPlugin && verizon.build.ScalazPlugin
+
+  override def trigger = allRequirements
+
+  override lazy val projectSettings = Seq(
+    mimaPreviousArtifacts := binCompatVersion.value
+      .fold(Set.empty[ModuleID])(v => Set(organization.value %% name.value % v))
+  )
+}

project/plugins.sbt

@@ -22,9 +22,10 @@ resolvers += Resolver.url(
 addSbtPlugin("io.verizon.build" % "sbt-rig" % "2.0.29")
 
 // docs
-addSbtPlugin("com.typesafe.sbt"  % "sbt-site"    % "0.8.1")
-addSbtPlugin("com.typesafe.sbt"  % "sbt-ghpages" % "0.5.3")
-addSbtPlugin("org.tpolecat"      % "tut-plugin"  % "0.4.7")
-addSbtPlugin("com.eed3si9n"      % "sbt-unidoc"  % "0.3.2")
+addSbtPlugin("com.typesafe.sbt"  % "sbt-site"        % "0.8.1")
+addSbtPlugin("com.typesafe.sbt"  % "sbt-ghpages"     % "0.5.3")
+addSbtPlugin("com.typesafe"      % "sbt-mima-plugin" % "0.1.14")
+addSbtPlugin("org.tpolecat"      % "tut-plugin"      % "0.4.7")
+addSbtPlugin("com.eed3si9n"      % "sbt-unidoc"      % "0.3.2")
 
 scalacOptions += "-deprecation"